/* ===== 基本設定 ===== */
:root {
  /* カラー変数 */
  --color-primary: #2a2a72;
  --color-primary-light: #3a3a92;
  --color-primary-dark: #1a1a52;
  --color-primary-white: #fff;
  --color-secondary: #ff6b6b;
  --color-secondary-light: #ff8e8e;
  --color-secondary-dark: #e54b4b;
  --color-accent: #4cc9f0;
  --color-accent-light: #7ad7f3;
  --color-accent-dark: #2ab7e0;
  --color-tertiary: #f72585;

  --color-text: #2d3748;
  --color-text-light: #4a5568;
  --color-text-lighter: #718096;
  --color-text-white: #fff;
  --color-background: #ffffff;
  --color-background-alt: #f8fafc;
  --color-background-dark: #edf2f7;
  --color-border: #e2e8f0;

  /* サイズと間隔 */
  --border-radius-sm: 4px;
  --border-radius: 8px;
  --border-radius-lg: 16px;
  --border-radius-xl: 24px;
  --container-width: 1200px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;

  /* トランジション */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* シャドウ */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* リセットとベース */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Noto Sans JP", sans-serif;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-background);
  overflow-x: hidden;
}

.page-wrapper {
  position: relative;
  overflow: hidden;
}

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

/* テキストサイズユーティリティクラス */
.text-sm { font-size: 0.875rem; }      /* 14px */
.text-base { font-size: 1rem; }        /* 16px */
.text-lg { font-size: 1.125rem; }      /* 18px */
.text-xl { font-size: 1.25rem; }       /* 20px */
.text-2xl { font-size: 1.5rem; }       /* 24px */
.text-3xl { font-size: 1.875rem; }     /* 30px */
.text-4xl { font-size: 2.25rem; }      /* 36px */
.text-5xl { font-size: 3rem; }         /* 48px */
.text-6xl { font-size: 4rem; }         /* 64px */
.text-7xl { font-size: 5rem; }         /* 80px */
.text-8xl { font-size: 6rem; }         /* 96px */
.text-9xl { font-size: 8rem; }         /* 128px */

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-normal);
}

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

ul,
ol {
  list-style-position: inside;
}

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

/* 背景要素 */
.bg-pattern {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(var(--color-primary-light) 1px, transparent 1px);
  background-size: 30px 30px;
  opacity: 0.05;
  z-index: -1;
}

/* コンテナ */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  position: relative;
  z-index: 1;
}

/* テキストアクセント */
.text-accent {
  color: var(--color-secondary);
  display: inline;
}

/* ===== ヘッダー ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  padding: var(--spacing-sm) 0;
  transition: all var(--transition-normal);
}

.site-header.scrolled {
  padding: 0.5rem 0;
  box-shadow: var(--shadow-md);
}

.main-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-logo {
  font-family: "Poppins", "Noto Sans JP", sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  transition: transform var(--transition-fast);
}

.site-logo:hover {
  transform: translateY(-2px);
}

.logo-accent {
  color: var(--color-secondary);
  margin-right: var(--spacing-xs);
  font-size: 1.2rem;
}

.nav-links {
  display: flex;
  gap: var(--spacing-md);
  list-style: none;
}

.nav-links a {
  font-weight: 500;
  padding: var(--spacing-xs) 0;
  position: relative;
  color: var(--color-text);
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-secondary);
  transition: width var(--transition-normal);
}

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

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

.nav-cta {
  background: var(--color-secondary);
  color: white !important;
  padding: 0.5rem 1rem !important;
  border-radius: var(--border-radius);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast) !important;
}

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

.nav-cta::after {
  display: none !important;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-primary);
}

/* ===== ヒーローセクション ===== */
.hero-section {
  padding: calc(var(--spacing-lg) * 2) 0 var(--spacing-xl);
  position: relative;
  overflow: hidden;
}

.hero-section .container {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--spacing-lg);
}

.hero-content {
  /* flex: 1; */
}

.hero-visual {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-title {
  font-family: "Poppins", "Noto Sans JP", sans-serif;
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 1.5rem;
  line-height: 1.3;
}

.hero-subcatch {
  font-family: "Poppins", "Noto Sans JP", sans-serif;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 1rem;
  opacity: 0.9;
}

