/* ========================================
   NEXCORE - ECモール最適化エンジン LP
   ガジェット系・最先端系デザイン
   ======================================== */

/* ---------- CSS Variables ---------- */
:root {
  --color-bg: #070b14;
  --color-bg2: #0d1526;
  --color-bg3: #111d35;
  --color-surface: #0f1a2e;
  --color-surface2: #162038;
  --color-border: rgba(56, 189, 248, 0.15);
  --color-border2: rgba(56, 189, 248, 0.08);

  --color-primary: #38bdf8;
  --color-primary-dark: #0284c7;
  --color-primary-glow: rgba(56, 189, 248, 0.25);
  --color-secondary: #818cf8;
  --color-accent: #34d399;
  --color-warn: #fbbf24;

  --color-text: #e2e8f0;
  --color-text-muted: #94a3b8;
  --color-text-faint: #475569;

  --gradient-primary: linear-gradient(135deg, #38bdf8 0%, #818cf8 100%);
  --gradient-hero: linear-gradient(135deg, #38bdf8 0%, #6366f1 60%, #a855f7 100%);
  --gradient-card: linear-gradient(145deg, #111d35 0%, #0d1526 100%);
  --gradient-popular: linear-gradient(145deg, #1e2d50 0%, #152040 100%);

  --font-main: 'Noto Sans JP', 'Inter', sans-serif;
  --font-display: 'Orbitron', 'Inter', monospace;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --shadow-card: 0 4px 30px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(56, 189, 248, 0.2);
  --shadow-primary: 0 8px 32px rgba(56, 189, 248, 0.3);

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 0.15s ease;
}

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

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

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-main);
  line-height: 1.7;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; }
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: #7dd3fc; }
ul { list-style: none; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-pad { padding: 100px 0; }

.pc-only { display: block; }

/* ---------- Gradient Text ---------- */
.gradient-text {
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---------- Section Header ---------- */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}
.section-tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--color-primary);
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.25);
  border-radius: 100px;
  padding: 5px 16px;
  margin-bottom: 16px;
}
.section-title {
  font-family: var(--font-main);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  color: #f1f5f9;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.section-desc {
  font-size: 16px;
  color: var(--color-text-muted);
  line-height: 1.9;
  max-width: 600px;
  margin: 0 auto;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: var(--shadow-primary);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(56, 189, 248, 0.45);
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid rgba(56, 189, 248, 0.5);
}
.btn-outline:hover {
  background: rgba(56, 189, 248, 0.08);
  border-color: var(--color-primary);
  transform: translateY(-2px);
  color: var(--color-primary);
}

.btn-outline-sm {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid rgba(56, 189, 248, 0.4);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}
.btn-outline-sm:hover {
  background: rgba(56, 189, 248, 0.08);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-plan {
  display: block;
  width: 100%;
  text-align: center;
  background: rgba(56, 189, 248, 0.08);
  border: 1.5px solid rgba(56, 189, 248, 0.3);
  color: var(--color-primary);
  padding: 13px 20px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}
.btn-plan:hover {
  background: rgba(56, 189, 248, 0.15);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

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

/* ---------- NAVBAR ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 16px 0;
  transition: all var(--transition);
}
.navbar.scrolled {
  background: rgba(7, 11, 20, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  padding: 10px 0;
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.logo-icon {
  font-size: 22px;
  color: var(--color-primary);
  filter: drop-shadow(0 0 8px rgba(56, 189, 248, 0.5));
}
.logo-text {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: #f1f5f9;
  letter-spacing: 0.08em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-links a {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: all var(--transition-fast);
  text-decoration: none;
}
.nav-links a:hover {
  color: var(--color-text);
  background: rgba(255,255,255,0.05);
}
.nav-links a.nav-cta {
  background: var(--gradient-primary);
  color: #fff;
  padding: 8px 20px;
  font-weight: 600;
  font-size: 14px;
  box-shadow: 0 4px 16px rgba(56, 189, 248, 0.3);
}
.nav-links a.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(56, 189, 248, 0.4);
  color: #fff;
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ---------- HERO ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 120px 24px 80px;
}

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

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(56, 189, 248, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56, 189, 248, 0.06) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 40%, transparent 100%);
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.3;
}
.orb1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, #0ea5e9 0%, transparent 70%);
  top: -100px; left: -100px;
  animation: orbFloat1 8s ease-in-out infinite;
}
.orb2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, #818cf8 0%, transparent 70%);
  bottom: -50px; right: -50px;
  animation: orbFloat2 10s ease-in-out infinite;
}
.orb3 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, #34d399 0%, transparent 70%);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  animation: orbFloat3 12s ease-in-out infinite;
}

