/* roulang page: index */
:root{
  --bg-void:#0A0912;
  --bg-deep:#12101F;
  --surface:#191733;
  --surface-2:#221E3D;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.18);
  --text:#F2F0FA;
  --muted:#A9A4C7;
  --accent:#35F0C6;
  --accent-2:#FF3D7F;
  --accent-3:#F5C86A;
  --focus:#8A7BFF;
  --radius-card:14px;
  --radius-btn:10px;
  --shadow:0 8px 24px rgba(0,0,0,.45);
  --shadow-hover:0 0 0 1px var(--accent),0 12px 32px rgba(53,240,198,.18);
  --container:1200px;
  --sect:96px;
  --font-sans:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;
  --bs-primary:#35F0C6;
  --bs-body-bg:#0A0912;
  --bs-body-color:#F2F0FA;
  --bs-link-color:#35F0C6;
  --bs-link-hover-color:#6FF7D7;
  --bs-border-color:rgba(255,255,255,.08);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-void);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.9;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.85) 1px,transparent 1px);
  background-size:130px 130px;
  opacity:.035;
}
body::after{
  content:"";
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:repeating-linear-gradient(28deg,rgba(255,255,255,.6) 0 1px,transparent 1px 96px);
  opacity:.03;
}
img{max-width:100%;display:block}
a{color:var(--accent);text-decoration:none}
a:hover{color:#6FF7D7}
button{font-family:inherit}
h1,h2,h3,h4{font-weight:800;letter-spacing:-.02em;line-height:1.25;margin:0;color:var(--text)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px}
::selection{background:rgba(53,240,198,.3);color:#fff}
.wrap{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;position:relative}
.mono{font-family:var(--font-mono)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1035;
  background:rgba(10,9,18,.9);
  border-bottom:1px solid transparent;
  transition:border-color .25s ease,background .25s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);background:rgba(10,9,18,.96)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--text)}
.logo:hover{color:var(--text)}
.logo-mark{
  width:26px;height:26px;flex:0 0 26px;border-radius:8px;
  background:
    radial-gradient(circle at 30% 30%,#35F0C6 0 2px,transparent 2px),
    radial-gradient(circle at 72% 66%,#FF3D7F 0 2px,transparent 2px),
    linear-gradient(140deg,#191733,#0A0912);
  border:1px solid var(--line-2);
  box-shadow:0 0 14px rgba(53,240,198,.22);
}
.logo-text{display:flex;align-items:baseline;gap:6px;line-height:1}
.logo-main{font-size:17px;font-weight:800;letter-spacing:.02em}
.logo-sub{
  font-size:11px;font-weight:600;letter-spacing:.14em;color:var(--accent);
  border:1px solid rgba(53,240,198,.4);border-radius:999px;padding:2px 7px;
}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-link-item{
  position:relative;font-size:15px;color:var(--muted);text-decoration:none;
  padding:6px 0;transition:color .2s ease;white-space:nowrap;
}
.nav-link-item::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;
  background:var(--accent);transition:right .28s ease;
}
.nav-link-item:hover{color:var(--text)}
.nav-link-item:hover::after{right:0}
.nav-link-item.active{color:var(--text);font-weight:600}
.nav-link-item.active::after{right:0}
.nav-link-item.active::before{
  content:"";position:absolute;left:-12px;top:50%;width:3px;height:3px;border-radius:50%;
  background:var(--accent);transform:translateY(-50%);
}
.nav-actions{display:flex;align-items:center;gap:14px}
.icon-btn{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:10px;color:var(--muted);
  cursor:pointer;transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.icon-btn:hover{border-color:var(--accent);color:var(--accent);background:rgba(53,240,198,.06)}
.icon-btn.sm{width:34px;height:34px;border-radius:9px}
.nav-cta{
  display:inline-flex;align-items:center;height:40px;padding:0 18px;border-radius:999px;
  border:1px solid rgba(53,240,198,.45);color:var(--accent);font-size:14px;font-weight:600;
  transition:background .2s ease,color .2s ease;
}
.nav-cta:hover{background:var(--surface-2);color:var(--accent)}
.nav-toggle{display:none}
.search-panel{
  max-height:0;overflow:hidden;transition:max-height .3s ease;
  border-bottom:1px solid transparent;background:rgba(10,9,18,.96);
}
.search-panel.open{max-height:88px;border-bottom-color:var(--line)}
.search-inner{display:flex;align-items:center;gap:12px;padding:14px 0}
.search-inner input{
  flex:1;height:44px;background:var(--surface);border:1px solid var(--line);border-radius:10px;
  color:var(--text);padding:0 16px;font-size:15px;
}
.search-inner input::placeholder{color:var(--muted)}
.search-inner input:focus{outline:none;border-color:var(--accent)}
.search-hint{font-size:13px;color:var(--muted);white-space:nowrap;font-family:var(--font-mono)}

/* drawer */
.nav-drawer{background:var(--bg-deep)!important;color:var(--text);width:min(86vw,360px)!important}
.nav-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 22px}
.nav-drawer .offcanvas-body{padding:22px}
.drawer-links{display:flex;flex-direction:column;gap:4px;margin-bottom:24px}
.drawer-links a{
  display:flex;align-items:center;justify-content:space-between;min-height:48px;
  color:var(--muted);font-size:16px;border-bottom:1px solid var(--line);padding:0 2px;
}
.drawer-links a.active{color:var(--accent);font-weight:600}
.drawer-cta{
  display:inline-flex;align-items:center;justify-content:center;width:100%;height:48px;
  border-radius:10px;background:var(--accent);color:#07130F;font-weight:700;
}
.btn-close{filter:invert(1) grayscale(1) brightness(2)}

/* ---------- buttons ---------- */
.btn-e{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  background:var(--accent);color:#07130F;font-weight:700;font-size:15px;border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease;
}
.btn-e:hover{background:#4FF4D0;color:#07130F;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(53,240,198,.5),0 12px 28px rgba(53,240,198,.22)}
.btn-e:active{transform:translateY(0)}
.btn-o{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  background:transparent;border:1px solid var(--line-2);color:var(--text);font-weight:600;font-size:15px;
  transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.btn-o:hover{background:var(--surface-2);color:var(--text);border-color:var(--accent);transform:translateY(-1px)}
.btn-o:active{transform:translateY(0)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;height:48px;font-size:15px;font-weight:600;
  color:var(--accent);position:relative;
}
.btn-text::after{
  content:"";position:absolute;left:0;right:100%;bottom:11px;height:1px;background:var(--accent);
  transition:right .28s ease;
}
.btn-text:hover::after{right:0}
.btn-text .arw{transition:transform .2s ease}
.btn-text:hover .arw{transform:translateX(4px)}

/* ---------- hero ---------- */
.hero{padding:76px 0 72px;position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:12px;
  letter-spacing:.18em;color:var(--accent);text-transform:uppercase;margin-bottom:18px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--accent);display:inline-block}
.hero-title{font-size:clamp(31px,4.2vw,50px);line-height:1.22;letter-spacing:-.02em;margin-bottom:20px}
.hero-title .hl{color:var(--accent)}
.hero-sub{font-size:17px;color:var(--muted);margin-bottom:32px;max-width:520px}
.hero-cta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:34px}
.tag-row{display:flex;gap:10px;flex-wrap:wrap}
.tag-row li{
  font-family:var(--font-mono);font-size:12.5px;color:var(--muted);
  border:1px solid var(--line);border-radius:999px;padding:6px 14px;background:rgba(25,23,51,.6);
}
.tag-row li b{color:var(--accent);font-weight:600}
.hero-visual{
  position:relative;border-radius:18px;overflow:hidden;border:1px solid var(--line);
  aspect-ratio:16/11;box-shadow:var(--shadow);
}
.hero-visual img{width:100%;height:100%;object-fit:cover}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(10,9,18,.08) 0%,rgba(10,9,18,.68) 100%);
}
.hv-line{position:absolute;right:26px;top:26px;width:56px;height:1px;background:var(--accent);transform:rotate(-32deg);z-index:2}
.hv-badge{
  position:absolute;left:20px;bottom:20px;z-index:2;font-family:var(--font-mono);font-size:12px;
  letter-spacing:.06em;color:var(--text);background:rgba(10,9,18,.72);
  border:1px solid var(--line-2);border-radius:999px;padding:6px 14px;
}

/* ---------- sections ---------- */
.section{padding:var(--sect) 0;position:relative;z-index:1}
.section-tight{padding-top:0}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:38px;flex-wrap:wrap;
}
.section-title{font-size:clamp(22px,2.6vw,30px)}
.section-desc{color:var(--muted);font-size:14.5px;margin-top:8px;max-width:620px}
.more-link{
  font-size:14px;color:var(--accent);display:inline-flex;align-items:center;gap:6px;
  padding-bottom:2px;border-bottom:1px solid rgba(53,240,198,.35);
  transition:border-color .2s ease,color .2s ease;
}
.more-link:hover{border-color:var(--accent)}

/* ---------- cover feature ---------- */
.cover-feature{
  position:relative;border-radius:18px;overflow:hidden;border:1px solid var(--line);
  aspect-ratio:21/9;box-shadow:var(--shadow);
  background:#0d0b18 url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.cover-feature::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(10,9,18,.95) 0%,rgba(10,9,18,.66) 44%,rgba(18,16,31,.22) 76%,rgba(18,16,31,.55) 100%);
}
.cover-feature::after{
  content:"";position:absolute;inset:0;opacity:.09;
  background-image:repeating-linear-gradient(28deg,rgba(53,240,198,.8) 0 1px,transparent 1px 30px);
}
.cover-inner{
  position:relative;z-index:2;height:100%;display:flex;flex-direction:column;
  justify-content:space-between;padding:38px 42px;
}
.cover-top{max-width:600px}
.cover-kicker{font-family:var(--font-mono);font-size:12px;letter-spacing:.2em;color:var(--accent-3);display:block;margin-bottom:12px}
.cover-title{font-size:clamp(24px,3vw,36px);margin-bottom:12px}
.cover-desc{color:var(--muted);font-size:15px;max-width:520px}
.cover-bottom{display:flex;justify-content:flex-end}
.cover-btn{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 22px;border-radius:999px;
  background:rgba(10,9,18,.72);border:1px solid rgba(53,240,198,.5);color:var(--accent);
  font-size:14px;font-weight:600;transition:background .2s ease,transform .2s ease;
}
.cover-btn:hover{background:rgba(53,240,198,.14);color:var(--accent);transform:translateY(-1px)}

