/* roulang page: index */
:root{
  --bg-0:#060A14;
  --bg-1:#0B1222;
  --bg-2:#121A2E;
  --glass:rgba(255,255,255,.06);
  --primary:#35E3D2;
  --secondary:#6C63FF;
  --accent:#FFB33F;
  --t1:#F2F6FF;
  --t2:#A9B6CE;
  --t3:#6B7893;
  --line:rgba(255,255,255,.08);
  --line-hover:rgba(53,227,210,.45);
  --r-card:20px;
  --r-btn:12px;
  --r-img:16px;
  --r-pill:999px;
  --r-badge:6px;
  --shadow-card:0 12px 32px rgba(0,0,0,.45);
  --shadow-glow:0 0 0 1px rgba(53,227,210,.5), 0 8px 24px rgba(53,227,210,.25);
  --shadow-glow-hover:0 0 0 1px rgba(53,227,210,.65), 0 14px 34px rgba(53,227,210,.35);
  --sec-pc:96px;
  --sec-tab:72px;
  --sec-mob:56px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t2);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.is-locked{overflow:hidden}
h1,h2,h3,h4{margin:0;color:var(--t1);line-height:1.28;letter-spacing:-0.01em}
p{margin:0}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block;border-style:none}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 32px}
.section{padding-top:var(--sec-pc)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px}
.sec-head h2{font-size:28px;font-weight:700}
.sec-head .sec-sub{margin-top:10px;font-size:14px;color:var(--t3);max-width:640px}
.sec-link{font-size:14px;color:var(--primary);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;white-space:nowrap}
.sec-link:hover{color:#7df3e6;text-decoration-thickness:2px}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  transition:background .28s ease,backdrop-filter .28s ease,box-shadow .28s ease,border-color .28s ease;
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:rgba(6,10,20,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:rgba(255,255,255,.08);
  box-shadow:0 8px 30px rgba(0,0,0,.45), inset 0 1px 0 rgba(255,255,255,.08);
}
.header-inner{display:flex;align-items:center;gap:24px;height:76px;padding:0 32px;max-width:1280px;margin:0 auto}
.brand{display:flex;align-items:baseline;gap:8px;flex-shrink:0}
.brand-main{font-size:22px;font-weight:700;color:var(--t1);letter-spacing:.06em}
.brand-sub{font-size:10px;letter-spacing:.28em;color:var(--primary);text-transform:uppercase}
.nav-pills{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-pill{
  position:relative;padding:9px 16px;border-radius:var(--r-pill);
  font-size:14px;color:var(--t2);transition:color .18s ease,background .18s ease;
}
.nav-pill::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%) scaleX(.4);
  width:26px;height:2px;border-radius:2px;background:var(--primary);
  box-shadow:0 0 10px rgba(53,227,210,.8);opacity:0;transition:opacity .18s ease,transform .18s ease;
}
.nav-pill:hover{color:var(--t1);background:rgba(255,255,255,.06)}
.nav-pill.active{color:var(--t1);background:rgba(53,227,210,.12)}
.nav-pill.active::before{opacity:1;transform:translateX(-50%) scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.icon-btn{
  width:44px;height:44px;display:grid;place-items:center;border-radius:var(--r-btn);
  border:1px solid var(--line);color:var(--t2);transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.icon-btn:hover{border-color:var(--line-hover);color:var(--t1);background:rgba(255,255,255,.04)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:14px;font-weight:600;letter-spacing:.02em;
  transition:transform .16s ease-out,box-shadow .16s ease-out,background .16s ease-out,border-color .16s ease-out,color .16s ease-out;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary) 0%,var(--secondary) 100%);
  color:#04121A;box-shadow:var(--shadow-glow);
}
.btn-primary:hover{box-shadow:var(--shadow-glow-hover);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--shadow-glow)}
.btn-ghost{
  background:transparent;border:1px solid var(--line);color:var(--t1);
}
.btn-ghost:hover{border-color:var(--line-hover);background:rgba(255,255,255,.05)}
.btn-ghost:active{transform:translateY(1px)}
.header-cta{padding:0 18px;min-height:42px;font-size:13px}
.burger{display:none}
.search-panel{
  display:none;border-top:1px solid var(--line);background:rgba(6,10,20,.94);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.search-panel.open{display:block}
.search-inner{max-width:1280px;margin:0 auto;padding:16px 32px 22px;display:flex;gap:12px}
.search-inner input{
  flex:1;min-height:48px;padding:0 18px;border-radius:var(--r-btn);
  background:var(--bg-2);border:1px solid var(--line);color:var(--t1);font-size:15px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-inner input::placeholder{color:var(--t3)}
.search-inner input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(53,227,210,.14)}

/* ---------- Mobile drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;background:rgba(6,10,20,.97);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  transform:translateY(-100%);transition:transform .32s ease;display:flex;flex-direction:column;
  padding:22px 24px 28px;overflow-y:auto;
}
.drawer.open{transform:translateY(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{
  padding:18px 4px;font-size:17px;color:var(--t1);border-bottom:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
}
.drawer-nav a.active{color:var(--primary)}
.drawer-foot{margin-top:auto;padding-top:26px}

/* ---------- Hero ---------- */
.hero{
  position:relative;min-height:78vh;display:flex;align-items:flex-end;
  padding:150px 0 56px;overflow:hidden;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center 30%;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,20,.86) 0%,rgba(6,10,20,.62) 38%,rgba(6,10,20,.94) 88%,var(--bg-0) 100%);
}
.hero::after{
  content:"";position:absolute;left:-10%;bottom:-25%;width:70%;height:80%;
  background:radial-gradient(circle at 30% 60%,rgba(53,227,210,.20) 0%,rgba(53,227,210,0) 66%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;max-width:820px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--line);color:var(--primary);
  font-size:12.5px;letter-spacing:.08em;margin-bottom:22px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.hero-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary)}
.hero h1{font-size:48px;font-weight:700;line-height:1.18;letter-spacing:-0.01em}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.85;color:var(--t2);max-width:660px}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-btns .btn{min-height:50px;padding:0 28px;font-size:15px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px}
.tag-pill{
  display:inline-flex;align-items:center;gap:8px;min-height:38px;padding:0 16px;
  border-radius:var(--r-pill);border:1px solid var(--line);background:rgba(255,255,255,.045);
  color:var(--t2);font-size:13px;transition:border-color .18s ease,color .18s ease,transform .18s ease;
}
.tag-pill:hover{border-color:var(--line-hover);color:var(--t1);transform:translateY(-1px)}
.tag-pill i{color:var(--primary);font-style:normal}
.hero-wave{position:relative;z-index:2;margin-top:44px;opacity:.55}
.hero-wave svg{width:100%;max-width:520px;height:34px;display:block}

/* ---------- Stat strip ---------- */
.stat-strip{margin-top:-36px;position:relative;z-index:5}
.stat-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-card);
}
.stat-cell{background:rgba(11,18,34,.92);padding:24px 22px}
.stat-cell strong{display:block;font-size:26px;color:var(--t1);font-family:Inter,system-ui,sans-serif;letter-spacing:-0.02em}
.stat-cell span{display:block;margin-top:6px;font-size:13px;color:var(--t3)}

/* ---------- Rail ---------- */
.rail-wrap{position:relative}
.rail-wrap::after{
  content:"";position:absolute;top:0;right:-32px;bottom:20px;width:110px;pointer-events:none;
  background:linear-gradient(90deg,rgba(6,10,20,0) 0%,var(--bg-0) 92%);
}
.rail{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:4px 0 20px;scrollbar-width:none;-ms-overflow-style:none;
}
.rail::-webkit-scrollbar{display:none}
.rail-item{flex:0 0 254px;scroll-snap-align:start}
.media-card{
  position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);
  background:var(--bg-2);box-shadow:var(--shadow-card);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.media-card:hover{transform:translateY(-4px);border-color:var(--line-hover);box-shadow:0 18px 40px rgba(0,0,0,.55)}
.media-thumb{position:relative;aspect-ratio:3/4;overflow:hidden}
.media-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.media-card:hover .media-thumb img{transform:scale(1.04)}
.media-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,20,0) 40%,rgba(6,10,20,.9) 100%);
}
.badge{
  position:absolute;top:12px;left:12px;z-index:2;padding:4px 10px;border-radius:var(--r-badge);
  font-size:11.5px;letter-spacing:.04em;background:rgba(53,227,210,.14);border:1px solid rgba(53,227,210,.45);color:#8bf4e8;
}
.corner-chip{
  position:absolute;bottom:12px;right:12px;z-index:2;padding:4px 10px;border-radius:var(--r-badge);
  font-size:11.5px;background:rgba(255,179,63,.16);border:1px solid rgba(255,179,63,.45);color:var(--accent);
}
.media-body{padding:16px 18px 20px}
.media-body h3{font-size:16px;font-weight:600;line-height:1.5}
.media-body p{margin-top:8px;font-size:13px;color:var(--t3);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- Feature combo ---------- */
.combo{display:grid;grid-template-columns:7fr 5fr;gap:24px}
.combo-main{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);min-height:420px;box-shadow:var(--shadow-card)}
.combo-main img{width:100%;height:100%;min-height:420px;object-fit:cover}
.combo-main::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,20,.1) 30%,rgba(6,10,20,.92) 100%);
}
.combo-main-text{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:26px 26px 28px}
.combo-main-text h3{font-size:22px;font-weight:700}
.combo-main-text p{margin-top:10px;font-size:14px;color:var(--t2);max-width:520px}
.combo-side{display:flex;flex-direction:column;gap:16px}
.mini-card{
  display:flex;gap:16px;padding:14px;border-radius:var(--r-card);
  background:var(--bg-2);border:1px solid var(--line);flex:1;align-items:center;
  transition:border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.mini-card:hover{border-color:var(--line-hover);transform:translateY(-2px);box-shadow:var(--shadow-card)}
.mini-card img{width:96px;height:96px;border-radius:var(--r-img);object-fit:cover;flex-shrink:0;border:1px solid var(--line)}
.mini-card h3{font-size:16px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mini-card p{margin-top:6px;font-size:13px;color:var(--t3);line-height:1.65;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- News / CMS ---------- */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.news-card{
  position:relative;display:block;padding:22px 24px 22px 26px;border-radius:var(--r-card);
  background:var(--bg-2);border:1px solid var(--line);
  transition:border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  overflow:hidden;
}
.news-card::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:2px;border-radius:2px;
  background:var(--primary);opacity:0;transition:opacity .18s ease;
}
.news-card:hover{border-color:var(--line-hover);transform:translateY(-3px);box-shadow:var(--shadow-card)}
.news-card:hover::before{opacity:1}
.news-pill{
  display:inline-flex;align-items:center;padding:3px 11px;border-radius:var(--r-pill);
  font-size:11.5px;color:var(--primary);border:1px solid rgba(53,227,210,.42);background:rgba(53,227,210,.07);
}
.news-card h3{margin-top:14px;font-size:17px;font-weight:600;line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card p{margin-top:10px;font-size:13.5px;color:var(--t2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:14px;display:flex;align-items:center;gap:14px;font-size:12.5px;color:var(--t3)}
.news-meta .arrow{margin-left:auto;color:var(--primary);transition:transform .18s ease}
.news-card:hover .news-meta .arrow{transform:translateX(4px)}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;border-radius:var(--r-card);
  background:var(--bg-2);border:1px dashed rgba(255,255,255,.14);
}
.empty-state .empty-ico{
  width:56px;height:56px;margin:0 auto 18px;border-radius:50%;display:grid;place-items:center;
  background:rgba(53,227,210,.1);border:1px solid rgba(53,227,210,.35);color:var(--primary);font-size:22px;
}
.empty-state p{font-size:15px;color:var(--t2)}
.empty-state .btn{margin-top:22px}

/* ---------- Category grid ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.cat-card{
  position:relative;overflow:hidden;border-radius:var(--r-card);border:1px solid var(--line);
  display:flex;flex-direction:column;justify-content:flex-end;padding:26px;
  min-height:200px;transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.cat-card:hover{border-color:var(--line-hover);transform:translateY(-4px);box-shadow:var(--shadow-card)}
.cat-card img.cat-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0;transition:transform .45s ease}
.cat-card:hover img.cat-bg{transform:scale(1.05)}
.cat-card::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(6,10,20,.35) 0%,rgba(6,10,20,.88) 100%);
}
.cat-card-body{position:relative;z-index:2}
.cat-card.big{grid-column:span 6;grid-row:span 3;min-height:440px}
.cat-card.small{grid-column:span 6;min-height:205px}
.cat-card h3{font-size:20px;font-weight:700}
.cat-card.big h3{font-size:26px}
.cat-card p{margin-top:8px;font-size:13.5px;color:var(--t2);line-height:1.7;max-width:520px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cat-card .cat-foot{margin-top:16px;display:flex;align-items:center;gap:12px;font-size:12.5px;color:var(--t3)}
.cat-card .cat-foot .pill{
  padding:3px 10px;border-radius:var(--r-pill);border:1px solid var(--line);
  background:rgba(255,255,255,.06);color:var(--t2);
}

