/* ===== 欢腾IT服务官网 · V1.0 ===== */

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

:root {
  --brand-blue:   #2d6bc4;
  --rescue-red:   #dc3545;
  --tech-blue:    #2563eb;
  --warm-orange:  #f97316;
  --success-green:#10b981;
  --bg-warm:      #fafaf9;
  --card-white:   #ffffff;
  --text-main:    #1a1a2e;
  --text-sub:     #6b7280;
  --border-light: #e5e7eb;
  --radius-sm:    8px;
  --radius-md:    12px;
  --radius-lg:    20px;
  --shadow-card:  0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --shadow-hover: 0 4px 12px rgba(0,0,0,.10);
  --shadow-nav:   0 1px 3px rgba(0,0,0,.08);
  --max-width:    1120px;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  background: var(--bg-warm);
  color: var(--text-main);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

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

.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header h2 {
  font-size: 36px;
  font-weight: 700;
  color: var(--text-main);
}

.section-subtitle {
  font-size: 16px;
  color: var(--text-sub);
  margin-top: 12px;
}

.section-icon {
  font-size: 40px;
  margin-bottom: 12px;
}

/* === Reveal Animation === */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 600ms ease-out, transform 600ms ease-out;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* === Nav === */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: transparent;
  transition: background 200ms ease, box-shadow 200ms ease;
  padding: 0 24px;
}
.site-nav.scrolled {
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-nav);
}
.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 18px;
  color: var(--brand-blue);
}
.site-nav.scrolled .nav-logo { color: var(--brand-blue); }
.nav-logo svg { flex-shrink: 0; }
.nav-links {
  display: flex;
  gap: 32px;
}
.nav-links a {
  font-size: 15px;
  color: var(--text-sub);
  position: relative;
  padding: 6px 0;
  transition: color 150ms;
}
.nav-links a:hover,
.nav-links a.active { color: var(--brand-blue); }

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 2px;
  background: var(--rescue-red);
  transition: width 200ms;
}
.nav-links a.active::after { width: 100%; }
.nav-links a:hover::after { width: 100%; }

.nav-phone {
  font-size: 15px;
  color: var(--brand-blue);
  font-weight: 600;
  padding: 6px 16px;
  border: 1px solid var(--brand-blue);
  border-radius: var(--radius-sm);
  transition: background 200ms, border-color 200ms;
}
.nav-phone:hover { background: rgba(45,107,196,.05); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.lang-toggle {
  font-size: 12px;
  font-weight: 700;
  color: var(--brand-blue);
  background: rgba(45,107,196,.08);
  border: 1px solid var(--brand-blue);
  border-radius: var(--radius-sm);
  padding: 4px 12px;
  cursor: pointer;
  transition: background 200ms;
  line-height: 1.6;
}
.lang-toggle:hover { background: rgba(45,107,196,.15); }
.nav-cta-mobile { display: none; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--brand-blue);
  transition: all 200ms;
  border-radius: 1px;
}
.site-nav.scrolled .hamburger span { background: var(--brand-blue); }
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

/* === Hero === */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: #eaf1fb;
  padding-top: 64px;
}

/* ===== Hero Slideshow ===== */
.hero-slideshow {
  position: absolute; inset: 0;
  z-index: 0;
}
.hero-slide {
  position: absolute; inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0;
  transition: opacity 1.2s ease-in-out;
}
.hero-slide.active {
  opacity: 1;
}
.hero-slide-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(234,241,251,.55) 0%, rgba(234,241,251,.4) 50%, rgba(234,241,251,.6) 100%);
  z-index: 1;
}

