diff --git a/src/form/input.js b/src/form/input.js
index 5ad259a..775de26 100644
--- a/src/form/input.js
+++ b/src/form/input.js
@@ -4,364 +4,387 @@
  * @date 2023/03/06 15:17:25
  */
 
-import { $, bind, unbind, nextTick, css, html, Component } from '@bd/core'
+import { nextTick, css, html, Component } from '@bd/core'
 import '../icon/index.js'
 
 class Input extends Component {
   static props = {
-    readonly: false,
+    readOnly: false,
     autofocus: false,
     disabled: false,
+    closeable: false,
     icon: '',
     placeholder: '',
-    maxlength: '',
-    minlength: '',
-    value: '',
+    maxlength: null,
+    minlength: null,
+    value: {
+      type: String,
+      default: '',
+      attribute: false,
+      observer(val) {
+        if (this.$refs) {
+          this.$refs.input.value = val
+        }
+      }
+    },
     lazy: 0 // 并发拦截时间, 单位毫秒
   }
 
-  static styles = css`
-    :host {
-      overflow: hidden;
-      display: inline-flex;
-      min-width: 228px;
-      user-select: none;
-      -moz-user-select: none;
-      color: var(--color-dark-1);
-      border-radius: 3px;
-      cursor: text;
-      transition: box-shadow 0.15s linear;
-    }
-
-    .label {
-      flex: 1;
-      display: flex;
-      justify-content: center;
-      align-items: center;
-      height: 36px;
-      font-size: 14px;
-      border: 1px solid var(--color-grey-2);
-      border-radius: inherit;
-      background: var(--bg-color, #fff);
-      color: inherit;
-      cursor: inherit;
-
-      input {
-        flex: 1;
-        min-width: 36px;
-        width: 0;
-        height: 100%;
-        padding: 0 8px;
-        border: 0;
-        border-radius: inherit;
-        font: inherit;
-        color: inherit;
-        background: none;
-        outline: none;
-        box-shadow: none;
-        cursor: inherit;
-
-        &::placeholder {
-          color: var(--color-grey-1);
-        }
+  static styles = [
+    css`
+      :host {
+        overflow: hidden;
+        display: inline-flex;
+        min-width: 228px;
+        height: 36px;
+        user-select: none;
+        -moz-user-select: none;
+        color: var(--color-dark-1);
+        border-radius: 3px;
+        cursor: text;
+        transition: box-shadow 0.15s linear;
       }
 
-      .prepend,
-      .append {
+      .label {
+        flex: 1;
         display: flex;
         justify-content: center;
         align-items: center;
-        width: auto;
-        height: 34px;
-        padding: 0 10px;
-        line-height: 1;
-        white-space: nowrap;
-      }
-      .prepend {
-        border-right: 1px solid var(--color-grey-a);
-        border-radius: 6px 0 0 6px;
-      }
-      .append {
-        border-left: 1px solid var(--color-grey-a);
-        border-radius: 0 6px 6px 0;
-      }
-      &[prepend] .prepend,
-      &[append] .append {
-        display: flex;
-      }
-      &[prepend] input,
-      &[append] input {
-        min-width: 64px;
-      }
-      /* ----- */
-      .close {
-        display: none;
-        --size: 16px;
-        margin: 0 8px 0 4px;
-        padding: 4px;
-        border-radius: 50%;
-        color: var(--color-grey-2);
-        cursor: pointer;
-        transition: background 0.15s linear;
-
-        &:hover {
-          background: var(--color-plain-1);
-        }
-
-        &.show {
-          display: block;
-        }
-      }
-    }
-
-    .suggestion {
-      overflow: hidden;
-      display: none;
-      position: fixed;
-      z-index: 10240;
-      left: 0;
-      top: 0;
-      width: 200px;
-      height: auto;
-      max-height: 200px;
-      min-height: 46px;
-      padding: 4px 0;
-      border-radius: 4px;
-      background: var(--color-plain-1);
-      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.15);
-
-      .list {
-        width: 100%;
-      }
-      &.show {
-        display: flex;
-      }
-
-      li {
-        overflow: hidden;
-        width: 100%;
-        height: 30px;
-        line-height: 30px;
-        padding: 0 8px;
-        text-overflow: ellipsis;
-        white-space: nowrap;
-        cursor: pointer;
-
-        &:hover,
-        &[focus] {
-          background: var(--color-plain-2);
-        }
-      }
-    }
-
-    /* 额外样式 */
-    :host([round]) {
-      border-radius: 26px;
-
-      .label input {
-        padding: 0 10px;
-        margin: 0 18px;
-      }
-
-      .label[prepend] input,
-      .label[append] input {
-        padding: 0 5px;
-      }
-      .label[prepend] input {
-        margin-left: 0;
-      }
-      .label[append] input {
-        margin-right: 0;
-      }
-
-      .prepend {
-        border-radius: 26px 0 0 26px;
-      }
-      .append {
-        border-radius: 0 26px 26px 0;
-      }
-    }
-
-    :host([size='large']) {
-      min-width: 234px;
-      .label {
-        height: 52px;
-        font-size: 18px;
+        height: 100%;
+        font-size: 14px;
+        border: 1px solid var(--color-grey-2);
+        border-radius: inherit;
+        background: var(--bg-color, #fff);
+        color: inherit;
+        cursor: inherit;
 
