/* roulang page: index */
:root {
  --primary: #2F5D4A;
  --primary-light: #3E735C;
  --dark: #14251F;
  --dark-card: #1E3D33;
  --accent: #D97A2B;
  --accent-hover: #E08430;
  --gold: #C9A227;
  --page-bg: #F6F3ED;
  --card-bg: #FFFFFF;
  --text: #1F2923;
  --text-2: #5C6B63;
  --border: #DFD8CE;
  --border-card: #E5DDD2;
  --error: #C94F31;
  --radius-card: 16px;
  --radius-img: 20px;
  --radius-btn: 10px;
  --radius-pill: 999px;
  --shadow: 0 2px 8px rgba(20,37,31,0.05);
  --shadow-hover: 0 14px 30px rgba(20,37,31,0.13);
  --transition: 200ms ease;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif; font-size: 15px; line-height: 1.78; color: var(--text); background: var(--page-bg); -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(--accent); }
button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; }
ul { padding: 0; margin: 0; list-style: none; }
p { margin: 0 0 1.4em; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.row { margin-left: -12px; margin-right: -12px; }
.columns { padding-left: 12px; padding-right: 12px; }

[id] { scroll-margin-top: 90px; }

.section { padding: 100px 0; }

.section-head { margin-bottom: 48px; }
.section-head.center { text-align: center; }
.section-tag { display: inline-block; font-size: 13px; font-weight: 600; color: var(--primary); background: #E3EBE5; padding: 5px 14px; border-radius: var(--radius-pill); margin-bottom: 12px; letter-spacing: 0.04em; }
.section-tag.light { background: rgba(255,255,255,0.12); color: #A8C7B8; }
.section-head h2 { font-size: clamp(1.4rem, 2.8vw, 2rem); font-weight: 700; line-height: 1.3; margin: 0 0 12px; color: var(--text); }
.section-head.center h2::after { content: ''; display: block; width: 48px; height: 3px; background: var(--primary); border-radius: 3px; margin: 14px auto 0; }
.section-sub { color: var(--text-2); font-size: 15px; max-width: 640px; margin: 0 auto; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 14px 28px; border-radius: var(--radius-btn); font-size: 15px; font-weight: 700; border: 2px solid transparent; transition: all var(--transition); cursor: pointer; line-height: 1.2; text-align: center; }
.btn:hover { transform: translateY(-2px); }
.btn:focus-visible { outline: 3px solid rgba(47,93,74,0.35); outline-offset: 2px; }
.btn:active { transform: translateY(0); }
.btn-lg { padding: 16px 34px; font-size: 16px; }
.btn-block { width: 100%; }
.btn-primary { background: var(--accent); color: #241A10; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); color: #241A10; }
.btn-outline { background: #fff; color: var(--primary); border-color: var(--primary); }
.btn-outline:hover { background: rgba(47,93,74,0.08); color: var(--primary); }
.btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,0.7); }
.btn-ghost:hover { background: rgba(255,255,255,0.12); color: #fff; border-color: #fff; }
.btn-pill { border-radius: var(--radius-pill); padding: 10px 22px; font-size: 14px; font-weight: 700; }

.card-hover { transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition); }
.card-hover:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }

/* ===== 导航 ===== */
.site-nav { position: fixed; top: 12px; left: 0; right: 0; z-index: 900; padding: 0 16px; }
.site-nav .nav-wrap { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 8px 12px 8px 20px; background: rgba(255,255,255,0.82); backdrop-filter: blur(10px); border-radius: var(--radius-pill); border: 1px solid rgba(255,255,255,0.65); box-shadow: 0 2px 8px rgba(20,37,31,0.05); transition: background var(--transition), box-shadow var(--transition); }
.site-nav.scrolled .nav-wrap { background: rgba(255,255,255,0.95); box-shadow: 0 8px 30px rgba(20,37,31,0.10); }
.nav-logo { display: inline-flex; align-items: center; gap: 8px; font-weight: 800; font-size: 17px; color: var(--text); }
.nav-logo .logo-badge { display: inline-flex; align-items: center; justify-content: center; width: 32px; height: 32px; border-radius: 10px; background: var(--primary); color: #fff; font-size: 15px; }
.nav-logo:hover { color: var(--primary); }
.nav-links { display: flex; align-items: center; gap: 2px; }
.nav-link { position: relative; padding: 9px 15px; border-radius: var(--radius-pill); font-size: 14px; font-weight: 600; color: var(--text); transition: color var(--transition), background var(--transition); }
.nav-link:hover { color: var(--primary); background: rgba(47,93,74,0.06); }
.nav-link.active { color: var(--primary); }
.nav-link.active::after { content: ''; position: absolute; left: 50%; bottom: 4px; transform: translateX(-50%); width: 6px; height: 6px; border-radius: 50%; background: var(--primary); }
.nav-right { display: flex; align-items: center; gap: 10px; }
.nav-toggle { display: none; background: transparent; border: 0; width: 42px; height: 42px; border-radius: 50%; padding: 8px; position: relative; z-index: 1001; }
.nav-toggle span { display: block; width: 20px; height: 2px; background: var(--text); margin: 4px auto; border-radius: 2px; transition: transform var(--transition), opacity var(--transition); }
.nav-toggle.active span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ===== Hero ===== */
.hero { position: relative; min-height: 90vh; display: flex; align-items: center; background: linear-gradient(180deg, rgba(20,37,31,0.55), rgba(20,37,31,0.88)), url('/assets/images/backpic/back-1.png') center/cover no-repeat; }
.hero-inner { padding: 140px 24px 100px; position: relative; z-index: 2; max-width: 1200px; margin: 0 auto; }
.hero-tag { display: inline-block; background: rgba(255,255,255,0.16); border: 1px solid rgba(255,255,255,0.25); color: #E7EEE9; font-size: 13px; font-weight: 600; padding: 6px 18px; border-radius: var(--radius-pill); backdrop-filter: blur(4px); margin-bottom: 22px; }
.hero h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 800; line-height: 1.2; color: #fff; margin: 0 0 16px; letter-spacing: 0.01em; }
.hero-sub { font-size: 17px; color: #DDE6DF; max-width: 560px; margin: 0 0 32px; line-height: 1.7; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 42px; }
.hero-trust { display: flex; flex-wrap: wrap; gap: 30px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,0.14); }
.trust-item { display: flex; align-items: center; gap: 8px; color: #CFDAD3; font-size: 14px; }
.trust-item i { color: var(--accent); font-size: 16px; width: 20px; text-align: center; }
.scroll-hint { position: absolute; bottom: 24px; left: 50%; transform: translateX(-50%); width: 26px; height: 42px; border: 2px solid rgba(255,255,255,0.5); border-radius: 20px; display: flex; justify-content: center; padding-top: 8px; z-index: 3; }
.scroll-hint .scroll-dot { width: 4px; height: 8px; border-radius: 2px; background: #fff; animation: scrollPulse 1.6s ease infinite; }
@keyframes scrollPulse { 0% { opacity: 1; transform: translateY(0); } 70% { opacity: 0.3; transform: translateY(12px); } 100% { opacity: 1; transform: translateY(0); } }

/* ===== 卖点 ===== */
.sellpoints { background: var(--page-bg); }
.sp-card { background: var(--card-bg); border: 1px solid var(--border-card); border-radius: var(--radius-card); padding: 32px; height: 100%; }
.sp-card.offset-card { margin-top: 20px; }
.sp-full-card { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; background: var(--card-bg); border: 1px solid var(--border-card); border-radius: var(--radius-card); padding: 30px 32px; margin-top: 20px; }
.sp-icon { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; background: #E3EBE5; color: var(--primary); border-radius: 14px; font-size: 19px; margin-bottom: 16px; }
.sp-card h3, .sp-full-card h3 { font-size: 17px; font-weight: 700; margin: 0 0 8px; color: var(--text); }
.sp-card p, .sp-full-card p { font-size: 14px; color: var(--text-2); line-height: 1.7; margin: 0; }
.sp-full-left { display: flex; gap: 18px; align-items: flex-start; flex: 1; min-width: 260px; }
.sp-full-left .sp-icon { margin-bottom: 0; flex-shrink: 0; }
.sp-link { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 700; color: var(--primary); padding: 8px 0; }
.sp-link:hover { color: var(--accent); }
.sp-link i { transition: transform var(--transition); }
.sp-link:hover i { transform: translateX(4px); }

/* ===== 演示 ===== */
.showcase { background: var(--dark); }
.showcase-head { margin-bottom: 60px; }
.showcase-head h2 { color: #fff; font-size: clamp(1.4rem, 2.8vw, 2rem); margin: 8px 0 0; }
.showcase-head .section-tag { background: rgba(255,255,255,0.12); color: #A8C7B8; }
.showcase-desc { color: #BCCBC3; font-size: 15px; line-height: 1.7; margin: 10px 0 0; }
.showcase-row { padding: 40px 0; border-bottom: 1px solid rgba(255,255,255,0.1); }
.showcase-row:last-child { border-bottom: 0; }
.showcase-img { border-radius: var(--radius-img); overflow: hidden; border: 1px solid rgba(255,255,255,0.2); box-shadow: 0 20px 50px rgba(0,0,0,0.3); }
.showcase-img img { width: 100%; height: auto; aspect-ratio: 4/3; object-fit: cover; transition: transform 0.4s ease; }
.showcase-img:hover img { transform: scale(1.03); }
.showcase-text { padding: 10px 0; }
.step-num { font-size: 42px; font-weight: 800; color: var(--gold); display: block; line-height: 1; margin-bottom: 14px; }
.showcase-text h3 { font-size: 22px; font-weight: 700; color: #fff; margin: 0 0 12px; }
.showcase-text p { color: #C3D2CB; font-size: 15px; line-height: 1.7; margin: 0 0 18px; }
.check-list { padding: 0; }
.check-list li { position: relative; padding-left: 26px; color: #D5E0DA; font-size: 14px; margin-bottom: 8px; line-height: 1.6; }
.check-list li::before { content: '\f00c'; font-family: 'Font Awesome 6 Free'; font-weight: 900; position: absolute; left: 0; top: 2px; color: var(--accent); font-size: 13px; }

