/* roulang page: index */
/* ============ 设计变量 ============ */
:root {
  --primary: #0E6E6B;
  --primary-dark: #0A5552;
  --secondary: #123332;
  --accent: #E9A13B;
  --accent-hover: #F0B65A;
  --coral: #F26A4E;
  --lime: #7AB55E;
  --bg: #FAF8F5;
  --bg-light: #F0EFEA;
  --white: #FFFFFF;
  --border: #E4E1DA;
  --text: #2A2A2A;
  --text-light: #6B6B6B;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 8px rgba(18,51,50,.06);
  --shadow-hover: 0 8px 24px rgba(18,51,50,.12);
  --font-main: -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  --trans: 150ms ease-out;
}

/* ============ Reset / Base ============ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color var(--trans), background var(--trans), box-shadow var(--trans); }
a:hover { color: var(--primary-dark); }
button { font-family: inherit; border: none; cursor: pointer; background: none; }
ul, ol { list-style: none; }
input, textarea, select { font-family: inherit; font-size: 1rem; }

/* ============ 容器与通用 ============ */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section-pad { padding: 90px 0; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-head h2 { font-size: 32px; font-weight: 700; color: var(--secondary); line-height: 1.35; margin-bottom: 12px; }
.section-head p { font-size: 16px; color: var(--text-light); line-height: 1.7; }

/* ============ 按钮体系 ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 28px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  transition: all var(--trans);
  white-space: nowrap;
  border: 1px solid transparent;
}
.btn-primary { background: var(--primary); color: var(--white); }
.btn-primary:hover { background: var(--primary-dark); color: var(--white); transform: translateY(-2px); box-shadow: 0 4px 16px rgba(14,110,107,.3); }
.btn-accent { background: var(--accent); color: var(--secondary); }
.btn-accent:hover { background: var(--accent-hover); color: var(--secondary); transform: scale(1.02); box-shadow: 0 4px 18px rgba(233,161,59,.35); }
.btn-outline { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-outline:hover { background: rgba(14,110,107,.06); transform: translateY(-2px); }
.btn-hero { background: var(--accent); color: var(--secondary); min-height: 52px; padding: 0 36px; font-size: 16px; border-radius: 12px; box-shadow: 0 6px 20px rgba(233,161,59,.35); }
.btn-hero:hover { background: var(--accent-hover); transform: scale(1.03); }
.btn-cta { background: var(--accent); color: var(--secondary); min-height: 52px; padding: 0 44px; font-size: 17px; border-radius: 12px; box-shadow: 0 6px 24px rgba(233,161,59,.4); }
.btn-cta:hover { background: var(--accent-hover); transform: scale(1.03); }
.btn:focus-visible { outline: 3px solid rgba(14,110,107,.3); outline-offset: 2px; }

/* ============ 悬浮胶囊导航 ============ */
.site-header {
  position: fixed;
  top: 12px;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 20px;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1180px;
  background: rgba(250,248,245,.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(18,51,50,.08);
  border-radius: 999px;
  padding: 8px 20px;
  box-shadow: 0 4px 24px rgba(18,51,50,.08);
  transition: box-shadow var(--trans);
}
.site-header .container:hover { box-shadow: 0 6px 32px rgba(18,51,50,.12); }
.brand-logo { font-size: 20px; font-weight: 800; color: var(--secondary); letter-spacing: -0.3px; white-space: nowrap; }
.brand-logo:hover { color: var(--primary); }
.main-nav { display: flex; align-items: center; gap: 4px; }
.nav-link {
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  transition: all var(--trans);
}
.nav-link:hover { background: rgba(14,110,107,.06); color: var(--primary); }
.nav-link.active { background: rgba(14,110,107,.12); color: var(--primary); font-weight: 600; }
.nav-cta { min-height: 38px; padding: 0 20px; font-size: 14px; }
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  border-radius: 50%;
  background: rgba(14,110,107,.08);
}
.nav-toggle span { display: block; width: 18px; height: 2px; background: var(--secondary); border-radius: 2px; transition: all var(--trans); }
.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); }

@media (max-width: 860px) {
  .main-nav {
    position: fixed;
    top: 72px;
    left: 20px;
    right: 20px;
    background: rgba(250,248,245,.97);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(18,51,50,.08);
    border-radius: 20px;
    padding: 16px;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    box-shadow: 0 8px 32px rgba(18,51,50,.14);
    transform: translateY(-16px);
    opacity: 0;
    visibility: hidden;
    transition: all .2s ease-out;
  }
  .main-nav.open { transform: translateY(0); opacity: 1; visibility: visible; }
  .nav-link { padding: 12px 20px; text-align: center; }
  .nav-cta { display: none; }
  .nav-toggle { display: flex; }
}

/* ============ Hero ============ */
.hero {
  position: relative;
  padding: 160px 0 100px;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  overflow: hidden;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(18,51,50,.9) 0%, rgba(18,51,50,.72) 45%, rgba(18,51,50,.35) 100%);
  z-index: 1;
}
.hero .container { position: relative; z-index: 2; }
.hero-row { display: flex; align-items: center; gap: 64px; max-width: 1200px; margin: 0 auto; }
.hero-left { flex: 1 1 55%; }
.hero-right { flex: 1 1 45%; display: flex; justify-content: center; }
.hero h1 {
  font-size: 48px;
  font-weight: 800;
  color: var(--white);
  line-height: 1.25;
  letter-spacing: -0.5px;
  margin-bottom: 20px;
  text-shadow: 0 2px 16px rgba(0,0,0,.2);
}
.hero-sub {
  font-size: 18px;
  color: rgba(255,255,255,.88);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 460px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 40px; }
.hero-tags { display: flex; gap: 24px; flex-wrap: wrap; }
.hero-tags span { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; color: rgba(255,255,255,.85); background: rgba(255,255,255,.1); padding: 6px 16px; border-radius: 999px; backdrop-filter: blur(4px); }

.hero-card {
  width: 300px;
  border-radius: 20px;
  overflow: hidden;
  background: var(--white);
  box-shadow: 0 20px 60px rgba(0,0,0,.3);
  position: relative;
  transform: rotate(2deg);
  transition: transform .3s ease-out;
}
.hero-card:hover { transform: rotate(0deg) translateY(-4px); }
.hero-card img { width: 100%; aspect-ratio: 9 / 16; object-fit: cover; }
.hero-card-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(0,0,0,.7);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  backdrop-filter: blur(4px);
}
.hero-card-info { position: absolute; bottom: 0; left: 0; right: 0; padding: 20px; background: linear-gradient(transparent, rgba(0,0,0,.82)); color: #fff; }
.hero-card-info strong { display: block; font-size: 15px; margin-bottom: 4px; }
.hero-card-info span { font-size: 12px; opacity: .85; }

/* ============ 信任数据条 ============ */
.trust-bar { background: var(--white); border-bottom: 1px solid var(--border); padding: 32px 0; }
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.trust-item strong { display: block; font-size: 32px; font-weight: 800; color: var(--accent); line-height: 1.2; }
.trust-item span { font-size: 14px; color: var(--text-light); }

