/*-----------------------------------*\
  #UF5 Homepage - Minimal Design
  #ysjeon | 2025-01-19 | UI 고도화
\*-----------------------------------*/

/*-----------------------------------*\
  #FONTS
\*-----------------------------------*/

/* ysjeon | 2026-03-22 | @import 제거 → HTML에서 비동기 로드로 렌더 차단 해소 */

/* 로컬 폰트 Fallback (폰트 파일이 있는 경우) */
@font-face {
  font-family: 'Pretendard';
  font-weight: 400;
  font-style: normal;
  src: url('../fonts/Pretendard-Regular.woff2') format('woff2');
  font-display: swap;
}

@font-face {
  font-family: 'Pretendard';
  font-weight: 500;
  font-style: normal;
  src: url('../fonts/Pretendard-Medium.woff2') format('woff2');
  font-display: swap;
}

@font-face {
  font-family: 'Pretendard';
  font-weight: 600;
  font-style: normal;
  src: url('../fonts/Pretendard-SemiBold.woff2') format('woff2');
  font-display: swap;
}

/*-----------------------------------*\
  #CUSTOM PROPERTY
\*-----------------------------------*/

:root {
  /* Colors - Monochrome */
  --color-black: #000000;
  --color-white: #ffffff;
  --color-gray-50: #fafafa;
  --color-gray-100: #f5f5f5;
  --color-gray-200: #e5e5e5;
  --color-gray-300: #d4d4d4;
  --color-gray-400: #a3a3a3;
  --color-gray-500: #737373;
  --color-gray-600: #525252;
  --color-gray-700: #404040;
  --color-gray-800: #262626;
  --color-gray-900: #171717;
  --color-accent: #4f46e5;
  --color-accent-hover: #4338ca;
  --color-business-accent: #4f46e5;

  /* Typography */
  --font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans KR', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  --font-family-en: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  
  /* Font Sizes */
  --fs-hero-title: clamp(2.5rem, 5vw, 5rem); /* 40px - 80px */
  --fs-hero-subtitle: clamp(1rem, 2vw, 1.5rem); /* 16px - 24px */
  --fs-section-title: clamp(1.75rem, 3vw, 3rem); /* 28px - 48px */
  --fs-body-large: clamp(1rem, 1.5vw, 1.25rem); /* 16px - 20px */
  --fs-body: 1rem; /* 16px */
  --fs-body-small: 0.875rem; /* 14px */
  --fs-caption: 0.75rem; /* 12px */

  /* Font Weights */
  --fw-light: 300;
  --fw-regular: 400;
  --fw-medium: 500;
  --fw-semibold: 600;

  /* Spacing */
  --spacing-xs: 0.5rem; /* 8px */
  --spacing-sm: 1rem; /* 16px */
  --spacing-md: 1.5rem; /* 24px */
  --spacing-lg: 2rem; /* 32px */
  --spacing-xl: 3rem; /* 48px */
  --spacing-2xl: 4rem; /* 64px */
  --spacing-3xl: 6rem; /* 96px */
  --spacing-4xl: 8rem; /* 128px */

  /* Container */
  --container-max-width: 1200px;
  --container-padding: clamp(1rem, 4vw, 2.5rem); /* 16px - 40px */

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);

  /* Border */
  --border-width: 1px;
  --border-color: var(--color-gray-200);
  --border-radius: 0;
}

/*-----------------------------------*\
  #UTILITY
\*-----------------------------------*/

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/*-----------------------------------*\
  #RESET
\*-----------------------------------*/

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* ysjeon | 2026-02-22 | 스크롤 스냅 제거 - 한 번 스크롤 시 자동 휙 넘어가는 현상 방지 */
html {
  font-family: var(--font-family);
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
  scroll-padding-top: 0;
}

body {
  background-color: var(--color-white);
  color: var(--color-black);
  line-height: 1.6;
  overflow-x: hidden;
}

[data-lang="en"] {
  font-family: var(--font-family-en);
}

a {
  text-decoration: none;
  color: inherit;
  transition: opacity var(--transition-fast);
}

a:hover {
  opacity: 0.7;
}

img,
video {
  max-width: 100%;
  height: auto;
  display: block;
}

button {
  font: inherit;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

ul {
  list-style: none;
}

::selection {
  background-color: var(--color-black);
  color: var(--color-white);
}

/*-----------------------------------*\
  #LAYOUT
\*-----------------------------------*/

main {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.main-content {
  flex: 1;
  width: 100%;
}

/*-----------------------------------*\
  #HEADER / NAVIGATION
\*-----------------------------------*/

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: var(--border-width) solid rgba(255, 255, 255, 0.15);
}

/* 상단바 세로 길이: --navbar-padding-y, .navbar-logo img height, .navbar-link padding */
.navbar {
  --navbar-padding-y: 10px;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: var(--navbar-padding-y) var(--container-padding);
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: var(--spacing-lg);
  align-items: center;
}

.navbar-logo {
  display: flex;
  align-items: center;
}

.navbar-logo a {
  display: flex;
  align-items: center;
  transition: opacity var(--transition-fast);
}

.navbar-logo a:hover {
  opacity: 0.7;
}

.navbar-logo img {
  height: 40px;
  width: auto;
  display: block;
  object-fit: contain;
}

.navbar-list {
  display: flex;
  gap: var(--spacing-xl);
  align-items: center;
  justify-content: center;
}

.navbar-link {
  /* font-size: var(--fs-body); */
  font-size: 0.9rem;
  font-weight: var(--fw-regular);
  color: #ffffff;
  padding: var(--spacing-xs) 0;
  position: relative;
  transition: opacity var(--transition-fast);
  text-decoration: none;
}

.navbar-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: #ffffff;
  transition: width var(--transition-base);
}

.navbar-link:hover {
  opacity: 0.7;
}

.navbar-link:hover::after {
  width: 100%;
}

.navbar-link:active {
  opacity: 0.5;
}

.navbar-link.active {
  font-weight: var(--fw-medium);
}

.navbar-link.active::after {
  width: 100%;
}

.lang-toggle {
  font-size: var(--fs-body-small);
  color: rgba(255, 255, 255, 0.8);
  padding: var(--spacing-xs) var(--spacing-sm);
  transition: color var(--transition-fast);
}

.lang-toggle:hover {
  color: #ffffff;
}

/* ysjeon | 2026-02-15 | 리뉴얼: 문의하기 버튼 (기존 lang-toggle 위치) */
.navbar-contact {
  font-size: var(--fs-body-small);
  color: rgba(255, 255, 255, 0.8);
  padding: var(--spacing-xs) var(--spacing-sm);
  transition: color var(--transition-fast);
  text-decoration: none;
}
.navbar-contact:hover {
  color: #ffffff;
}

/* ysjeon | 2025-02-06 | 드롭다운 / 메가 메뉴 */
.navbar-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  color: #ffffff;
  font-size: 1.5rem;
}

.navbar-menu-wrap {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  align-items: center;
  width: 100%;
  max-width: 560px;
  margin: 0 auto;
  padding-bottom: var(--navbar-padding-y);
}

/* 120% 갭을 채우는 투명 브릿지 - 마우스 이동 시 hover 유지 */
.navbar-menu-wrap::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  height: 20%;
  pointer-events: auto;
}

/* 상단 네비: 4개 동일 간격, 가운데 정렬 */
.navbar-list {
  display: contents;
}

.navbar-list > .navbar-item {
  display: flex;
  justify-content: center;
  align-items: center;
  padding-top: 5px;
}

.navbar-item.has-dropdown {
  position: relative;
}

.navbar-link--trigger {
  cursor: pointer;
  display: inline-flex;
  align-items: center;
}

/* 데스크톱: 개별 드롭다운 숨김, 메가 메뉴만 사용 */
.navbar-dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(var(--spacing-xs));
  min-width: 180px;
  padding: var(--spacing-xs) 0;
  background-color: rgba(0, 0, 0, 0.95);
  border: 1px solid rgba(255, 255, 255, 0.15);
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), visibility var(--transition-fast), transform var(--transition-fast);
  z-index: 50;
}

@media (min-width: 993px) {
  .navbar-item.has-dropdown .navbar-dropdown {
    display: none !important;
  }
}

/* 메가 메뉴: top 120%로 상단바 하단과 시각적 정렬, wrap::after가 갭의 hover 처리 */
.navbar-megadropdown {
  position: absolute;
  top: 120%;
  left: 0;
  right: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding-top: 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity 350ms ease-out, visibility 350ms ease-out, transform 350ms ease-out;
  z-index: 50;
  pointer-events: none;
  box-sizing: border-box;
}