/* ---------- Evidence ---------- */
.evidence{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-top:var(--sec-pc);padding:var(--sec-pc) 0}
.ev-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:36px}
.ev-card{padding:26px;border-radius:var(--r-card);background:var(--bg-2);border:1px solid var(--line)}
.ev-card h3{font-size:17px;font-weight:600}
.ev-card p{margin-top:10px;font-size:13.5px;line-height:1.8;color:var(--t2)}
.ev-card .ev-num{
  display:block;font-family:Inter,system-ui,sans-serif;font-size:30px;color:var(--primary);
  letter-spacing:-0.02em;margin-bottom:12px;
}
.ev-quote{
  margin-top:36px;padding:28px 30px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.ev-quote p{font-size:15.5px;color:var(--t1);line-height:1.9}
.ev-quote span{display:block;margin-top:14px;font-size:13px;color:var(--t3)}

/* ---------- FAQ ---------- */
.faq-wrap{
  border-radius:var(--r-card);border:1px solid var(--line);
  background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);overflow:hidden;
}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:16px;
  padding:22px 26px;font-size:16.5px;font-weight:600;color:var(--t1);
  transition:background .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:rgba(255,255,255,.04)}
.faq-item summary::after{
  content:"+";margin-left:auto;font-size:22px;line-height:1;color:var(--primary);
  transition:transform .25s ease;flex-shrink:0;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-answer{padding:0 26px 24px;font-size:14.5px;line-height:1.9;color:var(--t2);max-width:940px}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;margin-top:var(--sec-pc);border-radius:var(--r-card);overflow:hidden;
  background:linear-gradient(120deg,rgba(53,227,210,.14) 0%,rgba(108,99,255,.16) 100%),var(--bg-1);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  padding:44px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.cta-band::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(53,227,210,0) 0%,var(--primary) 45%,var(--secondary) 70%,rgba(108,99,255,0) 100%);
}
.cta-band h2{font-size:26px;font-weight:700}
.cta-band p{margin-top:10px;font-size:14.5px;color:var(--t2);max-width:620px}
.cta-band .btn{flex-shrink:0;min-height:50px;padding:0 28px}

/* ---------- Footer ---------- */
.site-footer{margin-top:var(--sec-pc);background:var(--bg-1);border-top:1px solid var(--line);padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand-main{font-size:20px}
.footer-brand p{margin-top:16px;font-size:13.5px;color:var(--t3);line-height:1.9;max-width:320px}
.footer-col h3{font-size:14px;color:var(--t1);letter-spacing:.06em;margin-bottom:18px}
.footer-col li + li{margin-top:11px}
.footer-col a{font-size:13.5px;color:var(--t3);transition:color .18s ease}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:52px;border-top:1px solid var(--line);padding:22px 0 30px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:12.5px;color:var(--t3);
}
.footer-bottom a{color:var(--t3)}
.footer-bottom a:hover{color:var(--primary)}

/* ---------- Responsive ---------- */
@media (max-width:1279px){
  .rail-item{flex:0 0 240px}
}
@media (max-width:1024px){
  :root{--sec-pc:72px}
  .container{padding:0 24px}
  .header-inner{padding:0 24px}
  .nav-pills{display:none}
  .header-cta{display:none}
  .burger{display:grid}
  .hero{min-height:66vh;padding:130px 0 48px}
  .hero h1{font-size:36px}
  .combo{grid-template-columns:1fr}
  .combo-main{min-height:320px}
  .combo-main img{min-height:320px}
  .cat-card.big{grid-column:span 12;grid-row:auto;min-height:320px}
  .cat-card.small{grid-column:span 12;min-height:190px}
  .ev-grid{grid-template-columns:1fr;gap:16px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 28px}
  .search-inner{padding:14px 24px 20px}
}
@media (max-width:767px){
  :root{--sec-pc:56px}
  .container{padding:0 20px}
  .header-inner{padding:0 20px;height:66px}
  .hero{min-height:62vh;padding:112px 0 40px}
  .hero h1{font-size:28px;line-height:1.3}
  .hero-sub{font-size:15px}
  .hero-btns .btn{width:100%}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .rail-item{flex:0 0 76%}
  .rail-wrap::after{display:none}
  .news-grid{grid-template-columns:1fr}
  .mini-card img{width:80px;height:80px}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px}
  .sec-head h2{font-size:22px}
  .faq-item summary{padding:18px 20px;font-size:15.5px}
  .faq-answer{padding:0 20px 20px}
  .cta-band h2{font-size:21px}
  .cta-band .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .hero h1{font-size:25px}
  .cat-card{padding:20px}
  .news-card{padding:18px 18px 18px 22px}
}

/* roulang page: article */
:root{
  --bg-0:#060A14;
  --bg-1:#0B1222;
  --bg-2:#121A2E;
  --glass:rgba(255,255,255,.06);
  --primary:#35E3D2;
  --secondary:#6C63FF;
  --accent:#FFB33F;
  --t1:#F2F6FF;
  --t2:#A9B6CE;
  --t3:#6B7893;
  --line:rgba(255,255,255,.08);
  --radius-card:20px;
  --radius-btn:12px;
  --radius-img:16px;
  --shadow-card:0 12px 32px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(53,227,210,.5), 0 8px 24px rgba(53,227,210,.25);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t2);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--t1);font-weight:700}
::selection{background:rgba(53,227,210,.32);color:#04121A}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:rgba(53,227,210,.28);border-radius:999px}
::-webkit-scrollbar-thumb:hover{background:rgba(53,227,210,.45)}

.container{width:100%;max-width:1280px;margin:0 auto;padding:0 32px}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:transparent;border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease,backdrop-filter .3s ease;
}
.site-header.is-scrolled{
  background:rgba(6,10,20,.84);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.header-inner{display:flex;align-items:center;gap:22px;height:72px}
.brand{display:flex;flex-direction:column;line-height:1.05;flex-shrink:0}
.brand-main{font-size:20px;font-weight:700;color:var(--t1);letter-spacing:.08em}
.brand-sub{font-size:10px;letter-spacing:.32em;color:var(--primary);margin-top:4px;text-transform:uppercase}
.nav-pills{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-pill{
  position:relative;padding:9px 15px;border-radius:999px;font-size:14px;color:var(--t2);
  transition:color .18s ease,background .18s ease;white-space:nowrap;
}
.nav-pill:hover{color:var(--t1);background:var(--glass)}
.nav-pill.active{color:var(--t1);background:rgba(53,227,210,.12)}
.nav-pill.active::after{
  content:"";position:absolute;left:50%;top:2px;transform:translateX(-50%);
  width:22px;height:2px;border-radius:2px;background:var(--primary);box-shadow:0 0 10px var(--primary);
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.header-actions .nav-pills + .header-actions{margin-left:0}
.nav-pills{margin-right:0}
.search-box{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);border-radius:999px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box i{color:var(--t3);font-size:13px}
.search-box input{width:124px;background:transparent;border:0;outline:none;color:var(--t1);font-size:14px}
.search-box input::placeholder{color:var(--t3)}
.search-box:focus-within{border-color:rgba(53,227,210,.55);box-shadow:0 0 0 3px rgba(53,227,210,.12)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:all .16s ease-out;text-align:center;
}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--secondary));color:#04121A;box-shadow:var(--glow)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(53,227,210,.6),0 12px 32px rgba(53,227,210,.35)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(53,227,210,.45),0 4px 14px rgba(53,227,210,.2)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--t1)}
.btn-ghost:hover{border-color:rgba(53,227,210,.45);background:rgba(53,227,210,.07)}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}

.menu-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;background:rgba(255,255,255,.05);border:1px solid var(--line);
  border-radius:12px;cursor:pointer;padding:0 11px;
}
.menu-toggle span{display:block;height:2px;border-radius:2px;background:var(--t1);transition:transform .2s ease}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.drawer{
  position:fixed;inset:0;z-index:80;background:rgba(6,10,20,.94);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  display:flex;flex-direction:column;justify-content:center;padding:88px 24px 32px;
}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{
  padding:16px 4px;font-size:17px;color:var(--t1);border-bottom:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;min-height:44px;
}
.drawer-nav a i{color:var(--t3);font-size:12px}
.drawer-cta{margin-top:28px}
.drawer-tip{margin-top:18px;font-size:13px;color:var(--t3)}

/* ---------- article hero ---------- */
.page-top{padding-top:72px}
.article-hero{
  position:relative;
  padding:64px 0 56px;
  background:
    linear-gradient(180deg,rgba(6,10,20,.55) 0%,rgba(6,10,20,.88) 62%,var(--bg-0) 100%),
    radial-gradient(760px 420px at 12% 88%,rgba(53,227,210,.16),transparent 70%),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.article-hero::after{
  content:"";position:absolute;right:8%;top:54px;width:52px;height:2px;
  background:linear-gradient(90deg,var(--primary),transparent);opacity:.7;
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--t3);margin-bottom:22px;flex-wrap:wrap}
.breadcrumb a{color:var(--t3);transition:color .16s ease}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:rgba(255,255,255,.16)}
.breadcrumb .current{color:var(--t2);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;font-size:12px;letter-spacing:.04em;
  color:var(--primary);border:1px solid rgba(53,227,210,.35);background:rgba(53,227,210,.08);
}
.article-hero h1{
  font-size:40px;line-height:1.32;letter-spacing:-.01em;font-weight:700;
  margin:18px 0 20px;max-width:920px;word-break:break-word;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:13px;color:var(--t3)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.2)}
.article-meta i{color:var(--primary);margin-right:6px;font-size:12px}

/* ---------- article body ---------- */
.article-main{padding:56px 0 0}
.article-wrap{max-width:840px;margin:0 auto}
.article-body{font-size:17px;line-height:1.9;color:var(--t2);word-break:break-word}
.article-body p{margin:0 0 1.1em}
.article-body h1,.article-body h2{
  font-size:28px;line-height:1.38;color:var(--t1);font-weight:700;
  margin:48px 0 20px;padding-left:16px;position:relative;
}
.article-body h2::before,.article-body h1::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:3px;border-radius:3px;
  background:var(--primary);box-shadow:0 0 12px rgba(53,227,210,.75);
}
.article-body h3{font-size:20px;line-height:1.5;color:var(--t1);font-weight:600;margin:32px 0 14px}
.article-body h4{font-size:17px;color:var(--t1);font-weight:600;margin:24px 0 10px}
.article-body ul{margin:0 0 1.2em}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:10px}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:2px;
  background:var(--primary);opacity:.85;
}
.article-body ol{list-style:decimal;margin:0 0 1.2em;padding-left:22px}
.article-body ol li{margin-bottom:10px;padding-left:4px}
.article-body ol li::marker{color:var(--primary);font-weight:600}
.article-body blockquote{
  margin:26px 0;padding:18px 24px;border-left:3px solid var(--primary);
  background:rgba(255,255,255,.04);border-radius:0 14px 14px 0;color:var(--t1);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;transition:color .16s ease}
.article-body a:hover{color:#87f5ea;text-decoration-thickness:2px}
.article-body img{border-radius:var(--radius-img);box-shadow:inset 0 0 0 1px rgba(255,255,255,.08),var(--shadow-card);margin:24px 0}
.article-body strong{color:var(--t1);font-weight:600}
.article-body hr{border:0;border-top:1px solid var(--line);margin:40px 0}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;border-radius:14px;overflow:hidden}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.article-body th{background:rgba(53,227,210,.08);color:var(--t1);font-weight:600}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.025)}
.article-body pre{
  background:#04070F;border:1px solid var(--line);border-radius:14px;padding:18px;
  overflow-x:auto;font-size:14px;line-height:1.7;color:#cfe4ff;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.article-body code{
  background:rgba(53,227,210,.12);color:#8ff3e8;border-radius:6px;
  padding:2px 6px;font-size:.9em;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.article-body pre code{background:none;padding:0;color:inherit}

.empty-state{
  display:flex;flex-direction:column;align-items:center;text-align:center;gap:14px;
  padding:64px 28px;background:var(--bg-1);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-card);
}
.empty-state .icon{
  width:64px;height:64px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:rgba(53,227,210,.1);color:var(--primary);font-size:22px;
}
.empty-state h2{font-size:20px;font-weight:600}
.empty-state p{font-size:14px;color:var(--t3);margin:0}

/* ---------- related ---------- */
.section{padding:72px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:26px}
.section-head h2{font-size:26px;line-height:1.35}
.section-head .sub{font-size:13px;color:var(--t3);margin-top:8px}
.link-more{font-size:14px;color:var(--primary);text-decoration:underline;text-underline-offset:4px;white-space:nowrap}
.link-more:hover{text-decoration-thickness:2px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rel-card{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(53,227,210,.45);box-shadow:var(--shadow-card)}
.rel-thumb{position:relative;aspect-ratio:16/10;overflow:hidden}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.rel-card:hover .rel-thumb img{transform:scale(1.04)}
.rel-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-body h3{font-size:17px;line-height:1.5;font-weight:600}
.rel-body p{font-size:14px;line-height:1.7;color:var(--t3);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-back{margin-top:32px;display:flex;justify-content:center}

