/* ============================================================
   线上德州网丨HHpoker俱乐部 —— 赛博朋克霓虹风
   Cyberpunk Neon Theme — Poker/Gaming Landing Page
   ============================================================ */

/* --- CSS Variables / Design Tokens --- */
:root {
  /* Backgrounds */
  --bg-deep: #0a0a0f;
  --bg-card: #0d0d1a;
  --bg-elevated: #111122;
  --bg-overlay: rgba(5, 5, 15, 0.85);

  /* Neon Colors */
  --neon-pink: #f43f5e;
  --neon-pink-glow: rgba(244, 63, 94, 0.5);
  --neon-pink-dim: rgba(244, 63, 94, 0.2);
  --neon-cyan: #22d3ee;
  --neon-cyan-glow: rgba(34, 211, 238, 0.5);
  --neon-cyan-dim: rgba(34, 211, 238, 0.15);
  --neon-purple: #a855f7;
  --neon-purple-glow: rgba(168, 85, 247, 0.45);
  --neon-green: #10b981;
  --neon-gold: #fbbf24;
  --neon-gold-glow: rgba(251, 191, 36, 0.5);

  /* Text */
  --text-primary: #e8e8f0;
  --text-secondary: #9999aa;
  --text-muted: #666680;

  /* Borders */
  --border-dim: rgba(255, 255, 255, 0.06);
  --border-neon-pink: rgba(244, 63, 94, 0.4);
  --border-neon-cyan: rgba(34, 211, 238, 0.4);

  /* Spacing */
  --section-pad: 100px 0;
  --container-max: 1200px;

  /* Transitions */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-back: cubic-bezier(0.34, 1.56, 0.64, 1);
  --transition-fast: 0.2s ease;
  --transition-base: 0.35s var(--ease-out-expo);

  /* Font */
  --font-mono: 'Courier New', 'Source Code Pro', monospace;
  --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  min-height: 100vh;
}

/* Scanline overlay for cyberpunk feel (subtle) */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.03) 2px,
    rgba(0, 0, 0, 0.03) 4px
  );
  opacity: 0.5;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Section Titles --- */
.section-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--neon-cyan);
  border: 1px solid var(--border-neon-cyan);
  padding: 6px 16px;
  border-radius: 2px;
  margin-bottom: 16px;
  text-shadow: 0 0 12px var(--neon-cyan-glow);
  box-shadow: 0 0 10px var(--neon-cyan-dim), inset 0 0 10px var(--neon-cyan-dim);
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: 0.02em;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--neon-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 680px;
  margin: 0 auto 48px;
  line-height: 1.8;
}

.text-center { text-align: center; }

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition-base);
  border-bottom: 1px solid transparent;
}

.nav.scrolled {
  background: var(--bg-overlay);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom-color: var(--border-dim);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: 0.04em;
}

.nav-logo .logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--neon-pink), var(--neon-cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: 0 0 20px var(--neon-pink-glow), 0 0 40px var(--neon-cyan-dim);
}

.nav-logo-text {
  background: linear-gradient(135deg, var(--neon-pink), var(--neon-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  position: relative;
  transition: color var(--transition-fast);
  padding: 4px 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--neon-cyan);
  box-shadow: 0 0 10px var(--neon-cyan-glow);
  transition: width var(--transition-base);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--neon-cyan);
  text-shadow: 0 0 10px var(--neon-cyan-glow);
}

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

.nav-cta-btn {
  background: linear-gradient(135deg, var(--neon-pink), #e11d48);
  color: #fff !important;
  padding: 10px 24px !important;
  border-radius: 6px;
  font-weight: 700 !important;
  letter-spacing: 0.06em;
  box-shadow: 0 0 20px var(--neon-pink-glow), 0 0 40px var(--neon-pink-dim);
  transition: all var(--transition-base) !important;
}

.nav-cta-btn::after { display: none !important; }

.nav-cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px var(--neon-pink-glow), 0 0 60px var(--neon-pink-dim), 0 8px 24px rgba(244, 63, 94, 0.3);
  color: #fff !important;
  text-shadow: none !important;
}

/* Hamburger Menu */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
  z-index: 1001;
}

.nav-toggle span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--neon-cyan);
  border-radius: 2px;
  transition: var(--transition-base);
  box-shadow: 0 0 6px var(--neon-cyan-glow);
}

