.nav a {
  font-size: 18px;
  color: #393939;
}
.nav-item {
  height: 60px;
}
.nav-item:hover .submenu {
  display: block;
  height: 350px;
  opacity: 1;
  visibility: visible;
  z-index: 99;
}
.submenu {
  text-transform: none;
  width: 165px;
  height: 0;
  position: absolute;
  background: rgba(38, 62, 94, 0.95);
  left: -15px;
  top: 60px;
  z-index: 0;
  opacity: 0;
  visibility: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: all 1s;
  -webkit-transition: all 1s;
}
.submenu ul {
  padding: 10px;
}
.submenu-item {
  text-align: center;
  margin: 12px 0;
}
.submenu-item a {
  font-size: 14px;
  color: #ffffff;
}
.m-menu-btn {
  width: 22px;
  height: 26px;
  text-align: center;
  cursor: pointer;
  position: relative;
}
.m-menu-btn .icon-bar {
  display: block;
  width: 30px;
  height: 2px;
  border-radius: 1px;
  margin-top: 8px;
  background: #222;
}
.m-menu {
  display: none;
  position: absolute;
  left: 0;
  top: 80px;
  margin: 0;
  width: 100%;
  background: #2a71b9;
  z-index: 1100;
  border-top: rgba(255, 255, 255, 0.5) 1px solid;
}
.m-menu dl {
  padding: 0px 20px 10px;
}
.m-menu dd {
  line-height: 50px;
  border-bottom: #ddd 1px solid;
}
.m-menu dd > span {
  cursor: pointer;
  background: url(../img/jia.png) right center no-repeat;
}
.m-menu dd > span.active {
  color: #e3e4e5;
  background: url(../img/jian.png) right center no-repeat;
}
.m-menu dd > span,
.m-menu dd a {
  display: block;
  color: #fff;
  font-size: 17px;
}
.m-menu dd ul {
  display: none;
  float: left;
}
.m-menu dd ul li {
  width: 50%;
  float: left;
}
.m-menu dd ul a {
  font-size: 15px;
  border-bottom: rgba(255, 255, 255, 0.2) 1px solid;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.index-banner {
  width: 100%;
  height: 100%;
  margin-left: auto;
  margin-right: auto;
  color: #ffffff;
}
.index-banner img {
  min-height: 240px;
}
.banner1 {
  height: 500px;
  background: url("../img/banner1-bg.jpg") no-repeat;
}
.banner1>div>div{ width: 60%;}
.banner2 {
  height: 500px;
  background: url("../img/banner2-bg.jpg") no-repeat;
}
.banner2>div>div{ width: 60%;}
.banner-left {
  margin-top: 150px;
  float: left;
}
.banner-left h3 {
  font-size: 36px;
  margin-bottom: 30px;
}
.banner-left p {
  font-size: 16px;
  margin-bottom: 20px;
}
.banner-right {
  margin-top: 100px;
  float: right;
}
.banner-btn {
  background-color: #4070da;
  text-align: center;
  line-height: 55px;
  padding: 15px 50px;
  color: #ffffff;
}
.banner-btn:hover {
  color: #ffffff;
}
.section {
  padding: 50px 0;
}
.section-title {
  font-size: 34px;
  text-align: center;
  margin-bottom: 80px;
}
.section-title a {
  color: #0d1318;
  text-decoration: none;
}

.i-solution-box-ver,
.i-solution-box-hor {
  float: left;
  margin-bottom: 10px;
  height: 670px;
}
.i-solution-box-ver {
  width: 24%;
  margin-left: 1%;
}
/* 修改 */
.i-solution-box-hor {
  width: 75%;
}
.m-solution-box {
  width: 100%;
  padding: 0 3%;
}
.m-solution-grid {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: space-around;
}
.m-solution-box .m-solution-grid-item {
  width: 110px;
  height: 110px;
  margin-bottom: 20px;
  position: relative;
}
.m-solution-box .m-solution-img {
  width: 110px;
  height: 110px;
  border-radius: 3%;
}
.m-solution-box .m-soltion-img-icon {
  position: absolute;
  font-size: 48px;
  color: #fff;
  left: 30px;
  top: 12px;
  z-index: 9;
}
.m-solution-box .m-solution-shade {
  width: 100%;
  height: 100%;
  background: rgba(111, 111, 111, 0.38);
  position: absolute;
  left: 0;
  top: 0;
  z-index: 1;
}
.m-solution-item-title {
  width: 100%;
  position: absolute;
  left: 0;
  bottom: 3px;
  text-align: center;
  color: #fff;
  z-index: 9;
}
.first-sub {
  position: relative;
  display: block;
  border-radius: 0.1rem;
  overflow: hidden;
}

.first-sub:hover .first-bg {
  background: rgba(0, 78, 162, 0.9);
}

.first-sub:hover .first-text .first-icon {
  left: 0;
  transform: translate(0, -50%);
  margin-top: -0.9rem;
}

.first-sub:hover .first-text h2 {
  left: 0;
  transform: translate(0, -50%);
  margin-top: -0.9rem;
  margin-left: 0.8rem;
}

.first-sub:hover .first-text .first-p {
  opacity: 1;
  margin-top: -0.3rem;
}

.first-sub .first-bg {
  width: 100%;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
  background: rgba(111, 111, 111, 0.38);
  z-index: 1;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) 0s;
}

