/* ==========================================================================
   白羊星机场 - Editorial Warm Theme CSS
   Palette:
   - Background: #F8F6F1 (Ivory)
   - Text: #202621 (Charcoal)
   - Moss Green Accent: #5B725C (Hover: #485B49, Soft Tint: #EAEFEA)
   - Muted Gold Detail: #C6AA77 (Hover: #B39662, Soft Tint: #F7F3EB)
   - Card Background: #FFFFFF
   - Border Color: rgba(32, 38, 33, 0.12)
   ========================================================================== */

:root {
  --bg-ivory: #F8F6F1;
  --bg-card: #FFFFFF;
  --bg-subtle: #F2EFE8;
  --text-charcoal: #202621;
  --text-muted: #576058;
  --color-moss: #5B725C;
  --color-moss-hover: #485B49;
  --color-moss-light: #EAEFEA;
  --color-gold: #C6AA77;
  --color-gold-hover: #B39662;
  --color-gold-light: #F7F3EB;
  --border-thin: rgba(32, 38, 33, 0.12);
  --border-gold: rgba(198, 170, 119, 0.35);
  
  --font-serif: "Noto Serif SC", "Songti SC", "STSong", "SimSun", Georgia, serif;
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", Consolas, Monaco, monospace;
  
  --shadow-sm: 0 2px 8px rgba(32, 38, 33, 0.04);
  --shadow-md: 0 8px 24px rgba(32, 38, 33, 0.07);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --max-width: 1240px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--bg-ivory);
  background-image: radial-gradient(rgba(198, 170, 119, 0.08) 1px, transparent 1px);
  background-size: 24px 24px;
  color: var(--text-charcoal);
  font-family: var(--font-sans);
  font-size: 1.0625rem; /* 17px */
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  color: var(--text-charcoal);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(2.25rem, 4.5vw, 3.25rem); /* ~36px to ~52px */
  margin-bottom: 1.25rem;
}

h2 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  margin-top: 2rem;
  margin-bottom: 1rem;
}

h3 {
  font-size: clamp(1.35rem, 2vw, 1.65rem);
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
}

h4 {
  font-size: 1.2rem;
  margin-top: 1.25rem;
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 1.25rem;
  color: var(--text-charcoal);
}

a {
  color: var(--color-moss);
  text-decoration: none;
  transition: color 0.2s ease, text-decoration 0.2s ease;
}

a:hover {
  color: var(--color-moss-hover);
  text-decoration: underline;
}

a:focus-visible, button:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 3px;
}

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

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

.section {
  padding-top: 4.5rem;
  padding-bottom: 4.5rem;
  border-bottom: 1px solid var(--border-thin);
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 3rem auto;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-moss);
  background-color: var(--color-moss-light);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(91, 114, 92, 0.2);
  margin-bottom: 0.75rem;
}

.section-title {
  margin-top: 0.5rem;
  margin-bottom: 1rem;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Header & Navigation */
.site-header {
  background-color: rgba(248, 246, 241, 0.95);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid var(--border-thin);
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-charcoal);
  text-decoration: none;
}

.brand-logo:hover {
  text-decoration: none;
}

.brand-mark {
  width: 32px;
  height: 32px;
  background-color: var(--color-moss);
  color: #FFF;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.1rem;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 1.5rem;
  align-items: center;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-charcoal);
  padding: 0.4rem 0.2rem;
  position: relative;
}

.nav-link:hover {
  color: var(--color-moss);
  text-decoration: none;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background-color: var(--color-gold);
  transition: width 0.2s ease;
}

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

.header-cta {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Mobile Menu Button */
.mobile-menu-btn {
  display: none;
  background: none;
  border: 1px solid var(--border-thin);
  border-radius: var(--radius-sm);
  padding: 0.5rem;
  cursor: pointer;
  color: var(--text-charcoal);
  aria-label: "切换菜单";
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.6rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
  cursor: pointer;
  text-decoration: none !important;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-moss);
  color: #FFFFFF !important;
  border: 1px solid var(--color-moss);
  box-shadow: 0 4px 12px rgba(91, 114, 92, 0.25);
}

