diff --git a/app/pages/index.vue b/app/pages/index.vue
index e5bc5f6..9699dc7 100644
--- a/app/pages/index.vue
+++ b/app/pages/index.vue
@@ -1633,9 +1633,9 @@ if (
 .home {
   width: 100%;
   flex: 1;
-  background-color: #121318;
+  background-color: var(--bg-primary, #ffffff);
   padding: 1.5rem;
-  color: #ffffff;
+  color: var(--text-primary, #1a2332);
   display: flex;
   flex-direction: column;
   min-height: 100vh; /* 确保至少占满视口 */
@@ -1709,9 +1709,9 @@ if (
   height: 100px;
   background: linear-gradient(
     to bottom,
-    rgba(255, 255, 255, 0.3),
-    rgba(255, 255, 255, 0.8),
-    rgba(255, 255, 255, 0.3)
+    var(--border-secondary, #d1d5db),
+    var(--border-tertiary, #9ca3af),
+    var(--border-secondary, #d1d5db)
   );
   border-radius: 1px;
 }
@@ -1795,9 +1795,9 @@ if (
   align-items: center;
   gap: 6px;
   padding: 6px 12px;
-  background: rgba(59, 130, 246, 0.15);
-  color: #60a5fa;
-  border: 1px solid rgba(59, 130, 246, 0.3);
+  background: var(--primary-light, rgba(30, 64, 175, 0.08));
+  color: var(--primary, #1e40af);
+  border: 1px solid var(--primary-border, rgba(30, 64, 175, 0.15));
   border-radius: 8px;
   font-size: 0.85rem;
   font-weight: 600;
@@ -1808,7 +1808,7 @@ if (
 }
 
 .enter-admin-btn:hover {
-  background: rgba(59, 130, 246, 0.25);
+  background: var(--primary-border, rgba(30, 64, 175, 0.15));
   transform: translateY(-1px);
 }
 
@@ -1821,21 +1821,21 @@ if (
 .user-name {
   font-size: 14px;
   font-weight: 600;
-  color: rgba(255, 255, 255, 0.9);
+  color: var(--text-primary, #1a2332);
 }
 
 .user-badge {
   font-size: 10px;
   padding: 1px 6px;
-  background: rgba(255, 255, 255, 0.1);
-  color: rgba(255, 255, 255, 0.5);
+  background: var(--surface-tertiary, var(--bg-tertiary));
+  color: var(--text-tertiary, #6b7280);
   border-radius: 4px;
   margin-top: 2px;
 }
 
 .user-badge.admin {
-  background: rgba(59, 130, 246, 0.2);
-  color: #3b82f6;
+  background: var(--primary-light, rgba(30, 64, 175, 0.08));
+  color: var(--primary, #1e40af);
 }
 
 .user-avatar-wrapper {
@@ -1843,8 +1843,8 @@ if (
   height: 36px;
   border-radius: 50%;
   overflow: hidden;
-  background: #2a2a2a;
-  border: 1px solid rgba(255, 255, 255, 0.1);
+  background: var(--surface-secondary, var(--bg-secondary));
+  border: 1px solid var(--border-primary, #e5e7eb);
   display: flex;
   align-items: center;
   justify-content: center;
@@ -1866,12 +1866,12 @@ if (
   position: absolute;
   top: calc(100% + 12px);
   right: 0;
-  background: #1a1a1f;
-  border: 1px solid rgba(255, 255, 255, 0.1);
+  background: var(--surface-primary, var(--bg-primary));
+  border: 1px solid var(--border-primary, #e5e7eb);
   border-radius: 12px;
   padding: 8px;
   min-width: 160px;
-  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
+  box-shadow: var(--shadow-lg, 0 10px 15px rgba(0, 0, 0, 0.1));
   display: flex;
   flex-direction: column;
   gap: 4px;
@@ -1883,7 +1883,7 @@ if (
   gap: 10px;
   padding: 10px 12px;
   border-radius: 8px;
-  color: rgba(255, 255, 255, 0.7);
+  color: var(--text-secondary, #4a5568);
   font-size: 14px;
   transition: all 0.2s;
   text-decoration: none;
@@ -1893,13 +1893,13 @@ if (
 }
 
 .action-item:hover {
-  background: rgba(255, 255, 255, 0.05);
-  color: white;
+  background: var(--surface-secondary, var(--bg-secondary));
+  color: var(--text-primary, #1a2332);
 }
 
