/* ========================================
   Betly Website - Linear-inspired Design
   Dark theme with subtle gradients
   ======================================== */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Core Colors - Dark Theme */
  --bg-primary: #000000;
  --bg-secondary: #0a0a0a;
  --bg-tertiary: #111111;
  --bg-card: #141414;
  --bg-card-hover: #1a1a1a;

  /* Text Colors */
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.7);
  --text-tertiary: rgba(255, 255, 255, 0.5);
  --text-muted: rgba(255, 255, 255, 0.35);

  /* Accent Colors - Betly Brand */
  --accent-primary: #ff8b7b;
  --accent-secondary: #ff6b5a;
  --accent-glow: rgba(255, 139, 123, 0.4);

  /* Borders */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-light: rgba(255, 255, 255, 0.12);
  --border-medium: rgba(255, 255, 255, 0.2);

  /* Gradients */
  --gradient-accent: linear-gradient(135deg, #ff8b7b 0%, #ff6b5a 100%);
  --gradient-subtle: linear-gradient(180deg, rgba(255, 255, 255, 0.05) 0%, transparent 100%);
  --gradient-glow: radial-gradient(
    ellipse 80% 50% at 50% -20%,
    rgba(255, 139, 123, 0.15),
    transparent
  );

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.5);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 40px var(--accent-glow);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family:
    'Inter',
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    Roboto,
    sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

/* ========================================
   Navigation
   ======================================== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

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

.nav-actions {
  display: flex;
  gap: 12px;
}

/* ========================================
   Buttons
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-nav {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-light);
}

.btn-nav:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-medium);
}

.btn-primary {
  background: var(--gradient-accent);
  color: #000;
  font-weight: 600;
}

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

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-light);
}

.btn-ghost:hover {
  color: var(--text-primary);
  border-color: var(--border-medium);
  background: rgba(255, 255, 255, 0.05);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-light);
}

.btn-outline:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.btn-large {
  padding: 14px 28px;
  font-size: 1rem;
}

/* ========================================
   Hero Section - Linear Style (Overlapping)
   ======================================== */
.hero {
  position: relative;
  min-height: 100vh;
  padding-top: 100px;
  padding-bottom: 0;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  height: 400px;
  background: radial-gradient(
    ellipse 50% 40% at 50% 0%,
    rgba(255, 139, 123, 0.08),
    transparent 70%
  );
  pointer-events: none;
  z-index: 1;
}

.hero .container {
  position: relative;
  z-index: 3;
}

.hero-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  padding-bottom: 32px;
}

.hero-title {
  font-size: 3rem;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}

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

.hero-subtitle {
  font-size: 1rem;
  color: var(--text-tertiary);
  line-height: 1.7;
  margin-bottom: 24px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  white-space: nowrap;
}

.hero-cta {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
  z-index: 3;
}

/* Hero Showcase - Linear Style Overlapping Image */
.hero-showcase {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 48px);
  max-width: 1400px;
  z-index: 1;
}

.hero-image-wrapper {
  position: relative;
  width: 100%;
}

.hero-image {
  width: 100%;
  height: auto;
  border-radius: 12px 12px 0 0;
  border-bottom: none;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.05),
    0 -20px 60px -15px rgba(0, 0, 0, 0.3),
    0 40px 80px -20px rgba(0, 0, 0, 0.4);
  transform: perspective(2500px) rotateX(12deg);
  transform-origin: center bottom;
}

.hero-image-glow {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translate(-50%, -30%);
  width: 80%;
  height: 50%;
  background: radial-gradient(ellipse 60% 50% at 50% 50%, rgba(255, 139, 123, 0.12), transparent);
  pointer-events: none;
  filter: blur(80px);
  z-index: -1;
}

/* ========================================
   Customers Section
   ======================================== */
.customers {
  padding: 100px 0;
  background: var(--bg-primary);
}

.customers-header {
  text-align: center;
  margin-bottom: 64px;
}

.customers-title {
  font-size: 2rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.customers-subtitle {
  font-size: 1.1rem;
  color: var(--text-tertiary);
}

.customers-grid {
  display: flex;
  flex-direction: column;
  gap: 32px;
  max-width: 1000px;
  margin: 0 auto;
}

