/* ================================================================
   尔湾云 (ErwanCloud) — Official Stylesheet
   Pure Native CSS · Zero Framework Dependencies · Ultra-Fast Loading
   Theme: Option 1 - Cyber Azure & Electric Cyan
   ================================================================ */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;700&display=swap');

/* ================================================================
   1. DESIGN TOKENS (Cyber Azure & Electric Cyan Palette)
   ================================================================ */
:root {
  /* Brand Primary & Accents */
  --brand-primary:       #2563EB;
  --brand-primary-hover: #1D4ED8;
  --brand-primary-light: #60A5FA;
  --brand-cyan:          #06B6D4;
  --brand-cyan-light:    #38BDF8;
  --brand-emerald:       #10B981;
  --brand-gradient:      linear-gradient(135deg, #2563EB 0%, #06B6D4 100%);
  --brand-gradient-hover:linear-gradient(135deg, #1D4ED8 0%, #0891B2 100%);
  --brand-gradient-glow: linear-gradient(135deg, rgba(37,99,235,0.18) 0%, rgba(6,182,212,0.18) 100%);

  /* Deep Navy Obsidian Backgrounds */
  --bg-dark-0:           #080E1A;
  --bg-dark-1:           #0D1527;
  --bg-dark-2:           #131F37;
  --bg-dark-card:        #0F1A30;
  --bg-dark-card-hover:  #162444;
  --bg-glass-nav:        rgba(8, 14, 26, 0.85);
  --bg-glass-card:       rgba(15, 26, 48, 0.75);

  /* Text Hierarchy */
  --text-primary:        #F8FAFC;
  --text-secondary:      #94A3B8;
  --text-muted:          #64748B;
  --text-accent:         #38BDF8;

  /* Crisp Borders */
  --border-subtle:       rgba(255, 255, 255, 0.08);
  --border-medium:       rgba(255, 255, 255, 0.16);
  --border-nav-active:   rgba(56, 189, 248, 0.28);
  --border-highlight:    rgba(56, 189, 248, 0.45);

  /* Status Colors */
  --status-success:      #10B981;
  --status-warning:      #F59E0B;
  --status-danger:       #EF4444;

  /* Geometric Radii */
  --radius-sm:           6px;
  --radius-md:           12px;
  --radius-lg:           18px;
  --radius-xl:           24px;
  --radius-full:         9999px;

  /* Shadows & Glows */
  --shadow-sm:           0 2px 6px rgba(0, 0, 0, 0.3);
  --shadow-md:           0 6px 20px rgba(0, 0, 0, 0.45);
  --shadow-lg:           0 12px 36px rgba(0, 0, 0, 0.6);
  --shadow-glow:         0 0 25px rgba(37, 99, 235, 0.35);
  --shadow-glow-cyan:    0 0 25px rgba(6, 182, 212, 0.3);

  /* Typography */
  --font-sans:           "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono:           "JetBrains Mono", "SFMono-Regular", Consolas, Menlo, monospace;

  /* Transitions */
  --transition-fast:     0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal:   0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ================================================================
   2. RESET & BASE
   ================================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  background-color: var(--bg-dark-0);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  overflow-x: hidden;
  background-color: var(--bg-dark-0);
  background-image: 
    radial-gradient(at 0% 0%, rgba(37, 99, 235, 0.12) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(6, 182, 212, 0.08) 0px, transparent 50%),
    radial-gradient(at 50% 40%, rgba(37, 99, 235, 0.05) 0px, transparent 60%);
  min-height: 100vh;
}

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

img, svg {
  max-width: 100%;
  display: block;
}

ul, ol {
  list-style: none;
}

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

/* ================================================================
   3. LAYOUT & CONTAINERS
   ================================================================ */
.container {
  max-width: 1220px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
  position: relative;
  z-index: 1;
}

.section {
  padding: 100px 0;
  position: relative;
  border-bottom: 1px solid var(--border-subtle);
}

