/* ==========================================================================
   UOCloud Official Landing Page Stylesheet
   Pure Native CSS - Ultra Fast Sub-Second Loading Speed (uocloud.homes)
   ========================================================================== */

:root {
  --bg-dark: #070a13;
  --bg-card: rgba(15, 23, 42, 0.72);
  --bg-card-hover: rgba(26, 38, 66, 0.85);
  --bg-card-featured: rgba(20, 36, 68, 0.88);
  --border-color: rgba(255, 255, 255, 0.09);
  --border-highlight: rgba(0, 242, 254, 0.45);
  --primary: #00f2fe;
  --primary-rgb: 0, 242, 254;
  --secondary: #4facfe;
  --accent: #9d4edd;
  --accent-pink: #f72585;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --success: #10b981;
  --warning: #f59e0b;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 35px rgba(0, 242, 254, 0.28);
  --shadow-glow-purple: 0 0 35px rgba(157, 78, 221, 0.25);
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

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

/* ==========================================================================
   Dynamic Majestic Snow Leopard Background (霸气雪豹动态背景)
   ========================================================================== */
.bg-snow-leopard-wrap {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.bg-snow-leopard {
  position: absolute;
  top: -5%;
  left: -5%;
  width: 110%;
  height: 110%;
  background-image: url('../assets/snow-leopard.jpg');
  background-repeat: no-repeat;
  background-position: center 25%;
  background-size: cover;
  opacity: 0.42;
  filter: contrast(1.18) brightness(0.92) saturate(1.1);
  transform-origin: center center;
  animation: leopardBreathing 22s ease-in-out infinite alternate;
  will-change: transform, opacity;
}

@keyframes leopardBreathing {
  0% {
    transform: scale(1) translate(0, 0);
    opacity: 0.38;
  }
  50% {
    transform: scale(1.05) translate(-0.8%, -1.2%);
    opacity: 0.48;
  }
  100% {
    transform: scale(1.025) translate(0.6%, -0.6%);
    opacity: 0.40;
  }
}

.bg-snow-leopard-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    linear-gradient(180deg, 
      rgba(7, 10, 19, 0.75) 0%, 
      rgba(7, 10, 19, 0.28) 25%, 
      rgba(7, 10, 19, 0.72) 65%, 
      var(--bg-dark) 96%
    ),
    radial-gradient(circle at 50% 32%, 
      rgba(7, 10, 19, 0.12) 0%, 
      rgba(7, 10, 19, 0.65) 65%, 
      var(--bg-dark) 100%
    );
}

.bg-leopard-eye-glow {
  position: absolute;
  top: 28%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 520px;
  height: 320px;
  background: radial-gradient(ellipse at center, rgba(0, 242, 254, 0.28) 0%, rgba(79, 172, 254, 0.12) 40%, transparent 70%);
  filter: blur(55px);
  pointer-events: none;
  animation: eyePulse 5s ease-in-out infinite alternate;
}

@keyframes eyePulse {
  0% { opacity: 0.45; transform: translate(-50%, -50%) scale(0.94); }
  50% { opacity: 0.85; transform: translate(-50%, -50%) scale(1.08); }
  100% { opacity: 0.55; transform: translate(-50%, -50%) scale(1); }
}

/* Dynamic Background Canvas */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 1;
  opacity: 0.88;
}

/* Ambient Radial Glows */
.ambient-glow {
  position: fixed;
  width: 650px;
  height: 650px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  filter: blur(130px);
  opacity: 0.18;
}
.ambient-glow-1 {
  top: -150px;
  left: -150px;
  background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
}
.ambient-glow-2 {
  top: 40%;
  right: -200px;
  background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
}
.ambient-glow-3 {
  bottom: 10%;
  left: 10%;
  background: radial-gradient(circle, var(--secondary) 0%, transparent 70%);
}

/* Content Wrapper */
.page-wrapper {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Layout Container */
.container {
  width: 100%;
  max-width: 1240px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: 74px;
  display: flex;
  align-items: center;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(7, 10, 19, 0.8);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}
.navbar.scrolled {
  background: rgba(7, 10, 19, 0.94);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}
.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  transition: opacity 0.2s ease;
}
.brand-logo:hover {
  opacity: 0.9;
}
.brand-logo img {
  display: block;
  height: 44px;
  width: auto;
}
.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 28px;
}
.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}
.nav-link:hover, .nav-link.active {
  color: var(--text-main);
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transition: width 0.25s ease;
  border-radius: 2px;
}
.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-main);
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-sm);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 11px 24px;
  border-radius: var(--radius-full);
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn-sm {
  padding: 8px 18px;
  font-size: 0.88rem;
}
.btn-lg {
  padding: 14px 34px;
  font-size: 1.05rem;
}
.btn-primary {
  background: linear-gradient(135deg, #00f2fe 0%, #4facfe 50%, #7f00ff 100%);
  background-size: 200% auto;
  color: #050b17;
  font-weight: 700;
  box-shadow: 0 4px 18px rgba(0, 242, 254, 0.35);
}
.btn-primary:hover {
  background-position: right center;
  box-shadow: 0 6px 25px rgba(0, 242, 254, 0.55);
  transform: translateY(-2px);
  color: #020712;
}
.btn-outline {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  backdrop-filter: blur(8px);
}
.btn-outline:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}
.btn-block {
  width: 100%;
}