@keyframes orbFloat1 {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(30px, 20px); }
}
@keyframes orbFloat2 {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(-20px, -30px); }
}
@keyframes orbFloat3 {
  0%, 100% { transform: translate(-50%, -50%) scale(1); }
  50% { transform: translate(-50%, -50%) scale(1.1); opacity: 0.15; }
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
  width: 100%;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.3);
  border-radius: 100px;
  padding: 7px 20px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.05em;
  margin-bottom: 28px;
  animation: fadeInDown 0.8s ease both;
}

.hero-title {
  font-size: clamp(38px, 6vw, 72px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.03em;
  color: #f8fafc;
  margin-bottom: 24px;
  animation: fadeInUp 0.8s ease 0.1s both;
}

.hero-sub {
  font-size: clamp(15px, 2vw, 18px);
  color: var(--color-text-muted);
  line-height: 1.9;
  margin-bottom: 40px;
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 60px;
  animation: fadeInUp 0.8s ease 0.3s both;
}

.hero-stats {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 24px 48px;
  backdrop-filter: blur(10px);
  width: fit-content;
  margin: 0 auto;
  animation: fadeInUp 0.8s ease 0.4s both;
}
.stat-item {
  text-align: center;
  padding: 0 32px;
}
.stat-num {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 700;
  color: var(--color-primary);
}
.stat-unit {
  font-size: 16px;
  color: var(--color-primary);
  font-weight: 600;
}
.stat-label {
  display: block;
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: 4px;
  letter-spacing: 0.03em;
}
.stat-divider {
  width: 1px;
  height: 48px;
  background: var(--color-border);
}

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--color-text-faint);
  font-size: 10px;
  letter-spacing: 0.2em;
  font-family: var(--font-display);
}
.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--color-text-faint), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

/* ---------- FEATURES ---------- */
.features {
  background: var(--color-bg2);
  position: relative;
}
.features::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--gradient-card);
  border: 1px solid var(--color-border2);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  position: relative;
  overflow: hidden;
  transition: all var(--transition);
  opacity: 0;
  transform: translateY(30px);
}
.feature-card.visible {
  opacity: 1;
  transform: translateY(0);
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition);
}
.feature-card:hover::before { opacity: 1; }
.feature-card:hover {
  border-color: rgba(56, 189, 248, 0.3);
  transform: translateY(-6px);
  box-shadow: var(--shadow-card), var(--shadow-glow);
}

.feature-card.featured {
  border-color: rgba(56, 189, 248, 0.25);
  background: linear-gradient(145deg, #1a2540 0%, #0f1a2e 100%);
}
.featured-badge {
  position: absolute;
  top: 16px; right: 16px;
  background: var(--gradient-primary);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  font-family: var(--font-display);
  padding: 4px 12px;
  border-radius: 100px;
}

.feature-icon-wrap {
  position: relative;
  width: 64px;
  height: 64px;
  margin-bottom: 24px;
}
.feature-icon {
  width: 64px;
  height: 64px;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.2);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  color: var(--color-primary);
  position: relative;
  z-index: 1;
}
.feature-icon-glow {
  position: absolute;
  inset: -4px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.2) 0%, transparent 70%);
  border-radius: var(--radius-md);
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: #f1f5f9;
  margin-bottom: 12px;
}
.feature-card p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 20px;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.feature-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--color-text-muted);
}
.feature-list li i {
  color: var(--color-accent);
  font-size: 11px;
  flex-shrink: 0;
}

/* ---------- HOW IT WORKS ---------- */
.how-section {
  background: var(--color-bg);
  position: relative;
}

.steps-row {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.step-item {
  flex: 1;
  text-align: center;
  padding: 32px 16px;
  background: var(--gradient-card);
  border: 1px solid var(--color-border2);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}
.step-item:hover {
  border-color: rgba(56, 189, 248, 0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}
.step-num {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 900;
  color: rgba(56, 189, 248, 0.2);
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}
.step-icon {
  font-size: 28px;
  color: var(--color-primary);
  margin-bottom: 16px;
}
.step-item h4 {
  font-size: 15px;
  font-weight: 700;
  color: #f1f5f9;
  margin-bottom: 8px;
}
.step-item p {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.7;
}
.step-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-faint);
  font-size: 14px;
  padding-top: 60px;
  flex-shrink: 0;
}

