/* roulang page: index */
:root {
            --brand: #0A3D2C;
            --brand-light: #15803D;
            --brand-bright: #16A34A;
            --accent: #F97316;
            --accent-deep: #EA580C;
            --glow: #4ADE80;
            --bg: #F7F8F6;
            --surface: #FFFFFF;
            --ink: #1A2E24;
            --muted: #556B5F;
            --line: #E2E8E4;
            --shadow-card: 0 8px 24px rgba(10, 61, 44, 0.08);
            --shadow-hover: 0 14px 34px rgba(10, 61, 44, 0.15);
            --radius-card: 20px;
            --radius-mid: 14px;
            --radius-btn: 999px;
            --transition: 0.22s ease;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body { font-family: var(--font-sans, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif); color: var(--ink); background: var(--bg); line-height: 1.75; font-size: 15px; -webkit-font-smoothing: antialiased; }
        img { max-width: 100%; display: block; }
        a { text-decoration: none; color: inherit; }
        button { cursor: pointer; font-family: inherit; border: none; background: none; }
        input, textarea { font-family: inherit; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        @media (max-width: 1024px) { .container { padding: 0 20px; } }
        @media (max-width: 640px) { .container { padding: 0 16px; } }

        /* Navigation */
        .site-header { position: sticky; top: 0; z-index: 60; background: rgba(10, 61, 44, 0.97); backdrop-filter: blur(8px); border-bottom: 1px solid rgba(255,255,255,0.1); transition: box-shadow 0.3s; }
        .site-header.scrolled { box-shadow: 0 6px 24px rgba(10, 61, 44, 0.35); }
        .nav-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 20px; }
        .nav-logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
        .nav-logo-icon { width: 36px; height: 36px; background: linear-gradient(135deg, var(--accent), #EA580C); border-radius: 10px; display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 700; font-size: 16px; }
        .nav-logo-text { font-weight: 700; font-size: 18px; color: #fff; letter-spacing: 0.5px; }
        .nav-links { display: flex; align-items: center; gap: 28px; list-style: none; }
        .nav-links a { color: #C5D6CD; font-size: 15px; font-weight: 500; transition: color 0.2s; padding: 6px 2px; border-bottom: 2px solid transparent; }
        .nav-links a:hover, .nav-links a.active { color: #fff; border-bottom-color: var(--accent); }
        .nav-cta { background: var(--accent); color: #fff; padding: 8px 20px; border-radius: 999px; font-weight: 600; font-size: 14px; transition: background 0.2s, transform 0.2s, box-shadow 0.2s; white-space: nowrap; }
        .nav-cta:hover { background: #EA580C; transform: translateY(-1px); box-shadow: 0 6px 18px rgba(249, 115, 22, 0.4); }
        .nav-cta:focus-visible { outline: 2px solid var(--glow); outline-offset: 2px; }
        .nav-burger { display: none; flex-direction: column; gap: 5px; background: none; padding: 8px; }
        .nav-burger span { width: 24px; height: 3px; background: #fff; border-radius: 2px; transition: 0.3s; }
        .nav-burger.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
        .nav-burger.open span:nth-child(2) { opacity: 0; }
        .nav-burger.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
        .mobile-menu { display: none; flex-direction: column; background: #0A3D2C; padding: 16px 24px 24px; gap: 8px; border-top: 1px solid rgba(255,255,255,0.1); }
        .mobile-menu a { color: #C5D6CD; font-size: 16px; padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,0.08); font-weight: 500; }
        .mobile-menu a:hover { color: #fff; }
        .mobile-menu .nav-cta { margin-top: 12px; text-align: center; }
        @media (max-width: 900px) {
            .nav-links { display: none; }
            .nav-burger { display: flex; }
            .mobile-menu.open { display: flex; }
        }

        /* Buttons */
        .btn-primary { display: inline-flex; align-items: center; justify-content: center; gap: 8px; background: var(--accent); color: #fff; padding: 12px 28px; border-radius: 999px; font-weight: 600; font-size: 15px; transition: background 0.25s, transform 0.25s, box-shadow 0.25s; }
        .btn-primary:hover { background: var(--accent-deep); transform: translateY(-2px); box-shadow: 0 10px 28px rgba(249, 115, 22, 0.38); }
        .btn-primary:active { transform: translateY(0); box-shadow: 0 4px 12px rgba(249, 115, 22, 0.28); }
        .btn-primary:focus-visible { outline: 2px solid var(--glow); outline-offset: 3px; }
        .btn-secondary { display: inline-flex; align-items: center; justify-content: center; gap: 8px; background: transparent; color: var(--brand); border: 2px solid var(--brand); padding: 10px 26px; border-radius: 999px; font-weight: 600; font-size: 15px; transition: background 0.25s, color 0.25s, border-color 0.25s; }
        .btn-secondary:hover { background: rgba(10, 61, 44, 0.08); border-color: var(--brand-light); color: var(--brand-light); }
        .btn-secondary:focus-visible { outline: 2px solid var(--glow); outline-offset: 3px; }
        .btn-white { display: inline-flex; align-items: center; justify-content: center; gap: 8px; background: #fff; color: var(--brand); padding: 12px 28px; border-radius: 999px; font-weight: 600; font-size: 15px; transition: background 0.25s, transform 0.25s; }
        .btn-white:hover { background: #E8F5ED; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(0,0,0,0.2); }
        .btn-glow { display: inline-flex; align-items: center; justify-content: center; gap: 8px; background: var(--glow); color: #0A3D2C; padding: 12px 28px; border-radius: 999px; font-weight: 700; font-size: 15px; transition: background 0.25s, transform 0.25s; }
        .btn-glow:hover { background: #22C55E; transform: translateY(-2px); box-shadow: 0 10px 28px rgba(74, 222, 128, 0.5); }

        /* Cards */
        .card { background: var(--surface); border-radius: var(--radius-card); box-shadow: var(--shadow-card); border: 1px solid var(--line); transition: box-shadow 0.25s, transform 0.25s; }
        .card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
        .card-dark { background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.12); border-radius: var(--radius-card); transition: background 0.25s; }
        .card-dark:hover { background: rgba(255,255,255,0.1); }

        /* Badge */
        .badge { display: inline-flex; align-items: center; gap: 6px; padding: 4px 14px; border-radius: 999px; font-size: 13px; font-weight: 600; letter-spacing: 0.3px; }
        .badge-orange { background: #FFF3E8; color: #C2570C; }
        .badge-green { background: #E8F5ED; color: #0A3D2C; }
        .badge-glow { background: #ECFDF5; color: #16A34A; border: 1px solid #BBF7D0; }
        .badge-white { background: rgba(255,255,255,0.9); color: #0A3D2C; }

        /* Section */
        .section { padding: 72px 0; }
        @media (max-width: 1024px) { .section { padding: 48px 0; } }
        @media (max-width: 640px) { .section { padding: 40px 0; } }
        .section-title { font-size: 30px; font-weight: 700; line-height: 1.3; color: var(--brand); margin-bottom: 16px; letter-spacing: -0.3px; }
        .section-sub { font-size: 16px; color: var(--muted); max-width: 680px; line-height: 1.8; }
        @media (max-width: 640px) { .section-title { font-size: 24px; } }

        /* Hero Bento */
        .hero-bento { display: grid; grid-template-columns: 1.4fr 1fr; grid-template-rows: auto auto auto; gap: 20px; }
        .hero-main-card { grid-row: span 2; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.15); border-radius: 28px; padding: 44px 40px; display: flex; flex-direction: column; justify-content: center; backdrop-filter: blur(4px); }
        .hero-badge-row { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 18px; }
        .hero-h1 { font-size: 40px; font-weight: 700; color: #fff; line-height: 1.2; letter-spacing: -0.5px; }
        .hero-sub { font-size: 16px; color: #D1E7D9; margin-top: 16px; line-height: 1.8; max-width: 560px; }
        .hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
        .hero-small-card { background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.15); border-radius: 20px; padding: 24px; display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; backdrop-filter: blur(4px); }
        .hero-stat-number { font-size: 30px; font-weight: 700; color: var(--glow); }
        .hero-stat-label { font-size: 13px; color: #D1E7D9; }
        .hero-cta-strip { grid-column: 1 / -1; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.15); border-radius: 20px; padding: 18px 24px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 14px; backdrop-filter: blur(4px); }
        .hero-cta-strip p { color: #D1E7D9; font-size: 14px; }
        @media (max-width: 900px) {
            .hero-bento { grid-template-columns: 1fr; }
            .hero-main-card { grid-row: auto; padding: 32px 24px; }
            .hero-h1 { font-size: 28px; }
            .hero-cta-strip { grid-column: auto; flex-direction: column; text-align: center; }
        }

        /* News */
        .news-item { display: flex; gap: 16px; padding: 20px 0; border-bottom: 1px solid var(--line); transition: background 0.2s; border-radius: 8px; padding-left: 12px; padding-right: 12px; }
        .news-item:hover { background: #F0F4F1; }
        .news-date-box { flex-shrink: 0; width: 60px; height: 60px; background: var(--brand); color: #fff; border-radius: 12px; display: flex; flex-direction: column; align-items: center; justify-content: center; font-weight: 700; }
        .news-date-box .month { font-size: 14px; }
        .news-date-box .day { font-size: 20px; }
        .news-content h3 { font-size: 17px; font-weight: 600; color: var(--ink); margin-bottom: 6px; transition: color 0.2s; }
        .news-content h3 a:hover { color: var(--accent); }
        .news-content p { font-size: 14px; color: var(--muted); line-height: 1.7; }
        .news-more { font-size: 13px; font-weight: 600; color: var(--accent); display: inline-flex; margin-top: 8px; transition: color 0.2s; }
        .news-more:hover { color: #EA580C; }

        /* FAQ */
        .faq-item { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-mid); margin-bottom: 12px; overflow: hidden; transition: box-shadow 0.25s; }
        .faq-item.open { box-shadow: var(--shadow-card); }
        .faq-question { display: flex; align-items: center; gap: 14px; padding: 16px 20px; cursor: pointer; font-weight: 600; font-size: 16px; color: var(--ink); transition: color 0.2s; }
        .faq-question:hover { color: var(--brand-light); }
        .faq-question .faq-icon { flex-shrink: 0; width: 28px; height: 28px; background: var(--accent); color: #fff; border-radius: 8px; display: flex; align-items: center; justify-content: center; font-weight: 700; transition: transform 0.3s; }
        .faq-item.open .faq-question .faq-icon { transform: rotate(45deg); }
        .faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease, padding 0.35s ease; padding: 0 20px 0 62px; font-size: 14px; color: var(--muted); line-height: 1.8; }
        .faq-item.open .faq-answer { max-height: 600px; padding-bottom: 18px; }

        /* Breadcrumb */
        .breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); padding: 16px 0 0; }
        .breadcrumb a { color: var(--brand-light); font-weight: 500; transition: color 0.2s; }
        .breadcrumb a:hover { color: var(--accent); }

