/* roulang page: index */
:root{
  --ink:#0A0C0B;
  --surface:#131816;
  --surface-2:#1A211E;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(168,255,53,.45);
  --primary:#A8FF35;
  --primary-ink:#0A0C0B;
  --accent:#FF3D71;
  --accent-2:#FFD166;
  --tx:#F2F5F3;
  --tx-2:#9AA5A0;
  --tx-3:#66706B;
  --r-card:16px;
  --r-img:20px;
  --r-input:12px;
  --r-pill:999px;
  --r-badge:6px;
  --sh-rest:0 2px 8px rgba(0,0,0,.4);
  --sh-hover:0 24px 60px -20px rgba(0,0,0,.7);
  --ease:cubic-bezier(.22,.61,.36,1);
  --nav-h:72px;
  --mono:ui-monospace,"Roboto Mono","SFMono-Regular",Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink);
  color:var(--tx);
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16.5px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.25}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
::selection{background:var(--primary);color:var(--primary-ink)}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--primary);font-weight:700;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--primary);opacity:.7}
.section{padding:112px 0;border-top:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.section-head h2{font-size:clamp(24px,3vw,36px)}
.section-head p{color:var(--tx-2);font-size:15px;max-width:58ch;margin-top:10px}
.textlink{color:var(--primary);font-size:14px;font-weight:700;white-space:nowrap;display:inline-flex;align-items:center;gap:6px;transition:gap .22s var(--ease)}
.textlink:hover{gap:12px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:800;letter-spacing:.01em;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
  position:relative;overflow:hidden;
}
.btn-primary{background:var(--primary);color:var(--primary-ink);box-shadow:var(--sh-rest)}
.btn-primary::after{
  content:"";position:absolute;top:0;left:-120%;width:60%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.55),transparent);
  transform:skewX(-18deg);transition:left .32s var(--ease);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--sh-hover)}
.btn-primary:hover::after{left:130%}
.btn-ghost{border:1px solid var(--line);color:var(--tx)}
.btn-ghost:hover{border-color:var(--line-strong);color:var(--primary);transform:translateY(-2px)}
.btn-ghost::after{display:none}
.btn-sm{padding:10px 20px;font-size:14px}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;height:var(--nav-h);
  background:rgba(10,12,11,.86);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:linear-gradient(90deg,var(--primary),transparent 42%);
  opacity:.55;
}
.nav-inner{height:var(--nav-h);display:flex;align-items:center;gap:32px}
.logo{display:flex;align-items:center;gap:11px;font-size:18px;font-weight:900;letter-spacing:-.02em;flex:0 0 auto}
.logo-mark{
  width:26px;height:26px;border-radius:8px;
  background:linear-gradient(140deg,var(--primary),#5fc400);
  position:relative;transform:skewX(-8deg);flex:0 0 auto;
}
.logo-mark::after{content:"";position:absolute;inset:7px 6px 7px 12px;background:var(--ink);border-radius:2px;transform:skewX(8deg)}
.logo span small{display:block;font-size:10px;letter-spacing:.2em;color:var(--tx-3);font-weight:600;line-height:1}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-links a{
  position:relative;padding:9px 14px;font-size:15px;font-weight:600;color:var(--tx-2);
  transition:color .22s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform .26s var(--ease);border-radius:2px;
}
.nav-links a:hover{color:var(--tx)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--primary)}
.nav-links a.active::after{transform:scaleX(1);box-shadow:0 0 0 1px rgba(168,255,53,.35),0 0 24px rgba(168,255,53,.18)}
.nav-cta{margin-left:12px;flex:0 0 auto}
.nav-toggle{display:none;width:44px;height:44px;margin-left:auto;align-items:center;justify-content:center;border-radius:10px;border:1px solid var(--line)}
.nav-toggle i{position:relative;display:block;width:20px;height:2px;background:var(--tx);border-radius:2px;transition:background .2s var(--ease)}
.nav-toggle i::before,.nav-toggle i::after{content:"";position:absolute;left:0;width:20px;height:2px;background:var(--tx);border-radius:2px;transition:transform .26s var(--ease)}
.nav-toggle i::before{top:-6px}
.nav-toggle i::after{top:6px}
.nav-toggle.open i{background:transparent}
.nav-toggle.open i::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle.open i::after{transform:translateY(-6px) rotate(-45deg)}
.mobile-panel{
  position:fixed;top:var(--nav-h);right:0;width:min(320px,86vw);height:calc(100vh - var(--nav-h));
  background:var(--surface);border-left:1px solid var(--line);
  padding:26px 22px;transform:translateX(105%);transition:transform .3s var(--ease);
  z-index:59;display:flex;flex-direction:column;gap:6px;
}
.mobile-panel.open{transform:translateX(0)}
.mobile-panel a{padding:14px 4px;font-size:18px;font-weight:700;border-bottom:1px solid var(--line)}
.mobile-panel a.active{color:var(--primary)}
.mobile-panel .btn{margin-top:20px;width:100%}

/* ---------- Hero ---------- */
.hero{position:relative;padding:84px 0 72px;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.035) 0 1px,transparent 1px 9px);
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;width:44vw;height:44vw;max-width:620px;max-height:620px;
  top:-14vw;left:-10vw;border-radius:50%;
  background:radial-gradient(circle,rgba(168,255,53,.14),transparent 68%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(30px,4.2vw,52px);margin:20px 0 18px;letter-spacing:-.035em}
.hero h1 em{font-style:normal;color:var(--primary)}
.hero-sub{color:var(--tx-2);font-size:17px;max-width:52ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-stats{display:flex;gap:0;margin-top:40px;border-top:1px solid var(--line);padding-top:22px}
.hero-stats div{flex:1;padding-right:18px;position:relative}
.hero-stats div+div{padding-left:18px;border-left:1px solid var(--line)}
.hero-stats strong{display:block;font-family:var(--mono);font-size:26px;color:var(--primary);font-weight:700}
.hero-stats span{font-size:13px;color:var(--tx-3)}
.hero-media{position:relative;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-rest)}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,12,11,.05),rgba(10,12,11,.62))}
.float-badge{
  position:absolute;z-index:3;display:flex;align-items:center;gap:10px;
  padding:11px 15px;border-radius:12px;background:rgba(10,12,11,.82);
  border:1px solid rgba(168,255,53,.35);backdrop-filter:blur(6px);
  font-size:13px;box-shadow:0 0 0 1px rgba(168,255,53,.35),0 0 24px rgba(168,255,53,.18);
}
.float-badge b{font-family:var(--mono);color:var(--primary);font-size:15px}
.badge-live{left:18px;bottom:18px}
.badge-sync{right:18px;top:18px}

/* ---------- Ticker ---------- */
.ticker{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--surface)}
.ticker-track{display:flex;overflow-x:auto;scrollbar-width:none}
.ticker-track::-webkit-scrollbar{display:none}
.ticker-item{
  flex:0 0 auto;display:flex;align-items:baseline;gap:10px;
  padding:18px 30px;border-right:1px solid var(--line);font-size:14px;color:var(--tx-2);white-space:nowrap;
}
.ticker-item b{font-family:var(--mono);font-size:17px;color:var(--tx);font-weight:700}

/* ---------- Flow list ---------- */
.flow{display:grid;grid-template-columns:340px 1fr;gap:64px}
.flow-aside{position:sticky;top:calc(var(--nav-h) + 32px);align-self:start}
.flow-aside h2{font-size:clamp(24px,3vw,34px);margin:16px 0 14px}
.flow-aside p{color:var(--tx-2);font-size:15px}
.flow-list{border-top:1px solid var(--line)}
.flow-item{display:grid;grid-template-columns:96px 1fr;gap:24px;padding:30px 0;border-bottom:1px solid var(--line);transition:padding-left .26s var(--ease)}
.flow-item:hover{padding-left:8px}
.flow-num{
  font-family:var(--mono);font-size:40px;font-weight:700;line-height:1;
  color:transparent;-webkit-text-stroke:1px rgba(168,255,53,.55);
}
.flow-item:hover .flow-num{-webkit-text-stroke:1px var(--primary)}
.flow-item h3{font-size:20px;margin-bottom:8px}
.flow-item p{color:var(--tx-2);font-size:15px}

