/* ==========================================================================
   闪连VPN (Shanlian VPN) - Data Journalism Style Sheet
   Colors: White #FFFFFF, Maroon #703B4A, Powder Blue #DCECF1, Charcoal #2A3034
   ========================================================================== */

:root {
  --color-white: #FFFFFF;
  --color-maroon: #703B4A;
  --color-maroon-dark: #4A232E;
  --color-maroon-light: #945365;
  --color-powder-blue: #DCECF1;
  --color-powder-blue-light: #F4F9FA;
  --color-powder-blue-dark: #ABC8D2;
  --color-charcoal: #2A3034;
  --color-charcoal-muted: #566168;
  --color-border: #D1DEE2;
  --color-border-maroon: rgba(112, 59, 74, 0.2);
  
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-serif: "Songti SC", "Noto Serif CJK SC", "Source Han Serif SC", "STSong", "SimSun", serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  --max-width: 1200px;
  --header-height: 70px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --shadow-sm: 0 2px 4px rgba(42, 48, 52, 0.05);
  --shadow-md: 0 4px 12px rgba(42, 48, 52, 0.08);
}

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

html {
  font-size: 18px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-charcoal);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
}

/* Accessibility Focus States */
:focus-visible {
  outline: 3px solid var(--color-maroon);
  outline-offset: 2px;
}

/* Headings & Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  color: var(--color-maroon);
  line-height: 1.25;
  font-weight: 700;
  margin-top: 0;
}

h1 {
  font-size: 34px;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

@media (min-width: 768px) {
  h1 {
    font-size: 50px;
  }
}

h2 {
  font-size: 1.8rem;
  margin-top: 2rem;
  margin-bottom: 1rem;
  padding-bottom: 0.4rem;
  border-bottom: 2px solid var(--color-powder-blue);
}

h3 {
  font-size: 1.35rem;
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
  color: var(--color-maroon-dark);
}

p {
  margin-top: 0;
  margin-bottom: 1.25rem;
}

a {
  color: var(--color-maroon);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color 0.15s ease, text-decoration-color 0.15s ease;
}

a:hover {
  color: var(--color-maroon-dark);
  text-decoration-color: var(--color-maroon-dark);
}

.tabular-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.03em;
}

.serif-excerpt, .editorial-quote {
  font-family: var(--font-serif);
  font-style: normal;
  color: var(--color-charcoal-muted);
}

/* Layout Elements */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

/* Top Editorial Banner */
.top-bar {
  background-color: var(--color-maroon);
  color: var(--color-powder-blue);
  font-size: 0.85rem;
  padding: 0.4rem 0;
  text-align: center;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.top-bar a {
  color: var(--color-white);
  font-weight: 600;
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--color-maroon);
  font-weight: 800;
  font-size: 1.35rem;
}

.site-logo .badge {
  background-color: var(--color-powder-blue);
  color: var(--color-maroon-dark);
  font-size: 0.75rem;
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.nav-desktop {
  display: none;
}

@media (min-width: 992px) {
  .nav-desktop {
    display: flex;
    align-items: center;
    gap: 1.5rem;
  }
}

.nav-link {
  text-decoration: none;
  color: var(--color-charcoal);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.5rem 0;
  position: relative;
}

.nav-link:hover, .nav-link.active {
  color: var(--color-maroon);
}

.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--color-maroon);
}

.btn-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-maroon);
  color: var(--color-white) !important;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-maroon);
  transition: background-color 0.15s ease, border-color 0.15s ease;
  white-space: nowrap;
}

.btn-cta:hover {
  background-color: var(--color-maroon-dark);
  border-color: var(--color-maroon-dark);
  color: var(--color-white) !important;
}

.btn-cta-secondary {
  background-color: var(--color-powder-blue);
  color: var(--color-maroon-dark) !important;
  border-color: var(--color-powder-blue-dark);
}

.btn-cta-secondary:hover {
  background-color: var(--color-powder-blue-dark);
  color: var(--color-maroon-dark) !important;
}

/* Mobile Menu Button */
.mobile-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--color-charcoal);
  padding: 0;
}

