/* ============================================================
 *  KT CLINIC — Phase 3-D アーカイブ共通 CSS
 *  archive-faq / archive-news / archive-campaign / single-news
 *
 *  Phase 3-D / 2026-05-25
 *  - .kt-faq / .kt-news / .kt-campaign の3スコープ
 *  - 共通プレフィックス：.kt-archive-* （見出し・タブ・CTA等）
 * ============================================================ */

.kt-faq,
.kt-news,
.kt-campaign {
    --c-text: #1A1F2E;
    --c-sub: #2A3142;
    --c-meta: #5A6373;
    --c-light: #888;
    --c-border: #E8EAED;
    --c-border-soft: #F0F1F3;
    --c-bg-soft: #F7F8FA;
    --c-bg-softer: #FAFAFA;
    --c-gyn: #E08AA0;
    --c-gyn-deep: #C16A82;
    --c-gyn-soft: #FBECF0;
    --c-derm: #7DC9A8;
    --c-derm-deep: #56AC85;
    --c-derm-soft: #E8F6EE;
    --c-cos: #C9A96E;
    --c-cos-deep: #9C7E47;
    --c-cos-soft: #F7F1E3;

    --font-sans: 'Noto Sans JP', sans-serif;
    --font-en: 'Inter', sans-serif;

    color: var(--c-text);
    font-family: var(--font-sans);
    font-weight: 400;
    line-height: 1.7;
}
.kt-faq *, .kt-news *, .kt-campaign *,
.kt-faq *::before, .kt-news *::before, .kt-campaign *::before,
.kt-faq *::after, .kt-news *::after, .kt-campaign *::after { box-sizing: border-box; }
.kt-faq a, .kt-news a, .kt-campaign a { color: inherit; text-decoration: none; }
.kt-faq img, .kt-news img, .kt-campaign img { display: block; max-width: 100%; height: auto; }
.kt-faq ul, .kt-news ul, .kt-campaign ul,
.kt-faq ol, .kt-news ol, .kt-campaign ol { padding: 0; margin: 0; list-style: none; }
.kt-faq button, .kt-news button, .kt-campaign button { font-family: inherit; cursor: pointer; }

/* ============================================================
 *  共通：アーカイブヒーロー
 * ============================================================ */
.kt-faq-hero, .kt-news-hero, .kt-campaign-hero {
    padding: 96px 64px 56px;
    text-align: center;
    background: linear-gradient(180deg, var(--c-bg-softer) 0%, #fff 100%);
}
.kt-archive-eyebrow {
    font-family: var(--font-en);
    font-size: 11px;
    letter-spacing: 0.3em;
    color: var(--c-cos-deep);
    text-transform: uppercase;
    margin: 0 0 16px;
}
.kt-archive-title {
    font-size: 36px;
    font-weight: 300;
    color: var(--c-text);
    margin: 0 0 16px;
    letter-spacing: 0.05em;
}
.kt-archive-subtitle {
    font-size: 14px;
    color: var(--c-sub);
    line-height: 1.9;
    margin: 0;
}

/* ============================================================
 *  共通：カテゴリタブ
 * ============================================================ */
.kt-archive-tabs-wrap {
    padding: 0 64px 32px;
    background: #fff;
}
.kt-archive-tabs {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    border-bottom: 0.5px solid var(--c-border);
    padding-bottom: 16px;
}
.kt-archive-tab {
    padding: 10px 22px;
    font-size: 13px;
    color: var(--c-text);
    letter-spacing: 0.05em;
    border: 0.5px solid var(--c-border);
    background: #fff;
    border-radius: 100px;
    transition: all 0.2s;
}
.kt-archive-tab:hover { border-color: var(--c-cos); color: var(--c-cos-deep); }
.kt-archive-tab.is-active {
    background: var(--c-text);
    color: #fff;
    border-color: var(--c-text);
    font-weight: 500;
}
.kt-archive-tab--gyn:hover  { border-color: var(--c-gyn);  color: var(--c-gyn-deep); }
.kt-archive-tab--gyn.is-active { background: var(--c-gyn); border-color: var(--c-gyn); color: #fff; }
.kt-archive-tab--derm:hover { border-color: var(--c-derm); color: var(--c-derm-deep); }
.kt-archive-tab--derm.is-active { background: var(--c-derm); border-color: var(--c-derm); color: #fff; }
.kt-archive-tab--cos:hover  { border-color: var(--c-cos);  color: var(--c-cos-deep); }
.kt-archive-tab--cos.is-active { background: var(--c-cos); border-color: var(--c-cos); color: #fff; }

