.page-shell {
            width: 100%;
            max-width: 1120px;
            overflow-x: clip;
            margin: 0 auto;
            padding: 24px 16px 40px;
        }

        .preview-card,
        .controls-card {
            background: var(--paper);
            border: 1px solid var(--line);
            border-radius: 20px;
            box-shadow: var(--shadow);
        }

        .preview-card {
            background: linear-gradient(165deg, #fffefb 0%, #fcf8f1 100%);
            border-color: var(--line-soft);
            box-shadow: var(--shadow-soft);
        }

        .controls-card {
            box-shadow: 0 12px 28px rgba(40, 28, 18, 0.06);
        }


        .hero-subtitle {
            margin: 10px 0 16px;
            color: var(--text-soft);
            font-size: 1.02rem;
        }

        .instruction-list {
            margin: 0;
            padding-left: 20px;
            color: var(--text-main);
            line-height: 1.6;
        }

        .instruction-note {
            margin: 12px 0 0;
            color: var(--text-soft);
            font-size: 0.82rem;
        }

        .workspace {
            display: grid;
            grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.95fr);
            gap: 18px;
            min-width: 0;
            align-items: start;
        }

        .preview-card,
        .controls-card {
            padding: 18px;
            min-width: 0;
        }

        .preview-head h2,
        .controls-card h2 {
            margin: 0;
            font-size: 1.1rem;
        }

        .preview-head h2 {
            font-weight: 600;
            letter-spacing: 0.01em;
        }

        .preview-head p {
            margin: 8px 0 16px;
            color: var(--text-soft);
            font-size: 0.95rem;
            line-height: 1.45;
        }


        .zoom-row {
            display: flex;
            justify-content: flex-end;
            align-items: center;
            gap: 10px;
            min-width: 0;
            margin-top: 2px;
        }

        .zoom-row > button,
        .zoom-row > .fancybox-trigger {
            flex: 1 1 0;
            min-width: 0;
            margin-bottom: 0;
        }

        .fancybox-trigger {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 48px;
            border: 1px solid var(--line);
            border-radius: 12px;
            padding: 9px 14px;
            text-decoration: none;
            color: var(--text-main);
            background: var(--paper-strong);
            font-size: 0.92rem;
            font-weight: 600;
            transition: border-color 0.18s var(--motion-soft), background-color 0.18s var(--motion-soft), box-shadow 0.18s var(--motion-soft), transform 0.18s var(--motion-soft);
        }

        .fancybox-trigger:hover {
            border-color: #cab89f;
            background: #fdf8f1;
            box-shadow: 0 4px 10px rgba(40, 28, 18, 0.08);
            transform: translateY(-1px);
        }

        .fancybox-trigger:active {
            transform: translateY(0);
            box-shadow: 0 2px 7px rgba(40, 28, 18, 0.08);
        }

        .site-footer{
            text-align: center;
            font-size: .8rem;
            padding: 1rem 0 2rem;
        }