.footer {
    margin-top: 60px;
    padding: 10px 0;
}

.advantages {
    padding: 0 0 10px;
    margin-bottom: 20px;
}

.advantage-list {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 15px;
}

.advantage-item {
    flex: var(--z-base);
    min-width: 160px;
    padding: 15px 10px;
    text-align: center;
}

.advantage-item .icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.5s ease;
    margin-bottom: 10px;
    border-radius: 50%;
    font-size: 24px;
    height: 40px;
    width: 40px;
}

.advantage-item:hover .icon {
    transform: rotate(360deg);
}

.advantage-item:nth-child(1) .icon {
    background-color: rgba(0, 123, 255, 0.1);
    color: var(--color-primary);
}

.advantage-item:nth-child(2) .icon {
    background-color: rgba(40, 167, 69, 0.1);
    color: #28a745;
}

.advantage-item:nth-child(3) .icon {
    background-color: rgba(255, 107, 107, 0.1);
    color: var(--color-primary-light);
}

.advantage-item:nth-child(4) .icon {
    background-color: rgba(255, 193, 7, 0.1);
    color: #ffc107;
}

.advantage-item:nth-child(5) .icon {
    background-color: rgba(111, 66, 193, 0.1);
    color: #6f42c1;
}

.advantage-item h3 {
    font-size: 15px;
    font-weight: var(--font-weight-semibold);
    margin-bottom: 6px;
    color: #212529;
}

.advantage-item p {
    font-size: var(--font-size-caption);
    line-height: var(--line-height-h3);
    color: #6c757d;
}

.footer .content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    border-bottom: 1px solid #f1f3f5;
    padding-bottom: 10px;
    margin-bottom: 10px;
    gap: 30px;
}

.link-column {
    flex: var(--z-base);
    min-width: 140px;
    margin-left: 20px;
}

.link-column h4 {
    position: relative;
    display: inline-block;
    margin-bottom: 15px;
    padding-bottom: var(--space-sm);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-card-title);
    color: #212529;
}

.link-column h4::after {
    content: '';
    position: absolute;
    background-color: var(--color-primary);
    transition: width 0.3s ease;
    height: var(--space-2xs);
    width: 25px;
    bottom: 0;
    left: 0;
}

.link-column:hover h4::after {
    width: 100%;
}

.link-column ul {
    list-style: none;
}

.link-column ul li {
    margin-bottom: 10px;
}

.link-column ul li a {
    display: inline-block;
    text-decoration: none;
    transition: all 0.2s ease;
    font-size: var(--font-size-btn);
    color: #6c757d;
}

.link-column ul li a:hover {
    color: var(--color-primary);
    font-weight: bold;
    transform: translateX(3px);
}

.qrcode-section {
    display: flex;
    align-items: flex-start;
    gap: 25px;
}

.qrcode-item {
    text-align: center;
}

.qrcode-item .qrcode-wrap {
    width: 100px;
    height: 100px;
    overflow: hidden;
    margin-bottom: var(--space-sm);
    border-radius: 6px;
    border: 1px solid #e9ecef;
    box-shadow: var(--shadow-sm);
    background-color: var(--color-bg-card);
    transition: all 0.3s ease;
    padding: 5px;
}

.qrcode-item:hover .qrcode-wrap {
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.qrcode-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-sm);
}

.qrcode-item p {
    font-size: var(--font-size-btn);
    font-weight: var(--font-weight-medium);
    color: #495057;
}

.copyright {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    border-radius: 0 0 20px 20px;
    position: relative;
    text-align: center;
}

.copyright-text {
    font-size: var(--font-size-btn);
    padding: 10px 0;
    cursor: default;
    color: #868e96;
}

.icp-info {
    text-decoration: none;
    font-size: var(--font-size-btn);
    color: #868e96;
}