/* roulang page: index */
:root{
  --ink:#241F1C;
  --brand:#B8402C;
  --brand-deep:#8C2C1E;
  --brand-soft:#F3E2DC;
  --accent:#5E8577;
  --accent-soft:#E5EEE9;
  --bg:#F8F4ED;
  --bg-alt:#F1EAE0;
  --surface:#FFFFFF;
  --line:#E7DFD2;
  --muted:#6B6259;
  --on-dark:#F3EDE4;
  --radius:14px;
  --radius-sm:8px;
  --shadow-sm:0 1px 2px rgba(36,31,28,.05),0 8px 24px rgba(36,31,28,.06);
  --shadow-lg:0 14px 32px rgba(36,31,28,.10);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  --header-h:76px;
  --section-pad:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-family:var(--font-serif);font-weight:700;letter-spacing:.01em;}
p{margin:0 0 1.15em;}
p:last-child{margin-bottom:0;}
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
  border-radius:4px;
}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:var(--section-pad) 0;}
.section.alt{background:var(--bg-alt);}
.section.tight{padding-top:56px;}
.eyebrow{
  display:inline-block;
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.14em;
  color:var(--brand);
  margin-bottom:14px;
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:36px;
  margin-bottom:46px;
  flex-wrap:wrap;
}
.section-head h2{font-size:clamp(24px,2.6vw,32px);line-height:1.35;}
.section-desc{max-width:540px;color:var(--muted);font-size:15.5px;margin:0;}
.section-desc.center{margin:0 auto;text-align:center;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--radius-sm);
  font-size:15px;
  font-weight:600;
  font-family:var(--font-sans);
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .25s ease,color .25s ease,border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 4px 12px rgba(184,64,44,.18);}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:0 8px 18px rgba(140,44,30,.24);}
.btn-primary:active{transform:translateY(0);box-shadow:0 2px 6px rgba(140,44,30,.22);}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);}
.btn-ghost:active{background:#EBD3CB;}
.btn-lg{height:50px;padding:0 28px;font-size:16px;}
.btn-block{width:100%;}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--brand);
  font-weight:600;
  font-size:15px;
  position:relative;
  padding-bottom:2px;
}
.btn-text::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:0;height:1.5px;
  background:var(--brand);
  transition:width .25s ease;
}
.btn-text:hover::after,.btn-text:focus-visible::after{width:100%;}
.btn-text:active{color:var(--brand-deep);}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:999px;
  background:var(--brand-soft);
  color:var(--brand-deep);
  font-size:12px;
  letter-spacing:.02em;
  font-weight:600;
}
.badge.accent{background:var(--accent-soft);color:#3F6355;}
.tag{
  display:inline-flex;
  align-items:center;
  height:32px;
  padding:0 14px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--muted);
  font-size:14px;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease,transform .22s ease;
}
.tag:hover{background:var(--brand-soft);color:var(--brand-deep);border-color:#E3C7BE;transform:translateY(-1px);}

/* ---------- 页头 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(248,244,237,.96);
  backdrop-filter:saturate(140%) blur(6px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background-color .25s ease;
}
.site-header.scrolled{box-shadow:0 6px 20px rgba(36,31,28,.08);background:rgba(248,244,237,.99);}
.header-inner{
  min-height:var(--header-h);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{display:flex;align-items:center;gap:12px;flex:none;}
.brand-mark{
  width:40px;height:40px;
  border-radius:10px;
  background:var(--brand);
  color:#fff;
  font-family:var(--font-serif);
  font-size:20px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 4px 10px rgba(184,64,44,.22);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-family:var(--font-serif);font-size:19px;font-weight:700;letter-spacing:.04em;}
.brand-sub{font-size:11px;letter-spacing:.18em;color:var(--muted);margin-top:3px;}
.main-nav{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;
  padding:10px 12px;
  font-size:15px;
  font-weight:500;
  color:var(--ink);
  transition:color .22s ease;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:2px;
  height:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .25s ease;
}
.nav-link:hover{color:var(--brand);}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1);}
.nav-link.active{color:var(--brand);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:18px;flex:none;}
.header-actions .text-link{font-size:14px;color:var(--muted);transition:color .22s ease;}
.header-actions .text-link:hover{color:var(--brand);}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--line);
  border-radius:10px;
  background:var(--surface);
  cursor:pointer;
  padding:0;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
  transition:border-color .22s ease,background-color .22s ease;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s ease,opacity .25s ease;}
.nav-toggle:hover{border-color:var(--brand);}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.drawer-cta{display:none;}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--bg-alt);overflow:hidden;}
.hero::before{
  content:"";
  position:absolute;inset:0;
  background:url('/assets/images/de75a7512148bc81.webp') center/cover no-repeat;
  opacity:.14;
}
.hero::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(248,244,237,.35),rgba(248,244,237,.92));
}
.hero-inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1.08fr .92fr;
  gap:52px;
  padding:72px 0 64px;
  align-items:start;
}
.hero-ask{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:7px 16px 7px 12px;
  border-radius:999px;
  background:var(--surface);
  border:1px solid var(--line);
  font-size:13.5px;
  color:var(--brand-deep);
  font-weight:600;
  margin-bottom:20px;
}
.hero-ask .dot{width:8px;height:8px;border-radius:50%;background:var(--brand);flex:none;}
.hero h1{
  font-size:clamp(30px,3.9vw,50px);
  line-height:1.28;
  margin-bottom:20px;
}
.hero-lead{font-size:16.5px;line-height:1.85;color:#3D3733;margin-bottom:28px;max-width:620px;}
.hero-form{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px;
  box-shadow:var(--shadow-sm);
  max-width:620px;
}
.hero-form label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:10px;}
.form-row{display:flex;gap:12px;}
.form-row input{
  flex:1;
  height:48px;
  padding:0 16px;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  background:var(--bg);
  font-size:15px;
  font-family:var(--font-sans);
  color:var(--ink);
  transition:border-color .22s ease,box-shadow .22s ease,background-color .22s ease;
}
.form-row input::placeholder{color:#A29889;}
.form-row input:focus{
  outline:none;
  border-color:var(--brand);
  background:var(--surface);
  box-shadow:0 0 0 3px rgba(184,64,44,.12);
}
.form-row .btn{flex:none;}
.form-note{font-size:13px;color:var(--muted);margin:12px 0 0;}
.hero-stats{
  grid-column:1 / -1;
  display:flex;
  flex-wrap:wrap;
  margin-top:8px;
  padding-top:26px;
  border-top:1px solid rgba(36,31,28,.10);
}
.hero-stats .item{padding:0 26px;border-left:1px solid rgba(36,31,28,.12);}
.hero-stats .item:first-child{padding-left:0;border-left:none;}
.hero-stats .num{font-family:var(--font-serif);font-size:26px;color:var(--brand);line-height:1.2;}
.hero-stats .lbl{font-size:13px;color:var(--muted);}

