/* ============================================================
   ITAMS株式会社 Webサイト - メインスタイルシート
   ============================================================ */

/* ============================================================
   1. CSS カスタムプロパティ（変数）
   ============================================================ */
:root {
  /* プライマリカラー（ネイビー） */
  --color-navy-900:    #0B1729;
  --color-navy-800:    #102040;
  --color-navy-700:    #163256;
  --color-navy-500:    #1E4D8C;
  --color-navy-200:    #C5D5EA;
  --color-navy-50:     #EEF3FA;

  /* アクセントカラー（アンバー） */
  --color-amber-600:   #D4580A;
  --color-amber-500:   #E8690F;
  --color-amber-100:   #FDEBD8;
  --color-amber-50:    #FFF5EC;

  /* テキストカラー */
  --color-text-primary:   #0F1623;
  --color-text-secondary: #3D4C62;
  --color-text-muted:     #6B7B8D;
  --color-text-inverse:   #FFFFFF;

  /* ニュートラル */
  --color-white:    #FFFFFF;
  --color-gray-50:  #F7F8FA;
  --color-gray-100: #ECEEF2;
  --color-gray-200: #D4D8DF;
  --color-gray-400: #9AA3AF;

  /* セマンティックカラー */
  --color-success: #1A7F5A;
  --color-warning: #C87D0E;
  --color-error:   #C0392B;

  /* フォント */
  --font-jp:   'Noto Sans JP', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', sans-serif;
  --font-en:   'Inter', 'DM Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* タイポグラフィスケール */
  --text-display: clamp(2.25rem, 4vw, 3.5rem);
  --text-h1:      clamp(1.875rem, 3vw, 2.75rem);
  --text-h2:      clamp(1.5rem, 2.5vw, 2rem);
  --text-h3:      clamp(1.125rem, 1.5vw, 1.375rem);
  --text-h4:      1.125rem;
  --text-lg:      1.125rem;
  --text-base:    1rem;
  --text-sm:      0.875rem;
  --text-xs:      0.75rem;

  /* 行間 */
  --leading-tight:  1.3;
  --leading-normal: 1.6;
  --leading-loose:  1.9;

  /* レイアウト */
  --container-max:     1200px;
  --container-padding: clamp(1rem, 5vw, 3rem);

  /* 共通トランジション */
  --transition-fast: 0.15s ease;
  --transition-base: 0.2s ease;
  --transition-slow: 0.3s ease;
}

/* ============================================================
   2. リセット / ベース
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-jp);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text-primary);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* フォーカスインジケーター */
:focus-visible {
  outline: 3px solid var(--color-amber-500);
  outline-offset: 3px;
}

/* スクリーンリーダー専用 */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* ============================================================
   3. レイアウト・コンテナ
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section {
  padding: 5rem 0;
}

.section--gray {
  background-color: var(--color-gray-50);
}

.section--navy {
  background-color: var(--color-navy-800);
}

.section--dark {
  background-color: var(--color-navy-900);
}

.section--amber {
  background-color: var(--color-amber-50);
  border-top: 4px solid var(--color-amber-600);
}

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

.section-header h2 {
  font-size: var(--text-h2);
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: var(--leading-tight);
  margin-bottom: 1rem;
}

.section-header--light h2 {
  color: var(--color-white);
}

.section-header p {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  max-width: 640px;
  margin: 0 auto;
  line-height: var(--leading-normal);
}

.section-header--light p {
  color: var(--color-navy-200);
}

/* グリッド */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }

/* ============================================================
   4. ヘッダー
   ============================================================ */
.site-header {
  background: var(--color-navy-800);
  height: 64px;
  padding: 0 var(--container-padding);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  transition: background var(--transition-slow);
}

.site-header.transparent {
  background: transparent;
}

.site-header.scrolled {
  background: var(--color-navy-800);
}

.header-inner {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

/* ロゴ */
.site-logo {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
  text-decoration: none;
  flex-shrink: 0;
}

.site-logo .logo-main {
  font-family: var(--font-en);
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.02em;
}

.site-logo .logo-sub {
  font-family: var(--font-jp);
  font-size: 0.625rem;
  font-weight: 500;
  color: var(--color-navy-200);
  letter-spacing: 0.08em;
}

/* グローバルナビ */
.global-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.global-nav a,
.nav-dropdown-trigger {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-navy-200);
  padding: 0.5rem 0.875rem;
  border-radius: 4px;
  transition: color var(--transition-base), background var(--transition-base);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-jp);
  white-space: nowrap;
  position: relative;
}

.global-nav a:hover,
.nav-dropdown-trigger:hover {
  color: var(--color-white);
}

