/* roulang page: index */
:root{
  --brand:#1F5FD8;
  --brand-dark:#1749AE;
  --brand-light:#4C86EA;
  --brand-soft:#EEF4FF;
  --accent:#0FA39A;
  --accent-soft:#E6F6F4;
  --warm:#FF7A45;
  --bg:#F6F8FC;
  --surface:#FFFFFF;
  --border:#E3E9F2;
  --text:#1B2432;
  --muted:#5A6B82;
  --faint:#8A99AD;
  --ink:#12203A;
  --success:#1F9D6B;
  --warning:#D97706;
  --danger:#D9483B;
  --radius-card:14px;
  --radius-lg:20px;
  --radius-btn:10px;
  --shadow-1:0 2px 8px rgba(27,36,50,.05);
  --shadow-2:0 8px 24px rgba(27,36,50,.08);
  --container:1200px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-dark)}
p{margin:0 0 16px}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);letter-spacing:0}
ul{margin:0;padding:0;list-style:none}
button,input{font-family:inherit}
:focus-visible{outline:3px solid rgba(31,95,216,.22);outline-offset:2px;border-radius:6px}
.container{max-width:var(--container);padding-left:20px;padding-right:20px}
.wrap{max-width:var(--container);margin:0 auto;padding:0 20px}

/* ---------- header ---------- */
.site-header{background:var(--surface);border-bottom:1px solid var(--border)}
.brand-row{display:flex;align-items:center;gap:18px;height:68px}
.logo{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:var(--text);flex:0 0 auto}
.logo:hover{color:var(--text)}
.logo-mark{width:38px;height:38px;border-radius:11px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:14px;font-weight:700;letter-spacing:.5px}
.brand-tools{margin-left:auto;display:flex;align-items:center;gap:14px}
.brand-search{width:230px}
.brand-search .form-control{
  height:42px;border-radius:var(--radius-btn);border:1px solid var(--border);
  font-size:14px;color:var(--text);background:#F9FBFE;
}
.brand-search .form-control::placeholder{color:var(--faint)}
.brand-search .form-control:focus{
  border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,95,216,.14);background:#fff;
}
.link-plain{font-size:14px;color:var(--muted);white-space:nowrap}
.link-plain:hover{color:var(--brand)}
.channel-bar{position:sticky;top:0;z-index:1030;background:var(--surface);border-bottom:1px solid var(--border);transition:box-shadow .25s ease}
.channel-bar.is-stuck{box-shadow:var(--shadow-1)}
.channel-inner{display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:none;scroll-snap-type:x proximity}
.channel-inner::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;flex:0 0 auto;display:inline-flex;align-items:center;height:52px;
  padding:0 14px;font-size:15px;color:var(--muted);border-radius:8px;scroll-snap-align:start;
}
.channel-link:hover{background:var(--brand-soft);color:var(--brand)}
.channel-link.active{color:var(--brand);font-weight:600}
.channel-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:3px;
  background:var(--brand);border-radius:3px 3px 0 0;
}

/* ---------- buttons ---------- */
.btn-brand,.btn-ghost,.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);font-size:15px;
  font-weight:600;cursor:pointer;transition:all .25s ease;border:1px solid transparent;
}
.btn-brand{background:var(--brand);border-color:var(--brand);color:#fff}
.btn-brand:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-1px)}
.btn-line{background:#fff;border:1.5px solid var(--brand);color:var(--brand)}
.btn-line:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--brand);padding:0 6px;height:auto;font-weight:600}
.btn-ghost:hover{color:var(--brand-dark);text-decoration:underline;text-underline-offset:4px}
.btn-sm{height:38px;padding:0 16px;font-size:14px}

/* ---------- badges & pills ---------- */
.badge-soft{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);font-size:13px;font-weight:600;white-space:nowrap;
}
.badge-accent{background:var(--accent-soft);color:var(--accent)}
.badge-warm{background:#FFF2EC;color:#C2511F}
.badge-plain{background:#F1F4F9;color:var(--muted)}

/* ---------- hero ---------- */
.hero{background:var(--surface);padding:78px 0 88px;border-bottom:1px solid var(--border)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);font-size:13px;font-weight:600;margin-bottom:20px;
}
.hero h1{font-size:clamp(30px,4.2vw,46px);line-height:1.25;margin-bottom:18px}
.hero-sub{font-size:17px;color:var(--muted);max-width:520px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:32px}
.hero-stats{display:flex;flex-wrap:wrap;gap:10px 22px;color:var(--muted);font-size:14px}
.hero-stats span{display:inline-flex;align-items:center;gap:7px}
.dot{width:6px;height:6px;border-radius:50%;background:var(--brand-light);display:inline-block}
.hero-media{position:relative}
.hero-media>img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-lg);
  border:1px solid var(--border);box-shadow:var(--shadow-2);
}
.hero-float{
  position:absolute;left:-26px;bottom:26px;width:240px;background:#fff;border-radius:var(--radius-card);
  border:1px solid var(--border);box-shadow:var(--shadow-2);padding:12px;display:flex;gap:12px;align-items:center;
}
.hero-float img{width:58px;height:58px;border-radius:10px;object-fit:cover;border:1px solid var(--border)}
.hero-float strong{display:block;font-size:14px;line-height:1.4}
.hero-float span{font-size:12px;color:var(--faint)}

/* ---------- section ---------- */
.section{padding:80px 0}
.section-alt{background:var(--surface);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.section-head{margin-bottom:38px;max-width:760px}
.section-head .eyebrow{
  display:inline-block;font-size:13px;font-weight:700;color:var(--accent);letter-spacing:1px;margin-bottom:10px;
}
.section-head h2{font-size:clamp(24px,2.6vw,28px);line-height:1.3;margin-bottom:12px}
.section-head p{color:var(--muted);margin:0;font-size:15px}
.head-flex{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}

/* ---------- channel cards ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.channel-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:24px 22px;display:flex;flex-direction:column;min-height:196px;
  box-shadow:var(--shadow-1);transition:all .25s ease;
}
.channel-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:var(--brand-light);color:inherit}
.channel-num{
  width:38px;height:38px;border-radius:11px;background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;font-size:14px;font-weight:700;margin-bottom:18px;
}
.channel-card:nth-child(2) .channel-num{background:var(--accent-soft);color:var(--accent)}
.channel-card h3{font-size:20px;font-weight:600;margin-bottom:8px;color:var(--text)}
.channel-card p{font-size:14px;color:var(--muted);margin:0 0 18px}
.channel-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--faint)}
.channel-foot .arrow{color:var(--brand);font-size:16px;transition:transform .25s ease}
.channel-card:hover .arrow{transform:translateX(4px)}

/* ---------- featured ---------- */
.feat-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:24px}
.feat-main{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;transition:all .25s ease;
}
.feat-main:hover{box-shadow:var(--shadow-2);transform:translateY(-2px)}
.feat-main img{width:100%;aspect-ratio:16/9;object-fit:cover;border-bottom:1px solid var(--border)}
.feat-main .feat-body{padding:24px}
.feat-main h3{font-size:22px;line-height:1.4;margin:14px 0 12px;color:var(--text)}
.feat-main p{color:var(--muted);font-size:15px;margin:0}
.feat-side{display:grid;gap:20px}
.mini-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:14px;display:flex;gap:14px;align-items:center;box-shadow:var(--shadow-1);transition:all .25s ease;
}
.mini-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px)}
.mini-card img{width:96px;height:72px;border-radius:10px;object-fit:cover;flex:0 0 auto;border:1px solid var(--border)}
.mini-card h3{font-size:16px;font-weight:600;line-height:1.5;margin:6px 0 6px;color:var(--text)}
.mini-card .meta{font-size:12px;color:var(--faint)}
.placeholder{
  width:96px;height:72px;border-radius:10px;flex:0 0 auto;background:var(--brand-soft);
  color:var(--brand);display:grid;place-items:center;font-size:12px;font-weight:700;text-align:center;padding:4px;
}

/* ---------- news list ---------- */
.news-list{display:flex;flex-direction:column;gap:14px}
.news-row{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:18px 22px;display:grid;grid-template-columns:150px 1fr 40px;gap:22px;align-items:center;
  box-shadow:var(--shadow-1);transition:all .25s ease;
}
.news-row:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:var(--brand-light)}
.news-meta{display:flex;flex-direction:column;gap:8px;align-items:flex-start}
.news-date{font-size:13px;color:var(--faint);font-variant-numeric:tabular-nums}
.news-body h3{font-size:17px;font-weight:600;line-height:1.5;margin-bottom:6px}
.news-body h3 a{color:var(--text)}
.news-body h3 a:hover{color:var(--brand)}
.news-body p{font-size:14px;color:var(--muted);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-arrow{color:var(--brand);font-size:18px;text-align:right}
.thumb-inline{width:56px;height:56px;border-radius:10px;object-fit:cover;border:1px solid var(--border)}

/* ---------- empty state ---------- */
.empty-box{
  background:var(--surface);border:1px dashed var(--border);border-radius:var(--radius-card);
  padding:52px 24px;text-align:center;
}
.empty-box img{width:120px;margin:0 auto 18px;opacity:.85;border-radius:12px}
.empty-box h3{font-size:18px;margin-bottom:8px}
.empty-box p{color:var(--muted);font-size:14px;margin-bottom:20px}

