/* roulang page: index */
:root{
  --ink-950:#050B14;
  --ink-900:#0A1424;
  --ink-800:#101E33;
  --brand:#17E0B0;
  --brand-deep:#0FB98F;
  --amber:#FFB23E;
  --blue:#2F6BFF;
  --text:#E8EEF7;
  --muted:#93A4BC;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --glass:rgba(255,255,255,.055);
  --nav-ink:#0A1424;
  --radius-card:18px;
  --radius-panel:22px;
  --radius-btn:12px;
  --shadow-card:0 22px 48px -28px rgba(0,0,0,.85), inset 0 1px 0 rgba(255,255,255,.06);
  --shadow-glow:0 0 0 1px rgba(23,224,176,.45), 0 12px 32px -12px rgba(23,224,176,.55);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--ink-950);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease),opacity .2s var(--ease)}
a:hover{color:#4bf0c6}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.3;letter-spacing:.2px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;font-size:inherit;border:0;background:none;cursor:pointer;color:inherit}
input{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ====== 通用按钮 ====== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .25s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn-primary{
  background:var(--brand);color:var(--ink-950);
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{background:#2ff0c2;color:#04121c;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(23,224,176,.5),0 18px 40px -14px rgba(23,224,176,.7)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{
  background:var(--glass);color:var(--text);
  border:1px solid var(--line-strong);
  backdrop-filter:blur(14px) saturate(120%);
}
.btn-ghost:hover{border-color:rgba(23,224,176,.55);background:rgba(23,224,176,.08);color:#fff;transform:translateY(-2px)}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:15px;padding:0;
}
.btn-link .arrow{transition:transform .22s var(--ease)}
.btn-link:hover .arrow{transform:translateX(3px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}

/* ====== 徽章 ====== */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:500;line-height:1;white-space:nowrap;
}
.badge-glass{background:rgba(23,224,176,.10);border:1px solid rgba(23,224,176,.4);color:var(--brand)}
.badge-amber{background:var(--amber);color:#1a1204}
.badge-soft{background:rgba(255,255,255,.08);border:1px solid var(--line);color:var(--muted)}
.badge-lock{background:rgba(5,11,20,.72);border:1px solid var(--line-strong);color:#dbe6f5}

/* ====== 顶部导航 ====== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#FFFFFF;
  border-bottom:1px solid #E6EBF2;
  box-shadow:0 1px 2px rgba(16,24,40,.05);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 22px -8px rgba(16,24,40,.18)}
.header-inner{
  display:flex;align-items:center;gap:24px;height:64px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--nav-ink)}
.brand:hover{color:var(--nav-ink)}
.brand-mark{
  width:32px;height:32px;border-radius:9px;
  display:grid;place-items:center;
  background:linear-gradient(150deg,rgba(23,224,176,.16),rgba(47,107,255,.14));
  border:1px solid rgba(23,224,176,.55);
}
.brand-mark svg{width:18px;height:18px}
.brand-text{font-size:18px;font-weight:600;letter-spacing:.3px}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1 1 auto;min-width:0}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  height:64px;padding:0 12px;color:#3c4a63;font-size:15px;font-weight:500;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--brand-deep);background:rgba(23,224,176,.08)}
.nav-link.is-active{color:var(--brand-deep);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;border-radius:2px;
  background:var(--brand);
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.search-box{
  position:relative;width:220px;
}
.search-box svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:#8794a8}
.search-box input{
  width:100%;height:40px;border-radius:999px;
  padding:0 14px 0 34px;
  background:#F4F7FB;border:1px solid #E6EBF2;color:#12203a;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.search-box input::placeholder{color:#93a0b5}
.search-box input:focus{
  outline:none;background:#fff;border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(23,224,176,.18);
}
.menu-toggle{
  display:none;width:40px;height:40px;border-radius:10px;
  border:1px solid #E6EBF2;background:#F4F7FB;
  align-items:center;justify-content:center;
}
.menu-toggle svg{width:20px;height:20px;color:#12203a}
.site-header::after{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,rgba(23,224,176,0),rgba(23,224,176,.6),rgba(23,224,176,0));
}

/* ====== 移动抽屉 ====== */
.nav-drawer{
  position:fixed;inset:64px 0 0 0;z-index:55;
  background:#fff;padding:12px 20px 32px;
  transform:translateX(-102%);transition:transform .28s var(--ease);
  overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  height:52px;padding:0 4px;color:#22304a;font-size:16px;font-weight:500;
  border-bottom:1px solid #EDF1F7;
}
.drawer-link.is-active{color:var(--brand-deep);font-weight:600}
.drawer-foot{margin-top:20px;display:flex;flex-direction:column;gap:12px}

/* ====== 主体通用 ====== */
main{display:block}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:40px;flex-wrap:wrap;
}
.section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.3}
.section-head .sub{color:var(--muted);font-size:15px;margin-top:10px;max-width:620px}
.section-alt{background:var(--ink-900)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:500;color:var(--brand);letter-spacing:1px;
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brand);display:block}

/* ====== Hero ====== */
.hero{
  position:relative;overflow:hidden;
  min-height:clamp(520px,68vh,720px);
  display:flex;align-items:center;
  background:var(--ink-950);
}
.hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  opacity:.55;
}
.hero::before{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(100deg,rgba(5,11,20,.94) 0%,rgba(5,11,20,.86) 42%,rgba(5,11,20,.55) 100%);
}
.hero::after{
  content:"";position:absolute;inset:auto 0 0 0;height:180px;z-index:1;
  background:linear-gradient(180deg,rgba(5,11,20,0),rgba(5,11,20,.92));
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:repeat(12,1fr);gap:24px;
  align-items:center;padding:72px 0;
}
.hero-copy{grid-column:span 6}
.hero-visual{grid-column:span 6}
.hero h1{
  font-size:clamp(30px,4.4vw,52px);line-height:1.18;margin-bottom:18px;
}
.hero h1 em{font-style:normal;color:var(--brand)}
.hero-lead{
  color:#c3d0e3;font-size:17px;line-height:1.85;max-width:560px;
}
.hero-actions{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;
  margin-top:38px;max-width:560px;
}
.stat-chip{
  background:var(--glass);border:1px solid var(--line);
  border-radius:16px;padding:14px 16px;
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);
}
.stat-chip .num{
  font-family:var(--mono);font-size:22px;font-weight:700;color:var(--brand);line-height:1.2;
}
.stat-chip .label{font-size:13px;color:var(--muted);margin-top:4px}
.hero-visual img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--radius-panel);
  border:1px solid var(--line-strong);
  box-shadow:0 32px 70px -34px rgba(0,0,0,.95);
}

/* ====== 流程 ====== */
.flow-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;
}
.flow-card{
  position:relative;
  background:var(--glass);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:26px 22px;
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.flow-card:hover{transform:translateY(-3px);border-color:rgba(23,224,176,.35);box-shadow:0 28px 56px -28px rgba(0,0,0,.95)}
.flow-step{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:11px;
  font-family:var(--mono);font-size:15px;font-weight:700;
  color:var(--brand);background:rgba(23,224,176,.1);
  border:1px solid rgba(23,224,176,.4);margin-bottom:16px;
}
.flow-card h3{font-size:18px;margin-bottom:10px}
.flow-card p{font-size:14px;color:var(--muted);line-height:1.8}

/* ====== 资讯卡片 ====== */
.card-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;
}
.card-news{
  display:flex;flex-direction:column;
  background:var(--glass);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.card-news:hover{transform:translateY(-3px);border-color:rgba(23,224,176,.35);box-shadow:0 30px 60px -30px rgba(0,0,0,.95)}
.card-media{position:relative;overflow:hidden;background:rgba(255,255,255,.05)}
.card-media img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  transition:transform .35s var(--ease);
}
.card-news:hover .card-media img{transform:scale(1.03)}
.card-body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-title{
  font-size:16px;font-weight:600;line-height:1.5;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-title:hover{color:var(--brand)}
.card-excerpt{
  font-size:14px;color:var(--muted);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
}
.card-meta time{font-size:13px;color:var(--muted);font-family:var(--mono)}
.empty-panel{
  grid-column:1/-1;
  display:flex;flex-direction:column;align-items:center;gap:16px;
  padding:56px 24px;text-align:center;
  background:var(--glass);border:1px dashed var(--line-strong);
  border-radius:var(--radius-panel);
  backdrop-filter:blur(14px) saturate(120%);
}
.empty-panel svg{width:34px;height:34px;color:var(--brand)}
.empty-panel p{color:var(--muted);font-size:15px}

/* ====== 权益对比 ====== */
.compare{
  background:var(--glass);border:1px solid var(--line);
  border-radius:var(--radius-panel);overflow:hidden;
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);
}
.compare-head,.compare-row{
  display:grid;grid-template-columns:1.6fr repeat(3,1fr);
}
.compare-head{
  position:sticky;top:64px;z-index:5;
  background:rgba(16,30,51,.92);
  backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
}
.compare-cell{
  padding:16px 18px;font-size:14px;color:var(--muted);
  display:flex;align-items:center;gap:8px;
  border-right:1px solid var(--line);
}
.compare-cell:last-child{border-right:0}
.compare-head .compare-cell{font-weight:600;color:var(--text);font-size:15px}
.compare-row{border-bottom:1px solid var(--line);transition:background .2s var(--ease)}
.compare-row:last-child{border-bottom:0}
.compare-row:hover{background:rgba(255,255,255,.03)}
.compare-name{font-weight:500;color:var(--text)}
.compare-cell.is-recommend{background:rgba(23,224,176,.06)}
.compare-head .is-recommend{color:var(--brand)}
.state-ok{color:var(--brand);font-weight:600}
.state-part{color:var(--amber);font-weight:600}
.state-no{color:rgba(255,255,255,.3)}

