/* 去除默认样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

ul {
    list-style: none;
}

a {
    text-decoration: none;
    color: inherit;
}

/* 头部样式 */
header {
    background-color: #050624;
    padding: 1rem 0;
    width: 100%;
    height: 120px;
    z-index: 1000;
    display: flex;
    min-width: 1248px;
    position: absolute;
    top: 0;
}

.header-container {
    position: relative;
    color: white;
    margin: 0 auto;
    display: flex;
    align-items: center;
    width: 1248px;
}

.logo {
    line-height: 0;
    margin-right: 79px;
}

.logo a {
    display: inline-block;
    width: 71px;
    height: 48px;
    background: url("../assets/logo.png") no-repeat center/cover;
}

nav {
    margin-right: 182px;
}

nav ul {
    display: flex;
    gap: 46px;
}

nav a {
    color: white;
    transition: color 0.3s;
    opacity: 0.4;
}

nav a:hover,
nav a.active {
    opacity: 1;
}

.header-buttons {
    display: flex;
    gap: 42px;
}

.btn {
    width: 192px;
    height: 66px;
    border-radius: 33px;
    border: 2px solid #FFFFFF;
    font-size: 20px;
    color: #fff;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
    background-color: transparent;
}

.btn:hover {
    background-color: #1e1f3a;
}

/* 浮层本体 */
.app-popover {
  position: absolute;
  top: calc(100% + 10px);
  left: 56%;
  width: 411px;
  background: rgba(5, 6, 36, 0.93);
  border-radius: 24px;
  border: 1px solid #fff;
  z-index: 2000;

  opacity: 0;
  visibility: hidden;
  transition: opacity .25s ease, visibility .25s ease;
}

.app-popover.show {
  opacity: 1;
  visibility: visible;
}

.app-popover__close {
  position: absolute;
  right: 16px;
  top: 16px;
  color: #fff;
  cursor: pointer;
  line-height: 1;

  opacity: 0.8;
}

.app-popover__close:hover {
    opacity: 1;
}

.app-popover__content {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-around;
  color: #fff;
  margin-top: 40px;
  padding: 0 24px;
}

.app-popover__content .img-wrapper {
    border: 4px solid #fff;
    border-radius: 10px;
    background-color: #fff;
}

.app-popover__content .qr-code {
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-align: center;
    gap: 8px;
    margin-bottom: 30px;
    font-size: 22px;
    font-weight: 300;
}

.app-popover__content img{
    display: block;
    width: 120px;
}

/* 脚部样式 */
footer {
    background-color: #050624;
    color: white;
    min-width: 1248px;
    height: 260px;
    display: flex;
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 1248px;
    margin: 0 auto;
}

.content-left {
    display: flex;
    flex-direction: column;
}

.content-left ul {
    display: flex;
    flex-wrap: wrap;
}

.content-left ul li {
    color: #fff;
    opacity: 0.5;
}

.agreement ul {
    gap: 61px;
}

.agreement ul li {
    opacity: 1;
}

.agreement a {
    color: #fff;
}

.btn-agreement {
    cursor: pointer;
}

.description {
    margin-top: 39px;
    font-size: 14px;
}

.description ul {
    gap: 20px 39px;
    align-items: center;
}

.description ul li:last-child {
    display: flex;
    align-items: center;
}

.description li img {
    width: 24px;
    height: 26px;
    margin-right: 4px;
}

.content-right img {
    width: 363px;
    height: 117px;
}