/* ==========================================================================
   闪狐云 ShanHuYun - 跨境电商与外贸出海风 B2B CSS Style System
   Color Palette: Deep Corporate Navy, Royal Blue, Pure White, Cyber Cyan accents
   ========================================================================== */

:root {
  --primary-navy: #0B192C;
  --secondary-navy: #1E3E62;
  --accent-blue: #0052CC;
  --bright-cyan: #00D2FF;
  --glow-cyan: rgba(0, 210, 255, 0.3);
  --bg-gradient-dark: linear-gradient(135deg, #09121D 0%, #0E2238 50%, #050B14 100%);
  --bg-light: #F8FAFC;
  --surface-card: rgba(255, 255, 255, 0.05);
  --surface-card-hover: rgba(255, 255, 255, 0.09);
  --border-light: rgba(255, 255, 255, 0.12);
  --border-glow: rgba(0, 82, 204, 0.5);
  --text-main: #F1F5F9;
  --text-muted: #94A3B8;
  --text-dark: #0F172A;
  --text-dark-muted: #64748B;
  --success: #10B981;
  --warning: #F59E0B;
  --danger: #EF4444;
  --font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --transition-fast: 0.25s ease;
  --transition-normal: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --container-max: 1240px;
}

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

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

body {
  font-family: var(--font-family);
  background-color: var(--primary-navy);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

/* Background Canvas */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
  opacity: 0.65;
}

/* Utility Containers */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

.text-center { text-align: center; }
.text-cyan { color: var(--bright-cyan); }
.text-gradient {
  background: linear-gradient(135deg, #00D2FF 0%, #3B82F6 50%, #60A5FA 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Section Common Header */
.section-header {
  margin-bottom: 3.5rem;
  text-align: center;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 1rem;
  background: rgba(0, 82, 204, 0.2);
  border: 1px solid rgba(0, 210, 255, 0.3);
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--bright-cyan);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #FFFFFF;
  margin-bottom: 1rem;
  line-height: 1.25;
}

@media (min-width: 768px) {
  .section-title {
    font-size: 2.75rem;
  }
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 720px;
  margin: 0 auto;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 1.75rem;
  border-radius: 10px;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  outline: none;
}

.btn-primary {
  background: linear-gradient(135deg, #0052CC 0%, #00D2FF 100%);
  color: #FFFFFF;
  box-shadow: 0 8px 25px rgba(0, 82, 204, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 35px rgba(0, 210, 255, 0.5);
  color: #FFFFFF;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: #FFFFFF;
  border: 1px solid var(--border-light);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.16);
  border-color: rgba(0, 210, 255, 0.4);
  transform: translateY(-2px);
}

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

.btn-glow::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.3) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}

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

/* Header & Announcement Bar */
.announcement-bar {
  background: linear-gradient(90deg, #071526 0%, #0052CC 50%, #071526 100%);
  color: #E2E8F0;
  font-size: 0.85rem;
  padding: 0.5rem 1rem;
  text-align: center;
  font-weight: 500;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1.5rem;
}

.announcement-bar .badge {
  background: #00D2FF;
  color: #0B192C;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-weight: 700;
  font-size: 0.75rem;
}

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 25, 44, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: background var(--transition-fast);
}

.navbar-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.5rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #0052CC, #00D2FF);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.25rem;
  box-shadow: 0 0 15px var(--glow-cyan);
}

.logo-text {
  font-size: 1.35rem;
  font-weight: 800;
  color: #FFFFFF;
  letter-spacing: -0.02em;
}

.logo-sub {
  font-size: 0.75rem;
  color: var(--bright-cyan);
  font-weight: 600;
  margin-left: 0.25rem;
  background: rgba(0, 210, 255, 0.15);
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
}

.nav-link {
  color: #CBD5E1;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-link:hover, .nav-link.active {
  color: var(--bright-cyan);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--bright-cyan);
  transition: width var(--transition-fast);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero Section */
.hero {
  padding: 6rem 0 5rem;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3.5rem;
  align-items: center;
}

@media (min-width: 992px) {
  .hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
  }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 1rem;
  border-radius: 999px;
  background: rgba(0, 82, 204, 0.25);
  border: 1px solid rgba(0, 210, 255, 0.35);
  color: var(--bright-cyan);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero-badge i {
  color: var(--bright-cyan);
}

.hero-title {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.2;
  color: #FFFFFF;
  margin-bottom: 1.25rem;
  letter-spacing: -0.03em;
}

@media (min-width: 768px) {
  .hero-title {
    font-size: 3.5rem;
  }
}

.hero-description {
  font-size: 1.15rem;
  color: #94A3B8;
  margin-bottom: 2.25rem;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-item h4 {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--bright-cyan);
  line-height: 1;
  margin-bottom: 0.4rem;
}

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

/* Hero Dashboard Card Preview */
.hero-card-preview {
  background: rgba(15, 30, 50, 0.7);
  border: 1px solid rgba(0, 210, 255, 0.25);
  border-radius: 16px;
  padding: 1.75rem;
  backdrop-filter: blur(20px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 30px rgba(0, 82, 204, 0.2);
  position: relative;
}

