/* roulang page: index */
:root {
            --color-primary: #1A5C9E;
            --color-primary-hover: #164A7E;
            --color-primary-weak: #EAF2FA;
            --color-accent: #E79A3B;
            --color-accent-weak: #FEF3E2;
            --color-bg: #F5F8FC;
            --color-card: #FFFFFF;
            --color-text: #1B2A3D;
            --color-text-secondary: #5D6B7E;
            --color-text-light: #8A97A8;
            --color-border: rgba(26, 42, 61, 0.08);
            --color-border-strong: rgba(26, 42, 61, 0.16);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 2px 8px rgba(26, 42, 61, 0.06);
            --shadow-md: 0 8px 24px rgba(26, 42, 61, 0.08);
            --shadow-lg: 0 16px 40px rgba(26, 42, 61, 0.12);
            --shadow-hover: 0 12px 32px rgba(26, 42, 61, 0.14);
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 64px;
            --spacing-xxl: 96px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', 'Helvetica Neue', sans-serif;
            --font-mono: 'Roboto Mono', 'Consolas', 'Courier New', monospace;
            --transition: 0.24s cubic-bezier(0.4, 0, 0.2, 1);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            font-size: 16px;
            -webkit-text-size-adjust: 100%;
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--color-primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-wide {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }

        /* Header & Navigation */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(26, 42, 61, 0.04);
        }
        .site-header .container-wide {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 16px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--color-primary);
            white-space: nowrap;
            letter-spacing: 0.03em;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--color-primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: #fff;
        }
        .logo-icon svg {
            width: 20px;
            height: 20px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .main-nav>li {
            position: relative;
        }
        .main-nav>li>a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--color-text);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .main-nav>li>a:hover,
        .main-nav>li>a:focus-visible {
            background: var(--color-primary-weak);
            color: var(--color-primary);
        }
        .main-nav>li>a.active {
            background: var(--color-primary-weak);
            color: var(--color-primary);
            font-weight: 600;
        }
        .main-nav>li>a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 14px;
            right: 14px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 2px 2px 0 0;
        }
        .nav-arrow {
            display: inline-block;
            width: 10px;
            height: 10px;
            border-right: 2px solid currentColor;
            border-bottom: 2px solid currentColor;
            transform: rotate(45deg) translateY(-2px);
            transition: transform var(--transition);
        }
        .main-nav>li:hover .nav-arrow,
        .main-nav>li>a:focus-visible .nav-arrow {
            transform: rotate(225deg) translateY(-2px);
        }
        .mega-dropdown {
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%) translateY(8px);
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--color-border);
            padding: 24px;
            width: 920px;
            max-width: 90vw;
            opacity: 0;
            pointer-events: none;
            transition: all var(--transition);
            z-index: 1001;
        }
        .main-nav>li:hover .mega-dropdown,
        .main-nav>li>a:focus-visible+.mega-dropdown {
            opacity: 1;
            pointer-events: auto;
            transform: translateX(-50%) translateY(0);
        }
        .mega-dropdown-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 20px;
        }
        .mega-col h4 {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--color-text-light);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 10px;
            padding-bottom: 6px;
            border-bottom: 1px solid var(--color-border);
        }
        .mega-col ul li a {
            display: block;
            padding: 6px 8px;
            border-radius: 6px;
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            transition: all var(--transition);
        }
        .mega-col ul li a:hover {
            background: var(--color-primary-weak);
            color: var(--color-primary);
        }
        .mega-news-card {
            background: var(--color-bg);
            border-radius: var(--radius-md);
            padding: 14px;
            margin-bottom: 8px;
            border: 1px solid var(--color-border);
        }
        .mega-news-card .mega-news-date {
            font-size: 0.75rem;
            color: var(--color-text-light);
            font-family: var(--font-mono);
        }
        .mega-news-card .mega-news-title {
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--color-text);
            margin-top: 4px;
            line-height: 1.5;
        }
        .mega-tools {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .mega-tools a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 12px;
            background: var(--color-primary-weak);
            border-radius: 999px;
            font-size: 0.82rem;
            color: var(--color-primary);
            font-weight: 500;
            transition: all var(--transition);
        }
        .mega-tools a:hover {
            background: var(--color-primary);
            color: #fff;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            background: var(--color-primary-weak);
            border-radius: var(--radius-sm);
            border: none;
        }
        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: all var(--transition);
        }
        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .mobile-menu {
            display: none;
            background: #fff;
            border-top: 1px solid var(--color-border);
            padding: 16px 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
        }
        .mobile-menu.open {
            max-height: 80vh;
            overflow-y: auto;
            padding: 16px 24px;
            display: block;
        }
        .mobile-menu li a {
            display: block;
            padding: 10px 12px;
            font-size: 1rem;
            font-weight: 500;
            border-radius: var(--radius-sm);
            color: var(--color-text);
        }
        .mobile-menu li a:hover,
        .mobile-menu li a.active {
            background: var(--color-primary-weak);
            color: var(--color-primary);
        }
        .mobile-menu .mega-col {
            margin-top: 8px;
        }
        .mobile-menu .mega-col h4 {
            font-size: 0.78rem;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: 10px;
            font-size: 0.95rem;
            font-weight: 600;
            line-height: 1.5;
            transition: all var(--transition);
            text-align: center;
            white-space: nowrap;
            position: relative;
            cursor: pointer;
        }
        .btn:focus-visible {
            outline: 3px solid rgba(26, 92, 158, 0.35);
            outline-offset: 2px;
        }
        .btn-primary {
            background: var(--color-primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--color-primary-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }
        .btn-secondary {
            background: #fff;
            color: var(--color-primary);
            border: 1.5px solid var(--color-primary);
        }
        .btn-secondary:hover {
            background: var(--color-primary-weak);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
            color: var(--color-primary);
        }
        .btn-ghost {
            background: transparent;
            color: var(--color-primary);
            padding: 8px 16px;
            font-size: 0.88rem;
            font-weight: 500;
        }
        .btn-ghost:hover {
            background: var(--color-primary-weak);
            color: var(--color-primary-hover);
        }
        .btn-accent {
            background: var(--color-accent);
            color: #fff;
        }
        .btn-accent:hover {
            background: #d28a2e;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(231, 154, 59, 0.35);
            color: #fff;
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
            border-radius: 8px;
        }
        .btn-lg {
            padding: 14px 32px;
            font-size: 1.05rem;
            border-radius: 12px;
        }
        .btn-block {
            width: 100%;
        }

        /* Badge */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 0.78rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            line-height: 1.5;
        }
        .badge-primary {
            background: var(--color-primary-weak);
            color: var(--color-primary);
        }
        .badge-accent {
            background: var(--color-accent-weak);
            color: #b8731a;
        }
        .badge-neutral {
            background: #F0F3F7;
            color: var(--color-text-secondary);
        }
        .badge-date {
            font-family: var(--font-mono);
            font-size: 0.75rem;
            background: #F0F3F7;
            color: var(--color-text-secondary);
            padding: 3px 10px;
            border-radius: 6px;
        }

        /* Hero Bento */
        .hero-section {
            background: linear-gradient(135deg, #F5F8FC 0%, #EAF2FA 45%, #F5F8FC 100%);
            padding: var(--spacing-xl) 0 var(--spacing-lg);
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(26, 92, 158, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-bento {
            display: grid;
            grid-template-columns: 1.6fr 1fr;
            grid-template-rows: auto auto;
            gap: 20px;
            position: relative;
            z-index: 1;
        }
        .hero-main-card {
            grid-row: 1 / span 2;
            background: #fff;
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border);
            padding: 36px 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            position: relative;
            overflow: hidden;
        }
        .hero-main-card::after {
            content: '';
            position: absolute;
            bottom: -40px;
            right: -40px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(231, 154, 59, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--color-primary-weak);
            color: var(--color-primary);
            padding: 6px 14px;
            border-radius: 999px;
            font-size: 0.82rem;
            font-weight: 600;
            margin-bottom: 16px;
            width: fit-content;
        }
        .hero-main-card h1 {
            font-size: 2.15rem;
            line-height: 1.3;
            font-weight: 700;
            color: var(--color-text);
            letter-spacing: 0.01em;
            margin-bottom: 16px;
        }
        .hero-main-card h1 .highlight {
            color: var(--color-primary);
        }
        .hero-main-card p {
            font-size: 1.02rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
            margin-bottom: 24px;
            max-width: 520px;
        }
        .hero-cta-group {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }
        .hero-trust-row {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            align-items: center;
        }
        .hero-trust-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--color-text-secondary);
        }
        .hero-trust-item .num {
            font-family: var(--font-mono);
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--color-primary);
        }
        .hero-sub-card {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border);
            padding: 20px 24px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            transition: all var(--transition);
        }
        .hero-sub-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .hero-sub-card .sub-card-label {
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--color-text-light);
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }
        .hero-sub-card .sub-card-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--color-text);
        }
        .number-balls {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            align-items: center;
        }
        .number-ball {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            font-family: var(--font-mono);
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff;
            flex-shrink: 0;
        }
        .number-ball.red {
            background: #D9534F;
        }
        .number-ball.blue {
            background: #2B6CB0;
        }
        .number-ball.gray {
            background: #718096;
        }
        .number-ball.small {
            width: 28px;
            height: 28px;
            font-size: 0.75rem;
        }
        .hero-cta-bar {
            grid-column: 1 / -1;
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border);
            padding: 14px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .hero-cta-bar p {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            flex: 1;
            min-width: 200px;
        }
        .hero-cta-bar .btn {
            flex-shrink: 0;
        }

        /* Section Common */
        section {
            padding: var(--spacing-xl) 0;
        }
        .section-header {
            margin-bottom: var(--spacing-lg);
        }
        .section-header h2 {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.35;
            margin-bottom: 10px;
        }
        .section-header p {
            font-size: 0.98rem;
            color: var(--color-text-secondary);
            max-width: 680px;
            line-height: 1.8;
        }
        .section-subtitle {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--color-primary);
            background: var(--color-primary-weak);
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 10px;
            letter-spacing: 0.05em;
        }

        /* Feature Grid */
        .feature-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            grid-template-rows: auto auto;
            gap: 16px;
        }
        .feature-card {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border);
            padding: 24px;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            gap: 8px;
            position: relative;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: rgba(26, 92, 158, 0.3);
        }
        .feature-card.wide {
            grid-column: span 1;
            grid-row: span 2;
            padding: 32px 28px;
        }
        .feature-icon {
            width: 44px;
            height: 44px;
            background: var(--color-primary-weak);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 4px;
        }
        .feature-icon svg {
            width: 22px;
            height: 22px;
            color: var(--color-primary);
        }
        .feature-card h3 {
            font-size: 1.12rem;
            font-weight: 600;
            color: var(--color-text);
            line-height: 1.4;
        }
        .feature-card p {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
            flex: 1;
        }
        .feature-card .feature-link {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            margin-top: auto;
            transition: all var(--transition);
        }
        .feature-card .feature-link:hover {
            color: var(--color-primary-hover);
            gap: 8px;
        }
        .feature-data-row {
            display: flex;
            gap: 16px;
            margin-top: 12px;
            flex-wrap: wrap;
        }
        .feature-data-item {
            text-align: center;
            background: var(--color-bg);
            border-radius: var(--radius-sm);
            padding: 10px 14px;
            min-width: 70px;
        }
        .feature-data-item .data-value {
            font-family: var(--font-mono);
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-primary);
        }
        .feature-data-item .data-label {
            font-size: 0.72rem;
            color: var(--color-text-light);
        }

        /* Deep Content Section */
        .deep-content-section {
            background: #fff;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .deep-content-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: start;
        }
        .deep-content-block {
            background: var(--color-bg);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            border: 1px solid var(--color-border);
        }
        .deep-content-block h2 {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 16px;
            line-height: 1.4;
        }
        .deep-content-block h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--color-text);
            margin-top: 20px;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .deep-content-block p {
            font-size: 0.93rem;
            color: var(--color-text-secondary);
            line-height: 1.9;
            margin-bottom: 14px;
        }
        .deep-content-block .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 16px 0;
            font-size: 0.85rem;
        }
        .deep-content-block .data-table th {
            background: var(--color-primary-weak);
            color: var(--color-primary);
            font-weight: 600;
            padding: 10px 12px;
            text-align: left;
            border-bottom: 2px solid rgba(26, 92, 158, 0.2);
            font-size: 0.8rem;
            white-space: nowrap;
        }
        .deep-content-block .data-table td {
            padding: 10px 12px;
            border-bottom: 1px solid var(--color-border);
            color: var(--color-text-secondary);
        }
        .deep-content-block .data-table .mono {
            font-family: var(--font-mono);
            font-weight: 600;
            color: var(--color-text);
        }

        /* Scene Cards */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 20px;
        }
        .scene-card {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border);
            padding: 24px;
            transition: all var(--transition);
            position: relative;
        }
        .scene-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: rgba(26, 92, 158, 0.25);
        }
        .scene-number {
            position: absolute;
            top: 16px;
            right: 20px;
            font-family: var(--font-mono);
            font-size: 2.4rem;
            font-weight: 700;
            color: rgba(26, 92, 158, 0.08);
            line-height: 1;
            pointer-events: none;
        }
        .scene-card .scene-icon {
            width: 40px;
            height: 40px;
            background: var(--color-accent-weak);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 12px;
        }
        .scene-card .scene-icon svg {
            width: 20px;
            height: 20px;
            color: var(--color-accent);
        }
        .scene-card h3 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--color-text);
        }
        .scene-card p {
            font-size: 0.87rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }

        /* Case Cards */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
        }
        .case-card {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border);
            padding: 24px;
            transition: all var(--transition);
        }
        .case-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .case-card .case-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
        }
        .case-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--color-primary-weak);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--color-primary);
            font-size: 0.95rem;
            flex-shrink: 0;
        }
        .case-meta .case-name {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-text);
        }
        .case-meta .case-role {
            font-size: 0.78rem;
            color: var(--color-text-light);
        }
        .case-card p {
            font-size: 0.87rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
        }
        .case-result {
            display: inline-block;
            margin-top: 10px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--color-primary);
            background: var(--color-primary-weak);
            padding: 4px 12px;
            border-radius: 6px;
        }

        /* Price */
        .price-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            align-items: stretch;
        }
        .price-card {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border);
            padding: 28px 24px;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            position: relative;
        }
        .price-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .price-card.featured {
            border: 2px solid var(--color-primary);
            box-shadow: var(--shadow-md);
            position: relative;
            transform: scale(1.02);
        }
        .price-card.featured:hover {
            transform: scale(1.02) translateY(-3px);
        }
        .price-ribbon {
            position: absolute;
            top: 14px;
            right: -1px;
            background: var(--color-primary);
            color: #fff;
            font-size: 0.72rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 6px 0 0 6px;
        }
        .price-name {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-text-light);
            text-transform: uppercase;
            letter-spacing: 0.04em;
            margin-bottom: 8px;
        }
        .price-amount {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--color-text);
            font-family: var(--font-mono);
            margin-bottom: 4px;
        }
        .price-amount .currency {
            font-size: 1.1rem;
            font-weight: 500;
            color: var(--color-text-secondary);
        }
        .price-period {
            font-size: 0.82rem;
            color: var(--color-text-light);
            margin-bottom: 16px;
        }
        .price-features {
            list-style: none;
            margin-bottom: 20px;
            flex: 1;
        }
        .price-features li {
            padding: 7px 0;
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            display: flex;
            align-items: flex-start;
            gap: 8px;
            line-height: 1.6;
        }
        .price-features li::before {
            content: '✓';
            color: var(--color-primary);
            font-weight: 700;
            flex-shrink: 0;
        }
        .price-features li.disabled::before {
            content: '—';
            color: var(--color-text-light);
        }

        /* News */
        .news-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 20px;
        }
        .news-featured {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: all var(--transition);
        }
        .news-featured:hover {
            box-shadow: var(--shadow-hover);
        }
        .news-featured img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        .news-featured .news-body {
            padding: 20px 24px;
        }
        .news-featured .news-body h3 {
            font-size: 1.12rem;
            font-weight: 600;
            margin: 8px 0;
            line-height: 1.5;
        }
        .news-featured .news-body p {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .news-item {
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border);
            padding: 16px 20px;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .news-item:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(26, 92, 158, 0.25);
        }
        .news-item .news-meta {
            display: flex;
            gap: 12px;
            align-items: center;
        }
        .news-item h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-text);
            line-height: 1.5;
        }
        .news-item p {
            font-size: 0.84rem;
            color: var(--color-text-secondary);
            line-height: 1.65;
        }
        .read-more {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            margin-top: 4px;
            transition: all var(--transition);
        }
        .read-more:hover {
            gap: 8px;
            color: var(--color-primary-hover);
        }

        /* Brand Intro */
        .brand-intro-section {
            background: #fff;
        }
        .brand-intro-card {
            background: var(--color-bg);
            border-radius: var(--radius-lg);
            padding: 32px 36px;
            border: 1px solid var(--color-border);
        }
        .brand-intro-card h2 {
            font-size: 1.45rem;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--color-text);
        }
        .brand-intro-card p {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            line-height: 1.9;
            margin-bottom: 12px;
        }

