/* roulang page: index */
:root {
            --primary: #1a4736;
            --primary-dark: #0f2b22;
            --secondary: #d4932b;
            --bg-warm: #f7f4ee;
            --text-dark: #1e1e1e;
            --text-muted: #888888;
            --text-light: #cccccc;
            --border-light: #e5e2dc;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-pill: 20px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
            --shadow-md: 0 6px 20px rgba(0,0,0,0.10);
            --transition: 0.2s ease;
            --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
        }
        * { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-sans);
            color: var(--text-dark);
            background: #ffffff;
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        a { color: inherit; text-decoration: none; transition: color var(--transition); }
        img { max-width: 100%; height: auto; display: block; }
        button { cursor: pointer; font-family: inherit; }
        input, textarea { font-family: inherit; }

        .container { max-width: 1280px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }
        .container-narrow { max-width: 900px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }

        /* header */
        .site-header {
            position: fixed; top: 0; left: 0; width: 100%; z-index: 50;
            background: rgba(255,255,255,0.96); backdrop-filter: blur(8px);
            border-bottom: 1px solid rgba(0,0,0,0.04);
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled { box-shadow: 0 2px 20px rgba(0,0,0,0.06); }
        .header-inner {
            display: flex; align-items: center; justify-content: center;
            height: 68px; position: relative;
        }
        .nav-left, .nav-right {
            display: flex; align-items: center; gap: 32px;
        }
        .nav-left { position: absolute; left: 24px; }
        .nav-right { position: absolute; right: 24px; }
        .logo-area {
            font-size: 22px; font-weight: 700; color: var(--primary);
            letter-spacing: 0.5px; white-space: nowrap;
        }
        .nav-link {
            font-size: 15px; font-weight: 500; color: var(--text-muted);
            white-space: nowrap; position: relative; padding-bottom: 4px;
            transition: color var(--transition);
        }
        .nav-link:hover { color: var(--primary); }
        .nav-link.active { color: var(--primary); }
        .nav-link.active::after {
            content: ''; position: absolute; bottom: -2px; left: 0; right: 0;
            height: 2px; background: var(--primary); border-radius: 1px;
        }
        .hamburger { display: none; background: none; border: none; font-size: 24px; color: var(--primary); padding: 8px; }
        .mobile-menu {
            display: none; position: fixed; top: 68px; left: 0; right: 0;
            background: rgba(255,255,255,0.98); backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border-light); padding: 16px 24px;
            z-index: 49; flex-direction: column; gap: 12px;
        }
        .mobile-menu.open { display: flex; }
        .mobile-menu .nav-link { font-size: 16px; padding: 8px 0; }

        /* hero */
        .hero-section {
            min-height: 70vh; display: flex; align-items: center; position: relative;
            background: linear-gradient(135deg, #0f2b22 0%, #1a4736 40%, #0f2b22 100%);
            overflow: hidden;
        }
        .hero-bg {
            position: absolute; inset: 0; z-index: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover; background-position: center; opacity: 0.25;
        }
        .hero-overlay {
            position: absolute; inset: 0; z-index: 1;
            background: linear-gradient(135deg, rgba(15,43,34,0.88) 0%, rgba(26,71,54,0.70) 50%, rgba(15,43,34,0.88) 100%);
        }
        .hero-content { position: relative; z-index: 2; width: 100%; padding: 120px 0 80px; }
        .hero-title { font-size: 48px; font-weight: 700; line-height: 1.2; color: #fff; margin-bottom: 20px; max-width: 800px; }
        .hero-sub { font-size: 18px; color: rgba(255,255,255,0.80); max-width: 640px; margin-bottom: 36px; line-height: 1.7; }
        .hero-actions { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }
        .btn-primary {
            display: inline-flex; align-items: center; gap: 8px;
            padding: 14px 36px; border-radius: var(--radius-btn);
            font-size: 16px; font-weight: 600; border: none;
            background: #fff; color: var(--primary);
            transition: all var(--transition);
        }
        .btn-primary:hover { background: var(--secondary); color: #fff; transform: translateY(-1px); box-shadow: 0 4px 14px rgba(212,147,43,0.35); }
        .btn-outline-light {
            display: inline-flex; align-items: center; gap: 8px;
            padding: 12px 30px; border-radius: var(--radius-btn);
            font-size: 16px; font-weight: 500; border: 2px solid rgba(255,255,255,0.30);
            color: #fff; background: transparent;
            transition: all var(--transition);
        }
        .btn-outline-light:hover { border-color: #fff; background: rgba(255,255,255,0.10); }

        /* section spacing */
        .section { padding: 80px 0; }
        .section-alt { background: var(--bg-warm); }
        .section-dark { background: var(--primary-dark); color: #fff; }
        .section-title { font-size: 36px; font-weight: 600; margin-bottom: 16px; color: var(--text-dark); }
        .section-title.light { color: #fff; }
        .section-sub { font-size: 16px; color: var(--text-muted); max-width: 600px; margin-bottom: 48px; }
        .section-sub.light { color: rgba(255,255,255,0.70); }

        /* pain cards */
        .pain-card {
            background: #f7f4ee; border-radius: 16px; padding: 32px 28px;
            box-shadow: var(--shadow-sm); transition: all var(--transition);
            display: flex; flex-direction: column; gap: 12px;
        }
        .pain-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
        .pain-icon {
            width: 48px; height: 48px; border-radius: 50%;
            background: rgba(26,71,54,0.12); display: flex; align-items: center; justify-content: center;
            font-size: 22px; color: var(--primary); flex-shrink: 0;
        }
        .pain-card h3 { font-size: 18px; font-weight: 600; color: var(--text-dark); }
        .pain-card p { font-size: 14px; color: var(--text-muted); line-height: 1.6; }

        /* solution cards */
        .solution-card {
            background: #fff; border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm); overflow: hidden;
            transition: all var(--transition); display: flex; flex-direction: column;
        }
        .solution-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
        .solution-img {
            aspect-ratio: 16/9; background-size: cover; background-position: center;
            flex-shrink: 0;
        }
        .solution-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
        .solution-body h3 { font-size: 18px; font-weight: 600; margin-bottom: 8px; }
        .solution-body p { font-size: 14px; color: var(--text-muted); line-height: 1.6; flex: 1; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .solution-link { color: var(--secondary); font-size: 14px; font-weight: 500; margin-top: 16px; display: inline-flex; align-items: center; gap: 6px; transition: all var(--transition); }
        .solution-link:hover { gap: 10px; text-decoration: underline; }

        /* stat cards */
        .stat-card {
            text-align: center; padding: 32px 16px 28px; background: #fff;
            border-radius: var(--radius-card); box-shadow: var(--shadow-sm);
            border-top: 4px solid var(--secondary); transition: all var(--transition);
        }
        .stat-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
        .stat-number { font-size: 40px; font-weight: 700; color: var(--primary); line-height: 1.1; margin-bottom: 8px; }
        .stat-label { font-size: 14px; color: var(--text-muted); }

