/* roulang page: index */
:root {
  --brand: #0d4d4c;
  --brand-deep: #083534;
  --brand-soft: #e7efee;
  --accent: #c7a76a;
  --accent-deep: #a98c52;
  --bg: #f8f7f4;
  --surface: #ffffff;
  --bg-deep: #0e3b3a;
  --text: #152b2d;
  --text-2: #5d7374;
  --text-3: #93a5a6;
  --border: rgba(13, 77, 76, 0.16);
  --radius: 8px;
  --radius-lg: 12px;
  --shadow-1: 0 1px 3px rgba(14, 59, 58, 0.08);
  --shadow-2: 0 8px 24px rgba(14, 59, 58, 0.10);
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: var(--font-sans); background: var(--bg); color: var(--text); font-size: 15px; line-height: 1.75; -webkit-font-smoothing: antialiased; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
button { border: none; background: none; cursor: pointer; font-family: inherit; }
input, select, textarea { font-family: inherit; }

h1, h2, h3, .font-serif { font-family: var(--font-serif); }
h1 { font-size: clamp(2.4rem, 5.5vw, 4rem); line-height: 1.15; font-weight: 700; letter-spacing: 0.02em; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.5rem); line-height: 1.25; font-weight: 600; letter-spacing: 0.01em; }
h3 { font-size: 1.15rem; font-weight: 600; line-height: 1.4; }

.container { max-width: 1280px; margin: 0 auto; padding: 0 1.5rem; }
.section { padding: 5rem 1.5rem; }
.section-tag { display: inline-block; font-size: 0.8rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent-deep); margin-bottom: 1rem; }
.btn-primary { display: inline-flex; align-items: center; justify-content: center; height: 48px; padding: 0 2rem; background: var(--accent); color: var(--brand-deep); border-radius: 8px; font-weight: 600; font-size: 0.95rem; transition: all 0.3s ease-out; border: 1px solid transparent; }
.btn-primary:hover { background: var(--accent-deep); transform: translateY(-2px); box-shadow: var(--shadow-2); }
.btn-outline-light { display: inline-flex; align-items: center; justify-content: center; height: 48px; padding: 0 2rem; background: transparent; color: #fff; border: 1.5px solid rgba(255,255,255,0.7); border-radius: 8px; font-weight: 500; font-size: 0.95rem; transition: all 0.3s ease-out; }
.btn-outline-light:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.badge { display: inline-block; padding: 4px 12px; font-size: 0.75rem; font-weight: 500; border-radius: 9999px; background: transparent; border: 1px solid var(--accent); color: var(--accent-deep); white-space: nowrap; }

/* Sidebar */
.sidebar { position: fixed; top: 0; left: 0; width: 264px; height: 100vh; background: var(--bg); border-right: 1px solid var(--border); display: flex; flex-direction: column; z-index: 50; }
.sidebar-logo { display: flex; align-items: center; gap: 0.75rem; padding: 1.75rem 1.5rem; border-bottom: 1px solid var(--border); }
.logo-icon { width: 40px; height: 40px; border-radius: 8px; background: var(--brand); display: flex; align-items: center; justify-content: center; color: var(--accent); font-size: 1.1rem; font-weight: 700; }
.logo-name { font-size: 1.1rem; font-weight: 700; color: var(--brand-deep); font-family: var(--font-serif); line-height: 1.2; }
.logo-sub { font-size: 0.7rem; color: var(--text-3); letter-spacing: 0.08em; }
.side-nav { flex: 1; padding: 1.5rem 1rem; display: flex; flex-direction: column; gap: 0.15rem; }
.nav-link { position: relative; display: block; padding: 0.75rem 1rem; font-size: 0.95rem; font-weight: 500; color: var(--text-2); border-radius: 6px; transition: all 0.3s ease-out; }
.nav-link::before { content: ''; position: absolute; left: 0; top: 50%; transform: translateY(-50%); width: 4px; height: 0; background: var(--accent); border-radius: 0 3px 3px 0; transition: height 0.3s ease-out; }
.nav-link:hover { color: var(--text); transform: translateX(4px); }
.nav-link.active { color: var(--text); font-weight: 600; background: rgba(13,77,76,0.04); }
.nav-link.active::before { height: 20px; }
.sidebar-contact { padding: 1.5rem; border-top: 1px solid var(--border); }
.sidebar-contact .phone { font-size: 1.15rem; font-weight: 700; color: var(--brand-deep); letter-spacing: 0.02em; }
.sidebar-contact .email { font-size: 0.8rem; color: var(--text-3); margin-top: 0.25rem; }
.social-row { display: flex; gap: 0.5rem; margin-top: 0.85rem; }
.social-icon { width: 34px; height: 34px; border-radius: 8px; border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; font-size: 0.7rem; color: var(--text-2); transition: all 0.3s ease-out; }
.social-icon:hover { border-color: var(--accent); color: var(--accent-deep); }

/* Mobile header */
.mobile-header { display: none; position: fixed; top: 0; left: 0; right: 0; height: 64px; background: var(--bg); border-bottom: 1px solid var(--border); z-index: 50; padding: 0 1rem; align-items: center; justify-content: space-between; }
.hamburger { width: 40px; height: 40px; display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 6px; }
.hamburger span { width: 22px; height: 2px; background: var(--text); display: block; }
.mobile-logo { font-family: var(--font-serif); font-weight: 700; font-size: 1.05rem; color: var(--brand-deep); }
.mobile-btn { background: var(--accent); color: var(--brand-deep); font-size: 0.85rem; font-weight: 600; padding: 0.45rem 0.9rem; border-radius: 8px; transition: background 0.3s; }
.mobile-btn:hover { background: var(--accent-deep); }

/* Drawer */
.drawer-overlay { display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(8,53,52,0.45); z-index: 90; }
.drawer-overlay.show { display: block; }
.drawer { position: fixed; top: 0; left: 0; width: 280px; height: 100vh; background: var(--surface); z-index: 100; transform: translateX(-100%); transition: transform 0.35s ease-out; display: flex; flex-direction: column; }
.drawer.show { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; padding: 1.25rem 1.5rem; border-bottom: 1px solid var(--border); }
.drawer-head span { font-family: var(--font-serif); font-weight: 700; color: var(--brand-deep); }
.drawer-close { font-size: 1.2rem; color: var(--text-2); }
.drawer-nav { flex: 1; padding: 1.25rem; display: flex; flex-direction: column; gap: 0.25rem; }
.drawer-nav a { padding: 0.85rem 1rem; font-size: 0.95rem; font-weight: 500; color: var(--text); border-radius: 8px; transition: all 0.3s; }
.drawer-nav a:hover { background: var(--brand-soft); color: var(--brand-deep); }
.drawer-contact { padding: 1.5rem; border-top: 1px solid var(--border); font-size: 0.85rem; color: var(--text-2); }

/* Main wrap */
.main-wrap { margin-left: 264px; min-height: 100vh; display: flex; flex-direction: column; }
main { flex: 1; }

/* Hero */
.hero { position: relative; min-height: 640px; display: flex; align-items: center; background-image: url('/assets/images/backpic/back-1.png'); background-size: cover; background-position: center; }
.hero::before { content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: linear-gradient(90deg, rgba(13,77,76,0.85), rgba(8,53,52,0.30)); }
.hero-content { position: relative; max-width: 660px; padding: 4rem 3rem; color: #fff; }
.hero-tag { display: inline-block; font-size: 0.8rem; font-weight: 600; letter-spacing: 0.16em; color: var(--accent); text-transform: uppercase; margin-bottom: 1.5rem; border: 1px solid rgba(199,167,106,0.4); padding: 0.35rem 1rem; border-radius: 9999px; }
.hero-subtitle { font-size: 1.125rem; line-height: 1.7; color: rgba(255,255,255,0.82); margin: 1.5rem 0 2rem; max-width: 520px; }
.hero-cta { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 3rem; }
.hero-stats { display: flex; gap: 2rem; border-top: 1px solid rgba(255,255,255,0.2); padding-top: 1.5rem; flex-wrap: wrap; }
.stat-item { display: flex; flex-direction: column; }
.stat-num { font-size: 2rem; font-weight: 700; font-family: var(--font-serif); color: #fff; line-height: 1.1; font-feature-settings: "tnum"; }
.stat-label { font-size: 0.75rem; color: rgba(255,255,255,0.65); margin-top: 0.25rem; letter-spacing: 0.04em; }

