:root {
    color-scheme: light;
    --brand: #004098;
    --ink: #101828;
    --muted: #667085;
    --surface: #fff;
    --surface-soft: #f5f8fc;
    --line: #e4e7ec;
    --content-width: 1200px;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    min-width: 320px;
    margin: 0;
    color: var(--ink);
    background: var(--surface);
    font-family: Pretendard, "Noto Sans KR", "Malgun Gothic", "Apple SD Gothic Neo", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    word-break: keep-all;
}

body.menu-open {
    overflow: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

button,
input,
textarea,
select {
    font: inherit;
}

button {
    cursor: pointer;
}

img {
    max-width: 100%;
    height: auto;
    vertical-align: middle;
}

ul,
ol {
    margin: 0;
    padding: 0;
    list-style: none;
}

h1,
h2,
h3,
p {
    margin-top: 0;
}

body > hr,
#wrapper + hr,
#container_wr > hr {
    display: none;
}

.sound_only,
.sr-only,
#hd_h1,
#gnb > h2,
#gnb_all > h2,
.gnb_1dli > .bg {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

#skip_to_container {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 20000;
    transform: translateY(-120%);
}

#skip_to_container:focus-within {
    transform: translateY(0);
}

#skip_to_container a {
    display: block;
    padding: 10px 16px;
    color: #fff;
    background: var(--brand);
}

#hd {
    position: sticky;
    top: 0;
    z-index: 1000;
    width: 100%;
    border-bottom: 1px solid rgba(16, 24, 40, 0.08);
    background: rgba(255, 255, 255, 0.94);
    transition: box-shadow 0.2s ease, background 0.2s ease;
}

#hd.is-scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 8px 24px rgba(16, 24, 40, 0.08);
}

#hd > .inner {
    display: flex;
    align-items: center;
    width: min(calc(100% - 48px), var(--content-width));
    min-height: 88px;
    margin: 0 auto;
}

#logo {
    flex: 0 0 auto;
}

#logo a {
    display: flex;
    align-items: center;
}

#gnb {
    display: flex;
    align-items: center;
    margin-left: auto;
}

.hd_login {
    display: flex;
    align-items: center;
    margin-right: 28px;
    color: var(--brand);
    font-size: 14px;
}

.gnb_wrap,
#gnb_1dul {
    display: flex;
    align-items: center;
}

.gnb_1dli {
    position: relative;
}

.gnb_1da,
.gnb_menu_btn {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 88px;
    padding: 0 24px;
    border: 0;
    color: #172033;
    background: transparent;
    font-size: 17px;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.gnb_1da:hover,
.gnb_1da:focus-visible {
    color: var(--brand);
}

.gnb_2dul {
    position: absolute;
    top: calc(100% - 1px);
    left: 50%;
    z-index: 50;
    min-width: 190px;
    padding-top: 10px;
    visibility: hidden;
    opacity: 0;
    transform: translate(-50%, -8px);
    transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s ease;
}

.gnb_1dli:hover .gnb_2dul,
.gnb_1dli:focus-within .gnb_2dul {
    visibility: visible;
    opacity: 1;
    transform: translate(-50%, 0);
}

.gnb_1dli:last-child .gnb_2dul {
    right: 0;
    left: auto;
    transform: translateY(-8px);
}

.gnb_1dli:last-child:hover .gnb_2dul,
.gnb_1dli:last-child:focus-within .gnb_2dul {
    transform: translateY(0);
}

.gnb_2dul_box {
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 16px 36px rgba(16, 24, 40, 0.14);
}

.gnb_2da {
    display: block;
    padding: 14px 18px;
    color: #344054;
    text-align: center;
    white-space: nowrap;
}

.gnb_2da:hover,
.gnb_2da:focus-visible {
    color: #fff;
    background: var(--brand);
}

.gnb_menu_btn {
    width: 64px;
    padding: 0 18px;
}

.hamburger-btn {
    display: grid;
    width: 28px;
    gap: 6px;
}

.hamburger-btn span {
    display: block;
    width: 100%;
    height: 2px;
    border-radius: 2px;
    background: #172033;
}

