@import url("https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700&family=Noto+Serif+KR:wght@400;500;600;700&family=Poppins:wght@300;400;500&display=swap");

/* ===== 디자인 토큰 ===== */
:root {
    --navy: #0a192f;
    --navy-deep: #06101f;
    --gold: #d4af37;
    --gold2: #f1d98a;
    --alert: #f08a80; /* 입력 오류 안내 (남색 배경에서 잘 보이는 차분한 빨강) */
    --paper: #f8f9fa;
    --ink: #17283d;
    --muted: #67737f;
    --line: rgba(10, 25, 47, 0.14);
    --line-dark: rgba(248, 249, 250, 0.2);
    --serif: "Noto Serif KR", Georgia, serif;
    --sans: "Manrope", "Noto Sans KR", Arial, sans-serif;
    --poppins: "Poppins", "Manrope", sans-serif;
}

/* ===== 기본 ===== */
* {
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
}
body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: var(--sans);
    font-size: 16px;
    line-height: 1.75;
    letter-spacing: -0.025em;
    word-break: keep-all;
}
a {
    color: inherit;
    text-decoration: none;
}
button,
input,
textarea,
select {
    font: inherit;
}
button {
    cursor: pointer;
}
.skip-link {
    position: absolute;
    top: -55px;
    left: 15px;
    z-index: 50;
    background: var(--gold);
    color: var(--navy);
    padding: 10px 18px;
}
.skip-link:focus {
    top: 15px;
}

/* ===== 공통 요소 ===== */
.eyebrow {
    font-size: 11px;
    letter-spacing: 0.18em;
    color: var(--gold2);
    font-weight: 700;
    margin: 0 0 22px;
    text-transform: uppercase;
}
.eyebrow.dark {
    color: #9a781f;
}
.gold-button,
.outline-button {
    display: inline-flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
    padding: 13px 18px;
    min-height: 50px;
    font-size: 13px;
    font-weight: 700;
    transition: 0.25s;
}
.gold-button {
    background: var(--gold);
    color: var(--navy);
    border: 1px solid var(--gold);
}
.gold-button:hover {
    background: var(--gold2);
    border-color: var(--gold2);
    transform: translateY(-2px);
}
.outline-button {
    border: 1px solid rgba(248, 249, 250, 0.55);
    color: var(--paper);
}
.outline-button:hover {
    border-color: var(--gold2);
    color: var(--gold2);
}
.gold-button b,
.outline-button b {
    font-size: 18px;
    font-weight: 400;
}
.paper-section {
    background: var(--paper);
    color: var(--ink);
    position: relative;
    overflow: hidden;
    padding: 135px 8vw 115px;
}
/* 섹션 번호 표시는 V4에서 숨김 처리 */
.section-rail {
    display: none;
}

/* ===== 헤더 ===== */
.v4-header {
    --header-h: 108px; /* 모바일 메뉴 위치·높이 계산에도 사용 */
    height: var(--header-h);
    position: fixed;
    z-index: 20;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    align-items: center;
    padding: 0 4.5vw;
    color: var(--paper);
    transition: 0.3s;
    border-bottom: 1px solid transparent;
}
.v4-header.scrolled {
    background: rgba(7, 19, 35, 0.96);
    border-color: var(--line-dark);
    backdrop-filter: blur(16px);
}
.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    letter-spacing: 0.08em;
}
.brand img {
    width: 82px;
    height: 82px;
    object-fit: contain;
    display: block;
}
.brand span {
    font-size: 13px;
    color: var(--gold2);
    white-space: nowrap;
}
.brand i {
    font-style: normal;
    margin: 0 6px;
}
.brand-en {
    font-weight: inherit;
}
.v4-header nav {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 27px;
    font-size: 15px;
    letter-spacing: 0.03em;
}
.v4-header nav > a:not(.private-link) {
    opacity: 0.75;
}
.v4-header nav a:hover {
    color: var(--gold2);
    opacity: 1;
}
.private-link {
    border: 1px solid var(--gold);
    padding: 8px 12px;
    color: var(--gold2);
    font-size: 12px;
    transition: 0.25s;
}
.private-link:hover {
    background: var(--gold);
    color: var(--paper);
    transform: translateY(-2px);
}
.menu-button,
.mobile-nav {
    display: none;
}

