/* -------------------------------------------------------------------
   Article Detail Page
------------------------------------------------------------------- */

/* Breadcrumb Wrap */
.breadcrumb-wrap {
    padding-top: calc(var(--header-height) + 32px);
    position: relative;
    z-index: 10;
}

/* Background Circles (wireframe decoration) */
.bg-circles {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 800px;
    overflow: hidden;
    pointer-events: none;
    z-index: -1;
}
.bg-circle {
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(43, 112, 214, 0.15);
}
.bg-circle-1 {
    top: -100px; left: -100px;
    width: 400px; height: 400px;
}
.bg-circle-2 {
    top: 150px; left: -50px;
    width: 250px; height: 250px;
}
.bg-circle-3 {
    top: 50px; right: -150px;
    width: 600px; height: 600px;
    border-color: rgba(25, 62, 101, 0.08);
}

/* Article Container */
.article-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 60px 40px 120px;
    position: relative;
    z-index: 1;
}

/* Article Header */
.article-header {
    margin-bottom: 48px;
}
.article-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}
.article-date {
    font-family: var(--font-en);
    font-size: 14px;
    color: var(--color-text-light);
    letter-spacing: 0.05em;
}
.article-tag {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.12em;
    padding: 6px 12px;
    border-radius: 100px;
    text-transform: uppercase;
    background: var(--color-blue-light);
    color: var(--color-primary);
}

.article-title {
    font-size: clamp(24px, 3.5vw, 36px);
    font-weight: 600;
    line-height: 1.5;
    letter-spacing: 0.05em;
    color: var(--color-text);
}

/* Article Card */
.article-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 80px;
    box-shadow: 0 15px 40px rgba(25, 62, 101, 0.04);
    border: 1px solid var(--color-border);
}

/* Article Content */
.article-content {
    font-size: 15px;
    line-height: 2.2;
    color: var(--color-text);
}
.article-content p {
    margin-bottom: 24px;
}
.article-content h2 {
    font-size: 22px;
    font-weight: 600;
    margin: 56px 0 24px;
    padding-left: 16px;
    border-left: 4px solid var(--color-primary);
    letter-spacing: 0.05em;
}
.article-content ul {
    margin-bottom: 32px;
    padding-left: 0;
}
.article-content li {
    position: relative;
    padding-left: 1.5em;
    margin-bottom: 12px;
    color: var(--color-text-light);
}
.article-content li::before {
    content: '\30FB'; /* ・ */
    position: absolute;
    left: 0;
    color: var(--color-primary);
}

/* Article Image */
.article-image {
    margin: 48px 0 16px;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}
.article-image img {
    width: 100%;
    height: auto;
    display: block;
}
.article-caption {
    font-size: 12px;
    color: var(--color-text-light);
    text-align: center;
    margin-bottom: 48px;
}

/* Article Quote */
.article-quote {
    background: var(--color-blue-light);
    padding: 40px;
    border-radius: 16px;
    margin: 48px 0;
    color: var(--color-accent);
    font-weight: 500;
    position: relative;
}
.article-quote::before {
    content: '\201C'; /* " */
    position: absolute;
    top: 20px;
    left: 20px;
    font-family: var(--font-en);
    font-size: 60px;
    color: rgba(43, 112, 214, 0.15);
    line-height: 1;
}

/* -------------------------------------------------------------------
   Share & Back Button
------------------------------------------------------------------- */
.share-area {
    margin-top: 80px;
    text-align: center;
}
.share-title {
    font-family: var(--font-en);
    font-size: 11px;
    letter-spacing: 0.2em;
    color: var(--color-text-light);
    margin-bottom: 24px;
    text-transform: uppercase;
}
.share-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 48px;
}
.btn-share {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text);
    transition: var(--transition-smooth);
    background: #fff;
    cursor: pointer;
}
.btn-share:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(43, 112, 214, 0.2);
}
.btn-share svg {
    width: 18px; height: 18px; fill: currentColor;
}