.customers-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  justify-items: center;
  align-items: center;
}

.customer-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 60px;
  width: 100%;
  max-width: 200px;
}

.customer-logo img {
  max-height: 48px;
  max-width: 160px;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: grayscale(100%) brightness(2);
  opacity: 0.7;
  transition: all 0.3s ease;
}

.customer-logo:hover img {
  filter: grayscale(0%) brightness(1);
  opacity: 1;
}

.customer-placeholder {
  border: 1px dashed var(--border-light);
  border-radius: 8px;
  padding: 16px 24px;
}

.customer-placeholder span {
  font-size: 0.9rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

@media (max-width: 768px) {
  .customers {
    padding: 60px 0;
  }

  .customers-title {
    font-size: 1.5rem;
  }

  .customers-row {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .customer-logo {
    height: 50px;
  }

  .customer-logo img {
    max-height: 36px;
    max-width: 120px;
  }
}

/* ========================================
   Section Common Styles
   ======================================== */
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px;
}

.section-label {
  display: inline-block;
  font-size: 0.85rem;
  color: var(--accent-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ========================================
   Features Section
   ======================================== */
.features {
  padding: 100px 0;
  background: var(--bg-secondary);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  padding: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  transition: all 0.3s;
}

.feature-card:hover {
  border-color: var(--border-light);
  transform: translateY(-2px);
}

.feature-card-large {
  grid-column: span 1;
  grid-row: span 2;
}

.feature-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 139, 123, 0.1);
  border-radius: 10px;
  margin-bottom: 20px;
  color: var(--accent-primary);
}

.feature-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.feature-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.feature-list {
  list-style: none;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--border-subtle);
}

.feature-list li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  padding: 6px 0;
  padding-left: 20px;
  position: relative;
}

.feature-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  background: var(--accent-primary);
  border-radius: 50%;
}

/* ========================================
   AI Section
   ======================================== */
.ai-section {
  padding: 100px 0;
  background: var(--bg-primary);
  position: relative;
}

.ai-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 400px;
  background: radial-gradient(ellipse 60% 50% at 50% 0%, rgba(255, 139, 123, 0.08), transparent);
  pointer-events: none;
}

.ai-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.ai-card {
  padding: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  transition: all 0.3s;
}

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

.ai-card-header {
  margin-bottom: 16px;
}

.ai-badge {
  display: inline-block;
  padding: 4px 10px;
  background: rgba(255, 139, 123, 0.1);
  border: 1px solid rgba(255, 139, 123, 0.2);
  border-radius: 6px;
  font-size: 0.75rem;
  color: var(--accent-primary);
  font-weight: 500;
}

.ai-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.ai-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ========================================
   Security Section
   ======================================== */
.security-section {
  padding: 100px 0;
  background: var(--bg-secondary);
}

.security-content {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 60px;
  align-items: center;
}

.security-text {
  max-width: 560px;
}

.security-text .section-title {
  text-align: left;
}

.security-text .section-desc {
  text-align: left;
  margin-bottom: 32px;
}

.security-list {
  list-style: none;
}

.security-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.security-list svg {
  color: var(--accent-primary);
  flex-shrink: 0;
}

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

.security-badge {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  min-width: 160px;
}

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

.badge-text {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
}

/* ========================================
   Pricing Section
   ======================================== */
.pricing-section {
  padding: 100px 0;
  background: var(--bg-primary);
}

/* Billing Toggle */
.billing-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 48px;
}

.billing-label {
  font-size: 0.95rem;
  color: var(--text-tertiary);
  cursor: pointer;
  transition: color 0.2s;
}

.billing-label-active {
  color: var(--text-primary);
  font-weight: 500;
}

.toggle-switch {
  position: relative;
  display: inline-block;
  width: 48px;
  height: 26px;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-light);
  border-radius: 26px;
  transition: all 0.3s;
}

.toggle-slider::before {
  position: absolute;
  content: '';
  height: 20px;
  width: 20px;
  left: 2px;
  bottom: 2px;
  background-color: #fff;
  border-radius: 50%;
  transition: all 0.3s;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.toggle-switch input:checked + .toggle-slider {
  background: var(--gradient-accent);
  border-color: var(--accent-primary);
}

