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README.md

@@ -111,7 +111,7 @@ homepage: https://vlar-group.github.io/PhysInOne.html
 
 <div style="display: flex; align-items: flex-start; gap: 24px;">
 
-  <aside style="min-width: 220px; max-width: 240px; position: sticky; top: 16px; padding: 16px; border: 1px solid #e5e7eb; border-radius: 12px; background: #f9fafb; font-size: 14px; line-height: 1.9;">
+  <aside style="min-width: 220px; max-width: 240px; position: sticky; top: 16px; padding: 16px; border: 1px solid #e5e7eb; border-radius: 12px; background: #f9fafb; font-size: 14px; line-height: 1.55;">
     <strong>🧭 Navigation</strong><br><br>
     <a href="#summary">📌 Summary</a><br>
     <a href="#release-timetable">🚀 Release Timetable</a><br>
@@ -127,7 +127,7 @@ homepage: https://vlar-group.github.io/PhysInOne.html
     <a href="#contact">📮 Contact</a><br>
   </aside>
 
-  <main style="min-width: 0; flex: 1;">
+  <main style="min-width: 0; flex: 1; line-height: 1.45; font-size: 15px;">
 
 <a id="summary"></a>
 
@@ -139,6 +139,31 @@ Each scene may contain multi-object and multi-physics interactions in complex 3D
 
 The dataset is designed to support research on physics-aware video generation, future frame prediction, physical property estimation, motion transfer, physical reasoning, and world models.
 
+
+<div style="display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; margin: 18px 0;">
+
+  <div style="padding: 12px; border: 1px solid #e5e7eb; border-radius: 10px; background: #fafafa;">
+    <strong>153,810</strong><br>
+    <span style="font-size: 13px;">Dynamic 3D scenes</span>
+  </div>
+
+  <div style="padding: 12px; border: 1px solid #e5e7eb; border-radius: 10px; background: #fafafa;">
+    <strong>2M</strong><br>
+    <span style="font-size: 13px;">Annotated videos</span>
+  </div>
+
+  <div style="padding: 12px; border: 1px solid #e5e7eb; border-radius: 10px; background: #fafafa;">
+    <strong>71</strong><br>
+    <span style="font-size: 13px;">Physical phenomena</span>
+  </div>
+
+  <div style="padding: 12px; border: 1px solid #e5e7eb; border-radius: 10px; background: #fafafa;">
+    <strong>4</strong><br>
+    <span style="font-size: 13px;">Physics domains</span>
+  </div>
+
+</div>
+
 <a id="release-timetable"></a>
 
 ## 🚀 Release Timetable
@@ -217,7 +242,7 @@ pip install huggingface_hub tqdm
 
 ## 3. Filter Cases
 
-### Filter by split
+### 3.1 Filter by split
 
 ```bash
 python scripts/filter_cases.py \
@@ -225,7 +250,7 @@ python scripts/filter_cases.py \
   --output selected_cases.json
 ```
 
-### Filter by split and activity complexity
+### 3.2 Filter by split and activity complexity
 
 ```bash
 python scripts/filter_cases.py \
@@ -234,7 +259,7 @@ python scripts/filter_cases.py \
   --output selected_cases.json
 ```
 
-### Filter by physical phenomenon abbreviation
+### 3.3 Filter by physical phenomenon abbreviation
 
 By default, phenomenon matching uses `contains` mode. For example, the following command selects all double-physics cases that contain `FrictionStop`:
 
@@ -258,7 +283,7 @@ python scripts/filter_cases.py \
   --output selected_cases.json
 ```
 
-### Randomly sample a fixed number of cases
+### 3.4 Randomly sample a fixed number of cases
 
 `--num` is the global number of cases sampled after filtering. The default random seed is `42`.