/* =============================================
   DIGITAL FRONT - Codex導入支援LP
   style.css
   ============================================= */

/* ---------- CSS Variables ---------- */
:root {
  --primary: #0ea5e9;
  --primary-dark: #0284c7;
  --primary-light: #38bdf8;
  --accent: #6366f1;
  --accent-dark: #4f46e5;
  --bg-dark: #050a14;
  --bg-card: #0d1526;
  --bg-card-hover: #111d33;
  --bg-section: #070e1c;
  --border: rgba(255,255,255,0.08);
  --border-hover: rgba(14,165,233,0.4);
  --text-primary: #f0f6ff;
  --text-secondary: #8b9cc8;
  --text-muted: #4a5a80;
  --gradient-primary: linear-gradient(135deg, #0ea5e9 0%, #6366f1 100%);
  --gradient-dark: linear-gradient(180deg, #050a14 0%, #070e1c 100%);
  --shadow-glow: 0 0 40px rgba(14,165,233,0.15);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
  --font-jp: 'Noto Sans JP', sans-serif;
  --font-en: 'Inter', sans-serif;
}

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

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

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

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ---------- Container ---------- */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Section Padding ---------- */
.section-padding {
  padding: 96px 0;
}

/* ---------- Section Header ---------- */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-label {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--primary-light);
  background: rgba(14,165,233,0.1);
  border: 1px solid rgba(14,165,233,0.25);
  padding: 6px 18px;
  border-radius: 100px;
  margin-bottom: 20px;
}

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  line-height: 1.4;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.section-title strong {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-desc {
  margin-top: 20px;
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.9;
}

.section-desc strong {
  color: var(--text-primary);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  white-space: nowrap;
  letter-spacing: 0.02em;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: 0 4px 20px rgba(14,165,233,0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(14,165,233,0.45);
}

.btn-outline {
  border: 1px solid var(--border-hover);
  color: var(--primary-light);
  background: rgba(14,165,233,0.06);
}
.btn-outline:hover {
  background: rgba(14,165,233,0.14);
  border-color: var(--primary);
  transform: translateY(-2px);
}

.btn-outline-primary {
  border: 1px solid var(--border-hover);
  color: var(--primary-light);
  background: transparent;
  width: 100%;
  justify-content: center;
  margin-top: auto;
}
.btn-outline-primary:hover {
  background: rgba(14,165,233,0.1);
  transform: translateY(-2px);
}

.btn-white {
  background: rgba(255,255,255,0.1);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.2);
  backdrop-filter: blur(8px);
}
.btn-white:hover {
  background: rgba(255,255,255,0.18);
  transform: translateY(-2px);
}

.btn-lg { padding: 16px 36px; font-size: 1rem; }
.btn-xl { padding: 18px 40px; font-size: 1.05rem; border-radius: var(--radius-lg); }

/* ---------- HEADER ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
}

.site-header.scrolled {
  background: rgba(5,10,20,0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1rem;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: var(--gradient-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 0.95rem;
  flex-shrink: 0;
}

.logo-text { color: var(--text-primary); }

.header-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.header-nav a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 500;
  transition: color var(--transition);
  letter-spacing: 0.02em;
}

.header-nav a:hover { color: var(--text-primary); }

.header-nav .nav-cta {
  background: var(--gradient-primary);
  color: #fff;
  padding: 9px 20px;
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.header-nav .nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(14,165,233,0.35);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px;
}

.hamburger span {
  display: block;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

.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;
  padding: 120px 0 80px;
}

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

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(14,165,233,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(14,165,233,0.06) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.3;
  animation: pulse 6s ease-in-out infinite;
}

.glow-1 {
  width: 600px;
  height: 600px;
  top: -100px;
  right: -100px;
  background: radial-gradient(circle, rgba(14,165,233,0.4), transparent 70%);
}

.glow-2 {
  width: 500px;
  height: 500px;
  bottom: -50px;
  left: -100px;
  background: radial-gradient(circle, rgba(99,102,241,0.3), transparent 70%);
  animation-delay: -3s;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.3; }
  50% { transform: scale(1.1); opacity: 0.5; }
}

.hero-inner {
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(14,165,233,0.1);
  border: 1px solid rgba(14,165,233,0.3);
  padding: 8px 18px;
  border-radius: 100px;
  font-size: 0.875rem;
  color: var(--primary-light);
  font-weight: 500;
  margin-bottom: 28px;
  animation: fadeInDown 0.7s ease both;
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3.6rem);
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 28px;
  animation: fadeInUp 0.8s ease 0.1s both;
}

.hero-title strong {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: clamp(0.95rem, 1.5vw, 1.1rem);
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 40px;
  max-width: 660px;
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 56px;
  animation: fadeInUp 0.8s ease 0.3s both;
}

