:root{--ind:#4f46e5;--bg:#f5f7fb;--line:#e6eaf3;--tx:#1b2140;--mut:#6b7494;font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--tx);line-height:1.6;font-size:15px}[hidden]{display:none!important}
#topnav{display:flex;gap:16px;align-items:center;flex-wrap:wrap;background:#10163a;padding:12px 20px}#topnav a{color:#c3c9ee;text-decoration:none;font-size:14px}#topnav a:hover{color:#fff}.sp{flex:1}
#topnav button{background:var(--ind);color:#fff;border:0;border-radius:8px;padding:7px 12px;cursor:pointer}
main{max-width:820px;margin:20px auto;padding:0 16px 60px}.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;margin-bottom:16px}
h1{margin:6px 0 4px;font-size:26px}h2{font-size:18px;margin:22px 0 6px}h3{font-size:15px;margin:16px 0 4px}p,li{color:#2b3358}.mut{color:var(--mut);font-size:13px}
ul,ol{padding-left:22px}a{color:var(--ind)}code,.k{background:#eef0ff;border-radius:6px;padding:1px 6px;font-size:13px}
.note{background:#f1f0ff;border:1px solid #dcd9ff;border-radius:12px;padding:12px 14px;margin:12px 0}.warn{background:#fff4e0;border:1px solid #fcd9a0;border-radius:12px;padding:12px 14px;margin:12px 0}
#tabs{display:flex;gap:6px;flex-wrap:wrap;margin:14px 0}#tabs button{border:1px solid var(--line);background:#fff;border-radius:99px;padding:6px 14px;cursor:pointer;font:inherit}#tabs button.on{background:var(--ind);color:#fff;border-color:var(--ind)}
footer{text-align:center;color:var(--mut);font-size:12px;padding:20px}
@media print{#topnav,#tabs{display:none}[hidden]{display:block!important}body{background:#fff}.card{border:0;padding:0}}
table{width:100%;border-collapse:collapse;margin:10px 0;font-size:14px}th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line);vertical-align:top}th{color:var(--mut);font-size:12.5px}mark{background:#fff3b0;border-radius:4px;padding:0 3px}
@media(max-width:560px){main{margin:10px auto}.card{padding:16px}}