/* ---------- Reward rail ---------- */
.rail{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding:6px 4px 22px;margin:0 -4px}
.rail::-webkit-scrollbar{height:5px}
.rail::-webkit-scrollbar-thumb{background:rgba(168,255,53,.35);border-radius:6px}
.rail::-webkit-scrollbar-track{background:rgba(255,255,255,.05);border-radius:6px}
.reward-card{
  flex:0 0 clamp(258px,28%,320px);scroll-snap-align:start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:0 0 22px;overflow:hidden;position:relative;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.reward-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--primary),transparent);
  opacity:0;transition:opacity .22s var(--ease);
}
.reward-card:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--sh-hover)}
.reward-card:hover::before{opacity:1}
.reward-card.is-feature{flex-basis:clamp(300px,40%,440px);background:var(--surface-2)}
.reward-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.reward-body{padding:20px 22px 0}
.reward-body h3{font-size:19px;margin:12px 0 8px}
.reward-body p{color:var(--tx-2);font-size:14.5px}
.reward-metrics{display:flex;gap:20px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line)}
.reward-metrics div{font-size:12px;color:var(--tx-3)}
.reward-metrics b{display:block;font-family:var(--mono);font-size:18px;color:var(--tx);font-weight:700}
.badge{
  display:inline-flex;align-items:center;padding:3px 9px;border-radius:var(--r-badge);
  font-size:12px;font-weight:700;letter-spacing:.02em;
}
.badge-green{background:rgba(168,255,53,.14);color:var(--primary);border:1px solid rgba(168,255,53,.3)}
.badge-pink{background:rgba(255,61,113,.14);color:var(--accent);border:1px solid rgba(255,61,113,.3)}
.badge-amber{background:rgba(255,209,102,.13);color:var(--accent-2);border:1px solid rgba(255,209,102,.28)}
.badge-plain{background:rgba(255,255,255,.06);color:var(--tx-2);border:1px solid var(--line)}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:12px}
.step{position:relative;padding:0 18px 0 0}
.step::before{content:"";position:absolute;top:11px;left:0;right:0;height:1px;background:linear-gradient(90deg,rgba(168,255,53,.6),rgba(168,255,53,.06))}
.step:last-child::before{background:linear-gradient(90deg,rgba(168,255,53,.6),transparent)}
.step-dot{
  position:relative;z-index:2;width:22px;height:22px;border-radius:50%;
  background:var(--surface);border:1px solid var(--line-strong);
  display:flex;align-items:center;justify-content:center;margin-bottom:20px;
}
.step-dot::after{content:"";width:8px;height:8px;border-radius:50%;background:var(--tx-3)}
.step.is-active .step-dot{border-color:var(--primary);box-shadow:0 0 0 1px rgba(168,255,53,.35),0 0 24px rgba(168,255,53,.18)}
.step.is-active .step-dot::after{background:var(--primary);animation:pulse 2.4s infinite}
@keyframes pulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.35);opacity:.6}}
.step h3{font-size:17px;margin-bottom:6px}
.step p{color:var(--tx-2);font-size:14px}
.progress-row{display:flex;align-items:center;gap:20px;margin-top:44px}
.progress{flex:1;height:8px;border-radius:var(--r-pill);background:rgba(255,255,255,.06);overflow:hidden}
.progress i{display:block;height:100%;width:75%;border-radius:var(--r-pill);background:linear-gradient(90deg,var(--primary),#63c400)}
.progress-row b{font-family:var(--mono);font-size:20px;color:var(--primary)}

/* ---------- News ---------- */
.news-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px}
.news-lead{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;position:relative;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.news-lead:hover,.news-item:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--sh-hover)}
.news-lead img{width:100%;aspect-ratio:16/9;object-fit:cover}
.news-lead-body{padding:24px 26px 26px;display:flex;flex-direction:column;flex:1}
.news-lead h3{font-size:22px;margin:14px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-lead p{color:var(--tx-2);font-size:15px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-side{display:flex;flex-direction:column;gap:24px}
.news-item{
  display:grid;grid-template-columns:112px 1fr;gap:18px;align-items:start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px;flex:1;transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.news-item img{width:112px;aspect-ratio:4/3;object-fit:cover;border-radius:12px}
.news-item h3{font-size:17px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item p{color:var(--tx-2);font-size:14px;margin-top:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--tx-3);margin-top:14px}
.meta .arrow{margin-left:auto;color:var(--primary);transition:transform .22s var(--ease)}
.news-lead:hover .arrow,.news-item:hover .arrow{transform:translateX(4px)}
.news-foot{margin-top:32px;text-align:center}
.empty-state{
  min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  border:1px dashed var(--line);border-radius:var(--r-card);background:var(--surface);text-align:center;padding:32px;
}
.empty-state svg{width:46px;height:46px;stroke:var(--primary);fill:none;stroke-width:1.4}
.empty-state p{color:var(--tx-2);font-size:15px}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:18px;text-align:left;
  padding:24px 0;font-size:17px;font-weight:700;color:var(--tx);
  position:relative;transition:color .22s var(--ease);
}
.faq-q:hover{color:var(--primary)}
.faq-q::before{
  content:"";position:absolute;left:-18px;top:18px;bottom:18px;width:2px;
  background:linear-gradient(180deg,var(--primary),transparent);
  opacity:0;transition:opacity .26s var(--ease);
}
.faq-item.open .faq-q::before{opacity:1}
.faq-icon{
  margin-left:auto;width:26px;height:26px;flex:0 0 auto;border:1px solid var(--line);
  border-radius:7px;position:relative;transition:transform .26s var(--ease),border-color .26s var(--ease);
}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--tx-2);border-radius:2px}
.faq-icon::before{left:6px;right:6px;top:12px;height:2px}
.faq-icon::after{top:6px;bottom:6px;left:12px;width:2px;transition:transform .26s var(--ease),opacity .26s var(--ease)}
.faq-item.open .faq-icon{transform:rotate(90deg);border-color:var(--line-strong)}
.faq-item.open .faq-icon::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s var(--ease)}
.faq-a p{color:var(--tx-2);font-size:15px;max-width:72ch;padding:0 0 26px}

/* ---------- CTA bar ---------- */
.cta-bar{
  position:relative;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:var(--surface);
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.03) 0 1px,transparent 1px 9px);
}
.cta-bar::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,var(--primary),transparent 60%)}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:58px 0;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(22px,2.6vw,32px);margin-bottom:10px}
.cta-inner p{color:var(--tx-2);font-size:15px}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);padding:72px 0 0;position:relative}
.site-footer::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,var(--primary),transparent 55%);opacity:.6}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{color:var(--tx-2);font-size:14.5px;max-width:38ch}
.footer-social{display:flex;gap:10px;margin-top:20px}
.footer-social span{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--tx-2);
  transition:border-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.footer-social span:hover{border-color:var(--line-strong);color:var(--primary);transform:translateY(-2px)}
.footer-col h4{font-size:14px;letter-spacing:.08em;color:var(--tx);margin-bottom:18px}
.footer-col a{display:block;color:var(--tx-2);font-size:14.5px;padding:7px 0;transition:color .22s var(--ease),transform .22s var(--ease)}
.footer-col a:hover{color:var(--primary);transform:translateX(2px)}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--line);padding:24px 0 32px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13.5px;color:var(--tx-3);
}
.footer-bottom .num{color:var(--tx-2)}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .section{padding:80px 0}
  .hero{padding:64px 0 56px}
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .flow{grid-template-columns:1fr;gap:32px}
  .flow-aside{position:static}
  .news-grid{grid-template-columns:1fr}
  .news-side{flex-direction:row;flex-wrap:wrap}
  .news-item{flex:1 1 calc(50% - 12px)}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
  .footer-col:last-child{grid-column:span 3}
  .steps{grid-template-columns:repeat(2,1fr);gap:32px 0}
  .step:nth-child(2)::before{background:linear-gradient(90deg,rgba(168,255,53,.6),transparent)}
}
@media (max-width:860px){
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:flex}
}
@media (max-width:768px){
  body{font-size:16px}
  .container{padding:0 20px}
  .hy{display:none}
  .section{padding:64px 0}
  .section-head{flex-direction:column;align-items:flex-start}
  .rail{gap:16px}
  .reward-card{flex-basis:min(82vw,320px)}
  .reward-card.is-feature{flex-basis:min(88vw,360px)}
  .news-item{flex:1 1 100%;grid-template-columns:96px 1fr}
  .news-item img{width:96px}
  .cta-inner{padding:44px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-col:last-child{grid-column:span 2}
}
@media (max-width:520px){
  .hero h1{font-size:29px}
  .hero-stats{flex-wrap:wrap;gap:16px 0}
  .hero-stats div{flex:1 1 50%;padding:0}
  .hero-stats div+div{border-left:0;padding-left:0}
  .steps{grid-template-columns:1fr}
  .step{padding-right:0}
  .step::before{display:none}
  .flow-item{grid-template-columns:56px 1fr;gap:16px}
  .flow-num{font-size:30px}
  .news-item{grid-template-columns:1fr;gap:14px}
  .news-item img{width:100%;aspect-ratio:16/9}
  .footer-grid{grid-template-columns:1fr}
  .footer-col:last-child{grid-column:span 1}
  .footer-bottom{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .btn-primary:hover,.reward-card:hover,.news-lead:hover,.news-item:hover{transform:none}
}

