/* Pagoda · 视觉系统 —— Noir 朱砂 × 玉青 × 鎏金 */
:root{
  --bg0:#080A0F;
  --bg1:#0D1118;
  --bg2:#121824;
  --panel:rgba(255,255,255,.022);
  --ink:#F1EEE6;
  --ink-soft:#D6D2C7;
  --muted:#9AA4B4;
  --faint:#626C7C;
  --line:rgba(255,255,255,.085);
  --line-soft:rgba(255,255,255,.05);
  --cin:#FF5A36;   --cin-soft:#FFB4A0;
  --jad:#36CC8C;   --jad-soft:#A5E7C9;
  --gold:#E8BC5C;  --gold-soft:#F3DFB0;
  --vio:#8F7FF2;   --vio-soft:#C9BFF8;
  --sky:#54C1EE;   --sky-soft:#A8DDF6;
  --serif:"Fraunces","Noto Serif SC","Iowan Old Style","Georgia","Songti SC","STSong","SimSun",serif;
  --sans:"Inter","Noto Sans SC","Segoe UI","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --mono:"JetBrains Mono","SFMono-Regular","Cascadia Code","Consolas","Menlo",monospace;
  --radius:16px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg0);color:var(--ink);
  font-family:var(--sans);font-size:16px;line-height:1.7;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
/* 背景：细网格 + 双色辉光 */
body::before{
  content:"";position:fixed;inset:0;z-index:-2;
  background:
    radial-gradient(900px 560px at 12% -8%, rgba(255,90,54,.13), transparent 60%),
    radial-gradient(1000px 620px at 100% 8%, rgba(54,204,140,.10), transparent 55%),
    radial-gradient(800px 600px at 50% 110%, rgba(143,127,242,.08), transparent 60%),
    var(--bg0);
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size:52px 52px;
  mask-image:radial-gradient(1200px 900px at 50% 0%, rgba(0,0,0,.9), transparent 75%);
  -webkit-mask-image:radial-gradient(1200px 900px at 50% 0%, rgba(0,0,0,.9), transparent 75%);
}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
::selection{background:rgba(255,90,54,.28);color:#fff}

.wrap{width:min(1180px, calc(100% - 48px));margin-inline:auto}
.page{display:none}
.page.active{display:block;animation:pageIn .5s ease both}
@keyframes pageIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* ---------------- 顶栏 ---------------- */
.topbar{
  position:sticky;top:0;z-index:50;
  background:rgba(8,10,15,.72);backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid var(--line-soft);
}
.topbar-inner{display:flex;align-items:center;gap:22px;height:64px}
.brand{display:flex;align-items:center;gap:11px;flex:none}
.brand-mark{width:28px;height:28px;filter:drop-shadow(0 0 10px rgba(124,92,255,.42))}
.brand-name{font-family:var(--serif);font-weight:650;font-size:19px;letter-spacing:.05em;background:linear-gradient(90deg,#C4B5FD,#67E8F9);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav{display:flex;gap:2px;margin-left:8px;flex:1}
.nav-link{
  padding:7px 13px;border-radius:10px;font-size:14px;color:var(--muted);
  transition:.18s ease;border:1px solid transparent;cursor:pointer;
}
.nav-link:hover{color:var(--ink);background:rgba(255,255,255,.04)}
.nav-link.active{color:var(--ink);background:rgba(255,255,255,.06);border-color:var(--line)}
.nav-actions{display:flex;gap:9px;align-items:center}
.search-btn{
  display:flex;align-items:center;gap:9px;padding:7px 12px 7px 12px;
  border-radius:11px;border:1px solid var(--line);background:rgba(255,255,255,.03);
  color:var(--muted);font-size:13.5px;cursor:pointer;transition:.18s ease;
}
.search-btn:hover{border-color:var(--line);color:var(--ink);background:rgba(255,255,255,.06)}
.search-btn .kbd{font-family:var(--mono);font-size:11px;color:var(--faint);border:1px solid var(--line);border-radius:6px;padding:1px 6px;background:rgba(255,255,255,.03)}
.gh-link{
  display:inline-flex;align-items:center;gap:7px;padding:7px 12px;border-radius:10px;
  font-size:13.5px;font-family:var(--mono);color:var(--ink-soft);
  border:1px solid var(--line);transition:.18s ease;
}
.gh-link:hover{color:var(--cin);border-color:rgba(255,90,54,.4)}

