diff --git a/web/static/css/style.css b/web/static/css/style.css
index 281fe324..ad9ef9bb 100644
--- a/web/static/css/style.css
+++ b/web/static/css/style.css
@@ -5000,6 +5000,7 @@ header {
     width: 100%;
     border-collapse: collapse;
     font-size: 0.8125rem;
+    table-layout: fixed;
 }
 
 .tool-schema-table th {
@@ -5019,6 +5020,39 @@ header {
     vertical-align: top;
 }
 
+/* 参数名、类型、必填列：固定宽度且不换行 */
+.tool-schema-table th:nth-child(1),
+.tool-schema-table td:nth-child(1) {
+    width: 18%;
+    min-width: 72px;
+    white-space: nowrap;
+}
+
+.tool-schema-table th:nth-child(2),
+.tool-schema-table td:nth-child(2) {
+    width: 12%;
+    min-width: 56px;
+    white-space: nowrap;
+}
+
+.tool-schema-table th:nth-child(3),
+.tool-schema-table td:nth-child(3) {
+    width: 52px;
+    min-width: 52px;
+    max-width: 52px;
+    white-space: nowrap;
+    text-align: center;
+}
+
+/* 说明列允许换行 */
+.tool-schema-table th:nth-child(4),
+.tool-schema-table td:nth-child(4) {
+    width: auto;
+    white-space: normal;
+    word-wrap: break-word;
+    overflow-wrap: break-word;
+}
+
 .tool-schema-table code {
     font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
     font-size: 0.8125rem;
@@ -5868,13 +5902,30 @@ header {
         grid-template-columns: 1fr;
     }
 
+    .mcp-stats-dist-body--stacked {
+        grid-template-columns: 1fr;
+        grid-template-rows: auto minmax(0, 1fr);
+    }
+
+    .mcp-stats-dist-chart-stage {
+        width: 100%;
+        min-width: 0;
+    }
+
     .mcp-stats-dist-chart-wrap {
-        width: min(72vw, 200px);
-        height: min(72vw, 200px);
+        width: min(228px, 100%);
+        height: auto;
+        aspect-ratio: 1;
     }
 
     .mcp-stats-dist-legend--grid {
-        grid-template-columns: 1fr;
+        justify-content: flex-start;
+        gap: 5px;
+    }
+
+    .mcp-stats-dist-legend-item-wrap,
+    .mcp-stats-dist-legend--grid > .mcp-stats-dist-legend-item {
+        flex: 0 0 auto;
     }
 
     .mcp-stats-tool-list {
@@ -5903,31 +5954,55 @@ header {
     padding: 14px 16px;
 }
 
-.mcp-stats-dist-body--stacked {
+/* 调用分布：左圆图 + 右图例，与左侧 Top6 同高；固定正方形尺寸，避免 cqh 失效导致饼图消失 */
+.mcp-stats-split-right {
+    align-items: stretch;
+}
+
+.mcp-stats-dist-panel.mcp-stats-tools-panel {
+    gap: 8px;
+    padding: 12px 14px;
     flex: 1;
-    display: flex;
-    flex-direction: column;
+    min-height: 100%;
+    width: 100%;
+}
+
+.mcp-stats-dist-panel .mcp-stats-tools-header {
+    flex-shrink: 0;
+    gap: 8px;
+}
+
+.mcp-stats-dist-panel .mcp-stats-tools-legend {
+    display: -webkit-box;
+    -webkit-line-clamp: 2;
+    -webkit-box-orient: vertical;
+    overflow: hidden;
+}
+
+.mcp-stats-dist-body--stacked {
+    flex: 1 1 auto;
+    display: grid;
+    grid-template-columns: minmax(168px, 40%) minmax(0, 1fr);
     gap: 10px;
+    align-items: stretch;
     min-height: 0;
+    width: 100%;
 }
 
 .mcp-stats-dist-chart-stage {
-    flex: 1;
     display: flex;
-    flex-direction: column;
     align-items: center;
     justify-content: center;
-    min-height: 140px;
-    padding: 2px 0;
+    min-width: 0;
+    min-height: 0;
 }
 
 .mcp-stats-dist-chart-wrap {
     position: relative;
-    width: min(100%, 220px);
-    height: min(100%, 220px);
-    max-width: 220px;
-    max-height: 220px;
+    width: 100%;
+    max-width: 212px;
     aspect-ratio: 1;
+    height: auto;
     flex-shrink: 0;
 }
 
@@ -6025,26 +6100,41 @@ header {
     list-style: none;
     margin: 0;
     padding: 0;
-    display: grid;
-    grid-template-columns: 1fr 1fr;
-    gap: 6px;
-    flex-shrink: 0;
+    display: flex;
+    flex-direction: column;
+    gap: 4px;
+    min-width: 0;
+    min-height: 0;
+    height: 100%;
+    justify-content: space-between;
 }
 
 .mcp-stats-dist-legend-item-wrap {
     list-style: none;
     margin: 0;
     padding: 0;
+    width: 100%;
+    flex: 1 1 0;
+    min-height: 0;
+    display: flex;
+}
+
+.mcp-stats-dist-legend--grid > .mcp-stats-dist-legend-item {
+    flex: 1 1 0;
+    min-height: 0;
 }
 
 .mcp-stats-dist-legend-item {
     display: grid;
-    grid-template-columns: 6px minmax(0, 1fr);
-    grid-template-rows: auto auto;
-    gap: 2px 8px;
+    grid-template-columns: 4px minmax(0, 1fr) auto;
+    grid-template-rows: auto;
+    gap: 0 6px;
     align-items: center;
+    align-content: center;
     width: 100%;
-    padding: 7px 8px;
+    height: 100%;
+    min-height: 28px;
+    padding: 4px 6px;
     border-radius: 8px;
     background: var(--bg-primary);
     border: 1px solid var(--border-color);
@@ -6088,15 +6178,18 @@ header {
 }
 
 .mcp-stats-dist-swatch {
-    grid-row: 1 / 3;
+    grid-row: 1;
+    grid-column: 1;
     align-self: stretch;
-    width: 6px;
-    border-radius: 3px;
+    width: 4px;
+    min-height: 22px;
+    border-radius: 2px;
     background: var(--swatch-color, #94a3b8);
 }
 
 .mcp-stats-dist-legend-name {
     grid-column: 2;
+    grid-row: 1;
     overflow: hidden;
     text-overflow: ellipsis;
     white-space: nowrap;
@@ -6104,16 +6197,20 @@ header {
     font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
     font-size: 0.625rem;
     font-weight: 600;
-    line-height: 1.2;
+    line-height: 1.25;
+    min-width: 0;
 }
 
 .mcp-stats-dist-legend-meta {
-    grid-column: 2;
+    grid-column: 3;
+    grid-row: 1;
     display: flex;
     align-items: center;
-    gap: 6px;
+    gap: 5px;
     font-size: 0.625rem;
     font-variant-numeric: tabular-nums;
+    white-space: nowrap;
+    flex-shrink: 0;
 }
 
 .mcp-stats-dist-legend-meta em {