/* roulang page: index */
:root{
  --primary:#1F63D6;
  --primary-hover:#1A55BB;
  --primary-deep:#14408C;
  --primary-soft:#E8F0FE;
  --accent:#FF6A3D;
  --accent-hover:#F0552A;
  --bg:#F6F8FC;
  --surface:#FFFFFF;
  --line:#E4E9F2;
  --text-strong:#101B2D;
  --text:#3B4657;
  --text-muted:#6B7688;
  --success:#14A06E;
  --danger:#E5484D;
  --r-card:16px;
  --r-lg:20px;
  --r-md:12px;
  --r-sm:10px;
  --s1:0 1px 2px rgba(16,27,45,.06), 0 1px 3px rgba(16,27,45,.04);
  --s2:0 8px 24px -8px rgba(16,27,45,.12);
  --s3:0 16px 40px -12px rgba(31,99,214,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  letter-spacing:.01em;
  padding-bottom:76px;
}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:var(--primary);text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:var(--primary-hover);}
h1,h2,h3,h4,h5,h6{margin:0;color:var(--text-strong);line-height:1.3;letter-spacing:-.01em;font-weight:700;}
h1{font-size:40px;}
h2{font-size:32px;}
h3{font-size:22px;font-weight:600;}
h4{font-size:17px;font-weight:600;}
p{margin:0 0 16px;}
ul{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible,label:focus-visible{
  outline:none;
  box-shadow:0 0 0 3px rgba(31,99,214,.28);
  border-radius:var(--r-sm);
}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-alt{background:var(--surface);}
.skip-note{position:absolute;left:-9999px;}
/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;background:rgba(255,255,255,.96);
  border-bottom:1px solid transparent;
  transition:box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 6px 20px -14px rgba(16,27,45,.4);}
.header-inner{display:flex;align-items:center;gap:28px;height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:var(--text-strong);white-space:nowrap;letter-spacing:-.01em;}
.brand:hover{color:var(--primary);}
.brand-mark{
  width:28px;height:28px;border-radius:9px;flex:0 0 28px;
  background:linear-gradient(135deg,#1F63D6,#3A82F0);
  color:#fff;font-size:14px;font-weight:700;line-height:1;
  display:flex;align-items:center;justify-content:center;
}
.nav-main{display:flex;align-items:center;gap:32px;margin-left:auto;}
.nav-main a{
  position:relative;font-size:16px;font-weight:500;color:var(--text);
  padding:22px 0;white-space:nowrap;
}
.nav-main a::after{
  content:"";position:absolute;left:0;right:0;bottom:14px;height:2px;
  background:var(--primary);border-radius:2px;transform:scaleX(0);
  transform-origin:center;transition:transform .18s var(--ease);
}
.nav-main a:hover{color:var(--primary);}
.nav-main a:hover::after{transform:scaleX(1);}
.nav-main a.is-active{color:var(--primary);font-weight:600;}
.nav-main a.is-active::after{transform:scaleX(1);}
.header-cta{display:flex;align-items:center;gap:12px;}
.header-cta-mobile{display:none;}
/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:600;font-size:15px;line-height:1.3;
  padding:12px 22px;border-radius:var(--r-sm);border:1px solid transparent;
  cursor:pointer;transition:background-color .18s var(--ease),color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-hover);color:#fff;transform:translateY(-1px);box-shadow:0 12px 24px -12px rgba(31,99,214,.65);}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 1px 2px rgba(0,0,0,.2);}
.btn-outline{background:transparent;color:var(--primary);border-color:var(--primary);}
.btn-outline:hover{background:var(--primary-soft);color:var(--primary);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px);}
.btn-accent:active{transform:translateY(0);}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn-block{width:100%;}
/* ---------- countdown ---------- */
.countdown-bar{background:var(--primary-deep);color:#fff;}
.countdown-inner{
  display:flex;align-items:center;gap:18px;flex-wrap:wrap;
  min-height:64px;padding-top:10px;padding-bottom:10px;
}
.cd-label{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(255,255,255,.14);color:#fff;border-radius:999px;
  padding:5px 14px;font-size:13px;font-weight:600;letter-spacing:.02em;
}
.cd-timer{display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
.cd-unit{
  display:flex;align-items:baseline;gap:4px;
  background:rgba(255,255,255,.12);border-radius:8px;padding:6px 10px;
}
.cd-num{font-size:26px;font-weight:700;font-variant-numeric:tabular-nums;line-height:1;color:#FFA486;}
.cd-cap{font-size:12px;color:rgba(255,255,255,.72);}
.countdown-inner .btn{margin-left:auto;}
/* ---------- hero ---------- */
.hero{
  background:linear-gradient(180deg,#E8F0FE 0%,#FFFFFF 66%);
  padding:56px 0 72px;
  overflow:hidden;
}
.hero-copy{padding-top:8px;}
.hero-title{font-size:40px;line-height:1.28;margin:18px 0 16px;max-width:16em;}
.hero-sub{font-size:17px;color:var(--text);margin:0 0 28px;max-width:32em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-stats{display:flex;align-items:center;flex-wrap:wrap;gap:0;}
.stat{display:flex;align-items:baseline;gap:8px;padding-right:24px;}
.stat+.stat{padding-left:24px;border-left:1px solid var(--line);}
.stat b{font-size:26px;font-weight:700;color:var(--text-strong);font-variant-numeric:tabular-nums;line-height:1;}
.stat span{font-size:13px;color:var(--text-muted);}
.hero-media{
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--s2);
  aspect-ratio:16/10;background:#E8F0FE;
}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-pills{display:flex;flex-wrap:wrap;gap:12px;margin-top:48px;}
.pill{
  display:inline-flex;align-items:center;gap:7px;
  background:var(--primary-soft);color:var(--primary);
  border-radius:999px;padding:8px 16px;font-size:13px;font-weight:500;
}
.pill i{font-size:12px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--primary-soft);color:var(--primary);
  border-radius:999px;padding:6px 14px;font-size:13px;font-weight:600;
}
.badge-accent{background:rgba(255,106,61,.14);color:#C7410F;}
.badge-soft{background:#F1F4F9;color:var(--text-muted);font-weight:500;}
/* ---------- section head ---------- */
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:40px;flex-wrap:wrap;
}
.section-head p{color:var(--text-muted);font-size:15px;margin:10px 0 0;max-width:46em;}
.link-more{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px;}
.link-more:hover{gap:10px;}
/* ---------- selling points ---------- */
.sell-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:36px;box-shadow:var(--s1);height:100%;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease);
}
.sell-card:hover{transform:translateY(-2px);box-shadow:var(--s3);}
.sell-icon{
  width:48px;height:48px;border-radius:14px;background:var(--primary-soft);
  color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:19px;
}
.sell-card h3{margin:22px 0 12px;}
.sell-card p{color:var(--text);font-size:15px;margin-bottom:22px;}
.sell-data{display:flex;align-items:baseline;gap:10px;padding-top:18px;border-top:1px solid var(--line);}
.sell-data b{font-size:24px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;line-height:1;}
.sell-data span{font-size:13px;color:var(--text-muted);}
.sell-list{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--s1);padding:6px 28px;height:100%;}
.sell-row{display:flex;gap:18px;padding:24px 0;border-bottom:1px solid var(--line);}
.sell-row:last-child{border-bottom:0;}
.sell-num{
  font-size:14px;font-weight:700;color:var(--primary);
  font-variant-numeric:tabular-nums;min-width:30px;padding-top:3px;
}
.sell-row h4{margin-bottom:6px;font-size:17px;}
.sell-row p{margin:0;font-size:14px;color:var(--text-muted);line-height:1.7;}
/* ---------- wall ---------- */
.wall-item{
  position:relative;display:block;border-radius:var(--r-card);overflow:hidden;
  background:#E8F0FE;box-shadow:var(--s1);
}
.wall-item img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.wall-item::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(16,27,45,.55),rgba(16,27,45,0) 58%);
  opacity:0;transition:opacity .18s var(--ease);
}
.wall-item:hover img{transform:scale(1.04);}
.wall-item:hover::after{opacity:1;}
.wall-cap{
  position:absolute;left:18px;bottom:16px;z-index:2;color:#fff;
  font-size:14px;font-weight:600;opacity:0;transform:translateY(6px);
  transition:opacity .18s var(--ease),transform .18s var(--ease);
}
.wall-item:hover .wall-cap{opacity:1;transform:translateY(0);}
.wall-lg{height:400px;}
.wall-sm{height:192px;}
.wall-md{height:220px;}
.wall-stack{display:grid;grid-template-rows:1fr 1fr;gap:16px;height:400px;}
.grid-space-y{margin-top:16px;}
/* ---------- posts ---------- */
