/* roulang page: index */
:root {
            --jade: #059669;
            --jade-light: #d1fae5;
            --amber: #EA580C;
            --amber-dark: #D4500A;
            --dark-bg: #0F172A;
            --light-bg: #F8FAFC;
            --warm-gold: #D4A84B;
            --text-dark: #0F172A;
            --text-gray: #64748b;
            --text-light: #f1f5f9;
            --border-radius: 12px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
            --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 32px rgba(0,0,0,0.12);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        * { margin:0; padding:0; box-sizing:border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            background: var(--light-bg);
            color: var(--text-dark);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a { text-decoration: none; color: inherit; transition: var(--transition); }
        img { max-width: 100%; height: auto; display: block; }
        button { cursor: pointer; font-family: inherit; border: none; background: none; transition: var(--transition); }
        input, select, textarea { font-family: inherit; font-size: 1rem; outline: none; transition: var(--transition); }
        .container { max-width: 1280px; margin: 0 auto; padding: 0 1.5rem; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.2; font-weight: 700; }
        /* navigation */
        .site-header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 100;
            background: rgba(255,255,255,0.92); backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0,0,0,0.04); box-shadow: var(--shadow-sm);
        }
        .nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 72px; }
        .logo-wrap { display: flex; align-items: center; gap: 10px; }
        .logo-icon { width: 36px; height: 36px; background: linear-gradient(135deg, var(--jade), #047857); border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 20px; color: white; font-weight: 900; flex-shrink: 0; }
        .logo-text { font-size: 1.35rem; font-weight: 800; color: var(--text-dark); letter-spacing: -0.3px; }
        .logo-text span { color: var(--jade); }
        .nav-links { display: flex; align-items: center; gap: 2rem; list-style: none; }
        .nav-links a {
            font-size: 0.95rem; font-weight: 500; color: #334155; padding: 4px 0;
            position: relative; letter-spacing: 0.2px;
        }
        .nav-links a::after {
            content: ''; position: absolute; bottom: -2px; left: 0; width: 0; height: 2px;
            background: var(--jade); border-radius: 2px; transition: var(--transition);
        }
        .nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
        .nav-links a:hover { color: var(--jade); }
        .nav-links a.active { color: var(--jade); font-weight: 600; }
        .nav-cta {
            background: var(--amber); color: white !important; padding: 10px 28px !important;
            border-radius: 8px; font-weight: 700; font-size: 0.95rem !important;
            box-shadow: 0 4px 12px rgba(234,88,12,0.3); letter-spacing: 0.3px;
        }
        .nav-cta:hover { background: var(--amber-dark) !important; transform: scale(1.03); box-shadow: 0 6px 20px rgba(234,88,12,0.35); }
        .nav-cta::after { display: none !important; }
        .hamburger { display: none; flex-direction: column; gap: 5px; padding: 4px; border-radius: 6px; }
        .hamburger span { width: 26px; height: 2.5px; background: var(--text-dark); border-radius: 4px; transition: var(--transition); }
        .mobile-menu {
            display: none; position: fixed; top: 72px; left: 0; right: 0; bottom: 0;
            background: #0F172A; padding: 2rem 1.5rem; z-index: 99;
            flex-direction: column; gap: 1.2rem; overflow-y: auto;
        }
        .mobile-menu a {
            color: rgba(255,255,255,0.85); font-size: 1.15rem; font-weight: 500;
            padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,0.06);
        }
        .mobile-menu a:last-child { border-bottom: none; }
        .mobile-menu .nav-cta-mobile {
            background: var(--amber); color: white !important; text-align: center;
            padding: 14px !important; border-radius: 8px; font-weight: 700; margin-top: 1rem;
            border-bottom: none !important;
        }
        @media (max-width: 768px) {
            .nav-links, .nav-cta { display: none; }
            .hamburger { display: flex; }
            .mobile-menu.open { display: flex; }
        }
        /* hero */
        .hero-section {
            background: var(--dark-bg); min-height: 88vh;
            display: flex; align-items: center; position: relative; overflow: hidden;
            padding: 8rem 0 5rem;
        }
        .hero-section::before {
            content: ''; position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.15; mix-blend-mode: overlay;
        }
        .hero-section::after {
            content: ''; position: absolute; bottom: -2px; left: 0; right: 0; height: 120px;
            background: linear-gradient(to top, #F8FAFC 0%, transparent 100%);
            pointer-events: none;
        }
        .hero-content { position: relative; z-index: 2; width: 100%; }
        .hero-badge {
            display: inline-block; background: rgba(5,150,105,0.18); color: #34d399;
            padding: 6px 18px; border-radius: 40px; font-size: 0.85rem; font-weight: 600;
            letter-spacing: 0.5px; margin-bottom: 1.5rem; border: 1px solid rgba(5,150,105,0.25);
        }
        .hero-title {
            font-size: clamp(1.8rem, 5vw, 3rem); font-weight: 900; color: white;
            line-height: 1.15; max-width: 720px; margin-bottom: 1.5rem;
        }
        .hero-title .highlight { color: var(--warm-gold); }
        .hero-sub {
            font-size: 1.2rem; color: #94a3b8; max-width: 600px; margin-bottom: 2.5rem;
            line-height: 1.6;
        }
        .hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; }
        .btn-primary {
            display: inline-flex; align-items: center; gap: 8px;
            background: var(--amber); color: white; padding: 14px 36px; border-radius: 8px;
            font-weight: 700; font-size: 1.05rem; box-shadow: 0 4px 16px rgba(234,88,12,0.35);
        }
        .btn-primary:hover { background: var(--amber-dark); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(234,88,12,0.4); }
        .btn-primary:active { transform: scale(0.97); }
        .btn-secondary {
            display: inline-flex; align-items: center; gap: 8px;
            border: 2px solid var(--jade); color: #34d399; padding: 12px 32px; border-radius: 8px;
            font-weight: 600; font-size: 1.05rem; background: transparent;
        }
        .btn-secondary:hover { background: var(--jade); color: white; transform: translateY(-2px); }
        .hero-features { display: flex; flex-wrap: wrap; gap: 2rem; margin-top: 3rem; }
        .hero-feat { display: flex; align-items: center; gap: 8px; color: #94a3b8; font-size: 0.95rem; }
        .hero-feat .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--jade); flex-shrink: 0; }
        @media (max-width: 640px) {
            .hero-section { min-height: 70vh; padding: 6rem 0 3rem; }
            .hero-title { font-size: clamp(1.5rem, 7vw, 2.2rem); }
            .hero-sub { font-size: 1rem; }
            .hero-actions { flex-direction: column; width: 100%; }
            .btn-primary, .btn-secondary { width: 100%; justify-content: center; }
            .hero-features { gap: 1rem; }
        }
        /* section common */
        .section { padding: 5rem 0; }
        .section-title { font-size: 2rem; font-weight: 800; margin-bottom: 0.75rem; color: var(--text-dark); }
        .section-title .accent { color: var(--jade); }
        .section-sub { font-size: 1.1rem; color: var(--text-gray); max-width: 640px; margin-bottom: 3rem; }
        .section-divider { width: 48px; height: 3px; background: var(--jade); border-radius: 4px; margin-bottom: 1.5rem; }
        @media (max-width: 640px) {
            .section { padding: 3rem 0; }
            .section-title { font-size: 1.6rem; }
        }
        /* pain cards */
        .pain-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
        .pain-card {
            background: white; border-radius: 12px; padding: 2rem 1.8rem;
            box-shadow: var(--shadow-sm); border-left: 4px solid var(--jade);
            transition: var(--transition);
        }
        .pain-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
        .pain-icon { font-size: 2.2rem; margin-bottom: 1rem; display: block; }
