/* ==========================================
   AI CITATIONS ARCHIVE — HUB PAGE
   포트폴리오·블로그 DNA 계승 + 영상 증거 아카이브
   3대 AI 엔진 컬러 코딩 + Featured/Latest 뱃지
   ========================================== */

/* ==========================================
   HERO SECTION
   ========================================== */
.aic-hero {
    position: relative;
    padding: 160px 0 80px;
    background: #ffffff;
    overflow: hidden;
}

.aic-hero__layout {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 48px;
}

.aic-hero__left {
    flex-shrink: 0;
    overflow: hidden;
}

.aic-hero__title {
    margin: 0;
    line-height: 0.9;
}

.aic-hero__title-line {
    display: block;
    font-family: 'Bebas Neue', sans-serif;
    font-size: clamp(80px, 15vw, 200px);
    font-weight: 400;
    color: #0f172a;
    letter-spacing: -0.02em;
    line-height: 0.85;
    -webkit-text-stroke: 2px #0f172a;
    animation: aicTitleSlideUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.aic-hero__title-line:nth-child(2) { animation-delay: 0.12s; }
.aic-hero__title-line:nth-child(3) { animation-delay: 0.24s; }

.aic-hero__title-line--accent {
    color: #2563eb;
    -webkit-text-stroke: 2px #2563eb;
}

@keyframes aicTitleSlideUp {
    from { opacity: 0; transform: translateY(60%); }
    to { opacity: 1; transform: translateY(0); }
}

.aic-hero__tagline {
    margin: 28px 0 0 0;
    padding: 16px 0 0 0;
    border-top: 2px solid #0f172a;
    font-size: clamp(18px, 2vw, 24px);
    font-weight: 600;
    color: #0f172a;
    letter-spacing: -0.02em;
    line-height: 1.4;
    animation: aicFadeIn 0.6s ease 0.6s both;
    max-width: 600px;
}

.aic-hero__tagline strong {
    color: #2563eb;
    font-weight: 700;
    position: relative;
    display: inline-block;
}

.aic-hero__tagline strong::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 2px;
    width: 100%;
    height: 8px;
    background: rgba(255, 188, 41, 0.45);
    z-index: -1;
}

.aic-hero__semantic-title {
    display: block;
    margin-top: 16px;
    font-size: 13px;
    font-weight: 500;
    color: #94a3b8;
    letter-spacing: 0.02em;
    line-height: 1.5;
}

.aic-hero__right {
    max-width: 340px;
    padding-bottom: 8px;
    animation: aicFadeIn 0.6s ease 0.5s both;
}

@keyframes aicFadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

.aic-hero__sub {
    display: flex;
    align-items: stretch;
    gap: 16px;
    margin-bottom: 20px;
}

.aic-hero__sub-line {
    width: 2px;
    background: #0f172a;
    flex-shrink: 0;
}

.aic-hero__agency {
    font-size: 13px;
    font-weight: 500;
    color: #475569;
    line-height: 1.6;
    letter-spacing: 0.02em;
    margin: 0;
    text-transform: uppercase;
}

.aic-hero__est {
    font-size: 12px;
    color: #94a3b8;
    letter-spacing: 0.05em;
    margin: 0 0 24px 0;
    text-transform: uppercase;
}

.aic-hero__desc {
    font-size: 14px;
    color: #64748b;
    line-height: 1.7;
    margin: 0 0 28px 0;
    padding-top: 20px;
    border-top: 1px solid #e2e8f0;
}

.aic-hero__counter {
    display: flex;
    align-items: center;
    gap: 20px;
    padding-top: 20px;
    border-top: 1px solid #e2e8f0;
}

.aic-hero__counter-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.aic-hero__counter-num {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 42px;
    font-weight: 400;
    color: #2563eb;
    line-height: 1;
    letter-spacing: -0.02em;
}

.aic-hero__counter-num--sm {
    font-size: 42px;
    color: #0f172a;
    font-variant-numeric: tabular-nums;
}

.aic-hero__counter-label {
    font-size: 10px;
    font-weight: 600;
    color: #94a3b8;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.aic-hero__counter-divider {
    width: 1px;
    height: 48px;
    background: #e2e8f0;
}


