<template>
  <div class="Home">
    <!-- 轮播组件 -->
    <el-carousel
      data-aria-viewport-area
      tabindex="0"
      aria-label
      aria-description="You've reached the slider section. This section has four image URLs. To browse the content, please use the tab key."
    >
      <!-- 新增的轮播图模块 -->
      <el-carousel-item key="11">
        <router-link
          to="/Layout/ExhibitionsInfo?id=64&k=2"
          replace
          tabindex="0"
          aria-label="Image link"
          aria-description="The Greeks Agamemnon to Alexander the Great"
        >
          <img
            :src="require(`@/assets/images/swiper11.jpg`)"
            alt="The Greeks Agamemnon to Alexander the Great"
          />
        </router-link>
      </el-carousel-item>

      <el-carousel-item key="10">
        <router-link
          to="/Layout/ExhibitionsInfo?id=63&k=2"
          replace
          tabindex="0"
          aria-label="Image link"
          aria-description="Four Seasons Album: Peking Folk Customs"
        >
          <img
            :src="require(`@/assets/images/swiper10.jpg`)"
            alt="Four Seasons Album: Peking Folk Customs"
          />
        </router-link>
      </el-carousel-item>

      <el-carousel-item key="7">
        <router-link
          to="/Layout/ExhibitionsInfo?id=11&k=2"
          replace
          tabindex="0"
          aria-label="Image link"
          aria-description="Eternal Witness of Civilization: History of Beijing"
        >
          <img
            :src="require(`@/assets/images/swiper7.jpg`)"
            alt="Eternal Witness of Civilization: History of Beijing"
          />
        </router-link>
      </el-carousel-item>

      <el-carousel-item key="6">
        <router-link
          to="/Layout/ExhibitionsInfo?id=58&k=1"
          replace
          tabindex="0"
          aria-label="Image link"
          aria-description="Splendid Central Axis of Beijing."
        >
          <img
            :src="require(`@/assets/images/swiper6.jpg`)"
            alt="Splendid Central Axis of Beijing."
          />
        </router-link>
      </el-carousel-item>
    </el-carousel>
    <!-- 底部 -->
    <div
      class="bottomNav"
      data-aria-viewport-area
      tabindex="0"
      aria-label
      aria-description="You've reached the pop-up window section; this section contains four URLs; please use the tab key to go through the content."
    >
      <div
        class="t1"
        @click="$router.push('/Layout/Visit/2')"
        tabindex="0"
        aria-label="Link"
        aria-description="Reservation"
      >
        <div class="title">
          <span class="aria-theme-independent"> Reservation </span>
        </div>
        <div class="info">
          <router-link
            class="p"
            to="/Layout/Visit/2"
            replace
            tabindex="0"
            aria-label="Image link"
            aria-description="Reservation"
          >
            <img src="../../assets/images/bott1.jpg" alt="Reservation" />
          </router-link>
          <div class="d">
            <p class="n1 aria-theme-independent" tabindex="0">
              Online Reservation
            </p>
            <p class="n2 aria-theme-independent" tabindex="0">
              Telephone Reservation
            </p>
            <p class="n3" tabindex="0">
              Individual <span>+86 (10) 63393339</span>
            </p>
            <p class="n3" tabindex="0">Group <span>+86 (10) 63370458</span></p>
          </div>
        </div>
      </div>
      <div
        class="t2"
        @click="$router.push('/Layout/Visit/1')"
        tabindex="0"
        aria-label="Link"
        aria-description="Visit Info"
      >
        <div class="title">
          <span class="aria-theme-independent">Visit Info</span>
        </div>
        <div class="info">
          <router-link
            class="p"
            to="/Layout/Visit/1"
            replace
            tabindex="0"
            aria-label="Image link"
            aria-description="Hours, Direction & Admission"
          >
            <img
              src="../../assets/images/bott2.jpg"
              alt="Hours, Direction & Admission"
            />
          </router-link>
          <div class="d">
            <p class="n4 aria-theme-independent" tabindex="0">
              Opening Hours 09:00-17:00
            </p>
            <p class="n5" tabindex="0">No admission after 16:00</p>
            <p class="n5" tabindex="0">Closed on Monday</p>
            <p class="n6 aria-theme-independent" tabindex="0">Phone</p>
            <p tabindex="0">+86 (10) 63370491</p>
          </div>
        </div>
      </div>
      <div
        class="t3"
        @click="botskip()"
        tabindex="0"
        aria-label="Link"
        aria-description="Partners & Connections"
      >
        <div class="title">
          <span class="aria-theme-independent">Partners & Connections</span>
        </div>
        <div class="info">
          <router-link
            class="p"
            to="/Layout/About"
            replace
            tabindex="0"
            aria-label="Image link"
            aria-description="Partners & Connections"
          >
            <img
              src="../../assets/images/bott3.jpg"
              alt="Partners & Connections"
            />
          </router-link>
          <div class="d">
            <p class="n7 aria-theme-independent" tabindex="0">
              Partners & Connections
            </p>
          </div>
        </div>
      </div>
      <div
        class="t4"
        @click="$router.push('/Layout/Events')"
        tabindex="0"
        aria-label="Link"
        aria-description="Events"
      >
        <div class="title">
          <span class="aria-theme-independent">Events</span>
        </div>
        <div class="info">
          <router-link
            class="p"
            to="/Layout/Events"
            replace
            tabindex="0"
            aria-label="Image link"
            aria-description="Events"
          >
            <img src="../../assets/images/bott4.jpg" alt="Events" />
          </router-link>
          <div class="d">
            <p class="n8 aria-theme-independent" tabindex="0">Events</p>
          </div>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
export default {
  name: "Home",
  components: {},
  data() {
    //这里存放数据
    return {};
  },
  //监听属性 类似于data概念
  computed: {},
  //监控data中的数据变化
  watch: {},
  //方法集合
  methods: {
    // 底部的跳转
    botskip() {
      this.$router.push("/Layout/About").catch(() => {});
      setTimeout(() => {
        window.scrollTo({ top: 1307, behavior: "smooth" });
      }, 100);
    },
  },
  //生命周期 - 创建完成（可以访问当前this实例）
  created() {},
  //生命周期 - 挂载完成（可以访问DOM元素）
  mounted() {
    this.$eventBus.$emit(
      "request-read",
      `You've reached the Home Page, which features one navigation section, four window sections, and one interactive section. To choose a section, please hit the shortcut key.`
    );
  },
  beforeCreate() {}, //生命周期 - 创建之前
  beforeMount() {}, //生命周期 - 挂载之前
  beforeUpdate() {}, //生命周期 - 更新之前
  updated() {}, //生命周期 - 更新之后
  beforeDestroy() {}, //生命周期 - 销毁之前
  destroyed() {}, //生命周期 - 销毁完成
  activated() {}, //如果页面有keep-alive缓存功能，这个函数会触发
};
</script>
<style lang="less" scoped>
.Home {
  position: relative;
  width: 100%;
  height: calc(100vh - 45px);
  background-color: black;

