/* roulang page: index */
:root {
            --primary: #c3834a;
            --primary-dark: #a06a3a;
            --primary-light: #e8d5b8;
            --accent: #2c3e50;
            --accent-light: #4a6a8a;
            --bg-light: #faf7f2;
            --bg-white: #ffffff;
            --text-dark: #1a1a2e;
            --text-muted: #6b7280;
            --text-light: #9ca3af;
            --border: #e5e0d8;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 8px 24px rgba(0,0,0,0.10);
            --shadow-lg: 0 16px 40px rgba(0,0,0,0.12);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            background: var(--bg-light);
            color: var(--text-dark);
            line-height: 1.7;
        }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea { font-family: inherit; transition: var(--transition); }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        @media (max-width: 768px) { .container { padding: 0 16px; } }

        /* Splitscreen Hero Nav */
        .split-hero {
            display: flex; min-height: 100vh; position: relative; overflow: hidden;
        }
        .split-left {
            flex: 1; display: flex; flex-direction: column; justify-content: center;
            padding: 40px 56px; background: var(--bg-white); position: relative; z-index: 2;
        }
        .split-right {
            flex: 1; position: relative; overflow: hidden; background: var(--primary-light);
        }
        .split-right .bg-img {
            position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
            transition: transform 0.6s ease;
        }
        .split-right:hover .bg-img { transform: scale(1.03); }
        .split-nav {
            position: absolute; top: 0; left: 0; right: 0; z-index: 10;
            display: flex; align-items: center; justify-content: space-between;
            padding: 20px 56px; background: linear-gradient(180deg, rgba(255,255,255,0.92) 0%, rgba(255,255,255,0) 100%);
            backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
        }
        .split-nav .logo { font-size: 1.4rem; font-weight: 700; color: var(--primary-dark); letter-spacing: -0.02em; }
        .split-nav .logo span { color: var(--accent); }
        .nav-links { display: flex; align-items: center; gap: 32px; }
        .nav-links a {
            font-size: 0.95rem; font-weight: 500; color: var(--text-dark); position: relative;
            padding: 4px 0; letter-spacing: 0.01em;
        }
        .nav-links a::after {
            content: ''; position: absolute; bottom: -2px; left: 0; width: 0; height: 2px;
            background: var(--primary); transition: var(--transition); border-radius: 1px;
        }
        .nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
        .nav-links a.active { color: var(--primary-dark); font-weight: 600; }
        .nav-cta a {
            display: inline-flex; align-items: center; gap: 8px;
            background: var(--primary); color: #fff !important; padding: 10px 24px;
            border-radius: 50px; font-weight: 600; font-size: 0.9rem;
            box-shadow: 0 4px 12px rgba(195,131,74,0.3); transition: var(--transition);
        }
        .nav-cta a:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(195,131,74,0.4); }
        .mobile-toggle { display: none; background: none; border: none; font-size: 1.5rem; color: var(--text-dark); cursor: pointer; padding: 4px; }
        .hero-content { max-width: 560px; }
        .hero-content .badge {
            display: inline-block; background: var(--primary-light); color: var(--primary-dark);
            padding: 6px 16px; border-radius: 50px; font-size: 0.8rem; font-weight: 600;
            margin-bottom: 20px; letter-spacing: 0.04em;
        }
        .hero-content h1 {
            font-size: 3.2rem; font-weight: 800; line-height: 1.2; color: var(--text-dark);
            letter-spacing: -0.03em; margin-bottom: 20px;
        }
        .hero-content h1 .highlight { color: var(--primary); }
        .hero-content p {
            font-size: 1.05rem; color: var(--text-muted); line-height: 1.8;
            margin-bottom: 32px; max-width: 480px;
        }
        .hero-btns { display: flex; flex-wrap: wrap; gap: 16px; }
        .hero-btns .btn-primary {
            background: var(--primary); color: #fff; padding: 14px 36px; border-radius: 50px;
            font-weight: 600; font-size: 1rem; display: inline-flex; align-items: center; gap: 10px;
            box-shadow: 0 6px 20px rgba(195,131,74,0.35); transition: var(--transition); border: none; cursor: pointer;
        }
        .hero-btns .btn-primary:hover { background: var(--primary-dark); transform: translateY(-3px); box-shadow: 0 10px 28px rgba(195,131,74,0.45); }
        .hero-btns .btn-secondary {
            background: transparent; color: var(--text-dark); padding: 14px 36px; border-radius: 50px;
            font-weight: 600; font-size: 1rem; display: inline-flex; align-items: center; gap: 10px;
            border: 2px solid var(--border); transition: var(--transition); cursor: pointer;
        }
        .hero-btns .btn-secondary:hover { border-color: var(--primary); color: var(--primary); background: rgba(195,131,74,0.05); transform: translateY(-3px); }
        .hero-stats { display: flex; gap: 40px; margin-top: 40px; padding-top: 28px; border-top: 1px solid var(--border); }
        .hero-stats .stat-item { text-align: left; }
        .hero-stats .stat-number { font-size: 1.8rem; font-weight: 800; color: var(--text-dark); line-height: 1.2; }
        .hero-stats .stat-label { font-size: 0.85rem; color: var(--text-muted); font-weight: 500; }

        /* Section spacing */
        .section { padding: 100px 0; }
        .section-header { text-align: center; max-width: 720px; margin: 0 auto 56px; }
        .section-header h2 { font-size: 2.4rem; font-weight: 800; color: var(--text-dark); letter-spacing: -0.02em; margin-bottom: 16px; }
        .section-header p { font-size: 1.05rem; color: var(--text-muted); line-height: 1.8; }
        .section-header .subtitle { display: inline-block; color: var(--primary); font-weight: 600; font-size: 0.9rem; letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 8px; }

