/* roulang page: index */
:root{
  --brand:#17567D;
  --brand-700:#114160;
  --brand-50:#EEF4F9;
  --accent:#FF6A3D;
  --ink:#14202B;
  --ink-2:#4A5A6A;
  --ink-3:#8794A3;
  --line:#E6ECF2;
  --soft-line:#EDF1F6;
  --bg:#F7F9FC;
  --surface:#FFFFFF;
  --danger:#D64545;
  --r-card:14px;
  --r-block:20px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-sm:0 1px 2px rgba(20,40,70,.06);
  --sh-md:0 6px 18px rgba(20,40,70,.08);
  --sh-lg:0 16px 40px rgba(20,40,70,.10);
  --sidebar-w:248px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.75;color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
a{color:var(--brand);text-decoration:none;transition:color .18s ease,background .18s ease}
a:hover{color:var(--brand-700)}
img{max-width:100%;display:block;border:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
:focus-visible{outline:2px solid rgba(23,86,125,.35);outline-offset:2px;border-radius:6px}
.grid-padding-x{margin-left:-12px;margin-right:-12px}
.grid-padding-x>.cell{padding-left:12px;padding-right:12px}

/* ---------- 布局骨架 ---------- */
.layout{min-height:100vh}
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  background:var(--surface);border-right:1px solid var(--line);
  display:flex;flex-direction:column;padding:0 16px 18px;z-index:60;
}
.sidebar-logo{height:72px;display:flex;align-items:center;gap:10px;padding:0 6px;flex:none}
.sidebar-logo svg{width:30px;height:30px;flex:none}
.sidebar-logo-text{font-size:15px;font-weight:700;color:var(--ink);letter-spacing:.01em;line-height:1.2}
.sidebar-logo-sub{display:block;font-size:11px;font-weight:400;color:var(--ink-3);letter-spacing:0}
.sidebar-nav{display:flex;flex-direction:column;gap:4px;padding-top:8px;flex:none}
.nav-item{
  position:relative;display:flex;align-items:center;height:44px;padding:0 14px;
  border-radius:var(--r-btn);color:var(--ink-2);font-size:15px;
  transition:background .18s ease,color .18s ease;
}
.nav-item:hover{background:rgba(23,86,125,.06);color:var(--brand)}
.nav-item.active{background:rgba(23,86,125,.08);color:var(--brand);font-weight:700}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:0 2px 2px 0;background:var(--brand);
}
.sidebar-sub{margin-top:22px;padding:0 2px;flex:none}
.sub-card{
  background:var(--brand-50);border-radius:var(--r-card);padding:16px;
}
.sub-card h4{font-size:14px;font-weight:700;color:var(--ink);margin-bottom:6px}
.sub-card p{font-size:13px;color:var(--ink-2);line-height:1.7;margin-bottom:10px}
.sub-card .sub-inline{font-size:13px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:4px}
.sub-links{margin-top:16px;display:flex;flex-direction:column;gap:8px;padding:0 6px}
.sub-links a{font-size:13px;color:var(--ink-3)}
.sub-links a:hover{color:var(--brand)}
.sidebar-foot{
  margin-top:auto;padding:14px 6px 0;border-top:1px solid var(--line);
  font-size:12px;color:var(--ink-3);line-height:1.7;
}
.drawer-mask{display:none;position:fixed;inset:0;background:rgba(16,32,48,.45);z-index:55}
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:56px;z-index:58;
  background:var(--surface);border-bottom:1px solid var(--line);
  align-items:center;gap:12px;padding:0 14px;
}
.topbar-toggle{width:38px;height:38px;border-radius:10px;display:flex;align-items:center;justify-content:center;border:1px solid var(--line)}
.topbar-toggle:hover{background:var(--brand-50)}
.topbar-logo{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--ink)}
.topbar-logo svg{width:22px;height:22px}
.topbar-cta{margin-left:auto}
.main{margin-left:var(--sidebar-w);min-height:100vh;overflow-x:hidden}
.container{max-width:1200px;margin:0 auto;padding:0 40px}
.section{padding:72px 0}
.section-tight{padding:48px 0}

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;white-space:nowrap;transition:all .18s ease;
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border-color:var(--brand);color:var(--brand);background:var(--surface)}
.btn-ghost:hover{background:rgba(23,86,125,.08);color:var(--brand)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn-wide{width:100%}
.badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--r-pill);font-size:12px;line-height:1;white-space:nowrap}
.badge-brand{background:var(--brand-50);color:var(--brand)}
.badge-live{background:var(--accent);color:#fff;font-weight:600}
.badge-status{background:#EFF3F7;color:var(--ink-2)}
.badge-row{display:flex;flex-wrap:wrap;gap:8px}
.dot-live{width:7px;height:7px;border-radius:50%;background:#fff;animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.82)}}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.sec-head h2{font-size:28px;line-height:1.35;font-weight:700;letter-spacing:.01em}
.sec-head p{font-size:14px;color:var(--ink-2);margin-top:8px;max-width:620px}
.sec-link{font-size:14px;font-weight:600;white-space:nowrap}
.sec-link:hover{text-decoration:underline;text-underline-offset:3px}
.muted{color:var(--ink-3);font-size:13px}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ---------- Hero ---------- */
.hero{padding:56px 0 64px}
.hero-inner{display:flex;align-items:center;gap:48px}
.hero-copy{flex:1 1 58%}
.hero-copy h1{font-size:40px;line-height:1.25;font-weight:700;letter-spacing:.01em;color:var(--ink)}
.hero-sub{font-size:16px;color:var(--ink-2);margin-top:18px;max-width:560px;line-height:1.8}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}
.hero-visual{flex:1 1 42%;position:relative;border-radius:var(--r-block);overflow:hidden;box-shadow:var(--sh-md);background:var(--brand-50)}
.hero-visual img{width:100%;height:360px;object-fit:cover}
.hero-visual::after{content:"";position:absolute;inset:0;background:rgba(247,249,252,.88)}
.hero-visual-tag{
  position:absolute;left:24px;bottom:24px;z-index:2;background:var(--surface);
  border-radius:var(--r-card);padding:16px 20px;box-shadow:var(--sh-sm);max-width:280px;
}
.hero-visual-tag strong{display:block;font-size:15px;color:var(--ink);margin-bottom:4px}
.hero-visual-tag span{font-size:13px;color:var(--ink-2);line-height:1.7}

/* ---------- 快讯条 ---------- */
.quickbar{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.quickbar-inner{display:flex;align-items:center;gap:18px;padding:16px 0;flex-wrap:wrap}
.quickbar-label{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--brand);background:var(--brand-50);border-radius:var(--r-pill);padding:6px 14px}
.quickbar-text{font-size:14px;color:var(--ink-2);flex:1;min-width:220px}
.quickbar-text a{font-weight:600}
.quickbar-meta{font-size:13px;color:var(--ink-3)}

/* ---------- 直播预告 ---------- */
.live-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:32px;align-items:start}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-sm)}
.card-pad{padding:24px}
.live-cover{position:relative;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-sm);background:var(--brand-50)}
.live-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.live-flag{position:absolute;top:14px;right:14px}
.live-timebar{
  position:absolute;left:14px;bottom:14px;background:rgba(16,32,48,.72);color:#fff;
  font-size:12px;padding:6px 12px;border-radius:var(--r-pill);
  font-variant-numeric:tabular-nums;
}
.live-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:16px;font-size:13px;color:var(--ink-3)}
.live-meta strong{font-size:15px;color:var(--ink);font-weight:700}
.countdown-row{display:flex;align-items:center;gap:24px;flex-wrap:wrap}
.countdown{display:flex;gap:12px}
.cd-cell{
  width:64px;height:64px;border-radius:12px;background:var(--brand-50);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
}
.cd-num{font-size:24px;font-weight:700;color:var(--brand);line-height:1;font-variant-numeric:tabular-nums}
.cd-label{font-size:11px;color:var(--ink-3);margin-top:5px}
.cd-note{font-size:13px;color:var(--ink-2);line-height:1.7}
.cd-note b{color:var(--accent);font-variant-numeric:tabular-nums}
.hl-list{margin-top:22px}
.hl-item{display:flex;align-items:flex-start;gap:14px;padding:15px 0;border-bottom:1px solid var(--soft-line);font-size:15px;color:var(--ink-2);line-height:1.7;transition:transform .18s ease,color .18s ease}
.hl-item:last-child{border-bottom:0}
.hl-item:hover{transform:translateX(2px);color:var(--brand)}
.hl-num{
  flex:none;width:26px;height:26px;border-radius:50%;border:1.6px solid var(--brand);
  color:var(--brand);font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.remind{
  display:flex;align-items:center;gap:20px;flex-wrap:wrap;margin-top:22px;
  background:rgba(23,86,125,.06);border-radius:var(--r-card);padding:20px;
}
.remind-icon{width:44px;height:44px;border-radius:50%;background:var(--surface);display:flex;align-items:center;justify-content:center;flex:none;box-shadow:var(--sh-sm)}
.remind-copy{flex:1 1 200px;min-width:180px}
.remind-copy strong{display:block;font-size:15px;color:var(--ink);margin-bottom:2px}
.remind-copy span{font-size:13px;color:var(--ink-2)}
.sub-form{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.sub-input{
  width:260px;height:44px;padding:0 14px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:var(--surface);font-size:14px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.sub-input::placeholder{color:var(--ink-3)}
.sub-input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,86,125,.14)}
.sub-hint{font-size:13px;color:var(--danger);margin-top:8px;display:none}
.sub-done{font-size:13px;color:var(--brand);margin-top:8px;display:none}
.entry-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:26px}
.entry-card{
  display:flex;align-items:center;gap:14px;padding:18px 20px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-sm);
  color:var(--ink);transition:all .18s ease;
}
.entry-card:hover{box-shadow:var(--sh-md);transform:translateY(-2px);color:var(--brand)}
.entry-ico{width:38px;height:38px;border-radius:10px;background:var(--brand-50);display:flex;align-items:center;justify-content:center;flex:none}
.entry-card strong{display:block;font-size:15px}
.entry-card span{font-size:13px;color:var(--ink-3)}
.entry-arrow{margin-left:auto;color:var(--ink-3);font-size:16px}