.toggle-switch input:checked + .toggle-slider::before {
  transform: translateX(22px);
}

/* 初装费区块 */
.setup-fee-block {
  max-width: 560px;
  margin: 0 auto 48px;
  padding: 24px 28px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
}

.setup-fee-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-subtle);
}

.setup-fee-hint {
  font-size: 0.85rem;
  color: var(--text-tertiary);
  margin: 0 0 16px 0;
}

.setup-fee-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.setup-fee-item {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 8px 16px;
  padding: 10px 0;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.setup-fee-item:not(:last-child) {
  border-bottom: 1px solid var(--border-subtle);
}

.setup-fee-label {
  color: var(--text-primary);
}

.setup-fee-value strong {
  color: var(--accent-primary);
  font-weight: 600;
}

.setup-fee-required {
  display: inline-block;
  margin-left: 6px;
  padding: 1px 6px;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--accent-primary);
  background: rgba(255, 139, 123, 0.1);
  border-radius: 4px;
}

.pricing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: start;
}

.pricing-card {
  position: relative;
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  transition: all 0.3s;
}

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

.pricing-card-featured {
  border-color: var(--accent-primary);
  background: linear-gradient(180deg, rgba(255, 139, 123, 0.05) 0%, var(--bg-card) 100%);
}

.pricing-card-featured:hover {
  border-color: var(--accent-primary);
}

.pricing-card .pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 6px 16px;
  background: var(--gradient-accent);
  color: #000;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 100px;
}

.pricing-header {
  margin-bottom: 24px;
}

.pricing-name {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.pricing-desc {
  font-size: 0.9rem;
  color: var(--text-tertiary);
}

.pricing-price {
  margin-bottom: 0;
}

.price-amount {
  font-size: 2.5rem;
  font-weight: 700;
}

.price-unit {
  font-size: 0.9rem;
  color: var(--text-tertiary);
}

/* Annual pricing */
.pricing-annual {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  padding: 12px;
  background: rgba(255, 139, 123, 0.08);
  border-radius: 8px;
  border: 1px solid rgba(255, 139, 123, 0.15);
}

.annual-badge {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--accent-primary);
  background: rgba(255, 139, 123, 0.15);
  padding: 3px 8px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.annual-price {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.annual-note {
  font-size: 0.8rem;
  color: var(--text-tertiary);
  width: 100%;
}

/* Cost estimate */
.pricing-estimate {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 16px;
  margin-bottom: 0;
  padding: 10px 12px;
  background: var(--bg-secondary);
  border-radius: 6px;
  border-left: 3px solid var(--accent-primary);
}

.pricing-estimate strong {
  color: var(--accent-primary);
  font-weight: 600;
}

.pricing-features {
  list-style: none;
  margin-top: 20px;
  margin-bottom: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--border-subtle);
}

.pricing-features li {
  padding: 8px 0;
  font-size: 0.9rem;
  color: var(--text-secondary);
  padding-left: 24px;
  position: relative;
}

.pricing-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent-primary);
}

.pricing-features li strong {
  color: var(--accent-primary);
  font-weight: 600;
}

.pricing-features-more {
  margin: -16px 0 28px;
  text-align: center;
  font-size: 0.9rem;
}

.pricing-features-more a {
  color: var(--accent-primary);
  text-decoration: none;
  font-weight: 500;
}

.pricing-features-more a:hover {
  text-decoration: underline;
}

.pricing-card .btn {
  width: 100%;
}

/* 增值包列表 */
.addon-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.addon-list-title {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: 0 0 4px 0;
}

.addon-card {
  display: flex;
  gap: 14px;
  padding: 14px 16px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  transition: border-color 0.2s;
}

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

.addon-icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 139, 123, 0.15);
  border-radius: 8px;
  color: var(--accent-primary);
}

.addon-body {
  flex: 1;
  min-width: 0;
}

.addon-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 4px;
}

.addon-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}

.addon-name small {
  font-size: 0.75em;
  color: var(--text-tertiary);
  font-weight: 400;
  margin-left: 4px;
}

.addon-fee {
  font-size: 0.8rem;
  color: var(--accent-primary);
  font-weight: 600;
}

