:root{
  --wax:#d7ad58;--wax-light:#edce82;--wax-dark:#ad7537;--ink:#17120c;
  --cut:#5d371f;--ice:#bcecff;--green:#6ca95d;--night:#080a0e;
  --paper:#e5bd68;--max:1240px;--mono:Consolas,"Courier New",monospace;
  --sans:"Microsoft YaHei","PingFang SC","Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:132px}
body{margin:0;background:var(--wax);color:var(--ink);font-family:var(--sans);line-height:1.75;overflow-x:hidden}
body::before{content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;background:
  repeating-linear-gradient(7deg,rgba(68,38,18,.035) 0 1px,transparent 1px 7px),
  radial-gradient(circle at 18% 10%,rgba(255,244,180,.35),transparent 34%),
  linear-gradient(90deg,rgba(80,42,14,.08),transparent 16%,transparent 84%,rgba(80,42,14,.08))}
body::after{content:"";position:fixed;inset:8px;z-index:999;pointer-events:none;border:2px solid rgba(22,15,8,.75)}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input{font:inherit}
.wrap{width:min(var(--max),calc(100% - 48px));margin:auto}
.site-header{height:64px;position:sticky;top:0;z-index:100;background:rgba(33,24,14,.96);color:#ffe6a3;border-bottom:2px solid #000}
.nav{height:100%;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{display:flex;align-items:center;gap:10px;font-weight:900;letter-spacing:.02em}
.brand img{width:32px;height:32px;object-fit:contain;border:1px solid #f5ca70;background:var(--wax-light)}
.official{font:700 10px var(--mono);letter-spacing:.12em;color:#06141b;background:var(--ice);padding:3px 7px;border:1px solid #000}
.navlinks{margin-left:auto;display:flex;align-items:center;gap:28px;font-size:14px}
.navlinks a{border-bottom:1px solid transparent}
.navlinks a:hover{color:var(--ice);border-color:var(--ice)}
.work-btn,.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 22px;border:2px solid #100d09;background:#fff;color:#111;font-weight:900;box-shadow:4px 4px 0 #111;transition:.18s}
.work-btn:hover,.btn:hover{transform:translate(-1px,-1px);box-shadow:6px 6px 0 #111}
.btn.ghost{background:transparent;color:var(--ink);box-shadow:none}
.btn.dark{background:#16120d;color:#ffe9ad}
.btn.ice{background:var(--ice)}
.menu-toggle{display:none;background:var(--wax-light);border:1px solid #000;padding:7px 10px;font-weight:900}
.hero{padding:76px 0 88px;border-bottom:3px solid #15100b}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.status{display:inline-flex;align-items:center;gap:9px;border:1px solid #23170d;padding:5px 12px;background:rgba(245,211,129,.55);font:700 12px var(--mono)}
.status i{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 0 3px rgba(108,169,93,.2)}
h1,h2,h3,p{margin-top:0}
.hero h1{font-size:clamp(38px,5vw,62px);line-height:1.08;font-weight:900;letter-spacing:-.04em;margin:22px 0}
.ice-text{color:#1b5065;text-shadow:1px 1px 0 var(--ice)}
.lead{font-size:17px;max-width:650px;color:#402817}
.actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.strike{color:#6a4026;text-decoration:line-through 2px;text-decoration-color:#4e2a15}
.scratch-sign{margin-top:28px;font:italic 700 14px Georgia,serif;color:#5d351e;transform:rotate(-1.5deg)}
.console{border:3px solid #0c0b09;background:#100f0c;color:#f7d783;box-shadow:12px 12px 0 rgba(57,32,15,.35)}
.console-top{height:46px;border-bottom:1px solid #745631;display:flex;align-items:center;gap:8px;padding:0 16px;font:700 12px var(--mono)}
.dot{width:10px;height:10px;border-radius:50%;background:#b0643c}.dot:nth-child(2){background:#cfad54}.dot:nth-child(3){background:#69a163}
.console-title{margin-left:8px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.console-cover{position:relative;aspect-ratio:16/10;overflow:hidden;background:#17140e}
.console-cover img{width:100%;height:100%;object-fit:cover;filter:sepia(.35) contrast(1.08)}
.console-cover::after{content:"R1 // REASONING";position:absolute;left:18px;bottom:16px;padding:5px 9px;background:#100f0c;border:1px solid #f7d783;font:700 11px var(--mono)}
