/* roulang page: index */
:root{
  --bg:#090A12;
  --bg-elev:#11131F;
  --surface:#161A2A;
  --surface-2:#1D2236;
  --line:rgba(255,255,255,.08);
  --line-hover:rgba(108,76,241,.45);
  --primary:#6C4CF1;
  --primary-soft:rgba(108,76,241,.16);
  --accent:#2BE3C4;
  --hot:#FF6B3D;
  --text-1:#F3F5FF;
  --text-2:#A6ACC9;
  --text-3:#6E7490;
  --r-sm:12px;
  --r-md:18px;
  --r-lg:24px;
  --r-pill:999px;
  --shadow-1:0 20px 60px rgba(6,7,16,.55);
  --shadow-2:0 10px 28px rgba(6,7,16,.45);
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:200ms;
  --nav-h:72px;
  --bs-body-bg:var(--bg);
  --bs-body-color:var(--text-1);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text-1);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  overflow-x:hidden;
  padding-bottom:0;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:radial-gradient(60% 60% at 20% 0%, rgba(108,76,241,.22), transparent 70%);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease)}
a:hover{color:var(--accent)}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.2;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
::selection{background:var(--primary);color:#fff}

.st-container{
  width:100%;
  max-width:1280px;
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}
.st-container--narrow{max-width:1200px}

/* ============ 顶部导航 ============ */
.st-header{
  position:fixed;
  top:0;left:0;right:0;
  height:var(--nav-h);
  z-index:1040;
  display:flex;
  align-items:center;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.st-header.is-scrolled{
  background:rgba(9,10,18,.88);
  border-bottom-color:var(--line);
  backdrop-filter:blur(10px);
}
.st-nav{display:flex;align-items:center;justify-content:space-between;width:100%;gap:24px}
.st-brand{display:flex;align-items:center;gap:10px;min-width:0}
.st-brand__mark{
  width:32px;height:32px;flex:0 0 32px;
  border-radius:10px;
  background:linear-gradient(150deg,var(--primary),#3B2AA8);
  display:grid;place-items:center;
  box-shadow:0 6px 18px rgba(108,76,241,.35);
}
.st-brand__mark svg{width:18px;height:18px}
.st-brand__text{
  font-size:19px;font-weight:800;letter-spacing:-.02em;
  white-space:nowrap;
}
.st-brand__text span{color:var(--accent)}
.st-menu{display:flex;align-items:center;gap:28px}
.st-menu a{
  position:relative;
  font-size:15px;font-weight:500;
  color:var(--text-2);
  padding:6px 0;
}
.st-menu a::after{
  content:"";
  position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--primary);
  transition:width var(--dur) var(--ease);
}
.st-menu a:hover{color:var(--text-1)}
.st-menu a:hover::after,.st-menu a.is-active::after{width:100%}
.st-menu a.is-active{color:var(--text-1);font-weight:600}
.st-nav__right{display:flex;align-items:center;gap:14px}
.st-icon-btn{
  width:38px;height:38px;border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:transparent;
  color:var(--text-2);
  display:grid;place-items:center;
  transition:all var(--dur) var(--ease);
}
.st-icon-btn:hover{border-color:var(--line-hover);color:var(--text-1)}
.st-icon-btn svg{width:18px;height:18px}
.st-btn{
  display:inline-flex;align-items:center;gap:8px;
  border-radius:var(--r-pill);
  padding:11px 22px;
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:all var(--dur) var(--ease);
  white-space:nowrap;
}
.st-btn--hot{background:var(--hot);color:#1B0A03}
.st-btn--hot:hover{background:#FF8155;color:#1B0A03;transform:translateY(-2px)}
.st-btn--ghost{
  background:transparent;color:var(--text-1);
  border-color:rgba(255,255,255,.22);
}
.st-btn--ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}
.st-btn--primary{background:var(--primary);color:#fff}
.st-btn--primary:hover{background:#7C60F5;color:#fff;transform:translateY(-2px)}
.st-btn svg{width:16px;height:16px;transition:transform var(--dur) var(--ease)}
.st-btn:hover svg{transform:translateX(4px)}
.st-nav__toggle{display:none}

/* ============ Hero ============ */
.st-hero{
  position:relative;
  min-height:min(88vh,820px);
  display:flex;
  align-items:flex-end;
  overflow:hidden;
  padding:calc(var(--nav-h) + 48px) 0 56px;
  isolation:isolate;
}
.st-hero__bg{
  position:absolute;inset:0;z-index:-2;
}
.st-hero__bg img{width:100%;height:100%;object-fit:cover}
.st-hero__bg::after{
  content:"";
  position:absolute;inset:0;
  background:
    linear-gradient(to top, var(--bg) 4%, rgba(9,10,18,.72) 42%, rgba(9,10,18,.35) 100%),
    radial-gradient(70% 80% at 12% 60%, rgba(6,7,16,.86), transparent 72%);
}
.st-hero__inner{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;align-items:end;width:100%}
.st-hero__content{max-width:680px}
.st-hero__eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.09em;
  text-transform:uppercase;
  color:var(--accent);
  margin-bottom:20px;
}
.st-hero__eyebrow svg{width:15px;height:15px}
.st-hero h1{
  font-size:clamp(38px,6.4vw,76px);
  line-height:1.04;
  letter-spacing:-.03em;
  font-weight:800;
  margin-bottom:18px;
}
.st-hero h1 em{
  font-style:normal;
  color:var(--accent);
}
.st-hero__sub{
  font-size:clamp(16px,1.6vw,19px);
  color:var(--text-2);
  max-width:520px;
  margin-bottom:32px;
}
.st-hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px}
.st-stats{
  display:flex;flex-wrap:wrap;gap:0;
  border-top:1px solid var(--line);
  padding-top:22px;
}
.st-stats__item{
  padding:0 26px;
  border-left:1px solid var(--line);
}
.st-stats__item:first-child{padding-left:0;border-left:0}
.st-stats__num{
  font-family:"Barlow Condensed","Barlow",system-ui,sans-serif;
  font-size:30px;font-weight:700;letter-spacing:.02em;
  color:var(--text-1);line-height:1.1;
}
.st-stats__num b{color:var(--accent);font-weight:700}
.st-stats__label{font-size:12px;color:var(--text-3);margin-top:4px;letter-spacing:.04em}

.st-hero__card{
  background:rgba(22,26,42,.72);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:14px;
  backdrop-filter:blur(10px);
  box-shadow:var(--shadow-1);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.st-hero__card:hover{transform:translateY(-6px);border-color:var(--line-hover)}
.st-hero__card-thumb{
  position:relative;border-radius:var(--r-sm);overflow:hidden;aspect-ratio:16/9;
}
.st-hero__card-thumb img{width:100%;height:100%;object-fit:cover}
.st-hero__card-play{
  position:absolute;right:10px;bottom:10px;
  width:38px;height:38px;border-radius:var(--r-pill);
  background:rgba(9,10,18,.72);
  border:1px solid rgba(255,255,255,.24);
  display:grid;place-items:center;
}
.st-hero__card-play svg{width:14px;height:14px}
.st-hero__card-tag{
  display:inline-block;margin:14px 0 8px;
  font-size:11px;font-weight:700;letter-spacing:.08em;
  color:var(--hot);
  background:rgba(255,107,61,.14);
  border:1px solid rgba(255,107,61,.3);
  border-radius:var(--r-pill);
  padding:3px 10px;
}
.st-hero__card h3{font-size:16px;line-height:1.5;font-weight:600}
.st-hero__card p{font-size:13px;color:var(--text-3);margin-top:6px}

/* ============ 通用板块 ============ */
.st-section{padding:96px 0;position:relative}
.st-section--tight{padding:72px 0}
.st-section + .st-section{border-top:1px solid var(--line)}
.st-section--plain + .st-section--plain{border-top:0}
.st-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:40px;
}
.st-head__left{max-width:640px}
.st-kicker{
  display:inline-block;font-size:12px;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;
  color:var(--primary);margin-bottom:12px;
}
.st-head h2{font-size:clamp(24px,3vw,36px);line-height:1.18}
.st-head p{color:var(--text-2);font-size:15px;margin-top:10px}
.st-head__tools{display:flex;align-items:center;gap:12px;flex-shrink:0}
.st-textlink{
  font-size:14px;font-weight:600;color:var(--text-2);
  display:inline-flex;align-items:center;gap:6px;
}
.st-textlink:hover{color:var(--accent)}
.st-textlink svg{width:14px;height:14px;transition:transform var(--dur) var(--ease)}
.st-textlink:hover svg{transform:translateX(4px)}
.st-arrow{
  width:40px;height:40px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:transparent;
  color:var(--text-2);display:grid;place-items:center;
  transition:all var(--dur) var(--ease);
}
.st-arrow:hover{border-color:var(--line-hover);color:var(--text-1)}
.st-arrow[disabled]{opacity:.35;cursor:not-allowed}
.st-arrow svg{width:16px;height:16px}

/* ============ 横滑片库 ============ */
.st-rail{
  display:flex;gap:20px;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  padding-bottom:12px;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.st-rail::-webkit-scrollbar{display:none}
.st-card{
  flex:0 0 300px;
  scroll-snap-align:start;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.st-card:hover{transform:translateY(-6px);border-color:var(--line-hover);box-shadow:var(--shadow-2)}
.st-card__thumb{position:relative;aspect-ratio:16/9;overflow:hidden}
.st-card__thumb img{width:100%;height:100%;object-fit:cover;transition:transform 400ms var(--ease)}
.st-card:hover .st-card__thumb img{transform:scale(1.03)}
.st-card__badge{
  position:absolute;left:12px;top:12px;
  font-size:11px;font-weight:700;letter-spacing:.06em;
  background:rgba(9,10,18,.78);
  border:1px solid rgba(255,255,255,.16);
  color:var(--text-1);
  border-radius:var(--r-pill);
  padding:4px 10px;
}
.st-card__badge--hot{color:var(--hot);border-color:rgba(255,107,61,.4)}
.st-card__body{padding:16px 18px 20px}
.st-card__body h3{
  font-size:16px;font-weight:600;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  min-height:48px;
}
.st-card__meta{
  display:flex;align-items:center;gap:10px;
  font-size:13px;color:var(--text-3);margin-top:10px;
}
.st-card__meta .st-dot{width:3px;height:3px;border-radius:50%;background:var(--text-3)}
.st-card__overlay{
  position:absolute;inset:0;display:grid;place-items:center;
  background:linear-gradient(to top,rgba(9,10,18,.7),rgba(9,10,18,.1));
  opacity:0;transition:opacity var(--dur) var(--ease);
}
.st-card:hover .st-card__overlay{opacity:1}
.st-card__overlay span{
  width:48px;height:48px;border-radius:var(--r-pill);
  display:grid;place-items:center;
  background:var(--primary);color:#fff;
}
.st-card__overlay svg{width:16px;height:16px}