        /* cta banner */
        .cta-banner {
            background: var(--primary); border-radius: 16px; padding: 56px 48px;
            display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 24px;
        }
        .cta-banner h2 { font-size: 28px; font-weight: 600; color: #fff; }
        .cta-banner p { color: rgba(255,255,255,0.80); font-size: 16px; }
        .btn-cta {
            padding: 14px 40px; border-radius: var(--radius-btn); font-size: 16px; font-weight: 600;
            background: var(--secondary); color: #fff; border: none;
            transition: all var(--transition); white-space: nowrap;
        }
        .btn-cta:hover { background: #b87d22; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(212,147,43,0.30); }

        /* modal */
        .modal-overlay {
            position: fixed; inset: 0; z-index: 100;
            background: rgba(0,0,0,0.55); display: none;
            align-items: center; justify-content: center; padding: 24px;
            backdrop-filter: blur(4px);
        }
        .modal-overlay.open { display: flex; }
        .modal-box {
            background: #fff; border-radius: 16px; max-width: 520px; width: 100%;
            padding: 40px 36px; position: relative; box-shadow: 0 20px 60px rgba(0,0,0,0.20);
            max-height: 90vh; overflow-y: auto;
        }
        .modal-close {
            position: absolute; top: 16px; right: 20px; background: none; border: none;
            font-size: 24px; color: var(--text-muted); transition: color var(--transition);
        }
        .modal-close:hover { color: var(--text-dark); }
        .modal-box h3 { font-size: 24px; font-weight: 600; color: var(--primary); margin-bottom: 8px; }
        .modal-box .modal-desc { font-size: 14px; color: var(--text-muted); margin-bottom: 24px; }
        .form-group { margin-bottom: 18px; }
        .form-group label { display: block; font-size: 14px; font-weight: 500; color: var(--text-dark); margin-bottom: 6px; }
        .form-group input, .form-group textarea {
            width: 100%; padding: 12px 16px; border: 1px solid #ddd; border-radius: 8px;
            font-size: 15px; transition: border-color var(--transition); background: #fafafa;
        }
        .form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--primary); background: #fff; box-shadow: 0 0 0 3px rgba(26,71,54,0.08); }
        .form-group textarea { resize: vertical; min-height: 80px; }
        .btn-submit {
            width: 100%; padding: 14px; border-radius: var(--radius-btn); font-size: 16px; font-weight: 600;
            background: var(--primary); color: #fff; border: none;
            transition: all var(--transition); margin-top: 8px;
        }
        .btn-submit:hover { background: var(--primary-dark); }
        .privacy-note { font-size: 12px; color: var(--text-muted); text-align: center; margin-top: 16px; }
        .privacy-note a { color: var(--primary); text-decoration: underline; }

        /* news card */
        .news-card {
            background: #fff; border-radius: var(--radius-card); overflow: hidden;
            box-shadow: var(--shadow-sm); transition: all var(--transition);
            display: flex; flex-direction: column;
        }
        .news-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
        .news-tag {
            display: inline-block; padding: 4px 14px; border-radius: var(--radius-pill);
            background: var(--secondary); color: #fff; font-size: 12px; font-weight: 500;
            margin-bottom: 10px; align-self: flex-start;
        }
        .news-body { padding: 20px 24px 24px; flex: 1; display: flex; flex-direction: column; }
        .news-body h3 { font-size: 16px; font-weight: 600; margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .news-body p { font-size: 14px; color: var(--text-muted); flex: 1; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 12px; }
        .news-date { font-size: 13px; color: var(--text-muted); }
        .news-link { color: var(--secondary); font-size: 14px; font-weight: 500; margin-top: 8px; display: inline-flex; align-items: center; gap: 4px; transition: gap var(--transition); }
        .news-link:hover { gap: 8px; text-decoration: underline; }

        /* faq */
        .faq-item {
            border-bottom: 1px solid var(--border-light); padding: 20px 0;
            cursor: pointer;
        }
        .faq-item:first-child { border-top: 1px solid var(--border-light); }
        .faq-q {
            display: flex; justify-content: space-between; align-items: center;
            font-size: 16px; font-weight: 500; color: var(--text-dark);
            gap: 16px;
        }
        .faq-q .faq-toggle { font-size: 18px; color: var(--primary); transition: transform 0.3s; flex-shrink: 0; }
        .faq-item.open .faq-toggle { transform: rotate(45deg); }
        .faq-a {
            max-height: 0; overflow: hidden; transition: max-height 0.35s ease, padding 0.3s ease;
            font-size: 14px; color: var(--text-muted); line-height: 1.7;
        }
        .faq-item.open .faq-a { max-height: 400px; padding-top: 14px; }

        /* footer */
        .site-footer {
            background: var(--primary-dark); color: rgba(255,255,255,0.80);
            padding: 48px 0 32px;
        }
        .footer-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 32px; margin-bottom: 28px; }
        .footer-links a { font-size: 14px; color: rgba(255,255,255,0.70); transition: color var(--transition); }
        .footer-links a:hover { color: var(--secondary); }
        .footer-copy { text-align: center; font-size: 13px; color: rgba(255,255,255,0.50); }
        .footer-copy .sep { margin: 0 8px; color: rgba(255,255,255,0.20); }

        /* privacy small */
        .privacy-bar { font-size: 12px; color: var(--text-muted); text-align: center; padding: 16px 0 0; }

        /* empty state */
        .empty-state { text-align: center; padding: 40px 20px; color: var(--text-muted); font-size: 15px; }

        /* responsive */
        @media (max-width: 1024px) {
            .nav-left, .nav-right { gap: 20px; }
            .nav-link { font-size: 14px; }
        }
        @media (max-width: 768px) {
            .nav-left, .nav-right { display: none; }
            .hamburger { display: block; position: absolute; right: 24px; top: 50%; transform: translateY(-50%); }
            .header-inner { justify-content: center; }
            .logo-area { font-size: 20px; }
            .hero-title { font-size: 32px; }
            .hero-sub { font-size: 16px; }
            .section { padding: 56px 0; }
            .section-title { font-size: 28px; }
            .cta-banner { padding: 36px 28px; flex-direction: column; text-align: center; }
            .cta-banner h2 { font-size: 22px; }
            .modal-box { padding: 28px 20px; margin: 12px; }
            .stat-number { font-size: 32px; }
            .footer-links { gap: 20px; }
        }
        @media (max-width: 520px) {
            .hero-title { font-size: 26px; }
            .hero-sub { font-size: 14px; }
            .section-title { font-size: 24px; }
            .pain-card { padding: 24px 20px; }
            .solution-body { padding: 16px; }
            .stat-card { padding: 24px 12px 20px; }
            .stat-number { font-size: 28px; }
            .btn-primary, .btn-cta { padding: 12px 24px; font-size: 14px; }
            .modal-box { padding: 24px 16px; }
        }

