diff --git a/prompt-builder.js b/prompt-builder.js
index ef011fa..647363f 100644
--- a/prompt-builder.js
+++ b/prompt-builder.js
@@ -238,6 +238,9 @@ function blockUsesWorldInfoContent(block = {}) {
 }
 
 function messageUsesWorldInfoContent(message = {}) {
+  if (message?.derivedFromWorldInfo === true) {
+    return true;
+  }
   if (usesWorldInfoSourceKey(message?.sourceKey)) {
     return true;
   }
@@ -618,6 +621,9 @@ function sanitizePromptMessages(
           injectionMode: String(
             sanitized.value?.injectionMode || message?.injectionMode || "",
           ),
+          derivedFromWorldInfo:
+            sanitized.value?.derivedFromWorldInfo === true ||
+            message?.derivedFromWorldInfo === true,
         },
       );
       return executionMessage;
@@ -1157,6 +1163,7 @@ export async function buildTaskPrompt(settings = {}, taskType, context = {}) {
     if (!block || block.enabled === false) continue;
 
     const role = normalizeRole(block.role);
+    const blockDerivedFromWorldInfo = blockUsesWorldInfoContent(block);
     let content = "";
 
     if (block.type === "legacyPrompt") {
@@ -1182,7 +1189,7 @@ export async function buildTaskPrompt(settings = {}, taskType, context = {}) {
       );
     }
 
-    const blockApplyMvu = !(isCustomFilter && blockUsesWorldInfoContent(block));
+    const blockApplyMvu = !(isCustomFilter && blockDerivedFromWorldInfo);
     const sanitizedBlockContent = sanitizeTaskPromptText(
       settings,
       taskType,
@@ -1229,6 +1236,7 @@ export async function buildTaskPrompt(settings = {}, taskType, context = {}) {
       order: Number.isFinite(Number(block.order))
         ? Number(block.order)
         : block._orderIndex,
+      derivedFromWorldInfo: blockDerivedFromWorldInfo,
       injectionMode: mode,
       delivery: resolveBlockDelivery(block),
       effectiveDelivery: resolveBlockDelivery(block),
@@ -1242,6 +1250,7 @@ export async function buildTaskPrompt(settings = {}, taskType, context = {}) {
       blockType: String(block.type || "custom"),
       sourceKey: String(block.sourceKey || ""),
       injectionMode: mode,
+      derivedFromWorldInfo: blockDerivedFromWorldInfo,
     });
     if (executionMessage) {
       executionMessages.push(executionMessage);
@@ -1265,9 +1274,29 @@ export async function buildTaskPrompt(settings = {}, taskType, context = {}) {
       assistantRoleBlockCount += 1;
     }
     if (mode === "prepend") {
-      customMessages.unshift({ role, content });
+      customMessages.unshift({
+        role,
+        content,
+        source: "profile-block",
+        blockId: String(block.id || ""),
+        blockName: String(block.name || ""),
+        blockType: String(block.type || "custom"),
+        sourceKey: String(block.sourceKey || ""),
+        injectionMode: mode,
+        derivedFromWorldInfo: blockDerivedFromWorldInfo,
+      });
     } else {
-      customMessages.push({ role, content });
+      customMessages.push({
+        role,
+        content,
+        source: "profile-block",
+        blockId: String(block.id || ""),
+        blockName: String(block.name || ""),
+        blockType: String(block.type || "custom"),
+        sourceKey: String(block.sourceKey || ""),
+        injectionMode: mode,
+        derivedFromWorldInfo: blockDerivedFromWorldInfo,
+      });
     }
   }
 
@@ -1436,6 +1465,7 @@ export function buildTaskLlmPayload(promptBuild = null, fallbackUserPrompt = "")
             blockType: String(message.blockType || ""),
             sourceKey: String(message.sourceKey || ""),
             injectionMode: String(message.injectionMode || ""),
+            derivedFromWorldInfo: message.derivedFromWorldInfo === true,
           }),
         )
         .filter(Boolean)
diff --git a/style.css b/style.css
index 75dd641..28ffa9d 100644
--- a/style.css
+++ b/style.css
@@ -1338,12 +1338,15 @@
   color: var(--bme-on-surface) !important;
   cursor: pointer;
   padding-right: 36px;
+  /* 影响原生下拉列表用亮色还是暗色绘制（否则在浅色面板下 option 可能出现黑底） */
+  color-scheme: dark;
 }
 
 :root[data-bme-color-scheme="light"]
   #st-bme-panel
   :is(select.bme-config-input, select.bme-filter-select, select.bme-task-builtin-select) {
   background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23334155' stroke-width='2.25' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E") !important;
+  color-scheme: light;
 }
 
 #st-bme-panel select.bme-config-input option,
@@ -1353,6 +1356,31 @@
   color: var(--bme-on-surface);
 }
 
+/* 原生 option 在部分浏览器/系统上不用 CSS 变量；亮色主题用实色保证每项都是浅底深字 */
+:root[data-bme-color-scheme="light"] #st-bme-panel select option {
+  background-color: #ffffff !important;
+  color: #1c1917 !important;
+}
+
+:root[data-bme-color-scheme="light"] #st-bme-panel select option:checked,
+:root[data-bme-color-scheme="light"] #st-bme-panel select option:hover,
+:root[data-bme-color-scheme="light"] #st-bme-panel select option:focus {
+  background-color: #e7e5e4 !important;
+  color: #1c1917 !important;
+}
+
+:root[data-bme-color-scheme="dark"] #st-bme-panel select option {
+  background-color: #2a2a2d !important;
+  color: #e4e1e6 !important;
+}
+
+:root[data-bme-color-scheme="dark"] #st-bme-panel select option:checked,
+:root[data-bme-color-scheme="dark"] #st-bme-panel select option:hover,
+:root[data-bme-color-scheme="dark"] #st-bme-panel select option:focus {
+  background-color: #3d3d42 !important;
+  color: #f4f4f5 !important;
+}
+
 #st-bme-panel input.bme-config-input:-webkit-autofill,
 #st-bme-panel input.bme-config-input:-webkit-autofill:hover,
 #st-bme-panel input.bme-config-input:-webkit-autofill:focus,
diff --git a/tests/task-worldinfo.mjs b/tests/task-worldinfo.mjs
index ed115dc..0800490 100644
--- a/tests/task-worldinfo.mjs
+++ b/tests/task-worldinfo.mjs
@@ -670,6 +670,18 @@ try {
     customInterpolatedPromptBuild.systemPrompt,
     /<status_current_variable>secret=true<\/status_current_variable>/,
   );
+  const customInterpolatedPayload = buildTaskLlmPayload(
+    customInterpolatedPromptBuild,
+    "unused fallback",
+  );
+  assert.equal(
+    customInterpolatedPayload.promptMessages.some((message) =>
+      /<status_current_variable>secret=true<\/status_current_variable>/.test(
+        message.content,
+      ),
+    ),
+    true,
+  );
 
   const noWorldInfoBlockSettings = {
     taskProfiles: {