@media (min-width: 992px) {
  .mobile-menu-btn {
    display: none;
  }
}

.mobile-menu-btn svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

/* Mobile Menu Nav Overlay */
.mobile-nav-drawer {
  display: none;
  position: absolute;
  top: var(--header-height);
  left: 0;
  right: 0;
  background-color: var(--color-white);
  border-bottom: 2px solid var(--color-maroon);
  padding: 1.25rem;
  box-shadow: var(--shadow-md);
}

.mobile-nav-drawer.is-open {
  display: block;
}

.mobile-nav-drawer .nav-link {
  display: block;
  font-size: 1.1rem;
  padding: 0.75rem 0;
  border-bottom: 1px dashed var(--color-border);
}

.mobile-nav-drawer .btn-cta {
  display: block;
  text-align: center;
  margin-top: 1rem;
  padding: 0.75rem;
}

/* Hero Section */
.hero-section {
  padding: 3rem 0 3.5rem 0;
  background: linear-gradient(180deg, var(--color-powder-blue-light) 0%, var(--color-white) 100%);
  border-bottom: 1px solid var(--color-border);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 992px) {
  .hero-grid {
    grid-template-columns: 1.1fr 0.9fr;
  }
}

.hero-kicker {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-maroon);
  background-color: var(--color-powder-blue);
  padding: 0.2rem 0.6rem;
  border-left: 3px solid var(--color-maroon);
  margin-bottom: 1rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.hero-lead {
  font-size: 1.1rem;
  color: var(--color-charcoal-muted);
  margin-bottom: 1.75rem;
  max-width: 640px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.hero-meta-notes {
  font-size: 0.85rem;
  color: var(--color-charcoal-muted);
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-meta-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.hero-meta-item svg {
  width: 16px;
  height: 16px;
  fill: var(--color-maroon);
}

/* Data Journalism Visual Box */
.graphic-box {
  background-color: var(--color-white);
  border: 1px solid var(--color-maroon);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: var(--shadow-md);
  position: relative;
}

.graphic-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--color-border);
}

.graphic-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-maroon);
  margin: 0;
}

.graphic-subtitle {
  font-size: 0.8rem;
  color: var(--color-charcoal-muted);
  margin-top: 0.2rem;
}

.graphic-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background-color: var(--color-powder-blue);
  color: var(--color-maroon-dark);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
}

/* SVG Chart & Graphic */
.svg-container {
  width: 100%;
  height: auto;
  display: block;
}

@keyframes routeDash {
  to {
    stroke-dashoffset: 0;
  }
}

.decorative-route-line {
  stroke-dasharray: 400;
  stroke-dashoffset: 400;
  animation: routeDash 4s linear infinite;
}

@media (prefers-reduced-motion: reduce) {
  .decorative-route-line {
    animation: none;
    stroke-dashoffset: 0;
  }
}

.graphic-legend {
  display: flex;
  gap: 1rem;
  font-size: 0.78rem;
  color: var(--color-charcoal-muted);
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--color-border);
  flex-wrap: wrap;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.legend-dot.maroon { background-color: var(--color-maroon); }
.legend-dot.blue { background-color: var(--color-powder-blue-dark); }
.legend-dot.charcoal { background-color: var(--color-charcoal); }

/* Section Styling */
.section-padding {
  padding: 3.5rem 0;
}

.section-bg-alt {
  background-color: var(--color-powder-blue-light);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.section-header {
  max-width: 760px;
  margin-bottom: 2.5rem;
}

.section-kicker {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-maroon);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
  display: block;
}

.section-title {
  margin-bottom: 0.75rem;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--color-charcoal-muted);
  margin-bottom: 0;
}

/* Infographics Grid / Advantages */
.infographic-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

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

.infographic-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-top: 4px solid var(--color-maroon);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

.card-num {
  font-family: var(--font-mono);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--color-powder-blue-dark);
  line-height: 1;
  margin-bottom: 0.75rem;
}

.infographic-card h3 {
  margin-top: 0;
  font-size: 1.25rem;
}

.infographic-card p {
  font-size: 0.95rem;
  color: var(--color-charcoal-muted);
  flex-grow: 1;
}

