* { margin:0; padding:0; box-sizing:border-box; }
:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #60a5fa;
  --dark: #1a1a2e;
  --dark-blue: #16213e;
  --accent: #0f3460;
  --text: #334155;
  --text-light: #64748b;
  --bg: #f8fafc;
  --white: #ffffff;
  --green: #10b981;
  --amber: #f59e0b;
  --purple: #8b5cf6;
  --cyan: #06b6d4;
  --pink: #ec4899;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 30px rgba(0,0,0,0.1);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  background: var(--white);
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

/* ========== Navbar ========== */
.navbar {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: var(--transition);
}
.navbar.scrolled {
  box-shadow: 0 2px 20px rgba(0,0,0,0.1);
}
.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  max-width: 1280px;
  margin: 0 auto;
  height: 72px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 18px;
  color: var(--dark);
  transition: var(--transition);
}
.logo:hover { color: var(--primary); }
.logo img { height: 50px; width: auto; transition: var(--transition); }
.logo:hover img { transform: scale(1.05); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}
.nav-links a {
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  transition: var(--transition);
  position: relative;
}
.nav-links a:hover, .nav-links a.active {
  color: var(--primary);
  background: rgba(37,99,235,0.06);
}
.nav-links .nav-cta {
  background: var(--primary);
  color: var(--white) !important;
  padding: 8px 20px;
  font-weight: 600;
}
.nav-links .nav-cta:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(37,99,235,0.3);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  transition: var(--transition);
  background: none;
  border: none;
  z-index: 1001;
}
.hamburger:hover { background: rgba(0,0,0,0.05); }
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile menu */
.mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 999;
  opacity: 0;
  transition: opacity 0.3s;
}
.mobile-overlay.show { display: block; opacity: 1; }
.mobile-menu {
  display: none;
  position: fixed;
  top: 0; right: 0;
  width: 280px;
  height: 100vh;
  background: var(--white);
  z-index: 1000;
  padding: 80px 24px 24px;
  transform: translateX(100%);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: -4px 0 20px rgba(0,0,0,0.1);
  overflow-y: auto;
}
.mobile-menu.show { transform: translateX(0); }
.mobile-menu a {
  display: block;
  padding: 14px 16px;
  font-size: 16px;
  font-weight: 500;
  color: var(--text);
  border-radius: 8px;
  transition: var(--transition);
}
.mobile-menu a:hover { background: rgba(37,99,235,0.06); color: var(--primary); }
.mobile-menu .mobile-cta {
  display: block;
  text-align: center;
  margin-top: 16px;
  padding: 14px;
  background: var(--primary);
  color: var(--white);
  border-radius: 10px;
  font-weight: 600;
}

/* ========== Container ========== */
.container { max-width: 1280px; margin: 0 auto; padding: 0 32px; }

/* ========== Section common ========== */
section { padding: 100px 0; }
.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  background: rgba(37,99,235,0.08);
  color: var(--primary);
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}
.section-title {
  text-align: center;
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 16px;
  color: var(--dark);
  letter-spacing: -0.02em;
  line-height: 1.3;
}
.section-subtitle {
  text-align: center;
  color: var(--text-light);
  font-size: 17px;
  max-width: 640px;
  margin: 0 auto 56px;
  line-height: 1.7;
}

/* Animations */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}
.fade-up-delay-1 { transition-delay: 0.1s; }
.fade-up-delay-2 { transition-delay: 0.2s; }
.fade-up-delay-3 { transition-delay: 0.3s; }
.fade-up-delay-4 { transition-delay: 0.4s; }
.fade-up-delay-5 { transition-delay: 0.5s; }

/* ========== Hero ========== */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-blue) 50%, var(--accent) 100%);
  color: var(--white);
  min-height: 92vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(37,99,235,0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(96,165,250,0.1) 0%, transparent 40%),
    radial-gradient(ellipse at 60% 80%, rgba(15,52,96,0.2) 0%, transparent 50%);
}
.hero-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}
.hero-particles span {
  position: absolute;
  width: 4px;
  height: 4px;
  background: rgba(96,165,250,0.4);
  border-radius: 50%;
  animation: float-particle linear infinite;
}
@keyframes float-particle {
  0% { transform: translateY(100vh) scale(0); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translateY(-10vh) scale(1); opacity: 0; }
}
.hero .container {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 80px 32px;
}
.hero h1 {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}
.hero h1 span { color: var(--primary-light); }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 50px;
  font-size: 14px;
  color: rgba(255,255,255,0.8);
  margin-bottom: 24px;
  backdrop-filter: blur(8px);
}
.hero-badge .dot {
  width: 8px; height: 8px;
  background: var(--green);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.hero p {
  font-size: clamp(16px, 2vw, 18px);
  color: rgba(255,255,255,0.7);
  max-width: 720px;
  margin: 0 auto 40px;
  line-height: 1.8;
}
.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 15px;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  font-family: inherit;
}
.btn-primary {
  background: var(--primary);
  color: var(--white);
  box-shadow: 0 4px 14px rgba(37,99,235,0.3);
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37,99,235,0.4);
}
.btn-outline {
  border: 2px solid rgba(255,255,255,0.25);
  color: var(--white);
  background: rgba(255,255,255,0.05);
}
.btn-outline:hover {
  border-color: rgba(255,255,255,0.5);
  background: rgba(255,255,255,0.1);
  transform: translateY(-2px);
}
.btn-dark {
  background: var(--dark);
  color: var(--white);
}
.btn-dark:hover {
  background: var(--dark-blue);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}
/* Hero stats */
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-top: 60px;
  padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,0.1);
  flex-wrap: wrap;
}
.hero-stat { text-align: center; }
.hero-stat .num {
  font-size: 36px;
  font-weight: 800;
  color: var(--primary-light);
  display: block;
}
.hero-stat .label {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  margin-top: 4px;
}