.navbar-menu-wrap:hover .navbar-megadropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

.navbar-megadropdown-inner {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: var(--spacing-lg) 0;
  background-color: rgba(0, 0, 0, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-top: none;
  border-radius: 0 0 12px 12px;
  align-items: start;
}

.navbar-megadropdown-column {
  padding: 0 var(--spacing-sm);
  text-align: center;
  min-width: 0;
}

.navbar-megadropdown-title {
  display: none;
}

.navbar-megadropdown-column .navbar-dropdown-link {
  display: block;
  padding: var(--spacing-xs) 0;
  /* font-size: var(--fs-body); */
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.9);
  white-space: normal;
  text-align: center;
  transition: color var(--transition-fast);
}

.navbar-megadropdown-column .navbar-dropdown-link:hover {
  color: #ffffff;
  background-color: transparent;
  opacity: 1;
}

.navbar-megadropdown-column .navbar-dropdown-link.active {
  color: #ffffff;
  font-weight: var(--fw-medium);
  background-color: transparent;
}

.navbar-dropdown li {
  margin: 0;
}

.navbar-dropdown-link {
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--fs-body-small);
  color: rgba(255, 255, 255, 0.9);
  white-space: nowrap;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.navbar-dropdown-link:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  opacity: 1;
}

.navbar-dropdown-link.active {
  background-color: rgba(255, 255, 255, 0.15);
  color: #ffffff;
  font-weight: var(--fw-medium);
}

/* ysjeon | 2026-02-22 | 모바일에서도 가로형 헤더 유지 (메가메뉴는 비표시, 개별 드롭다운 사용) */
@media (max-width: 992px) {

  .site-header {
    margin: 0;
  }

  .navbar {
    grid-template-columns: auto 1fr auto;
    --navbar-padding-y: 8px;
    gap: var(--spacing-sm);
    max-width: none;
    width: 100%;
    padding: var(--navbar-padding-y) var(--spacing-sm);
  }

  .navbar-megadropdown {
    display: none !important;
  }

  .navbar-item.has-dropdown .navbar-dropdown {
    display: block !important;
  }

  .navbar-menu-wrap {
    display: flex;
    width: 100%;
    max-width: none;
    grid-template-columns: unset;
    justify-content: center;
    align-items: center;
    padding-bottom: var(--navbar-padding-y);
  }

  .navbar-list {
    display: flex;
    position: relative;
    width: auto;
    max-width: 100%;
    height: auto;
    background-color: transparent;
    flex-direction: row;
    justify-content: center;
    padding: 0;
    gap: 1rem;
    transform: none;
    overflow-y: visible;
    box-shadow: none;
  }

  .navbar-list.is-open {
    transform: none;
  }

  .navbar-toggle {
    display: none;
  }

  .navbar-item {
    width: auto;
    border-bottom: none;
  }

  .navbar-link,
  .navbar-link--trigger {
    display: inline-flex;
    padding: var(--spacing-xs) 0;
    width: auto;
    font-size: clamp(0.75rem, 2vw, 0.9rem);
  }

  .navbar-dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(var(--spacing-xs));
    min-width: 140px;
    max-height: 70vh;
    padding: 0;
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    background-color: rgba(0, 0, 0, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 4px;
    margin: 0;
    transition: opacity var(--transition-fast), visibility var(--transition-fast);
  }

  .navbar-item.has-dropdown.is-open .navbar-dropdown {
    opacity: 1;
    visibility: visible;
    padding: var(--spacing-xs) 0;
  }

  .navbar-dropdown-link {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.8rem;
  }

  .navbar-logo img {
    height: 32px;
  }

  .navbar-contact {
    font-size: 0.8rem;
    padding: var(--spacing-xs) var(--spacing-xs);
  }

  /* ysjeon | 영상 width 풀, 네비와 여백 없음 (.section보다 우선) */
  .section.hero-section {
    margin-top: 0 !important;
    margin-bottom: 0 !important;
    margin-left: calc(50% - 50vw) !important;
    margin-right: calc(50% - 50vw) !important;
    padding: 0 !important;
    width: 100vw;
    max-width: 100vw;
    box-sizing: border-box;
  }

  .hero-video-fullscreen {
    width: 100%;
    margin: 0;
  }

  .hero-video-fullscreen video {
    width: 100%;
  }
}

/* ysjeon | 2026-02-22 | 가로형 헤더 유지, 여백만 축소 */
@media (max-width: 768px) {
  .section.hero-section {
    margin-top: 0 !important;
    margin-bottom: 0 !important;
    margin-left: calc(50% - 50vw) !important;
    margin-right: calc(50% - 50vw) !important;
    padding: 0 !important;
    width: 100vw;
    max-width: 100vw;
    box-sizing: border-box;
  }

  .hero-video-fullscreen {
    width: 100%;
    margin: 0;
  }

  .navbar {
    grid-template-columns: auto 1fr auto;
    --navbar-padding-y: 6px;
    gap: var(--spacing-xs);
  }

  .navbar-list {
    gap: clamp(0.35rem, 1.5vw, var(--spacing-sm));
  }

  .navbar-logo img {
    height: 28px;
  }

  .navbar-link,
  .navbar-link--trigger {
    font-size: clamp(0.7rem, 1.8vw, 0.85rem);
  }

  .navbar-contact {
    font-size: 0.75rem;
  }
}

/*-----------------------------------*\
  #HERO SECTION
\*-----------------------------------*/

.hero-section {
  min-height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: linear-gradient(to right, #f8f8fd 0%, #e8e8f5 50%, #e6e6fa 100%);
}

.hero-video-fullscreen {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 95%; /* 100% - 5% - 5% = 90% (상하 5%씩 잘린 만큼 줄임) */
  z-index: 0;
  overflow: hidden;
}

.hero-video-fullscreen video {
  width: 100%;
  height: 111.11%; /* 100 / 0.90 = 111.11% (원래 크기로 복원) */
  object-fit: cover;
  object-position: center;
  transform: translateY(-5%); /* 상단으로 이동하여 상단 5% 잘림 효과 */
}

@media (max-width: 768px) {
  .hero-section {
    min-height: auto;
    height: auto;
  }

  .hero-video-fullscreen {
    position: relative;
    width: 100%;
    overflow: hidden;
    height: auto; /* 영상 크기에 맞춰 자동 조정 */
  }

  .hero-video-fullscreen video {
    position: relative; /* absolute에서 relative로 변경하여 높이에 영향 */
    width: 100%;
    height: auto; /* 영상 비율 유지 */
    object-fit: contain; /* 모바일에서는 전체 너비가 보이도록 contain 사용 */
    object-position: center top; /* 상단 정렬 */
    display: block;
    clip-path: inset(5% 0); /* 상하 5%씩 자르기 */
  }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: var(--container-max-width);
  width: 100%;
  padding: var(--spacing-4xl) var(--container-padding);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.hero-text {
  max-width: 800px;
  background-color: rgba(255, 255, 255, 0.9);
  padding: var(--spacing-2xl);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.hero-title {
  font-size: var(--fs-hero-title);
  font-weight: var(--fw-medium);
  line-height: 1.1;
  margin-bottom: var(--spacing-lg);
  color: var(--color-black);
  letter-spacing: -0.03em;
  animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-subtitle {
  font-size: var(--fs-hero-subtitle);
  font-weight: var(--fw-regular);
  line-height: 1.6;
  color: var(--color-gray-600);
  max-width: 600px;
  margin: 0 auto;
  animation: fadeInUp 0.8s ease-out 0.4s both;
}

/* ysjeon | 2026-02-22 | 회사소개 페이지 상단 히어로 (bigxdata/intro 스타일) */
/* ysjeon | 2026-02-23 | 섹션은 가운데, 텍스트는 좌측 정렬 */
.about-hero {
  position: relative;
  min-height: 42vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: left;
  background-image: linear-gradient(135deg, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.4) 100%),
    url("https://images.unsplash.com/photo-1454165804606-c3d57bc86b40?w=1600&q=80");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: var(--color-white);
  padding: var(--spacing-4xl) var(--container-padding);
}
.about-hero--noimg {
  background-image: linear-gradient(135deg, #2d3748 0%, #1a202c 100%);
}
/* ysjeon | 솔루션 페이지 전용 히어로 배경 */
.solution-hero {
  background-image: linear-gradient(135deg, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.4) 100%),
    url("https://images.unsplash.com/photo-1460925895917-afdab827c52f?w=1600&q=80");
}
.about-hero-inner {
  position: relative;
  z-index: 1;
  max-width: 900px;
  width: 100%;
}
/* ysjeon | 2026-02-23 | 타이틀 크기 축소 */
.about-hero-title {
  font-size: clamp(1.775rem, 3vw, 2.25rem);
  font-weight: var(--fw-medium);
  line-height: 1.25;
  margin-bottom: var(--spacing-md);
  letter-spacing: -0.02em;
}
/* ysjeon | 2026-02-23 | 태그라인 크기 80% */
.about-hero-tagline {
  font-size: clamp(0.8rem, 1.2vw, 1rem);
  line-height: 1.6;
  opacity: 0.95;
  font-weight: var(--fw-regular);
}

