/* Product layout uses upstream semantic tokens; system theme remains automatic.
 * 产品布局使用上游语义令牌；主题自动跟随系统。 */
body{margin:0;color:var(--moe-color-text);background:var(--moe-color-background);font-family:var(--moe-font-family-sans)}
header,main,footer{max-width:1180px;margin:auto;padding:28px 32px}header,footer{display:flex;align-items:center;justify-content:space-between;gap:24px}a{color:var(--moe-color-accent-strong);text-underline-offset:4px}nav,.actions{display:flex;gap:24px;flex-wrap:wrap}.wordmark{font-size:30px;font-weight:800;color:var(--moe-color-heading);text-decoration:none}.wordmark span{font-size:13px;font-weight:400}.hero{display:grid;grid-template-columns:1.1fr 1fr;gap:64px;align-items:center;padding:64px 0 80px}.eyebrow,.principles article>span{font-family:var(--moe-font-family-mono);font-size:12px;letter-spacing:.1em;color:var(--moe-color-accent-strong)}h1{font-size:clamp(42px,6vw,76px);letter-spacing:-.045em;line-height:1.2;margin:24px 0}h2{font-size:30px;line-height:1.4}h1,h2,h3{color:var(--moe-color-heading)}.lead{font-size:20px;line-height:1.8}.actions{margin:32px 0}.button{padding:14px 24px;border-radius:var(--moe-radius-pill);background:var(--moe-color-accent-strong);color:var(--moe-color-on-accent);text-decoration:none;font-weight:700}.secondary{background:var(--moe-color-surface-muted);color:var(--moe-color-heading)}.note{font-size:13px;line-height:1.8;color:var(--moe-color-text-soft)}.terminal{background:var(--moe-color-surface-strong);border:1px solid var(--moe-color-border);border-radius:var(--moe-radius-lg);padding:28px;box-shadow:var(--moe-shadow-md);transform:rotate(-1deg)}.terminal-title{font-size:11px;letter-spacing:.14em;border-bottom:1px solid var(--moe-color-border);padding-bottom:16px}.terminal p{font-size:12px;color:var(--moe-color-text-soft)}pre{overflow:auto;font-size:13px;line-height:1.9;padding:20px 0}code{font-family:var(--moe-font-family-mono)}.muted{color:var(--moe-color-text-soft)}.accent{color:var(--moe-color-accent-strong)}.principles{display:grid;grid-template-columns:repeat(3,1fr);border-block:1px solid var(--moe-color-border);gap:36px;padding:36px 0}.principles h2{font-size:21px}.principles p,.section p,dd,li{line-height:1.8}.section{padding:64px 0}.two-col,.release{display:grid;grid-template-columns:1fr 1fr;gap:64px}.two-col>div{min-width:0}dt{font-weight:700;margin-top:18px}dd{margin:6px 0;color:var(--moe-color-text-soft)}.release{border-top:1px solid var(--moe-color-border)}li{margin-bottom:12px}footer{border-top:1px solid var(--moe-color-border);margin-top:48px;font-size:12px}.skip{position:absolute;left:12px;top:-80px;padding:12px;background:var(--moe-color-surface-strong)}.skip:focus{top:8px}a:focus-visible{outline:3px solid var(--moe-color-focus);outline-offset:5px}@media(max-width:760px){header,main,footer{padding:24px}header,footer{flex-wrap:wrap}.hero,.two-col,.release,.principles{grid-template-columns:1fr;gap:28px}.hero{padding:36px 0}.terminal{transform:none}nav{gap:16px}.section{padding:36px 0}}