/* ============================================
   経理DXパートナー LP — style.css
   ============================================ */

/* ---------- Design Tokens ---------- */
:root {
  /* Colors */
  --navy-900: #0a1628;
  --navy-800: #0f2240;
  --navy-700: #152d54;
  --navy-600: #1b3a6b;
  --navy-500: #234d8a;
  --navy-400: #3a6db5;
  --navy-300: #5a8fd4;
  --navy-200: #8fb5e6;
  --navy-100: #c5d9f2;
  --navy-50: #e8f0fa;

  --gold-500: #d4a843;
  --gold-400: #e6bf5e;
  --gold-300: #f0d078;
  --gold-200: #f5dfa0;
  --gold-100: #faf0d0;
  --gold-50: #fdf8ea;

  --white: #ffffff;
  --gray-50: #f8f9fb;
  --gray-100: #f0f2f5;
  --gray-200: #e2e5ea;
  --gray-300: #c8cdd5;
  --gray-400: #9aa1ad;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;

  --success: #22c55e;
  --danger: #ef4444;

  --offense: #c05621;
  --offense-bg: rgba(192, 86, 33, 0.08);
  --defense: #2563eb;
  --defense-bg: rgba(37, 99, 235, 0.08);
  --dx: #7c3aed;
  --dx-bg: rgba(124, 58, 237, 0.08);

  /* Gradients */
  --gradient-gold: linear-gradient(135deg, var(--gold-500), var(--gold-300));
  --gradient-navy: linear-gradient(135deg, var(--navy-800), var(--navy-600));
  --gradient-hero: linear-gradient(135deg, rgba(10, 22, 40, 0.92), rgba(27, 58, 107, 0.85));
  --gradient-glow: radial-gradient(ellipse at 50% 0%, rgba(212, 168, 67, 0.15), transparent 60%);

  /* Typography */
  --font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.75rem;

  /* Spacing */
  --section-py: 6rem;
  --container-px: 1.5rem;
  --container-max: 1200px;

  /* Borders & Shadows */
  --radius-sm: 0.375rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);
  --shadow-glow: 0 0 40px rgba(212, 168, 67, 0.25);

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* Header */
  --header-height: 72px;
}

/* ---------- Reset ---------- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.8;
  color: var(--gray-800);
  background-color: var(--white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

ul,
ol {
  list-style: none;
}

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

/* ---------- Utilities ---------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-px);
}

.text-gradient {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-accent {
  color: var(--gold-500);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: var(--font-size-base);
  border-radius: var(--radius-full);
  padding: 0.75rem 1.75rem;
  transition: all var(--transition-base);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient-gold);
  color: var(--navy-900);
  box-shadow: 0 4px 16px rgba(212, 168, 67, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(212, 168, 67, 0.5);
}

.btn-outline {
  border: 2px solid rgba(255, 255, 255, 0.4);
  color: var(--white);
  backdrop-filter: blur(4px);
}

.btn-outline:hover {
  border-color: var(--gold-400);
  color: var(--gold-400);
  background: rgba(212, 168, 67, 0.1);
}

.btn-lg {
  padding: 1rem 2.25rem;
  font-size: var(--font-size-lg);
}

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

.btn-arrow {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-base);
}

.btn:hover .btn-arrow {
  transform: translateX(4px);
}

/* ---------- Section Header ---------- */
.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-tag {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--gold-500);
  background: var(--gold-50);
  padding: 0.35rem 1rem;
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
}

.section-title {
  font-size: var(--font-size-4xl);
  font-weight: 900;
  color: var(--navy-800);
  line-height: 1.3;
  margin-bottom: 1rem;
}

.section-desc {
  font-size: var(--font-size-lg);
  color: var(--gray-500);
  max-width: 680px;
  margin: 0 auto;
  line-height: 1.9;
}

/* ---------- Scroll Animations ---------- */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

.animate-fade-up {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUp 0.8s ease forwards;
}

