/* 底部信息 */
.footer {
    background: linear-gradient(135deg, #2c3e50 0%, #1a252f 100%);
    color: #fff;
    padding: 80px 0 40px;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #c41e3a, #8b0000, #c41e3a);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 50px;
    margin-bottom: 50px;
}

.footer-section h3 {
    font-size: 18px;
    margin-bottom: 25px;
    color: #fff;
    position: relative;
    padding-bottom: 12px;
}

.footer-section h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, #c41e3a, #8b0000);
    border-radius: 2px;
}

.footer-section p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    margin-bottom: 10px;
}

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

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

.footer-section ul li a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    transition: all 0.3s ease;
    display: inline-block;
}

.footer-section ul li a:hover {
    color: #fff;
    transform: translateX(5px);
}

.footer-section ul li a::before {
    content: '›';
    margin-right: 8px;
    color: #c41e3a;
}

.social-links {
    display: flex;
    gap: 12px;
    margin-top: 25px;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.social-links a:hover {
    background-color: #c41e3a;
    border-color: #c41e3a;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(196, 30, 58, 0.4);
}

.social-links i {
    font-size: 20px;
    color: #fff;
}

.footer-section h3 i {
    margin-right: 10px;
    color: #c41e3a;
}

.footer-section p i {
    margin-right: 10px;
    color: #c41e3a;
}

.footer-section ul li a i {
    font-size: 10px;
    transition: transform 0.3s ease;
}

.footer-section ul li a:hover i {
    transform: translateX(3px);
}

.footer-bottom p i {
    margin-right: 8px;
    color: #c41e3a;
}

.footer-links a i {
    margin-right: 8px;
    color: #c41e3a;
}

.footer-form {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.footer-form input {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    background-color: rgba(255, 255, 255, 0.05);
    color: #fff;
    font-size: 14px;
}

.footer-form input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.footer-form input:focus {
    outline: none;
    border-color: #c41e3a;
    background-color: rgba(255, 255, 255, 0.1);
}

.footer-form button {
    padding: 12px 24px;
    background: linear-gradient(135deg, #c41e3a 0%, #8b0000 100%);
    color: #fff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.footer-form button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(196, 30, 58, 0.4);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.footer-bottom p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
    margin: 0;
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #fff;
}

/* 响应式 */
@media (max-width: 992px) {
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .footer {
        padding: 60px 0 30px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-form {
        flex-direction: column;
    }
    
    .footer-form button {
        width: 100%;
    }
}