/* ---------- toc ---------- */
.toc-list{
  display:grid;grid-template-columns:1fr 1fr;column-gap:56px;
  border-top:1px solid var(--line);
}
.toc-item{border-bottom:1px solid var(--line)}
.toc-item a{
  display:flex;align-items:center;gap:16px;min-height:76px;padding:12px 0;
  text-decoration:none;transition:transform .22s ease;
}
.toc-item a:hover{transform:translateX(4px)}
.toc-num{font-family:var(--font-mono);font-size:13.5px;color:var(--muted);flex:0 0 30px;transition:color .2s ease}
.toc-item a:hover .toc-num{color:var(--accent)}
.toc-body{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}
.toc-title{font-size:17px;font-weight:700;color:var(--text);transition:color .2s ease}
.toc-item a:hover .toc-title{color:var(--accent)}
.toc-note{font-size:13px;color:var(--muted);line-height:1.65}
.toc-badge{
  font-family:var(--font-mono);font-size:11.5px;color:var(--accent);
  border:1px solid rgba(53,240,198,.35);border-radius:999px;padding:2px 10px;white-space:nowrap;
}
.toc-arrow{color:var(--muted);transition:color .2s ease,transform .2s ease}
.toc-item a:hover .toc-arrow{color:var(--accent);transform:translateX(3px)}

/* ---------- cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.post-card{
  position:relative;display:flex;flex-direction:column;
  background:linear-gradient(180deg,var(--surface) 0%,var(--bg-deep) 100%);
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.post-card:hover{transform:translateY(-3px);border-color:var(--accent);box-shadow:var(--shadow-hover)}
.post-card::after{
  content:"";position:absolute;top:0;right:0;width:22px;height:22px;pointer-events:none;
  background:linear-gradient(225deg,rgba(53,240,198,.42) 0 1px,transparent 1px);
}
.card-media{aspect-ratio:16/9;overflow:hidden;background:var(--surface-2);position:relative}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.post-card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1}
.badge-row{display:flex;gap:8px;flex-wrap:wrap}
.badge-x{
  display:inline-flex;align-items:center;font-size:12px;line-height:1;
  padding:5px 11px;border-radius:999px;background:rgba(255,61,127,.14);
  border:1px solid rgba(255,61,127,.38);color:#FF87AF;font-weight:600;
}
.badge-x.ghost{background:rgba(53,240,198,.1);border-color:rgba(53,240,198,.32);color:var(--accent)}
.card-title{
  font-size:17.5px;font-weight:700;line-height:1.5;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-title a{color:var(--text);text-decoration:none;transition:color .2s ease}
.post-card:hover .card-title a{color:var(--accent)}
.card-excerpt{
  font-size:14px;color:var(--muted);line-height:1.8;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  position:relative;z-index:2;
}
.card-meta{display:flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:12.5px;color:var(--muted)}
.card-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--line-2)}
.card-actions{display:flex;gap:8px}
.post-card .stretched-link::after{position:absolute;inset:0;z-index:1;content:""}

/* ---------- empty state ---------- */
.empty-state{
  grid-column:1/-1;display:flex;flex-direction:column;align-items:center;gap:14px;
  text-align:center;padding:56px 24px;border:1px dashed var(--line-2);border-radius:var(--radius-card);
  background:rgba(25,23,51,.55);
}
.empty-icon{
  width:52px;height:52px;border-radius:14px;border:1px solid var(--line-2);
  display:flex;align-items:center;justify-content:center;color:var(--accent);
  background:radial-gradient(circle at 40% 35%,rgba(53,240,198,.22),transparent 60%),var(--surface);
}
.empty-state p{color:var(--muted);font-size:14.5px}
.empty-state a{font-size:14px;border-bottom:1px solid rgba(53,240,198,.4)}

/* ---------- strip ---------- */
.strip-wrap{position:relative;z-index:1}
.strip{
  display:flex;gap:14px;overflow-x:auto;scroll-snap-type:x proximity;
  padding:6px 24px 16px;scrollbar-width:none;
}
.strip::-webkit-scrollbar{display:none}
.strip-item{
  scroll-snap-align:start;flex:0 0 auto;display:inline-flex;align-items:center;gap:10px;
  padding:13px 22px;border:1px solid var(--line);border-radius:999px;background:var(--surface);
  color:var(--muted);font-size:14.5px;text-decoration:none;
  transition:border-color .2s ease,color .2s ease,background .2s ease,transform .2s ease;
}
.strip-item:hover{border-color:var(--accent);color:var(--text);background:var(--surface-2);transform:translateY(-2px)}
.strip-num{font-family:var(--font-mono);font-size:12px;color:var(--accent)}
.strip-fade{
  position:absolute;top:0;bottom:0;right:0;width:96px;pointer-events:none;
  background:linear-gradient(90deg,rgba(10,9,18,0) 0%,var(--bg-void) 90%);
}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;z-index:1;padding:52px 0;
  background-color:var(--bg-deep);
  background-image:radial-gradient(rgba(53,240,198,.4) 1px,transparent 1px);
  background-size:18px 18px;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-title{font-size:clamp(21px,2.3vw,27px);margin-bottom:8px}
.cta-sub{color:var(--muted);font-size:14.5px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- faq ---------- */
.faq-list{border-top:1px solid var(--line);max-width:900px}
.faq-item{border-bottom:1px solid var(--line);transition:border-color .2s ease}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:18px;min-height:56px;padding:16px 4px;font-size:16px;font-weight:600;color:var(--text);
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-family:var(--font-mono);font-size:20px;color:var(--accent);
  line-height:1;flex:0 0 auto;transition:transform .2s ease;
}
.faq-item[open] summary::after{content:"−"}
.faq-item summary:hover{color:var(--accent)}
.faq-item[open]{border-left:2px solid var(--accent);padding-left:16px}
.faq-body{padding:0 0 20px;color:var(--muted);font-size:14.5px;line-height:1.9;max-width:760px}

/* ---------- footer ---------- */
.site-footer{
  position:relative;z-index:1;margin-top:0;padding-top:64px;
  background:var(--bg-deep);border-top:1px solid var(--line);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px;padding-bottom:52px}
.footer-brand p{color:var(--muted);font-size:14px;margin-top:16px;max-width:320px;line-height:1.85}
.footer-title{font-size:14px;font-weight:600;letter-spacing:.04em;margin-bottom:16px;color:var(--text)}
.footer-links li{margin-bottom:2px}
.footer-links a{
  display:inline-block;color:var(--muted);font-size:14px;padding:6px 0;position:relative;
  transition:color .2s ease,padding-left .2s ease;
}
.footer-links a::before{
  content:"";position:absolute;left:0;top:50%;width:0;height:12px;background:var(--accent);
  transform:translateY(-50%);transition:width .2s ease;
}
.footer-links a:hover{color:var(--accent);padding-left:12px}
.footer-links a:hover::before{width:2px}
.footer-note{color:var(--muted);font-size:13.5px;line-height:1.85}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);font-family:var(--font-mono);
}

/* ---------- utility ---------- */
.is-hidden{display:none!important}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  :root{--sect:80px}
  .hero-grid{gap:40px}
  .grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:991.98px){
  :root{--sect:72px}
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .nav-cta{display:none}
  .hero{padding:56px 0 52px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-sub{max-width:none}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-2{grid-template-columns:1fr}
  .toc-list{grid-template-columns:1fr;column-gap:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cover-inner{padding:30px 28px}
}
@media (max-width:767.98px){
  :root{--sect:56px}
  body{font-size:15px}
  .wrap{padding:0 18px}
  .nav-inner{height:60px}
  .logo-main{font-size:16px}
  .logo-sub{font-size:10px;padding:2px 6px}
  .hero{padding:44px 0 40px}
  .hero-title{font-size:clamp(26px,7.6vw,34px)}
  .hero-sub{font-size:15.5px;margin-bottom:26px}
  .hero-cta{gap:10px;margin-bottom:26px}
  .btn-e,.btn-o,.btn-text{height:46px;padding:0 18px;font-size:14.5px}
  .btn-text{padding:0}
  .hero-visual{aspect-ratio:4/3}
  .cover-feature{aspect-ratio:4/5}
  .cover-inner{padding:24px 20px}
  .cover-desc{font-size:14px}
  .section-head{margin-bottom:26px}
  .section-desc{font-size:13.5px}
  .grid-3,.grid-2{grid-template-columns:1fr;gap:18px}
  .card-body{padding:18px 18px 20px}
  .card-title{font-size:16.5px}
  .toc-item a{min-height:auto;padding:16px 0}
  .toc-note{font-size:12.5px}
  .cta-band{padding:40px 0}
  .cta-actions{width:100%}
  .cta-actions .btn-e,.cta-actions .btn-o{flex:1 1 auto}
  .faq-item summary{font-size:15.5px}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:520px){
  .tag-row li{font-size:12px;padding:5px 12px}
  .strip{padding:6px 18px 14px}
  .strip-item{padding:11px 18px;font-size:13.5px}
}