        .pain-card h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 0.5rem; }
        .pain-card p { color: var(--text-gray); font-size: 0.95rem; line-height: 1.6; margin-bottom: 1.2rem; }
        .pain-link { color: var(--jade); font-weight: 600; font-size: 0.9rem; display: inline-flex; align-items: center; gap: 4px; }
        .pain-link:hover { color: #047857; gap: 8px; }
        @media (max-width: 768px) { .pain-grid { grid-template-columns: 1fr; } }
        @media (min-width: 769px) and (max-width: 1024px) { .pain-grid { grid-template-columns: repeat(2, 1fr); } }
        /* stats */
        .stats-section { background: var(--dark-bg); position: relative; }
        .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; text-align: center; }
        .stat-item { padding: 1.5rem 0; position: relative; }
        .stat-item:not(:last-child)::after {
            content: ''; position: absolute; right: -1rem; top: 20%; height: 60%; width: 1px;
            background: rgba(255,255,255,0.08);
        }
        .stat-number { font-size: clamp(2rem, 4vw, 3rem); font-weight: 900; color: var(--warm-gold); line-height: 1.1; }
        .stat-label { font-size: 1rem; color: #94a3b8; margin-top: 0.5rem; font-weight: 400; }
        @media (max-width: 768px) { .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 1.5rem; } .stat-item:not(:last-child)::after { display: none; } }
        /* news list */
        .news-list { display: flex; flex-direction: column; gap: 1.2rem; }
        .news-item {
            display: flex; align-items: center; gap: 1.2rem; background: white;
            padding: 1.2rem 1.5rem; border-radius: 10px; box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .news-item:hover { box-shadow: var(--shadow-md); transform: translateX(4px); }
        .news-thumb { width: 60px; height: 60px; border-radius: 8px; object-fit: cover; flex-shrink: 0; background: #e2e8f0; }
        .news-info { flex: 1; min-width: 0; }
        .news-info h4 { font-size: 1rem; font-weight: 600; margin-bottom: 0.25rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
        .news-info h4 a { color: var(--text-dark); }
        .news-info h4 a:hover { color: var(--jade); }
        .news-summary { font-size: 0.85rem; color: var(--text-gray); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
        .news-meta { display: flex; align-items: center; gap: 0.8rem; margin-top: 0.3rem; flex-shrink: 0; }
        .news-tag { background: rgba(5,150,105,0.1); color: var(--jade); padding: 2px 12px; border-radius: 40px; font-size: 0.75rem; font-weight: 600; }
        .news-time { font-size: 0.8rem; color: #94a3b8; white-space: nowrap; }
        .news-empty { text-align: center; padding: 3rem 1rem; color: var(--text-gray); font-size: 1rem; background: white; border-radius: 12px; box-shadow: var(--shadow-sm); }
        .more-link { display: inline-flex; align-items: center; gap: 6px; color: var(--jade); font-weight: 600; font-size: 0.95rem; margin-top: 1.5rem; }
        .more-link:hover { gap: 12px; color: #047857; }
        @media (max-width: 640px) { .news-item { flex-wrap: wrap; } .news-meta { width: 100%; justify-content: flex-start; margin-top: 0.5rem; } }
        /* form / cta */
        .cta-section { background: #F1F5F9; }
        .cta-wrap { max-width: 800px; margin: 0 auto; text-align: center; }
        .cta-form { display: flex; flex-direction: column; gap: 1.2rem; max-width: 520px; margin: 2rem auto 0; }
        .cta-form .form-row { display: flex; gap: 1rem; }
        .cta-form input, .cta-form select {
            flex: 1; padding: 14px 18px; border: 1px solid #d1d5db; border-radius: 8px;
            background: white; font-size: 0.95rem;
        }
        .cta-form input:focus, .cta-form select:focus { border-color: var(--jade); box-shadow: 0 0 0 3px rgba(5,150,105,0.15); }
        .cta-form .btn-submit {
            background: var(--amber); color: white; padding: 14px 32px; border-radius: 8px;
            font-weight: 700; font-size: 1.05rem; width: 100%;
            box-shadow: 0 4px 16px rgba(234,88,12,0.3);
        }
        .cta-form .btn-submit:hover { background: var(--amber-dark); transform: translateY(-2px); }
        .privacy-note { font-size: 0.8rem; color: #94a3b8; margin-top: 1rem; }
        @media (max-width: 640px) { .cta-form .form-row { flex-direction: column; } }
        /* modal overlay */
        .modal-overlay {
            display: none; position: fixed; inset: 0; z-index: 200;
            background: rgba(0,0,0,0.55); backdrop-filter: blur(4px);
            align-items: center; justify-content: center; padding: 1.5rem;
        }
        .modal-overlay.open { display: flex; }
        .modal-box {
            background: white; border-radius: 16px; padding: 2.5rem 2rem; max-width: 480px; width: 100%;
            box-shadow: 0 20px 60px rgba(0,0,0,0.3); position: relative; animation: modalIn 0.3s ease;
        }
        @keyframes modalIn { from { opacity: 0; transform: scale(0.92) translateY(20px); } to { opacity: 1; transform: scale(1) translateY(0); } }
        .modal-close {
            position: absolute; top: 14px; right: 18px; font-size: 1.6rem; color: #94a3b8;
            background: none; border: none; padding: 4px 8px; border-radius: 6px; line-height: 1;
        }
        .modal-close:hover { background: #f1f5f9; color: var(--text-dark); }
        /* footer */
        .site-footer {
            background: var(--dark-bg); color: #94a3b8; padding: 4rem 0 2rem;
        }
        .footer-grid { display: grid; grid-template-columns: 1.8fr 1fr 1fr 1.5fr; gap: 2.5rem; }
        .footer-brand .logo-wrap { margin-bottom: 1rem; }
        .footer-brand .logo-text { color: white; }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; color: #94a3b8; max-width: 300px; }
        .footer-col h4 { color: white; font-size: 0.95rem; font-weight: 600; margin-bottom: 1.2rem; }
        .footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 0.6rem; }
        .footer-col a { font-size: 0.9rem; color: #94a3b8; }
        .footer-col a:hover { color: var(--amber); }
        .footer-bottom { border-top: 1px solid rgba(255,255,255,0.06); margin-top: 3rem; padding-top: 1.5rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.8rem; font-size: 0.85rem; color: #64748b; }
        .footer-bottom a { color: #94a3b8; }
        .footer-bottom a:hover { color: var(--amber); }
        @media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; } }
        @media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } .footer-bottom { flex-direction: column; text-align: center; } }
        /* faq accordion */
        .faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 0.8rem; }
        .faq-item { background: white; border-radius: 10px; box-shadow: var(--shadow-sm); overflow: hidden; }
        .faq-q { padding: 1.2rem 1.5rem; display: flex; justify-content: space-between; align-items: center; font-weight: 600; font-size: 1rem; cursor: pointer; transition: var(--transition); }
        .faq-q:hover { background: #f8fafc; }
        .faq-q .icon { font-size: 1.2rem; color: var(--jade); transition: var(--transition); }
        .faq-q.open .icon { transform: rotate(45deg); }
        .faq-a { max-height: 0; overflow: hidden; transition: max-height 0.35s ease, padding 0.3s ease; padding: 0 1.5rem; }
        .faq-a.open { max-height: 300px; padding: 0 1.5rem 1.2rem; }
        .faq-a p { font-size: 0.95rem; color: var(--text-gray); line-height: 1.7; }
        /* json-ld hidden */
        .json-ld { display: none; }
        /* scroll top btn */
        .scroll-top {
            position: fixed; bottom: 2rem; right: 2rem; z-index: 50;
            width: 44px; height: 44px; border-radius: 50%; background: var(--jade); color: white;
            display: flex; align-items: center; justify-content: center; font-size: 1.2rem;
            box-shadow: 0 4px 16px rgba(5,150,105,0.3); opacity: 0; visibility: hidden;
            transition: var(--transition);
        }
        .scroll-top.visible { opacity: 1; visibility: visible; }
        .scroll-top:hover { background: #047857; transform: translateY(-3px); }
        /* misc */
        .badge-pill { display: inline-block; background: rgba(5,150,105,0.1); color: var(--jade); padding: 4px 16px; border-radius: 40px; font-size: 0.8rem; font-weight: 600; }
        .text-amber { color: var(--amber); }
        .bg-amber { background: var(--amber); }
        .border-jade { border-color: var(--jade); }
        .hover-jade:hover { color: var(--jade) !important; }