/* ============ 爆款片段区 ============ */
.featured-section { padding: 90px 0; background: var(--bg); }
.featured-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.feature-card {
  display: block;
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: all var(--trans);
}
.feature-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); border-color: rgba(14,110,107,.3); }
.feature-cover { position: relative; aspect-ratio: 3 / 4; overflow: hidden; }
.feature-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s ease-out; }
.feature-card:hover .feature-cover img { transform: scale(1.02); }
.duration { position: absolute; top: 12px; right: 12px; background: rgba(0,0,0,.72); color: #fff; font-size: 12px; font-weight: 600; padding: 4px 10px; border-radius: 999px; backdrop-filter: blur(4px); }
.play-btn { position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); width: 48px; height: 48px; background: rgba(255,255,255,.92); color: var(--primary); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 18px; box-shadow: 0 4px 16px rgba(0,0,0,.25); transition: all var(--trans); }
.feature-card:hover .play-btn { transform: translate(-50%,-50%) scale(1.1); background: var(--accent); color: var(--secondary); }
.feature-hots { position: absolute; bottom: 12px; left: 12px; background: rgba(0,0,0,.68); color: #fff; font-size: 12px; padding: 4px 12px; border-radius: 999px; backdrop-filter: blur(4px); }
.feature-info { padding: 18px 18px 20px; }
.feature-info h3 { font-size: 17px; font-weight: 700; color: var(--secondary); margin-bottom: 6px; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.feature-info p { font-size: 14px; color: var(--text-light); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 10px; }

/* ============ 种草清单区 ============ */
.checklist-section { padding: 90px 0; background: var(--white); border-top: 1px solid var(--border); }
.checklist-layout { display: flex; gap: 56px; align-items: flex-start; }
.checklist-intro { flex: 1 1 40%; }
.checklist-intro h2 { font-size: 32px; font-weight: 700; color: var(--secondary); line-height: 1.4; margin-bottom: 16px; }
.checklist-intro p { font-size: 16px; color: var(--text-light); line-height: 1.8; margin-bottom: 28px; }
.checklist-list { flex: 1 1 60%; display: flex; flex-direction: column; }
.check-item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  padding: 22px 0;
  border-bottom: 1px solid var(--border);
  transition: background var(--trans);
}
.check-item:last-child { border-bottom: none; }
.check-item:hover { background: rgba(14,110,107,.02); }
.check-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  min-width: 44px;
  border: 1px solid var(--primary);
  color: var(--primary);
  border-radius: 10px;
  font-size: 15px;
  font-weight: 700;
  background: rgba(14,110,107,.04);
}
.check-item h4 { font-size: 17px; font-weight: 700; color: var(--secondary); margin-bottom: 4px; }
.check-item p { font-size: 14px; color: var(--text-light); line-height: 1.6; }

/* ============ 评论/口碑条 ============ */
.testimonials-section { padding: 90px 0; background: var(--bg-light); }
.testimonials-track {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  padding-bottom: 16px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}
.testimonials-track::-webkit-scrollbar { height: 6px; }
.testimonials-track::-webkit-scrollbar-thumb { background: rgba(14,110,107,.25); border-radius: 999px; }
.testimonials-track::-webkit-scrollbar-track { background: transparent; }
.testimonial-card {
  min-width: 320px;
  flex: 0 0 auto;
  scroll-snap-align: start;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px 28px 24px;
  box-shadow: var(--shadow-sm);
  transition: all var(--trans);
}
.testimonial-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); }
.stars { color: var(--accent); font-size: 16px; letter-spacing: 2px; margin-bottom: 14px; }
.testimonial-card > p { font-size: 15px; color: var(--text); line-height: 1.7; margin-bottom: 20px; }
.testimonial-card footer { display: flex; align-items: center; gap: 12px; }
.avatar {
  width: 44px;
  height: 44px;
  min-width: 44px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
}
.testimonial-card footer strong { display: block; font-size: 14px; color: var(--secondary); line-height: 1.3; }
.testimonial-card footer em { font-style: normal; font-size: 12px; color: var(--text-light); }
.verified {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: var(--lime);
  font-weight: 600;
  background: rgba(122,181,94,.1);
  padding: 3px 10px;
  border-radius: 999px;
}

/* ============ 最新信息 ============ */
.news-section { padding: 90px 0; background: var(--bg); }
.news-list { display: flex; flex-direction: column; gap: 20px; max-width: 960px; margin: 0 auto; }
.news-card {
  display: flex;
  gap: 24px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  transition: all var(--trans);
}
.news-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); border-color: rgba(14,110,107,.25); }
.news-thumb { width: 180px; min-width: 180px; aspect-ratio: 16 / 9; overflow: hidden; border-radius: var(--radius-md); }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s ease-out; }
.news-card:hover .news-thumb img { transform: scale(1.03); }
.news-body { flex: 1; display: flex; flex-direction: column; }
.news-tag {
  align-self: flex-start;
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  background: rgba(14,110,107,.08);
  padding: 3px 12px;
  border-radius: 6px;
  margin-bottom: 8px;
}
.news-body h3 { font-size: 18px; font-weight: 700; color: var(--secondary); line-height: 1.4; margin-bottom: 6px; transition: color var(--trans); }
.news-card:hover .news-body h3 { color: var(--primary); }
.news-body p { font-size: 14px; color: var(--text-light); line-height: 1.6; margin-bottom: 12px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-meta { display: flex; align-items: center; justify-content: space-between; margin-top: auto; }
.news-date { font-size: 13px; color: var(--text-light); }
.news-link { font-size: 14px; font-weight: 600; color: var(--primary); }
.news-card:hover .news-link { color: var(--accent); }
.news-empty {
  text-align: center;
  padding: 60px 20px;
  background: var(--white);
  border: 1px dashed var(--border);
  border-radius: 16px;
  color: var(--text-light);
  font-size: 15px;
}
.news-empty .empty-icon { font-size: 40px; display: block; margin-bottom: 12px; }

/* ============ FAQ ============ */
.faq-section { padding: 90px 0; background: var(--white); border-top: 1px solid var(--border); }
.faq-list { max-width: 780px; margin: 0 auto; }
.faq-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 4px 24px;
  margin-bottom: 12px;
  transition: all var(--trans);
}
.faq-item:hover { border-color: rgba(14,110,107,.2); }
.faq-item[open] { background: rgba(14,110,107,.02); box-shadow: var(--shadow-sm); }
.faq-item summary {
  padding: 16px 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--secondary);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  font-size: 24px;
  font-weight: 300;
  color: var(--primary);
  transition: transform var(--trans);
  flex-shrink: 0;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { padding: 0 0 18px; font-size: 15px; color: var(--text-light); line-height: 1.8; }

/* ============ CTA ============ */
.cta-section { padding: 90px 0; background: var(--secondary); }
.cta-box {
  background: linear-gradient(135deg, var(--secondary) 0%, #0D2A2A 50%, var(--primary-dark) 100%);
  border-radius: 24px;
  padding: 72px 48px;
  text-align: center;
  color: var(--white);
  position: relative;
  overflow: hidden;
  background-image: url('/assets/images/backpic/back-3.webp');
  background-size: cover;
  background-position: center;
}
.cta-box::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(18,51,50,.95), rgba(14,110,107,.82)); }
.cta-box > * { position: relative; z-index: 2; }
.cta-box h2 { font-size: 36px; font-weight: 800; margin-bottom: 16px; }
.cta-box p { font-size: 16px; color: rgba(255,255,255,.85); margin-bottom: 32px; }
.cta-trust { display: flex; gap: 28px; justify-content: center; flex-wrap: wrap; margin-top: 32px; }
.cta-trust span { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; color: rgba(255,255,255,.85); background: rgba(255,255,255,.1); padding: 6px 16px; border-radius: 999px; }

