/* index.css - 高田商会 ホームページデザインシステム */

/* Google Fonts の読み込み */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;700;900&family=Noto+Sans+JP:wght@400;500;700;900&display=swap');

/* デザイン変数の定義 */
/* デザイン変数の定義 */
:root, [data-theme="light"] {
  /* テーマ識別子 */
  --theme-name: 'light';

  /* カラーパレット (白基調・薄いブルーの背景 - デフォルト) */
  --bg-base: #f0f5fa; /* 洗練された薄いアイスブルー */
  --bg-surface-dark: #ffffff; /* 純白カード・セクション */
  --bg-surface-navy: #e2ebf4; /* ソフトなペールブルーグレー */
  --bg-card: #ffffff;
  --bg-card-hover: #f8fafc;
  --bg-input: #ffffff;
  --header-bg: rgba(240, 245, 250, 0.88);
  --header-bg-scrolled: rgba(240, 245, 250, 0.98);
  --header-shadow-scrolled: 0 10px 30px rgba(148, 163, 184, 0.22), 0 0 15px rgba(191, 149, 63, 0.12);
  --hero-bg: radial-gradient(circle at 80% 20%, #dbeafe 0%, #f0f5fa 70%);
  --hero-glow: radial-gradient(circle, rgba(191, 149, 63, 0.12) 0%, rgba(240, 245, 250, 0) 70%);
  --meishi-bg: linear-gradient(135deg, #e1effe 0%, #ebf3fb 100%);
  --footer-bg: #e2ecf5;
  --info-box-bg: rgba(255, 255, 255, 0.95);

  --text-primary: #0f172a; /* 視認性の高いスレートブラック */
  --text-secondary: #334155; /* 読みやすいクールスレート */
  --text-muted: #64748b;
  --border-color: rgba(15, 23, 42, 0.08);
  --border-gold: rgba(180, 135, 40, 0.28);
  --card-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
  --glass-border: rgba(15, 23, 42, 0.06);

  /* デジタルゴールド (白・薄青背景でも映えるリッチゴールド) */
  --gold-1: #A67C2E;
  --gold-2: #D4AF37;
  --gold-3: #996F1B;
  --gold-4: #E5C158;
  --gold-5: #8C6214;
  --gold-linear: linear-gradient(135deg, #9b6c16 0%, #cfab32 35%, #8f6412 70%, #c4992e 100%);
  --gold-solid: #a3721e;
  
  /* タイポグラフィ */
  --font-japanese: 'Noto Sans JP', sans-serif;
  --font-english: 'Montserrat', sans-serif;
  
  /* 遷移アニメーション用 */
  --transition-smooth: all 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);
  --transition-fast: all 0.3s ease;
  --transition-theme: background-color 0.35s ease, color 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}

/* ダークモード (黒基調 - 切り替え時) */
[data-theme="dark"] {
  --theme-name: 'dark';

  /* カラーパレット (ダークモード - 漆黒基調) */
  --bg-base: #0B0C10; /* 漆黒 (リッチブラック) */
  --bg-surface-dark: #12141C; /* 深いチャコール/ネイビー */
  --bg-surface-navy: #1F2833; /* ディープネイビー */
  --bg-card: #12141C;
  --bg-card-hover: #181b24;
  --bg-input: #0B0C10;
  --header-bg: rgba(11, 12, 16, 0.85);
  --header-bg-scrolled: rgba(11, 12, 16, 0.95);
  --header-shadow-scrolled: 0 10px 30px rgba(0, 0, 0, 0.8), 0 0 15px rgba(191, 149, 63, 0.1);
  --hero-bg: radial-gradient(circle at 80% 20%, rgba(31, 40, 51, 0.6) 0%, rgba(11, 12, 16, 1) 70%);
  --hero-glow: radial-gradient(circle, rgba(191, 149, 63, 0.08) 0%, rgba(0, 0, 0, 0) 70%);
  --meishi-bg: linear-gradient(135deg, #111a2e 0%, #0B0C10 100%);
  --footer-bg: #060709;
  --info-box-bg: rgba(18, 20, 28, 0.7);

  --text-primary: #FFFFFF;
  --text-secondary: #C5C6C7; /* シルバーグレー */
  --text-muted: #8D8F91;
  --border-color: rgba(255, 255, 255, 0.05);
  --border-gold: rgba(191, 149, 63, 0.15);
  --card-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
  --glass-border: rgba(255, 255, 255, 0.03);

