/* roulang page: index */
:root {
            --primary: #F59E0B;
            --primary-dark: #D97706;
            --accent: #7C5CFC;
            --bg: #131211;
            --bg-light: #1A1917;
            --bg-card: #201E1B;
            --text: #F5F0E8;
            --text-secondary: rgba(245, 240, 232, 0.6);
            --text-tertiary: rgba(245, 240, 232, 0.45);
            --border: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(255, 255, 255, 0.15);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.06), 0 8px 24px rgba(0, 0, 0, 0.08);
            --shadow-glow: 0 0 16px rgba(245, 158, 11, 0.35);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'PingFang SC', 'HarmonyOS Sans SC', 'MiSans', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input {
            font-family: inherit;
        }

        .container-custom {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(19, 18, 17, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            transition: box-shadow 0.3s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
        }

        .logo-icon {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: linear-gradient(135deg, #F59E0B, #EA580C);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            box-shadow: 0 2px 8px rgba(245, 158, 11, 0.3);
        }

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

        .nav-link {
            font-size: 14px;
            color: rgba(245, 240, 232, 0.7);
            font-weight: 500;
            padding: 8px 2px;
            position: relative;
            transition: color 0.2s ease;
        }

        .nav-link:hover {
            color: #fff;
        }

        .nav-link.active {
            color: var(--primary);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            background: var(--primary);
            color: #131211;
            font-weight: 600;
            font-size: 14px;
            padding: 10px 22px;
            border-radius: 8px;
            transition: all 0.2s ease;
            border: none;
        }

        .btn-primary:hover {
            background: #FBBF24;
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow);
        }

        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #fff;
            font-weight: 500;
            font-size: 14px;
            padding: 9px 20px;
            border-radius: 8px;
            transition: all 0.2s ease;
        }

        .btn-outline:hover {
            border-color: rgba(255, 255, 255, 0.4);
            background: rgba(255, 255, 255, 0.05);
        }

        .search-box {
            position: relative;
        }

        .search-box input {
            width: 180px;
            height: 40px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.1);
            padding: 0 16px 0 38px;
            font-size: 13px;
            color: #fff;
            outline: none;
            transition: all 0.2s ease;
        }

        .search-box input::placeholder {
            color: rgba(245, 240, 232, 0.45);
        }

        .search-box input:focus {
            border-color: rgba(245, 158, 11, 0.5);
            box-shadow: 0 0 0 2px rgba(245, 158, 11, 0.25);
            background: rgba(255, 255, 255, 0.1);
        }

        .search-box svg {
            position: absolute;
            left: 13px;
            top: 50%;
            transform: translateY(-50%);
            width: 16px;
            height: 16px;
            color: rgba(245, 240, 232, 0.45);
            pointer-events: none;
        }

        .hamburger {
            width: 44px;
            height: 44px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .hamburger span {
            width: 18px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            transition: all 0.3s ease;
        }

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

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

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

        .mobile-drawer {
            display: none;
            padding: 16px 20px 24px;
            background: rgba(19, 18, 17, 0.98);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .mobile-drawer.open {
            display: block;
        }

        .mobile-drawer a {
            display: block;
            padding: 14px 12px;
            font-size: 15px;
            color: rgba(245, 240, 232, 0.8);
            border-radius: 8px;
            transition: background 0.2s ease;
        }

        .mobile-drawer a:hover {
            background: rgba(255, 255, 255, 0.05);
            color: #fff;
        }

        .mobile-drawer a.active {
            color: var(--primary);
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            padding: 96px 0 88px;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(19, 18, 17, 0.95) 30%, rgba(19, 18, 17, 0.6) 100%);
        }

        .hero::after {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.15), transparent 70%);
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 1;
        }

        .hero-grid-lines {
            position: absolute;
            inset: 0;
            background-image: linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
            background-size: 48px 48px;
            pointer-events: none;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: 999px;
            background: rgba(245, 158, 11, 0.12);
            border: 1px solid rgba(245, 158, 11, 0.3);
            font-size: 13px;
            color: var(--primary);
            font-weight: 500;
        }

        .hero h1 {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.5px;
            margin: 20px 0 16px;
        }

        .hero-subtitle {
            font-size: 17px;
            color: rgba(245, 240, 232, 0.75);
            max-width: 520px;
            margin-bottom: 32px;
            line-height: 1.7;
        }

        .hero-note {
            font-size: 13px;
            color: rgba(245, 240, 232, 0.5);
            margin-top: 16px;
        }

        /* ===== 通用板块 ===== */
        .section-padding {
            padding: 96px 0;
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .section-desc {
            font-size: 15px;
            color: rgba(245, 240, 232, 0.6);
            max-width: 640px;
            line-height: 1.7;
        }

        .section-header {
            margin-bottom: 48px;
        }

        /* ===== 功能卡片 ===== */
        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .feature-card:hover {
            background: #262320;
            border-color: var(--border-hover);
            transform: translateY(-4px);
        }

        .feature-card:hover .feature-arrow {
            opacity: 1;
            transform: translateX(0);
        }

        .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: linear-gradient(135deg, #F59E0B, #7C5CFC);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }

        .feature-icon svg {
            width: 22px;
            height: 22px;
            color: #fff;
        }

        .feature-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
            color: #fff;
        }

        .feature-card p {
            font-size: 14px;
            color: rgba(245, 240, 232, 0.6);
            line-height: 1.65;
            margin-bottom: 16px;
        }

        .feature-link {
            font-size: 14px;
            color: var(--primary);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color 0.2s ease;
        }

        .feature-link:hover {
            color: #FBBF24;
        }

        .feature-arrow {
            position: absolute;
            top: 20px;
            right: 20px;
            opacity: 0;
            transform: translateX(-8px);
            transition: all 0.3s ease;
            color: var(--primary);
        }