        /* Features grid */
        .features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
        .feature-card {
            background: var(--bg-white); border-radius: var(--radius-md); padding: 36px 28px;
            box-shadow: var(--shadow-sm); border: 1px solid var(--border); transition: var(--transition);
        }
        .feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--primary-light); }
        .feature-card .icon-box {
            width: 56px; height: 56px; border-radius: 14px; display: flex; align-items: center; justify-content: center;
            font-size: 1.5rem; color: #fff; margin-bottom: 20px; background: var(--primary);
        }
        .feature-card .icon-box.purple { background: #7c5cbf; }
        .feature-card .icon-box.teal { background: #3b8b8b; }
        .feature-card h3 { font-size: 1.25rem; font-weight: 700; margin-bottom: 12px; color: var(--text-dark); }
        .feature-card p { font-size: 0.95rem; color: var(--text-muted); line-height: 1.7; }

        /* About / intro split */
        .about-split { display: flex; align-items: center; gap: 60px; }
        .about-split .about-image { flex: 1; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-md); }
        .about-split .about-image img { width: 100%; height: 420px; object-fit: cover; transition: transform 0.6s ease; }
        .about-split .about-image:hover img { transform: scale(1.03); }
        .about-split .about-text { flex: 1; }
        .about-split .about-text h2 { font-size: 2rem; font-weight: 800; margin-bottom: 20px; letter-spacing: -0.02em; }
        .about-split .about-text p { font-size: 1rem; color: var(--text-muted); line-height: 1.8; margin-bottom: 16px; }
        .about-split .about-text .about-list { list-style: none; padding: 0; margin-top: 20px; }
        .about-split .about-text .about-list li { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 12px; font-size: 0.95rem; color: var(--text-dark); }
        .about-split .about-text .about-list li i { color: var(--primary); font-size: 1rem; margin-top: 4px; }

        /* Steps / timeline */
        .steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative; }
        .steps-grid::before {
            content: ''; position: absolute; top: 40px; left: 10%; right: 10%; height: 2px;
            background: linear-gradient(90deg, var(--primary-light), var(--primary), var(--primary-light));
            z-index: 0;
        }
        .step-card {
            background: var(--bg-white); border-radius: var(--radius-md); padding: 32px 20px;
            text-align: center; box-shadow: var(--shadow-sm); border: 1px solid var(--border);
            position: relative; z-index: 1; transition: var(--transition);
        }
        .step-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
        .step-card .step-number {
            width: 48px; height: 48px; border-radius: 50%; background: var(--primary); color: #fff;
            display: flex; align-items: center; justify-content: center; font-size: 1.2rem; font-weight: 700;
            margin: 0 auto 16px; box-shadow: 0 4px 12px rgba(195,131,74,0.3);
        }
        .step-card h4 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
        .step-card p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; }

        /* Content list (CMS) */
        .content-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
        .content-card {
            background: var(--bg-white); border-radius: var(--radius-md); overflow: hidden;
            box-shadow: var(--shadow-sm); border: 1px solid var(--border); transition: var(--transition);
            display: flex; flex-direction: column;
        }
        .content-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
        .content-card .card-img { height: 200px; overflow: hidden; }
        .content-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
        .content-card:hover .card-img img { transform: scale(1.05); }
        .content-card .card-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
        .content-card .card-cat {
            display: inline-block; background: var(--primary-light); color: var(--primary-dark);
            padding: 2px 12px; border-radius: 50px; font-size: 0.75rem; font-weight: 600;
            margin-bottom: 10px; align-self: flex-start;
        }
        .content-card .card-body h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; line-height: 1.4; }
        .content-card .card-body h3 a { color: var(--text-dark); }
        .content-card .card-body h3 a:hover { color: var(--primary); }
        .content-card .card-body p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.7; flex: 1; }
        .content-card .card-meta { display: flex; align-items: center; gap: 16px; margin-top: 16px; font-size: 0.8rem; color: var(--text-light); }
        .content-card .card-meta i { margin-right: 4px; }
        .empty-list { grid-column: 1 / -1; text-align: center; padding: 48px 20px; color: var(--text-muted); font-size: 1rem; background: var(--bg-white); border-radius: var(--radius-md); border: 1px dashed var(--border); }

        /* FAQ */
        .faq-grid { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
        .faq-item { background: var(--bg-white); border-radius: var(--radius-sm); border: 1px solid var(--border); overflow: hidden; transition: var(--transition); }
        .faq-item:hover { border-color: var(--primary-light); }
        .faq-question {
            width: 100%; display: flex; align-items: center; justify-content: space-between;
            padding: 20px 24px; background: none; border: none; cursor: pointer;
            font-size: 1rem; font-weight: 600; color: var(--text-dark); text-align: left;
            gap: 16px;
        }
        .faq-question i { color: var(--primary); font-size: 0.9rem; transition: var(--transition); flex-shrink: 0; }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.3s ease; padding: 0 24px; }
        .faq-item.open .faq-answer { max-height: 300px; padding: 0 24px 20px; }
        .faq-answer p { font-size: 0.95rem; color: var(--text-muted); line-height: 1.7; }

