:root {
  /* 主色板 — 温暖科学风：深岩灰绿 + 珊瑚暖橙 */
  --color-primary: #1E3A3A;
  --color-primary-light: #2A4A4A;
  --color-accent: #D47454;
  --color-accent-dark: #B85E40;
  --color-accent-light: #E89878;
  --color-secondary: #7BA38B;

  /* 中性色 — 暖白底 + 深棕文字 */
  --color-white: #FFFFFF;
  --color-bg: #F6F2EC;
  --color-bg-alt: #EBE4DC;
  --color-border: #D9D0C6;
  --color-text: #171412;
  --color-text-secondary: #5E524A;
  --color-text-muted: #9E9086;

  /* 功能色 */
  --color-success: #7BA38B;
  --color-warning: #D4A76A;
  --color-error: #C4624A;

  /* 布局 */
  --max-width: 1200px;
  --header-height: 72px;
  --section-padding: 100px 0;
  --card-radius: 16px;
  --border-radius-sm: 8px;
  --border-radius: 12px;
  --border-radius-lg: 24px;

  /* 阴影 — 更暖更柔和 */
  --shadow-sm: 0 1px 3px rgba(23, 20, 18, 0.06);
  --shadow-md: 0 4px 16px rgba(23, 20, 18, 0.08);
  --shadow-lg: 0 12px 40px rgba(23, 20, 18, 0.10);
  --shadow-glow: 0 0 20px rgba(212, 116, 84, 0.15);

  /* 过渡 */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);

  /* 字体 */
  --font-display: 'Lora', Georgia, 'Times New Roman', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;
}


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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-white);
  overflow-x: hidden;
}

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

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--color-text);
}

h1 { font-size: clamp(2.2rem, 4.5vw, 3.8rem); }
h2 { font-size: clamp(1.8rem, 3.2vw, 2.8rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.6rem); }
h4 { font-size: clamp(1.1rem, 1.5vw, 1.3rem); }

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.8rem;
}

.section-title {
  margin-bottom: 1rem;
  color: var(--color-primary);
}

.section-desc {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  line-height: 1.7;
}

/* ===== Container ===== */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Header / Nav ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: var(--transition);
}

.site-header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-text {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.01em;
}

.logo-sub {
  font-size: 0.65rem;
  color: var(--color-text-muted);
  letter-spacing: 0.1em;
  font-weight: 400;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.main-nav a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: var(--transition-fast);
  position: relative;
  padding: 4px 0;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: var(--transition);
}

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

.main-nav a:hover::after,
.main-nav a.active::after {
  width: 100%;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 24px;
  background: linear-gradient(135deg, #1E3A3A 0%, #2A4A4A 50%, #1E3A3A 100%);
  color: var(--color-white) !important;
  border-radius: 100px;
  font-weight: 600;
  font-size: 0.85rem;
  transition: var(--transition);
}

.nav-cta:hover {
  background: var(--color-accent-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.nav-cta::after { display: none !important; }

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}

.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: linear-gradient(135deg, #1E3A3A 0%, #2A4A4A 50%, #1E3A3A 100%);
  border-radius: 2px;
  transition: var(--transition);
}

.mobile-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.mobile-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ===== Hero Section ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  background: linear-gradient(135deg, #1E3A3A 0%, #2A4A4A 50%, #1E3A3A 100%);
  overflow: hidden;
  padding-top: var(--header-height);
}




.hero-grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  padding: 80px 24px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  background: rgba(212, 116, 84, 0.12);
  border: 1px solid rgba(212, 116, 84, 0.25);
  border-radius: 100px;
  font-size: 0.8rem;
  color: var(--color-accent-light);
  margin-bottom: 24px;
}

.hero h1 {
  color: var(--color-white);
  margin-bottom: 1.2rem;
  font-weight: 700;
}

.hero h1 .highlight {
  background: linear-gradient(135deg, #D47454, #E89878);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.7);
  max-width: 560px;
  line-height: 1.8;
  margin-bottom: 36px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 100px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  font-family: inherit;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
}

.btn-primary:hover {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border: 1.5px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
  border-color: var(--color-white);
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-2px);
}

.btn-secondary {
  background: linear-gradient(135deg, #1E3A3A 0%, #2A4A4A 50%, #1E3A3A 100%);
  color: var(--color-white);
}

