.container {
    width: 100%;
    max-width: 1200px;
    margin: 50px auto;

    padding: 3px;
    box-sizing: border-box;
}
.page_title {
    padding: 0 10px;
}
.item_container {
    overflow: hidden;
    margin: 30px 0;
} 
/* ////////////////////////////////////////////////// */

ul.item_container {
    overflow: hidden;
}
li.item {
    width: calc((100% - (7px * 2 * 3)) / 3 - 0.01px);
    margin: 7px;
    float: left;
    /* padding: 10px 5px; */
    box-sizing: border-box;
    border-radius: 5px;
    box-shadow: 0 1px 4px 0 rgba(0,0,0,.3);
    overflow: hidden;
    position: relative;
}
.thum_nail {
    text-align: center;
    padding-bottom: 80%;
    position: relative;
    overflow: hidden;

    background: #c2c9d1;
}

.thum_nail img {
    width: 100%;
    position: absolute;
    top: 50%;
    left: 50%;
    /* transform: translate(-50%, -50%) scale(1.5); */
    transform: translate(-50%, -50%) scale(1.2)
}

 
.size2 .thum_nail {
    /* background: #fff; */
}
.size2 img {
    /* transform: translate(-50%, -60%) scale(1) !important; */
    transform: translate(-50%, -50%) scale(1) !important;
}


.desc {
    width: 100%;
    height: 4em; 
    box-sizing: border-box;
    padding: 0 10px;

    position: absolute;
    left: 0;
    bottom: 0;

    cursor: pointer;
    background: linear-gradient(180deg,rgb(255, 255, 255 ,0),#e5e5e5);

    transition: all 0.3s;
}
li.item:hover .desc {
    height: 100%;
    background: rgba(255,255,255,0.97);
    padding: 10px 20px;
}
.name {
    line-height: 4em;
    color: #444;
    font-size: 16px;
    transition: all 0.3s;
}
li.item:hover .name {
    font-weight: bold;
    font-size: 18px;
}
.page_desc {
    opacity: 0;
    line-height: 1.3;
    transition: all 0.3s;
    font-size: 14px;
}
li.item:hover .page_desc {
    opacity: 1;
    line-height: 22px;
    transition: all 0.3s;
    font-size: 14px;
}
/* .btn_go {
    display: none; 
} */
.btn_go {
    display: inline-block;
    width: 100%;
    height: 100%;
    /* margin: 0 auto; */
    /* background: #1596f9; */
    padding: 10px 0px;
    border-radius: 10px;
    /* text-decoration: underline; */
    font-size: 12px;
}
 

.show_at_lg {
    display: block;
}
.show_at_sm {
    display: none;
}


@media screen and (max-width: 1024px) { 
    /* li.item > a {
        pointer-events: none;
    } */
}

@media screen and (max-width: 960px) { 
    li.item {
        width: calc((100% - (5px * 2 * 2)) / 2 - 0.01px);
        float: left;
        margin: 10px 5px;
    }
}
@media screen and (max-width: 600px) { 
    li.item:hover .desc {
        padding: 10px 10px;
    }
    
    li.item .name {
        line-height: 2.5em;
        font-size: 1em;
    }
    li.item:hover .name {
        font-weight: bold;
        font-size: 1em;
    }
    li.item:hover .page_desc {
        line-height: 22px;
        font-size: 0.8em;
    }
    .desc {
        height: 3em;
    }
}
@media screen and (max-width: 480px) { 
    li.item {
        /* width: 100%; */
        width: calc((100% - (5px * 2 * 2)) / 2 - 0.01px);
        margin: 5px;
    }
    .desc {
        height: 2.5em;
        font-size: 12px;
    }
    .btn_go {
        padding: 0;
    }
    .work_day {
        display: none;
    }
    .show_at_lg {
        display: none;
    }
    .show_at_sm {
        display: block;
    }
}
@media screen and (max-width: 320px) {  
    li.item {
        width: calc(100% - (2px * 2) - 0.01px);
        margin: 5px 2px;
    }
    .s_name { display: none}
    li.item:hover .name {
        font-weight: bold;
        font-size: 1.3em;
    }
    li.item:hover .page_desc {
        line-height: 22px;
        font-size: 1em;
    }
 
}