:root {
  --primary: #C1533D;
  --primary-dark: #A84332;
  --secondary: #C8894B;
  --bg: #FAF5EF;
  --dark: #2A211C;
  --dark-light: #332A24;
  --text: #2C2724;
  --text-secondary: #6B5D54;
  --border: #E8DDD2;
  --accent: #4F7C6A;
  --gradient: linear-gradient(135deg, #C1533D, #C8894B);
  --gradient-soft: linear-gradient(135deg, rgba(193,83,61,.08), rgba(200,137,75,.08));
  --radius-lg: 24px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-default: 0 2px 12px rgba(44,39,36,.06);
  --shadow-hover: 0 12px 32px rgba(44,39,36,.12);
  --shadow-btn: 0 6px 20px rgba(193,83,61,.28);
  --container: 1200px;
  --space-section: 104px;
  --space-section-mobile: 64px;
  --header-h: 64px;
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; transition: color .2s; }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; font-size: 15px; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: var(--space-section) 0; }
.section-header { margin-bottom: 48px; max-width: 720px; }
.section-header .tag { display: inline-block; font-size: 13px; font-weight: 600; color: var(--primary); letter-spacing: .08em; padding: 6px 14px; background: rgba(193,83,61,.08); border: 1px solid rgba(193,83,61,.15); border-radius: 100px; margin-bottom: 16px; }
.section-header h2 { font-size: 34px; font-weight: 700; line-height: 1.3; margin-bottom: 12px; color: var(--text); }
.section-header p { font-size: 15px; color: var(--text-secondary); line-height: 1.8; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-size: 15px; font-weight: 600; padding: 12px 28px; border-radius: var(--radius-md); border: none; transition: all .3s ease; text-decoration: none; }
.btn-primary { background: var(--gradient); color: #fff; box-shadow: var(--shadow-btn); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(193,83,61,.36); color: #fff; }
.btn-primary:active { transform: translateY(0); box-shadow: 0 4px 14px rgba(193,83,61,.24); }
.btn-outline { background: transparent; border: 2px solid var(--primary); color: var(--primary); }
.btn-outline:hover { background: rgba(193,83,61,.06); border-color: var(--primary-dark); color: var(--primary-dark); transform: translateY(-2px); }
.btn-lg { padding: 16px 40px; font-size: 16px; }

/* Header */
.site-header { position: fixed; top: 0; left: 0; right: 0; height: var(--header-h); background: rgba(250,245,239,.92); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid transparent; z-index: 1000; transition: all .3s ease; }
.site-header.scrolled { background: rgba(250,245,239,.88); box-shadow: 0 4px 20px rgba(44,39,36,.06); border-bottom-color: rgba(232,221,210,.7); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); }
.nav-left { display: flex; align-items: center; gap: 32px; }
.logo { font-size: 19px; font-weight: 700; color: var(--text); white-space: nowrap; display: flex; align-items: center; gap: 8px; }
.logo::before { content: ''; display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--gradient); }
.channel-nav { display: flex; gap: 20px; list-style: none; }
.channel-nav a { font-size: 14px; color: var(--text-secondary); font-weight: 500; padding: 6px 2px; border-bottom: 2px solid transparent; transition: all .25s; position: relative; }
.channel-nav a:hover { color: var(--primary); border-bottom-color: var(--primary); }
.nav-right { display: flex; align-items: center; gap: 16px; }
.search-box { display: flex; align-items: center; background: #fff; border: 1px solid var(--border); border-radius: 100px; padding: 4px 6px 4px 16px; height: 38px; width: 210px; transition: border-color .25s, box-shadow .25s; }
.search-box:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(193,83,61,.12); }
.search-box input { width: 100%; border: none; outline: none; background: transparent; font-size: 13px; color: var(--text); }
.search-box button { background: var(--gradient); border: none; width: 30px; height: 30px; border-radius: 50%; color: #fff; font-size: 13px; display: flex; align-items: center; justify-content: center; transition: transform .2s; }
.search-box button:hover { transform: scale(1.08); }
.nav-cta { padding: 8px 20px; font-size: 14px; }
.menu-toggle { display: none; background: none; border: none; font-size: 24px; color: var(--text); width: 40px; height: 40px; border-radius: 8px; transition: background .2s; }
.menu-toggle:hover { background: rgba(44,39,36,.06); }