.delay-1 {
  animation-delay: 0.2s;
}

.delay-2 {
  animation-delay: 0.4s;
}

.delay-3 {
  animation-delay: 0.6s;
}

.delay-4 {
  animation-delay: 0.8s;
}

@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* =============================================
   HEADER
   ============================================= */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: 1000;
  transition: all var(--transition-base);
  background: transparent;
}

.header.scrolled {
  background: rgba(10, 22, 40, 0.95);
  backdrop-filter: blur(12px);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--white);
  font-weight: 700;
  font-size: var(--font-size-lg);
  z-index: 10;
}

.logo-icon {
  font-size: 1.5rem;
}

.nav-list {
  display: flex;
  gap: 0.25rem;
}

.nav-link {
  display: block;
  padding: 0.5rem 0.75rem;
  color: rgba(255, 255, 255, 0.75);
  font-size: var(--font-size-sm);
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  white-space: nowrap; /* テキストの意図しない折り返しを防止 */
}

.nav-link:hover {
  color: var(--white);
  background: rgba(255, 255, 255, 0.1);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1.25rem;
  background: var(--gradient-gold);
  color: var(--navy-900);
  font-weight: 700;
  font-size: var(--font-size-sm);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.header-cta:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  z-index: 10;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* =============================================
   HERO
   ============================================= */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

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

.hero-overlay {
  position: absolute;
  inset: 0;
  background: var(--gradient-hero);
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 8rem 0 4rem;
  max-width: 760px;
}

.hero-badge {
  display: inline-block;
  padding: 0.4rem 1.2rem;
  background: rgba(212, 168, 67, 0.15);
  border: 1px solid rgba(212, 168, 67, 0.3);
  border-radius: var(--radius-full);
  color: var(--gold-300);
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: var(--font-size-5xl);
  font-weight: 900;
  color: var(--white);
  line-height: 1.3;
  margin-bottom: 1.5rem;
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.9;
  margin-bottom: 2rem;
}

.hero-service-name {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1.5rem;
  background: rgba(255, 255, 255, 0.07);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-lg);
  margin-bottom: 2.5rem;
}

.service-name-label {
  font-size: var(--font-size-xs);
  font-weight: 700;
  color: var(--gold-400);
  background: rgba(212, 168, 67, 0.2);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.service-name-main {
  font-size: var(--font-size-2xl);
  font-weight: 900;
  color: var(--white);
  letter-spacing: 0.05em;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-scroll {
  position: absolute;
  bottom: 2rem;
  right: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: rgba(255, 255, 255, 0.4);
  font-size: var(--font-size-xs);
  letter-spacing: 0.1em;
  z-index: 1;
}

.hero-scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.4), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {

  0%,
  100% {
    transform: scaleY(1);
    opacity: 0.4;
  }

  50% {
    transform: scaleY(0.5);
    opacity: 1;
  }
}

/* =============================================
   BACKGROUND / PROBLEMS
   ============================================= */
.problems {
  padding: var(--section-py) 0;
  background: var(--gray-50);
  position: relative;
}

.problems::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 200px;
  background: var(--gradient-glow);
  pointer-events: none;
}

.problems-grid {
  display: grid;
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.problems-grid-3col {
  grid-template-columns: repeat(3, 1fr);
}

.problem-card {
  padding: 2rem;
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.problem-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-gold);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.problem-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--gold-200);
}

.problem-card:hover::before {
  opacity: 1;
}

.problem-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.problem-icon-styled {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: var(--gold-50);
  border: 1px solid var(--gold-200);
  border-radius: 50%;
  margin-bottom: 1.25rem;
  color: var(--navy-700);
}

.logo-svg {
  color: var(--gold-400);
}

/* Service column styled icon */
.service-column-icon-styled {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  color: var(--gold-400);
}

/* Service item dot */
.service-item-dot {
  width: 8px;
  height: 8px;
  background: var(--gold-400);
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 0.55rem;
}

