* { box-sizing: border-box; }
html{
    margin:0;
    padding:0;
}
body{
    margin:0;
    padding:0;
    font-family: 'Montserrat', sans-serif;
    font-size: 12px;
    font-weight: 500;
}
.pc_main{
    position: absolute;
    top: 0px;
    left: 0px;
    right: 0px;
    bottom: 0px;
    background-image: url('bg3.jpg');
    background-repeat: no-repeat;
    background-position: left bottom;
    background-size: cover;
    background-color: black;
    background-attachment: fixed;
}
.pc_main .heading{
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    height: 100px;
    overflow: hidden;
}
.pc_main .heading .top_bar{
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    height: 50%;
    border-bottom:1px solid black;
    background-repeat: no-repeat;
    background-position: left top;
    background-size: auto 100%;
    background-color: black;
    box-shadow: 0em 0em .5em #000000;
    opacity: 0.75;
}

.pc_main .heading .plc_icon{
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    background-image: url('top.png');
    background-repeat: no-repeat;
    background-position: left top;
    background-size: auto 100%;
    height: 50px;
    width: 100%;
    float: left;
}

.pc_main .heading .sub_bar{
    position: absolute;
    left: 0;
    right: 0;
    top: 50%;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    -webkit-background-clip: padding-box; /* for Safari */
    background-clip: padding-box; /* for IE9+, Firefox 4+, Opera, Chrome */
    padding: 10px;
}
.pc_main .heading .sub_bar img{
    display: block;
    position: absolute;
    top: 8px;
    left: 15px;
}
.pc_main .heading .sub_bar .sc_text{
    display: block;
    position: absolute;
    top: 10px;
    left: 55px;
    font-weight: 700;
    font-size: 20px;
    line-height: 30px;
    color: #DDDDDD;
    text-shadow: 2px 2px 2px rgba(0,0,0,.3);
    margin-left: 8px;
    white-space: nowrap;
}

.pc_main .content{
    position: absolute;
    left: 0;
    right: 0;
    top: 100px;
    bottom: 60px;
    overflow-x: hidden;
}

.pc_main .chunk{
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(0, 0, 0, .7);
    -webkit-background-clip: padding-box; /* for Safari */
    background-clip: padding-box; /* for IE9+, Firefox 4+, Opera, Chrome */
    box-shadow: 0em 0em .2em #000000;
}

.pc_main .chunk img{
    display: block;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.pc_main .chunk .desc{
    font-size: 21px;
    font-style: italic;
    color: #FFFFFF;
    padding: 5px 5px 5px 0;
}
.pc_main .footing{
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 50px;
    overflow: hidden;
}
.pc_main .footing a{
    text-decoration: none;
    display: block;
    margin: 0 auto;
    font-weight: 700;
    font-size: 21px;
    width: 300px;
    text-align: center;
    color: #DDDDDD;
    text-shadow: 3px 5px 2px rgba(0,0,0,.3);
    background: rgba(0, 0, 0, 0.6);
    border: .4vmin solid rgba(0, 0, 0, .9);
    -webkit-background-clip: padding-box; /* for Safari */
    background-clip: padding-box; /* for IE9+, Firefox 4+, Opera, Chrome */
    cursor: pointer;
    border-radius: 5vw;
    box-shadow: .1em .1em .4em #000000;
    overflow: hidden;
    padding: 5px;;
}

.pc_main .footing a:hover{
    text-shadow: 3px 5px 2px rgba(0,0,0,.3);
    background: rgba(0, 0, 0, 0.8);
    border: .4vmin solid rgba(0, 0, 0, .9);
}

@media only screen and (max-width: 998px) {
    .pc_main .chunk .desc{
        font-size: 16px;
    }
}

@media only screen and (max-width: 767px) {
    .pc_main .chunk .desc{
        font-size: 14px;
    }
}

@media only screen and (max-width: 480px) {
    .pc_main .chunk .desc{
        font-size: 14px;
    }
}

@media only screen and (max-width: 400px) {
    .pc_main .chunk .desc{
        font-size: 11px;
    }
}