/* ============================================================
   健源启晟 - 全局样式
   配色: #0F1C2E 深藏青 | #142536 浅藏青 | #7AB555 绿 | #1B7FB8 蓝
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;600;700;900&display=swap');

:root {
  --navy: #0F1C2E;
  --navy-light: #142536;
  --navy-mid: #1A3048;
  --green: #7AB555;
  --green-dark: #5E9A3D;
  --green-glow: rgba(122, 181, 85, 0.25);
  --blue: #1B7FB8;
  --blue-dark: #15659A;
  --blue-glow: rgba(27, 127, 184, 0.25);
  --white: #ffffff;
  --off-white: #F8F9FB;
  --gray-100: #E8ECF0;
  --gray-300: #A0AEC0;
  --gray-500: #4A5568;
  --gray-700: #2D3748;
  --font-cn: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --transition: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

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

body {
  font-family: var(--font-cn);
  color: var(--white);
  background: var(--navy);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

/* === Utility === */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 16px;
}
.section-label::before {
  content: '';
  width: 32px;
  height: 2px;
  background: var(--green);
}

.section-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.section-desc {
  font-size: 17px;
  color: var(--gray-300);
  max-width: 640px;
  line-height: 1.8;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 36px;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font-cn);
  border: none;
  cursor: pointer;
  transition: all 0.4s var(--transition);
  text-decoration: none;
}
.btn-primary {
  background: var(--green);
  color: var(--white);
  box-shadow: 0 4px 20px var(--green-glow);
}
.btn-primary:hover {
  background: var(--green-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--green-glow);
}
.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,0.25);
}
.btn-outline:hover {
  border-color: var(--green);
  color: var(--green);
  background: rgba(122,181,85,0.06);
}
.btn-arrow::after {
  content: '\2192';
  font-size: 18px;
  transition: transform 0.3s;
}
.btn-arrow:hover::after {
  transform: translateX(4px);
}

/* === Navigation === */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0 40px;
  height: 72px;
  display: flex;
  align-items: center;
  transition: all 0.4s var(--transition);
}
.nav.scrolled {
  background: rgba(15, 28, 46, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 rgba(255,255,255,0.06);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-logo img {
  height: 38px;
  width: auto;
}
.nav-logo-text {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--white);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-link {
  padding: 8px 20px;
  font-size: 14px;
  font-weight: 500;
  color: rgba(255,255,255,0.7);
  border-radius: 6px;
  transition: all 0.3s;
  position: relative;
}
.nav-link:hover, .nav-link.active {
  color: var(--white);
  background: rgba(255,255,255,0.06);
}
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: var(--green);
  border-radius: 1px;
}
.nav-cta {
  padding: 8px 24px;
  background: var(--green);
  color: var(--white);
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  margin-left: 12px;
  transition: all 0.3s;
}
.nav-cta:hover {
  background: var(--green-dark);
  transform: translateY(-1px);
}

/* Mobile menu */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all 0.3s;
}

/* === Hero === */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  z-index: 0;
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15,28,46,0.92) 0%, rgba(15,28,46,0.7) 50%, rgba(15,28,46,0.5) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 680px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 20px;
  background: rgba(122,181,85,0.12);
  border: 1px solid rgba(122,181,85,0.25);
  font-size: 13px;
  font-weight: 500;
  color: var(--green);
  margin-bottom: 28px;
}
.hero-badge::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse-dot 2s ease infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.hero h1 {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 24px;
  letter-spacing: -1px;
}
.hero h1 .highlight {
  background: linear-gradient(135deg, var(--green), var(--blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  font-size: 18px;
  color: var(--gray-300);
  line-height: 1.8;
  margin-bottom: 40px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-stats {
  position: relative;
  z-index: 2;
  display: flex;
  gap: 48px;
  margin-top: 80px;
  padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.hero-stat-num {
  font-size: 40px;
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(135deg, var(--green), var(--blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-stat-label {
  font-size: 14px;
  color: var(--gray-300);
  margin-top: 8px;
}