/* ---------- CTA ---------- */
.cta-band{
  margin-top:80px;position:relative;overflow:hidden;
  background:linear-gradient(120deg,rgba(53,227,210,.1),rgba(108,99,255,.12)),var(--bg-1);
  border:1px solid var(--line);border-radius:var(--radius-card);
  padding:40px;display:flex;align-items:center;justify-content:space-between;gap:28px;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--shadow-card);
}
.cta-band::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,227,210,.8),transparent);
}
.cta-band h2{font-size:24px;line-height:1.45;margin-bottom:8px}
.cta-band p{margin:0;font-size:14px;color:var(--t2)}
.cta-band .btn{flex-shrink:0}

/* ---------- footer ---------- */
.site-footer{margin-top:96px;background:var(--bg-1);border-top:1px solid var(--line);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--t3);margin:0;max-width:340px}
.footer-col h3{font-size:15px;color:var(--t1);font-weight:600;margin-bottom:16px}
.footer-col ul li{margin-bottom:11px}
.footer-col ul a{font-size:14px;color:var(--t3);transition:color .16s ease}
.footer-col ul a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--t3);
}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .article-hero h1{font-size:36px}
}
@media (max-width:1023px){
  .nav-pills{display:none}
  .search-box{display:none}
  .menu-toggle{display:flex}
  .header-actions{margin-left:auto}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .header-inner{height:64px}
  .page-top{padding-top:64px}
  .article-hero{padding:40px 0 40px}
  .article-hero h1{font-size:28px;line-height:1.36}
  .article-hero::after{display:none}
  .article-main{padding-top:36px}
  .article-wrap{padding:0}
  .article-body{font-size:16px;line-height:1.85}
  .article-body h1,.article-body h2{font-size:22px;margin:36px 0 16px}
  .article-body h3{font-size:18px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .section{padding-top:56px}
  .section-head{flex-direction:column;align-items:flex-start}
  .related-grid{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 22px;text-align:left}
  .cta-band .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{margin-top:64px;padding-top:48px}
}
@media (max-width:520px){
  .article-hero h1{font-size:25px}
  .article-meta{font-size:12px}
  .breadcrumb .current{max-width:180px}
}

/* roulang page: category1 */
:root{
  --bg-0:#060A14; --bg-1:#0B1222; --bg-2:#121A2E;
  --glass:rgba(255,255,255,.06);
  --primary:#35E3D2; --secondary:#6C63FF; --accent:#FFB33F;
  --t1:#F2F6FF; --t2:#A9B6CE; --t3:#6B7893;
  --line:rgba(255,255,255,.08); --line-hover:rgba(53,227,210,.45);
  --r-card:20px; --r-btn:12px; --r-pill:999px; --r-img:16px; --r-badge:6px;
  --shadow-card:0 12px 32px rgba(0,0,0,.45);
  --shadow-glow:0 0 0 1px rgba(53,227,210,.5), 0 8px 24px rgba(53,227,210,.25);
  --shell:1280px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:Inter,system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
html body{
  margin:0; padding:0;
  background:var(--bg-0);
  color:var(--t2);
  font-family:var(--font-cn);
  font-size:16px; line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;color:var(--t1);font-weight:700;letter-spacing:-.01em;line-height:1.3}
p{margin:0}
::selection{background:rgba(53,227,210,.3);color:#fff}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:var(--shell);margin:0 auto;padding:0 32px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ============ header ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease,backdrop-filter .3s ease;
}
.site-header.is-scrolled{
  background:rgba(6,10,20,.82);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom-color:rgba(255,255,255,.1);
  box-shadow:0 10px 30px rgba(0,0,0,.45);
}
.header-inner{display:flex;align-items:center;gap:28px;height:76px}
.brand{display:flex;flex-direction:column;line-height:1.06;flex:0 0 auto}
.brand-main{font-size:20px;font-weight:800;color:var(--t1);letter-spacing:.08em}
.brand-sub{font-size:10px;font-weight:500;color:var(--primary);letter-spacing:.34em;margin-top:2px}
.nav-pills{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-pill{
  position:relative;display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:0 18px;border-radius:var(--r-pill);
  font-size:15px;color:var(--t2);white-space:nowrap;
  transition:background .18s ease,color .18s ease;
}
.nav-pill:hover{background:rgba(255,255,255,.06);color:var(--t1)}
.nav-pill.active{background:rgba(53,227,210,.14);color:#fff;font-weight:600}
.nav-pill.active::after{
  content:"";position:absolute;top:3px;left:50%;transform:translateX(-50%);
  width:26px;height:2px;border-radius:2px;background:var(--primary);
  box-shadow:0 0 10px rgba(53,227,210,.9);
}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.search-mini{
  display:flex;align-items:center;gap:8px;height:44px;padding:0 16px;
  border-radius:var(--r-pill);border:1px solid var(--line);
  background:rgba(255,255,255,.04);color:var(--t3);font-size:14px;
  transition:border-color .18s ease,background .18s ease,color .18s ease;
}
.search-mini:hover{border-color:var(--line-hover);color:var(--t1);background:rgba(255,255,255,.07)}
.menu-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border-radius:var(--r-btn);border:1px solid var(--line);
  background:rgba(255,255,255,.04);color:var(--t1);
}
.menu-toggle:hover{border-color:var(--line-hover)}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 22px;border-radius:var(--r-btn);
  border:1px solid transparent;font-size:15px;font-weight:600;
  cursor:pointer;transition:transform .16s ease-out,box-shadow .16s ease-out,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:linear-gradient(135deg,#35E3D2,#6C63FF);color:#04121A;box-shadow:var(--shadow-glow)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(53,227,210,.7),0 14px 34px rgba(53,227,210,.34)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:var(--line);color:var(--t1)}
.btn-ghost:hover{border-color:var(--line-hover);background:rgba(255,255,255,.08)}
.btn:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(53,227,210,.35)}
.btn-sm{min-height:40px;padding:9px 18px;font-size:14px}
.link-arrow{color:var(--primary);font-size:14px;text-decoration:underline;text-underline-offset:4px}
.link-arrow:hover{color:#7CF3E7;text-decoration-thickness:2px}

/* ============ drawer ============ */
.mobile-drawer{
  position:fixed;top:76px;left:0;right:0;bottom:0;z-index:80;
  background:rgba(6,10,20,.97);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  padding:12px 0 28px;overflow-y:auto;
  opacity:0;visibility:hidden;transform:translateY(-14px);
  transition:opacity .28s ease,transform .28s ease,visibility .28s;
}
.mobile-drawer.is-open{opacity:1;visibility:visible;transform:none}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:56px;padding:0 24px;font-size:16px;color:var(--t1);
  border-bottom:1px solid var(--line);
}
.drawer-link.active{color:var(--primary);font-weight:600}
.drawer-link span.mk{color:var(--t3);font-size:13px}
.drawer-cta{margin:26px 24px 0}

/* ============ hero ============ */
.cat-hero{position:relative;padding:150px 0 68px;overflow:hidden}
.cat-hero-bg{
  position:absolute;inset:0;
  background:url(/assets/images/backpic/back-1.png) center/cover no-repeat;
  opacity:.34;
}
.cat-hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,20,.86) 0%,rgba(6,10,20,.72) 42%,rgba(6,10,20,.96) 100%),
             radial-gradient(60% 70% at 12% 88%,rgba(53,227,210,.18),transparent 70%);
}
.cat-hero-inner{position:relative;display:grid;grid-template-columns:minmax(0,1.45fr) minmax(0,.85fr);gap:56px;align-items:center}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--t3);margin-bottom:20px}
.crumb a:hover{color:var(--primary)}
.crumb .sep{opacity:.5}
.crumb .cur{color:var(--t2)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  border:1px solid rgba(53,227,210,.35);background:rgba(53,227,210,.1);
  color:#B8F6EF;font-size:13px;letter-spacing:.06em;margin-bottom:20px;
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary);display:block}
.cat-hero h1{font-size:clamp(28px,3.6vw,44px);line-height:1.22;margin-bottom:20px}
.cat-hero h1 em{font-style:normal;background:linear-gradient(120deg,#35E3D2,#6C63FF);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{font-size:17px;line-height:1.9;color:var(--t2);max-width:640px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.hero-pills{display:flex;flex-wrap:wrap;gap:10px}
.hero-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--line);
  font-size:13px;color:var(--t2);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.hero-pill b{color:var(--primary);font-weight:600}
.hero-visual{position:relative}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);border:1px solid rgba(255,255,255,.12);box-shadow:var(--shadow-card)}
.hero-visual::after{
  content:"";position:absolute;top:-10px;right:-10px;width:56px;height:56px;
  border-top:2px solid rgba(53,227,210,.65);border-right:2px solid rgba(53,227,210,.65);
  border-top-right-radius:14px;
}
.hero-badge{
  position:absolute;left:18px;bottom:18px;
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:var(--r-pill);
  background:rgba(6,10,20,.72);border:1px solid rgba(255,255,255,.14);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  font-size:13px;color:#DFF7F3;
}

/* ============ band / chips ============ */
.band{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:linear-gradient(180deg,rgba(11,18,34,.7),rgba(6,10,20,.4))}
.band-inner{padding:20px 0}
.chip-bar{display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;padding-bottom:4px}
.chip-bar::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  font-size:14px;color:var(--t2);white-space:nowrap;
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.chip:hover{border-color:var(--line-hover);color:var(--t1)}
.chip.is-active{border-color:var(--line-hover);background:rgba(53,227,210,.12);color:#E9FFFC;font-weight:600}
.chip b{font-family:var(--font-num);color:var(--primary)}

/* ============ sections ============ */
.section{padding:92px 0}
.section.alt{background:linear-gradient(180deg,rgba(11,18,34,.65),rgba(6,10,20,0) 78%)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:40px;flex-wrap:wrap}
.section-head h2{font-size:clamp(23px,2.4vw,30px)}
.section-head p{margin-top:12px;font-size:15px;color:var(--t3);max-width:720px}
.section-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--primary);
  letter-spacing:.1em;margin-bottom:12px;
}
.section-tag::before{content:"";width:18px;height:1px;background:var(--primary);opacity:.8}

/* ============ timeline ============ */
.timeline{position:relative;padding:6px 0}
.timeline::before{
  content:"";position:absolute;left:23px;top:14px;bottom:26px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,rgba(53,227,210,.75),rgba(108,99,255,.45) 55%,rgba(53,227,210,0));
}
.step{position:relative;padding-left:76px;margin-bottom:22px}
.step:last-child{margin-bottom:0}
.step-node{
  position:absolute;left:0;top:6px;width:48px;height:48px;border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:16px;font-weight:700;color:#EAFBF8;
  background:linear-gradient(135deg,rgba(53,227,210,.22),rgba(108,99,255,.22));
  border:1px solid rgba(53,227,210,.45);
  box-shadow:0 0 18px rgba(53,227,210,.22);
}
.step-card{
  background:var(--bg-2);
  border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 24px;box-shadow:var(--shadow-card);
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.step-card:hover{transform:translateY(-2px);border-color:var(--line-hover);box-shadow:0 16px 38px rgba(0,0,0,.5)}
.step-top{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:10px}
.step-top h3{font-size:17px;font-weight:600}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--r-badge);
  font-size:12px;font-family:var(--font-num);
  border:1px solid rgba(255,179,63,.4);background:rgba(255,179,63,.12);color:#FFD79A;
}
.badge.cyan{border-color:rgba(53,227,210,.4);background:rgba(53,227,210,.12);color:#A9F4EB}
.step-card p{font-size:15px;line-height:1.85;color:var(--t2)}
.step-note{
  margin-top:14px;padding:10px 14px;border-left:2px solid rgba(53,227,210,.6);
  background:rgba(53,227,210,.07);border-radius:0 10px 10px 0;
  font-size:14px;color:#C7F5F0;
}

/* ============ scenario cards ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.card{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .18s ease,border-color .18s ease;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-hover)}
.card-media{position:relative;overflow:hidden}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s ease}
.card:hover .card-media img{transform:scale(1.04)}
.card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,20,0) 45%,rgba(6,10,20,.82))}
.card-body{padding:22px 24px 24px}
.card-body h3{font-size:17px;font-weight:600;margin-bottom:10px}
.card-body p{font-size:14.5px;line-height:1.85;color:var(--t2)}
.tagline{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tag{
  display:inline-flex;align-items:center;padding:5px 11px;border-radius:var(--r-pill);
  border:1px solid rgba(53,227,210,.35);background:rgba(53,227,210,.08);
  color:#A9F4EB;font-size:12.5px;
}

/* ============ spec rows ============ */
.spec{
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-card);
}
.spec-row{
  display:grid;grid-template-columns:minmax(0,300px) minmax(0,1fr);gap:28px;
  padding:20px 26px;border-bottom:1px solid var(--line);
  transition:background .18s ease;
}
.spec-row:last-child{border-bottom:0}
.spec-row:hover{background:rgba(53,227,210,.05)}
.spec-key{font-size:15px;color:var(--t1);font-weight:600;display:flex;align-items:center;gap:10px}
.spec-key i{width:6px;height:6px;border-radius:2px;background:var(--accent);display:block;flex:0 0 auto}
.spec-val{font-size:14.5px;line-height:1.85;color:var(--t2)}