/* ---------------- 通用排版 ---------------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;font-family:var(--mono);
  font-size:12.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);
  padding:7px 13px;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.02);
}
.eyebrow .d{width:7px;height:7px;border-radius:50%;background:var(--cin);box-shadow:0 0 12px var(--cin)}
.section-title{font-family:var(--serif);font-weight:560;line-height:1.16;letter-spacing:-.01em;margin:18px 0 14px;font-size:clamp(25px,3.6vw,42px)}
.section-sub{color:var(--muted);font-size:17px;max-width:640px;margin:0}
.accent{color:var(--cin)}
.accent.jade{color:var(--jad)}
.accent.gold{color:var(--gold)}
.accent.vio{color:var(--vio)}
.lead{color:var(--ink-soft);font-size:17.5px;line-height:1.78;max-width:680px}
.muted{color:var(--muted)}
.mono{font-family:var(--mono)}

/* ---------------- Hero ---------------- */
.hero{position:relative;padding:74px 0 34px;overflow:hidden}
.hero-glow{position:absolute;width:300px;height:300px;border-radius:50%;pointer-events:none;filter:blur(70px);background:radial-gradient(circle, rgba(255,90,54,.28), transparent 70%);z-index:0;transition:transform .05s linear;left:0;top:0}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:44px;align-items:center;position:relative;z-index:1}
.hero-kicker{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:26px}
.pill{font-family:var(--mono);font-size:12px;letter-spacing:.06em;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:6px 12px;background:rgba(255,255,255,.02)}
.pill b{color:var(--ink-soft);font-weight:500}
.hero-title{font-family:var(--serif);font-weight:560;font-size:clamp(34px,4.6vw,58px);line-height:1.06;letter-spacing:-.02em;margin:0 0 24px}
.hero-title .hs{position:relative;white-space:nowrap}
.hero-title .hs::after{content:"";position:absolute;left:2%;bottom:4px;width:96%;height:.36em;background:linear-gradient(90deg,rgba(255,90,54,.30),rgba(255,90,54,.05));z-index:-1;border-radius:2px}
.hero-title .big{display:block;font-size:.78em;color:var(--ink-soft)}
.hero-sub{color:var(--muted);font-size:18px;line-height:1.8;max-width:520px;margin:0 0 30px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:9px;padding:12px 20px;border-radius:12px;font-size:15px;font-weight:500;border:1px solid transparent;cursor:pointer;transition:.18s ease}
.btn-primary{background:linear-gradient(180deg,var(--cin),#E8471F);color:#120704;box-shadow:0 14px 34px -12px rgba(255,90,54,.55)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 18px 40px -12px rgba(255,90,54,.7)}
.btn-ghost{border-color:var(--line);color:var(--ink-soft);background:rgba(255,255,255,.02)}
.btn-ghost:hover{border-color:rgba(255,255,255,.22);color:var(--ink);background:rgba(255,255,255,.05)}
.btn .arr{transition:transform .18s ease}
.btn:hover .arr{transform:translateX(3px)}
.hero-fig{position:relative;display:flex;justify-content:center}
.tower{width:min(360px,80%);filter:drop-shadow(0 30px 60px rgba(0,0,0,.5))}
.tick-strip{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px}
.tick{font-family:var(--mono);font-size:12.5px;color:var(--muted);border:1px solid var(--line);border-radius:8px;padding:6px 11px;background:rgba(255,255,255,.015)}
.tick b{color:var(--jad);font-weight:500}
.tick.g b{color:var(--gold)}

