feat(page): add homepage carousel for top 3 popular articles

src/components/Carousel.vue

@@ -0,0 +1,236 @@
+<script setup lang="ts">
+import { ref, computed, onMounted, onUnmounted, watch } from 'vue'
+import type { ArticleListItem } from '@/generated/api'
+
+const props = defineProps<{
+  articles: ArticleListItem[]
+}>()
+
+const activeIndex = ref(0)
+const timer = ref<ReturnType<typeof setInterval> | null>(null)
+
+const trackTransform = computed(() => ({
+  transform: `translateX(-${activeIndex.value * 100}%)`
+}))
+
+function coverUrl(article: ArticleListItem): string | undefined {
+  const url = article.coverImage
+  if (!url) return undefined
+  if (url.startsWith('http://') || url.startsWith('https://')) return url
+  return url.startsWith('/') ? url : `/${url}`
+}
+
+function goTo(index: number) {
+  activeIndex.value = index
+  startTimer()
+}
+
+function startTimer() {
+  stopTimer()
+  timer.value = setInterval(() => {
+    activeIndex.value = (activeIndex.value + 1) % Math.max(props.articles.length, 1)
+  }, 3000)
+}
+
+function stopTimer() {
+  if (timer.value) {
+    clearInterval(timer.value)
+    timer.value = null
+  }
+}
+
+onMounted(startTimer)
+onUnmounted(stopTimer)
+
+watch(
+  () => props.articles.length,
+  () => {
+    activeIndex.value = 0
+    startTimer()
+  }
+)
+</script>
+
+<template>
+  <div class="carousel">
+    <div class="carousel-track" :style="trackTransform">
+      <div v-for="article in articles" :key="article.id" class="carousel-slide">
+        <router-link :to="`/post/${article.slug}`" class="slide-link">
+          <img
+            v-if="coverUrl(article)"
+            :src="coverUrl(article)"
+            class="slide-image"
+            :alt="article.title"
+          />
+          <div v-else class="slide-fallback">
+            <p class="slide-fallback-text">{{ article.summary || article.title }}</p>
+          </div>
+          <div class="slide-caption">
+            <h2 class="slide-title">{{ article.title }}</h2>
+            <p v-if="article.summary && coverUrl(article)" class="slide-summary">{{ article.summary }}</p>
+          </div>
+        </router-link>
+      </div>
+    </div>
+    <div v-if="articles.length > 1" class="carousel-indicators">
+      <button
+        v-for="(_, index) in articles"
+        :key="index"
+        class="indicator-dot"
+        :class="{ active: index === activeIndex }"
+        type="button"
+        @click="goTo(index)"
+        :aria-label="`第 ${index + 1} 张`"
+      />
+    </div>
+  </div>
+</template>
+
+<style scoped>
+.carousel {
+  width: 100%;
+  height: 50vh;
+  min-height: 280px;
+  max-height: 480px;
+  overflow: hidden;
+  border-radius: var(--song-radius-l);
+  background: var(--song-surface-3);
+  position: relative;
+}
+
+.carousel-track {
+  display: flex;
+  height: 100%;
+  transition: transform 600ms cubic-bezier(0.45, 0, 0.15, 1);
+  will-change: transform;
+}
+
+.carousel-slide {
+  position: relative;
+  flex: 0 0 100%;
+  min-width: 0;
+  height: 100%;
+}
+
+.slide-link {
+  display: block;
+  width: 100%;
+  height: 100%;
+  text-decoration: none;
+  color: inherit;
+  overflow: hidden;
+}
+
+.slide-image {
+  width: 100%;
+  height: 100%;
+  object-fit: cover;
+}
+
+.slide-fallback {
+  width: 100%;
+  height: 100%;
+  background: var(--song-bg-elevated);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  padding: 48px 64px;
+}
+
+.slide-fallback-text {
+  font-family: var(--song-font-serif);
+  font-weight: bold;
+  font-size: 24px;
+  line-height: 2;
+  color: var(--song-text-secondary);
+  text-align: center;
+  overflow: hidden;
+  display: -webkit-box;
+  -webkit-line-clamp: 5;
+  -webkit-box-orient: vertical;
+  max-height: 5em;
+}
+
+.slide-caption {
+  position: absolute;
+  bottom: 0;
+  left: 0;
+  right: 0;
+  padding: 20px 24px;
+  background: linear-gradient(to top, rgba(0, 0, 0, 0.7) 0%, transparent 100%);
+  color: #fff;
+}
+
+.slide-title {
+  margin: 0 0 6px;
+  font-family: var(--song-font-display);
+  font-size: 20px;
+  font-weight: 600;
+  line-height: 1.4;
+  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
+}
+
+.slide-summary {
+  margin: 0;
+  font-size: 13px;
+  line-height: 1.5;
+  opacity: 0.85;
+  overflow: hidden;
+  display: -webkit-box;
+  -webkit-line-clamp: 2;
+  -webkit-box-orient: vertical;
+}
+
+.carousel-indicators {
+  position: absolute;
+  bottom: 12px;
+  right: 24px;
+  display: flex;
+  gap: 8px;
+  z-index: 1;
+}
+
+.indicator-dot {
+  width: 8px;
+  height: 8px;
+  border-radius: 50%;
+  border: 1px solid rgba(255, 255, 255, 0.7);
+  background: rgba(255, 255, 255, 0.3);
+  cursor: pointer;
+  padding: 0;
+  transition: background var(--song-dur-1) var(--song-ease),
+              border-color var(--song-dur-1) var(--song-ease);
+}
+
+.indicator-dot.active {
+  background: #fff;
+  border-color: #fff;
+}
+
+.indicator-dot:hover {
+  background: rgba(255, 255, 255, 0.8);
+}
+
+@media (max-width: 640px) {
+  .carousel {
+    height: 30vh;
+    min-height: 180px;
+  }
+
+  .slide-fallback {
+    padding: 24px 32px;
+  }
+
+  .slide-fallback-text {
+    font-size: 18px;
+  }
+
+  .slide-title {
+    font-size: 16px;
+  }
+
+  .slide-caption {
+    padding: 12px 16px;
+  }
+}
+</style>