.nav-dropdown-trigger .nav-arrow {
  font-size: 0.75rem;
  transition: transform var(--transition-base);
}

.nav-dropdown-trigger.open .nav-arrow {
  transform: rotate(180deg);
}

/* ドロップダウン */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 0;
  background: var(--color-navy-900);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  width: 280px;
  padding: 0.5rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
  z-index: 100;
}

.nav-dropdown.open .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dropdown-item {
  display: block;
  padding: 0.75rem 1rem;
  border-radius: 6px;
  border-left: 3px solid transparent;
  transition: background var(--transition-base), border-color var(--transition-base);
}

.nav-dropdown-item:hover {
  background: rgba(255, 255, 255, 0.05);
  border-left-color: var(--color-amber-600);
}

.nav-dropdown-item .item-name {
  display: block;
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 0.2rem;
}

.nav-dropdown-item .item-desc {
  display: block;
  font-size: 0.75rem;
  color: var(--color-navy-200);
}

/* ヘッダーCTA */
.header-cta {
  background: var(--color-amber-600);
  color: var(--color-white) !important;
  padding: 0.5rem 1.25rem !important;
  border-radius: 4px !important;
  font-weight: 700 !important;
  font-size: var(--text-sm) !important;
  transition: background var(--transition-base) !important;
  white-space: nowrap;
}

.header-cta:hover {
  background: var(--color-amber-500) !important;
  color: var(--color-white) !important;
}

/* ハンバーガー */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.hamburger-line {
  width: 24px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.hamburger.open .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger.open .hamburger-line:nth-child(2) {
  opacity: 0;
}
.hamburger.open .hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* モバイルドロワー */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: 280px;
  height: 100vh;
  background: var(--color-navy-900);
  z-index: 2000;
  padding: 5rem 1.5rem 2rem;
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.mobile-drawer.open {
  transform: translateX(0);
}

.drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1999;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.drawer-overlay.open {
  opacity: 1;
  visibility: visible;
}

.drawer-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  color: var(--color-white);
  font-size: 1.5rem;
  padding: 0.5rem;
}

.mobile-nav a {
  display: block;
  padding: 0.875rem 0;
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-navy-200);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: color var(--transition-base);
}

.mobile-nav a:hover {
  color: var(--color-white);
}

.mobile-nav .mobile-section-label {
  display: block;
  padding: 1rem 0 0.5rem;
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-navy-200);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.mobile-nav .sub-link {
  padding-left: 1rem;
  font-size: var(--text-sm);
}

.drawer-cta {
  margin-top: auto;
  padding-top: 2rem;
}

.drawer-cta .btn-primary {
  width: 100%;
  text-align: center;
  justify-content: center;
}

/* ============================================================
   5. ボタン
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  border-radius: 4px;
  font-size: 1rem;
  font-weight: 700;
  font-family: var(--font-jp);
  text-decoration: none;
  transition: background var(--transition-base), transform var(--transition-fast), box-shadow var(--transition-base);
  min-height: 48px;
  cursor: pointer;
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-amber-600);
  color: var(--color-white);
  border-color: var(--color-amber-600);
  box-shadow: 0 2px 8px rgba(212, 88, 10, 0.35);
}

.btn-primary:hover {
  background: var(--color-amber-500);
  border-color: var(--color-amber-500);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(212, 88, 10, 0.45);
  color: var(--color-white);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-outline {
  background: transparent;
  color: var(--color-navy-700);
  border-color: var(--color-navy-500);
}

.btn-outline:hover {
  background: var(--color-navy-700);
  color: var(--color-white);
  border-color: var(--color-navy-700);
}

.btn-outline-white {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.5);
}

.btn-outline-white:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-white);
  color: var(--color-white);
}

.btn-sm {
  padding: 0.625rem 1.25rem;
  font-size: var(--text-sm);
  min-height: 40px;
}

.btn-lg {
  padding: 1.125rem 2.5rem;
  font-size: 1.0625rem;
  min-height: 56px;
}

.btn-full {
  width: 100%;
}

.link-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  color: var(--color-navy-700);
  font-weight: 600;
  font-size: var(--text-sm);
  border-bottom: 2px solid var(--color-amber-600);
  padding-bottom: 1px;
  transition: color var(--transition-base), gap var(--transition-base);
  text-decoration: none;
}

.link-cta:hover {
  color: var(--color-amber-600);
  gap: 0.625rem;
}

/* フローティングCTA（スマホ専用） */
.floating-cta {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 900;
  background: var(--color-amber-600);
  color: var(--color-white);
  padding: 1rem 2rem;
  border-radius: 50px;
  font-weight: 700;
  font-size: 0.9375rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  white-space: nowrap;
  display: none;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  transition: opacity var(--transition-base), transform var(--transition-base), background var(--transition-base);
}

