/* ==========================================================================
   KLab AI Creative - Main Styles
   Anti-AI Pattern: 人間らしさ・深み・オリジナリティを追求
   ========================================================================== */

/* --------------------------------------------------------------------------
   Variables
   -------------------------------------------------------------------------- */

:root {
  /* Colors - 深みのある配色 */
  --color-primary: #1067b8;
  --color-primary-dark: #0a4a82;
  --color-primary-light: #e8f2fb;
  
  /* ダーク系 - 純黒を避け、深いネイビー */
  --color-dark: #0f141a;
  --color-dark-alt: #1a2332;
  --color-dark-surface: #232d3f;
  
  /* 背景 - 純白を避け、温かみのあるオフホワイト */
  --color-background: #fafbfc;
  --color-background-alt: #f0f2f5;
  --color-surface: #ffffff;
  
  /* テキスト */
  --color-text: #1a1a2e;
  --color-text-secondary: #4a5568;
  --color-text-muted: #718096;
  --color-text-on-dark: #f7f8fa;
  --color-text-on-dark-muted: rgba(247, 248, 250, 0.7);
  
  /* アクセント - 金/真鍮系で高級感 */
  --color-accent: #b8860b;
  --color-accent-light: #d4a84b;
  --color-danger: #c53030;
  
  /* ボーダー */
  --color-border: #e2e8f0;
  --color-border-light: #edf2f7;

  /* Typography */
  --font-family-en: 'Montserrat', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-family-ja: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', sans-serif;
  --font-family-base: var(--font-family-ja);

  /* Font Sizes - ダイナミックに大きく */
  --font-size-xs: 0.875rem;
  --font-size-sm: 1rem;
  --font-size-base: 1.125rem;
  --font-size-lg: 1.375rem;
  --font-size-xl: 1.75rem;
  --font-size-2xl: 2.25rem;
  --font-size-3xl: 3rem;
  --font-size-4xl: 4rem;
  --font-size-display: 5rem;

  /* Spacing - 不均一なリズム */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4.5rem;
  --spacing-4xl: 6rem;
  --spacing-5xl: 9rem;

  /* Layout */
  --max-width: 1140px;
  --max-width-narrow: 720px;
  --header-height: 72px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.25s ease;
  --transition-slow: 0.4s ease;

  /* Shadows - 多層化された自然な影 */
  --shadow-sm: 
    0 1px 2px rgba(15, 20, 26, 0.04),
    0 1px 3px rgba(15, 20, 26, 0.06);
  --shadow-md: 
    0 2px 4px rgba(15, 20, 26, 0.03),
    0 4px 8px rgba(15, 20, 26, 0.06),
    0 8px 16px rgba(15, 20, 26, 0.06);
  --shadow-lg: 
    0 4px 6px rgba(15, 20, 26, 0.02),
    0 10px 20px rgba(15, 20, 26, 0.06),
    0 20px 40px rgba(15, 20, 26, 0.08);
  --shadow-xl:
    0 8px 16px rgba(15, 20, 26, 0.04),
    0 20px 40px rgba(15, 20, 26, 0.08),
    0 40px 80px rgba(15, 20, 26, 0.08);

  /* Border Radius - 控えめに */
  --radius-sm: 3px;
  --radius-md: 6px;
  --radius-lg: 10px;
}

/* --------------------------------------------------------------------------
   Base Styles
   -------------------------------------------------------------------------- */

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  font-weight: 400;
  color: var(--color-text);
  background-color: var(--color-background);
  overflow-x: hidden;
  line-height: 1.75;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* --------------------------------------------------------------------------
   Typography - メリハリをつける
   -------------------------------------------------------------------------- */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-ja);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0.04em;
  color: var(--color-text);
}

.text-accent {
  color: var(--color-danger);
  font-weight: 700;
}

.text-primary {
  color: var(--color-primary);
}

.text-muted {
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   Layout
   -------------------------------------------------------------------------- */

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

.container--narrow {
  max-width: var(--max-width-narrow);
}

.section {
  padding: var(--spacing-5xl) 0;
}

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

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

.section--dark {
  background-color: var(--color-dark);
  color: var(--color-text-on-dark);
}

.section--dark-alt {
  background: 
    linear-gradient(180deg, var(--color-dark) 0%, var(--color-dark-alt) 100%);
  color: var(--color-text-on-dark);
}

/* Section Header - デフォルトでセンター */
.section__header {
  margin-bottom: var(--spacing-3xl);
  text-align: center;
}

