.auth-modal-mask {
      position: fixed;
      inset: 0;
      background: rgba(0, 0, 0, 0.45);
      display: none;
      align-items: center;
      justify-content: center;
      z-index: 1200;
    }
    .auth-modal-mask.is-open { display: flex; }
    .auth-modal {
      width: 1070px;
      height: 632px;
      background: #fff;
      border-radius: 12px;
      overflow: hidden;
      display: flex;
      position: relative;
    }
    .auth-close {
      position: absolute;
      top: 18px;
      right: 18px;
      font-size: 34px;
      color: #9c9c9c;
      line-height: 1;
      cursor: pointer;
      user-select: none;
    }
    .auth-left {
      width: 500px;
      background: linear-gradient(180deg, #29cabd 0%, #5dd1a6 100%);
      color: #fff;
      text-align: center;
      padding: 68px 32px 0;
      position: relative;
    }
    .auth-left h2 {
      margin: 0;
      font-size: 44px;
      line-height: 1.1;
      font-weight: 600;
      letter-spacing: 1px;
    }
    .auth-left p {
      margin: 20px 0 0;
      font-size: 16px;
      line-height: 1.35;
      font-weight: 300;
    }
    .auth-features {
      margin-top: 44px;
      display: flex;
      justify-content: space-between;
      font-size: 14px;
    }
    .auth-features span { width: 25%; }
    .auth-illustration {
      margin-top: 36px;
      width: 100%;
      max-width: 430px;
    }
    .auth-right {
      flex: 1;
      background: #fff;
      padding: 60px 72px 0;
    }
    .auth-title {
      margin: 0;
      font-size: 28px;
      line-height: 1.2;
      color: #1f2228;
      text-align: center;
      font-weight: 600;
    }
    .auth-tabs {
      margin-top: 34px;
      display: flex;
      justify-content: center;
      gap: 56px;
      font-size: 20px;
      color: #9a9a9a;
    }
    .auth-tab {
      position: relative;
      cursor: pointer;
      font-weight: 500;
      padding: 4px 6px;
    }
    .auth-tab.active {
      color: #2a2d33;
      font-weight: 600;
    }
    .auth-tab.active::after {
      content: "";
      position: absolute;
      left: 50%;
      transform: translateX(-50%);
      bottom: -10px;
      width: 52px;
      height: 4px;
      background: #ef5831;
      border-radius: 3px;
    }
    .auth-form {
      margin-top: 34px;
    }
    .auth-field {
      width: 100%;
      height: 50px;
      border: 1px solid #dfdfdf;
      border-radius: 6px;
      padding: 0 14px;
      font-size: 16px;
      color: #333;
      outline: none;
      margin-bottom: 14px;
    }
    .auth-field:focus { border-color: #f1724f; }
    .auth-panel { display: none; }
    .auth-panel.active { display: block; }
    .auth-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-top: 2px;
      font-size: 16px;
      color: #666;
    }
    .auth-row label {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      cursor: pointer;
    }
    .auth-row a { color: #ef5831; }
    .auth-submit {
      width: 100%;
      height: 50px;
      border: none;
      border-radius: 6px;
      margin-top: 14px;
      background: #ef5831;
      color: #fff;
      font-size: 22px;
      cursor: pointer;
    }
    .auth-submit:disabled { opacity: .7; cursor: not-allowed; }
    .auth-extra {
      margin-top: 16px;
      text-align: center;
      font-size: 16px;
      color: #666;
    }
    .auth-extra a { color: #ef5831; }
    .auth-error {
      min-height: 22px;
      margin-top: 6px;
      color: #e6432f;
      font-size: 14px;
    }
    .auth-inline {
      display: flex;
      gap: 10px;
      align-items: center;
    }
    .auth-captcha-btn {
      white-space: nowrap;
      min-width: 104px;
      height: 40px;
      border: 1px solid #ef5831;
      border-radius: 6px;
      color: #ef5831;
      background: #fff;
      font-size: 13px;
      cursor: pointer;
    }
    .auth-captcha-btn:disabled {
      color: #b08e82;
      cursor: not-allowed;
    }
    .auth-captcha-img {
      width: 104px;
      height: 40px;
      border: 1px solid #ececec;
      border-radius: 6px;
      cursor: pointer;
      object-fit: cover;
      flex-shrink: 0;
    }

    @media (max-width: 1260px) {
      .auth-modal {
        transform: scale(0.8);
        transform-origin: center center;
      }
    }