/* トップページ固有スタイル */

/* ローディング */
.loading {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #060a12 0%, var(--color-primary) 50%, #0a1a3a 100%);
    transition: opacity 0.8s ease, visibility 0.8s ease;
}
.loading.is_hidden {
    opacity: 0;
    visibility: hidden;
}
.loading_inner {
    text-align: center;
}
.loading_title {
    font-family: var(--font-latin);
    font-size: 1.5rem;
    font-weight: 300;
    letter-spacing: 0.3em;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 24px;
}
.loading_line {
    display: block;
    width: 60px;
    height: 1px;
    margin: 0 auto;
    background-color: rgba(255, 255, 255, 0.3);
    position: relative;
    overflow: hidden;
}
.loading_line::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.9);
    animation: loading_progress 1.2s ease-in-out infinite;
}
@keyframes loading_progress {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}
/* ページ本体のフェードイン */
body.is_loading {
    overflow: hidden;
}
body.is_loading .hero,
body.is_loading .news,
body.is_loading .section,
body.is_loading .cta,
body.is_loading #header {
    opacity: 0;
}
body.is_loaded .hero,
body.is_loaded .news,
body.is_loaded .section,
body.is_loaded .cta,
body.is_loaded #header {
    animation: fade_in_opacity 0.8s ease forwards;
}
body.is_loaded .hero {
    animation-delay: 0s;
}
body.is_loaded #header {
    animation-delay: 0.1s;
}
body.is_loaded .news {
    animation-delay: 0.15s;
}
@keyframes fade_in_up {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
@keyframes fade_in_opacity {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* ヒーロー */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background-color: var(--color-bg-darker);
    overflow: hidden;
}
.hero_bg {
    position: absolute;
    inset: 0;
    background-image: url('../images/common/fv.jpg');
    background-image: image-set(url('../images/common/fv.webp') type('image/webp'), url('../images/common/fv.jpg') type('image/jpeg'));
    background-size: cover;
    background-position: center;
}
.hero_overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg,
            rgba(6, 10, 18, 0.75) 0%,
            rgba(12, 51, 136, 0.5) 50%,
            rgba(6, 10, 18, 0.7) 100%);
}
.hero_accent_line {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 6px;
    background: linear-gradient(to bottom,
            transparent 0%,
            var(--color-accent) 30%,
            var(--color-primary) 70%,
            transparent 100%);
}
.hero_accent_line-right {
    left: auto;
    right: 0;
}
.hero_content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}
.hero_label {
    display: inline-block;
    font-family: var(--font-latin);
    font-size: 0.875rem;
    font-weight: 400;
    letter-spacing: 0.2em;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 36px;
}
.hero_title {
    font-family: var(--font-serif);
    font-weight: 500;
    line-height: 1.45;
    color: var(--color-bg);
    letter-spacing: 0.06em;
    margin-bottom: 40px;
}
.hero_title_accent {
    display: block;
    color: var(--color-bg);
}
.hero_lead {
    font-size: 0.9375rem;
    line-height: 2.2;
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 56px;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
}
.hero_actions {
    display: flex;
    justify-content: center;
    gap: 20px;
}
.hero_scroll {
    position: absolute;
    bottom: 48px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    color: rgba(255, 255, 255, 0.4);
}
.hero_scroll_text {
    font-family: var(--font-latin);
    font-size: 0.625rem;
    letter-spacing: 0.25em;
    writing-mode: vertical-rl;
}
.hero_scroll_line {
    width: 1px;
    height: 48px;
    background: linear-gradient(to bottom, var(--color-accent), transparent);
    animation: scroll_line 2s ease-in-out infinite;
}
@keyframes scroll_line {
    0% {
        transform: scaleY(0);
        transform-origin: top;
        opacity: 1;
    }
    50% {
        transform: scaleY(1);
        transform-origin: top;
        opacity: 1;
    }
    50.1% {
        transform: scaleY(1);
        transform-origin: bottom;
        opacity: 1;
    }
    100% {
        transform: scaleY(0);
        transform-origin: bottom;
        opacity: 0;
    }
}