/* Slide dots */
.hero-slide-dots {
  position: absolute;
  bottom: 100px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 12px;
  z-index: 2;
}
.hero-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid var(--brand-blue);
  background: transparent;
  cursor: pointer;
  transition: all 300ms;
  padding: 0;
  outline: none;
}
.hero-dot.active {
  background: var(--brand-blue);
  border-color: var(--brand-blue);
  transform: scale(1.4);
  box-shadow: 0 0 8px rgba(45,107,196,.4);
}
.hero-dot:hover {
  border-color: var(--brand-blue);
  background: rgba(45,107,196,.2);
}
.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 60px 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 3;
}
.hero-left { color: var(--text-main); text-shadow: none; }
.hero-badge {
  display: inline-block;
  background: rgba(45,107,196,.1);
  border: 1px solid rgba(45,107,196,.25);
  color: var(--brand-blue);
  font-size: 14px;
  padding: 6px 16px;
  border-radius: var(--radius-lg);
  margin-bottom: 24px;
}
.hero-title {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 28px;
}
.hero-title .line { display: block; }
.hero-title .highlight {
  color: transparent;
  background: linear-gradient(135deg, var(--rescue-red), #f97316);
  -webkit-background-clip: text;
  background-clip: text;
}
.hero-trust-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
}
.trust-tag {
  font-size: 13px;
  padding: 4px 14px;
  background: rgba(45,107,196,.08);
  border-radius: var(--radius-lg);
  color: var(--brand-blue);
}
.hero-cta { display: flex; gap: 16px; margin-bottom: 24px; }
.hero-micro-trust {
  display: flex; flex-wrap: wrap; gap: 20px;
  font-size: 13px; color: var(--text-sub);
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 12px 28px;
  font-size: 16px; font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all 200ms;
  cursor: pointer;
  border: 2px solid transparent;
}
.btn-primary {
  background: var(--rescue-red);
  color: #fff;
  border-color: var(--rescue-red);
}
.btn-primary:hover { background: #c82333; border-color: #c82333; transform: translateY(-1px); }
.btn-outline {
  background: transparent;
  color: var(--brand-blue);
  border-color: var(--brand-blue);
}
.btn-outline:hover { background: rgba(45,107,196,.08); border-color: var(--brand-blue); transform: translateY(-1px); }
.btn-lg { padding: 16px 40px; font-size: 18px; }

/* Hero right */
.hero-right { display: flex; align-items: center; justify-content: center; }
.hero-visual { position: relative; }
.hero-svg { display: block; max-width: 400px; width: 100%; }
.hero-badge-seal {
  position: absolute;
  right: 10px; bottom: 10px;
  width: 80px; height: 80px;
  opacity: .9;
}
.hero-badge-seal svg { width: 100%; height: 100%; }
.hero-badge-seal text {
  font-size: 11px; fill: var(--rescue-red); font-weight: 600;
}
.hero-scroll-hint {
  position: absolute;
  bottom: 32px; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  font-size: 13px; color: var(--text-sub);
  animation: bounce 2s infinite;
  z-index: 2;
}
@keyframes bounce {
  0%,100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* === Data Recovery Section === */
.section-dr { background: #fff; }

.device-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 64px;
}
.device-card {
  background: var(--bg-warm);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow-card);
  transition: transform 200ms, box-shadow 200ms;
  position: relative;
}
.device-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.device-icon { font-size: 36px; margin-bottom: 12px; }
.device-card h3 { font-size: 18px; font-weight: 600; margin-bottom: 12px; }
.rate-bar {
  height: 6px; background: var(--border-light);
  border-radius: 3px; margin: 0 auto 6px;
  max-width: 160px; overflow: hidden;
}
.rate-fill {
  height: 100%; border-radius: 3px;
  background: linear-gradient(90deg, var(--success-green), #34d399);
  transition: width 1500ms ease-out;
}
.rate-num {
  font-size: 20px; font-weight: 700; color: var(--success-green);
}
.device-desc {
  font-size: 13px; color: var(--text-sub); margin-top: 8px;
}