 .action-item.logout:hover {
-  background: rgba(239, 68, 68, 0.1);
-  color: #ef4444;
+  background: var(--error-light, rgba(239, 68, 68, 0.1));
+  color: var(--error, #ef4444);
 }
 
 .notification-badge {
@@ -1909,8 +1909,8 @@ if (
   min-width: 18px;
   height: 18px;
   border-radius: 9px;
-  background-color: #f44336;
-  color: white;
+  background-color: var(--error, #ef4444);
+  color: #ffffff;
   font-size: 10px;
   font-weight: bold;
   display: flex;
@@ -1928,12 +1928,12 @@ if (
   border-radius: 14px;
   font-size: 14px;
   font-weight: 600;
-  background: rgba(255, 255, 255, 0.04);
+  background: var(--surface-secondary, var(--bg-secondary));
   backdrop-filter: blur(12px);
   -webkit-backdrop-filter: blur(12px);
-  color: #ffffff;
-  border: 1px solid rgba(255, 255, 255, 0.1);
-  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
+  color: var(--text-primary, #1a2332);
+  border: 1px solid var(--border-primary, #e5e7eb);
+  box-shadow: var(--shadow-sm, 0 1px 2px rgba(0, 0, 0, 0.05));
   transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
   text-decoration: none;
   position: relative;
@@ -1941,23 +1941,23 @@ if (
 }
 
 .login-options .login-btn:hover {
-  background: rgba(255, 255, 255, 0.08);
-  border-color: rgba(59, 130, 246, 0.5);
+  background: var(--surface-tertiary, var(--bg-tertiary));
+  border-color: var(--primary-border, rgba(30, 64, 175, 0.15));
   transform: translateY(-2px);
-  box-shadow: 0 8px 25px rgba(59, 130, 246, 0.2);
-  color: white;
+  box-shadow: var(--shadow-md, 0 4px 6px rgba(0, 0, 0, 0.1));
+  color: var(--text-primary, #1a2332);
 }
 
 .login-options .login-btn :deep(.icon),
 .login-options .login-btn i {
-  color: #3b82f6;
+  color: var(--primary, #1e40af);
   transition: all 0.3s ease;
 }
 
 .login-options .login-btn:hover :deep(.icon),
 .login-options .login-btn:hover i {
   transform: scale(1.1);
-  filter: drop-shadow(0 0 5px rgba(59, 130, 246, 0.5));
+  filter: drop-shadow(0 0 5px rgba(30, 64, 175, 0.3));
 }
 
 .login-options .login-btn:active {
@@ -1984,10 +1984,9 @@ if (
   font-weight: 800;
   font-size: 42px;
   letter-spacing: -0.02em;
-  background: linear-gradient(135deg, #ffffff 0%, rgba(255, 255, 255, 0.7) 100%);
+  background: linear-gradient(135deg, var(--text-primary, #1a2332) 0%, var(--text-secondary, #4a5568) 100%);
   -webkit-background-clip: text;
   -webkit-text-fill-color: transparent;
-  text-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
   margin: 0;
   line-height: 1.2;
 }
@@ -1995,16 +1994,16 @@ if (
 .title-divider {
   width: 40px;
   height: 4px;
-  background: #0b5afe;
+  background: var(--primary, #1e40af);
   border-radius: 2px;
-  box-shadow: 0 0 15px rgba(11, 90, 254, 0.6);
+  box-shadow: 0 0 15px var(--primary-light, rgba(30, 64, 175, 0.08));
 }
 
 .sub-title {
   font-family: 'MiSans', sans-serif;
   font-weight: 500;
   font-size: 14px;
-  color: rgba(255, 255, 255, 0.4);
+  color: var(--text-quaternary, #9ca3af);
   letter-spacing: 0.2em;
   text-transform: uppercase;
 }
@@ -2036,22 +2035,22 @@ if (
 }
 
 .section-tab {
-  background: #1a1b24;
+  background: var(--surface-secondary, var(--bg-secondary));
   border-radius: 15px 15px 0 0;
   padding: 15px 24px;
   font-family: 'MiSans', sans-serif;
   font-weight: 600;
   font-size: 16px;
-  color: rgba(255, 255, 255, 0.8);
-  border: 2px solid #282830;
+  color: var(--text-secondary, #4a5568);
+  border: 2px solid var(--border-primary, #e5e7eb);
   border-bottom: none;
   cursor: pointer;
   flex: 0 0 auto;
 }
 