.hero-lead {
  font-size: 1.25rem;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
}

.hero-list {
  list-style: none;
  padding: 0;
  margin: 2.0rem 0;
}

.hero-list li {
  position: relative;
  padding-left: 2rem;
  margin-bottom: 0.5rem;
  font-size: 1.1rem;
  color: var(--color-text);
}

.hero-list li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--color-secondary);
  font-size: 1.5rem;
  line-height: 1;
}

/* 検索インサイトビジュアル */
.search-insights-visual {
  position: relative;
  width: 100%;
  max-width: 600px;
  background-color: var(--color-background-alt);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-sm);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

/* 問題アラートコンポーネント */
.problem-alert {
  background-color: var(--color-background-alt);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-md);
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-lg);
  position: relative;
  overflow: hidden;
}

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

.problem-alert__flow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
}

.flow-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
}

.flow-steps {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

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

.flow-circle {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding: var(--spacing-md);
  text-align: center;
  font-weight: 600;
  gap: var(--spacing-sm);
  position: relative;
}

.flow-step:nth-child(3) .flow-circle,
.flow-step:first-child .flow-circle {
  background-color: rgba(34, 139, 34, 0.1);
}

.flow-step:last-child .flow-circle {
  background-color: rgba(255, 165, 0, 0.2);
}

.flow-title {
  font-size: 1.25rem;
  color: var(--color-text);
  text-align: center;
  margin-bottom: var(--spacing-xs);
}

.flow-subtitle {
  font-size: 1rem;
  color: var(--color-text);
  text-align: center;
}

.flow-arrow {
  font-size: 2.5rem;
  color: var(--color-primary);
  font-weight: bold;
  position: relative;
  z-index: 1;
}

.flow-title-text {
  font-size: 1.1rem;
  color: var(--color-text);
  font-weight: 500;
  margin-bottom: var(--spacing-md);
  text-align: center;
}

.warning-badge {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-tertiary);
  background-color: rgba(76, 201, 240, 0.1);
  padding: 8px 12px;
  border-radius: var(--border-radius);
  display: block;
  margin: var(--spacing-sm) 0;
  text-align: center;
  position: relative;
  z-index: 2;
}

/* テキストセクションのスタイル */
.problem-alert__text {
  flex: 1;
}

.problem-alert__title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--spacing-md);
}

.problem-alert__description {
  font-size: 1rem;
  color: var(--color-text);
  line-height: 1.8;
  margin-bottom: var(--spacing-md);
}

.bold {
  font-weight: 700;
}

@media (max-width: 768px) {
  .problem-alert__content {
    flex-direction: column;
  }
  
  .flow-circle {
    width: 150px;
    height: 150px;
  }
  
  .flow-arrow {
    display: none;
  }
  
  .problem-alert__flow {
    display: none;
  }
  .problem-alert__title {
    font-size: 1.25rem;
  }
  
  .problem-alert__description {
    font-size: 0.95rem;
  }
}

.search-box {
  margin-bottom: var(--spacing-sm);
  background: white;
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-md);
}

.search-bar {
  display: flex;
  align-items: center;
  padding: var(--spacing-sm);
  background-color: var(--color-background-alt);
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-sm);
  border: 1px solid var(--color-border);
}

.search-bar svg {
  color: var(--color-text-lighter);
  margin-right: var(--spacing-sm);
}

.search-text {
  font-weight: 500;
  color: var(--color-text);
}

.search-results {
  background: white;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  margin-top: var(--spacing-md);
}

.result-item {
  padding: var(--spacing-sm) var(--spacing-sm);
  border-bottom: 1px solid var(--color-border);
}

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

.result-title {
  font-weight: 500;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.result-desc {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.5;
}

.category-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.category-list li {
  margin-bottom: 8px;
  padding-left: 20px;
  position: relative;
}

.category-list li:before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--color-primary);
}

.insights-box {
  background-color: var(--color-background-alt);
  color: var(--color-text-white);
  padding: var(--spacing-sm);
  border-radius: var(--border-radius-lg);
  margin-top: var(--spacing-sm);
  border: 1px solid var(--color-border);
}

.insights-title {
  font-weight: 700;
  color: var(--color-text-white);
  margin-bottom: var(--spacing-sm);
  font-size: 1.1rem;
}