        /* Footer */
        .site-footer { background: var(--brand); color: #D1E7D9; padding: 56px 0 24px; margin-top: 0; }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px; }
        .footer-brand-desc { font-size: 14px; color: #A3C0B2; line-height: 1.8; }
        .footer-heading { font-size: 16px; font-weight: 600; color: #fff; margin-bottom: 14px; }
        .footer-links { list-style: none; display: flex; flex-direction: column; gap: 8px; }
        .footer-links a { font-size: 14px; color: #A3C0B2; transition: color 0.2s; }
        .footer-links a:hover { color: var(--glow); }
        .footer-subscribe { display: flex; gap: 10px; flex-wrap: wrap; }
        .footer-subscribe input { flex: 1; min-width: 160px; padding: 10px 16px; border-radius: 12px; border: 1px solid rgba(255,255,255,0.25); background: rgba(255,255,255,0.08); color: #fff; font-size: 14px; outline: none; transition: border-color 0.2s; }
        .footer-subscribe input::placeholder { color: #A3C0B2; }
        .footer-subscribe input:focus { border-color: var(--glow); }
        .footer-bottom { margin-top: 40px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,0.12); display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; font-size: 13px; color: #A3C0B2; }
        .footer-bottom a { color: #A3C0B2; transition: color 0.2s; }
        .footer-bottom a:hover { color: var(--glow); }
        @media (max-width: 900px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
        }
        @media (max-width: 600px) {
            .footer-grid { grid-template-columns: 1fr; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        /* Testimonial */
        .testimonial-card { padding: 24px; border-radius: var(--radius-card); background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow-card); display: flex; flex-direction: column; gap: 12px; }
        .testimonial-quote { font-size: 14px; color: var(--muted); line-height: 1.8; }
        .testimonial-author { display: flex; align-items: center; gap: 12px; }
        .testimonial-avatar { width: 40px; height: 40px; background: linear-gradient(135deg, var(--brand-light), var(--brand-bright)); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 700; font-size: 16px; }
        .testimonial-name { font-weight: 600; font-size: 15px; color: var(--ink); }
        .testimonial-role { font-size: 13px; color: var(--muted); }

        /* Grid */
        .grid-cards { display: grid; gap: 24px; }
        .grid-3 { grid-template-columns: repeat(3, 1fr); }
        .grid-2 { grid-template-columns: repeat(2, 1fr); }
        .grid-4 { grid-template-columns: repeat(4, 1fr); }
        .grid-6 { grid-template-columns: repeat(6, 1fr); }
        @media (max-width: 1024px) { .grid-3, .grid-4, .grid-6 { grid-template-columns: repeat(2, 1fr); } .grid-2 { grid-template-columns: 1fr; } }
        @media (max-width: 640px) { .grid-3, .grid-4, .grid-6, .grid-2 { grid-template-columns: 1fr; } }

        .topic-card { border: 1px solid var(--line); border-radius: var(--radius-card); overflow: hidden; background: var(--surface); box-shadow: var(--shadow-card); transition: box-shadow 0.25s, transform 0.25s; }
        .topic-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); }
        .topic-card img { width: 100%; height: 200px; object-fit: cover; }
        .topic-card-body { padding: 20px; }
        .topic-card-title { font-size: 17px; font-weight: 600; color: var(--ink); margin-bottom: 8px; }
        .topic-card-desc { font-size: 14px; color: var(--muted); line-height: 1.7; }

        .step-item { display: flex; gap: 16px; padding: 20px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-mid); transition: box-shadow 0.25s; }
        .step-item:hover { box-shadow: var(--shadow-card); }
        .step-num { flex-shrink: 0; width: 44px; height: 44px; background: linear-gradient(135deg, var(--brand), var(--brand-bright)); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 18px; }

        .stat-block { display: flex; align-items: center; gap: 20px; padding: 24px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-card); }
        .stat-value { font-size: 32px; font-weight: 700; color: var(--brand); }
        .stat-label { font-size: 14px; color: var(--muted); }

        .bento-grid { display: grid; grid-template-columns: repeat(4, 1fr); grid-template-rows: auto auto; gap: 16px; }
        .bento-item { border-radius: var(--radius-mid); padding: 20px; text-align: center; border: 1px solid var(--line); background: var(--surface); transition: box-shadow 0.25s, border-color 0.25s; }
        .bento-item:hover { box-shadow: var(--shadow-card); border-color: var(--brand-light); }
        .bento-item-icon { font-size: 28px; margin-bottom: 8px; }
        .bento-item-label { font-size: 14px; font-weight: 600; color: var(--ink); }
        @media (max-width: 900px) { .bento-grid { grid-template-columns: repeat(3, 1fr); } }
        @media (max-width: 640px) { .bento-grid { grid-template-columns: repeat(2, 1fr); } }

        .section-dark { background: linear-gradient(135deg, var(--brand) 0%, #0C4A35 50%, #0D563C 100%); color: #fff; }
        .section-dark .section-title { color: #fff; }
        .section-dark .section-sub { color: #D1E7D9; }

/* roulang page: category1 */
:root {
            --brand: #0A3D2C;
            --brand-light: #15803D;
            --brand-bright: #16A34A;
            --accent: #F97316;
            --accent-deep: #EA580C;
            --glow: #4ADE80;
            --bg: #F7F8F6;
            --surface: #FFFFFF;
            --ink: #1A2E24;
            --muted: #556B5F;
            --line: #E2E8E4;
            --shadow-card: 0 8px 24px rgba(10, 61, 44, 0.08);
            --shadow-hover: 0 14px 34px rgba(10, 61, 44, 0.15);
            --radius-card: 20px;
            --radius-mid: 14px;
            --radius-btn: 999px;
            --transition: 0.22s ease;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            color: var(--ink);
            background: var(--bg);
            line-height: 1.75;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
            margin: 0;
            padding: 0;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        img {
            max-width: 100%;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }

        input,
        textarea {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 60;
            background: rgba(10, 61, 44, 0.97);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            transition: box-shadow 0.3s;
        }
        .site-header.scrolled {
            box-shadow: 0 6px 24px rgba(10, 61, 44, 0.35);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 20px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .nav-logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--accent), #EA580C);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 16px;
        }
        .nav-logo-text {
            font-weight: 700;
            font-size: 18px;
            color: #fff;
            letter-spacing: 0.5px;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 24px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links a {
            color: #C5D6CD;
            font-size: 15px;
            font-weight: 500;
            transition: color 0.2s;
            padding: 6px 2px;
            border-bottom: 2px solid transparent;
            white-space: nowrap;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: #fff;
            border-bottom-color: var(--accent);
        }
        .nav-cta {
            background: var(--accent);
            color: #fff;
            padding: 8px 20px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 14px;
            transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }
        .nav-cta:hover {
            background: #EA580C;
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(249, 115, 22, 0.4);
        }
        .nav-cta:focus-visible {
            outline: 2px solid var(--glow);
            outline-offset: 2px;
        }
        .nav-burger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            padding: 8px;
            border: none;
        }
        .nav-burger span {
            width: 24px;
            height: 3px;
            background: #fff;
            border-radius: 2px;
            transition: 0.3s;
        }
        .nav-burger.open span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }
        .nav-burger.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-burger.open span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }
        .mobile-menu {
            display: none;
            flex-direction: column;
            background: #0A3D2C;
            padding: 16px 24px 24px;
            gap: 8px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        .mobile-menu a {
            color: #C5D6CD;
            font-size: 16px;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            font-weight: 500;
        }
        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: #fff;
        }
        .mobile-menu .nav-cta {
            margin-top: 12px;
            text-align: center;
        }
        .mobile-menu.open {
            display: flex;
        }

        /* Buttons */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            padding: 12px 28px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            transition: background 0.25s, transform 0.25s, box-shadow 0.25s;
        }
        .btn-primary:hover {
            background: var(--accent-deep);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(249, 115, 22, 0.38);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(249, 115, 22, 0.28);
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--glow);
            outline-offset: 3px;
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--brand);
            border: 2px solid var(--brand);
            padding: 10px 26px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            transition: background 0.25s, color 0.25s, border-color 0.25s;
        }
        .btn-secondary:hover {
            background: rgba(10, 61, 44, 0.08);
            border-color: var(--brand-light);
            color: var(--brand-light);
        }
        .btn-secondary:focus-visible {
            outline: 2px solid var(--glow);
            outline-offset: 3px;
        }
        .btn-white {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: #fff;
            color: var(--brand);
            padding: 12px 28px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            transition: background 0.25s, transform 0.25s;
        }
        .btn-white:hover {
            background: #E8F5ED;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
        }
        .btn-glow {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--glow);
            color: #0A3D2C;
            padding: 12px 28px;
            border-radius: 999px;
            font-weight: 700;
            font-size: 15px;
            transition: background 0.25s, transform 0.25s;
        }
        .btn-glow:hover {
            background: #22C55E;
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(74, 222, 128, 0.5);
        }

        /* Cards */
        .card {
            background: var(--surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--line);
            transition: box-shadow 0.25s, transform 0.25s;
        }
        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .card-dark {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-card);
            transition: background 0.25s;
        }
        .card-dark:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        /* Badge */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .badge-orange {
            background: #FFF3E8;
            color: #C2570C;
        }
        .badge-green {
            background: #E8F5ED;
            color: #0A3D2C;
        }
        .badge-glow {
            background: #E8FBE8;
            color: #15803D;
            border: 1px solid #4ADE80;
        }
        .badge-white {
            background: rgba(255, 255, 255, 0.14);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.25);
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--muted);
            padding: 16px 0;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--brand-light);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb .sep {
            color: #B8C4BC;
        }
        .breadcrumb .current {
            color: var(--ink);
            font-weight: 500;
        }

        /* Page Banner */
        .page-banner {
            background: linear-gradient(135deg, #0A3D2C 0%, #15803D 55%, #16A34A 100%);
            border-radius: var(--radius-card);
            padding: 48px 40px;
            position: relative;
            overflow: hidden;
            margin-bottom: 40px;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            right: -80px;
            top: -80px;
            width: 300px;
            height: 300px;
            background: rgba(74, 222, 128, 0.12);
            border-radius: 50%;
            pointer-events: none;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            right: 60px;
            bottom: -100px;
            width: 220px;
            height: 220px;
            background: rgba(249, 115, 22, 0.08);
            border-radius: 50%;
            pointer-events: none;
        }
        .page-banner-content {
            position: relative;
            z-index: 2;
            max-width: 70%;
        }
        .page-banner h1 {
            font-size: 34px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 14px;
            line-height: 1.3;
        }
        .page-banner p {
            color: #D1E7D8;
            font-size: 15px;
            line-height: 1.8;
            margin: 0;
            max-width: 600px;
        }
        .banner-stats {
            position: relative;
            z-index: 2;
            display: flex;
            gap: 20px;
            margin-top: 24px;
            flex-wrap: wrap;
        }
        .banner-stat {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 999px;
            padding: 6px 18px;
            color: #fff;
            font-size: 13px;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .banner-stat strong {
            font-weight: 700;
            color: var(--glow);
            font-size: 15px;
        }

