.bkt {
    height: auto;
    overflow: hidden;
    margin-top: 100px;
}
.bkt span {
    display: block;
    float: left;
    margin-right: 20px;
    color: #555;
}
.bkt span:nth-child(1) {
    font-size: 2.05rem;
    font-family: Arial, Helvetica, sans-serif;
    line-height: 80px;
    color: #002553;
}
.bkt span:nth-child(2) {
    font-size: 1.6rem;
    line-height: 75px;
}

.bkbox {
    width: calc(100% - 330px);
    height: auto;
    overflow: hidden;
    margin: 0 auto;
}

.secban {
    height: auto;
    overflow: hidden;
    position: relative;
}
.secban img {
	width: 100%;
	height: auto;
    display: block;
    visibility: hidden;
}
.secbant {
    position: absolute;
    z-index: 10;
    color: #002856;
    visibility: hidden;
}
.secbant span {
    display: block;
    line-height: 160%;
}
.secbant span:nth-child(1) {
    font-size: 2.3rem;
    font-weight: bold;
}
.secbant span:nth-child(2) {
    font-size: 1rem;
    font-family: Arial, Helvetica, sans-serif;
}
.bant1 {
    left: 165px;
    top: 120px;
    text-align: left;
}
.bant2 {
    right: 165px;
    top: 120px;
    text-align: right;
}
.bant3 {
    width: 100%;
    left: 0;
    top: 150px;
    text-align: center;
}
.bant4 {
    left: 165px;
    bottom: 150px;
    text-align: left;
}
.bant5 {
    right: 165px;
    bottom: 150px;
    text-align: right;
}
.txtshadow {
    text-shadow: 0 1px 1px #000;
}

.secbar {
    width: 100%;
    height: 45px;
    line-height: 45px;
    border-bottom: 1px solid #999;
    margin-top: 50px;
}
.secbar a {
    display: inline-block;
    vertical-align: top;
    margin-right: 30px;
    font-size: 1rem;
    position: relative;
}
.secbar a.on {
    font-weight: bold;
    color: #002856;
}
.secbar a.on::after {
    content: '';
    width: 100%;
    height: 3px;
    background: #002856;
    position: absolute;
    left: 0;
    bottom: -1px;
}

@media screen and (max-width: 1680px) {
    .bkt {
        margin-top: 60px;
    }
    .bkbox {
        width: calc(100% - 270px);
    }
    .secbant span:nth-child(1) {
        font-size: 2rem;
    }
    .secbant span:nth-child(2) {
        font-size: 0.875rem;
    }
    .bant1 {
        left: 135px;
        top: 100px;
    }
    .bant2 {
        right: 135px;
        top: 100px;
    }
    .bant3 {
        top: 130px;
    }
    .bant4 {
        left: 135px;
        bottom: 120px;
    }
    .bant5 {
        right: 135px;
        bottom: 120px;
    }
    .secbar {
		margin-top: 40px;
	}
}
@media screen and (max-width: 1440px) {
    .bkbox {
        width: calc(100% - 240px);
    }
    .secbant span:nth-child(1) {
        font-size: 1.8rem;
    }
    .secbant span:nth-child(2) {
        font-size: 0.75rem;
    }
    .bant1 {
        left: 120px;
        top: 80px;
    }
    .bant2 {
        right: 120px;
        top: 80px;
    }
    .bant3 {
        top: 120px;
    }
    .bant4 {
        left: 120px;
        bottom: 100px;
    }
    .bant5 {
        right: 120px;
        bottom: 100px;
    }
    .secbar {
		margin-top: 30px;
	}
}
@media screen and (max-width: 1280px) {
    .bkbox {
        width: calc(100% - 160px);
    }
    .secbant span:nth-child(1) {
        font-size: 1.8rem;
    }
    .secbant span:nth-child(2) {
        font-size: 0.75rem;
    }
    .bant1 {
        left: 80px;
        top: 60px;
    }
    .bant2 {
        right: 80px;
        top: 60px;
    }
    .bant3 {
        top: 100px;
    }
    .bant4 {
        left: 80px;
        bottom: 80px;
    }
    .bant5 {
        right: 80px;
        bottom: 80px;
    }
    .secbar {
		margin-top: 20px;
	}
}
@media screen and (max-width: 1024px) {
    .bkbox {
        width: calc(100% - 60px);
    }
    .bant1 {
        left: 40px;
        top: 50px;
    }
    .bant2 {
        right: 40px;
        top: 50px;
    }
    .bant3 {
        top: 80px;
    }
    .bant4 {
        left: 40px;
        bottom: 60px;
    }
    .bant5 {
        right: 40px;
        bottom: 60px;
    }
}