*{
    margin: 0;
    padding: 0;
}
/* 导航栏样式 */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: all 0.3s ease;
    background-color: rgba(0, 0, 0, 0.9); /* 半透明深色背景 */
}

header.scrolled {
    background-color: rgba(0, 0, 0, 0.9);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.header-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 50px;
}

/* 公司Logo样式 */
.company-logo {
    max-height: 40px;
    max-width: 200px;
    display: block;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 60px;
}

/* 地图信息样式 */
.map-info {
    padding: 10px;
    text-align: center;
}

.map-info h3 {
    margin: 0 0 5px;
    font-size: 16px;
    color: #333;
}

.map-phone-info {
    margin: 0;
    font-size: 14px;
    color: #555;
}

.map-info-logo {
    max-height: 30px;
    max-width: 60px;
    margin-right: 10px;
}

.main-nav {
    margin-left: auto;
    margin-right: 30px;
    display: flex;
    align-items: center;
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: 40px;
}

.main-nav a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    text-transform: uppercase;
    font-size: 16px;
    transition: all 0.3s ease;
    position: relative;
    font-family: 'Alibaba PuHuiTi 3.0', sans-serif;
    padding: 5px 0;
}

.main-nav a:hover,
.main-nav a.active {
    opacity: 1;
    color: white;
}

.main-nav a:hover::after,
.main-nav a.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: white;
}

.language-switch {
    color: white;
    font-size: 18px;
    font-family: 'Inter', sans-serif;
    cursor: pointer;
}

.mobile-menu-toggle {
    display: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
}

/* 页脚样式 */
footer {
    background-color: rgba(0, 0, 0, 0.9);
    color: white;
    padding: 60px 5% 30px;
}

.newsletter-title {
    text-align: center;
    margin-bottom: 60px;
}

.newsletter-title h2 {
    color: white;
    font-size: 32px;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 500;
    font-family: 'PingFang SC', sans-serif;
}

.footer-content {
    display: flex;
    justify-content: center;
    gap: 120px;
    margin-bottom: 40px;
    position: relative;
    padding: 0 20px;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.footer-content:before, .footer-content:after {
    content: '';
    position: absolute;
    width: 1px;
    height: 81px;
    background-color: rgba(255, 255, 255, 0.2);
    top: 0;
}

.footer-content:before {
    left: calc(33% - 20px);
}

.footer-content:after {
    right: calc(33% - 20px);
}

.footer-column {
    text-align: center;
    flex: 1;
    max-width: 150px;
}

.footer-column h3 {
    text-transform: uppercase;
    margin-bottom: 20px;
    font-size: 18px;
    position: relative;
    padding-bottom: 10px;
    font-family: 'PingFang SC', sans-serif;
    font-weight: 500;
    text-align: center;
}

.footer-column h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 2px;
    background-color: #A5282C;
}

.footer-column ul {
    list-style: none;
    text-align: center;
    padding: 0;
}

.footer-column li {
    margin-bottom: 20px;
}

.footer-column a {
    color: #fff;
    text-decoration: none;
    transition: color 0.3s ease;
    font-family: 'PingFang SC', sans-serif;
    font-size: 14px;
    font-weight: 400;
}

.footer-column a:hover {
    color: white;
}

.footer-column p {
    font-size: 14px;
    font-family: 'PingFang SC', sans-serif;
    text-align: center;
    margin-top: 25px;
}

/* 社交媒体图标样式 */
.social-icons-container {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
    margin-top: 40px;
}

.social-icons {
    display: flex;
    gap: 30px;
    justify-content: center;
}

.social-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    transition: transform 0.3s ease;
}

.social-icons a img {
    width: 30px;
    height: 30px;
}

.social-icons a:hover {
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding: 10px 0;
    font-size: 14px;
    font-family: 'PingFang SC', sans-serif;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    gap: 5px;
}

.footer-bottom div {
    position: relative;
    line-height: 1.4;
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 400;
}

/* 移动端适配 */
@media (max-width: 992px) {
    .header-wrapper {
        padding: 15px 20px;
    }
    
    .main-nav {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: rgba(0, 0, 0, 0.9);
        padding: 20px 0;
        display: none;
    }
    
    .main-nav.open {
        display: block;
        animation: fadeIn 0.5s ease;
    }
    
    .main-nav ul {
        flex-direction: column;
        align-items: center;
        gap: 8px; /* 减小移动端菜单项间距 */
    }

    .main-nav ul li {
        margin: 0; /* 移除默认margin */
    }
    
    .main-nav a {
        font-size: 18px;
        padding: 8px 0; /* 减小内边距 */
        display: block;
        width: 100%;
        text-align: center;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 40px;
        align-items: center;
    }
    
    .footer-content:before,
    .footer-content:after {
        display: none;
    }
    
    .footer-column {
        width: 100%;
        max-width: 250px;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}