/* roulang page: index */
:root{
  --bg:#071119;
  --bg-2:#0B1A26;
  --card:#102434;
  --glass:rgba(18,50,70,.55);
  --glass-line:rgba(255,255,255,.10);
  --line:#1E3A4D;
  --brand:#0C1D2A;
  --brand-2:#123246;
  --amber:#F0A93C;
  --amber-hi:#FFC061;
  --celadon:#2ED3B0;
  --text:#E6EDF3;
  --muted:#A7B8C6;
  --dim:#6E8494;
  --danger:#E4695E;
  --radius:18px;
  --radius-sm:14px;
  --radius-btn:12px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.85), inset 0 1px 0 rgba(255,255,255,.06);
  --shadow-glow:0 0 0 1px rgba(240,169,60,.45), 0 8px 28px -8px rgba(240,169,60,.55);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background-color:var(--bg);
  background-image:
    repeating-linear-gradient(0deg, rgba(255,255,255,.03) 0 1px, transparent 1px 48px),
    repeating-linear-gradient(90deg, rgba(255,255,255,.03) 0 1px, transparent 1px 48px),
    radial-gradient(900px 520px at 82% -6%, rgba(18,50,70,.85), transparent 70%),
    radial-gradient(760px 460px at 4% 8%, rgba(12,29,42,.9), transparent 72%);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease-out, border-color .18s ease-out, background-color .18s ease-out;}
a:hover{color:var(--amber-hi);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.02em;line-height:1.35;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:6px;}

.shell{max-width:1200px;margin:0 auto;padding:0 32px;}
.section-block{padding:96px 0;}
.section-block.tight{padding:72px 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.14em;color:var(--celadon);
  text-transform:none;margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--amber);display:inline-block;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(24px,3vw,34px);}
.section-head p{color:var(--muted);font-size:15px;max-width:560px;margin-top:10px;}
.link-more{color:var(--muted);font-size:14px;display:inline-flex;align-items:center;gap:8px;white-space:nowrap;}
.link-more i{transition:transform .18s ease-out;}
.link-more:hover{color:var(--amber-hi);}
.link-more:hover i{transform:translateX(3px);}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(7,17,25,.82);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:11px;position:relative;
  background:linear-gradient(145deg,var(--brand-2),var(--brand));
  border:1px solid rgba(240,169,60,.4);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:center;
}
.brand-mark::before{
  content:"";width:15px;height:17px;border:2px solid var(--amber);
  border-bottom:none;border-radius:3px 3px 0 0;
}
.brand-mark::after{
  content:"";position:absolute;bottom:11px;width:3px;height:8px;border-radius:2px;background:var(--amber);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:17px;font-weight:700;letter-spacing:.06em;}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.16em;}
.nav-chips{display:flex;align-items:center;gap:8px;margin-left:8px;flex:1 1 auto;overflow-x:auto;scrollbar-width:none;}
.nav-chips::-webkit-scrollbar{display:none;}
.chip-link{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:999px;font-size:14px;color:var(--muted);
  border:1px solid var(--line);background:transparent;white-space:nowrap;
  transition:all .18s ease-out;
}
.chip-link:hover{color:var(--text);border-color:rgba(240,169,60,.55);}
.chip-link.active{
  color:var(--text);
  background:var(--glass);
  border-color:rgba(255,255,255,.16);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.chip-link.active::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--amber);}
.header-actions{display:flex;align-items:center;gap:16px;flex:0 0 auto;}
.header-note{font-size:13px;color:var(--dim);}
.btn-amber{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:11px 22px;border-radius:var(--radius-btn);border:1px solid rgba(240,169,60,.7);
  background:linear-gradient(180deg,var(--amber-hi),var(--amber));
  color:#1A1004;font-weight:700;font-size:15px;letter-spacing:.02em;
  box-shadow:var(--shadow-glow);
  transition:transform .18s ease-out, box-shadow .18s ease-out, filter .18s ease-out;
}
.btn-amber:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(255,192,97,.6),0 12px 32px -8px rgba(240,169,60,.7);color:#1A1004;}
.btn-amber:active{transform:translateY(1px);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:11px 22px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;
  color:var(--text);border:1px solid var(--line);background:rgba(255,255,255,.03);
  transition:all .18s ease-out;
}
.btn-ghost:hover{border-color:rgba(240,169,60,.6);color:var(--amber-hi);background:rgba(240,169,60,.06);}
.btn-ghost:active{transform:translateY(1px);}
.burger{
  display:none;width:42px;height:42px;border-radius:11px;align-items:center;justify-content:center;
  border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--text);
}
.drawer-glass{background:rgba(9,21,31,.96);backdrop-filter:blur(18px);color:var(--text);border-left:1px solid var(--line);}
.drawer-glass .offcanvas-header{border-bottom:1px solid var(--line);}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 4px;border-bottom:1px solid rgba(30,58,77,.7);font-size:17px;color:var(--text);
}
.drawer-link:hover{color:var(--amber-hi);}
.btn-close{filter:invert(1) grayscale(1);opacity:.7;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:72px 0 88px;
  overflow:hidden;
  border-bottom:1px solid rgba(30,58,77,.6);
}
.hero::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,transparent,rgba(240,169,60,.55),transparent);
  opacity:.3;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:12px;letter-spacing:.08em;
  color:var(--celadon);border:1px solid rgba(46,211,176,.45);background:rgba(46,211,176,.07);
  margin-bottom:24px;
}
.hero h1{font-size:clamp(30px,4.2vw,46px);line-height:1.25;margin-bottom:20px;}
.hero h1 em{font-style:normal;color:var(--amber);}
.hero-sub{color:var(--muted);font-size:17px;max-width:560px;margin-bottom:26px;}
.hero-points{display:flex;flex-direction:column;gap:12px;margin-bottom:34px;}
.hero-points li{display:flex;align-items:center;gap:12px;font-size:15px;color:var(--text);}
.hero-points li::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--amber);flex:0 0 auto;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;}
.hero-visual{position:relative;border-radius:var(--radius);padding:10px;
  background:linear-gradient(150deg,rgba(255,255,255,.13),rgba(255,255,255,.02));
  box-shadow:var(--shadow-card);
}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-sm);}
.hero-visual::after{
  content:"";position:absolute;inset:10px;border-radius:var(--radius-sm);
  background:linear-gradient(180deg,rgba(7,17,25,0) 35%,rgba(7,17,25,.85) 100%);
  pointer-events:none;
}
.hero-stamp{
  position:absolute;top:22px;right:22px;z-index:2;
  padding:6px 14px;border-radius:999px;font-size:12px;letter-spacing:.1em;
  color:#1A1004;background:var(--amber);box-shadow:0 8px 22px -10px rgba(240,169,60,.9);
}
.hero-caption{
  position:absolute;left:26px;right:26px;bottom:26px;z-index:2;
  font-size:13px;color:var(--muted);
}

/* ---------- 编号目录 ---------- */
.toc-list{display:grid;grid-template-columns:1fr 1fr;gap:0 40px;}
.toc-item{
  display:flex;align-items:center;gap:18px;
  padding:18px 14px 18px 16px;border-bottom:1px solid rgba(30,58,77,.75);
  position:relative;transition:all .18s ease-out;
}
.toc-item::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:2px;
  background:var(--amber);opacity:0;transition:opacity .18s ease-out;
}
.toc-item:hover{background:rgba(18,50,70,.4);transform:translateX(4px);}
.toc-item:hover::before{opacity:1;}
.toc-num{font-size:13px;color:var(--dim);width:26px;flex:0 0 auto;letter-spacing:.08em;}
.toc-name{font-size:16px;font-weight:600;flex:1 1 auto;}
.toc-item i{color:var(--dim);font-size:12px;}
.toc-item:hover i{color:var(--amber);}

/* ---------- 精选条目 ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--radius);border:1px solid var(--line);
  background:var(--card);box-shadow:var(--shadow-card);
  transition:transform .18s ease-out,border-color .18s ease-out;
  height:100%;
}
.post-card:hover{transform:translateY(-2px);border-color:rgba(240,169,60,.45);}
.post-card .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--bg-2);}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out;}
.post-card:hover .thumb img{transform:scale(1.04);}
.post-card .body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto;}
.badge-cat{
  display:inline-flex;align-items:center;padding:3px 12px;border-radius:999px;
  font-size:12px;color:var(--celadon);border:1px solid rgba(46,211,176,.45);
  background:rgba(46,211,176,.07);width:max-content;
}
.post-card h3{font-size:18px;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card p{font-size:14px;color:var(--muted);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.post-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--dim);padding-top:12px;border-top:1px solid rgba(30,58,77,.7);}
.post-meta i{transition:transform .18s ease-out;}
.post-card:hover .post-meta i{transform:translateX(3px);color:var(--amber);}
.post-card.lead{grid-column:span 3;flex-direction:row;}
.post-card.lead .thumb{flex:0 0 52%;aspect-ratio:auto;}
.post-card.lead .body{padding:36px;gap:16px;justify-content:center;}
.post-card.lead h3{font-size:clamp(20px,2.4vw,27px);-webkit-line-clamp:2;}
.post-card.lead p{-webkit-line-clamp:3;font-size:15px;}

/* ---------- 检查清单 ---------- */
.check-panel{
  border-radius:var(--radius);border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(18,50,70,.65),rgba(11,26,38,.9));
  padding:36px;box-shadow:var(--shadow-card);
}
.check-row{display:flex;gap:16px;padding:18px 0;border-bottom:1px dashed rgba(30,58,77,.9);}
.check-row:last-child{border-bottom:none;padding-bottom:0;}
.check-row:first-child{padding-top:0;}
.check-ico{
  flex:0 0 auto;width:34px;height:34px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  color:var(--celadon);border:1px solid rgba(46,211,176,.4);background:rgba(46,211,176,.08);font-size:13px;
}
.check-row h3{font-size:16px;margin-bottom:4px;}
.check-row p{font-size:14px;color:var(--muted);}

