@charset "utf-8";

/***************************************************************************
Media Queries
****************************************************************************/

@media only screen and (max-width: 768px) {
}

/***************************************************************************
case_study
****************************************************************************/

#case_study {
	margin-bottom: 40px;
}
.case_box {
    display: flex;
    background: linear-gradient(135deg, #68d1c4 0%,#5bc5cb 100%);
	overflow: hidden;	/*アニメーション時に、ブラウザ横スクロール表示防ぐ*/
}
.case_box .box {
    width: 50%;
	padding: 50px 0px 50px 0px;
}
.case_box .bg_white {
    background-color: #FFFFFF;
	text-align: center;
}
.case_box .bg_blue {
    display: flex;
    align-items: center;
}
.case_box .case_exp {
    background-color: #FFFFFF;
	padding: 30px;
}
#case_01 .case_exp,#case_03 .case_exp {
    margin-right: 50px;
}
#case_02 .case_exp {
    margin-left: 50px;
}
.case_box .exp_ttl {
    font-size: 34px;
	line-height: 1.2;
    font-weight: bold;
    margin-bottom: 20px;
    letter-spacing: 0.05em;
}

@media only screen and (max-width: 768px) {
.case_box {
	flex-direction: column;
}
.case_box .box {
    width: 100%;
	padding: 25px 0px 25px 0px;
}
#case_01 .case_exp,#case_03 .case_exp {
    margin-right: 25px;
}
#case_02 .case_exp {
    margin-left: 25px;
}
.case_box .bg_white {
    width: 100%;
	padding: 25px;
}
#case_02 .bg_white {
    order: 2;
}
#case_02 .bg_blue {
    order: 1;
}
.case_box .exp_ttl {
    font-size: 24px;
    margin-bottom: 15px;
}
}

/***************************************************************************
bottom_nav
****************************************************************************/

#bottom_nav {
    max-width: 1200px;
    margin: 0px auto 40px auto;
	display: flex;
	justify-content: space-between;
}
#bottom_nav .box {
    position: relative;
    width: 30%;
}
#bottom_nav .box a {
    text-decoration: none;
}
#bottom_nav .box a img {
    transition: opacity 0.3s ease-in-out;
}
#bottom_nav .box:hover a img {
    opacity: 0.6;
}

@media screen and (max-width: 640px) {
#bottom_nav {
    width: 100%;
}
#bottom_nav .box {
    width: 95.3125%;
    float: right;
    padding-bottom: 25px;
    margin-right: 0px !important;
}
}

.sam_box {
	opacity: 0;
	transition-duration : 2s;
}
.fade_in {
	opacity: 1;
}
#bottom_nav .box:nth-child(2) .sam_box {
	transition-delay: 1s;
}
#bottom_nav .box:nth-child(3) .sam_box {
	transition-delay: 2s;
}

#bottom_nav .ov_box {
	position: relative;
	margin-top: -20%;
    left: -10%;
    overflow: hidden;
    padding: 30px 0px 0px 0px;
}
#bottom_nav .ov_box .inner {
    min-width: 305px;
    min-height: 180px;
    margin-left: 30px;
    color: #FFFFFF;
}
#bottom_nav .ov_box .inner .ttl {
    font-size: 24px;
    font-weight: bold;
    line-height: 1.2em;
    margin-bottom: 25px;
}
#bottom_nav .ov_box .inner .ttl span {
    font-size: 30px;
}
#bottom_nav .ov_box .inner .line {
    width: 70px;
    height: 1px;
    background-color: #FFFFFF;
    margin-bottom: 25px;
}
#bottom_nav .ov_box .inner .en {
    font-weight: bold;
    font-size: 28px;
    font-family: 'Roboto Condensed', sans-serif;
}

.ov_box {
	transition-duration : 1s;
    width: 0%;
}
.fade_left {
    width: 335px !important;
}
#bottom_nav .box:nth-child(1) .ov_box {
	transition-delay: 0.5s;
    background-color: rgba(103,177,202,0.85);
}
#bottom_nav .box:nth-child(2) .ov_box {
	transition-delay: 1.5s;
    background-color: rgba(103,202,126,0.85);
}
#bottom_nav .box:nth-child(3) .ov_box {
	transition-delay: 2.5s;
    background-color: rgba(231,174,90,0.85);
}

@media screen and (max-width: 640px) {
#bottom_nav {
	display: block;
}
#bottom_nav .ov_box {
	margin-top: -27%;
    left: 0px;
    padding: 7% 0px 7% 0px;
}
#bottom_nav .ov_box .inner {
    min-width: 320px;
    width: 100%;
    min-height: inherit;
    margin-left: 6.5%;
}
#bottom_nav .ov_box .inner .ttl {
    font-size: 18px;
    margin-bottom: 10px;
}
#bottom_nav .ov_box .inner .ttl span {
    font-size: 26px;
}
#bottom_nav .ov_box .inner .line {
    margin-bottom: 15px;
}
#bottom_nav .ov_box .inner .en {
    font-size: 24px;
}
.fade_left {
    width: 69% !important;
}
#bottom_nav .box .sam_box {
	transition-delay: 1s !important;
}
#bottom_nav .box .ov_box {
	transition-delay: 1s !important;
}
}