/* roulang page: index */
:root {
    --primary: #0C6B4E;
    --primary-dark: #084D38;
    --primary-light: #E4F1EC;
    --accent: #C9A44C;
    --accent-hover: #B08F3C;
    --bg-light: #F7F5EF;
    --bg-dark: #0B2E23;
    --text-main: #1F2A26;
    --text-secondary: #4A5A54;
    --text-muted: #8A938E;
    --border: #E2DDD2;
    --card-bg: #FFFFFF;
    --text-white: #F9FAF8;
    --radius-card: 12px;
    --radius-btn: 8px;
    --radius-container: 16px;
    --radius-pill: 999px;
    --shadow-default: 0 8px 30px rgba(11, 46, 35, .08);
    --shadow-hover: 0 12px 36px rgba(11, 46, 35, .14);
    --transition: .25s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: -apple-system, "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif; line-height: 1.75; color: var(--text-main); background: var(--bg-light); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color .25s ease; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea { font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 40px; }
.row { max-width: 1200px; margin: 0 auto; }

/* 按钮体系 */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-weight: 600; font-size: 16px; line-height: 1; padding: 0 28px; height: 48px; border-radius: var(--radius-btn); transition: all .25s ease; border: 1px solid transparent; }
.btn-lg { height: 52px; padding: 0 32px; font-size: 17px; }
.btn-sm { height: 40px; padding: 0 22px; font-size: 15px; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 6px 16px rgba(11, 46, 35, .2); }
.btn-accent { background: var(--accent); color: #1F2A26; }
.btn-accent:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 6px 16px rgba(201, 164, 76, .3); }
.btn-outline-primary { background: transparent; border-color: var(--primary); color: var(--primary); }
.btn-outline-primary:hover { background: rgba(12, 107, 78, .1); }
.btn-outline-light { background: transparent; border-color: rgba(255,255,255,.7); color: var(--text-white); }
.btn-outline-light:hover { background: rgba(255,255,255,.12); border-color: #fff; }
.btn:focus-visible, a:focus-visible, button:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; box-shadow: 0 0 0 4px rgba(12, 107, 78, .2); }

/* 导航 */
.site-header { position: fixed; top: 0; left: 0; right: 0; height: 64px; z-index: 1000; background: rgba(11, 46, 35, .45); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid rgba(255,255,255,.15); box-shadow: 0 4px 20px rgba(11, 46, 35, .06); transition: background .3s ease, box-shadow .3s ease, border-color .3s ease; }
.site-header.scrolled { background: rgba(247,245,239,.96); border-bottom-color: var(--border); box-shadow: 0 6px 24px rgba(11, 46, 35, .08); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.header-left { display: flex; align-items: center; }
.brand-logo { display: flex; align-items: center; gap: 12px; }
.logo-badge { width: 36px; height: 36px; border-radius: 50%; border: 2px solid var(--accent); background: rgba(255,255,255,.15); display: flex; align-items: center; justify-content: center; color: var(--accent); font-size: 15px; flex-shrink: 0; transition: all .3s ease; }
.site-header.scrolled .logo-badge { background: var(--primary-light); border-color: var(--primary); color: var(--primary); }
.logo-text { font-size: 17px; font-weight: 700; color: #fff; letter-spacing: .3px; white-space: nowrap; transition: color .3s ease; }
.site-header.scrolled .logo-text { color: var(--text-main); }
.header-nav { display: flex; align-items: center; gap: 32px; }
.nav-link { font-size: 15px; font-weight: 600; color: rgba(255,255,255,.85); position: relative; padding: 6px 2px; transition: color .25s ease; }
.nav-link::after { content: ''; position: absolute; bottom: -2px; left: 0; width: 100%; height: 2px; background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform .25s ease; }
.nav-link:hover { color: #fff; }
.nav-link:hover::after, .nav-link.active::after { transform: scaleX(1); }
.nav-link.active { color: var(--accent); }
.site-header.scrolled .nav-link { color: var(--text-secondary); }
.site-header.scrolled .nav-link:hover { color: var(--primary); }
.site-header.scrolled .nav-link.active { color: var(--primary); }
.site-header.scrolled .nav-link.active::after { background: var(--primary); }
.header-actions { display: flex; align-items: center; gap: 14px; }
.header-search { width: 38px; height: 38px; border-radius: var(--radius-btn); background: rgba(255,255,255,.14); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 15px; transition: all .25s ease; }
.site-header.scrolled .header-search { background: var(--primary-light); color: var(--primary); }
.header-search:hover { background: rgba(255,255,255,.25); }
.site-header.scrolled .header-search:hover { background: var(--primary-light); color: var(--primary-dark); }
.hamburger { display: none; width: 40px; height: 40px; flex-direction: column; align-items: center; justify-content: center; gap: 5px; background: rgba(255,255,255,.12); border-radius: var(--radius-btn); }
.site-header.scrolled .hamburger { background: var(--primary-light); }
.hamburger span { display: block; width: 18px; height: 2px; background: #fff; border-radius: 2px; transition: all .3s ease; }
.site-header.scrolled .hamburger span { background: var(--text-main); }
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.mobile-menu { display: none; position: fixed; top: 64px; left: 0; right: 0; background: rgba(247,245,239,.98); backdrop-filter: blur(20px); border-bottom: 1px solid var(--border); box-shadow: 0 12px 32px rgba(11, 46, 35, .12); padding: 20px 24px 28px; z-index: 999; transform: translateY(-16px); opacity: 0; visibility: hidden; transition: all .3s ease; }
.mobile-menu.open { transform: translateY(0); opacity: 1; visibility: visible; }
.mobile-menu .mobile-nav-link { display: block; font-size: 16px; font-weight: 600; color: var(--text-main); padding: 14px 8px; border-bottom: 1px solid var(--border); }
.mobile-menu .mobile-nav-link.active { color: var(--primary); }
.mobile-menu .mobile-cta { width: 100%; margin-top: 20px; }