        .feature-card-large {
            grid-column: span 2;
        }

        /* ===== 使用场景 ===== */
        .scenario-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 64px;
            align-items: center;
            margin-bottom: 96px;
        }

        .scenario-block:last-child {
            margin-bottom: 0;
        }

        .scenario-block.reverse .scenario-image {
            order: 2;
        }

        .scenario-block.reverse .scenario-text {
            order: 1;
        }

        .scenario-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            position: relative;
            box-shadow: var(--shadow-card);
        }

        .scenario-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            aspect-ratio: 4/3;
            transition: transform 0.4s ease;
        }

        .scenario-image:hover img {
            transform: scale(1.02);
        }

        .scenario-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(245, 158, 11, 0.06), transparent 50%);
            border-radius: var(--radius-lg);
            pointer-events: none;
        }

        .scenario-text h3 {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            line-height: 1.4;
        }

        .scenario-text p {
            font-size: 15px;
            color: rgba(245, 240, 232, 0.6);
            line-height: 1.75;
            margin-bottom: 20px;
        }

        .scenario-link {
            font-size: 14px;
            color: var(--primary);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all 0.2s ease;
        }

        .scenario-link:hover {
            color: #FBBF24;
            text-decoration: underline;
            text-underline-offset: 4px;
        }

        /* ===== 数据统计 ===== */
        .stat-number {
            font-size: 44px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.1;
            font-variant-numeric: tabular-nums;
            letter-spacing: -1px;
        }

        .stat-label {
            font-size: 14px;
            color: rgba(245, 240, 232, 0.6);
            margin-top: 8px;
        }

        /* ===== 用户评价 ===== */
        .testimonial-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px;
            transition: transform 0.3s ease;
        }

        .testimonial-card:hover {
            transform: translateY(-4px);
        }

        .testimonial-avatar {
            width: 44px;
            height: 44px;
            border-radius: 999px;
            background: linear-gradient(135deg, rgba(245, 158, 11, 0.4), rgba(124, 92, 252, 0.4));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            flex-shrink: 0;
        }

        .testimonial-text {
            font-size: 14px;
            color: rgba(245, 240, 232, 0.75);
            line-height: 1.7;
            margin-top: 16px;
            font-style: normal;
        }

        .stars {
            display: flex;
            gap: 2px;
            margin-top: 12px;
        }

        .stars svg {
            width: 14px;
            height: 14px;
            color: var(--primary);
            fill: var(--primary);
        }

        /* ===== 服务方案 ===== */
        .pricing-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            transition: all 0.3s ease;
            position: relative;
        }

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

        .pricing-card.featured {
            border: 1px solid rgba(245, 158, 11, 0.4);
            background: linear-gradient(180deg, rgba(245, 158, 11, 0.06), transparent);
            box-shadow: 0 0 32px rgba(245, 158, 11, 0.08);
        }

        .pricing-badge {
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--primary);
            color: #131211;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 16px;
            border-radius: 999px;
            white-space: nowrap;
        }

        .pricing-name {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .pricing-price {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 20px;
            font-variant-numeric: tabular-nums;
        }

        .pricing-price span {
            font-size: 14px;
            font-weight: 400;
            color: rgba(245, 240, 232, 0.5);
            margin-left: 2px;
        }

        .pricing-features {
            list-style: none;
            margin: 0 0 24px;
            padding: 0;
        }

        .pricing-features li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 8px 0;
            font-size: 14px;
            color: rgba(245, 240, 232, 0.7);
        }

        .pricing-features li svg {
            width: 18px;
            height: 18px;
            color: #10B981;
            flex-shrink: 0;
            margin-top: 2px;
        }

        /* ===== 新闻卡片 ===== */
        .news-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }

        .news-card:hover {
            background: rgba(255, 255, 255, 0.07);
            transform: translateY(-2px);
        }

        .news-card:hover .news-title {
            color: var(--primary);
        }

        .news-badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 6px;
            background: rgba(245, 158, 11, 0.12);
            color: var(--primary);
            font-size: 12px;
            font-weight: 500;
            border: 1px solid rgba(245, 158, 11, 0.2);
        }

        .news-title {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin: 12px 0 8px;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color 0.2s ease;
        }

        .news-summary {
            font-size: 14px;
            color: rgba(245, 240, 232, 0.55);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 16px;
            flex-grow: 1;
        }

        .news-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 14px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .news-time {
            font-size: 13px;
            color: rgba(245, 240, 232, 0.4);
        }

        .news-link {
            font-size: 13px;
            color: var(--primary);
            font-weight: 500;
            transition: color 0.2s ease;
        }

        .news-link:hover {
            color: #FBBF24;
        }

        .empty-state {
            text-align: center;
            padding: 64px 0;
            color: rgba(245, 240, 232, 0.5);
            font-size: 14px;
        }

        .empty-state svg {
            width: 40px;
            height: 40px;
            margin: 0 auto 12px;
            color: rgba(245, 240, 232, 0.2);
            display: block;
        }

        /* ===== FAQ ===== */
        .faq-item {
            border: 1px solid var(--border);
            border-radius: 12px;
            margin-bottom: 12px;
            transition: border-color 0.2s ease, background 0.2s ease;
            overflow: hidden;
            background: rgba(255, 255, 255, 0.02);
        }

        .faq-item.active {
            border-color: rgba(245, 158, 11, 0.4);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
            height: 48px;
            font-size: 15px;
            font-weight: 500;
            color: rgba(245, 240, 232, 0.85);
            background: transparent;
            border: none;
            text-align: left;
            transition: color 0.2s ease;
        }

