/* ==================== Reset & Base ==================== */
@font-face {
  font-family: 'Gotham';
  src: url('assets/fonts/Gotham-Medium.otf') format('opentype');
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

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

:root {
  --primary: #2563eb;
  --primary-dark: #1e40af;
  --primary-light: #3b82f6;
  --primary-lighter: #eff6ff;
  --secondary: #06b6d4;
  --accent: #f59e0b;
  --bg: #ffffff;
  --bg-light: #f8fafc;
  --bg-gray: #f1f5f9;
  --text: #1a1a2e;
  --text-light: #475569;
  --text-muted: #94a3b8;
  --border: #e2e8f0;
  --white: #ffffff;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.15);
  --radius: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --gradient: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%);
  --gradient-dark: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
}

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

body {
  font-family: 'Gotham', 'Microsoft YaHei', '微软雅黑', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

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

.gradient-text {
  background: linear-gradient(135deg, #0057D2 0%, #0070F2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ==================== Buttons ==================== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: #0057D2;
  color: white;
  border: none;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(37, 99, 235, 0.4);
}

.btn-primary i {
  transition: transform 0.3s;
}

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

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--border);
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: var(--transition);
}

.btn-outline:hover {
  border-color: var(--primary);
  background: var(--primary-lighter);
  transform: translateY(-2px);
}

.btn-outline:hover i {
  transform: translateX(4px);
}

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

.btn-contact {
  display: inline-flex;
  align-items: center;
  padding: 10px 24px;
  background: #0057D2;
  color: white;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  transition: var(--transition);
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.25);
}

.btn-contact:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.35);
}

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

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  background: var(--primary-lighter);
  color: var(--primary);
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 16px;
}

.section-title {
  font-size: 36px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
  line-height: 1.3;
}

.section-desc {
  font-size: 16px;
  color: var(--text-light);
  line-height: 1.8;
}

/* ==================== Navbar ==================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 16px 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

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

.logo img {
  height: 36px;
  width: auto;
}

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

.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-light);
  position: relative;
  padding: 4px 0;
  transition: var(--transition);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient);
  border-radius: 2px;
  transition: var(--transition);
}

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

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  width: 26px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

/* ==================== Hero ==================== */
.hero {
  position: relative;
  padding: 120px 0 0;
  overflow: hidden;
  background: linear-gradient(180deg, #f0f7ff 0%, #ffffff 100%);
}

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

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.3;
}

.blob-1 {
  width: 400px;
  height: 400px;
  background: var(--primary);
  top: -100px;
  right: -50px;
}

.blob-2 {
  width: 350px;
  height: 350px;
  background: var(--secondary);
  bottom: 100px;
  left: -80px;
}

.blob-3 {
  width: 300px;
  height: 300px;
  background: var(--accent);
  top: 40%;
  right: 30%;
  opacity: 0.1;
}

.hero-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
  padding-bottom: 60px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(37, 99, 235, 0.08);
  color: var(--primary);
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero-title {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.25;
  color: var(--text);
  margin-bottom: 20px;
}

.hero-desc {
  font-size: 16px;
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 32px;
}

.hero-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 36px;
}

.hero-feature {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  color: var(--text);
  font-weight: 500;
}

.hero-feature i {
  color: var(--primary);
  font-size: 20px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* Hero Visual */
.hero-right {
  position: relative;
}

.hero-visual {
  position: relative;
}

.visual-card {
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.card-main {
  border: 1px solid var(--border);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: var(--bg-light);
  border-bottom: 1px solid var(--border);
}

.card-dots {
  display: flex;
  gap: 6px;
}

.card-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #cbd5e1;
}

.card-dots span:nth-child(1) { background: #ef4444; }
.card-dots span:nth-child(2) { background: #f59e0b; }
.card-dots span:nth-child(3) { background: #22c55e; }

.card-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-light);
}

.card-body {
  padding: 24px;
}

.visual-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.visual-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  background: var(--bg-light);
  border-radius: var(--radius);
  transition: var(--transition);
}

.visual-item:hover {
  background: var(--primary-lighter);
  transform: translateY(-2px);
}

.visual-item i {
  font-size: 22px;
  color: var(--primary);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: white;
  border-radius: 10px;
}