.floating-cta:hover {
  background: var(--color-amber-500);
  color: var(--color-white);
}

.floating-cta.hidden {
  opacity: 0;
  transform: translateX(-50%) translateY(1rem);
  pointer-events: none;
}

/* ============================================================
   6. バッジ
   ============================================================ */
.badge-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  background: var(--color-navy-700);
  color: var(--color-navy-200);
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.3rem 0.75rem;
  border-radius: 4px;
  letter-spacing: 0.03em;
  white-space: nowrap;
}

.badge--amber {
  background: var(--color-amber-100);
  color: var(--color-amber-600);
}

.badge--sm {
  font-size: 0.65rem;
  padding: 0.2rem 0.5rem;
}

/* カテゴリタグ */
.tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  padding: 0.2rem 0.5rem;
  border-radius: 3px;
}

.tag-oracle  { background: #FFF0E8; color: #B84800; }
.tag-vmware  { background: #E8F0FF; color: #1A4A9C; }
.tag-ibm     { background: #E8F4FF; color: #0053B3; }
.tag-itam    { background: #E8FAF0; color: #0F7A4A; }
.tag-finops  { background: #F0E8FF; color: #6B21B0; }
.tag-tools   { background: #F5F5F5; color: #4A4A4A; }
.tag-trends  { background: #F0F7FF; color: #1A5A9C; }

/* ============================================================
   7. パンくずナビ
   ============================================================ */
.breadcrumb {
  background: var(--color-navy-800);
  padding: 0.75rem var(--container-padding);
  font-size: var(--text-xs);
  color: var(--color-navy-200);
}

.breadcrumb-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.25rem;
}

.breadcrumb a {
  color: var(--color-navy-200);
  transition: color var(--transition-base);
}

.breadcrumb a:hover {
  color: var(--color-white);
}

.breadcrumb-sep {
  margin: 0 0.25rem;
  opacity: 0.5;
}

.breadcrumb-current {
  color: var(--color-white);
}

/* ============================================================
   8. ページヒーロー（下層ページ共通）
   ============================================================ */
.page-hero {
  background: linear-gradient(135deg, var(--color-navy-900) 0%, var(--color-navy-700) 100%);
  padding: 4rem var(--container-padding);
  min-height: 280px;
  display: flex;
  align-items: center;
}

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

.page-hero h1 {
  font-size: var(--text-h1);
  font-weight: 900;
  color: var(--color-white);
  max-width: 800px;
  line-height: var(--leading-tight);
  margin-bottom: 1rem;
}

.page-hero .lead {
  font-size: var(--text-lg);
  color: var(--color-navy-200);
  max-width: 640px;
  line-height: var(--leading-normal);
  margin-bottom: 1.5rem;
}

.page-hero .sub-catch {
  font-size: var(--text-sm);
  color: var(--color-amber-500);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
  display: block;
}

/* ============================================================
   9. カード
   ============================================================ */

/* サービスカード */
.service-card {
  background: var(--color-white);
  border-radius: 8px;
  padding: 2rem;
  border: 1px solid var(--color-gray-100);
  border-top: 4px solid var(--color-navy-700);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-top-color var(--transition-base);
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.10);
  border-top-color: var(--color-amber-600);
}

.service-card-tag {
  display: inline-block;
  background: var(--color-navy-50);
  color: var(--color-navy-700);
  font-size: var(--text-xs);
  font-weight: 600;
  padding: 0.25rem 0.625rem;
  border-radius: 3px;
  margin-bottom: 1rem;
  letter-spacing: 0.05em;
}

.service-card h3 {
  font-size: var(--text-h4);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 0.75rem;
  line-height: 1.4;
}

.service-card p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 1.25rem;
  flex: 1;
}

.service-card-price {
  font-family: var(--font-en);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-navy-700);
  margin-bottom: 1.25rem;
}

.service-card .link-cta {
  margin-top: auto;
}

/* 実績カード */
.case-card {
  background: var(--color-white);
  border-radius: 8px;
  border: 1px solid var(--color-gray-100);
  overflow: hidden;
  transition: box-shadow var(--transition-base);
}

.case-card:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.case-card-header {
  background: var(--color-navy-50);
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--color-gray-100);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.case-card-tag {
  background: var(--color-navy-800);
  color: var(--color-white);
  font-size: var(--text-xs);
  font-weight: 600;
  padding: 0.25rem 0.625rem;
  border-radius: 3px;
}

.case-card-client {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  font-weight: 500;
}

.case-card-body {
  padding: 1.5rem;
}

.case-card-result {
  font-family: var(--font-en);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-amber-600);
  margin-bottom: 0.5rem;
}

