/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0f1b3d;
            --primary-light: #1a2d5e;
            --secondary: #d4a84b;
            --secondary-light: #e8c46a;
            --accent: #e74c3c;
            --accent-light: #f05a4a;
            --bg: #f5f6fa;
            --bg-dark: #0a1128;
            --bg-card: #ffffff;
            --text: #1a1a2e;
            --text-light: #5a5a7a;
            --text-white: #ffffff;
            --text-muted: #8a8aaa;
            --border: #e0e0ee;
            --border-light: #f0f0f8;
            --shadow: 0 4px 20px rgba(15, 27, 61, 0.08);
            --shadow-hover: 0 12px 40px rgba(15, 27, 61, 0.16);
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--secondary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--text);
        }
        h1 {
            font-size: 2.8rem;
        }
        h2 {
            font-size: 2.2rem;
            margin-bottom: 0.5rem;
        }
        h3 {
            font-size: 1.5rem;
        }
        h4 {
            font-size: 1.2rem;
        }
        p {
            margin-bottom: 1rem;
            color: var(--text-light);
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            border: 2px solid transparent;
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--secondary);
            color: var(--primary);
            border-color: var(--secondary);
        }
        .btn-primary:hover {
            background: var(--secondary-light);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(212, 168, 75, 0.35);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-outline {
            background: transparent;
            color: var(--text-white);
            border-color: var(--text-white);
        }
        .btn-outline:hover {
            background: var(--text-white);
            color: var(--primary);
            transform: translateY(-2px);
        }
        .btn-outline:active {
            transform: translateY(0);
        }
        .btn-accent {
            background: var(--accent);
            color: var(--text-white);
            border-color: var(--accent);
        }
        .btn-accent:hover {
            background: var(--accent-light);
            color: var(--text-white);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(231, 76, 60, 0.35);
        }
        .btn-lg {
            padding: 18px 44px;
            font-size: 1.1rem;
            border-radius: var(--radius);
        }
        .btn-sm {
            padding: 10px 20px;
            font-size: 0.875rem;
        }
        .btn:focus-visible {
            outline: 3px solid var(--secondary);
            outline-offset: 2px;
        }

        /* ===== 标签 & 徽章 ===== */
        .badge {
            display: inline-block;
            padding: 4px 14px;
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: 20px;
            background: var(--secondary);
            color: var(--primary);
            letter-spacing: 0.5px;
        }
        .badge-hot {
            background: var(--accent);
            color: #fff;
        }
        .badge-new {
            background: #2ecc71;
            color: #fff;
        }
        .tag {
            display: inline-block;
            padding: 4px 12px;
            font-size: 0.8rem;
            border-radius: var(--radius-sm);
            background: var(--border-light);
            color: var(--text-light);
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .tag:hover {
            background: var(--secondary);
            color: var(--primary);
            border-color: var(--secondary);
        }

        /* ===== 头部 & 导航 ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(15, 27, 61, 0.95);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: background var(--transition);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: 1px;
        }
        .logo i {
            color: var(--secondary);
            font-size: 1.6rem;
        }
        .logo span {
            background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav a {
            padding: 8px 18px;
            font-size: 0.95rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.75);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            position: relative;
        }
        .nav a:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.08);
        }
        .nav a.active {
            color: var(--secondary);
            background: rgba(212, 168, 75, 0.12);
        }
        .nav a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--secondary);
            border-radius: 2px;
        }
        .nav-cta {
            padding: 8px 22px !important;
            background: var(--secondary) !important;
            color: var(--primary) !important;
            border-radius: var(--radius-sm) !important;
            font-weight: 700 !important;
        }
        .nav-cta:hover {
            background: var(--secondary-light) !important;
            transform: translateY(-1px);
            box-shadow: 0 4px 20px rgba(212, 168, 75, 0.3);
        }
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            background: none;
            border: none;
        }
        .menu-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-white);
            border-radius: 2px;
            transition: all var(--transition);
        }
        .menu-toggle.open span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .menu-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .menu-toggle.open span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 92vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--bg-dark);
            padding: calc(var(--header-height) + 40px) 0 80px;
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.4;
            transform: scale(1.05);
            animation: heroZoom 20s ease-in-out infinite alternate;
        }
        @keyframes heroZoom {
            0% {
                transform: scale(1.05);
            }
            100% {
                transform: scale(1.15);
            }
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 27, 61, 0.92) 0%, rgba(10, 17, 40, 0.8) 50%, rgba(15, 27, 61, 0.92) 100%);
        }
        .hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .hero-badge {
            display: inline-block;
            padding: 6px 24px;
            font-size: 0.85rem;
            font-weight: 600;
            border-radius: 30px;
            background: rgba(212, 168, 75, 0.15);
            color: var(--secondary);
            border: 1px solid rgba(212, 168, 75, 0.25);
            margin-bottom: 24px;
            letter-spacing: 1px;
        }
        .hero h1 {
            font-size: 3.6rem;
            font-weight: 900;
            color: var(--text-white);
            margin-bottom: 20px;
            line-height: 1.2;
            letter-spacing: -0.5px;
        }
        .hero h1 span {
            background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 680px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 48px;
            margin-top: 56px;
            flex-wrap: wrap;
        }
        .hero-stat {
            text-align: center;
            color: var(--text-white);
        }
        .hero-stat .num {
            font-size: 2.4rem;
            font-weight: 900;
            color: var(--secondary);
            display: block;
            line-height: 1.2;
        }
        .hero-stat .label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 4px;
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 80px 0;
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .section-dark h2,
        .section-dark h3,
        .section-dark .section-sub {
            color: var(--text-white);
        }
        .section-dark .section-sub {
            color: rgba(255, 255, 255, 0.65);
        }
        .section-gray {
            background: #f0f2f8;
        }
        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }
        .section-header h2 {
            margin-bottom: 12px;
        }
        .section-sub {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto;
        }
        .section-header .badge {
            margin-bottom: 16px;
        }