/* Floating geometric accents */
.geo-accent {
  position: absolute;
  border: 1px solid rgba(122,181,85,0.15);
  border-radius: 4px;
  z-index: 1;
  animation: float 8s ease-in-out infinite;
}
.geo-1 { width: 120px; height: 120px; right: 15%; top: 20%; transform: rotate(15deg); }
.geo-2 { width: 80px; height: 80px; right: 25%; bottom: 25%; transform: rotate(-20deg); border-color: rgba(27,127,184,0.15); animation-delay: -3s; }
.geo-3 { width: 60px; height: 60px; right: 8%; top: 45%; transform: rotate(45deg); animation-delay: -5s; }
@keyframes float {
  0%, 100% { transform: translateY(0) rotate(15deg); }
  50% { transform: translateY(-20px) rotate(20deg); }
}

/* === Feature Cards === */
.features {
  padding: 120px 0;
  background: var(--navy);
  position: relative;
}
.features::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(122,181,85,0.2), transparent);
}
.features-header {
  text-align: center;
  margin-bottom: 64px;
}
.features-header .section-desc {
  margin: 0 auto;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--navy-light);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 12px;
  padding: 40px 32px;
  transition: all 0.5s var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--green), var(--blue));
  opacity: 0;
  transition: opacity 0.4s;
}
.feature-card:hover {
  transform: translateY(-6px);
  border-color: rgba(122,181,85,0.15);
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  width: 52px; height: 52px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 24px;
}
.feature-icon.green { background: rgba(122,181,85,0.12); }
.feature-icon.blue { background: rgba(27,127,184,0.12); }
.feature-card h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
}
.feature-card p {
  font-size: 14px;
  color: var(--gray-300);
  line-height: 1.7;
}

/* === Showcase / Product Preview === */
.showcase {
  padding: 120px 0;
  background: var(--navy-light);
  position: relative;
  overflow: hidden;
}
.showcase-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.showcase-img {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 40px 80px rgba(0,0,0,0.4);
  border: 1px solid rgba(255,255,255,0.06);
  position: relative;
}
.showcase-img img {
  width: 100%;
  display: block;
}
.showcase-content {
  max-width: 500px;
}
.showcase-list {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.showcase-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.showcase-item-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: rgba(122,181,85,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 18px;
}
.showcase-item-text h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}
.showcase-item-text p {
  font-size: 14px;
  color: var(--gray-300);
}

/* === Data Stats === */
.stats-section {
  padding: 100px 0;
  background: var(--navy);
  position: relative;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.stat-card {
  text-align: center;
  padding: 40px 20px;
  border-radius: 12px;
  background: var(--navy-light);
  border: 1px solid rgba(255,255,255,0.04);
  transition: all 0.4s;
}
.stat-card:hover {
  border-color: rgba(122,181,85,0.15);
  transform: translateY(-4px);
}
.stat-number {
  font-size: 48px;
  font-weight: 900;
  background: linear-gradient(135deg, var(--green), var(--blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
}
.stat-unit {
  font-size: 16px;
  font-weight: 700;
  -webkit-text-fill-color: var(--green);
}
.stat-label {
  font-size: 14px;
  color: var(--gray-300);
  margin-top: 12px;
}

/* === CTA Banner === */
.cta-banner {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--navy-light) 0%, var(--navy-mid) 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-banner::before,
.cta-banner::after {
  content: '';
  position: absolute;
  width: 400px; height: 400px;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.15;
}
.cta-banner::before { background: var(--green); top: -200px; left: -100px; }
.cta-banner::after { background: var(--blue); bottom: -200px; right: -100px; }
.cta-banner .section-title { margin-bottom: 16px; }
.cta-banner .section-desc { margin: 0 auto 40px; text-align: center; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* === Footer === */
.footer {
  padding: 60px 0 30px;
  background: var(--navy);
  border-top: 1px solid rgba(255,255,255,0.05);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.footer-brand p {
  font-size: 14px;
  color: var(--gray-300);
  margin-top: 16px;
  line-height: 1.7;
  max-width: 320px;
}
.footer-col h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 20px;
  letter-spacing: 1px;
}
.footer-col a {
  display: block;
  font-size: 14px;
  color: var(--gray-300);
  padding: 6px 0;
  transition: color 0.3s;
}
.footer-col a:hover { color: var(--green); }
.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--gray-300);
  margin-bottom: 12px;
}
.footer-contact-icon {
  font-size: 16px;
  margin-top: 2px;
  flex-shrink: 0;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  font-size: 13px;
  color: rgba(255,255,255,0.3);
}

