/* roulang page: index */
:root{
  --ink:#12211C;
  --brand:#0E4F3F;
  --brand-600:#14654F;
  --accent:#D9822B;
  --accent-deep:#C0701F;
  --accent-soft:#F6E3CD;
  --bg:#FAF8F3;
  --surface:#FFFFFF;
  --line:#E4DFD3;
  --muted:#6B7A72;
  --dark:#0C2B24;
  --danger:#B6463C;
  --ok:#2F8F5B;
  --radius-card:14px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(18,33,28,.06);
  --shadow-2:0 10px 26px rgba(18,33,28,.10);
  --bs-body-bg:#FAF8F3;
  --bs-body-color:#1E2B25;
  --bs-border-color:#E4DFD3;
  --bs-primary:#0E4F3F;
  --bs-link-color:#0E4F3F;
  --bs-link-hover-color:#14654F;
  --bs-body-font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --bs-border-radius:10px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  background:var(--bg);
  color:#1E2B25;
  font-size:16px;
  line-height:1.8;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-600);}
p{margin:0 0 16px;max-width:46em;}
h1,h2,h3,h4{margin:0 0 16px;color:var(--ink);font-weight:600;letter-spacing:-0.01em;}
h1{font-size:44px;line-height:1.25;}
h2{font-size:32px;line-height:1.35;}
h3{font-size:20px;line-height:1.5;}
ul,ol{margin:0 0 16px;padding-left:1.2em;}
li{margin-bottom:8px;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;}
.num{font-variant-numeric:tabular-nums;font-weight:600;letter-spacing:-0.01em;}

/* ---------- 导航 ---------- */
.site-header{
  position:relative;
  z-index:1030;
  padding:16px 24px 0;
  transition:padding .25s ease;
}
.site-header.scrolled{
  position:sticky;
  top:12px;
  padding-top:0;
}
.nav-shell{max-width:1200px;margin:0 auto;}
.site-navbar{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:18px;
  box-shadow:0 6px 20px rgba(18,33,28,.07);
  padding:0 14px;
  min-height:64px;
  transition:box-shadow .25s ease;
}
.site-header.scrolled .site-navbar{box-shadow:0 12px 30px rgba(18,33,28,.14);}
.nav-inner{
  display:flex;
  align-items:center;
  gap:12px;
  width:100%;
  min-height:64px;
  padding:0;
}
.brand{display:inline-flex;align-items:center;gap:10px;padding:0;}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  background:var(--brand);
  display:flex;align-items:center;justify-content:center;
}
.brand-mark svg{display:block;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:16px;font-weight:600;color:var(--ink);letter-spacing:0;}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.08em;}
.site-menu{gap:2px;align-items:center;}
.site-menu .nav-link{
  position:relative;
  color:#2A3A33;
  font-size:15px;
  padding:10px 12px;
  border-radius:8px;
  white-space:nowrap;
}
.site-menu .nav-link::after{
  content:"";
  position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:var(--accent);
  width:0;transition:width .22s ease;
}
.site-menu .nav-link:hover{color:var(--brand);}
.site-menu .nav-link:hover::after{width:calc(100% - 24px);}
.site-menu .nav-link.active{color:var(--brand);font-weight:600;}
.site-menu .nav-link.active::before{
  content:"";
  position:absolute;left:3px;top:50%;transform:translateY(-50%);
  width:4px;height:4px;border-radius:50%;background:var(--accent);
}
.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;
  background:var(--accent);color:#1B1206;
  border:1px solid var(--accent);
  border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;
  transition:background .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-accent:hover{background:var(--accent-deep);border-color:var(--accent-deep);color:#1B1206;transform:translateY(-1px);}
.btn-accent:active{transform:translateY(0);}
.btn-accent:focus-visible,.btn-ghost:focus-visible,.dl-btn:focus-visible,.site-menu .nav-link:focus-visible{
  outline:2px solid var(--accent);outline-offset:2px;
}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;
  background:transparent;color:var(--brand);
  border:1px solid var(--brand);
  border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.btn-ghost:hover{background:rgba(14,79,63,.08);color:var(--brand-600);transform:translateY(-1px);}
.nav-download{min-width:88px;}
.navbar-toggler{
  width:44px;height:44px;padding:0;border:1px solid var(--line);border-radius:10px;
  display:flex;align-items:center;justify-content:center;background:var(--surface);
}
.navbar-toggler:focus{box-shadow:none;outline:2px solid var(--accent);outline-offset:2px;}
.toggler-bars{display:block;width:20px;height:14px;position:relative;}
.toggler-bars span{position:absolute;left:0;width:20px;height:2px;background:var(--brand);border-radius:2px;transition:transform .2s ease;}
.toggler-bars span:nth-child(1){top:0;}
.toggler-bars span:nth-child(2){top:6px;}
.toggler-bars span:nth-child(3){top:12px;}
@media (max-width:991.98px){
  .site-header{padding:12px 12px 0;}
  .site-navbar{min-height:56px;border-radius:16px;}
  .nav-inner{min-height:56px;}
  .site-navbar .navbar-collapse{
    margin-top:10px;
    border-top:1px solid var(--line);
    padding:8px 0 14px;
  }
  .site-menu{gap:0;align-items:stretch;}
  .site-menu .nav-link{
    display:flex;align-items:center;justify-content:space-between;
    min-height:48px;padding:8px 6px;
    border-bottom:1px solid var(--line);
  }
  .site-menu .nav-link::after{display:none;}
  .site-menu .nav-link.active::before{position:static;transform:none;margin-right:8px;flex:0 0 4px;}
  .nav-download{margin-top:12px;width:100%;}
}

/* ---------- 首屏 ---------- */
.hero{
  position:relative;
  padding:64px 0 76px;
  background:
    radial-gradient(rgba(14,79,63,.05) 1px, transparent 1px) right top / 10px 10px no-repeat,
    var(--bg);
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;right:-40px;top:20px;width:420px;height:420px;
  background-image:radial-gradient(rgba(14,79,63,.09) 1px, transparent 1px);
  background-size:12px 12px;
  opacity:.5;
  pointer-events:none;
}
.hero-inner{position:relative;z-index:1;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;margin-bottom:20px;
  background:var(--accent-soft);
  color:#7A4A12;
  border-radius:999px;
  font-size:13px;font-weight:600;letter-spacing:.02em;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);}
.hero h1{margin-bottom:18px;}
.hero h1 em{font-style:normal;color:var(--brand);}
.hero-sub{font-size:17px;color:#3B4A43;max-width:34em;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:18px;}
.hero-note{font-size:13px;color:var(--muted);max-width:36em;line-height:1.7;}
.hero-panel{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:18px;
  box-shadow:var(--shadow-1);
  padding:22px;
  position:relative;
  overflow:hidden;
}
.panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;}
.panel-title{font-size:14px;font-weight:600;color:var(--brand);letter-spacing:.02em;}
.panel-spark{opacity:.9;}
.panel-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:12px;overflow:hidden;}
.panel-cell{background:var(--surface);padding:14px 14px 16px;min-width:0;}
.panel-label{font-size:12px;color:var(--muted);margin-bottom:6px;letter-spacing:.02em;}
.panel-value{font-size:19px;color:var(--ink);font-variant-numeric:tabular-nums;font-weight:600;letter-spacing:-0.01em;line-height:1.35;}
.panel-note{font-size:12px;color:var(--muted);line-height:1.6;margin-top:6px;}

