/* 花云机场官网 Design System & Mt. Fuji Snow Mountain Light Theme */
:root {
  --primary-pink: #38bdf8;
  --primary-hover: #0284c7;
  --soft-pink-bg: #f0f9ff;
  --card-bg: rgba(255, 255, 255, 0.88);
  --card-border: rgba(186, 230, 253, 0.5);
  --glass-shadow: 0 10px 30px rgba(56, 189, 248, 0.12);
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --accent-gold: #f59e0b;
  --accent-green: #10b981;
  --accent-blue: #0284c7;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --container-max: 1240px;
  --radius-lg: 20px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --transition-fast: 0.25s ease;
  --transition-normal: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

body {
  font-family: var(--font-family);
  background: linear-gradient(180deg, #f0f9ff 0%, #e0f2fe 40%, #ffffff 100%);
  color: var(--text-primary);
  line-height: 1.6;
  position: relative;
  overflow-x: hidden;
}

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

.content-wrapper {
  position: relative;
  z-index: 1;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(255, 255, 255, 0.82);
  border-bottom: 1px solid rgba(255, 182, 193, 0.25);
  transition: var(--transition-normal);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--text-primary);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary-pink), #ffb3c1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.2rem;
  box-shadow: 0 4px 12px rgba(255, 117, 143, 0.3);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 28px;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition-fast);
  position: relative;
  padding: 6px 0;
}

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--primary-pink);
  transition: var(--transition-fast);
  border-radius: 2px;
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: var(--transition-normal);
}

.btn-primary {
  background: linear-gradient(135deg, #38bdf8 0%, #0284c7 100%);
  color: #ffffff;
  box-shadow: 0 8px 20px rgba(2, 132, 199, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 25px rgba(2, 132, 199, 0.45);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.9);
  color: var(--text-primary);
  border: 1px solid rgba(255, 182, 193, 0.6);
}

.btn-secondary:hover {
  background: var(--soft-pink-bg);
  border-color: var(--primary-pink);
  transform: translateY(-2px);
}

.btn-glow {
  position: relative;
  overflow: hidden;
}

.btn-glow::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.4) 0%, transparent 60%);
  transform: rotate(45deg);
  transition: 0.5s;
  opacity: 0;
}

.btn-glow:hover::before {
  opacity: 1;
}

/* Sections General */
section {
  padding: 90px 0;
  position: relative;
}

.section-title-wrap {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px auto;
}

.tag-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(255, 117, 143, 0.12);
  color: var(--primary-pink);
  border-radius: 30px;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-title {
  font-size: 2.3rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.3;
  margin-bottom: 16px;
}

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

/* Hero Section - Unique Floating Layout */
.hero-section {
  padding: 110px 0 90px 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: #ffffff;
  border: 1px solid var(--card-border);
  border-radius: 50px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  box-shadow: 0 4px 15px rgba(255, 182, 193, 0.2);
  margin-bottom: 24px;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-green);
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(46, 196, 182, 0.7);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(46, 196, 182, 0.7); }
  70% { box-shadow: 0 0 0 8px rgba(46, 196, 182, 0); }
  100% { box-shadow: 0 0 0 0 rgba(46, 196, 182, 0); }
}

.hero-title {
  font-size: 3.2rem;
  font-weight: 900;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: 24px;
}

.hero-title span {
  background: linear-gradient(135deg, #ff758f, #ff4d6d);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 36px;
  line-height: 1.7;
}

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

.hero-features-strip {
  display: flex;
  gap: 24px;
  border-top: 1px solid rgba(255, 182, 193, 0.3);
  padding-top: 24px;
}

.strip-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 600;
}

.strip-item i {
  color: var(--primary-pink);
  font-size: 1.1rem;
}

.hero-card-visual {
  position: relative;
}

.hero-glass-card {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--glass-shadow);
  position: relative;
}

.card-header-sim {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255, 182, 193, 0.2);
}

.sim-dots {
  display: flex;
  gap: 6px;
}

.sim-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot-red { background-color: #ff5f56; }
.dot-yellow { background-color: #ffbd2e; }
.dot-green { background-color: #27c93f; }

.speed-metric-box {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

.metric-item {
  background: rgba(255, 240, 245, 0.5);
  padding: 16px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 182, 193, 0.3);
}

.metric-val {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--primary-pink);
}

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

/* Dynamic Live Node Monitor Section */
.node-section {
  background: linear-gradient(180deg, rgba(255,255,255,0) 0%, rgba(255, 240, 245, 0.4) 100%);
}

.node-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 20px;
}

.node-card {
  background: #ffffff;
  border: 1px solid rgba(255, 182, 193, 0.3);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 4px 15px rgba(0,0,0,0.03);
  transition: var(--transition-normal);
}

.node-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary-pink);
  box-shadow: 0 8px 25px rgba(255, 117, 143, 0.15);
}

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

.node-flag {
  font-size: 1.8rem;
}

.node-name {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.node-type {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.node-status {
  text-align: right;
}

.ping-badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 700;
  background: rgba(46, 196, 182, 0.1);
  color: var(--accent-green);
}

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

.bento-card {
  background: #ffffff;
  border: 1px solid rgba(255, 182, 193, 0.35);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.02);
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.bento-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(255, 117, 143, 0.12);
  border-color: rgba(255, 117, 143, 0.5);
}