.section__header--left {
  text-align: left;
  max-width: 640px;
}

.section__label {
  font-family: var(--font-family-en);
  font-size: var(--font-size-sm);
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--spacing-lg);
  display: block;
}

.section--dark .section__label {
  color: var(--color-accent-light);
}

.section__title {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
  line-height: 1.3;
}

.section__title--large {
  font-size: var(--font-size-4xl);
}

.section__lead {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: 1.9;
  max-width: 600px;
}

.section__header--center .section__lead {
  margin: 0 auto;
}

.section--dark .section__lead {
  color: var(--color-text-on-dark-muted);
}

/* --------------------------------------------------------------------------
   Buttons - ソリッドカラー、グラデーション排除
   -------------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2.5rem;
  font-family: var(--font-family-ja);
  font-size: var(--font-size-base);
  font-weight: 600;
  letter-spacing: 0.04em;
  border-radius: var(--radius-md);
  transition:
    background-color var(--transition-fast),
    transform var(--transition-fast),
    box-shadow var(--transition-fast);
  cursor: pointer;
  text-decoration: none;
  border: none;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #fff;
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}

.btn-outline:hover {
  background-color: var(--color-primary);
  color: #fff;
}

.btn-lg {
  padding: 1.25rem 3rem;
  font-size: var(--font-size-lg);
}

.btn-block {
  display: flex;
  width: 100%;
}

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background-color: transparent;
  z-index: 1000;
  border-bottom: 1px solid transparent;
  transition:
    background-color var(--transition-base),
    border-color var(--transition-base);
}

/* トップページ：Hero上では白文字 */
.header--transparent .header__logo-text {
  color: #fff;
}

.header--transparent .header__nav-link {
  color: rgba(255, 255, 255, 0.85);
}

.header--transparent .header__nav-link:hover {
  color: #fff;
}

.header--transparent .header__nav-link--section {
  color: rgba(255, 255, 255, 0.6);
}

.header--transparent .header__nav-link--section:hover {
  color: #fff;
}

.header--transparent .header__nav-divider {
  background-color: rgba(255, 255, 255, 0.3);
}

.header--transparent .btn-primary {
  background-color: #fff;
  color: var(--color-primary);
}

.header--transparent .btn-primary:hover {
  background-color: rgba(255, 255, 255, 0.9);
}

/* スクロール後 / サブページ：白背景+ダーク文字 */
.header--scrolled,
.header--solid {
  background-color: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(12px);
  border-bottom-color: var(--color-border-light);
}

.header--scrolled .header__logo-text,
.header--solid .header__logo-text {
  color: var(--color-primary);
}

.header--scrolled .header__nav-link,
.header--solid .header__nav-link {
  color: var(--color-text-secondary);
}

.header--scrolled .header__nav-link:hover,
.header--solid .header__nav-link:hover {
  color: var(--color-primary);
}

.header--scrolled .header__nav-link--section {
  color: var(--color-text-muted);
}

.header--scrolled .header__nav-divider {
  background-color: var(--color-border);
}

.header--scrolled .btn-primary,
.header--solid .btn-primary {
  background-color: var(--color-primary);
  color: #fff;
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
}

.header__logo a {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
  height: 100%;
}

.header__logo-img {
  height: 22px;
  width: auto;
}

/* ロゴ切り替え：デフォルトはカラーロゴ表示 */
.header__logo-img--white {
  display: none;
  flex-shrink: 0;
}

.header__logo-img--color {
  display: inline-block;
  flex-shrink: 0;
}

/* Hero上では白ロゴ表示 */
.header--transparent .header__logo-img--white {
  display: inline-block;
}

.header--transparent .header__logo-img--color {
  display: none;
}

/* スクロール後はカラーロゴ表示 */
.header--scrolled .header__logo-img--white {
  display: none;
}

.header--scrolled .header__logo-img--color {
  display: inline-block;
}

.header__logo-text {
  font-family: var(--font-family-en);
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.02em;
  line-height: 1;
  position: relative;
  top: 1px;
}

.header__cta {
  display: flex;
  align-items: center;
  height: 100%;
}

.header__cta .btn {
  padding: 0.5rem 1.25rem;
  font-size: var(--font-size-sm);
  line-height: 1;
}

/* Hamburger Menu Button */
.header__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  padding: 8px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 1001;
}

