.container {
  width: 1200px;
  margin: 0 auto;
}
.top-banner {
  width: 100%;
  min-width: 1200px;
  height: 660px;
  background: url("../imgs/banner.png") center no-repeat;
  /* background-size: auto 100%; */
}
.top-banner .top-nav {
  display: flex;
  justify-content: space-between;
  padding: 20px 0;
  box-sizing: border-box;
}
.right-nav{
 display: flex;
}
.right-nav .nav-item a{
 padding: 4px 10px;
 font-size: 14px;
 color: #fff;
 margin-right: 24px;
 cursor: pointer;
 text-decoration: none;
}
.right-nav .nav-item:hover a {
  color: #00C6CA;
  text-decoration: solid;
}
.right-nav .nav-item:last-child {
  margin-right: 0;
}

.top-index {
  width: 850px;
  height: 500px;
  padding-top: 100px;
  box-sizing: border-box;
  position: relative;
  left: 50%;
  transform: translateX(-50%);
}
.top-index .logo-img {
  width: 320px;
   position: relative;
  left: 50%;
  transform: translateX(-50%);
}
.top-index .logo-text {
  font-size: 30px;
  color: #F4F3FF;
  text-align: center;
  margin-top: 30px;
}
.top-index .down-btn {
  width: 300px;
  height: 100px;
  margin-top: 80px;
  cursor: pointer;
  background: url("../imgs/banner_btn_default.png") no-repeat;
  background-size: 100%;
   position: relative;
  left: 50%;
  transform: translateX(-50%);
}
.top-index .down-btn:hover {
    background: url("../imgs/banner_btn_hover.png") no-repeat;
    background-size: 100%;
}
.top-index .down-btn:active {
    background: url("../imgs/banner_btn_active.png") no-repeat;
    background-size: 100%;
}

/* 产品介绍 */
.product-info {
  width: 100%;
  min-width: 1200px;
}
.info-one {
    height: 650px;
    padding: 80px 0;
    box-sizing: border-box;
}
.info-one .info-title {
  color: #343538;
  font-size: 32px;
  font-weight: bold;
  text-align: center;
}
.info-one .info-text {
  font-size: 16px;
  color: #343538;
  margin-top: 12px;
  text-align: center;
}
.info-one .info-list {
  display: flex;
  justify-content: space-between;
  margin-top: 74px;
}
.info-one .info-list .info-item .item-img{
  width: 330px;
}
.info-one .info-list .info-item .item-title{
  font-size: 22px;
  color: #343538;
  font-weight: bold;
  text-align: center;
  margin: 14px 0 6px 0;
}
.info-one .info-list .info-item .item-des{
  font-size: 12px;
  color: #343538;
  text-align: center;
}

.info-two {
   width: 100%;
  min-width: 1200px;
  height: 600px;
  box-sizing: border-box;
  background: url("../imgs/bg_1.png") center no-repeat;
  background-size: auto 100% ;
}
.info-two .container{
    display: flex;
  justify-content: space-between;
    padding: 94px 0;

}
.left-img {
  width: 52%;
}
.right-desc  {
  margin: 70px 0;
}
.right-desc .right-title{
 font-size: 30px;
  color: #343538;
  font-weight: bold;
  margin-bottom: 18px;
}
.right-desc .right-text{
 font-size: 16px;
  color: #343538;
  text-align: left;
  line-height: 28px;
}
/* 底部 */
.download-area {
  width: 100%;
  min-width: 1200px;
  height: 810px;
  padding: 60px 0 20px 0;
  box-sizing: border-box;
}
.download-area .container .footer-logo{
  width: 300px;
  position: relative;
  left: 50%;
  transform: translateX(-50%);
}
.download-area .container  .download-btn{
 width: 360px;
  height: 120px;
  margin-top: 70px;
  cursor: pointer;
  background: url("../imgs/f_btn_default.png") no-repeat;
  background-size: 100%;
   position: relative;
  left: 50%;
  transform: translateX(-50%);
}
.download-area .container  .download-btn:hover {
    background: url("../imgs/f_btn_hover.png") no-repeat;
    background-size: 100%;
}
.download-area .container  .download-btn:active {
    background: url("../imgs/f_btn_active.png") no-repeat;
    background-size: 100%;
}
.copyright {
  color:#666666;
  font-size: 12px;
  line-height: 24px;
  text-align: center;
  margin-top: 160px;
}