*{box-sizing:border-box}body{margin:0;font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;color:#1d2733;background:#fff;line-height:1.75}
a{color:#0b5cad}.wrap{max-width:960px;margin:0 auto;padding:0 20px}
.top{border-bottom:1px solid #e3e8ee;background:#0f2540}.bar{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;padding:14px 20px}
.logo{color:#fff;font-weight:700;font-size:1.3rem;text-decoration:none;letter-spacing:.05em}nav a{color:#cdd8e4;text-decoration:none;margin-left:20px}nav a[aria-current]{color:#fff;border-bottom:2px solid #4ea3ff}
main{padding:32px 20px 56px;min-height:60vh}h1{font-size:1.9rem}h2{border-left:4px solid #0b5cad;padding-left:10px}
.hero{padding:24px 0}.hero p{font-size:1.1rem;color:#3c4a5a}.meta{color:#6b7785}
.road{list-style:none;padding:0;display:flex;gap:12px;flex-wrap:wrap}.road li{flex:1;min-width:150px;border:1px solid #d5dde6;border-radius:6px;padding:16px;background:#f6f9fc;position:relative}
.road b{display:block;font-size:1.3rem;color:#0f2540}.road span{color:#55606d}.road li:last-child{border-color:#0b5cad;background:#eaf3fd}
.notice,.placeholder{background:#f6f9fc;border:1px solid #e3e8ee;border-radius:6px;padding:4px 20px}.placeholder p{font-size:1.2rem;text-align:center;color:#55606d;padding:24px 0}
footer{background:#f2f4f7;color:#55606d;font-size:.9rem;padding:16px 0;border-top:1px solid #e3e8ee}
@media(max-width:600px){nav a{margin:0 16px 0 0}.bar{gap:8px}.road{flex-direction:column}}
.draft-banner{background:#fff4e5;border:2px solid #f0a020;border-radius:6px;padding:14px 20px;margin:0 0 20px;color:#6a3d00;font-size:1.05rem}
nav.toc a{color:#0b5cad;margin:0 4px}.tbl{overflow-x:auto}table{border-collapse:collapse;width:100%;margin:8px 0 20px;font-size:.93rem}
th,td{border:1px solid #d5dde6;padding:8px 10px;text-align:left;vertical-align:top}th{background:#0f2540;color:#fff}tbody tr:nth-child(even){background:#f6f9fc}td:first-child{white-space:nowrap;font-weight:600}
.refs{font-size:.9rem;word-break:break-all}