:root{--bg:#fbfaf7;--surface:#fff;--surface2:#f1f6f5;--ink:#17201f;--muted:#5e6b68;--line:#d9e2df;--brand:#0f766e;--brand2:#b45309;--accent:#1d4ed8;--code:#101817;--shadow:0 16px 40px rgba(23,32,31,.08)}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--bg);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC",Arial,sans-serif;line-height:1.75}a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}.site-header{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px clamp(18px,4vw,48px);border-bottom:1px solid var(--line);background:rgba(251,250,247,.94);backdrop-filter:blur(12px)}.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:800;white-space:nowrap}.brand-mark{display:inline-grid;width:34px;height:34px;place-items:center;border-radius:8px;background:var(--brand);color:#fff;font-size:13px}.site-nav{display:flex;align-items:center;gap:16px;font-size:15px}.site-nav a{color:#263330}.menu-toggle{display:none;border:1px solid var(--line);border-radius:8px;background:var(--surface);padding:8px 12px;font:inherit}.container{width:min(1120px,calc(100% - 36px));margin:0 auto}.hero{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(300px,.92fr);gap:34px;align-items:center;width:min(1180px,calc(100% - 36px));margin:0 auto;padding:clamp(42px,8vw,90px) 0 42px}.eyebrow{margin:0 0 12px;color:var(--brand2);font-weight:700}h1,h2,h3{margin:0 0 14px;line-height:1.25}h1{font-size:clamp(34px,5vw,58px)}h2{font-size:clamp(24px,3vw,34px)}h3{font-size:19px}p{margin:0 0 16px}.lead,.article-header p{color:var(--muted);font-size:18px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 16px;border-radius:8px;border:1px solid var(--line);font-weight:700}.btn.primary{border-color:var(--brand);background:var(--brand);color:#fff}.btn.secondary{background:var(--surface);color:var(--brand)}.btn.ghost{border-color:#d7b56d;background:#fff8e6;color:#7c4a03}.terminal-card{border:1px solid var(--line);border-radius:8px;background:var(--code);color:#dff7ef;padding:18px;box-shadow:var(--shadow);min-height:320px}.dot{display:inline-block;width:10px;height:10px;margin-right:6px;border-radius:50%}.red{background:#ef4444}.yellow{background:#f59e0b}.green{background:#22c55e}pre{overflow-x:auto;margin:14px 0 0;white-space:pre-wrap;word-break:break-word}.band{margin:20px 0 48px;padding:36px 0;background:var(--surface2);border-block:1px solid var(--line)}.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:20px 0 44px}.info-card,details{border:1px solid var(--line);border-radius:8px;background:var(--surface);padding:20px}.info-card p,details p{color:var(--muted)}.quick-links,.resource-list,.tutorial-strip div{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:16px 0 42px}.quick-links a,.resource-list a,.tutorial-strip a{border:1px solid var(--line);border-radius:8px;background:var(--surface);padding:14px 16px;color:var(--ink);font-weight:700}.seo-copy{padding-bottom:56px}.article-wrap{padding:28px 0 10px}.breadcrumbs{display:flex;flex-wrap:wrap;gap:8px;color:var(--muted);font-size:14px}.article-header{max-width:820px;padding:28px 0 20px}.article-header h1{font-size:clamp(32px,4vw,48px)}.doc-layout{max-width:900px}.toc{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 26px;padding:14px;border:1px solid var(--line);border-radius:8px;background:var(--surface)}.toc strong{margin-right:6px}.toc a{color:var(--muted)}.doc-section{scroll-margin-top:92px;margin:0 0 34px}.doc-section ul{padding-left:22px}.code-block{margin:14px 0 22px;border-radius:8px;overflow:hidden;background:var(--code);color:#e8fff7}.code-head{display:flex;align-items:center;justify-content:space-between;padding:9px 12px;border-bottom:1px solid rgba(255,255,255,.12);color:#b7cbc6;font-size:13px}.copy-btn{border:1px solid rgba(255,255,255,.18);border-radius:7px;background:rgba(255,255,255,.08);color:#fff;padding:5px 10px;cursor:pointer}.code-block pre{margin:0;padding:16px}code{font-family:ui-monospace,SFMono-Regular,Consolas,"Liberation Mono",monospace}details{margin-bottom:12px}summary{cursor:pointer;font-weight:800}.tutorial-strip{padding:26px 0 20px;border-top:1px solid var(--line)}.tutorial-strip h2{font-size:22px}.site-footer{margin-top:30px;padding:34px clamp(18px,4vw,48px) 24px;background:#10201d;color:#dbe9e6}.footer-inner{display:grid;grid-template-columns:1.4fr .8fr .8fr;gap:24px;max-width:1120px;margin:0 auto}.footer-inner p{color:#b9cbc6}.footer-inner nav{display:grid;gap:8px;align-content:start}.footer-inner a{color:#e9fff7}.copyright{max-width:1120px;margin:22px auto 0;color:#9db2ad;font-size:14px}.not-found{display:grid;min-height:100vh;place-content:center;gap:14px;width:min(620px,calc(100% - 36px));margin:0 auto;text-align:center}@media(max-width:920px){.menu-toggle{display:inline-flex}.site-nav{display:none;position:absolute;inset:64px 18px auto 18px;flex-direction:column;align-items:stretch;padding:14px;border:1px solid var(--line);border-radius:8px;background:var(--surface);box-shadow:var(--shadow)}.site-nav.open{display:flex}.hero,.card-grid,.quick-links,.resource-list,.tutorial-strip div,.footer-inner{grid-template-columns:1fr}}@media(max-width:560px){.brand span:last-child{max-width:210px;white-space:normal;line-height:1.25}.hero-actions{flex-direction:column}.btn{width:100%}.terminal-card{min-height:240px}}