/* ========== 登录/注册页面样式 ========== */
.auth-container {
  max-width: 440px;
  margin: 0 auto;
}

.auth-tabs {
  display: flex;
  margin-bottom: 24px;
  border-bottom: 2px solid var(--border);
}

.auth-tab {
  flex: 1;
  padding: 12px;
  text-align: center;
  font-weight: 600;
  cursor: pointer;
  color: var(--text-secondary);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: var(--transition);
}

.auth-tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.auth-form {
  display: none;
}

.auth-form.active {
  display: block;
}

.auth-submit {
  width: 100%;
  margin-top: 8px;
}

.auth-form .btn-primary {
  width: 100%;
}

/* ========== 模式选择页 ========== */
.mode-select-container {
  text-align: center;
}

.mode-select-container .card-title {
  text-align: center;
}

.mode-select-container .btn-primary {
  margin-top: 20px;
}