/* ---------- CMS 行列表 ---------- */
.cms-timeline{border-top:1px solid var(--line);}
.cms-row{
  display:grid;grid-template-columns:180px 1fr 24px;align-items:center;gap:24px;
  padding:22px 16px;border-bottom:1px solid var(--line);
  transition:background .18s ease-out,transform .18s ease-out;
}
.cms-row:hover{background:rgba(18,50,70,.45);transform:translateY(-1px);}
.cms-row:hover .cms-title{color:var(--amber-hi);}
.cms-meta{display:flex;flex-direction:column;gap:8px;font-size:13px;color:var(--dim);}
.cms-title{font-size:17px;font-weight:600;transition:color .18s ease-out;}
.cms-excerpt{font-size:14px;color:var(--muted);margin-top:6px;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;}
.cms-arrow{color:var(--dim);font-size:13px;text-align:right;}
.cms-row:hover .cms-arrow{color:var(--amber);}
.cms-empty{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  border:1px dashed var(--line);border-radius:var(--radius);background:rgba(18,50,70,.25);
}
.cms-empty i{font-size:26px;color:var(--dim);}
.cms-empty strong{font-size:15px;font-weight:600;}
.cms-empty span{font-size:13px;color:var(--dim);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius-sm);
  background:var(--glass);backdrop-filter:blur(14px) saturate(120%);
  margin-bottom:12px;overflow:hidden;position:relative;
}
.faq-item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--amber);opacity:0;transition:opacity .18s ease-out;}
.faq-item:has(.accordion-button:not(.collapsed))::before{opacity:1;}
.faq-head{display:flex;align-items:center;gap:16px;width:100%;padding:18px 22px;background:transparent;border:none;text-align:left;color:var(--text);}
.faq-head:not(.collapsed){color:#fff;}
.faq-head::after{
  content:"\f105";font-family:"Font Awesome 6 Free";font-weight:900;
  margin-left:auto;font-size:14px;color:var(--dim);transition:transform .2s ease-out;
}
.faq-head:not(.collapsed)::after{transform:rotate(90deg);color:var(--amber);}
.faq-idx{font-size:13px;color:var(--amber);letter-spacing:.08em;flex:0 0 auto;}
.faq-q{font-size:16px;font-weight:600;}
.faq-body{padding:0 22px 22px 60px;font-size:15px;line-height:1.9;color:var(--muted);}

/* ---------- 收尾 CTA ---------- */
.share-band{
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  padding:32px 36px;border-radius:var(--radius);
  border:1px solid rgba(255,255,255,.12);
  background:linear-gradient(120deg,rgba(18,50,70,.7),rgba(11,26,38,.85));
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);
}
.share-band p{font-size:16px;font-weight:600;}
.share-actions{display:flex;gap:12px;flex-wrap:wrap;}
.toast-tip{
  position:fixed;left:50%;bottom:38px;transform:translate(-50%,16px);
  display:inline-flex;align-items:center;gap:10px;
  padding:11px 20px;border-radius:999px;font-size:14px;
  background:rgba(16,36,52,.95);border:1px solid rgba(46,211,176,.5);
  color:var(--text);box-shadow:0 16px 36px -18px rgba(0,0,0,.9);
  opacity:0;pointer-events:none;transition:opacity .2s ease-out,transform .2s ease-out;z-index:2000;
}
.toast-tip i{color:var(--celadon);}
.toast-tip.show{opacity:1;transform:translate(-50%,0);}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--line);background:rgba(9,21,31,.7);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;}
.footer-brand p{font-size:14px;color:var(--muted);margin-top:16px;max-width:260px;}
.footer-col h4{font-size:14px;color:var(--text);margin-bottom:16px;letter-spacing:.06em;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:var(--muted);}
.footer-col a:hover{color:var(--amber-hi);}
.footer-note{font-size:13px;color:var(--dim);line-height:1.9;}
.footer-bottom{
  margin-top:48px;padding:20px 0;border-top:1px solid rgba(30,58,77,.8);
  display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--dim);text-align:center;
}

@media (max-width:1199px){
  .feature-grid{grid-template-columns:repeat(2,1fr);}
  .post-card.lead{grid-column:span 2;}
  .post-card.lead .thumb{flex:0 0 46%;}
}
@media (max-width:991px){
  .shell{padding:0 24px;}
  .section-block{padding:72px 0;}
  .nav-chips{display:none;}
  .header-note{display:none;}
  .burger{display:inline-flex;}
  .header-inner{height:64px;}
  .hero{padding:56px 0 64px;}
  .hero-visual{margin-top:40px;}
  .toc-list{grid-template-columns:1fr;gap:0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cms-row{grid-template-columns:1fr 24px;gap:10px;padding:18px 8px;}
  .cms-meta{flex-direction:row;align-items:center;gap:12px;}
}
@media (max-width:767px){
  .shell{padding:0 20px;}
  .section-block{padding:56px 0;}
  .hero-sub{font-size:16px;}
  .feature-grid{grid-template-columns:1fr;}
  .post-card.lead{grid-column:span 1;flex-direction:column;}
  .post-card.lead .thumb{flex:none;aspect-ratio:16/10;}
  .post-card.lead .body{padding:24px;}
  .check-panel{padding:24px;}
  .share-band{padding:24px;}
  .faq-body{padding:0 20px 20px 20px;}
  .footer-grid{grid-template-columns:1fr;}
  .section-head{margin-bottom:28px;}
}
@media (max-width:479px){
  h1{font-size:26px;}
  .hero h1{font-size:26px;}
  .hero-cta .btn-amber,.hero-cta .btn-ghost{width:100%;}
  .share-actions{width:100%;}
  .share-actions .btn-amber,.share-actions .btn-ghost{flex:1 1 auto;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
  .post-card:hover,.toc-item:hover,.cms-row:hover,.btn-amber:hover{transform:none;}
  .post-card:hover .thumb img{transform:none;}
}

/* roulang page: article */
:root{
  --bg:#071119;
  --bg-2:#0B1A26;
  --card:#102434;
  --glass:rgba(18,50,70,.55);
  --line:#1E3A4D;
  --brand-1:#0C1D2A;
  --brand-2:#123246;
  --amber:#F0A93C;
  --amber-hover:#FFC061;
  --jade:#2ED3B0;
  --text:#E6EDF3;
  --muted:#A7B8C6;
  --dim:#6E8494;
  --danger:#E4695E;
  --radius:18px;
  --radius-sm:14px;
  --radius-btn:12px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.85), inset 0 1px 0 rgba(255,255,255,.06);
  --shadow-glow:0 0 0 1px rgba(240,169,60,.45), 0 8px 28px -8px rgba(240,169,60,.55);
  --gap-block:96px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    repeating-linear-gradient(0deg,rgba(255,255,255,.03) 0 1px,transparent 1px 48px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.03) 0 1px,transparent 1px 48px);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .18s ease-out,border-color .18s ease-out,opacity .18s ease-out;}
a:hover{color:var(--amber-hover);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.02em;line-height:1.35;}
p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:6px;}
.shell{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(7,17,25,.82);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  height:72px;
}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{
  position:relative;width:36px;height:36px;border-radius:10px;
  background:linear-gradient(150deg,var(--brand-2),var(--brand-1));
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.brand-mark::before{
  content:"";position:absolute;inset:9px 15px 9px 9px;
  border:1.5px solid rgba(240,169,60,.85);
  border-right:0;border-radius:3px 0 0 3px;
}
.brand-mark::after{
  content:"";position:absolute;top:11px;right:11px;width:3px;height:14px;
  border-radius:2px;background:var(--amber);
  box-shadow:0 0 10px rgba(240,169,60,.6);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:16px;font-weight:700;letter-spacing:.06em;color:var(--text);}
.brand-sub{font-size:11px;letter-spacing:.14em;color:var(--dim);}
.nav-chips{
  display:flex;align-items:center;gap:8px;
  flex:1 1 auto;min-width:0;
  overflow-x:auto;scrollbar-width:none;
  padding:4px 0;
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 14px,#000 calc(100% - 14px),transparent 100%);
  mask-image:linear-gradient(90deg,transparent 0,#000 14px,#000 calc(100% - 14px),transparent 100%);
}
.nav-chips::-webkit-scrollbar{display:none;}
.chip-link{
  position:relative;flex:0 0 auto;
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 15px;border-radius:999px;
  font-size:14px;color:var(--muted);
  border:1px solid transparent;background:transparent;
  white-space:nowrap;
  transition:all .18s ease-out;
}
.chip-link:hover{color:var(--text);border-color:var(--line);background:rgba(255,255,255,.04);}
.chip-link.active{
  color:var(--text);
  background:var(--glass);
  border-color:rgba(255,255,255,.14);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.chip-link.active::before{
  content:"";width:5px;height:5px;border-radius:50%;
  background:var(--amber);box-shadow:0 0 8px rgba(240,169,60,.9);
}
.header-actions{display:flex;align-items:center;gap:16px;flex:0 0 auto;}
.header-link{font-size:14px;color:var(--muted);white-space:nowrap;}
.header-link:hover{color:var(--amber-hover);}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  padding:0;cursor:pointer;align-items:center;justify-content:center;
  flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:16px;height:1.5px;background:var(--text);border-radius:2px;transition:.2s;}
.nav-drawer{
  display:none;position:fixed;inset:0;z-index:1045;
  background:rgba(7,17,25,.96);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  padding:88px 24px 32px;
  flex-direction:column;gap:6px;
}
.nav-drawer a{
  font-size:19px;padding:16px 8px;border-bottom:1px solid var(--line);color:var(--text);
}
.nav-drawer a.active{color:var(--amber);}
.nav-drawer .drawer-cta{
  margin-top:20px;border:0;border-radius:var(--radius-btn);
  text-align:center;font-size:16px;font-weight:700;
  background:var(--amber);color:#231603;
  box-shadow:var(--shadow-glow);
}
.nav-drawer-close{
  position:absolute;top:20px;right:20px;
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  background:rgba(255,255,255,.05);color:var(--text);font-size:18px;cursor:pointer;
}
body.nav-open .nav-drawer{display:flex;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,border-color .18s ease-out,color .18s ease-out;
}
.btn-primary{
  background:var(--amber);color:#231603;
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{background:var(--amber-hover);transform:translateY(-1px);color:#231603;}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(240,169,60,.45);}
.btn-ghost{
  background:rgba(255,255,255,.04);color:var(--text);
  border-color:var(--line);
}
.btn-ghost:hover{border-color:rgba(240,169,60,.65);color:var(--text);background:rgba(255,255,255,.06);}
.btn-link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--amber);font-size:15px;font-weight:600;background:none;border:0;padding:0;cursor:pointer;
}
.btn-link-arrow i{transition:transform .18s ease-out;}
.btn-link-arrow:hover i{transform:translateX(3px);}