.post-feature{
  display:block;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--s1);height:100%;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease);
}
.post-feature:hover{transform:translateY(-2px);box-shadow:var(--s3);color:var(--text);}
.post-feature-img{aspect-ratio:16/9;overflow:hidden;background:#E8F0FE;}
.post-feature-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.post-feature:hover .post-feature-img img{transform:scale(1.04);}
.post-feature-body{padding:26px 28px 30px;}
.post-feature-body h3{font-size:21px;margin:14px 0 12px;line-height:1.45;}
.post-feature-body p{color:var(--text-muted);font-size:14px;margin:0 0 18px;}
.post-title-2{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
  overflow:hidden;
}
.post-sum-2{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-muted);flex-wrap:wrap;}
.post-meta .dot{color:var(--line);}
.post-list{border-top:1px solid var(--line);}
.post-row{
  display:flex;align-items:center;gap:18px;padding:20px 0;
  border-bottom:1px solid var(--line);color:var(--text);
}
.post-row:hover{color:var(--text);}
.post-row:hover .post-row-title{color:var(--primary);}
.post-thumb{
  width:96px;height:72px;flex:0 0 96px;object-fit:cover;border-radius:8px;background:#E8F0FE;
  transition:transform .18s var(--ease);
}
.post-row:hover .post-thumb{transform:translateY(-2px);}
.post-row-body{flex:1;min-width:0;}
.post-row-title{font-size:16px;font-weight:600;margin:0 0 8px;line-height:1.5;transition:color .18s var(--ease);}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-card);
  padding:48px 24px;text-align:center;color:var(--text-muted);background:var(--surface);
}
.empty-state i{font-size:26px;color:#B9C3D4;display:block;margin-bottom:14px;}
.empty-state p{margin:0 0 18px;font-size:14px;}
/* ---------- cta + form ---------- */
.cta-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:48px;box-shadow:var(--s2);
}
.cta-card h2{font-size:30px;margin-bottom:14px;}
.cta-card > .grid-x > .cell > p{color:var(--text-muted);font-size:15px;}
.check-list li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--text);margin-bottom:12px;}
.check-list i{color:var(--success);font-size:14px;margin-top:6px;}
.form-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--s2);padding:30px;
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--text-strong);margin-bottom:8px;}
.input{
  width:100%;height:48px;border:1px solid var(--line);border-radius:var(--r-sm);
  padding:0 14px;font-size:15px;color:var(--text-strong);background:#fff;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(31,99,214,.16);}
select.input{appearance:none;background-image:linear-gradient(45deg,transparent 50%,#6B7688 50%),linear-gradient(135deg,#6B7688 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;background-size:5px 5px;background-repeat:no-repeat;}
.phone-field{
  display:flex;align-items:center;border:1px solid var(--line);border-radius:var(--r-sm);
  overflow:hidden;background:#fff;transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.phone-field:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(31,99,214,.16);}
.phone-field.is-error{border-color:var(--danger);}
.phone-prefix{
  display:flex;align-items:center;height:48px;padding:0 14px;
  font-size:15px;color:var(--text-muted);background:#F8FAFD;border-right:1px solid var(--line);
}
.phone-field input{flex:1;min-width:0;height:48px;border:0;padding:0 14px;font-size:15px;color:var(--text-strong);background:transparent;outline:none;}
.agree{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text-muted);margin:6px 0 20px;}
.agree input{margin-top:4px;width:16px;height:16px;accent-color:var(--primary);flex:0 0 16px;}
.form-note{font-size:12px;color:var(--text-muted);margin:14px 0 0;text-align:center;}
.err{display:none;color:var(--danger);font-size:13px;margin-top:8px;}
.form-msg{display:none;margin:14px 0 0;font-size:14px;color:var(--success);font-weight:600;}
/* ---------- faq ---------- */
.faq-list{max-width:920px;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:20px 20px;font-size:17px;font-weight:600;color:var(--text-strong);
  min-height:48px;transition:background-color .18s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;
  color:var(--text-muted);transition:transform .24s var(--ease);
}
.faq-item summary:hover{background:#FAFBFE;}
.faq-item[open] summary{background:#F6F8FC;box-shadow:inset 3px 0 0 var(--primary);}
.faq-item[open] summary::after{transform:rotate(180deg);}
.faq-body{padding:2px 20px 22px 23px;font-size:15px;color:var(--text);}
.faq-body p{margin:0;}
/* ---------- footer ---------- */
.site-footer{background:#F1F4F9;border-top:1px solid var(--line);}
.footer-main{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding:64px 0 44px;
}
.footer-col h4{font-size:15px;margin-bottom:18px;}
.footer-col a{display:block;font-size:14px;color:var(--text);margin-bottom:12px;}
.footer-col a:hover{color:var(--primary);}
.footer-brand{font-size:19px;font-weight:700;color:var(--text-strong);display:inline-flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand:hover{color:var(--primary);}
.footer-desc{font-size:14px;color:var(--text-muted);margin:0;max-width:24em;}
.footer-contact{font-size:14px;color:var(--text-muted);line-height:2;}
.footer-bottom{background:#0F1B2D;color:rgba(255,255,255,.72);font-size:13px;}
.footer-bottom .container{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  flex-wrap:wrap;padding-top:18px;padding-bottom:18px;
}
.footer-bottom a{color:rgba(255,255,255,.86);}
.footer-bottom a:hover{color:#fff;}
/* ---------- mobile tabbar ---------- */
.mobile-tabbar{display:none;}
@media (max-width:1023px){
  .nav-main,.header-cta .btn{display:none;}
  .header-cta-mobile{display:inline-flex;}
  .mobile-tabbar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:90;
    height:60px;background:#fff;border-top:1px solid var(--line);
    box-shadow:0 -6px 20px rgba(16,27,45,.06);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .mobile-tabbar a{
    flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;
    gap:3px;min-width:44px;min-height:44px;font-size:11px;color:#6B7688;
    position:relative;font-weight:500;
  }
  .mobile-tabbar a i{font-size:17px;line-height:1;}
  .mobile-tabbar a.is-active{color:var(--primary);font-weight:600;}
  .mobile-tabbar a.is-active::before{
    content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
    width:28px;height:2px;background:var(--primary);border-radius:0 0 2px 2px;
  }
  .footer-main{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px;}
}
@media (max-width:900px){
  .header-inner{gap:16px;}
  .hero{padding:36px 0 52px;}
  .hero-title{font-size:30px;}
  .hero-media{margin-top:32px;}
  .cta-card{padding:32px 24px;}
  .wall-lg,.wall-stack{height:280px;}
  .wall-sm{height:132px;}
  .wall-md{height:180px;}
}
@media (max-width:767px){
  body{font-size:15px;padding-bottom:80px;}
  h1{font-size:28px;}
  h2{font-size:24px;}
  h3{font-size:18px;}
  .section{padding:52px 0;}
  .section-tight{padding:44px 0;}
  .container{padding-left:16px;padding-right:16px;}
  .hero-title{font-size:28px;}
  .hero-sub{font-size:15px;}
  .hero-actions .btn{flex:1 1 auto;}
  .hero-stats{gap:0;flex-direction:column;align-items:flex-start;}
  .stat{padding:10px 0;width:100%;}
  .stat+.stat{padding-left:0;border-left:0;border-top:1px solid var(--line);}
  .hero-pills{margin-top:32px;}
  .countdown-inner{gap:10px;}
  .countdown-inner .btn{margin-left:0;width:100%;}
  .cd-num{font-size:22px;}
  .wall-lg,.wall-stack,.wall-sm,.wall-md{height:220px;}
  .wall-stack{grid-template-rows:1fr;height:auto;gap:12px;}
  .wall-stack .wall-sm{height:200px;}
  .wall-cap{position:static;opacity:1;transform:none;color:var(--text-strong);font-size:13px;padding:10px 2px 0;background:none;}
  .wall-item::after{display:none;}
  .grid-space-y{margin-top:12px;}
  .sell-card,.sell-list{padding:24px 20px;}
  .sell-list{padding:6px 20px;}
  .post-thumb{width:76px;height:60px;flex:0 0 76px;}
  .post-feature-body{padding:20px 20px 24px;}
  .cta-card{padding:26px 20px;}
  .form-card{padding:22px 20px;}
  .footer-main{grid-template-columns:1fr;gap:28px;}
  .footer-bottom .container{flex-direction:column;text-align:center;justify-content:center;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important;}
  .card:hover,.wall-item:hover img,.post-row:hover .post-thumb,.post-feature:hover{transform:none !important;}
}