/* ===== 证据 ===== */
.evidence { background: linear-gradient(180deg, var(--page-bg), #FFFFFF); }
.stats-row { display: flex; justify-content: space-between; flex-wrap: wrap; border-bottom: 1px solid var(--border); padding-bottom: 40px; margin-bottom: 48px; gap: 20px; }
.stat-item { text-align: center; flex: 1; min-width: 140px; }
.stat-num { font-size: 40px; font-weight: 800; color: var(--accent); line-height: 1.1; font-variant-numeric: tabular-nums; }
.stat-num small { font-size: 20px; }
.stat-label { font-size: 13px; color: var(--text-2); margin-top: 4px; }
.eval-row { margin-bottom: 16px; }
.eval-card { background: var(--card-bg); border: 1px solid var(--border-card); border-radius: var(--radius-card); padding: 28px; height: 100%; }
.eval-card.middle { margin-top: 24px; }
.quote-icon { font-size: 26px; color: var(--primary); opacity: 0.7; margin-bottom: 12px; }
.eval-card p { font-size: 14px; color: var(--text-2); line-height: 1.75; margin-bottom: 18px; }
.eval-user { display: flex; align-items: center; gap: 12px; }
.eval-avatar { display: inline-flex; align-items: center; justify-content: center; width: 38px; height: 38px; border-radius: 50%; background: #E3EBE5; color: var(--primary); font-size: 15px; font-weight: 700; flex-shrink: 0; }
.eval-user strong { font-size: 14px; color: var(--text); display: block; line-height: 1.2; }
.eval-user span:last-child { font-size: 12px; color: var(--text-2); }
.partner-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 40px; }
.partner-row span { font-size: 13px; font-weight: 600; color: var(--text-2); opacity: 0.55; text-align: center; padding: 8px 18px; border-radius: var(--radius-pill); border: 1px solid var(--border); background: rgba(255,255,255,0.6); transition: opacity var(--transition); }
.partner-row span:hover { opacity: 1; }

/* ===== 价格 ===== */
.pricing { background: #fff; }
.pricing-row { align-items: stretch; }
.price-card { position: relative; background: var(--card-bg); border: 1px solid var(--border-card); border-radius: var(--radius-card); padding: 40px 30px; height: 100%; display: flex; flex-direction: column; box-shadow: var(--shadow); transition: transform var(--transition), box-shadow var(--transition); }
.price-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.price-card.recommended { background: var(--dark-card); border-color: var(--dark-card); box-shadow: 0 20px 45px rgba(20,37,31,0.2); }
.price-card h3 { font-size: 18px; font-weight: 700; color: var(--text); margin: 0 0 8px; }
.price-card.recommended h3 { color: #fff; }
.price-num { font-size: 34px; font-weight: 800; color: var(--text); line-height: 1.2; margin: 10px 0 4px; font-variant-numeric: tabular-nums; }
.price-card.recommended .price-num { color: var(--accent); }
.price-num span { font-size: 14px; font-weight: 600; color: var(--text-2); }
.price-card.recommended .price-num span { color: rgba(255,255,255,0.6); }
.price-desc { font-size: 13px; color: var(--text-2); margin-bottom: 20px; }
.price-card.recommended .price-desc { color: #A9BCB3; }
.price-list { margin: 0 0 24px; flex: 1; }
.price-list li { font-size: 14px; color: var(--text); padding: 6px 0 6px 24px; position: relative; line-height: 1.6; }
.price-list li::before { content: '\f00c'; font-family: 'Font Awesome 6 Free'; font-weight: 900; position: absolute; left: 0; top: 6px; color: var(--primary); font-size: 12px; }
.price-card.recommended .price-list li { color: #E3EDE7; }
.price-card.recommended .price-list li::before { color: var(--accent); }
.price-card .btn { margin-top: auto; }
.rec-badge { position: absolute; top: -12px; right: 20px; background: var(--accent); color: #241A10; font-size: 12px; font-weight: 700; padding: 4px 14px; border-radius: var(--radius-pill); box-shadow: 0 4px 12px rgba(217,122,43,0.35); }

/* ===== FAQ ===== */
.faq-section { background: var(--page-bg); }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { background: var(--card-bg); border: 1px solid var(--border-card); border-radius: var(--radius-card); margin-bottom: 12px; overflow: hidden; transition: border-color var(--transition), box-shadow var(--transition); }
.faq-item.active { border-color: rgba(47,93,74,0.35); box-shadow: var(--shadow); }
.faq-q { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px; background: transparent; border: 0; padding: 18px 24px; font-size: 16px; font-weight: 700; color: var(--text); text-align: left; transition: color var(--transition); }
.faq-q:hover { color: var(--primary); }
.faq-q::after { content: '+'; font-size: 22px; color: var(--primary); font-weight: 600; transition: transform var(--transition); line-height: 1; flex-shrink: 0; }
.faq-item.active .faq-q::after { transform: rotate(45deg); }
.faq-a { display: grid; grid-template-rows: 0fr; transition: grid-template-rows var(--transition); padding: 0 24px; }
.faq-a > div { overflow: hidden; }
.faq-item.active .faq-a { grid-template-rows: 1fr; }
.faq-a p { font-size: 14px; color: var(--text-2); line-height: 1.7; margin: 0; padding-bottom: 20px; }

/* ===== 资讯 ===== */
.news-section { background: #fff; }
.news-header { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 36px; flex-wrap: wrap; }
.news-header h2 { margin: 4px 0 0; font-size: clamp(1.4rem, 2.8vw, 2rem); }
.news-header h2::after { content: ''; display: block; width: 48px; height: 3px; background: var(--primary); border-radius: 3px; margin-top: 10px; }
.more-link { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 700; color: var(--primary); padding: 8px 16px; border-radius: var(--radius-pill); background: #E3EBE5; transition: all var(--transition); }
.more-link:hover { background: var(--primary); color: #fff; }
.more-link i { transition: transform var(--transition); }
.more-link:hover i { transform: translateX(4px); }
.news-featured { background: var(--card-bg); border: 1px solid var(--border-card); border-radius: var(--radius-card); overflow: hidden; height: 100%; }
.news-featured-img { display: block; overflow: hidden; }
.news-featured-img img { width: 100%; aspect-ratio: 16/9; object-fit: cover; transition: transform 0.4s ease; }
.news-featured-img:hover img { transform: scale(1.04); }
.news-featured-body { padding: 20px 22px 22px; }
.cat-tag { display: inline-block; font-size: 12px; font-weight: 600; color: var(--primary); background: #E3EBE5; padding: 3px 12px; border-radius: var(--radius-pill); margin-bottom: 10px; }
.news-featured-body h3 { font-size: 19px; font-weight: 700; line-height: 1.4; margin: 0 0 8px; }
.news-featured-body h3 a { color: var(--text); }
.news-featured-body h3 a:hover { color: var(--primary); }
.news-featured-body p { font-size: 14px; color: var(--text-2); line-height: 1.7; margin: 0 0 12px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-meta { display: flex; align-items: center; gap: 14px; font-size: 13px; color: var(--text-2); }
.news-meta time { display: inline-flex; align-items: center; gap: 5px; }
.news-readlink { font-size: 13px; font-weight: 700; color: var(--primary); margin-left: auto; }
.news-list { display: flex; flex-direction: column; gap: 14px; }
.news-item { display: flex; gap: 16px; align-items: flex-start; background: var(--card-bg); border: 1px solid var(--border-card); border-radius: var(--radius-card); padding: 14px; }
.news-item-img { flex-shrink: 0; width: 72px; height: 72px; border-radius: 12px; overflow: hidden; }
.news-item-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.news-item-img:hover img { transform: scale(1.08); }
.news-item-body { flex: 1; min-width: 0; }
.news-item-body h4 { font-size: 15px; font-weight: 600; line-height: 1.4; margin: 0 0 6px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.news-item-body h4 a { color: var(--text); }
.news-item-body h4 a:hover { color: var(--primary); }
.news-item-body .news-meta { font-size: 12px; }
.empty-state { border: 1px dashed var(--border); border-radius: var(--radius-card); background: #FAF8F3; text-align: center; padding: 60px 20px; min-height: 200px; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.empty-state i { font-size: 40px; color: var(--border); margin-bottom: 12px; }
.empty-state p { color: var(--text-2); margin: 0; font-size: 14px; }