/* roulang page: article */
:root{
  --bg-void:#0A0912;
  --bg-deep:#12101F;
  --surface:#191733;
  --surface-2:#221E3D;
  --line:rgba(255,255,255,.08);
  --text:#F2F0FA;
  --muted:#A9A4C7;
  --accent:#35F0C6;
  --accent-2:#FF3D7F;
  --accent-3:#F5C86A;
  --focus:#8A7BFF;
  --radius-card:14px;
  --radius-btn:10px;
  --shadow-card:0 8px 24px rgba(0,0,0,.45);
  --shadow-hover:0 0 0 1px var(--accent),0 12px 32px rgba(53,240,198,.18);
  --container:1200px;
  --sans:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;
  --bs-primary:#35F0C6;
  --bs-body-bg:#0A0912;
  --bs-body-color:#F2F0FA;
  --bs-link-color:#35F0C6;
  --bs-link-hover-color:#79f7db;
  --bs-border-color:rgba(255,255,255,.08);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.9;
  color:var(--text);
  background-color:var(--bg-void);
  background-image:
    radial-gradient(1100px 560px at 84% -12%, rgba(53,240,198,.07), transparent 62%),
    radial-gradient(900px 520px at 2% 6%, rgba(255,61,127,.06), transparent 60%),
    radial-gradient(700px 700px at 50% 120%, rgba(138,123,255,.05), transparent 65%);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--accent);text-decoration:none;}
button{font-family:inherit;}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(53,240,198,.28);color:#fff;}
.wrap{width:100%;max-width:var(--container);margin:0 auto;padding-left:24px;padding-right:24px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(10,9,18,.7);
  border-bottom:1px solid transparent;
  transition:background .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.site-header.is-scrolled{
  background:rgba(10,9,18,.94);
  border-bottom-color:var(--line);
  box-shadow:0 10px 30px rgba(0,0,0,.35);
}
.header-inner{height:72px;display:flex;align-items:center;gap:34px;}
.logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto;}
.logo-mark{
  width:26px;height:26px;flex:0 0 26px;
  background:linear-gradient(135deg,var(--accent) 0%,var(--accent-2) 100%);
  clip-path:polygon(0 0,100% 0,100% 70%,70% 100%,0 100%);
  box-shadow:0 0 20px rgba(53,240,198,.35);
}
.logo-text{display:flex;align-items:baseline;gap:6px;line-height:1;}
.logo-main{font-size:17px;font-weight:800;letter-spacing:-.02em;color:var(--text);}
.logo-sub{
  font-size:11px;font-weight:600;letter-spacing:.14em;color:var(--muted);
  font-family:var(--mono);
}
.nav-links{display:flex;align-items:center;gap:30px;margin-left:auto;}
.nav-link-item{
  position:relative;font-size:15px;color:var(--muted);
  text-decoration:none;padding:8px 0;white-space:nowrap;
  transition:color .2s ease;
}
.nav-link-item::before{
  content:"";position:absolute;left:-11px;top:50%;width:3px;height:3px;
  border-radius:50%;background:var(--accent);transform:translateY(-50%);
  opacity:0;transition:opacity .2s ease;
}
.nav-link-item:hover{color:var(--text);}
.nav-link-item:hover::before,.nav-link-item.active::before{opacity:1;}
.nav-link-item.active{color:var(--text);}
.nav-link-item.active::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--accent);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.icon-btn{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;border:1px solid var(--line);background:transparent;
  color:var(--muted);cursor:pointer;transition:color .2s,border-color .2s,background .2s;
}
.icon-btn:hover{color:var(--accent);border-color:rgba(53,240,198,.45);background:rgba(53,240,198,.07);}
.btn-text-cta{
  display:inline-flex;align-items:center;height:38px;padding:0 18px;
  border-radius:999px;border:1px solid rgba(53,240,198,.42);
  color:var(--accent);font-size:14px;font-weight:600;letter-spacing:.02em;
  transition:background .2s,color .2s,border-color .2s;
}
.btn-text-cta:hover{background:var(--accent);color:#06140f;border-color:var(--accent);}
.menu-toggle{
  display:none;width:40px;height:40px;border-radius:10px;
  border:1px solid var(--line);background:transparent;color:var(--text);
  cursor:pointer;align-items:center;justify-content:center;font-size:17px;
}
.menu-toggle:hover{border-color:rgba(53,240,198,.45);color:var(--accent);}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,340px);z-index:200;
  background:#0F0D1C;border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .32s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;padding:22px;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:20px;border-bottom:1px solid var(--line);}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:transparent;color:var(--muted);font-size:22px;line-height:1;cursor:pointer;}
.drawer-close:hover{color:var(--accent);border-color:rgba(53,240,198,.45);}
.drawer-nav{display:flex;flex-direction:column;padding-top:14px;}
.drawer-nav a{
  color:var(--muted);font-size:16px;padding:16px 4px;border-bottom:1px solid var(--line);
  transition:color .2s,padding-left .2s;
}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--accent);padding-left:10px;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(4,3,10,.68);z-index:190;
  opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s;
}
.drawer-mask.open{opacity:1;visibility:visible;}

/* ---------- breadcrumb ---------- */
.crumbs{padding:24px 0 0;}
.crumb-list{display:flex;flex-wrap:wrap;gap:9px;list-style:none;margin:0;padding:0;font-size:13px;color:var(--muted);}
.crumb-list li{display:flex;align-items:center;gap:9px;max-width:100%;}
.crumb-list li+li::before{content:"/";color:rgba(255,255,255,.22);}
.crumb-list a{color:var(--muted);transition:color .2s;}
.crumb-list a:hover{color:var(--accent);}
.crumb-list li[aria-current] span{color:#CFCAE6;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:52vw;display:inline-block;}

/* ---------- article ---------- */
.article-page{padding-bottom:96px;}
.post-shell{max-width:840px;margin:0 auto;}
.post-head{padding:26px 0 0;}
.post-cat-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:18px;}
.badge-cat{
  display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:600;
  padding:5px 13px;border-radius:999px;letter-spacing:.02em;
  color:var(--accent-2);background:rgba(255,61,127,.1);border:1px solid rgba(255,61,127,.32);
}
.live-chip{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;color:var(--muted);
  font-family:var(--mono);letter-spacing:.04em;
}
.live-dot{
  width:7px;height:7px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 0 4px rgba(53,240,198,.14);
  animation:pulse 2s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.45;transform:scale(.82);}}
.post-title{
  font-size:clamp(26px,3.3vw,38px);
  font-weight:800;letter-spacing:-.02em;line-height:1.28;
  margin:0;color:var(--text);
}
.post-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:16px;
  margin-top:22px;padding:16px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  font-size:13px;color:var(--muted);
}
.meta-item{display:inline-flex;align-items:center;gap:7px;font-family:var(--mono);letter-spacing:.03em;}
.meta-item i{color:rgba(169,164,199,.75);font-size:13px;}
.meta-spacer{margin-left:auto;}
.meta-btn{
  display:inline-flex;align-items:center;gap:7px;height:36px;padding:0 14px;
  border-radius:999px;border:1px solid var(--line);background:transparent;
  color:var(--muted);font-size:13px;cursor:pointer;
  transition:color .2s,border-color .2s,background .2s;
}
.meta-btn:hover{color:var(--accent);border-color:rgba(53,240,198,.45);background:rgba(53,240,198,.07);}
.meta-btn.on{color:var(--accent-3);border-color:rgba(245,200,106,.45);background:rgba(245,200,106,.08);}

.post-body{padding-top:34px;font-size:16.5px;line-height:1.9;color:#DCD8EE;}
.post-body > *:first-child{margin-top:0;}
.post-body p{margin:0 0 1.2em;}
.post-body h2{
  position:relative;font-size:23px;font-weight:800;letter-spacing:-.02em;line-height:1.42;
  color:var(--text);margin:2.2em 0 .9em;padding-left:18px;
}
.post-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:2px;
  background:linear-gradient(180deg,var(--accent),var(--accent-2));
}
.post-body h3{
  position:relative;font-size:18px;font-weight:700;color:var(--text);
  margin:1.8em 0 .7em;padding-left:18px;line-height:1.5;
}
.post-body h3::before{
  content:"";position:absolute;left:2px;top:.6em;width:7px;height:7px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 12px rgba(53,240,198,.6);
}
.post-body h4{font-size:16px;font-weight:700;color:#E6E2F8;margin:1.5em 0 .6em;}
.post-body a{color:var(--accent);border-bottom:1px solid rgba(53,240,198,.35);transition:border-color .2s;}
.post-body a:hover{border-bottom-color:var(--accent);}
.post-body strong{color:#FFFFFF;font-weight:700;}
.post-body ul,.post-body ol{margin:0 0 1.3em;padding-left:1.45em;}
.post-body li{margin:.5em 0;}
.post-body ul li::marker{color:var(--accent);}
.post-body ol li::marker{color:var(--accent-2);font-family:var(--mono);font-weight:700;}
.post-body blockquote{
  margin:1.7em 0;padding:20px 24px;border-left:3px solid var(--accent);
  background:linear-gradient(90deg,rgba(53,240,198,.07),rgba(53,240,198,0));
  border-radius:0 12px 12px 0;color:#CFCAE6;font-size:16px;
}
.post-body blockquote p:last-child{margin-bottom:0;}
.post-body img{border-radius:14px;border:1px solid var(--line);margin:1.7em auto;}
.post-body figure{margin:1.7em 0;}
.post-body figcaption,.post-body .wp-caption-text{
  text-align:center;font-size:13px;color:var(--muted);margin-top:10px;line-height:1.7;
}
.post-body table{
  width:100%;border-collapse:collapse;margin:1.7em 0;font-size:15px;
  border:1px solid var(--line);border-radius:12px;overflow:hidden;
}
.post-body th,.post-body td{border:1px solid var(--line);padding:11px 15px;text-align:left;}
.post-body th{background:var(--surface-2);color:var(--text);font-weight:700;}
.post-body tbody tr:nth-child(even) td{background:rgba(255,255,255,.02);}
.post-body hr{border:0;height:1px;background:var(--line);margin:2.6em 0;}
.post-body code{
  font-family:var(--mono);font-size:.9em;background:var(--surface-2);
  color:var(--accent);padding:2px 7px;border-radius:6px;
}
.post-body pre{
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  padding:18px;overflow-x:auto;font-size:14px;line-height:1.7;margin:1.7em 0;
}
.post-body pre code{background:none;padding:0;color:#DCD8EE;}

.empty-state{
  margin:36px auto;max-width:520px;text-align:center;padding:44px 28px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
}
.empty-state i{font-size:30px;color:var(--accent-2);display:block;margin-bottom:16px;}
.empty-state p{margin:0 0 18px;color:var(--muted);font-size:15px;}
.empty-state a{
  display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 22px;
  border-radius:var(--radius-btn);background:var(--accent);color:#06140f;font-weight:700;font-size:14px;
  transition:transform .2s,box-shadow .2s,filter .2s;
}
.empty-state a:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 0 0 1px var(--accent),0 10px 26px rgba(53,240,198,.24);}

/* ---------- tags ---------- */
.post-tags{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:40px;padding-top:22px;border-top:1px solid var(--line);
}
.tag-label{font-size:13px;color:var(--muted);font-family:var(--mono);letter-spacing:.06em;margin-right:4px;}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 15px;border-radius:999px;
  font-size:13px;color:#CFCAE6;background:var(--surface);border:1px solid var(--line);
  transition:color .2s,border-color .2s,background .2s;
}
.tag:hover{color:var(--accent);border-color:rgba(53,240,198,.45);background:var(--surface-2);}

/* ---------- action strip ---------- */
.action-strip{
  position:relative;overflow:hidden;
  margin-top:34px;padding:26px 28px;border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:
    radial-gradient(circle at 12% 20%, rgba(53,240,198,.10), transparent 42%),
    radial-gradient(circle at 88% 84%, rgba(255,61,127,.10), transparent 46%),
    var(--surface);
  display:flex;flex-wrap:wrap;align-items:center;gap:18px;
}
.action-strip::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.06;
  background-image:radial-gradient(rgba(255,255,255,.9) 1px, transparent 1px);
  background-size:14px 14px;
}
.action-strip .strip-text{position:relative;z-index:1;}
.action-strip .strip-text strong{display:block;font-size:16px;font-weight:700;color:var(--text);}
.action-strip .strip-text span{font-size:13px;color:var(--muted);}
.strip-actions{position:relative;z-index:1;display:flex;gap:12px;margin-left:auto;flex-wrap:wrap;}
.btn-primary-x{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 24px;
  border-radius:var(--radius-btn);border:0;cursor:pointer;
  background:var(--accent);color:#06140f;font-size:14.5px;font-weight:700;
  transition:transform .2s,box-shadow .2s,filter .2s;
}
.btn-primary-x:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 0 0 1px var(--accent),0 12px 30px rgba(53,240,198,.25);}
.btn-primary-x:active{transform:translateY(0);box-shadow:none;}
.btn-ghost-x{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 22px;
  border-radius:var(--radius-btn);cursor:pointer;
  background:transparent;border:1px solid var(--line);color:var(--text);
  font-size:14.5px;font-weight:600;
  transition:background .2s,border-color .2s,color .2s;
}
.btn-ghost-x:hover{background:var(--surface-2);border-color:rgba(255,255,255,.2);color:var(--accent);}