/* Flow */
.flow-section {
  margin-bottom: 64px;
  text-align: center;
}
.flow-heading {
  font-size: 24px; font-weight: 600;
  margin-bottom: 32px; color: var(--text-main);
}
.flow-tabs {
  display: flex; justify-content: center; gap: 8px;
  margin-bottom: 32px;
}
.flow-tab {
  background: var(--bg-warm); border: 1px solid var(--border-light);
  padding: 8px 20px; border-radius: var(--radius-sm);
  font-size: 14px; cursor: pointer;
  transition: all 200ms; color: var(--text-sub);
  font-family: inherit;
}
.flow-tab.active {
  background: var(--brand-blue); color: #fff;
  border-color: var(--brand-blue);
}
.flow-steps {
  display: flex; align-items: flex-start; justify-content: center;
  gap: 0; flex-wrap: wrap;
}
.flow-step {
  text-align: center; width: 140px;
}
.step-circle {
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--bg-warm); border: 2px solid var(--border-light);
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; margin: 0 auto 12px;
  transition: all 200ms;
}
.flow-step.highlight-step .step-circle {
  border-color: var(--rescue-red);
  background: rgba(220,53,69,.05);
}
.flow-step h4 { font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.flow-step p { font-size: 12px; color: var(--text-sub); line-height: 1.6; }
.flow-connector {
  width: 48px; height: 2px;
  background: var(--border-light);
  margin-top: 28px;
  flex-shrink: 0;
}

/* Lab */
.lab-section { margin-bottom: 64px; }
.lab-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.lab-card {
  background: var(--bg-warm);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform 200ms;
}
.lab-card:hover { transform: translateY(-4px); }
.lab-img { width: 100%; aspect-ratio: 3/2; overflow: hidden; background: var(--border-light); }
.lab-img svg { width: 100%; height: 100%; display: block; }
.placeholder-img svg { width: 100%; height: 100%; }
.lab-info { padding: 16px 20px; }
.lab-info h4 { font-size: 16px; font-weight: 600; margin-bottom: 4px; }
.lab-info p { font-size: 13px; color: var(--text-sub); }

/* Stats */
.stats-section { text-align: center; }
.stat-hero {
  display: inline-block;
  background: linear-gradient(135deg, #ecfdf5, #d1fae5);
  border-radius: var(--radius-md);
  padding: 40px 60px;
  margin-bottom: 12px;
}
.stat-big-num {
  font-size: 64px; font-weight: 800; color: var(--success-green);
  line-height: 1;
}
.stat-unit { font-size: 32px; }
.stat-label { font-size: 18px; color: var(--text-sub); margin-top: 4px; }
.stat-note { font-size: 13px; color: var(--text-sub); }

/* === Trust === */
.section-trust { background: var(--bg-warm); }
.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.trust-card {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 36px 28px;
  box-shadow: var(--shadow-card);
  text-align: center;
  transition: transform 200ms, box-shadow 200ms;
}
.trust-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.trust-icon { font-size: 40px; margin-bottom: 16px; }
.trust-card h3 { font-size: 20px; font-weight: 600; margin-bottom: 10px; }
.trust-card p { font-size: 14px; color: var(--text-sub); line-height: 1.7; }

/* === Cases === */
.section-cases { background: #fff; }
.cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
  margin-bottom: 24px;
}
.case-card {
  background: var(--bg-warm);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-card);
  transition: transform 200ms;
  position: relative;
  overflow: hidden;
}
.case-card:hover { transform: translateY(-4px); }
.case-badge {
  display: inline-block;
  padding: 2px 12px; border-radius: var(--radius-lg);
  font-size: 12px; font-weight: 600;
  margin-bottom: 16px;
}
.case-badge-enterprise { background: rgba(37,99,235,.1); color: var(--tech-blue); }
.case-badge-personal  { background: rgba(249,115,22,.1); color: var(--warm-orange); }
.case-badge-emergency { background: rgba(220,53,69,.1); color: var(--rescue-red); }

.case-image {
  width: 100%; aspect-ratio: 750/400;
  object-fit: cover; border-radius: var(--radius-sm);
  margin-bottom: 16px; background: var(--border-light);
}
.case-title { font-size: 17px; font-weight: 600; margin-bottom: 12px; }
.case-detail { font-size: 14px; color: var(--text-sub); margin-bottom: 6px; }
.case-result { font-size: 14px; font-weight: 600; color: var(--success-green); margin: 10px 0 4px; }
.case-time { font-size: 13px; color: var(--text-sub); margin-bottom: 12px; }
.case-eval {
  font-size: 14px; color: var(--text-main); font-style: italic;
  padding: 12px 16px; background: #fff; border-radius: var(--radius-sm);
  border-left: 3px solid var(--tech-blue); margin: 0;
}
.case-eval cite {
  display: block; font-size: 13px; color: var(--text-sub);
  margin-top: 4px; font-style: normal;
}
.cases-more p { text-align: center; font-size: 14px; color: var(--text-sub); }