        /* Entry Matrix */
        .entry-matrix {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 12px;
        }
        .entry-matrix .entry-item {
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border);
            padding: 18px 16px;
            text-align: center;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
        }
        .entry-matrix .entry-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: rgba(26, 92, 158, 0.3);
        }
        .entry-matrix .entry-item .entry-icon {
            width: 40px;
            height: 40px;
            background: var(--color-primary-weak);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .entry-matrix .entry-item .entry-icon svg {
            width: 18px;
            height: 18px;
            color: var(--color-primary);
        }
        .entry-matrix .entry-item span {
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--color-text);
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            margin-bottom: 10px;
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(26, 92, 158, 0.3);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 20px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-text);
            text-align: left;
            background: none;
            cursor: pointer;
            min-height: 48px;
            line-height: 1.5;
        }
        .faq-question:focus-visible {
            outline: 3px solid rgba(26, 92, 158, 0.35);
            outline-offset: -3px;
        }
        .faq-icon {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            position: relative;
            transition: transform var(--transition);
        }
        .faq-icon::before,
        .faq-icon::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            background: var(--color-primary);
            border-radius: 2px;
            transition: all var(--transition);
        }
        .faq-icon::before {
            width: 14px;
            height: 2px;
            transform: translate(-50%, -50%);
        }
        .faq-icon::after {
            width: 2px;
            height: 14px;
            transform: translate(-50%, -50%);
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 20px;
        }
        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 0 20px 20px;
        }
        .faq-answer p {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            line-height: 1.85;
            padding-top: 4px;
            border-top: 1px dashed var(--color-border);
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, #EAF2FA 0%, #D8E6F5 50%, #EAF2FA 100%);
            padding: var(--spacing-xl) 0;
        }
        .cta-card {
            background: #fff;
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--color-border);
            padding: 40px 36px;
            text-align: center;
            max-width: 760px;
            margin: 0 auto;
        }
        .cta-card h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 10px;
        }
        .cta-card p {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            margin-bottom: 24px;
        }
        .cta-card .cta-buttons {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* Footer */
        .site-footer {
            background: #1B2A3D;
            color: #DCE7F2;
            padding: 48px 0 24px;
        }
        .site-footer .container-wide {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 32px;
        }
        .footer-brand .logo {
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand .logo-icon {
            background: var(--color-primary);
        }
        .footer-brand p {
            font-size: 0.85rem;
            color: #9FB3C9;
            line-height: 1.8;
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 0.88rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.04em;
        }
        .footer-col ul li a {
            font-size: 0.85rem;
            color: #9FB3C9;
            display: block;
            padding: 4px 0;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .footer-tags a {
            font-size: 0.78rem;
            color: #9FB3C9;
            background: rgba(255, 255, 255, 0.06);
            padding: 4px 10px;
            border-radius: 6px;
            transition: all var(--transition);
        }
        .footer-tags a:hover {
            background: rgba(255, 255, 255, 0.14);
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 32px;
            padding-top: 20px;
            text-align: center;
            font-size: 0.8rem;
            color: #7E92A8;
        }
        .footer-bottom a {
            color: #9FB3C9;
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        .footer-bottom .footer-links {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 8px;
        }
        .footer-bottom p {
            margin-bottom: 4px;
        }

        /* Trend List */
        .trend-list {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border);
            overflow: hidden;
        }
        .trend-list-header {
            background: var(--color-primary-weak);
            padding: 12px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
        }
        .trend-list-header h3 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-primary);
        }
        .trend-list-header .badge-date {
            font-size: 0.72rem;
        }
        .trend-list-item {
            padding: 12px 20px;
            border-bottom: 1px solid var(--color-border);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .trend-list-item:last-child {
            border-bottom: none;
        }
        .trend-list-item .trend-period {
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--color-text-light);
            font-family: var(--font-mono);
            white-space: nowrap;
        }
        .trend-list-item .number-balls .number-ball {
            width: 28px;
            height: 28px;
            font-size: 0.72rem;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-bento {
                grid-template-columns: 1fr 1fr;
            }
            .hero-main-card {
                grid-row: auto;
                grid-column: 1 / -1;
            }
            .feature-grid {
                grid-template-columns: 1fr 1fr;
                grid-template-rows: auto;
            }
            .feature-card.wide {
                grid-column: 1 / -1;
                grid-row: auto;
            }
            .deep-content-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .price-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .price-card.featured {
                transform: none;
            }
            .price-card.featured:hover {
                transform: translateY(-3px);
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .site-footer .container-wide {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .main-nav {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .mobile-menu.open {
                display: block;
                max-height: 70vh;
                overflow-y: auto;
            }
        }

        @media (max-width: 768px) {
            .site-header .container-wide {
                height: 56px;
                padding: 0 16px;
            }
            .logo {
                font-size: 1.15rem;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
                border-radius: 8px;
            }
            .hero-section {
                padding: 40px 0 32px;
            }
            .hero-bento {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .hero-main-card {
                padding: 24px 20px;
            }
            .hero-main-card h1 {
                font-size: 1.55rem;
            }
            .hero-main-card p {
                font-size: 0.9rem;
            }
            .hero-sub-card {
                padding: 16px 18px;
            }
            .hero-cta-bar {
                flex-direction: column;
                align-items: stretch;
                text-align: center;
                padding: 14px 16px;
            }
            .hero-cta-bar .btn {
                width: 100%;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .feature-card.wide {
                grid-column: auto;
            }
            .scene-grid {
                grid-template-columns: 1fr;
            }
            .case-grid {
                grid-template-columns: 1fr;
            }
            section {
                padding: 48px 0;
            }
            .container,
            .container-wide {
                padding: 0 16px;
            }
            .section-header h2 {
                font-size: 1.35rem;
            }
            .deep-content-block {
                padding: 20px 18px;
            }
            .deep-content-block h2 {
                font-size: 1.2rem;
            }
            .news-featured img {
                height: 160px;
            }
            .news-featured .news-body {
                padding: 16px 18px;
            }
            .brand-intro-card {
                padding: 20px 18px;
            }
            .cta-card {
                padding: 28px 20px;
            }
            .cta-card h2 {
                font-size: 1.3rem;
            }
            .site-footer .container-wide {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .entry-matrix {
                grid-template-columns: repeat(2, 1fr);
            }
            .mega-dropdown {
                display: none;
            }
            .trend-list-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        @media (max-width: 480px) {
            .hero-main-card h1 {
                font-size: 1.32rem;
            }
            .hero-cta-group {
                flex-direction: column;
            }
            .hero-cta-group .btn {
                width: 100%;
            }
            .hero-trust-row {
                gap: 12px;
            }
            .hero-trust-item {
                font-size: 0.75rem;
            }
            .number-ball {
                width: 30px;
                height: 30px;
                font-size: 0.78rem;
            }
            .number-ball.small {
                width: 24px;
                height: 24px;
                font-size: 0.68rem;
            }
            .entry-matrix {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .entry-matrix .entry-item {
                padding: 12px 10px;
            }
            .section-header p {
                font-size: 0.88rem;
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #1A5C9E;
            --color-primary-hover: #164A7E;
            --color-primary-weak: #EAF2FA;
            --color-accent: #E79A3B;
            --color-accent-weak: #FEF3E2;
            --color-bg: #F5F8FC;
            --color-card: #FFFFFF;
            --color-text: #1B2A3D;
            --color-text-secondary: #5D6B7E;
            --color-text-light: #8A97A8;
            --color-border: rgba(26, 42, 61, 0.08);
            --color-border-strong: rgba(26, 42, 61, 0.16);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 2px 8px rgba(26, 42, 61, 0.06);
            --shadow-md: 0 8px 24px rgba(26, 42, 61, 0.08);
            --shadow-lg: 0 16px 40px rgba(26, 42, 61, 0.12);
            --shadow-hover: 0 12px 32px rgba(26, 42, 61, 0.14);
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 64px;
            --spacing-xxl: 96px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', 'Helvetica Neue', sans-serif;
            --font-mono: 'Roboto Mono', 'Consolas', 'Courier New', monospace;
            --transition: 0.24s cubic-bezier(0.4, 0, 0.2, 1);
        }
        *, *::before, *::after {
            box-sizing: border-box;
        }
        html {
            font-size: 16px;
            -webkit-text-size-adjust: 100%;
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--color-primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-wide {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(26, 42, 61, 0.04);
        }
        .site-header .container-wide {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 16px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--color-primary);
            white-space: nowrap;
            letter-spacing: 0.03em;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--color-primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: #fff;
        }
        .logo-icon svg {
            width: 20px;
            height: 20px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .main-nav > li {
            position: relative;
        }
        .main-nav > li > a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--color-text);
            transition: all var(--transition);
            white-space: nowrap;
            position: relative;
        }
        .main-nav > li > a:hover,
        .main-nav > li > a:focus-visible {
            background: var(--color-primary-weak);
            color: var(--color-primary);
        }
        .main-nav > li > a.active {
            background: var(--color-primary-weak);
            color: var(--color-primary);
            font-weight: 600;
        }
        .main-nav > li > a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 14px;
            right: 14px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 2px 2px 0 0;
        }
        .nav-arrow {
            display: inline-block;
            width: 10px;
            height: 10px;
            border-right: 2px solid currentColor;
            border-bottom: 2px solid currentColor;
            transform: rotate(45deg) translateY(-2px);
            transition: transform var(--transition);
        }
        .main-nav > li:hover .nav-arrow,
        .main-nav > li > a:focus-visible .nav-arrow {
            transform: rotate(225deg) translateY(-2px);
        }
        .mega-panel {
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%) translateY(8px);
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--color-border);
            padding: 24px;
            min-width: 520px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            opacity: 0;
            visibility: hidden;
            transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
            z-index: 1001;
        }
        .main-nav > li:hover .mega-panel,
        .main-nav > li > a:focus-visible + .mega-panel {
            opacity: 1;
            visibility: visible;
            transform: translateX(-50%) translateY(0);
        }
        .mega-col h4 {
            margin: 0 0 12px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-text-secondary);
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }
        .mega-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: grid;
            gap: 6px;
        }
        .mega-col ul a {
            display: block;
            padding: 8px 10px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            color: var(--color-text);
            transition: all var(--transition);
        }
        .mega-col ul a:hover {
            background: var(--color-primary-weak);
            color: var(--color-primary);
        }
        .mega-news-card {
            background: var(--color-bg);
            border-radius: var(--radius-md);
            padding: 14px 16px;
            border: 1px solid var(--color-border);
        }
        .mega-news-date {
            font-size: 0.78rem;
            color: var(--color-text-light);
            margin-bottom: 6px;
        }
        .mega-news-title {
            font-size: 0.88rem;
            font-weight: 600;
            font-family: var(--font-mono);
            color: var(--color-text);
        }
        .mobile-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--color-border);
            background: #fff;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .mobile-toggle svg {
            width: 20px;
            height: 20px;
            stroke: var(--color-primary);
        }
        .site-footer {
            background: #1B2A3D;
            color: #DCE7F2;
            padding: var(--spacing-xl) 0 0;
            margin-top: var(--spacing-xl);
        }
        .site-footer .container-wide {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: var(--spacing-lg);
        }
        .footer-brand .logo {
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-brand .logo-icon {
            background: var(--color-accent);
            color: #1B2A3D;
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: #B8C4D4;
            margin: 0;
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin: 0 0 16px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: grid;
            gap: 8px;
        }
        .footer-col ul a {
            font-size: 0.9rem;
            color: #B8C4D4;
            transition: color var(--transition);
        }
        .footer-col ul a:hover {
            color: #fff;
        }
        .footer-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .footer-tags a {
            font-size: 0.8rem;
            padding: 6px 12px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 20px;
            color: #DCE7F2;
            transition: all var(--transition);
        }
        .footer-tags a:hover {
            background: var(--color-accent);
            color: #1B2A3D;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            text-align: center;
        }
        .footer-bottom .container-wide {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            padding-bottom: 0;
        }
        .footer-bottom p {
            margin: 0;
            font-size: 0.82rem;
            color: #8A97A8;
        }
        .footer-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .footer-links a {
            font-size: 0.82rem;
            color: #B8C4D4;
        }
        .footer-links a:hover {
            color: #fff;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: 10px;
            font-size: 0.95rem;
            font-weight: 600;
            transition: all var(--transition);
            white-space: nowrap;
            justify-content: center;
        }
        .btn-primary {
            background: var(--color-primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(26, 92, 158, 0.25);
        }
        .btn-primary:hover {
            background: var(--color-primary-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(26, 92, 158, 0.35);
        }
        .btn-primary:focus-visible {
            outline: 3px solid rgba(26, 92, 158, 0.35);
            outline-offset: 2px;
        }
        .btn-secondary {
            background: #fff;
            color: var(--color-primary);
            border: 1px solid var(--color-primary);
        }
        .btn-secondary:hover {
            background: var(--color-primary-weak);
            color: var(--color-primary-hover);
            transform: translateY(-2px);
        }
        .btn-secondary:focus-visible {
            outline: 3px solid rgba(26, 92, 158, 0.35);
            outline-offset: 2px;
        }
        .btn-accent {
            background: var(--color-accent);
            color: #1B2A3D;
            box-shadow: 0 4px 14px rgba(231, 154, 59, 0.3);
        }
        .btn-accent:hover {
            background: #d98b2e;
            color: #1B2A3D;
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 0.85rem;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 500;
            background: var(--color-primary-weak);
            color: var(--color-primary);
        }
        .badge-accent {
            background: var(--color-accent-weak);
            color: #b06f1e;
        }
        .section {
            padding: var(--spacing-xl) 0;
        }
        .section-sm {
            padding: var(--spacing-lg) 0;
        }
        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 8px;
            line-height: 1.3;
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--color-text-secondary);
            margin: 0 0 var(--spacing-lg);
            max-width: 720px;
            line-height: 1.75;
        }
        .hero-chart {
            background: linear-gradient(135deg, #EDF4FB 0%, #F5F8FC 55%, #FDF0DE 100%);
            border-bottom: 1px solid var(--color-border);
            padding: var(--spacing-xl) 0;
            position: relative;
            overflow: hidden;
        }
        .hero-chart::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -80px;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(26, 92, 158, 0.08) 0%, transparent 70%);
            border-radius: 50%;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .hero-content h1 {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 16px;
            line-height: 1.3;
            letter-spacing: -0.02em;
        }
        .hero-content h1 .highlight {
            color: var(--color-primary);
        }
        .hero-content > p {
            font-size: 1.05rem;
            color: var(--color-text-secondary);
            margin: 0 0 24px;
            line-height: 1.8;
            max-width: 560px;
        }
        .hero-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .hero-trust {
            display: flex;
            gap: 24px;
            margin-top: 24px;
            flex-wrap: wrap;
        }
        .hero-trust span {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .hero-trust .dot {
            width: 6px;
            height: 6px;
            background: var(--color-accent);
            border-radius: 50%;
        }
        .hero-visual {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            padding: 24px;
            border: 1px solid var(--color-border);
        }
        .hero-visual .chart-mini-title {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 16px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-text);
        }
        .hero-visual .chart-mini-title span:last-child {
            font-size: 0.78rem;
            color: var(--color-text-light);
            font-weight: 400;
        }
        .mini-chart {
            display: flex;
            align-items: flex-end;
            gap: 8px;
            height: 120px;
            padding: 8px 0;
            border-bottom: 1px solid var(--color-border);
            margin-bottom: 16px;
        }
        .mini-chart .bar {
            flex: 1;
            background: var(--color-primary-weak);
            border-radius: 6px 6px 0 0;
            min-height: 8px;
            position: relative;
            transition: all var(--transition);
        }
        .mini-chart .bar:hover {
            background: var(--color-primary);
        }
        .mini-chart .bar.highlight {
            background: var(--color-accent);
        }
        .mini-chart .bar span {
            position: absolute;
            bottom: -20px;
            left: 50%;
            transform: translateX(-50%);
            font-size: 0.7rem;
            font-family: var(--font-mono);
            color: var(--color-text-light);
        }
        .mini-chart-labels {
            display: flex;
            gap: 8px;
            font-size: 0.75rem;
            color: var(--color-text-light);
            font-family: var(--font-mono);
        }
        .mini-chart-labels span {
            flex: 1;
            text-align: center;
        }
        .stat-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .stat-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border);
            text-align: center;
        }
        .stat-card .stat-number {
            font-size: 1.8rem;
            font-weight: 700;
            font-family: var(--font-mono);
            color: var(--color-primary);
            line-height: 1.2;
        }
        .stat-card .stat-label {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            margin-top: 4px;
        }
        .filter-bar {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border);
            padding: 24px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: flex-end;
        }
        .filter-group {
            display: flex;
            flex-direction: column;
            gap: 6px;
            min-width: 160px;
            flex: 1;
        }
        .filter-group label {
            font-size: 0.82rem;
            font-weight: 500;
            color: var(--color-text-secondary);
        }
        .filter-group select {
            padding: 10px 14px;
            border: 1px solid var(--color-border-strong);
            border-radius: var(--radius-sm);
            background: #fff;
            font-size: 0.9rem;
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%235D6B7E' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 12px center;
            transition: border-color var(--transition);
        }
        .filter-group select:focus {
            outline: none;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(26, 92, 158, 0.15);
        }
        .chart-dashboard {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 24px;
        }
        .chart-card {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border);
            padding: 24px;
            transition: all var(--transition);
        }
        .chart-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .chart-card-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 16px;
        }
        .chart-card-header h3 {
            font-size: 1.05rem;
            font-weight: 600;
            margin: 0;
            color: var(--color-text);
        }
        .chart-card-header .badge {
            font-size: 0.72rem;
        }
        .line-chart {
            position: relative;
            height: 220px;
            background: var(--color-bg);
            border-radius: var(--radius-md);
            padding: 16px;
            margin-bottom: 12px;
            display: flex;
            align-items: flex-end;
            gap: 12px;
            overflow: hidden;
        }
        .line-chart .x-axis {
            position: absolute;
            bottom: 16px;
            left: 16px;
            right: 16px;
            display: flex;
            justify-content: space-between;
            font-size: 0.72rem;
            font-family: var(--font-mono);
            color: var(--color-text-light);
        }
        .line-chart .y-axis {
            position: absolute;
            left: 16px;
            top: 16px;
            bottom: 16px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            font-size: 0.72rem;
            font-family: var(--font-mono);
            color: var(--color-text-light);
            padding-left: 8px;
        }
        .line-chart-svg {
            width: 100%;
            height: 100%;
            position: relative;
            z-index: 2;
        }
        .dot-line {
            fill: none;
            stroke: var(--color-primary);
            stroke-width: 2.5;
            stroke-linecap: round;
            stroke-linejoin: round;
        }
        .dot-line-accent {
            fill: none;
            stroke: var(--color-accent);
            stroke-width: 2;
            stroke-dasharray: 5 4;
        }
        .chart-legend {
            display: flex;
            gap: 16px;
            font-size: 0.78rem;
            color: var(--color-text-secondary);
            flex-wrap: wrap;
        }
        .chart-legend span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .legend-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--color-primary);
        }
        .legend-dot.accent {
            background: var(--color-accent);
        }
        .data-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.88rem;
        }
        .data-table th {
            background: var(--color-primary-weak);
            padding: 12px 14px;
            text-align: left;
            font-weight: 600;
            color: var(--color-text);
            white-space: nowrap;
            border-bottom: 1px solid var(--color-border);
        }
        .data-table td {
            padding: 10px 14px;
            border-bottom: 1px solid var(--color-border);
            color: var(--color-text-secondary);
            font-family: var(--font-mono);
            font-size: 0.85rem;
            white-space: nowrap;
        }
        .data-table tr:hover td {
            background: var(--color-primary-weak);
        }
        .data-table .number-ball {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: #F0E6D8;
            color: #8B3A3A;
            font-size: 0.78rem;
            font-weight: 600;
            font-family: var(--font-mono);
            margin-right: 4px;
        }
        .data-table .number-ball.blue {
            background: #E3EFFB;
            color: #1A5C9E;
        }
        .content-block {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
        }
        .content-block h2 {
            font-size: 1.35rem;
            font-weight: 700;
            margin: 0 0 16px;
            color: var(--color-text);
        }
        .content-block h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin: 24px 0 12px;
            color: var(--color-text);
        }
        .content-block p {
            margin: 0 0 16px;
            color: var(--color-text-secondary);
            line-height: 1.85;
            font-size: 0.97rem;
        }
        .content-block ul {
            margin: 0 0 16px;
            padding-left: 20px;
            color: var(--color-text-secondary);
            line-height: 1.85;
        }
        .content-block li {
            margin-bottom: 6px;
        }
        .content-image {
            border-radius: var(--radius-md);
            overflow: hidden;
            margin: 16px 0;
            box-shadow: var(--shadow-sm);
        }
        .content-image img {
            width: 100%;
            object-fit: cover;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-item summary {
            padding: 16px 20px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--color-text);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            list-style: none;
            gap: 12px;
            user-select: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary .faq-icon {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            transition: transform var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
        }
        .faq-item[open] summary .faq-icon {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            padding: 0 20px 18px;
            color: var(--color-text-secondary);
            font-size: 0.9rem;
            line-height: 1.8;
        }
        .cta-section {
            background: linear-gradient(135deg, #1A5C9E 0%, #164A7E 100%);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            color: #fff;
            text-align: center;
            box-shadow: var(--shadow-lg);
        }
        .cta-section h2 {
            font-size: 1.6rem;
            margin: 0 0 12px;
            color: #fff;
        }
        .cta-section p {
            margin: 0 0 24px;
            color: #DCE7F2;
            font-size: 1rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-actions {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .cta-section .btn-secondary {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.6);
            color: #fff;
        }
        .cta-section .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.82rem;
            color: var(--color-text-light);
            margin-bottom: 16px;
        }
        .breadcrumb a {
            color: var(--color-text-light);
        }
        .breadcrumb a:hover {
            color: var(--color-primary);
        }
        .breadcrumb .sep {
            color: var(--color-border-strong);
        }
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .chart-dashboard {
                grid-template-columns: 1fr;
            }
            .grid-2 {
                grid-template-columns: 1fr;
            }
            .main-nav > li > a {
                padding: 8px 10px;
                font-size: 0.85rem;
            }
        }
        @media (max-width: 768px) {
            .mobile-toggle {
                display: flex;
            }
            .main-nav {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 16px 24px;
                gap: 4px;
                box-shadow: var(--shadow-lg);
                border-bottom: 1px solid var(--color-border);
                display: none;
                max-height: calc(100vh - 64px);
                overflow-y: auto;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav > li > a {
                padding: 12px 16px;
                font-size: 0.95rem;
                justify-content: space-between;
            }
            .main-nav > li > a.active::after {
                display: none;
            }
            .main-nav > li > a.active {
                background: var(--color-primary);
                color: #fff;
            }
            .mega-panel {
                position: static;
                transform: none;
                min-width: 0;
                grid-template-columns: 1fr;
                padding: 12px 0;
                box-shadow: none;
                border: none;
                opacity: 1;
                visibility: visible;
                display: none;
            }
            .main-nav > li:hover .mega-panel,
            .main-nav > li > a:focus-visible + .mega-panel {
                display: block;
            }
            .stat-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .filter-bar {
                flex-direction: column;
                align-items: stretch;
            }
            .filter-group {
                min-width: 0;
            }
            .hero-content h1 {
                font-size: 1.6rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .site-footer .container-wide {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 480px) {
            .container, .container-wide {
                padding: 0 16px;
            }
            .hero-trust {
                flex-direction: column;
                gap: 8px;
            }
            .hero-content h1 {
                font-size: 1.35rem;
            }
            .hero-actions {
                flex-direction: column;
            }
            .btn {
                width: 100%;
            }
            .stat-row {
                grid-template-columns: 1fr;
            }
            .section {
                padding: var(--spacing-lg) 0;
            }
            .data-table {
                font-size: 0.75rem;
            }
            .data-table th, .data-table td {
                padding: 8px 10px;
            }
        }

