/* roulang page: index */
:root{
  --bg-deep:#070C16;
  --bg-base:#0B1424;
  --surface:rgba(255,255,255,0.045);
  --surface-solid:#101B2E;
  --primary:#2FE4C8;
  --primary-deep:#14B39C;
  --accent:#6C8CFF;
  --warm:#FFC46B;
  --t1:#E9F0FA;
  --t2:#A9B8CD;
  --t3:#6E7F98;
  --line:rgba(255,255,255,0.09);
  --line-hover:rgba(47,228,200,0.45);
  --radius-card:18px;
  --radius-panel:24px;
  --radius-img:16px;
  --shadow-card:0 18px 44px -24px rgba(0,0,0,0.65);
  --shadow-glow:0 0 0 1px rgba(47,228,200,.45),0 10px 34px -10px rgba(47,228,200,.55);
  --ease:300ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--t2);
  background-color:var(--bg-deep);
  background-image:
    radial-gradient(900px 520px at 12% -8%,rgba(47,228,200,.13),transparent 60%),
    radial-gradient(760px 460px at 92% 6%,rgba(108,140,255,.13),transparent 62%),
    linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);
  background-size:auto,auto,64px 64px,64px 64px;
  background-attachment:fixed,fixed,scroll,scroll;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease)}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
h1,h2,h3,h4{margin:0;color:var(--t1);font-weight:700;letter-spacing:-0.01em}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
.container{width:100%;max-width:1240px;margin:0 auto;padding-left:20px;padding-right:20px}
@media(min-width:1024px){.container{padding-left:32px;padding-right:32px}}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(255,255,255,0.05);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
  transition:background var(--ease),height var(--ease),box-shadow var(--ease);
}
.site-header.scrolled{
  background:rgba(7,12,22,.94);
  box-shadow:0 14px 34px -22px rgba(0,0,0,.9);
}
.nav-inner{display:flex;align-items:center;gap:18px;height:80px;transition:height var(--ease)}
.site-header.scrolled .nav-inner{height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:34px;height:34px;flex:0 0 auto;color:var(--primary)}
.brand-text{font-size:17px;font-weight:700;color:var(--t1);letter-spacing:.01em;white-space:nowrap}
.brand-text em{font-style:normal;color:var(--primary)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{
  position:relative;padding:8px 12px;border-radius:999px;font-size:14.5px;color:var(--t2);
  white-space:nowrap;transition:color var(--ease),background var(--ease);
}
.nav-links a:hover{color:var(--t1);background:rgba(255,255,255,.06)}
.nav-links a.active{color:var(--primary)}
.nav-links a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 12px rgba(47,228,200,.85);
}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:14px}
.icon-btn{
  width:38px;height:38px;display:grid;place-items:center;border-radius:999px;
  border:1px solid var(--line);background:var(--surface);color:var(--t2);
  transition:color var(--ease),border-color var(--ease),transform var(--ease);
}
.icon-btn:hover{color:var(--primary);border-color:var(--line-hover);transform:translateY(-1px)}
.glow-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:999px;font-size:15px;font-weight:600;
  color:#04211C;background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  box-shadow:0 10px 26px -14px rgba(47,228,200,.9);
  transition:transform var(--ease),box-shadow var(--ease),filter var(--ease);
  white-space:nowrap;
}
.glow-btn:hover{filter:brightness(1.07);box-shadow:var(--shadow-glow);transform:translateY(-1px)}
.glow-btn:active{transform:translateY(1px)}
.ghost-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:999px;font-size:15px;font-weight:600;
  color:var(--t1);background:var(--surface);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  transition:border-color var(--ease),transform var(--ease),color var(--ease);
  white-space:nowrap;
}
.ghost-btn:hover{border-color:var(--line-hover);color:var(--primary);transform:translateY(-1px)}
.ghost-btn:active{transform:translateY(1px)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:14.5px;font-weight:600}
.link-arrow span{transition:transform var(--ease)}
.link-arrow:hover span{transform:translateX(4px)}
.menu-btn{display:none;width:40px;height:40px;place-items:center;border-radius:12px;border:1px solid var(--line);background:var(--surface);color:var(--t1)}
.drawer{
  display:none;position:fixed;inset:0;z-index:90;
  background:rgba(7,12,22,.96);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  padding:22px 20px 40px;
}
.drawer.open{display:block}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
.drawer-links{display:flex;flex-direction:column;gap:4px}
.drawer-links a{
  display:flex;align-items:center;justify-content:space-between;
  padding:15px 16px;border-radius:14px;border:1px solid var(--line);
  background:var(--surface);color:var(--t1);font-size:16px;margin-bottom:10px;
}
.drawer-links a.active{color:var(--primary);border-color:var(--line-hover)}
.drawer .glow-btn{width:100%;margin-top:12px}

/* ---------- Hero ---------- */
.hero{position:relative;padding-top:132px;padding-bottom:72px;overflow:hidden}
.hero::after{
  content:"";position:absolute;left:50%;top:-160px;transform:translateX(-50%);
  width:860px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,228,200,.16),transparent 68%);
  filter:blur(28px);pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  font-size:12.5px;letter-spacing:.06em;color:var(--primary);
  border:1px solid rgba(47,228,200,.35);background:rgba(47,228,200,.08);
  margin-bottom:22px;
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary);display:block}
.hero h1{font-size:clamp(30px,4vw,54px);line-height:1.18;margin-bottom:20px}
.hero h1 mark{background:none;color:var(--primary)}
.hero-sub{font-size:16.5px;line-height:1.8;color:var(--t2);max-width:560px;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px}
.hero-facts{display:flex;flex-wrap:wrap;gap:34px}
.fact-num{font-size:26px;font-weight:700;color:var(--t1);font-variant-numeric:tabular-nums;line-height:1.2}
.fact-label{font-size:13px;color:var(--t3);letter-spacing:.04em}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--radius-panel);
  border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.hero-visual::before{
  content:"";position:absolute;inset:-1px;border-radius:calc(var(--radius-panel) + 2px);
  background:linear-gradient(160deg,rgba(47,228,200,.35),transparent 45%,rgba(108,140,255,.3));
  opacity:.45;pointer-events:none;
}
.float-card{
  position:absolute;left:-18px;bottom:24px;
  padding:14px 18px;border-radius:16px;
  background:rgba(16,27,46,.78);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);
  box-shadow:0 18px 38px -22px rgba(0,0,0,.9);
}
.float-card strong{display:block;color:var(--primary);font-size:19px;font-variant-numeric:tabular-nums}
.float-card span{font-size:12.5px;color:var(--t3)}

/* ---------- 快讯条 ---------- */
.ticker{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:rgba(255,255,255,.03);
}
.ticker-inner{display:flex;align-items:center;gap:18px;padding:14px 0;flex-wrap:wrap}
.ticker-tag{
  flex:0 0 auto;font-size:12.5px;font-weight:600;letter-spacing:.06em;color:var(--warm);
  padding:4px 12px;border-radius:8px;border:1px solid rgba(255,196,107,.35);background:rgba(255,196,107,.08);
}
.ticker-list{display:flex;flex-wrap:wrap;gap:10px 30px;font-size:13.5px;color:var(--t3)}
.ticker-list a{display:inline-flex;align-items:center;gap:8px}
.ticker-list a:hover{color:var(--primary)}

/* ---------- 板块通用 ---------- */
.section{padding:76px 0}
.section.alt{background:linear-gradient(180deg,rgba(255,255,255,.022),transparent 70%)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.section-head h2{font-size:clamp(22px,2.4vw,31px);line-height:1.3;position:relative;padding-left:16px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--primary),var(--primary-deep));box-shadow:0 0 14px rgba(47,228,200,.6);
}
.section-head p{color:var(--t3);font-size:14.5px;margin:8px 0 0;max-width:640px}

/* ---------- 玻璃卡 ---------- */
.glass{
  position:relative;border-radius:var(--radius-card);
  background:rgba(255,255,255,0.045);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.glass::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;border-radius:inherit;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.16),transparent);
  pointer-events:none;
}
.glass:hover{transform:translateY(-4px);border-color:var(--line-hover);box-shadow:var(--shadow-glow)}

/* ---------- 编号目录 ---------- */
.toc{display:flex;flex-direction:column;border-radius:var(--radius-panel);overflow:hidden;border:1px solid var(--line);background:rgba(255,255,255,.03)}
.toc-row{
  display:grid;grid-template-columns:64px 1fr auto 24px;align-items:center;gap:18px;
  padding:20px 24px;border-bottom:1px solid var(--line);
  transition:background var(--ease),border-color var(--ease);
}
.toc-row:last-child{border-bottom:none}
.toc-row:hover{background:rgba(47,228,200,.05)}
.toc-num{font-size:22px;font-weight:700;font-variant-numeric:tabular-nums;color:rgba(47,228,200,.32);transition:color var(--ease)}
.toc-row:hover .toc-num{color:var(--primary)}
.toc-title{font-size:17px;font-weight:600;color:var(--t1);margin-bottom:3px}
.toc-desc{font-size:14px;color:var(--t3);line-height:1.7}
.toc-arrow{color:var(--t3);transition:transform var(--ease),color var(--ease)}
.toc-row:hover .toc-arrow{color:var(--primary);transform:translateX(4px)}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:3px 11px;border-radius:8px;
  font-size:12px;letter-spacing:.04em;color:var(--t2);
  border:1px solid var(--line);background:rgba(255,255,255,.05);white-space:nowrap;
}
.badge.primary{color:var(--primary);border-color:rgba(47,228,200,.35);background:rgba(47,228,200,.08)}
.badge.warm{color:var(--warm);border-color:rgba(255,196,107,.3);background:rgba(255,196,107,.07)}

/* ---------- 精选条目（非对称） ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.card-media{position:relative;overflow:hidden;border-radius:var(--radius-img);background:#0d1829}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform var(--ease)}
.glass:hover .card-media img{transform:scale(1.04)}
.post-card{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px}
.post-card h3{font-size:18.5px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card p{font-size:14.5px;line-height:1.75;color:var(--t2);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:12px;border-top:1px solid var(--line)}
.post-meta time{font-size:12.5px;color:var(--warm);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.post-meta .go{color:var(--t3);transition:color var(--ease),transform var(--ease)}
.glass:hover .post-meta .go{color:var(--primary);transform:translateX(3px)}
.span-7{grid-column:span 7}
.span-5{grid-column:span 5}
.span-4{grid-column:span 4}
.span-6{grid-column:span 6}
.span-8{grid-column:span 8}
.span-12{grid-column:span 12}

/* ---------- 数据证据 ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat-card{padding:26px 22px;text-align:left}
.stat-card b{display:block;font-size:32px;line-height:1.15;color:var(--primary);font-variant-numeric:tabular-nums;font-weight:700}
.stat-card span{display:block;font-size:13.5px;color:var(--t3);margin-top:6px;line-height:1.6}

/* ---------- 横向推荐 ---------- */
.scroll-row{display:flex;gap:20px;overflow-x:auto;padding-bottom:10px;scroll-snap-type:x mandatory}
.scroll-row::-webkit-scrollbar{height:6px}
.scroll-row::-webkit-scrollbar-thumb{background:rgba(47,228,200,.3);border-radius:999px}
.scroll-card{flex:0 0 300px;scroll-snap-align:start;padding:18px;display:flex;flex-direction:column;gap:10px}
.scroll-card img{border-radius:14px;aspect-ratio:16/10;object-fit:cover}
.scroll-card h3{font-size:16px;line-height:1.5}
.scroll-card p{font-size:13.5px;color:var(--t3);margin:0;line-height:1.7}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:1fr;gap:14px;max-width:920px;margin:0 auto}
.faq-item{
  border-radius:16px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  overflow:hidden;transition:border-color var(--ease),background var(--ease);
}
.faq-item[open]{border-color:var(--line-hover);background:rgba(47,228,200,.05)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:15.5px;font-weight:600;color:var(--t1);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .plus{
  flex:0 0 auto;width:22px;height:22px;position:relative;transition:transform var(--ease);
}
.faq-item summary .plus::before,
.faq-item summary .plus::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;transform:translate(-50%,-50%);
}
.faq-item summary .plus::before{width:14px;height:2px}
.faq-item summary .plus::after{width:2px;height:14px}
.faq-item[open] summary .plus{transform:rotate(45deg)}
.faq-item .faq-answer{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--t2);margin:0}

