/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a2a4a;
            --primary-light: #2a406a;
            --primary-dark: #0f1a30;
            --accent: #c9a84c;
            --accent-light: #dcc070;
            --accent-dark: #a88830;
            --bg: #f5f7fa;
            --bg-card: #ffffff;
            --bg-dark: #0f1a30;
            --text: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-weak: #8888a0;
            --text-white: #f0f2f5;
            --border: #e2e6ee;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 14px rgba(0,0,0,0.06);
            --shadow-lg: 0 8px 30px rgba(0,0,0,0.08);
            --shadow-xl: 0 16px 48px rgba(0,0,0,0.10);
            --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
            --max-w: 1200px;
            --header-h: 72px;
            --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
        }

        /* ===== 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;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--accent); }
        button, input, textarea { font-family: inherit; font-size: inherit; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--primary); }
        h1 { font-size: 2.6rem; }
        h2 { font-size: 2rem; margin-bottom: 1rem; }
        h3 { font-size: 1.35rem; }
        h4 { font-size: 1.1rem; }
        p { margin-bottom: 1rem; color: var(--text-secondary); }
        .container {
            max-width: var(--max-w);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-pad { padding: 80px 0; }
        .section-title { text-align: center; margin-bottom: 48px; }
        .section-title h2 { position: relative; display: inline-block; }
        .section-title h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--accent);
            border-radius: 4px;
            margin: 12px auto 0;
        }
        .section-title p { max-width: 640px; margin: 12px auto 0; font-size: 1.05rem; }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            text-align: center;
            justify-content: center;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--primary-dark);
            box-shadow: 0 2px 8px rgba(201,168,76,0.3);
        }
        .btn-primary:hover { background: var(--accent-light); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(201,168,76,0.4); color: var(--primary-dark); }
        .btn-outline {
            background: transparent;
            color: var(--text-white);
            border: 2px solid rgba(255,255,255,0.6);
        }
        .btn-outline:hover { background: rgba(255,255,255,0.12); border-color: #fff; color: #fff; transform: translateY(-2px); }
        .btn-secondary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 2px 8px rgba(26,42,74,0.2);
        }
        .btn-secondary:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(26,42,74,0.3); color: #fff; }
        .btn-lg { padding: 16px 40px; font-size: 1.1rem; border-radius: var(--radius-md); }
        .btn-sm { padding: 8px 18px; font-size: 0.85rem; }

        /* ===== 导航 ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-h);
            background: rgba(255,255,255,0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            z-index: 1000;
            transition: box-shadow var(--transition);
        }
        .header.scrolled { box-shadow: var(--shadow-md); }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-w);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
        }
        .logo i { color: var(--accent); font-size: 1.5rem; }
        .logo span { background: linear-gradient(135deg, var(--primary), var(--primary-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
        .logo:hover { opacity: 0.9; }
        .nav-main { display: flex; align-items: center; gap: 32px; }
        .nav-main a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            padding: 4px 0;
            transition: color var(--transition);
        }
        .nav-main a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transition: width var(--transition);
        }
        .nav-main a:hover { color: var(--primary); }
        .nav-main a:hover::after { width: 100%; }
        .nav-main a.active { color: var(--primary); font-weight: 700; }
        .nav-main a.active::after { width: 100%; }
        .nav-actions { display: flex; align-items: center; gap: 16px; }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg);
            border-radius: 40px;
            padding: 0 16px;
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .search-box:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(201,168,76,0.15); }
        .search-box i { color: var(--text-weak); font-size: 0.9rem; }
        .search-box input {
            border: none;
            background: transparent;
            padding: 8px 12px;
            font-size: 0.9rem;
            color: var(--text);
            width: 160px;
            outline: none;
        }
        .search-box input::placeholder { color: var(--text-weak); }
        .nav-toggle { display: none; background: none; border: none; font-size: 1.5rem; color: var(--primary); cursor: pointer; padding: 4px; }
        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--header-h);
            left: 0;
            right: 0;
            background: rgba(255,255,255,0.98);
            backdrop-filter: blur(12px);
            padding: 20px 24px;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-lg);
            z-index: 999;
        }
        .mobile-menu.open { display: block; }
        .mobile-menu a {
            display: block;
            padding: 12px 0;
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border);
        }
        .mobile-menu a:last-child { border-bottom: none; }
        .mobile-menu a.active { color: var(--primary); font-weight: 700; }
        .mobile-menu .btn { margin-top: 16px; width: 100%; }

