/* roulang page: index */
:root {
            --primary: #0891b2;
            --primary-dark: #0e7490;
            --primary-light: #06b6d4;
            --primary-bg: #ecfeff;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --accent-light: #fbbf24;
            --bg: #f8fafc;
            --bg-alt: #f1f5f9;
            --card-bg: #ffffff;
            --text: #0f172a;
            --text-secondary: #475569;
            --text-light: #94a3b8;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius: 12px;
            --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);
            --transition: 0.3s ease;
            --font: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --header-h: 72px;
        }
        * { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body { font-family: var(--font); background: var(--bg); color: var(--text); line-height: 1.7; -webkit-font-smoothing: antialiased; }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-dark); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        ul, ol { list-style: none; }
        .container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
        .container-sm { max-width: 900px; margin: 0 auto; padding: 0 24px; }

        /* Header & Nav */
        .site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; height: var(--header-h); background: rgba(255,255,255,0.92); backdrop-filter: blur(16px); border-bottom: 1px solid var(--border); transition: var(--transition); }
        .site-header .container { display: flex; align-items: center; justify-content: space-between; height: 100%; }
        .logo { font-size: 1.6rem; font-weight: 800; color: var(--primary); letter-spacing: -0.5px; display: flex; align-items: center; gap: 8px; }
        .logo i { color: var(--accent); font-size: 1.4rem; }
        .logo span { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .logo:hover { color: var(--primary-dark); }
        .nav-list { display: flex; align-items: center; gap: 8px; }
        .nav-list a { display: flex; align-items: center; gap: 6px; padding: 8px 18px; border-radius: 50px; font-size: 0.95rem; font-weight: 500; color: var(--text-secondary); transition: var(--transition); }
        .nav-list a:hover { color: var(--primary); background: var(--primary-bg); }
        .nav-list a.active { color: var(--primary); background: var(--primary-bg); font-weight: 600; }
        .nav-list a i { font-size: 0.85rem; }
        .nav-toggle { display: none; background: none; border: none; font-size: 1.5rem; color: var(--text); padding: 8px; cursor: pointer; border-radius: var(--radius-sm); }
        .nav-toggle:hover { background: var(--bg-alt); }

        /* Hero */
        .hero { margin-top: var(--header-h); min-height: 88vh; display: flex; align-items: center; position: relative; background: linear-gradient(135deg, #0c4a6e 0%, #0e7490 40%, #0891b2 70%, #06b6d4 100%); overflow: hidden; }
        .hero-bg { position: absolute; inset: 0; background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat; opacity: 0.25; mix-blend-mode: overlay; }
        .hero-overlay { position: absolute; inset: 0; background: linear-gradient(135deg, rgba(12,74,110,0.85) 0%, rgba(14,116,144,0.70) 50%, rgba(6,182,212,0.50) 100%); }
        .hero .container { position: relative; z-index: 2; display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; padding-top: 40px; padding-bottom: 40px; }
        .hero-content { color: #fff; }
        .hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,0.15); backdrop-filter: blur(8px); padding: 6px 18px; border-radius: 50px; font-size: 0.85rem; font-weight: 500; color: #e0f2fe; margin-bottom: 24px; border: 1px solid rgba(255,255,255,0.10); }
        .hero-badge i { color: var(--accent-light); }
        .hero h1 { font-size: 3.4rem; font-weight: 800; line-height: 1.2; letter-spacing: -1px; margin-bottom: 20px; }
        .hero h1 span { background: linear-gradient(to right, #fbbf24, #f59e0b); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .hero p { font-size: 1.2rem; color: rgba(255,255,255,0.85); max-width: 520px; margin-bottom: 32px; line-height: 1.8; }
        .hero-actions { display: flex; flex-wrap: wrap; gap: 16px; }
        .btn { display: inline-flex; align-items: center; gap: 10px; padding: 14px 32px; border-radius: 50px; font-size: 1rem; font-weight: 600; border: none; cursor: pointer; transition: var(--transition); text-align: center; }
        .btn-primary { background: var(--accent); color: #fff; box-shadow: 0 4px 16px rgba(245,158,11,0.35); }
        .btn-primary:hover { background: var(--accent-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 32px rgba(245,158,11,0.45); }
        .btn-outline-light { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,0.40); }
        .btn-outline-light:hover { background: rgba(255,255,255,0.12); border-color: rgba(255,255,255,0.70); color: #fff; transform: translateY(-2px); }
        .hero-image { position: relative; display: flex; justify-content: center; align-items: center; }
        .hero-image img { border-radius: var(--radius-lg); box-shadow: 0 24px 80px rgba(0,0,0,0.30); transform: perspective(1000px) rotateY(-6deg); transition: var(--transition); width: 100%; max-width: 520px; }
        .hero-image img:hover { transform: perspective(1000px) rotateY(0deg); }
        .hero-float { position: absolute; background: rgba(255,255,255,0.95); backdrop-filter: blur(12px); padding: 12px 20px; border-radius: var(--radius); box-shadow: 0 8px 32px rgba(0,0,0,0.12); display: flex; align-items: center; gap: 12px; font-size: 0.9rem; font-weight: 500; color: var(--text); }
        .hero-float-1 { bottom: 20px; left: -20px; }
        .hero-float-2 { top: 30px; right: -10px; }
        .hero-float i { color: var(--accent); font-size: 1.2rem; }