/* roulang page: category1 */
:root {
            --primary: #059669;
            --primary-dark: #047857;
            --secondary: #EA580C;
            --secondary-dark: #D4500A;
            --accent-gold: #D4A84B;
            --dark-bg: #0F172A;
            --light-bg: #F8FAFC;
            --text-dark: #0F172A;
            --text-muted: #64748B;
            --border-light: #E2E8F0;
            --radius-card: 12px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
            --shadow-md: 0 4px 12px rgba(0,0,0,0.10);
            --shadow-lg: 0 12px 32px rgba(0,0,0,0.14);
            --transition: all 0.25s ease;
        }
        * { margin:0; padding:0; box-sizing:border-box; }
        body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif; font-size: 1rem; line-height: 1.7; color: var(--text-dark); background: var(--light-bg); }
        img { max-width:100%; height:auto; display:block; }
        a { text-decoration:none; color:inherit; transition: var(--transition); }
        .container { max-width:1280px; margin:0 auto; padding:0 1.25rem; }
        @media (min-width:768px) { .container { padding:0 2rem; } }
        @media (min-width:1024px) { .container { padding:0 2.5rem; } }

        /* header */
        .site-header { position:fixed; top:0; left:0; width:100%; z-index:50; background:rgba(255,255,255,0.92); backdrop-filter:blur(12px); -webkit-backdrop-filter:blur(12px); box-shadow:0 1px 4px rgba(0,0,0,0.06); border-bottom:1px solid rgba(226,232,240,0.5); }
        .nav-wrap { display:flex; align-items:center; justify-content:space-between; height:68px; }
        .logo-wrap { display:flex; align-items:center; gap:0.6rem; }
        .logo-icon { width:38px; height:38px; background:linear-gradient(135deg,#059669,#047857); border-radius:10px; display:flex; align-items:center; justify-content:center; color:#fff; font-weight:800; font-size:1.25rem; box-shadow:0 2px 8px rgba(5,150,105,0.3); }
        .logo-text { font-size:1.35rem; font-weight:800; color:var(--dark-bg); letter-spacing:-0.5px; }
        .logo-text span { color:var(--primary); }
        .nav-links { display:none; gap:0.25rem; list-style:none; }
        @media (min-width:768px) { .nav-links { display:flex; align-items:center; } }
        .nav-links li a { padding:0.5rem 0.9rem; font-size:0.95rem; font-weight:500; color:var(--text-dark); border-radius:6px; position:relative; transition:var(--transition); }
        .nav-links li a::after { content:''; position:absolute; bottom:0; left:50%; transform:translateX(-50%); width:0; height:2px; background:var(--primary); border-radius:2px; transition:var(--transition); }
        .nav-links li a:hover::after, .nav-links li a.active::after { width:60%; }
        .nav-links li a:hover { color:var(--primary); }
        .nav-links li a.active { color:var(--primary); font-weight:600; }
        .nav-cta { display:none; background:var(--secondary); color:#fff; padding:0.6rem 1.6rem; border-radius:8px; font-weight:700; font-size:0.95rem; border:none; cursor:pointer; transition:var(--transition); box-shadow:0 2px 8px rgba(234,88,12,0.25); }
        @media (min-width:768px) { .nav-cta { display:inline-block; } }
        .nav-cta:hover { background:var(--secondary-dark); transform:scale(1.03); box-shadow:0 4px 14px rgba(234,88,12,0.35); }
        .nav-cta:active { transform:scale(0.97); }
        .hamburger { display:flex; flex-direction:column; justify-content:center; gap:5px; width:32px; height:32px; background:none; border:none; cursor:pointer; padding:4px; }
        @media (min-width:768px) { .hamburger { display:none; } }
        .hamburger span { display:block; height:2.5px; background:var(--dark-bg); border-radius:4px; transition:var(--transition); }
        .mobile-menu { display:none; position:fixed; top:68px; left:0; width:100%; background:#0F172A; padding:1rem 0; box-shadow:0 8px 24px rgba(0,0,0,0.25); z-index:49; }
        .mobile-menu.open { display:block; }
        .mobile-menu a { display:block; padding:0.8rem 1.5rem; color:#e2e8f0; font-size:1rem; font-weight:500; border-bottom:1px solid rgba(255,255,255,0.06); transition:var(--transition); }
        .mobile-menu a:hover { background:rgba(5,150,105,0.15); color:#fff; }
        .mobile-menu .nav-cta-mobile { background:var(--secondary); color:#fff; font-weight:700; text-align:center; margin:0.8rem 1.5rem; border-radius:8px; padding:0.8rem; border:none; }

        /* page banner */
        .page-banner { padding:8rem 0 4rem; background:linear-gradient(135deg,#0F172A 0%,#1a2744 60%,#0F172A 100%); position:relative; overflow:hidden; }
        .page-banner::before { content:''; position:absolute; inset:0; background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat; opacity:0.15; }
        .page-banner::after { content:''; position:absolute; bottom:0; left:0; width:100%; height:80px; background:linear-gradient(to top,var(--light-bg),transparent); }
        .page-banner .container { position:relative; z-index:2; text-align:center; }
        .page-banner h1 { font-size:clamp(2rem,5vw,2.8rem); font-weight:900; color:#fff; line-height:1.2; letter-spacing:-0.5px; }
        .page-banner h1 span { color:var(--accent-gold); }
        .page-banner p { font-size:1.15rem; color:rgba(255,255,255,0.7); max-width:680px; margin:1rem auto 0; line-height:1.6; }
        .banner-badge { display:inline-flex; align-items:center; gap:0.5rem; background:rgba(5,150,105,0.18); border:1px solid rgba(5,150,105,0.25); border-radius:40px; padding:0.4rem 1.2rem; color:var(--accent-gold); font-size:0.85rem; font-weight:600; margin-bottom:1.2rem; }

        /* sections */
        .section-title { font-size:1.85rem; font-weight:700; color:var(--dark-bg); line-height:1.25; }
        .section-title .highlight { color:var(--primary); }
        .section-subtitle { font-size:1.05rem; color:var(--text-muted); max-width:600px; }
        .section-divider { width:60px; height:3px; background:var(--secondary); border-radius:4px; margin:0.6rem 0 1.2rem; }

        /* cards */
        .card-base { background:#fff; border-radius:var(--radius-card); box-shadow:var(--shadow-sm); transition:var(--transition); overflow:hidden; }
        .card-base:hover { box-shadow:var(--shadow-lg); transform:translateY(-3px); }
        .card-icon { width:52px; height:52px; border-radius:12px; display:flex; align-items:center; justify-content:center; font-size:1.5rem; }