/* ---------- 通用 section ---------- */
.section{padding:76px 0;}
.section-alt{background:var(--surface);}
.section-warm{background:#FBF3E9;}
.section-dark{background:var(--dark);color:#EAF1EC;}
.section-dark h2,.section-dark h3{color:#F4F8F5;}
.section-dark p{color:#C7D8CF;}
.section-head{max-width:52em;margin-bottom:36px;}
.section-head p{margin-bottom:0;color:#455953;}
.section-kicker{
  display:inline-block;font-size:13px;font-weight:600;color:var(--accent);
  letter-spacing:.12em;margin-bottom:10px;
}
.section-dark .section-kicker{color:var(--accent);}

/* ---------- 下载区 ---------- */
.dl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.dl-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:16px;
  padding:24px;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  min-width:0;
}
.dl-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(14,79,63,.35);}
.dl-icon{
  width:48px;height:48px;border-radius:12px;
  background:rgba(14,79,63,.08);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:14px;
}
.dl-name{font-size:18px;font-weight:600;margin-bottom:6px;color:var(--ink);}
.dl-desc{font-size:14px;color:var(--muted);line-height:1.7;margin-bottom:18px;min-height:48px;}
.dl-btn{
  display:flex;align-items:center;justify-content:center;gap:8px;
  width:100%;min-height:44px;padding:10px 16px;
  background:var(--brand);color:#fff;border:1px solid var(--brand);
  border-radius:var(--radius-btn);font-size:15px;font-weight:600;
  transition:background .18s ease,transform .18s ease;
}
.dl-btn:hover{background:var(--brand-600);border-color:var(--brand-600);color:#fff;transform:translateY(-1px);}
.dl-meta{font-size:12px;color:var(--muted);margin-top:10px;}

/* ---------- 指标看板 ---------- */
.metric-grid{
  display:grid;grid-template-columns:repeat(5,minmax(0,1fr));
  border:1px solid rgba(255,255,255,.12);
  border-radius:14px;overflow:hidden;background:rgba(255,255,255,.04);
}
.metric-cell{padding:24px 20px;border-right:1px solid rgba(255,255,255,.12);min-width:0;}
.metric-cell:last-child{border-right:none;}
.metric-value{font-size:22px;font-weight:600;color:#F6E3CD;font-variant-numeric:tabular-nums;letter-spacing:-0.01em;margin-bottom:8px;line-height:1.35;}
.metric-label{font-size:15px;color:#EAF1EC;font-weight:600;margin-bottom:6px;}
.metric-note{font-size:12.5px;color:#9FB6AB;line-height:1.65;}

/* ---------- 服务矩阵 ---------- */
.matrix-xl{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.matrix-sm{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.matrix-card{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px;
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  min-width:0;
  display:flex;flex-direction:column;
}
.matrix-card:hover{border-color:rgba(14,79,63,.35);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.matrix-num{font-size:13px;font-weight:600;color:var(--accent);letter-spacing:.14em;margin-bottom:10px;font-variant-numeric:tabular-nums;transition:color .2s ease;}
.matrix-card:hover .matrix-num{color:var(--brand);}
.matrix-title{font-size:18px;font-weight:600;margin-bottom:10px;color:var(--ink);}
.matrix-desc{font-size:14.5px;color:#4E6058;line-height:1.75;margin-bottom:16px;}
.matrix-link{
  margin-top:auto;display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand);
}
.matrix-link .arrow{transition:transform .2s ease;}
.matrix-card:hover .matrix-link .arrow{transform:translateX(4px);}

/* ---------- 场景人群 ---------- */
.scene-tags{display:flex;flex-direction:column;gap:10px;}
.scene-tag{
  display:block;padding:14px 16px;
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  font-size:15px;color:#2A3A33;transition:border-color .18s ease,background .18s ease;
}
.scene-tag:hover{border-color:rgba(14,79,63,.35);background:#FCFBF7;}
.scene-tag .st-num{font-size:12px;color:var(--accent);font-weight:600;margin-right:8px;font-variant-numeric:tabular-nums;}
.scene-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:28px;}
.scene-points{list-style:none;padding:0;margin:0;}
.scene-points li{position:relative;padding-left:20px;font-size:15px;color:#41544C;margin-bottom:10px;}
.scene-points li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:2px;background:var(--accent);}

/* ---------- 对比表 ---------- */
.compare-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-card);background:var(--surface);}
.compare-table{width:100%;border-collapse:collapse;min-width:640px;margin:0;}
.compare-table th,.compare-table td{padding:0 18px;height:56px;text-align:left;font-size:15px;border-bottom:1px solid var(--line);vertical-align:middle;}
.compare-table thead th{background:var(--brand);color:#fff;font-weight:600;height:52px;border-bottom:none;}
.compare-table tbody tr:nth-child(even){background:var(--bg);}
.compare-table tbody tr:last-child td{border-bottom:none;}
.compare-table td:first-child{font-weight:600;color:var(--ink);width:22%;}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:20px;padding-top:12px;}
.timeline::before{content:"";position:absolute;left:0;right:0;top:22px;height:1px;background:var(--line);}
.tl-item{position:relative;padding-top:34px;min-width:0;}
.tl-dot{position:absolute;top:16px;left:0;width:13px;height:13px;border-radius:50%;background:var(--surface);border:2px solid var(--brand);}
.tl-item:first-child .tl-dot{background:var(--accent);border-color:var(--accent);}
.tl-name{font-size:16px;font-weight:600;color:var(--ink);margin-bottom:8px;}
.tl-desc{font-size:14px;color:var(--muted);line-height:1.7;}

/* ---------- 工具条 ---------- */
.tool-list{border-top:1px solid var(--line);}
.tool-row{
  display:flex;align-items:center;gap:18px;
  padding:22px 4px;border-bottom:1px solid var(--line);
  transition:background .18s ease;
}
.tool-row:hover{background:rgba(14,79,63,.03);}
.tool-icon{
  flex:0 0 48px;width:48px;height:48px;border-radius:12px;
  background:rgba(14,79,63,.08);display:flex;align-items:center;justify-content:center;
}
.tool-main{flex:1 1 auto;min-width:0;}
.tool-title{font-size:17px;font-weight:600;color:var(--ink);margin-bottom:4px;}
.tool-desc{font-size:14px;color:var(--muted);line-height:1.7;}
.tool-tags{display:flex;flex-wrap:wrap;gap:8px;flex:0 0 auto;}
.tag{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:999px;
  background:rgba(14,79,63,.07);color:var(--brand);
  font-size:12.5px;font-weight:600;white-space:nowrap;
}