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

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

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

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 120px 0 80px;
  background:
    radial-gradient(ellipse at 30% 20%, rgba(244, 63, 94, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 70% 60%, rgba(34, 211, 238, 0.06) 0%, transparent 60%),
    radial-gradient(ellipse at 50% 80%, rgba(168, 85, 247, 0.05) 0%, transparent 50%),
    var(--bg-deep);
}

/* Grid background */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(34, 211, 238, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 211, 238, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  animation: gridDrift 20s linear infinite;
}

@keyframes gridDrift {
  0% { transform: translate(0, 0); }
  100% { transform: translate(60px, 60px); }
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 860px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Neon border frame around hero */
.hero-frame {
  position: relative;
  border: 1px solid var(--border-neon-pink);
  padding: 56px 40px;
  background: rgba(10, 10, 15, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow:
    0 0 30px var(--neon-pink-dim),
    0 0 60px rgba(244, 63, 94, 0.08),
    inset 0 0 30px rgba(34, 211, 238, 0.04);
}

/* Corner accents */
.hero-frame::before,
.hero-frame::after {
  content: '';
  position: absolute;
  width: 30px;
  height: 30px;
}

.hero-frame::before {
  top: -1px; left: -1px;
  border-top: 2px solid var(--neon-pink);
  border-left: 2px solid var(--neon-pink);
  box-shadow: 0 0 12px var(--neon-pink-glow), -2px -2px 12px var(--neon-pink-dim);
}

.hero-frame::after {
  bottom: -1px; right: -1px;
  border-bottom: 2px solid var(--neon-cyan);
  border-right: 2px solid var(--neon-cyan);
  box-shadow: 0 0 12px var(--neon-cyan-glow), 2px 2px 12px var(--neon-cyan-dim);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--neon-cyan);
  border: 1px solid var(--border-neon-cyan);
  padding: 8px 20px;
  border-radius: 2px;
  margin-bottom: 28px;
  text-shadow: 0 0 8px var(--neon-cyan-glow);
  box-shadow: 0 0 12px var(--neon-cyan-dim), inset 0 0 12px var(--neon-cyan-dim);
  animation: badgePulse 3s ease-in-out infinite;
}

@keyframes badgePulse {
  0%, 100% { box-shadow: 0 0 12px var(--neon-cyan-dim), inset 0 0 12px var(--neon-cyan-dim); }
  50% { box-shadow: 0 0 24px var(--neon-cyan-glow), inset 0 0 20px var(--neon-cyan-dim); }
}

.hero-badge .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--neon-cyan);
  box-shadow: 0 0 10px var(--neon-cyan), 0 0 20px var(--neon-cyan-glow);
  animation: dotBlink 1.5s ease-in-out infinite;
}

@keyframes dotBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero-title {
  font-size: clamp(2rem, 5.5vw, 3.8rem);
  font-weight: 900;
  letter-spacing: 0.03em;
  line-height: 1.15;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #ffffff 0%, var(--neon-pink) 40%, var(--neon-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: none;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 36px;
  line-height: 1.8;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition-base);
  border: none;
  position: relative;
  overflow: hidden;
  font-family: var(--font-sans);
}

.btn-primary {
  background: linear-gradient(135deg, var(--neon-pink), #e11d48);
  color: #fff;
  box-shadow: 0 0 24px var(--neon-pink-glow), 0 0 48px var(--neon-pink-dim);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 36px var(--neon-pink-glow), 0 0 72px var(--neon-pink-dim), 0 12px 32px rgba(244, 63, 94, 0.35);
}

.btn-outline {
  background: transparent;
  color: var(--neon-cyan);
  border: 1px solid var(--border-neon-cyan);
  box-shadow: 0 0 12px var(--neon-cyan-dim), inset 0 0 12px var(--neon-cyan-dim);
}

.btn-outline:hover {
  background: rgba(34, 211, 238, 0.08);
  box-shadow: 0 0 24px var(--neon-cyan-glow), 0 0 48px var(--neon-cyan-dim), inset 0 0 20px var(--neon-cyan-dim);
  transform: translateY(-3px);
}

.btn-lg {
  padding: 18px 40px;
  font-size: 1.05rem;
}

/* Hero floating cards */
.hero-floating-cards {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 48px;
  position: relative;
  z-index: 2;
}

.hero-stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-dim);
  padding: 20px 28px;
  border-radius: 8px;
  text-align: center;
  min-width: 140px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: all var(--transition-base);
}

