:root {
    --primary-blue: #0066FF;
    --primary-blue-dark: #0052CC;
    --accent-cyan: #00D4FF;
    --bg-black: #000000;
    --bg-white: #FFFFFF;
    --bg-gray: #F8F9FA;
    --text-white: #FFFFFF;
    --text-black: #000000;
    --text-gray: #666666;
    --text-gray-light: #999999;
    --border-light: #E5E5E5;
    --border-dark: rgba(255, 255, 255, 0.1);
    --gradient-blue: linear-gradient(135deg, #0066FF 0%, #00D4FF 100%);
    /* 본문/제목 공통: Pretendard 우선, 로드 실패 시 Noto Sans KR → 시스템 폰트 */
    --font-sans: 'Pretendard Variable', 'Pretendard', 'Noto Sans KR', -apple-system, BlinkMacSystemFont, system-ui, 'Apple SD Gothic Neo', 'Malgun Gothic', sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

*::-webkit-scrollbar {
    display: none;
}

html {
    scroll-behavior: smooth;
    /* body 스크롤바 표시 (전역 * 숨김 오버라이드) */
    scrollbar-width: auto;
    -ms-overflow-style: auto;
}

html::-webkit-scrollbar {
    display: block;
    width: 10px;
}

html::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
}

html::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.25);
    border-radius: 5px;
}

html::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.4);
}

body {
    font-family: var(--font-sans);
    line-height: 1.7;
    overflow-x: hidden;
    color: var(--text-black);
    font-weight: 400;
}

/* SNS 공유 시 크롤러가 첫 이미지로 사용. 화면에는 비표시 */
.og-first-image {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

/* Header */
/* ── 헤더: 좌 top01, 중 top02, 우 리더십 (space-between, inner 1200px) ── */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: #1E1E1E;
    height: 75px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.header-inner {
    width: 100%;
    max-width: 1200px;
    min-width: 0; /* flex 자식: 콘텐츠 최소폭에 끌리지 않도록 뷰포트에 맞춰 축소 */
    height: 75px;
    padding: 0 24px;
    display: flex;
    align-items: center;
    gap: 24px; /* 좌·중·우 간격 */
}

.header-left,
.header-center,
.header-right {
    display: flex;
    align-items: center;
    min-width: 0;
}

.header-left {
    flex: 0 1 auto;
    justify-content: flex-start;
}

.header-center {
    flex: 1 1 0;
    justify-content: center;
    min-width: 0; /* 좁아질 때 top02부터 줄어듦 */
}

.header-right {
    flex: 0 0 auto; /* 메뉴 폭 고정 → 오른쪽 경계에 붙이고 잘림 방지 */
    justify-content: flex-end;
    margin-left: auto;
    flex-wrap: nowrap;
    gap: 0.75em;
    white-space: nowrap;
}

.header-logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    width: 75%;
}

.header-left img {
    display: block;
    height: 100%;
    max-height: 75px;
    width: auto;
    object-fit: contain;
}

.header-center img {
    display: block;
    height: 100%;
    max-height: 52px; /* 우측(중앙) 로고 크기 축소 */
    max-width: 100%;
    width: auto;
    object-fit: contain;
}

.header-right .header-text {
    font-size: 1.125rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.95);
    letter-spacing: 0.02em;
    text-decoration: none;
}

.header-right .header-text:hover {
    color: rgba(200, 200, 200, 1);
}

/* Section Common */
section {
    padding: 160px 0;
    position: relative;
    overflow: hidden;
}

.section-black {
    background: var(--bg-black);
    color: var(--text-white);
}

.section-white {
    background: var(--bg-white);
    color: var(--text-black);
}

.section-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    margin-bottom: 20px;
    color: var(--primary-blue);
}

.section-black .section-label {
    color: var(--accent-cyan);
}

.section-title {
    font-family: var(--font-sans);
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.25;
    margin-bottom: 28px;
    letter-spacing: -0.03em;
}

.section-desc {
    font-size: 1.15rem;
    line-height: 1.33;
    max-width: 680px;
    letter-spacing: -0.01em;
}

/* 기본은 줄바꿈 비활성화(모바일 전용 개행) */
.mobile-break {
    display: none;
}

.section-black .section-desc {
    color: rgba(255, 255, 255, 0.95);
}

.section-white .section-desc {
    color: var(--text-gray);
}

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

.text-center .section-desc {
    margin: 0 auto;
}

/* ── Hero Section ── */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: calc(116px + 8vh) 0 0;
    position: relative;
    background: #080d1e;
    overflow: hidden;
    transform-style: preserve-3d; /* 3D 자식이 평면화되지 않도록 */
}

/* 3D 큐브 */
.hero-cube-container {
    position: absolute;
    right: 30%;
    top: 50%;
    transform: translateY(-50%);
    perspective: 1000px;
    transform-style: preserve-3d;
    z-index: 1;
}

.cube {
    width: 280px;
    height: 280px;
    position: relative;
    transform-style: preserve-3d;
    animation: rotateCube 20s infinite linear;
}

@keyframes rotateCube {
    0% {
        transform: rotateX(0deg) rotateY(0deg);
    }

    100% {
        transform: rotateX(360deg) rotateY(360deg);
    }
}

.cube-floor {
    position: absolute;
    bottom: -340px;
    left: 50%;
    transform: translateX(-50%);
    width: 1000px;
    height: 200px;
    background: radial-gradient(ellipse 80% 50% at 50% 0%,
            rgba(10, 175, 255, 0.15) 0%,
            rgba(102, 126, 234, 0.1) 30%,
            rgba(143, 83, 204, 0.05) 60%,
            transparent 100%);
    border-radius: 50%;
    filter: blur(8px);
}

.cube-face {
    position: absolute;
    width: 280px;
    height: 280px;
    border: 2px solid rgba(255, 255, 255, 0.1);
    opacity: 0.85;
}

.cube-front {
    background: linear-gradient(135deg, rgba(10, 175, 255, 0.3) 0%, rgba(10, 175, 255, 0.1) 100%);
    transform: translateZ(140px);
}

.cube-back {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.3) 0%, rgba(102, 126, 234, 0.1) 100%);
    transform: translateZ(-140px) rotateY(180deg);
}

.cube-right {
    background: linear-gradient(135deg, rgba(143, 83, 204, 0.3) 0%, rgba(143, 83, 204, 0.1) 100%);
    transform: rotateY(90deg) translateZ(140px);
}

.cube-left {
    background: linear-gradient(135deg, rgba(10, 175, 255, 0.25) 0%, rgba(10, 175, 255, 0.08) 100%);
    transform: rotateY(-90deg) translateZ(140px);
}

.cube-top {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.25) 0%, rgba(102, 126, 234, 0.08) 100%);
    transform: rotateX(90deg) translateZ(140px);
}

.cube-bottom {
    background: linear-gradient(135deg, rgba(143, 83, 204, 0.25) 0%, rgba(143, 83, 204, 0.08) 100%);
    transform: rotateX(-90deg) translateZ(140px);
}

.cube-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 200px;
    font-weight: 900;
    color: rgba(255, 255, 255, 0.9);
    text-shadow:
        0 0 50px rgba(0, 175, 255, 0.8),
        0 0 100px rgba(102, 126, 234, 0.6),
        0 0 150px rgba(143, 83, 204, 0.4);
    letter-spacing: 0.05em;
    pointer-events: none;
    z-index: 100;
}

/* 작은 큐브 */
.cube-small {
    width: 56px;
    height: 56px;
    position: absolute;
    left: -148px;
    top: 50%;
    transform: translateY(-50%);
    transform-style: preserve-3d;
    animation: rotateSmallCube 15s infinite linear;
}

@keyframes rotateSmallCube {
    0% {
        transform: translateY(-50%) rotateX(0deg) rotateY(0deg);
    }

    100% {
        transform: translateY(-50%) rotateX(360deg) rotateY(360deg);
    }
}

.cube-small .cube-face {
    width: 56px;
    height: 56px;
    opacity: 0.7;
}

/* 왼쪽 위 큐브 - Cyan */
.cube-small:not(.cube-small-bottom):not(.cube-small-right) .cube-front {
    background: linear-gradient(135deg, rgba(0, 170, 255, 0.5) 0%, rgba(0, 170, 255, 0.2) 100%);
}

.cube-small:not(.cube-small-bottom):not(.cube-small-right) .cube-back {
    background: linear-gradient(135deg, rgba(0, 170, 255, 0.5) 0%, rgba(0, 170, 255, 0.2) 100%);
}

.cube-small:not(.cube-small-bottom):not(.cube-small-right) .cube-right {
    background: linear-gradient(135deg, rgba(0, 170, 255, 0.15) 0%, rgba(0, 170, 255, 0.05) 100%);
}

.cube-small:not(.cube-small-bottom):not(.cube-small-right) .cube-left {
    background: linear-gradient(135deg, rgba(0, 170, 255, 0.15) 0%, rgba(0, 170, 255, 0.05) 100%);
}

.cube-small:not(.cube-small-bottom):not(.cube-small-right) .cube-top {
    background: linear-gradient(135deg, rgba(0, 170, 255, 0.35) 0%, rgba(0, 170, 255, 0.1) 100%);
}

.cube-small:not(.cube-small-bottom):not(.cube-small-right) .cube-bottom {
    background: linear-gradient(135deg, rgba(0, 170, 255, 0.15) 0%, rgba(0, 170, 255, 0.05) 100%);
}

.cube-small-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 32px;
    height: 32px;
    pointer-events: none;
    z-index: 100;
}

.cube-small-icon svg {
    width: 100%;
    height: 100%;
    fill: rgba(255, 255, 255, 0.9);
    filter: drop-shadow(0 0 8px rgba(0, 175, 255, 0.6));
}

.cube-small-icon svg path {
    stroke: rgba(255, 255, 255, 0.9);
    stroke-width: 0.5;
}

.cube-small .cube-front {
    transform: translateZ(28px);
}

.cube-small .cube-back {
    transform: translateZ(-28px) rotateY(180deg);
}

.cube-small .cube-right {
    transform: rotateY(90deg) translateZ(28px);
}

.cube-small .cube-left {
    transform: rotateY(-90deg) translateZ(28px);
}

.cube-small .cube-top {
    transform: rotateX(90deg) translateZ(28px);
}

.cube-small .cube-bottom {
    transform: rotateX(-90deg) translateZ(28px);
}

/* 아래쪽 작은 큐브 */
.cube-small-bottom {
    width: 67.2px;
    height: 67.2px;
    left: -180px;
    top: auto;
    bottom: -120px;
    transform: none;
    animation: rotateSmallCubeBottom 18s infinite linear;
}

.cube-small-bottom .cube-face {
    width: 67.2px;
    height: 67.2px;
}

.cube-small-bottom .cube-front {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.5) 0%, rgba(102, 126, 234, 0.2) 100%);
    transform: translateZ(33.6px);
}

.cube-small-bottom .cube-back {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.5) 0%, rgba(102, 126, 234, 0.2) 100%);
    transform: translateZ(-33.6px) rotateY(180deg);
}

.cube-small-bottom .cube-right {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.15) 0%, rgba(102, 126, 234, 0.05) 100%);
    transform: rotateY(90deg) translateZ(33.6px);
}

.cube-small-bottom .cube-left {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.15) 0%, rgba(102, 126, 234, 0.05) 100%);
    transform: rotateY(-90deg) translateZ(33.6px);
}

.cube-small-bottom .cube-top {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.35) 0%, rgba(102, 126, 234, 0.1) 100%);
    transform: rotateX(90deg) translateZ(33.6px);
}

.cube-small-bottom .cube-bottom {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.15) 0%, rgba(102, 126, 234, 0.05) 100%);
    transform: rotateX(-90deg) translateZ(33.6px);
}

@keyframes rotateSmallCubeBottom {
    0% {
        transform: rotateX(0deg) rotateY(0deg);
    }

    100% {
        transform: rotateX(360deg) rotateY(360deg);
    }
}

/* 오른쪽 작은 큐브 */
.cube-small-right {
    width: 56px;
    height: 56px;
    left: auto;
    right: -120px;
    top: 60%;
    transform: translateY(-50%);
    animation: rotateSmallCubeRight 17s infinite linear;
}

@keyframes rotateSmallCubeRight {
    0% {
        transform: translateY(-50%) rotateX(0deg) rotateY(0deg);
    }

    100% {
        transform: translateY(-50%) rotateX(360deg) rotateY(360deg);
    }
}

.cube-small-right .cube-face {
    width: 56px;
    height: 56px;
}

.cube-small-right .cube-front {
    background: linear-gradient(135deg, rgba(143, 83, 204, 0.5) 0%, rgba(143, 83, 204, 0.2) 100%);
    transform: translateZ(28px);
}