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

/* ナレッジ記事カード */
.article-card {
  background: var(--color-white);
  border-radius: 8px;
  border: 1px solid var(--color-gray-100);
  padding: 1.5rem;
  transition: box-shadow var(--transition-base);
  display: flex;
  flex-direction: column;
}

.article-card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.article-card h3 {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 0.5rem;
  line-height: 1.5;
}

.article-card p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
  flex: 1;
}

.article-card-meta {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: 1rem;
}

/* USPカード */
.usp-card {
  padding: 2rem 1.5rem;
  border-top: 3px solid var(--color-gray-100);
  transition: border-color var(--transition-base);
}

.usp-card:hover {
  border-top-color: var(--color-amber-600);
}

.usp-number {
  font-family: var(--font-en);
  font-size: 3rem;
  font-weight: 900;
  color: var(--color-navy-200);
  line-height: 1;
  margin-bottom: 0.75rem;
}

.usp-title {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 0.75rem;
}

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

/* 実績数値カード */
.achievement-card {
  border-left: 4px solid var(--color-amber-600);
  padding: 1.5rem 1.5rem 1.5rem 1.75rem;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 0 8px 8px 0;
}

.achievement-label {
  font-size: var(--text-xs);
  color: var(--color-navy-200);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
}

.achievement-headline {
  font-family: var(--font-en);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-amber-500);
  line-height: 1.2;
  margin-bottom: 0.5rem;
}

.achievement-desc {
  font-size: var(--text-sm);
  color: var(--color-navy-200);
  line-height: 1.6;
}

/* ============================================================
   10. サイドバー（下層ページ）
   ============================================================ */
.content-with-sidebar {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 3rem;
  align-items: start;
}

.sidebar {
  position: sticky;
  top: 80px;
  align-self: start;
}

.sidebar-cta-card {
  background: var(--color-navy-800);
  color: var(--color-white);
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.sidebar-cta-card h3 {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 0.5rem;
}

.sidebar-cta-card p {
  font-size: var(--text-sm);
  color: var(--color-navy-200);
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

.sidebar-cta-card .btn {
  width: 100%;
  justify-content: center;
}

.sidebar-links {
  background: var(--color-white);
  border: 1px solid var(--color-gray-100);
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.sidebar-links h4 {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 0.75rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--color-gray-100);
}

.sidebar-links a {
  display: block;
  font-size: var(--text-sm);
  color: var(--color-navy-700);
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--color-gray-100);
  transition: color var(--transition-base);
}

.sidebar-links a:last-child {
  border-bottom: none;
}

.sidebar-links a:hover {
  color: var(--color-amber-600);
}

/* ============================================================
   11. ヒーロー（トップページ）
   ============================================================ */
.top-hero {
  background-color: var(--color-navy-900);
  min-height: 90vh;
  display: flex;
  align-items: center;
  padding: 6rem var(--container-padding) 4rem;
  position: relative;
  overflow: hidden;
}

.top-hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: radial-gradient(ellipse at 70% 50%, rgba(30, 77, 140, 0.3) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content {}

.hero-sub-catch {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-amber-500);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.25rem;
  padding: 0.35rem 0.875rem;
  border: 1px solid rgba(232, 105, 15, 0.3);
  border-radius: 3px;
  background: rgba(232, 105, 15, 0.08);
}

.hero-h1 {
  font-size: var(--text-display);
  font-weight: 900;
  color: var(--color-white);
  line-height: 1.2;
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
}

.hero-body {
  font-size: var(--text-lg);
  color: var(--color-navy-200);
  line-height: 1.7;
  margin-bottom: 2rem;
  max-width: 520px;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* ヒーロー右カラム 信頼数値 */
.hero-trust-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 2rem;
  backdrop-filter: blur(8px);
}

.hero-trust-card h3 {
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-navy-200);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.trust-item {
  padding: 1rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

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

.trust-number {
  font-family: var(--font-en);
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--color-amber-500);
  line-height: 1;
  margin-bottom: 0.35rem;
}

.trust-label {
  font-size: var(--text-sm);
  color: var(--color-navy-200);
  line-height: 1.4;
}

/* ============================================================
   12. チェックリストセクション
   ============================================================ */
.checklist {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
}

.checklist-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.875rem 0;
  border-bottom: 1px solid var(--color-amber-100);
}

.checklist-item:nth-child(odd) {
  padding-right: 2rem;
}

.checklist-icon {
  width: 20px;
  height: 20px;
  min-width: 20px;
  border: 2px solid var(--color-amber-600);
  border-radius: 3px;
  margin-top: 1px;
}