/* ysjeon | 2026-02-22 | 솔루션 페이지 공통 헤더 및 유튜브 데이터분석 섹션 */
.solution-common-header {
  margin-bottom: var(--spacing-2xl);
  text-align: center;
}
.solution-common-heading {
  font-size: var(--fs-body-large);
  font-weight: var(--fw-medium);
  color: var(--color-black);
  margin-bottom: var(--spacing-sm);
}
.solution-common-tagline {
  font-size: var(--fs-body);
  line-height: 1.7;
  color: var(--color-gray-700);
  margin-bottom: var(--spacing-sm);
}
.solution-common-tagline strong {
  font-weight: var(--fw-semibold);
  color: var(--color-black);
}
.solution-common-desc {
  font-size: var(--fs-body);
  line-height: 1.7;
  color: var(--color-gray-600);
  margin: 0;
}

/* ysjeon | 2026-02-22 | 사업분야 공통 헤더 및 빅데이터 분석 섹션 */
.business-common-header {
  margin-bottom: var(--spacing-2xl);
  text-align: center;
}
.business-common-heading {
  font-size: var(--fs-body-large);
  font-weight: var(--fw-medium);
  color: var(--color-black);
  margin-bottom: var(--spacing-sm);
}
.business-common-tagline {
  font-size: var(--fs-body);
  line-height: 1.7;
  color: var(--color-gray-700);
  margin-bottom: var(--spacing-sm);
}
.business-common-tagline strong {
  font-weight: var(--fw-semibold);
  color: var(--color-black);
}
.business-common-desc {
  font-size: var(--fs-body);
  line-height: 1.7;
  color: var(--color-gray-600);
  margin: 0;
}
/* ysjeon | 사업분야 전용 히어로 배경 (검정 그라데이션) */
.business-hero {
  background-image: linear-gradient(135deg, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.4) 100%),
    url('https://images.unsplash.com/photo-1551288049-bebda4e38f71?w=1600&q=80');
  background-size: cover;
  background-position: center;
  color: var(--color-white);
}
.business-divider {
  margin: var(--spacing-xl) 0;
}
.business-page-section .section-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}
.business-intro {
  margin-bottom: var(--spacing-3xl);
  text-align: center;
}
.business-intro-lead {
  font-size: var(--fs-body-large);
  line-height: 1.8;
  color: var(--color-gray-700);
  max-width: 640px;
  margin: 0 auto var(--spacing-lg);
}
.business-intro-lead strong {
  font-weight: var(--fw-medium);
  color: var(--color-black);
}
.business-intro-body {
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--color-gray-600);
  max-width: 640px;
  margin: 0 auto;
}
.business-domains {
  padding-top: var(--spacing-2xl);
  padding-bottom: var(--spacing-2xl);
  background: linear-gradient(180deg, rgba(79, 70, 229, 0.04) 0%, transparent 100%);
  border-radius: 16px;
  margin-top: var(--spacing-xl);
}
.business-domains-title {
  font-size: var(--fs-body-large);
  font-weight: var(--fw-medium);
  color: var(--color-black);
  margin-bottom: var(--spacing-sm);
  text-align: center;
}
.business-domains-title .business-domains-title-accent {
  color: var(--color-business-accent, #4f46e5);
}
.business-domains-desc {
  font-size: var(--fs-body);
  line-height: 1.7;
  color: var(--color-gray-600);
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}
.business-domains-inner {
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}
.business-domain-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-2xl);
}
.business-domain-card {
  width: 100%;
  padding: var(--spacing-xl);
  border: 1px solid var(--color-gray-200);
  border-radius: 12px;
  background: var(--color-white);
  transition: box-shadow var(--transition-fast), border-color var(--transition-fast);
  border-top: 4px solid var(--color-business-accent, #4f46e5);
  box-shadow: 0 2px 8px rgba(79, 70, 229, 0.06);
}
.business-domain-card:hover {
  box-shadow: 0 8px 24px rgba(79, 70, 229, 0.12);
  border-color: var(--color-business-accent, #4f46e5);
}
.business-domain-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.12) 0%, rgba(99, 102, 241, 0.08) 100%);
  color: var(--color-business-accent, #4f46e5);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  font-size: 1.5rem;
}
.business-domain-icon ion-icon {
  width: 28px;
  height: 28px;
}
.business-domain-title {
  font-size: var(--fs-body);
  font-weight: var(--fw-semibold);
  color: var(--color-black);
  margin-bottom: var(--spacing-sm);
}
.business-domain-desc {
  font-size: var(--fs-body-sm, 0.9375rem);
  line-height: 1.6;
  color: var(--color-gray-600);
  margin: 0;
}
.business-cta-wrap {
  text-align: center;
  margin-top: var(--spacing-2xl);
}
.business-cta-wrap .solution-cta {
  background-color: var(--color-accent);
}
.business-cta-wrap .solution-cta:hover {
  background-color: var(--color-accent-hover);
}

/* ysjeon | 데이터 컨설팅 진행 단계 (STEP 1~4) */
.business-steps {
  padding-top: var(--spacing-2xl);
  padding-bottom: var(--spacing-2xl);
  background: linear-gradient(180deg, rgba(79, 70, 229, 0.04) 0%, transparent 100%);
  border-radius: 16px;
  margin-top: var(--spacing-xl);
}
.business-step-list {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--spacing-2xl);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--spacing-2xl);
}
.business-step-card {
  padding: var(--spacing-lg) var(--spacing-xl);
  border: 1px solid var(--color-gray-200);
  border-radius: 12px;
  background: var(--color-white);
  border-left: 4px solid var(--color-accent);
  box-shadow: 0 2px 8px rgba(79, 70, 229, 0.06);
  transition: box-shadow var(--transition-fast), border-color var(--transition-fast);
}
.business-step-card:hover {
  box-shadow: 0 6px 20px rgba(79, 70, 229, 0.1);
  border-left-color: var(--color-accent-hover);
}
.business-step-num {
  display: inline-block;
  font-size: var(--fs-caption);
  font-weight: var(--fw-semibold);
  color: var(--color-accent);
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-xs);
}
.business-step-title {
  font-size: var(--fs-body);
  font-weight: var(--fw-semibold);
  color: var(--color-black);
  margin-bottom: var(--spacing-sm);
}
.business-step-desc {
  font-size: var(--fs-body-sm, 0.9375rem);
  line-height: 1.65;
  color: var(--color-gray-600);
  margin: 0;
}

/* ysjeon | AI 솔루션 구축 - 설계·아키텍처 이미지 2개만 */
.business-ai-visuals {
  padding-top: var(--spacing-2xl);
  padding-bottom: var(--spacing-2xl);
  margin-bottom: var(--spacing-xl);
  background: linear-gradient(180deg, rgba(79, 70, 229, 0.04) 0%, transparent 100%);
  border-radius: 16px;
}
.business-ai-two-figures {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
  max-width: 720px;
  margin: 0 auto;
}
.business-ai-figure {
  margin: 0;
}
.business-ai-figure img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 10px;
  border: 1px solid rgba(79, 70, 229, 0.15);
  box-shadow: 0 2px 12px rgba(79, 70, 229, 0.06);
}
.business-ai-figcaption {
  font-size: var(--fs-body-small);
  line-height: 1.5;
  color: var(--color-gray-600);
  margin-top: var(--spacing-xs);
  text-align: center;
}

