/* ==========================================================================
   OuO Network - Gravitational Optics Luxury UI Engine
   Cosmological Void Palette: #040507 | #8b5cf6 | #06b6d4 | #ffffff
   Hardware-accelerated 3D parallax, smoked-crystal HUDs, laser optical precision
   ========================================================================== */

:root {
  /* Default: Deep Cosmological Void Palette (Dark luxury by specification) */
  --void-black: #040507;
  --void-deep: #070a10;
  --void-surface: #0c121d;
  --crystal-surface: rgba(12, 18, 29, 0.72);
  --crystal-surface-hover: rgba(18, 27, 44, 0.88);
  --crystal-border: rgba(255, 255, 255, 0.08);
  --crystal-border-glow: rgba(139, 92, 246, 0.35);
  
  --laser-white: #ffffff;
  --starlight-dim: #94a3b8;
  --nebula-muted: #64748b;
  
  --ion-violet: #8b5cf6;
  --ion-violet-glow: rgba(139, 92, 246, 0.45);
  --beam-cyan: #06b6d4;
  --beam-cyan-glow: rgba(6, 182, 212, 0.4);
  
  --optical-gradient: linear-gradient(135deg, #06b6d4 0%, #8b5cf6 50%, #d946ef 100%);
  --laser-gradient: linear-gradient(90deg, #06b6d4, #8b5cf6);
  --aperture-glow: radial-gradient(circle, rgba(139, 92, 246, 0.22) 0%, rgba(6, 182, 212, 0.12) 45%, transparent 70%);

  --hud-glass: rgba(10, 15, 24, 0.65);
  --hud-border: rgba(6, 182, 212, 0.25);
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-full: 9999px;

  --font-display: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Fira Code", monospace;
  
  --shadow-hud: 0 16px 40px -10px rgba(0, 0, 0, 0.8), 0 0 1px 1px rgba(255, 255, 255, 0.06);
  --shadow-neon: 0 0 30px rgba(139, 92, 246, 0.35), 0 0 60px rgba(6, 182, 212, 0.2);
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Light Mode: Cold Laboratory Optic Platinum */
[data-theme="light"] {
  --void-black: #f5f7fb;
  --void-deep: #ebf0f7;
  --void-surface: #ffffff;
  --crystal-surface: rgba(255, 255, 255, 0.85);
  --crystal-surface-hover: #ffffff;
  --crystal-border: rgba(15, 23, 42, 0.1);
  --crystal-border-glow: rgba(139, 92, 246, 0.3);

  --laser-white: #090e17;
  --starlight-dim: #334155;
  --nebula-muted: #64748b;

  --ion-violet: #7c3aed;
  --ion-violet-glow: rgba(124, 58, 237, 0.25);
  --beam-cyan: #0284c7;
  --beam-cyan-glow: rgba(2, 132, 199, 0.25);

  --optical-gradient: linear-gradient(135deg, #0284c7 0%, #7c3aed 100%);
  --laser-gradient: linear-gradient(90deg, #0284c7, #7c3aed);
  --aperture-glow: radial-gradient(circle, rgba(124, 58, 237, 0.12) 0%, rgba(2, 132, 199, 0.08) 50%, transparent 70%);

  --hud-glass: rgba(255, 255, 255, 0.82);
  --hud-border: rgba(2, 132, 199, 0.22);
  --shadow-hud: 0 12px 32px -6px rgba(15, 23, 42, 0.08), 0 0 1px 1px rgba(15, 23, 42, 0.06);
  --shadow-neon: 0 0 25px rgba(124, 58, 237, 0.2);
}

/* Base & Global Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-display);
  background-color: var(--void-black);
  color: var(--laser-white);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
  transition: background-color var(--transition-smooth), color var(--transition-smooth);
}

/* Deep Gravitational Void Optics Background */
.cosmic-canvas {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.cosmic-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.8;
  mask-image: radial-gradient(ellipse at center, rgba(0,0,0,1) 0%, rgba(0,0,0,0.2) 75%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse at center, rgba(0,0,0,1) 0%, rgba(0,0,0,0.2) 75%, transparent 100%);
}