.checklist-text {
  font-size: var(--text-base);
  color: var(--color-text-primary);
  line-height: 1.5;
}

/* ============================================================
   13. アラートCTA（緊急）
   ============================================================ */
.alert-cta {
  background: var(--color-amber-50);
  border: 2px solid var(--color-amber-600);
  border-radius: 6px;
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.alert-cta-icon {
  color: var(--color-amber-600);
  font-size: 1.5rem;
  flex-shrink: 0;
}

.alert-cta-text {
  flex: 1;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-primary);
  min-width: 200px;
}

/* ============================================================
   14. フルバナーCTA
   ============================================================ */
.cta-banner {
  padding: 5rem var(--container-padding);
  text-align: center;
  background: var(--color-navy-900);
}

.cta-banner h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 1rem;
  line-height: var(--leading-tight);
}

.cta-banner .sub {
  color: var(--color-navy-200);
  font-size: var(--text-lg);
  margin-bottom: 2.5rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: var(--leading-normal);
}

.cta-banner-note {
  font-size: var(--text-sm);
  color: var(--color-navy-200);
  margin-top: 1rem;
}

.cta-banner .btn-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ============================================================
   15. フォーム
   ============================================================ */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 0.5rem;
}

.required-mark {
  color: var(--color-error);
  margin-left: 0.25rem;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--color-gray-200);
  border-radius: 6px;
  font-size: var(--text-base);
  font-family: var(--font-jp);
  color: var(--color-text-primary);
  background: var(--color-white);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
  -webkit-appearance: none;
  appearance: none;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-navy-500);
  box-shadow: 0 0 0 3px rgba(30, 77, 140, 0.12);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-gray-400);
}

.form-textarea {
  min-height: 160px;
  resize: vertical;
  line-height: var(--leading-normal);
}

.form-error {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-error);
  margin-top: 0.375rem;
}

.form-note {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: 0.375rem;
  line-height: 1.5;
}

/* チェックボックスグループ */
.checkbox-group {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
}

.checkbox-item {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  padding: 0.625rem;
  border-radius: 4px;
  border: 1px solid var(--color-gray-100);
  transition: background var(--transition-base), border-color var(--transition-base);
  cursor: pointer;
}

.checkbox-item:hover {
  background: var(--color-navy-50);
  border-color: var(--color-navy-200);
}

.checkbox-item input[type="checkbox"] {
  width: 18px;
  height: 18px;
  min-width: 18px;
  accent-color: var(--color-navy-700);
  margin-top: 1px;
  cursor: pointer;
}

.checkbox-item label {
  font-size: var(--text-sm);
  color: var(--color-text-primary);
  line-height: 1.5;
  cursor: pointer;
}

.checkbox-item.urgent label {
  font-weight: 700;
  color: var(--color-amber-600);
}

.checkbox-consent {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 1rem;
  background: var(--color-gray-50);
  border-radius: 6px;
}

.checkbox-consent input[type="checkbox"] {
  width: 18px;
  height: 18px;
  min-width: 18px;
  accent-color: var(--color-navy-700);
  margin-top: 2px;
  cursor: pointer;
}

.checkbox-consent label {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
  cursor: pointer;
}

/* ============================================================
   16. 対応の流れ（ステップ）
   ============================================================ */
.process-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.process-step {
  display: flex;
  gap: 1.5rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--color-gray-100);
  position: relative;
}

.process-step:last-child {
  border-bottom: none;
}

.step-number {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: var(--color-navy-800);
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-en);
  font-size: 1rem;
  font-weight: 700;
}

.step-content h3 {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 0.375rem;
}

.step-content p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ============================================================
   17. テーブル
   ============================================================ */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

.data-table th {
  background: var(--color-navy-50);
  color: var(--color-navy-700);
  font-weight: 700;
  padding: 0.875rem 1rem;
  text-align: left;
  border: 1px solid var(--color-gray-100);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.data-table td {
  padding: 0.875rem 1rem;
  border: 1px solid var(--color-gray-100);
  color: var(--color-text-secondary);
  line-height: 1.5;
  vertical-align: top;
}

.data-table tr:hover td {
  background: var(--color-gray-50);
}

/* ============================================================
   18. 安心材料リスト（お問い合わせページ）
   ============================================================ */
.assurance-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.assurance-item {
  padding: 1.5rem;
  background: var(--color-navy-50);
  border-radius: 8px;
  border-top: 3px solid var(--color-navy-700);
}

.assurance-icon {
  font-size: 2rem;
  margin-bottom: 0.875rem;
}

.assurance-item h3 {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 0.5rem;
}

.assurance-item p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ============================================================
   19. Before/After テーブル
   ============================================================ */
.before-after-table {
  width: 100%;
  border-collapse: collapse;
}