        /* Article list layout */
        .category-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 32px;
            align-items: start;
        }
        .article-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }
        .article-card {
            background: var(--surface);
            border-radius: var(--radius-mid);
            border: 1px solid var(--line);
            box-shadow: var(--shadow-card);
            padding: 20px 24px;
            display: flex;
            gap: 20px;
            transition: box-shadow 0.25s, transform 0.25s, border-color 0.2s;
            cursor: pointer;
        }
        .article-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: #C8D9CD;
        }
        .article-date-block {
            flex-shrink: 0;
            width: 64px;
            height: 64px;
            background: #F0F5F1;
            border-radius: 12px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            line-height: 1.2;
        }
        .article-date-block .month {
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            text-transform: uppercase;
        }
        .article-date-block .day {
            font-size: 22px;
            font-weight: 700;
            color: var(--brand);
        }
        .article-content {
            flex: 1;
            min-width: 0;
        }
        .article-content h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--ink);
            margin: 0 0 8px;
            line-height: 1.5;
            transition: color 0.2s;
        }
        .article-card:hover .article-content h3 {
            color: var(--accent);
        }
        .article-content p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
            margin: 0 0 12px;
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 13px;
            color: #8A9B8F;
            flex-wrap: wrap;
        }
        .article-meta .read-more {
            color: var(--accent);
            font-weight: 600;
            font-size: 13px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color 0.2s;
        }
        .article-meta .read-more:hover {
            color: var(--accent-deep);
        }
        .article-thumb {
            flex-shrink: 0;
            width: 120px;
            height: 80px;
            border-radius: 10px;
            overflow: hidden;
            display: none;
        }
        .article-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* Sidebar */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 88px;
        }
        .sidebar-card {
            background: var(--surface);
            border-radius: var(--radius-mid);
            border: 1px solid var(--line);
            box-shadow: var(--shadow-card);
            padding: 24px;
        }
        .sidebar-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--ink);
            margin: 0 0 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid #F0F5F1;
            position: relative;
        }
        .sidebar-card h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 36px;
            height: 2px;
            background: var(--accent);
        }
        .hot-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .hot-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--muted);
            line-height: 1.5;
            transition: color 0.2s;
        }
        .hot-list li:hover {
            color: var(--accent);
        }
        .hot-list .rank {
            flex-shrink: 0;
            width: 26px;
            height: 26px;
            background: #F0F5F1;
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 700;
            color: var(--brand);
        }
        .hot-list li:nth-child(1) .rank {
            background: var(--accent);
            color: #fff;
        }
        .hot-list li:nth-child(2) .rank {
            background: #FCD9B8;
            color: #A34B0A;
        }
        .hot-list li:nth-child(3) .rank {
            background: #FFF3E8;
            color: #C2570C;
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag-cloud a {
            background: #F0F5F1;
            color: var(--muted);
            padding: 5px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            transition: background 0.2s, color 0.2s;
        }
        .tag-cloud a:hover {
            background: var(--brand);
            color: #fff;
        }
        .sidebar-subscribe-form {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .sidebar-subscribe-form input {
            padding: 10px 16px;
            border-radius: 12px;
            border: 1px solid var(--line);
            font-size: 14px;
            outline: none;
            background: #FAFBF9;
            transition: border-color 0.2s, box-shadow 0.2s;
            width: 100%;
        }
        .sidebar-subscribe-form input:focus {
            border-color: var(--glow);
            box-shadow: 0 0 0 3px rgba(74, 222, 128, 0.15);
        }
        .sidebar-subscribe-form button {
            width: 100%;
        }

        /* FAQ */
        .faq-section {
            margin-top: 56px;
        }
        .faq-grid {
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin-top: 24px;
        }
        .faq-item {
            background: var(--surface);
            border-radius: var(--radius-mid);
            border: 1px solid var(--line);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: border-color 0.2s;
        }
        .faq-item.expanded {
            border-color: #C8D9CD;
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 24px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--ink);
            background: none;
            width: 100%;
            text-align: left;
            line-height: 1.5;
        }
        .faq-question .faq-toggle-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            background: #FFF3E8;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 18px;
            font-weight: 700;
            transition: transform 0.3s;
        }
        .faq-item.expanded .faq-toggle-icon {
            transform: rotate(45deg);
            background: var(--accent);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
            color: var(--muted);
            font-size: 14px;
            line-height: 1.8;
        }
        .faq-item.expanded .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* CTA */
        .cta-section {
            margin-top: 56px;
            background: linear-gradient(135deg, #0A3D2C 0%, #15803D 60%, #16A34A 100%);
            border-radius: var(--radius-card);
            padding: 48px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            left: -60px;
            top: -60px;
            width: 200px;
            height: 200px;
            background: rgba(74, 222, 128, 0.1);
            border-radius: 50%;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            right: -40px;
            bottom: -40px;
            width: 160px;
            height: 160px;
            background: rgba(249, 115, 22, 0.08);
            border-radius: 50%;
        }
        .cta-section h2 {
            font-size: 26px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 12px;
            position: relative;
            z-index: 2;
        }
        .cta-section p {
            color: #D1E7D8;
            font-size: 15px;
            margin: 0 0 24px;
            position: relative;
            z-index: 2;
        }
        .cta-section .btn-glow {
            position: relative;
            z-index: 2;
        }

        /* Footer */
        .site-footer {
            background: #0A3D2C;
            color: #C5D6CD;
            margin-top: 64px;
            padding: 48px 0 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-heading {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-brand-desc {
            font-size: 13px;
            color: #9BB4A6;
            line-height: 1.7;
            margin: 0;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-links a {
            color: #9BB4A6;
            font-size: 14px;
            transition: color 0.2s;
        }
        .footer-links a:hover {
            color: #fff;
        }
        .footer-subscribe {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .footer-subscribe input {
            flex: 1;
            min-width: 160px;
            padding: 10px 16px;
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
            font-size: 14px;
            outline: none;
            transition: border-color 0.2s;
        }
        .footer-subscribe input::placeholder {
            color: #9BB4A6;
        }
        .footer-subscribe input:focus {
            border-color: var(--glow);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: space-between;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 13px;
            color: #9BB4A6;
        }
        .footer-bottom a {
            color: #9BB4A6;
            transition: color 0.2s;
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .category-layout {
                grid-template-columns: 1fr 280px;
                gap: 24px;
            }
            .page-banner-content {
                max-width: 85%;
            }
            .page-banner h1 {
                font-size: 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }
            .nav-links {
                display: none;
            }
            .nav-burger {
                display: flex;
            }
            .nav-inner {
                height: 60px;
            }
            .category-layout {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .sidebar {
                position: static;
                flex-direction: column;
            }
            .page-banner {
                padding: 32px 24px;
            }
            .page-banner-content {
                max-width: 100%;
            }
            .page-banner h1 {
                font-size: 24px;
            }
            .article-card {
                padding: 16px;
                flex-direction: column;
            }
            .article-date-block {
                width: auto;
                height: auto;
                flex-direction: row;
                gap: 8px;
                padding: 8px 14px;
                background: #F0F5F1;
            }
            .article-date-block .month {
                font-size: 13px;
            }
            .article-date-block .day {
                font-size: 16px;
            }
            .article-thumb {
                display: block;
                width: 100%;
                height: 160px;
                order: -1;
            }
            .cta-section {
                padding: 32px 24px;
            }
            .cta-section h2 {
                font-size: 22px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .banner-stats {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .nav-inner {
                height: 56px;
            }
            .nav-logo-text {
                font-size: 16px;
            }
            .page-banner {
                padding: 24px 20px;
                border-radius: var(--radius-mid);
            }
            .page-banner h1 {
                font-size: 22px;
            }
            .article-content h3 {
                font-size: 15px;
            }
            .article-meta {
                font-size: 12px;
                gap: 8px;
            }
            .faq-question {
                font-size: 14px;
                padding: 14px 16px;
            }
            .faq-answer {
                font-size: 13px;
            }
            .cta-section h2 {
                font-size: 20px;
            }
        }

/* roulang page: category2 */
:root {
            --brand: #0A3D2C;
            --brand-light: #15803D;
            --brand-bright: #16A34A;
            --accent: #F97316;
            --accent-deep: #EA580C;
            --glow: #4ADE80;
            --bg: #F7F8F6;
            --surface: #FFFFFF;
            --ink: #1A2E24;
            --muted: #556B5F;
            --line: #E2E8E4;
            --shadow-card: 0 8px 24px rgba(10, 61, 44, 0.08);
            --shadow-hover: 0 14px 34px rgba(10, 61, 44, 0.15);
            --radius-card: 20px;
            --radius-mid: 14px;
            --radius-btn: 999px;
            --transition: 0.22s ease;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            color: var(--ink);
            background: var(--bg);
            line-height: 1.75;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
            margin: 0;
            padding: 0;
        }

        * {
            box-sizing: border-box;
        }

        img {
            max-width: 100%;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }

        input,
        textarea {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 60;
            background: rgba(10, 61, 44, 0.97);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            transition: box-shadow 0.3s;
        }

        .site-header.scrolled {
            box-shadow: 0 6px 24px rgba(10, 61, 44, 0.35);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 20px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .nav-logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--accent), #EA580C);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 16px;
        }

        .nav-logo-text {
            font-weight: 700;
            font-size: 18px;
            color: #fff;
            letter-spacing: 0.5px;
        }

        .nav-links {
            display: none;
            align-items: center;
            gap: 28px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            color: #C5D6CD;
            font-size: 15px;
            font-weight: 500;
            transition: color 0.2s;
            padding: 6px 2px;
            border-bottom: 2px solid transparent;
        }

        .nav-links a:hover,
        .nav-links a.active {
            color: #fff;
            border-bottom-color: var(--accent);
        }

        .nav-cta {
            background: var(--accent);
            color: #fff;
            padding: 8px 20px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 14px;
            transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
            white-space: nowrap;
            display: inline-block;
        }

        .nav-cta:hover {
            background: #EA580C;
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(249, 115, 22, 0.4);
        }

        .nav-cta:focus-visible {
            outline: 2px solid var(--glow);
            outline-offset: 2px;
        }

        .nav-burger {
            display: flex;
            flex-direction: column;
            gap: 5px;
            background: none;
            padding: 8px;
        }

        .nav-burger span {
            width: 24px;
            height: 3px;
            background: #fff;
            border-radius: 2px;
            transition: 0.3s;
        }

        .nav-burger.open span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }

        .nav-burger.open span:nth-child(2) {
            opacity: 0;
        }

        .nav-burger.open span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            background: #0A3D2C;
            padding: 16px 24px 24px;
            gap: 8px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

        .mobile-menu a {
            color: #C5D6CD;
            font-size: 16px;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            font-weight: 500;
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: #fff;
        }

        .mobile-menu .nav-cta {
            margin-top: 12px;
            text-align: center;
        }

        .mobile-menu.open {
            display: flex;
        }

        @media (min-width: 1024px) {
            .nav-links {
                display: flex;
            }
            .nav-burger {
                display: none;
            }
            .mobile-menu {
                display: none !important;
            }
        }

        @media (max-width: 1023px) {
            .nav-cta-desktop {
                display: none;
            }
        }

        /* Buttons */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            padding: 12px 28px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            transition: background 0.25s, transform 0.25s, box-shadow 0.25s;
        }

        .btn-primary:hover {
            background: var(--accent-deep);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(249, 115, 22, 0.38);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(249, 115, 22, 0.28);
        }

        .btn-primary:focus-visible {
            outline: 2px solid var(--glow);
            outline-offset: 3px;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--brand);
            border: 2px solid var(--brand);
            padding: 10px 26px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            transition: background 0.25s, color 0.25s, border-color 0.25s;
        }

        .btn-secondary:hover {
            background: rgba(10, 61, 44, 0.08);
            border-color: var(--brand-light);
            color: var(--brand-light);
        }

        .btn-secondary:focus-visible {
            outline: 2px solid var(--glow);
            outline-offset: 3px;
        }

        .btn-white {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: #fff;
            color: var(--brand);
            padding: 12px 28px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            transition: background 0.25s, transform 0.25s;
        }

        .btn-white:hover {
            background: #E8F5ED;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
        }

        .btn-glow {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--glow);
            color: #0A3D2C;
            padding: 12px 28px;
            border-radius: 999px;
            font-weight: 700;
            font-size: 15px;
            transition: background 0.25s, transform 0.25s;
        }

        .btn-glow:hover {
            background: #22C55E;
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(74, 222, 128, 0.5);
        }

        /* Cards */
        .card {
            background: var(--surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--line);
            transition: box-shadow 0.25s, transform 0.25s;
        }

        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .card-dark {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-card);
            transition: background 0.25s;
        }

        .card-dark:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        /* Badge */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.3px;
        }

