.product4-1 {
  padding: 132px 0;
}

.product4-1 .left {
  padding-top: 40px;
  width: 54%;
}

.product4-1 .left .common-pic-title {
  font-weight: bold;
  line-height: 1.4;
  margin-bottom: 62px;
}

.product4-1 .left .intr p {
  color: #060E16;
  font-size: 22px;
  line-height: 1.9;
}

.product4-1 .right {
  width: 46%;
}

.product4-1 .right img {
  width: 100%;
}

.product4-2 {
  height: 640px;
}

.product4-2 .intr {
  /* background: rgba(0, 32, 95, 0.6); */
  width: 100%;
  height: 100%;
  color: #FFFFFF;
  text-align: center;
  padding: 0 5%;
}

.product4-2 .intr h2 {
  font-size: 40px;
  margin-bottom: 64px;
}

.product4-2 .intr p {
  font-size: 24px;
  max-width: 713px;
  margin: 0 auto;
  line-height: 1.6;
}

.product4-3 {
  padding: 110px 0 184px;
}

.product4-3 .common-pic-title {
  line-height: 1.5;
  font-weight: bold;
}

.product4-3 .swiper-father {
  width: 100%;
  margin-top: 96px;
  position: relative;
  padding-bottom: 40px;
}

.product4-3 .swiper-slide img {
  width: 100%;
  max-width: 380px;
}

.product4-3 .swiper-slide .intr {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  padding: 0 30px 30px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  transition: all ease-out 0.4s;
}

.product4-3 .swiper-slide:hover .intr {
  background: rgba(1, 14, 27, 0.50);
  padding-bottom: 40%;
}

.product4-3 .swiper-slide .intr h2 {
  font-size: 29px;
  line-height: 1.4;
  color: #FFFFFF;
}

.product4-3 .swiper-slide .intr p {
  margin-top: 20px;
  line-height: 1.4;
  max-width: 120px;
  font-size: 20px;
  color: #FFFFFF;
  transition: all 0.4s ease;
}

/* .product4-3 .swiper-slide:nth-of-type(1) .intr h2{
  color: #000;
}

.product4-3 .swiper-slide:nth-of-type(1) .intr p{
  color: #000;
} */

.product4-3 .swiper-button-next,
.product4-3 .swiper-button-prev {
  width: 60px;
  height: 60px;
  background: rgba(0, 0, 0, 1);
  border-radius: 50%;
  outline: none;
  transition: all 0.4s ease;
}

.product4-3 .swiper-button-next:hover,
.product4-3 .swiper-button-prev:hover {
  background: rgba(0, 0, 0, 0.5);
}

.swiper-button-next:after,
.swiper-button-prev:after {
  font-size: 25px;
  color: #fff;
  font-weight: bold;
}

.product4-3 .swiper-button-prev {
  left: -90px;
  right: auto;
}

.product4-3 .swiper-button-next {
  right: -90px;
  left: auto;
}

.product4-3 .swiper-pagination {
  bottom: 0;
  left: 50%;
  transform: translate(-50%, 0);
}

.product4-3 .swiper-pagination-bullet {
  margin-right: 10px;
}

.product4-4 {
  padding: 0 0 126px;
}

.product4-4 .common-pic-title {
  line-height: 1.5;
  font-weight: bold;
}

.common-pic-title {

  background: url(/static/img/pic-title.png) no-repeat left 0.3em/1.2em 1em;
}

.product4-4 main {
  width: 100%;
  padding: 38px 56px 0;
  margin-top: 56px;
}

.product4-4 main p {
  font-size: 20px;
  color: #060E16;
  margin-bottom: 50px;
  width: 50%;
  line-height: 1.4;
}

.product4-4 main span {
  color: #666666;
}

.product4-4 main p.w-50 {
  display: inline-block;
  width: 48%;
}


/* 
*======================================================media===============================================================
*/
@media screen and (max-width:1919px) {}

