.footer{
    margin-top: 20px;
    background-color: #333;
    color: white;
    padding: 10px 0;
    display: flex;
    justify-content: center;
    gap: 20px;
}
.footer a{
    color: white;
}
html {
  background: #F4F6F9;
}
body {
  padding-top: 116px;
  padding-bottom: 140px;
}
header {
  position: fixed;
  width: 100%;
  top: 0;
}
header .top_search_box {
  background: #FFFFFF;
  box-shadow: 0px 1px 1px 0px rgba(3, 43, 87, 0.1);
}
header .top_search_box .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 66px;
}
header .top_search_box .container .logo {
  display: flex;
  align-items: center;
  gap: 20px;
  /*margin-right: auto ;*/
}
header .top_search_box .container .logo > img {
  width: 50px;
  height: 50px;
}
header .top_search_box .container .logo .name {
  text-align: center;
}
header .top_search_box .container .logo .name img {
  width: 118px;
  height: 18px;
}
header .top_search_box .container .logo .name p {
  font-size: 12px;
  color: #888;
}
header .top_search_box .search {
  position: relative;
  font-size: 0;
  width: 440px;
  height: 36px;
  background: #FFFFFF;
  border-radius: 200px 200px 200px 200px;
  border: 1px solid #17A9FF;
  display: flex;
}
header .top_search_box .search svg {
  position: absolute;
  width: 15px;
  height: 15px;
  top: 50%;
  left: 0.625rem;
  transform: translateY(-50%);
}
header .top_search_box .search input {
  height: 100%;
  flex: 1;
  padding: 0;
  margin: 0;
  box-sizing: border-box;
  border: none;
  padding-left: 36px;
  background-color: transparent;
  outline: none;
}
header .top_search_box .search button {
  width: 76px;
  height: 100%;
  background: linear-gradient(270deg, #0DB7FE 0%, #3392FF 100%);
  border-radius: 0px 200px 200px 0px;
  border: none;
  outline: none;
  color: white;
  font-size: 14px;
}
header .nav {
  background-color: #121212;
}
header .nav ul {
  display: flex;
}
header .nav ul li {
  cursor: pointer;
  color: white;
  height: 50px;
  padding: 0 20px;
  line-height: 50px;
}
header .nav ul li.active {
  background-color: rgba(255, 255, 255, 0.2);
}
.product_info_card {
  background-color: #fff;
  margin: 15px auto;
  border-radius: 12px;
  display: flex;
  padding: 40px;
  box-sizing: border-box;
}
.product_info_card .logo {
  margin-right: 40px;
  width: 4.6875vw;
  height: 4.6875vw;
  min-width: 60px;
  min-height: 60px;
}
.product_info_card .logo img {
  width: 100%;
  height: 100%;
}
.product_info_card .product_info .product_name {
  display: flex;
  align-items: center;
}
.product_info_card .product_info .product_name .name {
  font-size: 26px;
  margin-right: 40px;
}
.product_info_card .product_info .product_name .item {
  margin-left: 10px;
}
.product_info_card .product_info .product_name .item img {
  width: 16px;
  height: 16px;
  vertical-align: middle;
}
.product_info_card .product_info .product_name .item span {
  color: #00C849;
  vertical-align: middle;
  font-size: 15px;
}
.product_info_card .product_info .product_des {
  margin-top: 15px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
}
.product_info_card .product_info .product_des li {
  font-size: 14px;
  display: flex;
  align-items: center;
  margin-top: 5px;
}
.product_info_card .product_info p {
  font-size: 15px;
  margin-top: 15px;
  background-color: #ECFAF2;
  color: #0FB950;
  padding: 7px 10px;
  border-radius: 5px;
  display: flex;
  align-items: center;
}
.product_info_card .product_info p img {
  margin-right: 7px;
  width: 16px;
  height: 16px;
}
.product_info_card .product_info .platform {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 20px;
}
.product_info_card .product_info .platform li {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 16px;
}
.product_info_card .product_info .platform li img {
  width: 30px;
  height: 30px;
}
.product_info_card #download_button {
  width: 180px;
  height: 58px;
  background: linear-gradient(270deg, #00D997 0%, #00CA8D 100%);
