/* ========================================
   解体DX統合ダッシュボード（スタンドアロン版）LP
   完全レスポンシブ CSS
======================================== */

/* ========== CSS変数 ========== */
:root {
  /* カラーパレット */
  --primary-color: #FF6B35;
  --primary-dark: #E55A2B;
  --primary-light: #FF8555;
  
  --secondary-color: #004E89;
  --secondary-dark: #003A65;
  --secondary-light: #006BB3;
  
  --accent-color: #FFB800;
  --success-color: #00C48C;
  --danger-color: #FF5757;
  --warning-color: #FFA726;
  
  --text-dark: #1A1A1A;
  --text-gray: #4A5568;
  --text-light: #718096;
  --bg-white: #FFFFFF;
  --bg-gray: #F7FAFC;
  --bg-dark: #1A202C;
  
  /* グラデーション */
  --gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  --gradient-secondary: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
  --gradient-light: linear-gradient(135deg, rgba(255,107,53,0.1) 0%, rgba(0,78,137,0.1) 100%);
  
  /* タイポグラフィ */
  --font-primary: 'Noto Sans JP', sans-serif;
  --font-secondary: 'Inter', sans-serif;
  
  /* スペーシング */
  --section-padding: 100px 0;
  --container-padding: 0 20px;
  
  /* トランジション */
  --transition-base: all 0.3s ease;
  --transition-slow: all 0.5s ease;
  
  /* シャドウ */
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.12);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.16);
  --shadow-xl: 0 16px 48px rgba(0,0,0,0.2);
  
  /* ボーダー半径 */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
}

/* ========== リセット・基本スタイル ========== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  color: var(--text-dark);
  line-height: 1.8;
  background-color: var(--bg-white);
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

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

/* ========== コンテナ ========== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--container-padding);
}

/* ========== セクション共通 ========== */
.section {
  padding: var(--section-padding);
  position: relative;
  overflow: hidden;
}

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

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

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

/* セクションヘッダー */
.section__header {
  text-align: center;
  margin-bottom: 60px;
}

.section__label {
  display: inline-block;
  padding: 8px 20px;
  background: var(--gradient-light);
  color: var(--primary-color);
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-radius: 50px;
  margin-bottom: 20px;
}

.section__label--light {
  background: rgba(255,255,255,0.2);
  color: var(--bg-white);
}

.section__title {
  font-size: 2.5rem;
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 20px;
  font-family: var(--font-secondary);
}

.section__title--light {
  color: var(--bg-white);
}

.section__description {
  font-size: 1.125rem;
  color: var(--text-gray);
  max-width: 700px;
  margin: 0 auto;
}

.section__description--light {
  color: rgba(255,255,255,0.9);
}

/* テキストユーティリティ */
.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-white {
  background: linear-gradient(135deg, #FFFFFF 0%, rgba(255,255,255,0.8) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

/* ========== ヘッダー ========== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: transparent;
  z-index: 1000;
  transition: var(--transition-base);
  padding: 20px 0;
}

.header.scrolled {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  padding: 12px 0;
}

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

.header__logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--bg-white);
  transition: var(--transition-base);
}

.header.scrolled .header__logo {
  color: var(--text-dark);
}

.header__logo i {
  font-size: 2rem;
  color: var(--primary-color);
}

.header__logo-text {
  font-family: var(--font-secondary);
}

.header__logo-sub {
  display: block;
  font-size: 0.625rem;
  font-weight: 500;
  opacity: 0.8;
}

/* ナビゲーション */
.nav__list {
  display: flex;
  align-items: center;
  gap: 30px;
}

.nav__link {
  color: var(--bg-white);
  font-weight: 500;
  font-size: 0.9375rem;
  transition: var(--transition-base);
  position: relative;
}

.header.scrolled .nav__link {
  color: var(--text-dark);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-color);
  transition: var(--transition-base);
}

.nav__link:hover::after {
  width: 100%;
}

.nav__link--cta {
  padding: 10px 24px;
  background: var(--primary-color);
  color: var(--bg-white);
  border-radius: 50px;
  font-weight: 600;
}

