/* ==========================================================================
   WgetCloud Official Landing Page - CSS Architecture
   Theme: High-Tech Dark Mode (Purple Glow & Electric Cyan)
   Target Domain: wgetcloud1.cyou
   ========================================================================== */

:root {
  --bg-dark: #090d16;
  --bg-card: rgba(18, 24, 38, 0.75);
  --bg-card-hover: rgba(26, 35, 56, 0.9);
  --bg-glass: rgba(15, 23, 42, 0.65);
  --border-color: rgba(139, 92, 246, 0.2);
  --border-glow: rgba(139, 92, 246, 0.5);
  
  --primary: #8b5cf6;
  --primary-hover: #7c3aed;
  --primary-light: #a78bfa;
  --accent-cyan: #06b6d4;
  --accent-cyan-glow: rgba(6, 182, 212, 0.4);
  --accent-green: #10b981;
  --accent-pink: #ec4899;
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --container-width: 1240px;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 6px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-family);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

/* Background Glowing Orbs */
.bg-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.35;
}

.bg-orb-1 {
  top: -100px;
  left: 20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, #7c3aed 0%, transparent 70%);
}

.bg-orb-2 {
  top: 400px;
  right: -100px;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, #06b6d4 0%, transparent 70%);
}

.bg-orb-3 {
  top: 1800px;
  left: -150px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, #8b5cf6 0%, transparent 70%);
}

/* Mouse Trail Canvas */
#mouse-trail-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 9999;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* Typography Helpers */
.text-gradient {
  background: linear-gradient(135deg, #a78bfa 0%, #06b6d4 50%, #ec4899 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.text-gradient-purple {
  background: linear-gradient(135deg, #c084fc 0%, #8b5cf6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, #8b5cf6 0%, #6366f1 100%);
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(139, 92, 246, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(139, 92, 246, 0.6);
  background: linear-gradient(135deg, #7c3aed 0%, #4f46e5 100%);
}

.btn-outline {
  background: rgba(30, 41, 59, 0.6);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(10px);
}

.btn-outline:hover {
  border-color: var(--primary-light);
  background: rgba(47, 63, 94, 0.8);
  color: #fff;
  transform: translateY(-2px);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.9rem;
}

/* Header & Nav */
.header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  backdrop-filter: blur(16px);
  background: rgba(9, 13, 22, 0.85);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 16px 0;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: #fff;
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, #8b5cf6 0%, #06b6d4 100%);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  color: #fff;
  font-size: 1.2rem;
  box-shadow: 0 0 15px rgba(139, 92, 246, 0.5);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition);
}

.nav-links a:hover {
  color: var(--text-main);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero Section */
.hero {
  padding: 80px 0 100px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 30px;
  background: rgba(139, 92, 246, 0.15);
  border: 1px solid rgba(139, 92, 246, 0.3);
  color: var(--primary-light);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
}

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

@keyframes pulse {
  0% { opacity: 0.4; }
  50% { opacity: 1; }
  100% { opacity: 0.4; }
}

.hero-title {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -1px;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 36px;
  max-width: 560px;
}

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

.hero-features {
  display: flex;
  align-items: center;
  gap: 24px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.hero-feature-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.hero-feature-item svg {
  color: var(--accent-cyan);
}

/* Hero Network Dashboard Card (Matches User Image) */
.network-dashboard-card {
  background: rgba(13, 18, 30, 0.85);
  border: 1px solid rgba(139, 92, 246, 0.25);
  border-radius: 20px;
  padding: 24px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), inset 0 0 20px rgba(139, 92, 246, 0.05);
  backdrop-filter: blur(20px);
}

.dash-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.dash-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-green);
}

.dash-version {
  font-size: 0.85rem;
  color: var(--text-dim);
  font-weight: 600;
}

.dash-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 20px;
}

.metric-box {
  background: rgba(22, 30, 48, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  padding: 14px;
}

.metric-label {
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.metric-value {
  font-size: 1.4rem;
  font-weight: 800;
  color: #fff;
}

.dash-chart-container {
  height: 110px;
  width: 100%;
  margin-bottom: 20px;
  background: rgba(18, 25, 41, 0.5);
  border-radius: var(--radius-md);
  padding: 8px;
  position: relative;
  overflow: hidden;
}

#bgp-chart-canvas {
  width: 100%;
  height: 100%;
}

.dash-nodes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.node-chip {
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid rgba(6, 182, 212, 0.3);
  border-radius: var(--radius-md);
  padding: 10px;
  text-align: center;
}

.node-name {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-main);
}

.node-ping {
  font-size: 0.75rem;
  color: var(--accent-cyan);
  margin-top: 2px;
}

/* Section Common */
.section {
  padding: 90px 0;
}

.section-title {
  text-align: center;
  font-size: 2.3rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.section-desc {
  text-align: center;
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 640px;
  margin: 0 auto 56px;
}

/* Feature Cards Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-glow);
  background: var(--bg-card-hover);
  box-shadow: 0 10px 30px rgba(139, 92, 246, 0.15);
}