.hero-panel{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px;
  box-shadow:var(--shadow-sm),inset 0 0 0 6px rgba(184,64,44,.035);
}
.hero-panel h2{font-size:18px;margin-bottom:6px;}
.hero-panel .panel-sub{font-size:13.5px;color:var(--muted);margin-bottom:18px;}
.quick-list{display:flex;flex-direction:column;}
.quick-item{
  display:flex;
  align-items:center;
  gap:14px;
  padding:14px 4px;
  border-top:1px dashed var(--line);
  transition:background-color .22s ease,padding-left .22s ease;
}
.quick-item:first-child{border-top:none;}
.quick-item:hover{background:var(--bg);padding-left:10px;}
.quick-icon{
  width:36px;height:36px;
  flex:none;
  border-radius:10px;
  background:var(--brand-soft);
  color:var(--brand-deep);
  display:flex;
  align-items:center;
  justify-content:center;
  font-family:var(--font-serif);
  font-size:15px;
  font-weight:700;
}
.quick-body{flex:1;min-width:0;}
.quick-body strong{display:block;font-size:15px;font-weight:600;}
.quick-body span{font-size:13px;color:var(--muted);line-height:1.6;display:block;}
.quick-arrow{color:var(--brand);font-size:16px;flex:none;transition:transform .22s ease;}
.quick-item:hover .quick-arrow{transform:translateX(4px);}

/* ---------- 下载区 ---------- */
.download-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.dl-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px 24px;
  box-shadow:var(--shadow-sm);
  display:flex;
  flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.dl-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#DFCEC4;}
.dl-top{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.dl-icon{
  width:42px;height:42px;flex:none;
  border-radius:12px;
  background:var(--accent-soft);
  color:#3F6355;
  display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;font-family:var(--font-serif);
}
.dl-card h3{font-size:18px;}
.dl-card p{font-size:14.5px;color:var(--muted);line-height:1.75;margin-bottom:20px;}
.dl-card .btn{margin-top:auto;}
.dl-note{margin-top:26px;font-size:13.5px;color:var(--muted);}

/* ---------- 通道矩阵 ---------- */
.matrix-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.matrix-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  display:flex;
  flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.matrix-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#DFCEC4;}
.matrix-card.lg{grid-column:span 6;}
.matrix-card.sm{grid-column:span 3;padding:24px;}
.matrix-figure{position:relative;aspect-ratio:16/9;background:var(--bg-alt);overflow:hidden;}
.matrix-figure img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.matrix-card:hover .matrix-figure img{transform:scale(1.04);}
.matrix-badge{
  position:absolute;top:14px;right:14px;
  height:26px;padding:0 12px;
  border-radius:999px;
  background:rgba(255,255,255,.92);
  color:var(--brand-deep);
  font-size:12px;font-weight:600;
  display:inline-flex;align-items:center;
}
.matrix-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.matrix-body h3{font-size:19px;margin-bottom:8px;}
.matrix-body p{font-size:14.5px;color:var(--muted);line-height:1.75;margin-bottom:16px;}
.matrix-body .btn-text{margin-top:auto;align-self:flex-start;}
.matrix-card.sm .sm-icon{
  width:38px;height:38px;border-radius:11px;
  background:var(--brand-soft);color:var(--brand-deep);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-serif);font-size:15px;font-weight:700;
  margin-bottom:14px;
}
.matrix-card.sm h3{font-size:16.5px;margin-bottom:6px;}
.matrix-card.sm p{font-size:14px;margin-bottom:0;}
.matrix-card.sm .mini-tag{font-size:12px;color:var(--accent);font-weight:600;letter-spacing:.04em;margin-top:12px;}

/* ---------- 数据条 ---------- */
.stats-row{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
}
.stat{padding:30px 26px;border-left:1px solid var(--line);}
.stat:first-child{border-left:none;}
.stat-num{font-family:var(--font-serif);font-size:34px;line-height:1.15;color:var(--brand);}
.stat-num small{font-size:15px;font-family:var(--font-sans);color:var(--muted);margin-left:4px;font-weight:500;}
.stat-lbl{font-size:13.5px;color:var(--muted);margin-top:8px;}

/* ---------- 前后对比 ---------- */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.compare-col{
  border-radius:var(--radius);
  padding:30px 28px;
  border:1px solid var(--line);
  background:var(--surface);
}
.compare-col.before{background:var(--surface);}
.compare-col.after{background:#FBF6F2;border-color:#E3C7BE;box-shadow:var(--shadow-sm);}
.compare-col h3{font-size:19px;margin-bottom:18px;display:flex;align-items:center;gap:10px;}
.compare-col h3 .mark{width:10px;height:10px;border-radius:50%;flex:none;}
.compare-col.before h3 .mark{background:#C6BAA9;}
.compare-col.after h3 .mark{background:var(--brand);}
.compare-list li{
  display:flex;
  gap:12px;
  padding:13px 0;
  border-top:1px dashed var(--line);
  font-size:15px;
  line-height:1.72;
  color:#4A423C;
}
.compare-list li:first-child{border-top:none;padding-top:0;}
.compare-list li .sym{flex:none;font-weight:700;color:#B29F8C;}
.compare-col.after .compare-list li .sym{color:var(--accent);}

/* ---------- 流程 ---------- */
.flow{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  position:relative;
}
.flow-step{position:relative;padding-top:34px;}
.flow-step::before{
  content:"";
  position:absolute;
  top:9px;left:44px;right:-24px;
  border-top:1px dashed #C9BCA9;
}
.flow-step:last-child::before{display:none;}
.flow-dot{
  position:absolute;top:0;left:0;
  width:20px;height:20px;
  border-radius:50%;
  background:var(--surface);
  border:2px solid var(--brand);
  display:flex;align-items:center;justify-content:center;
}
.flow-dot::after{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);}
.flow-num{font-family:var(--font-serif);font-size:13px;color:var(--brand);letter-spacing:.1em;margin-bottom:6px;}
.flow-step h3{font-size:17.5px;margin-bottom:8px;}
.flow-step p{font-size:14.5px;color:var(--muted);line-height:1.75;margin:0;}

/* ---------- 保障清单 ---------- */
.guard-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:start;}
.guard-left h2{font-size:clamp(24px,2.6vw,32px);line-height:1.35;margin-bottom:16px;}
.guard-left p{color:var(--muted);font-size:15.5px;margin-bottom:26px;}
.guard-list li{
  display:flex;
  gap:14px;
  padding:15px 0;
  border-top:1px dashed var(--line);
  font-size:15.2px;
  line-height:1.72;
}
.guard-list li:first-child{border-top:none;padding-top:0;}
.check{
  flex:none;
  width:20px;height:20px;
  margin-top:4px;
  border-radius:50%;
  background:var(--accent-soft);
  color:#3F6355;
  font-size:12px;
  display:flex;align-items:center;justify-content:center;
  font-weight:700;
}