.cube-small-right .cube-back {
    background: linear-gradient(135deg, rgba(143, 83, 204, 0.5) 0%, rgba(143, 83, 204, 0.2) 100%);
    transform: translateZ(-28px) rotateY(180deg);
}

.cube-small-right .cube-right {
    background: linear-gradient(135deg, rgba(143, 83, 204, 0.15) 0%, rgba(143, 83, 204, 0.05) 100%);
    transform: rotateY(90deg) translateZ(28px);
}

.cube-small-right .cube-left {
    background: linear-gradient(135deg, rgba(143, 83, 204, 0.15) 0%, rgba(143, 83, 204, 0.05) 100%);
    transform: rotateY(-90deg) translateZ(28px);
}

.cube-small-right .cube-top {
    background: linear-gradient(135deg, rgba(143, 83, 204, 0.35) 0%, rgba(143, 83, 204, 0.1) 100%);
    transform: rotateX(90deg) translateZ(28px);
}

.cube-small-right .cube-bottom {
    background: linear-gradient(135deg, rgba(143, 83, 204, 0.15) 0%, rgba(143, 83, 204, 0.05) 100%);
    transform: rotateX(-90deg) translateZ(28px);
}

.hero .hero-content {
    position: relative;
    z-index: 10;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 0;
    transform: translateY(-30vh) translateX(-2%);
}

/* 상단 설명 텍스트 */
.hero .hero-desc {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.75;
    max-width: 560px;
    margin: 32px 0 0 0;
    transform: none;
    letter-spacing: -0.01em;
    font-weight: 400;
  
}

.hero-features {
    margin-top: 40px;
    max-width: 700px;
}

.hero-feature-text {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.6;
    margin: 0 0 12px 0;
}

.hero-feature-text:last-child {
    margin-bottom: 0;
}

/* 중간 레이블 */
.hero .hero-label {
    display: inline-block;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--primary-blue);
    letter-spacing: 0.08em;
    margin-bottom: 16px;
}

/* 메인 타이틀 (본문 폰트만, AI+는 그라데이션으로만 강조) */
.hero .hero-title {
    font-family: var(--font-sans);
    font-size: clamp(2.8rem, 5.5vw, 4.5rem);
    font-weight: 700;
    line-height: 1.15;
    margin: 0;
    letter-spacing: -0.03em;
    color: var(--text-white);
    max-width: 700px;
}

.hero .hero-subtitle {
    display: block;
    font-size: clamp(0.95rem, 1.6vw, 1.15rem);
    font-weight: 400;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 8px;
    letter-spacing: 0;
}

.hero .hero-subtitle .light {
    font-weight: 300;
}

.hero .hero-main {
    display: block;
}

.hero .hero-main .highlight {
    background: var(--gradient-blue);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 하단 분할 영역 */
.hero-bottom {
    position: absolute;
    bottom: 9%;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 1200px;
    display: grid;
    grid-template-columns: 45fr 55fr;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    z-index: 10;
}

.hero-bottom-item {
    padding: 40px 40px;
}

.hero-bottom-item:first-child {
    padding-left: 0;
    padding-right: 50px;
}

.hero-bottom-item:last-child {
    transform: translateX(-15%);
    padding-left: 50px;
}

.bottom-label {
    font-size: 0.75rem;
    color: var(--primary-blue);
    letter-spacing: 0.1em;
    margin-bottom: 12px;
    text-transform: uppercase;
}

.bottom-title {
    font-family: var(--font-sans);
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-white);
}

.bottom-desc {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.6;
}

.btn-primary {
    background: var(--primary-blue);
    color: var(--text-white);
    padding: 16px 38px;
    border-radius: 4px;
    font-weight: 600;
    font-size: 1.05rem;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.btn-primary:hover {
    background: var(--primary-blue-dark);
    transform: translateY(-3px);
    box-shadow: 0 16px 40px rgba(0, 102, 255, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--text-white);
    padding: 16px 38px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 4px;
    font-weight: 600;
    font-size: 1.05rem;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--text-white);
    transform: translateY(-3px);
    box-shadow: 0 16px 40px rgba(255, 255, 255, 0.2);
}

/* CTA 섹션: 다운로드 버튼을 신청 바로가기(btn-primary)와 동일 스타일로 */
.cta-buttons .btn-secondary {
    background: var(--primary-blue);
    color: var(--text-white);
    border: none;
}

.cta-buttons .btn-secondary:hover {
    background: var(--primary-blue-dark);
    border-color: transparent;
    box-shadow: 0 16px 40px rgba(0, 102, 255, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--text-white);
    padding: 16px 38px;
    border-radius: 4px;
    font-weight: 600;
    font-size: 1.05rem;
    text-decoration: none;
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.5);
}

/* Philosophy Section - White */
.philosophy {
    text-align: center;
}

.philosophy-content {
    max-width: 800px;
    margin: 0 auto;
}

.philosophy-title {
    font-family: var(--font-sans);
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 48px;
    letter-spacing: -0.02em;
}

.philosophy-quote {
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    font-weight: 300;
    line-height: 1.19;
    color: var(--text-black);
    margin-bottom: 48px;
    letter-spacing: -0.02em;
}

.philosophy-quote strong {
    font-weight: 700;
}

.philosophy-sub {
    font-size: 1.15rem;
    color: var(--text-gray);
    line-height: 2;
}

/* About Section - Black */
.about-header {
    text-align: center;
    margin-bottom: 80px;
}

/* About 카드: 1121px+ 3열 / 1120~768 2열(기준) / 768- 1열, 기준 스타일 일괄 적용 */
.about-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.about-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-left: 4px solid;
    border-radius: 16px;
    padding: 40px 32px;
    text-align: left;
    transition: background 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
    position: relative;
    overflow: hidden;
    min-height: 440px;
    cursor: pointer;
    word-break: keep-all;
    overflow-wrap: normal;
}

.about-card:nth-child(1) {
    border-left-color: #0af;
    box-shadow: 0 0 30px rgba(10, 175, 255, 0.15),
        0 8px 24px rgba(0, 0, 0, 0.3);
}

.about-card:nth-child(2) {
    border-left-color: #667eea;
    box-shadow: 0 0 30px rgba(102, 126, 234, 0.15),
        0 8px 24px rgba(0, 0, 0, 0.3);
}

.about-card:nth-child(3) {
    border-left-color: #8f53cc;
    box-shadow: 0 0 30px rgba(143, 83, 204, 0.15),
        0 8px 24px rgba(0, 0, 0, 0.3);
}

.about-card:hover,
.about-card.touch-active {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.35);
}

.about-card:nth-child(1):hover,
.about-card:nth-child(1).touch-active {
    box-shadow: 0 0 50px rgba(10, 175, 255, 0.4),
        0 12px 40px rgba(0, 0, 0, 0.4);
    border-color: rgba(255, 255, 255, 0.6);
    border-left-color: rgba(255, 255, 255, 0.9);
}

.about-card:nth-child(1):hover .about-card-title,
.about-card:nth-child(1).touch-active .about-card-title {
    color: #0af;
}

.about-card:nth-child(2):hover,
.about-card:nth-child(2).touch-active {
    box-shadow: 0 0 50px rgba(102, 126, 234, 0.4),
        0 12px 40px rgba(0, 0, 0, 0.4);
    border-color: rgba(255, 255, 255, 0.6);
    border-left-color: rgba(255, 255, 255, 0.9);
}

.about-card:nth-child(2):hover .about-card-title,
.about-card:nth-child(2).touch-active .about-card-title {
    color: #667eea;
}

.about-card:nth-child(3):hover,
.about-card:nth-child(3).touch-active {
    box-shadow: 0 0 50px rgba(143, 83, 204, 0.4),
        0 12px 40px rgba(0, 0, 0, 0.4);
    border-color: rgba(255, 255, 255, 0.6);
    border-left-color: rgba(255, 255, 255, 0.9);
}

.about-card:nth-child(3):hover .about-card-title,
.about-card:nth-child(3).touch-active .about-card-title {
    color: #8f53cc;
}

.about-card-front {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 40px 32px;
    box-sizing: border-box;
    transition: opacity 0.4s ease;
}

.about-card:hover .about-card-front,
.about-card.touch-active .about-card-front {
    opacity: 0;
    pointer-events: none;
}

.about-card-back {
    position: absolute;
    top: 12px;
    left: 12px;
    right: 12px;
    bottom: 12px;
    padding: 40px 28px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.4s ease, top 0.4s ease, left 0.4s ease, right 0.4s ease, bottom 0.4s ease, padding 0.4s ease;
    border-radius: 12px;
    box-sizing: border-box;
}

.about-card:hover .about-card-back,
.about-card.touch-active .about-card-back {
    top: -40px;
    left: -32px;
    right: -32px;
    bottom: -40px;
    padding: 40px 32px;
    opacity: 1;
}

.about-card-label {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 20px;
    display: inline-block;
    padding: 6px 14px;
    border-radius: 20px;
}

.about-card:nth-child(1) .about-card-label {
    background: rgba(10, 175, 255, 0.15);
    color: #0af;
}

.about-card:nth-child(2) .about-card-label {
    background: rgba(102, 126, 234, 0.15);
    color: #667eea;
}

.about-card:nth-child(3) .about-card-label {
    background: rgba(143, 83, 204, 0.15);
    color: #8f53cc;
}

.about-card-title {
    font-family: var(--font-sans);
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--text-white);
    margin-bottom: 16px;
    line-height: 1.15;
    letter-spacing: -0.02em;
    transition: color 0.3s ease;
    white-space: nowrap;
}

.about-card-subtitle {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 24px;
    white-space: nowrap;
}

.about-card:nth-child(1) .about-card-subtitle {
    color: #0af;
}

.about-card:nth-child(2) .about-card-subtitle {
    color: #667eea;
}

.about-card:nth-child(3) .about-card-subtitle {
    color: #8f53cc;
}

.about-card-desc {
    font-size: 1.05rem;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.19;
    word-break: keep-all;
}

.about-card-back h4 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 24px;
    padding-left: 40px;
    letter-spacing: -0.02em;
    line-height: 1.25;
    transition: color 0.3s ease;
    word-break: keep-all;
}

.about-card:nth-child(1) .about-card-back h4 {
    color: #0af;
}

.about-card:nth-child(2) .about-card-back h4 {
    color: #667eea;
}

.about-card:nth-child(3) .about-card-back h4 {
    color: #8f53cc;
}


.about-card-back ul {
    list-style: none;
}

.about-card-back li {
    color: rgba(255, 255, 255, 0.95);
    font-size: 0.95rem;
    padding: 8px 0 8px 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    display: flex;
    align-items: flex-start;
    gap: 12px;
    line-height: 1.3;
    word-break: keep-all;
}

.about-card-back li:last-child {
    border-bottom: none;
}

.about-card-back li::before {
    content: '→';
    color: var(--primary-blue);
    font-weight: 600;
    flex-shrink: 0;
}

/* AI+ 리더십 - Cyan 화살표 */
.about-card:nth-child(1) .about-card-back li::before {
    color: #00aaff;
}

/* 계층별 리더십 - Indigo 화살표 */
.about-card:nth-child(2) .about-card-back li::before {
    color: #667eea;
}

/* 역량별 리더십 - Purple 화살표 */
.about-card:nth-child(3) .about-card-back li::before {
    color: #8f53cc;
}

/* 트랙별 그로우 효과 */
.about-card::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    border-radius: 0 16px 0 0;
    opacity: 0;
    transition: opacity 0.4s;
}

/* AI+ 리더십 - Cyan 그로우 */
.about-card:nth-child(1)::after {
    background: radial-gradient(circle at top right, rgba(0, 170, 255, 0.15), transparent);
}

/* 계층별 리더십 - Indigo 그로우 */
.about-card:nth-child(2)::after {
    background: radial-gradient(circle at top right, rgba(102, 126, 234, 0.15), transparent);
}

/* 역량별 리더십 - Purple 그로우 */
.about-card:nth-child(3)::after {
    background: radial-gradient(circle at top right, rgba(143, 83, 204, 0.15), transparent);
}

.about-card:hover::after {
    opacity: 1;
}

/* 트랙별 배경 그라데이션 */
.about-card:nth-child(1) .about-card-back {
    background: linear-gradient(135deg, rgba(0, 170, 255, 0.12) 0%, rgba(0, 0, 0, 0.95) 100%);
}

.about-card:nth-child(2) .about-card-back {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.12) 0%, rgba(0, 0, 0, 0.95) 100%);
}

.about-card:nth-child(3) .about-card-back {
    background: linear-gradient(135deg, rgba(143, 83, 204, 0.12) 0%, rgba(0, 0, 0, 0.95) 100%);
}

/* Reviews Section - 후기 롤링 */
.reviews {
    padding: 169px 0;
    background: #f5f5f5;
    overflow: hidden;
    position: relative;
}