.section-title-wrap {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 56px auto;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 16px;
  color: #FFFFFF;
  letter-spacing: -0.02em;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.75;
}

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

/* ================================================================
   4. DISTINCT BUTTON SYSTEM
   ================================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1;
  text-align: center;
  white-space: nowrap;
  transition: all var(--transition-normal);
  cursor: pointer;
  position: relative;
  user-select: none;
}

/* Primary Button: Solid Gradient + Inset Bevel + Drop Glow */
.btn-primary {
  background: var(--brand-gradient);
  color: #FFFFFF !important;
  border: 1px solid rgba(255, 255, 255, 0.22);
  box-shadow: 
    inset 0 1px 0 rgba(255, 255, 255, 0.3),
    0 4px 16px rgba(37, 99, 235, 0.45);
}

.btn-primary:hover {
  background: var(--brand-gradient-hover);
  box-shadow: 
    inset 0 1px 0 rgba(255, 255, 255, 0.4),
    0 8px 24px rgba(37, 99, 235, 0.65);
  transform: translateY(-2px);
}

.btn-primary:active {
  transform: translateY(1px);
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.4);
}

/* Secondary Button: Crisp Border + Semi-Opaque Glass */
.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: #FFFFFF !important;
  border: 1.5px solid var(--border-medium);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--brand-cyan-light);
  box-shadow: 0 4px 16px rgba(6, 182, 212, 0.3);
  transform: translateY(-2px);
}

.btn-secondary:active {
  transform: translateY(1px);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.875rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.125rem;
  border-radius: var(--radius-lg);
  font-weight: 800;
}

.btn-block {
  display: flex;
  width: 100%;
}

/* ================================================================
   5. NAVBAR (Clear Border & Elevated Separation)
   ================================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: all var(--transition-normal);
  background: rgba(8, 14, 26, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

/* Scrolled state: distinct border separation + elevation shadow */
.navbar.scrolled {
  background: var(--bg-glass-nav);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  padding: 12px 0;
  border-bottom: 1px solid var(--border-nav-active);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.7);
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.brand-logo img {
  height: 38px;
  width: auto;
  transition: transform var(--transition-fast);
}

.brand-logo:hover img {
  transform: scale(1.05);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 6px 0;
}

.nav-links a:hover {
  color: #FFFFFF;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--brand-gradient);
  transition: width var(--transition-fast);
}

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

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

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 26px;
  height: 20px;
  background: transparent;
  cursor: pointer;
  z-index: 1001;
}

.mobile-menu-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

/* ================================================================
   6. HERO SECTION (2-Column Layout with Animated Vector Art)
   ================================================================ */
.hero-section {
  padding-top: 150px;
  padding-bottom: 90px;
  position: relative;
  overflow: hidden;
  background: radial-gradient(circle at 40% 25%, rgba(37, 99, 235, 0.16) 0%, transparent 60%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.hero-content {
  text-align: left;
  animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.promo-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(37, 99, 235, 0.14);
  border: 1px solid rgba(56, 189, 248, 0.35);
  border-radius: var(--radius-full);
  color: var(--brand-cyan-light);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 24px;
  box-shadow: 0 0 16px rgba(56, 189, 248, 0.2);
}

.hero-title {
  font-size: 3.1rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 20px;
  letter-spacing: -0.03em;
  color: #FFFFFF;
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 36px;
}

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

.hero-trust-badges {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px 24px;
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  border-top: 1px solid var(--border-subtle);
  padding-top: 28px;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.trust-item .icon {
  color: var(--status-success);
  font-weight: 800;
}

/* Hero Right Side: Animated Vector Art Canvas */
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  animation: fadeIn 1s ease-out 0.2s both;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.vector-art-wrapper {
  position: relative;
  width: 100%;
  max-width: 480px;
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.vector-art-svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}