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

.bento-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--soft-pink-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-pink);
  font-size: 1.5rem;
  margin-bottom: 20px;
}

.bento-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.bento-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

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

.price-card {
  background: #ffffff;
  border: 1px solid rgba(255, 182, 193, 0.4);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.03);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: var(--transition-normal);
}

.price-card.featured {
  border: 2px solid var(--primary-pink);
  transform: scale(1.04);
  box-shadow: 0 15px 40px rgba(255, 117, 143, 0.2);
}

.featured-tag {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #ff758f, #ff4d6d);
  color: #ffffff;
  padding: 4px 16px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
}

.price-name {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.price-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.price-amount {
  font-size: 2.4rem;
  font-weight: 900;
  color: var(--primary-pink);
  margin-bottom: 24px;
}

.price-amount span {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.price-features {
  list-style: none;
  margin-bottom: 30px;
  flex-grow: 1;
}

.price-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.price-features i {
  color: var(--accent-green);
}

/* User Reviews Carousel / Grid */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.review-card {
  background: #ffffff;
  border: 1px solid rgba(255, 182, 193, 0.3);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.02);
}

.review-stars {
  color: #ffb703;
  margin-bottom: 16px;
}

.review-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-style: italic;
  margin-bottom: 20px;
  line-height: 1.6;
}

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

.user-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--soft-pink-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--primary-pink);
}

.user-info h4 {
  font-size: 0.95rem;
  font-weight: 700;
}

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

/* FAQ Accordion Section */
.faq-wrap {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: #ffffff;
  border: 1px solid rgba(255, 182, 193, 0.35);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  overflow: hidden;
  transition: var(--transition-fast);
}

.faq-question {
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 700;
  font-size: 1.05rem;
  cursor: pointer;
  color: var(--text-primary);
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0, 1, 0, 1);
  padding: 0 24px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

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

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

/* Knowledge Base / Tutorial Hub */
.kb-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.article-card {
  background: #ffffff;
  border: 1px solid rgba(255, 182, 193, 0.35);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: 0 8px 25px rgba(0,0,0,0.02);
  display: flex;
  flex-direction: column;
  transition: var(--transition-normal);
}

.article-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(255, 117, 143, 0.15);
  border-color: var(--primary-pink);
}

.article-tag {
  align-self: flex-start;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary-pink);
  background: var(--soft-pink-bg);
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 14px;
}

.article-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
  line-height: 1.4;
  text-decoration: none;
}

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

.article-excerpt {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.article-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  border-top: 1px solid rgba(255, 182, 193, 0.2);
  padding-top: 14px;
}

.article-link {
  color: var(--primary-pink);
  font-weight: 700;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Article Detail Pages */
.article-page {
  padding: 60px 0 90px 0;
}

.article-container {
  max-width: 860px;
  margin: 0 auto;
  background: #ffffff;
  padding: 48px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 182, 193, 0.35);
  box-shadow: 0 10px 30px rgba(0,0,0,0.03);
}

.breadcrumb {
  display: flex;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.breadcrumb a {
  color: var(--primary-pink);
  text-decoration: none;
}

.article-header h1 {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--text-primary);
  margin-bottom: 16px;
  line-height: 1.3;
}

.article-header-meta {
  display: flex;
  gap: 20px;
  color: var(--text-muted);
  font-size: 0.88rem;
  margin-bottom: 32px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255, 182, 193, 0.3);
}

.article-body {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-primary);
}

.article-body h2 {
  font-size: 1.5rem;
  font-weight: 800;
  margin: 36px 0 16px 0;
  color: var(--text-primary);
  border-left: 4px solid var(--primary-pink);
  padding-left: 12px;
}

.article-body h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 24px 0 12px 0;
}

.article-body p {
  margin-bottom: 18px;
  color: var(--text-secondary);
}

.article-body ul, .article-body ol {
  margin-bottom: 24px;
  padding-left: 24px;
  color: var(--text-secondary);
}

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

.article-cta-box {
  margin: 40px 0;
  padding: 32px;
  background: linear-gradient(135deg, #fff0f5 0%, #ffe5ec 100%);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 117, 143, 0.4);
  text-align: center;
}

.article-cta-box h3 {
  font-size: 1.4rem;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.article-cta-box p {
  color: var(--text-secondary);
  margin-bottom: 20px;
}

/* Footer */
.site-footer {
  background: #2b2d42;
  color: #edf2f4;
  padding: 70px 0 30px 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 50px;
}

.footer-brand p {
  color: #8d99ae;
  font-size: 0.9rem;
  margin-top: 14px;
  line-height: 1.6;
}

.footer-col h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: #ffffff;
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: 10px;
}

.footer-col a {
  color: #8d99ae;
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition-fast);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: #8d99ae;
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; }
  .bento-grid { grid-template-columns: 1fr 1fr; }
  .bento-card.wide { grid-column: span 1; }
  .pricing-grid { grid-template-columns: 1fr 1fr; }
  .kb-grid { grid-template-columns: 1fr 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .bento-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .kb-grid { grid-template-columns: 1fr; }
  .hero-title { font-size: 2.2rem; }
  .article-container { padding: 24px; }
  .footer-grid { grid-template-columns: 1fr; }
}