:root {
    --color-brand: #1565c0;
    --color-cta: #ff6b35;
    --text-dark: #1a1a1a;
    --text-body: #333;
    --text-muted: #777;
    --border: #ddd;
    --bg-light: #f7f8fa;
}

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

html,
body {
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.cat-hero {
    background: var(--color-brand);
    color: #fff;
    padding: 80px 24px 64px;
    text-align: center;
}

.cat-hero__inner {
    max-width: 780px;
    margin: 0 auto;
}

.cat-hero__icon {
    margin-bottom: 20px;
}

.cat-hero__icon svg {
    width: 56px;
    height: 56px;
    color: #fff;
    opacity: 0.85;
}

.cat-hero h1 {
    font-size: 2.4rem;
    font-weight: 700;
    line-height: 1.6;
    margin-bottom: 16px;
    color: #fff;
}

.cat-hero p {
    font-size: 1.1rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 32px;
}

.btn {
    display: inline-block;
    text-decoration: none;
    cursor: pointer;
}

.btn-cta {
    padding: 14px 36px;
    background: var(--color-cta);
    color: #fff;
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.6;
    border: none;
    border-radius: 6px;
    text-decoration: none;
    transition: background-color 0.2s;
}

.btn-cta:hover {
    background: #e05a28;
    color: #fff;
}

.btn-cta:focus-visible {
    outline: 3px solid #fff;
    outline-offset: 2px;
}

.cat-articles {
    background: #fff;
    padding: 64px 24px;
}

.cat-articles__inner {
    max-width: 1200px;
    margin: 0 auto;
}

.cat-articles__inner h2 {
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 1.6;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.cat-articles__subtitle {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-muted);
    margin-bottom: 36px;
}

.cat-articles__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.cat-card {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    transition: box-shadow 0.2s;
}

.cat-card:hover {
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.14);
}

.cat-card__img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.cat-card__body {
    padding: 20px;
}

.cat-card__title {
    font-size: 1.05rem;
    font-weight: 700;
    line-height: 1.6;
    margin-bottom: 8px;
}

.cat-card__title a {
    color: var(--color-brand);
    text-decoration: none;
    transition: color 0.2s;
}

.cat-card__title a:hover {
    color: #0d47a1;
    text-decoration: underline;
}

.cat-card__title a:focus-visible {
    outline: 2px solid var(--color-brand);
    outline-offset: 2px;
}

.cat-card__desc {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-body);
    margin-bottom: 12px;
}

.cat-card__date {
    font-size: 0.85rem;
    line-height: 1.6;
    color: var(--text-muted);
}

.cat-articles__empty {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-muted);
    text-align: center;
    padding: 48px 16px;
    grid-column: 1 / -1;
}

.cat-compare {
    background: var(--bg-light);
    padding: 64px 24px;
}

.cat-compare__inner {
    max-width: 1200px;
    margin: 0 auto;
}

.cat-compare__inner h2 {
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 1.6;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.cat-compare__subtitle {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-muted);
    margin-bottom: 32px;
}

.cat-compare__table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin-bottom: 20px;
}

.cat-compare__table {
    width: 100%;
    border-collapse: collapse;
    min-width: 720px;
}

.cat-compare__table th {
    background: var(--color-brand);
    color: #fff;
    font-size: 0.85rem;
    font-weight: 700;
    line-height: 1.6;
    padding: 14px 16px;
    text-align: left;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.cat-compare__table td {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-body);
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
}

.cat-compare__table tbody tr:hover {
    background: #eef3fb;
}

.cat-compare__note {
    font-size: 0.85rem;
    line-height: 1.6;
    color: var(--text-muted);
}

.cat-roi {
    background: #fff;
    padding: 64px 24px;
}

.cat-roi__inner {
    max-width: 1200px;
    margin: 0 auto;
}

.cat-roi__inner h2 {
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 1.6;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.cat-roi__subtitle {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-muted);
    margin-bottom: 32px;
}

