/* roulang page: index */
:root{
  --primary:#1F3D33;
  --primary-dark:#162C25;
  --accent:#C4552F;
  --bg:#F7F3EC;
  --bg-alt:#EFE9DF;
  --bg-soft:#FBF8F2;
  --card:#FFFFFF;
  --line:#E2DACB;
  --text:#22201D;
  --muted:#6B655C;
  --success:#3E7A5A;
  --warn:#B4881F;
  --radius-card:10px;
  --radius-btn:6px;
  --radius-badge:4px;
  --shadow-hover:0 8px 24px rgba(31,61,51,.10);
  --shadow-nav:0 4px 16px rgba(31,61,51,.08);
  --container:1200px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--accent)}
button{font:inherit;cursor:pointer}
input{font:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.serif{font-family:"Noto Serif SC","Songti SC","SimSun",serif}
.num{font-variant-numeric:tabular-nums}

/* ---------- 导航 ---------- */
.site-nav{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--bg-soft);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-nav.is-stuck{box-shadow:var(--shadow-nav)}
.nav-top-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:64px;
  transition:height .2s ease;
}
.site-nav.is-stuck .nav-top-inner{height:56px}
.nav-brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:32px;height:32px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary);
  color:var(--bg-soft);
  border-radius:8px;
  font-size:16px;
  font-weight:700;
  letter-spacing:0;
}
.brand-name{
  font-size:18px;
  font-weight:700;
  color:var(--primary);
  letter-spacing:.5px;
  white-space:nowrap;
}
.nav-search{
  position:relative;
  flex:1 1 auto;
  max-width:360px;
  display:flex;
  align-items:center;
}
.nav-search input{
  width:100%;
  height:36px;
  padding:0 40px 0 14px;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  background:var(--card);
  color:var(--text);
  font-size:14px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search input::placeholder{color:#9D968B}
.nav-search input:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(31,61,51,.10);
}
.nav-search button{
  position:absolute;right:6px;top:50%;transform:translateY(-50%);
  width:28px;height:28px;
  border:0;background:transparent;
  color:var(--muted);
  display:flex;align-items:center;justify-content:center;
  border-radius:4px;
}
.nav-search button:hover{color:var(--primary)}
.nav-hotwords{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:12px;
  color:var(--muted);
  flex:0 1 auto;
  white-space:nowrap;
  overflow:hidden;
}
.nav-hotwords span{color:#9D968B}
.nav-hotwords a{color:var(--muted)}
.nav-hotwords a:hover{color:var(--primary)}
.nav-cta{
  height:36px;
  padding:0 18px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  flex:0 0 auto;
}
.nav-channels-bar{background:var(--bg-soft)}
.nav-channels-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:48px;
}
.nav-channels{
  display:flex;
  align-items:center;
  gap:28px;
  height:100%;
  overflow-x:auto;
  scrollbar-width:none;
}
.nav-channels::-webkit-scrollbar{display:none}
.nav-channels a{
  position:relative;
  height:100%;
  display:inline-flex;
  align-items:center;
  font-size:14px;
  color:var(--muted);
  white-space:nowrap;
}
.nav-channels a::after{
  content:"";
  position:absolute;left:0;right:0;bottom:0;
  height:2px;background:transparent;
  transition:background .2s ease;
}
.nav-channels a:hover{color:var(--primary)}
.nav-channels a.is-active{color:var(--primary);font-weight:600}
.nav-channels a.is-active::after{background:var(--primary)}
.nav-trends{
  display:flex;
  align-items:center;
  gap:8px;
  overflow-x:auto;
  scrollbar-width:none;
  flex:0 1 auto;
}
.nav-trends::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--card);
  font-size:12px;
  color:var(--muted);
  white-space:nowrap;
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.chip:hover{color:var(--primary);border-color:var(--primary);background:rgba(31,61,51,.05)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn--primary{background:var(--primary);color:var(--bg-soft);border-color:var(--primary)}
.btn--primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff;transform:translateY(-1px)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{background:transparent;color:var(--primary);border-color:var(--primary)}
.btn--ghost:hover{background:rgba(31,61,51,.08);color:var(--primary-dark)}
.btn--light{background:var(--bg-soft);color:var(--primary);border-color:var(--bg-soft)}
.btn--light:hover{background:#fff;color:var(--primary-dark);transform:translateY(-1px)}
.btn--sm{height:36px;padding:0 16px;font-size:14px}
.link-more{
  font-size:14px;
  color:var(--primary);
  border-bottom:1px solid currentColor;
  padding-bottom:2px;
}
.link-more:hover{color:var(--accent)}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0}
.section--alt{background:var(--bg-alt)}
.section-label{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:12px;
  letter-spacing:1px;
  color:var(--primary);
  text-transform:uppercase;
  margin-bottom:16px;
}
.section-label .idx{color:var(--accent);font-weight:700}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
  flex-wrap:wrap;
}
.section-title{
  font-size:28px;
  line-height:1.35;
  font-weight:700;
  letter-spacing:-.3px;
  color:var(--text);
}
.section-sub{
  font-size:15px;
  color:var(--muted);
  max-width:620px;
  margin-top:10px;
}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:72px 0 88px;
  overflow:hidden;
  background:linear-gradient(180deg,var(--bg-soft),var(--bg));
  border-bottom:1px solid var(--line);
}
.hero::after{
  content:"";
  position:absolute;
  right:-140px;top:-120px;
  width:420px;height:420px;
  border:1.5px solid var(--primary);
  border-radius:50%;
  opacity:.10;
  pointer-events:none;
}
.hero-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
  position:relative;
  z-index:2;
}
.hero-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:1px;
  color:var(--accent);
  background:rgba(196,85,47,.08);
  border:1px solid rgba(196,85,47,.22);
  padding:5px 12px;
  border-radius:var(--radius-badge);
  margin-bottom:22px;
}
.hero h1{
  font-size:44px;
  line-height:1.22;
  letter-spacing:-.5px;
  font-weight:700;
  color:var(--primary);
  font-family:"Noto Serif SC","Songti SC","SimSun",serif;
}
.hero-lead{
  margin-top:18px;
  font-size:17px;
  color:var(--muted);
  max-width:520px;
}
.hero-actions{
  display:flex;
  gap:14px;
  margin-top:32px;
  flex-wrap:wrap;
}
.hero-stats{
  display:flex;
  gap:40px;
  margin-top:44px;
  padding-top:28px;
  border-top:1px solid var(--line);
  flex-wrap:wrap;
}
.hero-stats .stat strong{
  display:block;
  font-size:28px;
  line-height:1.2;
  font-weight:700;
  color:var(--primary);
  font-variant-numeric:tabular-nums;
}
.hero-stats .stat span{
  display:block;
  font-size:12px;
  color:var(--muted);
  letter-spacing:.5px;
  margin-top:6px;
}
.hero-figure{
  position:relative;
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--card);
  box-shadow:0 10px 30px rgba(31,61,51,.07);
  aspect-ratio:4/3;
}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.hero-figure .figure-tag{
  position:absolute;
  top:14px;right:14px;
  background:var(--bg-soft);
  color:var(--primary);
  font-size:12px;
  letter-spacing:.5px;
  padding:5px 10px;
  border-radius:var(--radius-badge);
  border:1px solid var(--line);
}

/* ---------- 卖点 ---------- */
.value-list{border-top:1px solid var(--line)}
.value-item{
  display:grid;
  grid-template-columns:80px 220px 1fr;
  gap:24px;
  align-items:start;
  padding:28px 8px;
  border-bottom:1px solid var(--line);
  transition:background .2s ease;
}
.value-item:hover{background:var(--bg-soft)}
.value-no{
  font-size:13px;
  font-weight:700;
  color:var(--accent);
  letter-spacing:1px;
  font-variant-numeric:tabular-nums;
  padding-top:4px;
}
.value-item h3{font-size:20px;font-weight:700;color:var(--text);line-height:1.5}
.value-item p{font-size:15px;color:var(--muted);line-height:1.85;max-width:640px}