/* ---------- PLANS ---------- */
.plans-section {
  background: var(--color-bg2);
  position: relative;
}
.plans-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(129, 140, 248, 0.5), transparent);
}

.plans-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 40px;
  align-items: start;
}

.plan-card {
  background: var(--gradient-card);
  border: 1px solid var(--color-border2);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  position: relative;
  opacity: 0;
  transform: translateY(20px);
}
.plan-card.visible {
  opacity: 1;
  transform: translateY(0);
}
.plan-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card), var(--shadow-glow);
  border-color: rgba(56, 189, 248, 0.3);
}

.plan-card.popular {
  border-color: rgba(56, 189, 248, 0.4);
  background: var(--gradient-popular);
  box-shadow: 0 4px 30px rgba(56, 189, 248, 0.15);
}
.plan-card.popular:hover {
  box-shadow: 0 16px 50px rgba(56, 189, 248, 0.3);
}
.popular-badge {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-primary);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  font-family: var(--font-display);
  padding: 5px 20px;
  border-radius: 0 0 12px 12px;
  white-space: nowrap;
}

.plan-card.executive {
  border-color: rgba(129, 140, 248, 0.35);
  background: linear-gradient(145deg, #181e35 0%, #0f1428 100%);
}

.plan-header {
  padding: 32px 24px 24px;
  border-bottom: 1px solid var(--color-border2);
}
.plan-card.popular .plan-header { padding-top: 48px; }

.plan-tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--color-primary);
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.2);
  border-radius: 100px;
  padding: 3px 10px;
  margin-bottom: 8px;
}
.plan-name {
  font-size: 17px;
  font-weight: 700;
  color: #f1f5f9;
  margin-bottom: 16px;
}
.plan-price {
  margin-bottom: 6px;
}
.price-num {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  color: var(--color-primary);
}
.price-unit {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-left: 2px;
}
.plan-type {
  font-size: 12px;
  color: var(--color-accent);
  font-weight: 600;
  display: inline-block;
  background: rgba(52, 211, 153, 0.08);
  border: 1px solid rgba(52, 211, 153, 0.2);
  border-radius: 100px;
  padding: 2px 10px;
}

.plan-body { padding: 24px; }
.plan-support {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--color-text-muted);
  background: rgba(56, 189, 248, 0.05);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  margin-bottom: 20px;
}
.plan-support i { color: var(--color-primary); }
.plan-support strong { color: var(--color-primary); }

.plan-features {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
}
.plan-features li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.5;
}
.plan-features li i {
  color: var(--color-accent);
  font-size: 12px;
  margin-top: 2px;
  flex-shrink: 0;
}

.plans-option-box {
  display: flex;
  align-items: center;
  gap: 20px;
  background: rgba(56, 189, 248, 0.05);
  border: 1px solid rgba(56, 189, 248, 0.15);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
}
.option-icon {
  font-size: 28px;
  color: var(--color-primary);
  flex-shrink: 0;
}
.option-text { flex: 1; }
.option-text h4 {
  font-size: 16px;
  font-weight: 700;
  color: #f1f5f9;
  margin-bottom: 4px;
}
.option-text p {
  font-size: 13px;
  color: var(--color-text-muted);
}
.option-text strong { color: var(--color-primary); }

/* ---------- SUPPORT ---------- */
.support-section {
  background: var(--color-bg);
}
.support-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.support-card {
  background: var(--gradient-card);
  border: 1px solid var(--color-border2);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center;
  transition: all var(--transition);
}
.support-card:hover {
  transform: translateY(-4px);
  border-color: rgba(56, 189, 248, 0.3);
  box-shadow: var(--shadow-card);
}
.support-icon {
  font-size: 32px;
  color: var(--color-primary);
  margin-bottom: 16px;
}
.support-card h4 {
  font-size: 16px;
  font-weight: 700;
  color: #f1f5f9;
  margin-bottom: 10px;
}
.support-card p {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.8;
}

/* ---------- FAQ ---------- */
.faq-section {
  background: var(--color-bg2);
}
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: var(--gradient-card);
  border: 1px solid var(--color-border2);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition);
}
.faq-item:hover { border-color: rgba(56, 189, 248, 0.25); }

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  background: none;
  border: none;
  cursor: pointer;
  color: #f1f5f9;
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font-main);
  text-align: left;
  transition: color var(--transition-fast);
}
.faq-question:hover { color: var(--color-primary); }
.faq-question[aria-expanded="true"] { color: var(--color-primary); }