/* ---------- 标签矩阵 ---------- */
.tag-groups{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;}
.tag-group h3{
  font-size:16px;
  margin-bottom:14px;
  padding-bottom:10px;
  border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:8px;
}
.tag-group h3 .bar{width:3px;height:14px;background:var(--brand);border-radius:2px;}
.tag-wrap{display:flex;flex-wrap:wrap;gap:10px;}

/* ---------- 场景墙 ---------- */
.wall-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:20px;align-items:start;}
.wall-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.wall-card:nth-child(even){margin-top:26px;}
.wall-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#DFCEC4;}
.wall-figure{aspect-ratio:4/3;overflow:hidden;background:var(--bg-alt);}
.wall-figure img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.wall-card:hover .wall-figure img{transform:scale(1.05);}
.wall-body{padding:16px 16px 18px;}
.wall-body h3{font-size:15.5px;margin-bottom:6px;line-height:1.5;}
.wall-body p{font-size:13.5px;color:var(--muted);line-height:1.7;margin-bottom:12px;}

/* ---------- 资讯 ---------- */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px;
  box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#DFCEC4;}
.news-card .badge{align-self:flex-start;margin-bottom:14px;}
.news-card h3{font-size:17.5px;line-height:1.55;margin-bottom:10px;}
.news-card p{
  font-size:14.5px;
  color:var(--muted);
  line-height:1.75;
  margin-bottom:18px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-meta{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--muted);
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
}
.news-empty{
  grid-column:1 / -1;
  text-align:center;
  padding:56px 24px;
  border:1px dashed var(--line);
  border-radius:var(--radius);
  background:var(--surface);
  color:var(--muted);
  font-size:15px;
}
.news-empty .empty-icon{
  width:46px;height:46px;
  margin:0 auto 14px;
  border-radius:50%;
  background:var(--brand-soft);
  color:var(--brand-deep);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-serif);font-size:18px;font-weight:700;
}
.news-empty a{color:var(--brand);font-weight:600;}

/* ---------- FAQ ---------- */
.faq-list{max-width:880px;margin:0 auto;}
.faq-item{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);margin-bottom:14px;overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;}
.faq-item.open{border-color:#DFCEC4;box-shadow:var(--shadow-sm);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:20px 24px;
  background:transparent;
  border:none;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  cursor:pointer;
  font-family:var(--font-sans);
  transition:color .22s ease,background-color .22s ease;
}
.faq-q:hover{color:var(--brand);background:var(--bg);}
.faq-icon{position:relative;width:16px;height:16px;flex:none;}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--brand);
  border-radius:2px;
  transition:transform .24s ease,opacity .24s ease;
}
.faq-icon::before{left:0;right:0;top:7px;height:2px;}
.faq-icon::after{top:0;bottom:0;left:7px;width:2px;}
.faq-item.open .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease;}
.faq-a-inner{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--muted);}

/* ---------- 使用指南 ---------- */
.guide-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:start;}
.guide-list li{display:flex;gap:16px;padding:18px 0;border-top:1px solid var(--line);}
.guide-list li:first-child{border-top:none;padding-top:0;}
.guide-num{
  flex:none;
  width:30px;height:30px;
  border-radius:50%;
  border:1px solid var(--brand);
  color:var(--brand);
  font-size:13.5px;
  font-family:var(--font-serif);
  display:flex;align-items:center;justify-content:center;
  margin-top:2px;
}
.guide-list h3{font-size:16.5px;margin-bottom:5px;}
.guide-list p{font-size:14.5px;color:var(--muted);line-height:1.75;margin:0;}
.guide-panel{
  background:var(--bg-alt);
  border-radius:var(--radius);
  padding:30px 28px;
  border:1px solid #E4DACA;
}
.guide-panel h3{font-size:17.5px;margin-bottom:16px;}
.guide-panel li{
  display:flex;
  gap:12px;
  padding:12px 0;
  border-top:1px dashed #D9CDB9;
  font-size:14.5px;
  line-height:1.75;
  color:#4A423C;
}
.guide-panel li:first-child{border-top:none;padding-top:0;}
.guide-panel .pip{width:6px;height:6px;border-radius:50%;background:var(--brand);flex:none;margin-top:11px;}
.guide-panel .btn{margin-top:22px;}

/* ---------- 保障条 ---------- */
.trust-bar{background:var(--ink);color:var(--on-dark);padding:26px 0;}
.trust-inner{display:flex;align-items:center;justify-content:center;gap:0;flex-wrap:wrap;}
.trust-inner span{font-size:14.5px;letter-spacing:.02em;padding:0 22px;position:relative;color:rgba(243,237,228,.9);}
.trust-inner span::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  transform:translateY(-50%);
  width:5px;height:5px;
  border-radius:50%;
  background:var(--brand);
}
.trust-inner span:first-child::before{display:none;}

