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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: #1e293b;
  background: #ffffff;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }
input, textarea { font: inherit; }

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

/* ============================================= */
/* Header                                        */
/* ============================================= */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(99,102,241,0.08);
  transition: box-shadow 0.3s;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  color: #1e293b;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  color: white;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 800;
  line-height: 1.2;
  text-align: center;
}

.nav-links {
  display: flex;
  gap: 28px;
}

.nav-links a {
  font-size: 15px;
  font-weight: 500;
  color: #64748b;
  transition: color 0.2s;
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: #6366f1;
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: #6366f1;
  border-radius: 1px;
}

.menu-toggle {
  display: none;
  font-size: 22px;
  color: #1e293b;
}

/* ============================================= */
/* Hero                                          */
/* ============================================= */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(180deg, #f0f7ff 0%, #e8f4f8 40%, #ffffff 100%);
  overflow: hidden;
  padding-top: 72px;
}

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

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  z-index: 0;
}

.hero-glow-1 {
  width: 500px;
  height: 500px;
  background: rgba(99,102,241,0.12);
  top: -100px;
  right: -100px;
  animation: glowFloat 8s ease-in-out infinite;
}

.hero-glow-2 {
  width: 400px;
  height: 400px;
  background: rgba(6,182,212,0.08);
  bottom: -80px;
  left: -80px;
  animation: glowFloat 10s ease-in-out infinite reverse;
}

@keyframes glowFloat {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(30px, -20px); }
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 60px 0;
}


.hero-badge {
  display: inline-block;
  padding: 6px 20px;
  border-radius: 100px;
  background: rgba(99,102,241,0.1);
  color: #6366f1;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 2px;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: 56px;
  font-weight: 900;
  line-height: 1.2;
  color: #1e293b;
  margin-bottom: 20px;
}

.hero-title-gradient {
  background: linear-gradient(135deg, #6366f1, #06b6d4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 18px;
  color: #64748b;
  max-width: 700px;
  margin: 0 auto 36px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 48px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  transition: all 0.3s;
}

.btn-primary {
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  color: white;
  box-shadow: 0 4px 20px rgba(99,102,241,0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(99,102,241,0.4);
}

.btn-outline {
  border: 2px solid #6366f1;
  color: #6366f1;
}

.btn-outline:hover {
  background: #6366f1;
  color: white;
}

.btn-block { width: 100%; justify-content: center; }

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
}

.hero-stat strong {
  display: block;
  font-size: 24px;
  font-weight: 800;
  background: linear-gradient(135deg, #6366f1, #06b6d4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-stat span {
  font-size: 13px;
  color: #94a3b8;
}

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

.section-title {
  text-align: center;
  margin-bottom: 60px;
}

.section-title h2 {
  font-size: 38px;
  font-weight: 800;
  color: #1e293b;
  margin-bottom: 12px;
}

.section-title p {
  font-size: 17px;
  color: #64748b;
}

/* ============================================= */
/* Products                                      */
/* ============================================= */
.products { background: #f8fafc; }

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.product-card {
  background: white;
  border-radius: 20px;
  padding: 36px 28px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.04);
  transition: transform 0.3s, box-shadow 0.3s;
  position: relative;
  overflow: hidden;
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #6366f1, #06b6d4);
  opacity: 0;
  transition: opacity 0.3s;
}

.product-card:hover::before { opacity: 1; }

.product-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: white;
  margin-bottom: 20px;
}

.product-card h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
}

.product-card > p {
  color: #64748b;
  font-size: 15px;
  margin-bottom: 16px;
}

.product-features {
  margin-bottom: 20px;
}

.product-features li {
  font-size: 14px;
  color: #475569;
  padding: 4px 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

.product-features li i {
  color: #10b981;
  font-size: 12px;
}

.product-link {
  color: #6366f1;
  font-weight: 600;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.2s;
}

.product-link:hover { gap: 10px; }

/* ============================================= */
/* Product Detail Showcase                       */
/* ============================================= */
.product-detail { background: #ffffff; }
.product-detail-alt { background: #f8fafc; }

