/* 通用样式 */
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    color: #333;
    background-color: #f5f5f5;
}

/* 导航栏样式 */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(72, 72, 72, 0); /* 初始透明 */
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    transition: background-color 0.3s ease;
}

header.visible {
    background-color: rgb(63, 63, 63); /* 滚动后显示背景色 */
}

.logo img{
    width: 40%;
}

header .nav{
    width: 20%;
}

nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
}

nav ul li {
    margin-left: 40px;
}

nav ul li a {
    color: #fff;
    text-decoration: none;
    font-size: 16px;
}

nav ul li a:hover {
    color: #b7b54a;
}

/* Banner区域 */
.banner {
    background-image: url('../img/banner3.jpg');
    background-size: cover;
    background-position: center;
    height: 100vh; /* 满屏高度 */
    display: flex;
    justify-content: center;
    align-items: center;
    color: #fff;
    text-align: center;
}

.banner h1 {
    font-size: 48px;
    margin: 0;
}

.banner p {
    font-size: 24px;
    margin: 10px 0 0;
}

/* 下载按钮 */
.download-buttons {
    margin-top: 20px;
}

.btn-download {
    display: inline-block;
    padding: 10px 20px;
    text-decoration: none;
    border-radius: 5px;
    margin: 5px;
    font-size: 16px;
    font-weight: bold;
    transition: background-color 0.3s ease;
}

.btn-download.android {
    background-color: #34a853; /* 安卓绿色 */
    color: #fff;
}

.btn-download.ios {
    background-color: #000; /* 苹果黑色 */
    color: #fff;
}

.btn-download.android:hover {
    background-color: #2d9147; /* 安卓绿色（深色） */
}

.btn-download.ios:hover {
    background-color: #333; /* 苹果黑色（深色） */
}

/* 会员专区 */

.vip img{
    width: 85%;
    border-radius: 10px;
}

/* 服务介绍 */
.services {
    width: 90%;
    position: relative;
    margin-top: -100px; /* 向上移动100px，覆盖Banner图 */
    padding: 60px 20px;
    text-align: center;
    background-color: #fff;
    margin-left: 50%;
    transform: translateX(-50%);;
    border-radius: 10px 10px 0 0; /* 圆角效果 */
    box-shadow: 0 -4px 10px rgba(0, 0, 0, 0.1); /* 添加阴影 */
    z-index: 1; /* 确保内容在Banner图上方 */
}

.services h2 {
    font-size: 36px;
    margin-bottom: 20px;
    color: #2c3e50;
}

.service-item {
    display: inline-block;
    width: 30%;
    margin: 10px;
    vertical-align: top;
}

.service-item img {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    margin-bottom: 10px;
}

.service-item h3 {
    font-size: 24px;
    margin: 10px 0;
    color: #2c3e50;
}

.service-item p {
    font-size: 16px;
    color: #666;
}

/* 底部区域 */
footer {
    background-color: #393a3b;
    color: #fff;
    padding: 5px;
    text-align: center;
}

footer .social-media a {
    color: #fff;
    text-decoration: none;
    margin: 0 8px;
}

footer .copyright {
    margin-top: 5px;
    font-size: 14px;
}

/* 默认样式 */
.beian-link {
    color: #fff; /* 字体颜色为灰色 */
    text-decoration: none; /* 去掉下划线 */
}

/* 鼠标悬停样式 */
.beian-link:hover {
    text-decoration: underline; /* 只添加下划线，字体颜色不变 */
}