/* ============================================================
 *  共通：empty / pagination / back-link / cta
 * ============================================================ */
.kt-archive-empty {
    text-align: center;
    color: var(--c-sub);
    padding: 80px 0;
}
.kt-archive-pagination {
    max-width: 900px;
    margin: 48px auto 0;
    text-align: center;
}
.kt-archive-back-link {
    display: inline-block;
    padding: 14px 32px;
    border: 0.5px solid var(--c-text);
    color: var(--c-text);
    font-size: 13px;
    letter-spacing: 0.1em;
    border-radius: 2px;
    transition: all 0.2s;
}
.kt-archive-back-link:hover { background: var(--c-text); color: #fff; }

.kt-archive-cta {
    padding: 80px 64px;
    background: linear-gradient(135deg, #1A1F2E 0%, #2A3142 100%);
    text-align: center;
    color: #fff;
}
.kt-archive-cta-label {
    font-family: var(--font-en);
    font-size: 11px;
    letter-spacing: 0.3em;
    color: var(--c-cos);
    text-transform: uppercase;
    margin: 0 0 16px;
}
.kt-archive-cta h2 {
    font-size: 26px;
    font-weight: 300;
    color: #fff;
    margin: 0 0 16px;
    letter-spacing: 0.05em;
    line-height: 1.6;
}
.kt-archive-cta p {
    font-size: 14px;
    line-height: 1.9;
    color: rgba(255, 255, 255, 0.85);
    margin: 0 0 32px;
}
.kt-archive-cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
}
.kt-archive-cta-btn {
    padding: 14px 36px;
    font-size: 13px;
    letter-spacing: 0.15em;
    border-radius: 2px;
    transition: opacity 0.2s;
}
.kt-archive-cta-btn:hover { opacity: 0.88; }
.kt-archive-cta-btn--primary { background: var(--c-cos); color: var(--c-text); }
.kt-archive-cta-btn--tel {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    border: 0.5px solid rgba(255, 255, 255, 0.4);
}

/* ============================================================
 *  FAQ：アコーディオン
 * ============================================================ */
.kt-faq-list-section {
    padding: 56px 64px 80px;
    background: var(--c-bg-softer);
}
.kt-faq-list {
    max-width: 900px;
    margin: 0 auto;
    background: #fff;
    border: 0.5px solid var(--c-border);
}
.kt-faq-item { border-bottom: 0.5px solid var(--c-border); }
.kt-faq-item:last-child { border-bottom: none; }
.kt-faq-question {
    width: 100%;
    padding: 24px 32px;
    text-align: left;
    background: none;
    border: none;
    font-family: inherit;
    font-size: 15px;
    color: var(--c-text);
    display: flex;
    justify-content: space-between;
    align-items: center;
    letter-spacing: 0.03em;
    cursor: pointer;
}
.kt-faq-question::before {
    content: 'Q.';
    font-family: var(--font-en);
    font-size: 14px;
    color: var(--c-cos-deep);
    margin-right: 16px;
    font-weight: 400;
}
.kt-faq-q-text { flex: 1; }
.kt-faq-toggle {
    color: var(--c-cos-deep);
    font-family: var(--font-en);
    font-weight: 200;
    font-size: 20px;
}
.kt-faq-answer {
    padding: 0 32px 0 64px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    font-size: 13px;
    line-height: 2;
    color: var(--c-sub);
}
.kt-faq-item.is-open .kt-faq-answer {
    max-height: 600px;
    padding: 0 32px 24px 64px;
}

