:root {
            --primary-color: #005a9c;
            --background-color: #f0f2f5;
            --card-background: #ffffff;
            --text-color: #1f2937;
            --muted-color: #6b7280;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
            background: var(--background-color);
            color: var(--text-color);
            padding: 28px 16px 48px;
        }
        .layout {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            gap: 20px;
            align-items: flex-start;
        }
        .layout.no-ads {
            max-width: 900px;
        }
        .page {
            background: var(--card-background);
            border-radius: 14px;
            padding: 24px;
            box-shadow: 0 10px 28px rgba(15, 23, 42, 0.08);
            flex: 1;
        }
        h1 {
            color: var(--primary-color);
            margin-bottom: 16px;
            font-size: 1.7rem;
        }
        .services-accordion {
            display: grid;
            gap: 12px;
        }
        .service-tab {
            border-radius: 12px;
            border: 1px solid #d9e2ef;
            overflow: hidden;
            background: #ffffff;
        }
        .service-tab summary {
            list-style: none;
            cursor: pointer;
            padding: 14px 18px;
            font-weight: 700;
            color: #102a43;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            background: #f8fbff;
        }
        .service-tab summary::after {
            content: "+";
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--primary-color);
        }
        .service-tab[open] summary::after {
            content: "\2013";
        }
        .service-tab summary::-webkit-details-marker {
            display: none;
        }
        .service-panel {
            padding: 14px 18px 18px;
            color: var(--text-color);
            font-size: 0.98rem;
            line-height: 1.6;
        }
        .service-placeholder {
            color: var(--muted-color);
            font-style: italic;
        }
        .back-link {
            display: inline-block;
            margin-top: 18px;
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 600;
        }
        .ads-bar {
            width: 260px;
            background: var(--card-background);
            border: 1px solid #d7dce3;
            border-radius: 12px;
            padding: 16px;
            box-shadow: 0 8px 24px rgba(0,0,0,0.08);
        }
        .ad-card {
            border: 1px solid #e1e6ee;
            border-radius: 10px;
            padding: 10px;
            margin-bottom: 12px;
            background: #fafbfd;
        }
        .ad-card img {
            width: 100%;
            display: block;
            border-radius: 8px;
        }
        .ad-card p {
            margin: 8px 0 0;
            font-size: 0.95rem;
        }
        @media (max-width: 900px) {
            .layout {
                flex-direction: column;
            }
            .ads-bar {
                width: 100%;
            }
        }