.hero-stat-card:hover {
  border-color: var(--border-neon-cyan);
  box-shadow: 0 0 24px var(--neon-cyan-dim);
  transform: translateY(-4px);
}

.hero-stat-card .stat-number {
  font-size: 2rem;
  font-weight: 900;
  font-family: var(--font-mono);
  background: linear-gradient(180deg, var(--neon-cyan), var(--neon-pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-stat-card .stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  margin-top: 4px;
}

/* ============================================================
   FEATURES SECTION
   ============================================================ */
.features {
  padding: var(--section-pad);
  position: relative;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(168, 85, 247, 0.05) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 50%, rgba(244, 63, 94, 0.04) 0%, transparent 50%),
    var(--bg-deep);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 48px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-dim);
  border-radius: 12px;
  padding: 36px 28px;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

/* Colored left border accent */
.feature-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  border-radius: 3px 0 0 3px;
  transition: all var(--transition-base);
}

.feature-card:nth-child(1)::before { background: var(--neon-pink); box-shadow: 0 0 12px var(--neon-pink-glow); }
.feature-card:nth-child(2)::before { background: var(--neon-cyan); box-shadow: 0 0 12px var(--neon-cyan-glow); }
.feature-card:nth-child(3)::before { background: var(--neon-purple); box-shadow: 0 0 12px var(--neon-purple-glow); }
.feature-card:nth-child(4)::before { background: var(--neon-gold); box-shadow: 0 0 12px var(--neon-gold-glow); }
.feature-card:nth-child(5)::before { background: var(--neon-green); box-shadow: 0 0 12px rgba(16, 185, 129, 0.5); }
.feature-card:nth-child(6)::before { background: var(--neon-pink); box-shadow: 0 0 12px var(--neon-pink-glow); }

.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-neon-cyan);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.4), 0 0 30px var(--neon-cyan-dim);
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
  position: relative;
}

.feature-icon::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 16px;
  opacity: 0.4;
  z-index: -1;
}

.feature-card:nth-child(1) .feature-icon { background: rgba(244,63,94,0.15); color: var(--neon-pink); }
.feature-card:nth-child(1) .feature-icon::after { box-shadow: 0 0 20px var(--neon-pink-glow); }
.feature-card:nth-child(2) .feature-icon { background: rgba(34,211,238,0.15); color: var(--neon-cyan); }
.feature-card:nth-child(2) .feature-icon::after { box-shadow: 0 0 20px var(--neon-cyan-glow); }
.feature-card:nth-child(3) .feature-icon { background: rgba(168,85,247,0.15); color: var(--neon-purple); }
.feature-card:nth-child(3) .feature-icon::after { box-shadow: 0 0 20px var(--neon-purple-glow); }
.feature-card:nth-child(4) .feature-icon { background: rgba(251,191,36,0.15); color: var(--neon-gold); }
.feature-card:nth-child(4) .feature-icon::after { box-shadow: 0 0 20px var(--neon-gold-glow); }
.feature-card:nth-child(5) .feature-icon { background: rgba(16,185,129,0.15); color: var(--neon-green); }
.feature-card:nth-child(5) .feature-icon::after { box-shadow: 0 0 20px rgba(16,185,129,0.5); }
.feature-card:nth-child(6) .feature-icon { background: rgba(244,63,94,0.15); color: var(--neon-pink); }
.feature-card:nth-child(6) .feature-icon::after { box-shadow: 0 0 20px var(--neon-pink-glow); }

.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: 0.03em;
}

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

/* ============================================================
   STATS SECTION
   ============================================================ */
.stats {
  padding: var(--section-pad);
  position: relative;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(34, 211, 238, 0.06) 0%, transparent 60%),
    var(--bg-card);
  border-top: 1px solid var(--border-dim);
  border-bottom: 1px solid var(--border-dim);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px;
  text-align: center;
}

.stat-item {
  padding: 32px 20px;
}

.stat-value {
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  font-weight: 900;
  font-family: var(--font-mono);
  background: linear-gradient(180deg, var(--neon-cyan), var(--neon-pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
}

.stat-value-wrapper {
  position: relative;
  display: inline-block;
}

.stat-value-wrapper::after {
  content: '';
  position: absolute;
  bottom: -8px; left: 10%; right: 10%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--neon-cyan), var(--neon-pink), transparent);
  border-radius: 2px;
}

.stat-name {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  margin-top: 20px;
  color: var(--text-primary);
}

