:root {
  --bg: #03050a;
  --bg-2: #070b14;
  --text: #e8ecf3;
  --text-muted: #94a3b8;
  --primary: #0066ff;
  --accent: #00f0ff;
  --glass: rgba(255, 255, 255, 0.04);
  --glass-border: rgba(255, 255, 255, 0.08);
  --radius: 16px;
}

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

html {
  scroll-behavior: smooth;
}

@font-face {
  font-family: 'Orbitron';
  src: url('../fonts/Orbitron-Bold.ttf') format('truetype');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Shrikhand';
  src: url('../fonts/Shrikhand-Regular.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

body {
  font-family: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
}

.container {
  width: min(1200px, 92%);
  margin-inline: auto;
}

/* Brand typography */
.brand {
  font-family: 'Orbitron', 'Noto Sans SC', sans-serif;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.brand-blue {
  color: var(--accent);
}

/* Background effects */
.bg-aurora {
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(circle at 20% 20%, rgba(0, 102, 255, 0.16), transparent 35%),
    radial-gradient(circle at 80% 30%, rgba(0, 240, 255, 0.10), transparent 30%),
    radial-gradient(circle at 50% 90%, rgba(0, 102, 255, 0.13), transparent 40%);
  filter: blur(60px);
  animation: aurora 18s ease-in-out infinite alternate;
}

@keyframes aurora {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-3%, 2%) scale(1.05); }
}

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,1) 0%, rgba(0,0,0,0) 90%);
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 0;
  transition: background 0.3s, backdrop-filter 0.3s, box-shadow 0.3s;
}

.site-header.scrolled {
  background: rgba(3, 5, 10, 0.85);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--glass-border);
}

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

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.25rem;
}

.logo-mark {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: #0a0a0a;
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #fff;
  font-weight: 800;
  font-size: 1.1rem;
  overflow: hidden;
}

.logo-mark-svg {
  width: 24px;
  height: 17px;
  overflow: visible;
  display: block;
}

.logo-mark-svg .logo-group {
  animation: none;
}

.logo-mark-svg .logo-dot-ripple {
  display: none;
}

.logo-mark-svg .logo-dot {
  animation: logoDotPulseSmall 2.5s ease-in-out infinite;
}

@keyframes logoDotPulseSmall {
  0%, 100% {
    transform: scale(1);
    filter: drop-shadow(0 0 2px rgba(0, 240, 255, 0.6));
  }
  50% {
    transform: scale(1.12);
    filter: drop-shadow(0 0 6px rgba(0, 240, 255, 0.9));
  }
}

.logo-mark-svg .logo-h {
  animation: hGlowSmall 3s ease-in-out infinite;
}

@keyframes hGlowSmall {
  0%, 100% { filter: drop-shadow(0 0 2px rgba(255, 255, 255, 0.4)); }
  50% { filter: drop-shadow(0 0 6px rgba(255, 255, 255, 0.8)); }
}

.logo-mark-svg .logo-bar,
.logo-mark-svg .logo-rung {
  animation: none;
}

.logo-accent {
  margin-left: 6px;
  color: var(--accent);
  font-weight: 500;
}

.main-nav {
  display: flex;
  gap: 32px;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.main-nav a {
  transition: color 0.2s;
}

.main-nav a:hover {
  color: var(--text);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  border: 0;
  cursor: pointer;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #004ecc);
  color: #fff;
  box-shadow: 0 8px 24px rgba(0, 102, 255, 0.35);
}

.btn-primary:hover {
  box-shadow: 0 10px 30px rgba(0, 102, 255, 0.45);
}

.btn-outline {
  background: transparent;
  border-color: var(--glass-border);
  color: var(--text);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-block {
  width: 100%;
}

/* Hero */
.hero {
  padding: 150px 0 100px;
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 24px;
}

.gradient-text {
  display: block;
  background: linear-gradient(90deg, var(--accent), var(--primary));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-desc {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 560px;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 48px;
}

.hero-stats {
  display: flex;
  gap: 40px;
}

.stat {
  display: flex;
  flex-direction: column;
}

.stat strong {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.stat span {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 6px;
}

/* Hero visual */
.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-showcase {
  position: relative;
  width: 320px;
  height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: visible;
}

.showcase-aura {
  position: absolute;
  inset: -15%;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 50%, rgba(0, 102, 255, 0.22), rgba(0, 240, 255, 0.08) 45%, transparent 70%);
  filter: blur(40px);
  animation: aura-pulse 4s ease-in-out infinite;
  z-index: 0;
  pointer-events: none;
}