        /* Section */
        .section { padding: 80px 0; }
        .section-alt { background: var(--bg-alt); }
        .section-title { text-align: center; margin-bottom: 56px; }
        .section-title h2 { font-size: 2.2rem; font-weight: 700; color: var(--text); margin-bottom: 12px; letter-spacing: -0.5px; }
        .section-title p { font-size: 1.1rem; color: var(--text-secondary); max-width: 620px; margin: 0 auto; }
        .section-title .line { width: 60px; height: 4px; background: linear-gradient(to right, var(--primary), var(--accent)); border-radius: 4px; margin: 16px auto 0; }

        /* Brand Story */
        .brand-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
        .brand-text h3 { font-size: 1.8rem; font-weight: 700; margin-bottom: 20px; color: var(--text); }
        .brand-text p { color: var(--text-secondary); margin-bottom: 16px; font-size: 1.05rem; }
        .brand-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 32px; }
        .brand-stat { text-align: center; padding: 20px; background: var(--card-bg); border-radius: var(--radius); box-shadow: var(--shadow); border: 1px solid var(--border); }
        .brand-stat .num { font-size: 2rem; font-weight: 800; color: var(--primary); }
        .brand-stat .label { font-size: 0.9rem; color: var(--text-secondary); margin-top: 4px; }
        .brand-image img { border-radius: var(--radius-lg); box-shadow: var(--shadow-hover); width: 100%; }

        /* Service Cards */
        .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
        .service-card { background: var(--card-bg); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); border: 1px solid var(--border); transition: var(--transition); }
        .service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
        .service-card .img-wrap { height: 200px; overflow: hidden; }
        .service-card .img-wrap img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
        .service-card:hover .img-wrap img { transform: scale(1.06); }
        .service-card .card-body { padding: 28px; }
        .service-card .card-body h4 { font-size: 1.2rem; font-weight: 600; margin-bottom: 10px; color: var(--text); }
        .service-card .card-body p { font-size: 0.95rem; color: var(--text-secondary); margin-bottom: 16px; }
        .service-card .tag { display: inline-flex; align-items: center; gap: 4px; padding: 4px 12px; border-radius: 50px; font-size: 0.8rem; font-weight: 500; background: var(--primary-bg); color: var(--primary); }

        /* News / CMS List */
        .news-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
        .news-card { background: var(--card-bg); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); border: 1px solid var(--border); transition: var(--transition); display: flex; flex-direction: column; }
        .news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
        .news-card .meta { display: flex; align-items: center; gap: 12px; font-size: 0.85rem; color: var(--text-light); margin-bottom: 10px; }
        .news-card .meta .cat { background: var(--primary-bg); color: var(--primary); padding: 2px 12px; border-radius: 50px; font-weight: 500; }
        .news-card h3 { font-size: 1.15rem; font-weight: 600; margin-bottom: 8px; line-height: 1.4; }
        .news-card h3 a { color: var(--text); }
        .news-card h3 a:hover { color: var(--primary); }
        .news-card p { font-size: 0.95rem; color: var(--text-secondary); margin-bottom: 12px; flex: 1; }
        .news-card .read-more { font-size: 0.9rem; font-weight: 500; color: var(--primary); display: flex; align-items: center; gap: 6px; }
        .news-card .read-more:hover { gap: 12px; color: var(--primary-dark); }
        .empty-news { grid-column: 1 / -1; text-align: center; padding: 40px; color: var(--text-secondary); font-size: 1.05rem; background: var(--card-bg); border-radius: var(--radius); border: 1px dashed var(--border); }