/* ---------- 风控 ---------- */
.risk-items{display:grid;gap:14px;}
.risk-item{
  background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--danger);
  border-radius:10px;padding:16px 18px;
}
.risk-item strong{display:block;font-size:15.5px;color:var(--ink);margin-bottom:4px;}
.risk-item span{font-size:14px;color:#4E6058;line-height:1.7;}

/* ---------- 资讯 ---------- */
.news-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.news-row{
  display:flex;gap:16px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:18px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  min-width:0;
}
.news-row:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(14,79,63,.35);}
.news-thumb{
  flex:0 0 116px;width:116px;aspect-ratio:16/9;border-radius:10px;
  background:linear-gradient(135deg,rgba(14,79,63,.12),rgba(217,130,43,.16));
  display:flex;align-items:center;justify-content:center;overflow:hidden;
}
.news-body{min-width:0;flex:1 1 auto;}
.news-title{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;margin-bottom:8px;
}
.news-title a{color:var(--ink);}
.news-title a:hover{color:var(--brand);}
.news-summary{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  font-size:13.5px;color:var(--muted);line-height:1.7;margin-bottom:10px;
}
.news-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:12.5px;color:var(--muted);}
.badge-pill{
  display:inline-flex;align-items:center;
  padding:3px 10px;border-radius:999px;
  background:var(--accent-soft);color:#7A4A12;
  font-size:12px;font-weight:600;
}
.empty-card{
  grid-column:1/-1;
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius-card);
  padding:36px 24px;text-align:center;color:var(--muted);font-size:15px;
}
.news-more{margin-top:28px;}

/* ---------- 专题 ---------- */
.topic-main{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;
}
.topic-cover{
  aspect-ratio:4/3;border-radius:12px;
  background:linear-gradient(160deg,rgba(14,79,63,.14),rgba(246,227,205,.6));
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.topic-catalog{list-style:none;padding:0;margin:14px 0 0;}
.topic-catalog li{font-size:14px;color:#4E6058;padding-left:16px;position:relative;margin-bottom:8px;}
.topic-catalog li::before{content:"";position:absolute;left:0;top:12px;width:6px;height:1px;background:var(--accent);}
.topic-list{list-style:none;padding:0;margin:0;border-top:1px solid var(--line);}
.topic-list li{border-bottom:1px solid var(--line);padding:18px 0;display:flex;gap:14px;align-items:flex-start;}
.topic-list .idx{font-size:13px;font-weight:600;color:var(--accent);font-variant-numeric:tabular-nums;padding-top:2px;}
.topic-list h3{font-size:16px;margin-bottom:4px;}
.topic-list p{font-size:13.5px;color:var(--muted);margin:0;line-height:1.7;}

/* ---------- 保障 ---------- */
.guarantee-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));}
.guarantee-item{padding:8px 22px;border-right:1px solid var(--line);min-width:0;}
.guarantee-item:last-child{border-right:none;}
.guarantee-item .g-icon{margin-bottom:12px;}
.guarantee-item h3{font-size:16.5px;margin-bottom:8px;}
.guarantee-item p{font-size:14px;color:var(--muted);line-height:1.7;margin:0;}

/* ---------- 快速解答 ---------- */
.quick-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.quick-card{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;transition:border-color .18s ease,transform .18s ease;
}
.quick-card:hover{border-color:rgba(14,79,63,.35);transform:translateY(-2px);}
.quick-card h3{font-size:17.5px;margin-bottom:8px;}
.quick-card p{font-size:14.5px;color:#4E6058;line-height:1.75;margin:0;}

/* ---------- 术语 ---------- */
.term-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 40px;margin:0;}
.term-item{padding:16px 0;border-bottom:1px dashed var(--line);min-width:0;}
.term-item dt{font-size:16px;font-weight:600;color:var(--ink);margin-bottom:6px;}
.term-item dd{margin:0;font-size:14px;color:var(--muted);line-height:1.75;}

/* ---------- FAQ ---------- */
.faq-accordion .accordion-item{background:transparent;border:none;border-bottom:1px solid var(--line);}
.faq-accordion .accordion-button{
  background:transparent;color:var(--ink);font-size:16px;font-weight:600;
  padding:20px 44px 20px 0;box-shadow:none;line-height:1.6;
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--brand);background:transparent;}
.faq-accordion .accordion-button::after{
  content:"";width:12px;height:12px;border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(45deg);transition:transform .2s ease;background:none;position:absolute;right:8px;top:28px;
}
.faq-accordion .accordion-button.collapsed::after{transform:rotate(-45deg);}
.faq-accordion .accordion-body{font-size:14.5px;color:#4E6058;line-height:1.8;padding:0 44px 20px 0;}
.faq-accordion .accordion-button:focus{box-shadow:none;outline:2px solid var(--accent);outline-offset:2px;}