/* Benefit styled icon */
.benefit-icon-styled {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--gold-50);
  border: 1px solid var(--gold-200);
  border-radius: var(--radius-md);
  flex-shrink: 0;
  color: var(--navy-700);
}

.problem-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--navy-800);
  margin-bottom: 0.75rem;
  line-height: 1.5;
}

.problem-text {
  font-size: var(--font-size-sm);
  color: var(--gray-500);
  line-height: 1.8;
}

/* Solution callout */
.problems-solution {
  text-align: center;
}

.solution-inner {
  padding: 2.5rem;
  background: var(--navy-800);
  border-radius: var(--radius-xl);
  color: var(--white);
}

.solution-text {
  font-size: var(--font-size-base);
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.9;
  margin-bottom: 1.25rem;
}

.solution-text strong {
  color: var(--gold-400);
}

.solution-highlight {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--white);
  line-height: 1.6;
}

/* =============================================
   FEATURES (3つの特長)
   ============================================= */
.features {
  padding: var(--section-py) 0;
  background: var(--white);
}

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

.feature-card {
  padding: 2.5rem 2rem;
  border-radius: var(--radius-xl);
  border: 1px solid var(--gray-200);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  background: var(--white);
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}

.feature-card-number {
  font-size: var(--font-size-5xl);
  font-weight: 900;
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 0.75rem;
}

.feature-card-badge {
  display: inline-block;
  padding: 0.3rem 0.9rem;
  font-size: var(--font-size-xs);
  font-weight: 700;
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
}

.badge-offense {
  background: var(--offense-bg);
  color: var(--offense);
  border: 1px solid rgba(192, 86, 33, 0.2);
}

.badge-defense {
  background: var(--defense-bg);
  color: var(--defense);
  border: 1px solid rgba(37, 99, 235, 0.2);
}

.badge-dx {
  background: var(--dx-bg);
  color: var(--dx);
  border: 1px solid rgba(124, 58, 237, 0.2);
}

.feature-card-offense {
  border-top: 3px solid var(--offense);
}

.feature-card-defense {
  border-top: 3px solid var(--defense);
}

.feature-card-dx {
  border-top: 3px solid var(--dx);
}

.feature-card-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--navy-800);
  line-height: 1.5;
  margin-bottom: 1rem;
}

.feature-card-desc {
  font-size: var(--font-size-sm);
  color: var(--gray-500);
  line-height: 1.9;
  margin-bottom: 1.5rem;
}

.feature-card-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.feature-card-list li {
  padding-left: 1.5rem;
  position: relative;
  font-size: var(--font-size-sm);
  color: var(--gray-700);
  line-height: 1.6;
}

.feature-card-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--gold-500);
  font-weight: 700;
}

/* =============================================
   SERVICES (サービス詳細 2カラム)
   ============================================= */
.services {
  padding: var(--section-py) 0;
  background: var(--navy-900);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.services::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(212, 168, 67, 0.08), transparent 70%);
  pointer-events: none;
}

.services .section-tag {
  background: rgba(212, 168, 67, 0.15);
}

.services .section-title {
  color: var(--white);
}

.services .section-desc {
  color: rgba(255, 255, 255, 0.65);
}

.services-two-column {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.service-column {
  background: var(--white);
  border: 1px solid var(--gray-200);
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all var(--transition-base);
}

.service-column:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-5px);
  border-color: var(--gold-300);
}

.service-column-header {
  padding: 2rem 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.5rem;
}

.service-column-pro {
  background: linear-gradient(135deg, rgba(212, 168, 67, 0.08), rgba(212, 168, 67, 0.02));
  border-bottom: 1px solid rgba(212, 168, 67, 0.1);
}

.service-column-team {
  background: linear-gradient(135deg, rgba(90, 143, 212, 0.08), rgba(90, 143, 212, 0.02));
  border-bottom: 1px solid rgba(90, 143, 212, 0.1);
}

.service-column-icon {
  font-size: 2rem;
}

.service-column-header h3 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--navy-900);
}