        .badge-orange {
            background: #FFF3E8;
            color: #C2570C;
        }

        .badge-green {
            background: #E8F5ED;
            color: #0A3D2C;
        }

        .badge-glow {
            background: rgba(74, 222, 128, 0.2);
            color: var(--glow);
            border: 1px solid rgba(74, 222, 128, 0.4);
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--muted);
            flex-wrap: wrap;
            padding: 16px 0;
        }

        .breadcrumb a {
            color: var(--brand);
            font-weight: 500;
            transition: color 0.2s;
        }

        .breadcrumb a:hover {
            color: var(--accent);
        }

        .breadcrumb .sep {
            color: #B0BEB4;
        }

        .breadcrumb .current {
            color: var(--muted);
            font-weight: 500;
        }

        /* Category Hero */
        .cat-hero {
            background: linear-gradient(135deg, #0A3D2C 0%, #15803D 55%, #16A34A 100%);
            border-radius: var(--radius-card);
            padding: 48px 40px;
            color: #fff;
            position: relative;
            overflow: hidden;
            margin-bottom: 48px;
        }

        .cat-hero::after {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(74, 222, 128, 0.2) 0%, transparent 65%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cat-hero::before {
            content: 'bb';
            position: absolute;
            bottom: -40px;
            right: 40px;
            font-size: 180px;
            font-weight: 800;
            color: rgba(255, 255, 255, 0.05);
            pointer-events: none;
            line-height: 1;
            letter-spacing: -10px;
        }

        .cat-hero h1 {
            font-size: 36px;
            font-weight: 700;
            margin: 0 0 16px;
            line-height: 1.3;
            position: relative;
            z-index: 1;
        }

        .cat-hero p {
            font-size: 16px;
            color: #C5D6CD;
            max-width: 600px;
            margin: 0 0 24px;
            line-height: 1.8;
            position: relative;
            z-index: 1;
        }

        .cat-hero-meta {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .cat-hero-stat {
            display: flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: 999px;
            padding: 6px 16px;
            font-size: 13px;
            color: #E8F5ED;
        }

        .cat-hero-stat strong {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
        }

        /* Large Image Banner */
        .banner-large {
            border-radius: var(--radius-card);
            overflow: hidden;
            margin-bottom: 48px;
            position: relative;
            box-shadow: var(--shadow-card);
        }

        .banner-large img {
            width: 100%;
            height: 320px;
            object-fit: cover;
        }

        .banner-large-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 61, 44, 0.15) 0%, rgba(10, 61, 44, 0.65) 100%);
            display: flex;
            align-items: flex-end;
            padding: 32px;
        }

        .banner-large-overlay h2 {
            color: #fff;
            font-size: 24px;
            margin: 0;
            font-weight: 700;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
        }

        /* Alternating Content Blocks */
        .alt-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            margin-bottom: 48px;
        }

        .alt-block.reverse .alt-block-media {
            order: 2;
        }

        .alt-block.reverse .alt-block-content {
            order: 1;
        }

        .alt-block-media {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            position: relative;
        }

        .alt-block-media img {
            width: 100%;
            height: 260px;
            object-fit: cover;
            transition: transform 0.4s;
        }

        .alt-block-media:hover img {
            transform: scale(1.03);
        }

        .alt-block-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            z-index: 2;
        }

        .alt-block-content h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--brand);
            margin: 0 0 16px;
            line-height: 1.4;
        }

        .alt-block-content p {
            font-size: 15px;
            color: var(--muted);
            margin: 0 0 12px;
            line-height: 1.8;
        }

        .alt-block-content .highlight-meta {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: 20px;
        }

        .highlight-meta-item {
            background: #F0F6F1;
            border-radius: 10px;
            padding: 8px 16px;
            font-size: 13px;
            color: var(--brand);
            font-weight: 600;
        }

        /* Data Facts Section */
        .data-facts {
            background: var(--brand);
            border-radius: var(--radius-card);
            padding: 48px 40px;
            margin-bottom: 48px;
            color: #fff;
        }

        .data-facts h2 {
            font-size: 26px;
            font-weight: 700;
            margin: 0 0 32px;
            text-align: center;
            color: #fff;
        }

        .data-facts-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .data-fact-item {
            text-align: center;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-mid);
            padding: 24px 16px;
        }

        .data-fact-item .df-number {
            font-size: 32px;
            font-weight: 800;
            color: var(--glow);
            display: block;
            margin-bottom: 8px;
        }

        .data-fact-item .df-label {
            font-size: 14px;
            color: #C5D6CD;
        }

        /* FAQ */
        .faq-section {
            margin-bottom: 48px;
        }

        .faq-section h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--brand);
            margin: 0 0 24px;
            text-align: center;
        }

        .faq-item {
            background: var(--surface);
            border-radius: var(--radius-mid);
            border: 1px solid var(--line);
            margin-bottom: 12px;
            overflow: hidden;
            transition: box-shadow 0.25s;
        }

        .faq-item:hover {
            box-shadow: var(--shadow-card);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 24px;
            font-size: 15px;
            font-weight: 600;
            color: var(--ink);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: none;
            border: none;
            cursor: pointer;
            transition: color 0.2s;
        }

        .faq-question:hover {
            color: var(--accent);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            background: #FFF3E8;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-weight: 700;
            font-size: 16px;
            transition: transform 0.3s;
        }

        .faq-item.active .faq-question .faq-icon {
            transform: rotate(45deg);
            background: var(--accent);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s;
            padding: 0 24px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.8;
            margin: 0;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, #0A3D2C 0%, #15803D 60%, #16A34A 100%);
            border-radius: var(--radius-card);
            padding: 56px 40px;
            text-align: center;
            margin-bottom: 48px;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -40%;
            left: -30%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(74, 222, 128, 0.2) 0%, transparent 60%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 30px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 16px;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            font-size: 16px;
            color: #C5D6CD;
            margin: 0 0 28px;
            position: relative;
            z-index: 1;
        }

        .cta-section .cta-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        /* Footer */
        .site-footer {
            background: var(--brand);
            color: #C5D6CD;
            padding: 60px 24px 30px;
            margin-top: 60px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            max-width: 1200px;
            margin: 0 auto;
            margin-bottom: 40px;
        }

        .footer-brand-desc {
            font-size: 14px;
            line-height: 1.8;
            color: #9DB8A8;
            margin: 0;
        }

        .footer-heading {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: #9DB8A8;
            font-size: 14px;
            transition: color 0.2s;
        }

        .footer-links a:hover {
            color: var(--glow);
        }

        .footer-subscribe {
            display: flex;
            gap: 8px;
        }

        .footer-subscribe input {
            flex: 1;
            padding: 10px 16px;
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-size: 14px;
            outline: none;
            transition: border-color 0.25s;
        }

        .footer-subscribe input::placeholder {
            color: #9DB8A8;
        }

        .footer-subscribe input:focus {
            border-color: var(--glow);
        }

        .footer-bottom {
            max-width: 1200px;
            margin: 0 auto;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 13px;
            color: #9DB8A8;
        }

        .footer-bottom a {
            color: #E8F5ED;
            font-weight: 500;
        }

        .footer-bottom a:hover {
            color: var(--glow);
        }

        /* Section titles */
        .section-title-group {
            margin-bottom: 32px;
        }

        .section-title-group h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--brand);
            margin: 0 0 8px;
        }

        .section-title-group p {
            font-size: 15px;
            color: var(--muted);
            margin: 0;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .cat-hero {
                padding: 36px 28px;
            }
            .cat-hero h1 {
                font-size: 28px;
            }
            .alt-block {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .alt-block.reverse .alt-block-media {
                order: 1;
            }
            .alt-block.reverse .alt-block-content {
                order: 2;
            }
            .data-facts-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .banner-large img {
                height: 240px;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
            .cat-hero {
                padding: 28px 20px;
                border-radius: var(--radius-mid);
            }
            .cat-hero h1 {
                font-size: 24px;
            }
            .cat-hero p {
                font-size: 14px;
            }
            .banner-large img {
                height: 200px;
            }
            .banner-large-overlay {
                padding: 20px;
            }
            .banner-large-overlay h2 {
                font-size: 18px;
            }
            .alt-block-media img {
                height: 200px;
            }
            .alt-block-content h2 {
                font-size: 20px;
            }
            .data-facts-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .data-facts {
                padding: 32px 20px;
            }
            .cta-section {
                padding: 40px 20px;
            }
            .cta-section h2 {
                font-size: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
            }
            .faq-question {
                font-size: 14px;
                padding: 14px 16px;
            }
            .faq-answer p {
                font-size: 13px;
            }
        }

        @media (max-width: 520px) {
            .cat-hero {
                padding: 20px 16px;
            }
            .cat-hero h1 {
                font-size: 20px;
            }
            .cat-hero-meta {
                gap: 8px;
            }
            .cat-hero-stat {
                font-size: 12px;
                padding: 4px 12px;
            }
            .cat-hero-stat strong {
                font-size: 14px;
            }
            .banner-large img {
                height: 160px;
            }
            .alt-block-media img {
                height: 160px;
            }
            .cta-section h2 {
                font-size: 20px;
            }
            .btn-primary,
            .btn-secondary {
                font-size: 14px;
                padding: 10px 20px;
            }
        }

/* roulang page: category3 */
:root {
            --brand: #0A3D2C;
            --brand-light: #15803D;
            --brand-bright: #16A34A;
            --accent: #F97316;
            --accent-deep: #EA580C;
            --glow: #4ADE80;
            --bg: #F7F8F6;
            --surface: #FFFFFF;
            --ink: #1A2E24;
            --muted: #556B5F;
            --line: #E2E8E4;
            --shadow-card: 0 8px 24px rgba(10, 61, 44, 0.08);
            --shadow-hover: 0 14px 34px rgba(10, 61, 44, 0.15);
            --radius-card: 20px;
            --radius-mid: 14px;
            --radius-btn: 999px;
            --transition: 0.22s ease;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            color: var(--ink);
            background: var(--bg);
            line-height: 1.75;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        *, *::before, *::after {
            box-sizing: border-box;
        }

        img {
            max-width: 100%;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s;
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }

        input, textarea {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 60;
            background: rgba(10, 61, 44, 0.97);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            transition: box-shadow 0.3s;
        }

        .site-header.scrolled {
            box-shadow: 0 6px 24px rgba(10, 61, 44, 0.35);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 20px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .nav-logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--accent), #EA580C);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 16px;
        }

        .nav-logo-text {
            font-weight: 700;
            font-size: 18px;
            color: #fff;
            letter-spacing: 0.5px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            color: #C5D6CD;
            font-size: 15px;
            font-weight: 500;
            transition: color 0.2s, border-color 0.2s;
            padding: 6px 2px;
            border-bottom: 2px solid transparent;
            white-space: nowrap;
        }

        .nav-links a:hover, .nav-links a.active {
            color: #fff;
            border-bottom-color: var(--accent);
        }

        .nav-cta {
            background: var(--accent);
            color: #fff;
            padding: 8px 20px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 14px;
            transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
            white-space: nowrap;
            border: none;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .nav-cta:hover {
            background: #EA580C;
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(249, 115, 22, 0.4);
        }

        .nav-cta:focus-visible {
            outline: 2px solid var(--glow);
            outline-offset: 2px;
        }

        .nav-burger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            padding: 8px;
            border: none;
            cursor: pointer;
        }

        .nav-burger span {
            width: 24px;
            height: 3px;
            background: #fff;
            border-radius: 2px;
            transition: 0.3s;
            display: block;
        }

