/* roulang page: index */
:root{
  --bg:#070B1A;
  --bg-deep:#050813;
  --purple:#7C4DFF;
  --purple-light:#B06BFF;
  --green:#3ED9A0;
  --text:#E9EEFB;
  --muted:rgba(233,238,251,.62);
  --line:rgba(255,255,255,.12);
  --line-strong:rgba(255,255,255,.2);
  --glass:rgba(255,255,255,.06);
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --pad-x:20px;
  --max:1200px;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol,dl,dd{margin:0;padding:0;list-style:none}
h1,h2,h3,p,figure{margin:0}
[hidden]{display:none!important}
:focus-visible{outline:2px solid var(--purple);outline-offset:3px}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 var(--pad-x)}
.glass{
  position:relative;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  backdrop-filter:blur(14px) saturate(140%);
}
.glass::before{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);
  pointer-events:none;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:48px;padding:0 24px;border-radius:999px;
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--purple),var(--purple-light));
  color:#fff;box-shadow:0 0 24px rgba(124,77,255,.55);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 32px rgba(124,77,255,.82)}
.btn-primary:active{transform:translateY(-1px)}
.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,.24);color:var(--text)}
.btn-ghost:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.4)}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  min-height:36px;padding:0 14px;border-radius:999px;
  font-size:13px;color:var(--muted);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  transition:color .2s,border-color .2s,background .2s;
}
.chip.is-on,.chip:hover{color:var(--text);border-color:rgba(124,77,255,.65);background:rgba(124,77,255,.16)}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:8px;font-size:12px;
  background:rgba(124,77,255,.16);color:#CBBAFF;
  border:1px solid rgba(124,77,255,.3);
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 10px;border-radius:8px;
  font-size:12px;font-weight:600;
}
.badge-green{background:rgba(62,217,160,.14);color:var(--green);border:1px solid rgba(62,217,160,.34)}
.badge-purple{background:rgba(124,77,255,.18);color:#CBBAFF;border:1px solid rgba(124,77,255,.36)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,11,26,.78);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;height:64px;gap:12px}
.brand{display:flex;align-items:center;gap:10px;margin-right:auto;font-weight:700;font-size:17px;letter-spacing:.02em}
.brand-mark{
  position:relative;width:28px;height:28px;border-radius:9px;
  background:linear-gradient(135deg,var(--purple),var(--purple-light));
  box-shadow:0 0 16px rgba(124,77,255,.55);
  flex:0 0 auto;
}
.brand-mark::after{
  content:"";position:absolute;left:50%;top:50%;
  transform:translate(-40%,-50%);
  border-left:9px solid #fff;
  border-top:5px solid transparent;
  border-bottom:5px solid transparent;
}
.nav-toggle{
  display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:0 10px;border-radius:12px;
  border:1px solid var(--line);
}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--text);transition:opacity .2s}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
#siteNav{
  position:fixed;left:0;right:0;top:64px;bottom:0;z-index:55;
  display:flex;flex-direction:column;gap:2px;
  padding:16px var(--pad-x) 32px;
  background:rgba(5,8,19,.97);
  backdrop-filter:blur(18px);
  transform:translateX(100%);
  visibility:hidden;
  transition:transform .3s ease,visibility .3s ease;
  overflow-y:auto;
}
#siteNav.open{transform:none;visibility:visible}
.nav-link{
  display:flex;align-items:center;min-height:52px;
  font-size:17px;font-weight:600;color:var(--muted);
  border-bottom:1px solid var(--line);
  transition:color .2s;
}
.nav-link:hover,.nav-link.active{color:var(--text)}
.nav-cta{margin-top:20px;width:100%}
.header-cta{display:none}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:48px 0 40px}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.26}
.hero-overlay{
  position:absolute;inset:0;
  background:
    radial-gradient(65% 60% at 82% 8%,rgba(124,77,255,.34),transparent 68%),
    radial-gradient(55% 55% at 6% 92%,rgba(62,217,160,.16),transparent 70%),
    linear-gradient(180deg,rgba(7,11,26,.62) 0%,rgba(7,11,26,.92) 62%,var(--bg) 100%);
}
.hero-inner{position:relative;z-index:1}
.hero h1{
  margin-top:16px;
  font-size:clamp(2.2rem,5vw,3.6rem);
  font-weight:700;
  line-height:1.22;
  letter-spacing:-.01em;
}
.hero-sub{margin-top:16px;font-size:16px;color:var(--muted);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-facts{margin-top:18px;font-size:13px;color:rgba(233,238,251,.55)}
.hero-zone{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:30px;padding-top:22px;border-top:1px solid var(--line);
}
.zone-title{font-size:13px;color:var(--muted);letter-spacing:.08em;margin-right:4px}
.zone{
  display:inline-flex;align-items:center;gap:8px;
  min-height:44px;padding:0 16px;border-radius:999px;
  background:var(--glass);border:1px solid var(--line);
  font-size:14px;transition:border-color .2s,box-shadow .2s,transform .2s;
}
.zone em{font-style:normal;font-family:var(--mono);font-size:12px;color:var(--green)}
.zone:hover{border-color:rgba(124,77,255,.65);box-shadow:0 0 18px rgba(124,77,255,.35);transform:translateY(-2px)}

/* ---------- section base ---------- */
.section{padding:56px 0;position:relative}
.section-deep{background:var(--bg-deep)}
.section-head{max-width:700px;margin-bottom:26px}
.section-head h2{font-size:clamp(1.5rem,3vw,2.25rem);font-weight:700;line-height:1.32;letter-spacing:-.01em}
.section-head p{margin-top:10px;font-size:15px;color:var(--muted)}

