/* ==========================================================================
   MOJIE AIRPORT - CYBERPUNK RAINY ALLEY DESIGN SYSTEM (赛博雨夜风)
   Visual tone: 雨夜深蓝、积水反光倒影、高饱和度故障霓虹 (Neon Glitch)
   ========================================================================== */

:root {
  --bg-deep: #030710;
  --bg-darker: #050b18;
  --bg-card: rgba(10, 18, 36, 0.75);
  --bg-card-hover: rgba(16, 28, 54, 0.85);
  --bg-glass: rgba(6, 12, 26, 0.65);

  --neon-cyan: #00f0ff;
  --neon-cyan-glow: rgba(0, 240, 255, 0.45);
  --neon-magenta: #ff007f;
  --neon-magenta-glow: rgba(255, 0, 127, 0.45);
  --neon-gold: #ffb700;
  --neon-gold-glow: rgba(255, 183, 0, 0.4);
  --neon-green: #00ff88;
  --neon-green-glow: rgba(0, 255, 136, 0.45);
  --neon-purple: #9d00ff;

  --text-main: #f0f4ff;
  --text-dim: #8fa3cc;
  --text-muted: #536485;

  --border-cyan: rgba(0, 240, 255, 0.3);
  --border-magenta: rgba(255, 0, 127, 0.3);

  --font-cyber: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Roboto', 'Oxygen', 'Ubuntu', Cantarell, sans-serif;
  --font-mono: 'Consolas', 'Courier New', monospace;
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-cyber);
  background-color: var(--bg-deep);
  color: var(--text-main);
  overflow-x: hidden;
}

body {
  position: relative;
  min-height: 100vh;
  background: radial-gradient(circle at 50% 10%, #0c1833 0%, #040916 55%, #020409 100%);
  background-attachment: fixed;
  line-height: 1.6;
  overflow-x: hidden;
}

/* Background Rain Canvas */
#rainCanvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 1;
}

/* Cyber City Fog and Scanline Overlay */
.cyber-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: 
    linear-gradient(rgba(18, 16, 38, 0) 50%, rgba(0, 0, 0, 0.25) 50%),
    linear-gradient(90deg, rgba(255, 0, 0, 0.02), rgba(0, 255, 0, 0.01), rgba(0, 0, 255, 0.02));
  background-size: 100% 4px, 6px 100%;
  pointer-events: none;
  z-index: 2;
  opacity: 0.65;
}

/* ==========================================================================
   TOP ALERT / TICKER BANNER
   ========================================================================== */
.top-ticker-banner {
  position: relative;
  z-index: 20;
  background: linear-gradient(90deg, rgba(255,0,127,0.85) 0%, rgba(13,10,38,0.95) 25%, rgba(13,10,38,0.95) 75%, rgba(0,240,255,0.85) 100%);
  border-bottom: 1px solid var(--border-cyan);
  padding: 8px 16px;
  font-size: 0.85rem;
  font-family: var(--font-mono);
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.2);
}

.ticker-content {
  display: flex;
  align-items: center;
  gap: 12px;
  overflow: hidden;
  white-space: nowrap;
}

.ticker-badge {
  background: var(--neon-magenta);
  color: #fff;
  font-weight: bold;
  padding: 2px 8px;
  border-radius: 2px;
  font-size: 0.75rem;
  letter-spacing: 1px;
  animation: pulseNeon 1.8s infinite alternate;
}

.ticker-text {
  color: #e2eeff;
  letter-spacing: 0.5px;
}

.ticker-actions {
  display: flex;
  align-items: center;
  gap: 15px;
}

.audio-toggle-btn {
  background: rgba(0, 240, 255, 0.1);
  border: 1px solid var(--border-cyan);
  color: var(--neon-cyan);
  padding: 3px 10px;
  font-size: 0.78rem;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.25s ease;
  display: flex;
  align-items: center;
  gap: 6px;
}

.audio-toggle-btn:hover {
  background: var(--neon-cyan);
  color: #000;
  box-shadow: 0 0 12px var(--neon-cyan-glow);
}

.audio-toggle-btn.muted {
  border-color: var(--text-muted);
  color: var(--text-muted);
  background: transparent;
}

