.banner {
  width: 100%;
  height: 384px;
  overflow: hidden;
  position: relative;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-pack: center;
      justify-content: center;
  -ms-flex-align: center;
      align-items: center;
  -ms-flex-direction: column;
      flex-direction: column;
}
.banner img {
  position: absolute;
  display: block;
  min-height: 100%;
  min-width: 100%;
}
.banner b, .banner span {
  position: relative;
  z-index: 1;
  color: #ffffff;
  font-size: 18px;
}
.banner b {
  display: none;
  font-size: 60px;
  font-family: YouSheBiaoTiHei;
  margin-bottom: 30px;
}
.part1-mod {
  background: url(../img/img_pinpai@2x-a58af4bf.png) repeat-x center;
  background-size: auto 100%;
  padding-bottom: 100px;
}
.part1-mod .tip {
  color: #666;
  line-height: 22px;
  padding: 40px 50px;
  text-indent: 2em;
  position: relative;
}
.part1-mod .img1, .part1-mod .img2 {
  position: absolute;
  display: block;
  width: 107px;
  top: 0;
  left: 0;
}
.part1-mod .img2 {
  left: auto;
  top: auto;
  bottom: 0;
  right: 0;
}
.part2-mod {
  padding-bottom: 100px;
}
.part2-mod img {
  display: block;
  width: 1142px;
  margin: 0 auto;
}
.part3-mod {
  background-color: #FAFAFA;
  padding-bottom: 70px;
}
.part3-mod ul {
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
      flex-wrap: wrap;
}
.part3-mod ul li {
  list-style: none;
  width: 578px;
  border: 1px solid #BC2E1B;
  border-radius: 5px;
  margin-bottom: 20px;
  box-sizing: border-box;
  padding: 25px;
}
.part3-mod ul li:nth-child(odd) {
  margin-right: 40px;
}
.part3-mod ul li h3 {
  font-size: 20px;
}
.part3-mod ul li p {
  font-size: 14px;
  color: #666;
  line-height: 24px;
}
.part3-mod ul li img {
  display: none;
}
.part4-mod {
  background-color: #F3F4F5;
  padding-bottom: 70px;
}
.part4-mod .tip {
  font-size: 16px;
  line-height: 22px;
  color: #666666;
}
.part4-mod ul {
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
      flex-wrap: wrap;
  margin-top: 45px;
  -ms-flex-pack: justify;
      justify-content: space-between;
}
.part4-mod ul li {
  list-style: none;
  width: 370px;
  border-radius: 5px;
  margin-bottom: 30px;
  box-sizing: border-box;
  padding: 25px;
  box-shadow: 0px 3px 6px rgba(0, 0, 0, 0.16);
  margin-right: 45px;
  position: relative;
}
.part4-mod ul li:nth-child(3n) {
  margin-right: 0;
}
.part4-mod ul li h3 {
  font-size: 20px;
}
.part4-mod ul li p {
  font-size: 14px;
  color: #666;
  line-height: 24px;
}
.part4-mod ul li img {
  position: absolute;
  height: 86px;
  right: 25px;
  bottom: 6px;
}
@media screen and (max-width: 1000px) {
  .banner {
    width: 100%;
    height: 2.44rem /* 183/75 */;
  }
  .banner img {
    min-width: auto;
    min-height: auto;
    width: 100%;
  }
  .part1-mod {
    padding-bottom: 0.8rem /* 60/75 */;
  }
  .part1-mod .tip {
    padding: 0.533333rem /* 40/75 */;
  }
  .part1-mod .img1, .part1-mod .img2 {
    width: 1.426667rem /* 107/75 */;
  }
  .part2-mod {
    padding-bottom: 0.533333rem /* 40/75 */;
  }
  .part2-mod img {
    width: 100%;
  }
  .part3-mod {
    padding-bottom: 0.066667rem /* 5/75 */;
  }
  .part3-mod ul {
    padding-top: 0.533333rem /* 40/75 */;
  }
  .part3-mod ul li {
    width: 33%;
    border: none;
    margin-bottom: 0.6rem /* 45/75 */;
    padding: 0;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-direction: column;
        flex-direction: column;
    -ms-flex-align: center;
        align-items: center;
    -ms-flex-pack: end;
        justify-content: flex-end;
  }
  .part3-mod ul li:nth-child(odd) {
    margin-right: 0;
  }
  .part3-mod ul li h3 {
    font-size: 0.346667rem /* 26/75 */;
    margin-top: 0.133333rem /* 10/75 */;
  }
  .part3-mod ul li p {
    display: none;
  }
  .part3-mod ul li img {
    display: block;
    max-width: 0.533333rem /* 40/75 */;
    max-height: 0.533333rem /* 40/75 */;
  }
  .part4-mod {
    background-color: #F3F4F5;
    padding-bottom: 0.933333rem /* 70/75 */;
  }
  .part4-mod ul {
    margin-top: 0.6rem /* 45/75 */;
  }
  .part4-mod ul li {
    list-style: none;
    width: 47%;
    border-radius: 0;
    box-sizing: border-box;
    padding: 0.426667rem /* 32/75 */;
    box-shadow: 0 0.04rem /* 3/75 */ 0.08rem /* 6/75 */ rgba(0, 0, 0, 0.16);
    margin: 0 0.133333rem /* 10/75 */ 0.293333rem /* 22/75 */;
    position: relative;
    border-bottom: 0.066667rem /* 5/75 */ solid #CC1600;
  }
  .part4-mod ul li:nth-child(3n) {
    margin: 0 0.133333rem /* 10/75 */ 0.293333rem /* 22/75 */;
  }
  .part4-mod ul li h3 {
    font-size: 0.346667rem /* 26/75 */;
  }
  .part4-mod ul li p {
    font-size: 0.293333rem /* 22/75 */;
    line-height: 0.533333rem /* 40/75 */;
  }
  .part4-mod ul li img {
    display: none;
  }
}