.title-highlight {
  background: linear-gradient(135deg, #6366f1, #06b6d4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.product-detail-layout {
  display: flex;
  align-items: center;
  gap: 60px;
}

.product-detail-layout.reverse {
  flex-direction: row-reverse;
}

.product-detail-info {
  flex: 1;
}

.product-detail-info h3 {
  font-size: 28px;
  font-weight: 800;
  color: #1e293b;
  margin-bottom: 16px;
}

.product-detail-info h3 span {
  font-size: 16px;
  font-weight: 600;
  color: #6366f1;
  background: rgba(99,102,241,0.1);
  padding: 3px 12px;
  border-radius: 6px;
  margin-left: 8px;
  vertical-align: middle;
}

.product-detail-info > p {
  color: #64748b;
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 24px;
}

.detail-feat-list li {
  padding: 8px 0;
  font-size: 15px;
  color: #475569;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  line-height: 1.6;
}

.feat-icon {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  flex-shrink: 0;
  margin-top: 3px;
}

.product-detail-visual {
  flex: 0 0 420px;
}

.product-screenshot {
  width: 100%;
  border-radius: 20px;
  box-shadow: 0 20px 60px rgba(99,102,241,0.12);
}

/* 北京挂号 card group (similar to xyys) */
.bjgh-card-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.bjgh-card {
  background: white;
  border-radius: 16px;
  padding: 24px 20px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.05);
  transition: transform 0.3s, box-shadow 0.3s;
  border: 1px solid #f1f5f9;
}

.bjgh-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(99,102,241,0.1);
}

.bjgh-card i {
  font-size: 24px;
  color: #6366f1;
  margin-bottom: 12px;
  display: block;
}

.bjgh-card h5 {
  font-size: 16px;
  font-weight: 700;
  color: #1e293b;
  margin-bottom: 6px;
}

.bjgh-card p {
  font-size: 13px;
  color: #64748b;
  line-height: 1.5;
}

.bjgh-card.featured {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  border: none;
}

.bjgh-card.featured i,
.bjgh-card.featured h5 {
  color: white;
}

.bjgh-card.featured p {
  color: rgba(255,255,255,0.8);
}

/* ============================================= */
/* Solutions                                     */
/* ============================================= */
.solution-row {
  display: flex;
  align-items: center;
  gap: 60px;
  margin-bottom: 60px;
}

.solution-row.reverse { flex-direction: row-reverse; }
.solution-row:last-child { margin-bottom: 0; }

.solution-visual {
  flex: 0 0 320px;
}

.solution-mockup {
  width: 280px;
  height: 200px;
  background: linear-gradient(135deg, #eef2ff, #e0e7ff);
  border-radius: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-size: 48px;
  color: #6366f1;
  box-shadow: 0 8px 30px rgba(99,102,241,0.1);
}

.solution-mockup.hospital {
  background: linear-gradient(135deg, #ecfdf5, #d1fae5);
  color: #10b981;
}

.solution-mockup.gov {
  background: linear-gradient(135deg, #ecfeff, #cffafe);
  color: #06b6d4;
}

.solution-mockup span {
  font-size: 16px;
  font-weight: 700;
}

.solution-content { flex: 1; }

.solution-label {
  font-size: 12px;
  font-weight: 700;
  color: #6366f1;
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-bottom: 8px;
}

.solution-content h3 {
  font-size: 26px;
  font-weight: 800;
  margin-bottom: 12px;
}

.solution-content > p {
  color: #64748b;
  margin-bottom: 16px;
}

.solution-content ul li {
  padding: 6px 0;
  font-size: 15px;
  color: #475569;
  display: flex;
  align-items: center;
  gap: 10px;
}

.solution-content ul li i {
  color: #10b981;
}

/* ============================================= */
/* Stats                                         */
/* ============================================= */
.stats {
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.stats::before {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: rgba(255,255,255,0.05);
  top: -200px;
  right: -100px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}

.stat-item {
  color: white;
}

.stat-number {
  font-size: 52px;
  font-weight: 900;
  display: inline;
  line-height: 1;
}