.addon-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin: 0;
}

/* ========================================
   Culture Section
   ======================================== */
.culture-section {
  padding: 100px 0;
  background: var(--bg-secondary);
}

.culture-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}

.culture-card {
  position: relative;
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  transition: all 0.3s;
}

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

.culture-number {
  position: absolute;
  top: 24px;
  right: 24px;
  font-size: 3rem;
  font-weight: 700;
  color: var(--border-subtle);
  line-height: 1;
}

.culture-header {
  margin-bottom: 16px;
}

.culture-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.culture-subtitle {
  font-size: 0.85rem;
  color: var(--accent-primary);
  font-style: italic;
}

.culture-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}

.culture-list {
  list-style: none;
  padding-top: 16px;
  border-top: 1px solid var(--border-subtle);
}

.culture-list li {
  font-size: 0.9rem;
  color: var(--text-tertiary);
  padding: 6px 0;
  padding-left: 16px;
  position: relative;
}

.culture-list li::before {
  content: '·';
  position: absolute;
  left: 0;
  color: var(--accent-primary);
  font-weight: bold;
}

/* Culture Hero - Impact Section */
.culture-hero {
  position: relative;
  height: 60vh;
  min-height: 400px;
  max-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

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

.culture-hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
}

.culture-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.3) 0%,
    rgba(0, 0, 0, 0.6) 50%,
    rgba(0, 0, 0, 0.85) 100%
  );
}

.culture-hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 24px;
  max-width: 900px;
}

.culture-hero-text {
  font-size: 1.75rem;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.8;
  letter-spacing: 0.02em;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
}

.culture-hero-text strong {
  color: var(--accent-primary);
  font-weight: 600;
}

@media (max-width: 768px) {
  .culture-hero {
    height: 50vh;
    min-height: 320px;
  }

  .culture-hero-text {
    font-size: 1.25rem;
  }
}

.culture-footer {
  text-align: center;
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto;
  text-wrap: balance;
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
}

/* ========================================
   CTA Section
   ======================================== */
.cta-section {
  padding: 100px 0;
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 400px;
  background: radial-gradient(ellipse 50% 50% at 50% 50%, rgba(255, 139, 123, 0.15), transparent);
  pointer-events: none;
}

.cta-content {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
  position: relative;
}

.cta-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.cta-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
  text-wrap: balance;
}

.cta-actions {
  margin-bottom: 16px;
}

.cta-note {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ========================================
   Footer
   ======================================== */
.footer {
  padding: 60px 0 40px;
  background: var(--bg-primary);
  border-top: 1px solid var(--border-subtle);
}

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

.footer-tagline {
  font-size: 0.9rem;
  color: var(--text-tertiary);
  margin-top: 12px;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.footer-group h4 {
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.footer-group a {
  display: block;
  font-size: 0.9rem;
  color: var(--text-tertiary);
  text-decoration: none;
  padding: 6px 0;
  transition: color 0.2s;
}

.footer-group a:hover {
  color: var(--text-primary);
}

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

.footer-bottom p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.beian {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.beian:hover {
  color: var(--text-secondary);
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 2.5rem;
  }

  .hero-showcase {
    width: calc(100% - 40px);
    max-width: 1000px;
  }

  .hero-image {
    transform: perspective(2000px) rotateX(10deg);
  }

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

  .feature-card-large {
    grid-column: span 2;
    grid-row: span 1;
  }

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

  .security-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .security-text .section-title,
  .security-text .section-desc {
    text-align: center;
  }

  .security-list {
    display: inline-block;
    text-align: left;
  }

  .security-badges {
    flex-direction: row;
    justify-content: center;
    flex-wrap: wrap;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
  }

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

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .hero {
    min-height: auto;
    padding-top: 90px;
  }

  .hero-title {
    font-size: 1.875rem;
  }

  .hero-subtitle {
    font-size: 0.9rem;
  }

  .hero-content {
    padding-bottom: 24px;
  }

  .hero-showcase {
    width: calc(100% - 32px);
  }

  .hero-image {
    transform: perspective(1500px) rotateX(8deg);
    border-radius: 10px 10px 0 0;
  }

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

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

  .feature-card-large {
    grid-column: span 1;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero {
    padding-top: 80px;
  }

