/* ==========================================================================
   FlyBit Accelerator - Modern Light Theme Style Sheet
   Luminous, Crisp, High-Tech Light Aesthetic, Zero-dependency, Mobile-First
   ========================================================================== */

:root {
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --bg-card: #ffffff;
  --bg-card-hover: #ffffff;
  --border-subtle: #e2e8f0;
  --border-highlight: rgba(2, 132, 199, 0.4);
  
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-dim: #94a3b8;
  
  --primary-gradient: linear-gradient(135deg, #0284c7 0%, #2563eb 100%);
  --accent-glow: rgba(37, 99, 235, 0.2);
  --purple-gradient: linear-gradient(135deg, #9333ea 0%, #4f46e5 100%);
  
  --badge-bg: #e0f2fe;
  --badge-border: #bae6fd;
  --badge-text: #0369a1;
  
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05), 0 1px 2px rgba(0, 0, 0, 0.03);
  --shadow-md: 0 4px 20px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 12px 35px rgba(15, 23, 42, 0.1);
  --shadow-glow: 0 8px 30px rgba(2, 132, 199, 0.15);
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 9999px;
  
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --max-width: 1200px;
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  position: relative;
  background: 
    radial-gradient(circle at 15% 12%, rgba(14, 165, 233, 0.08) 0%, transparent 45%),
    radial-gradient(circle at 85% 25%, rgba(99, 102, 241, 0.06) 0%, transparent 45%),
    var(--bg-primary);
}

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

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

/* Utilities */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

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

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  font-weight: 600;
  background: var(--badge-bg);
  border: 1px solid var(--badge-border);
  color: var(--badge-text);
  margin-bottom: 1.25rem;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background-color: #0284c7;
  border-radius: 50%;
  box-shadow: 0 0 8px rgba(2, 132, 199, 0.6);
}

.section {
  padding: 80px 0;
}

@media (min-width: 768px) {
  .section {
    padding: 100px 0;
  }
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 50px auto;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  line-height: 1.25;
  color: var(--text-main);
  text-wrap: balance;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: var(--transition);
  border: none;
  text-align: center;
  min-height: 48px;
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary-gradient);
  color: #ffffff;
  box-shadow: 0 4px 16px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(37, 99, 235, 0.35);
  color: #ffffff;
}

.btn-secondary {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background: #f8fafc;
  border-color: #cbd5e1;
  transform: translateY(-2px);
  color: #0284c7;
}

.btn-block {
  width: 100%;
}

/* Header & Nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(255, 255, 255, 0.85);
  border-bottom: 1px solid var(--border-subtle);
}

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

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-main);
}

.brand-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--primary-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
}

.main-nav {
  display: none;
}

@media (min-width: 860px) {
  .main-nav {
    display: flex;
    align-items: center;
    gap: 28px;
  }
  
  .nav-link {
    color: var(--text-muted);
    font-size: 0.95rem;
    font-weight: 600;
  }
  
  .nav-link:hover {
    color: #0284c7;
  }
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Hero Section */
.hero-section {
  padding: 60px 0 80px 0;
  text-align: center;
  position: relative;
}

@media (min-width: 768px) {
  .hero-section {
    padding: 80px 0 100px 0;
  }
}

/* 文字并行排版优化：确保各行文字并行对齐，杜绝单个字折行 */
.hero-headline {
  font-size: clamp(1.85rem, 4.2vw, 3.2rem);
  font-weight: 900;
  line-height: 1.36;
  letter-spacing: -0.02em;
  margin-bottom: 22px;
  max-width: 980px;
  margin-left: auto;
  margin-right: auto;
  color: var(--text-main);
  text-wrap: balance;
}

.headline-line {
  display: inline-block;
  white-space: nowrap;
}

@media (max-width: 520px) {
  .hero-headline {
    font-size: 1.65rem;
    line-height: 1.35;
  }
}

@media (max-width: 380px) {
  .hero-headline {
    font-size: 1.45rem;
  }
}

.hero-subtitle {
  font-size: clamp(1rem, 2.2vw, 1.2rem);
  color: var(--text-muted);
  max-width: 720px;
  margin: 0 auto 36px auto;
  line-height: 1.75;
}

.hero-cta {
  display: flex;
  flex-direction: column;
  gap: 16px;
  justify-content: center;
  align-items: center;
  margin-bottom: 48px;
}

@media (min-width: 520px) {
  .hero-cta {
    flex-direction: row;
  }
}

.hero-perks {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 20px 32px;
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 500;
}

.perk-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.perk-item svg {
  color: #0284c7;
}

/* Metric / Stats Banner */
.stats-banner {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 30px 20px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 950px;
  margin: 40px auto 0 auto;
  box-shadow: var(--shadow-md);
}