/* ---------- related ---------- */
.section{margin-top:96px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:34px;}
.section-eyebrow{
  display:block;font-family:var(--mono);font-size:12.5px;letter-spacing:.2em;
  color:var(--accent);text-transform:uppercase;margin-bottom:12px;
}
.section-title{font-size:clamp(21px,2.4vw,27px);font-weight:800;letter-spacing:-.02em;margin:0;color:var(--text);}
.section-sub{margin:10px 0 0;font-size:14px;color:var(--muted);max-width:560px;}
.text-link{
  font-size:14px;color:var(--accent);white-space:nowrap;position:relative;padding-bottom:3px;
}
.text-link::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:100%;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .28s ease;
}
.text-link:hover::after{transform:scaleX(1);}

.rec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.rec-card{
  display:flex;flex-direction:column;overflow:hidden;text-decoration:none;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  transition:border-color .25s,box-shadow .25s,transform .25s;
}
.rec-card:hover{border-color:rgba(53,240,198,.5);box-shadow:var(--shadow-hover);transform:translateY(-3px);}
.rec-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--surface-2);}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.rec-card:hover .rec-thumb img{transform:scale(1.03);}
.rec-body{padding:20px 22px 24px;}
.rec-cat{
  display:inline-block;font-size:11.5px;font-weight:600;letter-spacing:.06em;
  color:var(--accent-2);font-family:var(--mono);margin-bottom:10px;
}
.rec-card h3{
  font-size:16.5px;font-weight:700;line-height:1.5;margin:0 0 10px;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s;
}
.rec-card:hover h3{color:var(--accent);}
.rec-card p{
  font-size:13.5px;line-height:1.8;color:var(--muted);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}

/* ---------- article footer nav ---------- */
.post-foot{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  margin-top:44px;padding-top:24px;border-top:1px solid var(--line);
  font-size:14px;
}
.post-foot a{color:var(--muted);display:inline-flex;align-items:center;gap:9px;transition:color .2s;}
.post-foot a:hover{color:var(--accent);}
.post-foot .back-home{color:var(--accent);}

/* ---------- footer ---------- */
.site-footer{
  margin-top:96px;border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(18,16,31,.5),rgba(10,9,18,.95));
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;
  gap:40px;padding:64px 0 44px;
}
.footer-col{min-width:0;}
.footer-brand p{margin:18px 0 0;font-size:13.5px;line-height:1.85;color:var(--muted);max-width:320px;}
.footer-title{
  font-size:14px;font-weight:600;color:var(--text);margin:0 0 18px;letter-spacing:.02em;
}
.footer-links{list-style:none;margin:0;padding:0;}
.footer-links li{margin-bottom:12px;}
.footer-links a{
  position:relative;font-size:13.5px;color:var(--muted);padding-left:0;
  transition:color .2s,padding-left .2s;
}
.footer-links a::before{
  content:"";position:absolute;left:0;top:50%;width:2px;height:0;
  background:var(--accent);transform:translateY(-50%);transition:height .2s;
}
.footer-links a:hover{color:var(--accent);padding-left:10px;}
.footer-links a:hover::before{height:14px;}
.footer-note{font-size:13.5px;line-height:1.85;color:var(--muted);margin:0;}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding:22px 0 30px;border-top:1px solid var(--line);
  font-size:12.5px;color:rgba(169,164,199,.75);font-family:var(--mono);letter-spacing:.02em;
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .footer-col:last-child{grid-column:1 / -1;}
}
@media (max-width:991px){
  .header-inner{height:60px;gap:16px;}
  .site-header{height:60px;}
  .nav-links{display:none;}
  .menu-toggle{display:inline-flex;}
  .btn-text-cta{display:none;}
  .rec-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;padding:48px 0 36px;}
  .footer-col:last-child{grid-column:1 / -1;}
  .section{margin-top:72px;}
  .article-page{padding-bottom:72px;}
}
@media (max-width:767px){
  body{font-size:16px;line-height:1.85;}
  .wrap{padding-left:18px;padding-right:18px;}
  .logo-main{font-size:16px;}
  .logo-sub{font-size:10px;letter-spacing:.1em;}
  .crumb-list li[aria-current] span{max-width:40vw;}
  .post-title{font-size:24px;}
  .post-body{font-size:16px;padding-top:26px;}
  .post-body h2{font-size:20px;padding-left:15px;}
  .post-body h3{font-size:17px;padding-left:15px;}
  .post-meta{gap:12px;font-size:12.5px;}
  .meta-spacer{margin-left:0;width:100%;}
  .rec-grid{grid-template-columns:1fr;}
  .action-strip{padding:22px 20px;}
  .strip-actions{margin-left:0;width:100%;}
  .strip-actions .btn-primary-x,.strip-actions .btn-ghost-x{flex:1 1 140px;justify-content:center;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .section{margin-top:56px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:26px;}
  .post-foot{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .post-meta{gap:10px;}
  .meta-btn{height:34px;padding:0 12px;font-size:12.5px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root{
  --bg-void:#0A0912;
  --bg-deep:#12101F;
  --surface:#191733;
  --surface-2:#221E3D;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.18);
  --text:#F2F0FA;
  --muted:#A9A4C7;
  --accent:#35F0C6;
  --accent-2:#FF3D7F;
  --accent-3:#F5C86A;
  --focus:#8A7BFF;
  --radius:14px;
  --radius-sm:10px;
  --shadow-1:0 8px 24px rgba(0,0,0,.45);
  --shadow-2:0 0 0 1px var(--accent),0 12px 32px rgba(53,240,198,.18);
  --maxw:1200px;
  --font-sans:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;

  --bs-primary:#35F0C6;
  --bs-body-bg:#0A0912;
  --bs-body-color:#F2F0FA;
  --bs-link-color:#F2F0FA;
  --bs-link-hover-color:#35F0C6;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-font-sans-serif:var(--font-sans);
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background-color:var(--bg-void);
  background-image:
    linear-gradient(28deg,rgba(53,240,198,.045) 0 1px,transparent 1px 100%),
    radial-gradient(900px 520px at 82% -8%,rgba(255,61,127,.10),transparent 62%),
    radial-gradient(760px 460px at 8% 4%,rgba(53,240,198,.08),transparent 60%);
  background-size:160px 160px,auto,auto;
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  position:relative;
}
body::after{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.055;
  background-image:radial-gradient(rgba(255,255,255,.95) 1px,transparent 1px);
  background-size:26px 26px;
}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.25}
h1{font-size:clamp(28px,3.6vw,44px)}
h2{font-size:clamp(22px,2.5vw,32px)}
h3{font-size:19px}
p{margin:0}
a{color:inherit;text-decoration:none;transition:color .22s ease}
a:hover{color:var(--accent)}
img{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:8px}
::selection{background:rgba(53,240,198,.28);color:#fff}

.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;position:relative;z-index:1}
.mono{font-family:var(--font-mono)}

/* ============ 顶部实时条 ============ */
.live-strip{
  border-bottom:1px solid var(--line);
  background:linear-gradient(90deg,rgba(53,240,198,.06),rgba(255,61,127,.06));
  font-size:13px;color:var(--muted);
}
.live-inner{display:flex;align-items:center;gap:10px;min-height:38px;flex-wrap:wrap}
.live-dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(53,240,198,.14);animation:pulse 2.2s ease-in-out infinite;flex:none}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.82)}}
.live-text{color:var(--text);opacity:.85}
.live-meta{margin-left:auto;font-family:var(--font-mono);letter-spacing:.04em}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(10,9,18,.72);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-stuck{
  background:rgba(10,9,18,.94);
  border-bottom-color:var(--line);
  box-shadow:0 10px 30px rgba(0,0,0,.45);
}
.nav-bar{display:flex;align-items:center;gap:26px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:11px;flex:none}
.logo{display:inline-flex;align-items:center;gap:11px}
.logo-mark{
  width:26px;height:26px;flex:none;border-radius:8px;
  background:linear-gradient(135deg,var(--accent),rgba(53,240,198,.15) 55%,var(--accent-2));
  position:relative;box-shadow:0 0 18px rgba(53,240,198,.35);
}
.logo-mark::after{
  content:"";position:absolute;inset:7px;border-radius:50%;
  background:var(--bg-void);box-shadow:inset 0 0 0 2px rgba(10,9,18,.6);
}
.logo-text{display:flex;flex-direction:column;line-height:1.05}
.logo-main{font-size:17px;font-weight:800;letter-spacing:.02em;color:var(--text)}
.logo-sub{font-size:11px;letter-spacing:.28em;color:var(--muted);font-family:var(--font-mono)}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:14px}
.nav-link-item{position:relative;font-size:15px;color:var(--muted);padding:6px 2px;white-space:nowrap}
.nav-link-item:hover{color:var(--text)}
.nav-link-item.active{color:var(--text);font-weight:600}
.nav-link-item.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;background:var(--accent);
}
.nav-link-item.active::before{
  content:"";position:absolute;left:-11px;top:50%;width:4px;height:4px;border-radius:50%;
  background:var(--accent);transform:translateY(-50%);
}
.nav-tools{display:flex;align-items:center;gap:10px;margin-left:auto}
.icon-btn{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--radius-sm);border:1px solid transparent;color:var(--muted);
  transition:color .2s,border-color .2s,background .2s;
}
.icon-btn:hover{color:var(--accent);border-color:var(--line);background:var(--surface)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:44px;padding:11px 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;line-height:1.2;border:1px solid transparent;
  transition:background .22s,color .22s,border-color .22s,transform .18s,box-shadow .22s;
  cursor:pointer;text-align:center;
}
.btn i{font-size:14px}
.btn-main{background:var(--accent);color:#06120F}
.btn-main:hover{background:#4bf7d2;color:#06120F;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(53,240,198,.5),0 10px 26px rgba(53,240,198,.22)}
.btn-main:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn-ghost:hover{background:var(--surface-2);border-color:var(--line-strong);color:var(--text);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{min-height:40px;padding:9px 18px;font-size:14px}
.text-link{position:relative;display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--accent);font-size:14.5px}
.text-link::after{content:"";position:absolute;left:0;bottom:-4px;height:1px;width:0;background:var(--accent);transition:width .28s ease}
.text-link:hover::after{width:100%}
.nav-toggle{display:none;width:44px;height:44px;border-radius:var(--radius-sm);border:1px solid var(--line);color:var(--text)}
.nav-toggle:hover{color:var(--accent);border-color:var(--accent)}

/* 抽屉 */
.drawer-mask{position:fixed;inset:0;z-index:110;background:rgba(5,4,11,.66);opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:120;width:min(360px,88vw);
  background:var(--bg-deep);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .3s cubic-bezier(.4,0,.2,1);
  padding:22px;display:flex;flex-direction:column;gap:6px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:12px}
.drawer-nav{display:flex;flex-direction:column;gap:2px}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  min-height:52px;padding:0 12px;border-radius:var(--radius-sm);color:var(--muted);font-size:16px;
  border-left:2px solid transparent;transition:.2s;
}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--text);background:var(--surface);border-left-color:var(--accent)}
.drawer-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
body.nav-open{overflow:hidden}

