.container {
    overflow-x: hidden;
}

.header {
    height: 800px;
}

.header .bg {
    width: 100%;
    height: 800px;
    /* -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover; */
    background-repeat: repeat-x;
    background-position: 0 0;
    position: absolute;
    z-index: 0;
    top: 0;
    left: 0;
    opacity: 0;
    transition: opacity 1000ms ease-in-out;
    -moz-transition: opacity 1000ms ease-in-out;
    -webkit-transition: opacity 1000ms ease-in-out;
}

.app {
    margin-top: 20px;
}

.app .link-app-store {
    position: absolute;
    background: url(../images/ct-app-store-link.png) no-repeat 0 0;
    top: 400px;
    left: 750px;
    width: 197px;
    height: 69px;
    -moz-border-radius: 8px;
    -webkit-border-radius: 8px;
    border-radius: 8px;
    /* -moz-box-shadow: 0 0 24px rgba(104,199,255, 0.7);
    -webkit-box-shadow: 0 0 24px rgba(104,199,255, 0.7);
    box-shadow: 0 0 24px rgba(104,199,255, 0.7);*/
}

    .app .link-app-store:hover {
        background-position: -197px 0;
    }

.app .center {
    position: relative;
}
    .app .pic {
        width: 1408px;
        height: 635px;
        background: url(../images/ct-app.png) 0 0 no-repeat;
        position: absolute;
        top: 0;
        left: -60px;
    }

.section .intro {
    position: relative;
}

.section .title {
    font-size: 24px;
    margin-bottom: 15px;
}

.section .desc {
    font-size: 16px;
}

.section-0 {
}

    .section-0 .center {
        height: 690px;
        position: relative;
    }

    .section-0 .pic {
        background: url(../images/ct-what-is.png) 0 0 no-repeat;
        position: absolute;
        top: 70px;
        right: -35px;
        width: 417px;
        height: 620px;
    }

    .section-0 .intro {
        padding: 335px 0 0 20px;
        width: 483px;
        text-align: right;
    }

    .section-0 .desc {
        margin-bottom: 18px; 
    }

.section-1 {
    text-align: center;
    margin-top: 140px;
}

    .section-1 .center {
        height: 560px;
        position: relative;
    }

    .section-1 .pic {
        position: absolute;
        top: 220px;
        left: 50%;
        background: url(../images/ct-keyboard.png) center 0 no-repeat;
        width: 1502px;
        height: 412px;
        margin-left: -751px;
    }

.section-2 {
    text-align: center;
    margin-top: 160px;
}

    .section-2 .center {
        height: 835px;
        position: relative;
    }

    .section-2 .pic {
        position: absolute;
        top: 200px;
        left: 50%;
        background: url(../images/ct-table.png) 0 0 no-repeat;
        width: 990px;
        height: 635px;
        margin-left: -495px;
    }

.section-3 {
    text-align: center;
    margin-top: 140px;
}

    .section-3 .center {
        height: 584px;
        position: relative;
    }

    .section-3 .pic {
        position: absolute;
        top: 120px;
        left: 50%;
        background: url(../images/ct-paper-transpose.png) 0 0 no-repeat;
        width: 1168px;
        height: 464px;
        margin-left: -584px;
    }

.section-4 {
    text-align: center;
    margin-top: 140px;
}

    .section-4 .center {
        height: 535px;
        position: relative;
    }

    .section-4 .pic {
        position: absolute;
        top: 150px;
        left: 50%;
        margin-left: -476.5px;
        width: 953px;
        height: 385px;
        background: url(../images/ct-pdf.png) 0 0 no-repeat;
    }

.section-5 {
    margin-top: 220px;
}

    .section-5 .center {
        height: 623px;
        position: relative;
    }

    .section-5 .pic {
        position: absolute;
        top: 0;
        left: 10px;
        width: 958px;
        height: 493px;
        background: url(../images/ct-app-bottom.png) 0 0 no-repeat;
    }

    .section-5 .link-app-store {
        position: absolute;
        top: 310px;
        right: 8px;
        background: url(../images/ct-app-store-link.png) no-repeat 0 0;
        width: 197px;
        height: 69px;
    }

    .section-5 .link-app-store:hover {
        background-position: -197px 0;
    }