.hero-checklist {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  max-width: 640px;
  animation: fadeInUp 0.8s ease 0.4s both;
}

.checklist-title {
  font-weight: 600;
  color: var(--primary-light);
  font-size: 0.875rem;
  margin-bottom: 14px;
  letter-spacing: 0.05em;
}

.hero-checklist ul li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  padding: 5px 0;
}

.hero-checklist ul li i {
  color: var(--primary);
  margin-top: 4px;
  flex-shrink: 0;
  font-size: 0.8rem;
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
}

.hero-scroll-indicator span {
  display: block;
  width: 2px;
  height: 48px;
  background: linear-gradient(to bottom, rgba(14,165,233,0.6), transparent);
  margin: 0 auto;
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

.sp-only { display: none; }

/* ---------- PROBLEM ---------- */
.problem {
  background: var(--bg-section);
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  margin-bottom: 56px;
}

.problem-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  transition: var(--transition);
  opacity: 0;
  transform: translateY(16px);
}

.problem-card.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease, transform 0.5s ease, border-color var(--transition), background var(--transition);
}

.problem-card:hover {
  border-color: rgba(14,165,233,0.3);
  background: var(--bg-card-hover);
}

.problem-icon {
  width: 44px;
  height: 44px;
  background: rgba(14,165,233,0.1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-light);
  font-size: 1.1rem;
  flex-shrink: 0;
}

.problem-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.problem-card p strong {
  color: var(--text-primary);
  font-weight: 600;
}

.problem-conclusion {
  background: linear-gradient(135deg, rgba(14,165,233,0.08), rgba(99,102,241,0.08));
  border: 1px solid rgba(14,165,233,0.2);
  border-radius: var(--radius-lg);
  padding: 40px 48px;
  text-align: center;
}

.problem-conclusion p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 2;
}

.problem-conclusion p strong {
  color: var(--primary-light);
  font-weight: 700;
}

/* ---------- SOLUTION ---------- */
.solution {
  background: var(--bg-dark);
}

.solution-value {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 48px;
}

.solution-value-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 28px;
  text-align: center;
}

.solution-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

.tag {
  background: rgba(14,165,233,0.08);
  border: 1px solid rgba(14,165,233,0.2);
  color: var(--primary-light);
  padding: 8px 18px;
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 500;
  transition: var(--transition);
}

.tag:hover {
  background: rgba(14,165,233,0.16);
  border-color: var(--primary);
}

/* ---------- SERVICE ---------- */
.service {
  background: var(--bg-section);
}

.service-list {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.service-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px 48px;
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 32px;
  align-items: start;
  transition: var(--transition);
  opacity: 0;
  transform: translateY(20px);
}

.service-item.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.6s ease, transform 0.6s ease, border-color var(--transition);
}

.service-item:hover {
  border-color: var(--border-hover);
}

.service-num {
  font-family: var(--font-en);
  font-size: 3rem;
  font-weight: 800;
  color: transparent;
  -webkit-text-stroke: 1px rgba(14,165,233,0.3);
  line-height: 1;
  padding-top: 4px;
}

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

.service-icon-wrap {
  width: 52px;
  height: 52px;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.3rem;
}

.service-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.service-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.85;
}

.service-detail {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 8px;
}

.service-detail li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.service-detail li i {
  color: var(--primary);
  font-size: 0.8rem;
  margin-top: 4px;
  flex-shrink: 0;
}

/* ---------- FEATURES ---------- */
.features {
  background: var(--bg-dark);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
  opacity: 0;
  transform: translateY(16px);
}

.feature-card.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease, transform 0.5s ease, border-color var(--transition), transform var(--transition);
}

.feature-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
}

.feature-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, rgba(14,165,233,0.15), rgba(99,102,241,0.15));
  border: 1px solid rgba(14,165,233,0.2);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-light);
  font-size: 1.4rem;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.feature-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ---------- COMPARISON ---------- */
.comparison {
  background: var(--bg-section);
}

.comparison-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  margin-bottom: 40px;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
}

.comparison-table thead th {
  background: rgba(14,165,233,0.08);
  color: var(--primary-light);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 16px 24px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.comparison-table tbody tr {
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}

.comparison-table tbody tr:last-child { border-bottom: none; }

.comparison-table tbody tr:hover { background: rgba(255,255,255,0.02); }

.comparison-table.highlight-row,
.comparison-table tbody tr.highlight-row {
  background: rgba(14,165,233,0.05);
}

.comparison-table tbody td {
  padding: 16px 24px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  vertical-align: middle;
}