/* roulang page: article */
:root {
            --primary: #1a4736;
            --primary-dark: #0f2b22;
            --primary-light: #2a6b53;
            --accent: #d4932b;
            --accent-light: #e8a83e;
            --bg-warm: #f7f4ee;
            --text-dark: #1e1e1e;
            --text-gray: #888;
            --text-light: #ccc;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
            --transition: 0.2s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: var(--bg-warm);
            color: var(--text-dark);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }
        input, textarea {
            font-family: inherit;
            font-size: 1rem;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* Header & Nav */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 50;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.04);
            box-shadow: 0 1px 6px rgba(0, 0, 0, 0.03);
            height: 64px;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: center;
            height: 64px;
            position: relative;
        }
        .logo-area {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 1px;
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            white-space: nowrap;
        }
        .logo-area:hover {
            color: var(--primary-dark);
        }
        .nav-left, .nav-right {
            display: flex;
            align-items: center;
            gap: 32px;
            flex: 1;
        }
        .nav-left {
            justify-content: flex-start;
            padding-right: 80px;
        }
        .nav-right {
            justify-content: flex-end;
            padding-left: 80px;
        }
        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: #666;
            padding: 6px 0;
            position: relative;
            transition: color var(--transition);
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            transform: scaleX(0);
            transition: transform var(--transition);
        }
        .nav-link:hover::after {
            transform: scaleX(1);
        }
        .nav-link.active {
            color: var(--primary);
        }
        .nav-link.active::after {
            transform: scaleX(1);
        }
        .hamburger {
            display: none;
            font-size: 22px;
            color: var(--primary);
            padding: 8px;
            z-index: 51;
            position: absolute;
            right: 16px;
            top: 50%;
            transform: translateY(-50%);
        }
        .mobile-menu {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.99);
            backdrop-filter: blur(12px);
            padding: 20px 24px 28px;
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.10);
            z-index: 49;
            flex-direction: column;
            gap: 16px;
            border-bottom: 2px solid var(--primary);
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu .nav-link {
            font-size: 17px;
            padding: 10px 0;
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
        }
        .mobile-menu .nav-link::after {
            display: none;
        }
        /* Hero Banner */
        .article-banner {
            background: linear-gradient(135deg, rgba(15, 43, 34, 0.92), rgba(26, 71, 54, 0.80)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            min-height: 320px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 100px 24px 60px;
            margin-top: 64px;
        }
        .article-banner h1 {
            font-size: 40px;
            font-weight: 700;
            color: #fff;
            max-width: 800px;
            line-height: 1.3;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.20);
        }
        .article-meta {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            margin-top: 16px;
            color: rgba(255, 255, 255, 0.85);
            font-size: 14px;
            flex-wrap: wrap;
        }
        .article-meta .cat-tag {
            background: var(--accent);
            color: #fff;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
        }
        .article-meta .date {
            color: rgba(255, 255, 255, 0.75);
        }
        /* Breadcrumb */
        .breadcrumb-wrap {
            background: #fff;
            border-bottom: 1px solid #eee;
            padding: 14px 0;
        }
        .breadcrumb {
            font-size: 14px;
            color: #999;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--primary);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb .sep {
            color: #ccc;
        }
        .breadcrumb .current {
            color: #666;
        }
        /* Article Content */
        .article-main {
            padding: 48px 0 64px;
        }
        .article-body {
            max-width: 800px;
            margin: 0 auto;
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 48px 56px;
        }
        .article-body p {
            margin-bottom: 1.8rem;
            font-size: 16px;
            line-height: 1.8;
            color: #333;
        }
        .article-body h2 {
            font-size: 24px;
            font-weight: 600;
            color: var(--primary);
            margin: 2rem 0 1rem;
            padding-bottom: 8px;
            border-bottom: 2px solid var(--bg-warm);
        }
        .article-body h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--primary-dark);
            margin: 1.6rem 0 0.8rem;
        }
        .article-body img {
            border-radius: var(--radius-md);
            margin: 1.5rem auto;
            box-shadow: var(--shadow-sm);
        }
        .article-body ul, .article-body ol {
            margin: 0 0 1.8rem 1.6rem;
            color: #333;
        }
        .article-body li {
            margin-bottom: 0.5rem;
        }
        .article-body blockquote {
            border-left: 4px solid var(--accent);
            padding: 12px 20px;
            margin: 1.5rem 0;
            background: var(--bg-warm);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: #555;
            font-style: italic;
        }
        .article-body a {
            color: var(--accent);
            text-decoration: underline;
        }
        .article-body a:hover {
            color: var(--primary);
        }
        .article-body .cms-content-empty {
            text-align: center;
            padding: 60px 20px;
            color: #999;
            font-size: 16px;
        }
        .article-body .cms-content-empty a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 500;
        }
        .article-body .cms-content-empty a:hover {
            color: var(--accent);
        }
        /* Related Reading */
        .related-section {
            max-width: 800px;
            margin: 40px auto 0;
            padding-top: 40px;
            border-top: 1px solid #eee;
        }
        .related-section h3 {
            font-size: 22px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 24px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .related-card {
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .related-card .card-img {
            aspect-ratio: 16 / 9;
            background: var(--bg-warm);
            overflow: hidden;
        }
        .related-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .related-card .card-body {
            padding: 16px 18px 18px;
        }
        .related-card .card-tag {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            padding: 2px 10px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
            margin-bottom: 8px;
        }
        .related-card .card-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-dark);
            line-height: 1.4;
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-title:hover {
            color: var(--primary);
        }
        .related-card .card-summary {
            font-size: 13px;
            color: #888;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 8px;
        }
        .related-card .card-date {
            font-size: 12px;
            color: #aaa;
        }
        .back-link-wrap {
            text-align: center;
            margin-top: 32px;
        }
        .back-link {
            display: inline-block;
            color: var(--primary);
            font-size: 15px;
            font-weight: 500;
            padding: 10px 28px;
            border: 2px solid var(--primary);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }
        .back-link:hover {
            background: var(--primary);
            color: #fff;
        }
        /* Footer */
        .site-footer {
            background: #0f2b22;
            color: rgba(255, 255, 255, 0.85);
            padding: 48px 0 36px;
            margin-top: 48px;
        }
        .footer-links {
            display: flex;
            justify-content: center;
            gap: 36px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }
        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            transition: color var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-copy {
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-copy .sep {
            margin: 0 12px;
            color: rgba(255, 255, 255, 0.2);
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .nav-left, .nav-right {
                gap: 20px;
            }
            .nav-left {
                padding-right: 60px;
            }
            .nav-right {
                padding-left: 60px;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .nav-left, .nav-right {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .logo-area {
                position: static;
                transform: none;
                font-size: 20px;
            }
            .header-inner {
                justify-content: flex-start;
                padding-left: 16px;
            }
            .article-banner {
                min-height: 240px;
                padding: 80px 20px 40px;
            }
            .article-banner h1 {
                font-size: 28px;
            }
            .article-meta {
                font-size: 13px;
                gap: 12px;
            }
            .article-body {
                padding: 28px 20px;
                border-radius: var(--radius-sm);
            }
            .article-body p {
                font-size: 15px;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .footer-links {
                gap: 20px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .article-banner h1 {
                font-size: 24px;
            }
            .article-body {
                padding: 20px 16px;
            }
            .article-body h2 {
                font-size: 20px;
            }
            .article-body h3 {
                font-size: 18px;
            }
            .footer-links {
                flex-direction: column;
                align-items: center;
                gap: 12px;
            }
        }
        @media (min-width: 769px) {
            .mobile-menu {
                display: none !important;
            }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a4736;
            --primary-dark: #0f2b22;
            --accent: #d4932b;
            --accent-light: #e8a83f;
            --bg-warm: #f7f4ee;
            --bg-dark: #0f2b22;
            --text-primary: #1e1e1e;
            --text-secondary: #555;
            --text-light: #888;
            --text-white: #ffffff;
            --border-light: #e5e0d8;
            --shadow-sm: 0 1px 4px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --radius-pill: 20px;
            --transition: 0.25s ease;
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        }