/* ysjeon | AI 솔루션 구축 - 기술 스택 블록 */
.business-tech-stack {
  padding-top: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}
.business-tech-list {
  list-style: none;
  padding: 0;
  margin: 0;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}
.business-tech-list li {
  display: flex;
  align-items: baseline;
  gap: var(--spacing-sm);
  font-size: var(--fs-body);
  line-height: 1.6;
  color: var(--color-gray-700);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: 8px;
  background: linear-gradient(90deg, rgba(79, 70, 229, 0.06) 0%, transparent 100%);
  border-left: 3px solid var(--color-accent);
}
.business-tech-label {
  flex-shrink: 0;
  font-weight: var(--fw-semibold);
  color: var(--color-accent);
  min-width: 6.5em;
}
.business-ai-extra {
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
  margin-top: var(--spacing-lg);
  padding: var(--spacing-lg);
  border-radius: 12px;
  background: rgba(79, 70, 229, 0.05);
  border: 1px solid rgba(79, 70, 229, 0.15);
}
.business-ai-extra-lead {
  font-size: var(--fs-body);
  line-height: 1.7;
  color: var(--color-gray-700);
  margin: 0;
  text-align: center;
}
.business-ai-extra-lead strong {
  color: var(--color-accent);
  font-weight: var(--fw-medium);
}

/* ysjeon | 커뮤니케이션 - 고객사례 */
.communication-hero {
  background-image: linear-gradient(135deg, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.4) 100%),
    url('https://images.unsplash.com/photo-1522071820081-009f0129c71c?w=1600&q=80');
  background-size: cover;
  background-position: center;
  color: var(--color-white);
}
.communication-common-header {
  margin-bottom: var(--spacing-2xl);
  text-align: center;
}
.communication-common-heading {
  font-size: var(--fs-body-large);
  font-weight: var(--fw-medium);
  color: var(--color-black);
  margin-bottom: var(--spacing-sm);
}
.communication-common-tagline {
  font-size: var(--fs-body);
  line-height: 1.7;
  color: var(--color-gray-700);
  margin-bottom: var(--spacing-sm);
}
.communication-common-tagline strong {
  font-weight: var(--fw-semibold);
  color: var(--color-black);
}
.communication-common-desc {
  font-size: var(--fs-body);
  line-height: 1.7;
  color: var(--color-gray-600);
  margin: 0;
}
.communication-divider {
  margin: var(--spacing-xl) 0;
  border-top: 2px solid rgba(79, 70, 229, 0.25);
}
.communication-page-section .section-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--spacing-xl);
  list-style: none;
  padding: 0;
  margin: 0;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}
@media (min-width: 640px) {
  .case-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 900px) {
  .case-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 1100px) {
  .case-grid { grid-template-columns: repeat(4, 1fr); }
}

.case-card {
  margin: 0;
}
.case-card-link {
  display: flex;
  flex-direction: column;
  padding: 0;
  border: 1px solid var(--color-gray-200);
  border-radius: 12px;
  background: var(--color-white);
  text-decoration: none;
  color: inherit;
  height: 100%;
  box-sizing: border-box;
  border-top: 4px solid var(--color-accent);
  box-shadow: 0 2px 8px rgba(79, 70, 229, 0.06);
  transition: box-shadow var(--transition-fast), border-color var(--transition-fast);
  overflow: hidden;
}
.case-card-link:hover {
  box-shadow: 0 8px 24px rgba(79, 70, 229, 0.12);
  border-color: var(--color-accent);
}
.case-card-image {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: var(--color-gray-100);
}
.case-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  vertical-align: top;
}
.case-card-image--placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 0;
}
.case-card-placeholder-text {
  font-size: var(--fs-body);
  font-weight: var(--fw-medium);
  color: var(--color-gray-500);
}
.case-card-label {
  display: inline-block;
  font-size: var(--fs-caption);
  font-weight: var(--fw-semibold);
  color: var(--color-accent);
  letter-spacing: 0.02em;
  margin-bottom: var(--spacing-xs);
  padding: var(--spacing-md) var(--spacing-lg) 0;
}
.case-card-title {
  font-size: var(--fs-body);
  font-weight: var(--fw-semibold);
  color: var(--color-black);
  margin: 0;
  padding: 0 var(--spacing-lg) var(--spacing-lg);
  line-height: 1.4;
}

.case-article-wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: var(--spacing-xl) 0;
}
.case-back-link {
  display: inline-block;
  font-size: var(--fs-body-small);
  color: var(--color-accent);
  text-decoration: none;
  margin-bottom: var(--spacing-lg);
  font-weight: var(--fw-medium);
}
.case-back-link:hover {
  color: var(--color-accent-hover);
  text-decoration: underline;
}
.case-article {
  padding: var(--spacing-2xl) 0;
  border-top: 2px solid rgba(79, 70, 229, 0.2);
}
.case-article-header {
  margin-bottom: var(--spacing-xl);
}
.case-article-label {
  display: inline-block;
  font-size: var(--fs-body-small);
  font-weight: var(--fw-semibold);
  color: var(--color-accent);
  margin-bottom: var(--spacing-xs);
}
.case-article-title {
  font-size: var(--fs-section-title);
  font-weight: var(--fw-medium);
  color: var(--color-black);
  margin-bottom: var(--spacing-sm);
  line-height: 1.3;
}
.case-article-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}
.case-article-date {
  font-size: var(--fs-body-small);
  color: var(--color-gray-500);
}
.case-article-views {
  font-size: var(--fs-body-small);
  color: var(--color-gray-500);
}
.case-article-body {
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--color-gray-700);
}
.case-article-body p {
  margin-bottom: var(--spacing-md);
}
.case-article-body p:last-child {
  margin-bottom: 0;
}
.case-article-body h2 {
  font-size: var(--fs-body-large);
  font-weight: var(--fw-semibold);
  color: var(--color-black);
  margin: var(--spacing-xl) 0 var(--spacing-sm);
  padding-bottom: var(--spacing-xs);
  border-bottom: 1px solid rgba(79, 70, 229, 0.2);
}
.case-article-body h3 {
  font-size: var(--fs-body);
  font-weight: var(--fw-semibold);
  color: var(--color-black);
  margin: var(--spacing-lg) 0 var(--spacing-xs);
}
.case-article-body blockquote {
  margin: var(--spacing-md) 0;
  padding-left: var(--spacing-md);
  border-left: 4px solid var(--color-accent);
  color: var(--color-gray-700);
  font-style: italic;
}
.case-article-body strong {
  font-weight: var(--fw-semibold);
  color: var(--color-black);
}
.case-article-body .case-gallery {
  margin: var(--spacing-xl) 0;
  display: grid;
  gap: var(--spacing-md);
}
.case-article-body .case-gallery img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  border: 1px solid var(--color-gray-200);
}

.case-article-nav {
  margin-top: var(--spacing-2xl);
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--color-gray-200);
}
.case-article-nav-list {
  border: 1px solid var(--color-gray-200);
  border-radius: 8px;
  overflow: hidden;
  background: var(--color-white);
}
.case-article-nav-row {
  border-bottom: 1px solid var(--color-gray-200);
  min-height: 52px;
  display: flex;
  align-items: center;
}
.case-article-nav-row:last-child {
  border-bottom: none;
}
.case-article-nav-row.is-empty .case-article-nav-title {
  color: var(--color-gray-400);
}
.case-article-nav-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--color-gray-800);
  text-decoration: none;
  font-size: var(--fs-body);
  font-weight: var(--fw-regular);
  transition: background var(--transition-fast), color var(--transition-fast);
}
.case-article-nav-link:hover:not(.is-disabled) {
  background: var(--color-gray-50);
  color: var(--color-accent);
}
.case-article-nav-link.is-disabled {
  color: var(--color-gray-500);
  cursor: default;
}
.case-article-nav-chevron {
  flex-shrink: 0;
  font-size: 0.75em;
  color: var(--color-gray-500);
}
.case-article-nav-link:hover:not(.is-disabled) .case-article-nav-chevron {
  color: var(--color-accent);
}
.case-article-nav-title {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: var(--fs-body);
  color: var(--color-gray-800);
}
.case-article-nav-actions {
  margin-top: var(--spacing-lg);
  display: flex;
  justify-content: flex-start;
  gap: var(--spacing-sm);
}
.case-article-nav-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px var(--spacing-lg);
  background: var(--color-accent);
  color: var(--color-white);
  font-size: var(--fs-body);
  font-weight: var(--fw-medium);
  text-decoration: none;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: background var(--transition-fast);
}
.case-article-nav-btn:hover {
  background: var(--color-accent-hover);
}

