/* roulang page: index */
:root{
  --ink-900:#101C2B;
  --ink-800:#1B2B3D;
  --ink-700:#33465C;
  --ink-500:#64778C;
  --line:#E3EAF2;
  --line-strong:#D8E2EE;
  --bg:#F7F9FC;
  --surface:#FFFFFF;
  --brand-900:#0B2A4A;
  --brand-800:#0F3B66;
  --brand-700:#14508C;
  --brand-600:#1A6BC4;
  --brand-100:#E4EFFA;
  --brand-50:#F2F7FD;
  --signal-500:#F28C1B;
  --signal-50:#FFF4E5;
  --signal-ink:#9A5A05;
  --ok:#17916B;
  --warn:#C2760A;
  --error:#D64545;
  --radius-card:14px;
  --radius-lg:18px;
  --radius-btn:10px;
  --shadow-card:0 1px 2px rgba(16,28,43,.06),0 10px 24px -14px rgba(16,28,43,.18);
  --shadow-hover:0 2px 4px rgba(16,28,43,.08),0 18px 36px -18px rgba(16,28,43,.26);
  --sidebar-w:248px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
.site-body{
  margin:0;
  padding:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  background:var(--bg);
  color:var(--ink-700);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand-600);text-decoration:none;transition:color .16s ease-out;}
a:hover{color:var(--brand-700);}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:6px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1,"lnum" 1;}

/* ============ 侧边导航 ============ */
.shell-sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  background:var(--surface);border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:22px 16px 18px;
  overflow-y:auto;z-index:60;
}
.brand{display:flex;align-items:center;gap:10px;padding:4px 8px 18px;border-bottom:1px solid var(--line);}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  background:var(--brand-600);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-weight:700;font-size:14px;letter-spacing:.5px;
  box-shadow:0 6px 14px -8px rgba(26,107,196,.9);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-size:15px;font-weight:700;color:var(--ink-900);letter-spacing:.2px;}
.brand-sub{font-size:11px;color:var(--ink-500);letter-spacing:.6px;margin-top:3px;}
.nav-group{padding:16px 0 4px;}
.nav-label{font-size:11px;font-weight:600;color:var(--ink-500);letter-spacing:1.4px;padding:0 10px 8px;}
.nav-item{
  display:flex;align-items:center;gap:10px;
  min-height:44px;padding:0 10px;margin-bottom:2px;
  border-radius:10px;border-left:3px solid transparent;
  font-size:15px;color:var(--ink-700);font-weight:500;
  transition:background .15s ease-out,color .15s ease-out;
}
.nav-item:hover{background:var(--brand-50);color:var(--ink-900);}
.nav-item.is-active{
  background:var(--brand-100);color:var(--brand-700);
  border-left-color:var(--brand-600);font-weight:600;
}
.nav-item .nav-ico{
  width:18px;height:18px;flex:0 0 18px;display:inline-flex;
  align-items:center;justify-content:center;color:currentColor;opacity:.9;
}
.nav-item .nav-ico svg{width:17px;height:17px;}
.side-note{
  margin-top:auto;padding:14px;border-radius:12px;
  background:var(--brand-50);border:1px solid var(--line);
}
.side-note p{margin:0 0 8px;font-size:12.5px;line-height:1.65;color:var(--ink-500);}
.side-note a{font-size:13px;font-weight:600;display:inline-flex;align-items:center;gap:4px;}
.side-note a:hover{gap:8px;}

/* ============ 移动顶栏 ============ */
.mobile-bar{
  display:none;position:fixed;top:0;left:0;right:0;height:64px;z-index:70;
  background:var(--surface);border-bottom:1px solid var(--line);
  align-items:center;justify-content:space-between;padding:0 12px;
}
.mobile-bar .mb-brand{display:flex;align-items:center;gap:8px;}
.mobile-bar .brand-mark{width:32px;height:32px;flex:0 0 32px;font-size:12px;border-radius:9px;}
.mobile-bar .brand-name{font-size:14px;}
.hamburger{
  width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:var(--surface);display:inline-flex;align-items:center;justify-content:center;
  color:var(--ink-900);
}
.hamburger:hover{background:var(--brand-50);}
.mb-cta{height:40px;padding:0 14px;border-radius:10px;font-size:13.5px;}
.drawer-mask{
  display:none;position:fixed;inset:0;background:rgba(11,42,74,.45);z-index:80;
}
.drawer-mask.is-open{display:block;}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:280px;max-width:86vw;
  background:var(--surface);z-index:90;padding:18px 14px;
  transform:translateX(-102%);transition:transform .24s ease-out;
  overflow-y:auto;border-right:1px solid var(--line);
}
.drawer.is-open{transform:translateX(0);}
.drawer .nav-item{min-height:48px;font-size:15px;}
.drawer-close{
  margin-left:auto;width:36px;height:36px;border-radius:9px;border:1px solid var(--line);
  background:var(--surface);color:var(--ink-700);font-size:18px;line-height:1;
}

/* ============ 主内容 ============ */
.shell-main{margin-left:var(--sidebar-w);min-height:100vh;}
.container{width:100%;max-width:1120px;margin:0 auto;padding:0 40px;}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line);
  background:
    linear-gradient(180deg,rgba(247,249,252,.92) 0%,rgba(247,249,252,.98) 62%,var(--bg) 100%),
    url('/assets/images/backpic/back-1.webp') right 20% center/cover no-repeat;
}
.hero-inner{
  display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;
  padding-top:76px;padding-bottom:76px;
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:999px;padding:5px 12px;font-size:12.5px;color:var(--ink-500);
  box-shadow:var(--shadow-card);margin-bottom:20px;
}
.dot-live{width:7px;height:7px;border-radius:50%;background:var(--signal-500);display:inline-block;}
.hero h1{
  margin:0 0 16px;font-size:44px;line-height:1.22;font-weight:700;
  color:var(--ink-900);letter-spacing:-.4px;
}
.hero h1 em{font-style:normal;color:var(--brand-700);}
.hero-sub{margin:0 0 26px;font-size:17px;line-height:1.7;color:var(--ink-700);max-width:30em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;}
.hero-meta{margin:20px 0 0;font-size:13px;color:var(--ink-500);display:flex;flex-wrap:wrap;gap:6px 14px;}
.hero-meta span{display:inline-flex;align-items:center;gap:6px;}
.hero-metrics{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.metric{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:18px 16px;box-shadow:var(--shadow-card);
}
.metric-value{display:flex;align-items:baseline;gap:5px;color:var(--ink-900);}
.metric-value b{font-size:32px;font-weight:700;line-height:1;letter-spacing:-.5px;}
.metric-value i{font-style:normal;font-size:12px;color:var(--ink-500);font-weight:500;}
.metric-label{margin:8px 0 10px;font-size:13px;color:var(--ink-500);}
.trend{
  display:inline-flex;align-items:center;gap:4px;font-size:12px;font-weight:600;
  padding:2px 8px;border-radius:999px;
}
.trend.up{background:#E7F6F0;color:var(--ok);}
.trend.flat{background:var(--brand-50);color:var(--brand-700);}
.trend.down{background:var(--signal-50);color:var(--signal-ink);}

/* ============ 通用区块 ============ */
.section{padding:80px 0;}
.section.alt{background:var(--brand-50);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:30px;flex-wrap:wrap;}
.section-head .sh-left{max-width:640px;}
.sec-kicker{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:1.6px;
  color:var(--brand-700);background:var(--brand-100);
  padding:3px 10px;border-radius:999px;margin-bottom:12px;
}
.sec-title{margin:0;font-size:30px;line-height:1.3;font-weight:700;color:var(--ink-900);letter-spacing:-.3px;}
.sec-desc{margin:10px 0 0;font-size:15px;color:var(--ink-500);line-height:1.8;}

/* ============ 按钮 ============ */
.btn-primary,.btn-ghost,.btn-text{display:inline-flex;align-items:center;justify-content:center;gap:8px;}
.btn-primary{
  height:46px;padding:0 24px;border-radius:var(--radius-btn);
  background:var(--brand-600);color:#fff;font-size:15px;font-weight:600;
  border:1px solid var(--brand-600);
  transition:background .16s ease-out,transform .16s ease-out,box-shadow .16s ease-out;
  box-shadow:0 8px 18px -12px rgba(26,107,196,.9);
}
.btn-primary:hover{background:var(--brand-700);border-color:var(--brand-700);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  background:var(--surface);color:var(--ink-900);font-size:15px;font-weight:600;
  border:1px solid var(--line-strong);
  transition:border-color .16s ease-out,color .16s ease-out,background .16s ease-out;
}
.btn-ghost:hover{border-color:var(--brand-600);color:var(--brand-600);background:#fff;}
.btn-text{
  background:none;border:0;padding:0;color:var(--brand-600);
  font-size:14px;font-weight:600;gap:6px;
}
.btn-text .arrow{transition:transform .16s ease-out;}
.btn-text:hover .arrow{transform:translateX(4px);}

/* ============ 内容线索矩阵 ============ */
.matrix{display:grid;grid-template-columns:7fr 5fr;gap:20px;}
.feature-card{
  position:relative;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);
  display:flex;flex-direction:column;
}
.feature-card .fc-media{position:relative;aspect-ratio:16/9;overflow:hidden;}
.feature-card .fc-media img{width:100%;height:100%;object-fit:cover;}
.feature-card .fc-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,42,74,0) 40%,rgba(11,42,74,.55) 100%);
}
.feature-card .fc-no{
  position:absolute;top:16px;left:16px;z-index:2;
  background:rgba(255,255,255,.94);color:var(--brand-700);
  font-size:12px;font-weight:700;letter-spacing:1px;
  padding:4px 10px;border-radius:999px;
}
.feature-card .fc-body{padding:22px 24px 24px;}
.feature-card h3{margin:0 0 10px;font-size:20px;font-weight:700;color:var(--ink-900);}
.feature-card p{margin:0 0 16px;font-size:14.5px;line-height:1.8;color:var(--ink-500);}
.mini-stack{display:grid;grid-template-rows:repeat(3,1fr);gap:14px;}
.mini-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:16px 18px;box-shadow:var(--shadow-card);
  display:flex;align-items:flex-start;gap:14px;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.mini-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#CFE0F2;}
.mini-ico{
  width:40px;height:40px;flex:0 0 40px;border-radius:11px;
  background:var(--brand-50);color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;
}
.mini-ico svg{width:19px;height:19px;}
.mini-card h4{margin:0 0 4px;font-size:16px;font-weight:600;color:var(--ink-900);}
.mini-card p{margin:0;font-size:13.5px;color:var(--ink-500);line-height:1.7;}

/* ============ 最新消息 ============ */
.chips{display:flex;gap:8px;overflow-x:auto;padding:2px 0 6px;margin-bottom:22px;scrollbar-width:thin;}
.chip{
  flex:0 0 auto;border:1px solid var(--line);background:var(--surface);
  color:var(--ink-700);font-size:13px;font-weight:500;
  padding:6px 14px;border-radius:999px;white-space:nowrap;
  transition:background .15s ease-out,color .15s ease-out,border-color .15s ease-out;
}
.chip:hover{border-color:var(--brand-600);color:var(--brand-600);}
.chip.is-active{background:var(--brand-100);border-color:var(--brand-100);color:var(--brand-700);font-weight:600;}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.news-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-card);display:flex;flex-direction:column;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#CFE0F2;}
.news-card .nc-media{aspect-ratio:16/9;overflow:hidden;background:var(--brand-50);}
.news-card .nc-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.news-card:hover .nc-media img{transform:scale(1.03);}
.news-card .nc-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:10px;flex:1;}
.badge{
  display:inline-block;font-size:12px;font-weight:500;
  padding:3px 10px;border-radius:999px;
  background:var(--brand-50);color:var(--brand-700);border:1px solid var(--brand-100);
}
.badge.signal{background:var(--signal-50);color:var(--signal-ink);border-color:#FBE0BF;}
.news-card h3{margin:0;font-size:17px;line-height:1.5;font-weight:600;color:var(--ink-900);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card h3 a{color:inherit;}
.news-card h3 a:hover{color:var(--brand-600);}
.news-card .nc-summary{margin:0;font-size:13.5px;line-height:1.7;color:var(--ink-500);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.nc-meta{margin-top:auto;display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--ink-500);padding-top:2px;}
.nc-meta .sep{color:var(--line-strong);}
.empty-state{
  grid-column:1/-1;
  border:1px dashed var(--line-strong);border-radius:16px;background:var(--surface);
  padding:48px 24px;text-align:center;
}
.empty-state .es-ico{
  width:52px;height:52px;margin:0 auto 14px;border-radius:14px;
  background:var(--brand-50);color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;
}
.empty-state p{margin:0 0 16px;font-size:14.5px;color:var(--ink-500);}

/* ============ 对比条 ============ */
.compare-wrap{display:grid;grid-template-columns:4fr 8fr;gap:40px;align-items:start;}
.compare-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px 26px 22px;box-shadow:var(--shadow-card);
}
.compare-row{margin-bottom:22px;}
.compare-row:last-child{margin-bottom:0;}
.cr-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:8px;}
.cr-name{font-size:14px;font-weight:600;color:var(--ink-900);}
.cr-value{font-size:16px;font-weight:700;color:var(--ink-900);}
.cr-value small{font-size:12px;color:var(--ink-500);font-weight:500;margin-left:2px;}
.track{height:8px;border-radius:999px;background:var(--line);overflow:hidden;margin-bottom:6px;}
.track .fill{height:100%;border-radius:999px;background:var(--brand-600);}
.track.signal .fill{background:var(--signal-500);}
.track-label{font-size:12px;color:var(--ink-500);}
.compare-legend{display:flex;gap:18px;margin-top:22px;padding-top:18px;border-top:1px solid var(--line);flex-wrap:wrap;}
.legend-item{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;color:var(--ink-500);}
.legend-dot{width:9px;height:9px;border-radius:3px;display:inline-block;}

/* ============ 更新节奏时间轴 ============ */
.timeline{position:relative;padding-left:26px;}
.timeline::before{
  content:"";position:absolute;left:6px;top:6px;bottom:6px;width:2px;background:var(--line);
}
.tl-item{position:relative;padding-bottom:26px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-26px;top:6px;width:14px;height:14px;border-radius:50%;
  background:var(--surface);border:3px solid var(--brand-600);
}
.tl-time{font-size:12.5px;color:var(--brand-700);font-weight:700;letter-spacing:.6px;margin-bottom:4px;}
.tl-title{margin:0 0 4px;font-size:16px;font-weight:600;color:var(--ink-900);}
.tl-desc{margin:0;font-size:13.5px;color:var(--ink-500);line-height:1.75;}
.rhythm-grid{display:grid;grid-template-columns:6fr 6fr;gap:44px;align-items:center;}

/* ============ FAQ ============ */
.faq-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-card);overflow:hidden;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;
  padding:18px 22px;font-size:15.5px;font-weight:600;color:var(--ink-900);
  transition:color .15s ease-out,background .15s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";width:3px;align-self:stretch;border-radius:2px;
  background:transparent;flex:0 0 3px;margin:-18px 0;
}
.faq-item summary:hover{background:var(--brand-50);}
.faq-item summary .fx{
  margin-left:auto;font-size:18px;color:var(--ink-500);transition:transform .2s ease-out;
  font-weight:400;line-height:1;
}
.faq-item[open] summary{color:var(--brand-700);}
.faq-item[open] summary::before{background:var(--brand-600);}
.faq-item[open] summary .fx{transform:rotate(180deg);color:var(--brand-600);}
.faq-answer{padding:0 22px 20px 39px;font-size:15px;line-height:1.85;color:var(--ink-700);}

