/* roulang page: index */
*,*::before,*::after{box-sizing:border-box}
:root{
  --bg-base:#0B0E14;
  --bg-elev-1:#121826;
  --bg-elev-2:#1A2233;
  --line:rgba(255,255,255,.08);
  --brand:#16E0B0;
  --brand-deep:#0E9C7B;
  --brand-soft:rgba(22,224,176,.14);
  --accent:#7C5CFF;
  --accent-soft:rgba(124,92,255,.12);
  --hot:#FF8A3D;
  --hot-soft:rgba(255,138,61,.12);
  --text-1:#EAF0F7;
  --text-2:#A3AFBF;
  --text-3:#6B7789;
  --radius-card:16px;
  --radius-img:14px;
  --radius-input:12px;
  --radius-pill:999px;
  --radius-badge:8px;
  --shadow-card:0 18px 40px rgba(0,0,0,.45);
  --gap-section:96px;
  --container:1200px;
}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background-color:var(--bg-base);
  background-image:
    radial-gradient(900px 600px at 8% 0%, rgba(22,224,176,.06), transparent 62%),
    radial-gradient(900px 620px at 96% 82%, rgba(124,92,255,.05), transparent 60%);
  background-repeat:no-repeat;
  color:var(--text-1);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
}
img{max-width:100%;display:block;border-radius:var(--radius-img)}
a{color:var(--text-1);text-decoration:none;transition:color .2s ease-out}
a:hover{color:var(--brand)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
::selection{background:var(--brand-soft);color:var(--text-1)}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg-base)}
::-webkit-scrollbar-thumb{background:var(--bg-elev-2);border-radius:var(--radius-pill)}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{max-width:var(--container);margin:0 auto;padding:0 32px;width:100%}
.section{padding:var(--gap-section) 0 0}
.section-title{display:flex;align-items:center;gap:12px;font-size:30px;font-weight:700;line-height:1.3}
.section-title::before{content:"";display:block;width:4px;height:24px;border-radius:2px;background:var(--brand);flex:0 0 auto}
.lead{color:var(--text-2);font-size:15px;max-width:64ch}
.muted{color:var(--text-3)}
.tabnum{font-variant-numeric:tabular-nums;font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace}

/* ---------- 悬浮胶囊导航 ---------- */
.nav-wrap{position:sticky;top:16px;z-index:50;padding:0 20px}
.nav{
  max-width:var(--container);margin:0 auto;
  display:flex;align-items:center;gap:18px;
  padding:10px 12px 10px 18px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:rgba(18,24,38,.62);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:background .25s ease-out, box-shadow .25s ease-out, border-color .25s ease-out;
}
.nav.is-scrolled{background:rgba(11,14,20,.92);border-color:rgba(255,255,255,.12);box-shadow:0 18px 40px rgba(0,0,0,.5)}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{width:34px;height:34px;flex:0 0 auto}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{font-size:15px;font-weight:700;letter-spacing:.01em;color:var(--text-1);white-space:nowrap}
.logo-text span{font-size:11px;color:var(--text-3);letter-spacing:.08em}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto;flex-wrap:wrap}
.nav-menu a{
  display:inline-flex;align-items:center;height:40px;padding:0 14px;
  font-size:15px;font-weight:600;color:var(--text-2);
  border-radius:var(--radius-pill);position:relative;
  transition:color .2s ease-out, background .2s ease-out, transform .2s ease-out;
}
.nav-menu a:hover{color:var(--text-1);background:rgba(255,255,255,.05);transform:translateY(-1px)}
.nav-menu a.is-active{color:var(--brand);background:var(--brand-soft)}
.nav-menu a.is-active::after{content:"";position:absolute;bottom:4px;left:50%;transform:translateX(-50%);width:16px;height:2px;border-radius:2px;background:var(--brand)}
.nav-cta{
  flex:0 0 auto;display:inline-flex;align-items:center;height:44px;padding:0 20px;
  border-radius:var(--radius-pill);background:var(--brand);color:#06231C;font-weight:700;font-size:15px;
  transition:filter .2s ease-out, transform .2s ease-out, box-shadow .2s ease-out;
}
.nav-cta:hover{color:#06231C;filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 4px rgba(22,224,176,.18)}
.nav-cta:active{transform:translateY(0)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:var(--radius-pill);border:1px solid var(--line);align-items:center;justify-content:center;color:var(--text-1)}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-panel{display:none}

/* ---------- Hero ---------- */
.hero{
  position:relative;padding:64px 0 0;
  background-image:linear-gradient(180deg, rgba(11,14,20,.86), rgba(11,14,20,.96)),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:center;padding-bottom:56px}
.status-chip{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 12px;margin-bottom:18px;
  border-radius:var(--radius-badge);background:var(--brand-soft);color:var(--brand);
  font-size:12.5px;font-weight:600;letter-spacing:.04em;
}
.status-chip i{width:7px;height:7px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px rgba(22,224,176,.16)}
.hero h1{font-size:48px;line-height:1.18;font-weight:800;letter-spacing:-.01em}
.hero h1 em{font-style:normal;color:var(--brand);box-shadow:inset 0 -3px 0 rgba(22,224,176,.45)}
.hero-sub{margin-top:16px;font-size:17px;color:var(--text-2);max-width:36ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.trust-bar{display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;margin-top:28px;font-size:13.5px;color:var(--text-2)}
.trust-bar span{display:inline-flex;align-items:center;gap:8px}
.trust-bar b{color:var(--text-1);font-weight:700}
.trust-bar .sep{color:var(--text-3)}
.hero-live{position:relative;border-radius:var(--radius-card);border:1px solid var(--line);overflow:hidden;box-shadow:var(--shadow-card);background:var(--bg-elev-1)}
.hero-live img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0}
.hero-live::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg, rgba(11,14,20,0) 40%, rgba(11,14,20,.86) 100%);pointer-events:none}
.badge-live{
  position:absolute;left:16px;top:16px;z-index:2;
  display:inline-flex;align-items:center;gap:7px;height:28px;padding:0 11px;
  border-radius:var(--radius-badge);background:rgba(255,80,80,.16);color:#FF8A8A;
  font-size:12px;font-weight:700;letter-spacing:.08em;
}
.badge-live i{width:7px;height:7px;border-radius:50%;background:#FF5A5A;animation:pulse 1.6s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(255,90,90,.55)}70%{box-shadow:0 0 0 8px rgba(255,90,90,0)}100%{box-shadow:0 0 0 0 rgba(255,90,90,0)}}
.hero-live-meta{position:absolute;left:16px;right:16px;bottom:16px;z-index:2}
.hero-live-meta h2{font-size:18px;font-weight:600;line-height:1.4}
.hero-live-meta p{font-size:13px;color:var(--text-2);margin-top:4px}

/* ---------- 倒计时带 ---------- */
.countdown-band{
  border-radius:var(--radius-card);border:1px solid var(--line);border-left:3px solid var(--brand);
  background:var(--bg-elev-1);box-shadow:var(--shadow-card);
  padding:22px 26px;display:grid;grid-template-columns:auto 1fr auto;gap:24px;align-items:center;
}
.countdown-head h2{font-size:19px;font-weight:600}
.countdown-head .st{margin-top:8px}
.count-grid{display:flex;align-items:center;gap:8px;justify-content:center}
.count-cell{min-width:74px;padding:10px 6px;border-radius:var(--radius-input);background:var(--bg-elev-2);border:1px solid var(--line);text-align:center}
.count-cell b{display:block;font-size:34px;line-height:1.1;color:var(--hot);font-weight:700}
.count-cell small{display:block;font-size:12px;color:var(--text-3);letter-spacing:.06em;margin-top:2px}
.count-sep{color:var(--text-3);font-size:22px;font-weight:700;padding-bottom:14px}
.countdown-actions{display:flex;gap:10px;flex-wrap:wrap}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--radius-pill);font-weight:700;font-size:15px;height:44px;padding:0 22px;transition:all .2s ease-out;border:1px solid transparent}
.btn-primary{background:var(--brand);color:#06231C}
.btn-primary:hover{color:#06231C;filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 4px rgba(22,224,176,.18)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text-1)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn-hot{background:var(--hot);color:#2A1403}
.btn-hot:hover{color:#2A1403;filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 0 0 4px var(--hot-soft)}

/* ---------- 通用徽章 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;border-radius:var(--radius-badge);font-size:12.5px;letter-spacing:.04em;font-weight:600}
.badge-accent{background:var(--accent-soft);color:#A896FF}
.badge-brand{background:var(--brand-soft);color:var(--brand)}
.badge-time{background:var(--bg-elev-2);color:var(--text-2)}
.badge-hot{background:var(--hot-soft);color:var(--hot)}
.badge-dim{background:rgba(255,255,255,.05);color:var(--text-3)}

/* ---------- 看点列表 ---------- */
.highlight-layout{display:grid;grid-template-columns:300px 1fr;gap:40px;margin-top:32px}
.highlight-list{border-top:1px solid var(--line)}
.highlight-item{
  display:grid;grid-template-columns:56px 1fr 24px;gap:16px;align-items:center;
  padding:20px 12px;border-bottom:1px solid var(--line);
  transition:background .2s ease-out, transform .2s ease-out;
}
.highlight-item:hover{background:var(--bg-elev-1);transform:translateX(4px)}
.highlight-num{font-size:20px;font-weight:800;color:var(--accent);letter-spacing:.04em}
.highlight-item h3{font-size:18px;font-weight:600}
.highlight-item p{font-size:14px;color:var(--text-2);margin-top:4px}
.highlight-arrow{color:var(--text-3);font-size:18px;transition:color .2s ease-out,transform .2s ease-out}
.highlight-item:hover .highlight-arrow{color:var(--brand);transform:translateX(2px)}

/* ---------- 订阅 ---------- */
.subscribe-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin-top:32px;align-items:start}
.value-list{display:grid;gap:14px;margin-top:20px}
.value-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text-2)}
.value-list svg{flex:0 0 auto;margin-top:3px}
.form-card{background:var(--bg-elev-1);border:1px solid var(--line);border-radius:var(--radius-card);padding:28px;box-shadow:var(--shadow-card)}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--text-1)}
.field input[type="text"],.field input[type="email"],.field input[type="tel"]{
  width:100%;height:48px;padding:0 16px;border-radius:var(--radius-input);
  background:var(--bg-elev-2);border:1px solid var(--line);color:var(--text-1);
  transition:border-color .2s ease-out, box-shadow .2s ease-out;
}
.field input::placeholder{color:var(--text-3)}
.field input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px var(--brand-soft)}
.chip-group{display:flex;flex-wrap:wrap;gap:10px}
.chip{position:relative;display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 16px;border-radius:var(--radius-pill);border:1px solid var(--line);background:transparent;color:var(--text-2);font-size:14px;font-weight:600;transition:all .2s ease-out}
.chip input{position:absolute;opacity:0;pointer-events:none}
.chip:hover{border-color:rgba(22,224,176,.45);color:var(--text-1)}
.chip input:checked ~ span{color:var(--brand)}
.chip:has(input:checked){background:var(--brand-soft);border-color:var(--brand);color:var(--brand)}
.form-note{font-size:12.5px;color:var(--text-3);margin-top:14px}
.form-msg{display:none;margin-top:14px;padding:12px 14px;border-radius:var(--radius-input);font-size:14px}
.form-msg.is-ok{display:block;background:var(--brand-soft);color:var(--brand)}
.form-msg.is-err{display:block;background:var(--hot-soft);color:var(--hot);border:1px solid rgba(255,138,61,.5)}