        /* tags */
        .tag-green { display:inline-flex; align-items:center; background:rgba(5,150,105,0.10); color:var(--primary); padding:0.2rem 0.9rem; border-radius:40px; font-size:0.8rem; font-weight:600; }

        /* CTA */
        .btn-primary { display:inline-flex; align-items:center; gap:0.5rem; background:var(--secondary); color:#fff; padding:0.75rem 2rem; border-radius:8px; font-weight:700; font-size:1rem; border:none; cursor:pointer; transition:var(--transition); box-shadow:0 4px 12px rgba(234,88,12,0.25); }
        .btn-primary:hover { background:var(--secondary-dark); transform:translateY(-2px); box-shadow:0 6px 20px rgba(234,88,12,0.35); }
        .btn-primary:active { transform:scale(0.97); }
        .btn-outline { display:inline-flex; align-items:center; gap:0.5rem; background:transparent; color:var(--primary); border:2px solid var(--primary); padding:0.7rem 1.8rem; border-radius:8px; font-weight:600; font-size:0.95rem; cursor:pointer; transition:var(--transition); }
        .btn-outline:hover { background:var(--primary); color:#fff; }

        /* process */
        .step-card { text-align:center; padding:2rem 1.5rem; background:#fff; border-radius:var(--radius-card); box-shadow:var(--shadow-sm); transition:var(--transition); position:relative; }
        .step-card:hover { box-shadow:var(--shadow-md); transform:translateY(-2px); }
        .step-number { width:44px; height:44px; border-radius:50%; background:var(--primary); color:#fff; font-weight:800; font-size:1.1rem; display:flex; align-items:center; justify-content:center; margin:0 auto 1rem; box-shadow:0 4px 10px rgba(5,150,105,0.25); }

        /* FAQ */
        .faq-item { border-bottom:1px solid var(--border-light); padding:1rem 0; transition:var(--transition); }
        .faq-question { display:flex; justify-content:space-between; align-items:center; cursor:pointer; font-weight:600; font-size:1.05rem; color:var(--dark-bg); padding:0.25rem 0; }
        .faq-question i { color:var(--primary); transition:var(--transition); font-size:0.9rem; }
        .faq-answer { max-height:0; overflow:hidden; transition:max-height 0.35s ease, padding 0.3s ease; padding:0; color:var(--text-muted); line-height:1.7; }
        .faq-item.active .faq-answer { max-height:400px; padding:0.75rem 0 0.25rem; }
        .faq-item.active .faq-question i { transform:rotate(45deg); }

        /* features grid */
        .feature-card { padding:2rem 1.5rem; background:#fff; border-radius:var(--radius-card); box-shadow:var(--shadow-sm); transition:var(--transition); border-left:4px solid var(--primary); }
        .feature-card:hover { box-shadow:var(--shadow-md); transform:translateY(-2px); }

        /* stats */
        .stat-number { font-size:clamp(2rem,4vw,2.8rem); font-weight:900; color:var(--accent-gold); line-height:1.1; }

        /* CTA section */
        .cta-section { background:linear-gradient(135deg,#0F172A 0%,#1a2744 100%); position:relative; overflow:hidden; }
        .cta-section::before { content:''; position:absolute; inset:0; background:url('/assets/images/backpic/back-3.webp') center/cover no-repeat; opacity:0.08; }

        /* footer */
        .site-footer { background:#0F172A; color:rgba(255,255,255,0.65); padding:3.5rem 0 0; }
        .footer-grid { display:grid; grid-template-columns:1fr; gap:2rem; margin-bottom:2.5rem; }
        @media (min-width:640px) { .footer-grid { grid-template-columns:1fr 1fr; } }
        @media (min-width:1024px) { .footer-grid { grid-template-columns:2fr 1fr 1fr 1fr; } }
        .footer-brand .logo-wrap { margin-bottom:0.8rem; }
        .footer-brand p { font-size:0.9rem; line-height:1.7; max-width:320px; }
        .footer-col h4 { color:#fff; font-size:1rem; font-weight:700; margin-bottom:0.9rem; }
        .footer-col ul { list-style:none; }
        .footer-col ul li { margin-bottom:0.5rem; }
        .footer-col ul li a { font-size:0.9rem; color:rgba(255,255,255,0.6); transition:var(--transition); }
        .footer-col ul li a:hover { color:var(--secondary); }
        .footer-bottom { border-top:1px solid rgba(255,255,255,0.08); padding:1.2rem 0; display:flex; flex-direction:column; align-items:center; gap:0.4rem; font-size:0.85rem; text-align:center; }
        @media (min-width:640px) { .footer-bottom { flex-direction:row; justify-content:space-between; } }
        .footer-bottom a { color:rgba(255,255,255,0.55); }
        .footer-bottom a:hover { color:var(--secondary); }

        /* modal */
        .modal-overlay { display:none; position:fixed; inset:0; background:rgba(0,0,0,0.6); backdrop-filter:blur(6px); z-index:100; align-items:center; justify-content:center; padding:1rem; }
        .modal-overlay.open { display:flex; }
        .modal-box { background:#fff; border-radius:20px; padding:2.2rem 2rem; max-width:480px; width:100%; box-shadow:0 24px 48px rgba(0,0,0,0.3); position:relative; animation:modalIn 0.3s ease; }
        @keyframes modalIn { from { opacity:0; transform:scale(0.94) translateY(12px); } to { opacity:1; transform:scale(1) translateY(0); } }
        .modal-close { position:absolute; top:1rem; right:1.2rem; background:none; border:none; font-size:1.6rem; color:var(--text-muted); cursor:pointer; transition:var(--transition); line-height:1; }
        .modal-close:hover { color:var(--dark-bg); transform:rotate(90deg); }

        /* form */
        .form-input { width:100%; padding:0.75rem 1rem; border:1.5px solid var(--border-light); border-radius:8px; font-size:0.95rem; transition:var(--transition); background:#fff; }
        .form-input:focus { outline:none; border-color:var(--primary); box-shadow:0 0 0 3px rgba(5,150,105,0.12); }
        .form-select { width:100%; padding:0.75rem 1rem; border:1.5px solid var(--border-light); border-radius:8px; font-size:0.95rem; background:#fff; transition:var(--transition); appearance:none; background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2364748B' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E"); background-repeat:no-repeat; background-position:right 1rem center; }
        .form-select:focus { outline:none; border-color:var(--primary); box-shadow:0 0 0 3px rgba(5,150,105,0.12); }

        /* responsive grid helpers */
        .grid-2 { display:grid; grid-template-columns:1fr; gap:1.5rem; }
        @media (min-width:640px) { .grid-2 { grid-template-columns:1fr 1fr; } }
        .grid-3 { display:grid; grid-template-columns:1fr; gap:1.5rem; }
        @media (min-width:640px) { .grid-3 { grid-template-columns:1fr 1fr; } }
        @media (min-width:1024px) { .grid-3 { grid-template-columns:1fr 1fr 1fr; } }
        .grid-4 { display:grid; grid-template-columns:1fr 1fr; gap:1.5rem; }
        @media (min-width:640px) { .grid-4 { grid-template-columns:1fr 1fr; } }
        @media (min-width:1024px) { .grid-4 { grid-template-columns:1fr 1fr 1fr 1fr; } }

