添加交叉评查菜单页面，添加单点登录相关逻辑（待完善）

app/styles/pages/login.css

@@ -207,4 +207,114 @@
   .login-footer {
     color: #6b7280;
   }
+}
+
+/* 临时管理员登录样式 */
+.temp-login-section {
+  margin-top: 2rem;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 1.5rem;
+}
+
+.section-divider {
+  position: relative;
+  width: 100%;
+  text-align: center;
+  margin: 1rem 0;
+}
+
+.section-divider::before {
+  content: '';
+  position: absolute;
+  top: 50%;
+  left: 0;
+  right: 0;
+  height: 1px;
+  background-color: #e5e7eb;
+  z-index: 1;
+}
+
+.section-divider span {
+  background-color: white;
+  color: #9ca3af;
+  padding: 0 1rem;
+  font-size: 0.875rem;
+  position: relative;
+  z-index: 2;
+}
+
+.temp-login-form {
+  width: 100%;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 1rem;
+}
+
+.temp-admin-login-button {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  gap: 0.75rem;
+  width: 100%;
+  padding: 0.875rem 1.5rem;
+  background: linear-gradient(135deg, #f59e0b 0%, #f97316 100%);
+  color: white;
+  border: none;
+  border-radius: 6px;
+  font-size: 1rem;
+  font-weight: 500;
+  cursor: pointer;
+  transition: all 0.3s ease;
+  position: relative;
+  overflow: hidden;
+}
+
+.temp-admin-login-button:hover {
+  background: linear-gradient(135deg, #f97316 0%, #f59e0b 100%);
+  transform: translateY(-1px);
+  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
+}
+
+.temp-admin-login-button:active {
+  transform: translateY(0);
+}
+
+.temp-admin-login-button i {
+  font-size: 1.25rem;
+  opacity: 0.9;
+}
+
+.temp-login-tips {
+  text-align: center;
+  color: #f59e0b;
+  font-size: 0.8rem;
+  font-weight: 500;
+}
+
+.temp-login-tips p {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  gap: 0.5rem;
+  margin: 0;
+}
+
+.temp-login-tips i {
+  font-size: 0.95rem;
+  color: #f59e0b;
+}
+
+/* 暗色主题下的临时登录样式 */
+@media (prefers-color-scheme: dark) {
+  .section-divider::before {
+    background-color: #374151;
+  }
+  
+  .section-divider span {
+    background-color: #1f2937;
+    color: #6b7280;
+  }
 }