        /* ===== 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-sans);
            font-size: 16px;
            line-height: 1.6;
            color: var(--text-primary);
            background: var(--bg-warm);
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }
        ul,
        ol {
            list-style: none;
        }

        /* ===== Container ===== */
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 导航 Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 50;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            transition: background var(--transition);
            height: 72px;
            display: flex;
            align-items: center;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 0;
            position: relative;
            transition: color var(--transition);
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-link.active {
            color: var(--primary);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .logo-area {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
            flex-shrink: 0;
            padding: 0 20px;
        }
        .hamburger {
            display: none;
            background: none;
            font-size: 24px;
            color: var(--primary);
            cursor: pointer;
            padding: 8px;
        }

        /* ===== 移动端菜单 ===== */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(12px);
            padding: 20px 24px 28px;
            box-shadow: var(--shadow-md);
            z-index: 49;
            border-bottom: 1px solid var(--border-light);
        }
        .mobile-menu.open {
            display: block;
        }
        .mobile-menu .nav-link {
            display: block;
            padding: 12px 0;
            font-size: 16px;
            border-bottom: 1px solid var(--border-light);
        }
        .mobile-menu .nav-link:last-child {
            border-bottom: none;
        }

        /* ===== Hero / Banner ===== */
        .page-banner {
            min-height: 42vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            position: relative;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            padding: 120px 24px 80px;
            margin-top: 72px;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 43, 34, 0.88) 0%, rgba(15, 43, 34, 0.55) 100%);
            z-index: 1;
        }
        .page-banner .banner-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
        }
        .page-banner h1 {
            font-size: 48px;
            font-weight: 700;
            color: var(--text-white);
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }
        .page-banner p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 640px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }
        .banner-badge {
            display: inline-block;
            background: var(--accent);
            color: var(--text-white);
            padding: 6px 20px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 500;
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }

        /* ===== 通用区块 ===== */
        .section-padding {
            padding: 80px 0;
        }
        .section-title {
            font-size: 36px;
            font-weight: 600;
            color: var(--text-primary);
            text-align: center;
            margin-bottom: 16px;
            letter-spacing: -0.3px;
        }
        .section-sub {
            font-size: 16px;
            color: var(--text-light);
            text-align: center;
            max-width: 640px;
            margin: 0 auto 48px;
            line-height: 1.7;
        }

        /* ===== 卡片通用 ===== */
        .card {
            background: #ffffff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition);
            overflow: hidden;
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        /* ===== 按钮 ===== */
        .btn-primary {
            display: inline-block;
            background: var(--primary);
            color: var(--text-white);
            padding: 14px 36px;
            border-radius: var(--radius-sm);
            font-size: 16px;
            font-weight: 600;
            text-align: center;
            transition: background var(--transition), transform var(--transition);
            cursor: pointer;
            border: none;
            line-height: 1.4;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-outline {
            display: inline-block;
            background: transparent;
            color: var(--primary);
            padding: 12px 32px;
            border-radius: var(--radius-sm);
            font-size: 16px;
            font-weight: 600;
            border: 2px solid var(--primary);
            transition: background var(--transition), color var(--transition);
            cursor: pointer;
            line-height: 1.4;
        }
        .btn-outline:hover {
            background: var(--primary);
            color: var(--text-white);
        }
        .btn-accent {
            display: inline-block;
            background: var(--accent);
            color: var(--text-white);
            padding: 14px 36px;
            border-radius: var(--radius-sm);
            font-size: 16px;
            font-weight: 600;
            transition: background var(--transition), transform var(--transition);
            cursor: pointer;
            border: none;
            line-height: 1.4;
        }
        .btn-accent:hover {
            background: var(--accent-light);
            transform: translateY(-1px);
        }

        /* ===== 特色卖点网格 ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }
        .feature-card {
            background: #ffffff;
            border-radius: var(--radius-md);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition);
            text-align: center;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            background: rgba(26, 71, 54, 0.10);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 28px;
            color: var(--primary);
        }
        .feature-card h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 10px;
        }
        .feature-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
        }

        /* ===== 适用场景 ===== */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .scene-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            background: #ffffff;
            border-radius: var(--radius-sm);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition);
        }
        .scene-item:hover {
            box-shadow: var(--shadow-md);
        }
        .scene-item .num {
            width: 36px;
            height: 36px;
            background: var(--accent);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            flex-shrink: 0;
        }
        .scene-item h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .scene-item p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* ===== 流程步骤 ===== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .process-step {
            text-align: center;
            padding: 28px 16px;
            background: #ffffff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            position: relative;
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .process-step:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .process-step .step-icon {
            width: 48px;
            height: 48px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            font-size: 20px;
            font-weight: 700;
        }
        .process-step h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .process-step p {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.6;
        }
        .process-arrow {
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 24px;
            font-weight: 300;
        }

        /* ===== CTA 横幅 ===== */
        .cta-banner {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -30%;
            width: 400px;
            height: 400px;
            background: rgba(212, 147, 43, 0.08);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-banner h2 {
            font-size: 32px;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 12px;
        }
        .cta-banner p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.80);
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 840px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: #ffffff;
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: color var(--transition);
            user-select: none;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .icon {
            font-size: 18px;
            color: var(--accent);
            transition: transform var(--transition);
            flex-shrink: 0;
            margin-left: 12px;
        }
        .faq-answer {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .faq-item.open .faq-question .icon {
            transform: rotate(180deg);
        }

        /* ===== 数据卡片 ===== */
        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .data-card {
            background: #ffffff;
            border-radius: var(--radius-md);
            padding: 32px 16px 28px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border-top: 4px solid var(--accent);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .data-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .data-number {
            font-size: 40px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .data-label {
            font-size: 14px;
            color: var(--text-light);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.85);
            padding: 40px 0 32px;
        }
        .footer-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 32px;
            margin-bottom: 24px;
        }
        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            transition: color var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-copy {
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.50);
        }
        .footer-copy .sep {
            margin: 0 12px;
            color: rgba(255, 255, 255, 0.20);
        }