        /* utilities */
        .text-balance { text-wrap:balance; }
        .gap-2 { gap:0.5rem; } .gap-3 { gap:0.75rem; } .gap-4 { gap:1rem; } .gap-6 { gap:1.5rem; } .gap-8 { gap:2rem; }
        .mt-4 { margin-top:1rem; } .mt-6 { margin-top:1.5rem; } .mt-8 { margin-top:2rem; } .mt-12 { margin-top:3rem; }
        .mb-4 { margin-bottom:1rem; } .mb-6 { margin-bottom:1.5rem; } .mb-8 { margin-bottom:2rem; }
        .py-12 { padding-top:3rem; padding-bottom:3rem; }
        .py-16 { padding-top:4rem; padding-bottom:4rem; }
        .py-20 { padding-top:5rem; padding-bottom:5rem; }
        .text-center { text-align:center; }
        .flex-center { display:flex; align-items:center; justify-content:center; }
        .flex-wrap { flex-wrap:wrap; }
        @media (max-width:639px) { .hide-mobile { display:none !important; } }

        /* scroll */
        html { scroll-behavior:smooth; }

/* roulang page: article */
:root {
            --primary: #059669;
            --primary-dark: #047857;
            --secondary: #EA580C;
            --secondary-dark: #D4500A;
            --accent: #D4A84B;
            --bg-dark: #0F172A;
            --bg-light: #F8FAFC;
            --bg-white: #FFFFFF;
            --text-dark: #0F172A;
            --text-gray: #64748B;
            --text-light: #F1F5F9;
            --border-light: #E2E8F0;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
            --shadow-md: 0 4px 12px rgba(0,0,0,0.10);
            --shadow-lg: 0 10px 30px rgba(0,0,0,0.14);
            --radius: 12px;
            --radius-sm: 8px;
            --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
        }
        * { margin:0; padding:0; box-sizing:border-box; }
        html { scroll-behavior:smooth; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
            background: var(--bg-light);
            color: var(--text-dark);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        img { max-width:100%; height:auto; display:block; border-radius:var(--radius-sm); }
        a { color:inherit; text-decoration:none; transition:var(--transition); }
        ul, ol { list-style:none; }
        .container { max-width:1280px; margin:0 auto; padding:0 1.5rem; }
        .container-narrow { max-width:800px; margin:0 auto; padding:0 1.5rem; }

        /* header & nav */
        .site-header {
            position:fixed; top:0; left:0; right:0; z-index:1000;
            background:rgba(255,255,255,0.92); backdrop-filter:blur(12px);
            border-bottom:1px solid rgba(0,0,0,0.04);
            box-shadow:var(--shadow-sm);
            height:70px;
            transition:var(--transition);
        }
        .nav-wrap {
            display:flex; align-items:center; justify-content:space-between;
            height:70px;
            gap:1rem;
        }
        .logo-wrap {
            display:flex; align-items:center; gap:0.6rem;
            cursor:pointer;
            flex-shrink:0;
        }
        .logo-icon {
            width:38px; height:38px; border-radius:10px;
            background: linear-gradient(135deg, var(--primary), #047857);
            color:#fff; font-size:1.3rem; font-weight:900;
            display:flex; align-items:center; justify-content:center;
            box-shadow:0 2px 8px rgba(5,150,105,0.25);
        }
        .logo-text { font-size:1.5rem; font-weight:800; color:var(--text-dark); letter-spacing:-0.5px; }
        .logo-text span { color:var(--primary); }
        .nav-links { display:flex; align-items:center; gap:2rem; }
        .nav-links li a {
            position:relative;
            font-size:0.95rem; font-weight:500; color:var(--text-dark);
            padding:0.25rem 0;
            transition:var(--transition);
        }
        .nav-links li a::after {
            content:''; position:absolute; left:0; bottom:-2px;
            width:0; height:2px; background:var(--primary);
            border-radius:2px; transition:var(--transition);
        }
        .nav-links li a:hover::after,
        .nav-links li a.active::after { width:100%; }
        .nav-links li a.active { color:var(--primary); font-weight:600; }
        .nav-cta {
            background:var(--secondary); color:#fff; font-weight:700;
            padding:0.6rem 1.6rem; border-radius:var(--radius-sm);
            border:none; cursor:pointer; font-size:0.95rem;
            transition:var(--transition); white-space:nowrap;
            box-shadow:0 2px 10px rgba(234,88,12,0.25);
        }
        .nav-cta:hover { background:var(--secondary-dark); transform:scale(1.02); }
        .hamburger {
            display:none; flex-direction:column; gap:5px;
            background:none; border:none; cursor:pointer;
            padding:6px; border-radius:6px;
        }
        .hamburger span {
            width:26px; height:3px; background:var(--text-dark);
            border-radius:4px; transition:var(--transition);
        }
        .mobile-menu {
            display:none; position:fixed; top:70px; left:0; right:0;
            background:var(--bg-dark); padding:1.5rem 2rem;
            box-shadow:var(--shadow-lg); z-index:999;
            flex-direction:column; gap:1rem;
        }
        .mobile-menu a {
            color:rgba(255,255,255,0.85); font-size:1.05rem; font-weight:500;
            padding:0.5rem 0; border-bottom:1px solid rgba(255,255,255,0.06);
            transition:var(--transition);
        }
        .mobile-menu a:hover { color:#fff; padding-left:0.5rem; }
        .nav-cta-mobile {
            background:var(--secondary); color:#fff; font-weight:700;
            padding:0.8rem 1.6rem; border-radius:var(--radius-sm);
            text-align:center; margin-top:0.5rem;
            display:block; border:none; cursor:pointer;
        }

        /* breadcrumb */
        .breadcrumb-wrap {
            padding-top:100px; padding-bottom:0.5rem;
            background:var(--bg-light);
        }
        .breadcrumb {
            display:flex; align-items:center; flex-wrap:wrap;
            gap:0.4rem 0.6rem; font-size:0.85rem; color:var(--text-gray);
        }
        .breadcrumb a { color:var(--text-gray); }
        .breadcrumb a:hover { color:var(--primary); }
        .breadcrumb i { font-size:0.65rem; color:var(--text-gray); }

        /* article main */
        .article-section {
            background:var(--bg-white); padding:2.5rem 0 3rem;
        }
        .article-header { margin-bottom:2rem; }
        .article-header h1 {
            font-size:2.2rem; font-weight:800; line-height:1.25;
            color:var(--text-dark); margin-bottom:1rem;
        }
        .article-meta {
            display:flex; align-items:center; flex-wrap:wrap;
            gap:0.6rem 1.2rem; color:var(--text-gray); font-size:0.9rem;
        }
        .article-meta .badge {
            background:rgba(5,150,105,0.10); color:var(--primary);
            padding:0.2rem 0.8rem; border-radius:999px;
            font-size:0.8rem; font-weight:600;
        }
        .article-meta .sep { color:var(--border-light); font-size:0.5rem; }
        .article-body {
            font-size:1rem; line-height:1.9; color:#1E293B;
        }
        .article-body p { margin-bottom:1.2rem; }
        .article-body h2 { font-size:1.5rem; font-weight:700; margin:2rem 0 1rem; color:var(--text-dark); }
        .article-body h3 { font-size:1.25rem; font-weight:600; margin:1.5rem 0 0.8rem; color:var(--text-dark); }
        .article-body img { border-radius:var(--radius-sm); margin:1.5rem 0; }
        .article-body blockquote {
            border-left:4px solid var(--primary);
            background:rgba(5,150,105,0.04);
            padding:1rem 1.5rem; margin:1.5rem 0;
            border-radius:0 var(--radius-sm) var(--radius-sm) 0;
            font-style:italic; color:#374151;
        }
        .article-body ul, .article-body ol { margin:1rem 0 1rem 1.8rem; }
        .article-body li { margin-bottom:0.4rem; }
        .article-body ul li { list-style:disc; }
        .article-body ol li { list-style:decimal; }
        .article-body a { color:var(--primary); text-decoration:underline; }
        .article-body a:hover { color:var(--primary-dark); }
        .article-body table { width:100%; border-collapse:collapse; margin:1.5rem 0; }
        .article-body th, .article-body td {
            border:1px solid var(--border-light); padding:0.6rem 1rem; text-align:left;
        }
        .article-body th { background:var(--bg-light); font-weight:600; }
        .article-body code {
            background:#F1F5F9; padding:0.15rem 0.5rem; border-radius:4px;
            font-size:0.9em; font-family: monospace;
        }
        .article-body pre {
            background:#1E293B; color:#E2E8F0; padding:1.2rem 1.5rem;
            border-radius:var(--radius-sm); overflow-x:auto; margin:1.5rem 0;
            font-size:0.9rem; line-height:1.6;
        }
        .article-body pre code { background:transparent; padding:0; color:inherit; }