.cat-roi__summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.cat-roi__stat {
    background: #fff;
    border-radius: 8px;
    padding: 28px 20px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.07);
    border-top: 4px solid var(--color-brand);
}

.cat-roi__stat-value {
    display: block;
    font-size: 2.2rem;
    font-weight: 700;
    line-height: 1.6;
    color: var(--color-brand);
}

.cat-roi__stat-label {
    display: block;
    font-size: 0.85rem;
    line-height: 1.6;
    color: var(--text-muted);
    margin-top: 4px;
}

.cat-roi__table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin-bottom: 20px;
}

.cat-roi__table {
    width: 100%;
    border-collapse: collapse;
    min-width: 720px;
}

.cat-roi__table th {
    background: var(--color-brand);
    color: #fff;
    font-size: 0.85rem;
    font-weight: 700;
    line-height: 1.6;
    padding: 14px 16px;
    text-align: left;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.cat-roi__table td {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-body);
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
}

.cat-roi__table tbody tr:hover {
    background: #eef3fb;
}

.cat-roi__note {
    font-size: 0.85rem;
    line-height: 1.6;
    color: var(--text-muted);
}

.cat-region {
    background: var(--bg-light);
    padding: 64px 24px;
}

.cat-region__inner {
    max-width: 1200px;
    margin: 0 auto;
}

.cat-region__inner h2 {
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 1.6;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.cat-region__subtitle {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-muted);
    margin-bottom: 32px;
}

.cat-region__table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin-bottom: 20px;
}

.cat-region__table {
    width: 100%;
    border-collapse: collapse;
    min-width: 640px;
}

.cat-region__table th {
    background: var(--color-brand);
    color: #fff;
    font-size: 0.85rem;
    font-weight: 700;
    line-height: 1.6;
    padding: 14px 16px;
    text-align: left;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.cat-region__table td {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-body);
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
}

.cat-region__table tbody tr:hover {
    background: #eef3fb;
}

.cat-region__note {
    font-size: 0.85rem;
    line-height: 1.6;
    color: var(--text-muted);
}

.cat-disclaimer {
    background: #fff;
    padding: 48px 24px;
}

.cat-disclaimer__inner {
    max-width: 1200px;
    margin: 0 auto;
}

.cat-disclaimer__text {
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--text-muted);
    max-width: 860px;
}

@media (max-width: 768px) {
    .cat-hero {
        padding: 48px 16px 40px;
    }

    .cat-hero h1 {
        font-size: 1.8rem;
    }

    .cat-hero p {
        font-size: 1rem;
    }

    .btn-cta {
        padding: 12px 28px;
        font-size: 0.95rem;
    }

    .cat-articles {
        padding: 48px 16px;
    }

    .cat-articles__inner h2,
    .cat-compare__inner h2,
    .cat-roi__inner h2,
    .cat-region__inner h2 {
        font-size: 1.5rem;
    }

    .cat-articles__grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .cat-compare {
        padding: 48px 16px;
    }

    .cat-roi {
        padding: 48px 16px;
    }

    .cat-roi__summary {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .cat-roi__stat-value {
        font-size: 1.8rem;
    }

    .cat-region {
        padding: 48px 16px;
    }

    .cat-disclaimer {
        padding: 36px 16px;
    }
}

@media (max-width: 480px) {
    .cat-hero h1 {
        font-size: 1.5rem;
    }

    .cat-hero p {
        font-size: 0.95rem;
    }

    .cat-articles__inner h2,
    .cat-compare__inner h2,
    .cat-roi__inner h2,
    .cat-region__inner h2 {
        font-size: 1.3rem;
    }

    .cat-roi__summary {
        grid-template-columns: 1fr;
    }

    .cat-roi__stat-value {
        font-size: 1.6rem;
    }

    .cat-card__body {
        padding: 16px;
    }

    .cat-compare__table th,
    .cat-compare__table td,
    .cat-roi__table th,
    .cat-roi__table td,
    .cat-region__table th,
    .cat-region__table td {
        padding: 10px 12px;
        font-size: 0.85rem;
    }
}