/* ================= Footer 样式 ================= */
.site-footer {
    width: 100%;
    height: 363px;
    background-color: #54C8E8;
    color: #ffffff;
    position: relative; /* 用于定位回到顶部按钮 */
    font-family: "Microsoft YaHei", sans-serif; /* 假设字体，可根据项目调整 */
    padding: 64px 0;
    box-sizing: border-box;
}

.footer-container {
    width: 1200px;
    margin: 0 auto;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-sizing: border-box;
}

/* --- 上部分：关注我们 --- */
.footer-top {
    display: flex;
    align-items: center;
}

.footer-label {
    font-size: 20px;
    margin-right: 20px;
    font-weight: normal;
}

.social-icons {
    display: flex;
    gap: 15px; /* 图标之间的间距 */
}

.icon-wrapper {
    position: relative;
    width: 32px;
    height: 32px;
    cursor: pointer;
}

.icon-wrapper img {
    width: 32px;
    height: 32px;
    display: block;
}

/* 二维码浮窗 */
.qr-popup {
    display: none;
    position: absolute;
    bottom: 40px; /* 浮窗在图标上方 */
    left: 50%;
    transform: translateX(-50%);
    width: 160px;
    height: 160px;
    background: #fff;
    padding: 5px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    border-radius: 4px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 10;
}

.qr-popup img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* 鼠标移入显示浮窗 */
.icon-wrapper:hover .qr-popup {
    display: block;
    opacity: 1;
    visibility: visible;
    bottom: 30px; /* 轻微上浮动画效果 */
    transform: translateX(-100%);
}

/* --- 中间部分：左中右结构 --- */
.footer-middle {
    display: flex;
    justify-content: space-between;
    /* 
       左边: 535px 
       中间: 535px 
       右边: 130px 
       总和: 1200px 
    */
}

.footer-col {
    display: flex;
}

.col-left {
    width: 535px;
}

.col-center {
    width: 535px;
}

.col-right {
    width: 126px;
    display: flex;
    align-items: flex-start; /* Logo 顶部对齐 */
}

.footer-title {
    font-size: 20px;
    margin: 0 0 10px 0; /* 标题下方间距 */
    font-weight: bold;
    color: #fff;
    width: 140px;
}

.footer-desc {
    font-size: 14px;
    margin: 0 0 5px 0; /* 描述行间距 */
    color: #fff;
    line-height: 1.5;
    width: 100%;
    display: inline-block;
}

.footer-logo {
    width: 130px; /* 限制右侧容器宽度，图片自适应或固定 */
    height: auto;
    display: block;
}

/* --- 底部：版权信息 --- */
.footer-bottom {
    padding-bottom: 20px;
    font-size: 14px;
    color: #fff;
}

.footer-bottom p {
    margin: 0;
}

/* --- 回到顶部按钮 --- */
.back-to-top {
    position: fixed;
    right: 60px; 
    bottom: 70px;
    width: 48px;
    height: 48px;
    cursor: pointer;
    z-index: 100;
    transition: transform 0.3s;
    display: none;
}

.back-to-top:hover {
    transform: translateY(-5px);
}

.back-to-top img {
    width: 48px;
    height: 48px;
    display: block;
}

/* 移动端适配简单处理（可选） */
@media (max-width: 1200px) {
    .footer-container {
        width: 100%;
        padding: 0 20px;
        box-sizing: border-box;
    }
    
    .footer-middle {
        flex-direction: column;
        gap: 20px;
    }
    
    .col-left, .col-center, .col-right {
        width: 100%;
    }
    
    .back-to-top {
        right: 20px; /* 移动端靠屏幕右侧 */
    }
}
.footer-desc-wrapper{
    flex: 1;
}
.footer-line{
    width: 1200px;
    height: 2px;
    border-radius: 0px 0px 0px 0px;
    background: #fff;
    opacity: 0.2;
}