/* ========================================
   优力电驱动系统有限公司 - 企业官网样式表
   UNEDSYS Corporate Website Stylesheet
   ======================================== */

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

:root {
  --primary: #0057FF;
  --primary-dark: #0040CC;
  --primary-light: #E8EFFE;
  --accent: #00C896;
  --accent-dark: #00A878;
  --text-primary: #0D1117;
  --text-secondary: #4A5568;
  --text-muted: #8A9BB0;
  --bg-white: #FFFFFF;
  --bg-light: #F7F9FC;
  --bg-dark: #0A0F1E;
  --bg-darker: #060912;
  --border: #E2E8F0;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.10);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.12);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
}

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

/* ===== NAVBAR ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 5%;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.6);
  transition: box-shadow var(--transition);
}

.navbar.scrolled {
  box-shadow: var(--shadow-sm);
}

.nav-brand {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.nav-logo-img {
  height: 46px;
  width: auto;
  display: block;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  transition: color 0.2s, background 0.2s;
}

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

.nav-cta {
  background: var(--primary) !important;
  color: white !important;
  padding: 8px 20px !important;
  border-radius: var(--radius-sm) !important;
}

.nav-cta:hover {
  background: var(--primary-dark) !important;
}

.nav-toggle {
  display: none;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  margin: 5px 0;
  transition: var(--transition);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 6px);
}

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

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -6px);
}

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  padding: 0 5%;
  background: var(--bg-dark);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 87, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 87, 255, 0.08) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero-bg-glow {
  position: absolute;
  top: -20%;
  left: 20%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 87, 255, 0.18) 0%, transparent 70%);
  pointer-events: none;
  animation: glowMove 8s ease-in-out infinite alternate;
}

.hero-bg-glow2 {
  position: absolute;
  bottom: -10%;
  right: 10%;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 200, 150, 0.12) 0%, transparent 70%);
  pointer-events: none;
  animation: glowMove2 10s ease-in-out infinite alternate;
}

@keyframes glowMove {
  from { transform: translate(0, 0); }
  to { transform: translate(40px, 30px); }
}

@keyframes glowMove2 {
  from { transform: translate(0, 0); }
  to { transform: translate(-30px, -20px); }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 680px;
  padding-top: 72px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(0, 87, 255, 0.15);
  border: 1px solid rgba(0, 87, 255, 0.3);
  border-radius: 100px;
  color: #7EB3FF;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 32px;
}

.hero-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.3); }
}

.hero-title {
  font-size: clamp(36px, 5vw, 62px);
  font-weight: 700;
  line-height: 1.15;
  color: white;
  letter-spacing: -1px;
  margin-bottom: 24px;
}

.hero-title .highlight {
  color: transparent;
  background: linear-gradient(135deg, #4D9FFF, var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
}

.hero-desc {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.8;
  margin-bottom: 40px;
  max-width: 560px;
}

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

.btn-primary {
  padding: 14px 32px;
  background: var(--primary);
  color: white;
  font-size: 15px;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s, transform 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

.btn-outline {
  padding: 14px 32px;
  background: transparent;
  color: rgba(255, 255, 255, 0.85);
  font-size: 15px;
  font-weight: 500;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-decoration: none;
  transition: border-color 0.2s, color 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-outline:hover {
  border-color: rgba(255, 255, 255, 0.6);
  color: white;
}

.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 64px;
  padding-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.hero-stat-num {
  font-size: 36px;
  font-weight: 700;
  color: white;
  line-height: 1;
  margin-bottom: 4px;
}

.hero-stat-num span {
  color: var(--primary);
  font-size: 22px;
}

.hero-stat-label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

.hero-visual {
  position: absolute;
  right: 5%;
  top: 50%;
  transform: translateY(-50%);
  width: 45%;
  max-width: 560px;
  z-index: 1;
}

.hero-card-stack {
  position: relative;
  padding: 40px 0;
}

.hero-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.hero-card-main {
  background: rgba(20, 30, 60, 0.8);
  position: relative;
  z-index: 2;
}

.hero-card-float {
  position: absolute;
  right: -24px;
  bottom: -20px;
  width: 220px;
  z-index: 3;
  background: rgba(0, 200, 150, 0.1);
  border-color: rgba(0, 200, 150, 0.25);
}

.card-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.2px;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 20px;
}

.card-value-lg {
  font-size: 42px;
  font-weight: 700;
  color: white;
  line-height: 1;
  margin-bottom: 8px;
}

