:root {
  --primary: #1300a8;
  --primary-light: #1e4cff;
  --accent: #ff5b00;
  --accent-light: #ffb15e;
  --dark: #0a0e27;
  --dark-light: #151a3f;
  --light: #f8f9fc;
  --text-dark: #1a1a2e;
  --text-light: #ffffff;
  --border: rgba(255, 255, 255, 0.1);
  --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 16px 48px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 24px 64px rgba(0, 0, 0, 0.2);
  --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

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

/* Entrance Splash */
.entrance-splash {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: linear-gradient(135deg, var(--primary) 0%, var(--dark) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 32px;
  opacity: 1;
  visibility: visible;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

.entrance-splash.hidden {
  opacity: 0;
  visibility: hidden;
}

.splash-logo {
  width: 220px;
  height: auto;
  animation: splash-zoom 0.8s ease-out;
}

.splash-logo img {
  width: 100%;
  height: auto;
}

.splash-loading {
  display: flex;
  gap: 12px;
}

.splash-loading span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--text-light);
  animation: splash-bounce 1.4s infinite;
}

.splash-loading span:nth-child(2) {
  animation-delay: 0.2s;
}

.splash-loading span:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes splash-zoom {
  from {
    opacity: 0;
    transform: scale(0.8);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes splash-bounce {
  0%, 100% {
    opacity: 0.4;
    transform: translateY(0);
  }
  50% {
    opacity: 1;
    transform: translateY(-8px);
  }
}

/* Navigation */
.top-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition: var(--transition);
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.nav-logo {
  display: block;
  width: 120px;
  height: auto;
  flex-shrink: 0;
}

.nav-logo img {
  width: 100%;
  height: auto;
  object-fit: contain;
}

.nav-menu {
  display: flex;
  gap: 28px;
  flex: 1;
  justify-content: center;
}

.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-light);
  text-decoration: none;
  position: relative;
  transition: color 0.25s ease;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s ease;
}

.nav-link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-scrollbar {
  width: 100px;
  height: 3px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 2px;
  overflow: hidden;
  flex-shrink: 0;
}

.nav-scrollbar i {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 2px;
  transition: width 0.2s ease;
}

/* Main Content */
.page-wrapper {
  position: relative;
  z-index: 1;
  padding-top: 60px;
}

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

/* Hero Section */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.hero-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
  animation: fade-in-up 0.6s ease-out;
}

.hero-title {
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 800;
  line-height: 1.1;
  color: var(--text-dark);
  margin-bottom: 24px;
  animation: fade-in-up 0.6s ease-out 0.1s backwards, gradient-shift 4s ease-in-out infinite;
  background: linear-gradient(
    135deg,
    var(--primary) 0%,
    var(--primary-light) 25%,
    var(--accent) 50%,
    var(--primary-light) 75%,
    var(--primary) 100%
  );
  background-size: 300% 300%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 16px;
  color: #666;
  line-height: 1.8;
  margin-bottom: 32px;
  max-width: 480px;
  animation: fade-in-up 0.6s ease-out 0.2s backwards;
}

.hero-cta {
  display: flex;
  gap: 16px;
  margin-bottom: 48px;
  animation: fade-in-up 0.6s ease-out 0.3s backwards;
}

.cta-btn {
  padding: 14px 32px;
  border: none;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  display: inline-block;
  text-align: center;
}

.cta-btn.primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: white;
  box-shadow: 0 8px 24px rgba(19, 0, 168, 0.3);
}

.cta-btn.primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(19, 0, 168, 0.4);
}

.cta-btn.secondary {
  background: white;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.cta-btn.secondary:hover {
  background: var(--primary);
  color: white;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  animation: fade-in-up 0.6s ease-out 0.4s backwards;
}

.stat {
  text-align: center;
}

.stat strong {
  display: block;
  font-size: 28px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 4px;
}

.stat span {
  font-size: 12px;
  color: #999;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.hero-visual {
  position: relative;
  height: 500px;
  overflow: hidden;
  animation: fade-in 0.8s ease-out 0.2s backwards;
}

.particle-layer {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 2;
}

.particle {
  position: absolute;
  left: 0;
  bottom: -24px;
  width: var(--p-size, 8px);
  height: var(--p-size, 8px);
  border-radius: 50%;
  background: var(--p-color, var(--accent));
  opacity: 0;
  filter: saturate(1.12);
  box-shadow: 0 0 10px color-mix(in srgb, var(--p-color, var(--accent)) 60%, transparent);
  animation: particle-rise var(--p-duration, 5.6s) linear forwards;
}

.visual-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
}

.blob-1 {
  width: 300px;
  height: 300px;
  background: linear-gradient(135deg, var(--primary), transparent);
  top: 50px;
  right: 100px;
  opacity: 0.6;
  animation: blob-float 6s ease-in-out infinite;
}

.blob-2 {
  width: 250px;
  height: 250px;
  background: linear-gradient(135deg, var(--accent), transparent);
  bottom: 100px;
  right: -50px;
  opacity: 0.5;
  animation: blob-float 7s ease-in-out infinite reverse;
}

.visual-pattern {
  position: absolute;
  inset: 0;
  opacity: 0.4;
  z-index: 1;
}

@keyframes blob-float {
  0%, 100% {
    transform: translateY(0) scale(1);
  }
  50% {
    transform: translateY(-30px) scale(1.05);
  }
}

@keyframes particle-rise {
  0% {
    opacity: 0;
    transform: translate3d(0, 0, 0) scale(0.7);
  }
  12% {
    opacity: 0.95;
  }
  100% {
    opacity: 0;
    transform: translate3d(var(--p-drift, 0px), calc(-1 * var(--p-rise, 560px)), 0) scale(1.18);
  }
}