.header__hamburger-line {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--color-text);
  transition: all 0.3s ease;
}

.header__hamburger-line + .header__hamburger-line {
  margin-top: 5px;
}

.header--transparent .header__hamburger-line {
  background-color: #fff;
}

.header--scrolled .header__hamburger-line {
  background-color: var(--color-text);
}

/* Hamburger Active State */
.header__hamburger.is-active .header__hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.header__hamburger.is-active .header__hamburger-line:nth-child(2) {
  opacity: 0;
}

.header__hamburger.is-active .header__hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.mobile-menu.is-open {
  opacity: 1;
  visibility: visible;
}

.mobile-menu__overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
}

.mobile-menu__content {
  position: absolute;
  top: 0;
  right: 0;
  width: 280px;
  max-width: 80%;
  height: 100%;
  background-color: #fff;
  padding: calc(var(--header-height) + var(--spacing-xl)) var(--spacing-lg) var(--spacing-xl);
  transform: translateX(100%);
  transition: transform 0.3s ease;
  overflow-y: auto;
}

.mobile-menu.is-open .mobile-menu__content {
  transform: translateX(0);
}

.mobile-menu__nav {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.mobile-menu__link {
  display: block;
  padding: var(--spacing-md) 0;
  font-size: var(--font-size-base);
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
  border-bottom: 1px solid var(--color-border-light);
}

.mobile-menu__link:hover {
  color: var(--color-primary);
}

.mobile-menu__cta {
  margin-top: var(--spacing-xl);
}

/* --------------------------------------------------------------------------
   Hero - 動画背景 + 左テキスト配置
   -------------------------------------------------------------------------- */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background-color: var(--color-dark);
  color: var(--color-text-on-dark);
  overflow: hidden;
}

/* 動画コンテナ */
.hero__video {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}

.hero__video-pc,
.hero__video-sp {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  min-width: 100%;
  min-height: 100%;
  width: auto;
  height: auto;
  object-fit: cover;
}

/* PC版動画: デフォルト表示 */
.hero__video-pc {
  display: block;
}

/* SP版動画: デフォルト非表示 */
.hero__video-sp {
  display: none;
}

/* 旧スライダー（互換性用） */
.hero__slider {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}

.hero__slide {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  opacity: 0;
  transition: opacity 1.2s ease-in-out;
}

.hero__slide--active {
  opacity: 1;
}

.hero__bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

/* オーバーレイ（左側にグラデーション） */
.hero__overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    90deg,
    rgba(15, 20, 26, 0.45) 0%,
    rgba(15, 20, 26, 0.3) 30%,
    rgba(15, 20, 26, 0.1) 60%,
    rgba(15, 20, 26, 0) 100%
  );
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  width: 100%;
  padding: var(--header-height) var(--spacing-xl) var(--spacing-3xl) 5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 100vh;
}

.hero__label {
  font-family: var(--font-family-en);
  font-size: var(--font-size-base);
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--color-accent-light);
  margin-bottom: var(--spacing-xl);
}

.hero__title {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: var(--font-size-3xl);
  font-weight: 900;
  line-height: 1.5;
  letter-spacing: 0.05em;
  max-width: 66vw;
  color: #fff;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.hero__subtitle {
  font-family: var(--font-family-en);
  font-size: var(--font-size-sm);
  font-weight: 500;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.7);
  margin-top: var(--spacing-md);
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.3);
}

.hero__cta {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.hero__cta .btn-outline {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.5);
}

.hero__cta .btn-outline:hover {
  background-color: #fff;
  color: var(--color-dark);
}

/* スクロールインジケーター */
.hero__scroll {
  position: absolute;
  bottom: var(--spacing-2xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 2;
}

.hero__scroll-text {
  font-family: var(--font-family-en);
  font-size: var(--font-size-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: var(--spacing-sm);
}

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.6) 0%, transparent 100%);
  animation: scrollLine 1.5s ease-in-out infinite;
}

@keyframes scrollLine {
  0%, 100% { transform: scaleY(1); opacity: 1; }
  50% { transform: scaleY(0.5); opacity: 0.5; }
}

/* --------------------------------------------------------------------------
   Problem Section - 非対称レイアウト
   -------------------------------------------------------------------------- */

.problem__intro {
  max-width: 560px;
  margin-bottom: var(--spacing-3xl);
}

.problem__intro-text {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  line-height: 1.9;
}

