进行了一些小优化

assets/css/routes/user-center/settings.css

@@ -2,6 +2,134 @@
  * User Center — account settings + invite panel
  */
 
+/* 消息通知偏好 */
+.uc-notification-preferences__header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 20px;
+  padding-bottom: 20px;
+  border-bottom: 1px solid var(--color-line-soft, rgba(0,0,0,0.06));
+}
+
+.uc-notification-preferences__header h2 {
+  margin: 0 0 6px;
+  color: var(--color-ink);
+  font-size: 20px;
+}
+
+.uc-notification-preferences__header p {
+  margin: 0;
+  color: var(--color-ink-4);
+  font-size: 13px;
+}
+
+.uc-notification-preferences__header-icon {
+  display: grid;
+  place-items: center;
+  width: 44px;
+  height: 44px;
+  flex: 0 0 44px;
+  border-radius: 14px;
+  color: var(--color-primary);
+  background: var(--color-primary-soft);
+  font-size: 18px;
+}
+
+.uc-notification-preferences__list {
+  display: flex;
+  flex-direction: column;
+}
+
+.uc-notification-preference {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 24px;
+  min-height: 82px;
+  padding: 18px 0;
+  border-bottom: 1px solid var(--color-line-soft, rgba(0,0,0,0.06));
+  cursor: pointer;
+}
+
+.uc-notification-preference__copy {
+  display: flex;
+  min-width: 0;
+  flex-direction: column;
+  gap: 6px;
+}
+
+.uc-notification-preference__copy strong {
+  color: var(--color-ink);
+  font-size: 15px;
+}
+
+.uc-notification-preference__copy small {
+  color: var(--color-ink-4);
+  font-size: 13px;
+  font-weight: 400;
+  line-height: 1.6;
+}
+
+.uc-notification-switch {
+  position: relative;
+  display: inline-flex;
+  width: 44px;
+  height: 24px;
+  flex: 0 0 44px;
+}
+
+.uc-notification-switch input {
+  position: absolute;
+  width: 1px;
+  height: 1px;
+  opacity: 0;
+}
+
+.uc-notification-switch span {
+  width: 100%;
+  height: 100%;
+  border-radius: 999px;
+  background: var(--color-line, #cbd5e1);
+  transition: background-color 0.2s ease;
+}
+
+.uc-notification-switch span::after {
+  content: '';
+  position: absolute;
+  top: 3px;
+  left: 3px;
+  width: 18px;
+  height: 18px;
+  border-radius: 50%;
+  background: #fff;
+  box-shadow: 0 1px 3px rgba(15,23,42,0.22);
+  transition: transform 0.2s ease;
+}
+
+.uc-notification-switch input:checked + span {
+  background: var(--color-primary);
+}
+
+.uc-notification-switch input:checked + span::after {
+  transform: translateX(20px);
+}
+
+.uc-notification-switch input:focus-visible + span {
+  outline: 2px solid var(--color-primary);
+  outline-offset: 3px;
+}
+
+.uc-notification-preferences__footer {
+  display: flex;
+  justify-content: flex-end;
+  padding-top: 20px;
+}
+
+.uc-notification-preferences__footer .btn-primary {
+  min-width: 112px;
+}
+
 /* 设置区增强 */
 .uc-content .settings-section {
   margin-bottom: 24px;