/* Feature list */
.feature-list { margin-top: 1.5rem; display: flex; flex-direction: column; }
.feature-item { display: flex; gap: 1rem; padding: 1.1rem 0; border-bottom: 1px solid var(--border); transition: all 0.3s; }
.feature-item:last-child { border-bottom: none; }
.feature-icon { flex-shrink: 0; width: 42px; height: 42px; border-radius: 10px; background: var(--brand-soft); display: flex; align-items: center; justify-content: center; color: var(--accent-deep); font-size: 1.1rem; transition: all 0.3s; }
.feature-item:hover .feature-icon { background: var(--accent); color: #fff; }
.feature-content h3 { font-size: 1.05rem; color: var(--text); }
.feature-content p { font-size: 0.85rem; color: var(--text-2); margin-top: 0.25rem; }
.phone-mock { border-radius: 16px; background: var(--surface); box-shadow: var(--shadow-2); border: 1px solid var(--border); overflow: hidden; padding: 1rem; }
.phone-mock img { width: 100%; height: 400px; object-fit: cover; border-radius: 10px; }

/* Carousel */
.carousel-wrap { position: relative; overflow: hidden; padding: 1rem 0; }
.carousel-track { display: flex; gap: 1.5rem; transition: transform 0.4s ease-out; }
.carousel-card { flex: 1 0 0; min-width: 0; background: var(--surface); border-radius: var(--radius-lg); border: 1px solid var(--border); overflow: hidden; transition: all 0.3s ease-out; opacity: 0.65; transform: scale(0.97); }
.carousel-card.active { opacity: 1; transform: scale(1.01); box-shadow: var(--shadow-2); }
.carousel-card img { width: 100%; height: 280px; object-fit: cover; }
.carousel-card .carousel-name { padding: 1rem 1.25rem; font-size: 0.9rem; font-weight: 600; color: var(--text); text-align: center; }
.carousel-arrow { position: absolute; top: 45%; transform: translateY(-50%); width: 36px; height: 36px; border-radius: 50%; background: var(--surface); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; color: var(--text-2); transition: all 0.3s; z-index: 5; }
.carousel-arrow:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.carousel-prev { left: -10px; }
.carousel-next { right: -10px; }
.carousel-dots { display: flex; justify-content: center; gap: 0.5rem; margin-top: 1.5rem; }
.carousel-dot { width: 8px; height: 8px; border-radius: 9999px; background: rgba(13,77,76,0.25); transition: all 0.3s; }
.carousel-dot.active { width: 20px; background: var(--accent); }

/* Conditions */
.conditions-list { display: flex; flex-direction: column; max-width: 820px; margin: 2rem auto 0; }
.condition-row { display: flex; align-items: center; gap: 1.5rem; padding: 1.5rem 1rem; border-bottom: 1px solid var(--border); transition: all 0.3s; }
.condition-row:last-child { border-bottom: none; }
.condition-num { font-family: var(--font-serif); font-size: 2.4rem; font-weight: 700; color: rgba(13,77,76,0.25); width: 72px; flex-shrink: 0; transition: color 0.3s; }
.condition-row:hover .condition-num { color: var(--accent); }
.condition-title { font-size: 1.05rem; font-weight: 600; color: var(--text); min-width: 130px; }
.condition-desc { flex: 1; font-size: 0.88rem; color: var(--text-2); padding: 0 1rem; }
.condition-badge { flex-shrink: 0; }

/* Reviews */
.reviews-section { background: var(--bg-deep); color: #fff; }
.reviews-section h2 { color: #fff; }
.reviews-summary { display: flex; align-items: center; gap: 1.5rem; margin: 1.5rem 0 2.5rem; }
.reviews-score { font-size: 3.2rem; font-weight: 700; font-family: var(--font-serif); color: var(--accent); line-height: 1; }
.reviews-stars { display: flex; gap: 0.2rem; color: var(--accent); font-size: 1rem; }
.reviews-count { font-size: 0.85rem; color: rgba(255,255,255,0.6); margin-top: 0.35rem; }
.reviews-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.review-card { background: rgba(255,255,255,0.06); border-radius: 12px; padding: 1.75rem; transition: filter 0.3s ease-out; }
.review-card:hover { filter: brightness(1.08); }
.review-avatar { width: 44px; height: 44px; border-radius: 50%; background: rgba(255,255,255,0.2); display: flex; align-items: center; justify-content: center; font-size: 1rem; font-weight: 700; color: #fff; margin-bottom: 1rem; }
.review-name { font-size: 0.95rem; font-weight: 600; }
.review-years { font-size: 0.78rem; color: rgba(255,255,255,0.5); }
.review-text { font-size: 0.88rem; line-height: 1.7; color: rgba(255,255,255,0.82); margin: 1rem 0; }
.review-stars { color: var(--accent); font-size: 0.8rem; }

/* Downloads */
.download-buttons { display: flex; justify-content: center; gap: 1rem; margin-top: 2rem; flex-wrap: wrap; }
.download-btn { display: flex; align-items: center; gap: 0.75rem; height: 52px; padding: 0 1.75rem; border-radius: 8px; transition: all 0.3s; border: 1px solid transparent; }
.download-btn-dark { background: var(--text); color: #fff; }
.download-btn-dark:hover { background: #1a2a2d; }
.download-btn-light { background: var(--surface); border-color: var(--border); color: var(--text); }
.download-btn-light:hover { border-color: var(--accent); }
.download-icon { font-size: 1.1rem; line-height: 1; }
.download-label-top { font-size: 0.65rem; opacity: 0.7; display: block; line-height: 1.2; }
.download-label { font-size: 0.9rem; font-weight: 600; display: block; line-height: 1.2; }
.web-entry { display: inline-block; margin-top: 1rem; font-size: 0.8rem; color: var(--text-2); text-decoration: underline; }

/* News */
.news-layout { display: grid; grid-template-columns: 1.1fr 1fr; gap: 2rem; margin-top: 2rem; }
.news-featured-card { background: var(--surface); border-radius: var(--radius-lg); border: 1px solid var(--border); overflow: hidden; display: block; transition: all 0.3s; }
.news-featured-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-2); }
.news-featured-card img { width: 100%; height: 240px; object-fit: cover; transition: transform 0.4s ease-out; }
.news-featured-card:hover img { transform: scale(1.03); }
.news-featured-body { padding: 1.5rem; }
.news-featured-body .news-cat { font-size: 0.75rem; color: var(--accent-deep); font-weight: 600; }
.news-featured-body h3 { font-size: 1.2rem; margin: 0.5rem 0 0.6rem; transition: color 0.3s; }
.news-featured-card:hover h3 { color: var(--accent-deep); }
.news-featured-body p { font-size: 0.85rem; color: var(--text-2); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-featured-body .news-meta { font-size: 0.78rem; color: var(--text-3); margin-top: 1rem; display: flex; gap: 1rem; align-items: center; }
.news-list { display: flex; flex-direction: column; background: var(--surface); border-radius: var(--radius-lg); border: 1px solid var(--border); padding: 0.5rem 1.5rem; }
.news-list-item { display: flex; align-items: center; gap: 1rem; padding: 1.05rem 0; border-bottom: 1px solid rgba(13,77,76,0.08); transition: all 0.3s; }
.news-list-item:last-child { border-bottom: none; }
.news-list-item .news-time { width: 72px; flex-shrink: 0; font-size: 0.78rem; color: var(--text-3); font-feature-settings: "tnum"; }
.news-list-item .news-title { flex: 1; font-size: 0.92rem; color: var(--text); font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; transition: color 0.3s; }
.news-list-item:hover .news-title { color: var(--accent-deep); }
.news-list-item .news-badge { font-size: 0.7rem; }
.empty-news { text-align: center; padding: 3rem 1.5rem; border: 2px dashed var(--border); border-radius: 12px; color: var(--text-3); font-size: 0.9rem; }

/* FAQ */
.faq-layout { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 3rem; margin-top: 2rem; }
.faq-left .faq-intro { font-size: 0.9rem; color: var(--text-2); margin-top: 1rem; }
.faq-list { border-top: 1px solid var(--border); }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-q { display: flex; align-items: center; justify-content: space-between; padding: 1.25rem 0; font-size: 1rem; font-weight: 500; cursor: pointer; color: var(--text); transition: color 0.3s; }
.faq-q:hover { color: var(--brand); }
.faq-icon { flex-shrink: 0; width: 24px; height: 24px; display: flex; align-items: center; justify-content: center; transition: transform 0.3s ease-out; }
.faq-icon::before, .faq-icon::after { content: ''; position: absolute; background: var(--text-2); transition: background 0.3s; }
.faq-icon { position: relative; }
.faq-icon::before { width: 12px; height: 2px; }
.faq-icon::after { width: 2px; height: 12px; }
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-item.open .faq-icon::before { background: var(--accent); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.3s ease-out; }
.faq-a-inner { padding-bottom: 1.25rem; font-size: 0.9rem; color: var(--text-2); line-height: 1.7; padding-right: 2rem; }