/* Hero */
.hero { position: relative; min-height: 720px; background: var(--bg-dark); display: flex; align-items: center; padding: 120px 0 80px; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; background-size: cover; background-position: center; z-index: 0; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(0,0,0,.65) 0%, rgba(0,0,0,.35) 50%, rgba(0,0,0,.15) 100%); z-index: 1; }
.hero-inner { position: relative; z-index: 2; display: flex; align-items: center; gap: 60px; }
.hero-text { flex: 0 0 56%; }
.hero-text h1 { font-size: 52px; font-weight: 800; color: var(--text-white); line-height: 1.2; margin-bottom: 20px; letter-spacing: .5px; }
.hero-subtitle { font-size: 19px; color: rgba(255,255,255,.82); margin-bottom: 32px; line-height: 1.7; }
.hero-cta-group { display: flex; gap: 16px; margin-bottom: 40px; flex-wrap: wrap; }
.hero-trust { display: flex; gap: 28px; flex-wrap: wrap; }
.hero-trust span { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; color: rgba(255,255,255,.68); }
.hero-trust i { color: var(--accent); font-size: 16px; }
.hero-visual { flex: 0 0 44%; position: relative; }
.hero-img { width: 100%; border-radius: var(--radius-container); box-shadow: 0 20px 60px rgba(0, 0, 0, .35); }
.hero-float-card { position: absolute; bottom: -24px; left: -20px; background: var(--card-bg); border-radius: var(--radius-card); padding: 16px 20px; display: flex; align-items: center; gap: 14px; box-shadow: var(--shadow-hover); }
.float-icon { width: 44px; height: 44px; border-radius: var(--radius-btn); background: var(--primary-light); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 20px; }
.float-title { font-size: 13px; color: var(--text-muted); }
.float-num { font-size: 20px; font-weight: 700; color: var(--text-main); }

/* 板块通用 */
.section-head { text-align: center; max-width: 640px; margin: 0 auto 56px; }
.section-head h2 { font-size: 34px; font-weight: 700; line-height: 1.3; margin-bottom: 12px; color: var(--text-main); }
.section-head p { font-size: 16px; color: var(--text-secondary); line-height: 1.7; }

/* 卖点三连 */
.features { padding: 96px 0; background: #fff; }
.feature-card { padding: 32px; border: 1px solid var(--border); border-radius: var(--radius-card); box-shadow: var(--shadow-default); background: var(--card-bg); height: 100%; display: flex; flex-direction: column; gap: 12px; transition: transform .25s ease, box-shadow .25s ease; }
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.feature-icon { width: 56px; height: 56px; border-radius: 14px; background: var(--primary-light); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 24px; margin-bottom: 8px; }
.feature-card h3 { font-size: 20px; font-weight: 700; color: var(--text-main); }
.feature-card p { font-size: 15px; line-height: 1.7; color: var(--text-secondary); flex: 1; }
.feature-link { font-size: 15px; font-weight: 600; color: var(--primary); display: inline-flex; align-items: center; gap: 6px; }
.feature-link i { transition: transform .25s ease; }
.feature-link:hover { color: var(--primary-dark); }
.feature-link:hover i { transform: translateX(4px); }

/* 场景演示 */
.scenario { padding: 96px 0; }
.scenario-1 { background: #fff; }
.scenario-2 { background: rgba(12, 107, 78, .05); }
.scenario-text h2 { font-size: 30px; font-weight: 700; color: var(--text-main); margin-bottom: 16px; line-height: 1.3; }
.scenario-text p { font-size: 16px; color: var(--text-secondary); line-height: 1.85; margin-bottom: 16px; }
.scenario-list { margin: 24px 0; display: flex; flex-direction: column; gap: 12px; }
.scenario-list li { display: flex; align-items: center; gap: 10px; font-size: 15px; color: var(--text-main); }
.scenario-list i { color: var(--primary); font-size: 17px; flex-shrink: 0; }
.text-link { font-size: 15px; font-weight: 700; color: var(--primary); display: inline-flex; align-items: center; gap: 6px; }
.text-link i { transition: transform .25s ease; }
.text-link:hover { color: var(--primary-dark); }
.text-link:hover i { transform: translateX(4px); }
.scenario-media { position: relative; }
.scenario-media img { width: 100%; border-radius: var(--radius-card); box-shadow: var(--shadow-default); }
.media-caption { font-size: 13px; color: var(--text-muted); text-align: center; margin-top: 10px; }

/* 社会认同 */
.social-proof { padding: 96px 0; background: var(--bg-light); }
.stats-row { margin-bottom: 56px; }
.stat-item { text-align: center; padding: 24px 16px; }
.stat-num { font-size: 42px; font-weight: 800; color: var(--primary); line-height: 1.1; }
.stat-num span { font-size: 24px; font-weight: 700; }
.stat-label { font-size: 14px; color: var(--text-secondary); margin-top: 6px; }
.review-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius-card); padding: 24px; box-shadow: var(--shadow-default); height: 100%; display: flex; flex-direction: column; transition: transform .25s ease, box-shadow .25s ease; }
.review-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.review-stars { color: var(--accent); font-size: 16px; letter-spacing: 2px; margin-bottom: 12px; }
.review-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; flex: 1; }
.review-user { display: flex; align-items: center; gap: 12px; margin-top: 16px; }
.review-avatar { width: 32px; height: 32px; border-radius: 50%; background: var(--primary-light); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 700; }
.review-name { font-size: 13px; font-weight: 600; color: var(--text-main); }

