* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body,
html {
  width: 100%;
}
@font-face {
  font-family: Avenir;
  src: url('../images/Avenir.ttc');
}
img {
  display: block;
}
.en {
  display: block;
}
.chs {
  display: none;
}
.center {
  max-width: 1300px;
  width: 100%;
  margin: 0 auto;
  position: relative;
  padding: 0 20px;
}
.header {
  width: 100%;
  position: relative;
}
.header .center {
  position: relative;
  z-index: 10;
}
.header .nav {
  height: 110px;
  position: absolute;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.header .nav .sel-box {
  cursor: pointer;
}
.header .nav .logo {
  width: 240px;
}
.header .nav .language {
  color: #fff;
  padding-left: 10px;
}
.header .sel-box {
  display: flex;
}
.header .sel-wraper {
  width: 90px;
  height: 115px;
  background-color: #fff;
  position: absolute;
  right: 0px;
  top: 88px;
  padding: 5px 0;
  display: none;
}
.header .sel-wraper .sel-item {
  padding-left: 17px;
  line-height: 50px;
  color: #292929;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 5px;
  cursor: pointer;
}
.header img.pic {
  margin: 0 auto;
  width: 100%;
  display: block;
}
.banner {
  position: relative;
  margin: 0 auto;
}
.banner .download {
  position: absolute;
  display: block;
  width: 400px;
  height: 400px;
  left: 6%;
  top: 66%;
  z-index: 20;
}
.section-1 {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
}
.section-1 h3 {
  margin-top: 80px;
  margin-bottom: 60px;
  font-size: 36px;
  text-align: center;
  font-weight: bold;
}
.section-1 h3.en {
  font-family: Avenir;
}
.section-1 .section-box-1 {
  display: flex;
  flex-shrink: 1;
  flex-wrap: wrap;
  justify-content: space-between;
  margin: 0 auto;
}
.section-1 .section-box-1 .section-item {
  max-width: 297.5px;
  flex-shrink: 1;
  flex: 1;
  max-height: 519px;
  margin-right: 24px;
  position: relative;
  min-width: 100px;
}
.section-1 .section-box-1 .section-item img {
  width: 100%;
  max-height: 519px;
}
.section-1 .section-box-1 .section-item:last-of-type {
  margin-right: 0;
}
.section-1 .section-box-1 .text-box {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.section-1 .section-box-1 .text-box p {
  color: #fff;
  font-size: 24px;
  font-weight: bold;
  text-align: center;
}
.section-1 .section-box-1 .text-box p.en {
  font-family: Avenir;
}
.section-2 {
  background-image: url(../images/pic_global.png);
  max-height: 560px;
  margin: 100px auto;
  padding-top: 50px;
  width: 100%;
}
.section-2 h3 {
  font-size: 36px;
  text-align: center;
  font-weight: bold;
}
.section-2 h3.en {
  font-family: Avenir;
}
.section-2 .section-box-2 {
  position: relative;
  margin-top: 75px;
  display: flex;
  justify-content: center;
}
.section-2 .section-box-2 .section-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-right: 144px;
  max-width: 216px;
  height: 300px;
}
.section-2 .section-box-2 .section-item h3,
.section-2 .section-box-2 .section-item p {
  text-align: center;
}
.section-2 .section-box-2 .section-item:last-of-type {
  margin-right: 0;
}
.section-2 .section-box-2 .section-item img {
  margin-bottom: 20px;
}
.section-2 .section-box-2 .section-item .high-txt {
  font-weight: bold;
  font-size: 32px;
}
.section-2 .section-box-2 .section-item .high-txt.en {
  font-family: Avenir;
}
.section-2 .section-box-2 .section-item p {
  font-weight: 275;
  font-size: 24px;
  margin-bottom: 20px;
}
.section-3 {
  display: flex;
  justify-content: center;
}
.section-3 .section-item {
  position: relative;
  font-weight: 400;
  font-size: 22px;
  letter-spacing: 0.04em;
  color: #2E2E2F;
  text-decoration: none;
  width: 190px;
  text-align: center;
}
.section-3 .section-item::after {
  content: '';
  position: absolute;
  width: 1px;
  background: #9b3043;
  height: 17px;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
}
.section-3 .section-item.last:after {
  content: '';
  position: absolute;
  width: 1px;
  background: transparent;
  height: 17px;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
}
.section-3 .section-item.en {
  font-family: Avenir;
}
footer {
  text-align: center;
  color: #AFAFAF;
  font-size: 22px;
  font-family: Avenir;
  margin-top: 25px;
  margin-bottom: 50px;
}
@media screen and (max-width: 1300px) {
  .header .nav {
    width: calc(100% - 40px);
  }
}
@media screen and (max-width: 778px) {
  .section-2 .section-box-2 .section-item {
    margin-right: 20px;
  }
}
@media screen and (max-width: 520px) {
  .header .nav {
    height: 60px;
  }
  .header .nav .sel-wraper {
    top: 50px;
  }
  .header .nav .logo {
    width: 160px;
  }
  .section-1 .section-box-1 .section-item {
    max-width: 220px;
    flex: auto;
    margin-bottom: 20px;
    margin-right: 0;
  }
}
@media screen and (max-width: 440px) {
  .header .nav {
    height: 60px;
  }
  .header .nav .sel-wraper {
    top: 50px;
  }
  .header .nav .logo {
    width: 160px;
  }
  .section-1 h3 {
    font-size: 24px;
    margin-top: 40px;
    margin-bottom: 40px;
  }
  .section-1 .section-box-1 .text-box p {
    font-size: 20px;
    padding: 0 20px;
  }
  .section-1 .section-box-1 .section-item {
    max-width: 160px;
    flex: auto;
    margin-bottom: 20px;
    margin-right: 0;
  }
  .section-2 {
    margin: 40px auto;
  }
  .section-2 h3 {
    font-size: 24px;
  }
  .section-2 .section-box-2 {
    margin-top: 40px;
  }
  .section-2 .section-box-2 .section-item .high-txt {
    font-size: 20px;
  }
  .section-2 .section-box-2 .section-item .high-txt.high-txt-s {
    margin-bottom: 50px;
  }
  .section-2 .section-box-2 .section-item p {
    font-size: 14px;
  }
  .section-3 .section-item {
    font-size: 16px;
  }
}