/* ===========================
   Design Tokens & Custom Properties
   =========================== */
:root {
  /* Colors - Trust-Oriented Blue Palette */
  --c-primary: #1a56db;
  --c-primary-dark: #1642a3;
  --c-primary-light: #e1effe;
  --c-primary-50: #eff6ff;
  --c-accent: #0ea5e9;
  --c-accent-dark: #0284c7;

  /* Neutrals */
  --c-bg: #f8fafc;
  --c-bg-alt: #ffffff;
  --c-bg-dark: #0f172a;
  --c-bg-card: #ffffff;
  --c-text: #1e293b;
  --c-text-secondary: #64748b;
  --c-text-muted: #94a3b8;
  --c-border: #e2e8f0;
  --c-border-light: #f1f5f9;

  /* Semantic Colors */
  --c-green: #059669;
  --c-green-light: #d1fae5;
  --c-blue: #2563eb;
  --c-blue-light: #dbeafe;
  --c-purple: #7c3aed;
  --c-purple-light: #ede9fe;
  --c-orange: #ea580c;
  --c-orange-light: #fed7aa;
  --c-pink: #db2777;
  --c-pink-light: #fce7f3;
  --c-teal: #0d9488;
  --c-teal-light: #ccfbf1;

  /* Typography */
  --f-sans: 'Noto Sans JP', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --f-size-xs: 0.75rem;
  --f-size-sm: 0.875rem;
  --f-size-base: 1rem;
  --f-size-lg: 1.125rem;
  --f-size-xl: 1.25rem;
  --f-size-2xl: 1.5rem;
  --f-size-3xl: 2rem;
  --f-size-4xl: 2.5rem;
  --f-size-5xl: 3.25rem;

  /* Spacing */
  --sp-xs: 0.25rem;
  --sp-sm: 0.5rem;
  --sp-md: 1rem;
  --sp-lg: 1.5rem;
  --sp-xl: 2rem;
  --sp-2xl: 3rem;
  --sp-3xl: 4rem;
  --sp-4xl: 6rem;

  /* Border Radius */
  --r-sm: 0.375rem;
  --r-md: 0.5rem;
  --r-lg: 0.75rem;
  --r-xl: 1rem;
  --r-2xl: 1.5rem;
  --r-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 10px 10px -5px rgba(0, 0, 0, 0.03);
  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-card-hover: 0 20px 40px -8px rgba(26, 86, 219, 0.12), 0 8px 16px -6px rgba(0, 0, 0, 0.06);

  /* Transitions */
  --t-fast: 150ms ease;
  --t-base: 250ms ease;
  --t-slow: 400ms ease;
  --t-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Layout */
  --max-w: 1200px;
  --header-h: 72px;
}

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

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

body {
  font-family: var(--f-sans);
  font-size: var(--f-size-base);
  line-height: 1.7;
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

ul,
ol {
  list-style: none;
}

/* ===========================
   Container
   =========================== */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--sp-xl);
}

/* ===========================
   Buttons
   =========================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-sm);
  padding: 0.75rem 1.75rem;
  font-family: var(--f-sans);
  font-size: var(--f-size-sm);
  font-weight: 600;
  border: none;
  border-radius: var(--r-full);
  cursor: pointer;
  transition: all var(--t-base);
  text-decoration: none;
  letter-spacing: 0.01em;
}

.btn-primary {
  background: var(--c-primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(26, 86, 219, 0.3);
}

.btn-primary:hover {
  background: var(--c-primary-dark);
  box-shadow: 0 6px 20px rgba(26, 86, 219, 0.4);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--c-primary);
  border: 1.5px solid var(--c-primary);
}

.btn-outline:hover {
  background: var(--c-primary);
  color: #fff;
  transform: translateY(-2px);
}

/* ===========================
   Header
   =========================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: all var(--t-base);
}

