.line-1 {
  background: black;
}

.nav-box {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-box .left-box {
  display: flex;
  justify-content: start;
  align-items: center;
  padding: 0 !important;
  flex: 5;
}

.nav-box .right-box {
  display: flex;
  justify-content: right;
  align-items: center;
  flex: 1;
}

.nav-box .logo {
}

.nav-box .logo img {
  width: 260px;
}

.nav-box .nav {
  flex: 1;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: left;
  align-items: center;
  height: 60px;
}

.nav-box .nav li {
  display: flex;
  align-items: center;
  margin: 0 30px;
  height: 100%;
}

.nav-box .nav a {
  display: block;
  color: white;
}

.nav-box .nav li.active a {
  color: #0b7ec4;
}

.nav-box .nav li.active {
  border-bottom: 3px solid #0b7ec4;
}

.nav-box .login-box {
  display: flex;
  justify-content: start;
  align-items: center;
  padding: 0 20px;
}

.nav-box .login-box .message {
  color: white;
}

.nav-box .button-login {
  color: white;
  background: #0b7ec4;
  width: 100px;
  align-self: stretch;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-box .button-login a {
  color: white;
}

.line-2 {
  background: rgb(44, 94, 207);
}

.line-2 .banner {
  background: url(../images/index3/banner.png) center top no-repeat;
  background-size: auto;
  height: 500px;
}

.line-3 {
  display: flex;
  justify-content: center;
  flex-direction: column;
  background: url(../images/index3/zhengwu-bg.png) center top no-repeat;
  background-size: cover;
  padding: 40px 0;
}

.line-3 h2 {
  display: flex;
  justify-items: center;
  align-content: center;
  font-size: 2em;
  text-align: center;
  color: white;
  margin: 20px 0;
}

.line-3 h2 .line-left {
  background: url(../images/index3/white-line.png) center right no-repeat;
  width: 60px;
  flex: 1;
}

.line-3 h2 .line-right {
  background: url(../images/index3/white-line.png) center left no-repeat;
  width: 60px;
  flex: 1;
}

.line-3 h2 .main {
  padding: 0 50px;
}

.line-3 h3 {
  display: block;
  font-size: 1em;
  color: white;
  text-align: center;
  margin: 0 0 40px 0;
}

.line-3 .card-list {
  margin: 10px 0;
  padding: 0;
  display: flex;
  justify-items: center;
  align-content: space-evenly;
}

.line-3 .card-list .item {
  margin: 10px;
  padding: 0;
  flex: 1;
  display: flex;
  justify-items: center;
  align-content: center;
}

.line-3 .card-list .item .service {
  display: flex;
  flex: 1;
  justify-items: center;
  align-content: center;
  flex-direction: column;
}

.line-3 .card-list .item .service img {
  width: 180px;
  margin: 0 auto -60px auto;
}

.line-3 .card-list .item .service .title {
  display: block;
  color: white;
  margin: 20px auto;
  font-size: 1.2em;
}

.line-3 .card-list .item .desc {
  display: block;
  color: white;
  text-align: center;
  padding: 10px 20px;
}

.line-4 {
  background: white;
}

.line-4 .channel-box {
  background: #f6f6f6;
  padding: 40px 0 0 0;
}

.line-4 .channel-box h2 {
  display: flex;
  justify-items: center;
  align-content: center;
  font-size: 2em;
  text-align: center;
  margin: 0;
}

.line-4 .channel-box h2 .line-left {
  background: url(../images/index3/white-line.png) center right no-repeat;
  width: 60px;
  flex: 1;
}

.line-4 .channel-box h2 .main {
  padding: 0 50px;
}

.line-4 .channel-box h2 .line-right {
  background: url(../images/index3/white-line.png) center left no-repeat;
  width: 60px;
  flex: 1;
}

.line-4 .channel-box h3 {
  display: block;
  font-size: 1em;
  text-align: center;
  margin: 20px 0 40px 0;
}

.line-4 .channel-box .card-list {
  margin: 10px 0 0 0;
  padding: 0;
  display: flex;
  justify-items: center;
  align-content: space-evenly;
}

.line-4 .channel-box .card-list .item {
  margin: 10px 10px 0 10px;
  padding: 0;
  flex: 1;
  display: flex;
  justify-items: center;
  align-content: center;
}

.line-4 .channel-box .card-list .item .service {
  display: flex;
  flex: 1;
  justify-items: center;
  align-content: center;
  flex-direction: column;
  border-bottom: 4px solid #f6f6f6;
  color: black;
}

.line-4 .channel-box .card-list .item .service.active {
  border-bottom: 4px solid #277bf4;
  color: #277bf4;
}

.line-4 .channel-box .card-list .item .service .cover {
  width: 100px;
  display: block;
  margin: 0 auto;
}

.line-4 .channel-box .card-list .item .service .title {
  display: block;
  margin: 10px auto;
  font-size: 1.6em;
  font-weight: bold;
}

.line-4 .service-box {
  background: url(../images/index3/zxt.png) center top no-repeat;
  background-size: auto;
  border-radius: 10px;
  height: 380px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-items: start;
  margin: 40px 0;
  box-shadow: 0 0 10px 0 #ccc;
}

.line-4 .service-box .title {
  font-size: 3em;
  font-weight: bold;
  color: #3b65e6;
  margin: 60px 100px 20px 100px;
}

.line-4 .service-box .desc {
  color: black;
  line-height: 1.2em;
  width: 30em;
  margin: 20px 100px;
}

.line-4 .service-box .link {
  background: url(../images/index3/access.png) left center no-repeat;
  color: white;
  font-size: 24px;
  padding: 5px 30px;
  margin: 20px 100px;
}

.hide {
  display: none;
}