/* ==========================================================================
   Flybit 机场  -  打孔遥测专线选路系统
   (Punched-Tape Telemetry System)
   ========================================================================== */

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

:root {
  /* Pale Cream Base & Paper Palette */
  --bg-main: #F4F1EA;
  --bg-subtle: #EBE6DC;
  --bg-tape: #FFFDF8;
  --bg-tape-accent: #FAF6ED;
  --bg-dark-tape: #1A2128;
  
  /* Telemetry Accent Colors */
  --cyan-glow: #00F5D4;
  --cyan-beam: #06B6D4;
  --cyan-deep: #0284C7;
  --cyan-light-bg: rgba(0, 245, 212, 0.08);
  --paper-border: rgba(160, 150, 130, 0.3);
  --paper-shadow: 0 12px 32px -8px rgba(70, 60, 45, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
  --tape-hover-shadow: 0 20px 45px -10px rgba(6, 182, 212, 0.22), 0 0 0 1px rgba(0, 245, 212, 0.5);
  
  /* Typography */
  --font-main: 'Plus Jakarta Sans', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'Share Tech Mono', 'Courier New', Consolas, monospace;
  
  /* Text Colors */
  --text-dark: #1C2329;
  --text-muted: #475467;
  --text-light: #667085;
  --text-accent: #0284C7;
  
  /* Radii & Geometry */
  --radius-tape: 12px;
  --radius-sm: 6px;
  --radius-pill: 9999px;
  
  /* Transition */
  --transition-smooth: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

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

body {
  font-family: var(--font-main);
  background-color: var(--bg-main);
  color: var(--text-dark);
  line-height: 1.75;
  overflow-x: hidden;
  position: relative;
  /* Paper Micro-texture */
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(6, 182, 212, 0.05) 0%, transparent 30%),
    radial-gradient(circle at 90% 80%, rgba(2, 132, 199, 0.04) 0%, transparent 35%),
    repeating-linear-gradient(0deg, transparent, transparent 49px, rgba(160, 150, 130, 0.05) 50px);
  background-attachment: fixed;
}

/* Background Canvas for Particle Backdrop */
#kinetic-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  opacity: 0.85;
}

.app-wrapper {
  position: relative;
  z-index: 1;
}

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Monospace Telemetry Utilities */
.telemetry-font {
  font-family: var(--font-mono);
  letter-spacing: -0.02em;
}

/* Punched Paper Tape Card Base */
.punched-tape-card {
  background: var(--bg-tape);
  border: 1px solid var(--paper-border);
  border-radius: var(--radius-tape);
  padding: 32px;
  position: relative;
  box-shadow: var(--paper-shadow);
  transition: var(--transition-smooth);
  overflow: hidden;
}

/* Paper Tape Perforated Hole Strip Decorator */
.tape-hole-strip {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 16px;
  background: rgba(235, 230, 220, 0.5);
  border-bottom: 1px dashed rgba(160, 150, 130, 0.4);
  margin: -32px -32px 24px -32px;
  position: relative;
}

.tape-hole-strip.bottom {
  margin: 24px -32px -32px -32px;
  border-bottom: none;
  border-top: 1px dashed rgba(160, 150, 130, 0.4);
}

.hole-row {
  display: flex;
  gap: 8px;
  align-items: center;
}

.hole {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #D8D2C4;
  box-shadow: inset 1px 1px 2px rgba(0,0,0,0.25);
  transition: all 0.3s ease;
  position: relative;
}

/* Hover Effect: Cool Cyan Sweep */
.punched-tape-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--tape-hover-shadow);
  border-color: rgba(0, 245, 212, 0.7);
}

.punched-tape-card:hover .hole {
  background: var(--cyan-glow);
  box-shadow: 0 0 10px var(--cyan-glow), 0 0 20px var(--cyan-beam);
  animation: cyan-pulse-sweep 1.2s ease-in-out infinite alternate;
}

@keyframes cyan-pulse-sweep {
  0% {
    transform: scale(1);
    box-shadow: 0 0 4px var(--cyan-glow);
  }
  100% {
    transform: scale(1.3);
    box-shadow: 0 0 14px var(--cyan-glow), 0 0 24px var(--cyan-beam);
  }
}