/* stats ledger */
.stat-strip{display:grid;grid-template-columns:repeat(5,1fr);gap:1px;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin-top:66px;background:var(--line)}
.stat{background:var(--bg1);padding:22px 20px;position:relative}
.stat .num{font-family:var(--serif);font-size:clamp(26px,3vw,34px);font-weight:540;line-height:1}
.stat .num small{font-size:.46em;color:var(--muted);margin-left:2px;font-family:var(--mono)}
.stat .lab{font-size:12.5px;color:var(--muted);margin-top:8px;letter-spacing:.01em}
.stat:nth-child(1) .num{color:var(--cin)}
.stat:nth-child(2) .num{color:var(--jad)}
.stat:nth-child(3) .num{color:var(--gold)}
.stat:nth-child(4) .num{color:var(--sky)}
.stat:nth-child(5) .num{color:var(--vio)}

/* ---------------- 区块间距 ---------------- */
.section{padding:84px 0}
.section.tight{padding:52px 0}
.section-head{max-width:760px;margin-bottom:40px}

/* ---------------- 三柱关系（pagoda / sglang / laya） ---------------- */
.triad{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.pillar{position:relative;padding:26px 24px;border:1px solid var(--line);border-radius:var(--radius);background:linear-gradient(180deg,var(--panel),transparent);overflow:hidden}
.pillar::before{content:"";position:absolute;left:0;top:0;width:100%;height:2px;background:var(--pc, var(--cin));opacity:.8}
.pillar .p-k{font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.pillar h3{font-family:var(--serif);font-weight:560;font-size:26px;margin:10px 0 8px}
.pillar p{color:var(--muted);font-size:14.5px;margin:0 0 16px}
.pillar .p-tags{display:flex;flex-wrap:wrap;gap:7px}
.pillar .p-tags span{font-family:var(--mono);font-size:11px;color:var(--ink-soft);border:1px solid var(--line);border-radius:7px;padding:3px 8px;background:rgba(255,255,255,.02)}

/* ---------------- 关系流程图 ---------------- */
.rel-flow{display:flex;flex-wrap:wrap;align-items:center;gap:14px;justify-content:center;padding:18px 0}
.rel-node{border:1px solid var(--line);border-radius:14px;padding:16px 20px;background:var(--bg1);min-width:180px;text-align:center}
.rel-node .r-k{font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:var(--faint);text-transform:uppercase}
.rel-node .r-t{font-family:var(--serif);font-size:21px;font-weight:560;margin:6px 0 2px}
.rel-node .r-s{font-size:13px;color:var(--muted)}
.rel-node.hot{border-color:rgba(255,90,54,.5);box-shadow:inset 0 1px 0 rgba(255,90,54,.25), 0 18px 44px -22px rgba(255,90,54,.55)}
.rel-arrow{color:var(--faint);font-family:var(--mono);font-size:22px;flex:none}
.rel-arrow.vert{writing-mode:vertical-rl}
.rel-cap{text-align:center;font-family:var(--mono);font-size:12px;color:var(--faint);margin-top:6px}

/* ---------------- 特性瓦片 ---------------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.tile{padding:24px;border:1px solid var(--line);border-radius:var(--radius);background:linear-gradient(180deg,rgba(255,255,255,.025),rgba(255,255,255,.005));transition:.22s ease;position:relative}
.tile:hover{transform:translateY(-3px);border-color:rgba(255,255,255,.16)}
.tile .ico{width:40px;height:40px;border-radius:11px;display:grid;place-items:center;margin-bottom:16px;font-family:var(--mono);font-size:18px;border:1px solid var(--line);background:rgba(255,255,255,.03)}
.tile .t-k{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--faint)}
.tile h3{font-family:var(--serif);font-weight:560;font-size:22px;margin:8px 0 8px;line-height:1.25}
.tile p{color:var(--muted);font-size:14.5px;margin:0}
.tile .value{margin-top:16px;font-size:13.5px;color:var(--ink-soft);border-top:1px dashed var(--line-soft);padding-top:14px}
.tile .value b{color:var(--jad);font-weight:500}
.tile.cin .value b{color:var(--cin)}
.tile.gold .value b{color:var(--gold)}

/* callout / honest */
.callout{border:1px solid var(--line);border-left:3px solid var(--gold);border-radius:14px;padding:22px 24px;background:rgba(232,188,92,.04);margin-top:34px}
.callout h4{font-family:var(--serif);font-weight:560;margin:0 0 10px;font-size:19px;color:var(--gold-soft)}
.callout ul{margin:0;padding-left:18px;color:var(--muted);font-size:14.5px}
.callout li{margin:6px 0}

