@import url("https://fonts.googleapis.com/css?family=Poppins:200,300,400,500,600,700,800,900,&display=swap");

/* .select{
    border-bottom: 3px solid #000;
} */
body{
    background-color: #fff;
}
*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}
.select{
    color: #fff;
    border-bottom: 3px solid #4a90e2;
    margin-bottom: 0;
    padding: 0 3px 5px 5px;
    /* padding-bottom: 4px; 让下划线距离文字底部3px */
}
header{
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 30px 120px;
    transition: 0.6s;
    z-index: 3;
    background-color: rgba(0, 0, 0, 0);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}
header .logo{
    width: auto;
    height: 50px;
    text-transform: uppercase;
    letter-spacing: 2px;
    transition: 0.6s;
}
header ul{
    display: flex;
    justify-self: center;
    align-items: center;
}
header li{
    list-style: none;
}
header li a{
    margin: 0 15px;
    text-decoration: none;
    color: #fff;
    font-weight: 500px;
    letter-spacing: 2px;
    transition: 0.6s;
    font-weight: 600;
}

header.sticky{
    padding: 6px 100px;
    background-color: #fff;
    box-shadow: 2px 2px 10px 5px rgba(0, 0, 0, 0.2);
}
header.sticky .logo,
header.sticky ul li a{
    color: #000;
}


.footer-box {
    width: 100%;
    padding: 60px 0 20px;
    background-color: #f5f8fc;
    border-top: 1px solid #eee;
}
.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    margin-bottom: 60px;
}
.footer-brand {
    max-width: 400px;
}
.brand-info {
    margin-bottom: 24px;
}
.footer-logo {
    height: 50px;
    margin-bottom: 16px;
}
.brand-info h2 {
    font-size: 24px;
    color: #333;
    margin-bottom: 16px;
}
.brand-info p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}
.social-links {
    display: flex;
    gap: 16px;
}
.social-links a{
    color: #eee;
    width: 20px;
    height: 20px;
    opacity: 0.7;
    transition: opacity 0.3s;
}
.social-links a span{
    color: #666666;
}
.footer-nav {
    display: flex;
    gap: 80px;
}
.nav-column h3 {
    font-size: 16px;
    font-weight: 600;
    color: #333;
    margin-bottom: 20px;
}
.nav-column ul {
    list-style: none;
    padding: 0;
}
.nav-column ul li {
    margin-bottom: 12px;
}
.nav-column ul li a {
    color: #666;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
}
.nav-column ul li a:hover {
    color: #333;
}
.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid #eee;
}
.footer-bottom span {
    color: #666;
    font-size: 14px;
}
.footer-bottom a {
    color: #666;
    font-size: 14px;
    text-decoration: none;
}
.legal-links {
    display: flex;
    gap: 24px;
}
.legal-links a {
    color: #666;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
}
.legal-links a:hover {
    color: #333;
}
.social-links span{
    font-size: 18px;
}

/* Slideshow cross-fade animation styles */
.slideshow {
    position: relative;
    overflow: hidden;
}

.slideshow-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 1;
    transition: opacity 1s ease-in-out;
}

.slideshow-img.next {
    opacity: 0;
}