         input {
-          padding: 0 16px;
+          flex: 1;
+          min-width: 36px;
+          width: 0;
+          height: 100%;
+          padding: 0 8px;
+          border: 0;
+          border-radius: inherit;
+          font: inherit;
+          color: inherit;
+          background: none;
+          outline: none;
+          box-shadow: none;
+          cursor: inherit;
+
+          &::placeholder {
+            color: var(--color-grey-1);
+          }
         }
-      }
-      .prepend,
-      .append {
-        height: 48px;
-        padding: 0 16px;
-      }
 
-      .icon {
-        --size: 24px;
-        margin: 0 20px 0 4px;
-      }
-    }
-    :host([size='medium']) {
-      min-width: 160px;
-      .label {
-        height: 44px;
-
-        input {
-          padding: 0 10px;
-        }
-      }
-      .prepend,
-      .append {
-        height: 40px;
-      }
-    }
-    :host([size='small']) {
-      min-width: 96px;
-      .label {
-        height: 32px;
-
-        input {
-          padding: 0 6px;
-        }
-      }
-      .prepend,
-      .append {
-        height: 28px;
-      }
-    }
-    :host([size='mini']) {
-      min-width: 72px;
-      .label {
-        height: 26px;
-        font-size: 12px;
-      }
-      .icon {
-        --size: 14px;
-      }
-      .prepend,
-      .append {
-        height: 22px;
-      }
-    }
-
-    /* ----- 类型(颜色) ----- */
-    $colors: (
-      primary: 'teal',
-      info: 'blue',
-      success: 'green',
-      warning: 'orange',
-      danger: 'red',
-      secondary: 'dark',
-      help: 'grey'
-    );
-    :host(:focus-within) {
-      box-shadow: 0 0 0 2px var(--color-plain-a);
-    }
-    @loop $t, $c in $colors {
-      :host([type='#{$t}']:focus-within) {
-        box-shadow: 0 0 0 2px var(--color-#{$c}-a);
-      }
-
-      :host([type='#{$t}']) .label {
-        border-color: var(--color-#{$c}-2);
         .prepend,
         .append {
-          border-color: var(--color-#{$c}-a);
+          display: flex;
+          justify-content: center;
+          align-items: center;
+          width: auto;
+          white-space: nowrap;
         }
-      }
-    }
 