/* ===== 01 히어로 ===== */
.hero {
    min-height: 840px;
    height: 100vh;
    max-height: 980px;
    position: relative;
    overflow: hidden;
    background: var(--navy);
    color: var(--paper);
    display: flex;
    align-items: center;
    padding: 145px 8vw 85px;
}
.hero-image {
    position: absolute;
    inset: 0;
    background: url("../images/judgment-hero.webp") center 30% / cover;
    filter: grayscale(1) contrast(1.1);
    opacity: 0.26;
}
.hero-shade {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, #06101f 2%, rgba(10, 25, 47, 0.95) 42%, rgba(10, 25, 47, 0.58) 100%);
}
.hero-grid {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent 0 73%, rgba(212, 175, 55, 0.17) 73.1%, transparent 73.2%),
        linear-gradient(rgba(212, 175, 55, 0.07) 1px, transparent 1px);
    background-size:
        100% 100%,
        100% 25%;
    mask-image: linear-gradient(to right, black 20%, transparent 95%);
}
.hero-content {
    position: relative;
    z-index: 2;
    max-width: 760px;
}
.hero h1 {
    font: 500 clamp(37px, 4.1vw, 60px) / 1.43 var(--serif);
    letter-spacing: -0.1em;
    margin: 0 0 26px;
}
.hero h1 em {
    font-style: normal;
    color: var(--gold2);
}
.hero h1 em .hero-white {
    color: var(--paper);
}
.hero-tagline {
    font-size: 17px;
    line-height: 1.7;
    color: var(--gold2);
    margin: 0 0 19px;
    max-width: 735px;
}
.hero-sub {
    font-size: 14px;
    line-height: 1.9;
    color: rgba(248, 249, 250, 0.7);
    max-width: 690px;
    margin: 0 0 31px;
}
.hero-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}
.hero-art {
    position: absolute;
    right: 9%;
    top: 50%;
    width: min(42vw, 510px);
    height: min(42vw, 510px);
    transform: translateY(-47%);
    border: 1px solid rgba(212, 175, 55, 0.27);
    border-radius: 50%;
    z-index: 1;
    animation: art-in 1.6s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}
.hero-art:before,
.hero-art:after {
    content: "";
    position: absolute;
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 50%;
}
.hero-art:before {
    inset: 8%;
    border-left-color: transparent;
    border-bottom-color: transparent;
    animation: art-spin 30s linear infinite;
}
.hero-art:after {
    inset: 23%;
    border-color: rgba(212, 175, 55, 0.25);
    border-right-color: transparent;
    animation: art-spin 22s linear infinite reverse;
}
.orbit {
    position: absolute;
    border: 1px solid rgba(248, 249, 250, 0.16);
    border-radius: 50%;
    inset: 15% 2%;
    transform: rotate(37deg);
    animation: art-spin 48s linear infinite;
}
.orbit-two {
    inset: 2% 15%;
    transform: rotate(-42deg);
    animation-duration: 64s;
    animation-direction: reverse;
}
.orbit-three {
    inset: 30% -4%;
    transform: rotate(72deg);
    animation-duration: 36s;
}
.axis {
    position: absolute;
    width: 1px;
    background: rgba(212, 175, 55, 0.28);
    height: 118%;
    top: -9%;
    left: 50%;
    transform: rotate(42deg);
}
.axis-two {
    transform: rotate(-48deg);
}
/* 축을 따라 흐르는 빛 */
.axis:after {
    content: "";
    position: absolute;
    top: 0;
    left: -1px;
    width: 3px;
    height: 22%;
    border-radius: 2px;
    background: linear-gradient(transparent, var(--gold2), transparent);
    opacity: 0;
    animation: axis-glint 7s ease-in-out infinite;
}
.axis-two:after {
    animation-delay: -3.5s;
    animation-direction: reverse;
}
/* 원 궤도를 도는 빛 점 + 꼬리 */
.satellite {
    position: absolute;
    inset: -1px;
    border-radius: 50%;
    rotate: 35deg;
    animation: art-spin 38s linear -4s infinite;
}
.satellite:before {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    width: 7px;
    height: 7px;
    margin: -3.5px 0 0 -3.5px;
    border-radius: 50%;
    background: var(--gold2);
    box-shadow: 0 0 10px 3px rgba(212, 175, 55, 0.55);
}
.satellite:after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: conic-gradient(transparent 0 70%, rgba(241, 217, 138, 0.75));
    -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 2px), #000 calc(100% - 1px));
    mask: radial-gradient(farthest-side, transparent calc(100% - 2px), #000 calc(100% - 1px));
}
.satellite-two {
    inset: 8%;
    rotate: -120deg;
    animation-duration: 26s;
    animation-delay: -9s;
    animation-direction: reverse;
}
.satellite-two:after {
    background: conic-gradient(rgba(241, 217, 138, 0.6), transparent 25%);
}
.satellite-three {
    inset: 23%;
    rotate: 200deg;
    animation-duration: 18s;
    animation-delay: -10s;
}
.satellite-two:before,
.satellite-three:before {
    width: 5px;
    height: 5px;
    margin: -2.5px 0 0 -2.5px;
}
.satellite-three:before {
    background: var(--paper);
    box-shadow: 0 0 8px 2px rgba(248, 249, 250, 0.45);
}
.art-core {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    height: 145px;
    width: 145px;
    border-radius: 50%;
    background: var(--gold);
    color: var(--navy);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow:
        0 0 0 18px rgba(212, 175, 55, 0.07),
        0 0 0 42px rgba(212, 175, 55, 0.04);
    animation: core-breathe 4.8s ease-in-out infinite;
}
/* 코어에서 퍼져나가는 파동 */
.art-core:before,
.art-core:after {
    content: "";
    position: absolute;
    inset: 0;
    border: 1px solid rgba(212, 175, 55, 0.6);
    border-radius: 50%;
    opacity: 0;
    pointer-events: none;
    animation: core-pulse 4.8s cubic-bezier(0.25, 0.6, 0.35, 1) infinite;
}
.art-core:after {
    animation-delay: 2.4s;
}
@keyframes art-in {
    from {
        opacity: 0;
        scale: 0.88;
    }
    to {
        opacity: 1;
        scale: 1;
    }
}
@keyframes art-spin {
    from {
        rotate: 0deg;
    }
    to {
        rotate: 360deg;
    }
}
@keyframes axis-glint {
    0% {
        opacity: 0;
        transform: translateY(-100%);
    }
    15%,
    85% {
        opacity: 1;
    }
    100% {
        opacity: 0;
        transform: translateY(455%);
    }
}
@keyframes core-breathe {
    0%,
    100% {
        box-shadow:
            0 0 0 18px rgba(212, 175, 55, 0.07),
            0 0 0 42px rgba(212, 175, 55, 0.04),
            0 0 40px rgba(212, 175, 55, 0.12);
    }
    50% {
        box-shadow:
            0 0 0 22px rgba(212, 175, 55, 0.1),
            0 0 0 50px rgba(212, 175, 55, 0.05),
            0 0 80px rgba(212, 175, 55, 0.35);
    }
}
@keyframes core-pulse {
    0% {
        opacity: 0.9;
        transform: scale(1);
    }
    100% {
        opacity: 0;
        transform: scale(2.7);
    }
}
/* 움직임 줄이기 설정 사용자는 정지 */
@media (prefers-reduced-motion: reduce) {
    .hero-art,
    .hero-art *,
    .hero-art:before,
    .hero-art:after,
    .hero-art *:before,
    .hero-art *:after {
        animation: none !important;
    }
}
.art-core span {
    font: 500 35px/1 var(--serif);
}
.art-core small {
    text-align: center;
    font-size: 9px;
    letter-spacing: 0.17em;
    line-height: 1.3;
    margin-top: 9px;
}