/* === Page Headers (for inner pages) === */
.page-header {
  padding: 140px 0 80px;
  background: var(--navy-light);
  position: relative;
  overflow: hidden;
}
.page-header::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(122,181,85,0.2), transparent);
}
.page-header h1 {
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 800;
  margin-bottom: 16px;
}
.page-header .breadcrumb {
  font-size: 14px;
  color: var(--gray-300);
}
.page-header .breadcrumb a { color: var(--green); }

/* === Product Page Specific === */
.product-hero {
  padding: 160px 0 100px;
  background: var(--navy);
  position: relative;
  overflow: hidden;
}
.product-hero-inner {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 60px;
  align-items: center;
}
.product-hero-img {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 40px 80px rgba(0,0,0,0.5);
  border: 1px solid rgba(255,255,255,0.08);
}

.module-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.module-card {
  background: var(--navy-light);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 12px;
  padding: 32px 24px;
  text-align: center;
  transition: all 0.4s;
}
.module-card:hover {
  transform: translateY(-4px);
  border-color: rgba(122,181,85,0.15);
  box-shadow: 0 16px 48px rgba(0,0,0,0.25);
}
.module-icon {
  font-size: 36px;
  margin-bottom: 16px;
}
.module-card h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}
.module-card p {
  font-size: 13px;
  color: var(--gray-300);
  line-height: 1.6;
}

/* Tech stack */
.tech-flow {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 48px;
}
.tech-layer {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 28px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.06);
  background: var(--navy-light);
  transition: all 0.3s;
}
.tech-layer:hover {
  border-color: rgba(122,181,85,0.15);
  background: rgba(26,48,64,0.8);
}
.tech-layer-label {
  font-size: 13px;
  font-weight: 700;
  color: var(--green);
  min-width: 100px;
  letter-spacing: 1px;
}
.tech-layer-content {
  font-size: 14px;
  color: var(--gray-300);
}
.tech-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(27,127,184,0.1);
  border-radius: 4px;
  font-size: 13px;
  color: var(--blue);
  margin: 3px 4px;
  border: 1px solid rgba(27,127,184,0.15);
}

/* === About Page === */
.about-vision {
  padding: 120px 0;
}
.about-vision-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.about-vision-img {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 32px 64px rgba(0,0,0,0.3);
}

.brand-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.brand-card {
  background: var(--navy-light);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 12px;
  padding: 36px 24px;
  text-align: center;
  transition: all 0.4s;
  position: relative;
  overflow: hidden;
}
.brand-card:nth-child(odd) { border-top: 3px solid var(--green); }
.brand-card:nth-child(even) { border-top: 3px solid var(--blue); }
.brand-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 48px rgba(0,0,0,0.3);
}
.brand-char {
  font-size: 56px;
  font-weight: 900;
  line-height: 1;
  margin-bottom: 8px;
}
.brand-card:nth-child(odd) .brand-char { color: var(--green); }
.brand-card:nth-child(even) .brand-char { color: var(--blue); }
.brand-card h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 12px;
}
.brand-card p {
  font-size: 13px;
  color: var(--gray-300);
  line-height: 1.7;
}