        /* ===== Hero ===== */
        .hero {
            padding-top: var(--header-h);
            min-height: 92vh;
            display: flex;
            align-items: center;
            position: relative;
            background: var(--primary-dark);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center center;
            background-repeat: no-repeat;
            color: var(--text-white);
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,26,48,0.82) 0%, rgba(26,42,74,0.65) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 700px;
            padding: 60px 0;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(201,168,76,0.2);
            border: 1px solid rgba(201,168,76,0.3);
            padding: 6px 18px;
            border-radius: 40px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--accent-light);
            margin-bottom: 20px;
        }
        .hero h1 {
            font-size: 3.2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 20px;
        }
        .hero h1 span { color: var(--accent); }
        .hero p {
            font-size: 1.15rem;
            color: rgba(255,255,255,0.8);
            max-width: 540px;
            margin-bottom: 32px;
            line-height: 1.8;
        }
        .hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid rgba(255,255,255,0.12);
        }
        .hero-stat h3 { font-size: 1.8rem; color: #fff; font-weight: 800; }
        .hero-stat h3 span { color: var(--accent); }
        .hero-stat p { font-size: 0.9rem; color: rgba(255,255,255,0.6); margin: 0; }

        /* ===== 板块通用 ===== */
        .section-alt { background: var(--bg-card); }
        .section-dark { background: var(--bg-dark); color: var(--text-white); }
        .section-dark .section-title h2 { color: #fff; }
        .section-dark .section-title p { color: rgba(255,255,255,0.7); }
        .section-dark .section-title h2::after { background: var(--accent); }

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

        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            padding: 28px 24px;
            transition: all var(--transition);
        }
        .card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: transparent; }
        .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-sm);
            background: rgba(201,168,76,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent);
            margin-bottom: 18px;
        }
        .card h3 { margin-bottom: 10px; }
        .card p { font-size: 0.95rem; margin-bottom: 0; }
        .card-tag {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 40px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(201,168,76,0.12);
            color: var(--accent-dark);
            margin-bottom: 12px;
        }
        .card-img {
            border-radius: var(--radius-sm) var(--radius-sm) 0 0;
            overflow: hidden;
            margin: -28px -24px 20px -24px;
            height: 180px;
            background: var(--bg);
        }
        .card-img img { width: 100%; height: 100%; object-fit: cover; }

        /* ===== 特色区块 ===== */
        .feature-wrap {
            display: flex;
            gap: 60px;
            align-items: center;
        }
        .feature-image {
            flex: 0 0 48%;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .feature-image img { width: 100%; height: auto; display: block; }
        .feature-text { flex: 1; }
        .feature-text h2 { margin-bottom: 16px; }
        .feature-text p { margin-bottom: 16px; }
        .feature-list { margin-top: 20px; }
        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 8px 0;
            font-size: 0.95rem;
            color: var(--text-secondary);
        }
        .feature-list li i { color: var(--accent); font-size: 1.1rem; margin-top: 3px; }

        /* ===== 数据/流程 ===== */
        .steps { display: flex; gap: 32px; counter-reset: step; }
        .step-item {
            flex: 1;
            text-align: center;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 20px;
            border: 1px solid var(--border);
            position: relative;
            transition: all var(--transition);
        }
        .step-item:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
        .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 800;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
        }
        .step-item h4 { margin-bottom: 8px; }
        .step-item p { font-size: 0.9rem; margin: 0; }