.site-header.scrolled {
  background: rgba(255, 255, 255, 0.95);
  border-bottom-color: var(--c-border);
  box-shadow: var(--shadow-sm);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
  font-size: var(--f-size-lg);
  font-weight: 700;
  color: var(--c-text);
}

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

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

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--sp-2xl);
}

.nav-link {
  font-size: var(--f-size-sm);
  font-weight: 500;
  color: var(--c-text-secondary);
  position: relative;
  padding: var(--sp-xs) 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--c-primary);
  border-radius: var(--r-full);
  transition: width var(--t-base);
}

.nav-link:hover,
.nav-link.active {
  color: var(--c-primary);
}

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

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--sp-sm);
  z-index: 1001;
}

.hamburger-line {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--c-text);
  border-radius: var(--r-full);
  transition: all var(--t-base);
}

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

.mobile-menu-btn.active .hamburger-line:nth-child(2) {
  opacity: 0;
}

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

/* ===========================
   Hero Section
   =========================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 40%, #1a56db 100%);
  overflow: hidden;
  padding-top: var(--header-h);
}

.hero-bg-shapes {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.hero-shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.3;
}

.hero-shape-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, #3b82f6 0%, transparent 70%);
  top: -10%;
  right: -5%;
  animation: float1 20s ease-in-out infinite;
}

.hero-shape-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, #06b6d4 0%, transparent 70%);
  bottom: -5%;
  left: 10%;
  animation: float2 25s ease-in-out infinite;
}

.hero-shape-3 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, #8b5cf6 0%, transparent 70%);
  top: 40%;
  left: 50%;
  animation: float3 18s ease-in-out infinite;
}

@keyframes float1 {

  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }

  33% {
    transform: translate(-30px, 40px) scale(1.1);
  }

  66% {
    transform: translate(20px, -20px) scale(0.95);
  }
}

@keyframes float2 {

  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }

  33% {
    transform: translate(40px, -30px) scale(0.9);
  }

  66% {
    transform: translate(-20px, 40px) scale(1.05);
  }
}

@keyframes float3 {

  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }

  50% {
    transform: translate(30px, 30px) scale(1.15);
  }
}

.hero-content {
  position: relative;
  text-align: center;
  z-index: 1;
  padding: var(--sp-4xl) 0;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-sm);
  padding: 0.375rem 1rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--r-full);
  color: rgba(255, 255, 255, 0.9);
  font-size: var(--f-size-xs);
  font-weight: 500;
  letter-spacing: 0.05em;
  backdrop-filter: blur(8px);
  margin-bottom: var(--sp-xl);
  animation: fadeInUp 0.8s ease both;
}

.hero-title {
  font-size: var(--f-size-5xl);
  font-weight: 700;
  color: #fff;
  line-height: 1.3;
  margin-bottom: var(--sp-lg);
  animation: fadeInUp 0.8s ease 0.15s both;
}

.hero-highlight {
  background: linear-gradient(135deg, #60a5fa 0%, #34d399 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: var(--f-size-lg);
  color: rgba(255, 255, 255, 0.7);
  max-width: 540px;
  margin: 0 auto var(--sp-2xl);
  line-height: 1.8;
  animation: fadeInUp 0.8s ease 0.3s both;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-md);
  margin-bottom: var(--sp-3xl);
  animation: fadeInUp 0.8s ease 0.45s both;
}

.hero-actions .btn-primary {
  padding: 0.875rem 2.25rem;
  font-size: var(--f-size-base);
}

.hero-actions .btn-outline {
  border-color: rgba(255, 255, 255, 0.3);
  color: rgba(255, 255, 255, 0.9);
}

.hero-actions .btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
  color: #fff;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-3xl);
  animation: fadeInUp 0.8s ease 0.6s both;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-size: var(--f-size-3xl);
  font-weight: 700;
  color: #fff;
  display: inline;
}

.stat-suffix {
  font-size: var(--f-size-lg);
  color: rgba(255, 255, 255, 0.7);
  font-weight: 500;
}