/* ---------- pain ---------- */
.pain-grid{display:grid;grid-template-columns:1fr;gap:14px}
.pain-card{padding:22px;border-radius:var(--r-md);transition:border-color .2s,transform .2s}
.pain-card:hover{border-color:var(--line-strong);transform:translateY(-2px)}
.pain-ico{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:rgba(124,77,255,.18);border:1px solid rgba(124,77,255,.34);
  color:#CBBAFF;font-family:var(--mono);font-size:14px;font-weight:700;margin-bottom:14px;
}
.pain-card h3{font-size:1.0625rem;font-weight:600;line-height:1.5}
.pain-card p{margin-top:8px;font-size:14px;color:var(--muted)}

/* ---------- index ---------- */
.index-wrap{display:grid;grid-template-columns:1fr;gap:18px}
.index-aside{padding:18px 20px;border-radius:var(--r-md)}
.aside-title{font-size:12px;letter-spacing:.14em;color:var(--muted);margin-bottom:10px}
.index-aside li+li{margin-top:4px}
.index-aside a{display:block;padding:9px 10px;border-radius:9px;font-size:14px;color:var(--muted);transition:background .2s,color .2s}
.index-aside a:hover{background:rgba(124,77,255,.16);color:var(--text)}
.index-list{display:grid;gap:10px}
.index-row{
  display:grid;grid-template-columns:1fr auto;
  align-items:center;gap:6px 12px;
  padding:16px 18px;border-radius:var(--r-md);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  transition:border-color .2s,background .2s,transform .2s;
}
.index-row:hover{border-color:rgba(124,77,255,.6);background:rgba(124,77,255,.1);transform:translateX(3px)}
.index-row strong{font-size:15px;font-weight:600}
.index-row span{grid-column:1;font-size:13px;color:var(--muted)}
.index-row .row-meta{grid-column:2;grid-row:1/3;display:flex;align-items:center;gap:10px;font-family:var(--mono);font-size:12px;color:var(--green)}
.index-row .row-meta::after{content:"›";font-size:18px;color:var(--muted)}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:1fr;gap:14px;position:relative}
.step{padding:22px;border-radius:var(--r-md)}
.step-num{font-family:var(--mono);font-size:13px;font-weight:700;color:var(--purple-light);letter-spacing:.14em}
.step h3{margin-top:8px;font-size:1.0625rem;font-weight:600}
.step p{margin-top:8px;font-size:14px;color:var(--muted)}
.step .badge{margin-top:14px}

/* ---------- split ---------- */
.split{display:grid;grid-template-columns:1fr;gap:18px;align-items:center}
.split-img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-md);border:1px solid var(--line)}
.split-text h3{font-size:1.125rem;font-weight:600}
.split-text p{margin-top:10px;font-size:15px;color:var(--muted)}
.tick-list{margin-top:14px;display:grid;gap:8px}
.tick-list li{position:relative;padding-left:20px;font-size:14px;color:var(--muted)}
.tick-list li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:2px;background:var(--green);opacity:.85}
.highlight-bar{
  margin:22px 0;
  padding:16px 20px;border-radius:var(--r-md);
  background:rgba(62,217,160,.09);
  border:1px solid rgba(62,217,160,.28);
  border-left:3px solid var(--green);
  font-size:14px;color:#CFF5E7;
}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.stat{padding:20px;border-radius:var(--r-md);text-align:left}
.stat b{display:block;font-family:var(--mono);font-size:clamp(1.8rem,4vw,2.4rem);font-weight:700;line-height:1.1;color:#fff}
.stat span{display:block;margin-top:8px;font-size:13px;color:var(--muted)}
.stat i{font-style:normal;font-size:.5em;color:var(--green);margin-left:2px}

/* ---------- posters ---------- */
.filters{display:flex;gap:8px;overflow-x:auto;padding-bottom:12px;margin-bottom:16px;scrollbar-width:none}
.filters::-webkit-scrollbar{display:none}
.poster-grid{
  display:grid;grid-auto-flow:column;grid-auto-columns:74%;
  gap:14px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding-bottom:10px;scrollbar-width:none;
}
.poster-grid::-webkit-scrollbar{display:none}
.poster{scroll-snap-align:start;border-radius:var(--r-md);overflow:hidden;transition:border-color .2s,transform .2s}
.poster:hover{border-color:var(--line-strong);transform:translateY(-3px)}
.poster-media{position:relative;aspect-ratio:2/3;overflow:hidden;background:#0B1024}
.poster-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.poster:hover .poster-media img{transform:scale(1.03)}
.poster-tag{
  position:absolute;left:10px;top:10px;
  height:24px;padding:0 9px;border-radius:7px;
  display:inline-flex;align-items:center;
  font-size:12px;font-weight:600;
  background:rgba(5,8,19,.78);color:var(--green);
  border:1px solid rgba(62,217,160,.4);
  backdrop-filter:blur(6px);
}
.poster-body{padding:14px}
.poster-body h3{font-size:15px;font-weight:600;line-height:1.45}
.poster-body p{
  margin-top:6px;font-size:13px;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.tag-row{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}

/* ---------- infobox ---------- */
.info-wrap{display:grid;grid-template-columns:1fr;gap:20px}
.infobox{padding:22px;border-radius:var(--r-md)}
.infobox h3{font-size:1.0625rem;font-weight:700}
.kv{margin-top:14px;display:grid;gap:0}
.kv>div{display:grid;grid-template-columns:88px 1fr;gap:10px;padding:9px 0;border-top:1px solid var(--line);font-size:13px}
.kv>div:first-child{border-top:0}
.kv dt{color:var(--muted)}
.kv dd{color:var(--text)}
.updated{margin-top:12px;font-size:12px;color:rgba(233,238,251,.45)}
.info-body h3{font-size:1.0625rem;font-weight:600;margin-bottom:12px}
.info-body p{font-size:15px;color:var(--muted);margin-bottom:14px}
.info-body p b{color:var(--text);font-weight:600;border-bottom:1px dashed rgba(124,77,255,.6);padding-bottom:1px}
.see-also{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.see-also a{
  display:inline-flex;align-items:center;min-height:40px;padding:0 14px;
  border-radius:999px;font-size:13px;color:var(--muted);
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  transition:color .2s,border-color .2s;
}
.see-also a:hover{color:var(--green);border-color:rgba(62,217,160,.5)}