/* 资讯区 */
.news-section { padding: 96px 0; background: #fff; }
.news-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 40px; }
.news-head h2 { font-size: 34px; font-weight: 700; color: var(--text-main); }
.news-more { font-size: 14px; font-weight: 600; color: var(--primary); display: inline-flex; align-items: center; gap: 6px; }
.news-more:hover { color: var(--primary-dark); }
.news-more i { transition: transform .25s ease; }
.news-more:hover i { transform: translateX(4px); }
.news-list { display: flex; flex-direction: column; gap: 20px; }
.news-card { display: flex; background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius-card); overflow: hidden; transition: transform .25s ease, box-shadow .25s ease; }
.news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.news-thumb { width: 200px; flex-shrink: 0; }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; }
.news-body { padding: 20px 24px; flex: 1; display: flex; flex-direction: column; }
.news-title { font-size: 16px; font-weight: 700; color: var(--text-main); line-height: 1.4; margin-bottom: 8px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.news-title a:hover { color: var(--primary); }
.news-excerpt { font-size: 14px; color: var(--text-secondary); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 12px; }
.news-meta { display: flex; align-items: center; gap: 14px; margin-top: auto; }
.news-badge { display: inline-block; background: var(--primary-light); color: var(--primary-dark); font-size: 13px; font-weight: 600; padding: 4px 12px; border-radius: var(--radius-pill); }
.news-time { font-size: 13px; color: var(--text-muted); }
.news-empty { text-align: center; padding: 60px 20px; color: var(--text-muted); font-size: 14px; background: rgba(12, 107, 78, .04); border-radius: var(--radius-card); border: 1px dashed var(--border); }

/* FAQ */
.faq-section { padding: 96px 0; background: var(--bg-light); }
.faq-list { max-width: 800px; margin: 0 auto 32px; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-item:first-child { border-top: 1px solid var(--border); }
.faq-question { width: 100%; display: flex; align-items: center; gap: 14px; padding: 22px 8px; text-align: left; font-size: 16px; font-weight: 600; color: var(--text-main); transition: color .25s ease; }
.faq-question:hover { color: var(--primary); }
.faq-q-icon { width: 26px; height: 26px; border-radius: 50%; background: var(--primary-light); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 13px; flex-shrink: 0; }
.faq-arrow { margin-left: auto; font-size: 14px; color: var(--text-muted); transition: transform .3s ease; flex-shrink: 0; }
.faq-item.active .faq-arrow { transform: rotate(180deg); color: var(--primary); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .4s ease; }
.faq-answer p { padding: 0 8px 24px 48px; font-size: 15px; color: var(--text-secondary); line-height: 1.75; }
.faq-item.active .faq-answer { max-height: 400px; }
.faq-footer { text-align: center; margin-top: 40px; }
.faq-footer p { font-size: 15px; color: var(--text-secondary); margin-bottom: 16px; }

/* CTA */
.cta-section { padding: 96px 0; background: #fff; }
.cta-box { position: relative; background: linear-gradient(135deg, #0B2E23 0%, #0D3D2F 100%); border-radius: var(--radius-container); padding: 80px 48px; text-align: center; overflow: hidden; }
.cta-circle { position: absolute; width: 200px; height: 200px; border-radius: 50%; border: 3px solid rgba(201, 164, 76, .2); top: -60px; right: -40px; }
.cta-circle::after { content: ''; position: absolute; width: 120px; height: 120px; border-radius: 50%; border: 2px solid rgba(201, 164, 76, .15); bottom: -40px; left: -30px; }
.cta-box h2 { font-size: 32px; font-weight: 700; color: var(--text-white); margin-bottom: 12px; position: relative; z-index: 1; }
.cta-box p { font-size: 15px; color: rgba(255,255,255,.7); margin-bottom: 28px; position: relative; z-index: 1; }

/* 页脚 */
.site-footer { background: var(--bg-dark); padding: 64px 0 24px; color: rgba(255,255,255,.75); }
.site-footer .row { margin-bottom: 40px; }
.footer-brand .footer-logo { font-size: 22px; font-weight: 800; color: #fff; margin-bottom: 12px; display: flex; align-items: center; gap: 10px; }
.footer-brand .footer-logo i { color: var(--accent); }
.footer-brand p { font-size: 14px; color: rgba(255,255,255,.55); line-height: 1.75; max-width: 260px; }
.site-footer h4 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 16px; }
.site-footer ul li { margin-bottom: 10px; }
.site-footer ul li a { font-size: 14px; color: rgba(255,255,255,.6); transition: color .25s ease; }
.site-footer ul li a:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); padding-top: 20px; text-align: center; }
.footer-bottom p { font-size: 14px; color: rgba(255,255,255,.45); }

/* 底部转化条 */
.fixed-cta { position: fixed; bottom: 0; left: 0; right: 0; height: 60px; background: rgba(11, 46, 35, .92); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-top: 1px solid rgba(255,255,255,.1); display: flex; align-items: center; justify-content: space-between; padding: 0 20px; z-index: 998; opacity: 0; visibility: hidden; transform: translateY(100%); transition: all .3s ease; }
.fixed-cta.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.fixed-cta-left { display: flex; align-items: center; gap: 10px; color: #fff; font-size: 15px; font-weight: 600; }
.fixed-cta-left i { color: var(--accent); font-size: 18px; }
.fixed-cta-btn { height: 40px; padding: 0 24px; background: var(--accent); color: #1F2A26; font-size: 15px; font-weight: 700; border-radius: var(--radius-btn); display: inline-flex; align-items: center; justify-content: center; transition: all .25s ease; }
.fixed-cta-btn:hover { background: var(--accent-hover); transform: translateY(-2px); }

