.youtube_video_main_box {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
}

.youtube_video_title {
    width: 100%;
    font-family: var(--youtube_video_font_family);
    font-weight: var(--youtube_video_font_weight);
    font-size: var(--youtube_video_title_pc_font_size);
    border-bottom: 1px solid rgb(51 51 51);
    margin-bottom: 20px;
}

.youtube_video_title-once {
    position: relative;
    height: fit-content;
    cursor: pointer;
    transition: 0.5s;
}

.youtube_video_image {
    object-fit: cover;
    width: 100%;
    height: 100%;
}

.youtube_video_title-once:hover {
    transform: translateY(-10px);
}

i.youtube_video_image-iconfont {
    transform: rotate(72deg);
}

.youtube_video_image-iconfont {
    padding: 27px 0 0 10px;
    transition: 0.5s;
}

.youtube_video_main_box {
    padding: 0 20px;
}

.youtube_video_image-iconfont-box {
    position: absolute;
    display: flex;
    justify-content: end;
    align-items: end;
    top: 0;
    height: 100%;
    background: #000;
    width: 100%;
    transition-duration: .5s;
    opacity: 0;
    background: linear-gradient(to top, rgb(0 0 0 / 80%), rgb(255 255 255 / 9%));
}

.youtube_video_image-iconfont-box:hover {
    opacity: 1;
}

@media screen and (max-width:767px) {
    .youtube_video_title {
        font-size: var(--youtube_video_title_m_font_size);
        margin-bottom: 10px;
    }
}