* {
  padding: 0;
  margin: 0;
  list-style: none;
  text-decoration: none;
  color: #000;
}
.container {
  width: 1280px;
  margin: 0 auto;
}
body {
  background-image: url("../image/bg.gif");
}
::-webkit-scrollbar-button {
  display: none;
}
.header {
  background-color: #ccc3;
  backdrop-filter: blur(1px);
  transition: 0.1s;
  position: relative;
  z-index: 1000;
}
.header:hover {
  background-color: #fff;
}
.header .topnav {
  height: 50px;
  padding: 0 25px;
  display: flex;
  position: relative;
  justify-content: space-between;
}
.header .nav-left {
  display: flex;
  justify-content: center;
  align-items: center;
}
.header .nav-left .logo {
  width: 100px;
  height: 50px;
  background: url("../images/tencent-cloud-black.svg") no-repeat left;
}
.header .nav-left .nav-list {
  display: flex;
  justify-content: center;
  align-items: center;
}
.header .nav-left .nav-list li {
  margin: 0 15px;
}
.header .nav-left .nav-list li a {
  display: inline-block;
  font-size: 14px;
  color: #666;
  transition: 0.2s;
  text-align: center;
}
.header .nav-left .nav-list li a i {
  font-size: 14px;
  margin-right: 10px;
  color: #333;
}
.header .nav-left .nav-list li a:hover {
  color: #40a7bb;
}
.header .nav-user {
  position: relative;
  display: flex;
  align-items: center;
}
.header .nav-user a {
  line-height: 50px;
  color: #666;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
}
.header .nav-user a span {
  margin: 0 8px;
}
.header .nav-user a .fa-user-circle {
  font-size: 24px;
  color: #333;
}
.header .nav-user a .fa-angle-down {
  font-size: 12px;
  color: #333;
}
.header .nav-user .user-info {
  width: 100%;
  height: 0px;
  background-color: #fff;
  position: absolute;
  top: 51px;
  box-shadow: 0 4px 5px rgba(0, 0, 0, 0.2);
  transition: 0.3s;
  z-index: 1000;
}
.header .nav-user:hover .user-info {
  height: 300px;
}
.main {
  margin-top: 10px;
}
.main .banner {
  height: 550px;
  display: flex;
  justify-content: space-between;
}
.main .banner .m-left {
  width: 300px;
  background-color: #eee;
  position: relative;
}
.main .banner .m-middle {
  width: 665px;
  background-color: #ccc;
  position: relative;
}
.main .banner .m-middle .ceshi {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.main .banner .m-right {
  width: 300px;
  background-color: #ddd;
  position: relative;
}
.main .banner label {
  transform: scale(0.3);
  width: 100px;
  height: 50px;
  background-color: #ccc;
  position: absolute;
  border: 1px solid #ccc;
  border-radius: 25px;
  overflow: hidden;
}
.main .banner label input {
  visibility: hidden;
}
.main .banner label input::after {
  content: "";
  width: 40px;
  height: 40px;
  background-color: #fff;
  position: absolute;
  border-radius: 50%;
  left: 5px;
  top: 5px;
  visibility: visible;
  transition: 0.2s;
}
.main .banner label input:checked::after {
  transform: translate(125%);
}
.main .banner label input::before {
  content: "";
  width: 100%;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
  visibility: visible;
  transition: 0.3s;
}
.main .banner label input:checked::before {
  background-color: #40a7bb;
}
.main .banner2 {
  height: 150px;
  background-color: #40a7bb;
  margin-top: 10px;
}
.footer {
  margin-top: 10px;
  background-color: #333;
  padding: 20px 0;
  box-sizing: border-box;
}
.footer .links {
  height: 30px;
  display: flex;
  justify-content: space-evenly;
}
.footer .links li {
  vertical-align: middle;
}
.footer .links li a {
  color: #fff;
  font-size: 12px;
}
.footer .copyright-text {
  height: 40px;
  line-height: 40px;
  text-align: center;
}
.footer .copyright-text span {
  color: #fff;
}