        /* ===== 卡片 ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: all var(--transition);
            border: 1px solid var(--border-light);
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
        }
        .card-body {
            padding: 24px;
        }
        .card-body h3 {
            font-size: 1.2rem;
            margin-bottom: 8px;
        }
        .card-body p {
            font-size: 0.95rem;
            color: var(--text-light);
            margin-bottom: 12px;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .card-meta i {
            margin-right: 4px;
        }
        .card-footer {
            padding: 16px 24px;
            border-top: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        /* ===== 网格 ===== */
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        /* ===== 优势板块 ===== */
        .advantage-card {
            text-align: center;
            padding: 36px 24px;
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .advantage-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .advantage-card .icon {
            width: 64px;
            height: 64px;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(212, 168, 75, 0.12), rgba(212, 168, 75, 0.04));
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 1.8rem;
            color: var(--secondary);
        }
        .advantage-card h3 {
            font-size: 1.15rem;
            margin-bottom: 10px;
        }
        .advantage-card p {
            font-size: 0.95rem;
            color: var(--text-light);
            margin-bottom: 0;
        }

        /* ===== 分类卡片 ===== */
        .category-card {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            height: 280px;
            display: flex;
            align-items: flex-end;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            cursor: pointer;
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .category-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .category-card:hover img {
            transform: scale(1.08);
        }
        .category-card .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(15, 27, 61, 0.85) 0%, rgba(15, 27, 61, 0.1) 60%, transparent 100%);
        }
        .category-card .info {
            position: relative;
            z-index: 2;
            padding: 28px 24px;
            color: var(--text-white);
            width: 100%;
        }
        .category-card .info h3 {
            font-size: 1.4rem;
            color: var(--text-white);
            margin-bottom: 6px;
        }
        .category-card .info p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
            margin-bottom: 0;
        }
        .category-card .info .badge {
            margin-bottom: 12px;
        }

        /* ===== 资讯列表 ===== */
        .news-item {
            display: flex;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border-light);
            transition: background var(--transition);
        }
        .news-item:last-child {
            border-bottom: none;
        }
        .news-item:hover {
            padding-left: 12px;
        }
        .news-thumb {
            width: 120px;
            min-width: 120px;
            height: 80px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: var(--border-light);
        }
        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .news-info {
            flex: 1;
            min-width: 0;
        }
        .news-info h4 {
            font-size: 1.05rem;
            margin-bottom: 6px;
            font-weight: 600;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-info h4 a:hover {
            color: var(--secondary);
        }
        .news-info p {
            font-size: 0.9rem;
            color: var(--text-muted);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 0;
        }
        .news-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 8px;
        }
        .news-meta .tag {
            font-size: 0.7rem;
            padding: 2px 10px;
        }