        /* CTA */
        .cta-section {
            background: var(--accent); border-radius: var(--radius-lg); padding: 72px 56px;
            text-align: center; position: relative; overflow: hidden;
        }
        .cta-section::before {
            content: ''; position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.10; z-index: 0;
        }
        .cta-section > * { position: relative; z-index: 1; }
        .cta-section h2 { font-size: 2.2rem; font-weight: 800; color: #fff; margin-bottom: 16px; letter-spacing: -0.02em; }
        .cta-section p { font-size: 1.05rem; color: rgba(255,255,255,0.75); max-width: 560px; margin: 0 auto 32px; line-height: 1.8; }
        .cta-section .cta-btn {
            display: inline-flex; align-items: center; gap: 10px;
            background: var(--primary); color: #fff; padding: 16px 44px; border-radius: 50px;
            font-weight: 600; font-size: 1.05rem; transition: var(--transition);
            box-shadow: 0 6px 20px rgba(195,131,74,0.3);
        }
        .cta-section .cta-btn:hover { background: var(--primary-dark); transform: translateY(-3px); box-shadow: 0 10px 28px rgba(195,131,74,0.5); }

        /* Footer */
        .footer { background: var(--text-dark); color: rgba(255,255,255,0.7); padding: 64px 0 32px; }
        .footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
        .footer-brand .logo-footer { font-size: 1.3rem; font-weight: 700; color: #fff; margin-bottom: 12px; }
        .footer-brand .logo-footer span { color: var(--primary); }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; max-width: 320px; }
        .footer-col h4 { font-size: 0.95rem; font-weight: 700; color: #fff; margin-bottom: 16px; }
        .footer-col ul { list-style: none; padding: 0; }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a { font-size: 0.9rem; color: rgba(255,255,255,0.6); transition: var(--transition); }
        .footer-col ul li a:hover { color: var(--primary); }
        .footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; font-size: 0.85rem; color: rgba(255,255,255,0.5); }
        .footer-socials { display: flex; gap: 16px; }
        .footer-socials 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); font-size: 1rem; transition: var(--transition); }
        .footer-socials a:hover { background: var(--primary); color: #fff; transform: translateY(-3px); }

        /* Responsive */
        @media (max-width: 1024px) {
            .split-hero { flex-direction: column; min-height: auto; }
            .split-left { padding: 100px 32px 60px; }
            .split-right { min-height: 360px; }
            .split-nav { padding: 16px 32px; }
            .hero-content h1 { font-size: 2.6rem; }
            .features-grid { grid-template-columns: repeat(2, 1fr); }
            .steps-grid { grid-template-columns: repeat(2, 1fr); }
            .steps-grid::before { display: none; }
            .footer-top { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .split-left { padding: 80px 20px 40px; }
            .split-right { min-height: 260px; }
            .split-nav { padding: 12px 20px; flex-wrap: wrap; }
            .nav-links { display: none; }
            .nav-links.open { display: flex; flex-direction: column; width: 100%; background: rgba(255,255,255,0.98); position: absolute; top: 100%; left: 0; padding: 16px 20px; gap: 16px; border-radius: 0 0 var(--radius-md) var(--radius-md); box-shadow: var(--shadow-md); }
            .mobile-toggle { display: block; }
            .hero-content h1 { font-size: 2rem; }
            .hero-content p { font-size: 0.95rem; }
            .hero-stats { gap: 24px; flex-wrap: wrap; }
            .hero-stats .stat-number { font-size: 1.4rem; }
            .section { padding: 60px 0; }
            .section-header h2 { font-size: 1.8rem; }
            .features-grid { grid-template-columns: 1fr; }
            .about-split { flex-direction: column; gap: 32px; }
            .about-split .about-image img { height: 280px; }
            .content-grid { grid-template-columns: 1fr; }
            .steps-grid { grid-template-columns: 1fr; }
            .cta-section { padding: 48px 24px; }
            .cta-section h2 { font-size: 1.6rem; }
            .footer-top { grid-template-columns: 1fr; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .hero-btns { flex-direction: column; align-items: stretch; }
            .hero-btns .btn-primary, .hero-btns .btn-secondary { justify-content: center; }
        }
        @media (max-width: 520px) {
            .split-left { padding: 72px 16px 32px; }
            .hero-content h1 { font-size: 1.6rem; }
            .hero-stats { gap: 16px; }
            .hero-stats .stat-item { flex: 1; min-width: 80px; }
            .feature-card { padding: 24px 16px; }
            .faq-question { font-size: 0.9rem; padding: 16px 16px; }
            .faq-answer { padding: 0 16px; }
            .faq-item.open .faq-answer { padding: 0 16px 16px; }
        }

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

        /* Focus accessible */
        a:focus-visible, button:focus-visible, input:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 4px; }

/* roulang page: article */
:root {
            --primary: #D43F3A;
            --primary-dark: #b5302b;
            --secondary: #2D8B4E;
            --gold: #D4A843;
            --dark: #1a1a2e;
            --cream: #f8f6f3;
            --white: #ffffff;
            --text: #1e1e2f;
            --text-weak: #6b7280;
            --border: #e5e7eb;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 8px 30px rgba(0,0,0,0.08);
            --shadow-lg: 0 20px 50px rgba(0,0,0,0.12);
            --transition: all 0.3s ease;
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body { font-family: 'PingFang SC','Microsoft YaHei','Helvetica Neue',sans-serif; color: var(--text); background: var(--cream); line-height: 1.7; -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); }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        .container-narrow { max-width: 860px; margin: 0 auto; padding: 0 24px; }