/* ---------------- 架构 ---------------- */
.arch{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:28px}
.arch-box{border:1px solid var(--line);border-radius:14px;padding:18px 16px;background:var(--bg1);position:relative}
.arch-box .a-k{font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--faint);text-transform:uppercase}
.arch-box .a-t{font-size:16.5px;font-weight:600;margin-top:7px}
.arch-box .a-f{font-size:12.5px;color:var(--muted);margin-top:6px;font-family:var(--mono)}
.arch-box.core{border-color:rgba(255,90,54,.4)}
.arch-box.cache{border-color:rgba(54,204,140,.34)}
.arch-box.serve{border-color:rgba(143,127,242,.34)}
.mod-table{width:100%;border-collapse:collapse;margin-top:26px;font-size:14px}
.mod-table th,.mod-table td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line-soft)}
.mod-table th{font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--faint);font-weight:500}
.mod-table td:first-child{font-family:var(--mono);font-size:13.5px;color:var(--ink-soft)}
.mod-table td:nth-child(2){color:var(--muted)}
.mod-table td:last-child{color:var(--faint);font-size:13px}

/* ---------------- 文档检索页 ---------------- */
.docs-head{display:flex;flex-wrap:wrap;align-items:flex-end;gap:20px;justify-content:space-between;margin-bottom:30px}
.filter-bar{display:flex;flex-wrap:wrap;gap:9px;margin:26px 0 8px}
.chip{display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.02);color:var(--muted);font-size:13.5px;cursor:pointer;transition:.18s ease}
.chip:hover{color:var(--ink);border-color:rgba(255,255,255,.2)}
.chip.on{color:var(--ink);border-color:rgba(255,255,255,.28);background:rgba(255,255,255,.06)}
.chip-dot{width:7px;height:7px;border-radius:50%}
.group{margin-top:38px}
.group-head{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.group-dot{width:9px;height:9px;border-radius:50%}
.group-title{font-family:var(--serif);font-weight:560;font-size:22px;margin:0;letter-spacing:.01em}
.group-count{font-family:var(--mono);font-size:12px;color:var(--faint);border:1px solid var(--line);border-radius:999px;padding:2px 9px}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.card{border:1px solid var(--line);border-radius:14px;padding:20px;background:linear-gradient(180deg,rgba(255,255,255,.025),rgba(255,255,255,.004));cursor:pointer;transition:.2s ease;display:flex;flex-direction:column}
.card:hover{border-color:rgba(255,255,255,.18);transform:translateY(-2px)}
.card-chrome{display:flex;align-items:center;gap:8px;font-family:var(--mono);font-size:11px;color:var(--faint);margin-bottom:12px}
.card-dot{width:7px;height:7px;border-radius:50%}
.card-bucket{letter-spacing:.08em}
.card-min{margin-left:auto}
.card-title{font-family:var(--serif);font-weight:560;font-size:19px;line-height:1.3;margin:0 0 6px}
.card-en{font-family:var(--mono);font-size:12px;color:var(--faint);margin-bottom:10px}
.card-blurb{color:var(--muted);font-size:14px;margin:0 0 14px;line-height:1.6}
.kw{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto}
.kw-i{font-family:var(--mono);font-size:11px;color:var(--faint);border:1px solid var(--line-soft);border-radius:7px;padding:2px 7px;background:rgba(255,255,255,.015)}
.card-detail{display:none;margin-top:14px;border-top:1px solid var(--line-soft);padding-top:14px}
.card.open .card-detail{display:block;animation:detailIn .22s ease}
@keyframes detailIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}
.points{margin:0 0 12px;padding-left:18px;color:var(--ink-soft);font-size:13.5px}
.points li{margin:5px 0}
.codeblock{border:1px solid var(--line);border-radius:11px;overflow:hidden;background:#07090D;margin:10px 0}
.codehead{display:flex;align-items:center;justify-content:space-between;padding:7px 12px;border-bottom:1px solid var(--line-soft);font-family:var(--mono);font-size:11px;color:var(--faint)}
.copy-btn{font-family:var(--mono);font-size:11px;color:var(--muted);background:none;border:1px solid var(--line);border-radius:7px;padding:2px 9px;cursor:pointer;transition:.15s}
.copy-btn:hover{color:var(--ink);border-color:rgba(255,255,255,.25)}
.codeblock pre{margin:0;padding:13px 14px;overflow-x:auto;font-family:var(--mono);font-size:12.5px;line-height:1.65;color:var(--jad-soft)}
.note{margin:12px 0 0;font-size:13.5px;color:var(--ink-soft);display:flex;gap:9px;align-items:flex-start}
.note-tag{flex:none;font-family:var(--mono);font-size:11px;color:var(--gold);border:1px solid rgba(232,188,92,.35);border-radius:7px;padding:2px 8px;background:rgba(232,188,92,.07);margin-top:2px}
.empty{color:var(--muted);text-align:center;padding:60px 20px;font-size:15px}

