.sub-tab {text-align: center; margin-bottom: 60px;}
.sub-tab ul {display: flex;flex-wrap:wrap;justify-content: center; margin: -15px;}
.sub-tab ul li {flex:1; display: table; min-height: 50px; margin: 15px; border: 1px solid #ddd; background-color: #fff;}
.sub-tab ul li a {display: table-cell; vertical-align:middle; color: #333; font-size: 20px; font-weight: 500; line-height: 1.3em; letter-spacing: -.03em;}
.sub-tab ul li.active {background-color: #085183; border-color:#085183;}
.sub-tab ul li.active a {color: #fff;}

.txt-blue {color: #085183;}


/* history */
.history .head {display: table; width: 100%; height: 450px; margin-bottom: 85px; background: no-repeat url("../images/sub/history_head.jpg") center center / cover;}
.history .head .cell {display: table-cell; vertical-align:bottom; padding: 15px; color: #fff; text-align: center;}
.history .head h3 {font-family: 'Jost', sans-serif; font-size: 40px; line-height: 1.3; font-weight: 500; opacity: .8;}

/* greetings */
.greetings {color: #333; background: no-repeat url("../images/sub/bg_greetings.png") right bottom; margin-bottom: 30px; padding-bottom: 70px;}
.greetings .title {margin-bottom: 80px;}
.greetings .title h3 {font-weight: 500; color: #555; font-size: 1.25em; line-height: 1.5; letter-spacing: -.03em; margin-bottom: 60px;}
.greetings .title h3 b {font-weight: 700;}
.greetings .title h3 strong {display: block; margin-top: 10px;}
.greetings .title p {font-size: 1.25em; line-height: 1.5; letter-spacing: -.03em; font-weight: 500;}
.greetings .title p span {font-weight: 600;}
.greetings .txt {}
.greetings .txt p {color: #454545; line-height: 1.625em; letter-spacing: -.03em; margin-bottom: 1.375em;}
.greetings .txt p:last-child {margin-bottom: 0;}
.greetings .txt p strong {font-size: 1.25em; font-weight: 500; line-height: 1.5;}
.greetings .txt .br {display: block;}

/* overview */
.overview {display: flex;flex-wrap:wrap; margin-bottom: -30px; padding-top: 25px; border-top: 1px solid #333;}
.overview dl {width: 28%; margin-bottom: 30px; font-size: 1.125em; line-height: 1.5; letter-spacing: -.03em; padding-right: 10px;}
.overview dl:nth-child(3n+1) {width: 44%;}
.overview dl dt {font-family: 'Jost', sans-serif; color: #333; font-weight: 700; }
.overview dl dt dd {color: #454545;}