/* =============================================
   页脚样式（美化版）
   ============================================= */

/* 页脚整体 */
.site-footer {
    position: relative;
    background: linear-gradient(135deg, #2c1810 0%, #3d2317 50%, #2c1810 100%);
    color: #c4a882;
    margin-top: 60px;
    font-size: 14px;
}

/* 顶部装饰边框 */
.footer-top-border {
    height: 4px;
    background: linear-gradient(90deg, #913500, #c4762e, #e6a23c, #c4762e, #913500);
}

/* 页脚容器 */
.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 48px 32px 32px;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1.2fr;
    gap: 40px;
}

/* 网站信息栏 */
.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #e6c9a8;
    font-size: 20px;
    font-weight: 600;
}

.footer-logo svg {
    color: #c4762e;
}

.footer-desc {
    font-size: 13px;
    line-height: 1.7;
    color: #a08060;
    margin: 0;
}

/* 社交媒体图标 */
.footer-social {
    display: flex;
    gap: 12px;
    margin-top: 8px;
}

.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(196, 168, 130, 0.1);
    color: #c4a882;
    text-decoration: none;
    transition: all 0.2s;
}

.social-icon:hover {
    background: #c4762e;
    color: #fff;
    transform: translateY(-2px);
}

/* 栏目标题 */
.footer-title {
    position: relative;
    font-size: 16px;
    font-weight: 600;
    color: #e6c9a8;
    margin: 0 0 20px 0;
    padding-bottom: 12px;
}

.footer-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, #913500, #c4762e);
    border-radius: 2px;
}

/* 链接列表 */
.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    color: #c4a882;
    text-decoration: none;
    font-size: 13px;
    transition: all 0.2s;
    display: inline-block;
    position: relative;
    padding-left: 0;
}

.footer-links a:hover {
    color: #e6c9a8;
    padding-left: 8px;
}

.footer-links a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 2px;
    background: #c4762e;
    transition: width 0.2s;
}

.footer-links a:hover::before {
    width: 4px;
}

/* 联系方式 */
.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: #a08060;
}

.footer-contact-item svg {
    flex-shrink: 0;
    color: #c4762e;
}

/* 二维码关注 */
.footer-qrcode {
    display: flex;
    gap: 20px;
}

.qrcode-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.qrcode-placeholder {
    width: 90px;
    height: 90px;
    border-radius: 8px;
    background: rgba(196, 168, 130, 0.1);
    border: 1px solid rgba(196, 168, 130, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #a08060;
    transition: all 0.2s;
}

.qrcode-placeholder:hover {
    border-color: #c4762e;
    color: #c4762e;
}

.qrcode-item span {
    font-size: 12px;
    color: #a08060;
}

/* 二维码实际图片 */
.qrcode-img {
    width: 90px;
    height: 90px;
    border-radius: 8px;
    object-fit: cover;
    border: 1px solid rgba(196, 168, 130, 0.2);
    transition: all 0.2s;
}

.qrcode-img:hover {
    border-color: #c4762e;
    transform: scale(1.05);
}

/* 底部版权栏 - 紧贴内容区 */
.footer-bottom {
    border-top: 1px solid rgba(196, 168, 130, 0.1);
    padding: 16px 0;
    background: rgba(0, 0, 0, 0.25);
    margin-top: 0;
}

.footer-bottom-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-copyright {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 13px;
    color: #a08060;
}

.footer-icp {
    font-size: 12px;
    color: #8a7050;
}

.footer-stats {
    font-size: 12px;
    color: #6a5a42;
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: #c4762e;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s;
    box-shadow: 0 4px 12px rgba(146, 53, 0, 0.3);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: #913500;
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(146, 53, 0, 0.4);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .footer-container {
        grid-template-columns: 1fr 1fr 1fr;
        gap: 32px;
    }
    
    .footer-brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    .footer-container {
        grid-template-columns: 1fr 1fr;
        gap: 28px;
        padding: 36px 20px 28px;
    }
    
    .footer-brand {
        grid-column: 1 / -1;
    }
    
    .footer-qrcode {
        gap: 16px;
    }
    
    .qrcode-placeholder {
        width: 80px;
        height: 80px;
    }
}

@media (max-width: 480px) {
    .footer-container {
        grid-template-columns: 1fr;
        gap: 28px;
    }
    
    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-qrcode {
        justify-content: center;
    }
}