@charset "utf-8";
/*------------------------------------------------------------------------------------------
*
*
    book.css
*
*
------------------------------------------------------------------------------------------ */
#wrap{
    text-align: center;
}

#contents_area{
    width: 100%;
    margin: 0 auto;
    overflow: hidden;
}

#book_wrap{
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: #000;
    position: relative;
    top: 0;
    left: 0;
}

#book_wrap .book_wrap_inner,
#book_wrap .outer,
#book_wrap .inner{
    width: 100%;
    height: 100%;
    min-height: 560px;
    transform-origin: 0px center;
    -webkit-transform-origin: 0px center;
    text-align: center;
    position: absolute;
    top: 0;
    left: 0;
    -webkit-perspective: 3000px;
    -moz-perspective: 3000px;
    perspective: 3000px;
}

.is_pc #book_wrap .book_wrap_inner,
.is_pc #book_wrap .outer,
.is_pc #book_wrap .inner{
    transform: translate3d(0, 0, 0);
    -webkit-transform: translate3d(0, 0, 0);
}

#book_wrap .inner{
    background-color: #000;
    background-image:url(../images/book/txt_bg_pc.jpg);
    background-repeat: no-repeat;
    background-position: center top;
    background-size: contain;
}

.is_sp #book_wrap .inner{
    background-image:url(../images/book/txt_bg_sp.jpg);
}

#book_wrap .pic{
    width: 100%;
    height: 100%;
    min-height: 560px;
    -webkit-backface-visibility: visible;
}

#book_wrap div .shadow{
    width: 100%;
    height: 200%;
    background: linear-gradient(90deg, rgba(0, 0, 0, .3), rgba(0, 0, 0, 0));
    opacity: 0;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
}

#book_wrap img{ width: 100%; height: auto;}
#book_wrap.v img{ width: auto; height: 100%;}

#book_wrap .box{
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 10;
}

#book_wrap .box .vertical{
    width: 100%;
    height: 100%;
    display: table;
    vertical-align: middle;
}

#book_wrap .box .vertical .btn_next_book{
    width: 100%;
    margin: 0 0 0 5px;
    text-align: center;
    position: absolute;
    bottom: 12%;
    left: 0;
}

#book_wrap .box .vertical .btn_next_book img{
    width: 22%;
    min-width: 90px;
}

/*
*
    #btm_content
*
*/
#btm_content{
    background-color: #000;
    text-align: center;
}

#btm_content .content_inner{
    text-align: left;
}



/*
*
    #book_nav
*
*/
#book_nav{
    width: 100%;
    text-align: center;
    position: absolute;
    bottom: 0;
    left: 0;
    z-index: 10000;
}

#book_nav .nav_inner{
    width: 100%;
    height: 70px;
    padding: 20px 0;
    background-color: #000;
    box-sizing: border-box;
    margin: 0 auto;
    display: block;
    position: relative;
}

#book_nav ul{
    letter-spacing: -.40em;
}

#book_nav li{
    margin: 0 6%;
    box-sizing: border-box;
    display: inline-block;
    text-align: center;
    cursor: pointer;
}

#book_nav li.btn_start{
    margin: 0;
    position: absolute;
    top: 20px;
    left: 4%;
}

#book_nav li.btn_voice{
    margin: 0;
    position: absolute;
    top: 20px;
    right: 4%;
}

#book_nav li:last-child{
    border: none;
}

#book_nav li img{
    width: auto !important;
    height: 30px !important;
    transition: opacity .1s ease .0s;
}

.is_pc #book_nav li img:hover,
.is_sp #book_nav li img.touch{
    opacity: .7;
    transition: opacity .15s ease .05s;
}

#book_nav li.off img{
    opacity: .4 !important;
    cursor: default;
    transition: opacity .25s ease;
}


/*
*
    .share_list
*
*/
.share_list{
    margin: 100px 0;
    text-align: center;
}

.share_list h3{
    margin: 0 0 25px 0;
}

.share_list h3 img{
    width: 79px;
    height: auto;
}

.share_list li{
    margin: 0 4%;
    display: inline-block;
}

.share_list li img{
    width: 50px;
    height: auto;
}


.btm_nav{
    margin: 0 0 60px 0;
    text-align: center;
}

.btm_nav li{
    margin: 0 4%;
    display: inline-block;
}

.btm_nav li img{
    width: auto;
    height: 16px;
}

.copyright{
    margin: 0 0 50px 0;
    text-align: center;
}

.copyright img{
    width: 260px;
    height: auto;
}

/* --------------------------------------------------------------------------------------------------------------
*
    max-width: 680px
*
-------------------------------------------------------------------------------------------------------------- */
@media screen and (max-width: 680px) {
#book_nav li{
    margin: 0 4%;
}

#book_nav li img{
    width: auto !important;
    height: 24px !important;
}

.share_list{
    margin: 40px 0 60px 0;
    text-align: center;
}

.share_list h3 img{
    width: 62px;
}

.btm_nav li{
    margin: 0 3%;
}
    
.share_list li img{
    width: 40px;
    height: auto;
}

.btm_nav li img{
    width: auto;
    height: 13px;
}

.copyright{
    margin: 0 0 40px 0;
    text-align: center;
}

.copyright img{
    width: 240px;
    height: auto;
}

}


/* --------------------------------------------------------------------------------------------------------------
*
    max-width: 480px
*
-------------------------------------------------------------------------------------------------------------- */
@media screen and (max-width: 480px) {
#book_nav li{
    margin: 0 4%;
}

#book_nav li img{
    width: auto !important;
    height: 15px !important;
}

.share_list{
    margin: 20px 0 40px 0;
    text-align: center;
}

.share_list h3 img{
    width: 48px;
}

.share_list li img{
    width: 34px;
    height: auto;
}

.btm_nav li{
    margin: 0 0 30px 0;
    display: block;
}

.btm_nav li:last-child{
    margin: 0;
}

.copyright{
    margin: 0 0 30px 0;
    text-align: center;
}

.copyright img{
    width: 200px;
    height: auto;
}
}