/* ---------- recommend strip ---------- */
.rec-strip{display:flex;gap:18px;overflow-x:auto;padding:6px 4px 18px;scroll-snap-type:x mandatory;scrollbar-width:none}
.rec-strip::-webkit-scrollbar{display:none}
.rec-card{
  flex:0 0 280px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);scroll-snap-align:start;transition:all .25s ease;
}
.rec-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px)}
.rec-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-bottom:1px solid var(--border)}
.rec-card .rec-body{padding:16px 18px 20px}
.rec-card h3{font-size:16px;line-height:1.5;margin:10px 0 8px;color:var(--text)}
.rec-card p{font-size:13px;color:var(--muted);margin:0}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--brand-soft);border-radius:var(--radius-lg);padding:40px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band h2{font-size:24px;margin-bottom:8px}
.cta-band p{color:var(--muted);margin:0;font-size:15px;max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- faq ---------- */
.faq-wrap{max-width:880px}
.faq-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);margin-bottom:12px;overflow:hidden;transition:border-color .25s ease}
.faq-item.open{border-color:var(--brand-light);background:var(--brand-soft)}
.faq-q{
  width:100%;background:none;border:0;text-align:left;padding:18px 22px;font-size:16px;font-weight:600;
  color:var(--text);display:flex;align-items:center;justify-content:space-between;gap:16px;cursor:pointer;min-height:56px;
}
.faq-item.open .faq-q{color:var(--brand)}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 auto}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:currentColor;border-radius:2px;transition:transform .25s ease}
.faq-icon::before{top:7px;left:0;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px}
.faq-item.open .faq-icon::after{transform:scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;padding:0 22px}
.faq-item.open .faq-a{max-height:320px;padding-bottom:20px}
.faq-a p{color:var(--muted);font-size:15px;margin:0}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#C9D4E6;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
.footer-logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-logo .logo-mark{background:#fff;color:var(--ink)}
.footer-desc{font-size:14px;color:#9FB0C9;margin-bottom:18px;max-width:320px}
.footer-kw{display:flex;flex-wrap:wrap;gap:8px}
.footer-kw span{font-size:12px;padding:4px 10px;border-radius:999px;background:rgba(255,255,255,.08);color:#C9D4E6}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
.footer-links li{margin-bottom:10px}
.footer-links a{color:#9FB0C9;font-size:14px}
.footer-links a:hover{color:#fff}
.footer-contact li{font-size:14px;color:#9FB0C9;margin-bottom:10px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8A99AD}
.footer-bottom a{color:#8A99AD}
.footer-bottom a:hover{color:#fff}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .channel-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:991.98px){
  .brand-search{display:none}
  .hero{padding:52px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media{order:2}
  .hero-float{left:12px;bottom:-18px;width:auto;max-width:260px}
  .section{padding:56px 0}
  .feat-grid{grid-template-columns:1fr}
  .cta-band{padding:32px 26px}
}
@media (max-width:767.98px){
  .brand-row{height:62px;gap:12px}
  .logo{font-size:17px}
  .link-plain{display:none}
  .channel-link{height:48px;padding:0 12px;font-size:14px}
  .section{padding:48px 0}
  .channel-grid{grid-template-columns:1fr}
  .news-row{grid-template-columns:1fr;gap:12px;padding:16px 18px}
  .news-meta{flex-direction:row;align-items:center;gap:10px}
  .news-arrow{display:none}
  .hero h1{font-size:30px}
  .cta-band{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn-brand,.cta-actions .btn-line{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:519.98px){
  .container,.wrap{padding-left:16px;padding-right:16px}
  .mini-card img,.placeholder{width:76px;height:60px}
  .hero-actions .btn-brand,.hero-actions .btn-line{flex:1 1 100%}
  .rec-card{flex:0 0 84%}
}

/* roulang page: article */
:root{
  --brand:#1F5FD8;
  --brand-dark:#1749AE;
  --brand-soft:#4C86EA;
  --brand-tint:#EEF4FF;
  --teal:#0FA39A;
  --teal-tint:#E6F6F4;
  --orange:#FF7A45;
  --bg:#F6F8FC;
  --panel:#FFFFFF;
  --line:#E3E9F2;
  --ink:#1B2432;
  --ink-2:#5A6B82;
  --ink-3:#8A99AD;
  --ok:#1F9D6B;
  --warn:#D97706;
  --danger:#D9483B;
  --r-card:14px;
  --r-band:20px;
  --r-btn:10px;
  --r-img:16px;
  --sh1:0 2px 8px rgba(27,36,50,.05);
  --sh2:0 8px 24px rgba(27,36,50,.08);
  --ease:.25s ease;
}
*{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",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:0;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--brand-dark)}
button,input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:3px solid rgba(31,95,216,.22);outline-offset:2px;border-radius:6px}
.container{max-width:1200px;padding-left:20px;padding-right:20px}
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- header ---------- */
.site-header{background:#fff;border-bottom:1px solid var(--line)}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px;padding:10px 0}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-size:19px;font-weight:700}
.logo:hover{color:var(--ink)}
.logo-mark{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:11px;background:var(--brand);color:#fff;font-size:14px;font-weight:700;letter-spacing:.5px}
.brand-tools{display:flex;align-items:center;gap:14px}
.brand-search{width:220px}
.brand-search .form-control{height:40px;border-radius:var(--r-btn);border:1px solid var(--line);background:#F9FBFE;font-size:14px;padding:0 14px}
.brand-search .form-control:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,95,216,.14);background:#fff}
.link-plain{color:var(--ink-2);font-size:14px}
.link-plain:hover{color:var(--brand)}
.btn-brand{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:var(--brand);color:#fff;border:1px solid var(--brand);border-radius:var(--r-btn);padding:11px 20px;font-size:15px;font-weight:600;line-height:1;transition:background var(--ease),transform var(--ease),box-shadow var(--ease)}
.btn-brand:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh1)}
.btn-brand.btn-sm{padding:10px 16px;font-size:14px}
.btn-outline-brand{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:#fff;color:var(--brand);border:1.5px solid var(--brand);border-radius:var(--r-btn);padding:10px 20px;font-size:15px;font-weight:600;line-height:1;transition:background var(--ease),transform var(--ease)}
.btn-outline-brand:hover{background:var(--brand-tint);color:var(--brand-dark);transform:translateY(-1px)}
.btn-ghost{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:15px;font-weight:600;background:none;border:0;padding:8px 0}
.btn-ghost:hover{color:var(--brand-dark);text-decoration:underline;text-underline-offset:3px}

.channel-bar{background:#fff;border-bottom:1px solid var(--line);transition:box-shadow var(--ease)}
.channel-bar.is-stuck{position:sticky;top:0;z-index:1030;box-shadow:var(--sh1)}
.channel-inner{display:flex;align-items:center;gap:6px;overflow-x:auto;scroll-snap-type:x proximity;padding:6px 0;scrollbar-width:none}
.channel-inner::-webkit-scrollbar{display:none}
.channel-link{flex:0 0 auto;scroll-snap-align:start;display:inline-flex;align-items:center;height:38px;padding:0 16px;border-radius:10px;color:var(--ink-2);font-size:15px;font-weight:500;position:relative;transition:background var(--ease),color var(--ease)}
.channel-link:hover{background:var(--brand-tint);color:var(--brand)}
.channel-link.active{color:var(--brand);font-weight:700;background:var(--brand-tint)}

/* ---------- breadcrumb ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line)}
.crumb-bar .container{padding-top:14px;padding-bottom:14px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;margin:0;padding:0;font-size:13px;color:var(--ink-3)}
.crumb li{display:inline-flex;align-items:center;gap:8px}
.crumb a{color:var(--ink-2)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:var(--ink-3)}
.crumb .current{color:var(--ink-2);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.crumb-channel{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--brand);font-weight:600}
.crumb-channel::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand)}

/* ---------- reading head ---------- */
.read-head{padding:44px 0 30px;background:#fff;border-bottom:1px solid var(--line)}
.read-head .inner{max-width:820px;margin:0 auto}
.kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--teal);font-weight:600;letter-spacing:.2px;margin-bottom:14px}
.kicker .dot{width:7px;height:7px;border-radius:50%;background:var(--teal)}
h1.read-title{font-size:clamp(28px,3.6vw,40px);line-height:1.3;font-weight:700;margin:0 0 18px;letter-spacing:0}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:14px;color:var(--ink-2)}
.badge-soft{display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;font-size:13px;font-weight:600;background:var(--brand-tint);color:var(--brand)}
.badge-teal{background:var(--teal-tint);color:#0B7C76}
.badge-line{background:#fff;border:1px solid var(--line);color:var(--ink-2)}
.meta-sep{color:var(--line)}
.cover-wrap{margin-top:26px}
.cover-wrap img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-img);border:1px solid var(--line);background:var(--brand-tint)}
.cover-cap{margin-top:10px;font-size:13px;color:var(--ink-3)}

/* ---------- article body ---------- */
.reading{padding:56px 0 8px}
.reading .col-main{min-width:0}
.article-body{max-width:760px;font-size:17px;line-height:1.9;color:var(--ink)}
.article-body p{margin:0 0 16px}
.article-body h2{font-size:22px;line-height:1.45;font-weight:700;margin:40px 0 16px;padding-left:12px;border-left:3px solid var(--brand)}
.article-body h3{font-size:18px;font-weight:600;margin:28px 0 12px}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px}
.article-body li{margin-bottom:8px}
.article-body blockquote{margin:22px 0;padding:16px 20px;background:var(--brand-tint);border-left:4px solid var(--brand);border-radius:0 var(--r-card) var(--r-card) 0;color:var(--ink-2)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-card);border:1px solid var(--line);margin:20px 0}
.article-body figure{margin:20px 0}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:8px}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left}
.article-body th{background:#F1F5FB;font-weight:600}
.article-body tbody tr:nth-child(even){background:#FAFCFF}
.article-body a{text-decoration:underline;text-decoration-style:dashed;text-underline-offset:3px}
.article-body a:hover{text-decoration-style:solid}
.article-body code{background:#F1F5FB;border:1px solid var(--line);border-radius:6px;padding:1px 6px;font-size:15px}

/* ---------- tag + actions ---------- */
.tag-group{display:flex;flex-wrap:wrap;gap:8px;margin:34px 0 0}
.tag{display:inline-flex;align-items:center;padding:5px 12px;border-radius:999px;font-size:13px;background:#fff;border:1px solid var(--line);color:var(--ink-2)}
.tag:hover{border-color:var(--brand);color:var(--brand)}
.article-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;padding-top:24px;border-top:1px solid var(--line)}
.share-panel{display:none;margin-top:14px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh2);padding:16px 18px}
.share-panel.open{display:block}
.share-panel ul{list-style:none;margin:0;padding:0;display:grid;gap:8px;font-size:14px;color:var(--ink-2)}
.share-panel .copy-line{display:flex;gap:10px;flex-wrap:wrap;margin-top:10px;font-size:14px;color:var(--ink-3);word-break:break-all}