@media (min-width: 768px) {
  .stats-banner {
    grid-template-columns: repeat(4, 1fr);
    padding: 36px 30px;
  }
}

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

.stat-num {
  font-size: 2.2rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}

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

/* Core Advantages (3 Cards) */
.core-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 860px) {
  .core-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.core-card {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

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

.card-icon-wrap {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: #e0f2fe;
  border: 1px solid #bae6fd;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0284c7;
  margin-bottom: 24px;
}

.core-card:nth-child(2) .card-icon-wrap {
  background: #f3e8ff;
  border-color: #e9d5ff;
  color: #9333ea;
}

.core-card:nth-child(3) .card-icon-wrap {
  background: #dcfce7;
  border-color: #bbf7d0;
  color: #16a34a;
}

.card-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-main);
}

.card-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* Streaming & AI Cards */
.media-ai-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 768px) {
  .media-ai-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.media-ai-card {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.media-ai-card:hover {
  transform: translateY(-4px);
  border-color: #93c5fd;
  box-shadow: var(--shadow-lg);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 20px 0 24px 0;
}

.service-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  font-weight: 600;
  color: #334155;
}

.service-tag svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.card-features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.card-features-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.card-features-list li svg {
  color: #16a34a;
  margin-top: 3px;
  flex-shrink: 0;
}

/* Pricing Table / Grid */
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: stretch;
}

@media (min-width: 900px) {
  .pricing-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.pricing-card {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 40px 30px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  transition: var(--transition);
  box-shadow: var(--shadow-md);
}

.pricing-card.featured {
  border: 2px solid #0284c7;
  background: #ffffff;
  box-shadow: var(--shadow-glow);
  transform: scale(1.02);
}

@media (max-width: 899px) {
  .pricing-card.featured {
    transform: none;
  }
}

.featured-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary-gradient);
  color: #ffffff;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 4px 18px;
  border-radius: var(--radius-pill);
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.3);
}

.plan-name {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 8px;
  color: var(--text-main);
}

.plan-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
  min-height: 42px;
}

.plan-price-wrap {
  margin: 24px 0 28px 0;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-subtle);
}

.plan-currency {
  font-size: 1.3rem;
  font-weight: 700;
  vertical-align: top;
  color: #0284c7;
}

.plan-price {
  font-size: 3.2rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--text-main);
  line-height: 1;
}

.plan-period {
  font-size: 0.9rem;
  color: var(--text-dim);
}

.plan-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 32px;
  flex-grow: 1;
}

.plan-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  color: #334155;
}

.plan-features li svg {
  color: #0284c7;
  flex-shrink: 0;
}

/* User Testimonials */
.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 768px) {
  .testimonials-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.testimonial-card {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 30px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 20px;
  box-shadow: var(--shadow-md);
}

.stars {
  display: flex;
  gap: 4px;
  color: #f59e0b;
  margin-bottom: 12px;
  font-size: 1.1rem;
}

.testimonial-content {
  font-size: 0.95rem;
  line-height: 1.7;
  color: #334155;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--border-subtle);
}

.user-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: #e0f2fe;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  color: #0284c7;
  border: 1px solid #bae6fd;
}

.user-details h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-main);
}

.user-details span {
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* FAQ Accordion */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.faq-item[open] {
  border-color: #7dd3fc;
  box-shadow: var(--shadow-md);
}

.faq-summary {
  padding: 20px 24px;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  list-style: none;
  user-select: none;
}

.faq-summary::-webkit-details-marker {
  display: none;
}

.faq-arrow {
  width: 20px;
  height: 20px;
  transition: transform 0.25s ease;
  color: var(--text-dim);
  flex-shrink: 0;
}

.faq-item[open] .faq-arrow {
  transform: rotate(180deg);
  color: #0284c7;
}

.faq-answer {
  padding: 0 24px 22px 24px;
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* Bottom CTA Banner */
.cta-banner {
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
  border: 1px solid #bae6fd;
  border-radius: var(--radius-lg);
  padding: 60px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  margin: 40px auto;
}

.cta-banner h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
  color: var(--text-main);
}

.cta-banner p {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto 32px auto;
}

/* Footer (Dedicated 4 Links requirement) */
.site-footer {
  margin-top: auto;
  background: #f8fafc;
  border-top: 1px solid var(--border-subtle);
  padding: 48px 0 36px 0;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  text-align: center;
}

@media (min-width: 768px) {
  .footer-inner {
    flex-direction: row;
    text-align: left;
  }
}

.footer-brand-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

@media (min-width: 768px) {
  .footer-brand-wrap {
    align-items: flex-start;
  }
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--text-dim);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 24px 32px;
}