/* Floating feature badges attached to the vector art */
.floating-badge {
  position: absolute;
  padding: 10px 16px;
  background: rgba(15, 26, 48, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(56, 189, 248, 0.3);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5), 0 0 16px rgba(37, 99, 235, 0.25);
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 2;
  transition: transform var(--transition-fast);
}

.floating-badge:hover {
  transform: scale(1.05) translateY(-2px);
  border-color: var(--brand-cyan-light);
}

.fb-top-left {
  top: 8%;
  left: -4%;
  animation: floatMotion1 5s ease-in-out infinite;
}

.fb-top-right {
  top: 14%;
  right: -6%;
  animation: floatMotion2 6s ease-in-out infinite;
}

.fb-bottom-left {
  bottom: 12%;
  left: -6%;
  animation: floatMotion2 5.5s ease-in-out infinite;
}

.fb-bottom-right {
  bottom: 8%;
  right: -4%;
  animation: floatMotion1 6.5s ease-in-out infinite;
}

.fb-icon {
  font-size: 1.4rem;
  line-height: 1;
}

.fb-text-val {
  font-size: 0.95rem;
  font-weight: 700;
  color: #FFFFFF;
  line-height: 1.2;
}

.fb-text-lbl {
  font-size: 0.75rem;
  color: var(--brand-cyan-light);
}

@keyframes floatMotion1 {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-8px); }
}

@keyframes floatMotion2 {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(8px); }
}

/* Vector Art Concentric Waves Animation */
@keyframes radarRing {
  0% { r: 50px; opacity: 0.8; }
  100% { r: 140px; opacity: 0; }
}

.pulse-ring-1 {
  animation: radarRing 4s linear infinite;
}

.pulse-ring-2 {
  animation: radarRing 4s linear infinite 2s;
}

/* ================================================================
   7. CORE ADVANTAGES (DYNAMIC CARDS SECTION)
   ================================================================ */
.cards-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 32px;
}

.card {
  background: var(--bg-dark-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--brand-gradient);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.card:hover {
  transform: translateY(-6px);
  background: var(--bg-dark-card-hover);
  border-color: rgba(37, 99, 235, 0.4);
  box-shadow: var(--shadow-glow);
}

.card:hover::before {
  opacity: 1;
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: rgba(37, 99, 235, 0.12);
  border: 1px solid rgba(37, 99, 235, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: 24px;
}

.card-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.card-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.75;
}

/* Streaming & AI Support Wide Card */
.support-card {
  background: linear-gradient(135deg, rgba(19, 31, 55, 0.85) 0%, rgba(13, 21, 39, 0.95) 100%);
  border: 1px solid rgba(56, 189, 248, 0.25);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  box-shadow: var(--shadow-md);
}

.support-content h3 {
  font-size: 1.45rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 10px;
}

.support-content p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  max-width: 520px;
}

.support-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  max-width: 480px;
}

.tag-pill {
  padding: 7px 15px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition-fast);
}

.tag-pill:hover {
  background: rgba(37, 99, 235, 0.25);
  border-color: rgba(56, 189, 248, 0.5);
  color: #FFFFFF;
  transform: translateY(-2px);
}

/* ================================================================
   8. PRICING SECTION
   ================================================================ */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-dark-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all var(--transition-normal);
}

.pricing-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(255, 255, 255, 0.2);
}

.pricing-card.featured {
  background: linear-gradient(180deg, rgba(22, 36, 68, 0.95) 0%, rgba(15, 26, 48, 0.95) 100%);
  border: 2px solid var(--brand-primary);
  box-shadow: var(--shadow-glow);
  transform: scale(1.03);
}

.pricing-card.featured:hover {
  transform: scale(1.03) translateY(-8px);
  box-shadow: 0 0 35px rgba(37, 99, 235, 0.5);
}

.pricing-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--brand-gradient);
  color: #FFFFFF;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 5px 18px;
  border-radius: var(--radius-full);
  letter-spacing: 0.05em;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.plan-type {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--brand-cyan-light);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}