/* Footer */
.site-footer { border-top: 1px solid var(--border); background: var(--bg); padding: 3.5rem 1.5rem 1.5rem; }
.footer-grid { max-width: 1280px; margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1.2fr 1fr; gap: 2.5rem; }
.footer-logo { font-family: var(--font-serif); font-size: 1.2rem; font-weight: 700; color: var(--brand-deep); margin-bottom: 0.75rem; }
.footer-desc { font-size: 0.82rem; color: var(--text-2); line-height: 1.6; max-width: 280px; }
.footer-col-title { font-size: 0.9rem; font-weight: 600; color: var(--text); margin-bottom: 1rem; }
.footer-links { display: flex; flex-direction: column; gap: 0.5rem; }
.footer-links a { font-size: 0.85rem; color: var(--text-2); transition: all 0.3s; }
.footer-links a:hover { color: var(--accent-deep); padding-left: 4px; }
.footer-contact { font-size: 0.85rem; color: var(--text-2); display: flex; flex-direction: column; gap: 0.5rem; }
.footer-qr { width: 120px; height: 120px; border-radius: 8px; border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; font-size: 0.7rem; color: var(--text-3); background: var(--surface); }
.footer-bottom { max-width: 1280px; margin: 2.5rem auto 0; padding-top: 1.5rem; border-top: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; font-size: 0.78rem; color: var(--text-3); flex-wrap: wrap; gap: 0.5rem; }
.footer-bottom a { color: var(--text-3); }

/* Motion */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: translateY(0); } }
.hero-content > * { animation: fadeInUp 0.55s ease-out both; }
.hero-content > *:nth-child(2) { animation-delay: 0.15s; }
.hero-content > *:nth-child(3) { animation-delay: 0.3s; }
.hero-content > *:nth-child(4) { animation-delay: 0.45s; }
.hero-content > *:nth-child(5) { animation-delay: 0.6s; }

@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition-duration: 0.01ms !important; } }

/* Responsive */
@media (max-width: 1023px) {
  .sidebar { display: none; }
  .mobile-header { display: flex; }
  .main-wrap { margin-left: 0; padding-top: 64px; }
  .hero { min-height: 540px; }
  .news-layout { grid-template-columns: 1fr; }
  .faq-layout { grid-template-columns: 1fr; gap: 1.5rem; }
  .reviews-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 767px) {
  .hero-content { padding: 2.5rem 1.25rem; }
  .hero-stats { gap: 1.2rem; }
  .stat-num { font-size: 1.5rem; }
  .reviews-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 1.75rem; }
  .carousel-card img { height: 200px; }
  .condition-row { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
  .condition-num { width: auto; }
  .section { padding: 3.5rem 1rem; }
  .download-buttons { flex-direction: column; align-items: stretch; padding: 0 1rem; }
  .download-btn { justify-content: center; }
}

/* roulang page: article */
:root {
  --brand: #0d4d4c;
  --brand-deep: #083534;
  --brand-soft: #e7efee;
  --accent: #c7a76a;
  --accent-deep: #a98c52;
  --bg: #f8f7f4;
  --surface: #ffffff;
  --bg-deep: #0e3b3a;
  --text: #152b2d;
  --text-2: #5d7374;
  --text-3: #93a5a6;
  --border: rgba(13, 77, 76, 0.16);
  --radius: 8px;
  --radius-lg: 12px;
  --shadow-1: 0 1px 3px rgba(14, 59, 58, 0.08);
  --shadow-2: 0 8px 24px rgba(14, 59, 58, 0.10);
}

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

html {
  scroll-behavior: smooth;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s ease, border-color 0.3s ease, background 0.3s ease, transform 0.3s ease;
}

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

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

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

/* 字体 */
.serif {
  font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
}

/* 容器 */
.app-shell {
  display: flex;
  min-height: 100vh;
}

.main-content {
  flex: 1;
  margin-left: 264px;
  width: calc(100% - 264px);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* 侧栏导航 */
.sidebar {
  width: 264px;
  background: var(--bg);
  border-right: 1px solid var(--border);
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 50;
  display: flex;
  flex-direction: column;
  padding: 0 20px;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 32px 8px 24px;
  border-bottom: 1px solid var(--border);
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  background: var(--brand-deep);
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}

.brand-mark::after {
  content: "";
  position: absolute;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 3px solid var(--accent);
  top: 8px;
  left: 8px;
}

.brand-mark::before {
  content: "";
  position: absolute;
  width: 6px;
  height: 28px;
  background: var(--accent);
  bottom: 4px;
  left: 19px;
  transform: rotate(45deg);
}

.brand-name {
  display: block;
  font-size: 16px;
  font-weight: 700;
  color: var(--brand-deep);
  letter-spacing: 0.02em;
}

.brand-sub {
  display: block;
  font-size: 12px;
  color: var(--text-2);
  margin-top: 2px;
  letter-spacing: 0.06em;
}

.side-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 28px 0 20px;
  flex: 1;
}

.nav-link {
  position: relative;
  display: flex;
  align-items: center;
  padding: 12px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-2);
  border-radius: var(--radius);
  transition: all 0.3s ease;
}

.nav-link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%) scaleY(0);
  width: 4px;
  height: 20px;
  border-radius: 9999px;
  background: var(--accent);
  transition: transform 0.3s ease;
}

.nav-link:hover {
  color: var(--brand-deep);
  transform: translateX(4px);
}

.nav-link:hover::before {
  transform: translateY(-50%) scaleY(1);
}

.nav-link.active {
  color: var(--brand-deep);
  font-weight: 600;
  background: var(--brand-soft);
}

.nav-link.active::before {
  transform: translateY(-50%) scaleY(1);
}

.sidebar-bottom {
  padding: 20px 8px 28px;
  border-top: 1px solid var(--border);
}

.side-label {
  font-size: 12px;
  color: var(--text-3);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.side-phone {
  font-size: 15px;
  font-weight: 600;
  color: var(--brand-deep);
  font-feature-settings: "tnum";
}

.side-icons {
  display: flex;
  gap: 8px;
  margin-top: 16px;
}

.side-icons a {
  width: 32px;
  height: 32px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--text-2);
  transition: all 0.3s ease;
}

.side-icons a:hover {
  border-color: var(--accent);
  color: var(--accent-deep);
  transform: translateY(-2px);
}

/* 移动端顶栏 */
.mobile-header {
  display: none;
  position: sticky;
  top: 0;
  z-index: 60;
  height: 64px;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.menu-btn {
  width: 40px;
  height: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.menu-btn span {
  width: 22px;
  height: 2px;
  background: var(--brand-deep);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.mobile-logo {
  font-size: 16px;
  font-weight: 700;
  color: var(--brand-deep);
  letter-spacing: 0.02em;
}

.mobile-cta {
  font-size: 13px;
  font-weight: 500;
  color: var(--brand-deep);
  background: var(--accent);
  border-radius: 9999px;
  padding: 8px 16px;
  transition: background 0.3s ease;
}

.mobile-cta:hover {
  background: var(--accent-deep);
}

/* 抽屉 */
.drawer-mask {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(8, 53, 52, 0.5);
  z-index: 90;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.drawer {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 280px;
  background: var(--surface);
  z-index: 100;
  transform: translateX(-100%);
  transition: transform 0.3s ease;
  padding: 24px;
  overflow-y: auto;
}

.drawer.open {
  transform: translateX(0);
}

.drawer-mask.open {
  display: block;
  opacity: 1;
}

.drawer-brand {
  font-size: 18px;
  font-weight: 700;
  color: var(--brand-deep);
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
  font-family: "Noto Serif SC", "Songti SC", serif;
}

.drawer-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.drawer-nav .nav-link {
  padding: 14px 16px;
}

.drawer-contact {
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.8;
}

/* 文章页主区域 */
.article-main {
  flex: 1;
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 48px 40px 72px;
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--text-3);
  margin-bottom: 40px;
}

.breadcrumb a {
  color: var(--text-2);
  transition: color 0.3s ease;
}

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

.breadcrumb .crumb-sep {
  color: var(--text-3);
  font-size: 12px;
}

.breadcrumb .crumb-current {
  color: var(--text);
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 260px;
}

/* 文章头部 */
.article-header {
  max-width: 860px;
  margin-bottom: 32px;
}

.category-tag {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 9999px;
  border: 1px solid var(--accent);
  color: var(--accent-deep);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
  background: transparent;
  transition: all 0.3s ease;
}

.category-tag:hover {
  background: var(--accent);
  color: #fff;
}

.article-title {
  font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text);
  margin-bottom: 20px;
  letter-spacing: 0.01em;
}

.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 14px;
  color: var(--text-2);
}

.article-meta .meta-dot {
  color: var(--text-3);
}

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

/* 正文 */
.article-body-wrap {
  max-width: 860px;
}

.article-content {
  max-width: 720px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
}

.article-content p {
  margin-bottom: 28px;
}

.article-content p:first-of-type {
  font-size: 17px;
  color: var(--brand-deep);
}

.article-content h2 {
  font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
  font-size: 32px;
  font-weight: 600;
  line-height: 1.3;
  margin-top: 48px;
  margin-bottom: 20px;
  color: var(--brand-deep);
}