/* ---------- 收藏/分享 CTA ---------- */
.cta-panel{
  border-radius:var(--radius-panel);padding:34px;
  display:grid;grid-template-columns:1fr auto;gap:26px;align-items:center;
  background:
    radial-gradient(600px 240px at 8% 0%,rgba(47,228,200,.16),transparent 65%),
    radial-gradient(500px 220px at 96% 100%,rgba(108,140,255,.16),transparent 65%),
    rgba(255,255,255,.045);
  border:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
}
.cta-panel h2{font-size:clamp(21px,2.2vw,28px);margin-bottom:8px}
.cta-panel p{margin:0;color:var(--t3);font-size:14.5px;line-height:1.8;max-width:640px}
.cta-actions{display:flex;gap:10px;flex-wrap:wrap}
.pill-btn{
  display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.05);color:var(--t1);font-size:14px;
  transition:border-color var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.pill-btn:hover{border-color:var(--line-hover);color:var(--primary);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(47,228,200,.25)}
.toast{
  position:fixed;left:50%;bottom:34px;transform:translate(-50%,20px);
  background:rgba(16,27,46,.95);border:1px solid var(--line-hover);color:var(--t1);
  padding:10px 20px;border-radius:999px;font-size:14px;opacity:0;pointer-events:none;
  transition:opacity var(--ease),transform var(--ease);z-index:120;box-shadow:var(--shadow-glow);
}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--line);background:rgba(7,12,22,.7);padding-top:60px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--t3);max-width:320px;margin:0}
.footer-col h4{font-size:14.5px;margin-bottom:16px;color:var(--t1);letter-spacing:.03em}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--t3)}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{border-top:1px solid var(--line);padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center}
.footer-bottom p{margin:0;font-size:13px;color:var(--t3)}
.footer-bottom .tagline{font-size:13px;color:var(--t3)}
.to-top{
  position:fixed;right:22px;bottom:24px;width:46px;height:46px;border-radius:50%;z-index:70;
  display:grid;place-items:center;color:var(--t1);
  border:1px solid var(--line);background:rgba(16,27,46,.8);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  opacity:0;pointer-events:none;transition:opacity var(--ease),transform var(--ease),border-color var(--ease);
}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{border-color:var(--line-hover);color:var(--primary);transform:translateY(-2px)}

/* ---------- 空态 ---------- */
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  min-height:220px;text-align:center;border-radius:var(--radius-card);
  border:1px dashed rgba(255,255,255,.16);background:rgba(255,255,255,.02);
  color:var(--t3);font-size:14.5px;padding:30px;
}
.empty-state svg{color:var(--primary);opacity:.7}

/* ---------- 响应式 ---------- */
@media(max-width:1023px){
  .hero{padding-top:118px;padding-bottom:56px}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-sub{max-width:none}
  .nav-links{display:none}
  .icon-btn.search-btn{display:none}
  .menu-btn{display:grid}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .feature-grid{grid-template-columns:repeat(6,1fr)}
  .span-7,.span-5,.span-8{grid-column:span 6}
  .span-4{grid-column:span 3}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .cta-panel{grid-template-columns:1fr;padding:26px}
  .toc-row{grid-template-columns:48px 1fr 20px;gap:14px;padding:18px}
  .toc-row .toc-badge{display:none}
  .float-card{left:12px;bottom:12px;padding:11px 14px}
}
@media(max-width:767px){
  .section{padding:52px 0}
  .hero h1{font-size:clamp(27px,7vw,34px)}
  .hero-facts{gap:24px}
  .feature-grid{grid-template-columns:1fr;gap:18px}
  .span-4,.span-5,.span-6,.span-7,.span-8,.span-12{grid-column:span 1}
  .stat-grid{grid-template-columns:1fr 1fr;gap:14px}
  .scroll-card{flex:0 0 82%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .brand-text{font-size:15.5px}
  .nav-actions .glow-btn{display:none}
  .ticker-inner{flex-direction:column;align-items:flex-start;gap:10px}
  .toc-row{grid-template-columns:38px 1fr 18px;gap:12px;padding:16px 14px}
  .toc-title{font-size:15.5px}
  .toc-desc{font-size:13px}
}
@media(max-width:520px){
  .container{padding-left:16px;padding-right:16px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .glow-btn,.hero-actions .ghost-btn{width:100%}
  .stat-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category1 */
:root{
  --bg-deep:#070C16;
  --bg-base:#0B1424;
  --surface:rgba(255,255,255,.045);
  --surface-solid:#101B2E;
  --primary:#2FE4C8;
  --primary-deep:#14B39C;
  --accent:#6C8CFF;
  --warm:#FFC46B;
  --t1:#E9F0FA;
  --t2:#A9B8CD;
  --t3:#6E7F98;
  --line:rgba(255,255,255,.09);
  --line-hover:rgba(47,228,200,.45);
  --radius-card:18px;
  --radius-panel:24px;
  --shadow-card:0 18px 44px -24px rgba(0,0,0,.65);
  --shadow-glow:0 0 0 1px rgba(47,228,200,.45),0 10px 34px -10px rgba(47,228,200,.55);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
.site-body{
  margin:0;
  background:var(--bg-deep);
  color:var(--t2);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
.site-body img{display:block;max-width:100%;height:auto}
.site-body a{color:inherit;text-decoration:none}
.site-body button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
.site-body ul,.site-body ol{margin:0;padding:0;list-style:none}
.site-body h1,.site-body h2,.site-body h3,.site-body h4{margin:0;color:var(--t1);font-weight:700;letter-spacing:-.01em}
.site-body p{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1240px;margin:0 auto;padding-left:20px;padding-right:20px}
@media(min-width:768px){.container{padding-left:32px;padding-right:32px}}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  height:80px;display:flex;align-items:center;
  background:rgba(255,255,255,.05);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
  transition:height .3s ease,background .3s ease,box-shadow .3s ease;
}
.site-header.scrolled{
  height:64px;
  background:rgba(7,12,22,.92);
  box-shadow:0 14px 34px -22px rgba(0,0,0,.95);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--t1);flex:none}
.brand-mark{width:30px;height:30px;flex:none;color:var(--primary);filter:drop-shadow(0 0 10px rgba(47,228,200,.35))}
.brand-text{font-size:18px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.brand-text em{font-style:normal;color:var(--primary)}
.nav-links{display:none;align-items:center;gap:26px}
.nav-links a{position:relative;padding:6px 0;font-size:15px;color:var(--t2);transition:color .25s ease}
.nav-links a:hover{color:var(--t1)}
.nav-links a.active{color:var(--primary)}
.nav-links a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 12px rgba(47,228,200,.85);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:none}
.icon-btn{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.05);
  color:var(--t2);transition:color .25s ease,border-color .25s ease,transform .25s ease;
}
.icon-btn:hover{color:var(--primary);border-color:var(--line-hover);transform:translateY(-1px)}
.glow-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 20px;border-radius:999px;font-size:14px;font-weight:600;color:#04120F;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  box-shadow:0 10px 30px -16px rgba(47,228,200,.9);
  transition:transform .28s ease,box-shadow .28s ease,filter .28s ease;
  white-space:nowrap;
}
.glow-btn:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:var(--shadow-glow)}
.glow-btn:active{transform:translateY(1px)}
.menu-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.05);color:var(--t1);
}
@media(min-width:1024px){
  .nav-links{display:flex}
  .menu-btn{display:none}
}
@media(max-width:520px){
  .brand-mark{width:26px;height:26px}
  .brand-text{font-size:15px}
  .nav-actions .search-btn{display:none}
  .glow-btn{padding:9px 14px;font-size:13px}
}

/* ---------- mobile drawer ---------- */
.mobile-drawer{
  position:fixed;inset:0;z-index:90;padding:20px;
  display:flex;flex-direction:column;
  background:rgba(7,12,22,.96);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity .28s ease,transform .28s ease,visibility .28s;
}
.mobile-drawer.open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line)}
.drawer-links{display:flex;flex-direction:column;padding-top:12px}
.drawer-links a{
  padding:16px 4px;font-size:17px;color:var(--t1);border-bottom:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.drawer-links a span.dot{width:6px;height:6px;border-radius:50%;background:var(--line)}
.drawer-links a.active{color:var(--primary)}
.drawer-links a.active span.dot{background:var(--primary);box-shadow:0 0 10px rgba(47,228,200,.9)}
.drawer-foot{margin-top:auto;padding-top:24px;color:var(--t3);font-size:13px}

/* ---------- hero ---------- */
.page-hero{position:relative;overflow:hidden;padding:132px 0 64px;background:var(--bg-base)}
.page-hero .hero-bg{
  position:absolute;inset:0;
  background:url(/assets/images/backpic/back-1.png) center/cover no-repeat;
  opacity:.32;
}
.page-hero .hero-mesh{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:58px 58px;
  opacity:.55;
  mask-image:radial-gradient(ellipse at 30% 20%,#000 20%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse at 30% 20%,#000 20%,transparent 78%);
}
.page-hero .hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,12,22,.78) 0%,rgba(7,12,22,.9) 55%,var(--bg-deep) 100%);
}
.page-hero .hero-blob{
  position:absolute;width:460px;height:460px;border-radius:50%;filter:blur(90px);opacity:.28;pointer-events:none;
}
.page-hero .blob-a{top:-140px;right:-80px;background:radial-gradient(circle,var(--primary),transparent 68%)}
.page-hero .blob-b{bottom:-220px;left:-120px;background:radial-gradient(circle,var(--accent),transparent 70%);opacity:.2}
.page-hero .container{position:relative;z-index:2}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;letter-spacing:.02em;color:var(--t3);margin-bottom:22px}
.crumbs a{color:var(--t3);transition:color .25s ease}
.crumbs a:hover{color:var(--t1)}
.crumbs .sep{color:rgba(255,255,255,.22)}
.crumbs .cur{color:var(--primary)}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  font-size:12px;letter-spacing:.06em;color:var(--primary);
  background:rgba(47,228,200,.08);border:1px solid rgba(47,228,200,.32);
  margin-bottom:20px;
}
.hero-badge i{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px rgba(47,228,200,.9);display:inline-block}
.page-title{font-size:30px;line-height:1.22;max-width:20em}
.page-title .hl{color:var(--primary)}
.hero-lead{margin-top:18px;font-size:15px;line-height:1.8;color:var(--t2);max-width:52ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:999px;font-size:14px;font-weight:600;color:var(--t1);
  background:rgba(255,255,255,.045);border:1px solid var(--line);
  transition:border-color .28s ease,transform .28s ease,background .28s ease;
}
.btn-ghost:hover{border-color:var(--line-hover);background:rgba(47,228,200,.08);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.hero-facts{display:flex;flex-wrap:wrap;gap:12px 34px;margin-top:36px;padding-top:24px;border-top:1px solid var(--line);max-width:640px}
.hero-facts div{display:flex;align-items:baseline;gap:8px}
.hero-facts strong{font-size:22px;font-weight:600;color:var(--t1);font-variant-numeric:tabular-nums}
.hero-facts span{font-size:13px;color:var(--t3)}
@media(min-width:768px){
  .page-hero{padding:168px 0 84px}
  .page-title{font-size:46px}
  .hero-lead{font-size:16px}
}
@media(min-width:1024px){
  .page-title{font-size:52px}
}

/* ---------- sections ---------- */
.section{padding:56px 0}
.section-alt{background:var(--bg-base);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:720px;margin-bottom:34px}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.16em;color:var(--primary);margin-bottom:14px;
}
.sec-eyebrow::before{content:"";width:22px;height:2px;background:var(--primary);border-radius:2px;box-shadow:0 0 10px rgba(47,228,200,.8)}
.sec-title{position:relative;font-size:24px;line-height:1.32;padding-left:16px}
.sec-title::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:3px;background:linear-gradient(180deg,var(--primary),var(--primary-deep))}
.sec-desc{margin-top:14px;font-size:15px;line-height:1.8;color:var(--t2);max-width:62ch}
@media(min-width:768px){
  .section{padding:80px 0}
  .sec-title{font-size:30px}
}

/* ---------- manual layout ---------- */
.manual{display:grid;grid-template-columns:1fr;gap:30px;align-items:start}
.anchor-nav{
  border:1px solid var(--line);border-radius:var(--radius-card);
  background:var(--surface);
  -webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);
  padding:10px;
  position:relative;
}
.anchor-nav::before{
  content:"";position:absolute;top:0;left:16px;right:16px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.16),transparent);
}
.anchor-title{font-size:12px;letter-spacing:.16em;color:var(--t3);padding:12px 12px 10px}
.anchor-nav ul{display:flex;flex-direction:column;gap:2px}
.anchor-nav a{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:12px;font-size:14px;color:var(--t2);
  transition:background .25s ease,color .25s ease;
}
.anchor-nav a em{
  font-style:normal;font-size:12px;color:var(--t3);font-variant-numeric:tabular-nums;
}
.anchor-nav a:hover{background:rgba(255,255,255,.05);color:var(--t1)}
.anchor-nav a:hover em{color:var(--primary)}
@media(min-width:1024px){
  .manual{grid-template-columns:262px minmax(0,1fr);gap:46px}
  .anchor-nav{position:sticky;top:96px}
}
@media(max-width:1023px){
  .anchor-nav ul{flex-direction:row;overflow-x:auto;gap:8px;padding-bottom:2px}
  .anchor-nav a{white-space:nowrap;border:1px solid var(--line)}
  .anchor-title{padding-bottom:8px}
}