.nav__link--cta::after {
  display: none;
}

.nav__link--cta:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ハンバーガーメニュー */
.header__toggle {
  display: none;
  font-size: 1.5rem;
  color: var(--bg-white);
  transition: var(--transition-base);
}

.header.scrolled .header__toggle {
  color: var(--text-dark);
}

/* ========== ボタン ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 32px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 50px;
  transition: var(--transition-base);
  cursor: pointer;
  text-align: center;
}

.btn--primary {
  background: var(--primary-color);
  color: var(--bg-white);
  box-shadow: var(--shadow-md);
}

.btn--primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

.btn--secondary:hover {
  background: var(--bg-white);
  color: var(--primary-color);
}

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

.btn--outline:hover {
  background: var(--primary-color);
  color: var(--bg-white);
}

.btn--large {
  padding: 16px 40px;
  font-size: 1.0625rem;
}

.btn--full {
  width: 100%;
}

/* ========== ヒーローセクション ========== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 150px 0 100px;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-primary);
  z-index: -1;
}

.hero__bg::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 50%, rgba(255,255,255,0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(255,255,255,0.1) 0%, transparent 50%);
}

.hero__content {
  text-align: center;
  color: var(--bg-white);
  position: relative;
  z-index: 1;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  background: rgba(255,255,255,0.2);
  backdrop-filter: blur(10px);
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: 30px;
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.hero__title {
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 30px;
  font-family: var(--font-secondary);
}

.hero__title--highlight {
  color: var(--accent-color);
  text-decoration: line-through;
  opacity: 0.8;
}

.hero__title--emphasis {
  font-size: 4.5rem;
  color: var(--accent-color);
  text-shadow: 0 4px 20px rgba(255,184,0,0.4);
}

.hero__title--sub {
  display: block;
  font-size: 2rem;
  margin-top: 20px;
  opacity: 0.9;
}

.hero__description {
  font-size: 1.25rem;
  margin-bottom: 40px;
  opacity: 0.95;
}

.hero__stats {
  display: flex;
  justify-content: center;
  gap: 60px;
  margin-bottom: 50px;
}

.hero__stat {
  text-align: center;
}

.hero__stat-number {
  font-size: 3.5rem;
  font-weight: 900;
  font-family: var(--font-secondary);
  margin-bottom: 10px;
}

.hero__stat-number::after {
  content: '%';
  font-size: 2rem;
  margin-left: 4px;
}

.hero__stat:nth-child(2) .hero__stat-number::after,
.hero__stat:nth-child(3) .hero__stat-number::after {
  content: '';
}

.hero__stat-label {
  font-size: 0.875rem;
  opacity: 0.9;
}

.hero__stat-label small {
  display: block;
  font-size: 0.75rem;
  margin-top: 4px;
}

.hero__cta {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 30px;
}

.hero__note {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: rgba(255,255,255,0.15);
  border-radius: 50px;
  font-size: 0.875rem;
  opacity: 0.9;
}

.hero__scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: var(--bg-white);
  font-size: 0.75rem;
  opacity: 0.8;
  animation: scroll-bounce 2s ease-in-out infinite;
}

@keyframes scroll-bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(10px); }
}

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--bg-white), transparent);
}

/* ========== 課題セクション ========== */
.problem__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-bottom: 40px;
}

.problem__card {
  background: var(--bg-white);
  padding: 40px 30px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
  border: 2px solid transparent;
}

.problem__card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-color);
}

.problem__icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto 24px;
  position: relative;
}

.problem__icon::before {
  content: '';
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  background: inherit;
  opacity: 0.2;
  z-index: -1;
}