/* roulang page: category1 */
:root{
  --ink:#0A0C0B;
  --surface:#131816;
  --surface-2:#1A211E;
  --line:rgba(255,255,255,.08);
  --line-hover:rgba(168,255,53,.45);
  --primary:#A8FF35;
  --primary-ink:#0A0C0B;
  --accent:#FF3D71;
  --accent-2:#FFD166;
  --text:#F2F5F3;
  --text-2:#9AA5A0;
  --text-3:#66706B;
  --r-card:16px;
  --r-lg:20px;
  --r-input:12px;
  --r-pill:999px;
  --shadow-1:0 2px 8px rgba(0,0,0,.4);
  --shadow-2:0 24px 60px -20px rgba(0,0,0,.7);
  --ease:cubic-bezier(.22,.61,.36,1);
  --t:220ms;
  --font-cn:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num:ui-monospace,"Roboto Mono","SFMono-Regular",Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.nav-open{overflow:hidden;}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color var(--t) var(--ease);}
a:hover{color:var(--primary);}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0 0 18px;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.3;color:var(--text);}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 24px;
}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:.02em;}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(10,12,11,.86);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:2px;
  background:linear-gradient(90deg,transparent,rgba(168,255,53,.55),transparent);
  opacity:0;
  transition:opacity var(--t) var(--ease);
}
.site-header.is-scrolled::after{opacity:1;}
.nav-inner{
  height:72px;
  display:flex;
  align-items:center;
  gap:28px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:900;
  letter-spacing:-.02em;
  color:var(--text);
  white-space:nowrap;
}
.logo small{
  display:block;
  font-family:var(--font-num);
  font-size:9px;
  font-weight:500;
  letter-spacing:.24em;
  color:var(--text-3);
  line-height:1;
  margin-top:4px;
}
.logo-mark{
  width:22px;
  height:22px;
  flex:0 0 22px;
  border-radius:5px;
  background:linear-gradient(135deg,var(--primary),#5FCC1B);
  box-shadow:0 0 0 1px rgba(168,255,53,.35),0 0 22px rgba(168,255,53,.18);
  position:relative;
  transform:skewX(-12deg);
}
.logo-mark::after{
  content:"";
  position:absolute;
  inset:6px 6px 6px 6px;
  background:var(--ink);
  border-radius:2px;
  transform:skewX(0deg);
}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:auto;
}
.nav-links a{
  position:relative;
  padding:8px 14px;
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
  border-radius:10px;
  transition:color var(--t) var(--ease),background var(--t) var(--ease);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform 260ms var(--ease);
}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.04);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{
  color:var(--primary);
  background:rgba(168,255,53,.06);
}
.nav-links a.active::after{
  transform:scaleX(1);
  box-shadow:0 0 0 1px rgba(168,255,53,.35),0 0 18px rgba(168,255,53,.35);
}
.nav-cta{margin-left:8px;}
.nav-toggle{
  display:none;
  margin-left:auto;
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid var(--line);
  position:relative;
}
.nav-toggle i,
.nav-toggle i::before,
.nav-toggle i::after{
  position:absolute;
  left:50%;
  width:18px;height:2px;
  background:var(--text);
  border-radius:2px;
  transform:translateX(-50%);
  transition:transform 260ms var(--ease),opacity 200ms var(--ease);
}
.nav-toggle i{top:50%;margin-top:-1px;}
.nav-toggle i::before{content:"";left:0;top:-6px;transform:none;}
.nav-toggle i::after{content:"";left:0;top:6px;transform:none;}
body.nav-open .nav-toggle i{background:transparent;}
body.nav-open .nav-toggle i::before{transform:rotate(45deg);top:0;}
body.nav-open .nav-toggle i::after{transform:rotate(-45deg);top:0;}

/* ---------- buttons ---------- */
.btn{
  position:relative;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:700;
  letter-spacing:.01em;
  border:1px solid transparent;
  overflow:hidden;
  transition:transform var(--t) var(--ease),background var(--t) var(--ease),border-color var(--t) var(--ease),color var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-primary{background:var(--primary);color:var(--primary-ink);}
.btn-primary::after{
  content:"";
  position:absolute;
  top:0;left:-60%;
  width:40%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.65),transparent);
  transform:skewX(-18deg);
  transition:left 320ms var(--ease);
}
.btn-primary:hover{
  color:var(--primary-ink);
  transform:translateY(-2px);
  box-shadow:0 12px 32px -12px rgba(168,255,53,.55);
}
.btn-primary:hover::after{left:120%;}
.btn-ghost{
  border-color:var(--line);
  color:var(--text);
  background:rgba(255,255,255,.02);
}
.btn-ghost:hover{
  border-color:var(--line-hover);
  color:var(--primary);
  transform:translateY(-2px);
}
.btn-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-weight:700;
  font-size:15px;
  color:var(--text);
}
.btn-arrow span{
  display:inline-block;
  transition:transform var(--t) var(--ease);
}
.btn-arrow:hover{color:var(--primary);}
.btn-arrow:hover span{transform:translateX(4px);}

/* ---------- breadcrumb ---------- */
.crumb{
  border-bottom:1px solid var(--line);
  background:rgba(19,24,22,.5);
}
.crumb .container{
  display:flex;
  align-items:center;
  gap:10px;
  height:52px;
  font-size:13px;
  color:var(--text-3);
  overflow-x:auto;
  white-space:nowrap;
}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:var(--text-3);opacity:.6;}
.crumb .cur{color:var(--primary);font-weight:600;}

/* ---------- hero ---------- */
.cat-hero{
  position:relative;
  padding:80px 0 88px;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.cat-hero::before{
  content:"";
  position:absolute;
  top:-220px;right:-160px;
  width:640px;height:640px;
  max-width:70vw;
  background:radial-gradient(circle at center,rgba(168,255,53,.14),transparent 62%);
  pointer-events:none;
}
.cat-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.035) 0 1px,transparent 1px 12px);
  opacity:.5;
  pointer-events:none;
}
.cat-hero .container{position:relative;z-index:2;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--primary);
  margin-bottom:20px;
}
.eyebrow::before{
  content:"";
  width:26px;height:1px;
  background:var(--primary);
  display:inline-block;
}
.cat-hero h1{
  font-size:clamp(30px,4.2vw,52px);
  font-weight:900;
  letter-spacing:-.03em;
  margin-bottom:20px;
}
.hero-lead{
  font-size:17px;
  color:var(--text-2);
  line-height:1.9;
  max-width:52ch;
  margin-bottom:30px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-bottom:38px;
}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:0;
  border-top:1px solid var(--line);
  padding-top:22px;
}
.hero-stats div{
  padding-right:34px;
  margin-right:34px;
  border-right:1px solid var(--line);
}
.hero-stats div:last-child{border-right:0;margin-right:0;padding-right:0;}
.hero-stats strong{
  display:block;
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:24px;
  font-weight:700;
  color:var(--primary);
  letter-spacing:-.01em;
}
.hero-stats span{
  font-size:13px;
  color:var(--text-3);
}
.hero-visual{
  position:relative;
  margin:0;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  background:var(--surface);
}
.hero-visual img{
  width:100%;
  aspect-ratio:16/11;
  object-fit:cover;
  filter:saturate(.95) contrast(1.05);
}
.hero-visual::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(10,12,11,.05),rgba(10,12,11,.75));
  pointer-events:none;
}
.float-badge{
  position:absolute;
  z-index:3;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 15px;
  font-size:13px;
  font-weight:600;
  border-radius:12px;
  background:rgba(10,12,11,.82);
  border:1px solid rgba(168,255,53,.35);
  box-shadow:0 0 0 1px rgba(168,255,53,.14),0 0 24px rgba(168,255,53,.16);
  color:var(--text);
  backdrop-filter:blur(6px);
}
.float-badge .dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 10px rgba(168,255,53,.8);
}
.badge-bl{left:18px;bottom:18px;}
.badge-br{right:18px;bottom:18px;border-color:rgba(255,61,113,.4);
  box-shadow:0 0 0 1px rgba(255,61,113,.18),0 0 24px rgba(255,61,113,.14);}
.badge-br .dot{background:var(--accent);box-shadow:0 0 10px rgba(255,61,113,.8);}

