/* roulang page: index */
:root{
  --brand:#1F4FA8; --brand-deep:#163C82; --brand-soft:#E8EEFB;
  --signal:#F4653A; --signal-soft:#FDEDE7;
  --teal:#2E7D8F; --neutral:#8A93A6;
  --ink:#1B2433; --muted:#5B6577; --line:#E4E9F2; --page:#F5F7FB;
  --radius-card:16px; --radius-hero:20px; --radius-btn:10px; --radius-icon:12px;
  --shadow-1:0 1px 2px rgba(18,42,90,.05), 0 8px 24px -12px rgba(18,42,90,.12);
  --shadow-2:0 2px 4px rgba(18,42,90,.06), 0 16px 34px -14px rgba(18,42,90,.20);
  --shadow-3:0 16px 40px -16px rgba(18,42,90,.22);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0; background:var(--page); color:var(--ink);
  font-family:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Source Han Sans SC',sans-serif;
  font-size:16px; line-height:1.8; -webkit-font-smoothing:antialiased;
}
img{max-width:100%; display:block}
a{color:inherit; text-decoration:none}
button,input,select{font:inherit; color:inherit}
:focus-visible{outline:2px solid var(--brand); outline-offset:2px; border-radius:6px}
.container{max-width:1240px; margin:0 auto; padding:0 16px}
@media (min-width:768px){.container{padding:0 24px}}
@media (min-width:1024px){.container{padding:0 32px}}

/* ============ 导航 ============ */
.site-header{position:sticky; top:0; z-index:60; padding:12px 0; transition:background .2s ease, box-shadow .2s ease}
.site-header.is-scrolled{background:rgba(245,247,251,.94); box-shadow:0 8px 24px -18px rgba(18,42,90,.35)}
.nav-shell{
  display:flex; align-items:center; gap:14px;
  background:#fff; border:1px solid var(--line); border-radius:14px;
  padding:10px 12px; box-shadow:var(--shadow-1);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled .nav-shell{box-shadow:var(--shadow-2)}
.brand{display:flex; align-items:center; gap:10px; flex:0 0 auto}
.brand-mark{
  width:40px; height:40px; border-radius:12px; flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-deep) 100%);
  color:#fff; font-weight:700; font-size:15px; letter-spacing:.5px;
  display:flex; align-items:center; justify-content:center;
}
.brand-text{display:flex; flex-direction:column; line-height:1.15}
.brand-text strong{font-size:16px; font-weight:700; letter-spacing:-.2px}
.brand-text em{font-style:normal; font-size:12px; color:var(--muted); letter-spacing:.4px}
.nav-links{display:none; align-items:center; gap:4px; flex:1 1 auto; min-width:0}
@media (min-width:1100px){.nav-links{display:flex}}
.nav-item{
  display:inline-flex; align-items:center; gap:6px; height:40px; padding:0 12px;
  border-radius:12px; font-size:14px; color:#41506B; white-space:nowrap;
  border:1px solid transparent; position:relative;
  transition:background .2s ease, color .2s ease, border-color .2s ease;
}
.nav-item:hover{background:var(--brand-soft); color:var(--brand)}
.nav-item.active{background:var(--brand-soft); color:var(--brand); font-weight:600; border-color:#D3E0F7}
.nav-item.active::after{
  content:''; position:absolute; left:12px; right:12px; bottom:4px; height:2px;
  background:var(--brand); border-radius:2px;
}
.nav-actions{display:none; align-items:center; gap:8px; margin-left:auto}
@media (min-width:1100px){.nav-actions{display:flex}}
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:6px;
  min-height:44px; padding:0 18px; border-radius:var(--radius-btn);
  font-size:14px; font-weight:600; cursor:pointer; border:1px solid transparent;
  transition:transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
}
.btn:active{transform:translateY(1px)}
.btn-signal{background:var(--signal); color:#fff; box-shadow:0 8px 20px -12px rgba(244,101,58,.9)}
.btn-signal:hover{background:#E4552A; transform:translateY(-2px); box-shadow:0 14px 26px -14px rgba(244,101,58,.95)}
.btn-primary{background:var(--brand); color:#fff}
.btn-primary:hover{background:var(--brand-deep); transform:translateY(-2px); box-shadow:0 14px 26px -16px rgba(31,79,168,.95)}
.btn-ghost{background:#fff; color:var(--brand); border-color:#CBDAF4}
.btn-ghost:hover{background:var(--brand-soft); transform:translateY(-2px)}
.btn-outline{background:transparent; color:var(--ink); border-color:var(--line)}
.btn-outline:hover{border-color:#C6D2E6; background:#fff; transform:translateY(-2px)}
.nav-toggle{
  margin-left:auto; width:44px; height:44px; border-radius:12px; border:1px solid var(--line);
  background:#fff; display:inline-flex; align-items:center; justify-content:center; cursor:pointer;
}
@media (min-width:1100px){.nav-toggle{display:none}}
.nav-toggle span{display:block; width:18px; height:2px; background:var(--ink); border-radius:2px; position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:''; position:absolute; left:0; width:18px; height:2px; background:var(--ink); border-radius:2px}
.nav-toggle span::before{top:-6px} .nav-toggle span::after{top:6px}
.mobile-panel{
  display:none; margin-top:10px; background:#fff; border:1px solid var(--line);
  border-radius:14px; padding:14px; box-shadow:var(--shadow-2);
}
.mobile-panel.open{display:block}
.mobile-grid{display:grid; grid-template-columns:1fr 1fr; gap:10px}
.mobile-grid .nav-item{height:auto; padding:12px; border:1px solid var(--line); justify-content:flex-start}
.mobile-cta{display:grid; gap:10px; margin-top:12px}
.mobile-cta .btn{width:100%}
@media (min-width:1100px){.mobile-panel{display:none !important}}

/* ============ 通用板块 ============ */
.section{padding:48px 0}
@media (min-width:768px){.section{padding:64px 0}}
@media (min-width:1024px){.section{padding:80px 0}}
.section-head{max-width:760px; margin-bottom:24px}
.section-head h2{font-size:26px; line-height:36px; font-weight:700; margin:0 0 8px; letter-spacing:-.2px}
.section-head p{margin:0; color:var(--muted); font-size:15px}
.eyebrow{
  display:inline-flex; align-items:center; gap:6px; font-size:12px; font-weight:600;
  color:var(--brand); background:var(--brand-soft); border-radius:999px; padding:4px 12px; margin-bottom:10px;
}
.card{background:#fff; border:1px solid var(--line); border-radius:var(--radius-card); box-shadow:var(--shadow-1); transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease}
.card:hover{transform:translateY(-2px); box-shadow:var(--shadow-2); border-color:#D5DFF0}
.badge{display:inline-flex; align-items:center; gap:6px; font-size:12px; font-weight:600; padding:4px 10px; border-radius:999px}
.badge-brand{background:var(--brand-soft); color:var(--brand)}
.badge-signal{background:var(--signal); color:#fff}
.badge-teal{background:#E4F1F3; color:var(--teal)}
.badge-plain{background:#F1F4F9; color:var(--muted)}
.dot{width:7px; height:7px; border-radius:999px; background:currentColor; display:inline-block}
.pulse{animation:pulse 1.6s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1; transform:scale(1)} 50%{opacity:.45; transform:scale(.82)}}
.num{font-variant-numeric:tabular-nums; font-feature-settings:'tnum'}

/* ============ Hero ============ */
.hero{position:relative; overflow:hidden; padding:36px 0 8px}
.hero-bg{
  position:absolute; inset:0; background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover; background-position:center; opacity:.10; pointer-events:none;
}
.hero-blob{
  position:absolute; right:-80px; bottom:-90px; width:320px; height:320px; border-radius:36px;
  background:var(--brand-soft); transform:rotate(18deg); opacity:.75; pointer-events:none;
}
.hero-grid{position:relative; display:grid; gap:32px; grid-template-columns:1fr}
@media (min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr; gap:44px; align-items:start}}
.hero h1{font-size:26px; line-height:34px; font-weight:700; letter-spacing:-.2px; margin:14px 0 12px}
@media (min-width:768px){.hero h1{font-size:32px; line-height:40px}}
.hero-sub{color:var(--muted); font-size:16px; margin:0 0 22px; max-width:760px}
.hero-cta{display:flex; flex-wrap:wrap; gap:12px; margin:22px 0 26px}
.countdown{display:flex; gap:10px; flex-wrap:wrap}
.cd-box{
  width:74px; background:#fff; border:1px solid var(--line); border-radius:14px;
  padding:10px 0 8px; text-align:center; box-shadow:var(--shadow-1);
}
.cd-box b{display:block; font-size:24px; line-height:30px; font-weight:700; color:var(--brand); font-variant-numeric:tabular-nums}
.cd-box span{display:block; font-size:12px; color:var(--muted)}
@media (max-width:520px){.cd-box{width:44px; padding:8px 0 6px} .cd-box b{font-size:18px; line-height:24px} .cd-box span{font-size:11px}}
.cd-note{font-size:13px; color:var(--muted); margin-top:10px}
.cd-live .cd-box{background:var(--signal-soft); border-color:#F8C9B6}
.cd-live .cd-box b{color:#B93B14}
.points{display:grid; gap:10px; grid-template-columns:1fr}
@media (min-width:640px){.points{grid-template-columns:1fr 1fr}}
.point{display:flex; gap:10px; align-items:flex-start; background:#fff; border:1px solid var(--line); border-radius:14px; padding:12px 14px}
.point i{
  flex:0 0 auto; width:26px; height:26px; border-radius:8px; background:var(--brand-soft); color:var(--brand);
  display:flex; align-items:center; justify-content:center; font-style:normal; font-size:12px; font-weight:700;
}
.point p{margin:0; font-size:14px; line-height:22px; color:#33405A}
.cover-wrap{position:relative; border-radius:var(--radius-hero); overflow:hidden; border:1px solid var(--line); box-shadow:var(--shadow-2); background:#fff}
.cover-wrap img{width:100%; aspect-ratio:16/9; object-fit:cover}
.cover-tag{position:absolute; top:14px; right:14px}
.cover-info{
  position:absolute; left:14px; bottom:14px; right:14px; background:rgba(255,255,255,.96);
  border:1px solid var(--line); border-radius:14px; padding:12px 14px; box-shadow:var(--shadow-3);
  display:grid; grid-template-columns:repeat(3,1fr); gap:8px; text-align:center;
}
.cover-info div b{display:block; font-size:15px; font-weight:700; font-variant-numeric:tabular-nums}
.cover-info div span{display:block; font-size:12px; color:var(--muted)}

