.pkg-page-header {
    margin-bottom: 1.5rem;
}

.pkg-page-header h1 {
    margin-bottom: 0.25rem;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
}

.pkg-page-header p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.pkg-system-group {
    margin-bottom: 2rem;
}

.pkg-system-header {
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
    margin-bottom: 0.8rem;
    padding-bottom: 0.9rem;
    border-bottom: 2px solid var(--text-primary);
}

.pkg-system-header > .material-symbols-rounded {
    color: var(--primary-dark);
    font-size: 1.7rem;
}

.pkg-system-header h2 {
    margin-bottom: 0.25rem;
    font-size: 1.25rem;
}

.pkg-system-header p {
    color: var(--text-secondary);
    font-size: 0.87rem;
}

.pkg-hybrid-group .pkg-system-header > .material-symbols-rounded {
    color: #D97706;
}

.pkg-accordion {
    margin-bottom: 0.7rem;
    overflow: hidden;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--lift);
}

.pkg-accordion summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    min-height: 68px;
    padding: 0.8rem 1rem;
    cursor: pointer;
    list-style: none;
    transition: color var(--transition-base), background var(--transition-base);
}

.pkg-accordion summary::-webkit-details-marker {
    display: none;
}

.pkg-accordion summary > span:first-child {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.pkg-accordion summary strong {
    color: var(--text-primary);
    font-size: 0.95rem;
}

.pkg-accordion summary small {
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 500;
}

.pkg-accordion summary > .material-symbols-rounded {
    color: var(--text-muted);
    transition: transform var(--transition-base), color var(--transition-base);
}

.pkg-accordion summary:hover,
.pkg-accordion summary:focus-visible {
    background: var(--primary-light);
}

.pkg-accordion summary:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: -2px;
}

.pkg-accordion[open] summary {
    border-bottom: 1px solid var(--border-light);
}

.pkg-accordion[open] summary > .material-symbols-rounded {
    color: var(--primary-dark);
    transform: rotate(180deg);
}

.pkg-accordion-body {
    padding: 1rem;
}

.pkg-table-wrapper {
    position: relative;
    overflow: hidden;
    overflow-x: auto;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    -webkit-overflow-scrolling: touch;
}

.pkg-table-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: 2px;
    background: var(--primary);
    opacity: 0;
    pointer-events: none;
}

.pkg-table-wrapper.is-scrollable:not(.scrolled-end)::after {
    opacity: 1;
}

.pkg-table {
    width: 100%;
    border-collapse: collapse;
    white-space: nowrap;
    font-size: 0.84rem;
}

.pkg-table thead {
    background: var(--primary-dark);
}

.pkg-table th {
    padding: 0.8rem 1rem;
    color: var(--on-primary);
    font-size: 0.72rem;
    font-weight: 650;
    letter-spacing: 0.045em;
    text-align: left;
    text-transform: uppercase;
}

.pkg-table td {
    padding: 0.75rem 1rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-light);
}

.pkg-table tbody tr:nth-child(even) {
    background: var(--row-stripe);
}

.pkg-table tbody tr:hover {
    background: var(--primary-light);
}

.pkg-table tbody tr:last-child td {
    border-bottom: 0;
}

.pkg-table td:first-child {
    color: var(--text-primary);
    font-weight: 700;
}

.pkg-table td:nth-child(2) {
    color: var(--primary-dark);
    font-weight: 700;
}

.pkg-note {
    margin-top: 0.9rem;
    padding: 0.85rem 1rem;
    color: var(--warning-text);
    background: var(--warning-bg);
    border: 1px solid var(--warning-border);
    border-left: 3px solid var(--warning-text);
    font-size: 0.81rem;
    line-height: 1.55;
}

.pkg-section-block {
    margin: 2.25rem 0;
}

.pkg-section-title {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    margin-bottom: 0.8rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--text-primary);
    font-size: 1.15rem;
}

.pkg-title-icon {
    color: var(--primary-dark);
    font-size: 1.35rem;
}

.pkg-card {
    padding: 1.15rem;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
}

.pkg-addon-intro {
    margin-bottom: 1rem;
    padding-bottom: 0.9rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-light);
    font-size: 0.87rem;
}

.pkg-addon-list {
    display: grid;
    gap: 0.75rem;
}

.pkg-addon-item {
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
    padding: 0.85rem;
    background: var(--bg-body);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
}

.pkg-addon-number {
    display: grid;
    flex: 0 0 26px;
    place-items: center;
    width: 26px;
    height: 26px;
    color: var(--on-primary);
    background: var(--primary);
    border-radius: 50%;
    font-size: 0.72rem;
    font-weight: 700;
}

.pkg-addon-content {
    min-width: 0;
}

.pkg-addon-content > strong {
    display: block;
    margin-bottom: 0.25rem;
    font-size: 0.86rem;
}

.pkg-addon-content p {
    color: var(--text-secondary);
    font-size: 0.8rem;
    line-height: 1.55;
}

.pkg-addon-example {
    display: block;
    margin-top: 0.4rem;
    color: var(--text-muted);
    font-size: 0.74rem;
    font-style: italic;
}

.pkg-highlight {
    color: var(--primary-dark);
}

@media (max-width: 768px) {
    .pkg-page-header {
        margin-bottom: 1.25rem;
    }

    .pkg-accordion-body {
        padding: 0.75rem;
    }

    .pkg-table th,
    .pkg-table td {
        padding: 0.65rem 0.75rem;
    }

    .pkg-table th:first-child,
    .pkg-table td:first-child {
        position: sticky;
        left: 0;
        z-index: 2;
    }

    .pkg-table th:first-child {
        background: var(--primary-dark);
    }

    .pkg-table tbody tr:nth-child(odd) td:first-child {
        background: var(--bg-card);
    }

    .pkg-table tbody tr:nth-child(even) td:first-child {
        background: var(--row-stripe);
    }
}

@media (max-width: 480px) {
    .pkg-system-header h2 {
        font-size: 1.08rem;
    }

    .pkg-accordion summary {
        min-height: 62px;
        padding: 0.75rem;
    }

    .pkg-accordion summary strong {
        font-size: 0.88rem;
    }

    .pkg-table-wrapper {
        overflow: visible;
        border: 0;
    }

    .pkg-table-wrapper::after,
    .pkg-table thead {
        display: none;
    }

    .pkg-table,
    .pkg-table tbody,
    .pkg-table tr,
    .pkg-table td {
        display: block;
        width: 100%;
        white-space: normal;
    }

    .pkg-table tbody tr {
        margin-bottom: 0.6rem;
        padding: 0.7rem 0.85rem;
        background: var(--bg-card) !important;
        border: 1px solid var(--border-light);
        border-radius: var(--radius-lg);
    }

    .pkg-table td {
        position: static !important;
        display: flex;
        justify-content: space-between;
        gap: 1rem;
        padding: 0.28rem 0;
        background: transparent !important;
        border: 0;
        font-size: 0.78rem;
        text-align: right;
    }

    .pkg-table td::before {
        content: attr(data-label);
        color: var(--text-muted);
        font-size: 0.66rem;
        font-weight: 700;
        letter-spacing: 0.04em;
        text-align: left;
        text-transform: uppercase;
    }

    .pkg-table td:first-child {
        margin-bottom: 0.2rem;
        padding-bottom: 0.45rem;
        color: var(--primary-dark);
        border-bottom: 1px solid var(--border-light);
        font-size: 0.92rem;
    }

    .pkg-table td:first-child::before {
        content: 'System';
    }

    .pkg-card {
        padding: 0.8rem;
    }

    .pkg-addon-item {
        padding: 0.7rem;
    }
}