.before-after-table th {
  padding: 0.875rem 1rem;
  text-align: center;
  font-size: var(--text-sm);
  font-weight: 700;
}

.before-after-table th.before-header {
  background: var(--color-gray-100);
  color: var(--color-text-secondary);
}

.before-after-table th.after-header {
  background: var(--color-navy-800);
  color: var(--color-white);
}

.before-after-table td {
  padding: 0.875rem 1rem;
  border-bottom: 1px solid var(--color-gray-100);
  font-size: var(--text-sm);
  line-height: 1.5;
  vertical-align: top;
}

.before-after-table td.before-cell {
  color: var(--color-text-muted);
  background: var(--color-white);
}

.before-after-table td.after-cell {
  color: var(--color-success);
  font-weight: 600;
  background: #F0FAF5;
}

/* ============================================================
   20. サービス詳細メニュー（個別サービスページ）
   ============================================================ */
.service-menu-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-100);
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 2rem;
}

.service-menu-card-header {
  background: var(--color-navy-800);
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.service-menu-card-header h3 {
  font-size: var(--text-h4);
  font-weight: 700;
  color: var(--color-white);
}

.service-price-badge {
  background: var(--color-amber-600);
  color: var(--color-white);
  font-size: var(--text-sm);
  font-weight: 700;
  padding: 0.35rem 0.875rem;
  border-radius: 4px;
  font-family: var(--font-en);
  white-space: nowrap;
}

.service-menu-card-body {
  padding: 1.5rem;
}

.service-menu-card-body p {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.service-spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

.service-spec-table th {
  background: var(--color-gray-50);
  color: var(--color-text-secondary);
  font-weight: 700;
  padding: 0.75rem 1rem;
  text-align: left;
  border: 1px solid var(--color-gray-100);
  width: 30%;
  vertical-align: top;
}

.service-spec-table td {
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-gray-100);
  color: var(--color-text-primary);
  line-height: 1.6;
  vertical-align: top;
}

/* ============================================================
   21. ナレッジカテゴリカード
   ============================================================ */
.knowledge-category-card {
  background: var(--color-white);
  border-radius: 8px;
  border: 1px solid var(--color-gray-100);
  padding: 1.5rem;
  transition: box-shadow var(--transition-base);
}

.knowledge-category-card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.knowledge-category-card h3 {
  font-size: var(--text-h4);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 0.5rem;
}

.knowledge-category-card p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.knowledge-article-list {
  list-style: none;
  border-top: 1px solid var(--color-gray-100);
}

.knowledge-article-list li {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--color-gray-100);
  font-size: var(--text-sm);
  color: var(--color-navy-700);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.knowledge-article-list li::before {
  content: '→';
  color: var(--color-amber-600);
  flex-shrink: 0;
}

/* ============================================================
   22. プロフィール
   ============================================================ */
.profile-card {
  display: flex;
  gap: 2.5rem;
  align-items: flex-start;
  background: var(--color-white);
  border: 1px solid var(--color-gray-100);
  border-radius: 8px;
  padding: 2rem;
}

.profile-photo {
  width: 160px;
  min-width: 160px;
  height: 200px;
  background: var(--color-navy-100, #dce6f2);
  border-radius: 8px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-navy-400, #6888aa);
  font-size: 0.75rem;
}

.profile-info h2 {
  font-size: var(--text-h2);
  font-weight: 900;
  color: var(--color-text-primary);
  margin-bottom: 0.5rem;
}

.profile-title {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.profile-bio {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: var(--leading-loose);
}

/* 資格バッジ詳細 */
.credential-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-100);
  border-radius: 8px;
  padding: 1.5rem;
  border-left: 4px solid var(--color-navy-700);
  margin-bottom: 1.5rem;
}

.credential-card h3 {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-navy-700);
  margin-bottom: 0.5rem;
}

.credential-card p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* 経歴テーブル */
.career-table {
  width: 100%;
  border-collapse: collapse;
}

.career-table td {
  padding: 0.875rem 1rem;
  border-bottom: 1px solid var(--color-gray-100);
  font-size: var(--text-sm);
  vertical-align: top;
  line-height: 1.6;
}

.career-table td:first-child {
  width: 160px;
  min-width: 140px;
  font-weight: 700;
  color: var(--color-navy-700);
  white-space: nowrap;
}

/* ============================================================
   23. フッター
   ============================================================ */
.site-footer {
  background: var(--color-navy-900);
  color: var(--color-navy-200);
  padding: 4rem var(--container-padding) 2rem;
}

.footer-inner {
  max-width: var(--container-max);
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand .site-logo {
  margin-bottom: 1rem;
}

