/* =============================
   安富华信息 — A100 品牌样式
   深邃科技感 · Dark Tech
   ============================= */

/* --- CSS Variables --- */
:root {
  --color-bg-primary: #0A1628;
  --color-bg-secondary: #0F1D3A;
  --color-bg-card: #122245;
  --color-bg-section: #0C1B30;
  --color-accent-blue: #2563EB;
  --color-accent-cyan: #06B6D4;
  --color-accent-gradient: linear-gradient(135deg, #2563EB 0%, #06B6D4 100%);
  --color-text-primary: #F1F5F9;
  --color-text-secondary: #94A3B8;
  --color-text-muted: #64748B;
  --color-border: rgba(37, 99, 235, 0.15);
  --color-border-hover: rgba(37, 99, 235, 0.4);
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Noto Sans SC', sans-serif;
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-card-hover: 0 8px 40px rgba(37, 99, 235, 0.15);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --max-width: 1200px;
  --nav-height: 72px;
}

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

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

body {
  font-family: var(--font-sans);
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  color: var(--color-accent-cyan);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--color-accent-blue);
}

img {
  max-width: 100%;
  height: auto;
}

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

.section-padding {
  padding: 100px 0;
}

/* --- Navigation --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: rgba(10, 22, 40, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: background 0.3s, box-shadow 0.3s;
}

.navbar.scrolled {
  background: rgba(10, 22, 40, 0.95);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: -0.5px;
}

.navbar-brand .brand-icon {
  width: 36px;
  height: 36px;
  background: var(--color-accent-gradient);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 800;
  color: white;
}

.navbar-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}



.lang-switch {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: 16px;
  padding: 0;
  border: none;
  border-radius: 0;
}

.lang-switch a {
  padding: 2px 6px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color 0.2s ease;
  text-decoration: none;
}

.lang-switch a:hover {
  color: var(--color-text-primary);
}

.lang-switch a.active {
  color: var(--color-accent-cyan);
}

.lang-switch span {
  color: var(--color-text-muted);
  font-size: 0.75rem;
  opacity: 0.4;
}



.navbar-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 8px;
}

/* --- Hero Section --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: var(--nav-height);
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(ellipse 60% 50% at 20% 50%, rgba(37, 99, 235, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 80% 30%, rgba(6, 182, 212, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse 40% 30% at 50% 80%, rgba(37, 99, 235, 0.06) 0%, transparent 50%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 600px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.2);
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-accent-cyan);
  margin-bottom: 24px;
}

.hero-badge .dot {
  width: 6px;
  height: 6px;
  background: var(--color-accent-cyan);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 16px;
}

.hero-title .highlight {
  background: var(--color-accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 520px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
}

.btn-primary {
  background: var(--color-accent-gradient);
  color: white;
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(37, 99, 235, 0.4);
  color: white;
}

.btn-outline {
  background: transparent;
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}

.btn-outline:hover {
  border-color: var(--color-accent-blue);
  background: rgba(37, 99, 235, 0.08);
  color: var(--color-text-primary);
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.hero-device-wrapper {
  position: relative;
  width: 100%;
  max-width: 380px;
}

.hero-device {
  width: 100%;
  display: block;
}

.hero-glow {
  position: absolute;
  width: 120%;
  height: 120%;
  top: -10%;
  left: -10%;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.2) 0%, transparent 70%);
  animation: glow-float 4s ease-in-out infinite;
  z-index: 0;
}

@keyframes glow-float {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.05); }
}

/* --- Floating Stats --- */
.floating-stats {
  position: absolute;
  background: rgba(15, 29, 58, 0.9);
  backdrop-filter: blur(8px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 12px 18px;
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  z-index: 2;
  animation: float 6s ease-in-out infinite;
}

.floating-stats .stat-number {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-accent-cyan);
}

.floating-stats.stat-1 {
  top: 10%;
  right: -10%;
  animation-delay: 0s;
}

.floating-stats.stat-2 {
  bottom: 15%;
  left: -15%;
  animation-delay: 2s;
}

.floating-stats.stat-3 {
  top: 50%;
  right: -20%;
  animation-delay: 4s;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* --- Section Headers --- */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-header.left {
  text-align: left;
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-accent-cyan);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.section-header.left .section-desc {
  margin: 0;
}

/* --- Stats Strip --- */
.stats-strip {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--color-border);
}

.stat-item {
  background: var(--color-bg-secondary);
  text-align: center;
  padding: 48px 24px;
}