/* roulang page: article */
:root{
  --primary:#1F63D6;
  --primary-deep:#14408C;
  --primary-soft:#E8F0FE;
  --accent:#FF6A3D;
  --bg:#F6F8FC;
  --surface:#FFFFFF;
  --line:#E4E9F2;
  --text-strong:#101B2D;
  --text:#3B4657;
  --text-muted:#6B7688;
  --ok:#14A06E;
  --danger:#E5484D;
  --r-card:16px;
  --r-lg:20px;
  --r-img:12px;
  --r-btn:10px;
  --s1:0 1px 2px rgba(16,27,45,.06),0 1px 3px rgba(16,27,45,.04);
  --s2:0 8px 24px -8px rgba(16,27,45,.12);
  --s-hover:0 16px 40px -12px rgba(31,99,214,.22);
  --t:180ms cubic-bezier(.2,.7,.3,1);
  --header-h:68px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--bg);
  padding-bottom:0;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--primary)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;color:var(--text-strong);font-weight:700;line-height:1.3;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(31,99,214,.16)}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(31,99,214,.28);border-radius:6px}
.skip-link{position:absolute;left:-9999px;top:0;background:#fff;padding:10px 16px;border-radius:0 0 10px 0;z-index:200}
.skip-link:focus{left:0}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1320px}}
@media (max-width:640px){.container{padding:0 16px}}