/* ==========================================
   DEFINITION BLOCK
   ========================================== */
.aic-definition {
    padding: 100px 0;
    background: #ffffff;
    border-top: 1px solid #e2e8f0;
}

.aic-definition__grid {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 64px;
    align-items: start;
}

.aic-definition__eyebrow-wrap {
    position: sticky;
    top: 120px;
}

.aic-definition__eyebrow {
    display: block;
    font-family: 'SF Mono', 'Monaco', 'Cascadia Code', monospace;
    font-size: 12px;
    font-weight: 600;
    color: #2563eb;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding-bottom: 16px;
    border-bottom: 2px solid #0f172a;
}

.aic-definition__eyebrow-note {
    font-size: 11px;
    color: #94a3b8;
    margin: 12px 0 0 0;
    letter-spacing: 0.02em;
}

.aic-definition__content {
    max-width: 720px;
}

.aic-def-item {
    padding: 32px 0;
    border-bottom: 1px solid #e2e8f0;
}

.aic-def-item:first-child { padding-top: 0; }
.aic-def-item:last-child { border-bottom: none; padding-bottom: 0; }

.aic-def-item--highlight {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.02) 0%, rgba(37, 99, 235, 0.06) 100%);
    border-left: 3px solid #2563eb;
    padding: 32px 28px;
    margin: 16px 0;
}

.aic-def-item__term {
    display: flex;
    align-items: baseline;
    gap: 14px;
    margin: 0 0 16px 0;
    flex-wrap: wrap;
}

.aic-def-item__key {
    font-family: 'Bebas Neue', sans-serif;
    font-size: clamp(26px, 3vw, 36px);
    font-weight: 400;
    color: #0f172a;
    letter-spacing: -0.01em;
    line-height: 1;
}

.aic-def-item--highlight .aic-def-item__key { color: #2563eb; }

.aic-def-item__trans {
    font-size: 14px;
    font-weight: 600;
    color: #64748b;
    padding: 4px 12px;
    border: 1px solid #e2e8f0;
    letter-spacing: 0.02em;
    line-height: 1;
    white-space: nowrap;
}

.aic-def-item--highlight .aic-def-item__trans {
    border-color: rgba(37, 99, 235, 0.3);
    color: #2563eb;
    background: #ffffff;
}

.aic-def-item__desc {
    font-size: 15px;
    color: #475569;
    line-height: 1.85;
    margin: 0;
}

.aic-def-item__desc strong { color: #0f172a; font-weight: 600; }

.aic-def-item__desc em {
    font-style: normal;
    font-weight: 600;
    color: #2563eb;
}


/* ==========================================
   INTRO SECTION
   ========================================== */
.aic-intro {
    padding: 100px 0;
    background: #f8fafc;
    border-top: 1px solid #e2e8f0;
    border-bottom: 1px solid #e2e8f0;
}

.aic-intro__grid {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 64px;
    align-items: start;
}

.aic-intro__eyebrow-wrap {
    position: sticky;
    top: 120px;
}

.aic-intro__eyebrow {
    display: block;
    font-family: 'SF Mono', 'Monaco', 'Cascadia Code', monospace;
    font-size: 12px;
    font-weight: 600;
    color: #2563eb;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding-bottom: 16px;
    border-bottom: 2px solid #0f172a;
}

.aic-intro__content {
    max-width: 720px;
}

.aic-intro__title {
    font-size: clamp(26px, 3.8vw, 40px);
    font-weight: 800;
    color: #0f172a;
    letter-spacing: -0.03em;
    line-height: 1.25;
    margin: 0 0 36px 0;
}

.aic-intro__title-accent {
    display: block;
    margin-top: 8px;
    color: #2563eb;
    font-size: 0.85em;
    font-weight: 700;
}

.aic-intro__body {
    font-size: 16px;
    color: #475569;
    line-height: 1.85;
    margin: 0 0 20px 0;
}

.aic-intro__body:last-child { margin-bottom: 0; }
.aic-intro__body strong { color: #0f172a; font-weight: 600; }