        .nav-burger.open span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }

        .nav-burger.open span:nth-child(2) {
            opacity: 0;
        }

        .nav-burger.open span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            background: #0A3D2C;
            padding: 16px 24px 24px;
            gap: 8px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

        .mobile-menu a {
            color: #C5D6CD;
            font-size: 16px;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            font-weight: 500;
        }

        .mobile-menu a:hover {
            color: #fff;
        }

        .mobile-menu .nav-cta {
            margin-top: 12px;
            text-align: center;
            justify-content: center;
        }

        .mobile-menu.open {
            display: flex;
        }

        /* Buttons */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            padding: 12px 28px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            transition: background 0.25s, transform 0.25s, box-shadow 0.25s;
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            background: var(--accent-deep);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(249, 115, 22, 0.38);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(249, 115, 22, 0.28);
        }

        .btn-primary:focus-visible {
            outline: 2px solid var(--glow);
            outline-offset: 3px;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--brand);
            border: 2px solid var(--brand);
            padding: 10px 26px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            transition: background 0.25s, color 0.25s, border-color 0.25s;
            cursor: pointer;
        }

        .btn-secondary:hover {
            background: rgba(10, 61, 44, 0.08);
            border-color: var(--brand-light);
            color: var(--brand-light);
        }

        .btn-secondary:focus-visible {
            outline: 2px solid var(--glow);
            outline-offset: 3px;
        }

        .btn-white {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: #fff;
            color: var(--brand);
            padding: 12px 28px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            transition: background 0.25s, transform 0.25s;
            border: none;
            cursor: pointer;
        }

        .btn-white:hover {
            background: #E8F5ED;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
        }

        .btn-glow {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--glow);
            color: #0A3D2C;
            padding: 12px 28px;
            border-radius: 999px;
            font-weight: 700;
            font-size: 15px;
            transition: background 0.25s, transform 0.25s;
            border: none;
            cursor: pointer;
        }

        .btn-glow:hover {
            background: #22C55E;
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(74, 222, 128, 0.5);
        }

        /* Cards */
        .card {
            background: var(--surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--line);
            transition: box-shadow 0.25s, transform 0.25s;
        }

        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .card-dark {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-card);
            transition: background 0.25s;
        }

        .card-dark:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        /* Badges */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.3px;
        }

        .badge-orange {
            background: #FFF3E8;
            color: #C2570C;
        }

        .badge-green {
            background: #E8F5ED;
            color: #0A3D2C;
        }

        .badge-glow {
            background: rgba(74, 222, 128, 0.18);
            color: #16A34A;
        }

        .badge-white {
            background: rgba(255, 255, 255, 0.2);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.3);
        }

        /* Hero */
        .hero-category {
            background: linear-gradient(135deg, #0A3D2C 0%, #0F4A30 30%, #15803D 65%, #16A34A 100%);
            position: relative;
            overflow: hidden;
            padding: 72px 0 64px;
        }

        .hero-category::before {
            content: 'bb';
            position: absolute;
            font-size: 280px;
            font-weight: 900;
            color: rgba(255, 255, 255, 0.04);
            left: -40px;
            top: -80px;
            letter-spacing: -10px;
            pointer-events: none;
        }

        .hero-category::after {
            content: '';
            position: absolute;
            right: -80px;
            bottom: -120px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(74, 222, 128, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: #C5D6CD;
            flex-wrap: wrap;
            margin-bottom: 24px;
            position: relative;
            z-index: 2;
        }

        .breadcrumb a {
            color: #C5D6CD;
            transition: color 0.2s;
        }

        .breadcrumb a:hover {
            color: #fff;
        }

        .breadcrumb .current {
            color: #4ADE80;
            font-weight: 500;
        }

        .breadcrumb i {
            font-size: 10px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* Grid cards for category page */
        .insight-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .insight-card {
            background: var(--surface);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--line);
            transition: box-shadow 0.3s, transform 0.3s;
            display: flex;
            flex-direction: column;
        }

        .insight-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .insight-card-image {
            position: relative;
            aspect-ratio: 16/10;
            overflow: hidden;
            background: #E2E8E4;
        }

        .insight-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s;
        }

        .insight-card:hover .insight-card-image img {
            transform: scale(1.05);
        }

        .insight-card-image .overlay-gradient {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(10, 61, 44, 0.7) 0%, rgba(10, 61, 44, 0.1) 50%, transparent 100%);
        }

        .insight-card-image .badge-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 3;
        }

        .insight-card-body {
            padding: 20px 22px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .insight-card-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--ink);
            margin: 0 0 8px 0;
            line-height: 1.45;
        }

        .insight-card-body .card-summary {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
            margin: 0 0 16px;
            flex: 1;
        }

        .insight-card-body .data-badges-row {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: auto;
        }

        .data-badge-mini {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            background: #F0F4F1;
            color: #0A3D2C;
        }

        .data-badge-mini.highlight {
            background: #FFF3E8;
            color: #C2570C;
        }

        .data-badge-mini.glow-bg {
            background: rgba(74, 222, 128, 0.14);
            color: #16A34A;
        }

        /* Deep content section */
        .deep-content-section {
            background: #fff;
            padding: 72px 0;
        }

        .deep-content-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: start;
        }

        .deep-content-text h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--brand);
            margin: 0 0 20px;
            line-height: 1.4;
        }

        .deep-content-text p {
            font-size: 15px;
            color: var(--muted);
            line-height: 1.85;
            margin: 0 0 16px;
        }

        .deep-content-side {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .stat-mini-card {
            background: #F7F8F6;
            border-radius: 14px;
            padding: 18px 20px;
            border-left: 4px solid var(--accent);
        }

        .stat-mini-card .stat-label {
            font-size: 13px;
            color: var(--muted);
            margin-bottom: 4px;
        }

        .stat-mini-card .stat-value {
            font-size: 22px;
            font-weight: 700;
            color: var(--brand);
        }

        /* Data highlight band */
        .data-highlight-band {
            background: linear-gradient(135deg, #0A3D2C 0%, #15803D 60%, #16A34A 100%);
            padding: 56px 0;
            position: relative;
            overflow: hidden;
        }

        .data-highlight-band::before {
            content: '';
            position: absolute;
            right: -60px;
            top: -60px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(249, 115, 22, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .data-highlight-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
            z-index: 2;
        }

        .data-highlight-item {
            text-align: center;
            padding: 20px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 20px;
            transition: background 0.3s;
        }

        .data-highlight-item:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        .data-highlight-item .number {
            font-size: 32px;
            font-weight: 800;
            color: #4ADE80;
            display: block;
            line-height: 1.2;
        }

        .data-highlight-item .label {
            font-size: 14px;
            color: #C5D6CD;
            margin-top: 6px;
        }

        /* FAQ */
        .faq-section {
            padding: 72px 0;
            background: var(--bg);
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius-mid);
            border: 1px solid var(--line);
            overflow: hidden;
            transition: box-shadow 0.25s;
        }

        .faq-item:hover {
            box-shadow: var(--shadow-card);
        }

        .faq-item.open {
            border-color: var(--brand-light);
            box-shadow: var(--shadow-card);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 600;
            font-size: 15px;
            color: var(--ink);
            transition: color 0.2s;
            user-select: none;
            gap: 16px;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: inherit;
        }

        .faq-question:hover {
            color: var(--brand);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: #FFF3E8;
            color: #C2570C;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: transform 0.3s, background 0.3s, color 0.3s;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--accent);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 22px;
            color: var(--muted);
            font-size: 14px;
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 20px;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, #0A3D2C 0%, #0F4A30 40%, #15803D 100%);
            padding: 72px 0 80px;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            left: 50%;
            top: 50%;
            transform: translate(-50%, -50%);
            width: 700px;
            height: 700px;
            background: radial-gradient(circle, rgba(74, 222, 128, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        /* Footer */
        .site-footer {
            background: #0A3D2C;
            color: #fff;
            padding: 56px 0 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand-desc {
            font-size: 14px;
            color: #B8C9C0;
            line-height: 1.75;
            margin: 0;
        }

        .footer-heading {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            color: #B8C9C0;
            font-size: 14px;
            transition: color 0.2s;
        }

        .footer-links a:hover {
            color: #4ADE80;
        }

        .footer-subscribe {
            display: flex;
            gap: 8px;
            margin-top: 4px;
        }

        .footer-subscribe input {
            flex: 1;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 12px;
            padding: 10px 16px;
            color: #fff;
            font-size: 14px;
            outline: none;
            transition: border-color 0.25s;
            min-width: 0;
        }

        .footer-subscribe input::placeholder {
            color: #B8C9C0;
        }

        .footer-subscribe input:focus {
            border-color: var(--glow);
        }

        .footer-subscribe .nav-cta {
            padding: 10px 18px;
            border-radius: 12px;
            font-size: 14px;
            background: var(--accent);
            color: #fff;
            border: none;
            cursor: pointer;
            transition: background 0.2s;
            white-space: nowrap;
        }

        .footer-subscribe .nav-cta:hover {
            background: #EA580C;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: space-between;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 13px;
            color: #B8C9C0;
        }

        .footer-bottom a {
            color: #B8C9C0;
            transition: color 0.2s;
        }

        .footer-bottom a:hover {
            color: #4ADE80;
        }

        /* Section titles */
        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--brand);
            margin: 0 0 12px;
            line-height: 1.4;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--muted);
            line-height: 1.75;
            margin: 0 0 32px;
            max-width: 680px;
        }

        .section-title-centered {
            text-align: center;
        }

        .section-title-centered .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .insight-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .deep-content-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .data-highlight-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }

            .nav-links {
                display: none;
            }

            .nav-burger {
                display: flex;
            }

            .hero-category {
                padding: 48px 0 48px;
            }

            .insight-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .data-highlight-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .data-highlight-item .number {
                font-size: 24px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }

            .deep-content-section,
            .faq-section,
            .cta-section,
            .data-highlight-band {
                padding: 48px 0;
            }

            .section-title {
                font-size: 22px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .hero-category {
                padding: 36px 0 36px;
            }

            .nav-inner {
                height: 60px;
            }

            .nav-logo-text {
                font-size: 16px;
            }

            .data-highlight-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }

            .insight-card-body h3 {
                font-size: 16px;
            }

            .section-title {
                font-size: 20px;
            }

            .footer-subscribe {
                flex-direction: column;
                gap: 8px;
            }

            .footer-subscribe input {
                width: 100%;
            }
        }

/* roulang page: category5 */
:root {
            --brand: #0A3D2C;
            --brand-light: #15803D;
            --brand-bright: #16A34A;
            --accent: #F97316;
            --accent-deep: #EA580C;
            --glow: #4ADE80;
            --bg: #F7F8F6;
            --surface: #FFFFFF;
            --ink: #1A2E24;
            --muted: #556B5F;
            --line: #E2E8E4;
            --shadow-card: 0 8px 24px rgba(10, 61, 44, 0.08);
            --shadow-hover: 0 14px 34px rgba(10, 61, 44, 0.15);
            --radius-card: 20px;
            --radius-mid: 14px;
            --radius-btn: 999px;
            --transition: 0.22s ease;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            color: var(--ink);
            background: var(--bg);
            line-height: 1.75;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
            margin: 0;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }
        input,
        textarea {
            font-family: inherit;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
        }