/* ===== 最终 CTA ===== */
.final-cta { background: var(--dark); position: relative; overflow: hidden; }
.final-cta::before { content: ''; position: absolute; top: -80px; right: -60px; width: 260px; height: 260px; border-radius: 50%; border: 34px solid rgba(255,255,255,0.035); }
.final-cta::after { content: ''; position: absolute; bottom: -100px; left: -60px; width: 300px; height: 300px; border-radius: 50%; border: 40px solid rgba(255,255,255,0.025); }
.final-cta .container { position: relative; z-index: 2; }
.cta-text h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); font-weight: 800; color: #fff; line-height: 1.25; margin: 0 0 16px; }
.cta-text p { font-size: 15px; color: #C3D2CB; line-height: 1.7; margin: 0 0 30px; max-width: 440px; }
.cta-text .btn { margin-bottom: 12px; }
.contact-card { background: #fff; border-radius: var(--radius-img); box-shadow: 0 20px 50px rgba(0,0,0,0.3); padding: 32px; }
.contact-card h3 { font-size: 20px; font-weight: 800; color: var(--text); margin: 0 0 6px; }
.contact-sub { font-size: 13px; color: var(--text-2); margin: 0 0 22px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 14px; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 12px 16px; border: 1px solid var(--border); border-radius: var(--radius-btn); font-size: 15px; color: var(--text); background: #FAF8F3; transition: border-color var(--transition), box-shadow var(--transition), background var(--transition); }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--primary); background: #fff; box-shadow: 0 0 0 3px rgba(47,93,74,0.15); }
.form-group textarea { resize: vertical; min-height: 80px; line-height: 1.6; }

/* ===== 页脚 ===== */
.site-footer { background: var(--dark); color: #C8D2CC; padding-top: 60px; }
.footer-top { padding-bottom: 40px; }
.footer-logo { font-size: 20px; font-weight: 800; color: #fff; margin-bottom: 12px; }
.footer-brand p { font-size: 13px; line-height: 1.7; color: #9DB0A5; margin: 0; max-width: 240px; }
.footer-col h4 { font-size: 14px; font-weight: 700; color: #fff; margin: 0 0 14px; }
.footer-col a { display: block; font-size: 13px; color: #9DB0A5; padding: 4px 0; line-height: 1.7; transition: color var(--transition); }
.footer-col a:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 20px 0; }
.footer-bottom-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 13px; color: #8FA49A; }
.footer-bottom-row a { font-size: 13px; color: #8FA49A; transition: color var(--transition); }
.footer-bottom-row a:hover { color: var(--accent); }

/* ===== 浮动 CTA ===== */
.float-cta { position: fixed; right: 24px; bottom: 24px; z-index: 950; display: inline-flex; align-items: center; gap: 8px; background: var(--accent); color: #241A10; font-size: 14px; font-weight: 700; padding: 13px 22px; border-radius: var(--radius-pill); box-shadow: 0 10px 30px rgba(217,122,43,0.4); opacity: 0; visibility: hidden; transform: translateY(14px); transition: all 0.3s ease; animation: floatIdle 2s ease-in-out infinite; }
.float-cta.show { opacity: 1; visibility: visible; transform: translateY(0); }
.float-cta:hover { background: var(--accent-hover); color: #241A10; }
@keyframes floatIdle { 0%, 100% { margin-bottom: 0; } 50% { margin-bottom: 6px; } }

/* ===== Foundation 覆盖 ===== */
.columns { margin-bottom: 24px; }
.row:last-child .columns { margin-bottom: 0; }
@media (max-width: 1023px) {
  .footer-bottom .columns, .pricing-row .columns, .eval-row .columns, .news-grid .columns { margin-bottom: 24px; }
  .showcase-row .row .columns { margin-bottom: 24px; }
}

@media (max-width: 1023px) {
  .section { padding: 72px 0; }
  .showcase-head .large-6 { margin-bottom: 0; }
  .showcase-head .large-5 { margin-bottom: 0; }
  .showcase-desc { margin-top: 0; }
  .final-cta .row .columns { margin-bottom: 20px; }
  .final-cta .row .columns:last-child { margin-bottom: 0; }
  .contact-card { margin-top: 30px; }
}
@media (max-width: 767px) {
  .section { padding: 64px 0; }
  .site-nav .nav-wrap { padding-left: 16px; }
  .nav-links { position: fixed; top: 0; right: 0; width: 100%; height: 100vh; background: var(--dark); z-index: 1000; transform: translateX(100%); transition: transform 200ms ease; display: flex; flex-direction: column; align-items: flex-start; justify-content: center; gap: 6px; padding: 80px 40px; }
  .nav-links.open { transform: translateX(0); box-shadow: -20px 0 50px rgba(0,0,0,0.3); }
  .nav-link { font-size: 18px; color: #F0F3F1; padding: 14px 0; width: 100%; border-radius: 0; }
  .nav-link:hover { background: transparent; color: var(--accent); }
  .nav-link.active { color: var(--accent); }
  .nav-link.active::after { left: 30px; bottom: 10px; }
  .nav-toggle { display: block; }
  .nav-right .btn-pill { display: none; }
  .hero { min-height: 100vh; }
  .hero-inner { padding: 120px 24px 80px; }
  .hero-trust { gap: 18px; }
  .trust-item { font-size: 13px; }
  .stats-row { gap: 24px; }
  .stat-num { font-size: 34px; }
  .price-card { margin-bottom: 28px; }
  .price-card.recommended { margin-top: 8px; }
  .news-list { margin-top: 4px; }
  .float-cta { right: 16px; bottom: 16px; padding: 12px 18px; font-size: 13px; }
  .footer-bottom-row { justify-content: center; text-align: center; }
  .footer-bottom-row a { margin-left: 10px; }
}
@media (max-width: 639px) {
  .section { padding: 56px 0; }
  .hero-sub { font-size: 16px; }
  .hero-ctas .btn { padding: 13px 22px; font-size: 14px; }
  .sp-card.offset-card { margin-top: 0; }
  .sp-full-card { flex-direction: column; align-items: flex-start; }
  .eval-card.middle { margin-top: 0; }
  .contact-card { padding: 26px; }
  .faq-q { font-size: 15px; padding: 16px 18px; }
  .faq-a { padding: 0 18px; }
  .news-featured-body { padding: 16px; }
  .news-item { padding: 12px; }
  .news-item-img { width: 60px; height: 60px; }
}

/* roulang page: category1 */
:root{
  --primary:#2F5D4A;
  --dark:#14251F;
  --accent:#D97A2B;
  --gold:#C9A227;
  --bg:#F6F3ED;
  --card:#FFFFFF;
  --dark-card:#1E3D33;
  --text:#1F2923;
  --text-secondary:#5C6B63;
  --border:#DFD8CE;
  --border-light:#E5DDD2;
  --error:#C94F31;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 2px 8px rgba(20,37,31,.05);
  --shadow-hover:0 14px 30px rgba(20,37,31,.13);
  --transition:200ms ease;
  --font-stack:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--font-stack);
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--transition),background var(--transition),border var(--transition),box-shadow var(--transition);}
a:hover{color:var(--primary);}
ul,ol{list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;border:none;background:none;outline:none;}
button{cursor:pointer;}
h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.3;color:var(--text);}
h1{font-size:clamp(1.8rem,4vw,2.8rem);font-weight:800;line-height:1.2;letter-spacing:-.01em;}
h2{font-size:clamp(1.4rem,2.8vw,2rem);font-weight:700;line-height:1.3;}
h2::after{
  content:"";
  display:block;
  width:48px;
  height:3px;
  background:var(--primary);
  border-radius:3px;
  margin-top:14px;
}
h3{font-size:1.18rem;font-weight:700;line-height:1.4;}
p{color:var(--text);line-height:1.78;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.section-pad{padding:100px 0;}
.text-center{text-align:center;}
.section-head{max-width:720px;margin:0 auto 56px;text-align:center;}
.section-head h2::after{margin-left:auto;margin-right:auto;}
.section-sub{color:var(--text-secondary);font-size:1rem;margin-top:16px;}
.eyebrow{
  display:inline-block;
  padding:5px 16px;
  border-radius:999px;
  background:rgba(47,93,74,.1);
  color:var(--primary);
  font-size:13px;
  font-weight:600;
  letter-spacing:.04em;
  margin-bottom:18px;
}

/* 按钮系统 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-weight:700;
  border-radius:var(--radius-sm);
  padding:14px 28px;
  font-size:15px;
  line-height:1.2;
  transition:all var(--transition);
  border:2px solid transparent;
  min-height:48px;
}
.btn-pill{border-radius:999px;padding:10px 22px;}
.btn-accent{
  background:var(--accent);
  color:#241A10;
  border-color:var(--accent);
  box-shadow:0 4px 14px rgba(217,122,43,.28);
}
.btn-accent:hover{
  background:#E08430;
  border-color:#E08430;
  color:#241A10;
  transform:translateY(-2px);
  box-shadow:0 8px 20px rgba(217,122,43,.35);
}
.btn-accent:focus-visible{outline:3px solid rgba(217,122,43,.35);outline-offset:2px;}
.btn-outline{
  background:transparent;
  border-color:var(--primary);
  color:var(--primary);
}
.btn-outline:hover{
  background:rgba(47,93,74,.1);
  border-color:var(--primary);
  color:var(--primary);
}
.btn-outline-light{
  background:transparent;
  border-color:rgba(255,255,255,.7);
  color:#fff;
}
.btn-outline-light:hover{
  background:rgba(255,255,255,.1);
  border-color:#fff;
  color:#fff;
}
.btn-block{width:100%;}

