/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1e3a5f;
            --primary-light: #2a5298;
            --primary-dark: #0f2440;
            --secondary: #e85d3a;
            --secondary-light: #f07a5c;
            --secondary-dark: #c94424;
            --accent: #f5b041;
            --bg-light: #f5f7fa;
            --bg-white: #ffffff;
            --bg-dark: #0f2440;
            --text-primary: #1a1a2e;
            --text-secondary: #4a5a72;
            --text-light: #8a9bb0;
            --text-white: #ffffff;
            --border: #e2e8f0;
            --border-light: #f0f2f5;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 8px 30px rgba(0,0,0,0.08);
            --shadow-lg: 0 20px 60px rgba(0,0,0,0.12);
            --shadow-hover: 0 12px 40px rgba(0,0,0,0.15);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --max-width: 1200px;
            --header-height: 80px;
            --topbar-height: 40px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--secondary); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        ul, ol { list-style: none; }
        button, input, textarea, select { font-family: inherit; font-size: inherit; outline: none; border: none; }
        button { cursor: pointer; background: none; }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section { padding: 80px 0; }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            font-size: 36px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.5px;
            margin-bottom: 12px;
        }
        .section-title p {
            font-size: 18px;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }
        .section-title .badge {
            display: inline-block;
            background: var(--secondary);
            color: #fff;
            padding: 4px 18px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }

        /* ===== Top Bar ===== */
        .topbar {
            background: var(--primary-dark);
            color: rgba(255,255,255,0.85);
            font-size: 13px;
            height: var(--topbar-height);
            display: flex;
            align-items: center;
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }
        .topbar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .topbar-left { display: flex; align-items: center; gap: 20px; }
        .topbar-left span { opacity: 0.7; }
        .topbar-left i { margin-right: 6px; font-size: 12px; }
        .topbar-right { display: flex; align-items: center; gap: 16px; }
        .topbar-right a {
            color: rgba(255,255,255,0.75);
            font-size: 13px;
            transition: var(--transition);
        }
        .topbar-right a:hover { color: var(--accent); }
        .topbar-right .divider { width: 1px; height: 16px; background: rgba(255,255,255,0.15); }

        /* ===== Header / Nav ===== */
        .header {
            background: var(--bg-white);
            height: var(--header-height);
            box-shadow: 0 2px 20px rgba(0,0,0,0.06);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--border-light);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 28px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .logo i {
            color: var(--secondary);
            font-size: 32px;
        }
        .logo:hover { color: var(--primary); }
        .logo span { color: var(--secondary); }
        .nav { display: flex; align-items: center; gap: 4px; }
        .nav a {
            padding: 8px 20px;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }
        .nav a:hover { color: var(--primary); background: rgba(30,58,95,0.06); }
        .nav a.active {
            color: var(--bg-white);
            background: var(--primary);
        }
        .nav a.active:hover { background: var(--primary-light); }
        .nav-cta {
            background: var(--secondary) !important;
            color: #fff !important;
            padding: 10px 28px !important;
            border-radius: 50px !important;
            font-weight: 600 !important;
            margin-left: 8px;
            box-shadow: 0 4px 15px rgba(232,93,58,0.3);
        }
        .nav-cta:hover {
            background: var(--secondary-dark) !important;
            box-shadow: 0 6px 25px rgba(232,93,58,0.4) !important;
            transform: translateY(-1px);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 8px;
            background: none;
            border: none;
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--primary);
            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); }

        /* ===== Mobile Nav ===== */
        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            background: var(--bg-white);
            box-shadow: var(--shadow-lg);
            z-index: 999;
            padding: 20px 24px;
            border-top: 1px solid var(--border-light);
            transform: translateY(-10px);
            opacity: 0;
            transition: var(--transition);
            pointer-events: none;
        }
        .mobile-nav.open {
            transform: translateY(0);
            opacity: 1;
            pointer-events: auto;
        }
        .mobile-nav a {
            display: block;
            padding: 14px 16px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .mobile-nav a:hover { background: rgba(30,58,95,0.06); color: var(--primary); }
        .mobile-nav a.active { color: var(--secondary); font-weight: 600; }
        .mobile-nav .nav-cta-mobile {
            background: var(--secondary);
            color: #fff !important;
            text-align: center;
            margin-top: 8px;
            border-radius: var(--radius-md);
        }
        .mobile-nav .nav-cta-mobile:hover { background: var(--secondary-dark); }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 80vh;
            display: flex;
            align-items: center;
            background: var(--primary-dark);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,36,64,0.85) 0%, rgba(30,58,95,0.7) 50%, rgba(232,93,58,0.25) 100%);
            z-index: 1;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(to top, var(--bg-light), transparent);
            z-index: 2;
        }
        .hero .container {
            position: relative;
            z-index: 3;
            padding-top: 40px;
            padding-bottom: 80px;
        }
        .hero-content { max-width: 700px; }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255,255,255,0.12);
            backdrop-filter: blur(10px);
            padding: 6px 18px 6px 12px;
            border-radius: 50px;
            color: var(--accent);
            font-size: 14px;
            font-weight: 500;
            margin-bottom: 24px;
            border: 1px solid rgba(255,255,255,0.08);
        }
        .hero-badge i { font-size: 14px; }
        .hero h1 {
            font-size: 52px;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.15;
            letter-spacing: -1px;
            margin-bottom: 20px;
        }
        .hero h1 span { color: var(--accent); position: relative; }
        .hero h1 span::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--secondary);
            border-radius: 4px;
            opacity: 0.6;
        }
        .hero p {
            font-size: 20px;
            color: rgba(255,255,255,0.8);
            line-height: 1.7;
            margin-bottom: 36px;
            max-width: 580px;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 34px;
            border-radius: 50px;
            font-size: 16px;
            font-weight: 600;
            transition: var(--transition);
            border: 2px solid transparent;
            line-height: 1.2;
        }
        .btn-primary {
            background: var(--secondary);
            color: #fff !important;
            border-color: var(--secondary);
            box-shadow: 0 8px 30px rgba(232,93,58,0.35);
        }
        .btn-primary:hover {
            background: var(--secondary-dark);
            border-color: var(--secondary-dark);
            box-shadow: 0 12px 40px rgba(232,93,58,0.45);
            transform: translateY(-2px);
        }
        .btn-outline {
            background: transparent;
            color: #fff !important;
            border-color: rgba(255,255,255,0.4);
        }
        .btn-outline:hover {
            background: rgba(255,255,255,0.1);
            border-color: #fff;
            transform: translateY(-2px);
        }
        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid rgba(255,255,255,0.1);
        }
        .hero-stat h3 {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            line-height: 1.1;
        }
        .hero-stat h3 small { font-size: 16px; font-weight: 400; opacity: 0.7; margin-left: 4px; }
        .hero-stat p {
            font-size: 14px;
            color: rgba(255,255,255,0.6);
            margin-top: 4px;
            margin-bottom: 0;
        }

        /* ===== About / Intro ===== */
        .about-section {
            background: var(--bg-white);
        }
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }
        .about-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }
        .about-image img { width: 100%; height: auto; transition: var(--transition); }
        .about-image:hover img { transform: scale(1.03); }
        .about-image .play-badge {
            position: absolute;
            bottom: 20px;
            left: 20px;
            background: rgba(0,0,0,0.6);
            backdrop-filter: blur(8px);
            color: #fff;
            padding: 10px 20px;
            border-radius: 50px;
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
            border: 1px solid rgba(255,255,255,0.1);
        }
        .about-text h3 {
            font-size: 14px;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--secondary);
            font-weight: 600;
            margin-bottom: 8px;
        }
        .about-text h2 {
            font-size: 36px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.25;
            margin-bottom: 20px;
        }
        .about-text p {
            color: var(--text-secondary);
            font-size: 17px;
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .about-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-top: 28px;
        }
        .about-feature {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            background: var(--bg-light);
            border-radius: var(--radius-sm);
        }
        .about-feature i {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            font-size: 14px;
            flex-shrink: 0;
        }
        .about-feature span { font-size: 15px; font-weight: 500; color: var(--text-primary); }

