/* ==========================================================================
   飞鸟 (Feiniu) - Soft Glass Bento Light Theme
   White Background, Translucent Cards, Soft Colored Shadows,
   Rounded Bento Layout, Calm Blue & Mint Accents
   ========================================================================== */

/* 1. Root & Variables */
:root {
  --bg-dark: #f8fafc;
  --bg-primary: #f1f5f9;
  --bg-secondary: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.75);
  --bg-card-hover: rgba(255, 255, 255, 0.92);
  --bg-glass: rgba(255, 255, 255, 0.65);
  
  --border-subtle: rgba(226, 232, 240, 0.8);
  --border-active: rgba(37, 99, 235, 0.35);
  --border-glow: rgba(16, 185, 129, 0.3);
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  
  --accent-blue: #2563eb;
  --accent-indigo: #4f46e5;
  --accent-mint: #10b981;
  --accent-mint-dark: #059669;
  --accent-cyan: #0891b2;
  
  --gradient-primary: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #10b981 100%);
  --gradient-text: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  --gradient-accent-text: linear-gradient(135deg, #1d4ed8 0%, #059669 100%);
  --gradient-card-glow: radial-gradient(circle at top right, rgba(37, 99, 235, 0.08), rgba(16, 185, 129, 0.06) 60%, transparent 85%);

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  
  --shadow-card: 0 12px 32px -8px rgba(15, 23, 42, 0.06), 0 4px 12px -2px rgba(37, 99, 235, 0.05);
  --shadow-glow: 0 8px 25px -4px rgba(37, 99, 235, 0.25);
  --shadow-mint-glow: 0 8px 25px -4px rgba(16, 185, 129, 0.25);
  
  --max-width: 1240px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

/* 2. Reset & General */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-dark);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  background: var(--bg-dark);
}

/* Ambient Soft Glow Background Blobs */
body::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  height: 900px;
  background: 
    radial-gradient(circle at 20% -50px, rgba(37, 99, 235, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 100px, rgba(16, 185, 129, 0.08) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

ul {
  list-style: none;
}

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

button, input {
  font-family: inherit;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
  position: relative;
  z-index: 1;
}

/* Typography Utilities */
.gradient-text {
  background: var(--gradient-accent-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.95rem;
  border-radius: 9999px;
  background: rgba(37, 99, 235, 0.08);
  border: 1px solid rgba(37, 99, 235, 0.18);
  color: var(--accent-blue);
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 1rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.section-title {
  font-size: 2.1rem;
  font-weight: 800;
  line-height: 1.25;
  color: var(--text-primary);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto 2.5rem auto;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  white-space: nowrap;
  border: none;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #ffffff;
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px -4px rgba(37, 99, 235, 0.35);
  filter: brightness(1.05);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.85);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(12px);
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.03);
}

.btn-secondary:hover {
  background: #ffffff;
  border-color: rgba(37, 99, 235, 0.3);
  color: var(--accent-blue);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.1);
}

.btn-block {
  width: 100%;
}

/* 3. Header Navigation (Soft Glass) */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  height: 72px;
  display: flex;
  align-items: center;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.brand-icon {
  width: 34px;
  height: 34px;
  background: var(--gradient-primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 900;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-link {
  font-size: 0.92rem;
  color: var(--text-secondary);
  font-weight: 600;
}

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

.mobile-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
}

/* 4. Hero Section */
.hero-section {
  padding: 4.5rem 0 5.5rem 0;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 1.1rem;
  border-radius: 9999px;
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.25);
  color: var(--accent-mint-dark);
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.status-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-mint);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-mint);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.15); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

.hero-title {
  font-size: 2.6rem;
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
  color: var(--text-primary);
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  justify-content: center;
}

.hero-features-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.25rem;
  margin-top: 2.25rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
}

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

.check-icon {
  color: var(--accent-mint-dark);
  font-weight: 800;
}

/* Hero Network Dashboard (Soft Glass Bento Visual) */
.dashboard-card {
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 1.75rem;
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}

.dashboard-card::before {
  content: "";
  position: absolute;
  top: 0; right: 0; width: 250px; height: 250px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.dashboard-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 1rem;
  margin-bottom: 1.25rem;
}

.dashboard-title {
  font-size: 0.95rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-primary);
}

.status-pill {
  font-size: 0.75rem;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  background: rgba(16, 185, 129, 0.1);
  color: var(--accent-mint-dark);
  font-weight: 700;
}

.nodes-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.node-item {
  background: rgba(248, 250, 252, 0.8);
  border: 1px solid rgba(226, 232, 240, 0.8);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all 0.25s ease;
}

.node-item:hover {
  background: #ffffff;
  border-color: var(--border-active);
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.08);
}

.node-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.flag-icon {
  font-size: 1.15rem;
}

.node-name {
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--text-primary);
}