/* ---------- 内容列表 ---------- */
.post-grid{row-gap:24px}
.post-card{
  height:100%;display:flex;flex-direction:column;gap:12px;padding:20px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-sm);transition:all .18s ease;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md)}
.post-cover{
  display:block;border-radius:10px;overflow:hidden;background:var(--brand-50);
}
.post-cover img{width:100%;aspect-ratio:16/10;object-fit:cover}
.post-title{
  font-size:17px;font-weight:700;line-height:1.5;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-title:hover{color:var(--brand)}
.post-sum{
  font-size:14px;color:var(--ink-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-foot{
  margin-top:auto;border-top:1px solid var(--line);padding-top:12px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--ink-3);
}
.empty-state{
  text-align:center;padding:48px 24px;background:var(--surface);
  border:1px dashed var(--line);border-radius:var(--r-card);
}
.empty-state svg{width:48px;height:48px;margin:0 auto 16px;opacity:.3}
.empty-state p{font-size:15px;color:var(--ink-2);margin-bottom:18px}
.empty-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* ---------- 功能说明 ---------- */
.feature-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px;align-items:start}
.feature-main{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-block);
  box-shadow:var(--sh-sm);overflow:hidden;
}
.feature-main img{width:100%;height:220px;object-fit:cover}
.feature-body{padding:28px}
.feature-body h3{font-size:20px;font-weight:700;margin-bottom:12px}
.feature-body p{font-size:15px;color:var(--ink-2);line-height:1.8;margin-bottom:18px}
.feature-side{display:flex;flex-direction:column;gap:24px}
.feature-side .card-pad h3{font-size:18px;font-weight:700;margin-bottom:10px}
.feature-side .card-pad p{font-size:14px;color:var(--ink-2);line-height:1.75;margin-bottom:14px}
.feature-side .card:last-child{margin-top:24px}
.tick-list{display:flex;flex-direction:column;gap:10px}
.tick-list li{display:flex;gap:10px;font-size:14px;color:var(--ink-2);line-height:1.7}
.tick-list svg{flex:none;margin-top:3px}

/* ---------- 数据与人群 ---------- */
.stat-band{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-block);box-shadow:var(--sh-sm);padding:32px 28px}
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.stat-item{border-left:2px solid var(--brand-50);padding-left:18px}
.stat-item b{display:block;font-size:28px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.3}
.stat-item span{font-size:13px;color:var(--ink-2)}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.chip{
  font-size:13px;color:var(--ink-2);background:var(--bg);border:1px solid var(--line);
  border-radius:var(--r-pill);padding:8px 16px;transition:all .18s ease;
}
.chip:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-50)}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px;align-items:start}
.faq-col .faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  position:relative;width:100%;min-height:48px;display:flex;align-items:center;
  justify-content:space-between;gap:16px;text-align:left;padding:12px 0;
  font-size:16px;font-weight:600;color:var(--ink);transition:color .18s ease;
}
.faq-q:hover{color:var(--brand)}
.faq-q .faq-ico{flex:none;font-size:18px;color:var(--brand);font-weight:700;line-height:1}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .18s ease;
  font-size:15px;color:var(--ink-2);line-height:1.8;
}
.faq-item.open .faq-a{max-height:360px;padding-bottom:18px}
.faq-item.open .faq-q::before{content:"";position:absolute;top:0;left:0;width:28px;height:2px;background:var(--brand);border-radius:2px}
.faq-item.open .faq-q{color:var(--brand)}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--brand-50);border-radius:18px;padding:40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{font-size:24px;font-weight:700;line-height:1.4}
.cta-band p{font-size:14px;color:var(--ink-2);margin-top:10px;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.footer{background:#10202D;color:rgba(255,255,255,.72);margin-top:72px;padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:32px}
.footer h4{font-size:15px;color:#fff;font-weight:700;margin-bottom:16px;letter-spacing:.01em}
.footer p{font-size:13px;line-height:1.8;color:rgba(255,255,255,.72)}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:13px;color:rgba(255,255,255,.72)}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand svg{width:26px;height:26px}
.footer-brand strong{color:#fff;font-size:15px}
.footer-bottom{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0;display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:12px;color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1439px){
  .container{max-width:1200px}
}
@media (min-width:1440px){
  .container{max-width:1280px}
}
@media (max-width:1100px){
  .hero-inner{gap:32px}
  .hero-copy h1{font-size:34px}
  .live-grid{grid-template-columns:1fr}
  .faq-wrap{grid-template-columns:1fr;gap:8px}
  .faq-wrap .faq-col:last-child{margin-top:24px}
}
@media (max-width:1023px){
  .sidebar{transform:translateX(-100%);transition:transform .22s ease;box-shadow:var(--sh-lg);padding-top:8px}
  body.drawer-open .sidebar{transform:none}
  body.drawer-open .drawer-mask{display:block}
  .topbar{display:flex}
  .main{margin-left:0;padding-top:56px}
  .container{padding:0 24px}
  .hero{padding:40px 0 48px}
  .hero-inner{flex-direction:column;align-items:stretch}
  .hero-visual img{height:280px}
  .section{padding:56px 0}
  .feature-grid{grid-template-columns:1fr}
  .feature-side .card:last-child{margin-top:0}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  .hero-copy h1{font-size:28px;line-height:1.35}
  .sec-head{flex-direction:column;align-items:flex-start;gap:10px}
  .sec-head h2{font-size:22px;line-height:1.4}
  .entry-row{grid-template-columns:1fr}
  .cta-band{padding:28px;flex-direction:column;align-items:stretch;text-align:center}
  .cta-actions{justify-content:center}
  .footer-grid{grid-template-columns:1fr}
  .post-card{padding:16px}
}
@media (max-width:639px){
  .container{padding:0 16px}
  .grid-padding-x{margin-left:-8px;margin-right:-8px}
  .grid-padding-x>.cell{padding-left:8px;padding-right:8px}
  .section{padding:48px 0}
  .cd-cell{width:56px;height:56px}
  .cd-num{font-size:20px}
  .countdown{gap:8px}
  .sub-input{width:100%}
  .sub-form{width:100%}
  .sub-form .btn{width:100%}
  .stat-grid{grid-template-columns:1fr}
  .faq-q{font-size:15px}
  .hero-actions .btn{width:100%}
  .feature-body{padding:20px}
}

/* roulang page: article */
:root{
  --brand:#17567D;
  --brand-700:#114160;
  --brand-50:#EEF4F9;
  --accent:#FF6A3D;
  --ink:#14202B;
  --ink-2:#4A5A6A;
  --ink-3:#8794A3;
  --line:#E6ECF2;
  --bg:#F7F9FC;
  --surface:#FFFFFF;
  --danger:#D64545;
  --r-card:14px;
  --r-block:20px;
  --r-btn:10px;
  --sh-sm:0 1px 2px rgba(20,40,70,.06);
  --sh-md:0 6px 18px rgba(20,40,70,.08);
  --sh-lg:0 16px 40px rgba(20,40,70,.10);
  --sidebar-w:248px;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
a:hover{color:var(--brand-700);}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);letter-spacing:.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid rgba(23,86,125,.35);outline-offset:2px;border-radius:6px;}