.plan-name {
  font-size: 1.5rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 18px;
}

.plan-price-wrap {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 12px;
}

.plan-price {
  font-size: 3rem;
  font-weight: 800;
  color: #FFFFFF;
  line-height: 1;
}

.plan-period {
  font-size: 1rem;
  color: var(--text-secondary);
}

.plan-traffic-highlight {
  display: inline-block;
  background: rgba(37, 99, 235, 0.14);
  border: 1px solid rgba(56, 189, 248, 0.3);
  border-radius: var(--radius-sm);
  padding: 6px 14px;
  color: #60A5FA;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.plan-features {
  border-top: 1px solid var(--border-subtle);
  padding-top: 24px;
  margin-bottom: 32px;
  flex-grow: 1;
}

.plan-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 14px;
}

.plan-features li .check-icon {
  color: var(--status-success);
  font-weight: 800;
  font-size: 1.1rem;
  line-height: 1;
}

/* ================================================================
   9. SUPPORTED PLATFORMS & DOWNLOADS
   ================================================================ */
.platforms-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.platform-card {
  background: var(--bg-dark-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.platform-card:hover {
  transform: translateY(-6px);
  border-color: rgba(37, 99, 235, 0.4);
  box-shadow: var(--shadow-glow);
  background: var(--bg-dark-card-hover);
}

.platform-icon {
  font-size: 2.75rem;
  margin-bottom: 16px;
}

.platform-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 8px;
}

.platform-clients {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
  min-height: 44px;
  line-height: 1.5;
}

/* ================================================================
   10. WHY CHOOSE SECTION (DEEP FEATURES)
   ================================================================ */
.why-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  margin-bottom: 40px;
}

.why-card {
  background: var(--bg-dark-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  transition: all var(--transition-normal);
}

.why-card:hover {
  border-color: rgba(6, 182, 212, 0.4);
  box-shadow: var(--shadow-glow-cyan);
}

.why-card-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.why-card-icon {
  font-size: 2rem;
  line-height: 1;
}

.why-card-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: #FFFFFF;
}

.why-card-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* Metrics Grid */
.metrics-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 36px;
}

.metric-box {
  background: rgba(15, 26, 48, 0.6);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px 18px;
  text-align: center;
  transition: border-color var(--transition-fast);
}

.metric-box:hover {
  border-color: var(--border-highlight);
}

.metric-value {
  font-size: 2rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--brand-cyan-light);
  margin-bottom: 6px;
  line-height: 1.1;
}

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

/* Geek Terminal Window */
.terminal-window {
  margin-top: 36px;
  background: #080C14;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  overflow: hidden;
  font-family: var(--font-mono);
  box-shadow: var(--shadow-md);
}

.terminal-header {
  background: #10182A;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  display: inline-block;
}

.dot-red    { background: #EF4444; }
.dot-yellow { background: #F59E0B; }
.dot-green  { background: #10B981; }

.terminal-title {
  margin-left: 8px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.terminal-body {
  padding: 18px 20px;
  font-size: 0.85rem;
  line-height: 1.9;
  color: #A5B4FC;
}

.cmd-prompt {
  color: var(--brand-cyan-light);
  font-weight: 700;
}

.cmd-comment {
  color: #64748B;
  font-style: italic;
}

.cmd-highlight {
  color: #34D399;
  font-weight: 600;
}

/* ================================================================
   11. TESTIMONIALS MARQUEE SECTION
   ================================================================ */
.marquee-wrapper {
  overflow: hidden;
  position: relative;
  width: 100%;
  padding: 20px 0;
  mask-image: linear-gradient(to right, transparent 0%, black 10%, black 90%, transparent 100%);
  -webkit-mask-image: linear-gradient(to right, transparent 0%, black 10%, black 90%, transparent 100%);
}

.marquee-track {
  display: flex;
  width: max-content;
  gap: 24px;
  animation: scrollMarquee 45s linear infinite;
}