#gnb_all {
    position: fixed;
    top: 50%;
    left: 50%;
    z-index: 1101;
    display: none;
    width: min(calc(100% - 40px), 780px);
    padding: 52px;
    border-radius: 24px;
    background: #fff;
    box-shadow: 0 28px 80px rgba(0, 20, 52, 0.28);
    transform: translate(-50%, -50%);
}

#gnb_all.is-open,
#gnb_all_bg.is-open {
    display: block;
}

.gnb_close_btn {
    position: absolute;
    top: 22px;
    right: 22px;
    width: 44px;
    height: 44px;
    border: 0;
    border-radius: 50%;
    background: var(--surface-soft);
}

.close-btn {
    position: relative;
    width: 20px;
    height: 20px;
    margin: auto;
}

.close-btn span {
    position: absolute;
    top: 9px;
    left: 0;
    width: 20px;
    height: 2px;
    background: #172033;
}

.close-btn span:first-child {
    transform: rotate(45deg);
}

.close-btn span:last-child {
    transform: rotate(-45deg);
}

.gnb_al_ul {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.gnb_al_li {
    min-height: 150px;
    padding: 24px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: var(--surface-soft);
}

.gnb_al_a {
    display: block;
    margin-bottom: 16px;
    color: var(--brand);
    font-size: 22px;
    font-weight: 800;
}

.gnb_al_li li a {
    color: #475467;
}

.gnb_al_li li a:hover {
    color: var(--brand);
}

#gnb_all_bg {
    position: fixed;
    inset: 0;
    z-index: 1100;
    display: none;
    background: rgba(9, 20, 38, 0.58);
    backdrop-filter: blur(3px);
}

#wrapper,
#container_wr {
    width: 100%;
}

.main {
    overflow: hidden;
}

.main > .inner {
    width: min(calc(100% - 48px), var(--content-width));
    margin: 0 auto;
}

.mainVisual {
    padding: 28px 0 0;
    background: linear-gradient(180deg, #f4f8fd 0%, #fff 100%);
}

.mainVisual img {
    width: min(80%, 1500px) !important;
}

.section {
    position: relative;
}

.section-1 {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(420px, 0.8fr);
    align-items: center;
    min-height: 500px;
    gap: 64px;
    padding: 80px 0;
}

.section-1 h2,
.section-2 h2,
.section-3 h2,
.section-5 h2 {
    margin-bottom: 24px;
    color: #101828;
    font-size: clamp(30px, 3vw, 48px);
    line-height: 1.25;
    letter-spacing: -0.04em;
}

.section-1 .text > p,
.section-2 .text > p,
.section-3 .text > p,
.section-5 .text > p {
    color: var(--muted);
    font-size: 18px;
    line-height: 1.8;
}

.circle-tags {
    position: relative;
    display: flex;
    justify-content: center;
    min-height: 300px;
}

.circle-tags li {
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 190px;
    height: 190px;
    border: 1px solid rgba(0, 64, 152, 0.18);
    border-radius: 50%;
    color: var(--brand);
    background: rgba(238, 246, 255, 0.8);
    text-align: center;
    font-size: 18px;
    font-weight: 800;
    line-height: 1.5;
    box-shadow: 0 20px 44px rgba(0, 64, 152, 0.1);
}

.circle-tags .tag-left {
    top: 70px;
    left: 0;
}

.circle-tags .tag-center {
    top: 0;
    left: 50%;
    z-index: 2;
    color: #fff;
    background: linear-gradient(145deg, #0c6fd6, var(--brand));
    transform: translateX(-50%);
}

.circle-tags .tag-right {
    top: 70px;
    right: 0;
}

.section-2,
.section-3 {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: center;
    gap: 72px;
    padding: 96px 0;
}

.section-2 .image,
.section-3 .image {
    overflow: hidden;
    border-radius: 28px;
    background: var(--surface-soft);
    box-shadow: 0 20px 50px rgba(16, 24, 40, 0.09);
}

.section-2 .image img,
.section-3 .image img {
    display: block;
    width: 100%;
}

.section-3 {
    border-top: 1px solid var(--line);
}

.section-4 {
    overflow: hidden;
    min-height: 560px;
    margin: 72px 0;
    padding: 80px 8%;
    border-radius: 32px;
    color: #fff;
    background: #071a31;
}

