/* ===== Variables ===== */
:root {
  --yellow: #F5C518;
  --yellow-bright: #FFD700;
  --yellow-dark: #D4A017;
  --yellow-glow: rgba(245, 197, 24, 0.4);
  --black: #000000;
  --bg-primary: #0a0a0a;
  --bg-secondary: #141414;
  --bg-card: #1a1a1a;
  --bg-elevated: #222222;
  --text-primary: #ffffff;
  --text-secondary: #b3b3b3;
  --text-muted: #808080;
  --gradient-hero: linear-gradient(180deg, transparent 0%, var(--bg-primary) 100%);
  --gradient-yellow: linear-gradient(135deg, var(--yellow-bright) 0%, var(--yellow-dark) 100%);
  --shadow-glow: 0 0 40px var(--yellow-glow);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --radius: 8px;
  --radius-lg: 12px;
}

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

html {
  scroll-behavior: smooth;
}

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

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

ul {
  list-style: none;
}

img {
  max-width: 100%;
  display: block;
}

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

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
}

.header.scrolled {
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(245, 197, 24, 0.1);
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 900;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.logo-icon {
  color: var(--yellow);
  font-size: 1.5rem;
  filter: drop-shadow(0 0 8px var(--yellow-glow));
}

.logo-text {
  background: var(--gradient-yellow);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  gap: 28px;
  margin-left: auto;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--yellow);
  transition: var(--transition);
}

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

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

.nav-cta {
  padding: 8px 20px;
  background: var(--gradient-yellow);
  color: var(--black);
  font-weight: 700;
  font-size: 0.85rem;
  border-radius: 4px;
  transition: var(--transition);
  flex-shrink: 0;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: var(--transition);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 20%, rgba(245, 197, 24, 0.15) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 20% 80%, rgba(245, 197, 24, 0.08) 0%, transparent 50%),
    linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.hero-particles {
  position: absolute;
  inset: 0;
}

.particle {
  position: absolute;
  width: 2px;
  height: 2px;
  background: var(--yellow);
  border-radius: 50%;
  opacity: 0;
  animation: float-particle 8s infinite;
}

@keyframes float-particle {
  0%, 100% { opacity: 0; transform: translateY(0); }
  10% { opacity: 0.6; }
  90% { opacity: 0.3; }
  100% { opacity: 0; transform: translateY(-100vh); }
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(245, 197, 24, 0.15);
  border: 1px solid rgba(245, 197, 24, 0.3);
  border-radius: 20px;
  font-size: 0.8rem;
  color: var(--yellow);
  font-weight: 500;
  margin-bottom: 24px;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 24px;
}

.hero-title-line {
  display: block;
}

.hero-title-line.accent {
  background: var(--gradient-yellow);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 36px;
  max-width: 560px;
  line-height: 1.8;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 1rem;
  font-weight: 700;
  border-radius: 4px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

.btn-primary {
  background: var(--gradient-yellow);
  color: var(--black);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(245, 197, 24, 0.4);
}

.btn-full {
  width: 100%;
  justify-content: center;
}

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

.stat-num {
  display: block;
  font-size: 2rem;
  font-weight: 900;
  color: var(--yellow);
  line-height: 1;
  margin-bottom: 4px;
}

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

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.75rem;
  z-index: 2;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(180deg, var(--yellow) 0%, transparent 100%);
  animation: scroll-pulse 2s infinite;
}

@keyframes scroll-pulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.8); }
  50% { opacity: 1; transform: scaleY(1); }
}

/* ===== Content Sections ===== */
.content-section {
  padding: 48px 0;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.section-header.centered {
  flex-direction: column;
  text-align: center;
  margin-bottom: 48px;
}

.section-title {
  font-size: 1.5rem;
  font-weight: 700;
}

.section-subtitle {
  color: var(--text-secondary);
  margin-top: 8px;
}

.section-nav {
  display: flex;
  gap: 8px;
}

.scroll-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.scroll-btn:hover {
  background: var(--yellow);
  color: var(--black);
  border-color: var(--yellow);
}

.content-row {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  scroll-behavior: smooth;
  padding-bottom: 8px;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.content-row::-webkit-scrollbar {
  display: none;
}

.content-card {
  flex-shrink: 0;
  cursor: pointer;
}

.featured-card {
  width: 320px;
}

.content-card:not(.featured-card) {
  width: 200px;
}

.card-image {
  position: relative;
  height: 180px;
  border-radius: var(--radius);
  overflow: hidden;
  background:
  linear-gradient(135deg,
    hsl(var(--hue, 45), 60%, 25%) 0%,
    hsl(var(--hue, 45), 40%, 12%) 50%,
    var(--bg-card) 100%);
  transition: var(--transition);
}

