:root{--navy:#0d2740;--ink:#1b2b3a;--muted:#5f7080;--line:#e3e9ef;--bg:#f6f8fa;--white:#fff;--accent:#e8892b}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg);line-height:1.9;-webkit-font-smoothing:antialiased}
a{color:#132f4c}
.top{background:var(--white);border-bottom:1px solid var(--line)}
.top .in{max-width:900px;margin:0 auto;padding:14px 20px;display:flex;justify-content:space-between;align-items:center;gap:12px}
.top b{font-size:17px;color:var(--navy)}
.top a{font-size:14px;text-decoration:none;color:var(--muted)}
main{max-width:900px;margin:0 auto;padding:30px 20px 60px}
article{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:38px 40px}
h1{font-size:27px;line-height:1.4;margin:0 0 8px;color:var(--navy)}
.meta{color:var(--muted);font-size:14px;margin:0 0 26px}
h2{font-size:19px;margin:32px 0 10px;color:var(--navy)}
h3{font-size:16px;margin:22px 0 8px;color:var(--navy)}
p{margin:0 0 12px;font-size:15.5px}
ul,ol{margin:0 0 14px;padding-left:22px}
li{margin-bottom:7px;font-size:15.5px}
strong{color:var(--navy)}
table{width:100%;border-collapse:collapse;margin:12px 0 18px;font-size:14.5px}
th,td{border:1px solid var(--line);padding:9px 11px;text-align:left;vertical-align:top}
th{background:#f0f5fa;color:var(--navy);font-weight:600}
.notice{background:#fff8f0;border-left:4px solid var(--accent);padding:14px 16px;border-radius:0 8px 8px 0;margin:0 0 22px;font-size:15px}
.toc{background:#f6f9fc;border:1px solid var(--line);border-radius:10px;padding:16px 20px;margin-bottom:26px;font-size:14.5px}
.toc a{display:block;padding:3px 0;text-decoration:none;color:#3b5268}
.toc a:hover{color:var(--navy);text-decoration:underline}
footer{border-top:1px solid var(--line);margin-top:36px;padding:20px;text-align:center;font-size:12px;color:var(--muted);line-height:1.9}
@media(max-width:560px){article{padding:24px 18px}h1{font-size:22px}h2{font-size:17px}table{font-size:13px}th,td{padding:7px 8px}}