/* ============ 分类 Hero ============ */
.cat-hero{
  position:relative;min-height:250px;display:flex;align-items:flex-end;
  padding:70px 0 34px;overflow:hidden;
  background:#12101F url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(10,9,18,.88) 0%,rgba(10,9,18,.93) 58%,var(--bg-void) 100%),
    linear-gradient(96deg,rgba(10,9,18,.92),rgba(34,30,61,.5));
}
.cat-hero::after{
  content:"";position:absolute;right:-60px;top:-40px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(53,240,198,.16),transparent 65%);pointer-events:none;
}
.cat-hero .wrap{position:relative;z-index:1}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--muted);margin-bottom:16px}
.crumb li{display:inline-flex;align-items:center;gap:10px}
.crumb li+li::before{content:"/";color:rgba(255,255,255,.22)}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--accent)}
.crumb .current{color:var(--text)}
.cat-hero h1{margin-bottom:14px}
.cat-hero-lead{max-width:660px;color:var(--muted);font-size:16.5px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.badge-soft{
  display:inline-flex;align-items:center;gap:7px;border-radius:999px;padding:5px 13px;
  font-size:12.5px;color:var(--muted);border:1px solid var(--line);background:rgba(255,255,255,.03);
  font-family:var(--font-mono);letter-spacing:.02em;
}
.badge-soft i{color:var(--accent);font-size:11px}
.badge-solid{color:var(--accent);border-color:rgba(53,240,198,.35);background:rgba(53,240,198,.08)}
.badge-pink{color:var(--accent-2);border-color:rgba(255,61,127,.35);background:rgba(255,61,127,.08)}
.badge-gold{color:var(--accent-3);border-color:rgba(245,200,106,.32);background:rgba(245,200,106,.08)}

/* ============ 通用板块 ============ */
main{position:relative;z-index:1}
.section{padding:48px 0}
.section-alt{
  background:linear-gradient(180deg,rgba(18,16,31,.85),rgba(10,9,18,0) 88%);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:32px}
.eyebrow{
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.24em;text-transform:uppercase;
  color:var(--accent);margin-bottom:12px;display:block;
}
.section-head p.sub{color:var(--muted);font-size:15px;margin-top:10px;max-width:640px}

/* ============ 数据条 ============ */
.stat-row{
  display:grid;grid-template-columns:repeat(4,1fr);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:rgba(25,23,51,.55);
}
.stat{padding:26px 22px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat-num{font-family:var(--font-mono);font-size:30px;font-weight:700;color:var(--text);line-height:1.1}
.stat-num span{font-size:14px;color:var(--accent);margin-left:4px}
.stat-label{font-size:13px;color:var(--muted);margin-top:6px}
.progress-wrap{margin-top:22px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.progress-line{flex:1;min-width:180px;height:4px;border-radius:999px;background:var(--surface-2);overflow:hidden}
.progress-line i{display:block;height:100%;width:62%;border-radius:999px;background:linear-gradient(90deg,var(--accent),var(--accent-2))}
.progress-label{font-size:13px;color:var(--muted);font-family:var(--font-mono)}

/* ============ 大卡网格（双列） ============ */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.big-card{
  position:relative;display:flex;flex-direction:column;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-1);transition:border-color .25s,box-shadow .25s,transform .25s;
}
.big-card:hover{border-color:var(--accent);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.big-card .corner{
  position:absolute;top:0;right:0;width:0;height:0;z-index:3;
  border-style:solid;border-width:0 16px 16px 0;
  border-color:transparent var(--bg-void) transparent transparent;
  filter:drop-shadow(-1px 1px 0 rgba(255,255,255,.06));
}
.thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,#191733,#221E3D)}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .55s cubic-bezier(.2,.7,.3,1)}
.big-card:hover .thumb img{transform:scale(1.03)}
.thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,9,18,0) 40%,rgba(10,9,18,.62) 100%)}
.card-body{padding:22px 22px 20px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-badges{display:flex;flex-wrap:wrap;gap:8px}
.card-title{font-size:20px}
.card-title a{display:block}
.big-card:hover .card-title a{color:var(--accent)}
.card-text{color:var(--muted);font-size:15px;line-height:1.85;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
}
.meta-left{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--muted);font-family:var(--font-mono)}
.meta-left i{color:var(--accent);margin-right:5px;font-size:12px}
.meta-actions{display:flex;gap:6px}
.act-btn{
  width:36px;height:36px;border-radius:9px;border:1px solid var(--line);color:var(--muted);
  display:inline-flex;align-items:center;justify-content:center;transition:.2s;font-size:13px;
}
.act-btn:hover{color:var(--accent);border-color:var(--accent);background:rgba(53,240,198,.07)}
.act-btn.is-saved{color:var(--accent-3);border-color:rgba(245,200,106,.45);background:rgba(245,200,106,.08)}

/* ============ 三步流程 ============ */
.step-card{
  position:relative;padding:28px 24px 26px;border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(34,30,61,.75),rgba(25,23,51,.55));
  transition:border-color .25s,transform .25s;
}
.step-card:hover{border-color:rgba(53,240,198,.45);transform:translateY(-2px)}
.step-num{font-family:var(--font-mono);font-size:12.5px;letter-spacing:.2em;color:var(--accent);display:block;margin-bottom:14px}
.step-card h3{font-size:18px;margin-bottom:10px}
.step-card p{color:var(--muted);font-size:15px}
.step-card .step-icon{
  position:absolute;top:24px;right:22px;color:rgba(255,255,255,.12);font-size:22px;
}

/* ============ 相关分类 ============ */
.cat-card{
  position:relative;display:flex;flex-direction:column;gap:14px;
  padding:24px;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--surface);transition:border-color .25s,box-shadow .25s,transform .25s;
}
.cat-card:hover{border-color:var(--accent);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.cat-card .cat-cover{aspect-ratio:16/9;border-radius:10px;overflow:hidden;background:var(--surface-2)}
.cat-card .cat-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.cat-card:hover .cat-cover img{transform:scale(1.03)}
.cat-card h3{font-size:18px}
.cat-card p{color:var(--muted);font-size:14.5px}
.cat-card .cat-more{font-family:var(--font-mono);font-size:13px;color:var(--accent);display:inline-flex;align-items:center;gap:8px}
.cat-card:hover h3{color:var(--accent)}

/* ============ FAQ ============ */
.faq-list{max-width:920px}
.faq-item{
  border:1px solid var(--line);border-radius:12px;background:rgba(25,23,51,.62);
  margin-bottom:12px;overflow:hidden;transition:border-color .25s,background .25s;
}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item[open]{border-color:rgba(53,240,198,.4);background:rgba(25,23,51,.9)}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  display:flex;align-items:center;min-height:56px;padding:16px 62px 16px 22px;
  font-weight:600;font-size:16px;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-family:var(--font-mono);font-size:20px;color:var(--accent);line-height:1;
}
.faq-item[open] summary::after{content:"−"}
.faq-item[open] summary{color:var(--accent)}
.faq-body{position:relative;padding:0 26px 22px 26px;color:var(--muted);font-size:15.5px}
.faq-body::before{content:"";position:absolute;left:22px;top:2px;bottom:20px;width:2px;background:var(--accent);border-radius:2px}

/* ============ CTA 通栏 ============ */
.cta-band{
  position:relative;overflow:hidden;border:1px solid var(--line);border-radius:18px;
  padding:38px 36px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  background-color:#171432;
  background-image:radial-gradient(rgba(255,255,255,.13) 1px,transparent 1px),
                   radial-gradient(600px 240px at 88% 12%,rgba(255,61,127,.18),transparent 60%),
                   radial-gradient(520px 220px at 6% 90%,rgba(53,240,198,.16),transparent 62%);
  background-size:18px 18px,auto,auto;
}
.cta-band h2{font-size:clamp(20px,2.2vw,26px);margin-bottom:10px}
.cta-band p{color:var(--muted);font-size:15px;max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;z-index:1;margin-top:48px;padding:64px 0 0;
  border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(18,16,31,.9),rgba(10,9,18,1));
}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand p{color:var(--muted);font-size:14.5px;margin-top:16px;max-width:330px}
.footer-title{font-size:14px;font-weight:600;letter-spacing:.04em;margin-bottom:16px;color:var(--text)}
.footer-links{display:grid;gap:10px}
.footer-links a{
  position:relative;display:inline-block;padding-left:0;color:var(--muted);font-size:14px;
  transition:color .2s,padding-left .2s;
}
.footer-links a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:0;height:2px;border-radius:2px;background:var(--accent);transition:width .2s;
}
.footer-links a:hover{color:var(--accent);padding-left:12px}
.footer-links a:hover::before{width:8px}
.footer-note{color:var(--muted);font-size:14px}
.footer-bottom{
  margin-top:44px;padding:20px 0;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);font-family:var(--font-mono);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .nav-links{gap:20px}
  .stat-num{font-size:26px}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:28px}
  .footer-grid .footer-col:last-child{grid-column:1 / -1}
}
@media (max-width:991px){
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .grid-3{grid-template-columns:1fr 1fr}
  .stat-row{grid-template-columns:1fr 1fr}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .footer-grid .footer-col:last-child{grid-column:auto}
}
@media (max-width:767px){
  body{font-size:16px}
  .wrap{padding:0 18px}
  .live-strip{font-size:12px}
  .live-meta{margin-left:0;width:100%;padding-bottom:6px}
  .nav-bar{min-height:60px}
  .section{padding:28px 0}
  .grid-2,.grid-3{grid-template-columns:1fr}
  .cat-hero{min-height:220px;padding:56px 0 28px}
  .cat-hero-lead{font-size:15.5px}
  .cta-band{padding:26px 20px;border-radius:14px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;font-size:12.5px}
  .stat-row{grid-template-columns:1fr}
  .stat{border-right:0;border-bottom:1px solid var(--line)}
  .stat:last-child{border-bottom:0}
  .drawer{width:100%;border-left:0}
  .faq-item summary{font-size:15.5px;padding-right:54px}
}
@media (max-width:520px){
  h1{font-size:26px}
  .card-body{padding:18px 16px 16px}
  .card-title{font-size:18px}
  .meta-left{gap:10px}
}

