:root{
  --blue:#2c5282; --blue-2:#2b6cb0; --blue-3:#e8f4ff; --bg:#f5f7fa;
  --text:#333; --muted:#666; --line:#e2e8f0; --warn:#b7791f; --warn-bg:#fffaf0; --danger:#c53030;
  --radius:8px; --maxw:1160px;
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:"Microsoft YaHei","PingFang SC",sans-serif;background:var(--bg);color:var(--text);line-height:1.7;font-size:15px;overflow-x:hidden}
a{color:var(--blue-2);text-decoration:none}
a:hover{text-decoration:underline}
header{background:var(--blue);color:#fff;padding:0 20px;position:sticky;top:0;z-index:50;box-shadow:0 2px 8px rgba(0,0,0,.08)}
.hd{max-width:var(--maxw);margin:0 auto;display:flex;align-items:center;gap:20px;flex-wrap:wrap;padding:14px 0}
.logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:19px}
.logo:hover{text-decoration:none}
.logo-mark{background:#fff;color:var(--blue);border-radius:6px;padding:3px 8px;font-size:17px;letter-spacing:.5px}
.logo-text{white-space:nowrap}
nav{margin-left:auto;display:flex;flex-wrap:wrap;gap:4px}
nav a{color:#e8eef7;padding:8px 12px;border-radius:6px;font-size:14.5px;white-space:nowrap}
nav a:hover{background:rgba(255,255,255,.14);text-decoration:none}
nav a.active{background:rgba(255,255,255,.2);color:#fff;font-weight:600}
.nav-toggle{display:none;background:transparent;border:1px solid rgba(255,255,255,.5);color:#fff;border-radius:6px;padding:7px 12px;font-size:14px;cursor:pointer;margin-left:auto}
.container{max-width:var(--maxw);margin:26px auto;padding:0 20px}
.crumb{font-size:13px;color:var(--muted);margin-bottom:12px}
.crumb a{color:var(--blue-2)}
.page-head{margin-bottom:18px}
.page-head h1{font-size:26px;color:var(--blue);font-weight:700;line-height:1.35}
.page-sub{color:var(--muted);margin-top:6px;font-size:14px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;margin-bottom:18px;box-shadow:0 1px 3px rgba(0,0,0,.04)}
.card h2{font-size:20px;color:var(--blue);margin-bottom:12px}
.card h3{font-size:17px;color:var(--blue);margin-bottom:10px}
.card p{margin-bottom:10px}
.card p:last-child{margin-bottom:0}
.lead{font-size:16px}
.muted{color:var(--muted);font-size:14px}
.sm{font-size:13px}
.hero .hero-actions{margin-top:16px;display:flex;gap:10px;flex-wrap:wrap}
.btn{display:inline-block;background:var(--blue-2);color:#fff;padding:10px 22px;border-radius:6px;font-weight:500;border:none;cursor:pointer;font-size:15px}
.btn:hover{background:#245a94;text-decoration:none;color:#fff}
.btn-outline{background:#fff;color:var(--blue-2);border:1px solid var(--blue-2)}
.btn-outline:hover{background:var(--blue-3);color:var(--blue-2)}
.btn-ghost{background:transparent;color:var(--blue-2);border:1px solid var(--line)}
.btn-block{display:block;width:100%;background:var(--blue-2);color:#fff;padding:12px;border:0;border-radius:6px;font-size:16px;cursor:pointer;margin-top:14px}
.btn-block:hover{background:#245a94}
.btn-code{background:var(--blue-3);color:var(--blue-2);border:1px solid #bee3f8;border-radius:6px;padding:10px 14px;cursor:pointer;white-space:nowrap;font-size:14px}
.biz-list{list-style:none;margin:10px 0}
.biz-list li{padding:10px 0;border-bottom:1px dashed var(--line);font-size:15px}
.biz-list li:last-child{border-bottom:none}
.tag{display:inline-block;background:var(--blue-3);color:var(--blue-2);border-radius:4px;padding:2px 8px;font-size:13px;margin-right:8px;white-space:nowrap}
.promise{padding-left:22px}
.promise li,.bullet li{margin-bottom:6px}
.bullet{padding-left:22px}