 .section-tab.active {
-  background: #21242d;
-  color: #ffffff;
+  background: var(--surface-primary, var(--bg-primary));
+  color: var(--text-primary, #1a2332);
   position: relative;
   z-index: 1;
 }
@@ -2144,9 +2143,9 @@ if (
   right: -8px;
   width: 6px;
   height: 6px;
-  background: #0b5afe;
+  background: var(--primary, #1e40af);
   border-radius: 50%;
-  box-shadow: 0 0 5px rgba(11, 90, 254, 0.5);
+  box-shadow: 0 0 5px var(--primary-light, rgba(30, 64, 175, 0.08));
 }
 
 .section-tab::after {
@@ -2156,7 +2155,7 @@ if (
   left: 50%;
   width: 0;
   height: 2px;
-  background: #0b5afe;
+  background: var(--primary, #1e40af);
   transition: all 0.3s ease;
   transform: translateX(-50%);
 }
@@ -2174,19 +2173,19 @@ if (
   transform: none; /* 移除上浮效果 */
   background-color: transparent; /* 移除背景色 */
   box-shadow: none; /* 移除内阴影 */
-  color: rgba(255, 255, 255, 0.9);
+  color: var(--text-primary, #1a2332);
 }
 
 .section-tab.active:hover {
   background-color: transparent;
   box-shadow: none;
-  color: #ffffff;
+  color: var(--text-primary, #1a2332);
 }
 
 /* 内容容器 */
 .tab-content-container {
-  background: #1a1b24;
-  border: 2px solid #282830;
+  background: var(--surface-primary, var(--bg-primary));
+  border: 2px solid var(--border-primary, #e5e7eb);
   border-radius: 0 15px 15px 15px;
   padding: 1.5rem;
   margin-top: -2px; /* 使内容容器与标签连接 */
@@ -2282,7 +2281,7 @@ if (
   font-weight: 400;
   font-size: 16px;
   letter-spacing: 4%;
-  color: rgba(255, 255, 255, 0.6);
+  color: var(--text-tertiary, #6b7280);
   margin: 1.5rem 0 1rem;
 }
 
@@ -2302,7 +2301,7 @@ if (
 .empty-state {
   text-align: center;
   padding: 2rem;
-  color: rgba(255, 255, 255, 0.6);
+  color: var(--text-tertiary, #6b7280);
 }
 
 /* 下拉菜单动画 */
@@ -2339,13 +2338,13 @@ if (
   align-items: center;
   padding: 1.25rem 0;
   margin-bottom: 1.5rem;
-  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
+  border-bottom: 1px solid var(--border-primary, #e5e7eb);
 }
 
 .notification-title {
   font-size: 1.25rem;
   font-weight: 700;
-  color: #ffffff;
+  color: var(--text-primary, #1a2332);
   margin: 0;
   display: flex;
   align-items: center;
@@ -2353,9 +2352,9 @@ if (
 }
 
 .settings-icon {
-  background: rgba(255, 255, 255, 0.05);
-  border: 1px solid rgba(255, 255, 255, 0.1);
-  color: rgba(255, 255, 255, 0.6);
+  background: var(--surface-secondary, var(--bg-secondary));
+  border: 1px solid var(--border-primary, #e5e7eb);
+  color: var(--text-tertiary, #6b7280);
   width: 36px;
   height: 36px;
   border-radius: 10px;
@@ -2367,8 +2366,8 @@ if (
 }
 
 .settings-icon:hover {
-  background-color: rgba(255, 255, 255, 0.1);
-  color: #ffffff;
+  background-color: var(--surface-tertiary, var(--bg-tertiary));
+  color: var(--text-primary, #1a2332);
   transform: rotate(30deg);
 }
 
@@ -2391,14 +2390,14 @@ if (
   align-items: center;
   justify-content: center;
   padding: 3rem 0;
-  color: rgba(255, 255, 255, 0.4);
+  color: var(--text-quaternary, #9ca3af);
   gap: 1.25rem;
 }
 