.stat-item .stat-number-large {
  font-size: 2.5rem;
  font-weight: 800;
  background: var(--color-accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}

.stat-item .stat-label {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

/* --- Advantage Cards --- */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.advantage-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 36px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.advantage-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-accent-gradient);
  opacity: 0;
  transition: opacity 0.3s;
}

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

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

.advantage-number {
  font-size: 3rem;
  font-weight: 800;
  color: rgba(37, 99, 235, 0.15);
  margin-bottom: 8px;
  line-height: 1;
}

.advantage-card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.advantage-card p {
  color: var(--color-text-secondary);
  font-size: 0.92rem;
  line-height: 1.7;
}

/* --- Product Showcase --- */
.product-showcase {
  background: var(--color-bg-section);
}

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

.product-visual {
  display: flex;
  justify-content: center;
}

.product-device-frame {
  max-width: 420px;
  position: relative;
}

.product-device-frame img {
  border-radius: var(--radius-md);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
}

.product-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(37, 99, 235, 0.1);
  border: 1px solid rgba(37, 99, 235, 0.2);
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-accent-blue);
  margin-bottom: 16px;
}

.product-info h2 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.product-sub {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  font-weight: 500;
  margin-bottom: 20px;
}

.product-desc {
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 28px;
}

.product-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

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

.product-feature .icon {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  background: rgba(6, 182, 212, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 0.8rem;
}

.product-feature .text {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
}

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

/* --- Solutions / Scenarios --- */
.scenarios-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.scenario-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 36px 32px;
  transition: all 0.3s ease;
}

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

.scenario-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(6, 182, 212, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 20px;
}

.scenario-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.scenario-card .scenario-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-accent-cyan);
  background: rgba(6, 182, 212, 0.08);
  padding: 2px 8px;
  border-radius: 4px;
  margin-bottom: 12px;
}

.scenario-card p {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 16px;
}

.scenario-stats {
  display: flex;
  gap: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
}

.scenario-stats span {
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

.scenario-stats .highlight-value {
  color: var(--color-accent-cyan);
  font-weight: 600;
}

/* --- Team Section --- */
.team-section {
  background: var(--color-bg-section);
}

.team-intro {
  max-width: 700px;
  margin: 0 auto 48px;
  text-align: center;
  color: var(--color-text-secondary);
  font-size: 1rem;
  line-height: 1.8;
}

.team-caps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.team-cap-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 28px 24px;
  text-align: center;
}

.team-cap-item .icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.team-cap-item h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.team-cap-item p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* --- CTA Section --- */
.cta-section {
  padding: 100px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse 50% 50% at 50% 50%, rgba(37, 99, 235, 0.1) 0%, transparent 60%);
  pointer-events: none;
}

.cta-section .container {
  position: relative;
  z-index: 1;
}

.cta-section h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 16px;
}

.cta-section p {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  max-width: 520px;
  margin: 0 auto 36px;
}

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

/* --- Footer --- */
.footer {
  border-top: 1px solid var(--color-border);
  padding: 48px 0 32px;
}

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

.footer-brand h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.footer-brand p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul a {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.footer-col ul a:hover {
  color: var(--color-accent-cyan);
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
}

.footer-bottom-left p {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.footer-bottom-left {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.footer-bottom-links {
  display: flex;
  gap: 16px;
  flex-shrink: 0;
}

.footer-bottom-links a {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.footer-disclaimer {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  opacity: 0.7;
}

/* --- Scroll Animation --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease-out;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* --- Mobile --- */
/* =============================
   响应式设计
   ============================= */

/* --- 平板横屏 / 小桌面 ≤1024px --- */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-content {
    max-width: 100%;
  }

  .hero-subtitle {
    margin: 0 auto 36px;
  }

  .hero-actions {
    justify-content: center;
  }

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

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

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

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

  .scene-inner {
    grid-template-columns: 1fr !important;
    gap: 40px !important;
  }

  .scene-inner.reverse {
    direction: ltr !important;
  }

  .scene-inner.reverse > * {
    direction: ltr !important;
  }

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

  .partner-types {
    grid-template-columns: 1fr;
  }

  .partner-cta-grid {
    grid-template-columns: 1fr;
  }

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

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

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

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

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

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

/* --- 平板竖屏 / 大手机 ≤768px --- */
@media (max-width: 768px) {
  /* 导航 */
  .navbar-links {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(10, 22, 40, 0.98);
    flex-direction: column;
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--color-border);
  }