.article-content h3 {
  font-size: 20px;
  font-weight: 600;
  margin-top: 32px;
  margin-bottom: 16px;
  color: var(--text);
}

.article-content img {
  border-radius: var(--radius-lg);
  margin: 32px 0;
  box-shadow: var(--shadow-2);
}

.article-content blockquote {
  background: var(--brand-soft);
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  padding: 20px 28px;
  margin: 24px 0;
  font-style: normal;
  color: var(--brand-deep);
}

.article-content blockquote p {
  margin-bottom: 0;
}

.article-content ul {
  list-style: none;
  padding: 0;
  margin: 0 0 28px;
}

.article-content ul li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 10px;
}

.article-content ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--accent);
}

.article-content a {
  color: var(--accent-deep);
  border-bottom: 1px solid rgba(169, 140, 82, 0.4);
}

.article-content a:hover {
  border-bottom-color: var(--accent-deep);
}

/* 内容未找到 */
.not-found {
  text-align: center;
  padding: 80px 40px;
  background: var(--surface);
  border: 1px dashed var(--border);
  border-radius: var(--radius-lg);
}

.not-found p {
  font-size: 18px;
  color: var(--text-2);
  margin-bottom: 16px;
}

.not-found a {
  display: inline-block;
  padding: 10px 28px;
  border-radius: var(--radius);
  background: var(--brand);
  color: #fff;
  font-size: 14px;
  transition: background 0.3s ease;
}

.not-found a:hover {
  background: var(--brand-deep);
}

/* 标签区 */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  max-width: 720px;
}

.tag-pill {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 9999px;
  border: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-2);
  transition: all 0.3s ease;
}

.tag-pill:hover {
  background: var(--brand-soft);
  border-color: var(--brand);
  color: var(--brand-deep);
}

/* 相关阅读 */
.related-section {
  margin-top: 64px;
}

.related-title {
  font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
  font-size: 22px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 24px;
}

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

.related-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.3s ease;
}

.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-2);
  border-color: rgba(13, 77, 76, 0.3);
}

.related-thumb {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--brand-soft);
}

.related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.related-card:hover .related-thumb img {
  transform: scale(1.05);
}

.related-body {
  padding: 18px 20px 20px;
}

.related-body h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 8px;
  transition: color 0.3s ease;
}

.related-card:hover .related-body h4 {
  color: var(--accent-deep);
}

.related-date {
  font-size: 13px;
  color: var(--text-3);
  font-feature-settings: "tnum";
}

/* 上一篇/下一篇 */
.article-prev-next {
  display: flex;
  gap: 16px;
  margin-top: 56px;
  max-width: 720px;
}

.pn-btn {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  transition: all 0.3s ease;
}

.pn-btn:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-1);
}

.pn-btn .pn-label {
  font-size: 12px;
  color: var(--text-3);
  display: block;
  margin-bottom: 2px;
}

.pn-btn .pn-title {
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
}

.pn-btn .pn-arrow {
  font-size: 18px;
  color: var(--accent-deep);
  flex-shrink: 0;
}

/* 页脚 */
.site-footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 56px 40px 20px;
}

.footer-grid {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}

.footer-logo {
  font-family: "Noto Serif SC", "Songti SC", serif;
  font-size: 20px;
  font-weight: 700;
  color: var(--brand-deep);
  margin-bottom: 12px;
}

.footer-desc {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.7;
  max-width: 280px;
}

.footer-col-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 16px;
}

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

.footer-links a {
  font-size: 14px;
  color: var(--text-2);
  transition: color 0.3s ease, transform 0.3s ease;
}

.footer-links a:hover {
  color: var(--accent-deep);
  transform: translateX(4px);
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 14px;
  color: var(--text-2);
}

.footer-contact span {
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-qr {
  width: 88px;
  height: 88px;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: var(--text-3);
  background: var(--surface);
}

.footer-bottom {
  max-width: 1280px;
  margin: 0 auto;
  border-top: 1px solid var(--border);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--text-3);
}

/* 响应式 */
@media (max-width: 1023px) {
  .sidebar {
    display: none;
  }
  .main-content {
    margin-left: 0;
    width: 100%;
  }
  .mobile-header {
    display: flex;
  }
  .article-main {
    padding: 32px 24px 48px;
  }
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 767px) {
  .article-main {
    padding: 24px 20px 40px;
  }
  .breadcrumb {
    margin-bottom: 24px;
  }
  .article-title {
    font-size: 24px;
    line-height: 1.35;
  }
  .article-meta {
    font-size: 13px;
    flex-wrap: wrap;
  }
  .article-content {
    font-size: 15px;
  }
  .article-content h2 {
    font-size: 24px;
  }
  .article-content h3 {
    font-size: 18px;
  }
  .related-grid {
    grid-template-columns: 1fr;
  }
  .article-prev-next {
    flex-direction: column;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  .site-footer {
    padding: 40px 20px 16px;
  }
}

/* 动效 */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* roulang page: category1 */
:root {
      --brand: #0d4d4c;
      --brand-deep: #083534;
      --brand-soft: #e7efee;
      --accent: #c7a76a;
      --accent-deep: #a98c52;
      --bg: #f8f7f4;
      --surface: #ffffff;
      --bg-deep: #0e3b3a;
      --text: #152b2d;
      --text-2: #5d7374;
      --text-3: #93a5a6;
      --border: rgba(13,77,76,0.16);
      --radius: 8px;
      --radius-lg: 12px;
      --shadow-1: 0 1px 3px rgba(14,59,58,0.08);
      --shadow-2: 0 8px 24px rgba(14,59,58,0.10);
      --font-serif: "Noto Serif SC","Source Han Serif SC","Songti SC",serif;
      --font-sans: "Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-sans);
      background: var(--bg);
      color: var(--text);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }

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

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

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

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 32px;
    }

    .app-shell {
      display: flex;
      min-height: 100vh;
    }

    .main-wrap {
      flex: 1;
      margin-left: 264px;
      min-width: 0;
    }

    /* ===== 左侧导航 ===== */
    .side-nav {
      width: 264px;
      position: fixed;
      top: 0;
      left: 0;
      bottom: 0;
      background: var(--bg);
      border-right: 1px solid var(--border);
      display: flex;
      flex-direction: column;
      z-index: 60;
      transition: transform .3s ease-out;
    }

    .side-inner {
      display: flex;
      flex-direction: column;
      height: 100%;
      padding: 28px 20px 20px;
    }

    .brand-block {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 0 8px 28px;
      border-bottom: 1px solid var(--border);
      margin-bottom: 24px;
    }

    .brand-mark {
      width: 40px;
      height: 40px;
      border-radius: 10px;
      background: var(--brand);
      color: var(--accent);
      font-family: var(--font-serif);
      font-size: 16px;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }

    .brand-text {
      font-family: var(--font-serif);
      font-size: 18px;
      font-weight: 700;
      color: var(--brand-deep);
      line-height: 1.3;
      letter-spacing: .02em;
    }

    .site-nav {
      display: flex;
      flex-direction: column;
      gap: 6px;
      flex: 1;
    }

    .nav-link {
      position: relative;
      display: flex;
      align-items: center;
      padding: 12px 16px;
      color: var(--text-2);
      font-size: 15px;
      font-weight: 500;
      border-radius: var(--radius);
      transition: color .3s ease-out, transform .3s ease-out;
    }

    .nav-link::before {
      content: "";
      position: absolute;
      left: 0;
      top: 50%;
      transform: translateY(-50%) scaleY(0);
      width: 4px;
      height: 20px;
      background: var(--accent);
      border-radius: 2px;
      transition: transform .3s ease-out;
    }

    .nav-link:hover {
      color: var(--text);
      transform: translateX(4px);
    }

    .nav-link:hover::before {
      transform: translateY(-50%) scaleY(1);
    }

    .nav-link.active {
      color: var(--text);
      font-weight: 600;
    }

    .nav-link.active::before {
      transform: translateY(-50%) scaleY(1);
    }

    .side-foot {
      border-top: 1px solid var(--border);
      padding-top: 20px;
      font-size: 13px;
      color: var(--text-3);
      line-height: 1.8;
    }

    .side-social {
      display: flex;
      gap: 10px;
      margin-top: 14px;
    }

    .side-social a {
      width: 36px;
      height: 36px;
      border: 1px solid var(--border);
      border-radius: 8px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 13px;
      color: var(--text-2);
      transition: border-color .3s, color .3s;
    }

    .side-social a:hover {
      border-color: var(--accent);
      color: var(--accent-deep);
    }

    .sidebar-overlay {
      display: none;
      position: fixed;
      inset: 0;
      background: rgba(8, 53, 52, 0.4);
      z-index: 55;
    }

    /* ===== 移动顶栏 ===== */
    .mobile-topbar {
      display: none;
      position: sticky;
      top: 0;
      z-index: 70;
      height: 64px;
      background: var(--surface);
      border-bottom: 1px solid var(--border);
      padding: 0 20px;
      align-items: center;
      justify-content: space-between;
    }