 .empty-icon {
   width: 80px;
   height: 80px;
-  background: rgba(255, 255, 255, 0.03);
+  background: var(--surface-secondary, var(--bg-secondary));
   border-radius: 50%;
   display: flex;
   align-items: center;
@@ -2409,8 +2408,8 @@ if (
 .loading-spinner {
   width: 32px;
   height: 32px;
-  border: 3px solid rgba(255, 255, 255, 0.1);
-  border-top-color: #3b82f6;
+  border: 3px solid var(--border-secondary, #d1d5db);
+  border-top-color: var(--primary, #1e40af);
   border-radius: 50%;
   animation: spin 0.8s linear infinite;
 }
@@ -2428,9 +2427,8 @@ if (
 }
 
 .notification-card {
-  background: rgba(255, 255, 255, 0.03);
-  backdrop-filter: blur(20px);
-  border: 1px solid rgba(255, 255, 255, 0.06);
+  background: var(--surface-secondary, var(--bg-secondary));
+  border: 1px solid var(--border-primary, #e5e7eb);
   border-radius: 20px;
   padding: 1.25rem;
   transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
@@ -2439,14 +2437,14 @@ if (
 }
 
 .notification-card:hover {
-  background: rgba(255, 255, 255, 0.06);
-  border-color: rgba(255, 255, 255, 0.12);
+  background: var(--surface-tertiary, var(--bg-tertiary));
+  border-color: var(--border-secondary, #d1d5db);
   transform: translateY(-2px);
 }
 
 .notification-card.unread {
-  background: rgba(59, 130, 246, 0.05);
-  border-color: rgba(59, 130, 246, 0.2);
+  background: var(--primary-light, rgba(30, 64, 175, 0.08));
+  border-color: var(--primary-border, rgba(30, 64, 175, 0.15));
 }
 
 .notification-card-header {
@@ -2461,8 +2459,8 @@ if (
   justify-content: center;
   width: 40px;
   height: 40px;
-  background: rgba(59, 130, 246, 0.1);
-  color: #3b82f6;
+  background: var(--primary-light, rgba(30, 64, 175, 0.08));
+  color: var(--primary, #1e40af);
   border-radius: 12px;
   margin-right: 1rem;
   flex-shrink: 0;
@@ -2477,13 +2475,13 @@ if (
 .notification-title {
   font-size: 0.95rem;
   font-weight: 600;
-  color: #ffffff;
+  color: var(--text-primary, #1a2332);
   margin-bottom: 0.25rem;
 }
 
 .notification-time {
   font-size: 0.75rem;
-  color: rgba(255, 255, 255, 0.4);
+  color: var(--text-quaternary, #9ca3af);
 }
 
 .notification-card-body {
@@ -2491,7 +2489,7 @@ if (
 }
 
 .notification-text {
-  color: rgba(255, 255, 255, 0.7);
+  color: var(--text-secondary, #4a5568);
   font-size: 0.875rem;
   line-height: 1.6;
 }
@@ -2504,9 +2502,9 @@ if (
 }
 
 .action-button.delete {
-  background: rgba(239, 68, 68, 0.05);
-  color: #ef4444;
-  border: 1px solid rgba(239, 68, 68, 0.1);
+  background: var(--error-light, rgba(239, 68, 68, 0.1));
+  color: var(--error, #ef4444);
+  border: 1px solid var(--error-border, rgba(239, 68, 68, 0.2));
   padding: 0.4rem 0.75rem;
   border-radius: 8px;
   font-size: 0.75rem;
@@ -2517,22 +2515,22 @@ if (
 }
 
 .action-button.delete:hover {
-  background: rgba(239, 68, 68, 0.1);
-  border-color: rgba(239, 68, 68, 0.2);
+  background: rgba(239, 68, 68, 0.15);
+  border-color: rgba(239, 68, 68, 0.3);
 }
 
 .notification-actions-bar {
   display: flex;
   gap: 1rem;
   padding: 1rem 0;
-  border-top: 1px solid rgba(255, 255, 255, 0.08);
+  border-top: 1px solid var(--border-primary, #e5e7eb);
 }
 
 .action-button-large {
   flex: 1;
-  background: rgba(255, 255, 255, 0.05);
-  border: 1px solid rgba(255, 255, 255, 0.1);
-  color: #ffffff;
+  background: var(--surface-secondary, var(--bg-secondary));
+  border: 1px solid var(--border-primary, #e5e7eb);
+  color: var(--text-primary, #1a2332);
   padding: 0.75rem;
   border-radius: 12px;
   font-size: 0.875rem;
@@ -2542,15 +2540,15 @@ if (
 }
 
