/* 記事専用CSS - リセット */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Noto Sans JP", sans-serif;
  line-height: 1.6;
  color: #333;
  padding-top: 80px;
  background-color: #ffffff;
}

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

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

/* 出典リンクのスタイリング */
.data-source a {
  color: #2563eb;
  text-decoration: underline;
  font-weight: 600;
  transition: color 0.3s ease;
}

.data-source a:hover {
  color: #1e40af;
  text-decoration: none;
}

/* 出典データのスタイリング */
.data-source {
  margin-top: 1rem;
  padding: 0.5rem 0;
  font-size: 0.9rem;
  color: #6b7280;
  border-top: 1px solid #e5e7eb;
}

/* ヘッダー（メインサイトと完全統一） */
.header {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 15px 0;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header-content {
  max-width: 1250px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo img {
  height: 45px;
  transition: transform 0.3s ease;
}

.logo img:hover {
  transform: scale(1.05);
}

.nav ul {
  display: flex;
  gap: 25px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav a {
  color: #374151;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
  font-size: 0.9rem;
  position: relative;
}

.nav a.active {
  color: #2563eb;
  font-weight: 600;
}

.nav a::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #2563eb 0%, #f59e0b 100%);
  transition: width 0.3s ease;
}

.nav a:hover {
  color: #2563eb;
}

.nav a:hover::after,
.nav a.active::after {
  width: 100%;
}

.nav .cta-button {
  background: linear-gradient(135deg, #2563eb, #1e40af);
  color: white !important;
  padding: 8px 14px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  transition: all 0.3s ease;
}

.nav .cta-button:hover {
  background: linear-gradient(135deg, #1e40af, #1e3a8a);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.nav .cta-button::after {
  display: none;
}

/* パンくずリスト */
.breadcrumb {
  background-color: #f8f9fa;
  padding: 1rem 0;
  border-bottom: 1px solid #e9ecef;
}

.breadcrumb .container {
  max-width: 1250px;
  margin: 0 auto;
  padding: 0 20px;
  display: block;
}

.breadcrumb ol {
  list-style: none;
  display: flex;
  margin: 0;
  padding: 0;
  font-size: 0.9rem;
}

.breadcrumb li {
  display: flex;
  align-items: center;
}

.breadcrumb li:not(:last-child)::after {
  content: ">";
  margin: 0 0.5rem;
  color: #666;
}

.breadcrumb a {
  color: #2563eb;
  text-decoration: none;
  transition: color 0.3s ease;
}

.breadcrumb a:hover {
  color: #1e40af;
  text-decoration: underline;
}

/* メインコンテンツエリア */
.article-main {
  padding: 2rem 0;
  background-color: #f8f9fa;
  min-height: calc(100vh - 200px);
}

.container {
  max-width: 1250px;
  margin: 0 auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
  align-items: start;
}

/* 記事コンテンツ */
.article {
  background-color: white;
  padding: 3rem;
  border-radius: 16px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  border: 1px solid #e5e7eb;
}

.article-header {
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 2px solid #e5e7eb;
}

.article-header h1 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  color: #1f2937;
  margin-bottom: 1.5rem;
  line-height: 1.3;
  font-weight: 700;
}

.article-meta {
  display: flex;
  gap: 1.5rem;
  color: #6b7280;
  font-size: 0.9rem;
  align-items: center;
}

.category {
  background: linear-gradient(135deg, #2563eb, #1e40af);
  color: white;
  padding: 0.4rem 1rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
}

/* 記事本文 */
.article-content {
  font-size: 1.1rem;
  line-height: 1.8;
}

.article-content section {
  margin-bottom: 3rem;
}

.article-content h2 {
  font-size: 1.8rem;
  color: #1f2937;
  margin-bottom: 1.5rem;
  margin-top: 2rem;
  padding-bottom: 0.8rem;
  border-bottom: 3px solid #2563eb;
  font-weight: 700;
}

.article-content h3 {
  font-size: 1.4rem;
  color: #374151;
  margin-bottom: 1rem;
  margin-top: 2rem;
  font-weight: 600;
}

.article-content p {
  line-height: 1.8;
  margin-bottom: 1.5rem;
  color: #374151;
}

.article-content ul,
.article-content ol {
  margin-bottom: 1.5rem;
  padding-left: 2rem;
}

.article-content li {
  margin-bottom: 0.8rem;
  line-height: 1.7;
}

.article-content li strong {
  color: #1f2937;
  font-weight: 600;
}

/* 導入部 */
.intro {
  background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
  padding: 2rem;
  border-radius: 12px;
  border-left: 4px solid #2563eb;
  margin-bottom: 2rem;
}

