<template>
  <div>
    <el-row>
      <el-col class="sub-system control-system">
        <div class="icon-subsystem">
          <img src="/static/images/dashboard/icon-control.png">
          <div><a>综合控制室</a></div>
        </div>
      </el-col>
      <el-col class="sub-system door-system">
        <div class="icon-subsystem">
          <img src="/static/images/dashboard/icon-door.png">
          <div><a @click="doorSubSystem">营门管理</a></div>
        </div>
      </el-col>
      <el-col class="sub-system defence-system">
        <div class="icon-subsystem">
          <img src="/static/images/dashboard/icon-defence.png">
          <div>周界防卫</div>
        </div>
      </el-col>
      <el-col class="sub-system region-system">
        <div class="icon-subsystem">
          <img src="/static/images/dashboard/icon-region.png">
          <div>全域监控</div>
        </div>
      </el-col>
      <el-col class="sub-system key-system">
        <div class="icon-subsystem">
          <img src="/static/images/dashboard/icon-key.png">
          <div>重点区域管控</div>
        </div>
      </el-col>
    </el-row>

    <div class="title">
      天津园区
    </div>
    <div class="sub-title">
      综合安防集成管理平台
    </div>
  </div>
</template>

<script>
export default {
  name: 'Portal',
  methods: {
    doorSubSystem: function() {
      this.$router.push('/device/list')
    }
  }
}
</script>

<style scoped>
  .sub-system {
    width: 20%;
    height: 100vh;
    border: 2px solid #3a8ee6;
    font-size: 24px;
    color: #F5F7FA;
    text-align: center;
    text-shadow: 1px 1px 2px black;
  }

  .control-system {
    background: url("/static/images/dashboard/bg-control.jpg") -225px;
    background-size: cover;
  }

  .door-system {
    background: url("/static/images/dashboard/bg-door.jpg") center;
    background-size: cover;
  }

  .defence-system {
    background: url("/static/images/dashboard/bg-defence.jpg") -225px;
    background-size: cover;
  }

  .region-system {
    background: url("/static/images/dashboard/bg-region.jpg") -225px;
    background-size: cover;
  }

  .key-system {
    background: url("/static/images/dashboard/bg-key.jpg") -225px;
    background-size: cover;
  }

  .icon-subsystem img {
    padding: 10px;
    margin-top: 35vh;
    margin-bottom: 20px;
    border-radius: 50%;
    background-color: #014886;
    border: 2px solid #00ffff;
  }

  .title {
    position: absolute;
    top: 10vh;
    left: 45vw;
    font-size: 36px;
    color: #F5F7FA;
    text-shadow: 2px 2px 2px black;
  }

  .sub-title {
    position: absolute;
    top: calc(10vh + 60px);
    left: 45vw;
    font-size: 24px;
    color: #F5F7FA;
    text-shadow: 2px 2px 2px black;
  }
</style>