/* ============ 横向滚动流 ============ */
.rail{display:flex; gap:16px; overflow-x:auto; padding:4px 4px 18px; scroll-snap-type:x mandatory; -ms-overflow-style:none; scrollbar-width:none}
.rail::-webkit-scrollbar{display:none}
.rail-card{
  flex:0 0 78vw; max-width:340px; scroll-snap-align:start;
  background:#fff; border:1px solid var(--line); border-radius:var(--radius-card); overflow:hidden;
  box-shadow:var(--shadow-1); transition:transform .2s ease, box-shadow .2s ease;
}
@media (min-width:640px){.rail-card{flex:0 0 320px}}
.rail-card:hover{transform:translateY(-2px); box-shadow:var(--shadow-2)}
.rail-media{position:relative}
.rail-media img{width:100%; aspect-ratio:16/9; object-fit:cover}
.rail-media .badge{position:absolute; top:12px; left:12px}
.rail-body{padding:16px}
.rail-body h3{margin:0 0 8px; font-size:17px; line-height:26px; font-weight:600; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden}
.meta{font-size:13px; color:var(--muted); display:flex; gap:10px; flex-wrap:wrap; align-items:center}
.link-arrow{display:inline-flex; align-items:center; gap:6px; color:var(--brand); font-size:14px; font-weight:600; margin-top:12px; transition:transform .2s ease}
.link-arrow:hover{transform:translateX(3px)}

/* ============ 看点清单 ============ */
.check-list{display:grid; gap:14px; grid-template-columns:1fr}
@media (min-width:768px){.check-list{grid-template-columns:1fr 1fr}}
.check-item{display:flex; gap:14px; padding:18px 20px; background:#fff; border:1px solid var(--line); border-radius:var(--radius-card); box-shadow:var(--shadow-1); transition:transform .2s ease, box-shadow .2s ease}
.check-item:hover{transform:translateY(-2px); box-shadow:var(--shadow-2)}
.check-item i{flex:0 0 auto; width:34px; height:34px; border-radius:var(--radius-icon); background:var(--brand-soft); color:var(--brand); font-style:normal; font-weight:700; display:flex; align-items:center; justify-content:center; font-size:14px}
.check-item h3{margin:0 0 4px; font-size:17px; line-height:26px; font-weight:600}
.check-item p{margin:0; font-size:14px; color:var(--muted)}

/* ============ 订阅 ============ */
.subscribe{
  background:var(--brand-soft); border:1px solid #D3E0F7; border-radius:var(--radius-hero);
  padding:24px; display:grid; gap:22px; grid-template-columns:1fr;
}
@media (min-width:1024px){.subscribe{grid-template-columns:1fr 1.15fr; padding:32px; align-items:center}}
.subscribe h2{margin:0 0 8px; font-size:24px; line-height:34px; font-weight:700}
.subscribe p{margin:0; color:#3E4C69; font-size:14px}
.form-grid{display:grid; gap:12px; grid-template-columns:1fr; background:#fff; border:1px solid var(--line); border-radius:var(--radius-card); padding:16px; box-shadow:var(--shadow-1)}
@media (min-width:640px){.form-grid{grid-template-columns:1fr 1fr}}
.field{display:flex; flex-direction:column; gap:6px}
.field label{font-size:13px; color:var(--muted)}
.field input,.field select{height:46px; padding:0 14px; border:1px solid var(--line); border-radius:var(--radius-btn); background:#fff; font-size:14px; transition:border-color .2s ease, box-shadow .2s ease}
.field input:focus,.field select:focus{border-color:var(--brand); box-shadow:0 0 0 3px rgba(31,79,168,.14); outline:none}
.form-grid .btn{grid-column:1/-1; width:100%}
.privacy{grid-column:1/-1; font-size:12px; color:var(--muted); margin:0}
.success{display:none; grid-column:1/-1; align-items:center; gap:8px; background:#EAF6EE; border:1px solid #CBE8D6; color:#1D6B3D; border-radius:var(--radius-btn); padding:12px 14px; font-size:14px}
.success.show{display:flex}

/* ============ 回放 ============ */
.replay-grid{display:grid; gap:16px; grid-template-columns:1fr}
@media (min-width:1024px){.replay-grid{grid-template-columns:1.25fr 1fr; align-items:start}}
.replay-main{position:relative; border-radius:var(--radius-hero); overflow:hidden; border:1px solid var(--line); box-shadow:var(--shadow-2); background:#fff}
.replay-main img{width:100%; aspect-ratio:16/9; object-fit:cover}
.replay-main .play{
  position:absolute; inset:0; margin:auto; width:60px; height:60px; border-radius:999px; background:rgba(255,255,255,.95);
  display:flex; align-items:center; justify-content:center; box-shadow:var(--shadow-3); transition:transform .2s ease;
}
.replay-main:hover .play{transform:scale(1.06)}
.replay-main .play::after{content:''; border-left:14px solid var(--brand); border-top:9px solid transparent; border-bottom:9px solid transparent; margin-left:4px}
.duration{position:absolute; right:12px; bottom:12px; background:rgba(20,32,58,.82); color:#fff; font-size:12px; padding:3px 8px; border-radius:999px; font-variant-numeric:tabular-nums}
.replay-main-body{padding:18px 20px}
.replay-main-body h3{margin:0 0 6px; font-size:19px; line-height:28px; font-weight:600}
.replay-list{display:grid; gap:10px}
.replay-row{display:flex; gap:14px; align-items:center; padding:10px; background:#fff; border:1px solid var(--line); border-radius:14px; transition:background .2s ease, transform .2s ease, box-shadow .2s ease}
.replay-row:hover{background:#FAFCFF; transform:translateY(-2px); box-shadow:var(--shadow-1)}
.replay-row img{width:104px; aspect-ratio:16/9; object-fit:cover; border-radius:10px; flex:0 0 auto}
.replay-row h4{margin:0 0 4px; font-size:15px; line-height:22px; font-weight:600; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden}

/* ============ 数据条 ============ */
.stat-band{background:#fff; border:1px solid var(--line); border-radius:var(--radius-hero); box-shadow:var(--shadow-1); padding:22px 16px; display:grid; gap:16px; grid-template-columns:1fr 1fr}
@media (min-width:1024px){.stat-band{grid-template-columns:repeat(4,1fr); padding:26px 28px}}
.stat b{display:block; font-size:28px; line-height:36px; font-weight:700; color:var(--brand); font-variant-numeric:tabular-nums}
.stat span{font-size:13px; color:var(--muted)}

/* ============ CMS 列表 ============ */
.post-grid{display:grid; gap:18px; grid-template-columns:1fr}
@media (min-width:768px){.post-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.post-grid{grid-template-columns:repeat(3,1fr)}}
.post-card{display:flex; flex-direction:column; background:#fff; border:1px solid var(--line); border-radius:var(--radius-card); overflow:hidden; box-shadow:var(--shadow-1); transition:transform .2s ease, box-shadow .2s ease}
.post-card:hover{transform:translateY(-2px); box-shadow:var(--shadow-2)}
.post-card img{width:100%; aspect-ratio:16/9; object-fit:cover}
.post-body{padding:18px 20px 20px; display:flex; flex-direction:column; gap:10px; flex:1}
.post-body h3{margin:0; font-size:17px; line-height:26px; font-weight:600; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden}
.post-body h3 a:hover{color:var(--brand)}
.post-body p{margin:0; font-size:14px; color:var(--muted); display:-webkit-box; -webkit-line-clamp:3; -webkit-box-orient:vertical; overflow:hidden}
.post-foot{margin-top:auto; display:flex; justify-content:space-between; align-items:center; font-size:13px; color:var(--muted)}
.empty-state{text-align:center; padding:44px 20px; background:#fff; border:1px dashed #CBD6E8; border-radius:var(--radius-card)}
.empty-state p{margin:10px 0 6px; color:var(--muted); font-size:15px}

/* ============ FAQ ============ */
.faq-grid{display:grid; gap:18px; grid-template-columns:1fr}
@media (min-width:1024px){.faq-grid{grid-template-columns:1fr 1fr}}
.faq-card{background:#fff; border:1px solid var(--line); border-radius:var(--radius-card); box-shadow:var(--shadow-1); padding:6px 20px}
.faq-card details{border-bottom:1px solid var(--line)}
.faq-card details:last-child{border-bottom:0}
.faq-card summary{list-style:none; cursor:pointer; padding:16px 0; font-size:16px; font-weight:600; display:flex; justify-content:space-between; gap:12px; align-items:flex-start}
.faq-card summary::-webkit-details-marker{display:none}
.faq-card summary::after{content:'+'; color:var(--brand); font-size:20px; line-height:1; font-weight:500; flex:0 0 auto}
.faq-card details[open] summary::after{content:'−'}
.faq-card details p{margin:0 0 16px; font-size:14px; color:var(--muted); border-left:2px solid var(--brand); padding-left:12px}

/* ============ 底部 CTA ============ */
.cta-band{
  background:#fff; border:1px solid var(--line); border-radius:var(--radius-hero);
  padding:28px 24px; box-shadow:var(--shadow-2); display:grid; gap:18px; grid-template-columns:1fr;
}
@media (min-width:1024px){.cta-band{grid-template-columns:1fr auto; align-items:center; padding:34px 36px}}
.cta-band h2{margin:0 0 8px; font-size:24px; line-height:34px; font-weight:700}
.cta-band p{margin:0; color:var(--muted); font-size:15px}

/* ============ 页脚 ============ */
.site-footer{background:#14203A; color:#C8D2E4; margin-top:24px; padding:44px 0 24px; font-size:14px}
.footer-grid{display:grid; gap:28px; grid-template-columns:1fr}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}}
.site-footer h3{color:#fff; font-size:15px; font-weight:600; margin:0 0 12px}
.site-footer a{color:#C8D2E4; transition:color .2s ease}
.site-footer a:hover{color:#fff}
.footer-links{display:grid; gap:10px}
.footer-brand .brand-text strong{color:#fff}
.footer-brand .brand-text em{color:#8FA0BE}
.footer-note{margin:14px 0 0; font-size:13px; line-height:22px; color:#93A3C0; max-width:340px}
.footer-bottom{margin-top:30px; padding-top:18px; border-top:1px solid rgba(255,255,255,.12); display:flex; flex-wrap:wrap; gap:10px; justify-content:space-between; font-size:13px; color:#8FA0BE}
.to-top{
  position:fixed; right:18px; bottom:18px; width:46px; height:46px; border-radius:999px;
  background:#fff; border:1px solid var(--line); box-shadow:var(--shadow-2); display:none;
  align-items:center; justify-content:center; cursor:pointer; z-index:70; color:var(--brand); font-size:18px;
}
.to-top.show{display:flex}

/* roulang page: article */
:root{
    --brand:#1F4FA8;
    --brand-dark:#163C82;
    --brand-light:#E8EEFB;
    --signal:#F4653A;
    --signal-light:#FFF1EC;
    --replay:#2E7D8F;
    --muted:#8A93A6;
    --ink:#1B2433;
    --ink-soft:#5B6577;
    --line:#E4E9F2;
    --bg:#F5F7FB;
    --card:#FFFFFF;
    --foot:#14203A;
    --r-card:16px;
    --r-btn:10px;
    --r-tile:12px;
    --sh-1:0 1px 2px rgba(18,42,90,.05), 0 8px 24px -12px rgba(18,42,90,.12);
    --sh-2:0 2px 6px rgba(18,42,90,.07), 0 16px 34px -14px rgba(18,42,90,.18);
    --sh-3:0 16px 40px -16px rgba(18,42,90,.22);
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button{font-family:inherit}
  input,select{font-family:inherit}
  h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
  ul,ol{padding:0}
  .num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
  .container{width:100%;max-width:1240px;margin:0 auto;padding-left:16px;padding-right:16px}
  @media (min-width:768px){.container{padding-left:24px;padding-right:24px}}
  @media (min-width:1024px){.container{padding-left:32px;padding-right:32px}}