.intro p {
  font-size: 1.15rem;
  color: #1f2937;
  margin: 0;
  font-weight: 500;
}

/* 目次 */
.toc {
  background: #f8fafc;
  padding: 2rem;
  border-radius: 12px;
  margin-bottom: 3rem;
  border: 1px solid #e2e8f0;
}

.toc h2 {
  font-size: 1.3rem;
  margin-bottom: 1.5rem;
  border-bottom: 2px solid #e2e8f0;
  padding-bottom: 0.8rem;
  color: #1f2937;
}

.toc ol {
  list-style: decimal;
  padding-left: 1.5rem;
}

.toc li {
  margin-bottom: 0.8rem;
}

.toc a {
  color: #2563eb;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

.toc a:hover {
  color: #1e40af;
  text-decoration: underline;
}

/* 解決策セクション */
.solution-section {
  background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
  color: white;
  padding: 3rem;
  border-radius: 16px;
  margin-top: 4rem;
  box-shadow: 0 10px 30px rgba(37, 99, 235, 0.2);
  position: relative;
  overflow: hidden;
}

.solution-section::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 200px;
  height: 200px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  transform: translate(50%, -50%);
}

.solution-section h2 {
  color: white;
  border-bottom: 3px solid rgba(255, 255, 255, 0.3);
  font-size: 2rem;
  margin-bottom: 2rem;
  position: relative;
  z-index: 1;
}

.solution-content {
  position: relative;
  z-index: 1;
}

.solution-content p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  opacity: 0.95;
}

.solution-content ul {
  list-style: none;
  padding-left: 0;
  margin-bottom: 2.5rem;
}

.solution-content li {
  position: relative;
  padding-left: 2.5rem;
  margin-bottom: 1.2rem;
  font-size: 1.1rem;
  line-height: 1.7;
}

.solution-content li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: #10b981;
  font-weight: bold;
  font-size: 1.3rem;
  top: -2px;
}

/* CTAボックス */
.cta-box {
  background: rgba(255, 255, 255, 0.15);
  padding: 2.5rem;
  border-radius: 16px;
  text-align: center;
  margin-top: 2.5rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
}

.cta-box h3 {
  margin-bottom: 0.8rem;
  font-size: 1.5rem;
  font-weight: 700;
}

.cta-box p {
  margin-bottom: 2rem;
  opacity: 0.9;
  font-size: 1.1rem;
}

.solution-section .cta-button {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  background: linear-gradient(135deg, #f59e0b, #f97316);
  color: white;
  padding: 1.2rem 3rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
}

.solution-section .cta-button:hover {
  background: linear-gradient(135deg, #f97316, #ea580c);
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(245, 158, 11, 0.5);
  color: white;
}

/* サイドバー */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  position: sticky;
  top: 120px;
}

.sidebar-widget {
  background-color: white;
  padding: 2rem;
  border-radius: 16px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  border: 1px solid #e5e7eb;
  transition: all 0.3s ease;
}

.sidebar-widget:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.sidebar-widget h3 {
  margin-bottom: 1.5rem;
  color: #1f2937;
  font-size: 1.3rem;
  font-weight: 700;
  border-bottom: 3px solid #2563eb;
  padding-bottom: 0.8rem;
}

.sidebar-widget ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sidebar-widget li {
  margin-bottom: 1rem;
}

.sidebar-widget a {
  color: #374151;
  text-decoration: none;
  font-size: 0.95rem;
  line-height: 1.6;
  transition: all 0.3s ease;
  display: block;
  padding: 0.5rem 0;
  border-bottom: 1px solid #f3f4f6;
}

.sidebar-widget a:hover {
  color: #2563eb;
  padding-left: 0.5rem;
  border-bottom-color: #2563eb;
}

/* サイドバーのアイコン付きリンク */
.sidebar-widget a i {
  width: 20px;
  margin-right: 0.5rem;
  color: #6b7280;
}

.sidebar-widget a:hover i {
  color: #2563eb;
}

/* 特徴リスト */
.features-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.2rem;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  border-radius: 12px;
  border: 1px solid #e2e8f0;
  transition: all 0.3s ease;
}

.feature-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.1);
  border-color: #2563eb;
}

.feature-item i {
  color: #2563eb;
  font-size: 1.4rem;
  width: 24px;
  text-align: center;
  flex-shrink: 0;
}

.feature-item span {
  font-weight: 600;
  color: #1f2937;
  font-size: 0.95rem;
}

/* フッター */
.footer {
  background-color: #1f2937;
  color: white;
  padding: 4rem 0 2rem;
  margin-top: 5rem;
}