/* ---------- CTA ---------- */
.cta-box{
  background:var(--surface);
  border:1px solid #E3C7BE;
  border-radius:22px;
  padding:52px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
  box-shadow:var(--shadow-sm);
  position:relative;
  overflow:hidden;
}
.cta-box::after{
  content:"";
  position:absolute;
  right:-60px;top:-60px;
  width:200px;height:200px;
  border-radius:50%;
  border:1px solid rgba(184,64,44,.12);
}
.cta-box h2{font-size:clamp(22px,2.5vw,30px);line-height:1.4;margin-bottom:12px;}
.cta-box p{color:var(--muted);font-size:15.5px;margin:0;max-width:560px;}
.cta-actions{display:flex;align-items:center;gap:20px;flex:none;position:relative;z-index:2;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--on-dark);padding:64px 0 32px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;}
.brand-footer .brand-mark{background:var(--brand);}
.brand-footer .brand-name{color:var(--on-dark);}
.brand-footer .brand-sub{color:rgba(243,237,228,.6);}
.footer-desc{font-size:14.5px;line-height:1.85;color:rgba(243,237,228,.72);margin-top:18px;max-width:320px;}
.footer-col h4{font-size:14px;font-weight:700;color:var(--on-dark);margin-bottom:16px;letter-spacing:.04em;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:15px;color:rgba(243,237,228,.72);transition:color .22s ease;}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.footer-bottom{
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid rgba(243,237,228,.14);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:rgba(243,237,228,.55);margin:0;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{max-width:100%;padding:0 22px;}
  .wall-grid{grid-template-columns:repeat(3,1fr);}
  .wall-card:nth-child(even){margin-top:0;}
  .matrix-card.sm{grid-column:span 4;}
}
@media (max-width:991px){
  :root{--section-pad:64px;--header-h:68px;}
  .nav-toggle{display:flex;}
  .header-actions .btn-nav,.header-actions .text-link{display:none;}
  .main-nav{
    position:fixed;
    top:var(--header-h);
    left:0;right:0;bottom:0;
    background:var(--bg);
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:20px 22px 120px;
    transform:translateX(105%);
    transition:transform .28s ease;
    z-index:70;
    overflow-y:auto;
    border-top:1px solid var(--line);
    display:flex;
  }
  .main-nav.open{transform:translateX(0);}
  .nav-link{font-size:17px;padding:16px 4px;border-bottom:1px solid var(--line);}
  .nav-link::after{display:none;}
  .nav-link.active{color:var(--brand);}
  .drawer-cta{display:block;margin-top:26px;}
  .drawer-cta .btn{width:100%;height:48px;}
  .hero-inner{grid-template-columns:1fr;gap:36px;padding:52px 0 48px;}
  .hero-stats{grid-column:1;}
  .download-grid{grid-template-columns:1fr;gap:18px;}
  .matrix-card.lg,.matrix-card.sm{grid-column:span 6;}
  .stats-row{grid-template-columns:repeat(2,1fr);}
  .stat:nth-child(3){border-left:none;}
  .stat:nth-child(n+3){border-top:1px solid var(--line);}
  .compare-grid{grid-template-columns:1fr;}
  .flow{grid-template-columns:repeat(2,1fr);gap:30px 24px;}
  .flow-step:nth-child(2)::before{display:none;}
  .guard-grid{grid-template-columns:1fr;gap:36px;}
  .tag-groups{grid-template-columns:1fr;gap:26px;}
  .wall-grid{grid-template-columns:repeat(2,1fr);}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .guide-grid{grid-template-columns:1fr;gap:32px;}
  .cta-box{flex-direction:column;align-items:flex-start;padding:40px 30px;gap:26px;}
  .cta-actions{flex-wrap:wrap;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:767px){
  :root{--section-pad:52px;}
  body{font-size:16px;}
  .section-head{margin-bottom:32px;gap:16px;}
  .hero h1{font-size:29px;}
  .hero-lead{font-size:15.5px;}
  .form-row{flex-direction:column;}
  .form-row .btn{width:100%;}
  .hero-stats .item{padding:0 16px 0 0;border-left:none;margin-right:16px;margin-top:12px;}
  .hero-stats .item:first-child{padding-left:0;}
  .matrix-card.lg,.matrix-card.sm{grid-column:span 12;}
  .stats-row{grid-template-columns:1fr;}
  .stat{border-left:none;border-top:1px solid var(--line);}
  .stat:first-child{border-top:none;}
  .flow{grid-template-columns:1fr;gap:26px;}
  .flow-step{padding-left:36px;padding-top:0;}
  .flow-step::before{display:none;}
  .flow-dot{top:3px;left:0;}
  .wall-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .faq-q{font-size:16px;padding:17px 18px;}
  .faq-a-inner{padding:0 18px 18px;}
  .cta-box{padding:32px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .trust-inner{justify-content:flex-start;}
  .trust-inner span{padding:6px 16px 6px 14px;font-size:14px;}
  .trust-inner span::before{left:0;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:479px){
  .container{padding:0 18px;}
  .hero-form{padding:18px;}
  .brand-name{font-size:17px;}
  .hero-stats .item{width:50%;margin-right:0;}
  .dl-card{padding:22px 20px;}
  .news-card{padding:20px;}
}