/* ============ 页脚 ============ */
.site-footer { background: var(--secondary); color: rgba(255,255,255,.8); padding: 64px 0 0; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.footer-brand .footer-logo { font-size: 24px; font-weight: 800; color: var(--white); display: block; margin-bottom: 14px; }
.footer-brand p { font-size: 14px; line-height: 1.7; color: rgba(255,255,255,.6); max-width: 260px; }
.footer-col h4 { font-size: 15px; font-weight: 700; color: var(--white); margin-bottom: 18px; }
.footer-col a, .footer-col span { display: block; font-size: 14px; color: rgba(255,255,255,.62); padding: 4px 0; transition: color var(--trans); }
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: rgba(255,255,255,.45);
}

/* ============ 回到顶部 ============ */
.back-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(14,110,107,.35);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all .25s ease-out;
  z-index: 999;
}
.back-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top:hover { background: var(--primary-dark); transform: translateY(-4px); }

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .hero { padding: 140px 0 80px; }
  .hero h1 { font-size: 40px; }
  .hero-row { flex-direction: column; gap: 40px; }
  .hero-right { justify-content: center; }
  .hero-card { width: 260px; }
  .featured-grid { grid-template-columns: repeat(2, 1fr); }
  .checklist-layout { flex-direction: column; gap: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .trust-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
}

@media (max-width: 768px) {
  .section-pad { padding: 56px 0; }
  .featured-section, .checklist-section, .testimonials-section, .news-section, .faq-section, .cta-section { padding: 60px 0; }
  .hero h1 { font-size: 32px; }
  .section-head h2 { font-size: 26px; }
  .cta-box { padding: 48px 24px; }
  .cta-box h2 { font-size: 28px; }
  .news-thumb { width: 120px; min-width: 120px; }
  .news-card { gap: 16px; padding: 14px; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .featured-grid { grid-template-columns: 1fr; }
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-tags { gap: 10px; }
  .hero-tags span { padding: 4px 10px; font-size: 12px; }
  .btn-hero { min-width: 100%; }
  .btn-outline { min-width: 100%; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .news-card { flex-direction: column; }
  .news-thumb { width: 100%; aspect-ratio: 16 / 9; }
  .cta-trust { gap: 12px; }
  .cta-trust span { font-size: 12px; padding: 4px 10px; }
  .back-top { bottom: 16px; right: 16px; }
}

/* ============ 打印/可访问性 ============ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

/* roulang page: category1 */
/* ====== 设计变量 ====== */
:root {
  --primary: #0E6E6B;
  --primary-dark: #0A5552;
  --primary-light: rgba(14, 110, 107, 0.08);
  --secondary: #123332;
  --accent: #E9A13B;
  --accent-light: rgba(233, 161, 59, 0.16);
  --bg-warm: #FAF8F5;
  --bg-light: #F0EFEA;
  --white: #FFFFFF;
  --text-main: #1D211F;
  --text-weak: #667370;
  --border: #E4E1DA;
  --danger: #F26A4E;
  --success: #7AB55E;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-btn: 10px;
  --shadow-sm: 0 2px 8px rgba(18, 51, 50, 0.06);
  --shadow-md: 0 4px 16px rgba(18, 51, 50, 0.08);
  --shadow-lg: 0 8px 28px rgba(18, 51, 50, 0.13);
  --transition: all 0.18s ease-out;
}

/* ====== 基础 Reset ====== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  background: var(--bg-warm);
  color: var(--text-main);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }
h1, h2, h3, h4 { line-height: 1.3; font-weight: 700; color: var(--secondary); }
h1 { font-size: 44px; }
h2 { font-size: 30px; margin-bottom: 12px; }
h3 { font-size: 20px; font-weight: 600; }
h4 { font-size: 17px; font-weight: 600; }
p { margin-bottom: 12px; }
section { position: relative; }

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

/* ====== 按钮体系 ====== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 44px; padding: 0 26px; border-radius: var(--radius-btn);
  font-weight: 600; font-size: 15px; line-height: 1.2;
  border: 1px solid transparent; transition: var(--transition);
  text-decoration: none;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 6px 16px rgba(14, 110, 107, 0.25); }
.btn-outline { background: transparent; border-color: var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary-light); color: var(--primary-dark); }
.btn-accent { background: var(--accent); color: var(--secondary); }
.btn-accent:hover { background: #F0B455; color: var(--secondary); transform: scale(1.02); box-shadow: 0 8px 20px rgba(233, 161, 59, 0.3); }
.btn:focus-visible { outline: 3px solid rgba(14, 110, 107, 0.3); outline-offset: 2px; }

/* ====== 徽章 / 标签 ====== */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 10px; border-radius: 6px; font-size: 12px; font-weight: 600;
}
.badge-orange { background: var(--accent-light); color: #B0771A; }
.badge-green { background: rgba(122, 181, 94, 0.15); color: #4F7D3C; }
.badge-primary { background: var(--primary-light); color: var(--primary); }
.tag {
  display: inline-block; padding: 2px 10px; border-radius: 6px;
  font-size: 12px; font-weight: 600; background: var(--bg-light); color: var(--text-weak);
}
.tag-hot { background: rgba(242, 106, 78, 0.12); color: #E05B3F; }
.tag-primary { background: var(--primary-light); color: var(--primary); }

/* ====== 悬浮胶囊导航 ====== */
.site-header {
  position: fixed; top: 14px; left: 0; right: 0; z-index: 1000;
  padding: 0 16px; pointer-events: none;
}
.site-header .container {
  display: flex; align-items: center; justify-content: space-between;
  background: rgba(250, 248, 245, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(18, 51, 50, 0.08);
  border-radius: 999px;
  padding: 10px 18px;
  box-shadow: 0 4px 24px rgba(18, 51, 50, 0.07);
  pointer-events: auto;
  max-width: 1200px;
  margin: 0 auto;
}
.brand-logo {
  font-size: 22px; font-weight: 800; color: var(--secondary);
  letter-spacing: -0.5px; white-space: nowrap;
}
.brand-logo:hover { color: var(--primary); }
.main-nav { display: flex; gap: 4px; align-items: center; }
.nav-link {
  padding: 8px 18px; border-radius: 999px; color: var(--text-main);
  font-weight: 500; font-size: 15px; white-space: nowrap;
}
.nav-link:hover { background: var(--primary-light); color: var(--primary); }
.nav-link.active { background: var(--primary-light); color: var(--primary); font-weight: 600; }
.nav-cta { margin-left: 4px; min-height: 38px; padding: 0 18px; font-size: 14px; }
.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  padding: 8px; border-radius: 8px;
}
.nav-toggle span {
  width: 22px; height: 2px; background: var(--secondary);
  border-radius: 2px; transition: var(--transition);
}
.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ====== Hero ====== */
.hero {
  position: relative; padding: 150px 0 84px;
  background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(18, 51, 50, 0.92) 20%, rgba(14, 110, 107, 0.72) 90%);
}
.hero .container {
  position: relative; z-index: 1;
  display: flex; align-items: center; gap: 48px;
}
.hero-content { flex: 1.15; }
.hero-visual { flex: 0.85; display: flex; justify-content: center; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(6px);
  padding: 6px 14px; border-radius: 999px;
  font-size: 13px; color: #fff; margin-bottom: 18px;
  font-weight: 500;
}
.hero h1 { color: #fff; font-size: 46px; margin-bottom: 18px; line-height: 1.25; }
.hero-sub {
  font-size: 17px; color: rgba(255, 255, 255, 0.88);
  max-width: 500px; margin-bottom: 30px; line-height: 1.75;
}
.hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-card {
  position: relative; width: 240px; border-radius: 20px; overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
  background: var(--secondary);
}
.hero-card img { width: 100%; height: 400px; object-fit: cover; opacity: 0.85; }
.hero-card-overlay {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 20px;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.72));
  color: #fff; font-size: 13px; line-height: 1.5;
}