/* ---------- accordion ---------- */
.acc{display:grid;gap:10px}
.acc-item{border-radius:var(--r-md);background:var(--glass);border:1px solid var(--line);overflow:hidden}
.acc-head{
  width:100%;display:flex;align-items:center;gap:12px;
  min-height:56px;padding:14px 18px;text-align:left;
  font-size:15px;font-weight:600;
}
.acc-num{font-family:var(--mono);font-size:12px;color:var(--purple-light);flex:0 0 auto}
.acc-ico{margin-left:auto;width:10px;height:10px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:rotate(45deg) translateY(-2px);transition:transform .28s ease;flex:0 0 auto}
.acc-item.open .acc-ico{transform:rotate(225deg) translateY(-2px)}
.acc-body{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s ease}
.acc-body>div{overflow:hidden}
.acc-item.open .acc-body{grid-template-rows:1fr}
.acc-body p{margin:0;padding:0 18px 18px 42px;font-size:14px;color:var(--muted);border-left:3px solid rgba(124,77,255,.6);margin-left:18px;padding-left:14px}

/* ---------- quotes ---------- */
.quotes{display:grid;grid-template-columns:1fr;gap:14px}
.quote{
  padding:20px 20px 20px 22px;border-radius:var(--r-md);
  border-left:3px solid rgba(124,77,255,.7);
}
.quote p{font-size:15px;line-height:1.75;color:rgba(233,238,251,.86)}
.quote-user{display:flex;align-items:center;gap:10px;margin-top:16px}
.avatar{
  width:38px;height:38px;border-radius:50%;flex:0 0 auto;
  background:linear-gradient(135deg,rgba(124,77,255,.7),rgba(62,217,160,.55));
  border:1px solid rgba(255,255,255,.2);
}
.quote-user b{display:block;font-size:14px;font-weight:600}
.quote-user span{display:block;font-size:12px;color:var(--muted)}

/* ---------- people ---------- */
.people{display:grid;grid-template-columns:1fr;gap:14px}
.person{padding:20px;border-radius:var(--r-md)}
.person h3{font-size:1.0625rem;font-weight:600}
.person p{margin-top:8px;font-size:14px;color:var(--muted)}
.person-ico{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:rgba(62,217,160,.14);border:1px solid rgba(62,217,160,.3);
  color:var(--green);font-family:var(--mono);font-size:13px;margin-bottom:12px;
}

/* ---------- compare table ---------- */
.cmp-table{width:100%;font-size:14px}
.cmp-table,.cmp-table tbody,.cmp-table tr,.cmp-table td{display:block}
.cmp-table thead{display:none}
.cmp-table tr{
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:10px 14px;margin-bottom:10px;
}
.cmp-table td{padding:5px 0;display:flex;gap:12px;font-size:14px}
.cmp-table td::before{content:attr(data-label);flex:0 0 84px;color:var(--muted);font-size:13px}

/* ---------- metrics ---------- */
.metrics-wrap{display:grid;grid-template-columns:1fr;gap:20px;align-items:center}
.chart-card{padding:20px;border-radius:var(--r-md)}
.chart-card .chart-title{font-size:13px;color:var(--muted);margin-bottom:14px}
.bar-chart{width:100%;height:auto}
.bar-chart rect{fill:url(#barGrad);rx:4}
.bar-chart .axis{fill:rgba(233,238,251,.35);font-size:8px;font-family:var(--mono)}
.metric-list{display:grid;gap:16px}
.metric b{font-family:var(--mono);font-size:1.5rem;font-weight:700;color:#fff}
.metric span{display:block;font-size:13px;color:var(--muted);margin-top:4px}
.progress{height:6px;border-radius:999px;background:rgba(255,255,255,.1);margin-top:10px;overflow:hidden}
.progress i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--purple),var(--green))}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:24px}
.timeline::before{content:"";position:absolute;left:5px;top:8px;bottom:8px;width:2px;background:linear-gradient(180deg,var(--purple),rgba(62,217,160,.35))}
.tl-item{position:relative;padding-bottom:22px;display:grid;grid-template-columns:1fr;gap:10px}
.tl-item::before{content:"";position:absolute;left:-24px;top:9px;width:12px;height:12px;border-radius:50%;background:var(--purple);border:2px solid var(--bg);box-shadow:0 0 10px rgba(124,77,255,.8)}
.tl-date{font-family:var(--mono);font-size:12px;color:var(--green)}
.tl-body h3{font-size:15px;font-weight:600}
.tl-body p{margin-top:6px;font-size:13px;color:var(--muted)}
.tl-thumb{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-sm);border:1px solid var(--line)}
.tl-more{display:inline-flex;align-items:center;min-height:44px;font-size:14px;color:var(--purple-light);margin-left:0}
.tl-more:hover{color:var(--green)}

