.sub-title {
    color: var(--colorPrimary);
    font-weight: var(--fontWeightBold);
    line-height: var(--lineHeightSm);
    margin-bottom: 10px;
}

.btn-group {
    display: flex;
    align-items: center;
}

.btn-group .btn.primary {
    padding: 0 40px;
}

.btn-left-group {
    display: flex;
    justify-content: flex-start;
    gap: 0 10px;
    margin-top: 40px;
}

.main-section {
    padding: 80px 0;
}

.main-title-group {
    display: flex;
    align-items: center;
    gap: 0 40px;
    margin-bottom: 40px;
}

.main-content-group {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: calc(100% - 657px);
}

.main-content-group p {
    margin-top: 0;
}

.main-content-group a img:hover {
    content: url(../images/main/orange-arrow.svg);
}

.animation-group {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    width: 100%;
    height: 480px;
    color: var(--colorWhite);
    background: url("../images/main/koreavpn-main.png") no-repeat;
}

.animation-group > p {
    font-weight: var(--fontWeightSemibold);
    line-height: var(--lineHeightSm);
    margin: 8px 0 20px 0;
}

@keyframes move-down {
    0% {
        transform: translateY(0);
        opacity: 1;
    }
    100% {
        transform: translateY(52px);
        opacity: 0.5;
    }
}

.vertical-line-box {
    position: relative;
    width: 2px;
    height: 52px;
    background-color: rgba(256, 256, 256, 0.3);
    overflow: hidden;
}

.vertical-line-box p {
    position: absolute;
    width: 2px;
    height: 26px;
    background-color: var(--colorWhite);
    animation: move-down 1.5s ease-in-out infinite;
}

.vertical-line-box span {
    display: none;
}

.quick-nav-box ul {
    display: grid;
    grid-template-columns: repeat(6, 100px);
    gap: 0 60px;
    justify-content: center;
    padding-top: 80px;
}

.quick-nav-box ul li {
    position: relative;
    cursor: pointer;
    text-align: center;
}

.quick-nav-box ul li .image-box {
    border: 1px solid var(--colorPrimary200);
    border-radius: var(--borderRadiusCircle);
    background-color: var(--colorPrimary100);
    padding: 26px;
}
.quick-nav-box ul li .image-box:hover {
    outline: 1px solid var(--colorPrimary);
    border: 1px solid var(--colorPrimary);
    background-color: var(--colorWhite);
}
.quick-nav-box ul li p {
    font-weight: var(--fontWeightSemibold);
    line-height: var(--lineHeightSm);
    margin-top: 10px;
}

.support-section {
    width: 100%;
    background: url("../images/main/koreavpn-deco-logo.png") no-repeat;
    background-position: 100% 100%;
    background-color: var(--colorPrimary);
    padding: 100px 0;
}

.support-section .content-inner {
    display: grid;
    grid-template-columns: 50% 50%;
}

.support-group {
    height: 388px;
    background-color: var(--colorWhite);
    padding: 60px;
}

.support-group:first-child {
    border-top-left-radius: var(--borderRadiusXl);
    border-bottom-left-radius: var(--borderRadiusXl);
    border-right: 1px solid var(--colorGray300);
}

.support-group:last-child {
    border-top-right-radius: var(--borderRadiusXl);
    border-bottom-right-radius: var(--borderRadiusXl);
}

.support-title-group {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.main-table-group {
    position: relative;
}

.main-table-group ul {
    display: flex;
    flex-direction: column;
    gap: 16px 0;
}

.main-table-group ul li {
    display: flex;
    justify-content: space-between;
}

.table-row-group {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.table-row-group > p {
    color: var(--colorGray400);
    font-size: var(--fontSizeSm);
    line-height: var(--lineHeightXs);
}

.table-title-group {
    display: flex;
    align-items: center;
    gap: 0 6px;
    width: calc(100% - 80px);
}

.table-title-group a {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.table-title-group a:hover {
    color: var(--colorGray700);
    font-weight: var(--fontWeightSemibold);
    text-decoration: underline;
    text-decoration-thickness: 2px;
    text-underline-offset: 2px;
    text-decoration-skip-ink: none;
}
.service-section {
    text-align: center;
    padding: 120px 0;
}

.service-box ul {
    position: relative;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(0, 1fr));
    gap: 0 40px;
    text-align: center;
    margin-top: 60px;
}

.service-box ul li {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    gap: 30px 0;
    border: 1px solid var(--colorGray300);
    border-radius: var(--borderRadiusXl);
    background-color: var(--colorWhite);
    padding: 60px;
    cursor: pointer;
}

.service-box ul li:hover {
    border: 1px solid var(--colorPrimary);
    outline: 1px solid var(--colorPrimary);
    box-shadow: 10px 10px 24px 0px rgba(0, 0, 0, 0.14);
}

