:root {
  --index-bg-color1: linear-gradient(0deg, #024735 0%, #002b24 100%);
  --index-bg-color2: #004030;
}

.index {
  width: 100%;
  height: 100%;
  background: #002b24;
}

.top_nav {
  background: linear-gradient(180deg, #0b865b 0%, #01704d 50%, #004731 100%);
  border-bottom: 1px solid #13d793;
}
@media screen and (max-width: 767px) {
  .top_nav .main_wrap {
    height: 0.4rem;
    padding-left: 0.15rem;
  }
  .main_wrap img {
    width: 1rem;
  }
}

@media screen and (min-width: 1100px) {
  .top_nav .main_wrap {
    /* max-width: 10.24rem; */
    /* margin: 0 auto; */
    margin-left: 1.9rem;
    height: 0.48rem;
  }
  .main_wrap img {
    width: 1.44rem;
  }
}

@media screen and (max-width: 1099px) and (min-width: 766px) {
  .top_nav .main_wrap {
    margin-left: 0.7rem;
    height: 0.48rem;
  }
  .main_wrap img {
    width: 1.44rem;
  }
}

/* ===========  banner  =============== */

.banner_wrap {
  margin: 0 auto;
  position: relative;
}
.banner_wrap img {
  height: 100%;
  width: 100%;
  object-fit: cover;
}
.banner_wrap h3 {
  position: absolute;
}
.banner_wrap p {
  position: absolute;
}
.banner_wrap .download_links {
  position: absolute;
}

.download_links .item {
  -webkit-user-select: none;
  -ms-user-select: none;
  -moz-user-select: none;
  -khtml-user-select: none;
  user-select: none;
  color: #dbdbdb;
  background-color: rgba(0, 0, 0, 0.4);
  border: 1px solid #ffea48;
  border-radius: 1rem;
}
@media screen and (max-width: 767px) {
  .banner_wrap {
    margin-top: -0.17rem;
    background: url("../images/gw_zs_2.png") no-repeat center;
    width: 100%;
    margin: 0 auto;
    height: 5.01rem;
  }
  .banner_wrap h3 {
    width: 2.6rem;
    top: 1.26rem;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.18rem;
    text-align: center;
  }
  .banner_wrap p {
    display: none;
  }

  /* 下载按钮 */
  .banner_wrap .download_links {
    top: 100%;
    left: 50%;
    transform: translate(-50%, 0%);
  }
  .download_links .item {
    width: 3.3rem;
    height: 0.46rem;
    padding-left: 0.15rem;
    margin-bottom: 0.15rem;
  }
  .download_links .item img {
    width: 0.24rem;
    height: 0.29rem;
  }
  .download_links .item span {
    font-size: 0.2rem;
    line-height: 1;
    margin-left: 0.1rem;
    /* margin-bottom: 0.1rem; */
  }
}

@media screen and (min-width: 1100px) {
  .banner_wrap {
    /* margin-top: -0.17rem; */
    background: url("../images/gw_zs.png") no-repeat center;
    width: 100%;
    margin: 0 auto;
    height: 7.23rem;
  }
  .banner_wrap h3 {
    top: 1.5rem;
    left: 1.9rem;
    font-size: 0.2rem;
  }

  .banner_wrap p {
    width: 6rem;
    top: 2rem;
    left: 1.9rem;
    font-size: 0.14rem;
  }

  /* 下载按钮 */
  .banner_wrap .download_links {
    top: 50%;
    left: 1.8rem;
    transform: translateY(-20%);
  }
  .download_links .item:hover {
    color: #e2a925;
    cursor: pointer;
  }
  .download_links .item {
    width: 4.5rem;
    height: 0.63rem;
    padding-left: 0.26rem;
    /* background-image: url("../images/gw_db_2.png");
    background-repeat: no-repeat; */
    margin-bottom: 0.3rem;
  }
  .download_links .item img {
    width: 0.33rem;
    height: 0.4rem;
  }
  .download_links .item span {
    font-size: 0.2rem;
    line-height: 1;
    margin-left: 0.22rem;
  }
}
@media screen and (max-width: 1099px) and (min-width: 766px) {
  .banner_wrap {
    /* margin-top: -0.17rem; */
    background: url("../images/pb_zs.png") no-repeat center;
    width: 100%;
    margin: 0 auto;
    height: 4.22rem;
  }
  .banner_wrap h3 {
    top: 1.2rem;
    left: 0.7rem;
    font-size: 0.16rem;
    width: 5rem;
  }

  .banner_wrap p {
    width: 4.5rem;
    top: 1.8rem;
    left: 0.7rem;
    font-size: 0.14rem;
  }

