:root {
    --primary-color: #e8114f; /* MakotoAI Red accent */
    --primary-hover: #c40a3f;
    --text-main: #333333;
    --text-light: #666666;
    --bg-body: #f5f6f8;
    --bg-surface: #ffffff;
    --border-color: #eaeaea;
    --font-sans: 'Inter', 'Noto Sans JP', sans-serif;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-sans);
    color: var(--text-main);
    background-color: var(--bg-body);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.pr-header {
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.pr-header-inner {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 0.85rem;
}

.pr-label {
    background-color: #000;
    color: #fff;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    letter-spacing: 0.05em;
}

.pr-company {
    font-weight: 500;
    color: var(--text-light);
}

.pr-date {
    margin-left: auto;
    color: var(--text-light);
}

/* Main Article */
.pr-article {
    background-color: var(--bg-surface);
    margin: 40px 0;
    padding: 48px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.article-header {
    margin-bottom: 40px;
}

.article-title {
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 24px;
    color: #111;
}

.title-catch {
    color: var(--primary-color);
    font-size: 1.1rem;
    display: inline-block;
    margin-bottom: 8px;
}

.main-visual {
    margin-top: 24px;
    border-radius: var(--radius-md);
    overflow: hidden;
    background-color: #f0f0f0;
}

.main-visual img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

.main-visual figcaption {
    font-size: 0.8rem;
    color: var(--text-light);
    text-align: right;
    margin-top: 8px;
}

/* Article Body */
.article-body .lead {
    font-size: 1.15rem;
    font-weight: 500;
    margin-bottom: 32px;
}

.article-body p {
    margin-bottom: 24px;
}

.article-body strong {
    background: linear-gradient(transparent 70%, rgba(232, 17, 79, 0.2) 70%);
}

.info-section {
    margin-top: 48px;
}

.info-section.highlight {
    background-color: #fafafa;
    padding: 32px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.section-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 24px;
    border-bottom: 2px solid var(--primary-color);
    display: inline-block;
    padding-bottom: 4px;
}

/* Feature List */
.feature-list {
    list-style: none;
}

.feature-list li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 16px;
}

.feature-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 8px;
    height: 8px;
    background-color: var(--primary-color);
    border-radius: 50%;
}

.feature-title {
    display: block;
    font-weight: 700;
    color: #111;
    margin-bottom: 4px;
}

/* Info Table */
.info-table {
    width: 100%;
    border-collapse: collapse;
}

.info-table th, .info-table td {
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
    vertical-align: top;
}

.info-table th {
    width: 25%;
    font-weight: 500;
    color: var(--text-light);
    white-space: nowrap;
}

/* Link Cards */
.link-cards {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 24px;
}

.link-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px;
    background-color: #fff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: inherit;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-sm);
}

.link-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.link-content {
    display: flex;
    flex-direction: column;
}

.link-label {
    font-weight: 700;
    color: #111;
    margin-bottom: 4px;
}

.link-url {
    font-size: 0.85rem;
    color: var(--primary-color);
}

.link-card .icon {
    color: var(--text-light);
}

/* Footer */
.article-footer {
    margin-top: 64px;
    padding-top: 32px;
    border-top: 1px dashed var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    color: var(--text-light);
}

.btn-share {
    display: inline-block;
    padding: 8px 16px;
    border-radius: 20px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.85rem;
    transition: opacity 0.2s;
}

.btn-share:hover {
    opacity: 0.8;
}

.btn-x {
    background-color: #000;
    color: #fff;
}

.site-footer {
    text-align: center;
    padding: 32px;
    color: var(--text-light);
    font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 600px) {
    .pr-article {
        margin: 20px 0;
        padding: 24px;
    }
    
    .article-title {
        font-size: 1.4rem;
    }
    
    .pr-header-inner {
        flex-wrap: wrap;
    }

    .pr-date {
        margin-left: 0;
    }
    
    .info-table th, .info-table td {
        display: block;
        width: 100%;
    }
    
    .info-table th {
        padding-bottom: 4px;
        border-bottom: none;
    }
    
    .article-footer {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
}