        /* ===== 资讯列表 (CMS) ===== */
        .news-list { display: flex; flex-direction: column; gap: 16px; }
        .news-item {
            display: flex;
            gap: 20px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            border: 1px solid var(--border);
            transition: all var(--transition);
            align-items: flex-start;
        }
        .news-item:hover { transform: translateX(4px); box-shadow: var(--shadow-md); border-color: transparent; }
        .news-thumb {
            flex: 0 0 120px;
            height: 80px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: var(--bg);
        }
        .news-thumb img { width: 100%; height: 100%; object-fit: cover; }
        .news-info { flex: 1; }
        .news-info h4 { font-size: 1.05rem; margin-bottom: 4px; }
        .news-info h4 a { color: var(--text); }
        .news-info h4 a:hover { color: var(--accent); }
        .news-meta {
            display: flex;
            gap: 16px;
            font-size: 0.82rem;
            color: var(--text-weak);
            margin-top: 6px;
        }
        .news-meta i { margin-right: 4px; }
        .news-empty {
            text-align: center;
            padding: 60px 20px;
            color: var(--text-weak);
            font-size: 1.05rem;
        }
        .news-empty i { font-size: 2rem; display: block; margin-bottom: 12px; color: var(--border); }

        /* ===== FAQ ===== */
        .faq-grid { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover { border-color: transparent; box-shadow: var(--shadow-sm); }
        .faq-q {
            padding: 20px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            gap: 16px;
        }
        .faq-q i { color: var(--accent); transition: transform var(--transition); font-size: 0.9rem; }
        .faq-q.open i { transform: rotate(180deg); }
        .faq-a {
            padding: 0 24px 20px;
            font-size: 0.95rem;
            color: var(--text-secondary);
            display: none;
            line-height: 1.8;
        }
        .faq-a.open { display: block; }

        /* ===== CTA ===== */
        .cta-wrap {
            background: var(--primary-dark);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            border-radius: var(--radius-lg);
            padding: 64px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-wrap::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,26,48,0.85) 0%, rgba(26,42,74,0.75) 100%);
            border-radius: var(--radius-lg);
        }
        .cta-content { position: relative; z-index: 2; }
        .cta-wrap h2 { color: #fff; font-size: 2rem; margin-bottom: 12px; }
        .cta-wrap p { color: rgba(255,255,255,0.75); max-width: 540px; margin: 0 auto 28px; }
        .cta-wrap .btn { margin: 0 8px; }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--primary-dark);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo { color: #fff; margin-bottom: 16px; }
        .footer-brand p { font-size: 0.9rem; color: rgba(255,255,255,0.6); max-width: 300px; }
        .footer-social { display: flex; gap: 12px; margin-top: 20px; }
        .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(255,255,255,0.6);
            transition: all var(--transition);
        }
        .footer-social a:hover { background: var(--accent); color: var(--primary-dark); }
        .footer h4 { color: #fff; font-size: 1rem; margin-bottom: 16px; }
        .footer-links li { margin-bottom: 10px; }
        .footer-links a { color: rgba(255,255,255,0.6); font-size: 0.9rem; }
        .footer-links a:hover { color: var(--accent); }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 24px;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.4);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .grid-4 { grid-template-columns: repeat(2,1fr); }
            .hero h1 { font-size: 2.6rem; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .nav-main { display: none; }
            .nav-actions .search-box { display: none; }
            .nav-toggle { display: block; }
            .hero { min-height: 80vh; }
            .hero h1 { font-size: 2rem; }
            .hero p { font-size: 1rem; }
            .hero-stats { gap: 24px; flex-wrap: wrap; }
            .hero-stat h3 { font-size: 1.4rem; }
            .grid-3 { grid-template-columns: 1fr; gap: 20px; }
            .grid-2 { grid-template-columns: 1fr; gap: 20px; }
            .grid-4 { grid-template-columns: 1fr 1fr; gap: 16px; }
            .feature-wrap { flex-direction: column; gap: 30px; }
            .feature-image { flex: 0 0 100%; }
            .steps { flex-direction: column; gap: 16px; }
            .section-pad { padding: 48px 0; }
            .cta-wrap { padding: 40px 24px; }
            .cta-wrap h2 { font-size: 1.5rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .news-item { flex-direction: column; }
            .news-thumb { flex: 0 0 160px; width: 100%; }
            .hero-actions .btn { width: 100%; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .hero h1 { font-size: 1.6rem; }
            .hero-tag { font-size: 0.75rem; }
            .section-title h2 { font-size: 1.5rem; }
            .grid-4 { grid-template-columns: 1fr; }
            .card { padding: 20px 16px; }
            .news-item { padding: 16px; }
            .faq-q { padding: 16px; font-size: 0.9rem; }
            .cta-wrap { padding: 32px 16px; }
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #1a6b3c;
            --primary-light: #228b4a;
            --primary-dark: #0f4d2a;
            --primary-bg: #e8f5ee;
            --accent: #ff8c42;
            --accent-light: #ffa666;
            --accent-dark: #e67320;
            --bg: #ffffff;
            --bg-alt: #f6f9fc;
            --bg-card: #ffffff;
            --text: #1a2a3a;
            --text-light: #5a6a7a;
            --text-muted: #8a9aaa;
            --border: #e2e8f0;
            --radius: 14px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.10);
            --shadow-btn: 0 4px 12px rgba(26, 107, 60, 0.30);
            --transition: 0.25s ease;
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --container: 1200px;
            --header-h: 72px;
        }