/* roulang page: category2 */
:root{
  --bg-void:#0A0912;
  --bg-deep:#12101F;
  --surface:#191733;
  --surface-2:#221E3D;
  --line:rgba(255,255,255,.08);
  --text:#F2F0FA;
  --muted:#A9A4C7;
  --accent:#35F0C6;
  --accent-2:#FF3D7F;
  --accent-3:#F5C86A;
  --focus:#8A7BFF;
  --radius-card:14px;
  --radius-btn:10px;
  --mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;
  --shadow-card:0 8px 24px rgba(0,0,0,.45);
  --shadow-hover:0 0 0 1px var(--accent),0 12px 32px rgba(53,240,198,.18);
  --bs-primary:#35F0C6;
  --bs-body-bg:#0A0912;
  --bs-body-color:#F2F0FA;
  --bs-link-color:#35F0C6;
  --bs-link-hover-color:#8CF7E0;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background-color:var(--bg-void);
  background-image:
    radial-gradient(1100px 560px at 80% -8%,rgba(53,240,198,.09),transparent 62%),
    radial-gradient(880px 480px at 4% 14%,rgba(255,61,127,.07),transparent 64%),
    repeating-linear-gradient(28deg,rgba(255,255,255,.026) 0 1px,transparent 1px 98px);
  background-attachment:fixed;
  color:var(--text);
  font-family:var(--bs-font-sans-serif);
  font-size:16.5px;
  line-height:1.85;
  overflow-x:hidden;
}
h1,h2,h3,h4{font-weight:800;letter-spacing:-.02em;line-height:1.25;margin:0}
p{margin:0}
a{color:var(--accent);text-decoration:none}
img{max-width:100%;display:block}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:3px solid var(--focus);outline-offset:3px;border-radius:4px}
::selection{background:rgba(53,240,198,.3);color:#fff}

.wrap{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
.section{padding:96px 0}
.mono{font-family:var(--mono)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(10,9,18,.72);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{
  background:rgba(10,9,18,.94);
  border-bottom-color:var(--line);
}
.header-inner{height:72px;display:flex;align-items:center;gap:26px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text);text-decoration:none;flex:0 0 auto}
.logo-mark{
  width:22px;height:22px;border-radius:6px;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  box-shadow:0 0 14px rgba(53,240,198,.35);
  position:relative;flex:0 0 auto;
}
.logo-mark::after{
  content:"";position:absolute;inset:5px 5px auto auto;width:5px;height:5px;border-radius:50%;
  background:rgba(10,9,18,.85);
}
.logo-text{display:flex;flex-direction:column;line-height:1.06}
.logo-main{font-size:17px;font-weight:800;letter-spacing:-.02em}
.logo-sub{font-size:10.5px;letter-spacing:.3em;color:var(--muted);font-family:var(--mono)}

.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-link-item{
  position:relative;display:inline-flex;align-items:center;
  color:var(--muted);font-size:15px;padding:8px 0;
  transition:color .2s ease;
}
.nav-link-item::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;border-radius:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease,background .2s ease;
}
.nav-link-item:hover{color:var(--text)}
.nav-link-item:hover::after{transform:scaleX(1);background:rgba(53,240,198,.5)}
.nav-link-item.active{color:var(--text)}
.nav-link-item.active::after{transform:scaleX(1)}
.nav-link-item.active::before{
  content:"";position:absolute;left:-11px;top:50%;width:3px;height:3px;border-radius:50%;
  background:var(--accent);transform:translateY(-50%);
}
.drawer-brand{display:none}

.header-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:transparent;border-radius:10px;color:var(--muted);
  transition:color .2s,border-color .2s,background .2s;cursor:pointer;
}
.icon-btn:hover{color:var(--accent);border-color:rgba(53,240,198,.4);background:var(--surface)}
.icon-btn svg{width:17px;height:17px}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  background:transparent;color:var(--text);cursor:pointer;padding:0;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:1.5px;background:currentColor;border-radius:2px;transition:transform .25s ease}
body.drawer-open .nav-toggle span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
body.drawer-open .nav-toggle span:nth-child(2){opacity:0}
body.drawer-open .nav-toggle span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}

/* ---------- 按钮 ---------- */
.btn-main,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;font-size:15px;font-weight:700;
  border-radius:var(--radius-btn);cursor:pointer;
  transition:transform .18s ease,background .2s ease,box-shadow .2s ease,border-color .2s,color .2s;
}
.btn-main{background:var(--accent);color:#06110D;border:0}
.btn-main:hover{background:#55F4D3;color:#06110D;transform:translateY(-1px);box-shadow:0 0 0 1px var(--accent),0 12px 32px rgba(53,240,198,.18)}
.btn-main:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--text);border-radius:999px}
.btn-ghost:hover{background:var(--surface-2);border-color:rgba(53,240,198,.42);color:var(--text)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{padding:9px 18px;font-size:14px;min-height:40px}
.link-arrow{
  position:relative;color:var(--accent);font-size:14.5px;font-weight:600;
  padding-bottom:2px;white-space:nowrap;
}
.link-arrow::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:100%;
  background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.link-arrow:hover::after{transform:scaleX(1)}

/* ---------- 徽章与标签 ---------- */
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 11px;border-radius:999px;font-size:12px;line-height:1.7;
  border:1px solid var(--line);color:var(--muted);background:rgba(255,255,255,.02);
  font-family:var(--mono);letter-spacing:.04em;
}
.badge-accent{color:var(--accent);border-color:rgba(53,240,198,.34);background:rgba(53,240,198,.08)}
.badge-pink{color:var(--accent-2);border-color:rgba(255,61,127,.34);background:rgba(255,61,127,.08)}
.badge-gold{color:var(--accent-3);border-color:rgba(245,200,106,.32);background:rgba(245,200,106,.07)}
.eyebrow{
  font-family:var(--mono);font-size:12px;letter-spacing:.26em;text-transform:uppercase;
  color:var(--accent);margin-bottom:12px;
}

/* ---------- 分类 Hero ---------- */
.cat-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);background:var(--bg-deep)}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center 28%;
  opacity:.5;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(10,9,18,.95) 0%,rgba(10,9,18,.8) 48%,rgba(18,16,31,.56) 100%),
    radial-gradient(620px 220px at 88% 122%,rgba(53,240,198,.16),transparent 72%);
}
.cat-hero-inner{
  position:relative;z-index:2;
  min-height:248px;padding:56px 24px 52px;
  display:flex;flex-direction:column;justify-content:center;gap:14px;
}
.cat-title{font-size:clamp(30px,4vw,46px);letter-spacing:-.03em}
.cat-lead{color:var(--muted);font-size:16px;max-width:640px;line-height:1.85}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:8px}

/* ---------- 板块标题 ---------- */
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:28px;
  margin-bottom:38px;flex-wrap:wrap;
}
.sec-title{font-size:clamp(22px,2.6vw,30px)}
.sec-sub{color:var(--muted);font-size:15px;margin-top:8px;max-width:660px}
.sec-head .eyebrow{margin-bottom:8px}

/* ---------- 阶段时间轴 + 三列卡网格 ---------- */
.guide-layout{display:grid;grid-template-columns:236px minmax(0,1fr);gap:32px;align-items:start}
.timeline{position:sticky;top:104px;padding-right:4px}
.tl-item{position:relative;padding:0 0 26px 22px;border-left:1px solid var(--line)}
.tl-item:last-child{border-left-color:transparent;padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-5px;top:6px;width:9px;height:9px;border-radius:50%;
  background:var(--bg-void);border:1px solid rgba(53,240,198,.55);
  transition:background .25s,box-shadow .25s,border-color .25s;
}
.tl-item.is-current::before{background:var(--accent);border-color:var(--accent);box-shadow:0 0 12px rgba(53,240,198,.6)}
.tl-step{font-family:var(--mono);font-size:12px;letter-spacing:.14em;color:var(--accent-3)}
.tl-title{font-size:14.5px;font-weight:700;margin:3px 0 5px;color:var(--text);letter-spacing:-.01em}
.tl-desc{font-size:13px;color:var(--muted);line-height:1.7}

.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.g-card{
  position:relative;display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:border-color .25s ease,box-shadow .25s ease,transform .25s ease;
}
.g-card:hover{border-color:var(--accent);box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-deep)}
.thumb::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(circle at 30% 50%,rgba(255,255,255,.14) 2px,transparent 2px),
    radial-gradient(circle at 50% 50%,rgba(255,255,255,.1) 2px,transparent 2px),
    radial-gradient(circle at 70% 50%,rgba(255,255,255,.08) 2px,transparent 2px);
  background-size:100% 100%;
  animation:twinkle 1.8s ease-in-out infinite alternate;
}
@keyframes twinkle{from{opacity:.35}to{opacity:.85}}
.thumb img{
  position:relative;width:100%;height:100%;object-fit:cover;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 12px),calc(100% - 12px) 100%,0 100%);
  transition:transform .45s ease;
}
.g-card:hover .thumb img{transform:scale(1.03)}
.g-body{padding:18px 18px 16px;display:flex;flex-direction:column;gap:10px;flex:1}
.g-badges{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.g-time{font-family:var(--mono);font-size:12px;color:var(--muted)}
.g-title{font-size:17px;letter-spacing:-.01em;line-height:1.45}
.g-title a{color:var(--text);transition:color .2s}
.g-title a:hover{color:var(--accent)}
.g-desc{font-size:14px;color:var(--muted);line-height:1.8;flex:1}
.g-foot{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  border-top:1px solid var(--line);padding-top:12px;margin-top:2px;
}
.g-tag{font-size:12.5px;color:var(--muted);font-family:var(--mono)}
.g-ico{color:var(--accent-3);font-size:13px}

.pager{display:flex;align-items:center;justify-content:center;gap:10px;margin-top:44px;flex-wrap:wrap}
.pager a,.pager span{
  width:40px;height:40px;display:grid;place-items:center;
  border:1px solid var(--line);border-radius:10px;
  color:var(--muted);font-family:var(--mono);font-size:13.5px;
  transition:border-color .2s,color .2s,background .2s;
}
.pager a:hover{border-color:var(--accent);color:var(--accent)}
.pager .is-active{background:var(--accent);border-color:var(--accent);color:#06110D;font-weight:700}

/* ---------- 三步路径 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.step{
  position:relative;padding:28px 24px 26px;
  background:linear-gradient(180deg,var(--surface),rgba(25,23,51,.55));
  border:1px solid var(--line);border-radius:var(--radius-card);
  transition:border-color .25s,box-shadow .25s,transform .25s;
}
.step:hover{border-color:rgba(53,240,198,.45);box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.step-num{font-family:var(--mono);font-size:26px;color:var(--accent);line-height:1;margin-bottom:14px}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14px;color:var(--muted);line-height:1.85}

/* ---------- 速查列表 ---------- */
.quick-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 44px;border-top:1px solid var(--line)}
.quick-item{display:flex;gap:16px;padding:20px 0;border-bottom:1px solid var(--line)}
.quick-key{
  flex:0 0 68px;font-family:var(--mono);font-size:12.5px;letter-spacing:.08em;
  color:var(--accent-2);padding-top:3px;
}
.quick-body h3{font-size:15.5px;margin-bottom:4px}
.quick-body p{font-size:14px;color:var(--muted);line-height:1.8}

