/* ===== Footer Styles ===== */
.footer {
    background: var(--black);
    color: var(--white);
    padding: var(--space-xxl) 0 var(--space-sm);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.footer-brand h3 {
    font-size: 24px;
    margin-bottom: var(--space-sm);
}

.footer-brand p {
    color: #CCCCCC;
    line-height: 1.8;
    margin-bottom: var(--space-md);
}

/* 新增：投资信息徽章 */
.footer-investment {
    margin: var(--space-md) 0;
    animation: fade-in-up 0.6s ease-out 0.3s both;
}

.investment-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    background: linear-gradient(135deg, rgba(46, 91, 186, 0.2), rgba(123, 63, 242, 0.2));
    border: 1px solid rgba(46, 91, 186, 0.3);
    color: #E8F0FF;
    padding: var(--space-xs) var(--space-sm);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: default;
}

.investment-badge:hover {
    background: linear-gradient(135deg, rgba(46, 91, 186, 0.3), rgba(123, 63, 242, 0.3));
    border-color: rgba(46, 91, 186, 0.5);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(46, 91, 186, 0.2);
}

.investment-badge i {
    width: 16px;
    height: 16px;
    color: #FFA500;
}

.investment-badge a {
    color: #fcfbfb;
}

.footer-social {
    display: flex;
    gap: var(--space-sm);
}

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    transition: all 0.2s ease;
    text-decoration: none;
}

.social-link:hover {
    background: var(--primary-blue);
    transform: translateY(-2px);
}

.footer-column h4 {
    margin-bottom: var(--space-md);
    font-size: 16px;
    color: var(--white);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-links a {
    color: #CCCCCC;
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-links a:hover {
    color: var(--white);
}

.footer-bottom {
    padding-top: var(--space-sm);
    border-top: 1px solid #333333;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.footer-copyright {
    color: #999999;
}

.footer-copyright p {
    margin: 0;
}

.footer-legal {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.footer-legal a {
    color: #999999;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s ease;
}

.footer-legal a:hover {
    color: var(--white);
}

/* ===== Responsive Footer ===== */
@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
        text-align: center;
    }
    
    .footer-social {
        justify-content: center;
    }
    
    .footer-investment {
        text-align: center;
    }
}

@media (max-width: 768px) {
    .footer {
        padding: var(--space-xl) 0 var(--space-lg);
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-legal {
        justify-content: center;
    }
    
    .footer-column h4 {
        font-size: 14px;
    }
    
    .footer-links a {
        font-size: 14px;
    }
    
    .investment-badge {
        font-size: 12px;
        padding: 6px 12px;
    }
}