feat: 功能优化

frontend/app/web-gold/src/components/GradientButton.vue

@@ -103,14 +103,11 @@ const buttonClass = computed(() => {
   cursor: pointer;
   transition: all 0.2s ease;
   background: var(--color-slate-900);
-  box-shadow: 0 10px 15px -3px rgba(59, 130, 246, 0.2), 0 4px 6px -2px rgba(59, 130, 246, 0.1);
   user-select: none;
 }
 
 .gradient-button:hover {
   background: var(--color-slate-800);
-  transform: translateY(-1px);
-  box-shadow: 0 20px 25px -5px rgba(59, 130, 246, 0.3), 0 10px 10px -5px rgba(59, 130, 246, 0.15);
 }
 
 .gradient-button:active {

frontend/app/web-gold/src/components/SidebarNav.vue

@@ -45,7 +45,6 @@ const items = computed(() => {
       children: [
         { name: '素材列表', label: '素材列表', icon: 'grid' },
         { name: '智能混剪', label: '智能混剪', icon: 'scissors' },
-        { name: '素材分组', label: '素材分组', icon: 'folder' },
       ]
     },
     {