:root {
  --primary: #2554A5;
  --primary-dark: #001B5E;
  --primary-light: #3A6FD4;
  --accent: #7ED321;
  --accent-dark: #5CB015;
  --accent-orange: #f97316;
  --accent-orange-light: #fff7ed;
  --bg: #FFFFFF;
  --bg-light: #EEF3FB;
  --bg-section: #F5F6F8;
  --text: #1A1A2E;
  --text-muted: #666666;
  --border: #E8E8E8;
  --shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.1);
  --shadow-hover: 0 12px 32px rgba(37, 84, 165, 0.12);
  --radius: 8px;
  --radius-sm: 6px;
  --nav-height: 72px;
  --transition: 200ms ease;
  --transition-slow: 350ms cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Noto Sans SC', 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', system-ui, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-light); }

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

body { padding-top: var(--nav-height); }

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: #fff;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 8px rgba(0, 0, 0, 0.04);
  height: var(--nav-height);
  display: flex;
  align-items: center;
  transition: box-shadow var(--transition);
}

.navbar.scrolled {
  box-shadow: 0 2px 16px rgba(0, 27, 94, 0.1);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  flex-shrink: 1;
  min-width: 0;
}

.nav-brand img { height: 42px; width: auto; }

.nav-brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  padding-left: 16px;
  margin-left: 16px;
  border-left: 1px solid var(--border);
}

.nav-brand-text .cn {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
}

.nav-brand-text .en {
  font-size: 12px;
  font-weight: 400;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  flex-shrink: 0;
}

.nav-links li {
  flex-shrink: 0;
}

.nav-links a {
  display: block;
  padding: 23px 12px;
  font-size: 16px;
  font-weight: 500;
  color: var(--text-muted);
  white-space: nowrap;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  border-radius: 1px;
  transition: color var(--transition), border-color var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--primary);
}

/* Hero */
.hero {
  position: relative;
  min-height: calc(100vh - var(--nav-height));
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-top: calc(-1 * var(--nav-height));
  padding-top: var(--nav-height);
}

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

.hero-bg video,
.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(0, 13, 42, 0.78) 0%, rgba(0, 27, 94, 0.55) 60%, rgba(0, 27, 94, 0.35) 100%);
  z-index: 1;
}

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

.hero-content {
  max-width: 860px;
}

.hero-content h1 {
  font-size: clamp(2.5rem, 5.5vw, 4.25rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.22;
  margin-bottom: 28px;
  letter-spacing: 0.01em;
}

.hero-content h1 .accent {
  color: var(--accent);
}

.hero-content .tagline {
  font-size: clamp(1.125rem, 2.2vw, 1.5rem);
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: 18px;
  font-weight: 400;
}

.hero-content .desc {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.78);
  margin-bottom: 0;
  max-width: 860px;
  line-height: 1.9;
}

.hero-badges { display: none; }

.hero-actions { display: none; }

.hero-visual { display: none; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px 34px;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  box-shadow: 0 2px 8px rgba(0, 27, 94, 0.08);
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(37, 84, 165, 0.35);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.6);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border-color: #fff;
}

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

.btn-accent:hover {
  background: var(--accent-dark);
  color: #fff;
}

.hero-visual {
  display: flex;
  justify-content: center;
}

.hero-visual img {
  max-height: 320px;
  filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.3));
}

/* Sections */
section { padding: 104px 0; }

.section-header {
  text-align: center;
  max-width: 860px;
  margin: 0 auto 64px;
}

.section-label { display: none; }

.section-header h2 {
  font-size: clamp(2rem, 3.6vw, 2.75rem);
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
  line-height: 1.3;
}

.section-header h2::after {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  margin: 18px auto 0;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}

.section-header p {
  color: var(--text-muted);
  font-size: 17px;
  line-height: 1.8;
}

.section-link {
  display: inline-block;
  margin-top: 14px;
  font-size: 15px;
  color: var(--primary);
  font-weight: 500;
}