/* ---------- final cta ---------- */
.cta-card{
  position:relative;overflow:hidden;border-radius:22px;
  padding:36px 22px;text-align:center;
  background:
    radial-gradient(70% 90% at 50% 0%,rgba(124,77,255,.3),transparent 70%),
    rgba(255,255,255,.05);
  border:1px solid rgba(124,77,255,.4);
  box-shadow:0 0 40px rgba(124,77,255,.22) inset;
}
.cta-card h2{font-size:clamp(1.5rem,3vw,2.1rem);font-weight:700;line-height:1.32}
.cta-card p{margin:14px auto 0;max-width:560px;font-size:15px;color:var(--muted)}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:26px}
.cta-note{margin-top:16px;font-size:12px;color:rgba(233,238,251,.45)}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-deep);border-top:1px solid var(--line);padding:44px 0 24px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:28px}
.footer-brand p{margin-top:12px;font-size:13px;color:var(--muted);max-width:300px}
.footer-col h3{font-size:13px;letter-spacing:.1em;color:rgba(233,238,251,.5);font-weight:600;margin-bottom:12px}
.footer-col li+li{margin-top:2px}
.footer-col a{display:inline-flex;align-items:center;min-height:36px;font-size:14px;color:var(--muted);transition:color .2s}
.footer-col a:hover{color:var(--green)}
.footer-bottom{
  margin-top:32px;padding-top:18px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:8px 16px;
  font-size:12px;color:rgba(233,238,251,.45);
}

/* ---------- breakpoints ---------- */
@media (min-width:520px){
  .pain-grid{grid-template-columns:1fr 1fr}
  .pain-card.wide{grid-column:1/-1}
  .stats{grid-template-columns:repeat(4,1fr)}
  .poster-grid{grid-auto-columns:46%}
  .cmp-table{display:table;width:100%;border-collapse:collapse}
  .cmp-table thead{display:table-header-group}
  .cmp-table tbody{display:table-row-group}
  .cmp-table tr{display:table-row;background:transparent;border:0;padding:0;margin:0}
  .cmp-table th{
    text-align:left;font-size:12px;font-weight:600;color:rgba(233,238,251,.65);
    padding:12px 14px;background:rgba(255,255,255,.06);
    border-bottom:1px solid var(--line);white-space:nowrap;
  }
  .cmp-table td{display:table-cell;padding:14px;border-top:1px solid var(--line);white-space:nowrap}
  .cmp-table td::before{display:none}
  .cmp-table tbody tr:nth-child(odd){background:rgba(255,255,255,.03)}
  .cmp-table tbody tr:hover{background:rgba(124,77,255,.1)}
  .tl-item{grid-template-columns:1fr 120px;align-items:start}
}
@media (min-width:768px){
  .section{padding:72px 0}
  .hero{padding:64px 0 52px}
  .split{grid-template-columns:1fr 1fr;gap:26px}
  .split.reverse .split-img{order:2}
  .poster-grid{grid-auto-flow:row;grid-template-columns:repeat(2,1fr);gap:16px;overflow:visible}
  .quotes{grid-template-columns:1fr 1fr}
  .people{grid-template-columns:1fr 1fr}
  .info-wrap{grid-template-columns:1fr}
  .metrics-wrap{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-card{padding:52px 32px}
}
@media (min-width:1024px){
  .container{padding:0 32px}
  .section{padding:100px 0}
  .header-cta{display:inline-flex}
  .nav-toggle{display:none}
  #siteNav{
    position:static;left:auto;right:auto;top:auto;bottom:auto;
    flex-direction:row;align-items:center;gap:2px;
    background:none;backdrop-filter:none;padding:0;
    transform:none;visibility:visible;overflow:visible;
    margin-left:auto;margin-right:10px;
  }
  .nav-link{
    min-height:auto;font-size:14px;padding:8px 12px;border-radius:9px;border-bottom:0;
    position:relative;
  }
  .nav-link.active{color:#fff}
  .nav-link.active::after{
    content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;border-radius:2px;
    background:linear-gradient(90deg,var(--purple),var(--purple-light));
    box-shadow:0 0 10px rgba(124,77,255,.8);
  }
  .nav-cta{display:none}
  .index-wrap{grid-template-columns:250px 1fr;gap:24px;align-items:start}
  .index-aside{position:sticky;top:88px}
  .steps{grid-template-columns:repeat(3,1fr);gap:18px}
  .steps::before{
    content:"";position:absolute;left:12%;right:12%;top:52px;height:1px;
    background:linear-gradient(90deg,rgba(124,77,255,.6),rgba(62,217,160,.55),rgba(124,77,255,.6));
    box-shadow:0 0 12px rgba(124,77,255,.5);
  }
  .stats{grid-template-columns:repeat(4,1fr)}
  .poster-grid{grid-template-columns:repeat(4,1fr)}
  .info-wrap{grid-template-columns:1fr 2fr;gap:26px}
  .quotes{grid-template-columns:repeat(3,1fr);align-items:start}
  .quote:nth-child(2){margin-top:22px}
  .quote:nth-child(3){margin-top:8px}
  .people{grid-template-columns:1.15fr 1fr;grid-template-rows:repeat(3,auto);gap:16px}
  .people .person-lg{grid-row:1/4;display:flex;flex-direction:column;justify-content:center}
  .metrics-wrap{grid-template-columns:1.4fr 1fr;gap:32px}
  .footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
  .tl-item{grid-template-columns:1fr 160px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important}
}

/* roulang page: index */
:root{
  --bg-0:#0A0A14;
  --surface:#12101F;
  --surface-2:#17142A;
  --brand:#8B5CF6;
  --brand-deep:#5B21B6;
  --brand-light:#C084FC;
  --accent:#35E0C8;
  --warm:#FF7A45;
  --text:#EDEAF7;
  --text-2:#A9A4C2;
  --text-3:#6F6A8A;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.04);
  --glass-line:rgba(168,85,247,.18);
  --glass-line-hi:rgba(168,85,247,.55);
  --r-lg:16px;
  --r-md:12px;
  --r-sm:6px;
  --shadow:0 18px 44px rgba(0,0,0,.45);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:15px;
  line-height:1.75;
  color:var(--text);
  background-color:var(--bg-0);
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:24px 24px;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(900px 620px at 6% -8%,rgba(139,92,246,.18),transparent 62%),
    radial-gradient(760px 520px at 102% 104%,rgba(53,224,200,.10),transparent 62%);
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
section{scroll-margin-top:96px}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 24px;position:relative;z-index:1}
.num{font-variant-numeric:tabular-nums}