/* ---------- 目录演示 ---------- */
.demo-grid{
  display:grid;
  grid-template-columns:320px 1fr;
  gap:32px;
  align-items:start;
}
.channel-list{
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:var(--card);
  overflow:hidden;
}
.channel-list li + li{border-top:1px solid var(--line)}
.channel-list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:14px 18px;
  font-size:15px;
  color:var(--muted);
  min-height:52px;
}
.channel-list a .count{font-size:12px;color:#9D968B;font-variant-numeric:tabular-nums}
.channel-list a:hover{background:var(--bg-soft);color:var(--primary)}
.channel-list a.is-current{color:var(--primary);font-weight:600;background:rgba(31,61,51,.05);box-shadow:inset 3px 0 0 var(--primary)}
.channel-list a.is-current .count{color:var(--accent)}
.preview-card{
  display:grid;
  grid-template-columns:280px 1fr;
  gap:0;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:var(--card);
  overflow:hidden;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.preview-card:hover{box-shadow:var(--shadow-hover);border-color:rgba(31,61,51,.30)}
.preview-cover{overflow:hidden;background:var(--bg-alt);aspect-ratio:16/11}
.preview-cover img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease}
.preview-card:hover .preview-cover img{transform:scale(1.03)}
.preview-body{padding:26px 28px;display:flex;flex-direction:column;gap:12px}
.preview-body h3{font-size:20px;font-weight:700;color:var(--text);line-height:1.45}
.preview-body p{font-size:14px;color:var(--muted);line-height:1.8}
.preview-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.preview-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
.preview-foot .arrow{font-size:18px;color:var(--primary);transition:transform .2s ease}
.preview-card:hover .preview-foot .arrow{transform:translateX(4px)}

/* ---------- 证据 ---------- */
.proof-wrap{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:start;
}
.proof-metrics{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
}
.proof-metrics .metric{
  background:var(--card);
  padding:24px 22px;
}
.proof-metrics .metric strong{
  display:block;
  font-size:30px;
  font-weight:700;
  color:var(--primary);
  line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.proof-metrics .metric span{
  display:block;
  font-size:13px;
  color:var(--muted);
  margin-top:8px;
}
.quote-list{display:flex;flex-direction:column;gap:18px}
.quote{
  background:var(--card);
  border:1px solid var(--line);
  border-left:3px solid var(--accent);
  border-radius:var(--radius-card);
  padding:20px 22px;
  transition:box-shadow .2s ease,transform .2s ease;
}
.quote:hover{box-shadow:var(--shadow-hover);transform:translateX(2px)}
.quote p{font-size:15px;color:var(--text);line-height:1.8}
.quote .who{margin-top:12px;font-size:12px;color:var(--muted);letter-spacing:.5px}
.quote:nth-child(2){margin-left:24px}
.quote:nth-child(3){margin-left:48px}

/* ---------- 收录方案 ---------- */
.price-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  align-items:start;
}
.price-card{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:30px 26px;
  display:flex;
  flex-direction:column;
  gap:18px;
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.price-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.price-card--feature{border:2px solid var(--primary);padding-top:34px}
.price-card .rec{
  position:absolute;
  top:-13px;left:26px;
  background:var(--accent);
  color:#FBF8F2;
  font-size:12px;
  letter-spacing:1px;
  padding:3px 10px;
  border-radius:var(--radius-badge);
}
.price-card h3{font-size:18px;font-weight:700;color:var(--text)}
.price-card .price{
  font-size:32px;
  font-weight:700;
  color:var(--primary);
  line-height:1.2;
  font-variant-numeric:tabular-nums;
  font-family:"Noto Serif SC","Songti SC",serif;
}
.price-card .price small{font-size:13px;font-weight:400;color:var(--muted);margin-left:6px;font-family:inherit}
.price-card .price-note{font-size:13px;color:var(--muted);margin-top:-8px}
.perks{display:flex;flex-direction:column;gap:10px;padding:18px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.perks li{display:flex;gap:10px;font-size:14px;color:var(--muted);line-height:1.7}
.perks li::before{content:"✓";color:var(--success);font-weight:700;flex:0 0 auto}
.price-card .btn{width:100%}

/* ---------- 最新信息 ---------- */
.news-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.card{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  transition:box-shadow .2s ease,border-color .2s ease,transform .2s ease;
  color:var(--text);
}
.card:hover{box-shadow:var(--shadow-hover);border-color:rgba(31,61,51,.30);transform:translateY(-2px);color:var(--text)}
.card-cover{position:relative;overflow:hidden;aspect-ratio:16/9;background:var(--bg-alt)}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease}
.card:hover .card-cover img{transform:scale(1.03)}
.card-body{padding:20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.badge{
  display:inline-flex;
  align-items:center;
  align-self:flex-start;
  font-size:12px;
  color:var(--primary);
  background:rgba(31,61,51,.08);
  padding:3px 9px;
  border-radius:var(--radius-badge);
  letter-spacing:.5px;
}
.card-title{
  font-size:18px;
  line-height:1.45;
  font-weight:700;
  color:var(--text);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  transition:color .2s ease;
}
.card:hover .card-title{color:var(--primary)}
.card-desc{
  font-size:14px;
  line-height:1.7;
  color:var(--muted);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-foot{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:12px;
  color:var(--muted);
  letter-spacing:.5px;
}
.card-foot .arrow{color:var(--primary);font-size:16px;transition:transform .2s ease}
.card:hover .card-foot .arrow{transform:translateX(4px)}
.empty-state{
  grid-column:1/-1;
  min-height:200px;
  border:1px dashed var(--line);
  border-radius:var(--radius-card);
  background:var(--bg-soft);
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:12px;
  padding:28px;
  text-align:center;
}
.empty-state .empty-icon{font-size:26px;color:var(--accent);line-height:1}
.empty-state p{font-size:14px;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq{max-width:800px;margin:0 auto;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:20px 4px;
  font-size:16px;
  font-weight:700;
  color:var(--text);
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-item summary::after{
  content:"+";
  flex:0 0 auto;
  width:26px;height:26px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);
  border-radius:50%;
  color:var(--primary);
  font-weight:400;
  font-size:16px;
  line-height:1;
  transition:transform .2s ease,background .2s ease,color .2s ease;
}
.faq-item[open] summary::after{content:"−";background:var(--primary);color:var(--bg-soft);border-color:var(--primary);transform:rotate(180deg)}
.faq-answer{
  padding:0 4px 22px;
  font-size:15px;
  line-height:1.8;
  color:var(--muted);
  max-width:720px;
  animation:fadeIn .2s ease;
}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  background:var(--primary);
  color:var(--bg-soft);
  padding:72px 0;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  left:-120px;bottom:-180px;
  width:360px;height:360px;
  border:1.5px solid var(--bg-soft);
  border-radius:50%;
  opacity:.12;
  pointer-events:none;
}
.cta-inner{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
  flex-wrap:wrap;
}
.cta-inner h2{
  font-size:28px;
  line-height:1.4;
  font-weight:700;
  color:#fff;
  letter-spacing:-.3px;
}
.cta-inner p{margin-top:10px;font-size:15px;color:rgba(251,248,242,.78);max-width:560px}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--bg-alt);
  border-top:1px solid var(--line);
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid var(--line);
}
.footer-brand{display:flex;flex-direction:column;gap:14px}
.footer-brand .nav-brand{gap:10px}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.8;max-width:280px}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:var(--text);
  margin-bottom:16px;
  letter-spacing:.5px;
}
.footer-col li + li{margin-top:10px}
.footer-col a,.footer-col span{font-size:14px;color:var(--muted)}
.footer-col a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px}
.footer-bottom{
  padding-top:24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--muted);
}
.footer-bottom .compliance{font-size:12px;color:#8B857A}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;
  right:24px;bottom:24px;
  z-index:70;
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:48px;
  padding:0 22px;
  background:var(--primary);
  color:var(--bg-soft);
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  box-shadow:0 10px 24px rgba(31,61,51,.22);
  opacity:0;
  visibility:hidden;
  transform:translateY(8px);
  transition:opacity .25s ease,transform .25s ease,background .2s ease,visibility .25s ease;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{background:var(--primary-dark);color:#fff}
.float-cta .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block}

