/* auth.html —— 由内联样式抽出 */
*{box-sizing:border-box;margin:0;padding:0}
  :root{--font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;--bg:#F5F6F8;--card:#FFF;--border:#E7E9EE;--line:#EAECF0;--ink:#1A1D26;--ink-2:#5A606B;--ink-3:#9BA1AC;--accent:#2547C7;--accent-hover:#1D3AAB;--input-bg:#FBFBFC;--input-border:#D9DDE4;--danger:#D92D20}
  html,body{height:100%}
body{font-family:var(--font);color:var(--ink);-webkit-font-smoothing:antialiased;background:var(--bg) url('/assets/media/page-hero-bg.jpg') center/cover no-repeat}
  button{font-family:inherit;cursor:pointer}a{text-decoration:none}
  .page{min-height:100%;display:flex;flex-direction:column}
  .topbar{display:flex;align-items:center;justify-content:space-between;padding:22px 40px;flex:none}
  .brand{display:flex;align-items:center;gap:12px;color:var(--ink)}.brand-mark{width:36px;height:36px;border-radius:10px;background:var(--accent);display:flex;align-items:center;justify-content:center;flex:none}
  .brand-mark svg{width:21px;height:21px;stroke:#fff}.brand-name{font-size:19px;font-weight:600;letter-spacing:.4px}
  .top-link{font-size:14px;color:var(--ink-2);background:none;border:0;padding:6px 4px}.top-link:hover{color:var(--accent)}
  .main{flex:1;display:flex;align-items:center;justify-content:center;padding:24px 20px 40px;min-height:0}.view{width:100%;display:flex;flex-direction:column;align-items:center}.view[hidden]{display:none}
  .auth-card{width:420px;max-width:100%;background:var(--card);border:1px solid var(--border);border-radius:12px;box-shadow:0 1px 2px rgba(16,24,40,.04),0 16px 40px rgba(16,24,40,.07);padding:36px 40px 30px}
  .form-head{margin-bottom:24px}.form-title{font-size:24px;font-weight:700;letter-spacing:.2px}.form-sub{margin-top:8px;font-size:13px;color:var(--ink-2);line-height:1.55}
  .tabs{display:flex;gap:6px;margin-bottom:24px;border-bottom:1px solid var(--line)}.tab{flex:1;background:none;border:0;padding:10px 0 12px;font-size:14px;color:var(--ink-2);border-bottom:2px solid transparent;margin-bottom:-1px}.tab.active{color:var(--accent);border-color:var(--accent);font-weight:600}
  .field{margin-bottom:18px}.field>label{display:block;font-size:13px;margin-bottom:8px;font-weight:500}.field-input{width:100%;padding:12px 14px;font-size:14px;border-radius:8px;border:1px solid var(--input-border);background:var(--input-bg);color:var(--ink);outline:0;transition:border-color .15s,box-shadow .15s,background .15s}.field-input::placeholder{color:#A6ADB8}.field-input:focus{border-color:var(--accent);background:#fff;box-shadow:0 0 0 3px rgba(37,71,199,.12)}.field-input.err{border-color:var(--danger)}.field-input.err:focus{box-shadow:0 0 0 3px rgba(217,45,32,.12)}
  .input-wrap{position:relative}.input-wrap .field-input{padding-right:44px}.eye{position:absolute;right:5px;top:50%;transform:translateY(-50%);width:34px;height:34px;display:flex;align-items:center;justify-content:center;background:none;border:0;opacity:.48}.eye svg{width:19px;height:19px;stroke:var(--ink-2);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
  .code-row{display:flex;gap:12px}.code-row .field-input{flex:1}.code-btn{flex:none;width:118px;border:1px solid var(--input-border);background:#fff;color:var(--ink-2);border-radius:8px;font-size:13px}.code-btn:hover{background:var(--bg)}.code-btn:disabled{opacity:.5;cursor:not-allowed}
  .field-hint{font-size:12px;color:var(--danger);margin-top:6px;display:none}.field-hint.show{display:block}.form-row{display:flex;align-items:center;justify-content:space-between;margin:2px 0 22px;font-size:13px}.check{display:flex;align-items:center;gap:7px;cursor:pointer;font-size:13px;color:var(--ink-2)}.check input{width:15px;height:15px;accent-color:var(--accent);margin:0}.link{color:var(--accent);font-weight:500;cursor:pointer;background:none;border:0;font-size:13px;padding:0}.link:hover{color:var(--accent-hover)}
  .agree{display:flex;align-items:flex-start;gap:8px;font-size:12px;line-height:1.6;color:var(--ink-2);margin:4px 0 22px;cursor:pointer}.agree input{width:14px;height:14px;margin:2px 0 0;flex:none;accent-color:var(--accent)}.agree .link{font-size:12px}
  .btn-primary{width:100%;padding:13px;border:0;border-radius:8px;background:var(--accent);color:#fff;font-size:15px;font-weight:600;letter-spacing:8px;text-indent:8px;transition:background .15s,box-shadow .15s}.btn-primary:hover{background:var(--accent-hover);box-shadow:0 6px 16px rgba(37,71,199,.22)}.btn-primary:disabled{opacity:.65;cursor:not-allowed}.btn-primary:active{transform:translateY(1px)}.form-foot{text-align:center;font-size:13px;color:var(--ink-2);margin-top:24px}.form-foot .link{font-size:13px}
  .proto-card{width:720px;max-width:100%;max-height:calc(100vh - 120px);background:var(--card);border:1px solid var(--border);border-radius:12px;box-shadow:0 1px 2px rgba(16,24,40,.04),0 16px 40px rgba(16,24,40,.07);display:flex;flex-direction:column;overflow:hidden}.proto-head{flex:none;padding:28px 44px 0}.proto-head .form-title{font-size:22px}.proto-head .form-sub{margin-top:6px}.proto-body{flex:1;overflow-y:auto;padding:16px 44px 6px;scrollbar-width:thin}.clause{margin-bottom:16px}.clause-title{font-size:14px;font-weight:600;margin-bottom:6px}.clause p{font-size:13px;line-height:1.7;color:var(--ink-2)}.proto-foot{flex:none;display:flex;align-items:center;gap:14px;padding:18px 44px 24px;border-top:1px solid var(--line)}.proto-note{flex:1;font-size:12px;color:var(--ink-3);line-height:1.6}.btn-ghost{flex:none;padding:12px 22px;border-radius:8px;font-size:14px;border:1px solid #E0E3E9;background:#fff;color:var(--ink-2)}.btn-ghost:hover{background:var(--bg)}.proto-foot .btn-primary{width:auto;padding:12px 30px;letter-spacing:4px;text-indent:4px}
  .footer{flex:none;text-align:center;padding:18px 20px 24px;font-size:12px;color:var(--ink-3)}.footer a{color:inherit;margin:0 6px;cursor:pointer}.footer a:hover{color:var(--accent)}.toast{position:fixed;top:22px;left:50%;transform:translate(-50%,-12px);background:#1F2937;color:#fff;font-size:13px;padding:10px 18px;border-radius:8px;z-index:200;opacity:0;transition:opacity .2s,transform .2s;pointer-events:none;max-width:90vw;text-align:center}.toast.show{opacity:1;transform:translate(-50%,0)}
  @media (max-width:600px){.topbar{padding:18px 20px}.auth-card{padding:28px 22px 24px}.proto-card{max-height:calc(100vh - 80px)}.proto-head{padding:24px 22px 0}.proto-body{padding:14px 22px 4px}.proto-foot{padding:16px 22px 20px;flex-wrap:wrap}.proto-note{flex-basis:100%;margin-bottom:4px}}