/* ============ checklist ============ */
.check-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.check-item{
  background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.check-item .idx{font-family:var(--font-num);font-size:13px;color:var(--primary);letter-spacing:.14em}
.check-item h3{font-size:16px;font-weight:600;margin:10px 0 8px}
.check-item p{font-size:14px;line-height:1.8;color:var(--t3)}

/* ============ faq ============ */
.faq{
  background:rgba(18,26,46,.72);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.08);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  overflow:hidden;
}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 26px;text-align:left;font-size:16px;font-weight:600;color:var(--t1);
  transition:color .18s ease,background .18s ease;
}
.faq-q:hover{color:var(--primary);background:rgba(255,255,255,.03)}
.faq-q .plus{
  flex:0 0 auto;width:26px;height:26px;position:relative;border-radius:8px;
  border:1px solid var(--line);transition:transform .25s ease,border-color .25s ease;
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;top:50%;left:50%;background:var(--primary);
  transform:translate(-50%,-50%);border-radius:2px;
}
.faq-q .plus::before{width:12px;height:2px}
.faq-q .plus::after{width:2px;height:12px}
.faq-item.open .faq-q .plus{transform:rotate(45deg);border-color:var(--line-hover)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{padding:0 26px 24px;font-size:14.5px;line-height:1.9;color:var(--t2)}

/* ============ cta ============ */
.cta{
  position:relative;overflow:hidden;
  background:rgba(11,18,34,.85);
  border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  padding:44px 46px;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(53,227,210,0),rgba(53,227,210,.9),rgba(108,99,255,0));
}
.cta::after{
  content:"";position:absolute;right:-60px;bottom:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(108,99,255,.28),transparent 66%);pointer-events:none;
}
.cta-text{position:relative;max-width:640px}
.cta-text h2{font-size:clamp(21px,2.2vw,27px);margin-bottom:12px}
.cta-text p{font-size:15px;color:var(--t3)}
.cta-actions{position:relative;display:flex;gap:14px;flex-wrap:wrap}

/* ============ footer ============ */
.site-footer{
  margin-top:96px;padding:66px 0 28px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,18,34,.35),#080D18 46%);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand-main{font-size:18px}
.footer-brand .brand-sub{font-size:10px;letter-spacing:.3em}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.9;color:var(--t3);max-width:340px}
.footer-col h3{font-size:15px;font-weight:600;color:var(--t1);margin-bottom:16px}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:14px;color:var(--t2);transition:color .18s ease}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:46px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--t3);
}

/* ============ responsive ============ */
@media (max-width:1120px){
  .nav-pills{gap:0}
  .nav-pill{padding:0 13px;font-size:14px}
  .search-mini{display:none}
}
@media (max-width:1024px){
  .nav-pills{display:none}
  .menu-toggle{display:inline-flex}
  .cat-hero{padding:132px 0 58px}
  .cat-hero-inner{grid-template-columns:1fr;gap:36px}
  .hero-visual{max-width:520px}
  .section{padding:72px 0}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .check-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:768px){
  html body{font-size:15.5px}
  .container{padding:0 20px}
  .header-inner{height:68px;gap:14px}
  .mobile-drawer{top:68px}
  .header-cta{display:none}
  .cat-hero{padding:112px 0 46px}
  .hero-lead{font-size:15.5px}
  .section{padding:56px 0}
  .section-head{margin-bottom:28px}
  .grid-3,.grid-2,.check-grid{grid-template-columns:1fr}
  .timeline::before{left:20px;bottom:30px}
  .step{padding-left:64px;margin-bottom:18px}
  .step-node{width:44px;height:44px;border-radius:14px;font-size:15px}
  .step-card{padding:18px 18px}
  .spec-row{grid-template-columns:1fr;gap:8px;padding:18px 20px}
  .faq-q{padding:18px 20px;font-size:15px}
  .faq-a p{padding:0 20px 20px}
  .cta{padding:30px 24px;flex-direction:column;align-items:flex-start;gap:24px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;align-items:flex-start;text-align:left}
  .site-footer{margin-top:64px;padding-top:52px}
}
@media (max-width:520px){
  .brand-main{font-size:18px}
  .brand-sub{font-size:9px;letter-spacing:.28em}
  .hero-actions .btn{width:100%}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
    --bg-0:#060A14; --bg-1:#0B1222; --bg-2:#121A2E;
    --glass:rgba(255,255,255,.06);
    --primary:#35E3D2; --secondary:#6C63FF; --accent:#FFB33F;
    --t1:#F2F6FF; --t2:#A9B6CE; --t3:#6B7893;
    --line:rgba(255,255,255,.08); --line-2:rgba(53,227,210,.45);
    --r-card:20px; --r-btn:12px; --r-pill:999px; --r-img:16px; --r-badge:6px;
    --sh-card:0 12px 32px rgba(0,0,0,.45);
    --sh-glow:0 0 0 1px rgba(53,227,210,.5), 0 8px 24px rgba(53,227,210,.25);
  }

  *,*::before,*::after{ box-sizing:border-box; }
  html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
  body{
    margin:0; background:var(--bg-0); color:var(--t2);
    font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px; line-height:1.78; -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  body.no-scroll{ overflow:hidden; }
  img{ max-width:100%; display:block; }
  a{ color:inherit; text-decoration:none; }
  button{ font:inherit; color:inherit; background:none; border:0; cursor:pointer; }
  input{ font:inherit; }
  ul{ margin:0; padding:0; list-style:none; }
  p{ margin:0; }
  ::selection{ background:rgba(53,227,210,.28); color:#fff; }
  :focus-visible{ outline:2px solid var(--primary); outline-offset:2px; border-radius:6px; }

  .container-x{ width:100%; max-width:1280px; margin:0 auto; padding:0 32px; }

  /* ============ 顶部导航 ============ */
  .site-header{
    position:fixed; left:0; right:0; top:0; z-index:60;
    background:linear-gradient(180deg,rgba(6,10,20,.86),rgba(6,10,20,0));
    border-bottom:1px solid transparent;
    transition:background .3s ease, border-color .3s ease, backdrop-filter .3s ease;
  }
  .site-header.is-scrolled{
    background:rgba(8,13,26,.84);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom-color:var(--line);
    box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  }
  .header-inner{ display:flex; align-items:center; gap:20px; height:72px; }

  .brand{ display:flex; flex-direction:column; gap:1px; line-height:1.1; flex:0 0 auto; }
  .brand-main{ font-size:22px; font-weight:800; color:var(--t1); letter-spacing:.04em; }
  .brand-sub{ font-size:10px; letter-spacing:.36em; color:var(--primary); }

  .nav-pills{
    display:flex; align-items:center; gap:4px; padding:5px;
    margin:0 auto; border-radius:var(--r-pill);
    background:var(--glass); border:1px solid var(--line);
    backdrop-filter:blur(12px); -webkit-backdrop-filter:blur(12px);
  }
  .nav-pill{
    position:relative; padding:9px 16px; border-radius:var(--r-pill);
    font-size:14px; color:var(--t2); white-space:nowrap;
    transition:color .18s ease, background .18s ease;
  }
  .nav-pill:hover{ color:var(--t1); background:rgba(255,255,255,.06); }
  .nav-pill.active{
    color:#04141b; font-weight:600;
    background:linear-gradient(135deg,var(--primary),var(--secondary));
  }
  .nav-pill.active::before{
    content:""; position:absolute; left:50%; top:-8px; transform:translateX(-50%);
    width:24px; height:2px; border-radius:2px; background:var(--primary);
    box-shadow:0 0 12px var(--primary);
  }

  .header-actions{ display:flex; align-items:center; gap:12px; flex:0 0 auto; }
  .search-box{
    display:flex; align-items:center; gap:8px; padding:8px 14px;
    border-radius:var(--r-pill); background:rgba(255,255,255,.05);
    border:1px solid var(--line); transition:border-color .18s ease, box-shadow .18s ease;
  }
  .search-box i{ color:var(--t3); font-size:13px; }
  .search-box input{
    width:132px; background:none; border:0; outline:none;
    color:var(--t1); font-size:13px;
  }
  .search-box input::placeholder{ color:var(--t3); }
  .search-box:focus-within{ border-color:var(--primary); box-shadow:0 0 0 3px rgba(53,227,210,.12); }

  .btn{
    display:inline-flex; align-items:center; justify-content:center; gap:8px;
    min-height:44px; padding:0 22px; border-radius:var(--r-btn);
    font-size:14px; font-weight:600; letter-spacing:.01em; cursor:pointer;
    transition:transform .16s ease-out, box-shadow .16s ease-out, background .16s ease-out, border-color .16s ease-out, color .16s ease-out;
  }
  .btn-primary{
    color:#04141b;
    background:linear-gradient(135deg,var(--primary),var(--secondary));
    box-shadow:var(--sh-glow);
  }
  .btn-primary:hover{ transform:translateY(-1px); filter:brightness(1.08); box-shadow:0 0 0 1px rgba(53,227,210,.6),0 12px 30px rgba(53,227,210,.32); }
  .btn-primary:active{ transform:translateY(0); box-shadow:0 0 0 1px rgba(53,227,210,.4),0 4px 14px rgba(53,227,210,.2); }
  .btn-ghost{
    color:var(--t1); background:transparent; border:1px solid var(--line);
  }
  .btn-ghost:hover{ border-color:var(--line-2); background:rgba(53,227,210,.06); transform:translateY(-1px); }
  .btn-sm{ min-height:40px; padding:0 18px; font-size:13px; }

  .menu-toggle{
    display:none; width:44px; height:44px; border-radius:var(--r-btn);
    border:1px solid var(--line); background:rgba(255,255,255,.04);
    flex-direction:column; align-items:center; justify-content:center; gap:5px;
  }
  .menu-toggle span{ width:18px; height:2px; border-radius:2px; background:var(--t1); transition:transform .2s ease, opacity .2s ease; }
  .menu-toggle.is-open span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
  .menu-toggle.is-open span:nth-child(2){ opacity:0; }
  .menu-toggle.is-open span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

  .drawer{
    position:fixed; inset:0; z-index:55; display:flex; flex-direction:column;
    padding:96px 24px 32px; background:rgba(6,10,20,.98);
    backdrop-filter:blur(12px); -webkit-backdrop-filter:blur(12px);
    transform:translateX(100%); visibility:hidden;
    transition:transform .3s ease, visibility .3s ease;
  }
  .drawer.open{ transform:translateX(0); visibility:visible; }
  .drawer-link{
    display:flex; align-items:center; justify-content:space-between;
    padding:18px 4px; font-size:16px; color:var(--t2);
    border-bottom:1px solid var(--line); min-height:56px;
  }
  .drawer-link.active{ color:var(--primary); font-weight:600; }
  .drawer-link i{ color:var(--t3); font-size:13px; }
  .drawer-cta{ margin-top:auto; }

  /* ============ 分类头区 ============ */
  .page-hero{ position:relative; padding:150px 0 76px; overflow:hidden; }
  .page-hero::before{
    content:""; position:absolute; inset:0;
    background:url(/assets/images/backpic/back-2.png) center/cover no-repeat;
    opacity:.34;
  }
  .page-hero::after{
    content:""; position:absolute; inset:0;
    background:
      radial-gradient(720px 380px at 12% 88%, rgba(53,227,210,.20), transparent 62%),
      linear-gradient(180deg, rgba(6,10,20,.62) 0%, rgba(6,10,20,.9) 58%, var(--bg-0) 100%);
  }
  .page-hero .hero-inner{ position:relative; z-index:1; display:grid; grid-template-columns:minmax(0,1.55fr) minmax(0,1fr); gap:44px; align-items:center; }

  .eyebrow{
    display:inline-flex; align-items:center; gap:8px;
    padding:7px 14px; border-radius:var(--r-pill);
    background:rgba(53,227,210,.10); border:1px solid rgba(53,227,210,.28);
    color:var(--primary); font-size:12.5px; letter-spacing:.08em;
  }
  .page-title{
    margin:20px 0 0; font-size:44px; line-height:1.2; font-weight:700;
    letter-spacing:-.01em; color:var(--t1);
    text-shadow:0 6px 28px rgba(0,0,0,.55);
  }
  .page-title em{ font-style:normal; background:linear-gradient(120deg,var(--primary),var(--secondary)); -webkit-background-clip:text; background-clip:text; color:transparent; }
  .page-lead{ margin-top:18px; max-width:620px; font-size:16.5px; color:var(--t2); }
  .hero-actions{ display:flex; flex-wrap:wrap; gap:14px; margin-top:28px; }

  .hero-tags{ display:flex; flex-wrap:wrap; gap:10px; margin-top:26px; }
  .hero-tag{
    padding:8px 15px; border-radius:var(--r-pill); font-size:13px; color:var(--t2);
    background:var(--glass); border:1px solid var(--line);
    backdrop-filter:blur(10px); -webkit-backdrop-filter:blur(10px);
  }
  .hero-tag i{ color:var(--primary); margin-right:6px; font-size:12px; }

