/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;700;900&family=Outfit:wght@300;400;500;600;700;800&display=swap');

/* --- Design Tokens --- */
:root {
  --primary-pink: hsl(342, 92%, 65%);
  --primary-pink-hover: hsl(342, 92%, 58%);
  --pink-accent: hsl(325, 100%, 75%);
  --pink-glow: hsla(342, 92%, 65%, 0.3);
  --pink-glow-strong: hsla(342, 92%, 65%, 0.6);
  --bg-dark: hsl(342, 24%, 6%);
  --bg-darker: hsl(342, 24%, 4%);
  --bg-card: hsla(342, 20%, 12%, 0.6);
  --bg-card-hover: hsla(342, 20%, 18%, 0.85);
  --text-main: hsl(0, 0%, 96%);
  --text-muted: hsl(342, 10%, 70%);
  --text-pink: hsl(342, 90%, 75%);
  --border-pink: hsla(342, 90%, 75%, 0.12);
  --border-pink-active: hsla(342, 90%, 75%, 0.35);
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 12px 36px rgba(0, 0, 0, 0.3);
  --transition-normal: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: all 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
  --max-width: 1200px;
}

/* --- Global Reset & Base --- */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  scroll-behavior: smooth;
}

body {
  font-family: 'Outfit', 'Noto Sans SC', sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-darker);
}
::-webkit-scrollbar-thumb {
  background: var(--primary-pink);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--pink-accent);
}

/* --- Canvas Particle Background --- */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
  background: radial-gradient(circle at 50% 50%, hsl(342, 20%, 10%) 0%, var(--bg-dark) 100%);
}

/* --- Navigation --- */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-pink);
  transition: var(--transition-normal);
}

header.scrolled {
  background: hsla(342, 24%, 6%, 0.8);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.25rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-main);
  text-decoration: none;
  letter-spacing: -0.5px;
}

.logo span {
  background: linear-gradient(135deg, var(--text-main) 30%, var(--primary-pink) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-icon {
  width: 2.2rem;
  height: 2.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary-pink), var(--pink-accent));
  border-radius: 50%;
  box-shadow: 0 0 15px var(--pink-glow);
  color: #fff;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.nav-item a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition-normal);
  position: relative;
  padding: 0.5rem 0;
}

.nav-item a:hover,
.nav-item.active a {
  color: var(--primary-pink);
}

.nav-item a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-pink);
  transition: var(--transition-normal);
}

.nav-item a:hover::after,
.nav-item.active a::after {
  width: 100%;
}

.nav-btn {
  background: linear-gradient(135deg, var(--primary-pink), var(--pink-accent));
  color: white !important;
  padding: 0.6rem 1.5rem;
  border-radius: 50px;
  font-weight: 600;
  box-shadow: 0 4px 15px var(--pink-glow);
  transition: var(--transition-smooth) !important;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--pink-glow-strong);
}

.nav-btn::after {
  display: none !important;
}

/* Mobile Nav Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  background: none;
  border: none;
}

.nav-toggle span {
  display: block;
  width: 28px;
  height: 2px;
  background-color: var(--text-main);
  transition: var(--transition-normal);
}

/* --- Hero Section --- */
.hero {
  padding: 10rem 2rem 6rem 2rem;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  min-height: 100vh;
  justify-content: center;
}

.hero-tag {
  background: hsla(342, 92%, 65%, 0.1);
  border: 1px solid var(--border-pink-active);
  color: var(--primary-pink);
  padding: 0.5rem 1.5rem;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 2rem;
  animation: pulse 2s infinite;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.hero h1 {
  font-size: 4rem;
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -1.5px;
  margin-bottom: 1.5rem;
  max-width: 900px;
}

.hero h1 span {
  background: linear-gradient(135deg, #fff 40%, var(--primary-pink) 70%, var(--pink-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: block;
}

.hero-desc {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 650px;
  margin-bottom: 3rem;
}

.hero-ctas {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-pink), var(--pink-accent));
  color: white;
  padding: 1.1rem 2.8rem;
  border-radius: 50px;
  font-size: 1.1rem;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 8px 30px var(--pink-glow);
  transition: var(--transition-smooth);
  border: 1px solid rgba(255, 255, 255, 0.15);
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}

.btn-primary:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 35px var(--pink-glow-strong);
}

.btn-secondary {
  background: hsla(0, 0%, 100%, 0.05);
  color: var(--text-main);
  padding: 1.1rem 2.8rem;
  border-radius: 50px;
  font-size: 1.1rem;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid var(--border-pink);
  transition: var(--transition-smooth);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: hsla(0, 0%, 100%, 0.1);
  border-color: var(--primary-pink);
  transform: translateY(-2px);
}