        /* ===== 数据板块 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            text-align: center;
            padding: 36px 20px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius);
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: all var(--transition);
        }
        .stat-card:hover {
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-4px);
        }
        .stat-card .num {
            font-size: 2.8rem;
            font-weight: 900;
            color: var(--secondary);
            display: block;
            line-height: 1.2;
        }
        .stat-card .label {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 8px;
            display: block;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            background: none;
            width: 100%;
            text-align: left;
            color: var(--text);
            gap: 16px;
            transition: background var(--transition);
        }
        .faq-question:hover {
            background: var(--border-light);
        }
        .faq-question i {
            font-size: 1.2rem;
            color: var(--secondary);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.95rem;
            color: var(--text-light);
            display: none;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary), var(--bg-dark));
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.1;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            color: var(--text-white);
            font-size: 2.4rem;
            margin-bottom: 16px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.15rem;
            max-width: 580px;
            margin: 0 auto 32px;
        }
        .cta-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 56px 0 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            margin-bottom: 16px;
            font-size: 1.2rem;
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.5);
            max-width: 300px;
        }
        .footer h4 {
            font-size: 1rem;
            color: var(--text-white);
            margin-bottom: 16px;
            font-weight: 600;
        }
        .footer a {
            display: block;
            padding: 4px 0;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition);
        }
        .footer a:hover {
            color: var(--secondary);
        }
        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 16px;
        }
        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.6);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all var(--transition);
            padding: 0;
        }
        .footer-social a:hover {
            background: var(--secondary);
            color: var(--primary);
            border-color: var(--secondary);
            transform: translateY(-3px);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a {
            display: inline;
            padding: 0;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== 空状态 ===== */
        .empty-state {
            text-align: center;
            padding: 40px 20px;
            color: var(--text-muted);
        }
        .empty-state i {
            font-size: 2.4rem;
            margin-bottom: 16px;
            opacity: 0.4;
        }
        .empty-state p {
            font-size: 1rem;
            color: var(--text-muted);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .hero h1 {
                font-size: 2.6rem;
            }
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
            }
            .nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(15, 27, 61, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px;
                gap: 4px;
                display: none;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
                max-height: calc(100vh - var(--header-height));
                overflow-y: auto;
            }
            .nav.open {
                display: flex;
            }
            .nav a {
                width: 100%;
                padding: 12px 16px;
                font-size: 1rem;
            }
            .nav a.active::after {
                display: none;
            }
            .nav-cta {
                margin-top: 8px;
                text-align: center;
            }
            .menu-toggle {
                display: flex;
            }
            .hero {
                min-height: 80vh;
                padding-top: calc(var(--header-height) + 24px);
                padding-bottom: 48px;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .hero-stats {
                gap: 24px;
                margin-top: 36px;
            }
            .hero-stat .num {
                font-size: 1.8rem;
            }
            .section {
                padding: 56px 0;
            }
            .grid-2,
            .grid-3,
            .grid-4 {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-card .num {
                font-size: 2rem;
            }
            .news-item {
                flex-direction: column;
                gap: 12px;
            }
            .news-thumb {
                width: 100%;
                min-width: unset;
                height: 160px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-section h2 {
                font-size: 1.8rem;
            }
            .category-card {
                height: 220px;
            }
            .section-header {
                margin-bottom: 36px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .hero h1 {
                font-size: 1.6rem;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .hero-stats {
                flex-direction: column;
                gap: 16px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-card {
                padding: 24px 16px;
            }
            .stat-card .num {
                font-size: 1.6rem;
            }
            .btn-lg {
                padding: 14px 28px;
                font-size: 1rem;
            }
            .category-card {
                height: 180px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 0.9rem;
            }
            .faq-answer {
                padding: 0 16px 14px;
            }
        }

        /* ===== 辅助 ===== */
        .text-center {
            text-align: center;
        }
        .mt-8 {
            margin-top: 8px;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .gap-8 {
            gap: 8px;
        }
        .gap-16 {
            gap: 16px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }
        .w-full {
            width: 100%;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }
        .section-divider {
            width: 60px;
            height: 3px;
            background: var(--secondary);
            border-radius: 2px;
            margin: 16px auto 0;
        }
        .section-dark .section-divider {
            background: var(--secondary);
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #e8a832;
            --primary-dark: #c98a1e;
            --primary-light: #f5c55a;
            --secondary: #1e2a4a;
            --secondary-light: #2a3a5e;
            --accent: #ff6b35;
            --bg-white: #ffffff;
            --bg-light: #f4f6fb;
            --bg-dark: #0f1424;
            --bg-card: #ffffff;
            --text-dark: #1a1a2e;
            --text-main: #2d2d44;
            --text-light: #6b7280;
            --text-white: #ffffff;
            --border: #e5e7eb;
            --border-light: #f0f2f5;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.14);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-main);
            background: var(--bg-light);
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-dark); }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; color: var(--text-dark); font-weight: 700; }
        .container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
        @media (max-width: 768px) { .container { padding: 0 16px; } }