        /* ===== Categories ===== */
        .categories-section {
            background: var(--bg-light);
        }
        .categories-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }
        .category-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            cursor: pointer;
            border: 1px solid var(--border-light);
        }
        .category-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
        }
        .category-card .card-image {
            height: 240px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .category-card .card-image .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(0,0,0,0.6), transparent);
        }
        .category-card .card-image .tag {
            position: absolute;
            top: 20px;
            left: 20px;
            background: var(--secondary);
            color: #fff;
            padding: 4px 16px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 500;
        }
        .category-card .card-body {
            padding: 28px;
        }
        .category-card .card-body h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .category-card .card-body p {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .category-card .card-body .btn-link {
            color: var(--secondary);
            font-weight: 600;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .category-card .card-body .btn-link:hover { gap: 12px; color: var(--secondary-dark); }

        /* ===== Latest Posts (CMS) ===== */
        .posts-section {
            background: var(--bg-white);
        }
        .posts-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .post-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
        }
        .post-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .post-card .post-image {
            height: 200px;
            background-size: cover;
            background-position: center;
            position: relative;
            flex-shrink: 0;
        }
        .post-card .post-image .post-cat {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--primary);
            color: #fff;
            padding: 3px 14px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 500;
        }
        .post-card .post-body {
            padding: 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .post-card .post-body .post-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-light);
            margin-bottom: 10px;
        }
        .post-card .post-body .post-meta i { margin-right: 4px; font-size: 12px; }
        .post-card .post-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.4;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-card .post-body h3 a { color: inherit; }
        .post-card .post-body h3 a:hover { color: var(--secondary); }
        .post-card .post-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 16px;
        }
        .post-card .post-body .post-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 14px;
            border-top: 1px solid var(--border-light);
        }
        .post-card .post-body .post-footer .read-more {
            font-size: 14px;
            font-weight: 600;
            color: var(--secondary);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .post-card .post-body .post-footer .read-more:hover { gap: 10px; }
        .post-card .post-body .post-footer .date { font-size: 13px; color: var(--text-light); }
        .empty-posts {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            color: var(--text-light);
            font-size: 18px;
        }
        .empty-posts i { font-size: 48px; display: block; margin-bottom: 16px; opacity: 0.4; }

        /* ===== Stats / Data ===== */
        .stats-section {
            background: var(--primary-dark);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            position: relative;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(15,36,64,0.85);
        }
        .stats-section .container { position: relative; z-index: 1; }
        .stats-section .section-title h2 { color: #fff; }
        .stats-section .section-title p { color: rgba(255,255,255,0.7); }
        .stats-section .section-title .badge { background: var(--accent); color: var(--primary-dark); }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
        }
        .stat-item {
            text-align: center;
            padding: 36px 20px;
            background: rgba(255,255,255,0.06);
            backdrop-filter: blur(10px);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255,255,255,0.08);
            transition: var(--transition);
        }
        .stat-item:hover { background: rgba(255,255,255,0.1); transform: translateY(-4px); }
        .stat-item i {
            font-size: 36px;
            color: var(--accent);
            margin-bottom: 16px;
        }
        .stat-item h3 {
            font-size: 42px;
            font-weight: 800;
            color: #fff;
            line-height: 1.1;
            margin-bottom: 6px;
        }
        .stat-item p {
            font-size: 15px;
            color: rgba(255,255,255,0.65);
        }

        /* ===== Features / Process ===== */
        .features-section {
            background: var(--bg-white);
        }
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .feature-card {
            text-align: center;
            padding: 40px 28px;
            background: var(--bg-light);
            border-radius: var(--radius-md);
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }
        .feature-card:hover {
            background: var(--bg-white);
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .feature-card .icon {
            width: 72px;
            height: 72px;
            margin: 0 auto 20px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            color: #fff;
            box-shadow: 0 8px 25px rgba(30,58,95,0.2);
        }
        .feature-card .icon.alt { background: linear-gradient(135deg, var(--secondary), var(--secondary-light)); box-shadow: 0 8px 25px rgba(232,93,58,0.2); }
        .feature-card .icon.alt2 { background: linear-gradient(135deg, var(--accent), #f7c948); box-shadow: 0 8px 25px rgba(245,176,65,0.2); }
        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .feature-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-light);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { box-shadow: var(--shadow-md); }
        .faq-question {
            padding: 20px 28px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            transition: var(--transition);
            user-select: none;
        }
        .faq-question i {
            font-size: 16px;
            color: var(--secondary);
            transition: var(--transition);
        }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-item.open .faq-question { color: var(--secondary); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 28px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 28px 24px;
        }
        .faq-answer p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary);
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            position: relative;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(30,58,95,0.92), rgba(232,93,58,0.5));
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 80px 24px;
        }
        .cta-section h2 {
            font-size: 38px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 18px;
            color: rgba(255,255,255,0.8);
            max-width: 600px;
            margin: 0 auto 32px;
        }
        .cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
        .cta-actions .btn-primary {
            background: var(--accent);
            border-color: var(--accent);
            color: var(--primary-dark) !important;
            box-shadow: 0 8px 30px rgba(245,176,65,0.35);
        }
        .cta-actions .btn-primary:hover {
            background: #f0a832;
            border-color: #f0a832;
            box-shadow: 0 12px 40px rgba(245,176,65,0.45);
        }
        .cta-actions .btn-outline {
            border-color: rgba(255,255,255,0.4);
        }
        .cta-actions .btn-outline:hover { border-color: #fff; background: rgba(255,255,255,0.1); }