/* roulang page: category3 */
:root {
            --color-primary: #1A5C9E;
            --color-primary-hover: #164A7E;
            --color-primary-weak: #EAF2FA;
            --color-accent: #E79A3B;
            --color-accent-weak: #FEF3E2;
            --color-bg: #F5F8FC;
            --color-card: #FFFFFF;
            --color-text: #1B2A3D;
            --color-text-secondary: #5D6B7E;
            --color-text-light: #8A97A8;
            --color-border: rgba(26, 42, 61, 0.08);
            --color-border-strong: rgba(26, 42, 61, 0.16);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 2px 8px rgba(26, 42, 61, 0.06);
            --shadow-md: 0 8px 24px rgba(26, 42, 61, 0.08);
            --shadow-lg: 0 16px 40px rgba(26, 42, 61, 0.12);
            --shadow-hover: 0 12px 32px rgba(26, 42, 61, 0.14);
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 64px;
            --spacing-xxl: 96px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', 'Helvetica Neue', sans-serif;
            --font-mono: 'Roboto Mono', 'Consolas', 'Courier New', monospace;
            --transition: 0.24s cubic-bezier(0.4, 0, 0.2, 1);
        }
        *,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            font-size: 16px;
            -webkit-text-size-adjust: 100%;
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        main {
            flex: 1 0 auto;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--color-primary);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 3px solid rgba(26, 92, 158, 0.35);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-wide {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: var(--spacing-xl) 0;
        }
        .section-sm {
            padding: var(--spacing-lg) 0;
        }
        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.35;
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.01em;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin-bottom: var(--spacing-md);
            max-width: 800px;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }
        /* Header */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(26, 42, 61, 0.04);
        }
        .site-header .container-wide {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 16px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--color-primary);
            white-space: nowrap;
            letter-spacing: 0.03em;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--color-primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: #fff;
        }
        .logo-icon svg {
            width: 20px;
            height: 20px;
        }
        nav.main-nav {
            position: relative;
            flex: 1;
        }
        ul.main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            flex-wrap: nowrap;
        }
        ul.main-nav>li {
            position: relative;
            list-style: none;
        }
        ul.main-nav>li>a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--color-text);
            transition: all var(--transition);
            white-space: nowrap;
            position: relative;
        }
        ul.main-nav>li>a:hover,
        ul.main-nav>li>a:focus-visible {
            background: var(--color-primary-weak);
            color: var(--color-primary);
        }
        ul.main-nav>li>a.active {
            background: var(--color-primary-weak);
            color: var(--color-primary);
            font-weight: 600;
        }
        ul.main-nav>li>a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 14px;
            right: 14px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 2px 2px 0 0;
        }
        .nav-arrow {
            display: inline-block;
            width: 10px;
            height: 10px;
            border-right: 2px solid currentColor;
            border-bottom: 2px solid currentColor;
            transform: rotate(45deg) translateY(-2px);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        ul.main-nav>li:hover .nav-arrow,
        ul.main-nav>li>a:focus-visible .nav-arrow {
            transform: rotate(225deg) translateY(-2px);
        }
        .mega-panel {
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%) translateY(8px);
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--color-border);
            padding: 24px;
            min-width: 760px;
            max-width: 900px;
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            z-index: 1001;
            transition: all var(--transition);
        }
        ul.main-nav>li:hover .mega-panel,
        ul.main-nav>li>a:focus-visible~.mega-panel {
            opacity: 1;
            visibility: visible;
            pointer-events: auto;
            transform: translateX(-50%) translateY(0);
        }
        .mega-panel-inner {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 24px;
        }
        .mega-col h4 {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-text-light);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 12px;
            padding-bottom: 8px;
            border-bottom: 1px solid var(--color-border);
        }
        .mega-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .mega-col ul a {
            display: block;
            padding: 8px 10px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            color: var(--color-text);
            transition: all var(--transition);
        }
        .mega-col ul a:hover {
            background: var(--color-primary-weak);
            color: var(--color-primary);
        }
        .mega-news-card {
            background: var(--color-primary-weak);
            border-radius: var(--radius-md);
            padding: 14px;
            margin-bottom: 8px;
        }
        .mega-news-date {
            display: block;
            font-size: 0.78rem;
            color: var(--color-text-light);
            margin-bottom: 4px;
        }
        .mega-news-title {
            font-family: var(--font-mono);
            font-size: 0.88rem;
            color: var(--color-primary);
            font-weight: 600;
        }
        .mega-tool-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 14px;
            box-shadow: var(--shadow-sm);
        }
        .mega-tool-card strong {
            display: block;
            font-size: 0.9rem;
            margin-bottom: 4px;
            color: var(--color-primary);
        }
        .mega-tool-card span {
            font-size: 0.82rem;
            color: var(--color-text-secondary);
        }
        .hamburger {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: var(--color-text);
            background: var(--color-primary-weak);
            transition: all var(--transition);
        }
        .hamburger:hover {
            background: var(--color-primary);
            color: #fff;
        }
        .hamburger svg {
            width: 20px;
            height: 20px;
        }
        /* Mobile nav toggle */
        .nav-toggle {
            display: none;
        }
        .nav-toggle:checked~ul.main-nav {
            display: flex;
        }
        /* Banner */
        .page-banner {
            background: linear-gradient(135deg, #EAF2FA 0%, #FEF3E2 45%, #FFFFFF 100%);
            padding: var(--spacing-lg) 0 var(--spacing-lg);
            border-bottom: 1px solid var(--color-border);
        }
        .page-banner .container {
            display: flex;
            align-items: center;
            gap: var(--spacing-lg);
            flex-wrap: wrap;
        }
        .page-banner-content {
            flex: 1 1 55%;
            min-width: 280px;
        }
        .page-banner-image {
            flex: 0 0 280px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border);
        }
        .page-banner-image img {
            width: 100%;
            height: 220px;
            object-fit: cover;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            margin-bottom: var(--spacing-sm);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--color-primary);
            font-weight: 500;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb .breadcrumb-sep {
            color: var(--color-text-light);
        }
        .page-banner h1 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.3;
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.01em;
        }
        .page-banner .banner-desc {
            font-size: 1.05rem;
            color: var(--color-text-secondary);
            line-height: 1.75;
            max-width: 680px;
        }
        /* Layout: two-column reading */
        .reading-layout {
            display: grid;
            grid-template-columns: 1fr 280px;
            gap: var(--spacing-lg);
            align-items: start;
        }
        .reading-content {
            min-width: 0;
        }
        .reading-sidebar {
            position: sticky;
            top: 88px;
            background: var(--color-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            padding: var(--spacing-md);
        }
        .reading-sidebar h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 12px;
            padding-bottom: 8px;
            border-bottom: 1px solid var(--color-border);
        }
        .reading-sidebar ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .reading-sidebar ul a {
            display: block;
            padding: 8px 10px;
            border-radius: var(--radius-sm);
            font-size: 0.88rem;
            color: var(--color-text);
            transition: all var(--transition);
            border-left: 3px solid transparent;
        }
        .reading-sidebar ul a:hover,
        .reading-sidebar ul a:focus-visible {
            background: var(--color-primary-weak);
            color: var(--color-primary);
            border-left-color: var(--color-primary);
        }
        .reading-sidebar .sidebar-note {
            margin-top: 16px;
            padding: 12px;
            background: var(--color-accent-weak);
            border-radius: var(--radius-md);
            font-size: 0.82rem;
            color: var(--color-text-secondary);
        }
        /* Content blocks */
        .content-block {
            background: var(--color-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            padding: var(--spacing-lg);
            margin-bottom: var(--spacing-md);
            transition: box-shadow var(--transition);
        }
        .content-block:hover {
            box-shadow: var(--shadow-md);
        }
        .content-block h2 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: var(--spacing-sm);
            line-height: 1.35;
            padding-bottom: var(--spacing-xs);
            border-bottom: 2px solid var(--color-primary-weak);
        }
        .content-block h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--color-primary);
            margin: var(--spacing-md) 0 var(--spacing-sm);
            line-height: 1.4;
        }
        .content-block p {
            font-size: 1rem;
            color: var(--color-text);
            line-height: 1.8;
            margin-bottom: var(--spacing-sm);
        }
        .content-block ul,
        .content-block ol {
            margin: var(--spacing-xs) 0 var(--spacing-sm) var(--spacing-md);
        }
        .content-block li {
            font-size: 0.98rem;
            color: var(--color-text);
            line-height: 1.75;
            margin-bottom: var(--spacing-xs);
        }
        .content-block li::marker {
            color: var(--color-primary);
            font-weight: 600;
        }
        .rule-table-wrap {
            overflow-x: auto;
            margin: var(--spacing-sm) 0 var(--spacing-md);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
        }
        .rule-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 560px;
            background: var(--color-card);
        }
        .rule-table thead th {
            background: var(--color-primary-weak);
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.9rem;
            padding: 12px 16px;
            text-align: left;
            border-bottom: 2px solid var(--color-border-strong);
            white-space: nowrap;
        }
        .rule-table tbody td {
            padding: 11px 16px;
            font-size: 0.92rem;
            color: var(--color-text);
            border-bottom: 1px solid var(--color-border);
            text-align: left;
        }
        .rule-table tbody tr:hover td {
            background: var(--color-primary-weak);
        }
        .rule-table tbody tr:last-child td {
            border-bottom: none;
        }
        .rule-table .num-cell {
            font-family: var(--font-mono);
            font-weight: 600;
            color: var(--color-primary);
        }
        .step-list {
            counter-reset: step;
            list-style: none;
            margin: var(--spacing-sm) 0;
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }
        .step-list li {
            counter-increment: step;
            display: flex;
            gap: var(--spacing-sm);
            align-items: flex-start;
            padding: var(--spacing-sm);
            background: var(--color-primary-weak);
            border-radius: var(--radius-md);
            font-size: 0.95rem;
            color: var(--color-text);
            line-height: 1.7;
            list-style: none;
        }
        .step-list li::before {
            content: counter(step);
            width: 30px;
            height: 30px;
            background: var(--color-primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
            flex-shrink: 0;
            margin-top: 2px;
        }
        .term-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-sm);
            margin: var(--spacing-sm) 0;
        }
        .term-item {
            background: var(--color-bg);
            border-radius: var(--radius-md);
            padding: var(--spacing-sm);
            border: 1px solid var(--color-border);
        }
        .term-item strong {
            display: block;
            font-size: 0.92rem;
            color: var(--color-primary);
            margin-bottom: 4px;
            font-weight: 600;
        }
        .term-item span {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            line-height: 1.65;
        }
        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, #EAF2FA 0%, #FFFFFF 60%, #FEF3E2 100%);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
            padding: var(--spacing-xl) 0;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: var(--spacing-sm);
            line-height: 1.35;
        }
        .cta-section p {
            font-size: 1rem;
            color: var(--color-text-secondary);
            max-width: 600px;
            margin: 0 auto var(--spacing-md);
            line-height: 1.7;
        }
        .cta-buttons {
            display: flex;
            gap: var(--spacing-sm);
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            letter-spacing: 0.02em;
        }
        .btn-primary {
            background: var(--color-primary);
            color: #fff;
            box-shadow: var(--shadow-sm);
        }
        .btn-primary:hover {
            background: var(--color-primary-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .btn-secondary {
            background: #fff;
            color: var(--color-primary);
            border: 1.5px solid var(--color-primary);
        }
        .btn-secondary:hover {
            background: var(--color-primary-weak);
            color: var(--color-primary-hover);
            transform: translateY(-2px);
        }
        .btn-ghost {
            color: var(--color-primary);
            font-weight: 500;
            padding: 6px 12px;
            border-radius: var(--radius-sm);
        }
        .btn-ghost:hover {
            background: var(--color-primary-weak);
            color: var(--color-primary-hover);
        }
        /* Footer */
        .site-footer {
            background: #1B2A3D;
            color: #DCE7F2;
            padding: var(--spacing-xl) 0 var(--spacing-md);
            flex-shrink: 0;
        }
        .site-footer .container-wide {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: var(--spacing-lg);
            padding-bottom: var(--spacing-lg);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-brand .logo {
            color: #fff;
            font-size: 1.3rem;
            margin-bottom: var(--spacing-sm);
        }
        .footer-brand .logo-icon {
            background: var(--color-primary);
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: #AEBBCB;
            line-height: 1.7;
            max-width: 380px;
        }
        .footer-col h4 {
            font-size: 0.88rem;
            font-weight: 600;
            color: #fff;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 12px;
        }
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .footer-col ul a {
            font-size: 0.9rem;
            color: #AEBBCB;
            transition: color var(--transition);
        }
        .footer-col ul a:hover {
            color: #fff;
        }
        .footer-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .footer-tags a {
            display: inline-block;
            padding: 5px 12px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-sm);
            font-size: 0.82rem;
            color: #DCE7F2;
            transition: all var(--transition);
        }
        .footer-tags a:hover {
            background: var(--color-primary);
            color: #fff;
        }
        .footer-bottom {
            text-align: center;
            padding-top: var(--spacing-md);
        }
        .footer-bottom p {
            font-size: 0.82rem;
            color: #8A97A8;
            margin: 4px 0;
            line-height: 1.6;
        }
        .footer-links {
            display: flex;
            justify-content: center;
            gap: var(--spacing-md);
            margin-bottom: 12px;
            flex-wrap: wrap;
        }
        .footer-links a {
            font-size: 0.85rem;
            color: #DCE7F2;
        }
        .footer-links a:hover {
            color: #fff;
            text-decoration: underline;
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .reading-layout {
                grid-template-columns: 1fr;
            }
            .reading-sidebar {
                position: static;
                top: auto;
            }
            .site-footer .container-wide {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .site-header .container-wide {
                height: 56px;
            }
            .hamburger {
                display: flex;
            }
            nav.main-nav {
                position: static;
            }
            .nav-toggle:checked~ul.main-nav {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 56px;
                left: 0;
                right: 0;
                background: #fff;
                padding: var(--spacing-sm);
                gap: 0;
                box-shadow: var(--shadow-lg);
                border-bottom: 1px solid var(--color-border);
                max-height: 75vh;
                overflow-y: auto;
            }
            ul.main-nav {
                display: none;
            }
            ul.main-nav>li {
                width: 100%;
            }
            ul.main-nav>li>a {
                padding: 10px 14px;
                font-size: 0.95rem;
                width: 100%;
                justify-content: space-between;
            }
            ul.main-nav>li>a.active::after {
                display: none;
            }
            .mega-panel {
                position: static;
                top: auto;
                left: auto;
                transform: none;
                min-width: auto;
                max-width: none;
                opacity: 1;
                visibility: visible;
                pointer-events: auto;
                box-shadow: none;
                border: none;
                padding: 0 0 0 14px;
                margin-top: 4px;
            }
            .mega-panel-inner {
                grid-template-columns: 1fr;
                gap: 8px;
            }
            .page-banner .container {
                flex-direction: column;
                align-items: flex-start;
                gap: var(--spacing-sm);
            }
            .page-banner-image {
                flex: 0 0 auto;
                width: 100%;
                max-width: 320px;
            }
            .page-banner h1 {
                font-size: 1.5rem;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .content-block {
                padding: var(--spacing-md);
            }
            .term-grid {
                grid-template-columns: 1fr;
            }
            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }
            .btn {
                width: 100%;
                justify-content: center;
                max-width: 300px;
            }
            .site-footer .container-wide {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }
        }
        @media (max-width: 520px) {
            .container,
            .container-wide {
                padding: 0 16px;
            }
            .page-banner h1 {
                font-size: 1.3rem;
            }
            .content-block h2 {
                font-size: 1.2rem;
            }
            .content-block h3 {
                font-size: 1.05rem;
            }
            .rule-table {
                min-width: 420px;
            }
            .rule-table thead th,
            .rule-table tbody td {
                padding: 8px 10px;
                font-size: 0.82rem;
            }
            .step-list li {
                flex-direction: column;
                gap: 8px;
            }
            .step-list li::before {
                width: 26px;
                height: 26px;
                font-size: 0.8rem;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #1A5C9E;
            --color-primary-hover: #164A7E;
            --color-primary-weak: #EAF2FA;
            --color-accent: #E79A3B;
            --color-accent-weak: #FEF3E2;
            --color-bg: #F5F8FC;
            --color-card: #FFFFFF;
            --color-text: #1B2A3D;
            --color-text-secondary: #5D6B7E;
            --color-text-light: #8A97A8;
            --color-border: rgba(26, 42, 61, 0.08);
            --color-border-strong: rgba(26, 42, 61, 0.16);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 2px 8px rgba(26, 42, 61, 0.06);
            --shadow-md: 0 8px 24px rgba(26, 42, 61, 0.08);
            --shadow-lg: 0 16px 40px rgba(26, 42, 61, 0.12);
            --shadow-hover: 0 12px 32px rgba(26, 42, 61, 0.14);
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 64px;
            --spacing-xxl: 96px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', 'Helvetica Neue', sans-serif;
            --font-mono: 'Roboto Mono', 'Consolas', 'Courier New', monospace;
            --transition: 0.24s cubic-bezier(0.4, 0, 0.2, 1);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            font-size: 16px;
            -webkit-text-size-adjust: 100%;
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--color-primary);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .container-wide {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header & Navigation */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(26, 42, 61, 0.04);
        }