/* 通用按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:16px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform var(--t),box-shadow var(--t),background-color var(--t),color var(--t),border-color var(--t);
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:#1B57BC;color:#fff;transform:translateY(-1px);box-shadow:var(--s-hover)}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 1px 2px rgba(16,27,45,.18)}
.btn-outline{background:#fff;color:var(--primary);border-color:var(--primary)}
.btn-outline:hover{background:var(--primary-soft);color:var(--primary);border-color:var(--primary)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#F0552A;color:#fff;transform:translateY(-1px);box-shadow:0 12px 30px -10px rgba(255,106,61,.5)}
.btn-sm{height:40px;padding:0 18px;font-size:15px}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 12px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary);
  font-size:13px;font-weight:600;letter-spacing:0;
}
.badge-accent{background:#FFEDE6;color:#C93F16}

/* 头部导航 */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid transparent;
  transition:box-shadow var(--t),border-color var(--t);
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--s1)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:var(--header-h)}
.brand{display:flex;align-items:center;gap:10px;color:var(--text-strong);font-size:18px;font-weight:700;letter-spacing:-.01em}
.brand:hover{color:var(--text-strong)}
.brand-mark{
  width:28px;height:28px;border-radius:9px;flex:none;
  display:grid;place-items:center;
  background:linear-gradient(135deg,#1F63D6 0%,#14408C 100%);
  color:#fff;font-size:15px;font-weight:700;line-height:1;
}
.nav-main{display:flex;align-items:center;gap:32px}
.nav-main a{
  position:relative;padding:6px 0;font-size:16px;font-weight:500;color:var(--text);
}
.nav-main a::after{
  content:"";position:absolute;left:0;right:0;bottom:-21px;height:2px;
  background:var(--primary);border-radius:2px;opacity:0;transform:scaleX(.4);
  transition:opacity var(--t),transform var(--t);
}
.nav-main a:hover{color:var(--primary)}
.nav-main a:hover::after{opacity:.35;transform:scaleX(1)}
.nav-main a.is-active{color:var(--primary)}
.nav-main a.is-active::after{opacity:1;transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px}
.icon-btn{
  display:none;width:44px;height:44px;border-radius:12px;
  align-items:center;justify-content:center;
  background:var(--primary);color:#fff;border:1px solid transparent;
  transition:background-color var(--t),transform var(--t);
}
.icon-btn:hover{background:#1B57BC;color:#fff;transform:translateY(-1px)}
.icon-btn svg{width:22px;height:22px}

/* 移动底部 Tab */
.mobile-tab{display:none}

/* 面包屑 */
.crumb-bar{padding:20px 0 0}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-muted)}
.breadcrumb a{color:var(--text-muted)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:#C3CCDA}
.breadcrumb .current{color:var(--text-muted);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* 文章头 */
.article-hero{padding:24px 0 32px;border-bottom:1px solid var(--line)}
.article-hero h1{
  font-size:36px;line-height:1.28;margin:16px 0 18px;max-width:900px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;color:var(--text-muted)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#C3CCDA}