        .faq-item.active .faq-question {
            color: var(--primary);
        }

        .faq-icon {
            width: 20px;
            height: 20px;
            color: rgba(245, 240, 232, 0.4);
            transition: transform 0.2s ease, color 0.2s ease;
            flex-shrink: 0;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.25s ease, padding 0.25s ease;
            font-size: 14px;
            color: rgba(245, 240, 232, 0.7);
            line-height: 1.7;
            padding: 0 20px;
        }

        .faq-item.active .faq-answer {
            max-height: 500px;
            padding: 0 20px 16px;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            padding: 88px 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(19, 18, 17, 0.9);
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            right: -80px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.15), transparent 70%);
            pointer-events: none;
        }

        .cta-content {
            position: relative;
            z-index: 1;
            text-align: center;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #0F0E0D;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 64px 0 24px;
        }

        .footer-title {
            font-size: 14px;
            font-weight: 600;
            color: rgba(245, 240, 232, 0.9);
            margin-bottom: 16px;
        }

        .footer-link {
            display: block;
            font-size: 14px;
            color: rgba(245, 240, 232, 0.6);
            padding: 6px 0;
            transition: color 0.2s ease;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            margin-top: 48px;
            padding-top: 24px;
            text-align: center;
            font-size: 13px;
            color: rgba(245, 240, 232, 0.4);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .hero h1 {
                font-size: 36px;
            }

            .section-padding {
                padding: 72px 0;
            }

            .section-title {
                font-size: 28px;
            }

            .scenario-block {
                grid-template-columns: 1fr;
                gap: 32px;
                margin-bottom: 64px;
            }

            .scenario-block.reverse .scenario-image {
                order: 1;
            }

            .scenario-block.reverse .scenario-text {
                order: 2;
            }

            .feature-card-large {
                grid-column: span 1;
            }
        }

        @media (max-width: 768px) {
            .hero {
                padding: 72px 0 64px;
            }

            .hero h1 {
                font-size: 32px;
            }

            .hero-subtitle {
                font-size: 15px;
            }

            .section-padding {
                padding: 56px 0;
            }

            .section-title {
                font-size: 24px;
            }

            .stat-number {
                font-size: 32px;
            }

            .pricing-card {
                padding: 24px 20px;
            }
        }

        @media (max-width: 640px) {
            .container-custom {
                padding-left: 1rem;
                padding-right: 1rem;
            }
        }

        /* 焦点可访问性 */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid rgba(245, 158, 11, 0.5);
            outline-offset: 2px;
        }

/* roulang page: category1 */
:root {
            --bg: #131211;
            --surface: rgba(255, 255, 255, 0.04);
            --surface-hover: rgba(255, 255, 255, 0.09);
            --border: rgba(255, 255, 255, 0.08);
            --border-strong: rgba(255, 255, 255, 0.15);
            --text: #F5F0E8;
            --text-muted: rgba(245, 240, 232, 0.62);
            --text-dim: rgba(245, 240, 232, 0.45);
            --primary: #F59E0B;
            --primary-hover: #FBBF24;
            --primary-soft: rgba(245, 158, 11, 0.12);
            --accent: #7C5CFC;
            --accent-soft: rgba(124, 92, 252, 0.14);
            --radius-lg: 18px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-primary: 0 0 18px rgba(245, 158, 11, 0.35);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'PingFang SC', 'HarmonyOS Sans SC', 'MiSans', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
            background: radial-gradient(ellipse at 15% 0%, rgba(60, 48, 35, 0.65) 0%, #131211 55%) fixed, #131211;
            color: var(--text);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color .2s ease;
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }

        input {
            font-family: inherit;
            background: transparent;
            border: none;
            outline: none;
        }

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

        /* 导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(19, 18, 17, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            border-radius: 9px;
            background: linear-gradient(135deg, #F59E0B 0%, #EA580C 60%, #7C5CFC 100%);
            box-shadow: 0 2px 10px rgba(245, 158, 11, 0.25);
            flex-shrink: 0;
        }

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

        .nav-link {
            position: relative;
            font-size: 14.5px;
            font-weight: 500;
            color: rgba(245, 240, 232, 0.7);
            padding: 8px 2px;
            transition: color .2s ease;
        }

        .nav-link:hover {
            color: var(--text);
        }

        .nav-link.active {
            color: var(--primary);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: -2px;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
        }

        .search-box {
            display: flex;
            align-items: center;
            gap: 8px;
            width: 200px;
            height: 38px;
            padding: 0 12px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: border-color .2s, box-shadow .2s, background .2s;
        }

        .search-box svg {
            width: 16px;
            height: 16px;
            color: rgba(245, 240, 232, 0.5);
            flex-shrink: 0;
        }

        .search-box input {
            width: 100%;
            font-size: 13px;
            color: var(--text);
        }

        .search-box input::placeholder {
            color: rgba(245, 240, 232, 0.4);
        }

        .search-box:focus-within {
            border-color: rgba(245, 158, 11, 0.5);
            box-shadow: 0 0 0 2px rgba(245, 158, 11, 0.18);
            background: rgba(255, 255, 255, 0.1);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 40px;
            padding: 0 22px;
            border-radius: 9px;
            background: var(--primary);
            color: #151210;
            font-size: 14px;
            font-weight: 600;
            transition: background .2s, transform .2s, box-shadow .2s;
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-primary);
        }

        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 40px;
            padding: 0 22px;
            border-radius: 9px;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.22);
            color: var(--text);
            font-size: 14px;
            font-weight: 500;
            transition: border-color .2s, background .2s, transform .2s;
            white-space: nowrap;
        }

        .btn-outline:hover {
            border-color: rgba(255, 255, 255, 0.45);
            background: rgba(255, 255, 255, 0.05);
            transform: translateY(-2px);
        }