/* ---------- 表单 ---------- */
.form-card{
  background:var(--surface);border:1px solid var(--line);border-radius:18px;
  padding:28px;box-shadow:var(--shadow-1);
}
.form-card label{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:6px;display:block;}
.form-card .form-control,.form-card .form-select{
  border:1px solid var(--line);border-radius:10px;padding:11px 14px;font-size:15px;
  background:#FDFCF9;color:#1E2B25;min-height:44px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.form-card .form-control:focus,.form-card .form-select:focus{
  border-color:var(--brand);box-shadow:0 0 0 2px rgba(217,130,43,.35);outline:none;background:#fff;
}
.form-card .form-control::placeholder{color:#9AA8A0;}
.form-hint{font-size:12.5px;color:var(--muted);margin-top:10px;}
.form-note{border-radius:12px;background:var(--accent-soft);padding:14px 16px;font-size:13.5px;color:#7A4A12;line-height:1.7;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg);border-top:1px solid var(--line);padding:56px 0 0;}
.footer-col h3{font-size:15px;font-weight:600;color:var(--ink);margin-bottom:14px;}
.footer-col p{font-size:13.5px;color:var(--muted);line-height:1.8;max-width:30em;}
.footer-links{list-style:none;padding:0;margin:0;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14px;color:#3B4A43;}
.footer-links a:hover{color:var(--brand);}
.footer-dl{display:flex;flex-direction:column;gap:8px;}
.footer-dl a{
  display:inline-flex;align-items:center;justify-content:space-between;gap:10px;
  padding:9px 12px;border:1px solid var(--line);border-radius:10px;
  font-size:13.5px;color:#2A3A33;background:var(--surface);
  transition:border-color .18s ease,color .18s ease;
}
.footer-dl a:hover{border-color:rgba(14,79,63,.35);color:var(--brand);}
.footer-risk{font-size:12.5px;color:var(--muted);line-height:1.75;margin-top:12px;}
.footer-bottom{background:var(--dark);color:#B6C9C0;margin-top:48px;}
.footer-bottom-inner{padding:20px 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;font-size:12.5px;}
.footer-bottom-inner a{color:#D9E5DF;}
.footer-bottom-inner a:hover{color:#fff;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  h1{font-size:38px;}
  h2{font-size:28px;}
  .metric-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
  .metric-cell:nth-child(3){border-right:none;}
  .metric-cell:nth-child(n+4){border-top:1px solid rgba(255,255,255,.12);}
}
@media (max-width:991.98px){
  .section{padding:60px 0;}
  .hero{padding:44px 0 60px;}
  h1{font-size:32px;}
  h2{font-size:25px;}
  .dl-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .dl-card:last-child{grid-column:1/-1;}
  .matrix-xl,.matrix-sm{grid-template-columns:repeat(2,minmax(0,1fr));}
  .timeline{grid-template-columns:1fr;gap:0;padding-top:0;padding-left:22px;}
  .timeline::before{left:6px;right:auto;top:6px;bottom:6px;width:1px;height:auto;}
  .tl-item{padding:0 0 24px 12px;}
  .tl-dot{top:6px;left:-22px;}
  .guarantee-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 0;}
  .guarantee-item:nth-child(2){border-right:none;}
  .guarantee-item:nth-child(n+3){border-top:1px solid var(--line);padding-top:24px;}
  .news-list{grid-template-columns:1fr;}
  .form-card{padding:22px;margin-top:24px;}
  .tool-row{flex-wrap:wrap;}
  .tool-tags{width:100%;}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px;}
  .section{padding:44px 0;}
  .hero{padding:36px 0 48px;}
  h1{font-size:28px;}
  h2{font-size:23px;}
  body{font-size:15.5px;}
  .dl-grid{grid-template-columns:1fr;}
  .dl-card:last-child{grid-column:auto;}
  .matrix-xl,.matrix-sm{grid-template-columns:1fr;}
  .panel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .metric-cell{border-right:none;border-bottom:1px solid rgba(255,255,255,.12);padding:18px 16px;}
  .metric-cell:nth-child(odd){border-right:1px solid rgba(255,255,255,.12);}
  .quick-grid{grid-template-columns:1fr;}
  .term-list{grid-template-columns:1fr;}
  .guarantee-grid{grid-template-columns:1fr;gap:0;}
  .guarantee-item{border-right:none;border-top:1px solid var(--line);padding:20px 0;}
  .guarantee-item:first-child{border-top:none;}
  .news-row{flex-direction:column;}
  .news-thumb{width:100%;flex:0 0 auto;aspect-ratio:16/9;}
  .compare-wrap{border:none;background:transparent;}
  .compare-table{min-width:0;display:block;}
  .compare-table thead{display:none;}
  .compare-table tbody,.compare-table tr,.compare-table td{display:block;width:100%;}
  .compare-table tr{background:var(--surface);border:1px solid var(--line);border-radius:12px;margin-bottom:14px;padding:6px 0;overflow:hidden;}
  .compare-table td{height:auto;padding:10px 16px;border-bottom:1px solid var(--line);}
  .compare-table td:last-child{border-bottom:none;}
  .compare-table td::before{
    content:attr(data-label);display:block;font-size:12.5px;color:var(--muted);
    font-weight:600;margin-bottom:2px;
  }
  .compare-table td:first-child{background:var(--bg);font-weight:600;}
  .footer-bottom-inner{flex-direction:column;align-items:flex-start;}
}
@media (max-width:519.98px){
  .hero-actions .btn-accent,.hero-actions .btn-ghost{width:100%;}
  .dl-btn{width:100%;}
  .panel-value{font-size:17px;}
  .brand-name{font-size:14.5px;}
  .brand-sub{font-size:10px;}
}