/* ==========================================================================
   NAVIGATION BAR
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(5, 11, 24, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(0, 240, 255, 0.2);
}

.header-container {
  max-width: 1300px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo-symbol {
  width: 36px;
  height: 36px;
  border: 2px solid var(--neon-cyan);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 900;
  font-size: 1.1rem;
  color: var(--neon-cyan);
  box-shadow: 0 0 15px var(--neon-cyan-glow), inset 0 0 10px var(--neon-cyan-glow);
  position: relative;
}

.logo-symbol::after {
  content: '';
  position: absolute;
  width: 6px;
  height: 6px;
  background: var(--neon-magenta);
  border-radius: 50%;
  top: -2px;
  right: 2px;
  box-shadow: 0 0 8px var(--neon-magenta);
}

.brand-title {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 1.5px;
  background: linear-gradient(90deg, #fff 0%, var(--neon-cyan) 60%, var(--neon-magenta) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-transform: uppercase;
}

.brand-sub {
  font-size: 0.68rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
  letter-spacing: 2px;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  list-style: none;
}

.nav-links a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.5px;
  transition: all 0.25s ease;
  position: relative;
  padding: 6px 2px;
}

.nav-links a:hover, .nav-links a.active {
  color: var(--neon-cyan);
  text-shadow: 0 0 8px var(--neon-cyan-glow);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--neon-cyan);
  transition: width 0.3s ease;
  box-shadow: 0 0 8px var(--neon-cyan);
}

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

.nav-kb-btn {
  border: 1px solid var(--border-magenta) !important;
  color: var(--neon-magenta) !important;
  padding: 5px 12px !important;
  border-radius: 4px;
  background: rgba(255, 0, 127, 0.08);
}

.nav-kb-btn:hover {
  background: var(--neon-magenta) !important;
  color: #fff !important;
  box-shadow: 0 0 15px var(--neon-magenta-glow) !important;
}

.nav-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--neon-cyan) 0%, #0099ff 100%);
  color: #030712 !important;
  font-weight: 700 !important;
  padding: 8px 18px !important;
  border-radius: 4px;
  text-shadow: none !important;
  box-shadow: 0 0 20px var(--neon-cyan-glow);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1) !important;
}

.nav-cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 28px rgba(0, 240, 255, 0.7);
  color: #000 !important;
}

.mobile-nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-cyan);
  color: var(--neon-cyan);
  padding: 8px 12px;
  border-radius: 4px;
  font-size: 1.2rem;
  cursor: pointer;
}

/* ==========================================================================
   HERO / CYBERPUNK RAINY ALLEY
   ========================================================================== */
.hero-cyber-alley {
  position: relative;
  z-index: 10;
  padding: 60px 20px 80px;
  max-width: 1300px;
  margin: 0 auto;
}

.alley-backdrop {
  position: relative;
  background: linear-gradient(180deg, rgba(8, 16, 34, 0.85) 0%, rgba(4, 9, 20, 0.95) 100%);
  border: 1px solid rgba(0, 240, 255, 0.25);
  border-radius: 12px;
  padding: 50px 40px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.7), 0 0 40px rgba(0, 240, 255, 0.1);
  overflow: hidden;
}

/* Ambient glow spots inside alley */
.alley-backdrop::before {
  content: '';
  position: absolute;
  top: -100px;
  left: 20%;
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, rgba(0, 240, 255, 0.15) 0%, transparent 70%);
  filter: blur(50px);
  pointer-events: none;
}

.alley-backdrop::after {
  content: '';
  position: absolute;
  top: 100px;
  right: 15%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 0, 127, 0.15) 0%, transparent 70%);
  filter: blur(60px);
  pointer-events: none;
}

/* Hanging Neon Signs Rack */
.neon-signs-rack {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 24px;
  margin-bottom: 50px;
  position: relative;
  z-index: 5;
}

/* Chain Suspension Effect */
.neon-sign-box {
  position: relative;
  text-decoration: none;
  cursor: pointer;
  display: block;
  padding-top: 24px; /* Space for chains */
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.neon-sign-box:hover {
  transform: translateY(-5px);
}