src/views/HomeView.vue

@@ -6,6 +6,7 @@ import { ArticleStatus, type ArticleListItem } from '@/generated/api'
 import ArticleCard from '@/components/ArticleCard.vue'
 import Pagination from '@/components/Pagination.vue'
 import TagCloud from '@/components/TagCloud.vue'
+import Carousel from '@/components/Carousel.vue'
 
 const route = useRoute()
 
@@ -16,6 +17,8 @@ const totalPages = ref(0)
 const loading = ref(false)
 const error = ref<string | null>(null)
 
+const popularArticles = ref<ArticleListItem[]>([])
+
 async function load() {
   loading.value = true
   error.value = null
@@ -33,12 +36,25 @@ async function load() {
   }
 }
 
+async function loadPopular() {
+  try {
+    const resp = await articleApi.apiArticlesPopularGet(3)
+    const data = resp.data.data
+    popularArticles.value = (data as ArticleListItem[]) ?? []
+  } catch (e) {
+    console.error(e)
+  }
+}
+
 function onPageChange(p: number) {
   page.value = p
   load()
 }
 
-onMounted(load)
+onMounted(() => {
+  load()
+  loadPopular()
+})
 
 watch(
   () => route.query.tag,
@@ -50,6 +66,8 @@ watch(
 </script>
 
 <template>
+  <div>
+    <Carousel v-if="popularArticles.length > 0" :articles="popularArticles" />
     <div class="home-layout">
       <div class="home-main">
         <h1 class="page-title">{{ route.query.tag ? '筛选结果' : '最新文章' }}</h1>
@@ -65,6 +83,7 @@ watch(
         <TagCloud />
       </aside>
     </div>
+  </div>
 </template>
 
 <style scoped>
@@ -72,6 +91,7 @@ watch(
   display: flex;
   gap: 24px;
   align-items: flex-start;
+  margin-top: 24px;
 }
 
 .home-main {