-    /* --- */
-    :host([disabled]) {
-      pointer-events: none;
-      cursor: not-allowed;
-
-      .label {
-        border-color: var(--color-grey-1);
-        background: var(--color-plain-1);
-        opacity: 0.6;
-      }
-    }
-    :host([readonly]) {
-      cursor: default;
-    }
-
-    :host([no-border]),
-    :host(:focus-within[no-border]) {
-      .label {
-        border: 0;
-
-        &[prepend] input {
-          padding-left: 2px;
+        &[prepend] .prepend,
+        &[append] .append {
+          display: flex;
         }
+        &[prepend] input,
         &[append] input {
-          padding-right: 2px;
+          min-width: 64px;
+        }
+        /* ----- */
+        .close {
+          --size: 18px;
+          margin: 0 8px 0 4px;
+          padding: 4px;
+          border-radius: 50%;
+          color: var(--color-grey-2);
+          cursor: pointer;
+          transition: background 0.15s linear;
+
+          &:hover {
+            background: var(--color-plain-1);
+          }
         }
       }
-      .prepend,
-      .append {
-        border: 0;
+
+      .suggestion {
+        overflow: hidden;
+        display: none;
+        position: fixed;
+        z-index: 10240;
+        left: 0;
+        top: 0;
+        width: 200px;
+        height: auto;
+        max-height: 200px;
+        min-height: 46px;
+        padding: 4px 0;
+        border-radius: 4px;
+        background: var(--color-plain-1);
+        box-shadow: 0 2px 5px rgba(0, 0, 0, 0.15);
+
+        .list {
+          width: 100%;
+        }
+        &.show {
+          display: flex;
+        }
+
+        li {
+          overflow: hidden;
+          width: 100%;
+          height: 30px;
+          line-height: 30px;
+          padding: 0 8px;
+          text-overflow: ellipsis;
+          white-space: nowrap;
+          cursor: pointer;
+
+          &:hover,
+          &[focus] {
+            background: var(--color-plain-2);
+          }
+        }
       }
-    }
-  `
+
+      /* 额外样式 */
+      :host([round]) {
+        border-radius: 26px;
+
+        .label input {
+          padding: 0 10px;
+          // margin: 0 18px;
+        }
+
+        .label[prepend] input,
+        .label[append] input {
+          padding: 0 5px;
+        }
+      }
+
+      :host([size='large']) {
+        min-width: 234px;
+        .label {
+          height: 52px;
+          font-size: 18px;
+
+          input {
+            padding: 0 16px;
+          }
+        }
+        .prepend,
+        .append {
+          height: 48px;
+          padding: 0 16px;
+        }
+
+        .icon {
+          --size: 24px;
+          margin: 0 20px 0 4px;
+        }
+      }
+      :host([size='medium']) {
+        min-width: 160px;
+        .label {
+          height: 44px;
+
+          input {
+            padding: 0 10px;
+          }
+        }
+        .prepend,
+        .append {
+          height: 40px;
+        }
+      }
+      :host([size='small']) {
+        min-width: 96px;
+        .label {
+          height: 32px;
+
+          input {
+            padding: 0 6px;
+          }
+        }
+        .prepend,
+        .append {
+          height: 28px;
+        }
+      }
+      :host([size='mini']) {
+        min-width: 72px;
+        .label {
+          height: 26px;
+          font-size: 12px;
+        }
+        .icon {
+          --size: 14px;
+        }
+        .prepend,
+        .append {
+          height: 22px;
+        }
+      }
+
+      :host(:focus-within) {
+        box-shadow: 0 0 0 2px var(--color-plain-a);
+      }
+      /* --- */
+      :host([disabled]) {
+        pointer-events: none;
+        cursor: not-allowed;
+
+        .label {
+          border-color: var(--color-grey-1);
+          background: var(--color-plain-1);
+          opacity: 0.6;
+        }
+      }
+      :host([readonly]) {
+        cursor: default;
+      }
+
+      :host([no-border]),
+      :host(:focus-within[no-border]) {
+        .label {
+          border: 0;
+
+          &[prepend] input {
+            padding-left: 2px;
+          }
+          &[append] input {
+            padding-right: 2px;
+          }
+        }
+        .prepend,
+        .append {
+          border: 0;
+        }
+      }
+    `,
+    //尺寸
+    css`
+      @use 'sass:map';
+      $sizes: (
+        m: (
+          w: 82px,
+          h: 24px,
+          f: 12px
+        ),
+        l: (
+          w: 108px,
+          h: 32px,
+          f: 14px
+        ),
+        xl: (
+          w: 132px,
+          h: 36px,
+          f: 14px
+        ),
+        xxl: (
+          w: 160px,
+          h: 44px,
+          f: 14px
+        ),
+        xxxl: (
+          w: 192px,
+          h: 52px,
+          f: 16px
+        )
+      );
+
+      @loop $s, $v in $sizes {
+        :host([size='#{$s}']) {
+          min-width: map.get($v, 'w');
+          height: map.get($v, 'h');
+          font-size: map.get($v, 'f');
+          .label {
+            height: map.get($v, 'h');
+            font-size: map.get($v, 'f');
+          }
+          .icon {
+            --size: #{map.get($v, 'f')};
+          }
+        }
+        :host([size='#{$s}'][circle]) {
+          width: map.get($v, 'h');
+          height: map.get($v, 'h');
+        }
+      }
+    `,
+
+    /* ----- 类型(颜色) ----- */
+    css`
+      $colors: (
+        primary: 'teal',
+        info: 'blue',
+        success: 'green',
+        warning: 'orange',
+        danger: 'red',
+        secondary: 'dark',
+        help: 'grey'
+      );
+
+      @loop $t, $c in $colors {
+        :host([type='#{$t}']:focus-within) {
+          box-shadow: 0 0 0 2px var(--color-#{$c}-a);
+        }
+
+        :host([type='#{$t}']) .label {
+          border-color: var(--color-#{$c}-2);
+          .prepend,
+          .append {
+            border-color: var(--color-#{$c}-a);
+          }
+        }
+      }
+    `
+  ]
+  renderClose() {
+    return html`<wc-icon
+      class="close"
+      is="close"
+      @click=${this.onClickClose}
+    />`
+  }
 