[data-theme="light"] .cosmic-grid {
  background-image: 
    linear-gradient(to right, rgba(15, 23, 42, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(15, 23, 42, 0.04) 1px, transparent 1px);
}

.gravitational-singularity {
  position: absolute;
  top: 15%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 900px;
  height: 900px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.18) 0%, rgba(6, 182, 212, 0.12) 35%, rgba(4, 5, 7, 0) 70%);
  filter: blur(60px);
  animation: cosmic-pulse 10s ease-in-out infinite alternate;
}

[data-theme="light"] .gravitational-singularity {
  background: radial-gradient(circle, rgba(124, 58, 237, 0.1) 0%, rgba(2, 132, 199, 0.08) 35%, transparent 70%);
}

@keyframes cosmic-pulse {
  0% { transform: translate(-50%, -50%) scale(0.92); opacity: 0.7; }
  100% { transform: translate(-50%, -50%) scale(1.15); opacity: 1; }
}

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all var(--transition-smooth);
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* ==========================================================================
   Header & Optics Navigation Bar
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(4, 5, 7, 0.75);
  border-bottom: 1px solid var(--crystal-border);
  transition: all var(--transition-smooth);
}

[data-theme="light"] .site-header {
  background: rgba(245, 247, 251, 0.85);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 20px;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.brand-logo-img {
  height: 40px;
  width: auto;
  border-radius: 8px;
  box-shadow: 0 0 16px rgba(102, 74, 232, 0.45);
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
  display: block;
}

.brand-logo-img:hover {
  transform: scale(1.04);
  box-shadow: 0 0 25px rgba(102, 74, 232, 0.7);
}

.brand-optical-gem {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--optical-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 20px var(--ion-violet-glow);
  position: relative;
  overflow: hidden;
}

.brand-optical-gem::after {
  content: "";
  position: absolute;
  inset: 1px;
  border-radius: 9px;
  background: var(--void-black);
  transition: background var(--transition-smooth);
}

.brand-optical-gem svg {
  position: relative;
  z-index: 2;
  color: #fff;
}

[data-theme="light"] .brand-optical-gem svg {
  color: var(--beam-cyan);
}

.brand-title-text {
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.brand-name-glow {
  background: var(--optical-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 900;
  font-size: 1.45rem;
}

/* Nav Menu: Comprehensive Anchors + Recommends */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
  background: rgba(255, 255, 255, 0.03);
  padding: 5px 8px;
  border-radius: var(--radius-full);
  border: 1px solid var(--crystal-border);
}

[data-theme="light"] .nav-menu {
  background: rgba(15, 23, 42, 0.04);
}

.nav-link {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--starlight-dim);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  transition: all 0.25s ease;
  position: relative;
}

.nav-link:hover {
  color: var(--laser-white);
  background: rgba(255, 255, 255, 0.08);
}

[data-theme="light"] .nav-link:hover {
  background: rgba(15, 23, 42, 0.08);
  color: var(--laser-white);
}

.nav-link.recommend-link {
  color: var(--beam-cyan);
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.3);
}

.nav-link.recommend-link:hover {
  background: rgba(6, 182, 212, 0.2);
  box-shadow: 0 0 15px var(--beam-cyan-glow);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* Refined Optical Aperture Theme Switcher */
.theme-dial-btn {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--crystal-border);
  backdrop-filter: blur(10px);
  color: var(--laser-white);
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.theme-dial-btn:hover {
  border-color: var(--beam-cyan);
  background: rgba(6, 182, 212, 0.12);
  box-shadow: 0 0 18px var(--beam-cyan-glow);
  transform: rotate(25deg);
}

.theme-dial-btn svg {
  width: 20px;
  height: 20px;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.dial-sun {
  display: none;
}
.dial-moon {
  display: block;
}

[data-theme="light"] .dial-sun {
  display: block;
}
[data-theme="light"] .dial-moon {
  display: none;
}

/* Universal Precision Buttons */
.btn-laser {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 11px 24px;
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: var(--radius-md);
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
  letter-spacing: 0.02em;
}