 .action-button-large:hover:not(.disabled) {
-  background: rgba(255, 255, 255, 0.1);
+  background: var(--surface-tertiary, var(--bg-tertiary));
 }
 
 .action-button-large.danger {
-  color: #ef4444;
+  color: var(--error, #ef4444);
 }
 
 .action-button-large.danger:hover {
-  background: rgba(239, 68, 68, 0.1);
+  background: var(--error-light, rgba(239, 68, 68, 0.1));
 }
 
 .action-button-large.disabled {
@@ -2561,8 +2559,8 @@ if (
 /* 分页控件样式 */
 .notification-pagination {
   padding: 15px 0;
-  border-top: 1px solid rgba(255, 255, 255, 0.1);
-  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
+  border-top: 1px solid var(--border-primary, #e5e7eb);
+  border-bottom: 1px solid var(--border-primary, #e5e7eb);
 }
 
 .pagination-info {
@@ -2571,7 +2569,7 @@ if (
 }
 
 .pagination-text {
-  color: rgba(255, 255, 255, 0.7);
+  color: var(--text-secondary, #4a5568);
   font-size: 0.85rem;
 }
 
@@ -2589,7 +2587,7 @@ if (
 }
 
 .page-size-selector label {
-  color: rgba(255, 255, 255, 0.7);
+  color: var(--text-secondary, #4a5568);
   font-size: 0.85rem;
   white-space: nowrap;
 }
@@ -2605,9 +2603,9 @@ if (
 }
 
 .page-nav-button {
-  background-color: rgba(255, 255, 255, 0.1);
-  border: 1px solid rgba(255, 255, 255, 0.2);
-  color: var(--light);
+  background-color: var(--surface-secondary, var(--bg-secondary));
+  border: 1px solid var(--border-primary, #e5e7eb);
+  color: var(--text-primary, #1a2332);
   width: 32px;
   height: 32px;
   border-radius: 6px;
@@ -2620,8 +2618,8 @@ if (
 }
 
 .page-nav-button:hover:not(:disabled) {
-  background-color: rgba(255, 255, 255, 0.2);
-  border-color: rgba(255, 255, 255, 0.3);
+  background-color: var(--surface-tertiary, var(--bg-tertiary));
+  border-color: var(--border-secondary, #d1d5db);
   transform: translateY(-1px);
 }
 
@@ -2631,9 +2629,9 @@ if (
 }
 
 .page-nav-button:disabled {
-  background-color: rgba(255, 255, 255, 0.05);
-  border-color: rgba(255, 255, 255, 0.1);
-  color: rgba(255, 255, 255, 0.3);
+  background-color: var(--surface-secondary, var(--bg-secondary));
+  border-color: var(--border-primary, #e5e7eb);
+  color: var(--text-disabled, #c5cbd3);
   cursor: not-allowed;
 }
 
@@ -2644,9 +2642,9 @@ if (
 }
 
 .page-number-button {
-  background-color: rgba(255, 255, 255, 0.1);
-  border: 1px solid rgba(255, 255, 255, 0.2);
-  color: var(--light);
+  background-color: var(--surface-secondary, var(--bg-secondary));
+  border: 1px solid var(--border-primary, #e5e7eb);
+  color: var(--text-primary, #1a2332);
   width: 32px;
   height: 32px;
   border-radius: 6px;
@@ -2662,8 +2660,8 @@ if (
 }
 
 .page-number-button:hover:not(:disabled) {
-  background-color: rgba(255, 255, 255, 0.2);
-  border-color: rgba(255, 255, 255, 0.3);
+  background-color: var(--surface-tertiary, var(--bg-tertiary));
+  border-color: var(--border-secondary, #d1d5db);
   transform: translateY(-1px);
 }
 
@@ -2675,23 +2673,23 @@ if (
 .page-number-button.active {
   background-color: var(--primary);
   border-color: var(--primary);
-  color: white;
+  color: var(--btn-primary-text, #ffffff);
 }
 
 .page-number-button.active:hover {
-  background-color: #0952e8;
-  border-color: #0952e8;
+  background-color: var(--primary-hover, #1e3a8a);
+  border-color: var(--primary-hover, #1e3a8a);
 }
 