.visual-item span {
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
}

.visual-item.highlight {
  background: var(--gradient);
}

.visual-item.highlight i {
  background: rgba(255, 255, 255, 0.2);
  color: white;
}

.visual-item.highlight span {
  color: white;
}

.card-float {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  border-radius: var(--radius);
  animation: float 3s ease-in-out infinite;
}

.card-float i {
  font-size: 24px;
}

.card-float strong {
  font-size: 24px;
  font-weight: 800;
  display: block;
  line-height: 1;
}

.card-float span {
  font-size: 12px;
  color: var(--text-light);
}

.card-float-1 {
  top: -20px;
  right: -30px;
  background: white;
  box-shadow: var(--shadow-lg);
  animation-delay: 0s;
}

.card-float-1 i { color: var(--accent); }
.card-float-1 strong { color: var(--text); }

.card-float-2 {
  bottom: -20px;
  left: -30px;
  background: white;
  box-shadow: var(--shadow-lg);
  animation-delay: 1.5s;
}

.card-float-2 i { color: var(--primary); }
.card-float-2 strong { color: var(--primary); }

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

/* Hero Platforms */
.hero-platforms {
  position: relative;
  z-index: 1;
  padding: 32px 0;
  background: white;
  border-top: 1px solid var(--border);
}

.platforms-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: nowrap;
}

.platform-item {
  flex: 1 1 0;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 14px;
}

.platform-item i {
  font-size: 28px;
  color: var(--primary);
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-lighter);
  border-radius: 14px;
}

.platform-item strong {
  display: block;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
}

.platform-item span {
  font-size: 12px;
  color: var(--text-muted);
  white-space: nowrap;
}

.platform-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

/* ==================== Data Highlights ==================== */
.data-highlights {
  padding: 60px 0;
  background: var(--bg-light);
}

.data-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  text-align: center;
}

.data-item {
  position: relative;
}

.data-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: -20px;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 60px;
  background: var(--border);
}

.data-number {
  font-size: 56px;
  font-weight: 800;
  background: linear-gradient(135deg, #0057D2 0%, #0070F2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 8px;
}

.data-label {
  font-size: 15px;
  color: var(--text-light);
  font-weight: 500;
}

/* ==================== AI Section ==================== */
.ai-section {
  padding: 100px 0;
  background: white;
}

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

.ai-card {
  padding: 36px 30px;
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.ai-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--gradient);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s;
}

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

.ai-card:hover::before {
  transform: scaleX(1);
}

.ai-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
}

.ai-icon-1 { background: #eff6ff; color: #2563eb; }
.ai-icon-2 { background: #f0fdf4; color: #16a34a; }
.ai-icon-3 { background: #fef3c7; color: #d97706; }
.ai-icon-4 { background: #fce7f3; color: #db2777; }
.ai-icon-5 { background: #f5f3ff; color: #7c3aed; }
.ai-icon-6 { background: var(--gradient); color: white; }

.ai-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}

.ai-card p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
}

.ai-card-highlight {
  background: var(--gradient-dark);
  border-color: transparent;
}

.ai-card-highlight h3 {
  color: white;
}

.ai-card-highlight p {
  color: rgba(255, 255, 255, 0.7);
}

.ai-card-highlight::before {
  background: var(--accent);
}

/* ==================== Services ==================== */
.services {
  padding: 100px 0;
  background: var(--bg-light);
}

.service-tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 40px;
}

.service-tab {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: white;
  border: 2px solid var(--border);
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  font-family: inherit;
  color: var(--text-light);
  cursor: pointer;
  transition: var(--transition);
}

.service-tab i {
  font-size: 18px;
}

.service-tab:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.service-tab.active {
  background: #0057D2;
  border-color: transparent;
  color: white;
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.25);
}

.service-content {
  background: white;
  border-radius: var(--radius-xl);
  padding: 48px;
  box-shadow: var(--shadow-md);
  min-height: 300px;
}

.service-panel {
  display: none;
  grid-template-columns: 1.5fr 1fr;
  gap: 48px;
  align-items: center;
}

.service-panel.active {
  display: grid;
}

.service-panel-left h3 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
}

.service-panel-left > p {
  font-size: 16px;
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 24px;
}