/* ====== 信任数据条 ====== */
.stats-bar {
  background: var(--white); border-bottom: 1px solid var(--border);
  padding: 28px 0; box-shadow: var(--shadow-sm);
}
.stats-grid { display: flex; justify-content: space-around; flex-wrap: wrap; gap: 16px; }
.stat-item { text-align: center; padding: 8px 20px; }
.stat-num {
  font-size: 32px; font-weight: 800; color: var(--accent);
  font-variant-numeric: tabular-nums; line-height: 1.2;
}
.stat-label { font-size: 13px; color: var(--text-weak); margin-top: 4px; }

/* ====== 区块通用 ====== */
.section { padding: 84px 0; }
.section-alt { background: var(--bg-light); }
.section-head { max-width: 720px; margin-bottom: 44px; }
.section-head .section-sub { color: var(--text-weak); font-size: 16px; margin-top: 4px; }
.section-title { margin-bottom: 10px; }

/* ====== 分类说明区（图文两栏） ====== */
.guide-area { display: flex; align-items: center; gap: 48px; }
.guide-media { flex: 1; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-md); }
.guide-media img { width: 100%; height: 340px; object-fit: cover; }
.guide-content { flex: 1; }
.guide-content h2 { margin-bottom: 16px; }
.guide-content p { color: var(--text-main); margin-bottom: 14px; }
.guide-features { margin-top: 20px; display: grid; gap: 12px; }
.guide-feature { display: flex; align-items: flex-start; gap: 12px; }
.guide-icon {
  width: 32px; height: 32px; border-radius: 8px; flex-shrink: 0;
  background: var(--primary-light); color: var(--primary);
  display: flex; align-items: center; justify-content: center; font-size: 15px; font-weight: 700;
}

/* ====== 精选内容卡片网格 ====== */
.cards-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.content-card {
  background: var(--white); border-radius: var(--radius-lg);
  border: 1px solid var(--border); overflow: hidden;
  box-shadow: var(--shadow-sm); transition: var(--transition);
  display: flex; flex-direction: column;
}
.content-card:hover {
  box-shadow: var(--shadow-lg); transform: translateY(-4px);
  border-color: rgba(14, 110, 107, 0.3);
}
.card-cover { position: relative; overflow: hidden; aspect-ratio: 16 / 9; }
.card-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.25s ease; }
.content-card:hover .card-cover img { transform: scale(1.03); }
.card-cover .card-tag {
  position: absolute; top: 12px; left: 12px;
  background: rgba(18, 51, 50, 0.72); color: #fff;
  padding: 3px 10px; border-radius: 6px; font-size: 12px; font-weight: 600;
  backdrop-filter: blur(4px);
}
.card-body { padding: 20px 20px 24px; flex: 1; display: flex; flex-direction: column; }
.card-title { font-size: 17px; font-weight: 600; color: var(--secondary); margin-bottom: 8px; line-height: 1.4; }
.content-card:hover .card-title { color: var(--primary); }
.card-excerpt {
  font-size: 14px; color: var(--text-weak); line-height: 1.7;
  flex: 1; margin-bottom: 14px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.card-meta { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--text-weak); }
.card-meta .sep { width: 3px; height: 3px; border-radius: 50%; background: #C8C4BC; }

/* ====== 接入流程 ====== */
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.step-item {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 28px 24px;
  transition: var(--transition); position: relative;
}
.step-item:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.step-num {
  width: 40px; height: 40px; border-radius: 10px;
  border: 2px solid var(--primary); color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; font-weight: 700; margin-bottom: 16px;
  background: var(--primary-light);
}
.step-item h3 { margin-bottom: 8px; font-size: 17px; }
.step-item p { font-size: 14px; color: var(--text-weak); margin: 0; line-height: 1.65; }
.step-arrow {
  position: absolute; top: 50%; right: -16px; transform: translateY(-50%);
  color: #C8C4BC; font-size: 18px; z-index: 2; pointer-events: none;
}

/* ====== 口碑 / 评论条 ====== */
.testimonial-bar {
  background: var(--bg-light); padding: 64px 0;
}
.testimonial-scroll {
  display: flex; gap: 20px; overflow-x: auto; padding-bottom: 12px;
  scrollbar-width: thin; scrollbar-color: var(--border) transparent;
}
.testimonial-scroll::-webkit-scrollbar { height: 6px; }
.testimonial-scroll::-webkit-scrollbar-track { background: transparent; }
.testimonial-scroll::-webkit-scrollbar-thumb { background: var(--border); border-radius: 99px; }
.testimonial-card {
  min-width: 300px; max-width: 340px; flex-shrink: 0;
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 24px;
  box-shadow: var(--shadow-sm); transition: var(--transition);
}
.testimonial-card:hover { box-shadow: var(--shadow-md); }
.testimonial-card .stars { color: var(--accent); font-size: 15px; letter-spacing: 2px; margin-bottom: 12px; }
.testimonial-card p {
  font-size: 14px; line-height: 1.75; color: var(--text-main);
  margin-bottom: 18px; min-height: 44px;
}
.testimonial-card footer {
  display: flex; align-items: center; gap: 10px;
  border-top: 1px solid var(--bg-light); padding-top: 14px;
}
.avatar {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--primary-light); color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 15px; font-weight: 700; flex-shrink: 0;
}
.testimonial-card footer strong { font-size: 14px; color: var(--secondary); display: block; line-height: 1.3; }
.testimonial-card footer em { font-style: normal; font-size: 12px; color: var(--text-weak); }
.verified {
  margin-left: auto; display: inline-flex; align-items: center; gap: 3px;
  font-size: 12px; color: var(--success); font-weight: 600; white-space: nowrap;
}

/* ====== FAQ ====== */
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius-md); margin-bottom: 12px;
  overflow: hidden; transition: var(--transition);
}
.faq-item:hover { border-color: rgba(14, 110, 107, 0.25); }
.faq-question {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 22px; font-weight: 600; font-size: 16px; color: var(--secondary);
  cursor: pointer; width: 100%; text-align: left; transition: var(--transition);
}
.faq-question:hover { color: var(--primary); }
.faq-icon {
  width: 24px; height: 24px; border-radius: 50%;
  background: var(--bg-light); color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; font-weight: 600; flex-shrink: 0;
  transition: var(--transition);
}
.faq-item.active .faq-icon { background: var(--primary); color: #fff; }
.faq-answer {
  display: none; padding: 0 22px 18px; font-size: 15px;
  color: var(--text-main); line-height: 1.8; border-top: 1px dashed var(--border);
  padding-top: 14px;
}