.manual-group + .manual-group{margin-top:44px}
.group-head{margin-bottom:18px}
.group-head h2{font-size:20px;line-height:1.4;display:flex;align-items:center;gap:12px}
.group-head h2 .idx{
  font-size:12px;font-weight:500;letter-spacing:.08em;color:var(--warm);
  padding:3px 9px;border-radius:8px;border:1px solid rgba(255,196,107,.3);background:rgba(255,196,107,.08);
}
.group-head p{margin-top:8px;font-size:14px;color:var(--t3)}
.entry-list{border-top:1px solid var(--line)}
.entry{
  display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:16px;align-items:start;
  padding:20px 10px;border-bottom:1px solid var(--line);
  transition:background .25s ease;
}
.entry:hover{background:rgba(255,255,255,.035)}
.entry .no{
  font-size:15px;font-weight:500;color:rgba(47,228,200,.38);
  font-variant-numeric:tabular-nums;line-height:1.6;transition:color .25s ease;
}
.entry:hover .no{color:var(--primary)}
.entry h3{font-size:17px;line-height:1.5;color:var(--t1)}
.entry p{margin-top:6px;font-size:14px;line-height:1.78;color:var(--t2)}
.entry .arrow{
  color:var(--t3);transition:transform .28s ease,color .28s ease;padding-top:4px;
}
.entry:hover .arrow{color:var(--primary);transform:translateX(4px)}
@media(max-width:520px){
  .entry{grid-template-columns:auto minmax(0,1fr);gap:12px}
  .entry .arrow{display:none}
}

/* ---------- zigzag ---------- */
.zig{display:grid;gap:28px}
.zig-row{
  display:grid;gap:24px;align-items:center;
  border:1px solid var(--line);border-radius:var(--radius-panel);
  background:rgba(255,255,255,.035);
  padding:22px;
}
.zig-media{
  position:relative;border-radius:16px;overflow:hidden;
  border:1px solid var(--line);background:var(--surface-solid);
  aspect-ratio:16/10;
}
.zig-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.zig-row:hover .zig-media img{transform:scale(1.04)}
.zig-tag{
  position:absolute;left:12px;top:12px;padding:4px 10px;border-radius:8px;font-size:12px;
  color:var(--primary);background:rgba(7,12,22,.72);border:1px solid rgba(47,228,200,.4);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
}
.zig-body h3{font-size:19px;line-height:1.45}
.zig-body p{margin-top:10px;font-size:14px;line-height:1.8;color:var(--t2)}
.zig-points{margin-top:16px;display:grid;gap:8px}
.zig-points li{
  display:flex;gap:10px;font-size:14px;color:var(--t2);line-height:1.7;
}
.zig-points li::before{
  content:"";flex:none;width:6px;height:6px;margin-top:9px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 10px rgba(47,228,200,.75);
}
@media(min-width:900px){
  .zig-row{grid-template-columns:1fr 1fr;gap:34px;padding:26px}
  .zig-row.rev .zig-media{order:2}
}

/* ---------- stat strip ---------- */
.stat-grid{display:grid;gap:16px;grid-template-columns:1fr}
.stat-card{
  border:1px solid var(--line);border-radius:var(--radius-card);
  background:var(--surface);padding:22px;
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.stat-card:hover{transform:translateY(-4px);border-color:var(--line-hover);box-shadow:var(--shadow-card)}
.stat-card strong{
  display:block;font-size:28px;font-weight:600;color:var(--primary);
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.stat-card span{display:block;margin-top:8px;font-size:14px;color:var(--t1);font-weight:600}
.stat-card small{display:block;margin-top:6px;font-size:13px;line-height:1.7;color:var(--t3)}
@media(min-width:640px){.stat-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.stat-grid{grid-template-columns:repeat(4,1fr)}}

/* ---------- scene cards ---------- */
.scene-grid{display:grid;gap:20px;grid-template-columns:1fr}
.scene-card{
  position:relative;border:1px solid var(--line);border-radius:var(--radius-panel);
  background:rgba(255,255,255,.035);padding:26px;
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
  overflow:hidden;
}
.scene-card:hover{transform:translateY(-4px);border-color:var(--line-hover);box-shadow:var(--shadow-card)}
.scene-card h3{font-size:18px;line-height:1.5}
.scene-card p{margin-top:10px;font-size:14px;line-height:1.8;color:var(--t2)}
.badge{
  display:inline-flex;align-items:center;padding:3px 10px;border-radius:8px;
  font-size:12px;letter-spacing:.04em;color:var(--primary);
  border:1px solid rgba(47,228,200,.32);background:rgba(47,228,200,.08);
  margin-bottom:14px;
}
.badge.warm{color:var(--warm);border-color:rgba(255,196,107,.32);background:rgba(255,196,107,.08)}
@media(min-width:768px){.scene-grid{grid-template-columns:repeat(2,1fr)}}

/* ---------- faq ---------- */
.faq{
  border:1px solid var(--line);border-radius:var(--radius-panel);
  background:var(--surface);overflow:hidden;
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
  padding:20px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--t1);
  transition:color .25s ease,background .25s ease;
}
.faq-q:hover{color:var(--primary);background:rgba(255,255,255,.03)}
.faq-icon{
  flex:none;width:22px;height:22px;display:inline-flex;align-items:center;justify-content:center;
  color:var(--primary);transition:transform .32s ease;margin-top:2px;
}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .36s ease}
.faq-a p{padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--t2)}
@media(min-width:768px){
  .faq-q{padding:22px 26px;font-size:17px}
  .faq-a p{padding:0 26px 24px}
}

/* ---------- cta ---------- */
.cta-panel{
  position:relative;overflow:hidden;
  border-radius:var(--radius-panel);padding:38px 24px;
  background:linear-gradient(135deg,rgba(47,228,200,.14),rgba(108,140,255,.1));
  border:1px solid rgba(47,228,200,.28);
}
.cta-panel::after{
  content:"";position:absolute;width:340px;height:340px;right:-120px;bottom:-160px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,228,200,.35),transparent 68%);filter:blur(60px);
}
.cta-panel .cta-inner{position:relative;z-index:2;display:grid;gap:24px;align-items:center}
.cta-panel h2{font-size:24px;line-height:1.35}
.cta-panel p{margin-top:12px;font-size:15px;line-height:1.8;color:var(--t2);max-width:56ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
@media(min-width:900px){
  .cta-panel{padding:52px 44px}
  .cta-panel .cta-inner{grid-template-columns:minmax(0,1fr) auto;gap:36px}
  .cta-panel h2{font-size:28px}
}

/* ---------- footer ---------- */
.site-footer{
  background:var(--bg-deep);
  border-top:1px solid var(--line);
  padding:52px 0 24px;
}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:var(--t3);max-width:38ch}
.footer-col h4{font-size:13px;letter-spacing:.14em;color:var(--t1);margin-bottom:16px;font-weight:600}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--t3);transition:color .25s ease}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
}
.footer-bottom p{font-size:13px;color:var(--t3)}
.tagline{font-size:12px;letter-spacing:.04em;color:rgba(110,127,152,.85)}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px}}

/* ---------- to top ---------- */
.to-top{
  position:fixed;right:18px;bottom:18px;z-index:70;
  width:44px;height:44px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:rgba(16,27,46,.85);color:var(--t1);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s,border-color .3s,color .3s;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{color:var(--primary);border-color:var(--line-hover)}
@media(min-width:768px){.to-top{right:28px;bottom:28px}}

/* roulang page: article */
:root{
  --bg-deep:#070C16;
  --bg-base:#0B1424;
  --surface:rgba(255,255,255,.045);
  --surface-solid:#101B2E;
  --primary:#2FE4C8;
  --primary-deep:#14B39C;
  --accent:#6C8CFF;
  --warm:#FFC46B;
  --t1:#E9F0FA;
  --t2:#A9B8CD;
  --t3:#6E7F98;
  --line:rgba(255,255,255,.09);
  --line-hover:rgba(47,228,200,.45);
  --r-card:18px;
  --r-panel:24px;
  --r-img:16px;
  --r-pill:999px;
  --shadow-card:0 18px 44px -24px rgba(0,0,0,.65);
  --shadow-glow:0 0 0 1px rgba(47,228,200,.45),0 10px 34px -10px rgba(47,228,200,.55);
  --font:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--t2);
  background:
    radial-gradient(900px 520px at 12% -8%,rgba(47,228,200,.10),transparent 62%),
    radial-gradient(760px 480px at 92% 4%,rgba(108,140,255,.10),transparent 64%),
    var(--bg-deep);
  min-height:100vh;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
::selection{background:rgba(47,228,200,.28);color:#fff}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:768px){
  .container{padding-left:32px;padding-right:32px}
}

/* ---------- 玻璃与按钮 ---------- */
.glass{
  position:relative;
  background:var(--surface);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
}
.glass::before{
  content:"";
  position:absolute;
  inset:0 0 auto 0;
  height:1px;
  border-radius:var(--r-card) var(--r-card) 0 0;
  background:linear-gradient(90deg,rgba(255,255,255,.12),rgba(255,255,255,0));
  pointer-events:none;
}
.glow-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 22px;
  border-radius:var(--r-pill);
  border:1px solid rgba(47,228,200,.5);
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#04160F;
  font-size:14px;
  font-weight:700;
  letter-spacing:.02em;
  white-space:nowrap;
  cursor:pointer;
  transition:transform .3s ease-out,box-shadow .3s ease-out,filter .3s ease-out;
}
.glow-btn:hover{filter:brightness(1.06);box-shadow:var(--shadow-glow);transform:translateY(-1px)}
.glow-btn:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(47,228,200,.35)}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 22px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--t1);
  font-size:14px;
  font-weight:600;
  cursor:pointer;
  transition:border-color .3s ease-out,background .3s ease-out,transform .3s ease-out;
}
.btn-ghost:hover{border-color:var(--line-hover);background:rgba(47,228,200,.08);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--primary);
  font-size:14px;
  font-weight:600;
  transition:gap .3s ease-out,color .3s ease-out;
}
.btn-text:hover{gap:10px;color:#7BF0DD}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:60;
  height:80px;
  display:flex;
  align-items:center;
  background:rgba(255,255,255,.05);
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  border-bottom:1px solid var(--line);
  transition:height .3s ease-out,background .3s ease-out,box-shadow .3s ease-out;
}
.site-header.scrolled{
  height:64px;
  background:rgba(7,12,22,.92);
  box-shadow:0 14px 34px -22px rgba(0,0,0,.9);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--primary);
  flex-shrink:0;
}
.brand-mark{width:32px;height:32px;color:var(--primary);flex-shrink:0}
.brand-text{
  font-size:17px;
  font-weight:700;
  letter-spacing:.01em;
  color:var(--t1);
  white-space:nowrap;
}
.brand-text em{font-style:normal;color:var(--primary)}
.nav-links{
  display:flex;
  align-items:center;
  gap:26px;
}
.nav-links a{
  position:relative;
  font-size:14px;
  color:var(--t2);
  padding:6px 0;
  white-space:nowrap;
  transition:color .25s ease-out;
}
.nav-links a:hover{color:var(--t1)}
.nav-links a.active{color:var(--primary)}
.nav-links a.active::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
  box-shadow:0 0 12px rgba(47,228,200,.85);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.icon-btn{
  width:38px;height:38px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--t1);
  cursor:pointer;
  transition:border-color .25s ease-out,color .25s ease-out,background .25s ease-out;
}
.icon-btn:hover{border-color:var(--line-hover);color:var(--primary);background:rgba(47,228,200,.08)}
.menu-btn{
  display:none;
  width:38px;height:38px;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--t1);
  cursor:pointer;
}
.menu-btn:hover{border-color:var(--line-hover);color:var(--primary)}
.search-panel{
  position:fixed;
  top:88px;
  left:50%;
  transform:translate(-50%,-12px);
  width:min(560px,calc(100% - 40px));
  padding:16px;
  z-index:70;
  opacity:0;
  pointer-events:none;
  transition:opacity .25s ease-out,transform .25s ease-out;
  background:rgba(16,27,46,.96);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:0 24px 60px -30px rgba(0,0,0,.9);
}
.search-panel.open{opacity:1;pointer-events:auto;transform:translate(-50%,0)}
.search-input{
  width:100%;
  padding:12px 16px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--bg-deep);
  color:var(--t1);
  font-size:14px;
  outline:none;
  transition:border-color .25s ease-out,box-shadow .25s ease-out;
}
.search-input::placeholder{color:var(--t3)}
.search-input:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(47,228,200,.08)}
.search-hint{margin-top:10px;font-size:12px;color:var(--t3)}

@media (max-width:1023px){
  .nav-actions .glow-btn{display:none}
  .menu-btn{display:inline-flex}
  .nav-links{
    position:fixed;
    inset:0;
    flex-direction:column;
    align-items:flex-start;
    justify-content:flex-start;
    gap:6px;
    padding:104px 28px 48px;
    background:rgba(7,12,22,.96);
    backdrop-filter:blur(20px);
    -webkit-backdrop-filter:blur(20px);
    transform:translateY(-102%);
    opacity:0;
    pointer-events:none;
    transition:transform .32s ease-out,opacity .32s ease-out;
    overflow-y:auto;
  }
  .nav-links.open{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-links a{
    width:100%;
    font-size:17px;
    padding:14px 0;
    border-bottom:1px solid var(--line);
  }
  .nav-links a.active::after{display:none}
}