.btn-laser-primary {
  background: var(--optical-gradient);
  color: #ffffff;
  box-shadow: 0 4px 20px var(--ion-violet-glow);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-laser-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--ion-violet-glow), 0 0 15px var(--beam-cyan-glow);
}

.btn-laser-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--laser-white);
  border: 1px solid var(--crystal-border);
  backdrop-filter: blur(8px);
}

[data-theme="light"] .btn-laser-secondary {
  background: rgba(15, 23, 42, 0.05);
}

.btn-laser-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--beam-cyan);
  color: var(--beam-cyan);
  transform: translateY(-2px);
}

.btn-laser-lg {
  padding: 15px 36px;
  font-size: 1.08rem;
  border-radius: var(--radius-lg);
}

.btn-laser-block {
  width: 100%;
}

/* ==========================================================================
   Hero Section: Interactive 3D "OuO" Optical Aperture & Relativistic HUD
   ========================================================================== */
.hero-stage {
  padding: 70px 0 60px;
  position: relative;
  overflow: visible;
}

.hero-layout {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
}

/* Cosmological Telemetry Badge */
.telemetry-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 18px;
  border-radius: var(--radius-full);
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid rgba(139, 92, 246, 0.3);
  box-shadow: 0 0 25px rgba(139, 92, 246, 0.15);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--laser-white);
  margin-bottom: 24px;
}

.telemetry-beacon {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--beam-cyan);
  box-shadow: 0 0 10px var(--beam-cyan);
  animation: beacon-ping 2s cubic-bezier(0, 0, 0.2, 1) infinite;
}

@keyframes beacon-ping {
  0% { transform: scale(0.95); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.6; box-shadow: 0 0 16px var(--beam-cyan); }
  100% { transform: scale(0.95); opacity: 1; }
}

.hero-main-title {
  font-size: 3.6rem;
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -0.035em;
  margin-bottom: 20px;
  max-width: 980px;
}

.hero-brand-highlight {
  display: inline-block;
  background: var(--optical-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  position: relative;
}

.hero-intro-text {
  font-size: 1.25rem;
  color: var(--starlight-dim);
  line-height: 1.75;
  max-width: 780px;
  margin: 0 auto 36px;
  font-weight: 450;
}

.hero-cta-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  margin-bottom: 54px;
  flex-wrap: wrap;
}

/* ==========================================================================
   Dual-Aperture Gravitational Optics 3D Visual Construct
   ========================================================================== */
.gravitational-rig {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  perspective: 1200px;
  position: relative;
}

.optics-hud-canvas {
  background: var(--crystal-surface);
  border: 1px solid var(--crystal-border);
  border-radius: var(--radius-lg);
  padding: 40px 30px;
  box-shadow: var(--shadow-hud);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  transform-style: preserve-3d;
  transition: transform 0.15s ease-out, border-color var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.optics-hud-canvas:hover {
  border-color: rgba(6, 182, 212, 0.4);
}

/* Optics Laser Grid Lines */
.optics-hud-canvas::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--laser-gradient);
  opacity: 0.8;
}

/* The Anamorphic "OuO" Construct */
.ouo-aperture-core {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  margin: 20px 0 35px;
  position: relative;
}

/* Aperture Rings (The "O"s) */
.aperture-ring {
  width: 130px;
  height: 130px;
  border-radius: 50%;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 35px var(--ion-violet-glow);
  transform-style: preserve-3d;
  transition: transform 0.2s ease-out;
}

.aperture-ring-outer {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px dashed rgba(6, 182, 212, 0.6);
  animation: ring-spin-cw 18s linear infinite;
}

.aperture-ring-inner {
  position: absolute;
  inset: 12px;
  border-radius: 50%;
  border: 2px solid rgba(139, 92, 246, 0.8);
  border-left-color: transparent;
  border-right-color: transparent;
  animation: ring-spin-ccw 12s linear infinite;
}

