/* ── 主區塊：截圖 + QR code ── */
.app-main-row {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 32px;
    max-width: 1100px;
    margin: 0 auto 40px;
}

/* 4 張手機截圖 */
.app-screenshots {
    display: flex;
    gap: 12px;
}

    .app-screenshots img {
        width: calc(25% - 9px);
        max-width: 220px;
        border-radius: 16px;
        box-shadow: 0 8px 24px rgba(0,0,0,0.12);
        object-fit: cover;
    }

/* QR code 區塊 - 固定在畫面右側 */
.app-qr-col {
    position: fixed;
    right: 20px;
    top: 30%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 20px;
    z-index: 1000;
}

.app-qr-card {
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 4px 14px rgba(0,0,0,0.1);
    padding: 16px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    min-width: 160px;
    transition: box-shadow 0.2s ease, transform 0.2s ease;
    text-decoration: none;
    color: inherit;
}

    .app-qr-card:hover {
        box-shadow: 0 8px 20px rgba(0,0,0,0.15);
        transform: translateY(-2px);
    }

    .app-qr-card img {
        width: 110px;
        height: 110px;
        border-radius: 8px;
    }

.app-qr-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: #2d3748;
    display: flex;
    align-items: center;
    gap: 4px;
}

    .app-qr-label i {
        color: #3730a3;
    }

/* ── 功能特色區塊 ── */
.app-features {
    max-width: 380px;
    margin: 0 auto;
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
    padding: 28px 36px;
}

.app-features-title {
    font-size: 1rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 18px;
}

.app-features-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px 32px;
}

.app-feature-item {
    font-size: 0.95rem;
    color: #4a5568;
    display: flex;
    align-items: center;
    gap: 6px;
}

    .app-feature-item::before {
        content: '★';
        color: #3730a3;
        font-size: 0.75rem;
        flex-shrink: 0;
    }

/* ── RWD ── */
@media (max-width: 768px) {
    .app-main-row {
        flex-direction: column;
        align-items: center;
    }

    .app-qr-col {
        position: static;
        transform: none;
        flex-direction: row;
        justify-content: center;
        margin-top: 30px;
    }

    .app-screenshots img {
        max-width: 160px;
    }

    .app-features-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .app-screenshots {
        gap: 8px;
    }

        .app-screenshots img {
            max-width: 120px;
        }
}