/* 全局样式重置 - 移除白色边框 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    width: 100%;
    background: #fff;
    overflow-x: hidden;
}

/* 隐藏滚动条 */
body::-webkit-scrollbar {
    display: none;
}

body {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

/* 底部样式 */
.footer {
    background: #484848;
    color: #fff;
    padding: 60px 0 30px;
    width: 100%;
}

.footer .container {
    max-width: 70% !important;
    margin: 0 auto !important;
    padding: 0 !important;
}

.footer-content {
    display: grid;
    grid-template-columns: 3fr 0.6fr 0.7fr 0.7fr 0.7fr 0.6fr 1fr;
    margin-bottom: 40px;
}

/* 在左边公司信息和右边导航列之间增加更大的间距 */
.footer-content > .company-info {
    margin-right: 200px;
}

/* 公司信息区域 */
.company-info {
    display: flex;
    flex-direction: column;
}

.footer-logo {
    height: 30px;
    width: auto;
    object-fit: contain;
    margin: 0 0 20px 0;
}

.company-desc p {
    color: #ccc;
    line-height: 1.6;
    font-size: 14px;
    margin: 30px 0 20px 0;
}

.contact-icons {
    display: flex;
    gap: 10px;
}

.contact-icon {
    width: 40px;
    height: 40px;

    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: none;

}

.contact-icon:hover {
    background: #45a049;
}

.contact-icon-img {
    width: 100%;
    height: 100%;
    object-fit: contain;

}

/* 通用标题样式 */
.footer-title {
    font-size: 18px;
    font-weight: bold;
    color: #fff;
    margin: 0 0 20px 0;
    padding-bottom: 0;
    border-bottom: none;
}

/* 导航列表样式 */
.footer-nav-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-nav-item {
    margin-bottom: 15px;
}

.footer-nav-link {
    color: rgba(255, 255, 255, 0.6);

    text-decoration: none;
    font-size: 16px;
    transition: none;
    line-height: 1.4;
}

.footer-nav-link:hover {
    color: #fff;
}

/* 联系我们区域 */
.contact-details {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 5px;
}

.contact-item .contact-icon {
    width: 16px;
    height: 16px;
    background: transparent;
    color: #ccc;
    flex-shrink: 0;
    margin-top: 2px;
}

.contact-text {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    line-height: 1.4;
}

/* 版权信息 */
.footer-bottom {
    margin-top: 20px;
}

.copyright-line {
    width: 100vw;
    height: 1px;
    background: #555;
    margin: 0 calc(-50vw + 50%) 20px calc(-50vw + 50%);
}

.copyright-text {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
    font-size: 12px;
    color: #999;
}

.copyright-text span {
    white-space: nowrap;
}

.beian-link {
    color: #999;
    text-decoration: none;
    transition: color 0.2s ease;
}

.beian-link:hover {
    color: #fff;
    text-decoration: underline;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .footer-content {

        gap: 40px;
    }
    .footer-logo{
        height: 20px;
    }
    
    .footer-content > .company-info {
        margin-right: 60px;
    }
    

}



@media (max-width: 768px) {
    .footer {
        padding: 40px 20px 25px;
    }
    
    .footer .container {
        max-width: 100% !important;
        padding: 0 15px !important;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
        padding: 0;
        margin-bottom: 30px;
    }
    
    /* 隐藏除公司信息和联系我们外的其他区域 */
    .about-us,
    .product-center,
    .production-base,
    .technical-service,
    .human-resources {
        display: none !important;
    }
    
    .company-info {
        grid-column: 1;
        margin-right: 0 !important;
    }
    
    .contact-us {
        grid-column: 2;
    }
    
    .footer-logo {
        height: 20px;
        margin-bottom: 18px;
    }
    
    .company-desc p {
        font-size: 13px;
        margin-bottom: 18px;
        line-height: 1.6;
    }
    
    .footer-title {
        font-size: 15px;
        margin-bottom: 18px;
    }
    
    .footer-nav-item {
        margin-bottom: 12px;
    }
    
    .footer-nav-link {
        font-size: 13px;
    }
    
    .contact-text {
        font-size: 13px;
        word-break: break-all;
        line-height: 1.5;
    }
    
    .contact-item {
        gap: 8px;
        align-items: flex-start;
    }
    
    .contact-item .contact-icon {
        margin-top: 3px;
    }
    
    .contact-icons {
        gap: 10px;
        margin-top: 15px;
    }
    
    .contact-icon {
        width: 32px;
        height: 32px;
    }
    
    .copyright-text {
        flex-direction: row;
        gap: 8px;
        text-align: center;
        font-size: 11px;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .copyright-text span {
        display: inline;
        white-space: nowrap;
    }
    
    .footer-bottom {
        margin-top: 25px;
    }
    
    .copyright-line {
        margin-bottom: 15px;
    }
}

@media (max-width: 480px) {
    .footer {
        padding: 30px 15px 20px;
    }
    
    .footer .container {
        padding: 0 12px !important;
        max-width: 100% !important;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 25px;
        padding: 0;
        margin-bottom: 25px;
    }
    