.service-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.service-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  color: var(--text);
}

.service-features i {
  color: var(--primary);
  font-size: 16px;
}

.service-panel-right {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.service-metric {
  text-align: center;
  padding: 32px 20px;
  background: var(--primary-lighter);
  border-radius: var(--radius-lg);
}

.service-metric strong {
  display: block;
  font-size: 48px;
  font-weight: 800;
  background: linear-gradient(135deg, #0057D2 0%, #0070F2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 8px;
}

.service-metric span {
  font-size: 14px;
  color: var(--text-light);
}

/* ==================== Cases ==================== */
.cases {
  padding: 100px 0;
  background: white;
}

.case-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.case-card {
  padding: 36px 28px;
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

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

.case-card-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--primary-lighter);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--primary);
  margin-bottom: 20px;
}

.case-card-logo {
  height: 56px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
}

.case-card-logo img {
  max-height: 48px;
  max-width: 180px;
  width: auto;
  height: auto;
  object-fit: contain;
}

.case-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 14px;
}

.case-quote {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 24px;
  font-style: italic;
}

.case-metrics {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  margin-top: auto;
}

.case-metric {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
}

.case-metric strong {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
}

.case-metric span {
  font-size: 13px;
  color: var(--text-muted);
}

.more-clients {
  text-align: center;
}

.more-clients-logos {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 32px;
  margin-bottom: 16px;
}

.client-logo-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 24px;
  background: var(--bg-light);
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-light);
}

.client-logo-item i {
  font-size: 20px;
  color: var(--primary);
}

.client-logo-item svg.ipo-badge {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  display: block;
}

.more-text {
  font-size: 14px;
  color: var(--text-muted);
}

/* ==================== Methodology ==================== */
.methodology {
  padding: 100px 0;
  background: var(--bg-light);
}

.method-tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 48px;
}

.method-tab {
  padding: 14px 36px;
  background: white;
  border: 2px solid var(--border);
  border-radius: 50px;
  font-size: 16px;
  font-weight: 600;
  font-family: inherit;
  color: var(--text-light);
  cursor: pointer;
  transition: var(--transition);
}

.method-tab:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.method-tab.active {
  background: #0057D2;
  border-color: transparent;
  color: white;
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.25);
}

.method-panel {
  display: none;
}

.method-panel.active {
  display: block;
}

/* Consulting Timeline */
.method-timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.method-step {
  position: relative;
}

.method-step-num {
  display: inline-block;
  padding: 6px 16px;
  background: #0057D2;
  color: white;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
}

.method-step-card {
  padding: 28px 24px;
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.method-step-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.method-step-card h4 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 14px;
}

.method-step-card ul li {
  font-size: 14px;
  color: var(--text-light);
  padding: 6px 0;
  padding-left: 20px;
  position: relative;
}

.method-step-card ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 12px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
}

/* Delivery Stages */
.method-stages {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.method-stage {
  padding: 32px 28px;
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.method-stage:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.method-stage-num {
  font-size: 40px;
  font-weight: 800;
  color: var(--primary-lighter);
  line-height: 1;
  margin-bottom: 12px;
}

.method-stage h4 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}

.method-stage p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
}

/* ==================== Team ==================== */
.team {
  padding: 100px 0;
  background: white;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.team-card {
  text-align: center;
  padding: 36px 28px;
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

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

.team-photo {
  width: 144px;
  height: 144px;
  margin: 0 auto 20px;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid var(--primary-lighter);
}

.team-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.team-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}

.team-role {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
}

/* ==================== Culture ==================== */
.culture {
  padding: 100px 0;
  background: var(--gradient-dark);
}

.culture .section-title {
  color: white;
}

.culture .section-desc {
  color: rgba(255, 255, 255, 0.65);
}

.culture-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
}

.culture-card {
  text-align: center;
  padding: 36px 20px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.culture-card:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-6px);
  border-color: rgba(255, 255, 255, 0.2);
}

.culture-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 16px;
  border-radius: 16px;
  background: rgba(37, 99, 235, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  color: var(--secondary);
}

.culture-card h3 {
  font-size: 15px;
  font-weight: 600;
  color: white;
  margin-bottom: 6px;
}