.problem__icon--1 { background: linear-gradient(135deg, #FF6B35, #FF8555); color: #FFF; }
.problem__icon--2 { background: linear-gradient(135deg, #004E89, #006BB3); color: #FFF; }
.problem__icon--3 { background: linear-gradient(135deg, #FFA726, #FFB946); color: #FFF; }
.problem__icon--4 { background: linear-gradient(135deg, #E55A2B, #FF6B35); color: #FFF; }
.problem__icon--5 { background: linear-gradient(135deg, #003A65, #004E89); color: #FFF; }
.problem__icon--6 { background: linear-gradient(135deg, #FF5757, #FF7575); color: #FFF; }

.problem__title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
  text-align: center;
}

.problem__text {
  text-align: center;
  color: var(--text-gray);
  font-size: 0.9375rem;
}

.problem__summary {
  text-align: center;
  padding: 30px;
  background: var(--gradient-light);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--primary-color);
}

.problem__summary-text {
  font-size: 1.125rem;
  color: var(--text-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.problem__summary-text i {
  color: var(--warning-color);
  font-size: 1.5rem;
}

/* ========== ソリューションセクション ========== */
.solution__comparison {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 40px;
  align-items: center;
  margin-bottom: 60px;
  padding: 50px;
  background: rgba(255,255,255,0.05);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(10px);
}

.solution__label {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.solution__label--before {
  color: var(--danger-color);
}

.solution__label--after {
  color: var(--success-color);
}

.solution__tools {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.solution__tool {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  background: rgba(255,255,255,0.1);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
}

.solution__tool-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
}

.solution__tool small {
  margin-left: auto;
  opacity: 0.8;
}

.solution__tool--more {
  opacity: 0.7;
}

.solution__total {
  margin-top: 20px;
  padding: 16px;
  border-radius: var(--radius-md);
  text-align: center;
  font-size: 1.125rem;
}

.solution__total--before {
  background: rgba(255,87,87,0.2);
  border: 2px solid var(--danger-color);
}

.solution__total--after {
  background: rgba(0,196,140,0.2);
  border: 2px solid var(--success-color);
  position: relative;
}

.solution__discount {
  display: inline-block;
  margin-left: 10px;
  padding: 4px 12px;
  background: var(--accent-color);
  color: var(--text-dark);
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
}

.solution__issues,
.solution__benefits {
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.875rem;
}

.solution__issues li,
.solution__benefits li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.solution__issues i {
  color: var(--danger-color);
}

.solution__benefits i {
  color: var(--success-color);
}

.solution__arrow {
  font-size: 3rem;
  color: var(--accent-color);
}

.solution__system {
  text-align: center;
}

.solution__system-icon {
  width: 100px;
  height: 100px;
  margin: 0 auto 20px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--bg-white);
  box-shadow: var(--shadow-lg);
  animation: rotate 20s linear infinite;
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.solution__system-name {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.solution__system-modules {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 16px;
}

.solution__system-modules span {
  padding: 6px 14px;
  background: rgba(255,255,255,0.15);
  border-radius: 50px;
  font-size: 0.75rem;
}

.solution__features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.solution__feature {
  padding: 30px;
  background: rgba(255,255,255,0.05);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255,255,255,0.1);
  transition: var(--transition-base);
}

.solution__feature:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-4px);
}

.solution__feature-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: rgba(255,255,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: 20px;
}

.solution__feature-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.solution__feature-text {
  font-size: 0.9375rem;
  opacity: 0.9;
}

/* ========== 機能セクション ========== */
.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-bottom: 40px;
}

.features__card {
  background: var(--bg-white);
  padding: 40px 30px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
  border: 2px solid transparent;
  position: relative;
}

.features__card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-color);
}

.features__card--highlight {
  background: var(--gradient-light);
  border-color: var(--primary-color);
}

.features__card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 24px;
}

.features__icon {
  width: 70px;
  height: 70px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--bg-white);
}

.features__icon--1 { background: linear-gradient(135deg, #FF6B35, #FF8555); }
.features__icon--2 { background: linear-gradient(135deg, #004E89, #006BB3); }
.features__icon--3 { background: linear-gradient(135deg, #FFA726, #FFB946); }
.features__icon--4 { background: linear-gradient(135deg, #E55A2B, #FF6B35); }
.features__icon--5 { background: linear-gradient(135deg, #003A65, #004E89); }
.features__icon--6 { background: linear-gradient(135deg, #00C48C, #00E5A0); }
.features__icon--7 { background: linear-gradient(135deg, #8B5CF6, #A78BFA); }