  /* ---------- header / nav ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(245,247,251,.92);
    border-bottom:1px solid transparent;
    transition:box-shadow .2s ease-out, background .2s ease-out, border-color .2s ease-out;
  }
  .site-header.scrolled{
    background:rgba(255,255,255,.96);
    border-bottom-color:var(--line);
    box-shadow:var(--sh-2);
  }
  .header-inner{display:flex;align-items:center;gap:18px;min-height:72px}
  .brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
  .brand-mark{
    width:40px;height:40px;border-radius:var(--r-tile);
    background:var(--brand);color:#fff;
    display:flex;align-items:center;justify-content:center;
    font-weight:700;font-size:15px;letter-spacing:.5px;
    box-shadow:0 8px 18px -10px rgba(31,79,168,.75);
  }
  .brand-text{display:flex;flex-direction:column;line-height:1.15}
  .brand-text strong{font-size:17px;font-weight:700;letter-spacing:-.2px;color:var(--ink)}
  .brand-text em{font-style:normal;font-size:12px;color:var(--ink-soft);letter-spacing:1px}

  .nav-panel{
    flex:1 1 auto;min-width:0;
    background:#fff;border:1px solid var(--line);border-radius:14px;
    box-shadow:var(--sh-1);
    padding:6px;
  }
  .nav-links{display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:none}
  .nav-links::-webkit-scrollbar{display:none}
  .nav-item{
    position:relative;
    display:inline-flex;align-items:center;
    padding:9px 14px;border-radius:9px;
    font-size:14.5px;color:var(--ink-soft);font-weight:500;
    white-space:nowrap;
    transition:background .2s ease-out,color .2s ease-out;
  }
  .nav-item:hover{background:var(--brand-light);color:var(--brand-dark)}
  .nav-item.active{background:var(--brand-light);color:var(--brand-dark);font-weight:600}
  .nav-item.active::after{
    content:"";position:absolute;left:14px;right:14px;bottom:-2px;height:2px;
    background:var(--brand);border-radius:2px;
  }
  .header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:6px;
    min-height:44px;padding:10px 18px;border-radius:var(--r-btn);
    font-size:14.5px;font-weight:600;border:1px solid transparent;
    cursor:pointer;transition:transform .2s ease-out, box-shadow .2s ease-out, background .2s ease-out, color .2s ease-out, border-color .2s ease-out;
  }
  .btn:active{transform:translateY(1px)}
  .btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
  .btn-signal{background:var(--signal);color:#fff;box-shadow:0 10px 22px -12px rgba(244,101,58,.85)}
  .btn-signal:hover{background:#DE5429;transform:translateY(-2px);box-shadow:0 14px 26px -12px rgba(244,101,58,.9)}
  .btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px -14px rgba(31,79,168,.9)}
  .btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px)}
  .btn-ghost{background:#fff;color:var(--brand-dark);border-color:var(--line)}
  .btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
  .menu-toggle{
    display:none;width:44px;height:44px;border-radius:var(--r-btn);
    background:#fff;border:1px solid var(--line);align-items:center;justify-content:center;cursor:pointer;
  }
  .menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
  .menu-toggle span::before,.menu-toggle span::after{
    content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
  }
  .menu-toggle span::before{top:-6px}
  .menu-toggle span::after{top:6px}
  .mobile-panel{display:none}
  .mobile-panel.open{display:block}
  .mobile-panel .mobile-card{
    background:#fff;border:1px solid var(--line);border-radius:14px;
    box-shadow:var(--sh-3);padding:14px;margin:0 16px 16px;
  }
  .mobile-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:12px}
  .mobile-grid a{
    display:flex;align-items:center;justify-content:center;text-align:center;
    min-height:48px;padding:8px 10px;border-radius:var(--r-tile);
    background:var(--bg);border:1px solid var(--line);font-size:14px;color:var(--ink-soft);font-weight:500;
  }
  .mobile-grid a.active{background:var(--brand-light);color:var(--brand-dark);border-color:#CBD9F3;font-weight:600}
  @media (max-width:1023px){
    .nav-panel,.header-actions{display:none}
    .menu-toggle{display:flex;margin-left:auto}
    .header-inner{min-height:64px}
  }

  /* ---------- breadcrumb ---------- */
  .crumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13.5px;color:var(--ink-soft);padding:22px 0 0}
  .crumb a{color:var(--brand);font-weight:500}
  .crumb a:hover{text-decoration:underline}
  .crumb .sep{color:var(--muted)}
  .crumb .current{color:var(--muted);max-width:60vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

  /* ---------- article head ---------- */
  .article-head{padding:26px 0 8px;max-width:860px}
  .chip{
    display:inline-flex;align-items:center;gap:6px;
    padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.3px;
    background:var(--brand-light);color:var(--brand-dark);
  }
  .chip-signal{background:var(--signal-light);color:#C33F19}
  .chip-replay{background:#E7F2F4;color:var(--replay)}
  .article-title{
    font-size:26px;line-height:34px;font-weight:700;letter-spacing:-.2px;margin-top:14px;
  }
  @media (min-width:768px){.article-title{font-size:32px;line-height:40px}}
  .meta-bar{
    display:flex;align-items:center;flex-wrap:wrap;gap:14px;
    margin-top:16px;padding-top:16px;border-top:1px solid var(--line);
    font-size:13.5px;color:var(--ink-soft);
  }
  .meta-bar .dot{width:4px;height:4px;border-radius:999px;background:var(--muted)}
  .meta-bar strong{color:var(--ink);font-weight:600}

  /* ---------- layout ---------- */
  .article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:28px;padding:18px 0 0}
  @media (min-width:1024px){
    .article-layout{grid-template-columns:minmax(0,1fr) 320px;gap:36px;padding-top:26px}
  }
  .panel{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--sh-1);
  }
  .article-main{padding:24px 20px}
  @media (min-width:768px){.article-main{padding:34px 36px}}
  @media (min-width:1024px){.article-main{padding:38px 44px}}

  /* ---------- article body ---------- */
  .article-body{max-width:760px;margin:0 auto;font-size:16px;line-height:1.9;color:var(--ink)}
  .article-body > * + *{margin-top:1.2em}
  .article-body h2{
    font-size:22px;line-height:32px;font-weight:700;letter-spacing:-.2px;
    margin-top:1.8em;padding-left:14px;border-left:4px solid var(--brand);border-radius:2px;
  }
  .article-body h3{font-size:19px;line-height:29px;font-weight:600;margin-top:1.5em}
  .article-body h4{font-size:17px;line-height:26px;font-weight:600;margin-top:1.3em}
  .article-body p{color:#26303F}
  .article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
  .article-body a:hover{color:var(--brand-dark)}
  .article-body ul,.article-body ol{padding-left:1.35em}
  .article-body li{margin:.5em 0;color:#26303F}
  .article-body li::marker{color:var(--brand)}
  .article-body blockquote{
    border-left:3px solid var(--brand);background:var(--brand-light);
    padding:16px 20px;border-radius:0 var(--r-tile) var(--r-tile) 0;color:var(--ink-soft);
  }
  .article-body img{border-radius:var(--r-card);width:100%;height:auto}
  .article-body figure{margin:1.6em 0}
  .article-body figcaption{font-size:13px;color:var(--ink-soft);text-align:center;margin-top:10px}
  .article-body .table-wrap{overflow-x:auto;border-radius:var(--r-tile);border:1px solid var(--line)}
  .article-body table{width:100%;border-collapse:collapse;font-size:14px;min-width:520px}
  .article-body th,.article-body td{border-bottom:1px solid var(--line);padding:11px 14px;text-align:left}
  .article-body th{background:var(--brand-light);color:var(--brand-dark);font-weight:600}
  .article-body tr:last-child td{border-bottom:none}
  .article-body code{background:#F1F4FA;border:1px solid var(--line);border-radius:6px;padding:2px 6px;font-size:14px}
  .article-body hr{border:none;border-top:1px solid var(--line);margin:2em 0}

  /* ---------- empty state ---------- */
  .empty-state{
    max-width:760px;margin:0 auto;text-align:center;padding:52px 20px;
    background:var(--bg);border:1px dashed #CBD5E6;border-radius:var(--r-card);
  }
  .empty-state .icon{
    width:56px;height:56px;border-radius:var(--r-tile);background:var(--brand-light);
    color:var(--brand);display:flex;align-items:center;justify-content:center;margin:0 auto 16px;
  }
  .empty-state h2{font-size:19px;font-weight:600;margin-bottom:8px}
  .empty-state p{color:var(--ink-soft);font-size:14.5px;margin-bottom:18px}

  /* ---------- tags ---------- */
  .tag-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:30px;padding-top:22px;border-top:1px solid var(--line)}
  .tag-row .label{font-size:13px;color:var(--muted);margin-right:4px}
  .tag{
    display:inline-flex;align-items:center;min-height:30px;padding:4px 12px;border-radius:999px;
    background:var(--bg);border:1px solid var(--line);font-size:13px;color:var(--ink-soft);
    transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out;
  }
  .tag:hover{background:var(--brand-light);color:var(--brand-dark);border-color:#CBD9F3}

  /* ---------- aside ---------- */
  .article-aside{display:flex;flex-direction:column;gap:18px}
  @media (min-width:1024px){.aside-sticky{position:sticky;top:96px}}
  .aside-card{padding:20px}
  .aside-card h3{font-size:16px;font-weight:700;margin-bottom:12px;display:flex;align-items:center;gap:8px}
  .aside-card .mark{width:6px;height:16px;border-radius:3px;background:var(--brand)}
  .aside-list{list-style:none;display:flex;flex-direction:column;gap:10px}
  .aside-list a{
    display:flex;align-items:center;justify-content:space-between;gap:10px;
    padding:11px 13px;border-radius:var(--r-tile);background:var(--bg);
    border:1px solid var(--line);font-size:14px;color:var(--ink-soft);
    transition:transform .2s ease-out,background .2s ease-out,color .2s ease-out,box-shadow .2s ease-out;
  }
  .aside-list a:hover{background:#fff;color:var(--brand-dark);transform:translateX(2px);box-shadow:var(--sh-1)}
  .aside-list a .arrow{color:var(--muted);transition:transform .2s ease-out}
  .aside-list a:hover .arrow{transform:translateX(3px);color:var(--brand)}
  .remind-card{background:var(--brand-light);border:1px solid #CBD9F3;border-radius:var(--r-card);padding:20px}
  .remind-card .time{font-size:21px;font-weight:700;color:var(--brand-dark);letter-spacing:-.2px}
  .remind-card p{font-size:13.5px;color:var(--ink-soft);margin:8px 0 16px}

