.feature-list {
        display: flex;
        flex-direction: column;
        gap: 16px;
        margin: 24px 0;
    }

    .feature-item {
        display: flex;
        gap: 16px;
        padding: 16px;
        background: var(--color-background);
        border-radius: 12px;
        align-items: flex-start;
    }

    .feature-icon {
        font-size: var(--font-size-5xl, 28px);
        flex-shrink: 0;
    }

    .feature-content h4 {
        margin: 0 0 var(--spacing-sm) 0;
        font-size: var(--font-size-sm, 14px);
        color: var(--color-secondary);
    }

    .feature-content p {
        margin: 0;
        font-size: var(--font-size-xs, 12px);
        color: var(--color-text-muted);
    }

    .architecture-two-paths {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 16px;
        margin: 16px 0;
    }
    .arch-path {
        border: 1px solid var(--color-border);
        border-radius: 12px;
        overflow: hidden;
    }
    .arch-path-title {
        font-size: var(--font-size-sm, 14px);
        font-weight: var(--font-weight-semibold, 600);
        padding: 10px 16px;
        background: var(--color-background);
        border-bottom: 1px solid var(--color-border);
    }
    @media (max-width: 575px) {
        .architecture-two-paths { grid-template-columns: 1fr; }
    }

    .architecture-diagram {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-sm);
        margin: 24px 0;
        padding: 24px;
        background: var(--color-background);
        border-radius: 12px;
    }

    .arch-level {
        width: 100%;
        max-width: 400px;
    }

    .arch-box {
        padding: 16px 20px;
        border-radius: var(--border-radius-sm);
        text-align: center;
        border: 2px solid;
    }

    .arch-box.primary {
        background: linear-gradient(135deg, var(--color-success) 0%, var(--color-success) 100%);
        border-color: var(--color-success);
        color: var(--color-white, var(--color-hero-text, #fff));
    }

    .arch-box.secondary {
        background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary) 100%);
        border-color: var(--color-primary);
        color: var(--color-white, var(--color-hero-text, #fff));
    }

    .arch-box.tertiary {
        background: linear-gradient(135deg, var(--color-warning) 0%, var(--color-warning) 100%);
        border-color: var(--color-warning);
        color: var(--color-white, var(--color-hero-text, #fff));
    }

    .arch-box.quaternary {
        background: linear-gradient(135deg, var(--color-info) 0%, var(--color-info) 100%);
        border-color: var(--color-info);
        color: var(--color-white, var(--color-hero-text, #fff));
    }

    .arch-box strong {
        display: block;
        font-size: var(--font-size-base, 16px);
        margin-bottom: 4px;
    }

    .arch-box small {
        font-size: var(--font-size-xs, 12px);
        opacity: 0.9;
    }

    .arch-arrow {
        font-size: var(--font-size-3xl, 24px);
        color: var(--color-text-muted);
        font-weight: var(--font-weight-bold, 700);
    }

    .recipients-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 20px;
        margin: 24px 0;
    }

    .recipient-card {
        padding: 24px;
        border-radius: 12px;
        text-align: center;
    }

    .recipient-card.provider {
        background: linear-gradient(135deg, var(--color-info-bg) 0%, var(--color-info-bg) 100%);
        border: 1px solid var(--color-info-bg);
    }

    .recipient-card.user {
        background: linear-gradient(135deg, var(--color-error-bg) 0%, var(--color-background) 100%);
        border: 1px solid var(--color-error);
    }

    .recipient-icon {
        font-size: var(--font-size-7xl, 40px);
        margin-bottom: 12px;
    }

    .recipient-card h3 {
        margin: 0 0 var(--spacing-sm) 0;
        font-size: var(--font-size-base, 16px);
        color: var(--color-secondary);
    }

    .recipient-card p {
        margin: 0;
        font-size: var(--font-size-xs, 12px);
        color: var(--color-text);
    }

    .currency-example {
        text-align: center;
        padding: 24px;
        background: var(--color-background);
        border-radius: 12px;
        margin: 20px 0;
    }

    .currency-main {
        font-size: var(--font-size-6xl, 32px);
        font-weight: var(--font-weight-bold, 700);
        color: var(--color-secondary);
        margin-bottom: var(--spacing-sm);
    }

    .currency-secondary {
        font-size: var(--font-size-lg, 18px);
        font-weight: var(--font-weight-medium, 500);
        color: var(--color-text-muted);
    }

    .currency-list {
        margin: 16px 0;
        padding-left: 20px;
    }

    .currency-list li {
        margin-bottom: var(--spacing-sm);
        font-size: var(--font-size-sm, 14px);
    }

    .statuses-list {
        display: flex;
        flex-direction: column;
        gap: 16px;
        margin: 24px 0;
    }

    .status-item {
        display: flex;
        align-items: center;
        gap: 16px;
        padding: 12px 16px;
        border-radius: var(--border-radius-sm);
        background: var(--color-background);
    }

    .library-status-cell {
        display: inline-block;
        min-width: 100px;
        text-align: center;
    }

    .status-item p {
        margin: 0;
        font-size: var(--font-size-sm, 14px);
        color: var(--color-text);
    }

    .visibility-table {
        width: 100%;
        border-collapse: collapse;
        margin: 20px 0;
        background: var(--color-card-background);
        border-radius: var(--border-radius-sm);
        overflow: hidden;
        box-shadow: var(--shadow-sm, 0 1px 3px rgba(0,0,0,0.1));
    }

    .visibility-table th,
    .visibility-table td {
        padding: 12px 16px;
        text-align: left;
        border-bottom: 1px solid var(--color-border);
    }

    .visibility-table th {
        background: var(--color-background);
        font-weight: var(--font-weight-semibold, 600);
        font-size: var(--font-size-xs, 12px);
        color: var(--color-text);
    }

    .visibility-table td {
        font-size: var(--font-size-sm, 14px);
    }

    .note-block {
        border-radius: var(--border-radius-sm);
        padding: 16px;
        margin: 20px 0;
        font-size: var(--font-size-sm, 14px);
        border: 1px solid;
    }

    .note-block.warning {
        background: var(--color-warning-bg);
        border-color: var(--color-warning);
        color: var(--color-warning-dark);
    }

    .note-block.info {
        background: var(--color-info-bg);
        border-color: var(--color-info);
        color: var(--color-info-dark);
    }

    .note-block:not(.warning):not(.info) {
        background: var(--color-warning-bg);
        border-color: var(--color-warning);
        color: var(--color-warning-dark);
    }

    .format-list {
        margin: 16px 0;
        padding-left: 20px;
    }

    .format-list li {
        margin-bottom: var(--spacing-sm);
        font-size: var(--font-size-sm, 14px);
    }

    .code-block {
        background: var(--color-background);
        border: 1px solid var(--color-border-light);
        border-radius: var(--border-radius-sm);
        padding: 16px;
        font-family: monospace;
        font-size: var(--font-size-xs, 12px);
        overflow-x: auto;
        white-space: pre;
        margin: 16px 0;
    }

    @media (max-width: 575px) {
        .feature-item {
            flex-direction: column;
            text-align: center;
        }

        .status-item {
            flex-direction: column;
            text-align: center;
        }

        .visibility-table {
            font-size: var(--font-size-xs, 12px);
        }

        .visibility-table th,
        .visibility-table td {
            padding: var(--spacing-sm) var(--spacing-sm);
        }

        .arch-box {
            padding: 12px 16px;
        }

        .arch-box strong {
            font-size: var(--font-size-sm, 14px);
        }
    }