/* ============ 热播推荐 ============ */
.st-spotlight{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:24px;
  align-items:stretch;
}
.st-feature{
  position:relative;border-radius:var(--r-md);overflow:hidden;
  border:1px solid var(--line);
  min-height:420px;
  display:flex;flex-direction:column;justify-content:flex-end;
  transition:border-color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.st-feature:hover{border-color:var(--line-hover);transform:translateY(-6px)}
.st-feature img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.st-feature::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(to top,rgba(6,7,16,.94) 8%,rgba(6,7,16,.45) 55%,rgba(6,7,16,.12));
}
.st-feature__body{position:relative;z-index:2;padding:32px}
.st-feature__body h3{font-size:clamp(20px,2.2vw,28px);margin-bottom:12px}
.st-feature__body p{font-size:15px;color:var(--text-2);max-width:520px;margin-bottom:20px}
.st-feature__tag{
  display:inline-block;font-size:11px;font-weight:700;letter-spacing:.08em;
  color:var(--accent);border:1px solid rgba(43,227,196,.4);
  border-radius:var(--r-pill);padding:4px 11px;margin-bottom:16px;
}
.st-list{display:flex;flex-direction:column;gap:16px;height:100%}
.st-list__item{
  display:flex;gap:16px;align-items:center;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:16px;
  flex:1;
  transition:border-color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.st-list__item:hover{border-color:var(--line-hover);transform:translateY(-4px)}
.st-list__num{
  font-family:"Barlow Condensed","Barlow",system-ui,sans-serif;
  font-size:34px;font-weight:700;line-height:1;
  color:transparent;
  -webkit-text-stroke:1px rgba(166,172,201,.5);
  flex:0 0 auto;
}
.st-list__thumb{
  width:96px;flex:0 0 96px;aspect-ratio:16/9;border-radius:var(--r-sm);overflow:hidden;
}
.st-list__thumb img{width:100%;height:100%;object-fit:cover}
.st-list__body{min-width:0}
.st-list__body h3{
  font-size:15px;font-weight:600;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}
.st-list__body p{
  font-size:13px;color:var(--text-3);margin-top:6px;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}

/* ============ 片单分区 ============ */
.st-pills{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:36px}
.st-pill{
  border:1px solid var(--line);
  background:transparent;
  color:var(--text-2);
  border-radius:var(--r-pill);
  padding:9px 20px;
  font-size:14px;font-weight:500;
  cursor:pointer;
  transition:all var(--dur) var(--ease);
}
.st-pill:hover{color:var(--text-1);border-color:var(--line-hover)}
.st-pill.is-active{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}
.st-panel{display:none}
.st-panel.is-active{display:block}
.st-panel__head{margin-bottom:22px}
.st-panel__head h3{font-size:20px}
.st-panel__head p{font-size:13px;color:var(--text-3);margin-top:6px}
.st-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(240px,1fr));
  gap:20px;
}

/* ============ CTA 区块 ============ */
.st-cta{
  position:relative;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--bg-elev);
  padding:56px;
  overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:40px;
}
.st-cta::before{
  content:"";
  position:absolute;inset:0;
  background:radial-gradient(50% 120% at 12% 40%, rgba(108,76,241,.34), transparent 68%);
  pointer-events:none;
}
.st-cta__text{position:relative;max-width:600px}
.st-cta h2{font-size:clamp(22px,2.6vw,32px);margin-bottom:12px}
.st-cta p{color:var(--text-2);font-size:15px}
.st-cta__actions{position:relative;display:flex;align-items:center;gap:20px;flex-wrap:wrap}

/* ============ 资讯列表 ============ */
.st-news{display:grid;grid-template-columns:5fr 7fr;gap:24px;align-items:start}
.st-news__lead{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  transition:border-color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.st-news__lead:hover{border-color:var(--line-hover);transform:translateY(-6px)}
.st-news__lead-thumb{aspect-ratio:16/9;overflow:hidden}
.st-news__lead-thumb img{width:100%;height:100%;object-fit:cover}
.st-news__lead-body{padding:22px 24px 26px}
.st-news__lead-body h3{font-size:20px;line-height:1.45;margin:12px 0 10px}
.st-news__lead-body p{
  color:var(--text-2);font-size:14px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.st-news__list{display:flex;flex-direction:column}
.st-news__item{
  display:flex;gap:20px;align-items:flex-start;
  padding:22px 0;
  border-bottom:1px solid var(--line);
  transition:border-color var(--dur) var(--ease);
}
.st-news__item:first-child{padding-top:0}
.st-news__item:last-child{border-bottom:0}
.st-news__item:hover{border-color:var(--line-hover)}
.st-news__tno{
  font-family:"Barlow Condensed","Barlow",system-ui,sans-serif;
  font-size:26px;font-weight:700;line-height:1;
  color:transparent;-webkit-text-stroke:1px rgba(166,172,201,.45);
  flex:0 0 44px;
}
.st-news__body{min-width:0;flex:1}
.st-news__body h3{
  font-size:16px;font-weight:600;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}
.st-news__body p{
  font-size:13px;color:var(--text-3);margin-top:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.st-news__foot{
  display:flex;align-items:center;gap:12px;margin-top:12px;
  font-size:13px;color:var(--text-3);
}
.st-news__foot .st-arrow-mini{
  margin-left:auto;display:inline-flex;align-items:center;gap:4px;color:var(--text-2);font-weight:600;
}
.st-news__foot .st-arrow-mini svg{width:14px;height:14px;transition:transform var(--dur) var(--ease)}
.st-news__item:hover .st-arrow-mini svg{transform:translateX(4px)}
.st-tag{
  display:inline-block;
  font-size:11px;font-weight:700;letter-spacing:.05em;
  color:var(--accent);
  background:rgba(43,227,196,.1);
  border:1px solid rgba(43,227,196,.26);
  border-radius:var(--r-pill);
  padding:3px 10px;
}
.st-tag--primary{color:#B7A6FF;background:var(--primary-soft);border-color:rgba(108,76,241,.35)}
.st-time{font-family:"Barlow Condensed","Barlow",system-ui,sans-serif;letter-spacing:.02em}
.st-empty{
  border:1px dashed rgba(255,255,255,.18);
  border-radius:var(--r-md);
  padding:52px 24px;
  text-align:center;
  background:rgba(22,26,42,.4);
}
.st-empty svg{width:26px;height:26px;color:var(--primary);margin-bottom:14px}
.st-empty p{color:var(--text-2);font-size:15px;margin-bottom:20px}

/* ============ FAQ ============ */
.st-faq{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start}
.st-faq__intro h2{font-size:clamp(24px,3vw,34px);margin-bottom:14px}
.st-faq__intro p{color:var(--text-2);font-size:15px;margin-bottom:24px}
.st-faq__list{display:flex;flex-direction:column;gap:12px}
.st-faq__item{
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:var(--surface);
  overflow:hidden;
  transition:border-color var(--dur) var(--ease);
}
.st-faq__item.is-open{border-color:rgba(108,76,241,.4)}
.st-faq__q{
  width:100%;background:transparent;border:0;color:var(--text-1);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;
  font-size:16px;font-weight:600;text-align:left;cursor:pointer;
  transition:color var(--dur) var(--ease);
}
.st-faq__q:hover{color:var(--accent)}
.st-faq__icon{
  position:relative;flex:0 0 18px;width:18px;height:18px;
}
.st-faq__icon::before,.st-faq__icon::after{
  content:"";position:absolute;background:var(--text-2);
  transition:transform var(--dur) var(--ease),background var(--dur) var(--ease);
}
.st-faq__icon::before{left:0;top:8px;width:18px;height:1.5px}
.st-faq__icon::after{top:0;left:8px;width:1.5px;height:18px}
.st-faq__item.is-open .st-faq__icon::after{transform:scaleY(0)}
.st-faq__item.is-open .st-faq__icon::before{background:var(--primary)}
.st-faq__a{
  max-height:0;overflow:hidden;
  transition:max-height 240ms var(--ease);
}
.st-faq__a-inner{
  padding:0 22px 22px;
  font-size:15px;line-height:1.85;color:var(--text-2);
}

/* ============ 页脚 ============ */
.st-footer{
  border-top:1px solid var(--line);
  background:var(--bg-elev);
  padding:72px 0 32px;
  margin-top:0;
  position:relative;z-index:1;
}
.st-footer__grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.3fr;
  gap:48px;
  padding-bottom:48px;
}
.st-footer h4{
  font-size:14px;color:var(--text-2);font-weight:600;
  letter-spacing:.06em;margin-bottom:18px;
}
.st-footer__brand .st-brand{margin-bottom:16px}
.st-footer__brand p{font-size:14px;color:var(--text-3);max-width:300px}
.st-footer__links{display:flex;flex-direction:column;gap:12px}
.st-footer__links a{
  font-size:14px;color:var(--text-2);
  display:inline-block;position:relative;width:fit-content;
}
.st-footer__links a::after{
  content:"";position:absolute;left:0;bottom:-2px;height:1px;width:0;
  background:var(--accent);transition:width var(--dur) var(--ease);
}
.st-footer__links a:hover{color:var(--accent)}
.st-footer__links a:hover::after{width:100%}
.st-social{display:flex;gap:10px;margin-top:18px}
.st-social a{
  width:36px;height:36px;border-radius:var(--r-pill);
  border:1px solid var(--line);display:grid;place-items:center;color:var(--text-2);
  transition:all var(--dur) var(--ease);
}
.st-social a:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-3px)}
.st-social svg{width:16px;height:16px}
.st-sub{display:flex;gap:10px;margin-top:16px}
.st-sub input{
  flex:1;min-width:0;
  background:var(--surface-2);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  color:var(--text-1);
  padding:11px 18px;
  font-size:14px;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.st-sub input::placeholder{color:var(--text-3)}
.st-sub input:focus{
  outline:none;border-color:var(--primary);
  box-shadow:0 0 0 4px rgba(108,76,241,.2);
}
.st-sub button{border:0;border-radius:var(--r-pill);background:var(--hot);color:#1B0A03;font-weight:600;padding:11px 22px;font-size:14px;cursor:pointer;transition:background var(--dur) var(--ease)}
.st-sub button:hover{background:#FF8155}
.st-footer__bottom{
  border-top:1px solid var(--line);
  padding-top:24px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.st-footer__bottom a{color:var(--text-3)}
.st-footer__bottom a:hover{color:var(--accent)}
.st-top{
  border:1px solid var(--line);background:transparent;color:var(--text-2);
  border-radius:var(--r-pill);padding:8px 18px;font-size:13px;cursor:pointer;
  transition:all var(--dur) var(--ease);
}
.st-top:hover{border-color:var(--accent);color:var(--accent)}

/* ============ 移动底部 Tab ============ */
.st-tabbar{
  display:none;
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:1050;
  background:rgba(9,10,18,.94);
  border-top:1px solid var(--line);
  backdrop-filter:blur(12px);
  padding-bottom:env(safe-area-inset-bottom);
}
.st-tabbar__grid{display:grid;grid-template-columns:repeat(4,1fr)}
.st-tabbar a{
  height:56px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:10px;color:var(--text-3);
  transition:color var(--dur) var(--ease);
}
.st-tabbar a svg{width:22px;height:22px}
.st-tabbar a.is-active{color:var(--accent)}
.st-tabbar a.is-active::after{
  content:"";width:3px;height:3px;border-radius:50%;background:var(--accent);
}