/* 悬浮胶囊导航 */
.site-nav{
  position:fixed;
  top:12px;
  left:0;
  right:0;
  z-index:1000;
  padding:0 24px;
  pointer-events:none;
}
.nav-wrap{
  max-width:1200px;
  margin:0 auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:10px 20px 10px 24px;
  border-radius:999px;
  background:rgba(255,255,255,.82);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,.6);
  box-shadow:0 2px 12px rgba(20,37,31,.08);
  pointer-events:auto;
  transition:background var(--transition),box-shadow var(--transition),border-color var(--transition);
}
.site-nav.scrolled .nav-wrap{
  background:rgba(255,255,255,.95);
  box-shadow:0 6px 24px rgba(20,37,31,.12);
}
.nav-logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.logo-badge{
  width:36px;
  height:36px;
  border-radius:50%;
  background:var(--dark);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:16px;
  font-weight:800;
}
.logo-name{
  font-size:17px;
  font-weight:800;
  color:var(--dark);
  letter-spacing:.01em;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:28px;
}
.nav-link{
  font-size:14px;
  font-weight:600;
  color:var(--text);
  position:relative;
  padding:8px 0;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:0;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--primary);
  transform:translateX(-50%) scale(0);
  transition:transform var(--transition);
}
.nav-link:hover::after,
.nav-link.active::after{
  transform:translateX(-50%) scale(1);
}
.nav-link:hover,.nav-link.active{color:var(--primary);}
.nav-right{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;
  flex-direction:column;
  gap:5px;
  padding:8px;
  min-height:44px;
  min-width:44px;
  align-items:center;
  justify-content:center;
  border-radius:8px;
  transition:background var(--transition);
}
.nav-toggle:hover{background:rgba(47,93,74,.08);}
.nav-toggle span{
  width:22px;height:2px;
  background:var(--dark);
  border-radius:2px;
  transition:all var(--transition);
}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

@media (max-width:900px){
  .nav-links{
    position:fixed;
    top:0;right:0;
    height:100vh;
    width:min(320px,78vw);
    background:var(--dark);
    flex-direction:column;
    align-items:flex-start;
    justify-content:center;
    gap:20px;
    padding:40px;
    transform:translateX(100%);
    transition:transform 200ms ease;
    border-radius:0;
    box-shadow:-8px 0 30px rgba(0,0,0,.18);
    z-index:998;
  }
  .nav-links.open{transform:translateX(0);}
  .nav-link{font-size:18px;color:rgba(255,255,255,.88);width:100%;}
  .nav-link::after{display:none;}
  .nav-link:hover,.nav-link.active{color:#fff;background:rgba(255,255,255,.08);padding:10px 14px;border-radius:8px;}
  .nav-toggle{display:flex;z-index:1002;position:relative;}
}

/* Hero */
.hero{
  position:relative;
  min-height:88vh;
  display:flex;
  align-items:center;
  background:linear-gradient(180deg,rgba(20,37,31,.55),rgba(20,37,31,.88)),url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding:140px 0 100px;
}
.hero-content{
  max-width:760px;
  color:#fff;
}
.hero-badge{
  display:inline-block;
  padding:6px 18px;
  border-radius:999px;
  background:rgba(255,255,255,.15);
  backdrop-filter:blur(6px);
  font-size:13px;
  font-weight:600;
  color:#F0F5F2;
  margin-bottom:22px;
  border:1px solid rgba(255,255,255,.2);
}
.hero h1{
  color:#fff;
  margin-bottom:20px;
  font-size:clamp(1.8rem,4vw,2.8rem);
}
.hero-sub{
  color:rgba(255,255,255,.85);
  font-size:clamp(1rem,1.4vw,1.15rem);
  line-height:1.8;
  max-width:560px;
  margin-bottom:34px;
}
.hero-actions{
  display:flex;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
  margin-bottom:54px;
}
.hero-trust{
  display:flex;
  align-items:center;
  gap:36px;
  flex-wrap:wrap;
  color:rgba(255,255,255,.65);
  font-size:13px;
}
.hero-trust span{display:inline-flex;align-items:center;gap:8px;}
.hero-trust i{color:var(--gold);}
.scroll-down{
  position:absolute;
  bottom:28px;
  left:50%;
  transform:translateX(-50%);
  color:rgba(255,255,255,.7);
  font-size:20px;
  animation:bounceDown 2s infinite;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.25);
  transition:all var(--transition);
}
.scroll-down:hover{color:#fff;border-color:#fff;background:rgba(255,255,255,.1);}
@keyframes bounceDown{
  0%,100%{transform:translate(-50%,0);}
  50%{transform:translate(-50%,-8px);}
}

/* 卡片 */
.card{
  background:var(--card);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  border:1px solid var(--border-light);
  padding:32px;
  transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
}
.card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(47,93,74,.3);
}
.icon-holder{
  width:56px;
  height:56px;
  border-radius:14px;
  background:rgba(47,93,74,.1);
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:24px;
  margin-bottom:20px;
}
.card-title{font-size:1.12rem;font-weight:700;margin-bottom:12px;color:var(--text);}
.card-desc{font-size:14px;color:var(--text-secondary);line-height:1.7;}

/* 核心价值 */
.feature-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
@media (max-width:1023px){
  .feature-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:639px){
  .feature-grid{grid-template-columns:1fr;}
}

/* 内容覆盖 */
.coverage-section{background:var(--card);}
.coverage-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.coverage-card{
  border-radius:var(--radius);
  overflow:hidden;
  background:var(--card);
  border:1px solid var(--border-light);
  box-shadow:var(--shadow);
  transition:all var(--transition);
}
.coverage-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
}
.coverage-img{
  aspect-ratio:16/9;
  overflow:hidden;
  position:relative;
}
.coverage-img img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .3s ease;
}
.coverage-card:hover .coverage-img img{transform:scale(1.03);}
.coverage-body{padding:20px 20px 24px;}
.coverage-tag{
  display:inline-block;
  padding:3px 12px;
  border-radius:999px;
  background:#E3EBE5;
  color:var(--primary);
  font-size:12px;
  font-weight:600;
  margin-bottom:12px;
}
.coverage-body h3{font-size:1.05rem;margin-bottom:8px;}
.coverage-body p{font-size:13px;color:var(--text-secondary);line-height:1.6;}
@media (max-width:1023px){
  .coverage-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:639px){
  .coverage-grid{grid-template-columns:1fr;}
}

/* 数据区 */
.stats-section{
  background:var(--dark);
  color:#fff;
}
.stats-section .section-sub{color:rgba(255,255,255,.7);}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:32px;
}
.stat-item{
  text-align:center;
  padding:24px 12px;
  border-left:1px solid rgba(255,255,255,.12);
}
.stat-item:first-child{border-left:none;}
.stat-num{
  font-size:clamp(1.6rem,3vw,2.4rem);
  font-weight:800;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
  margin-bottom:8px;
}
.stat-label{color:rgba(255,255,255,.7);font-size:13px;line-height:1.5;}
.stat-source{color:rgba(255,255,255,.35);font-size:12px;margin-top:6px;}
@media (max-width:1023px){
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:24px;}
  .stat-item:nth-child(3){border-left:none;}
}
@media (max-width:639px){
  .stats-grid{grid-template-columns:1fr;gap:16px;}
  .stat-item{border-left:none;border-top:1px solid rgba(255,255,255,.12);}
  .stat-item:first-child{border-top:none;padding-top:0;}
}

/* 适用场景 */
.scene-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.scene-card{
  background:var(--card);
  border-radius:var(--radius);
  border:1px solid var(--border-light);
  box-shadow:var(--shadow);
  padding:36px 32px;
  text-align:center;
  transition:all var(--transition);
}
.scene-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
}
.scene-icon{
  width:64px;height:64px;
  margin:0 auto 20px;
  border-radius:20px;
  background:rgba(217,122,43,.12);
  color:var(--accent);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:26px;
}
.scene-card h3{font-size:1.1rem;margin-bottom:12px;}
.scene-card p{font-size:14px;color:var(--text-secondary);line-height:1.7;}
@media (max-width:1023px){
  .scene-grid{grid-template-columns:1fr;max-width:560px;margin:0 auto;gap:20px;}
}

/* 流程 */
.journey-section{
  background:var(--card);
}
.journey-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:32px;
  position:relative;
}
.journey-step{
  position:relative;
  padding-top:60px;
  text-align:center;
}
.step-num{
  width:44px;height:44px;
  border-radius:50%;
  background:var(--dark);
  color:#fff;
  font-weight:800;
  display:flex;
  align-items:center;
  justify-content:center;
  margin:0 auto 18px;
  font-size:15px;
  position:absolute;
  top:0;
  left:50%;
  transform:translateX(-50%);
  z-index:2;
  box-shadow:0 0 0 6px rgba(47,93,74,.12);
}
.journey-step h3{font-size:1rem;margin-bottom:10px;}
.journey-step p{font-size:13px;color:var(--text-secondary);line-height:1.6;}
@media (max-width:1023px){
  .journey-grid{grid-template-columns:repeat(2,1fr);gap:28px;}
}
@media (max-width:639px){
  .journey-grid{grid-template-columns:1fr;gap:24px;}
}