        /* related */
        .related-section { background:var(--bg-light); padding:3rem 0; }
        .related-section h2 {
            font-size:1.6rem; font-weight:700; margin-bottom:2rem;
            color:var(--text-dark); position:relative;
            display:inline-block;
        }
        .related-section h2::after {
            content:''; display:block; width:60%; height:3px;
            background:var(--primary); border-radius:4px; margin-top:0.3rem;
        }
        .related-grid {
            display:grid; grid-template-columns:repeat(3,1fr); gap:1.5rem;
        }
        .related-card {
            background:var(--bg-white); border-radius:var(--radius);
            overflow:hidden; box-shadow:var(--shadow-sm);
            transition:var(--transition); border:1px solid rgba(0,0,0,0.04);
        }
        .related-card:hover {
            box-shadow:var(--shadow-lg); transform:translateY(-3px);
        }
        .related-card img {
            width:100%; height:160px; object-fit:cover; border-radius:0;
        }
        .related-card-body { padding:1.2rem; }
        .related-card-body h4 {
            font-size:1rem; font-weight:600; color:var(--text-dark);
            margin-bottom:0.5rem; line-height:1.4;
            display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical;
            overflow:hidden;
        }
        .related-card-body h4:hover { color:var(--primary); }
        .related-card-body .time {
            font-size:0.8rem; color:var(--text-gray);
        }
        .back-link-wrap { text-align:center; margin-top:2rem; }
        .back-link {
            display:inline-flex; align-items:center; gap:0.5rem;
            color:var(--primary); font-weight:600; font-size:0.95rem;
        }
        .back-link:hover { color:var(--primary-dark); gap:0.8rem; }

        /* not found */
        .not-found { text-align:center; padding:4rem 2rem; }
        .not-found i { font-size:3rem; color:var(--text-gray); margin-bottom:1rem; }
        .not-found h2 { font-size:1.5rem; color:var(--text-dark); margin-bottom:0.5rem; }
        .not-found p { color:var(--text-gray); margin-bottom:1.5rem; }
        .not-found a { color:var(--primary); font-weight:600; }
        .not-found a:hover { text-decoration:underline; }

        /* footer */
        .site-footer {
            background:var(--bg-dark); color:rgba(255,255,255,0.70);
            padding:3.5rem 0 0; font-size:0.9rem;
        }
        .footer-grid {
            display:grid; grid-template-columns:1.8fr 1fr 1fr 1fr;
            gap:2.5rem; padding-bottom:2rem;
            border-bottom:1px solid rgba(255,255,255,0.06);
        }
        .footer-brand .logo-wrap { margin-bottom:1rem; }
        .footer-brand .logo-text { color:#fff; }
        .footer-brand p { line-height:1.7; color:rgba(255,255,255,0.55); max-width:340px; }
        .footer-col h4 {
            color:#fff; font-size:1rem; font-weight:600;
            margin-bottom:1.2rem; position:relative;
        }
        .footer-col ul li { margin-bottom:0.6rem; }
        .footer-col ul li a { color:rgba(255,255,255,0.55); transition:var(--transition); }
        .footer-col ul li a:hover { color:var(--secondary); padding-left:3px; }
        .footer-bottom {
            display:flex; justify-content:space-between; align-items:center;
            flex-wrap:wrap; gap:0.8rem;
            padding:1.5rem 0; font-size:0.8rem;
            color:rgba(255,255,255,0.40);
        }
        .footer-bottom a { color:rgba(255,255,255,0.40); }
        .footer-bottom a:hover { color:var(--secondary); }

        /* modal */
        .modal-overlay {
            display:none; position:fixed; inset:0; z-index:2000;
            background:rgba(0,0,0,0.55); backdrop-filter:blur(4px);
            align-items:center; justify-content:center;
            padding:1rem;
        }
        .modal-overlay.active { display:flex; }
        .modal-box {
            background:var(--bg-white); border-radius:1.2rem;
            padding:2.5rem 2rem 2rem; max-width:480px; width:100%;
            position:relative; box-shadow:0 25px 60px rgba(0,0,0,0.3);
            animation:modalIn 0.3s ease;
        }
        @keyframes modalIn { from{opacity:0;transform:scale(0.95) translateY(10px);} to{opacity:1;transform:scale(1) translateY(0);} }
        .modal-close {
            position:absolute; top:1rem; right:1.2rem;
            background:none; border:none; font-size:1.6rem;
            cursor:pointer; color:var(--text-gray); line-height:1;
            transition:var(--transition);
        }
        .modal-close:hover { color:var(--text-dark); transform:rotate(90deg); }
        .modal-box h3 { font-size:1.4rem; font-weight:700; margin-bottom:0.3rem; color:var(--text-dark); }
        .modal-box p.sub { color:var(--text-gray); margin-bottom:1.5rem; font-size:0.9rem; }
        .modal-box .form-group { margin-bottom:1rem; }
        .modal-box .form-group label { display:block; font-size:0.85rem; font-weight:500; margin-bottom:0.3rem; color:var(--text-dark); }
        .modal-box .form-group input,
        .modal-box .form-group select {
            width:100%; padding:0.7rem 1rem; border:1.5px solid var(--border-light);
            border-radius:var(--radius-sm); font-size:0.95rem;
            transition:var(--transition); background:var(--bg-light);
            outline:none;
        }
        .modal-box .form-group input:focus,
        .modal-box .form-group select:focus { border-color:var(--primary); box-shadow:0 0 0 3px rgba(5,150,105,0.12); }
        .modal-box .submit-btn {
            width:100%; background:var(--secondary); color:#fff;
            font-weight:700; padding:0.8rem; border:none;
            border-radius:var(--radius-sm); font-size:1rem; cursor:pointer;
            transition:var(--transition); margin-top:0.5rem;
        }
        .modal-box .submit-btn:hover { background:var(--secondary-dark); }
        .modal-box .privacy-note {
            font-size:0.75rem; color:var(--text-gray); text-align:center;
            margin-top:1rem; line-height:1.5;
        }

        /* responsive */
        @media (max-width:1024px) {
            .footer-grid { grid-template-columns:1fr 1fr; }
        }
        @media (max-width:768px) {
            .nav-links, .nav-cta { display:none; }
            .hamburger { display:flex; }
            .mobile-menu.open { display:flex; }
            .article-header h1 { font-size:1.6rem; }
            .related-grid { grid-template-columns:1fr; }
            .footer-grid { grid-template-columns:1fr; gap:2rem; }
            .footer-brand p { max-width:100%; }
            .footer-bottom { flex-direction:column; text-align:center; }
            .article-meta { gap:0.4rem 0.8rem; font-size:0.8rem; }
        }
        @media (max-width:520px) {
            .container { padding:0 1rem; }
            .breadcrumb-wrap { padding-top:90px; }
            .article-section { padding:1.5rem 0 2rem; }
            .article-header h1 { font-size:1.35rem; }
            .modal-box { padding:1.8rem 1.2rem 1.5rem; }
        }