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

/* ============================================================
   TESTIMONIALS SECTION
   ============================================================ */
.testimonials {
  padding: var(--section-pad);
  position: relative;
  background:
    radial-gradient(ellipse at 70% 30%, rgba(244, 63, 94, 0.05) 0%, transparent 50%),
    var(--bg-deep);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
  margin-top: 48px;
}

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border-dim);
  border-radius: 12px;
  padding: 32px;
  transition: all var(--transition-base);
  position: relative;
}

.testimonial-card:hover {
  border-color: var(--border-neon-pink);
  box-shadow: 0 0 30px var(--neon-pink-dim);
  transform: translateY(-4px);
}

.testimonial-quote {
  font-size: 3rem;
  line-height: 1;
  font-family: Georgia, serif;
  margin-bottom: 12px;
}

.testimonial-card:nth-child(1) .testimonial-quote { color: var(--neon-pink); text-shadow: 0 0 20px var(--neon-pink-glow); }
.testimonial-card:nth-child(2) .testimonial-quote { color: var(--neon-cyan); text-shadow: 0 0 20px var(--neon-cyan-glow); }
.testimonial-card:nth-child(3) .testimonial-quote { color: var(--neon-purple); text-shadow: 0 0 20px var(--neon-purple-glow); }

.testimonial-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
  color: #fff;
}

.testimonial-card:nth-child(1) .testimonial-avatar { background: linear-gradient(135deg, var(--neon-pink), #e11d48); }
.testimonial-card:nth-child(2) .testimonial-avatar { background: linear-gradient(135deg, var(--neon-cyan), #0891b2); }
.testimonial-card:nth-child(3) .testimonial-avatar { background: linear-gradient(135deg, var(--neon-purple), #7c3aed); }

.testimonial-name {
  font-weight: 700;
  font-size: 0.95rem;
}

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

/* ============================================================
   CTA SECTION
   ============================================================ */
.cta {
  padding: var(--section-pad);
  position: relative;
}

.cta-wrapper {
  max-width: 820px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  padding: 60px 40px;
  background: var(--bg-card);
  border-radius: 16px;
  border: 1px solid transparent;
  background-clip: padding-box;
}

/* Neon gradient border via pseudo-element */
.cta-wrapper::before {
  content: '';
  position: absolute;
  inset: -2px;
  z-index: -1;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--neon-pink), var(--neon-cyan), var(--neon-purple), var(--neon-pink));
  background-size: 300% 300%;
  animation: gradientShift 4s ease infinite;
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.cta-wrapper::after {
  content: '';
  position: absolute;
  inset: 2px;
  background: var(--bg-card);
  border-radius: 14px;
  z-index: -1;
}

.cta-title {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 900;
  letter-spacing: 0.03em;
  margin-bottom: 16px;
}

.cta-desc {
  color: var(--text-secondary);
  margin-bottom: 36px;
  font-size: 1.05rem;
  line-height: 1.8;
}

.cta-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border-dim);
  padding: 56px 0 28px;
}

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

.footer-brand-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.8;
  margin-top: 16px;
}

.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 20px;
  color: var(--neon-cyan);
}

.footer-col a {
  display: block;
  color: var(--text-secondary);
  font-size: 0.9rem;
  padding: 6px 0;
  transition: color var(--transition-fast);
}

.footer-col a:hover {
  color: var(--neon-cyan);
}

.footer-bottom {
  border-top: 1px solid var(--border-dim);
  padding-top: 24px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ============================================================
   FLOATING CUSTOMER SERVICE (客服)
   ============================================================ */
.cs-float {
  position: fixed;
  right: 24px;
  bottom: 100px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: flex-end;
}

.cs-btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  cursor: pointer;
  border: none;
  color: #fff;
  transition: all var(--transition-base);
  position: relative;
}

.cs-btn-main {
  background: linear-gradient(135deg, var(--neon-pink), #e11d48);
  box-shadow: 0 0 24px var(--neon-pink-glow), 0 4px 20px rgba(0,0,0,0.4);
  animation: csPulse 2s ease-in-out infinite;
}

@keyframes csPulse {
  0%, 100% { box-shadow: 0 0 24px var(--neon-pink-glow), 0 4px 20px rgba(0,0,0,0.4); }
  50% { box-shadow: 0 0 40px var(--neon-pink-glow), 0 0 60px var(--neon-pink-dim), 0 4px 24px rgba(0,0,0,0.5); }
}