/* 页头 */
.site-header{position:sticky;top:0;z-index:60;background:rgba(10,10,20,.62);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);transition:background .25s ease}
.site-header.scrolled{background:rgba(10,10,20,.86);backdrop-filter:blur(16px)}
.nav{display:flex;align-items:center;gap:28px;height:76px;transition:height .25s ease}
.site-header.scrolled .nav{height:62px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:28px;height:28px;color:var(--brand-light);flex:0 0 auto}
.brand-text{font-size:18px;font-weight:800;letter-spacing:-.01em}
.brand-sub{font-size:12px;color:var(--text-3);padding-left:10px;border-left:1px solid var(--line);white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:22px;margin-left:auto}
.main-nav a{font-size:14px;color:var(--text-2);transition:color .2s ease;padding:6px 0}
.main-nav a:hover{color:var(--text)}
.main-nav a.active{color:var(--brand-light)}
.nav-right{display:flex;align-items:center;gap:12px}
.search-box{display:flex;align-items:center;gap:8px;height:38px;padding:0 14px;border-radius:999px;background:rgba(255,255,255,.04);border:1px solid var(--line);transition:border-color .2s ease}
.search-box:focus-within{border-color:var(--glass-line-hi)}
.search-box svg{width:16px;height:16px;color:var(--text-3);flex:0 0 auto}
.search-box input{width:158px;border:none;background:transparent;color:var(--text);font-size:13px;outline:none}
.search-box input::placeholder{color:var(--text-3)}
.menu-btn{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.04);align-items:center;justify-content:center;flex-direction:column;gap:4px;cursor:pointer}
.menu-btn span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-2)}
.menu-btn:focus-visible{outline:2px solid var(--brand-light);outline-offset:2px}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 24px;border-radius:999px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,border-color .2s ease,background .2s ease}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-deep));color:#fff;box-shadow:0 0 0 1px rgba(168,85,247,.35),0 8px 28px rgba(139,92,246,.38)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(168,85,247,.5),0 12px 38px rgba(139,92,246,.52)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(168,85,247,.35),0 6px 18px rgba(139,92,246,.3)}
.btn-ghost{background:var(--glass);border-color:var(--glass-line);color:var(--text);backdrop-filter:blur(14px)}
.btn-ghost:hover{border-color:var(--glass-line-hi);transform:translateY(-1px)}
.btn:focus-visible{outline:2px solid var(--brand-light);outline-offset:3px}
.nav-cta{min-height:38px;padding:0 20px;font-size:14px}

/* 标签与徽章 */
.tag{display:inline-block;padding:3px 10px;border-radius:var(--r-sm);font-size:12px;line-height:1.7;background:rgba(139,92,246,.12);color:var(--brand-light);border:1px solid rgba(139,92,246,.22)}
.tag-accent{background:rgba(53,224,200,.12);color:var(--accent);border-color:rgba(53,224,200,.24)}
.tag-warm{background:rgba(255,122,69,.14);color:var(--warm);border-color:rgba(255,122,69,.26)}
.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--r-sm);font-size:12px;background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-2);font-variant-numeric:tabular-nums}

/* 章节锚点条 */
.anchorbar{position:relative;z-index:2;background:rgba(18,16,31,.74);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}
.anchorbar ul{display:flex;gap:4px;overflow-x:auto;-ms-overflow-style:none;scrollbar-width:none}
.anchorbar ul::-webkit-scrollbar{display:none}
.anchorbar li{flex:0 0 auto}
.anchorbar a{display:inline-block;padding:13px 16px;font-size:13px;color:var(--text-3);border-bottom:2px solid transparent;white-space:nowrap;transition:color .2s ease,border-color .2s ease}
.anchorbar a:hover,.anchorbar a.active{color:var(--brand-light);border-bottom-color:var(--brand)}

/* 首屏 */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.26}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,10,20,.62),rgba(10,10,20,.96) 78%)}
.hero-inner{padding-top:84px;padding-bottom:72px;position:relative;z-index:1}
.region-tags{display:flex;flex-wrap:wrap;gap:10px}
.hero h1{font-size:46px;line-height:1.24;margin-top:22px;max-width:17em}
.hero-lead{margin-top:20px;max-width:660px;color:var(--text-2);font-size:16px;line-height:1.85}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.nearby{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:30px}
.nearby-label{font-size:13px;color:var(--text-3);margin-right:4px}
.nearby a{padding:6px 15px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--text-2);font-size:13px;transition:color .2s ease,border-color .2s ease,transform .2s ease}
.nearby a:hover{border-color:var(--glass-line-hi);color:var(--text);transform:translateY(-1px)}
.hero-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}

/* 通用板块 */
.section{padding:96px 0}
.section-alt{background:linear-gradient(180deg,rgba(23,20,42,.55),rgba(10,10,20,0))}
.sec-head{max-width:680px;margin-bottom:38px}
.sec-head h2{font-size:30px}
.eyebrow{display:inline-block;font-size:12px;letter-spacing:.1em;color:var(--accent);margin-bottom:14px}
.sec-sub{margin-top:12px;color:var(--text-2);font-size:15px}
.glass{background:var(--glass);border:1px solid var(--glass-line);border-radius:var(--r-lg);backdrop-filter:blur(14px);transition:border-color .25s ease,transform .25s ease}
.glass:hover{border-color:var(--glass-line-hi);transform:translateY(-2px)}
.thumb{position:relative;overflow:hidden;border-radius:var(--r-md);background:linear-gradient(135deg,#241640,#101a33)}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.thumb-16x9{aspect-ratio:16/9}
.thumb-1x1{aspect-ratio:1/1}
.thumb-3x2{aspect-ratio:3/2}
.card:hover .thumb img,.topic-card:hover .thumb img,.topic-large:hover .thumb img{transform:scale(1.03)}