/* ---------- sidebar ---------- */
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh1);padding:20px;position:sticky;top:96px}
.side-card h2{font-size:16px;font-weight:700;margin:0 0 14px}
.side-card .toc{list-style:none;margin:0;padding:0;font-size:14px;display:grid;gap:10px}
.side-card .toc a{color:var(--ink-2)}
.side-card .toc a:hover{color:var(--brand)}
.side-note{font-size:13px;color:var(--ink-3);margin:14px 0 0}

/* ---------- empty state ---------- */
.empty-box{background:#fff;border:1px solid var(--line);border-radius:var(--r-band);box-shadow:var(--sh1);padding:48px 28px;text-align:center;max-width:760px}
.empty-box .art{width:96px;height:96px;margin:0 auto 18px;border-radius:20px;background:var(--brand-tint);display:flex;align-items:center;justify-content:center;color:var(--brand);font-size:26px;font-weight:700}
.empty-box h2{font-size:20px;font-weight:700;margin:0 0 10px}
.empty-box p{color:var(--ink-2);margin:0 0 22px;font-size:15px}

/* ---------- sections ---------- */
.section{padding:72px 0}
.section.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:32px}
.section-head h2{font-size:clamp(22px,2.4vw,28px);font-weight:700;margin:0}
.section-head p{margin:8px 0 0;color:var(--ink-2);font-size:15px;max-width:620px}

/* ---------- related ---------- */
.rel-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh1);overflow:hidden;height:100%;transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease)}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-color:#D3DEF0}
.rel-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-bottom:1px solid var(--line)}
.rel-card .body{padding:18px 18px 20px;display:flex;flex-direction:column;flex:1}
.rel-card h3{font-size:17px;font-weight:600;line-height:1.5;margin:0 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-card p{font-size:14px;color:var(--ink-2);margin:0 0 16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-meta{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3);margin-top:auto}
.rel-card a.title-link{color:var(--ink)}
.rel-card a.title-link:hover{color:var(--brand)}

/* ---------- CTA band ---------- */
.cta-band{background:var(--brand-tint);border-radius:var(--r-band);padding:38px 36px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;border:1px solid #DCE7FB}
.cta-band h2{font-size:clamp(20px,2.2vw,26px);font-weight:700;margin:0 0 8px}
.cta-band p{margin:0;color:var(--ink-2);font-size:15px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh1);overflow:hidden}
.faq-item.open{border-color:#CFDDF5;background:#FBFDff}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;background:none;border:0;padding:18px 20px;font-size:16px;font-weight:600;text-align:left;color:var(--ink);cursor:pointer;transition:color var(--ease)}
.faq-q:hover{color:var(--brand)}
.faq-item.open .faq-q{color:var(--brand)}
.faq-icon{flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:16px;line-height:1;color:var(--brand);background:#fff}
.faq-a{display:none;padding:0 20px 20px;color:var(--ink-2);font-size:15px}
.faq-item.open .faq-a{display:block}

/* ---------- footer ---------- */
.site-footer{background:#12203A;color:#C7D3E6;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.footer-logo{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700;margin-bottom:14px}
.footer-logo .logo-mark{background:#fff;color:#12203A}
.footer-desc{font-size:14px;line-height:1.8;color:#9FB0CB;margin:0 0 16px;max-width:340px}
.footer-kw{display:flex;flex-wrap:wrap;gap:8px}
.footer-kw span{font-size:12px;padding:4px 10px;border-radius:999px;background:rgba(255,255,255,.08);color:#C7D3E6}
.site-footer h4{font-size:15px;color:#fff;font-weight:700;margin:0 0 16px}
.footer-links,.footer-contact{list-style:none;margin:0;padding:0;display:grid;gap:10px;font-size:14px;color:#9FB0CB}
.footer-links a{color:#9FB0CB}
.footer-links a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:13px;color:#8B9CBB}
.footer-bottom a{color:#8B9CBB}
.footer-bottom a:hover{color:#fff}

/* ---------- progress ---------- */
.read-progress{position:fixed;left:0;top:0;height:3px;width:0;background:var(--brand);z-index:2000;transition:width .1s linear}

@media (max-width:1199.98px){
  .side-card{position:static}
}
@media (max-width:991.98px){
  .brand-search{width:180px}
  .section{padding:56px 0}
  .read-head{padding:34px 0 24px}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px}
  .brand-row{flex-wrap:wrap;min-height:auto;padding:12px 0}
  .brand-tools{width:100%;justify-content:space-between;gap:10px}
  .brand-search{width:100%;order:-1;flex:1 1 100%}
  .read-title{font-size:28px}
  .reading{padding:36px 0 8px}
  .article-body{font-size:16.5px}
  .section{padding:48px 0}
  .cta-band{padding:26px 20px}
  .cta-actions{width:100%}
  .cta-actions .btn-brand,.cta-actions .btn-outline-brand{flex:1 1 100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .article-actions .btn-brand,.article-actions .btn-outline-brand{flex:1 1 100%}
}

/* roulang page: category1 */
:root{
  --primary:#1F5FD8;
  --primary-hover:#1749AE;
  --primary-light:#4C86EA;
  --primary-soft:#EEF4FF;
  --teal:#0FA39A;
  --teal-soft:#E6F6F4;
  --orange:#FF7A45;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --border:#E3E9F2;
  --text:#1B2432;
  --muted:#5A6B82;
  --weak:#8A99AD;
  --success:#1F9D6B;
  --warn:#D97706;
  --danger:#D9483B;
  --radius-card:14px;
  --radius-panel:20px;
  --radius-btn:10px;
  --radius-img:16px;
  --shadow-1:0 2px 8px rgba(27,36,50,.05);
  --shadow-2:0 8px 24px rgba(27,36,50,.08);
  --gap:8px;
  --container:1200px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.7;
  color:var(--text);
  background:var(--bg);
  letter-spacing:normal;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--primary);text-decoration:none}
a:hover{color:var(--primary-hover)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input{font-family:inherit}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(31,95,216,.22);border-radius:6px}
.container{max-width:var(--container);padding-left:20px;padding-right:20px;margin:0 auto;width:100%}
.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- header ---------- */
.site-header{background:#fff;position:relative;z-index:1040}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:68px;padding:10px 0;border-bottom:1px solid var(--border)}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-size:18px;font-weight:700}
.logo:hover{color:var(--text)}
.logo-mark{
  width:34px;height:34px;border-radius:10px;background:var(--primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;letter-spacing:.5px;
  flex:0 0 auto;
}
.brand-tools{display:flex;align-items:center;gap:14px}
.brand-search{width:230px}
.brand-search .form-control{
  height:40px;border-radius:var(--radius-btn);border:1px solid var(--border);background:#F8FAFE;
  font-size:14px;color:var(--text);padding:8px 12px;
}
.brand-search .form-control::placeholder{color:var(--weak)}
.brand-search .form-control:focus{border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px rgba(31,95,216,.14)}
.link-plain{font-size:14px;color:var(--muted)}
.link-plain:hover{color:var(--primary)}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  background:var(--primary);color:#fff;border:1px solid var(--primary);
  border-radius:var(--radius-btn);padding:10px 20px;font-size:15px;font-weight:600;
  transition:all .25s ease;cursor:pointer;
}
.btn-brand:hover{background:var(--primary-hover);border-color:var(--primary-hover);color:#fff;transform:translateY(-1px)}
.btn-brand.btn-sm{padding:8px 16px;font-size:14px}
.btn-ghost-brand{
  display:inline-flex;align-items:center;gap:6px;background:#fff;color:var(--primary);
  border:1.5px solid var(--primary);border-radius:var(--radius-btn);padding:10px 20px;font-size:15px;font-weight:600;
  transition:all .25s ease;
}
.btn-ghost-brand:hover{background:var(--primary-soft);color:var(--primary-hover);border-color:var(--primary-hover)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);border-bottom:1px dashed rgba(31,95,216,.5);padding-bottom:2px}
.link-arrow:hover{border-bottom-color:transparent;color:var(--primary-hover)}

/* ---------- channel nav ---------- */
.channel-bar{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:1030;transition:box-shadow .25s ease}
.channel-bar.is-stuck{box-shadow:var(--shadow-1)}
.channel-inner{display:flex;align-items:center;gap:6px;overflow-x:auto;scroll-snap-type:x mandatory;-ms-overflow-style:none;scrollbar-width:none;padding:6px 0}
.channel-inner::-webkit-scrollbar{display:none}
.channel-link{
  flex:0 0 auto;scroll-snap-align:start;
  display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:999px;
  color:var(--muted);font-size:15px;font-weight:500;position:relative;transition:all .2s ease;
}
.channel-link:hover{background:var(--primary-soft);color:var(--primary)}
.channel-link.active{color:var(--primary);font-weight:700;background:var(--primary-soft)}
.channel-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;border-radius:3px;background:var(--primary);
}

/* ---------- hero ---------- */
.page-hero{background:#fff;border-bottom:1px solid var(--border);padding:56px 0 60px}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;background:var(--teal-soft);color:var(--teal);font-size:13px;font-weight:600;padding:5px 12px;border-radius:999px;margin-bottom:16px}
h1{font-size:clamp(30px,4.2vw,46px);line-height:1.25;font-weight:700;color:var(--text)}
.hero-sub{margin-top:16px;font-size:17px;color:var(--muted);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-stats{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.stat-pill{background:#F8FAFE;border:1px solid var(--border);border-radius:999px;padding:6px 14px;font-size:13px;color:var(--muted)}
.stat-pill b{color:var(--primary);font-weight:700}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-panel);border:1px solid var(--border);box-shadow:var(--shadow-2)}
.hero-float{
  position:absolute;left:-14px;bottom:-16px;background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-2);padding:12px;display:flex;align-items:center;gap:12px;max-width:290px;
}
.hero-float img{width:56px;height:56px;aspect-ratio:1/1;border-radius:12px;object-fit:cover;box-shadow:none}
.hero-float span{font-size:13px;color:var(--muted);line-height:1.5;display:block}
.hero-float strong{display:block;font-size:14px;color:var(--text)}

/* ---------- sections ---------- */
.section{padding:72px 0}
.section-alt{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.section-head h2{font-size:clamp(22px,2.6vw,28px);line-height:1.3;font-weight:700}
.section-head p{color:var(--muted);font-size:15px;margin-top:8px;max-width:640px}