/* ---------- 回放横向带 ---------- */
.replay-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px}
.rail-controls{display:flex;gap:10px}
.rail-btn{width:44px;height:44px;border-radius:var(--radius-pill);border:1px solid var(--line);color:var(--text-2);display:inline-flex;align-items:center;justify-content:center;transition:all .2s ease-out;background:var(--bg-elev-1)}
.rail-btn:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.rail-mask{position:relative;margin-top:28px}
.rail-mask::after{content:"";position:absolute;top:0;right:-32px;width:120px;height:100%;background:linear-gradient(90deg, rgba(11,14,20,0), var(--bg-base));pointer-events:none}
.rail{display:flex;gap:20px;overflow-x:auto;padding:4px 0 18px;scroll-snap-type:x mandatory;scrollbar-width:thin}
.rail::-webkit-scrollbar{height:8px}
.rail-card{flex:0 0 300px;scroll-snap-align:start;background:var(--bg-elev-1);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);transition:transform .2s ease-out, border-color .2s ease-out}
.rail-card:hover{transform:translateY(-2px);border-color:rgba(22,224,176,.35)}
.rail-thumb{position:relative;overflow:hidden}
.rail-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;transition:transform .22s ease-out}
.rail-card:hover .rail-thumb img{transform:scale(1.03)}
.rail-duration{position:absolute;right:10px;bottom:10px}
.rail-body{padding:16px 18px 20px}
.rail-body h3{font-size:17px;font-weight:600;line-height:1.45}
.rail-meta{display:flex;align-items:center;gap:10px;margin-top:12px;font-size:13px;color:var(--text-3)}
.rail-play{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:14px;font-weight:600;color:var(--brand)}
.empty-state{border:1px dashed rgba(255,255,255,.16);border-radius:var(--radius-card);padding:36px 24px;text-align:center;color:var(--text-2);background:var(--bg-elev-1)}
.empty-state svg{margin:0 auto 12px}
.empty-state p{font-size:15px;margin-bottom:16px}

/* ---------- 资讯 ---------- */
.news-layout{display:grid;grid-template-columns:1.15fr 1fr;gap:28px;margin-top:32px}
.lead-card{background:var(--bg-elev-1);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);transition:transform .2s ease-out,border-color .2s ease-out;display:flex;flex-direction:column}
.lead-card:hover{transform:translateY(-2px);border-color:rgba(22,224,176,.35)}
.lead-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}
.lead-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:12px;flex:1}
.lead-body h3{font-size:22px;font-weight:600;line-height:1.45}
.lead-body p{font-size:15px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--text-3)}
.read-link{margin-top:auto;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--brand)}
.news-rows{display:flex;flex-direction:column;gap:12px}
.news-row{display:flex;flex-direction:column;gap:8px;padding:18px 20px;border-radius:var(--radius-card);border:1px solid var(--line);background:var(--bg-elev-1);transition:transform .2s ease-out,border-color .2s ease-out}
.news-row:hover{transform:translateY(-2px);border-color:rgba(22,224,176,.35)}
.news-row h3{font-size:16.5px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-row p{font-size:13.5px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-row .meta-row{font-size:12.5px}

/* ---------- FAQ ---------- */
.faq-grid{margin-top:32px;display:grid;gap:12px;max-width:900px}
.faq-item{border:1px solid var(--line);border-radius:var(--radius-card);background:var(--bg-elev-1);overflow:hidden}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 22px;text-align:left;font-size:17px;font-weight:600;color:var(--text-1);min-height:44px}
.faq-q:hover{color:var(--brand)}
.faq-q .ico{flex:0 0 auto;width:22px;height:22px;border-radius:50%;border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;font-size:14px;color:var(--text-2);transition:transform .2s ease-out,color .2s ease-out,border-color .2s ease-out}
.faq-item.is-open .faq-q .ico{transform:rotate(45deg);color:var(--brand);border-color:var(--brand)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease-out}
.faq-a p{padding:0 22px 22px;color:var(--text-2);font-size:15px}
.faq-item.is-open .faq-a{max-height:320px}

/* ---------- CTA 条 ---------- */
.cta-band{margin-top:var(--gap-section);border-radius:var(--radius-card);border:1px solid var(--line);background:var(--bg-elev-1);box-shadow:var(--shadow-card);padding:32px 34px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.cta-band h2{font-size:24px;font-weight:700}
.cta-band .cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.footer{margin-top:var(--gap-section);border-top:1px solid var(--line);background:var(--bg-elev-1);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
.footer h3{font-size:15px;font-weight:700;letter-spacing:.04em;margin-bottom:16px;color:var(--text-1)}
.footer p{font-size:14px;color:var(--text-2)}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14px;color:var(--text-2)}
.footer-links a:hover{color:var(--brand)}
.footer .logo{margin-bottom:16px}
.footer-bottom{margin-top:48px;border-top:1px solid var(--line);padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--text-3)}
.to-top{display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 18px;border-radius:var(--radius-pill);border:1px solid var(--line);color:var(--text-2);font-size:13.5px;transition:all .2s ease-out}
.to-top:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 24px}
  .hero h1{font-size:42px}
  .highlight-layout{grid-template-columns:260px 1fr;gap:28px}
  .nav-menu a{padding:0 11px;font-size:14px}
}
@media (max-width:1023px){
  :root{--gap-section:72px}
  .nav-menu,.nav-cta{display:none}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .mobile-panel{display:none;margin:10px auto 0;max-width:var(--container);border-radius:var(--radius-card);background:var(--bg-elev-1);border:1px solid var(--line);overflow:hidden}
  .mobile-panel.is-open{display:block}
  .mobile-panel a{display:flex;align-items:center;height:48px;padding:0 20px;font-size:15px;font-weight:600;color:var(--text-2);border-bottom:1px solid var(--line)}
  .mobile-panel a:last-child{border-bottom:0}
  .mobile-panel a.is-active{color:var(--brand);background:var(--brand-soft)}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero h1{font-size:36px}
  .hero-sub{max-width:none}
  .countdown-band{grid-template-columns:1fr;gap:18px}
  .count-grid{justify-content:flex-start;flex-wrap:wrap}
  .countdown-actions .btn{flex:1 1 auto}
  .highlight-layout{grid-template-columns:1fr}
  .subscribe-grid{grid-template-columns:1fr}
  .news-layout{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  :root{--gap-section:56px}
  .nav-wrap{top:8px;padding:0 12px}
  .nav{padding:8px 10px 8px 14px;gap:10px}
  .logo-text b{font-size:14px;white-space:normal}
  .logo-mark{width:30px;height:30px}
  .hero{padding-top:40px}
  .hero h1{font-size:29px}
  .hero-sub{font-size:15.5px}
  .trust-bar{flex-direction:column;align-items:flex-start;gap:8px}
  .trust-bar .sep{display:none}
  .section-title{font-size:23px}
  .count-cell{min-width:0;flex:1 1 0}
  .count-cell b{font-size:28px}
  .count-sep{display:none}
  .btn{width:100%}
  .hero-actions .btn,.countdown-actions .btn,.cta-band .cta-actions .btn{width:100%}
  .faq-q{font-size:15.5px;padding:16px}
  .cta-band{padding:24px 20px}
  .cta-band h2{font-size:20px}
  .rail-mask::after{display:none}
  .rail{padding-left:4px;padding-right:4px}
  .rail-card{flex:0 0 82%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .to-top{width:100%;justify-content:center}
}

/* roulang page: article */
:root{
  --bg-base:#0B0E14;
  --bg-elev-1:#121826;
  --bg-elev-2:#1A2233;
  --line:rgba(255,255,255,.08);
  --brand:#16E0B0;
  --brand-deep:#0E9C7B;
  --brand-soft:rgba(22,224,176,.14);
  --accent:#7C5CFF;
  --accent-soft:rgba(124,92,255,.14);
  --hot:#FF8A3D;
  --text-1:#EAF0F7;
  --text-2:#A3AFBF;
  --text-3:#6B7789;
  --text-body:#D3DCE8;
  --r-card:16px;
  --r-img:14px;
  --r-input:12px;
  --r-pill:999px;
  --r-badge:8px;
  --shadow-card:0 18px 40px rgba(0,0,0,.45);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background-color:var(--bg-base);
  background-image:
    radial-gradient(640px 420px at 6% 2%, rgba(22,224,176,.06), transparent 70%),
    radial-gradient(720px 520px at 98% 98%, rgba(124,92,255,.05), transparent 70%);
  background-attachment:fixed;
  color:var(--text-1);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--text-1);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea,select{font:inherit}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
::selection{background:var(--brand-soft);color:var(--text-1)}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg-base)}
::-webkit-scrollbar-thumb{background:var(--bg-elev-2);border-radius:999px}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.num{font-variant-numeric:tabular-nums;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}

/* 悬浮胶囊导航 */
.nav{
  position:sticky;
  top:16px;
  z-index:50;
  width:calc(100% - 40px);
  max-width:1160px;
  margin:16px auto 0;
  display:flex;
  align-items:center;
  gap:18px;
  padding:8px 12px 8px 18px;
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  background:rgba(18,24,38,.62);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.nav.is-scrolled{
  background:rgba(11,14,20,.92);
  box-shadow:0 18px 40px rgba(0,0,0,.5);
}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{width:36px;height:36px;flex:0 0 auto}
.logo-text{display:flex;flex-direction:column;line-height:1.22}
.logo-text b{font-size:15px;font-weight:700;color:var(--text-1);letter-spacing:.01em;white-space:nowrap}
.logo-text span{font-size:11px;color:var(--text-3);letter-spacing:.06em;white-space:nowrap}
.nav-menu{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-menu a{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:40px;
  padding:0 13px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  color:var(--text-2);
  transition:color .2s ease,background .2s ease,transform .2s ease;
  white-space:nowrap;
}
.nav-menu a:hover{color:var(--text-1);transform:translateY(-1px);background:rgba(255,255,255,.04)}
.nav-menu a.is-active{background:var(--brand-soft);color:var(--brand)}
.nav-menu a.is-active::after{
  content:"";position:absolute;left:50%;bottom:5px;transform:translateX(-50%);
  width:16px;height:2px;border-radius:2px;background:var(--brand);
}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:42px;padding:0 20px;border-radius:var(--r-pill);
  background:var(--brand);color:#06231B;font-size:14.5px;font-weight:700;white-space:nowrap;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.nav-cta:hover{background:#2FE8BD;color:#06231B;transform:translateY(-1px);box-shadow:0 0 0 4px rgba(22,224,176,.18)}
.nav-toggle{display:none;width:44px;height:44px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:var(--r-pill);margin-left:auto}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-1);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text-1);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{background:var(--brand);color:#06231B}
.btn-primary:hover{background:#2FE8BD;color:#06231B;transform:translateY(-1px);box-shadow:0 0 0 4px rgba(22,224,176,.18)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-secondary{border:1px solid var(--line);color:var(--text-1);background:transparent}
.btn-secondary:hover{border-color:var(--brand);color:var(--brand)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}

/* 徽章 / 标签 */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;
  border-radius:var(--r-badge);font-size:12.5px;font-weight:600;letter-spacing:.04em;
}
.badge-brand{background:var(--brand-soft);color:var(--brand)}
.badge-accent{background:var(--accent-soft);color:#A492FF}
.badge-time{background:var(--bg-elev-2);color:var(--text-2)}
.dot-live{width:7px;height:7px;border-radius:50%;background:#FF5A5A;animation:pulse 1.6s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.85)}}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border-radius:var(--r-pill);border:1px solid var(--line);
  background:var(--bg-elev-1);color:var(--text-2);font-size:13px;
  transition:border-color .2s ease,color .2s ease;
}
.tag:hover{border-color:rgba(22,224,176,.4);color:var(--brand)}

