refactor(component): 重构组件模板与样式结构

将公共样式提取至public.css，优化组件模板结构
添加图片资源与组件模板同步脚本
调整组件样式与布局，统一风格

component/item-summary/item-summary.js

@@ -0,0 +1,33 @@
+// my-component.js
+// 引入全局 Vue 对象（因在 HTML 中通过 script 引入，Vue 已挂载到 window）
+const { defineComponent } = Vue;
+import { itemBottom } from "../item-bottom/item-bottom.js";
+import { itemHead } from "../item-head/item-head.js";
+
+// 定义组件（直接使用模板）
+export const itemSummary = defineComponent({
+    name: "item-summary",
+    props: {
+        title: {
+            type: String,
+            default: "默认标题",
+        },
+        item: {
+            type: Object,
+            default: () => {},
+        },
+    },
+    // 方法
+    methods: {
+        handleClick() {
+            alert("组件按钮被点击");
+        },
+    },
+
+    components: {
+        itemBottom,
+        itemHead,
+    },
+
+    template: `<div class="item-box item-summary">    <item-head></item-head>    <div class="title" v-if="item.title">{{ item.title }}</div>    <div class="message one-line-display" v-if="item.content">{{ item.content }}</div>    <div class="total flexacenter">        <div>共</div>        <div class="num">{{ item.data.offercount }}</div>        <div>个Offer</div>    </div>    <div class="list flexacenter" scroll-x>        <div class="item flexflex" v-for="(it,i) in item.data.offerlist" :key="i">            <div class="item-content flexflex">                <div class="school flexacenter">                    <img class="icon" :src="it.schoollogo" mode="heightFix"></image>                    <div class="name one-line-display flex1">{{ it.schoolname }}</div>                </div>                <div class="major one-line-display" v-if="it.professional">{{ it.professional }}</div>                <div class="info flexacenter">                    {{ it.semester || '25Fall' }}                    <div class="line"></div>                    {{ it.degree || 'MSc' }}                    <div class="line"></div>                    <div class="results" :class="['r' + it.apply_results]">{{ it.apply_results_text || 'Offer' }}</div>                </div>            </div>        </div>        <div v-if="item.data.offercount > 3" class="item more flexcenter">            <div class="item-content flexcenter">                <div class="">查看更多</div>                <img class="icon" src="/img/arrows-circle-dark-blue.svg" mode="heightFix"></image>            </div>        </div>    </div>    <item-bottom></item-bottom></div>`,
+});