.insights-content {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.insight-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.insight-item i {
  color: var(--color-text-white);
  width: 16px;
  height: 16px;
}

.insight-text {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.insight-text strong {
  color: var(--color-text-white);
  font-size: 1rem;
}

.insight-text span {
  color: var(--color-text-white);
  font-size: 0.9rem;
}

.keyword-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: var(--spacing-md);
}

.keyword-item {
  padding: 6px 12px;
  background-color: var(--color-background-alt);
  border-radius: 20px;
  font-size: 0.85rem;
  color: var(--color-text);
  border: 1px solid var(--color-border);
  transition: all var(--transition-normal);
}

.keyword-item:hover {
  background-color: var(--color-primary);
  color: white;
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.keyword-item.k1 {
  background-color: var(--color-primary);
  color: white;
}

.keyword-item.k2 {
  background-color: var(--color-secondary);
  color: white;
}

.keyword-item.k3 {
  background-color: var(--color-tertiary);
  color: white;
}

.insights-arrow {
  display: flex;
  justify-content: center;
  margin: var(--spacing-xs) 0;
}

.insights-arrow svg {
  color: var(--color-primary);
  width: 30px;
  height: 30px;
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%,
  20%,
  50%,
  80%,
  100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-10px);
  }
  60% {
    transform: translateY(-5px);
  }
}

.insights-box {
  background-color: var(--color-primary);
  color: white;
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
}

.insights-title {
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  font-size: 1.2rem;
}

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

.insights-list li {
  display: flex;
  align-items: center;
  margin-bottom: 8px;
}

.insights-list svg {
  color: var(--color-secondary);
  margin-right: 8px;
  flex-shrink: 0;
}

/* ===== ボタン ===== */
.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 2rem;
}

.btn-lg {
  font-size: 1.25rem;
  padding: 1.25rem 3rem;
  border-radius: 0.5rem;
  transition: transform var(--transition-normal);
}

.btn-lg:hover {
  transform: translateY(-2px);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius);
  font-weight: 500;
  transition: all var(--transition-normal);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.1);
  transform: translateX(-100%);
  transition: transform var(--transition-normal);
  z-index: -1;
}

.btn:hover::before {
  transform: translateX(0);
}

.btn svg {
  margin-right: 0.5rem;
  width: 18px;
  height: 18px;
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.1rem;
}

.btn-primary {
  background: var(--color-secondary);
  color: white;
  border: none;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  color: white;
}

.btn-outline {
  background-color: transparent;
  color: var(--color-secondary);
  border: 2px solid var(--color-secondary);
}

.btn-outline:hover {
  background-color: var(--color-secondary-light);
  color: white;
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

/* ===== セクション共通 ===== */
.content-section {
  padding: var(--spacing-xl) 0;
  position: relative;
}

.section-title {
  font-family: "Poppins", "Noto Sans JP", sans-serif;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-primary);
  text-align: center;
  margin-bottom: var(--spacing-lg);
  line-height: 1.3;
}

/* ===== 課題セクション ===== */
.problem-section {
  background-color: var(--color-background);
  position: relative;
}

.problem-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.problem-card {
  background: white;
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.problem-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.card-icon {
  width: 60px;
  height: 60px;
  background: var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-sm);
}

.card-icon svg {
  width: 30px;
  height: 30px;
  color: white;
}

.problem-card h3 {
  font-size: 1.1rem;
  color: var(--color-primary);
}

/* ===== 解決策セクション ===== */
.solution-section {
  background-color: var(--color-background-alt);
  padding: var(--spacing-xl) 0;
}

.solution-content {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.solution-visual {
  flex: 1;
  display: flex;
  justify-content: center;
}

.solution-text {
  flex: 1;
  font-size: 1.1rem;
}

.solution-process {
  background-color: white;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-md);
  width: 100%;
  max-width: 500px;
}

.process-title {
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--color-primary);
  text-align: center;
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--color-border);
}

.process-steps {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.process-step {
  display: flex;
  align-items: flex-start;
  position: relative;
}

.process-step:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 40px;
  left: 15px;
  width: 2px;
  height: calc(100% + var(--spacing-md) - 4px);
  background-color: var(--color-primary);
}

