/* ==========================================================================
   飞星 (Feixing VPN) - 宇宙科技风高阶 CSS 样式表
   域名: fxvpn.homes
   ========================================================================== */

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

:root {
  --bg-dark: #070913;
  --bg-card: rgba(15, 23, 42, 0.68);
  --bg-card-hover: rgba(30, 41, 59, 0.85);
  --border-glow: rgba(0, 242, 254, 0.25);
  --border-glow-hover: rgba(0, 242, 254, 0.65);
  
  --primary-cyan: #00f2fe;
  --primary-blue: #4facfe;
  --primary-purple: #9d4edd;
  --primary-pink: #f72585;
  --neon-green: #00ff87;
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  --font-tech: 'Orbitron', 'Noto Sans SC', sans-serif;
  --font-body: 'Inter', 'Noto Sans SC', sans-serif;
  
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;

  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* 宇宙外星背景图透明化展示 (Ultra-Translucent Ambient Cosmic Layer) */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  background-image: url('../assets/cosmic-alien-bg.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0.10; /* 极低 10% 不透明度，隐约暗夜微光纹理 */
  filter: saturate(1.1) contrast(1.05);
  pointer-events: none;
}

/* 科技感深空微光径向发光遮罩 */
body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background: 
    radial-gradient(circle at 50% 0%, rgba(112, 0, 255, 0.15), transparent 70%),
    radial-gradient(circle at 85% 35%, rgba(0, 242, 254, 0.12), transparent 60%),
    radial-gradient(circle at 15% 75%, rgba(247, 37, 133, 0.10), transparent 60%);
  pointer-events: none;
}

/* Typography & Tech Text Glow */
h1, h2, h3, h4, h5, h6, .tech-font {
  font-family: var(--font-tech);
  letter-spacing: 0.5px;
}

.glow-text-cyan {
  color: var(--primary-cyan);
  text-shadow: 0 0 12px rgba(0, 242, 254, 0.6), 0 0 25px rgba(0, 242, 254, 0.3);
}

.glow-text-purple {
  color: var(--primary-purple);
  text-shadow: 0 0 12px rgba(157, 78, 221, 0.6), 0 0 25px rgba(157, 78, 221, 0.3);
}

.gradient-text {
  background: linear-gradient(135deg, #ffffff 0%, var(--primary-cyan) 50%, var(--primary-purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

a {
  color: var(--primary-cyan);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: #ffffff;
  text-shadow: 0 0 8px var(--primary-cyan);
}

/* Navigation Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(7, 9, 19, 0.75);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 16px 0;
  transition: var(--transition);
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.4rem;
  font-weight: 800;
}

.brand-logo img {
  width: 42px;
  height: 42px;
  filter: drop-shadow(0 0 10px rgba(0, 242, 254, 0.8));
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
}

.nav-links a:hover {
  color: var(--primary-cyan);
}

/* CTA Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 28px;
  border-radius: 9999px;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  outline: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-cyan) 0%, var(--primary-blue) 50%, var(--primary-purple) 100%);
  color: #050714;
  box-shadow: 0 0 25px rgba(0, 242, 254, 0.4), 0 0 50px rgba(112, 0, 255, 0.2);
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  transition: 0.6s;
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-primary:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 0 35px rgba(0, 242, 254, 0.7), 0 0 60px rgba(112, 0, 255, 0.4);
}

.btn-secondary {
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid var(--border-glow);
  color: var(--text-main);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  border-color: var(--primary-cyan);
  box-shadow: 0 0 20px rgba(0, 242, 254, 0.3);
  transform: translateY(-2px);
}

/* Hero Section */
.hero {
  padding: 170px 0 100px;
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 9999px;
  background: rgba(0, 242, 254, 0.1);
  border: 1px solid rgba(0, 242, 254, 0.3);
  color: var(--primary-cyan);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero-tag .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--neon-green);
  box-shadow: 0 0 8px var(--neon-green);
  animation: pulse 1.8s infinite;
}