.btn-secondary:hover {
  background: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-white {
  background: var(--color-white);
  color: var(--color-primary);
}

.btn-white:hover {
  background: var(--color-bg-alt);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.btn-ghost:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-2px);
}

.hero-stats {
  display: flex;
  gap: 48px;
  margin-top: 60px;
  padding-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.hero-stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-white);
}

.hero-stat-label {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 4px;
}

/* ===== Section ===== */
.section { padding: var(--section-padding); }
.section-alt { background: var(--color-bg-alt); }

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

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

/* ===== Cards ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

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

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

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--border-radius-sm);
  background: rgba(212, 116, 84, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--color-accent);
}

.card h3, .card-premium h3 { margin-bottom: 10px; }

.card p, .card-premium p {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-accent);
  transition: var(--transition-fast);
}

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

/* ===== Feature Grid ===== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 32px;
}

.feature-item {
  text-align: center;
  padding: 40px 24px;
}

.feature-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-accent);
  opacity: 0.15;
  line-height: 1;
  margin-bottom: 8px;
  font-family: var(--font-mono);
}

.feature-item h4 { margin-bottom: 8px; }

.feature-item p {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ===== Steps ===== */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 40px;
  counter-reset: step;
}

.step {
  text-align: center;
  position: relative;
}

.step::before {
  counter-increment: step;
  content: counter(step);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-white);
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 auto 16px;
}

.step h4 { margin-bottom: 8px; }

.step p {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ===== CTA Section ===== */
.cta-section {
  background: linear-gradient(135deg, #1E3A3A 0%, #2A4A4A 50%, #1E3A3A 100%);
  padding: 100px 0;
  text-align: center;
}

.cta-section h2 {
  color: var(--color-white);
  margin-bottom: 16px;
}

.cta-section p {
  color: rgba(255, 255, 255, 0.7);
  max-width: 500px;
  margin: 0 auto 36px;
  font-size: 1.05rem;
  line-height: 1.7;
}

/* ===== Footer ===== */
.site-footer {
  background: linear-gradient(135deg, #1E3A3A 0%, #2A4A4A 50%, #1E3A3A 100%);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 60px 0 30px;
  color: rgba(255, 255, 255, 0.7);
}

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

.footer-brand .logo-text { color: var(--color-white); }

.footer-brand p {
  margin-top: 12px;
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 300px;
}

.footer-col h4 {
  color: var(--color-white);
  font-size: 0.9rem;
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
  padding: 6px 0;
  transition: var(--transition-fast);
}

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

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.4);
  flex-wrap: wrap;
  gap: 12px;
}

/* ===== Page Header (for inner pages) ===== */
.page-header {
  padding: calc(var(--header-height) + 80px) 0 60px;
  background: linear-gradient(135deg, #1E3A3A 0%, #2A4A4A 50%, #1E3A3A 100%);
  position: relative;
  overflow: hidden;
}

.page-header-grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}



.page-header-content { position: relative; z-index: 1; }

.page-header h1 {
  color: var(--color-white);
  margin-bottom: 12px;
}

.page-header p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 1.1rem;
  max-width: 500px;
}

/* ===== Breadcrumb ===== */
.breadcrumb {
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.4);
  margin-bottom: 16px;
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.6);
  transition: var(--transition-fast);
}

.breadcrumb a:hover { color: var(--color-accent-light); }

/* ===== Product Page ===== */
.product-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 80px 0;
}

.product-info h2 { margin-bottom: 16px; }
.product-info .section-desc { margin-bottom: 24px; }

.product-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 24px 0;
}

.product-features li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.product-features li::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
  flex-shrink: 0;
}

.product-visual {
  background: var(--color-bg-alt);
  border-radius: var(--border-radius-lg);
  padding: 40px;
  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-visual-inner {
  text-align: center;
}

.product-visual-inner .icon-large {
  font-size: 4rem;
  margin-bottom: 16px;
  color: var(--color-accent);
}

.product-visual-inner p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* ===== Disease Categories ===== */
.disease-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.disease-card {
  padding: 28px;
  border: 1px solid var(--color-border);
  border-radius: var(--card-radius);
  transition: var(--transition);
}

.disease-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-sm);
}

.disease-card h4 {
  margin-bottom: 8px;
  font-size: 1.05rem;
}

.disease-card p {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.disease-count {
  display: inline-block;
  padding: 2px 10px;
  background: rgba(212, 116, 84, 0.08);
  color: var(--color-accent);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 10px;
}

