:root{
    --ink:#102c35;--ink-2:#23424c;--muted:#5c7077;--faint:#748589;
    --bg:#f1ede3;--panel:#fffdf8;--line:#d9d1c0;--line-soft:#e9e2d4;
    --brand:#0d4f5c;--brand-deep:#082e38;--brand-soft:#e8f1ef;
    --teal:#0f766e;--gold:#bd944c;--gold-soft:#f3e7ca;
    --danger:#b5472e;--danger-soft:#fdf0e8;
    --serif:"Songti SC","Noto Serif SC","Source Han Serif SC","STSong","SimSun",serif;
    --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Segoe UI",sans-serif;
    --mono:"SFMono-Regular","Cascadia Code","JetBrains Mono","Consolas",monospace;
    --shadow:0 24px 70px rgba(8,30,38,.16);
  }
  *{box-sizing:border-box}
  html,body{min-height:100%}
  body.is-login{
    margin:0;color:var(--ink);font-family:var(--sans);font-size:14px;line-height:1.6;
    background-color:var(--bg);
    background-image:
      radial-gradient(1100px 520px at 10% -10%,rgba(13,79,92,.11),transparent 60%),
      linear-gradient(rgba(16,44,53,.03) 1px,transparent 1px),
      linear-gradient(90deg,rgba(16,44,53,.03) 1px,transparent 1px);
    background-size:auto,30px 30px,30px 30px;
    display:flex;align-items:center;justify-content:center;padding:28px 18px;
    -webkit-font-smoothing:antialiased;
  }
  button,input{font:inherit}
  .login-shell{
    width:min(1040px,100%);min-height:600px;display:grid;
    grid-template-columns:minmax(0,1.08fr) minmax(380px,.92fr);
    background:var(--panel);border:1px solid var(--line);border-radius:18px;
    box-shadow:var(--shadow);overflow:hidden;
  }
  .login-brand{
    position:relative;padding:46px 46px 38px;color:#f4f0e4;overflow:hidden;
    background:
      radial-gradient(120% 120% at 100% 0%,#165b67 0%,#0b3d48 44%,#072d37 100%);
  }
  .login-brand::before{
    content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
    background:
      linear-gradient(125deg,transparent 0%,rgba(255,255,255,.06) 48%,transparent 100%),
      radial-gradient(rgba(255,255,255,.09) .6px,transparent .6px);
    background-size:auto,12px 12px;
  }
  .login-brand::after{
    content:"哨";position:absolute;right:-18px;bottom:-46px;font-family:var(--serif);
    font-size:220px;line-height:1;color:rgba(255,255,255,.045);pointer-events:none;
  }
  .login-brand > *{position:relative;z-index:1}
  .brand-line{display:flex;align-items:center;gap:12px}
  .brand-seal{
    width:44px;height:44px;border-radius:4px;display:grid;place-items:center;flex:0 0 auto;
    background:#f2e7cd;color:var(--brand-deep);font-family:var(--serif);font-size:25px;line-height:1;
    box-shadow:inset 0 0 0 1px rgba(255,255,255,.7),inset 0 0 0 4px #f2e7cd,inset 0 0 0 5px rgba(8,46,56,.22);
  }
  .brand-copy h1{margin:0;font-family:var(--serif);font-size:25px;font-weight:650;letter-spacing:.12em;line-height:1.15}
  .brand-copy p{margin:4px 0 0;font-family:var(--mono);font-size:10px;letter-spacing:.14em;color:rgba(244,240,228,.55);text-transform:uppercase}
  .brand-kicker{margin:54px 0 0;font-family:var(--mono);font-size:11px;letter-spacing:.16em;color:rgba(244,240,228,.48);text-transform:uppercase}
  .login-brand h2{
    margin:12px 0 0;font-family:var(--serif);font-size:40px;font-weight:600;line-height:1.2;
    letter-spacing:.04em;color:#fbf7ec;
  }
  .login-brand .lead{
    margin:16px 0 0;max-width:390px;font-size:14.5px;line-height:1.8;color:rgba(244,240,228,.7);
  }
  .login-points{list-style:none;margin:30px 0 0;padding:0;display:grid;gap:11px;max-width:380px}
  .login-points li{
    display:flex;align-items:center;gap:9px;font-size:13px;color:rgba(244,240,228,.82);
    padding:10px 12px;border:1px solid rgba(244,240,228,.14);border-radius:7px;
    background:rgba(255,255,255,.045);
  }
  .login-points li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--gold);flex:0 0 auto}
  .login-note{