.hero h1 {
  font-size: 3.4rem;
  line-height: 1.15;
  margin-bottom: 24px;
  font-weight: 900;
}

.hero p {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 36px;
  max-width: 600px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.live-stats {
  display: flex;
  gap: 36px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-item .num {
  font-size: 1.8rem;
  font-weight: 800;
  font-family: var(--font-tech);
  color: var(--primary-cyan);
}

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

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.hero-visual img {
  width: 100%;
  max-width: 480px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-glow);
  box-shadow: 0 0 40px rgba(0, 242, 254, 0.25), 0 0 80px rgba(157, 78, 221, 0.2);
  animation: floatVisual 6s ease-in-out infinite;
}

@keyframes floatVisual {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-14px) rotate(1deg); }
}

@keyframes pulse {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.2); opacity: 1; box-shadow: 0 0 14px var(--neon-green); }
  100% { transform: scale(0.95); opacity: 0.8; }
}

/* Feature Cards Grid */
.section {
  padding: 90px 0;
  position: relative;
}

.section-title {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 60px;
}

.section-title h2 {
  font-size: 2.4rem;
  margin-bottom: 16px;
}

.section-title p {
  color: var(--text-muted);
  font-size: 1.05rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  backdrop-filter: blur(16px);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--primary-cyan), var(--primary-purple));
  opacity: 0;
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-glow-hover);
  box-shadow: 0 12px 30px rgba(0, 242, 254, 0.15);
}

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

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background: rgba(0, 242, 254, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 20px;
  border: 1px solid rgba(0, 242, 254, 0.2);
}

.feature-card h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Pricing Section ("价格检索网上") */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 28px;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  backdrop-filter: blur(16px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
  position: relative;
}

.pricing-card.popular {
  border-color: var(--primary-cyan);
  background: rgba(15, 23, 42, 0.85);
  box-shadow: 0 0 35px rgba(0, 242, 254, 0.2);
  transform: scale(1.03);
}

.badge-popular {
  position: absolute;
  top: -14px;
  right: 28px;
  background: linear-gradient(135deg, var(--primary-cyan), var(--primary-purple));
  color: #000;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 4px 14px;
  border-radius: 9999px;
  text-transform: uppercase;
}

.pricing-header h3 {
  font-size: 1.4rem;
  margin-bottom: 10px;
}

.pricing-header .price {
  font-size: 2.8rem;
  font-weight: 900;
  font-family: var(--font-tech);
  color: var(--text-main);
  margin: 16px 0 8px;
}

.pricing-header .price span {
  font-size: 1rem;
  color: var(--text-muted);
  font-weight: 400;
}

.pricing-header .desc {
  font-size: 0.88rem;
  color: var(--text-dim);
  margin-bottom: 24px;
}

.pricing-features {
  list-style: none;
  margin-bottom: 32px;
}

.pricing-features li {
  padding: 10px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--text-muted);
  font-size: 0.92rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.pricing-features li::before {
  content: '✓';
  color: var(--primary-cyan);
  font-weight: 900;
}

/* Articles Hub & Cards */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 28px;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-md);
  padding: 32px;
  backdrop-filter: blur(16px);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.article-card:hover {
  border-color: var(--primary-cyan);
  transform: translateY(-4px);
  box-shadow: 0 10px 25px rgba(0, 242, 254, 0.15);
}

.article-meta {
  display: flex;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--primary-cyan);
  margin-bottom: 12px;
}

.article-card h3 {
  font-size: 1.25rem;
  margin-bottom: 14px;
  line-height: 1.4;
}

.article-card p {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin-bottom: 20px;
  flex-grow: 1;
}

.article-link {
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary-cyan);
}

/* Customer Reviews Marquee Slider (指令 4: 客户评论 平排左右自动展示) */
.marquee-wrapper {
  overflow: hidden;
  width: 100%;
  position: relative;
  padding: 20px 0;
  mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}

.marquee-track {
  display: flex;
  gap: 24px;
  width: max-content;
  animation: marqueeScroll 35s linear infinite;
}