  /* デジタルゴールド (グラデーションカラー) */
  --gold-1: #BF953F;
  --gold-2: #FCF6BA;
  --gold-3: #B38728;
  --gold-4: #FBF5B7;
  --gold-5: #AA771C;
  --gold-linear: linear-gradient(135deg, var(--gold-1) 0%, var(--gold-2) 25%, var(--gold-3) 50%, var(--gold-4) 75%, var(--gold-5) 100%);
  --gold-solid: #D4AF37;
}

/* リセットCSS & 基本設定 */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-japanese);
  overflow-x: hidden;
  transition: var(--transition-theme);
}

body {
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-color: var(--bg-base);
  color: var(--text-primary);
  transition: var(--transition-theme);
}

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

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

/* ヘッダー */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: var(--header-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-gold);
  transition: padding 0.3s ease, background 0.3s ease, box-shadow 0.3s ease;
}

header.scrolled {
  padding: 0.6rem 2rem;
  background: var(--header-bg-scrolled);
  box-shadow: var(--header-shadow-scrolled);
}

.header-container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 1.1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  transition: padding 0.3s ease;
}

header.scrolled .header-container {
  padding: 0.3rem 2rem;
}

.logo-wrapper {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  flex-shrink: 0;
  white-space: nowrap;
}

.logo-icon {
  font-family: var(--font-english);
  font-weight: 900;
  font-size: 1.6rem;
  background: var(--gold-linear);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 2px;
}

.logo-text {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-secondary);
  letter-spacing: 1px;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  align-items: center;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 0.3rem 0;
  white-space: nowrap;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--gold-linear);
  transition: var(--transition-fast);
}

.nav-links a:hover {
  color: var(--text-primary);
}

.nav-links a:hover::after {
  width: 100%;
}

.header-cta {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  flex-shrink: 0;
}

/* テーマ切り替えボタン */
.theme-toggle-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(191, 149, 63, 0.1);
  border: 1px solid var(--border-gold);
  color: var(--gold-solid);
  font-size: 1.05rem;
  cursor: pointer;
  transition: var(--transition-fast);
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}

.theme-toggle-btn:hover {
  background: var(--gold-linear);
  color: var(--bg-base);
  transform: scale(1.08) rotate(15deg);
  box-shadow: 0 0 15px rgba(191, 149, 63, 0.35);
}

[data-theme="light"] .theme-toggle-btn {
  background: rgba(163, 114, 30, 0.1);
  border-color: var(--border-gold);
  color: var(--gold-solid);
}

[data-theme="light"] .theme-toggle-btn:hover {
  background: var(--gold-linear);
  color: #ffffff;
}

.btn-header {
  padding: 0.5rem 1rem;
  border-radius: 4px;
  font-size: 0.85rem;
  font-weight: 700;
  border: 1px solid var(--gold-solid);
  background: transparent;
  color: var(--gold-solid);
  cursor: pointer;
  transition: var(--transition-fast);
  white-space: nowrap;
}

.btn-header:hover {
  background: var(--gold-linear);
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 0 15px rgba(212, 175, 55, 0.4);
}

[data-theme="dark"] .btn-header:hover {
  color: var(--bg-base);
}

/* ヒーローセクション */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 8rem 2rem 4rem;
  position: relative;
  overflow: hidden;
  background: var(--hero-bg);
  transition: var(--transition-theme);
}

.hero-background-glow {
  position: absolute;
  top: -10%;
  right: -10%;
  width: 60%;
  height: 60%;
  background: var(--hero-glow);
  z-index: 1;
  pointer-events: none;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.hero-tagline {
  font-family: var(--font-english);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--gold-solid);
  letter-spacing: 4px;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
}

.hero-tagline::before {
  content: '';
  width: 30px;
  height: 1px;
  background-color: var(--gold-solid);
}

.hero-title {
  font-size: 3rem;
  line-height: 1.3;
  font-weight: 900;
  letter-spacing: 2px;
}

.hero-title span {
  background: var(--gold-linear);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  position: relative;
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 540px;
  margin-bottom: 1rem;
}

.hero-ctas {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.btn-primary {
  padding: 1rem 2rem;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--gold-linear);
  color: var(--bg-base);
  box-shadow: 0 4px 20px rgba(191, 149, 63, 0.35);
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