.sign-chains {
  position: absolute;
  top: 0;
  left: 20px;
  right: 20px;
  height: 24px;
  display: flex;
  justify-content: space-between;
}

.chain-link {
  width: 2px;
  height: 100%;
  background: linear-gradient(180deg, #44556e, #222d3d);
  box-shadow: 1px 0 2px rgba(0,0,0,0.8);
}

.sign-frame {
  position: relative;
  padding: 22px 20px;
  border-radius: 6px;
  background: rgba(4, 9, 22, 0.92);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 140px;
  overflow: hidden;
}

/* Sign 1: 专线拉面馆 (Amber & Cyan Neon) */
.sign-ramen .sign-frame {
  border: 2px solid var(--neon-gold);
  box-shadow: 0 0 15px var(--neon-gold-glow), inset 0 0 10px rgba(255, 183, 0, 0.15);
}

.sign-ramen .sign-title {
  color: #fff9e6;
  text-shadow: 0 0 10px var(--neon-gold), 0 0 20px var(--neon-gold);
}

.sign-ramen .sign-tag {
  color: var(--neon-gold);
  border: 1px solid var(--neon-gold);
}

/* Sign 2: AI 智脑诊所 (Cyan & Green Neon) */
.sign-clinic .sign-frame {
  border: 2px solid var(--neon-cyan);
  box-shadow: 0 0 15px var(--neon-cyan-glow), inset 0 0 10px rgba(0, 240, 255, 0.15);
}

.sign-clinic .sign-title {
  color: #e6ffff;
  text-shadow: 0 0 10px var(--neon-cyan), 0 0 20px var(--neon-cyan);
}

.sign-clinic .sign-tag {
  color: var(--neon-cyan);
  border: 1px solid var(--neon-cyan);
}

/* Sign 3: 4K 放映厅 (Magenta & Purple Neon) */
.sign-cinema .sign-frame {
  border: 2px solid var(--neon-magenta);
  box-shadow: 0 0 15px var(--neon-magenta-glow), inset 0 0 10px rgba(255, 0, 127, 0.15);
}

.sign-cinema .sign-title {
  color: #ffe6f2;
  text-shadow: 0 0 10px var(--neon-magenta), 0 0 20px var(--neon-magenta);
}

.sign-cinema .sign-tag {
  color: var(--neon-magenta);
  border: 1px solid var(--neon-magenta);
}

.sign-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.sign-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 2px 6px;
  border-radius: 2px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.sign-status-light {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--neon-green);
  box-shadow: 0 0 8px var(--neon-green);
  animation: blinkFast 2.5s infinite;
}

.sign-title {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 1px;
  margin-bottom: 6px;
  line-height: 1.3;
}

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

.sign-hint {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  margin-top: 10px;
  display: flex;
  align-items: center;
  gap: 5px;
}

/* Glitch animation on click */
.glitch-active .sign-frame {
  animation: neonFlickerGlitch 0.7s steps(2, start) forwards;
}

.humming .sign-frame {
  animation: humVibrate 0.1s infinite alternate;
}

/* Hero Center Copy */
.hero-statement-block {
  text-align: center;
  max-width: 900px;
  margin: 0 auto 40px;
  position: relative;
  z-index: 5;
}

.hero-super-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 240, 255, 0.08);
  border: 1px solid var(--border-cyan);
  padding: 6px 18px;
  border-radius: 50px;
  color: var(--neon-cyan);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  margin-bottom: 24px;
}

.hero-main-title {
  font-size: 2.8rem;
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: 1px;
  margin-bottom: 20px;
}

.hero-quote-highlight {
  background: linear-gradient(90deg, #ffffff 0%, var(--neon-cyan) 40%, var(--neon-magenta) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 30px rgba(0, 240, 255, 0.35);
  display: block;
}

.hero-sub-copy {
  font-size: 1.15rem;
  color: #b3c7e8;
  max-width: 780px;
  margin: 0 auto 35px;
  line-height: 1.8;
}