/* roulang page: article */
:root{
  --ink:#241F1C;
  --brand:#B8402C;
  --brand-deep:#8C2C1E;
  --brand-soft:#F3E2DC;
  --accent:#5E8577;
  --accent-soft:#E5EEE9;
  --bg:#F8F4ED;
  --bg-alt:#F1EAE0;
  --surface:#FFFFFF;
  --line:#E7DFD2;
  --muted:#6B6259;
  --on-dark:#F3EDE4;
  --radius:14px;
  --radius-sm:8px;
  --shadow-sm:0 1px 2px rgba(36,31,28,.05),0 8px 24px rgba(36,31,28,.06);
  --shadow-lg:0 14px 32px rgba(36,31,28,.10);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  --header-h:76px;
  --section-pad:88px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body.nav-open{overflow:hidden;}
img{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
  border-radius:4px;
}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:var(--section-pad) 0;}
.section.alt{background:var(--bg-alt);}
.section.tight{padding-top:56px;}
.eyebrow{
  display:inline-block;
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.14em;
  color:var(--brand);
  margin-bottom:14px;
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:36px;
  margin-bottom:40px;
  flex-wrap:wrap;
}
.section-head h2{font-family:var(--font-serif);font-size:clamp(24px,2.6vw,32px);line-height:1.35;margin:0;}
.section-desc{max-width:540px;color:var(--muted);font-size:15.5px;margin:0;}
/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--radius-sm);
  font-size:15px;
  font-weight:600;
  font-family:var(--font-sans);
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .25s ease,color .25s ease,border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 4px 12px rgba(184,64,44,.18);}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:0 8px 18px rgba(140,44,30,.24);}
.btn-primary:active{transform:translateY(0);box-shadow:0 2px 6px rgba(140,44,30,.22);}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);}
.btn-ghost:active{background:#EBD3CB;}
.btn-lg{height:50px;padding:0 28px;font-size:16px;}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--brand);
  font-weight:600;
  font-size:15px;
  position:relative;
  padding-bottom:2px;
}
.btn-text::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:0;height:1.5px;
  background:var(--brand);
  transition:width .25s ease;
}
.btn-text:hover::after,.btn-text:focus-visible::after{width:100%;}
.btn-text:active{color:var(--brand-deep);}
/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:999px;
  background:var(--brand-soft);
  color:var(--brand-deep);
  font-size:12px;
  letter-spacing:.02em;
  font-weight:600;
  white-space:nowrap;
}
.badge.accent{background:var(--accent-soft);color:#3F6355;}
/* ---------- 页头 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(248,244,237,.96);
  backdrop-filter:saturate(140%) blur(6px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background-color .25s ease;
}
.site-header.scrolled{box-shadow:0 6px 20px rgba(36,31,28,.08);background:rgba(248,244,237,.99);}
.header-inner{
  min-height:var(--header-h);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{display:flex;align-items:center;gap:12px;flex:none;}
.brand-mark{
  width:40px;height:40px;
  border-radius:10px;
  background:var(--brand);
  color:#fff;
  font-family:var(--font-serif);
  font-size:20px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 4px 10px rgba(184,64,44,.22);
  flex:none;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-family:var(--font-serif);font-size:19px;font-weight:700;letter-spacing:.04em;}
.brand-sub{font-size:11px;letter-spacing:.18em;color:var(--muted);margin-top:3px;}
.main-nav{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;
  padding:10px 12px;
  font-size:15px;
  font-weight:500;
  color:var(--ink);
  transition:color .22s ease;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:2px;
  height:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .25s ease;
}
.nav-link:hover{color:var(--brand);}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1);}
.nav-link.active{color:var(--brand);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:18px;flex:none;}
.header-actions .text-link{font-size:14px;color:var(--muted);transition:color .22s ease;}
.header-actions .text-link:hover{color:var(--brand);}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--line);
  border-radius:10px;
  background:var(--surface);
  cursor:pointer;
  padding:0;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
  transition:border-color .22s ease,background-color .22s ease;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s ease,opacity .25s ease;}
.nav-toggle:hover{border-color:var(--brand);}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.drawer-cta{display:none;}
/* ---------- 阅读进度 ---------- */
.progress-bar{
  position:fixed;
  top:0;left:0;
  height:3px;
  width:0;
  background:var(--brand);
  z-index:200;
  transition:width .12s linear;
}
/* ---------- 文章头部 ---------- */
.article-hero{
  background:var(--bg-alt);
  border-bottom:1px solid var(--line);
  padding:52px 0 44px;
}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:9px;
  font-size:14px;
  color:var(--muted);
  margin-bottom:18px;
  flex-wrap:wrap;
}
.breadcrumb a{transition:color .22s ease;}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#C9BEB0;}
.article-hero h1{
  font-family:var(--font-serif);
  font-size:clamp(28px,3.6vw,40px);
  line-height:1.34;
  margin:14px 0 20px;
  max-width:920px;
  letter-spacing:.01em;
}
.article-meta{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:12px;
  font-size:14px;
  color:var(--muted);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C9BEB0;flex:none;}
.article-hero .hero-badges{display:flex;gap:10px;flex-wrap:wrap;align-items:center;}
/* ---------- 正文布局 ---------- */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:52px;
  align-items:start;
}
.article-content{max-width:760px;min-width:0;}
.article-content p{margin:0 0 1.15em;line-height:1.9;}
.article-content h2{
  font-family:var(--font-serif);
  font-size:clamp(22px,2.2vw,26px);
  line-height:1.42;
  margin:40px 0 16px;
  padding-left:14px;
  border-left:4px solid var(--brand);
}
.article-content h3{
  font-size:20px;
  line-height:1.5;
  margin:30px 0 12px;
  font-weight:700;
}
.article-content h4{font-size:17px;margin:24px 0 10px;}
.article-content blockquote{
  margin:24px 0;
  padding:16px 22px;
  background:var(--bg-alt);
  border-left:3px solid var(--accent);
  border-radius:0 10px 10px 0;
  color:#4A423B;
}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content ul,.article-content ol{padding-left:22px;margin:0 0 1.15em;}
.article-content li{margin-bottom:8px;line-height:1.85;}
.article-content ul li::marker{color:var(--brand);}
.article-content ol li::marker{color:var(--brand);font-weight:600;}
.article-content img{
  width:100%;
  height:auto;
  border-radius:12px;
  margin:22px 0 10px;
  background:var(--bg-alt);
  box-shadow:inset 0 0 0 1px rgba(36,31,28,.06);
}
.article-content figure{margin:22px 0;}
.article-content figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px;}
.article-content a{color:var(--brand);border-bottom:1px solid rgba(184,64,44,.35);transition:color .22s ease,border-color .22s ease;}
.article-content a:hover{color:var(--brand-deep);border-color:var(--brand-deep);}
.article-content table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;}
.article-content th,.article-content td{border:none;border-bottom:1px solid var(--line);padding:11px 14px;text-align:left;vertical-align:top;}
.article-content th{font-weight:700;background:var(--bg-alt);}
.article-content pre{
  background:#241F1C;
  color:#EDE5D9;
  padding:18px 20px;
  border-radius:10px;
  overflow-x:auto;
  font-size:14px;
  line-height:1.7;
  margin:22px 0;
}
.article-content code{
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;
  font-size:.92em;
  background:var(--bg-alt);
  padding:2px 6px;
