:root {
  /* Light mode colors */
  --bg: #ffffff;
  --text: #111827;
  --muted: #6b7280;
  --light: #f9fafb;
  --blue: #2563eb;
  --blue-50: #eff6ff;
  --blue-600: #2563eb;
  --blue-100: #dbeafe;
  --blue-200: #bfdbfe;
  --green-50: #ecfdf5;
  --border: #e5e7eb;
  --gradient-primary: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  --gradient-secondary: linear-gradient(135deg, #3b82f6 0%, #1e40af 100%);
  --gradient-hero: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

[data-theme="dark"] {
  /* Dark mode colors */
  --bg: #0f172a;
  --text: #f1f5f9;
  --muted: #94a3b8;
  --light: #1e293b;
  --blue: #3b82f6;
  --blue-50: #1e293b;
  --blue-600: #3b82f6;
  --blue-100: #334155;
  --blue-200: #475569;
  --green-50: #0f2419;
  --border: #334155;
  --gradient-primary: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
  --gradient-secondary: linear-gradient(135deg, #60a5fa 0%, #3b82f6 100%);
  --gradient-hero: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.5);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.6), 0 2px 4px -2px rgb(0 0 0 / 0.4);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.6), 0 4px 6px -4px rgb(0 0 0 / 0.4);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.7), 0 8px 10px -6px rgb(0 0 0 / 0.5);
}

* {
  box-sizing: border-box;
}

/* Ensure smooth transitions for theme switching on key elements */
body,
.nav,
.card,
.feature,
.how-item,
.card-cta,
.footer,
.lang select,
.theme-toggle {
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  text-decoration: none;
  transition: all 0.2s ease;
}
.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 16px;
}

.nav {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.8);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
  box-shadow: var(--shadow-sm);
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

[data-theme="dark"] .nav {
  background: rgba(15, 23, 42, 0.8);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  height: 72px;
  column-gap: 28px;
}

.brand-logo {
  height: 48px;
  width: auto;
  transition: transform 0.2s ease;
}

.brand-logo:hover {
  transform: scale(1.05);
}

.links a {
  color: var(--text);
  margin-right: 8px;
  padding: 10px 16px;
  border-radius: 12px;
  font-weight: 500;
  font-size: 15px;
  transition: all 0.2s ease;
  position: relative;
}

.links a:hover {
  background: var(--blue-50);
  color: var(--blue-600);
  transform: translateY(-1px);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 24px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 15px;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  transition: left 0.5s;
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-ghost {
  background: var(--blue-50);
  color: #1e3a8a;
  border: 1px solid var(--blue-100);
}

.btn-ghost:hover {
  background: var(--blue-100);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.lang select {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  background: var(--bg);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-sm);
}

.lang select:hover {
  border-color: var(--blue-600);
  box-shadow: var(--shadow-md);
}

.lang select:focus {
  outline: none;
  border-color: var(--blue-600);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Dark mode toggle */
.theme-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}

.theme-toggle {
  background: var(--light);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 36px;
  box-shadow: var(--shadow-sm);
}

.theme-toggle:hover {
  background: var(--blue-50);
  border-color: var(--blue-200);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
  color: var(--text);
  transition: color 0.2s ease;
}

.theme-toggle:hover svg {
  color: var(--blue-600);
}
.hero {
  padding: 60px 0;
  background: var(--gradient-hero);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E") repeat;
  animation: float 20s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(180deg); }
}

.hero .container {
  position: relative;
  z-index: 2;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
}

@media(min-width:960px) {
  .grid-2 {
    grid-template-columns: 1.2fr 1fr;
    gap: 48px;
  }
}

.grid-4 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media(min-width:960px) {
  .grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media(min-width:960px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.gap {
  gap: 20px;
}

.hero-title {
  font-size: 48px;
  line-height: 1.1;
  margin: 0;
  font-weight: 800;
  color: var(--text);
  animation: slideInUp 0.8s ease-out;
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media(min-width:640px) {
  .hero-title {
    font-size: 64px;
  }
}

.accent {
  color: var(--blue-600);
  font-weight: 900;
}

.hero-sub {
  margin-top: 16px;
  color: var(--muted);
  font-size: 20px;
  line-height: 1.6;
  animation: slideInUp 0.8s ease-out 0.2s both;
}

.hero-cta {
  margin-top: 32px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  animation: slideInUp 0.8s ease-out 0.4s both;
}

.note {
  margin-top: 12px;
  color: var(--muted);
  font-size: 14px;
  animation: slideInUp 0.8s ease-out 0.6s both;
}
.card {
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  background: var(--bg);
  box-shadow: var(--shadow-xl);
  transition: all 0.3s ease;
  animation: slideInUp 0.8s ease-out 0.6s both;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.card-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  border-bottom: 1px solid var(--border);
  color: var(--muted);
  font-size: 14px;
  background: var(--light);
}