/* 响应式 */
@media (max-width: 1024px) {
    .hero-text h1 { font-size: 42px; }
    .hero-inner { gap: 40px; }
    .hero-text { flex: 0 0 52%; }
    .hero-visual { flex: 0 0 48%; }
    .header-nav { gap: 20px; }
    .news-thumb { width: 160px; }
}
@media (max-width: 768px) {
    .container { padding: 0 24px; }
    .header-nav, .header-actions .header-search { display: none; }
    .hamburger { display: flex; }
    .mobile-menu { display: block; }
    .hero { min-height: auto; padding: 100px 0 64px; }
    .hero-inner { flex-direction: column; gap: 40px; }
    .hero-text { flex: 0 0 100%; text-align: center; }
    .hero-subtitle { font-size: 17px; }
    .hero-cta-group { justify-content: center; }
    .hero-trust { justify-content: center; }
    .hero-visual { flex: 0 0 100%; max-width: 480px; margin: 0 auto; }
    .hero-float-card { left: 8px; bottom: -16px; }
    .features, .scenario, .social-proof, .news-section, .faq-section, .cta-section { padding: 64px 0; }
    .section-head h2 { font-size: 28px; }
    .scenario-text h2 { font-size: 26px; }
    .stat-num { font-size: 32px; }
    .news-head h2 { font-size: 28px; }
    .news-card { flex-direction: column; }
    .news-thumb { width: 100%; height: 160px; }
    .news-thumb img { height: 100%; }
    .cta-box { padding: 48px 24px; }
    .cta-box h2 { font-size: 26px; }
    .site-footer .row { margin-bottom: 24px; }
    .site-footer h4 { margin-top: 20px; }
    .footer-bottom { margin-top: 16px; }
}
@media (max-width: 640px) {
    .container { padding: 0 20px; }
    body { padding-bottom: 60px; }
    .fixed-cta { opacity: 1; visibility: visible; transform: translateY(0); }
    .hero-text h1 { font-size: 34px; }
    .hero-subtitle { font-size: 16px; }
    .hero-cta-group .btn { width: 100%; }
    .section-head h2 { font-size: 24px; }
    .section-head p { font-size: 14px; }
    .feature-card { padding: 24px; }
    .cta-box h2 { font-size: 24px; }
    .cta-box p { font-size: 14px; }
    .review-card { padding: 20px; }
}

/* FAQ 默认第一项展开 */
.faq-item:first-child .faq-answer { max-height: 400px; }
.faq-item:first-child .faq-arrow { transform: rotate(180deg); color: var(--primary); }

/* roulang page: category1 */
:root {
    --primary: #0C6B4E;
    --primary-dark: #084D38;
    --primary-light: #E4F1EC;
    --accent: #C9A44C;
    --accent-hover: #B08F3C;
    --bg-light: #F7F5EF;
    --bg-dark: #0B2E23;
    --text-main: #1F2A26;
    --text-secondary: #4A5A54;
    --text-muted: #8A938E;
    --border: #E2DDD2;
    --card-bg: #FFFFFF;
    --text-white: #F9FAF8;
    --radius-card: 12px;
    --radius-btn: 8px;
    --radius-lg: 16px;
    --shadow-default: 0 8px 30px rgba(11,46,35,.08);
    --shadow-hover: 0 14px 40px rgba(11,46,35,.14);
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
    font-size: 16px;
    line-height: 1.75;
    color: var(--text-main);
    background: var(--bg-light);
    -webkit-font-smoothing: antialiased;
    padding-bottom: 60px;
}

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

a {
    color: inherit;
    text-decoration: none;
    transition: color .25s ease;
}

a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 3px;
    box-shadow: 0 0 0 6px rgba(12,107,78,.18);
}

ul,
ol {
    list-style: none;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 52px;
    padding: 0 32px;
    border-radius: var(--radius-btn);
    font-size: 16px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all .25s ease;
    line-height: 1;
    white-space: nowrap;
}

.btn i {
    font-size: 14px;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
}

.btn-primary:hover {
    background: var(--primary-dark);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(11,46,35,.22);
}

.btn-accent {
    background: var(--accent);
    color: var(--text-main);
}

.btn-accent:hover {
    background: var(--accent-hover);
    color: var(--text-main);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(176,143,60,.28);
}

.btn-outline-light {
    background: transparent;
    border: 1.5px solid rgba(255,255,255,.75);
    color: #fff;
}

.btn-outline-light:hover {
    background: rgba(255,255,255,.12);
    color: #fff;
    border-color: #fff;
}

.btn-outline {
    background: transparent;
    border: 1.5px solid var(--primary);
    color: var(--primary);
}

.btn-outline:hover {
    background: rgba(12,107,78,.08);
    color: var(--primary-dark);
    border-color: var(--primary-dark);
}

/* ========== Header ========== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 64px;
    z-index: 1000;
    background: rgba(247,245,239,.5);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255,255,255,.3);
    box-shadow: 0 4px 20px rgba(11,46,35,.04);
    transition: all .3s ease;
}

.site-header.scrolled {
    background: rgba(247,245,239,.96);
    border-bottom: 1px solid rgba(226,221,210,.8);
    box-shadow: 0 6px 24px rgba(11,46,35,.08);
}

.header-inner {
    max-width: 1200px;
    height: 64px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

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

.brand-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 2px solid var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 16px;
    background: #fff;
}

.brand-text {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: .3px;
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    justify-content: center;
}

.nav-link {
    display: inline-block;
    padding: 10px 18px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-secondary);
    border-radius: 999px;
    transition: all .25s ease;
}

.nav-link:hover {
    color: var(--primary);
    background: rgba(12,107,78,.06);
}

.nav-link.active {
    color: var(--primary);
    background: var(--primary-light);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.search-btn {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    transition: all .25s ease;
}

.search-btn:hover {
    background: var(--primary);
    color: #fff;
}

.header-actions .btn {
    height: 42px;
    padding: 0 24px;
    font-size: 15px;
}

.burger {
    display: none;
    width: 42px;
    height: 42px;
    border: none;
    background: transparent;
    cursor: pointer;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    padding: 0;
}

.burger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-main);
    border-radius: 2px;
    transition: all .3s ease;
}

.burger.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

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

.burger.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Mobile menu */
.mobile-menu {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(247,245,239,.98);
    z-index: 999;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-12px);
    transition: all .3s ease;
}

.mobile-menu.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.mobile-menu .mobile-link {
    display: flex;
    align-items: center;
    min-height: 48px;
    padding: 0 16px;
    font-size: 17px;
    font-weight: 600;
    color: var(--text-main);
    border-radius: 10px;
    transition: background .25s ease;
}