/* 面包屑 */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:28px 0 0;font-size:14px;color:var(--text-3);
}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{opacity:.55}
.breadcrumb .current{color:var(--text-3);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* 文章头部 */
.article-head{padding:22px 0 0;max-width:920px}
.article-head h1{
  margin-top:16px;
  font-size:44px;
  line-height:1.18;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--text-1);
}
.article-head h1 em{font-style:normal;color:var(--brand);box-shadow:inset 0 -3px 0 rgba(22,224,176,.35)}
.post-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  margin-top:22px;padding-top:20px;border-top:1px solid var(--line);
  font-size:14px;color:var(--text-2);
}
.post-meta .divider{width:1px;height:14px;background:var(--line)}
.meta-actions{display:flex;align-items:center;gap:8px;margin-left:auto}
.share-btn{
  display:inline-flex;align-items:center;gap:6px;height:36px;padding:0 16px;
  border-radius:var(--r-pill);border:1px solid var(--line);
  font-size:13px;color:var(--text-2);transition:border-color .2s ease,color .2s ease;
}
.share-btn:hover{border-color:var(--brand);color:var(--brand)}

/* 文章布局 */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr);
  gap:48px;margin-top:40px;
}
.article-body{
  max-width:860px;width:100%;
  font-size:16.5px;line-height:1.9;color:var(--text-body);
  overflow-wrap:break-word;word-break:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.15em}
.article-body h2{
  position:relative;margin:48px 0 16px;padding-left:16px;
  font-size:28px;line-height:1.3;font-weight:700;color:var(--text-1);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:7px;width:4px;height:24px;
  border-radius:2px;background:var(--brand);
}
.article-body h3{margin:34px 0 12px;font-size:21px;font-weight:600;color:var(--text-1)}
.article-body h4{margin:26px 0 10px;font-size:17px;font-weight:600;color:var(--text-1)}
.article-body ul,.article-body ol{margin:0 0 1.15em;padding-left:1.35em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:0 0 .6em}
.article-body li::marker{color:var(--brand)}
.article-body a{color:var(--brand);text-decoration:underline;text-decoration-color:rgba(22,224,176,.35);text-underline-offset:3px}
.article-body a:hover{color:#4FF0C8}
.article-body strong{color:var(--text-1);font-weight:700}
.article-body blockquote{
  margin:28px 0;padding:18px 22px;
  background:var(--bg-elev-1);border-left:3px solid var(--accent);
  border-radius:0 var(--r-img) var(--r-img) 0;color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{margin:28px auto;border-radius:var(--r-img)}
.article-body figure{margin:28px 0}
.article-body figcaption{margin-top:12px;text-align:center;font-size:13px;color:var(--text-3)}
.article-body hr{margin:40px 0;border:0;border-top:1px solid var(--line)}
.article-body code{padding:2px 6px;background:var(--bg-elev-2);border-radius:6px;font-size:14px}
.article-body pre{
  margin:24px 0;padding:18px;background:var(--bg-elev-1);
  border:1px solid var(--line);border-radius:var(--r-img);overflow-x:auto;
}
.article-body pre code{background:none;padding:0}
.article-body table{
  display:block;width:100%;overflow-x:auto;
  border:1px solid var(--line);border-radius:var(--r-img);
  border-collapse:collapse;font-size:15px;margin:26px 0;
}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
.article-body thead th{background:var(--bg-elev-2);color:var(--text-1);font-weight:600}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.02)}

/* 侧栏 */
.aside{display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--bg-elev-1);border:1px solid var(--line);
  border-radius:var(--r-card);padding:22px;box-shadow:var(--shadow-card);
}
.side-title{
  margin-bottom:14px;font-size:16px;font-weight:700;color:var(--text-1);
  display:flex;align-items:center;gap:8px;
}
.side-title::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--brand)}
.toc-list{display:flex;flex-direction:column;gap:2px}
.toc-list a{
  display:block;padding:8px 12px;border-left:2px solid var(--line);
  font-size:14px;color:var(--text-2);border-radius:0 8px 8px 0;
  transition:all .2s ease;
}
.toc-list a:hover{border-left-color:var(--brand);color:var(--brand);background:var(--bg-elev-2)}
.side-post{display:block;padding:12px 0;border-bottom:1px solid var(--line)}
.side-post:last-child{border-bottom:0;padding-bottom:0}
.side-post strong{display:block;font-size:14.5px;font-weight:600;line-height:1.55;color:var(--text-1)}
.side-post span{display:block;margin-top:4px;font-size:12.5px;color:var(--text-3)}
.side-post:hover strong{color:var(--brand)}
.side-note{font-size:13.5px;color:var(--text-2);line-height:1.75}
.side-actions{display:flex;flex-direction:column;gap:10px;margin-top:16px}

/* 空态 */
.empty-state{
  display:flex;flex-direction:column;align-items:center;gap:14px;
  max-width:860px;padding:56px 24px;text-align:center;
  border:1px dashed var(--line);border-radius:var(--r-card);
  background:var(--bg-elev-1);
}
.empty-state svg{width:44px;height:44px}
.empty-state p{font-size:15px;color:var(--text-2);margin:0}

/* 文末 */
.article-foot{
  max-width:860px;margin-top:64px;padding-top:32px;border-top:1px solid var(--line);
}
.post-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.post-tags .tag-label{font-size:13px;color:var(--text-3);letter-spacing:.04em}
.prevnext{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:32px}
.prevnext-card{
  display:flex;flex-direction:column;gap:8px;padding:22px;
  background:var(--bg-elev-1);border:1px solid var(--line);
  border-radius:var(--r-card);transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.prevnext-card:hover{transform:translateY(-2px);border-color:rgba(22,224,176,.35);box-shadow:var(--shadow-card)}
.prevnext-card span{font-size:13px;color:var(--text-3)}
.prevnext-card strong{font-size:16px;font-weight:600;line-height:1.55;color:var(--text-1)}
.article-foot .btn{margin-top:32px}

/* 板块标题 */
.section{margin-top:96px}
.section-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:16px;margin-bottom:28px;
}
.section-head h2{
  position:relative;padding-left:16px;
  font-size:30px;font-weight:700;line-height:1.3;color:var(--text-1);
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:7px;width:4px;height:24px;
  border-radius:2px;background:var(--brand);
}
.section-head p{font-size:14.5px;color:var(--text-2);margin-top:8px;padding-left:16px}

/* 推荐卡片 */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.news-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--bg-elev-1);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--shadow-card);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.news-card:hover{transform:translateY(-2px);border-color:rgba(22,224,176,.35)}
.news-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-elev-2)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease-out}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-thumb .badge{position:absolute;left:12px;bottom:12px}
.news-body{display:flex;flex-direction:column;gap:10px;padding:20px}
.news-body h3{font-size:18px;font-weight:600;line-height:1.5;color:var(--text-1)}
.news-card:hover .news-body h3{color:var(--brand)}
.news-body p{
  font-size:14px;color:var(--text-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--text-3)}
.news-more{font-size:13.5px;font-weight:600;color:var(--brand)}

/* CTA 条 */
.cta-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
  padding:32px;background:var(--bg-elev-1);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--shadow-card);
}
.cta-inner h2{font-size:26px;font-weight:700;color:var(--text-1)}
.cta-inner p{margin-top:8px;font-size:14.5px;color:var(--text-2)}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* 页脚 */
.footer{
  margin-top:96px;padding:56px 0 0;
  background:var(--bg-elev-1);border-top:1px solid var(--line);
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px}
.footer p{margin:16px 0 0;font-size:14px;color:var(--text-2);max-width:320px}
.footer h3{margin-bottom:16px;font-size:15px;font-weight:700;color:var(--text-1)}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--text-2)}
.footer-links a:hover{color:var(--brand)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  margin-top:48px;padding:20px 0;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.to-top{color:var(--text-2)}
.to-top:hover{color:var(--brand)}

/* 响应式 */
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:56px}
  .article-body{max-width:100%}
  .aside{position:sticky;top:96px;align-self:start}
  .article-foot{max-width:100%}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .article-head h1{font-size:36px}
  .section{margin-top:72px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
}
@media (max-width:900px){
  .nav{gap:10px;padding:8px 10px 8px 14px}
  .nav-menu{
    display:none;
    position:absolute;top:calc(100% + 10px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;margin-left:0;padding:8px;
    background:var(--bg-elev-1);border:1px solid var(--line);
    border-radius:var(--r-card);box-shadow:var(--shadow-card);
  }
  .nav-menu.is-open{display:flex}
  .nav-menu a{
    min-height:48px;padding:0 14px;border-radius:12px;
    border-bottom:1px solid var(--line);font-size:15px;
  }
  .nav-menu a:last-child{border-bottom:0}
  .nav-menu a.is-active::after{display:none}
  .nav-toggle{display:inline-flex}
  .logo-text span{display:none}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .nav{width:calc(100% - 32px);top:8px;margin-top:12px}
  .breadcrumb{padding-top:20px}
  .article-head{padding-top:16px}
  .article-head h1{font-size:29px}
  .post-meta{gap:10px}
  .meta-actions{margin-left:0;width:100%}
  .article-layout{margin-top:32px;gap:40px}
  .article-body{font-size:16px;line-height:1.85}
  .article-body h2{font-size:23px}
  .article-body h3{font-size:19px}
  .section{margin-top:56px}
  .section-head h2{font-size:24px}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .prevnext{grid-template-columns:minmax(0,1fr)}
  .cta-inner{padding:24px}
  .cta-inner h2{font-size:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .footer{margin-top:56px}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:560px){
  .nav-cta{display:none}
  .logo-mark{width:32px;height:32px}
  .logo-text b{font-size:14px;white-space:normal;line-height:1.25}
}

/* roulang page: category1 */
:root{
  --bg-base:#0B0E14;
  --bg-elev-1:#121826;
  --bg-elev-2:#1A2233;
  --line:rgba(255,255,255,.08);
  --brand:#16E0B0;
  --brand-deep:#0E9C7B;
  --brand-soft:rgba(22,224,176,.14);
  --accent:#7C5CFF;
  --accent-soft:rgba(124,92,255,.12);
  --hot:#FF8A3D;
  --text-1:#EAF0F7;
  --text-2:#A3AFBF;
  --text-3:#6B7789;
  --radius-card:16px;
  --radius-img:14px;
  --radius-input:12px;
  --radius-pill:999px;
  --radius-badge:8px;
  --shadow-card:0 18px 40px rgba(0,0,0,.45);
  --shadow-nav:0 12px 34px rgba(0,0,0,.5);
  --container:1200px;
  --gap:24px;
  --section-gap:96px;
  --font:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text-1);
  background-color:var(--bg-base);
  background-image:
    radial-gradient(760px 520px at 6% 0%,rgba(22,224,176,.06),transparent 62%),
    radial-gradient(720px 520px at 96% 88%,rgba(124,92,255,.05),transparent 62%);
  background-attachment:fixed;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--text-1);text-decoration:none;transition:color .2s ease-out;}
a:hover{color:var(--brand);}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
::selection{background:var(--brand-soft);color:var(--text-1);}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:var(--bg-base);}
::-webkit-scrollbar-thumb{background:var(--bg-elev-2);border-radius:var(--radius-pill);}
::-webkit-scrollbar-thumb:hover{background:#28324a;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:var(--radius-badge);}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}

