:root {
    --green: #52b85a;
    --green-dark: #3d9f44;
    --text: #2f2f2f;
    --muted: #5a5a5a;
    --border: #e4e7eb;
    --surface: #ffffff;
    --bg: #f5f7f7;
    --badge: #e1f4e2;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Noto Sans JP", "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bg);
    color: var(--text);
}

a {
    color: inherit;
}

.page {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px 64px;
}

.blog-list-section {
    margin-bottom: 40px;
}

.blog-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.blog-card {
    display: flex;
    flex-direction: column;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 16px 28px rgba(0, 0, 0, 0.06);
    transition:
        transform 0.2s ease,
        box-shadow 0.2s ease;
    cursor: pointer;
}

.blog-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 36px rgba(0, 0, 0, 0.08);
}

.blog-card-featured {
    grid-column: span 3;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 0;
}

.blog-card-image {
    width: 100%;
    height: 240px;
    background: #f5f5f5;
    overflow: hidden;
}

.blog-card-featured .blog-card-image {
    height: 100%;
}

.blog-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.blog-card-body {
    padding: 18px 18px 16px;
    display: grid;
    gap: 10px;
    align-content: start;
}

.blog-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    color: var(--muted);
    font-size: 14px;
}

.blog-card-category {
    display: inline-flex;
    align-items: center;
    padding: 6px 10px;
    border-radius: 999px;
    background: var(--badge);
    color: var(--green);
    font-weight: 800;
}

.blog-card-title {
    margin: 0;
    font-size: 20px;
    line-height: 1.4;
    color: #202020;
}

.blog-card-excerpt {
    margin: 0;
    color: var(--muted);
    line-height: 1.7;
}

.blog-card-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--green);
    font-weight: 800;
    text-decoration: none;
    margin-top: 4px;
}

.blog-card-link::after {
    content: "→";
    font-weight: 800;
}

.blog-cta-section {
    margin-top: 12px;
}

.blog-cta {
    background: linear-gradient(120deg, #52b85a 0%, #46a14d 100%);
    color: #ffffff;
    border-radius: 18px;
    padding: 28px 24px;
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 18px;
    align-items: center;
    box-shadow: 0 18px 32px rgba(82, 184, 90, 0.32);
}

.blog-cta-badge {
    margin: 0 0 6px;
    display: inline-flex;
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.16);
    font-weight: 800;
    letter-spacing: 0.6px;
}

.blog-cta-title {
    margin: 0 0 6px;
    font-size: 24px;
    line-height: 1.4;
}

.blog-cta-lead {
    margin: 0;
    color: #e8f6e9;
    line-height: 1.6;
}

.blog-cta-actions {
    display: grid;
    gap: 10px;
}

.blog-cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 18px;
    background: #ffffff;
    color: var(--green);
    font-weight: 800;
    text-decoration: none;
    border-radius: 12px;
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.12);
    transition:
        transform 0.2s ease,
        box-shadow 0.2s ease;
}

.blog-cta-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 16px 28px rgba(0, 0, 0, 0.16);
}

.blog-cta-button-secondary {
    background: rgba(255, 255, 255, 0.14);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.28);
    box-shadow: none;
}

/* シンプルリスト（5件目以降） */
.blog-simple-list {
    display: flex;
    flex-direction: column;
    gap: 0;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    margin-top: 24px;
}

.blog-simple-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    text-decoration: none;
    color: inherit;
    transition: background-color 0.15s ease;
}

.blog-simple-item:last-child {
    border-bottom: none;
}

.blog-simple-item:hover {
    background-color: #f8faf8;
}

.blog-simple-category {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 999px;
    background: var(--badge);
    color: var(--green);
    font-weight: 700;
    font-size: 12px;
    white-space: nowrap;
    flex-shrink: 0;
}

.blog-simple-title {
    flex: 1;
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
    line-height: 1.5;
}

.blog-simple-date {
    font-size: 13px;
    color: var(--muted);
    white-space: nowrap;
    flex-shrink: 0;
}

.blog-simple-arrow {
    color: var(--green);
    font-weight: 700;
    flex-shrink: 0;
}

@media (max-width: 960px) {
    .page {
        padding: 0 16px 48px;
    }

    .blog-list {
        grid-template-columns: 1fr;
    }

    .blog-card-featured {
        grid-column: span 1;
        grid-template-columns: 1fr;
    }

    .blog-card-image {
        height: 210px;
    }

    .blog-cta {
        grid-template-columns: 1fr;
    }

    .blog-simple-item {
        flex-wrap: wrap;
        gap: 8px 12px;
        padding: 14px 16px;
    }

    .blog-simple-title {
        order: 1;
        flex-basis: 100%;
        font-size: 14px;
    }

    .blog-simple-category {
        order: 2;
    }

    .blog-simple-date {
        order: 3;
        flex: 1;
    }

    .blog-simple-arrow {
        order: 4;
    }
}