/* ---------- sections ---------- */
.section{padding:96px 0;}
.section-sm{padding:72px 0;}
.section-line{border-bottom:1px solid var(--line);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:44px;
}
.section-head h2{
  font-size:clamp(24px,3vw,36px);
  font-weight:900;
  letter-spacing:-.03em;
}
.section-head p{
  margin:12px 0 0;
  color:var(--text-2);
  font-size:15px;
  max-width:62ch;
}
.section-tag{
  display:inline-block;
  font-family:var(--font-num);
  font-size:12px;
  letter-spacing:.16em;
  color:var(--primary);
  margin-bottom:14px;
  text-transform:uppercase;
}

/* ---------- flow list (numbered, alternating) ---------- */
.flow-list{display:flex;flex-direction:column;gap:0;}
.flow-item{
  padding:56px 0;
  border-top:1px solid var(--line);
}
.flow-item:first-child{border-top:0;padding-top:0;}
.flow-item:last-child{padding-bottom:0;}
.flow-text{position:relative;}
.flow-num{
  display:block;
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:56px;
  font-weight:700;
  line-height:1;
  letter-spacing:-.04em;
  color:transparent;
  -webkit-text-stroke:1px rgba(168,255,53,.5);
  margin-bottom:16px;
}
.flow-text h3{
  font-size:clamp(20px,2.2vw,26px);
  font-weight:800;
  margin-bottom:14px;
}
.flow-text p{color:var(--text-2);font-size:15.5px;max-width:56ch;}
.dot-list{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
.dot-list li{
  position:relative;
  padding-left:20px;
  font-size:14.5px;
  color:var(--text-2);
}
.dot-list li::before{
  content:"";
  position:absolute;
  left:0;top:12px;
  width:7px;height:7px;
  background:var(--primary);
  border-radius:2px;
}
.flow-media{
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--surface);
  box-shadow:var(--shadow-1);
  transition:box-shadow var(--t) var(--ease),transform var(--t) var(--ease),border-color var(--t) var(--ease);
}
.flow-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
}
.flow-media:hover{
  transform:translateY(-3px);
  border-color:var(--line-hover);
  box-shadow:var(--shadow-2);
}
@media screen and (min-width:1024px){
  .flow-item .grid-x{align-items:center;}
  .flow-item:nth-child(even) .grid-x{flex-direction:row-reverse;}
  .flow-item:nth-child(even) .flow-text{padding-left:8px;}
}

/* ---------- spec list ---------- */
.spec-panel{
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:linear-gradient(180deg,var(--surface),rgba(19,24,22,.6));
  overflow:hidden;
}
.spec-list{
  display:grid;
  grid-template-columns:repeat(4,1fr);
}
.spec-list li{
  padding:34px 28px;
  border-right:1px solid var(--line);
}
.spec-list li:last-child{border-right:0;}
.spec-list .spec-num{
  display:block;
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:30px;
  font-weight:700;
  color:var(--primary);
  letter-spacing:-.02em;
  margin-bottom:8px;
}
.spec-list .spec-label{
  font-size:14px;
  color:var(--text-2);
  display:block;
  line-height:1.6;
}

/* ---------- badge ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  font-size:12px;
  font-weight:600;
  border-radius:6px;
  background:rgba(168,255,53,.1);
  color:var(--primary);
  border:1px solid rgba(168,255,53,.22);
}
.badge-hot{
  background:rgba(255,61,113,.12);
  color:#FF7EA0;
  border-color:rgba(255,61,113,.3);
}

/* ---------- faq ---------- */
.faq{
  border-top:1px solid var(--line);
}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:24px 4px 24px 0;
  text-align:left;
  font-size:17px;
  font-weight:700;
  color:var(--text);
  transition:color var(--t) var(--ease);
}
.faq-q:hover{color:var(--primary);}
.faq-item.is-open .faq-q{color:var(--primary);}
.faq-icon{
  position:relative;
  flex:0 0 26px;
  width:26px;height:26px;
  border-radius:8px;
  border:1px solid var(--line);
  transition:transform 260ms var(--ease),border-color var(--t) var(--ease),background var(--t) var(--ease);
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  width:11px;height:1.5px;
  background:var(--text-2);
  transform:translate(-50%,-50%);
  transition:transform 260ms var(--ease),background var(--t) var(--ease);
}
.faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);}
.faq-item.is-open .faq-icon{
  background:rgba(168,255,53,.1);
  border-color:rgba(168,255,53,.45);
  transform:rotate(180deg);
}
.faq-item.is-open .faq-icon::before,
.faq-item.is-open .faq-icon::after{background:var(--primary);}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(0deg);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 260ms var(--ease);
}
.faq-a-inner{
  position:relative;
  padding:0 60px 26px 18px;
  max-width:72ch;
}
.faq-a-inner::before{
  content:"";
  position:absolute;
  left:0;top:4px;
  width:2px;height:calc(100% - 30px);
  background:linear-gradient(180deg,var(--primary),rgba(168,255,53,0));
  opacity:0;
  transition:opacity 260ms var(--ease);
}
.faq-item.is-open .faq-a-inner::before{opacity:1;}
.faq-a-inner p{
  margin:0;
  color:var(--text-2);
  font-size:15px;
  line-height:1.9;
}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;
  border-top:1px solid rgba(168,255,53,.4);
  border-bottom:1px solid var(--line);
  background:var(--surface);
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.04) 0 1px,transparent 1px 12px);
  pointer-events:none;
}
.cta-band .container{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  padding-top:52px;
  padding-bottom:52px;
}
.cta-band h2{
  font-size:clamp(22px,2.6vw,32px);
  font-weight:900;
  letter-spacing:-.03em;
  margin-bottom:8px;
}
.cta-band p{
  margin:0;
  color:var(--text-2);
  font-size:15px;
}

/* ---------- footer ---------- */
.site-footer{
  border-top:1px solid rgba(168,255,53,.3);
  background:var(--ink);
  padding-top:72px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:48px;
  padding-bottom:56px;
}
.footer-brand p{
  margin:20px 0 0;
  color:var(--text-2);
  font-size:14.5px;
  max-width:42ch;
}
.footer-social{
  display:flex;
  gap:12px;
  margin-top:22px;
}
.footer-social span{
  padding:6px 12px;
  font-size:12.5px;
  color:var(--text-2);
  border:1px solid var(--line);
  border-radius:8px;
  transition:color var(--t) var(--ease),border-color var(--t) var(--ease);
}
.footer-social span:hover{color:var(--primary);border-color:var(--line-hover);}
.footer-col h4{
  font-size:14px;
  font-weight:800;
  letter-spacing:.04em;
  margin-bottom:20px;
  color:var(--text);
}
.footer-col a{
  display:block;
  font-size:14.5px;
  color:var(--text-2);
  padding:6px 0;
  transition:color var(--t) var(--ease),transform var(--t) var(--ease);
}
.footer-col a:hover{color:var(--primary);transform:translateX(2px);}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  border-top:1px solid var(--line);
  padding:24px 0 40px;
  font-size:13px;
  color:var(--text-3);
}
.footer-bottom .num{color:var(--text-3);}