@keyframes aura-pulse {
  0%, 100% { transform: scale(1); opacity: 0.75; }
  50% { transform: scale(1.25); opacity: 1; }
}

.showcase-particles {
  position: absolute;
  inset: -25%;
  z-index: 0;
  pointer-events: none;
}

.showcase-particles span {
  position: absolute;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
  opacity: 0;
}

.showcase-particles span:nth-child(1) { top: 20%; left: 15%; animation: particle-rise 3.5s ease-in-out infinite; }
.showcase-particles span:nth-child(2) { top: 70%; left: 20%; animation: particle-rise 4.5s ease-in-out infinite 1s; }
.showcase-particles span:nth-child(3) { top: 35%; right: 18%; animation: particle-rise 4s ease-in-out infinite 0.5s; }
.showcase-particles span:nth-child(4) { top: 80%; right: 22%; animation: particle-rise 5s ease-in-out infinite 1.5s; }
.showcase-particles span:nth-child(5) { top: 45%; left: 10%; animation: particle-rise 5.5s ease-in-out infinite 2s; background: #fff; box-shadow: 0 0 12px #fff; }
.showcase-particles span:nth-child(6) { top: 15%; right: 12%; animation: particle-rise 3.8s ease-in-out infinite 0.8s; background: var(--primary); box-shadow: 0 0 12px var(--primary); }
.showcase-particles span:nth-child(7) { top: 60%; left: 8%; animation: particle-rise 4.5s ease-in-out infinite 1.2s; }
.showcase-particles span:nth-child(8) { top: 25%; left: 75%; animation: particle-rise 4s ease-in-out infinite 2.2s; }

@keyframes particle-rise {
  0% { transform: translateY(20px); opacity: 0; }
  20% { opacity: 1; }
  80% { opacity: 0.6; }
  100% { transform: translateY(-70px); opacity: 0; }
}

.showcase-logo {
  position: relative;
  z-index: 2;
  width: 280px;
  height: 201px;
  overflow: visible;
  filter: drop-shadow(0 0 24px rgba(0, 102, 255, 0.4));
  transition: transform 0.4s ease;
}

.showcase-logo:hover {
  transform: scale(1.05) rotate(-1deg);
}

/* Sections */
section {
  padding: 100px 0;
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 64px;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  margin-bottom: 16px;
}

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

/* Modules */
.modules {
  background: linear-gradient(to bottom, transparent, rgba(0, 102, 255, 0.03), transparent);
}

.module-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.module-card {
  padding: 28px;
  border-radius: var(--radius);
  background: var(--glass);
  border: 1px solid var(--glass-border);
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.module-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 240, 255, 0.25);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
}

.module-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(0, 102, 255, 0.12);
  color: var(--accent);
  display: grid;
  place-items: center;
  margin-bottom: 18px;
}

.module-icon svg {
  width: 26px;
  height: 26px;
}

.module-card h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
}

.module-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Advantages */
.advantages {
  background: var(--bg-2);
}

.advantage-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.advantage-item {
  padding: 32px;
  border-radius: var(--radius);
  background: var(--glass);
  border: 1px solid var(--glass-border);
  position: relative;
  overflow: hidden;
}

.advantage-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(to bottom, var(--accent), var(--primary));
}

.advantage-num {
  position: absolute;
  top: 20px;
  right: 24px;
  font-size: 3rem;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.04);
  line-height: 1;
}

.advantage-item h3 {
  font-size: 1.2rem;
  margin-bottom: 12px;
}

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

/* Value */
.value-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.value-card {
  padding: 32px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.08), rgba(0, 240, 255, 0.03));
  border: 1px solid var(--glass-border);
}

.value-card h3 {
  font-size: 1.25rem;
  margin-bottom: 14px;
  color: var(--accent);
}

.value-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Contact */
.contact {
  background: var(--bg-2);
}

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.contact-info .section-head {
  text-align: left;
  margin: 0 0 32px;
}

.contact-items {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.contact-item {
  display: flex;
  flex-direction: column;
  padding: 18px 22px;
  border-radius: 12px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  transition: border-color 0.2s;
}

.contact-item:hover {
  border-color: var(--accent);
}

.contact-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.contact-item strong {
  font-size: 1.1rem;
  font-weight: 600;
}

.contact-form {
  padding: 32px;
  border-radius: var(--radius);
  background: var(--glass);
  border: 1px solid var(--glass-border);
}

.contact-form form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 14px 16px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--glass-border);
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--accent);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: var(--text-muted);
}

.form-status {
  margin: 0;
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 0.9rem;
  text-align: center;
}

.form-status--success {
  background: rgba(0, 240, 255, 0.08);
  color: var(--accent);
  border: 1px solid rgba(0, 240, 255, 0.2);
}