.console-status{padding:13px 16px;border-top:1px solid #745631;font:12px var(--mono);display:flex;justify-content:space-between}
.console-status b{color:#9fe183}
.anchorbar{position:sticky;top:64px;z-index:90;background:rgba(219,176,88,.95);border-bottom:2px solid #181009}
.anchor-inner{height:68px;display:grid;grid-template-columns:240px 1fr;gap:24px;align-items:center}
.anchor-title{border-left:5px solid #17110b;padding-left:13px;font-weight:900}
.anchor-links{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.anchor-links a{text-align:center;border:1px solid #1c130b;padding:7px 10px;background:rgba(246,209,125,.45);font-size:13px;font-weight:800}
.anchor-links a:hover{background:#17120c;color:#f6d986}
.section{padding:88px 0;border-bottom:2px solid rgba(30,19,10,.8);scroll-margin-top:132px}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:38px}
.eyebrow{font:800 12px var(--mono);letter-spacing:.16em;text-transform:uppercase;color:#63381d}
.section h2{font-size:clamp(28px,4vw,42px);line-height:1.15;margin:8px 0;font-weight:900}
.section-note{max-width:520px;color:#604027}
.spec-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:2px solid #16100b;border-left:2px solid #16100b}
.spec{min-height:260px;padding:25px;border-right:2px solid #16100b;border-bottom:2px solid #16100b;background:rgba(244,204,116,.28);transition:.2s}
.spec:hover{transform:translateY(-2px);background:rgba(255,226,151,.55);box-shadow:inset 0 0 0 2px #fff1be}
.spec small{font:700 11px var(--mono);color:#6c4026}.spec h3{font-size:22px;margin:45px 0 12px}.spec p{font-size:14px;color:#553720}
.dark-section{background:var(--night);color:#efd080;border-color:#000}
.dark-section .eyebrow,.dark-section .section-note{color:#ad8c55}
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.scene{border:1px solid #8b6b3f;padding:23px;background:#0d0f13;min-height:220px}
.scene-icon{width:42px;height:42px;border:1px solid #d5ad63;display:grid;place-items:center;font:700 18px var(--mono);margin-bottom:32px}
.scene h3{color:#ffe3a2;margin-bottom:8px}.scene p{color:#a99168;font-size:14px}
.rack{border-top:2px solid #16100b}
.rack-row{position:relative;display:grid;grid-template-columns:260px 1fr 240px;align-items:center;min-height:116px;border-bottom:2px solid #16100b;background:rgba(248,211,128,.23)}
.rack-row.featured{border-left:5px solid #0d4f68;background:rgba(188,236,255,.18)}
.rack-model,.rack-spec,.rack-action{padding:20px 24px}
.rack-model strong{display:block;font-size:20px}.rack-model small,.rack-spec{color:#654128}
.rack-action{border-left:1px solid #714a2a;display:flex;align-items:center;justify-content:space-between;gap:16px}
.rack-action b{font:900 20px var(--mono)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.media-frame{border:2px solid #17110b;padding:10px;background:#e6b95f;box-shadow:9px 9px 0 rgba(59,33,14,.28);transform:rotate(-.35deg)}
.media-frame img{width:100%;aspect-ratio:16/10;object-fit:cover;filter:sepia(.22) saturate(.85)}
.steps{counter-reset:step;display:grid;gap:0;border-top:2px solid #1a120c}
.step{display:grid;grid-template-columns:70px 1fr;gap:18px;padding:20px 0;border-bottom:1px solid #50331e}
.step::before{counter-increment:step;content:"0" counter(step);font:900 22px var(--mono);color:#60371e}
.step h3{margin:0 0 5px}.step p{margin:0;color:#67452c;font-size:14px}
.channel{display:flex;align-items:center;justify-content:space-between;padding:18px 0;border-bottom:1px solid #51331d}.channel b{font-size:18px}.channel span{font:700 12px var(--mono)}
.metrics{display:grid;grid-template-columns:repeat(4,1fr);border:2px solid #17110b;background:#ecc873}
.metric{text-align:center;padding:28px 12px;border-right:1px solid #17110b}.metric:last-child{border:0}.metric b{display:block;font:900 40px var(--mono)}.metric span{font-size:13px;color:#614026}
.banner{margin-top:24px;background:#17120c;color:#f5d788;padding:24px 28px;display:flex;align-items:center;justify-content:space-between;gap:30px}