        /* ===== Footer ===== */
        .footer {
            background: var(--primary-dark);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }
        .footer-brand .logo {
            color: #fff;
            font-size: 24px;
            margin-bottom: 16px;
        }
        .footer-brand .logo i { font-size: 28px; }
        .footer-brand p {
            font-size: 15px;
            line-height: 1.8;
            color: rgba(255,255,255,0.6);
            max-width: 320px;
            margin-bottom: 20px;
        }
        .footer-social { display: flex; gap: 12px; }
        .footer-social a {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255,255,255,0.06);
            border-radius: 50%;
            color: rgba(255,255,255,0.7);
            transition: var(--transition);
            font-size: 16px;
        }
        .footer-social a:hover { background: var(--secondary); color: #fff; transform: translateY(-3px); }
        .footer-col h4 {
            color: #fff;
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 20px;
        }
        .footer-col a {
            display: block;
            color: rgba(255,255,255,0.55);
            font-size: 15px;
            padding: 6px 0;
            transition: var(--transition);
        }
        .footer-col a:hover { color: var(--accent); padding-left: 4px; }
        .footer-bottom {
            padding: 24px 0;
            text-align: center;
            font-size: 14px;
            color: rgba(255,255,255,0.4);
        }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: var(--accent); }
        .footer-bottom .sep { margin: 0 12px; opacity: 0.3; }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero h1 { font-size: 42px; }
            .about-grid { gap: 40px; }
            .posts-grid { 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) {
            .section { padding: 60px 0; }
            .section-title { margin-bottom: 36px; }
            .section-title h2 { font-size: 28px; }
            .section-title p { font-size: 16px; }
            .topbar { font-size: 12px; height: auto; padding: 8px 0; }
            .topbar .container { flex-direction: column; gap: 4px; }
            .topbar-right { display: none; }
            .header { height: 64px; }
            .logo { font-size: 22px; }
            .logo i { font-size: 24px; }
            .nav { display: none; }
            .hamburger { display: flex; }
            .mobile-nav { display: block; }
            .hero { min-height: auto; padding: 60px 0 40px; }
            .hero h1 { font-size: 32px; }
            .hero p { font-size: 17px; }
            .hero-actions { flex-direction: column; }
            .hero-actions .btn { justify-content: center; }
            .hero-stats { flex-wrap: wrap; gap: 24px; }
            .hero-stat h3 { font-size: 28px; }
            .about-grid { grid-template-columns: 1fr; gap: 30px; }
            .about-text h2 { font-size: 28px; }
            .about-features { grid-template-columns: 1fr; }
            .categories-grid { grid-template-columns: 1fr; }
            .category-card .card-image { height: 180px; }
            .posts-grid { grid-template-columns: 1fr; }
            .post-card .post-image { height: 180px; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .stat-item { padding: 24px 16px; }
            .stat-item h3 { font-size: 32px; }
            .features-grid { grid-template-columns: 1fr; }
            .feature-card { padding: 30px 20px; }
            .cta-section h2 { font-size: 28px; }
            .cta-section p { font-size: 16px; }
            .footer-grid { grid-template-columns: 1fr; gap: 30px; }
            .footer-brand p { max-width: 100%; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .hero h1 { font-size: 26px; }
            .hero p { font-size: 15px; }
            .hero-stats { flex-direction: column; gap: 16px; }
            .stats-grid { grid-template-columns: 1fr; }
            .section-title h2 { font-size: 24px; }
            .faq-question { font-size: 15px; padding: 16px 20px; }
            .faq-answer { padding: 0 20px; }
            .faq-item.open .faq-answer { padding: 0 20px 20px; }
            .cta-section h2 { font-size: 24px; }
            .btn { padding: 12px 24px; font-size: 15px; }
        }

        /* ===== Smooth reveal animation ===== */
        .reveal {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.7s ease, transform 0.7s ease;
        }
        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #f1c0c3;
            --secondary: #1d3557;
            --secondary-light: #457b9d;
            --accent: #f4a261;
            --bg: #f8f9fa;
            --bg-alt: #ffffff;
            --bg-dark: #1d3557;
            --text: #1a1a2e;
            --text-light: #6c757d;
            --text-white: #ffffff;
            --border: #e0e0e0;
            --border-light: #f0f0f0;
            --radius: 12px;
            --radius-sm: 6px;
            --radius-lg: 20px;
            --shadow: 0 4px 20px rgba(0,0,0,0.06);
            --shadow-hover: 0 12px 40px rgba(0,0,0,0.12);
            --shadow-btn: 0 4px 14px rgba(230,57,70,0.25);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --max-width: 1200px;
            --header-height: 80px;
            --topbar-height: 40px;
        }

        /* ===== Reset & Base ===== */
        *, *::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 { text-decoration: none; color: inherit; transition: var(--transition); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius); }
        button, input, textarea { font-family: inherit; font-size: inherit; border: none; outline: none; transition: var(--transition); }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text); }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Top Bar ===== */
        .topbar {
            background: var(--secondary);
            color: rgba(255,255,255,0.85);
            font-size: 13px;
            height: var(--topbar-height);
            display: flex;
            align-items: center;
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }
        .topbar .container { display: flex; justify-content: space-between; align-items: center; }
        .topbar a { color: rgba(255,255,255,0.85); margin: 0 12px 0 0; font-size: 13px; }
        .topbar a:hover { color: #fff; }
        .topbar .topbar-right { display: flex; align-items: center; gap: 16px; }
        .topbar .topbar-right span { opacity: 0.7; }
        .topbar .topbar-right i { margin-right: 4px; }

        /* ===== Header & Nav ===== */
        .header {
            background: var(--bg-alt);
            box-shadow: 0 2px 16px rgba(0,0,0,0.04);
            position: sticky;
            top: 0;
            z-index: 1000;
            height: var(--header-height);
            display: flex;
            align-items: center;
            border-bottom: 1px solid var(--border-light);
        }
        .header .container { display: flex; align-items: center; justify-content: space-between; }
        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 24px;
            font-weight: 800;
            color: var(--text);
            letter-spacing: -0.5px;
        }
        .logo i { color: var(--primary); font-size: 28px; }
        .logo span { color: var(--primary); }
        .nav { display: flex; align-items: center; gap: 6px; }
        .nav a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            transition: var(--transition);
            position: relative;
        }
        .nav a:hover { color: var(--primary); background: rgba(230,57,70,0.05); }
        .nav a.active { color: var(--primary); background: rgba(230,57,70,0.08); font-weight: 600; }
        .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: var(--primary);
            color: #fff;
            padding: 8px 22px;
            border-radius: 50px;
            font-weight: 600;
            box-shadow: var(--shadow-btn);
            margin-left: 8px;
        }
        .nav a.nav-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230,57,70,0.35);
        }
        .nav a.nav-cta i { margin-right: 6px; font-size: 13px; }
        .nav-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 6px; background: none; }
        .nav-toggle span { width: 26px; height: 3px; background: var(--text); border-radius: 4px; transition: var(--transition); }

        /* ===== Article Banner ===== */
        .article-banner {
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            padding: 80px 0 60px;
            color: var(--text-white);
            position: relative;
        }
        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(29,53,87,0.88) 0%, rgba(29,53,87,0.65) 100%);
        }
        .article-banner .container { position: relative; z-index: 1; }
        .article-banner .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255,255,255,0.7);
            margin-bottom: 20px;
        }
        .article-banner .breadcrumb a { color: rgba(255,255,255,0.7); }
        .article-banner .breadcrumb a:hover { color: #fff; }
        .article-banner .breadcrumb .sep { opacity: 0.4; }
        .article-banner h1 {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            max-width: 800px;
            line-height: 1.25;
            margin-bottom: 16px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            align-items: center;
            font-size: 14px;
            color: rgba(255,255,255,0.8);
        }
        .article-meta .tag {
            background: var(--primary);
            color: #fff;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 500;
        }
        .article-meta i { margin-right: 6px; opacity: 0.7; }

        /* ===== Article Main ===== */
        .article-main {
            padding: 60px 0 80px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 48px;
        }
        .article-content {
            background: var(--bg-alt);
            border-radius: var(--radius);
            padding: 40px 44px;
            box-shadow: var(--shadow);
        }
        .article-content .featured-img {
            width: 100%;
            border-radius: var(--radius);
            margin-bottom: 32px;
            object-fit: cover;
            max-height: 480px;
        }
        .article-content .body-text {
            font-size: 16.5px;
            line-height: 1.85;
            color: var(--text);
        }
        .article-content .body-text p {
            margin-bottom: 20px;
        }
        .article-content .body-text h2 {
            font-size: 24px;
            margin: 36px 0 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary-light);
        }
        .article-content .body-text h3 {
            font-size: 20px;
            margin: 28px 0 12px;
        }
        .article-content .body-text ul, .article-content .body-text ol {
            margin: 16px 0 20px;
            padding-left: 24px;
        }
        .article-content .body-text li {
            margin-bottom: 8px;
            list-style: disc;
        }
        .article-content .body-text blockquote {
            border-left: 4px solid var(--primary);
            background: rgba(230,57,70,0.04);
            padding: 16px 24px;
            margin: 24px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-light);
        }
        .article-content .body-text a {
            color: var(--primary);
            text-decoration: underline;
        }
        .article-content .body-text a:hover { color: var(--primary-dark); }
        .article-content .body-text img {
            border-radius: var(--radius);
            margin: 24px 0;
            width: 100%;
        }

