img {
  width: 100%;
  height: 100%;
}

.head_box .site-header {
  box-shadow: none;
}

.content .future {
  color: #fff;
  background: linear-gradient(0deg, #283749 0%, #181c2e 100%);
  display: flex;
  justify-content: center;
  align-items: center;
}

.content .future .center {
  max-width: 1100px;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  margin-top: 130px;
  margin-bottom: 128px;
}

.content .future .center .iterative {
  font-size: 48px;
  font-weight: 700;
  color: #ffffff;
  line-height: 44px;
  z-index: 99;
  position: relative;
  width: 100%;
  text-align: left;
}

.content .future .center .iterative p {
  font-size: 36px;
  color: #2b3444;
  z-index: -9;
  position: absolute;
  top: 34px;
  left: 0;
  right: 0;
}

.content .future .center .lists {
  display: flex;
  justify-content: space-around;
  margin-top: 95px;
  width: 100%;
}

.content .future .center .lists .listLeft {
  min-width: 450px;
}

.content .future .center .lists .listLeft .tip {
  margin-top: 15px;
  margin-bottom: 15px;
}

.content .future .center .lists .listLeft .tip i {
  display: inline-block;
  width: 0;
  height: 0;
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
  border-left: 6px solid #1c76fd;
  border-right: 6px solid transparent;
  vertical-align: middle;
}

.content .future .center .lists .img {
  flex: 1;
}

.content .number {
  display: flex;
  justify-content: center;
  align-items: center;
  background: linear-gradient(0deg, #283749 0%, #181c2e 100%);
}

.content .number .center {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  padding-bottom: 145px;
}

.content .number .center .twins {
  margin-top: 154px;
  margin-bottom: 75px;
  font-size: 48px;
  font-weight: 700;
  color: #ffffff;
  line-height: 78px;
  position: relative;
  z-index: 99;
}

.content .number .center .twins .vice {
  font-size: 36px;
  color: #2b3444;
  position: absolute;
  top: 35px;
  left: 20px;
  z-index: -9;
}

.content .matrix {
  background: linear-gradient(180deg, #f4f7fb 0%, #e6eff9 100%);
  display: flex;
  justify-content: center;
  align-items: center;
}

.content .matrix .center {
  max-width: 1100px;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  padding-top: 146px;
  padding-bottom: 198px;
}

.content .matrix .center h1 {
  font-size: 54px;
  font-weight: 700;
  color: #1a1a1a;
}

.content .matrix .center .describe {
  font-size: 18px;
  font-weight: 400;
  color: #61646d;
  margin-top: 29px;
  margin-bottom: 95px;
}

.content .matrix .center .list ul {
  display: flex;
  justify-content: center;
  align-items: center;
}

.content .matrix .center .list ul .item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin: 0 40px;
}

.content .matrix .center .list ul .item p:nth-child(1) {
  font-size: 24px;
  font-weight: 400;
  color: #1a1a1a;
  margin-top: 34px;
  margin-bottom: 25px;
}

.content .matrix .center .list ul .item p:nth-child(2),
.content .matrix .center .list ul .item p:nth-child(3) {
  font-size: 18px;
  font-weight: 400;
  color: #61646d;
  line-height: 30px;
}

.content .definition {
  width: 100%;
  height: 980px;
  background: url("../images/explore/bg.png") no-repeat center center;
  background-size: cover;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.content .definition .center {
  display: flex;
  position: absolute;
  max-width: 1100px;
  bottom: 130px;
}