/* ============ 导航 ============ */
.nav-wrap{position:sticky;top:16px;z-index:60;padding:0 32px;margin-bottom:8px;}
.nav{
  max-width:var(--container);
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:20px;
  padding:10px 12px 10px 18px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:rgba(18,24,38,.62);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  transition:background .25s ease-out,box-shadow .25s ease-out,border-color .25s ease-out;
}
.nav.is-scrolled{
  background:rgba(11,14,20,.92);
  box-shadow:var(--shadow-nav);
  border-color:rgba(255,255,255,.1);
}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{width:38px;height:38px;flex-shrink:0;}
.logo-text{display:flex;flex-direction:column;line-height:1.2;}
.logo-text b{font-size:16px;font-weight:800;letter-spacing:.01em;color:var(--text-1);}
.logo-text span{font-size:11.5px;color:var(--text-3);letter-spacing:.08em;}
.logo:hover .logo-text b{color:var(--brand);}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto;flex-wrap:nowrap;}
.nav-menu a{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:40px;
  padding:0 14px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:600;
  color:var(--text-2);
  white-space:nowrap;
  transition:color .18s ease-out,background .18s ease-out,transform .18s ease-out;
}
.nav-menu a:hover{color:var(--text-1);background:rgba(255,255,255,.05);transform:translateY(-1px);}
.nav-menu a.is-active{color:var(--brand);background:var(--brand-soft);}
.nav-menu a.is-active::after{
  content:"";position:absolute;left:50%;bottom:4px;transform:translateX(-50%);
  width:16px;height:2px;border-radius:2px;background:var(--brand);
}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:0 20px;
  border-radius:var(--radius-pill);
  background:var(--brand);color:#06231C;font-weight:700;font-size:15px;
  box-shadow:0 8px 22px rgba(22,224,176,.22);
  transition:filter .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
  flex-shrink:0;
}
.nav-cta:hover{color:#06231C;filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 4px rgba(22,224,176,.18),0 10px 26px rgba(22,224,176,.26);}
.nav-cta:active{transform:translateY(0);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--radius-pill);
  border:1px solid var(--line);align-items:center;justify-content:center;flex-shrink:0;
}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--text-1);transition:transform .2s ease-out,background .2s ease-out;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--text-1);transition:transform .2s ease-out;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle.is-open span{background:transparent;}
.nav-toggle.is-open span::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span::after{transform:translateY(-6px) rotate(-45deg);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;
  border-radius:var(--radius-pill);
  font-size:15px;font-weight:700;
  transition:filter .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#06231C;box-shadow:0 10px 24px rgba(22,224,176,.2);}
.btn-primary:hover{color:#06231C;filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 4px rgba(22,224,176,.18),0 12px 28px rgba(22,224,176,.24);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--text-1);border:1px solid var(--line);}
.btn-ghost:hover{color:var(--brand);border-color:rgba(22,224,176,.55);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}

/* ============ 面包屑 ============ */
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:14px;color:var(--text-3);}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:rgba(255,255,255,.16);}
.crumb .current{color:var(--text-3);}

/* ============ 分类 Hero ============ */
.hero-cat{
  position:relative;
  margin-top:26px;
  padding:40px 0 34px;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(180deg,rgba(11,14,20,.86),rgba(11,14,20,.96)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.hero-cat::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.6),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.6),transparent 78%);
}
.hero-cat .container{position:relative;z-index:2;}
.hero-cat h1{
  margin-top:18px;
  font-size:44px;
  line-height:1.18;
  letter-spacing:-.01em;
  font-weight:800;
  max-width:820px;
}
.hero-cat h1 em{font-style:normal;color:var(--brand);box-shadow:inset 0 -3px 0 rgba(22,224,176,.35);}
.hero-lead{margin-top:14px;max-width:720px;font-size:17px;color:var(--text-2);}
.pill-bar{
  display:flex;gap:10px;margin-top:26px;overflow-x:auto;padding-bottom:6px;
  scrollbar-width:thin;
}
.pill-bar::-webkit-scrollbar{height:6px;}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  flex:0 0 auto;min-height:44px;padding:0 18px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:rgba(18,24,38,.72);
  color:var(--text-2);font-size:14px;font-weight:600;
}
.pill:hover{color:var(--brand);border-color:rgba(22,224,176,.45);}
.pill.is-active{background:var(--brand-soft);border-color:rgba(22,224,176,.45);color:var(--brand);}
.pill i{width:6px;height:6px;border-radius:50%;background:var(--brand);display:inline-block;}

/* ============ 板块 ============ */
.section{padding-top:var(--section-gap);}
.section-head{display:flex;flex-direction:column;gap:12px;max-width:760px;}
.section-head h2{
  position:relative;padding-left:16px;
  font-size:30px;line-height:1.3;font-weight:700;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;
  width:4px;height:24px;border-radius:2px;background:var(--brand);
}
.section-head p{color:var(--text-2);font-size:16px;}

/* ============ 2 列大卡 ============ */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--gap);margin-top:34px;}
.big-card{
  display:flex;flex-direction:column;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:var(--bg-elev-1);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.big-card:hover{transform:translateY(-2px);border-color:rgba(22,224,176,.35);}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-elev-2);}
.card-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .22s ease-out;}
.big-card:hover .card-media img{transform:scale(1.03);}
.card-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,14,20,.05),rgba(11,14,20,.62));
}
.card-tag{
  position:absolute;left:14px;top:14px;z-index:2;
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--radius-badge);
  background:var(--accent-soft);color:#BCA9FF;
  font-size:12.5px;font-weight:700;letter-spacing:.04em;
  border:1px solid rgba(124,92,255,.28);
}
.card-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-body h3{font-size:21px;font-weight:600;line-height:1.4;}
.card-body p{color:var(--text-2);font-size:15px;}
.card-foot{margin-top:auto;padding-top:6px;display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.card-foot .meta{font-size:13px;color:var(--text-3);letter-spacing:.04em;font-variant-numeric:tabular-nums;}

/* ============ 横向说明条 ============ */
.note-bar{
  margin-top:36px;
  display:flex;align-items:center;gap:20px;flex-wrap:wrap;
  padding:22px 26px;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  border-left:3px solid var(--brand);
  background:var(--bg-elev-1);
}
.note-bar strong{font-size:16px;font-weight:700;color:var(--text-1);}
.note-bar span{color:var(--text-2);font-size:15px;}
.note-bar .spacer{flex:1;}

/* ============ 核对清单 ============ */
.check-wrap{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.35fr);gap:44px;margin-top:34px;align-items:start;}
.check-list{display:flex;flex-direction:column;gap:12px;}
.check-item{
  display:flex;gap:16px;align-items:flex-start;
  padding:20px 22px;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:var(--bg-elev-1);
  transition:transform .2s ease-out,border-color .2s ease-out,background .2s ease-out;
}
.check-item:hover{transform:translateX(4px);border-color:rgba(22,224,176,.35);background:var(--bg-elev-2);}
.check-icon{
  flex:0 0 auto;width:30px;height:30px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(22,224,176,.45);background:var(--brand-soft);
  color:var(--brand);font-size:14px;font-weight:800;
}
.check-item h3{font-size:17px;font-weight:600;}
.check-item p{color:var(--text-2);font-size:14.5px;margin-top:4px;}

.stat-panel{
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:var(--bg-elev-1);
  box-shadow:var(--shadow-card);
  padding:28px;
}
.stat-panel h3{font-size:19px;font-weight:600;margin-bottom:6px;}
.stat-panel .sub{color:var(--text-3);font-size:14px;margin-bottom:22px;}
.stat-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.stat{
  padding:18px;
  border-radius:var(--radius-input);
  background:var(--bg-elev-2);
  border:1px solid var(--line);
}
.stat b{display:block;font-size:28px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;letter-spacing:-.01em;line-height:1.2;}
.stat span{display:block;margin-top:6px;font-size:13px;color:var(--text-2);}
.stat-note{margin-top:20px;font-size:13.5px;color:var(--text-3);}

/* ============ 异常信号面板 ============ */
.warn-panel{
  margin-top:34px;
  border-radius:var(--radius-card);
  border:1px solid rgba(255,138,61,.28);
  background:linear-gradient(180deg,rgba(255,138,61,.08),rgba(255,138,61,.02));
  padding:28px;
}
.warn-panel h3{
  font-size:19px;font-weight:700;color:var(--hot);
  display:flex;align-items:center;gap:10px;margin-bottom:16px;
}
.warn-panel h3::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--hot);box-shadow:0 0 0 4px rgba(255,138,61,.16);}
.warn-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;}
.warn-item{
  padding:18px;
  border-radius:var(--radius-input);
  background:rgba(11,14,20,.56);
  border:1px solid var(--line);
}
.warn-item strong{display:block;font-size:15.5px;font-weight:600;color:var(--text-1);margin-bottom:6px;}
.warn-item span{font-size:14px;color:var(--text-2);}

/* ============ FAQ ============ */
.faq{margin-top:34px;display:flex;flex-direction:column;gap:12px;}
.faq-item{
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:var(--bg-elev-1);
  overflow:hidden;
  transition:border-color .2s ease-out;
}
.faq-item.is-open{border-color:rgba(22,224,176,.35);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;text-align:left;
  font-size:18px;font-weight:600;color:var(--text-1);
  min-height:44px;
}
.faq-q:hover{color:var(--brand);}
.faq-q .sign{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--text-2);font-size:16px;line-height:1;
  transition:transform .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.faq-item.is-open .faq-q .sign{transform:rotate(45deg);color:var(--brand);border-color:rgba(22,224,176,.5);}
.faq-a{padding:0 24px 22px;color:var(--text-2);font-size:15.5px;display:block;}
.faq-a[hidden]{display:none;}

/* ============ CTA 条 ============ */
.cta-bar{
  margin-top:var(--section-gap);
  border-radius:var(--radius-card);
  border:1px solid rgba(22,224,176,.25);
  background:linear-gradient(120deg,rgba(22,224,176,.1),rgba(124,92,255,.08));
  padding:32px;
  display:flex;align-items:center;gap:22px;flex-wrap:wrap;
}
.cta-bar h2{font-size:24px;font-weight:700;line-height:1.35;}
.cta-bar p{color:var(--text-2);font-size:15px;margin-top:6px;}
.cta-bar .cta-actions{margin-left:auto;display:flex;gap:12px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.footer{margin-top:var(--section-gap);border-top:1px solid var(--line);background:var(--bg-elev-1);padding:56px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:36px;}
.footer-grid h3{font-size:15px;font-weight:700;color:var(--text-1);margin-bottom:16px;letter-spacing:.02em;}
.footer-grid p{color:var(--text-2);font-size:14.5px;margin-top:14px;max-width:320px;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{color:var(--text-2);font-size:14.5px;}
.footer-links a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:44px;padding:20px 0;border-top:1px solid var(--line);
  display:flex;align-items:center;gap:16px;flex-wrap:wrap;
  color:var(--text-3);font-size:13.5px;
}
.footer-bottom .to-top{margin-left:auto;color:var(--text-2);}
.footer-bottom .to-top:hover{color:var(--brand);}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container,.nav-wrap{padding:0 24px;}
  .nav{padding:10px 10px 10px 16px;}
  .nav-menu a{padding:0 11px;font-size:14.5px;}
  .hero-cat h1{font-size:40px;}
}
@media (max-width:1023px){
  :root{--section-gap:72px;}
  .nav{flex-wrap:wrap;}
  .nav-menu{
    order:3;width:100%;display:none;flex-direction:column;align-items:stretch;
    gap:0;margin:10px 0 4px;padding:8px;
    border-radius:var(--radius-card);background:var(--bg-elev-1);border:1px solid var(--line);
  }
  .nav-menu.is-open{display:flex;}
  .nav-menu a{min-height:48px;border-radius:var(--radius-input);border-bottom:1px solid var(--line);padding:0 14px;}
  .nav-menu a:last-child{border-bottom:0;}
  .nav-menu a.is-active::after{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-cta{margin-left:auto;}
  .hero-cat h1{font-size:34px;}
  .check-wrap{grid-template-columns:minmax(0,1fr);gap:28px;}
  .warn-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px;}
}
@media (max-width:767px){
  :root{--section-gap:56px;--gap:16px;}
  body{font-size:16px;}
  .container,.nav-wrap{padding:0 20px;}
  .nav-wrap{top:8px;}
  .nav{flex-wrap:wrap;padding:8px 8px 8px 14px;}
  .logo-text b{font-size:15px;}
  .logo-text span{font-size:11px;}
  .nav-cta{padding:0 14px;font-size:14px;}
  .hero-cat{margin-top:16px;padding:28px 0 24px;background-image:linear-gradient(180deg,rgba(11,14,20,.9),rgba(11,14,20,.97)),url("/assets/images/backpic/back-2.webp");}
  .hero-cat h1{font-size:29px;}
  .hero-lead{font-size:16px;}
  .section-head h2{font-size:25px;}
  .grid-2{grid-template-columns:minmax(0,1fr);}
  .stat-row{grid-template-columns:minmax(0,1fr);}
  .warn-grid{grid-template-columns:minmax(0,1fr);}
  .note-bar{padding:18px;gap:14px;}
  .note-bar .spacer{display:none;}
  .btn,.nav-cta,.pill,.faq-q{min-height:44px;}
  .cta-bar{padding:24px;}
  .cta-bar .cta-actions{margin-left:0;width:100%;}
  .cta-bar .cta-actions .btn{flex:1;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .footer-bottom .to-top{margin-left:0;}
  .faq-q{font-size:16.5px;padding:18px 18px;}
  .faq-a{padding:0 18px 18px;}
}