/* 金色の光沢を走らせるアニメーション */
.btn-primary::after {
  content: '';
  position: absolute;
  top: 0;
  left: -150%;
  width: 50%;
  height: 100%;
  background: linear-gradient(90deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.4) 50%, rgba(255,255,255,0) 100%);
  transform: skewX(-25deg);
  transition: 0.75s;
}

.btn-primary:hover::after {
  left: 150%;
  transition: 0.75s;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(191, 149, 63, 0.5);
}

.btn-secondary {
  padding: 1rem 2rem;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1rem;
  background: transparent;
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.2);
  cursor: pointer;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--text-primary);
  transform: translateY(-2px);
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-card-container {
  width: 100%;
  max-width: 420px;
  aspect-ratio: 1.6 / 1;
  position: relative;
  perspective: 1000px;
}

.hero-card-image-wrapper {
  width: 100%;
  height: 100%;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0,0,0,0.6), 0 0 30px rgba(191, 149, 63, 0.15);
  border: 1px solid rgba(191, 149, 63, 0.25);
  transform: rotateY(-10deg) rotateX(10deg);
  transition: var(--transition-smooth);
}

.hero-card-container:hover .hero-card-image-wrapper {
  transform: rotateY(0deg) rotateX(5deg) scale(1.03);
  border-color: rgba(191, 149, 63, 0.6);
  box-shadow: 0 30px 60px rgba(0,0,0,0.7), 0 0 50px rgba(191, 149, 63, 0.3);
}

.hero-card-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 共通セクション設定 */
section {
  padding: 8rem 2rem;
}

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

.section-header {
  text-align: center;
  margin-bottom: 5rem;
}

.section-subtitle {
  font-family: var(--font-english);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--gold-solid);
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 0.8rem;
  display: block;
}

.section-title {
  font-size: 2.3rem;
  font-weight: 900;
  letter-spacing: 1px;
}

/* セクション境界線のきらめき効果 */
.section-divider {
  height: 1px;
  background: linear-gradient(90deg, rgba(191, 149, 63, 0) 0%, rgba(191, 149, 63, 0.4) 50%, rgba(191, 149, 63, 0) 100%);
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

/* 私たちの強み (Why Us) */
.why-us {
  background-color: var(--bg-surface-dark);
  transition: var(--transition-theme);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
  margin-bottom: 5rem;
}

.why-card {
  background-color: var(--bg-base);
  border-radius: 8px;
  padding: 3rem 2.5rem;
  border: 1px solid var(--border-color);
  position: relative;
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  overflow: hidden;
}

[data-theme="light"] .why-card {
  background-color: #f8fafc;
  box-shadow: 0 4px 20px rgba(148, 163, 184, 0.12);
}

.why-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gold-linear);
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition-fast);
}

.why-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-gold);
  box-shadow: var(--card-shadow);
}

.why-card:hover::before {
  transform: scaleX(1);
}

.why-icon {
  width: 60px;
  height: 60px;
  border-radius: 50px;
  background: rgba(191, 149, 63, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold-solid);
  font-size: 1.6rem;
  font-weight: 700;
}

.why-card-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-primary);
}

.why-card-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* 素材紹介サブセクション */
.materials-wrapper {
  margin-top: 6rem;
  background-color: var(--bg-surface-navy);
  border-radius: 12px;
  padding: 4rem;
  border: 1px solid var(--border-gold);
  transition: var(--transition-theme);
}

.materials-header {
  margin-bottom: 3rem;
  text-align: center;
}

.materials-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 3rem;
  align-items: center;
}

.materials-cards {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.material-item {
  display: flex;
  gap: 1.5rem;
  padding: 1.5rem;
  border-radius: 8px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: var(--transition-fast);
}

[data-theme="light"] .material-item {
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
}

.material-item.active, .material-item:hover {
  background-color: rgba(191, 149, 63, 0.08);
  border-color: var(--border-gold);
}

.material-num {
  font-family: var(--font-english);
  font-weight: 700;
  color: var(--gold-solid);
}

.material-detail h4 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
  color: var(--text-primary);
}

.material-detail p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.material-showcase {
  position: relative;
  aspect-ratio: 4 / 3;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border-gold);
  box-shadow: var(--card-shadow);
}

.material-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.5s ease;
  z-index: 1;
}