/* ---------- 文章顶部区 ---------- */
.article-hero{
  position:relative;
  padding-top:124px;
  padding-bottom:38px;
  background-image:
    linear-gradient(180deg,rgba(7,12,22,.82) 0%,rgba(7,12,22,.92) 62%,var(--bg-deep) 100%),
    url(/assets/images/backpic/back-2.png);
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.article-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(600px 340px at 24% 30%,#000,transparent 78%);
  -webkit-mask-image:radial-gradient(600px 340px at 24% 30%,#000,transparent 78%);
  pointer-events:none;
}
.article-hero .container{position:relative;z-index:2}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:.02em;
  color:var(--t3);
  margin-bottom:20px;
}
.breadcrumb a{color:var(--t3);transition:color .25s ease-out}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:rgba(255,255,255,.18)}
.breadcrumb .current{color:var(--primary)}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  font-size:12px;
  letter-spacing:.04em;
  color:var(--t2);
  background:rgba(255,255,255,.03);
}
.badge-cat{
  border-color:rgba(47,228,200,.42);
  color:var(--primary);
  background:rgba(47,228,200,.08);
}
.badge-time{
  border-color:rgba(255,196,107,.34);
  color:var(--warm);
  background:rgba(255,196,107,.07);
}
.article-hero h1{
  margin:18px 0 0;
  font-size:clamp(28px,4vw,50px);
  line-height:1.2;
  letter-spacing:-.01em;
  font-weight:700;
  color:var(--t1);
  max-width:20ch;
}
.meta-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-top:22px;
  font-size:13px;
  letter-spacing:.02em;
  color:var(--t3);
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.22)}
.meta-row time{font-variant-numeric:tabular-nums;color:var(--warm)}

/* ---------- 主体双栏 ---------- */
.article-wrap{padding:56px 0 24px}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 336px;
  gap:40px;
  align-items:start;
}
.panel{
  position:relative;
  background:var(--surface-solid);
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  box-shadow:var(--shadow-card);
  padding:32px;
}
@media (max-width:1023px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:28px}
  .panel{padding:24px}
}

/* ---------- 正文排版 ---------- */
.article-body{
  max-width:72ch;
  font-size:16px;
  line-height:1.85;
  color:var(--t2);
  overflow-wrap:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.1em}
.article-body h2{
  position:relative;
  margin:42px 0 16px;
  padding-left:16px;
  font-size:28px;
  line-height:1.32;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--t1);
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:6px;bottom:6px;
  width:3px;
  border-radius:2px;
  background:linear-gradient(180deg,var(--primary),var(--primary-deep));
}
.article-body h3{
  margin:30px 0 12px;
  font-size:20px;
  line-height:1.45;
  font-weight:700;
  color:var(--t1);
}
.article-body h4{
  margin:22px 0 10px;
  font-size:17px;
  color:var(--t1);
}
.article-body a{
  color:var(--primary);
  text-decoration:underline;
  text-underline-offset:3px;
  text-decoration-thickness:1px;
  transition:color .25s ease-out;
}
.article-body a:hover{color:#7BF0DD}
.article-body strong{color:var(--t1);font-weight:700}
.article-body ul,
.article-body ol{margin:0 0 1.1em;padding-left:0}
.article-body ul li{
  position:relative;
  padding-left:20px;
  margin-bottom:10px;
}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:0;top:.72em;
  width:7px;height:7px;
  border-radius:2px;
  background:var(--primary);
  opacity:.75;
  transform:rotate(45deg);
}
.article-body ol{counter-reset:ol;}
.article-body ol li{
  position:relative;
  padding-left:28px;
  margin-bottom:10px;
  counter-increment:ol;
}
.article-body ol li::before{
  content:counter(ol,decimal-leading-zero);
  position:absolute;
  left:0;top:0;
  font-size:13px;
  font-weight:500;
  font-variant-numeric:tabular-nums;
  color:var(--primary);
  opacity:.85;
}
.article-body blockquote{
  margin:24px 0;
  padding:18px 22px;
  border-radius:14px;
  border:1px solid var(--line);
  border-left:3px solid var(--primary);
  background:rgba(255,255,255,.045);
  color:var(--t1);
  font-size:15px;
  line-height:1.85;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{
  width:100%;
  height:auto;
  margin:24px 0;
  border-radius:var(--r-img);
  border:1px solid var(--line);
  background:linear-gradient(160deg,#12203a,#0b1424);
}
.article-body figure{margin:24px 0}
.article-body figcaption{
  margin-top:10px;
  font-size:13px;
  color:var(--t3);
  text-align:center;
}
.article-body table{
  width:100%;
  display:block;
  overflow-x:auto;
  margin:24px 0;
  border-collapse:collapse;
  font-size:14px;
  border:1px solid var(--line);
  border-radius:12px;
}
.article-body th,
.article-body td{
  padding:10px 14px;
  border-bottom:1px solid var(--line);
  text-align:left;
  white-space:nowrap;
}
.article-body th{color:var(--t1);background:rgba(255,255,255,.04);font-weight:600}
.article-body tr:last-child td{border-bottom:0}
.article-body code{
  padding:2px 6px;
  border-radius:6px;
  background:rgba(47,228,200,.1);
  color:#8DF3E3;
  font-size:.92em;
}
.article-body pre{
  margin:24px 0;
  padding:18px;
  border-radius:14px;
  border:1px solid var(--line);
  background:#070C16;
  overflow-x:auto;
  font-size:14px;
  line-height:1.7;
}
.article-body pre code{background:none;padding:0;color:var(--t1)}
.article-body hr{
  border:0;
  height:1px;
  margin:36px 0;
  background:linear-gradient(90deg,transparent,var(--line),transparent);
}

.empty-state{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:14px;
  min-height:220px;
  padding:40px 24px;
  text-align:center;
  border:1px dashed rgba(255,255,255,.14);
  border-radius:var(--r-card);
  background:rgba(255,255,255,.025);
}
.empty-state svg{color:var(--primary);opacity:.8}
.empty-state p{font-size:15px;color:var(--t2);max-width:44ch}

/* ---------- 侧栏 ---------- */
.article-aside{
  display:flex;
  flex-direction:column;
  gap:20px;
  position:sticky;
  top:88px;
  align-self:start;
}
@media (max-width:1023px){
  .article-aside{position:static;top:auto}
}
.aside-card{
  position:relative;
  background:var(--surface);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:20px;
  box-shadow:var(--shadow-card);
}
.aside-card::before{
  content:"";
  position:absolute;
  inset:0 0 auto 0;
  height:1px;
  background:linear-gradient(90deg,rgba(255,255,255,.12),transparent);
}
.aside-title{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--t3);
  margin-bottom:14px;
  text-transform:uppercase;
}
.aside-title::before{
  content:"";
  width:14px;height:2px;
  border-radius:2px;
  background:var(--primary);
  opacity:.85;
}
.toc-list{display:flex;flex-direction:column;max-height:260px;overflow-y:auto;padding-right:4px}
.toc-list::-webkit-scrollbar{width:4px}
.toc-list::-webkit-scrollbar-thumb{background:rgba(47,228,200,.35);border-radius:4px}
.toc-list a{
  display:block;
  padding:8px 10px;
  border-left:1px solid var(--line);
  font-size:13.5px;
  line-height:1.6;
  color:var(--t2);
  transition:color .25s ease-out,border-color .25s ease-out,background .25s ease-out;
}
.toc-list a:hover{
  color:var(--primary);
  border-left-color:var(--primary);
  background:rgba(47,228,200,.06);
}
.related-mini{display:flex;flex-direction:column;gap:2px}
.related-mini a{
  display:flex;
  gap:12px;
  align-items:flex-start;
  padding:12px 4px;
  border-bottom:1px solid var(--line);
  transition:background .25s ease-out;
}
.related-mini a:last-child{border-bottom:0}
.related-mini a:hover{background:rgba(255,255,255,.03)}
.related-mini .num{
  flex-shrink:0;
  font-size:13px;
  font-weight:500;
  font-variant-numeric:tabular-nums;
  color:rgba(47,228,200,.42);
  line-height:1.6;
  transition:color .25s ease-out;
}
.related-mini a:hover .num{color:var(--primary)}
.related-mini .mini-body{min-width:0}
.related-mini strong{
  display:block;
  font-size:14.5px;
  font-weight:600;
  color:var(--t1);
  line-height:1.5;
}
.related-mini span{
  display:block;
  margin-top:4px;
  font-size:12.5px;
  color:var(--t3);
  line-height:1.6;
}
.aside-note{
  font-size:13px;
  line-height:1.75;
  color:var(--t3);
  margin-bottom:14px;
}
.aside-actions{display:flex;flex-wrap:wrap;gap:10px}
.aside-actions .glow-btn,
.aside-actions .btn-ghost{padding:9px 16px;font-size:13px}

/* ---------- 标签 / 分享 ---------- */
.article-tail{margin-top:36px;display:flex;flex-direction:column;gap:24px}
.tag-group{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.tag-group .label{font-size:13px;color:var(--t3);letter-spacing:.04em}
.tag{
  display:inline-flex;
  align-items:center;
  padding:5px 13px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  font-size:12.5px;
  color:var(--t2);
  transition:border-color .25s ease-out,color .25s ease-out,background .25s ease-out;
}
.tag:hover{border-color:var(--line-hover);color:var(--primary);background:rgba(47,228,200,.07)}
.share-bar{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 24px;
}
.share-bar .share-copy strong{
  display:block;
  font-size:15px;
  color:var(--t1);
  font-weight:700;
}
.share-bar .share-copy span{
  display:block;
  margin-top:4px;
  font-size:13px;
  color:var(--t3);
}
.share-actions{display:flex;flex-wrap:wrap;gap:10px}
.pill-btn{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:9px 16px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--t1);
  font-size:13px;
  cursor:pointer;
  transition:border-color .25s ease-out,box-shadow .25s ease-out,transform .25s ease-out,color .25s ease-out;
}
.pill-btn:hover{
  border-color:var(--line-hover);
  color:var(--primary);
  box-shadow:0 0 0 1px rgba(47,228,200,.25),0 10px 26px -16px rgba(47,228,200,.6);
  transform:translateY(-1px);
}
.pill-btn:active{transform:translateY(1px)}
.copy-tip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:var(--r-pill);
  background:rgba(47,228,200,.14);
  border:1px solid rgba(47,228,200,.4);
  color:var(--primary);
  font-size:12px;
  opacity:0;
  transform:translateY(4px);
  transition:opacity .25s ease-out,transform .25s ease-out;
}
.copy-tip.show{opacity:1;transform:translateY(0)}

/* ---------- 板块通用 ---------- */
.section{padding:72px 0}
@media (max-width:767px){.section{padding:48px 0}}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom:34px;
}
.section-head h2{
  font-size:clamp(22px,2.6vw,32px);
  line-height:1.3;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--t1);
}
.section-head h2 em{
  font-style:normal;
  color:var(--primary);
}
.section-head p{
  margin-top:10px;
  font-size:14.5px;
  color:var(--t3);
  max-width:60ch;
}

/* ---------- 相关推荐 ---------- */
.rec-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
@media (max-width:1023px){
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:639px){
  .rec-grid{grid-template-columns:minmax(0,1fr);gap:18px}
}
.rec-card{
  position:relative;
  display:flex;
  flex-direction:column;
  background:var(--surface);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .3s ease-out,box-shadow .3s ease-out,border-color .3s ease-out;
}
.rec-card::before{
  content:"";
  position:absolute;
  inset:0 0 auto 0;
  height:1px;
  z-index:3;
  background:linear-gradient(90deg,rgba(255,255,255,.14),transparent);
}
.rec-card:hover{
  transform:translateY(-4px);
  border-color:rgba(47,228,200,.4);
  box-shadow:var(--shadow-glow);
}
.rec-thumb{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  background:linear-gradient(160deg,#12203a,#0b1424);
}
.rec-thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .5s ease-out;
}
.rec-card:hover .rec-thumb img{transform:scale(1.04)}
.rec-thumb .badge{
  position:absolute;
  left:14px;top:14px;
  background:rgba(7,12,22,.7);
  backdrop-filter:blur(8px);
  border-color:rgba(47,228,200,.4);
  color:var(--primary);
}
.rec-body{
  padding:20px;
  display:flex;
  flex-direction:column;
  gap:10px;
  flex:1;
}
.rec-body h3{
  font-size:18px;
  line-height:1.45;
  font-weight:700;
  color:var(--t1);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.rec-body p{
  font-size:14px;
  line-height:1.75;
  color:var(--t2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.rec-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  margin-top:auto;
  padding-top:12px;
  border-top:1px solid var(--line);
  font-size:12.5px;
  color:var(--t3);
  letter-spacing:.02em;
}
.rec-foot .arrow{color:var(--primary);transition:transform .3s ease-out}
.rec-card:hover .rec-foot .arrow{transform:translateX(4px)}