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

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

.review-card {
  width: 340px;
  flex-shrink: 0;
  background: var(--bg-card);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-md);
  padding: 28px;
  backdrop-filter: blur(16px);
}

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

.avatar {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-cyan), var(--primary-purple));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: #000;
  font-size: 1.1rem;
}

.user-info h4 {
  font-size: 1rem;
  margin-bottom: 2px;
}

.user-info span {
  font-size: 0.8rem;
  color: var(--text-dim);
}

.stars {
  color: #ffb703;
  margin-bottom: 12px;
  font-size: 0.9rem;
}

.review-text {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* FAQ Accordion */
.faq-container {
  max-width: 840px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-md);
  overflow: hidden;
  backdrop-filter: blur(16px);
  transition: var(--transition);
}

.faq-question {
  padding: 24px;
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}

.faq-icon {
  font-size: 1.3rem;
  color: var(--primary-cyan);
  transition: var(--transition);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease-out, padding 0.3s ease;
  padding: 0 24px;
  color: var(--text-muted);
  font-size: 0.95rem;
  border-top: 1px solid transparent;
}

.faq-item.active .faq-answer {
  max-height: 400px;
  padding: 16px 24px 24px;
  border-top-color: rgba(255, 255, 255, 0.05);
}

/* Single Article Layout (SEO Pages) */
.article-header {
  padding: 150px 0 50px;
  text-align: center;
  max-width: 860px;
  margin: 0 auto;
}

.article-header h1 {
  font-size: 2.6rem;
  line-height: 1.25;
  margin-bottom: 20px;
}

.article-body {
  max-width: 860px;
  margin: 0 auto 80px;
  background: var(--bg-card);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-lg);
  padding: 48px;
  backdrop-filter: blur(16px);
  font-size: 1.05rem;
  line-height: 1.8;
  color: #cbd5e1;
}

.article-body h2 {
  font-size: 1.7rem;
  color: var(--primary-cyan);
  margin: 36px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(0, 242, 254, 0.2);
}

.article-body h3 {
  font-size: 1.3rem;
  color: #ffffff;
  margin: 28px 0 12px;
}

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

.article-body ul, .article-body ol {
  margin: 0 0 24px 24px;
}

.article-body li {
  margin-bottom: 8px;
}

.cta-box {
  background: linear-gradient(135deg, rgba(0, 242, 254, 0.1), rgba(157, 78, 221, 0.15));
  border: 1px solid var(--primary-cyan);
  border-radius: var(--radius-md);
  padding: 32px;
  text-align: center;
  margin: 40px 0;
}

.cta-box h3 {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.cta-box p {
  color: var(--text-muted);
  margin-bottom: 24px;
}

/* Footer & PBN Friendship Link Area (核心任务 2 强制重构规定) */
footer, .site-footer {
  background: rgba(4, 6, 14, 0.95);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 50px 0 30px;
  margin-top: 80px;
  text-align: center;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.2rem;
  font-weight: 700;
}

.footer-brand img {
  width: 32px;
  height: 32px;
}

.footer-nav {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  justify-content: center;
  list-style: none;
}

.footer-nav a {
  color: var(--text-dim);
  font-size: 0.9rem;
}

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

/* 核心任务 2 友情链接区 PBN 权重管道 (精准 SEO dofollow 锚文本) */
.friend-links-area {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px dashed rgba(255, 255, 255, 0.08);
  font-size: 0.8rem;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.friend-links-area span {
  opacity: 0.7;
}

.friend-links-area a {
  color: #64748b;
  text-decoration: none;
  font-size: 0.82rem;
  transition: color 0.2s ease;
}

.friend-links-area a:hover {
  color: var(--primary-cyan);
  text-shadow: 0 0 6px var(--primary-cyan);
}

/* 核心网络架构展示区 (Network Architecture Display) */
.arch-container {
  background: var(--bg-card);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  backdrop-filter: blur(20px);
  box-shadow: 0 0 40px rgba(0, 242, 254, 0.1);
  margin-bottom: 70px;
  position: relative;
  overflow: hidden;
}