/* ============ 入场动画 ============ */
.st-reveal{opacity:0;transform:translateY(14px);transition:opacity 520ms var(--ease),transform 520ms var(--ease)}
.st-reveal.is-in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (min-width:1400px){
  .st-container{max-width:1360px}
  .st-hero{min-height:min(92vh,880px)}
}
@media (max-width:1199px){
  .st-hero__inner{grid-template-columns:1fr;gap:32px}
  .st-hero__card{max-width:340px}
  .st-spotlight{grid-template-columns:1fr}
  .st-feature{min-height:360px}
  .st-news{grid-template-columns:1fr}
  .st-faq{grid-template-columns:1fr;gap:32px}
}
@media (max-width:991px){
  .st-menu,.st-nav__right .st-btn{display:none}
  .st-nav__toggle{display:grid}
  .st-section{padding:72px 0}
  .st-footer__grid{grid-template-columns:1fr 1fr;gap:36px}
  .st-cta{padding:40px 32px;flex-direction:column;align-items:flex-start}
  .st-feature{min-height:320px}
  .st-card{flex:0 0 260px}
}
@media (max-width:767px){
  .st-header{height:64px}
  :root{--nav-h:64px}
  .st-container{padding:0 18px}
  .st-section{padding:56px 0}
  .st-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:28px}
  .st-head__tools{width:100%;justify-content:space-between}
  .st-hero{padding:calc(var(--nav-h) + 32px) 0 40px;min-height:72vh}
  .st-hero__card{display:none}
  .st-hero__actions .st-btn{flex:1 1 auto;justify-content:center}
  .st-stats__item{padding:0 16px}
  .st-stats__num{font-size:24px}
  .st-cta{padding:32px 22px;border-radius:var(--r-md)}
  .st-cta__actions{width:100%}
  .st-cta__actions .st-btn{width:100%;justify-content:center}
  .st-footer{padding:56px 0 96px}
  .st-footer__grid{grid-template-columns:1fr;gap:32px;padding-bottom:32px}
  .st-tabbar{display:block}
  body{padding-bottom:56px}
  .st-news__item{gap:14px}
  .st-news__tno{flex:0 0 32px;font-size:22px}
  .st-list__thumb{width:72px;flex:0 0 72px}
  .st-list__num{font-size:26px}
  .st-panel__head h3{font-size:18px}
  .st-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px}
}
@media (max-width:575px){
  .st-brand__text{font-size:16px}
  .st-hero h1{font-size:clamp(30px,9vw,40px)}
  .st-stats{display:grid;grid-template-columns:1fr 1fr;gap:18px 0}
  .st-stats__item{padding:0 14px}
  .st-stats__item:nth-child(odd){padding-left:0;border-left:0}
  .st-card{flex:0 0 232px}
  .st-news__lead-body{padding:18px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .st-reveal{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --bg:#090A12; --bg-elev:#11131F; --surface:#161A2A; --surface-2:#1D2236;
  --line:rgba(255,255,255,.08); --line-hot:rgba(108,76,241,.45);
  --primary:#6C4CF1; --accent:#2BE3C4; --hot:#FF6B3D;
  --text-1:#F3F5FF; --text-2:#A6ACC9; --text-3:#6E7490;
  --r-sm:12px; --r-md:18px; --r-lg:24px; --r-pill:999px;
  --shadow:0 20px 60px rgba(6,7,16,.55);
  --head-h:72px;
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Barlow Condensed","Barlow",system-ui,sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text-1);font-family:var(--font-cn);
  font-size:16px;line-height:1.8;letter-spacing:.01em;overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:radial-gradient(60% 60% at 20% 0%,rgba(108,76,241,.22),transparent 70%);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-family:var(--font-cn);letter-spacing:-.01em}
p{margin:0 0 1.1em}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.st-container{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}
.st-container--narrow{max-width:1232px}
.st-num{font-family:var(--font-num);font-weight:700;letter-spacing:.02em}

/* ---------- header ---------- */
.st-header{
  position:fixed;inset:0 0 auto 0;height:var(--head-h);z-index:60;
  display:flex;align-items:center;border-bottom:1px solid transparent;
  transition:background .2s var(--ease),border-color .2s var(--ease),backdrop-filter .2s var(--ease);
}
.st-header.is-stuck{background:rgba(9,10,18,.88);border-bottom-color:var(--line);backdrop-filter:blur(10px)}
.st-nav{display:flex;align-items:center;gap:32px;width:100%}
.st-brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.st-brand__mark{
  width:32px;height:32px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--primary),#3B2C93);
  box-shadow:0 8px 20px rgba(108,76,241,.35);
}
.st-brand__mark svg{width:18px;height:18px}
.st-brand__text{font-weight:700;font-size:17px;letter-spacing:.02em;white-space:nowrap}
.st-brand__text span{color:var(--accent)}
.st-menu{display:flex;align-items:center;gap:26px;margin-left:8px}
.st-menu a{position:relative;font-size:15px;color:var(--text-2);padding:6px 0;transition:color .2s var(--ease)}
.st-menu a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--primary);
  transition:width .2s var(--ease);
}
.st-menu a:hover{color:var(--text-1)}
.st-menu a:hover::after,.st-menu a.is-active::after{width:100%}
.st-menu a.is-active{color:var(--text-1)}
.st-nav__right{margin-left:auto;display:flex;align-items:center;gap:12px}
.st-icon-btn{
  width:40px;height:40px;border-radius:var(--r-pill);display:grid;place-items:center;
  border:1px solid var(--line);background:transparent;color:var(--text-2);cursor:pointer;
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.st-icon-btn svg{width:20px;height:20px}
.st-icon-btn:hover{border-color:var(--line-hot);color:var(--text-1);transform:translateY(-2px)}
.st-nav__toggle{display:none}
.st-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;transition:all .2s var(--ease);white-space:nowrap;
}
.st-btn--hot{background:var(--hot);color:#180A03;box-shadow:0 12px 30px rgba(255,107,61,.28)}
.st-btn--hot:hover{background:#FF7E56;transform:translateY(-2px)}
.st-btn--ghost{border-color:var(--line);color:var(--text-1);background:rgba(255,255,255,.02)}
.st-btn--ghost:hover{border-color:var(--line-hot);transform:translateY(-2px)}
.st-btn--primary{background:var(--primary);color:#fff}
.st-btn--primary:hover{background:#7C5DFF;transform:translateY(-2px)}

/* ---------- article head ---------- */
.st-article-head{
  position:relative;padding:calc(var(--head-h) + 56px) 0 56px;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
}
.st-article-head::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(9,10,18,.82) 0%,rgba(9,10,18,.9) 55%,var(--bg) 100%);
}
.st-article-head .st-container{position:relative;z-index:2}
.st-crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px}
.st-crumb li{display:inline-flex;align-items:center;gap:8px}
.st-crumb li+li::before{content:"/";color:var(--text-3);opacity:.6}
.st-crumb a:hover{color:var(--accent)}
.st-badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.04em;
  background:rgba(108,76,241,.16);border:1px solid rgba(108,76,241,.4);color:#C7BBFF;
}
.st-article-head h1{
  font-size:clamp(30px,4.4vw,52px);line-height:1.16;font-weight:700;
  max-width:940px;margin:18px 0 22px;letter-spacing:-.02em;
}
.st-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13px;color:var(--text-3)}
.st-meta span{display:inline-flex;align-items:center;gap:6px}
.st-meta span+span::before{content:"";width:1px;height:12px;background:var(--line);display:inline-block;margin-right:8px}
.st-meta .st-num{color:var(--accent);font-size:14px}

/* ---------- layout ---------- */
.st-main{position:relative;z-index:1;padding:64px 0 96px}
.st-layout{display:grid;grid-template-columns:minmax(0,1fr) 288px;gap:56px;align-items:start}
.st-article-body{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:48px 52px;box-shadow:var(--shadow);
  font-size:17px;line-height:1.9;color:#DDE1F2;
}
.st-article-body>*:last-child{margin-bottom:0}
.st-article-body h2{
  position:relative;font-size:24px;line-height:1.4;color:var(--text-1);
  margin:2em 0 .9em;padding-left:16px;
}
.st-article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:1em;border-radius:2px;background:var(--primary);
}
.st-article-body h3{
  font-size:19px;font-weight:600;color:var(--text-1);margin:1.8em 0 .7em;
  padding-top:1.1em;border-top:1px solid var(--line);
}
.st-article-body a{color:var(--accent);border-bottom:1px solid rgba(43,227,196,.35)}
.st-article-body a:hover{color:#61F2DA}
.st-article-body ul,.st-article-body ol{margin:0 0 1.2em;padding-left:4px}
.st-article-body ul li,.st-article-body ol li{position:relative;padding-left:24px;margin-bottom:.55em}
.st-article-body ul li::before{
  content:"";position:absolute;left:4px;top:.72em;width:8px;height:8px;
  background:var(--primary);border-radius:2px;transform:rotate(45deg);
}
.st-article-body ol{counter-reset:stc}
.st-article-body ol li{counter-increment:stc}
.st-article-body ol li::before{
  content:counter(stc);position:absolute;left:0;top:.1em;font-family:var(--font-num);
  font-weight:700;color:var(--accent);font-size:15px;
}
.st-article-body blockquote{
  margin:1.6em 0;padding:20px 24px;background:var(--bg-elev);
  border-left:3px solid var(--primary);border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--text-2);
}
.st-article-body blockquote p:last-child{margin-bottom:0}
.st-article-body img{border-radius:var(--r-sm);margin:1.6em 0 .8em}
.st-article-body figcaption,.st-article-body .caption{font-size:13px;color:var(--text-3);text-align:center;margin-bottom:1.6em}
.st-article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px}
.st-article-body th,.st-article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left}
.st-article-body th{background:var(--surface-2);color:var(--text-1);font-weight:600}
.st-article-body tbody tr:nth-child(even){background:rgba(255,255,255,.02)}
.st-article-body code{
  font-family:var(--font-num);background:var(--surface-2);padding:2px 7px;border-radius:6px;
  font-size:15px;color:var(--accent);
}
.st-empty{
  border:1px dashed rgba(255,255,255,.18);border-radius:var(--r-lg);padding:56px 32px;text-align:center;
  background:var(--surface);box-shadow:var(--shadow);
}
.st-empty__mark{
  width:44px;height:44px;margin:0 auto 18px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--primary),#3B2C93);
}
.st-empty__mark svg{width:22px;height:22px}
.st-empty h2{font-size:22px;margin-bottom:10px}
.st-empty p{color:var(--text-2);margin-bottom:24px}

/* ---------- sidebar ---------- */
.st-side{position:sticky;top:100px;display:grid;gap:20px}
.st-side__box{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:22px;
}
.st-side__box h3{font-size:14px;letter-spacing:.14em;color:var(--text-3);font-weight:600;margin-bottom:16px}
.st-side__list{display:grid;gap:14px}
.st-side__list a{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--text-2);transition:color .2s var(--ease)}
.st-side__list a:hover{color:var(--accent)}
.st-side__list i{font-family:var(--font-num);font-style:normal;font-weight:700;color:var(--primary);font-size:14px;min-width:20px}
.st-side__box p{font-size:14px;color:var(--text-2);line-height:1.75}

/* ---------- related ---------- */
.st-section{padding:0 0 96px;position:relative;z-index:1}
.st-sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.st-sec-head h2{font-size:clamp(24px,3vw,32px);font-weight:700}
.st-sec-head p{color:var(--text-3);font-size:14px;margin:6px 0 0}
.st-link-arrow{color:var(--accent);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.st-link-arrow svg{width:16px;height:16px;transition:transform .2s var(--ease)}
.st-link-arrow:hover svg{transform:translateX(4px)}
.st-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.st-card{
  display:flex;gap:16px;align-items:center;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-md);padding:16px;
  transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.st-card:hover{border-color:var(--line-hot);transform:translateY(-4px);box-shadow:var(--shadow)}
.st-card__thumb{width:96px;height:72px;flex:0 0 auto;border-radius:var(--r-sm);overflow:hidden;background:var(--surface-2)}
.st-card__thumb img{width:100%;height:100%;object-fit:cover}
.st-card h3{font-size:16px;font-weight:600;line-height:1.5;margin-bottom:8px}
.st-card p{font-size:13px;color:var(--text-3);margin:0}
.st-pager{display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;margin-top:36px}
.st-pager a{
  display:inline-flex;align-items:center;gap:8px;padding:11px 20px;border-radius:var(--r-pill);
  border:1px solid var(--line);font-size:14px;color:var(--text-2);transition:all .2s var(--ease);
}
.st-pager a:hover{border-color:var(--line-hot);color:var(--text-1);transform:translateY(-2px)}