/* ========== About ========== */
.about-section { background: var(--white); }
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 64px;
  align-items: start;
}
.about-text h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 16px;
}
.about-text p {
  font-size: 15px;
  color: var(--text);
  line-height: 1.8;
  margin-bottom: 16px;
}
.about-text strong { color: var(--dark); }

/* Stats bar */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 32px;
}
.stat-item {
  text-align: center;
  padding: 20px 12px;
  background: var(--bg);
  border-radius: var(--radius);
  transition: var(--transition);
}
.stat-item:hover {
  background: rgba(37,99,235,0.06);
  transform: translateY(-2px);
}
.stat-item .stat-num {
  font-size: 32px;
  font-weight: 800;
  color: var(--primary);
  display: block;
}
.stat-item .stat-label {
  font-size: 13px;
  color: var(--text-light);
  margin-top: 4px;
}

/* About info panel */
.about-info-panel {
  background: var(--bg);
  border-radius: 16px;
  padding: 32px;
}
.about-info-panel h4 {
  font-size: 18px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 2px solid rgba(37,99,235,0.1);
}
.about-info-item {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 12px;
  padding: 12px 0;
  font-size: 14px;
  border-bottom: 1px solid rgba(0,0,0,0.04);
}
.about-info-item:last-child { border-bottom: none; }
.about-info-item .label {
  font-weight: 600;
  color: var(--dark);
  font-size: 13px;
  padding-top: 2px;
}
.about-info-item .value { color: var(--text); line-height: 1.5; }

/* ========== Services ========== */
.services-section { background: var(--bg); }
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--white);
  padding: 36px 28px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid transparent;
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--primary);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}
.service-card:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(37,99,235,0.1);
  transform: translateY(-4px);
}
.service-card:hover::before { transform: scaleX(1); }
.service-icon {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin-bottom: 20px;
  transition: var(--transition);
}
.service-card:hover .service-icon { transform: scale(1.1); }
.service-icon.blue { background: rgba(37,99,235,0.1); color: var(--primary); }
.service-icon.amber { background: rgba(245,158,11,0.1); color: var(--amber); }
.service-icon.green { background: rgba(16,185,129,0.1); color: var(--green); }
.service-icon.purple { background: rgba(139,92,246,0.1); color: var(--purple); }
.service-icon.cyan { background: rgba(6,182,212,0.1); color: var(--cyan); }
.service-icon.pink { background: rgba(236,72,153,0.1); color: var(--pink); }
.service-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--dark);
}
.service-card p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
}

/* ========== Equipment ========== */
.equipment-section { background: var(--white); }
.equipment-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.equip-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid rgba(0,0,0,0.04);
  transition: var(--transition);
  cursor: pointer;
}
.equip-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
  border-color: rgba(37,99,235,0.15);
}
.equip-card .equip-image {
  background: linear-gradient(135deg, #f0f4ff 0%, #e8f0fe 100%);
  padding: 0;
  text-align: center;
  position: relative;
  overflow: hidden;
  height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.equip-card .equip-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.equip-card .equip-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(37,99,235,0.03) 0%, transparent 50%);
  pointer-events: none;
}
.equip-card:hover .equip-image svg rect,
.equip-card:hover .equip-image svg circle,
.equip-card:hover .equip-image svg line {
  filter: brightness(1.1);
}
.equip-card h3 {
  font-size: 17px;
  font-weight: 700;
  padding: 16px 24px 8px;
  color: var(--dark);
}
.equip-card p {
  font-size: 13px;
  color: var(--text-light);
  padding: 0 24px 16px;
  line-height: 1.7;
}
.equip-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 24px;
  border-top: 1px solid rgba(0,0,0,0.04);
  font-size: 14px;
  color: var(--primary);
  font-weight: 600;
  transition: var(--transition);
}
.equip-card:hover .equip-link {
  background: rgba(37,99,235,0.04);
}
.equip-link:hover { gap: 10px; }

