/* Balago - Corporate Website */
:root {
  --navy-950: #001428;
  --navy-900: #002d58;
  --navy-800: #003d75;
  --navy-700: #005599;
  --teal-500: #009cde;
  --teal-400: #33b5e5;
  --amber-500: #f59e0b;
  --amber-400: #fbbf24;
  --slate-50: #f8fafc;
  --slate-100: #f1f5f9;
  --slate-200: #e2e8f0;
  --slate-300: #cbd5e1;
  --slate-500: #64748b;
  --slate-600: #475569;
  --slate-700: #334155;
  --slate-800: #1e293b;
  --white: #ffffff;
  --shadow-sm: 0 1px 2px rgba(10, 22, 40, 0.06);
  --shadow-md: 0 4px 16px rgba(10, 22, 40, 0.08);
  --shadow-lg: 0 12px 40px rgba(10, 22, 40, 0.12);
  --radius: 12px;
  --radius-lg: 20px;
  --font-sans: "DM Sans", "Segoe UI", system-ui, sans-serif;
  --font-display: "Outfit", "Segoe UI", system-ui, sans-serif;
  --header-h: 72px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-sans);
  color: var(--slate-700);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  width: min(1200px, 92vw);
  margin-inline: auto;
}

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--navy-900);
  line-height: 1.2;
  font-weight: 700;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--teal-500);
  margin-bottom: 0.75rem;
}

.section-label::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--teal-500);
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: 1rem;
}

.section-desc {
  font-size: 1.0625rem;
  color: var(--slate-600);
  max-width: 640px;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: var(--transition);
}

.site-header.scrolled {
  border-bottom-color: var(--slate-200);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 2rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.logo-img {
  height: 40px;
  width: auto;
  max-width: 200px;
  display: block;
  object-fit: contain;
}

.site-header .logo-img {
  height: 38px;
}

.logo-brand-cn {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--navy-900);
  letter-spacing: 0.2em;
  white-space: nowrap;
  line-height: 1;
}

.footer-brand .logo {
  flex-wrap: wrap;
}

.footer-brand .logo-img {
  height: 36px;
  filter: none;
}

.footer-brand .logo-brand-cn {
  color: var(--white);
  letter-spacing: 0.18em;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.logo-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--navy-900);
}

.logo-tag {
  font-size: 0.65rem;
  color: var(--slate-500);
  letter-spacing: 0.02em;
}

.nav-main {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links {
  display: flex;
  gap: 1.75rem;
}

.nav-links a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--slate-700);
  transition: color var(--transition);
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--navy-900);
}

.nav-links a.active::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--teal-500);
  border-radius: 1px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.lang-switch {
  display: flex;
  background: var(--slate-100);
  border-radius: 8px;
  padding: 3px;
}

.lang-switch button {
  border: none;
  background: transparent;
  padding: 0.35rem 0.65rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--slate-500);
  cursor: pointer;
  border-radius: 6px;
  transition: var(--transition);
}

.lang-switch button.active {
  background: var(--white);
  color: var(--navy-900);
  box-shadow: var(--shadow-sm);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

.btn-primary {
  background: linear-gradient(135deg, var(--navy-800), var(--navy-900));
  color: var(--white);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: var(--navy-900);
  border: 1.5px solid var(--slate-300);
}

.btn-outline:hover {
  border-color: var(--navy-800);
  background: var(--slate-50);
}

.btn-accent {
  background: linear-gradient(135deg, var(--teal-500), var(--teal-400));
  color: var(--white);
}

.btn-accent:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(13, 148, 136, 0.35);
}

.btn-lg {
  padding: 0.85rem 1.75rem;
  font-size: 1rem;
}

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

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--navy-900);
  border-radius: 1px;
  transition: var(--transition);
}