        /* ===== 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;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }
        ul {
            list-style: none;
        }

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

        /* ===== Header ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-h);
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.03);
        }
        .header-inner {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .logo i {
            font-size: 1.5rem;
            color: var(--primary);
        }
        .logo span {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-main {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .nav-main a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-light);
            transition: var(--transition);
            position: relative;
        }
        .nav-main a:hover {
            color: var(--primary);
            background: var(--primary-bg);
        }
        .nav-main a.active {
            color: var(--primary);
            background: var(--primary-bg);
            font-weight: 600;
        }
        .nav-main a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .search-box {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: 40px;
            padding: 6px 16px;
            transition: var(--transition);
        }
        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26, 107, 60, 0.12);
        }
        .search-box i {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .search-box input {
            background: transparent;
            border: none;
            padding: 4px 0;
            font-size: 0.9rem;
            color: var(--text);
            width: 120px;
        }
        .search-box input::placeholder {
            color: var(--text-muted);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            white-space: nowrap;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            box-shadow: var(--shadow-btn);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(26, 107, 60, 0.35);
        }
        .btn-primary:active {
            transform: scale(0.97);
        }
        .btn-sm {
            padding: 7px 18px;
            font-size: 0.85rem;
        }
        .btn-outline {
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .nav-toggle {
            display: none;
            font-size: 1.4rem;
            color: var(--text);
            padding: 6px;
            cursor: pointer;
            background: none;
            border: none;
        }

        /* ===== Page Hero (Banner) ===== */
        .page-hero {
            padding-top: calc(var(--header-h) + 20px);
            padding-bottom: 60px;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            position: relative;
            overflow: hidden;
            min-height: 340px;
            display: flex;
            align-items: center;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.18;
            mix-blend-mode: overlay;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            line-height: 1.2;
            margin-bottom: 16px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
        }
        .page-hero p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 680px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }
        .page-hero .hero-badges {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .page-hero .hero-badges span {
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            padding: 6px 18px;
            border-radius: 40px;
            font-size: 0.85rem;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.20);
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            padding: 16px 0 8px;
            background: var(--bg-alt);
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb .container {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .breadcrumb a {
            color: var(--primary);
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb i {
            font-size: 0.7rem;
            color: var(--text-muted);
        }

        /* ===== Section ===== */
        .section {
            padding: 72px 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.02em;
            margin-bottom: 12px;
        }
        .section-title p {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .section-title .badge {
            display: inline-block;
            background: var(--primary-bg);
            color: var(--primary);
            padding: 4px 18px;
            border-radius: 40px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 12px;
        }

        /* ===== Cards Grid ===== */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            padding: 28px 24px;
            transition: var(--transition);
        }
        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .card-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: var(--primary-bg);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 18px;
        }
        .card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
        }
        .card p {
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.7;
        }
        .card .tag {
            display: inline-block;
            background: var(--primary-bg);
            color: var(--primary);
            padding: 2px 12px;
            border-radius: 40px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-top: 12px;
        }

