.article-hero {
    background-color: #1565c0;
    color: #fff;
    padding: 80px 24px 60px;
    text-align: center;
}
.article-hero__inner {
    max-width: 800px;
    margin: 0 auto;
}
.article-hero h1 {
    color: #fff;
    font-size: 2.2rem;
    font-weight: 700;
    margin: 0 0 16px;
    line-height: 1.6;
}
.article-hero__subtitle {
    color: rgba(255,255,255,0.9);
    font-size: 1.15rem;
    margin: 0 0 24px;
    line-height: 1.6;
}
.article-hero__meta {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    font-size: 0.85rem;
}
.article-hero__meta time,
.article-hero__meta span {
    color: rgba(255,255,255,0.8);
}
.article-disclaimer {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px 24px;
}
.article-disclaimer p {
    font-size: 0.85rem;
    color: #777;
    line-height: 1.6;
}
.article-content {
    max-width: 100%;
}
.prose-section {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 24px 40px;
}
.prose-section h2 {
    font-size: 1.6rem;
    font-weight: 700;
    color: #1565c0;
    margin: 0 0 20px;
    line-height: 1.6;
}
.prose-section p {
    font-size: 1rem;
    color: #333;
    margin: 0 0 16px;
    line-height: 1.6;
}
.prose-section ul {
    margin: 0 0 16px;
    padding-left: 24px;
}
.prose-section li {
    font-size: 1rem;
    color: #333;
    line-height: 1.6;
    margin-bottom: 8px;
}
.stats-section {
    background-color: #f0f0f0;
    padding: 60px 24px;
}
.stats-section h2 {
    font-size: 1.6rem;
    font-weight: 700;
    color: #222;
    text-align: center;
    margin: 0 0 40px;
    line-height: 1.6;
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    max-width: 1000px;
    margin: 0 auto;
}
.stat-card {
    background-color: #fff;
    padding: 24px;
    text-align: center;
    border-radius: 8px;
    border-top: 3px solid #1565c0;
}
.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: #1565c0;
    line-height: 1.6;
}
.stat-unit {
    display: block;
    font-size: 1.2rem;
    font-weight: 700;
    color: #1565c0;
    line-height: 1.6;
}
.stat-label {
    display: block;
    font-size: 0.9rem;
    color: #555;
    margin-top: 8px;
    line-height: 1.6;
}
.comparison-section {
    max-width: 1000px;
    margin: 0 auto;
    padding: 40px 24px;
}
.comparison-section h2 {
    font-size: 1.6rem;
    font-weight: 700;
    color: #222;
    text-align: center;
    margin: 0 0 30px;
    line-height: 1.6;
}
.table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}
.comparison-table {
    width: 100%;
    border-collapse: collapse;
}
.comparison-table th,
.comparison-table td {
    padding: 12px 16px;
    text-align: left;
    font-size: 0.95rem;
    line-height: 1.6;
}
.comparison-table th {
    background-color: #1565c0;
    color: #fff;
    font-weight: 700;
}
.comparison-table tbody tr {
    border-bottom: 1px solid #ddd;
}
.comparison-table tbody tr:last-child {
    border-bottom: none;
}
.comparison-table tbody td {
    color: #333;
}
.comparison-table tbody tr:hover {
    background-color: #f0f0f0;
}
.calculator-section {
    background-color: #f0f0f0;
    padding: 60px 24px;
}
.calculator-section h2 {
    font-size: 1.6rem;
    font-weight: 700;
    color: #222;
    text-align: center;
    margin: 0 0 30px;
    line-height: 1.6;
}
.habit-selector {
    max-width: 700px;
    margin: 0 auto;
    background-color: #fff;
    padding: 24px;
    border-radius: 8px;
}
.habit-selector__intro {
    font-size: 0.95rem;
    color: #555;
    margin: 0 0 20px;
    line-height: 1.6;
}
.habit-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.habit-option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background-color: #f9f9f9;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.2s;
}
.habit-option:hover {
    background-color: #eaeaea;
}
.habit-checkbox {
    width: 20px;
    height: 20px;
    accent-color: #ff6b35;
    cursor: pointer;
    flex-shrink: 0;