.stat-label {
  display: block;
  font-size: var(--f-size-xs);
  color: rgba(255, 255, 255, 0.5);
  margin-top: var(--sp-xs);
  letter-spacing: 0.05em;
}

.scroll-indicator {
  position: absolute;
  bottom: var(--sp-2xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-sm);
  color: rgba(255, 255, 255, 0.4);
  font-size: var(--f-size-xs);
  letter-spacing: 0.1em;
  animation: fadeInUp 0.8s ease 0.8s both;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.4), transparent);
  animation: scrollBounce 2s ease-in-out infinite;
}

@keyframes scrollBounce {

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

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

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }

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

/* ===========================
   Sections Common
   =========================== */
.section {
  padding: var(--sp-4xl) 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: var(--sp-3xl);
}

.section-tag {
  display: inline-block;
  font-size: var(--f-size-xs);
  font-weight: 600;
  color: var(--c-primary);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: var(--sp-sm);
  padding: 0.25rem 0.75rem;
  background: var(--c-primary-light);
  border-radius: var(--r-full);
}

.section-title {
  font-size: var(--f-size-3xl);
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: var(--sp-md);
  line-height: 1.3;
}

.section-desc {
  font-size: var(--f-size-base);
  color: var(--c-text-secondary);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ===========================
   Card Grid (Remote Work)
   =========================== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-xl);
}

.card {
  background: var(--c-bg-card);
  border-radius: var(--r-xl);
  padding: var(--sp-2xl);
  border: 1px solid var(--c-border-light);
  box-shadow: var(--shadow-card);
  transition: all var(--t-slow);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-accent));
  opacity: 0;
  transition: opacity var(--t-base);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
  border-color: transparent;
}

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

.card-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: var(--r-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--sp-lg);
}

.card-icon-blue {
  background: var(--c-blue-light);
  color: var(--c-blue);
}

.card-icon-purple {
  background: var(--c-purple-light);
  color: var(--c-purple);
}

.card-icon-teal {
  background: var(--c-teal-light);
  color: var(--c-teal);
}

.card-icon-orange {
  background: var(--c-orange-light);
  color: var(--c-orange);
}

.card-icon-pink {
  background: var(--c-pink-light);
  color: var(--c-pink);
}

.card-icon-green {
  background: var(--c-green-light);
  color: var(--c-green);
}

.card-badge {
  display: inline-block;
  font-size: var(--f-size-xs);
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: var(--r-full);
  margin-bottom: var(--sp-md);
}

.card-badge-green {
  background: var(--c-green-light);
  color: var(--c-green);
}

.card-badge-blue {
  background: var(--c-blue-light);
  color: var(--c-blue);
}

.card-badge-purple {
  background: var(--c-purple-light);
  color: var(--c-purple);
}

.card-badge-pink {
  background: var(--c-pink-light);
  color: var(--c-pink);
}

.card-title {
  font-size: var(--f-size-lg);
  font-weight: 600;
  color: var(--c-text);
  margin-bottom: var(--sp-sm);
}

.card-text {
  font-size: var(--f-size-sm);
  color: var(--c-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--sp-lg);
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-md);
  padding-top: var(--sp-md);
  border-top: 1px solid var(--c-border-light);
}

.card-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: var(--f-size-xs);
  color: var(--c-text-muted);
}

.card-meta-item svg {
  color: var(--c-text-muted);
  flex-shrink: 0;
}

/* ===========================
   Benefits Section
   =========================== */
.section-benefits {
  background: var(--c-bg-alt);
}

.benefit-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--sp-xl);
}

.benefit-item {
  display: flex;
  gap: var(--sp-xl);
  padding: var(--sp-2xl);
  background: var(--c-bg);
  border-radius: var(--r-xl);
  border: 1px solid var(--c-border);
  transition: all var(--t-slow);
  position: relative;
}

.benefit-item:hover {
  border-color: var(--c-primary-light);
  box-shadow: var(--shadow-lg);
  transform: translateX(4px);
}

