/* 移动端响应式样式补充 */

/* 平板和小屏幕 */
@media (max-width: 768px) {
    /* 二维码调整 */
    .qr-group {
        gap: 2rem;
    }

    .qr-code-box img {
        object-fit: contain;
    }

    .qrcode-img img {
        width: 150px;
        height: 150px;
        object-fit: contain;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-description {
        font-size: 1.1rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .download-options {
        grid-template-columns: 1fr;
    }

    .contact-links {
        flex-direction: column;
        align-items: center;
    }

    .features-grid,
    .screenshots-grid,
    .tech-grid {
        grid-template-columns: 1fr;
    }
}

/* 超小屏幕优化 */
@media (max-width: 480px) {
    .qr-code-box img {
        object-fit: contain;
    }

    .qrcode-img img {
        width: 120px;
        height: 120px;
        object-fit: contain;
    }

    .hero-title {
        font-size: 2rem;
    }

    .title-sub {
        font-size: 1rem;
    }

    .hero-description {
        font-size: 1rem;
        line-height: 1.6;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .section-subtitle {
        font-size: 1rem;
    }

    .feature-card,
    .screenshot-card,
    .download-card,
    .tech-item {
        padding: 1.5rem;
    }

    .container {
        padding: 0 0.75rem;
    }
}