/* ===== 02 ABOUT & PATENT ===== */
.about {
    display: grid;
    grid-template-columns: 1.08fr 0.92fr;
    gap: 65px 8%;
    min-height: 1270px;
}
.about-intro {
    grid-column: 1;
    max-width: 670px;
}
.about h2,
.insights h2 {
    font: 500 clamp(35px, 3.8vw, 57px) / 1.45 var(--serif);
    letter-spacing: -0.1em;
    margin: 0 0 28px;
}
.about h2 em,
.insights h2 em {
    font-style: normal;
    color: #b58d23;
}
.about-intro > p:not(.eyebrow) {
    font-size: 15px;
    line-height: 2;
    color: #5f6b76;
    margin: 0 0 20px;
}
.profile-card {
    grid-column: 2;
    grid-row: 1;
    position: relative;
    padding: 18px 0 0 18px;
    margin-right: 3%;
}
.profile-card:before {
    content: "";
    position: absolute;
    inset: 0 8% 12% 0;
    border: 1px solid var(--gold);
    opacity: 0.6;
}
.portrait {
    height: 450px;
    overflow: hidden;
    position: relative;
}
.portrait img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    filter: grayscale(1) contrast(1.08);
    mix-blend-mode: multiply;
}
.portrait-caption {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 18px;
    margin: 14px 0 0;
    color: #7a858d;
    font-family: var(--poppins);
    font-size: 14px;
    letter-spacing: 0.16em;
}
.portrait-caption strong {
    font-size: 16px;
    font-weight: 300;
    letter-spacing: 0.21em;
    color: #9b7718;
    white-space: nowrap;
}
.portrait-caption span {
    letter-spacing: 0.12em;
    white-space: nowrap;
}
.credentials {
    grid-column: 1 / span 2;
    border-top: 1px solid var(--line);
    padding: 28px 0 0;
    margin-top: 8px;
}
.credential-grid {
    display: grid;
    grid-template-columns: 0.9fr 0.9fr 0.9fr 1.35fr;
    gap: 22px;
}
.credential-grid b {
    display: block;
    color: #9b7718;
    font-family: var(--poppins);
    font-size: 10px;
    letter-spacing: 0.12em;
    margin-bottom: 9px;
}
.credential-grid p {
    margin: 0;
    color: #66727c;
    font-size: 14px;
    line-height: 1.85;
}
.patent-panel {
    grid-column: 1 / span 2;
    display: grid;
    grid-template-columns: 1fr;
    gap: 28px;
    align-items: center;
    border-top: 1px solid var(--line);
    padding: 35px 0 0;
    margin-top: 5px;
}
.patent-copy h3 {
    font: 500 31px/1.35 var(--serif);
    letter-spacing: -0.08em;
    margin: 0;
}
.patent-english {
    font-size: 15px;
    color: #b58d23;
    letter-spacing: 0.04em;
    margin: 3px 0 17px;
}
.official-name {
    font-size: 14px;
    line-height: 1.8;
    color: #5e6974;
}
.official-name strong {
    color: #a37e1e;
}
.patent-copy ul {
    list-style: none;
    padding: 0;
    margin: 22px 0 0;
    color: #65717b;
    font-size: 13px;
}
.patent-copy li {
    border-top: 1px solid var(--line);
    padding: 8px 0;
}
.patent-copy li:before {
    content: "◆";
    font-size: 7px;
    color: var(--gold);
    margin-right: 9px;
    vertical-align: 2px;
}
.patent-visuals {
    display: grid;
    grid-template-columns: 0.72fr 1.28fr;
    gap: 18px;
}
.patent-thumb {
    position: relative;
    height: 100%;
    background: #e9e9e6;
    border: 8px solid var(--navy);
    padding: 0;
    overflow: hidden;
    box-shadow: 7px 7px 0 rgba(212, 175, 55, 0.42);
    transition: 0.25s;
}
.patent-thumb:hover {
    transform: translateY(-5px);
}
.patent-thumb img {
    display: block;
    width: 100%;
    height: 225px;
    object-fit: cover;
    object-position: top;
}
.patent-thumb span {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(10, 25, 47, 0.9);
    color: var(--gold2);
    font-size: 9px;
    letter-spacing: 0.12em;
    padding: 7px;
    text-align: center;
}
.neural-panel {
    margin: 0;
    background: var(--navy);
    padding: 0;
    overflow: hidden;
}
.neural-panel img {
    width: 100%;
    display: block;
    opacity: 0.9;
}