.footer-brand .site-logo .logo-main {
  font-size: 1.5rem;
}

.footer-brand-desc {
  font-size: var(--text-sm);
  line-height: 1.7;
  margin-bottom: 1.25rem;
  color: var(--color-navy-200);
}

.footer-contact-info {
  font-size: var(--text-xs);
  color: var(--color-navy-200);
  line-height: 1.8;
  margin-bottom: 1.25rem;
}

.footer-contact-info a {
  color: var(--color-navy-200);
  transition: color var(--transition-base);
}

.footer-contact-info a:hover {
  color: var(--color-white);
}

.footer-section h4 {
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-links a {
  font-size: var(--text-sm);
  color: var(--color-navy-200);
  transition: color var(--transition-base);
  line-height: 1.4;
}

.footer-links a:hover {
  color: var(--color-white);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.footer-bottom-links {
  display: flex;
  gap: 1.5rem;
}

.footer-bottom-links a {
  color: var(--color-text-muted);
  transition: color var(--transition-base);
}

.footer-bottom-links a:hover {
  color: var(--color-white);
}

/* ============================================================
   24. プライバシーポリシー
   ============================================================ */
.prose {
  max-width: 800px;
}

.prose h2 {
  font-size: var(--text-h3);
  font-weight: 700;
  color: var(--color-text-primary);
  margin: 2.5rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-navy-50);
}

.prose h2:first-child {
  margin-top: 0;
}

.prose p {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: var(--leading-loose);
  margin-bottom: 1rem;
}

.prose ul {
  list-style: disc;
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.prose ul li {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: var(--leading-loose);
  margin-bottom: 0.375rem;
}

.prose strong {
  font-weight: 700;
  color: var(--color-text-primary);
}

/* ============================================================
   25. ユーティリティ
   ============================================================ */
.text-center { text-align: center; }
.text-right  { text-align: right; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-6 { margin-top: 3rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.color-amber { color: var(--color-amber-600); }
.color-navy  { color: var(--color-navy-700); }

.note-text {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.lead-text {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  line-height: var(--leading-normal);
  margin-bottom: 2rem;
}

.section-lead {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  line-height: var(--leading-normal);
  max-width: 720px;
  margin-bottom: 2.5rem;
}

/* ============================================================
   26. レスポンシブ（モバイルファースト）
   ============================================================ */

/* タブレット (〜 1024px) */
@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }

  .hero-trust-card {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
  }

  .hero-trust-card h3 {
    grid-column: 1 / -1;
    margin-bottom: 0;
    padding-bottom: 0.75rem;
  }

  .trust-item {
    padding: 0.875rem 1rem;
    border-bottom: none;
    border-right: 1px solid rgba(255, 255, 255, 0.06);
  }

  .trust-item:last-child {
    border-right: none;
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .content-with-sidebar {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

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

/* タブレット〜モバイル (〜 768px) */
@media (max-width: 768px) {
  .section {
    padding: 3.5rem 0;
  }

  .global-nav,
  .header-cta {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .floating-cta {
    display: flex;
  }

  .top-hero {
    min-height: auto;
    padding: 4rem var(--container-padding) 3rem;
  }

  .hero-cta-group {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-cta-group .btn {
    text-align: center;
    justify-content: center;
  }

  .hero-trust-card {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

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

  .checklist-item:nth-child(odd) {
    padding-right: 0;
  }

  .checkbox-group {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .alert-cta {
    flex-direction: column;
    align-items: flex-start;
  }

  .alert-cta .btn {
    align-self: stretch;
    text-align: center;
    justify-content: center;
  }

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

  .profile-card {
    flex-direction: column;
  }

  .profile-photo {
    width: 100%;
    height: 200px;
  }

  .career-table td:first-child {
    white-space: normal;
  }
}

/* スマートフォン (〜 480px) */
@media (max-width: 480px) {
  :root {
    --container-padding: 1rem;
  }

  .hero-h1 {
    font-size: 2rem;
  }

  .hero-trust-card {
    grid-template-columns: 1fr;
  }

  .trust-item {
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .trust-item:last-child {
    border-bottom: none;
  }

  .cta-banner {
    padding: 3.5rem var(--container-padding);
  }

  .cta-banner .btn-group {
    flex-direction: column;
    align-items: stretch;
  }

  .cta-banner .btn-group .btn {
    justify-content: center;
  }
}

/* ============================================================
   27. 補完CSS変数（追加）
   ============================================================ */
:root {
  /* テキストスケール補完 */
  --text-3xl:   clamp(1.875rem, 3vw, 2.75rem);
  --text-2xl:   clamp(1.5rem, 2.5vw, 2rem);

  /* 角丸スケール */
  --radius-xl:  16px;
  --radius-lg:  12px;
  --radius-md:  8px;