/* roulang page: category2 */
:root {
            --primary: #059669;
            --secondary: #EA580C;
            --accent: #D4A84B;
            --dark: #0F172A;
            --light: #F8FAFC;
            --text: #1e293b;
            --text-light: #64748b;
            --border: #e2e8f0;
            --radius: 0.75rem;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
            --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
            --shadow-lg: 0 12px 32px rgba(0,0,0,0.14);
            --font-h1: 2.5rem;
            --font-h2: 2rem;
            --font-h3: 1.5rem;
            --font-body: 1rem;
            --font-small: 0.875rem;
            --line-tight: 1.2;
            --line-body: 1.7;
        }
        *, *::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-body); line-height: var(--line-body); color: var(--text); background: #fff; -webkit-font-smoothing: antialiased; }
        img { max-width: 100%; height: auto; display: block; border-radius: 8px; }
        a { text-decoration: none; color: inherit; }
        .container { max-width: 80rem; margin: 0 auto; padding-left: 1.25rem; padding-right: 1.25rem; }
        @media (min-width: 640px) { .container { padding-left: 2rem; padding-right: 2rem; } }
        .site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 100; background: rgba(255,255,255,0.92); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); box-shadow: 0 1px 4px rgba(0,0,0,0.06); border-bottom: 1px solid rgba(226,232,240,0.5); }
        .nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 70px; }
        .logo-wrap { display: flex; align-items: center; gap: 0.5rem; }
        .logo-icon { width: 38px; height: 38px; background: linear-gradient(135deg, #059669, #047857); border-radius: 10px; display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 800; font-size: 1.3rem; box-shadow: 0 2px 8px rgba(5,150,105,0.25); }
        .logo-text { font-size: 1.35rem; font-weight: 700; color: #0F172A; letter-spacing: -0.02em; }
        .logo-text span { color: #059669; }
        .nav-links { display: flex; align-items: center; gap: 0.25rem; list-style: none; }
        .nav-links li a { padding: 0.5rem 1rem; font-size: 0.95rem; font-weight: 500; color: #334155; border-radius: 6px; transition: all 0.2s; position: relative; }
        .nav-links li a::after { content: ''; position: absolute; bottom: 2px; left: 1rem; right: 1rem; height: 2px; background: #059669; border-radius: 2px; transform: scaleX(0); transition: transform 0.25s; }
        .nav-links li a:hover::after, .nav-links li a.active::after { transform: scaleX(1); }
        .nav-links li a:hover { background: rgba(5,150,105,0.06); color: #059669; }
        .nav-links li a.active { color: #059669; font-weight: 600; }
        .nav-cta { background: #EA580C; color: #fff; padding: 0.65rem 1.75rem; border-radius: 0.5rem; font-weight: 700; font-size: 0.95rem; border: none; cursor: pointer; transition: all 0.25s; box-shadow: 0 2px 10px rgba(234,88,12,0.3); }
        .nav-cta:hover { background: #D4500A; transform: scale(1.03); box-shadow: 0 4px 16px rgba(234,88,12,0.4); }
        .nav-cta:active { transform: scale(0.97); }
        .hamburger { display: none; flex-direction: column; justify-content: center; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
        .hamburger span { width: 26px; height: 2.5px; background: #0F172A; border-radius: 3px; transition: all 0.3s; }
        .mobile-menu { display: none; position: fixed; top: 70px; left: 0; right: 0; background: #0F172A; padding: 1.5rem 2rem; z-index: 99; box-shadow: 0 12px 32px rgba(0,0,0,0.3); }
        .mobile-menu a { display: block; color: #fff; padding: 0.85rem 0; font-size: 1.05rem; font-weight: 500; border-bottom: 1px solid rgba(255,255,255,0.08); transition: color 0.2s; }
        .mobile-menu a:hover { color: #EA580C; }
        .mobile-menu .nav-cta-mobile { background: #EA580C; color: #fff; text-align: center; padding: 0.85rem; border-radius: 8px; font-weight: 700; margin-top: 0.75rem; border-bottom: none; }
        .mobile-menu.show { display: block; }
        @media (max-width: 768px) {
            .nav-links { display: none; }
            .nav-cta { display: none; }
            .hamburger { display: flex; }
        }
        @media (min-width: 769px) {
            .mobile-menu { display: none !important; }
        }

        .page-hero { padding: 120px 0 70px; background: #0F172A; position: relative; overflow: hidden; }
        .page-hero::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat; opacity: 0.15; }
        .page-hero .hero-overlay { position: absolute; inset: 0; background: linear-gradient(135deg, rgba(15,23,42,0.92) 40%, rgba(5,150,105,0.25) 100%); }
        .page-hero .container { position: relative; z-index: 2; }
        .section-title { font-size: var(--font-h2); font-weight: 700; line-height: var(--line-tight); color: #0F172A; }
        .section-title .underline-accent { display: inline-block; padding-bottom: 0.25rem; border-bottom: 3px solid #059669; }
        .section-subtitle { font-size: 1.05rem; color: #64748b; max-width: 640px; }

        .info-block { display: flex; align-items: center; gap: 3rem; padding: 2.5rem 0; }
        .info-block.reverse { flex-direction: row-reverse; }
        .info-block .info-text { flex: 1; }
        .info-block .info-text h3 { font-size: 1.6rem; font-weight: 700; color: #0F172A; margin-bottom: 0.75rem; line-height: 1.2; }
        .info-block .info-text p { color: #475569; line-height: 1.8; margin-bottom: 0.75rem; }
        .info-block .info-img { flex: 1; border-radius: 12px; overflow: hidden; box-shadow: var(--shadow-md); transition: transform 0.4s, box-shadow 0.4s; }
        .info-block .info-img:hover { transform: scale(1.01); box-shadow: var(--shadow-lg); }
        @media (max-width: 768px) {
            .info-block, .info-block.reverse { flex-direction: column; gap: 1.5rem; }
            .info-block .info-text h3 { font-size: 1.3rem; }
        }

        .step-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
        .step-card { background: #fff; border-radius: 12px; padding: 2rem 1.5rem; text-align: center; box-shadow: var(--shadow-sm); border: 1px solid #f1f5f9; transition: all 0.3s; position: relative; }
        .step-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
        .step-num { width: 48px; height: 48px; background: #059669; color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 1.3rem; margin: 0 auto 1rem; box-shadow: 0 4px 12px rgba(5,150,105,0.25); }
        .step-card h4 { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.5rem; color: #0F172A; }
        .step-card p { font-size: 0.9rem; color: #64748b; line-height: 1.6; }
        @media (max-width: 768px) { .step-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; } }
        @media (max-width: 480px) { .step-grid { grid-template-columns: 1fr; } }

        .advantage-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
        .adv-card { background: #fff; border-radius: 12px; padding: 2rem 1.5rem; text-align: center; box-shadow: var(--shadow-sm); border-top: 4px solid #059669; transition: all 0.3s; }
        .adv-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
        .adv-card .adv-icon { font-size: 2.2rem; color: #EA580C; margin-bottom: 1rem; }
        .adv-card h4 { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.5rem; color: #0F172A; }
        .adv-card p { font-size: 0.9rem; color: #64748b; line-height: 1.6; }
        @media (max-width: 768px) { .advantage-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; } }
        @media (max-width: 480px) { .advantage-grid { grid-template-columns: 1fr; } }

