html { color-scheme: light; }
    * { box-sizing: border-box; }
    body {
      margin:0;
      min-height:100vh;
      font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;
      color:#14251b;
      display:flex;
      align-items:center;
      justify-content:center;
      padding:22px 18px 54px;
      background:
        radial-gradient(circle at 20% 18%, rgba(47,125,75,.18), transparent 32%),
        radial-gradient(circle at 82% 10%, rgba(15,91,56,.14), transparent 30%),
        linear-gradient(135deg,#eef6f1 0%,#f8fbf9 48%,#e3efe8 100%);
    }
    .login-card {
      width:min(420px,94vw);
      background:rgba(255,255,255,.96);
      border-radius:16px;
      box-shadow:0 18px 48px rgba(15,65,36,.16);
      overflow:hidden;
      border:1px solid rgba(198,218,205,.95);
    }
    .login-head {
      background:linear-gradient(135deg,#073b25,#0f6b3f);
      color:#fff;
      padding:24px 24px 21px;
      text-align:center;
    }
    .login-head h1 { margin:0; font-size:24px; letter-spacing:.8px; font-weight:900; }
    .login-head p { margin:8px 0 0; font-size:13px; opacity:.86; }
    form { padding:25px 25px 22px; }
    label { display:block; font-size:14px; font-weight:900; color:#244c31; margin-bottom:7px; }
    input {
      width:100%;
      height:44px;
      border:1px solid #cbd9d0;
      border-radius:8px;
      padding:0 13px;
      font-size:16px;
      outline:none;
      margin-bottom:15px;
      background:#fff;
    }
    input:focus { border-color:#168a42; box-shadow:0 0 0 3px rgba(22,138,66,.13); }
    .error {
      display:none;
      background:#fff2f2;
      color:#b91c1c;
      border-left:4px solid #dc2626;
      padding:10px 12px;
      border-radius:7px;
      font-size:14px;
      margin-bottom:14px;
      font-weight:800;
    }
    button {
      width:100%;
      height:44px;
      border:0;
      border-radius:7px;
      background:#0f6b3f;
      color:#fff;
      font-size:16px;
      font-weight:900;
      cursor:pointer;
      box-shadow:0 7px 16px rgba(15,107,63,.18);
    }
    button:hover { background:#0c5a35; }
    .tip {
      padding:0 25px 23px;
      color:#63746a;
      font-size:12px;
      line-height:1.7;
      text-align:center;
    }
    .login-icp {
      position:fixed;
      left:0;
      right:0;
      bottom:16px;
      text-align:center;
      font-size:13px;
      font-weight:700;
      z-index:5;
    }
    .login-icp a {
      color:#2f4d3b;
      text-decoration:none;
    }
    .login-icp a:hover {
      color:#0f6b3f;
      text-decoration:underline;
    }