    .menu-btn {
      display: flex;
      flex-direction: column;
      gap: 5px;
      background: none;
      border: none;
      width: 44px;
      height: 44px;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      border-radius: var(--radius);
    }

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

    .mobile-logo {
      font-family: var(--font-serif);
      font-size: 18px;
      font-weight: 700;
      color: var(--brand-deep);
    }

    .mobile-call {
      padding: 8px 16px;
      border: 1px solid var(--accent);
      border-radius: 999px;
      color: var(--accent-deep);
      font-size: 13px;
      font-weight: 500;
      transition: background .3s, color .3s;
    }

    .mobile-call:hover {
      background: var(--accent);
      color: var(--brand-deep);
    }

    /* ===== Banner ===== */
    .page-banner {
      position: relative;
      min-height: 220px;
      background-size: cover;
      background-position: center;
      display: flex;
      align-items: flex-end;
    }

    .banner-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, rgba(8, 53, 52, 0.88), rgba(13, 77, 76, 0.55));
    }

    .banner-content {
      position: relative;
      z-index: 2;
      padding: 52px 0 46px;
      width: 100%;
    }

    .banner-label {
      font-size: 12px;
      letter-spacing: .14em;
      color: var(--accent);
      margin-bottom: 10px;
      font-weight: 500;
    }

    .banner-content h1 {
      font-family: var(--font-serif);
      font-size: clamp(2.2rem, 5vw, 3.4rem);
      color: #fff;
      line-height: 1.2;
      font-weight: 700;
    }

    .banner-sub {
      color: rgba(255, 255, 255, 0.82);
      font-size: 15px;
      margin-top: 12px;
      max-width: 640px;
    }

    /* ===== 通用板块 ===== */
    .section {
      padding: 88px 0;
    }

    .section-alt {
      background: var(--surface);
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }

    .sec-label {
      font-size: 12px;
      letter-spacing: .14em;
      color: var(--accent-deep);
      font-weight: 600;
      margin-bottom: 10px;
    }

    h2 {
      font-family: var(--font-serif);
      font-size: clamp(1.7rem, 3vw, 2.4rem);
      font-weight: 600;
      line-height: 1.25;
      color: var(--text);
    }

    .split-grid {
      display: grid;
      grid-template-columns: 1.05fr 1fr;
      gap: 72px;
      align-items: center;
    }

    .split-grid.reverse .split-media {
      order: 2;
    }

    .split-grid.reverse .split-content {
      order: 1;
    }

    .split-media {
      border-radius: var(--radius-lg);
      overflow: hidden;
      background: var(--brand-soft);
      box-shadow: var(--shadow-2);
    }

    .split-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      aspect-ratio: 4 / 3;
    }

    .split-content h2 {
      margin-bottom: 8px;
    }

    .lead {
      color: var(--text-2);
      font-size: 16px;
      margin: 16px 0 28px;
      line-height: 1.8;
    }

    .point-list {
      list-style: none;
    }

    .point-list li {
      display: flex;
      gap: 16px;
      align-items: center;
      padding: 16px 0;
      border-bottom: 1px solid var(--border);
      font-size: 15px;
    }

    .point-list li:last-child {
      border-bottom: none;
    }

    .point-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 36px;
      height: 36px;
      border-radius: var(--radius);
      background: var(--brand-soft);
      color: var(--accent-deep);
      font-size: 13px;
      flex-shrink: 0;
      font-weight: 600;
    }

    .stat-row {
      display: flex;
      gap: 48px;
      margin-top: 36px;
      flex-wrap: wrap;
    }

    .stat-row strong {
      font-family: var(--font-serif);
      font-size: 2.4rem;
      color: var(--brand);
      display: block;
      line-height: 1.2;
    }

    .stat-row span {
      font-size: 13px;
      color: var(--text-2);
    }

    /* ===== 引用块 ===== */
    .quote-block {
      position: relative;
      background-size: cover;
      background-position: center;
      padding: 120px 0;
    }

    .quote-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(8, 53, 52, 0.85), rgba(13, 77, 76, 0.78));
    }

    .quote-inner {
      position: relative;
      z-index: 2;
      text-align: center;
      max-width: 760px;
    }

    .quote-inner blockquote {
      font-family: var(--font-serif);
      font-size: clamp(1.3rem, 2.6vw, 1.8rem);
      color: #fff;
      line-height: 1.7;
      font-weight: 400;
    }

    .quote-author {
      color: rgba(255, 255, 255, 0.72);
      font-size: 14px;
      margin-top: 22px;
      letter-spacing: .04em;
    }

    /* ===== 会籍列表 ===== */
    .section-head {
      max-width: 640px;
      margin-bottom: 48px;
    }

    .section-head p:not(.sec-label) {
      color: var(--text-2);
      font-size: 15px;
      margin-top: 14px;
    }

    .plan-list {
      border-top: 1px solid var(--border);
    }

    .plan-row {
      display: grid;
      grid-template-columns: 90px 1fr auto;
      gap: 28px;
      padding: 34px 8px;
      border-bottom: 1px solid var(--border);
      align-items: center;
      transition: background .3s ease-out;
    }

    .plan-row:hover {
      background: rgba(199, 167, 106, 0.04);
    }

    .plan-num {
      font-family: var(--font-serif);
      font-size: 2.2rem;
      font-weight: 600;
      color: var(--border);
      transition: color .3s ease-out;
    }

    .plan-row:hover .plan-num {
      color: var(--accent);
    }

    .plan-main h3 {
      font-size: 20px;
      font-weight: 600;
      margin-bottom: 6px;
      color: var(--text);
    }

    .plan-main p {
      color: var(--text-2);
      font-size: 14px;
      line-height: 1.7;
    }

    .plan-tag {
      font-size: 12px;
      padding: 6px 14px;
      border-radius: 999px;
      border: 1px solid var(--accent);
      color: var(--accent-deep);
      white-space: nowrap;
      font-weight: 500;
    }

    /* ===== 表单 ===== */
    .section-form {
      background: var(--brand-soft);
      border-top: 1px solid var(--border);
    }

    .form-card {
      display: grid;
      grid-template-columns: .8fr 1.4fr;
      gap: 64px;
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 48px;
      box-shadow: var(--shadow-1);
    }

    .form-intro h2 {
      margin-bottom: 14px;
    }

    .form-intro p:not(.sec-label) {
      color: var(--text-2);
      font-size: 15px;
      line-height: 1.8;
    }

    .contact-form label {
      font-size: 14px;
      font-weight: 500;
      display: block;
      margin-bottom: 8px;
      color: var(--text);
    }

    .contact-form input,
    .contact-form select,
    .contact-form textarea {
      width: 100%;
      height: 44px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 10px 14px;
      font-size: 14px;
      background: var(--surface);
      color: var(--text);
      transition: border-color .3s, box-shadow .3s;
    }

    .contact-form textarea {
      height: auto;
      resize: vertical;
      min-height: 90px;
    }

    .contact-form input:focus,
    .contact-form select:focus,
    .contact-form textarea:focus {
      outline: none;
      border-color: var(--accent);
      box-shadow: 0 0 0 3px rgba(199, 167, 106, 0.2);
    }

    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }

    .form-field + .form-field,
    .contact-form > label,
    .contact-form > input,
    .contact-form > select,
    .contact-form > textarea {
      margin-top: 18px;
      display: block;
    }

    .form-submit-row {
      display: flex;
      align-items: center;
      gap: 16px;
      margin-top: 28px;
      flex-wrap: wrap;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 48px;
      padding: 0 28px;
      border-radius: var(--radius);
      font-size: 15px;
      font-weight: 600;
      border: 1px solid transparent;
      cursor: pointer;
      transition: all .3s ease-out;
      letter-spacing: .02em;
    }

    .btn-primary {
      background: var(--accent);
      color: var(--brand-deep);
    }

    .btn-primary:hover {
      background: var(--accent-deep);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: var(--shadow-1);
    }

    .btn-outline {
      background: transparent;
      border-color: #fff;
      color: #fff;
    }

    .btn-outline:hover {
      border-color: var(--accent);
      color: var(--accent);
      transform: translateY(-2px);
    }

    .form-note {
      font-size: 13px;
      color: var(--text-3);
    }

    /* ===== FAQ ===== */
    .faq-grid {
      display: grid;
      grid-template-columns: .8fr 1.4fr;
      gap: 72px;
      align-items: start;
    }

    .faq-left h2 {
      margin-bottom: 14px;
    }

    .faq-left p:not(.sec-label) {
      color: var(--text-2);
      font-size: 15px;
      line-height: 1.8;
    }