.card-trend {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 500;
}

.card-bars {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  margin-top: 20px;
  height: 48px;
}

.bar {
  flex: 1;
  background: rgba(0, 87, 255, 0.3);
  border-radius: 3px;
  transition: background 0.3s;
}

.bar.active {
  background: var(--primary);
}

.float-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(0, 200, 150, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}

.float-num {
  font-size: 22px;
  font-weight: 700;
  color: white;
}

.float-desc {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 4px;
}

/* ===== SECTION COMMON ===== */
section {
  padding: 100px 5%;
}

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

.section-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--primary);
  background: var(--primary-light);
  padding: 4px 14px;
  border-radius: 100px;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(26px, 3.5vw, 42px);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.5px;
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ===== FEATURES ===== */
#features {
  background: var(--bg-light);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  transition: box-shadow 0.25s, transform 0.25s, border-color 0.25s;
  cursor: default;
}

.feature-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: rgba(0, 87, 255, 0.2);
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  position: relative;
  overflow: hidden;
}

.feature-icon svg {
  width: 28px;
  height: 28px;
  position: relative;
  z-index: 1;
}

.feature-icon.blue {
  background: linear-gradient(135deg, rgba(26, 86, 255, 0.13), rgba(0, 87, 255, 0.08));
  border: 1px solid rgba(0, 87, 255, 0.13);
}

.feature-icon.blue svg { color: #0057FF; }

.feature-icon.green {
  background: linear-gradient(135deg, rgba(0, 200, 150, 0.13), rgba(0, 168, 120, 0.08));
  border: 1px solid rgba(0, 200, 150, 0.13);
}

.feature-icon.green svg { color: #00A878; }

.feature-icon.orange {
  background: linear-gradient(135deg, rgba(255, 140, 0, 0.13), rgba(245, 112, 0, 0.08));
  border: 1px solid rgba(255, 140, 0, 0.13);
}

.feature-icon.orange svg { color: #E07000; }

.feature-icon.purple {
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.13), rgba(109, 40, 217, 0.08));
  border: 1px solid rgba(124, 58, 237, 0.13);
}

.feature-icon.purple svg { color: #7C3AED; }

.feature-icon.red {
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.13), rgba(220, 38, 38, 0.08));
  border: 1px solid rgba(239, 68, 68, 0.13);
}

.feature-icon.red svg { color: #DC2626; }

.feature-icon.teal {
  background: linear-gradient(135deg, rgba(8, 145, 178, 0.13), rgba(14, 116, 144, 0.08));
  border: 1px solid rgba(8, 145, 178, 0.13);
}

.feature-icon.teal svg { color: #0891B2; }

.feature-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.feature-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ===== CULTURE ===== */
#culture {
  background: var(--bg-light);
}

.culture-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  max-width: 1100px;
  margin: 0 auto;
}

.culture-card {
  text-align: center;
  padding: 48px 32px;
  border: 1px solid var(--border);
  background-color:#1f66f0;
  border-radius: var(--radius-xl);
  transition: box-shadow 0.3s, transform 0.3s, border-color 0.3s;
  position: relative;
  overflow: hidden;
}

.culture-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transition: transform 0.4s;
}

.culture-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-6px);
  border-color: rgba(0, 87, 255, 0.2);
}

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

.culture-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 24px;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--primary-light), rgba(0, 200, 150, 0.08));
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.culture-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.culture-value {
  font-size: 22px;
  font-weight: 700;
  color: white;
  margin-bottom: 12px;
  line-height: 1.4;
}

.culture-desc {
  font-size: 14px;
  color: #dadce0;
  line-height: 1.8;
}

.culture-pillars {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-top: 56px;
  flex-wrap: wrap;
}

.culture-pillar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 28px;
  background: var(--bg-light);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-secondary);
  transition: all 0.3s;
}

.culture-pillar:hover {
  background: var(--primary-light);
  color: var(--primary);
  border-color: rgba(0, 87, 255, 0.2);
}

.culture-pillar .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
}

/* ===== SERVICES ===== */
.services-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.services-content { order: 1; }
.services-visual { order: 2; }

.service-list {
  list-style: none;
  margin-top: 40px;
}

.service-item {
  display: flex;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}

.service-item:last-child { border-bottom: none; }

.service-num {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

.service-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.service-desc-sm {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.services-panel {
  background: var(--bg-dark);
  border-radius: var(--radius-xl);
  padding: 48px 40px;
  position: relative;
  overflow: hidden;
}