.aperture-pupil {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: radial-gradient(circle, #ffffff 0%, var(--beam-cyan) 40%, #040507 90%);
  box-shadow: 0 0 25px var(--beam-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #040507;
  font-family: var(--font-mono);
  font-weight: 900;
  font-size: 1.1rem;
}

[data-theme="light"] .aperture-pupil {
  background: radial-gradient(circle, #ffffff 0%, var(--beam-cyan) 60%, #0c121d 100%);
  color: #fff;
}

@keyframes ring-spin-cw {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes ring-spin-ccw {
  from { transform: rotate(0deg); }
  to { transform: rotate(-360deg); }
}

/* Gravitational Parabolic Curve (The "u-well") */
.gravitational-u-well {
  width: 140px;
  height: 90px;
  position: relative;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

.u-well-svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}

.u-well-path {
  fill: none;
  stroke: url(#laserGradient);
  stroke-width: 4;
  stroke-linecap: round;
  filter: drop-shadow(0 0 12px var(--ion-violet));
  animation: u-well-glow 3s ease-in-out infinite alternate;
}

@keyframes u-well-glow {
  0% { filter: drop-shadow(0 0 8px var(--ion-violet)); }
  100% { filter: drop-shadow(0 0 20px var(--beam-cyan)); }
}

.u-well-particle {
  fill: #ffffff;
  filter: drop-shadow(0 0 8px #ffffff);
}

/* Smoked-Crystal HUD Telemetry Route Grid */
.hud-routes-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 10px;
}

.hud-route-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--crystal-border);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  text-align: left;
  transition: all 0.25s ease;
  position: relative;
  cursor: crosshair;
}

[data-theme="light"] .hud-route-card {
  background: rgba(15, 23, 42, 0.03);
}

.hud-route-card:hover {
  background: rgba(6, 182, 212, 0.08);
  border-color: var(--beam-cyan);
  transform: translateY(-3px);
  box-shadow: 0 0 20px rgba(6, 182, 212, 0.2);
}

.route-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.route-code {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--beam-cyan);
  letter-spacing: 0.05em;
}

.route-ping {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 800;
  color: #10b981;
}

.route-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--laser-white);
  margin-bottom: 4px;
}

.route-spec {
  font-size: 0.78rem;
  color: var(--nebula-muted);
}

/* Coherent Laser Filament Indicator */
.laser-lock-status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 20px;
  margin-top: 20px;
  border-top: 1px solid var(--crystal-border);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--starlight-dim);
}

.laser-active-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--beam-cyan);
  font-weight: 700;
}

/* ==========================================================================
   Section Commons
   ========================================================================== */
.section {
  padding: 90px 0;
  position: relative;
}

.section-deep {
  background: var(--void-deep);
  border-top: 1px solid var(--crystal-border);
  border-bottom: 1px solid var(--crystal-border);
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}

.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--beam-cyan);
  margin-bottom: 14px;
  background: rgba(6, 182, 212, 0.1);
  padding: 4px 14px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(6, 182, 212, 0.25);
}

.section-title-lg {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  margin-bottom: 16px;
}

.section-subtitle-text {
  font-size: 1.1rem;
  color: var(--starlight-dim);
  line-height: 1.7;
}

/* ==========================================================================
   Product Core Features: 3 Graphic Crystal Cards
   ========================================================================== */
.features-trio {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-crystal-card {
  background: var(--crystal-surface);
  border: 1px solid var(--crystal-border);
  border-radius: var(--radius-lg);
  padding: 38px 30px;
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-hud);
  transition: all var(--transition-smooth);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.feature-crystal-card:hover {
  transform: translateY(-8px);
  border-color: var(--ion-violet);
  box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.7), 0 0 30px var(--ion-violet-glow);
}

.crystal-glyph-box {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  background: rgba(139, 92, 246, 0.12);
  border: 1px solid rgba(139, 92, 246, 0.3);
  color: var(--ion-violet);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  transition: all var(--transition-smooth);
}

.feature-crystal-card:hover .crystal-glyph-box {
  background: var(--optical-gradient);
  color: #fff;
  border-color: transparent;
  transform: scale(1.1);
}