.solution-divider {
  margin: var(--spacing-xl) 0;
  border-top: 2px solid rgba(79, 70, 229, 0.25);
}
.solution-intro {
  margin-bottom: var(--spacing-3xl);
  text-align: center;
}
.solution-intro-lead {
  font-size: var(--fs-body-large);
  line-height: 1.8;
  color: var(--color-gray-700);
  max-width: 640px;
  margin: 0 auto var(--spacing-xl);
}
.solution-intro-lead strong {
  font-weight: var(--fw-medium);
  color: var(--color-black);
}
.solution-video-wrap {
  max-width: 900px;
  margin: 0 auto var(--spacing-lg);
}
.solution-video {
  width: 100%;
  border-radius: 8px;
  background-color: var(--color-black);
  display: block;
  margin-bottom: var(--spacing-md);
}
.solution-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: var(--fs-body);
  font-weight: var(--fw-medium);
  color: var(--color-white);
  background-color: var(--color-accent);
  text-decoration: none;
  border-radius: 9999px;
  transition: background-color var(--transition-fast);
}
.solution-cta:hover {
  background-color: var(--color-accent-hover);
}
.solution-cta--primary {
  margin-top: var(--spacing-sm);
}
.solution-differentiators {
  padding-top: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
  border-top: 2px solid rgba(79, 70, 229, 0.2);
}
.solution-diff-list {
  list-style: none;
  margin: 0;
  padding: 0;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}
.solution-diff-list li {
  padding: var(--spacing-md) 0;
  border-bottom: 1px solid var(--color-gray-100);
  font-size: var(--fs-body);
  line-height: 1.7;
  color: var(--color-gray-700);
}
.solution-diff-list li:last-child {
  border-bottom: none;
}
.solution-diff-list strong {
  color: var(--color-accent);
  font-weight: var(--fw-semibold);
}

.solution-steps {
  padding-top: var(--spacing-2xl);
  border-top: 2px solid rgba(79, 70, 229, 0.2);
}
.solution-steps-title {
  font-size: var(--fs-body-large);
  font-weight: var(--fw-medium);
  color: var(--color-accent);
  margin-bottom: var(--spacing-xs);
  text-align: center;
}
.solution-steps-desc {
  font-size: var(--fs-body-small);
  color: var(--color-gray-600);
  margin-bottom: var(--spacing-2xl);
  text-align: center;
}
.solution-steps-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2xl);
}
.solution-step {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}
.solution-step-visual {
  border-radius: 8px;
  overflow: hidden;
  background-color: var(--color-gray-100);
}
.solution-step-visual img {
  width: 100%;
  height: auto;
  display: block;
  vertical-align: top;
}
.solution-step-content {
  padding: var(--spacing-sm) 0;
}
.solution-step-title {
  font-size: var(--fs-body-large);
  font-weight: var(--fw-semibold);
  color: var(--color-black);
  margin-bottom: var(--spacing-xs);
}
.solution-step-desc {
  font-size: var(--fs-body);
  line-height: 1.65;
  color: var(--color-gray-700);
  margin: 0;
}

/* ysjeon | PLAY 데이터분석: 이미지-설명 4행 간단 배치 */
.solution-steps-list--rows {
  flex-direction: column;
  gap: var(--spacing-lg);
}
.solution-step--row {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: var(--spacing-lg);
  direction: ltr;
}
.solution-step--row .solution-step-visual {
  flex-shrink: 0;
  max-width: 280px;
  width: 100%;
}
.solution-step--row .solution-step-visual img {
  width: 100%;
  height: auto;
}
.solution-step--row .solution-step-content {
  flex: 1;
  min-width: 0;
  padding: 0;
}

.solution-steps-cta-wrap {
  text-align: center;
  margin-top: var(--spacing-md);
  margin-bottom: var(--spacing-2xl);
}

/*-----------------------------------*\
  #SECTION COMMON
\*-----------------------------------*/

.section {
  padding: var(--spacing-4xl) var(--container-padding);
  scroll-margin-top: 80px;
  opacity: 1 !important;
  transform: none !important;
}

.section-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  width: 100%;
}

.section-header {
  margin-bottom: var(--spacing-3xl);
  text-align: center;
}

.section-title {
  font-size: var(--fs-section-title);
  font-weight: var(--fw-medium);
  line-height: 1.2;
  color: var(--color-black);
  letter-spacing: -0.02em;
}

.section-content {
  width: 100%;
}

.section-desc {
  font-size: var(--fs-body);
  color: var(--color-gray-600);
  margin-top: var(--spacing-sm);
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

/* ysjeon | 2025-02-06 | 문의하기 폼 */
.contact-section {
  background-color: var(--color-gray-50);
  min-height: 60vh;
}

.contact-form-wrap {
  max-width: 560px;
  margin: 0 auto;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.contact-form-row label {
  display: block;
  font-size: var(--fs-body-small);
  font-weight: var(--fw-medium);
  color: var(--color-gray-800);
  margin-bottom: var(--spacing-xs);
}

.contact-form-row .required {
  color: #c00;
}

.contact-form-row input,
.contact-form-row textarea {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--fs-body);
  font-family: inherit;
  border: 1px solid var(--color-gray-200);
  background-color: var(--color-white);
  transition: border-color var(--transition-fast);
}

.contact-form-row input:focus,
.contact-form-row textarea:focus {
  outline: none;
  border-color: var(--color-gray-800);
}

.contact-form-row textarea {
  resize: vertical;
  min-height: 120px;
}

.contact-form-actions {
  margin-top: var(--spacing-sm);
}

.contact-submit {
  padding: var(--spacing-sm) var(--spacing-xl);
  font-size: var(--fs-body);
  font-weight: var(--fw-medium);
  color: var(--color-white);
  background-color: var(--color-accent);
  border: none;
  cursor: pointer;
  border-radius: 12px;
  transition: background-color var(--transition-fast), opacity var(--transition-fast);
}

.contact-submit:hover:not(:disabled) {
  background-color: var(--color-accent-hover);
}

.contact-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.contact-form-status {
  font-size: var(--fs-body-small);
  margin-top: var(--spacing-sm);
  min-height: 1.5em;
}

.contact-form-status.is-success {
  color: var(--color-gray-700);
}

.contact-form-status.is-error {
  color: #c00;
}

/*-----------------------------------*\
  #ABOUT SECTION | ysjeon | 2026-02-15 리뉴얼
\*-----------------------------------*/

.about-section {
  background: var(--color-white);
  padding-top: var(--spacing-2xl);
}

.section-content--left {
  text-align: left;
  max-width: var(--container-max-width);
  margin: 0 auto;
}

.about-intro-text {
  font-size: var(--fs-body-large);
  font-weight: var(--fw-medium);
  color: var(--color-black);
  margin-bottom: var(--spacing-lg);
}

.about-subtitle {
  font-size: var(--fs-section-title);
  font-weight: var(--fw-medium);
  color: var(--color-black);
  margin-bottom: var(--spacing-md);
}

.about-desc {
  font-size: var(--fs-body);
  line-height: 1.7;
  color: var(--color-gray-700);
  margin-bottom: var(--spacing-xl);
}

.business-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
  list-style: none;
}

.business-card {
  background-color: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: 25px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-base);
}

.business-card:hover {
  border-color: var(--color-gray-300);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.business-card-link {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 260px;
  padding: var(--spacing-lg);
  color: inherit;
  text-decoration: none;
  transition: opacity var(--transition-fast);
}

.business-card-link:hover {
  opacity: 1;
}

.business-card-title {
  font-size: clamp(1.1rem, 1.5vw, 1.35rem);
  font-weight: var(--fw-semibold);
  color: var(--color-black);
  margin-bottom: var(--spacing-sm);
  letter-spacing: -0.02em;
}

.business-card-desc {
  font-size: var(--fs-body-small);
  line-height: 1.6;
  color: var(--color-gray-700);
  margin-bottom: var(--spacing-lg);
  flex: 1;
}

.business-card-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 80px;
  margin-bottom: var(--spacing-lg);
}

.business-card-visual img {
  width: 64px;
  height: 64px;
  object-fit: contain;
}

.business-card-cta {
  font-size: var(--fs-body-small);
  font-weight: var(--fw-medium);
  color: var(--color-black);
  margin-top: auto;
}

.business-card-link:hover .business-card-cta {
  text-decoration: underline;
}

.about-intro {
  max-width: 700px;
  margin: 0 auto var(--spacing-3xl);
  text-align: center;
}

.about-text {
  font-size: var(--fs-body-large);
  line-height: 1.8;
  color: var(--color-gray-700);
}

.about-text strong {
  font-weight: var(--fw-medium);
  color: var(--color-black);
}