/* ==========================================
   METHODOLOGY SECTION
   ========================================== */
.aic-methodology {
    padding: 120px 0;
    background: #ffffff;
}

.aic-methodology__header {
    max-width: 720px;
    margin: 0 auto 64px;
    text-align: center;
}

.aic-methodology__eyebrow {
    display: block;
    font-family: 'SF Mono', 'Monaco', 'Cascadia Code', monospace;
    font-size: 12px;
    font-weight: 600;
    color: #2563eb;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.aic-methodology__title {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 800;
    color: #0f172a;
    letter-spacing: -0.03em;
    margin: 0 0 24px 0;
}

.aic-methodology__line {
    width: 60px;
    height: 3px;
    background: #2563eb;
    margin: 0 auto 24px;
}

.aic-methodology__sub {
    font-size: 15px;
    color: #64748b;
    line-height: 1.7;
    margin: 0;
}

.aic-methodology__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
    border-top: 2px solid #0f172a;
    border-bottom: 2px solid #0f172a;
}

.aic-method-item {
    padding: 40px 32px 40px 0;
    border-right: 1px solid #e2e8f0;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.aic-method-item.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.aic-method-item:nth-child(3n) { border-right: none; padding-right: 0; }
.aic-method-item:nth-child(n+4) { border-top: 1px solid #e2e8f0; }

.aic-method-item__num {
    display: block;
    font-family: 'SF Mono', 'Monaco', 'Cascadia Code', monospace;
    font-size: 13px;
    font-weight: 600;
    color: #2563eb;
    letter-spacing: 0.06em;
    margin-bottom: 16px;
}

.aic-method-item__title {
    font-size: 18px;
    font-weight: 700;
    color: #0f172a;
    letter-spacing: -0.015em;
    margin: 0 0 12px 0;
    line-height: 1.35;
}

.aic-method-item__desc {
    font-size: 14px;
    color: #64748b;
    line-height: 1.7;
    margin: 0;
}


/* ==========================================
   CASES SECTION HEADER
   ========================================== */
.aic-cases-section {
    padding: 100px 0 120px;
    background: #f8fafc;
}

.aic-cases-header {
    margin-bottom: 48px;
}

.aic-cases__eyebrow {
    display: block;
    font-family: 'SF Mono', 'Monaco', 'Cascadia Code', monospace;
    font-size: 12px;
    font-weight: 600;
    color: #2563eb;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.aic-cases__title {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 800;
    color: #0f172a;
    letter-spacing: -0.03em;
    margin: 0 0 16px 0;
}

.aic-cases__line {
    width: 100%;
    height: 2px;
    background: #0f172a;
    margin-bottom: 12px;
    transform-origin: left;
    transform: scaleX(0);
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.aic-cases-header.is-visible .aic-cases__line {
    transform: scaleX(1);
}

.aic-cases__count {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: #64748b;
    letter-spacing: 0.02em;
}

.aic-cases__count span {
    font-weight: 700;
    color: #2563eb;
    font-size: 14px;
}


/* ==========================================
   CASES GRID — 2x2 카드 + 호버 영상 재생
   ========================================== */
.aic-cases-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.aic-case-card {
    position: relative;
    display: flex;
    flex-direction: column;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    text-decoration: none;
    color: inherit;
    overflow: hidden;
    transition: border-color 0.3s ease, transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s ease;
    opacity: 0;
    transform: translateY(24px);
}

.aic-case-card.is-visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.3s ease, box-shadow 0.3s ease;
}

.aic-case-card:hover {
    border-color: #2563eb;
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(15, 23, 42, 0.12);
}


/* MEDIA */
.aic-case-card__media {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 10;
    background: #0f172a;
    overflow: hidden;
}

.aic-case-card__video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s ease;
}

.aic-case-card:hover .aic-case-card__video {
    transform: scale(1.02);
}

.aic-case-card__number {
    position: absolute;
    top: 16px;
    left: 16px;
    z-index: 3;
    font-family: 'Bebas Neue', sans-serif;
    font-size: 28px;
    font-weight: 400;
    color: #ffffff;
    letter-spacing: -0.01em;
    line-height: 1;
    background: rgba(15, 23, 42, 0.55);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    padding: 6px 12px 4px;
    border: 1px solid rgba(255, 255, 255, 0.15);
}