.harness-code{background:#0b0c0f;color:#e7c97d;border:2px solid #000;box-shadow:8px 8px 0 #6c4424;overflow:hidden}
.codebar{padding:12px 16px;border-bottom:1px solid #665036;font:12px var(--mono)}
pre{margin:0;padding:24px;overflow:auto;font:13px/1.8 var(--mono);white-space:pre;color:inherit}
.notes{display:grid;gap:18px}.note{border-left:5px solid #17110b;padding:7px 0 7px 20px}.note h3{margin-bottom:5px}.note p{margin:0;color:#624027}
.faq{max-width:740px;margin:auto;border-top:2px solid #17110b}
details{border-bottom:1px solid #2b1c10;background:rgba(245,206,119,.24)}
summary{position:relative;list-style:none;cursor:pointer;padding:20px 52px 20px 18px;font-weight:900}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";position:absolute;right:18px;top:14px;font:300 28px var(--mono);transition:.2s}
details[open] summary::after{transform:rotate(45deg)}
details p{padding:0 18px 20px;margin:0;color:#634229}
.news-list{border-top:2px solid #17110b}.news-item{display:grid;grid-template-columns:140px 1fr 100px;gap:20px;padding:22px 10px;border-bottom:1px solid #2d1d11;align-items:center}.news-item time{font:700 12px var(--mono)}.news-item h3{margin:0 0 5px}.news-item p{margin:0;font-size:14px;color:#604029}.news-item a{text-align:right;font-weight:900}
.news-extra{display:none}.news-list.expanded .news-extra{display:grid}.more{margin-top:24px;border:1px solid #17110b;background:transparent;padding:10px 18px;font-weight:900;cursor:pointer}
.footer{background:#06070a;color:#c7a766;padding:68px 0 24px;border-top:3px solid #000}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:44px}.footer h3,.footer h4{color:#f4d68c}.footer p{color:#8f7a55;max-width:430px}.footer ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}.footer a:hover{color:var(--ice)}.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #40351f;margin-top:45px;padding-top:20px;font-size:12px;color:#7e6b49}

/* Web workspace: separate composition */
.web-page{background:#cfa44f}
.web-shell{min-height:calc(100vh - 64px);display:grid;grid-template-columns:260px 1fr}
.web-rail{position:sticky;top:64px;height:calc(100vh - 64px);padding:30px 20px;border-right:2px solid #17110b;background:#bd873e}
.web-rail h1{font-size:25px;line-height:1.2}.rail-index{display:grid;gap:8px;margin-top:34px}.rail-index a{padding:8px 10px;border:1px solid transparent}.rail-index a:hover{border-color:#17110b;background:#e1b75e}.rail-sign{position:absolute;bottom:28px;font:italic 700 14px Georgia;color:#5c3019}
.workspace-main{padding:44px clamp(22px,5vw,72px) 90px}
.workspace-head{display:grid;grid-template-columns:1fr 420px;gap:40px;align-items:end;border-bottom:3px double #17110b;padding-bottom:32px}
.workspace-head h2{font-size:clamp(38px,6vw,74px);line-height:1;margin:10px 0}.prompt-slip{border:2px solid #17110b;background:#edcd80;padding:20px;transform:rotate(.7deg);box-shadow:7px 7px 0 #50301b}.prompt-slip label{display:block;font:700 11px var(--mono);margin-bottom:8px}.prompt-slip textarea{width:100%;min-height:100px;border:1px solid #17110b;background:#f7dda0;padding:12px;resize:vertical}.prompt-actions{display:flex;gap:10px;margin-top:10px}
.result-sheet{margin-top:40px;border:2px solid #17110b;background:#e8c36f;padding:30px;box-shadow:10px 10px 0 rgba(75,43,21,.25)}.result-meta{display:flex;justify-content:space-between;border-bottom:1px solid #5b3a21;padding-bottom:12px;font:12px var(--mono)}.answer{max-width:820px;padding-top:25px}.answer h3{font-size:28px}.revision{margin:24px 0;padding:16px;border-left:4px solid #5c321a;background:rgba(118,65,28,.1)}.web-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:36px}.web-card{border:1px solid #17110b;padding:22px;background:rgba(240,204,121,.38)}

/* Help center: separate composition */
.help-page{background:#dfb662}
.help-hero{padding:72px 0 50px}.help-title-row{display:grid;grid-template-columns:1fr 320px;gap:50px;align-items:end}.help-title-row h1{font-size:clamp(42px,7vw,82px);line-height:.95;margin:12px 0}.help-stamp{border:3px double #17110b;padding:22px;transform:rotate(1.2deg);text-align:center;font:800 13px var(--mono)}