.arch-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  flex-wrap: wrap;
  gap: 16px;
}

.arch-title-group h3 {
  font-size: 1.6rem;
  margin-bottom: 6px;
}

.arch-title-group p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.arch-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 255, 135, 0.1);
  border: 1px solid var(--neon-green);
  color: var(--neon-green);
  padding: 6px 16px;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 700;
  font-family: var(--font-tech);
}

/* 架构拓扑流程图 (Visual Topology Diagram) */
.arch-diagram-flow {
  display: grid;
  grid-template-columns: 1fr auto 1.3fr auto 1fr;
  gap: 20px;
  align-items: center;
  margin-bottom: 40px;
}

@media (max-width: 992px) {
  .arch-diagram-flow {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

.arch-box {
  background: rgba(10, 15, 30, 0.8);
  border: 1px solid rgba(0, 242, 254, 0.3);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  text-align: center;
  position: relative;
  transition: var(--transition);
}

.arch-box:hover {
  border-color: var(--primary-cyan);
  box-shadow: 0 0 25px rgba(0, 242, 254, 0.25);
  transform: translateY(-3px);
}

.arch-box-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.arch-box h4 {
  font-size: 1.1rem;
  color: #ffffff;
  margin-bottom: 8px;
}

.arch-box p {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.protocol-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
  margin-top: 12px;
}

.protocol-tag {
  background: rgba(0, 242, 254, 0.12);
  color: var(--primary-cyan);
  border: 1px solid rgba(0, 242, 254, 0.25);
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: 4px;
  font-family: var(--font-tech);
}

/* 拓扑通道光轨箭头 */
.arch-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--primary-cyan);
  position: relative;
}

.arch-arrow-line {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-cyan), var(--primary-purple));
  position: relative;
  overflow: hidden;
  border-radius: 2px;
}

.arch-arrow-line::after {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: #ffffff;
  box-shadow: 0 0 10px #ffffff, 0 0 20px var(--primary-cyan);
  animation: energyPulse 1.8s infinite linear;
}

@keyframes energyPulse {
  0% { left: -100%; }
  100% { left: 100%; }
}

.arch-arrow-label {
  font-size: 0.75rem;
  color: var(--primary-cyan);
  margin-top: 6px;
  font-family: var(--font-tech);
  white-space: nowrap;
}

/* 6 节点 HUD 实时指标网格 */
.arch-nodes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
  margin-bottom: 28px;
}

.node-hud-card {
  background: rgba(7, 11, 24, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  padding: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: var(--transition);
}

.node-hud-card:hover {
  border-color: var(--primary-cyan);
  background: rgba(15, 23, 42, 0.9);
}

.node-hud-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

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

.node-name {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-main);
}

.node-sub {
  font-size: 0.76rem;
  color: var(--text-dim);
}

.node-hud-metrics {
  text-align: right;
}

.node-ping-highlight {
  font-size: 1.15rem;
  font-weight: 800;
  font-family: var(--font-tech);
  color: var(--primary-cyan);
}

.node-status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--neon-green);
  box-shadow: 0 0 6px var(--neon-green);
  margin-right: 4px;
}

/* 架构总指标 Footer Bar */
.arch-telemetry-bar {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(0, 242, 254, 0.2);
  border-radius: var(--radius-sm);
  padding: 14px 24px;
  display: flex;
  justify-content: space-around;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.arch-telemetry-bar strong {
  color: var(--text-main);
  font-family: var(--font-tech);
}

.copyright {
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-top: 8px;
}

/* Responsive Mobile Layout */
@media (max-width: 992px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    padding-top: 130px;
  }

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

  .hero p {
    margin: 0 auto 32px;
  }


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

  .live-stats {
    justify-content: center;
  }

  .hero-visual img {
    max-width: 340px;
  }
}

@media (max-width: 600px) {
  .nav-links {
    display: none;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .article-body {
    padding: 24px;
  }
}