.reviews::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('business-bg.png') center/cover no-repeat;
    filter: grayscale(100%);
    opacity: 0.15;
    z-index: 0;
}

.reviews-header {
    text-align: center;
    margin-bottom: 101px;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

.reviews-slider {
    position: relative;
    z-index: 1;
}


.reviews-title {
    font-family: var(--font-sans);
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 28px;
    letter-spacing: -0.03em;
    line-height: 1.25;
}

.reviews-desc {
    font-size: 1.15rem;
    color: #666;
    line-height: 1.33;
    letter-spacing: -0.01em;
}

.reviews-slider-wrap {
    position: relative;
    width: 100%;
}

/* 좌우 여백: 스크롤 컨테이너 padding은 브라우저마다 scroll 영역에 안 잡힐 수 있음 → wrap 또는 track padding 사용 */
.reviews-slider {
    width: 100%;
    overflow-x: auto;
    -ms-overflow-style: none;
    scrollbar-width: none;
    padding: 8px 0;
    text-align: left;
}

.reviews-slider::-webkit-scrollbar {
    display: none;
}

.reviews-track {
    display: inline-block;
    width: -webkit-fit-content;
    width: -moz-fit-content;
    width: fit-content;
}

.reviews-track-inner {
    display: -webkit-flex;
    display: flex;
    -webkit-flex-wrap: nowrap;
    flex-wrap: nowrap;
    gap: 24px;
    width: -webkit-max-content;
    width: -moz-max-content;
    width: max-content;
    flex-direction: row;
}

.reviews-track-inner::before,
.reviews-track-inner::after {
    content: '';
    flex-shrink: 0;
    width: 0;
}

/* 모바일: transform 기반 흐르는 애니메이션 (스크롤 없이 연속 흐름) */
.reviews-slider--marquee {
    overflow: hidden;
    scroll-behavior: auto;
}
.reviews-slider--marquee .reviews-track {
    will-change: transform;
    scroll-snap-type: none;
}
.reviews-slider--marquee .reviews-track-inner {
    will-change: inherit;
}
.reviews-slider--marquee .card-t32a {
    scroll-snap-align: none;
    flex-shrink: 0;
}

/* 1120 이하: 자동 슬라이드 끄고 네이티브 overflow 스크롤만 (JS에서 .reviews-slider--scroll 추가) */
@media (max-width: 1120px) {
    .reviews-slider--scroll {
        overflow-x: auto !important;
        overflow-y: hidden;
        -webkit-overflow-scrolling: touch;
        scroll-snap-type: none;
        touch-action: pan-x pan-y;
        -ms-overflow-style: none;
        scrollbar-width: none;
    }
    .reviews-slider--scroll::-webkit-scrollbar {
        display: none;
    }
    .reviews {
        overflow: visible;
    }
    .reviews-slider--scroll .reviews-track {
        display: -webkit-flex;
        display: flex;
        -webkit-flex-direction: row;
        flex-direction: row;
        transform: none !important;
        will-change: auto;
    }
    /* 스크롤 컨테이너 자식의 padding/margin은 끝 쪽이 무시됨 → flex 아이템 spacer로 확실하게 여백 확보 */
    .reviews-slider--scroll .reviews-track-inner::before,
    .reviews-slider--scroll .reviews-track-inner::after {
        content: '';
        flex-shrink: 0;
        width: 0;
    }
    .reviews-slider--scroll .card-t32a {
        scroll-snap-align: none;
        -webkit-flex-shrink: 0;
        flex-shrink: 0;
    }
    .reviews-slider-wrap .review-btn {
        display: none;
    }
}

.review-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: #fff;
    border: 1px solid #e5e5e5;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    transition: all 0.2s ease;
    color: #333;
}

.review-btn:hover {
    background: #0066FF;
    color: #fff;
    border-color: #0066FF;
}

.review-btn.prev-btn {
    left: 40px;
}

.review-btn.next-btn {
    right: 40px;
}


/* 중간 해상도(~865px): 카드가 정사각형처럼 넓어지는 것 방지 */
@media (min-width: 769px) and (max-width: 960px) {
    .reviews-track .card-t32a {
        flex-shrink: 0;
        width: 300px;
        min-width: 300px;
        max-width: 300px;
    }
}

/* 수강 후기 카드 — White Card + 상단 Full-Width 파란 블록 (3-2a) */
.card-t32a {
    position: relative;
    min-width: 320px;
    max-width: 320px;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.08);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: all 0.3s ease;
}

.card-t32a {
    transition: transform 0.35s ease, box-shadow 0.35s ease, opacity 0.35s ease;
}

.card-t32a:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 20px rgba(0, 102, 255, 0.14);
}

.card-t32a .t32a-block {
    height: 120px;
    min-height: 120px;
    padding: 16px 20px;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.card-t32a .t32a-course-label {
    font-size: 0.6rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.6);
    letter-spacing: 0.14em;
    text-transform: uppercase;
    margin-bottom: 4px;
}

.card-t32a .t32a-course-name {
    font-size: 1.125rem;
    font-weight: 800;
    color: #fff;
    line-height: 1.35;
    position: relative;
    z-index: 1;
}

.card-t32a .t32a-summary {
    font-size: 0.78rem;
    color: rgba(255, 255, 255, 0.75);
    margin-top: 4px;
    line-height: 1.4;
    position: relative;
    z-index: 1;
}

.card-t32a .t32a-body {
    padding: 20px 20px 22px;
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.card-t32a .t32a-review-text {
    flex: 1;
    font-size: 0.88rem;
    color: #333;
    line-height: 1.75;
    word-break: auto-phrase;
}

.card-t32a .t32a-review-text strong {
    font-weight: 700;
    color: #1a1a2e;
}

.card-t32a .t32a-meta {
    flex-shrink: 0;
    margin-top: 24px;
    padding-top: 14px;
    border-top: 1px solid #f0f0f0;
}

.card-t32a .t32a-name {
    font-size: 0.88rem;
    font-weight: 400;
    color: #1a1a1a;
}

/* 부서 없을 때도 한 줄 높이 유지해 카드 정렬 일관 */
.card-t32a .t32a-dept {
    font-size: 0.75rem;
    color: #999;
    min-height: 1.25em;
    line-height: 1.25;
}

/* 레거시 review-card (하위 호환용, 미사용 시 제거 가능) */
.review-card {
    position: relative;
    min-width: 320px;
    min-height: 254px;
    background: white;
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
    overflow: hidden;
}

.review-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 20px rgba(0, 102, 255, 0.12);
}

.review-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    margin-bottom: 27px;
}

.review-info {
    position: relative;
    display: flex;
    align-items: center;
    gap: 12px;
}

.review-dot {
    position: absolute;
    left: -100px;
    top: -140px;
    width: 270px;
    height: 270px;
    border-radius: 50%;
    flex-shrink: 0;
    opacity: 0.05;
    z-index: 0;
}

/* .review-info::before {
    content: '';
    position: absolute;
    left: -320px;
    top: -200px;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: var(--review-dot-color);
    opacity: 0.05;
    z-index: 0;
}
/* 두 번째 원: 비슷한 위치에 겹쳐서 표현 */


.review-user {

    display: flex;
    flex-direction: column;
    gap: 1px;
    z-index: 1;
}

.review-name {
    font-size: 1rem;
    font-weight: 600;
    color: #1a1a1a;
    z-index: 1;
}

.review-dept {
    font-size: 0.8rem;
    color: #666;
}

.review-stars {
    color: #ffa500;
    font-size: 0.9rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 1px;
}

.review-content {
    font-size: 1.05rem;
    color: #333;
    line-height: 1.7;
    z-index: 1;
}

/* Framework Section - Black */
.framework {
    background: #080d1e;
}

.framework-header {
    text-align: center;
    margin-bottom: 72px;
}

/* 모드 토글 버튼 */
/* Framework 테이블 (라이트 모드 고정) */
.framework-table-wrap {
    background: rgba(0, 0, 0, 0.5);
    overflow: hidden;
}

.framework-table {
    width: 100%;
}

/* 모바일 전용: 데스크톱에서는 숨김 */
.framework-mobile {
    display: none;
}

.framework-table-inner {
    display: block;
}

.framework-table-header {
    display: grid;
    grid-template-columns: 80px 1fr 1fr 1fr 1fr 1fr 1fr;
    background: transparent;
    border-bottom: 1px solid #052150;
    padding: 4px;
    gap: 4px;
}

.framework-header-cell {
    padding: 12px;
    font-weight: 600;
    font-size: 1.105rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-right: 1px solid #052150;
    border-radius: 0;
}

/* 마지막 헤더 셀은 우측 보더 제거 */
.framework-header-cell:last-child {
    border-right: none;
}

/* 직급 헤더 - 기본 흰색 */
.framework-header-cell:nth-child(1) {
    color: rgba(255, 255, 255, 0.95);
}

/* AI+ 리더십 - Cyan */
.framework-header-cell:nth-child(2) {
    color: #00aaff;
    font-size: 1.27rem;
}

/* 계층별 리더십 (3번째) - Indigo */
.framework-header-cell:nth-child(3) {
    color: #667eea;
    font-size: 1.27rem;
}

/* 역량별 리더십 (4번째) - Purple */
.framework-header-cell:nth-child(4) {
    color: #8f53cc;
    font-size: 1.27rem;
}

.framework-header-cell.ai-plus {
    color: #00aaff;
    font-size: 1.27rem;
}

.framework-subheader {
    display: grid;
    grid-template-columns: 80px 1fr 1fr 1fr 1fr 1fr 1fr;
    background: transparent;
    border-bottom: 1px solid #052150;
    padding: 4px;
    gap: 4px;
}

.framework-subheader-cell {
    padding: 12px;
    font-weight: 500;
    font-size: 0.975rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.9);
    background: rgba(0, 102, 255, 0.2);
    border: none;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 50px;
}

.framework-subheader-cell.category-label {
    background: rgba(0, 212, 255, 0.25);
    color: var(--accent-cyan);
    font-weight: 600;
    font-size: 0.975rem;
}

.framework-row {
    display: grid;
    grid-template-columns: 80px 1fr 1fr 1fr 1fr 1fr 1fr;
    border-bottom: 1px solid #052150;
    transition: background 0.3s ease;
    padding: 4px;
    gap: 1px;
}

/* L4~5 (고급관리자) 아래 진한 구분선 */
.framework-row:nth-child(3) {
    border-bottom: 1px solid #052150;
}

/* L3 (중급관리자) 아래 진한 구분선 */
.framework-row:nth-child(4) {
    border-bottom: 1px solid #052150;
}

/* L2 (중급관리자) 아래 진한 구분선 */
.framework-row:nth-child(5) {
    border-bottom: 1px solid #052150;
}

.framework-row:last-child {
    border-bottom: none;
}

.framework-row:hover {
    background: rgba(255, 255, 255, 0.08);
}

.framework-level {
    padding: 12px;
    font-weight: 700;
    background: rgba(0, 102, 255, 0.15);
    border: none;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 6px;
}

.level-icon {
    display: none;
}

.level-badge {
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.98rem;
    font-weight: 700;
    color: var(--primary-blue);
    background: rgba(255, 255, 255, 0.95);
}

.level-name {
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.85rem;
    font-weight: 500;
    text-align: center;
    line-height: 1.3;
}

.level-main {
    white-space: nowrap;
}

.level-sub {
    font-size: 0.85em;
    color: rgba(255, 255, 255, 0.6);
    font-weight: 400;
    white-space: nowrap;
}

.framework-cell {
    padding: 4px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    background: transparent;
}

.course-tag {
    display: block;
    padding: 10px 2px;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 600;
    border: none;
    color: white;
    transition: all 0.3s ease;
    line-height: 1.4;
    text-align: center;
}

/* 블록 전체가 링크 — a.course-link > .course-tag */
a.course-link {
    display: block;
    color: inherit;
    text-decoration: none;
    cursor: pointer;
}

/* AI+ 리더십 (2번째 셀) - Cyan */
/* L4~5 (첫 번째 row) - 원본 유지 */
.framework-row:nth-child(3) .framework-cell:nth-child(2) .course-tag {
    background: #00aaff;
}

.framework-row:nth-child(3) .framework-cell:nth-child(2) .course-tag:hover {
    background: #0095e0;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 170, 255, 0.4);
}

/* L3 (두 번째 row) - 20% 다운 */
.framework-row:nth-child(4) .framework-cell:nth-child(2) .course-tag {
    background: #0088cc;
}

.framework-row:nth-child(4) .framework-cell:nth-child(2) .course-tag:hover {
    background: #0077b3;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 136, 204, 0.4);
}