/* ===== 03 SERVICES ===== */
.services {
    background: var(--navy);
    color: var(--paper);
    position: relative;
    overflow: hidden;
    padding: 135px 8vw 80px;
    min-height: 1580px;
}
.services:before {
    content: "03";
    position: absolute;
    right: -3%;
    top: 15%;
    font: 500 510px/0.7 var(--serif);
    color: rgba(212, 175, 55, 0.045);
}
.services-head {
    max-width: 850px;
    position: relative;
    z-index: 1;
}
.services-head h2 {
    font: 500 clamp(35px, 3.8vw, 57px) / 1.42 var(--serif);
    letter-spacing: -0.1em;
    margin: 0 0 14px;
}
.services-head h2 em {
    font-style: normal;
    color: var(--gold2);
    white-space: nowrap; /* "네 가지 자문 솔루션" 은 한 덩어리 — 모바일에서 "네 / 가지" 로 끊기지 않고 앞에서 줄을 바꾼다 */
}
.services-head > p:last-child {
    color: rgba(248, 249, 250, 0.65);
    font-size: 15px;
    max-width: 680px;
}
/* PC에서만 '필요한' 뒤 줄바꿈 */
.pc-only-break {
    display: block;
}
.service-grid {
    position: relative;
    z-index: 1;
    margin: 62px 0 0;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--line-dark);
}
.service-card {
    background: rgba(10, 25, 47, 0.96);
    display: flex;
    flex-direction: column;
    border-top: 2px solid transparent;
    transition: 0.25s;
}
.service-card:hover {
    border-top-color: var(--gold);
    background: #10233f;
}
.service-visual {
    height: 142px;
    position: relative;
    overflow: hidden;
    background: var(--navy-deep);
}
.service-visual:after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 35%, rgba(7, 19, 35, 0.9));
}
.service-visual > img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    object-position: center;
}
.lounge {
    background: #17293b url("../images/service-lounge.svg?v=3a74b43") center/cover no-repeat;
}
.boardroom {
    background: url("../images/service-executive.svg") center/cover no-repeat;
}
.boardroom:before {
    content: "";
    position: absolute;
    width: 75%;
    height: 36%;
    left: 12%;
    top: 24%;
    border: 1px solid rgba(241, 217, 138, 0.4);
    box-shadow: 0 35px 0 -17px rgba(241, 217, 138, 0.25);
}
.neural {
    background: url("../images/service-saas.svg") center/cover no-repeat;
}
.retreat {
    background: url("../images/service-retreat.svg") center/cover no-repeat;
}
.retreat:before {
    content: "";
    position: absolute;
    left: 10%;
    right: 13%;
    bottom: 0;
    height: 83%;
    background: linear-gradient(65deg, transparent 48%, rgba(241, 217, 138, 0.28) 49% 50%, transparent 51%),
        linear-gradient(115deg, transparent 46%, rgba(248, 249, 250, 0.18) 47% 48%, transparent 49%);
}
.service-body {
    padding: 20px 20px 22px;
    display: flex;
    flex-direction: column;
    flex: 1;
}
.service-no {
    color: var(--gold2);
    font-family: var(--poppins);
    font-size: 12px;
}
.service-body h3 {
    font: 500 23px/1.42 var(--serif);
    letter-spacing: -0.08em;
    margin: 9px 0 4px;
}
.service-en {
    color: var(--gold2);
    font-family: var(--poppins);
    font-size: 13px;
    line-height: 1.45;
    margin: 0 0 20px;
    min-height: 34px;
}
.service-body > p:not(.service-en):not(.service-label) {
    font-size: 13px;
    line-height: 1.75;
    color: rgba(248, 249, 250, 0.68);
    margin: 0 0 12px;
}
.service-label {
    color: var(--gold2);
    font-family: var(--poppins);
    font-size: 10px;
    letter-spacing: 0.14em;
    margin: 0 0 4px;
}
.service-body ol {
    border-top: 1px solid var(--line-dark);
    padding: 15px 0 0 17px;
    margin: auto 0 15px;
    color: rgba(248, 249, 250, 0.86);
    font-size: 13px;
    line-height: 1.85;
}
.service-body > strong {
    border-top: 1px solid var(--line-dark);
    padding-top: 13px;
    color: var(--gold2);
    font-family: var(--poppins);
    font-size: 11px;
    letter-spacing: 0.1em;
}
.service-body > strong + p {
    margin-top: 6px !important;
}
/* 카드가 나란히 있을 때 TARGET · WHAT WE DO · 목록 · DELIVERABLE 줄을 카드끼리 맞춤
   (카드 한 장 = 이미지 1줄 + 본문 10줄, 본문 항목 수가 바뀌면 span 숫자도 함께 수정) */
@media (min-width: 761px) {
    .service-card {
        display: grid;
        grid-row: span 11;
        grid-template-rows: subgrid;
        row-gap: 0;
    }
    .service-body {
        display: grid;
        grid-row: span 10;
        grid-template-rows: subgrid;
        row-gap: 0;
    }
    .service-body ol {
        margin-top: 14px;
    }
}
.notice-box {
    position: relative;
    z-index: 1;
    margin: 50px 0 0;
    border: 1px solid rgba(212, 175, 55, 0.52);
    padding: 23px 27px;
    display: grid;
    grid-template-columns: 0.8fr 1.3fr auto;
    gap: 30px;
    align-items: center;
}
.notice-box h3 {
    font: 500 24px var(--serif);
    margin: 0;
}
.notice-box p:not(.eyebrow) {
    font-size: 12px;
    color: rgba(248, 249, 250, 0.68);
    line-height: 1.9;
}
.notice-box p b {
    color: var(--gold2);
    margin-right: 5px;
}
.notice-box .gold-button {
    font-size: 11px;
    white-space: nowrap;
}

/* ===== 04 INSIGHTS ===== */
.insights {
    min-height: 900px;
}
.insights-subcopy {
    max-width: 640px;
    margin: 18px 0 0;
    color: #697580;
    font-size: 15px;
    line-height: 1.9;
}
/* PC에서만 '최고 의사결정권자와' 뒤 줄바꿈 */
.pc-insights-break {
    display: block;
}
/* 제목 오른쪽 '전체보기' 버튼 → 모달 목록 화면 */
.insights-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 40px;
}
.insights-all {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    gap: 14px;
    padding: 13px 20px;
    border: 1px solid var(--line);
    background: transparent;
    color: var(--navy);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.06em;
    transition: 0.2s;
}
.insights-all b {
    font-size: 16px;
    font-weight: 400;
    transition: transform 0.2s;
}
.insights-all:hover,
.insights-all:focus-visible {
    border-color: #b58d23;
    color: #9c781d;
}
.insights-all:hover b {
    transform: translateX(3px);
}
/* 섹션 그리드에는 앞의 3개만 보이고, 나머지는 전체보기 목록에서 본다 */
.insight-cards article:nth-child(n + 4) {
    display: none;
}
.insight-cards {
    margin: 65px 0 0;
    display: grid;
    grid-template-columns: 1.3fr 0.85fr 0.85fr;
    gap: 1px;
    background: var(--line);
}
.insight-cards article {
    background: #fff;
    padding: 27px 28px;
    min-height: 330px;
    display: flex;
    flex-direction: column;
    cursor: pointer;
    transition: 0.25s;
}
.insight-cards article:first-child {
    background: #e8e2d4;
}
.insight-cards article:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(10, 25, 47, 0.12);
}
.insight-cards article > span {
    color: #9c781d;
    font-size: 10px;
    letter-spacing: 0.12em;
}
.insight-cards h3 {
    font: 500 24px/1.55 var(--serif);
    letter-spacing: -0.08em;
    margin: 53px 0 13px;
}
.insight-cards p {
    color: #68747d;
    font-size: 13px;
    line-height: 1.8;
}
.insight-cards a {
    margin-top: auto;
    color: #a17c1f;
    font-size: 10px;
    letter-spacing: 0.11em;
}