/* ---------------- 搜索浮层 ---------------- */
.overlay{position:fixed;inset:0;z-index:100;background:rgba(5,7,11,.78);backdrop-filter:blur(10px);display:none;align-items:flex-start;justify-content:center;padding:9vh 20px 40px}
.overlay.open{display:flex;animation:oIn .18s ease}
@keyframes oIn{from{opacity:0}to{opacity:1}}
.overlay .panel{width:min(720px,100%);background:var(--bg1);border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:0 40px 100px -30px rgba(0,0,0,.8)}
.overlay .search-row{display:flex;align-items:center;gap:12px;padding:16px 18px;border-bottom:1px solid var(--line)}
.overlay .search-row .mag{color:var(--cin);font-size:18px}
.overlay .search-input{flex:1;background:none;border:none;outline:none;color:var(--ink);font-size:18px;font-family:var(--sans)}
.overlay .search-input::placeholder{color:var(--faint)}
.search-count{padding:10px 18px;font-size:12.5px;color:var(--faint);font-family:var(--mono);border-bottom:1px solid var(--line-soft)}
.overlay .results{max-height:58vh;overflow-y:auto}
.result{display:flex;gap:14px;align-items:flex-start;padding:14px 18px;border-bottom:1px solid var(--line-soft);cursor:pointer;transition:.14s}
.result:hover{background:rgba(255,255,255,.035)}
.result-l{width:9px;height:9px;border-radius:50%;margin-top:7px;flex:none}
.result-main{flex:1;min-width:0}
.result-title{font-family:var(--serif);font-weight:560;font-size:16.5px}
.result-blurb{color:var(--muted);font-size:13.5px;margin-top:3px}
.result-bucket{font-family:var(--mono);font-size:11px;color:var(--faint);flex:none;margin-top:4px}

/* ---------------- 页脚 ---------------- */
.footer{border-top:1px solid var(--line);margin-top:80px;padding:46px 0 60px}
.footer-inner{display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between;align-items:center}
.footer .brand{opacity:.9}
.footer-note{color:var(--faint);font-size:13px;max-width:560px;line-height:1.7}
.footer-note a{color:var(--muted);text-decoration:underline;text-underline-offset:3px}
.footer-note a:hover{color:var(--ink)}

/* ---------------- 进入动画 ---------------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease, transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* ---------------- 响应式 ---------------- */
@media(max-width:1020px){
  .hero-grid{grid-template-columns:1fr;gap:10px}
  .hero-fig{display:none}
  .stat-strip{grid-template-columns:repeat(2,1fr);margin-top:50px}
  .stat:nth-child(5){grid-column:1/-1}
  .triad,.grid-3{grid-template-columns:1fr 1fr}
  .card-grid{grid-template-columns:1fr 1fr}
  .arch{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:680px){
  .nav{display:none}
  .triad,.grid-3,.grid-2,.card-grid,.arch{grid-template-columns:1fr}
  .docs-head{flex-direction:column;align-items:flex-start}
  .section{padding:56px 0}
  .search-btn span.t{display:none}
}
.tile.cap{cursor:pointer}

/* benchmark table */
.bench-table td{font-family:var(--mono);font-size:13.5px}
.bench-table td:first-child{font-family:inherit;font-size:14px}
.bench-table td.win{color:var(--jad);font-weight:600}