.footer {
    background: #333333;
    padding: 50px 0 30px;
    color: #fff;
}

.footer .footer_box {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.footer .footer_cont {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
    gap: 60px;
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid #4D5358;
}

.footer .footer_section h3 {
    font-size: 16px;
    margin-bottom: 20px;
    color: #fff;
    font-weight: 600;
    text-transform: uppercase;
}

.footer .footer_section ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer .footer_section ul li {
    margin-bottom: 12px;
}

.footer .footer_section ul li a {
    color: #DDE1E6;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
}

.footer .footer_section ul li a:hover {
    color: #fff;
}

/* Logo区域 */
.footer .footer_logo {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    width: 100%;
    max-width: 120px;
}

.footer .footer_logo img {
    max-width: 120px !important;
    max-height: 40px !important;
    width: auto !important;
    height: auto !important;
    border-radius: 8px;
    object-fit: contain;
    display: block;
}

/* 社交媒体链接 */
.footer .social_links {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

.footer .social_links a {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.3s;
}

.footer .social_links a:hover {
    opacity: 0.7;
}

.footer .social_links a img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: brightness(0) invert(1);
}

/* 联系信息区域 */
.footer .footer_contact h3 {
    margin-bottom: 15px;
}

.footer .footer_contact p {
    color: #DDE1E6;
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 8px;
}

.footer .footer_contact a {
    color: #DDE1E6;
    text-decoration: none;
}

.footer .footer_contact a:hover {
    color: #fff;
}

/* 底部版权信息 */
.footer .footer_bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    color: #DDE1E6;
    font-size: 13px;
}

.footer .footer_bottom_left {
    display: flex;
    gap: 20px;
}

.footer .footer_bottom a {
    color: #DDE1E6;
    text-decoration: none;
    transition: color 0.3s;
}

.footer .footer_bottom a:hover {
    color: #fff;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .footer .footer_cont {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .footer .footer_cont {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .footer .footer_bottom {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }

    .footer .footer_bottom_left {
        flex-direction: column;
        gap: 10px;
    }
}