.material-img.active {
  opacity: 1;
  z-index: 2;
}

/* 対応プロダクト (Products) */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}

.product-card {
  background-color: var(--bg-surface-dark);
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: var(--transition-smooth);
  box-shadow: var(--card-shadow);
}

.product-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-gold);
  box-shadow: 0 15px 35px rgba(191, 149, 63, 0.18), var(--card-shadow);
}

.product-img-wrapper {
  aspect-ratio: 1.5;
  overflow: hidden;
  background-color: #17181c;
  position: relative;
}

[data-theme="light"] .product-img-wrapper {
  background-color: #e2e8f0;
}

.product-img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.product-card:hover .product-img-wrapper img {
  transform: scale(1.08);
}

.product-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  padding: 0.3rem 0.8rem;
  font-family: var(--font-english);
  font-weight: 700;
  font-size: 0.75rem;
  background: var(--gold-linear);
  color: #ffffff;
  border-radius: 4px;
  letter-spacing: 1px;
  z-index: 5;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

[data-theme="dark"] .product-badge {
  color: var(--bg-base);
}

.product-info {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  flex-grow: 1;
}

.product-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.product-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  flex-grow: 1;
}

.product-link {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--gold-solid);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.5rem;
  align-self: flex-start;
}

.product-link span {
  transition: var(--transition-fast);
}

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

/* 花一輪のフューチャードカード（全幅表示） */
@media (min-width: 1025px) {
  .product-card-featured {
    grid-column: span 3;
    display: grid !important;
    grid-template-columns: 1.2fr 1fr;
  }
  
  .product-card-featured .product-img-wrapper {
    aspect-ratio: auto;
    height: 100%;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .product-card-featured {
    grid-column: span 2;
    display: grid !important;
    grid-template-columns: 1.1fr 1fr;
  }
  
  .product-card-featured .product-img-wrapper {
    aspect-ratio: auto;
    height: 100%;
  }
}


/* 名刺受注サイトへの誘導 (Meishi CTA) */
.meishi-cta {
  background: var(--meishi-bg);
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--border-gold);
  border-bottom: 1px solid var(--border-gold);
  transition: var(--transition-theme);
}

.meishi-cta::before {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(191, 149, 63, 0.08) 0%, rgba(0,0,0,0) 70%);
  top: -250px;
  left: -250px;
  pointer-events: none;
}

.meishi-cta-container {
  max-width: 1000px;
  margin: 0 auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  position: relative;
  z-index: 2;
}

.meishi-cta-title {
  font-size: 2.5rem;
  font-weight: 900;
  line-height: 1.4;
  color: var(--text-primary);
}

.meishi-cta-title span {
  background: var(--gold-linear);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.meishi-cta-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 680px;
  line-height: 1.8;
}

.meishi-cta-features {
  display: flex;
  gap: 2.5rem;
  margin: 1rem 0;
  flex-wrap: wrap;
  justify-content: center;
}

.meishi-feature {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
}

.meishi-feature i {
  color: var(--gold-solid);
}

/* お問い合わせ・会社概要 (Contact & Company) */
.contact-company {
  background-color: var(--bg-base);
  padding: 6rem 0;
  transition: var(--transition-theme);
}

.contact-company-grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 4rem;
}

.company-info {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.company-title {
  font-size: 2rem;
  font-weight: 700;
  position: relative;
  padding-bottom: 0.8rem;
  color: var(--text-primary);
}

.company-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 50px;
  height: 2px;
  background: var(--gold-linear);
}

/* タブナビゲーション */
.company-tabs-nav {
  display: flex;
  gap: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0px;
  margin-bottom: 1.5rem;
}

.tab-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-japanese);
  font-size: 1rem;
  font-weight: 700;
  padding: 0.8rem 0.2rem;
  cursor: pointer;
  position: relative;
  transition: var(--transition-fast);
}

.tab-btn:hover {
  color: var(--gold-solid);
}

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

.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gold-linear);
  box-shadow: 0 0 10px rgba(191, 149, 63, 0.5);
}

/* タブパネルと切り替え */
.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
  animation: tabFadeIn 0.5s cubic-bezier(0.25, 0.8, 0.25, 1) forwards;
}

@keyframes tabFadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 1. 会社概要 (Profile) */
.profile-layout {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.profile-table {
  width: 100%;
  border-collapse: collapse;
}