.help-search{margin-top:42px;display:flex;max-width:780px;border:2px solid #17110b;background:#f0cf82}.help-search input{flex:1;border:0;background:transparent;padding:15px 18px;outline:0}.help-search button{border:0;border-left:2px solid #17110b;background:#17110b;color:#f4d489;padding:0 24px;font-weight:900}
.help-layout{display:grid;grid-template-columns:250px 1fr;gap:44px;padding-bottom:90px}.help-toc{position:sticky;top:90px;align-self:start;border:2px solid #17110b;padding:20px;background:#cb9847}.help-toc strong{display:block;margin-bottom:14px}.help-toc a{display:block;padding:8px 0;border-bottom:1px solid rgba(32,20,10,.35)}.help-content{border-top:3px solid #17110b}.help-article{padding:34px 0;border-bottom:2px solid #17110b;scroll-margin-top:90px}.help-article h2{font-size:30px}.help-article-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}.help-box{border:1px solid #17110b;padding:20px;background:rgba(245,211,131,.35)}.help-box code{font-family:var(--mono)}.api-table{width:100%;border-collapse:collapse}.api-table th,.api-table td{border:1px solid #17110b;padding:12px;text-align:left}.api-table th{background:#b97f39}.search-hidden{display:none!important}

@media(max-width:980px){
  .spec-grid{grid-template-columns:repeat(2,1fr)}.scene-grid{grid-template-columns:repeat(2,1fr)}.rack-row{grid-template-columns:210px 1fr}.rack-action{grid-column:1/-1;border-left:0;border-top:1px solid #714a2a}.split{gap:36px}.workspace-head{grid-template-columns:1fr}.web-cards{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1.5fr 1fr 1fr}.footer-brand{grid-column:1/-1}
}
@media(max-width:760px){
  body::after{display:none}.wrap{width:min(100% - 28px,var(--max))}.menu-toggle{display:block}.navlinks{display:none;position:absolute;top:64px;left:0;right:0;background:#21180f;padding:18px 20px;border-bottom:2px solid #000;flex-direction:column;align-items:stretch}.navlinks.open{display:flex}.navlinks .work-btn{width:100%}.hero{padding:52px 0}.hero-grid,.split{grid-template-columns:1fr}.anchor-inner{height:auto;grid-template-columns:1fr;padding:12px 0}.anchor-links{overflow:auto;grid-template-columns:repeat(4,minmax(138px,1fr));padding-bottom:4px}.section{padding:64px 0}.section-head{display:block}.spec-grid,.scene-grid{grid-template-columns:1fr}.rack-row{grid-template-columns:1fr}.rack-action{grid-column:auto}.metrics{grid-template-columns:repeat(2,1fr)}.metric:nth-child(2){border-right:0}.metric:nth-child(-n+2){border-bottom:1px solid #17110b}.banner{align-items:flex-start;flex-direction:column}.news-item,.news-list.expanded .news-extra{grid-template-columns:1fr;gap:8px}.news-item a{text-align:left}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.footer-bottom{flex-direction:column}.web-shell{display:block}.web-rail{position:relative;top:0;height:auto;border-right:0;border-bottom:2px solid #17110b}.rail-index{grid-template-columns:repeat(2,1fr)}.rail-sign{display:none}.workspace-main{padding:34px 16px 70px}.web-cards{grid-template-columns:1fr}.help-title-row,.help-layout,.help-article-grid{grid-template-columns:1fr}.help-stamp{max-width:280px}.help-toc{position:relative;top:0}.help-search{display:grid;grid-template-columns:1fr}.help-search button{min-height:48px;border-left:0;border-top:2px solid #17110b}
}
@media print{
  .site-header,.anchorbar,.actions,.more,.help-search,.help-toc,.footer{display:none!important}body{background:#fff;color:#000}.hero-grid,.split,.help-layout,.workspace-head{display:block}.section,.hero,.help-article{padding:24px 0;border-color:#000}.spec-grid,.scene-grid,.web-cards{grid-template-columns:1fr}.dark-section{background:#fff;color:#000}.console,.harness-code{color:#000;background:#fff;box-shadow:none}.web-shell{display:block}.web-rail{display:none}.workspace-main{padding:0}.media-frame,.result-sheet{box-shadow:none}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}}