.mobile-menu .mobile-link:hover {
    background: var(--primary-light);
    color: var(--primary);
}

.mobile-menu .mobile-link.active {
    background: var(--primary-light);
    color: var(--primary);
}

.mobile-menu .btn {
    margin-top: 16px;
    width: 100%;
}

/* ========== Breadcrumb ========== */
.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 18px;
}

.breadcrumb a {
    color: var(--text-muted);
}

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

.breadcrumb .sep {
    color: var(--text-muted);
}

.breadcrumb .current {
    color: var(--primary);
    font-weight: 600;
}

/* ========== Category Hero ========== */
.category-hero {
    position: relative;
    background: var(--bg-dark);
    background-image: url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
    padding: 140px 0 90px;
    overflow: hidden;
}

.category-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(11,46,35,.82) 30%, rgba(11,46,35,.45) 100%);
}

.category-hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--accent);
    opacity: .85;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,.12);
    border: 1px solid rgba(255,255,255,.25);
    color: var(--text-white);
    font-size: 13px;
    font-weight: 600;
    padding: 6px 16px;
    border-radius: 999px;
    margin-bottom: 20px;
    letter-spacing: .5px;
}

.hero-badge i {
    color: var(--accent);
}

.category-hero h1 {
    font-size: 46px;
    line-height: 1.2;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 18px;
}

.category-hero .hero-desc {
    font-size: 17px;
    line-height: 1.8;
    color: rgba(255,255,255,.85);
    max-width: 680px;
    margin-bottom: 32px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 36px;
}

.hero-trust {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
}

.hero-trust span {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 14px;
    color: rgba(255,255,255,.7);
}

.hero-trust i {
    color: var(--accent);
    font-size: 15px;
}

/* ========== Common Sections ========== */
.section {
    padding: 96px 0;
}

.section-label {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--primary);
    background: var(--primary-light);
    padding: 6px 14px;
    border-radius: 999px;
    margin-bottom: 14px;
}

.section-title {
    font-size: 34px;
    line-height: 1.3;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 14px;
}

.section-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 40px;
    max-width: 720px;
}

/* Content mixed section */
.content-section {
    padding: 96px 0;
    background: #fff;
}

.content-section.alt-bg {
    background: var(--bg-light);
}

.content-section .grid-x {
    align-items: center;
}

.content-section img {
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-default);
    width: 100%;
    object-fit: cover;
}

.content-text {
    padding-left: 20px;
}

.content-reverse .content-text {
    padding-left: 0;
    padding-right: 20px;
}

.content-text h2 {
    font-size: 32px;
    line-height: 1.3;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 16px;
}

.content-text p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.check-list {
    margin: 24px 0;
}

.check-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 15px;
    color: var(--text-main);
    padding: 8px 0;
    line-height: 1.6;
}

.check-list i {
    color: var(--primary);
    font-size: 16px;
    margin-top: 4px;
    flex-shrink: 0;
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    font-weight: 600;
    font-size: 15px;
    transition: all .25s ease;
    margin-top: 8px;
}

.text-link:hover {
    color: var(--primary-dark);
    gap: 12px;
}

/* ========== Steps Section ========== */
.steps-section {
    padding: 96px 0;
    background: var(--bg-dark);
    background-image: url('/assets/images/backpic/back-2.webp');
    background-size: cover;
    background-position: center;
    position: relative;
}

.steps-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(11,46,35,.9);
}

.steps-section .container {
    position: relative;
    z-index: 2;
}

.steps-section .section-title {
    color: var(--text-white);
}

.steps-section .section-subtitle {
    color: rgba(255,255,255,.75);
}

.step-card {
    background: rgba(255,255,255,.06);
    border: 1px solid rgba(255,255,255,.14);
    border-radius: var(--radius-card);
    padding: 32px 28px;
    height: 100%;
    transition: all .3s ease;
}

.step-card:hover {
    background: rgba(255,255,255,.1);
    transform: translateY(-5px);
}

.step-num {
    font-size: 42px;
    font-weight: 700;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 16px;
    display: block;
}

.step-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 10px;
}

.step-card p {
    font-size: 14px;
    line-height: 1.7;
    color: rgba(255,255,255,.72);
    margin: 0;
}

/* ========== Feature Cards ========== */
.features-section {
    padding: 96px 0;
    background: var(--bg-light);
}

.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    padding: 32px 28px;
    height: 100%;
    box-shadow: var(--shadow-default);
    transition: all .25s ease;
}

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

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 10px;
}

.feature-card p {
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-secondary);
    margin: 0;
}

/* ========== Scenes Section ========== */
.scenes-section {
    padding: 96px 0;
    background: #fff;
}

.scene-card {
    background: var(--bg-light);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    padding: 36px 30px;
    height: 100%;
    position: relative;
    overflow: hidden;
    transition: all .3s ease;
}

.scene-card:hover {
    background: #fff;
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
}

.scene-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    opacity: 0;
    transition: opacity .3s ease;
}

.scene-card:hover::before {
    opacity: 1;
}

.scene-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    margin-bottom: 18px;
}

.scene-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 10px;
}

.scene-card p {
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-secondary);
    margin: 0;
}

/* ========== FAQ ========== */
.faq-section {
    padding: 96px 0;
    background: var(--bg-light);
}

.faq-wrap {
    max-width: 860px;
    margin: 0 auto 32px;
}

.faq-item {
    border-bottom: 1px solid var(--border);
    background: #fff;
    border-radius: 0;
    transition: background .25s ease;
}

.faq-item:first-child {
    border-top: 1px solid var(--border);
    border-radius: var(--radius-card) var(--radius-card) 0 0;
}

.faq-item:last-child {
    border-radius: 0 0 var(--radius-card) var(--radius-card);
}

.faq-question {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 24px 24px;
    cursor: pointer;
    transition: background .25s ease;
    user-select: none;
}