.hero-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.hero-card-title {
  font-size: 1rem;
  font-weight: 700;
  color: #FFFFFF;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.status-dot-live {
  width: 10px;
  height: 10px;
  background: var(--success);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--success);
  animation: pulse-green 2s infinite;
}

@keyframes pulse-green {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 10px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.preview-grid {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.preview-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.04);
  padding: 0.75rem 1rem;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.preview-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.flag-icon {
  width: 24px;
  height: 18px;
  border-radius: 3px;
  object-fit: cover;
  background: #1E293B;
  display: inline-block;
}

.preview-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: #F8FAFC;
}

.preview-tag {
  font-size: 0.75rem;
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  background: rgba(0, 210, 255, 0.15);
  color: var(--bright-cyan);
}

.preview-latency {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--success);
}

/* Sections Styling */
.section {
  padding: 5rem 0;
  position: relative;
}

.section-darker {
  background: rgba(5, 12, 22, 0.6);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

/* Section 1: Pure Static IP Zone */
.b2b-feature-card {
  background: linear-gradient(135deg, rgba(20, 38, 63, 0.8) 0%, rgba(10, 20, 35, 0.9) 100%);
  border: 1px solid rgba(0, 210, 255, 0.2);
  border-radius: 16px;
  padding: 2.5rem;
  transition: all var(--transition-normal);
}

.b2b-feature-card:hover {
  border-color: rgba(0, 210, 255, 0.5);
  transform: translateY(-4px);
  box-shadow: 0 15px 40px rgba(0, 82, 204, 0.25);
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

@media (min-width: 992px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
}

.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
}

.grid-4 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

.feature-icon-wrapper {
  width: 54px;
  height: 54px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(0, 82, 204, 0.3), rgba(0, 210, 255, 0.2));
  border: 1px solid rgba(0, 210, 255, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bright-cyan);
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
}

.card-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 0.75rem;
}

.card-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

.bullet-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.bullet-list li {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.9rem;
  color: #E2E8F0;
}

.bullet-list i {
  color: var(--bright-cyan);
  font-size: 0.9rem;
}

/* Multi-Account Anti Association Module */
.anti-assoc-box {
  background: rgba(15, 28, 46, 0.7);
  border: 1px solid var(--border-light);
  border-radius: 20px;
  padding: 3rem;
  backdrop-filter: blur(15px);
}

.compare-table-wrapper {
  overflow-x: auto;
  margin-top: 2rem;
}

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

.compare-table th, .compare-table td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.compare-table th {
  background: rgba(0, 82, 204, 0.2);
  color: var(--bright-cyan);
  font-weight: 700;
  font-size: 0.95rem;
}

.compare-table td {
  font-size: 0.9rem;
  color: #CBD5E1;
}

.compare-table tr:hover td {
  background: rgba(255, 255, 255, 0.03);
}

/* Node Latency & Status Board */
.node-board {
  background: rgba(13, 25, 42, 0.85);
  border: 1px solid rgba(0, 210, 255, 0.2);
  border-radius: 20px;
  padding: 2rem;
}

.node-board-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.node-controls {
  display: flex;
  gap: 0.5rem;
}

.filter-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #CBD5E1;
  padding: 0.4rem 0.9rem;
  border-radius: 6px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn.active, .filter-btn:hover {
  background: var(--accent-blue);
  color: #FFFFFF;
  border-color: var(--bright-cyan);
}

.node-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 768px) {
  .node-grid { grid-template-columns: repeat(2, 1fr); }
}

.node-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 12px;
  padding: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all var(--transition-fast);
}

.node-card:hover {
  border-color: rgba(0, 210, 255, 0.4);
  background: rgba(255, 255, 255, 0.06);
}

.node-info {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.node-name {
  font-weight: 700;
  font-size: 0.95rem;
  color: #FFFFFF;
}

.node-type {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.node-ping-box {
  text-align: right;
}

.ping-val {
  font-size: 1rem;
  font-weight: 800;
  color: var(--success);
}

.ping-val.medium { color: var(--warning); }

.ping-status {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.3rem;
  justify-content: flex-end;
}

/* Pricing Plans */
.pricing-toggle-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  margin-bottom: 3rem;
}

.pricing-toggle {
  background: rgba(15, 30, 50, 0.9);
  padding: 0.3rem;
  border-radius: 999px;
  border: 1px solid var(--border-light);
  display: flex;
}

.toggle-opt {
  padding: 0.5rem 1.25rem;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.toggle-opt.active {
  background: var(--accent-blue);
  color: #FFFFFF;
}

.pricing-card {
  background: rgba(15, 30, 50, 0.75);
  border: 1px solid var(--border-light);
  border-radius: 20px;
  padding: 2.5rem 2rem;
  position: relative;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.pricing-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 210, 255, 0.4);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.pricing-card.popular {
  background: linear-gradient(145deg, rgba(16, 40, 75, 0.9) 0%, rgba(10, 22, 42, 0.95) 100%);
  border: 2px solid var(--bright-cyan);
  box-shadow: 0 10px 30px rgba(0, 210, 255, 0.2);
}