.features__badge {
  padding: 6px 14px;
  background: rgba(0,78,137,0.1);
  color: var(--secondary-color);
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
}

.features__badge--hot {
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  color: var(--bg-white);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.8; }
}

.features__title {
  font-size: 1.375rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.features__description {
  color: var(--text-gray);
  font-size: 0.9375rem;
  margin-bottom: 20px;
}

.features__list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.features__list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9375rem;
  color: var(--text-gray);
}

.features__list i {
  color: var(--success-color);
  margin-top: 4px;
  flex-shrink: 0;
}

.features__note {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 30px;
  background: var(--gradient-light);
  border-radius: var(--radius-lg);
  text-align: center;
  font-size: 1.0625rem;
}

.features__note i {
  color: var(--accent-color);
  font-size: 1.5rem;
}

/* ========== コスト比較シミュレーター ========== */
.simulator {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.simulator__panel {
  background: rgba(255,255,255,0.1);
  padding: 40px;
  border-radius: var(--radius-xl);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.2);
}

.simulator__title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 30px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.simulator__tools {
  display: grid;
  gap: 16px;
  margin-bottom: 30px;
}

.simulator__tool {
  cursor: pointer;
  display: block;
}

.simulator__tool input {
  display: none;
}

.simulator__tool-content {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  background: rgba(255,255,255,0.1);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  transition: var(--transition-base);
}

.simulator__tool:hover .simulator__tool-content {
  background: rgba(255,255,255,0.15);
}

.simulator__tool input:checked + .simulator__tool-content {
  background: rgba(255,255,255,0.2);
  border-color: var(--accent-color);
}

.simulator__tool-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
}

.simulator__tool-name {
  flex: 1;
  font-weight: 600;
}

.simulator__tool-price {
  font-size: 0.875rem;
  opacity: 0.8;
}

.simulator__plan-select {
  margin-top: 30px;
}

.simulator__label {
  display: block;
  font-weight: 600;
  margin-bottom: 12px;
}

.simulator__select {
  width: 100%;
  padding: 14px 20px;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-md);
  color: var(--bg-white);
  font-size: 1rem;
  font-family: inherit;
  cursor: pointer;
  transition: var(--transition-base);
}

.simulator__select:hover {
  background: rgba(255,255,255,0.2);
}

.simulator__select option {
  background: var(--bg-dark);
  color: var(--bg-white);
}

.simulator__results {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.simulator__result-card {
  padding: 30px;
  border-radius: var(--radius-lg);
  text-align: center;
  backdrop-filter: blur(10px);
}

.simulator__result-card--current {
  background: rgba(255,87,87,0.2);
  border: 2px solid var(--danger-color);
}

.simulator__result-card--new {
  background: rgba(0,196,140,0.2);
  border: 2px solid var(--success-color);
}

.simulator__result-label {
  font-size: 0.875rem;
  opacity: 0.9;
  margin-bottom: 10px;
}

.simulator__result-value {
  font-size: 2.5rem;
  font-weight: 900;
  font-family: var(--font-secondary);
}

.simulator__arrow {
  text-align: center;
  font-size: 2rem;
  color: var(--accent-color);
}

.simulator__savings {
  padding: 40px;
  background: rgba(255,184,0,0.2);
  border: 3px solid var(--accent-color);
  border-radius: var(--radius-lg);
  text-align: center;
}

.simulator__savings-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: var(--accent-color);
  color: var(--text-dark);
  border-radius: 50px;
  font-weight: 700;
  margin-bottom: 20px;
}

.simulator__savings-monthly,
.simulator__savings-yearly {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255,255,255,0.2);
}