  /* ---------- related ---------- */
  .section{padding:56px 0 0}
  @media (min-width:768px){.section{padding-top:72px}}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px;flex-wrap:wrap}
  .section-head h2{font-size:22px;line-height:32px;font-weight:700;letter-spacing:-.2px}
  .section-head p{font-size:14px;color:var(--ink-soft);margin-top:6px}
  .section-head .more{font-size:14px;color:var(--brand);font-weight:600}
  .section-head .more:hover{text-decoration:underline}

  .grid-3{display:grid;grid-template-columns:1fr;gap:18px}
  @media (min-width:640px){.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}}
  @media (min-width:1024px){.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}}
  .cms-card{
    display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
    border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;
    transition:transform .2s ease-out, box-shadow .2s ease-out, border-color .2s ease-out;
  }
  .cms-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#CBD9F3}
  .cms-card .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--brand-light)}
  .cms-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out}
  .cms-card:hover .thumb img{transform:scale(1.03)}
  .cms-card .body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
  .cms-card h3{font-size:16.5px;line-height:25px;font-weight:600}
  .cms-card p{font-size:14px;color:var(--ink-soft);line-height:1.7}
  .cms-card .foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--muted)}

  /* ---------- prev / next ---------- */
  .dual{display:grid;grid-template-columns:1fr;gap:16px;margin-top:34px;padding-top:26px;border-top:1px solid var(--line)}
  @media (min-width:768px){.dual{grid-template-columns:1fr 1fr}}
  .dual a{
    display:flex;flex-direction:column;gap:8px;padding:18px 20px;
    background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);
    transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
  }
  .dual a:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#CBD9F3}
  .dual .kicker{font-size:12.5px;color:var(--muted);letter-spacing:.6px}
  .dual .title{font-size:16px;font-weight:600;color:var(--ink)}
  .dual .desc{font-size:13.5px;color:var(--ink-soft)}

  /* ---------- CTA ---------- */
  .cta-band{
    margin-top:64px;background:var(--brand-light);border:1px solid #CBD9F3;border-radius:20px;
    padding:32px 24px;display:grid;gap:20px;
  }
  @media (min-width:900px){
    .cta-band{grid-template-columns:minmax(0,1fr) auto;align-items:center;padding:40px 44px}
  }
  .cta-band h2{font-size:23px;line-height:33px;font-weight:700;letter-spacing:-.2px}
  .cta-band p{font-size:14.5px;color:var(--ink-soft);margin-top:10px;max-width:620px}
  .cta-actions{display:flex;gap:12px;flex-wrap:wrap}

  /* ---------- footer ---------- */
  .site-footer{background:var(--foot);color:#C6CFE0;margin-top:72px;padding:56px 0 26px}
  .footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
  @media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
  @media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}}
  .footer-brand .brand-text strong{color:#fff}
  .footer-brand .brand-text em{color:#93A1BC}
  .footer-brand .brand-mark{background:#21469A;box-shadow:none}
  .footer-note{font-size:13.5px;line-height:1.8;color:#94A2BC;margin-top:14px;max-width:320px}
  .site-footer h3{font-size:14px;color:#fff;font-weight:600;margin-bottom:14px;letter-spacing:.4px}
  .footer-links{display:flex;flex-direction:column;gap:10px}
  .footer-links a{font-size:13.5px;color:#9BA9C3;transition:color .2s ease-out,transform .2s ease-out}
  .footer-links a:hover{color:#fff;transform:translateX(2px)}
  .footer-bottom{
    margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
    display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:12.5px;color:#8494B2;
  }

  /* ---------- back to top ---------- */
  .to-top{
    position:fixed;right:18px;bottom:22px;width:46px;height:46px;border-radius:999px;
    background:#fff;border:1px solid var(--line);box-shadow:var(--sh-2);
    display:flex;align-items:center;justify-content:center;color:var(--brand);
    opacity:0;visibility:hidden;transform:translateY(10px);
    transition:opacity .2s ease-out, transform .2s ease-out, visibility .2s ease-out;
    z-index:70;cursor:pointer;
  }
  .to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
  .to-top:hover{background:var(--brand);color:#fff;border-color:var(--brand)}

  @media (max-width:520px){
    .article-title{font-size:23px;line-height:31px}
    .article-main{padding:20px 16px}
    .btn{padding:10px 15px;font-size:14px}
    .crumb .current{max-width:42vw}
  }

/* roulang page: category1 */
:root{
    --brand:#1F4FA8; --brand-deep:#163C82; --brand-soft:#E8EEFB;
    --signal:#F4653A; --signal-deep:#D9491F; --signal-soft:#FDEDE7;
    --teal:#2E7D8F; --neutral:#8A93A6;
    --ink:#1B2433; --ink-2:#5B6577; --line:#E4E9F2; --bg:#F5F7FB; --card:#FFFFFF; --deep:#14203A;
    --r-card:16px; --r-lg:20px; --r-btn:10px; --r-chip:999px;
    --sh-1:0 1px 2px rgba(18,42,90,.05), 0 8px 24px -12px rgba(18,42,90,.12);
    --sh-2:0 2px 6px rgba(18,42,90,.07), 0 16px 34px -14px rgba(18,42,90,.22);
    --sh-3:0 16px 40px -16px rgba(18,42,90,.22);
    --t:200ms ease-out;
  }

  html{ scroll-behavior:smooth; }
  html body{
    margin:0; padding:0; background:var(--bg); color:var(--ink);
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
    font-size:16px; line-height:1.8;
    -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
  }
  html img{ max-width:100%; display:block; border:0; }
  html a{ color:inherit; text-decoration:none; }
  html button{ font-family:inherit; }
  html ::selection{ background:var(--brand-soft); color:var(--brand-deep); }

  .container{ width:100%; max-width:1240px; margin:0 auto; padding:0 16px; }
  @media (min-width:768px){ .container{ padding:0 24px; } }
  @media (min-width:1024px){ .container{ padding:0 32px; } }

  .section{ padding:48px 0; }
  @media (min-width:768px){ .section{ padding:64px 0; } }
  @media (min-width:1024px){ .section{ padding:80px 0; } }

  /* ---------- 头部导航 ---------- */
  .site-header{
    position:sticky; top:0; z-index:60; padding:10px 0;
    background:var(--bg);
    transition:background-color var(--t), box-shadow var(--t);
  }
  .site-header.is-scrolled{
    background:rgba(245,247,251,.94);
    box-shadow:0 10px 26px -18px rgba(18,42,90,.55);
  }
  .header-inner{
    display:flex; align-items:center; gap:12px;
    background:var(--card); border:1px solid var(--line); border-radius:14px;
    box-shadow:var(--sh-1); padding:10px 12px;
  }
  .brand{ display:inline-flex; align-items:center; gap:10px; padding:4px; border-radius:12px; flex:none; }
  .brand-mark{
    width:38px; height:38px; border-radius:12px; background:var(--brand); color:#fff;
    display:grid; place-items:center; font-size:14px; font-weight:800; letter-spacing:.5px; flex:none;
  }
  .brand-text{ display:flex; flex-direction:column; line-height:1.15; }
  .brand-text strong{ font-size:16px; font-weight:800; letter-spacing:.2px; color:var(--ink); }
  .brand-text em{ font-style:normal; font-size:11px; letter-spacing:1.6px; color:var(--ink-2); }

  .nav-links{ display:none; }
  @media (min-width:1024px){
    .nav-links{ display:flex; align-items:center; gap:4px; margin-left:8px; }
  }
  .nav-item{
    position:relative; display:inline-flex; align-items:center;
    min-height:44px; padding:0 14px; border-radius:10px;
    font-size:14.5px; font-weight:500; color:var(--ink-2);
    transition:background-color var(--t), color var(--t), transform var(--t);
    white-space:nowrap;
  }
  .nav-item:hover{ background:var(--brand-soft); color:var(--brand-deep); transform:translateY(-2px); }
  .nav-item.active{ background:var(--brand-soft); color:var(--brand); font-weight:700; }
  .nav-item.active::after{
    content:""; position:absolute; left:14px; right:14px; bottom:4px; height:2px;
    border-radius:2px; background:var(--brand);
  }
  .nav-item:focus-visible{ outline:2px solid var(--brand); outline-offset:2px; }

  .header-actions{ display:flex; align-items:center; gap:8px; margin-left:auto; flex:none; }
  .header-actions .btn-secondary{ display:none; }
  @media (min-width:1024px){ .header-actions .btn-secondary{ display:inline-flex; } }

  .menu-toggle{
    display:inline-flex; align-items:center; justify-content:center;
    width:44px; height:44px; border-radius:12px; border:1px solid var(--line);
    background:#fff; color:var(--brand-deep); cursor:pointer; transition:var(--t);
  }
  .menu-toggle:hover{ border-color:var(--brand); transform:translateY(-2px); }
  .menu-toggle:focus-visible{ outline:2px solid var(--brand); outline-offset:2px; }
  @media (min-width:1024px){ .menu-toggle{ display:none; } }

  .mobile-panel{
    display:none; margin-top:10px; padding:12px;
    background:#fff; border:1px solid var(--line); border-radius:14px; box-shadow:var(--sh-2);
  }
  .mobile-panel.open{ display:block; }
  @media (min-width:1024px){ .mobile-panel{ display:none !important; } }
  .mobile-nav{ display:grid; grid-template-columns:1fr 1fr; gap:8px; }
  .mobile-nav .nav-item{ justify-content:center; }
  .mobile-cta{ display:grid; gap:8px; margin-top:12px; }

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex; align-items:center; justify-content:center; gap:6px;
    min-height:44px; padding:0 18px; border-radius:var(--r-btn);
    font-size:14.5px; font-weight:600; border:1px solid transparent;
    cursor:pointer; transition:transform var(--t), background-color var(--t), box-shadow var(--t), border-color var(--t), color var(--t);
  }
  .btn:focus-visible{ outline:2px solid var(--brand); outline-offset:2px; }
  .btn:active{ transform:translateY(1px); }
  .btn-signal{ background:var(--signal); color:#fff; box-shadow:0 10px 20px -12px rgba(244,101,58,.85); }
  .btn-signal:hover{ background:var(--signal-deep); transform:translateY(-2px); box-shadow:0 14px 26px -12px rgba(244,101,58,.9); }
  .btn-primary{ background:var(--brand); color:#fff; box-shadow:0 10px 20px -14px rgba(31,79,168,.9); }
  .btn-primary:hover{ background:var(--brand-deep); transform:translateY(-2px); }
  .btn-ghost{ background:#fff; color:var(--brand); border-color:var(--line); }
  .btn-ghost:hover{ border-color:var(--brand); color:var(--brand-deep); transform:translateY(-2px); box-shadow:var(--sh-1); }
  .btn-ghost.is-done{ background:var(--brand-soft); border-color:#C9D9F4; color:var(--brand-deep); }
  .btn-outline-light{ background:transparent; color:#fff; border-color:rgba(255,255,255,.4); }
  .btn-outline-light:hover{ background:rgba(255,255,255,.12); border-color:#fff; transform:translateY(-2px); }
  .btn-block{ width:100%; }