.problem__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.problem__card {
  background: var(--color-surface);
  padding: var(--spacing-3xl) var(--spacing-2xl);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base),
    border-color var(--transition-base);
}

.problem__card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-border);
}

.problem__number {
  font-family: var(--font-family-en);
  font-size: var(--font-size-display);
  font-weight: 800;
  color: var(--color-primary);
  opacity: 0.15;
  line-height: 1;
  margin-bottom: var(--spacing-lg);
}

.problem__card-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
  color: var(--color-text);
}

.problem__list {
  list-style: none;
}

.problem__list li {
  position: relative;
  padding-left: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.problem__list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   Solution Section - アイコンを角丸四角に
   -------------------------------------------------------------------------- */

/* Solution - 統合ビジュアル（1枚画像） */
.solution__visual {
  width: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.solution__visual img {
  width: 100%;
  height: auto;
  display: block;
}

/* Solution - 横長バナー形式（複数枚の場合） */
.solution__banners {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.solution__banner {
  width: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.solution__banner:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.solution__banner img {
  width: 100%;
  height: auto;
  display: block;
}

/* 旧グリッドスタイル（互換性用） */
.solution__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

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

.solution__icon {
  width: 120px;
  height: 120px;
  margin-bottom: var(--spacing-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-dark-surface);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.solution__icon-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}

.solution__item:hover .solution__icon-img {
  transform: scale(1.05);
}

.solution__icon-text {
  font-family: var(--font-family-en);
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-accent-light);
  letter-spacing: 0.05em;
}

.solution__item-title {
  font-family: var(--font-family-en);
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  letter-spacing: 0.01em;
  color: var(--color-text-on-dark);
}

.solution__item-desc {
  font-size: var(--font-size-base);
  color: var(--color-text-on-dark-muted);
  line-height: 1.9;
}

/* --------------------------------------------------------------------------
   Service Section
   -------------------------------------------------------------------------- */

.service__category {
  margin-bottom: var(--spacing-4xl);
}

.service__category:last-child {
  margin-bottom: 0;
}

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

.service__category-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.service__category-desc {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  max-width: 540px;
}

/* サービスカード - サイズに変化 */
.service__grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: var(--spacing-lg);
}

.service__card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  overflow: hidden;
  transition: 
    transform var(--transition-base),
    box-shadow var(--transition-base);
}

.service__card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.service__card-img {
  aspect-ratio: 16/10;
  background-color: var(--color-dark-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.placeholder-img {
  font-family: var(--font-family-en);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: rgba(255, 255, 255, 0.2);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.service__card-body {
  padding: var(--spacing-lg);
}

.service__card-title {
  font-family: var(--font-family-en);
  font-size: var(--font-size-base);
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
  color: var(--color-text);
}

.service__card-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* 活用領域 */
.service__usage {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
}

.service__usage-item {
  background: var(--color-surface);
  padding: var(--spacing-2xl);
  border-radius: var(--radius-lg);
  border-left: 3px solid var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.service__usage-title {
  font-size: var(--font-size-base);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
}

.service__usage-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.8;
}

/* Service Feature - FEIDIAS風 60:40レイアウト */
.service__intro {
  margin-bottom: var(--spacing-3xl);
  max-width: 640px;
}

.service__intro-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
}

.service__intro-desc {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: 1.9;
}

.service__feature {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
  margin-bottom: var(--spacing-4xl);
}

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

.service__feature--reverse {
  grid-template-columns: 1fr 1.5fr;
}

.service__feature--reverse .service__feature-img {
  order: 2;
}

.service__feature--reverse .service__feature-content {
  order: 1;
}

.service__feature-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.service__feature-img img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform var(--transition-slow);
}

.service__feature-img:hover img {
  transform: scale(1.03);
}

.service__feature-content {
  padding: var(--spacing-lg) 0;
}

.service__feature-num {
  display: block;
  font-family: var(--font-family-en);
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--color-primary);
  opacity: 0.2;
  line-height: 1;
  margin-bottom: var(--spacing-md);
}

.service__feature-title {
  font-family: var(--font-family-en);
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
}

.service__feature-desc {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: 1.9;
  margin-bottom: var(--spacing-lg);
}

.service__feature-link {
  font-family: var(--font-family-en);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.service__feature-link:hover {
  color: var(--color-primary-dark);
}

/* --------------------------------------------------------------------------
   Strength Section - 番号を強調したレイアウト
   -------------------------------------------------------------------------- */