        /* Features */
        .features-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 40px; }
        .feature-item { display: flex; gap: 24px; align-items: flex-start; background: var(--card-bg); padding: 28px; border-radius: var(--radius); box-shadow: var(--shadow); border: 1px solid var(--border); transition: var(--transition); }
        .feature-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
        .feature-item .icon { width: 56px; height: 56px; min-width: 56px; border-radius: var(--radius); display: flex; align-items: center; justify-content: center; font-size: 1.5rem; color: #fff; background: linear-gradient(135deg, var(--primary), var(--primary-light)); }
        .feature-item .icon.alt { background: linear-gradient(135deg, var(--accent), var(--accent-light)); }
        .feature-item h4 { font-size: 1.1rem; font-weight: 600; margin-bottom: 6px; }
        .feature-item p { font-size: 0.95rem; color: var(--text-secondary); }

        /* Process */
        .process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative; }
        .process-step { text-align: center; background: var(--card-bg); padding: 32px 20px; border-radius: var(--radius); box-shadow: var(--shadow); border: 1px solid var(--border); position: relative; transition: var(--transition); }
        .process-step:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
        .process-step .step-num { width: 48px; height: 48px; border-radius: 50%; background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 1.2rem; font-weight: 700; margin: 0 auto 16px; }
        .process-step h4 { font-size: 1.1rem; font-weight: 600; margin-bottom: 8px; }
        .process-step p { font-size: 0.9rem; color: var(--text-secondary); }

        /* FAQ */
        .faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
        .faq-item { background: var(--card-bg); border-radius: var(--radius); border: 1px solid var(--border); overflow: hidden; transition: var(--transition); }
        .faq-item:hover { box-shadow: var(--shadow); }
        .faq-question { display: flex; align-items: center; justify-content: space-between; padding: 20px 24px; font-size: 1.05rem; font-weight: 600; color: var(--text); cursor: pointer; background: none; border: none; width: 100%; text-align: left; transition: var(--transition); }
        .faq-question i { font-size: 1.2rem; color: var(--primary); transition: var(--transition); }
        .faq-question.open i { transform: rotate(180deg); }
        .faq-answer { padding: 0 24px 20px; font-size: 0.95rem; color: var(--text-secondary); line-height: 1.8; display: none; }
        .faq-answer.show { display: block; }

        /* CTA */
        .cta-section { background: linear-gradient(135deg, #0c4a6e 0%, #0e7490 50%, #0891b2 100%); position: relative; overflow: hidden; padding: 80px 0; }
        .cta-section::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat; opacity: 0.12; mix-blend-mode: overlay; }
        .cta-content { position: relative; z-index: 2; text-align: center; color: #fff; }
        .cta-content h2 { font-size: 2.4rem; font-weight: 700; margin-bottom: 16px; }
        .cta-content p { font-size: 1.15rem; color: rgba(255,255,255,0.85); max-width: 560px; margin: 0 auto 32px; }
        .cta-content .btn-primary { font-size: 1.1rem; padding: 16px 40px; }