  /* ---------- 标签 / 徽章 ---------- */
  .badge{
    display:inline-flex; align-items:center; gap:6px;
    height:26px; padding:0 10px; border-radius:var(--r-chip);
    font-size:12px; font-weight:600; letter-spacing:.2px; white-space:nowrap;
  }
  .badge-brand{ background:var(--brand-soft); color:var(--brand-deep); }
  .badge-signal{ background:var(--signal); color:#fff; }
  .badge-teal{ background:rgba(46,125,143,.12); color:var(--teal); }
  .badge-neutral{ background:#EEF1F6; color:var(--neutral); }
  .pulse-dot{ width:7px; height:7px; border-radius:999px; background:#fff; animation:pulse 1.6s ease-in-out infinite; }
  .badge-brand .pulse-dot{ background:var(--brand); }
  @keyframes pulse{ 0%,100%{ opacity:1; transform:scale(1); } 50%{ opacity:.45; transform:scale(.72); } }

  .tag{
    display:inline-flex; align-items:center; height:24px; padding:0 10px;
    border-radius:var(--r-chip); background:#F2F5FA; color:var(--ink-2); font-size:12.5px; font-weight:500;
  }

  /* ---------- 页头 ---------- */
  .page-head{ padding:28px 0 8px; }
  @media (min-width:1024px){ .page-head{ padding:40px 0 12px; } }
  .breadcrumb{ display:flex; align-items:center; gap:8px; font-size:13px; color:var(--ink-2); margin-bottom:18px; }
  .breadcrumb a{ color:var(--ink-2); transition:color var(--t); }
  .breadcrumb a:hover{ color:var(--brand); }
  .breadcrumb span{ color:#AEB7C7; }
  .crumb-current{ color:var(--neutral); }

  .page-head-card{
    position:relative; overflow:hidden;
    background:var(--card); border:1px solid var(--line); border-radius:var(--r-lg);
    box-shadow:var(--sh-1); padding:24px 20px;
  }
  @media (min-width:768px){ .page-head-card{ padding:32px; } }
  .page-head-card::after{
    content:""; position:absolute; right:-60px; bottom:-70px; width:220px; height:220px;
    border-radius:36px; background:var(--brand-soft); opacity:.7; transform:rotate(18deg); pointer-events:none;
  }
  .head-visual{
    position:absolute; right:0; top:0; width:320px; height:100%;
    background-image:url('/assets/images/backpic/back-2.png');
    background-size:cover; background-position:center right; opacity:.14; pointer-events:none;
  }
  .eyebrow{
    display:inline-flex; align-items:center; gap:8px; height:28px; padding:0 12px;
    border-radius:var(--r-chip); background:var(--signal-soft); color:var(--signal-deep);
    font-size:12.5px; font-weight:600;
  }
  .eyebrow .dot{ width:7px; height:7px; border-radius:999px; background:var(--signal); animation:pulse 1.6s ease-in-out infinite; }
  .page-title{
    position:relative; margin:16px 0 0; font-size:26px; line-height:34px; font-weight:700;
    letter-spacing:-.2px; color:var(--ink); max-width:760px;
  }
  @media (min-width:768px){ .page-title{ font-size:32px; line-height:40px; } }
  .page-sub{ margin:12px 0 0; font-size:15px; line-height:1.8; color:var(--ink-2); max-width:660px; position:relative; }

  .head-meta{
    position:relative; margin-top:22px; display:grid; gap:10px;
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
  @media (min-width:768px){ .head-meta{ grid-template-columns:repeat(4,minmax(0,1fr)); } }
  .head-meta-item{
    background:#FAFBFE; border:1px solid var(--line); border-radius:12px; padding:12px 14px;
  }
  .head-meta-item b{ display:block; font-size:18px; font-weight:800; color:var(--brand); font-variant-numeric:tabular-nums; line-height:1.3; }
  .head-meta-item span{ display:block; margin-top:2px; font-size:12.5px; color:var(--ink-2); }

  /* ---------- 筛选胶囊 ---------- */
  .filter-bar{
    margin-top:20px; display:flex; flex-wrap:wrap; align-items:center; gap:10px;
    background:var(--card); border:1px solid var(--line); border-radius:14px;
    box-shadow:var(--sh-1); padding:12px 14px;
  }
  .filter-label{ font-size:13px; font-weight:600; color:var(--ink-2); padding-right:4px; }
  .chip{
    display:inline-flex; align-items:center; gap:7px; min-height:38px; padding:0 16px;
    border-radius:var(--r-chip); border:1px solid var(--line); background:#fff;
    color:var(--ink-2); font-size:14px; cursor:pointer;
    transition:transform var(--t), background-color var(--t), color var(--t), border-color var(--t);
  }
  .chip:hover{ border-color:var(--brand); color:var(--brand); transform:translateY(-2px); }
  .chip:focus-visible{ outline:2px solid var(--brand); outline-offset:2px; }
  .chip.is-active{ background:var(--brand); border-color:var(--brand); color:#fff; font-weight:600; }
  .chip-num{
    display:inline-flex; align-items:center; justify-content:center;
    min-width:20px; height:20px; padding:0 6px; border-radius:999px;
    background:#F0F3F9; color:var(--ink-2); font-size:11.5px; font-weight:700;
    font-variant-numeric:tabular-nums;
  }
  .chip.is-active .chip-num{ background:rgba(255,255,255,.24); color:#fff; }

  /* ---------- 板块标题 ---------- */
  .section-title{ margin:0; font-size:22px; line-height:32px; font-weight:700; letter-spacing:-.2px; color:var(--ink); }
  @media (min-width:768px){ .section-title{ font-size:26px; line-height:36px; } }
  .section-desc{ margin:8px 0 0; font-size:14.5px; color:var(--ink-2); max-width:760px; }

  /* ---------- 时间轴 ---------- */
  .timeline{ list-style:none; margin:0; padding:0; display:grid; gap:24px; }
  .tl-item{ display:grid; grid-template-columns:58px 24px minmax(0,1fr); align-items:start; }
  @media (min-width:768px){ .tl-item{ grid-template-columns:88px 32px minmax(0,1fr); } }
  .tl-time{ text-align:right; padding:8px 10px 0 0; }
  @media (min-width:768px){ .tl-time{ padding-right:16px; } }
  .tl-date{ display:block; font-size:12.5px; color:var(--ink-2); }
  .tl-clock{
    display:block; font-size:17px; font-weight:800; color:var(--brand);
    font-variant-numeric:tabular-nums; letter-spacing:-.2px;
  }
  @media (min-width:768px){ .tl-clock{ font-size:20px; } }

  .tl-axis{ position:relative; align-self:stretch; display:flex; justify-content:center; }
  .tl-axis::before{
    content:""; position:absolute; top:0; bottom:-24px; left:50%; width:2px; margin-left:-1px; background:var(--line);
  }
  .tl-item:last-child .tl-axis::before{ bottom:auto; height:26px; }
  .tl-node{
    position:relative; z-index:1; margin-top:14px;
    width:12px; height:12px; border-radius:999px; background:#fff; border:3px solid var(--brand);
  }
  .tl-node.is-live{ border-color:var(--signal); box-shadow:0 0 0 4px rgba(244,101,58,.16); }

  .tl-card{
    display:grid; grid-template-columns:1fr; gap:16px;
    background:var(--card); border:1px solid var(--line); border-radius:var(--r-card);
    box-shadow:var(--sh-1); padding:16px;
    transition:transform var(--t), box-shadow var(--t), border-color var(--t);
  }
  @media (min-width:768px){
    .tl-card{ grid-template-columns:220px minmax(0,1fr); gap:20px; padding:20px; }
  }
  .tl-card:hover{ transform:translateY(-2px); box-shadow:var(--sh-2); border-color:#D7E1F2; }
  .tl-cover{
    position:relative; border-radius:14px; overflow:hidden; background:var(--brand-soft);
    aspect-ratio:16 / 9;
  }
  .tl-cover img{ width:100%; height:100%; object-fit:cover; }
  .tl-cover .badge{ position:absolute; left:10px; top:10px; }
  .tl-cover .dur{
    position:absolute; right:10px; bottom:10px;
    background:rgba(20,32,58,.78); color:#fff; font-size:11.5px;
    padding:3px 8px; border-radius:999px; font-variant-numeric:tabular-nums;
  }
  .tl-title{ margin:8px 0 0; font-size:17px; line-height:26px; font-weight:700; color:var(--ink); }
  @media (min-width:768px){ .tl-title{ font-size:18px; line-height:28px; } }
  .tl-meta{ display:flex; flex-wrap:wrap; align-items:center; gap:8px; font-size:12.5px; color:var(--ink-2); }
  .points{ list-style:none; margin:12px 0 0; padding:0; display:grid; gap:6px; }
  .points li{ position:relative; padding-left:16px; font-size:14px; color:var(--ink-2); }
  .points li::before{
    content:""; position:absolute; left:0; top:9px; width:7px; height:7px;
    border-radius:2px; background:var(--brand-soft); border:1px solid var(--brand);
  }
  .tl-actions{ margin-top:16px; display:flex; flex-wrap:wrap; align-items:center; gap:12px; }
  .text-link{
    display:inline-flex; align-items:center; gap:6px; font-size:14px; font-weight:600; color:var(--brand);
    transition:color var(--t), gap var(--t);
  }
  .text-link span{ transition:transform var(--t); }
  .text-link:hover{ color:var(--brand-deep); }
  .text-link:hover span{ transform:translateX(3px); }
  .empty-note{
    margin:24px 0 0; padding:20px; text-align:center; font-size:14px; color:var(--ink-2);
    background:#fff; border:1px dashed #D5DEEE; border-radius:14px;
  }

  /* ---------- 数据条 ---------- */
  .stat-band{
    background:var(--deep); border-radius:var(--r-lg); padding:26px 20px;
    display:grid; gap:20px; grid-template-columns:repeat(2,minmax(0,1fr));
    box-shadow:var(--sh-2);
  }
  @media (min-width:768px){ .stat-band{ grid-template-columns:repeat(4,minmax(0,1fr)); padding:32px; } }
  .stat-num{
    display:block; font-size:26px; line-height:1.25; font-weight:800; color:#fff;
    font-variant-numeric:tabular-nums; letter-spacing:-.5px;
  }
  @media (min-width:768px){ .stat-num{ font-size:30px; } }
  .stat-label{ display:block; margin-top:6px; font-size:13px; color:#94A4C6; }
  .stat-cell{ border-left:2px solid rgba(244,101,58,.85); padding-left:14px; }

  /* ---------- 订阅卡 ---------- */
  .subscribe-card{
    background:var(--brand-soft); border:1px solid #D6E1F7; border-radius:var(--r-lg);
    padding:24px 20px; display:grid; gap:28px; box-shadow:var(--sh-1);
  }
  @media (min-width:768px){ .subscribe-card{ padding:32px; } }
  @media (min-width:1024px){ .subscribe-card{ grid-template-columns:1.05fr 1fr; gap:44px; align-items:center; padding:40px; } }
  .subscribe-card h2{ margin:0; font-size:22px; line-height:32px; font-weight:700; color:var(--brand-deep); }
  @media (min-width:768px){ .subscribe-card h2{ font-size:26px; line-height:36px; } }
  .subscribe-card .lead{ margin:10px 0 0; font-size:14.5px; color:#39496B; max-width:520px; }
  .sub-list{ list-style:none; margin:16px 0 0; padding:0; display:grid; gap:8px; }
  .sub-list li{ position:relative; padding-left:24px; font-size:14px; color:#39496B; }
  .sub-list li::before{
    content:""; position:absolute; left:0; top:6px; width:14px; height:14px; border-radius:4px;
    background:#fff; border:1px solid #B9CBE9;
  }
  .sub-list li::after{
    content:""; position:absolute; left:4px; top:10px; width:6px; height:3px;
    border-left:2px solid var(--brand); border-bottom:2px solid var(--brand); transform:rotate(-45deg);
  }