.node-type {
  font-size: 0.76rem;
  color: var(--text-muted);
}

.node-latency {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-mint-dark);
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.dashboard-chart-container {
  margin-top: 1rem;
  background: rgba(248, 250, 252, 0.9);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1rem 1rem 0.65rem 1rem;
  position: relative;
  overflow: hidden;
  box-shadow: inset 0 2px 6px rgba(15, 23, 42, 0.02);
}

.chart-legend {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-secondary);
  margin-bottom: 0.85rem;
  position: relative;
  z-index: 2;
}

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

.legend-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
}

.legend-dot.blue {
  background: var(--accent-blue);
  box-shadow: 0 0 6px rgba(37, 99, 235, 0.4);
}

.legend-dot.mint {
  background: var(--accent-mint);
  box-shadow: 0 0 6px rgba(16, 185, 129, 0.4);
}

.waveform-svg {
  width: 100%;
  height: 70px;
  display: block;
  position: relative;
  z-index: 1;
}

.dashboard-footer {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-subtle);
}

.stat-box {
  background: rgba(241, 245, 249, 0.6);
  padding: 0.7rem 0.85rem;
  border-radius: var(--radius-sm);
  text-align: center;
}

.stat-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 600;
}

.stat-val {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--accent-blue);
}

/* 5. Bento Grid Features Section (Soft Glass Cards) */
.bento-section {
  padding: 5rem 0;
}

.bento-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.bento-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem;
  position: relative;
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(16px);
}

.bento-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-active);
  transform: translateY(-4px);
  box-shadow: 0 16px 36px -8px rgba(37, 99, 235, 0.12), 0 6px 16px -2px rgba(16, 185, 129, 0.08);
}

.bento-card::before {
  content: "";
  position: absolute;
  top: 0; right: 0; bottom: 0; left: 0;
  background: var(--gradient-card-glow);
  pointer-events: none;
}

.card-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(37, 99, 235, 0.08);
  border: 1px solid rgba(37, 99, 235, 0.18);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-blue);
  font-size: 1.4rem;
  margin-bottom: 1.25rem;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.06);
}

.card-title {
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 0.65rem;
  color: var(--text-primary);
}

.card-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* 6. AI & Streaming Section */
.scenarios-section {
  padding: 5rem 0;
  background: var(--bg-primary);
}

.scenarios-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.scenario-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-card);
  transition: all 0.3s ease;
}

.scenario-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-active);
  transform: translateY(-3px);
  box-shadow: 0 16px 36px -8px rgba(37, 99, 235, 0.1);
}

.tags-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.tag-pill {
  font-size: 0.82rem;
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  background: rgba(241, 245, 249, 0.9);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-weight: 600;
}

.tag-pill.ai {
  background: rgba(37, 99, 235, 0.08);
  border-color: rgba(37, 99, 235, 0.2);
  color: var(--accent-blue);
}

.tag-pill.media {
  background: rgba(16, 185, 129, 0.08);
  border-color: rgba(16, 185, 129, 0.25);
  color: var(--accent-mint-dark);
}

/* 7. SaaS Pricing Section */
.pricing-section {
  padding: 5rem 0;
}

.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(16px);
}

.pricing-card.featured {
  background: #ffffff;
  border: 2px solid var(--accent-blue);
  box-shadow: 0 16px 40px -10px rgba(37, 99, 235, 0.18), 0 6px 18px -4px rgba(16, 185, 129, 0.12);
  transform: scale(1.02);
}

.badge-featured {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-primary);
  color: white;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 0.3rem 1.1rem;
  border-radius: 9999px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  box-shadow: var(--shadow-glow);
}

.plan-name {
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.plan-price {
  font-size: 2.6rem;
  font-weight: 900;
  margin-bottom: 1.25rem;
  color: var(--text-primary);
  display: flex;
  align-items: baseline;
  gap: 0.3rem;
}

.plan-price span {
  font-size: 0.95rem;
  color: var(--text-muted);
  font-weight: 500;
}

.plan-features {
  margin: 1.5rem 0 2rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.plan-feature-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

/* 8. SEO Articles Section */
.seo-articles-section {
  padding: 5rem 0;
  background: var(--bg-primary);
}

.articles-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(16px);
}

.article-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-active);
  transform: translateY(-4px);
  box-shadow: 0 16px 36px -8px rgba(37, 99, 235, 0.12);
}

.article-cat {
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--accent-mint-dark);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  letter-spacing: 0.04em;
}

.article-title {
  font-size: 1.2rem;
  font-weight: 800;
  line-height: 1.4;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

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

.article-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-subtle);
  padding-top: 0.85rem;
}

.read-more-link {
  color: var(--accent-blue);
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

/* 9. Testimonials */
.testimonials-section {
  padding: 5rem 0;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(16px);
}

.user-info {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 1.25rem;
}

.user-avatar {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: white;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}

.user-name {
  font-weight: 800;
  font-size: 0.98rem;
  color: var(--text-primary);
}

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

.testimonial-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
  font-style: italic;
}

/* 10. FAQ Section (Accordion Soft Glass) */
.faq-section {
  padding: 5rem 0;
  background: var(--bg-primary);
}