        .site-header .container-wide {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 16px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--color-primary);
            white-space: nowrap;
            letter-spacing: 0.03em;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--color-primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: #fff;
        }
        .logo-icon svg {
            width: 20px;
            height: 20px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
        }
        .main-nav>li {
            position: relative;
        }
        .main-nav>li>a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--color-text);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .main-nav>li>a:hover,
        .main-nav>li>a:focus-visible {
            background: var(--color-primary-weak);
            color: var(--color-primary);
            outline: 3px solid rgba(26, 92, 158, 0.35);
            outline-offset: 2px;
        }
        .main-nav>li>a.active {
            background: var(--color-primary-weak);
            color: var(--color-primary);
            font-weight: 600;
            position: relative;
        }
        .main-nav>li>a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 14px;
            right: 14px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 2px 2px 0 0;
        }

        .nav-arrow {
            display: inline-block;
            width: 10px;
            height: 10px;
            border-right: 2px solid currentColor;
            border-bottom: 2px solid currentColor;
            transform: rotate(45deg) translateY(-2px);
            transition: transform var(--transition);
        }
        .main-nav>li:hover .nav-arrow,
        .main-nav>li>a:focus-visible .nav-arrow {
            transform: rotate(225deg) translateY(-2px);
        }

        .mega-panel {
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%) translateY(8px);
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--color-border);
            padding: 24px;
            width: 760px;
            display: grid;
            grid-template-columns: 1fr 1.3fr;
            gap: 24px;
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transition: all var(--transition);
            z-index: 1001;
        }
        .main-nav>li:hover .mega-panel,
        .main-nav>li>a:focus-visible~.mega-panel,
        .main-nav>li>a:focus-visible+.mega-panel {
            opacity: 1;
            visibility: visible;
            pointer-events: auto;
            transform: translateX(-50%) translateY(0);
        }

        .mega-col h4 {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 12px;
            letter-spacing: 0.04em;
        }
        .mega-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .mega-col ul a {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }
        .mega-col ul a:hover {
            background: var(--color-primary-weak);
            color: var(--color-primary);
        }

        .mega-news-card {
            background: var(--color-primary-weak);
            border-radius: var(--radius-md);
            padding: 16px;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .mega-news-date {
            font-size: 0.78rem;
            color: var(--color-text-light);
        }
        .mega-news-title {
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--color-text);
            font-family: var(--font-mono);
            letter-spacing: 0.02em;
        }

        /* Mobile Nav Toggle */
        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--color-border-strong);
            background: #fff;
            gap: 5px;
        }
        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--color-text);
            border-radius: 1px;
            transition: all var(--transition);
        }
        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* Page Hero */
        .page-hero {
            background: linear-gradient(135deg, #EAF2FA 0%, #F5F8FC 55%, #FFFFFF 100%);
            padding: 56px 0 40px;
            border-bottom: 1px solid var(--color-border);
            position: relative;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(26, 92, 158, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -180px;
            left: -100px;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(231, 154, 59, 0.1) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--color-text-light);
            margin-bottom: 16px;
        }
        .breadcrumb a {
            color: var(--color-text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--color-primary);
        }
        .breadcrumb .sep {
            color: var(--color-text-light);
        }

        .page-hero h1 {
            font-size: 2rem;
            font-weight: 700;
            line-height: 1.35;
            color: var(--color-text);
            letter-spacing: 0.02em;
            margin-bottom: 12px;
            max-width: 680px;
        }
        .page-hero .hero-sub {
            font-size: 1rem;
            color: var(--color-text-secondary);
            max-width: 680px;
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .hero-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 24px;
            border-radius: 10px;
            font-size: 0.95rem;
            font-weight: 600;
            letter-spacing: 0.01em;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .btn:focus-visible {
            outline: 3px solid rgba(26, 92, 158, 0.35);
            outline-offset: 2px;
        }
        .btn-primary {
            background: var(--color-primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(26, 92, 158, 0.25);
        }
        .btn-primary:hover {
            background: var(--color-primary-hover);
            color: #fff;
            box-shadow: 0 6px 18px rgba(26, 92, 158, 0.3);
            transform: translateY(-1px);
        }
        .btn-secondary {
            background: #fff;
            color: var(--color-primary);
            border: 1.5px solid var(--color-primary);
        }
        .btn-secondary:hover {
            background: var(--color-primary-weak);
            color: var(--color-primary-hover);
            border-color: var(--color-primary-hover);
        }
        .btn-accent {
            background: var(--color-accent);
            color: #fff;
            box-shadow: 0 4px 12px rgba(231, 154, 59, 0.25);
        }
        .btn-accent:hover {
            background: #D48A2F;
            color: #fff;
            transform: translateY(-1px);
        }

        /* Countdown Bar */
        .countdown-bar {
            background: var(--color-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            padding: 16px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 20px;
            border-left: 4px solid var(--color-accent);
        }
        .countdown-label {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-text);
        }
        .countdown-timer {
            display: flex;
            align-items: center;
            gap: 8px;
            font-family: var(--font-mono);
            font-weight: 700;
            color: var(--color-accent);
            font-size: 1.2rem;
        }
        .countdown-timer .cd-unit {
            background: var(--color-accent-weak);
            border-radius: var(--radius-sm);
            padding: 4px 12px;
            color: var(--color-accent);
        }
        .countdown-timer .cd-sep {
            color: var(--color-text-light);
            font-size: 1rem;
        }

        /* Filter Controls */
        .filter-controls {
            background: var(--color-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 20px 24px;
            margin-top: 24px;
            display: flex;
            align-items: flex-end;
            flex-wrap: wrap;
            gap: 16px;
            border: 1px solid var(--color-border);
        }
        .filter-group {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .filter-group label {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--color-text-secondary);
            letter-spacing: 0.04em;
        }
        .filter-group .lottery-btns {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }
        .lottery-btns .lottery-btn {
            padding: 7px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            background: var(--color-bg);
            color: var(--color-text-secondary);
            border: 1px solid var(--color-border);
            transition: all var(--transition);
        }
        .lottery-btns .lottery-btn:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }
        .lottery-btns .lottery-btn.active {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
            font-weight: 600;
        }
        .filter-input {
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            border: 1.5px solid var(--color-border-strong);
            background: #fff;
            font-size: 0.9rem;
            min-width: 150px;
            transition: border-color var(--transition);
        }
        .filter-input:focus {
            border-color: var(--color-primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(26, 92, 158, 0.12);
        }

        /* Section Base */
        .section {
            padding: 56px 0;
        }
        .section-alt {
            background: #fff;
        }
        .section-title {
            font-size: 1.55rem;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.35;
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }
        .section-desc {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            max-width: 760px;
            margin-bottom: 28px;
            line-height: 1.8;
        }

        /* Current Draw Display */
        .draw-display-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 24px;
            align-items: start;
        }
        .draw-main-card {
            background: var(--color-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 28px 24px;
            border: 1px solid var(--color-border);
        }
        .draw-main-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 16px;
        }
        .draw-issue {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            font-weight: 500;
        }
        .draw-date {
            font-size: 0.85rem;
            color: var(--color-text-light);
        }
        .draw-lottery-name {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-primary);
        }
        .ball-group {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            margin: 16px 0;
        }
        .ball {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            font-family: var(--font-mono);
            font-weight: 700;
            font-size: 1.05rem;
            letter-spacing: 0.03em;
            box-shadow: 0 2px 8px rgba(26, 42, 61, 0.1);
        }
        .ball-red {
            background: #E85D5D;
            color: #fff;
        }
        .ball-blue {
            background: #3B7DD8;
            color: #fff;
        }
        .ball-orange {
            background: var(--color-accent);
            color: #fff;
        }
        .ball-gray {
            background: #8A97A8;
            color: #fff;
        }
        .draw-summary {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
            gap: 12px;
            margin-top: 12px;
            padding-top: 16px;
            border-top: 1px solid var(--color-border);
        }
        .draw-summary-item {
            text-align: center;
        }
        .draw-summary-item .ds-label {
            font-size: 0.75rem;
            color: var(--color-text-light);
            letter-spacing: 0.04em;
        }
        .draw-summary-item .ds-value {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-text);
            font-family: var(--font-mono);
        }

        /* Sidebar */
        .draw-sidebar {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .sidebar-card {
            background: var(--color-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 18px;
            border: 1px solid var(--color-border);
        }
        .sidebar-card h3 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 12px;
            padding-bottom: 8px;
            border-bottom: 2px solid var(--color-primary-weak);
        }
        .sidebar-news-item {
            display: flex;
            gap: 10px;
            padding: 8px 0;
            border-bottom: 1px solid var(--color-border);
            align-items: flex-start;
        }
        .sidebar-news-item:last-child {
            border-bottom: none;
        }
        .sidebar-news-item .sn-date {
            font-size: 0.72rem;
            color: var(--color-text-light);
            white-space: nowrap;
            font-family: var(--font-mono);
        }
        .sidebar-news-item .sn-text {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            line-height: 1.5;
        }
        .sidebar-news-item .sn-text a:hover {
            color: var(--color-primary);
        }

        .sidebar-tool-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 12px;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            margin-bottom: 6px;
        }
        .sidebar-tool-item:hover {
            background: var(--color-primary-weak);
        }
        .sidebar-tool-item .tool-icon {
            width: 36px;
            height: 36px;
            background: var(--color-primary-weak);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: var(--color-primary);
        }
        .sidebar-tool-item .tool-icon svg {
            width: 18px;
            height: 18px;
        }
        .sidebar-tool-item .tool-info {
            display: flex;
            flex-direction: column;
        }
        .sidebar-tool-item .tool-name {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--color-text);
        }
        .sidebar-tool-item .tool-desc {
            font-size: 0.75rem;
            color: var(--color-text-light);
        }

        /* History Table */
        .table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            background: #fff;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.88rem;
            min-width: 720px;
        }
        .data-table th {
            background: var(--color-primary-weak);
            color: var(--color-primary);
            font-weight: 700;
            text-align: center;
            padding: 12px 14px;
            white-space: nowrap;
            letter-spacing: 0.03em;
            border-bottom: 2px solid rgba(26, 92, 158, 0.15);
        }
        .data-table td {
            padding: 11px 14px;
            text-align: center;
            border-bottom: 1px solid var(--color-border);
            color: var(--color-text);
        }
        .data-table tr:hover td {
            background: #FAFBFD;
        }
        .data-table td.issue-cell {
            font-weight: 600;
            color: var(--color-text);
        }
        .data-table .mini-ball {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            font-family: var(--font-mono);
            font-weight: 700;
            font-size: 0.8rem;
            color: #fff;
            margin: 0 2px;
            box-shadow: 0 1px 4px rgba(26, 42, 61, 0.12);
        }
        .data-table .mini-ball.red {
            background: #E85D5D;
        }
        .data-table .mini-ball.blue {
            background: #3B7DD8;
        }
        .data-table .mini-ball.orange {
            background: var(--color-accent);
        }
        .data-table .sum-cell {
            font-family: var(--font-mono);
            font-weight: 700;
            color: var(--color-primary);
        }

        /* Draw Time Table */
        .time-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 16px;
            margin-top: 20px;
        }
        .time-card {
            background: var(--color-card);
            border-radius: var(--radius-md);
            padding: 18px;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .time-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: rgba(26, 92, 158, 0.25);
        }
        .time-card .tc-name {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 6px;
        }
        .time-card .tc-schedule {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }
        .time-card .tc-badge {
            display: inline-block;
            background: var(--color-accent-weak);
            color: var(--color-accent);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 12px;
            margin-top: 8px;
        }

        /* FAQ */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--color-text);
            list-style: none;
            user-select: none;
            min-height: 44px;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--color-primary-weak);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 1.2rem;
            font-weight: 700;
            transition: transform var(--transition);
        }
        .faq-item[open] summary .faq-icon {
            transform: rotate(45deg);
        }
        .faq-item .faq-body {
            padding: 0 20px 18px;
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-hover) 60%, #0F3E6D 100%);
            border-radius: var(--radius-xl);
            padding: 48px 32px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -60px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: #fff;
        }
        .cta-section p {
            font-size: 0.95rem;
            color: #DCE7F2;
            max-width: 560px;
            margin: 0 auto 24px;
            line-height: 1.8;
        }
        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }
        .cta-actions .btn-primary {
            background: #fff;
            color: var(--color-primary);
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
        }
        .cta-actions .btn-primary:hover {
            background: var(--color-primary-weak);
            color: var(--color-primary-hover);
        }
        .cta-actions .btn-ghost-cta {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.6);
        }
        .cta-actions .btn-ghost-cta:hover {
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            border-color: #fff;
        }

        /* Footer */
        .site-footer {
            background: #192D44;
            color: #DCE7F2;
            padding: 56px 0 32px;
            margin-top: 72px;
        }
        .site-footer .container-wide {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 32px;
        }
        .footer-brand .logo {
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-brand .logo-icon {
            background: var(--color-accent);
        }
        .footer-brand p {
            font-size: 0.85rem;
            line-height: 1.8;
            color: #A8BDD4;
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul a {
            font-size: 0.85rem;
            color: #A8BDD4;
            transition: color var(--transition);
        }
        .footer-col ul a:hover {
            color: var(--color-accent);
        }
        .footer-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .footer-tags a {
            font-size: 0.78rem;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 14px;
            padding: 4px 12px;
            color: #DCE7F2;
            transition: all var(--transition);
        }
        .footer-tags a:hover {
            background: var(--color-accent);
            color: #fff;
        }
        .footer-bottom {
            margin-top: 40px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            text-align: center;
            font-size: 0.8rem;
            color: #8AA3BD;
            line-height: 1.8;
        }
        .footer-links {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 0.85rem;
        }
        .footer-links a {
            color: #A8BDD4;
        }
        .footer-links a:hover {
            color: var(--color-accent);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .main-nav {
                gap: 0;
            }
            .main-nav>li>a {
                padding: 6px 10px;
                font-size: 0.85rem;
            }
            .mega-panel {
                width: 600px;
                grid-template-columns: 1fr 1fr;
            }
            .draw-display-grid {
                grid-template-columns: 1fr 260px;
            }
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 16px 20px;
                gap: 4px;
                border-bottom: 1px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                max-height: calc(100vh - 68px);
                overflow-y: auto;
                z-index: 999;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav>li {
                position: static;
            }
            .main-nav>li>a {
                padding: 12px 14px;
                font-size: 0.95rem;
                border-radius: var(--radius-sm);
            }
            .main-nav>li>a.active::after {
                display: none;
            }
            .main-nav>li>a.active {
                background: var(--color-primary-weak);
                color: var(--color-primary);
            }
            .mega-panel {
                position: static;
                transform: none;
                width: 100%;
                display: grid;
                grid-template-columns: 1fr;
                gap: 16px;
                padding: 16px;
                box-shadow: none;
                border: none;
                background: var(--color-bg);
                border-radius: var(--radius-sm);
                opacity: 1;
                visibility: visible;
                pointer-events: auto;
                margin-top: 4px;
            }
            .main-nav>li:hover .mega-panel,
            .main-nav>li>a:focus-visible~.mega-panel,
            .main-nav>li>a:focus-visible+.mega-panel {
                transform: none;
            }

            .page-hero {
                padding: 40px 0 28px;
            }
            .page-hero h1 {
                font-size: 1.5rem;
            }
            .draw-display-grid {
                grid-template-columns: 1fr;
            }
            .draw-main-card {
                padding: 20px 16px;
            }
            .ball {
                width: 38px;
                height: 38px;
                font-size: 0.9rem;
            }
            .site-footer .container-wide {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .section {
                padding: 40px 0;
            }
            .countdown-bar {
                flex-direction: column;
                align-items: flex-start;
            }
            .filter-controls {
                flex-direction: column;
                align-items: stretch;
            }
        }