  /* 下载按钮 */
  .banner_wrap .download_links {
    top: 60%;
    left: 0.7rem;
    transform: translateY(20%);
  }
  .download_links .item:hover {
    color: #e2a925;
    cursor: pointer;
  }
  .download_links .item {
    width: 3rem;
    height: 0.34rem;
    padding-left: 0.15rem;
    margin-bottom: 0.15rem;
  }
  .download_links .item img {
    width: 0.2rem;
    height: 0.24rem;
  }
  .download_links .item span {
    font-size: 0.16rem;
    line-height: 1;
    margin-left: 0.1rem;
  }
}

/* ===========  tab  =============== */

.tab_wrap {
  background: var(--index-bg-color2);
  position: relative;
  z-index: 2;
}
.tab_wrap .tab_main_wrap {
  max-width: 12.8rem;
  margin: 0 auto;
  height: 100%;
  justify-content: space-around;
}
.tab_main_wrap .img_wrap img {
  width: 100%;
  height: 100%;
}
@media screen and (max-width: 767px) {
  .tab_wrap {
    height: 0.5rem;
    padding: 0 0.2rem;
    margin-top: 1.25rem;
  }
  .tab_wrap .img1 {
    width: 0.4rem;
    height: 0.18rem;
  }
  .tab_wrap .img2 {
    width: 0.36rem;
    height: 0.2rem;
  }
  .tab_wrap .img3 {
    width: 0.42rem;
    height: 0.22rem;
  }
  .tab_wrap .img4 {
    width: 0.46rem;
    height: 0.18rem;
  }
}

@media screen and (min-width: 1100px) {
  .tab_wrap {
    height: 0.7rem;
  }
  .tab_wrap .img1 {
    width: 0.79rem;
    height: 0.36rem;
  }
  .tab_wrap .img2 {
    width: 0.75rem;
    height: 0.4rem;
  }
  .tab_wrap .img3 {
    width: 0.44rem;
    height: 0.44rem;
  }
  .tab_wrap .img4 {
    width: 0.93rem;
    height: 0.36rem;
  }
}
@media screen and (max-width: 1099px) and (min-width: 766px) {
  .tab_wrap {
    height: 0.7rem;
  }
  .tab_wrap .img1 {
    width: 0.79rem;
    height: 0.36rem;
  }
  .tab_wrap .img2 {
    width: 0.75rem;
    height: 0.4rem;
  }
  .tab_wrap .img3 {
    width: 0.44rem;
    height: 0.44rem;
  }
  .tab_wrap .img4 {
    width: 0.93rem;
    height: 0.36rem;
  }
}

/* ===========  list  =============== */

.list_main_wrap {
  background: var(--index-bg-color1);
}
.list_main_wrap .main_wrap {
  max-width: 12.8rem;
  margin: 0 auto;
}
.main_wrap .head_title {
  text-align: center;
  position: relative;
}
.head_title h2 {
  line-height: 1;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  background: linear-gradient(
    0deg,
    #ffc300 36.9873046875%,
    #ffea65 83.6669921875%
  );
  -webkit-background-clip: text;
  color: transparent;
}

.desc_list_wrap {
  font-size: 0.14rem;
  color: #ccc;
}

.desc_list_wrap .item:nth-child(1) {
  background: linear-gradient(90deg, #00453a 0%, transparent 80%);
}

.desc_list_wrap .item:nth-child(2) {
  background: linear-gradient(90deg, transparent 20%, #004a3c 100%);
}

.desc_list_wrap .item:nth-child(3) {
  background: linear-gradient(90deg, #004d3d 0%, transparent 80%);
}

.desc_list_wrap .item:nth-child(4) {
  background: linear-gradient(90deg, transparent 20%, #025240 100%);
  margin-bottom: 0;
}

@media screen and (max-width: 767px) {
  .list_main_wrap {
    padding-bottom: 0.1rem;
  }
  /* 标题 */
  .head_title {
    margin-top: -0.6rem;
  }
  .head_title img {
    width: 1.5rem;
    height: 0.83rem;
  }
  .head_title .left_img {
    margin-right: -0.26rem;
  }
  .head_title .right_img {
    margin-left: -0.04rem;
    transform: rotateY(180deg);
  }
  .head_title h2 {
    bottom: 0.4rem;
    font-size: 0.2rem;
  }

  .desc_list_wrap {
    /* margin-top: 0.4rem; */
    padding: 0.1rem;
  }
  .desc_list_wrap .item {
    border-radius: 0.1rem;
    margin-bottom: 0.2rem;
    padding: 0.1rem;
  }