/* Mobile drawer */
.mobile-drawer { position: fixed; top: 0; right: -320px; width: 300px; height: 100vh; background: var(--bg); z-index: 1002; padding: 80px 32px 32px; transition: right .3s ease; box-shadow: -10px 0 30px rgba(44,39,36,.12); }
.mobile-drawer.open { right: 0; }
.drawer-overlay { position: fixed; inset: 0; background: rgba(44,39,36,.45); z-index: 1001; opacity: 0; visibility: hidden; transition: opacity .3s, visibility .3s; }
.drawer-overlay.active { opacity: 1; visibility: visible; }
.mobile-drawer nav { display: flex; flex-direction: column; gap: 24px; }
.mobile-drawer nav a { font-size: 16px; font-weight: 600; color: var(--text); padding: 8px 0; border-bottom: 1px solid var(--border); }
.mobile-drawer .drawer-close { position: absolute; top: 20px; right: 20px; background: none; border: none; font-size: 24px; color: var(--text); width: 36px; height: 36px; border-radius: 8px; }
.mobile-drawer .drawer-close:hover { background: rgba(44,39,36,.06); }

/* Hero */
.hero { position: relative; padding: calc(var(--header-h) + 56px) 0 72px; background: linear-gradient(135deg, #FAF5EF 0%, #FFF9F2 50%, #FDF2E8 100%); overflow: hidden; }
.hero::before { content: ''; position: absolute; inset: 0; background-image: linear-gradient(rgba(44,39,36,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(44,39,36,.035) 1px, transparent 1px); background-size: 44px 44px; pointer-events: none; }
.hero::after { content: ''; position: absolute; width: 480px; height: 480px; border-radius: 50%; background: radial-gradient(circle, rgba(200,137,75,.14), transparent 70%); top: -120px; right: -80px; pointer-events: none; }
.hero-inner { display: flex; align-items: center; gap: 64px; position: relative; z-index: 2; }
.hero-content { flex: 0 0 55%; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: #fff; border: 1px solid var(--border); padding: 8px 16px; border-radius: 100px; font-size: 13px; color: var(--text-secondary); margin-bottom: 24px; box-shadow: var(--shadow-default); }
.hero-badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); }
.hero h1 { font-size: 48px; font-weight: 800; line-height: 1.22; letter-spacing: -0.5px; margin-bottom: 20px; color: var(--text); }
.hero h1 .highlight { background: linear-gradient(120deg, var(--primary), var(--secondary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero-subtitle { font-size: 16px; line-height: 1.8; color: var(--text-secondary); margin-bottom: 32px; max-width: 520px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 28px; }
.hero-trust { display: flex; gap: 24px; flex-wrap: wrap; }
.trust-item { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-secondary); }
.trust-item strong { font-size: 15px; color: var(--text); font-weight: 700; }
.hero-visual { flex: 0 0 45%; position: relative; min-height: 460px; }
.hero-visual .main-img { width: 78%; height: 380px; object-fit: cover; border-radius: var(--radius-lg); box-shadow: 0 20px 44px rgba(44,39,36,.18); border: 4px solid #fff; }
.hero-visual .float-img { position: absolute; border-radius: var(--radius-md); object-fit: cover; border: 3px solid #fff; box-shadow: 0 12px 28px rgba(44,39,36,.14); }
.float-img-1 { width: 52%; height: 180px; top: -12px; right: 0; }
.float-img-2 { width: 42%; height: 150px; bottom: -8px; left: -6px; }
.hero-visual::after { content: '西安耍耍论坛网 · 西安耍耍品茶论坛'; position: absolute; bottom: -18px; right: -8px; background: var(--dark); color: #fff; font-size: 12px; font-weight: 600; padding: 6px 16px; border-radius: 100px; letter-spacing: .04em; }