/* ============ 转化表单 ============ */
.cta-grid{display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:start;}
.cta-points{list-style:none;padding:0;margin:22px 0 0;}
.cta-points li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-700);margin-bottom:12px;line-height:1.7;}
.cta-points li::before{
  content:"";flex:0 0 6px;width:6px;height:6px;border-radius:50%;
  background:var(--brand-600);margin-top:10px;
}
.contact-line{margin-top:24px;padding-top:20px;border-top:1px solid var(--line);font-size:13.5px;color:var(--ink-500);line-height:2;}
.contact-line strong{color:var(--ink-900);font-weight:600;}
.form-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:30px;box-shadow:var(--shadow-card);
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink-700);margin-bottom:7px;}
.req{color:var(--signal-500);margin-left:3px;}
.field input,.field select,.field textarea{
  width:100%;height:46px;padding:0 14px;font-size:15px;font-family:inherit;
  color:var(--ink-900);background:#fff;
  border:1px solid var(--line-strong);border-radius:var(--radius-btn);
  transition:border-color .15s ease-out,box-shadow .15s ease-out;
}
.field textarea{height:104px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-600);box-shadow:0 0 0 4px rgba(26,107,196,.12);
}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.form-note{margin:12px 0 0;font-size:12.5px;color:var(--ink-500);line-height:1.7;}
.form-feedback{
  display:none;margin-top:14px;padding:10px 14px;border-radius:10px;
  background:#E7F6F0;color:#0F6E51;font-size:13.5px;border:1px solid #C9EADE;
}
.form-feedback.is-show{display:block;}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-900);color:#C7D5E6;padding:56px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{background:var(--brand-600);}
.footer-brand .brand-name{color:#fff;}
.footer-desc{font-size:13.5px;line-height:1.85;color:#9FB3CB;margin:0;max-width:26em;}
.footer-col h4{margin:0 0 14px;font-size:14px;font-weight:600;color:#fff;}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li{margin-bottom:9px;}
.footer-col a{font-size:14px;color:#C7D5E6;line-height:1.8;}
.footer-col a:hover{color:#fff;}
.footer-contact li{font-size:13.5px;color:#9FB3CB;line-height:1.9;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:18px 0 22px;display:flex;align-items:center;justify-content:space-between;
  gap:12px;flex-wrap:wrap;font-size:13px;color:#8AA0BA;
}
.footer-bottom a{color:#8AA0BA;}
.footer-bottom a:hover{color:#fff;}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  :root{--sidebar-w:212px;}
  .container{padding:0 28px;}
  .hero h1{font-size:40px;}
  .hero-inner{gap:34px;padding-top:60px;padding-bottom:60px;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .sec-title{font-size:27px;}
}
@media (max-width:1023px){
  .shell-sidebar{display:none;}
  .mobile-bar{display:flex;}
  .shell-main{margin-left:0;padding-top:64px;}
  .container{padding:0 24px;}
  .hero-inner{grid-template-columns:1fr;gap:34px;padding-top:48px;padding-bottom:52px;}
  .hero h1{font-size:34px;}
  .hero-sub{font-size:16px;}
  .hero{background:var(--bg);}
  .section{padding:56px 0;}
  .matrix{grid-template-columns:1fr;}
  .compare-wrap{grid-template-columns:1fr;gap:24px;}
  .rhythm-grid{grid-template-columns:1fr;gap:28px;}
  .cta-grid{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .hero h1{font-size:28px;letter-spacing:-.2px;}
  .hero-sub{font-size:15px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn-primary,.hero-actions .btn-ghost{width:100%;}
  .hero-metrics{grid-template-columns:1fr 1fr;gap:10px;}
  .metric{padding:14px 12px;}
  .metric-value b{font-size:26px;}
  .section{padding:44px 0;}
  .sec-title{font-size:23px;}
  .sec-desc{font-size:14px;}
  .news-grid{grid-template-columns:1fr;}
  .mini-stack{grid-template-rows:none;}
  .field-row{grid-template-columns:1fr;}
  .form-card{padding:22px 18px;}
  .faq-item summary{padding:16px 16px;font-size:15px;}
  .faq-answer{padding:0 16px 18px 32px;font-size:14.5px;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .site-body{font-size:15px;}
}
@media (max-width:519px){
  .hero-metrics{grid-template-columns:1fr;}
  .brand-sub{display:none;}
}

/* roulang page: article */
:root{
  --ink-900:#101C2B;--ink-700:#33465C;--ink-500:#64778C;--line:#E3EAF2;
  --bg:#F7F9FC;--surface:#FFFFFF;
  --brand-900:#0B2A4A;--brand-700:#14508C;--brand-600:#1A6BC4;--brand-100:#E4EFFA;--brand-50:#F2F7FD;
  --signal-500:#F28C1B;--signal-50:#FFF4E5;
  --success:#17916B;--warn:#C2760A;--danger:#D64545;
  --shadow-card:0 1px 2px rgba(16,28,43,.06),0 10px 24px -14px rgba(16,28,43,.18);
  --shadow-hover:0 2px 4px rgba(16,28,43,.08),0 18px 36px -18px rgba(16,28,43,.26);
  --radius-card:14px;--radius-lg:18px;--radius-btn:10px;
  --sidebar-w:248px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink-700);font-size:16px;line-height:1.75;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  -webkit-font-smoothing:antialiased}
h1,h2,h3,h4,h5,p,figure,blockquote,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
a{color:var(--brand-600);text-decoration:none;transition:color .16s ease,border-color .16s ease}
a:hover{color:var(--brand-700)}
img{max-width:100%;height:auto;display:block}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:4px}
::selection{background:var(--brand-100);color:var(--brand-900)}

/* ---------- 布局骨架 ---------- */
.sidebar{position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);background:var(--surface);
  border-right:1px solid var(--line);padding:22px 16px 20px;display:flex;flex-direction:column;gap:18px;
  overflow-y:auto;z-index:70;transition:transform .26s cubic-bezier(.4,0,.2,1)}
.brand{display:flex;align-items:center;gap:10px;padding:0 6px;min-height:40px}
.brand-mark{width:36px;height:36px;flex:0 0 36px;border-radius:10px;background:var(--brand-900);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;letter-spacing:.04em}
.brand-name{font-size:15px;font-weight:700;color:var(--ink-900);line-height:1.25;letter-spacing:-.01em}
.nav-label{font-size:12px;color:var(--ink-500);letter-spacing:.08em;padding:0 10px;margin-bottom:8px}
.nav-group{display:flex;flex-direction:column;gap:2px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.nav-item{position:relative;display:flex;align-items:center;gap:10px;height:44px;padding:0 12px;
  border-radius:10px;font-size:15px;color:var(--ink-700);transition:background .15s ease,color .15s ease}
.nav-item:hover{background:var(--brand-50);color:var(--ink-900)}
.nav-item.is-active{background:var(--brand-100);color:var(--brand-700);font-weight:600}
.nav-item.is-active::before{content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;border-radius:2px;background:var(--brand-600)}
.nav-ico{width:18px;height:18px;flex:0 0 18px;display:inline-flex;align-items:center;justify-content:center;color:currentColor}
.nav-ico svg{width:18px;height:18px;display:block}
.side-card{margin-top:auto;background:var(--brand-50);border:1px solid var(--brand-100);border-radius:12px;padding:14px 14px 12px}
.side-card strong{display:block;font-size:14px;font-weight:600;color:var(--brand-900);margin-bottom:6px}
.side-card p{font-size:12.5px;line-height:1.7;color:var(--ink-500)}
.side-card a{display:inline-flex;align-items:center;gap:4px;margin-top:10px;font-size:13px;font-weight:600;color:var(--brand-600)}
.side-card a:hover{color:var(--brand-700)}
.side-note{font-size:12px;color:var(--ink-500);padding:0 6px;line-height:1.7}

.mobile-bar{display:none}
.overlay{display:none}
.main-wrap{margin-left:var(--sidebar-w);display:flex;flex-direction:column;min-height:100vh}
.main-content{flex:1}
.container{width:100%;max-width:1120px;margin:0 auto;padding:0 40px}

/* ---------- 通用组件 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;
  border-radius:var(--radius-btn);font-size:15px;font-weight:600;white-space:nowrap;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease}
.btn-primary{background:var(--brand-600);color:#fff}
.btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-card)}
.btn-primary:active{transform:none;box-shadow:none}
.btn-ghost{background:var(--surface);color:var(--ink-900);border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--brand-600);color:var(--brand-600);transform:translateY(-1px)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:500;
  padding:4px 10px;border-radius:999px;line-height:1.6}
.badge-cat{background:var(--brand-50);color:var(--brand-700);border:1px solid var(--brand-100)}
.badge-signal{background:var(--signal-50);color:#9A5A05;border:1px solid #F8DFBC}
.chip{display:inline-flex;align-items:center;font-size:12px;font-weight:500;padding:5px 12px;
  border-radius:999px;background:var(--brand-50);color:var(--brand-700);border:1px solid var(--brand-100);
  transition:background .15s ease,color .15s ease,border-color .15s ease}
.chip:hover{background:var(--brand-100);color:var(--brand-700)}
.chip.is-plain{background:#F3F6FA;color:var(--ink-700);border-color:var(--line)}
.chip.is-plain:hover{background:var(--brand-100);color:var(--brand-700);border-color:var(--brand-100)}
.text-link{display:inline-flex;align-items:center;gap:4px;font-size:14px;font-weight:600;color:var(--brand-600)}
.text-link svg{width:14px;height:14px;transition:transform .18s ease}
.text-link:hover svg{transform:translateX(4px)}

/* ---------- 文章页 ---------- */
.page{padding:28px 0 0}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-500);margin-bottom:22px}
.breadcrumb a{color:var(--ink-500)}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb .sep{color:#BDCBDD}
.breadcrumb .current{color:var(--ink-700);max-width:46ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:48px;align-items:start}
.article-main{min-width:0;max-width:768px}
.article-head h1{font-size:36px;line-height:1.3;font-weight:700;color:var(--ink-900);
  letter-spacing:-.012em;margin:14px 0 16px;word-break:break-word}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-500)}
.meta-row .dot{color:#C3CFDD}
.meta-row time{font-variant-numeric:tabular-nums}
.rule{margin:26px 0 0;height:1px;background:var(--line);border:0}

.prose-cn{font-size:16px;line-height:1.85;color:var(--ink-700);padding:28px 0 4px;word-break:break-word}
.prose-cn > * + *{margin-top:18px}
.prose-cn h2{position:relative;font-size:23px;font-weight:700;line-height:1.42;color:var(--ink-900);
  margin-top:40px;padding-left:14px}
.prose-cn h2::before{content:"";position:absolute;left:0;top:5px;bottom:5px;width:4px;border-radius:2px;background:var(--brand-600)}
.prose-cn h3{font-size:18px;font-weight:600;line-height:1.6;color:var(--ink-900);margin-top:30px}
.prose-cn h4{font-size:16px;font-weight:600;color:var(--ink-900);margin-top:24px}
.prose-cn p{margin-top:18px}
.prose-cn strong{color:var(--ink-900);font-weight:600}
.prose-cn ul,.prose-cn ol{padding-left:22px;margin-top:16px}
.prose-cn ul{list-style:disc}
.prose-cn ol{list-style:decimal}
.prose-cn li{margin-top:8px;line-height:1.9}
.prose-cn li::marker{color:var(--brand-600)}
.prose-cn blockquote{background:var(--brand-50);border-left:3px solid var(--brand-600);
  padding:16px 20px;border-radius:0 10px 10px 0;color:var(--ink-700);margin-top:24px}
.prose-cn blockquote p:first-child{margin-top:0}
.prose-cn img{border-radius:12px;border:1px solid var(--line);margin:14px auto}
.prose-cn figure{margin:24px 0}
.prose-cn figcaption{font-size:13px;color:var(--ink-500);text-align:center;margin-top:10px;line-height:1.7}
.prose-cn a{color:var(--brand-600);border-bottom:1px solid rgba(26,107,196,.34)}
.prose-cn a:hover{color:var(--brand-700);border-bottom-color:var(--brand-700)}
.prose-cn table{width:100%;border-collapse:collapse;font-size:15px;margin:22px 0;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.prose-cn thead th{background:var(--brand-50);color:var(--ink-900);font-weight:600}
.prose-cn th,.prose-cn td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.prose-cn tbody tr:last-child td{border-bottom:0}
.prose-cn code{background:var(--brand-50);color:var(--brand-700);padding:2px 6px;border-radius:6px;font-size:14px}
.prose-cn hr{border:0;height:1px;background:var(--line);margin:34px 0}

.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:36px;padding-top:22px;border-top:1px solid var(--line)}
.tag-row .tag-label{font-size:13px;color:var(--ink-500);margin-right:4px}

.related{margin-top:38px}
.related h2{font-size:20px;font-weight:700;color:var(--ink-900);margin-bottom:18px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.related-card{display:flex;gap:12px;background:var(--surface);border:1px solid var(--line);
  border-radius:12px;padding:12px;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.related-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card);border-color:#CFE0F3}
.related-thumb{flex:0 0 88px;width:88px;height:66px;border-radius:10px;overflow:hidden;border:1px solid var(--line);background:var(--brand-50)}
.related-thumb img{width:100%;height:100%;object-fit:cover}
.related-body{min-width:0}
.related-body h3{font-size:15px;font-weight:600;line-height:1.5;color:var(--ink-900);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-body span{display:block;margin-top:6px;font-size:13px;color:var(--ink-500)}
.back-row{margin-top:30px}

.cta-band{margin:44px 0 0;background:var(--brand-50);border:1px solid var(--brand-100);
  border-radius:var(--radius-lg);padding:28px 32px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.cta-band h2{font-size:20px;font-weight:700;color:var(--brand-900);line-height:1.5}
.cta-band p{font-size:14px;color:var(--ink-500);margin-top:6px}

.article-aside{position:sticky;top:24px;align-self:start}
.aside-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);padding:18px;margin-bottom:16px}
.aside-card h2{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--ink-900);margin-bottom:10px}
.aside-card h2::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--brand-600)}
.aside-list li + li{border-top:1px dashed var(--line)}
.aside-list a{display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:9px 0;font-size:14px;color:var(--ink-700)}
.aside-list a:hover{color:var(--brand-600)}
.aside-list span.meta{font-size:12px;color:var(--ink-500);font-variant-numeric:tabular-nums}
.aside-cta{background:var(--brand-900);border:0;color:#C7D5E6}
.aside-cta h2{color:#fff}
.aside-cta h2::before{background:var(--signal-500)}
.aside-cta p{font-size:13px;line-height:1.8;color:#A9BED6}
.aside-cta .btn{margin-top:14px;width:100%;height:40px;font-size:14px;background:var(--brand-600);color:#fff}
.aside-cta .btn:hover{background:#2A7BD4;color:#fff}

.empty-state{border:1px dashed #C9D8E8;border-radius:16px;background:var(--surface);
  padding:56px 24px;text-align:center;margin-top:28px}
.empty-state .empty-icon{width:52px;height:52px;margin:0 auto 16px;border-radius:14px;
  background:var(--brand-50);color:var(--brand-600);display:flex;align-items:center;justify-content:center}
.empty-state p{font-size:15px;color:var(--ink-500)}
.empty-state .btn{margin-top:20px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:#C7D5E6;margin-top:64px;padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.25fr;gap:36px;padding-bottom:38px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{background:#fff;color:var(--brand-900)}
.footer-brand .brand-name{color:#fff;font-size:15px}
.footer-desc{font-size:14px;line-height:1.9;color:#9FB4CC;max-width:36ch}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-col li{margin-bottom:6px}
.footer-col a{font-size:14px;line-height:2;color:#C7D5E6}
.footer-col a:hover{color:#fff}
.footer-contact li{font-size:14px;line-height:2;color:#C7D5E6}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:18px 0 22px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:13px;color:#8FA6C0}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 24px}
  .article-layout{grid-template-columns:minmax(0,1fr) 216px;gap:32px}
}
@media (max-width:1023px){
  .sidebar{transform:translateX(-100%);width:280px;box-shadow:var(--shadow-hover)}
  .sidebar.is-open{transform:translateX(0)}
  .main-wrap{margin-left:0}
  .mobile-bar{display:flex;align-items:center;gap:12px;position:sticky;top:0;z-index:60;
    height:64px;padding:0 16px;background:var(--surface);border-bottom:1px solid var(--line)}
  .menu-btn{width:44px;height:44px;flex:0 0 44px;display:inline-flex;align-items:center;justify-content:center;
    border:1px solid var(--line);border-radius:10px;color:var(--ink-900);background:#fff;
    transition:background .15s ease,border-color .15s ease}
  .menu-btn:hover{background:var(--brand-50);border-color:var(--brand-100)}
  .menu-btn svg{width:20px;height:20px}
  .mobile-bar .brand{flex:1 1 auto;min-width:0;padding:0;gap:8px;min-height:0}
  .mobile-bar .brand-mark{width:30px;height:30px;flex:0 0 30px;font-size:11px;border-radius:8px}
  .mobile-bar .brand-name{font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .overlay{display:block;position:fixed;inset:0;background:rgba(11,42,74,.45);z-index:65;
    opacity:0;pointer-events:none;transition:opacity .24s ease}
  .overlay.is-open{opacity:1;pointer-events:auto}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0}
  .article-aside{display:none}
  .page{padding:22px 0 0}
  .article-main{max-width:none}
  .article-head h1{font-size:30px}
  .cta-band{padding:24px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .page{padding:18px 0 0}
  .breadcrumb{font-size:12.5px;gap:6px;margin-bottom:16px}
  .breadcrumb .current{max-width:28ch}
  .article-head h1{font-size:27px;line-height:1.34;margin:12px 0 14px}
  .prose-cn{font-size:15px;line-height:1.85}
  .prose-cn h2{font-size:20px;margin-top:32px}
  .prose-cn h3{font-size:17px;margin-top:24px}
  .prose-cn table{display:block;overflow-x:auto;white-space:nowrap}
  .related-grid{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;gap:16px;margin-top:32px}
  .cta-band .btn{width:100%}
  .btn{height:44px;padding:0 20px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .site-footer{margin-top:44px;padding-top:40px}
}
@media (max-width:519px){
  .footer-grid{grid-template-columns:1fr}
  .article-head h1{font-size:25px}
  .tag-row{margin-top:28px}
}

