feat(home): 添加首页轮播图功能并优化页面样式

- 集成 a-carousel 组件实现首页英雄区域轮播图效果
- 添加 ClientOnly 包装确保轮播图在客户端渲染
- 配置自动播放和淡入淡出动画效果
- 设置背景图片数组包含两个轮播图片地址
- 调整 CSS 样式实现轮播图绝对定位和层级管理
- 修改页脚背景色从黑色调整为灰色
- 恢复显示网站名称文字并设置绿色字体颜色
- 优化轮播图容器和幻灯片的高度适配样式

app/pages/index.vue

@@ -4,6 +4,23 @@
       <div class="grid grid-cols-12 gap-6">
         <div class="col-span-12">
           <div class="panel hero">
+            <div class="hero-bg" aria-hidden="true">
+              <ClientOnly>
+                <a-carousel class="hero-carousel" autoplay effect="fade" :autoplaySpeed="4500" :dots="false">
+                  <div
+                    v-for="src in heroSlides"
+                    :key="src"
+                    class="hero-slide"
+                    :style="{ backgroundImage: `url(${src})` }"
+                  ></div>
+                </a-carousel>
+                <template #fallback>
+                  <div class="hero-carousel">
+                    <div class="hero-slide" :style="{ backgroundImage: `url(${heroSlides[0]})` }"></div>
+                  </div>
+                </template>
+              </ClientOnly>
+            </div>
             <div class="hero-inner">
 <!--              <div class="hero-badge">OFFICIAL</div>-->
 <!--              <div class="hero-title">{{ COMPANY.projectName }}</div>-->
@@ -140,6 +157,11 @@ usePageSeo({
   path: '/'
 })
 
+const heroSlides = [
+  'https://file-cloud.yst.com.cn/photo/website/2024/11/28/5a5cc07336224e54a84561c80899bcac.jpg',
+  'https://oss.wsdns.cn/20260115/75690dea8f064ceda03246b198a7d710.jpg'
+]
+
 function splitScope(text: string) {
   return text
     .split(/[；;]+/g)
@@ -253,14 +275,37 @@ function scrollToCompany() {
 }
 
 .hero {
+  position: relative;
   min-height: 360px;
-  background: url('https://oss.wsdns.cn/20260115/75690dea8f064ceda03246b198a7d710.jpg');
+}
+
+.hero-bg {
+  position: absolute;
+  inset: 0;
+  z-index: 0;
+}
+
+.hero-carousel {
+  height: 100%;
+}
+
+.hero-slide {
+  height: 100%;
   background-size: cover;
   background-position: center;
   background-repeat: no-repeat;
 }
 
+.hero-carousel :deep(.slick-list),
+.hero-carousel :deep(.slick-track),
+.hero-carousel :deep(.slick-slide),
+.hero-carousel :deep(.slick-slide > div) {
+  height: 100%;
+}
+
 .hero-inner {
+  position: relative;
+  z-index: 1;
   height: 100%;
   padding: 28px;
   display: flex;