   render() {
     return html`
       <div class="label">
         <slot class="prepend" name="prepend"></slot>
         <input
+          ref="input"
+          @input=${this.onInput}
           placeholder=${this.placeholder}
           maxlength=${this.maxlength}
           minlength=${this.minlength}
-          value=${this.value}
+          disabled=${this.disabled}
+          readonly=${this.readOnly}
+          autofocus=${this.autofocus}
         />
-        <slot class="append" name="append">
-          <wc-icon style="--size: 16px" is=${this.icon}></wc-icon>
-        </slot>
+        ${this.closeable && this.value ? this.renderClose() : ''}
+        ${this.icon
+          ? html`<wc-icon class="icon" is=${this.icon} />`
+          : html`<slot class="append" name="append" />`}
       </div>
     `
   }
-  #formatSlot() {
-    const label = this.root.children[0]
-    const prepend = label.children.prepend.assignedNodes()
-    const append = label.children.append.assignedNodes()
-
-    if (prepend.length) {
-      while (prepend.length > 1) {
-        this.removeChild(prepend.pop())
-      }
-      label.setAttribute('prepend', '')
-    } else {
-      label.removeChild(label.children.prepend)
-    }
-
-    if (append.length) {
-      while (append.length > 1) {
-        this.removeChild(append.pop())
-      }
-      label.setAttribute('append', '')
-    } else {
-      !this.icon && label.removeChild(label.children.append)
-    }
+  onInput(e) {
+    this.value = e.currentTarget.value
+  }
+  onClickClose() {
+    this.$refs.input.value = ''
+    this.value = ''
   }
-
   mounted() {
-    this.#formatSlot()
-
-    let $input = $('input', this.root)
     if (this.autofocus) {
-      $input.setAttribute('autofocus', '')
-      // 需要focus()才能聚焦成功
-      nextTick(() => $input.focus())
+      // 火狐浏览器需要手动focus()才能聚焦成功
+      nextTick(_ => this.$refs.input.focus())
     }
-
-    bind($input, 'input', e => {
-      e.stopPropagation()
-      this.value = e.target.value
-      this.$emit('input')
-    })
   }
 }