.footer-content {
  max-width: 1250px;
  margin: 0 auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 4rem;
  margin-bottom: 3rem;
}

.footer-logo img {
  height: 45px;
  margin-bottom: 1.5rem;
  filter: brightness(0) invert(1);
}

.footer-logo p {
  color: #d1d5db;
  line-height: 1.7;
  font-size: 1rem;
}

.footer-nav {
  display: flex;
  gap: 4rem;
}

.nav-column h4 {
  margin-bottom: 1.5rem;
  font-size: 1.2rem;
  font-weight: 700;
  color: white;
}

.nav-column ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-column li {
  margin-bottom: 0.8rem;
}

.nav-column a {
  color: #d1d5db;
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.3s ease;
}

.nav-column a:hover {
  color: white;
}

.footer-bottom {
  max-width: 1250px;
  margin: 0 auto;
  padding: 2rem 20px 0;
  border-top: 1px solid #374151;
  text-align: center;
  color: #9ca3af;
  font-size: 0.9rem;
}

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

  .sidebar {
    position: static;
    grid-row: 1;
  }

  .article {
    grid-row: 2;
  }
}

@media (max-width: 768px) {
  body {
    padding-top: 70px;
  }

  .header {
    padding: 12px 0;
  }

  .header-content {
    padding: 0 15px;
  }

  .logo img {
    height: 35px;
  }

  .nav ul {
    gap: 15px;
  }

  .nav a {
    font-size: 0.8rem;
  }

  .nav .cta-button {
    padding: 6px 10px;
    font-size: 12px;
  }

  .container {
    padding: 0 15px;
    gap: 1.5rem;
  }

  .article {
    padding: 2rem 1.5rem;
  }

  .article-header {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
  }

  .article-header h1 {
    font-size: 1.8rem;
    line-height: 1.3;
  }

  .article-content {
    font-size: 1rem;
  }

  .article-content h2 {
    font-size: 1.5rem;
  }

  .article-content h3 {
    font-size: 1.2rem;
  }

  .solution-section {
    padding: 2rem 1.5rem;
  }

  .solution-section h2 {
    font-size: 1.6rem;
  }

  .cta-box {
    padding: 2rem 1.5rem;
  }

  .solution-section .cta-button {
    padding: 1rem 2rem;
    font-size: 1rem;
  }

  .sidebar-widget {
    padding: 1.5rem;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .footer-nav {
    gap: 2.5rem;
  }

  .breadcrumb {
    padding: 0.8rem 0;
  }

  .breadcrumb ol {
    font-size: 0.8rem;
  }

  .toc {
    padding: 1.5rem;
  }

  .intro {
    padding: 1.5rem;
  }
}

/* ========================================
   記事一覧ページ専用スタイル（大幅改良版）
======================================== */

/* 記事一覧ページのグローバル設定 */
.articles-index-container {
  max-width: 1250px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ========================================
   ヘッダーセクション - 印象的な印象を与える
======================================== */
.articles-index-header {
  text-align: center;
  padding: 4rem 0 6rem;
  position: relative;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
  color: white;
  margin: -2rem -20px 0;
  border-radius: 0 0 60px 60px;
  overflow: hidden;
}

.articles-index-header::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(
    circle,
    rgba(59, 130, 246, 0.15) 0%,
    rgba(147, 51, 234, 0.1) 50%,
    transparent 70%
  );
  border-radius: 50%;
  animation: float 20s ease-in-out infinite;
}

.articles-index-header::after {
  content: "";
  position: absolute;
  top: 20%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(
    circle,
    rgba(236, 72, 153, 0.1) 0%,
    rgba(59, 130, 246, 0.08) 50%,
    transparent 70%
  );
  border-radius: 50%;
  animation: float 25s ease-in-out infinite reverse;
}

@keyframes float {
  0%,
  100% {
    transform: translate(0, 0) rotate(0deg);
  }
  33% {
    transform: translate(30px, -30px) rotate(120deg);
  }
  66% {
    transform: translate(-20px, 20px) rotate(240deg);
  }
}

.articles-index-header h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  margin-bottom: 2rem;
  position: relative;
  z-index: 2;
  background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 50%, #cbd5e1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.articles-index-header h1::after {
  content: "";
  position: absolute;
  bottom: -20px;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 6px;
  background: linear-gradient(90deg, #3b82f6, #8b5cf6, #ec4899);
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
}

.articles-index-header p {
  font-size: 1.4rem;
  color: #e2e8f0;
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.8;
  position: relative;
  z-index: 2;
  font-weight: 400;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