/* === About === */
.section-about { background: var(--bg-warm); }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 48px;
}
.about-image { width: 100%; }
.about-img-placeholder svg { width: 100%; display: block; }
.about-content { display: flex; flex-direction: column; gap: 24px; }
.about-text p { font-size: 15px; color: var(--text-main); margin-bottom: 12px; line-height: 1.8; }
.about-text strong { color: var(--brand-blue); }
.about-contact { display: flex; flex-direction: column; gap: 12px; }
.contact-item {
  display: flex; align-items: center; gap: 10px;
  font-size: 15px; color: var(--text-main);
}
.contact-icon { font-size: 18px; flex-shrink: 0; }
.contact-item a { color: var(--tech-blue); font-weight: 500; }

.about-map { margin-top: 32px; }
.map-card {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 14px;
  padding: 40px 32px;
  display: flex;
  align-items: center;
  gap: 40px;
  position: relative;
  overflow: hidden;
}
.map-card::before {
  content: '';
  position: absolute;
  top: -50%; left: -20%;
  width: 60%; height: 200%;
  background: radial-gradient(circle at center, rgba(255,255,255,0.08) 0%, transparent 70%);
}
.map-visual {
  width: 140px; height: 140px;
  flex-shrink: 0;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.12);
  border-radius: 50%;
}
.map-pin { font-size: 48px; position: relative; z-index: 2; }
.map-rings { position: absolute; inset: 0; }
.ring {
  position: absolute; inset: 0; border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.3);
  animation: ping 2.5s ease-out infinite;
}
.r1 { animation-delay: 0s; }
.r2 { animation-delay: 0.8s; }
.r3 { animation-delay: 1.6s; }
@keyframes ping {
  0% { transform: scale(0.6); opacity: 0.8; }
  100% { transform: scale(1.4); opacity: 0; }
}
.map-info { color: #fff; position: relative; z-index: 2; flex: 1; }
.map-addr { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.map-tel { font-size: 15px; opacity: 0.9; margin-bottom: 18px; }
.map-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.nav-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 10px 22px;
  border-radius: 8px;
  background: rgba(255,255,255,0.2);
  color: #fff; text-decoration: none;
  font-size: 14px; font-weight: 600;
  backdrop-filter: blur(4px);
  transition: background 0.2s;
}
.nav-btn:hover { background: rgba(255,255,255,0.35); }
.nav-btn.tx { background: rgba(0,204,102,0.45); }
.nav-btn.tx:hover { background: rgba(0,204,102,0.65); }
.nav-btn.gd { background: rgba(0,150,255,0.45); }
.nav-btn.gd:hover { background: rgba(0,150,255,0.65); }
@media (max-width: 600px) {
  .map-card { flex-direction: column; text-align: center; padding: 28px 20px; }
  .map-visual { width: 100px; height: 100px; }
  .map-pin { font-size: 36px; }
  .map-actions { justify-content: center; }
}

/* === CTA === */
.section-cta {
  background: var(--brand-blue);
  color: #fff;
  text-align: center;
  padding: 80px 0;
}
.section-cta h2 { font-size: 30px; font-weight: 700; margin-bottom: 32px; }
.cta-buttons { display: flex; justify-content: center; gap: 16px; margin-bottom: 24px; flex-wrap: wrap; }
.cta-hint { font-size: 14px; color: rgba(255,255,255,.6); margin-bottom: 20px; }
.cta-qr { display: flex; justify-content: center; margin-bottom: 20px; }
/* 三码并排 */
.cta-qr-row {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.cta-qr-row .qr-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.cta-qr-row .qr-item span {
  font-size: 13px;
  color: var(--gray-text);
}
.cta-qr-row .qr-placeholder {
  width: 100px; height: 100px;
  background: #fff;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.cta-qr-row .qr-placeholder img { width: 100%; height: 100%; object-fit: contain; }
.qr-placeholder svg { width: 100px; height: 100px; }
.cta-emergency {
  font-size: 15px; color: var(--warm-orange); font-weight: 500;
}