/* ---------- FAQ ---------- */
.faq-list{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--surface);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 24px;
  background:none;
  border:0;
  text-align:left;
  color:var(--t1);
  font-size:15.5px;
  font-weight:700;
  line-height:1.6;
  cursor:pointer;
  transition:background .25s ease-out,color .25s ease-out;
}
.faq-q:hover{background:rgba(255,255,255,.03);color:var(--primary)}
.faq-q .plus{
  flex-shrink:0;
  width:26px;height:26px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  border:1px solid var(--line);
  color:var(--primary);
  font-size:16px;
  line-height:1;
  transition:transform .3s ease-out,border-color .3s ease-out,background .3s ease-out;
}
.faq-item.open .faq-q .plus{
  transform:rotate(45deg);
  border-color:var(--line-hover);
  background:rgba(47,228,200,.1);
}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .32s ease-out;
}
.faq-a p{
  padding:0 24px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--t2);
  max-width:78ch;
}

/* ---------- CTA 面板 ---------- */
.cta-panel{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);
  gap:28px;
  align-items:center;
  padding:36px;
  border-radius:var(--r-panel);
  border:1px solid rgba(47,228,200,.28);
  background:
    radial-gradient(520px 240px at 8% 10%,rgba(47,228,200,.16),transparent 68%),
    radial-gradient(420px 220px at 96% 90%,rgba(108,140,255,.14),transparent 70%),
    var(--surface-solid);
  box-shadow:0 26px 70px -40px rgba(47,228,200,.55);
  overflow:hidden;
}
@media (max-width:767px){
  .cta-panel{grid-template-columns:minmax(0,1fr);padding:26px;gap:20px}
}
.cta-panel h2{
  font-size:clamp(22px,2.6vw,30px);
  line-height:1.32;
  font-weight:700;
  color:var(--t1);
  letter-spacing:-.01em;
}
.cta-panel p{
  margin-top:12px;
  font-size:14.5px;
  line-height:1.8;
  color:var(--t2);
  max-width:56ch;
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:flex-end;
}
@media (max-width:767px){
  .cta-actions{justify-content:flex-start}
}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:72px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,20,36,.4),rgba(7,12,22,1));
  padding:56px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:36px;
}
@media (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:639px){
  .footer-grid{grid-template-columns:1fr;gap:26px}
}
.footer-brand .brand{margin-bottom:14px}
.footer-brand p{
  font-size:14px;
  line-height:1.85;
  color:var(--t3);
  max-width:38ch;
}
.footer-col h4{
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--t1);
  margin-bottom:14px;
  text-transform:uppercase;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{
  font-size:14px;
  color:var(--t3);
  transition:color .25s ease-out,padding-left .25s ease-out;
}
.footer-col a:hover{color:var(--primary);padding-left:3px}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:40px;
  padding-top:20px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--t3);
}
.footer-bottom .tagline{
  font-size:12.5px;
  color:rgba(110,127,152,.85);
  letter-spacing:.02em;
}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;
  right:20px;
  bottom:24px;
  z-index:80;
  width:46px;height:46px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  border:1px solid var(--line);
  background:rgba(16,27,46,.85);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  color:var(--t1);
  cursor:pointer;
  opacity:0;
  pointer-events:none;
  transform:translateY(10px);
  transition:opacity .3s ease-out,transform .3s ease-out,border-color .3s ease-out,color .3s ease-out;
}
.to-top.show{opacity:1;pointer-events:auto;transform:translateY(0)}
.to-top:hover{border-color:var(--line-hover);color:var(--primary)}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --bg-deep:#070C16;
  --bg-base:#0B1424;
  --surface:rgba(255,255,255,.045);
  --surface-solid:#101B2E;
  --primary:#2FE4C8;
  --primary-deep:#14B39C;
  --accent:#6C8CFF;
  --warm:#FFC46B;
  --t1:#E9F0FA;
  --t2:#A9B8CD;
  --t3:#6E7F98;
  --line:rgba(255,255,255,.09);
  --line-hover:rgba(47,228,200,.45);
  --r-card:18px;
  --r-panel:24px;
  --r-img:16px;
  --shadow-card:0 18px 44px -24px rgba(0,0,0,.65);
  --glass:rgba(255,255,255,.045);
  --nav-h:80px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
.site-body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--t2);
  background:
    radial-gradient(1100px 560px at 82% -8%, rgba(47,228,200,.10), transparent 62%),
    radial-gradient(900px 520px at 6% 2%, rgba(108,140,255,.10), transparent 60%),
    var(--bg-deep);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
.site-body img{display:block;max-width:100%;height:auto}
.site-body a{color:inherit;text-decoration:none}
.site-body button{font:inherit}
.site-body h1,.site-body h2,.site-body h3,.site-body h4{margin:0;color:var(--t1);font-weight:700;line-height:1.3}
.site-body p{margin:0}
.site-body ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:8px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(255,255,255,.04);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header.scrolled{
  background:rgba(7,12,22,.92);
  border-bottom-color:var(--line);
  box-shadow:0 14px 34px -22px rgba(0,0,0,.95);
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  height:var(--nav-h);
  transition:height .3s ease;
}
.site-header.scrolled .nav-inner{height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none;color:var(--t1);font-weight:700}
.brand-mark{width:34px;height:34px;color:var(--primary);filter:drop-shadow(0 0 10px rgba(47,228,200,.35))}
.brand-text{font-size:17px;white-space:nowrap;letter-spacing:.01em}
.brand-text em{font-style:normal;color:var(--primary)}
.nav-links{display:flex;align-items:center;gap:2px;margin:0 auto}
.nav-links a{
  position:relative;display:inline-block;padding:9px 14px;border-radius:999px;
  font-size:14px;color:var(--t2);white-space:nowrap;
  transition:color .25s ease,background .25s ease;
}
.nav-links a:hover{color:var(--t1);background:rgba(255,255,255,.06)}
.nav-links a.active{color:var(--primary)}
.nav-links a.active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:16px;height:2px;border-radius:2px;background:var(--primary);
  box-shadow:0 0 10px rgba(47,228,200,.85);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:none}
.icon-btn{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:999px;border:1px solid var(--line);background:var(--glass);color:var(--t1);
  cursor:pointer;backdrop-filter:blur(14px);
  transition:border-color .25s ease,color .25s ease,box-shadow .25s ease,transform .25s ease;
}
.icon-btn:hover{border-color:var(--line-hover);color:var(--primary);box-shadow:0 0 0 1px rgba(47,228,200,.35),0 10px 24px -14px rgba(47,228,200,.6)}
.icon-btn:active{transform:translateY(1px)}
.glow-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 20px;border-radius:999px;border:1px solid rgba(47,228,200,.6);
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#04140F;font-size:14px;font-weight:700;white-space:nowrap;cursor:pointer;
  box-shadow:0 0 0 1px rgba(47,228,200,.22),0 12px 30px -14px rgba(47,228,200,.7);
  transition:transform .25s ease,box-shadow .25s ease,filter .25s ease;
}
.glow-btn:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(47,228,200,.5),0 18px 40px -14px rgba(47,228,200,.8)}
.glow-btn:active{transform:translateY(1px)}
.ghost-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 20px;border-radius:999px;border:1px solid var(--line);
  background:var(--glass);color:var(--t1);font-size:14px;font-weight:600;cursor:pointer;
  backdrop-filter:blur(14px);
  transition:border-color .25s ease,color .25s ease,transform .25s ease,background .25s ease;
}
.ghost-btn:hover{border-color:var(--line-hover);color:var(--primary);transform:translateY(-1px)}
.ghost-btn:active{transform:translateY(1px)}
.menu-btn{
  display:none;width:38px;height:38px;align-items:center;justify-content:center;
  border-radius:999px;border:1px solid var(--line);background:var(--glass);color:var(--t1);
  cursor:pointer;transition:border-color .25s ease,color .25s ease;
}
.menu-btn:hover{border-color:var(--line-hover);color:var(--primary)}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:150px 0 72px;border-bottom:1px solid var(--line)}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.2;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:58px 58px;
  -webkit-mask-image:radial-gradient(circle at 50% 26%,#000 0%,transparent 74%);
  mask-image:radial-gradient(circle at 50% 26%,#000 0%,transparent 74%);
  pointer-events:none;
}
.hero-glow{position:absolute;border-radius:50%;filter:blur(90px);pointer-events:none;z-index:0}
.hero-glow.g1{width:420px;height:320px;top:-60px;right:6%;background:rgba(47,228,200,.20)}
.hero-glow.g2{width:360px;height:300px;bottom:-120px;left:2%;background:rgba(108,140,255,.18)}
.hero-inner{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13px;color:var(--t3);margin-bottom:24px;letter-spacing:.02em}
.breadcrumb a{color:var(--t3);transition:color .25s ease}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:rgba(110,127,152,.6)}
.breadcrumb .current{color:var(--primary)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:20px;
  padding:5px 13px;border-radius:999px;font-size:12px;letter-spacing:.09em;
  color:var(--primary);background:rgba(47,228,200,.08);border:1px solid rgba(47,228,200,.32);
}
.hero h1{
  font-size:clamp(30px,4.2vw,52px);line-height:1.18;letter-spacing:-.01em;
  max-width:22ch;margin-bottom:20px;
}
.hero h1 span{color:var(--primary)}
.hero-lead{font-size:17px;line-height:1.85;color:var(--t2);max-width:62ch;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px}
.stat{
  flex:1 1 190px;min-width:0;padding:16px 20px;border-radius:16px;
  background:var(--glass);border:1px solid var(--line);backdrop-filter:blur(14px);
  transition:border-color .3s ease,transform .3s ease;
}
.stat:hover{border-color:var(--line-hover);transform:translateY(-2px)}
.stat strong{display:block;font-size:26px;font-weight:600;color:var(--primary);font-variant-numeric:tabular-nums;line-height:1.3}
.stat span{display:block;font-size:13px;color:var(--t3);letter-spacing:.02em}

/* ============ 板块通用 ============ */
.section{padding:80px 0}
.section-head{max-width:760px;margin-bottom:44px}
.section-head .kicker{
  display:inline-block;margin-bottom:14px;font-size:12px;letter-spacing:.12em;
  color:var(--warm);border-left:2px solid var(--warm);padding-left:10px;
}
.section-head h2{font-size:clamp(22px,2.6vw,31px);line-height:1.3}
.section-head p{margin-top:14px;color:var(--t2);font-size:15.5px}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:999px;
  font-size:12px;letter-spacing:.02em;color:var(--primary);
  border:1px solid rgba(47,228,200,.35);background:rgba(47,228,200,.08);
}
.badge.warm{color:var(--warm);border-color:rgba(255,196,107,.4);background:rgba(255,196,107,.1)}

/* ============ 交错图文 ============ */
.zig-list{display:flex;flex-direction:column;gap:56px}
.zig-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:44px;align-items:center}
.zig-row.reverse .zig-media{order:2}
.zig-media{
  position:relative;overflow:hidden;border-radius:var(--r-img);
  border:1px solid var(--line);background:var(--surface-solid);
  box-shadow:var(--shadow-card);
}
.zig-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s ease}
.zig-row:hover .zig-media img{transform:scale(1.03)}
.zig-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,12,22,0) 55%,rgba(7,12,22,.55) 100%);
  pointer-events:none;
}
.zig-index{
  position:absolute;left:16px;bottom:14px;z-index:2;
  font-size:13px;font-variant-numeric:tabular-nums;letter-spacing:.14em;color:var(--warm);
}
.zig-body h3{font-size:clamp(19px,2vw,22px);line-height:1.45;margin:14px 0 12px}
.zig-body > p{color:var(--t2);font-size:15.5px;line-height:1.85;margin-bottom:18px}
.point-list{display:grid;gap:11px}
.point-list li{position:relative;padding-left:28px;font-size:14.5px;line-height:1.75;color:var(--t2)}
.point-list li::before{
  content:"";position:absolute;left:0;top:5px;width:15px;height:15px;border-radius:5px;
  border:1px solid rgba(47,228,200,.5);background:rgba(47,228,200,.12);
}
.point-list li::after{
  content:"✓";position:absolute;left:3px;top:-1px;font-size:10px;color:var(--primary);font-weight:700;
}

/* ============ 操作节奏 ============ */
.flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.flow-item{
  padding:22px 20px;border-radius:var(--r-card);background:var(--glass);
  border:1px solid var(--line);backdrop-filter:blur(14px);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.flow-item:hover{transform:translateY(-4px);border-color:var(--line-hover);box-shadow:0 0 0 1px rgba(47,228,200,.3),0 18px 40px -22px rgba(47,228,200,.45)}
.flow-item .num{font-size:13px;letter-spacing:.14em;color:var(--warm);font-variant-numeric:tabular-nums}
.flow-item h3{font-size:17px;margin:10px 0 8px}
.flow-item p{font-size:14px;line-height:1.75;color:var(--t2)}

