.list-loading {
  display: none;
  position: absolute;
  top: 30%;
  left: 50%;
  width: 100px;
  height: 26px;
  margin-left: -50px;
  background-image: url('../../index_province/img/loading.gif');
  background-color: #fff;
  background-size: 100px 26px;
  background-repeat: no-repeat;
}
.loading .list-loading {
  display: block;
}
.main-content {
  position: relative;
  width: 1200px;
  margin: 0 auto 20px;
  min-height: 600px;
}
.main-content .part-title {
  line-height: 100px;
  color: #4772A0;
  font-size: 26px;
  font-weight: bold;
  margin: 0;
  text-align: center;
}
.main-content .tab-wrapper {
  position: relative;
  font-size: 0;
  box-sizing: border-box;
  overflow: hidden;
}
.main-content .tab-wrapper .icon.collapse {
  display: none;
}
.main-content .tab-wrapper .icon.spread {
  display: inline-block;
}
.main-content .tab-wrapper.collapse {
  height: 42px;
}
.main-content .tab-wrapper.collapse .icon.collapse {
  display: inline-block;
}
.main-content .tab-wrapper.collapse .icon.spread {
  display: none;
}
.main-content .tab-wrapper .icon {
  position: absolute;
  top: 13px;
  right: 0;
  width: 20px;
  height: 20px;
  font-size: 16px;
  font-family: cmsicon;
  color: #4772A0;
  cursor: pointer;
}
.main-content .tab-wrapper .tab-item {
  width: 170px;
  color: #666;
  height: 42px;
  line-height: 40px;
  display: inline-block;
  font-size: 16px;
  border-bottom: 1px solid #E2E2E2;
  box-sizing: border-box;
  padding-right: 50px;
}
.main-content .tab-wrapper .tab-item .tab-text {
  max-width: 120px;
  float: left;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  cursor: pointer;
}
.main-content .tab-wrapper .tab-item .tab-text:hover {
  color: #4772A0;
}
.main-content .tab-wrapper .tab-item.active .tab-text {
  border-bottom: 2px solid #4772A0;
  font-weight: 700;
  color: #333;
}
.main-content .letter-wrapper {
  position: relative;
  height: 380px;
  font-size: 0;
}
.main-content .letter-wrapper.loading:before {
  content: '';
  position: absolute;
  top: 40%;
  left: 50%;
  width: 100px;
  height: 26px;
  margin-left: -50px;
  background-image: url('../../index_province/img/loading.gif');
  background-color: #fff;
  background-size: 100px 26px;
  background-repeat: no-repeat;
}
.main-content .letter-wrapper .letter-list {
  height: 320px;
}
.main-content .letter-wrapper .letter-list .letter-line-wrapper {
  height: 160px;
}
.main-content .letter-wrapper .letter-list .letter-line-wrapper:first-child + .letter-line-wrapper {
  border-top: 1px solid #E2E2E2;
}
.main-content .letter-wrapper .letter-list .letter-item {
  position: relative;
  width: 50%;
  height: 160px;
  float: left;
  box-sizing: border-box;
  padding-top: 20px;
  padding-left: 40px;
  cursor: pointer;
  text-decoration: none;
}
.main-content .letter-wrapper .letter-list .letter-item:first-child {
  padding-left: 0;
  padding-right: 40px;
}
.main-content .letter-wrapper .letter-list .letter-item:first-child + .letter-item:before {
  position: absolute;
  left: 0;
  top: 30px;
  content: '';
  width: 1px;
  height: 100px;
  background-color: #E2E2E2;
  display: inline-block;
}
.main-content .letter-wrapper .letter-list .letter-item .letter-title {
  height: 40px;
  line-height: 40px;
  font-size: 18px;
  font-weight: bold;
  color: #333;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.main-content .letter-wrapper .letter-list .letter-item .letter-content {
  height: 72px;
  line-height: 24px;
  font-size: 14px;
  color: #666;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  overflow: hidden;
}
.main-content .letter-wrapper .letter-list .letter-item .letter-content p {
  margin: 0;
}
.main-content .letter-wrapper .empty-tip {
  font-size: 16px;
  line-height: 285px;
  text-align: center;
  color: #666;
}
.main-content .letter-wrapper .more-wrapper {
  height: 60px;
}
.main-content .letter-wrapper .more-wrapper .btn-more {
  width: 150px;
  display: block;
  height: 30px;
  color: #4772A0;
  line-height: 28px;
  font-size: 14px;
  text-align: center;
  border-radius: 20px;
  box-sizing: border-box;
  border: 1px solid #4772A0;
  margin: 0 auto;
  cursor: pointer;
}