/* 痛点 */
.pain-grid{display:grid;grid-template-columns:300px 1fr;gap:48px;align-items:start}
.pain-list{display:grid;grid-template-columns:1fr 1fr;gap:0 32px}
.pain-item{display:flex;gap:14px;padding:22px 0;border-top:1px solid var(--line)}
.pain-item:nth-child(-n+2){border-top:none;padding-top:6px}
.pain-ico{flex:0 0 auto;width:36px;height:36px;border-radius:10px;display:grid;place-items:center;background:rgba(139,92,246,.1);border:1px solid rgba(139,92,246,.2);color:var(--brand-light)}
.pain-ico svg{width:20px;height:20px}
.pain-item h3{font-size:16px;font-weight:700}
.pain-item p{margin-top:6px;font-size:14px;color:var(--text-2);line-height:1.7}

/* 方案 Bento */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.bento-main{grid-column:span 8;padding:24px}
.bento-main h3{margin-top:20px;font-size:20px}
.bento-side{grid-column:span 4;display:grid;gap:24px;align-content:start}
.bento-card{padding:22px}
.bento-card h3{font-size:18px;margin-top:12px}
.bento-card p{margin-top:10px;font-size:14px;color:var(--text-2)}
.num-badge{display:inline-block;font-size:12px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;letter-spacing:.06em}
.ticks{margin-top:14px;display:grid;gap:10px}
.ticks li{position:relative;padding-left:22px;font-size:14px;color:var(--text-2);line-height:1.7}
.ticks li::before{content:"";position:absolute;left:0;top:9px;width:10px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--brand),var(--accent))}

/* 步骤 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{position:relative;padding-right:12px}
.step-num{width:56px;height:56px;border-radius:50%;display:grid;place-items:center;font-weight:700;font-size:18px;color:var(--brand-light);background:rgba(139,92,246,.08);border:1px solid rgba(168,85,247,.45);box-shadow:0 0 0 4px rgba(139,92,246,.08),0 0 24px rgba(139,92,246,.3);font-variant-numeric:tabular-nums}
.step:not(:last-child)::after{content:"";position:absolute;top:28px;left:56px;right:0;border-top:1px dashed rgba(168,85,247,.35)}
.step h3{margin-top:20px;font-size:18px}
.step p{margin-top:8px;font-size:14px;color:var(--text-2);line-height:1.7}

/* 数据指标卡 */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{position:relative;padding:26px 22px 22px;overflow:hidden}
.stat::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--brand),var(--accent))}
.stat-num{font-size:40px;font-weight:800;line-height:1;font-variant-numeric:tabular-nums;letter-spacing:-.02em;background:linear-gradient(135deg,var(--brand-light),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}
.stat-num span{font-size:14px;font-weight:600;-webkit-text-fill-color:var(--text-2);color:var(--text-2);margin-left:4px}
.stat p{margin-top:14px;font-size:13px;color:var(--text-2);line-height:1.7}

/* 专题矩阵 */
.topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.topic-large{grid-column:span 2;grid-row:span 2;padding:18px;display:flex;flex-direction:column}
.topic-large .topic-body{margin-top:auto;padding-top:18px}
.topic-card{padding:16px;display:flex;flex-direction:column}
.topic-card h3{margin-top:14px;font-size:16px}
.topic-body h3{font-size:20px}
.tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.more-link{display:inline-flex;align-items:center;gap:6px;margin-top:26px;font-size:14px;color:var(--brand-light);transition:gap .2s ease,color .2s ease}
.more-link:hover{gap:12px;color:var(--accent)}

/* 信息框 */
.info-wrap{display:grid;grid-template-columns:5fr 7fr;gap:32px;align-items:start}
.infobox{background:var(--glass);border:1px solid var(--glass-line);border-radius:var(--r-lg);overflow:hidden;backdrop-filter:blur(14px)}
.infobox-title{padding:14px 18px;font-size:15px;font-weight:700;border-bottom:1px solid var(--line);background:rgba(139,92,246,.08)}
.info-table{width:100%;border-collapse:collapse}
.info-table tr{border-bottom:1px solid var(--line)}
.info-table tr:last-child{border-bottom:none}
.info-table th{width:40%;text-align:left;padding:12px 18px;font-size:13px;font-weight:500;color:var(--text-2);background:rgba(255,255,255,.05)}
.info-table td{padding:12px 18px;font-size:13px;color:var(--text)}
.feature-list{display:grid;gap:2px}
.feature-item{display:flex;gap:14px;padding:16px 14px;border-radius:var(--r-md);border:1px solid transparent;transition:transform .2s ease,background .2s ease,border-color .2s ease}
.feature-item:hover{transform:translateX(4px);background:rgba(255,255,255,.035);border-color:var(--glass-line)}
.feature-ico{flex:0 0 auto;width:36px;height:36px;border-radius:10px;display:grid;place-items:center;background:rgba(53,224,200,.1);border:1px solid rgba(53,224,200,.22);color:var(--accent)}
.feature-ico svg{width:20px;height:20px}
.feature-item h3{font-size:16px}
.feature-item p{margin-top:4px;font-size:14px;color:var(--text-2);line-height:1.7}

/* 卡住点 */
.stuck{display:grid;grid-template-columns:1fr 1fr;gap:18px 28px}
.stuck-item{padding:20px 22px;border-left:2px solid rgba(168,85,247,.4);background:rgba(255,255,255,.025);border-radius:0 var(--r-md) var(--r-md) 0;transition:border-color .2s ease,background .2s ease}
.stuck-item:hover{border-left-color:var(--brand);background:rgba(139,92,246,.06)}
.stuck-item h3{font-size:16px}
.stuck-item p{margin-top:6px;font-size:14px;color:var(--text-2);line-height:1.7}