.section-link:hover { color: var(--primary-light); }

.section-sub {
  color: #ccc;
  font-size: 14px;
  margin-bottom: 8px;
}

.bg-light { background: var(--bg-section); }
.bg-primary { background: linear-gradient(135deg, var(--primary-dark), var(--primary)); color: #fff; }
.bg-primary .section-header h2,
.bg-primary .section-header p { color: #fff; }
.bg-primary .section-label { background: rgba(255,255,255,0.15); color: #fff; }

/* Stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat-card {
  text-align: center;
  padding: 40px 20px;
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}

.stat-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  border-color: rgba(37, 84, 165, 0.25);
}

.stat-card .number {
  font-size: 3.25rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 12px;
  font-variant-numeric: tabular-nums;
}

.stat-card .label {
  font-size: 15px;
  color: var(--text-muted);
  font-weight: 400;
}

.stats-tj-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.stats-tj-item {
  text-align: center;
  padding: 52px 16px;
  border-right: 1px solid var(--border);
}

.stats-tj-item:last-child { border-right: none; }

.stats-tj-item .icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}

.stats-tj-item .icon svg {
  width: 40px;
  height: 40px;
}

.stats-tj-item .number {
  font-size: 2.75rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
  font-variant-numeric: tabular-nums;
}

.stats-tj-item .label {
  font-size: 15px;
  color: var(--text-muted);
}

/* Platform cards (tj-it style) */
.platform-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.platform-grid .platform-card:nth-child(odd):last-child {
  grid-column: 1 / -1;
}

.platform-card {
  display: block;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 32px;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
  cursor: pointer;
}

.platform-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  border-color: rgba(37, 84, 165, 0.25);
}

.platform-card .platform-icon {
  width: 56px;
  height: 56px;
  margin-bottom: 20px;
  transition: transform var(--transition-slow);
}

.platform-card:hover .platform-icon {
  transform: scale(1.08);
}

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

.platform-card .platform-icon svg {
  width: 100%;
  height: 100%;
  color: var(--primary);
}

.platform-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 12px;
}

.platform-card h3 .arrow {
  color: #ccc;
  font-weight: 400;
  margin-left: 4px;
  display: inline-block;
  transition: color var(--transition), transform var(--transition);
}

.platform-card:hover h3 .arrow {
  color: var(--primary);
  transform: translateX(4px);
}

/* Image-background platform cards */
.platform-card.has-bg {
  position: relative;
  overflow: hidden;
  border-color: rgba(255, 255, 255, 0.08);
  min-height: 360px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.platform-card .platform-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  filter: brightness(1);
  transition: transform var(--transition-slow), filter var(--transition-slow);
}

.platform-card.has-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 13, 42, 0.05) 0%, rgba(0, 13, 42, 0.3) 55%, rgba(0, 13, 42, 0.7) 100%);
  z-index: 1;
}

.platform-card.has-bg > :not(.platform-bg) {
  position: relative;
  z-index: 2;
}

.platform-card.has-bg:hover .platform-bg {
  transform: scale(1.06);
  filter: brightness(1.15);
}

.platform-card.has-bg h3 {
  color: #fff;
  font-size: 22px;
}

.platform-card.has-bg p {
  color: rgba(255, 255, 255, 0.85);
}

.platform-card.has-bg h3 .arrow {
  color: rgba(255, 255, 255, 0.6);
}

.platform-card.has-bg:hover h3 .arrow {
  color: var(--accent);
}

.platform-card.has-bg .platform-icon {
  width: 64px;
  height: 64px;
  padding: 13px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.22);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.platform-card.has-bg .platform-icon svg {
  color: #fff;
}

.platform-card.has-bg .platform-icon img {
  filter: brightness(0) invert(1);
}

.platform-card p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.8;
}

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

.card-grid.cols-4 {
  grid-template-columns: repeat(4, 1fr);
}

.card {
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
  cursor: default;
}

a.card { cursor: pointer; }

.card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  border-color: rgba(37, 84, 165, 0.25);
}

.card-img {
  height: 200px;
  overflow: hidden;
  background: var(--bg-light);
}

