/* ========================================
   可当机器人 - 官网样式
   ======================================== */

/* --- CSS Variables --- */
:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #3b82f6;
  --accent: #06b6d4;
  --accent-light: #22d3ee;
  --bg-dark: #0a0e1a;
  --bg-section: #f8fafc;
  --bg-card: #ffffff;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --text-white: #ffffff;
  --border: #e2e8f0;
  --border-light: #f1f5f9;
  --gradient-primary: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%);
  --gradient-dark: linear-gradient(135deg, #0a0e1a 0%, #1e293b 100%);
  --gradient-hero: linear-gradient(160deg, #0a0e1a 0%, #0f172a 40%, #1a1f3a 70%, #0a0e1a 100%);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
  --shadow-xl: 0 16px 48px rgba(0,0,0,0.16);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-family);
  color: var(--text-primary);
  background: var(--bg-card);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

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

/* --- Navbar --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
  background: transparent;
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--border);
  padding: 10px 0;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.2rem;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: var(--gradient-primary);
  color: white;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 1.1rem;
}

.navbar:not(.scrolled) .logo-text {
  color: var(--text-white);
}

.navbar.scrolled .logo-text {
  color: var(--text-primary);
}

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

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  position: relative;
  padding: 4px 0;
}

.navbar:not(.scrolled) .nav-link {
  color: rgba(255, 255, 255, 0.8);
}

.navbar:not(.scrolled) .nav-link:hover,
.navbar:not(.scrolled) .nav-link.active {
  color: var(--text-white);
}

.navbar.scrolled .nav-link {
  color: var(--text-secondary);
}

.navbar.scrolled .nav-link:hover,
.navbar.scrolled .nav-link.active {
  color: var(--primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: var(--transition);
  border-radius: 1px;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.btn-contact {
  font-size: 0.85rem;
  font-weight: 500;
  padding: 8px 20px;
  border-radius: 100px;
  border: 1.5px solid rgba(255, 255, 255, 0.3);
  color: var(--text-white);
  transition: var(--transition);
}

.btn-contact:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.6);
}

.navbar.scrolled .btn-contact {
  border-color: var(--primary);
  color: var(--primary);
}

.navbar.scrolled .btn-contact:hover {
  background: var(--primary);
  color: white;
}

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

.mobile-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text-white);
  border-radius: 2px;
  transition: var(--transition);
}

.navbar.scrolled .mobile-toggle span {
  background: var(--text-primary);
}

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-hero);
  overflow: hidden;
  padding: 120px 0 80px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.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;
}

.hero-particles {
  position: absolute;
  inset: 0;
}

.hero-content {
  position: relative;
  text-align: center;
  z-index: 2;
}

.hero-badge {
  display: inline-block;
  padding: 6px 20px;
  background: rgba(37, 99, 235, 0.15);
  border: 1px solid rgba(37, 99, 235, 0.3);
  border-radius: 100px;
  color: var(--accent-light);
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 28px;
  letter-spacing: 0.5px;
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 900;
  color: var(--text-white);
  line-height: 1.25;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.8;
  margin-bottom: 40px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 64px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: 100px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 20px rgba(37, 99, 235, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(37, 99, 235, 0.5);
}

.btn-outline {
  background: transparent;
  color: rgba(255, 255, 255, 0.9);
  border: 1.5px solid rgba(255, 255, 255, 0.25);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.5);
  transform: translateY(-2px);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  max-width: 800px;
  margin: 0 auto;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 900;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.stat-suffix {
  font-size: 1.2rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  display: block;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.4);
  margin-top: 4px;
}

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.3);
  font-size: 0.75rem;
  z-index: 2;
}

.scroll-arrow {
  width: 20px;
  height: 20px;
  border-right: 2px solid rgba(255, 255, 255, 0.3);
  border-bottom: 2px solid rgba(255, 255, 255, 0.3);
  transform: rotate(45deg);
  animation: scrollBounce 2s infinite;
}