/* 正文布局 */
.article-wrap{padding:40px 0 8px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:48px}
.article-main{min-width:0}
.article-body{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--s1);padding:32px;
}
.article-content{font-size:16px;line-height:1.75;color:var(--text);letter-spacing:.01em;overflow-wrap:break-word;word-break:break-word}
.article-content > *:first-child{margin-top:0}
.article-content h2{
  font-size:24px;line-height:1.35;font-weight:700;color:var(--text-strong);
  margin:40px 0 16px;padding-left:14px;position:relative;
}
.article-content h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:4px;background:var(--primary);
}
.article-content h3{font-size:20px;font-weight:600;color:var(--text-strong);margin:32px 0 12px}
.article-content h4{font-size:17px;font-weight:600;color:var(--text-strong);margin:24px 0 10px}
.article-content p{margin:0 0 20px}
.article-content ul,.article-content ol{margin:0 0 20px;padding-left:20px}
.article-content ul li{list-style:disc;margin-bottom:8px}
.article-content ol li{list-style:decimal;margin-bottom:8px}
.article-content li::marker{color:var(--primary)}
.article-content a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.article-content a:hover{color:var(--primary-deep)}
.article-content blockquote{
  margin:24px 0;padding:16px 20px;border-left:3px solid var(--primary);
  background:var(--primary-soft);border-radius:0 12px 12px 0;color:var(--text-strong);
}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content img{border-radius:var(--r-img);margin:24px auto;max-width:100%;height:auto}
.article-content figure{margin:24px 0}
.article-content figcaption{font-size:13px;color:var(--text-muted);text-align:center;margin-top:8px}
.article-content table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;background:#fff}
.article-content thead th{
  text-align:left;padding:12px 14px;color:var(--primary);font-weight:600;
  border-bottom:1px solid var(--line);background:#fff;
}
.article-content tbody td{padding:12px 14px;border-bottom:1px solid var(--line);color:var(--text)}
.article-content tbody tr:nth-child(odd){background:var(--primary-soft)}
.article-content code{
  background:#F1F4F9;padding:2px 6px;border-radius:6px;font-size:14px;color:var(--primary-deep);
}
.article-content hr{border:0;border-top:1px solid var(--line);margin:32px 0}

/* 空态 */
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-card);
  padding:56px 24px;text-align:center;color:var(--text-muted);background:#FBFCFE;
}
.empty-state svg{width:44px;height:44px;color:#B7C2D4;margin-bottom:14px}
.empty-state p{font-size:16px;margin-bottom:20px;color:var(--text-muted)}

/* 侧栏 */
.article-side{display:none}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--s1);padding:24px;margin-bottom:24px;
}
.side-card h3{font-size:17px;font-weight:600;margin-bottom:14px}
.side-list li + li{border-top:1px solid var(--line)}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 0;font-size:15px;color:var(--text);
}
.side-list a:hover{color:var(--primary)}
.side-list svg{width:16px;height:16px;flex:none;color:#B7C2D4}
.side-note{font-size:14px;color:var(--text-muted);line-height:1.8;margin-bottom:16px}
.side-card .btn{width:100%}

/* 文末标签与操作 */
.article-foot{margin-top:32px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary);font-size:13px;font-weight:500;
  transition:background-color var(--t),color var(--t);
}
.tag:hover{background:#DCE8FD;color:var(--primary-deep)}
.article-actions{
  display:flex;flex-wrap:wrap;gap:14px;padding-top:28px;border-top:1px solid var(--line);
}

/* 相关推荐 */
.section{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px}
.section-head h2{font-size:28px}
.link-more{font-size:15px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px}
.link-more:hover{color:var(--primary-deep)}
.recommend-row{margin-left:-12px;margin-right:-12px}
.recommend-row > .cell{padding-left:12px;padding-right:12px;margin-bottom:24px}
.rec-card{
  display:block;height:100%;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--s1);overflow:hidden;
  transition:transform var(--t),box-shadow var(--t);
}
.rec-card:hover{transform:translateY(-2px);box-shadow:var(--s-hover)}
.rec-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--primary-soft)}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 500ms cubic-bezier(.2,.7,.3,1)}
.rec-card:hover .rec-thumb img{transform:scale(1.04)}
.rec-body{padding:20px 22px 24px}
.rec-card h3{font-size:18px;font-weight:600;margin-bottom:8px;color:var(--text-strong)}
.rec-card p{font-size:14px;color:var(--text-muted);line-height:1.7;margin-bottom:12px}
.rec-date{font-size:13px;color:#93A0B4}

/* CTA 条 */
.cta-band{
  background:var(--primary-deep);border-radius:var(--r-lg);
  padding:36px 40px;display:flex;align-items:center;justify-content:space-between;
  gap:28px;flex-wrap:wrap;
}
.cta-band h2{color:#fff;font-size:26px;margin-bottom:8px}
.cta-band p{color:#C9D6EA;font-size:15px;max-width:620px}

/* 页脚 */
.site-footer{background:#F1F4F9;border-top:1px solid var(--line);margin-top:16px}
.footer-main{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;
  padding-top:64px;padding-bottom:44px;
}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--text-strong);margin-bottom:14px}
.footer-brand:hover{color:var(--text-strong)}
.footer-desc{font-size:14px;color:var(--text-muted);line-height:1.8;max-width:330px}
.footer-col h4{font-size:16px;font-weight:600;margin-bottom:14px}
.footer-col a{display:block;padding:6px 0;font-size:15px;color:var(--text)}
.footer-col a:hover{color:var(--primary)}
.footer-contact{font-size:14px;color:var(--text-muted);line-height:1.9}
.footer-bottom{background:#0F1B2D;color:#9AA7BC;font-size:13px}
.footer-bottom .container{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:10px 24px;padding-top:20px;padding-bottom:20px;
}
.footer-bottom a{color:#C9D6EA}
.footer-bottom a:hover{color:#fff}

/* 响应式 */
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 320px;gap:56px}
  .article-side{display:block}
  .side-sticky{position:sticky;top:calc(var(--header-h) + 24px)}
  .article-body{padding:40px 44px}
}
@media (max-width:1023px){
  .nav-main{display:none}
  .header-cta{display:none}
  .icon-btn{display:inline-flex}
  body{padding-bottom:76px}
  .mobile-tab{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:70;
    background:#fff;border-top:1px solid var(--line);
    box-shadow:0 -6px 20px rgba(16,27,45,.06);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .mobile-tab a{
    flex:1;min-height:60px;display:flex;flex-direction:column;
    align-items:center;justify-content:center;gap:4px;
    font-size:12px;color:#6B7688;position:relative;
    transition:color var(--t);
  }
  .mobile-tab a svg{width:24px;height:24px;stroke-width:1.5}
  .mobile-tab a.is-active{color:var(--primary);font-weight:600}
  .mobile-tab a.is-active::before{
    content:"";position:absolute;top:0;width:28px;height:2px;border-radius:2px;background:var(--primary);
  }
  .mobile-tab a:hover{color:var(--primary)}
}
@media (max-width:1023px) and (min-width:641px){
  .footer-main{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:640px){
  .article-hero h1{font-size:27px;margin:14px 0 16px}
  .article-body{padding:22px 18px;border-radius:var(--r-card)}
  .article-wrap{padding:28px 0 0}
  .section{padding:48px 0}
  .section-head h2{font-size:22px}
  .cta-band{padding:28px 22px;border-radius:var(--r-card)}
  .cta-band h2{font-size:21px}
  .footer-main{grid-template-columns:1fr 1fr;gap:24px;padding-top:44px;padding-bottom:32px}
  .footer-bottom .container{flex-direction:column;text-align:center}
  .article-content h2{font-size:21px}
  .article-content h3{font-size:18px}
  .brand-text{font-size:16px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .rec-card:hover,.btn:hover{transform:none !important}
  .rec-card:hover .rec-thumb img{transform:none !important}
}