/* roulang page: category1 */
:root{
  --ink-900:#101C2B; --ink-700:#33465C; --ink-500:#64778C;
  --line:#E3EAF2; --bg:#F7F9FC; --surface:#FFFFFF;
  --brand-900:#0B2A4A; --brand-700:#14508C; --brand-600:#1A6BC4;
  --brand-100:#E4EFFA; --brand-50:#F2F7FD;
  --signal-500:#F28C1B; --signal-50:#FFF4E5;
  --ok:#17916B; --warn:#C2760A; --err:#D64545;
  --r-card:14px; --r-lg:18px; --r-btn:10px; --r-img:12px;
  --shadow-card:0 1px 2px rgba(16,28,43,.06), 0 10px 24px -14px rgba(16,28,43,.18);
  --shadow-hover:0 2px 4px rgba(16,28,43,.08), 0 18px 36px -18px rgba(16,28,43,.26);
  --sidebar-w:248px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
html body{
  margin:0; padding:0; background:var(--bg); color:var(--ink-700);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px; line-height:1.75; font-weight:400;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0; list-style:none;}
a{color:var(--brand-600); text-decoration:none; transition:color .15s ease;}
a:hover{color:var(--brand-700);}
img{max-width:100%; display:block;}
button{font-family:inherit; cursor:pointer;}
input,select,textarea{font-family:inherit; font-size:15px;}
:focus-visible{outline:2px solid var(--brand-600); outline-offset:2px; border-radius:6px;}
.container{width:100%; max-width:1120px; margin:0 auto; padding:0 40px;}

/* ===== 品牌与侧栏 ===== */
.shell{min-height:100vh;}
.sidebar{
  position:fixed; top:0; left:0; bottom:0; width:var(--sidebar-w);
  background:var(--surface); border-right:1px solid var(--line);
  padding:22px 16px 24px; display:flex; flex-direction:column; gap:20px;
  overflow-y:auto; z-index:60;
}
.sidebar-head{display:flex; align-items:center; justify-content:space-between; gap:8px;}
.brand{display:flex; align-items:center; gap:10px; min-height:40px;}
.brand-mark{
  width:38px; height:38px; flex:0 0 38px; border-radius:11px;
  background:var(--brand-600); color:#fff; display:grid; place-items:center;
  font-size:13px; font-weight:700; letter-spacing:.06em;
}
.brand-text{display:flex; flex-direction:column; line-height:1.2;}
.brand-text strong{font-size:15px; font-weight:700; color:var(--ink-900); letter-spacing:.01em;}
.brand-text small{font-size:11px; color:var(--ink-500); letter-spacing:.06em; margin-top:3px;}
.drawer-close{
  display:none; width:36px; height:36px; border:1px solid var(--line);
  background:#fff; border-radius:9px; color:var(--ink-500); font-size:18px; line-height:1;
}
.nav-group{display:flex; flex-direction:column; gap:4px;}
.nav-label{font-size:12px; font-weight:500; color:var(--ink-500); letter-spacing:.1em; padding:0 12px; margin-bottom:6px;}
.nav-item{
  display:flex; align-items:center; gap:10px; height:44px; padding:0 12px;
  border-radius:10px; font-size:15px; font-weight:500; color:var(--ink-700);
  position:relative; transition:background .15s ease,color .15s ease;
}
.nav-item:hover{background:var(--brand-50); color:var(--ink-900);}
.nav-item.is-active{background:var(--brand-100); color:var(--brand-700); font-weight:600;}
.nav-item.is-active::before{
  content:""; position:absolute; left:0; top:10px; bottom:10px; width:3px;
  border-radius:3px; background:var(--brand-600);
}
.nav-ico{width:18px; height:18px; flex:0 0 18px; display:grid; place-items:center; color:currentColor;}
.nav-ico svg{width:18px; height:18px;}
.sidebar-card{
  margin-top:auto; background:var(--brand-50); border:1px solid var(--brand-100);
  border-radius:var(--r-card); padding:16px;
}
.sidebar-card-title{font-size:14px; font-weight:600; color:var(--ink-900); margin-bottom:6px;}
.sidebar-card-desc{font-size:13px; line-height:1.7; color:var(--ink-500); margin-bottom:12px;}

/* ===== 顶部栏（移动端） ===== */
.topbar{display:none;}
.main-wrap{margin-left:var(--sidebar-w); display:flex; flex-direction:column; min-height:100vh;}
.drawer-mask{
  position:fixed; inset:0; background:rgba(11,42,74,.45); z-index:55;
  opacity:0; pointer-events:none; transition:opacity .2s ease;
}
.drawer-mask.is-open{opacity:1; pointer-events:auto;}

/* ===== 通用组件 ===== */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  height:46px; padding:0 24px; border-radius:var(--r-btn); border:1px solid transparent;
  font-size:15px; font-weight:600; line-height:1; cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--brand-600); color:#fff;}
.btn-primary:hover{background:var(--brand-700); color:#fff; transform:translateY(-1px);}
.btn-primary:active{transform:none;}
.btn-ghost{background:#fff; border-color:var(--line); color:var(--ink-900);}
.btn-ghost:hover{border-color:var(--brand-600); color:var(--brand-600);}
.btn-sm{height:38px; padding:0 16px; font-size:13px; border-radius:9px;}
.text-link{
  display:inline-flex; align-items:center; gap:6px; font-size:14px;
  font-weight:600; color:var(--brand-600);
}
.text-link::after{content:"→"; transition:transform .18s ease;}
.text-link:hover::after{transform:translateX(4px);}
.chip{
  display:inline-flex; align-items:center; gap:6px; padding:4px 10px;
  border-radius:999px; font-size:12px; font-weight:500; line-height:1.6;
}
.chip-brand{background:var(--brand-50); color:var(--brand-700);}
.chip-signal{background:var(--signal-50); color:#9A5A05;}
.chip-line{background:#fff; border:1px solid var(--line); color:var(--ink-500);}
.card-base{
  background:var(--surface); border:1px solid var(--line);
  border-radius:var(--r-card); box-shadow:var(--shadow-card);
}
.section{padding:64px 0;}
.section-head{display:flex; align-items:flex-end; justify-content:space-between; gap:24px; margin-bottom:28px;}
.section-title{font-size:30px; font-weight:700; line-height:1.25; color:var(--ink-900); letter-spacing:-.01em;}
.section-sub{font-size:15px; color:var(--ink-500); margin-top:8px;}
.divider{height:1px; background:var(--line); border:0; margin:0;}

/* ===== 面包屑 ===== */
.breadcrumb{
  display:flex; flex-wrap:wrap; align-items:center; gap:8px;
  font-size:13px; color:var(--ink-500); padding:26px 0 0;
}
.breadcrumb a{color:var(--ink-500);}
.breadcrumb a:hover{color:var(--brand-600);}
.breadcrumb .sep{color:#B6C4D4;}
.breadcrumb .current{color:var(--ink-700);}

/* ===== 分类 Hero ===== */
.cat-hero{padding:26px 0 8px;}
.cat-hero h1{
  font-size:34px; font-weight:700; line-height:1.28; color:var(--ink-900);
  letter-spacing:-.01em; margin:16px 0 12px; max-width:22em;
}
.cat-hero .lead{font-size:17px; line-height:1.7; color:var(--ink-700); max-width:36em;}
.hero-stats{display:flex; flex-wrap:wrap; gap:12px; margin-top:26px;}
.stat-mini{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--r-img);
  padding:12px 18px; box-shadow:var(--shadow-card); min-width:150px;
}
.stat-mini .num{
  font-size:24px; font-weight:700; color:var(--ink-900);
  font-variant-numeric:tabular-nums; line-height:1.2;
}
.stat-mini .unit{font-size:12px; font-weight:500; color:var(--ink-500); margin-left:3px;}
.stat-mini .desc{font-size:12px; color:var(--ink-500); margin-top:2px;}
.cat-banner{
  position:relative; margin-top:30px; border-radius:16px; overflow:hidden;
  border:1px solid var(--line); box-shadow:var(--shadow-card);
}
.cat-banner img{width:100%; height:200px; object-fit:cover;}
.cat-banner::after{
  content:""; position:absolute; inset:0;
  background:linear-gradient(90deg,rgba(11,42,74,.62) 0%,rgba(11,42,74,.18) 58%,rgba(11,42,74,0) 100%);
}
.cat-banner figcaption{
  position:absolute; left:24px; bottom:20px; z-index:2; color:#fff;
  font-size:15px; font-weight:600; letter-spacing:.02em;
  text-shadow:0 1px 8px rgba(11,42,74,.5);
}
.cat-banner .banner-tag{
  position:absolute; left:24px; top:20px; z-index:2;
  background:rgba(255,255,255,.92); color:var(--brand-700);
  font-size:12px; font-weight:600; padding:5px 12px; border-radius:999px;
}

/* ===== 时间轴 ===== */
.timeline-wrap{padding:56px 0 8px;}
.timeline{display:flex; flex-direction:column; gap:22px;}
.tl-item{display:grid; grid-template-columns:104px 20px 1fr; column-gap:16px; align-items:start;}
.tl-time{display:flex; flex-direction:column; align-items:flex-end; gap:2px; padding-top:16px;}
.tl-date{font-size:20px; font-weight:700; color:var(--ink-900); font-variant-numeric:tabular-nums; line-height:1.2;}
.tl-hour{font-size:13px; color:var(--ink-500); font-variant-numeric:tabular-nums;}
.tl-rail{position:relative; align-self:stretch; display:flex; justify-content:center;}
.tl-rail::before{
  content:""; position:absolute; top:0; bottom:-22px; left:50%;
  width:2px; transform:translateX(-50%); background:var(--line);
}
.tl-item:last-child .tl-rail::before{bottom:auto; height:28px;}
.tl-dot{
  position:relative; z-index:1; width:12px; height:12px; margin-top:20px;
  border-radius:50%; background:var(--brand-600); box-shadow:0 0 0 4px #fff;
}
.tl-card{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--r-card);
  box-shadow:var(--shadow-card); padding:20px 22px 20px 24px;
  transition:border-color .18s ease, box-shadow .18s ease;
}
.tl-card:hover{border-color:#C9DBEF; box-shadow:var(--shadow-hover);}
.tl-card-top{display:flex; align-items:center; gap:10px; flex-wrap:wrap; margin-bottom:10px;}
.tl-card h3{font-size:18px; font-weight:600; line-height:1.5; color:var(--ink-900); margin-bottom:8px;}
.tl-card p{font-size:14px; line-height:1.8; color:var(--ink-500); margin-bottom:14px;}
.tl-meta{display:flex; flex-wrap:wrap; align-items:center; gap:14px; font-size:13px; color:var(--ink-500);}

/* ===== 适用场景 ===== */
.scene-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:20px;}
.scene-card{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--r-card);
  box-shadow:var(--shadow-card); padding:26px 24px;
  transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.scene-card:hover{transform:translateY(-2px); box-shadow:var(--shadow-hover); border-color:#C9DBEF;}
.scene-num{
  font-size:13px; font-weight:700; color:var(--brand-600);
  font-variant-numeric:tabular-nums; letter-spacing:.06em;
}
.scene-card h3{font-size:18px; font-weight:600; color:var(--ink-900); margin:10px 0 10px; line-height:1.5;}
.scene-card p{font-size:14px; line-height:1.8; color:var(--ink-500);}
.scene-card .scene-foot{
  margin-top:16px; padding-top:14px; border-top:1px solid var(--line);
  font-size:13px; color:var(--ink-500);
}

/* ===== 流程 ===== */
.flow-band{background:var(--brand-50); border-radius:var(--r-lg); padding:40px 36px; border:1px solid var(--brand-100);}
.flow-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:18px; margin-top:28px;}
.flow-step{background:#fff; border:1px solid var(--line); border-radius:var(--r-card); padding:20px; position:relative;}
.flow-step .step-idx{
  width:28px; height:28px; border-radius:8px; background:var(--brand-100); color:var(--brand-700);
  display:grid; place-items:center; font-size:13px; font-weight:700;
  font-variant-numeric:tabular-nums; margin-bottom:12px;
}
.flow-step h4{font-size:15px; font-weight:600; color:var(--ink-900); margin-bottom:6px;}
.flow-step p{font-size:13px; line-height:1.75; color:var(--ink-500);}

/* ===== FAQ ===== */
.faq-card{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--r-card);
  box-shadow:var(--shadow-card); padding:6px 24px;
}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:none;}
.faq-q{
  list-style:none; display:flex; align-items:center; justify-content:space-between; gap:16px;
  padding:20px 0 20px 0; font-size:16px; font-weight:600; color:var(--ink-900);
  cursor:pointer; position:relative; transition:color .15s ease;
}
.faq-q::-webkit-details-marker{display:none;}
.faq-q::before{
  content:""; position:absolute; left:-14px; top:18px; bottom:18px; width:3px;
  border-radius:3px; background:transparent; transition:background .18s ease;
}
.faq-item[open] .faq-q{color:var(--brand-700);}
.faq-item[open] .faq-q::before{background:var(--brand-600);}
.faq-icon{position:relative; flex:0 0 20px; width:20px; height:20px; color:var(--ink-500); transition:transform .2s ease,color .18s ease;}
.faq-icon::before,.faq-icon::after{content:""; position:absolute; background:currentColor; border-radius:2px;}
.faq-icon::before{left:4px; right:4px; top:9px; height:2px;}
.faq-icon::after{top:4px; bottom:4px; left:9px; width:2px; transition:opacity .18s ease;}
.faq-item[open] .faq-icon{transform:rotate(180deg); color:var(--brand-600);}
.faq-item[open] .faq-icon::after{opacity:0;}
.faq-a{font-size:15px; line-height:1.85; color:var(--ink-700); padding:0 24px 22px 0;}

/* ===== CTA ===== */
.cta-panel{
  background:var(--brand-50); border:1px solid var(--brand-100); border-radius:var(--r-lg);
  padding:40px 36px; display:grid; grid-template-columns:1.1fr 1fr; gap:32px; align-items:center;
}
.cta-panel h2{font-size:26px; font-weight:700; color:var(--ink-900); line-height:1.3; margin-bottom:10px;}
.cta-panel p{font-size:14px; line-height:1.8; color:var(--ink-500);}
.cta-form{display:flex; gap:10px; flex-wrap:wrap;}
.cta-form input{
  flex:1 1 220px; height:46px; padding:0 14px; border-radius:var(--r-btn);
  border:1px solid #D8E2EE; background:#fff; color:var(--ink-900);
  transition:border-color .15s ease, box-shadow .15s ease;
}
.cta-form input::placeholder{color:#9AAABD;}
.cta-form input:focus{outline:none; border-color:var(--brand-600); box-shadow:0 0 0 4px rgba(26,107,196,.12);}
.cta-note{font-size:12px; color:var(--ink-500); margin-top:12px; grid-column:1 / -1;}
.form-msg{font-size:13px; color:var(--ok); margin-top:10px; grid-column:1 / -1; display:none;}
.form-msg.is-show{display:block;}

/* ===== 页脚 ===== */
.site-footer{background:var(--brand-900); color:#C7D5E6; padding:60px 0 26px; margin-top:auto;}
.footer-grid{display:grid; grid-template-columns:1.7fr 1fr 1fr 1.2fr; gap:32px;}
.footer-brand{display:flex; align-items:center; gap:10px; margin-bottom:14px;}
.footer-brand .brand-mark{background:var(--brand-600);}
.footer-brand .brand-name{color:#fff; font-size:16px; font-weight:600;}
.footer-desc{font-size:14px; line-height:1.85; color:#C7D5E6;}
.footer-col h4{font-size:14px; font-weight:600; color:#fff; margin-bottom:14px;}
.footer-col ul{display:flex; flex-direction:column; gap:8px;}
.footer-col a{font-size:14px; color:#C7D5E6; line-height:1.9;}
.footer-col a:hover{color:#fff;}
.footer-contact li{font-size:14px; line-height:1.9; color:#C7D5E6;}
.footer-bottom{
  display:flex; flex-wrap:wrap; justify-content:space-between; gap:10px;
  margin-top:40px; padding-top:20px; border-top:1px solid rgba(255,255,255,.12);
  font-size:13px; color:#9FB4CC;
}

/* ===== 响应式 ===== */
@media (max-width:1279px){
  :root{--sidebar-w:212px;}
  .scene-grid{grid-template-columns:repeat(2,1fr);}
  .flow-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:1023px){
  .sidebar{
    width:280px; transform:translateX(-100%);
    transition:transform .22s ease; box-shadow:var(--shadow-hover);
  }
  .sidebar.is-open{transform:translateX(0);}
  .drawer-close{display:grid; place-items:center;}
  .main-wrap{margin-left:0; padding-top:64px;}
  .topbar{
    display:flex; position:fixed; top:0; left:0; right:0; height:64px; z-index:50;
    align-items:center; justify-content:space-between; gap:12px;
    padding:0 16px; background:#fff; border-bottom:1px solid var(--line);
  }
  .icon-btn{
    width:44px; height:44px; display:grid; place-items:center; border-radius:10px;
    border:1px solid var(--line); background:#fff; color:var(--ink-700);
  }
  .icon-btn svg{width:20px; height:20px;}
  .topbar-brand{font-size:15px; font-weight:700; color:var(--ink-900);}
  .container{padding:0 24px;}
  .cat-hero h1{font-size:30px;}
  .cta-panel{grid-template-columns:1fr; gap:22px; padding:32px 26px;}
  .footer-grid{grid-template-columns:1fr 1fr; gap:28px;}
  .section{padding:52px 0;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .cat-hero{padding:20px 0 4px;}
  .cat-hero h1{font-size:27px; margin:12px 0 10px;}
  .cat-hero .lead{font-size:16px;}
  .cat-banner img{height:150px;}
  .cat-banner figcaption{left:16px; bottom:14px; font-size:14px;}
  .cat-banner .banner-tag{left:16px; top:14px;}
  .stat-mini{flex:1 1 140px; min-width:0; padding:12px 14px;}
  .tl-item{grid-template-columns:1fr; row-gap:8px;}
  .tl-rail{display:none;}
  .tl-time{flex-direction:row; align-items:baseline; gap:8px; padding-top:0;}
  .tl-date{font-size:16px;}
  .tl-card{padding:18px;}
  .tl-card h3{font-size:17px;}
  .scene-grid{grid-template-columns:1fr;}
  .flow-grid{grid-template-columns:1fr;}
  .flow-band{padding:28px 20px;}
  .section-title{font-size:24px;}
  .section-head{flex-direction:column; align-items:flex-start; gap:10px; margin-bottom:22px;}
  .faq-card{padding:4px 18px;}
  .faq-q{font-size:15px; padding:18px 0;}
  .faq-a{font-size:15px; padding-right:0;}
  .cta-panel{padding:26px 20px;}
  .cta-panel h2{font-size:22px;}
  .cta-form{flex-direction:column;}
  .cta-form .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr; gap:26px;}
  .site-footer{padding:44px 0 22px;}
  .footer-bottom{flex-direction:column;}
  .btn{width:100%;}
  .btn-sm{width:auto;}
  .text-link{width:auto;}
}
@media (max-width:520px){
  .cat-hero h1{font-size:24px;}
  .hero-stats{gap:10px;}
}