  .hero-visual{
    position:relative; border-radius:var(--r-img); overflow:hidden;
    border:1px solid var(--line); box-shadow:var(--sh-card);
  }
  .hero-visual img{ width:100%; aspect-ratio:4/3; object-fit:cover; }
  .hero-visual::after{
    content:""; position:absolute; inset:0;
    background:linear-gradient(180deg,rgba(6,10,20,.14),rgba(6,10,20,.72));
  }
  .hero-visual .visual-cap{
    position:absolute; left:18px; right:18px; bottom:16px; z-index:1;
    font-size:13.5px; color:var(--t1);
  }
  .hero-visual .visual-cap strong{ display:block; font-size:15px; margin-bottom:2px; }
  .hero-visual .visual-cap span{ color:var(--t2); font-size:12.5px; }

  .wave-divider{ position:relative; z-index:1; margin-top:44px; opacity:.6; }
  .wave-divider svg{ width:100%; height:34px; display:block; }

  /* ============ 筛选胶囊条 ============ */
  .chip-bar{
    display:flex; flex-wrap:wrap; gap:10px;
    padding:26px 0 8px; border-bottom:1px solid var(--line);
  }
  .chip{
    padding:9px 18px; border-radius:var(--r-pill); font-size:13.5px; color:var(--t2);
    background:rgba(255,255,255,.03); border:1px solid var(--line);
    transition:color .18s ease, border-color .18s ease, background .18s ease, transform .18s ease;
  }
  .chip:hover{ color:var(--t1); border-color:var(--line-2); transform:translateY(-1px); }
  .chip.active{
    color:var(--t1); font-weight:600;
    background:linear-gradient(135deg,rgba(53,227,210,.18),rgba(108,99,255,.18));
    border-color:var(--line-2);
  }

  /* ============ 板块通用 ============ */
  .section{ padding:84px 0; }
  .section-tight{ padding:64px 0; }
  .section-head{ max-width:760px; margin-bottom:40px; }
  .section-kicker{
    display:inline-block; font-size:12.5px; letter-spacing:.18em;
    color:var(--primary); margin-bottom:12px;
  }
  .section-title{ font-size:30px; line-height:1.3; color:var(--t1); font-weight:700; letter-spacing:-.01em; }
  .section-desc{ margin-top:14px; font-size:15.5px; color:var(--t2); max-width:700px; }

  /* ============ 主体两栏 ============ */
  .content-grid{
    display:grid; grid-template-columns:minmax(0,2.05fr) minmax(0,1fr);
    gap:32px; align-items:start;
  }
  .card-grid{ display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:24px; }

  .safety-card{
    display:flex; flex-direction:column; overflow:hidden;
    background:var(--bg-2); border:1px solid var(--line);
    border-radius:var(--r-card); box-shadow:var(--sh-card);
    transition:transform .22s ease, border-color .22s ease, box-shadow .22s ease;
  }
  .safety-card:hover{ transform:translateY(-4px); border-color:var(--line-2); box-shadow:0 18px 40px rgba(0,0,0,.5); }
  .safety-card .thumb{ margin:0; overflow:hidden; position:relative; }
  .safety-card .thumb img{ width:100%; aspect-ratio:16/9; object-fit:cover; transition:transform .45s ease; }
  .safety-card:hover .thumb img{ transform:scale(1.04); }
  .safety-card .thumb .corner{
    position:absolute; right:0; top:0; width:0; height:0;
    border-style:solid; border-width:0 26px 26px 0;
    border-color:transparent rgba(53,227,210,.65) transparent transparent;
  }
  .safety-card .card-body{ padding:22px 22px 24px; display:flex; flex-direction:column; gap:12px; flex:1; }
  .card-title{ font-size:17.5px; line-height:1.55; color:var(--t1); font-weight:600; }
  .card-text{ font-size:14.5px; color:var(--t2); }
  .mini-list{ display:flex; flex-direction:column; gap:9px; margin-top:2px; }
  .mini-list li{ position:relative; padding-left:20px; font-size:13.8px; color:var(--t3); }
  .mini-list li::before{
    content:""; position:absolute; left:0; top:8px; width:7px; height:7px;
    border-radius:2px; background:linear-gradient(135deg,var(--primary),var(--secondary));
  }
  .card-foot{ margin-top:auto; padding-top:12px; border-top:1px solid var(--line); }
  .text-link{ color:var(--primary); font-size:13.5px; font-weight:600; text-decoration:underline; text-underline-offset:4px; }
  .text-link:hover{ filter:brightness(1.12); text-decoration-thickness:2px; }

  /* ============ 粘性要点清单 ============ */
  .checklist{
    position:sticky; top:96px;
    padding:26px 24px; border-radius:var(--r-card);
    background:var(--glass); border:1px solid var(--line);
    backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px);
    box-shadow:var(--sh-card);
  }
  .checklist h3{ font-size:18px; color:var(--t1); font-weight:700; }
  .checklist .cl-sub{ margin-top:8px; font-size:13.5px; color:var(--t3); }
  .checklist ol{ margin-top:20px; display:flex; flex-direction:column; gap:14px; }
  .checklist li{ display:flex; gap:12px; font-size:14px; color:var(--t2); }
  .cl-num{
    flex:0 0 auto; width:26px; height:26px; border-radius:8px;
    display:flex; align-items:center; justify-content:center;
    font-size:12.5px; font-weight:700; color:#04141b;
    background:linear-gradient(135deg,var(--primary),var(--secondary));
  }
  .checklist .cl-foot{ margin-top:22px; padding-top:18px; border-top:1px solid var(--line); }
  .cl-note{
    display:flex; gap:10px; font-size:13px; color:var(--t3);
    padding:12px 14px; border-radius:var(--r-btn);
    background:rgba(255,179,63,.07); border:1px solid rgba(255,179,63,.24);
  }
  .cl-note i{ color:var(--accent); margin-top:3px; }

  /* ============ 处理顺序 ============ */
  .flow-grid{ display:grid; grid-template-columns:repeat(5,minmax(0,1fr)); gap:18px; }
  .flow-card{
    position:relative; padding:26px 20px 24px; border-radius:var(--r-card);
    background:var(--bg-1); border:1px solid var(--line);
    transition:transform .2s ease, border-color .2s ease, background .2s ease;
  }
  .flow-card:hover{ transform:translateY(-4px); border-color:var(--line-2); background:var(--bg-2); }
  .flow-step{
    display:inline-flex; align-items:center; gap:8px;
    font-size:12px; letter-spacing:.14em; color:var(--primary); margin-bottom:14px;
  }
  .flow-step b{
    display:inline-flex; align-items:center; justify-content:center;
    width:24px; height:24px; border-radius:7px; font-size:12px;
    color:#04141b; background:var(--primary);
  }
  .flow-card h3{ font-size:16px; color:var(--t1); font-weight:600; line-height:1.5; }
  .flow-card p{ margin-top:10px; font-size:13.6px; color:var(--t3); }

  /* ============ FAQ ============ */
  .faq-wrap{
    padding:8px 26px; border-radius:var(--r-card);
    background:var(--glass); border:1px solid var(--line);
    backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px);
    box-shadow:var(--sh-card);
  }
  .faq-item{ border-bottom:1px solid var(--line); }
  .faq-item:last-child{ border-bottom:0; }
  .faq-item summary{
    list-style:none; cursor:pointer; padding:22px 40px 22px 0; position:relative;
    color:var(--t1); font-size:16px; font-weight:600; line-height:1.6;
    transition:color .18s ease;
  }
  .faq-item summary::-webkit-details-marker{ display:none; }
  .faq-item summary:hover{ color:var(--primary); }
  .faq-item summary::after{
    content:"+"; position:absolute; right:4px; top:50%; transform:translateY(-50%);
    font-size:22px; font-weight:400; color:var(--primary); line-height:1;
    transition:transform .25s ease;
  }
  .faq-item[open] summary::after{ transform:translateY(-50%) rotate(45deg); }
  .faq-body{ padding:0 40px 24px 0; font-size:14.8px; color:var(--t2); }
  .faq-body p + p{ margin-top:10px; }

  /* ============ CTA ============ */
  .cta-band{
    position:relative; overflow:hidden;
    border-radius:var(--r-card); padding:42px 44px;
    background:linear-gradient(120deg,rgba(53,227,210,.14),rgba(108,99,255,.16));
    border:1px solid var(--line);
    backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px);
    display:flex; align-items:center; justify-content:space-between; gap:32px;
    box-shadow:var(--sh-card);
  }
  .cta-band::before{
    content:""; position:absolute; left:0; right:0; top:0; height:1px;
    background:linear-gradient(90deg,transparent,rgba(53,227,210,.9),transparent);
  }
  .cta-band h2{ font-size:24px; color:var(--t1); font-weight:700; line-height:1.4; }
  .cta-band p{ margin-top:10px; font-size:14.5px; color:var(--t2); max-width:640px; }
  .cta-actions{ display:flex; gap:12px; flex:0 0 auto; }

  /* ============ 页脚 ============ */
  .site-footer{
    margin-top:96px; padding:64px 0 28px;
    background:var(--bg-1); border-top:1px solid var(--line);
  }
  .footer-grid{
    display:grid; grid-template-columns:1.5fr 1fr 1fr 1fr; gap:40px;
  }
  .footer-brand .brand{ margin-bottom:16px; }
  .footer-brand p{ font-size:13.6px; color:var(--t3); max-width:330px; }
  .footer-col h3{ font-size:14px; color:var(--t1); font-weight:600; margin-bottom:16px; letter-spacing:.04em; }
  .footer-col ul{ display:flex; flex-direction:column; gap:11px; }
  .footer-col a{ font-size:13.6px; color:var(--t3); transition:color .18s ease; }
  .footer-col a:hover{ color:var(--primary); }
  .footer-bottom{
    margin-top:48px; padding-top:22px; border-top:1px solid var(--line);
    display:flex; flex-wrap:wrap; gap:10px 24px; justify-content:space-between;
    font-size:12.8px; color:var(--t3);
  }

  /* ============ 响应式 ============ */
  @media (max-width:1280px){
    .page-title{ font-size:40px; }
  }
  @media (max-width:1024px){
    .container-x{ padding:0 24px; }
    .nav-pills{ display:none; }
    .search-box{ display:none; }
    .menu-toggle{ display:flex; }
    .header-actions{ margin-left:auto; }
    .page-hero{ padding:130px 0 64px; }
    .page-hero .hero-inner{ grid-template-columns:1fr; gap:32px; }
    .hero-visual{ max-width:520px; }
    .content-grid{ grid-template-columns:1fr; }
    .checklist{ position:static; order:-1; }
    .flow-grid{ grid-template-columns:repeat(3,minmax(0,1fr)); }
    .footer-grid{ grid-template-columns:1fr 1fr; gap:32px; }
  }
  @media (max-width:768px){
    .header-inner{ height:64px; }
    .brand-main{ font-size:20px; }
    .brand-sub{ font-size:9px; letter-spacing:.3em; }
    .page-hero{ padding:112px 0 52px; }
    .page-title{ font-size:32px; }
    .page-lead{ font-size:15.5px; }
    .section{ padding:60px 0; }
    .section-title{ font-size:24px; }
    .card-grid{ grid-template-columns:1fr; }
    .flow-grid{ grid-template-columns:1fr 1fr; }
    .cta-band{ flex-direction:column; align-items:flex-start; padding:30px 24px; gap:22px; }
    .cta-actions{ width:100%; }
    .cta-actions .btn{ flex:1; }
    .faq-wrap{ padding:4px 20px; }
    .faq-body{ padding-right:0; }
  }
  @media (max-width:520px){
    .container-x{ padding:0 18px; }
    .page-title{ font-size:28px; }
    .flow-grid{ grid-template-columns:1fr; }
    .footer-grid{ grid-template-columns:1fr; }
    .hero-actions .btn{ width:100%; }
    .chip{ padding:8px 14px; font-size:13px; }
  }
  @media (prefers-reduced-motion:reduce){
    *{ transition:none !important; animation:none !important; scroll-behavior:auto !important; }
  }