/* ---------- cta ---------- */
.st-cta{
  position:relative;overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:var(--bg-elev);padding:72px 0;
}
.st-cta::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(50% 70% at 15% 0%,rgba(108,76,241,.28),transparent 70%);
}
.st-cta__inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between}
.st-cta h2{font-size:clamp(24px,3vw,34px);font-weight:700;margin-bottom:10px}
.st-cta p{color:var(--text-2);margin:0;font-size:15px}
.st-cta__actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px}

/* ---------- footer ---------- */
.st-footer{position:relative;z-index:1;padding:72px 0 32px;border-top:1px solid var(--line)}
.st-footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:48px}
.st-footer h4{font-size:14px;color:var(--text-2);margin-bottom:16px;font-weight:600;letter-spacing:.04em}
.st-footer__brand p{font-size:14px;color:var(--text-3);margin:16px 0 18px;line-height:1.7}
.st-social{display:flex;gap:10px}
.st-social a{
  width:38px;height:38px;border-radius:var(--r-pill);border:1px solid var(--line);
  display:grid;place-items:center;color:var(--text-2);transition:all .2s var(--ease);
}
.st-social a svg{width:18px;height:18px}
.st-social a:hover{border-color:var(--line-hot);color:var(--accent);transform:translateY(-2px)}
.st-footer__links{display:grid;gap:12px}
.st-footer__links a{position:relative;font-size:14px;color:var(--text-2);width:fit-content;transition:color .2s var(--ease)}
.st-footer__links a::after{
  content:"";position:absolute;left:0;bottom:-2px;height:1px;width:0;background:var(--accent);
  transition:width .2s var(--ease);
}
.st-footer__links a:hover{color:var(--accent)}
.st-footer__links a:hover::after{width:100%}
.st-sub{display:grid;gap:10px}
.st-sub input{
  width:100%;padding:12px 16px;border-radius:var(--r-pill);background:var(--surface-2);
  border:1px solid var(--line);color:var(--text-1);font-size:14px;font-family:var(--font-cn);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.st-sub input::placeholder{color:var(--text-3)}
.st-sub input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(108,76,241,.2)}
.st-sub button{width:100%}
.st-footer__bottom{
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  border-top:1px solid var(--line);padding-top:24px;font-size:13px;color:var(--text-3);
}
.st-top-btn{
  display:inline-flex;align-items:center;gap:8px;padding:9px 18px;border-radius:var(--r-pill);
  border:1px solid var(--line);color:var(--text-2);font-size:13px;transition:all .2s var(--ease);
}
.st-top-btn:hover{border-color:var(--line-hot);color:var(--text-1)}

/* ---------- mobile tabbar ---------- */
.st-tabbar{display:none}
.scroll-fade{opacity:0;transform:translateY(14px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.scroll-fade.is-in{opacity:1;transform:none}

@media (max-width:1199px){
  .st-layout{grid-template-columns:minmax(0,1fr) 260px;gap:36px}
  .st-article-body{padding:40px 34px}
}
@media (max-width:991px){
  .st-menu{display:none}
  .st-nav__toggle{display:grid}
  .st-layout{grid-template-columns:minmax(0,1fr)}
  .st-side{position:static;grid-template-columns:repeat(2,minmax(0,1fr))}
  .st-cards{grid-template-columns:repeat(2,minmax(0,1fr))}
  .st-footer__grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
}
@media (max-width:767px){
  body{padding-bottom:calc(64px + env(safe-area-inset-bottom))}
  .st-container{padding:0 18px}
  .st-article-head{padding:calc(var(--head-h) + 32px) 0 40px}
  .st-article-body{padding:28px 20px;font-size:16px;border-radius:var(--r-md)}
  .st-main{padding:40px 0 64px}
  .st-section{padding:0 0 64px}
  .st-cards{grid-template-columns:minmax(0,1fr)}
  .st-side{grid-template-columns:minmax(0,1fr)}
  .st-footer{padding:56px 0 96px}
  .st-footer__grid{grid-template-columns:minmax(0,1fr)}
  .st-cta{padding:56px 0}
  .st-cta__actions{width:100%}
  .st-cta__actions .st-btn{flex:1 1 auto}
  .st-tabbar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:70;height:calc(60px + env(safe-area-inset-bottom));
    padding-bottom:env(safe-area-inset-bottom);
    background:rgba(9,10,18,.94);border-top:1px solid var(--line);backdrop-filter:blur(10px);
  }
  .st-tabbar a{
    flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
    font-size:10px;color:var(--text-3);position:relative;
  }
  .st-tabbar svg{width:22px;height:22px}
  .st-tabbar a.is-active{color:var(--accent)}
  .st-tabbar a.is-active::after{
    content:"";position:absolute;bottom:6px;width:4px;height:4px;border-radius:50%;background:var(--accent);
  }
  .st-tabbar a span{margin-bottom:6px}
}
@media (max-width:520px){
  .st-brand__text{font-size:15px}
  .st-article-head h1{font-size:26px}
  .st-card{flex-direction:column;align-items:stretch}
  .st-card__thumb{width:100%;height:150px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .scroll-fade{opacity:1;transform:none}
}

/* roulang page: category1 */
:root{
  --bg:#090A12;
  --bg-elev:#11131F;
  --surface:#161A2A;
  --surface-2:#1D2236;
  --line:rgba(255,255,255,.08);
  --line-hover:rgba(108,76,241,.45);
  --primary:#6C4CF1;
  --accent:#2BE3C4;
  --hot:#FF6B3D;
  --text-1:#F3F5FF;
  --text-2:#A6ACC9;
  --text-3:#6E7490;
  --r-sm:12px;
  --r-md:18px;
  --r-lg:24px;
  --r-pill:999px;
  --shadow:0 20px 60px rgba(6,7,16,.55);
  --t:200ms cubic-bezier(.22,.61,.36,1);
  --head-h:72px;
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Barlow Condensed","Barlow",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  padding-top:var(--head-h);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:radial-gradient(60% 60% at 20% 0%, rgba(108,76,241,.22), transparent 70%);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--t)}
a:hover{color:var(--accent)}
h1,h2,h3,h4{margin:0;font-family:var(--font-cn);letter-spacing:-.01em}
p{margin:0 0 16px}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

.st-container{width:100%;max-width:1280px;margin:0 auto;padding:0 32px;position:relative;z-index:1}
.st-container--narrow{max-width:1240px}

/* ---------- header ---------- */
.st-header{
  position:fixed;top:0;left:0;right:0;z-index:60;height:var(--head-h);
  display:flex;align-items:center;
  border-bottom:1px solid transparent;
  transition:background var(--t),border-color var(--t);
}
.st-header.is-scrolled{
  background:rgba(9,10,18,.88);
  border-bottom-color:var(--line);
  backdrop-filter:blur(10px);
}
.st-nav{display:flex;align-items:center;gap:32px;height:var(--head-h)}
.st-brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.st-brand__mark{
  width:32px;height:32px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),#3d2ba8);
  box-shadow:0 6px 18px rgba(108,76,241,.35);
}
.st-brand__mark svg{width:17px;height:17px}
.st-brand__text{font-weight:700;font-size:17px;letter-spacing:.01em;white-space:nowrap}
.st-brand__text span{color:var(--accent)}
.st-menu{display:flex;align-items:center;gap:28px;margin-left:12px}
.st-menu a{
  position:relative;font-size:15px;color:var(--text-2);padding:6px 0;
}
.st-menu a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform var(--t);
}
.st-menu a:hover{color:var(--text-1)}
.st-menu a:hover::after,.st-menu a.is-active::after{transform:scaleX(1)}
.st-menu a.is-active{color:var(--text-1);font-weight:600}
.st-nav__right{margin-left:auto;display:flex;align-items:center;gap:12px}
.st-icon-btn{
  width:38px;height:38px;border-radius:var(--r-pill);display:grid;place-items:center;
  border:1px solid var(--line);background:transparent;color:var(--text-2);
  transition:border-color var(--t),color var(--t),background var(--t);
}
.st-icon-btn svg{width:18px;height:18px}
.st-icon-btn:hover{border-color:var(--line-hover);color:var(--text-1);background:var(--surface)}
.st-nav__toggle{display:none}
.st-btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform var(--t),background var(--t),border-color var(--t),color var(--t),box-shadow var(--t);
}
.st-btn--hot{background:var(--hot);color:#fff;box-shadow:0 10px 26px rgba(255,107,61,.28)}
.st-btn--hot:hover{background:#ff7d55;color:#fff;transform:translateY(-2px)}
.st-btn--primary{background:var(--primary);color:#fff}
.st-btn--primary:hover{background:#7d60f5;color:#fff;transform:translateY(-2px)}
.st-btn--ghost{border-color:var(--line);color:var(--text-1);background:transparent}
.st-btn--ghost:hover{border-color:var(--line-hover);background:var(--surface);color:var(--text-1)}
.st-btn--text{padding:11px 4px;color:var(--text-2);font-weight:500}
.st-btn--text:hover{color:var(--accent)}
.st-btn--text .st-arrow{transition:transform var(--t);display:inline-block}
.st-btn--text:hover .st-arrow{transform:translateX(4px)}

/* ---------- hero (分类矮版) ---------- */
.st-hero-cat{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line);
  padding:72px 0 64px;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.st-hero-cat::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(9,10,18,.82) 0%,rgba(9,10,18,.92) 60%,var(--bg) 100%),
             radial-gradient(60% 80% at 10% 20%, rgba(108,76,241,.28), transparent 70%);
}
.st-hero-cat__grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.65fr);
  gap:48px;align-items:center;
}
.st-crumbs{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px;padding:0;list-style:none}
.st-crumbs li{display:flex;align-items:center;gap:8px}
.st-crumbs li+li::before{content:"/";color:var(--text-3)}
.st-crumbs a{color:var(--text-2)}
.st-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent);margin-bottom:16px;
}
.st-eyebrow svg{width:13px;height:13px}
.st-hero-cat h1{
  font-size:clamp(30px,4.4vw,52px);line-height:1.12;font-weight:700;letter-spacing:-.02em;
}
.st-hero-cat__lead{color:var(--text-2);font-size:17px;max-width:560px;margin:20px 0 0}
.st-hero-cat__stats{
  display:flex;flex-wrap:wrap;gap:28px;margin-top:32px;
  padding-top:24px;border-top:1px solid var(--line);
}
.st-stat__num{
  font-family:var(--font-num);font-size:34px;font-weight:700;line-height:1;
  letter-spacing:.02em;color:var(--accent);
}
.st-stat__num small{font-size:15px;color:var(--text-2);margin-left:4px}
.st-stat__label{font-size:12px;color:var(--text-3);margin-top:8px;letter-spacing:.06em}
.st-hero-cat__art{
  border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow);position:relative;
}
.st-hero-cat__art img{aspect-ratio:4/3;object-fit:cover;width:100%}
.st-hero-cat__art figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:14px 18px;font-size:13px;color:var(--text-2);
  background:linear-gradient(180deg,transparent,rgba(9,10,18,.92));
}

