/* ===== 全站统一页脚样式 - 深蓝金商务版 ===== */
:root {
    --navy: #0A1A2F;
    --gold: #B8860B;
    --light-gold: #D4AF37;
    --white: #FFFFFF;
    --transition: all 0.25s ease;
}

/* 页脚主容器 */
.page-footer {
    background-color: var(--navy);
    color: rgba(255, 255, 255, 0.9);
    padding: 60px 0 30px;
    border-top: 2px solid var(--gold);
    width: 100%;
}

.footer-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    margin-bottom: 40px;
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
    padding: 0 30px;
}

@media (min-width: 576px) {
    .footer-container {
        grid-template-columns: repeat(2, 1fr);
        padding: 0 20px;
    }
}

@media (min-width: 992px) {
    .footer-container {
        grid-template-columns: repeat(4, 1fr);
        gap: 40px;
    }
}

/* 页脚列 */
.footer-column h3 {
    font-size: 18px;
    margin-bottom: 20px;
    padding-bottom: 10px;
    position: relative;
    color: white;
    font-weight: 600;
}

.footer-column h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background-color: var(--gold);
}

.footer-column p {
    font-size: 15px;
    margin-bottom: 12px;
    display: flex;
    align-items: flex-start;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.footer-column ul {
    list-style: none;
}

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

.footer-column ul li a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 15px;
    transition: var(--transition);
    display: inline-block;
    padding: 4px 0;
}

.footer-column ul li a:hover {
    color: var(--gold);
    transform: translateX(5px);
}

.footer-column i {
    margin-right: 12px;
    margin-top: 4px;
    min-width: 16px;
    color: var(--gold);
}

/* 公司描述文字 */
.company-desc {
    color: rgba(255, 255, 255, 0.7);
    margin-top: 16px;
    font-size: 15px;
    line-height: 1.6;
}

/* 社交链接 */
.social-links {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 20px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    transition: var(--transition);
    font-size: 18px;
    border: 1px solid transparent;
    text-decoration: none;
}

.social-links a:hover {
    background-color: var(--gold);
    color: var(--navy);
    border-color: var(--gold);
}

/* 版权区域 */
.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(184, 134, 11, 0.3);
    color: rgba(255, 255, 255, 0.6);
    font-size: 13px;
    max-width: 1280px;
    margin: 0 auto;
    padding-left: 30px;
    padding-right: 30px;
}

@media (max-width: 768px) {
    .copyright {
        padding-left: 20px;
        padding-right: 20px;
    }
    
    .social-links a:active {
        background-color: var(--gold);
        color: var(--navy);
    }
    
    .footer-column ul li a:active {
        color: var(--gold);
    }
}

@media (max-width: 375px) {
    .page-footer {
        padding: 40px 0 20px;
    }
    
    .footer-container {
        gap: 30px;
    }
}