/* ニュース */
.news {
    border-bottom: 1px solid var(--color-border);
}
.news_header {
    padding-top: 4px;
}
.news_header .section_label {
    margin-bottom: 12px;
}
.news_header_title {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--color-text);
}
.news_list {
    display: flex;
    flex-direction: column;
}
.news_item {
    align-items: center;
    border-bottom: 1px solid var(--color-border-light);
}
.news_item:last-child {
    border-bottom: none;
}
.news_date {
    font-family: var(--font-latin);
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    letter-spacing: 0.05em;
}
.news_category {
    font-size: 0.625rem;
    font-weight: 500;
    color: var(--color-primary);
    padding: 6px 12px;
    background-color: rgba(12, 51, 136, 0.06);
    text-align: center;
    letter-spacing: 0.05em;
}
.news_category-media {
    color: var(--color-category-media);
    background-color: rgba(107, 91, 149, 0.06);
}
.news_category-paper {
    color: var(--color-category-paper);
    background-color: rgba(184, 134, 11, 0.06);
}
.news_title {
    font-size: 0.875rem;
    color: var(--color-text);
}
.news_title:hover {
    color: var(--color-accent);
}
.news_more {
    padding-top: 4px;
}

/* プロフィール */
.profile_image {
    position: relative;
}
.profile_image_main {
    width: 100%;
    aspect-ratio: 1/1;
    object-fit: cover;
    display: block;
}
.profile_image_frame {
    position: absolute;
    top: 24px;
    left: 24px;
    right: -24px;
    bottom: -24px;
    border: 1px solid var(--color-border);
    z-index: -1;
    aspect-ratio: 1/1;
}
.profile_content {
    padding-top: 24px;
}
.profile_name {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: 12px;
    letter-spacing: 0.1em;
}
.profile_name_en {
    font-family: var(--font-latin);
    font-size: 0.75rem;
    color: var(--color-text-muted);
    letter-spacing: 0.15em;
    margin-bottom: 48px;
}
.profile_quote {
    font-size: 1.1875rem;
    line-height: 2.2;
    color: var(--color-text);
    padding-left: 28px;
    border-left: 3px solid var(--color-accent);
    margin-bottom: 35px;
}
.profile_stats {
    margin-bottom: 48px;
}
.stat_box {
    padding: 32px;
    background-color: var(--color-bg-gray);
}
.stat_box_label {
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 400;
    color: var(--color-text-light);
    color: var(--color-accent);
    margin-bottom: 16px;
}
.stat_box_value {
    font-family: var(--font-latin);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1;
    margin-top: 12px;
}
.stat_box_value small {
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-latin);
    color: var(--color-text);
    margin-left: 4px;
}
.profile_text {
    font-size: 1rem;
    line-height: 2.2;
    color: var(--color-text-light);
    margin-bottom: 36px;
}