/* L2 (세 번째 row) - 35% 다운 */
.framework-row:nth-child(5) .framework-cell:nth-child(2) .course-tag {
    background: #006fa6;
}

.framework-row:nth-child(5) .framework-cell:nth-child(2) .course-tag:hover {
    background: #005d8c;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 111, 166, 0.4);
}

/* L1 (네 번째 row) - 35% 다운 */
.framework-row:nth-child(6) .framework-cell:nth-child(2) .course-tag {
    background: #006fa6;
}

.framework-row:nth-child(6) .framework-cell:nth-child(2) .course-tag:hover {
    background: #005d8c;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 111, 166, 0.4);
}

/* 계층별 리더십 (3, 4번째 셀) - Indigo */
/* L4~5 - 원본 유지 */
.framework-row:nth-child(3) .framework-cell:nth-child(3) .course-tag,
.framework-row:nth-child(3) .framework-cell:nth-child(4) .course-tag {
    background: #667eea;
}

.framework-row:nth-child(3) .framework-cell:nth-child(3) .course-tag:hover,
.framework-row:nth-child(3) .framework-cell:nth-child(4) .course-tag:hover {
    background: #5568d3;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

/* L3 - 20% 다운 */
.framework-row:nth-child(4) .framework-cell:nth-child(3) .course-tag,
.framework-row:nth-child(4) .framework-cell:nth-child(4) .course-tag {
    background: #5265bb;
}

.framework-row:nth-child(4) .framework-cell:nth-child(3) .course-tag:hover,
.framework-row:nth-child(4) .framework-cell:nth-child(4) .course-tag:hover {
    background: #4553a9;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(82, 101, 187, 0.4);
}

/* L2 - 35% 다운 */
.framework-row:nth-child(5) .framework-cell:nth-child(3) .course-tag,
.framework-row:nth-child(5) .framework-cell:nth-child(4) .course-tag {
    background: #425298;
}

.framework-row:nth-child(5) .framework-cell:nth-child(3) .course-tag:hover,
.framework-row:nth-child(5) .framework-cell:nth-child(4) .course-tag:hover {
    background: #364583;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(66, 82, 152, 0.4);
}

/* L1 - 35% 다운 */
.framework-row:nth-child(6) .framework-cell:nth-child(3) .course-tag,
.framework-row:nth-child(6) .framework-cell:nth-child(4) .course-tag {
    background: #425298;
}

.framework-row:nth-child(6) .framework-cell:nth-child(3) .course-tag:hover,
.framework-row:nth-child(6) .framework-cell:nth-child(4) .course-tag:hover {
    background: #364583;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(66, 82, 152, 0.4);
}

/* 역량별 리더십 (5, 6, 7번째 셀) - Purple */
/* L4~5 - 원본 유지 */
.framework-row:nth-child(3) .framework-cell:nth-child(5) .course-tag,
.framework-row:nth-child(3) .framework-cell:nth-child(6) .course-tag,
.framework-row:nth-child(3) .framework-cell:nth-child(7) .course-tag {
    background: #8f53cc;
}

.framework-row:nth-child(3) .framework-cell:nth-child(5) .course-tag:hover,
.framework-row:nth-child(3) .framework-cell:nth-child(6) .course-tag:hover,
.framework-row:nth-child(3) .framework-cell:nth-child(7) .course-tag:hover {
    background: #7c3fb8;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(143, 83, 204, 0.4);
}

/* L3 - 20% 다운 */
.framework-row:nth-child(4) .framework-cell:nth-child(5) .course-tag,
.framework-row:nth-child(4) .framework-cell:nth-child(6) .course-tag,
.framework-row:nth-child(4) .framework-cell:nth-child(7) .course-tag {
    background: #7242a3;
}

.framework-row:nth-child(4) .framework-cell:nth-child(5) .course-tag:hover,
.framework-row:nth-child(4) .framework-cell:nth-child(6) .course-tag:hover,
.framework-row:nth-child(4) .framework-cell:nth-child(7) .course-tag:hover {
    background: #633293;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(114, 66, 163, 0.4);
}

/* L2 - 35% 다운 */
.framework-row:nth-child(5) .framework-cell:nth-child(5) .course-tag,
.framework-row:nth-child(5) .framework-cell:nth-child(6) .course-tag,
.framework-row:nth-child(5) .framework-cell:nth-child(7) .course-tag {
    background: #5d3685;
}

.framework-row:nth-child(5) .framework-cell:nth-child(5) .course-tag:hover,
.framework-row:nth-child(5) .framework-cell:nth-child(6) .course-tag:hover,
.framework-row:nth-child(5) .framework-cell:nth-child(7) .course-tag:hover {
    background: #4f2a73;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(93, 54, 133, 0.4);
}

/* L1 - 35% 다운 */
.framework-row:nth-child(6) .framework-cell:nth-child(5) .course-tag,
.framework-row:nth-child(6) .framework-cell:nth-child(6) .course-tag,
.framework-row:nth-child(6) .framework-cell:nth-child(7) .course-tag {
    background: #5d3685;
}

.framework-row:nth-child(6) .framework-cell:nth-child(5) .course-tag:hover,
.framework-row:nth-child(6) .framework-cell:nth-child(6) .course-tag:hover,
.framework-row:nth-child(6) .framework-cell:nth-child(7) .course-tag:hover {
    background: #4f2a73;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(93, 54, 133, 0.4);
}

.course-tag.highlight {
    font-weight: 700;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

/* 타이핑 효과 */
.course-tag {
    opacity: 0;
    transform: translateY(10px);
}

.course-tag.typing {
    animation: typingFadeIn 0.4s ease forwards;
}

@keyframes typingFadeIn {
    0% {
        opacity: 0;
        transform: translateY(10px);
    }

    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Track Section - White */
.track {
    padding-bottom: 82px;
}

.track-header {
    text-align: center;
    margin-bottom: 80px;
}

.track-timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.track-timeline::before {
    content: '';
    position: absolute;
    left: 32px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--primary-blue) 0%, var(--accent-cyan) 100%);
}

.track-building {
    position: relative;
    margin-top: 40px;
    margin-bottom: 0;
    margin-left: 32px;
    transform: translateX(-50%);
    width: 200px;
    z-index: 10;
    display: flex;
    align-items: flex-end;
    gap: 40px;
    overflow: hidden;
    padding-bottom: 0;
}

.track-building img:first-child {
    width: 200px;
    height: auto;
    display: block;
    filter: brightness(1.1);
}

.track-people {
    width: 106px;
    height: auto;
    display: block;
    filter: brightness(1.1);
    margin-bottom: -5px;
    position: relative;
}

.track-item {
    display: flex;
    gap: 48px;
    padding: 28px 0;
    position: relative;
}

.track-dot {
    width: 20px;
    height: 20px;
    min-width: 20px;
    background: var(--bg-white);
    border: 3px solid var(--primary-blue);
    border-radius: 50%;
    position: relative;
    z-index: 1;
    margin-top: 8px;
    margin-left: 23px;
    transition: all 0.3s ease;
}

.track-item:hover .track-dot {
    background: var(--primary-blue);
    box-shadow: 0 0 24px rgba(0, 102, 255, 0.5);
}

.track-content {
    flex: 1;
    background: var(--bg-gray);
    border-radius: 24px;
    padding: 36px;
    transition: all 0.3s ease;
    border: 1px solid transparent;
    display: grid;
    grid-template-columns: 2fr 8fr;
    gap: 40px;
    align-items: start;
}

.track-item:hover .track-content {
    border-color: var(--primary-blue);
    box-shadow: 0 12px 40px rgba(0, 102, 255, 0.12);
}

.track-header-section {
    display: flex;
    flex-direction: column;
    gap: 2px;
    align-items: flex-start;
}

.track-level-label {
    display: flex;
    align-items: center;
    margin-bottom: 1px;
}

.track-badge {
    background: transparent;
    color: var(--primary-blue);
    padding: 0;
    border-radius: 0;
    font-size: 1.1rem;
    font-weight: 700;
}

.track-level-name {
    color: #000000;
    font-size: 1.64rem;
    font-weight: 500;
    background: transparent;
    padding: 0;
    border-radius: 0;
    display: inline-block;
    line-height: 1.44;
}

.track-title {
    font-family: var(--font-sans);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-black);
    margin-bottom: 12px;
    line-height: 1.4;
    letter-spacing: -0.02em;
}

.track-desc {
    color: var(--text-gray);
    font-size: 1rem;
    margin-bottom: 24px;
    line-height: 1.7;
}

.track-competency {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 30px;
    background: transparent;
    align-items: flex-start;
}

.competency-title {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-gray);
    display: none;
}

.competency-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.competency-tag {
    display: inline-block;
    padding: 6px 12px;
    background: #000000;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 500;
    color: #FFFFFF;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.competency-tag::before {
    content: '# ';
    opacity: 0.7;
}

.competency-tag:hover {
    background: #1a1a1a;
    border-color: var(--primary-blue);
}

.track-courses {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* 기본 호버 - 컬러 채우기 제거, subtle 효과만 */
.track-course:hover {
    border-color: rgba(0, 102, 255, 0.35);
    background: rgba(0, 102, 255, 0.04);
    box-shadow: 0 4px 12px rgba(0, 102, 255, 0.10);
    transform: translateY(-1px);
}

.track-course-type {
    font-size: 0.7rem;
    padding: 4px 10px;
    border-radius: 6px;
    font-weight: 600;
    flex-shrink: 0;
    margin-top: 2px;
}

.track-competency {
    font-size: 0.85rem;
    color: var(--primary-blue);
    font-weight: 500;
    margin-bottom: 20px;
    padding: 8px 12px;
    background: transparent;
    border-radius: 6px;
    display: inline-block;
}

.track-course {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px 20px;
    background: rgba(0, 102, 255, 0.04);
    border: 1px solid rgba(0, 102, 255, 0.15);
    border-radius: 12px;
    font-size: 0.9rem;
    color: var(--text-black);
    text-decoration: none;
    transition: all 0.3s ease;
    width: 100%;
    position: relative;
}

/* 바로가기 버튼 */
.track-course-link {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    padding: 8px 16px;
    background: white;
    color: #888888;
    border: 1px solid #cccccc;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    opacity: 1;
    visibility: visible;
    transition: all 0.3s ease;
    pointer-events: auto;
}

.track-course-link::after {
    content: '→';
    display: inline-block;
    max-width: 0;
    margin-left: 0;
    overflow: hidden;
    white-space: nowrap;
    line-height: 1;
    vertical-align: middle;
    transition: max-width 0.3s ease, margin-left 0.3s ease;
}

.track-course:hover .track-course-link {
    opacity: 1;
    visibility: visible;
    background: #03193f;
    color: #ffffff;
    border-color: #03193f;
    padding-right: 12px;
}

.track-course:hover .track-course-link::after {
    max-width: 2em;
    margin-left: 8px;
}

.track-course-info {
    display: flex;
    flex-direction: column;
    gap: 1px;
    flex: 1;
}

.track-course-info strong {
    font-size: 1.14rem;
    font-weight: 600;
    color: var(--text-black);
}

.track-course-info span {
    font-size: 0.8rem;
    color: var(--text-gray);
    line-height: 1.5;
}

/* Instructors Section - Black */
.instructors-header {
    text-align: center;
    margin-bottom: 72px;
}

.instructors-header .section-title {
    position: relative;
    display: inline-block;
    padding-bottom: 20px;
}

.instructors-header .section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--primary-blue);
}

.instructor-category {
    margin-bottom: 72px;
}

.instructor-category:last-child {
    margin-bottom: 0;
}

.category-title {
    font-family: var(--font-sans);
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 1px solid #052150;
}

.category-badge {
    background: var(--gradient-blue);
    padding: 10px 28px;
    border-radius: 100px;
    font-weight: 700;
    font-size: 1rem;
    color: var(--text-white);
}

.category-label {
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.95rem;
}

.instructor-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    justify-items: center;
}

.instructor-card {
    background: transparent;
    text-align: center;
    transition: all 0.4s ease;
    max-width: 200px;
}

.instructor-card:hover {
    transform: translateY(-8px);
}

.instructor-photo-wrap {
    position: relative;
    margin-bottom: 16px;
    overflow: hidden;
    border-radius: 8px;
}

.instructor-photo {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    object-position: center top;
    filter: grayscale(100%);
    transition: all 0.4s ease;
    display: block;
}

.instructor-card:hover .instructor-photo {
    filter: grayscale(0%);
    transform: scale(1.05);
}

.instructor-role {
    position: absolute;
    bottom: 0;
    left: 0;
    background: var(--primary-blue);
    color: var(--text-white);
    padding: 10px 18px;
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 0 6px 0 0;
}

.instructor-name {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--text-white);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.instructor-desc {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.9rem;
    line-height: 1.19;
    margin-bottom: 20px;
}

