/* 
 * 九云机场官网 - jiuyunjc.my 
 * Vaporwave & Synthwave Cyber Neon Aesthetic Style
 */

:root {
  --bg-gradient: linear-gradient(180deg, #090217 0%, #150833 40%, #260a52 75%, #0c041c 100%);
  --grid-color: rgba(255, 0, 127, 0.15);
  --grid-cyan: rgba(0, 240, 255, 0.12);
  --neon-pink: #ff007f;
  --neon-purple: #9d00ff;
  --neon-cyan: #00f0ff;
  --neon-yellow: #ffb700;
  --neon-blue: #3b82f6;
  
  --card-bg: rgba(18, 24, 41, 0.85);
  --card-border: rgba(60, 80, 120, 0.4);
  --card-hover-border: rgba(0, 240, 255, 0.6);
  
  --glow-pink: 0 0 20px rgba(255, 0, 127, 0.5);
  --glow-cyan: 0 0 20px rgba(0, 240, 255, 0.5);
  --glow-purple: 0 0 25px rgba(157, 0, 255, 0.5);
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text-main);
  line-height: 1.7;
  position: relative;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Dynamic Synthwave Grid Horizon Effect */
.synth-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.synth-sun {
  position: absolute;
  top: 15%;
  right: 10%;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: linear-gradient(180deg, #ffe600 0%, #ff007f 70%, #9d00ff 100%);
  box-shadow: 0 0 60px rgba(255, 0, 127, 0.6), 0 0 100px rgba(255, 230, 0, 0.3);
  opacity: 0.85;
  z-index: 1;
  mask-image: linear-gradient(to bottom, #000 0%, #000 50%, transparent 52%, #000 54%, #000 65%, transparent 67%, #000 69%, #000 80%, transparent 82%, #000 84%);
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, #000 55%, transparent 57%, #000 60%, #000 70%, transparent 72%, #000 75%, #000 85%, transparent 87%, #000 90%);
}

.grid-floor {
  position: absolute;
  bottom: -30%;
  left: -50%;
  width: 200%;
  height: 100%;
  background-image: 
    linear-gradient(to right, var(--grid-color) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-color) 1px, transparent 1px);
  background-size: 50px 50px;
  transform: perspective(500px) rotateX(75deg);
  animation: gridMove 20s linear infinite;
  opacity: 0.7;
}

@keyframes gridMove {
  0% { transform: perspective(500px) rotateX(75deg) translateY(0); }
  100% { transform: perspective(500px) rotateX(75deg) translateY(50px); }
}

/* Floating Light Particles */
.particle-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(40px);
  pointer-events: none;
  opacity: 0.35;
  animation: floatOrb 12s ease-in-out infinite alternate;
}

.orb-1 {
  width: 400px;
  height: 400px;
  background: var(--neon-pink);
  top: -100px;
  left: -100px;
}

.orb-2 {
  width: 450px;
  height: 450px;
  background: var(--neon-purple);
  bottom: 10%;
  right: -100px;
  animation-delay: -5s;
}

.orb-3 {
  width: 300px;
  height: 300px;
  background: var(--neon-cyan);
  top: 40%;
  left: 20%;
  animation-delay: -8s;
}

@keyframes floatOrb {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(30px, 40px) scale(1.1); }
  100% { transform: translate(-20px, -30px) scale(0.95); }
}

/* Header Navigation */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(9, 2, 23, 0.9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 0, 127, 0.3);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.6);
}

.nav-container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0.9rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.6rem;
  font-weight: 800;
  text-decoration: none;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 10px;
  letter-spacing: 1px;
}

.logo-neon {
  background: linear-gradient(90deg, #ff007f, #00f0ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 15px rgba(255, 0, 127, 0.4);
}

.nav-links {
  display: flex;
  gap: 1.6rem;
  list-style: none;
  align-items: center;
}

.nav-links a {
  text-decoration: none;
  color: #cbd5e1;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.3s ease;
}

.nav-links a:hover {
  color: var(--neon-cyan);
  text-shadow: 0 0 10px var(--neon-cyan);
}

.nav-btn {
  background: linear-gradient(90deg, #ff007f, #9d00ff);
  color: #fff !important;
  padding: 0.5rem 1.2rem;
  border-radius: 8px;
  box-shadow: 0 0 15px rgba(255, 0, 127, 0.4);
  transition: all 0.3s ease !important;
}

.nav-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 25px rgba(255, 0, 127, 0.7);
}

/* Keyword Ticker Tape Bar */
.keyword-bar {
  background: rgba(15, 8, 38, 0.95);
  border-bottom: 1px solid rgba(0, 240, 255, 0.2);
  padding: 0.5rem 0;
  overflow: hidden;
  position: relative;
}

.keyword-scroll {
  display: flex;
  gap: 1.5rem;
  white-space: nowrap;
  animation: scrollText 35s linear infinite;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1rem;
}