/* OZAKI法とは */
.about_header {
    text-align: center;
    margin-bottom: 80px;
}
.about_challenge_heading {
    text-align: center;
    margin-bottom: 48px;
}
.about_challenge_heading_text {
    display: inline-block;
    font-family: var(--font-serif);
    font-size: 1.375rem;
    font-weight: 500;
    color: var(--color-text);
    letter-spacing: 0.04em;
    position: relative;
    padding-bottom: 20px;
}
.about_challenge_heading_text::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 2px;
    background-color: var(--color-primary);
}
.about_challenge_grid {
    margin-bottom: 0;
}
.about_challenge_card {
    background-color: var(--color-bg);
    padding: 40px;
    border-top: 3px solid var(--color-challenge);
}
.about_challenge_card_label {
    font-family: var(--font-latin);
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-challenge);
    margin-bottom: 20px;
    line-height: 1;
}
.about_challenge_card_title {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: 16px;
}
.about_challenge_card_list {
    font-size: 0.875rem;
    line-height: 2.2;
    color: var(--color-text-light);
}
.about_challenge_card_list li {
    padding-left: 20px;
    position: relative;
}
.about_challenge_card_list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.9em;
    width: 6px;
    height: 6px;
    background-color: var(--color-challenge);
    border-radius: 50%;
}
.about_arrow {
    text-align: center;
    padding: 40px 0;
    color: var(--color-primary);
}
.about_arrow_icon {
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-primary);
    border-radius: 50%;
    color: var(--color-bg);
}
.about_arrow_icon svg {
    width: 20px;
    height: 20px;
}
.about_solution {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    margin-bottom: 48px;
    text-align: center;
    color: var(--color-bg);
}
.about_solution_badge {
    display: inline-block;
    font-family: var(--font-latin);
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 8px 24px;
    margin-bottom: 24px;
}
.about_solution_title {
    font-family: var(--font-serif);
    font-weight: 500;
    color: var(--color-bg);
    margin-bottom: 28px;
    letter-spacing: 0.06em;
}
.about_solution_text {
    font-size: 0.9375rem;
    line-height: 2;
    color: rgba(255, 255, 255, 0.85);
    max-width: 640px;
    margin: 0 auto 32px;
}
.about_solution_quote {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 16px 32px;
    background: rgba(255, 255, 255, 0.1);
}
.about_solution_quote_icon {
    font-size: 1.5rem;
    color: var(--color-accent-light);
    line-height: 1;
}
.about_solution_quote_text {
    font-family: var(--font-serif);
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-bg);
    line-height: 1.8;
}
.about_actions {
    text-align: center;
}

/* 特長 */
.features_grid {
    gap: 1px;
    background-color: var(--color-border);
}
.feature_card {
    background-color: var(--color-bg);
    padding: 64px 48px;
}
.feature_card_number {
    font-family: var(--font-latin);
    font-size: 3.5rem;
    font-weight: 300;
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: 32px;
}
.feature_card_title {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: 20px;
    letter-spacing: 0.04em;
}
.feature_card_text {
    font-size: 0.875rem;
    line-height: 2;
    color: var(--color-text-light);
}
.features_actions {
    text-align: center;
    margin-top: 60px;
}

/* 認定病院 */
.network_content .section_label {
    color: rgba(255, 255, 255, 0.5);
}
.network_title {
    font-family: var(--font-serif);
    font-weight: 500;
    color: var(--color-bg);
    line-height: 1.6;
    margin-bottom: 28px;
    letter-spacing: 0.04em;
}
.network_title_label {
    display: block;
    font-family: var(--font-latin);
    font-size: 0.6875rem;
    font-weight: 400;
    letter-spacing: 0.2em;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 12px;
}
.network_lead {
    font-size: 0.875rem;
    line-height: 2.2;
    color: rgba(255, 255, 255, 0.65);
    margin-bottom: 48px;
}
.region_grid {
    gap: 8px;
    margin-bottom: 40px;
}
.region_btn {
    padding: 16px 8px;
    font-size: 0.8125rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.75);
    background-color: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: center;
}
.region_btn:hover,
.region_btn.is_active {
    background-color: var(--color-bg);
    color: var(--color-primary);
    border-color: var(--color-bg);
}
.network_visual {
    display: flex;
    justify-content: center;
    align-items: center;
}
.network_badge {
    text-align: center;
    padding: 64px 80px;
    background-color: var(--color-bg);
    position: relative;
}
.network_badge::before {
    content: '';
    position: absolute;
    inset: -24px;
    border: 1px solid rgba(255, 255, 255, 0.15);
}
.network_badge_label {
    font-family: var(--font-latin);
    font-size: 0.625rem;
    font-weight: 700;
    letter-spacing: 0.25em;
    color: var(--color-accent);
    margin-bottom: 16px;
}
.network_badge_value {
    font-family: var(--font-latin);
    font-size: 5rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
}
.network_badge_unit {
    font-size: 1.25rem;
    font-weight: 400;
}
.network_badge_note {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: 16px;
}