/* roulang page: category2 */
:root{
  --bg-base:#0B0E14;
  --bg-elev-1:#121826;
  --bg-elev-2:#1A2233;
  --line:rgba(255,255,255,.08);
  --brand:#16E0B0;
  --brand-deep:#0E9C7B;
  --brand-soft:rgba(22,224,176,.14);
  --accent:#7C5CFF;
  --hot:#FF8A3D;
  --text-1:#EAF0F7;
  --text-2:#A3AFBF;
  --text-3:#6B7789;
  --r-card:16px;
  --r-img:14px;
  --r-input:12px;
  --r-pill:999px;
  --r-badge:8px;
  --shadow-card:0 18px 40px rgba(0,0,0,.45);
  --shadow-nav:0 14px 34px rgba(0,0,0,.38);
  --gap-section:96px;
  --font-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-num:ui-monospace,SFMono-Regular,Menlo,Consolas,"PingFang SC",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:120px}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text-1);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(680px 460px at 0% 0%, rgba(22,224,176,.06), transparent 62%),
    radial-gradient(720px 520px at 100% 100%, rgba(124,92,255,.05), transparent 62%);
}
img{max-width:100%;display:block}
a{color:var(--text-1);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--brand)}
h1,h2,h3{line-height:1.28;margin:0}
p{margin:0 0 1.15em}
ul,ol{margin:0;padding:0}
button,input,select{font-family:inherit;font-size:inherit;color:inherit}
::selection{background:var(--brand-soft);color:var(--text-1)}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg-base)}
::-webkit-scrollbar-thumb{background:var(--bg-elev-2);border-radius:8px}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

.container{max-width:1200px;margin:0 auto;padding:0 32px;position:relative;z-index:1}

/* ---------- 悬浮胶囊导航 ---------- */
.nav-wrap{position:sticky;top:16px;z-index:50;padding:0 32px;margin-top:16px}
.nav{
  max-width:1200px;
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:18px;
  padding:10px 14px 10px 18px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:rgba(18,24,38,.62);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-nav);
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.nav.is-scrolled{background:rgba(11,14,20,.92);box-shadow:0 18px 42px rgba(0,0,0,.55)}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo:hover{color:var(--text-1)}
.logo-mark{width:34px;height:34px;flex:0 0 auto}
.logo-text{display:flex;flex-direction:column;line-height:1.18}
.logo-text b{font-size:15px;font-weight:700;letter-spacing:.01em;color:var(--text-1)}
.logo-text span{font-size:11px;letter-spacing:.08em;color:var(--text-3)}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-menu a{
  position:relative;
  padding:9px 14px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  color:var(--text-2);
  white-space:nowrap;
  transition:transform .18s ease-out,color .18s ease-out,background .18s ease-out;
}
.nav-menu a:hover{color:var(--text-1);transform:translateY(-1px)}
.nav-menu a.is-active{color:var(--brand);background:var(--brand-soft)}
.nav-menu a.is-active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:3px;
  transform:translateX(-50%);
  width:14px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
}
.nav-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:40px;
  padding:0 20px;
  border-radius:var(--r-pill);
  background:var(--brand);
  color:#06231C;
  font-size:14px;
  font-weight:700;
  white-space:nowrap;
  transition:filter .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.nav-cta:hover{color:#06231C;filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 4px rgba(22,224,176,.18)}
.nav-cta:active{transform:none}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:transparent;
  cursor:pointer;
  position:relative;
  flex:0 0 auto;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute;
  left:50%;
  width:18px;
  height:1.8px;
  background:var(--text-1);
  border-radius:2px;
  transform:translateX(-50%);
  transition:transform .2s ease,opacity .2s ease;
}
.nav-toggle span{top:50%;margin-top:-1px}
.nav-toggle span::before{top:-6px;left:0;transform:none}
.nav-toggle span::after{top:6px;left:0;transform:none}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  font-size:15px;
  font-weight:700;
  cursor:pointer;
  text-decoration:none;
  transition:transform .18s ease-out,filter .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out,color .18s ease-out,background .18s ease-out;
}
.btn-primary{background:var(--brand);color:#06231C}
.btn-primary:hover{color:#06231C;filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 4px rgba(22,224,176,.18)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text-1)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}

/* ---------- 内页 Hero ---------- */
.page-hero{padding:40px 0 0}
.hero-panel{
  position:relative;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:36px 40px 34px;
  background-image:
    linear-gradient(102deg,rgba(11,14,20,.96) 6%,rgba(11,14,20,.78) 52%,rgba(11,14,20,.58) 100%),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  box-shadow:var(--shadow-card);
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-3);margin-bottom:18px}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb span.sep{opacity:.6}
.breadcrumb .current{color:var(--text-3)}
.page-hero h1{
  font-size:clamp(28px,3.6vw,44px);
  font-weight:800;
  letter-spacing:-.01em;
  line-height:1.18;
  max-width:860px;
}
.page-hero h1 em{
  font-style:normal;
  color:var(--brand);
  border-bottom:3px solid rgba(22,224,176,.42);
  padding-bottom:2px;
}
.page-hero .lead{
  margin:16px 0 0;
  max-width:760px;
  font-size:17px;
  color:var(--text-2);
}
.chip-row{
  display:flex;
  gap:10px;
  margin-top:24px;
  overflow-x:auto;
  padding-bottom:6px;
  scrollbar-width:thin;
}
.chip{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 18px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:rgba(18,24,38,.72);
  color:var(--text-2);
  font-size:14px;
  font-weight:600;
  white-space:nowrap;
  transition:border-color .18s ease-out,color .18s ease-out,transform .18s ease-out;
}
.chip:hover{border-color:rgba(22,224,176,.45);color:var(--brand);transform:translateY(-1px)}

/* ---------- 正文双栏 ---------- */
.doc-layout{
  display:grid;
  grid-template-columns:264px minmax(0,1fr);
  gap:48px;
  align-items:start;
  padding:72px 0 0;
}
.toc{
  position:sticky;
  top:104px;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--bg-elev-1);
  box-shadow:var(--shadow-card);
  padding:20px 18px;
}
.toc h2{
  font-size:13px;
  letter-spacing:.08em;
  color:var(--text-3);
  font-weight:700;
  margin-bottom:12px;
}
.toc-list{display:grid;gap:4px}
.toc-list a{
  display:block;
  padding:9px 12px;
  border-radius:var(--r-pill);
  font-size:14px;
  font-weight:600;
  color:var(--text-2);
}
.toc-list a:hover{color:var(--brand);background:rgba(22,224,176,.08)}
.toc-note{
  margin-top:16px;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
  line-height:1.7;
}

.doc-body{min-width:0}
.doc-section{padding-bottom:52px;border-bottom:1px solid var(--line);margin-bottom:52px}
.doc-section:last-of-type{border-bottom:0;margin-bottom:0;padding-bottom:0}
.doc-section h2{
  position:relative;
  padding-left:18px;
  font-size:clamp(22px,2.4vw,30px);
  font-weight:700;
  margin-bottom:14px;
}
.doc-section h2::before{
  content:"";
  position:absolute;
  left:0;
  top:.26em;
  width:4px;
  height:24px;
  border-radius:2px;
  background:var(--brand);
}
.doc-section > p,
.doc-section .body-text > p{max-width:800px;color:var(--text-2);font-size:16px}
.doc-section .body-text{margin-bottom:6px}
.label-line{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-bottom:12px;
  padding:5px 12px;
  border-radius:var(--r-badge);
  background:rgba(124,92,255,.12);
  color:#A895FF;
  font-size:12.5px;
  letter-spacing:.04em;
  font-weight:600;
}
.feature-list{list-style:none;display:grid;gap:10px;margin-top:18px}
.feature-list li{
  position:relative;
  padding-left:26px;
  color:var(--text-2);
  font-size:15.5px;
  line-height:1.7;
}
.feature-list li::before{
  content:"";
  position:absolute;
  left:6px;
  top:.72em;
  width:6px;
  height:6px;
  border-radius:2px;
  background:var(--accent);
}
.feature-list li b{color:var(--text-1)}

.method-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:24px}
.method{
  border:1px solid var(--line);
  border-left:3px solid var(--brand);
  border-radius:var(--r-card);
  background:var(--bg-elev-1);
  padding:20px 20px 22px;
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.method:hover{transform:translateY(-2px);border-color:rgba(22,224,176,.35);box-shadow:var(--shadow-card)}
.method h3{font-size:18px;font-weight:600;margin-bottom:10px}
.method p{max-width:none;margin:0;color:var(--text-2);font-size:15px}
.method .tag{
  display:inline-block;
  margin-top:14px;
  font-size:12px;
  letter-spacing:.04em;
  padding:5px 10px;
  border-radius:var(--r-badge);
  background:var(--bg-elev-2);
  color:var(--text-2);
}

.step-list{list-style:none;counter-reset:step;display:grid;gap:14px;margin-top:22px}
.step-list li{
  position:relative;
  counter-increment:step;
  display:flex;
  gap:14px;
  align-items:flex-start;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--bg-elev-1);
  padding:16px 18px;
  transition:transform .2s ease-out,border-color .2s ease-out;
}
.step-list li:hover{transform:translateX(4px);border-color:rgba(22,224,176,.35)}
.step-list li::before{
  content:counter(step,decimal-leading-zero);
  flex:0 0 auto;
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:14px;
  font-weight:700;
  color:var(--accent);
  padding-top:2px;
}
.step-list li span{color:var(--text-2);font-size:15.5px}
.step-list li span b{color:var(--text-1)}

.checklist{display:grid;gap:12px;margin-top:22px}
.check-item{
  display:flex;
  gap:14px;
  align-items:flex-start;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--bg-elev-1);
  padding:16px 18px;
  transition:border-color .2s ease-out,transform .2s ease-out;
}
.check-item:hover{border-color:rgba(22,224,176,.35);transform:translateY(-2px)}
.check-box{
  flex:0 0 auto;
  width:24px;
  height:24px;
  border-radius:var(--r-badge);
  border:1px solid rgba(22,224,176,.45);
  background:var(--brand-soft);
  display:grid;
  place-items:center;
  color:var(--brand);
  font-size:13px;
  font-weight:700;
  line-height:1;
}
.check-item strong{display:block;font-size:16px;font-weight:600;margin-bottom:2px}
.check-item p{margin:0;max-width:720px;color:var(--text-2);font-size:15px}

.stat-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:24px}
.stat{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--bg-elev-1);
  padding:20px;
}
.stat b{
  display:block;
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:28px;
  font-weight:700;
  color:var(--brand);
  line-height:1.2;
}
.stat span{display:block;margin-top:6px;font-size:14px;color:var(--text-2)}