.first-sub .first-text,
.first-sub .first-text .first-icon,
.first-sub .first-text h2 {
  top: 50%;
  position: absolute;
  left: 50%;
  transform: translate(-50%, -50%);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) 0s;
}

/* 修改 */
.first-icon1{
  width: 24%;
  float: left;
  margin-right: 1%;
  margin-left: 1%;
}

.first-icon2 {
  width: 24%;
  float: left;
  margin-right: 1%;
}

.first-icon3 {
  width: 49%;
  float: left;
}

.first-icon4{
  width: 49%;
  margin: 15px 1% 0 0;
  float: left;
}

.first-icon7{
  width: 65%;
  margin: 15px 0 0;
  float: left;
}

.first-icon8 {
  width: 65%;
  margin: 15px 1.5% 0 1.5%;
  float: left;
}

.first-icon5{
  width: 24%;
  float: left;
  margin: 15px 0 0;
}

.first-icon10 {
  width: 100%;
  float: left;
  margin: 15px 0 0;
}

.first-icon6 {
  width: 32%;
  float: left;
  margin: 15px 1.5% 0 1.5%;
}

.first-icon9 {
  width: 32%;
  float: left;
  margin: 15px 0 0;
}
.first-sub .first-text {
  width: 80%;
  z-index: 2;
  color: #fff;
}

.first-sub .first-text .first-icon {
  margin-top: -0.3rem;
}

.first-sub .first-text .first-icon i {
  font-size: 0.6rem;
  line-height: 1;
}

.first-sub .first-text .first-icon img {
  display: inline-block;
  max-height: 0.5rem;
  width: auto;
}

.first-sub .first-text h2 {
  font-size: 0.26rem;
  font-weight: 400;
  text-align: center;
  margin-top: 0.3rem;
}

.first-sub .first-text .first-p {
  width: 100%;
  height: 1.6rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) 0s;
  margin-top: 0;
  position: absolute;
  opacity: 0;
}

.first-sub .first-text p {
  font-size: 0.18rem;
  font-size: 0.22rem;
  line-height: 1.6;
  max-height: 1.056rem;
  overflow: hidden;
}

.first-sub .first-text span {
  width: 1.65rem;
  height: 0.48rem;
  line-height: 0.48rem;
  text-align: center;
  border: 0.01rem solid #fff;
  display: block;
  font-size: 0.18rem;
  float: right;
  margin-top: 0.2rem;
  border-radius: 0.48rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) 0s;
}
.first-sub .first-text span:hover {
  background-color: #fff;
  color: #004ea2;
}

.first-sub .first-text span i {
  font-size: 0.2rem;
  margin-left: 0.1rem;
}

.i-solution-box-text {
  position: absolute;
  left: 20%;
  top: 20%;
  color: #ffffff;
}

.i-about-c p {
  color: #656363;
  font-size: 16px;
}

.i-chart .num {
  text-align: center;
  font-size: 60px;
  font-weight: bold;
  color: #013c8a;
  margin: 30px 0;
}
.i-chart-add {
  position: absolute;
  right: 26%;
  top: 10%;
  font-size: 32px;
  color: #013c8a;
}

.i-case-box-item:hover .case-txt {
  display: block;
  height: 100%;
  padding: 30px;
  opacity: 1;
}
.case-img {
  position: relative;
}
.case-img-cover {
  width: 100%;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
  background: rgba(111, 111, 111, 0.38);
  z-index: 1;
}
.case-img-title {
  width: 80%;
  position: absolute;
  top: 36%;
  left: 10%;
  padding: 10px 0;
  border-top: 1px solid #ffffff;
  border-bottom: 1px solid #ffffff;
  text-align: center;
  color: #ffffff;
  font-size: 20px;
  font-weight: bold;
  z-index: 9;
}
.case-txt {
  text-transform: none;
  width: 100%;
  height: 0;
  position: absolute;
  left: 0;
  top: 0;
  background: url("../img/case-bg.png") no-repeat;
  color: #ffffff;
  text-align: center;
  opacity: 0;
  transition: all 0.8s;
  z-index: 99;
}
.case-txt:hover {
  visibility: visible;
  opacity: 1;
  height: 100%;
}
.case-txt .case-title {
  font-size: 20px;
  font-weight: bold;
  padding-bottom: 16px;
  border-bottom: 1px solid #ffffff;
}
.case-txt p {
  font-size: 16px;
  text-align: left;
  padding: 20px 0;
  line-height: 32px;
}
.case-txt a {
  position: absolute;
  bottom: 24px;
  left: 107px;
  color: #ffffff;
  border: 1px solid #ffffff;
  border-radius: 20px;
  padding: 8px 30px;
}

.new-text {
  background-color: #ffffff;
  padding: 10px;
}
.new-text h3 {
  margin-top: 0;
}
.new-text a {
  color: #363636;
  font-size: 18px;
}

.article-case {
  background-image: url("../img/article_case_bg.jpg");
  background-repeat: no-repeat;
  background-color: #f4f4f4;
  padding-bottom: 150px;
}
.article-case-title {
  font-size: 48px;
  font-weight: bold;
  color: #207bda;
  text-align: center;
  margin: 0;
  padding: 80px 0;
}
.article-case-content {
  min-height: 600px;
  padding: 80px 100px 100px;
  background-color: #ffffff;
}