        /* Footer */
        .site-footer { background: #0f172a; color: rgba(255,255,255,0.70); padding: 60px 0 30px; }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
        .footer-brand .logo { color: #fff; font-size: 1.5rem; margin-bottom: 16px; }
        .footer-brand p { font-size: 0.95rem; line-height: 1.8; max-width: 300px; }
        .footer-col h5 { color: #fff; font-size: 1rem; font-weight: 600; margin-bottom: 16px; }
        .footer-col a { display: block; padding: 4px 0; font-size: 0.9rem; color: rgba(255,255,255,0.60); }
        .footer-col a:hover { color: var(--accent-light); padding-left: 4px; }
        .footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; font-size: 0.85rem; color: rgba(255,255,255,0.45); }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero h1 { font-size: 2.6rem; }
            .hero .container { grid-template-columns: 1fr; gap: 40px; }
            .hero-image { order: -1; }
            .hero-image img { max-width: 400px; margin: 0 auto; transform: none; }
            .hero-float-1 { bottom: 10px; left: 10px; }
            .hero-float-2 { top: 10px; right: 10px; }
            .brand-grid { grid-template-columns: 1fr; gap: 40px; }
            .service-grid { grid-template-columns: repeat(2, 1fr); }
            .features-grid { grid-template-columns: 1fr; }
            .process-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            :root { --header-h: 64px; }
            .nav-list { display: none; position: absolute; top: var(--header-h); left: 0; right: 0; background: rgba(255,255,255,0.98); backdrop-filter: blur(16px); flex-direction: column; padding: 16px 24px; border-bottom: 1px solid var(--border); box-shadow: var(--shadow); }
            .nav-list.open { display: flex; }
            .nav-list a { width: 100%; padding: 12px 16px; border-radius: var(--radius-sm); }
            .nav-toggle { display: block; }
            .hero { min-height: auto; padding: 60px 0; }
            .hero h1 { font-size: 2rem; }
            .hero p { font-size: 1rem; }
            .section { padding: 56px 0; }
            .section-title h2 { font-size: 1.6rem; }
            .service-grid { grid-template-columns: 1fr; }
            .news-grid { grid-template-columns: 1fr; }
            .brand-stats { grid-template-columns: repeat(3, 1fr); gap: 12px; }
            .brand-stat .num { font-size: 1.5rem; }
            .process-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .hero-float { display: none; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .hero h1 { font-size: 1.7rem; }
            .hero-actions { flex-direction: column; }
            .btn { width: 100%; justify-content: center; }
            .brand-stats { grid-template-columns: 1fr; }
            .features-grid { gap: 20px; }
            .feature-item { flex-direction: column; text-align: center; }
            .feature-item .icon { margin: 0 auto; }
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #e85d2c;
            --primary-light: #f07a4a;
            --primary-dark: #c94d1f;
            --secondary: #1a3a5c;
            --secondary-light: #2a5a8c;
            --accent: #f5a623;
            --bg-body: #f8f9fc;
            --bg-white: #ffffff;
            --bg-light: #f0f2f5;
            --bg-dark: #0f1a2e;
            --text-dark: #1a1a2e;
            --text-body: #33334d;
            --text-muted: #6b6b80;
            --text-light: #f0f0f5;
            --border: #e0e2e8;
            --border-light: #eef0f3;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
            --shadow-md: 0 6px 20px rgba(0,0,0,0.07);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.10);
            --shadow-xl: 0 20px 60px rgba(0,0,0,0.12);
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
            --spacing-section: 80px;
            --spacing-block: 48px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-body);
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-dark); }
        button { cursor: pointer; font-family: inherit; border: none; background: none; }
        input, textarea { font-family: inherit; font-size: 1rem; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; color: var(--text-dark); font-weight: 700; }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container { padding: 0 16px; }
            :root { --spacing-section: 48px; --spacing-block: 32px; }
        }

        /* ===== Header & Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
        }
        .logo i { font-size: 1.8rem; color: var(--primary); }
        .logo span { background: linear-gradient(135deg, var(--primary), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .nav-toggle {
            display: none;
            font-size: 1.6rem;
            color: var(--text-dark);
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .nav-toggle:hover { background: var(--bg-light); }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: var(--radius-md);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-body);
            transition: var(--transition);
            position: relative;
        }
        .nav-list a i { font-size: 1rem; color: var(--text-muted); transition: var(--transition); }
        .nav-list a:hover { background: var(--bg-light); color: var(--primary); }
        .nav-list a:hover i { color: var(--primary); }
        .nav-list a.active {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            box-shadow: 0 4px 14px rgba(232,93,44,0.30);
        }
        .nav-list a.active i { color: #fff; }
        @media (max-width: 768px) {
            .nav-toggle { display: block; }
            .nav-list {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px 28px;
                gap: 4px;
                box-shadow: var(--shadow-lg);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                border-bottom: 1px solid var(--border);
                max-height: calc(100vh - var(--header-height));
                overflow-y: auto;
            }
            .nav-list.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-list a {
                padding: 14px 18px;
                font-size: 1.05rem;
                width: 100%;
                border-radius: var(--radius-sm);
            }
        }

        /* ===== Article Hero ===== */
        .article-hero {
            position: relative;
            background: linear-gradient(135deg, var(--bg-dark) 0%, #162d4a 100%);
            padding: 60px 0 80px;
            overflow: hidden;
            min-height: 280px;
            display: flex;
            align-items: center;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.15;
            pointer-events: none;
        }
        .article-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 860px;
        }
        .article-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(232,93,44,0.20);
            color: var(--accent);
            padding: 6px 18px;
            border-radius: 100px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 20px;
            backdrop-filter: blur(4px);
            border: 1px solid rgba(232,93,44,0.25);
        }
        .article-hero .hero-badge i { font-size: 0.8rem; }
        .article-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 20px rgba(0,0,0,0.15);
        }
        .article-hero .hero-meta {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 24px;
            color: rgba(255,255,255,0.75);
            font-size: 0.95rem;
            flex-wrap: wrap;
        }
        .article-hero .hero-meta i { margin-right: 6px; color: var(--accent); }
        .article-hero .hero-meta span { display: flex; align-items: center; }
        @media (max-width: 768px) {
            .article-hero { padding: 40px 0 56px; min-height: 220px; }
            .article-hero h1 { font-size: 1.8rem; }
            .article-hero .hero-meta { gap: 14px; font-size: 0.85rem; flex-direction: column; }
        }