        /* Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 60;
            background: rgba(10, 61, 44, 0.97);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            transition: box-shadow 0.3s;
        }
        .site-header.scrolled {
            box-shadow: 0 6px 24px rgba(10, 61, 44, 0.35);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 20px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .nav-logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--accent), #EA580C);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 16px;
        }
        .nav-logo-text {
            font-weight: 700;
            font-size: 18px;
            color: #fff;
            letter-spacing: 0.5px;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links a {
            color: #C5D6CD;
            font-size: 15px;
            font-weight: 500;
            transition: color 0.2s;
            padding: 6px 2px;
            border-bottom: 2px solid transparent;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: #fff;
            border-bottom-color: var(--accent);
        }
        .nav-cta {
            background: var(--accent);
            color: #fff;
            padding: 8px 20px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 14px;
            transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .nav-cta:hover {
            background: #EA580C;
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(249, 115, 22, 0.4);
        }
        .nav-cta:focus-visible {
            outline: 2px solid var(--glow);
            outline-offset: 2px;
        }
        .nav-burger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            padding: 8px;
        }
        .nav-burger span {
            width: 24px;
            height: 3px;
            background: #fff;
            border-radius: 2px;
            transition: 0.3s;
        }
        .nav-burger.open span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }
        .nav-burger.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-burger.open span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }
        .mobile-menu {
            display: none;
            flex-direction: column;
            background: #0A3D2C;
            padding: 16px 24px 24px;
            gap: 8px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        .mobile-menu a {
            color: #C5D6CD;
            font-size: 16px;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            font-weight: 500;
        }
        .mobile-menu a:hover {
            color: #fff;
        }
        .mobile-menu .nav-cta {
            margin-top: 12px;
            text-align: center;
            justify-content: center;
        }
        @media (max-width: 860px) {
            .nav-links {
                display: none;
            }
            .nav-burger {
                display: flex;
            }
            .mobile-menu.open {
                display: flex;
            }
        }

        /* Buttons */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            padding: 12px 28px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            transition: background 0.25s, transform 0.25s, box-shadow 0.25s;
        }
        .btn-primary:hover {
            background: var(--accent-deep);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(249, 115, 22, 0.38);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(249, 115, 22, 0.28);
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--glow);
            outline-offset: 3px;
        }
        .btn-white {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: #fff;
            color: var(--brand);
            padding: 12px 28px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            transition: background 0.25s, transform 0.25s;
        }
        .btn-white:hover {
            background: #E8F5ED;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
        }

        /* Cards */
        .card {
            background: var(--surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--line);
            transition: box-shadow 0.25s, transform 0.25s;
        }
        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        /* Badge */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .badge-orange {
            background: #FFF3E8;
            color: #C2570C;
        }
        .badge-green {
            background: #E8F5ED;
            color: #0A3D2C;
        }
        .badge-glow {
            background: rgba(74, 222, 128, 0.18);
            color: #15803D;
        }

        /* Page banner */
        .page-banner {
            background: linear-gradient(135deg, #0A3D2C 0%, #15803D 55%, #16A34A 100%);
            padding: 48px 0 40px;
            position: relative;
            overflow: hidden;
        }
        .page-banner::after {
            content: "";
            position: absolute;
            right: -80px;
            top: -80px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            pointer-events: none;
        }
        .page-banner::before {
            content: "bb";
            position: absolute;
            right: 40px;
            bottom: -30px;
            font-size: 160px;
            font-weight: 800;
            color: rgba(255, 255, 255, 0.05);
            pointer-events: none;
            line-height: 1;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 16px;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
            transition: color 0.2s;
        }
        .breadcrumb a:hover {
            color: var(--glow);
        }
        .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.4);
        }
        .breadcrumb .current {
            color: var(--glow);
            font-weight: 500;
        }

        /* Article body */
        .article-body {
            font-size: 15px;
            line-height: 1.9;
            color: var(--ink);
        }
        .article-body h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--brand);
            margin: 32px 0 14px;
            padding-top: 8px;
            scroll-margin-top: 90px;
        }
        .article-body h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--ink);
            margin: 24px 0 10px;
        }
        .article-body p {
            margin-bottom: 18px;
            text-align: justify;
        }
        .article-body blockquote {
            margin: 20px 0;
            padding: 16px 20px;
            border-left: 4px solid var(--accent);
            background: #FFF8F2;
            border-radius: 0 12px 12px 0;
            color: var(--muted);
            font-size: 14px;
            line-height: 1.8;
        }
        .article-body ul {
            margin: 0 0 18px;
            padding-left: 22px;
        }
        .article-body li {
            margin-bottom: 8px;
        }
        .article-body strong {
            color: var(--brand);
            font-weight: 600;
        }

        /* TOC */
        .toc-card {
            background: var(--surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--line);
            padding: 24px;
            position: sticky;
            top: 90px;
        }
        .toc-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--brand);
            margin-bottom: 14px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--line);
        }
        .toc-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .toc-list li {
            margin-bottom: 6px;
        }
        .toc-list a {
            display: block;
            padding: 8px 12px;
            border-radius: 10px;
            font-size: 14px;
            color: var(--muted);
            transition: all 0.2s;
            line-height: 1.5;
        }
        .toc-list a:hover {
            background: #F0F7F2;
            color: var(--brand);
        }
        .toc-list a.active {
            background: #E8F5ED;
            color: var(--brand);
            font-weight: 600;
        }
        .toc-list .toc-num {
            display: inline-block;
            width: 22px;
            height: 22px;
            background: var(--brand);
            color: #fff;
            border-radius: 6px;
            font-size: 11px;
            font-weight: 700;
            text-align: center;
            line-height: 22px;
            margin-right: 8px;
        }

        /* Data card */
        .data-strip {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }
        .data-item {
            background: linear-gradient(135deg, #0A3D2C, #15803D);
            border-radius: var(--radius-mid);
            padding: 16px 14px;
            text-align: center;
            color: #fff;
        }
        .data-item .num {
            font-size: 26px;
            font-weight: 800;
            color: var(--glow);
            line-height: 1.2;
        }
        .data-item .label {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 4px;
        }

        /* FAQ */
        .faq-item {
            background: var(--surface);
            border-radius: var(--radius-mid);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--line);
            margin-bottom: 12px;
            overflow: hidden;
            transition: box-shadow 0.25s;
        }
        .faq-item:hover {
            box-shadow: var(--shadow-hover);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            padding: 18px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--ink);
            text-align: left;
            transition: color 0.2s;
        }
        .faq-question:hover {
            color: var(--brand);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: #FFF3E8;
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            transition: transform 0.3s;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--accent);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 20px;
            color: var(--muted);
            font-size: 14px;
            line-height: 1.85;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        /* Section titles */
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 8px;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--brand);
            line-height: 1.35;
            margin-bottom: 16px;
        }
        @media (max-width: 768px) {
            .section-title {
                font-size: 22px;
            }
        }
        @media (max-width: 520px) {
            .section-title {
                font-size: 20px;
            }
        }

        /* CTA section */
        .cta-section {
            background: linear-gradient(135deg, #0A3D2C 0%, #15803D 60%, #16A34A 100%);
            border-radius: var(--radius-card);
            padding: 48px 40px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::after {
            content: "";
            position: absolute;
            right: -50px;
            top: -50px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
        }

        /* Footer */
        .site-footer {
            background: #0A3D2C;
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 24px;
            margin-top: 72px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }
        .footer-brand-desc {
            font-size: 13px;
            line-height: 1.85;
            color: rgba(255, 255, 255, 0.65);
            margin: 0;
        }
        .footer-heading {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            transition: color 0.2s;
        }
        .footer-links a:hover {
            color: var(--glow);
        }
        .footer-subscribe {
            display: flex;
            gap: 10px;
            margin-top: 4px;
        }
        .footer-subscribe input {
            flex: 1;
            padding: 10px 16px;
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-size: 14px;
            outline: none;
            min-width: 0;
            transition: border-color 0.2s;
        }
        .footer-subscribe input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-subscribe input:focus {
            border-color: var(--glow);
        }
        .footer-subscribe button {
            background: var(--accent);
            color: #fff;
            padding: 10px 20px;
            border-radius: 12px;
            font-size: 14px;
            font-weight: 600;
            transition: background 0.2s;
            white-space: nowrap;
        }
        .footer-subscribe button:hover {
            background: #EA580C;
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.65);
            transition: color 0.2s;
        }
        .footer-bottom a:hover {
            color: var(--glow);
        }

        /* Article image */
        .article-figure {
            margin: 20px 0;
            border-radius: var(--radius-mid);
            overflow: hidden;
            position: relative;
        }
        .article-figure img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
        }
        .article-figure figcaption {
            font-size: 12px;
            color: var(--muted);
            padding: 8px 12px;
            background: #F0F4F1;
            border-radius: 0 0 12px 12px;
        }

        /* Sidebar highlight card */
        .highlight-card {
            background: linear-gradient(135deg, #FFF3E8, #FFE8D4);
            border-radius: var(--radius-mid);
            padding: 18px 20px;
            margin-top: 16px;
            border: 1px solid #FED7B5;
        }
        .highlight-card h4 {
            font-size: 14px;
            font-weight: 700;
            color: #C2570C;
            margin: 0 0 8px;
        }
        .highlight-card p {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.8;
            margin: 0;
        }

        @media (max-width: 860px) {
            .reading-layout {
                grid-template-columns: 1fr !important;
            }
            .toc-card {
                position: static;
                margin-bottom: 24px;
            }
            .page-banner {
                padding: 36px 0 30px;
            }
            .page-banner h1 {
                font-size: 26px;
            }
        }
        @media (max-width: 520px) {
            .data-strip {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .cta-section {
                padding: 32px 24px;
            }
            .footer-subscribe {
                flex-direction: column;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

/* roulang page: category4 */
:root {
            --brand: #0A3D2C;
            --brand-light: #15803D;
            --brand-bright: #16A34A;
            --accent: #F97316;
            --accent-deep: #EA580C;
            --glow: #4ADE80;
            --bg: #F7F8F6;
            --surface: #FFFFFF;
            --ink: #1A2E24;
            --muted: #556B5F;
            --line: #E2E8E4;
            --shadow-card: 0 8px 24px rgba(10, 61, 44, 0.08);
            --shadow-hover: 0 14px 34px rgba(10, 61, 44, 0.15);
            --radius-card: 20px;
            --radius-mid: 14px;
            --radius-btn: 999px;
            --transition: 0.22s ease;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            color: var(--ink);
            background: var(--bg);
            line-height: 1.75;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
            margin: 0;
            padding: 0;
        }

        img {
            max-width: 100%;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 60;
            background: rgba(10, 61, 44, 0.97);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            transition: box-shadow 0.3s;
        }

        .site-header.scrolled {
            box-shadow: 0 6px 24px rgba(10, 61, 44, 0.35);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 20px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .nav-logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--accent), #EA580C);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 16px;
        }

        .nav-logo-text {
            font-weight: 700;
            font-size: 18px;
            color: #fff;
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            color: #C5D6CD;
            font-size: 15px;
            font-weight: 500;
            transition: color 0.2s, border-color 0.2s;
            padding: 6px 2px;
            border-bottom: 2px solid transparent;
            white-space: nowrap;
        }

        .nav-links a:hover,
        .nav-links a.active {
            color: #fff;
            border-bottom-color: var(--accent);
        }

        .nav-cta {
            background: var(--accent);
            color: #fff;
            padding: 8px 20px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 14px;
            transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .nav-cta:hover {
            background: #EA580C;
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(249, 115, 22, 0.4);
        }

        .nav-cta:focus-visible {
            outline: 2px solid var(--glow);
            outline-offset: 2px;
        }

        .nav-burger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            padding: 8px;
        }

        .nav-burger span {
            width: 24px;
            height: 3px;
            background: #fff;
            border-radius: 2px;
            transition: 0.3s;
        }

        .nav-burger.open span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }
        .nav-burger.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-burger.open span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            background: #0A3D2C;
            padding: 16px 24px 24px;
            gap: 8px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