/* ========================================
   カテゴリセクション - エレガントで機能的
======================================== */
.category-section {
  margin-bottom: 6rem;
  padding: 0;
  background: none;
  border: none;
  box-shadow: none;
  position: relative;
}

.category-section-title {
  display: flex;
  align-items: center;
  gap: 2rem;
  font-size: 2.5rem;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 1.5rem;
  position: relative;
  padding: 2rem 0;
}

.category-section-title::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 4px;
  background: linear-gradient(90deg, #3b82f6, #8b5cf6);
  transition: width 0.8s ease;
  border-radius: 2px;
}

.category-section:hover .category-section-title::before {
  width: 200px;
}

.category-section-title i {
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 2.2rem;
  background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 50%, #ec4899 100%);
  border-radius: 24px;
  box-shadow: 0 10px 30px rgba(59, 130, 246, 0.3);
  position: relative;
  overflow: hidden;
}

.category-section-title i::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    45deg,
    transparent,
    rgba(255, 255, 255, 0.1),
    transparent
  );
  transform: rotate(45deg);
  transition: transform 0.8s ease;
}

.category-section:hover .category-section-title i::before {
  transform: rotate(45deg) translateX(100%);
}

.category-description {
  color: #475569;
  font-size: 1.3rem;
  margin-bottom: 3.5rem;
  line-height: 1.8;
  max-width: 900px;
  font-weight: 400;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

/* ========================================
   記事グリッド - カード型デザインの改良
======================================== */
.articles-grid-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 3rem;
}

.article-item {
  background: white;
  border-radius: 28px;
  border: 2px solid #f1f5f9;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
  position: relative;
  height: 100%;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.article-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: linear-gradient(90deg, #3b82f6, #8b5cf6, #ec4899);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.6s ease;
}

.article-item::after {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(59, 130, 246, 0.05),
    transparent
  );
  transition: left 0.8s ease;
  pointer-events: none;
}

.article-item:hover {
  transform: translateY(-12px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
  border-color: #3b82f6;
}

.article-item:hover::before {
  transform: scaleX(1);
}

.article-item:hover::after {
  left: 100%;
}

.article-item a {
  display: flex;
  flex-direction: column;
  padding: 3rem;
  text-decoration: none;
  color: inherit;
  height: 100%;
  position: relative;
  z-index: 1;
}

.article-item h3 {
  font-size: 1.4rem;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 1.5rem;
  line-height: 1.4;
  flex-grow: 0;
  transition: color 0.3s ease;
}

.article-item:hover h3 {
  color: #3b82f6;
}

.article-item p {
  color: #64748b;
  line-height: 1.8;
  margin-bottom: 2rem;
  font-size: 1.05rem;
  flex-grow: 1;
  font-weight: 400;
}

.article-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  margin-top: auto;
  padding-top: 1.5rem;
  border-top: 2px solid #f8fafc;
}

.article-meta .date {
  font-size: 0.95rem;
  color: #94a3b8;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.article-meta .date::before {
  content: "📅";
  font-size: 1rem;
}

.article-meta .tag {
  background: linear-gradient(135deg, #3b82f6 0%, #1e40af 100%);
  color: white;
  padding: 0.6rem 1.5rem;
  border-radius: 25px;
  font-size: 0.85rem;
  font-weight: 700;
  white-space: nowrap;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
  transition: all 0.3s ease;
}

.article-item:hover .article-meta .tag {
  background: linear-gradient(135deg, #1e40af 0%, #1e3a8a 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

/* ========================================
   CTA セクション - より魅力的で目立つデザイン
======================================== */
.articles-index-cta {
  text-align: center;
  padding: 6rem 4rem;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
  color: white;
  border-radius: 40px;
  margin-top: 8rem;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

.articles-index-cta::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -30%;
  width: 600px;
  height: 600px;
  background: radial-gradient(
    circle,
    rgba(59, 130, 246, 0.15) 0%,
    rgba(139, 92, 246, 0.1) 50%,
    transparent 70%
  );
  border-radius: 50%;
  animation: float 15s ease-in-out infinite;
}

.articles-index-cta::after {
  content: "";
  position: absolute;
  bottom: -40%;
  left: -20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(
    circle,
    rgba(236, 72, 153, 0.1) 0%,
    rgba(59, 130, 246, 0.08) 50%,
    transparent 70%
  );
  border-radius: 50%;
  animation: float 20s ease-in-out infinite reverse;
}

.articles-index-cta h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 2rem;
  font-weight: 900;
  position: relative;
  z-index: 2;
  background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.articles-index-cta p {
  font-size: 1.3rem;
  margin-bottom: 3rem;
  color: #e2e8f0;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.8;
  position: relative;
  z-index: 2;
  font-weight: 400;
}

