:root{color-scheme:light;font-family:"Microsoft YaHei",system-ui,sans-serif;color:#172b45;background:#f1f4f8}
*{box-sizing:border-box}body{margin:0}main{width:min(620px,100%);margin:0 auto;padding:32px 20px}
header{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px;color:#60738a}
a{color:#2454a6;text-decoration:none}.brand{font-size:22px;font-weight:700;color:#172b45}
.card{background:#fff;border:1px solid #dce3ec;border-radius:16px;padding:32px;box-shadow:0 10px 35px #172b4508}
h1{font-size:28px;margin:8px 0 16px;overflow-wrap:anywhere}h2{font-size:21px;margin:24px 0 18px}
.eyebrow{font-size:13px;font-weight:600;color:#52667f;margin:0}.muted{color:#60738a;line-height:1.7;margin:0 0 24px}
label{display:block;font-size:14px;font-weight:600;margin:20px 0 10px}
input,button{display:block;width:100%;font:inherit;border-radius:8px;min-height:46px;padding:12px 14px}
input{border:1px solid #bcc9d9;background:#fff;color:#172b45}input:focus{outline:2px solid #a4bdf0;border-color:#2454a6}
button{margin-top:20px;border:0;background:#2454a6;color:white;cursor:pointer;font-weight:600}button:hover{background:#1a4186}
.notice{border-radius:8px;padding:14px 16px;font-size:14px;line-height:1.6;overflow-wrap:anywhere}
.error{background:#fff0ef;color:#94352e}.success{background:#edf8f1;color:#286744}
.back{display:inline-block;margin:0 0 20px;font-size:14px}.details{margin:24px 0;display:grid;gap:14px}
.details div{display:flex;justify-content:space-between;gap:16px}.details dt{color:#60738a;font-size:14px}.details dd{margin:0;font-weight:600}
hr{border:0;border-top:1px solid #e6ebf1}.qq-group{display:block;width:100%;margin:20px 0 0;background:#2454a6;color:#fff;border-radius:8px;min-height:46px;padding:12px 14px;text-align:center;font-weight:600}.qq-group:hover{background:#1a4186;text-decoration:none}.small{font-size:13px;margin-top:14px;margin-bottom:0}footer{text-align:center;color:#7c8da1;font-size:12px;padding-top:28px}
@media(max-width:480px){main{padding:24px 16px}.card{padding:24px}h1{font-size:24px}.details div{flex-wrap:wrap}}