.main-color {
  color: #392f70;
}
.w1200 {
  width: 1200px;
  margin: auto;
}
.w1400 {
  width: 1440px;
  margin: auto;
}
.w1600 {
  width: 1600px;
  margin: auto;
}
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: normal;
  font-size: 16px;
}
.icon {
  font-family: "iconfont" !important;
  font-size: 16px;
  font-style: normal;
  -webkit-font-smoothing: antialiased;
  -webkit-text-stroke-width: 0.2px;
  -moz-osx-font-smoothing: grayscale;
}
.bg-f5 {
  background-color: #f5f5f5;
}
.color-f {
  color: #fff;
}
.color-9 {
  color: #999;
}
.color-8 {
  color: #81868e;
}
.color-3 {
  color: #333;
}
.color-4 {
  color: #4e4b49;
}
.color-6 {
  color: #666;
}
.color-b {
  color: #bfbfbf;
}


.index-section4 .content {
  background: url(../image/index-section4-bg.png);
  background-size: cover;
  background-position: right center;
}
.index-section4 ol {
  display: flex;
  justify-content: space-between;
}
.index-section4 ol li {
  width: 15%;
  margin: 0 1px;
  height: 518px;
  position: relative;
  overflow: hidden;
  transition: 0.5s;
  border-radius: 4px;
}
.index-section4 ol li h4 {
  position: absolute;
  left: 0;
  right: 0;
  height: 100%;
  transition: 0.5s;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  bottom: 0;
  background-color: rgba(35, 78, 163, 0.8);
  z-index: 1;
  padding: 3%;
}
.index-section4 ol li.on {
  width: 40%;
}
.index-section4 ol li.on h4 {
  height: 20%;
  background-color: rgba(0, 0, 0, 0);
  background-image: linear-gradient(to bottom, rgba(35, 78, 163, 0), rgba(35, 78, 163, 0.4), rgba(35, 78, 163, 0.6), rgba(35, 78, 163, 0.7), rgba(35, 78, 163, 0.8), rgba(35, 78, 163, 0.8));
}
.index-section4 .more {
  margin: auto;
  width: 180px;
  height: 40px;
  border: 1px #392f70 solid;
  padding: 0 12px;
  transition: 0.5s;
}
.index-section4 .more:hover {
  background-color: #392f70;
  color: #fff;
}
.index-section4 .more:hover .icon {
  color: #fff;
}
.index-section4 .section4-container .swiper-slide {
  padding-top: 60%;
  position: relative;
}
.index-section4 .section4-container .swiper-slide h4 {
  position: absolute;
  left: 0;
  right: 0;
  height: 20%;
  transition: 0.5s;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  bottom: 0;
  background-image: linear-gradient(to bottom, rgba(57, 47, 112, 0), rgba(57, 47, 112, 0.4), rgba(57, 47, 112, 0.6), rgba(57, 47, 112, 0.7), rgba(57, 47, 112, 0.8), rgba(57, 47, 112, 0.8));
  z-index: 1;
  padding: 3%;
}
.pro-son-catname ul li a:hover,
.pro-son-catname ul li a.active {
  color: #392f70;
}