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

.strength__item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: var(--spacing-xl);
  padding: var(--spacing-xl) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  align-items: start;
}

.strength__item:last-child {
  border-bottom: none;
}

.strength__number {
  font-family: var(--font-family-en);
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--color-accent-light);
  line-height: 1;
}

.strength__content {
  padding-top: var(--spacing-xs);
}

.strength__title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-on-dark);
}

.strength__desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-on-dark-muted);
  line-height: 1.8;
  max-width: 560px;
}

/* --------------------------------------------------------------------------
   Contact Section
   -------------------------------------------------------------------------- */

.contact {
  background-color: var(--color-dark);
}

.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--spacing-4xl);
  align-items: start;
}

.contact__info {
  color: var(--color-text-on-dark);
}

.contact__title {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-lg);
}

.contact__lead {
  font-size: var(--font-size-sm);
  color: var(--color-text-on-dark-muted);
  line-height: 1.9;
}

.contact__form-wrapper {
  background: var(--color-dark-surface);
  padding: var(--spacing-2xl);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

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

.form__label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-on-dark);
}

.form__required {
  font-size: var(--font-size-xs);
  color: var(--color-danger);
  margin-left: var(--spacing-xs);
}

.form__input,
.form__textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  font-size: var(--font-size-sm);
  font-family: var(--font-family-ja);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  color: var(--color-text-on-dark);
  transition: 
    border-color var(--transition-fast),
    background var(--transition-fast);
}

.form__input:focus,
.form__textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  background: rgba(255, 255, 255, 0.08);
}

.form__input::placeholder,
.form__textarea::placeholder {
  color: rgba(255, 255, 255, 0.3);
}

.form__textarea {
  resize: vertical;
  min-height: 120px;
}

.form__privacy {
  margin: var(--spacing-xl) 0;
}

.form__checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-on-dark-muted);
  cursor: pointer;
  line-height: 1.5;
}

.form__checkbox input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--color-primary);
  flex-shrink: 0;
}

.form__checkbox a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.form__checkbox a:hover {
  color: var(--color-accent-light);
}

.form__submit {
  text-align: left;
}

.form__message {
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-xl);
  font-size: var(--font-size-sm);
  line-height: 1.6;
  transition: opacity var(--transition-base);
}

.form__message--success {
  background: rgba(72, 187, 120, 0.15);
  border: 1px solid rgba(72, 187, 120, 0.3);
  color: #68d391;
}

.form__message--error {
  background: rgba(245, 101, 101, 0.15);
  border: 1px solid rgba(245, 101, 101, 0.3);
  color: #fc8181;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */

.footer {
  background-color: var(--color-dark);
  color: var(--color-text-on-dark);
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
}

.footer__main {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--spacing-3xl);
  margin-bottom: var(--spacing-2xl);
  padding-bottom: var(--spacing-2xl);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.footer__left {
  flex-shrink: 0;
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.footer__logo-img {
  height: 28px;
  width: auto;
  filter: brightness(0) invert(1);
}

.footer__logo-text {
  font-family: var(--font-family-en);
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
}

.footer__company {
  font-size: var(--font-size-sm);
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
}

.footer__address {
  font-size: var(--font-size-xs);
  color: var(--color-text-on-dark-muted);
}

.footer__links {
  display: grid;
  grid-template-columns: repeat(2, auto);
  gap: var(--spacing-sm) var(--spacing-2xl);
  text-align: left;
}

.footer__links a {
  font-size: var(--font-size-sm);
  color: var(--color-text-on-dark-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer__links a:hover {
  color: var(--color-text-on-dark);
}

.footer__copyright {
  font-size: var(--font-size-xs);
  color: var(--color-text-on-dark-muted);
}

/* --------------------------------------------------------------------------
   Fixed CTA (Mobile)
   -------------------------------------------------------------------------- */

.fixed-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--spacing-md);
  background: rgba(15, 20, 26, 0.95);
  backdrop-filter: blur(12px);
  z-index: 999;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

/* --------------------------------------------------------------------------
   Utilities
   -------------------------------------------------------------------------- */

.pc-only {
  display: inline;
}

.sp-only {
  display: none;
}

/* --------------------------------------------------------------------------
   Animations - 控えめに
   -------------------------------------------------------------------------- */

.animate-on-scroll {
  opacity: 0;
  transform: translateY(16px);
  transition: 
    opacity var(--transition-slow),
    transform var(--transition-slow);
}

