.rules-page {
    width: 100%;
    min-width: 0;
}

.rules-header-box,
.rules-content-box,
.rules-footer-box {
    width: 100%;
    min-width: 0;
    box-sizing: border-box;
    margin-bottom: 12px;
}

.rules-header-box h1 {
    margin: 0 0 8px;
}

.rules-header-box > p {
    margin: 0;
    line-height: 1.55;
}

.rules-version {
    margin-top: 10px;
    color: var(--color-text-muted);
    font-size: 13px;
}

.rules-jump-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 14px;
}

.rules-jump-nav a {
    display: inline-flex;
    align-items: center;
    min-height: 34px;
    box-sizing: border-box;
    padding: 6px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-small);
    background: var(--color-surface-light);
    color: inherit;
    text-decoration: none;
    font-weight: 700;
}

.rules-jump-nav a:hover {
    border-color: var(--color-primary);
}

.rules-content-box {
    scroll-margin-top: 18px;
}

.rules-section-title {
    margin-bottom: 12px;
}

.rules-section-title h2 {
    margin: 0 0 4px;
}

.rules-section-title p {
    margin: 0;
    color: var(--color-text-muted);
}

.rules-card {
    margin-bottom: 8px;
    padding: 12px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-small);
    background: var(--color-surface-light);
    line-height: 1.55;
}

.rules-card:last-child {
    margin-bottom: 0;
}

.rules-card h3 {
    margin: 0 0 7px;
    font-size: 17px;
}

.rules-card p {
    margin: 0 0 9px;
}

.rules-card p:last-child {
    margin-bottom: 0;
}

.rules-card-important {
    border-left: 4px solid #b32626;
}

.rules-card a {
    text-decoration: underline;
}

.rules-footer-box {
    line-height: 1.5;
}

@media (max-width: 760px) {
    .rules-card {
        padding: 10px 11px;
    }

    .rules-jump-nav {
        display: grid;
        grid-template-columns: minmax(0, 1fr);
    }
}