        .badge-tag { display: inline-block; background: rgba(5,150,105,0.1); color: #059669; padding: 0.25rem 0.85rem; border-radius: 9999px; font-size: 0.8rem; font-weight: 600; }

        .faq-item { border-bottom: 1px solid #e2e8f0; }
        .faq-question { display: flex; justify-content: space-between; align-items: center; padding: 1.25rem 0; cursor: pointer; font-weight: 600; font-size: 1.05rem; color: #0F172A; transition: color 0.2s; }
        .faq-question:hover { color: #059669; }
        .faq-question .faq-icon { transition: transform 0.3s; font-size: 1.1rem; color: #EA580C; }
        .faq-item.open .faq-icon { transform: rotate(45deg); }
        .faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease, padding 0.3s ease; padding: 0 1rem 0 0; }
        .faq-item.open .faq-answer { max-height: 300px; padding-bottom: 1.25rem; }
        .faq-answer p { color: #475569; line-height: 1.8; }

        .modal-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.55); z-index: 200; align-items: center; justify-content: center; padding: 1.5rem; backdrop-filter: blur(4px); }
        .modal-overlay.show { display: flex; }
        .modal-box { background: #fff; border-radius: 1.25rem; max-width: 460px; width: 100%; padding: 2.5rem 2rem; box-shadow: 0 24px 64px rgba(0,0,0,0.25); position: relative; animation: modalIn 0.3s ease; }
        @keyframes modalIn { from { opacity: 0; transform: scale(0.95) translateY(20px); } to { opacity: 1; transform: scale(1) translateY(0); } }
        .modal-close { position: absolute; top: 1rem; right: 1.25rem; background: none; border: none; font-size: 1.6rem; color: #94a3b8; cursor: pointer; transition: color 0.2s; }
        .modal-close:hover { color: #EA580C; }
        .modal-box h3 { font-size: 1.5rem; font-weight: 700; color: #0F172A; margin-bottom: 0.5rem; }
        .modal-box p.sub { color: #64748b; font-size: 0.95rem; margin-bottom: 1.5rem; }

        .form-group { margin-bottom: 1rem; }
        .form-group label { display: block; font-weight: 600; font-size: 0.9rem; color: #1e293b; margin-bottom: 0.3rem; }
        .form-group input, .form-group select { width: 100%; padding: 0.75rem 1rem; border: 1.5px solid #e2e8f0; border-radius: 0.5rem; font-size: 0.95rem; transition: border 0.25s, box-shadow 0.25s; background: #fff; }
        .form-group input:focus, .form-group select:focus { outline: none; border-color: #059669; box-shadow: 0 0 0 3px rgba(5,150,105,0.12); }
        .btn-submit { width: 100%; padding: 0.85rem; background: #EA580C; color: #fff; font-weight: 700; font-size: 1.05rem; border: none; border-radius: 0.5rem; cursor: pointer; transition: all 0.25s; box-shadow: 0 2px 12px rgba(234,88,12,0.3); }
        .btn-submit:hover { background: #D4500A; box-shadow: 0 4px 20px rgba(234,88,12,0.4); transform: translateY(-1px); }
        .btn-submit:active { transform: scale(0.98); }
        .privacy-note { font-size: 0.8rem; color: #94a3b8; text-align: center; margin-top: 1rem; line-height: 1.5; }

        .site-footer { background: #0F172A; color: #94a3b8; padding: 3.5rem 0 0; }
        .footer-grid { display: grid; grid-template-columns: 1.8fr 1fr 1fr 1fr; gap: 2.5rem; padding-bottom: 2.5rem; border-bottom: 1px solid rgba(255,255,255,0.08); }
        .footer-brand .logo-wrap { margin-bottom: 1rem; }
        .footer-brand .logo-text { color: #fff; }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; max-width: 320px; }
        .footer-col h4 { color: #fff; font-weight: 600; font-size: 1rem; margin-bottom: 1rem; }
        .footer-col ul { list-style: none; }
        .footer-col ul li { margin-bottom: 0.5rem; }
        .footer-col ul li a { font-size: 0.9rem; color: #94a3b8; transition: color 0.2s; }
        .footer-col ul li a:hover { color: #EA580C; }
        .footer-bottom { display: flex; justify-content: space-between; align-items: center; padding: 1.5rem 0; font-size: 0.85rem; flex-wrap: wrap; gap: 0.5rem; }
        .footer-bottom a { color: #94a3b8; transition: color 0.2s; }
        .footer-bottom a:hover { color: #EA580C; }
        @media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; } .footer-brand { grid-column: span 2; } }
        @media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } .footer-brand { grid-column: span 1; } }

        .btn-outline { display: inline-flex; align-items: center; gap: 0.4rem; border: 2px solid #059669; color: #059669; padding: 0.65rem 1.75rem; border-radius: 0.5rem; font-weight: 600; font-size: 0.95rem; transition: all 0.25s; background: transparent; cursor: pointer; }
        .btn-outline:hover { background: #059669; color: #fff; }
        .btn-solid { display: inline-flex; align-items: center; gap: 0.4rem; background: #EA580C; color: #fff; padding: 0.75rem 2rem; border-radius: 0.5rem; font-weight: 700; font-size: 1rem; border: none; cursor: pointer; transition: all 0.25s; box-shadow: 0 2px 12px rgba(234,88,12,0.3); }
        .btn-solid:hover { background: #D4500A; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(234,88,12,0.35); }
        .btn-solid:active { transform: scale(0.97); }

        .section-divider { width: 60px; height: 3px; background: #059669; border-radius: 3px; margin: 0.75rem auto 1.5rem; }

        .bg-soft { background: #F8FAFC; }
        .bg-dark { background: #0F172A; }
        .text-accent { color: #D4A84B; }
        .text-emerald { color: #059669; }

        .game-type-card { background: #fff; border-radius: 12px; padding: 1.5rem; box-shadow: var(--shadow-sm); border-left: 4px solid #059669; transition: all 0.3s; }
        .game-type-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
        .game-type-card .gt-icon { font-size: 2rem; color: #EA580C; margin-bottom: 0.75rem; }
        .game-type-card h4 { font-size: 1.1rem; font-weight: 700; color: #0F172A; margin-bottom: 0.5rem; }
        .game-type-card p { font-size: 0.9rem; color: #64748b; line-height: 1.7; }
        .game-type-card .gt-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 0.75rem; }

        .data-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; text-align: center; }
        .data-strip .data-item .num { font-size: 2.8rem; font-weight: 900; color: #D4A84B; line-height: 1.1; }
        .data-strip .data-item .label { font-size: 0.95rem; color: #cbd5e1; margin-top: 0.3rem; }
        @media (max-width: 640px) { .data-strip { grid-template-columns: repeat(2, 1fr); gap: 1.5rem; } }

        .hero-title { font-size: clamp(1.8rem, 4.5vw, 2.8rem); font-weight: 900; color: #fff; line-height: 1.15; }
        .hero-sub { font-size: 1.15rem; color: #94a3b8; max-width: 600px; line-height: 1.6; }

        @media (max-width: 480px) {
            .hero-title { font-size: 1.6rem; }
            .section-title { font-size: 1.5rem; }
            .page-hero { padding: 100px 0 50px; }
        }

        .scroll-fade { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
        .scroll-fade.visible { opacity: 1; transform: translateY(0); }