 .page-number-button:disabled {
-  background-color: rgba(255, 255, 255, 0.05);
-  border-color: rgba(255, 255, 255, 0.1);
-  color: rgba(255, 255, 255, 0.3);
+  background-color: var(--surface-secondary, var(--bg-secondary));
+  border-color: var(--border-primary, #e5e7eb);
+  color: var(--text-disabled, #c5cbd3);
   cursor: not-allowed;
 }
 
 .page-ellipsis {
-  color: rgba(255, 255, 255, 0.5);
+  color: var(--text-tertiary, #6b7280);
   padding: 0 4px;
   font-size: 0.85rem;
 }
@@ -2703,7 +2701,7 @@ if (
   justify-content: center;
   gap: 8px;
   padding: 10px 0;
-  color: rgba(255, 255, 255, 0.7);
+  color: var(--text-secondary, #4a5568);
   font-size: 0.85rem;
   animation: fade-in 0.3s ease;
 }
@@ -2711,7 +2709,7 @@ if (
 .loading-spinner {
   width: 16px;
   height: 16px;
-  border: 2px solid rgba(255, 255, 255, 0.2);
+  border: 2px solid var(--border-secondary, #d1d5db);
   border-top: 2px solid var(--primary);
   border-radius: 50%;
   animation: spin 0.8s cubic-bezier(0.4, 0, 0.2, 1) infinite;
@@ -2744,13 +2742,13 @@ if (
   justify-content: center;
   gap: 10px;
   padding: 15px 0;
-  border-top: 1px solid rgba(255, 255, 255, 0.1);
+  border-top: 1px solid var(--border-primary, #e5e7eb);
 }
 
 .action-button-large {
-  background-color: rgba(255, 255, 255, 0.1);
+  background-color: var(--surface-secondary, var(--bg-secondary));
   border: none;
-  color: var(--light);
+  color: var(--text-primary, #1a2332);
   padding: 8px 16px;
   border-radius: 6px;
   cursor: pointer;
@@ -2759,26 +2757,26 @@ if (
 }
 
 .action-button-large:hover {
-  background-color: rgba(255, 255, 255, 0.2);
+  background-color: var(--surface-tertiary, var(--bg-tertiary));
 }
 
 .action-button-large.danger {
-  color: #ef4444;
+  color: var(--error, #ef4444);
 }
 
 .action-button-large.danger:hover {
-  background-color: rgba(239, 68, 68, 0.2);
+  background-color: var(--error-light, rgba(239, 68, 68, 0.1));
 }
 
 .action-button-large.disabled {
-  background-color: rgba(255, 255, 255, 0.05);
-  color: rgba(255, 255, 255, 0.3);
+  background-color: var(--surface-secondary, var(--bg-secondary));
+  color: var(--text-disabled, #c5cbd3);
   cursor: not-allowed;
   opacity: 0.5;
 }
 
 .action-button-large.disabled:hover {
-  background-color: rgba(255, 255, 255, 0.05);
+  background-color: var(--surface-secondary, var(--bg-secondary));
 }
 
 /* ==================== 移动端设计 ==================== */
@@ -2787,7 +2785,7 @@ if (
 @media (max-width: 768px) {
   .home {
     padding: 0;
-    background-color: #0a0a0f;
+    background-color: var(--bg-primary, #ffffff);
   }
 
   .main-content {
@@ -2806,8 +2804,8 @@ if (
     align-items: center;
     padding: 10px 12px;
     margin: 0;
-    background: linear-gradient(180deg, rgba(11, 90, 254, 0.08) 0%, transparent 100%);
-    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
+    background: linear-gradient(180deg, var(--primary-light, rgba(30, 64, 175, 0.08)) 0%, transparent 100%);
+    border-bottom: 1px solid var(--border-primary, #e5e7eb);
   }
 
   .logo-section {
@@ -2827,7 +2825,7 @@ if (
   .logo-divider {
     height: 28px;
     width: 1px;
-    background: rgba(255, 255, 255, 0.15);
+    background: var(--border-secondary, #d1d5db);
   }
 
   /* 移动端的主页面里不需要写学校名，保持简洁 */
@@ -2852,8 +2850,8 @@ if (
   .user-avatar-wrapper {
     width: 32px;
     height: 32px;
-    background: rgba(255, 255, 255, 0.05);
-    border-color: rgba(255, 255, 255, 0.1);
+    background: var(--surface-secondary, var(--bg-secondary));
+    border-color: var(--border-primary, #e5e7eb);
   }
 