.doc-figure{
  margin:26px 0 0;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  background:var(--bg-elev-1);
  box-shadow:var(--shadow-card);
}
.doc-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}
.doc-figure figcaption{padding:12px 16px;font-size:13px;color:var(--text-3);border-top:1px solid var(--line)}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:12px;margin-top:24px}
.faq-item{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--bg-elev-1);
  overflow:hidden;
  transition:border-color .2s ease-out;
}
.faq-item[open]{border-color:rgba(22,224,176,.35)}
.faq-item summary{
  cursor:pointer;
  list-style:none;
  display:flex;
  align-items:center;
  gap:12px;
  padding:18px 20px;
  font-size:17px;
  font-weight:600;
  min-height:44px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";
  margin-left:auto;
  color:var(--brand);
  font-size:20px;
  line-height:1;
  transition:transform .2s ease;
}
.faq-item[open] summary::after{content:"−"}
.faq-body{padding:0 20px 20px;color:var(--text-2);font-size:15.5px}
.faq-body p{margin:0}

/* ---------- CTA ---------- */
.cta-band{
  margin-top:72px;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:
    linear-gradient(110deg,rgba(22,224,176,.08),rgba(124,92,255,.06) 70%,transparent),
    var(--bg-elev-1);
  box-shadow:var(--shadow-card);
  padding:32px;
  display:flex;
  flex-wrap:wrap;
  gap:20px;
  align-items:center;
  justify-content:space-between;
}
.cta-band h2{font-size:clamp(20px,2.1vw,26px);font-weight:700;max-width:620px}
.cta-band p{margin:8px 0 0;color:var(--text-2);font-size:15px;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.footer{
  margin-top:var(--gap-section);
  border-top:1px solid var(--line);
  background:var(--bg-elev-1);
  padding:64px 0 28px;
  position:relative;
  z-index:1;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
.footer .logo{margin-bottom:16px}
.footer p{color:var(--text-2);font-size:14.5px;max-width:340px;margin:0}
.footer h3{font-size:15px;font-weight:700;margin-bottom:16px;color:var(--text-1)}
.footer-links{display:grid;gap:10px}
.footer-links a{color:var(--text-2);font-size:14.5px}
.footer-links a:hover{color:var(--brand)}
.footer-bottom{
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:12px 24px;
  align-items:center;
  justify-content:space-between;
  font-size:13.5px;
  color:var(--text-3);
}
.to-top{color:var(--text-3);font-weight:600}
.to-top:hover{color:var(--brand)}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .nav-menu a{padding:9px 11px;font-size:14.5px}
}
@media (max-width:1024px){
  .container{padding:0 24px}
  .nav-wrap{padding:0 24px}
  .doc-layout{grid-template-columns:minmax(0,1fr);gap:32px;padding-top:56px}
  .toc{position:static;top:auto;padding:16px}
  .toc-list{display:flex;gap:8px;overflow-x:auto;padding-bottom:6px}
  .toc-list a{white-space:nowrap;border:1px solid var(--line);padding:8px 14px}
  .toc-note{display:none}
  .method-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat-strip{grid-template-columns:repeat(3,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  :root{--gap-section:72px}
}
@media (max-width:960px){
  .nav{padding:8px 10px 8px 14px;gap:10px;flex-wrap:wrap}
  .nav-menu{
    position:absolute;
    top:calc(100% + 10px);
    left:0;
    right:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    margin-left:0;
    padding:8px;
    border:1px solid var(--line);
    border-radius:var(--r-card);
    background:var(--bg-elev-1);
    box-shadow:var(--shadow-card);
  }
  .nav.is-open .nav-menu{display:flex}
  .nav-menu a{min-height:48px;display:flex;align-items:center;padding:0 16px;border-radius:var(--r-input);font-size:15.5px}
  .nav-menu a + a{border-top:1px solid var(--line);border-radius:0}
  .nav-menu a.is-active::after{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:block;margin-left:auto}
  .nav-menu{margin-top:0}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .nav-wrap{padding:0 20px;top:8px;margin-top:10px}
  .logo-text b{font-size:13.5px}
  .logo-text span{font-size:10px}
  .hero-panel{padding:26px 22px 26px;background-image:linear-gradient(180deg,rgba(11,14,20,.95) 10%,rgba(11,14,20,.82) 100%),url("/assets/images/backpic/back-2.webp")}
  .page-hero{padding-top:28px}
  .page-hero .lead{font-size:15.5px}
  .method-grid{grid-template-columns:minmax(0,1fr)}
  .stat-strip{grid-template-columns:minmax(0,1fr)}
  .doc-section{padding-bottom:40px;margin-bottom:40px}
  .cta-band{padding:24px 20px;flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .btn{width:100%}
  .footer{padding:48px 0 24px}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  :root{--gap-section:56px}
}
@media (max-width:520px){
  .page-hero h1{font-size:28px}
  .chip{height:44px}
  .faq-item summary{font-size:16px;padding:16px}
  .faq-body{padding:0 16px 18px}
  .check-item,.step-list li{padding:14px}
}

/* roulang page: category4 */
:root{
  --bg-base:#0B0E14;
  --bg-elev-1:#121826;
  --bg-elev-2:#1A2233;
  --line:rgba(255,255,255,.08);
  --brand:#16E0B0;
  --brand-deep:#0E9C7B;
  --brand-soft:rgba(22,224,176,.14);
  --accent:#7C5CFF;
  --accent-soft:rgba(124,92,255,.12);
  --hot:#FF8A3D;
  --text-1:#EAF0F7;
  --text-2:#A3AFBF;
  --text-3:#6B7789;
  --radius-card:16px;
  --radius-img:14px;
  --radius-input:12px;
  --radius-pill:999px;
  --radius-badge:8px;
  --shadow-card:0 18px 40px rgba(0,0,0,.45);
  --shadow-nav:0 20px 44px rgba(0,0,0,.5);
  --gap-section:96px;
  --font-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-mono:"SFMono-Regular",ui-monospace,Menlo,Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--text-1);
  background-color:var(--bg-base);
  background-image:
    radial-gradient(900px 520px at 6% -4%, rgba(22,224,176,.06), transparent 62%),
    radial-gradient(760px 480px at 102% 8%, rgba(124,92,255,.05), transparent 60%);
  background-repeat:no-repeat;
}
img{max-width:100%;display:block;border-radius:var(--radius-img)}
a{color:var(--text-1);text-decoration:none;transition:color .2s ease-out}
a:hover{color:var(--brand)}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700}
h1{font-size:clamp(30px,4.4vw,48px);line-height:1.18;letter-spacing:-.01em;font-weight:800}
h2{font-size:clamp(23px,2.6vw,32px)}
h3{font-size:20px;font-weight:600}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0}
::selection{background:var(--brand-soft);color:var(--text-1)}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg-base)}
::-webkit-scrollbar-thumb{background:var(--bg-elev-2);border-radius:8px}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:var(--gap-section) 0 0}
.section-head{display:flex;align-items:flex-start;gap:14px;margin-bottom:28px}
.section-head h2{position:relative;padding-left:16px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:24px;border-radius:2px;background:var(--brand)
}
.section-head .head-note{color:var(--text-2);font-size:15px;max-width:640px;margin-top:10px}
.lead{font-size:17px;color:var(--text-2);max-width:760px}
.muted{color:var(--text-3);font-size:14px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 11px;border-radius:var(--radius-badge);
  font-size:12.5px;letter-spacing:.04em;font-weight:600;
}
.badge-accent{background:var(--accent-soft);color:#B9A8FF}
.badge-brand{background:var(--brand-soft);color:var(--brand)}
.badge-time{background:var(--bg-elev-2);color:var(--text-2)}
.badge-live{background:rgba(255,138,61,.14);color:var(--hot)}
.dot-live{width:8px;height:8px;border-radius:50%;background:#FF4D4D;animation:pulse 1.6s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.82)}}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;font-family:inherit;cursor:pointer;
  border:1px solid transparent;background:transparent;color:var(--text-1);
  transition:transform .2s ease-out,background .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.btn-primary{background:var(--brand);color:#04140F;border-color:var(--brand)}
.btn-primary:hover{background:#31e6bd;color:#04140F;transform:translateY(-1px);box-shadow:0 0 0 4px rgba(22,224,176,.18)}
.btn-primary:active{transform:translateY(0);background:var(--brand-deep)}
.btn-ghost{border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}

/* nav */
.nav-wrap{
  position:sticky;top:16px;z-index:50;
  padding:14px 0 0;
}
.nav{
  max-width:1200px;margin:0 auto;
  display:flex;align-items:center;gap:18px;
  padding:10px 18px 10px 16px;
  border:1px solid var(--line);border-radius:var(--radius-pill);
  background:rgba(18,24,38,.62);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  transition:background .25s ease-out,box-shadow .25s ease-out;
}
.nav.is-scrolled{background:rgba(11,14,20,.92);box-shadow:var(--shadow-nav)}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo:hover{color:var(--text-1)}
.logo-mark{width:36px;height:36px;flex:0 0 auto}
.logo-text{display:flex;flex-direction:column;line-height:1.2}
.logo-text b{font-size:15px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.logo-text span{font-size:11.5px;color:var(--text-3);letter-spacing:.06em;white-space:nowrap}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-menu a{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 14px;
  border-radius:var(--radius-pill);font-size:15px;font-weight:600;color:var(--text-2);
  transition:background .2s ease-out,color .2s ease-out,transform .2s ease-out;
}
.nav-menu a:hover{color:var(--text-1);background:rgba(255,255,255,.04);transform:translateY(-1px)}
.nav-menu a.is-active{color:var(--brand);background:var(--brand-soft)}
.nav-menu a.is-active::after{
  content:"";position:absolute;left:50%;bottom:3px;transform:translateX(-50%);
  width:14px;height:2px;border-radius:2px;background:var(--brand)
}
.nav-cta{
  display:inline-flex;align-items:center;height:42px;padding:0 20px;border-radius:var(--radius-pill);
  background:var(--brand);color:#04140F;font-size:14.5px;font-weight:700;white-space:nowrap;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out;
}
.nav-cta:hover{background:#31e6bd;color:#04140F;transform:translateY(-1px);box-shadow:0 0 0 4px rgba(22,224,176,.18)}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:transparent;cursor:pointer;
}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;background:var(--text-1);border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text-1);border-radius:2px;
  transition:transform .2s ease-out
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav.is-open .nav-toggle span{background:transparent}
.nav.is-open .nav-toggle span::before{transform:translateY(6px) rotate(45deg)}
.nav.is-open .nav-toggle span::after{transform:translateY(-6px) rotate(-45deg)}
.nav-mobile{
  display:none;max-width:1200px;margin:10px auto 0;padding:8px;
  background:var(--bg-elev-1);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
}
.nav-mobile a{
  display:flex;align-items:center;height:48px;padding:0 14px;border-radius:12px;
  font-size:15px;font-weight:600;color:var(--text-2);border-bottom:1px solid var(--line)
}
.nav-mobile a:last-child{border-bottom:0}
.nav-mobile a.is-active{color:var(--brand);background:var(--brand-soft)}

/* hero */
.page-hero{
  position:relative;margin-top:26px;padding:38px 0 26px;
  border-radius:var(--radius-card);overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(11,14,20,.72),rgba(11,14,20,.94)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  border:1px solid var(--line);border-radius:var(--radius-card);
  z-index:-1;
}
.page-hero-inner{max-width:860px}
.page-hero h1 span.hl{color:var(--brand)}
.page-hero .lead{margin-top:14px;min-height:1px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-3);margin-bottom:16px}
.crumbs a{color:var(--text-3)}
.crumbs a:hover{color:var(--brand)}
.crumbs span.sep{color:var(--text-3);opacity:.6}
.crumbs .current{color:var(--text-3)}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:16px}
.pill-track{
  display:flex;gap:10px;overflow-x:auto;padding:4px 2px 10px;margin-top:24px;
  scrollbar-width:thin;
}
.pill-track::-webkit-scrollbar{height:6px}
.pill{
  display:inline-flex;align-items:center;gap:8px;flex:0 0 auto;
  height:40px;padding:0 16px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:rgba(18,24,38,.6);
  font-size:14px;font-weight:600;color:var(--text-2);
  transition:border-color .2s ease-out,color .2s ease-out,transform .2s ease-out
}
.pill:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.pill.is-active{background:var(--brand-soft);border-color:rgba(22,224,176,.4);color:var(--brand)}