.faq-question:hover {
    background: var(--primary-light);
}

.q-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    flex-shrink: 0;
}

.q-text {
    flex: 1;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-main);
    line-height: 1.5;
}

.q-arrow {
    color: var(--text-muted);
    font-size: 14px;
    transition: transform .3s ease;
    flex-shrink: 0;
}

.faq-item.active .q-arrow {
    transform: rotate(180deg);
    color: var(--primary);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height .35s ease;
    padding: 0 24px 0 68px;
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-secondary);
}

.faq-item.active .faq-answer {
    max-height: 320px;
    padding-bottom: 24px;
}

.faq-footer {
    text-align: center;
    margin-top: 32px;
}

.faq-footer .btn {
    height: 46px;
    padding: 0 28px;
}

/* ========== Inline CTA ========== */
.inline-cta {
    padding: 80px 0;
    background: #fff;
}

.cta-box {
    background: linear-gradient(135deg, var(--bg-dark) 0%, #0D3D2F 100%);
    border-radius: var(--radius-lg);
    padding: 56px 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    position: relative;
    overflow: hidden;
}

.cta-box::after {
    content: '';
    position: absolute;
    width: 220px;
    height: 220px;
    border-radius: 50%;
    border: 2px solid rgba(201,164,76,.3);
    right: -60px;
    top: -80px;
    pointer-events: none;
}

.cta-text h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 10px;
}

.cta-text p {
    font-size: 15px;
    color: rgba(255,255,255,.7);
    margin: 0;
}

.cta-box .btn {
    flex-shrink: 0;
    position: relative;
    z-index: 2;
}

/* ========== Footer ========== */
.site-footer {
    background: var(--bg-dark);
    color: rgba(255,255,255,.7);
    padding: 64px 0 0;
}

.footer-grid {
    margin-bottom: 40px;
}

.footer-brand .footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 14px;
}

.footer-logo i {
    color: var(--accent);
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.7;
    color: rgba(255,255,255,.6);
    max-width: 280px;
    margin: 0;
}

.site-footer h4 {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 18px;
}

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

.site-footer ul a {
    font-size: 14px;
    color: rgba(255,255,255,.65);
    transition: color .25s ease;
}

.site-footer ul a:hover {
    color: var(--accent);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,.1);
    padding: 20px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: rgba(255,255,255,.5);
    margin: 0;
}

/* ========== Bottom Bar ========== */
.bottom-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: rgba(11,46,35,.92);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border-top: 1px solid rgba(255,255,255,.1);
    z-index: 999;
    display: flex;
    align-items: center;
    padding: 0 20px;
    transform: translateY(100%);
    opacity: 0;
    transition: all .3s ease;
    pointer-events: none;
}

.bottom-bar.visible {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
}

.bar-inner {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.bar-text {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #fff;
    font-size: 15px;
    font-weight: 600;
}

.bar-text i {
    color: var(--accent);
    font-size: 17px;
}

.bottom-bar .btn {
    height: 40px;
    padding: 0 24px;
    font-size: 15px;
}

@media (max-width: 640px) {
    .bottom-bar {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }
}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
    .header-nav .nav-link {
        padding: 10px 14px;
        font-size: 14px;
    }

    .brand-text {
        font-size: 15px;
    }

    .header-actions .search-btn {
        display: none;
    }

    .category-hero {
        padding: 120px 0 70px;
    }

    .category-hero h1 {
        font-size: 38px;
    }

    .section,
    .content-section,
    .steps-section,
    .features-section,
    .scenes-section,
    .faq-section {
        padding: 72px 0;
    }

    .content-text h2 {
        font-size: 28px;
    }

    .cta-box {
        flex-direction: column;
        text-align: center;
        padding: 48px 32px;
    }
}

@media (max-width: 768px) {
    .header-nav,
    .header-actions .btn {
        display: none;
    }

    .burger {
        display: flex;
    }

    .brand-text {
        font-size: 15px;
    }

    .category-hero {
        padding: 110px 0 60px;
    }

    .category-hero h1 {
        font-size: 32px;
    }

    .category-hero .hero-desc {
        font-size: 15px;
    }

    .hero-actions {
        flex-direction: column;
        align-items: flex-start;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .content-text,
    .content-reverse .content-text {
        padding: 32px 0 0;
    }

    .content-section img {
        width: 100%;
    }

    .section-title {
        font-size: 28px;
    }

    .step-card {
        margin-bottom: 24px;
    }

    .feature-card,
    .scene-card {
        margin-bottom: 24px;
    }

    .cta-box {
        padding: 40px 24px;
    }

    .cta-text h2 {
        font-size: 24px;
    }

    .cta-box .btn {
        width: 100%;
    }

    .faq-question {
        padding: 20px 16px;
    }

    .faq-answer {
        padding: 0 16px 0 48px;
    }

    .footer-grid .columns {
        margin-bottom: 32px;
    }
}

@media (max-width: 520px) {
    .container {
        padding: 0 20px;
    }

    .header-inner {
        padding: 0 20px;
    }

    .brand-text {
        font-size: 14px;
    }

    .brand-icon {
        width: 32px;
        height: 32px;
        font-size: 14px;
    }

    .category-hero h1 {
        font-size: 28px;
    }

    .section-title {
        font-size: 24px;
    }

    .content-text h2 {
        font-size: 24px;
    }

    .section,
    .content-section,
    .steps-section,
    .features-section,
    .scenes-section,
    .faq-section {
        padding: 60px 0;
    }

