diff --git a/src/form/number.js b/src/form/number.js
index 37e332b..50bbac6 100644
--- a/src/form/number.js
+++ b/src/form/number.js
@@ -106,39 +106,13 @@ class InputNumber extends Component {
     `,
     // 尺寸
     css`
-      @use 'sass:map';
-      $sizes: (
-        s: (
-          w: 52px,
-          h: 20px,
-          f: 12px
-        ),
-        m: (
-          w: 72px,
-          h: 24px,
-          f: 12px
-        ),
-        xl: (
-          w: 132px,
-          h: 36px,
-          f: 14px
-        ),
-        xxl: (
-          w: 160px,
-          h: 44px,
-          f: 16px
-        )
-      );
+      :host([size='small']) {
+        min-width: 72px;
+        height: 24px;
+        font-size: 12px;
 
-      @loop $s, $v in $sizes {
-        :host([size='#{$s}']) {
-          min-width: map.get($v, 'w');
-          height: map.get($v, 'h');
-          font-size: map.get($v, 'f');
-
-          button {
-            width: map.get($v, 'h') + 2;
-          }
+        button {
+          width: 26px;
         }
       }
 
@@ -160,9 +134,7 @@ class InputNumber extends Component {
         info: 'blue',
         success: 'green',
         warning: 'orange',
-        danger: 'red',
-        secondary: 'dark',
-        help: 'grey'
+        danger: 'red'
       );
 
       @loop $t, $c in $colors {
@@ -225,7 +197,17 @@ class InputNumber extends Component {
   }
 
   #fetch(value) {
+    let now = Date.now()
+    let { lazy } = this
     this.value = value
+
+    // 并发拦截
+    if (lazy && now - this.#stamp < lazy) {
+      return
+    }
+
+    this.#stamp = now
+
     this.$emit('input')
     this.$emit('change')
   }