:root{--primary:#1B5BFF;--soft:#EAF1FF;--ink:#0A1F44;--text:#1D2939;--muted:#667085;--line:#E4E7EC;--bg:#F5F8FF;--white:#fff;--success:#00B42A;--warning:#FF9F0A;--danger:#F53F3F}
  *{box-sizing:border-box}html,body{height:100%;margin:0}
  body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:14px;color:var(--text);background:var(--bg);overflow:hidden}
  button,input,select{font:inherit}
  .hidden{display:none!important}
  .login{height:100%;display:flex;align-items:center;justify-content:center;padding:24px 16px;overflow-y:auto;background:radial-gradient(1000px 500px at 15% 10%,#1B5BFF44,transparent),linear-gradient(135deg,#07152F,#0A1F44 55%,#123A8C)}
  .login-card{width:min(400px,100%);margin:auto;background:#fff;border-radius:18px;padding:32px;box-shadow:0 30px 80px rgba(0,0,0,.35);position:relative}
  .login-locale{position:absolute;top:14px;right:14px}
  .locale-select{height:30px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--text);font:inherit;font-size:12px;padding:0 8px;cursor:pointer}
  .logo{display:flex;align-items:center;gap:10px;margin-bottom:24px}.logo-mark{width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,var(--primary),#00C2FF);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700}
  h1{font-size:22px;margin:0 0 6px;color:var(--ink)}.sub{color:var(--muted);font-size:13px;margin:0 0 22px}
  .field{margin-bottom:14px}.field label{display:block;font-size:12px;color:var(--muted);margin-bottom:6px}
  .field input,.field select{width:100%;height:42px;border:1px solid #D0D5DD;border-radius:10px;padding:0 12px;outline:none;background:#fff}
  .field input:focus,.field select:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--soft)}
  .btn{height:40px;border:0;border-radius:10px;background:var(--primary);color:#fff;font-weight:600;cursor:pointer;padding:0 16px}
  .btn:hover{background:#3D74FF}.btn.ghost{background:var(--soft);color:var(--primary)}.btn.full{width:100%}
  .err{color:var(--danger);font-size:12px;min-height:18px;margin-top:8px}
  .layout{height:100%;display:flex}
  .side{width:220px;background:var(--ink);color:#fff;padding:18px 12px;display:flex;flex-direction:column}
  .side .logo{margin:0 8px 26px}.side .logo b{color:#fff;font-size:16px}
  .nav{display:flex;flex-direction:column;gap:4px}
  .nav button,.nav a{height:40px;border:0;border-radius:9px;background:transparent;color:rgba(255,255,255,.7);text-align:left;padding:0 14px;cursor:pointer;font:inherit;display:flex;align-items:center;text-decoration:none;box-sizing:border-box}
  .nav button:hover,.nav a:hover{background:rgba(255,255,255,.08);color:#fff}.nav button.active,.nav a.active{background:var(--primary);color:#fff;font-weight:600}
  .side .foot{margin-top:auto;font-size:11px;color:rgba(255,255,255,.35);padding:8px}
  .content{flex:1;min-width:0;display:flex;flex-direction:column}
  header{height:56px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 20px;gap:12px}
  header .title{font-weight:600;color:var(--ink)}header .spacer{flex:1}header .who{font-size:13px;color:var(--muted)}
  main{flex:1;overflow-y:auto;padding:22px 24px 40px}
  .cards{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:18px}
  .card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px}
  .card .label{font-size:12px;color:var(--muted)}.card .num{font-size:28px;font-weight:700;color:var(--ink);margin-top:4px;font-variant-numeric:tabular-nums}
  .grid2{display:grid;grid-template-columns:1.2fr .8fr;gap:16px}
  .panel{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px}
  .panel h2{font-size:15px;color:var(--ink);margin:0 0 12px}
  table{width:100%;border-collapse:collapse}th{font-size:12px;color:var(--muted);text-align:left;font-weight:500;padding:10px 8px;border-bottom:1px solid var(--line)}
  td{padding:12px 8px;border-bottom:1px solid #F2F4F7;font-size:13px}tr:hover td{background:#FAFBFF}
  .tag{display:inline-block;padding:2px 8px;border-radius:999px;font-size:11px;background:var(--soft);color:var(--primary)}
