body {
      margin: 0;
      min-height: 100vh;
      background:
        radial-gradient(circle at 12% 18%, rgba(96, 165, 250, 0.18), transparent 24%),
        radial-gradient(circle at 88% 82%, rgba(14, 165, 233, 0.12), transparent 28%),
        linear-gradient(150deg, #eef2f7, #f7f8fb 45%, #eef2f7);
      font-family: "Segoe UI", "PingFang SC", "Noto Sans SC", sans-serif;
      color: #111827;
    }
    .auth-card {
      width: min(420px, calc(100vw - 32px));
      border: 1px solid #e5e7eb;
      border-radius: 22px;
      background: rgba(255, 255, 255, 0.96);
      box-shadow: 0 26px 60px rgba(15, 23, 42, 0.12);
    }
    .field {
      width: 100%;
      height: 46px;
      border: 1px solid #dbe0e8;
      border-radius: 12px;
      background: #f8fafc;
      padding: 0 14px;
      font-size: 14px;
      outline: none;
    }
    .submit-btn {
      width: 100%;
      height: 46px;
      border: 0;
      border-radius: 12px;
      background: #111827;
      color: #fff;
      font-size: 14px;
      font-weight: 600;
      cursor: pointer;
    }
    .turnstile-wrap {
      display: flex;
      justify-content: center;
      align-items: center;
      min-height: 66px;
    }
    .turnstile-wrap[hidden] {
      display: none !important;
    }
    .turnstile-box {
      display: flex;
      justify-content: center;
      width: 100%;
    }