:root {
    --green: #52b85a;
    --green-dark: #3d9f44;
    --text: #2f2f2f;
    --muted: #5a5a5a;
    --border: #e4e7eb;
    --surface: #ffffff;
    --bg: #f5f7f7;
    --badge: #e1f4e2;
    --warning-bg: #fff2f2;
    --warning-border: #f1c2c2;
    --warning-text: #a74b4b;
}

* {
    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: 1040px;
    margin: 0 auto;
    padding: 0 20px 64px;
}

.blog-article {
    display: grid;
    gap: 24px;
    margin-top: 32px;
}

.article-hero {
    background: radial-gradient(circle at 14% 20%, rgba(82, 184, 90, 0.12), transparent 45%), linear-gradient(120deg, #ffffff 0%, #f8fbf7 60%, #eef5ed 100%);
    border-radius: 20px;
    padding: 28px;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 24px;
    align-items: center;
    box-shadow: 0 22px 36px rgba(0, 0, 0, 0.06);
}

.article-hero-copy {
    display: grid;
    gap: 12px;
}

.article-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 6px 12px;
    border-radius: 999px;
    background: var(--badge);
    color: var(--green);
    font-weight: 800;
    font-size: 13px;
    letter-spacing: 0.6px;
    margin: 0;
    width: fit-content;
}

.article-title {
    margin: 0;
    font-size: 30px;
    line-height: 1.4;
    color: #1f1f1f;
}

.article-lead {
    margin: 0;
    color: var(--muted);
    line-height: 1.8;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: var(--muted);
}

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

.article-hero-image {
    border-radius: 16px;
    overflow: hidden;
    background: #f0f0f0;
    height: 100%;
    min-height: 220px;
}

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

.article-body {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 28px;
    display: grid;
    gap: 20px;
    box-shadow: 0 18px 28px rgba(0, 0, 0, 0.05);
}

.article-body p {
    margin: 0;
    line-height: 1.9;
}

.article-callout {
    background: #f1f7f1;
    border-left: 4px solid var(--green);
    border-radius: 12px;
    padding: 16px 18px;
    font-weight: 700;
    line-height: 1.7;
}

.article-section {
    display: grid;
    gap: 10px;
}

.article-section h2 {
    margin: 0;
    font-size: 20px;
    color: #1f1f1f;
}

.article-section h3 {
    margin: 0;
    font-size: 17px;
    color: #1f1f1f;
}

.article-list {
    margin: 0;
    padding-left: 20px;
    display: grid;
    gap: 6px;
    color: var(--text);
    line-height: 1.7;
}

.article-compare {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.article-compare-card {
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 16px;
    background: #ffffff;
    box-shadow: 0 12px 20px rgba(0, 0, 0, 0.04);
    display: grid;
    gap: 10px;
}

.article-compare-card.is-pro {
    background: #f7fbf7;
    border-color: rgba(82, 184, 90, 0.35);
}

.article-cta {
    margin-bottom: 20px;
}

.article-cta-inner {
    background: linear-gradient(120deg, #52b85a 0%, #46a14d 100%);
    color: #ffffff;
    border-radius: 18px;
    padding: 26px 24px;
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 18px;
    align-items: center;
    box-shadow: 0 18px 32px rgba(82, 184, 90, 0.32);
}

.article-cta-badge {
    margin: 0 0 6px;
    display: inline-flex;
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.18);
    font-weight: 800;
    letter-spacing: 0.6px;
}

.article-cta-title {
    margin: 0 0 6px;
    font-size: 22px;
    line-height: 1.4;
}

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

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

.article-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,
        background-color 0.2s ease;
}

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

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

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

    .blog-article {
        margin-top: 24px;
    }

    .article-hero {
        grid-template-columns: 1fr;
        padding: 22px 20px;
    }

    .article-title {
        font-size: 24px;
    }

    .article-hero-image {
        min-height: 200px;
    }

    .article-body {
        padding: 22px;
    }

    .article-compare {
        grid-template-columns: 1fr;
    }

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