/* ===== Technology Page ===== */
.tech-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 80px 0;
}

.tech-visual {
  background: var(--color-bg-alt);
  border-radius: var(--border-radius-lg);
  min-height: 350px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.tech-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding: 60px 0;
}

.tech-metric {
  text-align: center;
  padding: 32px 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--card-radius);
}

.tech-metric-value {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 8px;
}

.tech-metric-label {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
}

/* ===== About Page ===== */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 80px 0;
}

.about-image {
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  min-height: 350px;
  background: var(--color-bg-alt);
}

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

.value-item {
  padding: 32px;
  border: 1px solid var(--color-border);
  border-radius: var(--card-radius);
  text-align: center;
  transition: var(--transition);
}

.value-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.value-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.value-item h4 { margin-bottom: 10px; }

.value-item p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ===== Contact Page ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  padding: 80px 0;
}

.contact-info-item {
  display: flex;
  gap: 16px;
  margin-bottom: 28px;
}

.contact-info-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--border-radius-sm);
  background: rgba(212, 116, 84, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-accent);
}

.contact-info-item h4 {
  margin-bottom: 4px;
  font-size: 0.95rem;
}

.contact-info-item p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

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

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
  display: block;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  font-family: inherit;
  font-size: 0.9rem;
  color: var(--color-text);
  transition: var(--transition-fast);
  background: var(--color-white);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(212, 116, 84, 0.1);
}

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

/* ===== Social ===== */
.social-links {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}

.social-link {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.6);
  transition: var(--transition);
  font-size: 0.85rem;
}

.social-link:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-light);
  background: rgba(212, 116, 84, 0.1);
}

/* ===== Spotlight ===== */
.spotlight-section {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-white) 100%);
}

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

.spotlight-visual {
  background: linear-gradient(135deg, #1E3A3A 0%, #2A4A4A 50%, #1E3A3A 100%);
  border-radius: var(--border-radius-lg);
  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.qr-placeholder {
  width: 150px;
  height: 150px;
  border: 2px dashed var(--color-border);
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-align: center;
  padding: 8px;
}

/* ===== Animations ===== */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

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

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .product-hero, .tech-showcase, .about-intro, .contact-grid, .spotlight-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

  .hero-stats { gap: 32px; flex-wrap: wrap; }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 60px 0;
    --header-height: 64px;
  }

  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    padding: 20px 24px;
    gap: 16px;
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
  }

  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .mobile-toggle { display: flex; }

  .hero-content { padding: 40px 24px; }
  .hero-stats { gap: 24px; }
  .hero-stat-value { font-size: 1.5rem; }

  .tech-metrics { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .card-grid { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .disease-grid { grid-template-columns: 1fr; }
  .product-features { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .feature-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .section-header { text-align: left; }
  .section-header .section-desc { margin: 0; }
}

/* ===== DNA Helix Animation ===== */
@keyframes dnaFloat {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  33% { transform: translateY(-10px) rotate(1deg); }
  66% { transform: translateY(5px) rotate(-1deg); }
}

.dna-helix-bg {
  position: absolute;
  pointer-events: none;
  opacity: 0.04;
  z-index: 0;
}

.dna-helix-bg svg {
  width: 300px;
  height: 600px;
  animation: dnaFloat 8s ease-in-out infinite;
}

/* ===== Particle Grid ===== */
.particle-grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.particle-grid::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(212, 116, 84, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(45, 212, 191, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 50% 80%, rgba(8, 145, 178, 0.06) 0%, transparent 50%);
}

/* ===== Gradient Border Cards (Premium) ===== */
.card-premium {
  position: relative;
  background: var(--color-white);
  border-radius: var(--card-radius);
  padding: 32px;
  border: none;
}

.card-premium::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--card-radius);
  padding: 1px;
  background: linear-gradient(135deg, rgba(212, 116, 84, 0.2), rgba(45, 212, 191, 0.2), rgba(212, 116, 84, 0.1));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  transition: var(--transition);
  pointer-events: none;
}

.card-premium:hover::before {
  background: linear-gradient(135deg, rgba(212, 116, 84, 0.6), rgba(45, 212, 191, 0.4), rgba(212, 116, 84, 0.25));
}

/* ===== Glow Effects ===== */
.glow-dot {
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  opacity: 0.3;
  z-index: 0;
}