  .sub-form{ background:#fff; border:1px solid #DCE5F5; border-radius:var(--r-card); box-shadow:var(--sh-1); padding:20px; }
  @media (min-width:768px){ .sub-form{ padding:24px; } }
  .field + .field{ margin-top:14px; }
  .field label{ display:block; font-size:13.5px; font-weight:600; color:var(--brand-deep); margin-bottom:6px; }
  .field input, .field select{
    width:100%; height:46px; padding:0 14px; border-radius:var(--r-btn);
    border:1px solid #CFDCF3; background:#fff; color:var(--ink); font-size:15px;
    transition:border-color var(--t), outline-color var(--t);
  }
  .field input::placeholder{ color:#A7B0C0; }
  .field input:focus, .field select:focus{ border-color:var(--brand); outline:2px solid var(--brand); outline-offset:2px; }
  .sub-form .btn{ margin-top:18px; }
  .form-note{ margin:12px 0 0; font-size:12px; color:var(--ink-2); }
  .form-success{
    margin-top:16px; padding:14px; border-radius:12px; background:#EEF7F1;
    border:1px solid #CBE6D6; color:#1F6B45; font-size:14px; display:flex; gap:10px; align-items:flex-start;
  }
  .form-success .ok-mark{
    width:22px; height:22px; border-radius:999px; background:#2E9A63; color:#fff;
    display:grid; place-items:center; font-size:13px; flex:none; margin-top:2px;
  }

  /* ---------- FAQ ---------- */
  .faq-grid{ display:grid; gap:16px; }
  @media (min-width:768px){ .faq-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); gap:18px 20px; } }
  .faq-item{
    background:var(--card); border:1px solid var(--line); border-radius:var(--r-card);
    box-shadow:var(--sh-1); padding:0 20px; transition:box-shadow var(--t), transform var(--t);
  }
  .faq-item:hover{ box-shadow:var(--sh-2); }
  .faq-item summary{
    list-style:none; cursor:pointer; display:flex; align-items:center; justify-content:space-between; gap:12px;
    padding:18px 0; font-size:16px; font-weight:600; color:var(--ink); line-height:1.6;
  }
  .faq-item summary::-webkit-details-marker{ display:none; }
  .faq-item summary:focus-visible{ outline:2px solid var(--brand); outline-offset:2px; }
  .faq-icon{
    width:24px; height:24px; border-radius:8px; background:var(--brand-soft); color:var(--brand);
    display:grid; place-items:center; font-size:15px; font-weight:700; flex:none; line-height:1;
  }
  .faq-icon::before{ content:"+"; }
  .faq-item[open] .faq-icon::before{ content:"−"; }
  .faq-body{ margin:0 0 18px; padding-left:14px; border-left:2px solid var(--brand); }
  .faq-body p{ margin:0; font-size:14.5px; color:var(--ink-2); }

  /* ---------- 底部 CTA ---------- */
  .cta-band{
    background:var(--deep); border-radius:var(--r-lg); padding:28px 22px;
    display:grid; gap:20px; box-shadow:var(--sh-2);
  }
  @media (min-width:768px){ .cta-band{ grid-template-columns:1fr auto; align-items:center; padding:40px; gap:32px; } }
  .cta-band h2{ margin:0; font-size:22px; line-height:32px; font-weight:700; color:#fff; }
  @media (min-width:768px){ .cta-band h2{ font-size:26px; line-height:36px; } }
  .cta-band p{ margin:10px 0 0; font-size:14.5px; color:#A9B8D6; max-width:620px; }
  .cta-actions{ display:flex; flex-wrap:wrap; gap:12px; }

  /* ---------- 页脚 ---------- */
  .site-footer{ background:var(--deep); color:#C9D3E6; padding:56px 0 24px; margin-top:48px; }
  .footer-grid{ display:grid; gap:32px; grid-template-columns:1fr; }
  @media (min-width:768px){ .footer-grid{ grid-template-columns:1.4fr 1fr 1fr 1fr; gap:28px; } }
  .site-footer .brand{ padding:0; }
  .site-footer .brand-mark{ background:#fff; color:var(--brand); }
  .site-footer .brand-text strong{ color:#fff; }
  .site-footer .brand-text em{ color:#9FB0D0; }
  .footer-note{ margin:14px 0 0; max-width:320px; font-size:13.5px; line-height:1.75; color:#93A3C2; }
  .site-footer h3{ margin:0 0 12px; font-size:14px; font-weight:700; color:#fff; letter-spacing:.4px; }
  .footer-links{ display:grid; gap:8px; }
  .footer-links a{ font-size:13.5px; color:#9FB0D0; transition:color var(--t), transform var(--t); }
  .footer-links a:hover{ color:#fff; }
  .footer-bottom{
    margin-top:36px; padding-top:16px; border-top:1px solid rgba(255,255,255,.09);
    display:flex; flex-wrap:wrap; gap:8px 24px; justify-content:space-between;
    font-size:12.5px; color:#7F8FB0;
  }

  /* ---------- 返回顶部 ---------- */
  .to-top{
    position:fixed; right:18px; bottom:22px; width:46px; height:46px; border-radius:14px;
    background:#fff; border:1px solid var(--line); box-shadow:var(--sh-2); color:var(--brand);
    display:grid; place-items:center; cursor:pointer; z-index:70;
    opacity:0; visibility:hidden; transition:opacity var(--t), visibility var(--t), transform var(--t);
  }
  .to-top.show{ opacity:1; visibility:visible; }
  .to-top:hover{ transform:translateY(-2px); border-color:var(--brand); }
  .to-top:focus-visible{ outline:2px solid var(--brand); outline-offset:2px; }

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

/* roulang page: category2 */
:root{
  --brand:#1F4FA8;
  --brand-dark:#163C82;
  --brand-light:#E8EEFB;
  --signal:#F4653A;
  --signal-light:#FDE9E2;
  --teal:#2E7D8F;
  --ink:#1B2433;
  --muted:#5B6577;
  --line:#E4E9F2;
  --page:#F5F7FB;
  --card:#FFFFFF;
  --radius-card:16px;
  --radius-hero:20px;
  --radius-btn:10px;
  --radius-icon:12px;
  --shadow-1:0 1px 2px rgba(18,42,90,.05), 0 8px 24px -12px rgba(18,42,90,.12);
  --shadow-2:0 2px 4px rgba(18,42,90,.06), 0 14px 32px -14px rgba(18,42,90,.20);
  --shadow-3:0 16px 40px -16px rgba(18,42,90,.22);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 16px}
@media (min-width:768px){.container{padding:0 24px}}
@media (min-width:1024px){.container{padding:0 32px}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(245,247,251,.94);
  border-bottom:1px solid transparent;
  transition:background-color .2s ease-out, box-shadow .2s ease-out, border-color .2s ease-out;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.96);
  border-bottom-color:var(--line);
  box-shadow:0 10px 28px -20px rgba(18,42,90,.45);
}
.header-inner{display:flex;align-items:center;gap:12px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;border-radius:12px}
.brand-mark{
  width:40px;height:40px;border-radius:12px;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-weight:700;font-size:14px;letter-spacing:.5px;
  box-shadow:0 8px 18px -10px rgba(31,79,168,.7);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:15px;font-weight:700;color:var(--ink);letter-spacing:-.2px}
.brand-text em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.2px}
.nav-panel{
  flex:1 1 auto;min-width:0;display:none;
  background:#fff;border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow-1);padding:6px;
}
.nav-links{display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:none}
.nav-links::-webkit-scrollbar{display:none}
.nav-item{
  position:relative;white-space:nowrap;font-size:14px;color:var(--muted);
  padding:9px 14px;border-radius:10px;display:inline-flex;align-items:center;min-height:40px;
  transition:background-color .2s ease-out,color .2s ease-out;
}
.nav-item:hover{background:var(--brand-light);color:var(--brand-dark)}
.nav-item.active{background:var(--brand-light);color:var(--brand-dark);font-weight:600}
.nav-item.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;
  border-radius:2px;background:var(--brand);
}
.header-cta{display:none;gap:8px;flex:0 0 auto;margin-left:auto}
.menu-toggle{
  margin-left:auto;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--brand-dark);display:grid;place-items:center;font-size:17px;
  transition:box-shadow .2s ease-out,transform .2s ease-out;
}
.menu-toggle:hover{box-shadow:var(--shadow-1);transform:translateY(-2px)}
.mobile-panel{display:none;padding:4px 16px 16px}
.mobile-panel.open{display:block}
.mobile-card{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--shadow-3);padding:14px;
}
.mobile-links{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.mobile-links .nav-item{justify-content:center;border:1px solid var(--line);border-radius:10px;font-size:14px}
.mobile-cta{display:grid;gap:8px;margin-top:12px}
@media (min-width:1024px){
  .nav-panel{display:block}
  .header-cta{display:flex}
  .menu-toggle{display:none}
  .mobile-panel{display:none !important}
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 18px;border-radius:var(--radius-btn);
  font-size:14px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background-color .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px -12px rgba(31,79,168,.75)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 16px 30px -14px rgba(31,79,168,.7)}
.btn-signal{background:var(--signal);color:#fff;box-shadow:0 10px 22px -12px rgba(244,101,58,.75)}
.btn-signal:hover{background:#e0542b;transform:translateY(-2px);box-shadow:0 16px 30px -14px rgba(244,101,58,.7)}
.btn-ghost{background:#fff;color:var(--brand-dark);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow-1)}
.btn-block{width:100%}

/* ============ 页头横幅 ============ */
.page-banner{position:relative;overflow:hidden;background:#fff;border-bottom:1px solid var(--line)}
.banner-art{
  position:absolute;right:0;bottom:0;width:100%;height:100%;
  background:url('/assets/images/backpic/back-2.png') no-repeat right -80px bottom -60px;
  background-size:560px auto;opacity:.10;pointer-events:none;
}
.banner-inner{position:relative;z-index:2;padding-top:22px;padding-bottom:26px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.breadcrumb a{color:var(--brand);font-weight:500}
.breadcrumb a:hover{color:var(--brand-dark);text-decoration:underline}
.breadcrumb span{color:#c3cbdb}
.breadcrumb em{font-style:normal;color:var(--muted)}
.banner-main{display:grid;gap:24px;align-items:center;margin-top:16px}
@media (min-width:1024px){.banner-main{grid-template-columns:1.35fr .9fr;gap:40px}}
.banner-chip{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;border-radius:999px;
  background:var(--brand-light);color:var(--brand-dark);font-size:12px;font-weight:600;
}
.banner-copy h1{
  font-size:26px;line-height:34px;font-weight:700;letter-spacing:-.2px;
  margin:14px 0 12px;max-width:22em;
}
@media (min-width:768px){.banner-copy h1{font-size:32px;line-height:40px}}
.banner-copy p{font-size:15px;color:var(--muted);max-width:38em}
.banner-visual{
  position:relative;border-radius:var(--radius-hero);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-2);background:var(--brand-light);
}
.banner-visual img{width:100%;aspect-ratio:16/9;object-fit:cover}
.banner-float{
  position:absolute;left:14px;bottom:14px;right:14px;
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:10px 14px;display:flex;align-items:center;justify-content:space-between;gap:10px;
  box-shadow:var(--shadow-3);
}
.banner-float strong{font-size:14px;font-weight:700;display:block}
.banner-float span{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}