/* ============ 左侧固定导航 ============ */
.sidebar{
  position:fixed;
  left:0;top:0;
  width:var(--sidebar-w);
  height:100vh;
  background:var(--surface);
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  z-index:80;
  overflow-y:auto;
  transform:translateX(-100%);
  transition:transform 220ms ease;
}
.sidebar.open{transform:translateX(0);}
.sidebar-logo{
  height:72px;
  display:flex;
  align-items:center;
  gap:10px;
  padding:0 20px;
  flex:none;
}
.sidebar-logo svg{width:30px;height:30px;flex:none;}
.sidebar-logo span{
  font-size:15px;
  font-weight:700;
  color:var(--ink);
  letter-spacing:.01em;
  line-height:1.25;
}
.sidebar-nav{
  padding:8px 14px 16px;
  display:flex;
  flex-direction:column;
  gap:4px;
}
.nav-item{
  position:relative;
  display:flex;
  align-items:center;
  height:44px;
  padding:0 14px;
  border-radius:10px;
  font-size:15px;
  color:var(--ink-2);
  transition:background-color .18s ease,color .18s ease;
}
.nav-item:hover{background:rgba(23,86,125,.06);color:var(--brand);}
.nav-item.active{
  background:rgba(23,86,125,.08);
  color:var(--brand);
  font-weight:700;
}
.nav-item.active::before{
  content:"";
  position:absolute;
  left:0;top:10px;bottom:10px;
  width:3px;
  border-radius:2px;
  background:var(--brand);
}
.sidebar-secondary{
  margin-top:auto;
  padding:16px 14px;
  display:flex;
  flex-direction:column;
  gap:12px;
  border-top:1px solid var(--line);
}
.subscribe-mini{
  background:rgba(23,86,125,.06);
  border-radius:14px;
  padding:14px;
}
.subscribe-mini p{
  font-size:13px;
  line-height:1.7;
  color:var(--ink-2);
  margin-bottom:8px;
}
.subscribe-mini a{
  font-size:13px;
  font-weight:700;
  color:var(--brand);
}
.subscribe-mini a:hover{text-decoration:underline;}
.help-link{
  font-size:13px;
  color:var(--ink-3);
  padding-left:2px;
}
.help-link:hover{color:var(--brand);}
.sidebar-foot{
  padding:14px 20px 18px;
  border-top:1px solid var(--line);
  display:flex;
  flex-direction:column;
  gap:4px;
  font-size:12px;
  color:var(--ink-3);
  flex:none;
}
.overlay{
  position:fixed;
  inset:0;
  background:rgba(16,32,48,.45);
  opacity:0;
  visibility:hidden;
  transition:opacity .22s ease,visibility .22s ease;
  z-index:70;
}
.overlay.show{opacity:1;visibility:visible;}

/* ============ 移动端顶栏 ============ */
.mobile-topbar{
  height:56px;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  display:flex;
  align-items:center;
  gap:12px;
  padding:0 14px;
  position:sticky;
  top:0;
  z-index:60;
}
.hamburger{
  width:38px;height:38px;
  border:1px solid var(--line);
  background:var(--surface);
  border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  color:var(--ink-2);
  flex:none;
}
.hamburger:hover{background:var(--brand-50);color:var(--brand);}
.topbar-logo{
  display:flex;
  align-items:center;
  gap:8px;
  min-width:0;
  color:var(--ink);
}
.topbar-logo svg{width:24px;height:24px;flex:none;}
.topbar-logo span{
  font-size:14px;
  font-weight:700;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.topbar-cta{margin-left:auto;flex:none;}

/* ============ 主内容区 ============ */
.app-body{margin-left:0;}
.main{padding:26px 0 72px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ink-3);
  margin-bottom:6px;
}
.breadcrumb a{color:var(--ink-3);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#C6D1DC;}
.breadcrumb .current{color:var(--ink-2);}

/* ============ 文章头部 ============ */
.article-head{margin:18px 0 0;}
.article-head h1{
  font-size:26px;
  line-height:1.36;
  font-weight:700;
  color:var(--ink);
  max-width:900px;
  letter-spacing:.01em;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-top:16px;
  font-size:13px;
  color:var(--ink-3);
}
.article-meta .dot{
  width:3px;height:3px;
  border-radius:50%;
  background:#C6D1DC;
  flex:none;
}
.article-divider{
  height:1px;
  background:var(--line);
  margin:22px 0 30px;
}

/* ============ 布局 ============ */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:36px;
  align-items:start;
}

/* ============ 正文 ============ */
.article-content{
  font-size:17px;
  line-height:1.85;
  color:var(--ink-2);
  max-width:760px;
  word-wrap:break-word;
  overflow-wrap:break-word;
}
.article-content > *:first-child{margin-top:0;}
.article-content p{margin:0 0 1.2em;}
.article-content h2{
  position:relative;
  font-size:22px;
  line-height:1.42;
  font-weight:700;
  color:var(--ink);
  margin:2em 0 .8em;
  padding-left:14px;
}
.article-content h2::before{
  content:"";
  position:absolute;
  left:0;top:.28em;bottom:.28em;
  width:4px;
  border-radius:2px;
  background:var(--brand);
}
.article-content h3{
  font-size:19px;
  line-height:1.5;
  font-weight:700;
  color:var(--ink);
  margin:1.6em 0 .7em;
}
.article-content h4{
  font-size:17px;
  font-weight:700;
  color:var(--ink);
  margin:1.4em 0 .6em;
}
.article-content ul,.article-content ol{
  margin:0 0 1.2em;
  padding-left:1.3em;
}
.article-content ul{list-style:disc;}
.article-content ol{list-style:decimal;}
.article-content li{margin-bottom:.5em;}
.article-content blockquote{
  margin:1.5em 0;
  padding:14px 20px;
  background:var(--brand-50);
  border-left:3px solid var(--brand);
  border-radius:0 10px 10px 0;
  color:var(--ink-2);
  font-size:16px;
}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content img{
  display:block;
  max-width:100%;
  height:auto;
  margin:22px auto;
  border-radius:12px;
}
.article-content figure{margin:22px 0;}
.article-content figcaption{
  font-size:12px;
  color:var(--ink-3);
  text-align:center;
  margin-top:8px;
}
.article-content table{
  width:100%;
  border-collapse:collapse;
  margin:1.5em 0;
  font-size:15px;
  background:var(--surface);
  border-radius:10px;
  overflow:hidden;
}
.article-content th,.article-content td{
  border:1px solid var(--line);
  padding:10px 14px;
  text-align:left;
  vertical-align:top;
}
.article-content th{
  background:var(--brand-50);
  color:var(--ink);
  font-weight:700;
}
.article-content a{
  color:var(--brand);
  border-bottom:1px solid rgba(23,86,125,.3);
}
.article-content a:hover{border-bottom-color:var(--brand);}
.article-content code{
  background:#F1F5F9;
  border-radius:6px;
  padding:2px 6px;
  font-size:14px;
  color:var(--brand-700);
}
.article-content hr{
  border:0;
  height:1px;
  background:var(--line);
  margin:2em 0;
}

/* ============ 空态 ============ */
.empty-state{
  text-align:center;
  padding:48px 20px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-block);
}
.empty-state svg{
  width:48px;height:48px;
  color:rgba(23,86,125,.3);
  margin-bottom:14px;
}
.empty-state p{
  font-size:15px;
  color:var(--ink-2);
  margin-bottom:18px;
}
.empty-actions{
  display:flex;
  justify-content:center;
  gap:12px;
  flex-wrap:wrap;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 20px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  white-space:nowrap;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease,opacity .18s ease;
}
.btn-primary{
  background:var(--brand);
  color:#fff;
  box-shadow:var(--sh-sm);
}
.btn-primary:hover{
  background:#145074;
  color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--sh-md);
}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;
  color:var(--brand);
  border-color:var(--brand);
}
.btn-ghost:hover{background:rgba(23,86,125,.08);color:var(--brand-700);}
.btn-plain{
  background:var(--surface);
  color:var(--ink-2);
  border-color:var(--line);
}
.btn-plain:hover{background:var(--brand-50);color:var(--brand);border-color:rgba(23,86,125,.3);}
.btn-sm{height:36px;padding:0 14px;font-size:14px;border-radius:9px;}
.btn-block{width:100%;}
.btn:disabled{opacity:.5;cursor:not-allowed;}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:24px;
  padding:0 10px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  background:var(--brand-50);
  color:var(--brand);
  white-space:nowrap;
}
.badge-live{
  background:var(--accent);
  color:#fff;
}
.badge-muted{
  background:#F1F5F9;
  color:var(--ink-2);
}
.pulse-dot{
  width:6px;height:6px;
  border-radius:50%;
  background:#fff;
  animation:pulse 1.4s infinite ease-in-out;
}
@keyframes pulse{
  0%,100%{opacity:1;transform:scale(1);}
  50%{opacity:.45;transform:scale(.7);}
}