/* Hero */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-h);
  overflow: hidden;
  background: var(--navy-950);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 40%, rgba(13, 148, 136, 0.15), transparent),
    radial-gradient(ellipse 50% 40% at 20% 80%, rgba(245, 158, 11, 0.08), transparent),
    linear-gradient(160deg, var(--navy-950) 0%, var(--navy-900) 50%, var(--navy-800) 100%);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 4rem 0 6rem;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 100px;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 1.5rem;
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  background: var(--teal-400);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero h1 {
  font-size: clamp(2.25rem, 5.5vw, 3.75rem);
  color: var(--white);
  max-width: 720px;
  margin-bottom: 1.25rem;
}

.hero h1 span {
  background: linear-gradient(90deg, var(--teal-400), var(--amber-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.75);
  max-width: 560px;
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 3rem;
}

/* Track widget */
.track-widget {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  max-width: 640px;
  backdrop-filter: blur(8px);
}

.track-widget h3 {
  color: var(--white);
  font-size: 1rem;
  margin-bottom: 0.75rem;
  font-weight: 600;
}

.track-form {
  display: flex;
  gap: 0.75rem;
}

.track-form input {
  flex: 1;
  padding: 0.85rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
  font-size: 0.9375rem;
  font-family: inherit;
}

.track-form input::placeholder {
  color: rgba(255, 255, 255, 0.45);
}

.track-form input:focus {
  outline: none;
  border-color: var(--teal-400);
  background: rgba(255, 255, 255, 0.12);
}

.hero-regions {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.region-chip {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
}

.region-chip strong {
  color: var(--white);
}

/* Stats */
.stats-bar {
  background: var(--white);
  margin-top: -3rem;
  position: relative;
  z-index: 2;
  padding-bottom: 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--slate-200);
  overflow: hidden;
}

.stat-item {
  padding: 2rem 1.5rem;
  text-align: center;
  border-right: 1px solid var(--slate-200);
}

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

.stat-value {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--navy-900);
  line-height: 1;
  margin-bottom: 0.35rem;
}

.stat-value span {
  color: var(--teal-500);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--slate-500);
}

/* Sections */
section {
  padding: 5rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-header .section-desc {
  margin-inline: auto;
}

/* Why us */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.why-card {
  padding: 2rem;
  border-radius: var(--radius);
  border: 1px solid var(--slate-200);
  background: var(--white);
  transition: var(--transition);
}

.why-card:hover {
  border-color: var(--teal-400);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.why-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(13, 148, 136, 0.12), rgba(15, 39, 68, 0.08));
  display: grid;
  place-items: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
}

.why-card h3 {
  font-size: 1.125rem;
  margin-bottom: 0.65rem;
}

.why-card p {
  font-size: 0.9375rem;
  color: var(--slate-600);
}

/* Services */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.service-card {
  position: relative;
  padding: 2rem;
  border-radius: var(--radius-lg);
  background: var(--slate-50);
  border: 1px solid var(--slate-200);
  overflow: hidden;
  transition: var(--transition);
}

.service-card.featured {
  background: linear-gradient(135deg, var(--navy-900), var(--navy-800));
  border-color: transparent;
  color: rgba(255, 255, 255, 0.85);
}

.service-card.featured h3,
.service-card.featured .service-num {
  color: var(--white);
}

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

.service-num {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  color: var(--slate-200);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.service-card.featured .service-num {
  color: rgba(255, 255, 255, 0.15);
}

.service-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.service-card p {
  font-size: 0.9375rem;
  margin-bottom: 1.25rem;
}

.service-card.featured p {
  color: rgba(255, 255, 255, 0.75);
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.service-tags span {
  font-size: 0.75rem;
  padding: 0.3rem 0.65rem;
  background: var(--white);
  border-radius: 100px;
  color: var(--navy-800);
  font-weight: 500;
}

.service-card.featured .service-tags span {
  background: rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.9);
}

/* Network */
.network-section {
  background: var(--slate-50);
}

.network-visual {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3rem;
  align-items: center;
}