        /* Header & Nav */
        .site-header { background: var(--white); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100; box-shadow: 0 2px 16px rgba(0,0,0,0.04); }
        .header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
        .logo { font-size: 1.6rem; font-weight: 800; letter-spacing: -0.3px; background: linear-gradient(135deg, var(--primary), var(--gold)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .logo span { font-weight: 400; font-size: 0.85rem; background: none; -webkit-text-fill-color: var(--text-weak); color: var(--text-weak); }
        .nav-links { display: flex; align-items: center; gap: 8px; }
        .nav-links a { padding: 8px 20px; border-radius: 30px; font-size: 0.95rem; font-weight: 500; color: var(--text); transition: var(--transition); position: relative; }
        .nav-links a:hover { background: rgba(212,63,58,0.06); color: var(--primary); }
        .nav-links a.active { background: var(--primary); color: var(--white); box-shadow: 0 4px 14px rgba(212,63,58,0.3); }
        .nav-cta { background: var(--primary) !important; color: var(--white) !important; padding: 8px 24px !important; border-radius: 30px !important; box-shadow: 0 4px 14px rgba(212,63,58,0.25); }
        .nav-cta:hover { background: var(--primary-dark) !important; transform: translateY(-1px); box-shadow: 0 6px 20px rgba(212,63,58,0.35) !important; }
        .menu-toggle { display: none; background: none; border: none; font-size: 1.5rem; color: var(--text); cursor: pointer; padding: 8px; }

        /* Hero Banner */
        .article-hero { position: relative; min-height: 420px; display: flex; align-items: center; justify-content: center; text-align: center; background: var(--dark); overflow: hidden; padding: 80px 24px 60px; }
        .article-hero-bg { position: absolute; inset: 0; background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat; filter: brightness(0.35) saturate(0.8); transform: scale(1.05); transition: transform 0.6s ease; }
        .article-hero:hover .article-hero-bg { transform: scale(1.08); }
        .article-hero-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(26,26,46,0.6) 0%, rgba(26,26,46,0.9) 100%); }
        .article-hero-content { position: relative; z-index: 2; max-width: 800px; }
        .article-hero .category-badge { display: inline-block; background: rgba(212,63,58,0.9); color: var(--white); padding: 6px 20px; border-radius: 30px; font-size: 0.85rem; font-weight: 600; letter-spacing: 0.5px; margin-bottom: 20px; backdrop-filter: blur(4px); }
        .article-hero h1 { font-size: 2.8rem; font-weight: 800; color: var(--white); line-height: 1.25; margin-bottom: 16px; text-shadow: 0 2px 20px rgba(0,0,0,0.3); }
        .article-hero .meta { color: rgba(255,255,255,0.7); font-size: 0.95rem; display: flex; align-items: center; justify-content: center; gap: 16px; flex-wrap: wrap; }
        .article-hero .meta i { margin-right: 4px; }
        .article-hero .meta span { display: inline-flex; align-items: center; }

        /* Article Body */
        .article-body-wrap { background: var(--white); padding: 48px 0 40px; }
        .article-body { font-size: 1.05rem; line-height: 1.9; color: #2d2d3f; }
        .article-body p { margin-bottom: 1.4em; }
        .article-body h2 { font-size: 1.7rem; font-weight: 700; margin: 2em 0 0.6em; color: var(--dark); }
        .article-body h3 { font-size: 1.3rem; font-weight: 600; margin: 1.6em 0 0.5em; color: var(--dark); }
        .article-body ul, .article-body ol { margin-bottom: 1.4em; padding-left: 1.6em; }
        .article-body li { margin-bottom: 0.4em; }
        .article-body img { border-radius: var(--radius-sm); margin: 1.6em 0; box-shadow: var(--shadow); }
        .article-body blockquote { border-left: 4px solid var(--primary); background: var(--cream); padding: 16px 24px; margin: 1.6em 0; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; color: #4a4a5a; }
        .article-body a { color: var(--primary); border-bottom: 1px solid transparent; }
        .article-body a:hover { border-bottom-color: var(--primary); }
        .article-body code { background: #f1f1f4; padding: 2px 10px; border-radius: 6px; font-size: 0.9em; }
        .article-body pre { background: var(--dark); color: #e8e8f0; padding: 20px 24px; border-radius: var(--radius-sm); overflow-x: auto; margin: 1.6em 0; font-size: 0.9em; }

        .article-not-found { text-align: center; padding: 80px 24px; }
        .article-not-found .icon { font-size: 4rem; color: var(--text-weak); margin-bottom: 24px; }
        .article-not-found h2 { font-size: 1.8rem; font-weight: 700; margin-bottom: 12px; }
        .article-not-found p { color: var(--text-weak); margin-bottom: 24px; }
        .article-not-found .btn-back { display: inline-block; background: var(--primary); color: var(--white); padding: 12px 32px; border-radius: 30px; font-weight: 600; }

        /* Tags & Share */
        .article-footer-bar { border-top: 1px solid var(--border); margin-top: 32px; padding-top: 24px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
        .article-tags { display: flex; gap: 8px; flex-wrap: wrap; }
        .article-tags .tag { background: var(--cream); color: var(--text); padding: 4px 16px; border-radius: 20px; font-size: 0.85rem; border: 1px solid var(--border); transition: var(--transition); }
        .article-tags .tag:hover { border-color: var(--primary); color: var(--primary); }
        .share-links { display: flex; gap: 10px; }
        .share-links a { width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; border-radius: 50%; background: var(--cream); color: var(--text); border: 1px solid var(--border); transition: var(--transition); font-size: 1rem; }
        .share-links a:hover { background: var(--primary); color: var(--white); border-color: var(--primary); transform: translateY(-2px); }

        /* Section通用 */
        .section { padding: 72px 0; }
        .section-title { text-align: center; margin-bottom: 48px; }
        .section-title h2 { font-size: 2rem; font-weight: 800; color: var(--dark); margin-bottom: 12px; }
        .section-title p { color: var(--text-weak); max-width: 600px; margin: 0 auto; font-size: 1.05rem; }
        .section-title .line { width: 60px; height: 4px; background: linear-gradient(90deg, var(--primary), var(--gold)); border-radius: 4px; margin: 12px auto 0; }

