/* ========================================
   官网样式 - 管道检测清理机器人
   工业风，专业简洁
   ======================================== */

/* === CSS Variables === */
:root {
  --primary: #9a9fa8;
  --primary-light: #b0b5bd;
  --primary-dark: #7a7f88;
  --primary-subtle: rgba(154, 159, 168, 0.08);
  --accent: #6e737b;
  --green: #1db954;
  --green-light: #26d965;
  --green-dark: #169c45;
  --green-subtle: rgba(29, 185, 84, 0.08);
  --bg-dark: #0e1014;
  --bg-card: rgba(22, 24, 29, 0.92);
  --bg-card-hover: rgba(28, 30, 36, 0.95);
  --bg-section: #111318;
  --text-primary: #eeeff2;
  --text-secondary: #a0a4ac;
  --text-muted: #6e727a;
  --border: rgba(255, 255, 255, 0.07);
  --border-light: rgba(255, 255, 255, 0.11);
  --border-accent: rgba(255, 255, 255, 0.13);
  --border-green: rgba(29, 185, 84, 0.25);
  --gradient-hero: linear-gradient(180deg, #0e1014 0%, #14171d 30%, #181b22 60%, #111318 100%);
  --gradient-steel: linear-gradient(135deg, #4a4e57, #6e737b);
  --gradient-green: linear-gradient(135deg, #169c45, #1db954);
  --gradient-card: linear-gradient(180deg, rgba(255,255,255,0.02) 0%, rgba(255,255,255,0) 100%);
  --radius: 4px;
  --transition: 0.25s ease;
}

/* === Reset & Base === */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

/* === Container === */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
}

/* ========================================
   Navigation
   ======================================== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: all var(--transition);
}

.nav.scrolled {
  background: rgba(14, 16, 20, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.5px;
}

.nav-logo-icon {
  width: 34px;
  height: 34px;
  background: rgba(154, 159, 168, 0.1);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(154, 159, 168, 0.15);
  overflow: hidden;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.88rem;
  font-weight: 500;
  position: relative;
  padding: 6px 0;
  transition: color var(--transition);
  letter-spacing: 0.3px;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--green);
  transition: width var(--transition);
}

.nav-links a:hover { color: var(--text-primary); }
.nav-links a:hover::after { width: 100%; }

.nav-cta {
  background: var(--green-subtle);
  color: var(--green-light) !important;
  padding: 9px 22px !important;
  border-radius: 4px;
  font-weight: 600 !important;
  transition: all var(--transition) !important;
  border: 1px solid var(--border-green);
  font-size: 0.88rem !important;
}

.nav-cta:hover {
  background: var(--gradient-green);
  color: #fff !important;
  border-color: var(--green);
}

.nav-cta::after { display: none !important; }

/* Mobile Menu */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: 1001;
  padding: 4px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition);
}

.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ========================================
   Hero Section
   ======================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--gradient-hero);
}

/* Hero Canvas */
#heroCanvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* Grid overlay */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 60px 60px;
  z-index: 1;
}

/* Subtle ambient light */
.hero::after {
  content: '';
  position: absolute;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(154, 159, 168, 0.03) 0%, transparent 70%);
  top: 20%;
  right: -100px;
  z-index: 0;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
}

/* Hero reveal elements always visible on load */
.hero-content .reveal {
  opacity: 1;
  transform: translateY(0);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 18px;
  border: 1px solid var(--border-accent);
  border-radius: 3px;
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
  background: var(--primary-subtle);
  letter-spacing: 0.8px;
}

.hero-badge-dot {
  width: 6px;
  height: 6px;
  background: var(--green);
  border-radius: 50%;
  animation: dotPulse 2s ease-in-out infinite;
}

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

.hero h1 {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 24px;
  letter-spacing: -1px;
}

.hero h1 .highlight {
  background: var(--gradient-green);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
  max-width: 520px;
  line-height: 1.8;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 3px;
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  white-space: nowrap;
  letter-spacing: 0.3px;
}

.btn-primary {
  background: var(--gradient-green);
  color: #fff;
}

.btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(29, 185, 84, 0.2);
}

.btn-outline {
  background: transparent;
  color: var(--green-light);
  border: 1px solid var(--border-green);
}

.btn-outline:hover {
  border-color: var(--green);
  background: var(--green-subtle);
  color: #fff;
}