  border-radius:5px;
}
.article-content pre code{background:none;padding:0;color:inherit;}
.article-content hr{border:none;border-top:1px solid var(--line);margin:34px 0;}
.empty-state{
  text-align:center;
  padding:56px 24px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
}
.empty-state .empty-title{
  font-family:var(--font-serif);
  font-size:22px;
  font-weight:700;
  margin:0 0 10px;
}
.empty-state p{color:var(--muted);margin:0 0 22px;font-size:15.5px;}
/* ---------- 侧栏 ---------- */
.article-side{display:flex;flex-direction:column;gap:22px;position:sticky;top:calc(var(--header-h) + 20px);min-width:0;}
.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px;
  box-shadow:var(--shadow-sm);
}
.side-title{
  font-size:15px;
  font-weight:700;
  margin:0 0 16px;
  display:flex;
  align-items:center;
  gap:8px;
  letter-spacing:.02em;
}
.side-title::before{
  content:"";
  width:4px;height:15px;
  background:var(--brand);
  border-radius:2px;
}
.side-list{list-style:none;margin:0;padding:0;}
.side-list li + li{margin-top:14px;padding-top:14px;border-top:1px solid var(--line);}
.side-list a{display:block;font-size:15px;font-weight:600;line-height:1.6;transition:color .22s ease;}
.side-list a:hover{color:var(--brand);}
.side-list span{display:block;font-size:13px;color:var(--muted);margin-top:5px;line-height:1.7;}
.side-card.accent-card{background:var(--brand-soft);border-color:#E3C7BE;}
.side-card.accent-card .side-title::before{background:var(--brand-deep);}
.quick-links{display:flex;flex-direction:column;gap:10px;}
.quick-links a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  height:42px;
  padding:0 14px;
  border-radius:var(--radius-sm);
  background:var(--surface);
  border:1px solid #E3C7BE;
  font-size:14.5px;
  font-weight:600;
  transition:background-color .22s ease,transform .22s ease,border-color .22s ease;
}
.quick-links a:hover{background:#fff;transform:translateY(-1px);border-color:var(--brand);}
.quick-links a::after{content:"→";color:var(--brand);font-size:15px;}
/* ---------- 要点卡 ---------- */
.points-card{
  background:var(--bg-alt);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:34px 36px;
  max-width:860px;
  margin:0 auto;
}
.points-card h2{
  font-family:var(--font-serif);
  font-size:22px;
  margin:0 0 20px;
}
.points-list{list-style:none;margin:0;padding:0;display:grid;gap:16px;}
.points-list li{display:flex;gap:14px;align-items:flex-start;font-size:15.5px;line-height:1.8;}
.points-list .point-num{
  flex:none;
  width:26px;height:26px;
  border-radius:50%;
  background:var(--brand);
  color:#fff;
  font-size:13px;
  font-weight:700;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  margin-top:3px;
}
/* ---------- 指南三列 ---------- */
.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.guide-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px 24px;
  box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.guide-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:#DCD0BF;}
.guide-item .num{
  font-family:var(--font-serif);
  font-size:22px;
  color:var(--brand);
  font-weight:700;
  margin-bottom:10px;
}
.guide-item h3{font-size:17px;margin:0 0 10px;line-height:1.5;}
.guide-item p{margin:0;font-size:15px;color:var(--muted);line-height:1.8;}
/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:0 22px;
  margin-bottom:14px;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item:hover{border-color:#DCD0BF;box-shadow:var(--shadow-sm);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:19px 0;
  font-size:16.5px;
  font-weight:700;
  line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  flex:none;
  width:26px;height:26px;
  border-radius:50%;
  border:1px solid var(--line);
  color:var(--brand);
  font-size:17px;
  font-weight:600;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  transition:transform .24s ease,background-color .24s ease;
}
.faq-item[open] summary::after{content:"−";background:var(--brand-soft);transform:rotate(180deg);}
.faq-body{padding:0 0 22px;font-size:15px;color:var(--muted);line-height:1.85;}
.faq-body p{margin:0 0 10px;}
.faq-body p:last-child{margin-bottom:0;}
/* ---------- 文末引导 ---------- */
.cta-dark{
  background:var(--ink);
  color:var(--on-dark);
  border-radius:18px;
  padding:44px 46px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:34px;
  flex-wrap:wrap;
}
.cta-dark h2{
  font-family:var(--font-serif);
  font-size:clamp(22px,2.4vw,28px);
  line-height:1.4;
  margin:0 0 10px;
}
.cta-dark p{margin:0;font-size:15px;color:rgba(243,237,228,.72);max-width:560px;}
.cta-dark .cta-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap;}
.cta-dark .btn-text{color:var(--on-dark);}
.cta-dark .btn-text::after{background:var(--on-dark);}
/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);
  color:var(--on-dark);
  padding:64px 0 32px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.7fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(243,237,228,.14);
}
.footer-desc{
  font-size:14.5px;
  line-height:1.85;
  color:rgba(243,237,228,.66);
  margin:18px 0 0;
  max-width:330px;
}
.brand-footer .brand-name{color:var(--on-dark);}
.brand-footer .brand-sub{color:rgba(243,237,228,.6);}
.footer-col h4{font-size:14px;margin:0 0 16px;color:var(--on-dark);letter-spacing:.02em;}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li + li{margin-top:10px;}
.footer-col a{font-size:15px;color:rgba(243,237,228,.72);transition:color .22s ease;}
.footer-col a:hover{color:#fff;text-decoration:underline;}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:22px;
  font-size:13px;
  color:rgba(243,237,228,.55);
}
.footer-bottom p{margin:0;}
/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  :root{--section-pad:64px;--header-h:68px;}
  .container{padding:0 20px;}
  .article-layout{grid-template-columns:minmax(0,1fr) 278px;gap:36px;}
  .main-nav{gap:0;}
  .nav-link{padding:10px 9px;font-size:14.5px;}
  .header-actions{gap:12px;}
}
@media (max-width:991px){
  .nav-toggle{display:inline-flex;}
  .main-nav{
    position:fixed;
    top:var(--header-h);
    left:0;right:0;bottom:0;
    background:var(--bg);
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:18px 20px 110px;
    border-top:1px solid var(--line);
    transform:translateY(-10px);
    opacity:0;
    visibility:hidden;
    pointer-events:none;
    overflow-y:auto;
    transition:opacity .25s ease,transform .25s ease,visibility .25s ease;
    z-index:79;
  }
  .main-nav.is-open{opacity:1;transform:translateY(0);visibility:visible;pointer-events:auto;}
  .nav-link{padding:15px 4px;font-size:17px;border-bottom:1px solid var(--line);}
  .nav-link::after{display:none;}
  .drawer-cta{display:block;margin-top:22px;}
  .header-actions .text-link,.header-actions .btn-nav{display:none;}
  .article-layout{grid-template-columns:1fr;gap:32px;}
  .article-side{position:static;}
  .article-content{max-width:none;}
  .guide-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .article-hero{padding:40px 0 34px;}
}
@media (max-width:767px){
  :root{--section-pad:52px;--header-h:64px;}
  body{font-size:16px;}
  .section-head{margin-bottom:28px;gap:16px;}
  .article-hero h1{font-size:26px;line-height:1.4;}
  .article-content h2{font-size:21px;margin-top:32px;}
  .article-content h3{font-size:18px;}
  .guide-grid{grid-template-columns:1fr;}
  .points-card{padding:26px 22px;}
  .cta-dark{padding:32px 24px;gap:24px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .faq-item{padding:0 18px;}
  .faq-item summary{font-size:16px;padding:16px 0;}
}
@media (max-width:479px){
  .btn{width:100%;}
  .btn-nav,.header-actions .btn{width:auto;}
  .cta-dark .cta-actions{width:100%;}
  .cta-dark .cta-actions .btn{width:100%;}
  .article-meta{font-size:13px;gap:8px;}
  .side-card{padding:18px;}
}