.profile-table tr {
  border-bottom: 1px solid var(--border-color);
}

.profile-table tr:last-child {
  border-bottom: none;
}

.profile-table th {
  width: 28%;
  text-align: left;
  padding: 1rem 0.5rem 1rem 0;
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 700;
  vertical-align: top;
  border-right: 1px solid var(--border-color);
}

.profile-table td {
  padding: 1rem 0.5rem 1rem 1.5rem;
  color: var(--text-primary);
  font-size: 0.95rem;
  vertical-align: top;
  line-height: 1.6;
}

.map-link, .phone-link {
  color: var(--gold-solid);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.3rem;
  transition: var(--transition-fast);
}

.map-link:hover, .phone-link:hover {
  text-decoration: underline;
  color: var(--text-primary);
}

.desc-note {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: inline-block;
  margin-top: 0.2rem;
}

.profile-media {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 1.5rem;
}

.company-image-wrapper, .google-map-wrapper {
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--border-gold);
  box-shadow: var(--card-shadow);
  background-color: var(--bg-surface-dark);
}

.company-image-wrapper img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.company-image-wrapper:hover img {
  transform: scale(1.05);
}

.google-map-wrapper iframe {
  display: block;
  opacity: 0.9;
  transition: var(--transition-fast);
}

.google-map-wrapper:hover iframe {
  opacity: 1;
}

/* 2. 代表ご挨拶 (Greeting) */
.greeting-layout {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2rem;
  align-items: start;
}

.greeting-text {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

.greeting-text p {
  margin-bottom: 1.2rem;
}

.greeting-highlight {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  background: var(--gold-linear);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 1.5rem !important;
}

.greeting-signature {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  border-top: 1px solid var(--border-color);
  padding-top: 1rem;
}

.greeting-signature .comp-name {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.greeting-signature .sign-title {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.greeting-signature .sign-name {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 2px;
  margin-top: 0.2rem;
}

.greeting-visual {
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--border-gold);
  box-shadow: var(--card-shadow);
}

.greeting-visual img {
  width: 100%;
  height: 250px;
  object-fit: cover;
}

/* 3. 沿革 (History) */
.timeline-container {
  position: relative;
  padding-left: 2rem;
  margin: 1rem 0;
}

.timeline-line {
  position: absolute;
  left: 6px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(to bottom, var(--gold-solid) 0%, rgba(191, 149, 63, 0.1) 100%);
}

.timeline-item {
  position: relative;
  margin-bottom: 2.2rem;
}

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

.timeline-badge {
  position: absolute;
  left: -2.35rem;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background-color: var(--bg-base);
  border: 2px solid var(--gold-solid);
  box-shadow: 0 0 8px rgba(191, 149, 63, 0.6);
  z-index: 2;
  transition: var(--transition-fast);
}

.timeline-item:hover .timeline-badge {
  background-color: var(--gold-solid);
  transform: scale(1.25);
  box-shadow: 0 0 12px var(--gold-solid);
}

.timeline-content {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 1.2rem;
  border-radius: 6px;
  transition: var(--transition-fast);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
}

.timeline-item:hover .timeline-content {
  background-color: var(--bg-card-hover);
  border-color: var(--border-gold);
}

.timeline-year {
  font-family: var(--font-english);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--gold-solid);
  margin-bottom: 0.5rem;
}

.timeline-content p {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.timeline-subtext {
  margin-top: 0.6rem;
  color: var(--text-muted) !important;
  font-size: 0.85rem !important;
  border-left: 2px solid var(--border-gold);
  padding-left: 0.6rem;
}

.timeline-list {
  margin-top: 0.6rem;
  padding-left: 1.2rem;
  list-style-type: square;
}

.timeline-list li {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0.2rem;
}


.contact-form-wrapper {
  background-color: var(--bg-surface-dark);
  border-radius: 8px;
  padding: 3rem;
  border: 1px solid var(--border-gold);
  box-shadow: var(--card-shadow);
  transition: var(--transition-theme);
}

.form-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.form-group {
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-secondary);
}

.form-control {
  width: 100%;
  padding: 0.8rem 1rem;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--gold-solid);
  box-shadow: 0 0 10px rgba(191, 149, 63, 0.25);
}

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

.btn-form-submit {
  width: 100%;
  padding: 1rem;
  background: var(--gold-linear);
  color: #ffffff;
  font-weight: 700;
  font-size: 1rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(191, 149, 63, 0.25);
  transition: var(--transition-fast);
}