.instructor-social {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.social-item {
    display: flex;
    align-items: center;
    gap: 12px;
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.9rem;
}

.social-icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.social-icon svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

/* Stats Section - White */
.stats {
    text-align: center;
    background: var(--bg-gray);
}

.stats-title {
    font-family: var(--font-sans);
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    margin-bottom: 72px;
    letter-spacing: -0.02em;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
    max-width: 900px;
    margin: 0 auto;
}

.stat-item {
    text-align: center;
}

.stat-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: var(--bg-white);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-blue);
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}

.stat-label {
    font-size: 1.05rem;
    color: var(--text-gray);
}

/* CTA Section - Black */
.cta {
    text-align: center;
}

.cta-box {
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.1) 0%, rgba(0, 0, 0, 0.9) 100%);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 40px;
    padding: 100px 60px;
    position: relative;
    overflow: hidden;
}

.cta-box::before {
    content: '';
    position: absolute;
    top: -100%;
    left: -100%;
    width: 300%;
    height: 300%;
    background: radial-gradient(circle at center, rgba(0, 102, 255, 0.08) 0%, transparent 40%);
    animation: ctaGlow 10s linear infinite;
}

@keyframes ctaGlow {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-title {
    font-family: var(--font-sans);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 14px;
    letter-spacing: -0.03em;
}

.cta-desc {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.2rem;
    margin-bottom: 48px;
}

.cta-buttons {
    display: flex;
    gap: 48px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 56px;
}

.cta-contact {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
    padding-top: 48px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 14px;
    color: rgba(255, 255, 255, 0.9);
    font-size: 1rem;
}

.contact-icon {
    width: 52px;
    height: 52px;
    background: rgba(0, 102, 255, 0.15);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: #ffffff;
    flex-shrink: 0;
}

.contact-item a {
    color: var(--text-white);
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-item a:hover {
    color: var(--accent-cyan);
}

.cta-notice {
    margin-top: 24px;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
}

/* Footer text (inside CTA section) */
.cta.section-black {
    position: relative;
}

.cta.section-black > .container > .footer-text {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.35);
    font-size: 0.75rem;
}

/* ===== 모바일 터치·세이프에리어 (전 구간) ===== */
html {
    -webkit-tap-highlight-color: transparent;
}

@media (hover: none) {
    .btn-primary:hover,
    .btn-secondary:hover,
    .about-card:hover {
        transform: none;
    }
    .about-card:active {
        transform: scale(0.98);
    }
}

/* 터치 타겟 최소 44px 권장, 더블탭 줌 지연 제거 */
a.btn-primary,
a.btn-secondary,
button.review-btn,
.modal-close,
.track-course {
    min-height: 44px;
    touch-action: manipulation;
}
.about-card {
    touch-action: manipulation;
}

/* 마퀴 모드에서만 세로 터치만 허용; 스크롤 모드(.reviews-slider--scroll)는 1120px 미디어에서 pan-x 적용 */
.reviews-slider--marquee {
    touch-action: pan-y pinch-zoom;
}

/* 노치/세이프에리어 대응 */
header {
    padding-top: env(safe-area-inset-top, 0);
}
.cta.section-black > .container > .footer-text {
    padding-bottom: env(safe-area-inset-bottom, 0);
}

/* Responsive */
/* 1120~768px: about 2열 (기준 스타일 — gap/패딩 등은 base와 동일, 열 수만 2) */
@media (max-width: 1120px) and (min-width: 769px) {
    .about-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
    .about-card-title,
    .about-card-subtitle {
        white-space: normal;
    }
}

@media (max-width: 1024px) {
    .container {
        padding: 0 24px;
    }

    /* 헤더·컨텐츠 실제 콘텐츠 영역 너비 동일 (드래그/리사이즈 시 크기 차이 방지) */
    .header-inner {
        padding: 0 24px;
    }

    section {
        padding: 120px 0;
    }

    .model-content {
        grid-template-columns: 1fr;
        gap: 56px;
    }

    .model-pillars {
        grid-template-columns: repeat(3, 1fr);
    }

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

    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 32px;
    }

    /* Framework 테이블 가로 스크롤 */
    .framework-table-wrap {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        margin: 0 -24px;
        padding: 0 24px;
    }
    .framework-table {
        min-width: 700px;
    }
}

@media (max-width: 768px) {
    section {
        padding: 80px 0;
    }
    
    .mobile-break {
        display: block;
    }

    .hero {
        padding-top: calc(80px + 6vh);
        min-height: 100svh;
        flex-direction: column;
    }

    .hero-cube-container {
        right: 5%;
        top: auto;
        bottom: 18%;
        transform: none;
        opacity: 0.5;
    }
    .cube {
        width: 200px;
        height: 200px;
    }
    /* 메인 큐브만 크기/깊이 조정 — 작은 큐브는 기본 치수 유지로 정육면체 형태 보존 */
    .cube > .cube-face {
        width: 200px;
        height: 200px;
    }
    .cube > .cube-front { transform: translateZ(100px); }
    .cube > .cube-back { transform: translateZ(-100px) rotateY(180deg); }
    .cube > .cube-right { transform: rotateY(90deg) translateZ(100px); }
    .cube > .cube-left { transform: rotateY(-90deg) translateZ(100px); }
    .cube > .cube-top { transform: rotateX(90deg) translateZ(100px); }
    .cube > .cube-bottom { transform: rotateX(-90deg) translateZ(100px); }
    .cube-text {
        font-size: 120px;
    }
    /* 768px 이하: 서브 큐브 숨김 */
    .cube-small,
    .cube-small-bottom,
    .cube-small-right {
        display: none;
    }
    .cube-floor {
        width: 400px;
        bottom: -200px;
    }

    .hero .hero-content {
        transform: none;
        padding: 0 20px;
    }

    .hero .hero-title,
    .hero .hero-desc {
        max-width: 100%;
    }

    .hero .hero-desc br {
        display: none;
    }
    .hero .hero-desc {
        font-size: 0.95rem;
        white-space: pre-line;
    }

    .hero-bottom {
        position: static;
        transform: none;
        margin-top: 48px;
        padding-top: 32px;
        padding-left: 32px;
        padding-right: 32px;
        grid-template-columns: 1fr;
        gap: 0;
    }
    .hero-bottom-item {
        padding: 24px 0;
    }
    .hero-bottom-item:first-child {
        padding-left: 0;
        padding-right: 0;
    }
    .hero-bottom-item:last-child {
        transform: none;
        padding-left: 0;
    }
    .bottom-title {
        font-size: 1.1rem;
    }
    .bottom-desc {
        font-size: 0.85rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn-primary,
    .btn-outline {
        width: 100%;
        max-width: 320px;
        justify-content: center;
    }

    /* 768px 이하: 1열, 기준 스타일 일괄 적용 (gap 24px, padding 40px 32px), 접힘 방지 */
    .about-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .about-card {
        min-height: 400px;
        padding: 40px 32px;
    }
    .about-card-front {
        padding: 40px 32px;
    }
    .about-card:hover .about-card-back,
    .about-card.touch-active .about-card-back {
        top: -40px;
        left: -32px;
        right: -32px;
        bottom: -40px;
        padding: 40px 32px;
    }
    .about-card-title {
        font-size: 1.75rem;
    }
    .about-card-back h4 {
        font-size: 1.6rem;
        margin-bottom: 20px;
        line-height: 1.25;
    }

    .section-title {
        font-size: clamp(1.75rem, 5vw, 2.25rem);
    }
    .section-desc {
        font-size: 0.95rem;
    }

    /* 체계도: 컨테이너 패딩(24px) 상쇄로 다른 콘텐츠와 동일 너비 */
    .framework-table-wrap {
        margin: 0 -24px;
        padding: 0 28px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    .framework-table-inner {
        display: block !important;
        min-width: 880px;
    }
    .framework-mobile {
        display: none !important;
    }
    .framework-table-header,
    .framework-subheader,
    .framework-row {
        grid-template-columns: 72px 1fr 1fr 1fr 1fr 1fr 1fr;
    }
    .framework-header-cell {
        padding: 10px 8px;
        font-size: 0.9rem;
    }
    .framework-header-cell.ai-plus,
    .framework-header-cell:nth-child(3),
    .framework-header-cell:nth-child(4) {
        font-size: 0.95rem;
    }
    .framework-subheader-cell {
        padding: 8px 6px;
        font-size: 0.8rem;
        min-height: 44px;
    }
    .framework-level {
        padding: 10px 8px;
    }
    .level-badge {
        font-size: 0.85rem;
        padding: 4px 10px;
    }
    .level-name {
        font-size: 0.8rem;
    }
    .framework-cell {
        padding: 2px;
        gap: 4px;
    }
    .framework-cell .course-tag {
        padding: 6px 4px;
        font-size: 0.65rem;
        line-height: 1.35;
    }
    .framework-mobile-level {
        background: rgba(255, 255, 255, 0.06);
        border: 1px solid rgba(255, 255, 255, 0.12);
        border-radius: 14px;
        margin-bottom: 12px;
        overflow: hidden;
        transition: border-color 0.25s ease, box-shadow 0.25s ease;
    }
    .framework-mobile-level:last-child {
        margin-bottom: 0;
    }
    .framework-mobile-level.is-open {
        border-color: rgba(0, 170, 255, 0.4);
        box-shadow: 0 0 20px rgba(0, 170, 255, 0.15);
    }
    .framework-mobile-level-header {
        width: 100%;
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 18px 20px;
        background: transparent;
        border: none;
        color: #fff;
        font-family: var(--font-sans);
        font-size: 1rem;
        font-weight: 700;
        text-align: left;
        cursor: pointer;
        transition: background 0.2s ease;
        -webkit-tap-highlight-color: transparent;
    }
    .framework-mobile-level-header:active {
        background: rgba(255, 255, 255, 0.06);
    }
    .framework-mobile-badge {
        flex-shrink: 0;
        padding: 6px 12px;
        border-radius: 8px;
        background: rgba(0, 102, 255, 0.35);
        color: #00aaff;
        font-size: 0.8rem;
        font-weight: 800;
    }
    .framework-mobile-level-title {
        flex: 1;
    }
    .framework-mobile-level-sub {
        font-size: 0.85rem;
        font-weight: 500;
        color: rgba(255, 255, 255, 0.7);
    }
    .framework-mobile-chevron {
        flex-shrink: 0;
        width: 20px;
        height: 20px;
        border-right: 2px solid rgba(255, 255, 255, 0.6);
        border-bottom: 2px solid rgba(255, 255, 255, 0.6);
        transform: rotate(45deg);
        margin-left: 8px;
        transition: transform 0.25s ease;
    }
    .framework-mobile-level.is-open .framework-mobile-chevron {
        transform: rotate(-135deg);
    }
    .framework-mobile-level-body {
        display: none;
        padding: 0 20px 20px;
    }
    .framework-mobile-level.is-open .framework-mobile-level-body {
        display: block;
        animation: frameworkMobileOpen 0.3s ease;
    }
    @keyframes frameworkMobileOpen {
        from { opacity: 0; }
        to { opacity: 1; }
    }
    .framework-mobile-cat {
        margin-top: 16px;
        padding-top: 16px;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
    }
    .framework-mobile-cat:first-child {
        margin-top: 0;
        padding-top: 0;
        border-top: none;
    }
    .framework-mobile-cat-label {
        display: block;
        font-size: 0.75rem;
        font-weight: 600;
        color: #00aaff;
        letter-spacing: 0.05em;
        margin-bottom: 10px;
    }
    .framework-mobile-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
    }
    .framework-mobile-tags .course-tag,
    .framework-mobile-tags .course-link {
        display: inline-block;
        padding: 8px 12px;
        font-size: 0.8rem;
        border-radius: 8px;
        margin: 0;
    }
    .framework-mobile-tags a.course-link {
        text-decoration: none;
        color: inherit;
    }

    .model-pillars {
        grid-template-columns: 1fr;
    }

    .track-timeline::before {
        left: 9px;
    }

    .track-item {
        gap: 28px;
    }

    .track-dot {
        width: 18px;
        height: 18px;
        min-width: 18px;
        margin-left: 0;
    }