/* ---------- 面包屑 ---------- */
.crumb-bar{
  padding:26px 0 0;
  position:relative;
}
.crumb-bar::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,rgba(240,169,60,.45),rgba(240,169,60,0) 60%);
  opacity:.65;
}
.breadcrumb-trail{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--dim);
}
.breadcrumb-trail a{color:var(--muted);}
.breadcrumb-trail a:hover{color:var(--amber-hover);}
.breadcrumb-trail .sep{color:#2c4459;}
.breadcrumb-trail .current{color:var(--dim);}

/* ---------- 文章主体 ---------- */
.article-wrap{padding:40px 0 var(--gap-block);}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:48px;}
.article-main{min-width:0;max-width:820px;}

.article-head{padding-bottom:28px;border-bottom:1px solid var(--line);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 13px;border-radius:999px;
  border:1px solid rgba(46,211,176,.45);
  color:var(--jade);font-size:12px;letter-spacing:.08em;
  margin-bottom:18px;
}
.article-title{
  font-size:clamp(26px,3.6vw,40px);
  line-height:1.28;
  letter-spacing:.02em;
  color:var(--text);
  margin-bottom:18px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  font-size:13.5px;color:var(--dim);
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:7px;}
.article-meta i{color:#4a6a82;font-size:12px;}
.meta-chip{
  display:inline-flex;align-items:center;
  padding:3px 11px;border-radius:999px;
  border:1px solid rgba(46,211,176,.4);
  color:var(--jade);font-size:12px;
  background:rgba(46,211,176,.07);
}

.cover-figure{margin:32px 0 0;}
.cover-figure img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:var(--radius);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.cover-figure figcaption{
  margin-top:12px;text-align:center;font-size:13px;color:var(--dim);
}

/* ---------- 正文排版 ---------- */
.article-body{
  margin-top:36px;
  font-size:17px;line-height:1.9;
  color:var(--text);
  max-width:760px;
}
.article-body > * + *{margin-top:1.15em;}
.article-body p{color:#D7E2EA;}
.article-body h2{
  font-size:clamp(20px,2.4vw,26px);
  margin:48px 0 16px;
  padding-left:14px;
  position:relative;
  line-height:1.45;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.35em;bottom:.35em;width:3px;
  border-radius:2px;background:var(--amber);
}
.article-body h3{
  font-size:19px;margin:34px 0 12px;color:#EEF5FA;
}
.article-body h4{font-size:17px;margin:26px 0 10px;color:var(--muted);}
.article-body ul,.article-body ol{
  padding-left:22px;line-height:1.8;
}
.article-body ul{list-style:none;padding-left:6px;}
.article-body ul > li{position:relative;padding-left:20px;margin:8px 0;}
.article-body ul > li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:6px;height:6px;border-radius:2px;background:var(--amber);
}
.article-body ol{list-style:decimal;}
.article-body ol > li{margin:8px 0;padding-left:4px;}
.article-body ol::marker,.article-body ol > li::marker{color:var(--amber);}
.article-body blockquote{
  margin:28px 0;padding:20px 24px;
  background:var(--glass);
  border-left:3px solid var(--amber);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  color:var(--muted);
}
.article-body blockquote p{margin:0;color:var(--muted);}
.article-body a{color:var(--amber);border-bottom:1px solid rgba(240,169,60,.35);}
.article-body a:hover{color:var(--amber-hover);border-color:var(--amber-hover);}
.article-body img{border-radius:var(--radius-sm);margin:24px auto;}
.article-body table{
  width:100%;border-collapse:collapse;margin:26px 0;
  font-size:15px;border:1px solid var(--line);
  border-radius:var(--radius-sm);overflow:hidden;
}
.article-body thead th{
  background:rgba(255,255,255,.05);color:var(--text);
  font-weight:600;text-align:left;
}
.article-body th,.article-body td{
  padding:12px 16px;border-bottom:1px solid var(--line);
  color:var(--muted);
}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.025);}
.article-body tbody tr:last-child td{border-bottom:0;}
.article-body code{
  background:rgba(255,255,255,.06);padding:2px 7px;border-radius:6px;
  font-size:.92em;color:var(--amber);
}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0;}

.article-empty{
  margin-top:40px;padding:56px 24px;text-align:center;
  border:1px solid var(--line);border-radius:var(--radius);
  background:rgba(16,36,52,.6);
}
.article-empty h2{font-size:22px;margin-bottom:18px;padding:0;}
.article-empty h2::before{display:none;}

/* ---------- 标签 ---------- */
.tag-row{
  display:flex;flex-wrap:wrap;gap:10px;
  margin-top:44px;padding-top:28px;border-top:1px solid var(--line);
}
.tag-chip{
  display:inline-flex;align-items:center;
  padding:6px 14px;border-radius:999px;
  font-size:13px;color:var(--muted);
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  transition:all .18s ease-out;
}
.tag-chip:hover{color:var(--amber-hover);border-color:rgba(240,169,60,.55);background:rgba(240,169,60,.07);}

/* ---------- 分享条 ---------- */
.share-bar{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
  margin-top:32px;padding:22px 26px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);
}
.share-bar p{font-size:14.5px;color:var(--muted);}
.share-actions{display:flex;gap:12px;flex-wrap:wrap;}
.copy-toast{
  position:fixed;left:50%;bottom:40px;transform:translate(-50%,16px);
  display:inline-flex;align-items:center;gap:9px;
  padding:11px 20px;border-radius:999px;
  background:rgba(16,36,52,.92);
  border:1px solid rgba(46,211,176,.5);
  color:var(--text);font-size:14px;
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:0 18px 40px -24px rgba(0,0,0,.9);
  opacity:0;pointer-events:none;
  transition:opacity .22s ease-out,transform .22s ease-out;
  z-index:1080;
}
.copy-toast i{color:var(--jade);}
.copy-toast.show{opacity:1;transform:translate(-50%,0);}

/* ---------- 上下篇 ---------- */
.postnav{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;margin-top:44px;
}
.postnav a{
  display:block;padding:22px 24px;border-radius:var(--radius);
  border:1px solid var(--line);
  background:rgba(16,36,52,.55);
  transition:all .18s ease-out;
}
.postnav a:hover{
  transform:translateY(-2px);
  border-color:rgba(240,169,60,.5);
  background:rgba(18,50,70,.65);
}
.postnav .pn-label{font-size:12.5px;color:var(--dim);letter-spacing:.08em;display:block;margin-bottom:8px;}
.postnav .pn-title{font-size:15.5px;color:var(--text);font-weight:600;line-height:1.6;}
.postnav .pn-next{text-align:right;}

/* ---------- 相关推荐 ---------- */
.related{padding:var(--gap-block) 0 0;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:32px;flex-wrap:wrap;
}
.section-head h2{font-size:clamp(22px,2.6vw,30px);}
.section-head .sub{font-size:14px;color:var(--dim);margin-top:8px;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rel-card{
  display:flex;flex-direction:column;gap:12px;
  padding:22px;border-radius:var(--radius);
  border:1px solid var(--line);
  background:rgba(16,36,52,.5);
  transition:all .18s ease-out;
}
.rel-card:hover{
  transform:translateY(-2px);
  border-color:rgba(240,169,60,.5);
  box-shadow:var(--shadow-card);
}
.rel-card .rel-tag{
  align-self:flex-start;padding:3px 11px;border-radius:999px;
  font-size:12px;color:var(--jade);
  border:1px solid rgba(46,211,176,.4);
  background:rgba(46,211,176,.07);
}
.rel-card h3{font-size:16px;line-height:1.55;color:var(--text);}
.rel-card p{font-size:13.5px;color:var(--dim);line-height:1.75;}
.rel-card .rel-go{margin-top:auto;font-size:13.5px;color:var(--amber);display:inline-flex;align-items:center;gap:6px;}
.rel-card:hover .rel-go i{transform:translateX(3px);}
.rel-card .rel-go i{transition:transform .18s ease-out;}

.back-entry{margin-top:40px;}
.back-entry a{font-size:14.5px;color:var(--muted);display:inline-flex;align-items:center;gap:8px;}
.back-entry a:hover{color:var(--amber-hover);}

/* ---------- 侧栏 ---------- */
.article-aside{display:none;}
.aside-card{
  padding:24px;border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);
}
.aside-card + .aside-card{margin-top:20px;}
.aside-card h3{font-size:15px;margin-bottom:14px;color:var(--text);}
.aside-card p{font-size:13.5px;line-height:1.8;color:var(--muted);}
.aside-list li + li{margin-top:12px;padding-top:12px;border-top:1px solid var(--line);}
.aside-list a{font-size:14px;color:var(--muted);display:flex;align-items:center;justify-content:space-between;gap:10px;}
.aside-list a:hover{color:var(--amber-hover);}
.aside-list i{font-size:11px;color:#3f5c72;}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:var(--bg-2);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:32px;
  padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:13.5px;color:var(--dim);line-height:1.8;max-width:280px;}
.footer-col h4{font-size:14px;color:var(--text);margin-bottom:16px;letter-spacing:.04em;}
.footer-col ul li + li{margin-top:10px;}
.footer-col ul a{font-size:13.5px;color:var(--muted);}
.footer-col ul a:hover{color:var(--amber-hover);}
.footer-note{font-size:13px;color:var(--dim);line-height:1.85;}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 24px;
  display:flex;flex-wrap:wrap;justify-content:center;gap:10px 24px;
  font-size:13px;color:var(--dim);text-align:center;
}