.dot {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dot-red {
  background: #f87171;
}

.dot-yellow {
  background: #fbbf24;
}

.dot-green {
  background: #34d399;
}

.card-body {
  padding: 24px;
}

.card-title {
  margin: 0 0 8px 0;
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
}

.muted {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.6;
}

.panel {
  padding: 18px;
  border-radius: 16px;
  transition: all 0.2s ease;
}

.panel:hover {
  transform: translateY(-2px);
}

.panel-blue {
  background: var(--blue-50);
  border: 1px solid var(--blue-100);
}

.panel-green {
  background: var(--green-50);
  border: 1px solid #bbf7d0;
}

.panel-tag {
  font-size: 12px;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.section {
  padding: 80px 0;
}

.bg-light {
  background: linear-gradient(135deg, var(--light) 0%, #f3f4f6 100%);
}

.bg-accent {
  background: linear-gradient(135deg, var(--blue-50) 0%, var(--blue-100) 100%);
}
.section-title {
  font-size: 36px;
  margin: 0 0 12px 0;
  font-weight: 800;
  text-align: center;
  background: linear-gradient(135deg, var(--text), var(--blue-600));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-sub {
  color: var(--muted);
  font-size: 18px;
  text-align: center;
  max-width: 600px;
  margin: 0 auto 48px auto;
  line-height: 1.6;
}

.feature {
  padding: 32px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--bg);
  transition: all 0.3s ease;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.feature::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.feature:hover::before {
  transform: scaleX(1);
}

.feature:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--blue-200);
}

.feature-head {
  color: var(--blue-600);
  font-weight: 700;
  font-size: 18px;
  margin-bottom: 12px;
}
.how-item {
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--bg);
  display: flex;
  gap: 16px;
  align-items: flex-start;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-md);
}

.how-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--blue-200);
}

.how-item .num {
  font-weight: 800;
  color: white;
  background: var(--gradient-primary);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  box-shadow: var(--shadow-md);
}

.how-text {
  color: var(--text);
  font-size: 16px;
  line-height: 1.6;
  flex: 1;
}

.flex-between {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

@media (max-width: 640px) {
  .flex-between {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }
}

.card-cta {
  border: 1px solid var(--blue-200);
  border-radius: 24px;
  background: var(--bg);
  padding: 32px;
  box-shadow: var(--shadow-xl);
  position: relative;
  overflow: hidden;
}

.card-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.05), rgba(59, 130, 246, 0.05));
  z-index: 1;
}

.card-cta > * {
  position: relative;
  z-index: 2;
}

.cta-title {
  font-size: 28px;
  margin: 0;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.plans .plan{background:#fff;border:1px solid var(--border);border-radius:16px;padding:20px;position:relative}
.plans .plan.popular{box-shadow:0 6px 16px rgba(37,99,235,.15);border-color:#bfdbfe}
.plans .plan .badge{position:absolute;top:12px;right:12px;background:#1d4ed8;color:#fff;padding:4px 8px;border-radius:9999px;font-size:12px}
.plan-head{font-weight:700;font-size:16px;margin-bottom:8px}
.price{font-size:28px;font-weight:800;margin:6px 0}
.price .currency{font-weight:700}
.price .cycle{color:var(--muted);font-size:14px;margin-left:6px}
.features-list{list-style:none;padding:0;margin:12px 0}
.features-list li{font-size:14px;color:var(--text);margin:6px 0}
.btn-block{display:block;width:100%;text-align:center;margin-top:8px}
.center{text-align:center}
.faq .qa {
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
  transition: all 0.2s ease;
}

.faq .qa:hover {
  background: rgba(37, 99, 235, 0.02);
  margin: 0 -16px;
  padding: 20px 16px;
  border-radius: 12px;
}

.faq .q {
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0;
  font-size: 16px;
  color: var(--text);
  transition: color 0.2s ease;
}

.faq .q:hover {
  color: var(--blue-600);
}

.faq .q::after {
  content: '+';
  color: var(--muted);
  font-weight: 700;
  font-size: 20px;
  transition: all 0.3s ease;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--blue-50);
  border-radius: 50%;
}

.faq .qa.open .q::after {
  content: '−';
  color: white;
  background: var(--blue-600);
  transform: rotate(180deg);
}

.faq .a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  padding: 0 0 0 0;
}

.faq .qa.open .a {
  max-height: 500px;
  padding: 12px 0 0 0;
}

.footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  background: var(--light);
  margin-top: 0;
}

.copy, .small {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

/* Add some modern responsive improvements */
@media (max-width: 768px) {
  .hero-title {
    font-size: 36px;
  }
  
  .section-title {
    font-size: 28px;
  }
  
  .hero {
    padding: 40px 0 60px 0;
  }
  
  .section {
    padding: 60px 0;
  }
  
  .nav-inner {
    height: 64px;
  }
  
  .links {
    display: none;
  }
  
  .theme-controls {
    gap: 8px;
  }
  
  .theme-toggle {
    width: 36px;
    height: 32px;
  }
  
  .theme-toggle svg {
    width: 16px;
    height: 16px;
  }
}

/* Add scroll animations */
@media (prefers-reduced-motion: no-preference) {
  .feature, .how-item {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s ease forwards;
  }
  
  .feature:nth-child(1) { animation-delay: 0.1s; }
  .feature:nth-child(2) { animation-delay: 0.2s; }
  .feature:nth-child(3) { animation-delay: 0.3s; }
  .feature:nth-child(4) { animation-delay: 0.4s; }
  
  .how-item:nth-child(1) { animation-delay: 0.1s; }
  .how-item:nth-child(2) { animation-delay: 0.3s; }
  .how-item:nth-child(3) { animation-delay: 0.5s; }
  .how-item:nth-child(4) { animation-delay: 0.7s; }
}

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

/* Step items styles */
.step-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px;
  text-align: center;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-md);
  position: relative;
}

.step-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--blue-200);
}

/* Featured step (插入一行代码) */
.step-item.featured {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.05), rgba(59, 130, 246, 0.05));
  border: 2px solid var(--blue-600);
  box-shadow: 0 0 0 1px var(--blue-600), var(--shadow-xl);
}

.step-item.featured:hover {
  transform: translateY(-6px);
  box-shadow: 0 0 0 1px var(--blue-600), var(--shadow-xl);
}

.step-number {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-primary);
  color: white;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 16px;
  box-shadow: var(--shadow-md);
}

.step-title {
  font-size: 22px;
  font-weight: 800;
  color: var(--text);
  margin: 16px 0 16px 0;
}


.step-desc {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.6;
  margin: 0 0 16px 0;
}

/* Code preview */
.code-preview {
  background: linear-gradient(135deg, #ecfdf5, #d1fae5);
  border: 2px solid #10b981;
  border-radius: 12px;
  padding: 16px 20px;
  margin-top: 16px;
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  position: relative;
  box-shadow: 0 4px 6px -1px rgba(16, 185, 129, 0.1);
}

.code-badge {
  position: absolute;
  top: -8px;
  left: 16px;
  background: #10b981;
  color: #fff;
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 700;
  font-family: 'Inter', sans-serif;
}

.code-preview code {
  font-size: 15px;
  color: #047857;
  font-weight: 700;
  word-break: break-all;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.5);
}

[data-theme="dark"] .code-preview {
  background: linear-gradient(135deg, #064e3b, #065f46);
  border-color: #10b981;
}

[data-theme="dark"] .code-preview code {
  color: #34d399;
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.3);
}

/* Highlight items styles */
.highlight-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}

.highlight-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--blue-200);
}

.highlight-icon {
  font-size: 32px;
  margin-bottom: 12px;
  display: block;
}

.highlight-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 8px 0;
}

.highlight-desc {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
  margin: 0;
}

/* How page layout: enlarge step 1 & 2 */
.how-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media(min-width:960px){
  .how-steps { grid-template-columns: 1.3fr 1.7fr; gap: 32px; }
  .how-step-3 { grid-column: 1 / -1; }
  .how-steps .step-item { padding: 40px; }
}

/* Maximize screenshot area inside step 2 */
.how-screenshot .card-body { padding: 0; }
.how-screenshot img { display:block; width:100%; height:auto; border-bottom-left-radius:12px; border-bottom-right-radius:12px; }

/* Comparison table styles */
.table-scroll { overflow-x: auto; }

.compare-table {
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
  border-collapse: separate;
  border-spacing: 0;
}

.compare-table th,
.compare-table td {
  padding: 16px 20px;
  font-size: 15px;
  line-height: 1.6;
  border: none; /* 不要有框 */
  text-align: left;
}

.compare-table thead th {
  font-weight: 700;
  background: var(--light);
}

.compare-table tbody th {
  font-weight: 600;
  color: var(--text);
  background: transparent; /* 不要左侧底色块 */
}

.compare-table td.viaiseo {
  background: rgba(34, 197, 94, 0.05);
}

.compare-table td.traditional {
  background: rgba(239, 68, 68, 0.05);
  color: var(--muted);
}

@media (max-width: 768px) {
  .compare-table th,
  .compare-table td {
    padding: 12px 14px;
    font-size: 14px;
  }
}

/* Pricing styles */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
  margin-bottom: 48px;
}

.pricing-card {
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: 20px;
  padding: 32px;
  text-align: center;
  transition: all 0.3s ease;
  position: relative;
  box-shadow: var(--shadow-md);
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--blue-200);
}

.pricing-card.popular {
  border-color: var(--blue-600);
  box-shadow: 0 0 0 1px var(--blue-600), var(--shadow-xl);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-primary);
  color: white;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.pricing-header {
  margin-bottom: 32px;
}

.pricing-title {
  font-size: 24px;
  font-weight: 800;
  color: var(--text);
  margin: 0 0 16px 0;
}

.pricing-price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 4px;
  margin-bottom: 16px;
}

.pricing-price .currency {
  font-size: 20px;
  font-weight: 600;
  color: var(--muted);
}

.pricing-price .amount {
  font-size: 48px;
  font-weight: 900;
  color: var(--text);
  line-height: 1;
}

.pricing-price .period {
  font-size: 18px;
  font-weight: 500;
  color: var(--muted);
}

.pricing-desc {
  color: var(--muted);
  font-size: 15px;
  margin: 0;
}

.pricing-features {
  list-style: none;
  padding: 0;
  margin: 0 0 32px 0;
  text-align: left;
}

.pricing-features li {
  padding: 12px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  font-size: 15px;
  color: var(--text);
  line-height: 1.4;
}

.pricing-features li:last-child {
  border-bottom: none;
}

[data-theme="dark"] .pricing-features li {
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-block {
  display: block;
  width: 100%;
  text-align: center;
}

/* Refund policy */
.refund-policy {
  margin-top: 48px;
}

.refund-card {
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.1), rgba(16, 185, 129, 0.1));
  border: 1px solid rgba(34, 197, 94, 0.2);
  border-radius: 16px;
  padding: 24px;
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.refund-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 12px 0;
}

.refund-text {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.6;
  margin: 0;
}

/* Features page styles */
.features-hero {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.features-hero-title {
  font-size: 48px;
  font-weight: 900;
  color: var(--text);
  margin: 0 0 24px 0;
  line-height: 1.2;
}

.features-hero-sub {
  font-size: 20px;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 48px;
}

.features-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 32px;
  margin-top: 48px;
}

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

.stat-number {
  font-size: 32px;
  font-weight: 900;
  color: var(--blue-600);
  margin-bottom: 8px;
}

.stat-label {
  font-size: 16px;
  color: var(--muted);
  font-weight: 500;
}

/* Feature cards */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 32px;
}

.feature-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-md);
  position: relative;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--blue-200);
}

.feature-card.premium {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.03), rgba(59, 130, 246, 0.03));
  border: 2px solid var(--blue-600);
  box-shadow: 0 0 0 1px var(--blue-600), var(--shadow-xl);
}

.feature-badge {
  position: absolute;
  top: -12px;
  right: 24px;
  background: var(--gradient-primary);
  color: white;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.feature-card .feature-icon {
  font-size: 48px;
  margin-bottom: 20px;
  display: block;
}

.feature-card .feature-icon:empty {
  display: none;
}

.feature-card .feature-title {
  font-size: 24px;
  font-weight: 800;
  color: var(--text);
  margin: 0 0 16px 0;
  line-height: 1.3;
}

.feature-card .feature-desc {
  font-size: 16px;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 24px;
}

.feature-details {
  list-style: none;
  padding: 0;
  margin: 0;
}

.feature-details li {
  padding: 8px 0;
  font-size: 15px;
  color: var(--text);
  line-height: 1.5;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.feature-details li:last-child {
  border-bottom: none;
}

[data-theme="dark"] .feature-details li {
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* Integration cards */
.integration-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
}

.integration-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}

.integration-card h4 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 20px 0;
}

.tech-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tech-tag {
  background: var(--blue-50);
  color: var(--blue-600);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid var(--blue-100);
  transition: all 0.2s ease;
}

.tech-tag:hover {
  background: var(--blue-100);
  transform: translateY(-1px);
}

/* CTA Section */
.cta-section {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.cta-title {
  font-size: 36px;
  font-weight: 800;
  color: var(--text);
  margin: 0 0 16px 0;
}

.cta-desc {
  font-size: 18px;
  color: var(--muted);
  margin-bottom: 32px;
  line-height: 1.6;
}

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

.btn-large {
  padding: 16px 32px;
  font-size: 16px;
  font-weight: 700;
}

/* Mobile responsiveness */
@media (max-width: 768px) {
  .features-hero-title {
    font-size: 36px;
  }
  
  .features-hero-sub {
    font-size: 18px;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .integration-grid {
    grid-template-columns: 1fr;
  }
  
  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .btn-large {
    padding: 14px 24px;
    width: 100%;
    max-width: 280px;
  }
}