.marquee-wrapper:hover .marquee-track {
  animation-play-state: paused;
}

@keyframes scrollMarquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.testimonial-card {
  width: 380px;
  background: var(--bg-dark-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-fast);
}

.testimonial-card:hover {
  border-color: rgba(37, 99, 235, 0.4);
  transform: translateY(-2px);
}

.stars {
  color: #FBBF24;
  font-size: 1.1rem;
  letter-spacing: 2px;
  margin-bottom: 14px;
}

.testimonial-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.author-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--brand-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  color: #FFFFFF;
}

.author-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: #FFFFFF;
}

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

/* ================================================================
   12. FAQ SECTION (NATIVE DETAILS & SUMMARY)
   ================================================================ */
.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--bg-dark-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-fast);
}

.faq-item[open] {
  border-color: rgba(37, 99, 235, 0.45);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.faq-question {
  padding: 20px 24px;
  font-size: 1.05rem;
  font-weight: 600;
  color: #FFFFFF;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
  list-style: none;
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-question::after {
  content: '+';
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--brand-cyan-light);
  transition: transform var(--transition-fast);
  line-height: 1;
}

.faq-item[open] .faq-question::after {
  content: '−';
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 24px 22px 24px;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.8;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  padding-top: 16px;
}

/* ================================================================
   13. BOTTOM CTA SECTION
   ================================================================ */
.bottom-cta-box {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.22) 0%, rgba(6, 182, 212, 0.16) 100%);
  border: 1px solid rgba(56, 189, 248, 0.4);
  border-radius: var(--radius-xl);
  padding: 64px 40px;
  text-align: center;
  box-shadow: var(--shadow-glow);
}

.bottom-cta-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 16px;
  color: #FFFFFF;
}

.bottom-cta-desc {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 620px;
  margin: 0 auto 36px auto;
}

/* ================================================================
   14. FOOTER
   ================================================================ */
.footer {
  background: var(--bg-dark-1);
  border-top: 1px solid var(--border-subtle);
  padding: 48px 0 36px 0;
  text-align: center;
}

.footer-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 36px;
  margin-bottom: 24px;
}

.footer-nav a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.footer-nav a:hover {
  color: var(--brand-cyan-light);
}

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

/* ================================================================
   15. CONTENT SUBPAGES (ABOUT, TERMS, PRIVACY, SITEMAP)
   ================================================================ */
.page-header {
  padding-top: 140px;
  padding-bottom: 48px;
  text-align: center;
  background: radial-gradient(circle at 50% 30%, rgba(37, 99, 235, 0.14) 0%, transparent 60%);
  border-bottom: 1px solid var(--border-subtle);
}

.page-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 12px;
}

.page-content {
  padding: 64px 0 96px 0;
  max-width: 860px;
}

.content-block {
  background: var(--bg-dark-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  margin-bottom: 32px;
}

.content-block h2 {
  font-size: 1.45rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.content-block p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
}

.content-block ul {
  padding-left: 20px;
  list-style: disc;
  margin-bottom: 16px;
}

.content-block li {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 10px;
}

.content-block strong {
  color: #FFFFFF;
}

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

.sitemap-item {
  background: var(--bg-dark-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  transition: all var(--transition-fast);
}

.sitemap-item:hover {
  border-color: rgba(37, 99, 235, 0.45);
  transform: translateY(-2px);
}

.sitemap-item h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 6px;
}

.sitemap-item p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ================================================================
   16. RESPONSIVE DESIGN (@media)
   ================================================================ */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-content {
    text-align: center;
  }

  .hero-ctas {
    justify-content: center;
  }

  .hero-trust-badges {
    max-width: 580px;
    margin: 0 auto;
  }

  .hero-visual {
    max-width: 440px;
    margin: 0 auto;
  }

  .cards-grid-3,
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .pricing-card.featured {
    transform: none;
  }

