:root{--navy:#0e234d;--blue:#1f6fe5;--ink:#0f172a;--ink-2:#334155;--line:#e2e8f0;--bg:#f6f8fc}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.65;font-size:17px;overflow-x:hidden}
header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0}
header .w{max-width:860px;margin:0 auto;padding:10px 16px;display:flex;align-items:center;justify-content:space-between;gap:12px}
header img{height:44px;width:auto}
header a.back{display:inline-flex;align-items:center;min-height:46px;padding:0 16px;border-radius:12px;background:var(--blue);color:#fff;text-decoration:none;font-weight:700}
main{max-width:860px;margin:0 auto;padding:28px 16px 60px}
h1{color:var(--navy);font-size:clamp(26px,4vw,36px);line-height:1.2;margin-bottom:6px}
.up{color:#64748b;font-size:15px;margin-bottom:22px}
.box{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px 20px;margin-bottom:16px}
h2{color:var(--navy);font-size:21px;margin-bottom:8px;scroll-margin-top:80px}
p,li{color:var(--ink-2)}
ul{margin:6px 0 0 22px}
li{margin-bottom:4px}
table{width:100%;border-collapse:collapse;font-size:15px;margin-top:8px}
th,td{border:1px solid var(--line);padding:8px;text-align:left;vertical-align:top}
th{background:#eef3fb;color:var(--navy)}
.tw{overflow-x:auto}
a{color:var(--blue)}
footer{text-align:center;color:#64748b;font-size:14px;padding:20px 16px 40px}