.comBannerTitle767 {
  font-size: 22px;
  line-height: 1.5;
  text-align: center;
}
.comTitle767 {
  font-weight: 600;
  font-size: 20px;
  line-height: 29px;
}
.centerMg1023 {
  margin-left: 20px;
  margin-right: 20px;
}
.centerPd1023 {
  padding-left: 20px;
  padding-right: 20px;
}
.centerMg767 {
  margin-left: 4vw;
  margin-right: 4vw;
}
.centerPd767 {
  padding-left: 4vw;
  padding-right: 4vw;
}
@media screen and (max-width: 1200px) {
  body .auto-center {
    padding-left: 30px;
    padding-right: 30px;
  }
  body .banner-bg {
    width: 100vw;
  }
  body .banner .pic {
    width: 450px;
    height: auto;
  }
  body .banner .con .title {
    font-size: 42px;
  }
  body .banner .con .subtitle {
    font-size: 18px;
    max-width: 470px;
  }
  body .use {
    padding-left: 0;
    padding-right: 0;
  }
}
@media screen and (max-width: 1023px) {
  body .banner {
    padding-bottom: 80px;
  }
  body .banner .pic {
    width: 420px;
    height: auto;
  }
  body .banner .con {
    padding-right: 10px;
  }
  body .banner .con .title {
    font-size: 30px;
    margin-bottom: 20px;
  }
  body .banner .con .subtitle {
    font-size: 16px;
    margin-bottom: 30px;
  }
  body .banner .pic {
    width: 350px;
  }
  body .use .h2 {
    font-size: 32px;
  }
  body .use .subtitle {
    font-size: 18px;
  }
  body .use .item .con .title {
    font-size: 22px;
  }
  body .use .item .con .subt {
    font-size: 14px;
    padding-top: 16px;
    padding-bottom: 8px;
  }
  body .use .item .con .tags .tag {
    font-size: 12px;
  }
  body .use .item .img {
    width: 49%;
  }
  body .use .item .img + .con {
    padding-left: 10px;
  }
}
@media screen and (max-width: 767px) {
  .auto-center {
    padding-left: 4vw;
    padding-right: 4vw;
  }
  body {
    min-width: 100%;
  }
  body .banner {
    flex-direction: column;
    height: auto;
    padding-top: 108px;
    padding-bottom: 40px;
  }
  body .banner .con {
    padding-right: 0;
  }
  body .banner .con .title {
    font-size: 22px;
    line-height: 1.5;
    text-align: center;
  }
  body .banner .con .subtitle {
    width: auto;
    font-size: 14px;
    text-align: center;
  }
  body .banner .con #btn-group {
    justify-content: center;
  }
  body .banner .pic {
    margin: 40px auto 0;
    width: 86.8vw;
    height: auto;
  }
  body .function {
    margin-top: 10vw;
    grid-template-columns: repeat(2, 1fr);
    grid-gap: 10px;
    padding: 0;
  }
  body .function .item {
    padding: 4vw 4vw 0;
  }
  body .function .item .title {
    font-size: 14px;
    line-height: 1.5em;
    margin: 2vw 0;
  }
  body .function .item .introduce {
    font-size: 12px;
    line-height: 1.5em;
  }
  body .use {
    padding: 15vw 0 0;
    padding-bottom: 13vw;
  }
  body .use .before {
    font-size: 14px;
    line-height: 1em;
  }
  body .use .h2 {
    font-size: 22px;
    line-height: 1.5;
    text-align: center;
    max-width: 100%;
  }
  body .use .subtitle {
    font-size: 14px;
    line-height: 1.5em;
    max-width: 100%;
    margin: 2vw auto 10vw;
  }
  body .use .item {
    flex-direction: column;
  }
  body .use .item .img {
    width: 100%;
    margin-top: 3vw;
  }
  body .use .item .con .title {
    font-weight: 600;
    font-size: 20px;
    line-height: 29px;
  }
  body .use .item .con .subt {
    font-size: 12px;
    line-height: 1.5em;
    padding-top: 2vw;
    padding-bottom: 1.5vw;
  }
  body .use .item .con .tags .tag {
    font-size: 12px;
    height: 24px;
    line-height: 24px;
    margin-top: 3vw;
    margin-right: 3vw;
    padding: 0 1vw;
  }
  body .use .item + .item {
    margin-top: 15vw;
  }
  body .use .item .img + .con {
    padding-left: 0px;
  }
  body .use .item:nth-child(2n) {
    flex-direction: column-reverse;
  }
}