        .btn-outline:active {
            transform: translateY(0);
        }

        .hamburger {
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 44px;
            height: 44px;
            align-items: center;
            border-radius: 8px;
        }

        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: transform .25s, opacity .25s;
        }

        .hamburger.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-drawer {
            display: none;
            padding: 16px 24px 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .mobile-drawer.open {
            display: block;
        }

        .mobile-link {
            display: block;
            padding: 12px 4px;
            font-size: 15px;
            font-weight: 500;
            color: rgba(245, 240, 232, 0.75);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .mobile-link:hover,
        .mobile-link.active {
            color: var(--primary);
        }

        /* Hero */
        .hero-section {
            position: relative;
            min-height: 540px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .hero-bg-img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(105deg, rgba(19, 18, 17, 0.96) 30%, rgba(19, 18, 17, 0.78) 68%, rgba(19, 18, 17, 0.55) 100%);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            padding: 90px 24px 96px;
            text-align: center;
        }

        .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 500;
            color: var(--primary);
            background: rgba(245, 158, 11, 0.1);
            border: 1px solid rgba(245, 158, 11, 0.2);
            border-radius: 999px;
            padding: 6px 16px;
            margin-bottom: 24px;
            letter-spacing: 0.5px;
        }

        .hero-section h1 {
            font-size: clamp(32px, 5vw, 50px);
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.5px;
            max-width: 780px;
            margin: 0 auto 20px;
        }

        .hero-sub {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto 32px;
        }

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

        .hero-note {
            margin-top: 22px;
            font-size: 13px;
            color: var(--text-dim);
        }

        /* 数据条 */
        .stats-strip {
            background: rgba(255, 255, 255, 0.03);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .stat-item {
            text-align: center;
            padding: 28px 16px;
        }

        .stat-num {
            font-size: 30px;
            font-weight: 800;
            color: var(--primary);
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
        }

        .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 6px;
        }

        /* 板块通用 */
        .section-padding {
            padding: 96px 0;
        }

        .section-title {
            text-align: center;
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 700;
            letter-spacing: -0.3px;
            line-height: 1.35;
            margin-bottom: 14px;
        }

        .section-sub {
            text-align: center;
            font-size: 15px;
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto 48px;
            line-height: 1.8;
        }

        /* 服务卡片 */
        .service-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px;
            transition: background .25s, border-color .25s, transform .25s;
            position: relative;
        }

        .service-card:hover {
            background: var(--surface-hover);
            border-color: var(--border-strong);
            transform: translateY(-4px);
        }

        .service-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 11px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            color: #fff;
            margin-bottom: 16px;
        }

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

        .service-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .service-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
        }

        .service-card .more-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            font-weight: 500;
            color: var(--primary);
            margin-top: 14px;
        }

        .service-card .more-link:hover {
            text-decoration: underline;
        }

        /* 场景 */
        .scenario-img-wrap {
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid var(--border);
        }

        .scenario-img-wrap img {
            width: 100%;
            height: 360px;
            object-fit: cover;
            transition: transform .5s ease;
        }

        .scenario-img-wrap:hover img {
            transform: scale(1.03);
        }

        .scenario-content h3 {
            font-size: 24px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 14px;
        }

        .scenario-content p {
            font-size: 15px;
            line-height: 1.85;
            color: var(--text-muted);
            margin-bottom: 18px;
        }

        .scenario-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
        }

        .scenario-link:hover {
            text-decoration: underline;
        }

        /* 流程 */
        .steps-section {
            background: rgba(255, 255, 255, 0.02);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .step-card {
            position: relative;
            padding: 28px 24px 24px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            height: 100%;
        }

        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 9px;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .step-card h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .step-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* FAQ */
        .faq-wrap {
            max-width: 780px;
            margin: 0 auto;
        }

        .faq-item {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border);
            border-radius: 12px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color .2s ease;
        }

        .faq-item.open {
            border-color: rgba(245, 158, 11, 0.4);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
            min-height: 52px;
            padding: 0 20px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            text-align: left;
            transition: color .2s;
            min-height: 48px;
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-item.open .faq-question {
            color: var(--primary);
        }

        .faq-icon {
            font-size: 22px;
            font-weight: 300;
            color: var(--text-muted);
            transition: transform .25s ease, color .2s;
            flex-shrink: 0;
            line-height: 1;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .28s ease, padding .28s ease;
            padding: 0 20px;
        }

        .faq-item.open .faq-answer {
            max-height: 420px;
            padding: 0 20px 16px;
        }

        .faq-answer p {
            font-size: 14px;
            color: rgba(245, 240, 232, 0.7);
            line-height: 1.8;
        }

        /* 相邻分类互链 */
        .rel-card {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            gap: 16px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px;
            min-height: 160px;
            transition: border-color .2s, background .2s, transform .2s;
        }

        .rel-card:hover {
            border-color: var(--primary);
            background: var(--surface-hover);
            transform: translateY(-3px);
        }

        .rel-card h3 {
            font-size: 18px;
            font-weight: 600;
        }

        .rel-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .rel-card .rel-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* CTA */
        .cta-section {
            position: relative;
            overflow: hidden;
            padding: 96px 0;
            text-align: center;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            width: 560px;
            height: 560px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.2) 0%, transparent 70%);
            right: -140px;
            bottom: -180px;
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 700;
            margin-bottom: 12px;
        }

        .cta-section p {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 480px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }

        .cta-note {
            margin-top: 16px;
            font-size: 13px;
            color: var(--text-dim);
        }

        /* 页脚 */
        .site-footer {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            background: rgba(0, 0, 0, 0.2);
            padding: 64px 0 32px;
        }