.benefit-number {
  font-size: var(--f-size-3xl);
  font-weight: 700;
  color: var(--c-primary-light);
  line-height: 1;
  min-width: 48px;
  opacity: 0.6;
  user-select: none;
}

.benefit-content {
  flex: 1;
}

.benefit-header-row {
  display: flex;
  align-items: center;
  gap: var(--sp-md);
  margin-bottom: var(--sp-sm);
  flex-wrap: wrap;
}

.benefit-title {
  font-size: var(--f-size-xl);
  font-weight: 600;
  color: var(--c-text);
}

.benefit-tag {
  display: inline-block;
  font-size: var(--f-size-xs);
  font-weight: 600;
  padding: 0.15rem 0.5rem;
  border-radius: var(--r-full);
  background: var(--c-blue-light);
  color: var(--c-blue);
}

.benefit-desc {
  font-size: var(--f-size-sm);
  color: var(--c-text-secondary);
  margin-bottom: var(--sp-md);
  line-height: 1.7;
}

.benefit-details {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-md);
}

.benefit-detail-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: var(--f-size-xs);
  color: var(--c-text-muted);
}

.benefit-detail-item svg {
  flex-shrink: 0;
}

/* ===========================
   Deals Section
   =========================== */
.deals-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-xl);
}

.deal-card {
  background: var(--c-bg-card);
  border-radius: var(--r-xl);
  padding: var(--sp-2xl);
  border: 1px solid var(--c-border-light);
  box-shadow: var(--shadow-card);
  transition: all var(--t-slow);
}

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

.deal-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: var(--sp-lg);
}

.deal-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--r-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.deal-icon-saving {
  background: linear-gradient(135deg, #fef3c7, #fde68a);
  color: #b45309;
}

.deal-icon-point {
  background: linear-gradient(135deg, #d1fae5, #a7f3d0);
  color: #059669;
}

.deal-icon-sub {
  background: linear-gradient(135deg, #ede9fe, #ddd6fe);
  color: #7c3aed;
}

.deal-icon-mobile {
  background: linear-gradient(135deg, #dbeafe, #bfdbfe);
  color: #2563eb;
}

.deal-icon-energy {
  background: linear-gradient(135deg, #ccfbf1, #99f6e4);
  color: #0d9488;
}

.deal-icon-tax {
  background: linear-gradient(135deg, #fce7f3, #f9a8d4);
  color: #db2777;
}

.deal-save-tag {
  font-size: var(--f-size-xs);
  font-weight: 600;
  color: var(--c-green);
  background: var(--c-green-light);
  padding: 0.2rem 0.6rem;
  border-radius: var(--r-full);
  white-space: nowrap;
}

.deal-title {
  font-size: var(--f-size-lg);
  font-weight: 600;
  color: var(--c-text);
  margin-bottom: var(--sp-sm);
}

.deal-text {
  font-size: var(--f-size-sm);
  color: var(--c-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--sp-lg);
}

.deal-points {
  display: flex;
  flex-direction: column;
  gap: var(--sp-sm);
}

.deal-points li {
  font-size: var(--f-size-sm);
  color: var(--c-text-secondary);
  padding-left: var(--sp-lg);
  position: relative;
}

.deal-points li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-primary);
  opacity: 0.5;
}

/* ===========================
   About Section
   =========================== */
.section-about {
  background: var(--c-bg-alt);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--sp-3xl);
  align-items: center;
}

.about-title {
  text-align: left;
}

.about-text {
  font-size: var(--f-size-base);
  color: var(--c-text-secondary);
  margin-bottom: var(--sp-lg);
  line-height: 1.8;
}

.about-text strong {
  color: var(--c-text);
  font-weight: 600;
}

.trust-badges {
  display: flex;
  flex-direction: column;
  gap: var(--sp-md);
  margin-top: var(--sp-xl);
}

.trust-badge {
  display: flex;
  align-items: center;
  gap: var(--sp-md);
  padding: var(--sp-md) var(--sp-lg);
  background: var(--c-bg);
  border-radius: var(--r-lg);
  border: 1px solid var(--c-border);
  transition: all var(--t-base);
}