/* roulang page: category1 */
:root{
  --ink:#12211C;
  --brand:#0E4F3F;
  --brand-600:#14654F;
  --accent:#D9822B;
  --accent-deep:#C0701F;
  --accent-soft:#F6E3CD;
  --bg:#FAF8F3;
  --surface:#FFFFFF;
  --line:#E4DFD3;
  --muted:#6B7A72;
  --dark:#0C2B24;
  --danger:#B6463C;
  --ok:#2F8F5B;
  --radius-card:14px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(18,33,28,.06);
  --shadow-2:0 10px 26px rgba(18,33,28,.10);
  --bs-body-bg:#FAF8F3;
  --bs-body-color:#1E2B25;
  --bs-border-color:#E4DFD3;
  --bs-primary:#0E4F3F;
  --bs-link-color:#0E4F3F;
  --bs-link-hover-color:#14654F;
  --bs-body-font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --bs-border-radius:10px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  background:var(--bg);
  color:#1E2B25;
  font-size:16px;
  line-height:1.8;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-600);}
p{margin:0 0 14px;}
p:last-child{margin-bottom:0;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:600;letter-spacing:0;}
h1{font-size:44px;line-height:1.25;}
h2{font-size:32px;line-height:1.35;}
h3{font-size:20px;line-height:1.5;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;}
.num{font-variant-numeric:tabular-nums;font-weight:600;letter-spacing:-.01em;}
/* ---------- 导航 ---------- */
.site-header{
  position:relative;
  z-index:1030;
  padding:16px 24px 0;
  transition:padding .25s ease;
}
.site-header.scrolled{position:sticky;top:12px;padding-top:0;}
.nav-shell{max-width:1200px;margin:0 auto;}
.site-navbar{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:18px;
  box-shadow:0 6px 20px rgba(18,33,28,.07);
  padding:0 14px;
  min-height:64px;
  transition:box-shadow .25s ease;
}
.site-header.scrolled .site-navbar{box-shadow:0 12px 30px rgba(18,33,28,.14);}
.nav-inner{display:flex;align-items:center;gap:12px;width:100%;min-height:64px;padding:0;}
.brand{display:inline-flex;align-items:center;gap:10px;padding:0;}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  background:var(--brand);
  display:flex;align-items:center;justify-content:center;
}
.brand-mark svg{display:block;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:16px;font-weight:600;color:var(--ink);letter-spacing:0;}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.08em;}
.site-menu{gap:2px;align-items:center;}
.site-menu .nav-link{
  position:relative;
  color:#2A3A33;
  font-size:15px;
  padding:10px 12px;
  border-radius:8px;
  white-space:nowrap;
}
.site-menu .nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:var(--accent);width:0;transition:width .22s ease;
}
.site-menu .nav-link:hover{color:var(--brand);}
.site-menu .nav-link:hover::after{width:calc(100% - 24px);}
.site-menu .nav-link.active{color:var(--brand);font-weight:600;}
.site-menu .nav-link.active::before{
  content:"";position:absolute;left:3px;top:50%;transform:translateY(-50%);
  width:4px;height:4px;border-radius:50%;background:var(--accent);
}
.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;
  background:var(--accent);color:#1B1206;
  border:1px solid var(--accent);border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;
  transition:background .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-accent:hover{background:var(--accent-deep);border-color:var(--accent-deep);color:#1B1206;transform:translateY(-1px);}
.btn-accent:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;
  background:transparent;color:var(--brand);
  border:1px solid var(--brand);border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.btn-ghost:hover{background:rgba(14,79,63,.08);color:var(--brand-600);transform:translateY(-1px);}
.btn-accent:focus-visible,.btn-ghost:focus-visible,.dl-btn:focus-visible,.site-menu .nav-link:focus-visible,.filter-pill:focus-visible{
  outline:2px solid var(--accent);outline-offset:2px;
}
.nav-download{min-width:88px;}
.navbar-toggler{
  width:44px;height:44px;padding:0;border:1px solid var(--line);border-radius:10px;
  display:flex;align-items:center;justify-content:center;background:var(--surface);
}
.navbar-toggler:focus{box-shadow:none;outline:2px solid var(--accent);outline-offset:2px;}
.toggler-bars{display:flex;flex-direction:column;gap:4px;width:18px;}
.toggler-bars span{display:block;height:2px;border-radius:2px;background:var(--ink);}
/* ---------- 通用板块 ---------- */
.section{padding:76px 0;}
.section-white{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-bg{background:var(--bg);}
.section-warm{background:rgba(246,227,205,.28);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-dark{background:var(--dark);color:#EAF1EC;}
.section-dark h2,.section-dark h3{color:#F4F8F5;}
.section-head{margin-bottom:34px;max-width:52em;}
.section-head h2{margin-bottom:12px;}
.section-head p{color:#3B4A43;font-size:16px;max-width:46em;}
.section-dark .section-head p{color:#BFD2C9;}
.sec-label{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand);
  letter-spacing:.08em;margin-bottom:12px;
}
.sec-label::before{content:"";width:22px;height:2px;background:var(--accent);display:block;}
.section-dark .sec-label{color:#D9B98A;}
/* ---------- 分类头区 ---------- */
.page-head{
  position:relative;
  padding:44px 0 52px;
  background:
    radial-gradient(rgba(14,79,63,.07) 1px, transparent 1px) right top / 12px 12px no-repeat,
    linear-gradient(180deg, rgba(246,227,205,.38) 0%, rgba(250,248,243,0) 78%),
    var(--bg);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted);margin-bottom:22px;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:#B9B0A0;}
.crumb .cur{color:#3B4A43;font-weight:600;}
.head-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start;}
.page-head h1{
  padding-left:18px;
  border-left:4px solid var(--accent);
  margin-bottom:20px;
  max-width:22em;
}
.page-head .lead{font-size:17px;color:#3B4A43;max-width:40em;margin-bottom:14px;}
.head-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px;}
.tag{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:999px;
  background:var(--surface);border:1px solid var(--line);
  font-size:13px;color:#3B4A43;
}
.tag-accent{background:var(--accent-soft);border-color:rgba(217,130,43,.35);color:#7A4A12;font-weight:600;}
.head-aside{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);
}
.head-aside h2{font-size:17px;margin-bottom:14px;}
.head-aside ul{list-style:none;margin:0;padding:0;}
.head-aside li{
  display:flex;justify-content:space-between;gap:12px;
  padding:10px 0;border-bottom:1px dashed var(--line);font-size:14px;color:#3B4A43;
}
.head-aside li:last-child{border-bottom:0;}
.head-aside li .num{color:var(--brand);}
.head-aside .aside-note{font-size:13px;color:var(--muted);line-height:1.7;margin-top:14px;}
.head-back{display:inline-flex;align-items:center;gap:6px;font-size:14px;margin-top:18px;border-bottom:1px dashed currentColor;padding-bottom:2px;}
/* ---------- 筛选条 ---------- */
.filter-bar{
  background:var(--surface);
  border-bottom:1px solid var(--line);
  padding:16px 0;
}
.filter-scroll{display:flex;gap:10px;overflow-x:auto;padding-bottom:4px;scrollbar-width:thin;}
.filter-pill{
  flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  min-height:40px;padding:7px 18px;
  border-radius:999px;border:1px solid var(--line);
  background:var(--surface);color:#3B4A43;font-size:14px;font-weight:500;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.filter-pill:hover{background:rgba(14,79,63,.07);border-color:rgba(14,79,63,.3);color:var(--brand);}
.filter-pill.is-on{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600;}
/* ---------- 方案列表 ---------- */
.plan-list{border-top:1px solid var(--line);}
.plan-row{
  display:grid;grid-template-columns:64px minmax(0,1fr);
  gap:24px;padding:26px 0;border-bottom:1px solid var(--line);
  min-width:0;
}
.plan-row .idx{
  font-size:22px;color:var(--accent);line-height:1.2;
  font-variant-numeric:tabular-nums;font-weight:600;letter-spacing:-.01em;
}
.plan-row h3{margin-bottom:8px;font-size:19px;}
.plan-row p{font-size:15px;color:#4A5A52;max-width:46em;margin-bottom:12px;}
.plan-row .row-tags{display:flex;flex-wrap:wrap;gap:8px;}
.plan-row:hover .idx{color:var(--brand);}
.plan-row .idx{transition:color .18s ease;}
/* ---------- 知识框架 ---------- */
.know-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 48px;}
.know-item{
  position:relative;padding:18px 0 18px 20px;
  border-left:2px solid var(--accent);
  border-bottom:1px solid var(--line);
  min-width:0;
}
.know-item h3{font-size:17px;margin-bottom:6px;}
.know-item p{font-size:14px;color:#4A5A52;line-height:1.75;margin:0;}
/* ---------- 相关专题 ---------- */
.topic-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.topic-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-1);
  transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
  min-width:0;
}
.topic-card:hover{border-color:rgba(14,79,63,.35);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.topic-card h3{font-size:17px;margin-bottom:8px;}
.topic-card p{font-size:14px;color:#4A5A52;line-height:1.75;margin:0;}
.topic-card .t-no{font-size:13px;color:var(--accent);font-weight:600;letter-spacing:.08em;margin-bottom:6px;display:block;}
/* ---------- 迷你 FAQ ---------- */
.mini-faq .accordion-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  margin-bottom:12px;overflow:hidden;
}
.mini-faq .accordion-button{
  background:var(--surface);color:var(--ink);font-size:16px;font-weight:600;
  padding:18px 20px;box-shadow:none;border-radius:var(--radius-card);
}
.mini-faq .accordion-button:not(.collapsed){color:var(--brand);background:rgba(246,227,205,.3);}
.mini-faq .accordion-button:focus{box-shadow:none;outline:2px solid var(--accent);outline-offset:-2px;}
.mini-faq .accordion-button::after{
  width:16px;height:16px;background-size:16px;
}
.mini-faq .accordion-body{padding:0 20px 20px;font-size:15px;color:#4A5A52;line-height:1.85;}
/* ---------- 下载 banner ---------- */
.dl-banner{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  background:var(--surface);border:1px solid var(--line);border-radius:16px;
  padding:26px 30px;box-shadow:var(--shadow-1);
}
.dl-banner h2{font-size:22px;margin-bottom:6px;color:var(--ink);}
.dl-banner p{font-size:14px;color:var(--muted);margin:0;}
.dl-actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto;}
.dl-btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:10px 20px;min-width:118px;
  border:1px solid var(--brand);border-radius:var(--radius-btn);
  background:transparent;color:var(--brand);font-size:15px;font-weight:600;
  transition:background .18s ease,color .18s ease,transform .18s ease;
  white-space:nowrap;
}
.dl-btn:hover{background:var(--brand);color:#fff;transform:translateY(-1px);}
.dl-btn.is-primary{background:var(--accent);border-color:var(--accent);color:#1B1206;}
.dl-btn.is-primary:hover{background:var(--accent-deep);border-color:var(--accent-deep);color:#1B1206;}
/* ---------- 底部入口 ---------- */
.list-foot{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:center;
  gap:18px;padding-top:8px;
}
.foot-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;color:var(--brand);border-bottom:1px dashed currentColor;padding-bottom:2px;
}
.foot-link:hover{color:var(--brand-600);}
/* ---------- 页脚 ---------- */
.site-footer{
  background:#F3EFE6;
  border-top:1px solid var(--line);
  padding-top:56px;
  margin-top:0;
}
.footer-col h3{font-size:15px;font-weight:600;color:var(--ink);margin-bottom:14px;}
.footer-col p{font-size:14px;color:#4A5A52;line-height:1.8;}
.footer-links{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:9px;}
.footer-links a{font-size:14px;color:#3B4A43;}
.footer-links a:hover{color:var(--brand);}
.footer-dl{display:flex;flex-direction:column;gap:9px;}
.footer-dl a{
  font-size:14px;color:var(--brand);
  text-decoration:underline;text-decoration-style:dotted;text-underline-offset:4px;
}
.footer-dl a:hover{color:var(--brand-600);}
.footer-risk{font-size:13px;color:var(--muted);line-height:1.75;}
.footer-bottom{background:var(--dark);margin-top:48px;}
.footer-bottom-inner{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  padding:18px 0;font-size:13px;color:#B9CBC3;
}
/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .head-grid{grid-template-columns:minmax(0,1fr) 268px;gap:32px;}
}
@media (max-width:1024px){
  .section{padding:60px 0;}
  h1{font-size:36px;}
  h2{font-size:28px;}
  .head-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .know-grid{gap:0 32px;}
}
@media (max-width:991.98px){
  .site-navbar .navbar-collapse{margin-top:10px;border-top:1px solid var(--line);padding:8px 0 14px;}
  .site-menu{gap:0;align-items:stretch;}
  .site-menu .nav-link{display:flex;align-items:center;justify-content:flex-start;min-height:48px;padding:8px 6px;border-bottom:1px solid var(--line);white-space:normal;}
  .site-menu .nav-link::after{display:none;}
  .site-menu .nav-link.active::before{position:static;transform:none;margin-right:8px;flex:0 0 4px;}
  .nav-download{margin-top:12px;width:100%;}
  .dl-banner{flex-direction:column;align-items:flex-start;gap:20px;}
  .dl-actions{width:100%;}
}
@media (max-width:768px){
  .container{padding-left:18px;padding-right:18px;}
  .site-header{padding:12px 12px 0;}
  .site-navbar{min-height:56px;border-radius:16px;}
  .nav-inner{min-height:56px;}
  h1{font-size:30px;}
  h2{font-size:24px;}
  .section{padding:52px 0;}
  .page-head{padding:32px 0 40px;}
  .plan-row{grid-template-columns:46px minmax(0,1fr);gap:16px;padding:22px 0;}
  .plan-row .idx{font-size:18px;}
  .know-grid{grid-template-columns:minmax(0,1fr);}
  .topic-grid{grid-template-columns:minmax(0,1fr);}
  .footer-bottom-inner{flex-direction:column;}
}
@media (max-width:520px){
  h1{font-size:26px;padding-left:14px;border-left-width:3px;}
  h2{font-size:22px;}
  .section{padding:44px 0;}
  .section-head{margin-bottom:24px;}
  .plan-row{grid-template-columns:minmax(0,1fr);gap:8px;}
  .plan-row .idx{font-size:15px;color:var(--accent);}
  .dl-actions{flex-direction:column;}
  .dl-btn{width:100%;}
  .head-aside{padding:20px;}
  .btn-accent,.btn-ghost{width:100%;}
  .list-foot{flex-direction:column;align-items:stretch;text-align:center;}
}