.articles-index-cta .cta-button {
  background: linear-gradient(135deg, #f59e0b 0%, #f97316 50%, #ea580c 100%);
  color: white;
  padding: 1.5rem 4rem;
  border-radius: 60px;
  text-decoration: none;
  font-weight: 800;
  font-size: 1.2rem;
  display: inline-flex;
  align-items: center;
  gap: 1.5rem;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 10px 40px rgba(245, 158, 11, 0.4);
  position: relative;
  z-index: 2;
  overflow: hidden;
  border: 2px solid rgba(255, 255, 255, 0.2);
}

.articles-index-cta .cta-button::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  transition: left 0.8s ease;
}

.articles-index-cta .cta-button:hover {
  background: linear-gradient(135deg, #f97316 0%, #ea580c 50%, #dc2626 100%);
  transform: translateY(-5px) scale(1.05);
  box-shadow: 0 15px 50px rgba(245, 158, 11, 0.6);
  color: white;
  border-color: rgba(255, 255, 255, 0.4);
}

.articles-index-cta .cta-button:hover::before {
  left: 100%;
}

.articles-index-cta .cta-button i {
  padding: 0.5rem;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  transition: all 0.4s ease;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.articles-index-cta .cta-button:hover i {
  transform: translateX(8px) rotate(10deg);
  background: rgba(255, 255, 255, 0.3);
}

/* ========================================
   レスポンシブデザイン
======================================== */
@media (max-width: 1024px) {
  .articles-grid-list {
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
  }

  .category-section-title {
    font-size: 2.2rem;
    gap: 1.5rem;
  }

  .category-section-title i {
    width: 70px;
    height: 70px;
    font-size: 2rem;
  }
}

@media (max-width: 768px) {
  .articles-index-header {
    padding: 3rem 0 4rem;
    border-radius: 0 0 40px 40px;
  }

  .articles-index-header h1 {
    font-size: 2.5rem;
  }

  .articles-index-header p {
    font-size: 1.2rem;
  }

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

  .category-section {
    margin-bottom: 4rem;
  }

  .category-section-title {
    font-size: 1.8rem;
    gap: 1rem;
  }

  .category-section-title i {
    width: 60px;
    height: 60px;
    font-size: 1.8rem;
  }

  .category-description {
    font-size: 1.1rem;
    margin-bottom: 2.5rem;
  }

  .article-item a {
    padding: 2rem;
  }

  .article-item h3 {
    font-size: 1.2rem;
  }

  .article-item p {
    font-size: 1rem;
  }

  .articles-index-cta {
    padding: 4rem 2rem;
    border-radius: 30px;
    margin-top: 5rem;
  }

  .articles-index-cta .cta-button {
    padding: 1.2rem 3rem;
    font-size: 1.1rem;
    gap: 1rem;
  }
}

@media (max-width: 480px) {
  .articles-index-header {
    padding: 2.5rem 0 3rem;
    border-radius: 0 0 30px 30px;
  }

  .articles-index-header h1 {
    font-size: 2.2rem;
  }

  .category-section-title {
    font-size: 1.5rem;
    flex-direction: column;
    text-align: center;
    gap: 1rem;
    padding: 1.5rem 0;
  }

  .category-section-title i {
    width: 50px;
    height: 50px;
    font-size: 1.5rem;
  }

  .article-item a {
    padding: 1.5rem;
  }

  .articles-index-cta {
    padding: 3rem 1.5rem;
    border-radius: 25px;
  }

  .articles-index-cta .cta-button {
    padding: 1rem 2.5rem;
    font-size: 1rem;
    border-radius: 50px;
  }
}

/* ========================================
   記事内コンテンツの新しいスタイル
======================================== */

/* 画像とキャプション */
.intro-image {
  text-align: center;
  margin: 2rem 0;
}

.image-caption {
  font-size: 0.9rem;
  color: #6b7280;
  margin-top: 0.5rem;
  font-style: italic;
}

/* コンテンツと画像の並び */
.content-with-image {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 2rem;
  align-items: start;
  margin: 2rem 0;
}

.content-with-image .image-content img {
  width: 100%;
  height: auto;
}

/* 統計グリッド */
.problem-stats {
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  padding: 2rem;
  border-radius: 16px;
  margin: 2rem 0;
  border-left: 4px solid #3b82f6;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.stat-item {
  text-align: center;
  padding: 1.5rem;
  background: white;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 900;
  color: #dc2626;
  margin-bottom: 0.5rem;
}

.stat-description {
  font-size: 0.9rem;
  color: #4b5563;
  font-weight: 500;
}

/* 機能紹介セクション */
.feature-showcase {
  margin: 3rem 0;
  background: white;
  border-radius: 16px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

