/* ==========================================================================
   Runway VPN - runwayvpn.click
   Design Style: Dynamic Aerodynamic / Velocity Streamline (气动流体力学极速风)
   Zero external dependencies | Pure Native CSS | Mobile 4G < 1000ms
   ========================================================================== */

:root {
  --primary: #E63946;
  --primary-hover: #D62828;
  --secondary: #1D3557;
  --accent: #457B9D;
  --accent-light: #A8DADC;
  --dark: #0F172A;
  --slate-600: #475569;
  --slate-400: #94A3B8;
  --slate-200: #E2E8F0;
  --bg-light: #F8FAFC;
  --surface: #FFFFFF;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 8px 24px rgba(29, 53, 87, 0.08);
  --shadow-lg: 0 16px 36px rgba(230, 57, 70, 0.12);
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background-color: var(--bg-light);
  color: var(--dark);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header & Velocity Runway Nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 2px solid var(--slate-200);
}

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

.site-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-svg {
  height: 38px;
  width: auto;
}

/* Desktop Navigation */
.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.site-nav a {
  font-size: 15px;
  font-weight: 600;
  color: var(--slate-600);
  transition: var(--transition);
  position: relative;
  padding: 8px 0;
}

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

.site-nav a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: var(--transition);
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 42px;
  height: 42px;
  background: var(--bg-light);
  border: 1.5px solid var(--slate-200);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 8px;
  gap: 5px;
  transition: var(--transition);
}

.mobile-menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--dark);
  border-radius: 2px;
  transition: var(--transition);
}

.mobile-menu-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.mobile-menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Navigation Dropdown */
.mobile-nav-panel {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(14px);
  border-bottom: 3px solid var(--primary);
  box-shadow: 0 16px 36px rgba(15, 23, 42, 0.12);
  padding: 20px 24px 28px;
  flex-direction: column;
  gap: 16px;
  z-index: 100;
  animation: slideDown 0.25s ease-out;
}

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

.mobile-nav-panel.is-open {
  display: flex;
}

.mobile-nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 0;
  padding: 0;
}

.mobile-nav-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  font-size: 15px;
  font-weight: 600;
  color: var(--dark);
  border-radius: var(--radius-sm);
  background: var(--bg-light);
  border: 1px solid var(--slate-200);
  transition: var(--transition);
}

.mobile-nav-links a:hover,
.mobile-nav-links a:active {
  background: rgba(230, 57, 70, 0.08);
  border-color: var(--primary);
  color: var(--primary);
}

.mobile-nav-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-top: 14px;
  border-top: 1px dashed var(--slate-200);
}

.mobile-nav-actions .btn {
  width: 100%;
  min-height: 46px;
}

/* Button Component System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  cursor: pointer;
  border: 1px solid transparent;
  text-align: center;
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary);
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(230, 57, 70, 0.32);
}

.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(230, 57, 70, 0.42);
}

.btn-recommend {
  background: #FFFFFF;
  color: var(--secondary);
  border: 1.5px solid var(--secondary);
}

.btn-recommend:hover {
  background: var(--secondary);
  color: #FFFFFF;
  transform: translateY(-2px);
}

.btn-outline {
  border-color: var(--slate-200);
  background: #FFFFFF;
  color: var(--dark);
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* Hero Section: Aerodynamic Runway */
.hero-streamline {
  padding: 72px 0 64px;
  background: linear-gradient(175deg, #FFFFFF 0%, #F1F5F9 100%);
  position: relative;
  overflow: hidden;
}

.hero-streamline::before {
  content: "";
  position: absolute;
  top: 0;
  right: -5%;
  width: 55%;
  height: 100%;
  background: repeating-linear-gradient(45deg, rgba(69, 123, 157, 0.03) 0, rgba(69, 123, 157, 0.03) 2px, transparent 2px, transparent 18px);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(230, 57, 70, 0.08);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  border-radius: 99px;
  margin-bottom: 20px;
  border: 1px solid rgba(230, 57, 70, 0.2);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
  box-shadow: 0 0 0 rgba(230, 57, 70, 0.6);
  animation: pulse-ring 1.8s infinite;
}

@keyframes pulse-ring {
  0% { box-shadow: 0 0 0 0 rgba(230, 57, 70, 0.6); }
  70% { box-shadow: 0 0 0 8px rgba(230, 57, 70, 0); }
  100% { box-shadow: 0 0 0 0 rgba(230, 57, 70, 0); }
}