/* roulang page: category1 */
:root{
  --ink:#241F1C;
  --brand:#B8402C;
  --brand-deep:#8C2C1E;
  --brand-soft:#F3E2DC;
  --accent:#5E8577;
  --accent-soft:#E5EEE9;
  --bg:#F8F4ED;
  --bg-alt:#F1EAE0;
  --surface:#FFFFFF;
  --line:#E7DFD2;
  --muted:#6B6259;
  --on-dark:#F3EDE4;
  --radius:14px;
  --radius-sm:8px;
  --shadow-sm:0 1px 2px rgba(36,31,28,.05),0 8px 24px rgba(36,31,28,.06);
  --shadow-lg:0 14px 32px rgba(36,31,28,.10);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  --header-h:76px;
  --section-pad:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:700;color:var(--ink);}
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
  border-radius:4px;
}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:var(--section-pad) 0;}
.section.alt{background:var(--bg-alt);}
.section.tight{padding-top:56px;}
.eyebrow{
  display:inline-block;
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.14em;
  color:var(--brand);
  margin-bottom:14px;
  font-family:var(--font-sans);
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:36px;
  margin-bottom:46px;
  flex-wrap:wrap;
}
.section-head h2{font-size:clamp(24px,2.6vw,32px);line-height:1.35;margin:0;}
.section-desc{max-width:560px;color:var(--muted);font-size:15.5px;margin:0;}
/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--radius-sm);
  font-size:15px;
  font-weight:600;
  font-family:var(--font-sans);
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .25s ease,color .25s ease,border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 4px 12px rgba(184,64,44,.18);}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:0 8px 18px rgba(140,44,30,.24);}
.btn-primary:active{transform:translateY(0);box-shadow:0 2px 6px rgba(140,44,30,.22);}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);}
.btn-ghost:active{background:#EBD3CB;}
.btn-lg{height:50px;padding:0 28px;font-size:16px;}
.btn-block{width:100%;}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--brand);
  font-weight:600;
  font-size:15px;
  position:relative;
  padding-bottom:2px;
}
.btn-text::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:0;height:1.5px;
  background:var(--brand);
  transition:width .25s ease;
}
.btn-text:hover::after,.btn-text:focus-visible::after{width:100%;}
.btn-text:active{color:var(--brand-deep);}
/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:999px;
  background:var(--brand-soft);
  color:var(--brand-deep);
  font-size:12px;
  letter-spacing:.02em;
  font-weight:600;
}
.badge.accent{background:var(--accent-soft);color:#3F6355;}
.tag{
  display:inline-flex;
  align-items:center;
  height:32px;
  padding:0 14px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--muted);
  font-size:14px;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease,transform .22s ease;
}
.tag:hover{background:var(--brand-soft);color:var(--brand-deep);border-color:#E3C7BE;transform:translateY(-1px);}
/* ---------- 页头 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(248,244,237,.96);
  backdrop-filter:saturate(140%) blur(6px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background-color .25s ease;
}
.site-header.scrolled{box-shadow:0 6px 20px rgba(36,31,28,.08);background:rgba(248,244,237,.99);}
.header-inner{
  min-height:var(--header-h);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{display:flex;align-items:center;gap:12px;flex:none;}
.brand-mark{
  width:40px;height:40px;
  border-radius:10px;
  background:var(--brand);
  color:#fff;
  font-family:var(--font-serif);
  font-size:20px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 4px 10px rgba(184,64,44,.22);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-family:var(--font-serif);font-size:19px;font-weight:700;letter-spacing:.04em;}
.brand-sub{font-size:11px;letter-spacing:.18em;color:var(--muted);margin-top:3px;}
.main-nav{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;
  padding:10px 12px;
  font-size:15px;
  font-weight:500;
  color:var(--ink);
  transition:color .22s ease;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:2px;
  height:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .25s ease;
}
.nav-link:hover{color:var(--brand);}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1);}
.nav-link.active{color:var(--brand);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:18px;flex:none;}
.header-actions .text-link{font-size:14px;color:var(--muted);transition:color .22s ease;}
.header-actions .text-link:hover{color:var(--brand);}
.header-actions .btn-nav{height:44px;padding:0 22px;}
.drawer-cta{display:none;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--line);
  border-radius:10px;
  background:var(--surface);
  cursor:pointer;
  padding:0;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
  transition:border-color .22s ease,background-color .22s ease;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s ease,opacity .25s ease;}
.nav-toggle:hover{border-color:var(--brand);}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
/* ---------- 分类页头 ---------- */
.page-hero{
  background:var(--bg-alt);
  border-bottom:1px solid var(--line);
  padding:40px 0 48px;
}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
  font-size:13.5px;
  color:var(--muted);
  margin-bottom:20px;
}
.breadcrumb a{color:var(--muted);transition:color .22s ease;}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{opacity:.55;}
.page-hero h1{
  font-size:clamp(28px,3.6vw,44px);
  line-height:1.3;
  margin:0 0 16px;
  max-width:900px;
  letter-spacing:.01em;
}
.page-hero .hero-lead{
  max-width:760px;
  margin:0 0 24px;
  color:var(--muted);
  font-size:16px;
  line-height:1.85;
}
.chip-row{display:flex;gap:10px;flex-wrap:wrap;}
.chip-row .tag{background:var(--surface);}
/* ---------- 筛选条 ---------- */
.filter-bar{
  background:var(--surface);
  border-bottom:1px solid var(--line);
}
.filter-scroll{
  display:flex;
  gap:10px;
  overflow-x:auto;
  padding:14px 0;
  scrollbar-width:none;
}
.filter-scroll::-webkit-scrollbar{display:none;}
.filter-chip{
  flex:none;
  display:inline-flex;
  align-items:center;
  height:34px;
  padding:0 16px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--muted);
  font-size:14px;
  white-space:nowrap;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease,transform .22s ease;
}
.filter-chip:hover{background:var(--brand-soft);color:var(--brand-deep);border-color:#E3C7BE;}
.filter-chip.active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600;}
.filter-chip.active:hover{background:var(--brand-deep);border-color:var(--brand-deep);color:#fff;}
/* ---------- 通道行列表 ---------- */
.channel-list{
  border-top:1px solid var(--line);
  background:var(--surface);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
}
.channel-row{
  display:grid;
  grid-template-columns:52px minmax(0,1fr) auto;
  gap:22px;
  align-items:center;
  padding:22px 26px;
  border-bottom:1px solid var(--line);
  transition:background-color .22s ease;
}
.channel-row:last-child{border-bottom:0;}
.channel-row:hover{background:var(--bg-alt);}
.row-index{
  width:44px;height:44px;
  border-radius:12px;
  background:var(--brand-soft);
  color:var(--brand-deep);
  font-family:var(--font-serif);
  font-size:16px;
  font-weight:700;
  display:flex;
  align-items:center;
  justify-content:center;
}
.row-main{min-width:0;}
.row-main h3{margin:0 0 4px;font-size:17.5px;line-height:1.5;}
.row-main p{
  margin:0;
  color:var(--muted);
  font-size:14.5px;
  line-height:1.75;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.row-meta{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
  justify-content:flex-end;
}
.row-meta .badge{white-space:nowrap;}
/* ---------- 使用要点 ---------- */
.points-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.point-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px 24px;