        /* Cards */
        .card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
        .card { background: var(--white); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: var(--transition); border: 1px solid rgba(0,0,0,0.04); }
        .card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
        .card-img { width: 100%; height: 200px; object-fit: cover; border-radius: 0; }
        .card-body { padding: 24px; }
        .card-body h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 8px; color: var(--dark); }
        .card-body p { font-size: 0.92rem; color: var(--text-weak); line-height: 1.6; }
        .card-body .card-link { display: inline-flex; align-items: center; gap: 6px; margin-top: 12px; color: var(--primary); font-weight: 600; font-size: 0.9rem; }
        .card-body .card-link i { font-size: 0.8rem; transition: var(--transition); }
        .card-body .card-link:hover i { transform: translateX(4px); }

        /* Steps */
        .steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
        .step-card { text-align: center; padding: 32px 20px; background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow); border: 1px solid rgba(0,0,0,0.04); transition: var(--transition); position: relative; }
        .step-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
        .step-num { width: 56px; height: 56px; border-radius: 50%; background: linear-gradient(135deg, var(--primary), var(--gold)); color: var(--white); display: flex; align-items: center; justify-content: center; font-size: 1.4rem; font-weight: 800; margin: 0 auto 16px; box-shadow: 0 6px 20px rgba(212,63,58,0.25); }
        .step-card h4 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; color: var(--dark); }
        .step-card p { font-size: 0.9rem; color: var(--text-weak); line-height: 1.5; }
        .step-card .step-arrow { position: absolute; top: 50%; right: -18px; transform: translateY(-50%); font-size: 1.4rem; color: var(--gold); opacity: 0.4; }
        .steps-grid .step-card:last-child .step-arrow { display: none; }

        /* FAQ */
        .faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
        .faq-item { background: var(--white); border-radius: var(--radius-sm); border: 1px solid var(--border); overflow: hidden; transition: var(--transition); }
        .faq-item:hover { border-color: rgba(212,63,58,0.2); }
        .faq-question { display: flex; align-items: center; justify-content: space-between; padding: 18px 24px; cursor: pointer; font-weight: 600; font-size: 1.02rem; color: var(--dark); background: var(--white); transition: var(--transition); gap: 12px; }
        .faq-question:hover { background: rgba(212,63,58,0.03); }
        .faq-question i { color: var(--primary); transition: var(--transition); font-size: 0.9rem; }
        .faq-item.active .faq-question i { transform: rotate(180deg); }
        .faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease, padding 0.3s ease; padding: 0 24px; color: var(--text-weak); font-size: 0.95rem; line-height: 1.7; }
        .faq-item.active .faq-answer { max-height: 300px; padding: 0 24px 20px; }

        /* CTA */
        .cta-section { background: var(--dark); position: relative; overflow: hidden; padding: 80px 0; }
        .cta-section::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat; opacity: 0.12; transform: scale(1.05); }
        .cta-inner { position: relative; z-index: 2; text-align: center; }
        .cta-inner h2 { font-size: 2.2rem; font-weight: 800; color: var(--white); margin-bottom: 16px; }
        .cta-inner p { color: rgba(255,255,255,0.7); font-size: 1.1rem; max-width: 600px; margin: 0 auto 32px; }
        .cta-buttons { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
        .btn-primary { display: inline-flex; align-items: center; gap: 8px; background: var(--primary); color: var(--white); padding: 14px 36px; border-radius: 30px; font-weight: 700; font-size: 1.05rem; box-shadow: 0 8px 28px rgba(212,63,58,0.35); transition: var(--transition); border: none; cursor: pointer; }
        .btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 12px 36px rgba(212,63,58,0.45); }
        .btn-outline { display: inline-flex; align-items: center; gap: 8px; background: transparent; color: var(--white); padding: 14px 36px; border-radius: 30px; font-weight: 600; font-size: 1.05rem; border: 2px solid rgba(255,255,255,0.3); transition: var(--transition); cursor: pointer; }
        .btn-outline:hover { border-color: var(--gold); color: var(--gold); transform: translateY(-2px); }

        /* Footer */
        .footer { background: #12121f; color: rgba(255,255,255,0.7); padding: 60px 0 0; }
        .footer-top { display: grid; grid-template-columns: 1.8fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.06); }
        .footer-brand .logo-footer { font-size: 1.5rem; font-weight: 800; background: linear-gradient(135deg, var(--primary), var(--gold)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; margin-bottom: 12px; }
        .footer-brand .logo-footer span { font-weight: 400; font-size: 0.85rem; background: none; -webkit-text-fill-color: rgba(255,255,255,0.4); color: rgba(255,255,255,0.4); }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; color: rgba(255,255,255,0.5); max-width: 320px; }
        .footer-col h4 { color: var(--white); font-size: 1rem; font-weight: 700; margin-bottom: 16px; }
        .footer-col ul { list-style: none; }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a { color: rgba(255,255,255,0.55); font-size: 0.9rem; transition: var(--transition); display: flex; align-items: center; gap: 8px; }
        .footer-col ul li a:hover { color: var(--gold); transform: translateX(4px); }
        .footer-col ul li a i { width: 16px; }
        .footer-bottom { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; padding: 24px 0; font-size: 0.85rem; color: rgba(255,255,255,0.35); }
        .footer-bottom a { color: rgba(255,255,255,0.35); }
        .footer-bottom a:hover { color: var(--gold); }
        .footer-socials { display: flex; gap: 12px; }
        .footer-socials a { width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; border-radius: 50%; background: rgba(255,255,255,0.06); color: rgba(255,255,255,0.5); transition: var(--transition); font-size: 1rem; }
        .footer-socials a:hover { background: var(--primary); color: var(--white); transform: translateY(-2px); }