        /* ===== Article Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 32px;
        }
        .sidebar-card {
            background: var(--bg-alt);
            border-radius: var(--radius);
            padding: 28px;
            box-shadow: var(--shadow);
        }
        .sidebar-card h3 {
            font-size: 18px;
            margin-bottom: 18px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--primary-light);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h3 i { color: var(--primary); }
        .sidebar-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
        }
        .sidebar-list li:last-child { border-bottom: none; }
        .sidebar-list a {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            font-size: 14px;
            line-height: 1.5;
            color: var(--text);
        }
        .sidebar-list a:hover { color: var(--primary); }
        .sidebar-list a img {
            width: 60px;
            height: 60px;
            object-fit: cover;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
        }
        .sidebar-list a .side-title {
            font-weight: 600;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .sidebar-list a .side-date {
            font-size: 12px;
            color: var(--text-light);
            margin-top: 4px;
        }
        .sidebar-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .sidebar-tags a {
            background: var(--bg);
            color: var(--text);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 500;
            border: 1px solid var(--border);
        }
        .sidebar-tags a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .sidebar-cta {
            background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-light) 100%);
            color: #fff;
            padding: 28px;
            border-radius: var(--radius);
            text-align: center;
        }
        .sidebar-cta h4 { color: #fff; font-size: 20px; margin-bottom: 10px; }
        .sidebar-cta p { font-size: 14px; opacity: 0.85; margin-bottom: 18px; }
        .sidebar-cta .btn-light {
            background: #fff;
            color: var(--secondary);
            padding: 10px 28px;
            border-radius: 50px;
            font-weight: 600;
            display: inline-block;
        }
        .sidebar-cta .btn-light:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== Article Nav (prev/next) ===== */
        .article-nav {
            display: flex;
            justify-content: space-between;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid var(--border-light);
            gap: 20px;
        }
        .article-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            padding: 12px 20px;
            border-radius: var(--radius-sm);
            background: var(--bg);
            transition: var(--transition);
            max-width: 45%;
        }
        .article-nav a:hover { background: var(--primary); color: #fff; }
        .article-nav a i { font-size: 18px; }
        .article-nav .nav-next { text-align: right; flex-direction: row-reverse; }

        /* ===== Related Posts ===== */
        .related-section {
            margin-top: 60px;
        }
        .related-section h2 {
            font-size: 24px;
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .related-section h2 i { color: var(--primary); }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--bg-alt);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .related-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .related-card .card-body {
            padding: 20px;
        }
        .related-card .card-body h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-body p {
            font-size: 13px;
            color: var(--text-light);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-body .meta {
            font-size: 12px;
            color: var(--text-light);
            margin-top: 10px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .related-card .card-body .meta .tag-sm {
            background: var(--primary-light);
            color: var(--primary-dark);
            padding: 2px 10px;
            border-radius: 50px;
            font-size: 11px;
            font-weight: 600;
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.85);
            padding: 60px 0 0;
        }
        .footer .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer .logo { color: #fff; font-size: 22px; }
        .footer .logo i { color: var(--primary); }
        .footer .logo span { color: var(--primary); }
        .footer-brand p { font-size: 14px; margin: 16px 0 20px; line-height: 1.7; opacity: 0.75; }
        .footer-social { display: flex; gap: 14px; }
        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255,255,255,0.7);
            font-size: 18px;
            transition: var(--transition);
        }
        .footer-social a:hover { background: var(--primary); color: #fff; transform: translateY(-3px); }
        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 30px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }
        .footer-col a {
            display: block;
            color: rgba(255,255,255,0.7);
            font-size: 14px;
            padding: 6px 0;
            transition: var(--transition);
        }
        .footer-col a:hover { color: #fff; padding-left: 6px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding: 24px 0;
            font-size: 13px;
            text-align: center;
            color: rgba(255,255,255,0.5);
        }
        .footer-bottom a { color: rgba(255,255,255,0.6); }
        .footer-bottom a:hover { color: #fff; }
        .footer-bottom .sep { margin: 0 10px; opacity: 0.3; }

        /* ===== Not Found ===== */
        .not-found-box {
            text-align: center;
            padding: 80px 40px;
            background: var(--bg-alt);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .not-found-box i { font-size: 64px; color: var(--primary-light); margin-bottom: 20px; }
        .not-found-box h2 { font-size: 28px; margin-bottom: 12px; }
        .not-found-box p { color: var(--text-light); margin-bottom: 24px; }
        .not-found-box a { color: var(--primary); font-weight: 600; }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; }
            .article-sidebar { order: -1; display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
            .sidebar-cta { grid-column: 1 / -1; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            :root { --header-height: 64px; --topbar-height: 36px; }
            .topbar .topbar-right span { display: none; }
            .nav { display: none; position: absolute; top: var(--header-height); left: 0; right: 0; background: var(--bg-alt); flex-direction: column; padding: 16px 24px; box-shadow: 0 8px 30px rgba(0,0,0,0.1); border-radius: 0 0 var(--radius) var(--radius); }
            .nav.open { display: flex; }
            .nav a { width: 100%; padding: 12px 16px; }
            .nav a.nav-cta { margin-left: 0; text-align: center; }
            .nav-toggle { display: flex; }
            .article-banner { padding: 50px 0 40px; }
            .article-banner h1 { font-size: 26px; }
            .article-content { padding: 24px; }
            .article-content .body-text { font-size: 15px; }
            .article-sidebar { grid-template-columns: 1fr; }
            .related-grid { grid-template-columns: 1fr; }
            .footer .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
            .article-nav { flex-direction: column; }
            .article-nav a { max-width: 100%; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .article-banner h1 { font-size: 22px; }
            .article-meta { gap: 12px; font-size: 13px; }
            .article-content { padding: 16px; }
            .footer .footer-grid { grid-template-columns: 1fr; }
            .footer-bottom { font-size: 12px; }
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #0f1e2e;
            --primary-light: #1a2f44;
            --accent: #e63946;
            --accent-hover: #c5303c;
            --accent-light: #ff6b7a;
            --gold: #f4a261;
            --gold-light: #f9c48a;
            --bg: #f4f6f8;
            --bg-white: #ffffff;
            --bg-dark: #0a1628;
            --text: #1a1a2e;
            --text-light: #5a6a7a;
            --text-white: #f0f4f8;
            --border: #e2e8f0;
            --radius: 14px;
            --radius-sm: 8px;
            --radius-lg: 24px;
            --shadow: 0 10px 40px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 20px 60px rgba(0, 0, 0, 0.10);
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.04);
            --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --container: 1200px;
            --nav-height: 72px;
            --topbar-height: 44px;
        }

        /* ===== 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);
            background: var(--bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }
        button {
            cursor: pointer;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            font-weight: 700;
            color: var(--text);
        }
        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Top Bar ===== */
        .topbar {
            background: var(--primary);
            color: var(--text-white);
            font-size: 13px;
            height: var(--topbar-height);
            display: flex;
            align-items: center;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .topbar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .topbar-left {
            display: flex;
            align-items: center;
            gap: 18px;
        }
        .topbar-left span {
            opacity: 0.8;
            font-size: 13px;
        }
        .topbar-left i {
            margin-right: 6px;
            color: var(--gold);
        }
        .topbar-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .topbar-right a {
            opacity: 0.8;
            font-size: 13px;
            transition: opacity var(--transition);
        }
        .topbar-right a:hover {
            opacity: 1;
            color: var(--gold);
        }
        .topbar-right .domain-badge {
            background: rgba(255, 255, 255, 0.08);
            padding: 2px 12px;
            border-radius: 20px;
            font-size: 12px;
            color: var(--gold-light);
            letter-spacing: 0.3px;
        }