        /* ===== Article Content ===== */
        .article-main {
            padding: 60px 0 var(--spacing-section);
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 48px;
            align-items: start;
        }
        .article-body {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 48px 52px;
            border: 1px solid var(--border-light);
        }
        .article-body .article-summary {
            font-size: 1.15rem;
            line-height: 1.8;
            color: var(--text-muted);
            padding: 20px 24px;
            background: var(--bg-light);
            border-radius: var(--radius-md);
            border-left: 4px solid var(--primary);
            margin-bottom: 32px;
        }
        .article-body .article-content {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text-body);
        }
        .article-body .article-content p {
            margin-bottom: 1.6em;
        }
        .article-body .article-content h2 {
            font-size: 1.6rem;
            margin: 2em 0 0.8em;
            color: var(--text-dark);
        }
        .article-body .article-content h3 {
            font-size: 1.25rem;
            margin: 1.8em 0 0.6em;
            color: var(--text-dark);
        }
        .article-body .article-content ul,
        .article-body .article-content ol {
            padding-left: 1.6em;
            margin-bottom: 1.6em;
        }
        .article-body .article-content li {
            margin-bottom: 0.5em;
            list-style: disc;
        }
        .article-body .article-content blockquote {
            border-left: 4px solid var(--primary);
            background: var(--bg-light);
            padding: 16px 24px;
            margin: 1.6em 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-muted);
            font-style: italic;
        }
        .article-body .article-content img {
            border-radius: var(--radius-md);
            margin: 1.6em 0;
            box-shadow: var(--shadow-sm);
        }
        .article-body .article-content a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .article-body .article-content a:hover { color: var(--primary-dark); }

        /* ===== Article Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            padding: 28px 24px;
        }
        .sidebar-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-dark);
        }
        .sidebar-card h4 i { color: var(--primary); font-size: 1.1rem; }
        .sidebar-list a {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .sidebar-list a:last-child { border-bottom: none; }
        .sidebar-list a:hover { padding-left: 6px; }
        .sidebar-list a .list-img {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--bg-light);
        }
        .sidebar-list a .list-info { flex: 1; }
        .sidebar-list a .list-info .list-title {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-dark);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.4;
        }
        .sidebar-list a .list-info .list-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 4px;
        }
        .sidebar-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .sidebar-tags a {
            display: inline-block;
            padding: 6px 16px;
            background: var(--bg-light);
            border-radius: 100px;
            font-size: 0.82rem;
            color: var(--text-body);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .sidebar-tags a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            padding: 28px 24px;
            border-radius: var(--radius-md);
            text-align: center;
        }
        .sidebar-cta h4 { color: #fff; justify-content: center; }
        .sidebar-cta p { font-size: 0.9rem; opacity: 0.9; margin-bottom: 18px; }
        .sidebar-cta .btn-white {
            display: inline-block;
            padding: 12px 32px;
            background: #fff;
            color: var(--primary);
            border-radius: 100px;
            font-weight: 700;
            font-size: 0.95rem;
            transition: var(--transition);
            box-shadow: 0 4px 12px rgba(0,0,0,0.10);
        }
        .sidebar-cta .btn-white:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.15); color: var(--primary-dark); }

        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; gap: 36px; }
            .article-body { padding: 32px 28px; }
        }
        @media (max-width: 768px) {
            .article-main { padding: 32px 0 var(--spacing-section); }
            .article-body { padding: 24px 18px; border-radius: var(--radius-md); }
            .article-body .article-summary { font-size: 1rem; padding: 16px 18px; }
            .sidebar-card { padding: 20px 18px; }
        }

        /* ===== Article Nav Bottom ===== */
        .article-nav-bottom {
            margin-top: 48px;
            display: flex;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .article-nav-bottom a {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 12px 24px;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            font-weight: 500;
            color: var(--text-body);
            transition: var(--transition);
            font-size: 0.95rem;
        }
        .article-nav-bottom a:hover { border-color: var(--primary); color: var(--primary); box-shadow: var(--shadow-sm); }
        .article-nav-bottom a i { font-size: 0.9rem; }

