.tab-box {
  margin-bottom: 20px;
}

.tab-box>div {
  width: 1200px;
  margin: 0 auto;
}

.tab-box>div .tab {
  width: 220px;
  height: 70px;
  background: url(../img/tab.png) no-repeat;
  background-size: 100%;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 2px;
  color: #ffffff;
  cursor: pointer;
}

.tab-box>div .tab.active {
  background: url(../img/tab-active.png) no-repeat;
  background-size: 100%;
}

section {
  margin-bottom: 53px;
}

section .content {
  width: 1200px;
  height: auto;
  padding: 34px 25px 40px;
}

section h3 {
  font-size: 30px;
  line-height: 30px;
  color: #142b33;
  margin-bottom: 27px;
}

.offer .offerlist{
  height: 500px;
  overflow: hidden;
  position: relative;
}
.offer .thead {
  height: 60px;
  background-color: #1e414d;
  font-size: 16px;
  font-weight: 700;
  color: #ffffff;
  position: relative;
  z-index: 5;
}

.offer .tr>div:nth-child(1) {
  width: 150px;
}

.offer .tr>div:nth-child(2) {
  width: 240px;
  padding: 0 15px;
}

.offer .tr>div:nth-child(3) {
  width: 240px;
  padding: 0 15px;
}

.offer .tr>div:nth-child(4) {
  width: 300px;
  padding: 0 20px;
}
.offer .loading{
  position: absolute;
  top: 205px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
}
.offer .tbody{
  position: relative;
}
.offer .tbody .tr {
  height: 60px;
  align-items: stretch;
  color: #000000;
  font-size: 14px;
}

.offer .tbody .tr.other {
  background-color: #fff3e6;
}

.offer .tbody .tr .lay {
  width: 200px;
  height: 40px;
  background-color: #ffd39c;
  border-radius: 19px;
  text-align: center;
  line-height: 40px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: all .3s;
}
.offer .tbody .tr .lay:hover{
  background: #f7b666;
  transition: all .3s;
}
.case{
  position: relative;
}
.case h3 {
  margin-bottom: 30px;
}
.case .loading{
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: 260px;
  z-index: 5;
}
.case .content {
  padding: 34px 41px 20px;
}

.caselist {
  flex-wrap: wrap;
  min-height: 340px;
  height: 430px;
  overflow: hidden;
}
.caselist.active{
  height: auto;
}
.caselist li {
  width: 255px;
  height: 340px;
  border: solid 2px #ebebeb;
  margin-right: 30px;
  margin-top: 30px;
  overflow: hidden;
  position: relative;
}

.caselist li:nth-child(1),
.caselist li:nth-child(2),
.caselist li:nth-child(3),
.caselist li:nth-child(4) {
  margin-top: 0;
}

.caselist li:nth-child(4n) {
  margin-right: 0;
}
.caselist li img{
  width: 100%;
}
.case .more {
  flex-direction: column;
  font-size: 18px;
  line-height: 18px;
  color: #999999;
  margin-top: 25px;
  opacity: 0;
}

.case .more img {
  margin-top: 10px;
  width: 23px;
  cursor: pointer;
}
.case .more.active img{
  transform: rotateZ(180deg);
}
.caselist li .blow{
  width: 69px;
  height: 69px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate3d(-50%,-50%,0);
  display: none;
  cursor: pointer;
}
.caselist li:hover .blow{
  display: block;
}
.case .btn-box {
  margin-top: 50px;
}

.case .btn {
  width: 306px;
  height: 66px;
  background: url(../img/btn.png) no-repeat;
  background-size: 100%;
  border-radius: 33px;
  font-size: 20px;
  font-weight: 700;
  color: #000000;
  cursor: pointer;
}

.case .btn:nth-child(2) {
  margin-left: 54px;
}

.intr .content {
  padding: 34px 40px 45px;
}

.intr .txt {
  width: 100%;
  height: 100px;
  background-color: #ffefde;
  font-size: 15px;
  line-height: 30px;
  color: #6e4310;
  flex-direction: column;
  align-items: flex-start;
  padding-left: 21px;
}