    .track-content {
        padding: 28px;
    }

    /* 에센셜 트랙: 컨테이너 패딩(24px) 상쇄로 다른 콘텐츠와 동일 너비 */
    .track-b-wrap {
        margin: 0 -24px;
        padding: 0;
    }
    .track-b-timeline {
        padding: 0 0 60px;
        align-items: stretch;
    }
    .track-b-desktop {
        display: flex !important;
        flex-direction: column;
        align-items: stretch;
        gap: 24px;
    }
    .track-b-mobile {
        display: none !important;
    }
    .track-b-item {
        width: 100%;
        min-width: 0;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        margin: 0;
        padding: 0;
    }
    .track-b-item .track-b-content {
        min-width: min(320px, 92vw);
        width: max-content;
        box-sizing: border-box;
    }
    .track-b-content {
        padding: 20px 16px;
    }
    .track-b-layout-d .track-b-content {
        grid-template-columns: 100px 1fr;
        gap: 0;
        padding: 16px 24px 20px;
        margin: 0 20px;
    }
    .track-b-layout-d .track-d-left {
        padding: 16px 12px;
    }
    .track-b-layout-d .track-d-left .track-d-step-lbl {
        font-size: 0.6rem;
    }
    .track-b-layout-d .track-d-left .track-d-num {
        font-size: 2.2rem;
    }
    .track-b-layout-d .track-d-left .track-d-grade {
        font-size: 0.8rem;
    }
    .track-b-layout-d .track-d-right {
        padding: 16px 18px;
    }
    .track-b-layout-d .track-d-right-head .track-d-badge {
        font-size: 0.65rem;
    }
    .track-b-layout-d .track-d-right-head .track-d-name {
        font-size: 1rem;
    }
    .track-b-layout-d .track-d-right .track-competency .competency-tag {
        font-size: 0.75rem;
        padding: 3px 8px;
    }
    .track-b-content .track-course-info strong {
        font-size: 1.1rem;
    }
    .track-b-content .track-course-info span {
        font-size: 0.75rem;
    }
    .track-b-content .track-course {
        padding: 14px 16px;
    }
    .track-b-content .track-course .track-course-type {
        font-size: 0.65rem;
        padding: 3px 8px;
    }
    .track-b-content .track-course-link {
        font-size: 0.72rem;
        padding: 5px 10px;
    }

    /* 에센셜 트랙: 768px에서 레이아웃 비율·글자 크기 조정 */
    .track-header .section-label {
        font-size: 0.8rem;
    }
    .track-header .section-desc {
        font-size: 0.9rem;
    }

    .track-b-content .track-courses {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    .track-b-content .track-courses .track-course {
        max-width: none;
    }

    /* (아코디언 UI는 미사용, 스타일만 유지) */
    .track-mobile-step {
        background: #fff;
        border: 1px solid rgba(0, 102, 255, 0.12);
        border-radius: 16px;
        margin-bottom: 12px;
        overflow: hidden;
        box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
        transition: border-color 0.25s ease, box-shadow 0.25s ease;
    }
    .track-mobile-step:last-child {
        margin-bottom: 0;
    }
    .track-mobile-step.is-open {
        border-color: rgba(0, 102, 255, 0.3);
        box-shadow: 0 4px 20px rgba(0, 102, 255, 0.12);
    }
    .theme-purple.track-mobile-step.is-open {
        border-color: rgba(143, 83, 204, 0.3);
        box-shadow: 0 4px 20px rgba(143, 83, 204, 0.12);
    }
    .track-mobile-step-header {
        width: 100%;
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 18px 20px;
        background: transparent;
        border: none;
        color: #111;
        font-family: var(--font-sans);
        font-size: 1.05rem;
        font-weight: 700;
        text-align: left;
        cursor: pointer;
        transition: background 0.2s ease;
        -webkit-tap-highlight-color: transparent;
    }
    .track-mobile-step-header:active {
        background: rgba(0, 0, 0, 0.04);
    }
    .track-mobile-step-num {
        flex-shrink: 0;
        width: 40px;
        height: 40px;
        line-height: 40px;
        text-align: center;
        border-radius: 10px;
        font-size: 0.9rem;
        font-weight: 800;
    }
    .theme-blue .track-mobile-step-num {
        background: rgba(0, 102, 255, 0.12);
        color: #0066ff;
    }
    .theme-purple .track-mobile-step-num {
        background: rgba(143, 83, 204, 0.12);
        color: #8f53cc;
    }
    .track-mobile-step-title {
        flex: 1;
    }
    .track-mobile-chevron {
        flex-shrink: 0;
        width: 18px;
        height: 18px;
        border-right: 2px solid #666;
        border-bottom: 2px solid #666;
        transform: rotate(45deg);
        margin-left: 8px;
        transition: transform 0.25s ease;
    }
    .track-mobile-step.is-open .track-mobile-chevron {
        transform: rotate(-135deg);
    }
    .track-mobile-step-body {
        display: none;
        padding: 0 20px 20px;
    }
    .track-mobile-step.is-open .track-mobile-step-body {
        display: block;
        animation: trackMobileOpen 0.3s ease;
    }
    @keyframes trackMobileOpen {
        from { opacity: 0; }
        to { opacity: 1; }
    }
    .track-mobile-competency {
        margin-bottom: 16px;
    }
    .track-mobile-competency .competency-title {
        display: block;
        font-size: 0.8rem;
        font-weight: 600;
        color: #666;
        margin-bottom: 8px;
    }
    .track-mobile-competency .competency-tags {
        gap: 6px;
    }
    .track-mobile-competency .competency-tag {
        padding: 4px 10px;
        font-size: 0.75rem;
    }
    .track-mobile-courses {
        display: flex;
        flex-direction: column;
        gap: 12px;
    }
    .track-mobile-course {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
        padding: 16px;
        border-radius: 12px;
        border: 1px solid #e8e8e8;
        background: #fafafa;
        text-decoration: none;
        color: inherit;
        transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
    }
    .track-mobile-course:hover,
    .track-mobile-course:active {
        border-color: rgba(0, 102, 255, 0.35);
        background: rgba(0, 102, 255, 0.05);
    }
    .theme-purple .track-mobile-course:hover,
    .theme-purple .track-mobile-course:active {
        border-color: rgba(143, 83, 204, 0.35);
        background: rgba(143, 83, 204, 0.05);
    }
    .track-mobile-course .track-course-type {
        font-size: 0.7rem;
        padding: 4px 10px;
    }
    .track-mobile-course strong {
        font-size: 1rem;
        font-weight: 700;
        color: #111;
    }
    .track-mobile-course-desc {
        font-size: 0.8rem;
        color: #666;
        line-height: 1.5;
    }
    .track-mobile-course .track-course-link {
        position: static;
        margin-top: 4px;
        transform: none;
        font-size: 0.8rem;
        padding: 6px 12px;
    }

    /* 강사진: 모든 해상도에서 최소 2명씩 한 줄에 표시 */
    .instructor-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 20px;
    }
    .instructor-card {
        max-width: 100%;
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .cta-box {
        padding: 48px 24px;
        border-radius: 24px;
    }
    .cta-buttons {
        flex-direction: column;
        gap: 16px;
        margin-bottom: 40px;
    }
    .cta-buttons .btn-primary,
    .cta-buttons .btn-secondary {
        width: 100%;
        max-width: 100%;
        justify-content: center;
    }
    .cta-contact {
        flex-direction: column;
        gap: 24px;
        align-items: flex-start;
    }
    .contact-item {
        font-size: 0.95rem;
    }

    .reviews {
        padding: 80px 0;
    }
    .reviews-header {
        margin-bottom: 48px;
    }
    .reviews .reviews-header .section-title {
        font-size: 1.5rem;
        line-height: 1.3;
    }
    .reviews-slider--scroll .reviews-track-inner::before,
    .reviews-slider--scroll .reviews-track-inner::after {
        width: 0;
    }
    .reviews-track-inner {
        gap: 14px;
    }
    .card-t32a {
        min-width: 260px;
        max-width: 280px;
    }
    .card-t32a .t32a-block {
        height: 100px;
        min-height: 100px;
        padding: 12px 16px;
    }
    .card-t32a .t32a-course-name {
        font-size: 0.95rem;
    }
    .card-t32a .t32a-summary {
        font-size: 0.7rem;
    }
    .card-t32a .t32a-body {
        padding: 14px 16px 18px;
    }
    .card-t32a .t32a-review-text {
        font-size: 0.8rem;
        line-height: 1.65;
    }
    .card-t32a .t32a-meta {
        margin-top: 16px;
        padding-top: 12px;
    }
    .card-t32a .t32a-name {
        font-size: 0.8rem;
    }
    .card-t32a .t32a-dept {
        font-size: 0.7rem;
    }
}

/* 초소형 기기 (480px 이하) */
/* iOS 입력 필드 포커스 시 줌 방지 (16px 이상 권장) */
@media (max-width: 768px) {
    .download-form .field-input,
    .download-form .field-textarea {
        font-size: 16px;
    }
}

/* 768px 이하: 헤더 높이 60px + top02 숨김 + 좌측 로고 축소 */
@media (max-width: 768px) {
    header,
    .header-inner {
        height: 60px;
    }
    .header-inner {
        gap: 12px;
    }
    .header-center {
        display: none;
    }
    .header-left {
        min-width: 0;
        flex-shrink: 1;
    }
    .header-left img {
        max-width: 100%;
        max-height: 52px;
        min-height: 32px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    /* 헤더·컨텐츠 동일 패딩 → 실제 콘텐츠 너비 일치 (리사이즈 시 크기 차이 방지) */
    .header-inner {
        padding: 0 16px;
        gap: 10px;
    }
    .header-left img,
    .header-center img {
        max-height: 48px;
        min-height: 28px;
    }
    .header-right .header-text {
        font-size: 0.9375rem;
    }

    section {
        padding: 56px 0;
    }

    .hero {
        padding-top: calc(64px + 4vh);
    }
    .hero-cube-container {
        right: 2%;
        bottom: 12%;
        opacity: 0.35;
    }
    .cube {
        width: 140px;
        height: 140px;
    }
    /* 메인 큐브만 크기/깊이 조정 — 작은 큐브는 기본 치수 유지로 정육면체 형태 보존 */
    .cube > .cube-face {
        width: 140px;
        height: 140px;
    }
    .cube > .cube-front { transform: translateZ(70px); }
    .cube > .cube-back { transform: translateZ(-70px) rotateY(180deg); }
    .cube > .cube-right { transform: rotateY(90deg) translateZ(70px); }
    .cube > .cube-left { transform: rotateY(-90deg) translateZ(70px); }
    .cube > .cube-top { transform: rotateX(90deg) translateZ(70px); }
    .cube > .cube-bottom { transform: rotateX(-90deg) translateZ(70px); }
    .cube-text {
        font-size: 80px;
    }
    .hero .hero-content {
        padding: 0 16px;
    }
    .hero .hero-title {
        font-size: clamp(1.6rem, 8vw, 2.2rem);
    }
    .hero .hero-subtitle {
        font-size: 0.9rem;
    }
    .hero .hero-desc {
        font-size: 0.875rem;
        margin-top: 20px;
    }
    .hero-bottom {
        padding-left: 24px;
        padding-right: 24px;
    }
    .hero-bottom-item {
        padding: 20px 0;
    }
    .hero-bottom-item:first-child,
    .hero-bottom-item:last-child {
        padding-left: 0;
        padding-right: 0;
    }

    .about-header {
        margin-bottom: 48px;
    }
    /* 480px 이하: 기준 스타일 유지 (padding 40px 32px, back -40 -32) */
    .about-card {
        padding: 40px 32px;
    }
    .about-card-front {
        padding: 40px 32px;
    }
    .about-card-back {
        padding: 0;
    }
    .about-card:hover .about-card-back,
    .about-card.touch-active .about-card-back {
        top: -40px;
        left: -32px;
        right: -32px;
        bottom: -40px;
        padding: 40px 32px;
    }
    .about-card-title {
        font-size: 1.5rem;
    }
    .about-card-subtitle {
        font-size: 1rem;
    }
    .about-card-desc,
    .about-card-back li {
        font-size: 0.9rem;
    }
    .about-card-back h4 {
        font-size: 1.35rem;
        margin-bottom: 16px;
        line-height: 1.25;
    }

    .section-title {
        font-size: 1.5rem;
    }
    .framework-header {
        margin-bottom: 40px;
    }
    .framework-table-wrap {
        margin: 0 -16px;
        padding: 0 16px;
    }