/* roulang page: category2 */
:root{
    --ink-900:#101C2B;
    --ink-700:#33465C;
    --ink-500:#64778C;
    --line:#E3EAF2;
    --bg:#F7F9FC;
    --surface:#FFFFFF;
    --brand-900:#0B2A4A;
    --brand-700:#14508C;
    --brand-600:#1A6BC4;
    --brand-100:#E4EFFA;
    --brand-50:#F2F7FD;
    --signal-500:#F28C1B;
    --signal-50:#FFF4E5;
    --ok:#17916B;
    --warn:#C2760A;
    --err:#D64545;
    --radius-card:14px;
    --radius-lg:18px;
    --radius-btn:10px;
    --shadow-card:0 1px 2px rgba(16,28,43,.06),0 10px 24px -14px rgba(16,28,43,.18);
    --shadow-hover:0 2px 4px rgba(16,28,43,.08),0 18px 36px -18px rgba(16,28,43,.26);
    --sidebar-w:248px;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink-700);
    font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
    font-size:16px;
    line-height:1.75;
    font-weight:400;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
  ul,ol{padding:0;list-style:none}
  a{color:var(--brand-600);text-decoration:none;transition:color .16s ease-out}
  a:hover{color:var(--brand-700)}
  img{max-width:100%;display:block}
  button{font-family:inherit;cursor:pointer}
  :focus-visible{outline:2px solid var(--brand-600);outline-offset:2px}
  .tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";font-weight:700}

  /* ---------- App Shell 侧栏 ---------- */
  .app-sidebar{
    position:fixed;top:0;left:0;bottom:0;
    width:var(--sidebar-w);
    background:var(--surface);
    border-right:1px solid var(--line);
    padding:22px 16px 20px;
    display:flex;flex-direction:column;
    gap:18px;
    overflow-y:auto;
    z-index:60;
    transition:transform .24s ease-out;
  }
  .brand{display:flex;align-items:center;gap:10px;min-height:40px}
  .brand-mark{
    width:38px;height:38px;border-radius:11px;
    background:var(--brand-700);color:#fff;
    display:grid;place-items:center;
    font-size:12px;font-weight:700;letter-spacing:.04em;
    flex:0 0 auto;
  }
  .brand-name{font-size:15px;font-weight:700;color:var(--ink-900);line-height:1.25}
  .brand-sub{display:block;font-size:11px;font-weight:500;color:var(--ink-500);letter-spacing:.06em}
  .side-divider{height:1px;background:var(--line);margin:2px 0}
  .nav-label{
    font-size:11px;letter-spacing:.14em;color:var(--ink-500);
    padding:0 12px 6px;font-weight:600;
  }
  .nav-group{display:flex;flex-direction:column;gap:4px}
  .nav-item{
    position:relative;
    display:flex;align-items:center;gap:10px;
    height:44px;padding:0 12px;border-radius:10px;
    color:var(--ink-700);font-size:15px;font-weight:500;
    transition:background .15s ease-out,color .15s ease-out;
  }
  .nav-item:hover{background:var(--brand-50);color:var(--ink-900)}
  .nav-item.is-active{background:var(--brand-100);color:var(--brand-700);font-weight:600}
  .nav-item.is-active::before{
    content:"";position:absolute;left:0;top:10px;bottom:10px;
    width:3px;border-radius:2px;background:var(--brand-600);
  }
  .nav-ico{width:18px;height:18px;flex:0 0 auto;display:inline-flex;color:currentColor}
  .nav-ico svg{width:18px;height:18px}
  .side-card{
    background:var(--brand-50);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    padding:14px;
  }
  .side-card h3{font-size:13px;font-weight:700;color:var(--ink-900);margin-bottom:6px}
  .side-card p{font-size:12px;line-height:1.65;color:var(--ink-500);margin-bottom:10px}
  .side-link{
    display:inline-flex;align-items:center;gap:4px;
    font-size:13px;font-weight:600;color:var(--brand-600);
  }
  .side-link:hover{color:var(--brand-700)}
  .side-link .arw{transition:transform .16s ease-out}
  .side-link:hover .arw{transform:translateX(3px)}

  /* ---------- 顶栏 / 抽屉 ---------- */
  .topbar{
    display:none;
    position:fixed;top:0;left:0;right:0;height:64px;
    background:var(--surface);
    border-bottom:1px solid var(--line);
    align-items:center;gap:12px;
    padding:0 16px;z-index:70;
  }
  .icon-btn{
    width:44px;height:44px;border-radius:10px;
    border:1px solid var(--line);background:var(--surface);
    display:grid;place-items:center;color:var(--ink-900);
    transition:border-color .16s ease-out,color .16s ease-out;
  }
  .icon-btn:hover{border-color:var(--brand-600);color:var(--brand-600)}
  .icon-btn svg{width:20px;height:20px}
  .topbar-brand{
    flex:1;text-align:center;
    font-size:15px;font-weight:700;color:var(--ink-900);
    white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  }
  .drawer-mask{
    position:fixed;inset:0;background:rgba(11,42,74,.45);
    opacity:0;visibility:hidden;transition:opacity .24s ease-out,visibility .24s;
    z-index:55;
  }
  .drawer-mask.is-open{opacity:1;visibility:visible}

  /* ---------- 主区 ---------- */
  .main-shell{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column}
  .container{width:100%;max-width:1120px;margin:0 auto;padding:0 40px}
  .main-shell > main{flex:1 0 auto}

  /* ---------- 面包屑 ---------- */
  .breadcrumb{
    display:flex;flex-wrap:wrap;align-items:center;gap:8px;
    font-size:13px;color:var(--ink-500);
    padding:28px 0 18px;
  }
  .breadcrumb a{color:var(--ink-500)}
  .breadcrumb a:hover{color:var(--brand-600)}
  .breadcrumb .sep{color:#B9C6D6}
  .breadcrumb .cur{color:var(--ink-900);font-weight:600}

  /* ---------- 通用 ---------- */
  .chip{
    display:inline-flex;align-items:center;gap:6px;
    padding:4px 10px;border-radius:999px;
    font-size:12px;font-weight:500;line-height:1.5;
    background:var(--brand-50);color:var(--brand-700);
  }
  .chip-signal{background:var(--signal-50);color:#9A5A05}
  .chip-ok{background:#E9F6F1;color:#0F6E52}
  .chip-mute{background:#EEF2F7;color:var(--ink-500)}
  .btn-primary,.btn-ghost{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 24px;border-radius:var(--radius-btn);
    font-size:15px;font-weight:600;
    border:1px solid transparent;
    transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
  }
  .btn-primary{background:var(--brand-600);color:#fff}
  .btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px)}
  .btn-primary:active{transform:none}
  .btn-ghost{background:var(--surface);border-color:var(--line);color:var(--ink-900)}
  .btn-ghost:hover{border-color:var(--brand-600);color:var(--brand-600)}
  .btn-sm{height:38px;padding:0 16px;font-size:14px}
  .text-link{
    display:inline-flex;align-items:center;gap:5px;
    font-size:14px;font-weight:600;color:var(--brand-600);
  }
  .text-link .arw{transition:transform .16s ease-out}
  .text-link:hover .arw{transform:translateX(4px)}
  .section{padding:56px 0}
  .section-head{margin-bottom:28px}
  .section-eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12px;font-weight:600;letter-spacing:.1em;
    color:var(--brand-700);margin-bottom:10px;
  }
  .section-eyebrow::before{
    content:"";width:18px;height:3px;border-radius:2px;background:var(--brand-600);
  }
  .section-title{font-size:30px;line-height:1.25;font-weight:700;color:var(--ink-900)}
  .section-desc{font-size:15px;line-height:1.75;color:var(--ink-500);margin-top:10px;max-width:760px}

  /* ---------- 分类 Hero ---------- */
  .cat-hero{
    display:grid;grid-template-columns:1.15fr .85fr;gap:32px;
    align-items:center;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    box-shadow:var(--shadow-card);
    padding:32px;
    overflow:hidden;
  }
  .cat-hero h1{
    font-size:34px;line-height:1.28;font-weight:700;color:var(--ink-900);
    margin:14px 0 12px;
  }
  .cat-hero .lead{font-size:15px;line-height:1.8;color:var(--ink-700)}
  .hero-facts{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
  .fact{
    background:var(--brand-50);border:1px solid var(--line);
    border-radius:10px;padding:8px 12px;
    font-size:12px;color:var(--ink-500);line-height:1.5;
  }
  .fact b{display:block;font-size:18px;color:var(--ink-900);font-weight:700;font-variant-numeric:tabular-nums}
  .hero-banner{
    position:relative;height:200px;border-radius:16px;overflow:hidden;
    border:1px solid var(--line);
  }
  .hero-banner img{width:100%;height:100%;object-fit:cover}
  .hero-banner::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(11,42,74,0) 45%,rgba(11,42,74,.55) 100%);
  }
  .hero-banner figcaption{
    position:absolute;left:14px;bottom:12px;z-index:2;
    font-size:12px;color:#fff;font-weight:500;letter-spacing:.02em;
  }

  /* ---------- 标签云 ---------- */
  .tagbar{
    display:flex;flex-wrap:wrap;gap:10px;
    padding:20px;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-card);
    margin-top:28px;
  }
  .tag-filter{
    height:36px;padding:0 16px;border-radius:999px;
    border:1px solid var(--line);background:var(--surface);
    color:var(--ink-700);font-size:13px;font-weight:500;
    transition:background .16s ease-out,color .16s ease-out,border-color .16s ease-out;
  }
  .tag-filter:hover{background:var(--brand-50);border-color:var(--brand-100);color:var(--ink-900)}
  .tag-filter.is-active{background:var(--brand-100);border-color:var(--brand-100);color:var(--brand-700);font-weight:600}

  /* ---------- 双栏卡片墙 ---------- */
  .wall{
    display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
    gap:24px;margin-top:26px;
  }
  .wall-card{
    display:flex;flex-direction:column;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-card);
    overflow:hidden;
    transition:transform .18s ease-out,box-shadow .18s ease-out;
  }
  .wall-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
  .wall-thumb{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--brand-50)}
  .wall-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
  .wall-card:hover .wall-thumb img{transform:scale(1.03)}
  .wall-thumb .badge-abs{
    position:absolute;left:12px;top:12px;
    background:rgba(255,255,255,.94);
    color:var(--brand-700);
    font-size:12px;font-weight:600;
    padding:4px 10px;border-radius:999px;
    backdrop-filter:blur(2px);
  }
  .wall-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
  .wall-body h3{font-size:18px;line-height:1.4;font-weight:600;color:var(--ink-900)}
  .wall-body p{font-size:14px;line-height:1.75;color:var(--ink-500);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .wall-foot{
    margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
    display:flex;align-items:center;justify-content:space-between;gap:10px;
    font-size:13px;color:var(--ink-500);
  }
  .status{
    display:inline-flex;align-items:center;gap:5px;
    font-size:12px;font-weight:500;
  }
  .status::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor}
  .status-ok{color:var(--ok)}
  .status-wait{color:var(--warn)}
  .status-rumor{color:var(--ink-500)}
  .empty-card{
    grid-column:1/-1;
    border:1px dashed var(--line);border-radius:16px;
    padding:36px 20px;text-align:center;background:var(--brand-50);
    color:var(--ink-500);font-size:14px;
  }
  .empty-card svg{width:26px;height:26px;margin:0 auto 10px;color:var(--brand-600)}

  /* ---------- 流程 ---------- */
  .flow{
    display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;
  }
  .flow-step{
    position:relative;
    background:var(--surface);border:1px solid var(--line);
    border-radius:var(--radius-card);padding:20px;
    box-shadow:var(--shadow-card);
  }
  .flow-step .num{
    display:inline-grid;place-items:center;
    width:32px;height:32px;border-radius:9px;
    background:var(--brand-100);color:var(--brand-700);
    font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;
    margin-bottom:12px;
  }
  .flow-step h3{font-size:16px;font-weight:600;color:var(--ink-900);margin-bottom:6px}
  .flow-step p{font-size:13px;line-height:1.7;color:var(--ink-500)}
  .flow-step::after{
    content:"";position:absolute;right:-11px;top:50%;
    width:8px;height:8px;border-top:1px solid var(--line);border-right:1px solid var(--line);
    transform:translateY(-50%) rotate(45deg);
  }
  .flow-step:last-child::after{display:none}

  /* ---------- 口径说明 ---------- */
  .note-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
  .quote-box{
    background:var(--brand-50);
    border-left:3px solid var(--brand-600);
    border-radius:0 12px 12px 0;
    padding:18px 22px;
    font-size:15px;line-height:1.85;color:var(--ink-700);
  }
  .quote-box strong{color:var(--ink-900)}
  .check-list{display:flex;flex-direction:column;gap:14px}
  .check-item{
    display:flex;gap:12px;
    background:var(--surface);border:1px solid var(--line);
    border-radius:var(--radius-card);padding:16px 18px;
    box-shadow:var(--shadow-card);
  }
  .check-item .dot{
    flex:0 0 auto;width:22px;height:22px;border-radius:50%;
    background:var(--brand-100);color:var(--brand-700);
    display:grid;place-items:center;font-size:12px;font-weight:700;
    margin-top:2px;
  }
  .check-item h3{font-size:15px;font-weight:600;color:var(--ink-900);margin-bottom:4px}
  .check-item p{font-size:13px;line-height:1.7;color:var(--ink-500)}

  /* ---------- FAQ ---------- */
  .faq-wrap{
    background:var(--surface);border:1px solid var(--line);
    border-radius:var(--radius-card);box-shadow:var(--shadow-card);
    overflow:hidden;
  }
  .faq-item + .faq-item{border-top:1px solid var(--line)}
  .faq-item summary{
    list-style:none;cursor:pointer;
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 22px;position:relative;
    font-size:16px;font-weight:600;color:var(--ink-900);
    transition:color .16s ease-out,background .16s ease-out;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary:hover{background:var(--brand-50)}
  .faq-item[open] summary{color:var(--brand-700)}
  .faq-item[open] summary::before{
    content:"";position:absolute;left:0;top:14px;bottom:14px;
    width:3px;border-radius:2px;background:var(--brand-600);
  }
  .faq-icon{
    flex:0 0 auto;width:22px;height:22px;position:relative;
    color:var(--brand-600);
    transition:transform .22s ease-out;
  }
  .faq-icon::before,.faq-icon::after{
    content:"";position:absolute;background:currentColor;border-radius:1px;
  }
  .faq-icon::before{left:0;top:10px;width:22px;height:2px}
  .faq-icon::after{left:10px;top:0;width:2px;height:22px;transition:opacity .22s ease-out}
  .faq-item[open] .faq-icon{transform:rotate(180deg)}
  .faq-item[open] .faq-icon::after{opacity:0}
  .faq-answer{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--ink-700)}