/* ysjeon | 2026-02-22 | 회사소개 공통 헤더 (UF5 / 회사연혁) */
.about-common-header {
  margin-bottom: var(--spacing-2xl);
  text-align: center;
}
.about-common-heading {
  font-size: var(--fs-body-large);
  font-weight: var(--fw-medium);
  color: var(--color-black);
  margin-bottom: var(--spacing-sm);
}
.about-common-tagline {
  font-size: var(--fs-body);
  line-height: 1.7;
  color: var(--color-gray-700);
}
.about-common-tagline strong {
  font-weight: var(--fw-semibold);
  color: var(--color-black);
}
.about-common-divider {
  border: none;
  border-top: 2px solid rgba(79, 70, 229, 0.25);
  margin: var(--spacing-xl) 0;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
.about-uf5-body {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}
.about-uf5-subtitle {
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  font-weight: var(--fw-medium);
  color: var(--color-black);
  margin: 0 0 var(--spacing-xs);
}
.about-uf5-intro {
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--color-gray-700);
  max-width: 640px;
  margin: 0 auto var(--spacing-lg);
}
.about-uf5-intro strong {
  font-weight: var(--fw-medium);
  color: var(--color-black);
}
.about-download-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: var(--fs-body);
  font-weight: var(--fw-medium);
  color: var(--color-white);
  background-color: var(--color-accent);
  text-decoration: none;
  border-radius: 9999px;
  transition: background-color var(--transition-fast), opacity var(--transition-fast);
}
.about-download-btn:hover {
  background-color: var(--color-accent-hover);
}
.about-download-btn span {
  font-size: 0.75em;
}
.about-uf5-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-3xl);
}
.about-uf5-grid--cards-only {
  grid-template-columns: 1fr;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}
.about-uf5-col-title {
  font-size: var(--fs-body-large);
  font-weight: var(--fw-medium);
  color: var(--color-black);
  margin-bottom: var(--spacing-lg);
}
.about-uf5-section .timeline,
.about-page .about-uf5-col--history .timeline {
  max-width: 100%;
  margin: 0;
}
.about-location {
  padding-top: var(--spacing-2xl);
  border-top: 2px solid rgba(79, 70, 229, 0.2);
}
.about-location-title {
  font-size: var(--fs-body-large);
  font-weight: var(--fw-medium);
  color: var(--color-accent);
  margin-bottom: var(--spacing-lg);
}
.about-location-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: start;
}
.about-location-map-wrap {
  position: relative;
  width: 100%;
  border-radius: 8px;
  overflow: hidden;
  background-color: var(--color-gray-100);
}
.about-location-map-wrap iframe {
  display: block;
}
.about-location-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}
.about-location-subtitle {
  font-size: var(--fs-body);
  font-weight: var(--fw-semibold);
  color: var(--color-black);
  margin: 0 0 var(--spacing-xs);
}
.about-location-subtitle-label {
  font-size: var(--fs-body-small);
  font-weight: var(--fw-medium);
  color: var(--color-gray-700);
  margin: 0 0 var(--spacing-xs);
}
.about-location-address {
  font-size: var(--fs-body);
  line-height: 1.6;
  color: var(--color-gray-700);
  margin: 0;
}
.about-location-transit {
  margin: 0;
  padding-left: 1.25rem;
  font-size: var(--fs-body-small);
  line-height: 1.7;
  color: var(--color-gray-700);
}
.about-location-transit li {
  margin-bottom: var(--spacing-xs);
}
.about-location-transit li:last-child {
  margin-bottom: 0;
}

/* ysjeon | 2026-02-22 | 회사연혁 페이지 인증&허가 섹션 (bigxdata/history 참고) */
.about-certifications {
  padding-top: var(--spacing-3xl);
  margin-top: var(--spacing-3xl);
  border-top: 2px solid rgba(79, 70, 229, 0.2);
}
.about-certifications-title {
  font-size: var(--fs-body-large);
  font-weight: var(--fw-medium);
  color: var(--color-accent);
  margin-bottom: var(--spacing-xs);
}
.about-certifications-desc {
  font-size: var(--fs-body-small);
  color: var(--color-gray-600);
  margin-bottom: var(--spacing-lg);
}
.about-cert-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
  list-style: none;
  margin: 0;
  padding: 0;
}
.about-cert-item-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
}
.about-cert-image-wrap {
  position: relative;
  width: 100%;
  max-width: 280px;
  aspect-ratio: 3 / 4;
  background-color: var(--color-gray-100);
  border: 1px solid var(--color-gray-200);
  border-radius: 8px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.about-cert-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}
.about-cert-placeholder {
  display: none;
  position: absolute;
  inset: 0;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-body-small);
  color: var(--color-gray-400);
  text-align: center;
  line-height: 1.5;
  padding: var(--spacing-md);
}
.about-cert-placeholder.visible {
  display: flex;
}
.about-cert-label {
  font-size: var(--fs-body-small);
  font-weight: var(--fw-medium);
  color: var(--color-gray-700);
  margin: 0;
}

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

.timeline-title {
  font-size: var(--fs-body-large);
  font-weight: var(--fw-medium);
  color: var(--color-black);
  margin-bottom: var(--spacing-xl);
  text-align: center;
}

.timeline-item {
  display: flex;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-2xl);
  position: relative;
  opacity: 1 !important;
  transform: none !important;
}

.timeline-item:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 60px;
  top: 40px;
  width: 2px;
  height: calc(100% + var(--spacing-lg));
  background-color: var(--color-accent);
  opacity: 0.5;
}

.timeline-year {
  font-size: var(--fs-body);
  font-weight: var(--fw-semibold);
  color: var(--color-accent);
  min-width: 60px;
  flex-shrink: 0;
}

.timeline-content {
  flex: 1;
  padding-top: 2px;
}

.timeline-event {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
  font-size: var(--fs-body);
  line-height: 1.6;
  color: var(--color-gray-700);
}

.timeline-event:last-child {
  margin-bottom: 0;
}

.timeline-icon {
  flex-shrink: 0;
  font-size: 1.2em;
  line-height: 1;
}

.timeline-event .external-link {
  display: inline-flex;
  align-items: center;
  margin-left: var(--spacing-xs);
  opacity: 0.6;
  transition: opacity var(--transition-fast);
}

.timeline-event .external-link:hover {
  opacity: 1;
}

.timeline-event .external-link img {
  width: 14px;
  height: 14px;
  display: inline-block;
}

/*-----------------------------------*\
  #PRODUCT SECTION | ysjeon | 2026-02-15 리뉴얼
\*-----------------------------------*/

.product-section {
  background-color: var(--color-gray-50);
  padding-top: calc(var(--spacing-4xl) / 2);
}

.product-section-title {
  font-size: var(--fs-section-title);
  font-weight: var(--fw-medium);
  color: var(--color-black);
  margin-bottom: var(--spacing-md);
}

.product-section-desc {
  font-size: var(--fs-body);
  line-height: 1.7;
  color: var(--color-gray-700);
  margin-bottom: var(--spacing-xl);
}

.service-tabs-wrap {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-xl);
  text-align: left;
}

.service-tabs-list {
  flex-shrink: 0;
  list-style: none;
  margin: 0;
  padding: 0;
}

.service-tab-item {
  margin-bottom: var(--spacing-xs);
}

.service-tab-item:last-child {
  margin-bottom: 0;
}

.service-tab-item button {
  display: block;
  width: 100%;
  min-width: 180px;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--fs-body);
  font-weight: var(--fw-medium);
  color: var(--color-gray-700);
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  text-align: left;
  cursor: pointer;
  transition: border-color var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast);
}

.service-tab-item button:hover {
  border-color: var(--color-gray-400);
  color: var(--color-black);
}

.service-tab-item.active button {
  border-color: var(--color-black);
  background-color: var(--color-gray-50);
  color: var(--color-black);
  font-weight: var(--fw-semibold);
}

.service-tabs-panel {
  flex: 1;
  min-width: 0;
  border: 1px solid var(--color-gray-200);
  border-radius: 8px;
  padding: var(--spacing-md);
  background-color: var(--color-white);
}

.service-tabs-video {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: 8px;
  background-color: var(--color-gray-100);
  margin-bottom: var(--spacing-md);
}

.service-tabs-video video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.service-tab-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--fs-body-small);
  font-weight: var(--fw-medium);
  color: var(--color-black);
  text-decoration: none;
  padding: var(--spacing-xs) 0;
  border-bottom: 1px solid var(--color-black);
  transition: opacity var(--transition-fast);
}

.service-tab-cta:hover {
  opacity: 0.7;
}

.service-tab-cta img {
  width: 14px;
  height: 14px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
  list-style: none;
}