/* 适用人群 */
.aud-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.aud{padding:22px;border-left:3px solid rgba(139,92,246,.45);background:rgba(255,255,255,.025);border-radius:0 var(--r-md) var(--r-md) 0;transition:border-color .2s ease,background .2s ease,transform .2s ease}
.aud:hover{border-left-color:var(--accent);background:rgba(53,224,200,.05);transform:translateY(-2px)}
.aud h3{font-size:17px}
.aud p{margin-top:8px;font-size:14px;color:var(--text-2);line-height:1.7}

/* 评价 */
.review-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.review{padding:24px;position:relative}
.review-quote{position:absolute;top:14px;right:20px;font-size:44px;line-height:1;color:rgba(139,92,246,.28);font-family:Georgia,serif}
.review p{font-size:14px;color:var(--text-2);line-height:1.8;position:relative;z-index:1}
.review-meta{display:flex;align-items:center;gap:12px;margin-top:18px}
.avatar{width:38px;height:38px;border-radius:50%;background:linear-gradient(135deg,var(--brand),#2b1d55);border:1px solid rgba(168,85,247,.4);display:grid;place-items:center;font-size:13px;font-weight:700;color:#fff;flex:0 0 auto}
.review-meta strong{font-size:14px;display:block}
.review-meta span{font-size:12px;color:var(--text-3)}

/* 对照 */
.compare{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.compare-col{padding:24px;transition:background .2s ease,border-color .2s ease}
.compare-col:hover{background:rgba(139,92,246,.07);border-color:var(--glass-line-hi)}
.compare-col h3{font-size:18px;display:flex;align-items:center;gap:10px}
.compare-col h3 svg{width:22px;height:22px;color:var(--brand-light)}
.compare-rows{margin-top:18px;display:grid;gap:12px}
.compare-row{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:14px;color:var(--text-2);padding-bottom:12px;border-bottom:1px solid var(--line)}
.compare-row:last-child{border-bottom:none;padding-bottom:0}
.mark-yes{color:var(--accent);font-weight:700}
.mark-no{color:var(--text-3)}

/* 攻略目录 */
.guide-list{display:grid;grid-template-columns:1fr 1fr;gap:0 40px}
.guide-link{display:flex;align-items:flex-start;gap:16px;padding:20px 0;border-bottom:1px solid var(--line);transition:transform .2s ease}
.guide-link:hover{transform:translateX(4px)}
.guide-no{font-variant-numeric:tabular-nums;font-size:13px;font-weight:700;color:var(--brand-light);flex:0 0 auto;padding-top:3px}
.guide-link h3{font-size:16px}
.guide-link p{margin-top:6px;font-size:13px;color:var(--text-2);line-height:1.7}
.guide-arrow{margin-left:auto;color:var(--text-3);flex:0 0 auto;padding-top:2px;transition:color .2s ease,transform .2s ease}
.guide-link:hover .guide-arrow{color:var(--brand-light);transform:translateX(4px)}

/* 术语 */
.term-list{display:grid;grid-template-columns:1fr 1fr;gap:18px 40px}
.term-list li{font-size:14px;line-height:1.8;color:var(--text-2)}
.term-list strong{color:var(--text);font-weight:700}
.term-list .extra{display:none}
.term-list.expanded .extra{display:block}
.term-toggle{margin-top:24px}

/* 版本时间轴 */
.timeline{position:relative;padding-left:88px;display:grid;gap:26px}
.timeline::before{content:"";position:absolute;left:60px;top:10px;bottom:10px;border-left:1px dashed rgba(168,85,247,.32)}
.tl-item{position:relative}
.tl-ver{position:absolute;left:-88px;top:0;width:66px;text-align:center;font-size:12px;font-weight:700;font-variant-numeric:tabular-nums;color:var(--brand-light);border:1px solid rgba(168,85,247,.32);background:rgba(139,92,246,.1);border-radius:var(--r-sm);padding:4px 0}
.tl-item h3{font-size:16px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.tl-date{font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums}
.tl-item ul{margin-top:8px;display:grid;gap:5px}
.tl-item li{font-size:14px;color:var(--text-2);padding-left:14px;position:relative;line-height:1.7}
.tl-item li::before{content:"";position:absolute;left:0;top:10px;width:5px;height:5px;border-radius:50%;background:var(--brand)}

/* 资讯 */
.news-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:24px}
.news-card{padding:16px;display:flex;flex-direction:column}
.news-card h3{margin-top:16px;font-size:17px;line-height:1.5}
.news-meta{display:flex;align-items:center;gap:10px;margin-top:14px;font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums}
.news-card .thumb-3x2{aspect-ratio:3/2}

/* 指标条 */
.board{padding:32px}
.board-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px 40px}
.bar-item h3{font-size:14px;font-weight:600;color:var(--text-2)}
.bar-track{margin-top:10px;height:8px;border-radius:999px;background:rgba(255,255,255,.07);overflow:hidden}
.bar-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand),var(--accent));width:0;transition:width 1s ease}
.bar-value{margin-top:8px;font-size:13px;font-variant-numeric:tabular-nums;color:var(--accent)}

/* FAQ */
.faq{display:grid;gap:12px}
.faq-item{border:1px solid var(--line);border-radius:var(--r-md);background:rgba(255,255,255,.03);overflow:hidden;transition:border-color .2s ease}
.faq-item[open]{border-color:var(--glass-line-hi);border-left:3px solid var(--brand)}
.faq-item summary{list-style:none;cursor:pointer;padding:16px 20px;font-size:15px;font-weight:600;display:flex;align-items:center;gap:12px;transition:color .2s ease}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand-light)}
.faq-item summary:focus-visible{outline:2px solid var(--brand-light);outline-offset:-2px}
.faq-icon{margin-left:auto;flex:0 0 auto;color:var(--text-3);transition:transform .25s ease,color .25s ease}
.faq-item[open] .faq-icon{transform:rotate(90deg);color:var(--brand-light)}
.faq-body{padding:0 20px 18px;font-size:14px;color:var(--text-2);line-height:1.8}