/* ====== CTA ====== */
.cta-section { padding: 84px 0; }
.cta-box {
  background: linear-gradient(135deg, var(--accent) 0%, #E9A13B 55%, #F0B455 100%);
  border-radius: 24px; padding: 60px 48px;
  text-align: center; position: relative; overflow: hidden;
  box-shadow: 0 20px 50px rgba(233, 161, 59, 0.25);
}
.cta-box::before {
  content: ''; position: absolute; top: -60px; right: -60px;
  width: 200px; height: 200px; border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
}
.cta-box::after {
  content: ''; position: absolute; bottom: -80px; left: 20px;
  width: 160px; height: 160px; border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
}
.cta-box h2 { color: var(--secondary); font-size: 34px; margin-bottom: 12px; position: relative; z-index: 1; }
.cta-box > p { color: rgba(18, 51, 50, 0.8); font-size: 16px; margin-bottom: 28px; position: relative; z-index: 1; }
.cta-box .btn { position: relative; z-index: 1; background: var(--secondary); color: #fff; min-height: 48px; padding: 0 40px; }
.cta-box .btn:hover { background: #1A4A48; color: #fff; transform: scale(1.03); }
.cta-trust {
  display: flex; justify-content: center; gap: 24px; flex-wrap: wrap;
  margin-top: 28px; position: relative; z-index: 1;
}
.cta-trust span { display: inline-flex; align-items: center; gap: 5px; font-size: 13px; color: rgba(18, 51, 50, 0.75); font-weight: 500; }
.cta-trust .icon { width: 18px; height: 18px; border-radius: 50%; background: rgba(18, 51, 50, 0.15); display: inline-flex; align-items: center; justify-content: center; font-size: 11px; }

/* ====== 页脚 ====== */
.site-footer { background: var(--secondary); color: rgba(255, 255, 255, 0.75); padding: 64px 0 0; }
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px; padding-bottom: 40px; border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-logo { font-size: 24px; font-weight: 800; color: #fff; display: inline-block; margin-bottom: 12px; }
.footer-logo:hover { color: var(--accent); }
.footer-brand p { font-size: 14px; line-height: 1.75; margin-bottom: 16px; color: rgba(255, 255, 255, 0.6); }
.social-links { display: flex; gap: 10px; }
.social-icon {
  width: 36px; height: 36px; border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.18);
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; color: rgba(255, 255, 255, 0.7); transition: var(--transition);
}
.social-icon:hover { background: var(--accent); border-color: var(--accent); color: var(--secondary); }
.footer-col h4 {
  color: #fff; font-size: 15px; font-weight: 600;
  margin-bottom: 16px; letter-spacing: 0.3px;
}
.footer-col a {
  display: block; color: rgba(255, 255, 255, 0.6); font-size: 14px;
  padding: 5px 0; transition: var(--transition);
}
.footer-col a:hover { color: var(--accent); padding-left: 4px; }
.footer-col p { font-size: 14px; color: rgba(255, 255, 255, 0.6); margin-bottom: 6px; }
.footer-bottom {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 8px; padding: 24px 0;
  font-size: 13px; color: rgba(255, 255, 255, 0.4);
}

/* ====== 响应式 ====== */
@media (max-width: 1024px) {
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .step-arrow { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero { padding: 130px 0 60px; }
  .hero h1 { font-size: 36px; }
  .hero-card { display: none; }
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .main-nav {
    position: absolute; top: calc(100% + 10px); left: 16px; right: 16px;
    flex-direction: column; align-items: stretch; gap: 4px;
    background: rgba(250, 248, 245, 0.96); backdrop-filter: blur(14px);
    border: 1px solid var(--border); border-radius: 16px;
    padding: 12px; box-shadow: var(--shadow-lg);
    display: none;
  }
  .main-nav.open { display: flex; }
  .nav-link { padding: 12px 16px; border-radius: 10px; }
  .nav-cta { display: none; }
  .hero .container { flex-direction: column; gap: 24px; }
  .hero-content { width: 100%; }
  .hero h1 { font-size: 30px; }
  .hero-sub { font-size: 15px; }
  .stats-grid { gap: 8px; }
  .stat-num { font-size: 24px; }
  .section { padding: 56px 0; }
  .guide-area { flex-direction: column; gap: 24px; }
  .guide-media img { height: 240px; }
  .cards-grid { grid-template-columns: 1fr; gap: 16px; }
  .steps-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .step-item { padding: 20px 16px; }
  .testimonial-card { min-width: 260px; }
  .cta-box { padding: 40px 20px; }
  .cta-box h2 { font-size: 26px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { justify-content: center; text-align: center; }
  h1 { font-size: 30px; }
  h2 { font-size: 26px; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .steps-grid { grid-template-columns: 1fr; }
  .stat-item { padding: 6px 12px; }
  .stat-num { font-size: 22px; }
  .hero { padding: 110px 0 48px; }
  .hero-ctas { flex-direction: column; align-items: stretch; }
  .hero-ctas .btn { width: 100%; }
  .cta-trust { flex-direction: column; gap: 8px; }
}

/* roulang page: article */
:root {
  --teal: #0E6E6B;
  --teal-dark: #0A5552;
  --charcoal: #123332;
  --amber: #E9A13B;
  --amber-light: #F5B85A;
  --bg: #FAF8F5;
  --light: #F0EFEA;
  --white: #FFFFFF;
  --coral: #F26A4E;
  --lime: #7AB55E;
  --text: #2A3332;
  --text-weak: #6B7674;
  --border: #E4E1DA;
  --radius: 14px;
  --radius-sm: 8px;
  --radius-lg: 24px;
  --shadow: 0 2px 8px rgba(18,51,50,.06);
  --shadow-lg: 0 8px 24px rgba(18,51,50,.12);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--teal); text-decoration: none; transition: color .16s ease-out, background .16s ease-out, box-shadow .16s ease-out, border-color .16s ease-out, transform .16s ease-out; }
a:hover { color: var(--teal-dark); }
img { max-width: 100%; display: block; border: 0; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 84px 0; }
.section-alt { background: var(--light); }

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 26px;
  border-radius: 10px;
  min-height: 44px;
  font-weight: 600;
  font-size: 15px;
  line-height: 1.4;
  border: 1px solid transparent;
  transition: all .18s ease-out;
  white-space: nowrap;
}
.btn-primary { background: var(--teal); color: #fff; }
.btn-primary:hover { background: var(--teal-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 6px 16px rgba(14,110,107,.28); }
.btn-accent { background: var(--amber); color: var(--charcoal); border-color: var(--amber); }
.btn-accent:hover { background: var(--amber-light); color: var(--charcoal); transform: scale(1.02); box-shadow: 0 6px 16px rgba(233,161,59,.35); }
.btn-outline { background: transparent; color: var(--teal); border-color: var(--teal); }
.btn-outline:hover { background: rgba(14,110,107,.06); color: var(--teal-dark); transform: translateY(-2px); }
.btn-lg { padding: 15px 38px; font-size: 17px; border-radius: 12px; }