.services-panel::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(0, 87, 255, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.panel-title {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 32px;
  letter-spacing: 1px;
  text-transform: uppercase;
  position: relative;
  z-index: 1;
}

.panel-metric {
  margin-bottom: 28px;
  position: relative;
  z-index: 1;
}

.panel-metric-label {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.45);
  margin-bottom: 8px;
}

.panel-metric-bar-wrap {
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 6px;
}

.panel-metric-bar {
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transition: width 1.2s ease;
}

.panel-metric-val {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  font-weight: 500;
}

.panel-cities {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 32px;
  position: relative;
  z-index: 1;
}

.panel-city {
  padding: 5px 14px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 100px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.6);
}

/* ===== PRODUCTS ===== */
#products {
  background: var(--bg-light);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  margin-top: 48px;
}

.product-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
}

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

.product-card-img-wrap {
  width: 100%;
  aspect-ratio: 16 / 10;
  background: var(--bg-white);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-card-img {
  width: 100%;
  /*height: 95%;*/
  object-fit: cover;
  display: block;
}

.product-card-body {
  padding: 32px;
}

.product-card-tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  border-radius: 100px;
  margin-bottom: 14px;
}

.product-card-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.product-card-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 18px;
}

.product-card-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.product-card-features li {
  font-size: 13px;
  color: var(--text-secondary);
  padding-left: 22px;
  position: relative;
}

.product-card-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 14px;
  height: 14px;
  background: var(--primary-light);
  border-radius: 50%;
}

.product-card-features li::after {
  content: '';
  position: absolute;
  left: 4px;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  background: var(--primary);
  border-radius: 50%;
}

/* ===== TECHNOLOGY ===== */
#technology {
  background: var(--bg-white);
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.tech-cell {
  background: var(--bg-white);
  padding: 40px 36px;
  transition: background 0.2s;
}

.tech-cell:hover { background: #F0F5FF; }

.tech-cell-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  background: linear-gradient(135deg, rgba(0, 87, 255, 0.1), rgba(0, 87, 255, 0.03));
  border: 1px solid rgba(0, 87, 255, 0.1);
}

.tech-cell-icon svg {
  width: 26px;
  height: 26px;
  color: #0057FF;
}

.tech-cell:hover .tech-cell-icon {
  background: linear-gradient(135deg, rgba(0, 87, 255, 0.16), rgba(0, 87, 255, 0.08));
  border-color: rgba(0, 87, 255, 0.19);
}

.tech-cell-title {
  font-size: 16px;
  font-weight: 600;
  color: #156ff6;
  margin-bottom: 10px;
}

.tech-cell-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== PARTNERS ===== */
.partners-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 40px;
}

.partner-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 24px 32px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: box-shadow 0.2s, border-color 0.2s;
  min-width: 160px;
}

.partner-item:hover {
  box-shadow: var(--shadow-sm);
  border-color: rgba(0, 87, 255, 0.25);
}

.partner-logo {
  width: 100%;
  height: 56px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.partner-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.partner-name {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
  text-align: center;
}

.partner-role {
  font-size: 11px;
  color: var(--text-muted);
  text-align: center;
}

/* ===== MILESTONES ===== */
#milestones {
  background: var(--bg-dark);
}

#milestones .section-title { color: white; }
#milestones .section-desc { color: rgba(255, 255, 255, 0.5); }
#milestones .section-tag {
  background: rgba(0, 87, 255, 0.2);
  color: #7EB3FF;
}

.timeline-h {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 20px 0 28px;
  scrollbar-width: thin;
  scrollbar-color: rgba(0, 87, 255, 0.3) transparent;
}

.timeline-h::-webkit-scrollbar { height: 6px; }
.timeline-h::-webkit-scrollbar-track { background: rgba(255,255,255,0.05); border-radius: 3px; }
.timeline-h::-webkit-scrollbar-thumb { background: rgba(0, 87, 255, 0.3); border-radius: 3px; }

.timeline-h-track {
  display: flex;
  gap: 20px;
  position: relative;
  padding: 0 20px;
  min-width: max-content;
}

.timeline-h-line {
  position: absolute;
  top: 6px;
  left: 20px;
  right: 20px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.12) 8%, rgba(255,255,255,0.12) 92%, transparent);
}

.timeline-h-item {
  flex: 0 0 200px;
  position: relative;
  padding-top: 24px;
}

