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

:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-tertiary: #1a1a2e;
  --bg-card: #16162a;
  --bg-card-hover: #1e1e38;
  --text-primary: #e8e8f0;
  --text-secondary: #9898b0;
  --text-muted: #6868a0;
  --border-color: #2a2a4a;
  --gradient-start: #6C5CE7;
  --gradient-end: #a29bfe;
  --gradient-accent: #00B894;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 48px rgba(0, 0, 0, 0.4);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
}

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

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

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
}

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

/* ===== Gradient Text ===== */
.gradient-text {
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  color: #fff;
  box-shadow: 0 4px 16px rgba(108, 92, 231, 0.3);
}

.btn-primary:hover {
  box-shadow: 0 6px 24px rgba(108, 92, 231, 0.5);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--border-color);
}

.btn-outline:hover {
  border-color: var(--gradient-start);
  background: rgba(108, 92, 231, 0.1);
}

.btn-block {
  width: 100%;
}

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

.navbar.scrolled {
  background: rgba(10, 10, 15, 0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  padding: 10px 0;
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 1px;
}

.logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  border-radius: 10px;
  font-size: 18px;
  font-weight: 800;
  color: #fff;
}

.logo-icon.small {
  width: 28px;
  height: 28px;
  font-size: 14px;
  border-radius: 8px;
}

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

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
  position: relative;
}

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
  transition: var(--transition);
  border-radius: 1px;
}

.nav-links a:hover::after {
  width: 100%;
}

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

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

/* ===== Hero ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 50% 0%, rgba(108, 92, 231, 0.15), transparent),
    radial-gradient(ellipse 40% 40% at 80% 50%, rgba(0, 184, 148, 0.08), transparent),
    radial-gradient(ellipse 30% 30% at 20% 80%, rgba(162, 155, 254, 0.08), transparent);
  pointer-events: none;
}

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

.hero-badge {
  display: inline-block;
  padding: 6px 20px;
  border-radius: 100px;
  background: rgba(108, 92, 231, 0.15);
  border: 1px solid rgba(108, 92, 231, 0.3);
  color: var(--gradient-end);
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 32px;
}

.hero-title {
  font-size: clamp(36px, 6vw, 72px);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 24px;
  letter-spacing: -0.5px;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto 40px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 60px;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 60px;
}

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 36px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 4px;
}

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

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

.section-tag {
  display: inline-block;
  padding: 4px 16px;
  border-radius: 100px;
  background: rgba(108, 92, 231, 0.12);
  color: var(--gradient-end);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.3px;
}

.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
}

/* ===== Features Grid ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(108, 92, 231, 0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  background: rgba(108, 92, 231, 0.12);
  color: var(--accent, var(--gradient-start));
}

.feature-icon svg {
  width: 24px;
  height: 24px;
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
}

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

/* ===== Showcase ===== */
.showcase {
  background: var(--bg-secondary);
}

.showcase-tabs {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.tab-btn {
  padding: 8px 20px;
  border-radius: 100px;
  border: 1px solid var(--border-color);
  background: transparent;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-sans);
}

.tab-btn:hover {
  border-color: var(--gradient-start);
  color: var(--text-primary);
}

.tab-btn.active {
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  border-color: transparent;
  color: #fff;
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
  animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.showcase-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.showcase-info h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 16px;
}

.showcase-info > p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 24px;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-secondary);
}

.feature-list li::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gradient-start);
  flex-shrink: 0;
}

/* Phone Mockup */
.phone-mockup {
  background: #1a1a2e;
  border-radius: 28px;
  border: 2px solid #2a2a4a;
  padding: 12px;
  box-shadow: var(--shadow-lg);
  max-width: 300px;
  margin: 0 auto;
}

.phone-mockup.landscape {
  max-width: 560px;
  border-radius: 20px;
  padding: 10px;
}

.phone-notch {
  width: 60px;
  height: 6px;
  background: #2a2a4a;
  border-radius: 3px;
  margin: 0 auto 10px;
}

.phone-screen {
  background: #0d0d18;
  border-radius: 18px;
  padding: 16px;
  min-height: 320px;
}