.simulator__savings-yearly {
  border-bottom: none;
  margin-bottom: 16px;
}

.simulator__savings-label {
  font-size: 0.875rem;
  opacity: 0.9;
}

.simulator__savings-value {
  font-size: 1.75rem;
  font-weight: 900;
  font-family: var(--font-secondary);
}

.simulator__savings-value--large {
  font-size: 2.5rem;
  color: var(--accent-color);
}

.simulator__savings-rate {
  padding: 12px;
  background: rgba(255,255,255,0.15);
  border-radius: var(--radius-md);
  font-weight: 700;
  margin-bottom: 24px;
}

.simulator__cta {
  margin-top: 8px;
}

.cost-comparison__note {
  text-align: center;
  margin-top: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  opacity: 0.8;
  font-size: 0.875rem;
}

/* ========== IT補助金セクション ========== */
.subsidy__grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  margin-bottom: 60px;
}

.subsidy__subtitle {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 30px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.subsidy__benefit {
  display: flex;
  gap: 20px;
  padding: 24px;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: 20px;
  transition: var(--transition-base);
}

.subsidy__benefit:hover {
  transform: translateX(8px);
  box-shadow: var(--shadow-md);
}

.subsidy__benefit-number {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: var(--bg-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 900;
  flex-shrink: 0;
}

.subsidy__benefit-title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.subsidy__benefit-text {
  color: var(--text-gray);
  font-size: 0.9375rem;
}

.subsidy__calculator {
  background: var(--bg-white);
  padding: 40px;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  position: sticky;
  top: 100px;
}

.subsidy__form {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 30px;
}

.subsidy__form-group {
  display: flex;
  flex-direction: column;
}

.subsidy__label {
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-dark);
}

.subsidy__select {
  padding: 12px 16px;
  border: 2px solid #E2E8F0;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-family: inherit;
  transition: var(--transition-base);
  cursor: pointer;
}

.subsidy__select:hover {
  border-color: var(--primary-color);
}

.subsidy__select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(255,107,53,0.1);
}

.subsidy__results {
  padding: 30px;
  background: var(--bg-gray);
  border-radius: var(--radius-lg);
  margin-bottom: 24px;
}

.subsidy__result-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
  border-bottom: 1px solid #E2E8F0;
}

.subsidy__result-row:last-child {
  border-bottom: none;
}

.subsidy__result-row--highlight {
  color: var(--primary-color);
  font-weight: 700;
}

.subsidy__result-row--main {
  background: var(--gradient-light);
  margin: 16px -16px -16px;
  padding: 20px 16px;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.subsidy__result-label {
  font-size: 0.9375rem;
}

.subsidy__result-value {
  font-size: 1.5rem;
  font-weight: 900;
  font-family: var(--font-secondary);
}

.subsidy__result-value--large {
  font-size: 2rem;
  color: var(--primary-color);
}

.subsidy__result-note {
  text-align: center;
  padding: 16px;
  background: var(--bg-white);
  border-radius: var(--radius-md);
  margin-top: 16px;
  font-size: 0.875rem;
  color: var(--text-gray);
}

.subsidy__support {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.subsidy__support-card {
  padding: 40px;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: var(--transition-base);
}

.subsidy__support-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.subsidy__support-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 24px;
  border-radius: 50%;
  background: var(--gradient-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: var(--primary-color);
}

.subsidy__support-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.subsidy__support-text {
  color: var(--text-gray);
  font-size: 0.9375rem;
}

/* ========== 料金プラン ========== */
.pricing__toggle {
  display: flex;
  justify-content: center;
  gap: 0;
  margin-bottom: 60px;
  background: var(--bg-white);
  padding: 6px;
  border-radius: 50px;
  box-shadow: var(--shadow-sm);
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

.pricing__toggle-btn {
  flex: 1;
  padding: 12px 32px;
  border-radius: 50px;
  font-weight: 600;
  transition: var(--transition-base);
  color: var(--text-gray);
}

.pricing__toggle-btn--active {
  background: var(--primary-color);
  color: var(--bg-white);
  box-shadow: var(--shadow-md);
}