/* ===== 맨 위로 버튼 (스크롤하면 오른쪽 아래에 나타남) ===== */
.top-button {
    position: fixed;
    right: 28px;
    bottom: 28px;
    z-index: 19;
    width: 56px;
    height: 56px;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    border: 1px solid rgba(212, 175, 55, 0.6);
    background: rgba(10, 25, 47, 0.88);
    color: var(--gold2);
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
    box-shadow: 0 10px 28px rgba(2, 8, 17, 0.28);
    opacity: 0;
    visibility: hidden;
    transform: translateY(14px);
    transition:
        opacity 0.3s,
        visibility 0.3s,
        transform 0.3s,
        background 0.25s,
        color 0.25s;
}
.top-button.is-visible {
    opacity: 1;
    visibility: visible;
    transform: none;
}
.top-button:hover,
.top-button:focus-visible {
    background: var(--gold);
    border-color: var(--gold);
    color: var(--navy);
}
.top-button svg {
    width: 18px;
    height: 18px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.6;
}
.top-button span {
    font: 500 9px/1 var(--poppins);
    letter-spacing: 0.18em;
    margin-right: -0.18em;
}

/* ===== 팝업 (인사이트 모달, 특허증 라이트박스) ===== */
.insight-modal,
.lightbox {
    position: fixed;
    z-index: 50;
    inset: 0;
    background: rgba(2, 8, 17, 0.9);
    display: grid;
    place-items: center;
    padding: 5vh 7vw;
}
.insight-modal[hidden],
.lightbox[hidden] {
    display: none;
}
.insight-modal-card {
    position: relative;
    width: 100%;
    max-width: 860px;
    max-height: 90vh;
    overflow: auto;
    background: var(--paper);
    box-shadow: 0 20px 70px rgba(0, 0, 0, 0.35);
}
.insight-modal-card h3 {
    font: 500 30px/1.45 var(--serif);
    letter-spacing: -0.08em;
}
/* 상세 화면 */
.insight-detail {
    display: grid;
    grid-template-columns: minmax(260px, 42%) 1fr;
}
.insight-detail[hidden],
.insight-list-view[hidden] {
    display: none;
}
.insight-detail img {
    width: 100%;
    height: 100%;
    min-height: 360px;
    object-fit: cover;
    filter: grayscale(1);
}
.insight-detail-body {
    display: flex;
    flex-direction: column;
    padding: 46px 42px;
}
.insight-detail-body p:not(.eyebrow) {
    color: #66727d;
}
.insight-back {
    align-self: flex-start;
    margin-top: auto;
    padding: 11px 18px;
    border: 1px solid var(--line);
    background: transparent;
    color: var(--navy);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.06em;
    transition: 0.2s;
}
.insight-back:hover,
.insight-back:focus-visible {
    border-color: #b58d23;
    color: #9c781d;
}
/* 목록 화면 */
.insight-list-view {
    padding: 46px 42px 38px;
}
.insight-list-view h3 {
    margin: 0 0 24px;
}
.insight-list {
    list-style: none;
    margin: 0;
    padding: 0;
    border-top: 1px solid var(--line);
}
.insight-list li {
    border-bottom: 1px solid var(--line);
}
.insight-list-item {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 4px 24px;
    align-items: center;
    padding: 20px 14px;
    background: none;
    border: 0;
    color: var(--ink);
    text-align: left;
    transition: background 0.2s;
}
.insight-list-item:hover,
.insight-list-item:focus-visible {
    background: #efe9dc;
}
.insight-list-item[aria-current] {
    box-shadow: inset 2px 0 0 #b58d23;
}
.insight-list-item span {
    color: #9c781d;
    font-size: 10px;
    letter-spacing: 0.12em;
}
.insight-list-item strong {
    font: 500 19px/1.5 var(--serif);
    letter-spacing: -0.06em;
}
.insight-list-item small {
    color: #68747d;
    font-size: 13px;
    line-height: 1.7;
}
.insight-list-item i {
    grid-column: 2;
    grid-row: 1 / span 3;
    color: #a17c1f;
    font-style: normal;
}
/* 목록 페이징 */
.insight-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 6px;
    margin-top: 30px;
}
.insight-pagination button {
    min-width: 34px;
    height: 34px;
    padding: 0 6px;
    border: 0;
    background: none;
    color: #68747d;
    font: 500 13px/1 var(--poppins);
    transition: 0.2s;
}
.insight-pagination .insight-page-step {
    font-size: 20px;
    font-weight: 300;
}
.insight-pagination button:not(:disabled):not([aria-current]):hover,
.insight-pagination button:not([aria-current]):focus-visible {
    color: #9c781d;
}
.insight-pagination button[aria-current] {
    background: var(--navy);
    color: var(--paper);
}
.insight-pagination button:disabled {
    opacity: 0.3;
    cursor: default;
}
.modal-close,
.lightbox button {
    position: absolute;
    top: 15px;
    right: 20px;
    background: none;
    border: 0;
    color: var(--paper);
    font-size: 38px;
    font-weight: 200;
    z-index: 2;
}
.insight-modal-card .modal-close {
    color: var(--navy);
}
.lightbox img {
    max-width: min(760px, 92vw);
    max-height: 90vh;
    box-shadow: 0 0 0 1px var(--gold);
}