.glow-dot-accent {
  background: radial-gradient(circle, rgba(212, 116, 84, 0.12), transparent 70%);
}

.glow-dot-secondary {
  background: radial-gradient(circle, rgba(45, 212, 191, 0.1), transparent 70%);
}

/* ===== Tech Divider ===== */
.tech-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 20px 0;
  opacity: 0.3;
}

.tech-divider::before,
.tech-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
}

.tech-divider-icon {
  color: var(--color-accent);
  font-size: 0.6rem;
}

/* ===== Section with Dark Background ===== */
.section-dark {
  background: linear-gradient(135deg, #1E3A3A 0%, #2A4A4A 50%, #1E3A3A 100%);
  color: var(--color-white);
}

.section-dark .section-title {
  color: var(--color-white);
}

.section-dark .section-desc {
  color: rgba(255, 255, 255, 0.6);
}

.section-dark .card {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.08);
}

.section-dark .card h3, .section-dark .card-premium h3 {
  color: var(--color-white);
}

.section-dark .card p, .section-dark .card-premium p {
  color: rgba(255, 255, 255, 0.6);
}

/* ===== Glass Card ===== */
.card-glass {
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--card-radius);
  padding: 32px;
  transition: var(--transition);
}

.card-glass:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(212, 116, 84, 0.25);
  transform: translateY(-4px);
}

.card-glass h3 {
  color: var(--color-white);
  margin-bottom: 10px;
}

.card-glass p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ===== Stat Card ===== */
.stat-card {
  text-align: center;
  padding: 32px 20px;
}

.stat-value {
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 8px;
  font-family: var(--font-mono);
}

.stat-label {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  font-weight: 500;
}

/* ===== Timeline ===== */
.timeline {
  position: relative;
  padding-left: 32px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 11px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-accent), var(--color-secondary), transparent);
}

.timeline-item {
  position: relative;
  padding-bottom: 40px;
  padding-left: 24px;
}

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

.timeline-item::before {
  content: '';
  position: absolute;
  left: -27px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-accent);
  border: 3px solid var(--color-bg);
  box-shadow: 0 0 0 2px var(--color-accent);
}

.timeline-year {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-accent);
  font-family: var(--font-mono);
  margin-bottom: 4px;
}

.timeline-item h4 {
  margin-bottom: 4px;
}

.timeline-item p {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ===== Morse/Code decorative line ===== */
.code-line {
  height: 2px;
  background: repeating-linear-gradient(
    90deg,
    var(--color-border) 0px,
    var(--color-border) 4px,
    transparent 4px,
    transparent 8px
  );
  margin: 12px 0;
  max-width: 200px;
}

/* ===== Section number ===== */
.section-number {
  font-family: var(--font-mono);
  font-size: 6rem;
  font-weight: 700;
  color: var(--color-primary);
  opacity: 0.04;
  position: absolute;
  right: 0;
  top: -20px;
  line-height: 1;
  pointer-events: none;
  user-select: none;
}

/* ===== Hover Image Zoom ===== */
.img-zoom {
  overflow: hidden;
  border-radius: var(--border-radius);
}

.img-zoom img {
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.img-zoom:hover img {
  transform: scale(1.05);
}

/* ===== Ping Pulsing Dot ===== */
.ping-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-success);
  position: relative;
}

.ping-dot::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: var(--color-success);
  animation: ping 2s cubic-bezier(0, 0, 0.2, 1) infinite;
}

@keyframes ping {
  75%, 100% {
    transform: scale(2.5);
    opacity: 0;
  }
}

/* ===== Stats Row ===== */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding: 60px 0;
}

@media (max-width: 768px) {
  .stats-row {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    padding: 40px 0;
  }
}

/* ===== Enhanced Animations ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.animate-fade-up {
  animation: fadeInUp 0.6s ease forwards;
}

.animate-scale {
  animation: fadeInScale 0.5s ease forwards;
}

.animate-slide-left {
  animation: slideInLeft 0.6s ease forwards;
}

.animate-slide-right {
  animation: slideInRight 0.6s ease forwards;
}

/* Animation delay utilities */
.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }
.delay-500 { animation-delay: 0.5s; }

/* ===== Smooth reveal with clip ===== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.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; }