.timeline-h-dot {
  position: absolute;
  top: 0;
  left: 0;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--primary);
  border: 3px solid rgba(0, 87, 255, 0.3);
  z-index: 1;
}

.timeline-h-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: 20px 18px;
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
}

.timeline-h-card:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(0, 87, 255, 0.3);
  transform: translateY(-3px);
}

.timeline-h-year {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.2px;
  color: var(--primary);
  margin-bottom: 6px;
}

.timeline-h-event {
  font-size: 14px;
  font-weight: 600;
  color: white;
  margin-bottom: 8px;
  line-height: 1.4;
}

.timeline-h-detail {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.45);
  line-height: 1.6;
}

/* ===== AWARDS ===== */
.awards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.award-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  text-align: center;
  transition: box-shadow 0.2s, transform 0.2s, border-color 0.2s;
}

.award-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: rgba(0, 87, 255, 0.2);
}

.award-year {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  background: var(--primary-light);
  color: var(--primary);
  padding: 3px 10px;
  border-radius: 100px;
  margin-bottom: 16px;
}

.award-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.award-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.award-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.5;
}

/* ===== CONTACT ===== */
#contact {
  background: var(--bg-light);
}

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

.contact-info-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
  line-height: 1.3;
}

.contact-info-desc {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 40px;
  line-height: 1.8;
}

.contact-detail {
  display: flex;
  gap: 14px;
  margin-bottom: 20px;
  align-items: flex-start;
}

.contact-detail-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.contact-detail-icon svg {
  width: 20px;
  height: 20px;
  color: var(--primary);
}

.contact-detail-label {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 3px;
}

.contact-detail-value {
  font-size: 14px;
  color: var(--text-primary);
  font-weight: 500;
}

.contact-map {
  display: block;
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  height: 360px;
  text-decoration: none;
  cursor: pointer;
}

.contact-map-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.contact-map-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,0.6));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 16px;
  font-size: 13px;
  font-weight: 500;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.contact-map:hover .contact-map-overlay {
  opacity: 1;
}

/* ===== FOOTER ===== */
footer {
  background: var(--bg-dark);
  padding: 80px 5% 40px;
  color: rgba(255, 255, 255, 0.6);
}

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

.footer-brand {
  display: flex;
  flex-direction: column;
}

.footer-logo-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.footer-logo-img {
  height: 36px;
  width: auto;
  display: block;
  flex-shrink: 0;
}

.footer-brand-name {
  font-size: 16px;
  font-weight: 700;
  color: white;
}

.footer-tagline {
  font-size: 13px;
  line-height: 1.8;
  margin-bottom: 24px;
}

.footer-socials {
  display: flex;
  gap: 10px;
}

.social-btn {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: background 0.2s;
  cursor: pointer;
}

.social-btn:hover {
  background: rgba(0, 87, 255, 0.3);
}

.footer-col-title {
  font-size: 13px;
  font-weight: 600;
  color: white;
  letter-spacing: 0.5px;
  margin-bottom: 20px;
}

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

.footer-links li { margin-bottom: 12px; }

.footer-links a {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
  text-decoration: none;
  transition: color 0.2s;
}

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

.footer-divider {
  border: none;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: 28px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-copy {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.35);
}

/* ===== SCROLL ANIMATION ===== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ===== BACK TO TOP ===== */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border: none;
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s, transform 0.3s, background 0.2s;
  box-shadow: var(--shadow-md);
}

.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
}

.back-to-top:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

.back-to-top svg {
  width: 22px;
  height: 22px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .hero-visual { display: none; }
  .services-wrapper { grid-template-columns: 1fr; gap: 40px; }
  .products-grid { grid-template-columns: 1fr; gap: 32px; }
  .tech-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .culture-grid { grid-template-columns: 1fr; gap: 24px; }
  .contact-wrapper { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  section { padding: 72px 5%; }

  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: white;
    padding: 20px;
    border-bottom: 1px solid var(--border);
    gap: 4px;
    box-shadow: var(--shadow-md);
  }

  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }

  .hero-stats { flex-direction: column; gap: 20px; }
  .tech-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }

  .timeline-h-item { flex: 0 0 160px; }
  .timeline-h-card { padding: 16px 14px; }
  .timeline-h-event { font-size: 13px; }
  .timeline-h-detail { font-size: 11px; }

  .culture-pillars { gap: 12px; }
  .culture-pillar { padding: 10px 20px; font-size: 13px; }

  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
  }
}