.hero-cta-group {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.cyber-btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--neon-cyan) 0%, #0088ff 100%);
  color: #020611;
  font-size: 1.1rem;
  font-weight: 800;
  padding: 16px 36px;
  border-radius: 4px;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 1px;
  box-shadow: 0 0 25px var(--neon-cyan-glow), inset 0 0 10px rgba(255,255,255,0.4);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.cyber-btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 0 40px rgba(0, 240, 255, 0.7);
  color: #000;
}

.cyber-btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 0, 127, 0.08);
  border: 1px solid var(--neon-magenta);
  color: #fff;
  font-size: 1.05rem;
  font-weight: 700;
  padding: 15px 32px;
  border-radius: 4px;
  text-decoration: none;
  letter-spacing: 0.5px;
  transition: all 0.3s ease;
  box-shadow: 0 0 15px rgba(255, 0, 127, 0.2);
}

.cyber-btn-secondary:hover {
  background: var(--neon-magenta);
  box-shadow: 0 0 30px var(--neon-magenta-glow);
  transform: translateY(-2px);
}

/* Quick Specs Ribbon */
.hero-specs-ribbon {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-top: 45px;
  padding-top: 35px;
  border-top: 1px solid rgba(0, 240, 255, 0.15);
}

.spec-item {
  display: flex;
  align-items: center;
  gap: 14px;
  background: rgba(6, 12, 28, 0.6);
  padding: 12px 18px;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.spec-icon {
  font-size: 1.6rem;
  color: var(--neon-cyan);
}

.spec-value {
  font-size: 1.1rem;
  font-weight: 800;
  color: #fff;
  font-family: var(--font-mono);
}

.spec-label {
  font-size: 0.75rem;
  color: var(--text-dim);
}

/* ==========================================================================
   SECTION COMMON WRAPPERS
   ========================================================================== */
.section-wrapper {
  position: relative;
  z-index: 10;
  max-width: 1300px;
  margin: 0 auto;
  padding: 80px 24px;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 50px;
}

.section-code-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--neon-cyan);
  letter-spacing: 2px;
  margin-bottom: 10px;
  text-transform: uppercase;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 14px;
  color: #fff;
  text-shadow: 0 0 20px rgba(0, 240, 255, 0.25);
}

.section-subtitle {
  font-size: 1rem;
  color: var(--text-dim);
  line-height: 1.7;
}

/* ==========================================================================
   SECTION 3: 节点延迟和状态监控板块 (NODE STATUS MONITOR)
   ========================================================================== */
.node-monitor-box {
  background: rgba(6, 13, 28, 0.85);
  border: 1px solid rgba(0, 240, 255, 0.25);
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 15px 40px rgba(0,0,0,0.6), inset 0 0 20px rgba(0, 240, 255, 0.05);
}

.node-control-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 24px;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.node-tabs {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.node-tab-btn {
  background: rgba(14, 25, 48, 0.7);
  border: 1px solid rgba(0, 240, 255, 0.2);
  color: var(--text-dim);
  padding: 8px 16px;
  border-radius: 4px;
  font-size: 0.85rem;
  font-family: var(--font-mono);
  cursor: pointer;
  transition: all 0.2s ease;
}

.node-tab-btn:hover, .node-tab-btn.active {
  background: rgba(0, 240, 255, 0.15);
  border-color: var(--neon-cyan);
  color: var(--neon-cyan);
  box-shadow: 0 0 12px var(--neon-cyan-glow);
}

.live-sla-indicator {
  display: flex;
  align-items: center;
  gap: 20px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

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

.sla-label {
  color: var(--text-muted);
}

.sla-val {
  color: var(--neon-green);
  font-weight: bold;
}

.nodes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 18px;
}

.node-card {
  background: rgba(10, 20, 42, 0.65);
  border: 1px solid rgba(0, 240, 255, 0.15);
  border-radius: 6px;
  padding: 18px;
  transition: all 0.25s ease;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.node-card:hover {
  border-color: var(--neon-cyan);
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5), 0 0 15px rgba(0, 240, 255, 0.25);
  background: rgba(14, 28, 58, 0.85);
}