    .track-header {
        margin-bottom: 32px;
    }
    .instructors-header {
        margin-bottom: 40px;
    }
    .track-b-wrap {
        margin: 0 -16px;
        padding: 0;
    }
    .track-b-timeline {
        padding: 0 0 48px;
    }
    .track-b-item {
        margin: 0;
        padding: 0;
    }
    .track-b-item .track-b-content {
        min-width: min(280px, 92vw);
    }
    .track-b-layout-d .track-b-content {
        grid-template-columns: 72px 1fr;
        padding: 12px 16px 16px;
        margin: 0 16px;
    }
    .track-b-layout-d .track-d-left {
        padding: 12px 8px;
    }
    .track-b-layout-d .track-d-left .track-d-step-lbl {
        font-size: 0.55rem;
    }
    .track-b-layout-d .track-d-left .track-d-num {
        font-size: 1.75rem;
    }
    .track-b-layout-d .track-d-left .track-d-grade {
        font-size: 0.7rem;
    }
    .track-b-layout-d .track-d-right {
        padding: 12px 14px;
    }
    .track-b-layout-d .track-d-right-head .track-d-badge {
        font-size: 0.6rem;
    }
    .track-b-layout-d .track-d-right-head .track-d-name {
        font-size: 0.9rem;
    }
    .track-b-layout-d .track-d-right .track-competency .competency-tag {
        font-size: 0.7rem;
        padding: 2px 6px;
    }
    .track-b-content {
        padding: 14px 12px;
    }
    .track-b-content .track-course-info strong {
        font-size: 0.95rem;
    }
    .track-b-content .track-course-info span {
        font-size: 0.65rem;
    }
    .track-b-content .track-course {
        padding: 10px 12px;
    }
    .track-b-content .track-course .track-course-type {
        font-size: 0.6rem;
        padding: 2px 6px;
    }
    .track-b-content .track-course-link {
        font-size: 0.65rem;
        padding: 4px 8px;
    }

    /* 에센셜 트랙: 480px에서 1열·헤더 글자 축소 */
    .track-header .section-label {
        font-size: 0.75rem;
    }
    .track-header .section-desc {
        font-size: 0.85rem;
    }
    .track-b-content .track-courses {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .cta-box {
        padding: 32px 20px;
        border-radius: 20px;
    }
    .cta-title {
        font-size: 1.5rem;
    }
    .cta-desc {
        font-size: 1rem;
        margin-bottom: 32px;
    }
    .cta-buttons {
        margin-bottom: 32px;
    }
    .cta-contact {
        gap: 16px;
    }
    .contact-icon {
        width: 44px;
        height: 44px;
    }

    .reviews-title {
        font-size: 1.5rem;
    }
    .reviews .reviews-header .section-title {
        font-size: 1.25rem;
        line-height: 1.35;
    }
    .reviews-desc {
        font-size: 0.9rem;
    }
    .card-t32a {
        min-width: 240px;
        max-width: 260px;
    }
    .card-t32a .t32a-block {
        height: 88px;
        min-height: 88px;
        padding: 10px 14px;
    }
    .card-t32a .t32a-course-name {
        font-size: 0.875rem;
    }
    .card-t32a .t32a-summary {
        font-size: 0.65rem;
    }
    .card-t32a .t32a-body {
        padding: 12px 14px 16px;
    }
    .card-t32a .t32a-review-text {
        font-size: 0.75rem;
    }
    .card-t32a .t32a-name {
        font-size: 0.75rem;
    }
    .card-t32a .t32a-dept {
        font-size: 0.65rem;
    }

    .modal-content {
        width: 100%;
        max-width: 100%;
        margin: 8px;
        padding: 24px 20px;
        max-height: calc(100vh - 16px);
    }
    .modal-title {
        font-size: 1.1rem;
    }
    .form-field {
        flex-direction: column;
        align-items: stretch;
        gap: 6px;
    }
    .field-label {
        min-width: 0;
    }
    .privacy-table {
        font-size: 0.7rem;
    }
    .privacy-table th,
    .privacy-table td {
        padding: 6px 8px;
    }
}

/* Scroll Animation */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 순차 애니메이션 (About 카드용) */
.about-card {
    opacity: 0;
    transform: translateY(60px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.about-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.about-card:nth-child(1).visible {
    transition-delay: 0.1s;
}

.about-card:nth-child(2).visible {
    transition-delay: 0.3s;
}

.about-card:nth-child(3).visible {
    transition-delay: 0.5s;
}

/* 다운로드 모달 */
.modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.3s ease;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.modal-content {
    background: white;
    padding: 48px 40px;
    border-radius: 16px;
    max-width: 650px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-close {
    position: absolute;
    right: 20px;
    top: 20px;
    background: none;
    border: none;
    font-size: 32px;
    color: #666;
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.3s ease;
    z-index: 10;
}

.modal-close:hover {
    color: #000;
}

.modal-header {
    margin-bottom: 20px;
}

.modal-title {
    font-family: var(--font-sans);
    font-size: 1.5rem;
    font-weight: 700;
    color: #000;
    margin-bottom: 16px;
    line-height: 1.3;
}

.modal-description {
    font-size: 0.95rem;
    color: #333;
    line-height: 1.6;
    margin-bottom: 12px;
}

.modal-info {
    font-size: 0.9rem;
    color: #666;
    line-height: 1.5;
}

.download-form {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.form-field {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 12px;
    padding: 6px 0;
    border-bottom: 1px solid #f0f0f0;
}

.form-field--inquiry,
.form-field.privacy-field {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    padding: 10px 0;
}

.field-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: #555;
    min-width: 120px;
    flex-shrink: 0;
}

.required {
    color: #d93025;
}

/* 스타일 전용: config(엔트리 ID)와 무관하게 .field-input / .field-textarea 로 통일 */
.download-form .field-input,
.download-form .field-textarea {
    flex: 1;
    width: 100%;
    padding: 6px 10px;
    border: none;
    border-bottom: 1px solid #dadce0;
    font-size: 0.9rem;
    transition: border-color 0.3s ease;
    background: transparent;
    font-family: var(--font-sans);
    box-sizing: border-box;
}

.download-form .field-textarea {
    resize: vertical;
    min-height: 72px;
}

.download-form .field-input::placeholder,
.download-form .field-textarea::placeholder {
    color: #aaa;
}

.download-form .field-input:focus,
.download-form .field-textarea:focus {
    outline: none;
    border-bottom: 2px solid #673ab7;
}

.form-actions {
    display: flex;
    justify-content: center;
    margin-top: 20px;
}

.btn-submit-primary {
    background: #1a73e8;
    color: white;
    padding: 14px 32px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
}

.btn-submit-primary:hover {
    background: #1557b0;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15), 0 2px 4px rgba(0, 0, 0, 0.12);
    transform: translateY(-1px);
}

.btn-submit-primary:active {
    transform: translateY(0);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
}

/* 반응형 */
@media (max-width: 768px) {
    .modal-content {
        padding: 32px 24px;
        max-width: 95%;
    }

    .btn-submit-primary {
        width: 100%;
        max-width: 95%;
    }

    .modal-title {
        font-size: 1.15rem;
    }
}



/* ===== A/B 탭 스타일 ===== */
.ab-tab-nav {
    display: flex !important;
    flex-direction: row !important;
    align-items: center;
    gap: 8px;
    margin: 48px auto 40px;
    width: fit-content;
    background: #f0f0f0;
    border-radius: 40px;
    padding: 4px;
    position: relative;
    left: 50%;
    transform: translateX(-50%);
}

.ab-tab-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    border: none;
    background: transparent;
    border-radius: 36px;
    cursor: pointer;
    font-family: var(--font-sans);
    transition: all 0.25s ease;
    color: #888;
}

.ab-tab-btn .ab-label {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: #ccc;
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    transition: background 0.25s ease;
}

.ab-tab-btn .ab-text {
    font-size: 14px;
    font-weight: 500;
}

.ab-tab-btn.active {
    background: #fff;
    color: #111;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.10);
}

.ab-tab-btn.active .ab-label {
    background: #111;
}

.ab-tab-panel {
    display: none;
}

.ab-tab-panel.active {
    display: block;
}

/* B안 플레이스홀더 */
.track-b-placeholder {
    min-height: 480px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px dashed #ddd;
    border-radius: 16px;
    margin: 0 0 80px;
}

.track-b-inner {
    text-align: center;
    color: #aaa;
}

.track-b-icon {
    font-size: 40px;
    margin-bottom: 16px;
    color: #ccc;
}

.track-b-inner h3 {
    font-size: 20px;
    font-weight: 600;
    color: #bbb;
    margin: 0 0 8px;
}

.track-b-inner p {
    font-size: 14px;
    color: #ccc;
}

/* ===== B탭 전용 스타일 ===== */
.track-b-wrap {
    /* overflow 사용 안 함 — 모바일에서는 개별 레벨 단위 스크롤 */
}

.track-b-timeline {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 32px;
    padding: 0 0 80px;
}

.track-b-mobile {
    display: none;
}

.track-b-desktop {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 32px;
    width: 100%;
    padding: 0 0 80px;
}

.track-b-item {
    width: 100%;
    max-width: 1000px;
}

/* 768px 초과: 반응형 축소 없이 가로 스크롤 */
@media (min-width: 769px) {
    .track-b-wrap {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        margin: 0 -24px;
        padding: 0 24px 80px;
    }
    .track-b-timeline {
        width: max-content;
        min-width: 100%;
    }
    .track-b-desktop {
        width: max-content;
        min-width: 100%;
    }
    .track-b-item {
        width: 1000px;
        min-width: 1000px;
        max-width: 1000px;
    }
}

/* 1024px 이하: 에센셜 트랙 개별 레벨 단위 가로 스크롤 (769~1024px에서부터 동일 동작) */
@media (max-width: 1024px) {
    .track-b-wrap {
        overflow-x: visible;
        margin: 0 -24px;
        padding: 0;
    }
    .track-b-timeline {
        width: 100%;
        padding: 0 0 60px;
        align-items: stretch;
    }
    .track-b-desktop {
        width: 100%;
        display: flex !important;
        flex-direction: column;
        align-items: stretch;
        gap: 24px;
    }
    .track-b-item {
        width: 100%;
        min-width: 0;
        max-width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        margin: 0;
        padding: 0;
    }
    .track-b-item .track-b-content {
        min-width: min(360px, 92vw);
        width: max-content;
        box-sizing: border-box;
    }
    .track-b-content {
        padding: 20px 18px;
    }
    .track-b-layout-d .track-b-content {
        grid-template-columns: 100px 1fr;
        gap: 0;
        padding: 18px 22px 20px;
        margin: 0 20px;
    }
    .track-b-layout-d .track-d-left {
        padding: 18px 12px;
    }
    .track-b-layout-d .track-d-left .track-d-step-lbl {
        font-size: 0.6rem;
    }
    .track-b-layout-d .track-d-left .track-d-num {
        font-size: 2.4rem;
    }
    .track-b-layout-d .track-d-left .track-d-grade {
        font-size: 0.82rem;
    }
    .track-b-layout-d .track-d-right {
        padding: 18px 20px;
    }
    .track-b-layout-d .track-d-right-head .track-d-badge {
        font-size: 0.68rem;
    }
    .track-b-layout-d .track-d-right-head .track-d-name {
        font-size: 1.05rem;
    }
    .track-b-layout-d .track-d-right .track-competency .competency-tag {
        font-size: 0.78rem;
        padding: 3px 10px;
    }
    .track-b-content .track-course-info strong {
        font-size: 1.15rem;
    }
    .track-b-content .track-course-info span {
        font-size: 0.78rem;
    }
    .track-b-content .track-course {
        padding: 16px 18px;
    }
    .track-b-content .track-course .track-course-type {
        font-size: 0.68rem;
        padding: 3px 9px;
    }
    .track-b-content .track-course-link {
        font-size: 0.75rem;
        padding: 5px 10px;
    }
    .track-header .section-label {
        font-size: 0.82rem;
    }
    .track-header .section-desc {
        font-size: 0.95rem;
    }
    .track-b-content .track-courses {
        grid-template-columns: repeat(2, 1fr);
        gap: 14px;
    }
    .track-b-content .track-courses .track-course {
        max-width: none;
    }
}

.track-b-content {
    background: #fff;
    border: 1px solid rgba(0, 102, 255, 0.12);
    border-radius: 20px;
    padding: 36px 40px;
    display: flex;
    flex-direction: column;
    gap: 28px;
}

/* 상단 헤더 영역 - 레벨/직급/역량 가로 배치 */
.track-b-content .track-header-section {
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    gap: 20px;
    flex-wrap: wrap;
}

.track-b-content .track-level-label {
    margin-bottom: 0;
}

.track-b-content .track-level-name {
    font-size: 1.3rem;
    font-weight: 400;
    color: #111;
    line-height: 1.4;
    white-space: nowrap;
}

.track-b-content .track-level-name strong {
    font-weight: 700;
}

.track-b-content .track-competency {
    display: flex;

    gap: 10px;
    margin-bottom: 0;
    padding: 0;

    margin-top: 4px;
}

/* 하단 과정 카드 - 가로 3열 */
.track-b-content .track-courses {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.track-b-content .track-courses .track-course {
    max-width: 280px;
 
}

.track-b-content .track-course {
    flex-direction: column;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0;
    padding: 24px 20px 28px 24px;
    border-radius: 14px;
    border: 2px solid rgba(0, 0, 0, 0.08);
    border-left-width: 4px;
    background: #fff;
    height: 100%;
    box-sizing: border-box;
    transition: all 0.25s ease;
}