.solution-step-number {
  width: 30px;
  height: 30px;
  background-color: var(--color-secondary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  margin-right: var(--spacing-sm);
  z-index: 1;
  position: relative;
  top: 10px; 
}

.step-icon {
  width: 50px;
  height: 50px;
  background-color: var(--color-background-alt);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: var(--spacing-sm);
  border: 2px solid var(--color-primary);
}

.step-icon svg {
  color: var(--color-primary);
  width: 24px;
  height: 24px;
}

.step-details {
  flex: 1;
}

.step-details h4 {
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.step-details p {
  color: var(--color-text-light);
  font-size: 0.9rem;
}

/* ===== 特徴セクション ===== */
.features-section {
  background-color: var(--color-background);
  padding: var(--spacing-xl) 0;
}

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

@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

.feature-card {
  background-color: white;
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: var(--color-secondary);
  z-index: -1;
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  width: 50px;
  height: 50px;
  background: var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-sm);
}

.feature-icon svg {
  width: 25px;
  height: 25px;
  color: white;
}

.feature-title {
  color: var(--color-primary);
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
}

.feature-desc {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
  font-size: 0.95rem;
}

.feature-points {
  list-style: none;
}

.feature-points li {
  display: flex;
  align-items: flex-start;
  margin-bottom: var(--spacing-xs);
}

.feature-points svg {
  color: var(--color-secondary);
  width: 16px;
  height: 16px;
  margin-right: 0.5rem;
  margin-top: 0.25rem;
}

/* ===== 事例セクション ===== */
.example-section {
  background-color: var(--color-background-alt);
  padding: var(--spacing-xl) 0;
}

.example-content {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.example-visual {
  flex: 1;
  display: flex;
  justify-content: center;
}

.example-text {
  flex: 1;
  text-align: center;
}

.example-text p {
  margin-bottom: var(--spacing-md);
  font-size: 1.1rem;
}

/* キーワード分析ビジュアル */
.keyword-analysis {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.keyword-group {
  display: flex;
  gap: 10px;
  justify-content: center;
}

.keyword-bubble {
  padding: 10px 20px;
  border-radius: 20px;
  font-size: 0.9rem;
  color: white;
  box-shadow: var(--shadow-md);
}

.keyword-bubble.primary {
  background: var(--color-primary);
}

.keyword-bubble.secondary {
  background: var(--color-secondary);
}

.keyword-bubble.tertiary {
  background: var(--color-tertiary);
}

.keyword-bubble.small {
  font-size: 0.8rem;
  padding: 6px 12px;
  opacity: 0.8;
}

/* ===== 料金プランセクション ===== */
.plans-section {
  padding: var(--spacing-xl) 0;
}

.pricing-cards {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.pricing-card {
  background: white;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  width: 100%;
  max-width: 350px;
}

.pricing-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.pricing-header {
  padding: var(--spacing-md);
  text-align: center;
  background: var(--color-primary);
  color: white;
}

.pricing-card.standard .pricing-header {
  background: var(--color-primary);
}

.pricing-card.custom .pricing-header {
  background: var(--color-secondary);
}

.pricing-header h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-xs);
}

.price {
  font-size: 2rem;
  font-weight: 700;
}

.price span {
  font-size: 1rem;
  opacity: 0.8;
}

.pricing-body {
  padding: var(--spacing-md);
}

.pricing-features {
  list-style: none;
}

.pricing-features li {
  display: flex;
  align-items: center;
  margin-bottom: var(--spacing-sm);
}

.pricing-features svg {
  color: var(--color-secondary);
  width: 18px;
  height: 18px;
  margin-right: var(--spacing-sm);
}

.pricing-footer {
  padding: var(--spacing-md);
  text-align: center;
}

/* ===== 導入の流れセクション ===== */
.flow-section {
  background-color: var(--color-background-alt);
  padding: var(--spacing-xl) 0;
}

.flow-timeline {
  max-width: 700px;
  margin: 0 auto;
  position: relative;
}

.flow-timeline::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 30px;
  width: 2px;
  background: var(--color-primary);
}


.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  background: var(--color-secondary);
  color: white;
  border-radius: 50%;
  font-weight: 700;
  font-size: 1.5rem;
  margin-right: var(--spacing-md);
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  box-shadow: var(--shadow-md);
}