  border-radius: 437px 437px 437px 437px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-left: auto;
  margin-top: 10px;
  font-size: 18px;
}
main {
  background-color: #fff;
  border-radius: 12px;
  margin: 12px auto;
  padding: 30px;
  box-sizing: border-box;
}
main .more > div {
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 60px;
}
main .more > div span {
  color: #389BFF;
  font-size: 16px;
}
main .more > div svg {
  height: 16px;
  width: 16px;
}
main .more .close svg {
  transform: rotate(180deg);
}
main .more .hide {
  display: none;
}
main .product_des ul {
  margin-top: 50px;
}
main .product_des ul li {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 40px;
}
main .product_des ul li:last-of-type {
  margin-bottom: 0;
}
main .product_des ul li p {
  width: 100%;
  font-size: 18px;
  text-indent: 2em;
  line-height: 40px;
}
main .product_des ul li img {
  width: 70%;
  margin-top: 40px;
}
main .product_des ul li.hide {
  display: none;
}
main .comments_card .item {
  padding: 30px 0;
  display: flex;
  gap: 20px;
  border-bottom: 1px solid #ddd;
}
main .comments_card .item:last-of-type {
  border-bottom: none;
}
main .comments_card .item .left {
  width: 70px;
  height: 70px;
  background-repeat: no-repeat;
  background-size: auto 100%;
  background-image: url(https://datasource.yiqiuxing.cn/AudioConversion/webPageImage/images/avatar.png);
  flex: 0 0 auto;
}
main .comments_card .item .right {
  flex: 1;
}
main .comments_card .item .right .user_info {
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
main .comments_card .item .right .user_info .name {
  font-family: PingFang SC, PingFang SC;
  font-weight: 400;
  color: #333333;
  line-height: 20px;
  font-size: 19px;
}
main .comments_card .item .right .user_info .card_time {
  color: #999999;
  line-height: 18px;
}
main .comments_card .item .right .content {
  font-size: 18px;
  color: #666666;
  line-height: 28px;
}
main .comments_card .item .right .content img {
  margin-top: 10px;
  width: 50%;
}
main .comments_card .item .right .card_info {
  display: flex;
  align-items: center;
  gap: 40px;
  margin-top: 20px;
}
main .comments_card .item .right .card_info li {
  display: flex;
  align-items: center;
  gap: 5px;
}
main .comments_card .item .right .card_info li img {
  width: 19px;
  height: 19px;
}
main .comments_card .item .right .card_info li span {
  font-size: 16px;
  color: #999999;
  line-height: 23px;
}
main .comments_card .item .right .reply_list {
  margin-top: 10px;
  border-top: 1px dashed #ddd;
  padding-top: 20px;
}
main .comments_card .item .right .reply_list .reply_item {
  display: flex;
  padding: 25px;
  background-color: #F9F9F9;
  box-sizing: border-box;
  gap: 20px;
}
main .comments_card .item .right .reply_list .reply_item .reply_left img {
  width: 60px;
  height: 60px;
  background-color: deeppink;
}
main .comments_card .item .right .reply_list .reply_item .reply_right {
  flex: 1;
}
main .comments_card .item .right .reply_list .reply_item .reply_right .user_info .name {
  color: #0098FF;
}
main .comments_card .item .right .reply_list .reply_item .reply_right .content #download_button {
  color: deepskyblue;
}
footer {
  width: 100%;
  background-color: #fff;
  position: fixed;
  bottom: 0;
  padding: 15px 0 0;
  box-shadow: 0px -3px 8px 0px rgba(0, 56, 114, 0.1021);
}
footer .container {
  display: flex;
  align-items: center;
}
footer img {
  width: 60px;
  height: 60px;
  margin-right: 20px;
}
footer span {
  font-size: 18px;
  font-weight: bold;
}
footer #download_button {
  width: 180px;
  height: 45px;
  background: linear-gradient(270deg, #00D997 0%, #00CA8D 100%);
  border-radius: 100vw;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-left: auto;
  font-size: 18px;
}
.back_top {
  cursor: pointer;
  position: fixed;
  right: 10px;
  bottom: 200px;
  background-color: #fff;
  border-radius: 50%;
  padding: 15px;
  box-shadow: 0 0 10px 5px #eee;
}
.back_top svg {
  width: 30px;
  height: 30px;
}