/* ============ 右侧栏 ============ */
.article-aside{
  display:flex;
  flex-direction:column;
  gap:20px;
  position:static;
}
.aside-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:20px;
  box-shadow:var(--sh-sm);
}
.aside-title{
  font-size:15px;
  font-weight:700;
  color:var(--ink);
  letter-spacing:.01em;
}
.toc-card summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:15px;
  font-weight:700;
  color:var(--ink);
}
.toc-card summary::-webkit-details-marker{display:none;}
.toc-card summary::after{
  content:"+";
  font-size:16px;
  color:var(--ink-3);
  line-height:1;
}
.toc-card[open] summary::after{content:"−";}
.toc-list{
  margin-top:14px;
  display:flex;
  flex-direction:column;
  gap:2px;
}
.toc-list a{
  display:block;
  font-size:13px;
  line-height:1.6;
  color:var(--ink-2);
  padding:6px 8px 6px 10px;
  border-left:2px solid var(--line);
  border-radius:0 8px 8px 0;
  transition:color .18s ease,border-color .18s ease,background-color .18s ease;
}
.toc-list a:hover{
  color:var(--brand);
  border-left-color:var(--brand);
  background:var(--brand-50);
}
.hot-list{
  margin-top:14px;
  display:flex;
  flex-direction:column;
}
.hot-list li + li{border-top:1px solid #EDF1F6;}
.hot-list a{
  display:flex;
  gap:10px;
  align-items:flex-start;
  padding:11px 0;
  font-size:14px;
  line-height:1.6;
  color:var(--ink-2);
  transition:transform .18s ease,color .18s ease;
}
.hot-list a:hover{color:var(--brand);transform:translateX(2px);}
.hot-list .num{
  flex:none;
  width:20px;
  font-size:12px;
  font-weight:700;
  color:var(--ink-3);
  font-variant-numeric:tabular-nums;
  line-height:1.8;
}
.hot-list li:nth-child(-n+3) .num{color:var(--brand);}
.aside-download{padding:0;overflow:hidden;}
.aside-download img{
  width:100%;
  height:126px;
  object-fit:cover;
  display:block;
}
.aside-download-inner{padding:18px 20px 20px;}
.aside-download-inner h3{
  font-size:15px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:8px;
}
.aside-download-inner p{
  font-size:13px;
  line-height:1.7;
  color:var(--ink-3);
  margin-bottom:14px;
}

/* ============ 相关推荐 ============ */
.related{
  margin-top:56px;
  padding-top:36px;
  border-top:1px solid var(--line);
}
.related-head{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:16px;
  margin-bottom:20px;
}
.related-head h2{
  font-size:20px;
  font-weight:700;
  color:var(--ink);
}
.related-head a{
  font-size:14px;
  color:var(--brand);
}
.related-head a:hover{text-decoration:underline;}
.related-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:16px;
}
.related-card{
  display:block;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:18px 20px;
  box-shadow:var(--sh-sm);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.related-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--sh-md);
  border-color:rgba(23,86,125,.24);
}
.related-card h3{
  font-size:16px;
  line-height:1.5;
  font-weight:700;
  color:var(--ink);
  margin:10px 0 10px;
}
.related-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding-top:10px;
  border-top:1px solid var(--line);
  font-size:12px;
  color:var(--ink-3);
}
.related-meta .dot{
  width:3px;height:3px;
  border-radius:50%;
  background:#C6D1DC;
}
.related-foot{
  margin-top:24px;
  display:flex;
  justify-content:flex-start;
}

/* ============ 页脚 ============ */
.footer{
  background:#10202D;
  color:rgba(255,255,255,.72);
  padding:56px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:32px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:14px;
}
.footer-brand svg{width:32px;height:32px;flex:none;}
.footer-brand strong{
  color:#fff;
  font-size:17px;
  letter-spacing:.01em;
}
.footer p{
  font-size:13px;
  line-height:1.8;
  color:rgba(255,255,255,.6);
  max-width:340px;
}
.footer h4{
  color:#fff;
  font-size:15px;
  font-weight:600;
  margin-bottom:16px;
}
.footer-links{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.footer-links a{
  color:rgba(255,255,255,.72);
  font-size:14px;
  line-height:1.6;
}
.footer-links a:hover{
  color:#fff;
  text-decoration:underline;
}
.footer-bottom{
  margin-top:40px;
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0;
  display:flex;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  font-size:12px;
  color:rgba(255,255,255,.5);
}

/* ============ 断点 ============ */
@media (max-width:639px){
  .relded{padding:0;}
  .aside-card{border-radius:12px;}
  .article-content{font-size:16px;line-height:1.8;}
  .article-content h2{font-size:20px;}
  .article-content h3{font-size:17px;}
}

@media (min-width:640px){
  .container{padding:0 24px;}
  .article-head h1{font-size:32px;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
}

@media (min-width:768px){
  .footer-grid{
    grid-template-columns:1.2fr 1fr 1fr 1fr;
    gap:40px;
  }
}

@media (min-width:1024px){
  .sidebar{transform:none;}
  .overlay{display:none;}
  .mobile-topbar{display:none;}
  .app-body{margin-left:var(--sidebar-w);}
  .main{padding:36px 0 88px;}
  .container{padding:0 40px;}
  .article-head h1{font-size:38px;}
  .related-grid{grid-template-columns:repeat(3,1fr);}
}

@media (min-width:1200px){
  .article-layout{
    grid-template-columns:minmax(0,1fr) 280px;
    gap:40px;
  }
  .article-aside{
    position:sticky;
    top:24px;
    max-height:calc(100vh - 48px);
    overflow-y:auto;
    padding-right:2px;
  }
}

@media (min-width:1440px){
  .container{max-width:1280px;}
}

/* roulang page: category1 */
:root{
  --brand:#17567D;
  --brand-700:#114160;
  --brand-50:#EEF4F9;
  --accent:#FF6A3D;
  --ink:#14202B;
  --ink-2:#4A5A6A;
  --ink-3:#8794A3;
  --line:#E6ECF2;
  --bg:#F7F9FC;
  --surface:#FFFFFF;
  --danger:#D64545;
  --radius-card:14px;
  --radius-block:20px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-sm:0 1px 2px rgba(20,40,70,.06);
  --shadow-md:0 6px 18px rgba(20,40,70,.08);
  --shadow-lg:0 16px 40px rgba(20,40,70,.10);
  --sidebar-w:248px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;border-style:none}
a{color:inherit;text-decoration:none;background-color:transparent}
a:hover,a:focus{text-decoration:none}
button,input{font-family:inherit;font-size:inherit;line-height:inherit;margin:0}
button{cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4{color:var(--ink);margin:0;line-height:1.3;font-weight:700;letter-spacing:.01em}
h1{font-size:clamp(28px,3.6vw,40px);line-height:1.24}
h2{font-size:clamp(22px,2.4vw,28px);line-height:1.3}
h3{font-size:20px;line-height:1.4}
p{margin:0}
ul,ol,dl,dd,dt,figure{margin:0;padding:0;list-style:none}
svg{display:block}
::selection{background:rgba(23,86,125,.16)}

/* ---------- 布局容器 ---------- */
.main{margin-left:var(--sidebar-w);min-height:100vh}
.container{max-width:1200px;margin:0 auto;padding:0 40px;width:100%}
@media (min-width:1440px){
  .container{max-width:1280px}
}

/* ---------- 栅格间距覆盖 ---------- */
.grid-x{margin-left:-12px;margin-right:-12px}
.grid-x>.cell{padding-left:12px;padding-right:12px}

/* ---------- 左侧栏 ---------- */
.sidebar{
  position:fixed;
  left:0;top:0;
  width:var(--sidebar-w);
  height:100vh;
  background:var(--surface);
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  padding:0 16px;
  z-index:70;
  overflow-y:auto;
}
.sidebar-logo{
  height:72px;
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.sidebar-logo svg{width:30px;height:30px;flex:0 0 auto}
.sidebar-logo .logo-text{
  font-size:15px;
  font-weight:700;
  color:var(--ink);
  letter-spacing:.01em;
  white-space:nowrap;
}
.sidebar-nav{display:flex;flex-direction:column;gap:4px;margin-top:8px}
.nav-item{
  position:relative;
  height:44px;
  display:flex;
  align-items:center;
  padding:0 12px;
  border-radius:10px;
  font-size:15px;
  color:var(--ink-2);
  transition:background-color .18s ease,color .18s ease;
}
.nav-item:hover{background:rgba(23,86,125,.06);color:var(--brand)}
.nav-item:focus-visible{outline:2px solid rgba(23,86,125,.35);outline-offset:2px}
.nav-item.active{
  background:rgba(23,86,125,.08);
  color:var(--brand);
  font-weight:700;
}
.nav-item.active::before{
  content:"";
  position:absolute;
  left:0;top:10px;bottom:10px;
  width:3px;
  border-radius:2px;
  background:var(--brand);
}
.sidebar-extra{margin-top:24px;display:flex;flex-direction:column;gap:16px}
.mini-card{
  background:var(--brand-50);
  border-radius:var(--radius-card);
  padding:16px;
}
.mini-title{
  display:flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;color:var(--ink);
  margin-bottom:6px;
}
.mini-title svg{width:18px;height:18px;color:var(--brand)}
.mini-card p{font-size:13px;line-height:1.7;color:var(--ink-2)}
.mini-link{
  display:inline-block;
  margin-top:10px;
  font-size:13px;
  font-weight:700;
  color:var(--brand);
  border-bottom:1px solid transparent;
}
.mini-link:hover{border-bottom-color:var(--brand)}
.sidebar-links{display:flex;flex-direction:column;gap:10px;padding:0 4px}
.sidebar-links a{font-size:13px;color:var(--ink-3)}
.sidebar-links a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.sidebar-foot{
  margin-top:auto;
  padding:20px 4px 20px;
  display:flex;
  flex-direction:column;
  gap:4px;
  font-size:12px;
  color:var(--ink-3);
  border-top:1px solid var(--line);
  margin-top:24px;
}