/* roulang page: category3 */
:root{
    --bg-0:#060A14;
    --bg-1:#0B1222;
    --bg-2:#121A2E;
    --glass:rgba(255,255,255,.06);
    --primary:#35E3D2;
    --secondary:#6C63FF;
    --accent:#FFB33F;
    --t1:#F2F6FF;
    --t2:#A9B6CE;
    --t3:#6B7893;
    --line:rgba(255,255,255,.08);
    --line-hover:rgba(53,227,210,.45);
    --r-card:20px;
    --r-btn:12px;
    --r-pill:999px;
    --r-img:16px;
    --r-badge:6px;
    --shadow-card:0 12px 32px rgba(0,0,0,.45);
    --glow:0 0 0 1px rgba(53,227,210,.5), 0 8px 24px rgba(53,227,210,.25);
    --glow-strong:0 0 0 1px rgba(53,227,210,.65), 0 12px 34px rgba(53,227,210,.34);
    --container:1280px;
    --gutter:32px;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--bg-0);
    color:var(--t2);
    font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;
    line-height:1.75;
    letter-spacing:.01em;
    overflow-x:hidden;
  }
  body::before{
    content:"";
    position:fixed;
    inset:0;
    pointer-events:none;
    background:
      radial-gradient(760px 420px at 12% -6%, rgba(53,227,210,.10), transparent 62%),
      radial-gradient(620px 380px at 92% 4%, rgba(108,99,255,.12), transparent 66%);
    z-index:0;
  }
  h1,h2,h3,h4{margin:0;color:var(--t1);font-weight:700;letter-spacing:-.01em;line-height:1.3}
  p{margin:0}
  a{color:inherit;text-decoration:none;transition:color .18s ease, border-color .18s ease, background-color .18s ease}
  img{max-width:100%;display:block;border-style:none}
  ul{margin:0;padding:0;list-style:none}
  button,input{font:inherit;color:inherit}
  button{cursor:pointer;background:none;border:0}
  input{background:none;border:0;outline:none}
  :focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
  ::selection{background:rgba(53,227,210,.28);color:#fff}
  .container{
    position:relative;
    z-index:1;
    width:100%;
    max-width:var(--container);
    margin:0 auto;
    padding-left:var(--gutter);
    padding-right:var(--gutter);
  }
  .no-scroll{overflow:hidden}

  /* ---------- header ---------- */
  .site-header{
    position:fixed;
    top:0;left:0;right:0;
    z-index:80;
    transition:background-color .3s ease, box-shadow .3s ease, border-color .3s ease, backdrop-filter .3s ease;
    border-bottom:1px solid transparent;
    background:linear-gradient(180deg, rgba(6,10,20,.72), rgba(6,10,20,0));
  }
  .site-header.is-scrolled{
    background:rgba(8,13,26,.86);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom-color:var(--line);
    box-shadow:inset 0 1px 0 rgba(255,255,255,.06), 0 10px 30px rgba(0,0,0,.4);
  }
  .header-inner{
    display:flex;
    align-items:center;
    gap:22px;
    min-height:76px;
  }
  .brand{display:flex;flex-direction:column;line-height:1.1;flex-shrink:0}
  .brand-main{
    font-size:22px;
    font-weight:800;
    color:var(--t1);
    letter-spacing:.02em;
  }
  .brand-sub{
    font-size:11px;
    letter-spacing:.34em;
    color:var(--primary);
    margin-top:3px;
    font-weight:500;
  }
  .nav-pills{
    display:flex;
    align-items:center;
    gap:4px;
    margin-left:auto;
    padding:5px;
    border-radius:var(--r-pill);
    background:rgba(255,255,255,.04);
    border:1px solid var(--line);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
  }
  .nav-pill{
    position:relative;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    min-height:40px;
    padding:0 16px;
    border-radius:var(--r-pill);
    font-size:14.5px;
    color:var(--t2);
    white-space:nowrap;
  }
  .nav-pill::after{
    content:"";
    position:absolute;
    top:2px;left:50%;
    width:0;height:2px;
    border-radius:2px;
    transform:translateX(-50%);
    background:var(--primary);
    box-shadow:0 0 10px rgba(53,227,210,.9);
    transition:width .22s ease;
  }
  .nav-pill:hover{color:var(--t1);background:rgba(255,255,255,.06)}
  .nav-pill.active{
    color:#04140F;
    background:linear-gradient(135deg, var(--primary), #8ff0e6);
    font-weight:600;
  }
  .nav-pill.active::after{width:22px}
  .header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
  .search-box{
    display:flex;
    align-items:center;
    gap:9px;
    min-height:42px;
    padding:0 14px;
    border-radius:var(--r-pill);
    background:rgba(255,255,255,.04);
    border:1px solid var(--line);
    transition:border-color .2s ease, box-shadow .2s ease;
  }
  .search-box:focus-within{
    border-color:var(--line-hover);
    box-shadow:inset 0 0 0 1px rgba(53,227,210,.28), 0 0 18px rgba(53,227,210,.16);
  }
  .search-box i{color:var(--t3);font-size:13px}
  .search-box input{width:170px;font-size:14px;color:var(--t1)}
  .search-box input::placeholder{color:var(--t3)}
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    min-height:46px;
    padding:0 22px;
    border-radius:var(--r-btn);
    font-size:15px;
    font-weight:600;
    transition:transform .16s ease-out, box-shadow .16s ease-out, background-color .16s ease-out, border-color .16s ease-out, color .16s ease-out;
  }
  .btn-sm{min-height:42px;padding:0 18px;font-size:14px}
  .btn-primary{
    color:#04140F;
    background:linear-gradient(135deg,#35E3D2 0%,#6C63FF 135%);
    box-shadow:var(--glow);
  }
  .btn-primary:hover{transform:translateY(-1px);box-shadow:var(--glow-strong);filter:brightness(1.06)}
  .btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(53,227,210,.45),0 4px 14px rgba(53,227,210,.2)}
  .btn-ghost{
    color:var(--t1);
    border:1px solid var(--line);
    background:rgba(255,255,255,.02);
  }
  .btn-ghost:hover{border-color:var(--line-hover);background:rgba(53,227,210,.08);transform:translateY(-1px)}
  .btn-ghost:active{transform:translateY(1px)}
  .menu-toggle{
    display:none;
    width:46px;height:46px;
    border-radius:12px;
    border:1px solid var(--line);
    background:rgba(255,255,255,.03);
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:5px;
  }
  .menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--t1);transition:transform .25s ease, opacity .25s ease}
  .menu-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .menu-toggle.is-open span:nth-child(2){opacity:0}
  .menu-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .mobile-drawer{
    display:none;
    position:fixed;
    inset:76px 0 0 0;
    z-index:79;
    background:rgba(6,10,20,.97);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    padding:22px 20px 32px;
    flex-direction:column;
    gap:8px;
    opacity:0;
    pointer-events:none;
    transform:translateY(-8px);
    transition:opacity .24s ease, transform .24s ease;
  }
  .mobile-drawer.is-open{opacity:1;pointer-events:auto;transform:translateY(0)}
  .drawer-link{
    display:flex;
    align-items:center;
    justify-content:space-between;
    min-height:56px;
    padding:0 6px;
    border-bottom:1px solid var(--line);
    color:var(--t1);
    font-size:16px;
    font-weight:500;
  }
  .drawer-link.active{color:var(--primary)}
  .drawer-link i{color:var(--t3);font-size:13px}
  .drawer-cta{margin-top:18px}
  .drawer-note{margin-top:14px;font-size:13px;color:var(--t3);line-height:1.7}

  /* ---------- hero ---------- */
  .cat-hero{
    position:relative;
    padding:158px 0 74px;
    overflow:hidden;
    background-image:linear-gradient(90deg, rgba(6,10,20,.96) 0%, rgba(6,10,20,.78) 45%, rgba(6,10,20,.5) 100%), url('/assets/images/backpic/back-1.png');
    background-size:cover;
    background-position:center;
    border-bottom:1px solid var(--line);
  }
  .cat-hero::after{
    content:"";
    position:absolute;
    left:0;right:0;bottom:0;
    height:140px;
    background:linear-gradient(180deg, rgba(6,10,20,0), var(--bg-0));
    pointer-events:none;
  }
  .cat-hero-inner{
    position:relative;
    z-index:2;
    display:grid;
    grid-template-columns:minmax(0,1.35fr) minmax(0,.95fr);
    gap:48px;
    align-items:center;
  }
  .crumb{display:flex;align-items:center;gap:9px;font-size:13.5px;color:var(--t3);margin-bottom:20px}
  .crumb a:hover{color:var(--primary)}
  .crumb i{font-size:10px}
  .hero-eyebrow{
    display:inline-flex;
    align-items:center;
    gap:9px;
    padding:7px 15px;
    border-radius:var(--r-pill);
    border:1px solid rgba(53,227,210,.32);
    background:rgba(53,227,210,.08);
    color:var(--primary);
    font-size:13px;
    margin-bottom:22px;
  }
  .hero-eyebrow i{font-size:12px}
  .cat-hero h1{
    font-size:48px;
    line-height:1.16;
    letter-spacing:-.02em;
    max-width:660px;
  }
  .cat-hero h1 em{
    font-style:normal;
    background:linear-gradient(120deg,#35E3D2,#8ff0e6 45%,#6C63FF);
    -webkit-background-clip:text;
    background-clip:text;
    color:transparent;
  }
  .hero-lead{
    margin-top:20px;
    font-size:17px;
    line-height:1.85;
    color:var(--t2);
    max-width:620px;
  }
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
  .hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
  .tag-chip{
    display:inline-flex;
    align-items:center;
    gap:7px;
    padding:8px 14px;
    border-radius:var(--r-pill);
    border:1px solid var(--line);
    background:rgba(255,255,255,.05);
    backdrop-filter:blur(10px);
    -webkit-backdrop-filter:blur(10px);
    font-size:13px;
    color:var(--t2);
  }
  .tag-chip i{color:var(--primary);font-size:11px}
  .hero-panel{
    position:relative;
    padding:24px;
    border-radius:var(--r-card);
    border:1px solid var(--line);
    background:rgba(255,255,255,.06);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    box-shadow:var(--shadow-card), inset 0 1px 0 rgba(255,255,255,.08);
  }
  .hero-panel::before{
    content:"";
    position:absolute;
    top:0;right:0;
    width:56px;height:2px;
    border-radius:2px;
    background:linear-gradient(90deg, rgba(53,227,210,0), var(--primary));
  }
  .hero-panel h3{font-size:16px;margin-bottom:16px;display:flex;align-items:center;gap:9px}
  .hero-panel h3 i{color:var(--accent);font-size:14px}
  .hero-figure{
    border-radius:var(--r-img);
    overflow:hidden;
    border:1px solid var(--line);
    margin-bottom:18px;
  }
  .hero-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
  .brief-list li{
    display:flex;
    gap:11px;
    padding:11px 0;
    border-bottom:1px dashed rgba(255,255,255,.09);
    font-size:14px;
    color:var(--t2);
  }
  .brief-list li:last-child{border-bottom:0;padding-bottom:0}
  .brief-list i{color:var(--primary);font-size:12px;margin-top:6px}

  /* ---------- filter strip ---------- */
  .filter-strip{
    padding:26px 0;
    border-bottom:1px solid var(--line);
    background:var(--bg-1);
  }
  .filter-row{
    display:flex;
    align-items:center;
    gap:12px;
    overflow-x:auto;
    scrollbar-width:none;
    -ms-overflow-style:none;
    padding-bottom:2px;
  }
  .filter-row::-webkit-scrollbar{display:none}
  .filter-row .label{
    font-size:13px;
    color:var(--t3);
    flex-shrink:0;
    letter-spacing:.08em;
  }
  .filter-btn{
    display:inline-flex;
    align-items:center;
    gap:8px;
    min-height:44px;
    padding:0 18px;
    border-radius:var(--r-pill);
    border:1px solid var(--line);
    background:rgba(255,255,255,.03);
    color:var(--t2);
    font-size:14px;
    white-space:nowrap;
    flex-shrink:0;
  }
  .filter-btn i{font-size:12px;color:var(--t3)}
  .filter-btn:hover{border-color:var(--line-hover);color:var(--t1);background:rgba(53,227,210,.07)}
  .filter-btn.on{
    color:#04140F;
    font-weight:600;
    background:linear-gradient(135deg,#35E3D2,#6C63FF);
    border-color:transparent;
    box-shadow:0 8px 22px rgba(53,227,210,.22);
  }
  .filter-btn.on i{color:#04140F}

  /* ---------- generic section ---------- */
  .section{padding:96px 0}
  .section-tight{padding:72px 0}
  .section-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:24px;
    margin-bottom:38px;
  }
  .section-head h2{font-size:28px;line-height:1.35}
  .section-head .sub{margin-top:11px;font-size:15px;color:var(--t2);max-width:640px}
  .more-link{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:14.5px;
    color:var(--primary);
    border-bottom:1px solid rgba(53,227,210,.4);
    padding-bottom:3px;
    white-space:nowrap;
  }
  .more-link:hover{color:#8ff0e6;border-bottom-color:#8ff0e6}
  .kicker{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    letter-spacing:.16em;
    color:var(--primary);
    margin-bottom:14px;
  }
  .kicker::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--primary);box-shadow:0 0 10px rgba(53,227,210,.8)}