.kw-tag {
  color: #94a3b8;
  font-size: 0.85rem;
  text-decoration: none;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: all 0.3s ease;
}

.kw-tag:hover {
  color: #fff;
  border-color: var(--neon-pink);
  background: rgba(255, 0, 127, 0.15);
  box-shadow: 0 0 10px rgba(255, 0, 127, 0.3);
}

/* Container & Sections */
.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  position: relative;
  z-index: 10;
}

/* Hero Section */
.hero {
  text-align: center;
  padding: 4rem 1rem 3rem 1rem;
  position: relative;
}

.hero-badge {
  display: inline-block;
  background: rgba(255, 0, 127, 0.15);
  border: 1px solid var(--neon-pink);
  color: #ff85c0;
  padding: 0.4rem 1.2rem;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  box-shadow: 0 0 15px rgba(255, 0, 127, 0.3);
}

.hero h1 {
  font-size: 3.2rem;
  font-weight: 900;
  letter-spacing: -0.5px;
  line-height: 1.2;
  margin-bottom: 1.2rem;
  background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 50%, #00f0ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 30px rgba(0, 240, 255, 0.3);
}

.hero p {
  font-size: 1.15rem;
  color: #cbd5e1;
  max-width: 800px;
  margin: 0 auto 2.2rem auto;
}

.hero-btns {
  display: flex;
  gap: 1.2rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-primary {
  background: linear-gradient(90deg, #ff007f 0%, #9d00ff 100%);
  color: #fff;
  padding: 0.9rem 2.2rem;
  font-size: 1.05rem;
  font-weight: 700;
  border-radius: 10px;
  text-decoration: none;
  box-shadow: 0 0 25px rgba(255, 0, 127, 0.5);
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 40px rgba(255, 0, 127, 0.8);
}

.btn-secondary {
  background: rgba(30, 41, 59, 0.8);
  border: 1px solid var(--neon-cyan);
  color: var(--neon-cyan);
  padding: 0.9rem 2rem;
  font-size: 1.05rem;
  font-weight: 700;
  border-radius: 10px;
  text-decoration: none;
  transition: all 0.3s ease;
}

.btn-secondary:hover {
  background: rgba(0, 240, 255, 0.15);
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
  transform: translateY(-3px);
}

/* Features Grid */
.section-title {
  text-align: center;
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 2.5rem;
  background: linear-gradient(90deg, #ffffff, #00f0ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  margin-bottom: 4rem;
}

.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 2rem 1.5rem;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.feature-card:hover {
  border-color: var(--neon-cyan);
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 240, 255, 0.2);
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-size: 1.3rem;
  color: #fff;
  margin-bottom: 0.6rem;
}

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

/* Image 2 Style Pricing Cards */
.pricing-section {
  padding: 3rem 0;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.8rem;
  margin-top: 2rem;
}

.price-card {
  background: #121829; /* Matches Image 2 exact navy blue-grey tint */
  border: 1px solid #263352;
  border-radius: 16px;
  padding: 2.2rem 1.8rem;
  text-align: center;
  position: relative;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.price-card:hover {
  border-color: #3b82f6;
  box-shadow: 0 0 25px rgba(59, 130, 246, 0.3);
  transform: translateY(-6px);
}

.price-card.popular {
  border: 1px solid #3b82f6;
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.25);
}

.popular-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: #3b82f6;
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.25rem 1rem;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.price-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 1.2rem;
}

.price-amount {
  font-size: 2.4rem;
  font-weight: 800;
  color: #3b82f6; /* Image 2 vibrant cyan-blue accent */
  margin-bottom: 1rem;
}

.price-amount span {
  font-size: 1.1rem;
  color: var(--text-muted);
  font-weight: 400;
}

.price-traffic {
  font-size: 1.1rem;
  color: #cbd5e1;
  font-weight: 600;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.price-features {
  list-style: none;
  text-align: left;
  margin-bottom: 2rem;
}

.price-features li {
  padding: 0.5rem 0;
  color: #94a3b8;
  font-size: 0.92rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.price-features li::before {
  content: "✓";
  color: #3b82f6;
  font-weight: bold;
}

.btn-card {
  display: block;
  background: #1e293b;
  color: #fff;
  text-decoration: none;
  padding: 0.85rem 1rem;
  border-radius: 10px;
  font-weight: 700;
  transition: all 0.3s ease;
  border: 1px solid #334155;
}

.price-card:hover .btn-card, .price-card.popular .btn-card {
  background: #3b82f6;
  border-color: #3b82f6;
  box-shadow: 0 0 15px rgba(59, 130, 246, 0.4);
}

/* Node List Table Section */
.node-section {
  padding: 3rem 0;
}

.node-table-wrapper {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  overflow-x: auto;
  backdrop-filter: blur(10px);
}