.stat-suffix {
  font-size: 32px;
  font-weight: 700;
  display: inline;
  color: rgba(255,255,255,0.8);
}

.stat-label {
  font-size: 15px;
  color: rgba(255,255,255,0.75);
  margin-top: 8px;
}

/* ============================================= */
/* Technology                                    */
/* ============================================= */
.technology { background: #f8fafc; }

.tech-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.tech-card {
  background: white;
  border-radius: 20px;
  padding: 36px 28px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.04);
  transition: transform 0.3s, box-shadow 0.3s;
}

.tech-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.08);
}

.tech-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, #eef2ff, #e0e7ff);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: #6366f1;
  margin-bottom: 16px;
}

.tech-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
}

.tech-card p {
  color: #64748b;
  font-size: 15px;
}

/* ============================================= */
/* Partners                                      */
/* ============================================= */
.partners-scroll {
  overflow: hidden;
  margin-bottom: 40px;
}

.partners-track {
  display: flex;
  gap: 24px;
  animation: scrollPartners 30s linear infinite;
  width: max-content;
}

@keyframes scrollPartners {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.partner-item {
  flex-shrink: 0;
  padding: 16px 32px;
  background: white;
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
  font-size: 15px;
  font-weight: 600;
  color: #475569;
  white-space: nowrap;
  border: 1px solid #f1f5f9;
}

.trust-badges {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}

.trust-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: #f8fafc;
  border-radius: 100px;
  font-size: 13px;
  color: #64748b;
  border: 1px solid #e2e8f0;
}

.trust-badge i { color: #6366f1; }

/* ============================================= */
/* News                                          */
/* ============================================= */
.news { background: #f8fafc; }

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.news-card {
  background: white;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 4px 24px rgba(0,0,0,0.04);
  transition: transform 0.3s, box-shadow 0.3s;
}

.news-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.08);
}

.news-date {
  padding: 24px 28px 0;
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.news-day {
  font-size: 36px;
  font-weight: 900;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.news-month {
  font-size: 14px;
  color: #94a3b8;
}

.news-body {
  padding: 16px 28px 28px;
}

.news-body h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.5;
}

.news-body p {
  color: #64748b;
  font-size: 14px;
  margin-bottom: 14px;
  line-height: 1.7;
}

.news-link {
  color: #6366f1;
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.2s;
}

.news-link:hover { gap: 10px; }

/* ============================================= */
/* About                                         */
/* ============================================= */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.about-text p {
  color: #475569;
  font-size: 16px;
  margin-bottom: 16px;
}

.about-timeline {
  position: relative;
  padding-left: 32px;
}

.about-timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, #6366f1, #06b6d4);
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  padding-bottom: 32px;
  opacity: 0;
  transform: translateX(20px);
  transition: opacity 0.5s, transform 0.5s;
}

.timeline-item.visible {
  opacity: 1;
  transform: translateX(0);
}

.timeline-item::before {
  content: attr(data-year);
  position: absolute;
  left: -44px;
  top: 0;
  width: 28px;
  height: 28px;
  background: #6366f1;
  color: white;
  border-radius: 50%;
  font-size: 9px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.timeline-item h4 {
  font-size: 17px;
  font-weight: 700;
  color: #1e293b;
  margin-bottom: 4px;
}

.timeline-item p {
  font-size: 14px;
  color: #64748b;
}

/* ============================================= */
/* FAQ                                           */
/* ============================================= */
.faq .faq-tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 36px;
}

.faq-tab {
  padding: 10px 24px;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 600;
  color: #64748b;
  background: #f1f5f9;
  transition: all 0.2s;
}

.faq-tab.active {
  background: #6366f1;
  color: white;
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid #e2e8f0;
}

.faq-item.faq-hidden { display: none; }

.faq-q {
  width: 100%;
  text-align: left;
  padding: 18px 0;
  font-size: 16px;
  font-weight: 600;
  color: #1e293b;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: color 0.2s;
}