/* Stats */
.stats-section { background: var(--dark); padding: 72px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 48px; }
.stat-item { text-align: center; position: relative; }
.stat-item:not(:last-child)::after { content: ''; position: absolute; right: -24px; top: 50%; transform: translateY(-50%); width: 1px; height: 48px; background: rgba(255,255,255,.12); }
.stat-num { font-size: 38px; font-weight: 800; color: #fff; font-variant-numeric: tabular-nums; line-height: 1.2; }
.stat-num span { font-size: 22px; color: var(--secondary); }
.stat-label { font-size: 13px; color: rgba(255,255,255,.6); margin-top: 6px; font-weight: 500; }
.stat-trend { display: inline-flex; align-items: center; gap: 4px; font-size: 12px; color: var(--accent); font-weight: 600; margin-top: 4px; }

/* Topics */
.topics-section { background: var(--bg); }
.topic-list { display: flex; flex-direction: column; gap: 16px; }
.topic-item { display: flex; align-items: center; gap: 24px; background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 24px 28px; transition: transform .3s, box-shadow .3s, border-color .3s; position: relative; overflow: hidden; }
.topic-item::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: transparent; transition: background .3s; }
.topic-item:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); border-color: rgba(193,83,61,.35); }
.topic-item:hover::before { background: var(--gradient); }
.topic-icon { width: 52px; height: 52px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 22px; background: var(--gradient-soft); border: 1px solid rgba(193,83,61,.12); flex-shrink: 0; }
.topic-main { flex: 1; min-width: 0; }
.topic-title { font-size: 18px; font-weight: 700; color: var(--text); margin-bottom: 4px; }
.topic-desc { font-size: 14px; color: var(--text-secondary); line-height: 1.65; }
.topic-meta { flex-shrink: 0; display: flex; flex-direction: column; align-items: flex-end; gap: 6px; }
.topic-tag { display: inline-block; font-size: 12px; font-weight: 600; padding: 4px 12px; border-radius: 100px; background: rgba(193,83,61,.08); color: var(--primary); }
.topic-tag.hot { background: rgba(193,83,61,.12); color: var(--primary); }
.topic-tag.new { background: rgba(79,124,106,.1); color: var(--accent); }
.topic-count { font-size: 12px; color: var(--text-secondary); }

/* Compare */
.compare-section { background: linear-gradient(180deg, #FDF6F0 0%, #FAF5EF 100%); }
.compare-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: stretch; }
.compare-card { background: #fff; border-radius: var(--radius-lg); padding: 40px 36px; border: 1px solid var(--border); box-shadow: var(--shadow-default); transition: transform .3s, box-shadow .3s; }
.compare-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.compare-card.traditional { background: #F7F3EE; }
.compare-card.modern { background: #fff; border: 2px solid transparent; background-image: linear-gradient(#fff, #fff), var(--gradient); background-origin: border-box; background-clip: padding-box, border-box; }
.compare-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 24px; color: var(--text); display: flex; align-items: center; gap: 12px; }
.compare-card.modern h3 { color: var(--primary); }
.compare-badge { display: inline-block; font-size: 12px; padding: 4px 12px; border-radius: 100px; background: rgba(79,124,106,.1); color: var(--accent); font-weight: 600; vertical-align: middle; }
.compare-card ul { list-style: none; display: flex; flex-direction: column; gap: 16px; margin-bottom: 28px; }
.compare-card li { display: flex; gap: 12px; align-items: flex-start; font-size: 14px; line-height: 1.7; color: var(--text-secondary); }
.compare-card li::before { content: '●'; font-size: 8px; margin-top: 8px; color: var(--text-secondary); flex-shrink: 0; }
.compare-card.modern li::before { color: var(--accent); }
.compare-note { font-size: 14px; font-weight: 600; color: var(--text); background: rgba(200,137,75,.1); border-left: 3px solid var(--secondary); padding: 12px 16px; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }

/* News */
.news-section { background: var(--bg); }
.news-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px; }
.news-list { display: flex; flex-direction: column; }
.news-item { display: flex; gap: 20px; padding: 20px 0; border-bottom: 1px solid var(--border); transition: padding-left .3s; }
.news-item:last-child { border-bottom: none; }
.news-item:hover { padding-left: 8px; }
.news-date { flex-shrink: 0; width: 64px; text-align: center; background: #fff; border: 1px solid var(--border); border-radius: var(--radius-md); padding: 8px 0; height: fit-content; }
.news-day { font-size: 20px; font-weight: 700; color: var(--primary); line-height: 1.2; }
.news-month { font-size: 11px; color: var(--text-secondary); }
.news-item h4 { font-size: 15px; font-weight: 600; color: var(--text); margin-bottom: 4px; line-height: 1.5; }
.news-item h4 a { color: var(--text); }
.news-item h4 a:hover { color: var(--primary); }
.news-item p { font-size: 13px; color: var(--text-secondary); line-height: 1.6; }
.news-sidebar { display: flex; flex-direction: column; gap: 20px; }
.news-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 28px; box-shadow: var(--shadow-default); }
.news-card h4 { font-size: 16px; font-weight: 700; margin-bottom: 16px; color: var(--text); }
.news-card ul { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.news-card a { font-size: 13px; color: var(--text-secondary); display: flex; justify-content: space-between; align-items: center; padding: 8px 0; border-bottom: 1px dashed var(--border); transition: color .2s; }
.news-card a:last-child { border-bottom: none; }
.news-card a:hover { color: var(--primary); }
.news-card a .hot-tag { background: rgba(193,83,61,.1); color: var(--primary); font-size: 11px; padding: 2px 8px; border-radius: 100px; font-weight: 600; }

/* FAQ */
.faq-section { background: #FDF8F3; }
.faq-wrap { max-width: 860px; margin: 0 auto; }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg); margin-bottom: 16px; overflow: hidden; transition: box-shadow .25s; }
.faq-item.active { box-shadow: 0 4px 20px rgba(44,39,36,.08); border-color: rgba(193,83,61,.25); }
.faq-question { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 20px 28px; background: none; border: none; font-size: 16px; font-weight: 600; color: var(--text); text-align: left; transition: background .2s; }
.faq-question:hover { background: rgba(193,83,61,.03); }
.faq-icon { width: 24px; height: 24px; border-radius: 50%; background: var(--gradient); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 14px; transition: transform .3s; flex-shrink: 0; }
.faq-item.active .faq-icon { transform: rotate(45deg); }
.faq-answer { max-height: 0; padding: 0 28px; overflow: hidden; transition: max-height .28s ease, padding .28s ease; font-size: 14px; line-height: 1.8; color: var(--text-secondary); }
.faq-item.active .faq-answer { max-height: 320px; padding: 0 28px 22px; }

/* Contact Form */
.contact-section { background: var(--dark); position: relative; overflow: hidden; }
.contact-section::before { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse at 85% 10%, rgba(200,137,75,.15), transparent 50%); }
.contact-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; position: relative; z-index: 2; }
.contact-info h2 { font-size: 32px; font-weight: 700; color: #fff; margin-bottom: 16px; line-height: 1.3; }
.contact-info p { font-size: 15px; color: rgba(255,255,255,.65); line-height: 1.8; margin-bottom: 20px; }
.contact-info img { width: 100%; height: 220px; object-fit: cover; border-radius: var(--radius-lg); margin-top: 16px; box-shadow: 0 16px 40px rgba(0,0,0,.25); }
.contact-form-card { background: #fff; border-radius: var(--radius-lg); padding: 40px; box-shadow: 0 24px 60px rgba(0,0,0,.3); border-top: 4px solid transparent; border-image: var(--gradient) 1; border-radius: var(--radius-lg) var(--radius-lg) var(--radius-lg) var(--radius-lg); }
.contact-form-card h3 { font-size: 22px; font-weight: 700; margin-bottom: 6px; color: var(--text); }
.contact-form-card .form-hint { font-size: 13px; color: var(--text-secondary); margin-bottom: 28px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; color: var(--text); margin-bottom: 8px; }
.form-group input, .form-group select, .form-group textarea { width: 100%; height: 48px; border: 1px solid var(--border); border-radius: var(--radius-md); padding: 0 16px; font-size: 14px; color: var(--text); background: #fff; transition: border-color .25s, box-shadow .25s; outline: none; }
.form-group textarea { height: 100px; padding: 12px 16px; resize: vertical; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(193,83,61,.12); }
.form-group select { appearance: auto; cursor: pointer; }
.form-submit { width: 100%; height: 50px; font-size: 16px; }