.node-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.node-table th {
  background: rgba(30, 41, 59, 0.7);
  color: var(--neon-cyan);
  padding: 1.1rem 1.2rem;
  font-size: 0.95rem;
  font-weight: 700;
  border-bottom: 1px solid var(--card-border);
}

.node-table td {
  padding: 1rem 1.2rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.92rem;
  color: #cbd5e1;
}

.node-table tr:hover td {
  background: rgba(0, 240, 255, 0.05);
}

.badge-iplc {
  background: rgba(255, 0, 127, 0.2);
  color: #ff66b2;
  border: 1px solid var(--neon-pink);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 600;
}

.badge-speed {
  color: #10b981;
  font-weight: 700;
}

/* Knowledge Base Article List */
.articles-section {
  padding: 3rem 0;
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.8rem;
}

.article-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 1.8rem;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.article-card:hover {
  border-color: var(--neon-pink);
  transform: translateY(-4px);
  box-shadow: 0 8px 25px rgba(255, 0, 127, 0.25);
}

.article-meta {
  color: var(--neon-cyan);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.6rem;
}

.article-card h3 {
  font-size: 1.2rem;
  line-height: 1.4;
  margin-bottom: 0.8rem;
}

.article-card h3 a {
  color: #fff;
  text-decoration: none;
  transition: color 0.3s ease;
}

.article-card h3 a:hover {
  color: var(--neon-pink);
}

.article-summary {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1.2rem;
}

.read-more {
  color: var(--neon-cyan);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: gap 0.3s ease;
}

.read-more:hover {
  gap: 10px;
  color: #fff;
}

/* User Reviews Section */
.reviews-section {
  padding: 3rem 0;
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.6rem;
}

.review-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 1.6rem;
}

.review-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 1rem;
}

.user-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--neon-pink), var(--neon-cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: #fff;
  font-size: 1.1rem;
}

.user-info h4 {
  color: #fff;
  font-size: 1rem;
}

.user-info .stars {
  color: #ffb700;
  font-size: 0.85rem;
}

.review-text {
  color: var(--text-muted);
  font-size: 0.92rem;
  font-style: italic;
}

/* Accordion FAQ Section */
.faq-section {
  padding: 3rem 0;
}

.faq-list {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color 0.3s ease;
}

.faq-item:hover {
  border-color: var(--neon-cyan);
}

.faq-question {
  padding: 1.2rem 1.5rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-question::after {
  content: "+";
  font-size: 1.5rem;
  color: var(--neon-cyan);
  transition: transform 0.3s ease;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  background: rgba(10, 15, 30, 0.6);
  color: #cbd5e1;
  font-size: 0.95rem;
  padding: 0 1.5rem;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 1rem 1.5rem 1.5rem 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* Article Page Layout */
.article-header {
  padding: 3rem 0 1.5rem 0;
  text-align: center;
}

.article-header h1 {
  font-size: 2.4rem;
  font-weight: 800;
  margin-bottom: 1rem;
  color: #fff;
}

.article-content {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 2.5rem;
  backdrop-filter: blur(12px);
  margin-bottom: 3rem;
  font-size: 1.05rem;
  line-height: 1.8;
  color: #e2e8f0;
}

.article-content h2 {
  font-size: 1.6rem;
  color: var(--neon-cyan);
  margin: 2rem 0 1rem 0;
  border-bottom: 1px solid rgba(0, 240, 255, 0.2);
  padding-bottom: 0.4rem;
}

.article-content h3 {
  font-size: 1.3rem;
  color: var(--neon-pink);
  margin: 1.5rem 0 0.8rem 0;
}

.article-content p {
  margin-bottom: 1.2rem;
}

.article-content ul, .article-content ol {
  margin: 1rem 0 1.5rem 1.5rem;
}

.article-content li {
  margin-bottom: 0.5rem;
}

.article-cta-box {
  background: linear-gradient(135deg, rgba(255, 0, 127, 0.15), rgba(0, 240, 255, 0.15));
  border: 1px solid var(--neon-pink);
  border-radius: 12px;
  padding: 1.8rem;
  text-align: center;
  margin: 2rem 0;
}

/* Footer */
.footer {
  background: #06020e;
  border-top: 1px solid rgba(255, 0, 127, 0.2);
  padding: 3rem 1.5rem 2rem 1.5rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  position: relative;
  z-index: 10;
}

.footer-container {
  max-width: 1240px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.footer-col h4 {
  color: #fff;
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

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

.footer-col li {
  margin-bottom: 0.5rem;
}

.footer-col a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-col a:hover {
  color: var(--neon-cyan);
}

.footer-bottom {
  text-align: center;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* Mobile Responsive */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.2rem;
  }
  
  .nav-links {
    display: none;
  }
  
  .synth-sun {
    width: 160px;
    height: 160px;
    right: 5%;
  }
  
  .article-content {
    padding: 1.5rem;
  }
}