/* ---------- responsive ---------- */
@media screen and (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px;}
  .spec-list{grid-template-columns:1fr 1fr;}
  .spec-list li:nth-child(2){border-right:0;}
  .spec-list li:nth-child(1),
  .spec-list li:nth-child(2){border-bottom:1px solid var(--line);}
  .section{padding:80px 0;}
  .cat-hero{padding:64px 0 72px;}
  .hero-visual{margin-top:44px;}
}
@media screen and (max-width:640px){
  .container{padding:0 16px;}
  body{font-size:15.5px;}
  .nav-inner{height:60px;gap:12px;}
  .logo{font-size:15.5px;}
  .logo small{font-size:8px;letter-spacing:.18em;}
  .nav-toggle{display:block;}
  .nav-cta{display:none;}
  .nav-links{
    position:fixed;
    top:0;right:0;
    width:min(84vw,340px);
    height:100vh;
    flex-direction:column;
    align-items:flex-start;
    justify-content:flex-start;
    gap:4px;
    padding:96px 24px 32px;
    background:var(--surface-2);
    border-left:1px solid var(--line);
    box-shadow:-24px 0 60px rgba(0,0,0,.6);
    transform:translateX(102%);
    transition:transform 300ms var(--ease);
    z-index:90;
    overflow-y:auto;
  }
  body.nav-open .nav-links{transform:translateX(0);}
  .nav-links a{
    width:100%;
    font-size:18px;
    font-weight:600;
    padding:14px 6px;
    border-radius:10px;
  }
  .nav-links a::after{left:6px;right:auto;width:22px;bottom:6px;}
  .section{padding:56px 0;}
  .section-sm{padding:48px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:32px;}
  .cat-hero{padding:48px 0 56px;}
  .hero-lead{font-size:15.5px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{width:100%;}
  .hero-stats div{padding-right:20px;margin-right:20px;}
  .hero-stats strong{font-size:20px;}
  .hero-stats span{font-size:12px;}
  .float-badge{font-size:12px;padding:7px 12px;}
  .flow-item{padding:40px 0;}
  .flow-num{font-size:44px;}
  .flow-media{margin-top:24px;}
  .spec-list{grid-template-columns:1fr;}
  .spec-list li{border-right:0;border-bottom:1px solid var(--line);padding:26px 22px;}
  .spec-list li:last-child{border-bottom:0;}
  .faq-q{font-size:15.5px;padding:20px 0;}
  .faq-a-inner{padding:0 0 22px 16px;}
  .cta-band .container{flex-direction:column;align-items:flex-start;padding-top:40px;padding-bottom:40px;}
  .cta-band .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:34px;padding-bottom:40px;}
  .site-footer{padding-top:56px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;scroll-behavior:auto !important;}
  .btn-primary:hover{transform:none;}
  .flow-media:hover{transform:none;}
}

/* roulang page: article */
:root{
  --ink:#0A0C0B;
  --surface:#131816;
  --surface-2:#1A211E;
  --line:rgba(255,255,255,.08);
  --line-hot:rgba(168,255,53,.45);
  --primary:#A8FF35;
  --primary-ink:#0A0C0B;
  --accent:#FF3D71;
  --accent-2:#FFD166;
  --text:#F2F5F3;
  --text-2:#9AA5A0;
  --text-3:#66706B;
  --radius-sm:12px;
  --radius:16px;
  --radius-lg:20px;
  --shadow:0 2px 8px rgba(0,0,0,.4);
  --shadow-hover:0 24px 60px -20px rgba(0,0,0,.7);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --mono:ui-monospace,"Roboto Mono",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  background:var(--ink);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:repeating-linear-gradient(135deg,rgba(255,255,255,.014) 0 1px,transparent 1px 9px);
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em}
p{margin:0}
a:focus-visible,button:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,12,11,.86);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(168,255,53,.55) 30%,transparent 70%);
  opacity:.6;
}
.nav-inner{display:flex;align-items:center;gap:28px;height:72px;position:relative}
.logo{display:inline-flex;align-items:center;gap:12px;font-size:17px;font-weight:800;letter-spacing:-.02em;color:var(--text);line-height:1.15}
.logo small{display:block;font-size:9px;letter-spacing:.2em;color:var(--text-3);font-weight:600;margin-top:3px}
.logo-mark{
  width:13px;height:26px;flex:none;background:var(--primary);
  clip-path:polygon(40% 0,100% 0,60% 100%,0 100%);
  box-shadow:0 0 18px rgba(168,255,53,.35);
}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{position:relative;padding:10px 14px;font-size:15px;color:var(--text-2);border-radius:8px}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform .28s var(--ease);
}
.nav-links a:hover{color:var(--text)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--primary)}
.nav-links a.active::after{transform:scaleX(1);box-shadow:0 0 12px rgba(168,255,53,.6)}
.nav-toggle{
  display:none;width:40px;height:40px;margin-left:auto;padding:0;
  background:transparent;border:1px solid var(--line);border-radius:10px;
  cursor:pointer;position:relative;align-items:center;justify-content:center;
}
.nav-toggle i,.nav-toggle i::before,.nav-toggle i::after{
  display:block;width:18px;height:2px;border-radius:2px;background:var(--text);
  transition:transform .25s var(--ease),background .25s var(--ease),top .25s var(--ease);
}
.nav-toggle i{position:relative}
.nav-toggle i::before,.nav-toggle i::after{content:"";position:absolute;left:0}
.nav-toggle i::before{top:-6px}
.nav-toggle i::after{top:6px}
.nav-open .nav-toggle i{background:transparent}
.nav-open .nav-toggle i::before{top:0;transform:rotate(45deg)}
.nav-open .nav-toggle i::after{top:0;transform:rotate(-45deg)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:700;line-height:1;padding:13px 26px;
  border-radius:999px;border:1px solid transparent;cursor:pointer;
  position:relative;overflow:hidden;white-space:nowrap;
  transition:transform .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),background-color .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-primary{background:var(--primary);color:var(--primary-ink)}
.btn-primary::before{
  content:"";position:absolute;top:0;left:-130%;width:55%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.65),transparent);
  transform:skewX(-18deg);transition:left .32s var(--ease);
}
.btn-primary:hover::before{left:150%}
.btn-primary:hover{transform:translateY(-2px)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--line-hot);color:var(--primary)}

/* ---------- 主体 ---------- */
.page-main{position:relative;z-index:1;padding:34px 0 100px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--text-3);margin-bottom:22px}
.crumbs a:hover{color:var(--primary)}
.crumbs .sep{opacity:.45}
.crumbs .current{color:var(--primary);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.article-inner{max-width:760px;margin:0 auto}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.18em;
  text-transform:uppercase;color:var(--primary);
  padding:5px 12px;border-radius:6px;
  background:rgba(168,255,53,.1);border:1px solid rgba(168,255,53,.24);
}
.article-title{
  font-size:clamp(30px,4.2vw,48px);line-height:1.22;font-weight:900;
  letter-spacing:-.035em;margin:20px 0 18px;
}
.article-meta{
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;
  font-family:var(--mono);font-size:13px;color:var(--text-2);
  font-variant-numeric:tabular-nums;
}
.article-meta span{display:inline-flex;align-items:center}
.article-meta span + span::before{content:"·";color:var(--text-3);margin-right:14px}
.article-rule{height:1px;background:var(--line);margin:26px 0 0}