/* Footer */
.site-footer { background: var(--dark); padding: 72px 0 32px; color: rgba(255,255,255,.7); }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 56px; }
.footer-brand .f-logo { font-size: 20px; font-weight: 700; color: #fff; margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }
.footer-brand .f-logo::before { content: ''; width: 8px; height: 8px; border-radius: 50%; background: var(--gradient); }
.footer-brand p { font-size: 13px; line-height: 1.8; color: rgba(255,255,255,.5); margin-bottom: 20px; }
.footer-col h4 { font-size: 14px; font-weight: 600; color: #fff; margin-bottom: 20px; letter-spacing: .06em; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.footer-col ul a { font-size: 13px; color: rgba(255,255,255,.5); transition: color .2s, padding-left .2s; }
.footer-col ul a:hover { color: var(--secondary); padding-left: 6px; }
.footer-contact li { font-size: 13px; color: rgba(255,255,255,.5); line-height: 1.7; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding-top: 24px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.footer-bottom p { font-size: 12px; color: rgba(255,255,255,.4); }
.footer-bottom .tech { font-size: 12px; color: rgba(255,255,255,.3); }

/* Responsive */
@media (max-width: 1023px) {
  .hero-inner { flex-direction: column; gap: 48px; }
  .hero-content { flex: 1 1 100%; text-align: center; }
  .hero-subtitle { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .hero-trust { justify-content: center; }
  .hero-visual { flex: 1 1 100%; max-width: 520px; margin: 0 auto; width: 100%; min-height: auto; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 40px 24px; }
  .stat-item::after { display: none; }
  .compare-grid { grid-template-columns: 1fr; gap: 24px; }
  .news-grid { grid-template-columns: 1fr; }
  .contact-wrap { grid-template-columns: 1fr; gap: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .channel-nav { display: none; }
  .search-box { display: none; }
  .menu-toggle { display: flex; align-items: center; justify-content: center; }
}
@media (max-width: 767px) {
  :root { --space-section: var(--space-section-mobile); }
  .section-header h2 { font-size: 26px; }
  .hero { padding-top: calc(var(--header-h) + 40px); }
  .hero h1 { font-size: 34px; }
  .hero-subtitle { font-size: 15px; }
  .hero-visual .main-img { width: 100%; height: 260px; object-position: center; }
  .float-img-1 { width: 60%; height: 120px; top: 0; right: 0; }
  .float-img-2 { width: 50%; height: 100px; bottom: 0; left: 0; }
  .hero-visual::after { font-size: 11px; padding: 5px 12px; bottom: -12px; }
  .topic-item { flex-direction: column; align-items: flex-start; gap: 12px; padding: 20px; }
  .topic-meta { flex-direction: row; align-items: center; gap: 12px; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 32px 16px; }
  .stat-num { font-size: 30px; }
  .compare-card { padding: 28px 22px; }
  .faq-question { font-size: 15px; padding: 16px 20px; }
  .faq-answer { padding: 0 20px; }
  .faq-item.active .faq-answer { padding: 0 20px 18px; }
  .contact-form-card { padding: 28px 20px; }
  .news-item { gap: 12px; }
  .news-date { width: 52px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .nav-cta { display: none; }
}