/* ====== 等级卡 ====== */
.tier-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;align-items:stretch}
.tier-card{
  position:relative;display:flex;flex-direction:column;
  background:var(--glass);border:1px solid var(--line);
  border-radius:var(--radius-panel);padding:28px 24px;
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);overflow:hidden;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.tier-card::before{
  content:"";position:absolute;inset:0 0 auto 0;height:2px;
  background:linear-gradient(90deg,rgba(23,224,176,0),var(--brand),rgba(47,107,255,.6));
}
.tier-card:hover{transform:translateY(-3px);border-color:rgba(23,224,176,.35)}
.tier-card.is-featured{
  transform:scale(1.04);
  border-color:rgba(23,224,176,.45);
  box-shadow:0 0 0 1px rgba(23,224,176,.4),0 34px 64px -30px rgba(23,224,176,.35);
}
.tier-card.is-featured:hover{transform:scale(1.04) translateY(-3px)}
.tier-badge{position:absolute;top:20px;right:20px}
.tier-card h3{font-size:20px;margin-bottom:8px}
.tier-desc{font-size:14px;color:var(--muted);line-height:1.75;min-height:52px}
.tier-list{margin:22px 0;display:flex;flex-direction:column;gap:12px}
.tier-list li{display:flex;gap:10px;font-size:14px;color:#cbd7e6;line-height:1.7}
.tier-list li svg{flex:0 0 auto;width:16px;height:16px;margin-top:5px;color:var(--brand)}
.tier-price{
  margin-top:auto;display:flex;align-items:baseline;gap:8px;
  padding-top:18px;border-top:1px solid var(--line);
}
.price-num{font-family:var(--mono);font-size:32px;font-weight:700;color:var(--amber);line-height:1.1}
.price-unit{font-size:13px;color:var(--muted)}
.tier-card .btn{margin-top:18px}
.tier-note{font-size:12px;color:var(--muted);margin-top:10px}

/* ====== 专属内容预览 ====== */
.lock-overlay{
  position:absolute;inset:0;
  background:rgba(5,11,20,.55);
  backdrop-filter:blur(6px);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  color:#e6eefc;font-size:13px;
}
.lock-overlay svg{width:22px;height:22px;color:var(--brand)}

/* ====== 数据说明 ====== */
.fact-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.fact-card{
  background:var(--glass);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:26px 22px;
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);
}
.fact-card .num{
  font-family:var(--mono);font-size:30px;font-weight:700;color:var(--brand);line-height:1.2;
}
.fact-card .label{font-size:15px;font-weight:600;margin-top:8px}
.fact-card p{font-size:13px;color:var(--muted);margin-top:6px;line-height:1.7}

/* ====== FAQ ====== */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 4px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;color:var(--text);
  transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-item summary::after{
  content:"";flex:0 0 auto;width:9px;height:9px;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(45deg);transition:transform .2s var(--ease);
}
.faq-item[open] summary::after{transform:rotate(-135deg)}
.faq-answer{
  padding:0 4px 24px;font-size:15px;line-height:1.8;color:var(--muted);
}
.faq-lead{text-align:center;color:var(--muted);font-size:15px;margin-bottom:32px}

/* ====== CTA ====== */
.cta-panel{
  position:relative;overflow:hidden;
  display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:center;
  padding:46px 42px;
  background:var(--glass);border:1px solid var(--line-strong);
  border-radius:var(--radius-panel);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);
}
.cta-panel::before{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;
  background:radial-gradient(circle,rgba(23,224,176,.12),transparent 66%);
  pointer-events:none;
}
.cta-panel h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:14px}
.cta-list{display:flex;flex-direction:column;gap:10px;margin-top:18px}
.cta-list li{display:flex;gap:10px;font-size:14px;color:#cbd7e6}
.cta-list li svg{flex:0 0 auto;width:16px;height:16px;margin-top:5px;color:var(--brand)}
.cta-actions{display:flex;flex-direction:column;gap:14px;align-items:stretch}
.cta-actions .btn-link{justify-content:center}

/* ====== 页脚 ====== */
.site-footer{
  background:#040910;
  border-top:1px solid var(--line);
  padding:64px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:32px;
  padding-bottom:44px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-text{color:#fff;font-size:18px}
.footer-desc{font-size:14px;color:var(--muted);line-height:1.85;max-width:320px}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a{font-size:14px;color:var(--muted)}
.footer-col a:hover{color:var(--brand)}
.footer-contact li{font-size:14px;color:var(--muted);display:flex;gap:8px}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}

/* ====== 响应式 ====== */
@media (max-width:1200px){
  .card-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:1024px){
  .main-nav{display:none}
  .menu-toggle{display:inline-flex}
  .header-actions .btn-primary{display:none}
  .search-box{width:180px}
  .hero-inner{grid-template-columns:1fr;padding:56px 0}
  .hero-copy,.hero-visual{grid-column:1/-1}
  .hero-visual{order:-1}
  .flow-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .fact-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .compare-head{top:56px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .header-inner{height:56px;gap:12px}
  .nav-drawer{inset:56px 0 0 0}
  .search-box{display:none}
  .hero{min-height:auto}
  .hero-inner{padding:36px 0 48px}
  .hero-stats{grid-template-columns:1fr;gap:10px}
  .hero-actions .btn{flex:1 1 100%}
  .card-grid{grid-template-columns:1fr}
  .flow-grid{grid-template-columns:1fr}
  .fact-grid{grid-template-columns:1fr}
  .tier-grid{grid-template-columns:1fr}
  .tier-card.is-featured{transform:none}
  .tier-card.is-featured:hover{transform:translateY(-3px)}
  .cta-panel{grid-template-columns:1fr;padding:32px 24px}
  .compare-head{display:none}
  .compare-row{display:block;padding:18px}
  .compare-row .compare-cell{
    border-right:0;border-bottom:1px dashed var(--line);
    padding:10px 0;justify-content:space-between;
  }
  .compare-row .compare-cell:last-child{border-bottom:0}
  .compare-row .compare-cell::before{
    content:attr(data-label);color:var(--muted);font-size:13px;
  }
  .compare-name{
    font-size:16px;font-weight:600;color:var(--brand);
    padding-bottom:12px;margin-bottom:6px;
  }
  .compare-name::before{content:none!important}
  .compare-cell.is-recommend{background:transparent;padding-left:0;padding-right:0}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:480px){
  .btn{width:100%}
  .hero-actions{flex-direction:column}
  .card-meta{flex-wrap:wrap}
  .price-num{font-size:28px}
}

/* roulang page: category1 */
:root{
  --bg:#050B14;
  --bg-2:#0A1424;
  --card-layer:#101E33;
  --primary:#17E0B0;
  --primary-dark:#0FB98F;
  --primary-hi:#4BEFC6;
  --amber:#FFB23E;
  --blue:#2F6BFF;
  --text:#E8EEF7;
  --muted:#93A4BC;
  --stroke:rgba(255,255,255,.10);
  --stroke-strong:rgba(255,255,255,.18);
  --glass:rgba(255,255,255,.055);
  --glass-2:rgba(255,255,255,.08);
  --nav-bg:#FFFFFF;
  --nav-text:#0A1424;
  --nav-border:#E6EBF2;
  --nav-soft:#F4F7FB;
  --r-card:18px;
  --r-panel:22px;
  --r-btn:12px;
  --r-input:12px;
  --r-pill:999px;
  --shadow-card:0 22px 48px -28px rgba(0,0,0,.85),inset 0 1px 0 rgba(255,255,255,.06);
  --shadow-glow:0 0 0 1px rgba(23,224,176,.45),0 12px 32px -12px rgba(23,224,176,.55);
  --ease:cubic-bezier(.2,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--primary);text-decoration:none;transition:color .2s var(--ease),filter .2s var(--ease);}
a:hover{color:var(--primary-hi);}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:600;color:var(--text);}
h1{font-size:clamp(30px,4.4vw,52px);line-height:1.18;letter-spacing:-.01em;}
h2{font-size:clamp(24px,3vw,34px);line-height:1.3;}
h3{font-size:20px;line-height:1.4;}
button,input{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
::selection{background:rgba(23,224,176,.28);color:#fff;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-alt{background:var(--bg-2);}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--muted);margin:0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--primary);
  text-transform:uppercase;
  margin-bottom:16px;
  font-family:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--primary);border-radius:2px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.btn-primary{background:var(--primary);color:#050B14;box-shadow:var(--shadow-glow);}
.btn-primary:hover{color:#050B14;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(23,224,176,.5),0 18px 40px -14px rgba(23,224,176,.7);}
.btn-primary:active{transform:translateY(0) scale(.98);}
.btn-ghost{background:var(--glass);color:var(--text);border-color:var(--stroke-strong);backdrop-filter:blur(14px) saturate(120%);}
.btn-ghost:hover{color:var(--primary);border-color:rgba(23,224,176,.55);background:rgba(23,224,176,.06);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0) scale(.98);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}
.btn-line{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:14px;color:var(--primary);}
.btn-line .arrow{transition:transform .22s var(--ease);}
.btn-line:hover .arrow{transform:translateX(3px);}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 10px;
  border-radius:var(--r-pill);
  font-size:12px;font-weight:600;line-height:1;
}
.badge-glass{background:var(--glass);border:1px solid rgba(23,224,176,.4);color:var(--primary);}
.badge-amber{background:var(--amber);color:#2A1A00;}
.badge-lock{background:rgba(5,11,20,.72);border:1px solid var(--stroke-strong);color:#fff;}
.badge-plain{background:rgba(47,107,255,.16);border:1px solid rgba(47,107,255,.4);color:#9DBBFF;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:100;
  background:var(--nav-bg);
  border-bottom:1px solid var(--nav-border);
  box-shadow:0 1px 2px rgba(16,24,40,.05);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 24px -10px rgba(16,24,40,.22);}
.header-inner{display:flex;align-items:center;gap:24px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--nav-text);}
.brand:hover{color:var(--nav-text);}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;
  display:flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:rgba(15,185,143,.10);
  border:1px solid rgba(15,185,143,.35);
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{font-size:18px;font-weight:600;letter-spacing:-.01em;color:var(--nav-text);}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1 1 auto;}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  height:64px;padding:0 14px;
  font-size:15px;font-weight:500;
  color:#3B4A60;
  border-radius:8px;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;
  background:var(--primary);border-radius:2px 2px 0 0;
  transform:scaleX(0);transform-origin:center;transition:transform .22s var(--ease);
}
.nav-link:hover{color:var(--primary-dark);background:rgba(23,224,176,.08);}
.nav-link.is-active{color:var(--primary-dark);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;margin-left:auto;}
.nav-search{position:relative;display:flex;align-items:center;}
.nav-search svg{position:absolute;left:13px;width:16px;height:16px;stroke:#8797AC;fill:none;pointer-events:none;}
.nav-search input{
  width:220px;height:40px;
  padding:0 14px 0 36px;
  border-radius:var(--r-pill);
  border:1px solid var(--nav-border);
  background:var(--nav-soft);
  color:var(--nav-text);
  font-size:14px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.nav-search input::placeholder{color:#8797AC;}
.nav-search input:focus{
  outline:none;background:#fff;
  border-color:var(--primary-dark);
  box-shadow:0 0 0 4px rgba(23,224,176,.18);
}
.nav-toggle{
  display:none;width:42px;height:42px;
  border-radius:10px;border:1px solid var(--nav-border);
  background:#fff;cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--nav-text);border-radius:2px;transition:transform .22s var(--ease),opacity .22s var(--ease);}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