/* ---------- 响应式 ---------- */
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:56px;}
  .article-aside{display:block;}
  .article-aside .aside-sticky{position:sticky;top:96px;}
}
@media (max-width:1199px){
  :root{--gap-block:72px;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:991px){
  .header-actions .header-link{display:none;}
  .nav-chips{display:none;}
  .nav-toggle{display:flex;}
  .header-inner{height:64px;justify-content:space-between;}
  .header-actions{gap:10px;}
  .header-actions .btn{padding:9px 16px;font-size:14px;}
  .shell{padding:0 24px;}
  .postnav{grid-template-columns:1fr;}
  .postnav .pn-next{text-align:left;}
}
@media (max-width:767px){
  :root{--gap-block:56px;}
  body{font-size:15.5px;}
  .article-title{font-size:clamp(24px,6vw,30px);}
  .article-body{font-size:16px;}
  .article-body h2{margin-top:36px;}
  .related-grid{grid-template-columns:1fr;}
  .share-bar{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px;}
  .footer-bottom{justify-content:flex-start;text-align:left;}
}
@media (max-width:479px){
  .shell{padding:0 20px;}
  .header-actions .btn{display:none;}
  .brand-sub{display:none;}
  .article-meta{font-size:12.5px;}
  .share-actions{width:100%;}
  .share-actions .btn{flex:1 1 auto;width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
  html{scroll-behavior:auto;}
  .postnav a:hover,.rel-card:hover,.btn-primary:hover{transform:none;}
}

/* roulang page: category1 */
:root{
  --bg:#071119;
  --bg-2:#0B1A26;
  --card:#102434;
  --glass:rgba(18,50,70,.55);
  --line:#1E3A4D;
  --brand-1:#0C1D2A;
  --brand-2:#123246;
  --amber:#F0A93C;
  --amber-2:#FFC061;
  --celadon:#2ED3B0;
  --text:#E6EDF3;
  --muted:#A7B8C6;
  --faint:#6E8494;
  --danger:#E4695E;
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:12px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.85), inset 0 1px 0 rgba(255,255,255,.06);
  --shadow-glow:0 0 0 1px rgba(240,169,60,.45), 0 8px 28px -8px rgba(240,169,60,.55);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    repeating-linear-gradient(0deg,rgba(255,255,255,.028) 0 1px,transparent 1px 48px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.028) 0 1px,transparent 1px 48px);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none;transition:color .18s ease-out,border-color .18s ease-out,background-color .18s ease-out,transform .18s ease-out}
a:hover{color:var(--amber-2)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.02em;line-height:1.35}
p{margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:6px}

.shell{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media (max-width:991.98px){.shell{padding:0 24px}}
@media (max-width:575.98px){.shell{padding:0 20px}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(7,17,25,.82);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:24px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  position:relative;width:30px;height:30px;flex:0 0 30px;border-radius:9px;
  border:1.5px solid rgba(240,169,60,.55);
  background:linear-gradient(150deg,rgba(240,169,60,.16),rgba(46,211,176,.06));
}
.brand-mark::before{
  content:"";position:absolute;left:50%;top:7px;bottom:7px;width:2px;
  background:var(--amber);transform:translateX(-50%);border-radius:2px;
}
.brand-mark::after{
  content:"";position:absolute;inset:4px;border-radius:6px;
  border:1px dashed rgba(46,211,176,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:17px;font-weight:700;letter-spacing:.04em;color:var(--text)}
.brand-sub{font-size:11px;letter-spacing:.16em;color:var(--faint)}
.brand:hover .brand-name{color:var(--amber-2)}

.nav-chips{display:flex;align-items:center;gap:8px;margin:0 auto;flex-wrap:nowrap}
.chip-link{
  position:relative;display:inline-flex;align-items:center;gap:7px;
  padding:8px 16px;border-radius:999px;font-size:14px;color:var(--muted);
  border:1px solid var(--line);background:transparent;white-space:nowrap;
  transition:color .18s ease-out,border-color .18s ease-out,background-color .18s ease-out;
}
.chip-link:hover{color:var(--text);border-color:rgba(240,169,60,.45);background:rgba(240,169,60,.06)}
.chip-link.active{
  color:var(--text);border-color:rgba(240,169,60,.4);
  background:rgba(18,50,70,.7);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07);
}
.chip-link.active::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--amber);
  box-shadow:0 0 8px rgba(240,169,60,.8);
}
.header-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.02em;
  padding:13px 24px;border-radius:var(--radius-sm);border:1px solid transparent;
  cursor:pointer;transition:transform .18s ease-out,background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.btn-amber{
  background:var(--amber);color:#141F26;border-color:rgba(240,169,60,.9);
  box-shadow:var(--shadow-glow);
}
.btn-amber:hover{background:var(--amber-2);color:#141F26;transform:translateY(-1px)}
.btn-amber:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(240,169,60,.4)}
.btn-ghost{
  background:rgba(18,50,70,.45);color:var(--text);border-color:var(--line);
  -webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);
}
.btn-ghost:hover{border-color:rgba(240,169,60,.55);color:var(--amber-2);transform:translateY(-1px)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn .arrow{transition:transform .18s ease-out}
.btn:hover .arrow{transform:translateX(3px)}

/* ============ 面包屑与小 Hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:52px 0 56px;
  border-bottom:1px solid var(--line);
  background:
    radial-gradient(900px 320px at 85% -10%,rgba(46,211,176,.09),transparent 65%),
    linear-gradient(180deg,rgba(11,26,38,.9),rgba(7,17,25,.4));
}
.page-hero::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,transparent,rgba(240,169,60,.55),transparent);
  opacity:.6;
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--faint);margin-bottom:24px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--amber-2)}
.crumbs .sep{color:rgba(110,132,148,.7)}
.crumbs .current{color:var(--faint)}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;border-radius:999px;font-size:12px;letter-spacing:.1em;
  color:var(--celadon);border:1px solid rgba(46,211,176,.38);
  background:rgba(46,211,176,.07);margin-bottom:18px;
}
.hero-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--celadon);box-shadow:0 0 8px rgba(46,211,176,.8)}
.page-hero h1{
  font-size:clamp(28px,4vw,42px);line-height:1.28;max-width:820px;
  margin-bottom:18px;
}
.page-hero h1 em{font-style:normal;color:var(--amber-2)}
.page-hero .lede{max-width:660px;color:var(--muted);font-size:16px;line-height:1.9}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section-alt{background:linear-gradient(180deg,rgba(11,26,38,.75),rgba(7,17,25,0))}
@media (max-width:991.98px){.section{padding:64px 0}}
@media (max-width:575.98px){.section{padding:52px 0}}

.section-head{max-width:760px;margin-bottom:40px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.12em;color:var(--celadon);
  border:1px solid rgba(46,211,176,.32);border-radius:999px;
  padding:4px 13px;background:rgba(46,211,176,.06);margin-bottom:16px;
}
.section-head h2{font-size:clamp(23px,3vw,32px);margin-bottom:14px}
.section-sub{color:var(--muted);font-size:15px;line-height:1.9}

/* ============ 锚点 chip ============ */
.anchor-bar{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.anchor-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:999px;font-size:13.5px;color:var(--muted);
  border:1px solid var(--line);background:rgba(16,36,52,.6);
  transition:color .18s ease-out,border-color .18s ease-out,transform .18s ease-out;
}
.anchor-chip:hover{color:var(--amber-2);border-color:rgba(240,169,60,.5);transform:translateY(-1px)}
.anchor-chip .sq{width:6px;height:6px;background:var(--amber);border-radius:1px}

/* ============ 双列图文条目 ============ */
.entry-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
@media (max-width:991.98px){.entry-grid{grid-template-columns:1fr}}
.entry-card{
  display:grid;grid-template-columns:minmax(0,1fr) 156px;gap:20px;align-items:center;
  padding:22px;border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(18,50,70,.55),rgba(11,26,38,.72));
  box-shadow:var(--shadow-card);
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.entry-card:hover{
  transform:translateY(-2px);
  border-color:rgba(240,169,60,.42);
  box-shadow:var(--shadow-card),0 0 0 1px rgba(240,169,60,.16);
}
.entry-num{
  display:inline-block;font-size:13px;letter-spacing:.14em;color:var(--amber);
  margin-bottom:8px;font-variant-numeric:tabular-nums;
}
.entry-main h3{font-size:18px;margin-bottom:8px}
.entry-main p{font-size:14.5px;color:var(--muted);line-height:1.8}
.entry-thumb{
  border-radius:var(--radius-md);overflow:hidden;border:1px solid rgba(255,255,255,.08);
  aspect-ratio:4/3;background:var(--brand-1);
}
.entry-thumb img{width:100%;height:100%;object-fit:cover}
@media (max-width:575.98px){
  .entry-card{grid-template-columns:1fr;gap:16px;padding:18px}
  .entry-thumb{order:-1;aspect-ratio:16/9}
}