  /* ---------- CTA ---------- */
  .cta-band{
    background:var(--brand-50);
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    padding:32px;
    display:grid;grid-template-columns:1.4fr .6fr;gap:24px;align-items:center;
  }
  .cta-band h2{font-size:24px;line-height:1.35;font-weight:700;color:var(--ink-900)}
  .cta-band p{font-size:14px;line-height:1.75;color:var(--ink-500);margin-top:8px}
  .cta-actions{display:flex;flex-direction:column;gap:10px;align-items:stretch}
  .cta-note{font-size:12px;color:var(--ink-500);text-align:center}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--brand-900);color:#C7D5E6;margin-top:64px}
  .site-footer .container{padding-top:52px;padding-bottom:24px}
  .footer-grid{
    display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;
    padding-bottom:36px;
  }
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px}
  .footer-brand .brand-mark{background:rgba(255,255,255,.14);color:#fff}
  .footer-brand .brand-name{color:#fff;font-size:15px;font-weight:700}
  .footer-desc{font-size:14px;line-height:1.8;color:#C7D5E6;max-width:340px}
  .footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:12px}
  .footer-col ul{display:flex;flex-direction:column;gap:8px}
  .footer-col a{font-size:14px;line-height:2;color:#C7D5E6}
  .footer-col a:hover{color:#fff}
  .footer-contact li{font-size:14px;line-height:2;color:#C7D5E6}
  .footer-bottom{
    border-top:1px solid rgba(255,255,255,.12);
    padding-top:18px;
    display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;
    font-size:13px;color:#9FB3C9;
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1279px){
    .cat-hero h1{font-size:30px}
    .section-title{font-size:26px}
    .flow{grid-template-columns:repeat(2,minmax(0,1fr))}
    .flow-step::after{display:none}
  }
  @media (max-width:1023px){
    .app-sidebar{width:280px;transform:translateX(-100%);box-shadow:0 0 32px rgba(11,42,74,.2)}
    .app-sidebar.is-open{transform:translateX(0)}
    .main-shell{margin-left:0}
    .topbar{display:flex}
    .main-shell{padding-top:64px}
    .container{padding:0 24px}
    .cat-hero{grid-template-columns:1fr;gap:22px;padding:24px}
    .hero-banner{height:180px;order:-1}
    .note-grid{grid-template-columns:1fr}
    .cta-band{grid-template-columns:1fr;padding:26px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  }
  @media (max-width:767px){
    .container{padding:0 16px}
    .breadcrumb{padding:18px 0 14px}
    .cat-hero h1{font-size:26px}
    .cat-hero .lead{font-size:15px}
    .section{padding:40px 0}
    .section-title{font-size:22px}
    .wall{grid-template-columns:1fr;gap:18px}
    .flow{grid-template-columns:1fr}
    .tagbar{padding:16px;gap:8px}
    .cta-actions{width:100%}
    .btn-primary,.btn-ghost{width:100%}
    .footer-grid{grid-template-columns:1fr;gap:24px}
    .footer-bottom{flex-direction:column}
    .wall-body h3{font-size:17px}
    .faq-item summary{font-size:15px;padding:16px 18px}
    .faq-answer{padding:0 18px 18px}
  }
  @media (max-width:519px){
    .hero-facts{gap:8px}
    .fact{flex:1 1 46%}
    .topbar-brand{font-size:14px}
  }

/* roulang page: category3 */
:root{
      --ink-900:#101C2B;
      --ink-700:#33465C;
      --ink-500:#64778C;
      --line:#E3EAF2;
      --bg:#F7F9FC;
      --surface:#FFFFFF;
      --brand-900:#0B2A4A;
      --brand-700:#14508C;
      --brand-600:#1A6BC4;
      --brand-100:#E4EFFA;
      --brand-50:#F2F7FD;
      --signal-500:#F28C1B;
      --signal-50:#FFF4E5;
      --ok:#17916B;
      --warn:#C2760A;
      --error:#D64545;
      --shadow-card:0 1px 2px rgba(16,28,43,.06), 0 10px 24px -14px rgba(16,28,43,.18);
      --shadow-hover:0 2px 4px rgba(16,28,43,.08), 0 18px 36px -18px rgba(16,28,43,.26);
      --r-card:14px;
      --r-lg:18px;
      --r-btn:10px;
      --sidebar-w:248px;
    }

    *,*::before,*::after{box-sizing:border-box}
    html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
    html body{
      margin:0;
      padding:0;
      font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
      font-size:16px;
      line-height:1.75;
      color:var(--ink-700);
      background:var(--bg);
      -webkit-font-smoothing:antialiased;
    }
    h1,h2,h3,h4,p,figure,ul,ol,dl{margin:0}
    ul,ol{padding:0;list-style:none}
    img{display:block;max-width:100%}
    a{color:var(--brand-600);text-decoration:none;transition:color .18s ease}
    a:hover{color:var(--brand-700)}
    html button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
    :focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:4px}
    .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

    /* 布局骨架 */
    .layout{display:flex;min-height:100vh}
    .sidebar{
      position:fixed;
      top:0;left:0;bottom:0;
      width:var(--sidebar-w);
      background:var(--surface);
      border-right:1px solid var(--line);
      display:flex;
      flex-direction:column;
      padding:20px 16px 24px;
      overflow-y:auto;
      z-index:60;
    }
    .page-main{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column;width:calc(100% - var(--sidebar-w))}
    .container{width:100%;max-width:1120px;margin:0 auto;padding:0 40px}
    .badge-mark{display:inline-flex;align-items:center;justify-content:center}

    /* 品牌 */
    .brand{display:flex;align-items:center;gap:10px;height:40px;padding:0 8px;margin-bottom:22px}
    .brand-mark{
      width:34px;height:34px;border-radius:10px;
      background:var(--brand-700);color:#fff;
      display:inline-flex;align-items:center;justify-content:center;
      font-size:13px;font-weight:700;letter-spacing:.5px;flex:0 0 auto;
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.25;min-width:0}
    .brand-name{font-size:14px;font-weight:700;color:var(--ink-900);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .brand-sub{font-size:11px;color:var(--ink-500);letter-spacing:.4px}

    /* 侧栏导航 */
    .nav-label{font-size:11px;color:var(--ink-500);letter-spacing:.6px;padding:0 10px;margin-bottom:8px}
    .nav-group{display:flex;flex-direction:column;gap:4px}
    .nav-item{
      display:flex;align-items:center;gap:10px;
      height:44px;padding:0 12px;
      border-radius:10px;
      border-left:3px solid transparent;
      font-size:15px;color:var(--ink-700);
      transition:background .15s ease,color .15s ease,border-color .15s ease;
    }
    .nav-item:hover{background:var(--brand-50);color:var(--ink-900)}
    .nav-item.is-active{
      background:var(--brand-100);
      color:var(--brand-700);
      font-weight:600;
      border-left-color:var(--brand-600);
    }
    .nav-ico{width:18px;height:18px;display:inline-flex;align-items:center;justify-content:center;opacity:.85;flex:0 0 auto}
    .nav-ico svg{width:100%;height:100%}
    .nav-divider{height:1px;background:var(--line);margin:16px 8px}

    .side-card{
      margin-top:auto;
      background:var(--brand-50);
      border:1px solid var(--line);
      border-radius:12px;
      padding:14px;
    }
    .side-card p{font-size:13px;line-height:1.75;color:var(--ink-700)}
    .side-card .side-link{
      display:inline-flex;align-items:center;gap:4px;
      margin-top:10px;font-size:13px;font-weight:600;color:var(--brand-600);
    }
    .side-card .side-link:hover{color:var(--brand-700)}

    /* 移动端顶栏与抽屉 */
    .topbar{
      display:none;position:sticky;top:0;z-index:70;
      height:64px;background:var(--surface);border-bottom:1px solid var(--line);
      align-items:center;justify-content:space-between;gap:12px;padding:0 16px;
    }
    .menu-btn{
      width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
      border-radius:10px;color:var(--ink-900);background:var(--brand-50);border:1px solid var(--line);
    }
    .menu-btn svg{width:22px;height:22px}
    .topbar-brand{display:flex;align-items:center;gap:8px;min-width:0}
    .topbar-brand .brand-mark{width:30px;height:30px;font-size:12px}
    .topbar-brand span{font-size:14px;font-weight:700;color:var(--ink-900);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .topbar-cta{
      height:36px;padding:0 14px;border-radius:999px;
      background:var(--brand-600);color:#fff;font-size:13px;font-weight:600;
      display:inline-flex;align-items:center;white-space:nowrap;
    }
    .topbar-cta:hover{background:var(--brand-700);color:#fff}

    .drawer-mask{
      position:fixed;inset:0;background:rgba(11,42,74,.45);
      opacity:0;visibility:hidden;transition:opacity .22s ease,visibility .22s ease;z-index:80;
    }
    .drawer-mask.is-open{opacity:1;visibility:visible}
    .drawer{
      position:fixed;top:0;left:0;bottom:0;width:280px;max-width:86vw;
      background:var(--surface);z-index:90;
      transform:translateX(-100%);transition:transform .26s ease;
      display:flex;flex-direction:column;padding:18px 14px 22px;overflow-y:auto;
    }
    .drawer.is-open{transform:translateX(0)}
    .drawer .nav-item{height:48px}
    .drawer-close{
      align-self:flex-end;width:40px;height:40px;border-radius:10px;
      display:inline-flex;align-items:center;justify-content:center;color:var(--ink-700);
      border:1px solid var(--line);margin-bottom:10px;
    }
    .drawer-close svg{width:18px;height:18px}

    /* 面包屑 */
    .breadcrumb{
      display:flex;flex-wrap:wrap;align-items:center;gap:8px;
      font-size:13px;color:var(--ink-500);padding-top:26px;
    }
    .breadcrumb a{color:var(--ink-500)}
    .breadcrumb a:hover{color:var(--brand-600)}
    .breadcrumb .sep{color:#B6C4D4}
    .breadcrumb .current{color:var(--ink-900);font-weight:600}

    /* Hero */
    .cat-hero{padding:22px 0 0}
    .hero-panel{
      display:grid;grid-template-columns:1.25fr 1fr;gap:42px;align-items:center;
      background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
      box-shadow:var(--shadow-card);
      padding:34px 36px;
      position:relative;overflow:hidden;
    }
    .hero-panel::before{
      content:"";position:absolute;inset:0 0 auto 0;height:4px;
      background:linear-gradient(90deg,var(--brand-600),var(--brand-100));
    }
    .chip{
      display:inline-flex;align-items:center;gap:6px;
      padding:4px 10px;border-radius:999px;
      font-size:12px;font-weight:500;line-height:1.6;
      background:var(--brand-50);color:var(--brand-700);
    }
    .chip-signal{background:var(--signal-50);color:#9A5A05}
    .chip-line{background:#fff;border:1px solid var(--line);color:var(--ink-700)}
    .hero-title{
      font-size:34px;line-height:1.26;font-weight:700;color:var(--ink-900);
      letter-spacing:-.3px;margin:14px 0 12px;
    }
    .hero-lead{font-size:16px;line-height:1.8;color:var(--ink-700);max-width:560px}
    .hero-meta{
      display:flex;flex-wrap:wrap;align-items:center;gap:10px;
      margin-top:18px;font-size:13px;color:var(--ink-500);
    }
    .hero-meta .dot{width:4px;height:4px;border-radius:50%;background:#C4D1DF}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
    .hero-figure{
      position:relative;border-radius:16px;overflow:hidden;
      border:1px solid var(--line);background:var(--brand-50);aspect-ratio:16/11;
    }
    .hero-figure img{width:100%;height:100%;object-fit:cover}
    .hero-figure figcaption{
      position:absolute;left:12px;bottom:12px;
      background:rgba(11,42,74,.72);color:#fff;
      font-size:12px;padding:4px 10px;border-radius:999px;
    }

    /* 按钮 */
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:6px;
      height:46px;padding:0 24px;border-radius:var(--r-btn);
      font-size:15px;font-weight:600;line-height:1;
      transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
    }
    .btn-primary{background:var(--brand-600);color:#fff;box-shadow:0 8px 18px -12px rgba(26,107,196,.9)}
    .btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px)}
    .btn-primary:active{transform:translateY(0)}
    .btn-ghost{background:#fff;color:var(--ink-900);border:1px solid var(--line)}
    .btn-ghost:hover{border-color:var(--brand-600);color:var(--brand-600)}
    .btn-sm{height:40px;padding:0 16px;font-size:14px}
    .text-link{
      display:inline-flex;align-items:center;gap:4px;
      font-size:14px;font-weight:600;color:var(--brand-600);
    }
    .text-link .arrow{transition:transform .18s ease}
    .text-link:hover .arrow{transform:translateX(4px)}

    /* 区块 */
    .section{padding:64px 0 0}
    .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;flex-wrap:wrap}
    .section-title{font-size:28px;line-height:1.3;font-weight:700;color:var(--ink-900)}
    .section-sub{font-size:14px;color:var(--ink-500);margin-top:8px;max-width:620px}
    .eyebrow{font-size:12px;font-weight:600;letter-spacing:1.4px;color:var(--brand-700);text-transform:uppercase}

    /* 指标条 */
    .metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .metric{
      background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
      padding:18px 18px 16px;box-shadow:var(--shadow-card);
    }
    .metric .num{
      font-size:30px;font-weight:700;color:var(--ink-900);line-height:1.1;
      font-variant-numeric:tabular-nums;letter-spacing:-.5px;
    }
    .metric .num small{font-size:12px;font-weight:500;color:var(--ink-500);margin-left:4px}
    .metric .cap{font-size:13px;color:var(--ink-500);margin-top:8px}
    .metric .trend{
      display:inline-flex;align-items:center;gap:4px;margin-top:10px;
      font-size:12px;font-weight:600;padding:2px 8px;border-radius:999px;
    }
    .trend-up{background:rgba(23,145,107,.1);color:var(--ok)}
    .trend-steady{background:var(--brand-50);color:var(--brand-700)}

    /* Zigzag 主体 */
    .zig-list{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-card);padding:8px 32px}
    .zig-row{display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:center;padding:34px 0;border-top:1px solid var(--line)}
    .zig-row:first-child{border-top:0}
    .zig-row.is-reverse .zig-media{order:2}
    .zig-media{
      border-radius:12px;overflow:hidden;border:1px solid var(--line);
      background:var(--brand-50);aspect-ratio:16/10;position:relative;
    }
    .zig-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
    .zig-row:hover .zig-media img{transform:scale(1.03)}
    .zig-body{min-width:0}
    .zig-index{
      font-size:13px;font-weight:700;letter-spacing:1.6px;color:var(--brand-600);
      font-variant-numeric:tabular-nums;
    }
    .zig-title{font-size:21px;line-height:1.4;font-weight:600;color:var(--ink-900);margin:8px 0 10px}
    .zig-text{font-size:15px;line-height:1.85;color:var(--ink-700)}
    .zig-points{display:flex;flex-direction:column;gap:8px;margin:14px 0 16px}
    .zig-points li{position:relative;padding-left:16px;font-size:14px;line-height:1.8;color:var(--ink-700)}
    .zig-points li::before{
      content:"";position:absolute;left:0;top:.7em;width:6px;height:6px;border-radius:50%;background:var(--brand-600);
    }
    .zig-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--ink-500);margin-bottom:14px}
    .zig-meta .dot{width:4px;height:4px;border-radius:50%;background:#C4D1DF}

    /* FAQ */
    .faq-list{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-card);overflow:hidden}
    .faq-item + .faq-item{border-top:1px solid var(--line)}
    .faq-q{
      width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
      padding:18px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--ink-900);
      position:relative;transition:color .16s ease;
    }
    .faq-q::before{
      content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
      border-radius:0 3px 3px 0;background:var(--brand-600);opacity:0;transition:opacity .16s ease;
    }
    .faq-q:hover{color:var(--brand-700)}
    .faq-item.is-open .faq-q{color:var(--brand-700)}
    .faq-item.is-open .faq-q::before{opacity:1}
    .faq-ic{
      flex:0 0 auto;width:26px;height:26px;border-radius:50%;
      border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;
      color:var(--brand-600);transition:transform .22s ease,background .2s ease;
    }
    .faq-ic svg{width:14px;height:14px}
    .faq-item.is-open .faq-ic{transform:rotate(180deg);background:var(--brand-50)}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
    .faq-item.is-open .faq-a{max-height:460px}
    .faq-a-inner{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--ink-700)}

    /* CTA 条 */
    .cta-band{
      margin-top:64px;
      background:linear-gradient(180deg,var(--brand-50),#FFFFFF);
      border:1px solid var(--line);border-radius:var(--r-lg);
      padding:34px 36px;box-shadow:var(--shadow-card);
      display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
    }
    .cta-band h2{font-size:24px;line-height:1.35;font-weight:700;color:var(--ink-900)}
    .cta-band p{font-size:14px;line-height:1.8;color:var(--ink-700);margin-top:8px;max-width:560px}
    .cta-actions{display:flex;flex-wrap:wrap;gap:12px}

    /* 图片占位 */
    .is-hidden{display:none !important}
    .media-fallback{display:flex;align-items:center;justify-content:center;background:var(--brand-50)}
    .media-fallback::after{content:"图片正在加载";font-size:13px;color:var(--ink-500)}

    /* 页脚 */
    .site-footer{background:var(--brand-900);color:#C7D5E6;margin-top:72px}
    .site-footer .container{padding-top:52px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.25fr;gap:36px;padding-bottom:38px}
    .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
    .footer-brand .brand-mark{background:rgba(255,255,255,.12);color:#fff}
    .footer-brand .brand-name{color:#fff;font-size:16px;font-weight:700;white-space:normal}
    .footer-desc{font-size:14px;line-height:1.9;color:#9FB3C8;max-width:330px}
    .footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:12px}
    .footer-col ul{display:flex;flex-direction:column;gap:8px}
    .footer-col a{font-size:14px;color:#C7D5E6}
    .footer-col a:hover{color:#fff}
    .footer-contact li{font-size:14px;line-height:1.9;color:#C7D5E6}
    .footer-bottom{
      border-top:1px solid rgba(255,255,255,.12);
      padding:18px 0 22px;display:flex;justify-content:space-between;gap:12px;
      flex-wrap:wrap;font-size:13px;color:#8FA6BE;
    }

