.bannercc ul {
  flex-wrap: wrap;
}

.bannercc ul li {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 0 40px 0;
  width: calc(100%/4.5);
  background: #FFFFFF;
  border: 2px solid #E6E6E6;
  border-radius: 10px;
  overflow: hidden;
}

.bannercc ul li:hover {
  border: 2px solid #3F8E4D;
  transition: all 0.6s;
}

.bannercc ul li img {
  display: block;
  max-width: 100%;
  height: auto;
}

.cc .l {
  padding: 0 0 40px 0;
  flex-direction: column;
  width: 20%;
  box-sizing: border-box;
}

.cc .l .titbox h4,
.cc .l .titbox h5 {
  font-weight: bold;
}

.cc .r {
  width: 70%;
}

.cc_box {
  padding: 100px 0 120px 0;
  box-sizing: border-box;
  background-image: url(../image/case/背景\ \(30\).png);
  background-position: center center;
  background-repeat: no-repeat;
  background-size: 100% 100%;
}

.swiper-button-prevcc,
.swiper-button-nextcc {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 20px;
  width: 70px;
  height: 70px;
  color: #000;
  background: rgba(0, 0, 0, 0.1);
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 50%;
}

.swiper-button-prevcc:hover,
.swiper-button-nextcc:hover {
  background-color: #3F8E4D;
  color: #fff;
  transition: all 0.6s;
}

.swiper-containercc {
  overflow: hidden;
}

@media screen and (max-width: 1680px) {
  .cc_box {
    padding: 90px 0 110px 0;
  }

  .cc .l .titbox h4,
  .cc .l .titbox h5 {
    font-size: 24px;
  }

  .cc .l {
    padding: 0 0 30px 0;
  }

  .bannercc ul li {
    margin: 0 0 30px 0;
  }

  .swiper-button-prevcc,
  .swiper-button-nextcc {
    width: 60px;
    height: 60px;
  }
}

@media screen and (max-width: 1600px) {
  .cc_box {
    padding: 80px 0 100px 0;
  }

  .cc .l .titbox h4,
  .cc .l .titbox h5 {
    font-size: 22px;
  }

  .cc .l {
    padding: 0 0 20px 0;
  }

  .bannercc ul li {
    margin: 0 0 20px 0;
  }

  .swiper-button-prevcc,
  .swiper-button-nextcc {
    width: 50px;
    height: 50px;
  }
}

@media screen and (max-width: 1440px) {
  .cc_box {
    padding: 70px 0 90px 0;
  }

  .cc .l .titbox h4,
  .cc .l .titbox h5 {
    font-size: 20px;
  }

  .cc .l {
    padding: 0 0 15px 0;
  }

  .bannercc ul li {
    margin: 0 0 15px 0;
  }

  .swiper-button-prevcc,
  .swiper-button-nextcc {
    width: 40px;
    height: 40px;
  }
}

@media screen and (max-width: 1366px) {
  .cc_box {
    padding: 60px 0 80px 0;
  }

  .cc .l .titbox h4,
  .cc .l .titbox h5 {
    font-size: 18px;
  }
}

@media screen and (max-width: 1280px) {
  .cc_box {
    padding: 50px 0 70px 0;
  }

  .cc .l .titbox h4,
  .cc .l .titbox h5 {
    font-size: 16px;
  }
}

@media screen and (max-width: 1024px) {
  .cc_box {
    padding: 40px 0 60px 0;
  }
}

@media screen and (max-width: 980px) {
  .cc_box {
    padding: 30px 0 50px 0;
  }

  .cc .l,
  .cc .r {
    width: 100%;
  }

        .cc {
          flex-wrap: wrap;
        }

        .arrow_btnbox {
          justify-content: space-between;
          margin: 15px 0;
        }
}

@media screen and (max-width: 768px) {
  .cc_box {
    padding: 20px 0 40px 0;
  }
}

@media screen and (max-width: 640px) {
  .cc_box {
    padding: 15px 0 30px 0;
  }

    .bannercc ul li {
      width: calc(100%/3.5);
    }
}

@media screen and (max-width: 375px) {
  .cc_box {
    padding: 15px 0 20px 0;
  }
}