/* ============ 要点清单 ============ */
.checklist{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
@media (max-width:767.98px){.checklist{grid-template-columns:1fr}}
.check-item{
  display:flex;gap:14px;align-items:flex-start;
  padding:20px 22px;border-radius:var(--radius-md);
  border:1px solid var(--line);background:rgba(16,36,52,.62);
  transition:border-color .18s ease-out,background-color .18s ease-out,transform .18s ease-out;
}
.check-item:hover{border-color:rgba(46,211,176,.4);background:rgba(18,50,70,.7);transform:translateY(-2px)}
.check-icon{
  position:relative;width:22px;height:22px;flex:0 0 22px;margin-top:3px;
  border-radius:50%;border:1px solid rgba(46,211,176,.5);background:rgba(46,211,176,.12);
}
.check-icon::after{
  content:"";position:absolute;left:7px;top:4px;width:6px;height:10px;
  border-right:2px solid var(--celadon);border-bottom:2px solid var(--celadon);
  transform:rotate(40deg);
}
.check-item h3{font-size:16px;margin-bottom:6px}
.check-item p{font-size:14px;color:var(--muted);line-height:1.8}

/* ============ FAQ ============ */
.faq-acc .accordion-item{
  background:linear-gradient(160deg,rgba(18,50,70,.5),rgba(11,26,38,.72));
  border:1px solid var(--line);border-radius:var(--radius-md);
  margin-bottom:12px;overflow:hidden;box-shadow:none;
}
.faq-acc .accordion-item:last-child{margin-bottom:0}
.faq-acc .accordion-button{
  background:transparent;color:var(--text);
  font-size:16.5px;font-weight:600;letter-spacing:.02em;
  padding:18px 22px;display:flex;align-items:center;gap:14px;
  border-radius:0;box-shadow:none;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--text);background:rgba(240,169,60,.07)}
.faq-acc .accordion-button:focus{box-shadow:inset 0 0 0 2px rgba(240,169,60,.55);border-color:transparent}
.faq-acc .accordion-button::after{
  content:"";width:9px;height:9px;flex:0 0 9px;margin-left:auto;
  border-right:2px solid var(--amber);border-bottom:2px solid var(--amber);
  background-image:none;transform:rotate(-45deg);
  transition:transform .2s ease-out;
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(45deg)}
.faq-num{
  font-size:13px;color:var(--amber);letter-spacing:.1em;flex:0 0 auto;
  font-variant-numeric:tabular-nums;
}
.faq-acc .accordion-body{
  padding:4px 22px 22px 22px;color:var(--muted);font-size:15px;line-height:1.9;
}

/* ============ 相关分类入口 ============ */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
@media (max-width:991.98px){.related-grid{grid-template-columns:1fr}}
.related-card{
  display:flex;flex-direction:column;gap:12px;
  padding:26px 24px;border-radius:var(--radius-lg);
  border:1px solid var(--line);background:rgba(16,36,52,.62);
  box-shadow:var(--shadow-card);
  transition:transform .18s ease-out,border-color .18s ease-out;
}
.related-card:hover{transform:translateY(-3px);border-color:rgba(240,169,60,.45)}
.related-card .tag{
  align-self:flex-start;font-size:12px;letter-spacing:.1em;color:var(--celadon);
  border:1px solid rgba(46,211,176,.35);border-radius:999px;padding:3px 12px;
  background:rgba(46,211,176,.07);
}
.related-card h3{font-size:18px}
.related-card p{font-size:14px;color:var(--muted);line-height:1.8;flex:1}
.related-card .go{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--amber);
}
.related-card:hover .go{color:var(--amber-2)}
.related-card:hover .go .arrow{transform:translateX(3px)}
.related-card .arrow{transition:transform .18s ease-out}

/* ============ 提示条 ============ */
.notice-bar{
  display:flex;gap:14px;align-items:flex-start;
  padding:20px 24px;border-radius:var(--radius-md);
  border:1px solid rgba(46,211,176,.32);
  background:rgba(46,211,176,.07);
  margin-top:32px;
}
.notice-bar .mark{
  width:10px;height:10px;flex:0 0 10px;margin-top:9px;border-radius:2px;
  background:var(--celadon);box-shadow:0 0 10px rgba(46,211,176,.7);
}
.notice-bar p{font-size:14.5px;color:#C9E9E2;line-height:1.85}

/* ============ 页脚 ============ */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,26,38,.9),rgba(7,17,25,1));
  padding:64px 0 28px;margin-top:8px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:32px}
@media (max-width:991.98px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:575.98px){.footer-grid{grid-template-columns:1fr}}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.85;max-width:280px}
.footer-col h4{font-size:14px;letter-spacing:.1em;color:var(--text);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li a{font-size:14px;color:var(--muted)}
.footer-col li a:hover{color:var(--amber-2)}
.footer-note{font-size:13.5px;color:var(--faint);line-height:1.85}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(30,58,77,.7);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:center;align-items:center;
  font-size:13px;color:var(--faint);text-align:center;
}
.footer-bottom span+span::before{content:"·";margin:0 10px;color:rgba(110,132,148,.6)}

@media (max-width:991.98px){
  .header-inner{flex-wrap:wrap;padding:12px 0;gap:12px;min-height:0}
  .header-actions{margin-left:auto}
  .nav-chips{
    order:3;width:100%;margin:0;overflow-x:auto;flex-wrap:nowrap;
    padding-bottom:6px;-webkit-overflow-scrolling:touch;
    -webkit-mask-image:linear-gradient(90deg,transparent,#000 14px,#000 calc(100% - 14px),transparent);
    mask-image:linear-gradient(90deg,transparent,#000 14px,#000 calc(100% - 14px),transparent);
    scrollbar-width:none;
  }
  .nav-chips::-webkit-scrollbar{display:none}
}
@media (max-width:575.98px){
  .brand-name{font-size:16px}
  .btn{padding:12px 20px;font-size:14.5px}
  .page-hero{padding:40px 0 44px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  html{scroll-behavior:auto}
}

/* roulang page: category3 */
:root{
  --bg:#071119;
  --bg-2:#0B1A26;
  --card:#102434;
  --glass:rgba(18,50,70,.55);
  --line:#1E3A4D;
  --brand-1:#0C1D2A;
  --brand-2:#123246;
  --amber:#F0A93C;
  --amber-h:#FFC061;
  --mint:#2ED3B0;
  --text:#E6EDF3;
  --muted:#A7B8C6;
  --dim:#6E8494;
  --danger:#E4695E;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --shadow:0 18px 40px -24px rgba(0,0,0,.85);
  --inset:inset 0 1px 0 rgba(255,255,255,.06);
  --bs-body-bg:#071119;
  --bs-body-color:#E6EDF3;
  --bs-primary:#F0A93C;
  --bs-link-color:#F0A93C;
  --bs-link-hover-color:#FFC061;
  --bs-border-color:#1E3A4D;
}
*,*::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:1.85;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    repeating-linear-gradient(0deg,rgba(255,255,255,.03) 0 1px,transparent 1px 48px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.03) 0 1px,transparent 1px 48px);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--amber);text-decoration:none;transition:color .18s ease-out;}
a:hover{color:var(--amber-h);}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.02em;line-height:1.35;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(240,169,60,.3);color:#fff;}

.shell{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
@media(max-width:991px){.shell{padding:0 24px;}}
@media(max-width:575px){.shell{padding:0 20px;}}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  border:1px solid rgba(46,211,176,.45);
  background:rgba(46,211,176,.08);
  color:var(--mint);font-size:12px;letter-spacing:.06em;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--mint);}

/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(7,17,25,.82);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;text-decoration:none;}
.brand-mark{
  position:relative;width:34px;height:34px;border-radius:9px;
  border:1.5px solid rgba(240,169,60,.6);
  background:linear-gradient(160deg,rgba(240,169,60,.2),rgba(240,169,60,0));
  flex-shrink:0;
}
.brand-mark::before{
  content:"";position:absolute;left:50%;top:9px;bottom:9px;
  transform:translateX(-50%);width:2px;border-radius:2px;background:var(--amber);
}
.brand-mark::after{
  content:"";position:absolute;right:-1.5px;top:50%;transform:translateY(-50%);
  width:7px;height:14px;background:var(--bg);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-size:15px;font-weight:700;color:var(--text);letter-spacing:.04em;}
.brand-sub{font-size:11px;color:var(--dim);letter-spacing:.06em;}

.nav-chips{display:flex;align-items:center;gap:6px;margin-left:8px;flex-wrap:nowrap;}
.chip-link{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 14px;border-radius:999px;
  border:1px solid var(--line);
  color:var(--muted);font-size:14px;white-space:nowrap;
  transition:color .18s ease-out,border-color .18s ease-out,background .18s ease-out;
}
.chip-link:hover{color:var(--text);border-color:rgba(240,169,60,.45);background:rgba(255,255,255,.03);}
.chip-link.active{
  color:var(--text);
  border-color:rgba(240,169,60,.5);
  background:rgba(18,50,70,.75);
  box-shadow:var(--inset);
}
.chip-link.active::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--amber);}

.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto;flex-shrink:0;}
.btn-amber{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:var(--r-sm);border:1px solid rgba(240,169,60,.5);
  background:linear-gradient(180deg,var(--amber-h),var(--amber));
  color:#20140A;font-size:15px;font-weight:700;letter-spacing:.02em;
  box-shadow:0 0 0 1px rgba(240,169,60,.45),0 8px 28px -8px rgba(240,169,60,.55);
  transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out;
  cursor:pointer;
}
.btn-amber:hover{color:#20140A;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(255,192,97,.6),0 12px 32px -8px rgba(240,169,60,.65);}
.btn-amber:active{transform:translateY(1px);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:var(--r-sm);
  border:1px solid var(--line);
  background:rgba(18,50,70,.4);
  color:var(--text);font-size:15px;font-weight:600;
  transition:border-color .18s ease-out,background .18s ease-out,transform .18s ease-out;
  cursor:pointer;
}
.btn-ghost:hover{color:var(--text);border-color:rgba(240,169,60,.6);background:rgba(18,50,70,.65);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.link-quiet{font-size:14px;color:var(--muted);}
.link-quiet:hover{color:var(--amber-h);}
.dock-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:rgba(18,50,70,.45);
  color:var(--text);align-items:center;justify-content:center;cursor:pointer;
}
.dock-toggle span{display:block;width:18px;height:2px;background:var(--text);position:relative;}
.dock-toggle span::before,.dock-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);}
.dock-toggle span::before{top:-6px;}
.dock-toggle span::after{top:6px;}