/* Featured 뱃지 - Google AI Mode 최강 증거 */
.aic-case-card__featured-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    z-index: 3;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 5px 10px;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #0f172a;
    background: #fef3c7;
    border: 1px solid #fcd34d;
}

.aic-case-card__featured-badge svg {
    color: #92400e;
}

/* Latest 뱃지 - 최신 검증 (Gemini) */
.aic-case-card__latest-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    z-index: 3;
    padding: 5px 10px;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #ffffff;
    background: #10b981;
    border: 1px solid #10b981;
}

/* Play Indicator */
.aic-case-card__play-indicator {
    position: absolute;
    bottom: 16px;
    right: 16px;
    z-index: 3;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: #ffffff;
    background: rgba(15, 23, 42, 0.65);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    transition: opacity 0.25s ease, transform 0.25s ease;
}

.aic-case-card.is-playing .aic-case-card__play-indicator {
    opacity: 0;
    transform: translateY(4px);
    pointer-events: none;
}

.aic-case-card__play-indicator svg {
    color: #2563eb;
}


/* BODY */
.aic-case-card__body {
    padding: 24px 24px 28px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    flex: 1;
}

.aic-case-card__tags {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.aic-case-card__tag {
    font-size: 11px;
    font-weight: 600;
    padding: 4px 10px;
    border: 1px solid #e2e8f0;
    letter-spacing: 0.02em;
    white-space: nowrap;
    background: #ffffff;
}

/* AI 엔진별 컬러 코딩 */
.aic-case-card__tag--engine {
    font-weight: 700;
}

.aic-case-card__tag--chatgpt {
    color: #10a37f;
    border-color: rgba(16, 163, 127, 0.3);
    background: rgba(16, 163, 127, 0.06);
}

.aic-case-card__tag--google {
    color: #4285f4;
    border-color: rgba(66, 133, 244, 0.3);
    background: rgba(66, 133, 244, 0.06);
}

.aic-case-card__tag--gemini {
    color: #8e6fe8;
    border-color: rgba(142, 111, 232, 0.35);
    background: linear-gradient(135deg, rgba(142, 111, 232, 0.08) 0%, rgba(66, 133, 244, 0.06) 100%);
}

.aic-case-card__tag--date {
    color: #64748b;
    font-family: 'SF Mono', 'Monaco', monospace;
    font-variant-numeric: tabular-nums;
}

.aic-case-card__tag--rank {
    color: #92400e;
    background: #fef3c7;
    border-color: #fcd34d;
    font-weight: 700;
}

.aic-case-card__tag--brand {
    color: #ffffff;
    background: #0f172a;
    border-color: #0f172a;
    font-weight: 700;
}


.aic-case-card__name {
    font-size: clamp(20px, 2vw, 24px);
    font-weight: 800;
    color: #0f172a;
    letter-spacing: -0.02em;
    line-height: 1.25;
    margin: 0;
    transition: color 0.3s ease;
}

.aic-case-card:hover .aic-case-card__name {
    color: #2563eb;
}

.aic-case-card__meta {
    font-size: 13px;
    color: #64748b;
    line-height: 1.6;
    margin: 0;
    letter-spacing: 0.01em;
}

.aic-case-card__meta strong {
    color: #0f172a;
    font-weight: 700;
}


/* QUERY 블록 */
.aic-case-card__query {
    position: relative;
    margin: 0;
    padding: 14px 16px 14px 18px;
    background: #f8fafc;
    border-left: 2px solid #2563eb;
    border-radius: 0 3px 3px 0;
}

.aic-case-card__query-label {
    display: inline-block;
    font-family: 'SF Mono', 'Monaco', 'Cascadia Code', monospace;
    font-size: 9px;
    font-weight: 700;
    color: #2563eb;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 6px;
}

.aic-case-card__query-text {
    font-family: 'SF Mono', 'Monaco', 'Cascadia Code', monospace;
    font-size: 12.5px;
    color: #334155;
    line-height: 1.6;
    margin: 0;
    letter-spacing: -0.005em;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}