.faq-icon {
  color: var(--color-primary);
  font-size: 13px;
  flex-shrink: 0;
  transition: transform var(--transition);
}
.faq-question[aria-expanded="true"] .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
}
.faq-answer.open {
  max-height: 300px;
}
.faq-answer p {
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.8;
  border-top: 1px solid var(--color-border2);
  padding-top: 16px;
}

/* ---------- COOLING OFF ---------- */
.coolingoff-section {
  background: var(--color-bg);
}
.coolingoff-box {
  display: flex;
  gap: 32px;
  background: linear-gradient(145deg, rgba(56, 189, 248, 0.08) 0%, rgba(56, 189, 248, 0.03) 100%);
  border: 1.5px solid rgba(56, 189, 248, 0.3);
  border-radius: var(--radius-xl);
  padding: 48px;
}
.coolingoff-icon {
  font-size: 48px;
  color: var(--color-primary);
  flex-shrink: 0;
  padding-top: 4px;
  filter: drop-shadow(0 0 12px rgba(56, 189, 248, 0.4));
}
.coolingoff-content h2 {
  font-size: 26px;
  font-weight: 700;
  color: #f1f5f9;
  margin-bottom: 12px;
}
.coolingoff-lead {
  font-size: 15px;
  color: var(--color-text-muted);
  margin-bottom: 28px;
  line-height: 1.8;
}
.coolingoff-lead strong { color: var(--color-primary); }

.coolingoff-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}
.co-item {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--color-border2);
  border-radius: var(--radius-md);
  padding: 16px 20px;
}
.co-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}
.co-value {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.7;
}
.co-value strong { color: var(--color-text); }

.coolingoff-notice {
  display: flex;
  gap: 12px;
  background: rgba(251, 191, 36, 0.06);
  border: 1px solid rgba(251, 191, 36, 0.2);
  border-radius: var(--radius-md);
  padding: 20px;
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.8;
}
.coolingoff-notice > i {
  color: var(--color-warn);
  font-size: 16px;
  flex-shrink: 0;
  margin-top: 2px;
}
.coolingoff-notice strong { color: var(--color-text); }

/* ---------- COMPANY ---------- */
.company-section {
  background: var(--color-bg2);
}
.company-table-wrap {
  max-width: 800px;
  margin: 0 auto;
}
.company-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--gradient-card);
  border: 1px solid var(--color-border2);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.company-table th,
.company-table td {
  padding: 18px 24px;
  text-align: left;
  font-size: 14px;
  border-bottom: 1px solid var(--color-border2);
}
.company-table tr:last-child th,
.company-table tr:last-child td { border-bottom: none; }
.company-table th {
  width: 160px;
  color: var(--color-primary);
  font-weight: 600;
  background: rgba(56, 189, 248, 0.04);
  white-space: nowrap;
}
.company-table td { color: var(--color-text-muted); }
.company-table a { color: var(--color-primary); }

/* ---------- CONTACT ---------- */
.contact-section {
  background: var(--color-bg);
  position: relative;
  overflow: hidden;
}
.contact-section::before {
  content: '';
  position: absolute;
  top: -200px; right: -200px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.06) 0%, transparent 70%);
  border-radius: 50%;
}
.contact-box {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 60px;
  align-items: start;
}
.contact-left h2 {
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 700;
  color: #f1f5f9;
  margin: 12px 0 16px;
  line-height: 1.4;
}
.contact-left p {
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 32px;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px 20px;
  background: var(--gradient-card);
  border: 1px solid var(--color-border2);
  border-radius: var(--radius-md);
}
.contact-info-item > i {
  font-size: 18px;
  color: var(--color-primary);
  margin-top: 4px;
  flex-shrink: 0;
}
.contact-info-label {
  display: block;
  font-size: 11px;
  color: var(--color-text-faint);
  font-weight: 600;
  letter-spacing: 0.1em;
  margin-bottom: 4px;
}
.contact-info-value {
  display: block;
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
}