        /* ===== Steps / Timeline ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .step-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            padding: 28px 20px;
            text-align: center;
            transition: var(--transition);
            position: relative;
        }
        .step-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .step-card::before {
            counter-increment: step;
            content: counter(step);
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            width: 32px;
            height: 32px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            font-weight: 700;
            box-shadow: 0 4px 12px rgba(26, 107, 60, 0.25);
        }
        .step-card .step-icon {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 14px;
            margin-top: 8px;
        }
        .step-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
        .step-card p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-hover);
        }
        .faq-question {
            padding: 20px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            gap: 16px;
        }
        .faq-question i {
            color: var(--primary);
            transition: var(--transition);
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .faq-question.open i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px 20px;
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.7;
            display: none;
        }
        .faq-answer.show {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            padding: 72px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.10;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 2.4rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        .cta-section .btn {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }
        .cta-section .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.20);
        }

        /* ===== Footer ===== */
        .footer {
            background: #0f1a24;
            color: rgba(255, 255, 255, 0.75);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            color: #fff;
            -webkit-text-fill-color: #fff;
            margin-bottom: 16px;
        }
        .footer-brand .logo i {
            color: #fff;
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 20px;
            max-width: 320px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .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: 1.1rem;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-3px);
        }
        .footer h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .page-hero h1 {
                font-size: 2.2rem;
            }
        }
        @media (max-width: 768px) {
            .nav-main {
                display: none;
                position: absolute;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(12px);
                -webkit-backdrop-filter: blur(12px);
                border-bottom: 1px solid var(--border);
                padding: 16px 24px;
                flex-direction: column;
                gap: 6px;
                box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
            }
            .nav-main.open {
                display: flex;
            }
            .nav-main a {
                padding: 12px 16px;
                width: 100%;
                border-radius: var(--radius-sm);
            }
            .nav-main a.active::after {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .search-box {
                display: none;
            }
            .header-inner .search-box {
                display: flex;
            }
            .nav-actions .search-box {
                display: none;
            }
            .grid-3,
            .grid-2 {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .page-hero h1 {
                font-size: 1.8rem;
            }
            .page-hero p {
                font-size: 1rem;
            }
            .section-title h2 {
                font-size: 1.7rem;
            }
            .section {
                padding: 48px 0;
            }
            .cta-section h2 {
                font-size: 1.8rem;
            }
            .container {
                padding: 0 16px;
            }
        }
        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 1.5rem;
            }
            .page-hero .hero-badges span {
                font-size: 0.75rem;
                padding: 4px 12px;
            }
            .btn-sm {
                padding: 6px 14px;
                font-size: 0.8rem;
            }
            .logo span {
                font-size: 1rem;
            }
            .logo i {
                font-size: 1.2rem;
            }
            .nav-actions .btn {
                padding: 6px 14px;
                font-size: 0.8rem;
            }
        }