    .hero-trust {
        gap: 16px;
    }

    .faq-answer {
        padding: 0 16px 0 44px;
    }
}

/* roulang page: article */
:root {
    --primary: #0C6B4E;
    --primary-dark: #084D38;
    --primary-light: #E4F1EC;
    --accent: #C9A44C;
    --accent-hover: #B08F3C;
    --bg-light: #F7F5EF;
    --bg-dark: #0B2E23;
    --text-main: #1F2A26;
    --text-secondary: #4A5A54;
    --text-muted: #8A938E;
    --border: #E2DDD2;
    --card-bg: #FFFFFF;
    --text-white: #F9FAF8;
    --radius-card: 12px;
    --radius-btn: 8px;
    --shadow: 0 8px 30px rgba(11, 46, 35, .08);
    --shadow-hover: 0 14px 36px rgba(11, 46, 35, .14);
    --transition: .25s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
    font-size: 16px;
    line-height: 1.75;
    color: var(--text-main);
    background: var(--bg-light);
    -webkit-font-smoothing: antialiased;
}

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

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--primary-dark);
}

ul,
ol,
dl,
p,
h1,
h2,
h3,
h4,
h5,
h6 {
    margin: 0;
}

button,
input,
textarea {
    font-family: inherit;
    font-size: inherit;
    outline: none;
}

.row {
    max-width: 1200px;
    margin: 0 auto;
}

.columns {
    padding-left: 15px;
    padding-right: 15px;
}

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

/* ===== Header / Nav ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: 64px;
    background: rgba(247, 245, 239, .5);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255, 255, 255, .3);
    box-shadow: 0 4px 20px rgba(11, 46, 35, .04);
    transition: background .3s, box-shadow .3s, border-color .3s;
}

.site-header.scrolled {
    background: rgba(247, 245, 239, .96);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 6px 24px rgba(11, 46, 35, .08);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-main);
    font-weight: 800;
    font-size: 18px;
    line-height: 1.2;
    white-space: nowrap;
}

.header-logo .logo-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 2px solid var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    background: #fff;
    flex-shrink: 0;
    font-size: 15px;
}

.header-logo:hover {
    color: var(--primary);
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 28px;
}

.header-nav .nav-link {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-main);
    text-decoration: none;
    position: relative;
    padding: 6px 2px;
    transition: color var(--transition);
}

.header-nav .nav-link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
    transform: scaleX(0);
    transform-origin: right;
    transition: transform .3s ease;
}

.header-nav .nav-link:hover {
    color: var(--primary);
}

.header-nav .nav-link:hover::after,
.header-nav .nav-link.active::after {
    transform: scaleX(1);
    transform-origin: left;
}

.header-nav .nav-link.active {
    color: var(--primary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-actions .search-btn {
    width: 38px;
    height: 38px;
    border-radius: 8px;
    background: var(--primary-light);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    cursor: pointer;
    transition: background var(--transition), transform var(--transition);
}

.header-actions .search-btn:hover {
    background: rgba(12, 107, 78, .15);
    transform: translateY(-1px);
}

.btn-header {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    height: 38px;
    padding: 0 20px;
    background: var(--primary);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    border-radius: var(--radius-btn);
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
}

.btn-header:hover {
    background: var(--primary-dark);
    color: #fff;
    box-shadow: 0 6px 16px rgba(11, 46, 35, .2);
    transform: translateY(-1px);
}

.menu-toggle {
    display: none;
    width: 40px;
    height: 40px;
    border: none;
    background: transparent;
    cursor: pointer;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    padding: 0;
}

.menu-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text-main);
    border-radius: 2px;
    transition: transform .3s, opacity .3s, background .3s;
}

.menu-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.mobile-nav {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(247, 245, 239, .98);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px 24px;
    z-index: 999;
    flex-direction: column;
    box-shadow: 0 12px 30px rgba(11, 46, 35, .06);
}

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

.mobile-nav a.mobile-link {
    display: block;
    padding: 14px 8px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-main);
    border-bottom: 1px solid var(--border);
    text-decoration: none;
    transition: color var(--transition), background var(--transition);
}

.mobile-nav a.mobile-link:hover,
.mobile-nav a.mobile-link.active {
    color: var(--primary);
    background: rgba(12, 107, 78, .06);
}

.mobile-nav .btn-mobile-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 46px;
    margin-top: 16px;
    background: var(--primary);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius-btn);
    text-decoration: none;
}

.mobile-nav .btn-mobile-cta:hover {
    background: var(--primary-dark);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 48px;
    padding: 0 28px;
    border-radius: var(--radius-btn);
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all var(--transition);
}

.btn-primary {
    background: var(--primary);
    color: #fff;
}

.btn-primary:hover {
    background: var(--primary-dark);
    color: #fff;
    box-shadow: 0 6px 16px rgba(11, 46, 35, .2);
    transform: translateY(-2px);
}

.btn-gold {
    background: var(--accent);
    color: var(--text-main);
}

.btn-gold:hover {
    background: var(--accent-hover);
    color: var(--text-main);
    box-shadow: 0 6px 16px rgba(192, 160, 74, .3);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--primary);
    color: var(--primary);
}

.btn-outline:hover {
    background: rgba(12, 107, 78, .1);
    color: var(--primary-dark);
    transform: translateY(-2px);
}

/* ===== Article Hero ===== */
.article-hero {
    padding: 140px 0 56px;
    background: linear-gradient(180deg, rgba(228, 241, 236, .8) 0%, var(--bg-light) 100%);
    border-bottom: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.article-hero-inner {
    max-width: 840px;
    margin: 0 auto;
    padding: 0 24px;
}

.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 24px;
    line-height: 1.6;
}

.breadcrumb a {
    color: var(--text-secondary);
    text-decoration: none;
}

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

.breadcrumb .sep {
    color: var(--border);
}

.breadcrumb .current {
    color: var(--primary);
    font-weight: 600;
    max-width: 360px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.article-hero h1 {
    font-size: 36px;
    line-height: 1.3;
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 20px;
    overflow-wrap: break-word;
    word-break: break-word;
}

.article-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 14px;
    color: var(--text-muted);
}

.article-meta .meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.article-meta .meta-sep {
    color: var(--border);
}

.article-meta .badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: 999px;
    background: var(--primary-light);
    color: var(--primary-dark);
    font-size: 13px;
    font-weight: 600;
}