/* Region Comparison Table / Cards */
.nodes-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

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

@media (min-width: 1200px) {
  .nodes-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.node-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
}

.node-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--color-powder-blue);
}

.node-region {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-maroon);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.node-tag {
  font-size: 0.75rem;
  background-color: var(--color-powder-blue);
  color: var(--color-maroon-dark);
  padding: 0.15rem 0.4rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.node-specs {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem 0;
  font-size: 0.9rem;
}

.node-specs li {
  padding: 0.35rem 0;
  border-bottom: 1px dashed var(--color-powder-blue);
  display: flex;
  justify-content: space-between;
}

.node-specs li span.label {
  color: var(--color-charcoal-muted);
}

.node-specs li span.val {
  font-weight: 600;
  color: var(--color-charcoal);
}

.node-editorial-note {
  font-size: 0.82rem;
  color: var(--color-charcoal-muted);
  background-color: var(--color-powder-blue-light);
  padding: 0.6rem;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--color-maroon-light);
  margin-top: auto;
}

/* Use Cases Diagrams Section */
.usecase-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

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

.usecase-box {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

.usecase-box h3 {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0;
}

.tags-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1rem 0;
}

.app-tag {
  font-size: 0.82rem;
  background-color: var(--color-powder-blue);
  color: var(--color-maroon-dark);
  padding: 0.25rem 0.6rem;
  border-radius: 12px;
  font-weight: 600;
}

/* Pricing Grid */
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

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

.pricing-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.pricing-card.featured {
  border: 2px solid var(--color-maroon);
  box-shadow: var(--shadow-md);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  right: 1.25rem;
  background-color: var(--color-maroon);
  color: var(--color-white);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.6rem;
  border-radius: 10px;
}

.pricing-card h3 {
  margin-top: 0;
  margin-bottom: 0.3rem;
}

.pricing-price {
  margin: 0.6rem 0 0.2rem 0;
  display: flex;
  align-items: baseline;
  color: var(--color-maroon);
}

.pricing-price .currency {
  font-size: 1.2rem;
  font-weight: 700;
  margin-right: 0.15rem;
}

.pricing-price .amount {
  font-size: 2.3rem;
  font-weight: 800;
  line-height: 1;
  font-family: var(--font-mono);
}

.pricing-price .period {
  font-size: 0.9rem;
  color: var(--color-charcoal-muted);
  margin-left: 0.35rem;
}

.pricing-subtext {
  font-size: 0.82rem;
  color: var(--color-maroon-light);
  margin-bottom: 1rem;
  font-weight: 600;
}

.pricing-desc {
  font-size: 0.88rem;
  color: var(--color-charcoal-muted);
  margin-bottom: 0.5rem;
}

.pricing-features {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem 0;
  font-size: 0.92rem;
  flex-grow: 1;
}

.pricing-features li {
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--color-powder-blue-light);
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.pricing-features li svg {
  width: 16px;
  height: 16px;
  fill: var(--color-maroon);
  flex-shrink: 0;
  margin-top: 0.2rem;
}

.placeholder-note {
  font-size: 0.78rem;
  color: var(--color-charcoal-muted);
  font-style: italic;
  margin-top: 0.5rem;
  text-align: center;
}

/* Homepage 9 Article Cards Section */
/* Column rules: 3 on desktop, 2 on tablet, 1 on mobile */
.article-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

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

@media (min-width: 992px) {
  .article-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.article-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.article-card:hover {
  border-color: var(--color-maroon-light);
  box-shadow: var(--shadow-md);
}

.article-category {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-maroon);
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}

.article-card-title {
  font-size: 1.15rem;
  line-height: 1.35;
  margin-top: 0;
  margin-bottom: 0.6rem;
}

.article-card-title a {
  color: var(--color-charcoal);
  text-decoration: none;
}

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

.article-card-summary {
  font-family: var(--font-serif);
  font-size: 0.92rem;
  color: var(--color-charcoal-muted);
  line-height: 1.55;
  margin-bottom: 1rem;
  flex-grow: 1;
}