        /* ===== 弹层 ===== */
        .modal-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 100;
            align-items: center;
            justify-content: center;
            padding: 24px;
        }
        .modal-overlay.open {
            display: flex;
        }
        .modal-box {
            background: #ffffff;
            border-radius: var(--radius-lg);
            max-width: 520px;
            width: 100%;
            padding: 40px 36px 32px;
            position: relative;
            box-shadow: var(--shadow-lg);
            max-height: 90vh;
            overflow-y: auto;
        }
        .modal-close {
            position: absolute;
            top: 16px;
            right: 20px;
            background: none;
            font-size: 24px;
            color: var(--text-light);
            cursor: pointer;
            transition: color var(--transition);
            line-height: 1;
        }
        .modal-close:hover {
            color: var(--text-primary);
        }
        .modal-box h3 {
            font-size: 22px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .modal-box .modal-desc {
            font-size: 14px;
            color: var(--text-light);
            margin-bottom: 24px;
        }
        .form-group {
            margin-bottom: 18px;
        }
        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid #ddd;
            border-radius: var(--radius-sm);
            font-size: 15px;
            transition: border-color var(--transition);
            background: #fafafa;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(26, 71, 54, 0.06);
        }
        .form-group textarea {
            min-height: 80px;
            resize: vertical;
        }
        .privacy-note {
            font-size: 12px;
            color: var(--text-light);
            margin-top: 16px;
            text-align: center;
        }
        .privacy-note a {
            color: var(--primary);
            text-decoration: underline;
        }
        .privacy-note a:hover {
            color: var(--accent);
        }

        /* ===== 标签徽章 ===== */
        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 500;
            background: rgba(212, 147, 43, 0.12);
            color: var(--accent);
        }
        .badge-primary {
            background: rgba(26, 71, 54, 0.10);
            color: var(--primary);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .nav-left,
            .nav-right {
                gap: 20px;
            }
            .feature-grid {
                gap: 20px;
            }
            .process-grid {
                gap: 16px;
            }
        }

        @media (max-width: 768px) {
            .nav-left,
            .nav-right {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .logo-area {
                font-size: 20px;
                padding: 0 8px;
            }
            .page-banner {
                min-height: 36vh;
                padding: 100px 20px 60px;
            }
            .page-banner h1 {
                font-size: 32px;
            }
            .page-banner p {
                font-size: 16px;
            }
            .section-padding {
                padding: 56px 0;
            }
            .section-title {
                font-size: 28px;
            }
            .section-sub {
                font-size: 15px;
                margin-bottom: 32px;
            }
            .feature-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .scene-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .process-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .process-arrow {
                display: none;
            }
            .data-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .data-number {
                font-size: 32px;
            }
            .cta-banner {
                padding: 36px 24px;
            }
            .cta-banner h2 {
                font-size: 24px;
            }
            .modal-box {
                padding: 28px 20px 24px;
                margin: 12px;
            }
            .footer-links {
                gap: 20px;
            }
            .footer-links a {
                font-size: 13px;
            }
            .header-inner {
                padding: 0 4px;
            }
        }

        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 26px;
            }
            .page-banner p {
                font-size: 14px;
            }
            .btn-primary,
            .btn-accent {
                padding: 12px 24px;
                font-size: 14px;
            }
            .section-title {
                font-size: 24px;
            }
            .process-grid {
                grid-template-columns: 1fr;
            }
            .data-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .data-card {
                padding: 20px 12px 18px;
            }
            .data-number {
                font-size: 28px;
            }
            .cta-banner {
                padding: 28px 16px;
                border-radius: var(--radius-md);
            }
            .cta-banner h2 {
                font-size: 20px;
            }
            .faq-question {
                padding: 16px 18px;
                font-size: 15px;
            }
            .faq-answer {
                padding: 0 18px 16px;
                font-size: 13px;
            }
            .modal-box {
                padding: 24px 16px 20px;
            }
            .modal-box h3 {
                font-size: 18px;
            }
        }

        /* ===== 辅助 ===== */
        .text-accent {
            color: var(--accent);
        }
        .bg-primary {
            background: var(--primary);
        }
        .bg-warm {
            background: var(--bg-warm);
        }
        .gap-section {
            height: 2px;
            background: linear-gradient(to right, transparent, var(--border-light), transparent);
            margin: 0 auto;
            max-width: 480px;
        }
        .shadow-soft {
            box-shadow: var(--shadow-sm);
        }
        .truncate-2 {
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