.service-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-200);
  transition: border-color var(--transition-fast), box-shadow var(--transition-base);
}

.service-card:hover {
  border-color: var(--color-gray-300);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.service-card-link {
  display: flex;
  flex-direction: column;
  height: 100%;
  color: inherit;
  text-decoration: none;
  transition: opacity var(--transition-fast);
}

.service-card-link:hover {
  opacity: 1;
}

.service-card-video {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background-color: var(--color-gray-100);
}

.service-card-video video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.service-card-title {
  font-size: clamp(1rem, 1.3vw, 1.25rem);
  font-weight: var(--fw-semibold);
  color: var(--color-black);
  padding: var(--spacing-md) var(--spacing-lg) 0;
  margin-bottom: var(--spacing-sm);
}

.service-card-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--fs-body-small);
  font-weight: var(--fw-medium);
  color: var(--color-black);
  padding: 0 var(--spacing-lg) var(--spacing-lg);
  margin-top: auto;
}

.service-card-link:hover .service-card-cta {
  text-decoration: underline;
}

.service-card-cta img {
  width: 14px;
  height: 14px;
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--fs-body);
  font-weight: var(--fw-medium);
  color: var(--color-black);
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--color-black);
  transition: opacity var(--transition-fast);
}

.service-link:hover {
  opacity: 0.7;
}

.service-link img {
  width: 14px;
  height: 14px;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-2xl);
  max-width: 1200px;
  margin: 0 auto;
}

.product-card {
  display: flex;
  flex-direction: column;
}

.product-video {
  width: 100%;
  margin-bottom: var(--spacing-lg);
}

.product-video video {
  width: 100%;
  height: auto;
}

.product-info {
  text-align: center;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-name {
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  font-weight: var(--fw-medium);
  line-height: 1.2;
  color: var(--color-black);
  margin-bottom: var(--spacing-md);
  letter-spacing: -0.02em;
}

.product-description {
  font-size: var(--fs-body);
  line-height: 1.6;
  color: var(--color-gray-700);
  margin-bottom: var(--spacing-sm);
}

.product-feature {
  font-size: var(--fs-body-small);
  line-height: 1.6;
  color: var(--color-gray-600);
  margin-bottom: var(--spacing-md);
}

.product-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--fs-body);
  color: var(--color-black);
  font-weight: var(--fw-medium);
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--color-black);
  transition: all var(--transition-base);
  position: relative;
}

.product-link::before {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-black);
  transition: width var(--transition-base);
}

.product-link:hover {
  opacity: 0.7;
  padding-left: var(--spacing-xs);
}

.product-link:hover::before {
  width: 100%;
}

.product-link img {
  transition: transform var(--transition-base);
}

.product-link:hover img {
  transform: translateX(4px);
}

.product-link img {
  width: 14px;
  height: 14px;
  display: inline-block;
}

/*-----------------------------------*\
  #WHY UF5 SECTION | ysjeon | 2026-02-15
\*-----------------------------------*/

.whyuf5-section {
  background: linear-gradient(to right, #d0d0e5 0%, #d8d8ea 30%, #e8e8f2 60%, #f8f8fd 100%);
  padding-top: calc(var(--spacing-4xl) / 2);
}

.whyuf5-title {
  font-size: var(--fs-section-title);
  font-weight: var(--fw-medium);
  color: var(--color-black);
  text-align: left;
  margin-bottom: var(--spacing-2xl);
}

.whyuf5-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: start;
}

.whyuf5-col-title {
  font-size: var(--fs-body-large);
  font-weight: var(--fw-medium);
  color: var(--color-black);
  margin-bottom: var(--spacing-xl);
}

.whyuf5-section .timeline {
  max-width: 100%;
  margin: 0;
}

.whyuf5-section .timeline-title {
  display: none;
}

.strength-list {
  list-style: none;
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--color-gray-700);
}

.strength-list li {
  position: relative;
  padding-left: 1.25em;
  margin-bottom: var(--spacing-sm);
}

.strength-list li::before {
  content: '·';
  position: absolute;
  left: 0;
  font-weight: var(--fw-semibold);
  color: var(--color-black);
}

/* strength cards | ysjeon | 2026-02-15 | 이미지 스타일 카드 */
.strength-cards {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.strength-card {
  position: relative;
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: 12px;
  color: var(--color-white);
  overflow: hidden;
  min-height: 102px;
}

.strength-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: blur(4px);
  transform: scale(1.08);
  z-index: 0;
}

.strength-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(67, 56, 202, 0.55) 0%, rgba(0, 0, 0, 0.6) 100%);
  z-index: 1;
}

.strength-card--bg1::before {
  background-image: url("https://images.unsplash.com/photo-1551288049-bebda4e38f71?w=800");
}

.strength-card--bg2::before {
  background-image: url("https://images.unsplash.com/photo-1522071820081-009f0129c71c?w=800");
}

.strength-card--bg3::before {
  background-image: url("https://images.unsplash.com/photo-1600880292203-757bb62b4baf?w=800");
}

.strength-card--bg4::before {
  background-image: url("https://images.unsplash.com/photo-1497366216548-37526070297c?w=800");
}

.strength-card .strength-card-icon,
.strength-card .strength-card-title,
.strength-card .strength-card-desc {
  position: relative;
  z-index: 2;
}

.strength-card-icon {
  position: absolute;
  top: var(--spacing-xs);
  right: var(--spacing-md);
  color: rgba(255, 255, 255, 0.9);
}

.strength-card-icon ion-icon {
  font-size: 28px;
}

.strength-card-title {
  font-size: clamp(1.35rem, 2vw, 1.75rem);
  font-weight: var(--fw-semibold);
  margin-bottom: var(--spacing-xs);
  letter-spacing: -0.02em;
}

.strength-card-subtitle {
  font-size: var(--fs-body-small);
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: var(--spacing-sm);
}

.strength-card-desc {
  font-size: var(--fs-body-small);
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.8);
}

/*-----------------------------------*\
  #BLOG SECTION
\*-----------------------------------*/

.blog-section {
  background-color: var(--color-white);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
  max-width: 1000px;
  margin: 0 auto;
}

.blog-card {
  background-color: var(--color-white);
  transition: transform var(--transition-base);
}

.blog-card:hover {
  transform: translateY(-4px);
}

.blog-link {
  display: block;
  color: inherit;
  text-decoration: none;
}

.blog-image {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background-color: var(--color-gray-100);
}

.blog-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.blog-card:hover .blog-image img {
  transform: scale(1.05);
}

.blog-content {
  padding: var(--spacing-lg);
}

.blog-title {
  font-size: var(--fs-body-large);
  font-weight: var(--fw-medium);
  color: var(--color-black);
  margin-bottom: var(--spacing-sm);
  line-height: 1.4;
}

.blog-excerpt {
  font-size: var(--fs-body);
  color: var(--color-gray-600);
  line-height: 1.6;
}

/*-----------------------------------*\
  #FOOTER
\*-----------------------------------*/

/* ysjeon | 2026-02-15 | JS 삽입 전 placeholder 레이아웃 */
#navbar-container:not(.loaded) { min-height: 72px; }
#footer-container:not(.loaded) { min-height: 220px; }

/* ysjeon | 2026-02-22 | 스크롤 스냅 제거 */

.site-footer {
  background-color: #1a1a1a;
  border-top: var(--border-width) solid var(--border-color);
  padding: var(--spacing-3xl) var(--container-padding);
  margin-top: auto;
}

.footer-inner {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--spacing-2xl);
  align-items: start;
}

.footer-menu {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
}

.footer-menu-column {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-menu-title {
  font-size: var(--fs-body);
  font-weight: 600;
  color: #ffffff;
  margin-bottom: var(--spacing-xs);
}

.footer-menu-link {
  font-size: var(--fs-body-small);
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-menu-link:hover {
  color: #ffffff;
}

.footer-company {
  text-align: left;
  min-width: 300px;
  max-width: 340px;
}

.footer-company-name {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--fs-body);
  color: #ffffff;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: var(--spacing-md);
}

.footer-company-name .footer-logo {
  height: 2.15em;
  width: auto;
  vertical-align: middle;
}

.footer-company-details {
  margin-bottom: var(--spacing-md);
}

.footer-text {
  font-size: var(--fs-body-small);
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.7;
  margin-bottom: var(--spacing-xs);
}