.card-heading {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 14px;
}

.card-copy {
  font-size: 0.98rem;
  color: var(--starlight-dim);
  line-height: 1.75;
  flex-grow: 1;
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}

.tag-chip {
  font-size: 0.78rem;
  font-family: var(--font-mono);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--crystal-border);
  color: var(--laser-white);
}

/* ==========================================================================
   Showcase Modules: Streaming & AI Support
   ========================================================================== */
.showcase-stack {
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.showcase-monolith {
  background: var(--crystal-surface);
  border: 1px solid var(--crystal-border);
  border-radius: var(--radius-lg);
  padding: 44px;
  box-shadow: var(--shadow-hud);
  backdrop-filter: blur(20px);
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 48px;
  align-items: center;
}

.showcase-intel h3 {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.showcase-intel p {
  font-size: 1.05rem;
  color: var(--starlight-dim);
  line-height: 1.75;
  margin-bottom: 24px;
}

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

.bullet-points li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.96rem;
  color: var(--laser-white);
  font-weight: 500;
}

.bullet-check-icon {
  width: 18px;
  height: 18px;
  color: var(--beam-cyan);
  flex-shrink: 0;
}

.service-tiles-mosaic {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.service-tile {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--crystal-border);
  border-radius: var(--radius-md);
  padding: 18px 10px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  transition: all var(--transition-smooth);
}

[data-theme="light"] .service-tile {
  background: rgba(15, 23, 42, 0.03);
}

.service-tile:hover {
  background: var(--crystal-surface-hover);
  border-color: var(--beam-cyan);
  transform: translateY(-4px);
  box-shadow: 0 0 20px var(--beam-cyan-glow);
}

.tile-icon-box {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.15rem;
  color: #fff;
}

.service-tile span {
  font-size: 0.85rem;
  font-weight: 700;
}

.service-tile small {
  font-size: 0.72rem;
  color: var(--beam-cyan);
  font-family: var(--font-mono);
}

/* Brand Colors */
.tile-netflix { background: #e50914; }
.tile-disney { background: #113ccf; }
.tile-youtube { background: #ff0000; }
.tile-hbo { background: #5a2e98; }
.tile-tiktok { background: #000000; border: 1px solid #333; }
.tile-spotify { background: #1db954; }
.tile-hulu { background: #1ce783; color: #000 !important; }
.tile-prime { background: #00a8e1; }

.tile-openai { background: #10a37f; }
.tile-claude { background: #d97706; }
.tile-midjourney { background: #24292e; }
.tile-gemini { background: #1a73e8; }
.tile-cursor { background: #0284c7; }
.tile-copilot { background: #6e40c9; }
.tile-perplexity { background: #20808d; }
.tile-sora { background: #ec4899; }

/* ==========================================================================
   Pricing Comparison Table (Referenced to Real Airport/Proxy Market Rates)
   ========================================================================== */
.pricing-matrix {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: stretch;
}

.pricing-crystal-pod {
  background: var(--crystal-surface);
  border: 1px solid var(--crystal-border);
  border-radius: var(--radius-lg);
  padding: 42px 32px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all var(--transition-smooth);
  backdrop-filter: blur(18px);
}

.pricing-crystal-pod:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hud);
}

.pricing-crystal-pod.flagship-featured {
  border-color: var(--ion-violet);
  background: linear-gradient(180deg, rgba(139, 92, 246, 0.12) 0%, var(--crystal-surface) 100%);
  box-shadow: 0 0 35px var(--ion-violet-glow);
  transform: scale(1.03);
  z-index: 2;
}

.pricing-crystal-pod.flagship-featured:hover {
  transform: scale(1.03) translateY(-8px);
}

.flagship-ribbon {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--optical-gradient);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 800;
  padding: 5px 20px;
  border-radius: var(--radius-full);
  letter-spacing: 0.05em;
  box-shadow: 0 0 15px var(--ion-violet-glow);
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

.plan-info-block {
  border-bottom: 1px solid var(--crystal-border);
  padding-bottom: 26px;
  margin-bottom: 24px;
}