.mobile-drawer{
  position:fixed;left:0;right:0;top:64px;bottom:0;
  background:#fff;z-index:95;
  display:none;flex-direction:column;
  padding:8px 16px 32px;overflow-y:auto;
}
.mobile-drawer.is-open{display:flex;}
.mobile-drawer .drawer-link{
  display:flex;align-items:center;height:52px;
  font-size:16px;font-weight:500;color:var(--nav-text);
  border-bottom:1px solid #EEF2F7;
}
.mobile-drawer .drawer-link.is-active{color:var(--primary-dark);font-weight:600;}
.mobile-drawer .drawer-search{position:relative;margin:16px 0 8px;}
.mobile-drawer .drawer-search input{
  width:100%;height:44px;border-radius:var(--r-pill);
  border:1px solid var(--nav-border);background:var(--nav-soft);
  padding:0 16px;color:var(--nav-text);
}
.mobile-drawer .btn{margin-top:16px;}

/* ============ 面包屑 ============ */
.breadcrumb-bar{
  background:#070E1A;
  border-bottom:1px solid var(--stroke);
  font-size:13px;
}
.breadcrumb-bar .container{display:flex;align-items:center;height:44px;}
.breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;color:var(--muted);}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:rgba(147,164,188,.5);}
.breadcrumb .current{color:var(--primary);}

/* ============ Hero ============ */
.hero{
  position:relative;
  display:flex;align-items:center;
  min-height:clamp(520px,68vh,720px);
  overflow:hidden;
  background:var(--bg);
  border-top:1px solid rgba(23,224,176,.12);
}
.hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  opacity:.5;transform:scale(1.02);
}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,11,20,.92) 0%,rgba(5,11,20,.55) 55%,rgba(5,11,20,.96) 100%);
}
.hero-inner{position:relative;z-index:2;padding:88px 0;}
.hero-inner.centered{
  display:flex;flex-direction:column;align-items:center;text-align:center;
}
.hero-inner.centered .hero-sub{max-width:760px;}
.hero-badge{margin-bottom:22px;}
.hero h1{max-width:960px;margin-bottom:20px;}
.hero h1 em{font-style:normal;color:var(--primary);}
.hero-sub{font-size:17px;color:#B9C6D8;margin-bottom:32px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;width:100%;max-width:820px;margin-top:52px;
}
.stat{
  padding:20px 22px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--stroke);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px) saturate(120%);
  text-align:left;
}
.stat-num{
  display:block;
  font-size:28px;font-weight:700;line-height:1.2;
  color:var(--amber);
  font-family:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
}
.stat-label{display:block;font-size:13px;color:var(--muted);margin-top:6px;}

/* ============ 锚点条 ============ */
.anchor-bar{
  position:sticky;top:64px;z-index:60;
  background:rgba(10,20,36,.88);
  backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--stroke);
}
.anchor-inner{
  display:flex;align-items:center;gap:8px;
  height:56px;overflow-x:auto;scrollbar-width:none;
}
.anchor-inner::-webkit-scrollbar{display:none;}
.anchor-link{
  position:relative;
  display:inline-flex;align-items:center;height:32px;
  padding:0 16px;
  border-radius:var(--r-pill);
  font-size:14px;font-weight:500;color:var(--muted);
  border:1px solid transparent;
  white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.anchor-link:hover{color:var(--primary);background:rgba(23,224,176,.08);}
.anchor-link.is-active{
  color:var(--primary);
  background:rgba(23,224,176,.10);
  border-color:rgba(23,224,176,.4);
}
.anchor-link::after{
  content:"";position:absolute;left:16px;right:16px;bottom:2px;height:2px;
  background:var(--primary);border-radius:2px;
  transform:scaleX(0);transition:transform .22s var(--ease);
}
.anchor-link.is-active::after{transform:scaleX(1);}

/* ============ 玻璃卡 ============ */
.glass-card{
  background:var(--glass);
  border:1px solid var(--stroke);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px) saturate(120%);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease);
}
.glass-card:hover{
  transform:translateY(-3px);
  border-color:rgba(23,224,176,.35);
  background:var(--glass-2);
  box-shadow:0 28px 56px -30px rgba(0,0,0,.9),inset 0 1px 0 rgba(255,255,255,.08);
}

/* ============ 主体：侧栏 + 条款卡 ============ */
.cat-layout{
  display:grid;
  grid-template-columns:260px minmax(0,1fr);
  gap:24px;
  align-items:start;
}
.cat-side{position:sticky;top:140px;display:flex;flex-direction:column;gap:20px;}
.side-panel{
  background:var(--card-layer);
  border:1px solid var(--stroke);
  border-radius:var(--r-panel);
  padding:22px;
  box-shadow:var(--shadow-card);
}
.side-panel h4{font-size:14px;letter-spacing:.06em;color:var(--muted);font-weight:600;margin-bottom:14px;}
.side-nav li + li{margin-top:2px;}
.side-nav a{
  display:block;
  padding:9px 12px;
  border-radius:10px;
  font-size:14px;
  color:#B9C6D8;
  border-left:2px solid transparent;
  transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.side-nav a:hover{color:var(--primary);background:rgba(23,224,176,.08);border-left-color:var(--primary);}
.side-note{font-size:14px;color:var(--muted);line-height:1.75;margin:0 0 18px;}
.side-meta{font-size:13px;color:var(--muted);border-top:1px solid var(--stroke);padding-top:14px;margin-top:4px;}

.cat-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.clause-card{display:flex;flex-direction:column;gap:12px;height:100%;}
.clause-card h3{font-size:17px;line-height:1.45;}
.clause-card p{font-size:14px;line-height:1.8;color:var(--muted);margin:0;}
.clause-card .clause-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--stroke);}
.clause-index{
  font-family:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
  font-size:13px;font-weight:600;color:var(--primary);
  letter-spacing:.06em;
}

/* ============ 流程步骤 ============ */
.flow-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:20px;}
.flow-step{
  position:relative;
  padding:26px 22px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--stroke);
  box-shadow:var(--shadow-card);
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.flow-step::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,var(--primary),rgba(23,224,176,0));
  border-radius:var(--r-card) var(--r-card) 0 0;
}
.flow-step:hover{transform:translateY(-3px);border-color:rgba(23,224,176,.35);}
.flow-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:11px;
  background:rgba(23,224,176,.12);
  border:1px solid rgba(23,224,176,.4);
  color:var(--primary);
  font-weight:700;font-size:15px;
  font-family:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
  margin-bottom:16px;
}
.flow-step h3{font-size:16px;margin-bottom:8px;}
.flow-step p{font-size:14px;color:var(--muted);margin:0;}

/* ============ 自查清单 ============ */
.check-wrap{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:24px;align-items:stretch;}
.check-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 24px;margin-top:22px;}
.check-item{display:flex;gap:10px;font-size:15px;color:#CBD6E4;line-height:1.7;}
.check-item svg{flex:0 0 18px;width:18px;height:18px;margin-top:5px;stroke:var(--primary);fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;}
.check-media{
  position:relative;border-radius:var(--r-panel);overflow:hidden;
  border:1px solid var(--stroke);box-shadow:var(--shadow-card);
  min-height:300px;
}
.check-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;}
.check-media figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:16px 20px;
  font-size:13px;color:#D4DEEB;
  background:linear-gradient(180deg,rgba(5,11,20,0),rgba(5,11,20,.9));
}

/* ============ 验证方式卡 ============ */
.verify-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.verify-card{display:flex;flex-direction:column;gap:14px;}
.verify-card h3{font-size:18px;}
.verify-card > p{font-size:14px;color:var(--muted);margin:0;}
.spec-list{border-top:1px solid var(--stroke);padding-top:14px;display:flex;flex-direction:column;gap:8px;}
.spec-list li{display:flex;justify-content:space-between;gap:12px;font-size:13px;color:var(--muted);}
.spec-list li span:last-child{color:var(--text);font-family:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;}
.verify-note{
  margin-top:24px;padding:18px 22px;border-radius:var(--r-card);
  background:rgba(255,178,62,.08);
  border:1px solid rgba(255,178,62,.32);
  font-size:14px;color:#F3DCB6;
}