        @media (max-width: 520px) {
            .site-header .container-wide {
                height: 60px;
            }
            .logo {
                font-size: 1.1rem;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
            }
            .page-hero h1 {
                font-size: 1.3rem;
            }
            .page-hero .hero-sub {
                font-size: 0.9rem;
            }
            .btn {
                padding: 9px 18px;
                font-size: 0.88rem;
            }
            .ball {
                width: 34px;
                height: 34px;
                font-size: 0.82rem;
            }
            .draw-main-card {
                padding: 16px 12px;
            }
            .data-table {
                font-size: 0.8rem;
            }
            .site-footer .container-wide {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .site-footer {
                padding: 40px 0 24px;
            }
            .cta-section {
                padding: 32px 20px;
            }
            .cta-section h2 {
                font-size: 1.3rem;
            }
            .lottery-btns .lottery-btn {
                padding: 5px 12px;
                font-size: 0.78rem;
            }
            .container,
            .container-wide {
                padding: 0 16px;
            }
            .countdown-timer {
                font-size: 1rem;
            }
            .countdown-timer .cd-unit {
                padding: 3px 8px;
            }
        }

/* roulang page: category4 */
:root {
            --color-primary: #1A5C9E;
            --color-primary-hover: #164A7E;
            --color-primary-weak: #EAF2FA;
            --color-accent: #E79A3B;
            --color-accent-weak: #FEF3E2;
            --color-bg: #F5F8FC;
            --color-card: #FFFFFF;
            --color-text: #1B2A3D;
            --color-text-secondary: #5D6B7E;
            --color-text-light: #8A97A8;
            --color-border: rgba(26, 42, 61, 0.08);
            --color-border-strong: rgba(26, 42, 61, 0.16);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 2px 8px rgba(26, 42, 61, 0.06);
            --shadow-md: 0 8px 24px rgba(26, 42, 61, 0.08);
            --shadow-lg: 0 16px 40px rgba(26, 42, 61, 0.12);
            --shadow-hover: 0 12px 32px rgba(26, 42, 61, 0.14);
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 64px;
            --spacing-xxl: 96px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', 'Helvetica Neue', sans-serif;
            --font-mono: 'Roboto Mono', 'Consolas', 'Courier New', monospace;
            --transition: 0.24s cubic-bezier(0.4, 0, 0.2, 1);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            font-size: 16px;
            -webkit-text-size-adjust: 100%;
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--color-primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-wide {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(26, 42, 61, 0.04);
        }
        .site-header .container-wide {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 16px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--color-primary);
            white-space: nowrap;
            letter-spacing: 0.03em;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--color-primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: #fff;
        }
        .logo-icon svg {
            width: 20px;
            height: 20px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
        }
        .main-nav>li {
            position: relative;
        }
        .main-nav>li>a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--color-text);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .main-nav>li>a:hover,
        .main-nav>li>a:focus-visible {
            background: var(--color-primary-weak);
            color: var(--color-primary);
        }
        .main-nav>li>a.active {
            background: var(--color-primary-weak);
            color: var(--color-primary);
            font-weight: 600;
        }
        .main-nav>li>a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 14px;
            right: 14px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 2px 2px 0 0;
        }
        .nav-arrow {
            display: inline-block;
            width: 10px;
            height: 10px;
            border-right: 2px solid currentColor;
            border-bottom: 2px solid currentColor;
            transform: rotate(45deg) translateY(-2px);
            transition: transform var(--transition);
        }
        .main-nav>li:hover .nav-arrow,
        .main-nav>li>a:focus-visible .nav-arrow {
            transform: rotate(225deg) translateY(-2px);
        }
        .mega-panel {
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%) translateY(8px);
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--color-border);
            padding: 24px;
            min-width: 860px;
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transition: all var(--transition);
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 24px;
            z-index: 1100;
        }
        .main-nav>li:hover .mega-panel,
        .main-nav>li>a:focus-visible+.mega-panel,
        .mega-panel:hover {
            opacity: 1;
            visibility: visible;
            pointer-events: auto;
            transform: translateX(-50%) translateY(0);
        }
        .mega-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 12px;
            padding-bottom: 8px;
            border-bottom: 1px solid var(--color-border);
        }
        .mega-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .mega-col ul a {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            padding: 6px 8px;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }
        .mega-col ul a:hover {
            background: var(--color-primary-weak);
            color: var(--color-primary);
        }
        .mega-news-card {
            background: var(--color-primary-weak);
            border-radius: var(--radius-md);
            padding: 14px 16px;
            margin-bottom: 10px;
        }
        .mega-news-date {
            font-size: 0.78rem;
            color: var(--color-text-light);
            display: block;
            margin-bottom: 4px;
        }
        .mega-news-title {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text);
            font-family: var(--font-mono);
        }
        .mega-info-card {
            background: var(--color-accent-weak);
            border-radius: var(--radius-md);
            padding: 14px 16px;
            margin-bottom: 10px;
        }
        .mega-info-card .mega-info-title {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 4px;
        }
        .mega-info-card .mega-info-desc {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
        }
        .mega-tool-link {
            display: flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            padding: 10px 14px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--color-primary);
            margin-bottom: 8px;
            transition: all var(--transition);
        }
        .mega-tool-link:hover {
            background: var(--color-primary-weak);
            border-color: var(--color-primary);
        }
        .mega-tool-link svg {
            width: 16px;
            height: 16px;
            flex-shrink: 0;
        }
        .mobile-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            align-items: center;
            justify-content: center;
            background: var(--color-primary-weak);
            color: var(--color-primary);
            flex-direction: column;
            gap: 5px;
        }
        .mobile-toggle span {
            width: 20px;
            height: 2px;
            background: currentColor;
            border-radius: 2px;
            transition: all var(--transition);
        }
        .mobile-toggle.open span:nth-child(1) {
            transform: rotate(45deg) translateY(5px);
        }
        .mobile-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .mobile-toggle.open span:nth-child(3) {
            transform: rotate(-45deg) translateY(-5px);
        }
        .mobile-menu {
            display: none;
            position: absolute;
            top: 64px;
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--color-border);
            box-shadow: var(--shadow-md);
            padding: 16px 24px;
            z-index: 999;
            flex-direction: column;
            gap: 4px;
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu a {
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .mobile-menu a:hover,
        .mobile-menu a.active {
            background: var(--color-primary-weak);
            color: var(--color-primary);
        }
        .mobile-menu .mega-col {
            padding: 8px 14px;
        }
        .mobile-menu .mega-col h4 {
            font-size: 0.85rem;
            text-transform: uppercase;
            color: var(--color-text-light);
            margin-bottom: 6px;
        }
        .mobile-menu .mega-col ul {
            flex-direction: column;
            gap: 4px;
        }
        .page-hero {
            background: linear-gradient(135deg, #EAF2FA 0%, #F5F8FC 55%, #FFFFFF 100%);
            padding: 48px 0 56px;
            border-bottom: 1px solid var(--color-border);
        }
        .page-hero .container {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--color-text-light);
            margin-bottom: 8px;
        }
        .breadcrumb a {
            color: var(--color-text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--color-primary);
        }
        .breadcrumb .sep {
            color: var(--color-text-light);
        }
        .page-hero h1 {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.3;
            letter-spacing: 0.02em;
        }
        .page-hero .hero-sub {
            font-size: 1.05rem;
            color: var(--color-text-secondary);
            max-width: 720px;
            line-height: 1.7;
        }
        .hero-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: 8px;
        }
        .hero-meta .meta-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: 20px;
            padding: 6px 14px;
            font-size: 0.85rem;
            color: var(--color-text-secondary);
        }
        .hero-meta .meta-badge svg {
            width: 14px;
            height: 14px;
            color: var(--color-primary);
        }
        .news-highlight {
            padding: 48px 0;
        }
        .news-highlight .highlight-card {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border);
        }
        .highlight-card .highlight-img {
            min-height: 300px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .highlight-card .highlight-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 92, 158, 0.15), rgba(26, 42, 61, 0.05));
        }
        .highlight-card .highlight-content {
            padding: 32px;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .highlight-content .tag-row {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .tag {
            display: inline-block;
            background: var(--color-primary-weak);
            color: var(--color-primary);
            font-size: 0.78rem;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 20px;
        }
        .tag.orange {
            background: var(--color-accent-weak);
            color: #B76E1B;
        }
        .highlight-content h2 {
            font-size: 1.55rem;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.35;
        }
        .highlight-content p {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            line-height: 1.75;
        }
        .highlight-content .highlight-date {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--color-text-light);
        }
        .highlight-content .highlight-date svg {
            width: 16px;
            height: 16px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: 10px;
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition);
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--color-primary);
            color: #fff;
            border: 1px solid var(--color-primary);
        }
        .btn-primary:hover,
        .btn-primary:focus-visible {
            background: var(--color-primary-hover);
            border-color: var(--color-primary-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .btn-outline {
            background: #fff;
            color: var(--color-primary);
            border: 1px solid var(--color-primary);
        }
        .btn-outline:hover,
        .btn-outline:focus-visible {
            background: var(--color-primary-weak);
            color: var(--color-primary-hover);
            border-color: var(--color-primary-hover);
            transform: translateY(-2px);
        }
        .btn-ghost {
            background: transparent;
            color: var(--color-primary);
            border: 1px solid transparent;
            padding: 8px 16px;
        }
        .btn-ghost:hover,
        .btn-ghost:focus-visible {
            background: var(--color-primary-weak);
            color: var(--color-primary-hover);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.88rem;
            border-radius: 8px;
        }
        .btn-accent {
            background: var(--color-accent);
            color: #fff;
            border: 1px solid var(--color-accent);
        }
        .btn-accent:hover,
        .btn-accent:focus-visible {
            background: #D18B2F;
            border-color: #D18B2F;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .news-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 32px;
            padding: 48px 0;
        }
        .news-main-col {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .news-item-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 24px;
            display: grid;
            grid-template-columns: 180px 1fr;
            gap: 20px;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            align-items: start;
        }
        .news-item-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-border-strong);
            transform: translateY(-2px);
        }
        .news-item-card .news-thumb {
            width: 180px;
            height: 130px;
            border-radius: var(--radius-md);
            background-size: cover;
            background-position: center;
            flex-shrink: 0;
        }
        .news-item-card .news-body {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .news-body .tag-row {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .news-body h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--color-text);
            line-height: 1.4;
        }
        .news-body p {
            font-size: 0.92rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }
        .news-body .news-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
        }
        .news-body .news-date {
            font-size: 0.85rem;
            color: var(--color-text-light);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .news-body .news-date svg {
            width: 14px;
            height: 14px;
        }
        .news-side-col {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .side-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
        }
        .side-card h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--color-primary-weak);
        }
        .side-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .side-list-item {
            display: flex;
            gap: 12px;
            padding: 10px 8px;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            border-bottom: 1px solid var(--color-border);
        }
        .side-list-item:last-child {
            border-bottom: none;
        }
        .side-list-item:hover {
            background: var(--color-primary-weak);
        }
        .side-list-item .side-thumb {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-sm);
            background-size: cover;
            background-position: center;
            flex-shrink: 0;
        }
        .side-list-item .side-info {
            flex: 1;
            min-width: 0;
        }
        .side-list-item .side-info .side-title {
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--color-text);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .side-list-item .side-info .side-date {
            font-size: 0.8rem;
            color: var(--color-text-light);
            margin-top: 4px;
        }
        .side-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .side-tags a {
            display: inline-block;
            background: var(--color-primary-weak);
            color: var(--color-primary);
            font-size: 0.82rem;
            font-weight: 500;
            padding: 6px 14px;
            border-radius: 20px;
            transition: all var(--transition);
        }
        .side-tags a:hover {
            background: var(--color-primary);
            color: #fff;
        }
        .side-result-card {
            background: linear-gradient(135deg, #EAF2FA, #F5F8FC);
            border-radius: var(--radius-lg);
            padding: 20px;
            border: 1px solid var(--color-border);
        }
        .side-result-card .result-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 12px;
        }
        .side-result-card .result-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 8px;
            font-size: 0.88rem;
            color: var(--color-text-secondary);
        }
        .side-result-card .result-numbers {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }
        .side-result-card .ball {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            border-radius: 50%;
            font-family: var(--font-mono);
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            background: var(--color-primary);
        }
        .side-result-card .ball.blue {
            background: #4A7DC4;
        }
        .side-result-card .ball.red {
            background: #C45A5A;
        }
        .side-subscribe {
            background: linear-gradient(135deg, #1A5C9E, #164A7E);
            border-radius: var(--radius-lg);
            padding: 24px;
            color: #fff;
            text-align: center;
        }
        .side-subscribe h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: #fff;
        }
        .side-subscribe p {
            font-size: 0.88rem;
            color: #DCE7F2;
            margin-bottom: 16px;
            line-height: 1.6;
        }
        .side-subscribe input {
            width: 100%;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            font-size: 0.9rem;
            outline: none;
            transition: all var(--transition);
            margin-bottom: 12px;
        }
        .side-subscribe input::placeholder {
            color: rgba(220, 231, 242, 0.7);
        }
        .side-subscribe input:focus {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.15);
        }
        .side-subscribe .btn-white {
            background: #fff;
            color: var(--color-primary);
            border: 1px solid #fff;
            width: 100%;
            justify-content: center;
        }
        .side-subscribe .btn-white:hover {
            background: var(--color-primary-weak);
            border-color: #fff;
            color: var(--color-primary-hover);
        }
        .section-title {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 24px;
            flex-wrap: wrap;
        }
        .section-title h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.3;
        }
        .section-title .title-desc {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            max-width: 500px;
        }
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
            padding: 40px 0;
        }
        .topic-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .topic-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-border-strong);
            transform: translateY(-2px);
        }
        .topic-card .topic-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-md);
            background: var(--color-primary-weak);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
        }
        .topic-card .topic-icon svg {
            width: 22px;
            height: 22px;
        }
        .topic-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--color-text);
        }
        .topic-card p {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }
        .topic-card .topic-link {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-primary);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .topic-card .topic-link svg {
            width: 14px;
            height: 14px;
            transition: transform var(--transition);
        }
        .topic-card .topic-link:hover svg {
            transform: translateX(4px);
        }
        .data-brief {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 32px;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 24px;
        }
        .data-brief .brief-stat {
            text-align: center;
            padding: 16px;
            background: var(--color-primary-weak);
            border-radius: var(--radius-md);
        }
        .data-brief .brief-stat .stat-num {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--color-primary);
            font-family: var(--font-mono);
            line-height: 1.2;
        }
        .data-brief .brief-stat .stat-label {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            margin-top: 4px;
        }
        .faq-section {
            padding: 48px 0;
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--color-border-strong);
        }
        .faq-item summary {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-text);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            list-style: none;
            user-select: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary .faq-icon {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            transition: transform var(--transition);
            position: relative;
        }
        .faq-item summary .faq-icon::before,
        .faq-item summary .faq-icon::after {
            content: '';
            position: absolute;
            background: var(--color-primary);
            border-radius: 2px;
            transition: all var(--transition);
        }
        .faq-item summary .faq-icon::before {
            width: 14px;
            height: 2px;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
        }
        .faq-item summary .faq-icon::after {
            width: 2px;
            height: 14px;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
        }
        .faq-item[open] summary .faq-icon::after {
            transform: translate(-50%, -50%) rotate(90deg);
            opacity: 0;
        }
        .faq-item .faq-answer {
            padding: 0 24px 20px;
            color: var(--color-text-secondary);
            font-size: 0.92rem;
            line-height: 1.7;
        }
        .cta-section {
            background: linear-gradient(135deg, #1A5C9E 0%, #164A7E 50%, #0F3D60 100%);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            color: #fff;
            margin: 48px 0;
        }
        .cta-section h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            line-height: 1.35;
        }
        .cta-section p {
            color: #DCE7F2;
            font-size: 1rem;
            max-width: 560px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }
        .cta-section .cta-buttons {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .cta-section .btn-white {
            background: #fff;
            color: var(--color-primary);
            border: 1px solid #fff;
        }
        .cta-section .btn-white:hover {
            background: var(--color-primary-weak);
            border-color: #fff;
            color: var(--color-primary-hover);
            transform: translateY(-2px);
        }
        .cta-section .btn-outline-white {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.6);
        }
        .cta-section .btn-outline-white:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }
        .site-footer {
            background: #14283F;
            color: #DCE7F2;
            padding: 48px 0 24px;
            margin-top: 48px;
        }
        .site-footer .container-wide {
            display: grid;
            grid-template-columns: 1.3fr 1fr 1fr 1fr;
            gap: 32px;
        }
        .footer-brand .logo {
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 0.88rem;
            color: #A8B8C9;
            line-height: 1.7;
            max-width: 340px;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            padding-bottom: 8px;
            border-bottom: 1px solid rgba(220, 231, 242, 0.15);
        }
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul a {
            font-size: 0.88rem;
            color: #A8B8C9;
            transition: color var(--transition);
        }
        .footer-col ul a:hover {
            color: #fff;
        }
        .footer-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .footer-tags a {
            display: inline-block;
            background: rgba(255, 255, 255, 0.08);
            color: #A8B8C9;
            font-size: 0.8rem;
            padding: 5px 12px;
            border-radius: 16px;
            border: 1px solid rgba(255, 255, 255, 0.12);
            transition: all var(--transition);
        }
        .footer-tags a:hover {
            background: rgba(255, 255, 255, 0.16);
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(220, 231, 242, 0.1);
            margin-top: 32px;
            padding-top: 20px;
            text-align: center;
            font-size: 0.82rem;
            color: #8A97A8;
        }
        .footer-bottom .footer-links {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 12px;
        }
        .footer-bottom .footer-links a {
            color: #A8B8C9;
        }
        .footer-bottom .footer-links a:hover {
            color: #fff;
        }
        .footer-bottom p {
            margin-bottom: 4px;
        }
        @media (max-width: 1024px) {
            .main-nav>li>a {
                padding: 8px 10px;
                font-size: 0.85rem;
            }
            .mega-panel {
                min-width: 700px;
                left: auto;
                right: 0;
                transform: translateY(8px);
            }
            .main-nav>li:hover .mega-panel {
                transform: translateY(0);
            }
            .news-layout {
                grid-template-columns: 1fr 280px;
                gap: 24px;
            }
            .news-item-card {
                grid-template-columns: 150px 1fr;
            }
            .news-item-card .news-thumb {
                width: 150px;
                height: 110px;
            }
        }
        @media (max-width: 768px) {
            .site-header .container-wide {
                height: 56px;
            }
            .desktop-nav {
                display: none !important;
            }
            .mobile-toggle {
                display: flex;
            }
            .mobile-menu {
                top: 56px;
            }
            .page-hero {
                padding: 32px 0 40px;
            }
            .page-hero h1 {
                font-size: 1.7rem;
            }
            .page-hero .hero-sub {
                font-size: 0.95rem;
            }
            .highlight-card {
                grid-template-columns: 1fr;
            }
            .highlight-card .highlight-img {
                min-height: 200px;
            }
            .highlight-content {
                padding: 20px;
            }
            .news-layout {
                grid-template-columns: 1fr;
                padding: 32px 0;
            }
            .news-item-card {
                grid-template-columns: 1fr;
                padding: 16px;
            }
            .news-item-card .news-thumb {
                width: 100%;
                height: 180px;
            }
            .news-body h3 {
                font-size: 1.05rem;
            }
            .news-side-col {
                order: -1;
            }
            .cta-section {
                padding: 32px 20px;
            }
            .cta-section h2 {
                font-size: 1.3rem;
            }
            .site-footer .container-wide {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 520px) {
            .container,
            .container-wide {
                padding: 0 16px;
            }
            .page-hero h1 {
                font-size: 1.45rem;
            }
            .hero-meta {
                gap: 8px;
            }
            .hero-meta .meta-badge {
                font-size: 0.78rem;
                padding: 4px 10px;
            }
            .highlight-content h2 {
                font-size: 1.3rem;
            }
            .news-body p {
                font-size: 0.88rem;
            }
            .news-item-card .news-thumb {
                height: 150px;
            }
            .site-footer .container-wide {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-brand {
                grid-column: auto;
            }
            .tour-section .tour-grid {
                grid-template-columns: 1fr;
            }
        }
        .section-padding {
            padding: 48px 0;
        }
        main {
            display: block;
        }