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

/* --------------------------------------------------------------------------
   Page Header (Subpages)
   -------------------------------------------------------------------------- */

.page-header {
  background-color: var(--color-dark);
  padding: calc(var(--header-height) + var(--spacing-3xl)) 0 var(--spacing-3xl);
  text-align: center;
}

.page-header__label {
  font-family: var(--font-family-en);
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent-light);
  margin-bottom: var(--spacing-md);
  display: block;
}

.page-header__title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-text-on-dark);
}

/* --------------------------------------------------------------------------
   Header Navigation
   -------------------------------------------------------------------------- */

.header__nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  height: 100%;
}

.header__nav-link {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
  text-decoration: none;
  padding: var(--spacing-sm) var(--spacing-sm);
  position: relative;
  transition: color var(--transition-fast);
  line-height: 1;
  display: flex;
  align-items: center;
  height: 100%;
}

.header__nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--color-primary);
  transform: scaleX(0);
  transition: transform var(--transition-fast);
}

.header__nav-link:hover {
  color: var(--color-primary);
}

.header__nav-link:hover::after {
  transform: scaleX(1);
}

.header__nav-link--active {
  color: var(--color-primary);
}

.header__nav-link--active::after {
  transform: scaleX(1);
}


/* --------------------------------------------------------------------------
   Section Variants
   -------------------------------------------------------------------------- */

.section--gray {
  background-color: var(--color-background-alt);
}

.section--accent {
  background-color: var(--color-primary);
  color: #fff;
}

.section__header--light .section__label {
  color: var(--color-accent-light);
}

.section__header--light .section__title {
  color: var(--color-text-on-dark);
}

.section__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 900px;
  line-height: 1.8;
  margin: 0 auto;
}

.section__header--center .section__subtitle {
  margin: 0 auto;
}

.section__header--light .section__subtitle {
  color: var(--color-text-on-dark-muted);
}

.section__cta {
  text-align: center;
  margin-top: var(--spacing-3xl);
}

.section--dark .btn-outline {
  color: var(--color-text-on-dark);
  border-color: rgba(255, 255, 255, 0.4);
}

.section--dark .btn-outline:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.6);
  color: #fff;
}

/* --------------------------------------------------------------------------
   Button Variants
   -------------------------------------------------------------------------- */

.btn-white {
  background-color: #fff;
  color: var(--color-primary);
}

.btn-white:hover {
  background-color: var(--color-background-alt);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* --------------------------------------------------------------------------
   Service Intro (service.html)
   -------------------------------------------------------------------------- */

.service-intro {
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.service-intro__title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
}

.service-intro__desc {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: 2;
}

/* --------------------------------------------------------------------------
   Service Feature List (service.html)
   -------------------------------------------------------------------------- */

.service__feature-subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.service__feature-list {
  list-style: none;
  margin-top: var(--spacing-lg);
}

.service__feature-list li {
  position: relative;
  padding-left: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.service__feature-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 700;
}

/* --------------------------------------------------------------------------
   Service Variant (2D Option)
   -------------------------------------------------------------------------- */

.service__variant {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: var(--spacing-xl);
  align-items: center;
  margin-top: var(--spacing-3xl);
  padding: var(--spacing-xl);
  background-color: var(--color-background-alt);
  border-radius: var(--radius-lg);
}

.service__variant-img {
  border-radius: var(--radius-md);
  overflow: hidden;
}

.service__variant-img img {
  width: 100%;
  height: auto;
  display: block;
}

.service__variant-title {
  font-size: var(--font-size-base);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.service__variant-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.8;
}

/* --------------------------------------------------------------------------
   Use Cases Section (service.html)
   -------------------------------------------------------------------------- */

.use-cases__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
}

.use-cases__item {
  padding: var(--spacing-2xl);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
}

.use-cases__title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-text-on-dark);
  margin-bottom: var(--spacing-md);
}

.use-cases__desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-on-dark-muted);
  line-height: 1.9;
  margin-bottom: var(--spacing-lg);
}

.use-cases__list {
  list-style: none;
}

.use-cases__list li {
  position: relative;
  padding-left: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-on-dark-muted);
}

.use-cases__list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--color-accent-light);
}

/* --------------------------------------------------------------------------
   CTA Section
   -------------------------------------------------------------------------- */

.cta__content {
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.cta__title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
  line-height: 1.5;
  color: #fff;
}

.cta__desc {
  font-size: var(--font-size-base);
  opacity: 0.9;
  margin-bottom: var(--spacing-xl);
}

