/* ==========================================================================
   肥猫云机场 - 浅色科技风 Design System & Stylesheet (专业无Emoji版)
   ========================================================================== */

:root {
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --accent: #06b6d4;
  --accent-light: #ecfeff;
  --gradient-primary: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%);
  --gradient-card-header: linear-gradient(135deg, #2563eb 0%, #3b82f6 100%);
  --gradient-badge: linear-gradient(135deg, #3b82f6 0%, #06b6d4 100%);
  --bg-main: #ffffff;
  --bg-card: #ffffff;
  --bg-alt: #f8fafc;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --border-color: #e2e8f0;
  --border-highlight: #cbd5e1;
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 12px 32px rgba(37, 99, 235, 0.08);
  --shadow-hover: 0 16px 36px rgba(37, 99, 235, 0.14);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --transition-normal: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base resets & typography */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: 'Noto Sans SC', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-alt);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

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

/* Layout Utilities */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section-padding {
  padding: 5rem 0;
}

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

.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: var(--transition-normal);
  cursor: pointer;
  border: none;
  text-align: center;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(37, 99, 235, 0.4);
  color: #ffffff;
}

.btn-outline {
  background: #ffffff;
  color: var(--primary);
  border: 1.5px solid #cbd5e1;
}

.btn-outline:hover {
  background: var(--primary-light);
  border-color: var(--primary);
  transform: translateY(-2px);
}

.btn-card {
  width: 100%;
  padding: 0.75rem 1.5rem;
  border: 1.5px solid var(--primary);
  background: transparent;
  color: var(--primary);
  border-radius: var(--radius-full);
  font-weight: 600;
  transition: var(--transition-normal);
}

.btn-card:hover, .btn-card.btn-popular {
  background: var(--primary);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  transition: var(--transition-normal);
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-main);
}

.brand-icon {
  width: 36px;
  height: 36px;
  background: var(--gradient-primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.2);
}

.brand-icon svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  font-weight: 500;
  color: var(--text-muted);
  transition: var(--transition-normal);
}

.nav-link:hover {
  color: var(--primary);
}

.mobile-menu-toggle {
  display: none;
  font-size: 1.5rem;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-main);
}

/* Hero Section */
.hero {
  padding-top: 130px;
  padding-bottom: 60px;
  background: radial-gradient(circle at 50% 20%, rgba(224, 242, 254, 0.7) 0%, rgba(248, 250, 252, 0) 70%);
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background: #ffffff;
  border: 1px solid rgba(6, 182, 212, 0.3);
  color: #0284c7;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  box-shadow: 0 2px 6px rgba(0,0,0,0.03);
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.hero-title {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
}

.hero-desc {
  font-size: 1.125rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.hero-stats {
  display: flex;
  gap: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
}

.stat-item h4 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
}

.stat-item p {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* Hero Graphic & Floating Elements */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-card-preview {
  width: 100%;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
  position: relative;
  z-index: 2;
  transition: var(--transition-normal);
}

.hero-card-preview:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.hero-illustration-img {
  width: 100%;
  border-radius: var(--radius-md);
  object-fit: cover;
}

/* Floating Pills / Badges */
.floating-badge {
  position: absolute;
  padding: 0.75rem 1.25rem;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border: 1px solid #cbd5e1;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 25px rgba(15, 23, 42, 0.08);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
  font-size: 0.875rem;
  z-index: 3;
  animation: float 4s ease-in-out infinite;
}

.badge-icon-box {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
}

.badge-1 {
  top: 10%;
  left: -5%;
}

.badge-2 {
  bottom: 12%;
  right: -5%;
  animation-delay: 2s;
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-12px); }
}

/* Continuous Sliding Ticker Bar (统一浅色科技风跑马灯) */
.marquee-container {
  background: linear-gradient(135deg, #eff6ff 0%, #e0f2fe 100%);
  color: #0f172a;
  padding: 0.85rem 0;
  overflow: hidden;
  position: relative;
  white-space: nowrap;
  border-top: 1px solid #dbeafe;
  border-bottom: 1px solid #dbeafe;
}

.marquee-track {
  display: inline-flex;
  gap: 2rem;
  animation: marquee 30s linear infinite;
}

.marquee-track:hover {
  animation-play-state: paused;
}

.marquee-item {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.875rem;
  font-weight: 600;
  background: #ffffff;
  color: #1e293b;
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  border: 1px solid #cbd5e1;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 6px #10b981;
}

.ping-tag {
  color: #059669;
  font-family: monospace;
  font-weight: 700;
}

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

/* Section Header */
.section-header {
  margin-bottom: 3.5rem;
}

.section-subtitle {
  color: var(--primary);
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.section-description {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 680px;
  margin: 0 auto;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: var(--bg-card);
  padding: 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-normal);
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: bold;
  margin-bottom: 1.25rem;
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.feature-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Pricing Grid (严格匹配用户上传图片) */
.pricing-section {
  background: linear-gradient(180deg, #ffffff 0%, #f1f5f9 100%);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition-normal);
  position: relative;
}

.pricing-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}

.pricing-card.popular-card {
  border: 2px solid var(--primary);
  transform: scale(1.03);
}

.pricing-card.popular-card:hover {
  transform: scale(1.03) translateY(-8px);
}

.pricing-header {
  background: var(--gradient-card-header);
  color: #ffffff;
  padding: 1.75rem 1.5rem;
  text-align: center;
}

.pricing-price {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 0.25rem;
}

.pricing-price span {
  font-size: 1rem;
  font-weight: 400;
  opacity: 0.9;
}

.pricing-plan-name {
  font-size: 1.15rem;
  font-weight: 600;
  opacity: 0.95;
}