.landscape-screen {
  display: flex;
  gap: 8px;
  min-height: 180px;
  padding: 10px;
  border-radius: 12px;
}

.split-left {
  flex: 1.2;
  display: flex;
  flex-direction: column;
}

.split-right {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.mock-chat {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mock-chat.compact {
  gap: 5px;
}

.mock-msg {
  padding: 8px 12px;
  border-radius: 12px;
  font-size: 12px;
  line-height: 1.5;
  max-width: 85%;
  animation: msgIn 0.3s ease;
}

@keyframes msgIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.mock-msg.user {
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  color: #fff;
  align-self: flex-end;
  border-bottom-right-radius: 4px;
}

.mock-msg.agent {
  background: #1e1e38;
  color: var(--text-primary);
  align-self: flex-start;
  border-bottom-left-radius: 4px;
}

.mock-msg.agent.small {
  font-size: 10px;
  padding: 5px 8px;
}

.mock-msg.system {
  background: rgba(108, 92, 231, 0.1);
  color: var(--gradient-end);
  align-self: center;
  font-size: 10px;
  text-align: center;
  border-radius: 8px;
}

.mock-msg.system.small {
  font-size: 9px;
  padding: 3px 6px;
}

.mock-msg.translate {
  background: rgba(0, 184, 148, 0.12);
  color: var(--gradient-accent);
  align-self: flex-start;
  border-bottom-left-radius: 4px;
}

.mock-msg.task-card {
  background: #1a1a30;
  border: 1px solid var(--border-color);
  align-self: flex-start;
  border-radius: 12px;
  max-width: 90%;
  width: 100%;
}

.task-progress {
  font-size: 11px;
  color: var(--gradient-start);
  margin-bottom: 6px;
  font-weight: 600;
}

.task-step {
  font-size: 11px;
  color: var(--text-muted);
  padding: 2px 0;
}

.task-step.done { color: var(--gradient-accent); }
.task-step.active { color: var(--gradient-start); font-weight: 600; }

.mock-camera-feed {
  flex: 1;
  background: linear-gradient(135deg, #0d1b2a, #1b2838);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.camera-overlay {
  color: var(--text-muted);
  font-size: 10px;
}

.detection-box {
  position: absolute;
  top: 8px;
  right: 8px;
  background: rgba(108, 92, 231, 0.8);
  color: #fff;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 9px;
}

.detection-box.warn {
  background: rgba(225, 112, 85, 0.8);
}

.mock-map {
  flex: 1;
  background: linear-gradient(135deg, #0d2818, #1a3828);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.map-route {
  font-size: 20px;
}

.map-stats {
  font-size: 10px;
  color: var(--gradient-accent);
  font-weight: 600;
}

/* ===== Architecture ===== */
.arch-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 48px;
}

.arch-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.arch-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  border-radius: 3px 3px 0 0;
}

.arch-app::before { background: linear-gradient(90deg, #6C5CE7, #a29bfe); }
.arch-ui::before { background: linear-gradient(90deg, #00B894, #55efc4); }
.arch-data::before { background: linear-gradient(90deg, #FDCB6E, #ffeaa7); }
.arch-perception::before { background: linear-gradient(90deg, #E17055, #fab1a0); }
.arch-agent::before { background: linear-gradient(90deg, #74B9FF, #a29bfe); }
.arch-domain::before { background: linear-gradient(90deg, #A29BFE, #6C5CE7); }

.arch-card:hover {
  transform: translateY(-2px);
  border-color: rgba(108, 92, 231, 0.3);
}

.arch-layer {
  font-size: 16px;
  font-weight: 700;
  font-family: 'SF Mono', 'Fira Code', monospace;
  margin-bottom: 8px;
  color: var(--gradient-start);
}

.arch-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.arch-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.flow-node {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 16px 24px;
  text-align: center;
  font-size: 14px;
  font-weight: 600;
}

.flow-node small {
  display: block;
  font-size: 11px;
  font-weight: 400;
  color: var(--text-muted);
  margin-top: 4px;
}