    .faq-item {
      border-bottom: 1px solid var(--border);
    }

    .faq-q {
      display: flex;
      justify-content: space-between;
      align-items: center;
      width: 100%;
      padding: 22px 4px;
      font-size: 16px;
      font-weight: 500;
      cursor: pointer;
      background: none;
      border: none;
      color: var(--text);
      text-align: left;
      transition: color .3s;
    }

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

    .faq-icon {
      position: relative;
      width: 16px;
      height: 16px;
      flex-shrink: 0;
      transition: transform .3s ease-out;
    }

    .faq-icon::before,
    .faq-icon::after {
      content: "";
      position: absolute;
      background: var(--accent);
      transition: background .3s;
    }

    .faq-icon::before {
      left: 0;
      right: 0;
      top: 50%;
      height: 2px;
      transform: translateY(-50%);
      border-radius: 2px;
    }

    .faq-icon::after {
      top: 0;
      bottom: 0;
      left: 50%;
      width: 2px;
      transform: translateX(-50%);
      border-radius: 2px;
    }

    .faq-item.open .faq-icon {
      transform: rotate(45deg);
    }

    .faq-a {
      max-height: 0;
      overflow: hidden;
      transition: max-height .3s ease-out;
      font-size: 14px;
      color: var(--text-2);
      line-height: 1.75;
    }

    .faq-a p {
      padding: 0 4px 22px;
    }

    /* ===== CTA ===== */
    .cta-block {
      background: var(--bg-deep);
      padding: 88px 0;
    }

    .cta-inner {
      text-align: center;
      max-width: 720px;
    }

    .cta-inner h2 {
      color: #fff;
      font-size: clamp(1.8rem, 3.5vw, 2.6rem);
    }

    .cta-inner p {
      color: rgba(255, 255, 255, 0.72);
      margin: 16px 0 36px;
      font-size: 16px;
    }

    .cta-inner .btn {
      margin: 0 10px;
    }

    /* ===== 页脚 ===== */
    .site-footer {
      background: var(--bg);
      border-top: 1px solid var(--border);
      padding: 64px 0 24px;
    }

    .footer-grid {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 32px;
      display: grid;
      grid-template-columns: 1.4fr .8fr 1fr 1fr;
      gap: 48px;
    }

    .footer-logo {
      font-family: var(--font-serif);
      font-size: 20px;
      font-weight: 700;
      color: var(--brand);
    }

    .footer-desc {
      font-size: 13px;
      color: var(--text-2);
      margin-top: 14px;
      line-height: 1.8;
      max-width: 320px;
    }

    .footer-col-title {
      font-size: 15px;
      font-weight: 600;
      margin-bottom: 16px;
      color: var(--text);
    }

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

    .footer-links a {
      font-size: 14px;
      color: var(--text-2);
      transition: color .3s;
    }

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

    .footer-contact {
      display: flex;
      flex-direction: column;
      gap: 10px;
      font-size: 14px;
      color: var(--text-2);
    }

    .footer-qr {
      width: 96px;
      height: 96px;
      border: 1px dashed var(--border);
      border-radius: var(--radius);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      color: var(--text-3);
      background: var(--surface);
    }

    .footer-bottom {
      max-width: 1200px;
      margin: 48px auto 0;
      padding: 20px 32px 0;
      border-top: 1px solid var(--border);
      display: flex;
      justify-content: space-between;
      font-size: 13px;
      color: var(--text-3);
    }

    .footer-bottom a {
      color: var(--text-3);
      transition: color .3s;
    }

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

    /* ===== 响应式 ===== */
    @media (max-width: 1023px) {
      .side-nav {
        display: none;
        width: 280px;
        box-shadow: var(--shadow-2);
      }

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

      .sidebar-overlay.show {
        display: block;
      }

      .main-wrap {
        margin-left: 0;
      }

      .mobile-topbar {
        display: flex;
      }

      .split-grid {
        gap: 48px;
      }
    }

    @media (max-width: 767px) {
      .container {
        padding: 0 20px;
      }

      .section {
        padding: 64px 0;
      }

      .split-grid {
        grid-template-columns: 1fr;
        gap: 36px;
      }

      .split-grid.reverse .split-media,
      .split-grid.reverse .split-content {
        order: 0;
      }

      .stat-row {
        gap: 24px;
      }

      .stat-row strong {
        font-size: 2rem;
      }

      .quote-block {
        padding: 72px 0;
      }

      .plan-row {
        grid-template-columns: 1fr;
        gap: 12px;
        padding: 26px 4px;
      }

      .plan-num {
        font-size: 1.8rem;
      }

      .plan-tag {
        justify-self: start;
      }

      .form-card {
        grid-template-columns: 1fr;
        padding: 28px 24px;
        gap: 36px;
      }

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

      .faq-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }

      .cta-block {
        padding: 64px 0;
      }

      .cta-inner .btn {
        margin: 6px 4px;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 36px;
        padding: 0 20px;
      }

      .footer-bottom {
        flex-direction: column;
        gap: 8px;
        padding-left: 20px;
        padding-right: 20px;
      }

      .page-banner {
        min-height: 190px;
      }

      .banner-content {
        padding: 40px 0 36px;
      }
    }

    @media (prefers-reduced-motion: reduce) {
      *,
      *::before,
      *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
      }

      html {
        scroll-behavior: auto;
      }
    }

/* roulang page: category2 */
:root {
      --brand: #0d4d4c;
      --brand-deep: #083534;
      --brand-soft: #e7efee;
      --accent: #c7a76a;
      --accent-deep: #a98c52;
      --bg: #f8f7f4;
      --surface: #ffffff;
      --bg-deep: #0e3b3a;
      --text: #152b2d;
      --text-2: #5d7374;
      --text-3: #93a5a6;
      --border: rgba(13, 77, 76, 0.16);
      --radius: 8px;
      --radius-lg: 12px;
      --shadow-1: 0 1px 3px rgba(14, 59, 58, 0.08);
      --shadow-2: 0 8px 24px rgba(14, 59, 58, 0.10);
      --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
      --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-sans);
      font-size: 16px;
      line-height: 1.75;
      color: var(--text);
      background: var(--bg);
      -webkit-font-smoothing: antialiased;
    }

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

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

    button {
      font-family: inherit;
    }

    .font-serif {
      font-family: var(--font-serif);
    }

    .tnum {
      font-feature-settings: "tnum";
    }

    .container-main {
      max-width: 1280px;
      margin: 0 auto;
      padding-left: 2rem;
      padding-right: 2rem;
    }

    /* ===== 侧边导航 ===== */
    .side-nav-wrap {
      position: fixed;
      top: 0;
      left: 0;
      bottom: 0;
      width: 264px;
      background: var(--bg);
      border-right: 1px solid var(--border);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      z-index: 50;
      padding: 0 0 2rem 0;
    }

    .side-nav-inner {
      display: flex;
      flex-direction: column;
      gap: 2px;
      margin-top: 1.5rem;
    }

    .brand-block {
      height: 80px;
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 0 24px;
      border-bottom: 1px solid var(--border);
    }

    .brand-mark {
      width: 28px;
      height: 28px;
      border-radius: 50%;
      border: 2px solid var(--accent);
      background: var(--brand-soft);
      flex-shrink: 0;
      position: relative;
    }

    .brand-mark::after {
      content: "";
      position: absolute;
      inset: 6px;
      border-radius: 50%;
      background: var(--accent);
    }

    .brand-name {
      font-family: var(--font-serif);
      font-size: 17px;
      font-weight: 700;
      color: var(--text);
      line-height: 1.3;
      letter-spacing: 0.04em;
    }

    .brand-sub {
      font-size: 11px;
      color: var(--text-3);
      letter-spacing: 0.1em;
      margin-top: 1px;
      text-transform: uppercase;
    }

    .nav-group {
      padding: 0 16px;
    }

    .nav-group-label {
      font-size: 11px;
      letter-spacing: 0.14em;
      color: var(--text-3);
      font-weight: 500;
      margin: 24px 8px 10px 8px;
      text-transform: uppercase;
    }

    .nav-link {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 10px 14px;
      font-size: 15px;
      font-weight: 500;
      color: var(--text-2);
      border-radius: var(--radius);
      position: relative;
      transition: all 0.3s ease-out;
      line-height: 1.4;
    }

    .nav-link::before {
      content: "";
      position: absolute;
      left: -16px;
      top: 50%;
      transform: translateY(-50%) scaleY(0);
      width: 4px;
      height: 20px;
      border-radius: 0 4px 4px 0;
      background: var(--accent);
      transition: transform 0.3s ease-out, opacity 0.3s ease-out;
      opacity: 0;
    }

    .nav-link:hover {
      color: var(--text);
      transform: translateX(4px);
    }

    .nav-link:hover::before {
      transform: translateY(-50%) scaleY(1);
      opacity: 1;
    }

    .nav-link.active {
      color: var(--text);
      background: var(--brand-soft);
      font-weight: 600;
    }

