/* ==========================================================================
   Anyland云机场 (anyland1.cfd) - 官方落地页与文章矩阵全套样式表
   支持 100% 响应式移动端自适应、暗黑玻璃拟态、高转化率 UI 及 SEO 呈现
   ========================================================================== */

:root {
  --bg-dark: #090d16;
  --bg-card: rgba(15, 23, 42, 0.75);
  --bg-card-hover: rgba(30, 41, 59, 0.85);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-highlight: rgba(56, 189, 248, 0.35);
  
  --primary: #38bdf8;
  --primary-gradient: linear-gradient(135deg, #38bdf8 0%, #818cf8 50%, #c084fc 100%);
  --accent-glow: rgba(56, 189, 248, 0.25);
  --accent-pink: #f472b6;
  --accent-green: #34d399;
  
  --text-main: #f8fafc;
  --text-sub: #94a3b8;
  --text-muted: #64748b;
  
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-glow: 0 10px 30px -10px rgba(56, 189, 248, 0.3);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-main);
  scroll-behavior: smooth;
  line-height: 1.6;
}

body {
  overflow-x: hidden;
  background: radial-gradient(circle at 50% 0%, #1e1b4b 0%, #090d16 75%);
  min-height: 100vh;
}

/* 常用基础类 */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.text-gradient {
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-padding {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 50px auto;
}

.section-tag {
  display: inline-block;
  padding: 5px 16px;
  background: rgba(56, 189, 248, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.3);
  border-radius: 20px;
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 14px;
  text-transform: uppercase;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.3;
}

.section-desc {
  color: var(--text-sub);
  font-size: 1.05rem;
}

/* 按钮通用组件 */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--primary-gradient);
  color: #fff;
  font-weight: 700;
  padding: 14px 32px;
  border-radius: 50px;
  text-decoration: none;
  box-shadow: var(--shadow-glow);
  transition: var(--transition);
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 35px -5px rgba(56, 189, 248, 0.5);
  opacity: 0.96;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  font-weight: 600;
  padding: 13px 28px;
  border-radius: 50px;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--border-highlight);
  color: #fff;
}

/* Header Navbar */
.header-dock {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 40px);
  max-width: 1200px;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: 50px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  transition: var(--transition);
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-main);
  font-weight: 800;
  font-size: 1.15rem;
}

.brand-logo img {
  width: 34px;
  height: 34px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

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

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

.header-cta-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.mobile-menu-btn {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-main);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 4px;
}

/* Hero Section */
.hero-section {
  padding-top: 160px;
  padding-bottom: 90px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 50px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  border-radius: 30px;
  color: var(--primary);
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 24px;
}

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

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(52, 211, 153, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(52, 211, 153, 0); }
}

.hero-title {
  font-size: 3.1rem;
  font-weight: 900;
  line-height: 1.25;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-sub);
  margin-bottom: 32px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding-top: 30px;
  border-top: 1px solid var(--border-color);
}

.stat-number {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--primary);
}

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

/* Hero Glass Graphic Card */
.hero-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

.hero-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--accent-green);
  font-weight: 600;
}

.hero-card-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.hero-card-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.95rem;
}

.hero-card-list .icon {
  font-size: 1.2rem;
  line-height: 1;
}

/* Ping Monitor Section */
.ping-card-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.ping-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.ping-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.ping-item:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--border-highlight);
}

.ping-info {
  display: flex;
  align-items: center;
  gap: 14px;
}

.ping-flag {
  font-size: 1.6rem;
}

.ping-name {
  font-weight: 700;
  font-size: 0.98rem;
}

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

.ping-badge {
  text-align: right;
}

.ping-val {
  font-family: monospace;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--accent-green);
}

.ping-bar-bg {
  width: 80px;
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  margin-top: 6px;
  overflow: hidden;
}

.ping-bar-fill {
  height: 100%;
  background: var(--accent-green);
  border-radius: 10px;
  transition: width 0.5s ease;
}