.culture-card p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

/* ==================== Partners ==================== */
.partners {
  padding: 80px 0;
  background: var(--bg-light);
}

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

.partner-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  text-align: center;
  gap: 0;
  padding: 0 0 12px;
  background: white;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  overflow: hidden;
}

.partner-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.partner-item img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: var(--radius) var(--radius) 0 0;
  flex-shrink: 0;
}

.partner-item span {
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  line-height: 1.4;
  margin-top: 8px;
  padding: 0 16px;
}

/* ==================== Contact ==================== */
.contact {
  padding: 100px 0;
  background: white;
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.contact-left .section-title {
  text-align: left;
  font-size: 32px;
}

.contact-left .section-desc {
  text-align: left;
  margin-bottom: 36px;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-info-item {
  display: flex;
  align-items: center;
  gap: 16px;
}

.contact-info-item i {
  font-size: 20px;
  color: var(--primary);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-lighter);
  border-radius: 12px;
}

.contact-info-item strong {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}

.contact-info-item span {
  font-size: 14px;
  color: var(--text-light);
}

.contact-right {
  background: var(--bg-light);
  border-radius: var(--radius-xl);
  padding: 40px;
}

.contact-form h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}

.form-hint {
  font-size: 14px;
  color: var(--text-light);
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  font-size: 15px;
  font-family: inherit;
  color: var(--text);
  background: white;
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
  resize: vertical;
}

.form-tip {
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 12px;
}

/* ==================== Footer ==================== */
.footer {
  background: #0f172a;
  padding: 60px 0 30px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 2fr;
  gap: 60px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
  height: 40px;
  margin-bottom: 20px;
  filter: brightness(0) invert(1);
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 20px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: rgba(255, 255, 255, 0.6);
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--primary);
  color: white;
}

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

.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: white;
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.5);
  padding: 6px 0;
  transition: var(--transition);
}

.footer-col a:hover {
  color: white;
}

.footer-bottom {
  text-align: center;
  padding-top: 30px;
}

.footer-bottom p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

/* ==================== Back to Top ==================== */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #0057D2;
  border: none;
  color: white;
  font-size: 18px;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(37, 99, 235, 0.3);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 999;
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(37, 99, 235, 0.4);
}

/* ==================== Responsive ==================== */
@media (max-width: 968px) {
  .nav-menu {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background: white;
    flex-direction: column;
    padding: 20px;
    gap: 8px;
    box-shadow: var(--shadow-lg);
  }

  .nav-menu.show {
    display: flex;
  }

  .nav-menu li {
    width: 100%;
  }

  .nav-link {
    display: block;
    padding: 12px 16px;
    border-radius: 10px;
  }

  .nav-link:hover,
  .nav-link.active {
    background: var(--primary-lighter);
  }

  .nav-link::after {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-right {
    display: none;
  }

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

  .hero-title {
    font-size: 32px;
  }

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

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

  .card-float-1 { right: 0; }
  .card-float-2 { left: 0; }

  .platforms-row {
    flex-direction: column;
    gap: 20px;
  }

  .platform-divider {
    display: none;
  }

  .data-row {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }

  .data-item:not(:last-child)::after {
    display: none;
  }

  .data-number {
    font-size: 42px;
  }

  .section-title {
    font-size: 28px;
  }

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

  .service-tabs {
    gap: 8px;
  }

  .service-tab {
    padding: 10px 18px;
    font-size: 14px;
  }

  .service-content {
    padding: 28px 20px;
  }

  .service-panel.active {
    grid-template-columns: 1fr;
    gap: 28px;
  }

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

  .case-cards {
    grid-template-columns: 1fr 1fr;
  }

  .method-timeline {
    grid-template-columns: 1fr 1fr;
  }

  .method-stages {
    grid-template-columns: 1fr 1fr;
  }

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

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

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

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

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

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

@media (max-width: 600px) {
  .hero-title {
    font-size: 26px;
  }

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

  .case-cards {
    grid-template-columns: 1fr;
  }

  .method-timeline {
    grid-template-columns: 1fr;
  }

  .method-stages {
    grid-template-columns: 1fr;
  }

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

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

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

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