.service-column-header p {
  font-size: var(--font-size-sm);
  color: var(--gray-600);
}

.service-column-list {
  padding: 1.5rem 2rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.service-column-list li {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.service-item-icon {
  font-size: 1.25rem;
  flex-shrink: 0;
  margin-top: 0.2rem;
}

.service-column-list li strong {
  display: block;
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--navy-900);
  margin-bottom: 0.15rem;
}

.service-column-list li p {
  font-size: var(--font-size-sm);
  color: var(--gray-600);
  line-height: 1.6;
}

/* =============================================
   BENEFITS (導入メリット)
   ============================================= */
.benefits {
  padding: var(--section-py) 0;
  background: var(--gray-50);
}

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

.benefit-card {
  padding: 2rem;
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  transition: all var(--transition-base);
}

.benefit-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--gold-200);
}

.benefit-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.benefit-card h3 {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--navy-800);
  margin-bottom: 0.5rem;
}

.benefit-card p {
  font-size: var(--font-size-sm);
  color: var(--gray-500);
  line-height: 1.8;
}

/* =============================================
   FLOW
   ============================================= */
.flow {
  padding: var(--section-py) 0;
  background: var(--white);
}

.flow-timeline {
  max-width: 720px;
  margin: 0 auto;
  position: relative;
}

.flow-timeline::before {
  content: '';
  position: absolute;
  left: 60px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--gold-400), var(--navy-200));
}

.flow-step {
  display: flex;
  gap: 2rem;
  margin-bottom: 2.5rem;
  position: relative;
}

.flow-step:last-child {
  margin-bottom: 0;
}

.flow-step-number {
  flex-shrink: 0;
  width: 120px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-gold);
  color: var(--navy-900);
  font-size: var(--font-size-xs);
  font-weight: 900;
  border-radius: var(--radius-full);
  letter-spacing: 0.05em;
  position: relative;
  z-index: 1;
}

.flow-step-content {
  padding: 1.25rem 1.5rem;
  background: var(--gray-50);
  border-radius: var(--radius-lg);
  flex: 1;
  border: 1px solid var(--gray-200);
  transition: all var(--transition-base);
}

.flow-step-content:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--gold-200);
}

.flow-step-content h3 {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--navy-800);
  margin-bottom: 0.5rem;
}

.flow-step-content p {
  font-size: var(--font-size-sm);
  color: var(--gray-500);
  line-height: 1.8;
}

/* =============================================
   FAQ
   ============================================= */
.faq {
  padding: var(--section-py) 0;
  background: var(--gray-50);
}

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

.faq-item {
  border-bottom: 1px solid var(--gray-200);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 1.5rem 0;
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--navy-800);
  text-align: left;
  transition: color var(--transition-base);
  cursor: pointer;
}

.faq-question:hover {
  color: var(--gold-500);
}

.faq-toggle {
  font-size: var(--font-size-2xl);
  color: var(--gold-500);
  transition: transform var(--transition-base);
  flex-shrink: 0;
  margin-left: 1rem;
}

.faq-item.active .faq-toggle {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding-bottom: 1.5rem;
}

.faq-answer p {
  font-size: var(--font-size-base);
  color: var(--gray-500);
  line-height: 1.9;
}

/* =============================================
   CONTACT
   ============================================= */
.contact {
  padding: var(--section-py) 0;
  background: var(--white);
  position: relative;
}

.contact::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 300px;
  background: var(--gradient-glow);
  pointer-events: none;
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
  position: relative;
}

.contact-title {
  font-size: var(--font-size-4xl);
  font-weight: 900;
  color: var(--navy-800);
  line-height: 1.4;
  margin-bottom: 1rem;
}

.contact-subtitle {
  font-size: var(--font-size-base);
  color: var(--gray-500);
  line-height: 1.9;
  margin-bottom: 2rem;
}

.contact-features {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}

.contact-feature {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: var(--font-size-base);
  color: var(--gray-700);
  font-weight: 500;
}