/* roulang page: category6 */
:root {
    --color-primary: #1A5C9E;
    --color-primary-hover: #164A7E;
    --color-primary-weak: #EAF2FA;
    --color-accent: #E79A3B;
    --color-accent-weak: #FEF3E2;
    --color-bg: #F5F8FC;
    --color-card: #FFFFFF;
    --color-text: #1B2A3D;
    --color-text-secondary: #5D6B7E;
    --color-text-light: #8A97A8;
    --color-border: rgba(26, 42, 61, 0.08);
    --color-border-strong: rgba(26, 42, 61, 0.16);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --shadow-sm: 0 2px 8px rgba(26, 42, 61, 0.06);
    --shadow-md: 0 8px 24px rgba(26, 42, 61, 0.08);
    --shadow-lg: 0 16px 40px rgba(26, 42, 61, 0.12);
    --shadow-hover: 0 12px 32px rgba(26, 42, 61, 0.14);
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 40px;
    --spacing-xl: 64px;
    --spacing-xxl: 96px;
    --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', 'Helvetica Neue', sans-serif;
    --font-mono: 'Roboto Mono', 'Consolas', 'Courier New', monospace;
    --transition: 0.24s cubic-bezier(0.4, 0, 0.2, 1);
}
html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}
body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.75;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition);
}
a:hover {
    color: var(--color-primary);
}
img {
    max-width: 100%;
    height: auto;
    display: block;
}
button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
    color: inherit;
}
button {
    cursor: pointer;
    border: none;
    background: none;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}
.container-wide {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}
.site-header {
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 12px rgba(26, 42, 61, 0.04);
}
.site-header .container-wide {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    gap: 16px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.35rem;
    color: var(--color-primary);
    white-space: nowrap;
    letter-spacing: 0.03em;
}
.logo-icon {
    width: 36px;
    height: 36px;
    background: var(--color-primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: #fff;
}
.logo-icon svg {
    width: 20px;
    height: 20px;
}
.main-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    position: relative;
}
.main-nav > li {
    position: relative;
}
.main-nav > li > a {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--color-text);
    transition: all var(--transition);
    white-space: nowrap;
}
.main-nav > li > a:hover,
.main-nav > li > a:focus-visible {
    background: var(--color-primary-weak);
    color: var(--color-primary);
}
.main-nav > li > a.active {
    background: var(--color-primary-weak);
    color: var(--color-primary);
    font-weight: 600;
}
.main-nav > li > a.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 14px;
    right: 14px;
    height: 3px;
    background: var(--color-primary);
    border-radius: 2px 2px 0 0;
}
.nav-arrow {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg) translateY(-2px);
    transition: transform var(--transition);
}
.main-nav > li:hover .nav-arrow,
.main-nav > li > a:focus-visible .nav-arrow {
    transform: rotate(225deg) translateY(-2px);
}
.mega-panel {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border);
    padding: 24px;
    display: none;
    min-width: 480px;
    z-index: 1001;
}
.main-nav > li:hover .mega-panel,
.main-nav > li > a:focus-visible + .mega-panel {
    display: block;
}
.mega-panel .mega-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}
.mega-col h4 {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin: 0 0 10px;
}
.mega-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.mega-col ul li a {
    display: block;
    padding: 6px 0;
    font-size: 0.9rem;
    color: var(--color-text);
    transition: color var(--transition);
}
.mega-col ul li a:hover {
    color: var(--color-primary);
}
.mega-news-card {
    background: var(--color-primary-weak);
    border-radius: var(--radius-md);
    padding: 14px 16px;
}
.mega-news-date {
    font-size: 0.8rem;
    color: var(--color-text-light);
    display: block;
    margin-bottom: 4px;
}
.mega-news-title {
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--color-text);
    font-family: var(--font-mono);
    letter-spacing: 0.03em;
}
.mobile-toggle {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    background: #fff;
}
.mobile-toggle svg {
    width: 22px;
    height: 22px;
}
.mobile-close {
    display: none;
    position: absolute;
    top: 14px;
    right: 20px;
    width: 32px;
    height: 32px;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--color-primary-weak);
    color: var(--color-primary);
}

/* Hero section */
.page-hero {
    background: linear-gradient(135deg, #EAF2FA 0%, #F5F8FC 55%, #FFFFFF 100%);
    padding: 64px 0 56px;
    border-bottom: 1px solid var(--color-border);
}
.page-hero .container {
    display: flex;
    align-items: center;
    gap: 48px;
    flex-wrap: wrap;
}
.page-hero .hero-left {
    flex: 1 1 520px;
}
.page-hero .hero-right {
    flex: 0 1 420px;
}
.page-hero .hero-right img {
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    width: 100%;
    height: auto;
    object-fit: cover;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--color-accent-weak);
    color: #B06F1E;
    border-radius: 999px;
    padding: 6px 16px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 16px;
}
.hero-badge::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--color-accent);
    border-radius: 50%;
}
.page-hero h1 {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.3;
    margin: 0 0 16px;
}
.page-hero .lead {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin: 0 0 24px;
    max-width: 620px;
}
.hero-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 26px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all var(--transition);
    white-space: nowrap;
}
.btn-primary {
    background: var(--color-primary);
    color: #fff;
    border: 1px solid var(--color-primary);
}
.btn-primary:hover {
    background: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}
.btn-primary:focus-visible {
    outline: 3px solid rgba(26, 92, 158, 0.35);
    outline-offset: 2px;
}
.btn-outline {
    background: #fff;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
}
.btn-outline:hover {
    background: var(--color-primary-weak);
    color: var(--color-primary-hover);
    transform: translateY(-2px);
}
.btn-outline:focus-visible {
    outline: 3px solid rgba(26, 92, 158, 0.35);
    outline-offset: 2px;
}

/* Search section */
.search-section {
    padding: 48px 0;
    background: #fff;
    border-bottom: 1px solid var(--color-border);
}
.search-box-wrap {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}
.search-box-wrap h2 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-text);
    margin: 0 0 8px;
}
.search-box-wrap p {
    color: var(--color-text-secondary);
    margin: 0 0 24px;
    font-size: 0.95rem;
}
.search-form {
    display: flex;
    gap: 10px;
    max-width: 680px;
    margin: 0 auto;
    align-items: center;
}
.search-form input[type="search"] {
    flex: 1;
    padding: 14px 20px;
    border: 1px solid var(--color-border-strong);
    border-radius: 10px;
    font-size: 0.95rem;
    background: var(--color-bg);
    transition: all var(--transition);
}
.search-form input[type="search"]:focus {
    border-color: var(--color-primary);
    background: #fff;
    outline: none;
    box-shadow: 0 0 0 3px rgba(26, 92, 158, 0.12);
}
.search-form button {
    padding: 14px 28px;
    background: var(--color-primary);
    color: #fff;
    border-radius: 10px;
    font-weight: 600;
    transition: all var(--transition);
    white-space: nowrap;
}
.search-form button:hover {
    background: var(--color-primary-hover);
    transform: translateY(-2px);
}
.search-form button:focus-visible {
    outline: 3px solid rgba(26, 92, 158, 0.35);
    outline-offset: 2px;
}
.help-cat-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin-top: 28px;
}
.help-cat-nav a {
    display: inline-flex;
    align-items: center;
    padding: 8px 18px;
    border-radius: 999px;
    background: var(--color-primary-weak);
    color: var(--color-primary);
    font-size: 0.88rem;
    font-weight: 500;
    transition: all var(--transition);
    border: 1px solid transparent;
}
.help-cat-nav a:hover {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

/* FAQ section */
.faq-section {
    padding: 64px 0 72px;
    background: var(--color-bg);
}
.faq-section .section-head {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 40px;
}
.section-head h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-text);
    margin: 0 0 12px;
    line-height: 1.35;
}
.section-head p {
    color: var(--color-text-secondary);
    margin: 0;
    font-size: 0.98rem;
    line-height: 1.75;
}
.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.faq-item {
    background: var(--color-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    overflow: hidden;
}
.faq-item:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-border-strong);
}
.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 22px;
    text-align: left;
    font-weight: 600;
    font-size: 1rem;
    color: var(--color-text);
    background: transparent;
    transition: background var(--transition);
    min-height: 44px;
}
.faq-question:hover {
    background: var(--color-primary-weak);
}
.faq-question:focus-visible {
    outline: 3px solid rgba(26, 92, 158, 0.35);
    outline-offset: -2px;
}
.faq-icon {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--color-primary-weak);
    color: var(--color-primary);
    font-weight: 700;
    font-size: 1.1rem;
    transition: transform var(--transition);
}
.faq-item.open .faq-icon {
    transform: rotate(45deg);
    background: var(--color-accent-weak);
    color: #B06F1E;
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.faq-item.open .faq-answer {
    max-height: 500px;
}
.faq-answer-inner {
    padding: 0 22px 20px 58px;
    color: var(--color-text-secondary);
    font-size: 0.93rem;
    line-height: 1.85;
}

/* Help guide section */
.help-guide-section {
    padding: 64px 0;
    background: #fff;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}
.help-guide-section .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}
.guide-content h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin: 0 0 16px;
    line-height: 1.35;
}
.guide-content p {
    color: var(--color-text-secondary);
    margin: 0 0 20px;
    font-size: 0.95rem;
    line-height: 1.85;
}
.guide-steps {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.guide-steps li {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    background: var(--color-bg);
    border-radius: var(--radius-md);
    padding: 16px 18px;
    transition: all var(--transition);
}
.guide-steps li:hover {
    background: var(--color-primary-weak);
}
.step-num {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    background: var(--color-primary);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
    font-family: var(--font-mono);
}
.step-content h3 {
    font-size: 0.98rem;
    font-weight: 600;
    color: var(--color-text);
    margin: 0 0 4px;
}
.step-content p {
    font-size: 0.88rem;
    color: var(--color-text-secondary);
    margin: 0;
}
.guide-img {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}
.guide-img img {
    width: 100%;
    height: auto;
    object-fit: cover;
}

/* Data timing section */
.timing-section {
    padding: 56px 0;
    background: var(--color-bg);
}
.timing-section .container {
    max-width: 900px;
}
.timing-section h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    text-align: center;
    margin: 0 0 28px;
}
.timing-table-wrap {
    background: var(--color-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    border: 1px solid var(--color-border);
}
.timing-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.92rem;
}
.timing-table th {
    background: var(--color-primary-weak);
    color: var(--color-text);
    font-weight: 600;
    padding: 14px 18px;
    text-align: left;
    border-bottom: 2px solid var(--color-border-strong);
    font-size: 0.88rem;
}
.timing-table td {
    padding: 14px 18px;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text-secondary);
}
.timing-table tr:last-child td {
    border-bottom: none;
}
.timing-table tr:hover td {
    background: var(--color-bg);
}
.timing-table .mono {
    font-family: var(--font-mono);
    font-size: 0.88rem;
    color: var(--color-text);
}

/* Resources section */
.resources-section {
    padding: 64px 0;
    background: #fff;
    border-top: 1px solid var(--color-border);
}
.resources-section h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    text-align: center;
    margin: 0 0 36px;
}
.resource-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.resource-card {
    background: var(--color-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    padding: 24px;
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}
.resource-card:hover {
    box-shadow: var(--shadow-hover);
    border-color: var(--color-border-strong);
    transform: translateY(-4px);
}
.resource-card .res-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--color-primary-weak);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px;
}
.resource-card .res-icon svg {
    width: 22px;
    height: 22px;
}
.resource-card h3 {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-text);
    margin: 0 0 8px;
}
.resource-card p {
    font-size: 0.89rem;
    color: var(--color-text-secondary);
    margin: 0 0 16px;
    line-height: 1.75;
    flex: 1;
}
.resource-card a {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-primary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.resource-card a:hover {
    color: var(--color-primary-hover);
}

/* CTA section */
.cta-section {
    padding: 64px 0;
    background: linear-gradient(135deg, #EAF2FA 0%, #F5F8FC 60%, #FFFFFF 100%);
    text-align: center;
}
.cta-section .cta-inner {
    max-width: 680px;
    margin: 0 auto;
}
.cta-section h2 {
    font-size: 1.65rem;
    font-weight: 700;
    color: var(--color-text);
    margin: 0 0 12px;
}
.cta-section p {
    color: var(--color-text-secondary);
    margin: 0 0 28px;
    font-size: 1rem;
}
.cta-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Footer */
.site-footer {
    background: #1B2A3D;
    color: #DCE7F2;
    padding: 48px 0 24px;
    border-top: 1px solid rgba(255,255,255,0.06);
}
.site-footer .container-wide {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
}
.footer-brand .logo {
    color: #fff;
    margin-bottom: 12px;
}
.footer-brand .logo .logo-icon {
    background: var(--color-primary);
}
.footer-brand p {
    font-size: 0.88rem;
    line-height: 1.75;
    color: #B8C4D0;
    margin: 0;
    max-width: 340px;
}
.footer-col h4 {
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: #8FA3B8;
    margin: 0 0 14px;
}
.footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.footer-col ul li {
    margin-bottom: 8px;
}
.footer-col ul li a {
    font-size: 0.9rem;
    color: #DCE7F2;
    transition: color var(--transition);
}
.footer-col ul li a:hover {
    color: var(--color-accent);
}
.footer-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.footer-tags a {
    font-size: 0.82rem;
    padding: 6px 14px;
    border-radius: 999px;
    background: rgba(255,255,255,0.06);
    color: #DCE7F2;
    border: 1px solid rgba(255,255,255,0.1);
    transition: all var(--transition);
}
.footer-tags a:hover {
    background: rgba(255,255,255,0.12);
    color: #fff;
    border-color: rgba(255,255,255,0.25);
}
.footer-bottom {
    margin-top: 36px;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.08);
    text-align: center;
    font-size: 0.82rem;
    color: #8FA3B8;
}
.footer-bottom p {
    margin: 4px 0;
}
.footer-links {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 10px;
}
.footer-links a {
    color: #DCE7F2;
    font-size: 0.88rem;
}
.footer-links a:hover {
    color: var(--color-accent);
}

/* Responsive */
@media (max-width: 1024px) {
    .main-nav > li > a {
        padding: 6px 10px;
        font-size: 0.85rem;
    }
    .mega-panel {
        min-width: 380px;
    }
    .resource-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .help-guide-section .container {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}
@media (max-width: 768px) {
    .site-header .container-wide {
        height: 56px;
    }
    .main-nav {
        display: none;
        position: absolute;
        top: 56px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 16px 24px;
        box-shadow: var(--shadow-lg);
        border-bottom: 1px solid var(--color-border);
        gap: 4px;
        max-height: 80vh;
        overflow-y: auto;
    }
    .main-nav.open {
        display: flex;
    }
    .main-nav > li > a {
        width: 100%;
        padding: 12px 14px;
        font-size: 0.95rem;
    }
    .main-nav > li > a.active::after {
        display: none;
    }
    .mega-panel {
        position: static;
        transform: none;
        min-width: 0;
        box-shadow: none;
        border: none;
        padding: 12px 0 12px 20px;
    }
    .main-nav > li:hover .mega-panel,
    .main-nav > li > a:focus-visible + .mega-panel {
        display: block;
    }
    .mega-panel .mega-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    .mobile-toggle {
        display: flex;
    }
    .mobile-close {
        display: flex;
    }
    .page-hero {
        padding: 40px 0 40px;
    }
    .page-hero .container {
        flex-direction: column;
        gap: 28px;
    }
    .page-hero h1 {
        font-size: 1.7rem;
    }
    .page-hero .hero-right {
        flex: 1 1 100%;
    }
    .search-form {
        flex-direction: column;
        gap: 12px;
    }
    .search-form input[type="search"] {
        width: 100%;
    }
    .search-form button {
        width: 100%;
    }
    .faq-section {
        padding: 48px 0 56px;
    }
    .section-head h2 {
        font-size: 1.4rem;
    }
    .resource-grid {
        grid-template-columns: 1fr;
    }
    .site-footer .container-wide {
        grid-template-columns: 1fr 1fr;
        gap: 28px;
    }
    .footer-brand {
        grid-column: 1 / -1;
    }
    .timing-table-wrap {
        overflow-x: auto;
    }
    .timing-table {
        min-width: 560px;
    }
}
@media (max-width: 520px) {
    .container, .container-wide {
        padding: 0 16px;
    }
    .page-hero {
        padding: 32px 0 36px;
    }
    .page-hero h1 {
        font-size: 1.45rem;
    }
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    .hero-actions .btn {
        width: 100%;
    }
    .faq-question {
        padding: 15px 16px;
        font-size: 0.92rem;
    }
    .faq-answer-inner {
        padding: 0 16px 16px 16px;
        font-size: 0.88rem;
    }
    .site-footer .container-wide {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .footer-brand {
        grid-column: auto;
    }
    .cta-section h2 {
        font-size: 1.35rem;
    }
    .cta-actions {
        flex-direction: column;
        width: 100%;
    }
    .cta-actions .btn {
        width: 100%;
    }
    .help-cat-nav {
        gap: 8px;
    }
    .help-cat-nav a {
        padding: 6px 14px;
        font-size: 0.82rem;
    }
}

