/* ============================================
   탄베이오첸 - Responsive
   ============================================ */

@media (max-width: 1024px) {
    .proc-list {
        grid-template-columns: repeat(3, 1fr);
    }

    .proc-item:nth-child(4) {
        border-left: none;
        padding-left: 0;
    }

    .sec-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .sec-card:nth-child(4n) {
        border-right: 1px solid var(--border);
    }

    .sec-card:nth-child(2n) {
        border-right: none;
    }

    .tab-body.on {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --header-h: 52px;
    }

    .wrap {
        padding: 0 20px;
    }

    /* NAV */
    .gnb-nav {
        display: none;
    }

    .gnb-open {
        display: block;
    }

    /* HERO */
    .hero {
        padding: 120px 0 60px;
    }

    .hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero h1 {
        font-size: 28px;
    }

    .hero p {
        font-size: 15px;
    }

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

    .link-btn {
        text-align: center;
        justify-content: center;
    }

    /* SECTIONS */
    .sec {
        padding: 48px 0;
    }

    .sec-title {
        font-size: 24px;
    }

    /* ABOUT */
    .about-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    /* PROCESS */
    .proc-list {
        grid-template-columns: 1fr 1fr;
    }

    .proc-item {
        border-left: none;
        padding-left: 0;
        border-bottom: 1px solid var(--border);
        padding-bottom: 20px;
        margin-bottom: 0;
    }

    .proc-item:last-child {
        border-bottom: none;
    }

    /* TABS */
    .tab-nav {
        flex-wrap: wrap;
    }

    .tab-nav button {
        flex: 1;
        text-align: center;
        padding: 12px 12px;
        font-size: 13px;
    }

    .tab-body.on {
        grid-template-columns: 1fr;
    }

    .tab-img {
        display: none;
    }

    /* SECURITY */
    .sec-grid {
        grid-template-columns: 1fr;
    }

    .sec-card {
        border-right: none !important;
    }

    /* CONTACT */
    .contact-row {
        flex-direction: column;
        gap: 20px;
        align-items: center;
        text-align: center;
    }

    /* FOOTER */
    .ft .wrap {
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
    }

    .ft-left {
        flex-direction: column;
        gap: 2px;
    }

    .ft-left span::after {
        display: none;
    }

    /* PAGE TOP */
    .page-top {
        padding-top: calc(var(--header-h) + 32px);
        padding-bottom: 24px;
    }

    .page-top h1 {
        font-size: 24px;
    }
}