/* --------------------------------------------------------------------------
   Service Preview (index.html)
   -------------------------------------------------------------------------- */

.service-preview__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-sm);
}

.service-preview__item {
  display: block;
  position: relative;
  aspect-ratio: 3/4;
  border-radius: var(--radius-md);
  overflow: hidden;
  text-decoration: none;
  transition: transform var(--transition-base);
}

.service-preview__item:hover {
  transform: scale(1.02);
}

.service-preview__img {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}

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

.service-preview__item:hover .service-preview__img img {
  transform: scale(1.08);
}

.service-preview__content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--spacing-xl);
  background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, transparent 100%);
  z-index: 1;
}

.service-preview__title {
  font-family: var(--font-family-en);
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: #fff;
  margin-bottom: var(--spacing-xs);
  text-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.service-preview__desc {
  font-size: var(--font-size-base);
  color: rgba(255,255,255,0.9);
  line-height: 1.6;
  text-shadow: 0 1px 4px rgba(0,0,0,0.3);
}

/* --------------------------------------------------------------------------
   Strength Preview (index.html)
   -------------------------------------------------------------------------- */

/* Strength Preview - 統合ビジュアル（1枚画像） */
.strength-preview__visual {
  width: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.strength-preview__visual img {
  width: 100%;
  height: auto;
  display: block;
}

/* Strength Preview - 横長バナー形式（複数枚の場合） */
.strength-preview__banners {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.strength-preview__banner {
  width: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.strength-preview__banner:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.strength-preview__banner img {
  width: 100%;
  height: auto;
  display: block;
}

/* 旧カードグリッドスタイル（互換性用） */
.strength-preview__grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--spacing-xl);
}

.strength-preview__card {
  grid-column: span 2;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition:
    background-color var(--transition-base),
    border-color var(--transition-base),
    transform var(--transition-base);
}

.strength-preview__card:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-4px);
}

.strength-preview__card:nth-child(4) {
  grid-column: 2 / 4;
}

.strength-preview__card:nth-child(5) {
  grid-column: 4 / 6;
}

.strength-preview__img {
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.strength-preview__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}

.strength-preview__card:hover .strength-preview__img img {
  transform: scale(1.05);
}

.strength-preview__content {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg) var(--spacing-xl);
}

.strength-preview__num {
  font-family: var(--font-family-en);
  font-size: var(--font-size-2xl);
  font-weight: 800;
  color: var(--color-accent-light);
  min-width: 48px;
}

.strength-preview__text {
  font-size: var(--font-size-base);
  font-weight: 500;
  color: var(--color-text-on-dark);
  line-height: 1.5;
}

/* 旧リストスタイル（互換性用） */
.strength-preview__list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.strength-preview__item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
  padding: var(--spacing-xl) var(--spacing-2xl);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast);
}

.strength-preview__item:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.15);
}

/* --------------------------------------------------------------------------
   Strength Intro (strength.html)
   -------------------------------------------------------------------------- */

.strength-intro {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.strength-intro__desc {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: 2;
}

/* --------------------------------------------------------------------------
   Strength Detail (strength.html)
   -------------------------------------------------------------------------- */

.strength__detail {
  max-width: 900px;
}

.strength__detail--reverse {
  margin-left: auto;
}

.strength__detail-header {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.strength__detail-num {
  font-family: var(--font-family-en);
  font-size: var(--font-size-display);
  font-weight: 800;
  color: var(--color-primary);
  opacity: 0.2;
  line-height: 1;
}

.strength__detail-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  line-height: 1.4;
  padding-top: var(--spacing-sm);
}

.strength__detail-content {
  padding-left: calc(var(--font-size-display) * 1.5 + var(--spacing-lg));
}

.strength__detail-lead {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--spacing-xl);
}

.strength__detail-list {
  list-style: none;
}

.strength__detail-list li {
  margin-bottom: var(--spacing-lg);
  padding-left: var(--spacing-xl);
  position: relative;
}

.strength__detail-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  background-color: var(--color-primary);
  border-radius: 50%;
}

.strength__detail-list li strong {
  display: block;
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--spacing-xs);
}

.strength__detail-list li span {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.8;
}

/* Strength Grid for homepage (optional) */
.strength__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

/* --------------------------------------------------------------------------
   Header Navigation Structure (Pages + Sections)
   -------------------------------------------------------------------------- */