        .footer-title {
            font-size: 14px;
            font-weight: 600;
            color: rgba(245, 240, 232, 0.9);
            margin-bottom: 16px;
        }

        .footer-link {
            display: block;
            font-size: 14px;
            color: rgba(245, 240, 232, 0.6);
            margin-bottom: 10px;
            transition: color .2s;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            margin-top: 44px;
            padding-top: 24px;
            text-align: center;
            font-size: 13px;
            color: rgba(245, 240, 232, 0.35);
        }

        /* 响应式 */
        @media (max-width: 1023px) {
            .section-padding {
                padding: 76px 0;
            }
            .hide-desktop {
                display: flex;
            }
        }

        @media (max-width: 767px) {
            .section-padding {
                padding: 64px 0;
            }
            .hero-content {
                padding: 64px 20px 72px;
            }
            .scenario-img-wrap img {
                height: 240px;
            }
            .stat-num {
                font-size: 24px;
            }
        }

        @media (max-width: 520px) {
            .container-custom {
                padding: 0 18px;
            }
            .btn-primary,
            .btn-outline {
                width: 100%;
                max-width: 260px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
        }

/* roulang page: article */
:root {
            --bg: #131211;
            --bg-elevated: #1a1917;
            --bg-card: rgba(255,255,255,0.04);
            --bg-hover: rgba(255,255,255,0.07);
            --border: rgba(255,255,255,0.08);
            --border-strong: rgba(255,255,255,0.16);
            --text: #F5F0E8;
            --text-secondary: rgba(245,240,232,0.65);
            --text-muted: rgba(245,240,232,0.5);
            --accent: #F59E0B;
            --accent-deep: #EA580C;
            --violet: #7C5CFC;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-glow: 0 0 16px rgba(245,158,11,0.35);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'PingFang SC', 'HarmonyOS Sans SC', 'MiSans', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: inherit;
            text-decoration: none;
        }

        button {
            font-family: inherit;
            cursor: pointer;
        }

        input {
            font-family: inherit;
        }

        ::selection {
            background: rgba(245,158,11,0.3);
        }

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

        @media (max-width: 640px) {
            .container-custom {
                padding: 0 16px;
            }
        }

        /* ========== Header & Nav ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(19,18,17,0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }

        .logo-icon {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: linear-gradient(135deg, #F59E0B, #EA580C);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            box-shadow: 0 0 12px rgba(245,158,11,0.25);
        }

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

        .nav-link {
            position: relative;
            font-size: 14px;
            font-weight: 500;
            color: rgba(245,240,232,0.7);
            padding: 6px 2px;
            transition: color 0.2s;
            white-space: nowrap;
        }

        .nav-link:hover {
            color: #fff;
        }

        .nav-link.active {
            color: var(--accent);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: -2px;
            height: 2px;
            border-radius: 2px;
            background: var(--accent);
        }

        .search-box {
            display: flex;
            align-items: center;
            gap: 8px;
            background: rgba(255,255,255,0.08);
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: 999px;
            padding: 8px 16px;
            width: 200px;
            transition: border-color 0.2s, box-shadow 0.2s;
        }

        .search-box svg {
            width: 16px;
            height: 16px;
            color: rgba(245,240,232,0.5);
            flex-shrink: 0;
        }

        .search-box input {
            background: transparent;
            border: none;
            outline: none;
            color: var(--text);
            font-size: 14px;
            width: 100%;
        }

        .search-box input::placeholder {
            color: rgba(245,240,232,0.4);
        }

        .search-box:focus-within {
            border-color: rgba(245,158,11,0.4);
            box-shadow: 0 0 0 2px rgba(245,158,11,0.15);
            background: rgba(255,255,255,0.1);
        }

        @media (max-width: 1024px) {
            .search-box {
                width: 100%;
                max-width: 320px;
            }
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--accent);
            color: #1a1408;
            font-weight: 600;
            font-size: 14px;
            border-radius: 8px;
            padding: 10px 20px;
            transition: all 0.2s;
            border: none;
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: #FBBF24;
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }

        .btn-primary:focus-visible {
            outline: 2px solid rgba(245,158,11,0.5);
            outline-offset: 2px;
        }

        .hamburger {
            width: 44px;
            height: 44px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            background: transparent;
            border: none;
            border-radius: 8px;
            transition: background 0.2s;
        }

        .hamburger:hover {
            background: rgba(255,255,255,0.05);
        }

        .hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all 0.3s;
        }

        .hamburger.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-drawer {
            display: none;
            padding: 16px 24px 24px;
            border-top: 1px solid rgba(255,255,255,0.06);
            background: rgba(19,18,17,0.98);
        }

        .mobile-drawer.open {
            display: block;
        }

        .mobile-drawer .nav-link {
            display: block;
            padding: 12px 0;
            font-size: 15px;
            border-bottom: 1px solid rgba(255,255,255,0.04);
        }

        .mobile-drawer .nav-link.active::after {
            display: none;
        }

        /* ========== Article Hero ========== */
        .article-hero {
            position: relative;
            padding: 64px 0 48px;
            background:
                radial-gradient(600px 260px at 15% 0%, rgba(245,158,11,0.08), transparent 60%),
                radial-gradient(500px 200px at 85% 0%, rgba(124,92,252,0.06), transparent 60%);
            border-bottom: 1px solid rgba(255,255,255,0.04);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: rgba(245,240,232,0.5);
            margin-bottom: 32px;
        }

        .breadcrumb a {
            color: rgba(245,240,232,0.6);
            transition: color 0.2s;
        }

        .breadcrumb a:hover {
            color: var(--accent);
        }

        .breadcrumb .current {
            color: rgba(245,240,232,0.8);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            max-width: 240px;
        }