/* ---------- 移动端顶栏与抽屉 ---------- */
.topbar{
  display:none;
  position:sticky;
  top:0;
  height:56px;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  z-index:50;
  align-items:center;
  justify-content:space-between;
  padding:0 16px;
  gap:12px;
}
.burger{width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;color:var(--ink)}
.burger:hover{background:rgba(23,86,125,.06)}
.burger svg{width:22px;height:22px}
.topbar-logo{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--ink);min-width:0}
.topbar-logo svg{width:24px;height:24px;flex:0 0 auto}
.topbar-logo span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.drawer{
  position:fixed;
  left:0;top:0;bottom:0;
  width:280px;
  background:var(--surface);
  z-index:80;
  transform:translateX(-100%);
  transition:transform .22s ease;
  padding:0 16px;
  display:flex;
  flex-direction:column;
  overflow-y:auto;
  box-shadow:var(--shadow-lg);
}
.drawer.open{transform:translateX(0)}
.mask{
  position:fixed;
  inset:0;
  background:rgba(16,32,48,.45);
  opacity:0;
  visibility:hidden;
  transition:opacity .22s ease,visibility .22s ease;
  z-index:75;
}
.mask.open{opacity:1;visibility:visible}

/* ---------- 按钮 ---------- */
.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;
  transition:background-color .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn:focus-visible{outline:2px solid rgba(23,86,125,.35);outline-offset:2px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:var(--brand-700);transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-sm)}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:rgba(23,86,125,.08);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.5;pointer-events:none}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:26px;
  padding:0 12px;
  border-radius:var(--radius-pill);
  font-size:12px;
  font-weight:600;
  white-space:nowrap;
}
.badge-brand{background:var(--brand-50);color:var(--brand)}
.badge-muted{background:#F1F4F8;color:var(--ink-2)}
.badge-live{background:var(--accent);color:#fff}
.dot-live{
  width:6px;height:6px;border-radius:50%;
  background:#fff;display:inline-block;
  animation:pulse 1.6s ease-in-out infinite;
}
@keyframes pulse{
  0%,100%{opacity:1;transform:scale(1)}
  50%{opacity:.45;transform:scale(.8)}
}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}

/* ---------- 页头带 ---------- */
.page-head{
  background-color:var(--brand-50);
  background-image:linear-gradient(rgba(247,249,252,.90),rgba(247,249,252,.90)),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
  padding:40px 0 36px;
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:16px;flex-wrap:wrap}
.crumb a{color:var(--ink-3)}
.crumb a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.crumb .sep{color:#C3CDD8}
.crumb .current{color:var(--ink-2)}
.page-head h1{max-width:880px}
.page-sub{
  margin-top:14px;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-2);
  max-width:760px;
}

/* ---------- 板块 ---------- */
.section{padding:72px 0}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap}
.section-head p{margin-top:10px;font-size:15px;color:var(--ink-2);max-width:700px}
.section-label{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:700;color:var(--brand);
  letter-spacing:.08em;
  margin-bottom:10px;
  text-transform:uppercase;
}

/* ---------- 两栏图文 ---------- */
.split-text p{font-size:16px;line-height:1.85;margin-bottom:18px}
.split-text p:last-child{margin-bottom:0}
.media-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-block);
  overflow:hidden;
  box-shadow:var(--shadow-md);
}
.media-card img{width:100%;aspect-ratio:4/3;object-fit:cover}
.media-card figcaption{
  padding:16px 20px;
  font-size:13px;
  color:var(--ink-3);
  border-top:1px solid var(--line);
  background:var(--surface);
}
.media-note{
  margin-top:16px;
  background:var(--brand-50);
  border-radius:var(--radius-card);
  padding:16px 20px;
  font-size:14px;
  line-height:1.75;
  color:var(--ink-2);
}
.media-note strong{color:var(--ink)}

/* ---------- 要点清单 ---------- */
.point-list{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px 24px;
}
.point-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:20px;
  box-shadow:var(--shadow-sm);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.point-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#D8E3EC}
.point-item dt{
  display:flex;align-items:center;gap:8px;
  font-size:15px;font-weight:700;color:var(--ink);
  margin-bottom:8px;
}
.point-item dt svg{width:18px;height:18px;color:var(--brand);flex:0 0 auto}
.point-item dd{font-size:14px;line-height:1.75;color:var(--ink-2)}

/* ---------- 卡片 ---------- */
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  height:100%;
  transition:transform .18s ease,box-shadow .18s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.card-cover{position:relative;width:100%;aspect-ratio:16/10;overflow:hidden;background:var(--brand-50)}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.card:hover .card-cover img{transform:scale(1.03)}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.card-title{font-size:17px;font-weight:700;color:var(--ink);line-height:1.45}
.card-excerpt{font-size:14px;line-height:1.7;color:var(--ink-2)}
.card-foot{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  font-size:13px;
  color:var(--ink-3);
}
.card-foot .tag{color:var(--brand)}
.card-foot a{color:var(--brand);font-weight:600}
.card-foot a:hover{text-decoration:underline;text-underline-offset:3px}

/* ---------- 步骤流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;counter-reset:step}
.step{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px 20px;
  box-shadow:var(--shadow-sm);
  transition:transform .18s ease,box-shadow .18s ease;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.step-num{
  width:36px;height:36px;
  border-radius:50%;
  border:1.6px solid var(--brand);
  color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;
  font-variant-numeric:tabular-nums;
  margin-bottom:14px;
  background:var(--brand-50);
}
.step h3{font-size:16px;margin-bottom:8px}
.step p{font-size:14px;line-height:1.75;color:var(--ink-2)}
.step-line{
  position:absolute;
  top:42px;right:-14px;
  width:28px;height:1px;
  background:var(--line);
}
.step:last-child .step-line{display:none}

/* ---------- FAQ ---------- */
.faq{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-block);overflow:hidden;box-shadow:var(--shadow-sm)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  position:relative;
  width:100%;
  min-height:48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:14px 24px 14px 24px;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  transition:color .18s ease,background-color .18s ease;
}
.faq-q::before{
  content:"";
  position:absolute;
  left:24px;top:0;
  width:0;height:2px;
  background:var(--brand);
  border-radius:2px;
  transition:width .18s ease;
}
.faq-item.open .faq-q::before{width:40px}
.faq-q:hover{color:var(--brand);background:rgba(23,86,125,.03)}
.faq-q:focus-visible{outline:2px solid rgba(23,86,125,.35);outline-offset:-2px}
.faq-icon{position:relative;width:20px;height:20px;flex:0 0 20px}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand);border-radius:2px}
.faq-icon::before{left:3px;right:3px;top:9px;height:2px}
.faq-icon::after{top:3px;bottom:3px;left:9px;width:2px;transition:transform .18s ease}
.faq-item.open .faq-icon::after{transform:scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .18s ease}
.faq-item.open .faq-a{max-height:420px}
.faq-a-inner{padding:0 24px 22px 24px;font-size:15px;line-height:1.85;color:var(--ink-2)}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--brand-50);
  border-radius:var(--radius-block);
  padding:36px 40px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  border:1px solid #DCE8F1;
}
.cta-band h2{font-size:clamp(20px,2.2vw,26px);margin-bottom:10px}
.cta-band p{font-size:15px;line-height:1.8;color:var(--ink-2);max-width:620px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto}

/* ---------- 页脚 ---------- */
.footer{background:#10202D;color:rgba(255,255,255,.72);padding:56px 0 0;margin-top:0}
.footer h4{color:#fff;font-size:14px;font-weight:700;letter-spacing:.02em}
.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff}
.footer-brand svg{width:28px;height:28px;flex:0 0 auto}
.footer-brand strong{font-size:16px;font-weight:700;color:#fff}
.footer p{font-size:14px;line-height:1.8;margin-top:14px;color:rgba(255,255,255,.66)}
.footer-links{display:flex;flex-direction:column;gap:10px;margin-top:14px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);width:fit-content}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  margin-top:44px;
  border-top:1px solid rgba(255,255,255,.12);
  padding:18px 0 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  font-size:12px;
  color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .step-line{display:none}
}
@media (max-width:1023px){
  .sidebar{display:none}
  .main{margin-left:0}
  .topbar{display:flex}
  .container{padding:0 20px}
  .section{padding:48px 0}
  .page-head{padding:28px 0 26px}
  .cta-band{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
}
@media (max-width:767px){
  .point-list{grid-template-columns:1fr}
  .grid-x{margin-left:-8px;margin-right:-8px}
  .grid-x>.cell{padding-left:8px;padding-right:8px}
  .cta-band{padding:28px 22px}
  .faq-q{font-size:15px;padding:14px 18px}
  .faq-a-inner{padding:0 18px 20px 18px}
}
@media (max-width:639px){
  .steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .card-body{padding:16px}
  .point-item{padding:16px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
}

