:root{color-scheme:light dark;--bg:#f3f2ee;--surface:#e8e7e2;--ink:#191918;--muted:#5e5d59;--line:#c9c7c0;--accent:#b43a2d;--accent-ink:#fff8f3;--shadow:#322d2824;--max:76rem;font-synthesis:none;font-family:SF Pro Display,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif}@media (prefers-color-scheme:dark){:root{--bg:#151514;--surface:#20201e;--ink:#efeee9;--muted:#aaa8a1;--line:#3a3935;--accent:#cf5748;--accent-ink:#fff8f3;--shadow:#0000004d}}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;margin:0;font-size:16px;line-height:1.6}a{color:inherit}button,a{-webkit-tap-highlight-color:transparent}:focus-visible{outline:3px solid var(--accent);outline-offset:4px}.shell{width:min(calc(100% - 3rem), var(--max));margin-inline:auto}.site-nav{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;height:72px;display:flex}.brand{color:var(--ink);align-items:baseline;gap:.65rem;text-decoration:none;display:inline-flex}.brand-cn{letter-spacing:-.06em;font-size:1.25rem;font-weight:760}.brand-en{color:var(--muted);letter-spacing:.08em;font:500 .72rem/1 ui-monospace,monospace}.nav-links{align-items:center;gap:1.5rem;display:flex}.nav-links a{color:var(--muted);font-size:.9rem;text-decoration:none}.nav-links a:hover{color:var(--ink)}.hero{grid-template-columns:minmax(0,1.05fr) minmax(20rem,.95fr);align-items:center;gap:clamp(3rem,8vw,8rem);min-height:calc(100dvh - 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