    .nav-link.active::before {
      transform: translateY(-50%) scaleY(1);
      opacity: 1;
    }

    .nav-icon {
      width: 18px;
      height: 18px;
      flex-shrink: 0;
      color: var(--text-3);
      transition: color 0.3s;
    }

    .nav-link:hover .nav-icon,
    .nav-link.active .nav-icon {
      color: var(--accent-deep);
    }

    .side-nav-contact {
      padding: 24px 24px 0;
      border-top: 1px solid var(--border);
    }

    .side-nav-phone {
      font-size: 14px;
      font-weight: 600;
      color: var(--text);
      font-feature-settings: "tnum";
    }

    .side-nav-desc {
      font-size: 12px;
      color: var(--text-3);
      margin-top: 4px;
    }

    .side-social {
      display: flex;
      gap: 8px;
      margin-top: 14px;
    }

    .social-btn {
      width: 36px;
      height: 36px;
      border-radius: var(--radius);
      border: 1px solid var(--border);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--text-2);
      transition: all 0.3s;
    }

    .social-btn:hover {
      border-color: var(--accent);
      color: var(--accent-deep);
    }

    /* 移动端顶栏 */
    .mobile-topbar {
      display: none;
    }

    .mobile-drawer {
      display: none;
    }

    /* ===== 主内容 ===== */
    .main-content {
      margin-left: 264px;
      min-height: 100vh;
    }

    /* ===== 分类页顶部窄banner ===== */
    .category-hero {
      position: relative;
      min-height: 220px;
      background-image: url('/assets/images/backpic/back-1.png');
      background-size: cover;
      background-position: center 40%;
      display: flex;
      align-items: flex-end;
      overflow: hidden;
    }

    .category-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(120deg, rgba(13, 77, 76, 0.9) 20%, rgba(8, 53, 52, 0.55) 80%);
    }

    .category-hero-content {
      position: relative;
      z-index: 2;
      padding: 56px 0 44px;
      width: 100%;
    }

    .category-hero h1 {
      font-family: var(--font-serif);
      font-size: clamp(2rem, 4vw, 2.75rem);
      font-weight: 700;
      color: #fff;
      line-height: 1.2;
      margin-bottom: 12px;
    }

    .category-hero .subcopy {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.78);
      max-width: 560px;
      line-height: 1.7;
    }

    /* ===== 面包屑 ===== */
    .breadcrumb {
      font-size: 13px;
      color: var(--text-3);
      padding: 20px 0 4px;
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }

    .breadcrumb a {
      color: var(--text-3);
      transition: color 0.3s;
    }

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

    .breadcrumb .sep {
      color: var(--text-3);
    }

    .breadcrumb .current {
      color: var(--text-2);
      max-width: 380px;
      overflow: hidden;
      white-space: nowrap;
      text-overflow: ellipsis;
    }

    /* ===== 索引+列表两列布局 ===== */
    .index-list-wrap {
      display: grid;
      grid-template-columns: 220px 1fr;
      gap: 56px;
      margin-top: 44px;
    }

    .sticky-index {
      position: sticky;
      top: 32px;
      align-self: start;
      border-left: 1px solid var(--border);
      padding-left: 20px;
    }

    .sticky-index-title {
      font-size: 12px;
      letter-spacing: 0.14em;
      color: var(--text-3);
      font-weight: 600;
      text-transform: uppercase;
      margin-bottom: 20px;
    }

    .sticky-index a {
      display: block;
      font-size: 14px;
      color: var(--text-2);
      padding: 7px 0;
      border-bottom: 1px solid rgba(13, 77, 76, 0.06);
      transition: all 0.3s;
      position: relative;
    }

    .sticky-index a::before {
      content: "";
      position: absolute;
      left: -21px;
      top: 50%;
      transform: translateY(-50%) scaleY(0);
      width: 3px;
      height: 16px;
      border-radius: 0 3px 3px 0;
      background: var(--accent);
      transition: transform 0.3s;
    }

    .sticky-index a:hover,
    .sticky-index a.active {
      color: var(--brand);
      font-weight: 500;
    }

    .sticky-index a:hover::before,
    .sticky-index a.active::before {
      transform: translateY(-50%) scaleY(1);
    }

    .index-list {
      display: flex;
      flex-direction: column;
    }

    .route-item {
      display: grid;
      grid-template-columns: 72px 1fr auto;
      gap: 24px;
      padding: 32px 0;
      border-bottom: 1px solid var(--border);
      align-items: start;
      transition: background 0.3s;
    }

    .route-item:last-child {
      border-bottom: none;
    }

    .route-number {
      font-family: var(--font-serif);
      font-size: 3rem;
      font-weight: 700;
      color: var(--brand);
      line-height: 1;
      opacity: 0.22;
      transition: all 0.3s;
    }

    .route-item:hover .route-number {
      color: var(--accent);
      opacity: 1;
    }

    .route-title {
      font-size: 20px;
      font-weight: 600;
      color: var(--text);
      margin-bottom: 8px;
      font-family: var(--font-sans);
    }

    .route-desc {
      font-size: 15px;
      color: var(--text-2);
      line-height: 1.75;
      max-width: 560px;
    }

    .route-meta {
      display: flex;
      flex-direction: column;
      align-items: flex-end;
      gap: 8px;
      flex-shrink: 0;
    }

    .tag-pill {
      font-size: 12px;
      font-weight: 500;
      border-radius: 9999px;
      padding: 4px 12px;
      border: 1px solid var(--border);
      color: var(--text-2);
      white-space: nowrap;
    }

    .tag-pill-gold {
      border-color: rgba(199, 167, 106, 0.4);
      color: var(--accent-deep);
      background: rgba(199, 167, 106, 0.06);
    }

    .tag-pill-green {
      border-color: rgba(13, 77, 76, 0.2);
      color: var(--brand);
      background: var(--brand-soft);
    }

    .route-time {
      font-size: 12px;
      color: var(--text-3);
      font-feature-settings: "tnum";
    }

    /* ===== 特色板块2：热门航线卡片 ===== */
    .feature-cards {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .feature-card {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      overflow: hidden;
      transition: all 0.3s ease-out;
    }

    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-2);
      border-color: rgba(13, 77, 76, 0.28);
    }

    .feature-card .img-wrap {
      aspect-ratio: 16/10;
      overflow: hidden;
      position: relative;
    }

    .feature-card .img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease-out;
    }

    .feature-card:hover .img-wrap img {
      transform: scale(1.05);
    }

    .feature-card-body {
      padding: 24px;
    }

    .feature-card-body h3 {
      font-size: 18px;
      font-weight: 600;
      color: var(--text);
      margin-bottom: 8px;
    }

    .feature-card-body p {
      font-size: 14px;
      color: var(--text-2);
      line-height: 1.7;
    }

    .feature-card-tag {
      display: inline-block;
      font-size: 12px;
      color: var(--accent-deep);
      border: 1px solid rgba(199, 167, 106, 0.4);
      border-radius: 9999px;
      padding: 2px 10px;
      margin-bottom: 12px;
      letter-spacing: 0.02em;
    }

    /* ===== 特色板块3：服务保障 ===== */
    .service-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .service-item {
      background: var(--surface);
      border-radius: var(--radius);
      padding: 32px 28px;
      border: 1px solid var(--border);
      transition: all 0.3s;
    }

    .service-item:hover {
      box-shadow: var(--shadow-2);
      border-color: rgba(199, 167, 106, 0.4);
    }

    .service-item .icon {
      width: 40px;
      height: 40px;
      border-radius: 8px;
      background: var(--brand-soft);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--brand);
      margin-bottom: 20px;
      font-size: 18px;
    }

    .service-item h3 {
      font-size: 16px;
      font-weight: 600;
      margin-bottom: 10px;
    }

    .service-item p {
      font-size: 14px;
      color: var(--text-2);
      line-height: 1.7;
    }

    /* ===== 表单区 ===== */
    .form-section {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 48px 40px;
    }

    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-bottom: 20px;
    }

    .form-group label {
      display: block;
      font-size: 14px;
      font-weight: 500;
      margin-bottom: 6px;
      color: var(--text);
    }

    .form-control {
      width: 100%;
      height: 44px;
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 0 14px;
      font-size: 14px;
      color: var(--text);
      transition: all 0.3s;
    }

    .form-control:focus {
      outline: none;
      border-color: var(--accent);
      box-shadow: 0 0 0 3px rgba(199, 167, 106, 0.2);
    }

    textarea.form-control {
      height: 100px;
      padding: 14px;
      resize: vertical;
    }

    select.form-control {
      appearance: none;
      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%235d7374' stroke-width='2'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
      background-repeat: no-repeat;
      background-position: right 12px center;
      background-size: 16px;
      padding-right: 40px;
    }

    /* ===== FAQ ===== */
    .faq-item {
      border-bottom: 1px solid var(--border);
    }