.form-status--error {
  background: rgba(239, 68, 68, 0.08);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.2);
}

/* Footer */
.site-footer {
  padding: 40px 0;
  border-top: 1px solid var(--glass-border);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

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

.footer-links {
  display: flex;
  gap: 24px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-links a {
  display: inline-flex;
  align-items: center;
}

.beian-icon {
  width: 16px;
  height: 16px;
  margin-right: 6px;
  vertical-align: middle;
}

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

.copyright {
  width: 100%;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 8px;
}

/* Reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.delay-1 {
  transition-delay: 0.15s;
}

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

  .hero-desc {
    margin-inline: auto;
  }

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

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

  .hero-visual {
    order: -1;
  }

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

  .contact-inner {
    grid-template-columns: 1fr;
  }

  .contact-info .section-head {
    text-align: center;
  }
}

@media (max-width: 640px) {
  .main-nav {
    position: fixed;
    top: 70px;
    right: 5%;
    left: 5%;
    flex-direction: column;
    gap: 0;
    background: rgba(3, 5, 10, 0.95);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 12px;
    transform: translateY(-10px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s, transform 0.3s;
  }

  .main-nav.open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .main-nav a {
    padding: 12px 16px;
    border-radius: 10px;
  }

  .main-nav a:hover {
    background: var(--glass);
  }

  .nav-toggle {
    display: flex;
  }

  .hero {
    padding: 130px 0 80px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .hero-stats {
    gap: 24px;
  }

  .module-grid,
  .advantage-list,
  .value-grid,
  .form-row {
    grid-template-columns: 1fr;
  }

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

/* Scroll progress bar */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  z-index: 101;
  background: linear-gradient(90deg, var(--accent), var(--primary));
  box-shadow: 0 0 12px var(--accent);
}

/* Particle canvas overlay */
.particle-canvas {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

/* Hero typing */
.hero-typing {
  min-height: 1.4em;
  margin-bottom: 20px;
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.05em;
}

.typing-cursor {
  display: inline-block;
  width: 3px;
  height: 1em;
  background: var(--accent);
  margin-left: 4px;
  vertical-align: middle;
  animation: blink 0.8s steps(1) infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* Enhanced aurora */
.bg-aurora {
  animation: aurora 12s ease-in-out infinite alternate;
}

/* Glowing badge */
.hero-badge {
  position: relative;
  overflow: hidden;
  animation: pulse-glow 3s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 16px rgba(0, 240, 255, 0.15); }
  50% { box-shadow: 0 0 28px rgba(0, 102, 255, 0.35); }
}

@keyframes border-flow {
  0% { background-position: 0% 50%; }
  100% { background-position: 200% 50%; }
}

/* Animated gradient border on cards */
.module-card,
.advantage-item,
.value-card,
.contact-form {
  position: relative;
  overflow: hidden;
}

.module-card::after,
.advantage-item::after,
.value-card::after,
.contact-form::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(120deg, transparent 30%, rgba(0, 240, 255, 0.4) 50%, transparent 70%);
  background-size: 200% 200%;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.4s;
  animation: gradient-rotate 4s linear infinite;
  pointer-events: none;
}

.module-card:hover::after,
.advantage-item:hover::after,
.value-card:hover::after,
.contact-form:hover::after {
  opacity: 1;
}

@keyframes gradient-rotate {
  0% { background-position: 0% 50%; }
  100% { background-position: 200% 50%; }
}

/* Enhanced buttons glow */
.btn-primary {
  position: relative;
  overflow: hidden;
}

/* Stronger section titles */
.section-title {
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--primary));
  border-radius: 3px;
}

/* Contact item glow */
.contact-item {
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.contact-item:hover {
  transform: translateX(6px);
  box-shadow: 0 8px 24px rgba(0, 102, 255, 0.15);
}

/* Footer link glow */
.footer-links a {
  transition: color 0.2s, text-shadow 0.2s;
}

.footer-links a:hover {
  text-shadow: 0 0 8px rgba(0, 240, 255, 0.5);
}

/* Reveal with stagger */
.reveal {
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

/* Mobile adjustments */
@media (max-width: 640px) {
  .particle-canvas {
    display: none;
  }