.btm-form {
  margin-bottom: 0;
}

.btm-form h3 {
  align-items: baseline;
}

.btm-form h3 span {
  font-size: 18px;
  line-height: 18px;
  font-weight: normal;
  color: #000000;
  margin-left: 34px;
}

.btm-form .content {
  padding: 34px 45px 45px;
}

.btm-form .txt {
  margin-bottom: 22px;
}

.btm-form .txt div {
  width: 96px;
  position: relative;
  margin-right: 84px;
}

.btm-form p {
  font-size: 16px;
  line-height: 24px;
  color: #000000;
  text-align: center;
}

.btm-form .txt span {
  font-family: 'ArialMT';
  font-size: 60px;
  font-weight: 700;
  color: #000000;
  opacity: 0.1;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate3d(-50%, -50%, 0);
}

.btm-form form {
  width: 100%;
  height: 100px;
  background-color: #285765;
  padding-left: 30px;
}

.btm-form .item {
  width: 220px;
  height: 40px;
  background-color: #ffffff;
  margin-right: 15px;
  overflow: hidden;
}

.btm-form input,
.btm-form select {
  width: 100%;
  height: 100%;
  background-color: #ffffff;
  font-size: 14px;
  color: #999999;
  padding-left: 10px;
}

.btm-form input::placeholder {
  color: #999999;
}

.btm-form select {
  background: #ffffff url(../img/form-arrow.png) no-repeat;
  background-size: 5%;
  background-position: 96% center;
}

.btm-form .btn {
  width: 117px;
  height: 40px;
  background-color: #ffd39c;
  border-radius: 20px;
  font-size: 16px;
  font-weight: 700;
  color: #000000;
}

/* layout */
.layout {
  width: 100%;
  height: 100%;
  position: fixed;
  top: 0;
  left: 0;
  background: rgba(0, 0, 0, 0.4);
  display: none;
  z-index: 10;
}

.layout>div {
  width: 510px;
  height: 341px;
  background: url(../img/layout.png) no-repeat;
  background-size: 100%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate3d(-50%, -50%, 0);
  padding: 170px 30px 0;
}

.layout .close {
  width: 35px;
  height: 35px;
  position: absolute;
  top: 0;
  right: 0;
  cursor: pointer;
}

.layout .close img {
  width: 100%;
}

.layout form {
  flex-wrap: wrap;
}

.layout .item {
  width: 220px;
  height: 40px;
  background-color: #ffffff;
  box-shadow: 3px 4px 30px 0px rgba(110, 110, 110, 0.35);
  overflow: hidden;
}

.layout input,
.layout select {
  width: 100%;
  height: 100%;
  font-size: 14px;
  color: #999999;
}

.layout::placeholder {
  color: #999999;
}

.layout .item {
  margin-bottom: 8px;
}

.layout input,
.layout select {
  padding-left: 10px;
}

.layout select {
  background: #ffffff url(../img/form-arrow.png) no-repeat;
  background-size: 5%;
  background-position: 96% center;
}

.layout .btn {
  width: 200px;
  height: 50px;
  line-height: 50px;
  font-size: 20px;
  font-weight: 700;
  color: #ffffff;
  margin: 10px auto 0;
}

.layout-show {
  width: 100%;
  height: 100%;
  position: fixed;
  top: 0;
  left: 0;
  background: rgba(0, 0, 0, .3);
  display: none;
  z-index: 31;
}
.layout-show .img {
  width: auto;
  height: 95%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate3d(-50%, -50%, 0);
}

.layout-show .img img {
  height: 100%;
}

.layout-show .img .close {
  position: absolute;
  width: 40px;
  height: 40px;
  top: 0;
  right: -100px;
  cursor: pointer;
}