/* ============ FAQ ============ */
.faq-list{
  border-radius:var(--r-panel);
  border:1px solid var(--stroke);
  background:var(--glass);
  overflow:hidden;
  backdrop-filter:blur(14px) saturate(120%);
}
.faq-item + .faq-item{border-top:1px solid var(--stroke);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;
  font-size:16px;font-weight:600;color:var(--text);
  cursor:pointer;list-style:none;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:rgba(23,224,176,.06);color:var(--primary);}
.faq-item summary .chev{
  flex:0 0 18px;width:18px;height:18px;
  stroke:var(--primary);fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;
  transition:transform .2s var(--ease);
}
.faq-item[open] summary .chev{transform:rotate(180deg);}
.faq-answer{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--muted);}
.faq-answer p{margin:0;}

/* ============ CTA ============ */
.cta-panel{
  position:relative;
  display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);
  gap:32px;align-items:center;
  padding:48px;
  border-radius:var(--r-panel);
  border:1px solid rgba(23,224,176,.28);
  background:var(--glass);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px) saturate(120%);
  overflow:hidden;
}
.cta-panel::before{
  content:"";position:absolute;top:-40%;right:-10%;
  width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(23,224,176,.12),rgba(23,224,176,0) 70%);
  pointer-events:none;
}
.cta-panel h2{margin-bottom:16px;position:relative;}
.cta-list{display:flex;flex-direction:column;gap:10px;position:relative;}
.cta-list li{display:flex;gap:10px;font-size:15px;color:#CBD6E4;}
.cta-list li::before{content:"";flex:0 0 6px;width:6px;height:6px;margin-top:11px;border-radius:50%;background:var(--primary);}
.cta-actions{display:flex;flex-direction:column;gap:14px;align-items:flex-start;position:relative;}

/* ============ 页脚 ============ */
.site-footer{
  background:#070E1A;
  border-top:1px solid var(--stroke);
  padding:72px 0 28px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));
  gap:40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(23,224,176,.12);border-color:rgba(23,224,176,.4);}
.footer-brand .brand-text{font-size:18px;font-weight:600;color:#fff;}
.footer-desc{font-size:14px;color:var(--muted);line-height:1.85;max-width:360px;margin:0;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600;}
.footer-col ul li + li{margin-top:10px;}
.footer-col ul a{font-size:14px;color:var(--muted);}
.footer-col ul a:hover{color:var(--primary);}
.footer-contact li{font-size:14px;color:var(--muted);line-height:1.7;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  margin-top:52px;padding-top:22px;
  border-top:1px solid var(--stroke);
  font-size:13px;color:var(--muted);
}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .cat-layout{grid-template-columns:220px minmax(0,1fr);}
  .cat-cards{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:1024px){
  .section{padding:72px 0;}
  .main-nav{gap:0;}
  .nav-search input{width:170px;}
  .cat-layout{grid-template-columns:minmax(0,1fr);}
  .cat-side{position:static;flex-direction:row;flex-wrap:wrap;}
  .cat-side .side-panel{flex:1 1 260px;}
  .flow-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
  .check-wrap{grid-template-columns:minmax(0,1fr);}
  .verify-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-panel{grid-template-columns:minmax(0,1fr);padding:36px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .header-inner{height:56px;}
  .main-nav{display:none;}
  .nav-search{display:none;}
  .nav-toggle{display:flex;}
  .header-actions .btn-sm{display:none;}
  .mobile-drawer{top:56px;}
  .anchor-bar{top:56px;}
  .hero-inner{padding:64px 0;}
  .hero-stats{grid-template-columns:minmax(0,1fr);gap:14px;margin-top:36px;}
  .hero-actions{width:100%;}
  .hero-actions .btn{flex:1 1 100%;}
  .cat-cards{grid-template-columns:minmax(0,1fr);}
  .flow-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .check-list{grid-template-columns:minmax(0,1fr);}
  .verify-grid{grid-template-columns:minmax(0,1fr);}
  .cta-panel{padding:28px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  h1{font-size:clamp(26px,7vw,34px);}
  h2{font-size:clamp(22px,5.6vw,28px);}
}
@media (max-width:520px){
  .flow-grid{grid-template-columns:minmax(0,1fr);}
  .hero{min-height:auto;}
  .hero-inner{padding:56px 0 64px;}
  .btn{width:100%;}
  .btn-line{width:auto;}
  .cta-actions{width:100%;}
  .faq-item summary{padding:18px 18px;font-size:15px;}
  .faq-answer{padding:0 18px 20px;}
}

/* roulang page: article */
:root{
  --bg:#050B14;
  --bg-2:#0A1424;
  --card:#101E33;
  --primary:#17E0B0;
  --primary-dark:#0FB98F;
  --amber:#FFB23E;
  --blue:#2F6BFF;
  --text:#E8EEF7;
  --muted:#93A4BC;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --glass:rgba(255,255,255,.055);
  --r-card:18px;
  --r-panel:22px;
  --r-btn:12px;
  --shadow-card:0 22px 48px -28px rgba(0,0,0,.85), inset 0 1px 0 rgba(255,255,255,.06);
  --shadow-glow:0 0 0 1px rgba(23,224,176,.45), 0 12px 32px -12px rgba(23,224,176,.55);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--primary);text-decoration:none;transition:color .2s var(--ease),opacity .2s var(--ease);}
a:hover{color:#4FF0C6;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.3;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(23,224,176,.3);}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}

/* ============ 顶栏 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:#fff;
  border-bottom:1px solid #E6EBF2;
  box-shadow:0 1px 2px rgba(16,24,40,.05);
  transition:box-shadow .28s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 10px 26px -14px rgba(16,24,40,.30);}
.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:64px;
}
.brand{display:flex;align-items:center;gap:10px;flex:none;}
.brand-mark{
  width:36px;height:36px;
  display:grid;place-items:center;
  border-radius:11px;
  background:linear-gradient(135deg,rgba(23,224,176,.18),rgba(47,107,255,.14));
  border:1px solid rgba(23,224,176,.48);
}
.brand-mark svg{width:21px;height:21px;}
.brand-text{
  font-size:18px;
  font-weight:600;
  color:#0A1424;
  letter-spacing:.2px;
  white-space:nowrap;
}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:6px;}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:36px;
  padding:0 12px;
  border-radius:9px;
  font-size:15px;
  font-weight:500;
  color:#44546C;
  white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--primary-dark);background:rgba(23,224,176,.08);}
.nav-link.is-active{color:var(--primary-dark);}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:-1px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
}
.header-tools{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search-box{
  display:flex;align-items:center;gap:8px;
  width:220px;height:40px;
  padding:0 14px;
  border-radius:999px;
  border:1px solid #E1E8F1;
  background:#F7F9FC;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.search-box:focus-within{
  border-color:var(--primary);
  background:#fff;
  box-shadow:0 0 0 4px rgba(23,224,176,.18);
}
.search-box svg{width:16px;height:16px;flex:none;stroke:#8A9AB2;}
.search-box input{
  width:100%;border:0;background:transparent;outline:none;
  font-size:14px;color:#0A1424;
}
.search-box input::placeholder{color:#93A4BC;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;
  padding:0 24px;
  border:1px solid transparent;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn-primary{
  background:var(--primary);
  color:#05231C;
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{
  color:#05231C;
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(23,224,176,.55),0 18px 40px -14px rgba(23,224,176,.6);
}
.btn-primary:active{transform:scale(.98);}
.btn-ghost{
  background:var(--glass);
  border-color:var(--line-strong);
  color:var(--text);
  backdrop-filter:blur(14px) saturate(120%);
}
.btn-ghost:hover{
  border-color:var(--primary);
  background:rgba(23,224,176,.10);
  color:var(--text);
  transform:translateY(-2px);
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  padding:0;border:0;background:transparent;
  color:var(--primary);font-weight:600;cursor:pointer;
}
.btn-text .arrow{transition:transform .2s var(--ease);}
.btn-text:hover .arrow{transform:translateX(3px);}

.nav-toggle{
  display:none;
  width:40px;height:40px;
  border-radius:10px;
  border:1px solid #E1E8F1;
  background:#fff;
  cursor:pointer;
  align-items:center;justify-content:center;
}
.nav-toggle span{
  display:block;position:relative;width:18px;height:2px;border-radius:2px;background:#0A1424;
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:#0A1424;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

.nav-drawer{
  display:none;
  background:#fff;
  border-bottom:1px solid #E6EBF2;
  box-shadow:0 18px 34px -22px rgba(16,24,40,.4);
}
.nav-drawer.is-open{display:block;}
.nav-drawer a{
  display:flex;align-items:center;
  height:52px;
  padding:0 24px;
  font-size:15px;font-weight:500;
  color:#26364C;
  border-bottom:1px solid #EEF2F7;
}
.nav-drawer a:last-child{border-bottom:0;}
.nav-drawer a.is-active{color:var(--primary-dark);background:rgba(23,224,176,.06);}

/* ============ 面包屑 ============ */
.breadcrumb-bar{
  background:var(--bg-2);
  border-top:1px solid rgba(23,224,176,.12);
  border-bottom:1px solid var(--line);
}
.breadcrumb{
  display:flex;align-items:center;gap:8px;
  height:44px;
  font-size:13px;
  color:var(--muted);
  overflow:hidden;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:rgba(147,164,188,.6);}
.breadcrumb .current{
  color:var(--primary);
  max-width:52%;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* ============ 文章头部 ============ */
.article-hero{
  position:relative;
  padding:64px 0 40px;
  background:
    radial-gradient(900px 420px at 12% -10%, rgba(23,224,176,.16), transparent 62%),
    radial-gradient(760px 380px at 92% 0%, rgba(47,107,255,.14), transparent 60%),
    var(--bg-2);
  border-bottom:1px solid var(--line);
}
.article-hero .badge-cat{margin-bottom:18px;}
.article-title{
  font-size:clamp(26px,3.4vw,40px);
  line-height:1.28;
  letter-spacing:.2px;
  max-width:900px;
  color:#F2F7FF;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;
  margin-top:22px;
  font-size:13px;
  color:var(--muted);
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px;}
.article-meta .meta-dot{
  width:6px;height:6px;border-radius:50%;background:var(--primary);
  box-shadow:0 0 0 4px rgba(23,224,176,.16);
}
.article-meta time{font-family:var(--mono);letter-spacing:.4px;}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;
  padding:0 10px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.3px;
}
.badge-cat{
  background:var(--glass);
  border:1px solid rgba(23,224,176,.42);
  color:var(--primary);
  backdrop-filter:blur(14px) saturate(120%);
}
.badge-amber{
  background:var(--amber);
  color:#3A2400;
}