/* FAQ */
.faq-wrap{max-width:800px;margin:0 auto;}
.faq-item{
  background:var(--card);
  border:1px solid var(--border-light);
  border-radius:var(--radius);
  padding:24px 28px;
  margin-bottom:16px;
  box-shadow:var(--shadow);
  transition:all var(--transition);
}
.faq-item:hover{border-color:rgba(47,93,74,.3);}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  cursor:pointer;
  font-weight:700;
  font-size:15px;
  color:var(--text);
  user-select:none;
}
.faq-icon{
  width:28px;height:28px;
  border-radius:50%;
  background:rgba(47,93,74,.1);
  color:var(--primary);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:15px;
  font-weight:700;
  flex-shrink:0;
  transition:transform .2s ease,background .2s ease;
}
.faq-item.open .faq-icon{
  transform:rotate(45deg);
  background:var(--primary);
  color:#fff;
}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .25s ease;
}
.faq-a-inner{
  padding-top:16px;
  font-size:14px;
  color:var(--text-secondary);
  line-height:1.75;
  border-top:1px solid var(--border-attn);
}

/* CTA 条 */
.cta-strip{
  background:linear-gradient(120deg,#14251F 0%,#1E3D33 100%);
  border-radius:24px;
  padding:56px 64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  position:relative;
  overflow:hidden;
}
.cta-strip::before{
  content:"";
  position:absolute;
  right:-40px;top:-40px;
  width:200px;height:200px;
  border-radius:50%;
  background:rgba(255,255,255,.04);
}
.cta-strip h2{color:#fff;}
.cta-strip h2::after{background:var(--accent);}
.cta-strip p{color:rgba(255,255,255,.72);margin-top:14px;font-size:15px;}
.cta-actions{flex-shrink:0;}
@media (max-width:900px){
  .cta-strip{flex-direction:column;text-align:center;padding:48px 28px;}
  .cta-strip h2::after{margin-left:auto;margin-right:auto;}
}

/* 页脚 */
.site-footer{
  background:var(--dark);
  color:#C8D2CC;
  padding:72px 0 0;
  margin-top:100px;
}
.footer-top{padding-bottom:48px;}
.footer-brand .footer-logo{
  font-size:22px;
  font-weight:800;
  color:#fff;
  margin-bottom:14px;
}
.footer-brand p{font-size:14px;color:rgba(255,255,255,.65);line-height:1.7;max-width:240px;}
.footer-col h4{
  color:#fff;
  font-size:14px;
  font-weight:700;
  margin-bottom:18px;
  letter-spacing:.03em;
}
.footer-col a{
  display:block;
  font-size:13px;
  color:rgba(255,255,255,.65);
  line-height:2;
  transition:color var(--transition);
}
.footer-col a:hover{color:var(--accent);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0;
}
.footer-bottom-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.5);
}
.footer-bottom-row a{color:rgba(255,255,255,.5);margin-left:18px;}
.footer-bottom-row a:hover{color:#fff;}
@media (max-width:639px){
  .footer-bottom-row{justify-content:center;text-align:center;}
  .footer-bottom-row a{margin:0 9px;}
  .site-footer{margin-top:64px;}
}

/* 浮动 CTA */
.float-cta{
  position:fixed;
  bottom:24px;right:24px;
  z-index:999;
  opacity:0;
  visibility:hidden;
  transform:translateY(12px);
  transition:all .3s ease;
}
.float-cta.show{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
}
.float-cta .btn{
  box-shadow:0 8px 28px rgba(217,122,43,.4);
  animation:floatPulse 2.4s ease-in-out infinite;
}
@keyframes floatPulse{
  0%,100%{transform:translateY(0);}
  50%{transform:translateY(-4px);}
}
@media (max-width:639px){
  .float-cta{bottom:16px;right:16px;}
  .float-cta .btn{padding:12px 20px;font-size:14px;}
}

/* 通用区块标题 */
.section-title{
  margin-bottom:56px;
}
/* 面包屑 */
.crumbs{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-secondary);
  margin-bottom:28px;
  flex-wrap:wrap;
}
.crumbs a{color:var(--text-secondary);}
.crumbs a:hover{color:var(--primary);}
.crumbs i{font-size:10px;color:var(--border);}

/* 分类页 header */
.category-hero{
  background:linear-gradient(180deg,rgba(20,37,31,.6),rgba(20,37,31,.9)),url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color:#fff;
  padding:170px 0 90px;
  margin-top:0;
}
.category-hero .breadcrumb-light{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:rgba(255,255,255,.6);margin-bottom:22px;
}
.category-hero .breadcrumb-light a{color:rgba(255,255,255,.7);}
.category-hero .breadcrumb-light a:hover{color:#fff;}
.category-hero .breadcrumb-light i{font-size:10px;}
.category-hero h1{color:#fff;font-size:clamp(2rem,4vw,2.6rem);margin-bottom:18px;}
.category-hero .hero-sub{color:rgba(255,255,255,.85);max-width:620px;margin-bottom:32px;}
.category-hero .hero-actions{margin-bottom:0;}

/* 基础内容页头部留白 */
.page-pad-top{padding-top:120px;}

/* 移动端 */
@media (max-width:639px){
  .section-pad{padding:64px 0;}
  .hero{padding:120px 0 72px;}
  .hero-trust{gap:16px;flex-direction:column;align-items:flex-start;}
  .nav-wrap{padding:8px 12px 8px 16px;}
  .nav-right .btn-pill{display:none;}
  .section-head{margin-bottom:40px;}
  .cta-actions .btn{width:100%;}
}
@media (max-width:360px){
  .logo-name{font-size:15px;}
}

/* 无障碍 */
a:focus-visible,
button:focus-visible{
  outline:3px solid rgba(47,93,74,.4);
  outline-offset:2px;
}
::-moz-selection{background:rgba(47,93,74,.18);}
::selection{background:rgba(47,93,74,.18);}

/* roulang page: article */
:root {
  --primary: #2F5D4A;
  --primary-dark: #14251F;
  --primary-deep: #1E3D33;
  --accent: #D97A2B;
  --accent-hover: #E08430;
  --accent-text: #241A10;
  --gold: #C9A227;
  --bg: #F6F3ED;
  --card-bg: #FFFFFF;
  --text: #1F2923;
  --text-secondary: #5C6B63;
  --border: #DFD8CE;
  --card-border: #E5DDD2;
  --white-dark: #C8D2CC;
  --error: #C94F31;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 20px;
  --radius-pill: 999px;
  --shadow: 0 2px 8px rgba(20,37,31,0.05);
  --shadow-hover: 0 14px 30px rgba(20,37,31,0.13);
  --shadow-accent: 0 8px 20px rgba(217,122,43,0.28);
  --transition: 200ms ease;
  --font-family: system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: 15px;
  line-height: 1.78;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition), background var(--transition), border-color var(--transition), box-shadow var(--transition);
}

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

.row {
  max-width: 1200px;
}

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

.columns {
  padding-left: 12px;
  padding-right: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 700;
  font-size: 15px;
  line-height: 1.2;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  outline-offset: 3px;
}

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

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

.btn-accent:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: var(--accent-text);
  transform: translateY(-2px);
  box-shadow: var(--shadow-accent);
}

.btn-accent:active {
  transform: translateY(0);
  box-shadow: none;
}

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

.btn-outline:hover {
  background: rgba(47, 93, 74, 0.12);
  color: var(--primary-dark);
}

.btn-outline-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.65);
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #fff;
  color: #fff;
}

.btn-pill {
  border-radius: var(--radius-pill);
  padding: 10px 22px;
  font-size: 14px;
}

.site-nav {
  position: fixed;
  top: 12px;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 24px;
  pointer-events: none;
}

.site-nav .nav-wrap {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  background: rgba(255, 255, 255, 0.82);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: var(--radius-pill);
  padding: 10px 20px 10px 24px;
  box-shadow: 0 4px 20px rgba(20, 37, 31, 0.08);
  transition: background var(--transition), box-shadow var(--transition);
  pointer-events: auto;
}

.site-nav.scrolled .nav-wrap {
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 8px 30px rgba(20, 37, 31, 0.12);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: 0.02em;
}

.nav-logo:hover {
  color: var(--text);
}

.logo-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--primary);
  color: #fff;
  font-size: 16px;
  font-weight: 800;
  flex-shrink: 0;
}

.logo-name {
  color: var(--text);
  white-space: nowrap;
}

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

.nav-link {
  position: relative;
  font-size: 14px;
  font-weight: 600;
  color: #4A5650;
  padding: 8px 2px;
  white-space: nowrap;
}

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

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

.nav-link.active::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
  position: relative;
  z-index: 1001;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 40px;
  height: 40px;
  border: none;
  background: transparent;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-pill);
}

.nav-toggle span {
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.article-hero {
  background: var(--bg);
  padding: 130px 0 48px;
}

.breadcrumb {
  font-size: 13px;
  color: var(--text-secondary);
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  margin-bottom: 24px;
}

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

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

.breadcrumb .sep {
  color: #A8B0AB;
}

.breadcrumb .current {
  color: var(--text);
  font-weight: 600;
  max-width: 300px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.article-head-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 40px 48px;
  box-shadow: var(--shadow);
}

.article-head-card h1 {
  font-size: clamp(1.6rem, 3.2vw, 2.2rem);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin-bottom: 16px;
  color: var(--text);
}

.article-excerpt {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
  max-width: 680px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
  font-size: 14px;
  color: var(--text-secondary);
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
  list-style: none;
}

.article-meta .meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 0;
}

.article-meta .meta-item i {
  color: var(--primary);
  font-size: 13px;
  width: 14px;
  text-align: center;
}

.article-meta .dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: #A8B0AB;
  display: inline-block;
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
}

.article-tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: #E3EBE5;
  border-radius: var(--radius-pill);
}