/* ---------- 锚点偏移 ---------- */
#top,#value,#demo,#proof,#price,#news,#faq,#cta{scroll-margin-top:120px}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero h1{font-size:38px}
  .nav-hotwords{display:none}
  .preview-card{grid-template-columns:220px 1fr}
}
@media (max-width:991px){
  .section{padding:72px 0}
  .hero{padding:56px 0 72px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-figure{aspect-ratio:16/10}
  .demo-grid{grid-template-columns:1fr}
  .proof-wrap{grid-template-columns:1fr;gap:32px}
  .price-grid{grid-template-columns:1fr}
  .price-card--feature{order:-1}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .nav-search{max-width:260px}
  #top,#value,#demo,#proof,#price,#news,#faq,#cta{scroll-margin-top:112px}
}
@media (max-width:767px){
  body{padding-bottom:64px}
  .container{padding:0 16px}
  .section{padding:56px 0}
  .hero{padding:40px 0 56px}
  .hero h1{font-size:30px;line-height:1.3}
  .hero-lead{font-size:15px}
  .hero-stats{gap:24px;margin-top:32px}
  .hero-stats .stat strong{font-size:24px}
  .section-title{font-size:22px}
  .nav-search{display:none}
  .nav-top-inner{height:56px;gap:12px}
  .site-nav.is-stuck .nav-top-inner{height:52px}
  .nav-cta{height:32px;padding:0 14px;font-size:13px}
  .brand-name{font-size:16px}
  .value-item{grid-template-columns:52px 1fr;gap:12px 16px;padding:22px 4px}
  .value-item p{grid-column:1/-1}
  .preview-card{grid-template-columns:1fr}
  .preview-cover{aspect-ratio:16/9}
  .quote:nth-child(2),.quote:nth-child(3){margin-left:0}
  .news-grid{grid-template-columns:1fr}
  .proof-metrics{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .cta-inner h2{font-size:22px}
  .float-cta{
    right:0;left:0;bottom:0;
    height:56px;
    border-radius:0;
    justify-content:center;
    padding:0 16px;
    padding-bottom:env(safe-area-inset-bottom);
    box-shadow:0 -4px 16px rgba(31,61,51,.16);
  }
  #top,#value,#demo,#proof,#price,#news,#faq,#cta{scroll-margin-top:104px}
}
@media (max-width:479px){
  .hero h1{font-size:26px}
  .nav-channels{gap:20px}
  .nav-channels a{font-size:13px}
  .nav-trends{display:none}
  .hero-stats{flex-wrap:wrap;gap:20px 32px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important;animation:none!important}
}

/* roulang page: article */
:root{
  --brand:#1F3D33;
  --brand-dark:#162C25;
  --accent:#C4552F;
  --bg:#F7F3EC;
  --bg-alt:#EFE9DF;
  --bg-soft:#FBF7EF;
  --card:#FFFFFF;
  --line:#E2DACB;
  --text:#22201D;
  --muted:#6B655C;
  --inverse:#FBF8F2;
  --ok:#3E7A5A;
  --warn:#B4881F;
  --radius-card:10px;
  --radius-btn:6px;
  --radius-badge:4px;
  --shadow-card:0 8px 24px rgba(31,61,51,.10);
  --shadow-nav:0 4px 16px rgba(31,61,51,.08);
  --container:1200px;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-serif:"Noto Serif SC","Songti SC",Georgia,serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease}
a:hover{color:var(--accent)}
button{font-family:inherit}
input,button,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:-.2px}
p{margin:0 0 16px}
ul,ol{margin:0;padding:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
[id]{scroll-margin-top:120px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- 导航 ---------- */
.site-nav{position:sticky;top:0;z-index:120;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .2s ease}
.site-nav.is-stuck{box-shadow:var(--shadow-nav)}
.nav-top-inner{display:flex;align-items:center;gap:20px;height:64px;transition:height .2s ease}
.site-nav.is-stuck .nav-top-inner{height:56px}
.nav-brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--brand)}
.nav-brand:hover{color:var(--brand)}
.brand-mark{width:34px;height:34px;border-radius:9px;background:var(--brand);color:var(--inverse);display:grid;place-items:center;font-family:var(--font-serif);font-size:18px;font-weight:700;flex:0 0 auto}
.brand-name{font-size:19px;font-weight:700;letter-spacing:.5px;white-space:nowrap}
.nav-search{flex:1 1 240px;max-width:340px;display:flex;align-items:center;gap:4px;height:36px;padding:0 4px 0 12px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-btn);transition:border-color .2s ease,box-shadow .2s ease}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,61,51,.10)}
.nav-search input{flex:1;min-width:0;height:100%;border:0;background:transparent;font-size:13px;outline:none}
.nav-search input::placeholder{color:#A39C90}
.nav-search button{display:grid;place-items:center;width:30px;height:30px;border:0;border-radius:5px;background:transparent;color:var(--muted);cursor:pointer;transition:background-color .2s ease,color .2s ease}
.nav-search button:hover{background:var(--bg-alt);color:var(--brand)}
.nav-hotwords{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--muted);white-space:nowrap}
.nav-hotwords > span{color:#9A9387}
.nav-hotwords a{font-size:12px;color:var(--muted)}
.nav-hotwords a:hover{color:var(--brand)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:36px;padding:0 18px;border:1px solid transparent;border-radius:var(--radius-btn);font-size:14px;font-weight:600;cursor:pointer;white-space:nowrap;transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease}
.btn--primary{background:var(--brand);color:var(--inverse)}
.btn--primary:hover{background:var(--brand-dark);color:var(--inverse);transform:translateY(-1px)}
.btn--ghost{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn--ghost:hover{background:rgba(31,61,51,.08);color:var(--brand)}
.btn--light{background:var(--inverse);color:var(--brand)}
.btn--light:hover{background:#fff;color:var(--brand-dark);transform:translateY(-1px)}
.nav-cta{margin-left:auto;flex:0 0 auto}
.nav-channels-bar{border-top:1px solid var(--line);background:#fff}
.nav-channels-inner{display:flex;align-items:center;gap:16px;height:48px}
.nav-channels{display:flex;align-items:center;gap:26px;min-width:0;overflow-x:auto;scrollbar-width:none}
.nav-channels::-webkit-scrollbar{display:none}
.nav-channels a{position:relative;font-size:14px;color:var(--muted);padding:14px 0;white-space:nowrap}
.nav-channels a:hover{color:var(--brand)}
.nav-channels a.is-active{color:var(--brand);font-weight:600}
.nav-channels a.is-active::after{content:"";position:absolute;left:0;right:0;bottom:6px;height:2px;border-radius:2px;background:var(--brand)}
.nav-trends{margin-left:auto;display:flex;align-items:center;gap:8px;padding-left:8px;overflow-x:auto;scrollbar-width:none}
.nav-trends::-webkit-scrollbar{display:none}
.chip{display:inline-flex;align-items:center;height:24px;padding:0 10px;border:1px solid var(--line);border-radius:999px;background:#fff;font-size:12px;color:var(--muted);white-space:nowrap;transition:border-color .2s ease,color .2s ease,background-color .2s ease}
.chip:hover{border-color:var(--brand);color:var(--brand);background:rgba(31,61,51,.05)}

/* ---------- 文章主体 ---------- */
.article-main{padding:32px 0 72px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:22px;font-size:14px;color:var(--muted)}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px}
.breadcrumb .sep{color:#BDB5A7}
.crumb-cur{max-width:22em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text)}
.article-head{max-width:820px}
.article-head h1{font-family:var(--font-serif);font-size:34px;line-height:1.35;letter-spacing:-.5px;margin-bottom:16px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:12px;letter-spacing:.5px;color:var(--muted)}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:#BDB5A7}
.badge{display:inline-flex;align-items:center;height:22px;padding:0 9px;border-radius:var(--radius-badge);background:rgba(31,61,51,.08);color:var(--brand);font-size:12px;font-weight:600;letter-spacing:.2px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;align-items:start;margin-top:30px}
.article-body{max-width:720px;font-size:16px;line-height:1.9;color:#2E2B26}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 20px}
.article-body h2{font-size:22px;line-height:1.5;margin:40px 0 16px;padding-left:12px;border-left:3px solid var(--brand);color:var(--text);scroll-margin-top:120px}
.article-body h3{font-size:18px;line-height:1.5;margin:28px 0 12px;color:var(--text)}
.article-body h4{font-size:16px;margin:22px 0 10px}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px}
.article-body a:hover{color:var(--accent)}
.article-body strong{color:var(--text);font-weight:700}
.article-body ul,.article-body ol{padding-left:1.4em;margin:0 0 20px;line-height:1.9}
.article-body li{margin-bottom:8px}
.article-body blockquote{margin:24px 0;padding:20px 22px;background:var(--bg-soft);border-left:3px solid var(--brand);border-radius:0 10px 10px 0;color:var(--muted)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:10px;margin:24px 0}
.article-body figure{margin:24px 0}
.article-body figcaption{margin-top:12px;font-size:13px;color:var(--muted);text-align:center}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;border:1px solid var(--line)}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
.article-body th{background:var(--bg-alt);font-weight:600}
.article-body pre{margin:24px 0;padding:16px;background:var(--bg-alt);border-radius:10px;overflow-x:auto;font-size:14px;line-height:1.7}
.article-body code{background:var(--bg-alt);padding:2px 6px;border-radius:4px;font-size:.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.article-body pre code{background:none;padding:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}
.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;min-height:200px;padding:32px 24px;border:1px dashed var(--line);border-radius:var(--radius-card);background:var(--bg-soft);text-align:center;color:var(--muted)}
.empty-state .empty-title{font-size:16px;font-weight:600;color:var(--text)}
.empty-state p{margin:0;font-size:14px}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:120px;display:flex;flex-direction:column;gap:20px}
.side-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:20px}
.side-card h3{display:flex;align-items:center;gap:8px;margin-bottom:14px;font-size:13px;letter-spacing:1px;color:var(--brand)}
.side-card h3::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--accent)}
.toc{display:flex;flex-direction:column;gap:2px;font-size:14px;max-height:52vh;overflow:auto}
.toc a{display:block;padding:6px 8px;border-left:2px solid transparent;border-radius:6px;color:var(--muted);line-height:1.5}
.toc a:hover{color:var(--brand);background:var(--bg-soft);border-left-color:var(--accent)}
.side-links{display:flex;flex-direction:column;gap:2px}
.side-links a{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:9px 8px;border-radius:6px;font-size:14px;color:var(--text)}
.side-links a:hover{background:var(--bg-soft);color:var(--brand)}
.side-links .arrow{color:var(--muted);transition:transform .2s ease,color .2s ease}
.side-links a:hover .arrow{transform:translateX(4px);color:var(--accent)}
.side-note{font-size:13px;line-height:1.8;color:var(--muted);margin:0}