/* ---------- 正文 ---------- */
.article-body{
  margin-top:30px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:40px;
  font-size:17px;line-height:1.9;color:var(--text);
}
.article-body.is-empty{background:transparent;border:0;padding:0}
.article-body > *:first-child{margin-top:0}
.article-body > *:last-child{margin-bottom:0}
.article-body p{margin:0 0 1.45em;color:#DDE4E0}
.article-body h2{
  display:flex;align-items:center;gap:12px;
  font-size:clamp(22px,2.6vw,29px);letter-spacing:-.025em;
  margin:2.1em 0 .85em;color:var(--text);
}
.article-body h2::before{
  content:"";width:8px;height:22px;flex:none;border-radius:2px;
  background:var(--primary);box-shadow:0 0 14px rgba(168,255,53,.35);
}
.article-body h3{font-size:20px;font-weight:700;letter-spacing:-.015em;margin:1.8em 0 .7em}
.article-body strong{color:var(--text);font-weight:700}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(168,255,53,.35)}
.article-body a:hover{border-bottom-color:var(--primary)}
.article-body ul{list-style:none;margin:1.4em 0;padding:0}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:.62em;color:#DDE4E0}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.78em;width:7px;height:7px;
  border-radius:2px;background:var(--primary);
}
.article-body ol{margin:1.4em 0;padding-left:22px}
.article-body ol li{margin-bottom:.62em;color:#DDE4E0}
.article-body ol li::marker{color:var(--primary);font-family:var(--mono);font-weight:700}
.article-body blockquote{
  margin:1.8em 0;padding:16px 22px;border-left:3px solid var(--primary);
  background:rgba(168,255,53,.055);border-radius:0 12px 12px 0;color:var(--text-2);
}
.article-body blockquote p{margin:0;color:var(--text-2)}
.article-body img{border-radius:var(--radius-sm);margin:1.6em auto;height:auto}
.article-body figure{margin:1.8em 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin:1.8em 0;font-size:15px}
.article-body thead th{
  text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);
  color:var(--primary);font-size:13px;letter-spacing:.06em;font-weight:700;
}
.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);color:#DDE4E0}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.022)}
.article-body code{
  font-family:var(--mono);font-size:.92em;background:rgba(255,255,255,.06);
  padding:2px 6px;border-radius:6px;color:var(--primary);
}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}

/* ---------- 空态 ---------- */
.empty-state{padding:56px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:16px}
.empty-icon{
  width:52px;height:52px;border-radius:14px;border:1px solid rgba(168,255,53,.35);
  display:flex;align-items:center;justify-content:center;color:var(--primary);
  background:rgba(168,255,53,.07);
}
.empty-state h3{font-size:18px}
.empty-state p{color:var(--text-2);font-size:14px;max-width:40ch}

/* ---------- 标签与操作 ---------- */
.article-actions{
  display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;
  margin-top:26px;
}
.tag-list{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-block;font-size:13px;padding:6px 14px;border-radius:6px;
  background:rgba(168,255,53,.09);border:1px solid rgba(168,255,53,.22);color:var(--primary);
}
.action-btns{display:flex;flex-wrap:wrap;gap:10px}

/* ---------- 继续查看 ---------- */
.related{margin-top:76px}
.related-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px;flex-wrap:wrap}
.section-title{font-size:clamp(22px,3vw,32px);letter-spacing:-.03em}
.link-more{
  font-size:14px;color:var(--primary);display:inline-flex;align-items:center;gap:6px;
}
.link-more::after{content:"→";transition:transform .22s var(--ease)}
.link-more:hover::after{transform:translateX(4px)}
.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  position:relative;display:flex;flex-direction:column;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;z-index:2;
  background:linear-gradient(90deg,var(--primary),transparent);
  opacity:0;transition:opacity .22s var(--ease);
}
.card:hover{transform:translateY(-3px);border-color:var(--line-hot);box-shadow:var(--shadow-hover)}
.card:hover::before{opacity:1}
.card-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--surface-2)}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.card:hover .card-thumb img{transform:scale(1.04)}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.badge{
  align-self:flex-start;font-size:12px;padding:4px 10px;border-radius:6px;
  background:rgba(168,255,53,.12);border:1px solid rgba(168,255,53,.24);color:var(--primary);
}
.card-body h3{
  font-size:17px;font-weight:700;line-height:1.5;letter-spacing:-.01em;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-body p{
  font-size:14px;line-height:1.75;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  margin-top:auto;padding-top:8px;font-family:var(--mono);font-size:12px;color:var(--text-3);
}
.card:hover .card-meta span:last-child{color:var(--primary)}

/* ---------- 返回顶部 ---------- */
.back-top{
  position:fixed;right:24px;bottom:24px;z-index:50;
  width:46px;height:46px;border-radius:14px;cursor:pointer;
  background:var(--surface-2);border:1px solid var(--line);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:16px;
  opacity:0;pointer-events:none;
  transition:opacity .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease);
}
.back-top.show{opacity:1;pointer-events:auto}
.back-top:hover{border-color:var(--line-hot);transform:translateY(-2px)}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;z-index:1;margin-top:0;padding-top:72px;
  background:var(--surface);border-top:1px solid rgba(168,255,53,.22);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:50px}
.footer-brand .logo{margin-bottom:16px;font-size:16px}
.footer-brand p{font-size:14px;color:var(--text-2);max-width:330px}
.footer-social{display:flex;gap:10px;margin-top:20px}
.footer-social span{
  font-size:12px;padding:5px 12px;border-radius:6px;
  border:1px solid var(--line);color:var(--text-2);
  transition:border-color .22s var(--ease),color .22s var(--ease);
}
.footer-social span:hover{border-color:var(--line-hot);color:var(--primary)}
.footer-col h4{
  font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--text-3);margin-bottom:16px;
}
.footer-col a{display:block;font-size:14px;color:var(--text-2);padding:6px 0}
.footer-col a:hover{color:var(--primary);transform:translateX(2px)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  border-top:1px solid var(--line);padding:22px 0 26px;font-size:13px;color:var(--text-3);
}
.footer-bottom .num{font-family:var(--mono);letter-spacing:.04em}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .cards-3{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:900px){
  .nav-links{
    display:none;position:absolute;top:100%;left:-24px;right:-24px;
    flex-direction:column;align-items:stretch;gap:2px;
    background:rgba(10,12,11,.98);border-bottom:1px solid var(--line);
    padding:10px 24px 20px;
  }
  .site-header.nav-open .nav-links{display:flex}
  .nav-links a{padding:13px 0;font-size:18px;color:var(--text)}
  .nav-links a::after{left:0;right:auto;width:30px;bottom:8px}
  .nav-toggle{display:inline-flex}
  .nav-cta{display:none}
  .article-body{padding:30px}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .nav-inner{height:62px;gap:16px}
  .logo{font-size:15px}
  .logo small{font-size:8px}
  .page-main{padding:24px 0 72px}
  .article-body{padding:24px;font-size:16px}
  .article-body h2{font-size:22px}
  .cards-3{grid-template-columns:1fr}
  .related{margin-top:56px}
}
@media (max-width:520px){
  .article-title{font-size:28px}
  .crumbs{font-size:12px}
  .crumbs .current{max-width:22ch}
  .article-body{padding:20px;border-radius:var(--radius)}
  .article-actions{flex-direction:column;align-items:flex-start}
  .action-btns{width:100%}
  .action-btns .btn{flex:1}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .back-top{right:16px;bottom:16px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}