/* roulang page: category2 */
:root {
            --primary: #1a4736;
            --primary-dark: #0f2b22;
            --accent: #d4932b;
            --bg-warm: #f7f4ee;
            --text-dark: #1e1e1e;
            --text-muted: #888888;
            --border-light: #e5e0d8;
            --font-base: 16px;
            --line-height: 1.6;
            --radius-card: 12px;
            --radius-panel: 16px;
            --radius-btn: 8px;
            --radius-pill: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.10);
            --transition: 0.2s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Inter', 'Noto Sans SC', system-ui, sans-serif;
            font-size: var(--font-base);
            line-height: var(--line-height);
            color: var(--text-dark);
            background: #ffffff;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 50;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.04);
            box-shadow: 0 1px 6px rgba(0, 0, 0, 0.03);
            height: 72px;
            display: flex;
            align-items: center;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 16px;
        }
        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .nav-left {
            justify-content: flex-start;
            flex: 1;
        }
        .nav-right {
            justify-content: flex-end;
            flex: 1;
        }
        .logo-area {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
            flex-shrink: 0;
            padding: 0 12px;
        }
        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: #666;
            padding: 6px 0;
            position: relative;
            transition: color var(--transition);
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-link.active {
            color: var(--primary);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--text-dark);
            cursor: pointer;
            padding: 4px 8px;
            transition: color var(--transition);
        }
        .hamburger:hover {
            color: var(--primary);
        }
        .mobile-menu {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(12px);
            padding: 20px 24px 32px;
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
            z-index: 49;
            flex-direction: column;
            gap: 18px;
            border-bottom: 1px solid rgba(0, 0, 0, 0.04);
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu .nav-link {
            font-size: 16px;
            padding: 8px 0;
            border-bottom: 1px solid #f0ede8;
        }
        .mobile-menu .nav-link:last-child {
            border-bottom: none;
        }
        .hero-section {
            min-height: 70vh;
            display: flex;
            align-items: center;
            position: relative;
            background: linear-gradient(135deg, #0f2b22 0%, rgba(15, 43, 34, 0.75) 60%, rgba(15, 43, 34, 0.4) 100%),
                url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            padding: 120px 0 80px;
            margin-top: 72px;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(15, 43, 34, 0.6) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 780px;
        }
        .hero-title {
            font-size: 48px;
            font-weight: 700;
            line-height: 1.2;
            color: #ffffff;
            margin-bottom: 20px;
        }
        .hero-sub {
            font-size: 18px;
            font-weight: 400;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            margin-bottom: 36px;
            max-width: 640px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #ffffff;
            color: var(--primary);
            font-weight: 600;
            font-size: 16px;
            padding: 14px 36px;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
        }
        .btn-primary:hover {
            background: #f0ede8;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(0, 0, 0, 0.12);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #ffffff;
            font-weight: 500;
            font-size: 16px;
            padding: 14px 36px;
            border-radius: var(--radius-btn);
            border: 2px solid rgba(255, 255, 255, 0.6);
            cursor: pointer;
            transition: all var(--transition);
        }
        .btn-outline-light:hover {
            border-color: #ffffff;
            background: rgba(255, 255, 255, 0.08);
        }
        .section-block {
            padding: 80px 0;
        }
        .section-title {
            font-size: 36px;
            font-weight: 600;
            line-height: 1.3;
            color: var(--text-dark);
            margin-bottom: 16px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 640px;
            line-height: 1.7;
        }
        .section-label {
            display: inline-block;
            background: rgba(212, 147, 43, 0.12);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .card-base {
            background: #ffffff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            overflow: hidden;
        }
        .card-base:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .card-accent-top {
            border-top: 4px solid var(--accent);
        }
        .stat-card {
            text-align: center;
            padding: 32px 20px 28px;
            border-radius: var(--radius-card);
            background: #ffffff;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border-top: 4px solid var(--accent);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .stat-number {
            font-size: 40px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: 15px;
            color: var(--text-muted);
            font-weight: 400;
        }
        .feature-icon-wrap {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(26, 71, 54, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--primary);
            flex-shrink: 0;
        }
        .pill-tag {
            display: inline-block;
            background: var(--accent);
            color: #ffffff;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 14px;
            border-radius: var(--radius-pill);
            letter-spacing: 0.2px;
        }
        .faq-item {
            border-bottom: 1px solid #e5e0d8;
            padding: 20px 0;
        }
        .faq-question {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            user-select: none;
        }
        .faq-question i {
            color: var(--accent);
            font-size: 18px;
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-question.open i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            color: #555;
            font-size: 15px;
            line-height: 1.7;
        }
        .faq-answer.open {
            max-height: 400px;
            padding-top: 14px;
        }
        .cta-banner {
            background: var(--primary);
            border-radius: var(--radius-panel);
            padding: 56px 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 32px;
        }
        .cta-text {
            color: #ffffff;
        }
        .cta-text h3 {
            font-size: 28px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .cta-text p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 480px;
        }
        .btn-cta-gold {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #ffffff;
            font-weight: 600;
            font-size: 16px;
            padding: 14px 40px;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            box-shadow: 0 4px 14px rgba(212, 147, 43, 0.3);
        }
        .btn-cta-gold:hover {
            background: #c28422;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(212, 147, 43, 0.35);
        }
        .btn-cta-gold:active {
            transform: translateY(0);
        }
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.85);
            padding: 48px 0 32px;
        }
        .footer-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 28px;
            margin-bottom: 24px;
            font-size: 14px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.75);
            transition: color var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-copy {
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            letter-spacing: 0.3px;
        }
        .footer-copy .sep {
            margin: 0 12px;
            color: rgba(255, 255, 255, 0.2);
        }
        .privacy-note {
            text-align: center;
            font-size: 12px;
            color: #888;
            padding: 16px 0 4px;
        }
        .modal-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            backdrop-filter: blur(4px);
            z-index: 100;
            align-items: center;
            justify-content: center;
            padding: 24px;
        }
        .modal-overlay.open {
            display: flex;
        }
        .modal-content {
            background: #ffffff;
            border-radius: var(--radius-panel);
            max-width: 520px;
            width: 100%;
            padding: 40px 36px 32px;
            position: relative;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
            max-height: 90vh;
            overflow-y: auto;
        }
        .modal-close {
            position: absolute;
            top: 16px;
            right: 20px;
            background: none;
            border: none;
            font-size: 26px;
            color: #aaa;
            cursor: pointer;
            transition: color var(--transition);
            line-height: 1;
        }
        .modal-close:hover {
            color: var(--text-dark);
        }
        .modal-title {
            font-size: 22px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 24px;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 500;