/* ---------- section base ---------- */
.st-section{padding:96px 0;position:relative;z-index:1}
.st-section--tight{padding:72px 0}
.st-section--line{border-top:1px solid var(--line)}
.st-sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px}
.st-sec-head h2{font-size:clamp(24px,3vw,36px);line-height:1.2;font-weight:700}
.st-sec-head p{color:var(--text-2);font-size:15px;max-width:520px;margin:12px 0 0}
.st-tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.04em;
  border:1px solid var(--line);color:var(--text-2);background:var(--surface);
}
.st-tag--primary{background:rgba(108,76,241,.16);border-color:rgba(108,76,241,.4);color:#c3b7ff}
.st-tag--accent{background:rgba(43,227,196,.13);border-color:rgba(43,227,196,.35);color:var(--accent)}
.st-tag--hot{background:rgba(255,107,61,.16);border-color:rgba(255,107,61,.4);color:#ffb094}

/* ---------- 流程 ---------- */
.st-flow{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.st-flow__item{
  border:1px solid var(--line);border-radius:var(--r-md);padding:28px 24px;
  background:var(--surface);position:relative;
  transition:transform var(--t),border-color var(--t),background var(--t);
}
.st-flow__item:hover{transform:translateY(-6px);border-color:var(--line-hover);background:var(--surface-2)}
.st-flow__idx{
  font-family:var(--font-num);font-size:44px;font-weight:700;line-height:1;
  color:transparent;-webkit-text-stroke:1px rgba(108,76,241,.7);letter-spacing:.02em;
}
.st-flow__item h3{font-size:19px;font-weight:600;margin:16px 0 10px}
.st-flow__item p{color:var(--text-2);font-size:15px;margin:0}

/* ---------- 横向条目列表 ---------- */
.st-lead-list{border-top:1px solid var(--line)}
.st-lead{
  display:grid;grid-template-columns:208px minmax(0,1fr);gap:28px;
  padding:28px 0;border-bottom:1px solid var(--line);
  align-items:center;transition:background var(--t);
}
.st-lead:hover{background:rgba(22,26,42,.6)}
.st-lead__thumb{
  border-radius:var(--r-sm);overflow:hidden;border:1px solid var(--line);
}
.st-lead__thumb img{aspect-ratio:16/10;object-fit:cover;width:100%;transition:transform var(--t)}
.st-lead:hover .st-lead__thumb img{transform:scale(1.03)}
.st-lead__body h3{font-size:20px;font-weight:600;line-height:1.4;margin:12px 0 8px}
.st-lead__body h3 a:hover{color:var(--accent)}
.st-lead__body p{color:var(--text-2);font-size:15px;margin:0 0 14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.st-meta{display:flex;flex-wrap:wrap;align-items:center;gap:16px;font-size:13px;color:var(--text-3)}
.st-meta time{font-family:var(--font-num);letter-spacing:.04em;font-size:14px}
.st-meta .st-more{margin-left:auto;color:var(--text-2);display:inline-flex;align-items:center;gap:6px}
.st-meta .st-more span{transition:transform var(--t);display:inline-block}
.st-lead:hover .st-meta .st-more{color:var(--accent)}
.st-lead:hover .st-meta .st-more span{transform:translateX(4px)}

/* ---------- 适用场景（非对称） ---------- */
.st-scene{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px}
.st-scene__main{
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  background:var(--surface);position:relative;
}
.st-scene__main img{aspect-ratio:16/9;object-fit:cover;width:100%;opacity:.92}
.st-scene__main .st-scene__text{padding:28px}
.st-scene__main h3{font-size:22px;font-weight:600;margin-bottom:10px}
.st-scene__main p{color:var(--text-2);font-size:15px;margin:0}
.st-scene__side{display:grid;gap:24px}
.st-scene__card{
  border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface);
  padding:24px;display:flex;gap:18px;align-items:flex-start;
  transition:transform var(--t),border-color var(--t);
}
.st-scene__card:hover{transform:translateY(-4px);border-color:var(--line-hover)}
.st-scene__card i{color:var(--primary);font-size:20px;margin-top:4px}
.st-scene__card h3{font-size:18px;font-weight:600;margin-bottom:6px}
.st-scene__card p{color:var(--text-2);font-size:14.5px;margin:0}

/* ---------- FAQ ---------- */
.st-faq{display:grid;gap:14px;max-width:900px}
.st-faq__item{
  border:1px solid var(--line);border-radius:var(--r-sm);background:var(--surface);
  overflow:hidden;transition:border-color var(--t),background var(--t);
}
.st-faq__item.is-open{border-color:rgba(108,76,241,.4);background:var(--surface-2)}
.st-faq__q{
  width:100%;background:none;border:0;color:var(--text-1);text-align:left;
  padding:22px 24px;font-size:17px;font-weight:600;line-height:1.5;
  display:flex;align-items:center;justify-content:space-between;gap:16px;cursor:pointer;
}
.st-faq__sign{position:relative;width:16px;height:16px;flex:0 0 16px}
.st-faq__sign::before,.st-faq__sign::after{
  content:"";position:absolute;background:var(--text-2);transition:transform var(--t),background var(--t);
}
.st-faq__sign::before{left:0;top:7.5px;width:16px;height:1.5px}
.st-faq__sign::after{top:0;left:7.5px;width:1.5px;height:16px}
.st-faq__item.is-open .st-faq__sign::after{transform:scaleY(0)}
.st-faq__item.is-open .st-faq__sign::before{background:var(--accent)}
.st-faq__a{max-height:0;overflow:hidden;transition:max-height 240ms cubic-bezier(.22,.61,.36,1)}
.st-faq__a p{padding:0 24px 22px;color:var(--text-2);font-size:15px;line-height:1.85;margin:0}

/* ---------- CTA ---------- */
.st-cta{
  position:relative;overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:var(--bg-elev);padding:72px 0;
}
.st-cta::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(60% 140% at 85% 50%, rgba(108,76,241,.28), transparent 70%);
}
.st-cta__inner{
  position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.st-cta h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.25}
.st-cta p{color:var(--text-2);font-size:15px;margin:12px 0 0;max-width:540px}
.st-cta__actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap}

/* ---------- footer ---------- */
.st-footer{border-top:1px solid var(--line);background:var(--bg-elev);padding:72px 0 32px;position:relative;z-index:1}
.st-footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px}
.st-footer h4{font-size:14px;color:var(--text-2);font-weight:600;margin-bottom:18px;letter-spacing:.04em}
.st-footer__brand p{color:var(--text-3);font-size:14px;margin:16px 0 20px;max-width:280px}
.st-footer__links{display:grid;gap:12px}
.st-footer__links a{font-size:14.5px;color:var(--text-2);position:relative;width:fit-content}
.st-footer__links a::after{
  content:"";position:absolute;left:0;bottom:-2px;height:1px;width:100%;
  background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform var(--t);
}
.st-footer__links a:hover{color:var(--accent)}
.st-footer__links a:hover::after{transform:scaleX(1)}
.st-social{display:flex;gap:10px}
.st-social a{
  width:38px;height:38px;border-radius:var(--r-pill);border:1px solid var(--line);
  display:grid;place-items:center;color:var(--text-2);transition:border-color var(--t),color var(--t);
}
.st-social a svg{width:17px;height:17px}
.st-social a:hover{border-color:var(--line-hover);color:var(--accent)}
.st-sub{display:flex;gap:10px;margin-top:16px}
.st-sub input{
  flex:1;min-width:0;background:var(--surface-2);border:1px solid var(--line);color:var(--text-1);
  border-radius:var(--r-pill);padding:11px 18px;font-size:14px;font-family:inherit;
  transition:border-color var(--t),box-shadow var(--t);
}
.st-sub input::placeholder{color:var(--text-3)}
.st-sub input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(108,76,241,.2)}
.st-sub button{
  border:0;border-radius:var(--r-pill);padding:11px 20px;font-size:14px;font-weight:600;
  background:var(--hot);color:#fff;cursor:pointer;transition:background var(--t),transform var(--t);
}
.st-sub button:hover{background:#ff7d55;transform:translateY(-2px)}
.st-footer__bottom{
  margin-top:48px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.st-totop{
  display:inline-flex;align-items:center;gap:8px;color:var(--text-2);font-size:13px;
}
.st-totop:hover{color:var(--accent)}

/* ---------- 移动底部 Tab ---------- */
.st-tabbar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  height:calc(56px + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
  background:rgba(9,10,18,.94);border-top:1px solid var(--line);
  backdrop-filter:blur(10px);
}
.st-tabbar__inner{display:grid;grid-template-columns:repeat(4,1fr);height:56px}
.st-tabbar a{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:10px;color:var(--text-3);position:relative;
}
.st-tabbar a svg{width:22px;height:22px;stroke-width:1.7}
.st-tabbar a.is-active{color:var(--accent)}
.st-tabbar a.is-active::after{
  content:"";width:3px;height:3px;border-radius:50%;background:var(--accent);
}

.st-reveal{opacity:0;transform:translateY(12px);transition:opacity 500ms cubic-bezier(.22,.61,.36,1),transform 500ms cubic-bezier(.22,.61,.36,1)}
.st-reveal.is-in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .st-reveal{opacity:1;transform:none}
}

@media (max-width:1200px){
  .st-container{padding:0 24px}
  .st-menu{gap:20px}
}
@media (max-width:991px){
  .st-menu{display:none}
  .st-nav__toggle{display:grid}
  .st-section{padding:72px 0}
  .st-hero-cat{padding:56px 0 48px}
  .st-hero-cat__grid{grid-template-columns:1fr;gap:32px}
  .st-hero-cat__art{max-width:520px}
  .st-flow{grid-template-columns:1fr}
  .st-scene{grid-template-columns:1fr}
  .st-footer__grid{grid-template-columns:1fr 1fr;gap:32px}
  .st-lead{grid-template-columns:170px minmax(0,1fr);gap:20px}
}
@media (max-width:575px){
  body{padding-bottom:calc(56px + env(safe-area-inset-bottom))}
  .st-container{padding:0 16px}
  .st-tabbar{display:block}
  .st-brand__text{font-size:15px}
  .st-section{padding:56px 0}
  .st-hero-cat__stats{gap:20px}
  .st-stat__num{font-size:28px}
  .st-lead{grid-template-columns:1fr;gap:16px;padding:22px 0}
  .st-lead__thumb img{aspect-ratio:16/9}
  .st-sec-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:32px}
  .st-footer__grid{grid-template-columns:1fr}
  .st-cta__inner{flex-direction:column;align-items:flex-start}
  .st-sub{flex-direction:column}
  .st-sub button{width:100%}
  .st-faq__q{font-size:16px;padding:18px 18px}
  .st-faq__a p{padding:0 18px 18px}
}

/* roulang page: category2 */
:root{
  --bg:#090A12;
  --bg-elev:#11131F;
  --surface:#161A2A;
  --surface-2:#1D2236;
  --line:rgba(255,255,255,.08);
  --line-hot:rgba(108,76,241,.45);
  --primary:#6C4CF1;
  --accent:#2BE3C4;
  --hot:#FF6B3D;
  --text-1:#F3F5FF;
  --text-2:#A6ACC9;
  --text-3:#6E7490;
  --r-sm:12px;
  --r-md:18px;
  --r-lg:24px;
  --r-pill:999px;
  --shadow:0 20px 60px rgba(6,7,16,.55);
  --ease:cubic-bezier(.22,.61,.36,1);
  --header-h:72px;
  --pad-section:96px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text-1);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body.st-body{
  background-image:radial-gradient(60% 60% at 20% 0%, rgba(108,76,241,.22), transparent 70%);
  background-repeat:no-repeat;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:-.01em}
h1{font-size:clamp(30px,4.4vw,52px);line-height:1.12;font-weight:800}
h2{font-size:clamp(24px,3vw,36px);line-height:1.2}
h3{font-size:20px;line-height:1.35;font-weight:600}
h4{font-size:14px;color:var(--text-2);font-weight:600}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
button,input{font:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
::selection{background:rgba(108,76,241,.45);color:#fff}