.service-group img {
    margin-bottom: 30px;
}
.service-img-box {
    display: flex;
    align-items: center;
    justify-content: flex-end;
}
.service-box ul li:hover .service-img-box img {
    content: url(../images/main/orange-arrow.svg);
}

.section-group-br {
    display: none;
}

.check-section {
    width: 100%;
    padding: 80px 0;
    text-align: center;
    background: url("../images/main/ip-check-bg.png") no-repeat center/cover;
}

.check-title-group h2 {
    color: var(--colorWhite);
}

.check-title-group p:last-child {
    color: var(--colorWhite);
    line-height: var(--lineHeightSm);
    margin-top: 20px;
}

.check-search-group a {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 600px;
    border: 4px solid var(--colorPrimary);
    border-radius: var(--borderRadiusXl);
    background-color: var(--colorWhite);
    margin: 40px auto 0 auto;
    padding: 10px;
    cursor: pointer;
}

.check-search-group a > p {
    width: 335px;
    font-size: var(--fontSizeXl);
    font-weight: var(--fontWeightSemibold);
}

.check-search-group:hover img {
    content: url(../images/main/main-search-hover.svg);
}

.check-ip-group {
    display: flex;
    align-items: center;
}

.check-ip-group p {
    color: var(--colorPrimary);
    font-size: var(--fontSizeMd);
    font-weight: var(--fontWeightSemibold);
    padding: 0 40px;
    white-space: nowrap;
}

.check-ip-group span {
    width: 1px;
    height: 18px;
    background-color: var(--colorPrimary);
}

.about-section {
    text-align: center;
    padding: 120px 0;
}

.about-section ul {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    gap: 0 20px;
    margin-top: 60px;
}

.about-section ul li {
    display: flex;
    align-items: flex-end;
    justify-content: center;
    height: 480px;
    color: var(--colorWhite);
    font-size: var(--fontSizeXl);
    font-weight: var(--fontWeightBold);
    line-height: var(--lineHeightLg);
    border-radius: var(--borderRadiusXl);
    padding-bottom: 40px;
}

.about-section ul li:first-child {
    background: url("../images/main/marketing.png") no-repeat center/cover;
}

.about-section ul li:nth-child(2) {
    background: url("../images/main/operate.png") no-repeat center/cover;
}

.about-section ul li:nth-child(3) {
    background: url("../images/main/travel.png") no-repeat center/cover;
}

.about-section ul li:last-child {
    background: url("../images/main/erp.png") no-repeat center/cover;
}

.download-section {
    width: 100%;
    background-image: url("../images/main/koreavpn-deco-left-logo.png");
    background-repeat: no-repeat;
    background-position: 0% 100%;
    background-color: var(--colorGray100);
    padding: 120px 0 160px 0;
}

.download-section .content-inner {
    display: flex;
    gap: 0 60px;
}
.download-title-group {
    min-width: 500px;
}
.download-title-group .desc {
    margin-top: 20px;
}

.download-content-group ul {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.download-content-group ul li {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 30px 0;
    padding: 40px;
    border: 1px solid var(--colorGray300);
    border-radius: var(--borderRadiusXl);
    background-color: var(--colorWhite);
}

.download-content-group p:last-child {
    margin-top: 6px;
}

.download-text-box p:first-child {
    color: var(--colorPrimary);
    font-size: var(--fontSizeXl);
    font-weight: var(--fontWeightBold);
    line-height: var(--lineHeightLg);
}

.download-image-box {
    display: flex;
    justify-content: flex-end;
    gap: 0 6px;
}

.top {
    position: fixed;
    right: 40px;
    bottom: 40px;
    width: 48px;   /* 버튼 크기 강제 */
    height: 48px;
    background: url("/images/main/top.png") no-repeat;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: opacity .5s;
    z-index: 10;
}

.top.show {
    opacity: 1 !important;
    visibility: visible !important;
}

@media all and (max-width: 1520px) {
    .main-title-group {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px 0;
    }

    .main-content-group {
        width: 100%;
    }

    .animation-group {
        border-radius: var(--borderRadiusXl);
        background: url("../images/main/koreavpn-main.png") no-repeat center/cover;
    }

    .download-content-group ul {
        margin-top: 60px;
    }

    .download-text-box p:first-child {
        color: var(--colorPrimary);
        font-size: var(--fontSizeXl);
        font-weight: var(--fontWeightBold);
        line-height: var(--lineHeightLg);
    }

    .service-box ul li{
        padding: 60px 30px;
    }

}

@media all and (max-width: 1279px) {
    .main-title-group img {
        width: 32px;
        height: 32px;
    }

    .quick-nav-box ul {
        width: 100%;
        justify-content: space-between;
        gap: 0;
    }