/* ===== Featured Badge ===== */
.featured-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  background: linear-gradient(135deg, rgba(212, 116, 84, 0.1), rgba(45, 212, 191, 0.1));
  border: 1px solid rgba(212, 116, 84, 0.2);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-accent);
}

/* ===== Section Dark CTA ===== */
.cta-dark {
  background: linear-gradient(135deg, #1E3A3A 0%, #2A4A4A 50%, #1E3A3A 100%);
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-dark::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(212, 116, 84, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.cta-dark h2 {
  color: var(--color-white);
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.cta-dark p {
  color: rgba(255, 255, 255, 0.6);
  max-width: 500px;
  margin: 0 auto 36px;
  font-size: 1.05rem;
  position: relative;
  z-index: 1;
}

/* ===== Price Card ===== */
.price-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: 40px 32px;
  text-align: center;
  transition: var(--transition);
  position: relative;
}

.price-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.price-card.featured {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 1px var(--color-accent), var(--shadow-md);
}

.price-card.featured::before {
  content: '推荐';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 16px;
  background: var(--color-accent);
  color: var(--color-white);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
}

.price-amount {
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 16px 0;
  font-family: var(--font-mono);
}

.price-amount .currency {
  font-size: 1.2rem;
  vertical-align: super;
}

.price-period {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 24px;
}

.price-features {
  text-align: left;
  margin: 24px 0;
}

.price-features li {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 0;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border);
}

.price-features li:last-child {
  border-bottom: none;
}

.price-features li::before {
  content: '✓';
  color: var(--color-success);
  font-weight: 700;
}

/* ===== Tab System ===== */
.tabs {
  display: flex;
  gap: 4px;
  padding: 4px;
  background: var(--color-bg-alt);
  border-radius: 100px;
  margin-bottom: 40px;
  width: fit-content;
}

.tab-btn {
  padding: 10px 24px;
  border: none;
  background: transparent;
  border-radius: 100px;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: var(--transition);
}

.tab-btn:hover {
  color: var(--color-text);
}

.tab-btn.active {
  background: var(--color-white);
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* ===== Image/Content Split ===== */
.split-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

@media (max-width: 768px) {
  .split-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

/* ===== Micro Interaction: Link Arrow ===== */
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-weight: 600;
  color: var(--color-accent);
  transition: var(--transition-fast);
}

.link-arrow:hover {
  gap: 8px;
}

.link-arrow svg {
  width: 16px;
  height: 16px;
  transition: var(--transition-fast);
}

/* ===== Tag ===== */
.tag {
  display: inline-block;
  padding: 2px 10px;
  background: rgba(212, 116, 84, 0.08);
  color: var(--color-accent);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 10px;
}

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

@media (max-width: 480px) {
  .tabs {
    flex-direction: column;
    border-radius: var(--border-radius-sm);
    width: 100%;
  }
  
  .tab-btn {
    text-align: center;
  }
  
  .price-card {
    padding: 28px 20px;
  }
}

/* ===== Divider with dot ===== */
.divider-dot {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
}

.divider-dot::before,
.divider-dot::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

.divider-dot span {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-accent);
  flex-shrink: 0;
}

/* ===== Brand showcase ===== */
.brand-showcase {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
  padding: 40px 0;
  opacity: 0.4;
}

.brand-item {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  font-weight: 500;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

/* ===== FAQ Section ===== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
  padding: 0;
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  text-align: left;
  transition: var(--transition-fast);
  gap: 16px;
}

.faq-question:hover {
  color: var(--color-accent);
}

.faq-question .faq-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  transition: transform var(--transition);
  color: var(--color-text-muted);
}

.faq-question[aria-expanded="true"] .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  padding: 0;
  color: var(--color-text-secondary);
  line-height: 1.7;
  font-size: 0.95rem;
}

.faq-answer.open {
  max-height: 300px;
  padding: 0 0 20px;
}

/* ===== Sample Report ===== */
.report-preview {
  background: linear-gradient(135deg, #1E3A3A 0%, #2A4A4A 50%, #1E3A3A 100%);
  border-radius: var(--border-radius-lg);
  padding: 40px;
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.report-preview::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(212, 116, 84, 0.12), transparent);
  pointer-events: none;
}

.report-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
}

.report-header h4 {
  color: var(--color-white);
  font-size: 1rem;
}

.report-badge {
  padding: 4px 12px;
  background: rgba(45, 212, 191, 0.15);
  border: 1px solid rgba(45, 212, 191, 0.3);
  border-radius: 100px;
  font-size: 0.75rem;
  color: var(--color-secondary);
}

