/* Footer 样式 */
.footer {
    background-color: #f5f5f5;
    padding: 1px 0;
    font-size: 13.5px;
    color: #666;
    margin-top: 100px;
}
.os-footer {
    background-color: #ffffff;
    padding: 1px 0;
    font-size: 13.5px;
    color: #666;
    margin-top: 100px;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 30px 15px;
    position: relative;
}

/* 顶部链接 */
.footer-links {
    margin-bottom: 15px;
}

.footer-links a {
    color: #666;
    text-decoration: none;
    margin-right: 20px;
    font-size: 14px;
}

.footer-links a:hover {
    color: #333;
}

/* 底部信息 */
.footer-info {
    margin-bottom: 8px;
}

.footer-info span,
.footer-info a {
    color: #666;
    margin-right: 15px;
}

.footer-info a {
    text-decoration: none;
}

.footer-info a:hover {
    color: #333;
}

.divider {
    margin: 0 10px;
}

/* 社交媒体图标 */
.social-links {
    display: flex;
    gap: 15px;
    justify-content: flex-end;
    position: absolute;
    right: 20px;
    top: 46%;
    transform: translateY(-50%);
}

.social-link {
    width: 28px;
    height: 28px;
    opacity: 0.7;
    transition: opacity 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.social-link svg {
    width: 24px;
    height: 24px;
    fill: #666;
    transition: fill 0.3s;
}

.social-link:hover {
    opacity: 1;
}

.social-link:hover svg {
    fill: #333;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .footer {
        padding: 15px 0;
    }

    .footer-links a,
    .footer-info span,
    .footer-info a {
        display: block;
        margin: 5px 0;
    }

    .divider {
        display: none;
    }

    .social-links {
        position: static;
        justify-content: center;
        transform: none;
        margin-top: 15px;
    }
}

/* 社交媒体图标样式调整 */
.social-link.wechat,
.social-link.telegram {
    position: relative;
    cursor: pointer;
}

.qr-tooltip {
    display: none;
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    margin-bottom: 10px;
    background: #fff;
    padding: 10px;
    border-radius: 4px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
}

.qr-tooltip::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 50%;
    transform: translateX(-50%);
    border-width: 6px 6px 0;
    border-style: solid;
    border-color: #fff transparent transparent;
}

.qr-tooltip img {
    width: 120px;
    height: 120px;
    display: block;
}

.social-link.wechat:hover .qr-tooltip,
.social-link.telegram:hover .qr-tooltip {
    display: block;
}

/* 修改版权信息样式 */
.copyright {
    margin: 15px 0 0;
    padding-top: 5px;
    color: #979797;
    font-size: 12px;
    text-align: center;
    width: 100%;
    display: block;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

/* 移动端样式保持不变 */
@media (max-width: 768px) {
    .copyright {
        margin-top: 10px;
        padding-top: 10px;
    }

    .qr-tooltip {
        left: 50%;
        transform: translateX(-50%);
    }
}