/* 现代化简约页脚样式 */
.modern-footer {
    flex-shrink: 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    margin-top: 80px;
    position: relative;
    border-top: 1px solid rgba(245, 127, 23, 0.1);
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 60px 30px;
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 80px;
    align-items: start;
}

/* 品牌区域 */
.footer-brand-section {
    padding-right: 40px;
}

.brand-logo-wrapper {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.footer-logo {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    object-fit: cover;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.brand-text h3 {
    font-size: 22px;
    font-weight: 700;
    color: #F57F17;
    margin: 0 0 5px 0;
}

.brand-text p {
    font-size: 13px;
    color: #999;
    margin: 0;
    font-weight: 500;
}

.brand-tagline {
    font-size: 14px;
    line-height: 1.8;
    color: #666;
    margin: 0 0 30px 0;
}

.footer-stats-mini {
    display: flex;
    gap: 30px;
    margin-top: 30px;
}

.stat-mini {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.stat-number {
    font-size: 20px;
    font-weight: 700;
    color: #F57F17;
}

.stat-label {
    font-size: 12px;
    color: #999;
}

/* 链接区域 */
.footer-links-section {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

.footer-col h4 {
    font-size: 16px;
    font-weight: 600;
    color: #333;
    margin: 0 0 20px 0;
}

.footer-col a {
    display: block;
    font-size: 14px;
    color: #666;
    text-decoration: none;
    margin-bottom: 12px;
    transition: all 0.3s ease;
}

.footer-col a:hover {
    color: #F57F17;
    transform: translateX(5px);
}

/* 底部版权栏 */
.footer-bottom-bar {
    background: rgba(245, 127, 23, 0.03);
    border-top: 1px solid rgba(245, 127, 23, 0.1);
    padding: 25px 0;
}

.footer-bottom-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.copyright {
    font-size: 14px;
    color: #666;
    margin: 0;
}

.legal-info {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    font-size: 13px;
    color: #999;
}

.legal-info .separator {
    color: #ddd;
}

.legal-info a {
    color: #999;
    text-decoration: none;
    transition: color 0.3s ease;
}

.legal-info a:hover {
    color: #F57F17;
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #F57F17, #FF9800);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
    box-shadow: 0 4px 15px rgba(245, 127, 23, 0.3);
}

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

.back-to-top:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 6px 20px rgba(245, 127, 23, 0.4);
}

.back-to-top i {
    color: white;
    font-size: 20px;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .footer-brand-section {
        padding-right: 0;
    }
    
    .footer-links-section {
        gap: 30px;
    }
}

@media (max-width: 900px) {
    .footer-links-section {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px 30px;
    }
}

@media (max-width: 768px) {
    .modern-footer {
        display: none !important;
    }
    
    .back-to-top {
        display: none !important;
    }
}

@media (max-width: 600px) {
    .footer-content {
        padding: 40px 20px;
    }
    
    .footer-links-section {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .footer-stats-mini {
        flex-direction: column;
        gap: 15px;
    }
    
    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }
    
    .legal-info {
        justify-content: center;
    }
}