/* ---------- 文末 ---------- */
.article-foot{max-width:720px;margin-top:40px;padding-top:24px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;align-items:center;gap:12px}
.article-foot .foot-label{font-size:12px;letter-spacing:1px;color:var(--muted)}
.tag{display:inline-flex;align-items:center;height:26px;padding:0 10px;border:1px solid var(--line);border-radius:var(--radius-badge);background:#fff;font-size:12px;color:var(--muted)}
.tag:hover{border-color:var(--brand);color:var(--brand)}

/* ---------- CTA 条 ---------- */
.cta-band{position:relative;overflow:hidden;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;margin-top:56px;padding:40px 44px;border-radius:14px;background:var(--brand);color:var(--inverse)}
.cta-band h2{font-size:24px;color:var(--inverse);margin-bottom:10px}
.cta-band p{margin:0;font-size:15px;color:rgba(251,248,242,.82);max-width:520px}
.cta-band::after{content:"";position:absolute;right:-70px;bottom:-110px;width:280px;height:280px;border:1px solid rgba(251,248,242,.16);border-radius:50%;pointer-events:none}
.cta-band > *{position:relative;z-index:1}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-alt);border-top:1px solid var(--line);margin-top:72px;padding-top:56px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:40px}
.footer-brand p{margin:14px 0 0;max-width:280px;font-size:14px;line-height:1.8;color:var(--muted)}
.footer-col h4{margin-bottom:14px;font-size:14px;letter-spacing:.5px;color:var(--brand)}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-col li a,.footer-col li span{font-size:14px;color:var(--muted);line-height:1.7}
.footer-col li a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;padding:18px 0;border-top:1px solid var(--line);font-size:13px;color:#7C7568}
.footer-bottom .compliance{color:#7C7568}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .article-side{display:none}
  .article-head h1{font-size:30px}
}
@media (max-width:1023px){
  .nav-hotwords{display:none}
  .nav-search{max-width:260px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .nav-top-inner{height:auto;flex-wrap:wrap;row-gap:10px;padding:10px 0;gap:12px}
  .site-nav.is-stuck .nav-top-inner{height:auto}
  .brand-mark{width:30px;height:30px;font-size:16px;border-radius:8px}
  .brand-name{font-size:17px}
  .nav-search{order:3;flex:1 1 100%;max-width:none}
  .nav-cta{height:32px;padding:0 12px;font-size:13px}
  .nav-channels-inner{height:44px;gap:10px}
  .nav-channels{gap:18px}
  .nav-channels a{font-size:13px;padding:12px 0}
  .nav-channels a.is-active::after{bottom:4px}
  .nav-trends{display:none}
  .article-main{padding:20px 0 56px}
  .article-head h1{font-size:26px}
  .article-body{font-size:16px;line-height:1.9}
  .article-body h2{font-size:20px;margin-top:32px}
  .article-body h3{font-size:17px}
  .cta-band{padding:28px 24px;border-radius:12px;flex-direction:column;align-items:flex-start}
  .cta-band h2{font-size:20px}
  .site-footer{margin-top:56px;padding-top:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-brand{grid-column:1 / -1}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media (max-width:479px){
  .article-meta{font-size:11px}
  .footer-grid{grid-template-columns:1fr}
  .tag{height:24px;font-size:11px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --primary:#1F3D33;
  --primary-dark:#162C25;
  --accent:#C4552F;
  --bg:#F7F3EC;
  --bg-alt:#EFE9DF;
  --card:#FFFFFF;
  --line:#E2DACB;
  --ink:#22201D;
  --muted:#6B655C;
  --white:#FBF8F2;
  --success:#3E7A5A;
  --warn:#B4881F;
  --radius-card:10px;
  --radius-btn:6px;
  --radius-badge:4px;
  --shadow-hover:0 8px 24px rgba(31,61,51,.10);
  --shadow-nav:0 4px 16px rgba(31,61,51,.08);
  --container:1200px;
  --space-section:96px;
}
*,
*::before,
*::after{box-sizing:border-box;}
html{
  scroll-behavior:smooth;
  scroll-padding-top:120px;
}
body{
  margin:0;
  color:var(--ink);
  background:var(--bg);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--primary-dark);}
button,input{font:inherit;}
button{cursor:pointer;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
[hidden]{display:none!important;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.visually-hidden{
  position:absolute!important;
  width:1px;height:1px;
  padding:0;margin:-1px;
  overflow:hidden;clip:rect(0,0,0,0);
  white-space:nowrap;border:0;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:40px;
  padding:0 18px;
  border:1px solid transparent;
  border-radius:var(--radius-btn);
  font-size:14px;
  font-weight:600;
  line-height:1;
  white-space:nowrap;
  transition:transform .2s ease,background-color .2s ease,border-color .2s ease,color .2s ease,box-shadow .2s ease;
}
.btn:hover{transform:translateY(-1px);}
.btn--primary{
  color:var(--white);
  background:var(--primary);
  border-color:var(--primary);
}
.btn--primary:hover{
  color:#fff;
  background:var(--primary-dark);
  border-color:var(--primary-dark);
}
.btn--ghost{
  color:var(--primary);
  background:transparent;
  border-color:var(--primary);
}
.btn--ghost:hover{
  color:var(--primary-dark);
  background:rgba(31,61,51,.08);
}
.btn--light{
  color:var(--primary);
  background:var(--white);
  border-color:var(--white);
}
.btn--light:hover{
  color:var(--primary-dark);
  background:#fff;
  border-color:#fff;
}
.btn--outline-light{
  color:var(--white);
  background:transparent;
  border-color:rgba(251,248,242,.65);
}
.btn--outline-light:hover{
  color:var(--primary-dark);
  background:var(--white);
  border-color:var(--white);
}
.badge{
  display:inline-flex;
  align-items:center;
  min-height:24px;
  padding:2px 8px;
  color:var(--primary);
  background:rgba(31,61,51,.08);
  border-radius:var(--radius-badge);
  font-size:12px;
  font-weight:600;
  line-height:1.4;
}
.section-label{
  margin-bottom:10px;
  color:var(--primary);
  font-size:12px;
  font-weight:700;
  letter-spacing:1px;
  text-transform:uppercase;
}

