body, section, h2, h3, h4 {
    margin: 0;
    padding: 0;
}

body {
    background: #000;   
    color: #ddd;
    font-family: 'cwTeXHei', 'Play', 'Segoe UI', Microsoft JhengHei, '微軟正黑體', Arial, Helvetica, sans-serif;
}

h2 {
    font-size: 40px;
    line-height: 1.08654;
    color: #FF7200;
    font-weight: 200;
    margin-bottom: 20px;
}

h3 {
    font-size: 18px;
    line-height: 1.45;
    font-weight: 400;
    margin-bottom: 20px;
}  

h4 {
    font-weight: 300;
    font-size: 12px;
    line-height: 1.25em;
    color: #bbb;
}                  

.center{                 
    width: 1366px;
    margin: 0 auto;
    position: relative;
}


@media screen and (max-width: 1366px) {
    .center {
        width: 960px;
    }
    h2 {
        font-size: 30px;
    }
    h3 {
        font-size: 16px;
    }
}

@media screen and (max-width: 960px) {
    .center {
        width: 640px;
    }    
    h3 {        
        line-height: 1.3;
    }
}

@media screen and (max-width: 640px) {
    .center {
        width: 320px;
    }

    h2 {
        font-size: 20px;
    }
    h3 {
        font-size: 13px;
    }
}