.st-num{font-family:"Barlow Condensed","Barlow",system-ui,sans-serif;font-weight:700;letter-spacing:.02em}
.st-container{width:100%;max-width:1280px;margin:0 auto;padding:0 28px}
.st-container--narrow{max-width:1200px}
.st-meta{font-size:13px;line-height:1.6;font-weight:500;color:var(--text-3);margin:0}
.st-sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ============ header ============ */
.st-header{
  position:fixed;top:0;left:0;right:0;z-index:90;height:var(--header-h);
  display:flex;align-items:center;
  transition:background .25s var(--ease),border-color .25s var(--ease),backdrop-filter .25s var(--ease);
  border-bottom:1px solid transparent;
}
.st-header.is-scrolled{
  background:rgba(9,10,18,.88);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.st-nav{display:flex;align-items:center;justify-content:space-between;gap:24px}
.st-brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.st-brand__mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--primary),#33269c);
  box-shadow:0 8px 22px rgba(108,76,241,.35);
}
.st-brand__mark svg{width:18px;height:18px}
.st-brand__text{font-size:17px;font-weight:700;letter-spacing:.02em;white-space:nowrap}
.st-brand__text span{color:var(--accent)}
.st-menu{display:flex;align-items:center;gap:26px}
.st-menu a{position:relative;font-size:15px;color:var(--text-2);padding:6px 0}
.st-menu a:hover{color:var(--text-1)}
.st-menu a.is-active{color:var(--text-1)}
.st-menu a.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;background:var(--primary);
}
.st-nav__right{display:flex;align-items:center;gap:12px}
.st-icon-btn{
  width:40px;height:40px;display:grid;place-items:center;border-radius:var(--r-pill);
  border:1px solid var(--line);background:transparent;color:var(--text-2);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.st-icon-btn svg{width:19px;height:19px}
.st-icon-btn:hover{color:var(--accent);border-color:var(--line-hot);background:rgba(108,76,241,.12)}
.st-nav__toggle{display:none}

.st-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  transition:transform .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),filter .2s var(--ease);
  white-space:nowrap;
}
.st-btn:hover{transform:translateY(-2px)}
.st-btn--hot{background:var(--hot);color:#fff}
.st-btn--hot:hover{color:#fff;filter:brightness(1.08)}
.st-btn--primary{background:var(--primary);color:#fff}
.st-btn--primary:hover{color:#fff;filter:brightness(1.08)}
.st-btn--ghost{border-color:var(--line);color:var(--text-1);background:rgba(255,255,255,.02)}
.st-btn--ghost:hover{border-color:var(--line-hot);background:rgba(108,76,241,.14);color:var(--text-1)}
.st-btn--sm{height:40px;padding:0 18px;font-size:14px}

/* ============ hero ============ */
.st-hero{
  position:relative;overflow:hidden;display:flex;align-items:center;
  padding:calc(var(--header-h) + 68px) 0 68px;
  min-height:400px;border-bottom:1px solid var(--line);
}
.st-hero__bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;opacity:.5}
.st-hero__mask{position:absolute;inset:0;background:linear-gradient(100deg,rgba(9,10,18,.96) 6%,rgba(9,10,18,.84) 44%,rgba(9,10,18,.46) 100%)}
.st-hero__glow{position:absolute;inset:0;background:radial-gradient(60% 60% at 18% 0%, rgba(108,76,241,.3), transparent 70%)}
.st-hero__inner{position:relative;z-index:2;width:100%}
.st-hero__grid{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);gap:48px;align-items:center}
.st-crumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--text-3);margin-bottom:20px}
.st-crumb a:hover{color:var(--accent)}
.st-crumb li[aria-current]{color:var(--text-2)}
.st-eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--accent);text-transform:uppercase;margin-bottom:18px;
}
.st-eyebrow svg{width:14px;height:14px}
.st-hero h1{margin-bottom:16px}
.st-hero__lead{font-size:17px;color:var(--text-2);max-width:560px;margin-bottom:28px}
.st-hero__actions{display:flex;flex-wrap:wrap;gap:14px}
.st-stats{display:flex;flex-wrap:wrap;gap:34px;margin-top:36px;padding-top:26px;border-top:1px solid var(--line)}
.st-stat__num{font-size:30px;line-height:1;color:var(--accent)}
.st-stat__label{display:block;font-size:12px;color:var(--text-3);margin-top:6px;letter-spacing:.04em}
.st-hero__card{
  position:relative;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:var(--bg-elev);
  box-shadow:var(--shadow);
}
.st-hero__card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.st-hero__card-body{
  display:flex;align-items:center;gap:12px;padding:16px 18px;background:rgba(17,19,31,.92);
  border-top:1px solid var(--line);
}
.st-hero__card-body strong{display:block;font-size:14px}
.st-hero__card-body span{font-size:13px;color:var(--text-2)}
.st-live-dot{width:9px;height:9px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 5px rgba(43,227,196,.16);flex:0 0 auto}

/* ============ 状态条 ============ */
.st-status{border-bottom:1px solid var(--line);background:var(--bg-elev)}
.st-status__grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line)}
.st-status__item{background:var(--bg-elev);padding:26px 28px;display:flex;align-items:center;gap:16px}
.st-status__item strong{font-size:26px;line-height:1;color:var(--text-1)}
.st-status__item span{font-size:13px;color:var(--text-3);display:block}
.st-dot{width:8px;height:8px;border-radius:50%;flex:0 0 auto}
.st-dot--live{background:var(--accent)}
.st-dot--soon{background:var(--primary)}
.st-dot--done{background:var(--text-3)}

/* ============ section ============ */
.st-section{padding:var(--pad-section) 0;border-bottom:1px solid var(--line)}
.st-section--tight{padding:72px 0}
.st-section:last-of-type{border-bottom:0}
.st-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:36px}
.st-head__desc{font-size:15px;color:var(--text-2);max-width:620px;margin-top:12px}
.st-link{position:relative;display:inline-block;font-size:14px;color:var(--text-2)}
.st-link::after{content:"";position:absolute;left:0;bottom:-4px;width:0;height:1px;background:var(--accent);transition:width .2s var(--ease)}
.st-link:hover{color:var(--accent)}
.st-link:hover::after{width:100%}

.st-pills{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.st-pill{
  display:inline-flex;align-items:center;height:40px;padding:0 20px;border-radius:var(--r-pill);
  border:1px solid var(--line);font-size:14px;color:var(--text-2);background:transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.st-pill:hover{color:var(--text-1);border-color:var(--line-hot)}
.st-pill.is-active{background:var(--primary);border-color:transparent;color:#fff}

/* ============ 海报网格 ============ */
.st-poster-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.st-poster{
  position:relative;display:flex;flex-direction:column;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.st-poster:hover{transform:translateY(-6px);border-color:var(--line-hot);box-shadow:var(--shadow)}
.st-poster__media{position:relative;overflow:hidden;aspect-ratio:2/3;background:var(--surface-2)}
.st-poster__media img{width:100%;height:100%;object-fit:cover;transition:transform .25s var(--ease)}
.st-poster:hover .st-poster__media img{transform:scale(1.03)}
.st-poster--wide{grid-column:span 2}
.st-poster--wide .st-poster__media{aspect-ratio:16/9}
.st-poster__body{padding:14px 16px 18px;display:flex;flex-direction:column;gap:8px}
.st-poster__body h3{font-size:16px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.st-poster--wide .st-poster__body h3{font-size:22px;-webkit-line-clamp:2}
.st-badge{
  position:absolute;top:12px;left:12px;display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:var(--r-pill);font-size:12px;font-weight:600;
  background:rgba(108,76,241,.92);color:#fff;letter-spacing:.02em;
}
.st-badge--soft{background:rgba(9,10,18,.72);border:1px solid var(--line);color:var(--text-2)}
.st-poster__glow{
  position:absolute;inset:auto 0 0 0;height:52%;pointer-events:none;
  background:linear-gradient(to top,rgba(9,10,18,.86),transparent);
}

/* ============ 分区 ============ */
.st-zones{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}
.st-zone{border:1px solid var(--line);border-radius:var(--r-lg);background:var(--surface);padding:26px 24px 20px}
.st-zone h3{font-size:18px}
.st-zone__desc{font-size:13px;color:var(--text-3);margin:8px 0 18px}
.st-mini li+li{border-top:1px solid var(--line)}
.st-mini a{display:flex;align-items:center;gap:14px;padding:13px 0;transition:color .2s var(--ease)}
.st-mini a:hover{color:var(--accent)}
.st-mini__time{font-size:15px;color:var(--accent);flex:0 0 54px;font-family:"Barlow Condensed","Barlow",system-ui,sans-serif;font-weight:700;letter-spacing:.02em}
.st-mini__title{font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.st-mini a:hover .st-mini__title{color:var(--text-1)}

/* ============ 步骤 ============ */
.st-steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.st-step{
  position:relative;padding:28px 24px;border:1px solid var(--line);border-radius:var(--r-lg);
  background:var(--surface);transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.st-step:hover{border-color:var(--line-hot);transform:translateY(-4px)}
.st-step__num{
  display:block;font-size:44px;line-height:1;margin-bottom:14px;color:transparent;
  -webkit-text-stroke:1px rgba(108,76,241,.75);
}
.st-step h3{font-size:17px;margin-bottom:8px}
.st-step p{font-size:14px;color:var(--text-2);margin:0}

/* ============ 资讯 ============ */
.st-news__grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:28px}
.st-news__feature{
  grid-column:span 5;display:flex;flex-direction:column;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--r-lg);background:var(--surface);
  transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.st-news__feature:hover{border-color:var(--line-hot);transform:translateY(-4px)}
.st-news__feature img{width:100%;aspect-ratio:16/9;object-fit:cover}
.st-news__feature-body{padding:22px;display:flex;flex-direction:column;gap:12px}
.st-news__feature-body h3{font-size:19px}
.st-news__feature-body p{font-size:14px;color:var(--text-2);margin:0}
.st-news__list{grid-column:span 7;display:flex;flex-direction:column}
.st-news__row{
  display:flex;flex-direction:column;gap:6px;padding:18px 0;border-top:1px solid var(--line);
  transition:color .2s var(--ease);
}
.st-news__row:first-child{border-top:0;padding-top:0}
.st-news__row h3{font-size:16px;color:var(--text-1);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.st-news__row p{font-size:13px;color:var(--text-2);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.st-news__row:hover h3{color:var(--accent)}
.st-news__rowfoot{display:flex;align-items:center;justify-content:space-between;gap:16px}
.st-tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  border:1px solid var(--line);font-size:12px;color:var(--text-2);letter-spacing:.02em;
}
.st-news__empty{
  border:1px dashed var(--line-hot);border-radius:var(--r-lg);padding:40px 28px;text-align:center;
  background:rgba(108,76,241,.06);
}
.st-news__empty svg{width:24px;height:24px;margin:0 auto 14px}
.st-news__empty p{font-size:14px;color:var(--text-2);margin-bottom:18px}

/* ============ 分页 ============ */
.st-pager{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:40px}
.st-pager__item{
  display:inline-flex;align-items:center;justify-content:center;min-width:42px;height:42px;padding:0 16px;
  border-radius:var(--r-pill);border:1px solid var(--line);font-size:14px;color:var(--text-2);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.st-pager__item:hover{color:var(--text-1);border-color:var(--line-hot);background:rgba(108,76,241,.12)}
.st-pager__item.is-active{background:var(--primary);border-color:transparent;color:#fff}

