html,
body {
  height: 100%;
  font-size: 16px;
  overflow-y: auto;
  overflow-x: hidden;
  margin: 0;
}
.main-container {
  position: relative;
  height: 100%;
  margin: 0 auto;
  width: 100%;
  max-width: 750px;
  font-size: 1rem;
  display: flex;
  flex-direction: column;
}
.main-container .content-box {
  flex: 1;
  overflow: auto;
}
.main-container .content-box::-webkit-scrollbar {
  width: 0;
}
.main-container .mask {
  width: 100%;
  height: 0;
  position: absolute;
  left: 0;
  top: 0;
  background-color: rgba(0, 0, 0, 0.6);
}
/* -------- head start -------- */
.head {
  height: 3rem;
  font-size: 0;
}
.head .head-fixed {
  height: 3rem;
  position: relative;
  /* position: fixed;
            top: 0;
            left: 0;
            right: 0; */
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #fff;
  z-index: 1;
}
.head .head-fixed .head-logo {
  height: 1.5rem;
}
.head .head-fixed .head-language {
  position: absolute;
  left: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  height: 1.5rem;
}
.head .head-fixed .head-action {
  width: 1.25rem;
  height: 1.25rem;
  position: absolute;
  right: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
}
.head .head-fixed .action-list {
  text-align: center;
  position: absolute;
  right: 0.3125rem;
  top: 120%;
  background-color: #fff;
  font-size: 1rem;
  display: none;
}
.head .head-fixed .action-list .action-item {
  padding: 0.625rem;
}
.head .head-fixed .action-list .action-item:not(:first-of-type) {
  border-top: 1px solid #ccc;
}
/* -------- content start -------- */
.content {
  font-size: 0;
}
.content .content-img {
  width: 100%;
}
.foot {
  background-image: url(../images/home/foot_bg.png);
  background-size: 100% 100%;
  color: #fff;
  padding: 1.5rem 1.25rem 1.25rem;
  box-sizing: border-box;
}
.foot .foot-title {
  font-size: 1.5rem;
  text-align: center;
  margin-bottom: 0.625rem;
}
.foot .foot-info {
  margin-top: 0.3125rem;
  display: flex;
  align-items: flex-start;
  font-size: 0.875rem;
}
.foot .foot-info .foot-info-icon {
  width: 0.75rem;
  margin-top: 0.2rem;
  margin-right: 0.3125rem;
  flex-shrink: 0;
}
.foot .qrcode-box {
  margin-top: 1.25rem;
  margin-bottom: 2.5rem;
  text-align: center;
  display: flex;
  justify-content: space-evenly;
}
.foot .qrcode-box .qrcode-item {
  background-color: #fff;
  padding: 0.625rem;
  border-radius: 0.75rem;
  font-size: 0;
  color: #000;
}
.foot .qrcode-box .qrcode-item .qrcode-img {
  width: 6.25rem;
  height: 6.25rem;
}
.foot .qrcode-box .qrcode-item .qrcode-title1 {
  width: 7.25rem;
  font-size: 1rem;
  margin-top: 0.3125rem;
}
.foot .qrcode-box .qrcode-item .qrcode-title2 {
  width: 7.25rem;
  font-size: 0.875rem;
}
.foot-company {
  text-align: center;
  font-size: 0.875rem;
}
.foot-company a {
  text-decoration: none;
  color: #fff;
}
.foot-company a:hover {
  text-decoration: underline;
}