.plan-class-title {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 6px;
}

.plan-target-desc {
  font-size: 0.88rem;
  color: var(--starlight-dim);
}

.price-quantum-wrap {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-top: 18px;
}

.price-currency {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--beam-cyan);
}

.price-figure {
  font-size: 3.2rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  font-family: var(--font-mono);
}

.price-interval {
  font-size: 0.95rem;
  color: var(--starlight-dim);
}

.spec-checklist {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 34px;
  flex-grow: 1;
}

.spec-checklist li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.94rem;
  color: var(--starlight-dim);
}

.spec-checklist li strong {
  color: var(--laser-white);
}

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

.review-crystal-card {
  background: var(--crystal-surface);
  border: 1px solid var(--crystal-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-hud);
  transition: all var(--transition-smooth);
}

.review-crystal-card:hover {
  border-color: var(--beam-cyan);
  transform: translateY(-5px);
  box-shadow: 0 0 25px var(--beam-cyan-glow);
}

.starlight-rating {
  display: flex;
  gap: 4px;
  color: #f59e0b;
  margin-bottom: 16px;
  font-size: 1.1rem;
}

.review-quote-text {
  font-size: 0.98rem;
  color: var(--starlight-dim);
  line-height: 1.75;
  flex-grow: 1;
  margin-bottom: 24px;
  font-style: italic;
}

.reviewer-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  border-top: 1px solid var(--crystal-border);
  padding-top: 18px;
}

.reviewer-avatar-orb {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--optical-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: #fff;
  box-shadow: 0 0 12px var(--ion-violet-glow);
}

.reviewer-details h4 {
  font-size: 1rem;
  font-weight: 700;
}

.reviewer-details p {
  font-size: 0.82rem;
  color: var(--nebula-muted);
}

/* ==========================================================================
   FAQ Section
   ========================================================================== */
.faq-accordion-container {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-hud-row {
  background: var(--crystal-surface);
  border: 1px solid var(--crystal-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-smooth);
}

.faq-hud-row:hover {
  border-color: var(--beam-cyan);
}

.faq-trigger-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 26px;
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--laser-white);
  text-align: left;
}

.faq-chevron {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.35s ease, background 0.35s ease;
  flex-shrink: 0;
}

.faq-hud-row.active .faq-chevron {
  transform: rotate(180deg);
  background: var(--beam-cyan);
  color: #040507;
}

.faq-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0, 1, 0, 1), padding 0.35s ease;
  padding: 0 26px;
  color: var(--starlight-dim);
  font-size: 0.98rem;
  line-height: 1.8;
}

.faq-hud-row.active .faq-body {
  max-height: 600px;
  padding: 0 26px 24px 26px;
  transition: max-height 0.45s ease-in-out, padding 0.35s ease;
}

/* ==========================================================================
   Bottom Conversion Banner
   ========================================================================== */
.conversion-supernova {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.15) 0%, rgba(139, 92, 246, 0.25) 100%);
  border: 1px solid var(--crystal-border-glow);
  border-radius: var(--radius-lg);
  padding: 64px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
  margin: 50px 0 70px;
  box-shadow: var(--shadow-hud), 0 0 50px rgba(139, 92, 246, 0.15);
}

.conversion-supernova h2 {
  font-size: 2.6rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}

.conversion-supernova p {
  font-size: 1.15rem;
  color: var(--starlight-dim);
  max-width: 680px;
  margin: 0 auto 34px;
}

/* ==========================================================================
   Footer: Exactly 4 Titles Opening New Page
   ========================================================================== */
.site-footer {
  border-top: 1px solid var(--crystal-border);
  background: var(--void-deep);
  padding: 56px 0 40px;
  text-align: center;
}

.footer-nav-exact {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 36px;
  list-style: none;
  margin-bottom: 26px;
  flex-wrap: wrap;
}

.footer-nav-exact a {
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--starlight-dim);
}

.footer-nav-exact a:hover {
  color: var(--beam-cyan);
  text-shadow: 0 0 10px var(--beam-cyan-glow);
}