/* roulang page: category2 */
:root{
  --ink:#0A0C0B;
  --surface:#131816;
  --surface-2:#1A211E;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --primary:#A8FF35;
  --primary-dim:rgba(168,255,53,.12);
  --primary-ink:#0A0C0B;
  --accent:#FF3D71;
  --accent-2:#FFD166;
  --text:#F2F5F3;
  --text-2:#9AA5A0;
  --text-3:#66706B;
  --r-card:16px;
  --r-lg:20px;
  --r-input:12px;
  --r-badge:6px;
  --r-pill:999px;
  --shadow-1:0 2px 8px rgba(0,0,0,.4);
  --shadow-2:0 24px 60px -20px rgba(0,0,0,.7);
  --ease:cubic-bezier(.22,.61,.36,1);
  --maxw:1240px;
  --font:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --mono:ui-monospace,"Roboto Mono",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--ink);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.9;
  letter-spacing:.005em;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease),border-color .22s var(--ease)}
a:hover{color:var(--primary)}
img{max-width:100%;display:block}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.03em;line-height:1.25}
h1{font-size:clamp(30px,4.2vw,52px)}
h2{font-size:clamp(24px,3vw,36px)}
h3{font-size:clamp(19px,2vw,22px);font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
::selection{background:var(--primary);color:var(--primary-ink)}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--primary);
  margin-bottom:12px;
  font-weight:700;
}
.skip-link{position:absolute;left:-9999px;top:0}
.skip-link:focus{left:16px;top:16px;z-index:999;background:var(--primary);color:var(--primary-ink);padding:8px 16px;border-radius:var(--r-pill)}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(10,12,11,.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";display:block;height:2px;
  background:linear-gradient(90deg,transparent,var(--primary),transparent);
  opacity:.5;
}
.nav-inner{
  display:flex;align-items:center;gap:32px;
  min-height:72px;
}
.logo{
  display:flex;align-items:center;gap:10px;
  font-size:17px;font-weight:800;letter-spacing:-.02em;
  color:var(--text);white-space:nowrap;
}
.logo:hover{color:var(--text)}
.logo small{
  display:block;font-size:9px;letter-spacing:.22em;
  color:var(--text-3);font-weight:600;line-height:1.4;
}
.logo-mark{
  width:22px;height:22px;flex:0 0 22px;border-radius:5px;
  background:linear-gradient(135deg,var(--primary),#4fbf24);
  transform:skewX(-14deg);
  position:relative;
  box-shadow:0 0 0 1px rgba(168,255,53,.35),0 0 18px rgba(168,255,53,.22);
}
.logo-mark::after{
  content:"";position:absolute;left:6px;right:6px;top:6px;height:2px;
  background:var(--ink);border-radius:2px;
}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:auto}
.nav-links a{
  position:relative;
  font-size:15px;color:var(--text-2);font-weight:600;
  padding:6px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--primary);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .28s var(--ease);
}
.nav-links a:hover{color:var(--text)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{
  color:var(--primary);
  text-shadow:0 0 18px rgba(168,255,53,.35);
}
.nav-links a.active::after{
  transform:scaleX(1);
  box-shadow:0 0 12px rgba(168,255,53,.6);
}
.nav-cta{flex:0 0 auto}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);margin-left:auto;position:relative;
}
.nav-toggle i,.nav-toggle i::before,.nav-toggle i::after{
  position:absolute;left:50%;width:18px;height:2px;background:var(--text);
  border-radius:2px;transform:translateX(-50%);transition:all .26s var(--ease);
}
.nav-toggle i{top:50%;margin-top:-1px}
.nav-toggle i::before{content:"";left:0;transform:none;top:-6px}
.nav-toggle i::after{content:"";left:0;transform:none;top:6px}
body.nav-open .nav-toggle i{background:transparent}
body.nav-open .nav-toggle i::before{top:0;transform:rotate(45deg);background:var(--primary)}
body.nav-open .nav-toggle i::after{top:0;transform:rotate(-45deg);background:var(--primary)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 30px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;position:relative;overflow:hidden;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.btn-primary{background:var(--primary);color:var(--primary-ink);box-shadow:0 2px 8px rgba(0,0,0,.4)}
.btn-primary::before{
  content:"";position:absolute;top:0;left:-60%;width:40%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.55),transparent);
  transform:skewX(-18deg);transition:left .45s var(--ease);
}
.btn-primary:hover{color:var(--primary-ink);transform:translateY(-2px);box-shadow:0 14px 30px -12px rgba(168,255,53,.5)}
.btn-primary:hover::before{left:120%}
.btn-ghost{
  background:transparent;color:var(--text);border-color:var(--line-strong);
}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn-text{
  padding:0;border:0;background:none;color:var(--primary);font-weight:700;
}
.btn-text i{display:inline-block;transition:transform .22s var(--ease);font-style:normal}
.btn-text:hover i{transform:translateX(4px)}
.btn-sm{padding:10px 22px;font-size:14px}

/* ---------- Breadcrumb ---------- */
.crumb{padding:28px 0 0;font-size:13px;color:var(--text-3)}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--primary)}
.crumb .sep{margin:0 8px;color:var(--text-3);opacity:.7}
.crumb .now{color:var(--primary);font-weight:600}

/* ---------- Hero ---------- */
.cat-hero{padding:36px 0 56px;position:relative;overflow:hidden}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:
    repeating-linear-gradient(115deg,rgba(255,255,255,.022) 0 1px,transparent 1px 9px),
    radial-gradient(760px 320px at 82% 8%,rgba(168,255,53,.10),transparent 68%);
  pointer-events:none;
}
.cat-hero .container{position:relative}
.cat-hero h1{max-width:16ch}
.cat-hero h1 em{font-style:normal;color:var(--primary)}
.hero-lead{
  margin-top:20px;max-width:46ch;color:var(--text-2);font-size:17px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.anchor-card{
  background:linear-gradient(180deg,rgba(26,33,30,.9),rgba(19,24,22,.9));
  border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--shadow-1);
}
.anchor-card h2{font-size:15px;letter-spacing:.06em;color:var(--text-2);font-weight:700;margin-bottom:16px}
.anchor-chips{display:flex;flex-wrap:wrap;gap:10px}
.anchor-chips a{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(255,255,255,.02);
  font-size:13.5px;color:var(--text-2);font-weight:600;
  transition:all .22s var(--ease);
}
.anchor-chips a span{font-family:var(--mono);font-size:11px;color:var(--text-3)}
.anchor-chips a:hover,.anchor-chips a.is-active{
  color:var(--primary);border-color:rgba(168,255,53,.45);background:var(--primary-dim);
}
.anchor-chips a.is-active span{color:var(--primary)}
.hero-strip{
  display:flex;flex-wrap:wrap;gap:0;margin-top:34px;
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--surface);overflow:hidden;
}
.hero-strip .item{
  flex:1 1 200px;padding:16px 22px;border-right:1px solid var(--line);
}
.hero-strip .item:last-child{border-right:0}
.hero-strip b{display:block;font-family:var(--mono);font-size:22px;color:var(--primary)}
.hero-strip span{font-size:13px;color:var(--text-3)}

.kv-banner{
  width:100%;aspect-ratio:21/8;object-fit:cover;
  border-radius:var(--r-lg);border:1px solid var(--line);
  margin-top:38px;filter:saturate(.92) brightness(.86);
}

/* ---------- Section shell ---------- */
.section{padding:88px 0}
.section-head{max-width:62ch;margin-bottom:36px}
.section-head p{color:var(--text-2);margin-top:14px}

/* ---------- Main body: sticky index + long form ---------- */
.doc-layout{padding:8px 0 96px}
.doc-side{position:sticky;top:100px}
.doc-side h2{font-size:13px;letter-spacing:.18em;text-transform:uppercase;color:var(--text-3);margin-bottom:16px}
.doc-side ol{border-left:1px solid var(--line);padding-left:0}
.doc-side li{border-left:2px solid transparent;margin-left:-1px}
.doc-side a{
  display:block;padding:10px 0 10px 16px;font-size:14px;color:var(--text-2);
  border-left:2px solid transparent;margin-left:-2px;transition:all .22s var(--ease);
}
.doc-side a b{font-family:var(--mono);font-size:11px;color:var(--text-3);margin-right:8px}
.doc-side a:hover{color:var(--text)}
.doc-side a.is-active{
  color:var(--primary);border-left-color:var(--primary);
  background:linear-gradient(90deg,rgba(168,255,53,.10),transparent);
}
.doc-side a.is-active b{color:var(--primary)}
.side-note{
  margin-top:26px;padding:18px;border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--surface);font-size:13px;color:var(--text-3);
}
.side-note strong{display:block;color:var(--text);font-size:14px;margin-bottom:6px}

.doc-body section{
  padding:0 0 52px;margin-bottom:52px;border-bottom:1px solid var(--line);
}
.doc-body section:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0}
.doc-body h2{position:relative;padding-left:20px;margin-bottom:20px}
.doc-body h2::before{
  content:"";position:absolute;left:0;top:.42em;width:8px;height:8px;
  background:var(--primary);border-radius:2px;
}
.doc-body h3{margin:32px 0 12px;color:var(--text)}
.doc-body p{color:var(--text-2);max-width:72ch}
.doc-body p + p{margin-top:1.2em}
.doc-body ul{margin:20px 0 0;max-width:72ch}
.doc-body ul li{
  position:relative;padding-left:20px;color:var(--text-2);margin-bottom:10px;
}
.doc-body ul li::before{
  content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;
  background:var(--primary);border-radius:1px;
}
.doc-body ul li strong{color:var(--text);font-weight:700}
.doc-figure{margin:28px 0 0}
.doc-figure img{
  width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-card);
  border:1px solid var(--line);
}
.doc-figure figcaption{font-size:13px;color:var(--text-3);margin-top:10px}