        /* ===== Header & Navigation ===== */
        .header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
            background: rgba(255, 255, 255, 0.95); backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border); height: var(--header-height);
            transition: var(--transition);
        }
        .header.scrolled { box-shadow: var(--shadow); }
        .header .container { display: flex; align-items: center; justify-content: space-between; height: 100%; }
        .logo {
            display: flex; align-items: center; gap: 10px;
            font-size: 1.5rem; font-weight: 800; color: var(--text-dark);
            letter-spacing: -0.5px;
        }
        .logo i { color: var(--primary); font-size: 1.6rem; }
        .logo span { background: linear-gradient(135deg, var(--primary), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .logo:hover { opacity: 0.9; }

        .nav { display: flex; align-items: center; gap: 8px; }
        .nav a {
            padding: 8px 18px; border-radius: var(--radius-sm);
            font-size: 0.95rem; font-weight: 500; color: var(--text-main);
            transition: var(--transition); position: relative;
        }
        .nav a:hover { color: var(--primary); background: rgba(232, 168, 50, 0.08); }
        .nav a.active { color: var(--primary); background: rgba(232, 168, 50, 0.12); font-weight: 600; }
        .nav a.nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff; padding: 10px 24px; border-radius: var(--radius);
            font-weight: 600; box-shadow: 0 4px 14px rgba(232, 168, 50, 0.35);
        }
        .nav a.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(232, 168, 50, 0.45); color: #fff; }
        .nav a.nav-cta i { margin-right: 6px; }

        .hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; background: none; border: none; }
        .hamburger span { display: block; width: 26px; height: 3px; background: var(--text-dark); border-radius: 4px; transition: var(--transition); }
        .hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
        .hamburger.active span:nth-child(2) { opacity: 0; }
        .hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

        @media (max-width: 768px) {
            .hamburger { display: flex; }
            .nav { position: fixed; top: var(--header-height); left: 0; right: 0;
                    background: rgba(255, 255, 255, 0.98); backdrop-filter: blur(16px);
                    flex-direction: column; padding: 16px 24px;
                    border-bottom: 1px solid var(--border);
                    transform: translateY(-120%); opacity: 0; pointer-events: none;
                    transition: var(--transition); box-shadow: var(--shadow-md); }
            .nav.open { transform: translateY(0); opacity: 1; pointer-events: all; }
            .nav a { width: 100%; padding: 12px 16px; font-size: 1rem; }
            .nav a.nav-cta { text-align: center; }
        }

        /* ===== Article Hero Banner ===== */
        .article-hero {
            margin-top: var(--header-height);
            padding: 80px 0 60px;
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--secondary) 50%, var(--secondary-light) 100%);
            position: relative; overflow: hidden;
        }
        .article-hero::before {
            content: ''; position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.12; mix-blend-mode: overlay;
        }
        .article-hero .container { position: relative; z-index: 2; }
        .article-hero h1 {
            font-size: 2.4rem; color: var(--text-white); max-width: 800px;
            margin-bottom: 16px; line-height: 1.3;
            text-shadow: 0 2px 12px rgba(0,0,0,0.3);
        }
        .article-meta {
            display: flex; flex-wrap: wrap; gap: 16px 24px; align-items: center;
            color: rgba(255,255,255,0.75); font-size: 0.95rem;
        }
        .article-meta i { margin-right: 6px; color: var(--primary-light); }
        .article-meta .category-badge {
            display: inline-block; padding: 4px 14px; border-radius: 20px;
            background: var(--primary); color: #fff; font-size: 0.82rem; font-weight: 600;
        }

        @media (max-width: 768px) {
            .article-hero { padding: 60px 0 40px; }
            .article-hero h1 { font-size: 1.6rem; }
            .article-meta { gap: 10px 16px; font-size: 0.85rem; }
        }