.btn-back-wrap {
    text-align: center;
}
.btn-back {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 40px;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.1em;
    border-radius: 500px;
    background: #fff;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
    transition: var(--transition-smooth);
}
.btn-back:hover {
    background: var(--color-primary);
    color: #fff;
}

/* -------------------------------------------------------------------
   Prev/Next Navigation
------------------------------------------------------------------- */
.article-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-top: 80px;
    border-top: 1px solid var(--color-border);
    padding-top: 40px;
}
.article-nav-link {
    display: flex;
    flex-direction: column;
    gap: 8px;
    transition: var(--transition-fast);
}
.article-nav-link.next {
    text-align: right;
    align-items: flex-end;
}
.article-nav-label {
    font-family: var(--font-en);
    font-size: 11px;
    color: var(--color-text-light);
    letter-spacing: 0.1em;
}
.article-nav-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
    line-height: 1.5;
    transition: var(--transition-fast);
}
.article-nav-link:hover .article-nav-title {
    color: var(--color-primary);
}

/* -------------------------------------------------------------------
   Recent News Section
------------------------------------------------------------------- */
.recent-news {
    padding: 80px 0 120px;
    background: #F9FBFC;
}
.recent-news__title-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 40px;
}
.recent-news__title-wrap::before,
.recent-news__title-wrap::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--color-border);
}
.recent-news__title {
    padding: 0 24px;
    font-size: 20px;
    font-weight: 600;
    letter-spacing: 0.05em;
    color: var(--color-text);
}

.news-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
}
.news-item {
    display: block;
    padding: 24px 0;
    border-bottom: 1px solid var(--color-border);
    transition: var(--transition-fast);
    position: relative;
}
.news-item:first-child {
    border-top: 1px solid var(--color-border);
}
.news-item:hover {
    border-bottom-color: var(--color-primary);
}
.news-item__inner {
    display: flex;
    align-items: center;
    position: relative;
}
.news-item__meta {
    display: flex;
    align-items: center;
    flex-shrink: 0;
    min-width: 200px;
    padding-right: 20px;
    margin-right: 20px;
}
.news-item__date {
    font-family: var(--font-en);
    font-size: 13px;
    color: var(--color-text-light);
    width: 100px;
}
.news-item__tag {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.12em;
    padding: 6px 12px;
    border-radius: 100px;
    text-transform: uppercase;
    text-align: center;
    min-width: 80px;
}
.news-item[data-cat="info"] .news-item__tag {
    background: var(--color-blue-light);
    color: var(--color-primary);
}
.news-item[data-cat="press"] .news-item__tag {
    background: var(--color-secondary-light);
    color: var(--color-accent);
}
.news-item[data-cat="recruit"] .news-item__tag {
    background: #E8F2FA;
    color: #2A5A8A;
}
.news-item__title {
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text);
    flex-grow: 1;
    letter-spacing: 0.03em;
    transition: var(--transition-fast);
}
.news-item:hover .news-item__title {
    color: var(--color-primary);
}

@media (max-width: 768px) {
    .article-container { padding: 40px 24px 80px; }
    .article-card { padding: 40px 24px; }
    .article-content h2 { font-size: 18px; margin: 40px 0 20px; }
    .article-quote { padding: 32px 24px; }
    .article-nav { grid-template-columns: 1fr; gap: 24px; }
    .article-nav-link.next { text-align: left; align-items: flex-start; }
    .recent-news { padding: 60px 24px; }
    .news-item { padding: 20px 0; }
    .news-item__inner { flex-direction: column; align-items: flex-start; }
    .news-item__meta {
        min-width: 100%; padding-right: 0; margin-right: 0;
        padding-bottom: 12px; margin-bottom: 8px;
        justify-content: space-between;
    }
    .news-item__title { line-height: 1.6; }
}