.section4 {
      overflow: hidden;
      background: #F5F7FB;
      padding-top: 140px;
      padding-bottom: 120px;
  }

  .List4 {
      display: flex;
  }

  .List4 h1 {
      width: 100%;
      border-top: 1px solid #D9D9D9;
      padding-top: 25px;
      padding-right: 60px;
      padding-bottom: 60px;
      line-height: 40px;
      font-size: 26px;
      position: relative;
      display: flex;
      justify-content: space-between;
      align-items: center;
      transition: 0.5s;
  }

  .List4 h1 img {
      width: 40px;
      height: 40px;
      object-fit: contain;
      filter: contrast(10);
      opacity: 0.6;
      transition: 0.5s;
  }

  .List4 h1::after {
      content: "";
      display: block;
      position: absolute;
      left: 0;
      top: -2px;
      width: 0%;
      height: 3px;
      background: var(--color);
      transition: 0.5s;
  }

  .List4 h1.cur,
  .List4 h1:hover {
      color: var(--color);
  }

  .List4 h1.cur::after,
  .List4 h1:hover::after {
      width: 100%;
  }

  .List4 h1.cur img,
  .List4 h1:hover img {
      filter: contrast(1);
      opacity: 1;
  }


  @media (max-width: 992px) {
      .List4 h1 {
          padding-right: 0;
          font-size: 18px;
          display: flex;
          justify-content: space-around;
          align-items: center;
      }

      .List4 h1 img {
          width: 30px;
          height: 30px;
      }

      .section4 {
          padding: 90px 0;
      }
  }


  @media (max-width: 640px) {
      .section4 {
          padding: 60px 0;
          padding-top: 0;
      }

      .List4 h1 {
          padding: 15px 0 30px;
          font-size: 16px;
          display: flex;
          align-items: center;
          flex-direction: column;
      }

  }

  .box4 .item {
      display: none;
      overflow: hidden;
      border-radius: 80px 0 80px 0;
  }

  .box4Swiper {
      position: relative;
  }

  .box4Slide {
      background: var(--color);
      display: flex;
  }

  .box4Slide .text {
      width: 50%;
      padding: 120px 90px 75px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
  }

  .box4Slide .text h1 {
      font-weight: 400;
      font-size: 32px;
      line-height: 1;
      color: #FFFFFF;
  }

  .box4Slide .text span {
      display: block;
      width: 100px;
      height: 4px;
      background: var(--color2);
      margin-top: 30px;
      margin-bottom: 45px;
  }

  .box4Slide .text h2 {
      font-size: 16px;
      line-height: 2;
      text-align: justify;
      color: #fff;
      width: 100%;
      max-width: 400px;
  }

  .box4Slide .text .aa {
      border-top: 1px solid #909090;
      padding-top: 30px;
      display: flex;
      justify-content: space-between;
  }

  .box4Slide .text .aa p {
      margin: 0;
      font-size: 16px;
      line-height: 1;
      color: #fff;
  }



  .box4Slide .imgBox {
      width: 50%;
      overflow: hidden;
  }

  .box4Slide .imgBox img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: 0.5s;
  }

  .box4Slide:hover .imgBox img {
      transform: scale(1.08);
  }


  .box4Swiper .swiper-button-next {
      width: 75px;
      height: 75px;
      background: var(--color);
      margin: 0;
      right: 0;
      left: auto;
      top: 0;
      transform: rotateY(180deg);
  }

  .box4Swiper .swiper-button-prev {
      width: 75px;
      height: 75px;
      background: var(--color);
      margin: 0;
      right: 75px;
      left: auto;
      top: 0;
  }

  .box4Swiper .swiper-button-next:after,
  .box4Swiper .swiper-button-prev:after {
      color: #0000;
      width: 15px;
      height: 15px;
      background: url(/assets/img/jiantou_9.png);
      background-size: cover;
      filter: invert(1);
  }


  @media (max-width: 1440px) {
      .box4Slide .text {
          padding: 60px;
      }
  }

  @media (max-width: 1200px) {
      .box4Slide .text span {
          margin-top: 20px;
          margin-bottom: 30px;
      }

      .box4Slide .text h2 {
          line-height: 1.5;
      }

      .box4Slide .imgBox img {
          min-height: 350px;
      }
  }

  @media (max-width: 992px) {
      .box4 .item {
          border-radius: 60px 0 60px 0;
      }


      .box4Slide .text {
          padding: 45px 30px;
      }

      .box4Slide .text h1 {
          font-size: 24px;
      }
  }

  @media (max-width: 640px) {
      .box4Slide {
          background: var(--color);
          display: flex;
          flex-wrap: wrap;
      }

      .box4Slide .text {
          width: 100%;
      }

      .box4Slide .imgBox {
          width: 100%;
      }

      .box4Slide .imgBox img {
          min-height: inherit;
      }

      .box4Swiper .swiper-button-next {
          right: auto;
          left: 75px;
          top: auto;
          bottom: 0;
          height: 45px;
      }

      .box4Swiper .swiper-button-prev {
          right: auto;
          left: 0;
          top: auto;
          bottom: 0;
          height: 45px;
      }
  }