.contact-feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--gradient-gold);
  color: var(--navy-900);
  font-size: var(--font-size-xs);
  font-weight: 900;
  border-radius: 50%;
  flex-shrink: 0;
}

.contact-company {
  padding: 1.25rem;
  background: var(--gray-50);
  border-radius: var(--radius-md);
  border: 1px solid var(--gray-200);
}

.company-name {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--navy-800);
  margin-bottom: 0.25rem;
}

.company-address {
  font-size: var(--font-size-sm);
  color: var(--gray-500);
}

/* Form */
.contact-form {
  padding: 2.5rem;
  background: var(--gray-50);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--gray-200);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--navy-800);
  margin-bottom: 0.5rem;
}

.required {
  color: var(--danger);
  font-size: var(--font-size-xs);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  color: var(--gray-800);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--gold-500);
  box-shadow: 0 0 0 3px rgba(212, 168, 67, 0.15);
}

.form-check {
  margin-top: 0.25rem;
  margin-bottom: 1.5rem;
}

.checkbox-label {
  display: flex !important;
  align-items: center;
  gap: 0.6rem;
  cursor: pointer;
  font-size: var(--font-size-base) !important;
  font-weight: 500 !important;
  line-height: 1.5;
  color: var(--gray-800);
}

.form-group.form-check input[type="checkbox"] {
  width: 1.1rem;
  height: 1.1rem;
  margin: 0;
  cursor: pointer;
  accent-color: var(--gold-500);
}

.form-subnote {
  margin: 0.3rem 0 0 1.7rem;
  font-size: 0.72rem;
  color: var(--gray-500);
  line-height: 1.5;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--gray-300);
}

.form-note {
  text-align: center;
  font-size: var(--font-size-xs);
  color: var(--gray-400);
  margin-top: 1rem;
}

/* =============================================
   FOOTER
   ============================================= */
.footer {
  padding: 2rem 0;
  background: var(--navy-900);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

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

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--white);
  font-weight: 700;
}

.footer-info {
  text-align: right;
}

.footer-company {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 0.25rem;
}

.footer-copy {
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.3);
}

/* =============================================
   COMPARISON (体制比較)
   ============================================= */
.comparison {
  padding: var(--section-py) 0;
  background: var(--white);
  position: relative;
}

.comparison-visual {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  align-items: center;
}

.comparison-item {
  width: 100%;
  background: var(--gray-50);
  padding: 2.5rem;
  border-radius: var(--radius-xl);
  border: 1px solid var(--gray-200);
  transition: all var(--transition-base);
}

.comparison-item.after {
  background: var(--navy-900);
  color: var(--white);
  border-color: var(--navy-700);
  box-shadow: var(--shadow-xl);
}

.comparison-label {
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: 1.5rem;
  text-align: center;
}

.after .comparison-label {
  color: var(--gold-400);
}

.comparison-bar {
  display: flex;
  height: 80px;
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 1.5rem;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.bar-segment {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 1rem;
  font-size: var(--font-size-sm);
  font-weight: 700;
  text-align: center;
  transition: all var(--transition-base);
}

/* Before colors */
.segment-planning {
  background: var(--navy-500);
  color: var(--white);
}

.segment-admin {
  background: var(--navy-300);
  color: var(--white);
}

/* After colors */
.segment-cfo {
  background: var(--success);
  color: var(--white);
}

.segment-dx {
  background: #2f855a; /* Darker green for contrast */
  color: var(--white);
}

.segment-ability {
  background: #48bb78; /* Mid green */
  color: var(--white);
}

.bar-segment span {
  display: block;
  line-height: 1.2;
}

.segment-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
}

.segment-content strong {
  font-size: var(--font-size-base);
}

.segment-content .tag {
  font-size: 10px;
  background: rgba(255, 255, 255, 0.2);
  padding: 1px 6px;
  border-radius: 4px;
  font-weight: 400;
}