/* ============ 布局 ============ */
.article-main{padding:64px 0 88px;background:var(--bg);}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 220px;
  gap:48px;
  align-items:start;
}
.article-content{max-width:760px;width:100%;margin:0 auto;}

.article-body{
  font-size:16px;
  line-height:1.9;
  color:#D6E0EE;
  word-wrap:break-word;
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.1em;}
.article-body h2{
  position:relative;
  margin:40px 0 16px;
  padding-left:14px;
  font-size:clamp(20px,2.1vw,24px);
  color:#F2F7FF;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:.22em;bottom:.22em;
  width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--primary),var(--primary-dark));
}
.article-body h3{
  margin:28px 0 12px;
  font-size:20px;
  color:#E9F2FF;
}
.article-body h4{margin:22px 0 10px;font-size:17px;color:#E9F2FF;}
.article-body ul,.article-body ol{
  margin:0 0 1.1em;
  padding-left:22px;
  line-height:1.85;
}
.article-body ul{list-style:none;padding-left:0;}
.article-body ul li{
  position:relative;
  padding-left:20px;
  margin-bottom:8px;
}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:2px;top:.72em;
  width:7px;height:7px;
  border-radius:2px;
  background:var(--primary);
  transform:rotate(45deg);
}
.article-body ol{list-style:decimal;color:#D6E0EE;}
.article-body ol li{margin-bottom:8px;}
.article-body blockquote{
  margin:24px 0;
  padding:18px 22px;
  border-left:3px solid var(--primary);
  border-radius:0 var(--r-card) var(--r-card) 0;
  background:var(--glass);
  border-top:1px solid var(--line);
  border-right:1px solid var(--line);
  border-bottom:1px solid var(--line);
  color:#C9D6E8;
  backdrop-filter:blur(14px) saturate(120%);
}
.article-body img{
  width:100%;
  height:auto;
  margin:22px 0;
  border-radius:12px;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.article-body figure{margin:24px 0;}
.article-body figcaption{
  margin-top:10px;
  font-size:13px;
  color:var(--muted);
  text-align:center;
}
.article-body table{
  width:100%;
  margin:24px 0;
  border-collapse:collapse;
  border:1px solid rgba(23,224,176,.35);
  border-radius:12px;
  overflow:hidden;
  font-size:15px;
}
.article-body th,.article-body td{
  padding:12px 14px;
  border-bottom:1px solid var(--line);
  text-align:left;
  vertical-align:top;
}
.article-body th{
  background:rgba(23,224,176,.10);
  color:#E9F2FF;
  font-weight:600;
}
.article-body tr:last-child td{border-bottom:0;}
.article-body strong{color:#F2F7FF;font-weight:600;}
.article-body a{border-bottom:1px solid rgba(23,224,176,.35);}

.article-empty{
  padding:44px 32px;
  border-radius:var(--r-panel);
  background:var(--glass);
  border:1px solid var(--line);
  text-align:center;
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);
}
.article-empty h2{font-size:22px;margin-bottom:10px;color:#F2F7FF;}
.article-empty p{color:var(--muted);margin-bottom:22px;}

/* ============ 目录 ============ */
.article-toc{
  position:sticky;
  top:96px;
  padding:20px 18px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);
}
.toc-title{
  font-size:13px;
  font-weight:600;
  letter-spacing:1px;
  color:var(--muted);
  margin-bottom:12px;
  text-transform:uppercase;
}
.toc-list li{margin-bottom:2px;}
.toc-list a{
  display:block;
  padding:7px 0 7px 12px;
  font-size:13px;
  line-height:1.5;
  color:var(--muted);
  border-left:2px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.toc-list a:hover{color:var(--primary);}
.toc-list a.is-current{
  color:var(--primary);
  border-left-color:var(--primary);
}
.toc-mobile{display:none;}

/* ============ 标签行 ============ */
.tag-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:40px;
  padding-top:24px;
  border-top:1px solid var(--line);
}
.tag-row .label{font-size:13px;color:var(--muted);}
.tag{
  display:inline-flex;align-items:center;
  height:28px;padding:0 12px;
  border-radius:999px;
  font-size:13px;
  color:#C6D3E6;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.tag:hover{border-color:rgba(23,224,176,.5);color:var(--primary);}

/* ============ 板块通用 ============ */
.section{padding:72px 0;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:32px;
}
.section-head h2{
  font-size:clamp(22px,2.6vw,30px);
  color:#F2F7FF;
}
.section-head .sub{
  margin-top:8px;
  font-size:14px;
  color:var(--muted);
}
.quick-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
}
.quick-card{
  display:flex;gap:14px;
  padding:22px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.quick-card:hover{
  transform:translateY(-3px);
  border-color:rgba(23,224,176,.35);
  box-shadow:0 26px 54px -30px rgba(0,0,0,.95);
}
.quick-icon{
  flex:none;
  width:42px;height:42px;
  display:grid;place-items:center;
  border-radius:12px;
  background:rgba(23,224,176,.12);
  border:1px solid rgba(23,224,176,.34);
}
.quick-icon svg{width:20px;height:20px;stroke:var(--primary);}
.quick-card h3{font-size:17px;margin-bottom:6px;color:#EFF6FF;}
.quick-card p{font-size:14px;color:var(--muted);margin:0;line-height:1.7;}

/* ============ 上下篇 ============ */
.nav-posts{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
  margin-top:8px;
}
.post-nav-card{
  display:flex;flex-direction:column;gap:8px;
  padding:22px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.post-nav-card:hover{
  transform:translateY(-3px);
  border-color:rgba(23,224,176,.35);
}
.post-nav-card .dir{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;color:var(--primary);font-weight:600;
}
.post-nav-card strong{
  font-size:16px;
  color:#EFF6FF;
  font-weight:600;
  line-height:1.55;
}
.post-nav-card.align-right{text-align:right;}
.post-nav-card.align-right .dir{justify-content:flex-end;}

/* ============ 相关推荐 ============ */
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.card{
  position:relative;
  display:flex;flex-direction:column;
  border-radius:var(--r-card);
  background:var(--card);
  border:1px solid var(--line);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.card:hover{
  transform:translateY(-3px);
  border-color:rgba(23,224,176,.35);
  box-shadow:0 30px 60px -32px rgba(0,0,0,.95);
}
.card-thumb{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:rgba(255,255,255,.05);
}
.card-thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .35s var(--ease);
}
.card:hover .card-thumb img{transform:scale(1.03);}
.card-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{
  font-size:17px;
  line-height:1.55;
  color:#EFF6FF;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-body p{
  font-size:14px;
  color:var(--muted);
  margin:0;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  line-height:1.7;
}
.card-meta{
  margin-top:auto;
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;
  color:var(--muted);
}
.card-meta time{font-family:var(--mono);letter-spacing:.4px;}

/* ============ 返回入口 ============ */
.back-panel{
  margin-top:56px;
  padding:36px;
  border-radius:var(--r-panel);
  background:
    radial-gradient(600px 260px at 10% 0%, rgba(23,224,176,.12), transparent 60%),
    var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.back-panel h3{font-size:20px;color:#F2F7FF;margin-bottom:8px;}
.back-panel p{color:var(--muted);font-size:14px;margin:0;max-width:520px;}
.back-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg-2);
  border-top:1px solid var(--line);
  padding:64px 0 28px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:10px;
  background:rgba(23,224,176,.10);
  border:1px solid rgba(23,224,176,.42);
}
.footer-brand .brand-mark svg{width:20px;height:20px;}
.footer-brand .brand-text{
  font-size:17px;font-weight:600;color:#F2F7FF;letter-spacing:.2px;
}
.footer-desc{
  font-size:14px;
  color:var(--muted);
  line-height:1.8;
  margin:0;
  max-width:340px;
}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  color:#E6EEF9;
  margin-bottom:16px;
  letter-spacing:.6px;
}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{
  font-size:14px;
  color:var(--muted);
}
.footer-col ul a:hover{color:var(--primary);}
.footer-contact li{
  font-size:14px;
  color:var(--muted);
  line-height:1.7;
}
.footer-bottom{
  margin-top:44px;
  padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;
  color:rgba(147,164,188,.85);
}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 200px;gap:36px;}
}
@media (max-width:1024px){
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .search-box{width:180px;}
  .article-layout{grid-template-columns:minmax(0,1fr);}
  .article-toc{display:none;}
  .toc-mobile{
    display:block;
    margin-bottom:28px;
    border-radius:var(--r-card);
    background:var(--glass);
    border:1px solid var(--line);
    overflow:hidden;
  }
  .toc-mobile summary{
    cursor:pointer;
    padding:14px 18px;
    font-size:14px;
    font-weight:600;
    color:#E6EEF9;
    list-style:none;
  }
  .toc-mobile summary::-webkit-details-marker{display:none;}
  .toc-mobile summary::after{
    content:"▾";
    float:right;
    color:var(--primary);
    transition:transform .2s var(--ease);
  }
  .toc-mobile[open] summary::after{transform:rotate(180deg);}
  .toc-mobile .toc-list{padding:0 18px 16px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .quick-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .header-inner{height:56px;gap:12px;}
  .brand-text{font-size:16px;}
  .search-box{display:none;}
  .section{padding:56px 0;}
  .article-main{padding:44px 0 64px;}
  .article-hero{padding:44px 0 32px;}
  .quick-grid{grid-template-columns:1fr;}
  .nav-posts{grid-template-columns:1fr;}
  .post-nav-card.align-right{text-align:left;}
  .post-nav-card.align-right .dir{justify-content:flex-start;}
  .back-panel{padding:26px;flex-direction:column;align-items:flex-start;}
  .back-actions{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .brand-text{max-width:150px;overflow:hidden;text-overflow:ellipsis;}
  .card-grid{grid-template-columns:1fr;}
  .article-title{font-size:24px;}
  .btn{width:100%;}
  .back-actions .btn{width:100%;}
  .breadcrumb .current{max-width:44%;}
}