/* roulang page: category1 */
:root{
  --primary:#1F63D6;
  --primary-deep:#14408C;
  --primary-soft:#E8F0FE;
  --accent:#FF6A3D;
  --bg:#F6F8FC;
  --surface:#FFFFFF;
  --line:#E4E9F2;
  --text-strong:#101B2D;
  --text:#3B4657;
  --text-muted:#6B7688;
  --success:#14A06E;
  --danger:#E5484D;
  --radius-card:16px;
  --radius-hero:20px;
  --radius-btn:10px;
  --s1:0 1px 2px rgba(16,27,45,.06),0 1px 3px rgba(16,27,45,.04);
  --s2:0 8px 24px -8px rgba(16,27,45,.12);
  --s-hover:0 16px 40px -12px rgba(31,99,214,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  font-size:16px;line-height:1.75;letter-spacing:.01em;
  color:var(--text);background:var(--bg);
  padding-bottom:76px;
}
@media (min-width:1024px){body{padding-bottom:0}}
img{max-width:100%;display:block;border-style:none}
a{color:var(--primary);text-decoration:none;transition:color 180ms var(--ease)}
a:hover{color:#1a55bb}
h1,h2,h3,h4{margin:0;color:var(--text-strong);line-height:1.3;letter-spacing:-.01em}
h1{font-size:40px;font-weight:700}
h2{font-size:32px;font-weight:700}
h3{font-size:22px;font-weight:600}
h4{font-size:17px;font-weight:600}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(31,99,214,.28);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1320px}}
@media (max-width:640px){.container{padding:0 16px}}
.container.narrow{max-width:1000px}
@media (min-width:1440px){.container.narrow{max-width:1000px}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;background:var(--surface);
  border-bottom:1px solid transparent;
  transition:box-shadow 180ms var(--ease),border-color 180ms var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(16,27,45,.06);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;gap:32px;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text-strong);font-weight:700;font-size:17px;white-space:nowrap}
.brand:hover{color:var(--primary-deep)}
.brand-mark{
  width:28px;height:28px;border-radius:8px;flex:0 0 28px;
  background:linear-gradient(135deg,#1F63D6,#14408C);
  color:#fff;display:grid;place-items:center;font-size:15px;font-weight:700;line-height:1;
}
.nav-main{display:flex;align-items:center;gap:32px;margin-left:auto}
.nav-main a{position:relative;font-size:16px;font-weight:500;color:var(--text);padding:6px 0}
.nav-main a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:center;
  transition:transform 180ms var(--ease);
}
.nav-main a:hover{color:var(--primary)}
.nav-main a:hover::after{transform:scaleX(1)}
.nav-main a.is-active{color:var(--primary);font-weight:600}
.nav-main a.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background 180ms var(--ease),color 180ms var(--ease),transform 180ms var(--ease),box-shadow 180ms var(--ease);
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:#1a55bb;color:#fff;transform:translateY(-1px);box-shadow:var(--s-hover)}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 1px 3px rgba(0,0,0,.18)}
.btn-outline{border-color:var(--primary);color:var(--primary);background:var(--surface)}
.btn-outline:hover{background:var(--primary-soft);color:var(--primary)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#ef5a2c;color:#fff;transform:translateY(-1px);box-shadow:0 16px 40px -14px rgba(255,106,61,.6)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.icon-cta{
  display:none;width:42px;height:42px;border-radius:12px;background:var(--primary);color:#fff;
  align-items:center;justify-content:center;
}
.icon-cta svg{width:20px;height:20px}
.icon-cta:hover{background:#1a55bb;color:#fff}
@media (max-width:1023px){
  .header-inner{height:60px;gap:16px}
  .nav-main{display:none}
  .header-actions{margin-left:auto}
  .header-actions .btn-sm{display:none}
  .icon-cta{display:inline-flex}
  .brand-text{font-size:15px}
}

/* ---------- Mobile Tab Bar ---------- */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:120;display:none;
  background:var(--surface);border-top:1px solid var(--line);
  box-shadow:0 -6px 20px rgba(16,27,45,.06);
  padding-bottom:env(safe-area-inset-bottom);
}
@media (max-width:1023px){.tabbar{display:flex}}
.tab-item{
  flex:1 1 0;min-width:0;height:60px;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:3px;position:relative;
  color:#6B7688;font-size:11px;line-height:1.2;
}
.tab-item svg{width:24px;height:24px;stroke-width:1.5}
.tab-item svg.icon-fill{display:none}
.tab-item.is-active{color:var(--primary);font-weight:600}
.tab-item.is-active svg.icon-line{display:none}
.tab-item.is-active svg.icon-fill{display:block}
.tab-item.is-active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:28px;height:2px;border-radius:0 0 2px 2px;background:var(--primary);
}
.tab-item:hover{color:var(--primary)}
.tab-item span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:72px}

/* ---------- Breadcrumb & Hero ---------- */
.crumb-wrap{padding-top:22px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-muted)}
.breadcrumb a{color:var(--text-muted)}
.breadcrumb a:hover{color:var(--primary)}
.crumb-current{color:var(--text-muted)}
.cat-hero{
  background:linear-gradient(180deg,#E8F0FE 0%,#FFFFFF 100%);
  border-bottom:1px solid var(--line);
  margin-top:18px;
}
.cat-hero-inner{
  display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;
  min-height:270px;padding-top:36px;padding-bottom:40px;
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:999px;background:var(--primary-soft);
  color:var(--primary);font-size:13px;font-weight:600;line-height:1.6;
}
.cat-hero h1{margin:14px 0 14px;font-size:40px}
.cat-hero-sub{font-size:16px;color:var(--text);max-width:520px}
.cat-hero-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--radius-hero);box-shadow:var(--s2);
}
@media (max-width:1023px){
  .cat-hero-inner{grid-template-columns:1fr;gap:28px;padding-top:28px;padding-bottom:36px}
  .cat-hero h1{font-size:32px}
  .cat-hero-media{order:-1}
}
@media (max-width:640px){
  .cat-hero h1{font-size:28px}
  .cat-hero-sub{font-size:15px}
}

/* ---------- Sections ---------- */
.section{padding:72px 0}
@media (max-width:640px){.section{padding:48px 0}}
.section-head{margin-bottom:32px;max-width:820px}
.section-head h2{margin:12px 0 12px}
.lead{font-size:16px;color:var(--text)}
@media (max-width:640px){
  h2{font-size:24px}
  h3{font-size:18px}
  .section-head{margin-bottom:24px}
}

