style: add global styles for custom layout components

src/global.less

@@ -0,0 +1,100 @@
+@import '~antd/es/style/reset.css';
+
+// 全局样式
+body {
+  margin: 0;
+  padding: 0;
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial,
+    sans-serif;
+  font-size: 14px;
+  line-height: 1.5715;
+  color: #262626;
+  background-color: #f5f5f5;
+}
+
+// 自定义Logo样式
+.custom-logo {
+  display: flex;
+  align-items: center;
+  height: 64px;
+  padding: 0 16px;
+  border-bottom: 1px solid #f0f0f0;
+  transition: all 0.2s cubic-bezier(0.645, 0.045, 0.355, 1.000);
+  background: #ffffff;
+}
+
+.custom-logo .logo-icon {
+  font-size: 32px;
+  min-width: 32px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+
+.custom-logo .logo-text {
+  margin-left: 12px;
+  font-size: 16px;
+  font-weight: 600;
+  color: #262626;
+  white-space: nowrap;
+  opacity: 1;
+  transition: opacity 0.2s;
+}
+
+// 折叠状态
+.ant-layout-sider-collapsed .custom-logo {
+  padding: 0;
+  justify-content: center;
+}
+
+.ant-layout-sider-collapsed .custom-logo .logo-text {
+  display: none;
+}
+
+// 自定义Header样式
+.custom-header {
+  display: flex !important;
+  justify-content: space-between;
+  align-items: center;
+  padding: 0 24px !important;
+  background: #ffffff !important;
+  border-bottom: 1px solid #f0f0f0;
+  line-height: 64px;
+}
+
+.custom-header .header-left {
+  flex: 1;
+}
+
+.custom-header .header-right {
+  display: flex;
+  align-items: center;
+  gap: 16px;
+}
+
+.custom-header .header-right > div {
+  display: flex;
+  align-items: center;
+  transition: opacity 0.2s;
+}
+
+.custom-header .header-right > div:hover {
+  opacity: 0.8;
+}
+
+// 内容区域
+.ant-pro-grid-content {
+  padding: 24px;
+}
+
+// 页面容器卡片
+.ant-pro-page-container {
+  background: transparent;
+}
+
+.ant-pro-page-container .ant-pro-page-container-warp {
+  background: #ffffff;
+  border-radius: 8px;
+  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.03);
+  padding: 24px;
+}