.center-box {
  overflow-y: auto;
}
.t-bg {
  width: 100%;
  height: 809px;
  background-image: url(../img/c0-bg.png);
  background-repeat: no-repeat;
  background-size: cover;
  display: flex;
  justify-content: center;
  position: relative;
  padding-top: 260px;
}
.t-bg .left {
  margin-right: 46px;
  font-size: 20px;
  color: #000;
}
.left {
  width: 384px;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.l-logo {
  width: 120px;
  height: 120px;
  margin-top: 27px;
}
.logo-text {
  width: 375px;
  height: 56px;
  margin: 52px auto 28px;
}
.l-t-b {
  width: 100%;
  display: flex;
  justify-content: space-between;
  font-weight: 700;
}
.t-img {
  width: 725px;
  height: 460px;
}
.btn {
  margin-top: 70px;
  width: 210px;
  height: 55px;
  background-image: url(../img/btn.png);
  background-repeat: no-repeat;
  background-size: cover;
  cursor: pointer;
}
.btn:hover {
  background-image: url(../img/btn-h.png);
}

.c1-bg {
  height: 869px;
  background-image: url(../img/c1-bg.png);
  background-repeat: no-repeat;
  background-size: cover;
  padding-top: 30px;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.c1-bg img {
  width: 472px;
  height: 97px;
}

.list-box {
  width: 1200px;
  margin: 75px 0 38px;
}
.list {
  display: flex;
}
.item {
  width: 130px;
  height: 50px;
  line-height: 50px;
  cursor: pointer;
  margin-right: 16px;
  font-size: 20px;
  font-weight: 700;
  color: #000;
  display: flex;
  justify-content: center;
  background: rgba(16,221,128,0.1);
  border-radius: 8px;
}
.item:hover {
  background: rgba(16,221,128,0.3);
}
.item.active {
  color: #fff;
  background: linear-gradient( 180deg, #11DF7F 0%, #07CA82 99%);
  box-shadow: inset 0px -1px 1px 0px rgba(120,249,125,0.5);
}
.item:last-child {
  margin-right: 0;
}
.item .nav {
  width: 18px;
  height: 18px;
  margin: 16px 10px 0 0;
  background-repeat: no-repeat;
  background-size: cover;
}
.nav0 {
  background-image: url(../img/down-0.png);
}
.active .nav0 {
  background-image: url(../img/down-0-h.png);
}
.nav1 {
  background-image: url(../img/down-1.png);
}
.active .nav1 {
  background-image: url(../img/down-1-h.png);
}
.nav2 {
  background-image: url(../img/down-2.png);
}
.active .nav2 {
  background-image: url(../img/down-2-h.png);
}
.nav3 {
  background-image: url(../img/down-3.png);
}
.active .nav3 {
  background-image: url(../img/down-3-h.png);
}

.c1-bg .img {
  width: 1200px;
  height: 478px;
}

.c2-bg {
  height: 811px;
  background-image: url(../img/c2-bg.png);
  background-repeat: no-repeat;
  background-size: cover;
  padding-top: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.c2-title {
  font-weight: 700;
  font-size: 50px;
  color: #000;
}
.c2-l-title {
  font-size: 18px;
  color: #000;
  margin: 20px 0 0;
}
.c2-list {
  margin: 20px auto 48px;
  display: flex;
}
.c2-list .item {
  font-size: 14px;
  font-weight: 400;
  color: #FFFFFF;
  background: #11AA42;
  border-radius: 4px 4px 4px 4px;
  height: 43px;
  width: auto;
  line-height: 43px;
  padding: 0 15px;
  cursor: default;
}
.c2-bg img {
  width: 812px;
  height: 515px;
}
.bottom .beian {
  cursor: pointer;
}
.bottom img {
  height: 16px;
  width: 16px;
  vertical-align: sub;
}