  .tag.trial{background:#FFF8E8;color:#8A5A00}.tag.suspended{background:#FFF1F0;color:var(--danger)}.tag.active{background:#E8FFEF;color:#00892A}
  .toolbar{display:flex;gap:10px;align-items:center;margin-bottom:14px}.toolbar .spacer{flex:1}
  .search{height:36px;border:1px solid var(--line);border-radius:9px;padding:0 10px;width:240px;outline:none}
  .bar{display:flex;align-items:flex-end;gap:10px;flex-wrap:wrap;margin-bottom:18px}
  .bar .field{margin:0;min-width:150px;flex:1}
  .bar .field input,.bar .field select{height:38px}
  .plan-list{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
  .plan{border:1px solid var(--line);border-radius:10px;padding:12px}
  .plan b{color:var(--ink)}.plan .price{font-size:20px;font-weight:700;color:var(--primary);margin:4px 0}
  .plan .meta{font-size:12px;color:var(--muted)}
  .modal{position:fixed;inset:0;background:rgba(10,31,68,.38);display:none;align-items:center;justify-content:center;z-index:30;padding:20px}
  .modal.show{display:flex}.modal .box{background:#fff;border-radius:16px;padding:22px;width:440px;max-width:100%;max-height:90vh;overflow:auto}
  .modal h2{margin:0 0 14px;font-size:18px;color:var(--ink)}
  .toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:rgba(10,31,68,.92);color:#fff;padding:9px 14px;border-radius:9px;font-size:13px;z-index:50;display:none}
  .toast.show{display:block}
  .result{background:#F7F9FC;border:1px solid var(--line);border-radius:10px;padding:12px;font-size:12px;word-break:break-all;margin-top:10px;line-height:1.7}
  .muted{color:var(--muted);font-size:12px}
  .link-btn{border:0;background:transparent;color:var(--primary);cursor:pointer;font-size:12px;padding:2px 4px}
  .link-btn.danger{color:var(--danger)}
  .billing-summary{background:#F7F9FC;border:1px solid var(--line);border-radius:10px;padding:12px;font-size:13px;line-height:1.9;margin-bottom:14px}
  .billing-summary b{color:var(--ink)}
  .divider{height:1px;background:var(--line);margin:16px 0}
  .money{font-variant-numeric:tabular-nums}
  /* ---------- 响应式：PC / 平板 / 手机 ---------- */
  .nav-toggle{display:none;width:38px;height:38px;border:0;border-radius:9px;background:transparent;cursor:pointer;padding:9px;flex:0 0 auto;flex-direction:column;justify-content:center;gap:4px}
  .nav-toggle span{display:block;width:100%;height:2px;flex:0 0 2px;border-radius:2px;background:var(--ink)}
  .nav-scrim{display:none;position:fixed;inset:0;z-index:39;background:rgba(10,31,68,.45)}
  .table-wrap{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch}
  .grid2>.panel{min-width:0}
  header .btn,header .locale-select{flex:0 0 auto}
  header .btn{white-space:nowrap}
  @media(max-width:1000px){
    .cards{grid-template-columns:repeat(2,1fr)}
    .grid2{grid-template-columns:1fr}
    .side{width:180px}
    .field-row,.field-row.three{grid-template-columns:1fr}
  }
  @media(max-width:860px){
    body{overflow:hidden}
    .nav-toggle{display:flex}
    .side{position:fixed;top:0;left:0;bottom:0;width:258px;z-index:40;transform:translateX(-100%);transition:transform .24s ease,box-shadow .24s ease;overflow-y:auto}
    body.nav-open .side{transform:translateX(0);box-shadow:0 24px 60px rgba(10,31,68,.35)}
    body.nav-open .nav-scrim{display:block}
    header{padding:0 12px;gap:8px}
    header .title{min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    header .who{display:none}
    main{padding:16px 14px 32px}
    .table-wrap table{white-space:nowrap}
    .toolbar{flex-wrap:wrap}
    .search{max-width:100%}
    .bar .field{min-width:100%}
    .field-row,.field-row.three,.field-row[style]{grid-template-columns:1fr!important}
  }
  @media(max-width:560px){
    .cards{gap:10px}
    .card{padding:12px 14px}
    .card .num{font-size:22px}
    .panel{padding:14px}
    .grid2{gap:12px}
    .plan-list{grid-template-columns:1fr}
    .login-card{padding:24px 20px}
    .login-locale{top:10px;right:10px}
    .modal{padding:12px}
    .modal .box{padding:18px}
  }
  @media(max-width:380px){
    .cards{grid-template-columns:1fr}
    main{padding:14px 12px 28px}
  }