    /* 隐藏除公司信息和联系我们外的其他区域 */
    .about-us,
    .product-center,
    .production-base,
    .technical-service,
    .human-resources {
        display: none !important;
    }
    
    .company-info {
        grid-column: 1 / -1;
    }
    
    .contact-us {
        grid-column: 1 / -1;
    }
    
    .footer-logo {
        height: 20px;
        margin-bottom: 15px;
    }
    
    .company-desc p {
        font-size: 12px;
        line-height: 1.6;
        margin-bottom: 15px;
    }
    
    .footer-title {
        font-size: 14px;
        margin-bottom: 15px;
    }
    
    .footer-nav-item {
        margin-bottom: 10px;
    }
    
    .footer-nav-link {
        font-size: 12px;
        line-height: 1.4;
    }
    
    .contact-details {
        gap: 12px;
    }
    
    .contact-item {
        gap: 8px;
        align-items: flex-start;
    }
    
    .contact-item .contact-icon {
        width: 14px;
        height: 14px;
        margin-top: 3px;
        flex-shrink: 0;
    }
    
    .contact-text {
        font-size: 12px;
        line-height: 1.5;
        word-break: break-all;
    }
    
    .contact-icons {
        gap: 8px;
        margin-top: 10px;
    }
    
    .contact-icon {
        width: 28px;
        height: 28px;
    }
    
    .footer-bottom {
        margin-top: 20px;
    }
    
    .copyright-text {
        font-size: 10px;
        gap: 6px;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .copyright-text span {
        display: inline;
        white-space: nowrap;
    }
    
    .copyright-line {
        margin-bottom: 15px;
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.footer-section {
    animation: fadeInUp 0.6s ease-out;
}

.footer-section:nth-child(1) { animation-delay: 0.1s; }
.footer-section:nth-child(2) { animation-delay: 0.2s; }
.footer-section:nth-child(3) { animation-delay: 0.3s; }
.footer-section:nth-child(4) { animation-delay: 0.4s; }
.footer-section:nth-child(5) { animation-delay: 0.5s; }
.footer-section:nth-child(6) { animation-delay: 0.6s; }
.footer-section:nth-child(7) { animation-delay: 0.7s; }

/* 悬停效果 */
.footer-nav-link:hover {
    text-decoration: underline;
}

.contact-icon:hover svg {
    transform: scale(1.1);
}

/* 滚动到顶部按钮 */
.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: #4CAF50;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    text-decoration: none;
    opacity: 0;
    visibility: hidden;
    transition: none;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-to-top:hover {
    background: #45a049;
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.4);
}

.scroll-to-top svg {
    width: 24px;
    height: 24px;
}

/* 媒体查询 - 1600px */
@media (max-width: 1600px) {
    .footer {
        padding: 45px 0 25px;
    }
    
    .footer-content {
        max-width: 1400px;
        margin: 0 auto;
        padding: 0 20px;
        gap: 35px;
    }
    
    .footer-content > .company-info {
        margin-right: 180px;
    }
    
    .footer .container {
        max-width: 70% !important;
    }
    
    .footer-title {
        font-size: 17px;
    }
    
    .footer-section h3 {
        font-size: 17px;
        margin-bottom: 18px;
    }
    
    .footer-section p,
    .footer-section li {
        font-size: 13px;
    }
    
    .company-desc p {
        font-size: 13px;
    }
    
    .footer-nav-link {
        font-size: 13px;
    }
    
    .contact-text {
        font-size: 13px;
    }
    
    .footer-nav-item {
        margin-bottom: 12px;
    }
    
    .footer-bottom {
        margin-top: 15px;
    }
    
    .copyright-text {
        font-size: 11px;
    }
}

/* 媒体查询 - 1500px */
@media (max-width: 1500px) {
    .footer {
        padding: 40px 0 22px;
    }
    
    .footer-content {
        max-width: 1300px;
        padding: 0 15px;
        gap: 30px;
    }
    
    .footer-content > .company-info {
        margin-right: 160px;
    }
    
    .footer .container {
        max-width: 70% !important;
    }
    
    .footer-title {
        font-size: 16px;
    }
    
    .footer-section h3 {
        font-size: 16px;
        margin-bottom: 16px;
    }
    
    .footer-section p,
    .footer-section li {
        font-size: 13px;
    }
    
    .company-desc p {
        font-size: 13px;
    }
    
    .footer-nav-link {
        font-size: 13px;
    }
    
    .contact-text {
        font-size: 13px;
    }
    
    .footer-nav-item {
        margin-bottom: 11px;
    }
    
    .footer-bottom {
        padding: 18px 15px;
        margin-top: 12px;
    }
    
    .copyright-text {
        font-size: 11px;
    }
}

/* 媒体查询 - 1400px */
@media (max-width: 1400px) {
    .footer {
        padding: 35px 0 20px;
    }
    
    .footer-content {
        max-width: 1200px;
        padding: 0 15px;
        gap: 25px;
    }
    