/* ============================================================
 *  News：リスト
 * ============================================================ */
.kt-news-list-section {
    padding: 56px 64px 80px;
    background: #fff;
}
.kt-news-list {
    max-width: 1000px;
    margin: 0 auto;
    border-top: 0.5px solid var(--c-border);
}
.kt-news-item {
    display: grid;
    grid-template-columns: 120px 110px 1fr 30px;
    align-items: center;
    gap: 24px;
    padding: 20px 16px;
    border-bottom: 0.5px solid var(--c-border);
    transition: background 0.2s;
}
.kt-news-item:hover { background: var(--c-bg-softer); }
.kt-news-date {
    font-family: var(--font-en);
    font-size: 12px;
    color: var(--c-meta);
    letter-spacing: 0.1em;
}
.kt-news-tag {
    font-size: 11px;
    padding: 4px 12px;
    text-align: center;
    letter-spacing: 0.1em;
}
.kt-news-tag--default { background: var(--c-bg-soft); color: var(--c-meta); }
.kt-news-tag--gyn  { background: var(--c-gyn-soft);  color: var(--c-gyn-deep); }
.kt-news-tag--derm { background: var(--c-derm-soft); color: var(--c-derm-deep); }
.kt-news-tag--cos  { background: var(--c-cos-soft);  color: var(--c-cos-deep); }
.kt-news-title {
    font-size: 14px;
    color: var(--c-text);
    letter-spacing: 0.02em;
}
.kt-news-arrow {
    text-align: right;
    color: var(--c-cos-deep);
}

/* News Single */
.kt-news-single { background: #fff; }
.kt-news-single-header {
    max-width: 800px;
    margin: 0 auto;
    padding: 64px 32px 32px;
    text-align: center;
    border-bottom: 0.5px solid var(--c-border);
}
.kt-news-single-meta {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}
.kt-news-single-meta time {
    font-family: var(--font-en);
    font-size: 12px;
    color: var(--c-meta);
    letter-spacing: 0.1em;
}
.kt-news-single-title {
    font-size: 26px;
    font-weight: 500;
    color: var(--c-text);
    line-height: 1.6;
    letter-spacing: 0.03em;
    margin: 0;
}
.kt-news-single-thumbnail {
    max-width: 800px;
    margin: 40px auto 0;
}
.kt-news-single-body { padding: 48px 32px 64px; }
.kt-news-single-content {
    max-width: 760px;
    margin: 0 auto;
    font-size: 15px;
    line-height: 2;
    color: var(--c-sub);
}
.kt-news-single-content p { margin: 0 0 20px; }
.kt-news-single-content h2 {
    font-size: 20px;
    font-weight: 500;
    color: var(--c-text);
    margin: 32px 0 16px;
    padding-left: 12px;
    border-left: 3px solid var(--c-cos);
}
.kt-news-single-content a {
    color: var(--c-cos-deep);
    text-decoration: underline;
}

.kt-news-single-nav {
    max-width: 800px;
    margin: 0 auto;
    padding: 32px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    border-top: 0.5px solid var(--c-border);
}
.kt-news-single-nav-link {
    display: inline-block;
    transition: opacity 0.2s;
}
.kt-news-single-nav-link:hover { opacity: 0.7; }
.kt-news-single-nav-link--right { text-align: right; }
.kt-news-single-nav-label {
    display: block;
    font-family: var(--font-en);
    font-size: 11px;
    color: var(--c-meta);
    letter-spacing: 0.15em;
    margin-bottom: 6px;
}
.kt-news-single-nav-title {
    display: block;
    font-size: 13px;
    color: var(--c-text);
    line-height: 1.6;
    letter-spacing: 0.02em;
}
.kt-news-single-back {
    text-align: center;
    padding: 0 32px 80px;
    margin: 0;
}

