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/ScheduleItemPrint.vue

@@ -112,7 +112,7 @@ const handleImageError = (event) => {
   justify-content: center;
   font-weight: bold;
   font-size: 14px;
-  color: #333;
+  color: var(--text-quaternary, #333333);
   flex-shrink: 0;
 }
 
@@ -141,7 +141,7 @@ const handleImageError = (event) => {
   display: none;
   align-items: center;
   justify-content: center;
-  color: #999;
+  color: var(--text-tertiary, #999999);
 }
 
 .cover-placeholder.show {
@@ -161,7 +161,7 @@ const handleImageError = (event) => {
 .song-title {
   font-weight: bold;
   font-size: 16px;
-  color: #333;
+  color: var(--text-quaternary, #333333);
   margin-bottom: 2px;
   white-space: nowrap;
   overflow: hidden;
@@ -176,7 +176,7 @@ const handleImageError = (event) => {
   display: inline-block;
   padding: 1px 4px;
   background: #e3f2fd;
-  border: 1px solid #2196f3;
+  border: 1px solid var(--border-secondary, #2196f3);
   border-radius: 3px;
   color: #1976d2;
   font-size: 10px;
@@ -186,7 +186,7 @@ const handleImageError = (event) => {
 
 .song-artist {
   font-size: 14px;
-  color: #666;
+  color: var(--text-quaternary, #666666);
   white-space: nowrap;
   overflow: hidden;
   text-overflow: ellipsis;
@@ -197,7 +197,7 @@ const handleImageError = (event) => {
   display: flex;
   align-items: center;
   font-size: 12px;
-  color: #666;
+  color: var(--text-quaternary, #666666);
   white-space: nowrap;
 }
 
@@ -207,14 +207,14 @@ const handleImageError = (event) => {
 }
 
 .value {
-  color: #333;
+  color: var(--text-quaternary, #333333);
 }
 
 /* 打印样式 */
 @media print {
   .schedule-item-print {
-    color: #000 !important;
-    background: #fff !important;
+    color: var(--text-primary, #000) !important;
+    background: var(--card-bg, #fff) !important;
     width: 100% !important;
     max-width: none !important;
     box-sizing: border-box !important;
@@ -230,7 +230,7 @@ const handleImageError = (event) => {
 
   .sequence-number {
     background: #f0f0f0 !important;
-    color: #000 !important;
+    color: var(--text-primary, #000) !important;
     width: 30px !important;
     height: 30px !important;
     flex-shrink: 0 !important;
@@ -264,7 +264,7 @@ const handleImageError = (event) => {
   }
 
   .song-title {
-    color: #000 !important;
+    color: var(--text-primary, #000) !important;
     font-size: 16px !important;
     white-space: nowrap !important;
     overflow: hidden !important;
@@ -274,11 +274,11 @@ const handleImageError = (event) => {
   .song-artist,
   .label,
   .value {
-    color: #333 !important;
+    color: var(--text-quaternary, #333333) !important;
   }
 
   .time-range {
-    color: #666 !important;
+    color: var(--text-quaternary, #666666) !important;
   }
 
   .requester-info,