/* ========== Advantages ========== */
.advantages-section {
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-blue) 50%, var(--accent) 100%);
  color: var(--white);
  position: relative;
  overflow: hidden;
}
.advantages-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 30% 50%, rgba(37,99,235,0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 30%, rgba(96,165,250,0.08) 0%, transparent 40%);
}
.advantages-section .container { position: relative; z-index: 1; }
.advantages-section .section-badge { background: rgba(255,255,255,0.1); color: rgba(255,255,255,0.9); }
.advantages-section .section-title { color: var(--white); }
.advantages-section .section-subtitle { color: rgba(255,255,255,0.6); }
.adv-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.adv-card {
  padding: 40px 28px;
  border-radius: var(--radius);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  backdrop-filter: blur(8px);
  text-align: center;
  transition: var(--transition);
}
.adv-card:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-4px);
  border-color: rgba(255,255,255,0.15);
}
.adv-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: rgba(37,99,235,0.2);
  color: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  font-weight: 800;
  margin: 0 auto 20px;
}
.adv-card h4 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--white);
}
.adv-card p {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  line-height: 1.7;
}

/* ========== Clients ========== */
.clients-section { background: var(--bg); }
.client-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.client-group {
  background: var(--white);
  padding: 24px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.client-group:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.client-group h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--dark);
  display: flex;
  align-items: center;
  gap: 8px;
}
.client-group h4::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 18px;
  background: var(--primary);
  border-radius: 2px;
}
.client-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.client-tags span {
  padding: 5px 14px;
  background: var(--bg);
  border-radius: 6px;
  font-size: 13px;
  color: var(--text);
  transition: var(--transition);
}
.client-tags span:hover {
  background: rgba(37,99,235,0.08);
  color: var(--primary);
}

/* ========== CTA ========== */
.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: var(--white);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 80%, rgba(255,255,255,0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(255,255,255,0.05) 0%, transparent 40%);
}
.cta-section .container { position: relative; z-index: 1; }
.cta-section h2 {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.cta-section p {
  font-size: 17px;
  opacity: 0.9;
  margin-bottom: 36px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
.cta-section .btn {
  background: var(--white);
  color: var(--primary);
  font-weight: 700;
  box-shadow: 0 4px 14px rgba(0,0,0,0.15);
}
.cta-section .btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

/* Contact info strip */
.contact-strip {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-top: 48px;
  flex-wrap: wrap;
}
.contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  opacity: 0.9;
}
.contact-item .icon {
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.15);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

/* ========== Footer ========== */
.footer { background: var(--dark); color: rgba(255,255,255,0.6); padding: 64px 0 0; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer h4 {
  color: var(--white);
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 20px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 16px;
  color: rgba(255,255,255,0.5);
}
.footer-contact p {
  font-size: 14px;
  line-height: 2;
  color: rgba(255,255,255,0.5);
}
.footer-contact a { color: rgba(255,255,255,0.5); transition: var(--transition); }
.footer-contact a:hover { color: var(--primary-light); }
.footer-links a {
  display: block;
  font-size: 14px;
  color: rgba(255,255,255,0.5);
  line-height: 2.2;
  transition: var(--transition);
}
.footer-links a:hover { color: var(--white); padding-left: 4px; }
.footer-social {
  display: flex;
  gap: 10px;
  margin-top: 16px;
}
.footer-social a {
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.08);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.6);
  font-size: 16px;
  transition: var(--transition);
}
.footer-social a:hover {
  background: var(--primary);
  color: var(--white);
  transform: translateY(-2px);
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 24px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.35);
}
.footer-bottom a { color: rgba(255,255,255,0.5); transition: var(--transition); }
.footer-bottom a:hover { color: var(--primary-light); }

/* ========== Back to top ========== */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  background: var(--primary);
  color: var(--white);
  border: none;
  border-radius: 12px;
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
  box-shadow: 0 4px 14px rgba(37,99,235,0.3);
  z-index: 999;
}
.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  background: var(--primary-dark);
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(37,99,235,0.4);
}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .equipment-grid { grid-template-columns: repeat(2, 1fr); }
  .adv-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  section { padding: 72px 0; }
  .container { padding: 0 20px; }
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .mobile-menu, .mobile-overlay { display: block; }
  .hero { min-height: 80vh; }
  .hero h1 { font-size: 28px; }
  .hero-stats { gap: 24px; }
  .hero-stat .num { font-size: 28px; }
  .section-title { font-size: 28px; }
  .section-subtitle { font-size: 15px; }
  .service-grid { grid-template-columns: 1fr; }
  .equipment-grid { grid-template-columns: 1fr; }
  .adv-grid { grid-template-columns: 1fr; }
  .client-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .hero-actions { flex-direction: column; align-items: center; }
  .btn { width: 100%; max-width: 280px; justify-content: center; }
  .about-info-item { grid-template-columns: 1fr; gap: 2px; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
  .contact-strip { flex-direction: column; align-items: center; gap: 16px; }
}
@media (max-width: 480px) {
  .hero h1 { font-size: 24px; }
  .hero-stats { flex-direction: column; gap: 16px; }
  .stats-bar { grid-template-columns: 1fr 1fr; gap: 10px; }
  .stat-item .stat-num { font-size: 24px; }
}