        /* ===== Header & Navigation ===== */
        .header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.03);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
        }
        .logo i {
            color: var(--accent);
            font-size: 28px;
        }
        .logo span {
            color: var(--accent);
        }
        .nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 15px;
            color: var(--text-light);
            transition: all var(--transition);
            position: relative;
        }
        .nav a:hover {
            color: var(--primary);
            background: rgba(15, 30, 46, 0.04);
        }
        .nav a.active {
            color: var(--accent);
            background: rgba(230, 57, 70, 0.08);
            font-weight: 600;
        }
        .nav a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
        }
        .nav .nav-cta {
            background: var(--accent);
            color: #fff !important;
            padding: 10px 24px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 4px 14px rgba(230, 57, 70, 0.25);
            transition: all var(--transition);
        }
        .nav .nav-cta:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230, 57, 70, 0.35);
            color: #fff !important;
        }
        .nav .nav-cta i {
            font-size: 14px;
            transition: transform var(--transition);
        }
        .nav .nav-cta:hover i {
            transform: translateX(4px);
        }

        /* Hamburger */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 6px;
            cursor: pointer;
            background: none;
            border: none;
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
            transition: all 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(6px, -6px);
        }

        /* ===== Hero / Banner ===== */
        .page-hero {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 100px 24px 80px;
            background: var(--primary) url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            isolation: isolate;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 30, 46, 0.85) 0%, rgba(10, 22, 40, 0.70) 100%);
            z-index: 1;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(230, 57, 70, 0.15) 0%, transparent 70%);
            z-index: 1;
        }
        .page-hero .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
        }
        .page-hero .hero-badge {
            display: inline-block;
            background: rgba(244, 162, 97, 0.15);
            border: 1px solid rgba(244, 162, 97, 0.25);
            color: var(--gold-light);
            padding: 6px 20px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.5px;
            margin-bottom: 20px;
            backdrop-filter: blur(4px);
        }
        .page-hero h1 {
            font-size: 52px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -1px;
            line-height: 1.15;
        }
        .page-hero h1 span {
            color: var(--gold);
        }
        .page-hero p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.80);
            max-width: 640px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }
        .page-hero .hero-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .page-hero .btn-primary {
            background: var(--accent);
            color: #fff;
            padding: 14px 36px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 16px;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            box-shadow: 0 6px 24px rgba(230, 57, 70, 0.30);
            transition: all var(--transition);
        }
        .page-hero .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(230, 57, 70, 0.40);
        }
        .page-hero .btn-outline {
            background: transparent;
            color: #fff;
            padding: 14px 36px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 16px;
            border: 2px solid rgba(255, 255, 255, 0.25);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            transition: all var(--transition);
        }
        .page-hero .btn-outline:hover {
            border-color: var(--gold);
            background: rgba(244, 162, 97, 0.10);
            transform: translateY(-3px);
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-wrap {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
            padding: 14px 0;
        }
        .breadcrumb-wrap .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-light);
        }
        .breadcrumb-wrap .breadcrumb a {
            color: var(--text-light);
            transition: color var(--transition);
        }
        .breadcrumb-wrap .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb-wrap .breadcrumb .sep {
            color: var(--border);
            font-size: 12px;
        }
        .breadcrumb-wrap .breadcrumb .current {
            color: var(--text);
            font-weight: 600;
        }

        /* ===== Section General ===== */
        .section {
            padding: 80px 0;
        }
        .section-header {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 56px;
        }
        .section-header .section-tag {
            display: inline-block;
            background: rgba(230, 57, 70, 0.08);
            color: var(--accent);
            padding: 4px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.3px;
            margin-bottom: 12px;
        }
        .section-header h2 {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }
        .section-header h2 span {
            color: var(--accent);
        }
        .section-header p {
            font-size: 17px;
            color: var(--text-light);
            line-height: 1.7;
        }

        /* ===== Category Intro ===== */
        .category-intro {
            background: var(--bg-white);
        }
        .category-intro .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .category-intro .intro-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            position: relative;
        }
        .category-intro .intro-image img {
            width: 100%;
            height: 400px;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .category-intro .intro-image:hover img {
            transform: scale(1.03);
        }
        .category-intro .intro-image .image-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--accent);
            color: #fff;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            box-shadow: 0 4px 12px rgba(230, 57, 70, 0.25);
        }
        .category-intro .intro-text h3 {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .category-intro .intro-text h3 span {
            color: var(--accent);
        }
        .category-intro .intro-text p {
            font-size: 16px;
            color: var(--text-light);
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .category-intro .intro-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }
        .category-intro .intro-features li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 15px;
            color: var(--text);
            padding: 8px 0;
        }
        .category-intro .intro-features li i {
            color: var(--gold);
            font-size: 18px;
            flex-shrink: 0;
        }

        /* ===== Event Cards Grid ===== */
        .event-grid-section {
            background: var(--bg);
        }
        .event-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .event-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            border: 1px solid var(--border);
        }
        .event-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }
        .event-card .card-image {
            position: relative;
            height: 220px;
            overflow: hidden;
        }
        .event-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .event-card:hover .card-image img {
            transform: scale(1.06);
        }
        .event-card .card-image .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--accent);
            color: #fff;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            box-shadow: 0 4px 12px rgba(230, 57, 70, 0.20);
        }
        .event-card .card-image .card-date {
            position: absolute;
            bottom: 14px;
            right: 14px;
            background: rgba(15, 30, 46, 0.75);
            color: #fff;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
            backdrop-filter: blur(4px);
        }
        .event-card .card-body {
            padding: 24px;
        }
        .event-card .card-body h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--primary);
        }
        .event-card .card-body p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .event-card .card-body .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 14px;
            border-top: 1px solid var(--border);
        }
        .event-card .card-body .card-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-light);
        }
        .event-card .card-body .card-meta .meta-item i {
            color: var(--accent);
        }
        .event-card .card-body .card-link {
            color: var(--accent);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition);
        }
        .event-card .card-body .card-link:hover {
            gap: 10px;
        }

        /* ===== Steps / Guide Flow ===== */
        .guide-flow {
            background: var(--bg-white);
        }
        .flow-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            counter-reset: step;
        }
        .flow-step {
            text-align: center;
            padding: 36px 24px;
            border-radius: var(--radius);
            background: var(--bg);
            border: 1px solid var(--border);
            transition: all var(--transition);
            position: relative;
        }
        .flow-step:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
            border-color: transparent;
        }
        .flow-step .step-number {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            font-weight: 800;
            margin: 0 auto 20px;
            box-shadow: 0 6px 20px rgba(15, 30, 46, 0.15);
            position: relative;
            z-index: 1;
        }
        .flow-step .step-number::after {
            content: '';
            position: absolute;
            inset: -4px;
            border-radius: 50%;
            border: 2px dashed rgba(15, 30, 46, 0.10);
        }
        .flow-step:nth-child(1) .step-number {
            background: var(--accent);
            box-shadow: 0 6px 20px rgba(230, 57, 70, 0.25);
        }
        .flow-step:nth-child(2) .step-number {
            background: var(--gold);
            box-shadow: 0 6px 20px rgba(244, 162, 97, 0.25);
        }
        .flow-step:nth-child(3) .step-number {
            background: #2a9d8f;
            box-shadow: 0 6px 20px rgba(42, 157, 143, 0.25);
        }
        .flow-step:nth-child(4) .step-number {
            background: #5a4fcf;
            box-shadow: 0 6px 20px rgba(90, 79, 207, 0.25);
        }
        .flow-step h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .flow-step p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
        }

