/**
 * 自定义页脚
 * 独立于 DZ common/footer 的 BlokeAI 底部
 */

.blk-footer {
    background: #e9ecef;
    color: #495057;
    margin-top: var(--blk-space-2xl);
    width: 100%;
}

.blk-footer-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 48px 24px 32px;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 32px;
}

/* 品牌区 */
.blk-footer-brand {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.blk-footer-logo {
    display: flex;
    align-items: center;
    gap: 8px;
}

.blk-footer-logo img {
    height: 28px;
    width: auto;
    max-width: 150px;
    object-fit: contain;
    filter: brightness(0) invert(1);
}

.blk-footer-desc {
    font-size: 14px;
    color: #6c757d;
    line-height: 1.6;
}

.blk-footer-social {
    display: flex;
    gap: 12px;
}

.blk-social-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(0, 0, 0, 0.05);
    color: #495057;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    text-decoration: none;
    transition: all var(--blk-transition);
}

.blk-social-icon:hover {
    background: #FF4D00;
    color: #fff;
}

/* 列 */
.blk-footer-col {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.blk-footer-col h4 {
    font-size: 16px;
    font-weight: 600;
    color: #212529;
    margin-bottom: 4px;
}

.blk-footer-col a {
    font-size: 14px;
    color: #6c757d;
    text-decoration: none;
    transition: color var(--blk-transition);
}

.blk-footer-col a:hover {
    color: #FF4D00;
}

/* 底部版权 */
.blk-footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 20px 24px;
}

.blk-footer-bottom-inner {
    max-width: 1280px;
    margin: 0 auto;
    text-align: center;
    font-size: 13px;
    color: #adb5bd;
}

.blk-footer-bottom-inner a {
    color: #6c757d;
    text-decoration: none;
}

.blk-footer-bottom-inner a:hover {
    color: #FF4D00;
}

/* 响应式 */
@media (max-width: 768px) {
    .blk-footer-inner {
        grid-template-columns: 1fr;
        padding: 32px 16px;
    }
    .blk-footer-bottom {
        padding: 16px;
    }
}