@keyframes scrollBounce {
  0%, 100% { transform: rotate(45deg) translateY(0); }
  50% { transform: rotate(45deg) translateY(6px); }
}

/* --- Section Common --- */
.section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag {
  display: inline-block;
  padding: 4px 16px;
  background: rgba(37, 99, 235, 0.08);
  color: var(--primary);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 16px;
  letter-spacing: 1px;
}

.section-title {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.section-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.8;
}

/* --- Services --- */
.services {
  background: var(--bg-section);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 40px;
  border: 1px solid var(--border-light);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: var(--transition);
}

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

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  width: 56px;
  height: 56px;
  background: rgba(37, 99, 235, 0.08);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--primary);
}

.service-icon svg {
  width: 32px;
  height: 32px;
}

.service-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.service-card > p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
}

.service-features {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.service-features li {
  font-size: 0.82rem;
  color: var(--text-secondary);
  padding-left: 16px;
  position: relative;
}

.service-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
}

/* --- Scenarios --- */
.scenarios-showcase {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border);
  overflow: hidden;
}

.scenario-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
}

.scenario-tab {
  flex: 1;
  padding: 20px 16px;
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
  position: relative;
  white-space: nowrap;
  font-family: var(--font-family);
}

.scenario-tab::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: var(--transition);
}

.scenario-tab:hover {
  color: var(--primary);
  background: rgba(37, 99, 235, 0.03);
}

.scenario-tab.active {
  color: var(--primary);
  font-weight: 600;
}

.scenario-tab.active::after {
  transform: scaleX(1);
}

.tab-icon {
  font-size: 1.3rem;
}

.scenario-content {
  padding: 48px;
}

.scenario-panel {
  display: none;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.scenario-panel.active {
  display: grid;
}

.scenario-info h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.scenario-info > p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 24px;
}

.scenario-tasks {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
}

.task-tag {
  padding: 6px 16px;
  background: rgba(37, 99, 235, 0.06);
  color: var(--primary);
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 500;
}

.scenario-metrics {
  display: flex;
  gap: 32px;
}

.metric {
  text-align: center;
}

.metric-value {
  display: block;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 4px;
}

.metric-label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.scenario-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.visual-placeholder {
  width: 100%;
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.05) 0%, rgba(6, 182, 212, 0.05) 100%);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.visual-icon {
  font-size: 4rem;
  opacity: 0.6;
}

.visual-label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* --- Technology --- */
.technology {
  background: var(--bg-section);
}

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

.tech-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 36px;
  border: 1px solid var(--border-light);
  transition: var(--transition);
  position: relative;
}

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

.tech-number {
  font-size: 2.5rem;
  font-weight: 900;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.3;
  margin-bottom: 16px;
  line-height: 1;
}

.tech-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.tech-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* --- Advantages --- */
.advantages-layout {
  max-width: 800px;
  margin: 0 auto;
}

.advantage-item {
  display: flex;
  gap: 24px;
  padding: 32px;
  border-radius: var(--radius-lg);
  transition: var(--transition);
  margin-bottom: 16px;
}

.advantage-item:hover {
  background: var(--bg-section);
}

.advantage-icon {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  background: rgba(37, 99, 235, 0.08);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}

.advantage-icon svg {
  width: 28px;
  height: 28px;
}

.advantage-text h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.advantage-text p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* --- Process --- */
.process {
  background: var(--bg-section);
}

.process-timeline {
  max-width: 700px;
  margin: 0 auto;
  position: relative;
}

.process-step {
  display: flex;
  gap: 32px;
  margin-bottom: 0;
  padding-bottom: 48px;
  position: relative;
}

.process-step:last-child {
  padding-bottom: 0;
}

.step-marker {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
}

.step-num {
  width: 44px;
  height: 44px;
  background: var(--gradient-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  position: relative;
  z-index: 2;
}