.btn-primary:hover {
  background-color: var(--color-moss-hover);
  border-color: var(--color-moss-hover);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-charcoal) !important;
  border: 1px solid var(--border-thin);
}

.btn-secondary:hover {
  background-color: var(--color-gold-light);
  border-color: var(--color-gold);
  color: var(--text-charcoal) !important;
}

.btn-gold {
  background-color: var(--color-gold);
  color: #FFFFFF !important;
  border: 1px solid var(--color-gold);
}

.btn-gold:hover {
  background-color: var(--color-gold-hover);
}

.btn-sm {
  padding: 0.45rem 1rem;
  font-size: 0.9rem;
}

.btn-lg {
  padding: 0.95rem 2rem;
  font-size: 1.1rem;
}

/* Hero Section */
.hero-section {
  padding-top: 4rem;
  padding-bottom: 5rem;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-content {
  max-width: 640px;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-gold);
  border: 1px solid var(--border-gold);
  background-color: var(--color-gold-light);
  padding: 0.3rem 0.9rem;
  border-radius: 20px;
  margin-bottom: 1.25rem;
}

.hero-title {
  font-size: clamp(2.25rem, 4.2vw, 3.25rem);
  line-height: 1.2;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

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

.hero-desc {
  font-size: 1.15rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  margin-bottom: 2.5rem;
}

.hero-trust-bar {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-thin);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.trust-item svg {
  color: var(--color-moss);
  flex-shrink: 0;
}

/* Dashboard Visual Component */
.dashboard-card {
  background: var(--bg-card);
  border: 1px solid var(--border-thin);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 1.5rem;
  position: relative;
}

.dashboard-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--border-thin);
}

.dashboard-title {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-charcoal);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.dashboard-status-dot {
  width: 8px;
  height: 8px;
  background-color: #2E7D32;
  border-radius: 50%;
  display: inline-block;
}

.dashboard-badge {
  font-size: 0.8rem;
  background-color: var(--color-gold-light);
  color: var(--color-gold-hover);
  border: 1px solid var(--border-gold);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
}

/* Network Region Nodes Grid */
.network-nodes-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.node-box {
  background-color: var(--bg-ivory);
  border: 1px solid var(--border-thin);
  border-radius: var(--radius-md);
  padding: 1rem;
  position: relative;
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.node-box:hover {
  border-color: var(--color-moss);
}

.node-region {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.node-name {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-charcoal);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.node-flag {
  font-size: 1.1rem;
}

.node-pulse {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--color-moss);
  position: relative;
}

.node-pulse::after {
  content: "";
  position: absolute;
  top: -3px;
  left: -3px;
  right: -3px;
  bottom: -3px;
  border-radius: 50%;
  border: 2px solid var(--color-moss);
  opacity: 0.7;
  animation: pulse 3s infinite ease-in-out;
}

@keyframes pulse {
  0% { transform: scale(0.9); opacity: 0.8; }
  50% { transform: scale(1.6); opacity: 0.2; }
  100% { transform: scale(0.9); opacity: 0.8; }
}

@media (prefers-reduced-motion: reduce) {
  .node-pulse::after {
    animation: none !important;
    opacity: 0.5;
  }
}

.node-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.node-protocol {
  font-family: var(--font-mono);
  background: var(--bg-card);
  padding: 0.15rem 0.4rem;
  border-radius: 3px;
  border: 1px solid var(--border-thin);
}

.node-status {
  color: #2E7D32;
  font-weight: 600;
}

/* SVG Topology Diagram */
.dashboard-svg-wrapper {
  background-color: #1E2420;
  border-radius: var(--radius-md);
  padding: 1rem;
  margin-top: 0.75rem;
  border: 1px solid rgba(255,255,255,0.05);
}

.dashboard-svg-wrapper svg {
  width: 100%;
  height: auto;
}

/* Advantages Grid */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-thin);
  border-radius: var(--radius-md);
  padding: 2rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  position: relative;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-gold);
}

.card-icon {
  width: 48px;
  height: 48px;
  background-color: var(--color-moss-light);
  color: var(--color-moss);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  border: 1px solid rgba(91, 114, 92, 0.15);
}