/* Scroll indicator */
.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.hero-scroll span {
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 2px;
}

.hero-scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--text-muted), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0%, 100% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ========================================
   Section Common
   ======================================== */
.section {
  padding: 120px 0;
  position: relative;
  overflow: hidden;
}

.section-dark {
  background: linear-gradient(180deg, #111318 0%, #15181f 50%, #111318 100%);
}

.section-header {
  text-align: center;
  margin-bottom: 72px;
  position: relative;
  padding-bottom: 32px;
}

.section-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 2px;
  background: var(--green);
  border-radius: 1px;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.72rem;
  color: var(--green-light);
  font-weight: 600;
  letter-spacing: 1.5px;
  margin-bottom: 16px;
  padding: 5px 12px;
  border: 1px solid var(--border-green);
  border-radius: 3px;
  background: var(--green-subtle);
}

.section-label::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--green);
  border-radius: 50%;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ========================================
   About Section
   ======================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-image-wrap {
  position: relative;
}

.about-image {
  width: 100%;
  aspect-ratio: 4/3;
  background: linear-gradient(180deg, rgba(154, 159, 168, 0.04) 0%, transparent 100%);
  border-radius: var(--radius);
  border: 1px solid var(--border-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.about-illustration {
  width: 100%;
  height: 100%;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 40px;
}

.stat-item {
  text-align: center;
  padding: 24px 16px;
  background: linear-gradient(180deg, rgba(255,255,255,0.015) 0%, transparent 100%);
  border: 1px solid var(--border);
  border-top: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  transition: border-color var(--transition);
}

.stat-item:hover {
  border-color: var(--border-accent);
}

.stat-number {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--green);
  font-family: 'Courier New', monospace;
  letter-spacing: -1px;
}

.stat-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 6px;
  letter-spacing: 0.3px;
}

.about-text h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.8;
}

/* ========================================
   Products Section
   ======================================== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.product-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.015) 0%, rgba(22,24,29,0.92) 100%);
  border: 1px solid var(--border);
  border-top: 1px solid rgba(255,255,255,0.09);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.product-card:hover {
  border-color: var(--border-accent);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

.product-icon {
  width: 48px;
  height: 48px;
  background: var(--primary-subtle);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  transition: background var(--transition);
  border: 1px solid var(--border-accent);
}

.product-card:hover .product-icon {
  background: rgba(154, 159, 168, 0.12);
}

.product-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.product-card p {
  color: var(--text-secondary);
  font-size: 0.93rem;
  line-height: 1.7;
  margin-bottom: 20px;
}

.product-link {
  display: inline-flex;
  align-items: center;
  color: var(--green-light);
  font-weight: 600;
  font-size: 0.84rem;
  transition: color var(--transition);
  letter-spacing: 0.3px;
}

.product-link:hover {
  color: var(--green);
}

/* SVG icon styles */
.icon-svg {
  flex-shrink: 0;
}

.icon-svg-sm { width: 40px; height: 40px; }
.icon-svg-md { width: 48px; height: 48px; }
.icon-svg-lg { width: 64px; height: 64px; }

.product-icon .icon-svg { width: 28px; height: 28px; }
.tech-icon .icon-svg { width: 28px; height: 28px; }
.advantage-icon-wrap .icon-svg { width: 32px; height: 32px; }
.contact-item-icon .icon-svg { width: 24px; height: 24px; }

/* ========================================
   Solutions Section
   ======================================== */
.solutions-tabs {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.solution-tab {
  padding: 10px 22px;
  border-radius: var(--radius);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  border: 1px solid transparent;
  background: transparent;
  transition: all var(--transition);
  letter-spacing: 0.3px;
}

.solution-tab:hover { color: var(--text-primary); }

.solution-tab.active {
  background: var(--green-subtle);
  color: var(--green-light);
  border: 1px solid var(--border-green);
}

.solutions-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.solution-visual {
  aspect-ratio: 4/3;
  background: linear-gradient(180deg, rgba(154, 159, 168, 0.04) 0%, transparent 100%);
  border-radius: var(--radius);
  border: 1px solid var(--border-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.solution-info h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.solution-info p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 24px;
}

.solution-features {
  display: grid;
  gap: 12px;
  margin-bottom: 28px;
}

.solution-feature {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.solution-feature::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--primary);
  flex-shrink: 0;
}

