/* 登录/注册覆盖层样式 */
.login-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99999;
}
.login-container {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  border-radius: 16px;
  padding: 32px 28px;
  width: 90%;
  max-width: 360px;
  border: 1px solid rgba(46, 125, 50, 0.3);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}
.login-header {
  text-align: center;
  margin-bottom: 24px;
}
.login-header h2 {
  color: #4CAF50;
  font-size: 22px;
  margin: 0 0 8px 0;
}
.login-header p {
  color: rgba(255,255,255,0.6);
  font-size: 13px;
  margin: 0;
}
.login-tabs {
  display: flex;
  margin-bottom: 20px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.login-tab {
  flex: 1;
  padding: 12px;
  text-align: center;
  color: rgba(255,255,255,0.5);
  font-size: 15px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
}
.login-tab.active {
  color: #4CAF50;
  border-bottom-color: #4CAF50;
}
.login-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.form-group label {
  color: rgba(255,255,255,0.8);
  font-size: 13px;
}
.form-group input {
  padding: 14px 16px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 8px;
  background: rgba(255,255,255,0.05);
  color: #fff;
  font-size: 15px;
  outline: none;
}
.form-group input:focus {
  border-color: #4CAF50;
}
.form-group input::placeholder {
  color: rgba(255,255,255,0.3);
}
.password-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}
.password-wrapper input {
  width: 100%;
  padding-right: 44px;
}
.eye-btn {
  position: absolute;
  right: 12px;
  cursor: pointer;
  font-size: 18px;
  opacity: 0.6;
  user-select: none;
}
.eye-btn:active {
  opacity: 1;
}
.login-btn {
  padding: 14px;
  background: linear-gradient(135deg, #2E7D32, #4CAF50);
  border: none;
  border-radius: 8px;
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  margin-top: 8px;
}
.login-btn:disabled {
  background: rgba(255,255,255,0.2);
  cursor: not-allowed;
}
.login-error {
  color: #ef5350;
  font-size: 13px;
  text-align: center;
  padding: 8px;
  background: rgba(239, 83, 80, 0.1);
  border-radius: 6px;
  display: none;
}
.login-error.show {
  display: block;
}