.aic-case-card__foot {
    margin-top: auto;
    padding-top: 14px;
    border-top: 1px solid #f1f5f9;
}

.aic-case-card__cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 600;
    color: #2563eb;
    letter-spacing: 0.02em;
    transition: gap 0.3s ease;
}

.aic-case-card:hover .aic-case-card__cta { gap: 10px; }

.aic-case-card__cta svg {
    transition: transform 0.3s ease;
}

.aic-case-card:hover .aic-case-card__cta svg {
    transform: translateX(2px);
}


/* ==========================================
   OUTRO
   ========================================== */
.aic-outro {
    margin-top: 80px;
    padding: 56px 0;
    text-align: center;
    border-top: 2px solid #0f172a;
}

.aic-outro__hook {
    font-family: 'Bebas Neue', sans-serif;
    font-size: clamp(28px, 4vw, 48px);
    font-weight: 400;
    color: #0f172a;
    letter-spacing: -0.01em;
    line-height: 1.1;
    margin: 0 0 24px 0;
    position: relative;
    display: inline-block;
}

.aic-outro__hook::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: -12px;
    transform: translateX(-50%);
    width: 48px;
    height: 3px;
    background: #2563eb;
}

.aic-outro__text {
    font-size: clamp(15px, 1.5vw, 18px);
    font-weight: 500;
    color: #475569;
    line-height: 1.85;
    margin: 32px auto 0;
    letter-spacing: -0.01em;
    max-width: 640px;
}

.aic-outro__text strong {
    font-weight: 700;
    color: #0f172a;
    position: relative;
    display: inline-block;
}

.aic-outro__text strong::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 2px;
    width: 100%;
    height: 8px;
    background: rgba(255, 188, 41, 0.35);
    z-index: -1;
}


/* ==========================================
   CTA SECTION
   ========================================== */
.aic-cta-section {
    padding: 120px 0;
    background: #0f172a;
    position: relative;
    overflow: hidden;
}

.aic-cta-section::before {
    content: '';
    position: absolute;
    top: -20%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.12) 0%, transparent 70%);
    pointer-events: none;
}

.aic-cta__content {
    position: relative;
    z-index: 1;
    max-width: 720px;
}

.aic-cta__eyebrow {
    display: block;
    font-family: 'SF Mono', 'Monaco', 'Cascadia Code', monospace;
    font-size: 12px;
    font-weight: 600;
    color: rgba(37, 99, 235, 0.9);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 20px;
}

.aic-cta__title {
    font-size: clamp(32px, 4.5vw, 52px);
    font-weight: 800;
    color: #ffffff;
    letter-spacing: -0.03em;
    line-height: 1.2;
    margin: 0 0 24px 0;
}

.aic-cta__title-accent {
    color: #2563eb;
}

.aic-cta__desc {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.8;
    margin: 0 0 40px 0;
}

.aic-cta__buttons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.aic-cta__btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 32px;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.02em;
    text-decoration: none;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.aic-cta__btn--primary {
    background: #2563eb;
    color: #ffffff;
    border: 1.5px solid #2563eb;
}

.aic-cta__btn--primary:hover {
    background: #1d4ed8;
    border-color: #1d4ed8;
}

.aic-cta__btn--primary svg {
    transition: transform 0.3s ease;
}

.aic-cta__btn--primary:hover svg {
    transform: translateX(4px);
}

.aic-cta__btn--outline {
    background: transparent;
    color: #ffffff;
    border: 1.5px solid rgba(255, 255, 255, 0.25);
}

.aic-cta__btn--outline:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.5);
}


.aic-cta__related {
    margin-top: 64px;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.aic-cta__related-label {
    display: block;
    font-family: 'SF Mono', 'Monaco', 'Cascadia Code', monospace;
    font-size: 10px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.35);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 4px;
}

.aic-cta__related-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.65);
    text-decoration: none;
    letter-spacing: -0.005em;
    line-height: 1.5;
    transition: color 0.2s ease, gap 0.3s ease;
    width: fit-content;
}

.aic-cta__related-link:hover {
    color: #ffffff;
    gap: 12px;
}

.aic-cta__related-link svg {
    color: #2563eb;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.aic-cta__related-link:hover svg {
    transform: translate(2px, -2px);
}


