/*	contents
============================== */
.contents { width: 100%; background: rgba(249, 249, 249, 1); padding: .5em 0; min-height: 500px;}
.contents h2 { display: block; width: 100%; max-width: 500px; margin: 0 auto; position: relative;}
.contents h2 .title_img { display: block; width: 100%; height: 0; padding-top: 20.588235294117647%; padding-top: calc(140 / 680 * 100%); background-repeat: no-repeat; -webkit-background-size: contain; background-size: contain; opacity: .1;}
.contents h2 .title_txt { width: 100%; text-align: center; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); -webkit- transform: translate(-50%, -50%); letter-spacing: .1em;}
.contents h2 .title_txt::before { content: '[ ';}
.contents h2 .title_txt::after { content: ' ]';}
.contents a { position: relative; z-index: 500;}

.unit { width: 94%; margin: 0 auto;}