.index-title{
  width: 100%;
  height: 70vh;
  background-image: url('../images/index-title-bg.jpg');
  background-size: cover;
  position: relative;
  padding: 0 20%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  font-family:'微软雅黑' ;
}
.banner_bottom{
  background-image: url('../images/index-about-bg.png');
  background-position:80% 50%;
  background-size: 50vw ;
  background-repeat: no-repeat;
}
.service-line{
  width: fit-content;
}

@media(max-width: 1500px) {
  .servicebox {
    width: 70vw;
  }
}
@media(max-width: 1350px) {
  /* .service-line{
    width: 15vw;
  } */
  .servicebox {
    width: 75vw;
  }
}
@media(max-width: 1280px) {
  .servicebox {
    width: 80vw;
  }
}
@media(max-width: 1080px) {
  /* .service-line{
    width: 20vw;
  } */
}

@media(max-width: 800px) {
  .index-title{
    padding: 0 10%;
  }
  /* .service-line{
    width: 30vw;
  } */
}
@media(max-width: 670px) {
  /* .service-line{
    width: 35vw;
  } */

}
@media(max-width: 540px) {
  /* .service-line{
    width: 40vw;
  } */
}
@media(max-width: 439px) {
  .index-title{
    padding: 0 5%;
  }
  /* .service-line{
    width: 45vw;
  } */
}