diff --git a/resources/views/rd/planning-design/index.blade.php b/resources/views/rd/planning-design/index.blade.php
index 1b31754a..660edb54 100644
--- a/resources/views/rd/planning-design/index.blade.php
+++ b/resources/views/rd/planning-design/index.blade.php
@@ -784,6 +784,40 @@
 .sb-ctx-color-swatch:hover { transform: scale(1.15); }
 .sb-ctx-color-swatch.active { border-color: #4338ca; }
 
+/* Block style inheritance — 부모 .sb-block에 설정된 color/font-size/font-weight 등을 자식에게 전달 */
+.sb-block[style*="color"] .sb-blk-text,
+.sb-block[style*="color"] .sb-blk-heading,
+.sb-block[style*="color"] .sb-blk-callout-text,
+.sb-block[style*="color"] .sb-blk-code,
+.sb-block[style*="color"] .sb-blk-todo-text,
+.sb-block[style*="color"] .sb-blk-mock-card-title,
+.sb-block[style*="color"] .sb-blk-mock-card-body,
+.sb-block[style*="color"] .sb-blk-mockup-label,
+.sb-block[style*="color"] .sb-blk-table th,
+.sb-block[style*="color"] .sb-blk-table td,
+.sb-block[style*="color"] .sb-blk-mock-btn { color: inherit; }
+
+.sb-block[style*="font-size"] .sb-blk-text,
+.sb-block[style*="font-size"] .sb-blk-heading,
+.sb-block[style*="font-size"] .sb-blk-callout-text,
+.sb-block[style*="font-size"] .sb-blk-todo-text,
+.sb-block[style*="font-size"] .sb-blk-mock-card-title,
+.sb-block[style*="font-size"] .sb-blk-mock-card-body { font-size: inherit; }
+
+.sb-block[style*="font-weight"] .sb-blk-text,
+.sb-block[style*="font-weight"] .sb-blk-heading,
+.sb-block[style*="font-weight"] .sb-blk-callout-text,
+.sb-block[style*="font-weight"] .sb-blk-todo-text { font-weight: inherit; }
+
+.sb-block[style*="font-style"] .sb-blk-text,
+.sb-block[style*="font-style"] .sb-blk-heading,
+.sb-block[style*="font-style"] .sb-blk-callout-text,
+.sb-block[style*="font-style"] .sb-blk-todo-text { font-style: inherit; }
+
+.sb-block[style*="text-align"] .sb-blk-text,
+.sb-block[style*="text-align"] .sb-blk-heading,
+.sb-block[style*="text-align"] .sb-blk-callout-text { text-align: inherit; }
+
 /* Block type styles */
 .sb-blk-text { padding: 6px 8px; font-size: 13px; line-height: 1.7; min-height: 24px; outline: none; color: #334155; }
 .sb-blk-text:empty::before { content: attr(data-placeholder); color: #c8d0da; }