/* Bento Grid Features */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

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

.bento-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-highlight);
  background: var(--bg-card-hover);
  box-shadow: var(--shadow-glow);
}

.bento-card.span-2 {
  grid-column: span 2;
}

.bento-icon {
  font-size: 2.2rem;
  margin-bottom: 20px;
}

.bento-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: #fff;
}

.bento-card p {
  color: var(--text-sub);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* Pricing Grid */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  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);
}

.pricing-card:hover {
  border-color: var(--border-highlight);
  transform: translateY(-6px);
}

.pricing-card.featured {
  background: rgba(30, 41, 59, 0.9);
  border: 2px solid var(--primary);
  box-shadow: var(--shadow-glow);
}

.featured-tag {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary-gradient);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 800;
  padding: 4px 16px;
  border-radius: 20px;
  white-space: nowrap;
}

.plan-title {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.plan-subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  min-height: 38px;
}

.plan-price {
  font-size: 2.5rem;
  font-weight: 900;
  color: #fff;
  margin-bottom: 24px;
}

.plan-price .currency {
  font-size: 1.3rem;
  vertical-align: super;
  margin-right: 2px;
}

.plan-price .period {
  font-size: 0.9rem;
  color: var(--text-sub);
  font-weight: 500;
}

.plan-features {
  list-style: none;
  margin-bottom: 30px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.plan-features li {
  font-size: 0.9rem;
  color: var(--text-sub);
  display: flex;
  align-items: center;
  gap: 8px;
}

.plan-features .check {
  color: var(--accent-green);
  font-weight: 800;
}

.pricing-card .btn-primary,
.pricing-card .btn-secondary {
  width: 100%;
}

/* Articles Section Matrix */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
}

.article-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-highlight);
  background: var(--bg-card-hover);
}

.article-tag {
  display: inline-block;
  padding: 4px 10px;
  background: rgba(129, 140, 248, 0.15);
  border-radius: 6px;
  color: #818cf8;
  font-size: 0.78rem;
  font-weight: 700;
  margin-bottom: 14px;
}

.article-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 12px;
  color: #fff;
}

.article-card p {
  font-size: 0.9rem;
  color: var(--text-sub);
  line-height: 1.6;
  margin-bottom: 20px;
}

.article-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-color);
  padding-top: 14px;
}

.read-more-link {
  color: var(--primary);
  font-weight: 600;
}

/* User Reviews Section */
.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;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.review-stars {
  color: #f59e0b;
  font-size: 1.1rem;
  margin-bottom: 14px;
}

.review-content {
  font-size: 0.95rem;
  color: var(--text-sub);
  line-height: 1.65;
  margin-bottom: 20px;
  font-style: italic;
}

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

.review-user .avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--primary-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: #fff;
  font-size: 1rem;
}

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

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

/* FAQ Accordion Section */
.faq-list {
  max-width: 850px;
  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;
  font-weight: 700;
  font-size: 1.05rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #fff;
  user-select: none;
}

.faq-toggle-icon {
  font-size: 0.8rem;
  transition: transform 0.3s ease;
  color: var(--primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 24px;
  color: var(--text-sub);
  font-size: 0.95rem;
  line-height: 1.7;
  transition: all 0.3s ease;
}

.faq-item.active {
  border-color: var(--border-highlight);
  background: rgba(30, 41, 59, 0.8);
}

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

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 24px 20px 24px;
}

/* Footer Section & PBN Backlink Pipeline */
.site-footer {
  background: #050811;
  border-top: 1px solid var(--border-color);
  padding: 60px 0 30px 0;
  font-size: 0.9rem;
  color: var(--text-sub);
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  text-align: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.1rem;
  color: #fff;
}

.footer-brand img {
  width: 30px;
  height: 30px;
}

.footer-nav {
  display: flex;
  align-items: center;
  gap: 20px;
  list-style: none;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-nav a {
  color: var(--text-sub);
  text-decoration: none;
  transition: var(--transition);
}