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.2) 0%, rgba(6, 182, 212, 0.2) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--primary-light);
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-text {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Pricing Section - Horizontal Single Row Layout ("价格格式你帮我弄成一排") */
.pricing-section {
  background: linear-gradient(180deg, rgba(9, 13, 22, 0) 0%, rgba(17, 24, 39, 0.5) 50%, rgba(9, 13, 22, 0) 100%);
}

.pricing-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  align-items: stretch;
}

@media (max-width: 1100px) {
  .pricing-row {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .pricing-row {
    grid-template-columns: 1fr;
  }
}

.price-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px 22px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  transition: var(--transition);
}

.price-card.popular {
  border-color: var(--primary-light);
  box-shadow: 0 0 35px rgba(139, 92, 246, 0.25);
  background: linear-gradient(180deg, rgba(28, 32, 54, 0.9) 0%, rgba(18, 24, 38, 0.8) 100%);
}

.popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 4px 14px;
  border-radius: 20px;
  letter-spacing: 0.5px;
}

.price-card:hover {
  transform: translateY(-6px);
  border-color: var(--primary-light);
}

.price-plan-name {
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.price-amount-box {
  margin: 16px 0;
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.price-currency {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--primary-light);
}

.price-val {
  font-size: 2.4rem;
  font-weight: 900;
  line-height: 1;
  color: #fff;
}

.price-period {
  font-size: 0.85rem;
  color: var(--text-dim);
}

.price-features-list {
  list-style: none;
  margin: 20px 0 28px;
}

.price-features-list li {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.price-features-list li svg {
  color: var(--accent-cyan);
  flex-shrink: 0;
}

/* Articles Section Matrix */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 24px;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.article-card:hover {
  border-color: var(--accent-cyan);
  transform: translateY(-4px);
}

.article-tag {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 4px;
  background: rgba(6, 182, 212, 0.15);
  color: var(--accent-cyan);
  font-size: 0.75rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.article-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.4;
}

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

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

.article-snippet {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 20px;
}

.article-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-dim);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 14px;
}

/* Customer Reviews / Testimonials Section */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.review-stars {
  color: #f59e0b;
  margin-bottom: 12px;
  display: flex;
  gap: 4px;
}

.review-text {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  font-style: italic;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, #8b5cf6, #06b6d4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #fff;
  font-size: 1.1rem;
}

.user-name {
  font-size: 0.95rem;
  font-weight: 700;
}

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

/* FAQ Accordion Section */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

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

.faq-question {
  padding: 20px 24px;
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  color: var(--text-main);
  font-size: 1.05rem;
  font-weight: 700;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}

.faq-question svg {
  transition: transform 0.3s ease;
  color: var(--primary-light);
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0, 1, 0, 1);
  padding: 0 24px;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 0 24px 20px;
  transition: max-height 0.35s ease-in-out;
}

/* ==========================================================================
   Core Task 2: Footer PBN Link Injection Pipeline (页脚 PBN 权重管道)
   ========================================================================== */
.footer {
  background-color: #060911;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 60px 0 40px;
  margin-top: 80px;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.footer-logo {
  margin-bottom: 20px;
}

.footer-nav {
  display: flex;
  gap: 24px;
  margin-bottom: 36px;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition);
}

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

/* PBN Friendly Link Box (Low profile, integrated, small font) */
.pbn-links-box {
  width: 100%;
  max-width: 1000px;
  margin: 24px auto 32px;
  padding: 16px 20px;
  background: rgba(13, 18, 30, 0.5);
  border: 1px dashed rgba(139, 92, 246, 0.15);
  border-radius: var(--radius-md);
}

.pbn-title {
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-bottom: 10px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.pbn-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 20px;
}

.pbn-link {
  color: #64748b;
  text-decoration: none;
  font-size: 0.82rem;
  transition: var(--transition);
}

.pbn-link:hover {
  color: var(--primary-light);
  text-decoration: underline;
}

.footer-copyright {
  font-size: 0.85rem;
  color: var(--text-dim);
}

/* Article Template Custom Styles */
.article-container {
  max-width: 860px;
  margin: 40px auto 80px;
  padding: 0 24px;
}

.article-header {
  margin-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-bottom: 24px;
}

.article-body {
  color: #cbd5e1;
  font-size: 1.05rem;
  line-height: 1.85;
}

.article-body h2 {
  font-size: 1.7rem;
  color: #fff;
  margin: 36px 0 16px;
  border-left: 4px solid var(--primary-light);
  padding-left: 12px;
}

.article-body h3 {
  font-size: 1.3rem;
  color: var(--primary-light);
  margin: 24px 0 12px;
}

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

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

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

.article-cta-box {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.15) 0%, rgba(6, 182, 212, 0.15) 100%);
  border: 1px solid var(--primary-light);
  border-radius: var(--radius-lg);
  padding: 30px;
  margin: 40px 0;
  text-align: center;
}

.article-cta-title {
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 10px;
}

/* Mobile Responsive Adjustments */
@media (max-width: 768px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 32px;
  }

  .hero-title {
    font-size: 2.2rem;
  }

  .hero-subtitle {
    margin: 0 auto 28px;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-features {
    justify-content: center;
    flex-wrap: wrap;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: rgba(9, 13, 22, 0.95);
    flex-direction: column;
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
  }

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

  .mobile-toggle {
    display: block;
  }
}