    /* 响应式 */
    @media (max-width:1279px){
      .hero-title{font-size:32px}
      .zig-row{gap:34px}
      .zig-list{padding:8px 24px}
    }
    @media (max-width:1023px){
      .sidebar{display:none}
      .page-main{margin-left:0;width:100%}
      .topbar{display:flex}
      .container{padding:0 24px}
      .hero-panel{grid-template-columns:1fr;gap:24px;padding:28px 24px}
      .hero-figure{aspect-ratio:16/9;order:-1}
      .metric-grid{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
      .section{padding:52px 0 0}
    }
    @media (max-width:767px){
      .container{padding:0 16px}
      .hero-title{font-size:28px}
      .hero-lead{font-size:15px}
      .hero-actions{flex-direction:column;align-items:stretch}
      .hero-actions .btn{width:100%}
      .zig-row{grid-template-columns:1fr;gap:18px;padding:26px 0}
      .zig-row.is-reverse .zig-media{order:0}
      .zig-list{padding:4px 18px}
      .zig-title{font-size:19px}
      .section-title{font-size:23px}
      .faq-q{font-size:15px;padding:16px 18px}
      .faq-a-inner{padding:0 18px 18px}
      .cta-band{padding:24px 20px;margin-top:48px}
      .cta-band h2{font-size:20px}
      .cta-actions{width:100%;flex-direction:column;align-items:stretch}
      .cta-actions .btn{width:100%}
      .footer-grid{grid-template-columns:1fr;gap:24px}
      .footer-bottom{flex-direction:column;gap:6px}
    }
    @media (max-width:519px){
      .metric-grid{grid-template-columns:1fr}
      .hero-title{font-size:26px}
      .breadcrumb{padding-top:18px}
    }

/* roulang page: category4 */
:root{
  --ink-900:#101C2B;
  --ink-700:#33465C;
  --ink-500:#64778C;
  --line:#E3EAF2;
  --bg:#F7F9FC;
  --surface:#FFFFFF;
  --brand-900:#0B2A4A;
  --brand-700:#14508C;
  --brand-600:#1A6BC4;
  --brand-100:#E4EFFA;
  --brand-50:#F2F7FD;
  --signal-500:#F28C1B;
  --signal-50:#FFF4E5;
  --success:#17916B;
  --warn:#C2760A;
  --error:#D64545;
  --shadow-card:0 1px 2px rgba(16,28,43,.06),0 10px 24px -14px rgba(16,28,43,.18);
  --shadow-hover:0 2px 4px rgba(16,28,43,.08),0 18px 36px -18px rgba(16,28,43,.26);
  --r-card:14px;
  --r-lg:18px;
  --r-btn:10px;
  --sidebar-w:248px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-700);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",sans-serif;
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:var(--brand-600);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-700);}
img{max-width:100%;display:block;border-radius:12px;}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--ink-900);}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:6px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}
.container{width:100%;max-width:1120px;margin:0 auto;padding:0 40px;}

/* ============ App Shell ============ */
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  background:var(--surface);
  border-right:1px solid var(--line);
  overflow-y:auto;
  padding:22px 16px 24px;
  display:flex;
  flex-direction:column;
  gap:20px;
  z-index:60;
}
.brand{display:flex;align-items:center;gap:10px;padding:2px 8px 0;}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:11px;
  background:var(--brand-700);
  color:#fff;
  font-size:15px;font-weight:700;letter-spacing:.5px;
  font-variant-numeric:tabular-nums;
}
.brand-text{display:flex;flex-direction:column;line-height:1.3;}
.brand-name{font-size:15px;font-weight:700;color:var(--ink-900);letter-spacing:.2px;}
.brand-tag{font-size:12px;color:var(--ink-500);}
.nav-label{
  font-size:12px;
  font-weight:600;
  color:var(--ink-500);
  letter-spacing:.08em;
  padding:0 12px 8px;
}
.nav-group{display:flex;flex-direction:column;gap:4px;}
.nav-item{
  position:relative;
  display:flex;
  align-items:center;
  gap:10px;
  height:44px;
  padding:0 14px;
  border-radius:10px;
  color:var(--ink-700);
  font-size:15px;
  font-weight:500;
  transition:background .15s ease,color .15s ease;
}
.nav-item:hover{background:var(--brand-50);color:var(--ink-900);}
.nav-item.is-active{background:var(--brand-100);color:var(--brand-700);font-weight:600;}
.nav-item.is-active::before{
  content:"";
  position:absolute;left:0;top:50%;
  transform:translateY(-50%);
  width:3px;height:22px;border-radius:2px;
  background:var(--brand-600);
}
.nav-ico{display:inline-flex;width:18px;height:18px;flex:0 0 18px;color:currentColor;}
.nav-ico svg{width:100%;height:100%;}
.sidebar-divider{height:1px;background:var(--line);margin:0 4px;}
.sidebar-card{
  background:var(--brand-50);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:16px;
  margin-top:auto;
}
.sidebar-card-title{font-size:14px;font-weight:700;color:var(--ink-900);margin-bottom:6px;}
.sidebar-card-desc{font-size:13px;color:var(--ink-500);line-height:1.6;margin-bottom:10px;}
.sidebar-card-link{font-size:13px;font-weight:600;color:var(--brand-600);display:inline-flex;align-items:center;gap:4px;}
.sidebar-card-link span{transition:transform .18s ease;}
.sidebar-card-link:hover span{transform:translateX(4px);}

.main-area{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column;}

/* 移动端顶部栏与抽屉 */
.mobile-topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;
  height:64px;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  align-items:center;
  justify-content:space-between;
  gap:8px;
  padding:0 12px;
  z-index:70;
}
.topbar-btn{
  width:44px;height:44px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;
  color:var(--ink-900);
  transition:background .15s ease;
}
.topbar-btn:hover{background:var(--brand-50);}
.topbar-brand{font-size:15px;font-weight:700;color:var(--ink-900);}
.topbar-cta{
  height:40px;
  padding:0 14px;
  display:inline-flex;align-items:center;
  border-radius:var(--r-btn);
  background:var(--brand-600);
  color:#fff;
  font-size:14px;font-weight:600;
}
.topbar-cta:hover{background:var(--brand-700);color:#fff;}
.drawer{
  position:fixed;top:0;left:0;bottom:0;
  width:280px;
  background:var(--surface);
  z-index:90;
  transform:translateX(-100%);
  transition:transform .24s ease;
  overflow-y:auto;
  padding:18px 14px 24px;
  display:flex;flex-direction:column;gap:18px;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(11,42,74,.45);
  z-index:80;
  opacity:0;visibility:hidden;
  transition:opacity .2s ease,visibility .2s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* ============ 通用组件 ============ */
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;
  height:46px;padding:0 24px;
  border-radius:var(--r-btn);
  background:var(--brand-600);
  color:#fff;
  font-size:15px;font-weight:600;
  transition:background .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-hover);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-secondary{
  display:inline-flex;align-items:center;justify-content:center;
  height:46px;padding:0 24px;
  border-radius:var(--r-btn);
  background:var(--surface);
  border:1px solid var(--line);
  color:var(--ink-900);
  font-size:15px;font-weight:600;
  transition:border-color .18s ease,color .18s ease,transform .18s ease;
}
.btn-secondary:hover{border-color:var(--brand-600);color:var(--brand-600);transform:translateY(-1px);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand-600);
}
.btn-ghost span{transition:transform .18s ease;}
.btn-ghost:hover span{transform:translateX(4px);}
.chip{
  display:inline-flex;align-items:center;
  padding:4px 10px;
  border-radius:999px;
  font-size:12px;font-weight:500;
  background:var(--brand-50);
  color:var(--brand-700);
  white-space:nowrap;
}
.chip-signal{background:var(--signal-50);color:#9A5A05;}
.card-base{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
}
.section{padding:56px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:28px;
  flex-wrap:wrap;
}
.section-title{
  font-size:30px;
  font-weight:700;
  color:var(--ink-900);
  line-height:1.25;
  letter-spacing:-.2px;
}
.section-title::before{
  content:"";
  display:inline-block;
  width:4px;height:22px;
  border-radius:2px;
  background:var(--brand-600);
  margin-right:10px;
  vertical-align:-3px;
}
.section-sub{font-size:14px;color:var(--ink-500);margin-top:10px;line-height:1.7;}
.section-cap{font-size:13px;color:var(--ink-500);}

/* ============ 页面主体 ============ */
.page-main{flex:1 0 auto;padding-bottom:8px;}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:6px;
  font-size:13px;color:var(--ink-500);
  padding:26px 0 0;
}
.breadcrumb a{color:var(--ink-500);}
.breadcrumb a:hover{color:var(--brand-600);}
.breadcrumb .sep{color:#B7C4D3;}

.hero{padding:20px 0 8px;}
.hero-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:40px;
  align-items:center;
}
.hero-copy .chip{margin-bottom:16px;}
.hero h1{
  font-size:34px;
  line-height:1.3;
  font-weight:700;
  color:var(--ink-900);
  letter-spacing:-.3px;
}
.hero-sub{
  font-size:16px;
  color:var(--ink-700);
  margin-top:16px;
  line-height:1.75;
  max-width:520px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}
.hero-meta{
  font-size:13px;
  color:var(--ink-500);
  margin-top:16px;
  padding-top:16px;
  border-top:1px solid var(--line);
  max-width:520px;
}
.hero-media{
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  background:var(--brand-50);
}
.hero-media img{width:100%;height:260px;object-fit:cover;border-radius:0;}

/* 指标卡 */
.metric-row{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
  margin-top:8px;
}
.metric{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  padding:18px 18px 16px;
  transition:box-shadow .18s ease,transform .18s ease;
}
.metric:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.metric-value{
  font-size:30px;
  font-weight:700;
  color:var(--ink-900);
  line-height:1.1;
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum";
}
.metric-value .unit{font-size:12px;font-weight:500;color:var(--ink-500);margin-left:3px;}
.metric-desc{font-size:13px;color:var(--ink-500);margin-top:8px;}
.metric-badge{
  display:inline-flex;align-items:center;
  margin-top:10px;
  padding:2px 8px;
  border-radius:999px;
  font-size:12px;font-weight:600;
  background:var(--brand-50);color:var(--brand-700);
  font-variant-numeric:tabular-nums;
}
.metric-badge.warn{background:var(--signal-50);color:#9A5A05;}

/* 排行表 */
.table-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
.rank-table{width:100%;border-collapse:collapse;min-width:760px;}
.rank-table thead th{
  background:var(--brand-50);
  color:var(--ink-700);
  font-size:13px;
  font-weight:600;
  text-align:left;
  padding:14px 16px;
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.rank-table tbody td{
  padding:14px 16px;
  border-bottom:1px solid var(--line);
  font-size:15px;
  color:var(--ink-700);
  vertical-align:middle;
}
.rank-table tbody tr:last-child td{border-bottom:0;}
.rank-table tbody tr{transition:background .15s ease;}
.rank-table tbody tr:hover{background:var(--brand-50);}
.rank-table .num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
.rank-table .team{font-weight:600;color:var(--ink-900);}
.rank-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:28px;height:28px;
  border-radius:8px;
  background:var(--brand-50);
  color:var(--brand-700);
  font-size:14px;font-weight:700;
  font-variant-numeric:tabular-nums;
}
.rank-no.top{background:var(--signal-50);color:#9A5A05;}
.trend{
  display:inline-flex;align-items:center;gap:4px;
  font-size:14px;font-weight:600;
  font-variant-numeric:tabular-nums;
}
.trend-up{color:var(--success);}
.trend-down{color:var(--error);}
.trend-flat{color:var(--ink-500);}
.table-note{
  font-size:13px;
  color:var(--ink-500);
  padding:14px 16px;
  background:var(--brand-50);
  border-top:1px solid var(--line);
  line-height:1.7;
}

/* 变化条 */
.bars-panel{padding:8px 24px 20px;}
.bar-row{
  display:grid;
  grid-template-columns:180px 1fr 110px;
  align-items:center;
  gap:18px;
  padding:16px 0;
  border-bottom:1px dashed var(--line);
}
.bar-row:last-child{border-bottom:0;}
.bar-label{font-size:14px;font-weight:600;color:var(--ink-900);}
.bar-label small{display:block;font-size:12px;font-weight:400;color:var(--ink-500);margin-top:2px;}
.bar-track{
  position:relative;
  height:10px;
  border-radius:999px;
  background:var(--line);
  overflow:hidden;
}
.bar-fill{
  height:100%;
  border-radius:999px;
  background:var(--brand-600);
  transition:width .5s ease;
}
.bar-fill.signal{background:var(--signal-500);}
.fill-a{width:82%;}
.fill-b{width:71%;}
.fill-c{width:64%;}
.fill-d{width:53%;}
.bar-value{
  text-align:right;
  font-size:16px;
  font-weight:700;
  color:var(--ink-900);
  font-variant-numeric:tabular-nums;
}
.bar-value span{font-size:12px;font-weight:500;color:var(--ink-500);margin-left:2px;}

/* 说明双栏 */
.explain-grid{
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:20px;
}
.explain-card{padding:26px 24px;}
.explain-card h3{
  font-size:20px;
  font-weight:700;
  color:var(--ink-900);
  margin-bottom:14px;
  line-height:1.4;
}
.explain-card p{font-size:15px;line-height:1.85;color:var(--ink-700);}
.explain-list{margin-top:16px;display:flex;flex-direction:column;gap:12px;}
.explain-list li{
  position:relative;
  padding-left:18px;
  font-size:15px;
  line-height:1.75;
  color:var(--ink-700);
}
.explain-list li::before{
  content:"";
  position:absolute;left:0;top:11px;
  width:6px;height:6px;border-radius:50%;
  background:var(--brand-600);
}
.explain-side{
  background:var(--brand-50);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
}
.explain-side h3{font-size:18px;font-weight:700;color:var(--ink-900);margin-bottom:12px;}
.explain-side p{font-size:14px;color:var(--ink-700);line-height:1.8;}
.explain-side .divider{height:1px;background:var(--line);margin:18px 0;}
.explain-side .kv{display:flex;justify-content:space-between;font-size:14px;padding:7px 0;color:var(--ink-700);}
.explain-side .kv strong{color:var(--ink-900);font-variant-numeric:tabular-nums;}

/* FAQ */
.faq-list{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-q{
  position:relative;
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  text-align:left;
  padding:18px 22px;
  font-size:16px;
  font-weight:600;
  color:var(--ink-900);
  transition:color .18s ease,background .18s ease;
}
.faq-q:hover{background:var(--brand-50);}
.faq-item.is-open .faq-q{color:var(--brand-700);}
.faq-item.is-open .faq-q::before{
  content:"";
  position:absolute;left:0;top:50%;
  transform:translateY(-50%);
  width:3px;height:24px;border-radius:2px;
  background:var(--brand-600);
}
.faq-icon{
  flex:0 0 22px;
  width:22px;height:22px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;
  background:var(--brand-50);
  color:var(--brand-700);
  font-size:15px;
  font-weight:700;
  transition:transform .22s ease,background .18s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(180deg);background:var(--brand-100);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s ease;
}
.faq-a-inner{
  padding:0 22px 20px;
  font-size:15px;
  line-height:1.8;
  color:var(--ink-700);
}

/* CTA */
.cta-band{
  background:linear-gradient(180deg,var(--brand-50) 0%,#EAF2FB 100%);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:36px 36px;
  display:grid;
  grid-template-columns:1fr .85fr;
  gap:32px;
  align-items:center;
}
.cta-band h2{font-size:24px;font-weight:700;color:var(--ink-900);line-height:1.35;}
.cta-band p{font-size:15px;color:var(--ink-700);margin-top:10px;line-height:1.75;}
.cta-form{display:flex;flex-direction:column;gap:12px;}
.cta-form-row{display:flex;gap:10px;}
.cta-form input{
  flex:1 1 auto;
  height:46px;
  padding:0 14px;
  border:1px solid #D8E2EE;
  border-radius:var(--r-btn);
  background:#fff;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.cta-form input:focus{
  outline:none;
  border-color:var(--brand-600);
  box-shadow:0 0 0 4px rgba(26,107,196,.12);
}
.cta-form .btn-primary{flex:0 0 auto;}
.cta-note{font-size:12px;color:var(--ink-500);}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--brand-900);
  color:#C7D5E6;
  margin-top:56px;
  padding:56px 0 0;
  flex:0 0 auto;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);width:36px;height:36px;flex:0 0 36px;border-radius:10px;font-size:14px;}
.footer-brand .brand-name{font-size:16px;font-weight:700;color:#fff;}
.footer-desc{font-size:14px;line-height:1.85;color:#C7D5E6;max-width:340px;}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px;}
.footer-col ul{display:flex;flex-direction:column;gap:9px;}
.footer-col a{font-size:14px;color:#C7D5E6;line-height:1.6;}
.footer-col a:hover{color:#fff;}
.footer-contact li{font-size:14px;color:#C7D5E6;line-height:1.7;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  font-size:13px;
  color:#9FB2C8;
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  :root{--sidebar-w:212px;}
  .brand-name{font-size:14px;}
  .nav-item{font-size:14px;height:42px;}
  .container{padding:0 24px;}
}
@media (max-width:1023px){
  .sidebar{display:none;}
  .main-area{margin-left:0;padding-top:64px;}
  .mobile-topbar{display:flex;}
  .hero-grid{grid-template-columns:1fr;gap:24px;}
  .hero-media img{height:200px;}
  .metric-row{grid-template-columns:repeat(2,1fr);}
  .explain-grid{grid-template-columns:1fr;}
  .cta-band{grid-template-columns:1fr;padding:28px 24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .section-title{font-size:26px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .hero h1{font-size:28px;}
  .hero-sub{font-size:15px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn-primary,
  .hero-actions .btn-secondary{width:100%;}
  .metric-row{grid-template-columns:1fr;}
  .section{padding:40px 0;}
  .section-title{font-size:23px;}
  .section-head{margin-bottom:20px;}
  .bar-row{grid-template-columns:1fr;gap:8px;}
  .bar-value{text-align:left;}
  .bars-panel{padding:8px 18px 16px;}
  .explain-card{padding:20px 18px;}
  .faq-q{font-size:15px;padding:16px 18px;}
  .faq-a-inner{padding:0 18px 18px;font-size:15px;}
  .cta-form-row{flex-direction:column;}
  .cta-form .btn-primary{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .breadcrumb{font-size:12px;padding-top:18px;}
}
@media (max-width:519px){
  .hero-media img{height:160px;}
  .metric-value{font-size:26px;}
}

