feat(login): add email autocomplete suggestions to login form

- Add email suggestions dropdown component with styling for autocomplete functionality
- Implement email input handler to detect user input and generate domain suggestions
- Add focus/blur event handlers to show/hide suggestions dropdown with 200ms delay
- Create suggestion item selection handler to populate email field with selected suggestion
- Add email domains configuration array for extensible domain support
- Style suggestions dropdown with shadow, border, hover effects, and scrollable container
- Hide suggestions when user includes @ symbol in input to avoid duplicate domains

assets/css/mine/login.scss

@@ -121,6 +121,40 @@ page {
             }
         }
 
+        // 邮箱建议下拉列表样式
+        .email-suggestions {
+            position: absolute;
+            top: 100%;
+            left: 0;
+            right: 0;
+            background: #ffffff;
+            border-radius: 12rpx;
+            box-shadow: 0 8rpx 32rpx rgba(0, 0, 0, 0.12);
+            border: 2rpx solid #e2e8f0;
+            z-index: 1000;
+            max-height: 300rpx;
+            overflow-y: auto;
+
+            .suggestion-item {
+                padding: 20rpx 24rpx;
+                font-size: 30rpx;
+                color: #1e293b;
+                border-bottom: 1rpx solid #f1f5f9;
+                cursor: pointer;
+                transition: all 0.2s ease;
+
+                &:last-child {
+                    border-bottom: none;
+                }
+
+                &:hover,
+                &:active {
+                    background: #f8fafc;
+                    color: #3b82f6;
+                }
+            }
+        }
+
         .btn {
             width: 100%;
             height: 96rpx;

pages/mine/login.vue

@@ -3,9 +3,32 @@
         <text class="logo"></text>
         <text class="title">供应链审批系统</text>
         <view class="form-box column rowCenter verCenter">
-            <view class="input-box row verCenter">
+            <view class="input-box row verCenter" style="position: relative;">
                 <text class="iconfont icon-riqi"></text>
-                <input type="text" class="uni-input" placeholder="请输入登录账号" v-model="name" placeholder-style="color: #6E767A;" />
+                <input 
+                    type="text" 
+                    class="uni-input" 
+                    placeholder="请输入登录账号" 
+                    v-model="name" 
+                    placeholder-style="color: #6E767A;" 
+                    @input="onEmailInput"
+                    @focus="onEmailFocus"
+                    @blur="onEmailBlur"
+                />
+                <!-- 邮箱自动补全下拉列表 -->
+                <view 
+                    v-if="showEmailSuggestions && emailSuggestions.length > 0" 
+                    class="email-suggestions"
+                >
+                    <view 
+                        v-for="(suggestion, index) in emailSuggestions" 
+                        :key="index"
+                        class="suggestion-item"
+                        @click="selectEmailSuggestion(suggestion)"
+                    >
+                        {{ suggestion }}
+                    </view>
+                </view>
             </view>
             <view class="input-box row verCenter">
                 <text class="iconfont icon-a-riqi1"></text>
@@ -32,7 +55,10 @@
                 passwd: '',
                 showPassword: false,
                 isLoading: false,
-                currentYear: new Date().getFullYear() // 动态获取当前年份
+                currentYear: new Date().getFullYear(), // 动态获取当前年份
+                showEmailSuggestions: false,
+                emailSuggestions: [],
+                emailDomains: ['@ichunt.com'] // 可以添加更多域名
             };
         },
         onLoad() {
@@ -52,6 +78,62 @@
         onShow() { },
         methods: {
             /**
+             * 邮箱输入处理
+             * @param {Object} e - 输入事件对象
+             * @return {void}
+             */
+            onEmailInput(e) {
+                var value = e.detail.value;
+                this.name = value;
+                
+                // 检查是否包含@符号
+                if (value.includes('@')) {
+                    this.showEmailSuggestions = false;
+                    return;
+                }
+                
+                // 如果输入了内容且不包含@，显示建议
+                if (value.trim()) {
+                    this.emailSuggestions = this.emailDomains.map(domain => value + domain);
+                    this.showEmailSuggestions = true;
+                } else {
+                    this.showEmailSuggestions = false;
+                }
+            },
+
+            /**
+             * 邮箱输入框获得焦点
+             * @return {void}
+             */
+            onEmailFocus() {
+                // 如果有输入内容且不包含@，显示建议
+                if (this.name.trim() && !this.name.includes('@')) {
+                    this.emailSuggestions = this.emailDomains.map(domain => this.name + domain);
+                    this.showEmailSuggestions = true;
+                }
+            },
+
+            /**
+             * 邮箱输入框失去焦点（延迟隐藏以允许点击选择）
+             * @return {void}
+             */
+            onEmailBlur() {
+                setTimeout(() => {
+                    this.showEmailSuggestions = false;
+                }, 200);
+            },
+
+            /**
+             * 选择邮箱建议
+             * @param {string} suggestion - 选中的邮箱建议
+             * @return {void}
+             */
+            selectEmailSuggestion(suggestion) {
+                this.name = suggestion;
+                this.showEmailSuggestions = false;
+            },
+
+            /**
              * 切换密码显示/隐藏
              * @return {void}
              */