* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background-color: #FFF;
}

header {
    position: fixed;
    width: 100%;
    background: rgba(17, 112, 202, 0.9); /* 半透明背景 */
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between; /* Logo 和 导航 之间间距 */
    padding: 10px 20px; /* 调整内边距 */
    backdrop-filter: blur(10px); /* 模糊效果 */
}

.logo {
    width: 150px; /* 调整 Logo 大小 */
    height: auto;
}

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

nav ul li {
    margin-right: 20px;
}

nav ul li a {
    color: white;
    text-decoration: none;
    font-size: 1.2em;
}

.section {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    scroll-snap-align: start;
    position: relative;
    text-align: center; /* 文字居中 */
    overflow: hidden; /* 隐藏溢出内容 */
}

.content {
    max-width: 1000px; /* 设置内容的最大宽度 */
    margin: 0 auto; /* 居中内容 */
    padding: 20px; /* 内边距 */
    padding-top: 100px;
    position: relative;
    z-index: 1;
    opacity: 0; /* 默认隐藏文字 */
    transition: opacity 1s ease; /* 渐变动画 */
}

.content h1 {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    margin-bottom: 50px;
    text-align: center;
    font-size: 3.5em;
    color:#E85F11;
}
.content h2 {
    font-size: 2.2em;
    margin-bottom: 10px;
    color: #FFF;
}

.content p {
    font-size: 1.4em;
    line-height: 1.6;
    color: #FFF;
}
.content ul li {
    font-size: 1.4em;
    line-height: 1.6;
    color: #FFF;
    list-style-type: none;
}
.container {
    display: flex;
    flex-direction: row;
    justify-content: space-between;

}
.item {
    flex: 1;
    text-align: center;
    box-sizing: border-box;
    font-size: 1.2em;
    height: 250px;
    padding-top: 70px;
    color: #333;
}
.item h3 {
    font-size: 1.5em;
}
.item:hover {
    background-color: #F8F8F8; /* 鼠标悬停时的背景颜色 */
    color: #000;
    border-bottom: 4px solid #f93ea2;
}
.sku {
    width: 100%;
    height: 200px;

    background-size: cover;
    margin-top: 40px;
}

.background-image {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    position: relative;
}
.bgimages {
    position: relative;
    width: 100%;
    height: 100vh;
    background-size: cover;
    background-position: center;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: background-image 0.5s ease-in-out; /* 平滑过渡效果 */
}

.btn-more {
    inset: 0;
    margin: auto;
    border-radius: 30px;
    background: rgba(17, 112, 202, 0.9); /* 默认白色半透明 */
    color: #FFF;
    border: none;
    padding: 10px 20px;
    font-size: 1em;
    cursor:pointer;
    transition: background-color 0.2s ease;
    z-index: 1000;
    font-size: 1.5em;
}

.btn-more:hover {
    color: #FFF;
    background: rgba(249, 62, 162, 0.9); /* 默认白色半透明 */
}

.heise {
    color: #000;
}
footer{
    padding: 20px;
    font-size: 1.2em;
    text-align: center;
    margin: 80px 0px;
    color: rgba(0, 0, 0, 0.8);
}
footer a{
    color: rgba(0, 0, 0, 0.8);
    text-decoration: none;
    transition: color 0.3s ease, background-color 0.3s ease;
}

footer a:hover {
    color: rgba(0, 0, 0, 1.0);
    text-decoration: underline;
}
footer img{
    width: 15%;
    text-align: center;
    padding: 0;
    margin: 0;
    margin-top: 20px;
}
/* 响应屏幕尺寸 */
@media (max-width: 900px) {
    header {
        padding: 10px; /* 调整内边距 */
        flex-direction: column; /* 垂直排列 */
        align-items: flex-start; /* 左对齐 */
    }

    .logo {
        margin-bottom: 10px; 
    }

    nav {
        display: none;
    }

    .content h1 {
        position: fixed;
        bottom: 0;
        margin-bottom: 100px;
        text-align: center;
        font-size: 2em;
    }

    .container {
        flex-direction: column; 
        font-size: 1.2em;
    }
    .item {
        padding: 20px 0px;
    }
    .item h3 {
        font-size: 1.2em;
    }
    .item:hover {
        background-color: #FFF; 
        border-bottom: none;
    }
    .btn-more {
        font-size: 2em;
    }
    footer img{
    width: 50%;
    text-align: center;
    padding: 0;
    margin: 0;
    margin-top: 20px;
}

}