/* roulang page: category3 */
:root{
  --brand:#17567D;
  --brand-700:#114160;
  --brand-50:#EEF4F9;
  --accent:#FF6A3D;
  --ink:#14202B;
  --ink-2:#4A5A6A;
  --ink-3:#8794A3;
  --line:#E6ECF2;
  --bg:#F7F9FC;
  --surface:#FFFFFF;
  --r-sm:10px;
  --r-card:14px;
  --r-block:20px;
  --r-pill:999px;
  --sh-sm:0 1px 2px rgba(20,40,70,.06);
  --sh-md:0 6px 18px rgba(20,40,70,.08);
  --sh-lg:0 16px 40px rgba(20,40,70,.10);
  --sidebar:248px;
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{color:var(--ink);margin:0;letter-spacing:.01em;font-weight:700;line-height:1.35}
p{margin:0}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--brand-700)}
img{max-width:100%;display:block}
ul,ol,dl{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid rgba(23,86,125,.35);outline-offset:2px;border-radius:6px}

.container{max-width:var(--maxw);margin:0 auto;padding:0 40px;width:100%}
.shell-body{margin-left:var(--sidebar)}
.main{padding-bottom:8px}

/* ============ 左侧固定栏 ============ */
.shell-sidebar{
  position:fixed;top:0;left:0;width:var(--sidebar);height:100vh;
  background:var(--surface);border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:0 16px 18px;z-index:80;overflow-y:auto;
}
.logo-area{
  height:72px;display:flex;align-items:center;flex:0 0 auto;
}
.logo{
  display:flex;align-items:center;gap:9px;color:var(--ink);font-size:15px;
  letter-spacing:.01em;text-decoration:none;
}
.logo:hover{color:var(--brand-700)}
.logo svg{width:30px;height:30px;flex:0 0 auto}
.logo strong{font-weight:700;font-size:16px}
.sidebar-nav{display:flex;flex-direction:column;gap:4px;margin-top:10px}
.nav-item{
  position:relative;display:flex;align-items:center;height:44px;
  padding:0 14px;border-radius:var(--r-sm);
  color:var(--ink-2);font-size:15px;text-decoration:none;
  transition:background .18s ease,color .18s ease;
}
.nav-item:hover{background:rgba(23,86,125,.06);color:var(--brand)}
.nav-item.active{background:rgba(23,86,125,.08);color:var(--brand);font-weight:700}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;
  border-radius:2px;background:var(--brand);
}
.sidebar-extra{margin-top:auto;padding-top:24px;display:flex;flex-direction:column;gap:14px}
.mini-card{
  background:var(--brand-50);border:1px solid var(--line);border-radius:var(--r-card);
  padding:14px;
}
.mini-card-title{display:block;font-size:13px;font-weight:700;color:var(--brand-700);margin-bottom:6px}
.mini-card p{font-size:13px;line-height:1.6;color:var(--ink-2)}
.mini-link{display:inline-block;margin-top:10px;font-size:13px;font-weight:600}
.text-link{font-size:13px;color:var(--ink-2)}
.text-link:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.sidebar-foot{
  margin-top:18px;padding-top:14px;border-top:1px solid var(--line);
  display:flex;flex-direction:column;gap:3px;font-size:12px;color:var(--ink-3);
}

/* ============ 移动端顶栏 ============ */
.shell-topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:56px;z-index:90;
  background:var(--surface);border-bottom:1px solid var(--line);
  align-items:center;gap:12px;padding:0 14px;
}
.hamburger{
  width:40px;height:40px;border:1px solid var(--line);background:#fff;border-radius:var(--r-sm);
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;flex:0 0 auto;
}
.hamburger span{display:block;width:16px;height:1.6px;background:var(--ink);border-radius:2px;position:relative}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:16px;height:1.6px;background:var(--ink);border-radius:2px;
}
.hamburger span::before{top:-5px}
.hamburger span::after{top:5px}
.topbar-logo{display:flex;align-items:center;gap:8px;color:var(--ink);font-size:14px;font-weight:700;text-decoration:none}
.topbar-logo svg{width:26px;height:26px}
.topbar-spacer{flex:1}
.btn-sm{height:36px;padding:0 14px;font-size:13px}
.scrim{
  display:none;position:fixed;inset:0;background:rgba(16,32,48,.45);
  z-index:70;opacity:0;transition:opacity .2s ease;
}
.scrim.show{display:block;opacity:1}

/* ============ 按钮与徽章 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:none}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:rgba(23,86,125,.08);color:var(--brand-700)}
.btn-plain{background:#fff;border-color:var(--line);color:var(--ink-2)}
.btn-plain:hover{border-color:var(--brand);color:var(--brand)}
.btn-block{width:100%}
.link-more{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:4px}
.link-more:hover{text-decoration:underline;text-underline-offset:3px}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:12px;font-weight:600;
  background:var(--brand-50);color:var(--brand);
}
.badge-soft{background:#F1F4F8;color:var(--ink-3);font-weight:500}
.badge-live{background:var(--accent);color:#fff}
.dot-live{
  width:6px;height:6px;border-radius:50%;background:#fff;display:inline-block;
  animation:pulse 1.6s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.8)}}
.badge-row{display:flex;flex-wrap:wrap;gap:8px}

/* ============ 页头带 ============ */
.page-band{
  background-image:linear-gradient(rgba(247,249,252,.90),rgba(247,249,252,.96)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
  padding:44px 0 52px;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3)}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:var(--ink-3);opacity:.7}
.breadcrumb .current{color:var(--ink-3)}
.page-band h1{font-size:40px;line-height:1.25;margin:18px 0 14px;max-width:840px}
.page-lead{font-size:16px;line-height:1.75;color:var(--ink-2);max-width:720px}
.page-band .badge-row{margin-top:22px}
.page-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}

/* ============ 通用板块 ============ */
.section{padding:72px 0}
.section-tight{padding:48px 0}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:20px;margin-bottom:28px;flex-wrap:wrap;
}
.section-head h2{font-size:28px;line-height:1.35}
.section-head p{font-size:14px;color:var(--ink-3);margin-top:8px;max-width:640px}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-sm);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-md)}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ============ 双列长文 ============ */
.split-layout{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:44px;align-items:start}
.article-col{max-width:760px}
.article-col h2{
  font-size:24px;line-height:1.4;margin:40px 0 16px;padding-left:14px;position:relative;
}
.article-col h2:first-child{margin-top:0}
.article-col h2::before{
  content:"";position:absolute;left:0;top:4px;bottom:4px;width:4px;border-radius:2px;background:var(--brand);
}
.article-col h3{font-size:19px;margin:28px 0 12px}
.article-col p{font-size:17px;line-height:1.85;margin-bottom:1.2em}
.article-col p:last-child{margin-bottom:0}
.note-list{display:flex;flex-direction:column;gap:0;margin:18px 0 24px}
.note-list li{
  display:flex;gap:14px;padding:14px 0;border-bottom:1px solid #EDF1F6;
  font-size:15px;line-height:1.7;transition:transform .18s ease,color .18s ease;
}
.note-list li:first-child{border-top:1px solid #EDF1F6}
.note-list li:hover{transform:translateX(2px);color:var(--brand)}
.note-num{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--brand);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;margin-top:2px;
}
.figure{margin:26px 0}
.figure img{border-radius:var(--r-card);box-shadow:var(--sh-sm);width:100%;height:auto}
.figure figcaption{font-size:12px;color:var(--ink-3);text-align:center;margin-top:10px}
.quote{
  background:#F4F7FA;border-left:3px solid var(--brand);border-radius:0 var(--r-sm) var(--r-sm) 0;
  padding:16px 18px;margin:24px 0;font-size:15px;color:var(--ink-2);line-height:1.8;
}

/* ============ 速览卡 ============ */
.quick-col{position:sticky;top:24px;display:flex;flex-direction:column;gap:18px}
.quick-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-sm);padding:22px;
}
.quick-card h3{font-size:17px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.quick-card h3 svg{width:20px;height:20px;flex:0 0 auto}
.quick-list{display:flex;flex-direction:column;gap:12px}
.quick-list li{display:flex;gap:10px;font-size:14px;line-height:1.65;color:var(--ink-2)}
.quick-list li strong{color:var(--ink);font-weight:600}
.tick{
  flex:0 0 auto;width:16px;height:16px;border-radius:50%;background:var(--brand-50);
  color:var(--brand);display:inline-flex;align-items:center;justify-content:center;
  font-size:11px;font-weight:700;margin-top:4px;
}
.quick-meta{display:flex;flex-direction:column;gap:8px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  font-size:13px;color:var(--ink-3)}
.quick-meta span{display:flex;justify-content:space-between;gap:10px}
.quick-meta b{color:var(--ink-2);font-weight:600}
.quick-card .btn{margin-top:16px}