.hero-stats {
  margin-top: 5rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4rem;
  max-width: 700px;
  width: 100%;
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.stat-num {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-main);
  background: linear-gradient(135deg, #fff, var(--text-pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* --- Section Global Structure --- */
section {
  padding: 7rem 2rem;
  max-width: var(--max-width);
  margin: 0 auto;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.section-tag {
  color: var(--primary-pink);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 2px;
  margin-bottom: 1rem;
}

.section-title {
  font-size: 2.8rem;
  font-weight: 800;
  margin-bottom: 1.25rem;
  letter-spacing: -1px;
}

.section-desc {
  color: var(--text-muted);
  max-width: 600px;
  font-size: 1.1rem;
}

/* Glass Card Global Style */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-pink);
  border-radius: 24px;
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
  transition: var(--transition-smooth);
}

.glass-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-pink-active);
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), 0 0 30px hsla(342, 92%, 65%, 0.05);
}

/* --- Core Advantages --- */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2.2rem;
}

.advantage-icon {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 18px;
  background: linear-gradient(135deg, hsla(342, 92%, 65%, 0.15), hsla(325, 100%, 75%, 0.15));
  border: 1px solid var(--border-pink-active);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-pink);
  font-size: 1.5rem;
  margin-bottom: 1.75rem;
  transition: var(--transition-normal);
}

.glass-card:hover .advantage-icon {
  background: linear-gradient(135deg, var(--primary-pink), var(--pink-accent));
  color: white;
  box-shadow: 0 0 20px var(--pink-glow);
  transform: scale(1.05);
}

.advantage-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.advantage-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* --- Node Status & Latency --- */
.nodes-container {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.nodes-status-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
  padding: 1.5rem 2.5rem;
  background: hsla(342, 20%, 8%, 0.5);
  border-radius: 18px;
  border: 1px solid var(--border-pink);
}

.status-summary {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.pulse-dot {
  width: 10px;
  height: 10px;
  background-color: #10b981;
  border-radius: 50%;
  animation: pulse-green 2s infinite;
}

.nodes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.node-card {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  padding: 2rem;
}

.node-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.node-info {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.node-flag {
  font-size: 1.75rem;
  line-height: 1;
}

.node-name {
  font-weight: 700;
  font-size: 1.1rem;
}

.node-type {
  font-size: 0.8rem;
  color: var(--text-muted);
  background: hsla(0, 0%, 100%, 0.05);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
}

.node-status-indicator {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
}

.latency-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.latency-dot.good { background-color: #10b981; }
.latency-dot.medium { background-color: #f59e0b; }
.latency-dot.bad { background-color: #ef4444; }

.node-latency-value {
  font-family: monospace;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px dashed var(--border-pink);
  padding-top: 1rem;
}

.node-latency-value span:last-child {
  color: var(--primary-pink);
}

.speed-graph {
  height: 35px;
  display: flex;
  align-items: flex-end;
  gap: 3px;
  margin-top: 0.5rem;
}

.speed-bar {
  flex: 1;
  background: linear-gradient(to top, var(--primary-pink), var(--pink-accent));
  border-radius: 2px;
  transition: height 0.5s ease;
  opacity: 0.7;
}

.speed-bar:hover {
  opacity: 1;
}

/* --- Pricing Plans --- */
.pricing-toggle-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  margin-bottom: 4rem;
}

.pricing-toggle-wrap span {
  font-weight: 600;
  font-size: 1.05rem;
}

.pricing-toggle-label {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 30px;
}

.pricing-toggle-label input {
  opacity: 0;
  width: 0;
  height: 0;
}

.pricing-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--bg-card);
  border: 1px solid var(--border-pink);
  transition: .4s;
  border-radius: 34px;
}

.pricing-slider:before {
  position: absolute;
  content: "";
  height: 20px;
  width: 20px;
  left: 4px;
  bottom: 4px;
  background-color: var(--text-main);
  transition: .4s;
  border-radius: 50%;
}

input:checked + .pricing-slider {
  background-color: var(--primary-pink);
}

input:checked + .pricing-slider:before {
  transform: translateX(30px);
}

.discount-badge {
  background: linear-gradient(135deg, #10b981, #059669);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 700;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2.5rem;
  align-items: stretch;
}

.pricing-card {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
}

.pricing-card.popular {
  border-color: var(--primary-pink);
  box-shadow: 0 15px 40px var(--pink-glow), var(--shadow-lg);
}

.pricing-card.popular::before {
  content: '最受欢迎';
  position: absolute;
  top: -15px;
  right: 25px;
  background: linear-gradient(135deg, var(--primary-pink), var(--pink-accent));
  color: white;
  padding: 0.35rem 1.2rem;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 700;
  box-shadow: 0 4px 10px var(--pink-glow);
}

.pricing-header h3 {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
}

.pricing-header p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 2rem;
}

.pricing-price {
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1;
  margin-bottom: 2rem;
  display: flex;
  align-items: baseline;
}