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

.feature-description {
  padding: 2rem;
}

.feature-description h4 {
  color: #1f2937;
  margin-bottom: 1.5rem;
  font-weight: 700;
  font-size: 1.3rem;
}

.feature-description ul li {
  margin-bottom: 1rem;
  line-height: 1.7;
}
.success-stories {
    background: none!important;  
}
.success-stories::before{
    display: none!important;
}

/* 成功事例セクション */
.success-stories {
  margin: 0rem 0;
  padding:0;
}

.success-stories h3 {
  font-weight: 700;
  margin-bottom: 2rem;
}

.case-study {
  background: white;
  padding: 3rem;
  border-radius: 16px;
  margin: 3rem 0;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  border-left: 4px solid #3b82f6;
}

.case-study h4 {
  color: #1f2937;
  margin-bottom: 2rem;
  font-weight: 700;
  font-size: 1.3rem;
}

.before-after {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  margin: 2rem 0;
}

.before,
.after {
  padding: 2rem;
  border-radius: 12px;
}

.before {
  background: linear-gradient(135deg, #fef2f2 0%, #fecaca 10%);
  border-left: 4px solid #ef4444;
}

.after {
  background: linear-gradient(135deg, #f0f9ff 0%, #bfdbfe 10%);
  border-left: 4px solid #3b82f6;
}

.before h5,
.after h5 {
  margin-bottom: 1rem;
  font-weight: 700;
}

.before h5 {
  color: #dc2626;
}

.after h5 {
  color: #1e40af;
}

.case-comment {
  font-style: italic;
  color: #6b7280;
  margin-top: 2rem;
  padding: 1rem;
  background: #f8fafc;
  border-radius: 8px;
  border-left: 4px solid #3b82f6;
}

/* 業界比較セクション */
.industry-comparison {
  margin: 3rem 0;
}

.industry-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.industry-item {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  border: 1px solid #e5e7eb;
}

.industry-name {
  font-weight: 700;
  color: #1f2937;
  margin-bottom: 1rem;
}

.industry-roi {
  font-size: 1.1rem;
  color: #3b82f6;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.industry-period {
  color: #6b7280;
  font-size: 0.9rem;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
  .cta-buttons {
    flex-direction: column;
  }

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

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

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

  .industry-stats {
    grid-template-columns: 1fr;
  }

  .case-study {
    padding: 2rem;
  }
}

/* 従来の問題セクション */
.traditional-problems {
  margin: 3rem 0;
}

.problem-list {
  display: grid;
  gap: 2rem;
  margin: 2rem 0;
}

.problem-item {
  background: #fef2f2;
  padding: 2rem;
  border-radius: 16px;
  border-left: 4px solid #ef4444;
}

.problem-item h4 {
  color: #dc2626;
  margin-bottom: 1rem;
  font-weight: 700;
}

.problem-item p {
  color: #7f1d1d;
  line-height: 1.7;
}

/* ステップ要素 */
.success-steps {
  display: grid;
  gap: 3rem;
  margin: 3rem 0;
}

.step-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2rem;
  align-items: start;
}

.step-number {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, #3b82f6 0%, #1e40af 100%);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 900;
  box-shadow: 0 8px 20px rgba(59, 130, 246, 0.3);
}

.step-content {
  background: white;
  padding: 2rem;
  border-radius: 16px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  border: 1px solid #e5e7eb;
}

.step-content h3 {
  color: #1f2937;
  margin-bottom: 1rem;
  font-weight: 700;
}

.step-content p {
  color: #6b7280;
  margin-bottom: 1rem;
  font-weight: 600;
}

.step-content ul {
  list-style: none;
  padding: 0;
}

.step-content li {
  padding: 0.5rem 0;
  padding-left: 1.5rem;
  position: relative;
  color: #4b5563;
}

.step-content li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: #3b82f6;
  font-weight: bold;
}

/* メトリクス改善セクション */
.metrics-improvement {
  margin: 1rem 0;
}

.metrics-improvement h5 {
  color: #059669;
  margin-bottom: 1rem;
  font-weight: 700;
}

.metrics-improvement ul {
  list-style: none;
  padding: 0;
}

.metrics-improvement li {
  padding: 0.5rem 0;
  color: #1f2937;
  font-weight: 600;
}

/* ROI計算セクション */
.roi-showcase {
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
  padding: 2rem;
  border-radius: 16px;
  margin: 2rem 0;
  border-left: 4px solid #0ea5e9;
}

.roi-showcase h4 {
  color: #0c4a6e;
  margin-bottom: 1.5rem;
  font-weight: 700;
}