  .pricing-card.featured:hover {
    transform: translateY(-8px);
  }

  .platforms-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .metrics-row {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .section {
    padding: 64px 0;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .hero-section {
    padding-top: 110px;
    padding-bottom: 60px;
  }

  .hero-title {
    font-size: 2.15rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .hero-trust-badges {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--bg-dark-1);
    border-bottom: 1px solid var(--border-nav-active);
    flex-direction: column;
    padding: 24px;
    gap: 18px;
    display: none;
    box-shadow: var(--shadow-lg);
  }

  .nav-links.active {
    display: flex;
  }

  .cards-grid-3,
  .pricing-grid,
  .platforms-grid,
  .why-grid,
  .metrics-row,
  .sitemap-list {
    grid-template-columns: 1fr;
  }

  .support-card {
    flex-direction: column;
    text-align: center;
    padding: 28px 20px;
  }

  .support-tags {
    justify-content: center;
  }

  .bottom-cta-box {
    padding: 40px 20px;
  }

  .bottom-cta-title {
    font-size: 1.75rem;
  }

  .footer-nav {
    flex-wrap: wrap;
    gap: 20px;
  }

  .floating-badge {
    padding: 6px 12px;
  }

  .fb-icon {
    font-size: 1.1rem;
  }

  .fb-text-val {
    font-size: 0.85rem;
  }

  .fb-text-lbl {
    font-size: 0.7rem;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.85rem;
  }

  .btn-lg {
    padding: 14px 24px;
    font-size: 1rem;
    width: 100%;
  }

  .hero-ctas {
    flex-direction: column;
    width: 100%;
  }

  .hero-ctas .btn {
    width: 100%;
  }

  .plan-price {
    font-size: 2.5rem;
  }
}

/* ================================================================
   17. ARTICLE HUB & ARTICLE DETAIL STYLES
   ================================================================ */
.article-hub-header {
  padding-top: 140px;
  padding-bottom: 56px;
  text-align: center;
  background: radial-gradient(circle at 50% 30%, rgba(37, 99, 235, 0.16) 0%, transparent 60%);
  border-bottom: 1px solid var(--border-subtle);
}

.article-hub-header h1 {
  font-size: 2.75rem;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 16px;
}

.article-hub-header p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto;
  line-height: 1.8;
}

.hub-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  padding: 64px 0 96px;
}

.hub-card {
  background: var(--bg-dark-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  color: inherit;
  text-decoration: none;
}

.hub-card:hover {
  transform: translateY(-6px);
  border-color: rgba(37, 99, 235, 0.45);
  box-shadow: var(--shadow-glow);
  background: var(--bg-dark-card-hover);
}

.hub-card-thumb {
  width: 100%;
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.2) 0%, rgba(6, 182, 212, 0.15) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  border-bottom: 1px solid var(--border-subtle);
}

.hub-card-body {
  padding: 24px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.hub-card-cat {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--brand-cyan-light);
  margin-bottom: 10px;
}

.hub-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #FFFFFF;
  line-height: 1.5;
  margin-bottom: 12px;
  flex-grow: 1;
}

.hub-card-excerpt {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 18px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.hub-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.825rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-subtle);
  padding-top: 14px;
  margin-top: auto;
}

.hub-card-readmore {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--brand-cyan-light);
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Breadcrumbs */
.breadcrumb {
  background: var(--bg-dark-1);
  border-bottom: 1px solid var(--border-subtle);
  padding: 12px 0;
  font-size: 0.875rem;
}

.breadcrumb-list {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.breadcrumb-list a {
  color: var(--text-secondary);
}

.breadcrumb-list a:hover {
  color: var(--brand-cyan-light);
}

.breadcrumb-sep {
  color: var(--text-muted);
  opacity: 0.6;
}

/* Article Page Layout */
.article-wrap {
  max-width: 860px;
  margin: 0 auto;
  padding: 48px 24px 96px;
}

.article-header {
  margin-bottom: 36px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-subtle);
}

.article-category {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--brand-cyan-light);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