.pricing-price span {
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--text-muted);
}

.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  margin-bottom: 3rem;
  border-top: 1px solid var(--border-pink);
  padding-top: 2rem;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.98rem;
}

.pricing-features i {
  color: var(--primary-pink);
  font-size: 1.1rem;
}

.pricing-btn {
  width: 100%;
  padding: 1.1rem;
  border-radius: 16px;
  font-weight: 700;
  font-size: 1.05rem;
  text-align: center;
  text-decoration: none;
  transition: var(--transition-smooth);
}

.pricing-btn.btn-outline {
  background: transparent;
  color: var(--text-main);
  border: 1px solid var(--border-pink-active);
}

.pricing-btn.btn-outline:hover {
  background: hsla(0, 0%, 100%, 0.05);
  border-color: var(--primary-pink);
}

/* --- User Reviews --- */
.reviews-slider-container {
  overflow: hidden;
  position: relative;
  width: 100%;
  padding: 1rem 0;
}

.reviews-track {
  display: flex;
  gap: 2rem;
  transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1);
  will-change: transform;
}

.review-card {
  flex: 0 0 calc(33.333% - 1.333rem);
  min-width: 300px;
}

.review-stars {
  color: #fbbf24;
  margin-bottom: 1.5rem;
  display: flex;
  gap: 0.25rem;
}

.review-text {
  font-size: 1.05rem;
  color: var(--text-main);
  margin-bottom: 2rem;
  font-style: italic;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.author-img {
  width: 3.2rem;
  height: 3.2rem;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--primary-pink);
}

.author-info h4 {
  font-weight: 700;
  font-size: 1rem;
}

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

.reviews-nav {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 3.5rem;
}

.reviews-nav-btn {
  width: 3.2rem;
  height: 3.2rem;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border-pink);
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-normal);
  font-size: 1.25rem;
}

.reviews-nav-btn:hover {
  background: var(--primary-pink);
  color: white;
  border-color: var(--primary-pink);
  box-shadow: 0 4px 15px var(--pink-glow);
}

/* --- Knowledge Base & Tutorials --- */
.kb-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 2rem;
}

.kb-card {
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
}

.kb-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.kb-tag {
  color: var(--primary-pink);
  font-weight: 600;
  text-transform: uppercase;
}

.kb-title {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 1.25rem;
  transition: var(--transition-normal);
}

.kb-card:hover .kb-title {
  color: var(--primary-pink);
}

.kb-excerpt {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin-bottom: 2rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.kb-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--primary-pink);
  font-weight: 700;
  font-size: 0.95rem;
}

.kb-link i {
  transition: transform 0.3s ease;
}

.kb-card:hover .kb-link i {
  transform: translateX(4px);
}

/* --- FAQ Accordion --- */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.faq-item {
  border-radius: 16px;
  border: 1px solid var(--border-pink);
  background: var(--bg-card);
  overflow: hidden;
  transition: var(--transition-normal);
}

.faq-question {
  width: 100%;
  padding: 1.8rem 2.2rem;
  background: transparent;
  border: none;
  color: var(--text-main);
  text-align: left;
  font-size: 1.15rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
}

.faq-question span {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.faq-question i {
  color: var(--primary-pink);
  font-size: 1.1rem;
}

.faq-icon-arrow {
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  color: var(--text-muted);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  padding: 0 2.2rem;
}

.faq-answer-inner {
  padding-bottom: 2rem;
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.7;
}

/* FAQ Active State */
.faq-item.active {
  background: var(--bg-card-hover);
  border-color: var(--border-pink-active);
  box-shadow: var(--shadow-sm);
}

.faq-item.active .faq-icon-arrow {
  transform: rotate(180deg);
  color: var(--primary-pink);
}

/* --- Footer --- */
footer {
  background: var(--bg-darker);
  border-top: 1px solid var(--border-pink);
  padding: 5rem 2rem 2.5rem 2rem;
  position: relative;
  z-index: 10;
}

.footer-grid {
  max-width: var(--max-width);
  margin: 0 auto 4rem auto;
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 4rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.footer-desc {
  color: var(--text-muted);
  max-width: 320px;
  font-size: 0.95rem;
}

.footer-socials {
  display: flex;
  gap: 1rem;
}

.social-link {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: hsla(0, 0%, 100%, 0.05);
  border: 1px solid var(--border-pink);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  text-decoration: none;
  transition: var(--transition-normal);
}

.social-link:hover {
  background: var(--primary-pink);
  color: white;
  border-color: var(--primary-pink);
  transform: translateY(-2px);
}

.footer-col h4 {
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 1.75rem;
  position: relative;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 25px;
  height: 2px;
  background-color: var(--primary-pink);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  transition: var(--transition-normal);
}