/* roulang page: category2 */
:root{
  --bg:#050B14;
  --bg-2:#0A1424;
  --card:#101E33;
  --primary:#17E0B0;
  --primary-dark:#0FB98F;
  --primary-ink:#0A8F6C;
  --amber:#FFB23E;
  --blue:#2F6BFF;
  --text:#E8EEF7;
  --muted:#93A4BC;
  --line:rgba(255,255,255,.10);
  --glass:rgba(255,255,255,.055);
  --nav-line:#E6EBF2;
  --nav-text:#0A1424;
  --radius-card:18px;
  --radius-panel:22px;
  --radius-btn:12px;
  --radius-pill:999px;
  --shadow-card:0 22px 48px -28px rgba(0,0,0,.85), inset 0 1px 0 rgba(255,255,255,.06);
  --shadow-btn:0 0 0 1px rgba(23,224,176,.45), 0 12px 32px -12px rgba(23,224,176,.55);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,brightness .2s ease}
a:hover{filter:brightness(1.12)}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.3}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button,input{font-family:inherit;font-size:inherit}
button{cursor:pointer;border:none;background:none;color:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-alt{background:var(--bg-2)}
.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(24px,3vw,34px)}
.section-head p{color:var(--muted);font-size:15px;margin-top:10px;max-width:640px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.06em;color:var(--primary);text-transform:uppercase;margin-bottom:12px}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--primary);border-radius:2px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#fff;
  border-bottom:1px solid var(--nav-line);
  box-shadow:0 1px 2px rgba(16,24,40,.05);
  transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:0 8px 24px -10px rgba(16,24,40,.22)}
.header-inner{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:flex;align-items:center;gap:10px;color:var(--nav-text);font-size:18px;font-weight:600;letter-spacing:.01em}
.brand:hover{filter:none;color:var(--primary-ink)}
.brand-mark{display:inline-flex;width:32px;height:32px;border-radius:10px;border:1px solid rgba(23,224,176,.5);align-items:center;justify-content:center;background:rgba(23,224,176,.10)}
.brand-mark svg{width:20px;height:20px}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:8px}
.nav-link{
  display:flex;align-items:center;height:64px;padding:0 15px;
  color:#3B4A63;font-size:15px;font-weight:500;
  border-bottom:2px solid transparent;transition:.2s ease;
}
.nav-link:hover{color:var(--primary-ink);background:rgba(23,224,176,.08);filter:none}
.nav-link.is-active{color:var(--primary-ink);border-bottom-color:var(--primary)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{position:relative;width:220px}
.search-box input{
  width:100%;height:40px;border-radius:var(--radius-pill);
  border:1px solid #DDE4EE;background:#F6F8FC;color:#16233A;
  padding:0 16px 0 38px;font-size:14px;outline:none;transition:.2s ease;
}
.search-box input::placeholder{color:#8895A8}
.search-box input:focus{border-color:var(--primary);background:#fff;box-shadow:0 0 0 4px rgba(23,224,176,.18)}
.search-box svg{position:absolute;left:13px;top:50%;transform:translateY(-50%);width:16px;height:16px;stroke:#8895A8}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .25s ease,background .2s ease,border-color .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#050B14;box-shadow:var(--shadow-btn)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(23,224,176,.55),0 18px 40px -12px rgba(23,224,176,.7);filter:none}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:var(--glass);color:var(--text);border:1px solid rgba(255,255,255,.18);backdrop-filter:blur(14px) saturate(120%)}
.btn-ghost:hover{border-color:var(--primary);background:rgba(23,224,176,.10);transform:translateY(-2px);filter:none}
.btn-ghost:active{transform:scale(.98)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;font-size:15px;background:none;padding:0}
.btn-text svg{width:16px;height:16px;transition:transform .2s ease}
.btn-text:hover svg{transform:translateX(3px)}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid #DDE4EE;background:#F6F8FC;align-items:center;justify-content:center}
.nav-toggle span{display:block;position:relative;width:18px;height:2px;background:#16233A;border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#16233A;border-radius:2px;transition:.2s ease}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:56px 0 0 0;background:#fff;z-index:70;
  padding:16px 20px 32px;display:none;overflow-y:auto;
}
.drawer.is-open{display:block}
.drawer .drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  height:52px;color:#16233A;font-size:16px;font-weight:500;
  border-bottom:1px solid var(--nav-line);
}
.drawer .drawer-link.is-active{color:var(--primary-ink)}
.drawer .drawer-cta{margin-top:20px;width:100%}

/* ---------- 面包屑 ---------- */
.breadcrumb-bar{background:var(--bg-2);border-bottom:1px solid var(--line)}
.breadcrumb{display:flex;align-items:center;gap:10px;height:44px;font-size:13px;color:var(--muted);flex-wrap:wrap}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary);filter:none}
.breadcrumb .sep{color:rgba(147,164,188,.55)}
.breadcrumb .current{color:var(--primary)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;display:flex;align-items:center;min-height:clamp(460px,60vh,620px)}
.hero-bg{position:absolute;inset:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;object-position:center}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,11,20,.94) 0%,rgba(5,11,20,.78) 45%,rgba(5,11,20,.94) 100%)}
.hero-inner{position:relative;z-index:2;width:100%;text-align:center;padding:96px 0}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:var(--radius-pill);
  background:var(--glass);border:1px solid rgba(23,224,176,.35);color:var(--primary);
  font-size:13px;font-weight:500;backdrop-filter:blur(14px) saturate(120%);margin-bottom:22px;
}
.hero-tag .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px rgba(23,224,176,.2)}
.hero h1{font-size:clamp(30px,4.4vw,52px);line-height:1.18;max-width:900px;margin:0 auto}
.hero h1 .accent{color:var(--primary)}
.hero-sub{color:var(--muted);font-size:17px;max-width:640px;margin:20px auto 0}
.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:34px}
.hero-stats{display:flex;gap:18px;justify-content:center;flex-wrap:wrap;margin-top:48px}
.stat-badge{
  min-width:190px;padding:18px 22px;border-radius:var(--radius-card);
  background:var(--glass);border:1px solid rgba(255,255,255,.12);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:0 22px 48px -28px rgba(0,0,0,.85), inset 0 1px 0 rgba(255,255,255,.06);
  text-align:left;
}
.stat-badge b{display:block;font-size:26px;font-weight:700;color:var(--primary);font-family:ui-monospace,"SFMono-Regular",Menlo,monospace;letter-spacing:.02em}
.stat-badge span{display:block;font-size:13px;color:var(--muted);margin-top:4px}

/* ---------- 筛选 ---------- */
.filter-row{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:32px}
.chip{
  padding:9px 20px;border-radius:var(--radius-pill);
  background:var(--glass);border:1px solid var(--line);color:var(--muted);
  font-size:14px;font-weight:500;transition:.2s ease;
}
.chip:hover{color:var(--text);border-color:rgba(23,224,176,.45)}
.chip.is-active{background:var(--primary);border-color:var(--primary);color:#050B14;font-weight:600}

/* ---------- 大卡 ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.feature-card{
  display:grid;grid-template-columns:40% 1fr;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .22s cubic-bezier(.2,.7,.3,1),border-color .22s ease,box-shadow .22s ease;
}
.feature-card:hover{transform:translateY(-3px);border-color:rgba(23,224,176,.35);box-shadow:0 30px 60px -30px rgba(0,0,0,.95)}
.feature-media{position:relative;overflow:hidden;min-height:210px}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s cubic-bezier(.2,.7,.3,1)}
.feature-card:hover .feature-media img{transform:scale(1.03)}
.feature-media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,11,20,.35),rgba(5,11,20,0) 70%)}
.feature-body{padding:26px 26px 24px;display:flex;flex-direction:column;gap:12px}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;
  border-radius:var(--radius-pill);font-size:12px;font-weight:500;width:fit-content;
}
.badge-glass{background:var(--glass);border:1px solid rgba(23,224,176,.4);color:var(--primary)}
.badge-amber{background:var(--amber);color:#2A1B00;font-weight:600}
.feature-body h3{font-size:20px;line-height:1.4}
.feature-body h3 a{color:var(--text)}
.feature-body h3 a:hover{color:var(--primary);filter:none}
.feature-body p{color:var(--muted);font-size:15px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.feature-meta{display:flex;flex-wrap:wrap;gap:14px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
.feature-meta span{display:inline-flex;align-items:center;gap:6px}
.feature-meta .key{color:rgba(147,164,188,.7)}
.feature-card.is-hidden{display:none}

/* ---------- 时间线 ---------- */
.timeline{position:relative;padding-left:30px;border-left:2px solid rgba(23,224,176,.3);max-width:860px}
.tl-item{position:relative;padding-bottom:34px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-36px;top:8px;width:12px;height:12px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 0 4px rgba(23,224,176,.18);
}
.tl-step{font-size:13px;color:var(--primary);font-family:ui-monospace,"SFMono-Regular",Menlo,monospace;letter-spacing:.06em}
.tl-item h3{font-size:19px;margin:6px 0 8px}
.tl-item p{color:var(--muted);font-size:15px}