/* roulang page: article */
:root {
    --primary: #1a3a6b;
    --primary-light: #2a5a9e;
    --primary-dark: #0f2444;
    --secondary: #e85d3a;
    --secondary-light: #f0785a;
    --accent: #f0b840;
    --bg: #f5f7fa;
    --bg-alt: #eef1f6;
    --bg-white: #ffffff;
    --text: #1a1a2e;
    --text-light: #4a4a6a;
    --text-muted: #7a7a9a;
    --border: #dce1e8;
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 20px;
    --shadow: 0 4px 20px rgba(26, 58, 107, 0.08);
    --shadow-hover: 0 12px 40px rgba(26, 58, 107, 0.15);
    --shadow-lg: 0 20px 60px rgba(26, 58, 107, 0.12);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    --max-width: 1200px;
    --content-width: 800px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); color: var(--text); background: var(--bg); line-height: 1.7; -webkit-font-smoothing: antialiased; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-light); }
img { max-width: 100%; height: auto; display: block; }
input, button, textarea { font-family: inherit; font-size: inherit; outline: none; border: none; }
button { cursor: pointer; background: none; }
ul, ol { list-style: none; }
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.content-container { max-width: var(--content-width); margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-alt { background: var(--bg-alt); }
.section-white { background: var(--bg-white); }
.section-title { font-size: 2rem; font-weight: 700; color: var(--primary-dark); margin-bottom: 12px; letter-spacing: -0.02em; }
.section-subtitle { font-size: 1.1rem; color: var(--text-muted); max-width: 640px; margin-bottom: 48px; line-height: 1.6; }
.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* Header & Nav */
.header {
    position: sticky; top: 0; z-index: 1000;
    background: rgba(255,255,255,0.92); backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 1px 8px rgba(26,58,107,0.04);
}
.header-inner {
    max-width: var(--max-width); margin: 0 auto; padding: 0 24px;
    display: flex; align-items: center; justify-content: space-between;
    height: 72px; gap: 24px;
}
.logo {
    display: flex; align-items: center; gap: 10px; font-size: 1.35rem; font-weight: 800;
    color: var(--primary-dark); letter-spacing: -0.03em; flex-shrink: 0;
}
.logo i { color: var(--secondary); font-size: 1.5rem; }
.logo:hover { color: var(--primary-dark); opacity: 0.9; }
.nav-main { display: flex; align-items: center; gap: 8px; }
.nav-main a {
    padding: 8px 18px; border-radius: var(--radius-sm); font-size: 0.95rem;
    font-weight: 500; color: var(--text-light); transition: var(--transition);
    position: relative;
}
.nav-main a:hover { color: var(--primary); background: rgba(26,58,107,0.06); }
.nav-main a.active { color: var(--primary); background: rgba(26,58,107,0.08); font-weight: 600; }
.nav-main a.active::after { display: none; }
.nav-actions { display: flex; align-items: center; gap: 16px; }
.search-box {
    display: flex; align-items: center; gap: 8px;
    background: var(--bg); border: 1px solid var(--border);
    border-radius: 100px; padding: 8px 16px; transition: var(--transition);
    min-width: 200px;
}
.search-box:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(26,58,107,0.1); }
.search-box i { color: var(--text-muted); font-size: 0.9rem; }
.search-box input { background: none; border: none; outline: none; font-size: 0.9rem; color: var(--text); width: 100%; }
.search-box input::placeholder { color: var(--text-muted); }
.btn {
    display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px;
    border-radius: var(--radius-sm); font-size: 0.95rem; font-weight: 600;
    transition: var(--transition); border: none; cursor: pointer;
    line-height: 1.4; white-space: nowrap;
}
.btn-primary {
    background: var(--primary); color: #fff; box-shadow: 0 4px 14px rgba(26,58,107,0.25);
}
.btn-primary:hover { background: var(--primary-light); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(26,58,107,0.35); }
.btn-primary:active { transform: translateY(0); }
.btn-secondary {
    background: var(--secondary); color: #fff; box-shadow: 0 4px 14px rgba(232,93,58,0.25);
}
.btn-secondary:hover { background: var(--secondary-light); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(232,93,58,0.35); }
.btn-outline {
    background: transparent; color: var(--primary); border: 2px solid var(--primary);
}
.btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
.btn-sm { padding: 8px 20px; font-size: 0.85rem; }
.btn-lg { padding: 16px 36px; font-size: 1.05rem; }
.nav-toggle { display: none; font-size: 1.4rem; color: var(--text); padding: 8px; }

/* Article Banner */
.article-banner {
    position: relative; padding: 100px 0 80px;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
    overflow: hidden; min-height: 360px;
    display: flex; align-items: center;
}
.article-banner::before {
    content: ''; position: absolute; inset: 0;
    background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
    opacity: 0.12; mix-blend-mode: overlay;
}
.article-banner::after {
    content: ''; position: absolute; bottom: 0; left: 0; right: 0;
    height: 120px; background: linear-gradient(to top, var(--bg), transparent);
}
.article-banner .container { position: relative; z-index: 2; }
.article-breadcrumb {
    display: flex; align-items: center; gap: 8px; font-size: 0.85rem;
    color: rgba(255,255,255,0.65); margin-bottom: 24px;
}
.article-breadcrumb a { color: rgba(255,255,255,0.8); }
.article-breadcrumb a:hover { color: #fff; }
.article-breadcrumb i { font-size: 0.6rem; opacity: 0.6; }
.article-banner .article-category {
    display: inline-block; padding: 4px 16px; border-radius: 100px;
    background: rgba(255,255,255,0.15); color: #fff; font-size: 0.8rem;
    font-weight: 600; letter-spacing: 0.04em; margin-bottom: 16px;
    backdrop-filter: blur(4px);
}
.article-banner h1 {
    font-size: 2.6rem; font-weight: 800; color: #fff; line-height: 1.25;
    max-width: 800px; letter-spacing: -0.02em; margin-bottom: 20px;
}
.article-banner .article-meta {
    display: flex; flex-wrap: wrap; gap: 20px; align-items: center;
    color: rgba(255,255,255,0.75); font-size: 0.9rem;
}
.article-banner .article-meta i { margin-right: 6px; opacity: 0.7; }
.article-banner .article-meta span { display: flex; align-items: center; }

