/* ===================================
   百鲤游戏 (HundredCent) — Design System
   Supercell-Inspired Dark Theme
   =================================== */

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

/* --- CSS Variables --- */
:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: rgba(255, 255, 255, 0.04);
  --bg-glass: rgba(255, 255, 255, 0.06);
  --bg-glass-hover: rgba(255, 255, 255, 0.10);

  --text-primary: #f0f0f5;
  --text-secondary: #9898a6;
  --text-muted: #5a5a6e;

  --accent-gold: #f5a623;
  --accent-orange: #ff6b35;
  --accent-blue: #4a9eff;
  --accent-purple: #8b5cf6;
  --accent-gradient: linear-gradient(135deg, #f5a623 0%, #ff6b35 100%);
  --accent-gradient-blue: linear-gradient(135deg, #4a9eff 0%, #8b5cf6 100%);

  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.12);

  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 60px rgba(245, 166, 35, 0.15);
  --shadow-glow-blue: 0 0 60px rgba(74, 158, 255, 0.15);

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  --font-primary: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Inter', 'Noto Sans SC', sans-serif;

  --transition-fast: 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-smooth: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-spring: 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

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

body {
  font-family: var(--font-primary);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: var(--transition-smooth);
}

.nav.scrolled {
  padding: 12px 40px;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border-subtle);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.4rem;
  letter-spacing: -0.02em;
}

.nav-logo .logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 900;
  color: #fff;
  box-shadow: 0 4px 15px rgba(245, 166, 35, 0.3);
}

.logo-img {
  height: 50px;
  width: auto;
  border-radius: 10px;
}

.logo-text {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 2px;
}

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

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

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-gradient);
  transition: var(--transition-smooth);
  border-radius: 1px;
}

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

.nav-cta {
  padding: 10px 24px;
  background: var(--accent-gradient);
  border: none;
  border-radius: var(--radius-sm);
  color: #fff;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition-fast);
  box-shadow: 0 4px 15px rgba(245, 166, 35, 0.25);
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(245, 166, 35, 0.35);
}

/* --- Hero Section --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.7;
  transform: scale(1.05);
  transition: transform 8s ease;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(10, 10, 15, 0.3) 0%,
    rgba(10, 10, 15, 0.5) 50%,
    rgba(10, 10, 15, 1) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  padding: 0 20px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: var(--bg-glass);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-subtle);
  border-radius: 100px;
  font-size: 0.85rem;
  color: var(--accent-gold);
  font-weight: 500;
  margin-bottom: 24px;
  animation: fadeInUp 0.8s ease both;
}

.hero-badge .dot {
  width: 6px;
  height: 6px;
  background: var(--accent-gold);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  animation: fadeInUp 0.8s ease 0.15s both;
}

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

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 40px;
  font-weight: 400;
  line-height: 1.7;
  animation: fadeInUp 0.8s ease 0.3s both;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.45s both;
}

.btn-primary {
  padding: 16px 36px;
  background: var(--accent-gradient);
  border: none;
  border-radius: var(--radius-sm);
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition-fast);
  box-shadow: 0 4px 20px rgba(245, 166, 35, 0.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(245, 166, 35, 0.4);
}

.btn-secondary {
  padding: 16px 36px;
  background: var(--bg-glass);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-secondary:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-hover);
  transform: translateY(-3px);
}

.hero-scroll-hint {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  animation: float 3s ease-in-out infinite;
}

.hero-scroll-hint .mouse {
  width: 24px;
  height: 38px;
  border: 2px solid var(--text-muted);
  border-radius: 12px;
  position: relative;
}

.hero-scroll-hint .mouse::after {
  content: '';
  width: 4px;
  height: 8px;
  background: var(--text-muted);
  border-radius: 2px;
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  animation: scrollDown 2s ease infinite;
}

/* --- Section Base --- */
.section {
  padding: 120px 40px;
  max-width: 1200px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-label {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent-gold);
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

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

.game-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  transition: var(--transition-smooth);
  cursor: pointer;
}

.game-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-card), var(--shadow-glow);
}

.game-card-image {
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.game-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.game-card:hover .game-card-image img {
  transform: scale(1.08);
}