/* ---------- 说明卡 ---------- */
.note-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.note-card{
  background:var(--glass);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius-panel);
  padding:28px;backdrop-filter:blur(14px) saturate(120%);
  box-shadow:0 22px 48px -28px rgba(0,0,0,.85), inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .22s cubic-bezier(.2,.7,.3,1),border-color .22s ease;
}
.note-card:hover{transform:translateY(-3px);border-color:rgba(23,224,176,.35)}
.note-card h3{font-size:19px;margin-bottom:12px}
.note-list li{position:relative;padding-left:20px;color:var(--muted);font-size:15px;line-height:1.9}
.note-list li::before{content:"";position:absolute;left:0;top:12px;width:7px;height:7px;border-radius:50%;background:var(--primary)}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 4px;font-size:16px;font-weight:600;cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .arrow{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  border:1px solid rgba(255,255,255,.2);display:inline-flex;align-items:center;justify-content:center;
  transition:transform .2s ease,border-color .2s ease;
}
.faq-item summary .arrow svg{width:12px;height:12px;stroke:var(--primary)}
.faq-item[open] summary .arrow{transform:rotate(180deg);border-color:rgba(23,224,176,.6)}
.faq-item summary:hover{color:var(--primary)}
.faq-answer{padding:0 4px 24px;color:var(--muted);font-size:15px;line-height:1.8;max-width:760px}

/* ---------- CTA ---------- */
.cta-panel{
  position:relative;overflow:hidden;
  background:var(--glass);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius-panel);
  padding:44px;backdrop-filter:blur(14px) saturate(120%);
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:0 22px 48px -28px rgba(0,0,0,.85), inset 0 1px 0 rgba(255,255,255,.06);
}
.cta-panel::before{
  content:"";position:absolute;right:-120px;top:-120px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(23,224,176,.12),rgba(23,224,176,0) 70%);
}
.cta-panel h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:14px}
.cta-list{display:flex;flex-wrap:wrap;gap:12px;margin-top:6px}
.cta-list li{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:var(--radius-pill);padding:6px 14px}
.cta-list li svg{width:14px;height:14px;stroke:var(--primary)}
.cta-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;position:relative;z-index:2}

/* ---------- 页脚 ---------- */
.site-footer{background:#040910;border-top:1px solid var(--line);padding:72px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-text{font-size:18px;font-weight:600;color:var(--text)}
.footer-desc{color:var(--muted);font-size:14px;max-width:340px}
.footer-col h4{font-size:15px;color:var(--text);margin-bottom:16px;letter-spacing:.02em}
.footer-col li{margin-bottom:10px}
.footer-col a{color:var(--muted);font-size:14px}
.footer-col a:hover{color:var(--primary);filter:none}
.footer-contact li{color:var(--muted);font-size:14px}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:rgba(147,164,188,.8);font-size:13px;
}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:30px}
}
@media (max-width:1024px){
  .feature-grid{grid-template-columns:1fr}
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .search-box{width:180px}
  .note-grid{grid-template-columns:1fr}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .hero-inner{padding:72px 0}
  .hero-sub{font-size:15px}
  .hero-stats{gap:12px}
  .stat-badge{min-width:0;flex:1 1 160px;padding:14px 16px}
  .search-box{display:none}
  .brand{font-size:16px}
  .brand-mark{width:28px;height:28px}
  .brand-mark svg{width:17px;height:17px}
  .header-inner{gap:12px;height:56px}
  .nav-link{height:56px}
  .section-head{margin-bottom:26px}
  .feature-card{grid-template-columns:1fr}
  .feature-media{min-height:180px}
  .feature-body{padding:22px}
  .cta-panel{padding:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .site-footer{padding:52px 0 24px}
  .timeline{padding-left:22px}
  .tl-item::before{left:-28px;width:10px;height:10px}
}
@media (max-width:520px){
  .hero{min-height:auto}
  .hero-actions .btn{width:100%}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
  .feature-body h3{font-size:18px}
  .stat-badge b{font-size:22px}
}

/* roulang page: category3 */
:root{
  --bg:#050B14;
  --bg-2:#0A1424;
  --card:#101E33;
  --primary:#17E0B0;
  --primary-dark:#0FB98F;
  --amber:#FFB23E;
  --blue:#2F6BFF;
  --text:#E8EEF7;
  --text-2:#93A4BC;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --glass:rgba(255,255,255,.055);
  --r-card:18px;
  --r-panel:22px;
  --r-btn:12px;
  --shadow-glass:0 22px 48px -28px rgba(0,0,0,.85), inset 0 1px 0 rgba(255,255,255,.06);
  --shadow-glow:0 0 0 1px rgba(23,224,176,.45), 0 12px 32px -12px rgba(23,224,176,.55);
  --ease:cubic-bezier(.2,.7,.3,1);
  --header-h:64px;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s var(--ease),opacity .2s var(--ease);}
a:hover{color:#5df0cb;}
button{font-family:inherit;}
input,button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

.container{max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#FFFFFF;
  border-bottom:1px solid #E6EBF2;
  box-shadow:0 1px 2px rgba(16,24,40,.05);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 8px 24px -14px rgba(16,24,40,.28);}
.header-inner{display:flex;align-items:center;gap:20px;height:var(--header-h);}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  border:1.5px solid var(--primary);
  display:grid;place-items:center;
  background:rgba(23,224,176,.08);
  flex-shrink:0;
}
.brand-mark svg{width:19px;height:19px;}
.brand-name{font-size:18px;font-weight:600;color:#0A1424;letter-spacing:-.01em;white-space:nowrap;}

.main-nav{display:flex;align-items:center;gap:2px;margin-left:8px;}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  height:36px;padding:0 13px;
  font-size:15px;font-weight:500;color:#41526B;
  border-radius:10px;
  text-decoration:none;
  white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--primary-dark);background:rgba(23,224,176,.08);}
.nav-link.is-active{color:#0A1424;font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:-1px;height:2px;
  background:var(--primary);border-radius:2px;
}

.header-tools{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search-box{
  display:flex;align-items:center;gap:8px;
  width:220px;height:40px;padding:0 14px;
  border:1px solid #E1E7F0;border-radius:999px;
  background:#F7F9FC;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.search-box svg{width:16px;height:16px;flex-shrink:0;stroke:#8A99AF;}
.search-box input{
  flex:1;min-width:0;border:0;background:transparent;outline:none;
  font-size:14px;color:#0A1424;
}
.search-box input::placeholder{color:#98A6BA;}
.search-box:focus-within{
  background:#fff;border-color:var(--primary);
  box-shadow:0 0 0 4px rgba(23,224,176,.18);
}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:11px;
  border:1px solid #E1E7F0;background:#fff;cursor:pointer;
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#0A1424;border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:#0A1424;border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

.mobile-drawer{
  position:fixed;left:0;right:0;top:var(--header-h);bottom:0;
  background:#fff;z-index:55;
  padding:8px 24px 40px;
  overflow-y:auto;
  opacity:0;transform:translateY(-10px);pointer-events:none;
  transition:opacity .24s var(--ease),transform .24s var(--ease);
}
.mobile-drawer.is-open{opacity:1;transform:translateY(0);pointer-events:auto;}
.mobile-drawer a.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  height:52px;border-bottom:1px solid #EEF2F7;
  color:#0A1424;font-size:16px;font-weight:500;
}
.mobile-drawer a.drawer-link.is-active{color:var(--primary-dark);font-weight:600;}
.mobile-drawer a.drawer-link::after{content:"›";color:#B9C4D4;font-size:20px;line-height:1;}
.drawer-search{
  display:flex;align-items:center;gap:8px;margin:16px 0 8px;
  height:44px;padding:0 16px;border:1px solid #E1E7F0;border-radius:999px;background:#F7F9FC;
}
.drawer-search input{flex:1;border:0;background:transparent;outline:none;font-size:15px;color:#0A1424;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  text-decoration:none;cursor:pointer;
  border:1px solid transparent;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.btn-primary{
  background:var(--primary);color:#050B14;
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{
  color:#050B14;
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(23,224,176,.5),0 18px 40px -14px rgba(23,224,176,.6);
}
.btn-primary:active{transform:scale(.98);}
.btn-ghost{
  background:var(--glass);border-color:var(--line-strong);color:var(--text);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
}
.btn-ghost:hover{
  color:var(--text);border-color:rgba(23,224,176,.6);background:rgba(23,224,176,.08);
  transform:translateY(-2px);
}
.btn-ghost:active{transform:scale(.98);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-size:14px;font-weight:500;background:none;border:0;cursor:pointer;
  padding:0;
}
.btn-text .arrow{transition:transform .22s var(--ease);}
.btn-text:hover .arrow{transform:translateX(3px);}
.header-cta{white-space:nowrap;}
.cta-mini{display:none;}

/* ---------- breadcrumbs ---------- */
.crumbs{background:var(--bg-2);border-bottom:1px solid var(--line);}
.crumbs-inner{display:flex;align-items:center;gap:10px;height:44px;font-size:13px;color:var(--text-2);overflow-x:auto;white-space:nowrap;}
.crumbs a{color:var(--text-2);}
.crumbs a:hover{color:var(--primary);}
.crumbs .sep{color:rgba(255,255,255,.25);}
.crumbs .current{color:var(--primary);}

/* ---------- hero ---------- */
.hero{
  position:relative;
  padding:84px 0 72px;
  background:
    radial-gradient(900px 420px at 8% -20%, rgba(23,224,176,.16), transparent 62%),
    radial-gradient(700px 380px at 92% 10%, rgba(47,107,255,.14), transparent 65%),
    linear-gradient(180deg,#050B14 0%,#081221 100%);
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(23,224,176,.45),transparent);
}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:48px;align-items:end;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:28px;padding:0 12px;margin-bottom:20px;
  border-radius:999px;font-size:13px;letter-spacing:.06em;
  color:var(--primary);background:rgba(23,224,176,.10);
  border:1px solid rgba(23,224,176,.32);
}
.hero h1{
  font-size:clamp(30px,4.4vw,52px);
  line-height:1.18;
  font-weight:600;
  letter-spacing:-.015em;
}
.hero-sub{
  margin-top:20px;max-width:660px;
  font-size:17px;line-height:1.85;color:var(--text-2);
}
.hero-actions{display:flex;flex-direction:column;align-items:flex-end;gap:12px;}
.hero-actions .tip{font-size:13px;color:var(--text-2);white-space:nowrap;}
.hero-meta{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;
  margin-top:44px;
}
.meta-item{
  padding:18px 20px;border-radius:16px;
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-glass);
}
.meta-item strong{
  display:block;font-family:var(--mono);font-size:26px;font-weight:700;color:var(--primary);
  letter-spacing:-.02em;
}
.meta-item span{display:block;margin-top:6px;font-size:13px;color:var(--text-2);}