.budget-label {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--gray-500);
  margin-bottom: 0.5rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.budget-label::before {
  content: "";
  display: inline-block;
  width: 12px;
  height: 2px;
  background: currentColor;
}

.after .budget-label {
  color: var(--gold-400);
}

.comparison-bar-wrapper {
  display: flex;
  align-items: stretch;
  gap: 1.5rem;
  width: 100%;
  margin-bottom: 1.5rem;
}

.comparison-bar {
  flex: 1;
  display: flex;
  height: 80px;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
  margin-bottom: 0; /* Wrapperで管理 */
}

.cost-indicator {
  display: flex;
  align-items: center;
  padding-left: 1.5rem;
  border-left: 2px solid var(--gray-300);
  position: relative;
  min-width: 100px;
}

.cost-indicator::before,
.cost-indicator::after {
  content: "";
  position: absolute;
  left: -8px;
  width: 8px;
  height: 2px;
  background: var(--gray-300);
}

.cost-indicator::before { top: 0; }
.cost-indicator::after { bottom: 0; }

.after .cost-indicator {
  border-left-color: var(--gold-500);
}

.after .cost-indicator::before,
.after .cost-indicator::after {
  background: var(--gold-500);
}

.cost-value {
  font-size: var(--font-size-xs);
  font-weight: 800;
  line-height: 1.3;
  color: var(--gray-600);
  white-space: nowrap;
}

.after .cost-value {
  color: var(--gold-400);
}

/* Mobile Tweak for Cost Indicator */
@media (max-width: 1080px) {
  .comparison-bar-wrapper {
    gap: 1rem;
  }
  
  .cost-indicator {
    padding-left: 0.75rem;
    min-width: 70px;
  }

  .cost-value {
    font-size: 10px;
  }
}

@media (max-width: 480px) {
  .comparison-bar-wrapper {
    flex-direction: row; /* 横並び維持 */
  }
}

.comparison-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  z-index: 2;
}

.arrow-text {
  font-size: var(--font-size-lg);
  font-weight: 800;
  color: var(--gold-600);
  background: var(--gold-50);
  padding: 2px 10px;
  border-radius: 20px;
  border: 1px solid var(--gold-200);
  white-space: nowrap;
}

.comparison-arrow-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  background: var(--gold-500);
  color: var(--white);
  border-radius: 50%;
  box-shadow: 0 4px 15px rgba(212, 167, 44, 0.4);
  transition: transform 0.3s ease;
}

.comparison-note {
  font-size: var(--font-size-sm);
  color: var(--gray-500);
  text-align: center;
  line-height: 1.6;
}

.after .comparison-note {
  color: rgba(255, 255, 255, 0.6);
}

/* =============================================
   RESPONSIVE
   ============================================= */

/* --- Tablet / Mobile Interface (1080px以下で一律モバイルUIへ) --- */
@media (max-width: 1080px) {
  :root {
    --section-py: 4rem;
    --container-px: 1.25rem;
  }

  .section-title {
    font-size: var(--font-size-3xl);
  }

  /* Header - 1080px以下でハンバーガーメニューに切り替え */
  .nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 22, 40, 0.98);
    backdrop-filter: blur(16px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 100;
  }

  .nav.active {
    opacity: 1;
    visibility: visible;
  }

  .nav-list {
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
  }

  .nav-link {
    font-size: var(--font-size-xl);
    padding: 0.75rem 1.5rem;
  }

  .header-cta {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  /* Hero Adjustments */
  .hero-title {
    font-size: var(--font-size-3xl);
  }

  .hero-subtitle {
    font-size: var(--font-size-base);
  }

  .hero-service-name {
    flex-direction: column;
    gap: 0.5rem;
    align-items: flex-start;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-scroll {
    display: none;
  }

  /* Comparison (体制比較) - 1080px以下で縦並び化 */
  .comparison-bar {
    height: auto;
    flex-direction: column;
    border-radius: var(--radius-lg);
  }