/* ============ 三卡网格 ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.topic-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-sm);overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease;
}
.topic-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md)}
.topic-media{position:relative;aspect-ratio:16/10;background:var(--brand-50);overflow:hidden}
.topic-media img{width:100%;height:100%;object-fit:cover}
.topic-media .badge{position:absolute;left:12px;top:12px}
.topic-body{padding:20px}
.topic-body h3{font-size:18px;margin-bottom:10px}
.topic-body p{font-size:14px;line-height:1.7;color:var(--ink-2)}
.topic-foot{
  margin-top:16px;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3);
}
.topic-foot a{font-weight:600}

/* ============ 对照清单 ============ */
.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 32px;margin-top:8px}
.check-item{
  display:flex;gap:12px;padding:16px 0;border-bottom:1px solid #EDF1F6;
}
.check-item:last-child{border-bottom:0}
.check-item dt{font-size:15px;font-weight:700;color:var(--ink);flex:0 0 auto;min-width:96px}
.check-item dd{margin:0;font-size:14px;line-height:1.7;color:var(--ink-2)}
.panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-block);
  padding:32px;box-shadow:var(--sh-sm);
}

/* ============ FAQ ============ */
.faq-list{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-sm)}
.faq-item+.faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:48px;padding:16px 24px;background:transparent;border:0;
  font-size:16px;font-weight:600;color:var(--ink);text-align:left;cursor:pointer;
  position:relative;transition:color .18s ease,background .18s ease;
}
.faq-q:hover{color:var(--brand);background:rgba(23,86,125,.03)}
.faq-item.open .faq-q::before{
  content:"";position:absolute;left:0;top:12px;width:36px;height:2px;background:var(--brand);border-radius:2px;
}
.faq-icon{position:relative;flex:0 0 auto;width:18px;height:18px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:1px;transition:transform .18s ease,opacity .18s ease;
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-item.open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .18s ease}
.faq-a p{padding:0 24px 20px;font-size:15px;line-height:1.8;color:var(--ink-2)}

/* ============ CTA 带 ============ */
.cta-band{
  background:var(--brand-50);border:1px solid var(--line);border-radius:18px;
  padding:36px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;
}
.cta-band h2{font-size:24px;margin-bottom:10px}
.cta-band p{font-size:15px;color:var(--ink-2);max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto}

/* ============ 页脚 ============ */
.footer{background:#10202D;color:rgba(255,255,255,.72);padding:56px 0 24px;margin-top:24px}
.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;margin-bottom:14px}
.footer-brand svg{width:30px;height:30px;flex:0 0 auto}
.footer-brand strong{font-size:17px;font-weight:700}
.footer p{font-size:14px;line-height:1.75;color:rgba(255,255,255,.72)}
.footer h4{color:#fff;font-size:15px;margin:0 0 14px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:rgba(255,255,255,.72);font-size:14px}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);margin-top:36px;padding-top:18px;font-size:12px;
  color:rgba(255,255,255,.6);
}

/* ============ 响应式 ============ */
@media (min-width:1440px){
  :root{--maxw:1280px}
}
@media (max-width:1023.98px){
  .shell-topbar{display:flex}
  .shell-body{margin-left:0;padding-top:56px}
  .shell-sidebar{
    width:280px;transform:translateX(-100%);
    transition:transform .22s ease;box-shadow:var(--sh-lg);
  }
  .shell-sidebar.open{transform:translateX(0)}
  .container{padding:0 24px}
  .split-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .quick-col{position:static}
  .article-col{max-width:none}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .page-band h1{font-size:32px}
}
@media (max-width:639.98px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .page-band{padding:32px 0 40px}
  .page-band h1{font-size:26px;line-height:1.32}
  .page-lead{font-size:15px}
  .page-actions .btn{width:100%}
  .section-head h2{font-size:22px}
  .article-col h2{font-size:20px}
  .card,.quick-card,.panel{padding:16px;border-radius:var(--r-card)}
  .grid-3{grid-template-columns:minmax(0,1fr);gap:16px}
  .check-grid{grid-template-columns:minmax(0,1fr)}
  .check-item{flex-direction:column;gap:6px}
  .faq-q{font-size:15px;padding:14px 16px}
  .faq-a p{padding:0 16px 18px}
  .cta-band{flex-direction:column;align-items:stretch;text-align:center;padding:26px 20px}
  .cta-actions{justify-content:center;flex-direction:column}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:26px}
  .footer{padding:40px 0 20px}
}

/* roulang page: category2 */
:root{
  --brand:#17567D;
  --brand-700:#114160;
  --brand-600:#134B6D;
  --brand-50:#EEF4F9;
  --accent:#FF6A3D;
  --ink:#14202B;
  --ink-2:#4A5A6A;
  --ink-3:#8794A3;
  --line:#E6ECF2;
  --line-soft:#EDF1F6;
  --bg:#F7F9FC;
  --surface:#FFFFFF;
  --danger:#D64545;
  --radius-btn:10px;
  --radius:14px;
  --radius-lg:20px;
  --radius-pill:999px;
  --sh-sm:0 1px 2px rgba(20,40,70,.06);
  --sh-md:0 6px 18px rgba(20,40,70,.08);
  --sh-lg:0 16px 40px rgba(20,40,70,.10);
  --sidebar-w:248px;
  --gutter:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure,ul,ol,dl,dd{margin:0;padding:0}
ul,ol{list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,.nav-item:focus-visible{outline:2px solid rgba(23,86,125,.35);outline-offset:2px;border-radius:10px}
::selection{background:rgba(23,86,125,.16)}

/* ---------- 布局骨架 ---------- */
.main{margin-left:var(--sidebar-w)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 40px}
@media (min-width:1440px){.container{max-width:1280px}}

/* ---------- 左侧导航 ---------- */
.sidebar{
  position:fixed;top:0;left:0;z-index:70;
  width:var(--sidebar-w);height:100vh;
  background:var(--surface);
  border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:0 16px 18px;
}
.sidebar-logo{
  height:72px;display:flex;align-items:center;gap:10px;
  padding:0 8px;flex-shrink:0;
}
.sidebar-logo svg{width:30px;height:30px;flex-shrink:0}
.sidebar-logo span{font-size:16px;font-weight:700;color:var(--brand);letter-spacing:.01em;line-height:1.2}
.sidebar-nav{display:flex;flex-direction:column;gap:4px;padding:6px 0;border-top:1px solid var(--line-soft)}
.nav-item{
  position:relative;display:flex;align-items:center;
  height:44px;padding:0 12px 0 16px;border-radius:10px;
  font-size:15px;color:var(--ink-2);
  transition:background .16s ease,color .16s ease;
}
.nav-item::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;border-radius:0 3px 3px 0;background:var(--brand);
  transition:height .18s ease;
}
.nav-item:hover{background:rgba(23,86,125,.06);color:var(--brand)}
.nav-item.active{background:rgba(23,86,125,.08);color:var(--brand);font-weight:700}
.nav-item.active::before{height:22px}

.sidebar-extra{margin-top:26px;display:flex;flex-direction:column;gap:14px}
.mini-card{background:var(--brand-50);border-radius:var(--radius);padding:16px}
.mini-card .mini-head{display:flex;align-items:center;gap:8px;color:var(--brand);font-size:13px;font-weight:700}
.mini-card p{font-size:13px;line-height:1.7;color:var(--ink-2);margin:8px 0 10px}
.mini-card .text-link{font-size:13px;font-weight:600;color:var(--brand);border-bottom:1px solid transparent}
.mini-card .text-link:hover{border-bottom-color:var(--brand)}
.sidebar-help{display:flex;flex-direction:column;gap:8px;padding-left:2px}
.sidebar-help a{font-size:13px;color:var(--ink-2);transition:color .16s ease}
.sidebar-help a:hover{color:var(--brand)}
.sidebar-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;flex-direction:column;gap:4px;
  font-size:12px;color:var(--ink-3);
}

/* ---------- 移动端顶栏 ---------- */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;z-index:80;
  height:56px;background:var(--surface);border-bottom:1px solid var(--line);
  align-items:center;justify-content:space-between;gap:12px;padding:0 16px;
}
.hamburger{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:10px;color:var(--ink-2)}
.hamburger:hover{background:rgba(23,86,125,.06);color:var(--brand)}
.topbar-logo{font-size:15px;font-weight:700;color:var(--brand);letter-spacing:.01em}
.overlay{
  position:fixed;inset:0;z-index:65;background:rgba(16,32,48,.45);
  opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease;
}
.overlay.show{opacity:1;visibility:visible}

/* ---------- 按钮 ---------- */
.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;letter-spacing:.01em;white-space:nowrap;
  transition:background .16s ease,color .16s ease,transform .16s ease,box-shadow .16s ease;
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-600);transform:translateY(-1px)}
.btn-primary:active{background:var(--brand-700);transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--brand);border:1px solid var(--brand)}
.btn-ghost:hover{background:rgba(23,86,125,.08);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 10px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:600;line-height:1;white-space:nowrap;
}
.badge-soft{background:var(--brand-50);color:var(--brand)}
.badge-plain{background:#F1F4F8;color:var(--ink-2)}
.badge-live{background:var(--accent);color:#fff}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.dot-live{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:.45;transform:scale(.8)}}

