@charset "utf-8";

.acbox {
    width: auto;
    font-size: 0px;
    margin: 0 10px
}

.acbox label {
    width: auto;
    font-size: 16px;
    font-weight: 700;
    text-align: left;
    position: relative;
    display: block;
    background: #f3f4f5;
    padding: 8px;
    border-radius: 4px;
    cursor: pointer;
    color: #000
}

.acbox label:hover {
    background: #f3f4f5
}

.acbox input {
    display: none
}

.acbox label:after {
    color: #000;
    content: "▼";
    position: absolute;
    top: 50%;
    right: 15px;
    margin-top: -0.5em;
}

.acbox input:checked ~ label::after {
    content: "▲"
}

.acbox div {
    height: 0;
    overflow: hidden;
    opacity: 0;
    transition: .15s
}

.acbox input:checked ~ div {
    height: auto;
    padding: 18px;
    border-radius: 0;
    background: #f3f4f5;
    opacity: 1;
	line-height: 1.5em;
}

.acbox input:checked ~ label {
    background: #f3f4f5
}

.acbox-under {
    font-size: 15px;
    color: #555
}

@media screen and (max-width:479px) {
    .acbox label {
        width: 100%;
        font-size: 12px;
        padding: 8px 30px 8px 8px
    }

    .acbox-under {
        font-size: 12px
    }
}