    .support-section {
        background-image: none;
    }
    .support-section .content-inner {
        grid-template-columns: 100%;
    }

    .support-group:first-child {
        border-top-right-radius: var(--borderRadiusXl);
        border-bottom-left-radius: 0;
        border-right: 0;
        border-bottom: 1px solid var(--colorGray300);
    }

    .support-group:last-child {
        border-top-right-radius: 0;
        border-bottom-left-radius: var(--borderRadiusXl);
    }

    .support-group {
        height: auto;
        padding: 40px;
    }

    .support-table-box ul {
        gap: 14px 0;
    }
    .table-title-group a {
        width: 100%;
    }
    .service-section {
        padding: 100px 0;
    }

    .service-box ul {
        gap: 0 10px;
        margin-top: 40px;
    }

    .service-box ul li {
        gap: 20px 0;
        padding: 30px;
    }

    .service-group img {
        margin-bottom: 20px;
    }
    .service-img-box img {
        width: 32px;
        height: 32px;
    }

    .check-section {
        padding: 80px 0 96px 0;
    }

    .about-section {
        padding: 100px 0;
    }

    .about-section ul {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }

    .about-section ul li {
        padding-bottom: 20px;
    }

    .download-section {
        padding: 100px 0;
    }
    .download-section .content-inner {
        flex-direction: column;
    }
    .download-title-group {
        min-width: auto;
        width: 500px;
    }

    .top {
        right: 20px;
        bottom: 28px;
    }
}

@media all and (max-width: 1023px) {
    .section-group-br {
        display: none;
    }
}

@media all and (max-width: 767px) {
    .btn-left-group {
        width: 100%;
        margin-top: 30px;
    }
    .main-section {
        padding: 40px 0;
    }

    .main-section .desc br{
        display: none;
    }

    .main-title-group {
        gap: 10px 0;
        margin-bottom: 30px;
    }

    .main-content-group {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px 0;
    }

    .quick-nav-box ul {
        grid-template-columns: repeat(3, 100px);
        gap: 30px 0;
        padding-top: 40px;
    }

    .support-section {
        padding: 80px 0;
    }

    .support-title-group {
        margin-bottom: 15px;
    }

    .support-table-box ul {
        gap: 10px 0;
    }

    .support-table-box ul li {
        flex-direction: column;
        height: 50px;
    }
    .main-table-group ul {
        gap: 10px 0;
    }
    .table-row-group {
        flex-direction: column;
        align-items: flex-start;
        gap: 6px 0;
    }

    .table-row-group > p {
        font-size: var(--fontSizeXs);
    }

    .table-title-group {
        width: 100%;
    }

    .table-title-group p {
        font-size: var(--fontSizeSm);
        line-height: var(--lineHeightXs);
    }

    .support-group {
        padding: 30px;
    }

    .service-section {
        padding: 80px 0;
    }

    .service-box ul {
        grid-template-columns: 1fr;
        gap: 10px 0;
        margin-top: 30px;
    }
    .service-box ul li {
        gap: 15px 0;
    }
    .service-group .desc {
        margin-top: 10px;
    }

    .service-group img {
        margin-bottom: 15px;
    }

    .section-group-br {
        display: block;
    }

    .check-section {
        padding: 80px 0;
    }

    .check-title-group p:nth-child(3) {
        width: 265px;
        line-height: var(--lineHeightXs);
        margin: 10px auto 0 auto;
    }

    .check-search-group {
        width: 100%;
        margin: 30px auto 0 auto;
    }
    .check-search-group a {
        width: 100%;
        height: 68px;
        border: 2px solid var(--colorPrimary);
    }
    .check-ip-group > p {
        font-size: var(--fontSizeSm);
        padding: 0 10px;
    }

    .check-ip-group span{
        height: 20px;
    }

    .check-search-group a > p {
        width: 335px;
        font-size: var(--fontSizeBase);
    }
    .check-search-group img {
        width: 48px;
        height: 48px;
    }
    .about-section {
        padding: 80px 0;
    }

    .about-section ul {
        grid-template-columns: 1fr;
        gap: 10px 0;
        margin-top: 30px;
    }

    .download-section {
        background-image: none;
        padding: 80px 0;
    }

    .download-title-group {
        width: 100%;
        min-width: auto;
    }

    .download-title-group .desc {
        margin-top: 10px;
    }
    .download-content-group ul {
        display: grid;
        grid-template-columns: 1fr;
        gap: 10px;
        margin-top: 30px;
    }

    .download-content-group ul li {
        gap: 20px 0;
        width: 100%;
        padding: 30px;
    }

    .download-text-box p:first-child {
        font-size: var(--fontSizeMd);
        line-height: var(--lineHeightBase);
    }

    .top {
        bottom: 15px;
    }
}