/* CTA 与表单 */
.cta-wrap{display:grid;grid-template-columns:1.1fr 1fr;gap:28px;align-items:start}
.cta-card{padding:36px}
.cta-card h2{font-size:30px}
.cta-card p{margin-top:14px;font-size:15px;color:var(--text-2);line-height:1.85}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.form-card{padding:28px}
.form-card h3{font-size:18px}
.field{display:grid;gap:8px;margin-top:16px}
.field:first-of-type{margin-top:18px}
.field label{font-size:13px;color:var(--text-2)}
.field input,.field select,.field textarea{width:100%;min-height:44px;padding:0 14px;border-radius:10px;border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--text);font-size:14px;font-family:inherit;outline:none;transition:border-color .2s ease,box-shadow .2s ease}
.field textarea{min-height:120px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(139,92,246,.25)}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--text-3) 50%),linear-gradient(135deg,var(--text-3) 50%,transparent 50%);background-position:calc(100% - 20px) 19px,calc(100% - 14px) 19px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.form-submit{width:100%;margin-top:20px}

/* 页脚 */
.site-footer{position:relative;z-index:1;border-top:1px solid var(--line);background:rgba(18,16,31,.7);padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--text-2);line-height:1.8;max-width:300px}
.footer-col h4{font-size:14px;color:var(--text);margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--text-2);transition:color .2s ease}
.footer-col a:hover{color:var(--brand-light)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;margin-top:48px;padding-top:22px;border-top:1px solid var(--line);font-size:12px;color:var(--text-3)}

/* 抽屉 */
.drawer{position:fixed;inset:0;z-index:120;visibility:hidden;pointer-events:none}
.drawer.open{visibility:visible;pointer-events:auto}
.drawer-mask{position:absolute;inset:0;background:rgba(6,6,12,.68);opacity:0;transition:opacity .25s ease}
.drawer.open .drawer-mask{opacity:1}
.drawer-panel{position:absolute;top:0;right:0;height:100%;width:330px;max-width:90%;padding:24px;overflow-y:auto;display:flex;flex-direction:column;gap:20px;background:rgba(18,16,31,.94);backdrop-filter:blur(18px);border-left:1px solid var(--glass-line);transform:translateX(100%);transition:transform .28s ease}
.drawer.open .drawer-panel{transform:none}
.drawer-close{align-self:flex-end;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.05);color:var(--text-2);font-size:20px;line-height:1;cursor:pointer}
.drawer-nav{display:grid;gap:4px}
.drawer-nav a{padding:12px 4px;font-size:15px;color:var(--text-2);border-bottom:1px solid var(--line);transition:color .2s ease}
.drawer-nav a:hover{color:var(--brand-light)}
.drawer-note{font-size:12px;color:var(--text-3);margin-top:auto}

@media (max-width:1024px){
  .main-nav{display:none}
  .search-box{display:none}
  .menu-btn{display:flex}
  .hero h1{font-size:40px}
  .pain-grid{grid-template-columns:1fr;gap:28px}
  .bento-main{grid-column:span 12}
  .bento-side{grid-column:span 12;grid-template-columns:1fr 1fr}
  .info-wrap{grid-template-columns:1fr;gap:26px}
  .topic-grid{grid-template-columns:repeat(2,1fr)}
  .topic-large{grid-column:span 2;grid-row:auto}
  .aud-grid{grid-template-columns:repeat(2,1fr)}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:1fr 1fr}
  .news-card:first-child{grid-column:span 2}
  .cta-wrap{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .section{padding:64px 0}
  .hero-inner{padding-top:60px;padding-bottom:56px}
  .hero h1{font-size:32px}
  .hero-lead{font-size:15px}
  .sec-head h2{font-size:26px}
  .brand-sub{display:none}
  .nav{height:66px;gap:14px}
  .pain-list{grid-template-columns:1fr}
  .pain-item:nth-child(-n+2){border-top:1px solid var(--line);padding-top:22px}
  .pain-item:first-child{border-top:none;padding-top:6px}
  .bento-side{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr;gap:0}
  .step{display:grid;grid-template-columns:56px 1fr;column-gap:18px;padding:0 0 28px 0}
  .step:not(:last-child)::after{content:"";position:absolute;left:27px;top:58px;bottom:0;right:auto;border-top:none;border-left:1px dashed rgba(168,85,247,.35)}
  .step h3{margin-top:8px;grid-column:2}
  .step p{grid-column:2;margin-top:6px}
  .stuck{grid-template-columns:1fr}
  .aud-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .compare{grid-template-columns:1fr}
  .guide-list{grid-template-columns:1fr}
  .term-list{grid-template-columns:1fr}
  .board-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .news-card:first-child{grid-column:span 1}
  .footer-grid{grid-template-columns:1fr}
  .board{padding:24px}
  .cta-card{padding:26px}
  .form-card{padding:22px}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .hero h1{font-size:30px}
  .hero-actions .btn{width:100%}
  .cta-actions .btn{width:100%}
  .topic-grid{grid-template-columns:1fr}
  .topic-large{grid-column:span 1}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .stat-num{font-size:32px}
  .timeline{padding-left:0}
  .timeline::before{display:none}
  .tl-ver{position:static;width:auto;display:inline-block;margin-bottom:10px}
  .sec-head h2{font-size:23px}
  .cta-card h2{font-size:24px}
  .footer-bottom{flex-direction:column;gap:8px}
}