.pricing__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-bottom: 40px;
}

.pricing__card {
  background: var(--bg-white);
  padding: 40px 30px;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  transition: var(--transition-base);
  border: 2px solid transparent;
  position: relative;
}

.pricing__card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-color);
}

.pricing__card--recommended {
  border-color: var(--primary-color);
  transform: scale(1.05);
}

.pricing__card--recommended:hover {
  transform: scale(1.05) translateY(-8px);
}

.pricing__badge {
  position: absolute;
  top: -16px;
  left: 50%;
  transform: translateX(-50%);
  padding: 8px 24px;
  background: var(--primary-color);
  color: var(--bg-white);
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 700;
  box-shadow: var(--shadow-md);
}

.pricing__card-header {
  text-align: center;
  margin-bottom: 30px;
}

.pricing__title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.pricing__description {
  color: var(--text-gray);
  font-size: 0.9375rem;
}

.pricing__price {
  text-align: center;
  margin-bottom: 20px;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 4px;
}

.pricing__currency {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-gray);
}

.pricing__amount {
  font-size: 3rem;
  font-weight: 900;
  font-family: var(--font-secondary);
  color: var(--primary-color);
}

.pricing__period {
  font-size: 1.125rem;
  color: var(--text-gray);
}

.pricing__subsidy {
  text-align: center;
  padding: 12px;
  background: var(--gradient-light);
  border-radius: var(--radius-md);
  margin-bottom: 30px;
  font-size: 0.875rem;
}

.pricing__subsidy i {
  color: var(--primary-color);
}

.pricing__features {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 30px;
  min-height: 280px;
}

.pricing__features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9375rem;
  color: var(--text-dark);
}

.pricing__features i {
  margin-top: 4px;
  flex-shrink: 0;
}

.pricing__features .fa-check {
  color: var(--success-color);
}

.pricing__features-disabled {
  opacity: 0.4;
}

.pricing__features-disabled .fa-xmark {
  color: var(--text-gray);
}

.pricing__note {
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--text-gray);
  font-size: 0.875rem;
}

/* ========== 導入フロー ========== */
.flow__timeline {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
}

.flow__timeline::before {
  content: '';
  position: absolute;
  left: 40px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--primary-color), var(--secondary-color));
}

.flow__step {
  display: flex;
  gap: 30px;
  margin-bottom: 50px;
  position: relative;
}

.flow__step-number {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: var(--bg-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 900;
  flex-shrink: 0;
  box-shadow: var(--shadow-lg);
  position: relative;
  z-index: 1;
}

.flow__step-content {
  flex: 1;
  padding: 20px 30px;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
}

.flow__step:hover .flow__step-content {
  transform: translateX(8px);
  box-shadow: var(--shadow-md);
}

.flow__step-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.flow__step-text {
  color: var(--text-gray);
  font-size: 0.9375rem;
  margin-bottom: 12px;
}

.flow__step-duration {
  display: inline-block;
  padding: 6px 14px;
  background: var(--gradient-light);
  color: var(--primary-color);
  border-radius: 50px;
  font-size: 0.8125rem;
  font-weight: 600;
}

/* ========== 競合優位性セクション ========== */
.advantages__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.advantages__card {
  padding: 40px 30px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-xl);
  text-align: center;
  transition: var(--transition-base);
}

.advantages__card:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-8px);
  border-color: rgba(255,255,255,0.3);
}

.advantages__icon {
  width: 90px;
  height: 90px;
  margin: 0 auto 24px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: var(--accent-color);
}

.advantages__title {
  font-size: 1.375rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.advantages__text {
  font-size: 0.9375rem;
  opacity: 0.9;
}

/* ========== FAQ ========== */
.faq__list {
  max-width: 900px;
  margin: 0 auto;
}

.faq__item {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: 16px;
  overflow: hidden;
  transition: var(--transition-base);
}

.faq__item:hover {
  box-shadow: var(--shadow-md);
}

.faq__question {
  width: 100%;
  padding: 24px 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  text-align: left;
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--text-dark);
  cursor: pointer;
  transition: var(--transition-base);
}