/* roulang page: article */
:root{
  --ink:#12211C;
  --brand:#0E4F3F;
  --brand-600:#14654F;
  --accent:#D9822B;
  --accent-deep:#C0701F;
  --accent-soft:#F6E3CD;
  --bg:#FAF8F3;
  --surface:#FFFFFF;
  --line:#E4DFD3;
  --muted:#6B7A72;
  --dark:#0C2B24;
  --danger:#B6463C;
  --ok:#2F8F5B;
  --radius-card:14px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(18,33,28,.06);
  --shadow-2:0 10px 26px rgba(18,33,28,.10);
  --bs-body-bg:#FAF8F3;
  --bs-body-color:#1E2B25;
  --bs-border-color:#E4DFD3;
  --bs-primary:#0E4F3F;
  --bs-link-color:#0E4F3F;
  --bs-link-hover-color:#14654F;
  --bs-body-font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --bs-border-radius:10px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  background:var(--bg);
  color:#1E2B25;
  font-size:16px;
  line-height:1.8;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-600);}
p{max-width:46em;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;}
[id]{scroll-margin-top:96px;}

/* ---------- 导航 ---------- */
.site-header{position:relative;z-index:1030;padding:16px 24px 0;transition:padding .25s ease;}
.site-header.scrolled{position:sticky;top:12px;padding-top:0;}
.nav-shell{max-width:1200px;margin:0 auto;}
.site-navbar{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:18px;
  box-shadow:0 6px 20px rgba(18,33,28,.07);
  padding:0 14px;
  min-height:64px;
  transition:box-shadow .25s ease;
}
.site-header.scrolled .site-navbar{box-shadow:0 12px 30px rgba(18,33,28,.14);}
.nav-inner{display:flex;align-items:center;gap:12px;width:100%;min-height:64px;padding:0;}
.brand{display:inline-flex;align-items:center;gap:10px;padding:0;min-width:0;}
.brand:hover{color:inherit;}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  background:var(--brand);display:flex;align-items:center;justify-content:center;
}
.brand-mark svg{display:block;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;min-width:0;}
.brand-name{font-size:16px;font-weight:600;color:var(--ink);white-space:nowrap;}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.08em;}
.site-menu{gap:2px;align-items:center;}
.site-menu .nav-link{
  position:relative;color:#2A3A33;font-size:15px;padding:10px 12px;
  border-radius:8px;white-space:nowrap;
}
.site-menu .nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:var(--accent);width:0;transition:width .22s ease;
}
.site-menu .nav-link:hover{color:var(--brand);}
.site-menu .nav-link:hover::after{width:calc(100% - 24px);}
.site-menu .nav-link.active{color:var(--brand);font-weight:600;}
.site-menu .nav-link.active::before{
  content:"";position:absolute;left:3px;top:50%;transform:translateY(-50%);
  width:4px;height:4px;border-radius:50%;background:var(--accent);
}
.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;
  background:var(--accent);color:#1B1206;border:1px solid var(--accent);
  border-radius:var(--radius-btn);font-size:15px;font-weight:600;
  transition:background .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-accent:hover{background:var(--accent-deep);border-color:var(--accent-deep);color:#1B1206;transform:translateY(-1px);}
.btn-accent:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;
  background:transparent;color:var(--brand);border:1px solid var(--brand);
  border-radius:var(--radius-btn);font-size:15px;font-weight:600;
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.btn-ghost:hover{background:rgba(14,79,63,.08);color:var(--brand-600);transform:translateY(-1px);}
.btn-accent:focus-visible,.btn-ghost:focus-visible,.dl-btn:focus-visible,.site-menu .nav-link:focus-visible,.readmore-item:focus-visible,.nav-card:focus-visible{
  outline:2px solid var(--accent);outline-offset:2px;
}
.nav-download{min-width:88px;}
.navbar-toggler{
  width:44px;height:44px;padding:0;border:1px solid var(--line);border-radius:10px;
  display:flex;align-items:center;justify-content:center;background:var(--surface);
}
.navbar-toggler:focus{box-shadow:none;outline:2px solid var(--accent);outline-offset:2px;}
.toggler-bars{display:flex;flex-direction:column;gap:4px;width:18px;}
.toggler-bars span{display:block;height:2px;background:var(--brand);border-radius:2px;}
.site-navbar .navbar-collapse{flex-grow:1;}

/* ---------- 文章面包屑 ---------- */
.article-crumb{padding:26px 0 0;}
.crumb-list{
  display:flex;flex-wrap:wrap;align-items:center;gap:6px;
  list-style:none;margin:0;padding:0;font-size:14px;color:var(--muted);
}
.crumb-list li{min-width:0;}
.crumb-list li:not(:last-child)::after{content:"/";margin-left:6px;color:#C9C2B1;}
.crumb-list a{color:#3B4A43;}
.crumb-list a:hover{color:var(--brand);}
.crumb-list li:last-child{
  color:var(--muted);max-width:min(520px,100%);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;
  padding:22px 0 34px;
  background:
    radial-gradient(rgba(14,79,63,.05) 1px, transparent 1px) right top / 10px 10px no-repeat,
    var(--bg);
  border-bottom:1px solid var(--line);
}
.article-hero-inner{position:relative;z-index:1;max-width:860px;}
.meta-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;margin-bottom:16px;
  background:var(--accent-soft);color:#7A4A12;
  border-radius:999px;font-size:13px;font-weight:600;
}
.article-hero h1{
  font-size:38px;line-height:1.34;color:var(--ink);
  font-weight:700;letter-spacing:-.01em;margin:0 0 18px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:14px;color:var(--muted);}
.article-meta .meta-sep{width:1px;height:12px;background:var(--line);display:inline-block;}

/* ---------- 正文布局 ---------- */
.article-content-section{padding:44px 0 56px;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:40px;}
.article-main{min-width:0;}
.article-body{
  max-width:760px;font-size:17px;line-height:1.9;color:#1E2B25;
  overflow-wrap:break-word;
}
.article-body > *:first-child{margin-top:0;}
.article-body h2{
  font-size:24px;line-height:1.45;color:var(--ink);font-weight:700;
  margin:40px 0 16px;padding-left:14px;border-left:3px solid var(--accent);
}
.article-body h3{font-size:20px;line-height:1.5;color:var(--brand);margin:28px 0 12px;font-weight:600;}
.article-body h4{font-size:17px;color:var(--ink);margin:22px 0 10px;font-weight:600;}
.article-body p{margin:0 0 18px;max-width:none;}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px;}
.article-body li{margin-bottom:8px;}
.article-body li::marker{color:var(--brand);}
.article-body strong{color:var(--ink);font-weight:600;}
.article-body blockquote{
  margin:0 0 22px;padding:16px 20px;
  background:#F3F0E7;border-left:3px solid var(--brand);
  border-radius:0 10px 10px 0;color:#33443C;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body table{width:100%;border-collapse:collapse;margin:0 0 22px;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;}
.article-body th{background:var(--bg);font-weight:600;}
.article-body img{border-radius:12px;margin:0 0 12px;height:auto;width:100%;object-fit:cover;}
.article-body figure{margin:0 0 22px;max-width:100%;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;}
.article-body a{text-decoration:underline;text-decoration-style:dotted;text-underline-offset:3px;}
.article-body code{
  font-variant-numeric:tabular-nums;
  background:#F1EEE4;border-radius:4px;padding:1px 6px;font-size:15px;
}
.article-empty{
  padding:34px 24px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);
  text-align:center;color:var(--muted);
}
.article-empty p{margin:0 0 18px;max-width:none;font-size:16px;}

/* ---------- 风险提示 ---------- */
.article-notice{
  max-width:760px;margin-top:36px;
  padding:18px 22px;
  background:rgba(246,227,205,.45);
  border-left:3px solid var(--danger);
  border-radius:0 12px 12px 0;
  font-size:14px;line-height:1.85;color:#4A4034;
}
.article-notice strong{color:#7A3B33;font-weight:600;}
.article-notice p{margin:0;max-width:none;}

/* ---------- 侧栏 ---------- */
.article-side{min-width:0;}
.side-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-1);
  padding:22px;
}
.side-card h2{font-size:16px;font-weight:600;color:var(--ink);margin:0 0 14px;}
.side-list{list-style:none;margin:0 0 18px;padding:0;}
.side-list li{
  position:relative;padding-left:16px;margin-bottom:12px;
  font-size:14px;line-height:1.75;color:#3B4A43;
}
.side-list li::before{
  content:"";position:absolute;left:0;top:9px;
  width:5px;height:5px;border-radius:50%;background:var(--accent);
}
.side-list li span{color:var(--muted);display:block;font-size:13px;}
.side-note{
  font-size:13px;line-height:1.75;color:var(--muted);
  border-top:1px dashed var(--line);padding-top:14px;margin:0 0 16px;max-width:none;
}
.side-cta{width:100%;}