.metric-grid{display:grid;gap:16px;grid-template-columns:repeat(2,1fr);margin-top:26px}
.metric-item{
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--surface);padding:20px;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.metric-item:hover{transform:translateY(-3px);border-color:rgba(168,255,53,.45);box-shadow:var(--shadow-2)}
.metric-item h4{font-size:15px;color:var(--primary);margin-bottom:8px}
.metric-item p{font-size:14px;color:var(--text-2);max-width:none}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.tag{
  padding:7px 15px;border-radius:var(--r-badge);
  background:var(--primary-dim);border:1px solid rgba(168,255,53,.28);
  color:var(--primary);font-size:13px;font-weight:600;
}
.tag.accent{background:rgba(255,61,113,.12);border-color:rgba(255,61,113,.35);color:var(--accent)}

/* ---------- Compare table ---------- */
.compare{padding:96px 0 0}
.card-panel{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:8px;box-shadow:var(--shadow-1);
}
.cmp-table{width:100%;min-width:0}
.cmp-table th,.cmp-table td{
  padding:18px 20px;text-align:left;font-size:14.5px;
  border-bottom:1px solid var(--line);
}
.cmp-table thead th{
  font-size:13px;letter-spacing:.08em;color:var(--text-3);font-weight:700;
  text-transform:uppercase;
}
.cmp-table tbody tr:last-child td{border-bottom:0}
.cmp-table tbody tr{transition:background .22s var(--ease)}
.cmp-table tbody tr:hover{background:rgba(168,255,53,.04)}
.cmp-table td:first-child{color:var(--text);font-weight:700}
.cmp-table td{color:var(--text-2)}
.cmp-table td.hl{color:var(--primary);font-weight:600}

/* ---------- Timeline ---------- */
.timeline-wrap{padding:96px 0 0}
.tl{position:relative;margin-top:12px;padding-left:34px}
.tl::before{
  content:"";position:absolute;left:9px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,var(--primary),rgba(168,255,53,.05));
}
.tl-item{position:relative;padding:0 0 36px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-33px;top:6px;width:18px;height:18px;
  border-radius:50%;background:var(--ink);border:2px solid var(--primary);
  box-shadow:0 0 0 3px rgba(168,255,53,.12);
}
.tl-item .step{
  font-family:var(--mono);font-size:12px;color:var(--primary);letter-spacing:.16em;
}
.tl-item h3{margin:6px 0 10px}
.tl-item p{color:var(--text-2);max-width:66ch}

/* ---------- FAQ ---------- */
.faq-list{margin-top:8px;border-top:1px solid var(--line)}
.faq-list details{border-bottom:1px solid var(--line)}
.faq-list summary{
  list-style:none;cursor:pointer;position:relative;
  padding:22px 56px 22px 22px;font-size:16.5px;font-weight:700;color:var(--text);
  transition:color .22s var(--ease);
}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary:hover{color:var(--primary)}
.faq-list summary::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:2px;
  background:var(--primary);opacity:0;transition:opacity .26s var(--ease);
}
.faq-list details[open] summary::before{opacity:1}
.faq-list summary::after{
  content:"";position:absolute;right:22px;top:50%;width:16px;height:16px;
  transform:translateY(-50%);border:1px solid var(--line-strong);border-radius:4px;
  background:
    linear-gradient(var(--primary),var(--primary)) center/8px 2px no-repeat,
    linear-gradient(var(--primary),var(--primary)) center/2px 8px no-repeat;
  transition:transform .26s var(--ease),border-color .26s var(--ease);
}
.faq-list details[open] summary::after{
  transform:translateY(-50%) rotate(90deg);border-color:rgba(168,255,53,.45);
  background:linear-gradient(var(--primary),var(--primary)) center/8px 2px no-repeat;
}
.faq-list .answer{padding:0 56px 24px 22px;color:var(--text-2);max-width:72ch}

/* ---------- CTA ---------- */
.cta-band{
  margin-top:96px;border-top:1px solid rgba(168,255,53,.35);
  border-bottom:1px solid var(--line);
  background:
    repeating-linear-gradient(115deg,rgba(255,255,255,.025) 0 1px,transparent 1px 9px),
    linear-gradient(90deg,rgba(26,33,30,.95),rgba(10,12,11,.95));
  padding:56px 0;
}
.cta-band .inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(22px,2.6vw,32px)}
.cta-band p{color:var(--text-2);margin-top:10px;font-size:15px}

/* ---------- Footer ---------- */
.site-footer{
  margin-top:0;border-top:1px solid rgba(168,255,53,.25);
  background:var(--surface);padding:64px 0 0;
}
.footer-grid{
  display:grid;gap:40px;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  padding-bottom:48px;
}
.footer-brand p{color:var(--text-2);font-size:14px;margin-top:16px;max-width:34ch}
.footer-social{display:flex;gap:10px;margin-top:20px}
.footer-social span{
  padding:6px 14px;border-radius:var(--r-badge);font-size:12px;
  border:1px solid var(--line);color:var(--text-3);
}
.footer-col h4{font-size:14px;color:var(--text);margin-bottom:16px;letter-spacing:.04em}
.footer-col a{display:block;font-size:14px;color:var(--text-2);padding:5px 0;transition:all .22s var(--ease)}
.footer-col a:hover{color:var(--primary);transform:translateX(2px)}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);padding:22px 0 28px;
  font-size:13px;color:var(--text-3);
}
.footer-bottom .num{color:var(--text-3)}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .section{padding:72px 0}
  .doc-layout{padding-bottom:72px}
  .doc-side{position:static;margin-bottom:36px}
  .doc-side ol{display:flex;flex-wrap:wrap;gap:8px;border-left:0}
  .doc-side li{margin:0}
  .doc-side a{
    border:1px solid var(--line);border-radius:var(--r-pill);
    padding:8px 14px;background:rgba(255,255,255,.02);
  }
  .doc-side a.is-active{border-color:rgba(168,255,53,.45)}
  .side-note{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:900px){
  .nav-links{
    position:fixed;inset:60px 0 auto 0;
    flex-direction:column;align-items:flex-start;gap:0;
    background:rgba(10,12,11,.97);
    border-bottom:1px solid var(--line);
    padding:8px 24px 24px;
    transform:translateY(-12px);opacity:0;pointer-events:none;
    transition:opacity .26s var(--ease),transform .26s var(--ease);
  }
  body.nav-open .nav-links{opacity:1;transform:none;pointer-events:auto}
  .nav-links a{width:100%;padding:14px 0;font-size:18px;border-bottom:1px solid var(--line)}
  .nav-links a::after{display:none}
  .nav-toggle{display:block}
  .nav-cta{display:none}
  .nav-inner{min-height:60px;gap:16px}
}
@media (max-width:640px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .cat-hero{padding:24px 0 40px}
  .hero-strip .item{flex:1 1 100%;border-right:0;border-bottom:1px solid var(--line)}
  .hero-strip .item:last-child{border-bottom:0}
  .metric-grid{grid-template-columns:1fr}
  .kv-banner{aspect-ratio:16/10}
  .cmp-table thead{display:none}
  .cmp-table tr{
    display:block;border:1px solid var(--line);border-radius:var(--r-card);
    margin-bottom:14px;padding:6px 0;background:var(--surface-2);
  }
  .cmp-table td{
    display:flex;justify-content:space-between;gap:16px;
    border-bottom:1px dashed var(--line);padding:12px 18px;
  }
  .cmp-table td:last-child{border-bottom:0}
  .cmp-table td::before{
    content:attr(data-label);color:var(--text-3);font-size:13px;flex:0 0 auto;
  }
  .faq-list summary{padding:18px 48px 18px 16px;font-size:15.5px}
  .faq-list .answer{padding:0 48px 20px 16px}
  .cta-band .inner{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr;gap:32px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important}
  .btn:hover,.metric-item:hover{transform:none}
}