@keyframes gradient-shift {
  0% {
    background-position: 0% 50%;
  }
  25% {
    background-position: 50% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  75% {
    background-position: 50% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* Section Headers */
.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 16px;
}

.section-desc {
  font-size: 16px;
  color: #666;
  max-width: 600px;
  margin: 0 auto;
}

/* Services Section */
.services-section {
  padding: 100px 0;
  background: linear-gradient(180deg, rgba(19, 0, 168, 0.03) 0%, rgba(255, 91, 0, 0.03) 100%);
  border-radius: 24px;
  margin: 40px 0;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.service-box {
  padding: 32px 24px;
  background: white;
  border: 1px solid rgba(0, 0, 0, 0.05);
  border-radius: 16px;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
}

.service-box:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.service-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  padding: 12px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(19, 0, 168, 0.1), rgba(255, 91, 0, 0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  transition: var(--transition);
}

.service-box:hover .service-icon {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white;
  transform: rotate(10deg) scale(1.1);
}

.service-icon svg {
  width: 100%;
  height: 100%;
}

.service-box h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 12px;
}

.service-box p {
  font-size: 14px;
  color: #999;
  line-height: 1.6;
}

/* About Section */
.about-section {
  padding: 100px 0;
}

.about-content {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-highlights {
  display: grid;
  gap: 24px;
  margin-bottom: 32px;
}

.highlight-item {
  padding: 20px;
  background: linear-gradient(135deg, rgba(19, 0, 168, 0.05), rgba(255, 91, 0, 0.05));
  border-left: 4px solid var(--primary);
  border-radius: 8px;
  transition: var(--transition);
}

.highlight-item:hover {
  transform: translateX(8px);
  background: linear-gradient(135deg, rgba(19, 0, 168, 0.1), rgba(255, 91, 0, 0.1));
}

.highlight-item strong {
  display: block;
  color: var(--primary);
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}

.highlight-item span {
  display: block;
  color: var(--text-dark);
  font-size: 16px;
  line-height: 1.6;
}

.about-body {
  font-size: 16px;
  color: #666;
  line-height: 1.8;
  margin-bottom: 20px;
}

.about-visual {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.visual-card {
  padding: 32px;
  border-radius: 16px;
  color: white;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}

.visual-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 100% 100%, rgba(255, 255, 255, 0.1), transparent);
  pointer-events: none;
}

.card-1 {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
}

.card-2 {
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
}

.card-3 {
  background: linear-gradient(135deg, #667eea, #764ba2);
}

.visual-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-tag {
  font-size: 12px;
  opacity: 0.8;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
  font-weight: 600;
}

.card-number {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 8px;
}

.visual-card p {
  font-size: 14px;
  opacity: 0.9;
}

/* Features Section */
.features-section {
  padding: 100px 0;
  background: linear-gradient(180deg, rgba(19, 0, 168, 0.02) 0%, rgba(255, 91, 0, 0.02) 100%);
  border-radius: 24px;
  margin: 40px 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.feature-card {
  padding: 28px;
  background: white;
  border: 1px solid rgba(0, 0, 0, 0.05);
  border-radius: 16px;
  transition: var(--transition);
}

.feature-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}

.feature-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 20px;
}

.feature-head h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-dark);
}

.feature-tag {
  font-size: 11px;
  padding: 4px 8px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white;
  border-radius: 4px;
  font-weight: 600;
}

.feature-card ul {
  list-style: none;
}

.feature-card li {
  font-size: 14px;
  color: #666;
  padding: 8px 0;
  line-height: 1.6;
  padding-left: 16px;
  position: relative;
}

.feature-card li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: bold;
}

/* Culture Section */
.culture-section {
  padding: 100px 0;
}

.culture-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 60px;
}

.culture-card {
  padding: 40px;
  background: linear-gradient(135deg, rgba(19, 0, 168, 0.05), rgba(255, 91, 0, 0.05));
  border: 1px solid rgba(19, 0, 168, 0.1);
  border-radius: 16px;
  text-align: center;
  transition: var(--transition);
}

.culture-card:hover {
  transform: translateY(-4px);
  background: linear-gradient(135deg, rgba(19, 0, 168, 0.1), rgba(255, 91, 0, 0.1));
  box-shadow: var(--shadow-md);
}

.culture-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.culture-content {
  font-size: 15px;
  color: var(--text-dark);
  line-height: 1.8;
  font-weight: 500;
}

.closing-banner {
  padding: 80px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--dark) 100%);
  border-radius: 24px;
  color: white;
  text-align: center;
  margin-top: 60px;
}

.closing-banner h2 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  margin-bottom: 32px;
  line-height: 1.3;
}

/* Responsive */
@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-visual {
    height: 400px;
  }

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

  .about-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .culture-grid {
    grid-template-columns: 1fr;
  }

  .nav-container {
    gap: 16px;
  }

  .nav-menu {
    gap: 16px;
  }

  .nav-logo {
    width: 100px;
  }
}

@media (max-width: 640px) {
  .nav-container {
    padding: 12px 16px;
    flex-wrap: wrap;
  }

  .nav-menu {
    order: 3;
    width: 100%;
    gap: 12px;
  }

  .nav-link {
    font-size: 13px;
    flex: 1;
    text-align: center;
  }

  .nav-scrollbar {
    display: none;
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .stat strong {
    font-size: 24px;
  }

  .services-grid,
  .features-grid {
    grid-template-columns: 1fr;
  }

  .closing-banner {
    padding: 40px;
  }

  .closing-banner h2 {
    font-size: 1.8rem;
  }

  .hero-section {
    padding: 40px 0;
    min-height: auto;
  }

  .services-section,
  .features-section,
  .about-section,
  .culture-section {
    padding: 60px 0;
  }
}