feat(security): 新增网站安全扩展模块并支持修改手机脱敏验证

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

@@ -716,6 +716,48 @@
 .aksrt-settings-modal .code-send-btn.is-counting { pointer-events: none; opacity: .6; }
 .aksrt-settings-modal .aksrt-captcha-wrap { margin: 12px 0 8px; }
 
+/* 修改手机：脱敏中间位数字框 */
+.aksrt-settings-modal .aksrt-phone-digits {
+  display: flex;
+  justify-content: center;
+  gap: 10px;
+  margin-bottom: 10px;
+}
+
+.aksrt-settings-modal .aksrt-phone-digit {
+  width: 48px;
+  height: 52px;
+  padding: 0;
+  border: 1px solid var(--color-line-soft, rgba(0, 0, 0, 0.12));
+  border-radius: 8px;
+  background: transparent;
+  color: var(--color-ink, #333);
+  font-size: 22px;
+  font-weight: 600;
+  line-height: 1;
+  text-align: center;
+  caret-color: var(--color-primary, #2a7de1);
+  outline: none;
+  transition: border-color .15s ease, box-shadow .15s ease;
+}
+
+.aksrt-settings-modal .aksrt-phone-digit:focus {
+  border-color: var(--color-primary, #2a7de1);
+  box-shadow: 0 0 0 3px rgba(42, 125, 225, 0.15);
+}
+
+.aksrt-settings-modal .aksrt-phone-digits.has-error .aksrt-phone-digit {
+  border-color: var(--color-danger, #e02020);
+  box-shadow: 0 0 0 3px rgba(224, 32, 32, 0.12);
+}
+
+.aksrt-settings-modal .aksrt-phone-digits__error {
+  margin: 0 0 12px;
+  color: var(--color-danger, #e02020);
+  font-size: 13px;
+  text-align: center;
+}
+
 @media (max-width: 640px) {
   .aksrt-modal-runtime.aksrt-user-settings-modal.aksrt-modal-runtime--bottom .aksrt-modal-runtime__dialog {
     width: 100%;