:root{--paper:#f5f6f8;--surface:#fff;--ink:#172033;--muted:#667085;--line:#e4e7ec;--brand:#1d4ed8;--soft:#eaf1ff;--warn:#92400e;--warn-bg:#fff7ed}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.78;-webkit-font-smoothing:antialiased}a{color:var(--brand)}
.shell{width:min(980px,calc(100% - 40px));margin:0 auto}.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.92);border-bottom:1px solid var(--line);backdrop-filter:blur(18px)}.nav{height:68px;display:flex;align-items:center;gap:18px}.home{display:flex;align-items:center;gap:11px;color:var(--ink);text-decoration:none}.mark{display:grid;grid-template-columns:repeat(2,6px);gap:2px;width:32px;height:32px;align-content:center;justify-content:center;border-radius:9px;background:var(--ink);color:#fff}.mark i{width:6px;height:6px;border:1px solid currentColor;border-radius:1px}.home b{font-size:12px;letter-spacing:.12em}.nav-links{display:flex;gap:18px;margin-left:auto}.nav-links a{font-size:12px;color:var(--muted);text-decoration:none}.nav-links a:hover{color:var(--ink)}
.hero{padding:70px 0 34px}.eyebrow{margin:0 0 12px;color:var(--brand);font-size:11px;font-weight:750;letter-spacing:.12em;text-transform:uppercase}.hero h1{margin:0;font-size:clamp(38px,6vw,60px);line-height:1.12;letter-spacing:-.04em}.hero p{max-width:720px;margin:18px 0 0;color:var(--muted);font-size:15px}.meta{display:flex;gap:16px;flex-wrap:wrap;margin-top:22px;color:var(--muted);font-size:11px}.preflight{display:none;margin:0 0 24px;padding:13px 16px;border:1px solid #fed7aa;border-radius:12px;background:var(--warn-bg);color:var(--warn);font-size:12px}.preflight.show{display:block}
.layout{display:grid;grid-template-columns:210px minmax(0,1fr);gap:28px;align-items:start;padding-bottom:80px}.toc{position:sticky;top:92px;padding:16px;border:1px solid var(--line);border-radius:16px;background:#fff}.toc b{display:block;margin-bottom:9px;font-size:11px;letter-spacing:.1em}.toc a{display:block;padding:5px 0;color:var(--muted);font-size:11px;text-decoration:none}.toc a:hover{color:var(--brand)}.doc{padding:34px 38px;border:1px solid var(--line);border-radius:22px;background:#fff}.doc h2{margin:38px 0 12px;padding-top:4px;font-size:22px;line-height:1.3;letter-spacing:-.02em}.doc h2:first-child{margin-top:0}.doc h3{margin:24px 0 8px;font-size:15px}.doc p,.doc li{color:#475467;font-size:13.5px}.doc ul,.doc ol{padding-left:22px}.notice{margin:18px 0;padding:15px 17px;border-left:3px solid var(--brand);border-radius:0 10px 10px 0;background:var(--soft);font-size:12.5px;color:#344054}.danger{border-left-color:#b42318;background:#fff1f0}.config-card{display:grid;grid-template-columns:150px 1fr;border:1px solid var(--line);border-bottom:0;border-radius:12px;overflow:hidden;margin:16px 0}.config-card dt,.config-card dd{margin:0;padding:10px 12px;border-bottom:1px solid var(--line);font-size:12px}.config-card dt{background:#f8f9fb;color:var(--muted)}.config-card dd{background:#fff;color:var(--ink)}.service-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.service{padding:18px;border:1px solid var(--line);border-radius:16px;background:#fff}.service small{color:var(--brand);font-size:9px;letter-spacing:.1em}.service h3{margin:5px 0 7px}.service p{margin:0;font-size:12px}.site-footer{padding:28px 0 38px;border-top:1px solid var(--line);background:#fff;color:var(--muted);font-size:11px}.footer-row{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}.footer-links{display:flex;gap:13px;flex-wrap:wrap}.footer-links a{color:var(--muted);text-decoration:none}
@media(max-width:760px){.shell{width:min(100% - 28px,980px)}.nav-links a:not(:first-child){display:none}.hero{padding:48px 0 25px}.layout{grid-template-columns:1fr;gap:14px}.toc{position:static;display:flex;gap:12px;overflow-x:auto}.toc b{display:none}.toc a{white-space:nowrap}.doc{padding:25px 20px}.service-grid{grid-template-columns:1fr}.config-card{grid-template-columns:1fr}.config-card dt{padding-bottom:2px;border-bottom:0}.config-card dd{padding-top:2px}}
@media print{.site-header,.toc,.preflight,.site-footer{display:none!important}.layout{display:block}.doc{border:0;padding:0}.hero{padding-top:0}}