/* Article Content */
.article-content-wrapper {
    position: relative; z-index: 2; margin-top: -40px;
}
.article-body {
    background: var(--bg-white); border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg); padding: 48px 56px;
    margin-bottom: 40px;
}
.article-body .content {
    font-size: 1.1rem; line-height: 1.85; color: var(--text);
}
.article-body .content p { margin-bottom: 1.6em; }
.article-body .content h2, .article-body .content h3 { margin-top: 2em; margin-bottom: 0.8em; color: var(--primary-dark); font-weight: 700; letter-spacing: -0.01em; }
.article-body .content h2 { font-size: 1.6rem; }
.article-body .content h3 { font-size: 1.25rem; }
.article-body .content ul, .article-body .content ol { margin-bottom: 1.6em; padding-left: 1.6em; }
.article-body .content li { margin-bottom: 0.5em; list-style: disc; }
.article-body .content ol li { list-style: decimal; }
.article-body .content a { color: var(--secondary); text-decoration: underline; text-underline-offset: 2px; }
.article-body .content a:hover { color: var(--secondary-light); }
.article-body .content blockquote {
    border-left: 4px solid var(--primary); background: var(--bg-alt);
    padding: 16px 24px; margin: 1.6em 0; border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-style: italic; color: var(--text-light);
}
.article-body .content img { border-radius: var(--radius-sm); margin: 2em auto; box-shadow: var(--shadow); }
.article-body .content pre { background: var(--primary-dark); color: #e8e8f0; padding: 20px 24px; border-radius: var(--radius-sm); overflow-x: auto; margin: 1.6em 0; font-size: 0.9rem; }
.article-body .content code { font-family: 'Fira Code', monospace; font-size: 0.9em; }
.article-tags {
    display: flex; flex-wrap: wrap; gap: 10px; margin-top: 40px; padding-top: 32px;
    border-top: 1px solid var(--border);
}
.article-tags .tag {
    padding: 6px 18px; border-radius: 100px; background: var(--bg-alt);
    color: var(--text-light); font-size: 0.8rem; font-weight: 500;
    transition: var(--transition); border: 1px solid transparent;
}
.article-tags .tag:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
.article-share {
    display: flex; align-items: center; gap: 12px; margin-top: 24px;
    padding-top: 24px; border-top: 1px solid var(--border);
}
.article-share span { font-size: 0.9rem; color: var(--text-muted); font-weight: 500; }
.article-share a {
    width: 40px; height: 40px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
    background: var(--bg-alt); color: var(--text-light); font-size: 1rem;
    transition: var(--transition);
}
.article-share a:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }

/* Article Not Found */
.article-not-found {
    text-align: center; padding: 80px 24px;
}
.article-not-found i { font-size: 4rem; color: var(--text-muted); opacity: 0.3; margin-bottom: 24px; }
.article-not-found h2 { font-size: 1.8rem; color: var(--text); margin-bottom: 12px; }
.article-not-found p { color: var(--text-muted); margin-bottom: 32px; font-size: 1.05rem; }