        /* ===== Article Main Content ===== */
        .article-section { padding: 60px 0; }
        .article-layout { display: grid; grid-template-columns: 1fr 320px; gap: 48px; align-items: start; }
        .article-content {
            background: var(--bg-card); border-radius: var(--radius-lg);
            padding: 40px 44px; box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
        }
        .article-content .content-body { font-size: 1.05rem; line-height: 1.85; color: var(--text-main); }
        .article-content .content-body p { margin-bottom: 1.4em; }
        .article-content .content-body h2 { font-size: 1.6rem; margin: 1.6em 0 0.6em; padding-bottom: 8px; border-bottom: 2px solid var(--primary-light); }
        .article-content .content-body h3 { font-size: 1.25rem; margin: 1.4em 0 0.5em; }
        .article-content .content-body ul, .article-content .content-body ol { margin: 1em 0; padding-left: 24px; }
        .article-content .content-body li { margin-bottom: 0.5em; list-style: disc; }
        .article-content .content-body a { color: var(--primary); font-weight: 500; text-decoration: underline; }
        .article-content .content-body img { margin: 1.5em 0; border-radius: var(--radius); box-shadow: var(--shadow); }
        .article-content .content-body blockquote {
            border-left: 4px solid var(--primary); padding: 16px 20px; margin: 1.5em 0;
            background: var(--bg-light); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic; color: var(--text-light);
        }
        .article-content .content-body code { background: var(--bg-light); padding: 2px 8px; border-radius: 4px; font-size: 0.9em; }

        .article-not-found {
            text-align: center; padding: 80px 20px;
            background: var(--bg-card); border-radius: var(--radius-lg); box-shadow: var(--shadow);
        }
        .article-not-found i { font-size: 4rem; color: var(--text-light); margin-bottom: 20px; display: block; }
        .article-not-found h2 { font-size: 1.8rem; margin-bottom: 12px; }
        .article-not-found p { color: var(--text-light); margin-bottom: 24px; }
        .article-not-found a { display: inline-block; padding: 12px 32px; background: var(--primary); color: #fff; border-radius: var(--radius); font-weight: 600; }
        .article-not-found a:hover { background: var(--primary-dark); color: #fff; }

        /* ===== Sidebar ===== */
        .sidebar { display: flex; flex-direction: column; gap: 28px; }
        .sidebar-card {
            background: var(--bg-card); border-radius: var(--radius);
            padding: 24px 20px; box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
        }
        .sidebar-card h3 {
            font-size: 1.1rem; margin-bottom: 16px; padding-bottom: 10px;
            border-bottom: 2px solid var(--primary-light); display: flex; align-items: center; gap: 8px;
        }
        .sidebar-card h3 i { color: var(--primary); }
        .sidebar-link { display: flex; align-items: center; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--border-light); }
        .sidebar-link:last-child { border-bottom: none; }
        .sidebar-link img { width: 48px; height: 48px; border-radius: var(--radius-sm); object-fit: cover; flex-shrink: 0; }
        .sidebar-link div { flex: 1; min-width: 0; }
        .sidebar-link div a { font-weight: 600; font-size: 0.92rem; color: var(--text-dark); display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
        .sidebar-link div a:hover { color: var(--primary); }
        .sidebar-link div span { font-size: 0.8rem; color: var(--text-light); }

        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff; text-align: center; padding: 28px 20px;
        }
        .sidebar-cta h3 { color: #fff; border-bottom-color: rgba(255,255,255,0.3); }
        .sidebar-cta p { font-size: 0.92rem; opacity: 0.9; margin-bottom: 16px; }
        .sidebar-cta a {
            display: inline-block; padding: 10px 28px; background: #fff; color: var(--primary-dark);
            border-radius: var(--radius); font-weight: 700; font-size: 0.95rem;
        }
        .sidebar-cta a:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(0,0,0,0.15); color: var(--secondary); }

        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; gap: 32px; }
            .sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
            .sidebar-cta { grid-column: 1 / -1; }
        }
        @media (max-width: 640px) {
            .article-content { padding: 24px 18px; }
            .sidebar { grid-template-columns: 1fr; }
        }