/* ============ 相关推荐 ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.rec-card{
  display:flex;flex-direction:column;overflow:hidden;border-radius:var(--r-card);
  border:1px solid var(--line);background:var(--surface);backdrop-filter:blur(14px);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.rec-card:hover{transform:translateY(-4px);border-color:var(--line-hover);box-shadow:0 0 0 1px rgba(47,228,200,.35),0 22px 44px -24px rgba(47,228,200,.45)}
.rec-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.rec-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rec-body h3{font-size:17px;line-height:1.45}
.rec-body p{font-size:14px;line-height:1.75;color:var(--t2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;padding-top:8px;font-size:12.5px;color:var(--t3);letter-spacing:.02em}
.rec-meta .arrow{color:var(--primary);transition:transform .3s ease}
.rec-card:hover .rec-meta .arrow{transform:translateX(4px)}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px}
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 4px;background:none;border:0;color:var(--t1);
  font-size:16px;font-weight:600;text-align:left;cursor:pointer;
  transition:color .25s ease;
}
.faq-q:hover{color:var(--primary)}
.faq-icon{position:relative;width:20px;height:20px;flex:none}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;
  transition:transform .3s ease,opacity .3s ease;
}
.faq-icon::before{left:0;top:9px;width:20px;height:2px}
.faq-icon::after{left:9px;top:0;width:2px;height:20px}
.faq-item.open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a p{padding:0 4px 24px;font-size:15px;line-height:1.85;color:var(--t2);max-width:72ch}

/* ============ CTA ============ */
.cta-panel{
  position:relative;overflow:hidden;display:grid;grid-template-columns:1.45fr 1fr;
  gap:32px;align-items:center;padding:44px;border-radius:var(--r-panel);
  border:1px solid rgba(47,228,200,.28);
  background:linear-gradient(135deg,rgba(47,228,200,.14),rgba(108,140,255,.10) 58%,rgba(255,255,255,.03));
  box-shadow:var(--shadow-card);
}
.cta-panel::before{
  content:"";position:absolute;top:-90px;right:-60px;width:280px;height:280px;border-radius:50%;
  background:rgba(47,228,200,.18);filter:blur(80px);pointer-events:none;
}
.cta-panel h2{font-size:clamp(22px,2.4vw,29px);line-height:1.35;margin-bottom:12px;position:relative}
.cta-panel p{font-size:15px;line-height:1.85;color:var(--t2);max-width:52ch;position:relative}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;position:relative}
.copy-tip{font-size:13px;color:var(--primary);min-height:20px;margin-top:10px;text-align:right}

/* ============ 页脚 ============ */
.site-footer{margin-top:20px;border-top:1px solid var(--line);background:rgba(7,12,22,.86);padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:var(--t3);max-width:38ch}
.footer-col h4{font-size:14px;color:var(--t1);margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--t2);transition:color .25s ease}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  font-size:13px;color:var(--t3);
}
.footer-bottom .tagline{letter-spacing:.02em}

/* ============ 回到顶部 ============ */
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:50;
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:999px;border:1px solid var(--line);
  background:rgba(16,27,46,.92);color:var(--t1);cursor:pointer;
  backdrop-filter:blur(12px);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease,border-color .25s ease,color .25s ease;
}
.to-top.show{opacity:1;visibility:visible;transform:none}
.to-top:hover{border-color:var(--line-hover);color:var(--primary)}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .menu-btn{display:inline-flex}
  .nav-links{
    position:fixed;inset:0;z-index:55;flex-direction:column;justify-content:center;gap:14px;
    background:rgba(7,12,22,.96);backdrop-filter:blur(18px);
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .3s ease,transform .3s ease,visibility .3s ease;
  }
  .nav-open .nav-links{opacity:1;visibility:visible;transform:none}
  .nav-links a{font-size:18px;padding:12px 24px}
  .nav-links a.active::after{width:22px;bottom:6px}
  .nav-actions .glow-btn{display:none}
  .zig-row{grid-template-columns:1fr;gap:26px}
  .zig-row.reverse .zig-media{order:0}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-panel{grid-template-columns:1fr;padding:34px}
  .cta-actions{justify-content:flex-start}
  .copy-tip{text-align:left}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  .hero{padding:122px 0 54px}
  .section{padding:56px 0}
  .hero-lead{font-size:16px}
  .card-grid{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .section-head{margin-bottom:32px}
  .zig-list{gap:42px}
}
@media (max-width:519px){
  .brand-text{font-size:15px}
  .hero-actions .glow-btn,.hero-actions .ghost-btn{width:100%}
  .stat{flex:1 1 100%}
  .cta-panel{padding:26px}
  .cta-actions .glow-btn,.cta-actions .ghost-btn{width:100%}
}

/* roulang page: category3 */
:root{
  --bg-deep:#070C16;
  --bg-base:#0B1424;
  --surface:rgba(255,255,255,.045);
  --surface-solid:#101B2E;
  --primary:#2FE4C8;
  --primary-deep:#14B39C;
  --accent:#6C8CFF;
  --warm:#FFC46B;
  --t1:#E9F0FA;
  --t2:#A9B8CD;
  --t3:#6E7F98;
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(47,228,200,.45);
  --radius-card:18px;
  --radius-panel:24px;
  --radius-img:16px;
  --shadow-card:0 18px 44px -24px rgba(0,0,0,.65);
  --glow:0 0 0 1px rgba(47,228,200,.45), 0 10px 34px -10px rgba(47,228,200,.55);
  --header-h:80px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg-deep);
  color:var(--t2);
  font-size:16px;
  line-height:1.85;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    radial-gradient(620px 420px at 10% 6%, rgba(47,228,200,.10), transparent 70%),
    radial-gradient(760px 520px at 90% 20%, rgba(108,140,255,.09), transparent 72%),
    linear-gradient(rgba(255,255,255,.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.022) 1px, transparent 1px);
  background-size:auto,auto,56px 56px,56px 56px;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{color:var(--t1);font-weight:700;line-height:1.3;letter-spacing:-.01em;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}
::selection{background:rgba(47,228,200,.28);color:#fff;}

.container{
  width:100% !important;
  max-width:1240px !important;
  margin-inline:auto;
  padding-inline:32px;
}
main{position:relative;z-index:1;}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:100;
  height:var(--header-h);
  display:flex;
  align-items:center;
  background:rgba(255,255,255,.045);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
  transition:height .3s ease, background .3s ease, box-shadow .3s ease;
}
.site-header::after{
  content:"";
  position:absolute;
  inset:0 0 auto 0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.22),transparent);
  pointer-events:none;
}
.site-header.scrolled{
  height:64px;
  background:rgba(7,12,22,.93);
  box-shadow:0 14px 40px -22px rgba(0,0,0,.9);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:100%;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--t1);
  font-weight:700;
  white-space:nowrap;
}
.brand-mark{width:32px;height:32px;color:var(--primary);flex:none;}
.brand-text{font-size:17px;letter-spacing:.01em;}
.brand-text em{font-style:normal;color:var(--primary);}
.nav-links{
  display:flex;
  align-items:center;
  gap:26px;
}
.nav-links a{
  position:relative;
  font-size:15px;
  color:var(--t2);
  padding:6px 0;
  transition:color .25s ease;
  white-space:nowrap;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
  box-shadow:0 0 10px rgba(47,228,200,.85);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .28s ease;
}
.nav-links a:hover{color:var(--t1);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--primary);}
.nav-links a.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:999px;
  color:var(--t1);
  background:rgba(255,255,255,.045);
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  transition:border-color .25s ease, color .25s ease, transform .25s ease;
}
.icon-btn:hover{border-color:var(--line-strong);color:var(--primary);transform:translateY(-1px);}
.glow-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 24px;
  border-radius:999px;
  font-size:15px;
  font-weight:700;
  color:#05130F;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  box-shadow:0 10px 28px -14px rgba(47,228,200,.9);
  transition:transform .25s ease, box-shadow .25s ease, filter .25s ease;
  white-space:nowrap;
}
.glow-btn:hover{filter:brightness(1.07);box-shadow:var(--glow);transform:translateY(-1px);}
.glow-btn:active{transform:translateY(1px);}
.ghost-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 24px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  color:var(--t1);
  background:rgba(255,255,255,.045);
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  transition:border-color .25s ease, transform .25s ease, color .25s ease;
  white-space:nowrap;
}
.ghost-btn:hover{border-color:var(--line-strong);color:var(--primary);transform:translateY(-1px);}
.ghost-btn:active{transform:translateY(1px);}
.menu-btn{
  display:none;
  width:40px;height:40px;
  align-items:center;justify-content:center;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.045);
  color:var(--t1);
}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  padding:148px 0 76px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero__bg{
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  opacity:.34;
  filter:saturate(110%);
}
.page-hero__mask{
  position:absolute;
  inset:0;
  background:
    linear-gradient(180deg, rgba(7,12,22,.72) 0%, rgba(7,12,22,.88) 58%, rgba(7,12,22,.98) 100%),
    radial-gradient(700px 460px at 82% 18%, rgba(47,228,200,.16), transparent 70%);
}
.page-hero__inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:minmax(0,1.55fr) minmax(0,.85fr);
  gap:48px;
  align-items:center;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:.02em;
  color:var(--t3);
  margin-bottom:20px;
}
.breadcrumb a{color:var(--t3);transition:color .25s ease;}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb span.sep{color:rgba(255,255,255,.18);}
.breadcrumb span.current{color:var(--primary);}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 14px;
  border-radius:999px;
  font-size:12px;
  letter-spacing:.06em;
  color:var(--primary);
  background:rgba(47,228,200,.08);
  border:1px solid rgba(47,228,200,.35);
  margin-bottom:20px;
}
.hero-badge i{
  width:6px;height:6px;border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 10px rgba(47,228,200,.9);
  display:inline-block;
}
.hero-title{
  font-size:clamp(30px,4vw,50px);
  line-height:1.18;
  letter-spacing:-.01em;
  margin-bottom:18px;
}
.hero-title em{
  font-style:normal;
  background:linear-gradient(120deg,var(--primary),#8DF3E3 60%,var(--accent));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-lead{
  font-size:16px;
  line-height:1.85;
  color:var(--t2);
  max-width:60ch;
  margin-bottom:26px;
}
.tab-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:26px;
}
.tab-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 18px;
  border-radius:999px;
  font-size:14px;
  color:var(--t2);
  background:rgba(255,255,255,.045);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  transition:color .25s ease, border-color .25s ease, transform .25s ease;
}
.tab-pill:hover{color:var(--t1);border-color:var(--line-strong);transform:translateY(-1px);}
.tab-pill.is-current{
  color:var(--primary);
  border-color:rgba(47,228,200,.5);
  background:rgba(47,228,200,.08);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.hero-side{
  position:relative;
  border-radius:var(--radius-panel);
  padding:26px;
  background:rgba(255,255,255,.045);
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.hero-side::before{
  content:"";
  position:absolute;
  inset:0 0 auto 0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.4),transparent);
}
.hero-side h2{
  font-size:15px;
  letter-spacing:.06em;
  color:var(--t3);
  font-weight:600;
  text-transform:none;
  margin-bottom:18px;
}
.side-list li + li{border-top:1px solid var(--line);}
.side-list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:13px 0;
  font-size:15px;
  color:var(--t1);
  transition:color .25s ease;
}
.side-list a span.dot{
  width:7px;height:7px;border-radius:50%;
  background:rgba(47,228,200,.55);
  flex:none;
  transition:box-shadow .25s ease, background .25s ease;
}
.side-list a b{font-weight:500;flex:1;text-align:left;}
.side-list a .go{color:var(--t3);font-size:13px;transition:transform .25s ease,color .25s ease;}
.side-list a:hover{color:var(--primary);}
.side-list a:hover .go{transform:translateX(4px);color:var(--primary);}
.side-list a:hover span.dot{background:var(--primary);box-shadow:0 0 12px rgba(47,228,200,.9);}
.side-foot{
  margin-top:18px;
  padding-top:16px;
  border-top:1px solid var(--line);
  display:flex;
  gap:20px;
  font-size:13px;
  color:var(--t3);
}
.side-foot b{
  display:block;
  font-size:22px;
  color:var(--primary);
  font-variant-numeric:tabular-nums;
  font-weight:600;
  line-height:1.3;
}

/* ============ 通用板块 ============ */
.section{position:relative;padding:76px 0;}
.section--tight{padding:60px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:36px;
  flex-wrap:wrap;
}
.section-head h2{
  font-size:clamp(22px,2.6vw,32px);
  line-height:1.3;
  position:relative;
  padding-left:16px;
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;top:8px;bottom:8px;
  width:3px;
  border-radius:3px;
  background:linear-gradient(180deg,var(--primary),var(--primary-deep));
  box-shadow:0 0 14px rgba(47,228,200,.6);
}
.section-head p{
  font-size:15px;
  color:var(--t3);
  margin-top:10px;
  padding-left:16px;
  max-width:66ch;
}
.section-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  color:var(--primary);
  transition:gap .25s ease;
}
.section-link:hover{gap:11px;}