  /* ---------- rail ---------- */
  .rail-wrap{position:relative}
  .rail{
    display:flex;
    gap:22px;
    overflow-x:auto;
    scroll-snap-type:x mandatory;
    scrollbar-width:none;
    -ms-overflow-style:none;
    padding:6px 0 14px;
    scroll-padding-left:4px;
  }
  .rail::-webkit-scrollbar{display:none}
  .rail-card{
    flex:0 0 auto;
    width:calc((100% - 66px) / 4.5);
    min-width:250px;
    scroll-snap-align:start;
  }
  .rail-wrap::after{
    content:"";
    position:absolute;
    top:0;right:-32px;bottom:14px;
    width:96px;
    background:linear-gradient(90deg, rgba(6,10,20,0), var(--bg-0));
    pointer-events:none;
  }
  .poster{
    position:relative;
    border-radius:var(--r-img);
    overflow:hidden;
    border:1px solid var(--line);
    background:var(--bg-2);
    transition:transform .22s ease, border-color .22s ease, box-shadow .22s ease;
  }
  .poster img{width:100%;aspect-ratio:3/4;object-fit:cover;transition:transform .35s ease}
  .poster:hover{transform:translateY(-4px);border-color:var(--line-hover);box-shadow:var(--shadow-card)}
  .poster:hover img{transform:scale(1.04)}
  .poster-badge{
    position:absolute;
    top:12px;left:12px;
    padding:5px 10px;
    border-radius:var(--r-badge);
    font-size:12px;
    color:var(--t1);
    background:rgba(6,10,20,.72);
    border:1px solid rgba(53,227,210,.4);
    backdrop-filter:blur(8px);
    -webkit-backdrop-filter:blur(8px);
  }
  .poster-step{
    position:absolute;
    right:12px;bottom:12px;
    padding:4px 10px;
    border-radius:var(--r-badge);
    font-size:12px;
    color:#04140F;
    font-weight:600;
    background:linear-gradient(135deg,#FFB33F,#ffe0ab);
  }
  .rail-card h3{
    margin-top:14px;
    font-size:15.5px;
    font-weight:600;
    line-height:1.55;
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden;
  }
  .rail-card .meta{margin-top:8px;font-size:13px;color:var(--t3);display:flex;align-items:center;gap:8px}
  .rail-card .meta i{font-size:11px}

  /* ---------- news grid ---------- */
  .news-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
  .news-card{
    position:relative;
    display:flex;
    gap:18px;
    padding:22px;
    border-radius:var(--r-card);
    border:1px solid var(--line);
    background:var(--bg-2);
    box-shadow:var(--shadow-card);
    overflow:hidden;
    transition:border-color .2s ease, transform .2s ease, box-shadow .2s ease;
  }
  .news-card::before{
    content:"";
    position:absolute;
    left:0;top:26px;bottom:26px;
    width:2px;
    border-radius:2px;
    background:var(--primary);
    opacity:0;
    transition:opacity .2s ease;
  }
  .news-card:hover{border-color:var(--line-hover);transform:translateY(-3px)}
  .news-card:hover::before{opacity:1}
  .news-thumb{
    flex:0 0 132px;
    border-radius:12px;
    overflow:hidden;
    border:1px solid var(--line);
    align-self:flex-start;
  }
  .news-thumb img{width:100%;aspect-ratio:4/3;object-fit:cover}
  .news-body{min-width:0}
  .news-cat{
    display:inline-flex;
    align-items:center;
    gap:7px;
    padding:4px 11px;
    border-radius:var(--r-pill);
    border:1px solid rgba(53,227,210,.42);
    color:var(--primary);
    background:rgba(53,227,210,.06);
    font-size:12.5px;
    margin-bottom:12px;
  }
  .news-body h3{
    font-size:17px;
    font-weight:600;
    line-height:1.55;
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden;
  }
  .news-body p{
    margin-top:10px;
    font-size:14px;
    line-height:1.8;
    color:var(--t2);
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden;
  }
  .news-foot{
    margin-top:14px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    font-size:13px;
    color:var(--t3);
  }
  .news-foot .go{color:var(--primary);font-size:13px;display:inline-flex;align-items:center;gap:6px}
  .news-card:hover .go{color:#8ff0e6}

  /* ---------- stats ---------- */
  .stats-band{
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    background:linear-gradient(180deg, var(--bg-1), var(--bg-0));
  }
  .stats-grid{
    display:grid;
    grid-template-columns:repeat(4,minmax(0,1fr));
    gap:1px;
    background:var(--line);
    border-radius:var(--r-card);
    overflow:hidden;
    border:1px solid var(--line);
  }
  .stat{
    padding:30px 26px;
    background:var(--bg-1);
  }
  .stat .num{
    font-family:Inter,system-ui,sans-serif;
    font-size:34px;
    font-weight:700;
    color:var(--t1);
    letter-spacing:-.02em;
    display:flex;
    align-items:baseline;
    gap:6px;
  }
  .stat .num span{font-size:15px;color:var(--primary);font-weight:600}
  .stat p{margin-top:10px;font-size:14px;color:var(--t2);line-height:1.7}
  .stat i{color:var(--primary);font-size:14px;margin-bottom:14px;display:block}

  /* ---------- timeline ---------- */
  .cycle-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;position:relative}
  .cycle-grid::before{
    content:"";
    position:absolute;
    left:22px;right:22px;top:22px;
    height:1px;
    background:linear-gradient(90deg, rgba(53,227,210,.55), rgba(108,99,255,.35), rgba(53,227,210,.1));
  }
  .cycle-item{position:relative;padding-top:56px}
  .cycle-dot{
    position:absolute;
    top:14px;left:0;
    width:18px;height:18px;
    border-radius:50%;
    background:var(--bg-0);
    border:2px solid var(--primary);
    box-shadow:0 0 0 4px rgba(53,227,210,.12), 0 0 16px rgba(53,227,210,.5);
  }
  .cycle-item h3{font-size:16.5px;font-weight:600}
  .cycle-item .time{margin-top:8px;font-size:13px;color:var(--accent);font-family:Inter,system-ui,sans-serif}
  .cycle-item p{margin-top:10px;font-size:14px;line-height:1.8;color:var(--t2)}

  /* ---------- split feature ---------- */
  .split{
    display:grid;
    grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
    gap:48px;
    align-items:center;
  }
  .split-visual{
    border-radius:var(--r-card);
    overflow:hidden;
    border:1px solid var(--line);
    box-shadow:var(--shadow-card);
    position:relative;
  }
  .split-visual img{width:100%;aspect-ratio:16/10;object-fit:cover}
  .split-visual .overlay{
    position:absolute;
    inset:auto 0 0 0;
    padding:22px;
    background:linear-gradient(180deg, rgba(6,10,20,0), rgba(6,10,20,.88));
  }
  .split-visual .overlay strong{display:block;color:var(--t1);font-size:16px;font-weight:600}
  .split-visual .overlay span{font-size:13px;color:var(--t2)}
  .check-list li{
    display:flex;
    gap:13px;
    padding:14px 0;
    border-bottom:1px solid rgba(255,255,255,.07);
    font-size:15px;
    color:var(--t2);
  }
  .check-list li:last-child{border-bottom:0}
  .check-list i{color:var(--primary);font-size:13px;margin-top:6px}

  /* ---------- faq ---------- */
  .faq-shell{
    border-radius:var(--r-card);
    border:1px solid var(--line);
    background:rgba(255,255,255,.05);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    box-shadow:var(--shadow-card), inset 0 1px 0 rgba(255,255,255,.08);
    overflow:hidden;
  }
  .faq-item + .faq-item{border-top:1px solid var(--line)}
  .faq-q{
    width:100%;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:18px;
    min-height:66px;
    padding:20px 24px;
    text-align:left;
    font-size:16px;
    font-weight:600;
    color:var(--t1);
  }
  .faq-q:hover{color:#8ff0e6}
  .faq-q .plus{
    flex:0 0 26px;
    width:26px;height:26px;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    border-radius:50%;
    border:1px solid var(--line);
    color:var(--primary);
    font-size:12px;
    transition:transform .28s ease, border-color .28s ease;
  }
  .faq-item.is-open .faq-q .plus{transform:rotate(45deg);border-color:var(--line-hover)}
  .faq-a{
    max-height:0;
    overflow:hidden;
    transition:max-height .34s ease;
  }
  .faq-item.is-open .faq-a{max-height:340px}
  .faq-a p{
    padding:0 24px 22px;
    font-size:14.5px;
    line-height:1.85;
    color:var(--t2);
  }

  /* ---------- cta ---------- */
  .cta-band{
    position:relative;
    padding:40px;
    border-radius:var(--r-card);
    border:1px solid var(--line);
    background:rgba(255,255,255,.06);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    box-shadow:var(--shadow-card), inset 0 1px 0 rgba(255,255,255,.08);
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:32px;
  }
  .cta-band::before{
    content:"";
    position:absolute;
    top:0;left:24px;right:24px;
    height:1px;
    background:linear-gradient(90deg, rgba(53,227,210,0), rgba(53,227,210,.85), rgba(108,99,255,0));
  }
  .cta-band h2{font-size:26px}
  .cta-band p{margin-top:12px;font-size:15px;color:var(--t2);max-width:640px}
  .cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex-shrink:0}

  /* ---------- footer ---------- */
  .site-footer{
    margin-top:96px;
    border-top:1px solid var(--line);
    background:var(--bg-1);
    padding:64px 0 28px;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.5fr 1fr 1fr 1fr;
    gap:40px;
  }
  .footer-brand .brand{margin-bottom:18px}
  .footer-brand p{font-size:14px;line-height:1.85;color:var(--t2);max-width:340px}
  .footer-col h3{
    font-size:15px;
    font-weight:600;
    margin-bottom:18px;
    color:var(--t1);
  }
  .footer-col li{margin-bottom:12px}
  .footer-col a{font-size:14px;color:var(--t2)}
  .footer-col a:hover{color:var(--primary)}
  .footer-bottom{
    margin-top:46px;
    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(--t3);
  }

  /* ---------- responsive ---------- */
  @media (max-width:1180px){
    .nav-pill{padding:0 12px;font-size:13.8px}
    .search-box input{width:120px}
    .rail-card{width:calc((100% - 44px) / 3.2)}
  }
  @media (max-width:1024px){
    :root{--gutter:26px}
    .section{padding:76px 0}
    .cat-hero{padding:140px 0 62px}
    .cat-hero h1{font-size:40px}
    .cat-hero-inner{grid-template-columns:1fr;gap:36px}
    .nav-pills{display:none}
    .menu-toggle{display:flex}
    .mobile-drawer{display:flex}
    .search-box{display:none}
    .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .cycle-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
    .cycle-grid::before{display:none}
    .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
    .split{grid-template-columns:1fr;gap:32px}
  }
  @media (max-width:768px){
    :root{--gutter:20px}
    .section{padding:60px 0}
    .section-tight{padding:52px 0}
    .cat-hero{padding:124px 0 52px;background-image:linear-gradient(180deg, rgba(6,10,20,.94), rgba(6,10,20,.86)), url('/assets/images/backpic/back-1.png')}
    .cat-hero h1{font-size:31px;line-height:1.28}
    .hero-lead{font-size:15.5px}
    .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px}
    .section-head h2{font-size:23px}
    .news-grid{grid-template-columns:1fr}
    .rail-card{width:78%;min-width:0}
    .rail-wrap::after{display:none}
    .cta-band{flex-direction:column;align-items:flex-start;padding:28px 22px}
    .cta-band h2{font-size:22px}
    .hero-panel{padding:20px}
    .footer-grid{grid-template-columns:1fr;gap:30px}
    .site-footer{margin-top:64px;padding-top:48px}
    .footer-bottom{flex-direction:column;align-items:flex-start}
  }
  @media (max-width:520px){
    .cat-hero h1{font-size:27px}
    .news-card{flex-direction:column;gap:14px}
    .news-thumb{flex:none;width:100%}
    .news-thumb img{aspect-ratio:16/9}
    .stats-grid{grid-template-columns:1fr}
    .cycle-grid{grid-template-columns:1fr}
    .hero-actions .btn{width:100%}
    .faq-q{font-size:15px;padding:18px 18px}
    .faq-a p{padding:0 18px 18px}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
  }