.card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.card:hover .card-img img {
  transform: scale(1.04);
}

.card-body { padding: 24px; }

.card-body h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--primary-dark);
  margin-bottom: 12px;
}

.card-body p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.75;
}

.card-icon {
  width: 48px;
  height: 48px;
  background: var(--bg-light);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--primary);
}

/* Feature rows */
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  margin-bottom: 80px;
}

.feature-row:last-child { margin-bottom: 0; }
.feature-row.reverse { direction: rtl; }
.feature-row.reverse > * { direction: ltr; }

.feature-img {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
}

.feature-content h3 {
  font-size: clamp(1.5rem, 2.4vw, 1.875rem);
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 18px;
  line-height: 1.35;
}

.feature-content p {
  color: var(--text-muted);
  margin-bottom: 22px;
  font-size: 16px;
  line-height: 1.85;
}

.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 15px;
  color: var(--text);
  line-height: 1.7;
}

.feature-list li svg {
  flex-shrink: 0;
  margin-top: 3px;
  color: var(--accent);
}

/* Product tabs */
.product-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 40px;
}

.tab-btn {
  padding: 14px 22px;
  border: none;
  border-bottom: 3px solid transparent;
  border-radius: 0;
  background: transparent;
  font-size: 15px;
  font-weight: 400;
  color: var(--text-muted);
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition);
}

.tab-btn:hover,
.tab-btn.active {
  background: transparent;
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.product-tabs {
  border-bottom: 1px solid var(--border);
  padding-bottom: 0;
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.product-detail img {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.product-detail h3 {
  font-size: 1.625rem;
  color: var(--primary-dark);
  margin-bottom: 18px;
}

.product-detail p {
  color: var(--text-muted);
  margin-bottom: 18px;
  font-size: 16px;
  line-height: 1.85;
}

/* Team */
.team-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.team-card {
  display: flex;
  gap: 24px;
  padding: 32px;
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}

.team-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  border-color: rgba(37, 84, 165, 0.25);
}

.team-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 28px;
  font-weight: 700;
  flex-shrink: 0;
}

.team-info h3 {
  font-size: 21px;
  font-weight: 600;
  color: var(--primary-dark);
  margin-bottom: 4px;
}

.team-info .role {
  font-size: 14px;
  color: var(--primary);
  font-weight: 500;
  margin-bottom: 12px;
}

.team-info p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.75;
}

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

.eco-item {
  padding: 28px;
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  text-align: center;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  cursor: default;
}

.eco-item:hover {
  border-color: rgba(37, 84, 165, 0.25);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.eco-item .num {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
}

.eco-item h4 {
  font-size: 18px;
  font-weight: 600;
  color: var(--primary-dark);
  margin-bottom: 10px;
}

.eco-item p {
  font-size: 14.5px;
  color: var(--text-muted);
  line-height: 1.75;
}

/* CTA */
.cta-section {
  text-align: center;
  padding: 80px 0;
}

.cta-section h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 18px;
}

.cta-section p {
  font-size: 17px;
  opacity: 0.9;
  margin-bottom: 36px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

/* Footer */
.footer {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.8);
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand img { height: 48px; margin-bottom: 16px; }

.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  max-width: 300px;
}

.footer h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 20px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 15px;
  cursor: pointer;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
}

/* Page header */
.page-hero {
  position: relative;
  padding: 120px 0 96px;
  color: #fff;
  text-align: left;
  overflow: hidden;
  margin-top: calc(-1 * var(--nav-height));
  padding-top: calc(120px + var(--nav-height));
}

.page-hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.page-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(0, 13, 42, 0.75) 0%, rgba(0, 27, 94, 0.55) 60%, rgba(37, 84, 165, 0.45) 100%);
  z-index: 1;
}

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

.page-hero h1 {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.25;
}

.page-hero h1::after {
  content: '';
  display: block;
  width: 56px;
  height: 4px;
  margin-top: 22px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent), rgba(126, 211, 33, 0.2));
}