/* よくある質問 */
.faq_list {
    max-width: 880px;
    margin: 0 auto;
}
.faq_item {
    border-bottom: 1px solid var(--color-border);
}
.faq_question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 32px 0;
    cursor: pointer;
    transition: opacity var(--transition-fast);
}
.faq_question:hover {
    opacity: 0.7;
}
.faq_question_text {
    display: flex;
    align-items: center;
    gap: 24px;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text);
}
.faq_question_text::before {
    content: 'Q';
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    font-family: var(--font-latin);
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--color-bg);
    background-color: var(--color-primary);
    flex-shrink: 0;
}
.faq_icon {
    width: 16px;
    height: 16px;
    position: relative;
    flex-shrink: 0;
}
.faq_icon::before,
.faq_icon::after {
    content: '';
    position: absolute;
    background-color: var(--color-text);
    transition: transform var(--transition-fast);
}
.faq_icon::before {
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    transform: translateY(-50%);
}
.faq_icon::after {
    left: 50%;
    top: 0;
    bottom: 0;
    width: 1px;
    transform: translateX(-50%);
}
.faq_item.is_active .faq_icon::after {
    transform: translateX(-50%) rotate(90deg);
    opacity: 0;
}
.faq_answer {
    display: none;
    padding: 0 0 32px 60px;
    font-size: 0.875rem;
    line-height: 2.2;
    color: var(--color-text-light);
}
.faq_item.is_active .faq_answer {
    display: block;
}
.faq_actions {
    text-align: center;
    margin-top: 60px;
}

/* PC */
@media screen and (min-width: 900px) {
    .hero_content {
        padding: 140px 0 100px;
    }
    .hero_title {
        font-size: 2.3rem;
    }
    .hero_lead {
        max-width: 680px;
        text-align: left;
    }
    .news {
        padding: 100px 0;
    }
    .news_inner {
        display: grid;
        grid-template-columns: 240px 1fr auto;
        align-items: start;
        gap: 80px;
    }
    .news_item {
        display: grid;
        grid-template-columns: 110px 100px 1fr;
        gap: 32px;
        padding: 24px 0;
    }
    .profile_grid {
        display: grid;
        grid-template-columns: 35% 1fr;
        gap: 100px;
    }
    .profile_stats {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }
    .about_challenge_grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 24px;
    }
    .about_solution {
        padding: 64px;
    }
    .about_solution_title {
        font-size: 2rem;
    }
    .features_grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
    }
    .network_grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 120px;
        align-items: center;
    }
    .network_title {
        font-size: 2.25rem;
    }
    .region_grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
    }
}

/* SP */
@media screen and (max-width: 899px) {
    .hero_content {
        padding: 120px 0 80px;
    }
    .hero_title {
        font-size: 2rem;
    }
    .hero_actions {
        flex-direction: column;
    }
    .news {
        padding: 60px 0;
    }
    .news_inner {
        display: flex;
        flex-direction: column;
        gap: 32px;
    }
    .news_more {
        order: -1;
    }
    .news_item {
        display: flex;
        flex-direction: column;
        gap: 10px;
        padding: 20px 0;
    }
    .profile_grid {
        display: flex;
        flex-direction: column;
        gap: 48px;
    }
    .profile_stats {
        display: flex;
        flex-direction: column;
        gap: 16px;
    }
    .about_challenge_grid {
        display: flex;
        flex-direction: column;
        gap: 16px;
    }
    .about_solution {
        padding: 40px 24px;
    }
    .about_solution_title {
        font-size: 1.5rem;
    }
    .features_grid {
        display: flex;
        flex-direction: column;
    }
    .network_grid {
        display: flex;
        flex-direction: column;
        gap: 48px;
    }
    .network_title {
        font-size: 1.5rem;
    }
    .region_grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
    }
    .feature_card {
        padding: 40px 24px;
    }
    .network_badge {
        padding: 40px 32px;
    }
}