/* ============================================
   深圳市圣达维软件开发有限公司 - 全局样式
   简约大气风格
   ============================================ */

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

:root {
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-primary-light: #dbeafe;
  --color-accent: #6366f1;
  --color-bg: #ffffff;
  --color-bg-alt: #f8fafc;
  --color-bg-dark: #0f172a;
  --color-text: #1e293b;
  --color-text-secondary: #64748b;
  --color-text-light: #94a3b8;
  --color-border: #e2e8f0;
  --color-success: #10b981;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.08), 0 4px 10px -6px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 50px -12px rgba(0, 0, 0, 0.12);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-full: 9999px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

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

/* --- Header / Navigation --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition);
}

.header.scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.5px;
}

.logo-img {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a {
  padding: 8px 18px;
  border-radius: var(--radius-full);
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: all var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-primary);
  background: var(--color-primary-light);
}

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

.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: var(--radius-full);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
  letter-spacing: 0.3px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(37, 99, 235, 0.4);
}

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.btn-block {
  width: 100%;
}

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

.section-alt {
  background: var(--color-bg-alt);
}

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

.section-label {
  display: inline-block;
  padding: 6px 16px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-title {
  font-size: 36px;
  font-weight: 700;
  letter-spacing: -1px;
  color: var(--color-text);
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 17px;
  color: var(--color-text-secondary);
  max-width: 520px;
  margin: 0 auto;
}

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 72px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% -20%, rgba(37, 99, 235, 0.08), transparent),
    radial-gradient(ellipse 60% 50% at 80% 80%, rgba(99, 102, 241, 0.06), transparent);
  z-index: 0;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(37, 99, 235, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37, 99, 235, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 20%, transparent 70%);
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
  padding: 40px 0;
}

.hero-tag {
  display: inline-block;
  padding: 6px 18px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  margin-bottom: 28px;
}

.hero-title {
  font-size: clamp(40px, 6vw, 64px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -2px;
  color: var(--color-text);
  margin-bottom: 24px;
}

.hero-desc {
  font-size: 18px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  max-width: 600px;
  margin: 0 auto 40px;
}

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

/* --- Animations --- */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUp 0.8s ease forwards;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }

@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --- Features Grid --- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 28px;
}

.feature-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: all var(--transition);
}

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

.feature-icon {
  width: 52px;
  height: 52px;
  padding: 12px;
  background: var(--color-primary-light);
  border-radius: var(--radius-sm);
  color: var(--color-primary);
  margin-bottom: 20px;
}

.feature-icon svg {
  width: 100%;
  height: 100%;
}

.feature-card h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--color-text);
}

.feature-card p {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* --- Scenarios --- */
.scenarios-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.scenario-item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
}

.scenario-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.scenario-img-placeholder {
  font-size: 36px;
  line-height: 1;
}

.scenario-item h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
}

.scenario-item p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* --- CTA --- */
.cta {
  text-align: center;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  padding: 80px 0;
}

.cta h2 {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -1px;
}

.cta p {
  font-size: 17px;
  opacity: 0.9;
  margin-bottom: 32px;
}

.cta .btn-primary {
  background: #fff;
  color: var(--color-primary);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.cta .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 30px rgba(0, 0, 0, 0.2);
}

/* --- Footer --- */
.footer {
  background: var(--color-bg-dark);
  color: #cbd5e1;
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
}

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

.footer-brand p {
  font-size: 14px;
  color: #94a3b8;
}

.footer-links h4,
.footer-contact h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
}

.footer-links ul,
.footer-contact ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a,
.footer-contact li {
  font-size: 14px;
  color: #94a3b8;
  transition: color var(--transition);
}

.footer-links a:hover {
  color: #fff;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 24px 0;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: #64748b;
}

/* ============================================
   关于我们页面
   ============================================ */

.page-hero {
  padding: 140px 0 80px;
  text-align: center;
  background:
    radial-gradient(ellipse 60% 50% at 50% 0%, rgba(37, 99, 235, 0.06), transparent);
}

.page-hero h1 {
  font-size: 44px;
  font-weight: 800;
  letter-spacing: -1.5px;
  margin-bottom: 12px;
}

.page-hero p {
  font-size: 17px;
  color: var(--color-text-secondary);
}

/* --- About Intro --- */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-text h2 {
  font-size: 30px;
  font-weight: 700;
  margin-bottom: 24px;
  letter-spacing: -1px;
}

.about-text p {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.9;
  margin-bottom: 16px;
}

.about-text strong {
  color: var(--color-primary);
}

/* --- Stats --- */
.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.stat-item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  transition: all var(--transition);
}

.stat-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-light);
}

.stat-number {
  display: block;
  font-size: 32px;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -1px;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 14px;
  color: var(--color-text-secondary);
}

/* --- Timeline --- */
.timeline {
  position: relative;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 11px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--color-border);
}

.timeline-item {
  position: relative;
  margin-bottom: 36px;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -40px;
  top: 8px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 4px solid var(--color-bg);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.timeline-year {
  display: inline-block;
  padding: 4px 14px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 8px;
}

.timeline-content h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 6px;
}

.timeline-content p {
  font-size: 15px;
  color: var(--color-text-secondary);
}

/* --- Values --- */
.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.value-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 36px 28px;
  text-align: center;
  transition: all var(--transition);
}

