.tw-big-title {
  font-size: 28px;
  color: #252d40;
  text-align: center;
}
.tw-line1 {
  background-color: #c4c4c4;
  width: 114px;
  height: 1px;
  display: inline-block;
  position: relative;
  margin-right: 20px;
}

.tw-line2 {
  background-color: #c4c4c4;
  width: 114px;
  height: 1px;
  display: inline-block;
  position: relative;
  margin-left: 20px;
}

.tw-line1::before {
  content: "";
  width: 6px;
  height: 6px;
  position: absolute;
  right: -6px;
  top: -2.5px;
  border-radius: 50%;
  border: 1px solid #c4c4c4;
}
.tw-line2::before {
  content: "";
  width: 6px;
  height: 6px;
  position: absolute;
  left: -6px;
  top: -2.5px;
  border-radius: 50%;
  border: 1px solid #c4c4c4;
}
.tw-tab {
  display: flex;
  justify-content: space-between;
  margin-bottom: 32px;
  border-bottom: 1px solid #ecf0f3;
  height: 44px;
  width: 100%;
  font-size: 20px;
}
.tw-tabl {
  float: left;
  margin-right: 25px;
  color: #333;
  cursor: pointer;
}
.tab-active {
  padding-bottom: 11px;
  border-bottom: 2px solid #f19240;
  color: #f19240;
}
.tw-news-item {
  width: 31%;
  height: 390px;
  box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.1);
  margin-right: 66px !important;
  margin-left: 0px;
  margin-bottom: 44px;
  overflow: hidden;
}

.tw-news-item:nth-child(3n + 3) {
  margin-right: 0 !important;
}
.tw-container {
  width: 1280px;
  margin: 0 auto;
}
.img-change-big {
  width: 100%;
  height: 260px;
  display: inline-block;
}
.img-change-big:hover {
  transform: scale(1.1);
}
.dis-none {
  display: none;
}
.fa-angle-left:before {
  color: #606266;
}
.fa-angle-right:before {
  color: #606266;
}