.trust-badge:hover {
  border-color: var(--c-primary-light);
  box-shadow: var(--shadow-md);
}

.trust-badge svg {
  color: var(--c-primary);
  flex-shrink: 0;
}

.trust-badge-title {
  display: block;
  font-size: var(--f-size-sm);
  font-weight: 600;
  color: var(--c-text);
}

.trust-badge-desc {
  display: block;
  font-size: var(--f-size-xs);
  color: var(--c-text-muted);
}

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

.about-visual-card {
  width: 100%;
  max-width: 340px;
  aspect-ratio: 1;
  background: linear-gradient(135deg, #1a56db, #0ea5e9);
  border-radius: var(--r-2xl);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 30px 60px -12px rgba(26, 86, 219, 0.25);
  position: relative;
  overflow: hidden;
}

.about-visual-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.15) 0%, transparent 60%);
}

.visual-stat {
  position: relative;
  text-align: center;
  color: white;
}

.visual-stat svg {
  margin: 0 auto var(--sp-lg);
  opacity: 0.9;
}

.visual-stat-text {
  font-size: var(--f-size-lg);
  font-weight: 500;
  line-height: 1.6;
  opacity: 0.9;
}

/* ===========================
   LINE Button Styles
   =========================== */
.btn-line {
  background: #06C755;
  color: #fff;
  box-shadow: 0 4px 14px rgba(6, 199, 85, 0.35);
  font-weight: 600;
}

.btn-line:hover {
  background: #05b04c;
  box-shadow: 0 6px 20px rgba(6, 199, 85, 0.45);
  transform: translateY(-2px);
}

.hero-actions .btn-line {
  padding: 0.875rem 2.25rem;
  font-size: var(--f-size-base);
}

.btn-line-large {
  padding: 1rem 3rem;
  font-size: var(--f-size-lg);
  border-radius: var(--r-full);
  box-shadow: 0 6px 24px rgba(6, 199, 85, 0.4);
}

.btn-line-large:hover {
  box-shadow: 0 8px 32px rgba(6, 199, 85, 0.55);
  transform: translateY(-3px) scale(1.02);
}

/* ===========================
   CTA Section
   =========================== */
.section-cta {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 100%);
  padding: var(--sp-4xl) 0;
  position: relative;
  overflow: hidden;
}

.section-cta::before {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(6, 199, 85, 0.15) 0%, transparent 70%);
  top: -200px;
  right: -100px;
}

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

.cta-title {
  font-size: var(--f-size-2xl);
  font-weight: 700;
  color: #fff;
  margin-bottom: var(--sp-md);
}

.cta-text {
  font-size: var(--f-size-base);
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--sp-2xl);
}

.line-cta-box {
  max-width: 480px;
  margin: 0 auto;
}

.cta-note {
  font-size: var(--f-size-xs);
  color: rgba(255, 255, 255, 0.4);
  margin-top: var(--sp-md);
}

/* ===========================
   Floating LINE Button
   =========================== */
.floating-line-btn {
  position: fixed;
  bottom: var(--sp-xl);
  right: var(--sp-xl);
  z-index: 999;
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
  background: #06C755;
  color: #fff;
  padding: 0.875rem 1.25rem;
  border-radius: var(--r-full);
  box-shadow: 0 6px 24px rgba(6, 199, 85, 0.4), 0 2px 8px rgba(0, 0, 0, 0.15);
  text-decoration: none;
  font-size: var(--f-size-sm);
  font-weight: 600;
  font-family: var(--f-sans);
  transition: all var(--t-base);
  animation: floatingPulse 3s ease-in-out infinite;
}

.floating-line-btn:hover {
  background: #05b04c;
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 10px 32px rgba(6, 199, 85, 0.5), 0 4px 12px rgba(0, 0, 0, 0.2);
  animation: none;
}