.hero-title {
  font-size: 46px;
  line-height: 1.2;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.hero-title span {
  color: var(--primary);
  position: relative;
  display: inline-block;
}

.hero-title span::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 4px;
  width: 100%;
  height: 8px;
  background: rgba(230, 57, 70, 0.15);
  z-index: -1;
  transform: skewX(-12deg);
}

.hero-desc {
  font-size: 18px;
  color: var(--slate-600);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 580px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-bottom: 32px;
}

.hero-metrics {
  display: flex;
  align-items: center;
  gap: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--slate-200);
}

.metric-item strong {
  display: block;
  font-size: 22px;
  font-weight: 800;
  color: var(--secondary);
}

.metric-item span {
  font-size: 13px;
  color: var(--slate-600);
}

/* Aerodynamic Graphic Box */
.hero-visual {
  background: var(--surface);
  border: 2px solid var(--slate-200);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-md);
  position: relative;
}

.telemetry-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.telemetry-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--slate-200);
}

.telemetry-head .label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--slate-600);
  text-transform: uppercase;
}

.telemetry-head .status {
  font-size: 12px;
  color: #10B981;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 6px;
}

.status-indicator {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #10B981;
}

.telemetry-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-light);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--primary);
}

.telemetry-info {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 600;
}

.telemetry-speed {
  font-size: 14px;
  font-weight: 700;
  color: var(--primary);
  font-family: monospace;
}

/* Section Header Shared */
.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 52px;
}

.section-tag {
  display: inline-block;
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 700;
  color: var(--secondary);
  background: rgba(29, 53, 87, 0.08);
  border-radius: 4px;
  margin-bottom: 12px;
  letter-spacing: 1px;
}

.section-title {
  font-size: 34px;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 14px;
  line-height: 1.3;
}

.section-subtitle {
  font-size: 16px;
  color: var(--slate-600);
}

/* Section 1: 极致速度体验 (Features) */
.section-features {
  padding: 88px 0;
  background: var(--surface);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-card {
  background: var(--bg-light);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  position: relative;
  transition: var(--transition);
}

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

.feature-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 24px;
  right: 24px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: var(--transition);
}

.feature-card:hover::after {
  opacity: 1;
}

.feature-icon-wrap {
  width: 58px;
  height: 58px;
  background: #FFFFFF;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  border: 1px solid var(--slate-200);
  box-shadow: var(--shadow-sm);
}

.feature-icon-wrap svg {
  width: 32px;
  height: 32px;
}

.feature-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 12px;
}

.feature-desc {
  font-size: 14px;
  color: var(--slate-600);
  line-height: 1.7;
}

/* Section 2: 全天候极速吞吐表现 (Streaming & AI) */
.section-media-ai {
  padding: 88px 0;
  background: #0F172A;
  color: #FFFFFF;
}

.section-media-ai .section-tag {
  background: rgba(255, 255, 255, 0.12);
  color: var(--accent-light);
}

.section-media-ai .section-title {
  color: #FFFFFF;
}

.section-media-ai .section-subtitle {
  color: var(--slate-400);
}

.media-ai-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.media-ai-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 26px 22px;
  transition: var(--transition);
}

.media-ai-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--primary);
  transform: translateY(-4px);
}

.media-ai-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: rgba(230, 57, 70, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.media-ai-icon svg {
  width: 26px;
  height: 26px;
}

.media-ai-title {
  font-size: 18px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 10px;
}

.media-ai-desc {
  font-size: 13px;
  color: var(--slate-400);
  line-height: 1.6;
  margin-bottom: 14px;
}

.media-ai-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  background: rgba(69, 123, 157, 0.25);
  color: var(--accent-light);
  border-radius: 4px;
}

/* Section 3: 极速领航专享方案 (Pricing) */
.section-pricing {
  padding: 96px 0;
  background: var(--bg-light);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: stretch;
}

.pricing-card {
  background: var(--surface);
  border: 2px solid var(--slate-200);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: var(--transition);
}

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

.pricing-card.featured {
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
  transform: scale(1.03);
  z-index: 2;
}

.pricing-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: #FFFFFF;
  font-size: 12px;
  font-weight: 800;
  padding: 4px 16px;
  border-radius: 99px;
  letter-spacing: 0.5px;
}

.pricing-tier-name {
  font-size: 22px;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 8px;
}