.card-image.tall {
  height: 280px;
}

.card-image::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, transparent 40%, rgba(0, 0, 0, 0.9) 100%),
    repeating-linear-gradient(
      45deg,
      transparent,
      transparent 10px,
      rgba(255, 255, 255, 0.02) 10px,
      rgba(255, 255, 255, 0.02) 20px
    );
}

.content-card:hover .card-image {
  transform: scale(1.05);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5), 0 0 20px var(--yellow-glow);
}

.card-overlay {
  position: absolute;
  inset: 0;
  padding: 16px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.card-tag {
  display: inline-block;
  padding: 2px 8px;
  background: var(--yellow);
  color: var(--black);
  font-size: 0.7rem;
  font-weight: 700;
  border-radius: 2px;
  margin-bottom: 8px;
  align-self: flex-start;
}

.card-tag.hot {
  background: var(--gradient-yellow);
}

.card-overlay h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 2px;
}

.card-overlay p {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.card-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--yellow);
  color: var(--black);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

.content-card:hover .card-play {
  opacity: 1;
}

/* ===== Services ===== */
.services {
  padding: 80px 0;
  background: var(--bg-secondary);
}

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

.service-card {
  padding: 32px 24px;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: var(--transition);
}

.service-card:hover {
  border-color: rgba(245, 197, 24, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.service-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius);
  background: rgba(245, 197, 24, 0.1);
  color: var(--yellow);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.service-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.service-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== About ===== */
.about {
  padding: 100px 0;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
  align-items: center;
}

.about-frame {
  position: relative;
  aspect-ratio: 1;
  max-width: 400px;
  margin: 0 auto;
}

.frame-inner {
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 2px solid rgba(245, 197, 24, 0.2);
  overflow: hidden;
}

.frame-glow {
  position: absolute;
  inset: -50%;
  background: radial-gradient(circle, var(--yellow-glow) 0%, transparent 70%);
  animation: glow-rotate 10s linear infinite;
}

@keyframes glow-rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.frame-content {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.frame-star {
  font-size: 3rem;
  color: var(--yellow);
  filter: drop-shadow(0 0 20px var(--yellow-glow));
}

.frame-text {
  font-size: 2rem;
  font-weight: 900;
  letter-spacing: 0.2em;
  background: var(--gradient-yellow);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.frame-sub {
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  color: var(--text-muted);
}

.about-lead {
  font-size: 1.1rem;
  color: var(--text-primary);
  margin-bottom: 16px;
  font-weight: 500;
}

.about-content p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.8;
}

.about-highlights {
  margin-top: 32px;
}

.about-highlights li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.highlight-icon {
  color: var(--yellow);
  font-size: 0.8rem;
}

/* ===== Contact ===== */
.contact {
  padding: 80px 0;
  background: var(--bg-secondary);
}

.contact-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  padding: 48px;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(245, 197, 24, 0.1);
}

.contact-info p {
  color: var(--text-secondary);
  margin-top: 16px;
  line-height: 1.8;
}

.contact-details {
  margin-top: 32px;
}

.contact-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.contact-value {
  font-size: 1rem;
  font-weight: 500;
}

.contact-value.link {
  color: var(--yellow);
  transition: var(--transition);
}

.contact-value.link:hover {
  text-shadow: 0 0 12px var(--yellow-glow);
}

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

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  background: var(--bg-primary);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--yellow);
  box-shadow: 0 0 0 3px rgba(245, 197, 24, 0.1);
}

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

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

/* ===== Footer ===== */
.footer {
  padding: 64px 0 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

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

.footer-brand p {
  color: var(--text-muted);
  margin-top: 12px;
  font-size: 0.9rem;
}

.footer-links h4 {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-secondary);
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: var(--transition);
}

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

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  text-align: center;
}

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

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

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

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--bg-secondary);
    flex-direction: column;
    padding: 80px 32px 32px;
    gap: 24px;
    transition: var(--transition);
    border-left: 1px solid rgba(245, 197, 24, 0.1);
  }

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

  .nav-links a {
    font-size: 1.1rem;
  }

  .nav-cta {
    display: none;
  }

  .menu-toggle {
    display: flex;
    margin-left: auto;
  }

  .menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

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

  .menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .hero-stats {
    gap: 24px;
  }

  .stat-num {
    font-size: 1.5rem;
  }

  .featured-card {
    width: 260px;
  }

  .content-card:not(.featured-card) {
    width: 160px;
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero-scroll {
    display: none;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
  }

  .btn {
    justify-content: center;
  }

  .contact-card {
    padding: 24px;
  }
}