        /* ===== Not Found ===== */
        .not-found-box {
            text-align: center;
            padding: 80px 20px;
        }
        .not-found-box .nf-icon {
            font-size: 4rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            opacity: 0.5;
        }
        .not-found-box h2 { font-size: 1.8rem; color: var(--text-dark); margin-bottom: 12px; }
        .not-found-box p { color: var(--text-muted); margin-bottom: 28px; font-size: 1.05rem; }
        .not-found-box .btn-home {
            display: inline-block;
            padding: 14px 40px;
            background: var(--primary);
            color: #fff;
            border-radius: 100px;
            font-weight: 700;
            font-size: 1rem;
            transition: var(--transition);
            box-shadow: 0 4px 14px rgba(232,93,44,0.30);
        }
        .not-found-box .btn-home:hover { transform: translateY(-3px); box-shadow: 0 8px 28px rgba(232,93,44,0.35); }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.75);
            padding: 56px 0 0;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .site-footer .footer-brand .logo { font-size: 1.5rem; margin-bottom: 14px; }
        .site-footer .footer-brand .logo span { -webkit-text-fill-color: #fff; background: none; }
        .site-footer .footer-brand p { font-size: 0.9rem; line-height: 1.7; opacity: 0.8; max-width: 320px; }
        .site-footer .footer-col h5 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }
        .site-footer .footer-col a {
            display: block;
            color: rgba(255,255,255,0.65);
            font-size: 0.9rem;
            padding: 5px 0;
            transition: var(--transition);
        }
        .site-footer .footer-col a:hover { color: var(--accent); padding-left: 4px; }
        .site-footer .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.45);
            flex-wrap: wrap;
            gap: 12px;
        }
        @media (max-width: 768px) {
            .site-footer .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
            .site-footer .footer-brand { grid-column: 1 / -1; }
        }
        @media (max-width: 520px) {
            .site-footer .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .site-footer .footer-bottom { flex-direction: column; text-align: center; }
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            padding: 16px 0 0;
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .breadcrumb a { color: var(--text-muted); }
        .breadcrumb a:hover { color: var(--primary); }
        .breadcrumb i { font-size: 0.7rem; color: var(--border); }
        .breadcrumb .current { color: var(--text-dark); font-weight: 500; }

        /* ===== Utility ===== */
        .text-center { text-align: center; }
        .mt-2 { margin-top: 20px; }
        .mb-2 { margin-bottom: 20px; }
        .gap-2 { gap: 20px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #0f6cbf;
            --primary-light: #3b8de6;
            --primary-dark: #0a4d8a;
            --secondary: #f59e42;
            --secondary-light: #fbbf6e;
            --secondary-dark: #d9822b;
            --accent: #10b981;
            --bg: #f5f7fa;
            --bg-card: #ffffff;
            --bg-dark: #1a2332;
            --bg-dark-light: #243044;
            --text: #1a2332;
            --text-light: #5a6a7a;
            --text-white: #f0f4f8;
            --border: #e2e8f0;
            --border-light: #f0f2f5;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow: 0 4px 20px rgba(15, 108, 191, 0.08);
            --shadow-hover: 0 12px 40px rgba(15, 108, 191, 0.16);
            --shadow-lg: 0 20px 60px rgba(15, 108, 191, 0.12);
            --transition: 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;
            --header-h: 76px;
        }

        /* ===== 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 {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
        }
        p {
            margin-bottom: 1rem;
            color: var(--text-light);
        }
        :focus-visible {
            outline: 3px solid var(--primary-light);
            outline-offset: 2px;
        }

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

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-h);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
        }
        .logo i {
            font-size: 1.8rem;
            color: var(--secondary);
            transition: var(--transition);
        }
        .logo:hover i {
            transform: rotate(-8deg) scale(1.1);
        }
        .logo span {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-toggle {
            display: none;
            font-size: 1.6rem;
            color: var(--text);
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            background: var(--border-light);
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: var(--border);
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 50px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-light);
            transition: var(--transition);
            position: relative;
        }
        .nav-list a i {
            font-size: 0.9rem;
        }
        .nav-list a:hover {
            color: var(--primary);
            background: rgba(15, 108, 191, 0.06);
        }
        .nav-list a.active {
            color: var(--primary);
            background: rgba(15, 108, 191, 0.1);
            font-weight: 600;
        }
        .nav-list a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 3px;
        }

