/* 车辆检测与分析 */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.vehicle_detection {
  width: 100%;
  height: auto;
}

.vehicle_detection .wrapper {
  width: 1400px;
  margin: 60px auto 20px;
  display: flex;
  flex-wrap: wrap;
}

.vehicle_detection .list {
  width: 690px;
  height: auto;
  border-radius: 4px;
  /* overflow: hidden; */
  margin-right: 20px;
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
}

.vehicle_detection .wrapper .list:nth-child(3n),
.vehicle_detection .wrapper .list:nth-last-child(1) {
  margin-right: 0;
}

.vehicle_detection .list img {
  width: 100%;
}

.vehicle_detection .list .content {
  width: 100%;
  height: auto;
  padding: 20px 20px;
  background-color: #f3f8fe;
  margin: 0;
}

.vehicle_detection .content .title {
  font-size: 18px;
  color: #333;
  margin-bottom: 16px;
}

.vehicle_detection .content .text {
  font-size: 16px;
  color: #666;
}

.vehicle_detection .introduction .list {
  margin-right: 20px;
}

.vehicle_detection .introduction .list:nth-child(3n) {
  margin-right: 20px;
}
.vehicle_detection .introduction .list:nth-child(2n),
.vehicle_detection .introduction .list:nth-last-child(1) {
  margin-right: 0;
}

/* 应用场景 */

.vehicle_detection .scene {
  width: 1400px;
  margin: 60px auto 20px;
  display: flex;
  flex-wrap: wrap;
}

.vehicle_detection .scene .list {
  width: 440px;
  height: 350px;
  border: 1px solid #4c7fc1;
  position: relative;
  margin-right: 40px;
  margin-bottom: 20px;
}

.vehicle_detection .scene .list .box_bottom {
  width: 100%;
  height: 90px;
  position: absolute;
  bottom: 0;
  left: 0;
  text-align: center;
}

.vehicle_detection .box_bottom img {
  position: absolute;
  width: 100%;
  height: 100%;
  left: 0;
  top: 0;
}

.vehicle_detection .box_bottom .text {
  font-size: 22px;
  color: #fff;
  position: relative;
  z-index: 2;
  line-height: 100px;
}

/* 应用产品 */
.vehicle_detection .product .list {
  width: 452px;
  margin-right: 20px;
}

.vehicle_detection .product .list .content {
  height: auto;
  background-color: transparent;
  border: 1px solid #f1f1f1;
}
.vehicle_detection .scene .list > img:first-of-type {
  height: 290px;
  object-fit: cover;
}
.vehicle_detection .product .list > img:first-of-type {
  height: 280px;
  object-fit: cover;
}
@media screen and (max-width: 1400px) {
  .vehicle_detection {
    padding: 0 20px;
  }

  .vehicle_detection .wrapper {
    width: 100%;
    height: auto;
    justify-content: flex-start;
  }

  .vehicle_detection .list .content {
    height: auto;
  }

  .vehicle_detection .wrapper .list {
    width: calc((100% - 40px) / 3);
    margin-right: 20px;
  }

  .vehicle_detection .wrapper .list:nth-last-child(3n).vehicle_detection .wrapper .list:nth-last-child(1) {
    margin-right: 0;
  }

  .vehicle_detection .introduction .list {
    width: calc((100% - 20px) / 2);
  }

  .vehicle_detection .scene .list {
    height: auto;
    overflow: hidden;
    margin-right: 20px;
  }

  .vehicle_detection .product .list .content {
    height: auto;
  }
}

@media screen and (max-width: 1100px) {
  .vehicle_detection .scene .list .box_bottom {
    width: 100%;
    height: 60px;
  }

  .vehicle_detection .scene .box_bottom img {
    height: 60px;
  }

  .vehicle_detection .box_bottom .text {
    font-size: 16px;
    line-height: 70px;
  }
}

@media screen and (max-width: 800px) {
  .vehicle_detection .box_bottom .text {
    font-size: 14px;
  }
}

@media screen and (max-width: 767px) {
  .vehicle_detection .wrapper {
    margin: 30px auto 20px;
    width: 80%;
    display: flex;
    flex-direction: column;
  }

  .vehicle_detection .wrapper .list {
    flex: none;
    width: 100%;
    margin-right: 0;
  }

  .vehicle_detection .wrapper .list:nth-child(2n),
  .vehicle_detection .wrapper .list:nth-last-child(1) {
    margin-right: 0;
  }
  .vehicle_detection .content .text{
    font-size: 14px;
  }
}

@media screen and (max-width: 500px) {
  .vehicle_detection .wrapper {
    width: 100%;
  }

  .vehicle_detection .wrapper .list {
    width: 100%;
  }
}