/* stats row */
.stat-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.stat-chip{
  display:flex;flex-direction:column;gap:2px;min-width:132px;
  padding:12px 16px;border:1px solid var(--line);border-radius:12px;background:rgba(18,24,38,.66)
}
.stat-chip b{font-size:22px;font-weight:700;font-variant-numeric:tabular-nums;font-family:var(--font-mono);color:var(--brand)}
.stat-chip span{font-size:12.5px;color:var(--text-3);letter-spacing:.03em}

/* comparison table */
.table-card{
  border:1px solid var(--line);border-radius:var(--radius-card);background:var(--bg-elev-1);
  box-shadow:var(--shadow-card);overflow:hidden
}
.table-scroll{overflow-x:auto}
table.cmp{width:100%;min-width:820px;border-collapse:collapse}
table.cmp th,table.cmp td{
  padding:16px 18px;text-align:left;font-size:15px;border-bottom:1px solid var(--line);vertical-align:top
}
table.cmp thead th{
  background:var(--brand-soft);color:var(--brand);font-size:13.5px;font-weight:700;
  letter-spacing:.04em;white-space:nowrap
}
table.cmp tbody th{
  position:sticky;left:0;z-index:2;background:var(--bg-elev-2);
  color:var(--text-1);font-weight:600;font-size:15px;white-space:nowrap;
  border-right:1px solid var(--line)
}
table.cmp tbody tr:nth-child(even) td{background:rgba(255,255,255,.016)}
table.cmp tbody tr:last-child th,table.cmp tbody tr:last-child td{border-bottom:0}
table.cmp td span.yes{color:var(--brand);font-weight:600}
table.cmp td span.no{color:var(--text-3)}
.table-note{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:16px;color:var(--text-3);font-size:14px}

/* scene cards (horizontal scroll band) */
.band{position:relative}
.band-track{
  display:flex;gap:20px;overflow-x:auto;padding:4px 2px 18px;scroll-snap-type:x mandatory
}
.band-track::-webkit-scrollbar{height:8px}
.band-card{
  flex:0 0 300px;scroll-snap-align:start;
  border:1px solid var(--line);border-radius:var(--radius-card);background:var(--bg-elev-1);
  box-shadow:var(--shadow-card);overflow:hidden;
  transition:transform .2s ease-out,border-color .2s ease-out
}
.band-card:hover{transform:translateY(-2px);border-color:rgba(22,224,176,.35)}
.band-thumb{position:relative;aspect-ratio:16/9;overflow:hidden}
.band-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .22s ease-out}
.band-card:hover .band-thumb img{transform:scale(1.03)}
.band-thumb .tagline{position:absolute;left:12px;top:12px}
.band-body{padding:18px}
.band-body p{color:var(--text-2);font-size:14.5px;margin:10px 0 16px}
.band-foot{display:flex;align-items:center;justify-content:space-between;gap:10px}

/* checklist */
.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.check-item{
  display:flex;gap:14px;padding:20px;border:1px solid var(--line);border-radius:var(--radius-card);
  background:var(--bg-elev-1);transition:border-color .2s ease-out,transform .2s ease-out
}
.check-item:hover{border-color:rgba(22,224,176,.35);transform:translateY(-2px)}
.check-num{
  flex:0 0 auto;width:34px;height:34px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:var(--accent-soft);color:#B9A8FF;font-weight:700;font-size:14px;
  font-variant-numeric:tabular-nums;font-family:var(--font-mono)
}
.check-item h3{font-size:17px;margin-bottom:6px}
.check-item p{font-size:14.5px;color:var(--text-2);margin:0}

/* spec list */
.spec-list{border:1px solid var(--line);border-radius:var(--radius-card);background:var(--bg-elev-1);overflow:hidden}
.spec-row{
  display:grid;grid-template-columns:220px 1fr;gap:16px;
  padding:18px 22px;border-bottom:1px solid var(--line);align-items:center
}
.spec-row:last-child{border-bottom:0}
.spec-row dt{color:var(--text-2);font-size:14.5px}
.spec-row dd{margin:0;font-size:15px}
.spec-row strong{color:var(--brand);font-weight:600}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;align-items:start}
.faq-col{display:flex;flex-direction:column;gap:12px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius-card);background:var(--bg-elev-1);
  overflow:hidden;transition:border-color .2s ease-out
}
.faq-item[open]{border-color:rgba(22,224,176,.35)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;gap:14px;
  padding:18px 20px;font-size:16.5px;font-weight:600;color:var(--text-1)
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";margin-left:auto;flex:0 0 auto;color:var(--brand);font-size:20px;line-height:1;
  transition:transform .2s ease-out
}
.faq-item[open] summary::after{content:"−"}
.faq-item summary:hover{color:var(--brand)}
.faq-body{padding:0 20px 20px;color:var(--text-2);font-size:15px}
.faq-body p{margin:0}

/* CTA band */
.cta-band{
  margin-top:var(--gap-section);
  border:1px solid var(--line);border-radius:var(--radius-card);
  background:linear-gradient(120deg,rgba(22,224,176,.08),rgba(124,92,255,.08)),var(--bg-elev-1);
  padding:34px 32px;display:flex;flex-wrap:wrap;align-items:center;gap:18px;
  box-shadow:var(--shadow-card)
}
.cta-band h2{font-size:clamp(20px,2.2vw,26px);flex:1 1 320px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* footer */
.footer{margin-top:var(--gap-section);border-top:1px solid var(--line);background:var(--bg-elev-1)}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1.2fr 1.2fr;gap:32px;
  padding:56px 0 34px
}
.footer h3{font-size:15px;margin-bottom:16px;color:var(--text-1);letter-spacing:.02em}
.footer p{color:var(--text-2);font-size:14.5px;margin-top:16px;max-width:340px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{color:var(--text-2);font-size:14.5px}
.footer-links a:hover{color:var(--brand)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  padding:20px 0 34px;border-top:1px solid var(--line);color:var(--text-3);font-size:13.5px
}
.to-top{color:var(--text-3);font-size:13.5px}
.to-top:hover{color:var(--brand)}

/* responsive */
@media (max-width:1279px){
  .container{padding:0 24px}
  :root{--gap-section:72px}
}
@media (max-width:1023px){
  .nav-menu{display:none}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .nav-cta{display:none}
  .nav.is-open .nav-menu{
    display:flex;flex-direction:column;position:absolute;left:24px;right:24px;top:100%;margin-top:10px;
    background:var(--bg-elev-1);border:1px solid var(--line);border-radius:var(--radius-card);
    padding:8px;box-shadow:var(--shadow-card);gap:0
  }
  .nav.is-open .nav-menu a{
    height:48px;width:100%;border-radius:12px;border-bottom:1px solid var(--line);padding:0 14px
  }
  .nav.is-open .nav-menu a:last-child{border-bottom:0}
  .nav-menu a.is-active::after{display:none}
  .check-grid{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
}
@media (max-width:767px){
  :root{--gap-section:56px}
  .container{padding:0 20px}
  .nav-wrap{top:8px;padding-top:10px}
  .nav{padding:8px 12px 8px 12px;gap:10px}
  .logo-text b{font-size:13.5px;white-space:normal}
  .logo-text span{font-size:10.5px}
  .logo-mark{width:30px;height:30px}
  .page-hero{padding:30px 0 22px}
  .page-hero::before{background-position:60% center}
  .stat-chip{flex:1 1 130px}
  .band-card{flex:0 0 84%}
  .spec-row{grid-template-columns:1fr;gap:6px}
  .cta-band{padding:26px 22px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;padding:44px 0 28px}
  table.cmp th,table.cmp td{padding:14px}
}
@media (max-width:520px){
  h1{font-size:28px}
  .btn{width:100%}
  .band-foot .btn{width:auto}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category3 */
:root{
  --bg-base:#0B0E14;
  --bg-elev-1:#121826;
  --bg-elev-2:#1A2233;
  --line:rgba(255,255,255,.08);
  --brand:#16E0B0;
  --brand-deep:#0E9C7B;
  --brand-soft:rgba(22,224,176,.14);
  --accent:#7C5CFF;
  --accent-soft:rgba(124,92,255,.12);
  --hot:#FF8A3D;
  --text-1:#EAF0F7;
  --text-2:#A3AFBF;
  --text-3:#6B7789;
  --radius-card:16px;
  --radius-img:14px;
  --radius-input:12px;
  --radius-pill:999px;
  --radius-badge:8px;
  --shadow-card:0 18px 40px rgba(0,0,0,.45);
  --container:1200px;
  --sec:96px;
  --font:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text-1);
  background-color:var(--bg-base);
  background-image:
    radial-gradient(900px 520px at 8% -6%, rgba(22,224,176,.06), transparent 62%),
    radial-gradient(820px 520px at 96% 6%, rgba(124,92,255,.05), transparent 60%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:var(--text-1);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand);}
button{font-family:inherit;}
h1,h2,h3,h4,p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
::selection{background:var(--brand-soft);color:var(--text-1);}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:var(--bg-base);}
::-webkit-scrollbar-thumb{background:var(--bg-elev-2);border-radius:8px;}
::-webkit-scrollbar-thumb:hover{background:#243049;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}

/* ---------- 导航 ---------- */
.nav{
  position:sticky;
  top:16px;
  z-index:60;
  width:calc(100% - 40px);
  max-width:var(--container);
  margin:16px auto 0;
  display:flex;
  align-items:center;
  gap:18px;
  padding:10px 12px 10px 18px;
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  background:rgba(18,24,38,.62);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  box-shadow:0 12px 30px rgba(0,0,0,.35);
  transition:background .25s ease,box-shadow .25s ease;
}
.nav.is-scrolled{
  background:rgba(11,14,20,.92);
  box-shadow:0 20px 44px rgba(0,0,0,.6);
}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo:hover{color:var(--text-1);}
.logo-mark{width:34px;height:34px;flex:0 0 auto;}
.logo-text{display:flex;flex-direction:column;line-height:1.16;}
.logo-text b{font-size:15px;font-weight:700;color:var(--text-1);letter-spacing:-.01em;white-space:nowrap;}
.logo-text span{font-size:11px;color:var(--text-3);letter-spacing:.08em;}
.nav-menu{
  display:flex;
  align-items:center;
  gap:2px;
  margin-left:auto;
}
.nav-menu a{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:40px;
  padding:0 13px;
  font-size:15px;
  font-weight:600;
  color:var(--text-2);
  border-radius:var(--radius-pill);
  white-space:nowrap;
  transition:color .2s ease,background .2s ease,transform .2s ease;
}
.nav-menu a:hover{color:var(--text-1);background:rgba(255,255,255,.05);transform:translateY(-1px);}
.nav-menu a.is-active{color:var(--brand);background:var(--brand-soft);}
.nav-menu a.is-active::after{
  content:"";position:absolute;left:50%;bottom:4px;width:14px;height:2px;border-radius:2px;
  background:var(--brand);transform:translateX(-50%);
}
.nav-cta{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:40px;
  padding:0 20px;
  font-size:14px;
  font-weight:700;
  color:#062019;
  background:var(--brand);
  border-radius:var(--radius-pill);
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease;
}
.nav-cta:hover{color:#062019;background:#2BEDC1;transform:translateY(-1px);box-shadow:0 0 0 4px rgba(22,224,176,.18);}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  background:transparent;
  cursor:pointer;
  padding:0;
  position:relative;
  flex:0 0 auto;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:1.8px;border-radius:2px;background:var(--text-1);
  transform:translateX(-50%);transition:transform .2s ease,opacity .2s ease;
}
.nav-toggle span{top:21px;}
.nav-toggle span::before{content:"";top:-6px;left:0;transform:none;}
.nav-toggle span::after{content:"";top:6px;left:0;transform:none;}