        /* ===== Hero / Banner ===== */
        .page-hero {
            margin-top: var(--header-h);
            padding: 80px 0 64px;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, 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-1.png') center center / cover no-repeat;
            opacity: 0.18;
            pointer-events: none;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(to top, var(--bg), transparent);
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-hero h1 {
            font-size: 3.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
        }
        .page-hero h1 i {
            color: var(--secondary);
            margin-right: 12px;
        }
        .page-hero p {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.88);
            max-width: 640px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        .hero-search {
            display: flex;
            max-width: 520px;
            margin: 0 auto;
            background: #fff;
            border-radius: 50px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
            overflow: hidden;
            transition: var(--transition);
        }
        .hero-search:focus-within {
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.2);
            transform: scale(1.01);
        }
        .hero-search input {
            flex: 1;
            padding: 14px 24px;
            border: none;
            background: transparent;
            font-size: 1rem;
            color: var(--text);
        }
        .hero-search input::placeholder {
            color: #aab;
        }
        .hero-search button {
            padding: 14px 28px;
            background: var(--secondary);
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .hero-search button:hover {
            background: var(--secondary-dark);
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            padding: 20px 0 0;
            font-size: 0.9rem;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-light);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb span {
            color: var(--primary);
            font-weight: 500;
        }
        .breadcrumb i {
            font-size: 0.7rem;
            color: #ccc;
        }

        /* ===== Section Common ===== */
        .section {
            padding: 72px 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 12px;
            color: var(--text);
        }
        .section-header h2 i {
            color: var(--secondary);
            margin-right: 8px;
        }
        .section-header p {
            font-size: 1.05rem;
            max-width: 560px;
            margin: 0 auto;
            color: var(--text-light);
        }
        .section-header .tagline {
            display: inline-block;
            padding: 4px 16px;
            background: rgba(15, 108, 191, 0.08);
            color: var(--primary);
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        /* ===== Card Grid ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 28px;
        }
        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: var(--transition);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border);
        }
        .card-img {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--border-light);
        }
        .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .card:hover .card-img img {
            transform: scale(1.05);
        }
        .card-body {
            padding: 20px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-body .tag {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(15, 108, 191, 0.08);
            color: var(--primary);
            margin-bottom: 8px;
            align-self: flex-start;
        }
        .card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
            line-height: 1.4;
        }
        .card-body p {
            font-size: 0.92rem;
            color: var(--text-light);
            margin-bottom: 0;
            flex: 1;
        }
        .card-body .meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.8rem;
            color: #aab;
            margin-top: 16px;
            padding-top: 12px;
            border-top: 1px solid var(--border-light);
        }
        .card-body .meta i {
            margin-right: 4px;
        }
        .card-cta {
            margin-top: 16px;
            display: flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            color: var(--primary);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .card-cta i {
            transition: var(--transition);
        }
        .card:hover .card-cta i {
            transform: translateX(4px);
        }

        /* ===== Tag Filter ===== */
        .tag-filter {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-bottom: 40px;
        }
        .tag-filter a {
            padding: 8px 20px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-light);
            background: var(--bg-card);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .tag-filter a:hover,
        .tag-filter a.active {
            color: var(--primary);
            background: rgba(15, 108, 191, 0.08);
            border-color: var(--primary-light);
        }
        .tag-filter a i {
            margin-right: 6px;
            font-size: 0.8rem;
        }

        /* ===== Featured Card (large) ===== */
        .featured-card {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .featured-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .featured-card .fc-img {
            aspect-ratio: 16 / 11;
            overflow: hidden;
            background: var(--border-light);
            min-height: 280px;
        }
        .featured-card .fc-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .featured-card:hover .fc-img img {
            transform: scale(1.03);
        }
        .featured-card .fc-body {
            padding: 32px 32px 32px 0;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .featured-card .fc-body .tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            background: var(--secondary);
            color: #fff;
            margin-bottom: 12px;
            align-self: flex-start;
        }
        .featured-card .fc-body h3 {
            font-size: 1.6rem;
            font-weight: 800;
            margin-bottom: 12px;
        }
        .featured-card .fc-body p {
            font-size: 0.98rem;
            color: var(--text-light);
            margin-bottom: 20px;
            line-height: 1.7;
        }
        .featured-card .fc-body .btn {
            align-self: flex-start;
        }

        /* ===== Button ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            border: none;
            cursor: pointer;
            text-decoration: none;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(15, 108, 191, 0.25);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(15, 108, 191, 0.35);
        }
        .btn-secondary {
            background: var(--secondary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(245, 158, 66, 0.25);
        }
        .btn-secondary:hover {
            background: var(--secondary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(245, 158, 66, 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-lg {
            padding: 16px 36px;
            font-size: 1.05rem;
        }

        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 24px;
            text-align: center;
        }
        .stat-item {
            background: var(--bg-card);
            padding: 32px 16px;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .stat-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .stat-item .num {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-item .num i {
            color: var(--secondary);
            font-size: 2rem;
            margin-right: 6px;
        }
        .stat-item .label {
            font-size: 0.95rem;
            color: var(--text-light);
            margin-top: 6px;
        }