.game-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(10, 10, 15, 0.95) 0%,
    rgba(10, 10, 15, 0.3) 50%,
    transparent 100%
  );
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 32px;
}

.game-card-tag {
  display: inline-flex;
  align-self: flex-start;
  padding: 4px 12px;
  background: var(--accent-gradient);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

.game-card-title {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.game-card-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.game-card-arrow {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 40px;
  height: 40px;
  background: var(--bg-glass);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-subtle);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  opacity: 0;
  transform: translate(-8px, 8px);
  transition: var(--transition-smooth);
}

.game-card:hover .game-card-arrow {
  opacity: 1;
  transform: translate(0, 0);
}

/* --- Stats Section --- */
.stats-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  text-align: center;
}

.stat-item {
  padding: 20px;
}

.stat-number {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  font-weight: 900;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-top: 8px;
  font-weight: 500;
}

/* --- About Section --- */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-text h3 {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}

.about-text p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
  font-size: 1.05rem;
}

.about-visual {
  position: relative;
}

.about-card {
  background: var(--bg-glass);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 40px;
  transition: var(--transition-smooth);
}

.about-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow-blue);
}

.about-card .icon {
  width: 56px;
  height: 56px;
  background: var(--accent-gradient-blue);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
}

.about-card h4 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
}

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

/* --- Culture Grid --- */
.culture-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.culture-card {
  background: var(--bg-glass);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.culture-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent-gradient);
  opacity: 0;
  transition: var(--transition-smooth);
}

.culture-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  background: var(--bg-glass-hover);
}

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

.culture-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.culture-card h4 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.culture-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* --- CTA Section --- */
.cta-section {
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(245, 166, 35, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.cta-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}

.cta-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto 40px;
}

/* --- Footer --- */
.footer {
  padding: 60px 40px 30px;
  border-top: 1px solid var(--border-subtle);
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 60px;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-top: 16px;
  max-width: 300px;
}

.footer-col h5 {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.footer-col a {
  display: block;
  color: var(--text-secondary);
  font-size: 0.9rem;
  padding: 4px 0;
  transition: var(--transition-fast);
}

.footer-col a:hover {
  color: var(--accent-gold);
  transform: translateX(4px);
}

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-socials {
  display: flex;
  gap: 16px;
}

.footer-socials a {
  width: 36px;
  height: 36px;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: var(--transition-fast);
}

.footer-socials a:hover {
  background: var(--accent-gradient);
  border-color: transparent;
  color: #fff;
  transform: translateY(-2px);
}

/* --- Animations --- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

@keyframes float {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-10px); }
}

@keyframes scrollDown {
  0% { opacity: 1; transform: translateX(-50%) translateY(0); }
  100% { opacity: 0; transform: translateX(-50%) translateY(12px); }
}

/* --- Subpage Styles (Jobs & Contact) --- */
.subpage-hero {
  padding: 160px 40px 80px;
  background: linear-gradient(to bottom, rgba(10, 10, 15, 0.9) 0%, var(--bg-primary) 100%), var(--bg-secondary);
  text-align: center;
  border-bottom: 1px solid var(--border-subtle);
}

.subpage-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.subpage-title .highlight {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subpage-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.subpage-content {
  padding: 80px 40px;
  max-width: 1000px;
  margin: 0 auto;
  min-height: 40vh;
}

.job-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.job-item {
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition-smooth);
}

.job-item:hover {
  border-color: var(--border-hover);
  background: var(--bg-glass-hover);
  transform: translateY(-4px);
}

.job-info h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.job-info p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.job-meta {
  display: flex;
  gap: 16px;
  margin-top: 12px;
}

.job-meta span {
  font-size: 0.85rem;
  padding: 4px 12px;
  background: var(--bg-secondary);
  border-radius: 100px;
  color: var(--text-muted);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.contact-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 40px;
  text-align: center;
  transition: var(--transition-smooth);
}

.contact-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-glass-hover);
  transform: translateY(-4px);
}

.contact-card h3 {
  font-size: 1.4rem;
  margin-bottom: 16px;
}

.contact-card p {
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

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

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

  .footer-content {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav {
    padding: 16px 20px;
  }

  .nav-links {
    display: none;
  }

  .section {
    padding: 80px 20px;
  }

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

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

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

  .footer-content {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}