[data-theme="dark"] .btn-form-submit {
  color: var(--bg-base);
}

.btn-form-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(191, 149, 63, 0.4);
}

/* フッター */
footer {
  background-color: var(--footer-bg);
  padding: 4rem 2rem;
  border-top: 1px solid var(--border-color);
  transition: var(--transition-theme);
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

.footer-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.footer-nav {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  justify-content: center;
  list-style: none;
}

.footer-nav a {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.footer-nav a:hover {
  color: var(--gold-solid);
}

.copyright {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* アニメーション用クラス */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* レスポンシブデザインの調整 */
@media (max-width: 1280px) {
  .header-container {
    padding: 0.9rem 1.2rem;
    gap: 0.8rem;
  }
  
  .nav-links {
    gap: 0.9rem;
  }
  
  .nav-links a {
    font-size: 0.84rem;
  }
  
  .logo-icon {
    font-size: 1.4rem;
  }
  
  .logo-text {
    font-size: 0.7rem;
  }
  
  .btn-header {
    padding: 0.45rem 0.75rem;
    font-size: 0.78rem;
  }

  .theme-toggle-btn {
    width: 34px;
    height: 34px;
    font-size: 0.95rem;
  }
}

@media (max-width: 1120px) {
  .header-container {
    padding: 0.8rem 1rem;
    gap: 0.5rem;
  }
  
  .nav-links {
    gap: 0.6rem;
  }
  
  .nav-links a {
    font-size: 0.78rem;
  }
  
  .logo-text {
    display: none; /* 幅が狭い画面ではTAKATAロゴのみにしてスペース確保 */
  }

  .btn-header {
    padding: 0.4rem 0.65rem;
    font-size: 0.75rem;
  }
}

@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    gap: 3rem;
    text-align: center;
  }
  
  .hero-content {
    align-items: center;
  }
  
  .hero-desc {
    margin: 0 auto 1rem;
  }
  
  .hero-ctas {
    justify-content: center;
  }
  
  .why-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .contact-company-grid {
    grid-template-columns: 1fr;
    gap: 4rem;
  }
  
  .materials-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .material-showcase {
    order: -1;
  }
  
  /* 会社概要レスポンシブ */
  .profile-media {
    grid-template-columns: 1fr;
  }
  
  .greeting-layout {
    grid-template-columns: 1fr;
  }
  
  .greeting-visual {
    order: -1; /* モバイルでは画像をご挨拶テキストの上に置く */
  }
  
  .greeting-visual img {
    height: 200px;
  }
}

@media (max-width: 768px) {
  html {
    font-size: 14px;
  }
  
  .header-container {
    padding: 1rem;
  }
  
  .nav-links {
    display: none; /* スマホ用ハンバーガーメニューはシンプル化のためヘッダーのCTAのみに絞る */
  }
  
  .logo-icon {
    font-size: 1.3rem;
  }
  
  .logo-text {
    font-size: 0.65rem;
  }
  
  .header-cta {
    gap: 0.5rem;
  }
  
  .btn-header {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
  }
  
  .hero-title {
    font-size: 2.2rem;
  }
  
  .why-grid {
    grid-template-columns: 1fr;
  }
  
  .products-grid {
    grid-template-columns: 1fr;
  }
  
  .materials-wrapper {
    padding: 2rem;
  }
  
  .meishi-cta-title {
    font-size: 1.8rem;
  }
  
  .contact-form-wrapper {
    padding: 1.5rem;
  }

  /* モバイル用の会社情報タブとテーブル調整 */
  .company-tabs-nav {
    gap: 0.5rem;
  }
  
  .tab-btn {
    font-size: 0.9rem;
    padding: 0.6rem 0.1rem;
    flex: 1;
    text-align: center;
  }
  
  .profile-table tr {
    display: flex;
    flex-direction: column;
    padding: 0.8rem 0;
  }
  
  .profile-table th {
    width: 100%;
    padding: 0 0 0.3rem 0;
    border-right: none;
    font-size: 0.85rem;
  }
  
  .profile-table td {
    width: 100%;
    padding: 0;
    font-size: 0.9rem;
  }
  
  .timeline-container {
    padding-left: 1.5rem;
  }
  
  .timeline-content {
    padding: 1rem;
  }
}

/* スクロールによる金色の煌めき疑似体験CSSアニメーション */
.gold-sparkle-bg {
  position: relative;
  overflow: hidden;
}