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

  .lang-switch {
    margin-left: 0;
  }

  .navbar-toggle {
    display: block;
  }

  /* Hero */
  .hero-device-wrapper {
    max-width: 280px;
  }

  .floating-stats {
    display: none;
  }

  .hero-title {
    font-size: clamp(1.8rem, 7vw, 2.5rem);
  }

  /* 数据统计 */
  .stat-item {
    padding: 28px 16px;
  }

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

  /* 间距 */
  .section-padding {
    padding: 50px 0;
  }

  .section-title {
    font-size: clamp(1.3rem, 5vw, 1.6rem);
  }

  .scene-block {
    padding: 50px 0;
  }

  /* 卡片 */
  .advantage-card {
    padding: 24px 20px;
  }

  .scenario-card {
    padding: 24px 20px;
  }

  .comparison-col {
    padding: 24px 20px;
  }

  /* 团队 */
  .team-caps {
    grid-template-columns: 1fr 1fr;
  }

  .team-cap-item {
    padding: 20px 16px;
  }

  /* CTA 按钮全宽 */
  .hero-actions .btn,
  .cta-actions .btn {
    width: 100%;
    justify-content: center;
  }

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

  .footer {
    padding: 36px 0 24px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 8px;
  }

  /* 时间线 */
  .feature-timeline {
    padding-left: 24px;
  }

  /* 路线图 */
  .timeline-roadmap {
    padding-left: 28px;
  }

  /* 联系表单 */
  .contact-form {
    padding: 24px 20px;
  }

  .contact-info-col .info-card {
    padding: 24px 20px;
  }

  /* 场景卡片 */
  .scene-visual-card {
    padding: 24px 20px;
  }
}

/* --- 小手机 ≤480px --- */
@media (max-width: 480px) {
  .section-padding {
    padding: 40px 0;
  }

  .hero-title {
    font-size: clamp(1.5rem, 8vw, 1.8rem);
    letter-spacing: -0.5px;
  }

  .hero-subtitle {
    font-size: 0.92rem;
  }

  .hero-badge {
    font-size: 0.72rem;
    padding: 4px 12px;
  }

  .btn {
    padding: 12px 24px;
    font-size: 0.88rem;
  }

  .section-title {
    font-size: 1.2rem;
  }

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

  .stat-item .stat-number-large {
    font-size: 1.6rem;
  }

  .stat-item .stat-label {
    font-size: 0.78rem;
  }

  .stat-item {
    padding: 22px 12px;
  }

  .advantage-number {
    font-size: 2.2rem;
  }

  .advantage-card h3,
  .scenario-card h3,
  .product-info h2 {
    font-size: 1.05rem;
  }

  .advantage-card p,
  .scenario-card p,
  .product-desc {
    font-size: 0.85rem;
  }

  .advantage-card {
    padding: 20px 16px;
  }

  .scenario-card {
    padding: 20px 16px;
  }

  .product-feature .text {
    font-size: 0.82rem;
  }

  .team-caps {
    grid-template-columns: 1fr;
  }

  .team-cap-item {
    padding: 16px 12px;
  }

  .team-cap-item h4 {
    font-size: 0.92rem;
  }

  .team-cap-item p {
    font-size: 0.8rem;
  }

  .scene-text h2 {
    font-size: 1.2rem;
  }

  .scene-text p,
  .scene-text ul li {
    font-size: 0.85rem;
  }

  .metric-num {
    font-size: 1.4rem;
  }

  .more-scenes-grid {
    grid-template-columns: 1fr;
  }

  .spec-item {
    padding: 16px 20px;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .spec-value {
    text-align: left;
  }

  .scene-screenshot {
    max-height: 320px;
  }

  .contact-form h3 {
    font-size: 1rem;
  }

  .page-hero h1 {
    font-size: clamp(1.5rem, 6vw, 2rem);
  }

  .roadmap-item {
    margin-bottom: 32px;
  }

  .roadmap-item h3 {
    font-size: 0.95rem;
  }

  .roadmap-item p {
    font-size: 0.82rem;
  }

  .footer-brand p {
    font-size: 0.8rem;
  }
}

/* =============================
   页面转场动画
   ============================= */

/* 页面进入：淡入 + 微上移 */
body {
  animation: pageFadeIn 0.35s ease-out;
}

@keyframes pageFadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 页面离开：淡出 + 微下移 */
body.page-leaving {
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity 0.18s ease, transform 0.18s ease;
  pointer-events: none; /* 防止转场过程中误点 */
}