.network-map {
  position: relative;
  aspect-ratio: 16/10;
  background: linear-gradient(180deg, var(--navy-900), var(--navy-950));
  border-radius: var(--radius-lg);
  overflow: hidden;
  padding: 2rem;
}

.map-svg {
  width: 100%;
  height: 100%;
}

.map-route {
  stroke: var(--teal-400);
  stroke-width: 1.5;
  fill: none;
  stroke-dasharray: 6 4;
  opacity: 0.6;
}

.map-hub {
  fill: var(--amber-400);
}

.map-hub-pulse {
  fill: var(--teal-400);
  opacity: 0.4;
  animation: hubPulse 2s ease-in-out infinite;
}

@keyframes hubPulse {
  0%, 100% { r: 4; opacity: 0.6; }
  50% { r: 8; opacity: 0.2; }
}

.network-routes {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.route-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--slate-200);
  transition: var(--transition);
}

.route-item:hover {
  border-color: var(--teal-400);
  box-shadow: var(--shadow-sm);
}

.route-flag {
  font-size: 1.75rem;
  line-height: 1;
}

.route-item h4 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.route-item p {
  font-size: 0.875rem;
  color: var(--slate-500);
}

/* Process */
.process-steps {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0.5rem;
  position: relative;
}

.process-steps::before {
  content: "";
  position: absolute;
  top: 28px;
  left: 8%;
  right: 8%;
  height: 2px;
  background: var(--slate-200);
  z-index: 0;
}

.process-step {
  text-align: center;
  position: relative;
  z-index: 1;
}

.step-num {
  width: 56px;
  height: 56px;
  margin: 0 auto 1rem;
  background: var(--white);
  border: 2px solid var(--teal-500);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--teal-500);
  font-size: 1rem;
}

.process-step h4 {
  font-size: 0.8125rem;
  margin-bottom: 0.25rem;
}

.process-step p {
  font-size: 0.75rem;
  color: var(--slate-500);
}

/* CTA */
.cta-banner {
  background: linear-gradient(135deg, var(--navy-900), var(--navy-800));
  border-radius: var(--radius-lg);
  padding: 3.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.cta-banner h2 {
  color: var(--white);
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: 0.5rem;
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.75);
  max-width: 480px;
}

.cta-actions {
  display: flex;
  gap: 1rem;
  flex-shrink: 0;
}

/* Footer */
.site-footer {
  background: var(--navy-950);
  color: rgba(255, 255, 255, 0.7);
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand .logo-name { color: var(--white); }
.footer-brand .logo-tag { color: rgba(255,255,255,0.5); }

.footer-brand p {
  margin-top: 1rem;
  font-size: 0.875rem;
  line-height: 1.7;
  max-width: 280px;
}

.footer-col h4 {
  color: var(--white);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-col a {
  font-size: 0.875rem;
  transition: color var(--transition);
}

.footer-col a:hover { color: var(--teal-400); }

.footer-entities {
  padding: 1.5rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: 2rem;
}

.footer-entities p {
  font-size: 0.8125rem;
  line-height: 1.8;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.8125rem;
}

/* Page hero (inner pages) */
.page-hero {
  padding: calc(var(--header-h) + 4rem) 0 4rem;
  background: linear-gradient(160deg, var(--navy-950), var(--navy-800));
  color: var(--white);
}

.page-hero h1 {
  color: var(--white);
  font-size: clamp(2rem, 4vw, 2.75rem);
  margin-bottom: 0.75rem;
}

.page-hero p {
  color: rgba(255, 255, 255, 0.75);
  font-size: 1.0625rem;
  max-width: 560px;
}

.breadcrumb {
  display: flex;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 1.5rem;
}

.breadcrumb a:hover { color: var(--teal-400); }

/* About timeline */
.timeline {
  position: relative;
  padding-left: 2rem;
  border-left: 2px solid var(--slate-200);
}

.timeline-item {
  position: relative;
  padding-bottom: 2.5rem;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -2rem;
  top: 0.25rem;
  width: 12px;
  height: 12px;
  background: var(--teal-500);
  border-radius: 50%;
  transform: translateX(-5px);
  border: 3px solid var(--white);
  box-shadow: 0 0 0 2px var(--teal-500);
}