.dock-panel{
  background:rgba(7,17,25,.97);
  border-top:1px solid var(--line);
  padding:8px 0 20px;
}
.dock-link{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:16px 0;font-size:17px;color:var(--text);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.dock-link:last-child{border-bottom:0;}
.dock-link .dock-arrow{color:var(--amber);font-size:14px;}
.dock-link.active{color:var(--amber-h);}
.dock-cta{margin-top:16px;display:block;width:100%;text-align:center;}

@media(max-width:991px){
  .header-inner{height:64px;gap:16px;}
  .nav-chips{display:none;}
  .header-actions .btn-amber,.header-actions .link-quiet{display:none;}
  .dock-toggle{display:inline-flex;}
  .brand-sub{font-size:10px;}
}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  padding:56px 0 64px;
  border-bottom:1px solid rgba(30,58,77,.7);
  background:
    radial-gradient(900px 400px at 82% -10%,rgba(240,169,60,.10),transparent 62%),
    linear-gradient(180deg,rgba(11,26,38,.9),rgba(7,17,25,0));
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,transparent,rgba(240,169,60,.55),transparent);
  opacity:.3;
}
.crumbs{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--dim);margin-bottom:22px;flex-wrap:wrap;}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--amber-h);}
.crumbs .sep{color:rgba(110,132,148,.6);}
.crumbs .now{color:var(--dim);}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
.hero-title{
  font-size:clamp(30px,4.2vw,46px);
  line-height:1.25;
  margin:20px 0 18px;
}
.hero-title em{font-style:normal;color:var(--amber);}
.hero-lead{font-size:16px;color:var(--muted);max-width:540px;line-height:1.85;}
.hero-points{display:flex;flex-direction:column;gap:10px;margin:26px 0 30px;}
.hero-points li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--muted);}
.hero-points li::before{
  content:"";flex-shrink:0;margin-top:9px;
  width:8px;height:8px;border-radius:2px;background:var(--amber);
  box-shadow:0 0 10px rgba(240,169,60,.5);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.hero-figure{
  position:relative;border-radius:var(--r-lg);
  border:1px solid rgba(255,255,255,.09);
  background:var(--glass);
  padding:10px;
  box-shadow:var(--shadow),var(--inset);
  overflow:hidden;
}
.hero-figure img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-md);
}
.hero-figure::after{
  content:"";position:absolute;inset:10px;border-radius:var(--r-md);
  background:linear-gradient(180deg,rgba(7,17,25,0) 40%,rgba(7,17,25,.75) 100%);
  pointer-events:none;
}
.hero-badge{
  position:absolute;top:22px;right:22px;z-index:2;
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;border-radius:999px;
  font-size:12px;letter-spacing:.08em;color:var(--amber);
  background:rgba(7,17,25,.72);
  border:1px solid rgba(240,169,60,.5);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
@media(max-width:991px){
  .page-hero{padding:40px 0 48px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-figure{order:-1;}
}
@media(max-width:575px){
  .hero-actions .btn-amber,.hero-actions .btn-ghost{width:100%;}
  .hero-points li{font-size:14px;}
}

/* ============ Section base ============ */
.section{padding:96px 0;}
.section.tight{padding:72px 0;}
@media(max-width:991px){.section{padding:72px 0;}.section.tight{padding:56px 0;}}
@media(max-width:575px){.section{padding:56px 0;}.section.tight{padding:44px 0;}}
.section-head{margin-bottom:44px;max-width:720px;}
.section-head .kicker{
  display:inline-block;font-size:12px;letter-spacing:.16em;
  color:var(--amber);margin-bottom:12px;
}
.section-title{font-size:clamp(24px,3vw,34px);line-height:1.35;}
.section-desc{margin-top:14px;color:var(--muted);font-size:15px;}

/* ============ 症状分类行 ============ */
.symptom-list{
  border:1px solid var(--line);border-radius:var(--r-lg);
  background:linear-gradient(180deg,rgba(16,36,52,.7),rgba(11,26,38,.4));
  box-shadow:var(--shadow),var(--inset);
  overflow:hidden;
}
.symptom-row{
  display:grid;grid-template-columns:240px 1fr;gap:24px;
  padding:22px 28px;
  border-bottom:1px solid rgba(30,58,77,.7);
  transition:background .18s ease-out;
  align-items:center;
}
.symptom-row:last-child{border-bottom:0;}
.symptom-row:hover{background:rgba(240,169,60,.05);}
.symptom-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--text);
}
.symptom-tag::before{
  content:"";width:8px;height:8px;border-radius:50%;
  border:1.5px solid var(--amber);flex-shrink:0;
}
.symptom-row p{font-size:15px;color:var(--muted);}
@media(max-width:767px){
  .symptom-row{grid-template-columns:1fr;gap:8px;padding:20px 20px;}
}

/* ============ 时间轴 ============ */
.timeline-wrap{position:relative;}
.tl-item{
  position:relative;
  padding-left:88px;
  padding-bottom:38px;
}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:29px;top:64px;bottom:0;width:1px;
  background:linear-gradient(180deg,rgba(240,169,60,.45),rgba(30,58,77,.3));
}
.tl-item:last-child::before{display:none;}
.tl-num{
  position:absolute;left:0;top:0;
  width:58px;height:58px;border-radius:50%;
  display:grid;place-items:center;
  border:1px solid rgba(240,169,60,.5);
  background:rgba(240,169,60,.07);
  color:var(--amber);font-size:17px;font-weight:700;
  font-variant-numeric:tabular-nums;letter-spacing:.04em;
  transition:background .18s ease-out,border-color .18s ease-out;
}
.tl-item:hover .tl-num{background:rgba(240,169,60,.14);border-color:rgba(255,192,97,.75);}
.tl-card{
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:linear-gradient(180deg,rgba(16,36,52,.75),rgba(11,26,38,.5));
  box-shadow:var(--shadow),var(--inset);
  padding:26px 28px;
  transition:transform .18s ease-out,border-color .18s ease-out;
}
.tl-item:hover .tl-card{transform:translateY(-2px);border-color:rgba(240,169,60,.35);}
.tl-card h3{font-size:20px;margin-bottom:10px;}
.tl-card p{font-size:15px;color:var(--muted);line-height:1.9;}
.tl-meta{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;
}
.tag{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:999px;
  font-size:12px;letter-spacing:.04em;
  border:1px solid rgba(46,211,176,.4);
  background:rgba(46,211,176,.07);
  color:var(--mint);
}
.tag.neutral{
  border-color:var(--line);background:rgba(255,255,255,.03);color:var(--muted);
}
@media(max-width:767px){
  .tl-item{padding-left:66px;padding-bottom:30px;}
  .tl-num{width:46px;height:46px;font-size:15px;}
  .tl-item::before{left:23px;top:52px;}
  .tl-card{padding:20px;}
  .tl-card h3{font-size:18px;}
}

/* ============ 提示条 ============ */
.notice-strip{
  display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:flex-start;
  padding:26px 28px;
  border-radius:var(--r-lg);
  border:1px solid rgba(46,211,176,.42);
  background:linear-gradient(120deg,rgba(46,211,176,.09),rgba(18,50,70,.35));
}
.notice-icon{
  width:44px;height:44px;border-radius:12px;
  display:grid;place-items:center;flex-shrink:0;
  border:1px solid rgba(46,211,176,.45);
  background:rgba(46,211,176,.1);
  color:var(--mint);font-weight:700;font-size:18px;
}
.notice-strip h3{font-size:18px;margin-bottom:8px;}
.notice-strip p{font-size:15px;color:var(--muted);line-height:1.9;}
@media(max-width:575px){
  .notice-strip{grid-template-columns:1fr;padding:22px;}
}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;}
.accordion-item{
  background:transparent;border:0;margin-bottom:12px;
}
.accordion-item:last-child{margin-bottom:0;}
.accordion-button{
  position:relative;
  width:100%;
  display:flex;align-items:center;gap:16px;
  padding:20px 24px;
  border:1px solid var(--line);
  border-radius:var(--r-md) !important;
  background:linear-gradient(180deg,rgba(16,36,52,.72),rgba(11,26,38,.5));
  color:var(--text);
  font-size:17px;font-weight:600;line-height:1.5;
  box-shadow:var(--inset);
  transition:border-color .18s ease-out,background .18s ease-out;
}
.accordion-button::before{
  content:attr(data-index);
  font-size:13px;font-weight:700;color:var(--amber);
  font-variant-numeric:tabular-nums;letter-spacing:.06em;
  flex-shrink:0;
}
.accordion-button:not(.collapsed){
  background:linear-gradient(180deg,rgba(24,52,74,.85),rgba(13,31,45,.6));
  border-color:rgba(240,169,60,.45);
  color:var(--text);
  box-shadow:var(--inset);
}
.accordion-button:hover{border-color:rgba(240,169,60,.4);}
.accordion-button:focus{box-shadow:0 0 0 2px rgba(240,169,60,.55);border-color:rgba(240,169,60,.6);}
.accordion-button::after{
  content:"";flex-shrink:0;margin-left:auto;
  width:9px;height:9px;
  border-right:1.5px solid var(--amber);
  border-bottom:1.5px solid var(--amber);
  transform:rotate(45deg);
  background-image:none !important;
  transition:transform .2s ease-out;
}
.accordion-button:not(.collapsed)::after{transform:rotate(225deg);}
.accordion-body{
  padding:20px 24px 6px 24px;
  color:var(--muted);
  font-size:15px;
  line-height:1.9;
  border-left:3px solid rgba(240,169,60,.5);
  margin-left:8px;
  margin-top:8px;
}
@media(max-width:575px){
  .accordion-button{font-size:15px;padding:16px 18px;gap:10px;}
  .accordion-body{padding:16px 18px 4px 18px;margin-left:4px;}
}