.tool-badge {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.tool-badge.chatgpt { background: rgba(16,163,127,0.15); color: #10a37f; border: 1px solid rgba(16,163,127,0.3); }
.tool-badge.codex { background: rgba(14,165,233,0.15); color: #38bdf8; border: 1px solid rgba(14,165,233,0.4); }
.tool-badge.claude { background: rgba(204,120,50,0.15); color: #f0a050; border: 1px solid rgba(204,120,50,0.3); }
.tool-badge.cursor { background: rgba(139,92,246,0.15); color: #a78bfa; border: 1px solid rgba(139,92,246,0.3); }
.tool-badge.github { background: rgba(240,246,252,0.1); color: #c9d1d9; border: 1px solid rgba(240,246,252,0.15); }
.tool-badge.supabase { background: rgba(62,207,142,0.15); color: #3ecf8e; border: 1px solid rgba(62,207,142,0.3); }
.tool-badge.vercel { background: rgba(255,255,255,0.08); color: #f0f0f0; border: 1px solid rgba(255,255,255,0.15); }

.comparison-conclusion {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 48px;
  text-align: center;
}

.comparison-conclusion p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.9;
  margin-bottom: 8px;
}

.comparison-conclusion p:last-child { margin-bottom: 0; }

.comparison-conclusion strong {
  color: var(--primary-light);
  font-weight: 700;
}

/* ---------- MERIT ---------- */
.merit {
  background: var(--bg-dark);
}

.merit-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.merit-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
  opacity: 0;
  transform: translateY(16px);
}

.merit-card.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease, transform 0.5s ease, border-color var(--transition), transform var(--transition);
}

.merit-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
}

.merit-icon {
  width: 52px;
  height: 52px;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.3rem;
  margin-bottom: 20px;
}

.merit-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.merit-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ---------- USE CASES ---------- */
.usecases {
  background: var(--bg-section);
}

.usecase-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.usecase-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
  opacity: 0;
  transform: translateY(16px);
}

.usecase-card.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease, transform 0.5s ease, border-color var(--transition);
}

.usecase-card:hover {
  border-color: var(--border-hover);
}

.usecase-industry {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary-light);
  background: rgba(14,165,233,0.08);
  border: 1px solid rgba(14,165,233,0.2);
  padding: 5px 12px;
  border-radius: 100px;
  margin-bottom: 16px;
}

.usecase-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
  line-height: 1.5;
}

.usecase-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ---------- STEPS ---------- */
.steps {
  background: var(--bg-dark);
}

.steps-flow {
  max-width: 720px;
  margin: 0 auto;
}

.step-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 24px;
  align-items: start;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  transition: var(--transition);
  opacity: 0;
  transform: translateX(-20px);
}

.step-item.visible {
  opacity: 1;
  transform: translateX(0);
  transition: opacity 0.5s ease, transform 0.5s ease, border-color var(--transition);
}

.step-item:hover {
  border-color: var(--border-hover);
}

.step-num {
  font-family: var(--font-en);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.3;
}

.step-num strong {
  display: block;
  font-size: 2.2rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-top: 2px;
}

.step-body h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.step-body h3 i {
  color: var(--primary-light);
  font-size: 0.9rem;
}

.step-body p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.step-arrow {
  text-align: center;
  padding: 8px 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* ---------- PRICE ---------- */
.price {
  background: var(--bg-section);
}

.price-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
  align-items: start;
  margin-bottom: 24px;
}

.price-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  transition: var(--transition);
  position: relative;
  opacity: 0;
  transform: translateY(20px);
}

.price-card.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease, transform 0.5s ease, border-color var(--transition);
}

.price-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
}

.price-card.featured {
  border-color: rgba(14,165,233,0.4);
  background: linear-gradient(160deg, rgba(14,165,233,0.06), rgba(99,102,241,0.06));
}

.price-badge-popular {
  position: absolute;
  top: -1px;
  right: 24px;
  background: var(--gradient-primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  letter-spacing: 0.05em;
}

.price-header { border-bottom: 1px solid var(--border); padding-bottom: 24px; }

.price-num {
  font-family: var(--font-en);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--primary-light);
  margin-bottom: 10px;
}

.price-header h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: 16px;
}

.price-amount {
  font-family: var(--font-en);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-primary);
  display: flex;
  align-items: baseline;
  gap: 3px;
}

.price-amount .from {
  font-size: 1rem;
  font-weight: 400;
  color: var(--text-secondary);
  margin-right: 2px;
}

.price-amount .tax {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--text-muted);
  margin-left: 4px;
}

.price-body { flex: 1; display: flex; flex-direction: column; gap: 16px; }

.price-recommend {
  font-size: 0.8rem;
  color: var(--primary-light);
  background: rgba(14,165,233,0.08);
  border: 1px solid rgba(14,165,233,0.2);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  line-height: 1.6;
}

.price-body ul { flex: 1; }

.price-body ul li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  padding: 6px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.price-body ul li:last-child { border-bottom: none; }