        /* ===== Stats / Data ===== */
        .stats-section {
            background: var(--primary) url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            isolation: isolate;
            position: relative;
            padding: 80px 0;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 30, 46, 0.85) 0%, rgba(10, 22, 40, 0.75) 100%);
            z-index: 1;
        }
        .stats-section .container {
            position: relative;
            z-index: 2;
        }
        .stats-section .section-header h2 {
            color: #fff;
        }
        .stats-section .section-header p {
            color: rgba(255, 255, 255, 0.75);
        }
        .stats-section .section-header .section-tag {
            background: rgba(244, 162, 97, 0.15);
            color: var(--gold-light);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }
        .stat-item {
            text-align: center;
            padding: 32px 20px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius);
            border: 1px solid rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(4px);
            transition: all var(--transition);
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, 0.10);
            transform: translateY(-4px);
        }
        .stat-item .stat-number {
            font-size: 44px;
            font-weight: 800;
            color: var(--gold);
            line-height: 1.1;
            margin-bottom: 6px;
        }
        .stat-item .stat-number span {
            font-size: 24px;
            color: var(--gold-light);
        }
        .stat-item .stat-label {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.75);
            font-weight: 500;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-white);
        }
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
            background: var(--bg);
        }
        .faq-item:hover {
            border-color: rgba(230, 57, 70, 0.15);
        }
        .faq-item.active {
            border-color: var(--accent);
            box-shadow: 0 4px 20px rgba(230, 57, 70, 0.06);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            background: none;
            width: 100%;
            text-align: left;
            transition: all var(--transition);
        }
        .faq-question:hover {
            color: var(--accent);
        }
        .faq-question i {
            font-size: 18px;
            color: var(--accent);
            transition: transform var(--transition);
            flex-shrink: 0;
            margin-left: 12px;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }
        .faq-answer p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, #1a2f44 100%);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 70% 50%, rgba(230, 57, 70, 0.10) 0%, transparent 60%);
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 38px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section h2 span {
            color: var(--gold);
        }
        .cta-section p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 580px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }
        .cta-section .cta-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .cta-section .btn-cta {
            background: var(--accent);
            color: #fff;
            padding: 16px 44px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 17px;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            box-shadow: 0 8px 30px rgba(230, 57, 70, 0.30);
            transition: all var(--transition);
        }
        .cta-section .btn-cta:hover {
            background: var(--accent-hover);
            transform: translateY(-3px);
            box-shadow: 0 14px 40px rgba(230, 57, 70, 0.40);
        }
        .cta-section .btn-cta-outline {
            background: transparent;
            color: #fff;
            padding: 16px 44px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 17px;
            border: 2px solid rgba(255, 255, 255, 0.20);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            transition: all var(--transition);
        }
        .cta-section .btn-cta-outline:hover {
            border-color: var(--gold);
            background: rgba(244, 162, 97, 0.08);
            transform: translateY(-3px);
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 60px 0 0;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
        }
        .footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer .footer-brand .logo {
            color: #fff;
            font-size: 22px;
            margin-bottom: 16px;
            display: inline-flex;
        }
        .footer .footer-brand .logo i {
            color: var(--accent);
        }
        .footer .footer-brand .logo span {
            color: var(--accent);
        }
        .footer .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.55);
            max-width: 340px;
            margin-bottom: 20px;
        }
        .footer .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer .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;
            color: rgba(255, 255, 255, 0.60);
            font-size: 18px;
            transition: all var(--transition);
        }
        .footer .footer-social a:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-3px);
        }
        .footer .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 30px;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
        }
        .footer .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            padding: 6px 0;
            transition: all var(--transition);
        }
        .footer .footer-col a:hover {
            color: var(--gold);
            padding-left: 4px;
        }
        .footer .footer-bottom {
            text-align: center;
            padding: 24px 0;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.40);
        }
        .footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
        }
        .footer .footer-bottom a:hover {
            color: var(--gold);
        }
        .footer .footer-bottom .sep {
            margin: 0 8px;
            opacity: 0.3;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .event-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .flow-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .category-intro .intro-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .category-intro .intro-image img {
                height: 300px;
            }
            .page-hero h1 {
                font-size: 40px;
            }
            .footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --nav-height: 64px;
                --topbar-height: 38px;
            }
            .topbar-left span {
                font-size: 12px;
            }
            .topbar-right a {
                font-size: 12px;
            }
            .topbar-right .domain-badge {
                font-size: 11px;
                padding: 1px 10px;
            }
            .hamburger {
                display: flex;
            }
            .nav {
                position: fixed;
                top: calc(var(--topbar-height) + var(--nav-height));
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: 20px 24px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
                transform: translateY(-120%);
                opacity: 0;
                transition: all 0.4s ease;
                pointer-events: none;
                z-index: 999;
                gap: 6px;
            }
            .nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav a {
                padding: 12px 16px;
                font-size: 16px;
                width: 100%;
                border-radius: var(--radius-sm);
            }
            .nav a.active::after {
                display: none;
            }
            .nav .nav-cta {
                justify-content: center;
                margin-top: 8px;
            }
            .page-hero {
                min-height: 340px;
                padding: 80px 20px 60px;
            }
            .page-hero h1 {
                font-size: 32px;
            }
            .page-hero p {
                font-size: 16px;
            }
            .section {
                padding: 56px 0;
            }
            .section-header {
                margin-bottom: 40px;
            }
            .section-header h2 {
                font-size: 28px;
            }
            .event-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .event-card .card-image {
                height: 200px;
            }
            .flow-steps {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat-item .stat-number {
                font-size: 34px;
            }
            .category-intro .intro-features {
                grid-template-columns: 1fr;
            }
            .category-intro .intro-image img {
                height: 220px;
            }
            .cta-section h2 {
                font-size: 28px;
            }
            .footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer .footer-brand p {
                max-width: 100%;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .topbar-left span {
                font-size: 11px;
            }
            .topbar-right {
                gap: 8px;
            }
            .topbar-right .domain-badge {
                display: none;
            }
            .page-hero h1 {
                font-size: 26px;
            }
            .page-hero .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .page-hero .btn-primary,
            .page-hero .btn-outline {
                width: 100%;
                justify-content: center;
                padding: 12px 24px;
                font-size: 15px;
            }
            .section-header h2 {
                font-size: 24px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-item {
                padding: 20px 12px;
            }
            .stat-item .stat-number {
                font-size: 28px;
            }
            .cta-section .cta-actions {
                flex-direction: column;
                align-items: center;
            }
            .cta-section .btn-cta,
            .cta-section .btn-cta-outline {
                width: 100%;
                justify-content: center;
            }
            .faq-question {
                font-size: 15px;
                padding: 16px 18px;
            }
            .faq-answer p {
                font-size: 14px;
            }
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a56db;
            --primary-dark: #0f3b8e;
            --primary-light: #e8eefb;
            --primary-gradient: linear-gradient(135deg, #1a56db, #7c3aed);
            --secondary: #f59e0b;
            --secondary-light: #fef3c7;
            --accent: #06b6d4;
            --bg: #f8fafc;
            --bg-alt: #f1f5f9;
            --bg-dark: #0f172a;
            --text: #1e293b;
            --text-light: #64748b;
            --text-white: #ffffff;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-xs: 6px;
            --shadow: 0 4px 24px rgba(0,0,0,0.06);
            --shadow-hover: 0 12px 40px rgba(0,0,0,0.10);
            --shadow-lg: 0 20px 60px rgba(0,0,0,0.12);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --max-width: 1200px;
            --nav-height: 80px;
        }