/* === Modal === */
.modal-overlay {
  display: none; position: fixed; inset: 0; z-index: 9999;
  background: rgba(0,0,0,.5);
  align-items: center; justify-content: center;
}
.modal-overlay.show { display: flex; }
.modal {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 40px;
  max-width: 440px; width: 90%;
  position: relative;
  box-shadow: 0 20px 60px rgba(0,0,0,.2);
}
.modal h3 { font-size: 20px; font-weight: 700; margin-bottom: 24px; }
.modal-close {
  position: absolute; top: 12px; right: 16px;
  background: none; border: none;
  font-size: 28px; cursor: pointer; color: var(--text-sub);
  line-height: 1;
}
.modal form { display: flex; flex-direction: column; gap: 12px; }
.modal input, .modal textarea {
  padding: 12px 16px; border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  font-size: 15px; font-family: inherit;
  transition: border-color 200ms;
}
.modal input:focus, .modal textarea:focus {
  outline: none; border-color: var(--tech-blue);
}
.modal textarea { resize: vertical; }

/* === Footer === */
.site-footer {
  background: var(--bg-warm);
  color: var(--text-sub);
  padding: 48px 0 32px;
  font-size: 14px;
  border-top: 1px solid var(--border-light);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 2fr;
  gap: 40px;
  margin-bottom: 32px;
}
.footer-brand h3 { font-size: 20px; color: var(--text-main); margin-bottom: 8px; }
.footer-brand p { font-size: 14px; }
.footer-links { display: flex; flex-direction: column; gap: 8px; }
.footer-links a { color: var(--text-sub); transition: color 150ms; }
.footer-links a:hover { color: var(--brand-blue); }
.footer-contact { display: flex; flex-direction: column; gap: 6px; }
.footer-bottom {
  border-top: 1px solid var(--border-light);
  padding-top: 20px; text-align: center;
  font-size: 13px; color: var(--text-sub);
}

/* === Responsive === */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-title { font-size: 32px; }
  .hero-trust-tags { justify-content: center; }
  .hero-cta { justify-content: center; }
  .hero-micro-trust { justify-content: center; }
  .hero-right { display: none; }
  .hero-badge-seal { display: none; }
  .hero-slide-dots { bottom: 80px; }
  .hero-slide { background-size: contain; background-position: center 60px; }

  .device-grid { grid-template-columns: repeat(2, 1fr); }
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .lab-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }

  .flow-steps { flex-direction: column; align-items: center; gap: 16px; }
  .flow-connector { width: 2px; height: 24px; }
  .flow-step { width: 200px; }

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

  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .section { padding: 48px 0; }
  .section-header h2 { font-size: 28px; }
  .stat-big-num { font-size: 48px; }
  .stat-hero { padding: 28px 40px; }

  /* Mobile nav */
  .nav-links {
    display: none;
    position: absolute; top: 64px; left: 0; right: 0;
    background: rgba(234,241,251,.98);
    flex-direction: column; gap: 0; padding: 12px 0;
  }
  .nav-links.show { display: flex; }
  .nav-links a { padding: 12px 24px; border-bottom: 1px solid rgba(0,0,0,.06); color: var(--text-sub); }
  .nav-cta-mobile { display: block; }
  .nav-cta-mobile a { color: var(--warm-orange) !important; font-weight: 600; }
  .nav-phone { display: none; }
  .lang-toggle { font-size: 11px; padding: 3px 10px; }
  .hamburger { display: flex; }
  .site-nav.scrolled .nav-links { background: rgba(255,255,255,.98); }
  .site-nav.scrolled .nav-links a { border-bottom-color: rgba(0,0,0,.06); }
}

@media (max-width: 600px) {
  .device-grid { grid-template-columns: 1fr; }
  .trust-grid { grid-template-columns: 1fr; }
  .hero-slide-dots { bottom: 50px; }
  .hero-slide { min-height: 250px; }
}