.price-body ul li i {
  color: var(--primary);
  font-size: 0.75rem;
  margin-top: 4px;
  flex-shrink: 0;
}

.price-note {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ---------- FAQ ---------- */
.faq {
  background: var(--bg-dark);
}

.faq-list {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition);
}

.faq-item:hover,
.faq-item.active {
  border-color: rgba(14,165,233,0.3);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 22px 24px;
  text-align: left;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.5;
  transition: var(--transition);
}

.faq-question:hover { background: rgba(255,255,255,0.02); }

.faq-q {
  width: 30px;
  height: 30px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
  flex-shrink: 0;
}

.faq-icon {
  margin-left: auto;
  color: var(--text-muted);
  font-size: 0.85rem;
  transition: transform var(--transition);
  flex-shrink: 0;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4,0,0.2,1);
}

.faq-item.active .faq-answer { max-height: 300px; }

.faq-answer-inner {
  padding: 0 24px 24px 70px;
}

.faq-answer-inner p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.9;
}

/* ---------- FINAL CTA ---------- */
.final-cta {
  position: relative;
  overflow: hidden;
  padding: 112px 0;
  text-align: center;
}

.final-cta-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(14,165,233,0.06) 0%, rgba(99,102,241,0.06) 100%);
}

.final-cta-glow {
  position: absolute;
  width: 800px;
  height: 800px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(14,165,233,0.12), transparent 60%);
  border-radius: 50%;
}

.final-cta-inner {
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin: 0 auto;
}

.final-cta-title {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 28px;
  color: var(--text-primary);
}

.final-cta-title strong {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.final-cta-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 2;
  margin-bottom: 48px;
}

.final-cta-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  margin-bottom: 32px;
}

.final-cta-note {
  color: var(--text-muted);
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.final-cta-note i { color: var(--primary-light); }

/* ---------- FOOTER ---------- */
.site-footer {
  background: rgba(0,0,0,0.3);
  border-top: 1px solid var(--border);
  padding: 56px 0 32px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 40px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.footer-tagline {
  margin-top: 12px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  max-width: 480px;
}

.footer-nav a {
  font-size: 0.8rem;
  color: var(--text-muted);
  transition: color var(--transition);
}

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

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-bottom a {
  font-size: 0.8rem;
  color: var(--primary-light);
}

.footer-bottom a:hover { text-decoration: underline; }

/* ---------- FLOATING CTA ---------- */
.floating-cta {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 900;
  opacity: 0;
  transform: translateY(20px);
  transition: var(--transition);
  pointer-events: none;
}

.floating-cta.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}

/* ---------- ANIMATION ---------- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-16px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- RESPONSIVE ---------- */

/* Tablet */
@media (max-width: 900px) {
  .header-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: rgba(5,10,20,0.98);
    backdrop-filter: blur(16px);
    flex-direction: column;
    align-items: flex-start;
    padding: 80px 32px 40px;
    gap: 24px;
    border-left: 1px solid var(--border);
    transition: right 0.35s cubic-bezier(0.4,0,0.2,1);
  }

  .header-nav.open { right: 0; }

  .header-nav a { font-size: 1rem; }

  .header-nav .nav-cta { width: 100%; text-align: center; justify-content: center; }

  .hamburger { display: flex; }

  .section-padding { padding: 72px 0; }

  .service-item {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 28px 32px;
  }

  .service-num { font-size: 2rem; }

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

  .comparison-table thead th,
  .comparison-table tbody td {
    padding: 12px 16px;
    font-size: 0.85rem;
  }
}

/* Mobile */
@media (max-width: 600px) {
  .sp-only { display: block; }

  .hero {
    padding: 100px 0 80px;
  }

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

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

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

  .hero-checklist { padding: 20px; }

  .section-header { margin-bottom: 40px; }

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

  .problem-conclusion {
    padding: 28px 24px;
  }

  .solution-value { padding: 28px 24px; }

  .service-item { padding: 24px; }

  .service-detail { grid-template-columns: 1fr; }

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

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

  .step-item {
    grid-template-columns: 60px 1fr;
    padding: 20px;
    gap: 16px;
  }

  .comparison-table { min-width: 520px; }

  .comparison-conclusion { padding: 24px; }

  .final-cta { padding: 72px 0; }

  .final-cta-buttons {
    flex-direction: column;
    align-items: center;
  }

  .final-cta-buttons .btn { width: 100%; max-width: 360px; justify-content: center; }

  .faq-answer-inner { padding: 0 16px 20px; }

  .footer-inner { flex-direction: column; }

  .footer-bottom { flex-direction: column; text-align: center; }

  .floating-cta { bottom: 20px; right: 16px; left: 16px; }
  .floating-cta .btn { width: 100%; justify-content: center; }
}