/* Timeline */
.timeline {
  position: relative;
  padding: 40px 0;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0; bottom: 0;
  width: 2px;
  background: rgba(122,181,85,0.2);
  transform: translateX(-50%);
}
.timeline-item {
  display: flex;
  margin-bottom: 40px;
  position: relative;
}
.timeline-item:nth-child(odd) { padding-right: calc(50% + 40px); }
.timeline-item:nth-child(even) { padding-left: calc(50% + 40px); }
.timeline-dot {
  position: absolute;
  left: 50%;
  top: 20px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--green);
  border: 3px solid var(--navy);
  transform: translateX(-50%);
  z-index: 2;
}
.timeline-content {
  background: var(--navy-light);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 10px;
  padding: 24px;
}
.timeline-year {
  font-size: 13px;
  font-weight: 700;
  color: var(--green);
  letter-spacing: 1px;
  margin-bottom: 8px;
}
.timeline-content h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}
.timeline-content p {
  font-size: 14px;
  color: var(--gray-300);
}

/* === Contact Page === */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: start;
}
.contact-info-card {
  background: var(--navy-light);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 12px;
  padding: 40px;
}
.contact-info-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 28px;
}
.contact-info-item:last-child { margin-bottom: 0; }
.contact-info-icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  background: rgba(122,181,85,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}
.contact-info-item h4 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 4px;
}
.contact-info-item p {
  font-size: 14px;
  color: var(--gray-300);
}

.contact-form {
  background: var(--navy-light);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 12px;
  padding: 40px;
}
.contact-form h3 {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 8px;
}
.contact-form > p {
  font-size: 14px;
  color: var(--gray-300);
  margin-bottom: 32px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--gray-300);
  margin-bottom: 8px;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  background: var(--navy);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  color: var(--white);
  font-size: 14px;
  font-family: var(--font-cn);
  transition: all 0.3s;
  outline: none;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px var(--green-glow);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-group select option { background: var(--navy); }
.form-submit {
  width: 100%;
  padding: 14px;
  background: var(--green);
  color: var(--white);
  border: none;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font-cn);
  cursor: pointer;
  transition: all 0.3s;
}
.form-submit:hover {
  background: var(--green-dark);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px var(--green-glow);
}

/* === Scroll Reveal === */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s var(--transition);
}
.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; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* === Responsive === */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .module-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .brand-cards { grid-template-columns: repeat(2, 1fr); }
  .showcase-inner,
  .product-hero-inner,
  .product-section-grid,
  .about-vision-grid,
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .dept-grid,
  .cases-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .container { padding: 0 20px; }
  .nav { padding: 0 20px; }
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px; left: 0; right: 0;
    background: rgba(15,28,46,0.96);
    backdrop-filter: blur(20px);
    padding: 20px;
    gap: 4px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
  }
  .features { padding: 80px 0; }
  .showcase { padding: 80px 0; }
  .features-header { margin-bottom: 40px; }
  .section-title { font-size: clamp(22px, 5vw, 32px); }
  .section-desc { font-size: 15px; }
  .features-grid { grid-template-columns: 1fr; }
  .module-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .brand-cards { grid-template-columns: 1fr 1fr; }
  .hero-stats { gap: 24px; flex-wrap: wrap; }
  .hero h1 { font-size: clamp(28px, 7vw, 40px); }
  .hero-desc { font-size: 15px; }
  .product-hero { padding: 120px 0 60px; }
  .product-section-grid { grid-template-columns: 1fr !important; gap: 32px !important; }
  .showcase-inner { grid-template-columns: 1fr; gap: 40px; }
  .showcase-content { max-width: 100%; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .form-row { grid-template-columns: 1fr; }
  .timeline::before { left: 20px; }
  .timeline-item:nth-child(odd),
  .timeline-item:nth-child(even) { padding-left: 52px; padding-right: 0; }
  .timeline-dot { left: 20px; }
  .dept-grid,
  .cases-grid { grid-template-columns: 1fr; }
  .cta-banner { padding: 60px 0; }
  .tech-layer { flex-direction: column; align-items: flex-start; gap: 8px; }
  .tech-layer-label { min-width: auto; }
}
@media (max-width: 480px) {
  .module-grid { grid-template-columns: 1fr; }
  .brand-cards { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .hero-stats { gap: 16px; }
  .hero-stat-num { font-size: 28px; }
  .btn { padding: 12px 24px; font-size: 14px; }
}