        /* ===== Related Articles ===== */
        .related-section { padding: 60px 0; background: var(--bg-white); }
        .related-section h2 { text-align: center; font-size: 1.8rem; margin-bottom: 40px; }
        .related-section h2 span { color: var(--primary); }
        .related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
        .related-card {
            background: var(--bg-card); border-radius: var(--radius);
            overflow: hidden; box-shadow: var(--shadow); border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
        .related-card img { width: 100%; height: 180px; object-fit: cover; border-radius: 0; }
        .related-card .card-body { padding: 18px 20px; }
        .related-card .card-body h4 { font-size: 1rem; margin-bottom: 6px; }
        .related-card .card-body h4 a { color: var(--text-dark); }
        .related-card .card-body h4 a:hover { color: var(--primary); }
        .related-card .card-body p { font-size: 0.88rem; color: var(--text-light); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .related-card .card-meta { display: flex; justify-content: space-between; align-items: center; margin-top: 12px; font-size: 0.8rem; color: var(--text-light); }
        .related-card .card-meta .tag { display: inline-block; padding: 2px 10px; background: rgba(232,168,50,0.12); color: var(--primary-dark); border-radius: 12px; font-weight: 500; }

        @media (max-width: 900px) { .related-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 520px) { .related-grid { grid-template-columns: 1fr; } }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            padding: 14px 0; background: var(--bg-light);
            border-bottom: 1px solid var(--border-light);
            margin-top: var(--header-height);
        }
        .breadcrumb .container { display: flex; align-items: center; gap: 8px; font-size: 0.9rem; color: var(--text-light); flex-wrap: wrap; }
        .breadcrumb a { color: var(--text-light); }
        .breadcrumb a:hover { color: var(--primary); }
        .breadcrumb span { color: var(--text-main); font-weight: 500; }
        .breadcrumb i { font-size: 0.7rem; color: var(--text-light); }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark); color: rgba(255,255,255,0.8);
            padding: 60px 0 0; position: relative;
        }
        .footer::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: linear-gradient(90deg, var(--primary), var(--accent), var(--primary)); }
        .footer-grid { display: grid; grid-template-columns: 1.8fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
        .footer-brand .logo { color: #fff; margin-bottom: 16px; font-size: 1.4rem; }
        .footer-brand .logo i { color: var(--primary); }
        .footer-brand .logo span { -webkit-text-fill-color: #fff; background: none; }
        .footer-brand p { font-size: 0.92rem; line-height: 1.7; color: rgba(255,255,255,0.6); max-width: 360px; margin-bottom: 20px; }
        .footer-social { display: flex; gap: 12px; }
        .footer-social a {
            display: flex; align-items: center; justify-content: center;
            width: 40px; height: 40px; border-radius: 50%;
            background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.7);
            font-size: 1.2rem; transition: var(--transition);
        }
        .footer-social a:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
        .footer h4 { color: #fff; font-size: 1rem; margin-bottom: 16px; font-weight: 600; }
        .footer a { display: block; color: rgba(255,255,255,0.55); font-size: 0.92rem; padding: 4px 0; }
        .footer a:hover { color: var(--primary); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding: 20px 0; display: flex; justify-content: space-between;
            flex-wrap: wrap; gap: 8px; font-size: 0.85rem; color: rgba(255,255,255,0.4);
        }
        .footer-bottom a { display: inline; color: rgba(255,255,255,0.5); padding: 0; }
        .footer-bottom a:hover { color: var(--primary); padding: 0; }

        @media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; } }
        @media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; gap: 24px; } .footer-bottom { flex-direction: column; text-align: center; } }

        /* ===== Utility ===== */
        .text-center { text-align: center; }
        .mt-12 { margin-top: 12px; }
        .mb-8 { margin-bottom: 8px; }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #e8b830;
            --primary-dark: #d4a520;
            --primary-light: #f0d060;
            --secondary: #1a1a2e;
            --accent: #e85d3a;
            --bg-body: #0f0f1a;
            --bg-card: #1a1a2e;
            --bg-section: #151528;
            --bg-dark: #0a0a14;
            --text-primary: #f5f5f7;
            --text-secondary: #c0c0cc;
            --text-muted: #8888a0;
            --border-color: #2a2a44;
            --radius: 16px;
            --radius-sm: 8px;
            --radius-lg: 24px;
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
            --shadow-hover: 0 16px 48px rgba(232, 184, 48, 0.15);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            min-height: 100vh;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-light);
        }
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        button {
            cursor: pointer;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--text-primary);
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / Nav ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(15, 15, 26, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(42, 42, 68, 0.6);
            transition: background var(--transition), border-color var(--transition);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.5px;
            transition: opacity var(--transition);
        }
        .logo i {
            font-size: 28px;
            color: var(--primary);
            filter: drop-shadow(0 0 12px rgba(232, 184, 48, 0.3));
        }
        .logo span {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .logo:hover {
            opacity: 0.85;
        }