.article-content-section {
  background: var(--bg);
  padding: 48px 0 80px;
}

.article-content-wrap {
  max-width: 780px;
  margin: 0 auto;
}

.article-body > * + * {
  margin-top: 1.4em;
}

.article-body h2 {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text);
  margin-top: 2em;
  padding-bottom: 12px;
  display: inline-block;
  border-bottom: 3px solid var(--primary);
}

.article-body h3 {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--primary);
  margin-top: 1.8em;
}

.article-body h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin-top: 1.6em;
}

.article-body p {
  font-size: 16px;
  line-height: 1.85;
  color: #33403A;
}

.article-body a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

.article-body blockquote {
  background: var(--card-bg);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 24px 28px;
  color: var(--text-secondary);
  font-size: 15px;
  font-style: normal;
  box-shadow: var(--shadow);
  margin: 1.8em 0;
}

.article-body blockquote p:last-child {
  margin-bottom: 0;
}

.article-body img {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin: 24px auto;
  height: auto;
}

.article-body figure {
  margin: 24px 0;
}

.article-body figure img {
  margin-bottom: 8px;
}

.article-body figcaption {
  font-size: 13px;
  color: var(--text-secondary);
  text-align: center;
  margin-top: 8px;
}

.article-body ul,
.article-body ol {
  margin: 1.4em 0;
  padding: 0;
}

.article-body ul li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 10px;
  color: #33403A;
  list-style: none;
}

.article-body ul li::before {
  content: '';
  position: absolute;
  left: 2px;
  top: 0.7em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--primary);
}

.article-body ol {
  counter-reset: article-ol;
}

.article-body ol li {
  position: relative;
  padding-left: 32px;
  margin-bottom: 10px;
  color: #33403A;
  counter-increment: article-ol;
  list-style: none;
}

.article-body ol li::before {
  content: counter(article-ol);
  position: absolute;
  left: 0;
  top: 0.15em;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #E3EBE5;
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow);
  background: var(--card-bg);
  margin: 24px 0;
}

.article-body th {
  background: var(--primary-deep);
  color: #fff;
  text-align: left;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 600;
}

.article-body td {
  padding: 12px 16px;
  font-size: 14px;
  border-bottom: 1px solid var(--border);
  color: #33403A;
}

.article-body tbody tr:nth-child(even) {
  background: var(--bg);
}

.article-body hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2em 0;
}

.article-body code {
  background: #EFF3F0;
  color: var(--primary-dark);
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 14px;
}

.article-body pre {
  background: var(--primary-dark);
  color: #E8F0EB;
  padding: 24px;
  border-radius: var(--radius);
  overflow-x: auto;
  font-size: 14px;
  line-height: 1.7;
}

.article-body pre code {
  background: transparent;
  color: inherit;
  padding: 0;
}

.post-pager {
  max-width: 780px;
  margin: 48px auto 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  border-top: 1px dashed var(--border);
  padding-top: 32px;
}

.pager-item {
  display: block;
  padding: 16px 20px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}

.pager-item:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
  border-color: rgba(47, 93, 74, 0.3);
}

.pager-item .pager-label {
  font-size: 13px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 6px;
}

.pager-item .pager-label i {
  font-size: 12px;
}

.pager-item .pager-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition);
}

.pager-item:hover .pager-title {
  color: var(--primary);
}

.pager-next {
  text-align: right;
}

.pager-next .pager-label {
  justify-content: flex-end;
}

.related-section {
  background: #fff;
  padding: 80px 0;
  scroll-margin-top: 90px;
}

.related-section .section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 32px;
}

.related-section .section-head h2 {
  font-size: clamp(1.4rem, 2.8vw, 2rem);
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
  position: relative;
  padding-bottom: 12px;
}

.related-section .section-head h2::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 48px;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
}

.related-section .section-head .section-more {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.related-section .section-head .section-more:hover {
  color: var(--accent);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

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

.related-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  border-color: rgba(47, 93, 74, 0.25);
}

.related-card .card-media {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #E3EBE5;
}

.related-card .card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 200ms ease;
}

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

.related-card .card-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(255, 255, 255, 0.92);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
}

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

.related-card .card-body h3 {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--text);
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition);
}

.related-card:hover .card-body h3 {
  color: var(--primary);
}

.related-card .card-body p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 14px;
}

.related-card .card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: auto;
}

.related-card .card-link {
  font-size: 14px;
  color: var(--primary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

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

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  color: var(--primary);
  margin-top: 40px;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition);
}

.back-link:hover {
  background: rgba(47, 93, 74, 0.08);
  color: var(--primary-dark);
}

.back-link i {
  font-size: 14px;
}

.article-cta {
  background: var(--primary-dark);
  padding: 72px 0;
  position: relative;
  overflow: hidden;
}

.article-cta::before {
  content: '';
  position: absolute;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.06);
  right: -140px;
  top: -160px;
}

.article-cta::after {
  content: '';
  position: absolute;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.05);
  left: -60px;
  bottom: -120px;
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

.cta-text h2 {
  color: #fff;
  font-size: clamp(1.3rem, 2.6vw, 1.8rem);
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.4;
}

.cta-text p {
  color: var(--white-dark);
  font-size: 15px;
  max-width: 540px;
  line-height: 1.7;
}

.cta-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.empty-state {
  background: var(--card-bg);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 60px 24px;
  text-align: center;
  min-height: 200px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.empty-state .empty-icon {
  font-size: 40px;
  color: var(--primary);
  display: flex;
}

.empty-state p {
  font-size: 16px;
  color: var(--text-secondary);
}

.site-footer {
  background: var(--primary-dark);
  color: var(--white-dark);
  padding-top: 72px;
}

.site-footer .footer-top {
  padding-bottom: 48px;
}

.footer-brand .footer-logo {
  font-size: 24px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--white-dark);
  max-width: 280px;
}

.footer-col h4 {
  font-size: 16px;
  color: #fff;
  font-weight: 600;
  margin-bottom: 18px;
}

.footer-col a {
  display: block;
  font-size: 14px;
  color: var(--white-dark);
  padding: 6px 0;
  transition: color var(--transition);
  line-height: 1.6;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 22px 0;
}

.footer-bottom-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 13px;
  color: rgba(200, 210, 204, 0.7);
}

.footer-bottom-row a {
  color: rgba(200, 210, 204, 0.7);
  margin-left: 20px;
  font-size: 13px;
}

.footer-bottom-row a:hover {
  color: #fff;
}

.float-cta {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 200;
  background: var(--accent);
  color: var(--accent-text);
  font-weight: 700;
  font-size: 15px;
  padding: 14px 28px;
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-accent);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition), background var(--transition);
  animation: floatCta 2.6s ease-in-out infinite;
}

.float-cta.visible {
  opacity: 1;
  visibility: visible;
}

.float-cta:hover {
  background: var(--accent-hover);
  color: var(--accent-text);
}

.float-cta:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 3px;
}

@keyframes floatCta {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

@media (max-width: 1024px) {
  .nav-links {
    gap: 16px;
  }

  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  .site-nav {
    top: 8px;
    padding: 0 12px;
  }

  .site-nav .nav-wrap {
    padding: 8px 12px 8px 16px;
    border-radius: 24px;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 900;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 28px;
    background: rgba(20, 37, 31, 0.98);
    transform: translateX(100%);
    transition: transform 200ms ease;
    border-radius: 0;
    padding: 40px 24px;
  }

  .nav-links.open {
    transform: translateX(0);
  }

  .nav-links .nav-link {
    color: #fff;
    font-size: 18px;
    font-weight: 600;
    padding: 12px 20px;
    white-space: normal;
  }

  .nav-links .nav-link.active {
    color: var(--gold);
  }

  .nav-links .nav-link.active::after {
    background: var(--gold);
    bottom: 4px;
  }

  .nav-right {
    z-index: 1001;
  }

  .nav-toggle {
    display: flex;
    z-index: 1001;
  }

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

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

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

  .nav-toggle.active span {
    background: #fff;
  }
}

@media (max-width: 768px) {
  .article-head-card {
    padding: 28px 24px;
    border-radius: var(--radius);
  }

  .article-content-wrap {
    padding: 0;
  }

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

  .pager-next {
    text-align: left;
  }

  .pager-next .pager-label {
    justify-content: flex-start;
  }

  .cta-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-top .columns {
    margin-bottom: 24px;
  }

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

@media (max-width: 639px) {
  .article-hero {
    padding: 100px 0 32px;
  }

  .article-head-card {
    padding: 24px 20px;
  }

  .article-head-card h1 {
    font-size: 1.4rem;
  }

  .article-excerpt {
    font-size: 14px;
    line-height: 1.65;
  }

  .article-meta {
    gap: 8px 12px;
    font-size: 13px;
  }

  .article-meta .dot {
    display: none;
  }

  .article-body p {
    font-size: 15px;
    line-height: 1.8;
  }

  .article-body h2 {
    font-size: 1.3rem;
  }

  .article-body blockquote {
    padding: 20px;
  }

  .article-body table {
    font-size: 13px;
  }

  .article-body td,
  .article-body th {
    padding: 10px 12px;
  }

  .related-grid {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    gap: 16px;
    padding-bottom: 16px;
    margin-right: -24px;
    padding-right: 24px;
    padding-left: 2px;
  }

  .related-card {
    flex: 0 0 280px;
    scroll-snap-align: start;
  }

  .back-link {
    margin-top: 24px;
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .float-cta {
    bottom: 16px;
    right: 16px;
    padding: 12px 22px;
    font-size: 14px;
  }

