hfb_sys/frontend/src/features/listings/components/HomeBanner.vue

<script setup lang="ts">
import { computed, ref } from 'vue'

interface HomeBannerSlide {
  title?: string
  eyebrow?: string
  pill?: string
  badge?: string
  tone?: string
  image_url?: string
}

interface StatItem {
  label: string
  value: string
  hint?: string
}

interface Props {
  banners: HomeBannerSlide[]
  stats?: StatItem[]
}

const props = defineProps<Props>()

const previewVisible = ref(false)
const previewIndex = ref(0)

const previewUrls = computed(() =>
  props.banners
    .map(slide => slide.image_url?.trim() || '')
    .filter((url): url is string => Boolean(url))
)

function openPreview(slide: HomeBannerSlide) {
  const url = slide.image_url?.trim()
  if (!url) return
  const index = previewUrls.value.indexOf(url)
  if (index < 0) return
  previewIndex.value = index
  previewVisible.value = true
}

function closePreview() {
  previewVisible.value = false
}

function hasSlideCopy(slide: HomeBannerSlide) {
  return Boolean(slide.eyebrow?.trim() || slide.title?.trim() || slide.pill?.trim())
}
</script>

<template>
  <section class="hero-board">
    <el-carousel height="200px" :interval="3600">
      <el-carousel-item v-for="slide in banners" :key="slide.title || slide.image_url">
        <div
          class="hero-slide"
          :class="[
            `tone-${slide.tone}`,
            {
              'has-image': slide.image_url,
              'has-copy': hasSlideCopy(slide),
              'is-previewable': !!slide.image_url,
            },
          ]"
          @click="openPreview(slide)"
        >
          <img
            v-if="slide.image_url"
            :src="slide.image_url"
            :alt="slide.title || slide.eyebrow || '首页轮播'"
          />
          <div class="hero-copy">
            <span v-if="slide.eyebrow">{{ slide.eyebrow }}</span>
            <h1 v-if="slide.title">{{ slide.title }}</h1>
            <p v-if="slide.pill">{{ slide.pill }}</p>
          </div>
          <em v-if="slide.badge">{{ slide.badge }}</em>
        </div>
      </el-carousel-item>
    </el-carousel>

    <!-- 右下角半透明悬浮统计标签 -->
    <div v-if="stats && stats.length" class="banner-stat-chips">
      <div v-for="st in stats" :key="st.label" class="stat-pill" :title="st.hint">
        <strong class="stat-pill-val">{{ st.value }}</strong>
        <span class="stat-pill-lbl">{{ st.label }}</span>
      </div>
    </div>

    <el-image-viewer
      v-if="previewVisible"
      :url-list="previewUrls"
      :initial-index="previewIndex"
      teleported
      hide-on-click-modal
      @close="closePreview"
    />
  </section>
</template>

<style scoped>
.hero-board {
  position: relative;
  min-width: 0;
  width: 100%;
  border-radius: 14px;
  overflow: hidden;
  background: #ffffff;
}

.hero-board :deep(.el-carousel) {
  min-width: 0;
}

.hero-board :deep(.el-carousel__container) {
  height: 200px;
  overflow: hidden;
}

.hero-board :deep(.el-carousel__item) {
  height: 100%;
}

.hero-slide {
  position: relative;
  height: 100%;
  display: flex;
  align-items: center;
  padding: 24px 36px;
  overflow: hidden;
  color: #17233d;
  background: linear-gradient(135deg, #eff6ff 0%, #ffffff 58%, #fff7ed 100%);
}

.hero-slide.is-previewable {
  cursor: zoom-in;
}

.hero-slide.tone-blue {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 56%, #fff7ed 100%);
}

.hero-slide.tone-orange {
  background: linear-gradient(135deg, #fff7ed 0%, #ffedd5 100%);
}
.hero-slide.tone-green {
  background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
}

.hero-slide img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-slide.has-image.has-copy::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    rgba(15, 23, 42, 0.74) 0%,
    rgba(15, 23, 42, 0.24) 62%,
    transparent 100%
  );
}

.hero-copy {
  position: relative;
  z-index: 1;
  max-width: 480px;
}

.hero-copy span {
  color: #ff6a00;
  font-size: 12px;
  font-weight: 700;
}

.hero-slide.has-image .hero-copy {
  color: #ffffff;
}

.hero-slide.has-image .hero-copy span {
  color: #fed7aa;
}

.hero-copy h1 {
  margin: 6px 0;
  font-size: 22px;
  font-weight: 800;
  line-height: 1.2;
}

.hero-copy p {
  display: inline-block;
  margin: 0;
  padding: 3px 10px;
  border-radius: 999px;
  color: #1e293b;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(4px);
  font-size: 12px;
  font-weight: 700;
}

.hero-slide em {
  position: absolute;
  top: 14px;
  right: 18px;
  z-index: 1;
  padding: 4px 9px;
  border-radius: 999px;
  color: #ffffff;
  background: #ff6a00;
  font-size: 11px;
  font-style: normal;
  font-weight: 700;
}

/* 悬浮微型统计标签栏 */
.banner-stat-chips {
  position: absolute;
  bottom: 12px;
  right: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  z-index: 3;
}

.stat-pill {
  display: inline-flex;
  align-items: baseline;
  gap: 5px;
  padding: 4px 12px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #ffffff;
  font-size: 12px;
}

.stat-pill-val {
  font-size: 14px;
  font-weight: 700;
  color: #fb923c;
}

.stat-pill-lbl {
  font-size: 11px;
  color: #cbd5e1;
}

@media (max-width: 768px) {
  .banner-stat-chips {
    display: none;
  }
}
</style>