.report-body {
  position: relative;
  z-index: 1;
}

.report-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.report-label {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.6);
}

.report-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 600;
}

.report-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.dot-normal { background: var(--color-success); }
.dot-carrier { background: var(--color-warning); }
.dot-risk { background: var(--color-error); }

.report-footer {
  display: flex;
  justify-content: center;
  margin-top: 24px;
  position: relative;
  z-index: 1;
}

/* ===== Timeline ===== */
.timeline-compact {
  position: relative;
  padding-left: 24px;
}

.timeline-compact::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background: var(--color-border);
}

.timeline-compact-item {
  position: relative;
  padding-bottom: 24px;
  padding-left: 20px;
}

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

.timeline-compact-item::before {
  content: '';
  position: absolute;
  left: -21px;
  top: 6px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-accent);
  border: 2px solid var(--color-bg);
}

.timeline-compact-item h4 {
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.timeline-compact-item p {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* ===== Logo SVG favicon link ===== */
.favicon-link {
  display: none;
}

/* ===== Team compact ===== */
.team-compact {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}

.team-card {
  text-align: center;
  padding: 28px 16px;
}

.team-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--color-bg-alt);
  margin: 0 auto 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
}

.team-card h4 {
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.team-card p {
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

/* ===== Stats inline ===== */
.stats-inline {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
}

@media (max-width: 640px) {
  .stats-inline {
    gap: 24px;
  }
}

/* ===== Hero Background Zoom ===== */

@keyframes heroZoom {
  from { transform: scale(1); }
  to { transform: scale(1.08); }
}

/* ===== Pulse Glow on Primary Button ===== */
.btn-primary {
  position: relative;
  z-index: 1;
}

.btn-primary::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 100px;
  background: var(--color-accent);
  opacity: 0.2;
  z-index: -1;
  animation: btnPulse 2s ease-in-out infinite;
}

@keyframes btnPulse {
  0%, 100% { transform: scale(1); opacity: 0.2; }
  50% { transform: scale(1.06); opacity: 0.08; }
}

/* ===== Scroll Indicator ===== */
.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.3);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  animation: scrollBounce 2s ease-in-out infinite;
}

.scroll-indicator .scroll-line {
  width: 1px;
  height: 32px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.4), transparent);
}

@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

/* ===== Better Mobile Nav ===== */
@media (max-width: 768px) {
  .main-nav {
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.25s ease;
  }
  
  .main-nav a {
    font-size: 1.05rem;
    padding: 8px 0;
  }
  
  .main-nav .nav-cta {
    margin-top: 8px;
    text-align: center;
    justify-content: center;
  }
}

/* ===== Smooth card stagger on load ===== */
.card-premium, .card, .faq-item {
  will-change: transform, opacity;
}

/* ===== Better focus styles for accessibility ===== */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ===== Image loading fade ===== */
img {
  opacity: 1;
  transition: opacity 0.3s ease;
}

img[loading="lazy"] {
  opacity: 0;
}

img[loading="lazy"].loaded,
img[loading="lazy"][src] {
  opacity: 1;
}

/* ===== Print styles ===== */
@media print {
  .site-header, .site-footer, .hero-actions, .btn, .nav-cta,
  .scroll-indicator, .mobile-toggle, .contact-form {
    display: none !important;
  }
  
  .hero {
    min-height: auto;
    padding: 40px 0;
    background: #fff !important;
  }
  
  .hero h1, .hero p { color: #000 !important; }
  .hero-overlay, .hero-grid { display: none !important; }
  .hero-content { padding: 0; }
  
  .page-header { 
    background: #f5f5f5 !important;
    padding: 20px 0 !important;
  }
  .page-header h1 { color: #000 !important; }
  
  .section { padding: 20px 0 !important; }
}

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

.testimonial-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--card-radius);
  padding: 28px;
  position: relative;
  transition: var(--transition);
}

.testimonial-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.testimonial-card::before {
  content: '\201C';
  position: absolute;
  top: 12px;
  left: 20px;
  font-size: 3rem;
  line-height: 1;
  color: var(--color-accent);
  opacity: 0.15;
  font-family: Georgia, serif;
}

.testimonial-text {
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.testimonial-name {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-text);
}

