:root{--bg:#fafaf9;--surface:#fff;--surface-2:#f4f4f2;--text:#1c1c1a;--text-2:#6d6d68;--text-3:#a3a39d;--border:#e7e7e3;--border-strong:#d6d6d1;--accent:#2f6bf0;--accent-text:#2456c9;--warning-soft:#fff6e0;--warning-text:#8a5a00;color-scheme:light}
@media (prefers-color-scheme:dark){:root{--bg:#111110;--surface:#191918;--surface-2:#222220;--text:#ececea;--text-2:#a4a49e;--text-3:#6c6c67;--border:#2a2a28;--border-strong:#3a3a37;--accent:#6d95ff;--accent-text:#8fb0ff;--warning-soft:#3a2f10;--warning-text:#f5c96b;color-scheme:dark}}
*{box-sizing:border-box}
body{margin:0;min-height:100vh;font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Inter,Roboto,"Helvetica Neue",Arial,sans-serif;font-size:15px;line-height:1.55;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}
a{color:var(--accent-text);text-decoration:none}a:hover{text-decoration:underline}
.wrap{max-width:640px;margin:0 auto;padding:48px 24px 40px}
.home{max-width:400px;text-align:center;padding-top:96px}
.mark{display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:14px;background:var(--accent);margin-bottom:16px}
.mark svg{width:26px;height:26px;stroke:#fff;fill:none;stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round}
h1{font-size:24px;letter-spacing:-.02em;margin:0 0 6px}
.home h1{margin-bottom:4px}
.lede{color:var(--text-2);margin:0 0 22px}
.desc{text-align:left;color:var(--text-2);font-size:14px;border:1px solid var(--border);border-radius:8px;background:var(--surface);padding:14px 16px;margin:0 0 20px}
.desc strong{color:var(--text);font-weight:600}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;width:100%;height:42px;padding:0 14px;border-radius:6px;border:1px solid var(--border-strong);background:var(--surface);color:var(--text);font-weight:500;font-size:14.5px}
.btn:hover{background:var(--surface-2);text-decoration:none}
.btn svg{width:18px;height:18px}
.note{margin:14px 0 0;font-size:12.5px;color:var(--text-3)}
.alert{text-align:left;border:1px solid var(--border);border-radius:8px;background:var(--warning-soft);color:var(--warning-text);padding:12px 14px;margin:0 0 16px;font-size:14px}
.dev{margin-top:28px;padding-top:16px;border-top:1px dashed var(--border);text-align:left}
.dev label{display:block;font-size:12px;font-weight:600;color:var(--text-2);margin-bottom:6px}
.dev .row{display:flex;gap:6px}
.dev input{flex:1;height:34px;padding:0 10px;border-radius:6px;border:1px solid var(--border-strong);background:var(--surface);color:var(--text);font:inherit}
.dev button{height:34px;padding:0 12px;border-radius:6px;border:1px solid var(--border-strong);background:var(--surface);color:var(--text);font:inherit;font-weight:500}
footer{margin-top:40px;padding-top:16px;border-top:1px solid var(--border);font-size:12.5px;color:var(--text-3);display:flex;gap:14px;flex-wrap:wrap;justify-content:center}
.doc footer{justify-content:flex-start}
.doc h2{font-size:16px;margin:28px 0 8px}
.doc p,.doc li{color:var(--text-2)}
.doc ul{padding-left:20px}
.doc .meta{font-size:13px;color:var(--text-3);margin:0 0 20px}
.doc .back{display:inline-block;margin-bottom:24px;font-size:13.5px}