html {
    font-family: "Noto Sans JP", serif;
    font-optical-sizing: auto;
    font-style: normal;
    line-height: 1.5;
}

main {
    max-width: 640px;
    margin: 0 auto;
    box-shadow: 0 0 10px #0000005e;
}

ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

/* テキスト */
:root {
    --color-key: #1c2185;
    --color-accent: #e44866;
    --color-marker: #dbdbf4;
    --color-bg: #f8f8f5;
    --color-bg-brown: #f8f8f5;
}

/* Sticky */
.sticky {
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 640px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    z-index: 1000;
}

.sticky__tel_num {
    position: absolute;
    top: 7.5vw;
    left: 15vw;
    font-size: 3.6vw;
    color: #1b1f84;
    font-weight: bold;
}
@media screen and (min-width:641px) {
    .sticky__tel_num {
        top: 48px;
        left: 96px;
        font-size: 23px;
    }
}

/* CTA */
.cta {
    position: relative;
}

.cta__link {
    position: absolute;
    top: 84.8%;
    left: 50%;
    transform: translateX(-50%);
    width: 93%;
}

/* QA */
.qa {
    background-color: #059cc1;
    padding: 0 20px;
}
.qa li {
    border-bottom: 1px solid #fff;
}
.qa__title {
    position: relative;
    color: #fff;
    font-size: 20px;
    font-weight: bold;
    padding: 30px 0 30px 50px;
}

.qa__title::before {
    content: '＋';
    font-size: 25px;
    font-weight: 100;
    position: absolute;
    top: 50%;
    right: 20px;
    transform: translateY(-50%);
}

.open .qa__title::before {
    content: 'ー';
}

.qa__title::after {
    content: '';
    display: block;
    width: 30px;
    height: 30px;
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    background-image: url('./../img//q.png');
    background-repeat: no-repeat;
    background-size: contain;
}

.qa__body {
    margin: 0 auto;
    display: grid;
    grid-template-rows: 0fr;
    transition: 0.3s ease;
    color: #fff;
}

.open .qa__body {
    border-top: 1px solid #fff;
    grid-template-rows: 1fr;
}

.qa__body__inner {
    overflow: hidden;
}

.qa__body__inner__content {
    padding: 20px 20px 20px 50px;
    position: relative;
}

.qa__body__inner__content::before {
    content: '';
    display: block;
    width: 30px;
    height: 30px;
    position: absolute;
    left: 10px;
    top: 20px;
    background-image: url('./../img//a.png');
    background-repeat: no-repeat;
    background-size: contain;
}