table{width:100%;border-collapse:collapse;margin:12px 0;font-size:14px;table-layout:fixed}
th,td{border:1px solid var(--line);padding:9px 12px;text-align:left;vertical-align:top;word-break:break-word;overflow-wrap:anywhere}
th{background:#f0f4f8;color:var(--blue);font-weight:600}
.info-table th{width:auto;background:#f7f9fc}
/* 窄屏表格包裹层，避免撑破视口 */
.tw{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch}
.tw table{min-width:460px;margin:0}
.note{background:var(--warn-bg);border-left:4px solid #e9a23b;color:#744210}
.note.blue{background:var(--blue-3);border-left-color:var(--blue-2);color:#1a365d}
.tip{background:var(--warn-bg);border-left:4px solid #e9a23b;color:#744210;padding:12px 14px;border-radius:6px;margin-bottom:18px;font-size:14px}
.item-card h3{margin-bottom:6px}
.item-meta{color:var(--muted);font-size:14px;margin-bottom:6px}
.form-wrap{max-width:720px}
.item{margin-bottom:14px}
label{display:block;margin-bottom:6px;font-weight:600;font-size:14px}
input,textarea,select{width:100%;padding:10px 12px;border:1px solid #cbd5e0;border-radius:5px;font-size:15px;font-family:inherit;background:#fff;color:var(--text)}
input:focus,textarea:focus{outline:none;border-color:var(--blue-2);box-shadow:0 0 0 3px rgba(43,108,176,.12)}
input[type=file]{padding:8px;background:#fafbfc}
.code-row{display:flex;gap:10px}
.code-row input{flex:1}
.consent{margin:14px 0 4px;padding:12px;border:1px solid var(--line);border-radius:6px;background:#fafbfc}
.consent .ck{display:flex;align-items:flex-start;gap:8px;font-weight:400;font-size:14px;line-height:1.6;margin-bottom:0}
.consent input[type=checkbox]{width:16px;height:16px;margin-top:4px;flex:none}
.article h3{margin-top:20px}
.article h3:first-child{margin-top:0}
.update-time{color:#999;font-size:13px;text-align:right;margin-top:18px}
.update-time:before{content:""}
.todo{background:#fed7d7;color:#9b2c2c;border:1px solid #fc8181;border-radius:4px;padding:2px 8px;font-weight:700}
.lic-no{font-weight:700}
.code-404{font-size:70px;font-weight:800;color:var(--line);line-height:1;text-align:center}
.center{text-align:center}
.center h2{margin:10px 0}
footer{background:#fff;border-top:1px solid var(--line);margin-top:40px;padding:26px 20px;color:var(--muted);font-size:13.5px}
.ft{max-width:var(--maxw);margin:0 auto;text-align:center;line-height:2}
.ft-op{madding-bottom:6px;border-bottom:1px solid var(--line);display:inline-block;padding:0 0 6px}
.ft-beian{padding:6px 0}
.ft-links a{margin:0 8px;white-space:nowrap}
.ft-copy{padding:6px 0}
.ft-note{color:#8a94a6;font-size:12.5px}
.beian{color:var(--muted)}
@media (max-width:900px){
  .nav-toggle{display:block}
  nav{display:none;width:100%;flex-direction:column;padding-bottom:10px}
  nav.open{display:flex}
  nav a{padding:10px}
  .page-head h1{font-size:22px}
  .container{margin:18px auto}
  .card{padding:18px 16px}
  .lead{font-size:15px}
  .hero-actions .btn{flex:1 1 auto;text-align:center}
}
@media (max-width:600px){
  body{font-size:14.5px}
  .page-head h1{font-size:20px}
  .hd{padding:12px 0}
  .logo-text{font-size:17px}
  .tw table{min-width:400px;font-size:13.5px}
  .tw th,.tw td{padding:8px 10px}
  .code-row{flex-direction:column}
  .btn-code{width:100%}
  .ft-links a{display:inline-block;margin:4px 6px}
  .ft-op{font-size:12.5px}
}
@media print{
  header,.nav-toggle,footer .ft-links{display:none}
  body{background:#fff}
  .card{box-shadow:none;border-color:#ddd;break-inside:avoid}
}