body {}

.layout {
  background: url(./images/bg.jpg) repeat-y center top;
  background-size: 100% auto;
}

.container {
  width: 1200px;
  margin: auto;
  position: relative;
}

.header {
  background: url(./images/header.png) no-repeat center top;
  background-size: 100% 680px;
}

.header .container {
  padding-top: 120px;
}

.header .logos {
  display: block;
  width: 136px;
  height: 80px;
  position: absolute;
  left: 0;
  top: 0;
}

.header .app {
  padding: 0 0 146px;
}

.header .app .logo {
  display: block;
  width: 220px;
  height: 170px;
  margin: auto;
}

.header .app .title {
  display: block;
  margin: 24px auto 0;
  width: 840px;
  height: 86px;
}

.header .app .desc {
  font-size: 24px;
  line-height: 34px;
  text-align: center;
  color: rgba(0, 0, 0, 0.65);
  margin-top: 16px;
}

.header .app .btn {
  display: block;
  width: 180px;
  height: 56px;
  line-height: 56px;
  border-radius: 28px;
  background: linear-gradient(106deg, #FF8000 12%, #FF2A2A 100%);
  font-size: 20px;
  font-weight: 600;
  text-align: center;
  color: #FFFFFF;
  margin: 28px auto 0;
  position: relative;
}

.header .app .btn .ercode2 {
  width: 180px;
  height: 200px;
  border-radius: 24px;
  background: #FFFFFF;
  box-shadow: 0px 4px 20px 0px rgba(0, 0, 0, 0.05);
  padding: 24px 24px 12px;
  box-sizing: border-box;
  position: absolute;
  left: 50%;
  top: 72px;
  margin-left: -90px;
  z-index: 2;
  display: none;
}

.header .app .btn:hover .ercode2 {
  display: block;
}

.header .app .btn .ercode2 img {
  display: block;
  width: 132px;
}

.header .app .btn .ercode2 p {
  margin-top: 12px;
  font-size: 14px;
  line-height: 20px;
  font-weight: normal;
  color: rgba(0, 0, 0, 0.75);
}

.main {}

.main .desc-item {
  width: 1200px;
  margin-top: 160px;
  position: relative;
  overflow: hidden;
}

.main .desc-item:nth-child(1) {
  margin-top: 0;
}

.main .desc-item>img {
  display: block;
  width: 612px;
}

.main .desc-item .content {
  width: 486px;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  -webkit-transform: translateY(-50%);
}

.main .desc-item .content .title {
  font-size: 40px;
  font-weight: 600;
  line-height: 56px;
  color: #000000;
}

.main .desc-item .content .desc {
  font-size: 20px;
  line-height: 36px;
  color: rgba(0, 0, 0, 0.75);
  margin-top: 100px;
}

.main .desc-item .content::before {
  content: "";
  display: block;
  position: absolute;
  left: 0px;
  top: 96px;
  width: 4px;
  height: 20px;
  border-radius: 2px;
  background: #FF8000;
}

.main .desc-item.s1>img {
  float: right;
}

.main .desc-item.s2>img {
  float: left;
}

.main .desc-item.s1 .content {
  left: 0;
}

.main .desc-item.s2 .content {
  right: 0;
}

.main .descs .desc-item:nth-last-child(1) {
  margin-top: 120px;
}

.main .comments {
  padding-top: 120px;
  padding-bottom: 122px;
}

.main .comments .title {
  font-size: 40px;
  font-weight: 600;
  line-height: 56px;
  text-align: center;
  color: #000000;
}

.main .comments ul {
  margin-top: 56px;
}

.main .comments ul::after {
  content: "";
  height: 0;
  clear: both;
  display: block;
}

.main .comments ul li {
  float: left;
  margin-right: 24px;
  width: 384px;
  height: 266px;
  border-radius: 24px;
  box-shadow: 0px 10px 30px 0px rgba(0, 60, 64, 0.03);
  background: #FFFFFF;
  position: relative;
  padding-top: 78px;
  box-sizing: border-box;
}

.main .comments ul li:nth-last-child(1) {
  margin-right: 0;
}

.main .comments ul li::before {
  content: "";
  display: block;
  width: 30px;
  height: 22px;
  background: url(./images/syh.png) no-repeat center/cover;
  position: absolute;
  top: 32px;
  left: 32px;
}

.main .comments ul li .desc {
  width: 320px;
  font-size: 14px;
  line-height: 24px;
  text-align: justify;
  /* 浏览器可能不支持 */
  color: rgba(0, 0, 0, 0.85);
  margin: auto;
}

.main .comments ul li .u {
  width: 146px;
  height: 52px;
  position: absolute;
  left: 32px;
  top: 182px;
}

.main .comments ul li .u .icon {
  display: block;
  width: 52px;
  height: 52px;
}

.main .comments ul li .u .name {
  position: absolute;
  left: 70px;
  top: 4px;

  font-size: 14px;
  font-weight: 600;
  line-height: 20px;
  color: rgba(0, 0, 0, 0.85);
}

.main .comments ul li .u .star {
  position: absolute;
  left: 70px;
  top: 28px;

  display: block;
  width: 76px;
  height: 20px;
}

.main .ercode {
  padding-bottom: 39px;
}

.main .ercode img {

  width: 180px;
  height: 180px;
  display: block;
  margin: auto;
}

.main .ercode p {
  margin-top: 16px;
  line-height: 20px;
  font-size: 14px;
  text-align: center;
  color: rgba(0, 0, 0, 0.65);
}

.footer {
  padding: 50px 0;
  font-size: 12px;
  line-height: 20px;
  text-align: center;
  color: rgba(0, 0, 0, 0.5);
}

.footer p {
  display: inline;
  margin-right: 40px;
}

.footer p:nth-last-child(1) {
  margin-right: 0;
}

#totop {
  display: block;
  width: 108px;
  height: 108px;
  background: url(./images/totop.png) no-repeat center/cover;
  position: fixed;
  right: 40px;
  bottom: -200px;
  transition: all 0.25s;
  cursor: pointer;
}

#totop:hover {
  background-image: url(./images/totop2.png);
}

#totop.active {
  bottom: 160px;
}