        /* Responsive */
        @media (max-width: 1024px) {
            .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
            .steps-grid { grid-template-columns: repeat(2, 1fr); }
            .step-card .step-arrow { display: none; }
        }
        @media (max-width: 768px) {
            .header-inner { height: 64px; }
            .menu-toggle { display: block; }
            .nav-links { position: fixed; top: 64px; left: 0; right: 0; background: var(--white); flex-direction: column; padding: 16px 24px; gap: 4px; box-shadow: 0 12px 30px rgba(0,0,0,0.1); transform: translateY(-120%); opacity: 0; transition: var(--transition); pointer-events: none; border-bottom: 2px solid var(--border); }
            .nav-links.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
            .nav-links a { width: 100%; padding: 12px 20px; border-radius: var(--radius-sm); }
            .article-hero { min-height: 320px; padding: 60px 20px 40px; }
            .article-hero h1 { font-size: 1.8rem; }
            .card-grid { grid-template-columns: 1fr; gap: 20px; }
            .section { padding: 48px 0; }
            .section-title h2 { font-size: 1.6rem; }
            .steps-grid { grid-template-columns: 1fr; gap: 16px; }
            .footer-top { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .cta-inner h2 { font-size: 1.6rem; }
            .article-footer-bar { flex-direction: column; align-items: flex-start; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .article-hero h1 { font-size: 1.4rem; }
            .article-body { font-size: 0.98rem; }
            .btn-primary, .btn-outline { width: 100%; justify-content: center; }
            .cta-buttons { flex-direction: column; }
        }

/* roulang page: category1 */
/* ===== DESIGN VARIABLES ===== */
        :root {
            --primary: #1a365d;
            --primary-light: #2b5a8c;
            --primary-dark: #0f1d34;
            --secondary: #e6a817;
            --secondary-light: #f0c24b;
            --secondary-dark: #c48a0e;
            --accent: #e53e3e;
            --accent-light: #f06262;
            --bg-light: #f8f9fa;
            --bg-white: #ffffff;
            --bg-dark: #0f1d34;
            --text-dark: #1a202c;
            --text-body: #4a5568;
            --text-light: #a0aec0;
            --text-white: #f7fafc;
            --border-light: #e2e8f0;
            --border-mid: #cbd5e0;
            --shadow-sm: 0 1px 3px rgba(26, 54, 93, 0.08);
            --shadow-md: 0 4px 16px rgba(26, 54, 93, 0.10);
            --shadow-lg: 0 12px 40px rgba(26, 54, 93, 0.14);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --container-max: 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-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-light);
        }
        a:focus-visible {
            outline: 3px solid var(--secondary);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        button:focus-visible {
            outline: 3px solid var(--secondary);
            outline-offset: 2px;
            border-radius: 6px;
        }

        ul,
        ol {
            list-style: none;
        }

        /* ===== CONTAINER ===== */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== TYPOGRAPHY ===== */
        .heading-xl {
            font-size: 3.2rem;
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.02em;
            color: var(--text-dark);
        }
        .heading-lg {
            font-size: 2.4rem;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.01em;
            color: var(--text-dark);
        }
        .heading-md {
            font-size: 1.75rem;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-dark);
        }
        .heading-sm {
            font-size: 1.25rem;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text-dark);
        }
        .body-lg {
            font-size: 1.125rem;
            line-height: 1.8;
            color: var(--text-body);
        }
        .body-md {
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-body);
        }
        .body-sm {
            font-size: 0.875rem;
            line-height: 1.6;
            color: var(--text-light);
        }
        .text-accent {
            color: var(--accent);
        }
        .text-secondary {
            color: var(--secondary);
        }
        .text-primary {
            color: var(--primary);
        }

        @media (max-width: 768px) {
            .heading-xl {
                font-size: 2.2rem;
            }
            .heading-lg {
                font-size: 1.8rem;
            }
            .heading-md {
                font-size: 1.4rem;
            }
            .body-lg {
                font-size: 1rem;
            }
        }
        @media (max-width: 520px) {
            .heading-xl {
                font-size: 1.8rem;
            }
            .heading-lg {
                font-size: 1.5rem;
            }
        }

        /* ===== SECTION SPACING ===== */
        .section-padding {
            padding: 80px 0;
        }
        .section-padding-sm {
            padding: 56px 0;
        }
        @media (max-width: 768px) {
            .section-padding {
                padding: 56px 0;
            }
            .section-padding-sm {
                padding: 40px 0;
            }
        }

        /* ===== HEADER / NAV ===== */
        .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(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.6);
            transition: background var(--transition), box-shadow var(--transition);
        }
        .header.scrolled {
            background: rgba(255, 255, 255, 0.98);
            box-shadow: var(--shadow-md);
        }

        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
        }
        .logo span {
            font-weight: 400;
            color: var(--secondary);
        }
        .logo i {
            font-size: 1.5rem;
            color: var(--secondary);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-links a {
            padding: 8px 18px;
            border-radius: 40px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-body);
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: var(--primary);
            background: rgba(26, 54, 93, 0.06);
        }
        .nav-links a.active {
            color: var(--bg-white);
            background: var(--primary);
            box-shadow: var(--shadow-sm);
        }
        .nav-links a.active:hover {
            background: var(--primary-light);
        }