.flow-arrow {
  font-size: 24px;
  color: var(--gradient-start);
  font-weight: 300;
}

/* ===== Guide Steps ===== */
.steps {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}

.steps::before {
  content: '';
  position: absolute;
  left: 28px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--gradient-start), var(--gradient-end), transparent);
}

.step {
  display: flex;
  gap: 24px;
  padding: 24px 0;
  position: relative;
}

.step-number {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}

.step-content h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.step-content p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}

.guide-tips {
  max-width: 720px;
  margin: 48px auto 0;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.guide-tips h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 20px;
}

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

.tip {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.tip-icon {
  font-size: 20px;
  flex-shrink: 0;
}

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

/* ===== Download ===== */
.download {
  background: var(--bg-secondary);
}

.download-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.download-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  transition: var(--transition);
}

.download-card:hover {
  border-color: rgba(108, 92, 231, 0.3);
  transform: translateY(-2px);
}

.download-card.primary {
  border-color: rgba(108, 92, 231, 0.4);
  background: linear-gradient(180deg, rgba(108, 92, 231, 0.08), var(--bg-card));
}

.download-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  background: rgba(108, 92, 231, 0.12);
  color: var(--gradient-start);
}

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

.download-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.download-card p {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.download-version {
  display: inline-block;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.download-card .btn {
  margin-top: auto;
}

.system-req {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.system-req h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 20px;
}

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

.req-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: var(--text-secondary);
}

.req-label {
  padding: 4px 12px;
  border-radius: 6px;
  background: rgba(108, 92, 231, 0.12);
  color: var(--gradient-end);
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}

/* ===== Terms ===== */
.terms-content {
  max-width: 800px;
  margin: 0 auto;
}

.terms-block {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
  margin-bottom: 32px;
}

.terms-block h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
}

.terms-block h4 {
  font-size: 16px;
  font-weight: 600;
  margin: 24px 0 10px;
  color: var(--gradient-end);
}

.terms-block p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 10px;
}

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

.terms-block ul {
  padding-left: 0;
  margin-bottom: 10px;
}

.terms-block li {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  padding-left: 20px;
  position: relative;
  margin-bottom: 4px;
}

.terms-block li::before {
  content: '•';
  position: absolute;
  left: 4px;
  color: var(--gradient-start);
}

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

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

.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  transition: var(--transition);
}

.contact-card:hover {
  border-color: rgba(108, 92, 231, 0.3);
  transform: translateY(-2px);
}

.contact-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  background: rgba(108, 92, 231, 0.12);
  color: var(--gradient-start);
}

.contact-icon svg {
  width: 24px;
  height: 24px;
}

.contact-card h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.contact-card p {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.contact-note {
  font-size: 12px;
  color: var(--text-muted);
}

/* ===== Footer ===== */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border-color);
}

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

.footer-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 20px;
}

.footer-tagline {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 400;
  margin-left: 8px;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.footer-links a {
  font-size: 13px;
  color: var(--text-muted);
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--text-primary);
}

.footer-bottom p {
  font-size: 12px;
  color: var(--text-muted);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .showcase-visual {
    order: -1;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 72px 0;
  }

  .nav-links {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 10, 15, 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 a {
    font-size: 20px;
  }

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

  .nav-toggle.open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .nav-toggle.open span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.open span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .hero-title {
    font-size: 32px;
  }

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

  .hero-stats {
    gap: 32px;
  }

  .stat-number {
    font-size: 28px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

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

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

  .arch-flow {
    flex-direction: column;
    gap: 8px;
  }

  .flow-arrow {
    transform: rotate(90deg);
  }

  .download-cards {
    grid-template-columns: 1fr;
  }

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

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

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

  .showcase-tabs {
    gap: 6px;
  }

  .tab-btn {
    padding: 6px 14px;
    font-size: 13px;
  }

  .phone-mockup.landscape {
    max-width: 100%;
  }

  .terms-block {
    padding: 24px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

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

  .hero-badge {
    font-size: 12px;
  }

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

  .section-title {
    font-size: 24px;
  }
}