.page-hero p {
  font-size: 17px;
  opacity: 0.9;
  max-width: 720px;
  line-height: 1.8;
}

/* Footer video CTA */
.footer-cta {
  position: relative;
  padding: 100px 0;
  overflow: hidden;
  text-align: center;
  color: #fff;
}

.footer-cta video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.footer-cta-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 27, 94, 0.75);
  z-index: 1;
}

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

.footer-cta h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 14px;
}

.footer-cta p {
  font-size: 17px;
  opacity: 0.88;
  margin-bottom: 32px;
}

.footer-cta .phone {
  font-size: 2.75rem;
  font-weight: 700;
  margin-bottom: 8px;
  background: linear-gradient(90deg, #fff 30%, var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: #fff;
}

/* Floating widgets */
.float-contact {
  position: fixed;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  z-index: 999;
  background: var(--primary);
  color: #fff;
  padding: 16px 10px;
  border-radius: 4px 0 0 4px;
  writing-mode: vertical-rl;
  font-size: 14px;
  letter-spacing: 4px;
  cursor: pointer;
  box-shadow: -2px 0 12px rgba(37, 84, 165, 0.3);
  transition: background var(--transition);
  text-decoration: none;
}

.float-contact:hover {
  background: var(--primary-light);
  color: #fff;
}

.back-top {
  position: fixed;
  right: 20px;
  bottom: 24px;
  z-index: 999;
  width: 44px;
  height: 44px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
  color: var(--primary);
}

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

.back-top:hover {
  background: var(--bg-light);
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.contact-info-card {
  padding: 32px;
  background: var(--bg-section);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: box-shadow var(--transition), border-color var(--transition);
}

.contact-info-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: rgba(37, 84, 165, 0.25);
}

.contact-info-card h3 {
  font-size: 18px;
  color: var(--primary-dark);
  margin-bottom: 24px;
}

.contact-item {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
}

.contact-item svg { color: var(--primary); flex-shrink: 0; }

.contact-item strong {
  display: block;
  font-size: 14px;
  color: var(--text);
  margin-bottom: 4px;
}

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

.contact-form {
  padding: 32px;
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.contact-form h3 {
  margin-bottom: 24px;
  color: var(--primary-dark);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary);
}

.form-group textarea { resize: vertical; min-height: 120px; }

/* Responsive */
@media (max-width: 1024px) {
  .hero .container,
  .feature-row,
  .product-detail,
  .card-grid,
  .card-grid.cols-4,
  .platform-grid { grid-template-columns: 1fr; }
  .stats-grid,
  .stats-tj-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-tj-item { border-right: none; border-bottom: 1px solid var(--border); }
  .eco-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .feature-row.reverse { direction: ltr; }

  .nav-brand-text .cn { font-size: 15px; }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--border);
    padding: 8px 0;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
  }

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

  .nav-links a {
    padding: 12px 24px;
    font-size: 15px;
    white-space: normal;
    border-bottom: none;
    border-left: 3px solid transparent;
  }

  .nav-links a.active {
    border-left-color: var(--primary);
    background: var(--bg-section);
  }

  .nav-toggle { display: block; }
}

@media (max-width: 768px) {
  .float-contact { display: none; }

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

  .stats-grid,
  .eco-grid { grid-template-columns: 1fr; }

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

  section { padding: 64px 0; }
}

/* Icon text list cards (reference layout) */
.icon-list-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.icon-list-grid.cols-3 {
  grid-template-columns: repeat(3, 1fr);
}

.product-detail .product-shot {
  width: 100%;
  max-height: 420px;
  object-fit: contain;
  background: var(--bg-section);
}

.icon-list-card {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  padding: 28px 32px;
  border-radius: 12px;
  border: 1px solid transparent;
  box-shadow: var(--shadow);
  transition: box-shadow var(--transition), transform var(--transition);
}

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

.icon-list-card.blue {
  background: linear-gradient(135deg, #f0f5fc 0%, #f8fbff 100%);
  border-color: rgba(37, 84, 165, 0.08);
}