/* 导航 */
.site-nav{
  position:sticky;
  top:0;
  z-index:100;
  background:var(--white);
  border-bottom:1px solid transparent;
  transition:box-shadow .2s ease,border-color .2s ease,background-color .2s ease;
}
.site-nav.is-stuck{
  box-shadow:var(--shadow-nav);
  border-bottom-color:var(--line);
}
.nav-top{background:var(--white);border-bottom:1px solid var(--line);transition:background-color .2s ease;}
.nav-top-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:64px;
  transition:height .2s ease;
}
.site-nav.is-stuck .nav-top-inner{height:56px;}
.nav-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--primary);
}
.nav-brand:hover{color:var(--primary-dark);}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:32px;
  height:32px;
  color:var(--white);
  background:var(--primary);
  border-radius:6px;
  font-family:"Noto Serif SC",serif;
  font-size:18px;
  font-weight:700;
  line-height:1;
}
.brand-name{
  font-size:18px;
  font-weight:800;
  letter-spacing:.4px;
  white-space:nowrap;
}
.nav-search{
  display:flex;
  align-items:center;
  flex:1 1 280px;
  max-width:340px;
  height:36px;
  margin-left:8px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:6px;
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search:focus-within{
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(31,61,51,.08);
}
.nav-search input{
  width:100%;
  height:100%;
  padding:0 12px;
  color:var(--ink);
  background:transparent;
  border:0;
  outline:none;
  font-size:13px;
}
.nav-search input::placeholder{color:#9A9388;}
.nav-search button{
  display:flex;
  align-items:center;
  justify-content:center;
  width:38px;
  height:100%;
  color:var(--muted);
  background:transparent;
  border:0;
  border-left:1px solid var(--line);
  transition:color .2s ease,background-color .2s ease;
}
.nav-search button:hover{color:var(--primary);background:var(--bg);}
.nav-hotwords{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 1 auto;
  color:var(--muted);
  font-size:12px;
  white-space:nowrap;
}
.nav-hotwords span{color:#918A7F;}
.nav-hotwords a{color:var(--muted);}
.nav-hotwords a:hover{color:var(--primary);}
.nav-cta{margin-left:auto;height:36px;min-height:36px;padding:0 16px;}
.site-nav.is-stuck .nav-hotwords{display:none;}
.nav-channels-bar{
  background:#fff;
  border-bottom:1px solid var(--line);
}
.nav-channels-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:48px;
}
.nav-channels{
  display:flex;
  align-items:center;
  gap:26px;
  height:100%;
  overflow-x:auto;
  scrollbar-width:none;
}
.nav-channels::-webkit-scrollbar{display:none;}
.nav-channels a{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:100%;
  color:var(--muted);
  font-size:14px;
  font-weight:500;
  white-space:nowrap;
}
.nav-channels a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:2px;
  background:transparent;
  transition:background-color .2s ease;
}
.nav-channels a:hover{color:var(--primary);}
.nav-channels a.is-active{color:var(--primary);font-weight:700;}
.nav-channels a.is-active::after{background:var(--primary);}
.nav-trends{
  display:flex;
  align-items:center;
  gap:8px;
  flex:0 1 auto;
  overflow-x:auto;
  scrollbar-width:none;
}
.nav-trends::-webkit-scrollbar{display:none;}
.chip{
  display:inline-flex;
  align-items:center;
  min-height:26px;
  padding:2px 10px;
  color:var(--muted);
  background:var(--bg);
  border:1px solid transparent;
  border-radius:999px;
  font-size:12px;
  line-height:1.5;
  white-space:nowrap;
}
.chip:hover{
  color:var(--primary);
  border-color:var(--line);
  background:#fff;
}

/* 首屏 */
.page-hero{
  position:relative;
  overflow:hidden;
  color:var(--white);
  background-color:var(--primary);
  background-image:linear-gradient(100deg,rgba(22,44,37,.97) 0%,rgba(31,61,51,.90) 46%,rgba(31,61,51,.58) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-140px;
  bottom:-220px;
  width:520px;
  height:520px;
  border:1px solid rgba(251,248,242,.14);
  border-radius:50%;
  pointer-events:none;
}
.hero-grid{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:minmax(0,1.2fr) minmax(280px,.8fr);
  gap:56px;
  align-items:center;
  padding:52px 0 68px;
}
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  padding:22px 0 0;
  color:rgba(251,248,242,.68);
  font-size:13px;
}
.breadcrumb a{color:rgba(251,248,242,.82);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb span[aria-current="page"]{color:rgba(251,248,242,.68);}
.eyebrow{
  margin-bottom:14px;
  color:#D9CDBD;
  font-size:12px;
  font-weight:700;
  letter-spacing:1.4px;
}
.page-hero h1{
  max-width:760px;
  margin-bottom:16px;
  font-family:"Noto Serif SC",serif;
  font-size:46px;
  font-weight:700;
  line-height:1.22;
  letter-spacing:-.5px;
}
.hero-lead{
  margin-bottom:10px;
  color:#fff;
  font-size:20px;
  font-weight:600;
  line-height:1.6;
}
.hero-copy{
  max-width:620px;
  color:rgba(251,248,242,.78);
  font-size:15px;
  line-height:1.85;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:26px;
}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:30px;
  margin-top:34px;
  padding-top:24px;
  border-top:1px solid rgba(251,248,242,.18);
}
.hero-stat strong{
  display:block;
  color:#fff;
  font-size:28px;
  font-weight:800;
  line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.hero-stat span{
  display:block;
  margin-top:4px;
  color:rgba(251,248,242,.62);
  font-size:12px;
  letter-spacing:.5px;
}
.hero-panel{
  padding:24px;
  color:var(--ink);
  background:rgba(251,248,242,.96);
  border:1px solid rgba(251,248,242,.78);
  border-radius:12px;
  box-shadow:0 16px 40px rgba(0,0,0,.12);
}
.hero-panel h2{
  margin:4px 0 8px;
  color:var(--primary);
  font-size:22px;
  line-height:1.4;
}
.hero-panel p{
  color:var(--muted);
  font-size:13px;
  line-height:1.75;
}
.panel-links{
  display:grid;
  gap:8px;
  margin-top:18px;
}
.panel-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:44px;
  padding:8px 12px;
  color:var(--ink);
  background:#fff;
  border:1px solid var(--line);
  border-radius:6px;
  font-size:14px;
  font-weight:600;
  transition:border-color .2s ease,color .2s ease,background-color .2s ease,transform .2s ease;
}
.panel-link span{
  color:var(--muted);
  font-size:12px;
  font-weight:400;
  font-variant-numeric:tabular-nums;
}
.panel-link:hover{
  color:var(--primary);
  background:var(--bg);
  border-color:rgba(31,61,51,.4);
  transform:translateX(2px);
}
.panel-note{
  margin-top:14px;
  padding-top:12px;
  border-top:1px solid var(--line);
  color:var(--muted);
  font-size:12px;
  line-height:1.7;
}

/* 主体 */
.section{
  padding:var(--space-section) 0;
}
.section--alt{
  background:var(--bg-alt);
}
.directory-section{
  padding:72px 0 88px;
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:32px;
  margin-bottom:34px;
}
.section-head h2{
  color:var(--ink);
  font-size:30px;
  line-height:1.35;
  letter-spacing:-.3px;
}
.section-head > div > p:not(.section-label){
  max-width:660px;
  margin-top:8px;
  color:var(--muted);
  font-size:14px;
}
.section-meta{
  display:flex;
  flex-direction:column;
  align-items:flex-end;
  gap:4px;
  color:var(--muted);
  font-size:12px;
  white-space:nowrap;
}
.section-meta strong{color:var(--accent);font-size:14px;font-variant-numeric:tabular-nums;}
.directory-layout{
  display:grid;
  grid-template-columns:260px minmax(0,1fr);
  gap:40px;
  align-items:start;
}
.filter-panel{
  position:sticky;
  top:120px;
  padding:20px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
}
.filter-panel h3{
  margin-bottom:14px;
  color:var(--ink);
  font-size:16px;
  line-height:1.4;
}
.filter-list{
  display:grid;
  gap:8px;
}
.filter-chip{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  width:100%;
  min-height:42px;
  padding:8px 12px;
  color:var(--muted);
  background:transparent;
  border:1px solid var(--line);
  border-radius:6px;
  font-size:14px;
  text-align:left;
  transition:color .2s ease,background-color .2s ease,border-color .2s ease;
}
.filter-chip span{
  color:var(--muted);
  font-size:12px;
  font-variant-numeric:tabular-nums;
}
.filter-chip:hover{
  color:var(--primary);
  background:var(--bg);
  border-color:rgba(31,61,51,.35);
}
.filter-chip.is-active{
  color:#fff;
  background:var(--primary);
  border-color:var(--primary);
  font-weight:600;
}
.filter-chip.is-active span{color:rgba(251,248,242,.72);}
.filter-note{
  margin-top:16px;
  padding-top:14px;
  color:var(--muted);
  border-top:1px solid var(--line);
  font-size:12px;
  line-height:1.75;
}
.list-panel{min-width:0;}
.entry-group + .entry-group{margin-top:38px;}
.group-head{
  display:flex;
  align-items:center;
  gap:14px;
  margin-bottom:8px;
  padding-bottom:10px;
  border-bottom:1px solid var(--line);
}
.group-head h3{
  color:var(--ink);
  font-size:20px;
  line-height:1.4;
}
.group-head span{
  color:var(--muted);
  font-size:12px;
  font-variant-numeric:tabular-nums;
}
.group-head::after{
  content:"";
  flex:1;
  height:1px;
  background:var(--line);
}
.list-row{
  display:grid;
  grid-template-columns:44px 64px minmax(0,1fr) 24px;
  gap:16px;
  align-items:center;
  min-height:76px;
  padding:12px 14px;
  color:var(--ink);
  border:1px solid transparent;
  border-bottom-color:var(--line);
  border-radius:8px;
  transition:background-color .2s ease,border-color .2s ease, transform .2s ease;
}
.list-row:hover{
  color:var(--ink);
  background:var(--bg);
  border-color:rgba(31,61,51,.16);
}
.row-index{
  color:var(--accent);
  font-size:12px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  letter-spacing:.5px;
}
.row-thumb{
  width:64px;
  height:64px;
  overflow:hidden;
  background:var(--bg-alt);
  border:1px solid var(--line);
  border-radius:8px;
}
.row-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .25s ease;
}
.list-row:hover .row-thumb img{transform:scale(1.04);}
.row-body{
  display:flex;
  flex-direction:column;
  min-width:0;
  gap:2px;
}
.row-name{
  overflow:hidden;
  color:var(--ink);
  font-size:16px;
  font-weight:700;
  line-height:1.5;
  text-overflow:ellipsis;
  white-space:nowrap;
  transition:color .2s ease;
}
.list-row:hover .row-name{color:var(--primary);}
.row-desc{
  overflow:hidden;
  color:var(--muted);
  font-size:14px;
  line-height:1.65;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.row-arrow{
  color:var(--muted);
  font-size:20px;
  line-height:1;
  transition:color .2s ease,transform .2s ease;
}
.list-row:hover .row-arrow{
  color:var(--primary);
  transform:translateX(4px);
}