            color: #444;
            margin-bottom: 6px;
        }
        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid #ddd;
            border-radius: 8px;
            font-size: 15px;
            transition: border-color var(--transition);
            background: #fafafa;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--primary);
            background: #ffffff;
            box-shadow: 0 0 0 3px rgba(26, 71, 54, 0.08);
        }
        .form-group textarea {
            resize: vertical;
            min-height: 80px;
        }
        .submit-btn {
            width: 100%;
            background: var(--primary);
            color: #ffffff;
            font-weight: 600;
            font-size: 16px;
            padding: 14px;
            border: none;
            border-radius: var(--radius-btn);
            cursor: pointer;
            transition: background var(--transition);
        }
        .submit-btn:hover {
            background: var(--primary-dark);
        }
        .privacy-link {
            font-size: 13px;
            color: var(--text-muted);
            text-align: center;
            margin-top: 14px;
        }
        .privacy-link a {
            color: var(--primary);
            text-decoration: underline;
        }
        .flow-step {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid #f0ede8;
        }
        .flow-step:last-child {
            border-bottom: none;
        }
        .flow-number {
            font-size: 28px;
            font-weight: 700;
            color: var(--accent);
            min-width: 44px;
            line-height: 1.2;
        }
        .flow-content h4 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 4px;
        }
        .flow-content p {
            font-size: 15px;
            color: #666;
        }
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .scenario-card {
            background: #ffffff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            padding: 32px 24px 28px;
            text-align: center;
            transition: all var(--transition);
            border: 1px solid #f0ede8;
        }
        .scenario-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .scenario-icon {
            font-size: 40px;
            margin-bottom: 16px;
            color: var(--primary);
        }
        .scenario-card h4 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .scenario-card p {
            font-size: 14px;
            color: #666;
            line-height: 1.6;
        }
        .tag-group {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 12px;
            justify-content: center;
        }
        .tag-group .tag {
            background: rgba(26, 71, 54, 0.06);
            color: var(--primary);
            font-size: 12px;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            font-weight: 500;
        }
        .advantage-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .advantage-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 20px 24px;
            background: #ffffff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            border-left: 4px solid var(--accent);
            transition: all var(--transition);
        }
        .advantage-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
        }
        .advantage-item .icon {
            font-size: 24px;
            color: var(--primary);
            flex-shrink: 0;
            margin-top: 2px;
        }
        .advantage-item .text h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 4px;
        }
        .advantage-item .text p {
            font-size: 14px;
            color: #666;
        }
        .cover-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 40px;
            }
            .section-title {
                font-size: 30px;
            }
            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .scenario-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .advantage-list {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-left,
            .nav-right {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .header-inner {
                justify-content: space-between;
            }
            .logo-area {
                font-size: 20px;
                order: 1;
            }
            .hamburger {
                order: 2;
            }
            .hero-section {
                min-height: 60vh;
                padding: 100px 0 60px;
            }
            .hero-title {
                font-size: 32px;
            }
            .hero-sub {
                font-size: 16px;
            }
            .section-block {
                padding: 56px 0;
            }
            .section-title {
                font-size: 26px;
            }
            .grid-3,
            .grid-2,
            .grid-4,
            .scenario-grid {
                grid-template-columns: 1fr;
            }
            .stat-number {
                font-size: 32px;
            }
            .cta-banner {
                padding: 36px 24px;
                flex-direction: column;
                text-align: center;
            }
            .cta-text h3 {
                font-size: 22px;
            }
            .modal-content {
                padding: 28px 20px;
                margin: 16px;
                max-width: 100%;
            }
            .flow-step {
                flex-direction: column;
                gap: 8px;
                padding: 16px 0;
            }
            .flow-number {
                font-size: 22px;
            }
            .advantage-item {
                padding: 16px 18px;
            }
            .footer-links {
                gap: 16px;
                font-size: 13px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: flex-start;
            }
            .hero-actions .btn-primary,
            .hero-actions .btn-outline-light {
                width: 100%;
                justify-content: center;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .hero-title {
                font-size: 28px;
            }
            .section-title {
                font-size: 22px;
            }
            .stat-number {
                font-size: 28px;
            }
            .btn-primary,
            .btn-outline-light,
            .btn-cta-gold {
                padding: 12px 24px;
                font-size: 15px;
            }
            .modal-title {
                font-size: 18px;
            }
            .privacy-note {
                font-size: 11px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #1a4736;
            --primary-dark: #0f2b22;
            --accent: #d4932b;
            --bg-warm: #f7f4ee;
            --text-dark: #1e1e1e;
            --text-soft: #555;
            --text-light: #888;
            --border-light: #e5e0d8;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
            --shadow-md: 0 6px 20px rgba(0,0,0,0.10);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
            --radius-card: 12px;
            --radius-block: 16px;
            --radius-btn: 8px;
            --radius-pill: 20px;
            --transition: 0.2s ease;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body { font-family: 'Inter', system-ui, -apple-system, sans-serif; color: var(--text-dark); background: #fff; line-height: 1.6; }
        .container { max-width: 1280px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }
        /* header */
        .site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 50; background: rgba(255,255,255,0.96); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border-light); }
        .header-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
        .logo-area { font-size: 22px; font-weight: 700; color: var(--primary); text-decoration: none; letter-spacing: -0.3px; }
        .logo-area:hover { opacity: 0.85; }
        .nav-left, .nav-right { display: flex; align-items: center; gap: 8px; }
        .nav-link { font-size: 15px; font-weight: 500; color: var(--text-soft); text-decoration: none; padding: 6px 14px; border-radius: 6px; transition: var(--transition); }
        .nav-link:hover { color: var(--primary); background: rgba(26,71,54,0.06); }
        .nav-link.active { color: var(--primary); background: rgba(26,71,54,0.08); position: relative; }
        .nav-link.active::after { content: ''; position: absolute; bottom: -2px; left: 14px; right: 14px; height: 2px; background: var(--primary); border-radius: 1px; }
        .hamburger { display: none; background: none; border: none; font-size: 22px; color: var(--primary); cursor: pointer; padding: 8px; }
        /* hero */
        .hero-section { min-height: 70vh; background: linear-gradient(135deg, #0f2b22 0%, #1a4736 50%, #0f2b22 100%); position: relative; display: flex; align-items: center; overflow: hidden; }
        .hero-section::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-1.png') center/cover no-repeat; opacity: 0.3; mix-blend-mode: overlay; }
        .hero-overlay { position: absolute; inset: 0; background: linear-gradient(to bottom, rgba(15,43,34,0.7) 0%, rgba(26,71,54,0.5) 100%); }
        .hero-content { position: relative; z-index: 2; width: 100%; }
        .hero-title { font-size: 48px; font-weight: 700; line-height: 1.2; color: #fff; margin-bottom: 20px; }
        .hero-sub { font-size: 18px; color: rgba(255,255,255,0.85); max-width: 640px; line-height: 1.7; margin-bottom: 32px; }
        .hero-btn { display: inline-block; background: #fff; color: var(--primary); font-size: 16px; font-weight: 600; padding: 14px 36px; border-radius: var(--radius-btn); text-decoration: none; transition: var(--transition); box-shadow: 0 4px 14px rgba(0,0,0,0.15); }
