style(InvestmentCalendar): 优化日历组件样式

- 调整日历单元格样式和间距
- 优化事件标签显示效果
- 适配黑金主题配色

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/views/Center/components/InvestmentCalendar.less

@@ -1,23 +1,37 @@
-// src/views/Dashboard/components/InvestmentCalendar.less
+// src/views/Center/components/InvestmentCalendar.less
+// 黑金主题日历样式
 
-// 颜色变量（与日历视图按钮一致的紫色）
+// ==================== 颜色变量 ====================
-@primary-color: #805AD5;
+// 黑金主题主色
-@primary-hover: #6B46C1;
+@gold-400: #D4AF37;
-@border-color: #e2e8f0;
+@gold-500: #B8960C;
-@text-color: #2d3748;
+@gold-gradient: linear-gradient(135deg, #D4AF37 0%, #F5E6A3 100%);
-@today-bg: #e6f3ff;
 
-// 暗色模式颜色
+// 背景色
-@dark-border-color: #4a5568;
+@bg-deep: #0A0A14;
-@dark-text-color: #e2e8f0;
+@bg-primary: #0F0F1A;
-@dark-today-bg: #2d3748;
+@bg-elevated: #1A1A2E;
+@bg-surface: #252540;
 
-// FullCalendar 自定义样式
+// 边框色
+@line-subtle: rgba(212, 175, 55, 0.1);
+@line-default: rgba(212, 175, 55, 0.2);
+@line-emphasis: rgba(212, 175, 55, 0.4);
+
+// 文字色
+@text-primary: rgba(255, 255, 255, 0.95);
+@text-secondary: rgba(255, 255, 255, 0.6);
+@text-muted: rgba(255, 255, 255, 0.4);
+
+// 今天高亮背景
+@today-bg: rgba(212, 175, 55, 0.1);
+
+// ==================== FullCalendar 样式 ====================
 .fc {
   font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
 }
 
-// 工具栏按钮紧密排列（提升优先级）
+// 工具栏布局
 .fc .fc-toolbar.fc-header-toolbar {
   justify-content: flex-start !important;
   gap: 8px !important;
@@ -28,68 +42,96 @@
   gap: 4px !important;
 }
 
+// 标题金色渐变
+.fc .fc-toolbar-title {
+  background: @gold-gradient;
+  -webkit-background-clip: text;
+  -webkit-text-fill-color: transparent;
+  background-clip: text;
+  font-weight: 700;
+}
+
+// 表格边框
 .fc-theme-standard {
   td, th {
-    border-color: @border-color;
+    border-color: @line-default;
   }
 }
 
-// 按钮样式（针对 fc-button-group 内的按钮）
+// 导航按钮样式
-.fc .fc-toolbar .fc-button-group .fc-button {
+.fc .fc-toolbar .fc-button-group .fc-button,
-  background-color: @primary-color !important;
+.fc .fc-button-primary {
-  border-color: @primary-color !important;
+  background-color: @gold-400 !important;
-  color: #fff !important;
+  border-color: @gold-400 !important;
+  color: @bg-deep !important;
+  font-weight: 600 !important;
+  transition: all 0.3s ease;
 
   &:hover {
-    background-color: @primary-hover !important;
+    background-color: @gold-500 !important;
-    border-color: @primary-hover !important;
+    border-color: @gold-500 !important;
+    transform: translateY(-1px);
   }
 
   &:not(:disabled):active,
   &:not(:disabled).fc-button-active {
-    background-color: @primary-hover !important;
+    background-color: @gold-500 !important;
-    border-color: @primary-hover !important;
+    border-color: @gold-500 !important;
   }
 }
 
 // 今天按钮样式
 .fc .fc-toolbar .fc-today-button {
-  background-color: @primary-color !important;
+  background-color: @gold-400 !important;
-  border-color: @primary-color !important;
+  border-color: @gold-400 !important;
-  color: #fff !important;
+  color: @bg-deep !important;
+  font-weight: 600 !important;
 
   &:hover {
-    background-color: @primary-hover !important;
+    background-color: @gold-500 !important;
-    border-color: @primary-hover !important;
+    border-color: @gold-500 !important;
   }
 
   // 选中状态（disabled 表示当前视图包含今天）
   &:disabled {
-    background-color: @primary-hover !important;
+    background-color: @gold-500 !important;
-    border-color: @primary-hover !important;
+    border-color: @gold-500 !important;
     opacity: 1 !important;
-    color: #fff !important;
+    color: @bg-deep !important;
   }
 }
 
+// 星期头
+.fc-col-header-cell-cushion {
+  color: @text-secondary;
+  font-weight: 500;
+}
+
 // 日期数字
 .fc-daygrid-day-number {
-  color: @text-color;
+  color: @text-primary;
   font-weight: 500;
 }
 
 // 今天高亮
 .fc-daygrid-day.fc-day-today {
   background-color: @today-bg !important;
-  border: 2px solid @primary-color !important;
+  border: 2px solid @gold-400 !important;
 }
 
 // 事件样式
 .fc-event {
   border: none;
-  padding: 2px 4px;
+  padding: 2px 6px;
   font-size: 12px;
   font-weight: 500;
+  border-radius: 4px;
+  transition: all 0.2s ease;
+
+  &:hover {
+    transform: scale(1.02);
+    box-shadow: 0 2px 8px rgba(212, 175, 55, 0.3);
+  }
 }
 
 .fc-daygrid-event-dot {
@@ -100,24 +142,53 @@
   margin-top: 2px;
 }
 
-// 暗色模式支持
+// 更多事件链接
+.fc-daygrid-more-link {
+  color: @gold-400;
+  font-weight: 500;
+
+  &:hover {
+    color: @gold-500;
+  }
+}
+
+// 弹出层样式
+.fc-popover {
+  background: @bg-elevated;
+  border: 1px solid @line-default;
+  border-radius: 8px;
+  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
+
+  .fc-popover-header {
+    background: rgba(212, 175, 55, 0.1);
+    color: @gold-400;
+    font-weight: 600;
+  }
+
+  .fc-popover-body {
+    background: @bg-elevated;
+  }
+}
+
+// ==================== 暗色模式支持 ====================
+// 由于整体设计已是暗色，这里主要是对比度微调
 @media (prefers-color-scheme: dark) {
   .fc-theme-standard {
     td, th {
-      border-color: @dark-border-color;
+      border-color: @line-default;
     }
   }
 
   .fc-daygrid-day-number {
-    color: @dark-text-color;
+    color: @text-primary;
   }
 
   .fc-daygrid-day.fc-day-today {
-    background-color: @dark-today-bg !important;
+    background-color: @today-bg !important;
   }
 
   .fc-col-header-cell-cushion,
   .fc-daygrid-day-number {
-    color: @dark-text-color;
+    color: @text-primary;
   }
 }