.popular-badge {
  position: absolute;
  top: -14px;
  right: 24px;
  background: linear-gradient(90deg, #0052CC, #00D2FF);
  color: white;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 0.25rem 0.85rem;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.plan-name {
  font-size: 1.35rem;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 0.5rem;
}

.plan-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  min-height: 2.5rem;
}

.plan-price-box {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.plan-price {
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
  line-height: 1;
}

.plan-currency {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--bright-cyan);
}

.plan-price-num {
  font-size: 3.75rem;
  font-weight: 900;
  color: #FFFFFF;
  letter-spacing: -0.03em;
  text-shadow: 0 0 25px rgba(0, 210, 255, 0.45);
}

.plan-unit {
  font-size: 1.1rem;
  color: #94A3B8;
  font-weight: 600;
}

.plan-features {
  list-style: none;
  margin-bottom: 2rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.plan-features li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: #E2E8F0;
}

.plan-features i {
  color: var(--bright-cyan);
  font-size: 0.9rem;
}

/* User Reviews Testimonials */
.testimonial-card {
  background: rgba(15, 30, 50, 0.6);
  border: 1px solid var(--border-light);
  border-radius: 16px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.testimonial-rating {
  color: #F59E0B;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.testimonial-text {
  font-size: 0.95rem;
  color: #E2E8F0;
  line-height: 1.6;
  margin-bottom: 1.5rem;
  font-style: italic;
}

.testimonial-user {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.user-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, #0052CC, #00D2FF);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: white;
}

.user-name {
  font-weight: 700;
  font-size: 0.95rem;
  color: #FFFFFF;
}

.user-role {
  font-size: 0.78rem;
  color: var(--bright-cyan);
}

/* Knowledge Base & 8 SEO Articles */
.kb-card {
  background: rgba(15, 30, 50, 0.7);
  border: 1px solid var(--border-light);
  border-radius: 16px;
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  cursor: pointer;
}

.kb-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 210, 255, 0.5);
  box-shadow: 0 12px 30px rgba(0, 82, 204, 0.3);
}

.kb-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--bright-cyan);
  background: rgba(0, 210, 255, 0.12);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  margin-bottom: 1rem;
  align-self: flex-start;
}

.kb-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 0.75rem;
  line-height: 1.4;
}

.kb-excerpt {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  line-height: 1.5;
  flex-grow: 1;
}

.kb-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--bright-cyan);
  font-weight: 600;
  padding-top: 0.75rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

/* Modal Overlay for SEO Articles */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(5, 12, 22, 0.85);
  backdrop-filter: blur(12px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: #0E1E33;
  border: 1px solid rgba(0, 210, 255, 0.3);
  border-radius: 20px;
  max-width: 850px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  padding: 2.5rem;
  position: relative;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.7);
  color: #E2E8F0;
}

.modal-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: white;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}

.modal-close:hover {
  background: rgba(239, 68, 68, 0.8);
}

.article-body h2 {
  color: #FFFFFF;
  font-size: 1.6rem;
  margin: 1.5rem 0 0.85rem;
}

.article-body h3 {
  color: var(--bright-cyan);
  font-size: 1.25rem;
  margin: 1.2rem 0 0.6rem;
}

.article-body p {
  margin-bottom: 1rem;
  line-height: 1.7;
  color: #CBD5E1;
}

.article-body ul {
  margin: 0 0 1rem 1.5rem;
}

.article-body li {
  margin-bottom: 0.4rem;
}

/* FAQ Accordion */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 860px;
  margin: 0 auto;
}

.faq-item {
  background: rgba(15, 30, 50, 0.6);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item.active {
  border-color: rgba(0, 210, 255, 0.4);
}

.faq-question {
  padding: 1.25rem 1.5rem;
  font-weight: 700;
  font-size: 1.05rem;
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  user-select: none;
}

.faq-icon {
  font-size: 1.1rem;
  color: var(--bright-cyan);
  transition: transform 0.3s ease;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 1.5rem;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 1.5rem 1.25rem 1.5rem;
}

/* Footer */
.footer {
  background: #050B14;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 4rem 0 2rem;
  color: var(--text-muted);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr repeat(3, 1fr);
  }
}

.footer-brand p {
  font-size: 0.9rem;
  margin-top: 1rem;
  line-height: 1.6;
  max-width: 320px;
}

.footer-title {
  font-size: 1rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.88rem;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--bright-cyan);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.85rem;
}

/* Responsive Navigation Drawer for Mobile */
@media (max-width: 991px) {
  .nav-menu {
    position: fixed;
    top: 4.5rem;
    left: -100%;
    width: 100%;
    height: calc(100vh - 4.5rem);
    background: #0B192C;
    flex-direction: column;
    padding: 2rem;
    align-items: flex-start;
    gap: 1.5rem;
    transition: left 0.3s ease;
  }

  .nav-menu.active {
    left: 0;
  }

  .mobile-toggle {
    display: block;
  }
}