        .hero-btn:hover { background: #f0ede6; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.20); }
        /* sections */
        section { padding: 80px 0; }
        .section-title { font-size: 36px; font-weight: 600; color: var(--primary); margin-bottom: 16px; }
        .section-subtitle { font-size: 16px; color: var(--text-soft); max-width: 640px; margin-bottom: 48px; }
        .bg-warm { background: var(--bg-warm); }
        .bg-dark { background: var(--primary-dark); color: #fff; }
        /* cards */
        .card { background: #fff; border-radius: var(--radius-card); box-shadow: var(--shadow-sm); transition: var(--transition); overflow: hidden; }
        .card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
        .card-img { width: 100%; aspect-ratio: 16/9; object-fit: cover; display: block; }
        .card-body { padding: 24px; }
        .card-title { font-size: 18px; font-weight: 600; color: var(--text-dark); margin-bottom: 8px; }
        .card-text { font-size: 14px; color: var(--text-soft); line-height: 1.7; }
        .card-tag { display: inline-block; background: var(--accent); color: #fff; font-size: 12px; font-weight: 500; padding: 4px 14px; border-radius: var(--radius-pill); margin-bottom: 12px; }
        /* stat cards */
        .stat-card { background: #fff; border-radius: var(--radius-card); box-shadow: var(--shadow-sm); padding: 32px 20px; text-align: center; border-top: 4px solid var(--accent); transition: var(--transition); }
        .stat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
        .stat-number { font-size: 40px; font-weight: 700; color: var(--primary); line-height: 1.2; margin-bottom: 6px; }
        .stat-label { font-size: 14px; color: var(--text-soft); }
        /* feature icon cards */
        .feature-card { display: flex; gap: 16px; background: var(--bg-warm); border-radius: var(--radius-block); padding: 24px; transition: var(--transition); }
        .feature-card:hover { background: #ede8de; }
        .feature-icon { width: 48px; height: 48px; min-width: 48px; background: rgba(26,71,54,0.10); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 22px; color: var(--primary); }
        .feature-title { font-size: 16px; font-weight: 600; margin-bottom: 4px; }
        .feature-desc { font-size: 14px; color: var(--text-soft); line-height: 1.7; }
        /* step cards */
        .step-card { text-align: center; padding: 32px 20px; background: #fff; border-radius: var(--radius-card); box-shadow: var(--shadow-sm); transition: var(--transition); }
        .step-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
        .step-num { width: 48px; height: 48px; margin: 0 auto 16px; background: var(--primary); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 20px; font-weight: 700; }
        .step-title { font-size: 18px; font-weight: 600; margin-bottom: 8px; }
        .step-desc { font-size: 14px; color: var(--text-soft); line-height: 1.7; }
        /* faq */
        .faq-item { border-bottom: 1px solid var(--border-light); padding: 20px 0; }
        .faq-question { font-size: 17px; font-weight: 600; color: var(--text-dark); cursor: pointer; display: flex; justify-content: space-between; align-items: center; }
        .faq-question:hover { color: var(--primary); }
        .faq-answer { font-size: 15px; color: var(--text-soft); line-height: 1.8; padding-top: 12px; display: none; }
        .faq-item.open .faq-answer { display: block; }
        .faq-toggle { font-size: 18px; transition: var(--transition); }
        .faq-item.open .faq-toggle { transform: rotate(180deg); }
        /* cta banner */
        .cta-banner { background: var(--primary); border-radius: var(--radius-block); padding: 56px 40px; text-align: center; color: #fff; }
        .cta-banner h3 { font-size: 28px; font-weight: 600; margin-bottom: 12px; }
        .cta-banner p { font-size: 16px; opacity: 0.9; margin-bottom: 28px; max-width: 520px; margin-left: auto; margin-right: auto; }
        .cta-btn { display: inline-block; background: var(--accent); color: #fff; font-size: 16px; font-weight: 600; padding: 14px 36px; border-radius: var(--radius-btn); text-decoration: none; transition: var(--transition); box-shadow: 0 4px 16px rgba(212,147,43,0.35); }
        .cta-btn:hover { background: #c18426; transform: translateY(-2px); box-shadow: 0 8px 28px rgba(212,147,43,0.45); }
        /* modal */
        .modal-overlay { position: fixed; inset: 0; z-index: 100; background: rgba(0,0,0,0.55); display: none; align-items: center; justify-content: center; padding: 24px; }
        .modal-overlay.open { display: flex; }
        .modal-box { background: #fff; border-radius: var(--radius-block); max-width: 520px; width: 100%; padding: 40px 36px; position: relative; box-shadow: var(--shadow-lg); }
        .modal-close { position: absolute; top: 16px; right: 20px; font-size: 24px; color: var(--text-light); background: none; border: none; cursor: pointer; transition: var(--transition); }
        .modal-close:hover { color: var(--text-dark); }
        .modal-title { font-size: 24px; font-weight: 600; color: var(--primary); margin-bottom: 24px; }
        .form-group { margin-bottom: 20px; }
        .form-group label { display: block; font-size: 14px; font-weight: 500; color: var(--text-dark); margin-bottom: 6px; }
        .form-group input, .form-group textarea { width: 100%; padding: 12px 16px; border: 1px solid #ddd; border-radius: 6px; font-size: 15px; transition: var(--transition); outline: none; }
        .form-group input:focus, .form-group textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(26,71,54,0.12); }
        .form-group textarea { min-height: 80px; resize: vertical; }
        .submit-btn { width: 100%; background: var(--primary); color: #fff; font-size: 16px; font-weight: 600; padding: 14px; border: none; border-radius: var(--radius-btn); cursor: pointer; transition: var(--transition); }
        .submit-btn:hover { background: var(--primary-dark); }
        .privacy-note { font-size: 12px; color: var(--text-light); text-align: center; margin-top: 16px; }
        .privacy-note a { color: var(--accent); text-decoration: underline; }
        /* footer */
        .site-footer { background: var(--primary-dark); color: rgba(255,255,255,0.85); padding: 48px 0 32px; }
        .footer-links { display: flex; justify-content: center; flex-wrap: wrap; gap: 8px 28px; margin-bottom: 24px; }
        .footer-links a { color: rgba(255,255,255,0.75); text-decoration: none; font-size: 14px; transition: var(--transition); }
        .footer-links a:hover { color: var(--accent); }
        .footer-copy { text-align: center; font-size: 13px; color: rgba(255,255,255,0.55); }
        .footer-copy .sep { margin: 0 12px; color: rgba(255,255,255,0.25); }
        /* privacy bar */
        .privacy-bar { text-align: center; font-size: 12px; color: var(--text-light); padding: 16px 0 0; }
        /* responsive */
        @media (max-width: 1024px) {
            .hero-title { font-size: 38px; }
            .section-title { font-size: 30px; }
        }
        @media (max-width: 768px) {
            .nav-left, .nav-right { display: none; }
            .hamburger { display: block; }
            .header-inner { justify-content: space-between; }
            .nav-left.show, .nav-right.show { display: flex; flex-direction: column; position: absolute; top: 68px; left: 0; right: 0; background: rgba(255,255,255,0.98); backdrop-filter: blur(8px); padding: 12px 24px 20px; box-shadow: 0 8px 24px rgba(0,0,0,0.08); gap: 4px; }
            .nav-left.show { border-bottom: 1px solid var(--border-light); }
            .nav-right.show { top: auto; border-bottom: 1px solid var(--border-light); }
            .nav-link { font-size: 16px; padding: 10px 14px; }
            .hero-title { font-size: 32px; }
            .hero-sub { font-size: 16px; }
            .hero-section { min-height: 60vh; }
            section { padding: 56px 0; }
            .section-title { font-size: 26px; }
            .stat-number { font-size: 32px; }
            .cta-banner { padding: 40px 24px; }
            .cta-banner h3 { font-size: 22px; }
            .modal-box { padding: 28px 20px; margin: 16px; }
            .feature-card { flex-direction: column; align-items: flex-start; }
        }
        @media (max-width: 520px) {
            .hero-title { font-size: 26px; }
            .hero-sub { font-size: 14px; }
            .section-title { font-size: 22px; }
            .stat-number { font-size: 28px; }
            .footer-links { gap: 6px 16px; font-size: 13px; }
        }
        /* grid helpers */
        .grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
        .grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 24px; }
        .grid-4 { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 24px; }
        @media (max-width: 1024px) { .grid-4 { grid-template-columns: 1fr 1fr; } }
        @media (max-width: 768px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }
        /* tag */
        .tag-pill { display: inline-block; background: var(--accent); color: #fff; font-size: 12px; font-weight: 500; padding: 3px 14px; border-radius: var(--radius-pill); }
        /* misc */
        .text-accent { color: var(--accent); }
        .gap-6 { gap: 24px; }
        .mb-2 { margin-bottom: 8px; }
        .mb-4 { margin-bottom: 16px; }
        .mb-6 { margin-bottom: 24px; }
        .mb-8 { margin-bottom: 32px; }
        .mb-10 { margin-bottom: 40px; }
        .mt-8 { margin-top: 32px; }
        .mt-10 { margin-top: 40px; }
        .shadow-card { box-shadow: var(--shadow-sm); }
        .shadow-card-hover:hover { box-shadow: var(--shadow-md); }
        .rounded-card { border-radius: var(--radius-card); }
        .transition { transition: var(--transition); }