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

/* 低调美观小字号友情链接区 (PBN精准输血管道) */
.friend-links-zone {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 10px;
  padding: 12px 24px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px dashed rgba(255, 255, 255, 0.08);
  border-radius: 30px;
}

.friend-links-title {
  color: var(--text-muted);
  font-weight: 600;
}

.friend-links-group {
  display: flex;
  align-items: center;
  gap: 16px;
}

.friend-links-group a {
  color: var(--text-sub);
  text-decoration: none;
  transition: var(--transition);
  font-weight: 500;
}

.friend-links-group a:hover {
  color: var(--primary);
  text-decoration: underline;
}

.footer-copyright {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 10px;
}

/* ==========================================================================
   文章页面专属样式 (Article Pages Layout & Typography)
   ========================================================================== */
.article-header-section {
  padding-top: 150px;
  padding-bottom: 40px;
  background: rgba(15, 23, 42, 0.5);
  border-bottom: 1px solid var(--border-color);
}

.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.breadcrumbs a {
  color: var(--text-sub);
  text-decoration: none;
}

.breadcrumbs a:hover {
  color: var(--primary);
}

.article-main-title {
  font-size: 2.4rem;
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 20px;
}

.article-post-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 0.88rem;
  color: var(--text-sub);
}

.article-container {
  display: grid;
  grid-template-columns: 2.8fr 1.2fr;
  gap: 40px;
  padding: 60px 0;
}

.article-body {
  font-size: 1.05rem;
  line-height: 1.85;
  color: #e2e8f0;
}

.article-body h2 {
  font-size: 1.65rem;
  font-weight: 800;
  margin: 36px 0 18px 0;
  color: #fff;
  border-left: 4px solid var(--primary);
  padding-left: 14px;
}

.article-body h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin: 28px 0 14px 0;
  color: var(--primary);
}

.article-body p {
  margin-bottom: 20px;
}

.article-body ul, .article-body ol {
  margin: 0 0 24px 24px;
  color: var(--text-sub);
}

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

.article-body blockquote {
  background: rgba(56, 189, 248, 0.08);
  border-left: 4px solid var(--primary);
  padding: 18px 24px;
  margin: 24px 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: #f1f5f9;
  font-style: italic;
}

.article-cta-box {
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.9) 0%, rgba(15, 23, 42, 0.9) 100%);
  border: 1px solid var(--border-highlight);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  margin: 40px 0;
  box-shadow: var(--shadow-glow);
}

.article-cta-box h4 {
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.article-cta-box p {
  color: var(--text-sub);
  margin-bottom: 24px;
}

.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

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

.widget-title {
  font-size: 1.1rem;
  font-weight: 800;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-color);
  color: #fff;
}

.related-articles-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.related-articles-list a {
  color: var(--text-sub);
  text-decoration: none;
  font-size: 0.92rem;
  line-height: 1.45;
  display: flex;
  gap: 8px;
  transition: var(--transition);
}

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

/* 响应式适配 (Responsive Mobile Media Queries) */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .bento-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .bento-card.span-2 {
    grid-column: span 2;
  }
  
  .articles-grid,
  .reviews-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .article-container {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .header-dock {
    top: 12px;
    width: calc(100% - 24px);
    padding: 10px 18px;
  }
  
  .nav-links {
    position: fixed;
    top: 70px;
    left: 12px;
    right: 12px;
    background: rgba(15, 23, 42, 0.96);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    flex-direction: column;
    gap: 18px;
    display: none;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
  }
  
  .nav-links.active {
    display: flex;
  }
  
  .mobile-menu-btn {
    display: block;
  }

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

  .hero-stats {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  
  .ping-grid {
    grid-template-columns: 1fr;
  }
  
  .pricing-grid,
  .bento-grid,
  .articles-grid,
  .reviews-grid {
    grid-template-columns: 1fr;
  }
  
  .bento-card.span-2 {
    grid-column: span 1;
  }
  
  .friend-links-zone {
    flex-direction: column;
    gap: 8px;
  }
}