}
.habit-option__label {
    flex: 1;
    font-size: 0.95rem;
    color: #333;
    line-height: 1.6;
}
.habit-option__saving {
    font-size: 0.85rem;
    color: #1565c0;
    font-weight: 700;
    white-space: nowrap;
}
.habit-total {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 2px solid #1565c0;
    text-align: center;
}
.habit-total p {
    font-size: 1rem;
    color: #333;
    margin: 0;
    line-height: 1.6;
}
.total-amount {
    font-size: 1.5rem;
    font-weight: 700;
    color: #ff6b35;
}
.faq-section {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 24px;
}
.faq-section h2 {
    font-size: 1.6rem;
    font-weight: 700;
    color: #222;
    margin: 0 0 30px;
    line-height: 1.6;
}
.faq-item {
    margin-bottom: 24px;
}
.faq-item h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: #1565c0;
    margin: 0 0 8px;
    line-height: 1.6;
}
.faq-item p {
    font-size: 0.95rem;
    color: #555;
    margin: 0;
    line-height: 1.6;
}
.article-reminder {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 24px 40px;
}
.article-reminder p {
    font-size: 0.85rem;
    color: #777;
    line-height: 1.6;
}
.author-card {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 24px 60px;
}
.author-card__inner {
    display: flex;
    gap: 20px;
    align-items: center;
    padding: 24px;
    border-top: 2px solid #1565c0;
}
.author-card__avatar {
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}
.author-card__info {
    flex: 1;
    min-width: 0;
}
.author-card__name {
    display: block;
    font-size: 1.1rem;
    font-weight: 700;
    color: #222;
    line-height: 1.6;
}
.author-card__role {
    display: block;
    font-size: 0.85rem;
    color: #1565c0;
    margin-bottom: 8px;
    line-height: 1.6;
}
.author-card__bio {
    font-size: 0.9rem;
    color: #555;
    margin: 0;
    line-height: 1.6;
}
@media (max-width: 768px) {
    .article-hero {
        padding: 60px 20px 40px;
    }
    .article-hero h1 {
        font-size: 1.6rem;
    }
    .article-hero__subtitle {
        font-size: 1rem;
    }
    .article-hero__meta {
        flex-direction: column;
        gap: 8px;
    }
    .prose-section {
        padding: 0 20px 30px;
    }
    .prose-section h2 {
        font-size: 1.3rem;
    }
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    .comparison-table thead {
        display: none;
    }
    .comparison-table tbody tr {
        display: block;
        margin-bottom: 16px;
        border: 1px solid #ddd;
        border-radius: 8px;
        padding: 16px;
    }
    .comparison-table tbody td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 8px 0;
        border-bottom: 1px solid #eee;
    }
    .comparison-table tbody td:last-child {
        border-bottom: none;
    }
    .comparison-table tbody td::before {
        content: attr(data-label);
        font-weight: 700;
        color: #1565c0;
        margin-right: 16px;
        flex-shrink: 0;
    }
    .habit-option {
        flex-wrap: wrap;
    }
    .habit-option__saving {
        width: 100%;
        text-align: right;
        margin-top: 4px;
        padding-left: 32px;
    }
    .author-card__inner {
        flex-direction: column;
        text-align: center;
    }
    .faq-section {
        padding: 30px 20px;
    }
    .stats-section {
        padding: 40px 20px;
    }
    .calculator-section {
        padding: 40px 20px;
    }
    .comparison-section {
        padding: 30px 20px;
    }
}
@media (max-width: 480px) {
    .article-hero h1 {
        font-size: 1.4rem;
    }
    .stats-grid {
        grid-template-columns: 1fr;
    }
    .stat-number {
        font-size: 2rem;
    }
    .habit-selector {
        padding: 16px;
    }
    .habit-option {
        padding: 10px 12px;
    }
    .habit-option__saving {
        padding-left: 0;
    }
    .prose-section h2 {
        font-size: 1.2rem;
    }
}