        .nav-cta {
            padding: 8px 22px;
            border-radius: 40px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--bg-white) !important;
            background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
            box-shadow: 0 4px 12px rgba(230, 168, 23, 0.35);
            transition: all var(--transition);
        }
        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230, 168, 23, 0.45);
            background: linear-gradient(135deg, var(--secondary-light), var(--secondary));
        }
        .nav-cta i {
            margin-right: 6px;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 6px;
            background: none;
            border: none;
            cursor: pointer;
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--primary);
            border-radius: 4px;
            transition: all 0.3s ease;
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }
            .nav-links {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                flex-direction: column;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(12px);
                padding: 20px 24px 28px;
                gap: 6px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-lg);
                transform: translateY(-110%);
                opacity: 0;
                pointer-events: none;
                transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
                border-radius: 0 0 var(--radius-md) var(--radius-md);
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-links a {
                width: 100%;
                text-align: center;
                padding: 12px 18px;
                font-size: 1.05rem;
            }
            .nav-cta {
                margin-top: 8px;
            }
        }
        @media (max-width: 520px) {
            .logo {
                font-size: 1.1rem;
            }
            .logo i {
                font-size: 1.2rem;
            }
        }

        /* ===== HERO ===== */
        .hero {
            margin-top: var(--header-h);
            min-height: 70vh;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
            background: var(--bg-dark);
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            opacity: 0.4;
            transform: scale(1.05);
            transition: transform 8s ease;
        }
        .hero:hover .hero-bg {
            transform: scale(1.0);
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 29, 52, 0.88) 0%, rgba(26, 54, 93, 0.70) 50%, rgba(15, 29, 52, 0.60) 100%);
            z-index: 1;
        }
        .hero .container {
            position: relative;
            z-index: 2;
            width: 100%;
            padding-top: 40px;
            padding-bottom: 40px;
        }
        .hero-content {
            max-width: 720px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            border-radius: 40px;
            background: rgba(230, 168, 23, 0.18);
            color: var(--secondary-light);
            font-size: 0.85rem;
            font-weight: 500;
            border: 1px solid rgba(230, 168, 23, 0.25);
            backdrop-filter: blur(4px);
            margin-bottom: 24px;
        }
        .hero-badge i {
            font-size: 0.75rem;
        }
        .hero-title {
            font-size: 3.6rem;
            font-weight: 800;
            line-height: 1.1;
            color: var(--text-white);
            letter-spacing: -0.02em;
            margin-bottom: 20px;
        }
        .hero-title span {
            color: var(--secondary);
        }
        .hero-sub {
            font-size: 1.2rem;
            line-height: 1.7;
            color: rgba(247, 250, 252, 0.85);
            max-width: 600px;
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }
        .hero-actions .btn-primary {
            padding: 14px 36px;
            border-radius: 50px;
            font-size: 1.05rem;
            font-weight: 600;
            background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
            color: var(--bg-dark);
            box-shadow: 0 8px 28px rgba(230, 168, 23, 0.35);
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .hero-actions .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 40px rgba(230, 168, 23, 0.45);
        }
        .hero-actions .btn-ghost {
            padding: 14px 32px;
            border-radius: 50px;
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--text-white);
            border: 2px solid rgba(247, 250, 252, 0.35);
            background: transparent;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .hero-actions .btn-ghost:hover {
            border-color: var(--secondary);
            background: rgba(230, 168, 23, 0.12);
            color: var(--secondary-light);
        }
        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 44px;
            padding-top: 32px;
            border-top: 1px solid rgba(247, 250, 252, 0.12);
        }
        .hero-stats .stat-item {
            text-align: left;
        }
        .hero-stats .stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.2;
        }
        .hero-stats .stat-label {
            font-size: 0.85rem;
            color: rgba(247, 250, 252, 0.6);
            margin-top: 2px;
        }

        @media (max-width: 768px) {
            .hero {
                min-height: 60vh;
            }
            .hero-title {
                font-size: 2.4rem;
            }
            .hero-sub {
                font-size: 1rem;
            }
            .hero-stats {
                gap: 24px;
                flex-wrap: wrap;
            }
            .hero-stats .stat-num {
                font-size: 1.6rem;
            }
        }
        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.9rem;
            }
            .hero-actions {
                flex-direction: column;
            }
            .hero-actions .btn-primary,
            .hero-actions .btn-ghost {
                width: 100%;
                justify-content: center;
            }
            .hero-stats {
                gap: 16px;
            }
            .hero-stats .stat-item {
                flex: 1;
                min-width: 80px;
            }
        }

        /* ===== BUTTONS ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
            color: var(--bg-dark);
            box-shadow: 0 4px 16px rgba(230, 168, 23, 0.30);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(230, 168, 23, 0.40);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: var(--bg-white);
        }
        .btn-light {
            background: var(--bg-white);
            color: var(--primary);
            box-shadow: var(--shadow-sm);
        }
        .btn-light:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 0.85rem;
        }
        .btn-lg {
            padding: 16px 40px;
            font-size: 1.1rem;
        }

        /* ===== SECTION TITLE ===== */
        .section-head {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-head .subtitle {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--secondary);
            text-transform: uppercase;
            letter-spacing: 0.08em;
            margin-bottom: 10px;
        }
        .section-head h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 14px;
            line-height: 1.2;
        }
        .section-head p {
            font-size: 1.05rem;
            color: var(--text-body);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .section-head {
                margin-bottom: 36px;
            }
            .section-head h2 {
                font-size: 1.7rem;
            }
            .section-head p {
                font-size: 0.95rem;
            }
        }