/* AI+ 과정 - Cyan */
.track-b-content .track-course:has(.track-course-type.ai) {
    border-color: rgba(0, 170, 255, 0.35);
    border-left-color: #00aaff;
    background: rgba(0, 170, 255, 0.04);
    box-shadow: 0 2px 12px rgba(0, 170, 255, 0.07);
}

.track-b-content .track-course:has(.track-course-type.ai):hover {
    border-color: rgba(0, 170, 255, 0.6);
    border-left-color: #00aaff;
    background: rgba(0, 170, 255, 0.08);
    box-shadow: 0 6px 20px rgba(0, 170, 255, 0.14);
}

/* 역량 과정 - Purple */
.track-b-content .track-course:has(.track-course-type.competency) {
    border-color: rgba(143, 83, 204, 0.35);
    border-left-color: #8f53cc;
    background: rgba(143, 83, 204, 0.04);
    box-shadow: 0 2px 12px rgba(143, 83, 204, 0.07);
}

.track-b-content .track-course:has(.track-course-type.competency):hover {
    border-color: rgba(143, 83, 204, 0.6);
    border-left-color: #8f53cc;
    background: rgba(143, 83, 204, 0.08);
    box-shadow: 0 6px 20px rgba(143, 83, 204, 0.14);
}

/* 계층 과정 - Indigo */
.track-b-content .track-course:has(.track-course-type.leadership) {
    border-color: rgba(102, 126, 234, 0.35);
    border-left-color: #667eea;
    background: rgba(102, 126, 234, 0.04);
    box-shadow: 0 2px 12px rgba(102, 126, 234, 0.07);
}

.track-b-content .track-course:has(.track-course-type.leadership):hover {
    border-color: rgba(102, 126, 234, 0.6);
    border-left-color: #667eea;
    background: rgba(102, 126, 234, 0.08);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.14);
}

.track-b-content .track-course-info {
    flex: 0 0 auto;
    margin-bottom: 0;
}

.track-b-content .track-course-info strong {
    display: block;
    font-size: 1.48rem;
    font-weight: 400;
    margin-bottom: 6px;
    line-height: 1.1;
    word-break: keep-all;
    overflow-wrap: break-word;
    font-style: normal;
}

.track-b-content .track-course-info strong em {
    font-weight: 700;
    font-style: normal;
}

.track-b-content .track-course-info span {
    font-size: 0.78rem;
    color: #666;
    line-height: 1.44;
}

.track-b-content .track-course .track-course-type {
    margin-bottom: 12px;
}

.track-b-content .track-course-link {
    position: static;
    transform: none;
    margin-top: 24px;
    font-size: 0.78rem;
    padding: 6px 14px;
    background: #03193f;
    color: #ffffff;
    border: 1px solid #03193f;
    border-radius: 6px;
    font-weight: 600;
    transition: background 0.25s ease, border-color 0.25s ease;
    white-space: nowrap;
}

/* 역량 태그 — 레퍼런스(essential-track-variants) 스타일: 연한 회색 pill */
.track-b-content .competency-tag {
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.6875rem;
    font-weight: 600;
    background: #f0f2f5;
    color: #6b7280;
    border: 1px solid #e4e7ed;
}

.track-b-content .competency-tag::before {
    content: none;
}

.track-b-content .competency-tag:hover {
    background: #e4e7ed;
    border-color: #d1d5db;
    color: #4b5563;
}

.track-b-content .track-course:hover .track-course-link {
    background: #0066ff;
    border-color: #0066ff;
    color: #ffffff;
}

/* ===== D안 레이아웃: 2단 레벨 패널 (좌측 스텝+직급 / 우측 콘텐츠, 기존 색상 유지) ===== */
.track-b-layout-d .track-b-content {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 0;
    padding: 0;
    overflow: hidden;
    border-radius: 14px;
    min-height: 0;
}

.track-b-layout-d .track-d-left {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 30px 18px;
    gap: 7px;
    font-size: 110%;
}

.track-b-layout-d .track-d-left .track-d-step-lbl {
    font-size: 0.6875rem;   /* 10% up */
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: rgba(0, 0, 0, 0.35);
}

.track-b-layout-d .track-d-left .track-d-num {
    font-size: 3.025rem;    /* 10% up */
    font-weight: 900;
    line-height: 1;
    letter-spacing: -0.04em;
}

.track-b-layout-d .track-d-left .track-d-grade {
    font-size: 0.89375rem;  /* 10% up */
    font-weight: 700;
    color: #444;
    text-align: center;
}

/* 좌측 패널 배경·숫자 색상 — 기존 theme-blue / theme-purple */
.theme-blue.track-b-layout-d .track-d-left {
    background: rgba(0, 102, 255, 0.08);
}

.theme-blue.track-b-layout-d .track-d-num {
    color: #0066ff;
}

.theme-purple.track-b-layout-d .track-d-left {
    background: rgba(143, 83, 204, 0.08);
}

.theme-purple.track-b-layout-d .track-d-num {
    color: #8f53cc;
}

.track-b-layout-d .track-d-right {
    padding: 22px 24px;
    background: #fff;
    text-align: left;
}

.track-b-layout-d .track-d-right-head {
    display: flex;
    align-items: center;
    gap: 11px;
    margin-bottom: 16px;
    font-size: 115%;
}

.track-b-layout-d .track-d-right-head .track-d-badge {
    font-size: 0.71875rem;  /* 15% up */
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 3px 11px;
    border-radius: 4px;
    background: #f4f6f9;
    border: 1px solid #e4e7ed;
}

.theme-blue.track-b-layout-d .track-d-badge {
    color: #0066ff;
}

.theme-purple.track-b-layout-d .track-d-badge {
    color: #8f53cc;
}

.track-b-layout-d .track-d-right-head .track-d-name {
    font-size: 1.15rem;     /* 15% up */
    font-weight: 800;
    color: #111;
}

.track-b-layout-d .track-d-right .track-competency {
    margin-bottom: 14px;
    align-self: flex-start;
    margin-top: 0;
    justify-content: flex-start;
    font-size: 115%;
}

.track-b-layout-d .track-d-right .track-competency .competency-title {
    font-size: 0.978rem;    /* 15% up from 0.85rem */
}

.track-b-layout-d .track-d-right .track-competency .competency-tags {
    gap: 7px;
}

.track-b-layout-d .track-d-right .track-competency .competency-tag {
    font-size: 0.92rem;     /* 15% up from 0.8rem */
    padding: 4px 14px;
}

.track-b-content .competency-tags {
    gap: 6px;
    justify-content: flex-start;
}

.track-b-layout-d .track-d-right .track-courses {
    margin-top: 0;
}

/* ===== 개인정보 수집 동의 폼 ===== */
.privacy-field {
    margin-top: 8px;
}

.privacy-box {
    background: #f7f8fa;
    border: 1px solid #e0e4ea;
    border-radius: 10px;
    padding: 16px 18px;
    margin: 10px 0 12px;
}

.privacy-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.78rem;
    margin-bottom: 10px;
}

.privacy-table th {
    background: #eaecf1;
    color: #444;
    font-weight: 600;
    padding: 8px 10px;
    text-align: left;
    border: 1px solid #d8dce4;
}

.privacy-table td {
    padding: 8px 10px;
    border: 1px solid #d8dce4;
    color: #555;
    font-size: 0.77rem;
    line-height: 1.5;
}

.privacy-notice {
    font-size: 0.73rem;
    color: #888;
    line-height: 1.6;
    margin: 0;
}

.privacy-check-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 0.88rem;
    color: #222;
    font-weight: 500;
}

.privacy-check-label input[type="checkbox"] {
    width: 17px;
    height: 17px;
    accent-color: #0066ff;
    cursor: pointer;
    flex-shrink: 0;
}

.interest-checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 8px;
}

.interest-checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 0.88rem;
    color: #222;
    padding: 2px 0;
}

.interest-checkbox-label input[type="checkbox"] {
    width: 15px;
    height: 15px;
    accent-color: #0066ff;
    cursor: pointer;
    flex-shrink: 0;
}

.privacy-checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 0.88rem;
    color: #222;
    font-weight: 500;
    padding: 4px 0;
    margin-top: 8px;
}

.privacy-checkbox-label input[type="checkbox"] {
    width: 17px;
    height: 17px;
    accent-color: #0066ff;
    cursor: pointer;
    flex-shrink: 0;
}

.btn-submit-primary:disabled {
    background: #b0c4e8;
    color: #fff;
    cursor: not-allowed;
    opacity: 0.55;
    transform: none;
    box-shadow: none;
}

.download-form .form-status {
    font-size: 0.9rem;
    margin-right: 8px;
}

.download-form .form-status.success {
    color: #16a34a;
}

.download-form .form-status.error {
    color: #dc2626;
}

.download-form .form-actions {
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
}

/* B탭 Level 뱃지 원형 */
.track-b-content .track-badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: #03193f;
    color: #ffffff;
    font-size: 0.7rem;
    font-weight: 700;
    line-height: 1.3;
    text-align: center;
    letter-spacing: 0.02em;
    flex-shrink: 0;
    white-space: pre;
}

/* ===== 깔끔해진 Level 테마 시스템 (JS 클래스 기반) ===== */

/* 블루 테마 (홀수 레벨) */
.theme-blue .track-badge {
    background: #0066ff;
}

.theme-blue .track-course {
    border-color: rgba(0, 170, 255, 0.35);
    border-left-color: #00aaff;
    background: rgba(0, 170, 255, 0.04);
}

.theme-blue .track-course-type {
    background: #00aaff;
    color: #ffffff;
}

.theme-blue .track-course:hover {
    border-color: rgba(0, 170, 255, 0.6);
    background: rgba(0, 170, 255, 0.08);
}

/* 퍼플 테마 (짝수 레벨) */
.theme-purple .track-badge {
    background: #8f53cc;
}

.theme-purple .track-course {
    border-color: rgba(143, 83, 204, 0.35);
    border-left-color: #8f53cc;
    background: rgba(143, 83, 204, 0.04);
}

.theme-purple .track-course-type {
    background: #8f53cc;
    color: #ffffff;
}

.theme-purple .track-course:hover {
    border-color: rgba(143, 83, 204, 0.6);
    background: rgba(143, 83, 204, 0.08);
}

.theme-purple .track-course:hover .track-course-link {
    background: #8f53cc;
    border-color: #8f53cc;
}

.track-b-content .track-badge .badge-num {
    font-size: 1.4rem;
    font-weight: 800;
    line-height: 1;
}

.track-b-content .track-level-label {
    margin-bottom: 0;
}

/* ── 다운로드 로딩 오버레이 (모달 위) ── */
.download-loading-overlay {
    display: none;
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.93);
    border-radius: inherit;
    z-index: 20;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 20px;
}

.download-loading-overlay.active {
    display: flex;
}

.download-spinner {
    width: 52px;
    height: 52px;
    border: 5px solid #e0e7ff;
    border-top-color: #1a73e8;
    border-radius: 50%;
    animation: dlSpin 0.75s linear infinite;
}

@keyframes dlSpin {
    to {
        transform: rotate(360deg);
    }
}

.download-loading-text {
    font-size: 1rem;
    color: #444;
    font-weight: 500;
    text-align: center;
    line-height: 1.6;
}

/* ── 완료 토스트 ── */
.download-toast {
    position: fixed;
    bottom: 36px;
    left: 50%;
    transform: translateX(-50%) translateY(16px);
    background: #16a34a;
    color: #fff;
    padding: 14px 32px;
    border-radius: 10px;
    font-size: 0.95rem;
    font-weight: 600;
    z-index: 99999;
    opacity: 0;
    transition: opacity 0.3s ease, transform 0.3s ease;
    pointer-events: none;
    white-space: nowrap;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.18);
}

.download-toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* 테스트용 다운로드 패널 (env === 'test' 일 때만 표시) */
.download-test-section {
    position: fixed;
    bottom: 12px;
    right: 12px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: #f9fafb;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    z-index: 9998;
}
.download-test-section .btn-download-test,
.download-test-section .btn-download-test-hide {
    padding: 0.35rem 0.75rem;
    font-size: 0.875rem;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    background: #fff;
    cursor: pointer;
}
.download-test-section .btn-download-test:hover,
.download-test-section .btn-download-test-hide:hover {
    background: #f3f4f6;
}
.download-test-show-wrap {
    position: fixed;
    bottom: 12px;
    right: 12px;
    z-index: 9998;
}
.download-test-show-wrap .btn-download-test-show {
    padding: 0.35rem 0.75rem;
    font-size: 0.875rem;
    color: #6b7280;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    background: #f9fafb;
    cursor: pointer;
}
.download-test-show-wrap .btn-download-test-show:hover {
    color: #111;
    background: #f3f4f6;
}