/* 使用方式 */
.method-section{
  background:var(--bg-alt);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.method-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
  margin-top:30px;
}
.method-item{
  padding:24px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.method-item:hover{
  border-color:rgba(31,61,51,.3);
  box-shadow:var(--shadow-hover);
  transform:translateY(-2px);
}
.method-num{
  display:block;
  margin-bottom:14px;
  color:var(--accent);
  font-size:13px;
  font-weight:800;
  letter-spacing:1px;
  font-variant-numeric:tabular-nums;
}
.method-item h3{
  margin-bottom:8px;
  color:var(--ink);
  font-size:18px;
  line-height:1.45;
}
.method-item p{
  color:var(--muted);
  font-size:14px;
  line-height:1.8;
}

/* FAQ */
.faq-section{padding:88px 0;}
.faq-wrap{
  max-width:800px;
  margin:30px auto 0;
  border-top:1px solid var(--line);
}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  min-height:58px;
  padding:14px 0;
  color:var(--ink);
  font-size:16px;
  font-weight:700;
  line-height:1.6;
  list-style:none;
  cursor:pointer;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  display:inline-flex;
  align-items:center;
  justify-content:center;
  flex:0 0 26px;
  width:26px;
  height:26px;
  color:var(--primary);
  background:rgba(31,61,51,.06);
  border-radius:50%;
  font-size:18px;
  font-weight:500;
  line-height:1;
  transition:transform .2s ease,background-color .2s ease;
}
.faq-item[open] summary::after{
  content:"−";
  background:rgba(31,61,51,.12);
  transform:rotate(180deg);
}
.faq-answer{
  padding:0 0 20px;
  color:var(--muted);
  font-size:15px;
  line-height:1.85;
  animation:fadeIn .2s ease;
}
@keyframes fadeIn{
  from{opacity:0;transform:translateY(-2px);}
  to{opacity:1;transform:translateY(0);}
}

/* CTA */
.cta-band{
  position:relative;
  overflow:hidden;
  padding:68px 0;
  color:var(--white);
  background:var(--primary);
}
.cta-band::before,
.cta-band::after{
  content:"";
  position:absolute;
  border:1px solid rgba(251,248,242,.12);
  border-radius:50%;
  pointer-events:none;
}
.cta-band::before{
  width:420px;height:420px;
  left:-160px;bottom:-280px;
}
.cta-band::after{
  width:300px;height:300px;
  right:-110px;top:-190px;
}
.cta-inner{
  position:relative;
  z-index:1;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
}
.cta-copy h2{
  margin-bottom:8px;
  color:#fff;
  font-size:30px;
  line-height:1.4;
  letter-spacing:-.3px;
}
.cta-copy p{
  color:rgba(251,248,242,.76);
  font-size:15px;
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  flex:0 0 auto;
}

/* 页脚 */
.site-footer{
  padding:64px 0 28px;
  color:var(--muted);
  background:var(--bg-alt);
  border-top:1px solid var(--line);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-brand .nav-brand{margin-bottom:14px;}
.footer-brand p{
  max-width:280px;
  color:var(--muted);
  font-size:14px;
  line-height:1.8;
}
.footer-col h4{
  margin-bottom:14px;
  color:var(--ink);
  font-size:14px;
  line-height:1.5;
}
.footer-col ul{
  display:grid;
  gap:8px;
}
.footer-col a,
.footer-col span{
  color:var(--muted);
  font-size:14px;
  line-height:1.7;
}
.footer-col a:hover{
  color:var(--primary);
  text-decoration:underline;
  text-underline-offset:4px;
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  margin-top:42px;
  padding-top:20px;
  color:#8A8378;
  border-top:1px solid var(--line);
  font-size:12px;
}
.compliance{text-align:right;}

@media (max-width:1199px){
  :root{--space-section:78px;}
  .nav-hotwords{display:none;}
  .hero-grid{gap:36px;grid-template-columns:minmax(0,1.1fr) minmax(260px,.9fr);}
  .page-hero h1{font-size:40px;}
  .directory-layout{grid-template-columns:230px minmax(0,1fr);gap:28px;}
}
@media (max-width:991px){
  :root{--space-section:72px;}
  .hero-grid{grid-template-columns:1fr;gap:30px;padding:38px 0 52px;}
  .page-hero h1{font-size:38px;}
  .hero-panel{max-width:620px;}
  .directory-layout{grid-template-columns:1fr;gap:24px;}
  .filter-panel{
    position:static;
    padding:16px;
  }
  .filter-list{
    display:flex;
    flex-wrap:nowrap;
    gap:8px;
    overflow-x:auto;
    padding-bottom:4px;
    scrollbar-width:none;
  }
  .filter-list::-webkit-scrollbar{display:none;}
  .filter-chip{width:auto;flex:0 0 auto;min-height:38px;padding:7px 12px;}
  .filter-note{display:none;}
  .method-grid{grid-template-columns:1fr 1fr;}
  .method-item:last-child{grid-column:1 / -1;}
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr;gap:30px;}
  .footer-col:last-child{grid-column:1 / -1;}
}
@media (max-width:767px){
  :root{--space-section:58px;}
  .container{padding:0 16px;}
  .nav-top-inner{
    flex-wrap:wrap;
    height:auto;
    min-height:56px;
    gap:10px;
    padding:10px 0;
  }
  .site-nav.is-stuck .nav-top-inner{height:auto;}
  .nav-brand{order:1;}
  .brand-mark{width:30px;height:30px;font-size:17px;}
  .brand-name{font-size:17px;}
  .nav-search{
    order:3;
    flex:1 0 100%;
    max-width:none;
    margin-left:0;
    height:38px;
  }
  .nav-cta{order:2;margin-left:auto;height:34px;min-height:34px;padding:0 13px;font-size:13px;}
  .nav-channels-inner{height:44px;gap:12px;}
  .nav-channels{gap:22px;}
  .nav-channels a{font-size:13px;}
  .nav-trends{display:none;}
  .breadcrumb{padding-top:16px;font-size:12px;}
  .page-hero h1{font-size:31px;line-height:1.28;}
  .hero-lead{font-size:18px;}
  .hero-copy{font-size:14px;}
  .hero-actions{margin-top:22px;}
  .hero-actions .btn{flex:1 1 auto;min-width:130px;}
  .hero-stats{gap:20px;}
  .hero-stat strong{font-size:24px;}
  .hero-panel{padding:20px;}
  .section-head{
    align-items:flex-start;
    flex-direction:column;
    gap:12px;
    margin-bottom:26px;
  }
  .section-head h2{font-size:26px;}
  .section-meta{align-items:flex-start;flex-direction:row;gap:16px;}
  .directory-section{padding:52px 0 64px;}
  .group-head h3{font-size:18px;}
  .list-row{
    grid-template-columns:34px 56px minmax(0,1fr) 18px;
    gap:10px;
    padding:10px 8px;
    min-height:70px;
  }
  .row-thumb{width:56px;height:56px;}
  .row-name{font-size:15px;}
  .row-desc{font-size:13px;}
  .row-arrow{font-size:18px;}
  .method-grid{grid-template-columns:1fr;gap:14px;}
  .method-item:last-child{grid-column:auto;}
  .faq-section{padding:60px 0;}
  .faq-item summary{font-size:15px;min-height:54px;}
  .faq-answer{font-size:14px;}
  .cta-band{padding:52px 0;}
  .cta-inner{align-items:flex-start;flex-direction:column;gap:24px;}
  .cta-copy h2{font-size:25px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .site-footer{padding-top:48px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-brand{grid-column:1 / -1;}
  .footer-brand p{max-width:none;}
  .footer-col:last-child{grid-column:auto;}
  .footer-bottom{
    align-items:flex-start;
    flex-direction:column;
    gap:6px;
    margin-top:32px;
  }
  .compliance{text-align:left;}
}
@media (max-width:519px){
  .nav-hotwords{display:none;}
  .page-hero h1{font-size:28px;}
  .hero-stats{border-top-color:rgba(251,248,242,.14);}
  .hero-stat{flex:1 1 40%;}
  .hero-stat strong{font-size:22px;}
  .hero-panel h2{font-size:20px;}
  .filter-chip{font-size:13px;}
  .list-row{grid-template-columns:30px minmax(0,1fr) 16px;}
  .row-thumb{display:none;}
  .row-desc{
    display:-webkit-box;
    overflow:hidden;
    white-space:normal;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
  }
  .section-meta{flex-wrap:wrap;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-col:last-child{grid-column:auto;}
}
@media (prefers-reduced-motion:reduce){
  *,
  *::before,
  *::after{
    scroll-behavior:auto!important;
    animation-duration:.01ms!important;
    animation-iteration-count:1!important;
    transition-duration:.01ms!important;
  }
}