.footer-link {
  font-size: 0.95rem;
  color: var(--text-muted);
  font-weight: 600;
  position: relative;
  padding: 4px 0;
}

.footer-link:hover {
  color: #0284c7;
}

/* Secondary Pages (About, Terms, Privacy, Sitemap, Articles) */
.page-container {
  max-width: 880px;
  margin: 40px auto 80px auto;
  padding: 0 20px;
}

.doc-content {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 40px 30px;
  box-shadow: var(--shadow-md);
}

@media (min-width: 768px) {
  .doc-content {
    padding: 60px 50px;
  }
}

.doc-header {
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 24px;
  margin-bottom: 36px;
}

.doc-title {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--text-main);
  text-wrap: balance;
}

.doc-meta {
  font-size: 0.88rem;
  color: var(--text-dim);
}

.doc-body h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 32px 0 16px 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.doc-body h2::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 20px;
  background: var(--primary-gradient);
  border-radius: 2px;
}

.doc-body p {
  color: #334155;
  font-size: 0.98rem;
  line-height: 1.8;
  margin-bottom: 16px;
}

.doc-body ul, .doc-body ol {
  margin: 0 0 20px 24px;
  color: #334155;
  font-size: 0.98rem;
  line-height: 1.8;
}

.doc-body li {
  margin-bottom: 8px;
}

.info-box {
  background: #f0f9ff;
  border-left: 3px solid #0284c7;
  padding: 16px 20px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 24px 0;
  color: #0369a1;
  font-size: 0.94rem;
}

.warning-box {
  background: #fef2f2;
  border-left: 3px solid #ef4444;
  padding: 16px 20px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 24px 0;
  color: #991b1b;
  font-size: 0.94rem;
}

.sitemap-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: 24px;
}

@media (min-width: 600px) {
  .sitemap-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.sitemap-card {
  background: #f8fafc;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: var(--transition);
}

.sitemap-card:hover {
  border-color: #7dd3fc;
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.sitemap-card h3 {
  font-size: 1.15rem;
  margin-bottom: 8px;
  color: #0284c7;
}

.sitemap-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 14px;
}

/* ==========================================================================
   Article & Blog Specific Styles (SEO & Internal Links)
   ========================================================================== */

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-dim);
  margin-bottom: 20px;
}

.breadcrumb a {
  color: var(--text-muted);
  font-weight: 500;
}

.breadcrumb a:hover {
  color: #0284c7;
}

.breadcrumb span.sep {
  opacity: 0.5;
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 24px 0;
}

.article-tag {
  display: inline-block;
  padding: 4px 12px;
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-pill);
  font-size: 0.82rem;
  color: #0284c7;
  font-weight: 600;
}

.article-toc {
  background: #f0f9ff;
  border: 1px solid #bae6fd;
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin: 28px 0;
}

.article-toc-title {
  font-size: 1rem;
  font-weight: 700;
  color: #0369a1;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.article-toc ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.article-toc a {
  color: #334155;
  font-size: 0.94rem;
  font-weight: 500;
  transition: var(--transition);
}

.article-toc a:hover {
  color: #0284c7;
  text-decoration: underline;
}

.article-cta-box {
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
  border: 1px solid #bae6fd;
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  margin: 40px 0;
  text-align: center;
  box-shadow: var(--shadow-md);
}

.article-cta-box h3 {
  font-size: 1.45rem;
  font-weight: 800;
  margin-bottom: 10px;
  color: var(--text-main);
}

.article-cta-box p {
  color: var(--text-muted);
  font-size: 0.98rem;
  max-width: 600px;
  margin: 0 auto 20px auto;
}

.article-price-table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 0.94rem;
  background: #ffffff;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
}

.article-price-table th,
.article-price-table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
}

.article-price-table th {
  background: #f8fafc;
  color: var(--text-main);
  font-weight: 700;
}

.article-price-table td {
  color: #334155;
}

.article-price-table tr:hover td {
  background: #f0f9ff;
}

.related-articles {
  margin-top: 50px;
  padding-top: 36px;
  border-top: 1px solid var(--border-subtle);
}

.related-articles-title {
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 20px;
  color: var(--text-main);
}

.related-articles-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 640px) {
  .related-articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.related-card {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
}

.related-card:hover {
  border-color: #7dd3fc;
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.related-card h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
  line-height: 1.45;
}

.related-card:hover h4 {
  color: #0284c7;
}

.related-card span {
  font-size: 0.82rem;
  color: var(--text-dim);
}

.code-snippet {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.88rem;
  color: #0369a1;
  overflow-x: auto;
  margin: 16px 0 20px 0;
}