.faq-hero {
    padding: 100px 48px 80px;
    text-align: center;
    border-bottom: 1px solid var(--color-border);
}

.faq-hero__inner {
    max-width: 900px;
    margin: 0 auto;
}

.faq-hero__sub {
    font-family: var(--font-japanese);
    font-size: 1.1rem;
    color: var(--color-text-muted);
    margin-bottom: 16px;
    letter-spacing: 0.08em;
}

.faq-hero__title {
    font-family: var(--font-serif);
    font-size: clamp(2.8rem, 5vw, 4.2rem);
    font-weight: 400;
    line-height: 1.15;
    color: var(--color-text);
    margin-bottom: 24px;
}

.faq-hero__scroll-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 40px;
    background: var(--color-text);
    color: #ffffff;
    font-family: var(--font-serif);
    font-size: 1.1rem;
    font-weight: 400;
    letter-spacing: 0.06em;
    border: none;
    border-radius: 2px;
    cursor: pointer;
    line-height: 1;
    transition: background 0.2s ease;
}

.faq-hero__scroll-btn:hover {
    background: var(--color-accent);
}

.faq-body {
    padding: 80px 48px 120px;
}

.faq-body__inner {
    max-width: 1100px;
    margin: 0 auto;
}

.faq-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 72px;
}

.faq-filter-btn {
    padding: 11px 28px;
    border-radius: 999px;
    border: 1.5px solid var(--color-border);
    background: transparent;
    font-family: var(--font-sans);
    font-size: 1.45rem;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all 0.2s ease;
    letter-spacing: 0.03em;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    vertical-align: middle;
}

.faq-filter-btn:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    background: #eef2ff;
}

.faq-filter-btn.active {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: #ffffff;
}

.faq-accordion {
    display: flex;
    flex-direction: column;
    gap: 64px;
}

.faq-group__label {
    font-family: var(--font-serif);
    font-size: 1.15rem;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.faq-group__label-jp {
    font-family: var(--font-japanese);
    font-size: 1rem;
    letter-spacing: 0.05em;
    text-transform: none;
    color: var(--color-text-muted);
    opacity: 0.6;
}

.faq-item {
    border-bottom: 1px solid var(--color-border);
}

.faq-item:first-of-type {
    border-top: 1px solid var(--color-border);
}

.faq-item__question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 28px 16px;
    background: none;
    border: none;
    text-align: left;
    font-family: var(--font-serif);
    font-size: 2.5rem;
    font-weight: 400;
    color: var(--color-text);
    cursor: pointer;
    transition: background 0.2s, color 0.2s, padding 0.2s;
    line-height: 1.3;
    border-radius: 4px;
}

.faq-item__question:hover {
    color: var(--color-accent);
    background: #f0f4ff;
    padding-left: 20px;
    padding-right: 20px;
}

.faq-item--open .faq-item__question {
    color: var(--color-accent);
    background: #f0f4ff;
    padding-left: 20px;
    padding-right: 20px;
}

.faq-item__icon {
    flex-shrink: 0;
    font-size: 1.7rem;
    font-weight: 300;
    color: var(--color-text-muted);
    line-height: 1;
    transition: color 0.2s;
    width: 32px;
    text-align: center;
}

.faq-item--open .faq-item__icon {
    color: var(--color-accent);
}

.faq-item__answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}

.faq-item__answer p {
    padding: 8px 20px 28px;
    font-size: 2rem;
    color: var(--color-text-muted);
    line-height: 1.8;
    margin: 0;
}

.faq-item__answer a {
    color: var(--color-accent);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.faq-cta {
    margin-top: 100px;
    padding: 72px 64px;
    background: var(--color-bg-card);
    border-radius: 4px;
    text-align: center;
}

.faq-cta__label {
    font-family: var(--font-japanese);
    font-size: 1rem;
    color: var(--color-text-muted);
    margin-bottom: 14px;
    letter-spacing: 0.06em;
}

.faq-cta__title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 3vw, 2.8rem);
    font-weight: 400;
    color: var(--color-text);
    margin-bottom: 16px;
}

.faq-cta__desc {
    font-size: 1.05rem;
    color: var(--color-text-muted);
    margin-bottom: 32px;
    line-height: 1.7;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
}

.faq-cta__btn {
    display: inline-block;
    padding: 15px 44px;
    background: var(--color-accent);
    color: #ffffff;
    font-family: var(--font-sans);
    font-size: 1rem;
    letter-spacing: 0.04em;
    border-radius: 2px;
    text-decoration: none;
    transition: background 0.2s ease;
}

.faq-cta__btn:hover {
    background: var(--color-accent-dark);
    color: #ffffff;
}

@media (max-width: 900px) {
    .faq-body {
        padding: 64px 32px 96px;
    }

    .faq-hero {
        padding: 72px 32px 60px;
    }

    .faq-body__inner {
        max-width: 100%;
    }

    .faq-cta {
        padding: 56px 40px;
    }
}

@media (max-width: 600px) {
    .faq-hero {
        padding: 56px 16px 48px;
    }

    .faq-body {
        padding: 48px 16px 72px;
    }

    .faq-cta {
        padding: 40px 24px;
    }

    .faq-item__question {
        font-size: 1.15rem;
        padding: 20px 12px;
    }

    .faq-item__answer p {
        font-size: 0.9375rem;
        padding: 8px 12px 24px;
    }
}