        /* ===== Reset ===== */
        *, *::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);
            background: var(--bg);
            overflow-x: hidden;
        }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea { font-family: inherit; font-size: inherit; outline: none; border: none; }
        button { cursor: pointer; background: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; }
        .container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

        /* ===== Header & Nav ===== */
        .header {
            position: fixed; top: 0; left: 0; right: 0;
            background: rgba(255,255,255,0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            z-index: 1000;
            border-bottom: 1px solid var(--border);
            height: var(--nav-height);
            transition: var(--transition);
        }
        .header.scrolled { box-shadow: 0 4px 20px rgba(0,0,0,0.06); }
        .header .container {
            display: flex; align-items: center; justify-content: space-between;
            height: var(--nav-height);
        }
        .logo {
            display: flex; align-items: center; gap: 10px;
            font-size: 22px; font-weight: 800; color: var(--text);
            letter-spacing: -0.5px;
        }
        .logo i { color: var(--primary); font-size: 26px; }
        .logo span { color: var(--primary); }
        .nav { display: flex; align-items: center; gap: 8px; }
        .nav a {
            padding: 8px 18px; border-radius: var(--radius-xs);
            font-size: 15px; font-weight: 500; color: var(--text-light);
            transition: var(--transition); position: relative;
        }
        .nav a:hover { color: var(--primary); background: var(--primary-light); }
        .nav a.active {
            color: var(--primary); background: var(--primary-light);
            font-weight: 600;
        }
        .nav a.active::after {
            content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%);
            width: 20px; height: 3px; background: var(--primary); border-radius: 2px;
        }
        .nav .nav-cta {
            background: var(--primary-gradient); color: #fff !important; padding: 10px 24px;
            border-radius: 50px; font-weight: 600; font-size: 14px;
            box-shadow: 0 4px 14px rgba(26,86,219,0.3);
            display: flex; align-items: center; gap: 8px;
        }
        .nav .nav-cta:hover {
            transform: translateY(-2px); box-shadow: 0 8px 24px rgba(26,86,219,0.4);
            background: linear-gradient(135deg, #1549c0, #6d28d9); color: #fff !important;
        }
        .nav .nav-cta i { font-size: 14px; }
        .hamburger { display: none; flex-direction: column; gap: 5px; padding: 8px; cursor: pointer; }
        .hamburger span { display: block; width: 26px; height: 2.5px; background: var(--text); border-radius: 2px; transition: var(--transition); }

        /* ===== Mobile Nav ===== */
        .mobile-nav {
            display: none; position: fixed; top: var(--nav-height); left: 0; right: 0;
            background: rgba(255,255,255,0.98); backdrop-filter: blur(20px);
            padding: 20px 24px; border-bottom: 1px solid var(--border);
            z-index: 999; flex-direction: column; gap: 12px;
            box-shadow: var(--shadow-lg);
        }
        .mobile-nav.open { display: flex; }
        .mobile-nav a {
            padding: 12px 16px; border-radius: var(--radius-sm);
            font-size: 16px; font-weight: 500; color: var(--text);
            transition: var(--transition);
        }
        .mobile-nav a:hover { background: var(--primary-light); color: var(--primary); }
        .mobile-nav a.active { background: var(--primary-light); color: var(--primary); font-weight: 600; }
        .mobile-nav .nav-cta {
            background: var(--primary-gradient); color: #fff !important;
            border-radius: 50px; text-align: center; margin-top: 8px;
        }

        /* ===== Hero ===== */
        .hero {
            margin-top: var(--nav-height);
            min-height: 420px;
            display: flex; align-items: center;
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #1a56db 100%);
            position: relative; overflow: hidden;
        }
        .hero::before {
            content: ''; position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.25; mix-blend-mode: overlay;
        }
        .hero::after {
            content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 80px;
            background: linear-gradient(to top, var(--bg), transparent);
        }
        .hero .container { position: relative; z-index: 1; padding: 60px 24px; text-align: center; }
        .hero-badge {
            display: inline-flex; align-items: center; gap: 8px;
            background: rgba(255,255,255,0.12); backdrop-filter: blur(8px);
            padding: 8px 20px; border-radius: 50px;
            color: rgba(255,255,255,0.9); font-size: 14px; font-weight: 500;
            margin-bottom: 24px; border: 1px solid rgba(255,255,255,0.15);
        }
        .hero-badge i { color: var(--secondary); }
        .hero h1 {
            font-size: 48px; font-weight: 900; color: #fff;
            margin-bottom: 16px; letter-spacing: -1px;
            text-shadow: 0 2px 20px rgba(0,0,0,0.2);
        }
        .hero h1 span { color: var(--secondary); }
        .hero p {
            font-size: 18px; color: rgba(255,255,255,0.75);
            max-width: 680px; margin: 0 auto 32px; line-height: 1.8;
        }
        .hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
        .btn {
            display: inline-flex; align-items: center; gap: 10px;
            padding: 14px 32px; border-radius: 50px; font-size: 16px; font-weight: 600;
            transition: var(--transition); cursor: pointer; border: none;
        }
        .btn-primary { background: var(--primary-gradient); color: #fff; box-shadow: 0 4px 16px rgba(26,86,219,0.35); }
        .btn-primary:hover { transform: translateY(-3px); box-shadow: 0 10px 32px rgba(26,86,219,0.45); }
        .btn-outline { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,0.3); }
        .btn-outline:hover { border-color: #fff; background: rgba(255,255,255,0.08); transform: translateY(-3px); }
        .btn-white { background: #fff; color: var(--primary); box-shadow: 0 4px 16px rgba(0,0,0,0.1); }
        .btn-white:hover { transform: translateY(-3px); box-shadow: 0 10px 32px rgba(0,0,0,0.15); }

        /* ===== Section ===== */
        .section { padding: 80px 0; }
        .section-alt { background: var(--bg-alt); }
        .section-dark { background: var(--bg-dark); color: #fff; }
        .section-title {
            text-align: center; margin-bottom: 48px;
        }
        .section-title h2 {
            font-size: 34px; font-weight: 800; color: var(--text);
            margin-bottom: 12px; letter-spacing: -0.5px;
        }
        .section-title h2 span { color: var(--primary); }
        .section-title p {
            font-size: 16px; color: var(--text-light);
            max-width: 600px; margin: 0 auto; line-height: 1.8;
        }
        .section-title.light h2 { color: #fff; }
        .section-title.light p { color: rgba(255,255,255,0.7); }
        .title-tag {
            display: inline-block; padding: 4px 16px; border-radius: 50px;
            font-size: 13px; font-weight: 600; color: var(--primary);
            background: var(--primary-light); margin-bottom: 12px;
        }
        .title-tag.light { background: rgba(255,255,255,0.12); color: rgba(255,255,255,0.9); }

        /* ===== Card ===== */
        .card {
            background: #fff; border-radius: var(--radius);
            box-shadow: var(--shadow); padding: 28px;
            transition: var(--transition); border: 1px solid var(--border);
        }
        .card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
        .card-img { border-radius: var(--radius-sm); overflow: hidden; margin: -28px -28px 20px -28px; height: 200px; }
        .card-img img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
        .card:hover .card-img img { transform: scale(1.05); }
        .card h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; color: var(--text); }
        .card p { font-size: 14px; color: var(--text-light); line-height: 1.7; margin-bottom: 16px; }
        .card-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
        .tag {
            display: inline-block; padding: 4px 14px; border-radius: 50px;
            font-size: 12px; font-weight: 500; color: var(--primary);
            background: var(--primary-light); transition: var(--transition);
        }
        .tag:hover { background: var(--primary); color: #fff; }
        .card-link { color: var(--primary); font-weight: 600; font-size: 14px; display: inline-flex; align-items: center; gap: 6px; }
        .card-link i { transition: var(--transition); font-size: 12px; }
        .card-link:hover i { transform: translateX(4px); }