/* ---------- 相关分区 ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.rel-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  color:var(--text);text-decoration:none;box-shadow:var(--shadow-card);
  transition:border-color .25s,box-shadow .25s,transform .25s;
}
.rel-card:hover{border-color:var(--accent);box-shadow:var(--shadow-hover);transform:translateY(-2px);color:var(--text)}
.rel-card img{width:100%;aspect-ratio:16/9;object-fit:cover;opacity:.85;transition:opacity .25s}
.rel-card:hover img{opacity:1}
.rel-body{padding:18px;display:flex;flex-direction:column;gap:8px;flex:1}
.rel-body h3{font-size:16.5px}
.rel-body p{font-size:14px;color:var(--muted);line-height:1.8;flex:1}
.rel-more{font-family:var(--mono);font-size:12.5px;color:var(--accent);letter-spacing:.04em}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  position:relative;list-style:none;cursor:pointer;
  padding:20px 46px 20px 18px;font-size:16.5px;font-weight:600;color:var(--text);
  transition:color .2s;min-height:56px;display:flex;align-items:center;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:2px;border-radius:2px;
  background:var(--accent);opacity:0;transition:opacity .25s ease;
}
.faq-item[open] summary::before{opacity:1}
.faq-item summary::after{
  content:"+";position:absolute;right:10px;top:50%;transform:translateY(-50%);
  font-family:var(--mono);font-size:20px;color:var(--muted);transition:color .2s;
}
.faq-item[open] summary::after{content:"−";color:var(--accent)}
.faq-item summary:hover{color:var(--accent)}
.faq-body{padding:0 48px 22px 18px;color:var(--muted);font-size:15px;line-height:1.9}

/* ---------- CTA 通栏 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border:1px solid var(--line);border-radius:18px;background:var(--bg-deep);
  padding:34px 36px;display:flex;align-items:center;justify-content:space-between;
  gap:26px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.11) 1px,transparent 1px);
  background-size:15px 15px;opacity:.45;pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(53,240,198,.10),transparent 55%);
  pointer-events:none;
}
.cta-text{position:relative;z-index:2}
.cta-text h2{font-size:clamp(20px,2.3vw,26px);margin-bottom:8px}
.cta-text p{color:var(--muted);font-size:14.5px;max-width:560px}
.cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--line);background:var(--bg-deep);
  margin-top:20px;padding:64px 0 22px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.35fr;gap:34px}
.footer-brand .logo{margin-bottom:14px}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.85;max-width:320px}
.footer-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:14px}
.footer-links{display:grid;gap:10px}
.footer-links a{
  position:relative;display:inline-block;padding-left:12px;
  color:var(--muted);font-size:14.5px;transition:color .2s;
}
.footer-links a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:2px;height:0;border-radius:2px;background:var(--accent);
  transition:height .2s ease;
}
.footer-links a:hover{color:var(--accent)}
.footer-links a:hover::before{height:14px}
.footer-note{font-size:14px;color:var(--muted);line-height:1.85;max-width:340px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);margin-top:44px;padding-top:20px;
  color:var(--muted);font-size:13px;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .wrap{padding:0 24px}
  .guide-layout{grid-template-columns:200px minmax(0,1fr);gap:26px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:991.98px){
  .header-inner{height:60px;gap:14px}
  .nav-toggle{display:inline-flex}
  .icon-btn{display:none}
  .header-actions .btn-main{display:none}
  body.drawer-open{overflow:hidden}
  .nav-links{
    position:fixed;inset:60px 0 0;z-index:1040;
    flex-direction:column;align-items:stretch;gap:0;margin:0;
    background:rgba(10,9,18,.99);
    padding:22px 22px 40px;overflow-y:auto;
    transform:translateX(100%);transition:transform .3s ease;
  }
  body.drawer-open .nav-links{transform:none}
  .drawer-brand{
    display:flex;align-items:center;gap:10px;
    padding-bottom:20px;margin-bottom:12px;border-bottom:1px solid var(--line);
    font-size:15px;font-weight:700;color:var(--text);
  }
  .nav-link-item{
    padding:18px 4px;font-size:17px;color:var(--text);
    border-bottom:1px solid var(--line);
  }
  .nav-link-item::after{display:none}
  .nav-link-item.active{color:var(--accent)}
  .nav-link-item.active::before{left:auto;right:2px;top:50%;width:6px;height:6px}
  .guide-layout{grid-template-columns:minmax(0,1fr);gap:28px}
  .timeline{
    position:static;display:flex;gap:22px;overflow-x:auto;
    padding:4px 2px 16px;border-bottom:1px solid var(--line);
    scrollbar-width:thin;
  }
  .tl-item{
    flex:0 0 210px;padding:16px 0 0 0;border-left:0;border-top:1px solid var(--line);
  }
  .tl-item::before{left:0;top:-5px}
  .tl-item:last-child{border-top-color:var(--line);padding-bottom:0}
  .section{padding:72px 0}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .wrap{padding:0 18px}
  .section{padding:56px 0}
  .cat-hero-inner{min-height:0;padding:44px 18px 40px}
  .cat-lead{font-size:15px}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .steps{grid-template-columns:minmax(0,1fr)}
  .quick-list{grid-template-columns:minmax(0,1fr)}
  .rel-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .faq-item summary{padding:18px 40px 18px 14px;font-size:15.5px}
  .faq-body{padding:0 40px 20px 14px}
  .cta-band{padding:26px 20px}
  .cta-actions{width:100%}
  .cta-actions .btn-main,.cta-actions .btn-ghost{flex:1 1 auto}
  .sec-head{margin-bottom:28px}
  .footer-bottom{justify-content:flex-start}
}

/* roulang page: category3 */
:root{
  --bg-void:#0A0912;
  --bg-deep:#12101F;
  --surface:#191733;
  --surface-2:#221E3D;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --text:#F2F0FA;
  --muted:#A9A4C7;
  --accent:#35F0C6;
  --accent-2:#FF3D7F;
  --accent-3:#F5C86A;
  --focus:#8A7BFF;
  --radius-card:14px;
  --radius-btn:10px;
  --shadow:0 8px 24px rgba(0,0,0,.45);
  --shadow-hover:0 0 0 1px var(--accent),0 12px 32px rgba(53,240,198,.18);
  --container:1200px;
  --font-sans:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;

  --bs-body-bg:#0A0912;
  --bs-body-color:#F2F0FA;
  --bs-primary:#35F0C6;
  --bs-link-color:#35F0C6;
  --bs-link-hover-color:#6df7d6;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;padding:0;
  background:var(--bg-void);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:26px 26px;opacity:.6;
}
h1,h2,h3,h4{font-weight:800;letter-spacing:-.02em;line-height:1.25;color:var(--text);margin:0}
p{margin:0}
a{color:var(--accent);text-decoration:none;transition:color .2s ease}
a:hover{color:#6df7d6}
img{max-width:100%;display:block}
button{font-family:inherit}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
  outline:3px solid var(--focus);outline-offset:2px;border-radius:6px;
}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.wrap{max-width:var(--container);margin:0 auto;padding:0 24px;position:relative;z-index:2}
.section{padding:96px 0}
.section-tight{padding:64px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent);font-family:var(--font-mono);
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--accent);display:block}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-head h2{font-size:clamp(22px,2.4vw,30px)}
.section-head p{color:var(--muted);font-size:14px;max-width:520px;margin-top:10px}
.text-link{
  color:var(--text);font-size:14px;position:relative;padding-bottom:2px;white-space:nowrap;
}
.text-link::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:100%;
  background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.text-link:hover::after{transform:scaleX(1)}
.text-link:hover{color:var(--accent)}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(10,9,18,.78);
  border-bottom:1px solid transparent;
  transition:border-color .25s ease,background .25s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);background:rgba(10,9,18,.92)}
.header-inner{display:flex;align-items:center;gap:28px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text);text-decoration:none}
.logo:hover{color:var(--text)}
.logo-mark{
  width:26px;height:26px;flex:0 0 26px;border-radius:8px;
  background:
    radial-gradient(circle at 30% 30%,var(--accent) 0 22%,transparent 23%),
    radial-gradient(circle at 72% 68%,var(--accent-2) 0 16%,transparent 17%),
    linear-gradient(140deg,#1d1a38,#0e0c1c);
  border:1px solid var(--line-strong);
  box-shadow:inset 0 0 12px rgba(53,240,198,.25);
}
.logo-text{display:flex;flex-direction:column;line-height:1.1}
.logo-main{font-size:16px;font-weight:800;letter-spacing:.02em}
.logo-sub{font-size:11px;color:var(--muted);letter-spacing:.24em;font-family:var(--font-mono)}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-link-item{
  position:relative;color:var(--muted);font-size:15px;padding:6px 2px;text-decoration:none;
}
.nav-link-item::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--accent);
  transition:right .28s ease;
}
.nav-link-item:hover,.nav-link-item.active{color:var(--text)}
.nav-link-item:hover::after,.nav-link-item.active::after{right:0}
.nav-link-item.active::before{
  content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:-9px;
  width:3px;height:3px;border-radius:50%;background:var(--accent);
}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:8px}
.icon-btn{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:999px;color:var(--muted);
  cursor:pointer;transition:.2s ease;
}
.icon-btn:hover{color:var(--accent);border-color:var(--accent)}
.menu-toggle{
  display:none;width:40px;height:40px;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:10px;color:var(--text);cursor:pointer;
}
.mobile-drawer{border-top:1px solid var(--line);background:rgba(12,11,24,.98)}
.mobile-drawer .drawer-inner{padding:14px 24px 26px;display:flex;flex-direction:column;gap:4px}
.mobile-drawer a{
  color:var(--text);font-size:16px;padding:14px 2px;border-bottom:1px solid var(--line);text-decoration:none;
  display:flex;justify-content:space-between;align-items:center;
}
.mobile-drawer a.active{color:var(--accent)}
.mobile-drawer a span.dot{width:5px;height:5px;border-radius:50%;background:var(--accent);display:block}

/* ============ buttons ============ */
.btn-glow,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;cursor:pointer;text-decoration:none;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
  border:1px solid transparent;
}
.btn-glow{background:var(--accent);color:#062019}
.btn-glow:hover{background:#53f6d2;color:#062019;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(53,240,198,.5),0 12px 30px rgba(53,240,198,.24)}
.btn-glow:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text)}
.btn-ghost:hover{background:var(--surface-2);border-color:var(--accent);color:var(--text)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px}

/* ============ hero ============ */
.hero{
  position:relative;
  padding:64px 0 56px;
  background-image:linear-gradient(90deg,rgba(10,9,18,.95) 0%,rgba(10,9,18,.78) 48%,rgba(10,9,18,.52) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;right:-60px;top:-40px;width:420px;height:420px;
  background:radial-gradient(circle,rgba(53,240,198,.14),transparent 65%);
  pointer-events:none;
}
.hero-rail{
  position:absolute;left:0;right:0;top:0;height:100%;
  background-image:repeating-linear-gradient(28deg,rgba(255,255,255,.05) 0 1px,transparent 1px 94px);
  opacity:.5;pointer-events:none;
}
.hero-inner{position:relative;max-width:820px}
.hero h1{font-size:clamp(26px,3.6vw,42px);margin:18px 0 14px}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero-lead{color:#D6D2EC;font-size:17px;max-width:640px}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;
}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;border:1px solid var(--line);
  background:rgba(25,23,51,.6);color:var(--muted);font-size:13px;
}
.chip strong{color:var(--text);font-weight:600}
.chip-dot{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px rgba(53,240,198,.8)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}

