追加:改进 [暗色模式] 中自定义主色调对 变量标签<var> 的字体颜色,并增加 文本阴影[text-shadow]

-修复 [暗色模式] 下 变量标签<var> 的字体颜色 无法跟随自定义主色调
-清理重复的代码

htdocs/luci-static/argon/css/cascade.css

@@ -1239,7 +1239,8 @@ div.cbi-value var,
 td.cbi-value-field var,
 .td.cbi-value-field var {
   font-style: italic;
-  color: #0069D6;
+  color: var(--primary);
+  text-shadow: 1px 1px 2px #ccc;
 }
 small {
   font-size: 90%;
@@ -2716,11 +2717,6 @@ td > .ifacebadge,
 .cbi-section-remove {
   padding: 0.5rem;
 }
-div.cbi-value var,
-td.cbi-value-field var {
-  font-style: italic;
-  color: #0069D6;
-}
 .cbi-optionals {
   padding: 1rem 1rem 0 1rem;
   border-top: 1px solid #CCC;

htdocs/luci-static/argon/css/dark.css

@@ -516,9 +516,11 @@ img[src="/luci-static/resources/icons/loading.gif"] {
 }
 
 div.cbi-value var,
-td.cbi-value-field var {
+td.cbi-value-field var,
+.td.cbi-value-field var {
   color: #483d8b;
-  color: var(--dark-primary);
+  color: var(--dark_webkit-any-link);
+  text-shadow: 1px 1px 2px #000;
 }
 
 #diag-rc-output>pre {

htdocs/luci-static/argon/less/cascade.less

@@ -1473,7 +1473,8 @@ div.cbi-value var,
 td.cbi-value-field var,
 .td.cbi-value-field var {
     font-style: italic;
-    color: #0069D6;
+    color: var(--primary);
+    text-shadow: 1px 1px 2px #ccc;
 }
 
 small {
@@ -3306,12 +3307,6 @@ td>.ifacebadge,
     padding: 0.5rem;
 }
 
-div.cbi-value var,
-td.cbi-value-field var {
-    font-style: italic;
-    color: #0069D6;
-}
-
 
 .cbi-optionals {
     padding: 1rem 1rem 0 1rem;

htdocs/luci-static/argon/less/dark.less

@@ -585,9 +585,11 @@ img[src="/luci-static/resources/icons/loading.gif"] {
 }
 
 div.cbi-value var,
-td.cbi-value-field var {
+td.cbi-value-field var,
+.td.cbi-value-field var {
     color: #483d8b;
-    color: var(--dark-primary);
+    color: var(--dark_webkit-any-link);
+    text-shadow: 1px 1px 2px #000;
 }
 
 #diag-rc-output>pre {