.article-title {
  font-size: 2.35rem;
  font-weight: 800;
  line-height: 1.35;
  color: #FFFFFF;
  margin-bottom: 16px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* Table of Contents */
.article-toc {
  background: var(--bg-dark-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  margin-bottom: 40px;
}

.article-toc-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 14px;
}

.article-toc ol {
  padding-left: 20px;
  list-style: decimal;
}

.article-toc li {
  margin-bottom: 8px;
  font-size: 0.95rem;
}

.article-toc a {
  color: var(--text-secondary);
}

.article-toc a:hover {
  color: var(--brand-cyan-light);
  text-decoration: underline;
}

/* Article Prose */
.article-content {
  font-size: 1.05rem;
  line-height: 1.9;
  color: #CBD5E1;
}

.article-content h2 {
  font-size: 1.65rem;
  font-weight: 700;
  color: #FFFFFF;
  margin: 48px 0 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-subtle);
  scroll-margin-top: 90px;
}

.article-content h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: #F1F5F9;
  margin: 32px 0 14px;
  scroll-margin-top: 90px;
}

.article-content p {
  margin-bottom: 22px;
}

.article-content a {
  color: var(--brand-cyan-light);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-content a:hover {
  color: #FFFFFF;
}

.article-content strong {
  color: #FFFFFF;
  font-weight: 700;
}

.article-content ul, .article-content ol {
  padding-left: 24px;
  margin-bottom: 24px;
}

.article-content ul {
  list-style: disc;
}

.article-content ol {
  list-style: decimal;
}

.article-content li {
  margin-bottom: 10px;
  line-height: 1.8;
}

.article-content blockquote {
  border-left: 4px solid var(--brand-primary);
  background: rgba(37, 99, 235, 0.08);
  padding: 16px 22px;
  margin: 28px 0;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: #E2E8F0;
  font-style: italic;
}

/* Responsive Table */
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 28px 0;
  font-size: 0.95rem;
  display: table;
}

.article-content th {
  background: rgba(37, 99, 235, 0.25);
  color: #FFFFFF;
  padding: 14px 16px;
  text-align: left;
  font-weight: 700;
  border: 1px solid var(--border-medium);
}

.article-content td {
  padding: 12px 16px;
  border: 1px solid var(--border-subtle);
  vertical-align: top;
  background: var(--bg-dark-card);
}

.article-content tr:nth-child(even) td {
  background: rgba(15, 26, 48, 0.5);
}

/* Callout & CTA box in articles */
.cta-box {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.22) 0%, rgba(6, 182, 212, 0.16) 100%);
  border: 1px solid rgba(56, 189, 248, 0.4);
  border-radius: var(--radius-lg);
  padding: 32px 36px;
  margin: 40px 0;
  text-align: center;
  box-shadow: var(--shadow-glow);
}

.cta-box h4 {
  font-size: 1.35rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 10px;
}

.cta-box p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 20px !important;
}

.info-box {
  background: rgba(6, 182, 212, 0.08);
  border: 1px solid rgba(6, 182, 212, 0.25);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin: 28px 0;
}

.info-box-title {
  font-weight: 700;
  color: var(--brand-cyan-light);
  margin-bottom: 8px;
  font-size: 1rem;
}

.info-box p {
  margin-bottom: 0 !important;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

@media (max-width: 1024px) {
  .hub-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .hub-grid { grid-template-columns: 1fr; gap: 20px; padding: 40px 0 64px; }
  .article-hub-header { padding: 110px 0 44px; }
  .article-hub-header h1 { font-size: 2rem; }
  .article-wrap { padding: 32px 20px 60px; }
  .article-title { font-size: 1.75rem; }
  .article-content h2 { font-size: 1.4rem; margin-top: 36px; }
  .article-content h3 { font-size: 1.15rem; }
}

@media (max-width: 480px) {
  .article-title { font-size: 1.45rem; }
  .article-wrap { padding: 24px 16px 48px; }
}