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

.faq__question i {
  font-size: 1.25rem;
  transition: var(--transition-base);
  color: var(--primary-color);
}

.faq__item.active .faq__question i {
  transform: rotate(180deg);
}

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq__item.active .faq__answer {
  max-height: 500px;
}

.faq__answer p {
  padding: 0 30px 24px;
  color: var(--text-gray);
  line-height: 1.8;
}

/* ========== お問い合わせセクション ========== */
.contact__content {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 60px;
  max-width: 1100px;
  margin: 0 auto;
}

.contact__info-card {
  padding: 30px;
  background: rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  margin-bottom: 24px;
  text-align: center;
  transition: var(--transition-base);
}

.contact__info-card:hover {
  background: rgba(255,255,255,0.15);
  transform: translateY(-4px);
}

.contact__info-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: rgba(255,255,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
}

.contact__info-title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.contact__info-text {
  font-size: 0.9375rem;
  opacity: 0.9;
}

.contact__benefits {
  padding: 30px;
  background: rgba(255,184,0,0.2);
  border: 2px solid var(--accent-color);
  border-radius: var(--radius-lg);
}

.contact__benefits-title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.contact__benefits-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.contact__benefits-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.875rem;
}

.contact__benefits-list i {
  color: var(--success-color);
  margin-top: 4px;
  flex-shrink: 0;
}

.contact__form {
  background: rgba(255,255,255,0.1);
  padding: 40px;
  border-radius: var(--radius-xl);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.2);
}

.contact__form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.contact__form-group {
  margin-bottom: 24px;
}

.contact__label {
  display: block;
  font-weight: 600;
  margin-bottom: 8px;
}

.contact__required {
  display: inline-block;
  margin-left: 8px;
  padding: 2px 8px;
  background: var(--danger-color);
  color: var(--bg-white);
  font-size: 0.6875rem;
  border-radius: 4px;
  font-weight: 700;
}

.contact__input,
.contact__select,
.contact__textarea {
  width: 100%;
  padding: 14px 20px;
  background: rgba(255,255,255,0.15);
  border: 2px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-md);
  color: var(--bg-white);
  font-size: 1rem;
  font-family: inherit;
  transition: var(--transition-base);
}

.contact__input::placeholder,
.contact__textarea::placeholder {
  color: rgba(255,255,255,0.5);
}

.contact__input:focus,
.contact__select:focus,
.contact__textarea:focus {
  outline: none;
  border-color: var(--accent-color);
  background: rgba(255,255,255,0.2);
  box-shadow: 0 0 0 3px rgba(255,184,0,0.2);
}

.contact__select option {
  background: var(--bg-dark);
  color: var(--bg-white);
}

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

.contact__checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
}

.contact__checkbox input {
  margin-top: 4px;
  cursor: pointer;
}

.contact__link {
  color: var(--accent-color);
  text-decoration: underline;
}

.contact__link:hover {
  opacity: 0.8;
}

/* ========== フッター ========== */
.footer {
  background: var(--bg-dark);
  color: var(--bg-white);
  padding: 60px 0 30px;
}

.footer__content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 60px;
  margin-bottom: 40px;
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.footer__logo i {
  font-size: 2rem;
  color: var(--primary-color);
}

.footer__description {
  font-size: 0.875rem;
  opacity: 0.8;
  line-height: 1.8;
}

.footer__title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.footer__list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer__list li {
  font-size: 0.875rem;
  opacity: 0.8;
  transition: var(--transition-base);
}

.footer__list a:hover {
  color: var(--primary-color);
  opacity: 1;
  padding-left: 4px;
}

.footer__list i {
  margin-right: 8px;
  color: var(--primary-color);
}

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 30px;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.875rem;
  opacity: 0.8;
}

.footer__links {
  display: flex;
  gap: 24px;
}

.footer__links a:hover {
  color: var(--primary-color);
}

/* ========== ページトップボタン ========== */
.scroll-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--primary-color);
  color: var(--bg-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-base);
  z-index: 999;
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-top:hover {
  background: var(--primary-dark);
  transform: translateY(-4px);
}