/* ---------- category1 layout: sticky aside + 2col cards ---------- */
.layout-split{display:grid;grid-template-columns:272px 1fr;gap:36px;align-items:start}
.aside-card{
  position:sticky;top:96px;background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:24px;
}
.aside-card h2{font-size:18px;font-weight:700;line-height:1.4}
.aside-card p{font-size:14px;color:var(--muted);margin-top:10px}
.aside-divider{height:1px;background:var(--border);margin:18px 0}
.aside-list li{position:relative;padding-left:18px;font-size:14px;color:var(--muted);margin-bottom:10px;line-height:1.6}
.aside-list li::before{content:"";position:absolute;left:0;top:8px;width:7px;height:7px;border-radius:3px;background:var(--primary-light)}
.aside-facts{display:flex;gap:10px;margin-top:16px;flex-wrap:wrap}
.fact{flex:1;min-width:88px;background:var(--primary-soft);border-radius:12px;padding:10px 12px}
.fact b{display:block;font-size:18px;color:var(--primary);line-height:1.3}
.fact span{font-size:12px;color:var(--muted)}
.aside-card .btn-ghost-brand{width:100%;justify-content:center;margin-top:18px}

.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.entry-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);box-shadow:var(--shadow-1);
  overflow:hidden;display:flex;flex-direction:column;transition:all .25s ease;
}
.entry-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:#CFDDF7}
.entry-card .thumb{position:relative;overflow:hidden}
.entry-card .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease}
.entry-card:hover .thumb img{transform:scale(1.03)}
.entry-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.entry-body h3{font-size:19px;line-height:1.45;font-weight:600}
.entry-body p{font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.entry-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--weak);margin-top:auto;padding-top:4px;flex-wrap:wrap}
.badge-soft{background:var(--primary-soft);color:var(--primary);border-radius:999px;padding:4px 10px;font-size:12px;font-weight:600}
.badge-teal{background:var(--teal-soft);color:var(--teal);border-radius:999px;padding:4px 10px;font-size:12px;font-weight:600}
.badge-line{border:1px solid var(--border);color:var(--muted);border-radius:999px;padding:4px 10px;font-size:12px}

/* ---------- recommend scroller ---------- */
.scroller{position:relative}
.scroller-track{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding:6px 4px 20px;-ms-overflow-style:none;scrollbar-width:none}
.scroller-track::-webkit-scrollbar{display:none}
.scroller-item{flex:0 0 282px;scroll-snap-align:start;background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);box-shadow:var(--shadow-1);overflow:hidden;transition:all .25s ease}
.scroller-item:hover{box-shadow:var(--shadow-2);transform:translateY(-2px)}
.scroller-item img{width:100%;aspect-ratio:16/9;object-fit:cover}
.scroller-item div{padding:16px}
.scroller-item h3{font-size:16px;font-weight:600;line-height:1.5}
.scroller-item p{font-size:13px;color:var(--muted);margin-top:8px}
.scroller-fade{position:absolute;top:0;bottom:20px;width:44px;pointer-events:none;z-index:2}
.scroller-fade.left{left:0;background:linear-gradient(90deg,#F6F8FC,rgba(246,248,252,0))}
.scroller-fade.right{right:0;background:linear-gradient(270deg,#F6F8FC,rgba(246,248,252,0))}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--primary-soft);border-radius:var(--radius-panel);padding:36px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band h2{font-size:22px;font-weight:700}
.cta-band p{font-size:14px;color:var(--muted);margin-top:8px;max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative}
.btn-fav{display:inline-flex;align-items:center;gap:8px;background:#fff;color:var(--text);border:1px solid var(--border);border-radius:var(--radius-btn);padding:11px 20px;font-size:15px;font-weight:600;transition:all .25s ease}
.btn-fav:hover{border-color:var(--orange);color:var(--orange);transform:translateY(-1px)}
.share-panel{
  position:absolute;top:calc(100% + 10px);right:0;width:230px;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius-card);box-shadow:var(--shadow-2);padding:14px;display:none;z-index:20;
}
.share-panel.open{display:block}
.share-panel h4{font-size:14px;font-weight:700;margin-bottom:10px}
.share-panel a{display:block;font-size:14px;color:var(--muted);padding:8px 10px;border-radius:8px}
.share-panel a:hover{background:var(--primary-soft);color:var(--primary)}

/* ---------- FAQ ---------- */
.accordion-item{border:1px solid var(--border);border-radius:var(--radius-card)!important;background:#fff;margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow-1)}
.accordion-button{
  background:#fff;color:var(--text);font-size:16px;font-weight:600;padding:18px 20px;line-height:1.6;
  box-shadow:none!important;border-radius:var(--radius-card)!important;
}
.accordion-button:not(.collapsed){background:var(--primary-soft);color:var(--primary)}
.accordion-button::after{
  background-image:none;content:"+";font-size:20px;font-weight:500;color:var(--weak);
  width:auto;height:auto;transform:none;display:flex;align-items:center;justify-content:center;
}
.accordion-button:not(.collapsed)::after{content:"−";color:var(--primary);transform:none}
.accordion-body{font-size:15px;color:var(--muted);padding:0 20px 20px;line-height:1.8}

/* ---------- pre-footer strip ---------- */
.strip{background:#fff;border-top:1px solid var(--border);padding:28px 0}
.strip-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.strip-inner p{font-size:15px;color:var(--muted)}

/* ---------- footer ---------- */
.site-footer{background:#12203A;color:#C6D2E6;padding:56px 0 24px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.footer-logo{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:14px}
.footer-desc{font-size:14px;line-height:1.8;color:#9FB0CA;max-width:340px}
.footer-kw{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.footer-kw span{font-size:12px;color:#9FB0CA;border:1px solid rgba(198,210,230,.28);border-radius:999px;padding:4px 10px}
.site-footer h4{font-size:15px;color:#fff;font-weight:700;margin-bottom:14px}
.footer-links li,.footer-contact li{margin-bottom:10px;font-size:14px;color:#9FB0CA}
.footer-links a{color:#C6D2E6}
.footer-links a:hover{color:#fff}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(198,210,230,.16);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8A99AD;
}
.footer-bottom a{color:#C6D2E6}
.footer-bottom a:hover{color:#fff}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .layout-split{grid-template-columns:236px 1fr;gap:26px}
}
@media (max-width:991.98px){
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-media img{aspect-ratio:16/9}
  .hero-float{left:12px;bottom:-14px}
  .layout-split{grid-template-columns:1fr}
  .aside-card{position:static;top:auto}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .section{padding:56px 0}
}
@media (max-width:767.98px){
  .brand-row{flex-wrap:wrap;min-height:auto;padding:12px 0}
  .brand-tools{width:100%;gap:10px}
  .brand-search{flex:1;width:auto}
  .card-grid{grid-template-columns:1fr}
  .cta-band{padding:28px 22px}
  .cta-actions{width:100%}
  .cta-actions .btn-brand,.cta-actions .btn-ghost-brand,.cta-actions .btn-fav{justify-content:center;flex:1 1 auto}
  .section{padding:48px 0}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .scroller-item{flex:0 0 240px}
}
@media (max-width:519.98px){
  .container{padding-left:16px;padding-right:16px}
  .hero-actions .btn-brand,.hero-actions .btn-ghost-brand{width:100%;justify-content:center}
  .hero-float{position:static;margin-top:14px;max-width:none}
  .cta-actions .btn-brand,.cta-actions .btn-ghost-brand,.cta-actions .btn-fav{flex:1 1 100%}
}

/* roulang page: category2 */
:root{
  --brand:#1F5FD8;
  --brand-dark:#1749AE;
  --brand-light:#4C86EA;
  --brand-tint:#EEF4FF;
  --teal:#0FA39A;
  --teal-tint:#E6F6F4;
  --orange:#FF7A45;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --line:#E3E9F2;
  --ink:#1B2432;
  --ink-2:#5A6B82;
  --ink-3:#8A99AD;
  --ok:#1F9D6B;
  --warn:#D97706;
  --danger:#D9483B;
  --r-card:14px;
  --r-panel:20px;
  --r-btn:10px;
  --sh1:0 2px 8px rgba(27,36,50,.05);
  --sh2:0 8px 24px rgba(27,36,50,.08);
}
*{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",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:0;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-dark)}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(31,95,216,.35);outline-offset:2px;border-radius:6px}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--ink)}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}

.container{max-width:1200px;padding-left:20px;padding-right:20px}
@media (max-width:575.98px){.container{padding-left:16px;padding-right:16px}}

/* ---------- 通用按钮 ---------- */
.btn-brand,.btn-ghost-brand,.btn-line,.btn-soft{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-size:15px;font-weight:600;
  padding:12px 22px;border:1.5px solid transparent;cursor:pointer;
  transition:background-color .25s ease,color .25s ease,border-color .25s ease,transform .25s ease,box-shadow .25s ease;
  white-space:nowrap;text-align:center;
}
.btn-brand{background:var(--brand);color:#fff;border-color:var(--brand);box-shadow:var(--sh1)}
.btn-brand:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh2)}
.btn-line{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-line:hover{background:var(--brand-tint);color:var(--brand-dark);border-color:var(--brand-dark)}
.btn-soft{background:var(--brand-tint);color:var(--brand);border-color:transparent}
.btn-soft:hover{background:#DFEAFE;color:var(--brand-dark)}
.btn-ghost-brand{background:transparent;color:var(--brand);border-color:transparent;padding:8px 4px;border-radius:6px}
.btn-ghost-brand:hover{color:var(--brand-dark);text-decoration:underline;text-underline-offset:3px}
.btn-brand.btn-sm,.btn-line.btn-sm,.btn-soft.btn-sm{padding:8px 16px;font-size:14px}

