添加前期分析板块9张图片结构，统一格式确保底部对齐

css/style.css

@@ -528,16 +528,60 @@ body {
     animation: fadeInUp 0.6s ease-out;
 }
 
-.card-image placeholder-img img {
-       width: 100%;
-       height: 100%;
-       object-fit: cover;
-       display: block;
-   }
+/* ========================================
+   前期分析板块 - 9张图片统一格式
+   ======================================== */
+.analysis-grid {
+    /* 3列布局，确保图片上下底平齐 */
+    grid-template-columns: repeat(3, 1fr) !important;
+    gap: var(--spacing-md);
+}
 
-og-image.jpg img {
-       width: 100%;
-       height: 100%;
-       object-fit: cover;
-       display: block;
-   }
+.analysis-img {
+    /* 固定高度，确保所有图片底部对齐 */
+    height: 280px;
+    width: 100%;
+    overflow: hidden;
+    position: relative;
+    background: linear-gradient(135deg, var(--primary-muted) 0%, var(--primary-light) 100%);
+}
+
+.analysis-img img {
+    /* 关键：使用object-fit: cover确保图片填满容器且不变形 */
+    width: 100%;
+    height: 100%;
+    object-fit: cover;
+    object-position: center;
+    display: block;
+}
+
+.analysis-img .placeholder-text {
+    /* 占位文字样式 */
+    width: 100%;
+    height: 100%;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    color: var(--primary-dark);
+    font-size: 1.1rem;
+    font-weight: 500;
+    letter-spacing: 1px;
+}
+
+/* 响应式：平板设备改为2列 */
+@media (max-width: 1024px) {
+    .analysis-grid {
+        grid-template-columns: repeat(2, 1fr) !important;
+    }
+}
+
+/* 响应式：手机设备改为1列 */
+@media (max-width: 768px) {
+    .analysis-grid {
+        grid-template-columns: 1fr !important;
+    }
+    
+    .analysis-img {
+        height: 250px;
+    }
+}