.floating-line-label {
  white-space: nowrap;
}

@keyframes floatingPulse {

  0%,
  100% {
    box-shadow: 0 6px 24px rgba(6, 199, 85, 0.4), 0 2px 8px rgba(0, 0, 0, 0.15);
  }

  50% {
    box-shadow: 0 6px 32px rgba(6, 199, 85, 0.6), 0 2px 8px rgba(0, 0, 0, 0.15);
  }
}

/* ===========================
   Footer
   =========================== */
.site-footer {
  background: var(--c-bg-dark);
  color: rgba(255, 255, 255, 0.7);
  padding-top: var(--sp-3xl);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: var(--sp-3xl);
  padding-bottom: var(--sp-2xl);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand {
  max-width: 280px;
}

.footer-logo {
  color: #fff;
  margin-bottom: var(--sp-md);
}

.footer-tagline {
  font-size: var(--f-size-sm);
  color: rgba(255, 255, 255, 0.5);
}

.footer-links {
  display: flex;
  gap: var(--sp-3xl);
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: var(--sp-sm);
}

.footer-col-title {
  font-size: var(--f-size-sm);
  font-weight: 600;
  color: #fff;
  margin-bottom: var(--sp-sm);
}

.footer-col a {
  font-size: var(--f-size-sm);
  color: rgba(255, 255, 255, 0.5);
  transition: color var(--t-base);
}

.footer-col a:hover {
  color: rgba(255, 255, 255, 0.9);
}

.footer-bottom {
  padding: var(--sp-lg) 0;
}

.footer-bottom p {
  font-size: var(--f-size-xs);
  color: rgba(255, 255, 255, 0.3);
  text-align: center;
}

/* ===========================
   Scroll-triggered Animations
   =========================== */
.card,
.benefit-item,
.deal-card,
.trust-badge,
.about-visual-card {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease, box-shadow var(--t-slow), border-color var(--t-base);
}

.card.in-view,
.benefit-item.in-view,
.deal-card.in-view,
.trust-badge.in-view,
.about-visual-card.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* ===========================
   Responsive Design
   =========================== */
.sp-only {
  display: none;
}

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

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

  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--sp-2xl);
  }

  .about-title {
    text-align: center;
  }

  .about-content {
    text-align: center;
  }

  .trust-badges {
    align-items: center;
  }
}

@media (max-width: 768px) {
  :root {
    --f-size-5xl: 2.25rem;
    --f-size-3xl: 1.625rem;
    --f-size-2xl: 1.375rem;
  }

  .sp-only {
    display: inline;
  }

  .main-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    gap: var(--sp-2xl);
    padding: var(--sp-2xl);
    transition: right var(--t-slow);
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.1);
  }

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

  .nav-link {
    font-size: var(--f-size-lg);
  }

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

  .card-grid {
    grid-template-columns: 1fr;
    gap: var(--sp-lg);
  }

  .deals-grid {
    grid-template-columns: 1fr;
    gap: var(--sp-lg);
  }

  .hero-stats {
    gap: var(--sp-xl);
  }

  .benefit-item {
    flex-direction: column;
    gap: var(--sp-md);
  }

  .benefit-number {
    font-size: var(--f-size-xl);
  }

  .footer-inner {
    flex-direction: column;
    gap: var(--sp-2xl);
  }

  .footer-links {
    gap: var(--sp-2xl);
  }

  .section {
    padding: var(--sp-3xl) 0;
  }

  .cta-input-wrap {
    flex-direction: column;
    border-radius: var(--r-xl);
    gap: var(--sp-sm);
    padding: var(--sp-sm);
  }

  .cta-btn {
    border-radius: var(--r-full);
    width: 100%;
  }
}

@media (max-width: 480px) {
  :root {
    --f-size-5xl: 1.875rem;
    --f-size-3xl: 1.375rem;
  }

  .container {
    padding: 0 var(--sp-lg);
  }

  .hero-stats {
    flex-direction: column;
    gap: var(--sp-lg);
  }
}