.article-card-footer {
  font-size: 0.8rem;
  color: var(--color-charcoal-muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 0.6rem;
  border-top: 1px dashed var(--color-border);
}

/* Testimonials Section */
.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

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

.testimonial-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-powder-blue-dark);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

.testimonial-label {
  font-size: 0.72rem;
  background-color: var(--color-powder-blue);
  color: var(--color-maroon-dark);
  padding: 0.15rem 0.4rem;
  border-radius: 3px;
  font-weight: 700;
  margin-bottom: 0.6rem;
  display: inline-block;
}

.testimonial-quote {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  color: var(--color-charcoal);
  margin-bottom: 0.75rem;
  line-height: 1.6;
}

.testimonial-author {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-maroon);
}

/* FAQ Accordion Section */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 860px;
}

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

.faq-question {
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  padding: 1.1rem 1.25rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-maroon);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.faq-question:hover {
  background-color: var(--color-powder-blue-light);
}

.faq-icon {
  width: 20px;
  height: 20px;
  transition: transform 0.2s ease;
  flex-shrink: 0;
  fill: var(--color-maroon);
}

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

.faq-answer {
  display: none;
  padding: 0 1.25rem 1.25rem 1.25rem;
  font-size: 0.95rem;
  color: var(--color-charcoal);
  border-top: 1px dashed var(--color-powder-blue);
}

.faq-item.is-open .faq-answer {
  display: block;
}

/* Article Page Layout */
.article-layout {
  padding: 2.5rem 0 4rem 0;
}

.breadcrumb {
  font-size: 0.85rem;
  color: var(--color-charcoal-muted);
  margin-bottom: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
}

.breadcrumb a {
  color: var(--color-charcoal-muted);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--color-maroon);
  text-decoration: underline;
}

.article-header {
  max-width: 820px;
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 2px solid var(--color-powder-blue);
}

.article-meta {
  font-size: 0.85rem;
  color: var(--color-charcoal-muted);
  display: flex;
  gap: 1.25rem;
  margin-top: 0.75rem;
  flex-wrap: wrap;
}

.article-body {
  max-width: 820px;
  font-size: 1rem;
  line-height: 1.75;
}

.article-body h2 {
  font-size: 1.5rem;
  margin-top: 2.25rem;
  margin-bottom: 1rem;
  color: var(--color-maroon);
}

.article-body h3 {
  font-size: 1.25rem;
  margin-top: 1.75rem;
  margin-bottom: 0.75rem;
  color: var(--color-maroon-dark);
}

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

.article-body li {
  margin-bottom: 0.4rem;
}

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

.article-callout p:last-child {
  margin-bottom: 0;
}

.related-articles {
  margin-top: 3.5rem;
  padding-top: 2rem;
  border-top: 2px solid var(--color-powder-blue);
  max-width: 820px;
}

.related-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 1rem;
}

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

.related-card {
  background-color: var(--color-powder-blue-light);
  border: 1px solid var(--color-border);
  padding: 1rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--color-charcoal);
  display: block;
}

.related-card:hover {
  border-color: var(--color-maroon);
}

.related-card-title {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-maroon);
  margin-bottom: 0.25rem;
}

/* Footer Styling */
.site-footer {
  background-color: var(--color-charcoal);
  color: var(--color-powder-blue-light);
  padding: 3.5rem 0 2rem 0;
  font-size: 0.9rem;
  border-top: 4px solid var(--color-maroon);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1.5fr;
  }
}

.footer-col h4 {
  color: var(--color-white);
  font-size: 1.05rem;
  margin-top: 0;
  margin-bottom: 1rem;
  border-bottom: 1px solid rgba(220, 236, 241, 0.2);
  padding-bottom: 0.5rem;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: var(--color-powder-blue);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--color-white);
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid rgba(220, 236, 241, 0.15);
  padding-top: 1.5rem;
  text-align: center;
  font-size: 0.82rem;
  color: rgba(220, 236, 241, 0.7);
}

.footer-bottom a {
  color: rgba(220, 236, 241, 0.9);
}