        .nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav a {
            padding: 8px 18px;
            border-radius: 100px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav a:hover {
            color: var(--text-primary);
            background: rgba(232, 184, 48, 0.08);
        }
        .nav a.active {
            color: var(--primary);
            background: rgba(232, 184, 48, 0.12);
            box-shadow: inset 0 0 0 1px rgba(232, 184, 48, 0.2);
        }
        .nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }
        .nav a.nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: var(--secondary);
            font-weight: 700;
            padding: 8px 22px;
            box-shadow: 0 4px 20px rgba(232, 184, 48, 0.3);
        }
        .nav a.nav-cta i {
            margin-right: 6px;
        }
        .nav a.nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(232, 184, 48, 0.4);
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
        }

        /* Mobile menu toggle */
        .menu-toggle {
            display: none;
            font-size: 26px;
            color: var(--text-primary);
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.05);
            transition: background var(--transition);
        }
        .menu-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        /* ===== Hero / Banner (内页) ===== */
        .page-hero {
            padding: 120px 0 72px;
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
            min-height: 360px;
            display: flex;
            align-items: center;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.25;
            filter: brightness(0.4) saturate(0.6);
        }
        .page-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 15, 26, 0.88) 0%, rgba(15, 15, 26, 0.4) 100%);
            z-index: 1;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-hero h1 {
            font-size: 48px;
            font-weight: 800;
            margin-bottom: 16px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .page-hero p {
            font-size: 20px;
            color: var(--text-secondary);
            max-width: 680px;
            margin: 0 auto 24px;
            font-weight: 400;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            border-radius: 100px;
            background: rgba(232, 184, 48, 0.12);
            border: 1px solid rgba(232, 184, 48, 0.2);
            font-size: 14px;
            color: var(--primary);
            font-weight: 500;
            margin-bottom: 20px;
        }
        .hero-badge i {
            font-size: 14px;
        }

        /* ===== Sections ===== */
        section {
            padding: 80px 0;
        }
        .section-title {
            font-size: 34px;
            font-weight: 800;
            text-align: center;
            margin-bottom: 12px;
        }
        .section-subtitle {
            font-size: 18px;
            color: var(--text-secondary);
            text-align: center;
            max-width: 600px;
            margin: 0 auto 48px;
            font-weight: 400;
        }
        .section-title span {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .bg-card-light {
            background: var(--bg-section);
        }
        .bg-dark-full {
            background: var(--bg-dark);
        }

        /* ===== Category Grid ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .category-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .category-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--primary-light));
            opacity: 0;
            transition: opacity var(--transition);
        }
        .category-card:hover::before {
            opacity: 1;
        }
        .category-card:hover {
            border-color: rgba(232, 184, 48, 0.3);
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .category-card .icon {
            font-size: 44px;
            color: var(--primary);
            margin-bottom: 18px;
            display: inline-block;
            filter: drop-shadow(0 0 16px rgba(232, 184, 48, 0.15));
        }
        .category-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .category-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }
        .category-card .tag {
            display: inline-block;
            margin-top: 16px;
            padding: 4px 14px;
            border-radius: 100px;
            background: rgba(232, 184, 48, 0.08);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
        }

        /* ===== Guide Cards ===== */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .guide-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
        }
        .guide-card:hover {
            transform: translateY(-6px);
            border-color: rgba(232, 184, 48, 0.25);
            box-shadow: var(--shadow-hover);
        }
        .guide-card .card-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .guide-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .guide-card:hover .card-img img {
            transform: scale(1.05);
        }
        .guide-card .card-img .badge {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 4px 14px;
            border-radius: 100px;
            background: rgba(232, 184, 48, 0.9);
            color: var(--secondary);
            font-size: 12px;
            font-weight: 700;
            backdrop-filter: blur(4px);
        }
        .guide-card .card-body {
            padding: 22px 24px 26px;
        }
        .guide-card .card-body h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .guide-card .card-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .guide-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-muted);
        }
        .guide-card .card-meta i {
            margin-right: 4px;
        }
        .guide-card .card-meta .read-more {
            color: var(--primary);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 4px;
            transition: gap var(--transition);
        }
        .guide-card .card-meta .read-more:hover {
            gap: 8px;
        }

        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stat-item {
            padding: 32px 16px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
        }
        .stat-item .num {
            font-size: 40px;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .stat-item .label {
            font-size: 15px;
            color: var(--text-secondary);
            margin-top: 6px;
        }