/* roulang page: category5 */
:root {
  --color-primary: #1A5C9E;
  --color-primary-hover: #164A7E;
  --color-primary-weak: #EAF2FA;
  --color-accent: #E79A3B;
  --color-accent-weak: #FEF3E2;
  --color-bg: #F5F8FC;
  --color-card: #FFFFFF;
  --color-text: #1B2A3D;
  --color-text-secondary: #5D6B7E;
  --color-text-light: #8A97A8;
  --color-border: rgba(26, 42, 61, 0.08);
  --color-border-strong: rgba(26, 42, 61, 0.16);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --shadow-sm: 0 2px 8px rgba(26, 42, 61, 0.06);
  --shadow-md: 0 8px 24px rgba(26, 42, 61, 0.08);
  --shadow-lg: 0 16px 40px rgba(26, 42, 61, 0.12);
  --shadow-hover: 0 12px 32px rgba(26, 42, 61, 0.14);
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 40px;
  --spacing-xl: 64px;
  --spacing-xxl: 96px;
  --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', 'Helvetica Neue', sans-serif;
  --font-mono: 'Roboto Mono', 'Consolas', 'Courier New', monospace;
  --transition: 0.24s cubic-bezier(0.4, 0, 0.2, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition), background-color var(--transition), border-color var(--transition), box-shadow var(--transition);
}

a:hover {
  color: var(--color-primary);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

button,
input,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.container-wide {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 12px rgba(26, 42, 61, 0.04);
}

.site-header .container-wide {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--color-primary);
  white-space: nowrap;
  letter-spacing: 0.03em;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: var(--color-primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: #fff;
}

.logo-icon svg {
  width: 20px;
  height: 20px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.main-nav>li {
  position: relative;
}

.main-nav>li>a {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-text);
  transition: all var(--transition);
  white-space: nowrap;
}

.main-nav>li>a:hover,
.main-nav>li>a:focus-visible {
  background: var(--color-primary-weak);
  color: var(--color-primary);
}

.main-nav>li>a.active {
  background: var(--color-primary-weak);
  color: var(--color-primary);
  font-weight: 600;
}

.main-nav>li>a.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 14px;
  right: 14px;
  height: 3px;
  background: var(--color-primary);
  border-radius: 2px 2px 0 0;
}

.nav-arrow {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  transition: transform var(--transition);
}

.main-nav>li:hover .nav-arrow,
.main-nav>li>a:focus-visible .nav-arrow {
  transform: rotate(225deg) translateY(-2px);
}

/* Mega Menu */
.mega-panel {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
  padding: 24px;
  display: grid;
  grid-template-columns: 1fr 1.2fr 1fr;
  gap: 20px;
  width: 880px;
  max-width: 90vw;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: all var(--transition);
  z-index: 1001;
}

.main-nav>li:hover .mega-panel,
.main-nav>li>a:focus-visible~.mega-panel,
.main-nav>li>a:focus-visible+.mega-panel {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.mega-panel .mega-col h4 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: 12px;
  letter-spacing: 0.02em;
}

.mega-panel .mega-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mega-panel .mega-col ul li a {
  font-size: 0.9rem;
  color: var(--color-text);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  display: inline-block;
}

.mega-panel .mega-col ul li a:hover {
  background: var(--color-primary-weak);
  color: var(--color-primary);
}

.mega-news-card {
  background: var(--color-bg);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  margin-top: 8px;
}

.mega-news-date {
  font-size: 0.78rem;
  color: var(--color-text-light);
  display: block;
  margin-bottom: 6px;
}

.mega-news-title {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-text);
  word-break: break-all;
}

.mega-tool-card {
  background: linear-gradient(135deg, var(--color-primary-weak), #fff);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
  transition: all var(--transition);
}

.mega-tool-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.mega-tool-icon {
  width: 36px;
  height: 36px;
  background: var(--color-primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: #fff;
}

.mega-tool-icon svg {
  width: 18px;
  height: 18px;
}

.mega-tool-info {
  flex: 1;
}

.mega-tool-info strong {
  font-size: 0.88rem;
  color: var(--color-text);
  display: block;
}

.mega-tool-info span {
  font-size: 0.78rem;
  color: var(--color-text-light);
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition);
}

.nav-toggle:hover {
  background: var(--color-primary-weak);
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition);
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 24px;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: all var(--transition);
  white-space: nowrap;
  letter-spacing: 0.02em;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border: 2px solid var(--color-primary);
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  color: #fff;
  box-shadow: 0 6px 16px rgba(26, 92, 158, 0.25);
  transform: translateY(-1px);
}

.btn-primary:focus-visible {
  outline: 3px solid rgba(26, 92, 158, 0.35);
  outline-offset: 2px;
}

.btn-secondary {
  background: #fff;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
  background: var(--color-primary-weak);
  border-color: var(--color-primary-hover);
  color: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(26, 92, 158, 0.15);
}

.btn-secondary:focus-visible {
  outline: 3px solid rgba(26, 92, 158, 0.3);
  outline-offset: 2px;
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border-strong);
  padding: 8px 16px;
  font-size: 0.85rem;
}

.btn-ghost:hover {
  background: var(--color-bg);
  color: var(--color-primary);
  border-color: var(--color-primary);
  transform: translateY(-1px);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.85rem;
}

/* Hero / Page Header */
.page-hero {
  background: linear-gradient(135deg, #EAF2FA 0%, #F5F8FC 45%, #FFFFFF 100%);
  padding: var(--spacing-xl) 0 var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}

.page-hero-content {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.page-hero-text {
  flex: 1 1 55%;
  min-width: 300px;
}

.page-hero-text h1 {
  font-size: 2rem;
  line-height: 1.35;
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.page-hero-text h1 .highlight {
  color: var(--color-primary);
}

.page-hero-text .subtitle {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--spacing-md);
  max-width: 600px;
}

.page-hero-actions {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  margin-top: var(--spacing-sm);
}

.page-hero-visual {
  flex: 1 1 40%;
  min-width: 280px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-stat-panel {
  background: var(--color-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-md);
  width: 100%;
  max-width: 420px;
  border: 1px solid var(--color-border);
}

.hero-stat-panel .panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-sm);
  padding-bottom: var(--spacing-xs);
  border-bottom: 1px solid var(--color-border);
}

.hero-stat-panel .panel-header h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
}

.hero-stat-panel .panel-header .badge {
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--color-primary-weak);
  color: var(--color-primary);
  font-weight: 500;
}

.hero-stat-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
}

.hero-stat-row:last-child {
  border-bottom: none;
}

.hero-stat-row .stat-label {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
}

.hero-stat-row .stat-value {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: 0.05em;
}

.hero-stat-row .stat-value.hot {
  color: var(--color-accent);
}

.hero-stat-row .stat-value.cool {
  color: var(--color-primary);
}

/* Badge & Tag */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.78rem;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--color-primary-weak);
  color: var(--color-primary);
}

.badge-accent {
  background: var(--color-accent-weak);
  color: #B87A1A;
}

.badge-neutral {
  background: #F0F3F7;
  color: var(--color-text-secondary);
}

/* Section Titles */
.section-header {
  margin-bottom: var(--spacing-lg);
  max-width: 800px;
}

.section-header .section-tag {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-primary-weak);
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: var(--spacing-xs);
  letter-spacing: 0.05em;
}

.section-header h2 {
  font-size: 1.5rem;
  line-height: 1.4;
  color: var(--color-text);
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
}

.section-header p {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
}

/* Stats Cards */
.stat-cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

.stat-card {
  background: var(--color-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  padding: var(--spacing-md);
  transition: all var(--transition);
  text-align: center;
}

.stat-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
  border-color: var(--color-primary);
}

.stat-card .stat-icon {
  width: 44px;
  height: 44px;
  margin: 0 auto var(--spacing-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  font-size: 1.4rem;
  font-weight: 700;
}

.stat-card .stat-icon.blue {
  background: var(--color-primary-weak);
  color: var(--color-primary);
}

.stat-card .stat-icon.orange {
  background: var(--color-accent-weak);
  color: var(--color-accent);
}

.stat-card .stat-icon.green {
  background: #E8F5E9;
  color: #2E7D32;
}

.stat-card .stat-icon.purple {
  background: #F3E8FF;
  color: #7B1FA2;
}

.stat-card .stat-number {
  font-family: var(--font-mono);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.04em;
  display: block;
  margin-bottom: 4px;
}

.stat-card .stat-label {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
}

.stat-card .stat-desc {
  font-size: 0.78rem;
  color: var(--color-text-light);
  margin-top: 8px;
  line-height: 1.5;
}

/* Table */
.data-table-wrapper {
  overflow-x: auto;
  background: var(--color-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  padding: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  min-width: 600px;
}

.data-table thead th {
  background: var(--color-bg);
  color: var(--color-text-secondary);
  font-weight: 600;
  font-size: 0.82rem;
  text-align: center;
  padding: 12px 10px;
  border-bottom: 2px solid var(--color-border-strong);
  white-space: nowrap;
  letter-spacing: 0.03em;
}

.data-table tbody td {
  padding: 10px 8px;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  letter-spacing: 0.04em;
  color: var(--color-text);
}

.data-table tbody tr:last-child td {
  border-bottom: none;
}

.data-table tbody tr:hover {
  background: var(--color-primary-weak);
}

.data-table .cell-label {
  font-family: var(--font-sans);
  font-weight: 600;
  color: var(--color-text);
  font-size: 0.85rem;
}

.data-table .hot-cell {
  color: #E67E22;
  font-weight: 700;
}

.data-table .cool-cell {
  color: var(--color-primary);
  font-weight: 600;
}

.data-table .ball-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.85rem;
  background: var(--color-primary-weak);
  color: var(--color-primary);
}

.data-table .ball-num.hot {
  background: var(--color-accent-weak);
  color: #B87A1A;
}

/* Chart Placeholder */
.chart-card {
  background: var(--color-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.chart-card .chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-sm);
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.chart-card .chart-header h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text);
}

.chart-card .chart-header .chart-controls {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.chart-card .chart-header .chart-controls select {
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-strong);
  background: #fff;
  font-size: 0.82rem;
  color: var(--color-text);
  cursor: pointer;
}

.chart-card .chart-header .chart-controls select:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
}

.chart-placeholder {
  width: 100%;
  height: 280px;
  background: linear-gradient(135deg, var(--color-primary-weak) 0%, #FFFFFF 40%, #F5F8FC 100%);
  border-radius: var(--radius-md);
  border: 1px dashed var(--color-border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  margin-bottom: var(--spacing-sm);
}

.chart-placeholder img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.chart-placeholder .chart-overlay {
  position: absolute;
  bottom: 16px;
  left: 16px;
  right: 16px;
  background: rgba(255, 255, 255, 0.92);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow-sm);
}

.chart-placeholder .chart-overlay .mini-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.chart-placeholder .chart-overlay .mini-dot.red {
  background: #E74C3C;
}

.chart-placeholder .chart-overlay .mini-dot.blue {
  background: var(--color-primary);
}

.chart-placeholder .chart-overlay span {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
}

/* Distribution Analysis */
.distribution-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.distribution-card {
  background: var(--color-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  padding: var(--spacing-md);
  transition: all var(--transition);
}

.distribution-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

.distribution-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
  display: flex;
  align-items: center;
  gap: 8px;
}

.distribution-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.distribution-bar .bar-label {
  font-size: 0.82rem;
  color: var(--color-text-secondary);
  width: 70px;
  flex-shrink: 0;
  text-align: right;
}

.distribution-bar .bar-track {
  flex: 1;
  height: 18px;
  background: var(--color-bg);
  border-radius: 999px;
  overflow: hidden;
}

.distribution-bar .bar-fill {
  height: 100%;
  border-radius: 999px;
  transition: width 0.6s ease;
}

.distribution-bar .bar-fill.blue {
  background: var(--color-primary);
}

.distribution-bar .bar-fill.orange {
  background: var(--color-accent);
}

.distribution-bar .bar-fill.green {
  background: #4CAF50;
}

.distribution-bar .bar-fill.purple {
  background: #9C27B0;
}

.distribution-bar .bar-value {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text);
  width: 50px;
  flex-shrink: 0;
}

/* Info Section */
.info-section {
  background: var(--color-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  padding: var(--spacing-lg);
  margin-top: var(--spacing-md);
}

.info-section h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
}

.info-section p {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.9;
  margin-bottom: var(--spacing-sm);
}

.info-section p:last-of-type {
  margin-bottom: 0;
}

.info-section .info-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-sm);
}

.info-section .info-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--color-text);
  background: var(--color-bg);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
}

.info-section .info-list li::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  flex-shrink: 0;
}

/* FAQ */
.faq-section {
  margin-top: var(--spacing-lg);
}

.faq-item {
  background: var(--color-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  margin-bottom: var(--spacing-xs);
  transition: all var(--transition);
  overflow: hidden;
}

.faq-item:hover {
  box-shadow: var(--shadow-sm);
  border-color: var(--color-border-strong);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-sm);
  padding: 16px 20px;
  cursor: pointer;
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--color-text);
  list-style: none;
  min-height: 44px;
  user-select: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary .faq-icon {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-primary-weak);
  color: var(--color-primary);
  font-size: 1.1rem;
  font-weight: 700;
  transition: transform var(--transition);
}

.faq-item[open] summary .faq-icon {
  transform: rotate(45deg);
  background: var(--color-accent-weak);
  color: #B87A1A;
}

.faq-item .faq-answer {
  padding: 0 20px 18px 20px;
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  line-height: 1.85;
}

.faq-item[open] summary {
  background: var(--color-primary-weak);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

/* CTA */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-hover) 100%);
  border-radius: var(--radius-xl);
  padding: var(--spacing-lg) var(--spacing-md);
  margin: var(--spacing-xl) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  pointer-events: none;
}

.cta-section::after {
  content: '';
  position: absolute;
  bottom: -40%;
  left: -5%;
  width: 250px;
  height: 250px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  pointer-events: none;
}

.cta-section h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: var(--spacing-sm);
  position: relative;
  z-index: 1;
}

.cta-section p {
  font-size: 0.98rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: var(--spacing-md);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
  z-index: 1;
  line-height: 1.8;
}

.cta-section .cta-actions {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

.cta-section .btn-primary {
  background: #fff;
  color: var(--color-primary);
  border-color: #fff;
}

.cta-section .btn-primary:hover {
  background: var(--color-accent-weak);
  color: #B87A1A;
  border-color: var(--color-accent);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.cta-section .btn-secondary {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.6);
}

.cta-section .btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border-color: #fff;
}

/* Footer */
.site-footer {
  background: #1A2A3D;
  color: #DCE7F2;
  padding: var(--spacing-xl) 0 var(--spacing-md);
  margin-top: auto;
}

.site-footer .container-wide {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: var(--spacing-lg);
}

.footer-brand .logo {
  color: #fff;
  margin-bottom: var(--spacing-sm);
  font-size: 1.3rem;
}

.footer-brand .logo-icon {
  background: var(--color-primary);
}

.footer-brand p {
  font-size: 0.88rem;
  color: rgba(220, 231, 242, 0.75);
  line-height: 1.8;
  max-width: 340px;
}

.footer-col h4 {
  font-size: 0.88rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: var(--spacing-sm);
  letter-spacing: 0.04em;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-col ul li a {
  font-size: 0.88rem;
  color: rgba(220, 231, 242, 0.75);
  transition: color var(--transition);
}

.footer-col ul li a:hover {
  color: #fff;
}

.footer-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-tags a {
  font-size: 0.8rem;
  color: rgba(220, 231, 242, 0.75);
  background: rgba(255, 255, 255, 0.06);
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all var(--transition);
}

.footer-tags a:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.25);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-md);
  text-align: center;
}

.footer-bottom .footer-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.footer-bottom .footer-links a {
  font-size: 0.85rem;
  color: rgba(220, 231, 242, 0.7);
  transition: color var(--transition);
}

.footer-bottom .footer-links a:hover {
  color: #fff;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: rgba(220, 231, 242, 0.55);
  margin-top: var(--spacing-xs);
  line-height: 1.6;
}

/* Responsive */
@media (max-width: 1024px) {
  .stat-cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .distribution-grid {
    grid-template-columns: 1fr 1fr;
  }

  .site-footer .container-wide {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
  }

  .main-nav {
    gap: 2px;
  }

  .main-nav>li>a {
    padding: 8px 10px;
    font-size: 0.85rem;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: var(--spacing-sm) var(--spacing-md);
    box-shadow: var(--shadow-lg);
    z-index: 999;
    max-height: calc(100vh - 64px);
    overflow-y: auto;
  }

  .main-nav.open {
    display: flex;
  }

  .main-nav>li {
    width: 100%;
  }

  .main-nav>li>a {
    padding: 12px 16px;
    font-size: 0.95rem;
    width: 100%;
    justify-content: space-between;
    border-radius: var(--radius-sm);
  }

  .main-nav>li>a.active::after {
    display: none;
  }

  .mega-panel {
    position: static;
    transform: none;
    width: 100%;
    max-width: 100%;
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    box-shadow: none;
    border: none;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    display: none;
    background: var(--color-bg);
  }

  .main-nav>li:hover .mega-panel,
  .main-nav>li>a:focus-visible~.mega-panel,
  .main-nav>li>a:focus-visible+.mega-panel {
    display: grid;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: none;
  }

  .main-nav>li:focus-within .mega-panel {
    display: grid;
  }

  .page-hero-content {
    flex-direction: column;
    align-items: flex-start;
  }

  .page-hero-text h1 {
    font-size: 1.6rem;
  }

  .page-hero-visual {
    width: 100%;
    max-width: 100%;
  }

  .hero-stat-panel {
    max-width: 100%;
  }

  .stat-cards-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xs);
  }

  .distribution-grid {
    grid-template-columns: 1fr;
  }

  .chart-placeholder {
    height: 200px;
  }

  .site-footer .container-wide {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .footer-bottom {
    text-align: center;
  }

  .section-header h2 {
    font-size: 1.3rem;
  }
}

@media (max-width: 520px) {
  .container,
  .container-wide {
    padding: 0 16px;
  }

  .page-hero {
    padding: var(--spacing-lg) 0 var(--spacing-md);
  }

  .page-hero-text h1 {
    font-size: 1.4rem;
  }

  .page-hero-text .subtitle {
    font-size: 0.92rem;
  }

  .btn {
    padding: 10px 18px;
    font-size: 0.88rem;
    width: 100%;
  }

  .page-hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .cta-section h2 {
    font-size: 1.3rem;
  }

  .cta-section .cta-actions {
    flex-direction: column;
  }

  .stat-cards-grid {
    grid-template-columns: 1fr;
  }

  .stat-card .stat-number {
    font-size: 1.5rem;
  }

  .data-table {
    font-size: 0.78rem;
    min-width: 500px;
  }

  .section-header h2 {
    font-size: 1.2rem;
  }

  .faq-item summary {
    font-size: 0.9rem;
    padding: 14px 16px;
  }

  .faq-item .faq-answer {
    font-size: 0.85rem;
    padding: 0 16px 14px 16px;
  }