/* ---------- 顶栏 ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s ease}
.site-header.is-scrolled{box-shadow:var(--sh1)}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:68px;padding:10px 0}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:var(--ink)}
.logo:hover{color:var(--ink)}
.logo-mark{
  width:38px;height:38px;border-radius:11px;background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;letter-spacing:.5px;flex:0 0 auto;
}
.brand-tools{display:flex;align-items:center;gap:14px}
.brand-search{margin:0}
.brand-search .form-control{
  width:220px;height:44px;border-radius:var(--r-btn);border:1px solid var(--line);
  background:var(--bg);font-size:14px;color:var(--ink);padding:0 14px;
}
.brand-search .form-control::placeholder{color:var(--ink-3)}
.brand-search .form-control:focus{
  background:#fff;border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,95,216,.18);
}
.link-plain{color:var(--ink-2);font-size:14px;font-weight:500}
.link-plain:hover{color:var(--brand)}
@media (max-width:991.98px){.brand-search{display:none}}
@media (max-width:575.98px){.brand-tools .link-plain{display:none}}

/* ---------- 频道行 ---------- */
.channel-bar{background:#fff;border-top:1px solid var(--line)}
.channel-inner{
  display:flex;align-items:center;gap:6px;overflow-x:auto;
  scroll-snap-type:x proximity;-ms-overflow-style:none;scrollbar-width:none;
}
.channel-inner::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;display:inline-flex;align-items:center;height:40px;
  padding:0 14px;border-radius:8px;font-size:15px;font-weight:500;
  color:var(--ink-2);white-space:nowrap;scroll-snap-align:start;
  transition:background-color .2s ease,color .2s ease;
}
.channel-link:hover{background:var(--brand-tint);color:var(--brand)}
.channel-link.active{color:var(--brand);font-weight:600;background:var(--brand-tint)}
.channel-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-1px;height:3px;
  background:var(--brand);border-radius:3px 3px 0 0;
}

/* ---------- 色带封面 Hero ---------- */
.band-hero{
  position:relative;overflow:hidden;background:#E7EFFE;
  padding:64px 0 60px;border-bottom:1px solid var(--line);
}
.band-hero::before{
  content:"";position:absolute;width:420px;height:420px;border-radius:50%;
  background:#D7E4FC;right:-120px;top:-160px;
}
.band-hero::after{
  content:"";position:absolute;width:220px;height:220px;border-radius:50%;
  background:#FFFFFF;right:140px;bottom:-140px;opacity:.75;
}
.band-ring{
  position:absolute;width:160px;height:160px;border-radius:50%;
  border:14px solid #C9DBFA;left:-60px;bottom:-70px;
}
.band-hero .container{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--ink-2);margin-bottom:18px}
.crumb a{color:var(--ink-2)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:var(--ink-3)}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;background:#fff;color:var(--brand);
  font-size:13px;font-weight:600;padding:6px 14px;border-radius:999px;
  box-shadow:var(--sh1);margin-bottom:18px;
}
.hero-eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--teal)}
.band-hero h1{
  font-size:clamp(30px,4.2vw,46px);line-height:1.25;font-weight:700;
  margin-bottom:18px;max-width:840px;
}
.hero-lead{font-size:17px;color:var(--ink-2);max-width:760px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:28px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.tag-pill{
  display:inline-flex;align-items:center;gap:6px;background:#fff;color:var(--ink-2);
  border:1px solid var(--line);border-radius:999px;font-size:13px;padding:6px 14px;
}
.tag-pill strong{color:var(--brand);font-weight:700}
.hero-figure{
  background:#fff;border-radius:var(--r-panel);padding:14px;box-shadow:var(--sh2);
  border:1px solid #fff;
}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:14px}
.hero-figure figcaption{font-size:13px;color:var(--ink-2);padding-top:12px}

/* ---------- 板块 ---------- */
.section{padding:76px 0}
.section.tight{padding:56px 0}
.section-head{margin-bottom:36px;max-width:760px}
.section-head .kicker{
  display:inline-block;font-size:13px;font-weight:700;color:var(--teal);
  letter-spacing:1.5px;margin-bottom:10px;text-transform:uppercase;
}
.section-head h2{font-size:27px;margin-bottom:12px}
.section-head p{color:var(--ink-2);font-size:15.5px}
@media (max-width:767.98px){
  .section{padding:48px 0}
  .section-head h2{font-size:23px}
}

/* ---------- 目录锚点条 ---------- */
.toc-bar{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-panel);
  padding:10px;box-shadow:var(--sh1);
}
.toc-bar ul{display:flex;flex-wrap:wrap;gap:6px}
.toc-bar a{
  display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:10px;
  font-size:14px;font-weight:500;color:var(--ink-2);
}
.toc-bar a:hover{background:var(--brand-tint);color:var(--brand)}
.toc-bar a .num{
  width:22px;height:22px;border-radius:6px;background:var(--brand-tint);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;
}

/* ---------- 频道卡（合集目录） ---------- */
.cat-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh1);height:100%;
  transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.cat-card:hover{box-shadow:var(--sh2);transform:translateY(-2px);border-color:var(--brand-light)}
.cat-card .stamp{
  width:40px;height:40px;border-radius:11px;background:var(--teal-tint);color:var(--teal);
  display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;margin-bottom:14px;
}
.cat-card h3{font-size:19px;margin-bottom:8px;color:var(--ink)}
.cat-card:hover h3{color:var(--brand)}
.cat-card p{font-size:14px;color:var(--ink-2);margin-bottom:14px}
.cat-card .cat-foot{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3)}
.cat-card .arrow{color:var(--brand);font-weight:700;transition:transform .25s ease;display:inline-block}
.cat-card:hover .arrow{transform:translateX(4px)}

/* ---------- 错落两列大卡 ---------- */
.masonry-two{position:relative}
.masonry-col{display:flex;flex-direction:column;gap:28px}
.masonry-col.offset{margin-top:56px}
.mcard{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh1);
  transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.mcard:hover{box-shadow:var(--sh2);transform:translateY(-2px);border-color:var(--brand-light)}
.mcard .thumb{position:relative;overflow:hidden}
.mcard .thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease}
.mcard:hover .thumb img{transform:scale(1.03)}
.mcard .badge-floating{
  position:absolute;left:14px;top:14px;background:#fff;color:var(--brand);
  font-size:12px;font-weight:700;padding:5px 12px;border-radius:999px;box-shadow:var(--sh1);
}
.mcard .body{padding:24px}
.mcard h3{font-size:20px;margin-bottom:10px}
.mcard h3 a{color:var(--ink)}
.mcard h3 a:hover{color:var(--brand)}
.mcard .excerpt{font-size:14.5px;color:var(--ink-2);margin-bottom:16px}
.mcard .meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--ink-3);border-top:1px solid var(--line);padding-top:14px}
.mcard .meta .badge-cat{
  background:var(--brand-tint);color:var(--brand);border-radius:999px;padding:3px 10px;font-weight:600;
}
.mcard .meta .badge-teal{background:var(--teal-tint);color:var(--teal);border-radius:999px;padding:3px 10px;font-weight:600}
.mcard .link-more{color:var(--brand);font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:6px}
.mcard .link-more:hover{color:var(--brand-dark)}
@media (max-width:991.98px){.masonry-col.offset{margin-top:0}}
@media (max-width:767.98px){.masonry-col{gap:20px}}

/* ---------- 流程步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 20px;box-shadow:var(--sh1);position:relative;
  transition:box-shadow .25s ease,transform .25s ease;
}
.step:hover{box-shadow:var(--sh2);transform:translateY(-2px)}
.step .step-num{
  width:34px;height:34px;border-radius:10px;background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;margin-bottom:14px;
}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14px;color:var(--ink-2)}
@media (max-width:991.98px){.steps{grid-template-columns:repeat(2,1fr)}}
@media (max-width:575.98px){.steps{grid-template-columns:1fr}}

/* ---------- 相关推荐横滑 ---------- */
.rail-wrap{position:relative}
.rail-wrap::before,.rail-wrap::after{
  content:"";position:absolute;top:0;bottom:0;width:56px;z-index:2;pointer-events:none;
}
.rail-wrap::before{left:0;background:linear-gradient(90deg,var(--bg),rgba(246,248,252,0))}
.rail-wrap::after{right:0;background:linear-gradient(270deg,var(--bg),rgba(246,248,252,0))}
.rail{
  display:flex;gap:20px;overflow-x:auto;padding:6px 4px 18px;
  scroll-snap-type:x mandatory;-ms-overflow-style:none;scrollbar-width:none;
}
.rail::-webkit-scrollbar{display:none}
.rail-card{
  flex:0 0 280px;scroll-snap-align:start;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh1);
  transition:box-shadow .25s ease,transform .25s ease;
}
.rail-card:hover{box-shadow:var(--sh2);transform:translateY(-2px)}
.rail-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.rail-card .rc-body{padding:18px}
.rail-card h3{font-size:16.5px;margin-bottom:8px}
.rail-card h3 a{color:var(--ink)}
.rail-card h3 a:hover{color:var(--brand)}
.rail-card p{font-size:13.5px;color:var(--ink-2);margin-bottom:10px}
.rail-card .rc-meta{font-size:12.5px;color:var(--ink-3)}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--brand-tint);border-radius:var(--r-panel);padding:44px 40px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
}
.cta-band h2{font-size:25px;margin-bottom:10px}
.cta-band p{color:var(--ink-2);font-size:15px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative}
.share-panel{
  position:absolute;right:0;top:calc(100% + 10px);width:280px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh2);
  padding:16px;display:none;z-index:20;
}
.share-panel.open{display:block}
.share-panel h4{font-size:14px;margin-bottom:10px}
.share-panel .sp-row{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13.5px;padding:8px 0;border-bottom:1px dashed var(--line)}
.share-panel .sp-row:last-child{border-bottom:0}
.share-panel .sp-row a{font-weight:600}
.share-panel .sp-tip{font-size:12.5px;color:var(--ink-3);margin-top:8px}
@media (max-width:767.98px){.cta-band{padding:30px 22px}.cta-actions{width:100%}.cta-actions .btn-brand,.cta-actions .btn-line{flex:1 1 100%}}