.gold-sparkle-bg::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(252, 246, 186, 0) 30%, rgba(252, 246, 186, 0.08) 50%, rgba(252, 246, 186, 0) 70%);
  background-size: 200% 200%;
  pointer-events: none;
  z-index: 1;
  animation: shine-scroll 8s infinite linear;
}

@keyframes shine-scroll {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

/* ==========================================================================
   香りと紙のコラボレーション（アロマカード）専用ページスタイル
   ========================================================================== */

/* ヒーローセクション */
.aroma-hero {
  position: relative;
  padding: 12rem 0 8rem 0;
  background-color: var(--bg-base);
  overflow: hidden;
  transition: var(--transition-theme);
}

.aroma-hero-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--padding-container);
  position: relative;
  z-index: 10;
  text-align: center;
}

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

.aroma-hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 2rem;
  color: var(--text-primary);
}

.aroma-hero-title span {
  background: var(--gold-linear);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.aroma-hero-desc {
  font-size: 1.15rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

/* アロマ詳細特長 */
.aroma-features {
  padding: 6rem 0;
  background-color: var(--bg-surface-dark);
  transition: var(--transition-theme);
}

.aroma-details-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 4rem;
  align-items: center;
}

.aroma-details-text h3 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.aroma-details-text p {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.aroma-features-list {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.aroma-features-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.aroma-features-list li i {
  color: var(--gold-solid);
  font-size: 1.1rem;
  margin-top: 0.2rem;
}

.aroma-details-highlight {
  background: linear-gradient(135deg, rgba(191, 149, 63, 0.08) 0%, var(--bg-surface-navy) 100%);
  border-radius: 12px;
  padding: 2.5rem;
  border: 1px solid var(--border-gold);
  box-shadow: var(--card-shadow);
}

.highlight-box h4 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--gold-solid);
}

.highlight-box p {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

/* 導入実績グリッド */
.aroma-works {
  padding: 6rem 0;
  background-color: var(--bg-base);
  transition: var(--transition-theme);
}

.aroma-works-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 3rem;
}

.aroma-work-card {
  background-color: var(--bg-surface-dark);
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: var(--transition-smooth);
  box-shadow: var(--card-shadow);
}

.aroma-work-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-gold);
  box-shadow: 0 15px 35px rgba(191, 149, 63, 0.15), var(--card-shadow);
}

.aroma-work-card .work-img-wrapper {
  aspect-ratio: 1.5;
  overflow: hidden;
  background-color: #17181c;
}

[data-theme="light"] .aroma-work-card .work-img-wrapper {
  background-color: #e2e8f0;
}

.aroma-work-card .work-img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.aroma-work-card:hover .work-img-wrapper img {
  transform: scale(1.05);
}

.aroma-work-card .work-info {
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  flex-grow: 1;
}

.work-tag {
  align-self: flex-start;
  font-family: var(--font-english);
  font-weight: 700;
  font-size: 0.75rem;
  padding: 0.25rem 0.6rem;
  background-color: rgba(191, 149, 63, 0.12);
  color: var(--gold-solid);
  border-radius: 4px;
  letter-spacing: 0.5px;
}

.work-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-primary);
}

.work-desc {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-secondary);
  flex-grow: 1;
}

.work-link {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--gold-solid);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 1rem;
  align-self: flex-start;
}

.work-link span {
  transition: var(--transition-fast);
}

.aroma-work-card:hover .work-link span {
  transform: translateX(4px);
}

/* ユースケース (名刺・その他) */
.aroma-usecases {
  padding: 6rem 0;
  background-color: var(--bg-surface-dark);
  transition: var(--transition-theme);
}

.usecase-highlight {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 4rem;
  align-items: center;
}

.usecase-img {
  aspect-ratio: 1.33;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--border-gold);
}

.usecase-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.usecase-content h3 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.usecase-content p {
  font-size: 1.02rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
}

.usecase-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
}

.usecase-item h4 {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0.6rem 0 0.4rem 0;
  color: var(--text-primary);
}

.usecase-item i {
  font-size: 1.6rem;
  color: var(--gold-solid);
}

.usecase-item p {
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--text-secondary);
  margin: 0;
}

/* アロマCTA */
.aroma-cta {
  padding: 8rem 0;
  text-align: center;
  background: var(--meishi-bg);
  border-top: 1px solid var(--border-gold);
  transition: var(--transition-theme);
}

