:root { color-scheme: dark; --bg: #000; --fg: #fff; --dim: #8e8e93; --line: #2c2c2e; --panel: #111113; }
* { box-sizing: border-box; }
html { background: var(--bg); }
body { margin: 0; background: var(--bg); color: var(--fg); font: 17px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Helvetica Neue", Arial, sans-serif; -webkit-font-smoothing: antialiased; }
a { color: inherit; }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 20px; }
header.top { display: flex; align-items: center; justify-content: space-between; padding: 18px 0; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 19px; text-decoration: none; }
.brand img { width: 32px; height: 32px; border-radius: 8px; border: 1px solid var(--line); }
.lang { background: none; border: 1px solid var(--line); color: var(--dim); border-radius: 999px; padding: 6px 14px; font: inherit; font-size: 14px; cursor: pointer; }
.lang:hover { color: var(--fg); }
html:not([data-l="zh"]) [data-lang="zh"], html[data-l="zh"] [data-lang="en"] { display: none; }
.hero { padding: 56px 0 28px; text-align: center; }
.hero h1 { font-size: clamp(34px, 8vw, 56px); line-height: 1.08; letter-spacing: -0.02em; margin: 0 0 14px; }
.hero p { color: var(--dim); margin: 0 auto 28px; max-width: 30em; }
.cta { display: inline-block; background: var(--fg); color: #000; text-decoration: none; font-weight: 600; padding: 14px 28px; border-radius: 999px; }
.cta[aria-disabled="true"] { background: var(--panel); color: var(--dim); border: 1px solid var(--line); }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; padding: 28px 0 56px; }
.grid figure { margin: 0; position: relative; border-radius: 18px; overflow: hidden; border: 1px solid var(--line); aspect-ratio: 4 / 5; }
.grid img { width: 100%; height: 100%; object-fit: cover; display: block; }
.grid figcaption { position: absolute; left: 8px; bottom: 8px; right: 8px; font-size: 13px; font-weight: 600; padding: 6px 10px; border-radius: 12px; background: rgba(0, 0, 0, 0.55); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); }
@media (max-width: 560px) { .grid { grid-template-columns: repeat(2, 1fr); } }
main.doc { padding: 24px 0 64px; }
main.doc h1 { font-size: 34px; letter-spacing: -0.02em; margin: 24px 0 4px; }
main.doc .date { color: var(--dim); font-size: 14px; margin: 0 0 28px; }
main.doc h2 { font-size: 20px; margin: 34px 0 8px; }
main.doc p, main.doc li { color: #d1d1d6; }
main.doc ul { padding-left: 1.2em; }
main.doc table { width: 100%; border-collapse: collapse; font-size: 15px; margin: 12px 0; }
main.doc th, main.doc td { text-align: left; vertical-align: top; padding: 10px 12px; border-bottom: 1px solid var(--line); color: #d1d1d6; }
main.doc th { color: var(--dim); font-weight: 600; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 18px; padding: 18px 20px; margin: 14px 0; }
.card h2 { margin-top: 0; }
footer { border-top: 1px solid var(--line); padding: 22px 0 40px; color: var(--dim); font-size: 14px; display: flex; flex-wrap: wrap; gap: 8px 18px; }
footer a { color: var(--dim); text-decoration: none; }
footer a:hover { color: var(--fg); }
footer .co { margin-left: auto; }