.big-banner{padding-top:21px;padding-bottom:20px}.big-banner_image{display:block;text-align:center}.big-banner_image a{display:inline-block;text-decoration:none}.big-banner_image img{max-width:100%;width:auto;height:auto}.big-banner_image .banner_sp{display:inline-block}.big-banner_image .banner_pc{display:none}@media (min-width: 750px){.big-banner{padding-top:37px;padding-bottom:69px}.big-banner_image a{transition:all .2s}.big-banner_image a:hover{opacity:.9}.big-banner_image .banner_sp{display:none}.big-banner_image .banner_pc{display:inline-block}}