/* ============ 工具条 ============ */
.toolbar{
  margin-top:22px;display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px 16px;box-shadow:var(--shadow-1);
}
.toolbar-label{font-size:13px;color:var(--muted);font-weight:500}
.select{
  height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;
  padding:0 12px;font-size:14px;color:var(--ink);min-width:170px;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.select:hover{border-color:#cfd9ec}
.select:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,79,168,.12);outline:none}
.result-count{
  margin-left:auto;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;
  display:inline-flex;align-items:center;gap:6px;
}
.result-count i{color:var(--brand)}

/* ============ 板块 ============ */
.section{padding:48px 0}
@media (min-width:768px){.section{padding:64px 0}}
@media (min-width:1024px){.section{padding:80px 0}}
.section-tight{padding-top:36px}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:24px}
.section-title{font-size:26px;line-height:36px;font-weight:700;letter-spacing:-.2px}
.section-desc{font-size:14px;color:var(--muted);margin-top:10px;max-width:60em}
.section-link{font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px}
.section-link i{transition:transform .2s ease-out}
.section-link:hover i{transform:translateX(4px)}

/* ============ 看点大卡网格 ============ */
.point-grid{display:grid;gap:18px;grid-template-columns:1fr}
@media (min-width:1024px){.point-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}}
.point-card{
  display:grid;grid-template-columns:1fr;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.point-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#cfd9ec}
@media (min-width:640px){.point-card{grid-template-columns:40% 1fr}}
.point-media{position:relative;overflow:hidden;background:var(--brand-light)}
.point-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10}
@media (min-width:640px){.point-media img{aspect-ratio:auto;min-height:100%}}
.point-body{padding:16px;display:flex;flex-direction:column;gap:10px}
@media (min-width:768px){.point-body{padding:22px}}
.point-meta{
  font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums;
  display:inline-flex;align-items:center;gap:6px;
}
.point-meta i{color:var(--brand)}
.point-title{font-size:17px;line-height:26px;font-weight:600}
.point-text{font-size:14px;line-height:1.75;color:var(--muted)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:999px;
  background:var(--brand-light);color:var(--brand-dark);font-size:12px;font-weight:500;
}
.tag-plain{background:#F1F4FA;color:var(--muted)}
.badge{
  position:absolute;top:12px;left:12px;display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:600;color:#fff;
  background:var(--brand);box-shadow:0 6px 16px -8px rgba(18,42,90,.5);
}
.badge-signal{background:var(--signal)}
.badge-teal{background:var(--teal)}
.badge .dot{width:6px;height:6px;border-radius:50%;background:#fff;animation:pulse 1.6s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.3;transform:scale(.7)}}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;
  color:var(--brand);margin-top:auto;padding-top:4px;
}
.link-arrow i{transition:transform .2s ease-out}
.link-arrow:hover{color:var(--brand-dark)}
.link-arrow:hover i{transform:translateX(4px)}

/* ============ 观察维度 ============ */
.dim-grid{display:grid;gap:16px;grid-template-columns:1fr}
@media (min-width:640px){.dim-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.dim-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}}
.dim-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px;box-shadow:var(--shadow-1);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.dim-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#cfd9ec}
.dim-icon{
  width:44px;height:44px;border-radius:var(--radius-icon);background:var(--brand-light);
  color:var(--brand);display:grid;place-items:center;font-size:18px;margin-bottom:14px;
}
.dim-card h3{font-size:17px;line-height:26px;font-weight:600;margin-bottom:8px}
.dim-card p{font-size:14px;line-height:1.75;color:var(--muted)}
.dim-index{
  font-size:12px;font-weight:700;color:var(--brand);letter-spacing:.5px;
  font-variant-numeric:tabular-nums;display:block;margin-bottom:10px;
}

/* ============ 预约订阅 ============ */
.subscribe{
  background:var(--brand-light);border:1px solid #d5e0f7;border-radius:var(--radius-hero);
  padding:24px;display:grid;gap:24px;scroll-margin-top:96px;
}
@media (min-width:1024px){.subscribe{grid-template-columns:1fr 1.05fr;align-items:center;padding:40px;gap:40px}}
.subscribe h2{font-size:24px;line-height:34px;font-weight:700}
.subscribe p{font-size:14px;color:#41506b;margin-top:10px}
.subscribe-tips{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.subscribe-tips span{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:999px;
  background:#fff;border:1px solid #d5e0f7;font-size:12px;color:var(--brand-dark);font-weight:500;
}
.form-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:18px;box-shadow:var(--shadow-3)}
@media (min-width:768px){.form-panel{padding:22px}}
.form-row{display:grid;gap:12px}
@media (min-width:640px){.form-row{grid-template-columns:1fr 1fr}}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:13px;color:var(--muted);font-weight:500}
.field input,.field select{
  width:100%;height:46px;border:1px solid var(--line);border-radius:10px;background:#fff;
  padding:0 14px;font-size:14px;transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.field input:hover,.field select:hover{border-color:#cfd9ec}
.field input:focus,.field select:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,79,168,.12);outline:none}
.form-actions{margin-top:14px;display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.privacy-note{font-size:12px;color:var(--muted);margin-top:12px;line-height:1.7}
.form-success{
  display:none;align-items:center;gap:10px;margin-top:14px;padding:12px 14px;
  border-radius:12px;background:#EDF7F4;border:1px solid #cfe9e1;color:#1e6b5c;font-size:14px;
}
.form-success.show{display:flex}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px}
@media (min-width:1024px){.faq-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.faq-item:hover{border-color:#cfd9ec;box-shadow:var(--shadow-2)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;text-align:left;font-size:16px;font-weight:600;color:var(--ink);
  min-height:56px;
}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:999px;border:1px solid var(--line);
  display:grid;place-items:center;font-size:14px;color:var(--brand);background:#fff;
  transition:background-color .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.faq-item.open .faq-icon{background:var(--brand);color:#fff;border-color:var(--brand)}
.faq-a{display:none;padding:0 20px 18px}
.faq-item.open .faq-a{
  display:block;font-size:14px;line-height:1.8;color:var(--muted);
  border-left:2px solid var(--brand);margin:0 20px 18px;padding:0 0 0 14px;
}

/* ============ 底部 CTA ============ */
.cta-band{
  position:relative;overflow:hidden;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-hero);padding:28px 24px;box-shadow:var(--shadow-2);
  display:flex;flex-direction:column;gap:20px;
}
@media (min-width:1024px){.cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:40px;gap:32px}}
.cta-band::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--brand)}
.cta-band h2{font-size:24px;line-height:34px;font-weight:700;max-width:24em}
.cta-band p{font-size:14px;color:var(--muted);margin-top:10px;max-width:44em}
.cta-actions{display:flex;flex-wrap:wrap;gap:10px;flex:0 0 auto}

/* ============ 页脚 ============ */
.site-footer{background:#14203A;color:#c7d2e5;margin-top:64px;padding:52px 0 24px}
@media (min-width:1024px){.site-footer{margin-top:80px;padding:64px 0 28px}}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}}
.footer-brand .brand-mark{background:var(--brand)}
.footer-brand .brand-text strong{color:#fff}
.footer-brand .brand-text em{color:#8fa2c0}
.footer-note{font-size:13px;line-height:1.85;color:#93a3bf;margin-top:16px;max-width:30em}
.site-footer h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:#a8b7d0;transition:color .2s ease-out,transform .2s ease-out;display:inline-block}
.footer-links a:hover{color:#fff;transform:translateX(3px)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  border-top:1px solid rgba(255,255,255,.1);margin-top:36px;padding-top:20px;
  font-size:13px;color:#8fa2c0;line-height:1.7;
}

/* ============ 返回顶部 ============ */
.back-to-top{
  position:fixed;right:16px;bottom:20px;width:46px;height:46px;border-radius:12px;
  background:#fff;border:1px solid var(--line);color:var(--brand);font-size:16px;
  display:grid;place-items:center;box-shadow:var(--shadow-2);z-index:50;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s ease-out,background-color .2s ease-out,color .2s ease-out;
}
.back-to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.back-to-top:hover{background:var(--brand);color:#fff;border-color:var(--brand);transform:translateY(-2px)}

/* ============ 滚动渐隐提示 ============ */
.scroll-hint{
  display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-top:14px;
}
.scroll-hint i{color:var(--brand)}
@media (min-width:1024px){.scroll-hint{display:none}}

/* roulang page: category3 */
:root{
  --brand:#1F4FA8;
  --brand-dark:#163C82;
  --brand-light:#E8EEFB;
  --signal:#F4653A;
  --teal:#2E7D8F;
  --neutral:#8A93A6;
  --ink:#1B2433;
  --muted:#5B6577;
  --line:#E4E9F2;
  --page:#F5F7FB;
  --navy:#14203A;
  --card:#FFFFFF;
  --radius-card:16px;
  --radius-hero:20px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(18,42,90,.05), 0 8px 24px -12px rgba(18,42,90,.12);
  --shadow-2:0 2px 6px rgba(18,42,90,.08), 0 18px 40px -16px rgba(18,42,90,.22);
  --gap-section:48px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;transition:color .2s ease-out, background-color .2s ease-out, transform .2s ease-out, box-shadow .2s ease-out;}
button,input,select{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 16px;}
@media (min-width:768px){.container{padding:0 24px;}}
@media (min-width:1024px){.container{padding:0 32px;}}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand);color:#fff;padding:10px 16px;border-radius:0 0 10px 0;z-index:200;}
.skip-link:focus{left:0;}