/* Header & Navigation Bar */
.site-header {
  position: sticky;
  top: 16px;
  z-index: 100;
  margin-bottom: 32px;
}

.nav-tape-container {
  background: rgba(255, 253, 248, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--paper-border);
  border-radius: var(--radius-pill);
  padding: 10px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.05);
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-dark);
  font-weight: 800;
  font-size: 1.3rem;
}

.logo-tape-icon {
  width: 42px;
  height: 42px;
  background: var(--bg-dark-tape);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cyan-glow);
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  border: 1px solid rgba(0, 245, 212, 0.4);
  box-shadow: 0 0 12px rgba(0, 245, 212, 0.25);
  position: relative;
  overflow: hidden;
}

.logo-tape-icon::after {
  content: '•••';
  letter-spacing: -2px;
  font-size: 0.7rem;
  color: var(--cyan-glow);
  position: absolute;
  bottom: 2px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition-smooth);
  position: relative;
  padding: 6px 0;
}

.nav-links a:hover, .nav-links a.active {
  color: var(--cyan-deep);
}

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

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

/* Action Button */
.cta-tape-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: var(--text-dark);
  color: var(--cyan-glow);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 12px 26px;
  border-radius: var(--radius-pill);
  text-decoration: none;
  border: 1px solid var(--cyan-glow);
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.15), inset 0 0 8px rgba(0, 245, 212, 0.15);
  transition: all 0.3s var(--transition-bounce);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.cta-tape-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 245, 212, 0.3), transparent);
  transition: 0.6s;
}

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

.cta-tape-btn:hover {
  background: #0E161C;
  color: #FFFFFF;
  border-color: var(--cyan-glow);
  box-shadow: 0 8px 25px rgba(0, 245, 212, 0.4);
  transform: translateY(-2px) scale(1.02);
}

.cta-tape-btn.primary-light {
  background: var(--cyan-beam);
  color: #FFFFFF;
  border: none;
  font-family: var(--font-main);
  font-weight: 700;
  box-shadow: 0 6px 20px rgba(6, 182, 212, 0.35);
}

.cta-tape-btn.primary-light:hover {
  background: var(--cyan-deep);
  box-shadow: 0 10px 28px rgba(2, 132, 199, 0.45);
}

/* Mobile Navigation Toggle */
.mobile-nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--paper-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-dark);
  padding: 6px 12px;
}

/* Hero Section */
.hero-section {
  padding: 40px 0 70px;
  position: relative;
}

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

.telemetry-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 18px;
  background: var(--cyan-light-bg);
  border: 1px dashed var(--cyan-beam);
  border-radius: var(--radius-pill);
  color: var(--cyan-deep);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 700;
  margin-bottom: 24px;
}

.telemetry-badge .dot {
  width: 8px;
  height: 8px;
  background: var(--cyan-glow);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--cyan-glow);
  animation: pulse-ring 2s infinite;
}

@keyframes pulse-ring {
  0% { transform: scale(0.95); opacity: 1; }
  50% { transform: scale(1.3); opacity: 0.5; }
  100% { transform: scale(0.95); opacity: 1; }
}

.hero-title {
  font-size: 3.4rem;
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  color: var(--text-dark);
}

.hero-title .highlight {
  color: var(--cyan-deep);
  position: relative;
  display: inline-block;
}

.hero-title .highlight::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 0;
  width: 100%;
  height: 8px;
  background: rgba(0, 245, 212, 0.3);
  z-index: -1;
  border-radius: 4px;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 32px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

/* Live Speed Test Telemetry Ticker */
.telemetry-ticker-box {
  background: var(--bg-dark-tape);
  color: #E2E8F0;
  border-radius: var(--radius-tape);
  padding: 16px 24px;
  border: 1px solid rgba(0, 245, 212, 0.3);
  box-shadow: 0 10px 30px rgba(0,0,0,0.15);
  font-family: var(--font-mono);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.ticker-item {
  display: flex;
  align-items: center;
  gap: 12px;
}