/* ============ 相关分类 ============ */
.related-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.related-card{
  display:flex;gap:20px;align-items:center;
  padding:24px;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:linear-gradient(180deg,rgba(16,36,52,.7),rgba(11,26,38,.45));
  box-shadow:var(--shadow),var(--inset);
  transition:transform .18s ease-out,border-color .18s ease-out;
}
.related-card:hover{transform:translateY(-2px);border-color:rgba(240,169,60,.4);color:var(--text);}
.related-card img{
  width:96px;height:96px;object-fit:cover;border-radius:var(--r-md);flex-shrink:0;
  border:1px solid rgba(255,255,255,.08);
}
.related-card h3{font-size:18px;color:var(--text);margin-bottom:8px;}
.related-card p{font-size:14px;color:var(--muted);line-height:1.8;}
.related-card .go{
  display:inline-flex;align-items:center;gap:6px;margin-top:12px;
  font-size:14px;color:var(--amber);
}
.related-card .go span{transition:transform .18s ease-out;}
.related-card:hover .go span{transform:translateX(3px);}
@media(max-width:991px){.related-grid{grid-template-columns:1fr;}}
@media(max-width:575px){
  .related-card{flex-direction:column;align-items:flex-start;}
  .related-card img{width:100%;height:160px;}
}

/* ============ CTA ============ */
.cta-band{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  padding:32px 36px;
  border-radius:var(--r-lg);
  border:1px solid rgba(255,255,255,.1);
  background:
    radial-gradient(600px 200px at 12% 0%,rgba(240,169,60,.14),transparent 65%),
    linear-gradient(180deg,rgba(18,50,70,.75),rgba(11,26,38,.6));
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow),var(--inset);
}
.cta-band h2{font-size:20px;}
.cta-band p{font-size:14px;color:var(--muted);margin-top:6px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.copy-tip{
  position:fixed;left:50%;bottom:36px;transform:translate(-50%,12px);
  display:flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:999px;
  background:rgba(11,26,38,.92);
  border:1px solid rgba(46,211,176,.5);
  color:var(--mint);font-size:14px;
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  opacity:0;pointer-events:none;
  transition:opacity .25s ease-out,transform .25s ease-out;
  z-index:2000;
}
.copy-tip.show{opacity:1;transform:translate(-50%,0);}
@media(max-width:575px){
  .cta-band{padding:24px 20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-amber,.cta-actions .btn-ghost{width:100%;}
}

/* ============ Footer ============ */
.site-footer{
  margin-top:0;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,26,38,.6),rgba(7,17,25,.95));
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:32px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.85;max-width:280px;}
.footer-col h4{
  font-size:14px;color:var(--text);letter-spacing:.06em;margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul a{font-size:14px;color:var(--muted);}
.footer-col ul a:hover{color:var(--amber-h);}
.footer-note{font-size:13px;color:var(--dim);line-height:1.85;}
.footer-bottom{
  margin-top:48px;padding-top:22px;
  border-top:1px solid rgba(30,58,77,.7);
  display:flex;justify-content:center;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--dim);
  font-variant-numeric:tabular-nums;
}
@media(max-width:991px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px;}}
@media(max-width:575px){
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{padding:48px 0 24px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}

@media(prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  .btn-amber:hover,.btn-ghost:hover,.tl-item:hover .tl-card,.related-card:hover{transform:none;}
}

/* roulang page: category2 */
:root{
  --bg:#071119;
  --bg-2:#0B1A26;
  --card:#102434;
  --glass:rgba(18,50,70,.55);
  --line:#1E3A4D;
  --line-soft:rgba(255,255,255,.07);
  --brand-1:#0C1D2A;
  --brand-2:#123246;
  --amber:#F0A93C;
  --amber-h:#FFC061;
  --mint:#2ED3B0;
  --text:#E6EDF3;
  --muted:#A7B8C6;
  --dim:#6E8494;
  --danger:#E4695E;
  --r-card:18px;
  --r-sm:14px;
  --r-btn:12px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.85), inset 0 1px 0 rgba(255,255,255,.06);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    repeating-linear-gradient(0deg, rgba(255,255,255,.03) 0 1px, transparent 1px 48px),
    repeating-linear-gradient(90deg, rgba(255,255,255,.03) 0 1px, transparent 1px 48px);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .18s ease-out}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 1em}
h1,h2,h3,h4{margin:0;letter-spacing:.02em;font-weight:700;color:var(--text)}
button{font-family:inherit}
::selection{background:rgba(240,169,60,.28);color:#fff}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
  outline:2px solid var(--amber);
  outline-offset:2px;
  border-radius:6px;
}
.shell{max-width:1200px;margin:0 auto;padding:0 32px;width:100%}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(7,17,25,.82);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:24px;height:72px;min-height:72px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{position:relative;width:30px;height:30px;border-radius:9px;border:1.5px solid var(--amber);box-shadow:inset 0 0 12px rgba(240,169,60,.18);flex-shrink:0}
.brand-mark::before{content:"";position:absolute;right:-4px;bottom:-4px;width:15px;height:15px;background:var(--bg);border-radius:4px}
.brand-mark::after{content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:2px;height:13px;border-radius:2px;background:var(--amber)}
.brand-text{display:flex;flex-direction:column;line-height:1.16}
.brand-name{font-size:16px;font-weight:700;letter-spacing:.02em}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.08em}
.nav-chips{display:flex;align-items:center;gap:8px;flex:1;justify-content:center;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;padding:4px 0}
.nav-chips::-webkit-scrollbar{display:none}
.chip-link{
  position:relative;display:inline-flex;align-items:center;gap:7px;
  padding:7px 15px;border-radius:999px;border:1px solid var(--line);
  font-size:14px;color:var(--muted);white-space:nowrap;
  transition:color .18s ease-out,background .18s ease-out,border-color .18s ease-out;
}
.chip-link:hover{color:var(--text);border-color:#2C5468;background:rgba(255,255,255,.03)}
.chip-link.active{
  color:var(--text);background:var(--glass);border-color:#2C5468;
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
}
.chip-link.active::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--amber);box-shadow:0 0 8px rgba(240,169,60,.85)}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.btn-amber,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.4;cursor:pointer;
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn-amber{background:var(--amber);color:#08131B;box-shadow:0 0 0 1px rgba(240,169,60,.45),0 8px 28px -8px rgba(240,169,60,.55)}
.btn-amber:hover{background:var(--amber-h);color:#08131B;transform:translateY(-1px)}
.btn-amber:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(240,169,60,.45),0 4px 14px -8px rgba(240,169,60,.5)}
.btn-ghost{background:rgba(255,255,255,.03);border-color:var(--line);color:var(--text);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.btn-ghost:hover{border-color:rgba(240,169,60,.6);color:var(--amber-h);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm-cta{padding:9px 18px;font-size:14px}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:11px;border:1px solid var(--line);
  background:rgba(255,255,255,.03);cursor:pointer;position:relative;flex-shrink:0;
}
.nav-toggle span{position:absolute;left:50%;width:16px;height:2px;border-radius:2px;background:var(--muted);transform:translateX(-50%);transition:background .18s}
.nav-toggle span:nth-child(1){top:13px}
.nav-toggle span:nth-child(2){top:19px}
.nav-toggle span:nth-child(3){top:25px}
.nav-toggle:hover span{background:var(--amber)}

/* ---------- drawer ---------- */
.drawer{
  width:min(340px,88vw)!important;
  background:rgba(8,20,29,.97)!important;
  color:var(--text);
  border-left:1px solid var(--line);
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;border-bottom:1px solid var(--line)}
.drawer-title{font-size:15px;font-weight:700;letter-spacing:.02em}
.drawer-close{position:relative;width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:transparent;cursor:pointer;flex-shrink:0}
.drawer-close span{position:absolute;left:50%;top:50%;width:14px;height:2px;border-radius:2px;background:var(--muted)}
.drawer-close span:first-child{transform:translate(-50%,-50%) rotate(45deg)}
.drawer-close span:last-child{transform:translate(-50%,-50%) rotate(-45deg)}
.drawer-close:hover span{background:var(--amber)}
.drawer-body{padding:12px 20px 32px;display:flex;flex-direction:column}
.drawer-link{display:block;padding:15px 2px;font-size:17px;font-weight:600;color:var(--muted);border-bottom:1px solid var(--line)}
.drawer-link:hover{color:var(--text)}
.drawer-link.active{color:var(--amber)}
.drawer-cta{margin-top:24px;width:100%}
.drawer-note{font-size:13px;color:var(--dim);line-height:1.8;margin:18px 0 0}

/* ---------- hero ---------- */
.hero{
  position:relative;text-align:center;padding:56px 0 72px;
  background-image:linear-gradient(180deg,rgba(7,17,25,.86),rgba(7,17,25,.95)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.hero::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,rgba(240,169,60,.32),transparent)}
.crumbs{display:flex;justify-content:center;align-items:center;gap:8px;font-size:13px;color:var(--dim);margin-bottom:24px;flex-wrap:wrap}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--amber-h)}
.crumbs .sep{color:var(--dim)}
.badge-mint{
  display:inline-flex;align-items:center;gap:8px;padding:6px 16px;border-radius:999px;
  border:1px solid rgba(46,211,176,.45);background:rgba(46,211,176,.07);
  color:var(--mint);font-size:12px;letter-spacing:.1em;
}
.hero h1{
  font-size:clamp(30px,4.2vw,46px);line-height:1.25;font-weight:800;
  max-width:900px;margin:24px auto 18px;letter-spacing:.02em;
  word-break:break-word;
}
.hero-sub{font-size:17px;line-height:1.85;color:var(--muted);max-width:660px;margin:0 auto}
.hero-points{display:flex;justify-content:center;gap:28px;flex-wrap:wrap;margin:26px 0 0}
.hero-points li{position:relative;padding-left:17px;font-size:14px;color:var(--muted)}
.hero-points li::before{content:"";position:absolute;left:0;top:.62em;width:7px;height:7px;border-radius:2px;background:var(--amber)}
.hero-actions{display:flex;justify-content:center;gap:14px;margin-top:34px;flex-wrap:wrap}

