/* 页脚 */
.site-footer {
    background-color: #f8fafc;
    border-top: 1px solid #e8ecf1;
    padding: 48px 0 0;
}

.footer-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 32px;
}

.footer-main {
    display: flex;
    gap: 64px;
    padding-bottom: 36px;
    border-bottom: 1px solid #e8ecf1;
    justify-content: space-between;
}

.footer-logo-side {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
    padding-top: 4px;
}

.footer-logo-img {
    width: 56px;
    height: 56px;
    object-fit: contain;
}

.footer-logo-name {
    font-size: 15px;
    font-weight: 700;
    color: #1a2332;
    white-space: nowrap;
}

.footer-links-side {
    display: flex;
    gap: 56px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.footer-col {
    min-width: 120px;
}

.footer-col-title {
    font-size: 14px;
    font-weight: 700;
    color: #1a2332;
    margin: 0 0 14px;
}

.footer-col a {
    display: block;
    font-size: 13px;
    color: #5a6a7a;
    text-decoration: none;
    padding: 4px 0;
    transition: color 0.15s ease;
}

.footer-col a:hover {
    color: #1a73e8;
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 0;
    flex-wrap: wrap;
    gap: 8px;
}

.footer-copyright {
    font-size: 13px;
    color: #94a3b8;
    margin: 0;
}

.footer-icp {
    font-size: 13px;
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.15s ease;
}

.footer-icp:hover {
    color: #5a6a7a;
}

/* 暗色模式 */
body.dark-mode .site-footer {
    background-color: #0d1117;
    border-top-color: #1e2530;
}

body.dark-mode .footer-main {
    border-bottom-color: #1e2530;
}

body.dark-mode .footer-logo-name {
    color: #e2e8f0;
}

body.dark-mode .footer-col-title {
    color: #e2e8f0;
}

body.dark-mode .footer-col a {
    color: #8896a6;
}

body.dark-mode .footer-col a:hover {
    color: #4da3ff;
}

body.dark-mode .footer-copyright {
    color: #4a5568;
}

body.dark-mode .footer-icp {
    color: #4a5568;
}

body.dark-mode .footer-icp:hover {
    color: #8896a6;
}

/* 响应式 */
@media (max-width: 768px) {
    .footer-main {
        flex-direction: column;
        gap: 28px;
    }

    .footer-logo-side {
        flex-direction: row;
        gap: 12px;
    }

    .footer-logo-img {
        width: 40px;
        height: 40px;
    }

    .footer-links-side {
        gap: 32px 48px;
    }

    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }
}

@media (max-width: 480px) {
    .footer-container {
        padding: 0 20px;
    }

    .footer-links-side {
        gap: 24px 36px;
    }
}