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

.step-content h3 {
  font-size: 1.2rem;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.step-content p {
  color: var(--color-text-light);
}

/* ===== FAQセクション ===== */
.faq-section {
  padding: var(--spacing-xl) 0;
}

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

.faq-item {
  margin-bottom: var(--spacing-sm);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  background: white;
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md);
  background-color: white;
  border: none;
  text-align: left;
  cursor: pointer;
  font-weight: 500;
  font-size: 1.1rem;
  transition: background-color var(--transition-fast);
}

.faq-question:hover {
  background-color: var(--color-background-alt);
}

.faq-question svg {
  transition: transform var(--transition-normal);
}

.faq-item.active .faq-question svg {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0;
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal), padding var(--transition-normal);
}

.faq-item.active .faq-answer {
  padding: var(--spacing-md);
  max-height: 300px;
  background-color: var(--color-background-alt);
}

/* ===== CTAセクション ===== */
.cta-section {
  background-color: var(--color-background);
  text-align: center;
  padding: var(--spacing-xl) 0;
  position: relative;
  overflow: hidden;
}

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

.cta-text {
  font-size: 1.2rem;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-lg);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-bg-element {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(76, 201, 240, 0.1) 0%, rgba(255, 255, 255, 0) 70%);
  border-radius: 50%;
  z-index: 0;
}

/* ===== フッター ===== */
.site-footer {
  background-color: var(--color-primary-dark);
  color: white;
  padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
}

.footer-logo .site-logo {
  color: white;
}

.footer-links ul {
  display: flex;
  gap: var(--spacing-md);
  list-style: none;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--transition-normal);
}

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

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.8);
}

.footer-bottom a:hover {
  color: white;
}

/* ===== トップに戻るボタン ===== */
#toTop {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 50%;
  background: var(--color-secondary);
  color: white;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-md);
  z-index: 99;
}

#toTop.visible {
  opacity: 1;
  visibility: visible;
}

#toTop:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

#toTop svg {
  width: 1.5rem;
  height: 1.5rem;
}

/* ===== レスポンシブデザイン ===== */
@media (max-width: 992px) {
  .hero-section .container {
    flex-direction: column;
    align-items: center;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .solution-content,
  .example-content {
    flex-direction: column;
  }

  .pricing-cards {
    flex-direction: column;
    align-items: center;
  }

  .footer-content {
    flex-direction: column;
    gap: var(--spacing-md);
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
  }

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

  .hero-lead {
    font-size: 1.1rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .cta-buttons {
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  .hide-mobile {
    display: none;
  }

  .show-mobile {
    display: inline;
  }

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

  .footer-links ul {
    flex-wrap: wrap;
    justify-content: center;
  }
}

/* モバイルメニュー */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: white;
  z-index: 200;
  padding: var(--spacing-lg);
  transform: translateX(100%);
  transition: transform var(--transition-normal);
  box-shadow: var(--shadow-lg);
}

.mobile-menu.active {
  transform: translateX(0);
}

.mobile-menu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
}

.mobile-menu-close {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-primary);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mobile-nav-links {
  list-style: none;
}

.mobile-nav-links li {
  margin-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--spacing-sm);
}

.mobile-nav-links a {
  font-size: 1.25rem;
  font-weight: 500;
  display: block;
  padding: var(--spacing-xs) 0;
}

/* アニメーション */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    transform: scale(1);
  }
}

/* ユーティリティクラス */
.text-center {
  text-align: center;
}

.mt-0 {
  margin-top: 0;
}
.mt-1 {
  margin-top: var(--spacing-xs);
}
.mt-2 {
  margin-top: var(--spacing-sm);
}
.mt-3 {
  margin-top: var(--spacing-md);
}
.mt-4 {
  margin-top: var(--spacing-lg);
}
.mt-5 {
  margin-top: var(--spacing-xl);
}

.mb-0 {
  margin-bottom: 0;
}
.mb-1 {
  margin-bottom: var(--spacing-xs);
}
.mb-2 {
  margin-bottom: var(--spacing-sm);
}
.mb-3 {
  margin-bottom: var(--spacing-md);
}
.mb-4 {
  margin-bottom: var(--spacing-lg);
}
.mb-5 {
  margin-bottom: var(--spacing-xl);
}