.footer-copyright {
  font-size: 0.88rem;
  color: var(--nebula-muted);
}

/* ==========================================================================
   Sub-pages & Insights Layout
   ========================================================================== */
.subpage-container {
  max-width: 900px;
  margin: 40px auto 80px;
}

.subpage-content-box {
  background: var(--crystal-surface);
  border: 1px solid var(--crystal-border);
  border-radius: var(--radius-lg);
  padding: 48px;
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-hud);
}

.insights-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  margin-top: 32px;
}

.insight-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--crystal-border);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: all var(--transition-smooth);
  display: flex;
  flex-direction: column;
}

.insight-card:hover {
  border-color: var(--beam-cyan);
  transform: translateY(-4px);
  box-shadow: 0 0 25px var(--beam-cyan-glow);
}

.insight-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--beam-cyan);
  font-weight: 700;
  margin-bottom: 12px;
}

.insight-title {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.insight-excerpt {
  font-size: 0.95rem;
  color: var(--starlight-dim);
  line-height: 1.7;
  flex-grow: 1;
}

/* ==========================================================================
   Responsive Media Queries (@media)
   ========================================================================== */
@media (max-width: 1080px) {
  .hero-main-title {
    font-size: 3rem;
  }
  .hud-routes-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .features-trio, .pricing-matrix, .reviews-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pricing-crystal-pod.flagship-featured {
    transform: none;
  }
  .showcase-monolith {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .insights-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .header-inner {
    height: 68px;
  }
  .nav-menu {
    display: none; /* Mobile screen clean layout */
  }
  .hero-main-title {
    font-size: 2.2rem;
  }
  .hero-intro-text {
    font-size: 1.05rem;
  }
  .ouo-aperture-core {
    gap: 16px;
  }
  .aperture-ring {
    width: 90px;
    height: 90px;
  }
  .aperture-pupil {
    width: 44px;
    height: 44px;
    font-size: 0.85rem;
  }
  .gravitational-u-well {
    width: 90px;
    height: 60px;
  }
  .hud-routes-grid {
    grid-template-columns: 1fr;
  }
  .features-trio, .pricing-matrix, .reviews-grid {
    grid-template-columns: 1fr;
  }
  .service-tiles-mosaic {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero-cta-bar {
    flex-direction: column;
    width: 100%;
  }
  .hero-cta-bar .btn-laser {
    width: 100%;
  }
  .footer-nav-exact {
    flex-direction: column;
    gap: 16px;
  }
  .subpage-content-box {
    padding: 28px 20px;
  }
}

@media (max-width: 480px) {
  .hero-main-title {
    font-size: 1.85rem;
  }
  .ouo-aperture-core {
    transform: scale(0.85);
  }
}

/* ==========================================================================
   Article & Editorial Long-Form Typography Styles
   ========================================================================== */
.article-header {
  padding: 30px 0 24px;
  border-bottom: 1px solid var(--crystal-border);
  margin-bottom: 32px;
}

.article-breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--starlight-dim);
  margin-bottom: 18px;
  flex-wrap: wrap;
}

.article-breadcrumbs a {
  color: var(--beam-cyan);
}

.article-breadcrumbs a:hover {
  text-decoration: underline;
}

.article-breadcrumbs span.sep {
  color: var(--nebula-muted);
}

.article-title-hero {
  font-size: 2.3rem;
  font-weight: 900;
  line-height: 1.3;
  letter-spacing: -0.025em;
  margin-bottom: 18px;
  color: var(--laser-white);
}

.article-meta-bar {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 0.88rem;
  color: var(--starlight-dim);
  font-family: var(--font-mono);
  flex-wrap: wrap;
}

.article-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* Table of Contents (TOC) */
.article-toc-box {
  background: var(--crystal-surface);
  border: 1px solid var(--crystal-border);
  border-left: 4px solid var(--beam-cyan);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  margin: 28px 0 36px;
  backdrop-filter: blur(14px);
}

.toc-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--laser-white);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.toc-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-left: 4px;
}

.toc-list li a {
  font-size: 0.95rem;
  color: var(--starlight-dim);
  display: inline-block;
  transition: all 0.2s ease;
}

