/* Footer Styles - Modern Minimalist */
.footer {
    background-color: var(--color-bg-dark);
    color: var(--color-white);
    margin-top: auto;
    padding-top: var(--spacing-lg);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md) var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--color-white);
    margin-bottom: 1.5rem;
    position: relative;
    display: inline-block;
}

.footer-section h4 {
    font-family: var(--font-primary);
    font-size: 1rem;
    color: rgba(255,255,255,0.9);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-section p {
    color: rgba(255,255,255,0.6);
    line-height: 1.8;
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

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

.footer-section ul li {
    margin-bottom: 0.8rem;
}

.footer-section ul li a {
    color: rgba(255,255,255,0.6);
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 0.95rem;
}

.footer-section ul li a:hover {
    color: var(--color-white);
    padding-left: 5px; /* 悬停时轻微右移 */
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.footer-bottom-left p {
    color: rgba(255,255,255,0.4);
    margin: 0;
    font-size: 0.85rem;
}

.footer-bottom-right {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.footer-bottom-right a {
    color: rgba(255,255,255,0.4);
    text-decoration: none;
    font-size: 0.85rem;
    transition: color 0.3s ease;
}

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

/* Newsletter Form */
.newsletter-form {
    display: flex;
    gap: 0.5rem;
    margin-top: 1.5rem;
}

.newsletter-form input[type="email"] {
    flex: 1;
    min-width: 0;
    padding: 0.8rem 1rem;
    border: 1px solid rgba(255,255,255,0.1);
    background-color: rgba(255,255,255,0.05);
    color: var(--color-white);
    font-family: var(--font-primary);
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
}

.newsletter-form input[type="email"]:focus {
    outline: none;
    border-color: var(--color-accent);
    background-color: rgba(255,255,255,0.1);
}

.newsletter-form button {
    padding: 0.8rem 1.2rem;
    background-color: var(--color-accent);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.3s ease;
}

.newsletter-form button:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-2px);
}

/* Responsive Design */
@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
}