.roi-calculation {
  display: grid;
  gap: 1rem;
}

.roi-item {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  padding: 1rem;
  background: white;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.roi-label {
  font-weight: 600;
  color: #374151;
}

.roi-value {
  font-weight: 900;
  font-size: 1.2rem;
  color: #059669;
}

.roi-total {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  padding: 1.5rem;
  background: linear-gradient(135deg, #059669 0%, #047857 100%);
  color: white;
  border-radius: 12px;
  margin-top: 1rem;
}

.roi-total .roi-label {
  color: white;
  font-size: 1.1rem;
}

.roi-total .roi-value {
  color: white;
  font-size: 1.5rem;
}

/* レスポンシブ対応の追加 */
@media (max-width: 768px) {
  .step-item {
    grid-template-columns: 1fr;
    gap: 1rem;
    text-align: center;
  }

  .step-number {
    width: 60px;
    height: 60px;
    font-size: 1.5rem;
    margin: 0 auto;
  }

  .step-content {
    padding: 1.5rem;
  }

  .roi-item {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 0.5rem;
  }

  .roi-total {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 0.5rem;
  }

  .metrics-improvement img {
    float: none !important;
    margin: 0 auto 1rem auto !important;
    display: block !important;
  }
}

/* コスト分析セクション */
.cost-breakdown {
  margin: 3rem 0;
}

.cost-analysis {
  display: grid;
  gap: 2rem;
  margin: 2rem 0;
}

.cost-category {
  background: white;
  border-radius: 16px;
  padding: 2rem;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  border: 1px solid #e5e7eb;
}

.cost-category.hidden-cost {
  background: linear-gradient(135deg, #fef2f2 0%, #fecaca 10%);
  border-left: 4px solid #ef4444;
}

.cost-category h4 {
  color: #1f2937;
  margin-bottom: 1.5rem;
  font-weight: 700;
  font-size: 1.2rem;
}

.cost-category.hidden-cost h4 {
  color: #dc2626;
}

.cost-items {
  display: grid;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.cost-item {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.7);
  border-radius: 8px;
  border: 1px solid #f3f4f6;
}

.cost-label {
  font-weight: 500;
  color: #374151;
}

.cost-amount {
  font-weight: 700;
  color: #059669;
  font-size: 1.1rem;
}

.cost-subtotal {
  text-align: right;
  font-weight: 700;
  font-size: 1.1rem;
  color: #1f2937;
  padding: 1rem;
  background: #f9fafb;
  border-radius: 8px;
}

.cost-total {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  padding: 2rem;
  background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
  color: white;
  border-radius: 16px;
  margin-top: 2rem;
  box-shadow: 0 8px 20px rgba(239, 68, 68, 0.3);
}

.total-label {
  font-size: 1.2rem;
  font-weight: 700;
}

.total-amount {
  font-size: 2rem;
  font-weight: 900;
}

/* 業界比較セクション */
.industry-comparison {
  background: linear-gradient(135deg, #f0fdf4 0%, #ecfdf5 100%);
  padding: 2rem;
  border-radius: 16px;
  margin: 2rem 0;
  border-left: 4px solid #10b981;
}

.industry-comparison h4 {
  color: #065f46;
  margin-bottom: 1.5rem;
  font-weight: 700;
}

.industry-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.industry-item {
  background: white;
  padding: 1.5rem;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  border: 1px solid #d1fae5;
}

.industry-name {
  font-weight: 700;
  color: #065f46;
  margin-bottom: 0.5rem;
}

.industry-roi {
  font-size: 1.2rem;
  font-weight: 900;
  color: #059669;
  margin-bottom: 0.5rem;
}

.industry-period {
  font-size: 0.9rem;
  color: #6b7280;
  font-weight: 500;
}

/* 投資モデル・シミュレーションテーブル */
.investment-model {
  margin: 3rem 0;
}

.simulation-table {
  background: white;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
  border: 1px solid #e5e7eb;
}

.simulation-header {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  background: linear-gradient(135deg, #3b82f6 0%, #1e40af 100%);
  color: white;
  font-weight: 700;
}

.simulation-row {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  border-bottom: 1px solid #f3f4f6;
}

.simulation-total {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: white;
  font-weight: 700;
}

.sim-col {
  padding: 1rem;
  text-align: center;
  border-right: 1px solid rgba(255, 255, 255, 0.2);
}

.simulation-row .sim-col {
  border-right: 1px solid #f3f4f6;
  color: #374151;
}

.sim-col:last-child {
  border-right: none;
}

.sim-col.save {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: white;
  font-weight: 700;
}