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

.card-title {
  font-size: 1.3rem;
  margin-bottom: 0.75rem;

}

.card-desc {
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.65;
  flex-grow: 1;
}

/* Scenario Cards (AI & Streaming) */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.scenario-card {
  background: var(--bg-card);
  border: 1px solid var(--border-thin);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  display: flex;
  flex-direction: column;
}

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

.scenario-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.scenario-badge {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-family: var(--font-serif);
  font-size: 1.1rem;
  flex-shrink: 0;
}

.bg-ai {
  background-color: var(--color-moss-light);
  color: var(--color-moss);
  border: 1px solid rgba(91, 114, 92, 0.2);
}

.bg-stream {
  background-color: var(--color-gold-light);
  color: var(--color-gold-hover);
  border: 1px solid var(--border-gold);
}

.scenario-name {
  font-size: 1.2rem;
  margin: 0;
}

.scenario-tagline {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.scenario-body {
  font-size: 0.95rem;
  color: var(--text-charcoal);
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.scenario-meta-list {
  list-style: none;
  border-top: 1px dashed var(--border-thin);
  padding-top: 0.75rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.scenario-meta-list li {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.scenario-meta-list svg {
  color: var(--color-moss);
  width: 14px;
  height: 14px;
}

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

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-thin);
  border-radius: var(--radius-lg);
  padding: 2.25rem 2rem;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.pricing-card.featured {
  border: 2px solid var(--color-moss);
  box-shadow: var(--shadow-md);
  transform: scale(1.02);
}

.pricing-card.featured::before {
  content: "推荐方案";
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-moss);
  color: #FFF;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.2rem 0.9rem;
  border-radius: 12px;
}

.pricing-plan-name {
  font-size: 1.4rem;
  margin-bottom: 0.5rem;
}

.pricing-placeholder-badge {
  display: inline-block;
  font-size: 0.82rem;
  color: var(--color-gold-hover);
  background-color: var(--color-gold-light);
  border: 1px solid var(--border-gold);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1.25rem;
  font-weight: 600;
}

.pricing-price-box {
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-thin);
}

.pricing-price-val {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-charcoal);
}

.pricing-price-sub {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.pricing-features {
  list-style: none;
  margin-bottom: 2rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.95rem;
  color: var(--text-charcoal);
}

.pricing-features svg {
  color: var(--color-moss);
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 2px;
}

/* Article Cards Section (9 cards: 3 col desktop, 2 col tablet, 1 col mobile) */
.article-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-thin);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.article-card:hover {
  border-color: var(--color-moss);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.article-card-cover {
  width: 100%;
  height: 200px;
  background-color: var(--bg-subtle);
  overflow: hidden;
  border-bottom: 1px solid var(--border-thin);
  position: relative;
}

.article-card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.article-card:hover .article-card-cover img {
  transform: scale(1.04);
}

.article-card-tag {
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(4px);
  color: var(--color-moss);
  border: 1px solid var(--border-thin);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  z-index: 2;
}

.article-featured-image {
  width: 100%;
  max-height: 420px;
  object-fit: cover;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-thin);
  margin-bottom: 2rem;
  box-shadow: var(--shadow-sm);
}

.article-card-content {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.article-card-title {
  font-size: 1.15rem;
  line-height: 1.4;
  margin-bottom: 0.75rem;
}

.article-card-title a {
  color: var(--text-charcoal);
}

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

.article-card-snippet {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.article-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-thin);
  padding-top: 0.85rem;
  margin-top: auto;
}

/* Accordion FAQ */
.faq-accordion {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-thin);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.faq-item[open] {
  border-color: var(--color-moss);
}

.faq-trigger {
  width: 100%;
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: none;
  border: none;
  text-align: left;
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-charcoal);
  cursor: pointer;
  gap: 1rem;
}

.faq-trigger:hover {
  color: var(--color-moss);
}

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

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

.faq-content {
  padding: 0 1.5rem 1.25rem 1.5rem;
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.7;
  border-top: 1px solid var(--border-thin);
  padding-top: 1rem;
}

