.container {
  width: 1120px;
  margin: 0 auto;
}
body {
  min-width: 1200px;
  margin: 0;
  padding: 0;
}
header {
  background-color: #fff;
  box-shadow: 0 0 10px 5px rgba(0, 0, 0, 0.1);
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 9999;
}
header .container {
  display: flex;
  align-items: center;
  height: 60px;
}
header .container .logo {
  margin-right: 20px;
}
header .container .logo img {
  height: 30px;
}
header .container .text {
  font-weight: bold;
}
header .container nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 20px;
}
header .container nav a {
  text-decoration: none;
  color: #333;
  font-size: 14px;
}
header .container #download_button {
  margin-left: 100px;
  width: 100px;
  height: 35px;
  background-color: #000;
  color: white;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 5px;
  cursor: pointer;
  user-select: none;
}
header .container #download_button:active {
  background-color: #222;
}
main {
  padding-top: 60px;
}
main .home .nav {
  padding: 12px 0;
  text-align: center;
  background-color: black;
  color: white;
  font-size: 14px;
}
main .home .container {
  margin-top: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 50px;
}
main .home .container .content .info {
  display: flex;
  align-items: center;
  gap: 30px;
}
main .home .container .content .info .logo img {
  width: 80px;
}
main .home .container .content .info .name p {
  font-size: 32px;
  padding: 0;
  margin: 0;
}
main .home .container .content .info .name h1 {
  font-size: 32px;
  padding: 0;
  margin: 0;
  font-weight: normal;
}
main .home .container .content .desc {
  margin-top: 80px;
  font-size: 18px;
  line-height: 32px;
}
main .home .container .content #download_button {
  width: 180px;
  height: 50px;
  background-color: #000;
  color: white;
  font-weight: bold;
  line-height: 50px;
  text-align: center;
  font-size: 18px;
  border-radius: 10px;
  margin: 50px 0;
  user-select: none;
  cursor: pointer;
}
main .home .container .content #download_button:active {
  background-color: #222;
}
main .home .container .content .subtitle img {
  width: 25px;
  vertical-align: middle;
  margin-right: 10px;
}
main .home .container .content .subtitle span {
  font-size: 18px;
  vertical-align: middle;
  color: #666;
}
main #productList.container {
  display: flex;
  flex-wrap: wrap;
  gap: 3%;
  margin-top: 40px;
}
main #productList.container .item {
  width: 31%;
  padding: 40px;
  box-sizing: border-box;
  box-shadow: 3px 3px 10px 5px rgba(0, 0, 0, 0.1);
  margin-bottom: 40px;
}
main #productList.container .item .name {
  font-size: 24px;
  color: #333;
  margin: 10px 0 0;
}
main #productList.container .item .name span {
  color: red;
  padding-left: 15px;
}
main #productList.container .item .type {
  margin-top: 25px;
  color: #666;
  font-size: 18px;
}
main #productList.container .item .desc {
  margin-top: 20px;
  font-size: 16px;
  line-height: 24px;
  color: #666;
}
main #productList.container .item img {
  width: 80px;
  filter: drop-shadow(0 5px 5px rgba(0, 0, 0, 0.5));
}
main #productList.container .item #download_button {
  width: 120px;
  height: 40px;
  background-color: #000;
  color: white;
  border-radius: 5px;
  margin-top: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  user-select: none;
}
main #productList.container .item #download_button:active {
  background-color: #222;
}
main .comments {
  margin-top: 40px;
}
main .comments .title {
  font-size: 24px;
  font-weight: bold;
  text-align: center;
}
main .comments .subtitle {
  margin-top: 20px;
  font-size: 21px;
  text-align: center;
}
main .comments .comments_container {
  margin-top: 80px;
  display: flex;
  gap: 3%;
}
main .comments .comments_container .item {
  width: 31%;
  box-shadow: 0 5px 5px 5px rgba(0, 0, 0, 0.1);
  padding: 35px;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-radius: 10px;
}
main .comments .comments_container .item .content {
  font-size: 23px;
  font-weight: bold;
  line-height: 45px;
}
main .comments .comments_container .item .user_info {
  display: flex;
  margin-top: 70px;
  align-items: center;
}
main .comments .comments_container .item .user_info .avatar {
  background-image: url(../img/avatar.png);
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background-repeat: no-repeat;
  background-size: auto 80px;
}
main .comments .comments_container .item .user_info .info {
  margin-left: 20px;
}
main .comments .comments_container .item .user_info .info .name {
  font-size: 19px;
  font-weight: bold;
}
main .comments .comments_container .item .user_info .info .type {
  color: #666;
  margin-top: 7px;
}
main .question {
  margin-top: 80px;
}
main .question .title {
  text-align: center;
  font-size: 24px;
  font-weight: bold;
}
main .question .container {
  margin-top: 50px;
}
main .question .container .item {
  margin-bottom: 20px;
  box-shadow: 0 0 10px 5px rgba(0, 0, 0, 0.1);
}
main .question .container .item .top {
  background-color: black;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 30px;
  box-sizing: border-box;
  color: white;
  font-size: 20px;
}
main .question .container .item .top span {
  font-size: 30px;
  cursor: pointer;
  user-select: none;
  transition: all 0.3s ease-in-out;
  overflow: hidden;
}
main .question .container .item .bottom {
  height: 0;
  transition: all 0.3s ease-in-out;
  overflow: hidden;
}
main .question .container .item .bottom .content {
  padding: 30px;
  box-sizing: border-box;
  font-size: 18px;
}
main .question .container .item .active {
  height: 100px;
}
footer {
  background-color: #333333;
}
footer .container {
  height: 60px;
  color: #ccc;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 100px;
  font-size: 14px;
}
footer #ICPnumber {
  display: flex;
  align-items: center;
  justify-content: center;
}
footer #ICPnumber a {
  color: inherit;
  text-decoration: inherit;
}