/* Header 悬浮胶囊导航 */
.site-header {
  position: fixed;
  top: 14px;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 16px;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: rgba(250, 248, 245, .88);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(18, 51, 50, .08);
  border-radius: 999px;
  padding: 10px 20px 10px 24px;
  box-shadow: var(--shadow);
}
.brand-logo { font-size: 22px; font-weight: 800; color: var(--charcoal); letter-spacing: -.2px; white-space: nowrap; }
.brand-logo span { color: var(--teal); }
.main-nav { display: flex; align-items: center; gap: 6px; }
.nav-link { display: inline-block; padding: 7px 16px; border-radius: 999px; font-weight: 500; color: var(--text); white-space: nowrap; }
.nav-link:hover { background: rgba(14, 110, 107, .08); color: var(--teal); }
.nav-link.active { background: rgba(14, 110, 107, .12); color: var(--teal); font-weight: 600; }
.nav-cta { padding: 8px 20px; border-radius: 999px; font-size: 14px; }
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: rgba(14, 110, 107, .06);
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: background .15s;
}
.nav-toggle:hover { background: rgba(14, 110, 107, .12); }
.nav-toggle span { display: block; width: 20px; height: 2px; background: var(--charcoal); border-radius: 2px; transition: transform .2s, opacity .2s; }
.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); }

/* 文章页头部 */
.article-header {
  background: linear-gradient(130deg, rgba(18, 51, 50, .96) 0%, rgba(14, 110, 107, .84) 60%, rgba(18, 51, 50, .72) 100%), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  padding: 156px 0 64px;
  color: #fff;
}
.article-header .container { max-width: 880px; }
.breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: 14px; color: rgba(255,255,255,.75); margin-bottom: 22px; }
.breadcrumb a { color: rgba(255,255,255,.85); }
.breadcrumb a:hover { color: var(--amber); }
.breadcrumb .sep { opacity: .6; }
.article-header h1 { font-size: 38px; line-height: 1.42; font-weight: 700; margin-bottom: 20px; letter-spacing: -.3px; }
.article-meta { display: flex; flex-wrap: wrap; gap: 14px 22px; font-size: 14px; color: rgba(255,255,255,.88); align-items: center; }
.meta-tag { display: inline-block; background: rgba(255,255,255,.16); padding: 4px 14px; border-radius: 999px; font-weight: 500; color: #fff; }
.meta-dot { width: 4px; height: 4px; border-radius: 50%; background: rgba(255,255,255,.4); }

/* 正文区 */
.article-body { padding: 60px 0 48px; }
.article-body .container { max-width: 820px; }
.article-content {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 48px 52px;
  box-shadow: var(--shadow);
}
.article-content p { margin-bottom: 20px; line-height: 1.95; font-size: 16.5px; color: #33413F; }
.article-content h2 { font-size: 27px; font-weight: 700; color: var(--charcoal); margin: 40px 0 18px; line-height: 1.4; }
.article-content h3 { font-size: 22px; font-weight: 600; color: var(--charcoal); margin: 32px 0 14px; line-height: 1.45; }
.article-content h4 { font-size: 18px; font-weight: 600; color: var(--charcoal); margin: 24px 0 10px; }
.article-content ul, .article-content ol { padding-left: 22px; margin: 18px 0 22px; }
.article-content ul { list-style: disc; }
.article-content ol { list-style: decimal; }
.article-content li { margin-bottom: 8px; line-height: 1.8; }
.article-content img { border-radius: 12px; margin: 26px 0; }
.article-content blockquote {
  border-left: 3px solid var(--teal);
  background: rgba(14, 110, 107, .05);
  padding: 16px 22px;
  border-radius: 10px;
  margin: 26px 0;
  color: #4A5755;
}
.article-content blockquote p { margin-bottom: 0; }
.article-content a { font-weight: 500; border-bottom: 1px solid rgba(14,110,107,.3); }
.article-content a:hover { border-bottom-color: var(--teal); }
.article-empty {
  background: var(--white);
  border: 1px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 70px 20px;
  text-align: center;
  box-shadow: var(--shadow);
}
.article-empty p { font-size: 18px; color: var(--text-weak); margin-bottom: 20px; }

/* 文末上一篇/下一篇 */
.article-pager {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 36px;
  flex-wrap: wrap;
}
.pager-link {
  flex: 1;
  min-width: 200px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 22px;
  transition: all .16s ease-out;
  display: block;
}
.pager-link:hover { border-color: var(--teal); box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.pager-link .pager-label { display: block; font-size: 13px; color: var(--text-weak); margin-bottom: 2px; }
.pager-link .pager-title { display: block; font-size: 16px; font-weight: 600; color: var(--charcoal); }
.pager-link.next { text-align: right; }
.pager-back { display: inline-flex; align-items: center; justify-content: center; padding: 12px 20px; border-radius: 10px; background: var(--light); border: 1px solid var(--border); color: var(--text); font-weight: 500; font-size: 14px; }
.pager-back:hover { background: rgba(14, 110, 107, .08); color: var(--teal); border-color: var(--teal); }

/* 相关推荐区 */
.related-section { padding: 70px 0; background: var(--light); }
.related-section .section-head { margin-bottom: 34px; }
.related-section .section-eyebrow { font-size: 14px; color: var(--teal); font-weight: 600; letter-spacing: .5px; margin-bottom: 6px; }
.related-section h2 { font-size: 30px; font-weight: 700; color: var(--charcoal); }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.related-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: all .18s ease-out;
  display: block;
  color: var(--text);
}
.related-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: rgba(14, 110, 107, .3); color: var(--text); }
.related-card .cover { aspect-ratio: 16 / 9; overflow: hidden; }
.related-card .cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .2s ease-out; }
.related-card:hover .cover img { transform: scale(1.03); }
.related-body { padding: 18px 20px 20px; }
.related-body .related-cat { display: inline-block; font-size: 12px; font-weight: 600; color: var(--teal); background: rgba(14,110,107,.08); padding: 3px 10px; border-radius: 999px; margin-bottom: 10px; }
.related-body h3 { font-size: 17px; font-weight: 600; color: var(--charcoal); line-height: 1.5; margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-time { font-size: 13px; color: var(--text-weak); }

/* CTA */
.cta-section { padding: 72px 0; }
.cta-box {
  background: linear-gradient(120deg, var(--charcoal) 0%, #1C4B47 65%, var(--teal) 100%);
  border-radius: var(--radius-lg);
  padding: 60px 48px;
  color: #fff;
  text-align: center;
  box-shadow: var(--shadow-lg);
}
.cta-box h2 { font-size: 32px; font-weight: 700; margin-bottom: 12px; color: #fff; }
.cta-box p { font-size: 16px; color: rgba(255,255,255,.75); max-width: 520px; margin: 0 auto 26px; }
.cta-trust { display: flex; justify-content: center; gap: 20px; flex-wrap: wrap; margin-top: 22px; font-size: 14px; color: rgba(255,255,255,.7); }
.cta-trust span { display: inline-flex; align-items: center; gap: 6px; }