  .bar-segment {
    padding: 1.5rem 1rem;
    width: 100%;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .bar-segment:last-child {
    border-bottom: none;
  }

  .segment-content {
    flex-direction: row;
    gap: 0.75rem;
    justify-content: center;
  }

  /* Grids & Layouts */
  .features-grid,
  .services-two-column,
  .problems-grid-3col,
  .benefits-grid,
  .contact-wrapper {
    grid-template-columns: 1fr;
    max-width: 600px;
    margin: 0 auto;
  }

  .contact-wrapper {
    gap: 2.5rem;
  }

  .solution-inner br {
    display: none;
  }

  /* Flow Timeline */
  .flow-timeline::before {
    left: 20px;
  }

  .flow-step {
    flex-direction: column;
    gap: 1rem;
  }

  .flow-step-number {
    width: auto;
    align-self: flex-start;
  }

  /* Benefits & Cards */
  .benefit-card {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }

  /* Footer */
  .footer-inner {
    flex-direction: column;
    gap: 1.5rem;
    text-align: center;
  }

  .footer-info {
    text-align: center;
  }
}

/* --- Small Mobile (480px以下) --- */
@media (max-width: 480px) {
  :root {
    --section-py: 3rem;
  }

  .hero-content {
    padding: 6rem 0 3rem;
  }

  .hero-title {
    font-size: var(--font-size-2xl);
  }

  .contact-form {
    padding: 1.5rem;
  }

  .service-column-list {
    padding: 1.25rem 1.5rem 1.5rem;
  }
}

/* =============================================
   Sub Pages (Company, Privacy)
   ============================================= */

.sub-page {
  background-color: var(--gray-50);
  color: var(--gray-800);
}

.sub-page-hero {
  padding: calc(var(--header-height) + 3rem) 0 3rem;
  background: var(--navy-900);
  color: var(--white);
  text-align: center;
}

.sub-page-title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
}

.page-content {
  padding: 4rem 0;
}

.container-narrow {
  max-width: 800px;
}

.content-block {
  margin-bottom: 3rem;
}

.content-block:last-child {
  margin-bottom: 0;
}

.content-block-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--navy-900);
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--gold-400);
  display: inline-block;
}

.intro-text {
  font-size: var(--font-size-lg);
  line-height: 1.8;
  color: var(--gray-700);
}

.info-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.info-table th,
.info-table td {
  padding: 1.25rem;
  border-bottom: 1px solid var(--gray-100);
  text-align: left;
}

.info-table tr:last-child th,
.info-table tr:last-child td {
  border-bottom: none;
}

.info-table th {
  width: 30%;
  background-color: var(--gray-50);
  color: var(--navy-900);
  font-weight: 600;
  vertical-align: top;
}

.info-table td {
  color: var(--gray-700);
  line-height: 1.6;
}

.info-table td a {
  color: var(--navy-500);
  text-decoration: underline;
}

.content-list {
  list-style: none;
  margin-top: 1rem;
}

.content-list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.75rem;
  line-height: 1.6;
  color: var(--gray-700);
}

.content-list li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--gold-500);
  font-weight: bold;
}

.contact-box {
  background: var(--white);
  padding: 2rem;
  border-radius: var(--radius-md);
  border-left: 4px solid var(--gold-400);
  box-shadow: var(--shadow-sm);
  margin-top: 1.5rem;
  line-height: 2;
}

.footer-nav {
  display: flex;
  gap: 2rem;
  margin: 1.5rem 0;
}

.footer-nav a {
  color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
  font-size: var(--font-size-sm);
  transition: var(--transition-fast);
}

.footer-nav a:hover {
  color: var(--gold-400);
}

@media (max-width: 768px) {
  .sub-page-title {
    font-size: var(--font-size-2xl);
  }
  
  .info-table th {
    width: 40%;
    padding: 1rem;
  }
  
  .info-table td {
    padding: 1rem;
  }
  
  .footer-nav {
    flex-direction: column;
    gap: 0.75rem;
    align-items: center;
  }
}