.faq-q:hover { color: #6366f1; }

.faq-q i {
  font-size: 12px;
  color: #94a3b8;
  transition: transform 0.3s;
}

.faq-item.open .faq-q i {
  transform: rotate(180deg);
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
}

.faq-item.open .faq-a {
  max-height: 300px;
}

.faq-a p {
  padding: 0 0 18px;
  color: #64748b;
  font-size: 15px;
  line-height: 1.7;
}

/* ============================================= */
/* Contact                                       */
/* ============================================= */
.contact { background: #f8fafc; }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.contact-item {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, #eef2ff, #e0e7ff);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: #6366f1;
  flex-shrink: 0;
}

.contact-item h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 2px;
}

.contact-item p {
  font-size: 14px;
  color: #64748b;
}

.contact-form {
  background: white;
  border-radius: 20px;
  padding: 32px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.04);
}

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

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 6px;
  color: #1e293b;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  font-size: 15px;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: #6366f1;
  box-shadow: 0 0 0 3px rgba(99,102,241,0.1);
}

.form-msg {
  font-size: 14px;
  padding: 8px 0;
  min-height: 28px;
}

.form-msg.success { color: #10b981; }
.form-msg.error { color: #ef4444; }

/* ============================================= */
/* Footer                                        */
/* ============================================= */
.footer {
  background: #0f172a;
  color: rgba(255,255,255,0.7);
  padding: 60px 0 0;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand .logo {
  color: white;
  margin-bottom: 16px;
}

.footer-brand .logo-icon {
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255,255,255,0.5);
}

.footer-col h4 {
  color: white;
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  font-size: 14px;
  color: rgba(255,255,255,0.5);
  padding: 4px 0;
  transition: color 0.2s;
}

.footer-col a:hover { color: white; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-links a {
  color: rgba(255,255,255,0.4);
  transition: color 0.2s;
}

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

/* ============================================= */
/* Scroll Top                                    */
/* ============================================= */
.scroll-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  color: white;
  border-radius: 12px;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(99,102,241,0.3);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.3s, transform 0.3s;
  z-index: 999;
}

.scroll-top.show {
  opacity: 1;
  transform: translateY(0);
}

.scroll-top:hover {
  transform: translateY(-4px);
}

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

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

/* Stagger delays for grids */
.products-grid .fade-up:nth-child(2) { transition-delay: 0.1s; }
.products-grid .fade-up:nth-child(3) { transition-delay: 0.2s; }
.tech-grid .fade-up:nth-child(2) { transition-delay: 0.1s; }
.tech-grid .fade-up:nth-child(3) { transition-delay: 0.2s; }
.tech-grid .fade-up:nth-child(4) { transition-delay: 0.3s; }
.news-grid .fade-up:nth-child(2) { transition-delay: 0.1s; }
.news-grid .fade-up:nth-child(3) { transition-delay: 0.2s; }

/* ============================================= */
/* Responsive                                    */
/* ============================================= */
@media (max-width: 1024px) {
  .about-content { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  .menu-toggle { display: block; }

  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: 16px 24px;
    gap: 0;
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
  }

  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 0; border-bottom: 1px solid #f1f5f9; }
  .nav-links a.active::after { display: none; }

  .hero h1 { font-size: 36px; }
  .hero-desc { font-size: 16px; }
  .hero-stats { gap: 24px; }
  .hero-actions { flex-direction: column; align-items: center; }

  .section { padding: 60px 0; }
  .section-title h2 { font-size: 28px; }
  .section-title { margin-bottom: 40px; }

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

  .product-detail-layout,
  .product-detail-layout.reverse { flex-direction: column; }
  .product-detail-visual { flex: none; width: 100%; max-width: 400px; margin: 0 auto; }

  .solution-row,
  .solution-row.reverse { flex-direction: column; }
  .solution-visual { flex: none; width: 100%; display: flex; justify-content: center; }

  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .stat-number { font-size: 36px; }

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

  .footer-top { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 28px; }
  .hero-stats { flex-direction: column; gap: 12px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .trust-badges { flex-direction: column; align-items: center; }
}