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

    .faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 24px 8px;
      cursor: pointer;
      font-size: 16px;
      font-weight: 500;
      color: var(--text);
      transition: color 0.3s;
    }

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

    .faq-icon {
      width: 20px;
      height: 20px;
      position: relative;
      flex-shrink: 0;
      margin-left: 16px;
    }

    .faq-icon::before,
    .faq-icon::after {
      content: "";
      position: absolute;
      background: var(--text-2);
      transition: transform 0.3s, background 0.3s;
      border-radius: 2px;
    }

    .faq-icon::before {
      top: 50%;
      left: 0;
      right: 0;
      height: 2px;
      transform: translateY(-50%);
    }

    .faq-icon::after {
      top: 0;
      bottom: 0;
      left: 50%;
      width: 2px;
      transform: translateX(-50%);
    }

    .faq-item.open .faq-icon::after {
      transform: translateX(-50%) rotate(90deg) scaleY(0);
    }

    .faq-item.open .faq-icon::before {
      background: var(--accent-deep);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
      padding: 0 8px;
    }

    .faq-answer-inner {
      padding: 0 8px 20px 0;
      font-size: 14px;
      color: var(--text-2);
      line-height: 1.75;
    }

    /* ===== CTA ===== */
    .cta-section {
      background: var(--bg-deep);
      border-radius: var(--radius-lg);
      padding: 64px 48px;
      color: #fff;
      position: relative;
      overflow: hidden;
    }

    .cta-section::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent, rgba(8, 53, 52, 0.3));
      pointer-events: none;
    }

    .cta-section h2 {
      font-family: var(--font-serif);
      font-size: clamp(1.8rem, 3.4vw, 2.6rem);
      font-weight: 600;
      line-height: 1.3;
      margin-bottom: 16px;
    }

    .cta-section p {
      color: rgba(255, 255, 255, 0.8);
      margin-bottom: 32px;
      max-width: 520px;
    }

    /* ===== 页脚 ===== */
    .site-footer {
      background: var(--bg);
      border-top: 1px solid var(--border);
      padding: 56px 0 0;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1.2fr 1fr;
      gap: 48px;
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 2rem 48px;
    }

    .footer-logo {
      font-family: var(--font-serif);
      font-size: 20px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 12px;
    }

    .footer-desc {
      font-size: 13px;
      color: var(--text-2);
      line-height: 1.7;
      max-width: 260px;
    }

    .footer-col-title {
      font-size: 14px;
      font-weight: 600;
      color: var(--text);
      margin-bottom: 16px;
    }

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

    .footer-links a {
      font-size: 14px;
      color: var(--text-2);
      transition: all 0.3s;
    }

    .footer-links a:hover {
      color: var(--accent-deep);
      padding-left: 4px;
    }

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

    .footer-contact span {
      font-size: 14px;
      color: var(--text-2);
    }

    .footer-qr {
      width: 104px;
      height: 104px;
      background: var(--brand-soft);
      border-radius: var(--radius);
      border: 1px dashed var(--border);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      color: var(--text-3);
      text-align: center;
      line-height: 1.5;
    }

    .footer-bottom {
      max-width: 1280px;
      margin: 0 auto;
      padding: 20px 2rem;
      border-top: 1px solid var(--border);
      font-size: 13px;
      color: var(--text-3);
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .footer-bottom a {
      color: var(--text-3);
    }

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

    /* ===== 通用区块标题 ===== */
    .section-label {
      font-size: 12px;
      font-weight: 600;
      letter-spacing: 0.14em;
      text-transform: uppercase;
      color: var(--accent-deep);
      margin-bottom: 12px;
    }

    .section-title {
      font-family: var(--font-serif);
      font-size: clamp(1.6rem, 3vw, 2.4rem);
      font-weight: 600;
      color: var(--text);
      line-height: 1.3;
    }

    .section-sub {
      font-size: 15px;
      color: var(--text-2);
      margin-top: 12px;
      max-width: 620px;
    }

    .btn-primary {
      background: var(--accent);
      color: var(--brand-deep);
      font-weight: 600;
      font-size: 15px;
      border: none;
      border-radius: var(--radius);
      padding: 0 32px;
      height: 48px;
      cursor: pointer;
      transition: all 0.3s ease-out;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
    }

    .btn-primary:hover {
      background: var(--accent-deep);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(169, 140, 82, 0.28);
    }

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

    .btn-outline {
      background: transparent;
      color: var(--text);
      border: 1px solid var(--text-2);
      border-radius: var(--radius);
      height: 48px;
      padding: 0 32px;
      font-size: 15px;
      font-weight: 500;
      cursor: pointer;
      transition: all 0.3s;
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }

    .btn-outline:hover {
      border-color: var(--accent);
      color: var(--accent-deep);
    }

    /* ===== 卡片hover ===== */
    .card-lift {
      transition: all 0.3s ease-out;
    }

    .card-lift:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-2);
    }

    /* ===== 响应式 ===== */
    @media (max-width: 1024px) {
      .container-main {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
      }

      .index-list-wrap {
        grid-template-columns: 160px 1fr;
        gap: 32px;
      }

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

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

    @media (max-width: 767px) {
      .side-nav-wrap {
        display: none;
      }

      .main-content {
        margin-left: 0;
      }

      .mobile-topbar {
        display: flex;
        position: sticky;
        top: 0;
        left: 0;
        right: 0;
        height: 64px;
        background: var(--bg);
        border-bottom: 1px solid var(--border);
        align-items: center;
        padding: 0 20px;
        z-index: 60;
      }

      .mobile-logo {
        font-family: var(--font-serif);
        font-size: 16px;
        font-weight: 700;
        color: var(--text);
      }

      .hamburger {
        width: 40px;
        height: 40px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 6px;
        background: none;
        border: none;
        cursor: pointer;
      }

      .hamburger span {
        display: block;
        width: 20px;
        height: 2px;
        background: var(--text);
        border-radius: 2px;
        transition: all 0.3s;
      }

      .mobile-drawer {
        display: block;
        position: fixed;
        top: 0;
        left: -280px;
        bottom: 0;
        width: 280px;
        background: var(--surface);
        z-index: 70;
        transition: left 0.3s ease-out;
        padding: 24px;
        box-shadow: 2px 0 20px rgba(14, 59, 58, 0.1);
        overflow-y: auto;
      }

      .mobile-drawer.open {
        left: 0;
      }

      .drawer-logo {
        font-family: var(--font-serif);
        font-size: 18px;
        font-weight: 700;
        color: var(--text);
        margin-bottom: 32px;
      }

      .drawer-links {
        display: flex;
        flex-direction: column;
        gap: 4px;
      }

      .drawer-links a {
        font-size: 16px;
        padding: 12px 8px;
        border-radius: var(--radius);
        color: var(--text-2);
        font-weight: 500;
        transition: all 0.3s;
      }

      .drawer-links a.active,
      .drawer-links a:hover {
        background: var(--brand-soft);
        color: var(--text);
      }

      .drawer-close {
        position: absolute;
        top: 16px;
        right: 16px;
        width: 36px;
        height: 36px;
        border: none;
        background: var(--brand-soft);
        border-radius: var(--radius);
        color: var(--text);
        font-size: 18px;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
      }

      .drawer-mask {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(8, 53, 52, 0.4);
        z-index: 65;
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s;
      }

      .drawer-mask.show {
        opacity: 1;
        visibility: visible;
      }

      .category-hero {
        min-height: 180px;
      }

      .category-hero-content {
        padding: 40px 0 28px;
      }

      .index-list-wrap {
        grid-template-columns: 1fr;
        gap: 0;
      }

      .sticky-index {
        display: none;
      }

      .route-item {
        grid-template-columns: 44px 1fr;
        gap: 16px;
        padding: 24px 0;
      }

      .route-number {
        font-size: 2rem;
      }

      .route-meta {
        grid-column: 2;
        flex-direction: row;
        align-items: center;
        gap: 12px;
        margin-top: 4px;
      }

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

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

      .service-item {
        padding: 24px 20px;
      }

      .form-section {
        padding: 32px 24px;
      }

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

      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
        padding: 0 1.5rem 40px;
      }

      .footer-bottom {
        flex-direction: column;
        gap: 8px;
        padding: 16px 1.5rem;
        text-align: center;
      }

      .cta-section {
        padding: 48px 28px;
        border-radius: 0;
      }
    }

    @media (max-width: 520px) {
      .service-grid {
        grid-template-columns: 1fr;
      }

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

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

      .category-hero h1 {
        font-size: 1.7rem;
      }
    }

    /* ===== 动画 ===== */
    .fade-up {
      opacity: 0;
      transform: translateY(20px);
      animation: fadeUp 0.6s ease-out forwards;
    }

    @keyframes fadeUp {
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    @media (prefers-reduced-motion: reduce) {
      *,
      *::before,
      *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
      }
    }

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

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

    .divider {
      height: 1px;
      background: var(--border);
    }