.node-card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
}

.node-flag-title {
  display: flex;
  align-items: center;
  gap: 10px;
}

.node-flag {
  font-size: 1.4rem;
}

.node-name {
  font-weight: 700;
  font-size: 1rem;
  color: #fff;
}

.node-type-pill {
  font-size: 0.7rem;
  padding: 2px 6px;
  border-radius: 3px;
  font-family: var(--font-mono);
  background: rgba(255, 0, 127, 0.15);
  border: 1px solid var(--border-magenta);
  color: var(--neon-magenta);
}

.node-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  background: rgba(4, 8, 18, 0.6);
  padding: 10px 12px;
  border-radius: 4px;
  margin-bottom: 12px;
  font-family: var(--font-mono);
}

.metric-col {
  display: flex;
  flex-direction: column;
}

.metric-name {
  font-size: 0.7rem;
  color: var(--text-muted);
}

.metric-val {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--neon-green);
}

.node-features {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.feature-tag {
  font-size: 0.7rem;
  padding: 2px 7px;
  border-radius: 2px;
  background: rgba(0, 240, 255, 0.08);
  border: 1px solid rgba(0, 240, 255, 0.2);
  color: var(--neon-cyan);
}

/* Highlight section animation */
.section-highlight {
  outline: 2px solid var(--neon-cyan);
  box-shadow: 0 0 40px var(--neon-cyan-glow);
  transition: all 0.5s ease;
}

/* ==========================================================================
   SECTION 4: 套餐价格板块 (PRICING TIERS)
   ========================================================================== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-bottom: 50px;
}

.price-card {
  position: relative;
  background: rgba(8, 16, 34, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all 0.3s ease;
}

.price-card:hover {
  transform: translateY(-6px);
  border-color: var(--neon-cyan);
  box-shadow: 0 15px 40px rgba(0,0,0,0.6), 0 0 25px rgba(0, 240, 255, 0.25);
}

.price-card.featured {
  border: 2px solid var(--neon-cyan);
  background: linear-gradient(180deg, rgba(12, 25, 54, 0.9) 0%, rgba(6, 13, 28, 0.9) 100%);
  box-shadow: 0 0 30px var(--neon-cyan-glow);
}

.featured-ribbon {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(90deg, var(--neon-magenta), var(--neon-cyan));
  color: #000;
  font-weight: 800;
  font-size: 0.75rem;
  padding: 3px 14px;
  border-radius: 12px;
  letter-spacing: 1px;
}

.price-header {
  margin-bottom: 20px;
}

.plan-name {
  font-size: 1.4rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 6px;
}

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

.plan-price-wrap {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin: 18px 0;
  font-family: var(--font-mono);
}

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

.price-amount {
  font-size: 2.8rem;
  font-weight: 900;
  color: #fff;
  line-height: 1;
}

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

.plan-features-list {
  list-style: none;
  margin-bottom: 28px;
  flex-grow: 1;
}

.plan-features-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: #d1dff6;
  margin-bottom: 12px;
}

.plan-features-list li::before {
  content: '✓';
  color: var(--neon-green);
  font-weight: bold;
}

.plan-btn {
  display: block;
  text-align: center;
  background: rgba(0, 240, 255, 0.1);
  border: 1px solid var(--neon-cyan);
  color: var(--neon-cyan);
  padding: 12px;
  border-radius: 4px;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
  transition: all 0.25s ease;
}

.plan-btn:hover {
  background: var(--neon-cyan);
  color: #000;
  box-shadow: 0 0 20px var(--neon-cyan-glow);
}

.price-card.featured .plan-btn {
  background: var(--neon-cyan);
  color: #000;
}

.price-card.featured .plan-btn:hover {
  background: #fff;
  box-shadow: 0 0 25px rgba(255, 255, 255, 0.7);
}

/* ==========================================================================
   CORE ADVANTAGES (核心优势板块)
   ========================================================================== */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.advantage-card {
  background: rgba(7, 14, 30, 0.75);
  border: 1px solid rgba(0, 240, 255, 0.15);
  border-radius: 8px;
  padding: 28px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.advantage-card:hover {
  border-color: var(--neon-cyan);
  transform: translateY(-4px);
  background: rgba(12, 24, 52, 0.85);
  box-shadow: 0 15px 35px rgba(0,0,0,0.5), 0 0 20px rgba(0, 240, 255, 0.2);
}