/* ---------- 继续了解 ---------- */
.readmore-section{padding:56px 0;background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:46em;margin-bottom:28px;}
.section-head h2{font-size:30px;line-height:1.4;font-weight:700;color:var(--ink);margin:0 0 10px;}
.section-head p{margin:0;color:var(--muted);font-size:15px;line-height:1.8;}
.readmore-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.readmore-item{
  display:flex;align-items:flex-start;gap:16px;min-width:0;
  padding:20px;background:var(--bg);
  border:1px solid var(--line);border-radius:var(--radius-card);
  color:inherit;
  transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.readmore-item:hover{
  border-color:rgba(14,79,63,.35);
  box-shadow:var(--shadow-2);transform:translateY(-2px);color:inherit;
}
.readmore-num{
  flex:0 0 auto;font-size:15px;font-weight:600;
  font-variant-numeric:tabular-nums;letter-spacing:-.01em;color:var(--accent);
}
.readmore-text{min-width:0;}
.readmore-title{display:block;font-size:16px;font-weight:600;color:var(--ink);margin-bottom:4px;line-height:1.6;}
.readmore-desc{display:block;font-size:14px;color:var(--muted);line-height:1.7;}

/* ---------- 返回入口 ---------- */
.article-nav-section{padding:44px 0 56px;}
.article-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.nav-card{
  display:block;min-width:0;padding:18px 20px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);color:inherit;
  transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.nav-card:hover{
  border-color:rgba(14,79,63,.35);box-shadow:var(--shadow-2);
  transform:translateY(-2px);color:inherit;
}
.nav-card-label{display:block;font-size:13px;color:var(--muted);margin-bottom:4px;}
.nav-card strong{display:block;font-size:16px;font-weight:600;color:var(--ink);}

/* ---------- 下载 CTA ---------- */
.dl-banner{background:var(--dark);color:#EAF1EC;padding:44px 0;}
.dl-banner-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;}
.dl-text{min-width:0;flex:1 1 320px;}
.dl-text h2{font-size:26px;line-height:1.4;font-weight:700;color:#F4F8F4;margin:0 0 8px;}
.dl-text p{margin:0;font-size:14px;line-height:1.8;color:rgba(234,241,236,.72);max-width:38em;}
.dl-btns{display:flex;flex-wrap:wrap;gap:12px;}
.dl-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 20px;
  border-radius:var(--radius-btn);border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.06);color:#EAF1EC;
  font-size:15px;font-weight:600;
  transition:background .18s ease,border-color .18s ease,color .18s ease,transform .18s ease;
}
.dl-btn:hover{background:var(--accent);border-color:var(--accent);color:#1B1206;transform:translateY(-1px);}
.dl-btn.is-primary{background:var(--accent);border-color:var(--accent);color:#1B1206;}
.dl-btn.is-primary:hover{background:var(--accent-deep);border-color:var(--accent-deep);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--surface);border-top:1px solid var(--line);padding-top:52px;}
.footer-col{min-width:0;}
.footer-col h3{font-size:15px;font-weight:600;color:var(--ink);margin:0 0 14px;}
.site-footer .brand{margin-bottom:4px;}
.site-footer p{font-size:14px;color:var(--muted);line-height:1.85;max-width:34em;}
.footer-links{list-style:none;margin:0;padding:0;}
.footer-links li{margin-bottom:9px;}
.footer-links a{font-size:14px;color:#3B4A43;}
.footer-links a:hover{color:var(--brand);}
.footer-dl{display:flex;flex-direction:column;gap:8px;align-items:flex-start;}
.footer-dl a{
  display:inline-flex;align-items:center;min-height:34px;
  font-size:14px;color:#3B4A43;
  border-bottom:1px dashed transparent;transition:border-color .18s ease,color .18s ease;
}
.footer-dl a:hover{color:var(--brand);border-bottom-color:rgba(14,79,63,.4);}
.footer-risk{font-size:13px;line-height:1.8;color:#8A968F;max-width:26em;}
.footer-bottom{background:var(--dark);margin-top:44px;padding:18px 0;}
.footer-bottom-inner{
  display:flex;flex-wrap:wrap;gap:10px 24px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(234,241,236,.7);
}

/* ---------- 响应式 ---------- */
@media (min-width:992px){
  .site-menu .nav-link.active::before{display:block;}
}
@media (max-width:1199.98px){
  .side-card{position:static;}
}
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 260px;gap:48px;}
  .article-side .side-card{position:sticky;top:96px;}
}
@media (max-width:991.98px){
  .site-header{padding:12px 12px 0;}
  .site-navbar{min-height:56px;border-radius:16px;}
  .nav-inner{min-height:56px;}
  .site-navbar .navbar-collapse{
    margin-top:10px;border-top:1px solid var(--line);
    padding:8px 0 14px;flex-basis:100%;
  }
  .site-menu{gap:0;align-items:stretch;width:100%;}
  .site-menu .nav-link{
    display:flex;align-items:center;min-height:48px;
    padding:8px 6px;border-bottom:1px solid var(--line);
  }
  .site-menu .nav-link::after{display:none;}
  .site-menu .nav-link.active::before{
    content:"";position:static;transform:none;
    display:inline-block;width:4px;height:4px;flex:0 0 4px;margin-right:8px;
  }
  .nav-download{margin-top:12px;width:100%;}
  .article-hero h1{font-size:30px;}
  .readmore-grid{grid-template-columns:minmax(0,1fr);}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px;}
  .site-header{padding:10px 10px 0;}
  .brand-name{font-size:15px;}
  .article-crumb{padding-top:20px;}
  .article-hero{padding:18px 0 26px;}
  .article-hero h1{font-size:26px;line-height:1.4;}
  .article-content-section{padding:32px 0 40px;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:21px;margin-top:32px;}
  .article-body h3{font-size:18px;}
  .readmore-section{padding:40px 0;}
  .section-head h2{font-size:23px;}
  .article-nav{grid-template-columns:minmax(0,1fr);}
  .dl-banner{padding:34px 0;}
  .dl-text h2{font-size:21px;}
  .dl-btns{width:100%;}
  .dl-btn{flex:1 1 100%;}
  .article-nav-section{padding:32px 0 44px;}
  .footer-bottom-inner{justify-content:flex-start;}
}
@media (max-width:520px){
  .article-hero h1{font-size:23px;}
  .crumb-list li:last-child{max-width:180px;}
  .brand-sub{letter-spacing:.04em;}
  .readmore-item{padding:16px;gap:12px;}
}