.ticker-label {
  color: #94A3B8;
  font-size: 0.85rem;
}

.ticker-val {
  color: var(--cyan-glow);
  font-weight: 700;
  font-size: 1rem;
}

/* Hero Visual Card */
.hero-tape-visual {
  position: relative;
}

.hero-tape-visual img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-tape);
  border: 1px solid var(--paper-border);
  box-shadow: var(--paper-shadow);
  display: block;
}

.floating-telemetry-pill {
  position: absolute;
  bottom: -20px;
  left: -20px;
  background: var(--bg-dark-tape);
  color: #FFF;
  padding: 12px 24px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--cyan-glow);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  box-shadow: 0 12px 30px rgba(0, 245, 212, 0.25);
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Global Section Styling */
.section {
  padding: 70px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 48px;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--cyan-deep);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 10px;
  display: inline-block;
  background: var(--cyan-light-bg);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  border: 1px dashed var(--paper-border);
}

.section-title {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 14px;
  line-height: 1.25;
}

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

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
}

.feature-tape-card {
  height: 100%;
  display: flex;
  flex-direction: column;
}

.feature-icon-box {
  width: 56px;
  height: 56px;
  background: var(--cyan-light-bg);
  border: 1px solid var(--cyan-beam);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cyan-deep);
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 1.1rem;
  margin-bottom: 20px;
  transition: var(--transition-bounce);
}

.punched-tape-card:hover .feature-icon-box {
  background: var(--cyan-beam);
  color: #FFF;
  transform: scale(1.08);
}

.feature-card-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-dark);
}

.feature-card-desc {
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.7;
}

/* Pricing Grid */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
}

.price-tape-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.price-tape-card.featured {
  border: 2px solid var(--cyan-beam);
  background: #FFFFFF;
}

.featured-ribbon {
  position: absolute;
  top: 14px;
  right: 14px;
  background: var(--cyan-beam);
  color: #FFF;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
}

.plan-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-dark);
}

.plan-price-box {
  margin: 16px 0 24px;
}

.plan-price {
  font-size: 2.8rem;
  font-weight: 900;
  color: var(--cyan-deep);
  font-family: var(--font-mono);
}

.plan-price span {
  font-size: 0.95rem;
  color: var(--text-light);
  font-family: var(--font-main);
  font-weight: 500;
}

.plan-features-list {
  list-style: none;
  margin-bottom: 32px;
  flex-grow: 1;
}

.plan-features-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 12px;
}

.plan-features-list li::before {
  content: '';
  width: 6px;
  height: 10px;
  border-right: 2px solid var(--cyan-deep);
  border-bottom: 2px solid var(--cyan-deep);
  transform: rotate(45deg);
  display: inline-block;
  margin-right: 4px;
  flex-shrink: 0;
}

/* Target Users Grid */
.users-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.user-tape-card {
  text-align: center;
  padding: 28px 20px;
}

/* Tutorials Preview Section */
.tutorials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}

.tutorial-tape-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.tutorial-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--cyan-deep);
  background: var(--cyan-light-bg);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  width: fit-content;
  margin-bottom: 14px;
}

.tutorial-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-dark);
}

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

/* Article List Grid */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px;
}

.article-tape-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.article-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 12px 0;
  line-height: 1.45;
}

.article-title a {
  color: var(--text-dark);
  text-decoration: none;
  transition: color 0.2s ease;
}

.article-title a:hover {
  color: var(--cyan-deep);
}

.article-summary {
  color: var(--text-muted);
  font-size: 0.94rem;
  margin-bottom: 20px;
  flex-grow: 1;
  line-height: 1.65;
}

.article-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--cyan-deep);
  font-weight: 700;
  font-size: 0.9rem;
  text-decoration: none;
  font-family: var(--font-mono);
}

.article-link:hover {
  text-decoration: underline;
}

/* FAQ Accordion */
.faq-tape-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-tape-item {
  border: 1px solid var(--paper-border);
  border-radius: var(--radius-tape);
  background: var(--bg-tape);
  overflow: hidden;
  transition: var(--transition-smooth);
}