.cs-btn-main:hover {
  transform: scale(1.1);
}

.cs-panel {
  position: absolute;
  bottom: 64px;
  right: 0;
  width: 280px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-neon-pink);
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 0 30px var(--neon-pink-dim), 0 16px 40px rgba(0,0,0,0.5);
  display: none;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.cs-panel.active { display: block; }

.cs-panel h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--neon-cyan);
}

.cs-panel-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border-dim);
  color: var(--text-secondary);
  font-size: 0.9rem;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.cs-panel-item:hover { color: var(--neon-cyan); }

.cs-panel-item:last-child { border-bottom: none; }

.cs-panel-close {
  position: absolute;
  top: 12px; right: 12px;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.2rem;
}

/* Back to top */
.cs-btn-top {
  background: var(--bg-elevated);
  border: 1px solid var(--border-neon-cyan);
  box-shadow: 0 0 12px var(--neon-cyan-dim);
  color: var(--neon-cyan);
  font-size: 1rem;
}

.cs-btn-top:hover {
  box-shadow: 0 0 24px var(--neon-cyan-glow);
  transform: translateY(-3px);
}

/* ============================================================
   DOWNLOAD PAGE
   ============================================================ */
.download-hero {
  padding: 160px 0 80px;
  position: relative;
  background:
    radial-gradient(ellipse at 50% 30%, rgba(244, 63, 94, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 50% 70%, rgba(34, 211, 238, 0.06) 0%, transparent 50%),
    var(--bg-deep);
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
  margin-top: 48px;
}

.download-card {
  background: var(--bg-card);
  border: 1px solid var(--border-dim);
  border-radius: 14px;
  padding: 40px 28px;
  text-align: center;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.download-card.featured {
  border-color: var(--border-neon-pink);
  box-shadow: 0 0 30px var(--neon-pink-dim);
}

.download-card.featured::before {
  content: 'HOT';
  position: absolute;
  top: 14px; right: -28px;
  background: var(--neon-pink);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  padding: 4px 36px;
  transform: rotate(45deg);
  box-shadow: 0 0 16px var(--neon-pink-glow);
}

.download-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-neon-cyan);
  box-shadow: 0 12px 40px rgba(0,0,0,0.4), 0 0 24px var(--neon-cyan-dim);
}

.download-icon {
  width: 72px; height: 72px;
  margin: 0 auto 20px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
}

.download-card:nth-child(1) .download-icon { background: rgba(244,63,94,0.15); color: var(--neon-pink); box-shadow: 0 0 20px var(--neon-pink-dim); }
.download-card:nth-child(2) .download-icon { background: rgba(34,211,238,0.15); color: var(--neon-cyan); box-shadow: 0 0 20px var(--neon-cyan-dim); }
.download-card:nth-child(3) .download-icon { background: rgba(168,85,247,0.15); color: var(--neon-purple); box-shadow: 0 0 20px var(--neon-purple-dim); }

.download-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.download-card .version {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-bottom: 16px;
}

.download-card .dl-info {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
  line-height: 1.7;
}

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

.download-steps {
  margin-top: 64px;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  margin-top: 32px;
}

.step-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.step-num {
  width: 40px; height: 40px;
  min-width: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--neon-pink), var(--neon-cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.1rem;
  color: #fff;
  box-shadow: 0 0 16px var(--neon-pink-glow);
}

.step-content h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.step-content p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================================
   CLUB PAGE
   ============================================================ */
.club-hero {
  padding: 160px 0 80px;
  position: relative;
  background:
    radial-gradient(ellipse at 30% 40%, rgba(244, 63, 94, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 70% 60%, rgba(34, 211, 238, 0.06) 0%, transparent 50%),
    var(--bg-deep);
}

.club-intro {
  padding: 80px 0;
  background: var(--bg-deep);
}

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

.club-intro-text h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 800;
  margin-bottom: 20px;
  line-height: 1.3;
}

.club-intro-text p {
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 16px;
}

.club-intro-visual {
  background: var(--bg-card);
  border: 1px solid var(--border-neon-cyan);
  border-radius: 16px;
  padding: 48px 36px;
  text-align: center;
  box-shadow: 0 0 30px var(--neon-cyan-dim);
  position: relative;
}

.club-intro-visual::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: 17px;
  z-index: -1;
  background: linear-gradient(135deg, var(--neon-cyan), var(--neon-pink));
  opacity: 0.4;
}

.club-big-icon {
  font-size: 4rem;
  margin-bottom: 16px;
  text-shadow: 0 0 30px var(--neon-cyan-glow);
}