/* Footer */
.site-footer { background: var(--charcoal); color: rgba(255,255,255,.8); padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 44px; }
.site-footer .brand-logo { color: #fff; font-size: 24px; }
.site-footer .brand-logo span { color: var(--amber); }
.footer-brand p { font-size: 14px; color: rgba(255,255,255,.6); margin-top: 12px; max-width: 260px; line-height: 1.7; }
.site-footer h4 { font-size: 15px; font-weight: 600; color: #fff; margin-bottom: 14px; }
.footer-links a, .footer-contact p { display: block; font-size: 14px; color: rgba(255,255,255,.65); margin-bottom: 8px; }
.footer-links a:hover { color: var(--amber); }
.footer-contact p { margin-bottom: 6px; line-height: 1.7; }
.footer-cert {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 14px;
  padding: 10px 14px;
  margin-top: 8px;
}
.footer-cert .avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--teal);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
}
.footer-cert strong { display: block; font-size: 13px; color: #fff; line-height: 1.3; }
.footer-cert em { font-style: normal; font-size: 12px; color: rgba(255,255,255,.55); }
.footer-cert .verified { font-size: 12px; color: var(--lime); display: inline-flex; align-items: center; gap: 4px; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 22px 0;
  font-size: 13px;
  color: rgba(255,255,255,.45);
}

/* 响应式 */
@media (max-width: 1024px) {
  .article-header h1 { font-size: 32px; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  .main-nav {
    position: absolute;
    top: calc(100% + 12px);
    left: 24px;
    right: 24px;
    background: rgba(250, 248, 245, .96);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    border-radius: 18px;
    border: 1px solid rgba(18, 51, 50, .08);
    box-shadow: var(--shadow-lg);
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
    gap: 6px;
    display: none;
    z-index: 90;
  }
  .main-nav.open { display: flex; }
  .nav-link { padding: 13px 18px; border-radius: 12px; font-size: 15px; }
  .site-header .container { padding: 10px 16px; }
  .article-header { padding: 130px 0 48px; }
  .article-header h1 { font-size: 27px; }
  .article-content { padding: 28px 22px; }
  .article-pager { flex-direction: column; }
  .pager-link { min-width: 100%; }
  .pager-link.next { text-align: left; }
  .related-grid { grid-template-columns: 1fr; }
  .cta-box { padding: 42px 20px; }
  .cta-box h2 { font-size: 26px; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-bottom { justify-content: center; text-align: center; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .article-header h1 { font-size: 24px; }
  .article-meta { gap: 10px; font-size: 13px; }
  .article-content p { font-size: 15.5px; }
  .btn-lg { padding: 14px 28px; font-size: 16px; }
}

/* Focus 可访问性 */
a:focus-visible, button:focus-visible {
  outline: 3px solid rgba(14, 110, 107, .35);
  outline-offset: 2px;
}

/* 通用辅助 */
.text-center { text-align: center; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }

/* roulang page: category2 */
:root {
            --primary: #0E6E6B;
            --primary-dark: #0A5552;
            --secondary: #123332;
            --accent: #E9A13B;
            --accent-light: #F5B85E;
            --coral: #F26A4E;
            --green: #7AB55E;
            --bg: #FAF8F5;
            --bg-light: #F0EFEA;
            --white: #FFFFFF;
            --text: #2A2A2A;
            --text-light: #6B6B6B;
            --border: #E4E1DA;
            --radius-lg: 16px;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow: 0 2px 8px rgba(18, 51, 50, .06);
            --shadow-hover: 0 8px 24px rgba(18, 51, 50, .12);
            --transition: all .18s ease-out;
            --container: 1160px;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: var(--primary);
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            display: block;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-header {
            position: fixed;
            top: 14px;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 0 20px;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(250, 248, 245, .85);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid rgba(18, 51, 50, .08);
            border-radius: 999px;
            padding: 10px 20px;
            box-shadow: 0 4px 20px rgba(18, 51, 50, .06);
            max-width: 1180px;
        }
        .brand-logo {
            font-size: 22px;
            font-weight: 800;
            color: var(--secondary);
            letter-spacing: -0.01em;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }
        .brand-logo::before {
            content: "";
            width: 26px;
            height: 26px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            flex-shrink: 0;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            margin-left: auto;
            margin-right: 16px;
        }
        .nav-link {
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            transition: var(--transition);
            line-height: 1.4;
        }
        .nav-link:hover {
            background: rgba(14, 110, 107, .08);
            color: var(--primary);
        }
        .nav-link.active {
            background: rgba(14, 110, 107, .12);
            color: var(--primary);
            font-weight: 600;
        }
        .nav-cta {
            padding: 10px 20px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 700;
            white-space: nowrap;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(14, 110, 107, .08);
        }
        .nav-toggle span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--secondary);
            border-radius: 2px;
            transition: 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);
        }
        .page-hero {
            position: relative;
            padding: 160px 0 80px;
            background: linear-gradient(135deg, rgba(18, 51, 50, .9), rgba(14, 110, 107, .75));
            background-size: cover;
            background-position: center;
            color: var(--white);
        }
        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(18, 51, 50, .55), rgba(18, 51, 50, .35));
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, .85);
            margin-bottom: 20px;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, .85);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb .sep {
            opacity: .5;
        }
        .page-hero h1 {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
            color: var(--white);
            letter-spacing: -0.02em;
        }
        .page-hero-desc {
            font-size: 18px;
            line-height: 1.7;
            max-width: 560px;
            color: rgba(255, 255, 255, .9);
        }
        .page-hero-tags {
            display: flex;
            gap: 10px;
            margin-top: 24px;
            flex-wrap: wrap;
        }
        .page-hero-tags .tag {
            padding: 6px 14px;
            border-radius: 999px;
            background: rgba(255, 255, 255, .15);
            border: 1px solid rgba(255, 255, 255, .2);
            font-size: 13px;
            color: var(--white);
            backdrop-filter: blur(4px);
        }
        section {
            padding: 80px 0;
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .08em;
            text-transform: uppercase;
            color: var(--primary);
            background: rgba(14, 110, 107, .08);
            padding: 4px 12px;
            border-radius: 999px;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 32px;
            font-weight: 700;
            color: var(--secondary);
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-light);
            max-width: 640px;
            margin-bottom: 40px;
            line-height: 1.8;
        }
        .cat-intro {
            background: var(--white);
            border-bottom: 1px solid var(--border);
        }
        .cat-intro-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 60px;
            align-items: center;
        }
        .cat-intro-text .section-title {
            margin-bottom: 20px;
        }
        .cat-intro-text p {
            margin-bottom: 16px;
            color: var(--text-light);
            line-height: 1.9;
        }
        .cat-intro-text ul {
            margin-top: 20px;
            display: grid;
            gap: 12px;
        }
        .cat-intro-text li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 15px;
            color: var(--text);
            line-height: 1.6;
        }
        .cat-intro-text li::before {
            content: "✓";
            color: var(--green);
            font-weight: 700;
            font-size: 14px;
            flex-shrink: 0;
            margin-top: 2px;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: rgba(122, 181, 94, .12);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .cat-intro-media {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            position: relative;
            aspect-ratio: 4/3;
        }
        .cat-intro-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .cat-intro-media::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(18, 51, 50, .15));
        }
        .cat-cards {
            background: var(--bg);
        }
        .cat-card-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .cat-card {
            display: flex;
            background: var(--white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
            box-shadow: var(--shadow);
        }
        .cat-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(14, 110, 107, .3);
        }
        .cat-card-img {
            width: 46%;
            min-height: 200px;
            position: relative;
            overflow: hidden;
            flex-shrink: 0;
        }
        .cat-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .3s ease-out;
        }
        .cat-card:hover .cat-card-img img {
            transform: scale(1.03);
        }
        .cat-card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(18, 51, 50, .8);
            color: var(--white);
            font-size: 12px;
            padding: 4px 12px;
            border-radius: 999px;
            backdrop-filter: blur(4px);
            z-index: 2;
        }
        .cat-card-content {
            padding: 24px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .cat-card-content h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .cat-card-content p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .cat-card-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            margin-top: auto;
        }
        .cat-card-link:hover {
            color: var(--primary-dark);
            gap: 8px;
        }
        .cat-features {
            background: var(--white);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--bg);
            border-radius: var(--radius);
            padding: 36px 28px;
            border: 1px solid var(--border);
            transition: var(--transition);
            text-align: center;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: rgba(14, 110, 107, .25);
        }
        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(14, 110, 107, .1), rgba(14, 110, 107, .04));
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 24px;
        }
        .feature-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 8px;
        }
        .feature-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
        }
        .cat-scenes {
            background: var(--bg-light);
        }
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .scene-card {
            background: var(--white);
            border-radius: var(--radius);
            padding: 32px 28px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .scene-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .scene-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: rgba(233, 161, 59, .12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 16px;
        }
        .scene-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 8px;
        }
        .scene-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
        }
        .faq-section {
            background: var(--bg);
        }
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(14, 110, 107, .2);
        }
        .faq-item.active {
            border-color: rgba(14, 110, 107, .3);
            box-shadow: var(--shadow);
        }
        .faq-q {
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 16px;
            font-weight: 600;
            color: var(--secondary);
            cursor: pointer;
            background: none;
            width: 100%;
            text-align: left;
            line-height: 1.5;
        }
        .faq-q .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(14, 110, 107, .08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--primary);
            flex-shrink: 0;
            transition: var(--transition);
            font-weight: 400;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: var(--white);
        }
        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height .25s ease-out;
        }
        .faq-a-inner {
            padding: 0 24px 20px;
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.8;
        }
        .cta-section {
            position: relative;
            padding: 80px 0;
            background: linear-gradient(135deg, var(--secondary), #1A4A46);
            color: var(--white);
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            top: -40%;
            right: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(233, 161, 59, .08);
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 12px;
            color: var(--white);
            line-height: 1.3;
        }
        .cta-inner p {
            font-size: 16px;
            color: rgba(255, 255, 255, .85);
            margin-bottom: 32px;
            line-height: 1.7;
        }
        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            border-radius: 12px;
            background: var(--accent);
            color: var(--secondary);
            font-size: 16px;
            font-weight: 700;
            transition: var(--transition);
            min-height: 48px;
            line-height: 1;
        }
        .cta-btn:hover {
            background: var(--accent-light);
            transform: scale(1.02);
            color: var(--secondary);
            box-shadow: 0 8px 24px rgba(233, 161, 59, .3);
        }
        .cta-trust {
            display: flex;
            justify-content: center;
            gap: 32px;
            margin-top: 28px;
            flex-wrap: wrap;
        }
        .cta-trust span {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: rgba(255, 255, 255, .75);
        }
        .cta-trust span::before {
            content: "✓";
            display: flex;
            align-items: center;
            justify-content: center;
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: var(--green);
            color: var(--white);
            font-size: 11px;
            font-weight: 700;
        }
        .site-footer {
            background: var(--secondary);
            color: rgba(255, 255, 255, .85);
            padding: 60px 0 32px;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand {
            max-width: 320px;
        }
        .footer-brand .brand-logo {
            color: var(--white);
            margin-bottom: 12px;
            display: inline-flex;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, .6);
            margin-top: 10px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 16px;
        }
        .footer-col ul {
            display: grid;
            gap: 8px;
        }
        .footer-col a {
            color: rgba(255, 255, 255, .6);
            font-size: 14px;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-contact {
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
            line-height: 1.8;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, .4);
        }
        .footer-bottom .icp {
            color: rgba(255, 255, 255, .4);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            font-weight: 600;
            transition: var(--transition);
            border: none;
            cursor: pointer;
            text-align: center;
            line-height: 1.4;
        }
        .btn:focus-visible,
        .nav-link:focus-visible,
        .faq-q:focus-visible {
            outline: 3px solid rgba(14, 110, 107, .35);
            outline-offset: 2px;
        }
        .btn-accent {
            background: var(--accent);
            color: var(--secondary);
            font-size: 14px;
            font-weight: 700;
            padding: 10px 22px;
            border-radius: 999px;
        }
        .btn-accent:hover {
            background: var(--accent-light);
            transform: translateY(-1px);
            color: var(--secondary);
            box-shadow: 0 4px 12px rgba(233, 161, 59, .3);
        }
        .btn-primary-outline {
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
            padding: 12px 28px;
            font-size: 15px;
        }
        .btn-primary-outline:hover {
            background: rgba(14, 110, 107, .06);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
        }
        @media (max-width: 1024px) {
            .cat-intro-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .feature-grid {
                grid-template-columns: 1fr 1fr;
            }
            .scene-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-top {
                grid-template-columns: 1.2fr 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 768px) {
            .site-header {
                top: 8px;
                padding: 0 12px;
            }
            .site-header .container {
                padding: 8px 14px;
                border-radius: 20px;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: calc(100% + 8px);
                left: 12px;
                right: 12px;
                background: rgba(250, 248, 245, .96);
                backdrop-filter: blur(14px);
                border-radius: 16px;
                padding: 12px;
                flex-direction: column;
                align-items: stretch;
                box-shadow: 0 12px 32px rgba(18, 51, 50, .12);
                border: 1px solid rgba(18, 51, 50, .08);
                gap: 4px;
            }
            .main-nav.open {
                display: flex;
            }
            .nav-link {
                padding: 12px 16px;
                border-radius: 10px;
                font-size: 16px;
            }
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .page-hero {
                padding: 120px 0 60px;
            }
            .page-hero h1 {
                font-size: 32px;
            }
            .page-hero-desc {
                font-size: 16px;
            }
            section {
                padding: 56px 0;
            }
            .section-title {
                font-size: 26px;
            }
            .cat-card-grid {
                grid-template-columns: 1fr;
            }
            .cat-card {
                flex-direction: column;
            }
            .cat-card-img {
                width: 100%;
                min-height: 180px;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .scene-grid {
                grid-template-columns: 1fr;
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .cat-features,
            .cat-scenes {
                padding: 48px 0;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .site-header .container {
                padding: 8px 12px;
            }
            .brand-logo {
                font-size: 18px;
            }
            .page-hero h1 {
                font-size: 26px;
            }
            .page-hero-desc {
                font-size: 15px;
            }
            .section-title {
                font-size: 22px;
            }
            .cat-card-content {
                padding: 18px;
            }
            .cta-inner h2 {
                font-size: 26px;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-trust {
                flex-direction: column;
                align-items: center;
                gap: 12px;
            }
        }