/* ========================================
   Advantages Section
   ======================================== */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.advantage-card {
  text-align: center;
  padding: 36px 20px;
  background: linear-gradient(180deg, rgba(255,255,255,0.012) 0%, transparent 100%);
  border: 1px solid var(--border);
  border-top: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--radius);
  transition: all var(--transition);
}

.advantage-card:hover {
  border-color: var(--border-accent);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

.advantage-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  background: var(--primary-subtle);
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-accent);
}

.advantage-card h4 {
  font-size: 1.02rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.advantage-card p {
  font-size: 0.84rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ========================================
   Technology Section
   ======================================== */
.tech-showcase {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.tech-item {
  background: linear-gradient(180deg, rgba(255,255,255,0.012) 0%, transparent 100%);
  border: 1px solid var(--border);
  border-top: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  gap: 24px;
  transition: all var(--transition);
}

.tech-item:hover {
  border-color: var(--border-accent);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

.tech-icon {
  width: 44px;
  height: 44px;
  background: var(--primary-subtle);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 1px solid var(--border-accent);
}

.tech-text h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.tech-text p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ========================================
   Contact Section
   ======================================== */
.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: start;
}

.contact-info h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.contact-info > p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 32px;
}

.contact-items {
  display: grid;
  gap: 12px;
  margin-bottom: 32px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  background: linear-gradient(180deg, rgba(255,255,255,0.012) 0%, transparent 100%);
  border: 1px solid var(--border);
  border-top: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--radius);
  transition: border-color var(--transition);
}

.contact-item:hover {
  border-color: var(--border-accent);
}

.contact-item-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  background: var(--primary-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 1px solid var(--border-accent);
}

.contact-item-text strong {
  display: block;
  font-size: 0.88rem;
}

.contact-item-text span {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* Form */
.contact-form {
  background: linear-gradient(180deg, rgba(255,255,255,0.015) 0%, rgba(22,24,29,0.92) 100%);
  border: 1px solid var(--border);
  border-top: 1px solid rgba(255,255,255,0.09);
  border-radius: var(--radius);
  padding: 36px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--text-secondary);
  letter-spacing: 0.3px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 0.93rem;
  font-family: inherit;
  transition: border-color var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--primary);
  background: rgba(0, 0, 0, 0.35);
}

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

.form-submit {
  width: 100%;
  padding: 14px 32px;
  background: var(--gradient-green);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-size: 0.93rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  letter-spacing: 0.3px;
}

.form-submit:hover {
  opacity: 0.9;
  box-shadow: 0 4px 20px rgba(29, 185, 84, 0.2);
}

/* ========================================
   Footer
   ======================================== */
.footer {
  background: var(--bg-section);
  border-top: 1px solid var(--border);
  padding: 60px 0 30px;
  position: relative;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 40px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.7;
  margin-top: 16px;
}

.footer-col h4 {
  font-size: 0.93rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.footer-col ul {
  display: grid;
  gap: 10px;
}

.footer-col a {
  color: var(--text-muted);
  font-size: 0.88rem;
  transition: color var(--transition);
}

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

.footer-bottom {
  padding-top: 30px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.84rem;
  color: var(--text-muted);
}

/* ========================================
   Scroll Animations (Intersection Observer)
   ======================================== */
.reveal {
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: opacity, transform;
}

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

.reveal.hidden {
  opacity: 0;
  transform: translateY(30px);
}

.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) {
  .about-grid,
  .solutions-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .advantages-grid { grid-template-columns: repeat(2, 1fr); }
  .tech-showcase { grid-template-columns: 1fr; }
  .contact-wrapper { grid-template-columns: 1fr; gap: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .hero h1 { font-size: 2.8rem; }
}

@media (max-width: 768px) {
  .container, .nav-inner { padding: 0 20px; }
  .nav-links { display: none; }
  .nav-links.active {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(14, 16, 20, 0.98);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    justify-content: center;
    gap: 32px;
    font-size: 1.2rem;
    z-index: 999;
  }
  .nav-toggle { display: flex; }
  .hero h1 { font-size: 2.2rem; }
  .hero-desc { font-size: 1rem; }
  .hero-buttons { flex-direction: column; }
  .products-grid { grid-template-columns: 1fr; }
  .advantages-grid { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: repeat(3, 1fr); gap: 8px; }
  .stat-number { font-size: 1.4rem; }
  .section { padding: 80px 0; }
  .section-title { font-size: 1.8rem; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
}