  box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.point-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:#DFD4C2;}
.point-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;height:34px;
  border-radius:50%;
  border:1px solid var(--brand);
  color:var(--brand);
  font-family:var(--font-serif);
  font-size:15px;
  font-weight:700;
  margin-bottom:16px;
}
.point-card h3{margin:0 0 8px;font-size:18px;}
.point-card p{margin:0;color:var(--muted);font-size:15px;line-height:1.8;}
/* ---------- 专题图文 ---------- */
.topic-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.topic-item{
  display:grid;
  grid-template-columns:190px minmax(0,1fr);
  gap:22px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:18px;
  box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease;
}
.topic-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);}
.topic-figure{
  margin:0;
  border-radius:12px;
  overflow:hidden;
  background:var(--bg-alt);
  border:1px solid rgba(36,31,28,.06);
}
.topic-figure img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .4s ease;}
.topic-item:hover .topic-figure img{transform:scale(1.04);}
.topic-body h3{margin:0 0 8px;font-size:17.5px;line-height:1.5;}
.topic-body p{margin:0 0 12px;color:var(--muted);font-size:14.5px;line-height:1.78;}
/* ---------- 下载 ---------- */
.dl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:8px;}
.dl-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px 24px;
  box-shadow:var(--shadow-sm);
  display:flex;
  flex-direction:column;
  gap:8px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.dl-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:#DFD4C2;}
.dl-card h3{margin:0;font-size:18px;}
.dl-card p{margin:0 0 14px;color:var(--muted);font-size:14.5px;line-height:1.78;flex:1;}
.dl-mark{
  width:40px;height:40px;
  border-radius:10px;
  background:var(--accent-soft);
  color:#3F6355;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:13px;
  font-weight:700;
  letter-spacing:.02em;
  margin-bottom:6px;
}
/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px;
  box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:#DFD4C2;}
.news-card h3{margin:0;font-size:17px;line-height:1.55;}
.news-card h3 a{transition:color .22s ease;}
.news-card h3 a:hover{color:var(--brand);}
.news-excerpt{
  margin:0;
  color:var(--muted);
  font-size:14.5px;
  line-height:1.78;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-top:12px;
  border-top:1px dashed var(--line);
  font-size:12.5px;
  color:var(--muted);
}
.empty-state{
  text-align:center;
  padding:56px 24px;
  border:1px dashed var(--line);
  border-radius:var(--radius);
  background:var(--surface);
  color:var(--muted);
}
.empty-state .empty-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:52px;height:52px;
  border-radius:50%;
  background:var(--brand-soft);
  color:var(--brand-deep);
  font-family:var(--font-serif);
  font-size:20px;
  margin-bottom:14px;
}
/* ---------- FAQ ---------- */
.faq-list{max-width:880px;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 4px;
  background:none;
  border:0;
  cursor:pointer;
  text-align:left;
  font-size:17px;
  font-weight:700;
  font-family:var(--font-sans);
  color:var(--ink);
  transition:color .22s ease;
}
.faq-q:hover{color:var(--brand);}
.faq-icon{
  flex:none;
  position:relative;
  width:20px;height:20px;
  border-radius:50%;
  border:1px solid var(--line);
  transition:transform .24s ease,border-color .24s ease,background-color .24s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  top:50%;left:50%;
  background:var(--brand);
  transform:translate(-50%,-50%);
  border-radius:2px;
}
.faq-icon::before{width:9px;height:1.6px;}
.faq-icon::after{width:1.6px;height:9px;transition:opacity .24s ease;}
.faq-item.open .faq-icon{transform:rotate(180deg);background:var(--brand-soft);border-color:#E3C7BE;}
.faq-item.open .faq-icon::after{opacity:0;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .24s ease;
}
.faq-a p{
  margin:0;
  padding:0 4px 22px;
  color:var(--muted);
  font-size:15px;
  line-height:1.85;
  max-width:760px;
}
/* ---------- 返回引导条 ---------- */
.guide-bar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
  background:var(--bg-alt);
  border:1px solid var(--line);
  border-radius:20px;
  padding:32px 36px;
}
.guide-bar h2{margin:0;font-size:clamp(20px,2.2vw,26px);line-height:1.4;}
.guide-bar p{margin:6px 0 0;color:var(--muted);font-size:15px;}
.guide-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap;}
/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);
  color:var(--on-dark);
  padding:64px 0 32px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:44px;
}
.brand-footer .brand-name{color:var(--on-dark);}
.brand-footer .brand-sub{color:rgba(243,237,228,.6);}
.footer-desc{
  margin:18px 0 0;
  font-size:14.5px;
  line-height:1.85;
  color:rgba(243,237,228,.66);
  max-width:340px;
}
.footer-col h4{
  margin:0 0 16px;
  font-size:14px;
  font-weight:700;
  color:var(--on-dark);
  font-family:var(--font-sans);
  letter-spacing:.04em;
}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;}
.footer-col a{
  font-size:15px;
  color:rgba(243,237,228,.72);
  transition:color .22s ease;
}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.footer-bottom{
  border-top:1px solid rgba(243,237,228,.16);
  padding-top:22px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
}
.footer-bottom p{margin:0;font-size:13px;color:rgba(243,237,228,.6);}
/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  :root{--section-pad:72px;--header-h:70px;}
  .container{padding:0 20px;}
  .topic-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991px){
  :root{--section-pad:64px;--header-h:68px;}
  body{font-size:16px;}
  .nav-toggle{display:inline-flex;}
  .header-actions .text-link,.header-actions .btn-nav{display:none;}
  .main-nav{
    position:fixed;
    left:0;right:0;top:var(--header-h);bottom:0;
    display:flex;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:16px 20px 0;
    background:var(--bg);
    border-top:1px solid var(--line);
    transform:translateX(100%);
    transition:transform .28s ease;
    overflow-y:auto;
    z-index:70;
  }
  .main-nav.is-open{transform:translateX(0);}
  .nav-link{padding:15px 4px;font-size:17px;border-bottom:1px solid var(--line);}
  .nav-link::after{display:none;}
  .main-nav .drawer-cta{
    display:block;
    position:sticky;
    bottom:0;
    margin-top:auto;
    padding:16px 0 26px;
    background:var(--bg);
  }
  .main-nav .drawer-cta .btn{width:100%;height:50px;font-size:16px;}
  .points-grid{grid-template-columns:1fr;}
  .dl-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .topic-item{grid-template-columns:160px minmax(0,1fr);}
  .guide-bar{padding:26px;}
}
@media (max-width:767px){
  :root{--section-pad:52px;}
  .section-head{margin-bottom:32px;gap:14px;}
  .page-hero{padding:30px 0 36px;}
  .page-hero h1{font-size:26px;}
  .page-hero .hero-lead{font-size:15.5px;}
  .channel-row{grid-template-columns:44px minmax(0,1fr);gap:16px;padding:18px;}
  .row-meta{grid-column:1 / -1;justify-content:flex-start;padding-left:60px;}
  .row-index{width:40px;height:40px;font-size:15px;}
  .topic-item{grid-template-columns:1fr;gap:16px;}
  .topic-figure img{aspect-ratio:16/9;}
  .news-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .guide-bar{padding:24px;}
  .guide-actions{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:479px){
  .container{padding:0 16px;}
  .btn{width:100%;}
  .btn-text,.tag,.filter-chip{width:auto;}
  .chip-row .tag{height:30px;font-size:13px;}
  .row-meta{padding-left:0;}
  .guide-actions{flex-direction:column;align-items:stretch;gap:12px;}
  .guide-actions .btn-text{justify-content:center;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}