/* Hero Section */
.hero-section {
  padding: 80px 0 60px;
  text-align: center;
  position: relative;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  background: rgba(0, 242, 254, 0.08);
  border: 1px solid rgba(0, 242, 254, 0.25);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 24px;
  box-shadow: 0 0 16px rgba(0, 242, 254, 0.15);
}
.ping-dot {
  width: 8px;
  height: 8px;
  background-color: var(--success);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--success);
  animation: pulsePing 1.8s infinite;
}
@keyframes pulsePing {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -0.03em;
  margin-bottom: 22px;
  color: #ffffff;
}
.gradient-text {
  background: linear-gradient(135deg, #00f2fe 0%, #4facfe 50%, #a855f7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-desc {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-muted);
  max-width: 820px;
  margin: 0 auto 36px;
  font-weight: 400;
}
.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 50px;
}
.hero-trust {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 36px;
  color: var(--text-dim);
  font-size: 0.88rem;
  flex-wrap: wrap;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 6px;
}
.trust-item svg {
  color: var(--primary);
}

/* Stats Counter Grid */
.stats-section {
  padding: 40px 0;
  margin-bottom: 40px;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 24px;
  border-radius: var(--radius-md);
  text-align: center;
  backdrop-filter: blur(10px);
  transition: var(--transition);
}
.stat-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-highlight);
  box-shadow: var(--shadow-glow);
}
.stat-num {
  font-size: 2.3rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 6px;
  font-family: var(--font-mono);
}
.stat-label {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Section Header Shared */
.section-header {
  text-align: center;
  margin-bottom: 50px;
}
.section-badge {
  display: inline-block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--primary);
  font-weight: 700;
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}
.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto;
}

/* Features Section */
.features-section {
  padding: 80px 0;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 34px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-highlight);
  box-shadow: var(--shadow-glow);
  background: var(--bg-card-hover);
}
.feature-icon-wrap {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: rgba(0, 242, 254, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  border: 1px solid rgba(0, 242, 254, 0.25);
  color: var(--primary);
}
.feature-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-main);
}
.feature-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* Speed / Nodes Live Status */
.nodes-section {
  padding: 80px 0;
  background: rgba(10, 16, 28, 0.4);
}
.nodes-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.node-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: var(--transition);
}
.node-card:hover {
  border-color: var(--primary);
  transform: translateY(-3px);
  box-shadow: 0 4px 20px rgba(0, 242, 254, 0.15);
}
.node-left {
  display: flex;
  align-items: center;
  gap: 12px;
}
.node-flag {
  font-size: 1.6rem;
  line-height: 1;
}
.node-name {
  font-weight: 600;
  font-size: 1rem;
}
.node-line {
  font-size: 0.78rem;
  color: var(--text-dim);
}
.node-ping {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--success);
  display: flex;
  align-items: center;
  gap: 5px;
}
.node-ping::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success);
}

/* ==========================================================================
   PRICING SECTION - ALL PRICES IN SAME ROW ("所有价格要同排")
   Desktop uses 4 columns grid so all 4 pricing plans are strictly side-by-side
   ========================================================================== */
.pricing-section {
  padding: 90px 0;
  position: relative;
}
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  align-items: stretch;
}
.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  transition: var(--transition);
  backdrop-filter: blur(12px);
}
.pricing-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-highlight);
  box-shadow: var(--shadow-glow);
}
.pricing-card.featured {
  background: var(--bg-card-featured);
  border: 2px solid var(--primary);
  box-shadow: var(--shadow-glow);
  transform: scale(1.02);
}
.pricing-card.featured:hover {
  transform: scale(1.02) translateY(-6px);
  box-shadow: 0 0 40px rgba(0, 242, 254, 0.45);
}
.badge-popular {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(90deg, #00f2fe, #4facfe);
  color: #030816;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 4px 14px;
  border-radius: var(--radius-full);
  letter-spacing: 1px;
  text-transform: uppercase;
  box-shadow: 0 2px 10px rgba(0, 242, 254, 0.4);
  white-space: nowrap;
}
.plan-header {
  margin-bottom: 20px;
  text-align: center;
}
.plan-name {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 6px;
}
.plan-subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
}
.plan-price-wrap {
  text-align: center;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
}
.plan-currency {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  vertical-align: top;
  margin-right: 2px;
}
.plan-price {
  font-size: 3.2rem;
  font-weight: 900;
  font-family: var(--font-mono);
  color: #ffffff;
  line-height: 1;
}
.plan-period {
  font-size: 0.9rem;
  color: var(--text-muted);
}
.plan-features {
  list-style: none;
  margin-bottom: 28px;
  flex-grow: 1;
}
.plan-feature-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.plan-feature-item svg {
  color: var(--primary);
  flex-shrink: 0;
}
.plan-feature-item.highlight {
  color: var(--text-main);
  font-weight: 600;
}
.plan-feature-item.disabled {
  color: var(--text-dim);
  text-decoration: line-through;
}
.plan-cta {
  margin-top: auto;
}