.hero-wave {
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 24px;
}

/* ===== Article Body ===== */
.article-body {
    padding: 64px 0 72px;
}

.article-content {
    max-width: 800px;
    margin: 0 auto;
    font-size: 17px;
    line-height: 1.9;
    color: var(--text-main);
}

.article-content p {
    margin-bottom: 24px;
}

.article-content h2 {
    font-size: 26px;
    font-weight: 700;
    color: var(--text-main);
    margin: 48px 0 16px;
    line-height: 1.4;
}

.article-content h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-main);
    margin: 32px 0 16px;
    line-height: 1.4;
}

.article-content h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-main);
    margin: 24px 0 16px;
    line-height: 1.5;
}

.article-content ul,
.article-content ol {
    margin: 0 0 24px;
    padding-left: 20px;
}

.article-content li {
    margin-bottom: 12px;
    line-height: 1.8;
}

.article-content blockquote {
    border-left: 4px solid var(--primary);
    background: rgba(228, 241, 236, .2);
    padding: 16px 20px;
    margin: 0 0 24px;
    border-radius: 0 8px 8px 0;
    color: var(--text-secondary);
}

.article-content img {
    max-width: 100%;
    border-radius: var(--radius-card);
    height: auto;
    margin: 24px auto;
}

.article-content a {
    color: var(--primary);
    text-decoration: underline;
}

.article-content a:hover {
    color: var(--primary-dark);
}

.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 0 0 24px;
}

.article-content table th,
.article-content table td {
    border: 1px solid var(--border);
    padding: 12px 14px;
    text-align: left;
}

.article-content table th {
    background: var(--primary-light);
    font-weight: 600;
}

/* Empty State */
.article-empty {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    padding: 80px 24px;
}

.article-empty .empty-icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: rgba(12, 107, 78, .1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-size: 28px;
    color: var(--primary);
}

.article-empty p {
    font-size: 18px;
    color: var(--text-muted);
    margin-bottom: 24px;
}

/* ===== Related Posts ===== */
.related-posts {
    padding: 72px 0;
    background: var(--bg-light);
    border-top: 1px solid var(--border);
}

.section-head {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 40px;
}

.section-head h2 {
    font-size: 30px;
    font-weight: 800;
    color: var(--text-main);
    white-space: nowrap;
}

.section-head .section-line {
    flex: 1;
    height: 1px;
    background: var(--border);
}

.section-head .section-link {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    text-decoration: none;
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.section-head .section-link:hover {
    color: var(--primary-dark);
}

.related-card {
    margin-bottom: 24px;
}

.related-card-inner {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow);
    transition: transform var(--transition), box-shadow var(--transition);
}

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

.related-thumb {
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: var(--primary-light);
}

.related-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .4s ease;
}

.related-card-inner:hover .related-thumb img {
    transform: scale(1.04);
}

.related-body {
    padding: 20px 20px 22px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex: 1;
}

.related-body h3 {
    font-size: 16px;
    font-weight: 700;
    line-height: 1.5;
    color: var(--text-main);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 48px;
}

.related-date {
    font-size: 13px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}

/* ===== Article Back ===== */
.article-back {
    padding: 8px 0 80px;
    background: var(--bg-light);
    text-align: center;
}

/* ===== Footer ===== */
.site-footer {
    background: var(--bg-dark);
    color: rgba(255, 255, 255, .75);
    padding: 72px 0 0;
}

.footer-grid {
    padding-bottom: 48px;
}

.site-footer h4 {
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 18px;
}

.footer-brand .footer-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #fff;
    font-size: 18px;
    font-weight: 800;
    margin-bottom: 14px;
}

.footer-brand .footer-logo i {
    color: var(--accent);
    font-size: 20px;
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255, 255, 255, .6);
    max-width: 280px;
}

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

.site-footer ul li {
    margin-bottom: 12px;
}

.site-footer ul li a {
    color: rgba(255, 255, 255, .65);
    font-size: 14px;
    text-decoration: none;
    transition: color var(--transition), padding-left var(--transition);
}

.site-footer ul li a:hover {
    color: var(--accent);
    padding-left: 4px;
}

.site-footer ul li span {
    color: rgba(255, 255, 255, .5);
    font-size: 14px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, .12);
    padding: 20px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 14px;
    color: rgba(255, 255, 255, .5);
}

/* ===== Responsive ===== */
@media screen and (max-width: 1024px) {
    .article-hero h1 {
        font-size: 32px;
    }

    .related-body h3 {
        font-size: 15px;
    }
}

@media screen and (max-width: 768px) {
    .header-nav {
        display: none;
    }

    .header-actions .search-btn {
        display: none;
    }

    .btn-header {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    .article-hero {
        padding: 120px 0 40px;
    }

    .article-hero h1 {
        font-size: 28px;
    }

    .article-body {
        padding: 48px 0 56px;
    }

    .article-content {
        font-size: 16px;
        line-height: 1.8;
    }

    .article-content h2 {
        font-size: 23px;
        margin-top: 40px;
    }

    .article-content h3 {
        font-size: 20px;
    }

    .section-head {
        flex-wrap: wrap;
        gap: 12px;
        margin-bottom: 28px;
    }

    .section-head h2 {
        font-size: 26px;
    }

    .related-posts {
        padding: 56px 0;
    }

    .article-back {
        padding: 0 0 48px;
    }

    .site-footer {
        padding-top: 56px;
    }

    .footer-grid {
        padding-bottom: 32px;
    }
}

@media screen and (max-width: 520px) {
    .header-logo {
        font-size: 15px;
        gap: 8px;
    }

    .header-logo .logo-icon {
        width: 32px;
        height: 32px;
        font-size: 13px;
    }

    .article-hero h1 {
        font-size: 24px;
        line-height: 1.35;
    }

    .article-meta {
        font-size: 13px;
        gap: 8px;
    }

    .article-content {
        font-size: 15px;
    }

    .related-body {
        padding: 16px 16px 18px;
    }
}