@media (max-width: 900px) {
    .hero {
        padding: 64px 0;
    }

    .hero-grid {
        grid-template-columns: 1fr;
    }

    .cards.three {
        grid-template-columns: 1fr;
    }

    .menu-toggle {
        display: flex;
    }

    .main-nav {
        position: absolute;
        left: 20px;
        right: 20px;
        top: 76px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        background: #ffffff;
        border: 1px solid #e5e7eb;
        border-radius: 18px;
        padding: 10px;
        box-shadow: 0 24px 70px rgba(15, 23, 42, .18);
    }

    .main-nav.open {
        display: flex;
    }

    .main-nav a {
        padding: 13px 14px;
    }

    .footer-grid {
        flex-direction: column;
    }
}

@media (max-width: 560px) {
    .container {
        width: min(100% - 28px, var(--container));
    }

    .header-inner {
        min-height: 68px;
    }

    .main-nav {
        top: 68px;
        left: 14px;
        right: 14px;
    }

    .hero,
    .section,
    .page-hero {
        padding-left: 0;
        padding-right: 0;
    }

    .hero-card,
    .card,
    .notice,
    .contact-box,
    .timeline-item {
        padding: 22px;
        border-radius: 18px;
    }

    .hero-actions {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }
}