.pc-index-banner {
  width: 100%;
  height: 959px;
  background-position: center;
  background-repeat: no-repeat;
  background-image: url("../images/bg58.png");
  position: relative;
}

.pc-index-banner .pc-banner-wrap {
  letter-spacing: 2px;
}

.mouse-box {
  position: absolute;
  left: 50%;
  -webkit-transform: translateX(-50%);
          transform: translateX(-50%);
  bottom: 20%;
  display: block;
  z-index: 5;
  width: 26px;
  height: 38px;
}

.mouse-box .mouse-1 {
  position: absolute;
  left: 50%;
  -webkit-transform: translateX(-50%);
          transform: translateX(-50%);
  width: 26px;
  height: 38px;
}

.mouse-box .mouse-1 img {
  width: 26px;
  height: 38px;
}

.mouse-box .mouse-1 img:nth-child(2) {
  position: absolute;
  left: 50%;
  -webkit-transform: translateX(-50%);
          transform: translateX(-50%);
  top: 0;
}

.mouse-box .mouse-1 img:nth-child(2) {
  -webkit-animation: mymove-mouse 1s infinite;
          animation: mymove-mouse 1s infinite;
}

@-webkit-keyframes mymove-mouse {
  0% {
    top: 0px;
  }
  50% {
    top: 4px;
  }
  100% {
    top: 0px;
  }
}

@keyframes mymove-mouse {
  0% {
    top: 0px;
  }
  50% {
    top: 4px;
  }
  100% {
    top: 0px;
  }
}

.intro-index {
  width: 1300px;
  margin: 0 auto;
  height: 350px;
  padding: 100px 0 100px;
}

.intro-index .it-box {
  float: left;
  width: 470px;
}

.intro-index .it-box .it-t {
  font-size: 35px;
  font-weight: 700;
  line-height: 50px;
  padding-top: 10px;
  padding-bottom: 30px;
  color: #000;
}

.intro-index .it-box .it-l {
  width: 140px;
  height: 6px;
  background: -webkit-gradient(linear, left top, right top, from(#016cff), to(#24d1ff));
  background: -webkit-linear-gradient(left, #016cff 0%, #24d1ff 100%);
  background: linear-gradient(90deg, #016cff 0%, #24d1ff 100%);
  margin-bottom: 50px;
}

.intro-index .it-box .it-p {
  color: #666;
  font-size: 20px;
  font-style: normal;
  font-weight: 400;
  line-height: 40px;
  text-align: justify;
}

.intro-index .it-img {
  float: right;
  width: 650px;
  height: 350px;
  display: block;
}