/* レスポンシブ対応の追加 */
@media (max-width: 768px) {
  .cost-analysis {
    gap: 1rem;
  }

  .cost-item {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 0.5rem;
  }

  .cost-total {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 0.5rem;
  }

  .industry-stats {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .simulation-header,
  .simulation-row,
  .simulation-total {
    grid-template-columns: 1fr;
    text-align: left;
  }

  .sim-col {
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    text-align: left;
  }

  .simulation-row .sim-col {
    border-bottom: 1px solid #f3f4f6;
  }

  .sim-col:last-child {
    border-bottom: none;
  }

  .total-amount {
    font-size: 1.5rem;
  }
}

/* 機能ショーケース */
.feature-showcase {
  margin: 3rem 0;
  background: white;
  border-radius: 16px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

.feature-description {
  padding: 2rem;
}

.feature-description h4 {
  color: #1f2937;
  margin-bottom: 1.5rem;
  font-weight: 700;
  font-size: 1.3rem;
}

.feature-description ul li {
  margin-bottom: 1rem;
  line-height: 1.7;
}

/* 成功事例画像 */
.success-image {
  margin: 2rem 0;
  overflow: hidden;
}

.success-image::after {
  content: "";
  display: table;
  clear: both;
}

/* CTAボタンコンテナ */
.cta-buttons {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.cta-button.primary {
  background: linear-gradient(135deg, #3b82f6 0%, #1e40af 100%);
  color: white;
  padding: 1rem 2rem;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
  border: none;
  cursor: pointer;
}

.cta-button.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

.cta-button.secondary {
  background: white;
  color: #3b82f6;
  padding: 1rem 2rem;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  border: 2px solid #3b82f6;
  cursor: pointer;
}

.cta-button.secondary:hover {
  background: #3b82f6;
  color: white;
  transform: translateY(-2px);
}

/* ソリューション概要 */
.solution-overview {
  text-align: center;
  margin: 3rem 0;
}

/* 機能グリッド */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin: 3rem 0;
}

.feature-card {
  background: white;
  padding: 2rem;
  border-radius: 16px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  border: 1px solid #e5e7eb;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  display: block;
}

.feature-card h4 {
  color: #1f2937;
  margin-bottom: 1rem;
  font-weight: 700;
  font-size: 1.2rem;
}

.feature-card p {
  color: #6b7280;
  line-height: 1.6;
}

/* ソリューション特典 */
.solution-benefits {
  margin: 3rem 0;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.benefit-item {
  text-align: center;
  padding: 2rem;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  border-radius: 16px;
  border: 1px solid #cbd5e1;
}

.benefit-stat {
  font-size: 2.5rem;
  font-weight: 800;
  color: #3b82f6;
  margin-bottom: 0.5rem;
}

.benefit-desc {
  color: #475569;
  font-weight: 600;
  font-size: 0.9rem;
}

/* ケーススタディレイアウト */
.case-study {
  background: white;
  padding: 3rem;
  border-radius: 16px;
  margin: 3rem 0;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  border-left: 4px solid #3b82f6;
}

.case-study h4 {
  color: #1f2937;
  margin-bottom: 2rem;
  font-weight: 700;
  font-size: 1.3rem;
}

.before-after {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  margin: 2rem 0;
}

.before,
.after {
  padding: 2rem;
  border-radius: 12px;
}

.before {
  background: linear-gradient(135deg, #fef2f2 0%, #fecaca 10%);
  border-left: 4px solid #ef4444;
}

.after {
  background: linear-gradient(135deg, #f0f9ff 0%, #bfdbfe 10%);
  border-left: 4px solid #3b82f6;
}

.before h5,
.after h5 {
  margin-bottom: 1rem;
  font-weight: 700;
}

.before h5 {
  color: #dc2626;
}

.after h5 {
  color: #1e40af;
}

.case-comment {
  font-style: italic;
  color: #6b7280;
  margin-top: 2rem;
  padding: 1rem;
  background: #f8fafc;
  border-radius: 8px;
  border-left: 4px solid #3b82f6;
}

/* 業界比較 */
.industry-comparison {
  margin: 3rem 0;
}

.industry-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.industry-item {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  border: 1px solid #e5e7eb;
}

.industry-name {
  font-weight: 700;
  color: #1f2937;
  margin-bottom: 1rem;
}

.industry-roi {
  font-size: 1.1rem;
  color: #3b82f6;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.industry-period {
  color: #6b7280;
  font-size: 0.9rem;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
  .cta-buttons {
    flex-direction: column;
  }

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

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

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

  .industry-stats {
    grid-template-columns: 1fr;
  }

  .case-study {
    padding: 2rem;
  }
}