/* ---------- 按钮 / 徽章 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 24px;
  font-size:15px;
  font-weight:700;
  border-radius:var(--radius-pill);
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{background:var(--brand);color:#062019;}
.btn-primary:hover{background:#2BEDC1;color:#062019;transform:translateY(-1px);box-shadow:0 0 0 4px rgba(22,224,176,.18);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--text-1);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  border-radius:var(--radius-badge);
}
.badge-brand{background:var(--brand-soft);color:var(--brand);}
.badge-accent{background:var(--accent-soft);color:var(--accent);}
.badge-time{background:var(--bg-elev-2);color:var(--text-2);font-variant-numeric:tabular-nums;}
.badge-live{background:rgba(255,138,61,.14);color:var(--hot);}
.badge-live i{width:7px;height:7px;border-radius:50%;background:var(--hot);animation:pulse 1.6s infinite;}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.35;transform:scale(.8);}}

/* ---------- 首屏 ---------- */
.page-hero{padding:64px 0 0;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--text-3);margin-bottom:22px;
}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--text-3);opacity:.6;}
.breadcrumb .current{color:var(--text-3);}
.page-hero h1{
  font-size:46px;
  line-height:1.18;
  font-weight:800;
  letter-spacing:-.01em;
  max-width:900px;
}
.page-hero h1 em{
  font-style:normal;
  color:var(--brand);
  box-shadow:inset 0 -3px 0 rgba(22,224,176,.35);
}
.hero-lead{
  max-width:720px;
  margin-top:18px;
  font-size:17px;
  color:var(--text-2);
}
.chips{
  display:flex;
  gap:10px;
  margin-top:28px;
  overflow-x:auto;
  padding-bottom:6px;
  scrollbar-width:thin;
}
.chips::-webkit-scrollbar{height:6px;}
.chip{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  min-height:40px;
  padding:0 18px;
  font-size:14px;
  font-weight:600;
  color:var(--text-2);
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  background:rgba(18,24,38,.6);
  transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease;
}
.chip:hover{color:var(--text-1);border-color:rgba(22,224,176,.45);transform:translateY(-1px);}
.chip.is-on{color:var(--brand);background:var(--brand-soft);border-color:rgba(22,224,176,.4);}

/* ---------- 数据条 ---------- */
.stats{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  padding-top:48px;
}
.stat{
  border:1px solid var(--line);
  background:var(--bg-elev-1);
  border-radius:var(--radius-card);
  padding:22px 24px;
  box-shadow:var(--shadow-card);
  transition:border-color .2s ease,transform .2s ease;
}
.stat:hover{border-color:rgba(22,224,176,.35);transform:translateY(-2px);}
.stat b{
  display:block;
  font-size:30px;
  font-weight:800;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.01em;
}
.stat span{display:block;margin-top:6px;font-size:14px;color:var(--text-2);}

/* ---------- 板块通用 ---------- */
.section{padding:var(--sec) 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:36px;
  flex-wrap:wrap;
}
.sec-title{
  position:relative;
  padding-left:16px;
  font-size:30px;
  font-weight:700;
  line-height:1.3;
  letter-spacing:-.01em;
}
.sec-title::before{
  content:"";position:absolute;left:0;top:7px;width:4px;height:24px;border-radius:2px;background:var(--brand);
}
.sec-desc{margin-top:12px;max-width:700px;color:var(--text-2);font-size:16px;}

/* ---------- 时间线 ---------- */
.timeline{max-width:860px;}
.tl-item{
  position:relative;
  display:grid;
  grid-template-columns:56px 1fr;
  gap:20px;
  padding-bottom:32px;
}
.tl-item::before{
  content:"";position:absolute;left:27px;top:60px;bottom:0;width:1px;background:var(--line);
}
.tl-item:last-child{padding-bottom:0;}
.tl-item:last-child::before{display:none;}
.tl-num{
  position:relative;
  z-index:1;
  width:56px;height:56px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(22,224,176,.4);
  border-radius:50%;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:18px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
}
.tl-body{
  border:1px solid var(--line);
  background:var(--bg-elev-1);
  border-radius:var(--radius-card);
  padding:22px 24px;
  box-shadow:var(--shadow-card);
  transition:border-color .2s ease,transform .2s ease;
}
.tl-body:hover{border-color:rgba(22,224,176,.35);transform:translateY(-2px);}
.tl-body h3{font-size:20px;font-weight:600;line-height:1.4;}
.tl-body p{margin-top:10px;color:var(--text-2);font-size:15px;}
.tl-body .btn{margin-top:16px;}

/* ---------- 场次排期 ---------- */
.schedule-layout{
  display:grid;
  grid-template-columns:1fr 1.15fr;
  gap:24px;
  align-items:start;
}
.feature-card{
  border:1px solid var(--line);
  background:var(--bg-elev-1);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:border-color .2s ease,transform .2s ease;
}
.feature-card:hover{border-color:rgba(22,224,176,.35);transform:translateY(-2px);}
.feature-media{position:relative;aspect-ratio:16/9;overflow:hidden;}
.feature-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .22s ease-out;}
.feature-card:hover .feature-media img{transform:scale(1.03);}
.feature-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,14,20,.05) 30%,rgba(11,14,20,.86) 100%);
}
.feature-body{padding:22px 24px 26px;}
.feature-body h3{margin-top:14px;font-size:20px;font-weight:600;line-height:1.45;}
.feature-body p{margin-top:10px;font-size:15px;color:var(--text-2);}
.feature-body .btn{margin-top:18px;}
.schedule{display:flex;flex-direction:column;gap:12px;}
.schedule-row{
  display:grid;
  grid-template-columns:88px 1fr auto;
  gap:18px;
  align-items:center;
  padding:18px 20px;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:var(--bg-elev-1);
  transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.schedule-row:hover{border-color:rgba(22,224,176,.35);background:var(--bg-elev-2);transform:translateX(4px);}
.schedule-time{
  font-variant-numeric:tabular-nums;
  font-size:14px;
  color:var(--hot);
  font-weight:700;
  line-height:1.4;
}
.schedule-time span{display:block;font-size:12px;color:var(--text-3);font-weight:500;}
.schedule-row h3{font-size:17px;font-weight:600;line-height:1.5;}
.schedule-row p{margin-top:6px;font-size:14px;color:var(--text-3);}
.schedule-act{display:flex;flex-direction:column;align-items:flex-end;gap:8px;}

/* ---------- 提醒渠道 ---------- */
.channels{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.channel-card{
  display:flex;
  flex-direction:column;
  border:1px solid var(--line);
  background:var(--bg-elev-1);
  border-radius:var(--radius-card);
  padding:26px 24px;
  box-shadow:var(--shadow-card);
  transition:border-color .2s ease,transform .2s ease;
}
.channel-card:hover{border-color:rgba(22,224,176,.35);transform:translateY(-2px);}
.channel-icon{
  width:44px;height:44px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(22,224,176,.35);
  border-radius:12px;
  color:var(--brand);
  margin-bottom:18px;
}
.channel-card h3{font-size:19px;font-weight:600;}
.channel-card p{margin-top:10px;font-size:15px;color:var(--text-2);}
.channel-list{margin-top:16px;display:flex;flex-direction:column;gap:8px;}
.channel-list li{
  position:relative;
  padding-left:18px;
  font-size:14px;
  color:var(--text-2);
}
.channel-list li::before{
  content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:var(--accent);
}
.channel-meta{
  margin-top:auto;
  padding-top:20px;
  font-size:13px;
  color:var(--text-3);
  border-top:1px solid var(--line);
}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;}
.faq-item{
  border:1px solid var(--line);
  background:var(--bg-elev-1);
  border-radius:var(--radius-card);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .2s ease;
}
.faq-item:hover{border-color:rgba(22,224,176,.3);}
.faq-item[open]{border-color:rgba(22,224,176,.35);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 22px;
  min-height:44px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary h3{font-size:17px;font-weight:600;line-height:1.5;}
.faq-icon{
  flex:0 0 auto;
  width:26px;height:26px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);
  border-radius:8px;
  color:var(--brand);
  font-size:16px;
  font-weight:700;
  transition:transform .2s ease,border-color .2s ease;
}
.faq-item[open] .faq-icon{transform:rotate(45deg);border-color:rgba(22,224,176,.5);}
.faq-answer{
  padding:0 22px 22px;
  color:var(--text-2);
  font-size:15px;
  line-height:1.8;
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
  padding:34px 36px;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:var(--bg-elev-1);
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(22,224,176,.16),transparent 68%);
}
.cta-band h2{font-size:26px;font-weight:700;line-height:1.35;position:relative;}
.cta-band p{margin-top:8px;font-size:15px;color:var(--text-2);position:relative;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;}

/* ---------- 页脚 ---------- */
.footer{
  margin-top:var(--sec);
  border-top:1px solid var(--line);
  background:var(--bg-elev-1);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer .logo-text b{color:var(--text-1);}
.footer p{margin-top:16px;max-width:320px;font-size:14px;color:var(--text-2);}
.footer h3{font-size:15px;font-weight:700;color:var(--text-1);margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:var(--text-2);}
.footer-links a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:52px;
  padding:22px 0 28px;
  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-3);
}
.to-top{font-size:13px;color:var(--text-3);}
.to-top:hover{color:var(--brand);}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .page-hero h1{font-size:42px;}
}
@media (max-width:1023px){
  :root{--sec:72px;}
  .container{padding:0 24px;}
  .stats{grid-template-columns:repeat(2,1fr);}
  .schedule-layout{grid-template-columns:1fr;}
  .channels{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .page-hero h1{font-size:36px;}
  .nav-menu a{padding:0 10px;font-size:14px;}
}
@media (max-width:900px){
  .nav{padding:8px 10px 8px 14px;gap:10px;top:8px;}
  .nav-toggle{display:block;margin-left:auto;}
  .nav-cta{display:none;}
  .nav-menu{
    position:absolute;
    top:calc(100% + 10px);
    left:0;right:0;
    margin-left:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:8px;
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    background:var(--bg-elev-1);
    box-shadow:var(--shadow-card);
  }
  .nav-menu.is-open{display:flex;}
  .nav-menu a{
    min-height:48px;
    padding:0 16px;
    border-radius:var(--radius-input);
    border-bottom:1px solid var(--line);
    font-size:15px;
  }
  .nav-menu a:last-child{border-bottom:0;}
  .nav-menu a.is-active::after{display:none;}
  .logo-text span{display:none;}
}
@media (max-width:767px){
  :root{--sec:56px;}
  .container{padding:0 20px;}
  .page-hero{padding-top:44px;}
  .page-hero h1{font-size:29px;}
  .hero-lead{font-size:16px;}
  .sec-title{font-size:23px;}
  .sec-title::before{top:5px;height:20px;}
  .stats{grid-template-columns:1fr;gap:14px;padding-top:36px;}
  .stat{padding:18px 20px;}
  .stat b{font-size:26px;}
  .schedule-row{grid-template-columns:1fr;gap:10px;padding:18px;}
  .schedule-act{flex-direction:row;align-items:center;flex-wrap:wrap;justify-content:flex-start;}
  .tl-item{grid-template-columns:44px 1fr;gap:14px;}
  .tl-num{width:44px;height:44px;font-size:16px;}
  .tl-item::before{left:21px;top:48px;}
  .tl-body{padding:18px 18px;}
  .cta-band{padding:26px 22px;}
  .cta-band h2{font-size:21px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer{padding-top:48px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
}
@media (max-width:520px){
  .page-hero h1{font-size:26px;}
  .logo-text b{font-size:14px;}
  .logo-mark{width:30px;height:30px;}
  .btn{width:100%;}
  .btn-sm{width:auto;}
  .chip{min-height:38px;padding:0 14px;font-size:13px;}
  .footer-links a{min-height:36px;display:flex;align-items:center;}
}