.pricing-tier-desc {
  font-size: 14px;
  color: var(--slate-600);
  margin-bottom: 24px;
}

.pricing-price-box {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 28px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--slate-200);
}

.pricing-currency {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary);
}

.pricing-amount {
  font-size: 46px;
  font-weight: 800;
  color: var(--dark);
  line-height: 1;
}

.pricing-period {
  font-size: 14px;
  color: var(--slate-600);
}

.pricing-features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 36px;
  flex-grow: 1;
}

.pricing-features-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--dark);
}

.pricing-features-list li svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.pricing-card .btn {
  width: 100%;
}

/* Section 4: 领航先锋真实评测 (Testimonials) */
.section-testimonials {
  padding: 88px 0;
  background: var(--surface);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.testimonial-card {
  background: var(--bg-light);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-md);
  padding: 30px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.testimonial-content {
  font-size: 15px;
  line-height: 1.7;
  color: var(--dark);
  margin-bottom: 24px;
  position: relative;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-top: 18px;
  border-top: 1px dashed var(--slate-200);
}

.author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--secondary);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 15px;
}

.author-info strong {
  display: block;
  font-size: 15px;
  color: var(--dark);
}

.author-info span {
  font-size: 12px;
  color: var(--slate-600);
}

/* Section 5: 速度与网络疑难解答 (FAQ) */
.section-faq {
  padding: 88px 0 100px;
  background: var(--bg-light);
}

.faq-container {
  max-width: 840px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-sm);
  padding: 24px 28px;
  transition: var(--transition);
}

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

.faq-question {
  font-size: 17px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.faq-q-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: rgba(230, 57, 70, 0.1);
  color: var(--primary);
  font-size: 12px;
  font-weight: 800;
  border-radius: 4px;
  flex-shrink: 0;
}

.faq-answer {
  font-size: 14px;
  color: var(--slate-600);
  line-height: 1.7;
  padding-left: 36px;
}

/* Footer (Only 4 Titles) */
.site-footer {
  background: #0B132B;
  color: #FFFFFF;
  padding: 48px 0 36px;
  border-top: 3px solid var(--primary);
}

.footer-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 48px;
  margin-bottom: 28px;
}

.footer-nav a {
  font-size: 16px;
  font-weight: 600;
  color: #E2E8F0;
  transition: var(--transition);
  position: relative;
  padding: 6px 0;
}

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

.footer-copy {
  text-align: center;
  font-size: 13px;
  color: var(--slate-400);
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

/* Sub-page Article Layout (about, terms, privacy, sitemap) */
.page-article {
  padding: 72px 0 96px;
  background: var(--surface);
}

.page-article-header {
  margin-bottom: 48px;
  padding-bottom: 24px;
  border-bottom: 2px solid var(--slate-200);
}

.page-article-title {
  font-size: 36px;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 12px;
}

.page-article-meta {
  font-size: 14px;
  color: var(--slate-600);
}

.article-content {
  font-size: 16px;
  line-height: 1.8;
  color: #334155;
}

.article-content h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--dark);
  margin: 40px 0 16px;
  padding-left: 14px;
  border-left: 4px solid var(--primary);
}

.article-content h3 {
  font-size: 19px;
  font-weight: 600;
  color: var(--dark);
  margin: 28px 0 12px;
}

.article-content p {
  margin-bottom: 18px;
}

.article-content ul, .article-content ol {
  margin: 16px 0 24px 24px;
}

.article-content li {
  margin-bottom: 10px;
}

.sitemap-tree {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  margin-top: 32px;
}

.sitemap-card {
  background: var(--bg-light);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-md);
  padding: 24px;
}

.sitemap-card h3 {
  font-size: 18px;
  color: var(--secondary);
  margin-bottom: 16px;
  border-left: none;
  padding-left: 0;
}

.sitemap-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sitemap-card a {
  color: var(--dark);
  font-weight: 500;
  display: inline-block;
  transition: var(--transition);
}

.sitemap-card a:hover {
  color: var(--primary);
  transform: translateX(4px);
}

/* Responsive Media Queries */
@media (max-width: 992px) {
  .site-nav {
    display: none;
  }
  
  .header-actions {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .feature-grid {
    grid-template-columns: 1fr;
  }
  
  .media-ai-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  
  .pricing-card.featured {
    transform: none;
  }
  
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .nav-wrap {
    height: 64px;
  }