/* ---------- FAQ ---------- */
.faq-acc .accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  margin-bottom:12px;overflow:hidden;
}
.faq-acc .accordion-button{
  background:#fff;color:var(--ink);font-weight:600;font-size:16.5px;
  padding:18px 22px;border:0;border-radius:0!important;box-shadow:none;line-height:1.5;
}
.faq-acc .accordion-button:not(.collapsed){background:var(--brand-tint);color:var(--brand)}
.faq-acc .accordion-button:focus{box-shadow:inset 0 0 0 3px rgba(31,95,216,.2);border:0}
.faq-acc .accordion-button::after{
  content:"+";background-image:none;width:auto;height:auto;flex:0 0 auto;
  font-size:22px;font-weight:400;color:var(--brand);line-height:1;
  margin-left:auto;transform:none;transition:transform .25s ease;
}
.faq-acc .accordion-button:not(.collapsed)::after{content:"−";transform:none}
.faq-acc .accordion-body{padding:4px 22px 22px;font-size:15px;color:var(--ink-2);background:#fff}

/* ---------- 页脚 ---------- */
.site-footer{background:#12203A;color:#C6D2E6;padding:64px 0 0;margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.footer-logo{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700;margin-bottom:14px}
.footer-desc{font-size:14px;color:#9FB0CC;margin-bottom:16px}
.footer-kw{display:flex;flex-wrap:wrap;gap:8px}
.footer-kw span{
  font-size:12.5px;color:#B9C8E0;background:rgba(255,255,255,.07);
  border-radius:999px;padding:4px 12px;
}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
.footer-links li,.footer-contact li{font-size:14px;color:#9FB0CC;margin-bottom:10px}
.footer-links a{color:#9FB0CC}
.footer-links a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:#8DA0BE;
}
.footer-bottom a{color:#8DA0BE}
.footer-bottom a:hover{color:#fff}
@media (max-width:991.98px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:575.98px){.footer-grid{grid-template-columns:1fr;gap:26px}.footer-bottom{flex-direction:column;align-items:flex-start}}

.visually-hidden{
  position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;
}

/* roulang page: category3 */
:root{
  --brand:#1F5FD8;
  --brand-dark:#1749AE;
  --brand-light:#4C86EA;
  --brand-tint:#EEF4FF;
  --teal:#0FA39A;
  --teal-tint:#E6F6F4;
  --orange:#FF7A45;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --line:#E3E9F2;
  --text:#1B2432;
  --text-2:#5A6B82;
  --text-3:#8A99AD;
  --r-card:14px;
  --r-lg:20px;
  --r-btn:10px;
  --shadow-1:0 2px 8px rgba(27,36,50,.05);
  --shadow-2:0 8px 24px rgba(27,36,50,.08);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;}
a:hover{color:var(--brand-dark);}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:normal;color:var(--text);}
h1{font-size:clamp(30px,4.2vw,46px);line-height:1.25;}
h2{font-size:clamp(24px,2.4vw,28px);line-height:1.3;}
h3{font-size:20px;line-height:1.4;font-weight:600;}
h4{font-size:16px;line-height:1.4;font-weight:600;}
button,input{font-family:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible,.accordion-button:focus-visible{
  outline:none;
  box-shadow:0 0 0 3px rgba(31,95,216,.22);
  border-radius:8px;
}
.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}
.container{max-width:1200px;padding-left:20px;padding-right:20px;margin:0 auto;}
.section{padding:80px 0;}
.section-tight{padding:56px 0;}
.section-head{margin-bottom:40px;max-width:760px;}
.section-head .eyebrow{display:inline-block;font-size:13px;font-weight:600;color:var(--brand);background:var(--brand-tint);border-radius:999px;padding:4px 12px;margin-bottom:14px;}
.section-head p{margin-top:12px;color:var(--text-2);font-size:15px;}

/* ---------- header ---------- */
.site-header{position:relative;background:#fff;z-index:1030;}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:24px;height:70px;border-bottom:1px solid var(--line);}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:var(--text);}
.logo:hover{color:var(--brand);}
.logo-mark{
  width:34px;height:34px;border-radius:9px;background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;letter-spacing:.5px;
  flex:0 0 auto;
}
.brand-tools{display:flex;align-items:center;gap:16px;}
.brand-search{width:240px;}
.brand-search .form-control{
  height:42px;border-radius:var(--r-btn);border:1px solid var(--line);background:var(--bg);
  font-size:14px;color:var(--text);padding:0 14px;
}
.brand-search .form-control::placeholder{color:var(--text-3);}
.brand-search .form-control:focus{
  background:#fff;border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,95,216,.14);
}
.link-plain{font-size:14px;color:var(--text-2);}
.link-plain:hover{color:var(--brand);}
.btn-brand,.btn-outline-brand,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-size:15px;font-weight:600;line-height:1;
  padding:13px 22px;border:1px solid transparent;cursor:pointer;
  transition:background-color .25s ease,color .25s ease,border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.btn-brand{background:var(--brand);border-color:var(--brand);color:#fff;}
.btn-brand:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-1);}
.btn-outline-brand{background:#fff;border-color:var(--brand);color:var(--brand);border-width:1.5px;}
.btn-outline-brand:hover{background:var(--brand-tint);color:var(--brand-dark);border-color:var(--brand-dark);transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--brand);padding:10px 0;border:0;font-weight:600;}
.btn-ghost::after{content:"→";transition:transform .25s ease;}
.btn-ghost:hover::after{transform:translateX(4px);}
.btn-brand.btn-sm{padding:9px 16px;font-size:14px;border-radius:9px;}

.channel-bar{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s ease;}
.channel-bar.is-scrolled{box-shadow:var(--shadow-1);}
.channel-inner{display:flex;align-items:center;gap:4px;height:56px;overflow-x:auto;scroll-snap-type:x proximity;-ms-overflow-style:none;scrollbar-width:none;}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{
  flex:0 0 auto;scroll-snap-align:start;
  display:inline-flex;align-items:center;height:40px;padding:0 15px;border-radius:9px;
  font-size:15px;color:var(--text-2);border-bottom:3px solid transparent;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.channel-link:hover{background:var(--brand-tint);color:var(--brand);}
.channel-link.active{color:var(--brand);font-weight:600;border-bottom-color:var(--brand);}

/* ---------- breadcrumb ---------- */
.crumb{margin-bottom:22px;}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);}
.crumb li{display:inline-flex;align-items:center;gap:8px;}
.crumb li+li::before{content:"/";color:var(--line);}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--brand);}
.crumb [aria-current="page"]{color:var(--text-3);}

/* ---------- hero ---------- */
.page-hero{background:#fff;border-bottom:1px solid var(--line);padding:56px 0 72px;}
.page-hero h1{margin:14px 0 16px;}
.eyebrow-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand);
  background:var(--brand-tint);border-radius:999px;padding:5px 14px;
}
.eyebrow-tag i{width:7px;height:7px;border-radius:50%;background:var(--brand);display:inline-block;}
.hero-lead{font-size:17px;color:var(--text-2);max-width:560px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.stat-row{display:flex;flex-wrap:wrap;gap:14px;}
.stat-row li{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--r-card);
  padding:14px 20px;min-width:132px;
}
.stat-row strong{display:block;font-size:24px;line-height:1.2;color:var(--brand);font-weight:700;}
.stat-row span{font-size:13px;color:var(--text-2);}
.hero-figure{margin:0;position:relative;}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-lg);border:1px solid var(--line);box-shadow:var(--shadow-2);}
.hero-figure figcaption{margin-top:12px;font-size:13px;color:var(--text-3);}

/* ---------- scope panel ---------- */
.scope-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);padding:40px;display:grid;grid-template-columns:repeat(3,1fr);gap:0;
}
.scope-item{padding:6px 28px;border-left:1px solid var(--line);}
.scope-item:first-child{border-left:0;padding-left:6px;}
.scope-item:last-child{padding-right:6px;}
.scope-num{
  display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;
  background:var(--teal-tint);color:var(--teal);font-weight:700;font-size:14px;margin-bottom:16px;
}
.scope-item:nth-child(1) .scope-num{background:var(--brand-tint);color:var(--brand);}
.scope-item h3{font-size:18px;margin-bottom:10px;}
.scope-item p{font-size:14px;color:var(--text-2);margin:0;}

/* ---------- timeline ---------- */
.timeline-section{background:var(--bg);}
.filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:36px;}
.filter-chip{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--text-2);
  background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 18px;
  transition:all .2s ease;
}
.filter-chip:hover{border-color:var(--brand-light);color:var(--brand);}
.filter-chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600;}
.timeline{position:relative;}
.tl-item{
  display:grid;grid-template-columns:96px 40px minmax(0,1fr);
  margin-bottom:32px;
}
.tl-item:last-child{margin-bottom:0;}
.tl-date{align-self:start;text-align:right;padding-right:6px;padding-top:8px;}
.tl-day{display:block;font-size:17px;font-weight:700;color:var(--text);line-height:1.3;}
.tl-year{display:block;font-size:12px;color:var(--text-3);letter-spacing:.4px;}
.tl-dot{position:relative;}
.tl-dot::before{
  content:"";position:absolute;left:50%;top:14px;bottom:-32px;width:2px;
  background:var(--line);transform:translateX(-50%);
}
.tl-item:last-child .tl-dot::before{bottom:0;background:linear-gradient(180deg,var(--line),rgba(227,233,242,0));}
.tl-dot::after{
  content:"";position:absolute;left:50%;top:12px;width:12px;height:12px;border-radius:50%;
  background:#fff;border:2px solid var(--brand);transform:translateX(-50%);
}
.tl-item.is-teal .tl-dot::after{border-color:var(--teal);}
.tl-card{
  align-self:start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);padding:24px;
  display:grid;grid-template-columns:172px minmax(0,1fr);gap:24px;
  transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.tl-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:#D5E0F2;}
.tl-card.no-thumb{grid-template-columns:minmax(0,1fr);}
.tl-thumb{margin:0;}
.tl-thumb img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:12px;border:1px solid var(--line);}
.tl-body .meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:12px;}
.badge-soft{
  display:inline-flex;align-items:center;font-size:13px;font-weight:600;
  background:var(--brand-tint);color:var(--brand);border-radius:999px;padding:4px 12px;
}
.badge-soft.teal{background:var(--teal-tint);color:var(--teal);}
.badge-soft.plain{background:var(--bg);color:var(--text-2);font-weight:500;}
.meta-text{font-size:13px;color:var(--text-3);}
.tl-body h3{font-size:19px;margin-bottom:10px;}
.tl-body p{font-size:14.5px;color:var(--text-2);margin-bottom:14px;}
.tl-link{font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}
.tl-link::after{content:"→";transition:transform .25s ease;}
.tl-link:hover::after{transform:translateX(4px);}

