:root {
  --color-primary: #0A1628;
  --color-primary-light: #0F2035;
  --color-primary-lighter: #162D4A;
  --color-cyan: #00D4AA;
  --color-cyan-dark: #00B892;
  --color-cyan-light: #33DDBB;
  --color-orange: #FF6B35;
  --color-orange-dark: #E55A28;
  --color-orange-light: #FF8A5C;
  --color-white: #FFFFFF;
  --color-gray-50: #F8FAFC;
  --color-gray-100: #F1F5F9;
  --color-gray-200: #E2E8F0;
  --color-gray-300: #CBD5E1;
  --color-gray-400: #94A3B8;
  --color-gray-500: #64748B;
  --color-gray-600: #475569;
  --color-gray-700: #334155;
  --color-gray-800: #1E293B;
  --color-gray-900: #0F172A;
  --color-ai: #7C3AED;
  --color-ai-light: #A78BFA;
  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-danger: #EF4444;
  --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.75rem;
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;
  --container-max: 1200px;
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;
  --border-radius-xl: 16px;
  --border-radius-full: 9999px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
  --shadow-glow-cyan: 0 0 20px rgba(0,212,170,0.3);
  --shadow-glow-orange: 0 0 20px rgba(255,107,53,0.3);
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-tooltip: 600;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-gray-800);
  background-color: var(--color-white);
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  font-size: inherit;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
}

.section {
  padding: var(--spacing-4xl) 0;
}

.section-dark {
  background: var(--color-primary);
  color: var(--color-white);
}

.section-gray {
  background: var(--color-gray-50);
}

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

.section-header h2 {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  line-height: 1.3;
}

.section-header p {
  font-size: var(--font-size-lg);
  color: var(--color-gray-500);
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.8;
}

.section-dark .section-header p {
  color: var(--color-gray-400);
}

.section-header .accent-line {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-cyan), var(--color-orange));
  margin: var(--spacing-lg) auto 0;
  border-radius: 2px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 12px 28px;
  font-size: var(--font-size-base);
  font-weight: 600;
  border-radius: var(--border-radius-md);
  transition: all var(--transition-base);
  white-space: nowrap;
  line-height: 1.5;
}

.btn-primary {
  background: var(--color-orange);
  color: var(--color-white);
  box-shadow: var(--shadow-glow-orange);
}

.btn-primary:hover {
  background: var(--color-orange-dark);
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(255,107,53,0.4);
}

.btn-secondary {
  background: transparent;
  color: var(--color-cyan);
  border: 2px solid var(--color-cyan);
}

.btn-secondary:hover {
  background: var(--color-cyan);
  color: var(--color-primary);
  transform: translateY(-2px);
}

.btn-white {
  background: var(--color-white);
  color: var(--color-primary);
}

.btn-white:hover {
  background: var(--color-gray-100);
  transform: translateY(-2px);
}

.btn-ghost {
  background: rgba(255,255,255,0.1);
  color: var(--color-white);
  border: 1px solid rgba(255,255,255,0.2);
}

.btn-ghost:hover {
  background: rgba(255,255,255,0.2);
  border-color: rgba(255,255,255,0.4);
}

.btn-lg {
  padding: 16px 36px;
  font-size: var(--font-size-lg);
  border-radius: var(--border-radius-lg);
}

.btn-sm {
  padding: 8px 18px;
  font-size: var(--font-size-sm);
}

.btn .arrow {
  transition: transform var(--transition-fast);
}

.btn:hover .arrow {
  transform: translateX(4px);
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  padding: 0 var(--spacing-xl);
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.navbar.scrolled {
  background: var(--color-primary);
  box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.navbar-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.navbar-logo svg {
  width: 36px;
  height: 36px;
}

.navbar-logo-text {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 1px;
}

.navbar-logo-text span {
  color: var(--color-cyan);
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.navbar-nav a {
  color: rgba(255,255,255,0.85);
  font-size: var(--font-size-sm);
  font-weight: 500;
  padding: 8px 4px;
  position: relative;
  transition: color var(--transition-fast);
}

.navbar-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-cyan);
  transition: width var(--transition-base);
}

.navbar-nav a:hover,
.navbar-nav a.active {
  color: var(--color-cyan);
}

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

.navbar-cta {
  margin-left: var(--spacing-lg);
}

.navbar-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.navbar-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  transition: all var(--transition-base);
  border-radius: 1px;
}

.navbar-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.navbar-toggle.active span:nth-child(2) {
  opacity: 0;
}

.navbar-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 80px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-primary);
  z-index: var(--z-fixed);
  padding: var(--spacing-xl);
  overflow-y: auto;
}

.mobile-menu.active {
  display: block;
}

.mobile-menu a {
  display: block;
  color: rgba(255,255,255,0.85);
  font-size: var(--font-size-lg);
  padding: var(--spacing-md) 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  transition: color var(--transition-fast);
}

.mobile-menu a:hover,
.mobile-menu a.active {
  color: var(--color-cyan);
}

.mobile-menu .btn {
  margin-top: var(--spacing-xl);
  width: 100%;
}

.page-banner {
  position: relative;
  padding: 160px 0 80px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 50%, var(--color-primary-lighter) 100%);
  color: var(--color-white);
  overflow: hidden;
}

.page-banner::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='%2300D4AA' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.5;
}

.page-banner .container {
  position: relative;
  z-index: 1;
}

.page-banner h1 {
  font-size: var(--font-size-5xl);
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
  line-height: 1.2;
}

.page-banner h1 .highlight {
  background: linear-gradient(135deg, var(--color-cyan), var(--color-cyan-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-banner p {
  font-size: var(--font-size-lg);
  color: rgba(255,255,255,0.75);
  max-width: 700px;
  line-height: 1.8;
}

.page-banner .banner-decoration {
  position: absolute;
  right: -50px;
  top: 50%;
  transform: translateY(-50%);
  width: 400px;
  height: 400px;
  opacity: 0.08;
}

.card {
  background: var(--color-white);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-2xl);
  transition: all var(--transition-base);
  border: 1px solid var(--color-gray-200);
}

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

.card-dark {
  background: var(--color-primary-light);
  border-color: rgba(255,255,255,0.1);
  color: var(--color-white);
}

.card-dark:hover {
  border-color: var(--color-cyan);
  box-shadow: var(--shadow-glow-cyan);
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--border-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-lg);
  background: linear-gradient(135deg, rgba(0,212,170,0.1), rgba(0,212,170,0.05));
  color: var(--color-cyan);
}

.card-dark .card-icon {
  background: linear-gradient(135deg, rgba(0,212,170,0.2), rgba(0,212,170,0.1));
}

.card h3 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.card p {
  color: var(--color-gray-500);
  line-height: 1.7;
}

.card-dark p {
  color: var(--color-gray-400);
}

.card .tag {
  display: inline-block;
  padding: 4px 12px;
  font-size: var(--font-size-xs);
  font-weight: 600;
  border-radius: var(--border-radius-full);
  margin-bottom: var(--spacing-md);
}

.tag-cyan {
  background: rgba(0,212,170,0.1);
  color: var(--color-cyan);
}

.tag-orange {
  background: rgba(255,107,53,0.1);
  color: var(--color-orange);
}

.tag-ai {
  background: rgba(124,58,237,0.1);
  color: var(--color-ai);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-2xl);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-2xl);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-2xl);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-xl);
}

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

.stat-number {
  font-size: var(--font-size-5xl);
  font-weight: 700;
  color: var(--color-cyan);
  line-height: 1;
  margin-bottom: var(--spacing-sm);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
}

.section-dark .stat-label {
  color: var(--color-gray-400);
}

.footer {
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-4xl) 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-3xl);
  padding-bottom: var(--spacing-3xl);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand p {
  color: var(--color-gray-400);
  margin-top: var(--spacing-md);
  line-height: 1.7;
  font-size: var(--font-size-sm);
}

.footer h4 {
  font-size: var(--font-size-base);
  font-weight: 600;
  margin-bottom: var(--spacing-lg);
  color: var(--color-white);
}

.footer-links a {
  display: block;
  color: var(--color-gray-400);
  font-size: var(--font-size-sm);
  padding: 6px 0;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-cyan);
}

.footer-contact p {
  color: var(--color-gray-400);
  font-size: var(--font-size-sm);
  padding: 4px 0;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.footer-contact svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  color: var(--color-cyan);
}

.footer-bottom {
  padding: var(--spacing-xl) 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--font-size-xs);
  color: var(--color-gray-500);
}

.footer-bottom a {
  color: var(--color-gray-500);
  transition: color var(--transition-fast);
}

.footer-bottom a:hover {
  color: var(--color-cyan);
}

.floating-bar {
  position: fixed;
  right: 24px;
  z-index: var(--z-sticky);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.floating-bar .float-btn {
  width: 48px;
  height: 48px;
  border-radius: var(--border-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xs);
  font-weight: 600;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-lg);
  cursor: pointer;
}

.float-top {
  bottom: 80px;
  background: var(--color-primary);
  color: var(--color-white);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.float-top.visible {
  opacity: 1;
  visibility: visible;
}

.float-top:hover {
  background: var(--color-primary-lighter);
  transform: translateY(-2px);
}

.float-presale {
  bottom: 150px;
  background: var(--color-orange);
  color: var(--color-white);
}

.float-presale:hover {
  background: var(--color-orange-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-orange);
}

.float-aftersale {
  bottom: 220px;
  background: var(--color-white);
  color: var(--color-primary);
  border: 1px solid var(--color-gray-300);
}

.float-aftersale:hover {
  border-color: var(--color-cyan);
  color: var(--color-cyan);
  transform: translateY(-2px);
}

.float-contact {
  bottom: 290px;
  background: var(--color-white);
  color: var(--color-primary);
  border: 1px solid var(--color-gray-300);
}

.float-contact:hover {
  border-color: var(--color-cyan);
  color: var(--color-cyan);
  transform: translateY(-2px);
}

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.6);
  z-index: var(--z-modal-backdrop);
  display: none;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
}

.modal-overlay.active {
  display: flex;
}

.modal {
  background: var(--color-white);
  border-radius: var(--border-radius-xl);
  padding: var(--spacing-2xl);
  max-width: 480px;
  width: 90%;
  position: relative;
  animation: modalIn 0.3s ease;
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--border-radius-full);
  color: var(--color-gray-500);
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background: var(--color-gray-100);
  color: var(--color-gray-800);
}

.modal h3 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--spacing-lg);
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-group label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
  color: var(--color-gray-700);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--color-gray-300);
  border-radius: var(--border-radius-md);
  font-size: var(--font-size-base);
  color: var(--color-gray-800);
  background: var(--color-white);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-cyan);
  box-shadow: 0 0 0 3px rgba(0,212,170,0.15);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.filter-tabs {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-2xl);
}

.filter-tab {
  padding: 8px 20px;
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-gray-600);
  background: var(--color-gray-100);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.filter-tab:hover,
.filter-tab.active {
  background: var(--color-cyan);
  color: var(--color-primary);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--color-gray-400);
  margin-bottom: var(--spacing-xl);
}

.breadcrumb a {
  color: var(--color-gray-400);
  transition: color var(--transition-fast);
}

.breadcrumb a:hover {
  color: var(--color-cyan);
}

.breadcrumb .separator {
  color: var(--color-gray-500);
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

.feature-item {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-md);
  background: var(--color-gray-50);
  transition: all var(--transition-base);
}

.feature-item:hover {
  background: rgba(0,212,170,0.05);
}

.feature-item .feature-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius-sm);
  background: linear-gradient(135deg, var(--color-cyan), var(--color-cyan-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-white);
}

.feature-item h4 {
  font-size: var(--font-size-base);
  font-weight: 600;
  margin-bottom: 4px;
}

.feature-item p {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  line-height: 1.6;
}

.ai-highlight {
  background: linear-gradient(135deg, rgba(124,58,237,0.08), rgba(0,212,170,0.05));
  border: 1px solid rgba(124,58,237,0.2);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-2xl);
  margin: var(--spacing-2xl) 0;
}

.ai-highlight .ai-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 6px 16px;
  background: linear-gradient(135deg, var(--color-ai), var(--color-ai-light));
  color: var(--color-white);
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.ai-highlight h3 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.ai-highlight p {
  color: var(--color-gray-600);
  line-height: 1.8;
}

.value-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
  margin: var(--spacing-2xl) 0;
}

.value-metric {
  text-align: center;
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  background: var(--color-gray-50);
}

.value-metric .metric-value {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--color-cyan);
  line-height: 1;
  margin-bottom: var(--spacing-sm);
}

.value-metric .metric-label {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
}

.cta-bar {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-lighter));
  padding: var(--spacing-3xl) 0;
  text-align: center;
  color: var(--color-white);
}

.cta-bar h2 {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
}

.cta-bar p {
  color: var(--color-gray-400);
  margin-bottom: var(--spacing-xl);
  font-size: var(--font-size-lg);
}

.timeline {
  position: relative;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-cyan), var(--color-orange));
}

.timeline-item {
  position: relative;
  padding-bottom: var(--spacing-2xl);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -33px;
  top: 4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-cyan);
  border: 3px solid var(--color-white);
  box-shadow: 0 0 0 3px var(--color-cyan);
}

.timeline-item .year {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-cyan);
  margin-bottom: var(--spacing-sm);
}

.timeline-item h3 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.timeline-item p {
  color: var(--color-gray-500);
  line-height: 1.7;
}

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.fade-in-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .stat-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .value-metrics {
    grid-template-columns: repeat(2, 1fr);
  }
  .feature-list {
    grid-template-columns: 1fr;
  }
  .page-banner h1 {
    font-size: var(--font-size-4xl);
  }
}

@media (max-width: 768px) {
  .navbar-nav {
    display: none;
  }
  .navbar-cta {
    display: none;
  }
  .navbar-toggle {
    display: flex;
  }
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
  .stat-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .value-metrics {
    grid-template-columns: 1fr;
  }
  .section {
    padding: var(--spacing-3xl) 0;
  }
  .section-header h2 {
    font-size: var(--font-size-3xl);
  }
  .page-banner {
    padding: 130px 0 60px;
  }
  .page-banner h1 {
    font-size: var(--font-size-3xl);
  }
  .page-banner .banner-decoration {
    display: none;
  }
  .footer-bottom {
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: center;
  }
  .floating-bar {
    right: 16px;
  }
  .floating-bar .float-btn {
    width: 42px;
    height: 42px;
    font-size: 10px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-md);
  }
  .stat-grid {
    grid-template-columns: 1fr;
  }
  .page-banner h1 {
    font-size: var(--font-size-2xl);
  }
  .section-header h2 {
    font-size: var(--font-size-2xl);
  }
  .btn-lg {
    padding: 14px 28px;
    font-size: var(--font-size-base);
  }
}

.demo-notice {
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--border-radius-md);
  padding: 16px 20px;
  margin: var(--spacing-xl) 0;
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  line-height: 1.7;
}

.demo-notice strong {
  color: var(--color-gray-800);
}

.demo-notice-header {
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--color-gray-200);
}

.demo-notice-body {
  padding: 0;
}

.demo-entry-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-lg);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-lighter));
  border-radius: var(--border-radius-md);
  color: var(--color-white);
  text-decoration: none;
  transition: all var(--transition-base);
  margin-bottom: var(--spacing-md);
}

.demo-entry-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(10,22,40,0.3);
}

.demo-entry-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(0,212,170,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
}

.demo-entry-text {
  flex: 1;
  font-size: var(--font-size-base);
  font-weight: 500;
}

.demo-entry-text strong {
  color: var(--color-cyan);
  font-size: var(--font-size-lg);
}

.demo-entry-arrow {
  font-size: var(--font-size-lg);
  transition: transform var(--transition-fast);
}

.demo-entry-link:hover .demo-entry-arrow {
  transform: translateX(4px);
}

.demo-notice-desc {
  font-size: var(--font-size-xs);
  color: var(--color-gray-500);
  line-height: 1.6;
  margin: 0;
}

.agent-table-wrapper {
  margin: var(--spacing-2xl) 0;
  overflow-x: auto;
  background: var(--color-white);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--color-gray-200);
  box-shadow: var(--shadow-md);
}

.agent-table-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-lg) var(--spacing-2xl);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-lighter));
  border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
  color: var(--color-white);
}

.agent-table-header-left {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.agent-table-header-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius-md);
  background: rgba(0,212,170,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
}

.agent-table-header h2 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin: 0;
  color: var(--color-white);
}

.agent-table-header h2 .agent-highlight {
  color: var(--color-cyan);
}

.agent-table-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 4px 14px;
  background: rgba(124,58,237,0.2);
  border: 1px solid rgba(124,58,237,0.4);
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-ai-light);
}

.agent-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}

.agent-table thead {
  background: var(--color-gray-50);
  border-bottom: 2px solid var(--color-gray-200);
}

.agent-table th {
  padding: 14px 20px;
  text-align: left;
  font-weight: 600;
  white-space: nowrap;
  color: var(--color-gray-700);
  font-size: var(--font-size-sm);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.agent-table th:first-child {
  padding-left: var(--spacing-2xl);
}

.agent-table th:last-child {
  padding-right: var(--spacing-2xl);
}

.agent-table td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-gray-100);
  line-height: 1.6;
  color: var(--color-gray-700);
  transition: background var(--transition-fast);
}

.agent-table td:first-child {
  padding-left: var(--spacing-2xl);
}

.agent-table td:last-child {
  padding-right: var(--spacing-2xl);
}

.agent-table tbody tr {
  transition: all var(--transition-fast);
}

.agent-table tbody tr:hover {
  background: rgba(0,212,170,0.03);
}

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

.agent-table .agent-name {
  color: var(--color-ai);
  font-weight: 600;
}

.agent-table .agent-value {
  color: var(--color-cyan);
  font-weight: 700;
  font-size: var(--font-size-base);
}

.agent-table .agent-original {
  color: var(--color-gray-500);
}

.agent-table .agent-arrow {
  display: inline-block;
  color: var(--color-cyan);
  margin: 0 var(--spacing-sm);
  font-weight: 700;
}

.agent-table-footer {
  padding: var(--spacing-md) var(--spacing-2xl);
  background: var(--color-gray-50);
  border-top: 1px solid var(--color-gray-200);
  border-radius: 0 0 var(--border-radius-lg) var(--border-radius-lg);
  font-size: var(--font-size-xs);
  color: var(--color-gray-500);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

@media (max-width: 768px) {
  .agent-table-wrapper {
    margin: var(--spacing-lg) 0;
    border-radius: var(--border-radius-md);
  }
  .agent-table-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius-md) var(--border-radius-md) 0 0;
  }
  .agent-table {
    font-size: var(--font-size-xs);
  }
  .agent-table th,
  .agent-table td {
    padding: 10px 12px;
  }
  .agent-table th:first-child,
  .agent-table td:first-child {
    padding-left: var(--spacing-lg);
  }
  .agent-table th:last-child,
  .agent-table td:last-child {
    padding-right: var(--spacing-lg);
  }
  .agent-table-footer {
    padding: var(--spacing-sm) var(--spacing-lg);
  }
}