/* Contact Form */
.contact-form {
  background: var(--gradient-card);
  border: 1px solid var(--color-border2);
  border-radius: var(--radius-xl);
  padding: 40px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-group {
  margin-bottom: 16px;
}
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}
.required {
  color: #f87171;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-size: 14px;
  color: var(--color-text);
  font-family: var(--font-main);
  outline: none;
  transition: border-color var(--transition);
  -webkit-appearance: none;
  appearance: none;
}
.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24'%3E%3Cpath stroke='%2338bdf8' stroke-width='2' d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
  padding-right: 40px;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.12);
}
.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-faint);
}
.form-group select option {
  background: #0d1526;
  color: var(--color-text);
}
.form-group textarea { resize: vertical; }

.form-check {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 20px;
}
.form-check input[type="checkbox"] {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  accent-color: var(--color-primary);
  margin-top: 2px;
}
.form-check label {
  font-size: 13px;
  color: var(--color-text-muted);
  cursor: pointer;
  line-height: 1.6;
}
.form-check label a {
  color: var(--color-primary);
  text-decoration: underline;
}

.form-notice {
  text-align: center;
  font-size: 12px;
  color: var(--color-text-faint);
  margin-top: 12px;
}
.form-success {
  text-align: center;
  padding: 60px 40px;
}
.form-success i {
  font-size: 48px;
  color: var(--color-accent);
  margin-bottom: 16px;
}
.form-success h4 {
  font-size: 20px;
  font-weight: 700;
  color: #f1f5f9;
  margin-bottom: 8px;
}
.form-success p {
  font-size: 14px;
  color: var(--color-text-muted);
}

/* ---------- FOOTER ---------- */
.footer {
  background: #040810;
  border-top: 1px solid var(--color-border2);
  padding: 60px 0 32px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.2fr 1.8fr;
  gap: 60px;
  margin-bottom: 48px;
}
.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-brand .logo-icon { font-size: 24px; }
.footer-brand .logo-text { font-size: 22px; }
.footer-brand p {
  font-size: 13px;
  color: var(--color-text-faint);
  line-height: 1.8;
  margin-top: 8px;
}
.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.footer-link-col h5 {
  font-size: 12px;
  font-weight: 700;
  color: var(--color-text-muted);
  letter-spacing: 0.12em;
  margin-bottom: 16px;
}
.footer-link-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-link-col a {
  font-size: 13px;
  color: var(--color-text-faint);
  transition: color var(--transition-fast);
  text-decoration: none;
}
.footer-link-col a:hover { color: var(--color-primary); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border2);
}
.footer-bottom p {
  font-size: 12px;
  color: var(--color-text-faint);
}
.footer-legal-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}
.footer-legal-links a {
  font-size: 12px;
  color: var(--color-text-faint);
  transition: color var(--transition-fast);
  text-decoration: none;
}
.footer-legal-links a:hover { color: var(--color-primary); }

/* ---------- MODALS ---------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(4, 8, 16, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal-box {
  background: var(--color-bg3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  max-width: 780px;
  width: 100%;
  max-height: 85vh;
  overflow: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
  transform: translateY(20px) scale(0.98);
  transition: transform 0.3s ease;
}
.modal-overlay.open .modal-box {
  transform: translateY(0) scale(1);
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--color-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--color-text-muted);
  font-size: 16px;
  transition: all var(--transition-fast);
  z-index: 10;
}
.modal-close:hover {
  background: rgba(255,255,255,0.1);
  color: #f1f5f9;
}

.modal-content {
  padding: 40px 44px;
  overflow-y: auto;
  flex: 1;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) transparent;
}
.modal-content::-webkit-scrollbar { width: 6px; }
.modal-content::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 3px; }

.modal-content h2 {
  font-size: 24px;
  font-weight: 700;
  color: #f1f5f9;
  margin-bottom: 4px;
  padding-right: 40px;
}
.modal-date {
  font-size: 12px;
  color: var(--color-text-faint);
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border2);
}
.modal-content h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-primary);
  margin: 24px 0 10px;
  padding-left: 12px;
  border-left: 3px solid var(--color-primary);
}
.modal-content p {
  font-size: 13.5px;
  color: var(--color-text-muted);
  line-height: 1.9;
  margin-bottom: 10px;
}
.modal-content ul, .modal-content ol {
  padding-left: 20px;
  margin-bottom: 10px;
}
.modal-content ul { list-style: disc; }
.modal-content ol { list-style: decimal; }
.modal-content li {
  font-size: 13.5px;
  color: var(--color-text-muted);
  line-height: 1.9;
  margin-bottom: 4px;
}