/* ---------- section base ---------- */
.section{padding:96px 0;}
.section--alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:40px;}
.section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.3;font-weight:600;letter-spacing:-.01em;}
.section-head .lead{margin-top:12px;max-width:640px;font-size:15px;line-height:1.8;color:var(--text-2);}
.section-head .head-extra{flex-shrink:0;}

/* ---------- badge ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:500;line-height:1;
}
.badge-glass{background:rgba(23,224,176,.10);border:1px solid rgba(23,224,176,.35);color:var(--primary);}
.badge-amber{background:rgba(255,178,62,.15);border:1px solid rgba(255,178,62,.45);color:var(--amber);}

/* ---------- mosaic ---------- */
.mosaic{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  grid-template-rows:auto auto;
  gap:24px;
}
.mc{
  position:relative;
  display:flex;flex-direction:column;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-glass);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  overflow:hidden;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.mc:hover{transform:translateY(-3px);border-color:rgba(23,224,176,.35);box-shadow:0 30px 60px -32px rgba(0,0,0,.92);}
.mc-tall{grid-column:1 / span 2;grid-row:1 / span 2;}
.mc-a{grid-column:3 / span 1;grid-row:1;}
.mc-b{grid-column:4 / span 1;grid-row:1;}
.mc-wide{grid-column:3 / span 2;grid-row:2;flex-direction:row;}
.mc-media{position:relative;overflow:hidden;background:var(--card);}
.mc-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.mc:hover .mc-media img{transform:scale(1.03);}
.mc-tall .mc-media{flex:1;min-height:240px;}
.mc-a .mc-media,.mc-b .mc-media{aspect-ratio:16/9;}
.mc-wide .mc-media{width:42%;flex-shrink:0;}
.mc-wide .mc-body{flex:1;}
.mc-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,11,20,0) 40%,rgba(5,11,20,.55) 100%);
}
.mc-wide .mc-media::after{background:linear-gradient(90deg,rgba(5,11,20,.15),rgba(5,11,20,.45));}
.mc-body{padding:22px;display:flex;flex-direction:column;gap:10px;}
.mc-body h3{font-size:20px;line-height:1.4;font-weight:600;}
.mc-body p{font-size:15px;line-height:1.8;color:var(--text-2);}
.mc-body .mc-link{margin-top:auto;padding-top:6px;font-size:14px;font-weight:500;display:inline-flex;align-items:center;gap:6px;color:var(--primary);}
.mc-body .mc-link .arrow{transition:transform .22s var(--ease);}
.mc-body .mc-link:hover .arrow{transform:translateX(3px);}

/* ---------- compare ---------- */
.compare-head{
  display:grid;grid-template-columns:1.15fr 1.5fr 1fr .9fr;gap:24px;
  padding:14px 22px;border-radius:14px;
  background:rgba(255,255,255,.06);
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  font-size:13px;color:var(--text-2);letter-spacing:.02em;
}
.compare-row{
  display:grid;grid-template-columns:1.15fr 1.5fr 1fr .9fr;gap:24px;align-items:center;
  padding:22px;margin-top:12px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-glass);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.compare-row:hover{transform:translateY(-3px);border-color:rgba(23,224,176,.35);box-shadow:0 30px 60px -32px rgba(0,0,0,.92);}
.compare-row .cell{min-width:0;}
.cell-name{font-size:16px;font-weight:600;line-height:1.5;}
.cell-note{display:block;margin-top:6px;font-size:13px;color:var(--text-2);line-height:1.6;}
.cell-text{font-size:14px;color:var(--text-2);line-height:1.7;}
.cell-state{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:500;}
.state-ok{color:var(--primary);}
.state-wait{color:var(--amber);}
.state-ok svg,.state-wait svg{width:16px;height:16px;flex-shrink:0;}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;position:relative;}
.steps::before{
  content:"";position:absolute;left:22px;right:22px;top:36px;height:1px;
  background:linear-gradient(90deg,rgba(23,224,176,0),rgba(23,224,176,.4),rgba(23,224,176,0));
  pointer-events:none;
}
.step{
  position:relative;
  padding:26px 24px 28px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-glass);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.step:hover{transform:translateY(-3px);border-color:rgba(23,224,176,.35);}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:11px;
  font-family:var(--mono);font-size:14px;font-weight:700;
  color:#050B14;background:var(--primary);
  box-shadow:0 10px 24px -12px rgba(23,224,176,.7);
}
.step h3{margin-top:18px;font-size:18px;font-weight:600;line-height:1.5;}
.step p{margin-top:10px;font-size:15px;line-height:1.8;color:var(--text-2);}

/* ---------- faq ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:24px 4px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;color:var(--text);
  transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--primary);}
.faq-item .chev{
  flex-shrink:0;width:26px;height:26px;border-radius:999px;
  display:grid;place-items:center;
  border:1px solid var(--line-strong);
  transition:transform .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.faq-item .chev svg{width:14px;height:14px;stroke:var(--text-2);transition:stroke .2s var(--ease);}
.faq-item[open] .chev{transform:rotate(180deg);border-color:rgba(23,224,176,.5);background:rgba(23,224,176,.1);}
.faq-item[open] .chev svg{stroke:var(--primary);}
.faq-body{padding:0 4px 26px;max-width:840px;font-size:15px;line-height:1.85;color:var(--text-2);}
.faq-body strong{color:var(--text);font-weight:600;}

/* ---------- CTA ---------- */
.cta-panel{
  position:relative;overflow:hidden;
  border-radius:var(--r-panel);
  border:1px solid var(--line);
  background:var(--card);
  padding:52px;
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:48px;align-items:center;
  box-shadow:var(--shadow-glass);
}
.cta-panel .cta-bg{
  position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity:.2;
}
.cta-panel .cta-glow{
  position:absolute;inset:0;
  background:radial-gradient(520px 300px at 78% 50%, rgba(23,224,176,.12), transparent 70%);
}
.cta-inner{position:relative;z-index:1;}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);font-weight:600;line-height:1.35;}
.cta-list{margin-top:20px;display:grid;gap:10px;}
.cta-list li{
  position:relative;padding-left:24px;
  font-size:15px;line-height:1.75;color:var(--text-2);
}
.cta-list li::before{
  content:"";position:absolute;left:2px;top:11px;
  width:8px;height:8px;border-radius:3px;
  background:var(--primary);box-shadow:0 0 12px rgba(23,224,176,.7);
}
.cta-action{position:relative;z-index:1;flex-shrink:0;}

/* ---------- footer ---------- */
.site-footer{
  background:var(--bg-2);
  border-top:1px solid var(--line);
  padding-top:72px;
  color:var(--text-2);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;}
.footer-brand .brand-mark{
  width:34px;height:34px;border-radius:11px;
  border:1.5px solid var(--primary);
  display:grid;place-items:center;background:rgba(23,224,176,.08);
}
.footer-brand .brand-mark svg{width:19px;height:19px;}
.footer-brand .brand-text{font-size:17px;font-weight:600;color:var(--text);}
.footer-desc{margin-top:18px;max-width:380px;font-size:14px;line-height:1.85;color:var(--text-2);}
.footer-col h4{font-size:15px;font-weight:600;color:var(--text);margin-bottom:18px;}
.footer-col ul{display:grid;gap:11px;font-size:14px;}
.footer-col ul a{color:var(--text-2);}
.footer-col ul a:hover{color:var(--primary);}
.footer-contact li{color:var(--text-2);line-height:1.75;}
.footer-bottom{
  margin-top:56px;padding:22px 0;
  border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-2);
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .mosaic{grid-template-columns:repeat(2,minmax(0,1fr));grid-template-rows:auto;}
  .mc-tall{grid-column:span 2;grid-row:auto;}
  .mc-a,.mc-b{grid-column:span 1;grid-row:auto;}
  .mc-wide{grid-column:span 2;grid-row:auto;flex-direction:row;}
  .steps{grid-template-columns:1fr;}
  .steps::before{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-actions{align-items:flex-start;}
  .hero-actions .tip{white-space:normal;}
}
@media (max-width:768px){
  :root{--header-h:56px;}
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .hero{padding:56px 0 48px;}
  .main-nav{display:none;}
  .search-box{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-cta .cta-full{display:none;}
  .header-cta .cta-mini{display:inline;}
  .hero-meta{grid-template-columns:1fr;gap:14px;margin-top:32px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:28px;}
  .mosaic{grid-template-columns:1fr;}
  .mc-tall,.mc-a,.mc-b,.mc-wide{grid-column:span 1;}
  .mc-wide{flex-direction:column;}
  .mc-wide .mc-media{width:100%;aspect-ratio:16/9;}
  .mc-tall .mc-media{min-height:200px;}
  .compare-head{display:none;}
  .compare-row{grid-template-columns:1fr;gap:12px;padding:20px;}
  .compare-row .cell{display:grid;grid-template-columns:82px minmax(0,1fr);gap:10px;align-items:start;}
  .compare-row .cell::before{content:attr(data-label);font-size:13px;color:var(--text-2);}
  .compare-row .cell-name{font-size:15px;}
  .cta-panel{grid-template-columns:1fr;padding:32px 24px;gap:28px;}
  .cta-action{width:100%;}
  .cta-action .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .site-footer{padding-top:52px;}
  .footer-bottom{margin-top:40px;flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .btn{padding:0 20px;}
  .hero h1{font-size:28px;}
  .footer-grid{grid-template-columns:1fr;}
  .brand-name{font-size:16px;}
}