    position:absolute;left:46px;right:46px;bottom:30px;margin:0;padding-top:14px;
    border-top:1px solid rgba(244,240,228,.12);font-family:var(--mono);
    font-size:10.5px;letter-spacing:.04em;color:rgba(244,240,228,.42);
  }
  .login-card{display:flex;flex-direction:column;justify-content:center;padding:46px 44px;background:linear-gradient(180deg,#fffdf8,#faf6ed)}
  .login-kicker{font-family:var(--mono);font-size:10px;letter-spacing:.16em;color:var(--faint);text-transform:uppercase}
  .login-card h2{margin:8px 0 0;font-family:var(--serif);font-size:30px;font-weight:650;letter-spacing:.04em}
  .login-sub{margin:7px 0 0;font-size:13px;line-height:1.65;color:var(--muted)}
  .login-form{display:grid;gap:16px;margin-top:30px}
  .login-field{display:grid;gap:6px}
  .login-field span{font-size:12.5px;font-weight:600;color:var(--ink-2)}
  .login-field input{
    width:100%;height:44px;border:1px solid var(--line);border-radius:7px;background:#fffdf8;
    color:var(--ink);padding:0 12px;font-size:14px;outline:0;transition:border-color .15s,box-shadow .15s;
  }
  .login-field input:focus{border-color:#90aaa9;box-shadow:0 0 0 3px rgba(13,79,92,.08);background:#fff}
  .login-field input::placeholder{color:#98a4a4}
  .password-wrap{position:relative;display:flex;align-items:center}
  .password-wrap input{padding-right:44px}
  .password-toggle{
    position:absolute;right:7px;top:50%;transform:translateY(-50%);
    width:30px;height:30px;display:grid;place-items:center;border:0;border-radius:5px;
    background:transparent;color:var(--faint);cursor:pointer;padding:0;
  }
  .password-toggle:hover{background:#f1eadc;color:var(--ink-2)}
  .password-toggle:focus-visible{outline:2px solid var(--teal);outline-offset:1px}
  .password-toggle .eye-off{display:none}
  .password-toggle.is-visible .eye-open{display:none}
  .password-toggle.is-visible .eye-off{display:block}
  /* 隐藏 Edge / Chromium 自带的密码显示按钮，避免和自定义眼睛重复 */
  .password-wrap input::-ms-reveal,
  .password-wrap input::-ms-clear{display:none;width:0;height:0}
  .password-wrap input::-webkit-credentials-auto-fill-button,
  .password-wrap input::-webkit-strong-password-auto-fill-button{display:none!important;visibility:hidden;pointer-events:none}
  .login-error{
    margin:0;padding:8px 10px;border:1px solid #efc9b8;border-radius:6px;
    background:var(--danger-soft);color:var(--danger);font-size:12.5px;line-height:1.55;
  }
  .login-btn{
    height:45px;border:1px solid var(--brand);border-radius:7px;background:var(--brand);color:#fffdf8;
    font-size:14px;font-weight:650;letter-spacing:.04em;cursor:pointer;
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    transition:background .15s,border-color .15s,transform .1s;
  }
  .login-btn:hover{background:#0f606c;border-color:#0f606c}
  .login-btn:active{transform:translateY(1px)}
  .login-btn:disabled{background:#9aa8a5;border-color:#9aa8a5;cursor:not-allowed}
  .login-hint{
    margin:18px 0 0;padding:10px 12px;border:1px dashed #d9c698;border-radius:6px;
    background:#fcf7ea;color:#846b36;font-size:12px;line-height:1.6;text-align:center;
  }
  @media (max-width:880px){
    body.is-login{padding:14px}
    .login-shell{grid-template-columns:1fr;min-height:0;border-radius:14px}
    .login-brand{padding:30px 24px 26px}
    .brand-kicker{margin-top:30px}
    .login-brand h2{font-size:32px}
    .login-brand .lead{font-size:13.5px}
    .login-points{display:none}
    .login-note{position:static;margin-top:24px;padding-top:12px}
    .login-card{padding:30px 24px 32px}
    .login-card h2{font-size:26px}
  }
  @media (max-width:480px){
    .login-brand{padding:24px 18px 22px}
    .login-card{padding:24px 18px 26px}
    .brand-copy h1{font-size:21px}
    .login-brand h2{font-size:27px}
  }