.aroma-cta h2 {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.aroma-cta h2 span {
  background: var(--gold-linear);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.aroma-cta p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
}

/* レスポンシブ */
@media (max-width: 1024px) {
  .aroma-hero-title {
    font-size: 2.8rem;
  }
  
  .aroma-details-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .aroma-works-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  
  .usecase-highlight {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}

@media (max-width: 768px) {
  .aroma-hero-title {
    font-size: 2.2rem;
  }
  
  .usecase-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

/* 花一輪 ギャラリーグリッド */
.hana-gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

@media (max-width: 1024px) {
  .hana-gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
}

@media (max-width: 576px) {
  .hana-gallery-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .logo-text {
    display: none;
  }
  
  .btn-header {
    padding: 0.35rem 0.6rem;
    font-size: 0.75rem;
  }
}

/* 会社情報のみ表示（1カラム）時のスタイル */
.company-info-only {
  max-width: 900px;
  margin: 0 auto;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* お問い合わせページ専用スタイル */
.contact-hero {
  padding: 10rem 2rem 5rem;
  position: relative;
  overflow: hidden;
  background: var(--hero-bg);
  text-align: center;
  transition: var(--transition-theme);
}

.contact-hero-container {
  max-width: 800px;
  margin: 0 auto;
}

.contact-hero-title {
  font-size: 3.2rem;
  font-weight: 700;
  margin-top: 1rem;
  margin-bottom: 1.5rem;
  background: var(--gold-linear);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 2px;
}

.contact-hero-desc {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

.contact-form-section {
  padding: 4rem 0 8rem;
  background-color: var(--bg-base);
  transition: var(--transition-theme);
}

.contact-page-form-wrapper {
  max-width: 700px;
  margin: 0 auto;
  background-color: var(--bg-surface-dark);
  border-radius: 8px;
  padding: 3.5rem;
  border: 1px solid var(--border-gold);
  box-shadow: var(--card-shadow);
  transition: var(--transition-theme);
}

@media (max-width: 768px) {
  .contact-hero {
    padding: 7rem 1rem 3.5rem;
  }
  .contact-hero-title {
    font-size: 2.4rem;
  }
  .contact-page-form-wrapper {
    padding: 2.5rem 1.5rem;
  }
}

/* 3カラム用ギャラリーグリッド (レスポンシブ対応) */
.gallery-3cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

@media (max-width: 1024px) {
  .gallery-3cols {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
}

@media (max-width: 768px) {
  .gallery-3cols {
    grid-template-columns: 1fr;
  }
}

/* メリット図などの割合調整クラス (レスポンシブ対応) */
.diagram-highlight {
  grid-template-columns: 1.2fr 1fr;
}

@media (max-width: 1024px) {
  .diagram-highlight {
    grid-template-columns: 1fr;
  }
}

/* お知らせセクション (Information) スタイル */
.info-section {
  padding: 1.5rem 0 5rem;
  background-color: var(--bg-base);
  position: relative;
  transition: var(--transition-theme);
}

.info-box {
  max-width: 1000px;
  margin: 1.5rem auto 0;
  background-color: var(--info-box-bg);
  border-radius: 12px;
  border: 1px solid var(--border-gold);
  box-shadow: var(--card-shadow);
  padding: 2.5rem 3.5rem;
  transition: var(--transition-theme);
}

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

.info-item {
  display: flex;
  align-items: flex-start;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border-color);
  gap: 2.5rem;
}

.info-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.info-item:first-child {
  padding-top: 0;
}

.info-date {
  color: var(--gold-solid);
  font-weight: 700;
  font-family: var(--font-english);
  font-size: 1.05rem;
  letter-spacing: 1px;
  white-space: nowrap;
  min-width: 110px;
}

.info-text {
  color: var(--text-primary);
  font-size: 0.98rem;
  line-height: 1.8;
  flex-grow: 1;
}

/* スマホ表示対応 */
@media (max-width: 768px) {
  .info-box {
    margin: 2rem 1.5rem 0;
    padding: 2rem 1.8rem;
  }
  
  .info-item {
    flex-direction: column;
    gap: 0.5rem;
    padding: 1.2rem 0;
  }
  
  .info-date {
    min-width: auto;
    font-size: 0.95rem;
  }
  
  .info-text {
    font-size: 0.92rem;
  }
}