/* ============ 分组卡片 ============ */
.group-block + .group-block{margin-top:64px;}
.group-title{
  display:flex;
  align-items:center;
  gap:14px;
  margin-bottom:24px;
}
.group-title .idx{
  font-size:15px;
  font-variant-numeric:tabular-nums;
  color:var(--warm);
  letter-spacing:.08em;
  border:1px solid rgba(255,196,107,.35);
  background:rgba(255,196,107,.07);
  padding:2px 10px;
  border-radius:8px;
  flex:none;
}
.group-title h2{font-size:clamp(21px,2.4vw,28px);}
.group-title .count{
  font-size:13px;
  color:var(--t3);
  border:1px solid var(--line);
  border-radius:999px;
  padding:2px 12px;
  margin-left:auto;
  flex:none;
}
.card-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.info-card{
  position:relative;
  display:flex;
  flex-direction:column;
  gap:14px;
  padding:24px;
  border-radius:var(--radius-card);
  background:rgba(255,255,255,.045);
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:transform .3s ease-out, border-color .3s ease, box-shadow .3s ease;
}
.info-card::before{
  content:"";
  position:absolute;
  inset:0 0 auto 0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.34),transparent);
  pointer-events:none;
}
.info-card:hover{
  transform:translateY(-4px);
  border-color:var(--line-strong);
  box-shadow:0 0 0 1px rgba(47,228,200,.32), 0 22px 46px -22px rgba(47,228,200,.32);
}
.card-top{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.badge{
  display:inline-flex;
  align-items:center;
  padding:3px 11px;
  font-size:12px;
  letter-spacing:.04em;
  border-radius:999px;
  color:var(--primary);
  background:rgba(47,228,200,.08);
  border:1px solid rgba(47,228,200,.35);
  flex:none;
}
.badge.warm{
  color:var(--warm);
  background:rgba(255,196,107,.08);
  border-color:rgba(255,196,107,.35);
}
.badge.cool{
  color:#AFC2FF;
  background:rgba(108,140,255,.1);
  border-color:rgba(108,140,255,.35);
}
.card-title{font-size:19px;line-height:1.45;color:var(--t1);}
.card-text{font-size:15px;line-height:1.8;color:var(--t2);}
.card-foot{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--t3);
  letter-spacing:.02em;
}
.card-foot time{font-variant-numeric:tabular-nums;}
.card-arrow{color:var(--primary);transition:transform .3s ease;display:inline-flex;}
.info-card:hover .card-arrow{transform:translateX(5px);}

/* ============ 清单图文 ============ */
.checklist-panel{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:0;
  border-radius:var(--radius-panel);
  overflow:hidden;
  border:1px solid var(--line);
  background:rgba(255,255,255,.035);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);
}
.checklist-media{position:relative;min-height:320px;background:var(--surface-solid);}
.checklist-media img{
  width:100%;height:100%;
  object-fit:cover;
  border-radius:0;
  transition:transform .5s ease;
}
.checklist-panel:hover .checklist-media img{transform:scale(1.04);}
.checklist-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,transparent 40%,rgba(11,20,36,.72));
  pointer-events:none;
}
.checklist-body{padding:36px 34px;}
.checklist-body h2{font-size:clamp(21px,2.4vw,28px);margin-bottom:12px;}
.checklist-body > p{font-size:15px;color:var(--t2);margin-bottom:22px;}
.check-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  padding:11px 0;
  font-size:15px;
  color:var(--t2);
  border-bottom:1px dashed rgba(255,255,255,.07);
}
.check-list li:last-child{border-bottom:0;}
.check-list .tick{
  width:20px;height:20px;
  flex:none;
  margin-top:3px;
  border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(47,228,200,.12);
  border:1px solid rgba(47,228,200,.4);
  color:var(--primary);
}
.check-list b{color:var(--t1);font-weight:600;}

/* ============ FAQ ============ */
.faq-wrap{
  display:grid;
  grid-template-columns:minmax(0,.72fr) minmax(0,1.28fr);
  gap:44px;
  align-items:start;
}
.faq-intro h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:14px;padding-left:16px;position:relative;}
.faq-intro h2::before{
  content:"";
  position:absolute;left:0;top:8px;bottom:8px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--primary),var(--primary-deep));
  box-shadow:0 0 14px rgba(47,228,200,.6);
}
.faq-intro p{font-size:15px;color:var(--t2);padding-left:16px;margin-bottom:20px;}
.faq-intro .faq-note{
  margin-left:16px;
  padding:16px 18px;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  font-size:14px;
  color:var(--t3);
}
.faq-list{
  border-radius:var(--radius-panel);
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  overflow:hidden;
}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-q{margin:0;}
.faq-q button{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:20px 24px;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--t1);
  line-height:1.5;
  transition:color .25s ease, background .25s ease;
}
.faq-q button:hover{color:var(--primary);background:rgba(255,255,255,.03);}
.faq-q .plus{
  position:relative;
  width:22px;height:22px;
  flex:none;
  border-radius:50%;
  border:1px solid var(--line);
  transition:transform .3s ease, border-color .3s ease, color .3s ease;
}
.faq-q .plus::before,
.faq-q .plus::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  background:currentColor;
  transform:translate(-50%,-50%);
  transition:opacity .3s ease;
}
.faq-q .plus::before{width:10px;height:1.5px;}
.faq-q .plus::after{width:1.5px;height:10px;}
.faq-item.open .faq-q button{color:var(--primary);}
.faq-item.open .plus{transform:rotate(45deg);border-color:rgba(47,228,200,.5);color:var(--primary);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .35s ease;
}
.faq-a p{
  padding:0 24px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--t2);
  max-width:72ch;
}
.faq-item.open .faq-a{max-height:340px;}

/* ============ CTA ============ */
.cta-panel{
  position:relative;
  border-radius:var(--radius-panel);
  padding:48px 44px;
  display:grid;
  grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);
  gap:36px;
  align-items:center;
  background:
    radial-gradient(600px 300px at 88% 10%, rgba(47,228,200,.16), transparent 70%),
    linear-gradient(135deg, rgba(255,255,255,.06), rgba(255,255,255,.025));
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.cta-panel::before{
  content:"";
  position:absolute;
  inset:0 0 auto 0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.4),transparent);
}
.cta-panel h2{font-size:clamp(22px,2.8vw,32px);margin-bottom:14px;line-height:1.28;}
.cta-panel p{font-size:15px;color:var(--t2);max-width:52ch;}
.cta-actions{display:flex;flex-direction:column;gap:14px;align-items:stretch;}
.cta-actions .glow-btn,
.cta-actions .ghost-btn{width:100%;padding:14px 26px;}
.cta-hint{
  font-size:13px;
  color:var(--t3);
  text-align:center;
  margin-top:2px;
}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  z-index:1;
  margin-top:24px;
  padding:64px 0 28px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg, rgba(11,20,36,.5), rgba(7,12,22,.96));
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid var(--line);
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--t3);max-width:38ch;}
.footer-col h4{
  font-size:14px;
  letter-spacing:.08em;
  color:var(--t1);
  margin-bottom:16px;
  font-weight:600;
}
.footer-col li + li{margin-top:10px;}
.footer-col a{font-size:14px;color:var(--t3);transition:color .25s ease;}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding-top:24px;
  flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--t3);}
.footer-bottom .tagline{font-size:13px;color:rgba(169,184,205,.7);}

/* ============ 回到顶部 ============ */
.to-top{
  position:fixed;
  right:26px;
  bottom:26px;
  z-index:90;
  width:46px;height:46px;
  border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--t1);
  background:rgba(255,255,255,.06);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:0 14px 30px -16px rgba(0,0,0,.9);
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity .3s ease, transform .3s ease, visibility .3s, border-color .25s ease, color .25s ease;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{border-color:var(--line-strong);color:var(--primary);}

/* ============ 响应式 ============ */
@media (max-width:1100px){
  .nav-links{gap:20px;}
  .nav-links a{font-size:14px;}
}
@media (max-width:1023px){
  .menu-btn{display:inline-flex;}
  .nav-links{
    position:fixed;
    top:var(--header-h);
    left:0;right:0;
    flex-direction:column;
    align-items:flex-start;
    gap:0;
    padding:12px 32px 26px;
    background:rgba(7,12,22,.97);
    backdrop-filter:blur(18px) saturate(120%);
    -webkit-backdrop-filter:blur(18px) saturate(120%);
    border-bottom:1px solid var(--line);
    box-shadow:0 26px 50px -28px rgba(0,0,0,.95);
    transform:translateY(-12px);
    opacity:0;
    visibility:hidden;
    transition:opacity .28s ease, transform .28s ease, visibility .28s;
    max-height:calc(100vh - var(--header-h));
    overflow-y:auto;
  }
  .site-header.menu-open .nav-links{
    opacity:1;visibility:visible;transform:translateY(0);
  }
  .nav-links a{
    width:100%;
    padding:14px 0;
    font-size:16px;
    border-bottom:1px solid rgba(255,255,255,.06);
  }
  .nav-links a::after{display:none;}
  .nav-links a.active{color:var(--primary);}
  .page-hero{padding:128px 0 60px;}
  .page-hero__inner{grid-template-columns:minmax(0,1fr);gap:36px;}
  .hero-side{max-width:560px;}
  .faq-wrap{grid-template-columns:minmax(0,1fr);gap:28px;}
  .cta-panel{grid-template-columns:minmax(0,1fr);padding:36px 30px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .checklist-panel{grid-template-columns:minmax(0,1fr);}
  .checklist-media{min-height:240px;}
  .checklist-media::after{background:linear-gradient(180deg,transparent 45%,rgba(11,20,36,.7));}
}
@media (max-width:768px){
  .container{padding-inline:20px !important;}
  .section{padding:56px 0;}
  .section--tight{padding:44px 0;}
  .hero-title{font-size:30px;}
  .hero-lead{font-size:15px;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .group-block + .group-block{margin-top:46px;}
  .checklist-body{padding:26px 22px;}
  .faq-q button{padding:17px 18px;font-size:15px;}
  .faq-a p{padding:0 18px 18px;}
  .cta-panel{padding:30px 22px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .nav-actions .glow-btn{display:none;}
  .to-top{right:16px;bottom:16px;}
}
@media (max-width:520px){
  .hero-title{font-size:26px;}
  .brand-text{font-size:15px;}
  .brand-mark{width:28px;height:28px;}
  .tab-pill{font-size:13px;padding:7px 14px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .glow-btn,
  .hero-actions .ghost-btn{width:100%;}
  .section-head{align-items:flex-start;flex-direction:column;gap:12px;}
  .group-title{flex-wrap:wrap;}
  .group-title .count{margin-left:0;}
  .info-card{padding:20px;}
}

/* roulang page: category4 */
:root{
  --bg-deep:#070C16;
  --bg-base:#0B1424;
  --surface:rgba(255,255,255,.045);
  --surface-solid:#101B2E;
  --primary:#2FE4C8;
  --primary-deep:#14B39C;
  --accent:#6C8CFF;
  --warm:#FFC46B;
  --t1:#E9F0FA;
  --t2:#A9B8CD;
  --t3:#6E7F98;
  --line:rgba(255,255,255,.09);
  --line-hover:rgba(47,228,200,.45);
  --r-card:18px;
  --r-panel:24px;
  --r-img:16px;
  --shadow-card:0 18px 44px -24px rgba(0,0,0,.65);
  --glow:0 0 0 1px rgba(47,228,200,.45),0 10px 34px -10px rgba(47,228,200,.55);
  --maxw:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-deep);
  color:var(--t2);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure{margin:0}
h1,h2,h3,h4{color:var(--t1);font-weight:700;line-height:1.25}
::selection{background:rgba(47,228,200,.28);color:#fff}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}
@media(min-width:1024px){.container{padding:0 32px}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  height:80px;
  background:rgba(255,255,255,.045);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  backdrop-filter:blur(18px) saturate(120%);
  border-bottom:1px solid var(--line);
  transition:height .3s ease,background .3s ease,box-shadow .3s ease;
}
.site-header::before{
  content:"";position:absolute;inset:0 0 auto 0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.14),transparent);
  pointer-events:none;
}
.site-header.is-scrolled{
  height:64px;
  background:rgba(7,12,22,.93);
  box-shadow:0 14px 34px -22px rgba(0,0,0,.9);
}
.nav-inner{height:100%;display:flex;align-items:center;gap:24px;justify-content:space-between}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--t1);flex:0 0 auto}
.brand-mark{width:32px;height:32px;color:var(--primary);flex:0 0 auto;transition:transform .3s ease}
.brand:hover .brand-mark{transform:rotate(-8deg)}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.brand-text em{font-style:normal;color:var(--primary)}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{
  position:relative;font-size:14.5px;color:var(--t2);
  padding:6px 0;transition:color .25s ease;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 12px rgba(47,228,200,.75);
  transform:scaleX(0);transform-origin:left;transition:transform .3s ease;
}
.nav-links a:hover{color:var(--t1)}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active{color:var(--primary)}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.icon-btn{
  width:38px;height:38px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--t2);background:var(--surface);border:1px solid var(--line);
  transition:color .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.icon-btn:hover{color:var(--primary);border-color:var(--line-hover);box-shadow:var(--glow)}
.glow-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:999px;
  font-size:14px;font-weight:600;letter-spacing:.02em;
  color:#04211C;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  box-shadow:0 8px 26px -12px rgba(47,228,200,.75);
  transition:transform .25s ease,box-shadow .25s ease,filter .25s ease;
  white-space:nowrap;
}
.glow-btn:hover{filter:brightness(1.08);box-shadow:var(--glow);transform:translateY(-1px)}
.glow-btn:active{transform:translateY(1px)}
.menu-btn{
  display:none;width:38px;height:38px;border-radius:10px;
  align-items:center;justify-content:center;color:var(--t1);
  background:var(--surface);border:1px solid var(--line);
}
.menu-btn:hover{border-color:var(--line-hover);color:var(--primary)}
@media(max-width:1080px){
  .nav-links{gap:18px}
  .nav-links a{font-size:13.5px}
}
@media(max-width:920px){
  .menu-btn{display:inline-flex}
  .nav-links{
    position:fixed;top:64px;left:0;right:0;
    flex-direction:column;align-items:flex-start;gap:0;
    padding:12px 20px 24px;
    background:rgba(7,12,22,.97);
    -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
    border-bottom:1px solid var(--line);
    box-shadow:0 24px 48px -30px rgba(0,0,0,.95);
    transform:translateY(-12px);opacity:0;pointer-events:none;
    transition:transform .28s ease,opacity .28s ease;
    max-height:calc(100vh - 64px);overflow-y:auto;
  }
  .nav-links.open{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-links a{width:100%;padding:14px 0;font-size:15.5px;border-bottom:1px solid rgba(255,255,255,.06)}
  .nav-links a::after{display:none}
  .nav-links a.active{color:var(--primary)}
  .nav-actions .glow-btn{display:none}
}
@media(max-width:520px){
  .brand-text{font-size:15px}
  .brand-mark{width:28px;height:28px}
}