.adv-icon-wrap {
  width: 54px;
  height: 54px;
  border-radius: 8px;
  background: rgba(0, 240, 255, 0.1);
  border: 1px solid var(--border-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 20px;
  color: var(--neon-cyan);
}

.advantage-card:nth-child(2) .adv-icon-wrap {
  background: rgba(255, 0, 127, 0.1);
  border-color: var(--border-magenta);
  color: var(--neon-magenta);
}

.advantage-card:nth-child(3) .adv-icon-wrap {
  background: rgba(255, 183, 0, 0.1);
  border-color: rgba(255, 183, 0, 0.3);
  color: var(--neon-gold);
}

.adv-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 10px;
}

.adv-desc {
  font-size: 0.92rem;
  color: var(--text-dim);
  line-height: 1.7;
}

/* ==========================================================================
   SECTION 5: 常见问题 (FAQ ACCORDION)
   ========================================================================== */
.faq-container {
  max-width: 900px;
  margin: 0 auto;
}

.faq-item {
  background: rgba(8, 16, 34, 0.8);
  border: 1px solid rgba(0, 240, 255, 0.15);
  border-radius: 6px;
  margin-bottom: 14px;
  overflow: hidden;
  transition: all 0.25s ease;
}

.faq-item.active {
  border-color: var(--neon-cyan);
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.15);
}

.faq-question {
  padding: 18px 22px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  user-select: none;
}

.faq-question h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
}

.faq-toggle-icon {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  color: var(--neon-cyan);
  transition: transform 0.25s ease;
}

.faq-item.active .faq-toggle-icon {
  transform: rotate(45deg);
  color: var(--neon-magenta);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0, 1, 0, 1);
  background: rgba(5, 10, 22, 0.7);
}

.faq-item.active .faq-answer {
  max-height: 600px;
  padding: 18px 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  transition: max-height 0.4s ease-in-out;
}

.faq-answer p {
  color: var(--text-dim);
  font-size: 0.92rem;
  line-height: 1.8;
  margin-bottom: 10px;
}

/* Dedicated Knowledge Base Entry Callout Banner (Not the full KB section itself, but internal routing banner) */
.kb-portal-banner {
  margin-top: 45px;
  background: linear-gradient(90deg, rgba(255, 0, 127, 0.15) 0%, rgba(6, 12, 28, 0.9) 50%, rgba(0, 240, 255, 0.15) 100%);
  border: 1px solid var(--border-cyan);
  border-radius: 8px;
  padding: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.kb-portal-info h4 {
  font-size: 1.3rem;
  color: #fff;
  margin-bottom: 6px;
}

.kb-portal-info p {
  font-size: 0.9rem;
  color: var(--text-dim);
}

.kb-portal-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--neon-magenta);
  color: #fff;
  padding: 12px 24px;
  border-radius: 4px;
  text-decoration: none;
  font-weight: 700;
  box-shadow: 0 0 18px var(--neon-magenta-glow);
  transition: all 0.25s ease;
}

.kb-portal-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 28px rgba(255, 0, 127, 0.8);
}

/* ==========================================================================
   SECTION 6: 用户评价板块 (TESTIMONIALS)
   ========================================================================== */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 22px;
}

.review-card {
  background: rgba(7, 14, 30, 0.7);
  border: 1px solid rgba(0, 240, 255, 0.12);
  border-radius: 8px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all 0.25s ease;
}

.review-card:hover {
  border-color: var(--neon-cyan);
  transform: translateY(-4px);
  background: rgba(12, 24, 50, 0.85);
  box-shadow: 0 12px 30px rgba(0,0,0,0.5), 0 0 15px rgba(0, 240, 255, 0.15);
}

.review-user-info {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.review-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 2px solid var(--neon-cyan);
  box-shadow: 0 0 10px var(--neon-cyan-glow);
  background: #111a2f;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: var(--neon-cyan);
  font-size: 1.1rem;
}

.review-meta h4 {
  font-size: 1rem;
  color: #fff;
  font-weight: 700;
}

.review-meta p {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.review-stars {
  color: var(--neon-gold);
  margin-bottom: 12px;
  font-size: 0.9rem;
}