.timeline-year {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--teal-500);
  font-size: 0.875rem;
  margin-bottom: 0.35rem;
}

.timeline-item h3 {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3rem;
}

.contact-info-card {
  padding: 2rem;
  background: var(--slate-50);
  border-radius: var(--radius-lg);
  border: 1px solid var(--slate-200);
}

.contact-item {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.75rem;
}

.contact-item:last-child { margin-bottom: 0; }

.contact-icon {
  width: 44px;
  height: 44px;
  background: var(--white);
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-size: 1.125rem;
  flex-shrink: 0;
  border: 1px solid var(--slate-200);
}

.contact-item h4 {
  font-size: 0.875rem;
  color: var(--slate-500);
  font-weight: 500;
  margin-bottom: 0.25rem;
}

.contact-item p,
.contact-item a {
  font-size: 0.9375rem;
  color: var(--navy-900);
  font-weight: 500;
}

.contact-form {
  padding: 2rem;
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--slate-700);
  margin-bottom: 0.4rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--slate-300);
  border-radius: 10px;
  font-family: inherit;
  font-size: 0.9375rem;
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--teal-500);
}

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

/* Tracking page */
.tracking-panel {
  max-width: 720px;
  margin: 0 auto;
  padding: 3rem;
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.tracking-result {
  margin-top: 2rem;
  padding: 1.5rem;
  background: var(--slate-50);
  border-radius: var(--radius);
  display: none;
}

.tracking-result.visible { display: block; }

.tracking-timeline {
  margin-top: 1.5rem;
}

.tracking-event {
  display: flex;
  gap: 1rem;
  padding-bottom: 1.25rem;
  position: relative;
}

.tracking-event:not(:last-child)::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 24px;
  bottom: 0;
  width: 2px;
  background: var(--slate-200);
}

.tracking-dot {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--teal-500);
  flex-shrink: 0;
  z-index: 1;
}

.tracking-event.done .tracking-dot { background: var(--slate-300); }
.tracking-event.current .tracking-dot {
  background: var(--teal-500);
  box-shadow: 0 0 0 4px rgba(13, 148, 136, 0.25);
}

/* Partners strip */
.partners-strip {
  padding: 3rem 0;
  background: var(--slate-50);
  border-top: 1px solid var(--slate-200);
  border-bottom: 1px solid var(--slate-200);
}

.partners-logos {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 2.5rem;
  opacity: 0.5;
}

.partner-placeholder {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--slate-400);
  letter-spacing: 0.02em;
}

/* Responsive */
@media (max-width: 1024px) {
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .network-visual { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item:nth-child(2) { border-right: none; }
  .stat-item { border-bottom: 1px solid var(--slate-200); }
  .process-steps { grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
  .process-steps::before { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .about-split { grid-template-columns: 1fr !important; }
  .nav-main {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 1.5rem;
    gap: 1rem;
    border-bottom: 1px solid var(--slate-200);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
  }

  .nav-main.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-links {
    flex-direction: column;
    gap: 0.75rem;
    width: 100%;
  }

  .nav-toggle { display: flex; }

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

  .stats-grid { grid-template-columns: 1fr; }
  .stat-item { border-right: none !important; }

  .track-form { flex-direction: column; }
  .cta-banner { flex-direction: column; text-align: center; }
  .cta-actions { flex-direction: column; width: 100%; }
  .cta-actions .btn { width: 100%; }

  .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
}

/* i18n visibility */
[data-lang="zh"] { display: none; }
html[lang="zh-Hant"] [data-lang="en"] { display: none; }
html[lang="zh-Hant"] [data-lang="zh"] { display: revert; }
html[lang="zh-Hant"] .section-label[data-lang="zh"],
html[lang="zh-Hant"] .btn[data-lang="zh"] { display: inline-flex; }