.toc-list li a:hover {
  color: var(--beam-cyan);
  transform: translateX(4px);
}

.toc-list li.sub-toc {
  padding-left: 20px;
  font-size: 0.9rem;
}

/* Article Prose Typography */
.article-prose {
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--starlight-dim);
}

.article-prose h2 {
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--laser-white);
  margin: 44px 0 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--crystal-border);
  display: flex;
  align-items: center;
  gap: 10px;
}

.article-prose h2::before {
  content: "";
  display: inline-block;
  width: 5px;
  height: 22px;
  background: var(--optical-gradient);
  border-radius: 3px;
  flex-shrink: 0;
}

.article-prose h3 {
  font-size: 1.3rem;
  font-weight: 750;
  color: var(--laser-white);
  margin: 28px 0 14px;
}

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

.article-prose ul, .article-prose ol {
  margin: 18px 0 24px;
  padding-left: 28px;
}

.article-prose li {
  margin-bottom: 10px;
  line-height: 1.75;
}

.article-prose strong {
  color: var(--laser-white);
  font-weight: 700;
}

.article-prose a {
  color: var(--beam-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-prose a:hover {
  color: var(--ion-violet);
}

.article-prose blockquote {
  background: rgba(139, 92, 246, 0.08);
  border-left: 4px solid var(--ion-violet);
  padding: 18px 24px;
  border-radius: var(--radius-sm);
  margin: 28px 0;
  font-style: normal;
  color: var(--laser-white);
}

/* Callout Highlights */
.callout-box {
  background: var(--crystal-surface);
  border: 1px solid var(--crystal-border);
  border-radius: var(--radius-md);
  padding: 24px;
  margin: 28px 0;
  box-shadow: var(--shadow-sm);
}

.callout-box.tip {
  border-left: 4px solid var(--beam-cyan);
  background: rgba(6, 182, 212, 0.06);
}

.callout-box.warning {
  border-left: 4px solid #f59e0b;
  background: rgba(245, 158, 11, 0.06);
}

/* Comparison Table */
.data-table-wrap {
  overflow-x: auto;
  margin: 28px 0;
  border: 1px solid var(--crystal-border);
  border-radius: var(--radius-md);
  background: var(--crystal-surface);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
}

.data-table th, .data-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--crystal-border);
}

.data-table th {
  background: rgba(255, 255, 255, 0.04);
  font-weight: 700;
  color: var(--laser-white);
}

[data-theme="light"] .data-table th {
  background: rgba(15, 23, 42, 0.04);
}

.data-table tr:hover {
  background: rgba(6, 182, 212, 0.04);
}

/* FAQ in Article */
.article-faq-section {
  margin: 48px 0 36px;
  border-top: 1px solid var(--crystal-border);
  padding-top: 36px;
}

.faq-card-unit {
  background: var(--crystal-surface);
  border: 1px solid var(--crystal-border);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin-bottom: 16px;
}

.faq-card-unit h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--beam-cyan);
  margin-bottom: 10px;
}

.faq-card-unit p {
  margin-bottom: 0;
  font-size: 0.95rem;
  line-height: 1.7;
}

/* Related Reading Section */
.related-reading-box {
  margin: 50px 0 20px;
  border-top: 1px solid var(--crystal-border);
  padding-top: 36px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-top: 20px;
}

.related-card {
  background: var(--crystal-surface);
  border: 1px solid var(--crystal-border);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: all 0.25s ease;
  display: flex;
  flex-direction: column;
}

.related-card:hover {
  border-color: var(--beam-cyan);
  transform: translateY(-3px);
  box-shadow: 0 0 20px var(--beam-cyan-glow);
}

.related-card h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--laser-white);
  margin-bottom: 8px;
  line-height: 1.4;
}

.related-card p {
  font-size: 0.85rem;
  color: var(--starlight-dim);
  line-height: 1.6;
  margin-bottom: 0;
}

@media (max-width: 768px) {
  .article-title-hero {
    font-size: 1.85rem;
  }
  .related-grid {
    grid-template-columns: 1fr;
  }
}