.step-line {
  width: 2px;
  flex: 1;
  background: linear-gradient(to bottom, var(--primary), rgba(37, 99, 235, 0.1));
  margin-top: 8px;
}

.process-step:last-child .step-line {
  display: none;
}

.step-content {
  padding-top: 8px;
}

.step-content h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.step-content p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* --- About --- */
.about-content {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 64px;
  align-items: start;
}

.about-text p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 2;
  margin-bottom: 20px;
}

.about-values {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.value-card {
  background: var(--bg-section);
  border-radius: var(--radius-md);
  padding: 24px;
  border: 1px solid var(--border-light);
  transition: var(--transition);
}

.value-card:hover {
  border-color: var(--primary);
  box-shadow: 0 0 0 1px var(--primary);
}

.value-icon {
  font-size: 1.8rem;
  margin-bottom: 8px;
}

.value-card h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.value-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* --- Contact --- */
.contact {
  background: var(--bg-section);
}

.contact-card {
  background: var(--gradient-dark);
  border-radius: var(--radius-xl);
  padding: 64px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.contact-card::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.15) 0%, transparent 70%);
  border-radius: 50%;
}

.contact-card h2 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-white);
  margin-bottom: 12px;
  position: relative;
}

.contact-card > p {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 40px;
  position: relative;
}

.contact-methods {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
  position: relative;
}

.contact-item {
  text-align: center;
}

.contact-label {
  display: block;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.4);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.contact-value {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 500;
}

a.contact-value:hover {
  color: var(--accent-light);
}

/* --- Footer --- */
.footer {
  background: var(--bg-dark);
  padding: 64px 0 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  margin-bottom: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-brand .logo {
  margin-bottom: 12px;
}

.footer-brand .logo-text {
  color: var(--text-white);
}

.footer-slogan {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.4);
}

.footer-links {
  display: flex;
  gap: 64px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 4px;
}

.footer-col a {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.35);
  transition: var(--transition);
}

.footer-col a:hover {
  color: rgba(255, 255, 255, 0.8);
}

.footer-bottom {
  text-align: center;
}

.footer-bottom p {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.25);
  line-height: 2;
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.35);
}

.footer-bottom a:hover {
  color: rgba(255, 255, 255, 0.6);
}

/* --- Animations --- */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: 1fr;
  }

  .tech-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .scenario-panel.active {
    grid-template-columns: 1fr;
  }

  .scenario-visual {
    display: none;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 24px;
    z-index: 999;
  }

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

  .nav-links.open .nav-link {
    color: var(--text-primary);
    font-size: 1.2rem;
  }

  .mobile-toggle {
    display: flex;
    z-index: 1001;
  }

  .nav-actions .btn-contact {
    display: none;
  }

  .hero {
    padding: 100px 0 60px;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-desc {
    font-size: 0.9rem;
  }

  .hero-desc br {
    display: none;
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .stat-number {
    font-size: 2rem;
  }

  .section {
    padding: 64px 0;
  }

  .section-title {
    font-size: 1.6rem;
  }

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

  .scenario-tabs {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .scenario-tab {
    min-width: auto;
    padding: 16px 12px;
    font-size: 0.8rem;
  }

  .scenario-content {
    padding: 24px;
  }

  .scenario-metrics {
    flex-wrap: wrap;
    gap: 16px;
  }

  .advantage-item {
    flex-direction: column;
    gap: 16px;
    padding: 24px;
  }

  .contact-card {
    padding: 40px 24px;
  }

  .contact-methods {
    flex-direction: column;
    gap: 24px;
  }

  .footer-content {
    flex-direction: column;
    gap: 32px;
  }

  .footer-links {
    flex-wrap: wrap;
    gap: 32px;
  }

  .process-step {
    gap: 20px;
  }

  .service-card {
    padding: 28px;
  }
}

@media (max-width: 480px) {
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    max-width: 280px;
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .service-features {
    grid-template-columns: 1fr;
  }
}