/* ---------- sections ---------- */
.section{padding:80px 0}
.section-alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:40px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.kicker{display:inline-block;font-size:12px;letter-spacing:.18em;color:var(--amber);margin-bottom:14px}
.section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.35;margin-bottom:14px}
.section-head p{color:var(--muted);font-size:15px;margin:0}

/* ---------- kv list ---------- */
.kv-list{border-top:1px solid var(--line)}
.kv-item{position:relative;border-bottom:1px solid var(--line);transition:background .18s ease-out}
.kv-item summary{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px 8px 20px 22px;cursor:pointer;list-style:none}
.kv-item summary::-webkit-details-marker{display:none}
.kv-item summary::marker{content:""}
.kv-item:hover{background:rgba(255,255,255,.02)}
.kv-item[open]{background:rgba(18,50,70,.35)}
.kv-item[open]::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:2px;background:var(--amber)}
.kv-label{display:flex;align-items:center;gap:14px;font-size:16px;font-weight:600;color:var(--text)}
.kv-idx{font-size:12px;color:var(--dim);font-variant-numeric:tabular-nums;letter-spacing:.08em}
.kv-tail{display:flex;align-items:center;gap:14px;color:var(--muted);font-size:13px;white-space:nowrap}
.kv-plus{position:relative;width:16px;height:16px;flex-shrink:0}
.kv-plus::before,.kv-plus::after{content:"";position:absolute;background:var(--amber);border-radius:2px;transition:transform .2s ease-out}
.kv-plus::before{left:0;top:7px;width:16px;height:2px}
.kv-plus::after{left:7px;top:0;width:2px;height:16px}
.kv-item[open] .kv-plus::after{transform:scaleY(0)}
.kv-body{padding:0 22px 24px 22px;color:var(--muted);font-size:15px;line-height:1.9;max-width:860px}

/* ---------- explain ---------- */
.explain-block{
  display:grid;grid-template-columns:1.12fr .88fr;gap:44px;align-items:center;
  padding:40px 0;border-bottom:1px solid var(--line);
}
.explain-block:last-child{border-bottom:0;padding-bottom:0}
.explain-block:first-child{padding-top:0}
.explain-block.reverse .explain-text{order:2}
.explain-text h3{font-size:20px;line-height:1.5;margin-bottom:14px}
.explain-text p{color:var(--muted);font-size:15px;line-height:1.9;margin:0 0 10px}
.explain-text p:last-child{margin-bottom:0}
.glass-mini{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
}
.glass-mini img{border-radius:var(--r-sm);margin-bottom:18px;width:100%;aspect-ratio:16/10;object-fit:cover}
.mini-list{display:grid;gap:13px}
.mini-list li{display:flex;align-items:center;justify-content:space-between;gap:14px;font-size:14px;color:var(--muted);padding-bottom:13px;border-bottom:1px dashed var(--line-soft)}
.mini-list li:last-child{border-bottom:0;padding-bottom:0}
.mini-list .state{font-size:12px;color:var(--mint);border:1px solid rgba(46,211,176,.4);border-radius:999px;padding:2px 10px;white-space:nowrap}
.mini-steps{display:grid;gap:14px}
.mini-steps li{display:flex;gap:12px;font-size:14px;line-height:1.7;color:var(--muted)}
.mini-steps .n{color:var(--amber);font-weight:700;font-variant-numeric:tabular-nums;flex-shrink:0}

/* ---------- notice ---------- */
.notice{
  display:flex;gap:16px;align-items:flex-start;
  border:1px solid rgba(46,211,176,.4);background:rgba(46,211,176,.06);
  border-radius:var(--r-sm);padding:20px 22px;margin-bottom:48px;
}
.notice svg{flex-shrink:0;margin-top:3px}
.notice p{margin:0;font-size:14.5px;line-height:1.85;color:var(--muted)}
.notice strong{color:var(--text)}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px}
.faq-item{
  position:relative;background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:border-color .18s ease-out;
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
}
.faq-item:hover{border-color:#2C5468}
.faq-q{margin:0;font-size:inherit;font-weight:400}
.faq-btn{
  width:100%;display:flex;align-items:center;gap:16px;padding:20px 24px;
  background:none;border:0;color:var(--text);font-size:16px;font-weight:600;
  text-align:left;cursor:pointer;transition:color .18s ease-out;
}
.faq-num{font-size:12px;color:var(--dim);font-variant-numeric:tabular-nums;letter-spacing:.08em;min-width:24px}
.faq-title{flex:1;line-height:1.6}
.faq-arrow{width:9px;height:9px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:rotate(45deg);transition:transform .2s ease-out,border-color .2s ease-out;flex-shrink:0;margin-right:2px}
.faq-btn:hover{color:var(--amber-h)}
.faq-btn[aria-expanded="true"]{color:var(--amber-h)}
.faq-btn[aria-expanded="true"] .faq-arrow{transform:rotate(-135deg);border-color:var(--amber)}
.faq-item:has(.faq-btn[aria-expanded="true"]){border-color:rgba(240,169,60,.4)}
.faq-item:has(.faq-btn[aria-expanded="true"])::before{content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:2px;background:var(--amber)}
.faq-body{padding:0 24px 24px 64px;color:var(--muted);font-size:15px;line-height:1.9}

/* ---------- related ---------- */
.related-card{
  display:flex;flex-direction:column;gap:10px;height:100%;padding:26px;
  border-radius:var(--r-card);border:1px solid var(--line);background:rgba(16,36,52,.65);
  box-shadow:var(--shadow-card);transition:transform .18s ease-out,border-color .18s ease-out,background .18s ease-out;
}
.related-card:hover{transform:translateY(-2px);border-color:rgba(240,169,60,.5);background:rgba(18,50,70,.55)}
.related-card h3{font-size:18px;line-height:1.5}
.related-card p{font-size:14px;color:var(--muted);margin:0;line-height:1.8}
.related-card .go{color:var(--amber);font-size:14px;font-weight:600;margin-top:4px;display:inline-flex;align-items:center;gap:6px}
.related-card:hover .go{color:var(--amber-h)}

/* ---------- cta band ---------- */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:30px 34px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line);box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
}
.cta-band p{margin:0;font-size:17px;font-weight:600;line-height:1.6}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- copy tip ---------- */
.copy-tip{
  position:fixed;left:50%;bottom:36px;transform:translate(-50%,12px);
  opacity:0;pointer-events:none;z-index:1080;
  display:flex;align-items:center;gap:9px;
  padding:10px 20px;border-radius:999px;font-size:14px;color:var(--text);
  background:rgba(18,50,70,.94);border:1px solid rgba(46,211,176,.5);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:opacity .25s ease-out,transform .25s ease-out;
}
.copy-tip.show{opacity:1;transform:translate(-50%,0)}
.copy-tip svg{flex-shrink:0}

/* ---------- footer ---------- */
.site-footer{
  border-top:1px solid var(--line);background:var(--bg-2);
  padding:56px 0 0;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.25fr;gap:32px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand .brand-mark::before{background:var(--bg-2)}
.footer-brand p{color:var(--muted);font-size:14px;line-height:1.85;margin:0;max-width:300px}
.footer-col h4{font-size:14px;margin:0 0 16px;letter-spacing:.04em}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:var(--muted);font-size:14px}
.footer-col a:hover{color:var(--amber-h)}
.footer-note{color:var(--muted);font-size:13.5px;line-height:1.85;margin:0}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;
  margin-top:44px;padding:20px 0;border-top:1px solid var(--line);
  font-size:13px;color:var(--dim);
}
.footer-bottom span{font-variant-numeric:tabular-nums}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .explain-block{gap:32px}
}
@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:991.98px){
  .header-inner{height:64px;min-height:64px;gap:12px}
  .nav-chips{
    justify-content:flex-start;
    -webkit-mask-image:linear-gradient(90deg,transparent,#000 14px,#000 calc(100% - 14px),transparent);
    mask-image:linear-gradient(90deg,transparent,#000 14px,#000 calc(100% - 14px),transparent);
  }
  .btn-sm-cta{display:none}
  .nav-toggle{display:inline-block}
  .section{padding:64px 0}
  .hero{padding:48px 0 60px}
}
@media (max-width:767.98px){
  .shell{padding:0 24px}
  .section{padding:56px 0}
  .explain-block{grid-template-columns:1fr;gap:22px}
  .explain-block.reverse .explain-text{order:0}
  .faq-body{padding:0 24px 22px 24px}
  .faq-btn{padding:18px 20px;gap:12px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:26px 24px}
  .hero h1{font-size:clamp(26px,6vw,34px)}
  .hero-sub{font-size:16px}
  .kv-item summary{padding:18px 6px 18px 18px}
  .kv-body{padding:0 18px 20px 18px}
  .kv-tail span{display:none}
  .footer-grid{grid-template-columns:1fr;gap:34px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px}
}
@media (max-width:519.98px){
  .shell{padding:0 20px}
  .hero{padding:40px 0 52px}
  .hero-actions{flex-direction:column}
  .hero-actions .btn-amber,.hero-actions .btn-ghost{width:100%}
  .cta-actions{width:100%}
  .cta-actions .btn-amber,.cta-actions .btn-ghost{width:100%}
  .cta-band p{font-size:16px}
  .hero-points{gap:16px}
  .copy-tip{width:calc(100% - 40px);justify-content:center;font-size:13px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important;animation:none!important}
  .btn-amber:hover,.btn-ghost:hover,.related-card:hover{transform:none}
}