  /* カラー補完 */
  --color-amber-200: #fcd38d;
  --color-amber-300: #f9a84c;
  --color-amber-400: #f0862a;
  --color-navy-100:  #dce6f2;
  --color-navy-600:  #1a3a6c;
}

/* ============================================================
   28. ボタン補完
   ============================================================ */
/* ダーク背景上の白ボタン */
.btn-white {
  background: var(--color-white);
  color: var(--color-navy-900);
  border-color: var(--color-white);
  font-weight: 700;
}
.btn-white:hover {
  background: var(--color-navy-50);
  border-color: var(--color-navy-50);
  color: var(--color-navy-900);
  transform: translateY(-1px);
}

/* テキスト系サブCTA */
.btn-ghost {
  background: transparent;
  color: var(--color-navy-700);
  border-color: var(--color-gray-200);
}
.btn-ghost:hover {
  background: var(--color-gray-50);
  border-color: var(--color-navy-200);
  color: var(--color-navy-900);
}

/* ============================================================
   29. バッジ補完
   ============================================================ */
.badge-new {
  background: var(--color-amber-100);
  color: var(--color-amber-600);
  font-size: var(--text-xs);
  font-weight: 700;
  padding: 0.25rem 0.625rem;
  border-radius: 4px;
  letter-spacing: 0.03em;
}

/* ============================================================
   30. ステップ（代替クラス）
   ============================================================ */
.step-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.step-item {
  display: flex;
  gap: 1.5rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--color-gray-100);
}

.step-item:last-child {
  border-bottom: none;
}

.step-item .step-number {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: var(--color-navy-800);
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-en);
  font-size: 1rem;
  font-weight: 700;
}

.step-body {
  flex: 1;
}

.step-title {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 0.375rem;
}

.step-desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ============================================================
   31. スペックテーブル（代替クラス）
   ============================================================ */
.spec-table-wrap {
  overflow-x: auto;
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

.spec-table th {
  background: var(--color-gray-50);
  color: var(--color-text-secondary);
  font-weight: 700;
  padding: 0.75rem 1rem;
  text-align: left;
  border: 1px solid var(--color-gray-100);
  width: 30%;
  vertical-align: top;
}

.spec-table td {
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-gray-100);
  color: var(--color-text-primary);
  line-height: 1.6;
  vertical-align: top;
}

/* ============================================================
   32. サイドバー補完クラス
   ============================================================ */
.sidebar-cta {
  background: var(--color-navy-800);
  color: var(--color-white);
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.sidebar-cta .sidebar-cta-lead {
  font-size: var(--text-sm);
  color: var(--color-navy-200);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.sidebar-cta .btn {
  width: 100%;
  justify-content: center;
}

.sidebar-nav,
.sidebar-related {
  background: var(--color-white);
  border: 1px solid var(--color-gray-100);
  border-radius: 8px;
  padding: 1.25rem;
  margin-bottom: 1rem;
}

.sidebar-nav-title {
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-text-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--color-gray-100);
}

.sidebar-nav-list {
  list-style: none;
}

.sidebar-nav-list li a,
.sidebar-nav-list li {
  display: block;
  font-size: var(--text-sm);
  color: var(--color-navy-700);
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--color-gray-100);
  transition: color var(--transition-base);
  text-decoration: none;
}

.sidebar-nav-list li:last-child,
.sidebar-nav-list li:last-child a {
  border-bottom: none;
}

.sidebar-nav-list li a:hover {
  color: var(--color-amber-600);
}

.sidebar-note {
  border-radius: 8px;
  padding: 1.25rem;
  margin-top: 1rem;
}

/* ============================================================
   33. フッター補完クラス（後期作成ページ用）
   ============================================================ */
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-logo {
  font-family: var(--font-en);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-white);
  display: block;
  margin-bottom: 0.75rem;
}

.footer-tagline {
  font-size: var(--text-sm);
  color: var(--color-navy-200);
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.footer-nav-group h4,
.footer-nav-title {
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-nav-list a,
.footer-nav-list li a {
  font-size: var(--text-sm);
  color: var(--color-navy-200);
  transition: color var(--transition-base);
  text-decoration: none;
}

.footer-nav-list a:hover,
.footer-nav-list li a:hover {
  color: var(--color-white);
}

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

.footer-legal {
  display: flex;
  gap: 1.5rem;
}

.footer-legal a {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  transition: color var(--transition-base);
  text-decoration: none;
}

.footer-legal a:hover {
  color: var(--color-white);
}

/* レスポンシブ補完 */
@media (max-width: 1024px) {
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

  .footer-top > :first-child {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  .footer-top {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}