/* roulang page: category4 */
:root{
  --bg-0:#060A14;
  --bg-1:#0B1222;
  --bg-2:#121A2E;
  --glass:rgba(255,255,255,.06);
  --primary:#35E3D2;
  --secondary:#6C63FF;
  --accent:#FFB33F;
  --t1:#F2F6FF;
  --t2:#A9B6CE;
  --t3:#6B7893;
  --line:rgba(255,255,255,.08);
  --line-hover:rgba(53,227,210,.45);
  --radius-card:20px;
  --radius-btn:12px;
  --radius-img:16px;
  --radius-pill:999px;
  --radius-badge:6px;
  --shadow-card:0 12px 32px rgba(0,0,0,.45);
  --shadow-glow:0 0 0 1px rgba(53,227,210,.5), 0 8px 24px rgba(53,227,210,.25);
  --container:1280px;
  --space-section:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t2);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden;}
img{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;}
h1,h2,h3,h4{color:var(--t1);margin:0;line-height:1.3;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
.section{padding:var(--space-section) 0;}
.section-sm{padding:56px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.section-title{font-size:28px;font-weight:700;letter-spacing:-.01em;}
.section-desc{margin-top:10px;color:var(--t3);font-size:14.5px;max-width:640px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--radius-pill);
  font-size:13px;letter-spacing:.06em;color:var(--primary);
  border:1px solid rgba(53,227,210,.35);background:rgba(53,227,210,.08);
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px var(--primary);}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  border-bottom:1px solid transparent;
  transition:background .3s ease-out,backdrop-filter .3s ease-out,border-color .3s ease-out;
}
.site-header.is-scrolled{
  background:rgba(6,10,20,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
  box-shadow:inset 0 -1px 0 rgba(255,255,255,.05);
}
.header-inner{display:flex;align-items:center;gap:24px;height:78px;}
.brand{display:flex;flex-direction:column;line-height:1.08;flex:none;}
.brand-main{font-size:22px;font-weight:700;color:var(--t1);letter-spacing:.08em;}
.brand-sub{font-size:10px;letter-spacing:.32em;color:var(--primary);margin-top:4px;}
.nav-pills{
  display:flex;align-items:center;gap:4px;padding:6px;
  border-radius:var(--radius-pill);border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.nav-pill{
  position:relative;display:flex;align-items:center;justify-content:center;
  min-height:38px;padding:8px 16px;border-radius:var(--radius-pill);
  font-size:14px;color:var(--t2);transition:color .2s,background .2s;
  white-space:nowrap;
}
.nav-pill:hover{color:var(--t1);background:rgba(255,255,255,.06);}
.nav-pill.active{color:var(--primary);background:rgba(53,227,210,.12);}
.nav-pill.active::before{
  content:"";position:absolute;top:3px;left:50%;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--primary);
  box-shadow:0 0 10px var(--primary);
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.search-form{position:relative;}
.search-input{
  width:176px;padding:10px 14px 10px 36px;border-radius:var(--radius-btn);
  border:1px solid var(--line);background:rgba(255,255,255,.05);
  color:var(--t1);font-size:14px;transition:border-color .2s,box-shadow .2s;
}
.search-input::placeholder{color:var(--t3);}
.search-input:focus{
  outline:none;border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(53,227,210,.15);
}
.search-icon{
  position:absolute;left:12px;top:50%;transform:translateY(-50%);
  width:15px;height:15px;border:2px solid var(--t3);border-radius:50%;
}
.search-icon::after{
  content:"";position:absolute;right:-5px;bottom:-4px;width:7px;height:2px;
  background:var(--t3);transform:rotate(45deg);border-radius:2px;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;padding:13px 24px;cursor:pointer;
  transition:transform .16s ease-out,box-shadow .16s ease-out,background .16s ease-out,color .16s ease-out,border-color .16s ease-out;
}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#FFFFFF;box-shadow:var(--shadow-glow);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(53,227,210,.6),0 12px 32px rgba(53,227,210,.35);}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(53,227,210,.45),0 4px 14px rgba(53,227,210,.2);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--t1);}
.btn-ghost:hover{border-color:var(--line-hover);background:rgba(255,255,255,.05);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.nav-toggle{
  display:none;width:46px;height:46px;border-radius:var(--radius-btn);
  border:1px solid var(--line);background:rgba(255,255,255,.05);
  cursor:pointer;position:relative;
}
.nav-toggle span{
  position:absolute;left:50%;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--t1);
  transition:transform .25s ease-out,opacity .25s ease-out;
}
.nav-toggle span:nth-child(1){top:16px;}
.nav-toggle span:nth-child(2){top:22px;}
.nav-toggle span:nth-child(3){top:28px;}
.nav-toggle.is-open span:nth-child(1){transform:translateX(-50%) translateY(6px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateX(-50%) translateY(-6px) rotate(-45deg);}

.mobile-drawer{
  position:fixed;inset:0;z-index:75;
  background:rgba(6,10,20,.97);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  padding:110px 24px 32px;display:flex;flex-direction:column;gap:8px;
  transform:translateY(-8px);opacity:0;pointer-events:none;
  transition:opacity .25s ease-out,transform .25s ease-out;
}
.mobile-drawer.is-open{opacity:1;transform:translateY(0);pointer-events:auto;}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:56px;padding:16px 4px;font-size:17px;color:var(--t2);
  border-bottom:1px solid var(--line);
}
.drawer-link.active{color:var(--primary);}
.drawer-link::after{content:"›";color:var(--t3);font-size:20px;line-height:1;}
.drawer-cta{margin-top:24px;width:100%;}

/* ---------- 页面头区 ---------- */
.page-hero{
  position:relative;padding:160px 0 80px;
  background-image:linear-gradient(180deg,rgba(6,10,20,.86) 0%,rgba(6,10,20,.72) 45%,rgba(6,10,20,.96) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:140px;
  background:linear-gradient(180deg,rgba(6,10,20,0),var(--bg-0));pointer-events:none;
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.35fr .85fr;gap:56px;align-items:center;}
.page-title{font-size:46px;font-weight:700;letter-spacing:-.01em;margin:22px 0 0;}
.page-title-main{display:block;}
.page-title-sub{display:block;font-size:24px;color:var(--primary);font-weight:600;margin-top:12px;letter-spacing:0;}
.hero-lead{margin-top:22px;font-size:16.5px;color:var(--t2);max-width:620px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px;}
.pill-tag{
  padding:7px 15px;border-radius:var(--radius-pill);font-size:13.5px;
  color:var(--t2);border:1px solid var(--line);background:rgba(255,255,255,.05);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius-img);border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.hero-visual::after{
  content:"";position:absolute;top:-1px;right:-1px;width:64px;height:2px;
  background:linear-gradient(90deg,rgba(53,227,210,0),var(--primary));border-radius:2px;
}
.hero-visual-cap{
  margin-top:14px;font-size:13px;color:var(--t3);
}

/* ---------- 数据条 ---------- */
.stat-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.stat-cell{background:rgba(11,18,34,.92);padding:24px 26px;}
.stat-num{font-size:20px;font-weight:700;color:var(--t1);letter-spacing:-.01em;}
.stat-label{margin-top:8px;font-size:13px;color:var(--t3);}

/* ---------- 筛选条 ---------- */
.filter-bar{
  display:flex;flex-wrap:wrap;gap:10px;padding:18px 20px;
  border-radius:var(--radius-card);border:1px solid var(--line);
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.filter-pill{
  min-height:40px;padding:9px 18px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:transparent;color:var(--t2);
  font-size:14px;cursor:pointer;transition:all .2s ease-out;
}
.filter-pill:hover{color:var(--t1);border-color:var(--line-hover);}
.filter-pill.is-active{
  color:var(--primary);border-color:rgba(53,227,210,.5);
  background:rgba(53,227,210,.12);
}
.filter-note{margin-top:14px;font-size:13px;color:var(--t3);}

/* ---------- 规格信息列表 ---------- */
.spec-list{
  border:1px solid var(--line);border-radius:var(--radius-card);
  background:var(--bg-1);overflow:hidden;
}
.spec-row{
  display:grid;grid-template-columns:240px 1fr;gap:28px;
  padding:20px 28px;border-bottom:1px solid var(--line);
  transition:background .2s ease-out,padding-left .2s ease-out;
}
.spec-row:last-child{border-bottom:0;}
.spec-row:hover{background:rgba(53,227,210,.04);}
.spec-row.is-hidden{display:none;}
.spec-key{
  display:flex;align-items:center;gap:10px;
  color:var(--t1);font-weight:600;font-size:15px;
}
.spec-key::before{
  content:"";width:6px;height:6px;border-radius:2px;flex:none;
  background:var(--primary);box-shadow:0 0 8px rgba(53,227,210,.8);
}
.spec-val{color:var(--t2);font-size:15px;}

/* ---------- 报错对照 ---------- */
.err-list{display:grid;gap:12px;}
.err-row{
  display:grid;grid-template-columns:1.05fr 1fr 1.25fr;gap:20px;
  align-items:center;padding:20px 24px;border-radius:var(--radius-img);
  background:var(--bg-2);border:1px solid var(--line);
  transition:transform .2s ease-out,border-color .2s ease-out;
}
.err-row:hover{transform:translateY(-2px);border-color:var(--line-hover);}
.err-row.is-hidden{display:none;}
.err-code{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14.5px;font-weight:600;color:var(--t1);
}
.err-code::before{
  content:"";width:6px;height:6px;border-radius:50%;flex:none;
  background:var(--accent);box-shadow:0 0 8px rgba(255,179,63,.7);
}
.err-why{font-size:14.5px;color:var(--t2);}
.err-fix{font-size:14.5px;color:var(--t2);}
.err-fix strong{color:var(--primary);font-weight:600;}
.err-head{
  display:grid;grid-template-columns:1.05fr 1fr 1.25fr;gap:20px;
  padding:0 24px 12px;font-size:12.5px;letter-spacing:.1em;color:var(--t3);
}

/* ---------- 步骤卡 ---------- */
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.step-card{
  position:relative;padding:26px 24px 28px;border-radius:var(--radius-card);
  background:var(--bg-1);border:1px solid var(--line);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.step-card:hover{transform:translateY(-4px);border-color:var(--line-hover);box-shadow:var(--shadow-card);}
.step-card::after{
  content:"";position:absolute;top:-1px;right:24px;width:48px;height:2px;
  border-radius:2px;background:linear-gradient(90deg,rgba(53,227,210,0),var(--primary));
}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:var(--radius-badge);
  font-size:15px;font-weight:700;color:var(--primary);
  background:rgba(53,227,210,.12);border:1px solid rgba(53,227,210,.3);
}
.step-card h3{margin-top:18px;font-size:17px;font-weight:600;}
.step-card p{margin-top:10px;font-size:14.5px;color:var(--t2);}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:920px;margin:0 auto;}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius-card);
  background:var(--glass);overflow:hidden;
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  transition:border-color .2s ease-out;
}
.faq-item.open{border-color:var(--line-hover);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;
  gap:18px;padding:22px 26px;min-height:44px;background:none;border:0;
  color:var(--t1);font-size:17px;font-weight:600;text-align:left;cursor:pointer;
  transition:color .2s ease-out;
}
.faq-q:hover{color:var(--primary);}
.faq-icon{
  position:relative;flex:none;width:20px;height:20px;
  transition:transform .3s ease-out;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;
}
.faq-icon::before{top:9px;left:0;width:20px;height:2px;}
.faq-icon::after{left:9px;top:0;width:2px;height:20px;}
.faq-item.open .faq-icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease-out;}
.faq-item.open .faq-a{max-height:360px;}
.faq-a-inner{padding:0 26px 24px;font-size:15px;color:var(--t2);border-top:1px solid var(--line);padding-top:18px;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;display:flex;align-items:center;justify-content:space-between;
  gap:36px;flex-wrap:wrap;padding:44px 46px;border-radius:24px;
  border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(53,227,210,.12),rgba(108,99,255,.16));
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(53,227,210,0),var(--primary),rgba(108,99,255,0));
}
.cta-band h2{font-size:26px;font-weight:700;}
.cta-band p{margin-top:12px;font-size:15px;color:var(--t2);max-width:620px;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:var(--space-section);background:var(--bg-1);
  border-top:1px solid var(--line);padding:68px 0 28px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:44px;}
.footer-brand .brand-main{font-size:24px;}
.footer-brand p{margin-top:20px;font-size:14.5px;color:var(--t2);max-width:340px;}
.footer-col h3{font-size:14px;letter-spacing:.06em;color:var(--t1);margin-bottom:18px;}
.footer-col ul{display:grid;gap:12px;}
.footer-col a{font-size:14px;color:var(--t2);transition:color .2s ease-out;}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{
  margin-top:44px;padding-top:24px;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(--t3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .nav-pill{padding:8px 12px;font-size:13.5px;}
  .search-input{width:140px;}
}
@media (max-width:1024px){
  :root{--space-section:72px;}
  .nav-pills,.search-form,.btn-cta-top{display:none;}
  .nav-toggle{display:block;}
  .page-hero{padding:140px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .page-title{font-size:38px;}
  .stat-bar{grid-template-columns:repeat(2,1fr);}
  .step-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .spec-row{grid-template-columns:200px 1fr;gap:20px;}
  .err-head{display:none;}
}
@media (max-width:768px){
  :root{--space-section:56px;}
  .container{padding:0 20px;}
  .header-inner{height:68px;}
  .brand-main{font-size:19px;}
  .brand-sub{font-size:9px;letter-spacing:.26em;}
  .page-hero{padding:120px 0 52px;}
  .page-title{font-size:29px;}
  .page-title-sub{font-size:18px;}
  .hero-lead{font-size:15.5px;}
  .section-title{font-size:23px;}
  .stat-bar{grid-template-columns:1fr;}
  .spec-row{grid-template-columns:1fr;gap:8px;padding:18px 20px;}
  .spec-key{font-size:14.5px;}
  .err-row{grid-template-columns:1fr;gap:10px;padding:18px 20px;}
  .err-row [data-label]::before{
    content:attr(data-label) "：";color:var(--t3);font-size:12.5px;
  }
  .step-grid{grid-template-columns:1fr;}
  .faq-q{font-size:15.5px;padding:20px;}
  .faq-a-inner{padding:16px 20px 22px;}
  .cta-band{padding:32px 24px;flex-direction:column;align-items:flex-start;}
  .cta-band h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .hero-actions .btn{width:100%;}
  .page-title{font-size:26px;}
}