/* ============================================================
 *  Campaign：カードグリッド
 * ============================================================ */
.kt-campaign-list-section {
    padding: 56px 64px 80px;
    background: var(--c-bg-softer);
}
.kt-campaign-grid {
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.kt-campaign-card {
    background: #fff;
    border: 0.5px solid var(--c-border);
    display: flex;
    flex-direction: column;
    transition: transform 0.3s, box-shadow 0.3s;
}
.kt-campaign-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(26, 31, 46, 0.08);
}
.kt-campaign-card-img {
    aspect-ratio: 4/3;
    background: linear-gradient(135deg, var(--c-cos-soft) 0%, #E8D9B8 100%);
    position: relative;
    overflow: hidden;
}
.kt-campaign-card-img img { width: 100%; height: 100%; object-fit: cover; }
.kt-campaign-card-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    background: var(--c-cos);
    color: #fff;
    padding: 4px 10px;
    font-size: 10px;
    letter-spacing: 0.15em;
    font-family: var(--font-en);
}
.kt-campaign-card-period {
    position: absolute;
    bottom: 12px;
    right: 12px;
    background: rgba(26, 31, 46, 0.85);
    color: #fff;
    padding: 4px 10px;
    font-size: 11px;
    font-family: var(--font-en);
}
.kt-campaign-card-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex: 1;
}
.kt-campaign-card-genre {
    display: inline-block;
    font-family: var(--font-en);
    font-size: 10px;
    letter-spacing: 0.2em;
    color: var(--c-cos-deep);
    padding: 3px 10px;
    border: 0.5px solid var(--c-cos);
    margin-bottom: 12px;
    text-transform: uppercase;
    align-self: flex-start;
}
.kt-campaign-card-title {
    font-size: 16px;
    font-weight: 500;
    color: var(--c-text);
    margin: 0 0 12px;
    line-height: 1.5;
    letter-spacing: 0.02em;
}
.kt-campaign-card-desc {
    font-size: 12px;
    line-height: 1.8;
    color: var(--c-sub);
    margin: 0 0 16px;
}
.kt-campaign-card-prices {
    padding: 12px 0;
    border-top: 0.5px solid var(--c-border);
    border-bottom: 0.5px solid var(--c-border);
    margin-bottom: 16px;
}
.kt-campaign-card-price-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    font-size: 12px;
    color: var(--c-sub);
    padding: 2px 0;
}
.kt-campaign-card-price {
    font-family: var(--font-en);
    font-size: 16px;
    font-weight: 500;
    color: var(--c-text);
}
.kt-campaign-card-buttons {
    display: flex;
    gap: 8px;
    margin-top: auto;
}
.kt-campaign-btn {
    flex: 1;
    padding: 10px;
    text-align: center;
    font-size: 11px;
    letter-spacing: 0.1em;
    border-radius: 2px;
    transition: opacity 0.2s;
}
.kt-campaign-btn--secondary {
    border: 0.5px solid var(--c-text);
    color: var(--c-text);
}
.kt-campaign-btn--primary {
    background: var(--c-cos);
    color: #fff;
}
.kt-campaign-btn:hover { opacity: 0.85; }

/* ============================================================
 *  Responsive
 * ============================================================ */
@media (max-width: 1024px) {
    .kt-faq-hero, .kt-news-hero, .kt-campaign-hero { padding: 64px 40px 40px; }
    .kt-archive-tabs-wrap { padding: 0 40px 24px; }
    .kt-faq-list-section,
    .kt-news-list-section,
    .kt-campaign-list-section { padding: 40px 40px 64px; }
    .kt-campaign-grid { grid-template-columns: repeat(2, 1fr); }
    .kt-archive-cta { padding: 64px 40px; }
    .kt-news-item { grid-template-columns: 100px 90px 1fr 24px; gap: 16px; }
}
@media (max-width: 768px) {
    .kt-faq-hero, .kt-news-hero, .kt-campaign-hero { padding: 48px 20px 32px; }
    .kt-archive-title { font-size: 28px; }
    .kt-archive-tabs-wrap { padding: 0 20px 24px; }
    .kt-faq-list-section,
    .kt-news-list-section,
    .kt-campaign-list-section { padding: 32px 20px 56px; }
    .kt-faq-question { padding: 20px; font-size: 14px; }
    .kt-faq-question::before { margin-right: 10px; }
    .kt-faq-answer { padding: 0 20px 0 42px; }
    .kt-faq-item.is-open .kt-faq-answer { padding: 0 20px 20px 42px; }

    .kt-news-item {
        grid-template-columns: 1fr;
        gap: 8px;
        padding: 16px;
    }
    .kt-news-arrow { display: none; }
    .kt-news-tag { justify-self: flex-start; }

    .kt-news-single-header { padding: 48px 20px 24px; }
    .kt-news-single-title { font-size: 20px; }
    .kt-news-single-body { padding: 32px 20px 48px; }
    .kt-news-single-nav { grid-template-columns: 1fr; padding: 24px 20px; gap: 16px; }
    .kt-news-single-nav-link--right { text-align: left; }
    .kt-news-single-back { padding: 0 20px 56px; }

    .kt-campaign-grid { grid-template-columns: 1fr; }

    .kt-archive-cta { padding: 48px 20px; }
    .kt-archive-cta h2 { font-size: 22px; }
    .kt-archive-cta-buttons { flex-direction: column; }
    .kt-archive-cta-btn { width: 100%; }
}