/* Related Posts */
.related-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.related-card {
    background: var(--bg-white); border-radius: var(--radius);
    box-shadow: var(--shadow); overflow: hidden;
    transition: var(--transition); border: 1px solid var(--border);
}
.related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.related-card .card-img {
    width: 100%; height: 200px; object-fit: cover; background: var(--bg-alt);
}
.related-card .card-body { padding: 20px 24px 24px; }
.related-card .card-category {
    display: inline-block; padding: 2px 12px; border-radius: 100px;
    background: rgba(26,58,107,0.08); color: var(--primary); font-size: 0.75rem;
    font-weight: 600; margin-bottom: 10px; letter-spacing: 0.03em;
}
.related-card h3 { font-size: 1.05rem; font-weight: 600; color: var(--primary-dark); margin-bottom: 8px; line-height: 1.4; }
.related-card h3 a { color: inherit; }
.related-card h3 a:hover { color: var(--primary-light); }
.related-card .card-excerpt { font-size: 0.88rem; color: var(--text-muted); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-card .card-meta { display: flex; align-items: center; gap: 16px; margin-top: 14px; font-size: 0.8rem; color: var(--text-muted); }
.related-card .card-meta i { margin-right: 4px; opacity: 0.6; }

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
    padding: 80px 0; text-align: center; position: relative; overflow: hidden;
}
.cta-section::before {
    content: ''; position: absolute; inset: 0;
    background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    opacity: 0.06; mix-blend-mode: overlay;
}
.cta-section .container { position: relative; z-index: 2; }
.cta-section h2 { font-size: 2.2rem; font-weight: 800; color: #fff; margin-bottom: 12px; }
.cta-section p { color: rgba(255,255,255,0.75); font-size: 1.1rem; max-width: 600px; margin: 0 auto 32px; }
.cta-section .btn { background: #fff; color: var(--primary); }
.cta-section .btn:hover { background: var(--accent); color: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.2); }

/* 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; margin-bottom: 40px; }
.footer-brand .logo { color: #fff; -webkit-text-fill-color: #fff; font-size: 1.3rem; margin-bottom: 16px; }
.footer-brand .logo i { -webkit-text-fill-color: initial; }
.footer-brand p { font-size: 0.9rem; line-height: 1.7; color: rgba(255,255,255,0.55); max-width: 360px; margin-bottom: 20px; }
.footer-social { display: flex; gap: 12px; }
.footer-social a {
    width: 40px; height: 40px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
    background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.6); font-size: 1.1rem;
    transition: var(--transition);
}
.footer-social a:hover { background: var(--secondary); color: #fff; transform: translateY(-2px); }
.footer h4 { color: #fff; font-size: 1rem; font-weight: 600; margin-bottom: 20px; letter-spacing: 0.02em; }
.footer-links li { margin-bottom: 12px; }
.footer-links a { color: rgba(255,255,255,0.55); font-size: 0.9rem; transition: var(--transition); }
.footer-links a:hover { color: #fff; padding-left: 4px; }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08); padding: 20px 0;
    text-align: center; font-size: 0.85rem; color: rgba(255,255,255,0.35);
}

/* Mobile */
@media (max-width: 1024px) {
    .related-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    .section { padding: 56px 0; }
    .section-title { font-size: 1.6rem; }
    .nav-main { display: none; }
    .search-box { display: none; }
    .nav-toggle { display: flex; }
    .article-banner { padding: 72px 0 56px; min-height: 280px; }
    .article-banner h1 { font-size: 1.8rem; }
    .article-body { padding: 28px 24px; border-radius: var(--radius); }
    .article-body .content { font-size: 1rem; }
    .related-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .cta-section h2 { font-size: 1.6rem; }
    .article-banner .article-meta { gap: 12px; font-size: 0.8rem; flex-wrap: wrap; }
    .header-inner { height: 64px; }
}
@media (max-width: 520px) {
    .container { padding: 0 16px; }
    .content-container { padding: 0 16px; }
    .article-body { padding: 20px 16px; }
    .article-banner h1 { font-size: 1.4rem; }
    .btn-sm { padding: 6px 16px; font-size: 0.8rem; }
    .nav-actions { gap: 8px; }
    .header-inner { gap: 12px; }
}

/* Nav open state (mobile) */
.nav-open .nav-main {
    display: flex; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0;
    background: rgba(255,255,255,0.98); backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border); padding: 16px 24px;
    box-shadow: var(--shadow-lg); gap: 4px;
}
.nav-open .nav-main a { width: 100%; padding: 12px 16px; border-radius: var(--radius-sm); }
.nav-open .search-box { display: flex; width: 100%; margin: 8px 0; }