.review-body {
  font-size: 0.92rem;
  color: #d1e0fc;
  line-height: 1.7;
}

/* ==========================================================================
   SECTION 7: 页面底部霓虹积水区 (INTERACTIVE PUDDLE RIPPLING)
   ========================================================================== */
.puddle-interactive-section {
  position: relative;
  z-index: 10;
  width: 100%;
  padding-top: 20px;
  overflow: hidden;
}

.puddle-hint-bar {
  text-align: center;
  margin-bottom: 10px;
}

.puddle-tip {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--neon-cyan);
  letter-spacing: 1px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 240, 255, 0.05);
  border: 1px solid rgba(0, 240, 255, 0.2);
  padding: 4px 14px;
  border-radius: 20px;
}

.puddle-canvas-wrapper {
  position: relative;
  width: 100%;
  height: 280px;
  background: linear-gradient(180deg, transparent 0%, #030611 100%);
  cursor: crosshair;
}

#puddleCanvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.cyber-footer {
  position: relative;
  z-index: 20;
  background: #020409;
  border-top: 1px solid rgba(0, 240, 255, 0.2);
  padding: 50px 24px 30px;
}

.footer-content {
  max-width: 1300px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand h3 {
  font-size: 1.4rem;
  color: #fff;
  margin-bottom: 12px;
}

.footer-brand p {
  color: var(--text-dim);
  font-size: 0.88rem;
  line-height: 1.8;
  max-width: 500px;
}

.footer-nav-col h4 {
  font-size: 1rem;
  color: var(--neon-cyan);
  font-family: var(--font-mono);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

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

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

.footer-nav-col a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.88rem;
  transition: color 0.2s ease;
}

.footer-nav-col a:hover {
  color: var(--neon-cyan);
  text-shadow: 0 0 8px var(--neon-cyan-glow);
}

.footer-bottom {
  max-width: 1300px;
  margin: 0 auto;
  padding-top: 25px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 15px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ==========================================================================
   ANIMATIONS & KEYFRAMES
   ========================================================================== */
@keyframes pulseNeon {
  0% { box-shadow: 0 0 5px var(--neon-magenta-glow); }
  100% { box-shadow: 0 0 20px var(--neon-magenta-glow); }
}

@keyframes blinkFast {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

@keyframes humVibrate {
  0% { transform: translate(0, 0); }
  50% { transform: translate(0.5px, -0.5px); }
  100% { transform: translate(-0.5px, 0.5px); }
}

@keyframes neonFlickerGlitch {
  0% { opacity: 1; filter: drop-shadow(0 0 20px #00f0ff); }
  15% { opacity: 0.2; filter: none; }
  25% { opacity: 1; filter: drop-shadow(0 0 30px #ff007f); }
  35% { opacity: 0.4; }
  50% { opacity: 1; filter: drop-shadow(0 0 25px #00f0ff); }
  65% { opacity: 0.7; }
  80% { opacity: 0.2; }
  100% { opacity: 1; filter: drop-shadow(0 0 20px #00f0ff); }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   RESPONSIVE DESIGN
   ========================================================================== */
@media (max-width: 992px) {
  .hero-main-title {
    font-size: 2.2rem;
  }
  .footer-content {
    grid-template-columns: 1fr;
  }
  .nav-links {
    position: fixed;
    top: 70px;
    right: -100%;
    width: 280px;
    height: calc(100vh - 70px);
    background: rgba(4, 9, 20, 0.98);
    backdrop-filter: blur(20px);
    border-left: 1px solid var(--border-cyan);
    flex-direction: column;
    padding: 30px 20px;
    align-items: flex-start;
    transition: right 0.35s ease;
    z-index: 1000;
  }
  .nav-links.nav-open {
    right: 0;
  }
  .mobile-nav-toggle {
    display: block;
  }
}

@media (max-width: 600px) {
  .hero-main-title {
    font-size: 1.75rem;
  }
  .hero-sub-copy {
    font-size: 0.95rem;
  }
  .alley-backdrop {
    padding: 24px 16px;
  }
  .top-ticker-banner {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
  .ticker-content {
    white-space: normal;
  }
}