  .hero-title {
    font-size: 1.625rem;
  }

  .hero-subtitle {
    font-size: 0.85rem;
  }

  .hero-content {
    padding-bottom: 20px;
  }

  .hero-showcase {
    width: calc(100% - 24px);
  }

  .hero-image {
    transform: perspective(1200px) rotateX(6deg);
    border-radius: 8px 8px 0 0;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .btn-large {
    padding: 12px 24px;
    font-size: 0.95rem;
  }

  .pricing-card {
    padding: 24px;
  }

  .setup-fee-block {
    padding: 20px 16px;
  }

  .setup-fee-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .footer-links {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

/* ========================================
   Animations
   ======================================== */
@media (prefers-reduced-motion: no-preference) {
  .feature-card,
  .ai-card,
  .pricing-card,
  .culture-card {
    transition:
      transform 0.3s ease,
      border-color 0.3s ease;
  }

  .btn {
    transition: all 0.2s ease;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ========================================
   QR Code Modal
   ======================================== */
.qr-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition:
    opacity 0.3s ease,
    visibility 0.3s ease;
}

.qr-modal.active {
  opacity: 1;
  visibility: visible;
}

.qr-modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 16px;
  padding: 32px;
  max-width: 360px;
  width: 90%;
  text-align: center;
  position: relative;
  transform: scale(0.9);
  transition: transform 0.3s ease;
}

.qr-modal.active .qr-modal-content {
  transform: scale(1);
}

.qr-modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  color: var(--text-tertiary);
  font-size: 24px;
  cursor: pointer;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition:
    color 0.2s ease,
    background 0.2s ease;
}

.qr-modal-close:hover {
  color: var(--text-primary);
  background: var(--bg-card-hover);
}

.qr-modal-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.qr-modal-desc {
  font-size: 0.9rem;
  color: var(--text-tertiary);
  margin-bottom: 24px;
}

.qr-modal-image {
  width: 200px;
  height: 200px;
  border-radius: 12px;
  background: white;
  padding: 8px;
  margin-bottom: 16px;
}

.qr-modal-note {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ========================================
   Price Calculator Modal
   ======================================== */
.pricing-calc-cta {
  text-align: center;
  margin-top: 32px;
}

.calc-modal .calc-modal-content {
  max-width: 420px;
  text-align: left;
}

.calc-form {
  margin-bottom: 0;
}

.calc-field {
  margin-bottom: 20px;
}

.calc-field label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.calc-field input[type='number'],
.calc-field select {
  width: 100%;
  padding: 10px 14px;
  font-size: 0.95rem;
  color: var(--text-primary);
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  appearance: none;
}

.calc-field input:focus,
.calc-field select:focus {
  outline: none;
  border-color: var(--accent-primary);
}

.btn-block {
  width: 100%;
  margin-top: 8px;
}

.calc-result {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
}

.calc-result-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 8px 0;
  font-size: 0.95rem;
}

.calc-result-label {
  color: var(--text-secondary);
}

.calc-result-value {
  font-weight: 600;
  color: var(--text-primary);
}

.calc-result-note {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 16px;
  line-height: 1.5;
}

.calc-result-block {
  margin-bottom: 12px;
}

.calc-result-block:last-of-type {
  margin-bottom: 0;
}

.calc-result-detail {
  font-size: 0.78rem;
  color: var(--text-tertiary);
  margin: 4px 0 0;
  line-height: 1.4;
}

.calc-section {
  margin-bottom: 20px;
  padding-top: 16px;
  border-top: 1px dashed var(--border-subtle);
}

.calc-section-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.calc-addon {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  font-size: 0.88rem;
}

.calc-addon-name {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-primary);
  cursor: pointer;
  margin: 0;
}

.calc-addon-name input {
  accent-color: var(--accent-primary);
}

.calc-addon-name-static {
  color: var(--text-secondary);
  cursor: default;
}

.calc-addon-input {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-tertiary);
  font-size: 0.85rem;
}

.calc-addon-input input[type='number'] {
  width: 60px;
  padding: 4px 8px;
  font-size: 0.85rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 6px;
  color: var(--text-primary);
}

.calc-addon-input input[type='number']:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}