fix(ui): 批量替换所有组件中残留的硬编码深色值以彻底支持浅色主题

app/components/Admin/SchedulePrinter.vue

@@ -1383,15 +1383,15 @@ watch(
 /* 预览区域和打印样式的核心CSS - 保持原生CSS以确保精确控制 */
 
 .preview-content {
-  background: #ffffff;
+  background: var(--card-bg, #ffffff);
   padding: 0;
   position: relative;
 }
 
 /* 打印页面样式 */
 .print-page {
-  background: #ffffff;
-  color: #000000;
+  background: var(--card-bg, #ffffff);
+  color: var(--text-primary, #000000);
   width: 100%;
   margin: 0 auto;
   padding: 30px;
@@ -1426,7 +1426,7 @@ watch(
 .logo-divider {
   width: 2px;
   height: 60px;
-  background: linear-gradient(to bottom, #ddd, #999, #ddd);
+  background: linear-gradient(to bottom, var(--border-secondary, #dddddd), #999, #ddd);
   border-radius: 1px;
   margin: 0 4px;
 }
@@ -1445,19 +1445,19 @@ watch(
   font-size: 24px;
   font-weight: normal;
   margin: 0 0 4px 0;
-  color: #000;
+  color: var(--text-primary, #000);
 }
 
 .title-section h2 {
   font-size: 18px;
   font-weight: 500;
   margin: 0;
-  color: #666;
+  color: var(--text-quaternary, #666666);
 }
 
 .date-info {
   font-size: 14px;
-  color: #666;
+  color: var(--text-quaternary, #666666);
   text-align: right;
   display: flex;
   align-items: flex-start;
@@ -1477,14 +1477,14 @@ watch(
 .no-data-message {
   text-align: center;
   padding: 60px 20px;
-  color: #666;
+  color: var(--text-quaternary, #666666);
 }
 
 .no-data-icon {
   width: 64px;
   height: 64px;
   margin: 0 auto 20px;
-  color: #ccc;
+  color: var(--text-secondary, #cccccc);
 }
 
 .no-data-icon svg {
@@ -1496,7 +1496,7 @@ watch(
   font-size: 18px;
   font-weight: 500;
   margin: 0 0 12px 0;
-  color: #333;
+  color: var(--text-quaternary, #333333);
 }
 
 .no-data-message p {
@@ -1512,15 +1512,15 @@ watch(
   font-weight: bold;
   margin: 24px 0 12px 0;
   padding: 8px 12px;
-  border-bottom: 2px solid #ddd;
+  border-bottom: 2px solid var(--border-secondary, #ddd);
   background: #f8f9fa;
-  color: #333;
+  color: var(--text-quaternary, #333333);
   border-radius: 4px 4px 0 0;
 }
 
 .playtime-group .group-title {
   background: #e3f2fd;
-  border-bottom-color: #2196f3;
+  border-bottom-color: var(--border-secondary, #2196f3);
   color: #1565c0;
 }
 
@@ -1533,7 +1533,7 @@ watch(
 .group-count {
   font-size: 14px;
   font-weight: normal;
-  color: #666;
+  color: var(--text-quaternary, #666666);
   margin-left: 8px;
 }
 
@@ -1547,7 +1547,7 @@ watch(
   margin: 16px 0 8px 0;
   padding: 6px 10px;
   background: #f0f8ff;
-  border-left: 3px solid #2196f3;
+  border-left: 3px solid var(--border-secondary, #2196f3);
   color: #1565c0;
   border-radius: 0 4px 4px 0;
 }
@@ -1555,7 +1555,7 @@ watch(
 .playtime-count {
   font-size: 12px;
   font-weight: normal;
-  color: #666;
+  color: var(--text-quaternary, #666666);
   margin-left: 6px;
 }
 
@@ -1570,7 +1570,7 @@ watch(
   padding-top: 16px;
   border-top: 1px solid #e5e5e5;
   font-size: 12px;
-  color: #666;
+  color: var(--text-quaternary, #666666);
 }
 
 .footer-left {