/* ---------- process ---------- */
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.process-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 24px;box-shadow:var(--shadow-1);position:relative;
  transition:box-shadow .25s ease,transform .25s ease;
}
.process-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.process-step{
  display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:11px;
  background:var(--brand-tint);color:var(--brand);font-weight:700;font-size:15px;margin-bottom:18px;
}
.process-card:nth-child(2) .process-step{background:var(--teal-tint);color:var(--teal);}
.process-card h3{font-size:17px;margin-bottom:10px;}
.process-card p{font-size:14px;color:var(--text-2);margin:0;}

/* ---------- recommend ---------- */
.reco-section{
  background:linear-gradient(rgba(246,248,252,.94),rgba(246,248,252,.94)),url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.reco-wrap{position:relative;}
.reco-wrap::before,.reco-wrap::after{
  content:"";position:absolute;top:0;bottom:16px;width:56px;pointer-events:none;z-index:2;
}
.reco-wrap::before{left:-4px;background:linear-gradient(90deg,rgba(246,248,252,.96),rgba(246,248,252,0));}
.reco-wrap::after{right:-4px;background:linear-gradient(270deg,rgba(246,248,252,.96),rgba(246,248,252,0));}
.reco-track{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 4px 20px;-ms-overflow-style:none;scrollbar-width:none;
}
.reco-track::-webkit-scrollbar{display:none;}
.reco-card{
  flex:0 0 288px;scroll-snap-align:start;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--shadow-1);overflow:hidden;
  display:flex;flex-direction:column;
  transition:box-shadow .25s ease,transform .25s ease;
}
.reco-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.reco-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-bottom:1px solid var(--line);}
.reco-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.reco-body h3{font-size:16.5px;}
.reco-body p{font-size:13.5px;color:var(--text-2);margin:0;flex:1;}
.reco-foot{font-size:13px;color:var(--brand);font-weight:600;}

/* ---------- faq ---------- */
.faq-section{background:#fff;}
.accordion-item{border:1px solid var(--line);border-radius:var(--r-card)!important;margin-bottom:12px;overflow:hidden;background:#fff;}
.accordion-button{
  background:#fff;font-size:16px;font-weight:600;color:var(--text);
  padding:18px 22px;min-height:56px;box-shadow:none!important;border-radius:0!important;
}
.accordion-button:not(.collapsed){background:var(--brand-tint);color:var(--brand);}
.accordion-button::after{
  background-image:none!important;
  content:"+";font-size:20px;font-weight:600;color:var(--brand);
  width:auto;height:auto;line-height:1;transform:none;transition:transform .25s ease;
}
.accordion-button:not(.collapsed)::after{content:"−";transform:none;}
.accordion-body{padding:4px 22px 22px;font-size:15px;color:var(--text-2);background:#fff;}
.accordion-button:not(.collapsed)+.accordion-collapse .accordion-body{background:var(--brand-tint);color:var(--text-2);}

/* ---------- cta ---------- */
.cta-band{
  background:var(--brand-tint);border-radius:var(--r-lg);padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  border:1px solid #DCE7FB;
}
.cta-band h2{font-size:26px;margin-bottom:10px;}
.cta-band p{color:var(--text-2);font-size:15px;margin:0;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;}
.btn-save{background:#fff;border:1.5px solid var(--brand);color:var(--brand);}
.btn-save:hover{background:var(--brand);color:#fff;}
.btn-save.is-on{background:var(--orange);border-color:var(--orange);color:#fff;}
.share-panel{
  position:absolute;top:calc(100% + 12px);right:0;width:260px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-2);
  padding:16px 18px;display:none;z-index:5;
}
.share-panel.is-open{display:block;}
.share-panel h4{font-size:14px;margin-bottom:10px;}
.share-panel a{display:block;font-size:14px;color:var(--text-2);padding:7px 0;border-bottom:1px dashed var(--line);}
.share-panel a:last-child{border-bottom:0;}
.share-panel a:hover{color:var(--brand);}

/* ---------- footer ---------- */
.site-footer{background:#F6F8FC;border-top:1px solid var(--line);padding:64px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--text);margin-bottom:16px;}
.footer-desc{font-size:14px;color:var(--text-2);max-width:330px;line-height:1.8;}
.footer-kw{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.footer-kw span{font-size:12px;color:var(--text-3);background:#fff;border:1px solid var(--line);border-radius:999px;padding:3px 11px;}
.site-footer h4{font-size:15px;margin-bottom:18px;}
.footer-links li,.footer-contact li{margin-bottom:11px;font-size:14px;color:var(--text-2);}
.footer-links a{color:var(--text-2);}
.footer-links a:hover{color:var(--brand);}
.footer-bottom{
  border-top:1px solid var(--line);margin-top:44px;padding-top:22px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--brand);}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
}
@media (max-width:991.98px){
  .section{padding:64px 0;}
  .page-hero{padding:44px 0 56px;}
  .hero-figure{margin-top:8px;}
  .scope-panel{grid-template-columns:1fr;padding:28px;}
  .scope-item{border-left:0;border-top:1px solid var(--line);padding:24px 0 0;margin-top:24px;}
  .scope-item:first-child{border-top:0;padding-top:0;margin-top:0;}
  .process-grid{grid-template-columns:repeat(2,1fr);}
  .reco-wrap::before,.reco-wrap::after{display:none;}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px;}
  .section{padding:48px 0;}
  .brand-row{height:auto;padding:14px 0;flex-wrap:wrap;gap:14px;}
  .brand-search{width:100%;}
  .brand-tools{width:100%;gap:12px;flex-wrap:wrap;}
  .brand-tools .brand-search{order:3;}
  .channel-inner{height:52px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn-brand,.hero-actions .btn-outline-brand{flex:1 1 46%;padding:13px 16px;}
  .stat-row{gap:10px;}
  .stat-row li{flex:1 1 40%;min-width:0;padding:12px 16px;}
  .tl-item{grid-template-columns:26px minmax(0,1fr);grid-template-areas:"dot date" "dot card";margin-bottom:26px;}
  .tl-dot{grid-area:dot;}
  .tl-date{grid-area:date;text-align:left;padding:0 0 10px;display:flex;align-items:baseline;gap:8px;}
  .tl-day{font-size:15px;display:inline;}
  .tl-year{font-size:12px;display:inline;}
  .tl-card{grid-area:card;grid-template-columns:minmax(0,1fr);gap:16px;padding:20px;}
  .tl-thumb{order:-1;}
  .tl-thumb img{aspect-ratio:16/9;}
  .process-grid{grid-template-columns:1fr;}
  .cta-band{padding:30px 24px;flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn-brand,.cta-actions .btn-outline-brand,.cta-actions .btn-save{flex:1 1 100%;}
  .share-panel{right:auto;left:0;width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:519.98px){
  h1{font-size:28px;}
  .stat-row li{flex:1 1 100%;}
  .reco-card{flex:0 0 82%;}
}

/* roulang page: category4 */
:root{
  --brand:#1F5FD8;
  --brand-dark:#1749AE;
  --brand-light:#4C86EA;
  --brand-soft:#EEF4FF;
  --teal:#0FA39A;
  --teal-soft:#E6F6F4;
  --orange:#FF7A45;
  --bg:#F6F8FC;
  --surface:#FFFFFF;
  --border:#E3E9F2;
  --ink:#1B2432;
  --muted:#5A6B82;
  --weak:#8A99AD;
  --radius-card:14px;
  --radius-panel:20px;
  --radius-btn:10px;
  --radius-img:16px;
  --shadow-1:0 2px 8px rgba(27,36,50,.05);
  --shadow-2:0 8px 24px rgba(27,36,50,.08);
  --section-y:84px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.7;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-dark);}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:0;color:var(--ink);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(31,95,216,.22);border-radius:8px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}

/* ---------- 头部 ---------- */
.site-header{background:var(--surface);border-bottom:1px solid var(--border);position:relative;z-index:60;}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:68px;padding:8px 0;}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:var(--ink);}
.logo:hover{color:var(--brand);}
.logo-mark{
  width:34px;height:34px;border-radius:9px;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-size:13px;font-weight:700;letter-spacing:.5px;flex:0 0 auto;
}
.brand-tools{display:flex;align-items:center;gap:16px;}
.brand-search{width:236px;}
.brand-search .form-control{
  height:42px;border-radius:var(--radius-btn);border:1px solid var(--border);
  background:var(--bg);font-size:14px;color:var(--ink);padding:0 14px;
}
.brand-search .form-control::placeholder{color:var(--weak);}
.brand-search .form-control:focus{
  background:#fff;border-color:var(--brand-light);
  box-shadow:0 0 0 3px rgba(31,95,216,.14);
}
.link-plain{color:var(--muted);font-size:15px;}
.link-plain:hover{color:var(--brand);}

.btn-brand{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand);color:#fff;border:1px solid var(--brand);
  border-radius:var(--radius-btn);padding:12px 22px;font-weight:600;font-size:15px;
  transition:background .25s ease,transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.btn-brand:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-brand.btn-sm{padding:9px 18px;font-size:14px;}
.btn-outline{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;color:var(--brand);border:1.5px solid var(--brand);
  border-radius:var(--radius-btn);padding:11px 20px;font-weight:600;font-size:15px;
  transition:background .25s ease,transform .25s ease;
}
.btn-outline:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-1px);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand);
  font-weight:600;font-size:15px;padding:4px 0;border:0;background:none;
}
.btn-ghost:hover{color:var(--brand-dark);}
.btn-ghost i{transition:transform .25s ease;}
.btn-ghost:hover i{transform:translateX(3px);}