  .logo-svg {
    height: 32px;
    max-width: 155px;
  }

  .hero-title {
    font-size: 32px;
  }
  
  .hero-desc {
    font-size: 16px;
  }
  
  .hero-cta-group {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
  }
  
  .hero-cta-group .btn {
    width: 100%;
    min-height: 48px;
  }
  
  .media-ai-grid {
    grid-template-columns: 1fr;
  }
  
  .sitemap-tree {
    grid-template-columns: 1fr;
  }
  
  .footer-nav {
    flex-direction: column;
    gap: 20px;
  }
  
  .hero-metrics {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
}

/* ==========================================================================
   Editorial & Insights Hub Styles - runwayvpn.click (Aerodynamic Speed)
   ========================================================================== */

/* Universal Content & Editorial Hyperlinks - Prominent Accent Color */
p a, li a, td a, .article-body a, .insights-content a, .entry-content a {
  color: var(--primary);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: var(--transition);
}

p a:visited, li a:visited, td a:visited, .article-body a:visited, .insights-content a:visited, .entry-content a:visited {
  color: var(--primary);
}

p a:hover, li a:hover, td a:hover, .article-body a:hover, .insights-content a:hover, .entry-content a:hover {
  color: var(--primary-hover);
  text-decoration-thickness: 2px;
}

/* Insights Hub Section */
.insights-hub-section {
  padding: 64px 0 96px;
}

.insights-header {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 52px;
}

.insights-header .section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(230, 57, 70, 0.08);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  border-radius: 999px;
  margin-bottom: 16px;
  border: 1px solid rgba(230, 57, 70, 0.2);
}

.insights-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.insight-card {
  background: var(--surface);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.insight-card:hover {
  transform: translateY(-5px);
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
}

.insight-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  opacity: 0;
  transition: var(--transition);
}

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

.insight-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--slate-400);
  margin-bottom: 14px;
}

.insight-tag {
  background: var(--bg-light);
  color: var(--secondary);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 6px;
}

.insight-title {
  font-size: 19px;
  font-weight: 700;
  color: var(--dark);
  line-height: 1.45;
  margin-bottom: 14px;
}

.insight-title a {
  color: var(--dark);
  text-decoration: none;
  font-weight: 700;
}

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

.insight-snippet {
  font-size: 14px;
  color: var(--slate-600);
  line-height: 1.65;
  margin-bottom: 24px;
  flex-grow: 1;
}

.insight-read-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 700;
  color: var(--primary) !important;
  text-decoration: none !important;
  transition: var(--transition);
}

.insight-read-more:hover {
  transform: translateX(4px);
  color: var(--primary-hover) !important;
}

/* Single Article Reading View */
.article-reading-sheet {
  padding: 56px 0 96px;
}

.article-container {
  max-width: 860px;
  margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-lg);
  padding: 48px 56px;
  box-shadow: var(--shadow-sm);
}

.article-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  color: var(--slate-400);
  margin-bottom: 24px;
}

.article-breadcrumb a {
  color: var(--slate-600);
  text-decoration: none;
}

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

.article-headline {
  font-size: 32px;
  font-weight: 800;
  color: var(--dark);
  line-height: 1.35;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.article-meta-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
  font-size: 13.5px;
  color: var(--slate-400);
  padding-bottom: 24px;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--slate-200);
}

.article-meta-bar span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.article-body {
  font-size: 16px;
  color: #334155;
  line-height: 1.8;
}

.article-body h2 {
  font-size: 22px;
  font-weight: 800;
  color: var(--secondary);
  margin: 36px 0 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--slate-200);
  position: relative;
}

.article-body h2::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 48px;
  height: 2px;
  background: var(--primary);
}

.article-body h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--dark);
  margin: 24px 0 12px;
}

.article-body p {
  margin-bottom: 18px;
}

.article-body ul, .article-body ol {
  margin: 16px 0 20px 24px;
}

.article-body li {
  margin-bottom: 8px;
  color: #334155;
}

.article-callout {
  background: rgba(230, 57, 70, 0.04);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 20px 24px;
  margin: 28px 0;
  font-size: 15px;
}

.article-callout-title {
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 6px;
}

.article-author-card {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--slate-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

@media (max-width: 992px) {
  .insights-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .insights-grid {
    grid-template-columns: 1fr;
  }
  .article-container {
    padding: 30px 20px;
  }
  .article-headline {
    font-size: 24px;
  }
}