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

        /* ===== Stats / 数据亮点 ===== */
        .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
        .stat-item {
            text-align: center; padding: 32px 20px;
            background: rgba(255,255,255,0.05); border-radius: var(--radius);
            border: 1px solid rgba(255,255,255,0.08);
            transition: var(--transition);
        }
        .stat-item:hover { background: rgba(255,255,255,0.08); transform: translateY(-4px); }
        .stat-number {
            font-size: 42px; font-weight: 900; color: var(--secondary);
            line-height: 1.2; margin-bottom: 6px;
        }
        .stat-label { font-size: 15px; color: rgba(255,255,255,0.7); font-weight: 500; }

        /* ===== Service Cards ===== */
        .service-card {
            background: #fff; border-radius: var(--radius);
            padding: 32px 28px; text-align: center;
            box-shadow: var(--shadow); border: 1px solid var(--border);
            transition: var(--transition);
        }
        .service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
        .service-icon {
            width: 64px; height: 64px; margin: 0 auto 20px;
            background: var(--primary-light); border-radius: 16px;
            display: flex; align-items: center; justify-content: center;
            font-size: 28px; color: var(--primary); transition: var(--transition);
        }
        .service-card:hover .service-icon { background: var(--primary); color: #fff; }
        .service-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
        .service-card p { font-size: 14px; color: var(--text-light); line-height: 1.7; }

        /* ===== Data List / 资讯列表 ===== */
        .data-list { display: flex; flex-direction: column; gap: 16px; }
        .data-item {
            display: flex; align-items: center; gap: 20px;
            background: #fff; padding: 20px 24px;
            border-radius: var(--radius-sm); border: 1px solid var(--border);
            transition: var(--transition); cursor: pointer;
        }
        .data-item:hover { box-shadow: var(--shadow); transform: translateX(4px); border-color: var(--primary); }
        .data-rank {
            font-size: 22px; font-weight: 900; color: var(--primary);
            min-width: 40px; text-align: center;
        }
        .data-rank .rank-badge {
            display: inline-block; background: var(--primary-light);
            color: var(--primary); width: 36px; height: 36px; line-height: 36px;
            border-radius: 50%; font-size: 16px; font-weight: 700;
        }
        .data-item:nth-child(1) .rank-badge { background: var(--secondary); color: #fff; }
        .data-item:nth-child(2) .rank-badge { background: var(--accent); color: #fff; }
        .data-item:nth-child(3) .rank-badge { background: var(--primary); color: #fff; }
        .data-info { flex: 1; }
        .data-info h4 { font-size: 16px; font-weight: 600; margin-bottom: 4px; }
        .data-info p { font-size: 13px; color: var(--text-light); }
        .data-meta { font-size: 12px; color: var(--text-light); white-space: nowrap; }
        .data-meta i { margin-right: 4px; }

        /* ===== Tools / 工具平台 ===== */
        .tools-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
        .tool-card {
            display: flex; align-items: flex-start; gap: 20px;
            background: #fff; padding: 24px; border-radius: var(--radius);
            box-shadow: var(--shadow); border: 1px solid var(--border);
            transition: var(--transition);
        }
        .tool-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
        .tool-icon {
            width: 52px; height: 52px; min-width: 52px;
            background: var(--primary-light); border-radius: 14px;
            display: flex; align-items: center; justify-content: center;
            font-size: 24px; color: var(--primary);
        }
        .tool-info h4 { font-size: 17px; font-weight: 700; margin-bottom: 6px; }
        .tool-info p { font-size: 14px; color: var(--text-light); line-height: 1.7; }
        .tool-info .tag { margin-top: 10px; }

        /* ===== FAQ ===== */
        .faq-grid { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
        .faq-item {
            background: #fff; border-radius: var(--radius-sm);
            border: 1px solid var(--border); overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--primary); }
        .faq-question {
            display: flex; align-items: center; justify-content: space-between;
            padding: 18px 24px; cursor: pointer; font-weight: 600;
            font-size: 16px; transition: var(--transition);
        }
        .faq-question i { color: var(--primary); transition: var(--transition); font-size: 14px; }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 24px 18px; font-size: 14px; color: var(--text-light);
            line-height: 1.8; display: none;
        }
        .faq-item.open .faq-answer { display: block; }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary-gradient);
            padding: 80px 0; position: relative; overflow: hidden;
        }
        .cta-section::before {
            content: ''; position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.08; mix-blend-mode: overlay;
        }
        .cta-section .container { position: relative; z-index: 1; text-align: center; }
        .cta-section h2 { font-size: 38px; font-weight: 900; color: #fff; margin-bottom: 16px; }
        .cta-section p { font-size: 17px; color: rgba(255,255,255,0.8); max-width: 600px; margin: 0 auto 32px; }
        .cta-section .btn-white { padding: 16px 40px; font-size: 17px; }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark); color: rgba(255,255,255,0.7);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 40px; margin-bottom: 40px;
        }
        .footer-brand .logo { color: #fff; margin-bottom: 16px; font-size: 22px; }
        .footer-brand .logo i { color: var(--secondary); }
        .footer-brand .logo span { color: var(--secondary); }
        .footer-brand p { font-size: 14px; line-height: 1.8; margin-bottom: 20px; color: rgba(255,255,255,0.55); }
        .footer-social { display: flex; gap: 12px; }
        .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: 18px; color: rgba(255,255,255,0.5);
            transition: var(--transition);
        }
        .footer-social a:hover { background: var(--primary); color: #fff; transform: translateY(-3px); }
        .footer-col h4 {
            font-size: 16px; font-weight: 700; color: #fff;
            margin-bottom: 16px; letter-spacing: 0.5px;
        }
        .footer-col a {
            display: block; font-size: 14px; color: rgba(255,255,255,0.5);
            padding: 6px 0; transition: var(--transition);
        }
        .footer-col a:hover { color: var(--secondary); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.06);
            padding: 24px 0; font-size: 13px; color: rgba(255,255,255,0.4);
            display: flex; justify-content: center; flex-wrap: wrap; gap: 8px;
        }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: var(--secondary); }
        .footer-bottom .sep { opacity: 0.3; }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .grid-4 { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            .nav { display: none; }
            .hamburger { display: flex; }
            .hero h1 { font-size: 32px; }
            .hero p { font-size: 16px; }
            .section { padding: 60px 0; }
            .section-title h2 { font-size: 26px; }
            .grid-3 { grid-template-columns: 1fr 1fr; gap: 20px; }
            .grid-2, .tools-grid { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .stat-number { font-size: 32px; }
            .footer-grid { grid-template-columns: 1fr; gap: 30px; }
            .data-item { flex-wrap: wrap; }
            .data-meta { width: 100%; text-align: right; }
            .cta-section h2 { font-size: 28px; }
            .hero { min-height: 360px; }
            .hero .container { padding: 40px 24px; }
        }
        @media (max-width: 520px) {
            .grid-3 { grid-template-columns: 1fr; }
            .grid-4 { grid-template-columns: 1fr; }
            .hero h1 { font-size: 26px; }
            .hero p { font-size: 15px; }
            .section { padding: 48px 0; }
            .section-title h2 { font-size: 22px; }
            .stat-number { font-size: 28px; }
            .btn { padding: 12px 24px; font-size: 14px; }
            .container { padding: 0 16px; }
            .tool-card { flex-direction: column; align-items: center; text-align: center; }
            .cta-section h2 { font-size: 24px; }
            .footer-bottom { flex-direction: column; align-items: center; text-align: center; }
        }