/* roulang page: category2 */
:root{
  --brand:#1F3D33;
  --brand-dark:#162C25;
  --brand-soft:rgba(31,61,51,.08);
  --accent:#C4552F;
  --bg:#F7F3EC;
  --bg-2:#EFE9DF;
  --card:#FFFFFF;
  --line:#E2DACB;
  --text:#22201D;
  --muted:#6B655C;
  --inv:#FBF8F2;
  --ok:#3E7A5A;
  --warn:#B4881F;
  --r-card:10px;
  --r-btn:6px;
  --r-img:10px;
  --r-badge:4px;
  --shadow-nav:0 4px 16px rgba(31,61,51,.08);
  --shadow-card:0 8px 24px rgba(31,61,51,.10);
  --container:1200px;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --serif:"Noto Serif SC","Songti SC",Georgia,serif;
  --dur:.2s;
}

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

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}

body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;letter-spacing:-.2px;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{display:block;max-width:100%;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color var(--dur) ease;}
a:hover{color:var(--accent);}
button{font-family:inherit;font-size:inherit;color:inherit;}
input{font-family:inherit;}
table{border-collapse:collapse;}

:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

/* ============ 导航 ============ */
.site-nav{
  position:sticky;
  top:0;
  z-index:80;
  background:var(--bg);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--dur) ease;
}
.site-nav.is-condensed{box-shadow:var(--shadow-nav);}

.nav-top{height:64px;display:flex;align-items:center;transition:height var(--dur) ease;}
.site-nav.is-condensed .nav-top{height:56px;}

.nav-top-inner{display:flex;align-items:center;gap:18px;height:100%;}

.nav-brand{display:inline-flex;align-items:center;gap:10px;flex:none;}
.brand-mark{
  width:32px;height:32px;flex:none;
  display:grid;place-items:center;
  border-radius:8px;
  background:var(--brand);
  color:var(--inv);
  font-family:var(--serif);
  font-size:17px;
  font-weight:700;
  line-height:1;
}
.brand-name{
  font-family:var(--serif);
  font-size:20px;
  font-weight:700;
  color:var(--brand);
  letter-spacing:.5px;
  white-space:nowrap;
}
.nav-brand:hover .brand-name{color:var(--brand-dark);}

.nav-search{
  display:flex;align-items:center;
  height:36px;
  flex:1 1 auto;
  max-width:300px;
  min-width:150px;
  padding:0 5px 0 12px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  transition:border-color var(--dur) ease,box-shadow var(--dur) ease;
}
.nav-search:focus-within{
  border-color:var(--brand);
  box-shadow:0 0 0 2px rgba(31,61,51,.12);
}
.nav-search input{
  flex:1 1 auto;
  min-width:0;
  height:100%;
  border:0;
  outline:0;
  background:transparent;
  font-size:13.5px;
  color:var(--text);
}
.nav-search input::placeholder{color:#9C9489;}
.nav-search button{
  flex:none;
  width:28px;height:28px;
  display:grid;place-items:center;
  border:0;
  border-radius:var(--r-btn);
  background:transparent;
  color:var(--muted);
  cursor:pointer;
  transition:background var(--dur) ease,color var(--dur) ease;
}
.nav-search button:hover{background:var(--brand-soft);color:var(--brand);}

.nav-hotwords{
  display:flex;align-items:center;gap:12px;
  font-size:12px;
  color:var(--muted);
  white-space:nowrap;
  flex:none;
}
.nav-hotwords span{letter-spacing:.5px;color:#9C9489;}
.nav-hotwords a{color:var(--muted);}
.nav-hotwords a:hover{color:var(--brand);}

.nav-cta{flex:none;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;
  padding:0 18px;
  border:1px solid transparent;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  letter-spacing:.2px;
  white-space:nowrap;
  cursor:pointer;
  transition:background var(--dur) ease,color var(--dur) ease,border-color var(--dur) ease,transform var(--dur) ease,box-shadow var(--dur) ease;
}
.btn--primary{background:var(--brand);color:var(--inv);}
.btn--primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);}
.btn--primary:active{transform:translateY(0);}
.btn--ghost{background:transparent;border-color:var(--brand);color:var(--brand);}
.btn--ghost:hover{background:var(--brand-soft);color:var(--brand-dark);}
.btn--light{background:var(--inv);color:var(--brand);}
.btn--light:hover{background:#fff;color:var(--brand-dark);transform:translateY(-1px);}
.btn--outline-light{background:transparent;border-color:rgba(251,248,242,.6);color:var(--inv);}
.btn--outline-light:hover{background:rgba(251,248,242,.14);color:#fff;border-color:var(--inv);}
.btn--sm{height:36px;padding:0 14px;font-size:14px;}

.nav-channels-bar{border-top:1px solid var(--line);}
.nav-channels-inner{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  height:48px;
}
.nav-channels{
  display:flex;align-items:center;gap:26px;
  height:100%;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
  flex:1 1 auto;
}
.nav-channels::-webkit-scrollbar{display:none;}
.nav-channels a{
  position:relative;
  display:inline-flex;align-items:center;
  height:100%;
  font-size:14px;
  color:var(--muted);
  white-space:nowrap;
}
.nav-channels a:hover{color:var(--brand);}
.nav-channels a.is-active{color:var(--brand);font-weight:700;}
.nav-channels a.is-active::after{
  content:"";
  position:absolute;left:0;right:0;bottom:0;
  height:2px;background:var(--brand);
}

.nav-trends{
  display:flex;align-items:center;gap:8px;
  flex:none;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
  max-width:42%;
}
.nav-trends::-webkit-scrollbar{display:none;}
.chip{
  display:inline-flex;align-items:center;
  height:24px;padding:0 10px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--muted);
  font-size:12px;
  white-space:nowrap;
  transition:all var(--dur) ease;
}
.chip:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);}

/* ============ 面包屑 ============ */
.crumbs{background:var(--bg);border-bottom:1px solid var(--line);}
.crumbs .container{
  display:flex;align-items:center;gap:8px;
  height:44px;
  font-size:13px;
  color:var(--muted);
  overflow:hidden;
  white-space:nowrap;
}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--brand);}
.crumbs span{color:#B3AA9D;}
.crumbs em{font-style:normal;color:var(--text);font-weight:600;overflow:hidden;text-overflow:ellipsis;}

/* ============ 横幅 ============ */
.banner{
  position:relative;
  min-height:320px;
  display:flex;
  align-items:center;
  overflow:hidden;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  background-color:var(--brand-dark);
  color:var(--inv);
  scroll-margin-top:120px;
}
.banner::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(22,44,37,.88) 0%,rgba(22,44,37,.66) 52%,rgba(22,44,37,.34) 100%);
}
.banner::after{
  content:"";
  position:absolute;
  right:-60px;bottom:-120px;
  width:340px;height:340px;
  border:1px solid rgba(251,248,242,.14);
  border-radius:50%;
  pointer-events:none;
}
.banner-inner{position:relative;z-index:1;padding:68px 0;}
.banner-badge{
  display:inline-flex;align-items:center;gap:8px;
  height:26px;padding:0 12px;
  border-radius:var(--r-badge);
  background:rgba(251,248,242,.12);
  border:1px solid rgba(251,248,242,.28);
  color:var(--inv);
  font-size:12px;
  letter-spacing:1px;
}
.banner h1{
  font-family:var(--serif);
  font-size:42px;
  line-height:1.24;
  letter-spacing:-.5px;
  margin:16px 0 14px;
  max-width:760px;
}
.banner-sub{
  font-size:16px;
  line-height:1.75;
  color:rgba(251,248,242,.86);
  max-width:600px;
}
.banner-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}