/* 
*---------------------------------------------1519
*/
@media screen and (max-width:1519px) {
  .product4-1 .left .intr p {
    font-size: 18px;
  }

  .product4-1 .left .common-pic-title {
    margin-bottom: 48px;
  }

  .common-pic-title {
    font-size: 28px;
  }

  .product4-2 .intr h2 {
    font-size: 36px;
    margin-bottom: 38px;
  }

  .product4-2 .intr p {
    font-size: 20px;
  }

  .product4-2 {
    height: 540px;
  }

  .product4-4 main p {
    font-size: 18px;
    margin-bottom: 30px;
  }

  .product4-3 {
    padding: 110px 0;
  }

  .product4-3 .swiper-button-next,
  .product4-3 .swiper-button-prev {
    width: 40px;
    height: 40px;
  }

  .swiper-button-next:after,
  .swiper-button-prev:after {
    font-size: 20px;
  }

  .product4-3 .swiper-button-prev {
    left: -50px;
    right: auto;
  }

  .product4-3 .swiper-button-next {
    right: -50px;
    left: auto;
  }
}

/* 
*---------------------------------------------1280
*/
@media screen and (max-width:1100px) {

  .product4-1 .right,
  .product4-1 .left {
    width: 100%;
    margin-top: 20px;
  }

  .product4-1 .right img {
    width: auto;
    max-width: 100%;
  }

  .product4-2 .intr h2 {
    font-size: 32px;
    margin-bottom: 28px;
  }

  .product4-2 .intr p {
    font-size: 18px;
  }

  .product4-1 {
    padding: 44px 0
  }

  .common-pic-title {
    font-size: 24px;
  }


  .product4-4 main p {
    font-size: 16px;
  }

  .product4-3 .swiper-father {
    padding: 0 50px 40px;
  }

  .product4-3 .swiper-button-prev {
    left: 0px;
    right: auto;
  }

  .product4-3 .swiper-button-next {
    right: 0px;
    left: auto;
  }

  .product4-3 .swiper-slide .intr {
    padding-bottom: 40px;
  }

}

/* 
*---------------------------------------------991
*/
@media screen and (max-width:991px) {
  .common-pic-title br {
    display: none;
  }

  .product4-1 .left .common-pic-title {
    margin-bottom: 28px;
  }

  .product4-3 .swiper-father {
    margin-top: 44px;
  }

  .product4-3 {
    padding: 44px 0;
  }

  .product4-4 {
    padding: 0 0 44px;
  }

  .product4-4 main {
    margin-top: 34px;
  }

  .product4-4 main p.w-50 {
    width: 100%;
  }

  .common-pic-title {
    font-size: 22px;
  }

  .product4-1 .left {
    padding-top: 0;
    margin-top: 0;
  }

}

/* 
*---------------------------------------------768
*/
@media screen and (max-width:768px) {

  .product4-4 main p {
    width: 100%;
  }

  .product4-1 .left .intr p {
    font-size: 16px;
  }

  .product4-2 {
    height: 100vh;
  }

  .product4-3 .common-pic-title {
    margin-left: 0px;
  }

  .common-pic-title {
    font-size: 18px;
  }

  .product4-1 .left .intr p {
    font-size: 14px;
  }

  .product4-1 .left .intr p br {
    display: none;
  }

  .product4-2 .intr h2 {
    font-size: 22px;
  }

  .product4-2 .intr p {
    font-size: 14px;
  }

  .product4-4 main p {
    font-size: 14px;
    margin-bottom: 15px;
  }
}

/* 
*---------------------------------------------480
*/
@media screen and (max-width:480px) {
  .product4-3 .swiper-father {
    padding: 0 0 40px;
  }

  .product4-3 .swiper-button-prev {
    display: none;
  }

  .product4-3 .swiper-button-next {
    display: none;
  }

  .product4-3 .swiper-slide .intr {
    padding-bottom: 40px;
  }

  .product4-4 main {
    width: 100%;
    padding: 38px 20px 0;
  }
}