/* Single Article & Page Sub-templates */
.breadcrumb-nav {
  padding-top: 1.5rem;
  padding-bottom: 0.5rem;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.breadcrumb-list {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  list-style: none;
  flex-wrap: wrap;
}

.breadcrumb-item a {
  color: var(--text-muted);
}

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

.breadcrumb-separator {
  color: var(--border-thin);
}

.article-page-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 3.5rem;
  padding-top: 2rem;
  padding-bottom: 5rem;
}

.article-main-content {
  max-width: 820px;
}

.article-header {
  margin-bottom: 2.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border-thin);
}

.article-title {
  font-size: clamp(2rem, 3.8vw, 2.75rem);
  line-height: 1.25;
  margin-bottom: 1.25rem;
}

.article-meta-bar {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.88rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.article-body {
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--text-charcoal);
}

.article-body h2 {
  font-size: 1.65rem;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--border-thin);
}

.article-body h3 {
  font-size: 1.3rem;
  margin-top: 1.75rem;
  margin-bottom: 0.75rem;
}

.article-body p {
  margin-bottom: 1.4rem;
}

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

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

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

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

.article-callout-title {
  font-weight: 700;
  font-family: var(--font-serif);
  color: var(--text-charcoal);
  margin-bottom: 0.4rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Article Visual/Diagram Container */
.article-diagram-box {
  background: var(--bg-card);
  border: 1px solid var(--border-thin);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin: 2rem 0;
  text-align: center;
}

.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.sidebar-widget {
  background: var(--bg-card);
  border: 1px solid var(--border-thin);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

.sidebar-widget-title {
  font-size: 1.15rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-thin);
}

.related-articles-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.related-articles-list li a {
  font-size: 0.93rem;
  line-height: 1.4;
  color: var(--text-charcoal);
  display: block;
}

.related-articles-list li a:hover {
  color: var(--color-moss);
}

/* Tables in Articles */
.editorial-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.75rem 0;
  font-size: 0.95rem;
}

.editorial-table th, .editorial-table td {
  padding: 0.85rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-thin);
}

.editorial-table th {
  background-color: var(--bg-subtle);
  font-family: var(--font-serif);
  font-weight: 700;
}

.editorial-table tr:hover td {
  background-color: rgba(248, 246, 241, 0.5);
}

/* Footer */
.site-footer {
  background-color: #1A1F1B;
  color: #D5DAD6;
  padding-top: 4.5rem;
  padding-bottom: 2.5rem;
  margin-top: auto;
  border-top: 2px solid var(--color-gold);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-brand p {
  color: #A0AAA2;
  font-size: 0.92rem;
  margin-top: 1rem;
  line-height: 1.6;
}

.footer-col-title {
  color: #FFFFFF;
  font-family: var(--font-serif);
  font-size: 1.1rem;
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-links a {
  color: #B5BEB7;
  font-size: 0.92rem;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.85rem;
  color: #8C968E;
}

/* Responsive Styles */

/* 1024px Layout Adjustments (Laptops / Tablets landscape) */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .grid-3, .pricing-grid, .scenario-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .pricing-card.featured {
    transform: none;
  }
  
  .article-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .article-page-layout {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 768px Layout Adjustments (Tablets portrait) */
@media (max-width: 768px) {
  .header-inner {
    height: 64px;
  }
  
  .nav-list {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background-color: var(--bg-ivory);
    flex-direction: column;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-thin);
    box-shadow: var(--shadow-md);
    gap: 1rem;
    align-items: flex-start;
  }

  .nav-list.active {
    display: flex;
  }

  .mobile-menu-btn {
    display: block;
  }
  
  .header-cta .btn {
    padding: 0.45rem 0.85rem;
    font-size: 0.88rem;
  }

  .section {
    padding-top: 3rem;
    padding-bottom: 3rem;
  }

  .grid-3, .scenario-grid, .pricing-grid, .article-grid {
    grid-template-columns: 1fr;
  }
  
  .network-nodes-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

/* Mobile Screen Specifics: 430px, 390px, 375px */
@media (max-width: 480px) {
  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .hero-trust-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .dashboard-card {
    padding: 1rem;
  }

  .pricing-card {
    padding: 1.5rem 1.25rem;
  }
}