/* 页脚样式 */
.footer {
    background: #1a1a2e;
    color: #e0e0e0;
    padding: 4rem 5% 2rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-main {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-section h4 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    margin-bottom: 1.2rem;
    color: #ffffff;
    font-weight: 600;
    position: relative;
    padding-bottom: 0.8rem;
}

.footer-section h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: linear-gradient(90deg, #4a90d9, #c9a961);
    border-radius: 1px;
}

.footer-section h4 a {
    color: #ffffff;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section h4 a:hover {
    color: #4a90d9;
}

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

.footer-links li {
    margin-bottom: 0.6rem;
}

.footer-links a {
    color: #a0a0a0;
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    display: inline-block;
    position: relative;
    padding-left: 0;
}

.footer-links a:hover {
    color: #ffffff;
    padding-left: 8px;
}

.footer-links a::before {
    content: '';
    position: absolute;
    left: -12px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 3px 0 3px 4px;
    border-color: transparent transparent transparent #4a90d9;
    opacity: 0;
    transition: all 0.3s ease;
}

.footer-links a:hover::before {
    left: -10px;
    opacity: 1;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: #808080;
    margin: 0;
}

.footer-bottom a {
    color: #a0a0a0;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-bottom a:hover {
    color: #ffffff;
}

.footer-separator {
    margin: 0 0.5rem;
}

.footer-cybersecurity-icon {
    display: inline-block;
    vertical-align: middle;
    margin-right: 4px;
}

@media (max-width: 768px) {
    .footer-bottom p {
        display: flex;
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .footer-separator {
        display: none;
    }
}