/* 07 FAQ */

.section.section-faq {
    padding-top: clamp(5.5rem, 11vw, 9rem);
    padding-bottom: clamp(6.5rem, 14vw, 11rem);
    background-color: var(--color-bg);
    color: var(--faq-ink, var(--color-main));
}

.faq-inner {
    width: 100%;
    max-width: 64rem;
    margin-inline: auto;
}

.faq-head {
	position: relative;
	width: 100%;
	margin: 0;
	padding-top: 0;
	text-align: center;
}

.faq-head .top-section-title {
    margin: 0 0 var(--section-heading-gap);
    color: var(--color-main);
    font-size: var(--section-heading-size);
    font-weight: 700;
    letter-spacing: 0.02em;
    line-height: 1.5;
    text-align: center;
}

.faq-head .top-section-title-accent::first-letter {
    color: var(--color-highlight);
}

.faq-en {
    position: absolute;
    top: -0.18em;
    left: 50%;
    z-index: 0;
    margin: 0;
    font-weight: 500;
    font-size: clamp(5.5rem, 14vw, 12rem);
    line-height: 0.78;
    letter-spacing: -0.05em;
    color: color-mix(in srgb, var(--faq-ink, var(--color-main)) 9%, transparent);
    text-transform: uppercase;
    pointer-events: none;
    user-select: none;
    transform: translateX(-50%);
}

.faq-title {
    position: relative;
    z-index: 1;
    margin: 0;
    font-size: clamp(1.7rem, 3.4vw, 2.65rem);
    font-weight: 500;
    line-height: 1.45;
    letter-spacing: 0.06em;
}

.faq-list {
    width: 100%;
    margin: 0;
    padding: 0;
    border-top: 1px solid color-mix(in srgb, var(--faq-ink, var(--color-main)) 14%, transparent);
}

.faq-item {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 0.35rem 1.5rem;
    padding: 1.55rem 0 1.65rem;
    border-bottom: 1px solid
        color-mix(in srgb, var(--faq-ink, var(--color-main)) 14%, transparent);
}

.faq-mark {
    display: flex;
    align-items: flex-start;
    margin: 0;
    font-weight: 500;
    font-size: clamp(1.625rem, calc(1.25rem + 1.563vw), 2rem);
    line-height: 1;
    letter-spacing: -0.04em;
    color: #9aa9b4;
}

.faq-question {
    margin: 0.15rem 0 0;
    font-size: clamp(1.125rem, calc(1rem + 0.416vw), 1.25rem);
    font-weight: 700;
    line-height: 1.55;
    letter-spacing: 0.02em;
}

.faq-answer {
    max-width: none;
    margin: 0.7rem 0 0;
    font-size: 1rem;
    line-height: 1.8;
    letter-spacing: 0.02em;
    color: var(--color-text);
}

.diagnosis-page .faq-answer a,
.operation-page .faq-answer a {
    color: var(--color-accent);
    text-decoration: underline;
    text-underline-offset: 0.15em;
}

.faq-body {
    width: 100%;
    max-width: none;
    padding-right: 5rem;
    box-sizing: border-box;
}

.faq-list,
.faq-item {
    border-color: var(--color-border);
}

@media (max-width: 699px) {
    .faq-item {
        grid-template-columns: 1.7rem minmax(0, 1fr);
        gap: 0 0.7rem;
        padding: 1.35rem 0 1.45rem;
    }

    .faq-body {
        display: contents;
    }

    .faq-mark {
        grid-column: 1;
        grid-row: 1;
        display: flex;
        align-items: center;
        width: 1.7rem;
        height: calc(1.05rem * 1.55);
    }

    .faq-body {
        padding-right: 0;
    }

    .faq-question {
        grid-column: 2;
        grid-row: 1;
        margin-top: 0;
    }

    .faq-answer {
        grid-column: 1 / -1;
    }
}

/* 暗背景での共通FAQ。通常のトップページ表示は変えない。 */
.section-faq[data-theme="dark"] {
    --faq-ink: var(--color-bg);
    background-color: var(--color-main);
    color: var(--color-bg);
}
.section-faq[data-theme="dark"] .faq-en { color: color-mix(in srgb, var(--color-bg) 18%, transparent); }
.section-faq[data-theme="dark"] .faq-mark { color: color-mix(in srgb, var(--color-bg) 55%, transparent); }
.section-faq[data-theme="dark"] .faq-answer { color: color-mix(in srgb, var(--color-bg) 75%, transparent); }