/* ==========================================================================
   Page: FAQ (よくある質問)
   ========================================================================== */

/* Utility
   -------------------------------------------------------------------------- */
.u-mt-10 { margin-top: 10px; }
.u-mt-60 { margin-top: 60px; }
.u-mb-60 { margin-bottom: 60px; }
.u-text-sm { font-size: 13px; color: var(--color-text-light); }

/* FAQ Navigation
   -------------------------------------------------------------------------- */
.page-faq .faq-nav {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}
.page-faq .faq-nav__link {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    padding: 12px 24px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 14px;
    transition: var(--transition-base);
}
.page-faq .faq-nav__link i {
    color: var(--color-brand);
    font-size: 16px;
}
.page-faq .faq-nav__link:hover {
    border-color: var(--color-brand);
    color: var(--color-brand);
    background-color: #f0f9ff;
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
}

/* FAQ Container & Category
   -------------------------------------------------------------------------- */
.page-faq .faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.page-faq .faq-category {
    margin-bottom: 60px;
    scroll-margin-top: 120px; /* アンカーリンクの位置調整 */
}
.page-faq .faq-category:last-child { margin-bottom: 0; }

.page-faq .faq-category__title {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-brand-dark);
    border-bottom: 2px solid var(--color-brand-light);
    padding-bottom: 15px;
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.page-faq .faq-category__title i {
    font-size: 24px;
    color: var(--color-brand);
}

/* FAQ Item (Details/Summary)
   -------------------------------------------------------------------------- */
.page-faq .faq-item {
    margin-bottom: 15px;
    background: white;
    border-radius: 8px;
    border: 1px solid var(--color-border);
    transition: var(--transition-base);
}
.page-faq .faq-item:hover {
    border-color: var(--color-brand-light);
    box-shadow: 0 4px 10px rgba(0,0,0,0.03);
}

.page-faq .faq-details[open] {
    background-color: #fbfdff; /* 開いた時の背景色 */
}

/* Summary (Question) */
.page-faq .faq-summary {
    display: flex;
    align-items: flex-start; /* 長文質問対応 */
    padding: 20px;
    cursor: pointer;
    list-style: none; /* デフォルトの三角を消す */
    position: relative;
}
.page-faq .faq-summary::-webkit-details-marker { display: none; }

.page-faq .faq-q {
    flex-shrink: 0;
    font-family: "Helvetica Neue", Arial, sans-serif;
    font-weight: 700;
    font-size: 18px;
    color: var(--color-brand);
    margin-right: 15px;
    line-height: 1.5;
}

.page-faq .faq-question {
    flex-grow: 1;
    font-weight: 700;
    font-size: 16px;
    line-height: 1.6;
    color: #1e293b;
    padding-right: 30px; /* アイコン分の余白 */
}

/* Icon (Plus/Minus Animation) */
.page-faq .faq-icon {
    position: absolute;
    top: 24px;
    right: 20px;
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}
.page-faq .faq-icon::before,
.page-faq .faq-icon::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    background-color: var(--color-brand);
    transition: transform 0.3s ease;
    transform: translate(-50%, -50%);
}
.page-faq .faq-icon::before { width: 14px; height: 2px; } /* 横棒 */
.page-faq .faq-icon::after { width: 2px; height: 14px; } /* 縦棒 */

/* Open State Icon */
.page-faq .faq-details[open] .faq-icon::after {
    transform: translate(-50%, -50%) rotate(90deg); /* 縦棒を回転させて横棒にする */
    opacity: 0; /* または消す */
}

/* Content (Answer) */
.page-faq .faq-content {
    overflow: hidden;
    /* アコーディオンアニメーションはCSSだけでは完ぺきではないが、
       details[open]時のスタイルとして簡易的に記述 */
}

.page-faq .faq-content__inner {
    padding: 0 20px 25px 53px; /* Qの文字分インデント */
    font-size: 15px;
    line-height: 1.8;
    color: var(--color-text);
}
@media (max-width: 768px) {
    .page-faq .faq-content__inner { padding: 0 20px 20px 20px; }
}