   .user-avatar-placeholder {
@@ -2880,23 +2878,23 @@ if (
     border-radius: 12px;
     font-size: 14px;
     font-weight: 600;
-    background: rgba(255, 255, 255, 0.08);
+    background: var(--surface-secondary, var(--bg-secondary));
     backdrop-filter: blur(10px);
     -webkit-backdrop-filter: blur(10px);
-    color: white;
-    border: 1px solid rgba(255, 255, 255, 0.1);
-    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
+    color: var(--text-primary, #1a2332);
+    border: 1px solid var(--border-primary, #e5e7eb);
+    box-shadow: var(--shadow-sm, 0 1px 2px rgba(0, 0, 0, 0.05));
     transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
   }
 
   .login-options .login-btn :deep(.icon) {
-    color: #3b82f6;
+    color: var(--primary, #1e40af);
   }
 
   .login-options .login-btn:active {
     transform: scale(0.95);
-    background: rgba(255, 255, 255, 0.15);
-    border-color: rgba(59, 130, 246, 0.4);
+    background: var(--surface-tertiary, var(--bg-tertiary));
+    border-color: var(--primary-border, rgba(30, 64, 175, 0.15));
   }
 
   /* Footer 间距优化 */
@@ -2925,13 +2923,13 @@ if (
     gap: 0;
     padding: 0 0.5rem;
     height: 64px;
-    background: rgba(28, 28, 30, 0.9);
+    background: var(--surface-primary, var(--bg-primary));
     backdrop-filter: blur(20px) saturate(180%);
     -webkit-backdrop-filter: blur(20px) saturate(180%);
-    border: 1px solid rgba(255, 255, 255, 0.1);
+    border: 1px solid var(--border-primary, #e5e7eb);
     border-radius: 9999px;
     z-index: 1000;
-    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.6);
+    box-shadow: var(--shadow-xl, 0 20px 25px rgba(0, 0, 0, 0.1));
   }
 
   .section-tab {
@@ -2943,7 +2941,7 @@ if (
     padding: 0; /* 移除固定内边距，改用 flex 居中 */
     font-size: 10px;
     font-weight: 500;
-    color: #71717a; /* text-zinc-500 */
+    color: var(--text-tertiary, #6b7280);
     display: flex;
     flex-direction: column;
     align-items: center;
@@ -2968,15 +2966,14 @@ if (
   }
 
   .section-tab.active {
-    color: #3b82f6 !important; /* text-blue-500 - Force blue */
+    color: var(--primary, #1e40af) !important;
     background: transparent !important;
     transform: none !important;
-    text-shadow: 0 0 12px rgba(59, 130, 246, 0.6); /* Text Glow */
   }
 
   /* Prevent hover from turning it white on mobile */
   .section-tab.active:hover {
-    color: #3b82f6 !important;
+    color: var(--primary, #1e40af) !important;
     background: transparent !important;
     box-shadow: none !important;
   }
@@ -2985,7 +2982,6 @@ if (
     opacity: 1;
     color: currentColor;
     transform: none;
-    filter: drop-shadow(0 0 8px rgba(59, 130, 246, 0.5)); /* Icon Glow */
   }
 
   .section-tab.active .tab-text {
@@ -3034,10 +3030,10 @@ if (
     right: 0;
     width: 8px;
     height: 8px;
-    background: #0b5afe;
+    background: var(--primary, #1e40af);
     border-radius: 50%;
-    border: 1.5px solid #0a0a0f;
-    box-shadow: 0 0 5px rgba(11, 90, 254, 0.4);
+    border: 1.5px solid var(--surface-primary, var(--bg-primary));
+    box-shadow: 0 0 5px var(--primary-light, rgba(30, 64, 175, 0.08));
     z-index: 2;
   }
 
@@ -3096,8 +3092,8 @@ if (
     padding: 6px 14px;
     font-size: 12px;
     border-radius: 6px;
-    background: rgba(11, 90, 254, 0.15);
-    border: 1px solid rgba(11, 90, 254, 0.3);
+    background: var(--primary-light, rgba(30, 64, 175, 0.08));
+    border: 1px solid var(--primary-border, rgba(30, 64, 175, 0.15));
   }
 }