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app/components/QrCodeSection.vue

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+<template>
+  <div class="config-section mt60">
+    <h3 class="config-section-title">
+      <label>登录二维码 </label>
+      <span class="btn-qr-code" v-if="!isPlatformLoggedIn" @click="handleGetQrCode"> 获取二维码 </span>
+    </h3>
+    <div class="qr-code-display">
+      <div v-if="!qrCodeUrl" class="qr-code-placeholder">
+        <p>点击下方"获取二维码"按钮获取二维码</p>
+      </div>
+      <div v-else style="text-align: center;">
+        <img :src="qrCodeUrl" alt="登录二维码"
+          style="max-width: 100%; max-height: 200px; border-radius: 5px; box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);">
+        <div class="qr-code-info" style="margin-top: 10px; font-size: 11px; color: #666;">
+          <p>请使用微信扫描二维码登录</p>
+          <p v-if="qrCodeCountdownActive && qrCodeCountdown > 0"
+            style="margin-top: 8px; font-size: 12px; color: #667eea; font-weight: bold;">
+            {{ qrCodeCountdown }}秒后自动刷新
+          </p>
+          <p v-if="qrCodeExpired"
+            style="margin-top: 8px; font-size: 12px; color: #ff4757; font-weight: bold;">
+            请重新刷新二维码，这个二维码就不能用了
+          </p>
+        </div>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script>
+import qrCodeMixin from '../mixins/qrCodeMixin';
+import { mapState } from 'vuex';
+import platformMixin from '../mixins/platformMixin';
+import logMixin from '../mixins/logMixin.js';
+
+export default {
+  name: 'QrCodeSection',
+  mixins: [qrCodeMixin, platformMixin, logMixin],
+  computed: {
+    ...mapState('qrCode', ['qrCodeUrl', 'qrCodeCountdownActive', 'qrCodeCountdown', 'qrCodeExpired'])
+  },
+  methods: {
+    async handleGetQrCode() {
+      const success = await this.getQrCode();
+      if (success) {
+        // 获取成功后启动自动刷新
+        this.startQrCodeAutoRefresh();
+      }
+    }
+  },
+  mounted() {
+    // 如果已有二维码，启动自动刷新
+    if (this.qrCodeUrl && !this.isPlatformLoggedIn) {
+      this.startQrCodeAutoRefresh();
+    }
+  },
+  beforeUnmount() {
+    // 组件销毁时清理
+    this.stopQrCodeAutoRefresh();
+  }
+};
+</script>
+
+<style lang="less" scoped>
+// 样式已经在全局 CSS 中定义
+</style>
+