        /* ===== Steps / Process ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 32px;
            counter-reset: step;
        }
        .step-item {
            text-align: center;
            padding: 32px 20px;
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            position: relative;
        }
        .step-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .step-item::before {
            counter-increment: step;
            content: counter(step);
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(15, 108, 191, 0.25);
        }
        .step-item .icon {
            font-size: 2.4rem;
            color: var(--secondary);
            margin-bottom: 16px;
            margin-top: 8px;
        }
        .step-item h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-bottom: 0;
        }

        /* ===== 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-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border);
        }
        .faq-q {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text);
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            gap: 12px;
            user-select: none;
            transition: var(--transition);
        }
        .faq-q:hover {
            color: var(--primary);
        }
        .faq-q i {
            color: var(--primary);
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .faq-item.open .faq-q i {
            transform: rotate(45deg);
        }
        .faq-a {
            padding: 0 24px 20px;
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-a {
            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-2.png') center center / cover no-repeat;
            opacity: 0.08;
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 2.4rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto 28px;
        }
        .cta-section .btn {
            font-size: 1.05rem;
            padding: 16px 40px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-white);
            padding: 60px 0 0;
        }
        .site-footer .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-brand .logo {
            font-size: 1.5rem;
            margin-bottom: 16px;
            color: #fff;
        }
        .footer-brand .logo span {
            -webkit-text-fill-color: #fff;
            background: none;
        }
        .footer-brand p {
            font-size: 0.92rem;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
            line-height: 1.7;
            margin-bottom: 0;
        }
        .footer-col h5 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
            letter-spacing: 0.3px;
        }
        .footer-col a {
            display: block;
            font-size: 0.9rem;
            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 {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 24px 0;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.35);
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom span:last-child {
            color: var(--secondary);
            font-weight: 500;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .featured-card .fc-body {
                padding: 24px 24px 24px 0;
            }
            .featured-card .fc-body h3 {
                font-size: 1.3rem;
            }
        }
        @media (max-width: 768px) {
            :root {
                --header-h: 64px;
            }
            .site-header .container {
                padding: 0 16px;
            }
            .nav-toggle {
                display: block;
            }
            .nav-list {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(12px);
                -webkit-backdrop-filter: blur(12px);
                flex-direction: column;
                padding: 16px 24px 24px;
                gap: 4px;
                box-shadow: 0 16px 40px rgba(0, 0, 0, 0.1);
                transform: translateY(-120%);
                opacity: 0;
                transition: var(--transition);
                border-radius: 0 0 var(--radius) var(--radius);
                pointer-events: none;
            }
            .nav-list.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-list a {
                padding: 12px 16px;
                border-radius: var(--radius-sm);
                width: 100%;
                font-size: 1rem;
            }
            .nav-list a.active::after {
                display: none;
            }
            .page-hero {
                padding: 60px 0 48px;
                min-height: 260px;
            }
            .page-hero h1 {
                font-size: 2rem;
            }
            .page-hero p {
                font-size: 1rem;
            }
            .hero-search {
                flex-direction: column;
                border-radius: var(--radius-sm);
            }
            .hero-search input {
                padding: 14px 18px;
            }
            .hero-search button {
                padding: 12px 18px;
                justify-content: center;
            }
            .section {
                padding: 48px 0;
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
            .card-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .featured-card {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .featured-card .fc-img {
                min-height: 200px;
            }
            .featured-card .fc-body {
                padding: 24px;
            }
            .featured-card .fc-body h3 {
                font-size: 1.2rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-item .num {
                font-size: 2rem;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
            .breadcrumb {
                font-size: 0.8rem;
                padding: 16px 0 0;
            }
            .tag-filter {
                gap: 8px;
            }
            .tag-filter a {
                font-size: 0.8rem;
                padding: 6px 14px;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .cta-section p {
                font-size: 1rem;
            }
            .btn-lg {
                padding: 14px 28px;
                font-size: 0.95rem;
            }
        }
        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 1.6rem;
            }
            .page-hero p {
                font-size: 0.9rem;
            }
            .section-header h2 {
                font-size: 1.3rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-item {
                padding: 20px 12px;
            }
            .stat-item .num {
                font-size: 1.6rem;
            }
            .card-body {
                padding: 16px 18px 20px;
            }
            .footer-grid {
                gap: 20px;
            }
        }

        /* ===== Smooth scroll offset ===== */
        .scroll-offset {
            scroll-margin-top: calc(var(--header-h) + 20px);
        }

        /* ===== Utility ===== */
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mb-32 {
            margin-bottom: 32px;
        }
        .gap-8 {
            gap: 8px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }