/* ========================================
   领航企服 - 企业官方网站样式表 v2.0
   Premium Corporate Tech Style
   Optimized: Typography, Interactions, Visual, Effects
   ======================================== */

/* CSS Variables - Design Tokens */
:root {
  /* Color Palette - Blue Tech Professional Theme v2.0 */
  --color-bg-primary: #0f172a;
  --color-bg-secondary: #1e293b;
  --color-bg-tertiary: #334155;
  --color-bg-card: #1e293b;
  --color-bg-card-hover: #263546;

  /* Primary Colors - Sky Blue System */
  --color-primary: #0ea5e9;
  --color-primary-light: #38bdf8;
  --color-primary-dark: #0284c7;

  /* Secondary Colors - Cyan System */
  --color-secondary: #06b6d4;
  --color-secondary-light: #22d3ee;

  /* Accent Colors - Logo Gold System */
  --color-accent: #c9a962;
  --color-accent-light: #dbbf78;
  --color-accent-dark: #b8944f;

  /* Text Colors */
  --color-text-primary: #f1f5f9;
  --color-text-secondary: #cbd5e1;
  --color-text-tertiary: #94a3b8;

  /* Border Colors */
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-hover: rgba(255, 255, 255, 0.15);
  --color-border-accent: rgba(14, 165, 233, 0.4);

  /* Semantic Colors */
  --color-success: #10b981;
  --color-warning: #c9a962;
  --color-error: #ef4444;
  --color-info: #3b82f6;

  /* Typography - Optimized */
  --font-primary: 'Noto Serif SC', 'Source Han Serif SC', 'SimSun', serif;
  --font-secondary: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Font Scale - Major Third (1.25) */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;

  /* Line Heights - Better Readability */
  --leading-none: 1;
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --leading-loose: 1.75;

  /* Spacing - 8px Grid */
  --space-0: 0;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Layout */
  --container-max: 1280px;
  --container-padding: 1.5rem;

  /* Effects - Blue Tech Glow System */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.4);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.45);
  --shadow-2xl: 0 25px 50px rgba(0, 0, 0, 0.5);

  /* Glow Effects - Primary (Sky Blue) */
  --shadow-glow-primary: 0 0 40px rgba(14, 165, 233, 0.25);
  --shadow-glow-secondary: 0 0 30px rgba(6, 182, 212, 0.2);
  --shadow-glow-accent: 0 0 35px rgba(201, 169, 98, 0.2);

  --border-radius-sm: 6px;
  --border-radius: 8px;
  --border-radius-md: 12px;
  --border-radius-lg: 16px;
  --border-radius-xl: 24px;
  --border-radius-full: 9999px;

  /* Transitions - Optimized Easing */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-back: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-spring: cubic-bezier(0.175, 0.885, 0.32, 1.275);

  --duration-instant: 100ms;
  --duration-fast: 200ms;
  --duration-normal: 300ms;
  --duration-slow: 500ms;
  --duration-slower: 700ms;

  /* Z-Index */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 500;
  --z-modal-backdrop: 800;
  --z-modal: 900;
  --z-tooltip: 1000;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-secondary);
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* Selection */
::selection {
  background: var(--color-accent);
  color: var(--color-bg-primary);
}

/* Focus States - Better Accessibility */
:focus {
  outline: none;
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Scrollbar - Refined */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--color-bg-tertiary);
  border-radius: var(--border-radius-full);
  border: 2px solid var(--color-bg-secondary);
  transition: background var(--duration-fast);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary);
}

/* ========================================
   TYPOGRAPHY - Optimized Hierarchy
   ======================================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: 600;
  line-height: var(--leading-tight);
  color: var(--color-text-primary);
}

h1 {
  font-size: clamp(var(--text-4xl), 5vw + 1rem, var(--text-6xl));
  font-weight: 700;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(var(--text-3xl), 4vw + 0.5rem, var(--text-5xl));
  font-weight: 600;
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(var(--text-2xl), 3vw, var(--text-4xl));
}

h4 {
  font-size: clamp(var(--text-xl), 2vw, var(--text-2xl));
}

h5 {
  font-size: var(--text-lg);
}

h6 {
  font-size: var(--text-base);
}

p {
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-4);
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-in-out);
}

a:hover {
  color: var(--color-accent-light);
}

strong, b {
  font-weight: 600;
}

small {
  font-size: var(--text-sm);
}

/* ========================================
   LAYOUT
   ======================================== */
.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

.section {
  padding-block: var(--space-20);
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-12);
}

.section-subtitle {
  display: inline-block;
  color: var(--color-accent);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: var(--space-3);
}

.section-title {
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
}

.section-desc {
  max-width: 100%;
  margin-inline: auto;
  color: var(--color-text-tertiary);
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  white-space: nowrap;
}

/* ========================================
   HEADER & NAVIGATION
   ======================================== */
.header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: var(--z-fixed);
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition:
    background var(--duration-normal) var(--ease-in-out),
    box-shadow var(--duration-normal) var(--ease-in-out),
    border-color var(--duration-normal) var(--ease-in-out);
}

.header.scrolled {
  background: rgba(10, 14, 23, 0.95);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-border-hover);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  transition: opacity var(--duration-fast);
}

.logo:hover {
  opacity: 0.85;
}

.logo-icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

.logo-text {
  font-family: var(--font-primary);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: 0.05em;
}

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

/* Navigation */
.nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  font-weight: 500;
  text-decoration: none;
  background: transparent;
  border: none;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition:
    color var(--duration-fast) var(--ease-in-out),
    background var(--duration-fast) var(--ease-in-out);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-accent);
  background: rgba(201, 169, 98, 0.08);
}

.nav-link svg {
  width: 12px;
  height: 12px;
  transition: transform var(--duration-fast) var(--ease-out-expo);
}

.nav-item:hover .nav-link svg {
  transform: rotate(180deg);
}

/* Dropdown */
.dropdown {
  position: absolute;
  top: calc(100% + var(--space-2));
  inset-inline-start: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 150px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  padding: var(--space-2);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition:
    opacity var(--duration-fast) var(--ease-in-out),
    visibility var(--duration-fast) var(--ease-in-out),
    transform var(--duration-fast) var(--ease-out-expo);
  box-shadow: var(--shadow-xl);
}

.nav-item:hover .dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.dropdown-item {
  display: block;
  padding: var(--space-2) var(--space-3);
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  text-decoration: none;
  border-radius: var(--border-radius-sm);
  transition:
    background var(--duration-fast),
    color var(--duration-fast);
}

.dropdown-item:hover {
  background: rgba(201, 169, 98, 0.12);
  color: var(--color-accent);
}

/* CTA Button */
.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-5);
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  color: var(--color-bg-primary);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--border-radius);
  border: none;
  cursor: pointer;
  transition:
    transform var(--duration-fast) var(--ease-out-back),
    box-shadow var(--duration-fast) var(--ease-in-out),
    filter var(--duration-fast);
}

.btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-accent);
  color: var(--color-bg-primary);
  filter: brightness(1.05);
}

.btn-cta:active {
  transform: translateY(0);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  padding: var(--space-2);
  transition: background var(--duration-fast);
}

.menu-toggle:hover {
  background: rgba(255, 255, 255, 0.05);
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: 2px;
  transition:
    transform var(--duration-normal) var(--ease-out-expo),
    opacity var(--duration-fast);
}

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

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

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

/* Mobile Navigation */
.mobile-nav {
  display: none;
  position: fixed;
  inset-block-start: 72px;
  inset-inline: 0;
  inset-block-end: 0;
  background: rgba(10, 14, 23, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: calc(var(--z-fixed) - 1);
  padding: var(--space-6);
  overflow-y: auto;
  opacity: 0;
  visibility: hidden;
  transition:
    opacity var(--duration-normal) var(--ease-in-out),
    visibility var(--duration-normal) var(--ease-in-out);
}

.mobile-nav.active {
  opacity: 1;
  visibility: visible;
}

.mobile-nav-list {
  list-style: none;
}

.mobile-nav-item {
  border-bottom: 1px solid var(--color-border);
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) 0;
  color: var(--color-text-secondary);
  font-size: var(--text-lg);
  text-decoration: none;
  transition: color var(--duration-fast);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  color: var(--color-accent);
}

.mobile-dropdown {
  display: none;
  padding-block-end: var(--space-3);
}

.mobile-dropdown.active {
  display: block;
  animation: slideDown var(--duration-normal) var(--ease-out-expo);
}

.mobile-dropdown a {
  display: block;
  padding: var(--space-2) 0 var(--space-2) var(--space-4);
  color: var(--color-text-tertiary);
  font-size: var(--text-base);
  text-decoration: none;
  transition: color var(--duration-fast);
}

.mobile-dropdown a:hover {
  color: var(--color-accent);
}

.mobile-nav .btn-cta {
  width: 100%;
  justify-content: center;
  margin-block-start: var(--space-6);
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding-block-start: 72px;
  background:
    radial-gradient(ellipse 100% 60% at 50% 0%, rgba(59, 130, 246, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 80% 50% at 80% 70%, rgba(201, 169, 98, 0.05) 0%, transparent 50%),
    linear-gradient(180deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(59, 130, 246, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59, 130, 246, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 70%);
  animation: gridPulse 8s ease-in-out infinite;
}

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

.hero-content {
  position: relative;
  text-align: center;
  max-width: 860px;
  padding-inline: var(--container-padding);
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: rgba(201, 169, 98, 0.08);
  border: 1px solid rgba(201, 169, 98, 0.2);
  border-radius: var(--border-radius-full);
  margin-bottom: var(--space-6);
  animation: fadeInUp var(--duration-slow) var(--ease-out-expo) backwards;
}

.hero-badge svg {
  color: var(--color-accent);
  animation: pulse 2s ease-in-out infinite;
}

.hero-badge-text {
  color: var(--color-accent);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.1em;
}

.hero-title {
  margin-bottom: var(--space-4);
  background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: fadeInUp var(--duration-slow) var(--ease-out-expo) 0.1s backwards;
}

.hero-subtitle {
  font-family: var(--font-primary);
  font-size: clamp(var(--text-base), 2vw, var(--text-lg));
  color: var(--color-accent);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin-bottom: var(--space-4);
  animation: fadeInUp var(--duration-slow) var(--ease-out-expo) 0.2s backwards;
}

.hero-desc {
  font-size: clamp(var(--text-base), 1.5vw, var(--text-lg));
  color: var(--color-text-tertiary);
  max-width: 620px;
  margin-inline: auto var(--space-8);
  line-height: var(--leading-loose);
  animation: fadeInUp var(--duration-slow) var(--ease-out-expo) 0.3s backwards;
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp var(--duration-slow) var(--ease-out-expo) 0.4s backwards;
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  color: var(--color-bg-primary);
  font-size: var(--text-base);
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--border-radius);
  border: none;
  cursor: pointer;
  transition:
    transform var(--duration-fast) var(--ease-out-back),
    box-shadow var(--duration-fast) var(--ease-in-out),
    filter var(--duration-fast);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow-accent);
  color: var(--color-bg-primary);
  filter: brightness(1.08);
}

.btn-primary:active {
  transform: translateY(-1px);
}

.btn-primary svg {
  width: 18px;
  height: 18px;
  transition: transform var(--duration-fast) var(--ease-out-expo);
}

.btn-primary:hover svg {
  transform: translateX(4px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  background: transparent;
  color: var(--color-text-primary);
  font-size: var(--text-base);
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition:
    background var(--duration-fast),
    border-color var(--duration-fast),
    color var(--duration-fast),
    transform var(--duration-fast) var(--ease-out-back);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.03);
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-2px);
}

.btn-secondary:active {
  transform: translateY(0);
}

/* Hero Stats */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-16);
  padding-top: var(--space-10);
  border-top: 1px solid var(--color-border);
  animation: fadeInUp var(--duration-slow) var(--ease-out-expo) 0.5s backwards;
}

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

.stat-value {
  font-family: var(--font-primary);
  font-size: clamp(var(--text-3xl), 4vw, var(--text-5xl));
  font-weight: 700;
  color: var(--color-accent);
  line-height: var(--leading-none);
  margin-bottom: var(--space-2);
}

.stat-label {
  color: var(--color-text-tertiary);
  font-size: var(--text-sm);
  letter-spacing: 0.05em;
}

/* ========================================
   SERVICES SECTION
   ======================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.service-card {
  position: relative;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--space-8);
  overflow: hidden;
  transition:
    transform var(--duration-normal) var(--ease-out-expo),
    border-color var(--duration-normal),
    box-shadow var(--duration-normal);
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-primary));
  opacity: 0;
  transition: opacity var(--duration-normal);
}

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

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

.service-icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(201, 169, 98, 0.12) 0%, rgba(59, 130, 246, 0.08) 100%);
  border-radius: var(--border-radius-md);
  margin-bottom: var(--space-5);
  transition: transform var(--duration-normal) var(--ease-spring);
}

.service-card:hover .service-icon {
  transform: scale(1.08) rotate(3deg);
}

.service-icon svg {
  width: 28px;
  height: 28px;
  color: var(--color-accent);
}

.service-title {
  font-size: var(--text-xl);
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
  transition: color var(--duration-fast);
}

.service-card:hover .service-title {
  color: var(--color-accent);
}

.service-desc {
  color: var(--color-text-tertiary);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
}

/* ========================================
   FEATURES SECTION
   ======================================== */
.features-section {
  background: linear-gradient(180deg, var(--color-bg-secondary) 0%, var(--color-bg-tertiary) 100%);
  position: relative;
}

.features-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
}

.feature-item {
  text-align: center;
  padding: var(--space-6);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  transition:
    transform var(--duration-normal) var(--ease-out-expo),
    border-color var(--duration-normal),
    box-shadow var(--duration-normal);
}

.feature-item:hover {
  transform: translateY(-6px);
  border-color: var(--color-border-accent);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto var(--space-4);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(201, 169, 98, 0.08);
  border: 1px solid rgba(201, 169, 98, 0.15);
  border-radius: 50%;
  transition: transform var(--duration-normal) var(--ease-spring);
}

.feature-item:hover .feature-icon {
  transform: scale(1.1) rotate(5deg);
}

.feature-icon svg {
  width: 28px;
  height: 28px;
  color: var(--color-accent);
}

.feature-title {
  font-size: var(--text-base);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.feature-value {
  color: var(--color-accent);
  font-size: var(--text-3xl);
  font-weight: 700;
  font-family: var(--font-primary);
}

/* ========================================
   LOCATIONS SECTION
   ======================================== */
.locations-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.location-card {
  position: relative;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--space-8);
  overflow: hidden;
  transition:
    transform var(--duration-normal) var(--ease-out-expo),
    border-color var(--duration-normal),
    box-shadow var(--duration-normal);
}

.location-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  opacity: 0;
  transition: opacity var(--duration-normal);
}

.location-card:hover {
  transform: translateY(-6px);
  border-color: rgba(59, 130, 246, 0.3);
  box-shadow: var(--shadow-xl);
}

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

.location-bg {
  position: absolute;
  top: 0;
  right: 0;
  width: 120px;
  height: 120px;
  opacity: 0.05;
  transition: opacity var(--duration-normal);
}

.location-card:hover .location-bg {
  opacity: 0.1;
}

.location-badge {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  background: rgba(59, 130, 246, 0.12);
  border-radius: var(--border-radius-full);
  color: var(--color-primary-light);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-4);
}

.location-name {
  font-size: var(--text-2xl);
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
}

.location-desc {
  color: var(--color-text-tertiary);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
}

/* ========================================
   CTA SECTION
   ======================================== */
.cta-section {
  padding-block: var(--space-20);
}

.cta-box {
  position: relative;
  background: linear-gradient(135deg, var(--color-bg-card) 0%, var(--color-bg-tertiary) 100%);
  border: 1px solid var(--color-border-accent);
  border-radius: var(--border-radius-xl);
  padding: var(--space-16);
  text-align: center;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(ellipse at center, rgba(201, 169, 98, 0.06) 0%, transparent 50%);
  animation: ctaPulse 8s ease-in-out infinite;
}

@keyframes ctaPulse {
  0%, 100% { transform: scale(1); opacity: 0.5; }
  50% { transform: scale(1.1); opacity: 0.8; }
}

.cta-box::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent), var(--color-primary));
}

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

.cta-title {
  font-size: clamp(var(--text-2xl), 3vw, var(--text-4xl));
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
}

.cta-desc {
  color: var(--color-text-tertiary);
  font-size: var(--text-lg);
  max-width: 680px;
  margin-inline: auto;
  line-height: var(--leading-relaxed);
  white-space: nowrap;
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-16) var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: var(--space-12);
  margin-bottom: var(--space-10);
}

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

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

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

.footer-logo span {
  font-family: var(--font-primary);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text-primary);
}

.footer-desc {
  color: var(--color-text-tertiary);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-5);
}

.footer-social {
  display: flex;
  gap: var(--space-3);
}

.social-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition:
    background var(--duration-fast),
    border-color var(--duration-fast),
    color var(--duration-fast),
    transform var(--duration-fast) var(--ease-out-back);
}

.social-link:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-bg-primary);
  transform: translateY(-3px);
}

.social-link svg {
  width: 18px;
  height: 18px;
}

.footer-column h4 {
  font-family: var(--font-secondary);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--space-5);
  letter-spacing: 0.05em;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--space-3);
}

.footer-links a {
  color: var(--color-text-tertiary);
  font-size: var(--text-sm);
  text-decoration: none;
  transition: color var(--duration-fast);
}

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

.footer-bottom {
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 4px;
  text-align: center;
}

.footer-copyright {
  color: var(--color-text-tertiary);
  font-size: var(--text-xs);
  margin: 0;
}

.footer-beian {
  color: var(--color-text-tertiary);
  font-size: var(--text-xs);
  line-height: var(--leading-normal);
  margin: 0;
}

.footer-legal {
  display: flex;
  gap: var(--space-6);
}

.footer-legal a {
  color: var(--color-text-tertiary);
  font-size: var(--text-xs);
  text-decoration: none;
  transition: color var(--duration-fast);
}

.footer-legal a:hover {
  color: var(--color-accent);
}

/* ========================================
   PAGE HEADER
   ======================================== */
.page-header {
  padding-top: calc(72px + var(--space-16));
  padding-bottom: var(--space-12);
  text-align: center;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse 60% 40% at 50% 0%, rgba(59, 130, 246, 0.06) 0%, transparent 50%),
    linear-gradient(180deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
}

.page-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
}

.page-header-content {
  position: relative;
  z-index: 1;
}

.page-title {
  font-size: clamp(var(--text-3xl), 5vw, var(--text-5xl));
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
}

.page-subtitle {
  color: var(--color-accent);
  font-size: var(--text-sm);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

/* ========================================
   ABOUT PAGE
   ======================================== */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
}

.about-image {
  position: relative;
}

.about-image-main {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent-dark) 100%);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  position: relative;
}

.about-image-main::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, transparent 40%, rgba(201, 169, 98, 0.15) 100%);
}

.about-image-decoration {
  position: absolute;
  bottom: -16px;
  right: -16px;
  width: 180px;
  height: 180px;
  border: 2px solid rgba(201, 169, 98, 0.15);
  border-radius: var(--border-radius-lg);
  transition: transform var(--duration-slow) var(--ease-out-expo);
}

.about-image:hover .about-image-decoration {
  transform: translate(-8px, -8px);
}

.about-content h2 {
  margin-bottom: var(--space-5);
}

.about-content p {
  font-size: var(--text-base);
  line-height: var(--leading-loose);
}

/* Values Section */
.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.value-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--space-8);
  text-align: center;
  transition:
    transform var(--duration-normal) var(--ease-out-expo),
    border-color var(--duration-normal),
    box-shadow var(--duration-normal);
}

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

.value-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-5);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(201, 169, 98, 0.08);
  border: 1px solid rgba(201, 169, 98, 0.15);
  border-radius: 50%;
  transition: transform var(--duration-normal) var(--ease-spring);
}

.value-card:hover .value-icon {
  transform: scale(1.1) rotate(-5deg);
}

.value-icon svg {
  width: 32px;
  height: 32px;
  color: var(--color-accent);
}

.value-title {
  font-size: var(--text-xl);
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
}

.value-desc {
  color: var(--color-text-tertiary);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
}

/* Timeline */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 100%;
  background: linear-gradient(180deg, var(--color-accent) 0%, rgba(201, 169, 98, 0.1) 100%);
}

.timeline-item {
  position: relative;
  padding: var(--space-6) 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
}

.timeline-item:nth-child(odd) .timeline-content {
  text-align: right;
}

.timeline-item:nth-child(even) .timeline-content {
  grid-column: 2;
}

.timeline-dot {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 14px;
  height: 14px;
  background: var(--color-accent);
  border-radius: 50%;
  border: 3px solid var(--color-bg-primary);
  box-shadow: 0 0 0 2px var(--color-accent);
  transition: transform var(--duration-fast) var(--ease-out-back);
}

.timeline-item:hover .timeline-dot {
  transform: translateX(-50%) scale(1.3);
}

.timeline-year {
  color: var(--color-accent);
  font-family: var(--font-primary);
  font-size: var(--text-2xl);
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.timeline-title {
  color: var(--color-text-primary);
  font-size: var(--text-base);
  margin-bottom: var(--space-2);
}

.timeline-desc {
  color: var(--color-text-tertiary);
  font-size: var(--text-sm);
}

/* ========================================
   SERVICES PAGE
   ======================================== */
.services-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.service-detail {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-8);
  align-items: center;
  padding: var(--space-8);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  transition:
    border-color var(--duration-normal),
    box-shadow var(--duration-normal);
}

.service-detail:hover {
  border-color: var(--color-border-hover);
  box-shadow: var(--shadow-lg);
}

.service-detail:nth-child(even) {
  direction: rtl;
}

.service-detail:nth-child(even) > * {
  direction: ltr;
}

.service-detail-icon {
  width: 90px;
  height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(201, 169, 98, 0.08);
  border: 1px solid rgba(201, 169, 98, 0.15);
  border-radius: var(--border-radius-md);
  transition: transform var(--duration-normal) var(--ease-spring);
}

.service-detail:hover .service-detail-icon {
  transform: rotate(-5deg) scale(1.05);
}

.service-detail-icon svg {
  width: 40px;
  height: 40px;
  color: var(--color-accent);
}

.service-detail h3 {
  margin-bottom: var(--space-3);
}

.service-detail p {
  line-height: var(--leading-relaxed);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.service-detail-features {
  list-style: none;
  margin-top: var(--space-4);
}

.service-detail-features li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  margin-bottom: var(--space-3);
  transition: color var(--duration-fast);
}

.service-detail-features li:hover {
  color: var(--color-accent);
}

.service-detail-features li svg {
  width: 16px;
  height: 16px;
  color: var(--color-accent);
  flex-shrink: 0;
}

/* ========================================
   AI SOLUTIONS PAGE
   ======================================== */
.ai-platforms {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.ai-platform-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--space-8);
  transition:
    transform var(--duration-normal) var(--ease-out-expo),
    border-color var(--duration-normal),
    box-shadow var(--duration-normal);
}

.ai-platform-card:hover {
  border-color: var(--color-border-accent);
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.ai-platform-icon {
  width: 68px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(201, 169, 98, 0.08);
  border: 1px solid rgba(201, 169, 98, 0.15);
  border-radius: var(--border-radius-md);
  margin-bottom: var(--space-5);
  transition: transform var(--duration-normal) var(--ease-spring);
}

.ai-platform-card:hover .ai-platform-icon {
  transform: scale(1.08) rotate(3deg);
}

.ai-platform-icon svg {
  width: 32px;
  height: 32px;
  color: var(--color-accent);
}

.ai-platform-card h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-3);
}

.ai-platform-card p {
  color: var(--color-text-tertiary);
  line-height: var(--leading-relaxed);
}

/* ========================================
   PRODUCTS PAGE
   ======================================== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.product-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  transition:
    transform var(--duration-normal) var(--ease-out-expo),
    border-color var(--duration-normal),
    box-shadow var(--duration-normal);
}

.product-card:hover {
  transform: translateY(-8px);
  border-color: var(--color-border-accent);
  box-shadow: var(--shadow-2xl);
}

.product-image {
  height: 200px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent-dark) 100%);
  position: relative;
  overflow: hidden;
}

.product-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 70%, rgba(201, 169, 98, 0.15) 0%, transparent 50%);
}

.product-content {
  padding: var(--space-6);
}

.product-tag {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  background: rgba(201, 169, 98, 0.1);
  border: 1px solid rgba(201, 169, 98, 0.2);
  border-radius: var(--border-radius-full);
  color: var(--color-accent);
  font-size: var(--text-xs);
  font-weight: 600;
  margin-bottom: var(--space-3);
}

.product-content h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-3);
}

.product-content p {
  color: var(--color-text-tertiary);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-4);
}

.product-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-accent);
  font-size: var(--text-sm);
  font-weight: 500;
  text-decoration: none;
  transition: gap var(--duration-fast);
}

.product-link:hover {
  gap: var(--space-3);
}

.product-link svg {
  width: 16px;
  height: 16px;
}

/* ========================================
   FINANCE PAGE
   ======================================== */
.finance-features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
}

.finance-feature {
  text-align: center;
  padding: var(--space-6);
}

.finance-feature-icon {
  width: 76px;
  height: 76px;
  margin: 0 auto var(--space-4);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(201, 169, 98, 0.06);
  border: 1px solid rgba(201, 169, 98, 0.12);
  border-radius: 50%;
  transition: transform var(--duration-normal) var(--ease-spring);
}

.finance-feature:hover .finance-feature-icon {
  transform: scale(1.1);
}

.finance-feature-icon svg {
  width: 32px;
  height: 32px;
  color: var(--color-accent);
}

.finance-feature h4 {
  font-size: var(--text-base);
  margin-bottom: var(--space-2);
}

.finance-feature p {
  color: var(--color-text-tertiary);
  font-size: var(--text-xs);
}

/* ========================================
   CONTACT PAGE
   ======================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-8);
}

.contact-info {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--space-8);
}

.contact-info h3 {
  margin-bottom: var(--space-6);
}

.contact-item {
  display: flex;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.contact-item-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(201, 169, 98, 0.08);
  border: 1px solid rgba(201, 169, 98, 0.15);
  border-radius: var(--border-radius);
  flex-shrink: 0;
}

.contact-item-icon svg {
  width: 22px;
  height: 22px;
  color: var(--color-accent);
}

.contact-item-label {
  color: var(--color-text-tertiary);
  font-size: var(--text-xs);
  margin-bottom: var(--space-1);
}

.contact-item-value {
  color: var(--color-text-primary);
  font-size: var(--text-base);
  font-weight: 500;
}

.contact-form {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--space-8);
}

.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  font-weight: 500;
  margin-bottom: var(--space-2);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  color: var(--color-text-primary);
  font-size: var(--text-base);
  font-family: inherit;
  transition:
    border-color var(--duration-fast),
    box-shadow var(--duration-fast),
    background var(--duration-fast);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-tertiary);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(201, 169, 98, 0.1);
  background: var(--color-bg-tertiary);
}

.form-input:hover,
.form-textarea:hover,
.form-select:hover {
  border-color: var(--color-border-hover);
}

.form-textarea {
  min-height: 140px;
  resize: vertical;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 40px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

/* ========================================
   ANIMATIONS
   ======================================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Scroll Animations */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity var(--duration-slow) var(--ease-out-expo),
    transform var(--duration-slow) var(--ease-out-expo);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition:
    opacity var(--duration-slow) var(--ease-out-expo),
    transform var(--duration-slow) var(--ease-out-expo);
}

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

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition:
    opacity var(--duration-slow) var(--ease-out-expo),
    transform var(--duration-slow) var(--ease-out-expo);
}

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

.reveal-scale {
  opacity: 0;
  transform: scale(0.95);
  transition:
    opacity var(--duration-slow) var(--ease-out-expo),
    transform var(--duration-slow) var(--ease-out-expo);
}

.reveal-scale.visible {
  opacity: 1;
  transform: scale(1);
}

/* Stagger Animation */
.stagger-item {
  opacity: 0;
  transform: translateY(20px);
}

.stagger-item.visible {
  animation: fadeInUp var(--duration-slow) var(--ease-out-expo) forwards;
}

.stagger-item:nth-child(1) { animation-delay: 0ms; }
.stagger-item:nth-child(2) { animation-delay: 100ms; }
.stagger-item:nth-child(3) { animation-delay: 200ms; }
.stagger-item:nth-child(4) { animation-delay: 300ms; }
.stagger-item:nth-child(5) { animation-delay: 400ms; }
.stagger-item:nth-child(6) { animation-delay: 500ms; }

/* ========================================
   RESPONSIVE - Mobile First
   ======================================== */
@media (max-width: 1200px) {
  :root {
    --container-padding: 1.25rem;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }

  .footer-brand {
    grid-column: 1 / -1;
    max-width: 100%;
  }
}

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

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

@media (max-width: 992px) {
  :root {
    --container-padding: 1.25rem;
  }

  .nav-list {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

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

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

  .about-intro {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .about-image {
    order: -1;
  }

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

  .timeline::before {
    left: 20px;
  }

  .timeline-item {
    grid-template-columns: 1fr;
    padding-left: 60px;
  }

  .timeline-item:nth-child(odd) .timeline-content,
  .timeline-item:nth-child(even) .timeline-content {
    text-align: left;
    grid-column: 1;
  }

  .timeline-dot {
    left: 20px;
  }

  .service-detail {
    grid-template-columns: 1fr;
  }

  .service-detail:nth-child(even) {
    direction: ltr;
  }

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

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

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

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

@media (max-width: 768px) {
  .section {
    padding-block: var(--space-12);
  }

  .services-grid,
  .values-grid,
  .locations-grid {
    grid-template-columns: 1fr;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
  }

  .cta-box {
    padding: var(--space-10);
  }

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

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

  .form-row {
    grid-template-columns: 1fr;
  }

  .finance-features {
    grid-template-columns: 1fr;
  }

  .service-detail-icon {
    width: 72px;
    height: 72px;
  }

  .service-detail-icon svg {
    width: 32px;
    height: 32px;
  }
}

@media (max-width: 480px) {
  :root {
    --container-padding: 1rem;
  }

  .header-inner {
    height: 64px;
  }

  .logo-text {
    font-size: var(--text-lg);
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn-primary,
  .btn-secondary {
    width: 100%;
    justify-content: center;
  }

  .cta-box {
    padding: var(--space-8);
  }

  .ai-platform-card,
  .service-card {
    padding: var(--space-6);
  }
}

/* ========================================
   UTILITY CLASSES
   ======================================== */
.text-accent { color: var(--color-accent); }
.text-primary { color: var(--color-text-primary); }
.text-secondary { color: var(--color-text-secondary); }
.text-tertiary { color: var(--color-text-tertiary); }

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.mb-0 { margin-bottom: 0; }
.mt-auto { margin-top: auto; }

.hidden { display: none; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ========================================
   WECHAT FLOATING BUTTON
   ======================================== */
.wechat-float {
  position: fixed;
  bottom: 40px;
  right: 40px;
  z-index: var(--z-tooltip);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}

.wechat-float-btn {
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  border-radius: 50%;
  box-shadow: 0 4px 16px rgba(201, 169, 98, 0.3);
  cursor: pointer;
  transition:
    transform var(--duration-fast) var(--ease-out-back),
    box-shadow var(--duration-fast) var(--ease-in-out);
  position: relative;
}

.wechat-float-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(201, 169, 98, 0.4);
}

.wechat-float-btn svg {
  width: 26px;
  height: 26px;
  color: white;
}

.wechat-qrcode {
  position: absolute;
  bottom: calc(100% + var(--space-3));
  right: 0;
  background: white;
  border-radius: var(--border-radius-md);
  padding: var(--space-4);
  box-shadow: var(--shadow-2xl);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px) scale(0.95);
  transition:
    opacity var(--duration-normal) var(--ease-in-out),
    visibility var(--duration-normal) var(--ease-in-out),
    transform var(--duration-normal) var(--ease-out-expo);
  min-width: 200px;
}

.wechat-float-btn:hover .wechat-qrcode {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.wechat-qrcode::after {
  content: '';
  position: absolute;
  bottom: -6px;
  right: 24px;
  width: 12px;
  height: 12px;
  background: white;
  transform: rotate(45deg);
}

.qrcode-title {
  color: var(--color-bg-primary);
  font-size: var(--text-sm);
  font-weight: 600;
  text-align: center;
  margin-bottom: var(--space-3);
}

.qrcode-image {
  width: 160px;
  height: 160px;
  background: #f5f5f5;
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
}

.qrcode-image svg {
  width: 140px;
  height: 140px;
  color: var(--color-bg-primary);
}

.qrcode-hint {
  color: var(--color-text-tertiary);
  font-size: var(--text-xs);
  text-align: center;
  margin-top: var(--space-3);
}

/* Mobile: Hide wechat float */
@media (max-width: 768px) {
  .wechat-float {
    display: none;
  }
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .reveal,
  .reveal-left,
  .reveal-right,
  .reveal-scale {
    opacity: 1;
    transform: none;
  }
}