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

  .cta-inner {
    gap: 24px;
  }

  .footer-bottom-row {
    flex-direction: column;
    text-align: center;
  }

  .footer-bottom-row a {
    margin-left: 12px;
    margin-right: 12px;
  }
}

/* roulang page: category2 */
:root {
      --primary: #2F5D4A;
      --primary-dark: #1E3D33;
      --deep: #14251F;
      --deep-card: #1E3D33;
      --accent: #D97A2B;
      --accent-hover: #E08430;
      --gold: #C9A227;
      --bg: #F6F3ED;
      --card: #FFFFFF;
      --text: #1F2923;
      --text-secondary: #5C6B63;
      --border: #DFD8CE;
      --border-card: #E5DDD2;
      --error: #C94F31;
      --radius: 16px;
      --radius-lg: 20px;
      --radius-pill: 999px;
      --shadow: 0 2px 8px rgba(20, 37, 31, 0.05);
      --shadow-hover: 0 14px 30px rgba(20, 37, 31, 0.13);
      --transition: 200ms ease;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: system-ui, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      background: var(--bg);
      color: var(--text);
      font-size: 15px;
      line-height: 1.78;
      -webkit-font-smoothing: antialiased;
    }

    .row {
      max-width: 1200px;
    }

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

    a {
      color: var(--primary);
      transition: color var(--transition);
    }

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

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

    button,
    input,
    textarea,
    select {
      font-family: inherit;
    }

    section {
      scroll-margin-top: 90px;
    }

    /* 按钮体系 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-weight: 700;
      font-size: 15px;
      text-decoration: none;
      border-radius: 10px;
      padding: 14px 28px;
      border: 0;
      cursor: pointer;
      transition: all var(--transition);
      line-height: 1.2;
    }

    .btn:focus-visible {
      outline: 3px solid rgba(47, 93, 74, 0.35);
      outline-offset: 2px;
    }

    .btn-accent {
      background: var(--accent);
      color: #241A10;
    }

    .btn-accent:hover {
      background: var(--accent-hover);
      color: #241A10;
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(217, 122, 43, 0.3);
    }

    .btn-accent:active {
      transform: translateY(0);
      box-shadow: none;
    }

    .btn-outline {
      background: transparent;
      border: 2px solid rgba(255, 255, 255, 0.85);
      color: #fff;
    }

    .btn-outline:hover {
      background: rgba(255, 255, 255, 0.14);
      color: #fff;
      transform: translateY(-2px);
    }

    .btn-outline:active {
      transform: translateY(0);
    }

    .btn-outline-green {
      background: transparent;
      border: 2px solid var(--primary);
      color: var(--primary);
    }

    .btn-outline-green:hover {
      background: rgba(47, 93, 74, 0.08);
      color: var(--primary);
      transform: translateY(-2px);
    }

    .btn-outline-green:active {
      transform: translateY(0);
    }

    .btn-pill {
      border-radius: 999px;
    }

    .btn-sm {
      padding: 10px 22px;
      font-size: 14px;
    }

    .btn-block {
      width: 100%;
    }

    /* 导航 */
    .site-nav {
      position: fixed;
      top: 12px;
      left: 0;
      right: 0;
      z-index: 1000;
      padding: 0 24px;
    }

    .nav-wrap {
      max-width: 1200px;
      margin: 0 auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: rgba(255, 255, 255, 0.82);
      backdrop-filter: blur(10px);
      border-radius: 999px;
      border: 1px solid rgba(255, 255, 255, 0.8);
      padding: 8px 16px 8px 20px;
      box-shadow: var(--shadow);
      transition: background var(--transition), box-shadow var(--transition);
    }

    .site-nav.scrolled .nav-wrap {
      background: rgba(255, 255, 255, 0.95);
      box-shadow: var(--shadow-hover);
    }

    .nav-logo {
      display: flex;
      align-items: center;
      gap: 8px;
      text-decoration: none;
      flex-shrink: 0;
    }

    .logo-badge {
      width: 36px;
      height: 36px;
      border-radius: 12px;
      background: var(--primary);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 18px;
    }

    .logo-name {
      font-size: 18px;
      font-weight: 800;
      color: var(--text);
      white-space: nowrap;
    }

    .nav-links {
      display: flex;
      gap: 4px;
      align-items: center;
    }

    .nav-link {
      padding: 8px 14px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 600;
      color: var(--text-secondary);
      text-decoration: none;
      transition: all var(--transition);
    }

    .nav-link:hover {
      color: var(--primary);
      background: #EDF4F0;
    }

    .nav-link.active {
      color: var(--primary);
      background: #E3EBE5;
    }

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

    .nav-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: none;
      border: 0;
      cursor: pointer;
      padding: 10px 8px;
      width: 44px;
      height: 44px;
      align-items: center;
      justify-content: center;
      border-radius: 12px;
    }

    .nav-toggle:hover {
      background: rgba(47, 93, 74, 0.08);
    }

    .nav-toggle span {
      width: 20px;
      height: 2px;
      background: var(--text);
      border-radius: 2px;
      transition: transform var(--transition), opacity var(--transition);
    }

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

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

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

    /* 面包屑 */
    .breadcrumb {
      font-size: 13px;
      color: var(--text-secondary);
      display: flex;
      align-items: center;
      gap: 10px;
      flex-wrap: wrap;
      margin-bottom: 16px;
    }

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

    .breadcrumb a:hover {
      text-decoration: underline;
    }

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

    /* 页头 */
    .page-head {
      padding: 150px 0 40px;
      background: var(--bg);
    }

    .page-head h1 {
      font-size: clamp(1.8rem, 4vw, 2.8rem);
      font-weight: 800;
      line-height: 1.2;
      margin-bottom: 16px;
      color: var(--text);
    }

    .page-head .lead {
      font-size: 16px;
      color: var(--text-secondary);
      max-width: 720px;
    }

    /* Banner */
    .login-banner {
      position: relative;
      padding: 96px 0;
      background: linear-gradient(180deg, rgba(20, 37, 31, 0.62), rgba(20, 37, 31, 0.9)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
      color: #fff;
    }

    .login-banner .row {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
    }

    .banner-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(255, 255, 255, 0.12);
      border-radius: 999px;
      padding: 6px 16px;
      font-size: 13px;
      color: var(--gold);
      margin-bottom: 20px;
    }

    .banner-title {
      font-size: clamp(1.7rem, 3.5vw, 2.4rem);
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 16px;
    }

    .banner-desc {
      color: rgba(255, 255, 255, 0.82);
      margin-bottom: 32px;
      max-width: 520px;
      font-size: 16px;
    }

    .banner-actions {
      display: flex;
      gap: 14px;
      flex-wrap: wrap;
    }

    .banner-trust {
      display: flex;
      gap: 28px;
      margin-top: 40px;
      flex-wrap: wrap;
    }

    .trust-item {
      display: flex;
      align-items: center;
      gap: 8px;
      color: rgba(255, 255, 255, 0.65);
      font-size: 13px;
    }

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

    .banner-visual {
      position: relative;
    }

    .banner-card-img {
      border-radius: 20px;
      border: 1px solid rgba(255, 255, 255, 0.25);
      box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
      width: 100%;
      object-fit: cover;
      aspect-ratio: 4 / 3;
    }

    .banner-float-badge {
      position: absolute;
      bottom: -16px;
      right: -12px;
      background: var(--accent);
      color: #241A10;
      border-radius: 16px;
      padding: 16px 20px;
      font-weight: 700;
      font-size: 14px;
      box-shadow: 0 10px 30px rgba(217, 122, 43, 0.4);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    /* 区块通用 */
    .section-block {
      padding: 100px 0;
    }

    .section-head {
      max-width: 720px;
      margin: 0 auto 56px;
      text-align: center;
    }

    .section-head.left {
      margin-left: 0;
      text-align: left;
    }

    .section-tag {
      display: inline-block;
      padding: 6px 14px;
      border-radius: 999px;
      font-size: 13px;
      font-weight: 600;
      background: #E3EBE5;
      color: var(--primary);
      margin-bottom: 16px;
    }

    .section-title {
      font-size: clamp(1.4rem, 2.8vw, 2rem);
      font-weight: 700;
      line-height: 1.3;
      color: var(--text);
      margin-bottom: 12px;
    }

    .section-title::after {
      content: '';
      display: block;
      width: 48px;
      height: 3px;
      background: var(--primary);
      border-radius: 2px;
      margin: 16px auto 0;
    }

    .section-head.left .section-title::after {
      margin-left: 0;
      margin-right: 0;
    }

    .section-desc {
      color: var(--text-secondary);
      font-size: 15px;
      margin-top: 12px;
    }

    .dark-section {
      background: var(--deep);
      color: #fff;
    }

    .dark-section .section-title {
      color: #fff;
    }

    .dark-section .section-title::after {
      background: var(--gold);
    }

    .dark-section .section-tag {
      background: rgba(255, 255, 255, 0.12);
      color: var(--gold);
    }

    .dark-section .section-desc {
      color: rgba(255, 255, 255, 0.75);
    }

    /* 核心服务瀑布流 */
    .feature-section {
      padding: 100px 0;
      background: var(--bg);
    }

    .feature-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
      margin-bottom: 24px;
      align-items: stretch;
    }

    .feature-row.flip .feature-main {
      order: -1;
    }

    .feature-main {
      background: var(--card);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow);
      border: 1px solid var(--border-card);
      position: relative;
      transition: transform var(--transition), box-shadow var(--transition);
      display: flex;
      flex-direction: column;
    }

