.fixed-left-ad {
    position: fixed;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    z-index: 999;
    width: 300px;
    transition: all 0.3s ease;
}
.fixed-left-ad img {
    max-width: 100%;
    height: auto;
}
/* 关闭按钮样式 */
.fixed-left-ad-close {
    position: absolute;
    top: 0;
    right: 0;
    width: 24px;
    height: 24px;
    background: rgba(0, 0, 0, 0.5);
    color: #fff;
    text-align: center;
    line-height: 24px;
    font-size: 16px;
    cursor: pointer;
    z-index: 1000;
    border-radius: 0 0 0 5px;
}
/* 移动端样式增强 */
@media (max-width: 1025px) {
    .fixed-left-ad {
        width: 120px;
    }
    .fixed-left-ad-close {
        width: 20px;
        height: 20px;
        line-height: 20px;
        font-size: 20px;
    }
}
/* 小屏幕电脑适配 */
@media (min-width: 1200px) and (max-width: 1500px) {
    .fixed-left-ad {
        width: 200px !important;
    }
}
/* 特小屏幕电脑适配 */
@media (min-width: 0px) and (max-width: 1200px) {
    .fixed-left-ad {
        width: 150px !important;
    }
}
/* 悬浮效果 - 鼠标悬停时显示完整尺寸 */
.fixed-left-ad:hover {
    width: 300px;
}