.footer-text:last-of-type {
  margin-bottom: 0;
}

.footer-inquiry-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  background: #000;
  color: #fff;
  font-size: var(--fs-caption);
  font-weight: 500;
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 4px;
  transition: background 0.2s ease, border-color 0.2s ease;
  margin-bottom: var(--spacing-lg);
}

.footer-inquiry-btn:hover {
  background: #333;
  border-color: rgba(255, 255, 255, 0.5);
}

.footer-copyright {
  font-size: var(--fs-caption);
  color: rgba(255, 255, 255, 0.6);
  margin-top: 0;
}

/*-----------------------------------*\
  #RESPONSIVE - MOBILE
\*-----------------------------------*/

@media (max-width: 768px) {
  :root {
    --spacing-4xl: 4rem; /* 64px */
    --spacing-3xl: 3rem; /* 48px */
    --spacing-2xl: 2rem; /* 32px */
    --container-padding: 0.75rem;
  }

  .site-header {
    margin: 0;
  }

  /* ysjeon | 2026-02-22 | 가로형 헤더 유지 (상단 992/768 블록과 동일 방향) */
  .navbar {
    grid-template-columns: auto 1fr auto;
    gap: var(--spacing-xs);
    padding-left: var(--spacing-sm);
    padding-right: var(--spacing-sm);
  }

  .navbar-logo {
    justify-self: flex-start;
  }

  .navbar-list {
    justify-content: center;
    flex-wrap: nowrap;
    gap: 0.75rem;
  }

  .lang-toggle,
  .navbar-contact {
    justify-self: flex-end;
    align-self: center;
  }

  .hero-section {
    min-height: auto;
    height: auto;
  }

  .hero-content {
    padding: var(--spacing-2xl) var(--container-padding);
  }

  .hero-text {
    padding: var(--spacing-lg);
  }

  .section {
    padding: var(--spacing-3xl) var(--container-padding);
    scroll-margin-top: 56px;
  }

  .section.hero-section {
    margin-top: 0 !important;
    margin-bottom: 0 !important;
    margin-left: calc(50% - 50vw) !important;
    margin-right: calc(50% - 50vw) !important;
    padding: 0 !important;
    width: 100vw;
    max-width: 100vw;
    box-sizing: border-box;
  }

  .section-header {
    margin-bottom: var(--spacing-2xl);
  }

  /* ysjeon | 2026-02-22 | 모바일 about 섹션 정돈 */
  .about-section .section-container {
    padding: 0;
  }

  .about-intro-text {
    font-size: clamp(0.95rem, 2.5vw, 1.1rem);
    line-height: 1.65;
    margin-bottom: var(--spacing-md);
  }

  .about-section hr {
    margin: var(--spacing-md) 0;
  }

  .about-subtitle {
    font-size: clamp(1.25rem, 4vw, 1.5rem);
    margin-bottom: var(--spacing-sm);
    margin-top: var(--spacing-md);
  }

  .about-desc {
    font-size: 0.9375rem;
    margin-bottom: var(--spacing-lg);
  }

  .business-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .business-card-link {
    min-height: 220px;
    padding: var(--spacing-md) var(--spacing-lg);
  }

  .business-card-title {
    font-size: 1.1rem;
  }

  .business-card-desc {
    font-size: 0.875rem;
  }

  .about-intro {
    margin-bottom: var(--spacing-2xl);
  }

  .timeline-item {
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  .timeline-item:not(:last-child)::after {
    display: none;
  }

  .timeline-year {
    min-width: auto;
    margin-bottom: var(--spacing-xs);
  }

  .timeline-event {
    flex-wrap: wrap;
  }

  .product-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }

  .service-tabs-wrap {
    flex-direction: column;
    gap: var(--spacing-md);
  }

  .service-tabs-list {
    display: flex;
    flex-direction: column;
    flex-wrap: nowrap;
    gap: var(--spacing-xs);
  }

  .service-tab-item {
    margin-bottom: 0;
    width: 100%;
  }

  .service-tab-item button {
    width: 100%;
    min-height: 44px;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
    white-space: nowrap;
  }

  .service-tabs-panel {
    margin-top: 0;
  }

  .service-tabs-video {
    max-width: 100%;
  }

  .product-section-title {
    font-size: clamp(1.25rem, 4vw, 1.5rem);
    margin-bottom: var(--spacing-sm);
  }

  .product-section-desc {
    font-size: 0.9375rem;
    margin-bottom: var(--spacing-md);
  }

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

  .whyuf5-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }

  .about-hero {
    min-height: 36vh;
    padding: var(--spacing-2xl) var(--container-padding);
  }

  .business-domain-list {
    grid-template-columns: 1fr;
  }

  .business-ai-two-figures {
    grid-template-columns: 1fr;
    max-width: 400px;
    gap: var(--spacing-lg);
  }

  .about-uf5-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }

  .about-location-inner {
    grid-template-columns: 1fr;
  }

  .about-cert-list {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .solution-step {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    direction: ltr;
  }
  .solution-step--row {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  .solution-step--row .solution-step-visual {
    max-width: 100%;
  }
  .solution-step-visual {
    order: 0;
  }
  .solution-step-content {
    order: 1;
  }

  .whyuf5-title {
    font-size: clamp(1.25rem, 4vw, 1.5rem);
    margin-bottom: var(--spacing-xl);
  }

  .whyuf5-col-title {
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
  }

  .whyuf5-col--strength {
    min-width: 0;
    overflow: visible;
  }

  .strength-cards {
    gap: var(--spacing-md);
    width: 100%;
  }

  .strength-card {
    padding: var(--spacing-md) var(--spacing-lg);
    min-height: 0;
    height: auto;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
  }

  .strength-card-title {
    font-size: 0.9rem;
  }

  .strength-card-desc {
    font-size: 0.7rem;
    line-height: 1.4;
    white-space: normal;
    overflow: visible;
    text-overflow: clip;
  }

  .whyuf5-section .timeline-item {
    margin-bottom: var(--spacing-md);
    gap: var(--spacing-sm);
  }

  .whyuf5-section .timeline-event {
    font-size: 0.7rem;
    margin-bottom: var(--spacing-xs);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .whyuf5-section .timeline-event:last-child {
    margin-bottom: 0;
  }

  .whyuf5-section .timeline-year {
    font-size: 0.8rem;
  }

  .timeline-event {
    font-size: 0.9375rem;
  }

  .footer-menu {
    display: none;
  }

  .product-video {
    margin-bottom: var(--spacing-lg);
  }

  .blog-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }

  .footer-menu {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
  }

  .footer-company {
    min-width: auto;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.15);
  }
}

/* ysjeon | 2026-02-22 | 가로형 헤더 유지, 최소 여백 + 480px 정돈 */
@media (max-width: 480px) {
  :root {
    --container-padding: 1rem;
  }

  .navbar {
    grid-template-columns: auto 1fr auto;
    --navbar-padding-y: 5px;
    padding: var(--navbar-padding-y) var(--spacing-sm);
    gap: var(--spacing-xs);
  }

  .navbar-logo {
    justify-self: start;
  }

  .navbar-logo img {
    height: 24px;
  }

  .navbar-list {
    justify-content: center;
    flex-wrap: nowrap;
    gap: 0.5rem;
  }

  .navbar-link,
  .navbar-link--trigger {
    font-size: 0.7rem;
  }

  .navbar-contact {
    font-size: 0.7rem;
    justify-self: end;
  }

  .section {
    padding: var(--spacing-2xl) var(--container-padding);
  }

  .about-intro-text {
    font-size: 0.9375rem;
  }

  .business-card-link {
    min-height: 200px;
    padding: var(--spacing-md);
  }

  .service-tab-item button {
    font-size: 0.8125rem;
    padding: var(--spacing-xs) var(--spacing-sm);
  }

  .hero-text {
    padding: var(--spacing-md);
  }

  .footer-menu {
    grid-template-columns: 1fr;
  }
}

/*-----------------------------------*\
  #UTILITIES
\*-----------------------------------*/

.external-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.external-link img {
  width: 14px;
  height: 14px;
  opacity: 0.6;
  transition: opacity var(--transition-fast);
}

.external-link:hover img {
  opacity: 1;
}

/*-----------------------------------*\
  #ANIMATIONS
\*-----------------------------------*/

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/*-----------------------------------*\
  #ACCESSIBILITY
\*-----------------------------------*/

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }

  /* 애니메이션 비활성화 시 모든 섹션 즉시 표시 */
  .section:not(.hero-section) {
    opacity: 1 !important;
    transform: none !important;
  }
}

/* Focus styles for keyboard navigation */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-black);
  outline-offset: 2px;
}