        /* ===== CARDS ===== */
        .card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            overflow: hidden;
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .card-body {
            padding: 28px 24px;
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            border-radius: var(--radius-sm) var(--radius-sm) 0 0;
        }
        .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-sm);
            background: rgba(230, 168, 23, 0.10);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--secondary);
            margin-bottom: 16px;
        }
        .card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
        }
        .card p {
            font-size: 0.95rem;
            color: var(--text-body);
            line-height: 1.7;
        }
        .card-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 40px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(230, 168, 23, 0.12);
            color: var(--secondary-dark);
            margin-bottom: 12px;
        }

        /* ===== STEPS / TIMELINE ===== */
        .step-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 24px;
            counter-reset: step;
        }
        .step-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 32px 24px 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            position: relative;
            counter-increment: step;
        }
        .step-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .step-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: rgba(230, 168, 23, 0.15);
            line-height: 1;
            margin-bottom: 4px;
            font-feature-settings: "tnum";
        }
        .step-item h4 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 0.9rem;
            color: var(--text-body);
            line-height: 1.6;
        }
        .step-item .step-icon {
            font-size: 1.6rem;
            color: var(--secondary);
            margin-bottom: 12px;
        }

        /* ===== FEATURES GRID ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .feature-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .feature-card .f-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, rgba(230, 168, 23, 0.12), rgba(230, 168, 23, 0.04));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--secondary);
            margin-bottom: 18px;
        }
        .feature-card h4 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
        }
        .feature-card p {
            font-size: 0.92rem;
            color: var(--text-body);
            line-height: 1.7;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-q {
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1.02rem;
            color: var(--text-dark);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition);
        }
        .faq-q:hover {
            background: rgba(230, 168, 23, 0.04);
        }
        .faq-q .faq-toggle {
            font-size: 1.2rem;
            color: var(--secondary);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item.open .faq-toggle {
            transform: rotate(45deg);
        }
        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
        }
        .faq-item.open .faq-a {
            max-height: 400px;
            padding: 0 24px 20px;
        }
        .faq-a p {
            font-size: 0.95rem;
            color: var(--text-body);
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            opacity: 0.12;
            transform: scale(1.05);
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 80px 24px;
        }
        .cta-section h2 {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(247, 250, 252, 0.75);
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }
        .cta-section .btn-cta {
            padding: 16px 44px;
            border-radius: 50px;
            font-size: 1.1rem;
            font-weight: 700;
            background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
            color: var(--bg-dark);
            box-shadow: 0 8px 32px rgba(230, 168, 23, 0.35);
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 12px;
        }
        .cta-section .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 16px 48px rgba(230, 168, 23, 0.45);
        }
        .cta-section .btn-cta i {
            font-size: 1.2rem;
        }
        .cta-meta {
            margin-top: 20px;
            font-size: 0.85rem;
            color: rgba(247, 250, 252, 0.4);
        }

        @media (max-width: 768px) {
            .cta-section .container {
                padding: 56px 20px;
            }
            .cta-section h2 {
                font-size: 1.8rem;
            }
            .cta-section p {
                font-size: 0.95rem;
            }
        }

        /* ===== FOOTER ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(247, 250, 252, 0.8);
            padding: 56px 0 0;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px 32px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-brand .logo-footer {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 14px;
        }
        .footer-brand .logo-footer span {
            color: var(--secondary);
            font-weight: 400;
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(247, 250, 252, 0.55);
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 18px;
            letter-spacing: 0.02em;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 0.9rem;
            color: rgba(247, 250, 252, 0.6);
            transition: color var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .footer-col ul li a:hover {
            color: var(--secondary);
        }
        .footer-col ul li a i {
            font-size: 0.85rem;
            width: 18px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            padding: 24px 0;
            font-size: 0.85rem;
            color: rgba(247, 250, 252, 0.4);
        }
        .footer-socials {
            display: flex;
            gap: 12px;
        }
        .footer-socials a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            color: rgba(247, 250, 252, 0.5);
            font-size: 1rem;
            transition: all var(--transition);
        }
        .footer-socials a:hover {
            background: var(--secondary);
            color: var(--bg-dark);
            transform: translateY(-2px);
        }

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

        /* ===== RESPONSIVE UTILITY ===== */
        @media (max-width: 640px) {
            .step-grid {
                grid-template-columns: 1fr;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== SCROLL ANIM (light) ===== */
        .fade-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== BADGE ===== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            border-radius: 40px;
            font-size: 0.78rem;
            font-weight: 600;
            background: rgba(230, 168, 23, 0.12);
            color: var(--secondary-dark);
        }
        .badge-primary {
            background: rgba(26, 54, 93, 0.10);
            color: var(--primary);
        }

        /* ===== DIVIDER ===== */
        .divider {
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, var(--secondary), var(--secondary-light));
            border-radius: 4px;
            margin: 16px 0 24px;
        }
        .divider.center {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== SECTION ALT BG ===== */
        .section-alt {
            background: var(--bg-white);
        }
        .section-alt-2 {
            background: #f1f4f9;
        }

        /* ===== COVER IMAGE WRAPPER ===== */
        .cover-wrap {
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .cover-wrap img {
            width: 100%;
            height: auto;
            transition: transform 0.6s ease;
        }
        .cover-wrap:hover img {
            transform: scale(1.03);
        }

        /* ===== TIP BOX ===== */
        .tip-box {
            background: rgba(230, 168, 23, 0.06);
            border-left: 4px solid var(--secondary);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            padding: 20px 24px;
            margin: 16px 0;
        }
        .tip-box p {
            font-size: 0.92rem;
            color: var(--text-body);
            line-height: 1.7;
        }
        .tip-box strong {
            color: var(--primary);
        }