/* ---------- Point cards ---------- */
.point-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:24px}
.point-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--s1);
  transition:transform 180ms var(--ease),box-shadow 180ms var(--ease);
}
.point-card:hover{transform:translateY(-2px);box-shadow:var(--s-hover)}
.point-num{
  display:block;font-size:13px;font-weight:700;color:var(--accent);
  font-variant-numeric:tabular-nums;letter-spacing:.08em;
}
.point-card h3{margin:10px 0 10px}
.point-card p{font-size:15px;color:var(--text-muted)}
@media (max-width:1023px){.point-grid{grid-template-columns:1fr 1fr}}
@media (max-width:640px){.point-grid{grid-template-columns:1fr}}

/* ---------- Layout with sticky anchor ---------- */
.cat-layout{
  display:grid;grid-template-columns:220px minmax(0,1fr);gap:48px;align-items:start;
  padding-top:64px;padding-bottom:8px;
}
@media (max-width:1023px){
  .cat-layout{grid-template-columns:1fr;gap:0;padding-top:48px}
}
.cat-aside .aside-sticky{position:sticky;top:96px}
.aside-title{
  font-size:12px;color:var(--text-muted);letter-spacing:.12em;
  margin:0 0 14px;font-weight:600;
}
.aside-link{
  display:block;padding:10px 14px;border-radius:10px;font-size:14px;color:var(--text);
  border-left:2px solid transparent;transition:background 180ms var(--ease),color 180ms var(--ease);
}
.aside-link:hover{background:var(--primary-soft);color:var(--primary)}
.aside-link.is-active{
  background:var(--primary-soft);color:var(--primary);font-weight:600;border-left-color:var(--primary);
}
@media (max-width:1023px){.cat-aside{display:none}}

/* ---------- Content groups ---------- */
.group{margin-bottom:64px}
.group:last-child{margin-bottom:0}
.group-head{display:flex;align-items:baseline;gap:14px;margin-bottom:10px}
.group-index{font-size:14px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums}
.group-head h2{font-size:26px}
.group-desc{color:var(--text-muted);font-size:15px;margin-bottom:18px}
@media (max-width:640px){.group-head h2{font-size:22px}}

/* ---------- Row list ---------- */
.row-list{border-top:1px solid var(--line)}
.row-item{
  display:flex;align-items:center;gap:20px;padding:20px 4px;
  border-bottom:1px solid var(--line);color:inherit;
  transition:background 180ms var(--ease),padding 180ms var(--ease);
}
.row-item:hover{background:var(--surface);padding-left:14px;padding-right:14px;color:inherit}
.row-item:hover .row-title{color:var(--primary)}
.row-num{
  flex:0 0 34px;font-size:13px;font-weight:700;color:var(--primary);
  font-variant-numeric:tabular-nums;letter-spacing:.04em;
}
.row-body{flex:1 1 auto;min-width:0}
.row-title{font-size:17px;font-weight:600;color:var(--text-strong);line-height:1.45;margin-bottom:4px}
.row-desc{
  font-size:14px;color:var(--text-muted);
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}
.row-arrow{
  flex:0 0 auto;width:34px;height:34px;border-radius:50%;
  display:grid;place-items:center;background:var(--primary-soft);color:var(--primary);
  transition:background 180ms var(--ease),color 180ms var(--ease),transform 180ms var(--ease);
}
.row-arrow svg{width:16px;height:16px}
.row-item:hover .row-arrow{background:var(--primary);color:#fff;transform:translateX(2px)}
@media (max-width:640px){
  .row-item{gap:14px;padding:18px 2px}
  .row-num{flex-basis:28px}
  .row-title{font-size:16px}
  .row-desc{-webkit-line-clamp:2}
  .row-arrow{display:none}
}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line);transition:background 180ms var(--ease)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:16px;min-height:56px;padding:16px 16px;font-size:17px;font-weight:600;color:var(--text-strong);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-icon{flex:0 0 auto;color:var(--primary);transition:transform 240ms var(--ease)}
.faq-icon svg{width:18px;height:18px;display:block}
.faq-item[open]{background:#F6F8FC;box-shadow:inset 3px 0 0 var(--primary)}
.faq-item[open] summary{color:var(--primary)}
.faq-item[open] .faq-icon{transform:rotate(180deg)}
.faq-answer{padding:0 16px 22px;font-size:15px;color:var(--text);max-width:760px}

/* ---------- CTA band ---------- */
.cta-wrap{padding:8px 0 80px}
@media (max-width:640px){.cta-wrap{padding:8px 0 56px}}
.cta-band{
  background:var(--primary-deep);border-radius:var(--radius-hero);
  padding:38px 42px;display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band h2{color:#fff;font-size:28px;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.82);font-size:15px;max-width:640px}
.cta-band .btn{flex:0 0 auto}
@media (max-width:768px){
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 24px}
  .cta-band h2{font-size:22px}
}

/* ---------- Footer ---------- */
.site-footer{background:#F1F4F9;border-top:1px solid var(--line)}
.footer-main{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;
  padding:56px 0 40px;
}
.footer-brand{
  display:inline-flex;align-items:center;gap:10px;color:var(--text-strong);
  font-weight:700;font-size:17px;margin-bottom:12px;
}
.footer-brand:hover{color:var(--primary-deep)}
.footer-desc{font-size:14px;color:var(--text-muted);max-width:280px}
.footer-col h4{font-size:15px;color:var(--text-strong);margin-bottom:14px}
.footer-col a{display:block;font-size:14px;color:var(--text-muted);padding:5px 0}
.footer-col a:hover{color:var(--primary)}
.footer-contact{font-size:14px;color:var(--text-muted);line-height:1.9}
.footer-bottom{background:#0F1B2D;color:rgba(255,255,255,.72);font-size:13px}
.footer-bottom .container{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  padding-top:18px;padding-bottom:18px;
}
.footer-bottom a{color:rgba(255,255,255,.85)}
.footer-bottom a:hover{color:#fff}
@media (max-width:1023px){
  .footer-main{grid-template-columns:1fr 1fr;gap:32px;padding:44px 0 32px}
}
@media (max-width:640px){
  .footer-main{grid-template-columns:1fr;gap:28px;padding:36px 0 28px}
  .footer-bottom .container{justify-content:center;text-align:center}
}

@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;scroll-behavior:auto !important}
  .point-card:hover,.btn:hover,.row-item:hover .row-arrow{transform:none}
}

