:root{--bg:#fcf8f1;--surface:#fffdf9;--ink:#2a2420;--mut:#7a7066;--faint:#a4937d;--line:#ece2d2;--brand:#ba7517;--deep:#9a5a14;--lt:#e6c58c;--pale:#f7ecda;--amber:#c2622b;--max:880px}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;font-family:-apple-system,PingFang SC,Microsoft YaHei,system-ui,sans-serif;color:var(--ink);background:var(--bg);line-height:1.75;font-size:16px}a{color:var(--deep);text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%;height:auto}.wrap{max-width:var(--max);margin:0 auto;padding:0 18px}.site-header{position:sticky;top:0;z-index:10;background:#fcf8f1e6;backdrop-filter:saturate(150%) blur(8px);border-bottom:1px solid var(--line)}.nav{max-width:var(--max);margin:0 auto;padding:12px 18px;display:flex;align-items:center;gap:8px}.logo{display:flex;align-items:center;gap:9px;font-weight:800;color:var(--ink)}.logo .sq{display:grid;grid-template-columns:9px 9px;grid-gap:3px}.logo .sq i{width:9px;height:9px;border-radius:3px;display:block}.logo .sq i:nth-child(1){background:var(--brand)}.logo .sq i:nth-child(2){background:var(--lt)}.logo .sq i:nth-child(3){background:var(--amber)}.logo .sq i:nth-child(4){background:var(--deep)}.nav .spacer{flex:1}.nav a.link{color:var(--mut);font-weight:600;font-size:14.5px;padding:6px 10px;border-radius:9px}.nav a.link:hover{color:var(--deep);background:var(--pale);text-decoration:none}.hero{padding:48px 0 22px}.hero h1{font-size:30px;line-height:1.3;margin:0 0 12px;letter-spacing:.3px}.hero p{color:var(--mut);font-size:16px;margin:0;max-width:40em}.kicker{display:inline-flex;align-items:center;gap:7px;color:var(--amber);font-weight:700;font-size:12.5px;letter-spacing:1px;margin-bottom:13px}.kicker .dot{width:13px;height:13px;border-radius:4px;background:var(--amber)}.cards{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:22px 0}.card{display:block;border:1px solid var(--line);border-radius:16px;padding:18px 20px;background:var(--surface);transition:.15s}.card:hover{border-color:var(--lt);text-decoration:none}.card h3{margin:0 0 6px;font-size:18px;color:var(--ink)}.card p{margin:0;color:var(--mut);font-size:14px}.card .tag{display:inline-block;font-size:12px;font-weight:700;color:var(--deep);background:var(--pale);border-radius:7px;padding:3px 9px;margin-bottom:11px}.toolcard{display:block;border-radius:16px;padding:20px;background:var(--brand);color:#fff;transition:.15s;margin:10px 0 4px}.toolcard:hover{background:#a8690f;text-decoration:none}.toolcard .tag{display:inline-block;font-size:12px;font-weight:700;color:#fff;background:#ffffff38;border-radius:7px;padding:3px 9px;margin-bottom:10px}.toolcard h3{margin:0 0 6px;font-size:19px;color:#fff}.toolcard p{margin:0;color:#f7ecda;font-size:14px}.list{margin:18px 0 40px;padding:0;list-style:none}.list li{padding:16px 0;border-bottom:1px solid var(--line)}.list a.title{font-size:18px;font-weight:700;color:var(--ink)}.list a.title:hover{color:var(--deep)}.list .meta{color:var(--faint);font-size:13px;margin-top:4px}.list .sum{color:var(--mut);font-size:14.5px;margin-top:6px}.seclabel{font-size:12px;letter-spacing:1px;color:var(--faint);font-weight:700;margin:30px 0 2px}.prose{padding:30px 0 50px}.prose h1{font-size:27px;line-height:1.35;margin:0 0 8px}.prose .meta{color:var(--faint);font-size:13px;margin:0 0 26px}.prose h2{font-size:20px;margin:32px 0 10px;color:var(--deep)}.prose h3{font-size:17px;margin:22px 0 8px}.prose p{margin:0 0 15px}.prose ul,.prose ol{margin:0 0 15px;padding-left:22px}.prose li{margin:5px 0}.prose blockquote{margin:18px 0;padding:12px 16px;border-left:3px solid var(--brand);background:var(--pale);color:var(--ink);border-radius:0 10px 10px 0}.prose strong{color:var(--ink)}.note{font-size:13px;color:var(--mut);background:#fbf6ec;border:1px solid var(--line);border-radius:12px;padding:13px 15px;margin:22px 0}.toolframe{width:100%;height:88vh;border:1px solid var(--line);border-radius:14px;background:#f6f1e8}.site-footer{border-top:1px solid var(--line);margin-top:30px;padding:24px 0 50px;color:var(--mut);font-size:13px}.site-footer a{color:var(--deep)}@media (max-width:640px){.hero h1{font-size:25px}.cards{grid-template-columns:1fr}.nav a.link{padding:6px 8px}}