/* ===== 05 CONTACT ===== */
/* 푸터(frame/copy/copy.html .site-footer)는 모든 화면 공용이라 섹션 밖에 있다.
   디자인 시안에서 섹션 하단 여백(35px)과 푸터 위 여백(62px)이던 값을 섹션 · 푸터에 나눠 같은 간격을 만든다. */
.contact {
    background: var(--navy);
    color: var(--paper);
    position: relative;
    padding: 135px 8vw 62px;
}
.contact-head {
    max-width: 800px;
}
.contact h2 {
    font: 500 clamp(36px, 4.1vw, 59px) / 1.43 var(--serif);
    letter-spacing: -0.1em;
    margin: 0 0 25px;
}
.contact h2 em {
    font-style: normal;
    color: var(--gold2);
}
.contact-head > p:not(.eyebrow) {
    color: rgba(248, 249, 250, 0.65);
    font-size: 15px;
    margin-top: 24px;
}
.contact-grid {
    margin: 60px 0 0;
    border-top: 1px solid var(--line-dark);
    padding-top: 30px;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 9%;
}
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 23px;
}
.contact label {
    display: block;
    color: var(--paper);
    font-size: 13px;
    margin-bottom: 20px;
}
.contact input:not([type="radio"]):not([type="checkbox"]),
.contact select,
.contact textarea {
    display: block;
    width: 100%;
    background: transparent;
    border: 0;
    border-bottom: 1px solid rgba(248, 249, 250, 0.32);
    color: var(--paper);
    padding: 10px 0 11px;
    margin-top: 6px;
    outline: 0;
    font-size: 14px;
    border-radius: 0;
}
/* 문의 유형 셀렉트: 다른 입력칸과 같은 밑줄 스타일 + 금색 화살표 */
.contact select {
    -webkit-appearance: none;
    appearance: none;
    padding-right: 30px;
    cursor: pointer;
    color-scheme: dark; /* 펼친 목록도 어두운 톤으로 (PC 브라우저) */
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5l5 5 5-5' fill='none' stroke='%23f1d98a' stroke-width='1.3'/%3E%3C/svg%3E")
        no-repeat right 4px center / 12px 8px;
    transition:
        border-color 0.2s,
        color 0.2s;
}
/* 아직 고르지 않았을 때는 다른 칸의 안내 문구처럼 흐리게 */
.contact select:invalid {
    color: rgba(248, 249, 250, 0.4);
}
.contact select:hover {
    border-color: rgba(212, 175, 55, 0.6);
}
.contact option {
    background: var(--navy-deep);
    color: var(--paper);
    padding: 12px 18px; /* Firefox 기본 목록에도 적용 */
}
/* 펼친 목록 디자인 (Chrome·Edge 최신 버전. 그 외 브라우저는 기본 목록) */
@supports (appearance: base-select) {
    .contact select,
    .contact select::picker(select) {
        appearance: base-select;
    }
    .contact select::picker-icon {
        display: none; /* 화살표는 위의 금색 배경 아이콘 사용 */
    }
    .contact select:open {
        border-color: var(--gold);
    }
    .contact select::picker(select) {
        margin-top: 8px;
        padding: 8px 0;
        background: var(--navy-deep);
        border: 1px solid rgba(212, 175, 55, 0.45);
        box-shadow: 0 18px 40px rgba(2, 8, 17, 0.5);
    }
    .contact option {
        gap: 10px;
        font-size: 14px;
        line-height: 1.5;
        transition:
            background 0.15s,
            color 0.15s;
    }
    .contact option::checkmark {
        order: 1;
        margin-left: auto;
        color: var(--gold2);
    }
    .contact option:hover,
    .contact option:focus-visible {
        background: rgba(212, 175, 55, 0.12);
        color: var(--gold2);
        outline: 0;
    }
    .contact option:checked {
        color: var(--gold2);
    }
}
.contact input::placeholder,
.contact textarea::placeholder {
    color: rgba(248, 249, 250, 0.4);
}
.contact input:focus,
.contact select:focus,
.contact textarea:focus {
    border-color: var(--gold);
}
.consent-row {
    grid-template-columns: 0.9fr 1.6fr;
    gap: 28px;
    align-items: start;
}
.choice-options {
    display: inline-flex;
    gap: 11px;
    margin-left: 14px;
}
.choice-options label {
    font-size: 12px;
    margin: 0;
    color: rgba(248, 249, 250, 0.72);
}
.choice-options input,
.security-consent input {
    accent-color: var(--gold);
    margin: 0 5px 0 0;
}
.security-consent {
    color: rgba(248, 249, 250, 0.72) !important;
    font-size: 12px !important;
    line-height: 1.75;
}
/* 체크박스를 첫 줄 가운데에 맞추고, 둘째 줄은 글자 시작선에 맞춤 */
.contact .security-consent {
    display: flex;
    align-items: flex-start;
    gap: 9px;
}
.contact .security-consent input {
    flex: none;
    width: 14px;
    height: 14px;
    margin: calc((1.75em - 14px) / 2) 0 0;
}
/* 필수 항목 안내: 비어 있는 칸은 빨간 밑줄 + 아래에 작은 안내 문구 */
.contact .is-invalid {
    border-color: var(--alert) !important;
}
.contact .security-consent.is-invalid input {
    outline: 1px solid var(--alert);
    outline-offset: 2px;
}
.field-error {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 8px;
    color: var(--alert);
    font-size: 12px;
    letter-spacing: -0.01em;
    animation: field-error-in 0.3s ease;
}
.field-error::before {
    content: "";
    flex: none;
    width: 14px;
    height: 1px;
    background: var(--alert);
}
.security-consent .field-error {
    margin-top: 4px;
}
@keyframes field-error-in {
    from {
        opacity: 0;
        transform: translateY(-3px);
    }
}
@media (prefers-reduced-motion: reduce) {
    .field-error {
        animation: none;
    }
}
.submit {
    width: 100%;
    margin-top: 4px;
}
.form-status {
    min-height: 25px;
    color: var(--gold2);
    font-size: 12px;
}
.form-status.is-error {
    color: var(--alert);
}
.concierge {
    border-left: 1px solid var(--line-dark);
    padding-left: 30px;
}
.concierge h3 {
    font: 500 28px var(--serif);
    margin: 42px 0 7px;
}
.concierge > p:not(.eyebrow) {
    color: var(--gold2);
    font-size: 14px;
    line-height: 1.85;
    margin: 0 0 28px;
}
.concierge dl {
    font-size: 13px;
}
.concierge dt {
    color: var(--gold2);
    font-size: 10px;
    letter-spacing: 0.13em;
    margin-top: 17px;
}
.concierge dd {
    margin: 4px 0;
    color: rgba(248, 249, 250, 0.68);
}
/* 회사명 (OFFICE & LOCATION 아래) — 국문은 기본 정보의 상호, 영문은 고정 */
.office-company {
    margin: 39px 0 28px; /* 위 여백은 머리글의 margin-bottom(22px)과 겹친다 */
}
.office-company__name {
    margin: 0;
    color: var(--paper);
    font: 300 27px/1.4 var(--sans);
    letter-spacing: 0;
}
.office-company__en {
    margin: 3px 0 0;
    color: var(--gold2);
    font-size: 13px;
}
/* 사무실 주소 · 전화 · 이메일 (PRIVATE CONCIERGE 위) */
.office-info {
    font-style: normal;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--line-dark);
}
.office-info dl {
    margin: 0;
}
.office-info dt:first-child {
    margin-top: 0;
}
.office-info dd {
    margin: 6px 0 0;
    color: var(--paper);
    font-size: 15px;
    line-height: 1.7;
}
.office-info a {
    transition: color 0.2s;
}
.office-info a:hover,
.office-info a:focus-visible {
    color: var(--gold2);
}
.site-footer {
    background: var(--navy);
    color: var(--paper);
    padding: 0 8vw 35px;
}
.site-footer-inner {
    border-top: 1px solid var(--line-dark);
    padding-top: 28px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 40px;
    font-size: 10px;
    letter-spacing: 0.12em;
    color: rgba(248, 249, 250, 0.5);
}
.site-footer .footer-top {
    flex-shrink: 0;
    white-space: nowrap;
    color: var(--gold2);
}
/* 푸터 기관 주소 · 사업자 정보 */
.footer-info {
    font-size: 13px;
    line-height: 1.8;
    letter-spacing: 0;
}
.footer-info p,
.footer-info ul {
    margin: 0;
}
.footer-info .footer-title {
    margin-bottom: 8px;
    color: var(--gold2);
    font-size: 10px;
    letter-spacing: 0.13em;
    text-transform: uppercase;
}
.footer-centers {
    list-style: none;
    padding: 0;
}
.footer-info b {
    color: rgba(248, 249, 250, 0.82);
    font-weight: 600;
}
/* 본사 정보 (제휴 기관 목록 위) */
.footer-hq {
    margin-bottom: 20px;
}
/* 항목 사이 구분선 (모바일에서는 줄바꿈으로 대체) */
.footer-line > span + span::before {
    content: "|";
    margin: 0 10px;
    opacity: 0.4;
}
.footer-info .footer-biz {
    margin-top: 14px;
}
.footer-info a {
    transition: color 0.2s;
}
.footer-info a:hover,
.footer-info a:focus-visible {
    color: var(--gold2);
}
.footer-info .footer-copy {
    margin-top: 6px;
    font-size: 10px;
    letter-spacing: 0.12em;
}