/* roulang page: category2 */
/* ========== 设计变量 ========== */
:root{
  --primary:#1F63D6;
  --primary-deep:#14408C;
  --primary-soft:#E8F0FE;
  --accent:#FF6A3D;
  --bg:#F6F8FC;
  --surface:#FFFFFF;
  --line:#E4E9F2;
  --text-strong:#101B2D;
  --text:#3B4657;
  --text-muted:#6B7688;
  --success:#14A06E;
  --danger:#E5484D;
  --r-sm:8px;
  --r-card:16px;
  --r-lg:20px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --s1:0 1px 2px rgba(16,27,45,.06),0 1px 3px rgba(16,27,45,.04);
  --s2:0 8px 24px -8px rgba(16,27,45,.12);
  --s-hover:0 16px 40px -12px rgba(31,99,214,.22);
  --t:180ms cubic-bezier(.2,.7,.3,1);
  --header-h:68px;
}
/* ========== reset / base ========== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  font-size:16px;line-height:1.75;letter-spacing:.01em;
  color:var(--text);background:var(--bg);
}
h1,h2,h3,h4,h5,p,ul,ol,figure,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:var(--primary);text-decoration:none;transition:color var(--t),background var(--t),border-color var(--t)}
a:hover{color:var(--primary-deep)}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:3px solid rgba(31,99,214,.28);outline-offset:2px;border-radius:6px}
::selection{background:rgba(31,99,214,.16)}
/* ========== 容器与版块 ========== */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1320px}}
@media (max-width:640px){.container{padding:0 16px}}
.section{padding:88px 0}
.section--tight{padding:64px 0}
@media (max-width:1024px){.section{padding:64px 0}.section--tight{padding:48px 0}}
@media (max-width:640px){.section{padding:52px 0}.section--tight{padding:44px 0}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--primary);
  background:var(--primary-soft);border-radius:var(--r-pill);
  padding:6px 14px;margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary)}
.h2{font-size:32px;line-height:1.3;font-weight:700;color:var(--text-strong);letter-spacing:-.01em}
.h3{font-size:22px;line-height:1.4;font-weight:600;color:var(--text-strong)}
.lead{font-size:17px;color:var(--text);line-height:1.8}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section-head .desc{font-size:15px;color:var(--text-muted);max-width:620px;margin-top:12px}
@media (max-width:640px){
  .h2{font-size:24px}
  .h3{font-size:18px}
  .lead{font-size:15px}
  .section-head{margin-bottom:28px}
}
/* ========== 按钮 ========== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:16px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t),border-color var(--t);
}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}
.btn-primary:hover{background:#1a55bb;color:#fff;transform:translateY(-1px);box-shadow:var(--s-hover)}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 1px 2px rgba(0,0,0,.16)}
.btn-ghost{background:#fff;color:var(--primary);border-color:var(--primary)}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary-deep)}
.btn-accent{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn-accent:hover{background:#ef5a2c;color:#fff;transform:translateY(-1px);box-shadow:0 16px 40px -12px rgba(255,106,61,.38)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn-block{width:100%}
@media (max-width:640px){.btn{height:46px;padding:0 20px;font-size:15px}}
/* ========== 徽章 / 标签 ========== */
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;color:var(--primary);background:var(--primary-soft);
}
.pill--accent{background:var(--accent);color:#fff}
.pill--line{background:#fff;color:var(--text-muted);border:1px solid var(--line)}
/* ========== 顶部导航 ========== */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);
  border-bottom:1px solid transparent;
  transition:box-shadow var(--t),border-color var(--t);
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 6px 20px rgba(16,27,45,.06)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:var(--header-h)}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text-strong);font-weight:700;font-size:18px;letter-spacing:-.01em}
.brand:hover{color:var(--text-strong)}
.brand-mark{
  width:28px;height:28px;border-radius:9px;flex:0 0 28px;
  background:linear-gradient(135deg,var(--primary) 0%,#3C82F0 100%);
  color:#fff;font-size:15px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;
}
.nav-main{display:flex;align-items:center;gap:32px}
.nav-main a{
  position:relative;font-size:16px;font-weight:500;color:var(--text);
  padding:6px 0;
}
.nav-main a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:center;
  transition:transform var(--t);
}
.nav-main a:hover{color:var(--primary)}
.nav-main a:hover::after{transform:scaleX(1)}
.nav-main a.is-active{color:var(--primary);font-weight:600}
.nav-main a.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px}
@media (max-width:1023px){
  :root{--header-h:60px}
  .nav-main{display:none}
  .header-actions .btn{height:38px;padding:0 14px;font-size:14px}
  .brand{font-size:16px}
}
/* ========== 移动端底部 Tab ========== */
.tabbar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:#fff;border-top:1px solid var(--line);
  box-shadow:0 -6px 20px rgba(16,27,45,.06);
  padding-bottom:env(safe-area-inset-bottom);
}
.tabbar-inner{display:flex;align-items:stretch;justify-content:space-around}
.tab-item{
  flex:1 1 0;min-height:60px;min-width:44px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:12px;color:var(--text-muted);position:relative;padding:6px 2px;
}
.tab-item svg{width:24px;height:24px;stroke-width:1.5;transition:transform var(--t)}
.tab-item::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%) scaleX(0);
  width:28px;height:2px;border-radius:2px;background:var(--primary);transition:transform var(--t);
}
.tab-item:hover{color:var(--primary)}
.tab-item.is-active{color:var(--primary);font-weight:600}
.tab-item.is-active::before{transform:translateX(-50%) scaleX(1)}
.tab-item.is-active svg{transform:translateY(-1px)}
@media (max-width:1023px){
  .tabbar{display:block}
  body{padding-bottom:76px}
}
/* ========== 分类页 Hero ========== */
.cat-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#E8F0FE 0%,#FFFFFF 100%);
  border-bottom:1px solid var(--line);
  padding:28px 0 56px;
}
.cat-hero .crumb{margin-bottom:22px}
.cat-hero h1{
  font-size:40px;line-height:1.25;font-weight:700;color:var(--text-strong);letter-spacing:-.01em;
}
.cat-hero .hero-note{font-size:17px;line-height:1.85;color:var(--text);margin-top:18px;max-width:620px}
.hero-facts{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-visual{
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--s2);background:#fff;
  aspect-ratio:16/10;margin-top:8px;
}
.hero-visual img{width:100%;height:100%;object-fit:cover}
@media (max-width:1023px){
  .cat-hero{padding:20px 0 44px}
  .cat-hero h1{font-size:30px}
  .cat-hero .hero-note{font-size:15px}
  .hero-visual{margin-top:28px;aspect-ratio:16/9}
}
@media (max-width:640px){
  .cat-hero h1{font-size:28px}
}
/* 面包屑 */
.crumb{font-size:13px;color:var(--text-muted);display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb a{color:var(--text-muted)}
.crumb a:hover{color:var(--primary)}
.crumb span.sep{color:#C3CBDA}
.crumb .current{color:var(--text-muted)}
/* ========== 要点区（非等宽） ========== */
.points{margin-top:8px}
.point{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--s1);height:100%;
  transition:transform var(--t),box-shadow var(--t);
}
.point:hover{transform:translateY(-2px);box-shadow:var(--s2)}
.point--lead{background:linear-gradient(180deg,#FFFFFF 0%,#F8FBFF 100%)}
.point-icon{
  width:44px;height:44px;border-radius:14px;background:var(--primary-soft);color:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.point-icon svg{width:22px;height:22px;stroke-width:1.5}
.point h3{font-size:18px;font-weight:600;color:var(--text-strong);margin-bottom:8px}
.point p{font-size:14px;color:var(--text-muted);line-height:1.75}
.point--lead h3{font-size:22px}
.point--lead p{font-size:15px;color:var(--text)}
.point-stat{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-muted);display:flex;align-items:baseline;gap:8px;
}
.point-stat b{font-size:24px;color:var(--primary);font-variant-numeric:tabular-nums;font-weight:700}
/* ========== 内容分组区 ========== */
.group{padding:36px 0 0}
.group + .group{margin-top:40px;border-top:1px solid var(--line);padding-top:52px}
.group-side .group-no{
  font-size:44px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;
  line-height:1;letter-spacing:-.02em;
}
.group--alt .group-side .group-no{color:var(--primary-deep)}
.group-side .group-label{font-size:13px;color:var(--text-muted);margin-top:10px;letter-spacing:.06em}
.group-side h2{font-size:26px;line-height:1.35;font-weight:700;color:var(--text-strong);margin-top:14px}
.group-side p{font-size:14px;color:var(--text-muted);margin-top:12px;max-width:260px}
.entry-list{border-top:1px solid var(--line)}
.entry{
  display:flex;align-items:center;gap:20px;
  padding:20px 4px;border-bottom:1px solid var(--line);
  transition:background var(--t),padding var(--t);
}
.entry:hover{background:#F8FBFF;padding-left:12px;padding-right:12px}
.entry-no{
  font-size:14px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;
  flex:0 0 34px;
}
.entry-body{flex:1 1 auto;min-width:0}
.entry-body h3{font-size:17px;font-weight:600;color:var(--text-strong);line-height:1.5}
.entry-body p{font-size:14px;color:var(--text-muted);margin-top:4px;line-height:1.7}
.entry-arrow{
  flex:0 0 32px;width:32px;height:32px;border-radius:50%;
  border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;
  color:var(--primary);transition:background var(--t),transform var(--t),border-color var(--t);
}
.entry-arrow svg{width:16px;height:16px;stroke-width:1.8}
.entry:hover .entry-arrow{background:var(--primary);border-color:var(--primary);color:#fff;transform:translateX(3px)}
@media (max-width:640px){
  .group-side h2{font-size:20px}
  .group-side .group-no{font-size:34px}
  .entry{gap:14px;padding:16px 2px}
  .entry-body h3{font-size:16px}
}
/* ========== 图文交替 ========== */
.zig{margin-top:8px}
.zig-row + .zig-row{margin-top:72px}
.zig-media{
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--s2);background:#fff;aspect-ratio:16/11;
}
.zig-media img{width:100%;height:100%;object-fit:cover;transition:transform 500ms cubic-bezier(.2,.7,.3,1)}
.zig-media:hover img{transform:scale(1.04)}
.zig-body{padding:8px 0}
.zig-body h3{font-size:26px;line-height:1.35;font-weight:700;color:var(--text-strong);margin:14px 0 14px}
.zig-body p{font-size:16px;line-height:1.85;color:var(--text)}
.check-list{margin-top:22px;display:flex;flex-direction:column;gap:12px}
.check-list li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--text)}
.check-list svg{width:20px;height:20px;flex:0 0 20px;margin-top:3px;color:var(--success);stroke-width:2}
@media (max-width:1023px){
  .zig-row + .zig-row{margin-top:48px}
  .zig-body h3{font-size:22px}
  .zig-body p{font-size:15px}
  .zig-media{margin-bottom:24px;aspect-ratio:16/9}
}
@media (max-width:640px){
  .zig-body h3{font-size:20px}
}
/* ========== 步骤 ========== */
.steps-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:48px 40px;box-shadow:var(--s1)}
.steps{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:24px}
.step{position:relative;padding-top:26px;border-top:2px solid var(--line)}
.step::before{
  content:"";position:absolute;top:-2px;left:0;width:44px;height:2px;background:var(--primary);
}
.step-no{
  font-size:32px;font-weight:700;color:var(--primary-soft);
  -webkit-text-stroke:1px var(--primary);
  font-variant-numeric:tabular-nums;line-height:1;
}
.step h4{font-size:17px;font-weight:600;color:var(--text-strong);margin:12px 0 8px}
.step p{font-size:14px;color:var(--text-muted);line-height:1.75}
@media (max-width:1023px){
  .steps-wrap{padding:32px 24px}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:640px){
  .steps{grid-template-columns:1fr;gap:20px}
}
/* ========== FAQ ========== */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 4px;font-size:17px;font-weight:600;color:var(--text-strong);
  transition:background var(--t),color var(--t);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-item summary .chev{flex:0 0 24px;width:24px;height:24px;color:var(--text-muted);transition:transform 240ms cubic-bezier(.2,.7,.3,1),color var(--t)}
.faq-item[open] summary{color:var(--primary)}
.faq-item[open] summary .chev{transform:rotate(180deg);color:var(--primary)}
.faq-item[open]{
  background:#F6F8FC;border-left:3px solid var(--primary);
  padding-left:18px;border-radius:0 var(--r-sm) var(--r-sm) 0;
}
.faq-a{padding:0 44px 22px 4px;font-size:15px;color:var(--text);line-height:1.85}
@media (max-width:640px){
  .faq-item summary{font-size:16px;padding:16px 2px}
  .faq-a{padding:0 8px 18px 2px;font-size:14px}
}
/* ========== CTA 条 ========== */
.cta-band{
  background:var(--primary-deep);color:#fff;border-radius:var(--r-lg);
  padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  flex-wrap:wrap;box-shadow:var(--s2);
}
.cta-band h2{font-size:28px;font-weight:700;line-height:1.35;color:#fff}
.cta-band p{font-size:15px;color:rgba(255,255,255,.78);margin-top:10px;max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-band .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}
@media (max-width:640px){
  .cta-band{padding:32px 22px;border-radius:var(--r-card)}
  .cta-band h2{font-size:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
}
/* ========== 页脚 ========== */
.site-footer{background:#F1F4F9;border-top:1px solid var(--line);margin-top:88px}
.footer-main{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;
  padding-top:56px;padding-bottom:44px;
}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:var(--text-strong)}
.footer-brand:hover{color:var(--text-strong)}
.footer-desc{font-size:14px;color:var(--text-muted);margin-top:14px;max-width:320px;line-height:1.8}
.footer-col h4{font-size:15px;font-weight:600;color:var(--text-strong);margin-bottom:16px}
.footer-col a{display:block;font-size:14px;color:var(--text-muted);padding:5px 0}
.footer-col a:hover{color:var(--primary)}
.footer-contact{font-size:14px;color:var(--text-muted);line-height:1.9}
.footer-bottom{background:#0F1B2D;color:rgba(255,255,255,.7);font-size:13px}
.footer-bottom .container{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding-top:18px;padding-bottom:18px;flex-wrap:wrap;
}
.footer-bottom a{color:rgba(255,255,255,.85)}
.footer-bottom a:hover{color:#fff}
@media (max-width:1023px){
  .footer-main{grid-template-columns:1fr 1fr;gap:28px;padding-top:40px}
}
@media (max-width:640px){
  .footer-main{grid-template-columns:1fr;gap:24px}
  .footer-bottom .container{justify-content:center;text-align:center}
  .site-footer{margin-top:56px}
}
/* ========== 动效偏好 ========== */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important}
  .point:hover,.btn:hover,.zig-media:hover img{transform:none !important}
}