.faq-accordion {
  max-width: 880px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all 0.25s ease;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.02);
  backdrop-filter: blur(12px);
}

.faq-item.active {
  background: #ffffff;
  border-color: var(--border-active);
  box-shadow: 0 10px 25px -5px rgba(37, 99, 235, 0.08);
}

.faq-question {
  width: 100%;
  padding: 1.35rem 1.6rem;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 1.05rem;
  font-weight: 700;
  text-align: left;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.faq-icon {
  font-size: 1.25rem;
  transition: transform 0.3s ease;
  color: var(--accent-blue);
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s cubic-bezier(0, 1, 0, 1), padding 0.3s ease;
  padding: 0 1.6rem;
  color: var(--text-secondary);
  font-size: 0.98rem;
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 0 1.6rem 1.35rem 1.6rem;
}

/* 11. Footer */
.site-footer {
  background: #ffffff;
  border-top: 1px solid var(--border-subtle);
  padding: 4.5rem 0 2.5rem 0;
  color: var(--text-secondary);
  font-size: 0.92rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  margin-top: 0.85rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  max-width: 320px;
  line-height: 1.6;
}

.footer-title {
  color: var(--text-primary);
  font-size: 0.98rem;
  font-weight: 800;
  margin-bottom: 1.1rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-links a {
  color: var(--text-secondary);
  font-weight: 500;
}

.footer-links a:hover {
  color: var(--accent-blue);
}

.footer-recommended {
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.75rem;
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  align-items: center;
  justify-content: center;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.footer-recommended a {
  color: var(--text-secondary);
  font-weight: 600;
}

.footer-recommended a:hover {
  color: var(--accent-blue);
}

.footer-bottom {
  border-top: 1px solid rgba(226, 232, 240, 0.6);
  padding-top: 1.5rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* 12. Article Subpage Styles (Soft Glass Light Theme) */
.article-page {
  padding: 3.5rem 0 6rem 0;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  font-weight: 500;
}

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

.article-header {
  max-width: 860px;
  margin-bottom: 2.5rem;
}

.article-main-title {
  font-size: 2.35rem;
  font-weight: 900;
  line-height: 1.25;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.article-body {
  max-width: 860px;
  color: #334155;
  font-size: 1.05rem;
  line-height: 1.85;
}

.article-body h2 {
  font-size: 1.55rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 2.75rem 0 1.1rem 0;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--border-subtle);
}

.article-body h3 {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 2rem 0 0.85rem 0;
}

.article-body p {
  margin-bottom: 1.35rem;
}

.article-body ul, .article-body ol {
  margin: 0 0 1.6rem 1.6rem;
}

.article-body li {
  margin-bottom: 0.6rem;
}

.article-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.75rem 0 2.25rem 0;
  font-size: 0.95rem;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.article-table th, .article-table td {
  padding: 0.95rem 1.1rem;
  border: 1px solid var(--border-subtle);
  text-align: left;
}

.article-table th {
  background: rgba(241, 245, 249, 0.9);
  color: var(--text-primary);
  font-weight: 800;
}

.cta-box {
  background: linear-gradient(135deg, rgba(239, 246, 255, 0.9) 0%, rgba(240, 253, 244, 0.9) 100%);
  border: 1px solid rgba(37, 99, 235, 0.2);
  border-radius: var(--radius-xl);
  padding: 2.5rem 2rem;
  text-align: center;
  margin: 3.5rem 0;
  box-shadow: 0 12px 32px -8px rgba(37, 99, 235, 0.08);
}

.cta-box h3 {
  font-size: 1.45rem;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.cta-box p {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 1.75rem;
}

.related-articles {
  margin-top: 4rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--border-subtle);
}

/* 13. Responsive Media Queries */

/* Tablet & Up (768px+) */
@media (min-width: 768px) {
  .hero-title {
    font-size: 3.4rem;
  }
  
  .hero-actions {
    flex-direction: row;
  }
  
  .bento-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .scenarios-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .pricing-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .testimonials-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

/* Desktop & Up (1024px+) */
@media (min-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1.1fr 0.9fr;
    text-align: left;
  }
  
  .hero-content {
    text-align: left;
  }
  
  .hero-actions {
    justify-content: flex-start;
  }
  
  .hero-features-list {
    justify-content: flex-start;
  }
  
  .bento-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .bento-card.wide {
    grid-column: span 2;
  }
  
  .articles-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Mobile Drawer (Soft Glass) */
@media (max-width: 767px) {
  .nav-menu {
    position: fixed;
    top: 72px;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    border-bottom: 1px solid var(--border-subtle);
    transform: translateY(-150%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 99;
    box-shadow: 0 16px 32px rgba(15, 23, 42, 0.08);
  }
  
  .nav-menu.active {
    transform: translateY(0);
  }
  
  .mobile-toggle {
    display: block;
  }
  
  .pricing-card.featured {
    transform: none;
  }
}

/* Prefers Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}