.faq-tape-item.active {
  border-color: var(--cyan-beam);
  box-shadow: 0 8px 24px rgba(6, 182, 212, 0.15);
}

.faq-question-btn {
  width: 100%;
  text-align: left;
  padding: 20px 24px;
  background: none;
  border: none;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-dark);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-family: inherit;
}

.faq-arrow {
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--text-dark);
  border-bottom: 2px solid var(--text-dark);
  transform: rotate(45deg);
  transition: transform 0.3s ease;
  margin-right: 6px;
  flex-shrink: 0;
}

.faq-tape-item.active .faq-arrow {
  transform: rotate(-135deg);
  border-color: var(--cyan-beam);
}

.faq-answer-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0, 1, 0, 1), padding 0.35s ease;
  padding: 0 24px;
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.75;
}

.faq-tape-item.active .faq-answer-content {
  max-height: 800px;
  padding: 0 24px 24px;
}

/* Footer Section */
.site-footer {
  background: var(--bg-dark-tape);
  color: #94A3B8;
  padding: 60px 0 30px;
  margin-top: 80px;
  border-top: 2px solid var(--cyan-beam);
  position: relative;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand h3 {
  color: #FFF;
  font-size: 1.4rem;
  margin-bottom: 14px;
}

.footer-brand p {
  font-size: 0.92rem;
  line-height: 1.7;
  max-width: 380px;
}

.footer-col h4 {
  color: #FFF;
  font-size: 1rem;
  margin-bottom: 18px;
  font-family: var(--font-mono);
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  color: #94A3B8;
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

.footer-col ul li a:hover {
  color: var(--cyan-glow);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.88rem;
  font-family: var(--font-mono);
}

/* Article & Legal Detail Layouts */
.article-header {
  padding: 40px 0 24px;
  max-width: 900px;
  margin: 0 auto;
}

.breadcrumb-tape {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 20px;
}

.breadcrumb-tape a {
  color: var(--cyan-deep);
  text-decoration: none;
}

.breadcrumb-tape a:hover {
  text-decoration: underline;
}

.article-wrapper {
  max-width: 900px;
  margin: 0 auto 60px;
}

.article-body-tape {
  background: var(--bg-tape);
  border: 1px solid var(--paper-border);
  border-radius: var(--radius-tape);
  padding: 48px;
  box-shadow: var(--paper-shadow);
}

.article-body-tape h1 {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 18px;
  line-height: 1.3;
}

.article-meta-bar {
  display: flex;
  align-items: center;
  gap: 20px;
  color: var(--text-light);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  padding-bottom: 20px;
  border-bottom: 1px dashed var(--paper-border);
  margin-bottom: 32px;
}

.article-prose {
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--text-dark);
}

.article-prose p {
  margin-bottom: 24px;
}

.article-prose h2 {
  font-size: 1.6rem;
  font-weight: 800;
  margin: 40px 0 18px;
  color: var(--text-dark);
  padding-bottom: 8px;
  border-bottom: 2px solid var(--cyan-light-bg);
}

.article-prose h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin: 30px 0 14px;
  color: var(--text-dark);
}

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

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

.article-prose blockquote {
  background: var(--cyan-light-bg);
  border-left: 4px solid var(--cyan-beam);
  padding: 16px 24px;
  margin: 24px 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--text-muted);
}

.article-prose code {
  font-family: var(--font-mono);
  background: var(--bg-subtle);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
}

/* Related Recommendations & Article FAQ */
.related-box {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px dashed var(--paper-border);
}

.related-box h3 {
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 20px;
}

/* Mobile Responsive Adjustments */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .hero-title {
    font-size: 2.6rem;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-tape);
    flex-direction: column;
    padding: 20px;
    border: 1px solid var(--paper-border);
    border-radius: var(--radius-tape);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    margin-top: 10px;
  }
  .nav-links.show {
    display: flex;
  }
  .mobile-nav-toggle {
    display: block;
  }
  .article-body-tape {
    padding: 24px;
  }
  .hero-title {
    font-size: 2.1rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}