.section-4 > h2,
.section-4 > p {
    position: relative;
    z-index: 2;
}

.section-4 > h2 {
    margin-bottom: 10px;
    font-size: clamp(38px, 5vw, 64px);
}

.section-4 > p {
    font-size: 20px;
}

.section-4 .image {
    position: absolute;
    inset: 0;
}

.section-4 .image::after {
    position: absolute;
    inset: 0;
    content: "";
    background: linear-gradient(90deg, rgba(2, 17, 35, 0.88), rgba(2, 17, 35, 0.18));
}

.section-4 .image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.section-5 {
    margin: 80px 0 120px;
}

.section-5bg {
    min-height: 440px;
    padding: 96px 8%;
    border-radius: 32px;
    color: #fff;
    background: linear-gradient(90deg, rgba(0, 35, 83, 0.92), rgba(0, 35, 83, 0.45)), url("/img/section-4bg.jpg") center / cover no-repeat;
}

.section-5bg h2,
.section-5bg p {
    max-width: 680px;
    color: #fff !important;
}

.section-5bg a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 136px;
    margin-top: 24px;
    padding: 13px 22px;
    border: 1px solid rgba(255, 255, 255, 0.7);
    border-radius: 999px;
    color: #fff;
    font-weight: 700;
    transition: color 0.2s ease, background 0.2s ease;
}

.section-5bg a:hover {
    color: var(--brand);
    background: #fff;
}

#top_btn {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 900;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border: 0;
    border-radius: 50%;
    color: #fff;
    background: var(--brand);
    box-shadow: 0 10px 24px rgba(0, 64, 152, 0.3);
    font-size: 22px;
    opacity: 0;
    pointer-events: none;
    transform: translateY(12px);
    transition: opacity 0.2s ease, transform 0.2s ease;
}

#top_btn.is-visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

@media (max-width: 900px) {
    #hd > .inner {
        width: min(calc(100% - 32px), var(--content-width));
        min-height: 72px;
    }

    #logo img {
        height: 42px !important;
    }

    .hd_login,
    .gnb_1dli:not(.gnb_mnal) {
        display: none;
    }

    .gnb_1da,
    .gnb_menu_btn {
        min-height: 72px;
    }

    .gnb_menu_btn {
        width: 52px;
        padding: 0 10px;
    }

    #gnb_all {
        padding: 68px 28px 32px;
    }

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

    .gnb_al_li {
        min-height: auto;
    }

    .section-1 {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .section-1 .text {
        text-align: center;
    }

    .circle-tags {
        width: min(100%, 520px);
        margin: 0 auto;
    }

    .section-2,
    .section-3 {
        grid-template-columns: 1fr;
        gap: 36px;
        padding: 64px 0;
    }

    .section-3 .text {
        order: 2;
    }

    .section-3 .image {
        order: 1;
    }
}

@media (max-width: 600px) {
    body {
        word-break: normal;
    }

    .main > .inner {
        width: min(calc(100% - 32px), var(--content-width));
    }

    .mainVisual {
        padding-top: 16px;
    }

    .mainVisual img {
        width: 100% !important;
    }

    .subcont .product img {
        max-width: 100% !important;
    }

    .section-1 {
        min-height: auto;
        padding: 56px 0;
    }

    .section-1 h2,
    .section-2 h2,
    .section-3 h2,
    .section-5 h2 {
        font-size: 30px;
    }

    .circle-tags {
        min-height: 240px;
    }

    .circle-tags li {
        width: 138px;
        height: 138px;
        font-size: 14px;
    }

    .circle-tags .tag-left,
    .circle-tags .tag-right {
        top: 80px;
    }

    .section-2,
    .section-3 {
        padding: 52px 0;
    }

    .section-4,
    .section-5bg {
        min-height: 420px;
        border-radius: 20px;
    }

    .section-4 {
        margin: 40px 0;
        padding: 56px 24px;
    }

    .section-5 {
        margin: 40px 0 72px;
    }

    .section-5bg {
        padding: 64px 24px;
    }

    #top_btn {
        right: 16px;
        bottom: 16px;
    }
}