优化设计图纸布局：立面图/剖面图单列展示，总平面/平面图高度增加25%

css/style.css

@@ -1201,6 +1201,86 @@ body {
     height: auto;
 }
 
+/* ========================================
+   设计图纸 - 单列布局样式
+   ======================================== */
+
+/* 总平面图和一层平面图 - 高度增加三分之一 */
+.drawing-full.enlarged {
+    max-height: 100vh !important;  /* 从80vh增加到100vh，约增加25% */
+}
+
+.drawing-full.enlarged img {
+    max-height: 100vh !important;
+}
+
+/* 单列布局容器 */
+.single-column-layout {
+    display: flex;
+    flex-direction: column;
+    gap: var(--spacing-lg);
+}
+
+/* 全宽卡片 */
+.full-width-card {
+    width: 100%;
+    max-width: none;
+}
+
+/* 全宽图片容器 */
+.drawing-img.wide-full {
+    height: auto;
+    min-height: 500px;
+    max-height: 70vh;
+}
+
+.drawing-img.wide-full img {
+    width: 100%;
+    height: auto;
+    max-height: 70vh;
+    object-fit: contain;
+    background: #FFFFFF;
+}
+
+/* 响应式调整 */
+@media (max-width: 1024px) {
+    .drawing-full.enlarged {
+        max-height: 80vh !important;
+    }
+    
+    .drawing-full.enlarged img {
+        max-height: 80vh !important;
+    }
+    
+    .drawing-img.wide-full {
+        min-height: 400px;
+        max-height: 60vh;
+    }
+    
+    .drawing-img.wide-full img {
+        max-height: 60vh;
+    }
+}
+
+@media (max-width: 768px) {
+    .drawing-full.enlarged {
+        max-height: 60vh !important;
+    }
+    
+    .drawing-full.enlarged img {
+        max-height: 60vh !important;
+    }
+    
+    .drawing-img.wide-full {
+        min-height: 300px;
+        max-height: 50vh;
+    }
+    
+    .drawing-img.wide-full img {
+        max-height: 50vh;
+    }
+}
+
 /* ========================================
    响应式调整
    ======================================== */