        .article-title {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.01em;
            margin-bottom: 20px;
            color: var(--text);
        }

        @media (max-width: 768px) {
            .article-title {
                font-size: 28px;
            }
        }

        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 14px;
            color: rgba(245,240,232,0.5);
            padding-bottom: 24px;
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 500;
            background: linear-gradient(135deg, rgba(245,158,11,0.22), rgba(124,92,252,0.15));
            color: #F5F0E8;
            border: 1px solid rgba(245,158,11,0.22);
        }

        .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .meta-item svg {
            width: 15px;
            height: 15px;
            opacity: 0.6;
        }

        .hero-cover {
            border-radius: 16px;
            border: 1px solid rgba(255,255,255,0.1);
            box-shadow: 0 8px 32px rgba(0,0,0,0.3);
            width: 100%;
            height: auto;
        }

        /* ========== Article Body ========== */
        .article-section {
            padding: 0 0 24px;
        }

        .article-body {
            max-width: 720px;
            margin: 0 auto;
            padding: 48px 0 40px;
        }

        .article-body p {
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 24px;
            color: rgba(245,240,232,0.85);
        }

        .article-body h2 {
            font-size: 24px;
            font-weight: 700;
            margin-top: 40px;
            margin-bottom: 20px;
            color: #F5F0E8;
            line-height: 1.4;
        }

        .article-body h3 {
            font-size: 18px;
            font-weight: 600;
            margin-top: 32px;
            margin-bottom: 16px;
            color: #F5F0E8;
            line-height: 1.5;
        }

        .article-body ul,
        .article-body ol {
            padding-left: 1.5rem;
            margin-bottom: 24px;
            line-height: 1.6;
        }

        .article-body li {
            margin-bottom: 8px;
            color: rgba(245,240,232,0.8);
        }

        .article-body blockquote {
            border-left: 3px solid var(--accent);
            background: rgba(245,158,11,0.06);
            padding: 16px 20px;
            border-radius: 0 12px 12px 0;
            color: rgba(245,240,232,0.7);
            font-style: italic;
            margin: 24px 0;
        }

        .article-body code {
            background: rgba(255,255,255,0.08);
            padding: 2px 6px;
            border-radius: 4px;
            font-size: 14px;
            color: rgba(245,240,232,0.9);
        }

        .article-body pre {
            background: #0d0c0b;
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: 12px;
            padding: 20px;
            overflow-x: auto;
            margin-bottom: 24px;
        }

        .article-body pre code {
            background: transparent;
            padding: 0;
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: 12px;
            overflow: hidden;
            margin-bottom: 24px;
            display: block;
            overflow-x: auto;
        }

        .article-body th,
        .article-body td {
            padding: 12px 16px;
            border-bottom: 1px solid rgba(255,255,255,0.06);
            text-align: left;
            font-size: 14px;
            white-space: nowrap;
        }

        .article-body th {
            background: rgba(255,255,255,0.06);
            font-weight: 600;
            color: #F5F0E8;
        }

        .article-body img {
            border-radius: 12px;
            margin: 24px auto;
        }

        .article-body a {
            color: var(--accent);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-body a:hover {
            color: #FBBF24;
        }

        /* ========== Article Bottom ========== */
        .article-bottom {
            max-width: 720px;
            margin: 0 auto;
            padding: 24px 0 56px;
            border-top: 1px solid rgba(255,255,255,0.06);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }

        .tag-pill {
            display: inline-flex;
            align-items: center;
            padding: 6px 14px;
            border-radius: 999px;
            font-size: 13px;
            color: rgba(245,240,232,0.7);
            background: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,255,255,0.08);
            transition: all 0.2s;
        }

        .tag-pill:hover {
            color: var(--accent);
            border-color: rgba(245,158,11,0.4);
        }

        .share-btn {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,255,255,0.08);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: rgba(245,240,232,0.6);
            transition: all 0.2s;
        }

        .share-btn:hover {
            color: var(--accent);
            border-color: rgba(245,158,11,0.4);
            background: rgba(245,158,11,0.08);
            transform: translateY(-2px);
        }

        .share-btn:focus-visible {
            outline: 2px solid rgba(245,158,11,0.5);
            outline-offset: 2px;
        }

        .share-btn svg {
            width: 18px;
            height: 18px;
        }

        /* ========== Related ========== */
        .related-section {
            padding: 64px 0;
            background: rgba(255,255,255,0.02);
            border-top: 1px solid rgba(255,255,255,0.04);
        }

        .section-header {
            margin-bottom: 40px;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.3;
        }

        .section-subtitle {
            font-size: 14px;
            color: rgba(245,240,232,0.5);
            margin-top: 8px;
        }

        .related-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all 0.25s;
            display: block;
            height: 100%;
        }

        .related-card:hover {
            background: rgba(255,255,255,0.07);
            border-color: var(--border-strong);
            transform: translateY(-4px);
        }

        .related-card:focus-visible {
            outline: 2px solid rgba(245,158,11,0.5);
            outline-offset: 2px;
        }

        .related-card .thumb-wrap {
            overflow: hidden;
            aspect-ratio: 16 / 8;
        }

        .related-card .thumb {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s;
        }

        .related-card:hover .thumb {
            transform: scale(1.03);
        }

        .related-card-body {
            padding: 20px;
        }

        .related-card-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 8px;
            transition: color 0.2s;
        }

        .related-card:hover .related-card-title {
            color: var(--accent);
        }

        .related-card-summary {
            font-size: 13px;
            line-height: 1.6;
            color: rgba(245,240,232,0.5);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }

        .related-card-date {
            font-size: 12px;
            color: rgba(245,240,232,0.4);
            font-variant-numeric: tabular-nums;
        }