/* ============ CTA ============ */
.st-cta{
  position:relative;overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:var(--bg-elev);padding:76px 0;
}
.st-cta__glow{position:absolute;inset:0;background:radial-gradient(55% 80% at 15% 40%, rgba(108,76,241,.28), transparent 70%)}
.st-cta__inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:36px}
.st-cta h2{margin-bottom:10px}
.st-cta p{font-size:15px;color:var(--text-2);max-width:620px;margin:0}
.st-cta__actions{display:flex;align-items:center;gap:20px;flex:0 0 auto}

/* ============ footer ============ */
.st-footer{background:var(--bg);padding:64px 0 28px;border-top:1px solid var(--line)}
.st-footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:40px;border-bottom:1px solid var(--line)}
.st-footer__brand p{font-size:14px;color:var(--text-3);margin:16px 0 18px;max-width:280px}
.st-footer h4{margin-bottom:16px}
.st-footer__links{display:flex;flex-direction:column;gap:10px}
.st-footer__links a{position:relative;font-size:14px;color:var(--text-2);display:inline-block;width:fit-content}
.st-footer__links a::after{content:"";position:absolute;left:0;bottom:-3px;width:0;height:1px;background:var(--accent);transition:width .2s var(--ease)}
.st-footer__links a:hover{color:var(--accent)}
.st-footer__links a:hover::after{width:100%}
.st-social{display:flex;gap:10px}
.st-social a{
  width:38px;height:38px;display:grid;place-items:center;border-radius:var(--r-pill);
  border:1px solid var(--line);color:var(--text-2);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.st-social a svg{width:18px;height:18px}
.st-social a:hover{color:var(--accent);border-color:var(--line-hot);background:rgba(108,76,241,.12)}
.st-sub{margin-top:14px}
.st-sub label{display:block;font-size:13px;color:var(--text-3);margin-bottom:8px}
.st-sub__field{
  width:100%;height:46px;padding:0 16px;border-radius:var(--r-sm);
  background:var(--surface-2);border:1px solid var(--line);color:var(--text-1);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.st-sub__field::placeholder{color:var(--text-3)}
.st-sub__field:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(108,76,241,.2)}
.st-sub__btn{
  width:100%;height:46px;margin-top:12px;border:0;border-radius:var(--r-pill);
  background:var(--primary);color:#fff;font-size:15px;font-weight:600;
  transition:filter .2s var(--ease),transform .2s var(--ease);
}
.st-sub__btn:hover{filter:brightness(1.08);transform:translateY(-2px)}
.st-footer__bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding-top:22px;font-size:13px;color:var(--text-3);
}
.st-footer__bottom a:hover{color:var(--accent)}

/* ============ 移动底部 Tab ============ */
.st-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:95;display:none;
  height:calc(56px + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
  background:rgba(9,10,18,.96);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-top:1px solid var(--line);
}
.st-tabbar__item{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:10px;color:var(--text-3);position:relative;
}
.st-tabbar__item svg{width:23px;height:23px}
.st-tabbar__item.is-active{color:var(--accent)}
.st-tabbar__item.is-active::after{
  content:"";position:absolute;bottom:6px;width:3px;height:3px;border-radius:50%;background:var(--accent);
}

/* ============ 动效 ============ */
.st-reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.st-reveal.is-in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  :root{--pad-section:80px}
  .st-hero__grid{gap:36px}
}
@media (max-width:991px){
  :root{--pad-section:72px}
  .st-container{padding:0 22px}
  .st-menu{display:none}
  .st-nav__toggle{display:grid}
  .st-hero{padding:calc(var(--header-h) + 52px) 0 56px;min-height:0}
  .st-hero__grid{grid-template-columns:minmax(0,1fr);gap:32px}
  .st-hero__card{max-width:520px}
  .st-poster-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
  .st-zones{grid-template-columns:repeat(2,minmax(0,1fr))}
  .st-steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .st-news__grid{grid-template-columns:minmax(0,1fr);gap:22px}
  .st-news__feature,.st-news__list{grid-column:span 1}
  .st-news__row:first-child{border-top:1px solid var(--line);padding-top:18px}
  .st-cta__inner{flex-direction:column;align-items:flex-start;text-align:left}
  .st-cta__actions{flex-wrap:wrap}
  .st-footer__grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body.st-body{padding-bottom:calc(56px + env(safe-area-inset-bottom))}
  .st-tabbar{display:flex}
  .st-header{height:64px}
  :root{--header-h:64px;--pad-section:56px}
  .st-brand__text{font-size:15px}
  .st-hero__lead{font-size:16px}
  .st-stats{gap:22px}
  .st-stat__num{font-size:25px}
  .st-status__grid{grid-template-columns:minmax(0,1fr)}
  .st-status__item{padding:18px 20px}
  .st-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:26px}
  .st-zones{grid-template-columns:minmax(0,1fr)}
  .st-steps{grid-template-columns:minmax(0,1fr)}
  .st-footer__grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .st-footer__bottom{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (max-width:560px){
  .st-container{padding:0 16px}
  .st-btn{height:44px;padding:0 20px;font-size:14px}
  .st-hero__actions{width:100%}
  .st-hero__actions .st-btn{flex:1}
  .st-poster-grid{gap:12px}
  .st-poster__body{padding:12px 12px 14px}
  .st-poster__body h3{font-size:14px}
  .st-poster--wide .st-poster__body h3{font-size:18px}
  .st-badge{top:8px;left:8px;height:23px;padding:0 9px;font-size:11px}
  .st-cta__actions{width:100%}
  .st-cta__actions .st-btn{flex:1}
}
@media (min-width:1400px){
  .st-container{max-width:1340px}
  .st-hero{min-height:440px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{animation:none!important;transition:none!important}
  .st-reveal{opacity:1;transform:none}
}

/* roulang page: category3 */
:root{
  --bg:#090A12;
  --bg-elev:#11131F;
  --surface:#161A2A;
  --surface-2:#1D2236;
  --line:rgba(255,255,255,.08);
  --line-hover:rgba(108,76,241,.45);
  --primary:#6C4CF1;
  --primary-soft:rgba(108,76,241,.16);
  --accent:#2BE3C4;
  --hot:#FF6B3D;
  --text-1:#F3F5FF;
  --text-2:#A6ACC9;
  --text-3:#6E7490;
  --r-sm:12px;
  --r-md:18px;
  --r-lg:24px;
  --r-pill:999px;
  --shadow:0 20px 60px rgba(6,7,16,.55);
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:200ms;
  --nav-h:72px;
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Barlow Condensed","Barlow",system-ui,sans-serif;
  --bs-body-bg:transparent;
  --bs-body-color:var(--text-1);
  --bs-link-color:var(--text-1);
  --bs-link-hover-color:var(--accent);
  --bs-border-color:var(--line);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  padding:0;
  background:var(--bg);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:radial-gradient(60% 60% at 20% 0%, rgba(108,76,241,.22), transparent 70%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block}
a{color:var(--text-1);text-decoration:none;transition:color var(--dur) var(--ease)}
a:hover{color:var(--accent)}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- layout ---------- */
.st-container{width:100%;max-width:1280px;margin:0 auto;padding:0 32px}
.st-container--narrow{max-width:1240px}
.st-section{position:relative;z-index:1;padding:96px 0;border-top:1px solid var(--line)}
.st-section:first-of-type{border-top:0}
.st-section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap}
.st-section__head p{color:var(--text-2);max-width:560px;font-size:15px}
.st-h2{font-size:clamp(24px,3vw,36px);line-height:1.2}
.st-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:500;letter-spacing:.14em;color:var(--accent);text-transform:uppercase}
.st-eyebrow svg{width:14px;height:14px}

/* ---------- header ---------- */
.st-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  height:var(--nav-h);
  display:flex;align-items:center;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.st-header.is-scrolled{
  background:rgba(9,10,18,.88);
  backdrop-filter:blur(10px);
  border-bottom-color:var(--line);
}
.st-nav{display:flex;align-items:center;justify-content:space-between;gap:28px;height:var(--nav-h)}
.st-brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.st-brand__mark{width:30px;height:30px;border-radius:9px;background:linear-gradient(140deg,var(--primary),#4a2fd0);display:grid;place-items:center;box-shadow:0 6px 18px rgba(108,76,241,.35)}
.st-brand__mark svg{width:17px;height:17px}
.st-brand__text{font-weight:800;font-size:17px;letter-spacing:.01em}
.st-brand__text span{color:var(--accent)}
.st-menu{display:flex;align-items:center;gap:6px}
.st-menu a{
  position:relative;padding:8px 14px;border-radius:var(--r-pill);
  font-size:14.5px;color:var(--text-2);
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.st-menu a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--primary);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform var(--dur) var(--ease);
}
.st-menu a:hover{color:var(--text-1);background:rgba(255,255,255,.04)}
.st-menu a.is-active{color:var(--text-1)}
.st-menu a.is-active::after{transform:scaleX(1)}
.st-nav__right{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.st-icon-btn{
  width:40px;height:40px;border-radius:var(--r-pill);
  display:grid;place-items:center;color:var(--text-2);
  border:1px solid var(--line);background:transparent;cursor:pointer;
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.st-icon-btn svg{width:19px;height:19px}
.st-icon-btn:hover{color:var(--text-1);border-color:var(--line-hover);transform:translateY(-2px)}
.st-nav__toggle{display:none}
.st-btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 22px;border-radius:var(--r-pill);
  font-size:14.5px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease),transform var(--dur) var(--ease),color var(--dur) var(--ease);
}
.st-btn svg{width:16px;height:16px;transition:transform var(--dur) var(--ease)}
.st-btn:hover svg{transform:translateX(4px)}
.st-btn--hot{background:var(--hot);color:#1b0d07}
.st-btn--hot:hover{background:#ff8158;color:#1b0d07;transform:translateY(-2px)}
.st-btn--ghost{background:transparent;color:var(--text-1);border-color:rgba(255,255,255,.22)}
.st-btn--ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}
.st-btn--primary{background:var(--primary);color:#fff}
.st-btn--primary:hover{background:#7c60f5;color:#fff;transform:translateY(-2px)}
.st-btn--link{background:transparent;color:var(--text-2);padding:11px 6px}
.st-btn--link:hover{color:var(--accent)}

/* ---------- hero ---------- */
.st-hero--cat{
  position:relative;z-index:1;
  padding:150px 0 72px;
  background-image:linear-gradient(180deg,rgba(9,10,18,.74) 0%,rgba(9,10,18,.9) 55%,var(--bg) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.st-hero__inner{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.st-hero__copy h1{font-size:clamp(30px,4.4vw,52px);line-height:1.12;margin:16px 0 18px}
.st-hero__copy h1 em{font-style:normal;color:var(--accent)}
.st-hero__copy p.st-lead{color:var(--text-2);font-size:17px;max-width:560px}
.st-stats{display:flex;flex-wrap:wrap;gap:28px;margin-top:36px}
.st-stat{border-left:1px solid var(--line);padding-left:16px;min-width:96px}
.st-stat b{display:block;font-family:var(--font-num);font-size:32px;line-height:1;font-weight:700;letter-spacing:.02em;color:var(--accent)}
.st-stat span{display:block;margin-top:6px;font-size:12.5px;color:var(--text-3)}
.st-hero__figure{position:relative}
.st-hero__figure img{width:100%;border-radius:var(--r-md);border:1px solid var(--line);aspect-ratio:16/11;object-fit:cover;box-shadow:var(--shadow)}
.st-hero__figure::after{
  content:"";position:absolute;inset:-1px;border-radius:var(--r-md);
  background:linear-gradient(160deg,rgba(108,76,241,.28),transparent 55%);
  pointer-events:none;
}
.st-crumb{display:flex;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--text-3);margin-bottom:6px}
.st-crumb a{color:var(--text-3)}
.st-crumb a:hover{color:var(--accent)}
.st-crumb li:not(:last-child)::after{content:"/";margin-left:10px;color:var(--text-3)}