/* ===== 스크롤 등장 효과 ===== */
.reveal {
    opacity: 0;
    transform: translateY(18px);
    transition:
        opacity 0.6s ease,
        transform 0.6s ease;
}
.reveal.is-visible {
    opacity: 1;
    transform: none;
}

/* ===== 1180px 이하 (작은 PC · 태블릿 · 모바일) ===== */
@media (max-width: 1180px) {
    .v4-header nav {
        gap: 16px;
        font-size: 14px;
    }
    .brand span {
        font-size: 12px;
    }
    .credential-grid {
        gap: 28px;
    }
    .neural-panel {
        grid-column: 1 / span 2;
        max-width: 520px;
        justify-self: start;
    }
    .service-grid {
        grid-template-columns: 1fr 1fr;
    }
    .service-visual {
        height: 125px;
    }
    /* 01은 위에 가로로 꽉 차게, 02·03은 아래에 나란히 (3열이면 03 옆이 비어 보임) */
    .insight-cards {
        grid-template-columns: 1fr 1fr;
    }
    .insight-cards article:first-child {
        grid-column: 1 / span 2;
    }
    .contact-grid {
        gap: 6%;
    }
}

/* ===== 1001~1180px (작은 PC · 태블릿 가로) ===== */
@media (min-width: 1001px) and (max-width: 1180px) {
    /* 회사명과 메뉴가 붙지 않도록 여백·간격을 줄이고 메뉴 줄바꿈을 막음 */
    .v4-header {
        padding: 0 3vw;
    }
    .brand img {
        width: 72px;
        height: 72px;
    }
    .v4-header nav {
        gap: 14px;
    }
    .v4-header nav a {
        white-space: nowrap;
    }
}

/* ===== 1001px 이상 (PC) ===== */
@media (min-width: 1001px) {
    .patent-panel {
        grid-template-columns: 0.88fr 1.5fr;
        align-items: stretch;
    }
    .patent-visuals {
        align-items: stretch;
    }
    .patent-thumb {
        display: flex;
        flex-direction: column;
    }
    .patent-thumb img {
        height: 100%;
        min-height: 235px;
    }
    .neural-panel {
        height: 100%;
        display: flex;
        flex-direction: column;
    }
    .neural-panel img {
        height: 100%;
        min-height: 235px;
        object-fit: cover;
    }
}

/* ===== 761~1000px (태블릿) ===== */
@media (min-width: 761px) and (max-width: 1000px) {
    .hero-content {
        max-width: 600px;
    }
    .hero-art {
        right: 4%;
        width: 330px;
        height: 330px;
    }
    .about {
        grid-template-columns: 1fr 1fr;
        gap: 45px 5%;
        min-height: 1250px;
    }
    .credential-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .patent-visuals {
        margin-top: 26px;
    }
    .neural-panel {
        grid-column: auto;
        max-width: none;
    }
    .notice-box {
        margin-left: 6%;
    }
    .contact h2 {
        font-size: 43px;
    }
    .contact-grid {
        gap: 5%;
    }
}

/* ===== 1000px 이하 ===== */
@media (max-width: 1000px) {
    .pc-only-break {
        display: none;
    }
    /* 햄버거 메뉴 (태블릿 세로부터 사용 — 1000px 이하에선 가로 메뉴가 들어갈 자리가 없음) */
    .v4-header nav {
        display: none;
    }
    .menu-button {
        display: flex;
        margin-left: auto;
        margin-right: -10px; /* 누르는 영역은 44px, 선은 헤더 오른쪽 끝에 맞춤 */
        flex-shrink: 0;
        width: 44px;
        height: 44px;
        padding: 0;
        background: none;
        border: 0;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 7px;
    }
    .menu-button span {
        height: 1px;
        background: var(--gold2);
        width: 25px;
    }
    .mobile-nav {
        position: absolute;
        display: flex;
        top: var(--header-h);
        left: 0;
        right: 0;
        /* 가로로 눕힌 폰처럼 화면이 낮으면 메뉴 안에서 스크롤 */
        max-height: calc(100vh - var(--header-h));
        max-height: calc(100dvh - var(--header-h));
        overflow-y: auto;
        overscroll-behavior: contain;
        background: rgba(7, 19, 35, 0.98);
        flex-direction: column;
        padding: 10px 5vw 20px;
        border-top: 1px solid var(--line-dark);
    }
    .mobile-nav[hidden] {
        display: none;
    }
    .mobile-nav a {
        flex-shrink: 0;
        padding: 11px 0;
        color: var(--gold2);
        font-size: 14px;
        border-bottom: 1px solid rgba(248, 249, 250, 0.09);
    }
}