/* ============ status strip ============ */
.status-strip{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(25,23,51,.7),rgba(18,16,31,.5));
}
.status-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
}
.status-cell{
  padding:22px 24px;border-right:1px solid var(--line);
}
.status-cell:last-child{border-right:0}
.status-cell .label{
  font-size:12px;letter-spacing:.14em;color:var(--muted);font-family:var(--font-mono);text-transform:uppercase;
}
.status-cell .value{
  font-size:19px;font-weight:800;margin-top:6px;display:flex;align-items:center;gap:8px;
}
.status-cell .value .live{
  width:7px;height:7px;border-radius:50%;background:var(--accent);
  animation:pulse 2s infinite ease-in-out;
}
@keyframes pulse{0%,100%{opacity:1;box-shadow:0 0 0 0 rgba(53,240,198,.6)}50%{opacity:.55;box-shadow:0 0 0 6px rgba(53,240,198,0)}}
.status-cell .sub{font-size:13px;color:var(--muted);margin-top:4px}

/* ============ layout ============ */
.layout{
  display:grid;grid-template-columns:minmax(0,1fr) 264px;gap:56px;align-items:start;
}
.content-col{min-width:0}
.block{margin-bottom:72px}
.block:last-child{margin-bottom:0}
.block h2{
  font-size:clamp(20px,2.1vw,26px);padding-left:16px;position:relative;margin-bottom:14px;
}
.block h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:2px;
  background:linear-gradient(180deg,var(--accent),var(--accent-2));
}
.block h3{font-size:17px;margin:26px 0 10px;display:flex;align-items:center;gap:9px}
.block h3::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-2);flex:0 0 6px}
.block p{color:#CFCAE6;margin-bottom:14px}
.lead-quote{
  border-left:1px solid var(--line-strong);
  padding:12px 0 12px 18px;color:var(--muted);font-size:15px;margin-bottom:20px;
}
.figure{
  border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);
  background:var(--surface);margin:24px 0 10px;
}
.figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.figure figcaption{font-size:13px;color:var(--muted);padding:12px 16px;border-top:1px solid var(--line)}

.check-list{list-style:none;margin:0;padding:0}
.check-list li{
  display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--line);
}
.check-list li:first-child{border-top:1px solid var(--line)}
.check-list .num{
  font-family:var(--font-mono);font-size:13px;color:var(--accent);flex:0 0 34px;padding-top:3px;
}
.check-list .txt strong{display:block;font-size:15px;margin-bottom:4px}
.check-list .txt span{color:var(--muted);font-size:14px}

.trouble-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:22px}
.trouble-card{
  position:relative;padding:22px 20px;border-radius:var(--radius-card);
  background:var(--surface);border:1px solid var(--line);
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.trouble-card::after{
  content:"";position:absolute;right:-1px;bottom:-1px;width:12px;height:12px;
  background:linear-gradient(to top left,transparent 46%,var(--line) 47%,var(--line) 53%,transparent 54%);
  transition:background .25s ease;
}
.trouble-card:hover{border-color:var(--accent);transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.trouble-card:hover::after{background:linear-gradient(to top left,transparent 46%,var(--accent) 47%,var(--accent) 53%,transparent 54%)}
.trouble-card .tag{
  display:inline-block;font-size:12px;font-family:var(--font-mono);color:var(--accent-2);
  border:1px solid rgba(255,61,127,.35);border-radius:999px;padding:2px 10px;margin-bottom:12px;
}
.trouble-card h3{font-size:16px;margin:0 0 8px;display:block}
.trouble-card h3::before{display:none}
.trouble-card p{font-size:14px;color:var(--muted);margin:0}

.info-table{width:100%;border-collapse:collapse;margin-top:18px;font-size:14px}
.info-table th,.info-table td{
  text-align:left;padding:16px 14px;border-bottom:1px solid var(--line);vertical-align:top;
}
.info-table th{
  color:var(--muted);font-weight:600;font-size:13px;letter-spacing:.06em;white-space:nowrap;width:150px;
}
.info-table td{color:#D6D2EC}
.info-table tr:hover td{color:var(--text);background:rgba(34,30,61,.45)}

/* ============ QA ============ */
.qa-list{border-top:1px solid var(--line);margin-top:22px}
.qa-item{border-bottom:1px solid var(--line);position:relative}
.qa-item summary{
  list-style:none;cursor:pointer;padding:20px 44px 20px 18px;position:relative;
  font-size:16px;font-weight:600;color:var(--text);transition:color .2s ease;
}
.qa-item summary::-webkit-details-marker{display:none}
.qa-item summary::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:2px;border-radius:2px;
  background:transparent;transition:background .25s ease;
}
.qa-item summary::after{
  content:"+";position:absolute;right:12px;top:50%;transform:translateY(-50%);
  font-family:var(--font-mono);font-size:20px;color:var(--muted);line-height:1;transition:color .2s ease;
}
.qa-item summary:hover{color:var(--accent)}
.qa-item summary:hover::after{color:var(--accent)}
.qa-item[open] summary{color:var(--accent)}
.qa-item[open] summary::before{background:var(--accent)}
.qa-item[open] summary::after{content:"−";color:var(--accent)}
.qa-body{padding:0 44px 22px 18px;color:var(--muted);font-size:15px}
.qa-body p{margin-bottom:10px;color:var(--muted)}
.qa-body p:last-child{margin-bottom:0}
.qa-body .inline-tip{
  display:inline-block;color:var(--accent-3);font-size:13px;font-family:var(--font-mono);
  border:1px dashed rgba(245,200,106,.4);border-radius:8px;padding:4px 10px;margin-top:6px;
}

/* ============ side toc ============ */
.side-toc{
  position:sticky;top:100px;
  border:1px solid var(--line);border-radius:var(--radius-card);
  background:linear-gradient(180deg,rgba(25,23,51,.85),rgba(18,16,31,.7));
  padding:20px 18px;
}
.toc-title{
  font-size:12px;letter-spacing:.16em;color:var(--muted);font-family:var(--font-mono);
  text-transform:uppercase;margin-bottom:12px;
}
.toc-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.toc-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  color:var(--muted);font-size:14px;padding:10px 8px;border-radius:8px;text-decoration:none;
  transition:color .2s ease,background .2s ease,padding .2s ease;
}
.toc-list a::after{content:"→";font-family:var(--font-mono);font-size:12px;opacity:0;transition:opacity .2s ease}
.toc-list a:hover{color:var(--text);background:var(--surface-2);padding-left:12px}
.toc-list a:hover::after{opacity:1}
.toc-foot{
  margin-top:16px;padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);
}

/* ============ related cards ============ */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.rel-card{
  position:relative;display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--radius-card);border:1px solid var(--line);background:var(--surface);
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;text-decoration:none;
}
.rel-card:hover{border-color:var(--accent);transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.rel-card .thumb{overflow:hidden;aspect-ratio:16/9;background:var(--surface-2)}
.rel-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.rel-card:hover .thumb img{transform:scale(1.03)}
.rel-card .body{padding:18px 18px 20px}
.rel-card .badge-soft{
  display:inline-block;font-size:12px;padding:2px 10px;border-radius:999px;
  border:1px solid rgba(53,240,198,.35);color:var(--accent);margin-bottom:10px;
}
.rel-card h3{font-size:16px;margin:0 0 8px;color:var(--text);transition:color .2s ease}
.rel-card:hover h3{color:var(--accent)}
.rel-card p{font-size:14px;color:var(--muted);margin:0}
.rel-card .foot{
  margin-top:14px;font-size:12px;color:var(--muted);font-family:var(--font-mono);
  display:flex;justify-content:space-between;align-items:center;
}

/* ============ CTA ============ */
.cta-band{
  position:relative;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(120deg,rgba(25,23,51,.95),rgba(10,9,18,.9));
  background-size:22px 22px,cover;
  padding:56px 0;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(20px,2.4vw,28px)}
.cta-inner p{color:var(--muted);font-size:15px;margin-top:10px;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ============ footer ============ */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(18,16,31,.9),rgba(10,9,18,1));
  padding:64px 0 28px;position:relative;z-index:2;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;
  padding-bottom:40px;border-bottom:1px solid var(--line);
}
.footer-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px;letter-spacing:.02em}
.footer-brand p{color:var(--muted);font-size:14px;margin-top:16px;max-width:300px}
.footer-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-links a{
  color:var(--muted);font-size:14px;position:relative;padding-left:0;transition:color .2s ease,padding .2s ease;
}
.footer-links a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:0;height:1px;background:var(--accent);transition:width .2s ease;
}
.footer-links a:hover{color:var(--accent);padding-left:12px}
.footer-links a:hover::before{width:6px}
.footer-note{color:var(--muted);font-size:14px}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  padding-top:20px;color:var(--muted);font-size:13px;font-family:var(--font-mono);
}

/* ============ responsive ============ */
@media (max-width:1199px){
  .layout{grid-template-columns:minmax(0,1fr) 236px;gap:40px}
}
@media (max-width:991px){
  .nav-links,.header-actions .btn-sm{display:none}
  .menu-toggle{display:inline-flex}
  .header-inner{height:60px;gap:16px}
  .section{padding:72px 0}
  .layout{grid-template-columns:1fr;gap:32px}
  .side-toc{
    position:sticky;top:60px;order:-1;border-radius:12px;padding:14px 14px 12px;
    overflow-x:auto;
  }
  .toc-title{margin-bottom:10px}
  .toc-list{flex-direction:row;gap:8px;overflow-x:auto;padding-bottom:4px}
  .toc-list a{
    white-space:nowrap;border:1px solid var(--line);padding:8px 14px;border-radius:999px;font-size:13px;
  }
  .toc-list a::after{display:none}
  .toc-list a:hover{padding-left:14px;background:var(--surface-2)}
  .toc-foot{display:none}
  .trouble-grid{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .status-grid{grid-template-columns:1fr 1fr}
  .status-cell:nth-child(2){border-right:0}
  .status-cell:nth-child(1),.status-cell:nth-child(2){border-bottom:1px solid var(--line)}
}
@media (max-width:767px){
  body{font-size:15px;line-height:1.85}
  .wrap{padding:0 18px}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px}
  .hero{padding:44px 0 40px}
  .hero-lead{font-size:15px}
  .block{margin-bottom:52px}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .qa-item summary{font-size:15px;padding-right:38px}
  .qa-body{padding-right:12px}
  .info-table th{width:112px;font-size:12px}
  .status-cell{padding:18px}
  .status-cell .value{font-size:17px}
}
@media (max-width:519px){
  .hero h1{font-size:24px}
  .btn-glow,.btn-ghost{width:100%}
  .cta-actions{width:100%}
  .logo-sub{letter-spacing:.16em}
}