:root{--bg:#fbf7f0;--card:#fff;--ink:#2b2420;--muted:#7a6d62;--accent:#b5482b;--line:#eadfd2;--soft:#f4ebe0}
@media (prefers-color-scheme:dark){:root{--bg:#1c1917;--card:#262220;--ink:#efe8e1;--muted:#a8998c;--accent:#e0795a;--line:#3a332e;--soft:#2e2926}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.75 "PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
.wrap{max-width:860px;margin:0 auto;padding:0 16px}
header{border-bottom:1px solid var(--line);background:var(--card)}
header .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;padding-bottom:14px;flex-wrap:wrap}
.logo{font-size:22px;font-weight:700;color:var(--ink)}.logo span{color:var(--accent)}
nav a{margin-left:18px;color:var(--muted)}nav a:first-child{margin-left:0}
.hero{padding:44px 0 28px}.hero h1{font-size:30px;margin:0 0 8px}.hero p{color:var(--muted);margin:0}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px;padding-bottom:40px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px 18px 14px}
.card .tag{display:inline-block;font-size:12px;color:var(--accent);background:var(--soft);border-radius:99px;padding:1px 10px;margin-bottom:8px}
.card h3{margin:0 0 6px;font-size:18px}.card p{margin:0;color:var(--muted);font-size:14px}
article{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px;margin:0 0 20px}
article h2{margin:0 0 4px}article .meta{color:var(--muted);font-size:13px;margin-bottom:12px}
article h4{margin:16px 0 4px}article ol,article ul{padding-left:22px;margin:4px 0}
footer{border-top:1px solid var(--line);color:var(--muted);font-size:13px;padding:20px 0 30px;text-align:center}