/* roulang page: category5 */
:root{
    --ink-900:#101C2B;
    --ink-700:#33465C;
    --ink-500:#64778C;
    --line:#E3EAF2;
    --bg:#F7F9FC;
    --surface:#FFFFFF;
    --brand-900:#0B2A4A;
    --brand-700:#14508C;
    --brand-600:#1A6BC4;
    --brand-100:#E4EFFA;
    --brand-50:#F2F7FD;
    --signal-500:#F28C1B;
    --signal-50:#FFF4E5;
    --ok:#17916B;
    --warn:#C2760A;
    --err:#D64545;
    --r-card:14px;
    --r-lg:18px;
    --shadow-card:0 1px 2px rgba(16,28,43,.06), 0 10px 24px -14px rgba(16,28,43,.18);
    --shadow-hover:0 2px 4px rgba(16,28,43,.08), 0 18px 36px -18px rgba(16,28,43,.26);
    --sidebar:248px;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink-700);
    font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
    font-size:16px;
    line-height:1.75;
    font-weight:400;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
  ul,ol{padding:0;list-style:none;}
  a{color:var(--brand-600);text-decoration:none;transition:color .15s ease-out;}
  a:hover{color:var(--brand-700);}
  img{max-width:100%;display:block;}
  button{font-family:inherit;}
  a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
    outline:2px solid var(--brand-600);
    outline-offset:2px;
  }
  .num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

  /* ===== App Shell ===== */
  .sidebar{
    position:fixed;
    inset:0 auto 0 0;
    width:var(--sidebar);
    background:var(--surface);
    border-right:1px solid var(--line);
    padding:22px 16px 26px;
    overflow-y:auto;
    z-index:50;
    display:flex;
    flex-direction:column;
    gap:20px;
  }
  .brand{
    display:flex;
    align-items:center;
    gap:10px;
    height:40px;
    color:var(--ink-900);
  }
  .brand:hover{color:var(--ink-900);}
  .brand-mark{
    flex:0 0 36px;
    height:36px;
    border-radius:10px;
    background:var(--brand-700);
    color:#fff;
    font-size:14px;
    font-weight:700;
    letter-spacing:.4px;
    display:flex;
    align-items:center;
    justify-content:center;
  }
  .brand-text{display:flex;flex-direction:column;line-height:1.25;min-width:0;}
  .brand-text strong{font-size:15px;font-weight:700;color:var(--ink-900);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
  .brand-text em{font-style:normal;font-size:12px;color:var(--ink-500);}
  .nav-label{font-size:12px;color:var(--ink-500);letter-spacing:.6px;margin:0 0 8px 12px;}
  .nav-group{display:flex;flex-direction:column;gap:4px;}
  .nav-item{
    position:relative;
    display:flex;
    align-items:center;
    gap:10px;
    height:44px;
    padding:0 12px;
    border-radius:10px;
    font-size:15px;
    color:var(--ink-700);
    transition:background-color .15s ease-out,color .15s ease-out;
  }
  .nav-item:hover{background:var(--brand-50);color:var(--ink-900);}
  .nav-item.is-active{background:var(--brand-100);color:var(--brand-700);font-weight:600;}
  .nav-item.is-active::before{
    content:"";
    position:absolute;
    left:0;top:8px;bottom:8px;
    width:3px;
    border-radius:2px;
    background:var(--brand-600);
  }
  .nav-ico{width:18px;height:18px;flex:0 0 18px;display:inline-flex;align-items:center;justify-content:center;}
  .nav-ico svg{width:18px;height:18px;}
  .sidebar-divider{height:1px;background:var(--line);margin:4px 0;}
  .side-card{
    background:var(--brand-50);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    padding:16px;
  }
  .side-card h3{font-size:14px;font-weight:600;color:var(--ink-900);margin-bottom:6px;}
  .side-card p{font-size:13px;color:var(--ink-500);line-height:1.7;margin-bottom:10px;}
  .side-link{font-size:13px;font-weight:600;color:var(--brand-600);display:inline-flex;align-items:center;gap:4px;}
  .side-link::after{content:"→";transition:transform .18s ease-out;}
  .side-link:hover::after{transform:translateX(4px);}

  .page{margin-left:var(--sidebar);min-height:100vh;}
  .container{max-width:1120px;margin:0 auto;padding:0 40px;}

  .mobile-bar{display:none;}
  .drawer,.drawer-mask{display:none;}

  /* ===== 组件 ===== */
  .btn-primary,.btn-ghost{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:6px;
    height:46px;
    padding:0 24px;
    border-radius:10px;
    font-size:15px;
    font-weight:600;
    cursor:pointer;
    border:1px solid transparent;
    transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
  }
  .btn-primary{background:var(--brand-600);color:#fff;}
  .btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);}
  .btn-primary:active{transform:translateY(0);}
  .btn-ghost{background:#fff;border-color:var(--line);color:var(--ink-900);}
  .btn-ghost:hover{border-color:var(--brand-600);color:var(--brand-600);}
  .btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px;}
  .chip{
    display:inline-flex;
    align-items:center;
    gap:5px;
    padding:4px 10px;
    border-radius:999px;
    font-size:12px;
    font-weight:500;
    line-height:1.6;
    background:var(--brand-50);
    color:var(--brand-700);
    border:1px solid transparent;
  }
  .chip-time{background:var(--signal-50);color:#9A5A05;}
  .chip-live{background:#FDEBEB;color:var(--err);}
  .chip-done{background:#EEF2F7;color:var(--ink-500);}
  .filter-row{display:flex;flex-wrap:wrap;gap:8px;}
  .filter-btn{
    height:36px;
    padding:0 16px;
    border-radius:999px;
    border:1px solid var(--line);
    background:#fff;
    color:var(--ink-700);
    font-size:14px;
    cursor:pointer;
    transition:all .15s ease-out;
  }
  .filter-btn:hover{border-color:var(--brand-600);color:var(--brand-600);}
  .filter-btn.is-on{background:var(--brand-100);border-color:var(--brand-100);color:var(--brand-700);font-weight:600;}

  /* ===== 面包屑 ===== */
  .breadcrumb{
    display:flex;
    align-items:center;
    flex-wrap:wrap;
    gap:8px;
    font-size:13px;
    color:var(--ink-500);
    padding:26px 0 0;
  }
  .breadcrumb a{color:var(--ink-500);}
  .breadcrumb a:hover{color:var(--brand-600);}
  .breadcrumb span[aria-current]{color:var(--ink-900);}

  /* ===== 分类 Hero ===== */
  .page-hero{padding:18px 0 8px;}
  .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;}
  .page-hero h1{
    font-size:34px;
    line-height:1.28;
    font-weight:700;
    color:var(--ink-900);
    margin:14px 0 14px;
  }
  .hero-lead{font-size:16px;color:var(--ink-700);max-width:34em;}
  .hero-actions{display:flex;gap:12px;margin-top:22px;flex-wrap:wrap;}
  .hero-meta{font-size:13px;color:var(--ink-500);margin-top:14px;}
  .hero-media{
    border-radius:16px;
    overflow:hidden;
    border:1px solid var(--line);
    box-shadow:var(--shadow-card);
    height:200px;
  }
  .hero-media img{width:100%;height:100%;object-fit:cover;}

  /* ===== 区块 ===== */
  .section{padding:56px 0 0;}
  .section:last-of-type{padding-bottom:0;}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:24px;}
  .section-head h2{font-size:26px;line-height:1.3;font-weight:700;color:var(--ink-900);}
  .section-head p{font-size:14px;color:var(--ink-500);margin-top:6px;}
  .head-rule{width:44px;height:3px;border-radius:2px;background:var(--brand-600);margin-bottom:12px;}

  /* ===== 日程卡网格 ===== */
  .schedule-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
  .schedule-card{
    display:flex;
    gap:14px;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    padding:16px;
    box-shadow:var(--shadow-card);
    transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
  }
  .schedule-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#D5E2F0;}
  .date-block{
    flex:0 0 62px;
    background:var(--brand-100);
    border-radius:10px;
    padding:8px 4px;
    text-align:center;
    color:var(--brand-700);
    align-self:flex-start;
  }
  .date-block .m{font-size:12px;font-weight:500;line-height:1.5;}
  .date-block .d{font-size:24px;font-weight:700;line-height:1.2;font-variant-numeric:tabular-nums;}
  .date-block .w{font-size:12px;color:var(--brand-700);opacity:.8;}
  .schedule-body{min-width:0;display:flex;flex-direction:column;gap:6px;}
  .schedule-body h3{font-size:16px;font-weight:600;color:var(--ink-900);line-height:1.45;}
  .schedule-meta{font-size:13px;color:var(--ink-500);line-height:1.6;}
  .schedule-foot{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:2px;}
  .score{font-size:15px;font-weight:700;color:var(--ink-900);font-variant-numeric:tabular-nums;}
  .card-link{font-size:13px;font-weight:600;color:var(--brand-600);display:inline-flex;align-items:center;gap:4px;}
  .card-link::after{content:"→";transition:transform .18s ease-out;}
  .card-link:hover::after{transform:translateX(4px);}

  /* ===== 说明区：左标题右列表 ===== */
  .read-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:44px;align-items:start;}
  .read-grid h2{font-size:26px;line-height:1.32;font-weight:700;color:var(--ink-900);margin-bottom:12px;}
  .read-grid .lead{font-size:15px;color:var(--ink-500);}
  .rule-list{display:flex;flex-direction:column;gap:14px;}
  .rule-item{
    display:flex;
    gap:16px;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    padding:18px 20px;
  }
  .rule-num{
    flex:0 0 32px;
    height:32px;
    border-radius:9px;
    background:var(--brand-50);
    color:var(--brand-700);
    font-size:13px;
    font-weight:700;
    display:flex;
    align-items:center;
    justify-content:center;
    font-variant-numeric:tabular-nums;
  }
  .rule-item h3{font-size:16px;font-weight:600;color:var(--ink-900);margin-bottom:4px;}
  .rule-item p{font-size:14px;color:var(--ink-500);line-height:1.7;}

  /* ===== 时间轴 ===== */
  .timeline{position:relative;padding-left:28px;}
  .timeline::before{content:"";position:absolute;left:6px;top:6px;bottom:6px;width:2px;background:var(--line);}
  .tl-item{position:relative;padding-bottom:22px;}
  .tl-item:last-child{padding-bottom:0;}
  .tl-item::before{
    content:"";
    position:absolute;
    left:-28px;top:6px;
    width:10px;height:10px;
    border-radius:50%;
    background:var(--brand-600);
    box-shadow:0 0 0 4px var(--brand-100);
  }
  .tl-item h3{font-size:16px;font-weight:600;color:var(--ink-900);margin-bottom:4px;}
  .tl-item p{font-size:14px;color:var(--ink-500);line-height:1.7;}
  .tl-time{font-size:12px;color:var(--brand-700);font-weight:600;letter-spacing:.4px;margin-bottom:4px;display:block;}

  /* ===== FAQ ===== */
  .faq-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-card);overflow:hidden;}
  .faq-item + .faq-item{border-top:1px solid var(--line);}
  .faq-item summary{
    list-style:none;
    cursor:pointer;
    position:relative;
    padding:18px 52px 18px 20px;
    font-size:16px;
    font-weight:600;
    color:var(--ink-900);
    transition:color .15s ease-out,background-color .15s ease-out;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary:hover{background:var(--brand-50);}
  .faq-item summary::after{
    content:"+";
    position:absolute;
    right:20px;top:50%;
    transform:translateY(-50%);
    font-size:20px;
    font-weight:500;
    color:var(--brand-600);
    line-height:1;
    transition:transform .2s ease-out;
  }
  .faq-item[open] summary{color:var(--brand-700);background:var(--brand-50);}
  .faq-item[open] summary::before{
    content:"";
    position:absolute;
    left:0;top:12px;bottom:12px;
    width:3px;
    border-radius:2px;
    background:var(--brand-600);
  }
  .faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg);}
  .faq-answer{padding:0 52px 20px 20px;font-size:15px;line-height:1.8;color:var(--ink-700);}

  /* ===== CTA ===== */
  .cta-band{
    margin:56px 0 0;
    background:var(--brand-50);
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    padding:34px;
    display:grid;
    grid-template-columns:1.1fr .9fr;
    gap:34px;
    align-items:center;
  }
  .cta-band h2{font-size:24px;line-height:1.35;font-weight:700;color:var(--ink-900);margin-bottom:10px;}
  .cta-band p{font-size:15px;color:var(--ink-700);line-height:1.8;}
  .cta-points{display:flex;flex-direction:column;gap:8px;margin-top:16px;}
  .cta-points li{font-size:14px;color:var(--ink-700);display:flex;gap:8px;align-items:flex-start;}
  .cta-points li::before{content:"";flex:0 0 6px;height:6px;border-radius:50%;background:var(--brand-600);margin-top:9px;}
  .form-card{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    box-shadow:var(--shadow-card);
    padding:26px;
  }
  .form-card h3{font-size:17px;font-weight:600;color:var(--ink-900);margin-bottom:4px;}
  .form-card .fine{font-size:13px;color:var(--ink-500);margin-bottom:16px;}
  .field-label{display:block;font-size:13px;font-weight:600;color:var(--ink-700);margin-bottom:6px;}
  .req{color:var(--signal-500);margin-left:2px;}
  .field{
    width:100%;
    height:46px;
    border:1px solid #D8E2EE;
    border-radius:10px;
    padding:0 14px;
    font-size:15px;
    color:var(--ink-900);
    background:#fff;
    transition:border-color .15s ease-out,box-shadow .15s ease-out;
  }
  .field::placeholder{color:#9AABBD;}
  .field:focus{border-color:var(--brand-600);box-shadow:0 0 0 4px rgba(26,107,196,.12);outline:none;}
  .form-note{font-size:12px;color:var(--ink-500);margin-top:10px;line-height:1.7;}
  .form-row{display:flex;gap:10px;flex-wrap:wrap;}

  /* ===== 页脚 ===== */
  .site-footer{background:var(--brand-900);color:#C7D5E6;margin-top:64px;padding:52px 0 26px;}
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;}
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px;}
  .footer-brand .brand-mark{background:var(--brand-600);}
  .footer-brand .brand-name{font-size:15px;font-weight:700;color:#fff;}
  .footer-desc{font-size:14px;line-height:1.8;color:#C7D5E6;max-width:30em;}
  .footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:12px;}
  .footer-col ul{display:flex;flex-direction:column;gap:6px;}
  .footer-col a{font-size:14px;color:#C7D5E6;line-height:2;}
  .footer-col a:hover{color:#fff;}
  .footer-contact li{font-size:14px;color:#C7D5E6;line-height:2;}
  .footer-bottom{
    margin-top:34px;
    padding-top:18px;
    border-top:1px solid rgba(255,255,255,.12);
    display:flex;
    justify-content:space-between;
    gap:12px;
    flex-wrap:wrap;
    font-size:13px;
    color:#9FB4CC;
  }