        .mobile-menu a {
            color: #C5D6CD;
            font-size: 16px;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            font-weight: 500;
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: #fff;
        }

        .mobile-menu .nav-cta {
            margin-top: 12px;
            text-align: center;
            justify-content: center;
        }

        .mobile-menu.open {
            display: flex;
        }

        /* Buttons */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            padding: 12px 28px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            transition: background 0.25s, transform 0.25s, box-shadow 0.25s;
            border: none;
            cursor: pointer;
        }
        .btn-primary:hover {
            background: var(--accent-deep);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(249, 115, 22, 0.38);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(249, 115, 22, 0.28);
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--glow);
            outline-offset: 3px;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--brand);
            border: 2px solid var(--brand);
            padding: 10px 26px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            transition: background 0.25s, color 0.25s, border-color 0.25s;
            cursor: pointer;
        }
        .btn-secondary:hover {
            background: rgba(10, 61, 44, 0.08);
            border-color: var(--brand-light);
            color: var(--brand-light);
        }
        .btn-secondary:focus-visible {
            outline: 2px solid var(--glow);
            outline-offset: 3px;
        }

        .btn-white {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: #fff;
            color: var(--brand);
            padding: 12px 28px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            transition: background 0.25s, transform 0.25s;
            cursor: pointer;
        }
        .btn-white:hover {
            background: #E8F5ED;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
        }

        .btn-glow {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--glow);
            color: #0A3D2C;
            padding: 12px 28px;
            border-radius: 999px;
            font-weight: 700;
            font-size: 15px;
            transition: background 0.25s, transform 0.25s;
            cursor: pointer;
        }
        .btn-glow:hover {
            background: #22C55E;
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(74, 222, 128, 0.5);
        }

        /* Cards */
        .card {
            background: var(--surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--line);
            transition: box-shadow 0.25s, transform 0.25s;
        }
        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .card-dark {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-card);
            transition: background 0.25s;
        }
        .card-dark:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        /* Badge */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.3px;
            white-space: nowrap;
        }
        .badge-orange {
            background: #FFF3E8;
            color: #C2570C;
        }
        .badge-green {
            background: #E8F5ED;
            color: #0A3D2C;
        }
        .badge-glow {
            background: #DCFCE7;
            color: #15803D;
        }
        .badge-live {
            background: #FEF2F2;
            color: #DC2626;
            animation: pulse-badge 1.8s ease-in-out infinite;
        }
        .badge-ended {
            background: #F0F2F1;
            color: #6B7280;
        }
        .badge-upcoming {
            background: #EFF6FF;
            color: #2563EB;
        }

        @keyframes pulse-badge {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(220, 38, 38, 0.25);
            }
            50% {
                box-shadow: 0 0 0 6px rgba(220, 38, 38, 0.1);
            }
        }

        /* Timeline */
        .timeline-wrapper {
            position: relative;
            padding-left: 28px;
        }

        .timeline-wrapper::before {
            content: '';
            position: absolute;
            left: 10px;
            top: 8px;
            bottom: 8px;
            width: 3px;
            background: linear-gradient(180deg, var(--brand-light), var(--glow), var(--accent));
            border-radius: 3px;
            opacity: 0.45;
        }

        .timeline-item {
            position: relative;
            margin-bottom: 28px;
            padding-left: 28px;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -22px;
            top: 22px;
            width: 15px;
            height: 15px;
            border-radius: 50%;
            background: var(--surface);
            border: 4px solid var(--brand-light);
            box-shadow: 0 0 0 4px rgba(22, 163, 74, 0.18);
            z-index: 1;
            transition: border-color 0.25s, box-shadow 0.25s;
        }

        .timeline-item.live::before {
            border-color: #DC2626;
            box-shadow: 0 0 0 4px rgba(220, 38, 38, 0.18);
            animation: timeline-live 1.6s ease-in-out infinite;
        }

        @keyframes timeline-live {
            0%,
            100% {
                box-shadow: 0 0 0 4px rgba(220, 38, 38, 0.18);
            }
            50% {
                box-shadow: 0 0 0 8px rgba(220, 38, 38, 0.08);
            }
        }

        .timeline-item.upcoming::before {
            border-color: #93A5B8;
            box-shadow: 0 0 0 4px rgba(147, 165, 184, 0.18);
        }

        /* FAQ */
        .faq-item {
            border: 1px solid var(--line);
            border-radius: var(--radius-mid);
            background: var(--surface);
            margin-bottom: 12px;
            overflow: hidden;
            transition: box-shadow 0.25s;
        }
        .faq-item:hover {
            box-shadow: var(--shadow-card);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            font-weight: 600;
            font-size: 15px;
            color: var(--ink);
            text-align: left;
            cursor: pointer;
            background: none;
            border: none;
            gap: 16px;
            font-family: inherit;
        }
        .faq-question:hover {
            background: rgba(10, 61, 44, 0.03);
        }
        .faq-question:focus-visible {
            outline: 2px solid var(--glow);
            outline-offset: -2px;
        }
        .faq-icon {
            width: 28px;
            height: 28px;
            flex-shrink: 0;
            border-radius: 50%;
            background: #FFF3E8;
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            transition: transform 0.3s, background 0.3s, color 0.3s;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--accent);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 22px;
            color: var(--muted);
            font-size: 14px;
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 20px;
        }

        /* Form */
        .subscribe-input {
            flex: 1;
            min-width: 0;
            padding: 12px 18px;
            border-radius: 12px;
            border: 1px solid var(--line);
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-size: 14px;
            outline: none;
            transition: border-color 0.25s, box-shadow 0.25s;
        }
        .subscribe-input::placeholder {
            color: rgba(255, 255, 255, 0.55);
        }
        .subscribe-input:focus {
            border-color: var(--glow);
            box-shadow: 0 0 0 3px rgba(74, 222, 128, 0.25);
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--muted);
            padding: 16px 0;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--brand);
            font-weight: 500;
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb-sep {
            color: #B0BDB5;
        }
        .breadcrumb-current {
            color: var(--muted);
            font-weight: 500;
        }

        /* Footer */
        .site-footer {
            background: #0A3D2C;
            color: #C5D6CD;
            padding: 56px 0 0;
            margin-top: 72px;
            border-top: 4px solid var(--accent);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-heading {
            color: #fff;
            font-weight: 700;
            font-size: 15px;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .footer-brand-desc {
            color: #A8BDB2;
            font-size: 13px;
            line-height: 1.7;
            margin-top: 8px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            color: #A8BDB2;
            font-size: 13px;
            transition: color 0.2s;
        }
        .footer-links a:hover {
            color: #fff;
        }
        .footer-subscribe {
            display: flex;
            gap: 10px;
            margin-top: 4px;
        }
        .footer-subscribe input {
            flex: 1;
            min-width: 0;
            padding: 10px 16px;
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
            font-size: 13px;
            outline: none;
        }
        .footer-subscribe input::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-subscribe input:focus {
            border-color: var(--glow);
            box-shadow: 0 0 0 3px rgba(74, 222, 128, 0.2);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 20px 0 28px;
            font-size: 12px;
            color: #8AA398;
        }
        .footer-bottom a {
            color: #A8BDB2;
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        /* Section headings */
        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 12px;
            line-height: 1.35;
        }
        .section-desc {
            font-size: 15px;
            color: var(--muted);
            line-height: 1.8;
            max-width: 720px;
        }

        /* Stat badge */
        .stat-num {
            font-size: 28px;
            font-weight: 700;
            color: var(--brand);
            line-height: 1.2;
        }
        .stat-label {
            font-size: 13px;
            color: var(--muted);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .container {
                padding: 0 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .nav-links {
                gap: 18px;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
            .nav-links {
                display: none;
            }
            .nav-burger {
                display: flex;
            }
            .nav-inner {
                height: 60px;
            }
            .mobile-menu.open {
                display: flex;
            }
            .section-title {
                font-size: 22px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .timeline-wrapper {
                padding-left: 20px;
            }
            .timeline-wrapper::before {
                left: 7px;
            }
            .timeline-item {
                padding-left: 20px;
            }
            .timeline-item::before {
                left: -17px;
                width: 13px;
                height: 13px;
            }
            .footer-subscribe {
                flex-direction: column;
            }
        }

        @media (max-width: 520px) {
            body {
                font-size: 14px;
            }
            .section-title {
                font-size: 20px;
            }
            .stat-num {
                font-size: 22px;
            }
            .container {
                padding: 0 12px;
            }
            .timeline-item {
                padding-left: 16px;
                margin-bottom: 20px;
            }
            .timeline-wrapper::before {
                left: 6px;
            }
            .timeline-item::before {
                left: -14px;
                width: 11px;
                height: 11px;
                border-width: 3px;
            }
        }

/* roulang page: category6 */
:root {
            --brand: #0A3D2C;
            --brand-light: #15803D;
            --brand-bright: #16A34A;
            --accent: #F97316;
            --accent-deep: #EA580C;
            --glow: #4ADE80;
            --bg: #F7F8F6;
            --surface: #FFFFFF;
            --ink: #1A2E24;
            --muted: #556B5F;
            --line: #E2E8E4;
            --shadow-card: 0 8px 24px rgba(10, 61, 44, 0.08);
            --shadow-hover: 0 14px 34px rgba(10, 61, 44, 0.15);
            --radius-card: 20px;
            --radius-mid: 14px;
            --radius-btn: 999px;
            --transition: 0.22s ease;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            color: var(--ink);
            background: var(--bg);
            line-height: 1.75;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }

        input,
        textarea {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 60;
            background: rgba(10, 61, 44, 0.97);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            transition: box-shadow 0.3s;
        }

        .site-header.scrolled {
            box-shadow: 0 6px 24px rgba(10, 61, 44, 0.35);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 20px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .nav-logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--accent), #EA580C);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 16px;
        }

        .nav-logo-text {
            font-weight: 700;
            font-size: 18px;
            color: #fff;
            letter-spacing: 0.5px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 24px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            color: #C5D6CD;
            font-size: 15px;
            font-weight: 500;
            transition: color 0.2s, border-bottom-color 0.2s;
            padding: 6px 2px;
            border-bottom: 2px solid transparent;
            white-space: nowrap;
        }

        .nav-links a:hover,
        .nav-links a.active {
            color: #fff;
            border-bottom-color: var(--accent);
        }

        .nav-cta {
            background: var(--accent);
            color: #fff;
            padding: 8px 20px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 14px;
            transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
            white-space: nowrap;
            display: inline-block;
        }

        .nav-cta:hover {
            background: var(--accent-deep);
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(249, 115, 22, 0.4);
        }

        .nav-cta:focus-visible {
            outline: 2px solid var(--glow);
            outline-offset: 2px;
        }

        .nav-burger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            padding: 8px;
            border: none;
        }

        .nav-burger span {
            width: 24px;
            height: 3px;
            background: #fff;
            border-radius: 2px;
            transition: 0.3s;
            display: block;
        }

        .nav-burger.open span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }
        .nav-burger.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-burger.open span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            background: #0A3D2C;
            padding: 16px 24px 24px;
            gap: 8px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

        .mobile-menu a {
            color: #C5D6CD;
            font-size: 16px;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            font-weight: 500;
        }

        .mobile-menu a:hover {
            color: #fff;
        }

        .mobile-menu .nav-cta {
            margin-top: 12px;
            text-align: center;
        }

        .mobile-menu.open {
            display: flex;
        }

        @media (max-width: 900px) {
            .nav-links {
                display: none;
            }
            .nav-burger {
                display: flex;
            }
            .nav-cta-desktop {
                display: none;
            }
        }