.header__nav-pages,
.header__nav-sections {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  height: 100%;
}

.header__nav-divider {
  width: 1px;
  height: 24px;
  background-color: var(--color-border);
  margin: 0 var(--spacing-md);
  align-self: center;
}

.header__nav-link--section {
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
}

.header__nav-link--section:hover {
  color: var(--color-primary);
}

/* --------------------------------------------------------------------------
   About Page Styles
   -------------------------------------------------------------------------- */

.about__intro {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.about__intro-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin-bottom: var(--spacing-xl);
}

.about__intro-desc {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  line-height: 2;
}

/* Company Table */
.company-table {
  max-width: 900px;
  margin: 0 auto;
}

.company-table__inner {
  width: 100%;
  border-collapse: collapse;
}

.company-table__inner th,
.company-table__inner td {
  padding: var(--spacing-lg) var(--spacing-xl);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  font-size: var(--font-size-base);
}

.company-table__inner th {
  width: 200px;
  font-weight: 600;
  color: var(--color-text);
  background-color: rgba(0, 0, 0, 0.02);
}

.company-table__inner td {
  color: var(--color-text-secondary);
}

.company-table__inner td a {
  color: var(--color-primary);
  text-decoration: none;
}

.company-table__inner td a:hover {
  text-decoration: underline;
}

/* Mission */
.mission__content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.mission__text {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-text-on-dark);
  line-height: 1.6;
  margin-bottom: var(--spacing-xl);
}

.mission__desc {
  font-size: var(--font-size-lg);
  color: var(--color-text-on-dark-muted);
  line-height: 1.9;
}

/* About Strength Grid */
.about-strength__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.about-strength__item {
  padding: var(--spacing-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.about-strength__item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.about-strength__num {
  display: block;
  font-family: var(--font-family-en);
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--color-primary);
  opacity: 0.2;
  line-height: 1;
  margin-bottom: var(--spacing-md);
}

.about-strength__title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.about-strength__desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   News List Styles
   -------------------------------------------------------------------------- */

.news-list {
  max-width: 900px;
  margin: 0 auto;
}

.news-list__item {
  display: grid;
  grid-template-columns: 120px 100px 1fr;
  gap: var(--spacing-lg);
  align-items: center;
  padding: var(--spacing-xl) 0;
  border-bottom: 1px solid var(--color-border-light);
  text-decoration: none;
  transition: background-color var(--transition-fast);
}

.news-list__item:first-child {
  border-top: 1px solid var(--color-border-light);
}

.news-list__item:hover {
  background-color: var(--color-background-alt);
}

.news-list__date {
  font-family: var(--font-family-en);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.news-list__category {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-primary);
  background-color: var(--color-primary-light);
  border-radius: var(--radius-sm);
  text-align: center;
}

.news-list__title {
  font-size: var(--font-size-base);
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   Article Styles (News Detail)
   -------------------------------------------------------------------------- */

.article {
  padding: var(--spacing-2xl) 0;
}

.article__header {
  margin-bottom: var(--spacing-3xl);
  padding-bottom: var(--spacing-2xl);
  border-bottom: 1px solid var(--color-border-light);
}

.article__meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.article__date {
  font-family: var(--font-family-en);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.article__category {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-primary);
  background-color: var(--color-primary-light);
  border-radius: var(--radius-sm);
}

.article__title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  line-height: 1.4;
}

.article__body {
  font-size: var(--font-size-base);
  line-height: 2;
  color: var(--color-text-secondary);
}

.article__body p {
  margin-bottom: var(--spacing-xl);
}

.article__body h2 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text);
  margin-top: var(--spacing-3xl);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--color-primary);
}

.article__body h3 {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-top: var(--spacing-2xl);
  margin-bottom: var(--spacing-md);
}

.article__body ul {
  margin-bottom: var(--spacing-xl);
  padding-left: var(--spacing-xl);
}

.article__body ul li {
  margin-bottom: var(--spacing-sm);
  line-height: 1.8;
}

.article__body strong {
  color: var(--color-text);
  font-weight: 600;
}

.article__cta {
  margin-top: var(--spacing-3xl);
  text-align: center;
}

.article__footer {
  margin-top: var(--spacing-3xl);
  padding-top: var(--spacing-2xl);
  border-top: 1px solid var(--color-border-light);
}

.article__back {
  font-size: var(--font-size-base);
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
}

.article__back:hover {
  text-decoration: underline;
}