.footer-links a:hover {
  color: var(--primary-pink);
  padding-left: 4px;
}

.footer-bottom {
  max-width: var(--max-width);
  margin: 0 auto;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 2.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* --- Knowledge Base Article Reading Overlay Modal --- */
.article-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1000;
  background: rgba(10, 5, 8, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
  padding: 2rem 1rem;
}

.article-modal.active {
  opacity: 1;
  pointer-events: all;
}

.article-modal-container {
  background: var(--bg-dark);
  border: 1px solid var(--border-pink-active);
  border-radius: 28px;
  max-width: 800px;
  width: 100%;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.6), 0 0 50px rgba(255, 105, 180, 0.1);
  transform: scale(0.95);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.article-modal.active .article-modal-container {
  transform: scale(1);
}

.article-modal-header {
  padding: 2rem 2.5rem 1.5rem 2.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-pink);
}

.article-modal-tags {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.modal-close-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-pink);
  color: var(--text-main);
  width: 2.8rem;
  height: 2.8rem;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-normal);
  font-size: 1.2rem;
}

.modal-close-btn:hover {
  background: var(--primary-pink);
  color: white;
  border-color: var(--primary-pink);
  transform: rotate(90deg);
}

.article-modal-body {
  padding: 2.5rem;
  overflow-y: auto;
  flex: 1;
}

.article-content {
  font-size: 1.1rem;
  color: var(--text-main);
  line-height: 1.8;
}

.article-content h1, 
.article-content h2, 
.article-content h3 {
  color: #fff;
  margin-top: 2rem;
  margin-bottom: 1rem;
  font-weight: 800;
}

.article-content h1 { font-size: 2rem; }
.article-content h2 { font-size: 1.5rem; border-left: 4px solid var(--primary-pink); padding-left: 0.75rem; }
.article-content h3 { font-size: 1.25rem; }

.article-content p {
  margin-bottom: 1.5rem;
  color: var(--text-muted);
}

.article-content ul, 
.article-content ol {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
  color: var(--text-muted);
}

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

.article-content code {
  background: hsla(0, 0%, 100%, 0.05);
  border: 1px solid var(--border-pink);
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  font-family: monospace;
  font-size: 0.95rem;
  color: var(--primary-pink);
}

.article-content pre {
  background: var(--bg-card);
  border: 1px solid var(--border-pink);
  padding: 1.5rem;
  border-radius: 12px;
  overflow-x: auto;
  margin-bottom: 1.5rem;
}

.article-content pre code {
  background: transparent;
  border: none;
  padding: 0;
  color: var(--text-main);
}

.article-content blockquote {
  border-left: 4px solid var(--primary-pink);
  padding-left: 1.25rem;
  font-style: italic;
  margin: 1.5rem 0;
  color: var(--text-pink);
}

/* --- Dynamic Animations --- */
@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(255, 105, 180, 0.4);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(255, 105, 180, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(255, 105, 180, 0);
  }
}

@keyframes pulse-green {
  0% {
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.5);
  }
  70% {
    box-shadow: 0 0 0 8px rgba(16, 185, 129, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
  }
}

/* --- Responsive Media Queries --- */
@media (max-width: 1024px) {
  .hero h1 {
    font-size: 3.2rem;
  }
  .review-card {
    flex: 0 0 calc(50% - 1rem);
  }
  .footer-grid {
    grid-template-columns: 1.5fr repeat(3, 1fr);
    gap: 2.5rem;
  }
}

@media (max-width: 768px) {
  /* Navigation mobile menu */
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: hsla(342, 24%, 6%, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-left: 1px solid var(--border-pink);
    flex-direction: column;
    justify-content: center;
    padding: 3rem;
    gap: 2.5rem;
    transition: var(--transition-smooth);
    z-index: 99;
  }

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

  .nav-toggle {
    display: flex;
    z-index: 100;
  }

  /* hamburger cross animation */
  .nav-toggle.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  .nav-toggle.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  .hero {
    padding-top: 8rem;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero-stats {
    gap: 2rem;
  }

  .stat-num {
    font-size: 2rem;
  }

  .section-title {
    font-size: 2.2rem;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 450px;
    margin: 0 auto;
  }

  .review-card {
    flex: 0 0 100%;
  }

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

  .footer-brand {
    align-items: center;
    text-align: center;
  }

  .footer-brand .footer-desc {
    max-width: 100%;
  }

  .footer-col {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .footer-col h4::after {
    left: 50%;
    transform: translateX(-50%);
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .article-modal-header {
    padding: 1.5rem 1.5rem 1rem 1.5rem;
  }
  
  .article-modal-body {
    padding: 1.5rem;
  }
  
  .article-content h1 {
    font-size: 1.5rem;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2.1rem;
  }

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

  .btn-primary, .btn-secondary {
    width: 100%;
    justify-content: center;
  }

  .hero-stats {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}