        @media (min-width: 901px) {
            .mobile-menu {
                display: none !important;
            }
            .nav-burger {
                display: none;
            }
        }

        /* Buttons */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            padding: 12px 28px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            transition: background 0.25s, transform 0.25s, box-shadow 0.25s;
            border: none;
        }

        .btn-primary:hover {
            background: var(--accent-deep);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(249, 115, 22, 0.38);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(249, 115, 22, 0.28);
        }

        .btn-primary:focus-visible {
            outline: 2px solid var(--glow);
            outline-offset: 3px;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--brand);
            border: 2px solid var(--brand);
            padding: 10px 26px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            transition: background 0.25s, color 0.25s, border-color 0.25s;
        }

        .btn-secondary:hover {
            background: rgba(10, 61, 44, 0.08);
            border-color: var(--brand-light);
            color: var(--brand-light);
        }

        .btn-secondary:focus-visible {
            outline: 2px solid var(--glow);
            outline-offset: 3px;
        }

        .btn-glow {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--glow);
            color: #0A3D2C;
            padding: 12px 28px;
            border-radius: 999px;
            font-weight: 700;
            font-size: 15px;
            transition: background 0.25s, transform 0.25s;
            border: none;
        }

        .btn-glow:hover {
            background: #22C55E;
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(74, 222, 128, 0.5);
        }

        /* Cards */
        .card {
            background: var(--surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--line);
            transition: box-shadow 0.25s, transform 0.25s;
        }

        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .card-dark {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-card);
            transition: background 0.25s;
        }

        .card-dark:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        /* Badge */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.3px;
            white-space: nowrap;
        }

        .badge-orange {
            background: #FFF3E8;
            color: #C2570C;
        }

        .badge-green {
            background: #E8F5ED;
            color: #0A3D2C;
        }

        .badge-glow {
            background: #DCFCE7;
            color: #0A3D2C;
            border: 1px solid #4ADE80;
        }

        .badge-white {
            background: rgba(255, 255, 255, 0.18);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.3);
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--muted);
            padding: 20px 0 8px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--brand-light);
            transition: color 0.2s;
        }

        .breadcrumb a:hover {
            color: var(--accent);
        }

        .breadcrumb .sep {
            color: #B0BFB6;
        }

        .breadcrumb .current {
            color: var(--ink);
            font-weight: 500;
        }

        /* Hero banner */
        .hero-banner {
            position: relative;
            background: linear-gradient(135deg, #0A3D2C 0%, #15803D 55%, #16A34A 100%);
            border-radius: var(--radius-card);
            overflow: hidden;
            margin: 16px 0 40px;
            padding: 48px 48px;
            color: #fff;
            box-shadow: 0 16px 40px rgba(10, 61, 44, 0.25);
        }

        .hero-banner::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(74, 222, 128, 0.18), transparent 65%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-banner::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -5%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(249, 115, 22, 0.15), transparent 65%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-banner-content {
            position: relative;
            z-index: 2;
            max-width: 780px;
        }

        .hero-banner h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.3;
            margin: 0 0 16px;
            letter-spacing: 0.5px;
        }

        .hero-banner p {
            font-size: 16px;
            line-height: 1.8;
            color: #DCE9E2;
            margin: 0 0 24px;
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 20px;
        }

        .hero-stat {
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 999px;
            padding: 8px 18px;
            font-size: 13px;
            font-weight: 500;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .hero-stat strong {
            font-size: 17px;
            font-weight: 700;
            color: var(--glow);
        }

        @media (max-width: 768px) {
            .hero-banner {
                padding: 32px 24px;
                margin: 12px 0 28px;
                border-radius: 14px;
            }
            .hero-banner h1 {
                font-size: 26px;
            }
            .hero-banner p {
                font-size: 15px;
            }
            .hero-stat {
                font-size: 12px;
                padding: 6px 14px;
            }
        }

        /* Ranking list */
        .ranking-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .ranking-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-mid);
            padding: 16px 20px;
            transition: box-shadow 0.25s, transform 0.25s, border-color 0.25s;
            cursor: default;
        }

        .ranking-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-1px);
            border-color: #C5D4CC;
        }

        .ranking-number {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            flex-shrink: 0;
        }

        .ranking-number.top1 {
            background: linear-gradient(135deg, #F97316, #EA580C);
            color: #fff;
        }
        .ranking-number.top2 {
            background: linear-gradient(135deg, #15803D, #0A3D2C);
            color: #fff;
        }
        .ranking-number.top3 {
            background: linear-gradient(135deg, #4ADE80, #22C55E);
            color: #0A3D2C;
        }
        .ranking-number.normal {
            background: #E8F5ED;
            color: var(--brand);
        }

        .ranking-info {
            flex: 1;
            min-width: 0;
        }

        .ranking-title {
            font-weight: 600;
            font-size: 16px;
            color: var(--ink);
            margin-bottom: 4px;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .ranking-meta {
            font-size: 13px;
            color: var(--muted);
        }

        .ranking-value {
            text-align: right;
            flex-shrink: 0;
        }

        .ranking-value .number {
            font-size: 20px;
            font-weight: 700;
            color: var(--brand);
            display: block;
            line-height: 1.2;
        }

        .ranking-value .label {
            font-size: 12px;
            color: var(--muted);
        }

        .ranking-trend {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 12px;
            font-weight: 600;
            padding: 2px 10px;
            border-radius: 999px;
        }

        .ranking-trend.up {
            background: #DCFCE7;
            color: #15803D;
        }
        .ranking-trend.down {
            background: #FEF3F2;
            color: #DC2626;
        }
        .ranking-trend.flat {
            background: #F1F5F4;
            color: #64748B;
        }

        @media (max-width: 640px) {
            .ranking-item {
                flex-wrap: wrap;
                gap: 10px;
                padding: 14px 16px;
            }
            .ranking-number {
                width: 36px;
                height: 36px;
                font-size: 15px;
                border-radius: 10px;
            }
            .ranking-value {
                text-align: left;
                width: 100%;
                padding-left: 52px;
            }
            .ranking-value .number {
                font-size: 18px;
                display: inline;
            }
        }

        /* Analysis cards */
        .analysis-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .analysis-card {
            background: var(--surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--line);
            overflow: hidden;
            transition: box-shadow 0.25s, transform 0.25s;
            display: flex;
            flex-direction: column;
        }

        .analysis-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .analysis-card-media {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: #E8F5ED;
        }

        .analysis-card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }

        .analysis-card:hover .analysis-card-media img {
            transform: scale(1.03);
        }

        .analysis-card-media .overlay-tag {
            position: absolute;
            bottom: 12px;
            left: 12px;
            background: rgba(10, 61, 44, 0.85);
            color: #fff;
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
            backdrop-filter: blur(4px);
        }

        .analysis-card-body {
            padding: 20px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .analysis-card-body h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--ink);
            margin: 0 0 10px;
            line-height: 1.4;
        }

        .analysis-card-body p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--muted);
            margin: 0 0 16px;
            flex: 1;
        }

        .analysis-card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 16px;
        }

        .analysis-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 14px;
            border-top: 1px solid var(--line);
        }

        .analysis-card-link {
            color: var(--accent);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color 0.2s;
        }

        .analysis-card-link:hover {
            color: var(--accent-deep);
        }

        @media (max-width: 768px) {
            .analysis-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .analysis-card-body {
                padding: 16px 18px 20px;
            }
        }

        /* Section titles */
        .section-title {
            margin-bottom: 28px;
        }

        .section-title h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--ink);
            margin: 0 0 8px;
            line-height: 1.35;
        }

        .section-title p {
            font-size: 15px;
            color: var(--muted);
            margin: 0;
            line-height: 1.75;
        }

        @media (max-width: 768px) {
            .section-title h2 {
                font-size: 22px;
            }
            .section-title p {
                font-size: 14px;
            }
        }

        /* Section spacing */
        .page-section {
            padding: 48px 0;
        }

        @media (max-width: 768px) {
            .page-section {
                padding: 32px 0;
            }
        }

        /* Dark CTA section */
        .cta-section {
            background: linear-gradient(135deg, #0A3D2C 0%, #15803D 55%, #16A34A 100%);
            border-radius: var(--radius-card);
            padding: 48px 40px;
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: 0 16px 40px rgba(10, 61, 44, 0.25);
        }

        .cta-section h2 {
            font-size: 28px;
            font-weight: 700;
            margin: 0 0 12px;
            color: #fff;
        }

        .cta-section p {
            font-size: 16px;
            color: #DCE9E2;
            margin: 0 0 28px;
            line-height: 1.8;
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 32px 20px;
                border-radius: 14px;
            }
            .cta-section h2 {
                font-size: 22px;
            }
            .cta-section p {
                font-size: 14px;
            }
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-mid);
            overflow: hidden;
            transition: box-shadow 0.25s, border-color 0.25s;
        }

        .faq-item:hover {
            box-shadow: var(--shadow-card);
            border-color: #C5D4CC;
        }

        .faq-question {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 18px 24px;
            cursor: pointer;
            font-weight: 600;
            font-size: 15px;
            color: var(--ink);
            transition: color 0.2s;
            text-align: left;
            width: 100%;
            border: none;
            background: none;
        }

        .faq-question:hover {
            color: var(--brand-light);
        }

        .faq-icon {
            width: 24px;
            height: 24px;
            border-radius: 8px;
            background: #FFF3E8;
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            flex-shrink: 0;
            transition: transform 0.3s, background 0.3s;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--accent);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
            color: var(--muted);
            font-size: 14px;
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* Footer */
        .site-footer {
            background: #0A3D2C;
            color: #C5D6CD;
            padding: 56px 0 20px;
            margin-top: 56px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-heading {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-links a {
            color: #C5D6CD;
            font-size: 14px;
            transition: color 0.2s;
        }

        .footer-links a:hover {
            color: var(--glow);
        }

        .footer-brand-desc {
            font-size: 13px;
            line-height: 1.8;
            color: #B0BFB6;
            margin: 0;
        }

        .footer-subscribe {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .footer-subscribe input {
            flex: 1;
            min-width: 160px;
            padding: 10px 16px;
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-size: 14px;
            outline: none;
            transition: border-color 0.2s;
        }

        .footer-subscribe input::placeholder {
            color: #8AA399;
        }

        .footer-subscribe input:focus {
            border-color: var(--glow);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: #8AA399;
        }

        .footer-bottom a {
            color: #C5D6CD;
            transition: color 0.2s;
        }

        .footer-bottom a:hover {
            color: var(--glow);
        }

        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 600px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
        }

        /* Deep content area */
        .deep-content {
            background: var(--surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--line);
            padding: 32px 36px;
        }

        .deep-content h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--ink);
            margin: 0 0 16px;
            line-height: 1.45;
        }

        .deep-content p {
            font-size: 15px;
            line-height: 1.85;
            color: var(--muted);
            margin: 0 0 16px;
        }

        .deep-content p:last-child {
            margin-bottom: 0;
        }

        @media (max-width: 768px) {
            .deep-content {
                padding: 22px 18px;
                border-radius: 14px;
            }
            .deep-content h3 {
                font-size: 18px;
            }
            .deep-content p {
                font-size: 14px;
            }
        }

        /* Scrollbar styling for nav on mobile */
        @media (max-width: 900px) {
            .mobile-menu {
                max-height: calc(100vh - 68px);
                overflow-y: auto;
                -webkit-overflow-scrolling: touch;
            }
        }

        /* Focus visible general */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--glow);
            outline-offset: 2px;
        }

        /* Selection */
        ::selection {
            background: var(--glow);
            color: #0A3D2C;
        }