/* ---------- 板块 ---------- */
.section{padding:72px 0}
.section-tight{padding:56px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.section-head h2{font-size:28px;line-height:1.32;letter-spacing:.01em;color:var(--ink);font-weight:700}
.section-head .section-desc{margin-top:10px;font-size:15px;line-height:1.75;color:var(--ink-2);max-width:660px}
.section-more{font-size:14px;font-weight:600;color:var(--brand);white-space:nowrap;border-bottom:1px solid transparent;padding-bottom:2px}
.section-more:hover{border-bottom-color:var(--brand)}
.band-soft{background:var(--brand-50)}

/* ---------- 页头通栏 ---------- */
.page-banner{
  position:relative;
  padding:64px 0 56px;
  background-image:linear-gradient(rgba(247,249,252,.92),rgba(247,249,252,.94)),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:18px}
.crumb a{color:var(--ink-2);transition:color .16s ease}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:var(--ink-3)}
.crumb .current{color:var(--ink-3)}
.page-banner h1{font-size:40px;line-height:1.28;letter-spacing:.01em;color:var(--ink);font-weight:700;max-width:820px}
.banner-sub{margin-top:16px;font-size:17px;line-height:1.8;color:var(--ink-2);max-width:720px}
.banner-note{
  margin-top:26px;display:flex;flex-wrap:wrap;gap:10px;
  padding-top:22px;border-top:1px solid var(--line);
}

/* ---------- 数据卡 ---------- */
.stat-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;box-shadow:var(--sh-sm);height:100%;
  display:flex;flex-direction:column;gap:6px;
  transition:transform .18s ease,box-shadow .18s ease;
}
.stat-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md)}
.stat-num{font-size:26px;font-weight:700;color:var(--brand);letter-spacing:-.01em;font-variant-numeric:tabular-nums;line-height:1.2}
.stat-label{font-size:13px;color:var(--ink-3)}

/* ---------- 卡片 ---------- */
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--sh-sm);overflow:hidden;height:100%;
  display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-md)}
.card-media{position:relative;aspect-ratio:16/10;background:var(--brand-50);overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover}
.card-media .media-badge{position:absolute;left:14px;top:14px}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.card-title{font-size:18px;line-height:1.45;font-weight:700;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-title a:hover{color:var(--brand)}
.card-desc{font-size:14px;line-height:1.72;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--ink-3);
}
.card-foot .cat{color:var(--brand)}
.card-matrix .cell{display:flex}
.card-matrix .card{width:100%}

/* ---------- 时间线 ---------- */
.timeline{position:relative;padding-left:36px;margin-top:8px}
.timeline::before{
  content:"";position:absolute;left:9px;top:8px;bottom:8px;width:1px;background:var(--line);
}
.timeline-item{position:relative;padding-bottom:30px}
.timeline-item:last-child{padding-bottom:0}
.timeline-dot{
  position:absolute;left:-32px;top:8px;
  width:10px;height:10px;border-radius:50%;
  border:2px solid var(--brand);background:var(--surface);
}
.timeline-item.is-next .timeline-dot{border-color:var(--ink-3)}
.timeline-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 24px;box-shadow:var(--sh-sm);
  transition:box-shadow .18s ease,transform .18s ease;
}
.timeline-card:hover{box-shadow:var(--sh-md);transform:translateY(-2px)}
.timeline-head{display:flex;align-items:center;flex-wrap:wrap;gap:12px;margin-bottom:12px}
.timeline-ver{font-size:19px;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.timeline-date{font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums}
.timeline-card p{font-size:15px;line-height:1.8;color:var(--ink-2)}
.dot-list{margin-top:14px;display:flex;flex-direction:column;gap:10px}
.dot-list li{position:relative;padding-left:18px;font-size:14.5px;line-height:1.7;color:var(--ink-2)}
.dot-list li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;
  background:rgba(23,86,125,.35);
}

/* ---------- 1+3 说明区 ---------- */
.lead-block h2{font-size:28px;line-height:1.32;color:var(--ink);font-weight:700}
.lead-block p{margin-top:14px;font-size:15px;line-height:1.8;color:var(--ink-2)}
.rule-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;box-shadow:var(--sh-sm);height:100%;
  display:flex;flex-direction:column;gap:8px;
  transition:transform .18s ease,box-shadow .18s ease;
}
.rule-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md)}
.rule-card .num{
  display:inline-flex;align-items:center;justify-content:center;
  width:28px;height:28px;border-radius:8px;background:var(--brand-50);
  color:var(--brand);font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;
}
.rule-card h3{font-size:16px;font-weight:700;color:var(--ink);margin-top:4px}
.rule-card p{font-size:14px;line-height:1.72;color:var(--ink-2)}

/* ---------- FAQ ---------- */
.accordion{border:0;background:transparent;margin:0;list-style:none}
.accordion-item{
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--surface);box-shadow:var(--sh-sm);
  margin-bottom:12px;overflow:hidden;
}
.accordion-item:last-child{margin-bottom:0}
.accordion-title{
  position:relative;display:block;
  padding:0 60px 0 24px;height:48px;line-height:48px;
  font-size:16px;font-weight:600;color:var(--ink);
  border:0;background:transparent;text-decoration:none;
  transition:color .16s ease,background .16s ease;
}
.accordion-title:hover{color:var(--brand);background:rgba(23,86,125,.04)}
.accordion-title::before{
  content:"";position:absolute;left:24px;top:0;width:0;height:2px;
  background:var(--brand);border-radius:0;transition:width .18s ease;
  margin:0;font-size:0;
}
.accordion-item.is-active .accordion-title::before{width:30px}
.accordion-title::after{
  content:"+";position:absolute;right:22px;top:0;
  line-height:48px;font-size:20px;font-weight:400;color:var(--ink-3);
  transition:color .18s ease;
}
.accordion-item.is-active .accordion-title::after{content:"−";color:var(--brand)}
.accordion-content{
  padding:0 24px 22px;border:0;background:transparent;
  font-size:15px;line-height:1.8;color:var(--ink-2);
}
.accordion-content p{margin:0}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--brand-50);border-radius:18px;
  padding:36px 40px;display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band h2{font-size:24px;line-height:1.4;color:var(--ink);font-weight:700}
.cta-band p{margin-top:10px;font-size:15px;line-height:1.75;color:var(--ink-2);max-width:620px}
.cta-actions{display:flex;gap:12px;flex-shrink:0}

/* ---------- 提示条 ---------- */
.notice-bar{
  display:flex;align-items:center;gap:12px;
  background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--brand);
  border-radius:10px;padding:14px 18px;box-shadow:var(--sh-sm);
  font-size:14px;color:var(--ink-2);
}
.notice-bar svg{color:var(--brand);flex-shrink:0}

/* ---------- 页脚 ---------- */
.footer{background:#10202D;color:rgba(255,255,255,.72);padding:56px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand svg{width:26px;height:26px;flex-shrink:0}
.footer-brand strong{font-size:16px;color:#fff;font-weight:700;letter-spacing:.01em}
.footer p{font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.6);max-width:330px}
.footer h4{font-size:14px;color:#fff;font-weight:700;margin-bottom:14px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);transition:color .16s ease}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .sidebar{
    transform:translateX(-100%);
    transition:transform .22s ease;
    box-shadow:var(--sh-lg);
    width:280px;
  }
  .sidebar.open{transform:translateX(0)}
  .topbar{display:flex}
  .main{margin-left:0;padding-top:56px}
  .container{padding:0 20px}
  .page-banner{padding:44px 0 40px}
  .page-banner h1{font-size:32px}
  .section{padding:52px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .page-banner h1{font-size:28px;line-height:1.34}
  .banner-sub{font-size:15.5px}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:24px}
  .section-head h2{font-size:22px;line-height:1.38}
  .section{padding:44px 0}
  .section-tight{padding:36px 0}
  .cta-band{flex-direction:column;align-items:stretch;text-align:center;padding:28px 22px;gap:20px}
  .cta-actions{flex-direction:column}
  .cta-actions .btn{width:100%}
  .cta-band h2{font-size:20px}
  .footer{padding:44px 0 22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer p{max-width:none}
  .timeline{padding-left:28px}
  .timeline::before{left:7px}
  .timeline-dot{left:-26px}
  .timeline-card{padding:18px}
  .accordion-title{font-size:15px;height:auto;min-height:48px;line-height:1.5;padding:14px 52px 14px 18px}
  .accordion-title::after{right:18px;top:14px;line-height:1}
  .accordion-title::before{left:18px;top:0}
  .accordion-content{padding:0 18px 18px}
  .page-banner h1{font-size:26px}
}
@media (max-width:519px){
  .container{padding:0 16px}
  .card-body{padding:16px}
  .stat-card{padding:16px}
  .stat-num{font-size:22px}
  .badge-row{margin-top:16px}
}