  .bg-aurora {
    opacity: 0.5;
    filter: blur(40px);
  }

  .bg-grid {
    background-size: 80px 80px;
  }

  .logo-showcase {
    width: 260px;
    height: 260px;
  }

  .showcase-logo {
    width: 220px;
    height: 158px;
  }

  .showcase-aura,
  .showcase-particles {
    display: none;
  }

  .logo-group {
    animation: logoFloat 6s ease-in-out infinite;
  }

  @keyframes logoFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
  }

  .logo-dot {
    animation: logoDotPulse 2.5s ease-in-out infinite;
  }

  @keyframes logoDotPulse {
    0%, 100% {
      transform: scale(1);
      filter: drop-shadow(0 0 4px rgba(0, 240, 255, 0.5));
    }
    50% {
      transform: scale(1.1);
      filter: drop-shadow(0 0 10px rgba(0, 240, 255, 0.8));
    }
  }

  .logo-dot-ripple {
    display: none;
  }

  .logo-h {
    animation: hGlow 4s ease-in-out infinite;
  }

  @keyframes hGlow {
    0%, 100% { filter: drop-shadow(0 0 4px rgba(255, 255, 255, 0.3)); }
    50% { filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.6)); }
  }

  .logo-bar,
  .logo-rung {
    animation: none;
  }

  .hero-typing {
    font-size: 1.1rem;
  }

  .module-card::after,
  .advantage-item::after,
  .value-card::after,
  .contact-form::after {
    animation: none;
  }
}

/* Logo-specific SVG animations */
.logo-group {
  transform-origin: center;
  transition: transform 0.4s ease;
  animation: logoFloat 5s ease-in-out infinite;
}

@keyframes logoFloat {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-12px) rotate(1deg); }
}

.showcase-logo:hover .logo-group {
  animation-play-state: paused;
  transform: scale(1.08) rotate(-2deg);
}

/* Blue dot: strong heartbeat + ripple */
.logo-dot {
  transform-origin: 505px 345px;
  animation: logoDotPulse 1.6s ease-in-out infinite;
}

.logo-dot-ripple {
  transform-origin: 505px 345px;
  animation: logoDotRipple 1.6s ease-out infinite;
}

@keyframes logoDotPulse {
  0%, 100% {
    transform: scale(1);
    filter: drop-shadow(0 0 8px rgba(0, 240, 255, 0.6));
  }
  40% {
    transform: scale(1.28);
    filter: drop-shadow(0 0 32px rgba(0, 240, 255, 1)) drop-shadow(0 0 56px rgba(0, 240, 255, 0.5));
  }
  60% {
    transform: scale(1.12);
    filter: drop-shadow(0 0 20px rgba(0, 240, 255, 0.85));
  }
}

@keyframes logoDotRipple {
  0% { transform: scale(1); opacity: 0.65; filter: drop-shadow(0 0 8px rgba(0, 240, 255, 0.6)); }
  100% { transform: scale(3.2); opacity: 0; filter: drop-shadow(0 0 0 rgba(0, 240, 255, 0)); }
}

/* H letter: strong glow breathe */
.logo-h {
  animation: hGlow 2.4s ease-in-out infinite;
}

@keyframes hGlow {
  0%, 100% { filter: drop-shadow(0 0 8px rgba(255, 255, 255, 0.35)); }
  50% { filter: drop-shadow(0 0 28px rgba(255, 255, 255, 0.9)) drop-shadow(0 0 48px rgba(0, 240, 255, 0.25)); }
}

/* Slanted blue bars: strong energy shimmer */
.logo-bar {
  animation: barShimmer 2.6s ease-in-out infinite;
}

.logo-bar-left {
  transform-origin: 135px 172px;
  animation-delay: 0s;
}

.logo-bar-right {
  transform-origin: 363px 172px;
  animation-delay: 1.3s;
}

@keyframes barShimmer {
  0%, 100% {
    fill: rgb(0, 96, 157);
    filter: drop-shadow(0 0 6px rgba(0, 102, 255, 0.4));
  }
  50% {
    fill: rgb(0, 170, 220);
    filter: drop-shadow(0 0 26px rgba(0, 240, 255, 0.85)) drop-shadow(0 0 44px rgba(0, 102, 255, 0.35));
  }
}

/* Ladder rungs: bright sequential light-up from bottom to top */
.logo-rung {
  animation: rungClimb 1.8s ease-in-out infinite;
}

@keyframes rungClimb {
  0%, 100% {
    fill-opacity: 0.55;
    filter: drop-shadow(0 0 3px rgba(255, 255, 255, 0.2));
  }
  40% {
    fill-opacity: 1;
    fill: rgb(220, 245, 255);
    filter: drop-shadow(0 0 16px rgba(255, 255, 255, 1)) drop-shadow(0 0 28px rgba(0, 240, 255, 0.55));
  }
  70% {
    fill-opacity: 0.8;
    fill: rgb(255, 255, 255);
    filter: drop-shadow(0 0 8px rgba(255, 255, 255, 0.55));
  }
}