        /* ========== Back Links ========== */
        .back-section {
            padding: 40px 0 72px;
        }

        .back-links {
            max-width: 720px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            font-size: 14px;
        }

        .back-links a {
            color: var(--accent);
            transition: opacity 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .back-links a:hover {
            opacity: 0.8;
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        /* ========== Footer ========== */
        .site-footer {
            border-top: 1px solid rgba(255,255,255,0.06);
            padding: 64px 0 32px;
            background: #0e0d0c;
            margin-top: 0;
        }

        .footer-title {
            font-size: 14px;
            font-weight: 600;
            color: rgba(245,240,232,0.9);
            margin-bottom: 16px;
        }

        .footer-link {
            display: block;
            font-size: 14px;
            color: rgba(245,240,232,0.6);
            padding: 6px 0;
            transition: color 0.2s;
        }

        .footer-link:hover {
            color: var(--accent);
        }

        .footer-bottom {
            margin-top: 48px;
            padding-top: 24px;
            border-top: 1px solid rgba(255,255,255,0.06);
            text-align: center;
            font-size: 13px;
            color: rgba(245,240,232,0.4);
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .article-hero {
                padding: 48px 0 40px;
            }

            .hero-cover {
                margin-top: 32px;
            }
        }

        @media (max-width: 768px) {
            .article-body {
                padding: 36px 0 32px;
            }

            .article-bottom {
                padding: 20px 0 40px;
            }

            .related-section {
                padding: 48px 0;
            }

            .section-title {
                font-size: 24px;
            }
        }

        @media (max-width: 520px) {
            .breadcrumb {
                font-size: 12px;
                margin-bottom: 24px;
            }

            .article-meta {
                gap: 12px;
                font-size: 13px;
            }

            .article-body p {
                font-size: 15px;
            }

            .back-section {
                padding: 24px 0 56px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #F59E0B;
            --primary-hover: #FBBF24;
            --primary-dark: #EA580C;
            --secondary: #7C5CFC;
            --bg: #131211;
            --bg-light: #1B1918;
            --text: #F5F0E8;
            --text-weak: rgba(245, 240, 232, 0.5);
            --border: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(255, 255, 255, 0.15);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'PingFang SC', 'HarmonyOS Sans SC', 'MiSans', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: inherit;
            text-decoration: none;
        }

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

        button,
        input {
            font-family: inherit;
        }

        .container-custom {
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(19, 18, 17, 0.9);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .logo-icon {
            display: inline-flex;
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: linear-gradient(135deg, #F59E0B, #EA580C);
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

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

        .nav-link {
            position: relative;
            font-size: 14px;
            color: rgba(245, 240, 232, 0.7);
            font-weight: 500;
            padding: 6px 2px;
            transition: color 0.2s;
        }

        .nav-link:hover {
            color: #fff;
        }

        .nav-link.active {
            color: var(--primary);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 100%;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .search-box {
            display: flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 999px;
            padding: 8px 14px;
            width: 200px;
            transition: border-color 0.2s, box-shadow 0.2s;
        }

        .search-box svg {
            width: 16px;
            height: 16px;
            color: rgba(245, 240, 232, 0.6);
            flex-shrink: 0;
        }

        .search-box input {
            background: transparent;
            border: none;
            outline: none;
            color: var(--text);
            font-size: 14px;
            width: 100%;
        }

        .search-box input::placeholder {
            color: rgba(245, 240, 232, 0.4);
        }

        .search-box:focus-within {
            border-color: rgba(245, 158, 11, 0.5);
            box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: #131211;
            font-weight: 600;
            font-size: 14px;
            padding: 10px 20px;
            border-radius: 8px;
            min-height: 44px;
            transition: all 0.2s ease;
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 0 16px rgba(245, 158, 11, 0.35);
        }

        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-primary:focus {
            outline: 2px solid rgba(245, 158, 11, 0.4);
            outline-offset: 2px;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: var(--text);
            font-weight: 500;
            font-size: 14px;
            padding: 9px 20px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            min-height: 44px;
            transition: all 0.2s;
            cursor: pointer;
        }

        .btn-secondary:hover {
            border-color: rgba(255, 255, 255, 0.4);
            background: rgba(255, 255, 255, 0.05);
        }

        .btn-secondary:focus {
            outline: 2px solid rgba(245, 158, 11, 0.3);
            outline-offset: 2px;
        }

        .btn-text {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-size: 14px;
            font-weight: 500;
            transition: color 0.2s;
            min-height: 44px;
        }

        .btn-text:hover {
            color: var(--primary-hover);
            text-decoration: underline;
        }

        .hamburger {
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 44px;
            height: 44px;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 10px;
        }

        .hamburger span {
            display: block;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: transform 0.3s, opacity 0.3s;
        }

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

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

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

        .mobile-drawer {
            display: none;
            padding: 16px 20px 20px;
            background: rgba(19, 18, 17, 0.98);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .mobile-drawer.open {
            display: block;
        }

        .mobile-drawer .nav-link {
            display: block;
            padding: 12px 4px;
            font-size: 15px;
        }

        .hero-section {
            position: relative;
            overflow: hidden;
            background-image: linear-gradient(100deg, rgba(19, 18, 17, 0.92) 20%, rgba(19, 18, 17, 0.7) 60%, rgba(19, 18, 17, 0.82)), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .hero-section::before {
            content: '';
            position: absolute;
            left: -80px;
            top: -80px;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.18), transparent 70%);
            pointer-events: none;
        }

        .hero-title {
            font-size: 44px;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.02em;
        }

