.billboard_list dl {width: calc(100%/4 - 2rem);background-color: #ffedec;margin: 1rem;border-radius: 1.5rem;padding: 1rem;text-align: center;}
.billboard_list dl dt  {font-size: 1.5rem;font-weight: 900;color: var(--group_title);border-bottom: 1px solid;padding: 0 0.25rem 0.25rem;position: relative;margin: auto auto 1rem;width: fit-content;}
.billboard_list dl dt::before {content: '✦';bottom: -18px;left: -18px;font-size: 1rem;position: relative;}
.billboard_list dl dt::after {content: '✦';bottom: -18px;right: -18px;font-size: 1rem;position: relative;}

@media screen and (max-width: 1200px) {
	.billboard_list dl {width: calc(100%/3 - 2rem);}
}

@media screen and (max-width: 767px) {
	.billboard_list dl {width: calc(100% - 2rem);}
}