/* ============ 站点头部 / 卡片化导航面板 ============ */
.site-header{position:sticky;top:0;z-index:60;padding:12px 0;background:transparent;transition:background .24s ease-out, box-shadow .24s ease-out;}
.site-header.is-scrolled{background:rgba(255,255,255,.94);box-shadow:0 10px 26px -20px rgba(18,42,90,.6);}
.nav-panel{
  display:flex;align-items:center;gap:14px;
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow-1);padding:10px 14px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-weight:700;font-size:14px;letter-spacing:.6px;flex-shrink:0;
}
.brand-text strong{display:block;font-size:15px;line-height:1.2;font-weight:700;letter-spacing:.2px;}
.brand-text em{display:block;font-style:normal;font-size:12px;line-height:1.4;color:var(--muted);letter-spacing:.4px;}
.nav-links{display:none;gap:2px;margin-left:auto;align-items:center;}
@media (min-width:1024px){.nav-links{display:flex;}}
.nav-item{position:relative;padding:9px 13px;border-radius:10px;font-size:15px;color:var(--muted);white-space:nowrap;}
.nav-item:hover{background:var(--brand-light);color:var(--brand-dark);transform:translateY(-2px);}
.nav-item.active{background:var(--brand-light);color:var(--brand);font-weight:600;}
.nav-item.active::after{content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;border-radius:2px;background:var(--brand);}
.nav-actions{display:none;gap:8px;flex-shrink:0;}
@media (min-width:1024px){.nav-actions{display:flex;}}
.nav-toggle{display:inline-flex;flex-direction:column;justify-content:center;align-items:center;gap:4px;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);background:#fff;margin-left:auto;}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .2s ease-out, opacity .2s ease-out;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
@media (min-width:1024px){.nav-toggle{display:none;}}
.mobile-panel{display:none;margin-top:10px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-2);padding:14px;}
.mobile-panel.open{display:block;}
.mobile-panel .m-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;}
.mobile-panel .m-item{display:flex;align-items:center;min-height:44px;padding:10px 12px;border-radius:10px;background:var(--page);font-size:14px;color:var(--muted);border:1px solid transparent;}
.mobile-panel .m-item:hover{background:var(--brand-light);color:var(--brand-dark);}
.mobile-panel .m-item.active{background:var(--brand-light);color:var(--brand);font-weight:600;border-color:#d3ddf6;}
.mobile-panel .m-cta{display:block;text-align:center;margin-top:10px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 18px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;white-space:nowrap;
  transition:transform .2s ease-out, background-color .2s ease-out, box-shadow .2s ease-out, border-color .2s ease-out, color .2s ease-out;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-signal{background:var(--signal);color:#fff;}
.btn-signal:hover{background:#e0552b;transform:translateY(-2px);box-shadow:0 14px 28px -16px rgba(244,101,58,.9);}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--brand-dark);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow-1);}
.btn-sm{padding:8px 14px;font-size:14px;min-height:40px;}

/* ============ 通用卡片 / 徽章 / 区块标题 ============ */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);transition:transform .2s ease-out, box-shadow .2s ease-out, border-color .2s ease-out;}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#d8e1f3;}
.chip{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;font-size:12px;line-height:1.6;background:var(--brand-light);color:var(--brand-dark);font-weight:600;}
.chip-signal{background:#FDECE6;color:#C4401B;}
.chip-teal{background:#E4F0F2;color:#226370;}
.chip-neutral{background:#EEF1F6;color:var(--muted);}
.section{padding:48px 0;scroll-margin-top:110px;}
@media (min-width:768px){.section{padding:64px 0;}}
@media (min-width:1024px){.section{padding:76px 0;}}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:24px;}
.section-head h2{font-size:26px;line-height:36px;font-weight:700;letter-spacing:-.2px;}
.section-head p{font-size:14px;color:var(--muted);max-width:620px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ============ 页头 ============ */
.page-hero{
  padding:36px 0 32px;
  background:
    linear-gradient(100deg, rgba(245,247,251,.97) 0%, rgba(232,238,251,.88) 46%, rgba(245,247,251,.66) 100%),
    url('/assets/images/backpic/back-1.webp') center right / cover no-repeat;
  border-bottom:1px solid var(--line);
}
@media (min-width:768px){.page-hero{padding:52px 0 44px;}}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:16px;}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#c3cbdc;}
.breadcrumb [aria-current]{color:#6f7a90;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:999px;background:#fff;border:1px solid #d9e2f7;color:var(--brand-dark);font-size:12px;font-weight:600;box-shadow:0 1px 2px rgba(18,42,90,.04);}
.eyebrow .dot{width:7px;height:7px;border-radius:999px;background:var(--signal);}
.page-hero h1{font-size:26px;line-height:34px;font-weight:700;letter-spacing:-.2px;max-width:820px;margin:16px 0 12px;}
@media (min-width:768px){.page-hero h1{font-size:32px;line-height:40px;}}
.page-hero .lede{font-size:15px;color:var(--muted);max-width:760px;}
.anchor-bar{display:flex;gap:8px;overflow-x:auto;padding:18px 2px 2px;scrollbar-width:none;}
.anchor-bar::-webkit-scrollbar{display:none;}
.anchor-bar a{
  flex:0 0 auto;padding:9px 15px;border-radius:999px;background:#fff;border:1px solid var(--line);
  font-size:14px;color:var(--muted);box-shadow:0 1px 2px rgba(18,42,90,.04);min-height:40px;display:inline-flex;align-items:center;
}
.anchor-bar a:hover{color:var(--brand);border-color:#c8d6f2;transform:translateY(-2px);box-shadow:var(--shadow-1);}

/* ============ 横向滚动流 ============ */
.rail-wrap{position:relative;}
.rail-wrap::after{content:"";position:absolute;top:0;right:0;width:56px;height:100%;pointer-events:none;background:linear-gradient(90deg, rgba(245,247,251,0), var(--page));}
.rail{display:flex;gap:16px;overflow-x:auto;padding:4px 4px 18px;scroll-snap-type:x mandatory;scrollbar-width:none;-webkit-overflow-scrolling:touch;}
.rail::-webkit-scrollbar{display:none;}
.rail-card{flex:0 0 auto;width:78vw;max-width:340px;scroll-snap-align:start;display:flex;flex-direction:column;}
@media (min-width:768px){.rail-card{width:320px;}}
.cover{position:relative;aspect-ratio:16/9;border-radius:var(--radius-card);overflow:hidden;background:#e9eef8;}
.cover img{width:100%;height:100%;object-fit:cover;}
.cover .badge{position:absolute;top:12px;left:12px;}
.cover .duration{position:absolute;right:12px;bottom:12px;background:rgba(20,32,58,.84);color:#fff;font-size:12px;line-height:1.5;padding:4px 10px;border-radius:999px;}
.rail-card h3{font-size:17px;line-height:26px;font-weight:600;margin:14px 0 6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rail-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);margin-top:12px;}
.text-link .arrow{transition:transform .2s ease-out;}
.text-link:hover .arrow{transform:translateX(4px);}

/* ============ 纵向大图堆叠 ============ */
.stack-grid{display:grid;gap:28px;}
@media (min-width:768px){
  .stack-grid{grid-template-columns:1fr 1fr;gap:32px 28px;}
  .stack-item:nth-child(even){margin-top:52px;}
}
.stack-item .cover{border-radius:var(--radius-hero);box-shadow:var(--shadow-1);}
.stack-item h3{font-size:18px;line-height:28px;font-weight:600;margin:16px 0 8px;}
.stack-item p{font-size:14px;color:var(--muted);max-width:620px;}
.stack-foot{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:12px;font-size:13px;color:var(--muted);}

/* ============ 高光集锦 ============ */
.digest-grid{display:grid;gap:14px;}
@media (min-width:640px){.digest-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:1024px){.digest-grid{grid-template-columns:1fr 1fr 1fr;}}
.digest-item{display:flex;gap:14px;padding:14px;}
.digest-thumb{width:124px;flex:0 0 124px;aspect-ratio:16/9;border-radius:12px;overflow:hidden;background:#e9eef8;}
.digest-thumb img{width:100%;height:100%;object-fit:cover;}
.digest-item h3{font-size:15px;line-height:24px;font-weight:600;margin-bottom:6px;}
.digest-item .meta{font-size:12px;color:var(--muted);}

/* ============ 收录概况 + 时长索引 ============ */
.stat-strip{display:grid;gap:14px;grid-template-columns:1fr 1fr;}
@media (min-width:1024px){.stat-strip{grid-template-columns:repeat(4,1fr);}}
.stat-card{padding:20px;}
.stat-card .value{font-size:28px;line-height:1.2;font-weight:700;color:var(--brand);letter-spacing:-.4px;}
.stat-card .label{font-size:13px;color:var(--muted);margin-top:6px;}
.index-list{margin-top:22px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);overflow:hidden;}
.index-row{display:grid;grid-template-columns:1fr auto;gap:8px 16px;align-items:center;padding:16px 20px;border-bottom:1px solid var(--line);font-size:14px;transition:background-color .2s ease-out;}
.index-row:last-child{border-bottom:0;}
.index-row:hover{background:#F7F9FE;}
.index-row .name{font-weight:600;color:var(--ink);}
.index-row .sub{font-size:12px;color:var(--muted);grid-column:1 / -1;}
@media (min-width:768px){
  .index-row{grid-template-columns:2fr 1fr 1fr 1fr;}
  .index-row .sub{grid-column:auto;}
  .index-row .cell{color:var(--muted);}
}

/* ============ FAQ ============ */
.faq-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);padding:6px 24px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 0;font-size:16px;font-weight:600;cursor:pointer;list-style:none;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";flex:0 0 auto;width:26px;height:26px;border-radius:8px;background:var(--brand-light);color:var(--brand);display:grid;place-items:center;font-size:16px;font-weight:700;line-height:1;}
.faq-item[open] summary::after{content:"−";}
.faq-item[open] summary{color:var(--brand-dark);}
.faq-answer{border-left:2px solid var(--brand);padding:0 0 20px 16px;color:var(--muted);font-size:14.5px;}

/* ============ 底部 CTA ============ */
.cta-card{
  background:linear-gradient(120deg,#EDF2FD 0%, #E8EEFB 55%, #F3F7FF 100%);
  border:1px solid #D9E2F7;border-radius:var(--radius-hero);padding:28px 24px;box-shadow:var(--shadow-1);
}
@media (min-width:1024px){.cta-card{padding:44px 40px;}}
.cta-card h2{font-size:24px;line-height:34px;font-weight:700;letter-spacing:-.2px;}
.cta-card p{font-size:15px;color:var(--muted);margin-top:10px;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--navy);color:#C7D2E6;padding:52px 0 24px;margin-top:24px;}
.footer-grid{display:grid;gap:32px;}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;}}
.footer-brand .brand{margin-bottom:14px;}
.footer-brand .brand-mark{background:var(--brand);}
.footer-brand .brand-text strong{color:#fff;}
.footer-brand .brand-text em{color:#93A4C4;}
.footer-note{font-size:13.5px;line-height:1.8;color:#9DAECB;max-width:340px;}
.site-footer h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:#A9B6CE;}
.footer-links a:hover{color:#fff;transform:translateX(2px);}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;border-top:1px solid rgba(255,255,255,.12);margin-top:34px;padding-top:20px;font-size:13px;color:#8C9CBC;}

/* ============ 返回顶部 ============ */
.back-top{
  position:fixed;right:20px;bottom:24px;width:46px;height:46px;border-radius:14px;z-index:55;
  background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-2);color:var(--brand-dark);
  display:none;place-items:center;font-size:18px;line-height:1;
}
.back-top.show{display:grid;}
.back-top:hover{color:var(--brand);transform:translateY(-2px);}

@media (min-width:1024px){
  :root{--gap-section:76px;}
}