/* ---------- badges ---------- */
.st-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:500;letter-spacing:.04em;
  background:var(--primary-soft);color:#c3b6ff;border:1px solid rgba(108,76,241,.3);
}
.st-badge--hot{background:rgba(255,107,61,.16);color:#ffb193;border-color:rgba(255,107,61,.32)}
.st-badge--ok{background:rgba(43,227,196,.13);color:#8ff2e2;border-color:rgba(43,227,196,.28)}

/* ---------- rank list ---------- */
.st-rank{display:flex;flex-direction:column;gap:24px}
.st-rank__item{display:grid;grid-template-columns:96px 1fr;gap:24px;align-items:stretch}
.st-rank__no{
  font-family:var(--font-num);font-size:64px;line-height:.9;font-weight:700;letter-spacing:.02em;
  color:transparent;-webkit-text-stroke:1px rgba(166,172,201,.42);
  display:flex;align-items:flex-start;padding-top:8px;
}
.st-rank__card{
  display:grid;grid-template-columns:200px 1fr;gap:24px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px;transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.st-rank__card:hover{transform:translateY(-6px);border-color:var(--line-hover);box-shadow:var(--shadow)}
.st-rank__item.is-hi .st-rank__card{border-color:rgba(108,76,241,.4);background:linear-gradient(150deg,rgba(108,76,241,.12),rgba(22,26,42,.9) 60%)}
.st-rank__item.is-hi .st-rank__no{-webkit-text-stroke:1px rgba(108,76,241,.8)}
.st-rank__thumb{border-radius:var(--r-sm);overflow:hidden;border:1px solid var(--line)}
.st-rank__thumb img{width:100%;height:100%;aspect-ratio:16/11;object-fit:cover;transition:transform var(--dur) var(--ease)}
.st-rank__card:hover .st-rank__thumb img{transform:scale(1.03)}
.st-rank__body{display:flex;flex-direction:column;gap:10px}
.st-rank__body h3{font-size:19px;line-height:1.4}
.st-rank__body p{color:var(--text-2);font-size:14.5px;line-height:1.75}
.st-rank__foot{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:auto;padding-top:6px}
.st-meta{font-family:var(--font-num);font-size:13px;letter-spacing:.02em;color:var(--text-3)}
.st-arrow-link{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;color:var(--accent)}
.st-arrow-link svg{width:15px;height:15px;transition:transform var(--dur) var(--ease)}
.st-arrow-link:hover svg{transform:translateX(4px)}

/* ---------- timeline ---------- */
.st-timeline{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.st-tl{
  position:relative;padding:24px;border-radius:var(--r-md);
  background:var(--surface-2);border:1px solid var(--line);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.st-tl:hover{transform:translateY(-6px);border-color:var(--line-hover)}
.st-tl__step{font-family:var(--font-num);font-size:13px;letter-spacing:.16em;color:var(--accent)}
.st-tl h3{font-size:18px;margin:10px 0 8px}
.st-tl p{color:var(--text-2);font-size:14.5px;line-height:1.75}
.st-tl__dot{position:absolute;top:-6px;left:24px;width:10px;height:10px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px rgba(108,76,241,.18)}

/* ---------- info grid ---------- */
.st-info{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.st-info__card{
  display:flex;gap:18px;padding:24px;border-radius:var(--r-md);
  background:var(--bg-elev);border:1px solid var(--line);
  transition:border-color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.st-info__card:hover{border-color:var(--line-hover);transform:translateY(-6px)}
.st-info__icon{flex:0 0 44px;width:44px;height:44px;border-radius:12px;display:grid;place-items:center;background:var(--primary-soft);color:#c3b6ff}
.st-info__icon svg{width:21px;height:21px}
.st-info__card h3{font-size:17px;margin-bottom:6px}
.st-info__card p{color:var(--text-2);font-size:14.5px;line-height:1.75}
.st-info__card .st-badge{margin-top:12px}

/* ---------- faq ---------- */
.st-faq{display:flex;flex-direction:column;gap:14px;max-width:900px}
.st-faq__item{border:1px solid var(--line);border-radius:var(--r-sm);background:var(--surface);overflow:hidden;transition:border-color var(--dur) var(--ease)}
.st-faq__item.is-open{border-color:rgba(108,76,241,.5)}
.st-faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;background:transparent;border:0;color:var(--text-1);
  font-size:16.5px;font-weight:600;text-align:left;cursor:pointer;
}
.st-faq__q:hover{color:var(--accent)}
.st-faq__mark{position:relative;flex:0 0 18px;width:18px;height:18px}
.st-faq__mark::before,.st-faq__mark::after{content:"";position:absolute;background:currentColor;border-radius:2px}
.st-faq__mark::before{top:8px;left:0;width:18px;height:1.5px}
.st-faq__mark::after{left:8px;top:0;width:1.5px;height:18px;transition:transform var(--dur) var(--ease)}
.st-faq__item.is-open .st-faq__mark::after{transform:scaleY(0)}
.st-faq__a{max-height:0;overflow:hidden;transition:max-height 240ms var(--ease)}
.st-faq__a p{padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--text-2)}

/* ---------- cta ---------- */
.st-cta{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);border:1px solid var(--line);
  background:var(--bg-elev);
  padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.st-cta::before{
  content:"";position:absolute;top:-120px;right:-60px;width:420px;height:420px;
  background:radial-gradient(50% 50% at 50% 50%, rgba(108,76,241,.4), transparent 70%);
  pointer-events:none;
}
.st-cta__txt{position:relative;z-index:1;max-width:620px}
.st-cta h2{font-size:clamp(22px,2.6vw,32px);line-height:1.25;margin-bottom:10px}
.st-cta p{color:var(--text-2);font-size:15px}
.st-cta__acts{position:relative;z-index:1;display:flex;align-items:center;gap:14px;flex-wrap:wrap}

/* ---------- footer ---------- */
.st-footer{position:relative;z-index:1;border-top:1px solid var(--line);background:var(--bg-elev);padding:64px 0 28px;margin-top:0}
.st-footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px}
.st-footer__brand p{color:var(--text-3);font-size:14px;margin:14px 0 18px;max-width:280px}
.st-footer h4{font-size:14px;color:var(--text-2);font-weight:600;margin-bottom:16px;letter-spacing:.04em}
.st-footer__links{display:flex;flex-direction:column;gap:10px}
.st-footer__links a{position:relative;display:inline-block;color:var(--text-3);font-size:14px}
.st-footer__links a::after{content:"";position:absolute;left:0;bottom:-2px;width:100%;height:1px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform var(--dur) var(--ease)}
.st-footer__links a:hover{color:var(--accent)}
.st-footer__links a:hover::after{transform:scaleX(1)}
.st-social{display:flex;gap:10px}
.st-social a{width:38px;height:38px;border-radius:var(--r-pill);border:1px solid var(--line);display:grid;place-items:center;color:var(--text-2)}
.st-social a svg{width:17px;height:17px}
.st-social a:hover{color:var(--accent);border-color:var(--line-hover);transform:translateY(-2px)}
.st-sub{display:flex;flex-direction:column;gap:10px;margin-top:12px}
.st-sub label{font-size:13px;color:var(--text-3)}
.st-sub input{
  width:100%;padding:12px 14px;border-radius:var(--r-sm);
  background:var(--surface-2);border:1px solid var(--line);color:var(--text-1);font-size:14.5px;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.st-sub input::placeholder{color:var(--text-3)}
.st-sub input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(108,76,241,.2)}
.st-sub button{
  width:100%;padding:12px 20px;border-radius:var(--r-pill);border:0;cursor:pointer;
  background:var(--primary);color:#fff;font-weight:600;font-size:14.5px;
  transition:background var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.st-sub button:hover{background:#7c60f5;transform:translateY(-2px)}
.st-footer__bottom{
  margin-top:44px;padding-top:22px;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);
}
.st-footer__bottom a{color:var(--text-3)}
.st-footer__bottom a:hover{color:var(--accent)}

/* ---------- mobile tabbar ---------- */
.st-tabbar{
  display:none;
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  height:calc(56px + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
  background:rgba(9,10,18,.94);
  backdrop-filter:blur(12px);
  border-top:1px solid var(--line);
}
.st-tabbar a{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:10px;color:var(--text-3);position:relative;
}
.st-tabbar a svg{width:22px;height:22px;stroke-width:1.6}
.st-tabbar a.is-active{color:var(--accent)}
.st-tabbar a.is-active::after{content:"";position:absolute;bottom:6px;width:3px;height:3px;border-radius:50%;background:var(--accent)}

.st-to-top{
  position:fixed;right:24px;bottom:88px;z-index:65;
  width:44px;height:44px;border-radius:50%;
  display:grid;place-items:center;cursor:pointer;
  background:var(--surface-2);border:1px solid var(--line);color:var(--text-2);
  opacity:0;visibility:hidden;transition:opacity var(--dur) var(--ease),visibility var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.st-to-top.is-show{opacity:1;visibility:visible}
.st-to-top:hover{color:var(--accent);border-color:var(--line-hover);transform:translateY(-3px)}

/* ---------- reveal ---------- */
.st-reveal{opacity:0;transform:translateY(14px);transition:opacity 420ms var(--ease),transform 420ms var(--ease)}
.st-reveal.is-in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .st-container{padding:0 24px}
  .st-rank__card{grid-template-columns:170px 1fr}
  .st-timeline{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991.98px){
  .st-menu{display:none}
  .st-nav__toggle{display:grid}
  .st-hero--cat{padding:126px 0 56px}
  .st-hero__inner{grid-template-columns:1fr;gap:32px}
  .st-hero__figure{order:-1}
  .st-section{padding:72px 0}
  .st-info{grid-template-columns:1fr}
  .st-footer__grid{grid-template-columns:1fr 1fr;gap:32px}
  .st-tabbar{display:flex}
  body{padding-bottom:calc(56px + env(safe-area-inset-bottom))}
  .st-to-top{bottom:76px;right:16px}
  .st-cta{padding:34px 28px}
}
@media (max-width:767.98px){
  .st-rank__item{grid-template-columns:1fr;gap:12px}
  .st-rank__no{font-size:40px;padding-top:0}
  .st-rank__card{grid-template-columns:1fr;padding:16px}
  .st-rank__thumb img{aspect-ratio:16/9}
  .st-timeline{grid-template-columns:1fr}
  .st-section__head{margin-bottom:30px}
}
@media (max-width:575.98px){
  .st-container{padding:0 18px}
  .st-brand__text{font-size:15px}
  .st-brand__mark{width:26px;height:26px}
  .st-hero--cat{padding:112px 0 48px}
  .st-stats{gap:18px}
  .st-stat b{font-size:26px}
  .st-btn{padding:10px 18px;font-size:14px}
  .st-info__card{flex-direction:column;gap:12px}
  .st-footer__grid{grid-template-columns:1fr}
  .st-footer{padding:48px 0 24px}
  .st-faq__q{font-size:15.5px;padding:16px 18px}
  .st-faq__a p{padding:0 18px 18px;font-size:14.5px}
  .st-cta{padding:28px 20px;flex-direction:column;align-items:flex-start;text-align:left}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .st-reveal{opacity:1!important;transform:none!important}
}