/* ============ 通用板块 ============ */
.section{padding:88px 0;scroll-margin-top:120px;}
.section--alt{background:var(--bg-2);}
.section--tight{padding:64px 0;}

.section-label{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;
  font-weight:700;
  letter-spacing:1px;
  color:var(--brand);
  text-transform:uppercase;
}
.section-label .num{color:var(--accent);font-variant-numeric:tabular-nums;}
.section-label::after{
  content:"";
  width:36px;height:1px;
  background:var(--line);
}

.section-head{max-width:740px;margin-bottom:38px;}
.section-head h2{font-size:28px;margin:12px 0 12px;}
.section-head p{color:var(--muted);font-size:15px;line-height:1.85;}

/* ============ 速览 ============ */
.overview{display:grid;grid-template-columns:1.15fr 1fr;gap:56px;align-items:start;}
.overview-copy p{color:var(--muted);font-size:15px;line-height:1.95;}
.overview-copy p + p{margin-top:14px;}
.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px 24px;}
.stat{border-top:2px solid var(--brand);padding-top:14px;}
.stat b{
  display:block;
  font-family:var(--serif);
  font-size:30px;
  line-height:1.2;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
}
.stat span{font-size:13px;color:var(--muted);}

/* ============ 专区网格 ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.topic-card{
  display:flex;flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:transform var(--dur) ease,box-shadow var(--dur) ease,border-color var(--dur) ease;
}
.topic-card:hover{
  border-color:rgba(31,61,51,.3);
  box-shadow:var(--shadow-card);
  transform:translateY(-3px);
}
.topic-media{aspect-ratio:16/10;overflow:hidden;background:var(--bg-2);}
.topic-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.topic-card:hover .topic-media img{transform:scale(1.03);}
.topic-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:9px;}
.topic-body h3{font-size:19px;}
.topic-body p{font-size:14px;line-height:1.75;color:var(--muted);}
.topic-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:14px;
  border-top:1px solid var(--line);
  font-size:12px;color:var(--muted);
}
.badge{
  display:inline-flex;align-items:center;
  height:22px;padding:0 9px;
  border-radius:var(--r-badge);
  background:var(--brand-soft);
  color:var(--brand);
  font-size:12px;
  font-weight:600;
  letter-spacing:.3px;
  white-space:nowrap;
}
.badge--accent{background:rgba(196,85,47,.12);color:var(--accent);}
.badge--ok{background:rgba(62,122,90,.12);color:var(--ok);}

/* ============ 节奏（深色） ============ */
.rhythm{background:var(--brand);color:var(--inv);scroll-margin-top:120px;}
.rhythm .section-label{color:#D9C9A6;}
.rhythm .section-label::after{background:rgba(251,248,242,.24);}
.rhythm .section-head h2{color:var(--inv);}
.rhythm .section-head p{color:rgba(251,248,242,.74);}
.timeline{display:grid;margin-top:6px;}
.tl-item{
  display:grid;
  grid-template-columns:132px 1fr;
  gap:28px;
  padding:24px 0;
  border-top:1px solid rgba(251,248,242,.18);
}
.tl-item:last-child{border-bottom:1px solid rgba(251,248,242,.18);}
.tl-item time{
  font-size:13px;
  letter-spacing:.5px;
  color:#D9C9A6;
  font-variant-numeric:tabular-nums;
  padding-top:3px;
}
.tl-item h3{font-size:18px;color:var(--inv);margin-bottom:6px;}
.tl-item p{font-size:14px;line-height:1.8;color:rgba(251,248,242,.75);}

/* ============ 步骤 ============ */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.step{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px 26px 26px;
  transition:border-color var(--dur) ease,box-shadow var(--dur) ease;
}
.step:hover{border-color:rgba(31,61,51,.3);box-shadow:var(--shadow-card);}
.step .num{
  font-family:var(--serif);
  font-size:26px;
  font-weight:700;
  color:var(--accent);
  letter-spacing:1px;
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:18px;margin:12px 0 10px;}
.step p{font-size:14px;line-height:1.8;color:var(--muted);}

/* ============ FAQ ============ */
.faq{max-width:840px;margin:0 auto;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 2px;
  border:0;
  background:transparent;
  text-align:left;
  font-size:16px;
  font-weight:700;
  color:var(--text);
  cursor:pointer;
  transition:color var(--dur) ease;
}
.faq-q:hover{color:var(--brand);}
.faq-icon{position:relative;flex:none;width:20px;height:20px;color:var(--brand);}
.faq-icon::before,
.faq-icon::after{
  content:"";position:absolute;background:currentColor;border-radius:1px;
  transition:transform var(--dur) ease,opacity var(--dur) ease;
}
.faq-icon::before{top:9px;left:2px;right:2px;height:2px;}
.faq-icon::after{left:9px;top:2px;bottom:2px;width:2px;}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .26s ease;
}
.faq-item.is-open .faq-a{max-height:360px;}
.faq-a p{
  padding:0 2px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
  max-width:720px;
}

/* ============ 底部 CTA ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--brand);
  color:var(--inv);
  scroll-margin-top:120px;
}
.cta-band::before{
  content:"";
  position:absolute;
  left:-100px;bottom:-160px;
  width:380px;height:380px;
  border:1px solid rgba(251,248,242,.12);
  border-radius:50%;
}
.cta-inner{
  position:relative;z-index:1;
  display:flex;align-items:center;justify-content:space-between;
  gap:36px;
  padding:56px 0;
}
.cta-inner h2{font-size:28px;color:var(--inv);margin-bottom:10px;}
.cta-inner p{font-size:15px;color:rgba(251,248,242,.78);max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:none;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg-2);
  border-top:1px solid var(--line);
  padding-top:56px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.25fr;
  gap:40px;
  padding-bottom:40px;
}
.footer-brand p{
  margin-top:14px;
  font-size:14px;
  line-height:1.85;
  color:var(--muted);
  max-width:280px;
}
.footer-col h4{
  font-size:14px;
  letter-spacing:.5px;
  margin-bottom:14px;
  color:var(--text);
}
.footer-col ul{display:grid;gap:10px;}
.footer-col a,
.footer-col span{font-size:14px;color:var(--muted);}
.footer-col a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px;
  padding:18px 0 24px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--muted);
}
.footer-bottom .compliance{color:#8C857A;}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .nav-hotwords{display:none;}
  .overview{grid-template-columns:1fr;gap:36px;}
  .stat-grid{grid-template-columns:repeat(4,1fr);}
}

@media (max-width:991px){
  .section{padding:72px 0;}
  .banner h1{font-size:34px;}
  .banner-inner{padding:56px 0;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1 / -1;}
  .footer-brand p{max-width:none;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:24px;padding:48px 0;}
  .nav-trends{max-width:38%;}
}

@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:56px 0;scroll-margin-top:104px;}
  .banner{min-height:240px;scroll-margin-top:104px;}
  .banner-inner{padding:44px 0;}
  .banner h1{font-size:28px;margin:14px 0 12px;}
  .banner-sub{font-size:15px;}
  .banner-actions{margin-top:22px;}
  .section-head h2{font-size:23px;}
  .section-head{margin-bottom:28px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:20px;}
  .card-grid{grid-template-columns:1fr;gap:20px;}
  .timeline .tl-item{grid-template-columns:1fr;gap:8px;padding:20px 0;}
  .tl-item time{padding-top:0;}
  .cta-inner h2{font-size:23px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 140px;}
  .nav-search{max-width:none;min-width:0;}
  .nav-top-inner{gap:12px;}
  .nav-cta{padding:0 12px;font-size:13.5px;}
  .brand-name{font-size:18px;}
  .nav-channels{gap:20px;}
  .nav-trends{display:none;}
  .nav-channels-inner{height:44px;}
  .faq-q{font-size:15px;padding:18px 0;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .crumbs .container{height:40px;font-size:12px;}
}

@media (max-width:519px){
  .nav-search{display:none;}
  .nav-top{height:56px;}
  .site-nav.is-condensed .nav-top{height:52px;}
  .banner h1{font-size:25px;}
  .stat-grid{grid-template-columns:1fr 1fr;}
  .stat b{font-size:26px;}
  .step{padding:22px 20px;}
  .crumbs em{max-width:150px;}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important;}
}