:root{--ink:#1a2332;--muted:#5a6572;--brand:#0f62fe;--bg:#ffffff;--soft:#f4f6f8;--line:#e3e7ec}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:Georgia,'Times New Roman',serif;color:var(--ink);background:var(--bg);line-height:1.75;font-size:17px}
header{border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:9}
.wrap{max-width:760px;margin:0 auto;padding:0 20px}
.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.logo{font-family:Arial,Helvetica,sans-serif;font-weight:700;font-size:19px;color:var(--ink);text-decoration:none}
.logo span{color:var(--brand)}
nav a{font-family:Arial,sans-serif;font-size:14px;color:var(--muted);text-decoration:none;margin-left:18px}
nav a:hover{color:var(--brand)}
main{padding:36px 0 60px}
h1{font-size:34px;line-height:1.25;margin-bottom:10px}
h2{font-size:23px;margin:34px 0 12px}
h3{font-size:18px;margin:24px 0 8px;font-family:Arial,sans-serif}
p{margin:14px 0}
.meta{font-family:Arial,sans-serif;font-size:13px;color:var(--muted);margin-bottom:22px}
.disclosure{font-family:Arial,sans-serif;font-size:13px;color:var(--muted);background:var(--soft);border:1px solid var(--line);border-radius:8px;padding:10px 14px;margin:18px 0}
.card{border:1px solid var(--line);border-radius:10px;padding:20px 22px;margin:18px 0;background:#fff}
.card h3 a{color:var(--ink);text-decoration:none}
.card h3 a:hover{color:var(--brand)}
.card p{margin:8px 0 0;color:var(--muted);font-size:15px}
.tip{border-left:4px solid var(--brand);background:var(--soft);padding:12px 16px;margin:18px 0;font-size:15.5px}
ol,ul{margin:14px 0 14px 26px}
li{margin:7px 0}
a{color:var(--brand)}
.btn{display:inline-block;font-family:Arial,sans-serif;background:var(--brand);color:#fff;text-decoration:none;padding:11px 22px;border-radius:8px;font-size:15px;margin:8px 0}
footer{border-top:1px solid var(--line);padding:26px 0;font-family:Arial,sans-serif;font-size:13px;color:var(--muted)}
footer a{color:var(--muted);margin-right:14px}
table{border-collapse:collapse;width:100%;margin:16px 0;font-family:Arial,sans-serif;font-size:14.5px}
th,td{border:1px solid var(--line);padding:9px 12px;text-align:left}
th{background:var(--soft)}