.legal-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 16px;
  font-size: 13.5px;
}
.legal-table th, .legal-table td {
  padding: 10px 14px;
  border: 1px solid var(--color-border2);
  text-align: left;
  line-height: 1.7;
}
.legal-table th {
  background: rgba(56, 189, 248, 0.05);
  color: var(--color-primary);
  font-weight: 600;
  width: 140px;
  white-space: nowrap;
}
.legal-table td { color: var(--color-text-muted); }

.legal-highlight {
  background: rgba(56, 189, 248, 0.06);
  border: 1.5px solid rgba(56, 189, 248, 0.25);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin-bottom: 16px;
}
.legal-highlight p {
  margin-bottom: 12px;
}
.legal-highlight strong { color: var(--color-primary); }

.legal-end {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border2);
  font-size: 13px;
  color: var(--color-text-faint);
  text-align: right;
  line-height: 2;
}

/* ---------- BACK TO TOP ---------- */
.back-to-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 44px;
  height: 44px;
  background: var(--gradient-primary);
  border: none;
  border-radius: 50%;
  color: #fff;
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-primary);
  opacity: 0;
  transform: translateY(16px);
  transition: all var(--transition);
  z-index: 999;
}
.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
}
.back-to-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(56, 189, 248, 0.5);
}

/* ---------- Animations ---------- */
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- Particles ---------- */
.hero-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
}
.particle {
  position: absolute;
  width: 2px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 50%;
  opacity: 0;
  animation: particleAnim var(--duration, 6s) var(--delay, 0s) ease-in infinite;
}
@keyframes particleAnim {
  0% { opacity: 0; transform: translateY(0) scale(0); }
  10% { opacity: 0.8; transform: translateY(-10px) scale(1); }
  90% { opacity: 0.3; }
  100% { opacity: 0; transform: translateY(-100px) scale(0.5); }
}

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

/* Tablet */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: 1fr 1fr; }
  .plans-grid { grid-template-columns: 1fr 1fr; }
  .support-grid { grid-template-columns: 1fr 1fr; }
  .steps-row { flex-wrap: wrap; }
  .step-arrow { display: none; }
  .step-item { flex: 0 0 calc(50% - 10px); }
  .contact-box { grid-template-columns: 1fr; gap: 40px; }
  .footer-top { grid-template-columns: 1fr; gap: 40px; }
  .footer-links { grid-template-columns: repeat(3, 1fr); }
  .coolingoff-grid { grid-template-columns: 1fr; }
}

/* Mobile */
@media (max-width: 768px) {
  .section-pad { padding: 72px 0; }
  .pc-only { display: none; }

  /* Nav */
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: #0a1020;
    border-left: 1px solid var(--color-border);
    flex-direction: column;
    align-items: flex-start;
    padding: 80px 24px 40px;
    gap: 4px;
    transition: right var(--transition);
    z-index: 999;
  }
  .nav-links.open { right: 0; }
  .nav-links a {
    width: 100%;
    padding: 12px 16px;
    font-size: 15px;
  }
  .nav-hamburger { display: flex; z-index: 1001; }
  .nav-hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
  .nav-hamburger.open span:nth-child(2) { opacity: 0; }
  .nav-hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

  /* Hero */
  .hero { padding: 100px 24px 60px; }
  .hero-stats { padding: 20px 24px; flex-direction: column; gap: 20px; }
  .stat-divider { width: 60px; height: 1px; }
  .stat-item { padding: 0; }

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

  /* Plans */
  .plans-grid { grid-template-columns: 1fr; }
  .plan-card { max-width: 400px; margin: 0 auto; width: 100%; }

  /* Support */
  .support-grid { grid-template-columns: 1fr 1fr; }

  /* Steps */
  .step-item { flex: 0 0 100%; }

  /* Cooling off */
  .coolingoff-box { flex-direction: column; gap: 20px; padding: 28px; }
  .coolingoff-icon { font-size: 36px; }

  /* Contact */
  .form-row { grid-template-columns: 1fr; }
  .contact-form { padding: 28px 20px; }

  /* Footer */
  .footer-links { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .footer-legal-links { justify-content: center; }

  /* Plans option */
  .plans-option-box { flex-direction: column; text-align: center; gap: 16px; }

  /* Modal */
  .modal-content { padding: 28px 20px; }
  .modal-content h2 { font-size: 20px; }
  .legal-table th { width: 100px; }
}

@media (max-width: 480px) {
  .support-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; align-items: center; }
  .footer-links { grid-template-columns: 1fr; }
  .coolingoff-grid { grid-template-columns: 1fr; }
  .hero-stats { width: 100%; }
}