.testimonial-role {
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

/* ===== Trust Bar ===== */
.trust-bar {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
  padding: 32px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  margin-top: 40px;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 12px;
}

.trust-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--border-radius-sm);
  background: rgba(212, 116, 84, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  flex-shrink: 0;
}

.trust-text {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.trust-text strong {
  display: block;
  font-size: 0.92rem;
  color: var(--color-text);
  font-weight: 600;
}

/* ===== 404 Page ===== */
.page-404 {
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px;
}

.page-404-inner {
  max-width: 500px;
}

.page-404-code {
  font-size: 6rem;
  font-weight: 700;
  color: var(--color-accent);
  opacity: 0.15;
  line-height: 1;
  margin-bottom: 16px;
  font-family: var(--font-mono);
}

.page-404 h1 {
  margin-bottom: 12px;
}

.page-404 p {
  color: var(--color-text-secondary);
  margin-bottom: 32px;
  line-height: 1.7;
}

/* ===== Stats Stripe ===== */
.stats-stripe {
  background: linear-gradient(135deg, #1E3A3A 0%, #2A4A4A 50%, #1E3A3A 100%);
  padding: 60px 0;
}

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

.stats-stripe-item {
  text-align: center;
}

.stats-stripe-value {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-accent-light);
  line-height: 1;
  margin-bottom: 6px;
  font-family: var(--font-mono);
}

.stats-stripe-label {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.5);
}

@media (max-width: 768px) {
  .stats-stripe-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
  
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  
  .trust-bar {
    gap: 24px;
  }
}

/* ===== Image Visual Fixes ===== */
.product-visual img,
.tech-visual img,
.about-image img {
  border-radius: var(--border-radius) !important;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-visual:hover img,
.tech-visual:hover img,
.about-image:hover img {
  transform: scale(1.02);
}

/* Product-visual with image: remove extra padding and bg */
.product-visual[style*="padding:0"] {
  background: var(--color-white) !important;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 450px;
}

/* Tech-visual with image */
.tech-visual[style*="padding:0"] {
  background: var(--color-white) !important;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 400px;
}

/* About-image with image */
.about-image[style*="padding:0"] {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 400px;
}

/* ===== Card image frame ===== */
.img-frame {
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  overflow: hidden;
  background: var(--color-white);
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.img-frame:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

/* ===== Remove orphaned hero animation ===== */
/* Remove the duplicate .hero-bg img at line 2059-2063 */

/* ===== Signature: Warm Accent Overlay ===== */
.section::before {
  display: none;
}

/* Warm gradient stripe on section-alt */
.section-alt {
  position: relative;
}

.section-alt::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--color-accent), var(--color-secondary), transparent);
  opacity: 0.3;
}

/* Card premium refined */
.card-premium {
  border-radius: var(--card-radius);
  transition: var(--transition);
}

.card-premium::before {
  display: none; /* Remove gradient borders */
}

.card-premium:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

/* Footer warm accent line */
.site-footer {
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-secondary), var(--color-accent));
  opacity: 0.2;
}

/* Button primary refinements - remove the pulse animation */
.btn-primary::after {
  display: none;
}

/* Page header warm accent */
.page-header {
  position: relative;
}

.page-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-secondary));
  opacity: 0.3;
}

/* Testimonial cards - update quote color */
.testimonial-card::before {
  color: var(--color-accent);
  opacity: 0.12;
}

/* Steps numbering - update color */
.step::before {
  background: var(--color-accent);
}

/* Disease count badge */
.disease-count {
  background: rgba(212, 116, 84, 0.08);
  color: var(--color-accent);
}

/* Trust icon */
.trust-icon {
  background: rgba(212, 116, 84, 0.08);
  color: var(--color-accent);
}

/* Social link hover */
.social-link:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-light);
  background: rgba(212, 116, 84, 0.08);
}

/* Link arrow color */
.link-arrow {
  color: var(--color-accent);
}

/* Contact info icon */
.contact-info-icon {
  background: rgba(212, 116, 84, 0.08);
  color: var(--color-accent);
}

/* Report badge in preview */
.report-badge {
  background: rgba(212, 116, 84, 0.12);
  border-color: rgba(212, 116, 84, 0.25);
}

/* Tab active */
.tab-btn.active {
  box-shadow: var(--shadow-sm);
}

/* Hero grid pattern - keep subtle */
.hero-grid {
  background-image: linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}