/* ==========================================
   SCROLL REVEAL
   ========================================== */
.scroll-reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.scroll-reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}


/* ==========================================
   RESPONSIVE
   ========================================== */

@media (max-width: 1024px) {
    .aic-methodology__grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .aic-method-item:nth-child(2n) { border-right: none; padding-right: 0; }
    .aic-method-item:nth-child(2n+1) { border-right: 1px solid #e2e8f0; padding-right: 32px; }
    .aic-method-item:nth-child(n+3) { border-top: 1px solid #e2e8f0; }

    .aic-intro__grid,
    .aic-definition__grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .aic-intro__eyebrow-wrap,
    .aic-definition__eyebrow-wrap {
        position: static;
    }

    .aic-cases-grid {
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .aic-hero { padding: 120px 0 60px; }
    .aic-hero__layout {
        flex-direction: column;
        align-items: flex-start;
        gap: 32px;
    }
    .aic-hero__title-line { font-size: clamp(56px, 16vw, 80px); }
    .aic-hero__tagline { font-size: 16px; }
    .aic-hero__right { max-width: 100%; }
    .aic-hero__desc { font-size: 13px; }
    .aic-hero__desc br { display: none; }
    .aic-hero__counter-num,
    .aic-hero__counter-num--sm { font-size: 36px; }

    .aic-definition { padding: 70px 0; }
    .aic-def-item { padding: 24px 0; }
    .aic-def-item--highlight { padding: 24px 20px; }
    .aic-def-item__desc { font-size: 14px; }

    .aic-intro { padding: 80px 0; }
    .aic-intro__body { font-size: 15px; }

    .aic-methodology { padding: 80px 0; }
    .aic-methodology__grid { grid-template-columns: 1fr; }
    .aic-method-item {
        padding: 32px 0;
        border-right: none !important;
        padding-right: 0 !important;
        border-top: 1px solid #e2e8f0;
    }
    .aic-method-item:first-child { border-top: none; }

    .aic-cases-section { padding: 80px 0; }
    .aic-cases-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .aic-case-card__media { aspect-ratio: 16 / 9; }
    .aic-case-card__number {
        font-size: 24px;
        padding: 5px 10px 3px;
    }
    .aic-case-card__body { padding: 20px 20px 24px; }
    .aic-case-card__tag {
        font-size: 10px;
        padding: 4px 9px;
    }
    .aic-case-card__name { font-size: 20px; }
    .aic-case-card__play-indicator {
        font-size: 10px;
        padding: 6px 10px;
    }
    .aic-case-card__query { padding: 12px 14px 12px 16px; }
    .aic-case-card__query-text { font-size: 12px; }
    .aic-case-card:hover {
        transform: none;
        box-shadow: none;
    }

    .aic-outro {
        margin-top: 60px;
        padding: 40px 0;
    }
    .aic-outro__text { font-size: 14px; }
    .aic-outro__text br { display: none; }

    .aic-cta-section { padding: 80px 0; }
    .aic-cta__buttons { flex-direction: column; }
    .aic-cta__btn {
        width: 100%;
        justify-content: center;
    }
    .aic-cta__related { margin-top: 48px; }
}

@media (max-width: 480px) {
    .aic-hero__title-line { font-size: 56px; }
    .aic-cta__title { font-size: 28px; }
    .aic-outro__hook { font-size: 28px; }

    .aic-def-item__term { gap: 10px; }
    .aic-def-item__key { font-size: 26px; }
    .aic-def-item__trans {
        font-size: 12px;
        padding: 3px 10px;
    }

    .aic-case-card__body { padding: 16px 16px 20px; }
    .aic-case-card__name { font-size: 18px; }
}


/* ==========================================
   접근성 — reduced-motion
   ========================================== */
@media (prefers-reduced-motion: reduce) {
    .aic-case-card__video { display: none; }
    .aic-case-card__media {
        background-image: var(--poster);
        background-size: cover;
        background-position: center;
    }
    .aic-case-card:hover { transform: none; }
    .aic-case-card:hover .aic-case-card__video { transform: none; }
}