  img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    cursor: pointer;
  }
  .bottomNav {
    padding: 0 100px;
    background-color: rgba(0, 0, 0, 0.8);
    width: 100%;
    height: 55px;
    position: absolute;
    left: 0;
    bottom: 0;
    z-index: 4;
    display: flex;
    & > div {
      display: block;
      cursor: pointer;
      width: 25%;
      height: 58px;
      position: relative;
      transform: translateY(-3px);
      .title {
        font-size: 14px;
        color: #fff;
        line-height: 55px;
        text-align: center;
        width: 100%;
        span {
          padding-left: 30px;
        }
      }
      .info {
        transition: all 0.3s;
        height: 0;
        overflow: hidden;
        width: 100%;
        position: absolute;
        left: 0;
        bottom: 0;
        z-index: 99;
        .d {
          font-size: 14px;
          color: #ccc;
          background: #000;
          padding: 20px;
        }
        .p {
          display: block;
          img {
            vertical-align: bottom;
          }
        }
      }
    }
    .t1:hover .info {
      height: 320px;
    }
    .t2:hover .info {
      height: 320px;
    }
    .t3:hover .info {
      height: 270px;
    }
    .t4:hover .info {
      height: 270px;
    }
    .t1:focus-within .info {
      height: 320px;
    }
    .t2:focus-within .info {
      height: 320px;
    }
    .t3:focus-within .info {
      height: 270px;
    }
    .t4:focus-within .info {
      height: 270px;
    }
    .t1 {
      .title {
        span {
          background: url("../../assets/images/bottom_ico1.png") no-repeat left
            center;
        }
      }
      .p {
        border-bottom: 3px solid #1116e5;
      }
      border-top: 3px solid #1116e5;
    }
    .t2 {
      .title {
        span {
          background: url("../../assets/images/bottom_ico2.png") no-repeat left
            center;
        }
      }
      .p {
        border-bottom: 3px solid #a211e5;
      }
      border-top: 3px solid #a211e5;
    }
    .t3 {
      .title {
        span {
          background: url("../../assets/images/bottom_ico3.png") no-repeat left
            center;
        }
      }
      .p {
        border-bottom: 3px solid #229382;
      }
      .d {
        padding-top: 40px !important;
        padding-bottom: 40px !important;
      }
      border-top: 3px solid #229382;
    }
    .t4 {
      .title {
        span {
          background: url("../../assets/images/bottom_ico4.png") no-repeat left
            center;
        }
      }
      .p {
        border-bottom: 3px solid #7a9322;
      }
      .d {
        padding-top: 40px !important;
        padding-bottom: 40px !important;
      }

      border-top: 3px solid #7a9322;
    }
    p {
      margin-bottom: 5px;
    }
    .n1 {
      line-height: 30px;
      background: url(../../assets/images/bottom_sub_ico1.png) no-repeat left
        center;
      text-indent: 25px;
      & > a {
        color: #ff0000;
        text-decoration: underline;
        margin-left: 20px;
      }
    }
    .n2 {
      line-height: 30px;
      background: url(../../assets/images/bottom_sub_ico2.png) no-repeat left
        center;
      text-indent: 25px;
      margin-bottom: 10px;
    }
    .n3 {
      width: 200px;
      margin-bottom: 5px;
      & > span {
        float: right;
      }
    }
    .n4 {
      line-height: 30px;
      background: url(../../assets/images/bottom_sub_ico3.png) no-repeat left
        center;
      text-indent: 25px;
    }
    .n5 {
      font-size: 12px;
      color: #828282;
      margin-bottom: 0;
    }
    .n6 {
      line-height: 30px;
      background: url(../../assets/images/bottom_sub_ico2.png) no-repeat left
        center;
      text-indent: 25px;
    }
    .n7 {
      font-size: 18px;
      background: url(../../assets/images/bottom_ico3.png) no-repeat left center;
      padding-left: 30px;
    }
    .n8 {
      font-size: 18px;
      background: url(../../assets/images/bottom_ico4.png) no-repeat left center;
      padding-left: 30px;
    }
  }
}
</style>