  /* ===== 响应式 ===== */
  @media (max-width:1279px){
    :root{--sidebar:212px;}
    .container{padding:0 28px;}
    .schedule-grid{grid-template-columns:repeat(2,1fr);}
    .page-hero h1{font-size:30px;}
    .hero-grid{gap:28px;}
    .read-grid{gap:28px;}
    .footer-grid{grid-template-columns:1.2fr 1fr 1fr;gap:28px;}
  }
  @media (max-width:1023px){
    .sidebar{display:none;}
    .page{margin-left:0;padding-top:64px;}
    .mobile-bar{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      position:fixed;
      top:0;left:0;right:0;
      height:64px;
      padding:0 16px;
      background:var(--surface);
      border-bottom:1px solid var(--line);
      z-index:60;
    }
    .hamburger{
      width:44px;height:44px;
      display:flex;align-items:center;justify-content:center;
      border:1px solid var(--line);
      border-radius:10px;
      background:#fff;
      color:var(--ink-900);
      cursor:pointer;
    }
    .hamburger svg{width:20px;height:20px;}
    .mobile-brand{
      font-size:15px;font-weight:700;color:var(--ink-900);
      white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
      flex:1;text-align:center;
    }
    .drawer-mask{
      display:block;
      position:fixed;inset:0;
      background:rgba(11,42,74,.45);
      opacity:0;pointer-events:none;
      transition:opacity .2s ease-out;
      z-index:70;
    }
    .drawer-mask.is-open{opacity:1;pointer-events:auto;}
    .drawer{
      display:flex;
      flex-direction:column;
      gap:18px;
      position:fixed;
      top:0;left:0;bottom:0;
      width:280px;
      padding:20px 16px 26px;
      background:var(--surface);
      border-right:1px solid var(--line);
      transform:translateX(-100%);
      transition:transform .22s ease-out;
      overflow-y:auto;
      z-index:80;
    }
    .drawer.is-open{transform:translateX(0);}
    .drawer .nav-item{height:48px;}
    .hero-grid{grid-template-columns:1fr;}
    .hero-media{height:180px;}
    .cta-band{grid-template-columns:1fr;padding:26px;}
    .read-grid{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  }
  @media (max-width:767px){
    .container{padding:0 16px;}
    .page-hero{padding-top:12px;}
    .page-hero h1{font-size:26px;}
    .hero-lead{font-size:15px;}
    .hero-actions{flex-direction:column;align-items:stretch;}
    .hero-actions .btn-primary,.hero-actions .btn-ghost{width:100%;}
    .section{padding-top:40px;}
    .section-head{flex-direction:column;align-items:flex-start;gap:6px;}
    .section-head h2{font-size:22px;}
    .schedule-grid{grid-template-columns:1fr;}
    .schedule-card{padding:14px;}
    .read-grid h2{font-size:22px;}
    .faq-item summary{font-size:15px;padding:16px 44px 16px 16px;}
    .faq-answer{padding:0 16px 18px;font-size:15px;}
    .cta-band{padding:22px 18px;}
    .cta-band h2{font-size:20px;}
    .form-card{padding:20px;}
    .form-row{flex-direction:column;}
    .site-footer{padding:40px 0 22px;}
    .footer-grid{grid-template-columns:1fr;}
    .footer-bottom{flex-direction:column;gap:6px;}
  }
  @media (max-width:520px){
    .page-hero h1{font-size:24px;}
    .date-block{flex:0 0 56px;}
    .date-block .d{font-size:22px;}
  }

/* roulang page: category6 */
:root{
  --ink-900:#101C2B;
  --ink-700:#33465C;
  --ink-500:#64778C;
  --line:#E3EAF2;
  --bg:#F7F9FC;
  --surface:#FFFFFF;
  --brand-900:#0B2A4A;
  --brand-700:#14508C;
  --brand-600:#1A6BC4;
  --brand-100:#E4EFFA;
  --brand-50:#F2F7FD;
  --signal-500:#F28C1B;
  --signal-50:#FFF4E5;
  --ok:#17916B;
  --warn:#C2760A;
  --err:#D64545;
  --radius-card:14px;
  --radius-lg:18px;
  --radius-btn:10px;
  --shadow-card:0 1px 2px rgba(16,28,43,.06),0 10px 24px -14px rgba(16,28,43,.18);
  --shadow-hover:0 2px 4px rgba(16,28,43,.08),0 18px 36px -18px rgba(16,28,43,.26);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  background:var(--bg);
  color:var(--ink-700);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
}
img{display:block;max-width:100%}
a{color:var(--brand-600);text-decoration:none;transition:color .15s ease}
a:hover{color:var(--brand-700)}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;font-weight:700}

/* ---------- App Shell ---------- */
.shell{display:flex;min-height:100vh;align-items:flex-start}
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:248px;
  background:var(--surface);
  border-right:1px solid var(--line);
  padding:20px 14px 24px;
  overflow-y:auto;
  display:flex;flex-direction:column;
  z-index:50;
}
.brand{display:flex;align-items:center;gap:10px;padding:2px 8px 20px}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:11px;
  background:var(--brand-700);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;letter-spacing:.04em;
}
.brand-text{min-width:0}
.brand-name{display:block;font-size:15px;font-weight:700;color:var(--ink-900);line-height:1.25}
.brand-sub{display:block;font-size:11px;color:var(--ink-500);letter-spacing:.1em;margin-top:2px}
.nav-group{display:flex;flex-direction:column;gap:2px}
.nav-label{
  font-size:12px;font-weight:600;color:var(--ink-500);
  letter-spacing:.1em;padding:6px 12px 10px;
}
.nav-item{
  position:relative;
  display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px;border-radius:10px;
  color:var(--ink-700);font-size:15px;line-height:1;
  transition:background .15s ease,color .15s ease;
}
.nav-item:hover{background:var(--brand-50);color:var(--ink-900)}
.nav-item.is-active{background:var(--brand-100);color:var(--brand-700);font-weight:600}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:0 3px 3px 0;background:var(--brand-600);
}
.nav-ico{display:flex;width:18px;flex:0 0 18px;color:currentColor}
.nav-ico svg{width:18px;height:18px;display:block}
.side-sep{height:1px;background:var(--line);margin:18px 4px}
.side-card{
  margin-top:auto;background:var(--brand-50);
  border:1px solid var(--line);border-radius:var(--radius-card);
  padding:16px;
}
.side-card h4{font-size:13px;font-weight:700;color:var(--ink-900);margin-bottom:6px}
.side-card p{font-size:13px;line-height:1.7;color:var(--ink-500);margin-bottom:10px}
.side-link{
  display:inline-flex;align-items:center;gap:4px;
  font-size:13px;font-weight:600;color:var(--brand-600);
}
.side-link::after{content:"→";transition:transform .18s ease}
.side-link:hover::after{transform:translateX(4px)}

.main{flex:1;min-width:0;margin-left:248px;display:flex;flex-direction:column;min-height:100vh}

/* ---------- 移动端顶栏与抽屉 ---------- */
.topbar{
  display:none;position:sticky;top:0;z-index:60;
  height:64px;background:var(--surface);
  border-bottom:1px solid var(--line);
  align-items:center;justify-content:space-between;
  padding:0 14px;gap:10px;
}
.hamburger{
  width:44px;height:44px;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:10px;background:var(--surface);
  color:var(--ink-900);cursor:pointer;
}
.hamburger svg{width:20px;height:20px}
.topbar-brand{display:flex;align-items:center;gap:8px;min-width:0}
.topbar-brand .brand-mark{width:30px;height:30px;flex:0 0 30px;border-radius:9px;font-size:11px}
.topbar-brand .brand-name{font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-cta{
  height:38px;padding:0 14px;border-radius:var(--radius-btn);
  background:var(--brand-600);color:#fff;font-size:13px;font-weight:600;
  display:inline-flex;align-items:center;white-space:nowrap;
}
.topbar-cta:hover{background:var(--brand-700);color:#fff}

.drawer-mask{
  position:fixed;inset:0;background:rgba(11,42,74,.45);
  opacity:0;pointer-events:none;transition:opacity .22s ease;z-index:70;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:280px;
  background:var(--surface);z-index:80;
  transform:translateX(-100%);transition:transform .26s ease;
  display:flex;flex-direction:column;
  padding:18px 14px 24px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer .nav-item{height:48px}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:0 6px 16px}
.drawer-close{
  width:40px;height:40px;border:1px solid var(--line);border-radius:10px;
  background:var(--surface);color:var(--ink-700);cursor:pointer;
  display:flex;align-items:center;justify-content:center;font-size:18px;
}

/* ---------- 容器与通用 ---------- */
.container{width:100%;max-width:1120px;margin:0 auto;padding:0 40px}
.page-wrap{padding-top:26px;padding-bottom:8px}

.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-500);margin-bottom:20px}
.breadcrumb a{color:var(--ink-500)}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb .sep{color:#B7C5D6}
.breadcrumb .current{color:var(--ink-700)}

.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:999px;
  font-size:12px;font-weight:500;line-height:1.6;
  background:var(--brand-50);color:var(--brand-700);
}
.chip-time{background:var(--signal-50);color:#9A5A05}
.chip-ghost{background:var(--surface);border:1px solid var(--line);color:var(--ink-700)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:46px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:background .16s ease,color .16s ease,border-color .16s ease,transform .16s ease,box-shadow .16s ease;
}
.btn-primary{background:var(--brand-600);color:#fff}
.btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:var(--surface);color:var(--ink-900);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand-600);color:var(--brand-600)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}

.link-more{display:inline-flex;align-items:center;gap:4px;font-size:14px;font-weight:600;color:var(--brand-600)}
.link-more::after{content:"→";transition:transform .18s ease}
.link-more:hover::after{transform:translateX(4px)}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  display:grid;grid-template-columns:minmax(0,1fr) 380px;
  gap:32px;align-items:center;margin-bottom:34px;
}
.cat-hero h1{
  font-size:36px;line-height:1.25;font-weight:700;color:var(--ink-900);
  margin:14px 0 12px;letter-spacing:-.01em;
}
.cat-hero .lede{font-size:17px;line-height:1.7;color:var(--ink-700);max-width:30em}
.cat-hero .meta-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.cat-hero-media{
  border-radius:16px;overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-card);height:200px;
}
.cat-hero-media img{width:100%;height:100%;object-fit:cover}

/* ---------- 杂志式混排 ---------- */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px}
.section-head h2{font-size:26px;line-height:1.3;font-weight:700;color:var(--ink-900);position:relative;padding-left:14px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  border-radius:2px;background:var(--brand-600);
}
.section-head .sub{font-size:14px;color:var(--ink-500);margin-top:6px;padding-left:14px}

.mag-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:32px;align-items:start}
.mag-main{min-width:0}

.feature-card{
  position:relative;display:block;border-radius:var(--radius-lg);
  overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card);
  margin-bottom:24px;
  transition:transform .18s ease,box-shadow .18s ease;
}
.feature-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.feature-card img{width:100%;aspect-ratio:21/9;object-fit:cover}
.feature-overlay{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,42,74,0) 28%,rgba(11,42,74,.86) 100%);
  display:flex;flex-direction:column;justify-content:flex-end;
  padding:26px 28px;
}
.feature-overlay .chip{background:rgba(255,255,255,.16);color:#fff;border:1px solid rgba(255,255,255,.28);align-self:flex-start;margin-bottom:10px}
.feature-overlay h3{font-size:24px;line-height:1.4;font-weight:700;color:#fff;max-width:24em}
.feature-overlay .feature-meta{margin-top:10px;font-size:13px;color:#D5E2F0}

.brief-list{display:flex;flex-direction:column;gap:16px}
.brief-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-card);
  padding:20px 22px;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.brief-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#CFDDEB}
.brief-card h3{font-size:18px;line-height:1.5;font-weight:600;color:var(--ink-900);margin-bottom:10px}
.brief-card h3 a{color:inherit}
.brief-card h3 a:hover{color:var(--brand-600)}
.brief-card p{
  font-size:15px;line-height:1.8;color:var(--ink-500);
  display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden;
}
.brief-foot{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:14px;padding-top:12px;border-top:1px solid var(--line);
  font-size:13px;color:var(--ink-500);
}
.brief-foot .dot{color:#BCC9D8}

/* ---------- 右窄栏 ---------- */
.mag-aside{display:flex;flex-direction:column;gap:18px;position:sticky;top:26px}
.aside-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-card);
  padding:18px 18px 20px;
}
.aside-card h4{
  font-size:14px;font-weight:700;color:var(--ink-900);
  padding-bottom:10px;margin-bottom:12px;border-bottom:1px solid var(--line);
}
.aside-list li{padding:10px 0;border-bottom:1px dashed var(--line)}
.aside-list li:last-child{border-bottom:none;padding-bottom:0}
.aside-list li:first-child{padding-top:0}
.aside-list a{display:block;font-size:14px;line-height:1.6;color:var(--ink-700);font-weight:500}
.aside-list a:hover{color:var(--brand-600)}
.aside-list .aside-meta{font-size:12px;color:var(--ink-500);margin-top:4px}
.aside-links{display:flex;flex-wrap:wrap;gap:8px}
.aside-links a{
  display:inline-flex;align-items:center;
  padding:5px 11px;border-radius:999px;
  background:var(--brand-50);color:var(--brand-700);
  font-size:12px;font-weight:500;border:1px solid transparent;
  transition:background .15s ease,color .15s ease,border-color .15s ease;
}
.aside-links a:hover{background:var(--brand-100);border-color:#CFE2F6;color:var(--brand-700)}
.aside-cta{background:var(--brand-50);border-color:#D9E7F6}
.aside-cta h4{border-bottom-color:#D9E7F6;color:var(--brand-700)}
.aside-cta p{font-size:13px;line-height:1.75;color:var(--ink-500);margin-bottom:14px}
.aside-cta .btn{width:100%}

/* ---------- 核查流程 ---------- */
.section{padding:56px 0 0}
.steps{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:16px;margin-top:6px;
}
.step-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-card);
  padding:20px;position:relative;
}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:9px;
  background:var(--brand-100);color:var(--brand-700);
  font-size:13px;font-weight:700;margin-bottom:12px;
  font-variant-numeric:tabular-nums;
}
.step-card h3{font-size:16px;font-weight:600;color:var(--ink-900);margin-bottom:8px}
.step-card p{font-size:14px;line-height:1.75;color:var(--ink-500)}

/* ---------- 观察指标 ---------- */
.metric-band{
  margin-top:32px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);padding:26px 28px;
}
.metric-band-head{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:10px;margin-bottom:20px}
.metric-band-head h3{font-size:20px;font-weight:700;color:var(--ink-900)}
.metric-band-head span{font-size:13px;color:var(--ink-500)}
.metric-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.metric{
  background:var(--brand-50);border-radius:12px;padding:16px 16px 14px;
  border:1px solid #E6EFF9;
}
.metric .value{font-size:30px;line-height:1.15;color:var(--ink-900);font-variant-numeric:tabular-nums;font-weight:700}
.metric .value .unit{font-size:12px;font-weight:500;color:var(--ink-500);margin-left:4px}
.metric .desc{font-size:13px;color:var(--ink-500);margin-top:6px;line-height:1.6}

/* ---------- FAQ ---------- */
.faq-list{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-card);
  overflow:hidden;
}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;background:transparent;border:none;cursor:pointer;
  text-align:left;font-size:16px;font-weight:600;color:var(--ink-900);
  transition:color .15s ease,background .15s ease;
}
.faq-q:hover{background:var(--brand-50)}
.faq-item.is-open .faq-q{color:var(--brand-700)}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 16px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand-600);border-radius:2px;
  transition:transform .25s ease,opacity .25s ease;
}
.faq-icon::before{left:0;top:7px;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{
  padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--ink-700);
  border-left:3px solid var(--brand-600);margin-left:22px;padding-left:16px;
}

/* ---------- CTA 条 ---------- */
.cta-band{
  margin-top:48px;background:var(--brand-50);
  border:1px solid #DCE9F7;border-radius:var(--radius-lg);
  padding:32px 34px;display:flex;flex-wrap:wrap;align-items:center;
  justify-content:space-between;gap:20px;
}
.cta-band h2{font-size:24px;line-height:1.35;font-weight:700;color:var(--ink-900);max-width:20em}
.cta-band p{font-size:14px;color:var(--ink-500);margin-top:8px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:64px;background:var(--brand-900);color:#C7D5E6;
  padding:52px 0 24px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.footer-brand .brand-mark{background:var(--brand-600)}
.footer-brand .brand-name{font-size:15px;font-weight:700;color:#fff}
.footer-desc{font-size:14px;line-height:1.85;color:#A9BDD4;max-width:26em}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:12px}
.footer-col ul{display:flex;flex-direction:column;gap:8px}
.footer-col a{font-size:14px;line-height:2;color:#C7D5E6}
.footer-col a:hover{color:#fff}
.footer-contact li{font-size:14px;line-height:2;color:#C7D5E6}
.footer-bottom{
  margin-top:34px;padding-top:18px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:#8FA6BF;
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .sidebar{width:212px}
  .main{margin-left:212px}
  .nav-item{font-size:14px;height:42px}
  .cat-hero{grid-template-columns:minmax(0,1fr) 300px;gap:24px}
  .cat-hero h1{font-size:32px}
  .mag-layout{grid-template-columns:minmax(0,1fr) 260px;gap:24px}
}
@media (max-width:1023px){
  .sidebar{display:none}
  .main{margin-left:0}
  .topbar{display:flex}
  .container{padding:0 24px}
  .cat-hero{grid-template-columns:1fr;gap:20px}
  .cat-hero-media{height:180px}
  .mag-layout{grid-template-columns:1fr}
  .mag-aside{position:static;flex-direction:row;flex-wrap:wrap}
  .mag-aside > *{flex:1 1 240px}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .feature-overlay h3{font-size:21px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .page-wrap{padding-top:18px}
  .cat-hero h1{font-size:28px}
  .cat-hero .lede{font-size:16px}
  .section{padding-top:40px}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px}
  .section-head h2{font-size:22px}
  .feature-overlay{padding:18px 20px}
  .feature-overlay h3{font-size:18px;line-height:1.45}
  .feature-overlay .feature-meta{font-size:12px}
  .brief-card{padding:16px 18px}
  .brief-card h3{font-size:17px}
  .brief-card p{font-size:15px;-webkit-line-clamp:3}
  .steps{grid-template-columns:1fr}
  .metric-grid{grid-template-columns:1fr 1fr}
  .metric .value{font-size:26px}
  .metric-band{padding:20px}
  .cta-band{padding:24px;flex-direction:column;align-items:flex-start}
  .cta-band h2{font-size:20px}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn{width:100%}
  .faq-q{font-size:15px;padding:16px 18px}
  .faq-a p{margin-left:18px;padding:0 18px 18px 14px;font-size:15px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .site-footer{padding:40px 0 20px;margin-top:48px}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media (max-width:519px){
  .metric-grid{grid-template-columns:1fr}
  .topbar-cta{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
}