    .feature-main::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 4px;
      background: var(--primary);
      border-radius: 20px 20px 0 0;
    }

    .feature-main.gold-variant::before {
      background: var(--gold);
    }

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

    .feature-main .deco-icon {
      width: 64px;
      height: 64px;
      border-radius: 20px;
      background: #E3EBE5;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 28px;
      margin-bottom: 24px;
    }

    .feature-main.gold-variant .deco-icon {
      background: #F5EFD8;
      color: var(--gold);
    }

    .feature-main h3 {
      font-size: 22px;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text);
      line-height: 1.4;
    }

    .feature-main p {
      color: var(--text-secondary);
      font-size: 15px;
      flex-grow: 1;
    }

    .feature-main .feature-points {
      margin-top: 20px;
      display: grid;
      gap: 8px;
      padding: 0;
      list-style: none;
    }

    .feature-main .feature-points li {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 14px;
      color: var(--text-secondary);
    }

    .feature-main .feature-points li i {
      color: var(--primary);
      font-size: 14px;
      width: 20px;
      text-align: center;
    }

    .feature-side {
      display: grid;
      grid-template-rows: 1fr 1fr;
      gap: 24px;
    }

    .feature-mini {
      background: var(--card);
      border-radius: var(--radius);
      padding: 28px 32px;
      box-shadow: var(--shadow);
      border: 1px solid var(--border-card);
      transition: transform var(--transition), box-shadow var(--transition);
    }

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

    .mini-icon {
      width: 40px;
      height: 40px;
      border-radius: 12px;
      background: #E3EBE5;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      margin-bottom: 12px;
    }

    .feature-mini h3 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text);
      line-height: 1.4;
    }

    .feature-mini p {
      color: var(--text-secondary);
      font-size: 14px;
      line-height: 1.65;
    }

    /* 登录流程 */
    .steps-section {
      padding: 100px 0;
      background: var(--deep);
      color: #fff;
    }

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

    .step-card {
      background: var(--deep-card);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius);
      padding: 32px 28px;
      position: relative;
      transition: transform var(--transition), border-color var(--transition);
    }

    .step-card:hover {
      transform: translateY(-4px);
      border-color: rgba(201, 162, 39, 0.5);
    }

    .step-num {
      font-size: 40px;
      font-weight: 800;
      color: var(--gold);
      line-height: 1;
      margin-bottom: 16px;
      font-variant-numeric: tabular-nums;
    }

    .step-icon {
      width: 48px;
      height: 48px;
      border-radius: 14px;
      background: rgba(47, 93, 74, 0.6);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      margin-bottom: 20px;
    }

    .step-card h3 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 10px;
      line-height: 1.4;
    }

    .step-card p {
      color: rgba(255, 255, 255, 0.68);
      font-size: 14px;
      line-height: 1.65;
    }

    /* 适用场景 */
    .scene-section {
      padding: 100px 0;
      background: #fff;
    }

    .scene-card {
      background: var(--bg);
      border-radius: var(--radius);
      padding: 32px 24px;
      text-align: center;
      border: 1px solid var(--border-card);
      transition: all var(--transition);
      height: 100%;
    }

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

    .scene-icon {
      width: 56px;
      height: 56px;
      margin: 0 auto 18px;
      border-radius: 16px;
      background: #E3EBE5;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
    }

    .scene-card h3 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text);
      line-height: 1.4;
    }

    .scene-card p {
      color: var(--text-secondary);
      font-size: 14px;
      line-height: 1.65;
    }

    /* FAQ */
    .faq-section {
      padding: 100px 0;
      background: var(--bg);
    }

    .faq-list {
      max-width: 820px;
      margin: 0 auto;
      display: grid;
      gap: 16px;
    }

    .faq-item {
      background: #fff;
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      border: 1px solid var(--border-card);
      overflow: hidden;
      transition: box-shadow var(--transition), border-color var(--transition);
    }

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

    .faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 20px;
      padding: 24px 28px;
      cursor: pointer;
      font-weight: 700;
      font-size: 16px;
      background: none;
      border: 0;
      width: 100%;
      text-align: left;
      color: var(--text);
      line-height: 1.5;
    }

    .faq-question:focus-visible {
      outline: 3px solid rgba(47, 93, 74, 0.35);
      outline-offset: -3px;
      border-radius: 16px;
    }

    .faq-icon {
      flex-shrink: 0;
      width: 28px;
      height: 28px;
      border-radius: 50%;
      background: #E3EBE5;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 16px;
      transition: transform var(--transition), background var(--transition);
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 200ms ease;
    }

    .faq-item.open .faq-answer {
      max-height: 480px;
    }

    .faq-answer-inner {
      padding: 0 28px 24px 28px;
      color: var(--text-secondary);
      font-size: 14px;
      line-height: 1.75;
    }

    /* CTA */
    .support-cta {
      padding: 80px 0;
      background: var(--deep);
      color: #fff;
    }

    .cta-box {
      background: linear-gradient(135deg, #1E3D33, #14251F);
      border-radius: 24px;
      padding: 56px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 40px;
      border: 1px solid rgba(255, 255, 255, 0.08);
      flex-wrap: wrap;
    }

    .cta-text h2 {
      font-size: clamp(1.5rem, 2.5vw, 2rem);
      font-weight: 700;
      margin-bottom: 12px;
      line-height: 1.3;
    }

    .cta-text p {
      color: rgba(255, 255, 255, 0.7);
      max-width: 520px;
    }

    .cta-actions {
      display: flex;
      gap: 14px;
      flex-wrap: wrap;
      align-items: center;
    }

    /* 页脚 */
    .site-footer {
      background: var(--deep);
      color: #C8D2CC;
      padding-top: 64px;
    }

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

    .footer-brand .footer-logo {
      font-size: 22px;
      font-weight: 800;
      color: #fff;
      margin-bottom: 12px;
    }

    .footer-brand p {
      font-size: 13px;
      line-height: 1.7;
      color: #C8D2CC;
      max-width: 240px;
    }

    .footer-col {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-col h4 {
      color: #fff;
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 6px;
    }

    .footer-col a {
      color: #C8D2CC;
      font-size: 13px;
      text-decoration: none;
      transition: color var(--transition);
      width: fit-content;
    }

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

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding: 20px 0;
      font-size: 13px;
      color: #8DA39B;
    }

    .footer-bottom-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      flex-wrap: wrap;
    }

    .footer-bottom-row a {
      color: #8DA39B;
      text-decoration: none;
      margin-left: 16px;
    }

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

    /* 浮动 CTA */
    .quick-cta {
      position: fixed;
      bottom: 24px;
      right: 24px;
      z-index: 900;
      opacity: 0;
      visibility: hidden;
      transform: translateY(20px);
      transition: all 300ms ease;
      animation: floatPulse 2.4s ease-in-out infinite;
    }

    .quick-cta.show {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
    }

    @keyframes floatPulse {
      0%, 100% { transform: translateY(0); }
      50% { transform: translateY(-4px); }
    }

    /* 移动端断点 */
    @media (max-width: 1024px) {
      .steps-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .scene-card {
        margin-bottom: 16px;
      }
    }

    @media (max-width: 768px) {
      .section-block,
      .features-section,
      .steps-section,
      .scene-section,
      .faq-section,
      .support-cta {
        padding: 64px 0;
      }

      .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 78%;
        max-width: 320px;
        height: 100vh;
        background: var(--deep);
        flex-direction: column;
        padding: 90px 36px 40px;
        transition: right 200ms ease;
        z-index: 999;
        box-shadow: -20px 0 40px rgba(0, 0, 0, 0.2);
        align-items: flex-start;
        gap: 20px;
      }

      .nav-links.open {
        right: 0;
      }

      .nav-link {
        color: rgba(255, 255, 255, 0.85);
        font-size: 18px;
        padding: 10px 0;
        width: 100%;
        border-radius: 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      }

      .nav-link:hover {
        background: transparent;
        color: var(--gold);
      }

      .nav-link.active {
        background: transparent;
        color: var(--gold);
      }

      .nav-toggle {
        display: flex;
      }

      .nav-right .btn {
        display: inline-flex;
      }

      .page-head {
        padding: 130px 0 32px;
      }

      .login-banner {
        padding: 64px 0;
      }

      .banner-visual {
        margin-top: 48px;
      }

      .banner-float-badge {
        right: 12px;
      }

      .feature-row {
        grid-template-columns: 1fr;
      }

      .feature-row.flip .feature-main {
        order: 0;
      }

      .feature-main {
        padding: 32px 28px;
      }

      .feature-side {
        gap: 16px;
      }

      .cta-box {
        padding: 36px 28px;
      }

      .footer-bottom-row {
        flex-direction: column;
        text-align: center;
      }
    }

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

      .nav-wrap {
        padding: 6px 12px 6px 14px;
      }

      .logo-name {
        font-size: 16px;
      }

      .logo-badge {
        width: 32px;
        height: 32px;
        font-size: 16px;
      }

      .nav-right .btn {
        display: none;
      }

      .page-head h1 {
        font-size: 1.7rem;
      }

      .steps-grid {
        grid-template-columns: 1fr;
      }

      .section-head {
        margin-bottom: 40px;
      }

      .quick-cta {
        bottom: 16px;
        right: 16px;
      }

      .scene-card {
        text-align: left;
        display: flex;
        align-items: flex-start;
        gap: 14px;
        padding: 20px;
      }

      .scene-icon {
        margin: 0;
        flex-shrink: 0;
      }

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

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