        /* ===== Steps / Process ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            counter-reset: step;
        }
        .step-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 36px 28px;
            position: relative;
            text-align: center;
            transition: all var(--transition);
        }
        .step-card:hover {
            border-color: rgba(232, 184, 48, 0.25);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .step-card .step-num {
            width: 48px;
            height: 48px;
            line-height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: var(--secondary);
            font-size: 20px;
            font-weight: 800;
            margin: 0 auto 18px;
            box-shadow: 0 4px 20px rgba(232, 184, 48, 0.25);
        }
        .step-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .step-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: border-color var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(232, 184, 48, 0.15);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            gap: 16px;
            transition: background var(--transition);
        }
        .faq-question:hover {
            background: rgba(232, 184, 48, 0.04);
        }
        .faq-question i {
            font-size: 18px;
            color: var(--primary);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
            text-align: center;
            padding: 80px 0;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.15;
            filter: brightness(0.3);
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 38px;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .cta-section h2 span {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .cta-section p {
            font-size: 18px;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto 32px;
        }
        .cta-buttons {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            border-radius: 100px;
            font-size: 17px;
            font-weight: 700;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: var(--secondary);
            box-shadow: 0 6px 24px rgba(232, 184, 48, 0.3);
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(232, 184, 48, 0.4);
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            color: var(--secondary);
        }
        .btn-outline {
            border: 2px solid var(--border-color);
            color: var(--text-primary);
            background: transparent;
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(232, 184, 48, 0.08);
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            font-size: 20px;
            margin-bottom: 16px;
            display: inline-flex;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 18px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            font-size: 18px;
            transition: all var(--transition);
            border: 1px solid transparent;
        }
        .footer-social a:hover {
            background: rgba(232, 184, 48, 0.12);
            color: var(--primary);
            border-color: rgba(232, 184, 48, 0.2);
            transform: translateY(-2px);
        }
        .footer h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
            color: var(--text-primary);
        }
        .footer a:not(.logo):not(.footer-social a) {
            display: block;
            font-size: 14px;
            color: var(--text-muted);
            padding: 5px 0;
            transition: color var(--transition);
        }
        .footer a:not(.logo):not(.footer-social a):hover {
            color: var(--primary);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding: 24px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: var(--text-muted) !important;
            display: inline !important;
            padding: 0 !important;
        }
        .footer-bottom a:hover {
            color: var(--primary) !important;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .guide-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .page-hero h1 {
                font-size: 32px;
            }
            .page-hero p {
                font-size: 16px;
            }
            .section-title {
                font-size: 26px;
            }
            .section-subtitle {
                font-size: 15px;
                margin-bottom: 32px;
            }
            section {
                padding: 56px 0;
            }
            .guide-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-item .num {
                font-size: 30px;
            }
            .cta-section h2 {
                font-size: 28px;
            }
            .cta-buttons .btn {
                padding: 12px 28px;
                font-size: 15px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            /* Mobile nav */
            .nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(15, 15, 26, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px 28px;
                gap: 6px;
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-120%);
                opacity: 0;
                transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
                pointer-events: none;
                box-shadow: 0 24px 48px rgba(0, 0, 0, 0.6);
            }
            .nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav a {
                width: 100%;
                text-align: center;
                padding: 12px 18px;
                font-size: 16px;
            }
            .nav a.active::after {
                display: none;
            }
            .nav a.nav-cta {
                margin-top: 8px;
            }
            .menu-toggle {
                display: block;
            }
            .category-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .category-card {
                padding: 24px 16px;
            }
            .category-card .icon {
                font-size: 34px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .page-hero {
                padding: 100px 0 48px;
                min-height: 280px;
            }
            .page-hero h1 {
                font-size: 26px;
            }
            .category-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-item {
                padding: 20px 12px;
            }
            .stat-item .num {
                font-size: 26px;
            }
            .guide-card .card-body {
                padding: 18px 18px 22px;
            }
            .step-card {
                padding: 24px 18px;
            }
            .faq-question {
                padding: 14px 18px;
                font-size: 15px;
            }
            .faq-answer {
                padding: 0 18px 14px;
                font-size: 14px;
            }
            .btn {
                padding: 12px 24px;
                font-size: 15px;
                width: 100%;
                justify-content: center;
            }
            .cta-buttons {
                flex-direction: column;
                width: 100%;
            }
        }