/* ---------- 通用板块 ---------- */
.section{padding:56px 0}
@media(min-width:1024px){.section{padding:84px 0}}
.section-head{max-width:760px;margin-bottom:32px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;color:var(--primary);
  margin-bottom:14px;
}
.section-head .eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--primary);box-shadow:0 0 12px rgba(47,228,200,.7)}
.section-head h2{font-size:28px;line-height:1.3;margin-bottom:12px}
.section-head p{font-size:15px;color:var(--t2);line-height:1.85;max-width:70ch}
@media(max-width:640px){
  .section-head h2{font-size:22px}
}

.panel{
  position:relative;
  background:var(--surface);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  box-shadow:var(--shadow-card);
}
.panel::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;border-radius:var(--r-panel) var(--r-panel) 0 0;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.12),transparent);
  pointer-events:none;
}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding-top:132px;padding-bottom:56px;
  background:
    radial-gradient(760px 420px at 82% -10%,rgba(47,228,200,.14),transparent 68%),
    radial-gradient(620px 420px at 6% 22%,rgba(108,140,255,.13),transparent 70%),
    linear-gradient(180deg,var(--bg-base),var(--bg-deep));
}
.page-hero .grid-bg{
  position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 28%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 28%,#000 0%,transparent 78%);
}
.breadcrumb{
  position:relative;display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--t3);margin-bottom:26px;
}
.breadcrumb a{color:var(--t3);transition:color .25s ease}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:rgba(255,255,255,.22)}
.breadcrumb .current{color:var(--primary)}
.hero-grid{
  position:relative;
  display:grid;grid-template-columns:1fr;gap:40px;align-items:center;
}
@media(min-width:1024px){
  .hero-grid{grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:56px}
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;letter-spacing:.04em;line-height:1;
  padding:7px 12px;border-radius:999px;
  border:1px solid rgba(47,228,200,.35);
  color:var(--primary);background:rgba(47,228,200,.08);
}
.badge-warm{color:var(--warm);border-color:rgba(255,196,107,.32);background:rgba(255,196,107,.08)}
.page-hero h1{
  font-size:32px;line-height:1.2;letter-spacing:-.01em;
  margin:18px 0 16px;
}
@media(min-width:768px){.page-hero h1{font-size:42px}}
@media(min-width:1024px){.page-hero h1{font-size:50px}}
.page-hero .hero-sub{
  font-size:16px;line-height:1.85;color:var(--t2);max-width:56ch;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:999px;font-size:14px;font-weight:600;
  color:var(--t1);background:var(--surface);border:1px solid var(--line);
  transition:border-color .25s ease,color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.btn-ghost:hover{border-color:var(--line-hover);color:var(--primary);transform:translateY(-1px);box-shadow:0 10px 28px -18px rgba(47,228,200,.7)}
.btn-ghost:active{transform:translateY(1px)}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:28px;margin-top:34px;
  padding-top:24px;border-top:1px solid var(--line);
}
.hero-stats li{display:flex;flex-direction:column;gap:2px}
.hero-stats .num{
  font-size:24px;font-weight:700;color:var(--primary);
  font-variant-numeric:tabular-nums;line-height:1.1;
}
.hero-stats .lbl{font-size:13px;color:var(--t3);letter-spacing:.02em}
.hero-figure{position:relative;margin:0}
.hero-figure .frame{
  position:relative;border-radius:var(--r-panel);overflow:hidden;
  border:1px solid var(--line);
  box-shadow:0 30px 70px -40px rgba(0,0,0,.95),0 0 0 1px rgba(255,255,255,.03) inset;
}
.hero-figure img{width:100%;aspect-ratio:16/11;object-fit:cover;background:var(--surface-solid)}
.hero-figure .frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,12,22,0) 40%,rgba(7,12,22,.72));
  pointer-events:none;
}
.hero-float{
  position:absolute;left:-10px;bottom:-18px;
  padding:14px 18px;border-radius:14px;
  background:rgba(16,27,46,.86);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  display:flex;align-items:center;gap:12px;
}
.hero-float strong{display:block;font-size:15px;color:var(--t1);line-height:1.3}
.hero-float span{font-size:12.5px;color:var(--t3)}
.hero-float .dot{
  width:34px;height:34px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  color:var(--primary);background:rgba(47,228,200,.1);border:1px solid rgba(47,228,200,.28);
}
@media(max-width:640px){
  .page-hero{padding-top:108px}
  .hero-float{position:static;margin-top:16px;left:auto;bottom:auto}
  .hero-stats{gap:20px}
}

/* ---------- 要点清单 ---------- */
.check-grid{
  display:grid;grid-template-columns:1fr;gap:16px;
}
@media(min-width:768px){.check-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}}
.check-item{
  display:flex;gap:14px;align-items:flex-start;
  padding:20px 22px;border-radius:var(--r-card);
  background:rgba(255,255,255,.032);
  border:1px solid var(--line);
  transition:border-color .3s ease,transform .3s ease,background .3s ease,box-shadow .3s ease;
}
.check-item:hover{
  border-color:var(--line-hover);transform:translateY(-3px);
  background:rgba(47,228,200,.045);
  box-shadow:0 16px 40px -26px rgba(47,228,200,.6);
}
.check-icon{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:var(--primary);background:rgba(47,228,200,.12);
  border:1px solid rgba(47,228,200,.35);margin-top:4px;
}
.check-item p{font-size:15px;line-height:1.8;color:var(--t2)}
.check-item strong{color:var(--t1);font-weight:600}

/* ---------- 规则分组 ---------- */
.rule-group{margin-bottom:34px}
.rule-group:last-child{margin-bottom:0}
.rule-group h3{
  display:flex;align-items:center;gap:12px;
  font-size:19px;margin-bottom:16px;
}
.rule-group h3::before{
  content:"";width:3px;height:20px;border-radius:3px;
  background:var(--primary);box-shadow:0 0 14px rgba(47,228,200,.7);
}
.rule-list{border-top:1px solid var(--line)}
.rule-row{
  display:grid;grid-template-columns:auto 1fr;gap:16px;
  padding:20px 4px;border-bottom:1px solid var(--line);
  transition:background .3s ease,padding-left .3s ease;
}
.rule-row:hover{background:rgba(255,255,255,.028);padding-left:12px}
.rule-no{
  font-size:15px;font-weight:600;color:rgba(47,228,200,.42);
  font-variant-numeric:tabular-nums;letter-spacing:.04em;line-height:1.7;
  transition:color .3s ease;
}
.rule-row:hover .rule-no{color:var(--primary)}
.rule-row h4{font-size:16.5px;margin-bottom:6px;line-height:1.5}
.rule-row p{font-size:14.5px;line-height:1.8;color:var(--t2);max-width:66ch}
@media(max-width:640px){
  .rule-row{grid-template-columns:1fr;gap:6px}
}

/* ---------- 核对流程 ---------- */
.step-grid{display:grid;grid-template-columns:1fr;gap:16px}
@media(min-width:640px){.step-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.step-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
.step-card{
  padding:22px 20px;border-radius:var(--r-card);
  background:linear-gradient(170deg,rgba(255,255,255,.055),rgba(255,255,255,.02));
  border:1px solid var(--line);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.step-card:hover{transform:translateY(-4px);border-color:var(--line-hover);box-shadow:0 18px 42px -28px rgba(47,228,200,.7)}
.step-card .idx{
  font-size:13px;font-weight:600;color:var(--warm);
  font-variant-numeric:tabular-nums;letter-spacing:.08em;display:block;margin-bottom:12px;
}
.step-card h4{font-size:17px;margin-bottom:8px}
.step-card p{font-size:14px;line-height:1.78;color:var(--t2)}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 4px;text-align:left;
  font-size:16px;font-weight:600;color:var(--t1);line-height:1.6;
  transition:color .25s ease;
}
.faq-q:hover{color:var(--primary)}
.faq-q .ic{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:var(--primary);background:rgba(47,228,200,.1);
  border:1px solid rgba(47,228,200,.3);
  transition:transform .3s ease,background .3s ease;
}
.faq-item.open .faq-q{color:var(--primary)}
.faq-item.open .faq-q .ic{transform:rotate(45deg);background:rgba(47,228,200,.2)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .38s ease;
}
.faq-a .inner{padding:0 46px 24px 4px;font-size:15px;line-height:1.88;color:var(--t2);max-width:74ch}
@media(max-width:640px){.faq-a .inner{padding-right:12px}}

/* ---------- CTA 面板 ---------- */
.cta-panel{
  position:relative;overflow:hidden;
  padding:40px 26px;
  border-radius:var(--r-panel);
  background:
    radial-gradient(520px 320px at 88% 6%,rgba(47,228,200,.18),transparent 70%),
    radial-gradient(420px 300px at 4% 92%,rgba(108,140,255,.16),transparent 72%),
    linear-gradient(160deg,rgba(16,27,46,.96),rgba(11,20,36,.98));
  border:1px solid rgba(47,228,200,.22);
  box-shadow:0 30px 70px -40px rgba(47,228,200,.55);
}
@media(min-width:768px){.cta-panel{padding:56px 48px}}
.cta-panel h2{font-size:28px;line-height:1.3;max-width:22ch}
@media(min-width:768px){.cta-panel h2{font-size:34px}}
.cta-panel p{margin-top:14px;font-size:15.5px;color:var(--t2);max-width:60ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.cta-note{margin-top:20px;font-size:13px;color:var(--t3)}

/* ---------- 相关入口 ---------- */
.entry-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:768px){.entry-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.entry-card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--r-card);
  background:var(--surface);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.entry-card:hover{transform:translateY(-4px);border-color:var(--line-hover);box-shadow:0 22px 48px -30px rgba(47,228,200,.75)}
.entry-card .thumb{overflow:hidden;aspect-ratio:16/10;background:var(--surface-solid)}
.entry-card img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.entry-card:hover img{transform:scale(1.04)}
.entry-card .body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.entry-card h3{font-size:18px;line-height:1.45}
.entry-card p{font-size:14px;line-height:1.78;color:var(--t2)}
.entry-card .more{
  margin-top:auto;display:inline-flex;align-items:center;gap:6px;
  font-size:13.5px;font-weight:600;color:var(--primary);
}
.entry-card .more svg{transition:transform .3s ease}
.entry-card:hover .more svg{transform:translateX(4px)}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:40px;
  padding:56px 0 26px;
  background:linear-gradient(180deg,rgba(11,20,36,.4),rgba(7,12,22,1));
  border-top:1px solid var(--line);
}
.footer-grid{
  display:grid;grid-template-columns:1fr;gap:32px;
}
@media(min-width:768px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}}
.footer-brand .brand{margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--t3);max-width:38ch}
.footer-col h4{font-size:14px;color:var(--t1);margin-bottom:14px;letter-spacing:.03em}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--t3);transition:color .25s ease}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;align-items:center;
  font-size:13px;color:var(--t3);
}
.footer-bottom .tagline{color:var(--t3)}
@media(max-width:640px){.footer-bottom{flex-direction:column;align-items:flex-start}}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:90;
  width:44px;height:44px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:var(--primary);
  background:rgba(16,27,46,.85);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  opacity:0;pointer-events:none;transform:translateY(10px);
  transition:opacity .3s ease,transform .3s ease,border-color .3s ease;
}
.to-top.show{opacity:1;pointer-events:auto;transform:translateY(0)}
.to-top:hover{border-color:var(--line-hover);box-shadow:var(--glow)}
@media(max-width:520px){.to-top{right:14px;bottom:16px;width:40px;height:40px}}