  .site-footer {
    padding: var(--spacing-lg) 0 var(--spacing-md);
  }

  .footer-brand p {
    font-size: 0.82rem;
  }
}

/* roulang page: category7 */
:root {
            --color-primary: #1A5C9E;
            --color-primary-hover: #164A7E;
            --color-primary-weak: #EAF2FA;
            --color-accent: #E79A3B;
            --color-accent-weak: #FEF3E2;
            --color-bg: #F5F8FC;
            --color-card: #FFFFFF;
            --color-text: #1B2A3D;
            --color-text-secondary: #5D6B7E;
            --color-text-light: #8A97A8;
            --color-border: rgba(26, 42, 61, 0.08);
            --color-border-strong: rgba(26, 42, 61, 0.16);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 2px 8px rgba(26, 42, 61, 0.06);
            --shadow-md: 0 8px 24px rgba(26, 42, 61, 0.08);
            --shadow-lg: 0 16px 40px rgba(26, 42, 61, 0.12);
            --shadow-hover: 0 12px 32px rgba(26, 42, 61, 0.14);
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 64px;
            --spacing-xxl: 96px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', 'Helvetica Neue', sans-serif;
            --font-mono: 'Roboto Mono', 'Consolas', 'Courier New', monospace;
            --transition: 0.24s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            font-size: 16px;
            -webkit-text-size-adjust: 100%;
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--color-primary);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .container-wide {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header & Navigation */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(26, 42, 61, 0.04);
        }

        .site-header .container-wide {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 16px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--color-primary);
            white-space: nowrap;
            letter-spacing: 0.03em;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--color-primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: #fff;
        }

        .logo-icon svg {
            width: 20px;
            height: 20px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
        }

        .main-nav>li {
            position: relative;
        }

        .main-nav>li>a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--color-text);
            transition: all var(--transition);
            white-space: nowrap;
        }

        .main-nav>li>a:hover,
        .main-nav>li>a:focus-visible {
            background: var(--color-primary-weak);
            color: var(--color-primary);
        }

        .main-nav>li>a.active {
            background: var(--color-primary-weak);
            color: var(--color-primary);
            font-weight: 600;
        }

        .main-nav>li>a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 14px;
            right: 14px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 2px 2px 0 0;
        }

        .nav-arrow {
            display: inline-block;
            width: 10px;
            height: 10px;
            border-right: 2px solid currentColor;
            border-bottom: 2px solid currentColor;
            transform: rotate(45deg) translateY(-2px);
            transition: transform var(--transition);
        }

        .main-nav>li:hover .nav-arrow,
        .main-nav>li>a:focus-visible .nav-arrow {
            transform: rotate(225deg) translateY(-2px);
        }

        .mega-panel {
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%) translateY(8px);
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--color-border);
            padding: 24px;
            display: none;
            min-width: 560px;
            z-index: 1001;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .main-nav>li:hover .mega-panel,
        .main-nav>li>a:focus-visible+.mega-panel,
        .main-nav>li>.mega-panel:hover {
            display: grid;
        }

        .mega-col h4 {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            margin-bottom: 12px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }

        .mega-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .mega-col ul a {
            display: block;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            color: var(--color-text);
            transition: all var(--transition);
        }

        .mega-col ul a:hover {
            background: var(--color-primary-weak);
            color: var(--color-primary);
        }

        .mega-news-card {
            background: var(--color-primary-weak);
            border-radius: var(--radius-md);
            padding: 14px 16px;
            margin-bottom: 10px;
        }

        .mega-news-date {
            font-size: 0.78rem;
            color: var(--color-text-light);
            display: block;
            margin-bottom: 4px;
        }

        .mega-news-title {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--color-primary);
            font-family: var(--font-mono);
            letter-spacing: 0.02em;
        }

        .mobile-nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            background: var(--color-primary-weak);
            color: var(--color-primary);
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 5px;
            transition: all var(--transition);
        }

        .mobile-nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: currentColor;
            border-radius: 2px;
            transition: all var(--transition);
        }

        .mobile-nav-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .mobile-nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .mobile-nav-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* Breadcrumb */
        .breadcrumb-bar {
            background: #fff;
            border-bottom: 1px solid var(--color-border);
            padding: 10px 0;
            font-size: 0.85rem;
            color: var(--color-text-secondary);
        }

        .breadcrumb-bar .container {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .breadcrumb-bar a {
            color: var(--color-primary);
        }
        .breadcrumb-bar a:hover {
            text-decoration: underline;
        }
        .breadcrumb-sep {
            color: var(--color-text-light);
        }

        /* Hero Section */
        .tools-hero {
            background: linear-gradient(135deg, #EAF2FA 0%, #F5F8FC 40%, #FFFFFF 100%);
            padding: var(--spacing-xl) 0;
            border-bottom: 1px solid var(--color-border);
        }

        .tools-hero .container {
            display: grid;
            grid-template-columns: 1fr 1.1fr;
            gap: 56px;
            align-items: center;
        }

        .hero-content h1 {
            font-size: 2.4rem;
            line-height: 1.25;
            color: var(--color-primary);
            margin-bottom: 16px;
            font-weight: 700;
            letter-spacing: 0.02em;
        }

        .hero-content .subtitle {
            font-size: 1.05rem;
            color: var(--color-text-secondary);
            margin-bottom: 24px;
            line-height: 1.7;
            max-width: 520px;
        }

        .hero-badge {
            display: inline-block;
            background: var(--color-accent-weak);
            color: #B87300;
            font-size: 0.8rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            align-items: center;
            margin-top: 8px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: 10px;
            font-size: 0.95rem;
            font-weight: 600;
            transition: all var(--transition);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--color-primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(26, 92, 158, 0.3);
        }

        .btn-primary:hover {
            background: var(--color-primary-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(26, 92, 158, 0.4);
        }

        .btn-primary:focus-visible {
            outline: 3px solid rgba(26, 92, 158, 0.35);
            outline-offset: 2px;
        }

        .btn-secondary {
            background: #fff;
            color: var(--color-primary);
            border: 2px solid var(--color-primary);
        }

        .btn-secondary:hover {
            background: var(--color-primary-weak);
            color: var(--color-primary-hover);
            transform: translateY(-2px);
        }

        .btn-outline {
            background: transparent;
            color: var(--color-text-secondary);
            border: 1px solid var(--color-border-strong);
        }

        .btn-outline:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: var(--color-primary-weak);
        }

        /* Progress Ring */
        .progress-ring-panel {
            background: #fff;
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-lg);
            padding: 36px 32px;
            display: flex;
            flex-direction: column;
            align-items: center;
            border: 1px solid var(--color-border);
        }

        .progress-ring-wrap {
            position: relative;
            width: 180px;
            height: 180px;
            margin-bottom: 24px;
        }

        .progress-ring {
            width: 100%;
            height: 100%;
            transform: rotate(-90deg);
        }

        .progress-ring-bg {
            fill: none;
            stroke: var(--color-primary-weak);
            stroke-width: 12;
        }

        .progress-ring-fill {
            fill: none;
            stroke: var(--color-primary);
            stroke-width: 12;
            stroke-linecap: round;
            stroke-dasharray: 427;
            stroke-dashoffset: 106.75;
            transition: stroke-dashoffset 1.2s ease;
        }

        .progress-ring-center {
            position: absolute;
            inset: 0;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            text-align: center;
        }

        .progress-ring-center .ratio {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--color-primary);
            font-family: var(--font-mono);
            line-height: 1.2;
        }

        .progress-ring-center .label {
            font-size: 0.8rem;
            color: var(--color-text-secondary);
        }

        .tier-preview {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            justify-content: center;
            width: 100%;
        }

        .tier-preview-item {
            background: var(--color-bg);
            border-radius: var(--radius-md);
            padding: 12px 16px;
            text-align: center;
            flex: 1 1 0;
            min-width: 100px;
            border: 1px solid var(--color-border);
            transition: all var(--transition);
        }

        .tier-preview-item:hover {
            border-color: var(--color-primary);
            background: var(--color-primary-weak);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        .tier-preview-item .tier-name {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 2px;
        }

        .tier-preview-item .tier-price {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--color-primary);
            font-family: var(--font-mono);
        }

        .tier-preview-item .tier-desc {
            font-size: 0.72rem;
            color: var(--color-text-light);
        }

        /* Section Common */
        section {
            padding: var(--spacing-xl) 0;
        }

        .section-header {
            margin-bottom: 32px;
        }

        .section-header .section-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--color-primary);
            background: var(--color-primary-weak);
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 10px;
            letter-spacing: 0.04em;
        }

        .section-header h2 {
            font-size: 1.7rem;
            line-height: 1.3;
            color: var(--color-text);
            font-weight: 700;
            margin-bottom: 10px;
        }

        .section-header p {
            font-size: 1rem;
            color: var(--color-text-secondary);
            max-width: 680px;
            line-height: 1.7;
        }

        /* Tool Cards */
        .tools-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .tool-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .tool-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--color-primary);
        }

        .tool-card .tool-icon {
            width: 48px;
            height: 48px;
            background: var(--color-primary-weak);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
        }

        .tool-card .tool-icon svg {
            width: 24px;
            height: 24px;
        }

        .tool-card h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--color-text);
        }

        .tool-card p {
            font-size: 0.86rem;
            color: var(--color-text-secondary);
            line-height: 1.65;
            flex-grow: 1;
        }

        .tool-card .tool-link {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .tool-card .tool-link:hover {
            color: var(--color-primary-hover);
        }

        /* Deep Content Section */
        .deep-content {
            background: #fff;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
            padding: var(--spacing-xl) 0;
        }

        .deep-content .content-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: start;
        }

        .deep-content h2 {
            font-size: 1.55rem;
            color: var(--color-primary);
            margin-bottom: 16px;
            font-weight: 700;
        }

        .deep-content h3 {
            font-size: 1.15rem;
            color: var(--color-text);
            margin: 20px 0 10px;
            font-weight: 600;
        }

        .deep-content p {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            line-height: 1.85;
            margin-bottom: 14px;
        }

        .deep-content img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            margin-bottom: 16px;
        }

        /* Price Section */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 16px;
        }

        .pricing-card {
            background: #fff;
            border-radius: var(--radius-xl);
            padding: 32px 28px;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            position: relative;
            display: flex;
            flex-direction: column;
        }

        .pricing-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .pricing-card.featured {
            border-color: var(--color-primary);
            box-shadow: 0 8px 32px rgba(26, 92, 158, 0.18);
            background: linear-gradient(180deg, #FAFCFF 0%, #FFFFFF 80%);
        }

        .pricing-card .plan-badge {
            position: absolute;
            top: -12px;
            right: 24px;
            background: var(--color-accent);
            color: #fff;
            font-size: 0.72rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            letter-spacing: 0.04em;
        }

        .pricing-card .plan-name {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 8px;
        }

        .pricing-card .plan-price {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-primary);
            font-family: var(--font-mono);
            margin-bottom: 4px;
            line-height: 1.2;
        }

        .pricing-card .plan-price span {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            font-family: var(--font-sans);
        }

        .pricing-card .plan-desc {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            margin-bottom: 20px;
        }

        .pricing-card ul {
            list-style: none;
            margin-bottom: 24px;
            flex-grow: 1;
        }

        .pricing-card ul li {
            padding: 8px 0;
            font-size: 0.88rem;
            color: var(--color-text);
            display: flex;
            align-items: flex-start;
            gap: 8px;
            border-bottom: 1px solid var(--color-border);
        }

        .pricing-card ul li:last-child {
            border-bottom: none;
        }

        .pricing-card ul li .check {
            color: var(--color-primary);
            font-weight: 700;
            flex-shrink: 0;
            font-size: 0.9rem;
        }

        .pricing-card ul li .uncheck {
            color: var(--color-text-light);
            font-weight: 700;
            flex-shrink: 0;
            font-size: 0.9rem;
        }

        /* Comparison Table */
        .comparison-table-wrap {
            overflow-x: auto;
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 680px;
        }

        .comparison-table th,
        .comparison-table td {
            padding: 14px 18px;
            text-align: left;
            font-size: 0.85rem;
            border-bottom: 1px solid var(--color-border);
        }

        .comparison-table th {
            background: var(--color-primary-weak);
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.82rem;
            text-transform: uppercase;
            letter-spacing: 0.03em;
            white-space: nowrap;
        }

        .comparison-table th:first-child {
            border-radius: var(--radius-lg) 0 0 0;
        }

        .comparison-table th:last-child {
            border-radius: 0 var(--radius-lg) 0 0;
        }

        .comparison-table tr:last-child td {
            border-bottom: none;
        }

        .comparison-table tr:hover td {
            background: var(--color-primary-weak);
        }

        .comparison-table td:first-child {
            font-weight: 600;
            color: var(--color-text);
            white-space: nowrap;
        }

        .comparison-table .icon-check {
            color: #0A9E5A;
            font-weight: 700;
            text-align: center;
        }
        .comparison-table .icon-x {
            color: #C0392B;
            font-weight: 700;
            text-align: center;
        }
        .comparison-table .icon-dash {
            color: var(--color-text-light);
            text-align: center;
        }

        /* Subscription Form */
        .subscribe-form {
            background: #fff;
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-md);
            padding: 36px 32px;
            border: 1px solid var(--color-border);
            max-width: 560px;
        }

        .subscribe-form label {
            display: block;
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 6px;
        }

        .subscribe-form input[type="email"],
        .subscribe-form input[type="text"] {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--color-border-strong);
            border-radius: var(--radius-md);
            font-size: 0.92rem;
            background: var(--color-bg);
            transition: all var(--transition);
            margin-bottom: 16px;
        }

        .subscribe-form input:focus {
            outline: none;
            border-color: var(--color-primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(26, 92, 158, 0.15);
        }

        .subscribe-form .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            border-color: var(--color-border-strong);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-text);
            cursor: pointer;
            width: 100%;
            text-align: left;
            gap: 12px;
            min-height: 44px;
        }

        .faq-question .faq-toggle {
            width: 28px;
            height: 28px;
            background: var(--color-primary-weak);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            flex-shrink: 0;
            transition: all var(--transition);
            font-size: 1rem;
            font-weight: 700;
        }

        .faq-item.active .faq-toggle {
            transform: rotate(180deg);
        }

        .faq-answer {
            padding: 0 20px 18px;
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            line-height: 1.75;
            display: none;
        }

        .faq-item.active .faq-answer {
            display: block;
        }

        /* CTA */
        .final-cta {
            background: linear-gradient(135deg, #EAF2FA 0%, #FEF3E2 50%, #FFFFFF 100%);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            border: 1px solid var(--color-border);
        }

        .final-cta h2 {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 12px;
        }

        .final-cta p {
            font-size: 1rem;
            color: var(--color-text-secondary);
            max-width: 560px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }

        .final-cta .cta-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* Footer */
        .site-footer {
            background: #1B2A3D;
            color: #DCE7F2;
            padding: 48px 0 24px;
            margin-top: var(--spacing-xl);
        }

        .site-footer .container-wide {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
        }

        .footer-brand .logo {
            color: #fff;
            margin-bottom: 14px;
            font-size: 1.2rem;
        }

        .footer-brand .logo-icon {
            background: var(--color-primary);
        }

        .footer-brand p {
            font-size: 0.85rem;
            color: #A0B0C2;
            line-height: 1.7;
        }

        .footer-col h4 {
            font-size: 0.85rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }

        .footer-col ul {
            list-style: none;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul a {
            font-size: 0.85rem;
            color: #A0B0C2;
            transition: color var(--transition);
        }

        .footer-col ul a:hover {
            color: #fff;
        }

        .footer-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .footer-tags a {
            font-size: 0.78rem;
            background: rgba(255, 255, 255, 0.08);
            color: #A0B0C2;
            padding: 4px 12px;
            border-radius: 20px;
            transition: all var(--transition);
        }

        .footer-tags a:hover {
            background: var(--color-primary);
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 32px;
            padding-top: 24px;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 0.78rem;
            color: #8A97A8;
            margin-bottom: 6px;
        }

        .footer-links {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
            margin-bottom: 12px;
        }

        .footer-links a {
            font-size: 0.82rem;
            color: #A0B0C2;
        }
        .footer-links a:hover {
            color: #fff;
        }

        /* Responsive */
        @media (max-width: 1100px) {
            .main-nav>li>a {
                padding: 8px 10px;
                font-size: 0.85rem;
            }
            .tools-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .pricing-grid {
                grid-template-columns: 1fr;
                max-width: 480px;
                margin-left: auto;
                margin-right: auto;
            }
            .site-footer .container-wide {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            .mobile-nav-toggle {
                display: flex;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 16px 20px;
                box-shadow: var(--shadow-lg);
                border-bottom: 1px solid var(--color-border);
                max-height: 70vh;
                overflow-y: auto;
                z-index: 999;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav>li {
                width: 100%;
            }
            .main-nav>li>a {
                width: 100%;
                justify-content: flex-start;
                padding: 12px 14px;
            }
            .main-nav>li>a.active::after {
                display: none;
            }
            .mega-panel {
                position: static;
                transform: none;
                min-width: 100%;
                box-shadow: none;
                border: 1px solid var(--color-border);
                padding: 16px;
                grid-template-columns: 1fr;
                gap: 12px;
                margin-top: 4px;
            }
            .main-nav>li:hover .mega-panel,
            .main-nav>li>a:focus-visible+.mega-panel,
            .main-nav>li>.mega-panel:hover {
                display: grid;
            }
            .tools-hero .container {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .tools-hero .container {
                padding: 0 20px;
            }
            .hero-content h1 {
                font-size: 1.7rem;
            }
            .tools-grid {
                grid-template-columns: 1fr;
            }
            .deep-content .content-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            section {
                padding: 48px 0;
            }
            .site-footer .container-wide {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .subscribe-form {
                padding: 24px 20px;
            }
            .subscribe-form .form-row {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .final-cta {
                padding: 32px 20px;
            }
            .progress-ring-wrap {
                width: 140px;
                height: 140px;
            }
            .progress-ring-center .ratio {
                font-size: 1.4rem;
            }
        }

        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 1.4rem;
            }
            .btn {
                padding: 10px 18px;
                font-size: 0.85rem;
            }
            .tier-preview {
                flex-direction: column;
            }
            .progress-ring-panel {
                padding: 24px 18px;
            }
            .section-header h2 {
                font-size: 1.35rem;
            }
            .comparison-table-wrap {
                margin: 0 -12px;
                border-radius: 0;
            }
        }