.club-benefits {
  padding: 100px 0;
  background:
    radial-gradient(ellipse at 50% 50%, rgba(168, 85, 247, 0.05) 0%, transparent 60%),
    var(--bg-card);
  border-top: 1px solid var(--border-dim);
  border-bottom: 1px solid var(--border-dim);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin-top: 48px;
}

.benefit-card {
  background: var(--bg-deep);
  border: 1px solid var(--border-dim);
  border-radius: 12px;
  padding: 32px 24px;
  text-align: center;
  transition: all var(--transition-base);
}

.benefit-card:hover {
  border-color: var(--border-neon-pink);
  box-shadow: 0 0 24px var(--neon-pink-dim);
  transform: translateY(-4px);
}

.benefit-num {
  font-size: 2.5rem;
  font-weight: 900;
  font-family: var(--font-mono);
  background: linear-gradient(180deg, var(--neon-pink), var(--neon-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}

.benefit-card h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.benefit-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.club-games {
  padding: 100px 0;
  background: var(--bg-deep);
}

.games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-top: 48px;
}

.game-tag {
  background: var(--bg-card);
  border: 1px solid var(--border-dim);
  border-radius: 8px;
  padding: 20px;
  text-align: center;
  font-weight: 700;
  letter-spacing: 0.05em;
  transition: all var(--transition-base);
  cursor: pointer;
  font-size: 0.95rem;
}

.game-tag:hover {
  border-color: var(--neon-cyan);
  box-shadow: 0 0 20px var(--neon-cyan-dim);
  color: var(--neon-cyan);
  transform: translateY(-3px);
}

/* ============================================================
   REVEAL ANIMATIONS (Intersection Observer)
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--ease-out-expo), transform 0.8s var(--ease-out-expo);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ============================================================
   PAGE HEADER (inner pages)
   ============================================================ */
.page-header {
  text-align: center;
  margin-bottom: 32px;
}

.page-header .section-label { margin-bottom: 16px; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .club-intro-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  :root { --section-pad: 60px 0; }

  .nav-toggle { display: flex; }

  .nav-links {
    position: fixed;
    top: 0; right: -100%;
    width: 280px;
    height: 100vh;
    flex-direction: column;
    background: var(--bg-overlay);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 100px 32px 40px;
    gap: 24px;
    transition: right var(--transition-base);
    border-left: 1px solid var(--border-dim);
  }

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

  .hero-frame { padding: 32px 20px; }

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

  .cta-wrapper { padding: 40px 20px; }

  .hero-buttons { flex-direction: column; align-items: center; }
  .hero-buttons .btn { width: 100%; max-width: 280px; justify-content: center; }

  .hero-stat-card { min-width: 100px; padding: 16px 20px; }

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

  .cs-float { right: 16px; bottom: 80px; }
  .cs-panel { width: 260px; right: 0; }
}

@media (max-width: 480px) {
  .hero-frame { padding: 24px 14px; }
  .hero-badge { font-size: 0.65rem; padding: 6px 14px; }
  .hero-stat-card { padding: 12px 14px; }
  .hero-stat-card .stat-number { font-size: 1.4rem; }
  .games-grid { grid-template-columns: 1fr 1fr; }
}

/* ============================================================
   UTILITY
   ============================================================ */
.text-gradient {
  background: linear-gradient(135deg, var(--neon-pink), var(--neon-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-neon-pink { color: var(--neon-pink); text-shadow: 0 0 10px var(--neon-pink-glow); }
.text-neon-cyan { color: var(--neon-cyan); text-shadow: 0 0 10px var(--neon-cyan-glow); }

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* glitch effect for special text */
.glitch-text {
  position: relative;
}

.glitch-text:hover {
  animation: glitch 0.3s ease;
}

@keyframes glitch {
  0% { transform: translate(0); }
  20% { transform: translate(-2px, 2px); }
  40% { transform: translate(2px, -2px); }
  60% { transform: translate(-1px, -1px); }
  80% { transform: translate(1px, 1px); }
  100% { transform: translate(0); }
}

/* neon flicker for icon elements */
.neon-flicker {
  animation: neonFlicker 4s ease-in-out infinite;
}

@keyframes neonFlicker {
  0%, 19%, 21%, 23%, 25%, 54%, 56%, 100% { opacity: 1; }
  20%, 24%, 55% { opacity: 0.6; }
}