/* ===== 760px 이하 (모바일) ===== */
@media (max-width: 760px) {
    .v4-header {
        --header-h: 88px;
        padding: 0 5vw;
        background: rgba(7, 19, 35, 0.97);
    }
    .brand img {
        width: 66px;
        height: 66px;
    }
    .brand span {
        font-size: 13px;
        letter-spacing: 0.02em;
    }
    /* 모바일: 로고에 이미 영문명이 있어 '| ARCHE PARTNERS'는 숨김 */
    .brand-en {
        display: none;
    }
    .hero {
        min-height: 920px;
        height: auto;
        padding: 155px 8vw 80px;
        align-items: flex-start;
    }
    .hero-image {
        background-position: 56% center;
    }
    .hero h1 {
        font-size: clamp(31px, 8.5vw, 43px);
        line-height: 1.55;
    }
    .hero-tagline {
        font-size: 15px;
    }
    .hero-actions {
        align-items: stretch;
        flex-direction: column;
        max-width: 260px;
    }
    .hero-art {
        width: 245px;
        height: 245px;
        right: -25px;
        top: auto;
        bottom: 44px;
    }
    .art-core {
        width: 90px;
        height: 90px;
    }
    .art-core span {
        font-size: 25px;
    }
    .art-core small {
        font-size: 7px;
    }
    .paper-section {
        padding: 95px 8vw 78px;
    }
    .about h2,
    .insights h2,
    .services-head h2,
    .contact h2 {
        font-size: 32px;
        line-height: 1.45;
    }
    .about {
        display: block;
        min-height: 0;
    }
    .about-intro > p:not(.eyebrow) {
        font-size: 14px;
    }
    .profile-card {
        margin: 42px 0 0;
        padding-left: 12px;
    }
    .portrait {
        height: 370px;
    }
    .portrait-caption {
        flex-direction: column;
        align-items: flex-start;
        gap: 3px;
    }
    .credentials {
        margin-top: 60px;
    }
    .credential-grid {
        grid-template-columns: 1fr;
        gap: 23px;
    }
    .patent-panel {
        display: block;
        margin-top: 52px;
    }
    .patent-copy {
        margin-bottom: 24px;
    }
    .patent-visuals {
        grid-template-columns: none;
        gap: 22px;
        margin-top: 30px;
    }
    .patent-thumb {
        height: auto;
    }
    .neural-panel {
        max-width: none;
        margin-top: 34px;
    }
    .services {
        padding: 95px 8vw 64px;
        min-height: 0;
    }
    .services-head > p:last-child {
        font-size: 14px;
    }
    .service-grid {
        display: block;
        margin-top: 42px;
    }
    .service-card {
        min-height: 0;
        margin-bottom: 1px;
    }
    .service-visual {
        height: 118px;
    }
    .service-body {
        padding: 18px;
    }
    .notice-box {
        display: block;
        margin-top: 34px;
        padding: 20px;
    }
    .notice-box p:not(.eyebrow) {
        font-size: 13px;
        margin: 16px 0;
    }
    .notice-box .gold-button {
        display: flex;
    }
    .insights-subcopy {
        font-size: 14px;
        line-height: 1.8;
        margin-top: 15px;
    }
    .pc-insights-break {
        display: none;
    }
    .insights-head {
        flex-direction: column;
        align-items: flex-start;
        gap: 24px;
    }
    .insight-cards {
        margin-top: 38px;
        grid-template-columns: 1fr;
        gap: 0; /* 구분선은 카드의 margin-bottom 1px 로만 그림 (gap까지 있으면 2px로 겹침) */
    }
    .insight-cards article {
        min-height: 270px;
        margin-bottom: 1px;
    }
    .insight-cards article:first-child {
        grid-column: auto;
        min-height: 300px;
    }
    .insight-cards h3 {
        margin-top: 35px;
        font-size: 22px;
    }
    .insight-modal-card {
        max-height: 88vh;
    }
    .insight-detail {
        display: block;
    }
    .insight-detail img {
        height: 200px;
        min-height: 0;
    }
    .insight-detail-body,
    .insight-list-view {
        padding: 28px 25px;
    }
    .insight-back {
        margin-top: 18px;
    }
    .insight-modal-card h3 {
        font-size: 25px;
    }
    .insight-list-item {
        gap: 4px 14px;
        padding: 18px 8px;
    }
    .insight-list-item strong {
        font-size: 17px;
    }
    /* 시안에서는 섹션 안 푸터의 margin-top(46px)이 위 내용에서 빠져나온 아래 여백(목록 dl · dd)과 겹쳐(collapse) 간격이 46px 이었다.
       푸터가 공용 프레임으로 나갔으므로 같은 간격을 .contact-grid 의 margin 으로 두어 같은 겹침이 일어나게 하고, 섹션이 그 여백을 감싸게(flow-root) 한다 */
    .contact {
        padding: 95px 8vw 0;
        display: flow-root;
    }
    .site-footer {
        padding-bottom: 28px;
    }
    .contact-grid {
        display: block;
        margin-top: 42px;
        margin-bottom: 46px;
    }
    .form-row {
        display: block;
    }
    .contact label {
        font-size: 14px;
    }
    .choice-options {
        display: flex;
        margin: 8px 0 0;
    }
    .security-consent {
        font-size: 14px !important;
    }
    .concierge {
        border-left: 0;
        border-top: 1px solid var(--line-dark);
        padding: 30px 0 0;
        margin-top: 35px;
    }
    .site-footer-inner {
        flex-direction: column;
        gap: 22px;
        line-height: 1.6;
    }
    .footer-info {
        font-size: 12px;
    }
    .footer-centers li + li {
        margin-top: 10px;
    }
    .footer-line > span {
        display: block;
    }
    .footer-line > span + span::before {
        content: none;
    }
    .top-button {
        right: 16px;
        bottom: 16px;
        width: 48px;
        height: 48px;
    }
    .reveal {
        opacity: 1;
        transform: none;
    }
}