/* ========== モーダル ========== */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.8);
  backdrop-filter: blur(5px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-base);
}

.modal.visible {
  opacity: 1;
  visibility: visible;
}

.modal__content {
  background: var(--bg-white);
  padding: 60px 50px;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  text-align: center;
  max-width: 500px;
  transform: scale(0.9);
  transition: var(--transition-base);
}

.modal.visible .modal__content {
  transform: scale(1);
}

.modal__icon {
  width: 100px;
  height: 100px;
  margin: 0 auto 24px;
  border-radius: 50%;
  background: var(--gradient-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--success-color);
}

.modal__title {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.modal__text {
  color: var(--text-gray);
  font-size: 1rem;
  margin-bottom: 32px;
}

.modal__btn {
  min-width: 200px;
}

/* ========== レスポンシブデザイン ========== */

/* タブレット（1024px以下） */
@media (max-width: 1024px) {
  :root {
    --section-padding: 80px 0;
  }
  
  .section__title {
    font-size: 2rem;
  }
  
  .hero__title {
    font-size: 2.5rem;
  }
  
  .hero__title--emphasis {
    font-size: 3.5rem;
  }
  
  .hero__title--sub {
    font-size: 1.5rem;
  }
  
  .problem__grid,
  .features__grid,
  .advantages__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .solution__comparison {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .solution__arrow {
    transform: rotate(90deg);
  }
  
  .solution__features {
    grid-template-columns: 1fr;
  }
  
  .simulator {
    grid-template-columns: 1fr;
  }
  
  .subsidy__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .subsidy__calculator {
    position: static;
  }
  
  .pricing__grid {
    grid-template-columns: 1fr;
  }
  
  .pricing__card--recommended {
    transform: scale(1);
  }
  
  .contact__content {
    grid-template-columns: 1fr;
  }
  
  .footer__content {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
  }
}

/* スマートフォン（768px以下） */
@media (max-width: 768px) {
  :root {
    --section-padding: 60px 0;
  }
  
  html {
    font-size: 14px;
  }
  
  /* ヘッダー */
  .nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--bg-dark);
    padding: 100px 30px;
    transition: var(--transition-base);
    z-index: 999;
  }
  
  .nav.open {
    right: 0;
  }
  
  .nav__list {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }
  
  .nav__link {
    color: var(--bg-white);
    font-size: 1.125rem;
  }
  
  .header__toggle {
    display: block;
  }
  
  /* ヒーロー */
  .hero {
    min-height: auto;
    padding: 120px 0 60px;
  }
  
  .hero__title {
    font-size: 2rem;
  }
  
  .hero__title--emphasis {
    font-size: 2.5rem;
  }
  
  .hero__title--sub {
    font-size: 1.25rem;
  }
  
  .hero__description {
    font-size: 1rem;
  }
  
  .hero__stats {
    flex-direction: column;
    gap: 30px;
  }
  
  .hero__cta {
    flex-direction: column;
  }
  
  /* グリッドレイアウト */
  .problem__grid,
  .features__grid,
  .advantages__grid,
  .subsidy__support {
    grid-template-columns: 1fr;
  }
  
  .solution__comparison {
    padding: 30px 20px;
  }
  
  .contact__form-row {
    grid-template-columns: 1fr;
  }
  
  .footer__content {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .footer__bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
  
  .footer__links {
    flex-direction: column;
    gap: 12px;
  }
}

/* 小型スマートフォン（480px以下） */
@media (max-width: 480px) {
  .hero__title {
    font-size: 1.75rem;
  }
  
  .hero__title--emphasis {
    font-size: 2rem;
  }
  
  .section__title {
    font-size: 1.75rem;
  }
  
  .btn {
    padding: 12px 24px;
    font-size: 0.9375rem;
  }
  
  .btn--large {
    padding: 14px 28px;
  }
}

/* アニメーション用クラス */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.slide-in-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.slide-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.slide-in-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.slide-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}