    .footer-content > .company-info {
        margin-right: 140px;
    }
    
    .footer .container {
        max-width: 70% !important;
    }
    
    .footer-title {
        font-size: 15px;
    }
    
    .footer-section h3 {
        font-size: 15px;
        margin-bottom: 14px;
    }
    
    .footer-section p,
    .footer-section li {
        font-size: 12px;
    }
    
    .company-desc p {
        font-size: 12px;
    }
    
    .footer-nav-link {
        font-size: 12px;
    }
    
    .contact-text {
        font-size: 12px;
    }
    
    .footer-nav-item {
        margin-bottom: 10px;
    }
    
    .footer-bottom {
        padding: 16px 15px;
        margin-top: 10px;
    }
    
    .footer-bottom p {
        font-size: 11px;
    }
    
    .copyright-text {
        font-size: 10px;
    }
}

/* 媒体查询 - 1300px */
@media (max-width: 1300px) {
    .footer {
        padding: 30px 0 18px;
    }
    
    .footer-content {
        max-width: 1100px;
        padding: 0 15px;
        gap: 22px;
    }
    
    .footer-content > .company-info {
        margin-right: 120px;
    }
    
    .footer .container {
        max-width: 100% !important;
    }
    
    .footer-title {
        font-size: 14px;
    }
    
    .footer-section h3 {
        font-size: 14px;
        margin-bottom: 12px;
    }
    
    .footer-section p,
    .footer-section li {
        font-size: 12px;
    }
    
    .company-desc p {
        font-size: 12px;
    }
    
    .footer-nav-link {
        font-size: 12px;
    }
    
    .contact-text {
        font-size: 12px;
    }
    
    .footer-nav-item {
        margin-bottom: 9px;
    }
    
    .footer-bottom {
        padding: 14px 15px;
        margin-top: 8px;
    }
    
    .footer-bottom p {
        font-size: 11px;
    }
    
    .copyright-text {
        font-size: 10px;
    }
}

/* 媒体查询 - 1200px */
@media (max-width: 1200px) {
    .footer {
        padding: 25px 0 16px;
    }
    
    .footer-content {
        max-width: 1000px;
        padding: 0 15px;
        gap: 20px;
    }
    
    .footer-content > .company-info {
        margin-right: 100px;
    }
    
    .footer .container {
        max-width: 100% !important;
    }
    
    .footer-title {
        font-size: 13px;
    }
    
    .footer-section h3 {
        font-size: 13px;
        margin-bottom: 10px;
    }
    
    .footer-section p,
    .footer-section li {
        font-size: 11px;
    }
    
    .company-desc p {
        font-size: 11px;
    }
    
    .footer-nav-link {
        font-size: 11px;
    }
    
    .contact-text {
        font-size: 11px;
    }
    
    .footer-nav-item {
        margin-bottom: 8px;
    }
    
    .footer-bottom {
        padding: 12px 15px;
        margin-top: 6px;
    }
    
    .footer-bottom p {
        font-size: 10px;
    }
    
    .copyright-text {
        font-size: 9px;
    }
}

/* 媒体查询 - 1100px */
@media (max-width: 1100px) {
    .footer {
        padding: 20px 0 14px;
    }
    
    .footer-content {
        max-width: 900px;
        padding: 0 15px;
        gap: 18px;
    }
    
    .footer-content > .company-info {
        margin-right: 80px;
    }
    
    .footer .container {
        max-width: 100% !important;
    }
    
    .footer-title {
        font-size: 12px;
    }
    
    .footer-section h3 {
        font-size: 12px;
        margin-bottom: 8px;
    }
    
    .footer-section p,
    .footer-section li {
        font-size: 10px;
    }
    
    .company-desc p {
        font-size: 10px;
    }
    
    .footer-nav-link {
        font-size: 10px;
    }
    
    .contact-text {
        font-size: 10px;
    }
    
    .footer-nav-item {
        margin-bottom: 7px;
    }
    
    .footer-bottom {
        padding: 10px 15px;
        margin-top: 5px;
    }
    
    .footer-bottom p {
        font-size: 9px;
    }
    
    .copyright-text {
        font-size: 8px;
    }
}

/* 媒体查询 - 1000px */
@media (max-width: 1000px) {
    .footer {
        padding: 18px 0 12px;
    }
    
    .footer-content {
        max-width: 800px;
        padding: 0 15px;
        gap: 15px;
    }
    
    .footer-content > .company-info {
        margin-right: 60px;
    }
    
    .footer .container {
        max-width: 100% !important;
    }
    
    .footer-title {
        font-size: 11px;
    }
    
    .footer-section h3 {
        font-size: 11px;
        margin-bottom: 6px;
    }
    
    .footer-section p,
    .footer-section li {
        font-size: 9px;
    }
    
    .company-desc p {
        font-size: 9px;
    }
    
    .footer-nav-link {
        font-size: 9px;
    }
    
    .contact-text {
        font-size: 9px;
    }
    
    .footer-nav-item {
        margin-bottom: 6px;
    }
    
    .footer-bottom {
        padding: 8px 15px;
        margin-top: 4px;
    }
    
    .footer-bottom p {
        font-size: 8px;
    }
    
    .copyright-text {
        font-size: 7px;
    }
}