  .desc_list_wrap .item .main_text {
    flex: 1;
  }

  .desc_list_wrap .item .main_text h3 {
    font-size: 0.14rem;
  }
  .desc_list_wrap .item .main_text p {
    margin-top: 0.04rem;
    font-size: 0.08rem;
  }

  .desc_list_wrap .item:nth-child(1) img,
  .desc_list_wrap .item:nth-child(3) img {
    width: 0.58rem;
    height: 0.58rem;
    margin-left: 0.2rem;
    flex-shrink: 0;
  }

  .desc_list_wrap .item:nth-child(2) img,
  .desc_list_wrap .item:nth-child(4) img {
    width: 0.58rem;
    height: 0.58rem;
    margin-right: 0.2rem;
    flex-shrink: 0;
  }
}

@media screen and (min-width: 1100px) {
  .list_main_wrap {
    padding-bottom: 0.88rem;
  }
  /* 标题 */
  .head_title img {
    width: 5.48rem;
    height: 1.91rem;
  }
  .head_title .left_img {
    margin-right: -0.28rem;
  }
  .head_title .right_img {
    margin-left: -0.04rem;
    transform: rotateY(180deg);
  }
  .head_title h2 {
    bottom: 0.4rem;
    font-size: 0.53rem;
  }

  .desc_list_wrap {
    margin-top: 0.7rem;
    text-align: justify;
  }
  .desc_list_wrap .item {
    height: 2.5rem;
    border-radius: 0.1rem;
    margin-bottom: 0.88rem;
  }
  .desc_list_wrap .item .main_text p {
    margin-top: 0.16rem;
    line-height: 0.24rem;
  }

  .desc_list_wrap .item:nth-child(1),
  .desc_list_wrap .item:nth-child(3) {
    padding: 0 0.62rem 0 0.32rem;
  }
  .desc_list_wrap .item:nth-child(1) img,
  .desc_list_wrap .item:nth-child(3) img {
    margin-left: 0.8rem;
  }

  .desc_list_wrap .item:nth-child(2),
  .desc_list_wrap .item:nth-child(4) {
    padding: 0 0.32rem 0 0.62rem;
  }
  .desc_list_wrap .item:nth-child(2) img,
  .desc_list_wrap .item:nth-child(4) img {
    margin-right: 0.8rem;
  }
}
@media screen and (max-width: 1099px) and (min-width: 766px) {
  .list_main_wrap {
    padding: 0 0.7rem;
    padding-bottom: 0.88rem;
  }
  /* 标题 */
  .head_title img {
    width: 3rem;
    height: 1rem;
  }
  .head_title .left_img {
    margin-right: -0.28rem;
  }
  .head_title .right_img {
    margin-left: -0.04rem;
    transform: rotateY(180deg);
  }
  .head_title h2 {
    bottom: 0.4rem;
    font-size: 0.53rem;
  }

  .desc_list_wrap {
    margin-top: 0.7rem;
  }
  .desc_list_wrap .item {
    height: 1.8rem;
    border-radius: 0.1rem;
    margin-bottom: 0.4rem;
  }
  .desc_list_wrap .item .main_text p {
    margin-top: 0.16rem;
    line-height: 0.24rem;
  }

  .desc_list_wrap .item:nth-child(1),
  .desc_list_wrap .item:nth-child(3) {
    padding: 0 0.62rem 0 0.32rem;
  }
  .desc_list_wrap .item:nth-child(1) img,
  .desc_list_wrap .item:nth-child(3) img {
    margin-left: 0.8rem;
  }

  .desc_list_wrap .item:nth-child(2),
  .desc_list_wrap .item:nth-child(4) {
    padding: 0 0.32rem 0 0.62rem;
  }
  .desc_list_wrap .item:nth-child(2) img,
  .desc_list_wrap .item:nth-child(4) img {
    margin-right: 0.8rem;
  }
}

/* ===========  footer  =============== */

.footer_wrap {
  background-color: #003328;
}
.footer_wrap .main_wrap {
  margin: 0 auto;
  color: #267d67;
}
@media screen and (max-width: 767px) {
  .footer_wrap .main_wrap {
    height: 0.4rem;
    font-size: 0.12rem;
  }
}

@media screen and (min-width: 1100px) {
  .footer_wrap .main_wrap {
    height: 0.65rem;
    max-width: 12.8rem;
    font-size: 0.18rem;
  }
}
@media screen and (max-width: 1099px) and (min-width: 766px) {
  .footer_wrap .main_wrap {
    height: 0.4rem;
    font-size: 0.12rem;
  }
}