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

.value-icon {
  font-size: 40px;
  margin-bottom: 16px;
}

.value-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.value-card p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ============================================
   产品服务页面
   ============================================ */

.products-list {
  display: flex;
  flex-direction: column;
  gap: 80px;
}

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

.product-detail.reverse .product-visual {
  order: -1;
}

.product-badge {
  display: inline-block;
  padding: 4px 14px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.product-info h2 {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 16px;
}

.product-summary {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.9;
  margin-bottom: 28px;
}

.product-features {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.pf-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.pf-check {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: #ecfdf5;
  color: var(--color-success);
  border-radius: 50%;
  font-size: 14px;
  font-weight: 700;
  margin-top: 1px;
}

.pf-item strong {
  display: block;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 3px;
}

.pf-item p {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* --- Product Visual / Demo --- */
.product-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.agent-demo {
  width: 100%;
  max-width: 400px;
}

/* Chat Demo */
.agent-chat-window {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.chat-header {
  padding: 14px 18px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  font-size: 14px;
  font-weight: 600;
}

.chat-body {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 240px;
}

.chat-msg {
  max-width: 80%;
  padding: 10px 14px;
  border-radius: 14px;
  font-size: 13px;
  line-height: 1.6;
}

.chat-msg.user {
  align-self: flex-end;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-bottom-right-radius: 4px;
}

.chat-msg.bot {
  align-self: flex-start;
  background: var(--color-bg-alt);
  color: var(--color-text);
  border-bottom-left-radius: 4px;
}

/* Data Demo */
.data-demo {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 24px;
  box-shadow: var(--shadow-xl);
}

.data-query {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 14px 16px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
}

.query-label {
  font-size: 12px;
  color: var(--color-text-light);
  font-weight: 600;
}

.data-query span:last-child {
  font-size: 14px;
  color: var(--color-text);
}

.mini-chart {
  display: flex;
  align-items: flex-end;
  gap: 20px;
  height: 140px;
  padding: 0 10px;
}

.mini-chart .bar {
  flex: 1;
  background: linear-gradient(to top, var(--color-primary), var(--color-accent));
  border-radius: 8px 8px 0 0;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 8px;
}

.mini-chart .bar span {
  font-size: 11px;
  font-weight: 600;
  color: #fff;
  transform: translateY(24px);
  color: var(--color-text-secondary);
}

.chart-caption {
  text-align: center;
  font-size: 13px;
  color: var(--color-text-light);
  margin-top: 16px;
}

/* Workflow Demo */
.workflow-demo {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 32px 20px;
  box-shadow: var(--shadow-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}

.wf-step {
  padding: 16px 20px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  text-align: center;
  white-space: nowrap;
}

.wf-arrow {
  font-size: 20px;
  color: var(--color-text-light);
  font-weight: 700;
}

/* Tech Grid */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.tech-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  transition: all var(--transition);
}

.tech-card:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-md);
}

.tech-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}

.tech-card p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ============================================
   联系我们页面
   ============================================ */

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.contact-info h2,
.contact-form-wrapper h2 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -1px;
}

.contact-intro {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
  line-height: 1.7;
}

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

.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.ci-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-light);
  border-radius: var(--radius-sm);
  font-size: 20px;
}

.contact-item h3 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 4px;
}

.contact-item p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* Contact Form */
.contact-form-wrapper {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 36px 32px;
  box-shadow: var(--shadow-md);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-top: 24px;
}

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
}

.required {
  color: #ef4444;
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 12px 16px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: inherit;
  color: var(--color-text);
  background: var(--color-bg);
  transition: all var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-light);
}

.form-group select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%2394a3b8' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
}

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

/* Map Section */
.map-section {
  padding-top: 0;
}

.map-placeholder {
  width: 100%;
  height: 320px;
  background: linear-gradient(135deg, #e8f0fe, #eef2ff);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
}

.map-content {
  text-align: center;
}

.map-pin {
  font-size: 48px;
  display: block;
  margin-bottom: 12px;
}

.map-content h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 6px;
}

.map-content p {
  font-size: 15px;
  color: var(--color-text-secondary);
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    padding: 16px 24px;
    gap: 4px;
    box-shadow: var(--shadow-lg);
  }

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

  .mobile-toggle {
    display: flex;
  }

  .hero-title {
    font-size: 36px;
  }

  .hero-desc {
    font-size: 15px;
  }

  .section {
    padding: 60px 0;
  }

  .section-title {
    font-size: 28px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  /* About */
  .about-intro {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about-stats {
    grid-template-columns: 1fr 1fr;
  }

  /* Products */
  .product-detail,
  .product-detail.reverse {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .product-detail.reverse .product-visual {
    order: 0;
  }

  .product-info h2 {
    font-size: 26px;
  }

  .workflow-demo {
    gap: 4px;
  }

  .wf-step {
    padding: 12px 14px;
    font-size: 11px;
  }

  .wf-arrow {
    font-size: 16px;
  }

  /* Contact */
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .page-hero {
    padding: 120px 0 60px;
  }

  .page-hero h1 {
    font-size: 32px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 28px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

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

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

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

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

  .product-features {
    gap: 14px;
  }
}