h1 {
    margin: 123px auto;
    text-align: center;
    font-family: Stencil, arial;
    font-size: 45px;
    margin-bottom: 10px;
    font-weight: 500;
}

#main_info {
    display: flex;
    align-items: flex-start;
}

#title_img_box {
    width: 100%;
    height: 100%;
}

#title_img {
    max-width: 99%;
    margin: 3px;
}

#main_info_right {
    padding: 0 20px;
    width: 50%;
}

#main_info_left {
    width: 50%;
}

.simple {
    display: block;
    width: 100%;
    border-bottom: 0.5px solid silver;
    padding-left: 10px;
}

#bkg_blog {
    position: fixed;
    z-index: -1;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
}

.frame {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #c0c0c06b;
    border: 0.5px #acacac solid;
    border-left: none;
    cursor: pointer;
    margin: 0;
    padding: 0;
    flex-direction: column;
}

.info_title {
    text-decoration: underline;
    text-decoration-style: dashed;
    text-decoration-color: #e19639;
    font-weight: 600;
}

.info_txt {
    font-style: italic;
    margin: -13px 0 20px 20px;
    text-align: justify;
}

.gal_item {
    max-width: var(--tn_size);
    max-height: var(--tn_size);
}

#gal, #v_gal {
    width: 100%;
    display: flex;
    margin: 30px 0;
    flex-wrap: wrap;
}

article {
    text-align: justify;
    backdrop-filter: blur(3px);
    line-height: 1.5;
    font-size: 20px;
}

.frame img {
    border-radius: 0;
}

#title_caption {
    text-align: center;
}

#b1 {
    margin-top: -20px;
}

.item_box {
    cursor: pointer;
}

@media (max-width: 800px) {
    .item_title {
        line-height: 1;
        font-size: 24px;
    }
    body {
        overflow-x: hidden;
        width: 100%;
        font-weight: 400;
    }
    #bkg_blog {
        top: 0;
        left: 0;
        transform: none;
        width: unset;
        opacity: 0.5;
    }
    h1 {
        line-height: 1;
        margin-bottom: 50px;
        font-size: 29px;
    }
    #main_info {
        flex-direction: column;
        width: 96%;
        margin: 0 auto;
    }
    #main_info_left {
        width: 100%;
    }
    #main_info_right {
        padding: 0;
        width: 100%;
    }
    #item_list {
        max-height: 500px;
        margin-top: 50px;
        width: 90%;
    }
    .item_box {
        flex-direction: column;
    }
    legend {
        font-size: 20px;
        font-weight: 600;
    }
    .item_title {
        line-height: 1.2;
        font-size: 24px;
    }
    .item_img_box {
        width: 100%;
        height: var(--blog_img_height);
        max-width: 400px;
        max-height: 400px;
        background-color: #efefefb3;
        backdrop-filter: blur(3px);
    }
    .item_img_box img {
        max-width: 97%;
        max-height: 97%;
    }
    .item_info {
        width: 90%;
        margin-left: 0;
    }
    article {
        font-size: 17px;
    }
}