.channel-bar{position:sticky;top:0;background:#fff;border-bottom:1px solid var(--border);z-index:55;transition:box-shadow .25s ease;}
.channel-bar.is-stuck{box-shadow:var(--shadow-1);}
.channel-inner{
  display:flex;gap:4px;overflow-x:auto;padding:8px 0 14px;
  scroll-snap-type:x proximity;scrollbar-width:none;-ms-overflow-style:none;
}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;flex:0 0 auto;scroll-snap-align:start;
  padding:8px 14px;border-radius:var(--radius-btn);
  color:var(--muted);font-size:15px;white-space:nowrap;transition:background .2s ease,color .2s ease;
}
.channel-link:hover{background:var(--brand-soft);color:var(--brand);}
.channel-link.active{color:var(--brand);font-weight:600;}
.channel-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-8px;height:3px;
  background:var(--brand);border-radius:3px;
}

/* ---------- 通用板块 ---------- */
.section{padding:var(--section-y) 0;}
.section-head{margin-bottom:36px;}
.section-head h2{font-size:27px;line-height:1.3;}
.section-head .section-sub{margin-top:10px;color:var(--muted);font-size:15px;max-width:720px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--teal-soft);color:#0B7C75;font-size:13px;font-weight:600;
  padding:5px 12px;border-radius:999px;
}
.eyebrow i{font-size:12px;}

/* ---------- Hero ---------- */
.hero{padding:64px 0 72px;background:#fff;border-bottom:1px solid var(--border);}
.hero h1{font-size:clamp(30px,4.2vw,44px);line-height:1.25;}
.hero .hero-sub{margin-top:16px;font-size:18px;color:var(--brand);font-weight:600;}
.hero .hero-text{margin-top:16px;color:var(--muted);font-size:16px;max-width:560px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px;}
.stat-pill{
  background:var(--bg);border:1px solid var(--border);border-radius:12px;
  padding:12px 18px;min-width:132px;
}
.stat-pill strong{display:block;font-size:20px;color:var(--brand);line-height:1.3;}
.stat-pill span{font-size:13px;color:var(--muted);}
.hero-figure{margin:0;position:relative;}
.hero-figure img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--radius-panel);border:1px solid var(--border);box-shadow:var(--shadow-1);
}
.hero-note{
  position:absolute;left:20px;bottom:20px;background:#fff;border:1px solid var(--border);
  border-radius:12px;padding:12px 16px;box-shadow:var(--shadow-2);display:flex;align-items:center;gap:12px;
}
.hero-note img{width:52px;height:52px;border-radius:10px;object-fit:cover;aspect-ratio:1/1;box-shadow:none;border:0;}
.hero-note b{display:block;font-size:14px;}
.hero-note small{color:var(--weak);font-size:12px;}

/* ---------- 锚点目录 ---------- */
.anchor-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.anchor-card{
  display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius-card);padding:18px;box-shadow:var(--shadow-1);
  transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;color:var(--ink);
}
.anchor-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:#C9DBF8;color:var(--ink);}
.anchor-num{
  flex:0 0 auto;width:38px;height:38px;border-radius:10px;background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;font-weight:700;font-size:15px;
}
.anchor-card:nth-child(even) .anchor-num{background:var(--teal-soft);color:#0B7C75;}
.anchor-card h3{font-size:16px;font-weight:600;line-height:1.4;}
.anchor-card small{color:var(--weak);font-size:13px;}
.anchor-card .anchor-go{margin-left:auto;color:var(--weak);font-size:13px;}

/* ---------- 筛选标签 ---------- */
.filter-bar{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  padding:16px 18px;box-shadow:var(--shadow-1);margin-bottom:28px;
}
.filter-label{font-size:13px;color:var(--weak);margin-bottom:10px;display:block;}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  border:1px solid var(--border);background:#fff;color:var(--muted);
  border-radius:999px;padding:8px 16px;font-size:14px;transition:all .2s ease;
}
.chip:hover{border-color:var(--brand-light);color:var(--brand);}
.chip.active{background:var(--brand);border-color:var(--brand);color:#fff;box-shadow:0 2px 8px rgba(31,95,216,.25);}

/* ---------- 问题卡片 ---------- */
.q-card{
  height:100%;display:flex;flex-direction:column;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);
  transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.q-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:#C9DBF8;}
.q-thumb{position:relative;overflow:hidden;}
.q-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease;}
.q-card:hover .q-thumb img{transform:scale(1.03);}
.q-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1 1 auto;}
.tagline{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px;}
.badge-soft{
  display:inline-block;font-size:13px;font-weight:600;padding:4px 10px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);line-height:1.5;
}
.badge-soft.teal{background:var(--teal-soft);color:#0B7C75;}
.badge-soft.grey{background:var(--bg);color:var(--muted);}
.q-card h3{font-size:17px;font-weight:600;line-height:1.5;}
.q-card p{margin-top:10px;color:var(--muted);font-size:14.5px;line-height:1.75;flex:1 1 auto;}
.meta-row{
  display:flex;flex-wrap:wrap;gap:14px;margin-top:16px;padding-top:14px;
  border-top:1px solid var(--border);color:var(--weak);font-size:13px;
}
.meta-row i{margin-right:5px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:920px;}
.accordion-item{
  border:1px solid var(--border);border-radius:var(--radius-card) !important;
  background:#fff;margin-bottom:14px;overflow:hidden;box-shadow:var(--shadow-1);
}
.accordion-item:last-child{margin-bottom:0;}
.accordion-button{
  background:#fff;color:var(--ink);font-weight:600;font-size:16px;
  padding:20px 22px;border-radius:var(--radius-card) !important;line-height:1.5;
}
.accordion-button:not(.collapsed){background:var(--brand-soft);color:var(--brand);box-shadow:none;}
.accordion-button:focus{box-shadow:0 0 0 3px rgba(31,95,216,.16);border-color:transparent;}
.accordion-button::after{display:none;}
.acc-sign{
  margin-left:auto;flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  display:grid;place-items:center;background:var(--bg);color:var(--brand);
  border:1px solid var(--border);transition:transform .25s ease,background .25s ease;
}
.accordion-button:not(.collapsed) .acc-sign{background:var(--brand);color:#fff;border-color:var(--brand);transform:rotate(45deg);}
.accordion-body{padding:2px 22px 22px;color:var(--muted);font-size:15px;line-height:1.85;}

/* ---------- 横滑推荐 ---------- */
.scroll-row{
  display:flex;gap:20px;overflow-x:auto;padding:4px 4px 14px;
  scroll-snap-type:x mandatory;scrollbar-width:none;-ms-overflow-style:none;
}
.scroll-row::-webkit-scrollbar{display:none;}
.scroll-row > *{flex:0 0 286px;scroll-snap-align:start;}
.mini-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);height:100%;
  transition:box-shadow .25s ease,transform .25s ease;
}
.mini-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.mini-card img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.mini-card .mini-body{padding:16px 18px 18px;}
.mini-card h3{font-size:16px;font-weight:600;line-height:1.5;}
.mini-card p{margin-top:8px;font-size:14px;color:var(--muted);}
.mini-card small{display:block;margin-top:12px;color:var(--weak);font-size:13px;}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--brand-soft);border-radius:var(--radius-panel);
  padding:40px;display:flex;align-items:center;justify-content:space-between;
  gap:28px;flex-wrap:wrap;
}
.cta-band h2{font-size:24px;line-height:1.35;}
.cta-band p{margin-top:10px;color:var(--muted);font-size:15px;max-width:560px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.share-panel{
  display:none;background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-2);padding:16px 18px;margin-top:18px;width:100%;max-width:420px;
}
.share-panel.open{display:block;}
.share-panel .share-title{font-size:14px;font-weight:600;margin-bottom:10px;}
.share-links{display:flex;flex-wrap:wrap;gap:10px;}
.share-links a{
  display:inline-flex;align-items:center;gap:7px;font-size:14px;color:var(--muted);
  border:1px solid var(--border);border-radius:999px;padding:7px 14px;background:#fff;
}
.share-links a:hover{border-color:var(--brand-light);color:var(--brand);background:var(--brand-soft);}

/* ---------- 转化条 ---------- */
.convert-strip{
  background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border);
  padding:36px 0;
}
.convert-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.convert-inner strong{font-size:20px;}
.convert-inner span{display:block;color:var(--muted);font-size:14.5px;margin-top:6px;}

/* ---------- 面包屑 ---------- */
.crumb{padding:20px 0 0;}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--weak);}
.crumb li{display:flex;align-items:center;gap:8px;}
.crumb li::after{content:"/";color:#C3CEE0;}
.crumb li:last-child::after{content:"";}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--brand);}

/* ---------- 页脚 ---------- */
.site-footer{background:#12203A;color:#C9D4E6;padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:36px;}
.footer-logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;}
.footer-logo .logo-mark{background:#fff;color:#12203A;}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.8;color:#A9B7CE;max-width:320px;}
.footer-kw{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.footer-kw span{
  font-size:12.5px;border:1px solid rgba(255,255,255,.18);border-radius:999px;
  padding:4px 10px;color:#B9C6DA;
}
.site-footer h4{font-size:15px;color:#fff;font-weight:600;margin-bottom:16px;}
.footer-links li{margin-bottom:10px;}
.footer-links a,.footer-contact li{color:#A9B7CE;font-size:14px;}
.footer-links a:hover{color:#fff;}
.footer-contact li{margin-bottom:10px;line-height:1.7;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:#8E9DB5;
}
.footer-bottom a{color:#A9B7CE;}
.footer-bottom a:hover{color:#fff;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .anchor-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991.98px){
  :root{--section-y:64px;}
  .brand-search{display:none;}
  .hero{padding:48px 0 56px;}
  .hero .hero-text{max-width:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767.98px){
  :root{--section-y:48px;}
  .container{padding:0 16px;}
  .hero h1{font-size:30px;}
  .hero .hero-sub{font-size:16px;}
  .hero-actions .btn-brand,.hero-actions .btn-outline{width:100%;justify-content:center;}
  .anchor-grid{grid-template-columns:1fr;}
  .cta-band{padding:26px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-brand,.cta-actions .btn-outline{width:100%;justify-content:center;}
  .convert-inner .btn-brand{width:100%;justify-content:center;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:10px;}
  .scroll-row > *{flex:0 0 250px;}
}
@media (max-width:575.98px){
  .brand-row{gap:12px;}
  .brand-tools .link-plain{display:none;}
  .q-body{padding:16px;}
  .accordion-button{padding:16px 18px;font-size:15px;}
  .accordion-body{padding:0 18px 18px;}
}