.pricing-body {
  padding: 2rem 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.pricing-features {
  margin-bottom: 2rem;
}

.pricing-feature-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  font-size: 0.95rem;
  color: #334155;
}

.check-icon {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 800;
  flex-shrink: 0;
}

/* Target Audience Grid */
.audience-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.audience-card {
  background: var(--bg-card);
  padding: 1.75rem 1.5rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  text-align: center;
  transition: var(--transition-normal);
}

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

.audience-tag-box {
  width: 48px;
  height: 48px;
  margin: 0 auto 1rem;
  border-radius: 12px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 0.9rem;
}

/* Tutorial Section with Tabs */
.tutorial-tabs-header {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.tutorial-tab-btn {
  padding: 0.75rem 1.75rem;
  background: var(--bg-card);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-full);
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition-normal);
}

.tutorial-tab-btn.active, .tutorial-tab-btn:hover {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.2);
}

.tutorial-content-pane {
  display: none;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
}

.tutorial-content-pane.active {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
}

.tutorial-steps {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.step-item {
  display: flex;
  gap: 1rem;
}

.step-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.step-info h4 {
  font-size: 1.05rem;
  margin-bottom: 0.25rem;
}

.step-info p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Reviews Carousel Grid */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.75rem;
}

.review-card {
  background: var(--bg-card);
  padding: 1.75rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.review-stars {
  color: #f59e0b;
  margin-bottom: 0.75rem;
  letter-spacing: 2px;
}

.review-text {
  font-size: 0.95rem;
  color: var(--text-main);
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.author-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
}

.author-name {
  font-weight: 600;
  font-size: 0.95rem;
}

.author-role {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* FAQ Accordion */
.faq-container {
  max-width: 840px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition-normal);
}

.faq-question {
  padding: 1.25rem 1.5rem;
  font-weight: 700;
  font-size: 1.05rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  user-select: none;
}

.faq-toggle-icon {
  font-size: 0.9rem;
  transition: transform 0.3s;
  color: var(--primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
  padding: 0 1.5rem;
}

.faq-item.open .faq-answer {
  max-height: 300px;
  padding: 0 1.5rem 1.25rem 1.5rem;
}

.faq-item.open .faq-toggle-icon {
  transform: rotate(180deg);
}

/* Articles Section Grid */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
}

.article-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.article-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.article-card-header {
  height: 140px;
  background: linear-gradient(135deg, #eff6ff 0%, #e0f2fe 100%);
  border-bottom: 1px solid #dbeafe;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 1rem;
  font-weight: 700;
  position: relative;
}

.article-category-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  padding: 0.25rem 0.75rem;
  background: #ffffff;
  color: var(--primary);
  border: 1px solid #bfdbfe;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
}

.article-card-body {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.article-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 0.75rem;
  color: var(--text-main);
}

.article-card-title a:hover {
  color: var(--primary);
}

.article-card-excerpt {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

.article-card-footer {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-light);
  border-top: 1px solid var(--border-color);
  padding-top: 0.75rem;
}

/* Article Detail Page Specific Styles */
.article-detail-container {
  max-width: 860px;
  margin: 0 auto;
  background: var(--bg-card);
  padding: 3rem 2.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.breadcrumb {
  display: flex;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

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

.article-header {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.article-h1 {
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 1rem;
}

.article-meta-info {
  display: flex;
  gap: 1.5rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.article-body-content {
  font-size: 1.05rem;
  line-height: 1.8;
  color: #334155;
}

.article-body-content h2 {
  font-size: 1.6rem;
  font-weight: 700;
  margin: 2.25rem 0 1rem;
  color: var(--text-main);
  border-left: 4px solid var(--primary);
  padding-left: 0.75rem;
}

.article-body-content h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 1.75rem 0 0.75rem;
  color: var(--text-main);
}

.article-body-content p {
  margin-bottom: 1.25rem;
}

.article-body-content ul, .article-body-content ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
}

.article-body-content li {
  margin-bottom: 0.5rem;
}

.article-callout {
  background: var(--primary-light);
  border-left: 4px solid var(--primary);
  padding: 1.25rem 1.5rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 1.75rem 0;
}

.article-cta-box {
  background: linear-gradient(135deg, #eff6ff 0%, #ecfeff 100%);
  border: 1px solid #bfdbfe;
  border-radius: var(--radius-md);
  padding: 2rem;
  text-align: center;
  margin: 2.5rem 0;
}

.related-posts-section {
  margin-top: 3.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

/* Light Tech Footer (全站统一浅色系) */
footer {
  background: #ffffff;
  color: #64748b;
  padding: 4rem 0 2rem;
  margin-top: 5rem;
  border-top: 1px solid #e2e8f0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand h3 {
  color: #0f172a;
  font-size: 1.35rem;
  margin-bottom: 1rem;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.6;
}

.footer-col h4 {
  color: #0f172a;
  font-size: 1.05rem;
  margin-bottom: 1.25rem;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  font-size: 0.9rem;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid #e2e8f0;
  font-size: 0.85rem;
}

/* Responsive Styles */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-actions, .hero-stats {
    justify-content: center;
  }
  .hero-title {
    font-size: 2.5rem;
  }
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
  }
  .pricing-card.popular-card {
    transform: none;
  }
  .tutorial-content-pane.active {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .mobile-menu-toggle {
    display: block;
  }
  .nav-links.mobile-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: white;
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
    border-bottom: 1px solid var(--border-color);
  }
  .hero-title {
    font-size: 2rem;
  }
  .section-title {
    font-size: 1.75rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}