        .hero-subtitle {
            font-size: 18px;
            color: rgba(245, 240, 232, 0.7);
            line-height: 1.7;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            background: rgba(124, 92, 252, 0.15);
            color: #A78BFA;
            font-size: 13px;
            font-weight: 500;
            padding: 4px 14px;
            border-radius: 999px;
            border: 1px solid rgba(124, 92, 252, 0.25);
        }

        .section {
            padding: 80px 0;
        }

        .section-header {
            max-width: 720px;
            margin-bottom: 48px;
        }

        .section-header h2 {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.02em;
        }

        .section-header p {
            margin-top: 12px;
            color: rgba(245, 240, 232, 0.6);
            font-size: 15px;
        }

        .stat-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            text-align: center;
            transition: all 0.3s;
        }

        .stat-card:hover {
            background: rgba(255, 255, 255, 0.07);
            border-color: var(--border-hover);
            transform: translateY(-4px);
        }

        .stat-number {
            font-size: 36px;
            font-weight: 700;
            color: var(--primary);
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
        }

        .stat-label {
            margin-top: 8px;
            font-size: 14px;
            color: rgba(245, 240, 232, 0.6);
        }

        .card-feature {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all 0.3s;
            height: 100%;
        }

        .card-feature:hover {
            background: rgba(255, 255, 255, 0.07);
            border-color: var(--border-hover);
            transform: translateY(-6px);
        }

        .card-feature img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }

        .card-feature .card-body {
            padding: 24px;
        }

        .card-feature h3 {
            font-size: 18px;
            font-weight: 600;
            margin-top: 12px;
        }

        .card-feature p {
            color: rgba(245, 240, 232, 0.6);
            font-size: 14px;
            margin-top: 8px;
            line-height: 1.7;
        }

        .scene-title {
            font-size: 22px;
            font-weight: 600;
            line-height: 1.4;
        }

        .scene-text {
            color: rgba(245, 240, 232, 0.6);
            font-size: 15px;
            margin-top: 12px;
            line-height: 1.8;
        }

        .step-card {
            position: relative;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            transition: all 0.3s;
        }

        .step-card:hover {
            background: rgba(255, 255, 255, 0.06);
            border-color: rgba(245, 158, 11, 0.4);
            transform: translateY(-4px);
        }

        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: linear-gradient(135deg, #F59E0B, #EA580C);
            color: #131211;
            font-weight: 700;
            font-size: 14px;
        }

        .step-card h3 {
            font-size: 17px;
            font-weight: 600;
            margin-top: 16px;
        }

        .step-card p {
            font-size: 14px;
            color: rgba(245, 240, 232, 0.6);
            margin-top: 8px;
            line-height: 1.7;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.02);
            overflow: hidden;
            transition: border-color 0.3s;
        }

        .faq-item.open {
            border-color: rgba(245, 158, 11, 0.4);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            min-height: 48px;
            padding: 12px 20px;
            background: transparent;
            border: none;
            color: var(--text);
            font-size: 15px;
            font-weight: 500;
            text-align: left;
            cursor: pointer;
            transition: color 0.3s;
        }

        .faq-question .icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
            transition: transform 0.3s;
            font-size: 18px;
            line-height: 1;
        }

        .faq-item.open .faq-question {
            color: var(--primary);
        }

        .faq-item.open .faq-question .icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            padding: 0 20px;
            transition: max-height 0.3s ease, padding 0.3s ease;
        }

        .faq-item.open .faq-answer {
            max-height: 320px;
            padding: 0 20px 16px;
        }

        .faq-answer p {
            font-size: 14px;
            color: rgba(245, 240, 232, 0.7);
            line-height: 1.75;
        }

        .faq-question:focus {
            outline: 2px solid rgba(245, 158, 11, 0.3);
            outline-offset: -2px;
        }

        .cta-section {
            position: relative;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            background: radial-gradient(circle at 85% 80%, rgba(245, 158, 11, 0.12), transparent 55%);
        }

        .cta-section h2 {
            font-size: 32px;
            font-weight: 700;
        }

        .cta-section p {
            color: rgba(245, 240, 232, 0.6);
            margin-top: 12px;
        }

        .link-card {
            display: flex;
            flex-direction: column;
            gap: 6px;
            padding: 28px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            transition: all 0.3s;
        }

        .link-card:hover {
            border-color: rgba(245, 158, 11, 0.5);
            background: rgba(255, 255, 255, 0.05);
            transform: translateY(-4px);
        }

        .link-card span:first-child {
            font-size: 18px;
            font-weight: 600;
        }

        .link-card span:last-child {
            font-size: 14px;
            color: rgba(245, 240, 232, 0.5);
        }

        .site-footer {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 64px 0 24px;
            margin-top: 40px;
        }

        .footer-title {
            font-size: 14px;
            font-weight: 600;
            color: rgba(245, 240, 232, 0.9);
            margin-bottom: 16px;
        }

        .footer-link {
            display: block;
            font-size: 14px;
            color: rgba(245, 240, 232, 0.5);
            padding: 6px 0;
            transition: color 0.2s;
        }

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

        .footer-bottom {
            margin-top: 48px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            text-align: center;
            font-size: 13px;
            color: rgba(245, 240, 232, 0.4);
        }

        @media (max-width: 1024px) {
            .hero-title {
                font-size: 36px;
            }

            .nav-link {
                font-size: 15px;
            }
        }

        @media (max-width: 640px) {
            .section {
                padding: 56px 0;
            }

            .section-header h2 {
                font-size: 24px;
            }

            .hero-title {
                font-size: 32px;
            }

            .hero-subtitle {
                font-size: 16px;
            }

            .stat-number {
                font-size: 28px;
            }

            .card-feature img {
                height: 160px;
            }

            .scene-title {
                font-size: 19px;
            }

            .cta-section h2 {
                font-size: 26px;
            }
        }