/* Tutorials & Articles Section */
.articles-section {
  padding: 80px 0;
}
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.article-preview-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}
.article-preview-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-highlight);
  box-shadow: var(--shadow-glow);
}
.article-card-body {
  padding: 28px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-bottom: 12px;
}
.article-tag {
  color: var(--primary);
  background: rgba(0, 242, 254, 0.1);
  padding: 2px 10px;
  border-radius: var(--radius-full);
  font-weight: 600;
}
.article-card-title {
  font-size: 1.22rem;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 12px;
}
.article-card-title a {
  color: var(--text-main);
  text-decoration: none;
  transition: color 0.2s ease;
}
.article-card-title a:hover {
  color: var(--primary);
}
.article-card-excerpt {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}
.article-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid var(--border-color);
}
.article-read-more {
  color: var(--primary);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.2s ease;
}
.article-read-more:hover {
  gap: 8px;
}

/* User Reviews / Testimonials */
.reviews-section {
  padding: 80px 0;
  background: rgba(10, 16, 28, 0.35);
}
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.review-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-highlight);
  box-shadow: 0 4px 20px rgba(0, 242, 254, 0.12);
}
.review-rating {
  color: #fbbf24;
  margin-bottom: 14px;
  font-size: 1.1rem;
  letter-spacing: 2px;
}
.review-quote {
  font-size: 0.95rem;
  color: var(--text-main);
  line-height: 1.7;
  margin-bottom: 20px;
  flex-grow: 1;
  font-style: italic;
}
.review-author {
  display: flex;
  align-items: center;
  gap: 12px;
}
.author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, #00f2fe, #7f00ff);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #ffffff;
  font-size: 1rem;
}
.author-info {
  display: flex;
  flex-direction: column;
}
.author-name {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-main);
}
.author-role {
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* FAQ Accordion Section */
.faq-section {
  padding: 80px 0;
}
.faq-container {
  max-width: 860px;
  margin: 0 auto;
}
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover {
  border-color: rgba(0, 242, 254, 0.3);
}
.faq-item.active {
  border-color: var(--primary);
  background: rgba(18, 28, 50, 0.8);
}
.faq-question {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 20px 24px;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-family: var(--font-sans);
}
.faq-icon {
  font-size: 1.4rem;
  color: var(--primary);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  flex-shrink: 0;
  line-height: 1;
}
.faq-item.active .faq-icon {
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease-out, padding 0.3s ease;
  padding: 0 24px;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.75;
}
.faq-item.active .faq-answer {
  max-height: 400px;
  padding: 0 24px 22px 24px;
}

/* Call to Action Banner */
.cta-banner-section {
  padding: 80px 0 100px;
}
.cta-banner {
  background: linear-gradient(135deg, rgba(0, 242, 254, 0.15) 0%, rgba(127, 0, 255, 0.2) 100%);
  border: 1px solid rgba(0, 242, 254, 0.35);
  border-radius: var(--radius-lg);
  padding: 56px 40px;
  text-align: center;
  backdrop-filter: blur(16px);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-glow);
}
.cta-banner-title {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 16px;
  color: #ffffff;
}
.cta-banner-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 640px;
  margin: 0 auto 32px;
}

/* Footer & External Links */
.footer {
  background: #05070d;
  border-top: 1px solid var(--border-color);
  padding: 70px 0 30px;
  margin-top: auto;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 50px;
}
.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-top: 16px;
  max-width: 320px;
}
.footer-col-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 18px;
  letter-spacing: 0.5px;
}
.footer-links {
  list-style: none;
}
.footer-links li {
  margin-bottom: 10px;
}
.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.88rem;
  transition: var(--transition);
}
.footer-links a:hover {
  color: var(--primary);
  padding-left: 4px;
}

/* External Link / Backlink Partner Badges */
.external-links-section {
  padding-top: 24px;
  margin-bottom: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}
.external-links-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-dim);
  margin-bottom: 14px;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.external-links-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.ext-link-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.82rem;
  transition: var(--transition);
}
.ext-link-badge:hover {
  background: rgba(0, 242, 254, 0.08);
  border-color: var(--primary);
  color: var(--primary);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-dim);
  font-size: 0.85rem;
  flex-wrap: wrap;
  gap: 16px;
}

/* Responsive Media Queries */
@media (max-width: 1100px) {
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .features-grid, .reviews-grid, .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .nodes-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 74px;
    left: 0;
    right: 0;
    background: rgba(7, 10, 19, 0.98);
    flex-direction: column;
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8);
    gap: 18px;
  }
  .nav-links.show {
    display: flex;
  }
  .mobile-toggle {
    display: block;
  }
  .nav-actions {
    display: none;
  }
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  .features-grid, .reviews-grid, .articles-grid {
    grid-template-columns: 1fr;
  }
  .nodes-grid {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}