.icon-list-card.orange {
  background: linear-gradient(135deg, var(--accent-orange-light) 0%, #fffaf5 100%);
  border-color: rgba(249, 115, 22, 0.1);
}

.icon-list-icon {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.icon-list-card.blue .icon-list-icon {
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
  box-shadow: 0 4px 14px rgba(37, 84, 165, 0.28);
}

.icon-list-card.orange .icon-list-icon {
  background: linear-gradient(135deg, #fb923c 0%, var(--accent-orange) 100%);
  box-shadow: 0 4px 14px rgba(249, 115, 22, 0.28);
}

.icon-list-icon svg {
  width: 26px;
  height: 26px;
}

.icon-list-body { flex: 1; min-width: 0; }

.icon-list-body h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
  line-height: 1.4;
}

.icon-list-body p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 12px;
}

.icon-list-specs {
  list-style: none;
  padding: 0;
  margin: 0;
}

.icon-list-specs li {
  font-size: 14.5px;
  color: var(--text-muted);
  padding: 2px 0 2px 14px;
  position: relative;
  line-height: 1.6;
}

.icon-list-specs li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--primary);
}

.icon-list-card.orange .icon-list-specs li::before {
  background: var(--accent-orange);
}

/* legacy alias */
.hw-catalog { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }

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

.hw-scene-row.cols-2 {
  grid-template-columns: repeat(2, 1fr);
}

.hw-scene-card {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: #fff;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}

.hw-scene-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  border-color: rgba(37, 84, 165, 0.25);
}

.hw-scene-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.hw-scene-card:hover img {
  transform: scale(1.04);
}

.hw-scene-card.screenshot img {
  height: 280px;
  object-fit: contain;
  background: var(--bg-section);
}

.hw-scene-card .hw-scene-body {
  padding: 20px;
}

.hw-scene-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--primary-dark);
  margin-bottom: 10px;
}

.hw-scene-card p {
  font-size: 14.5px;
  color: var(--text-muted);
  line-height: 1.7;
}

.ai-module-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.ai-module-card {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: #fff;
  box-shadow: var(--shadow);
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}

.ai-module-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  border-color: rgba(37, 84, 165, 0.25);
}

.ai-module-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-bottom: 1px solid var(--border);
}

.ai-module-body {
  padding: 20px;
}

.ai-module-body h4 {
  font-size: 18px;
  font-weight: 600;
  color: var(--primary-dark);
  margin-bottom: 10px;
}

.ai-module-body > p {
  font-size: 14.5px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 12px;
}

.ai-module-body ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.ai-module-body ul li {
  font-size: 14px;
  color: var(--text);
  padding: 4px 0 4px 16px;
  position: relative;
  line-height: 1.5;
}

.ai-module-body ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
}

@media (max-width: 1024px) {
  .icon-list-grid,
  .icon-list-grid.cols-3,
  .hw-catalog,
  .hw-scene-row,
  .hw-scene-row.cols-2,
  .ai-module-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .icon-list-grid,
  .icon-list-grid.cols-3,
  .hw-catalog,
  .hw-scene-row,
  .hw-scene-row.cols-2,
  .ai-module-grid { grid-template-columns: 1fr; }

  .icon-list-card {
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 24px 20px;
  }

  .icon-list-specs li {
    padding-left: 0;
    text-align: left;
  }

  .icon-list-specs li::before { display: none; }
}

/* Scroll reveal (classes added by JS; without JS elements stay fully visible) */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 600ms ease, transform 600ms ease;
}

.reveal.in {
  opacity: 1;
  transform: none;
}

.reveal:nth-child(2) { transition-delay: 80ms; }
.reveal:nth-child(3) { transition-delay: 160ms; }
.reveal:nth-child(4) { transition-delay: 240ms; }
.reveal:nth-child(5) { transition-delay: 320ms; }

/* Utilities */
.mb-32 { margin-bottom: 32px; }
.mb-48 { margin-bottom: 48px; }
.mt-12 { margin-top: 12px; }
.w-full { width: 100%; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}