/* ==========================================
   USDT CZ - Complete Stylesheet
   Theme: Dark Crypto/USDT
   Colors: #0a0e1a (bg), #26a17b (green), #f0b90b (gold), #c0c0c0 (silver)
   ========================================== */

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

:root {
  --bg-primary: #0a0e1a;
  --bg-secondary: #0f1528;
  --bg-card: #121a30;
  --bg-card-hover: #182240;
  --green: #26a17b;
  --green-dark: #1a7d5e;
  --green-light: #3ec99e;
  --gold: #f0b90b;
  --gold-dark: #c8960a;
  --gold-light: #fad648;
  --silver: #c0c0c0;
  --silver-dark: #909090;
  --text-primary: #e8e8e8;
  --text-secondary: #a0a8b8;
  --text-muted: #606878;
  --border: #1e2840;
  --border-light: #2a3860;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-glow-green: 0 0 20px rgba(38,161,123,0.3);
  --shadow-glow-gold: 0 0 20px rgba(240,185,11,0.3);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
}

html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--green); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--green-light); }
img { max-width: 100%; height: auto; }

/* ============ Glassmorphism ============ */
.glass {
  background: rgba(18, 26, 48, 0.6);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.06);
}

/* ============ Utilities ============ */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }
.section { padding: 80px 0; }
.section-dark { background: var(--bg-secondary); }
.section-title {
  text-align: center;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 12px;
  background: linear-gradient(135deg, var(--green), var(--gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto 50px;
}
.gradient-text {
  background: linear-gradient(135deg, var(--green), var(--gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-decoration: none;
}
.btn-primary {
  background: linear-gradient(135deg, var(--green), var(--green-dark));
  color: #fff;
  box-shadow: var(--shadow-glow-green);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(38,161,123,0.5);
  color: #fff;
}
.btn-gold {
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: #0a0e1a;
  box-shadow: var(--shadow-glow-gold);
}
.btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(240,185,11,0.5);
  color: #0a0e1a;
}
.btn-outline {
  background: transparent;
  border: 1px solid var(--border-light);
  color: var(--text-primary);
}
.btn-outline:hover {
  border-color: var(--green);
  color: var(--green);
  transform: translateY(-2px);
}
.btn-sm { padding: 10px 20px; font-size: 0.875rem; }

/* ============ Navigation ============ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
}
.navbar.scrolled {
  background: rgba(10, 14, 26, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 10px 0;
}
.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  font-weight: 700;
}
.navbar-brand .logo-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--green), var(--gold));
  border-radius: 8px;
  font-weight: 800;
  font-size: 1rem;
  color: #0a0e1a;
}
.navbar-brand .logo-text { color: var(--text-primary); }
.navbar-brand .logo-accent { color: var(--green); }

.navbar-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}
.navbar-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
  padding: 4px 0;
}
.navbar-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--green), var(--gold));
  transition: var(--transition);
}
.navbar-links a:hover::after,
.navbar-links a.active::after { width: 100%; }
.navbar-links a:hover,
.navbar-links a.active { color: var(--text-primary); }
.navbar-links .btn-nav {
  padding: 8px 20px;
  border-radius: 50px;
  background: linear-gradient(135deg, var(--green), var(--green-dark));
  color: #fff;
  font-size: 0.85rem;
  font-weight: 600;
}
.navbar-links .btn-nav:hover { transform: translateY(-1px); color: #fff; }
.navbar-links .btn-nav::after { display: none; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
  z-index: 1001;
}
.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ============ Hero ============ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 20px 80px;
  overflow: hidden;
  background: linear-gradient(135deg, #0a0e1a 0%, #0f1528 50%, #121a30 100%);
}
.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(ellipse at 30% 50%, rgba(38,161,123,0.08) 0%, transparent 50%),
              radial-gradient(ellipse at 70% 50%, rgba(240,185,11,0.06) 0%, transparent 50%);
  animation: heroPulse 8s ease-in-out infinite alternate;
}
@keyframes heroPulse {
  0% { transform: translate(0, 0) rotate(0deg); }
  100% { transform: translate(-2%, -1%) rotate(2deg); }
}

.hero-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}
.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  opacity: 0;
  animation: particleFloat linear infinite;
}
.particle.green { background: var(--green); box-shadow: 0 0 6px var(--green); }
.particle.gold { background: var(--gold); box-shadow: 0 0 6px var(--gold); }
.particle.silver { background: var(--silver); box-shadow: 0 0 6px var(--silver); }
@keyframes particleFloat {
  0% { opacity: 0; transform: translateY(100vh) scale(0); }
  10% { opacity: 0.8; }
  90% { opacity: 0.4; }
  100% { opacity: 0; transform: translateY(-10vh) scale(1); }
}

.hero-content { position: relative; z-index: 1; max-width: 800px; }
.hero-badge {
  display: inline-block;
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 0.85rem;
  background: rgba(38,161,123,0.15);
  border: 1px solid rgba(38,161,123,0.3);
  color: var(--green-light);
  margin-bottom: 20px;
}
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 16px;
}
.hero h1 span { background: linear-gradient(135deg, var(--green), var(--gold)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto 36px;
  line-height: 1.7;
}
.hero-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* Hero stats */
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-top: 50px;
  flex-wrap: wrap;
}
.hero-stat { text-align: center; }
.hero-stat .num {
  font-size: 1.8rem;
  font-weight: 800;
  font-family: var(--font-mono);
  background: linear-gradient(135deg, var(--green), var(--gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-stat .label { font-size: 0.8rem; color: var(--text-muted); margin-top: 4px; }

/* ============ Breadcrumbs ============ */
.breadcrumb {
  padding: 100px 0 20px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}
.breadcrumb-inner { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; color: var(--text-muted); flex-wrap: wrap; }
.breadcrumb-inner a { color: var(--text-secondary); }
.breadcrumb-inner a:hover { color: var(--green); }
.breadcrumb-inner .sep { color: var(--text-muted); }
.breadcrumb-inner .current { color: var(--green); }

/* ============ Page Header ============ */
.page-header {
  padding: 60px 0;
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-card));
  text-align: center;
  border-bottom: 1px solid var(--border);
}
.page-header h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.page-header p { color: var(--text-secondary); max-width: 600px; margin: 0 auto; }

/* ============ Feature Grid (USDT平台) ============ */
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--green), var(--gold));
  opacity: 0;
  transition: var(--transition);
}
.feature-card:hover { transform: translateY(-4px); border-color: var(--border-light); box-shadow: var(--shadow); }
.feature-card:hover::before { opacity: 1; }
.feature-card .icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 16px;
  background: rgba(38,161,123,0.15);
  color: var(--green);
}
.feature-card h3 { font-size: 1.15rem; margin-bottom: 8px; }
.feature-card p { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.6; }

/* ============ Timeline (USDT集团) ============ */
.timeline { position: relative; max-width: 800px; margin: 0 auto; padding: 20px 0; }
.timeline::before {
  content: '';
  position: absolute;
  left: 24px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--green), var(--gold), transparent);
}
.timeline-item {
  position: relative;
  padding-left: 64px;
  margin-bottom: 40px;
}
.timeline-item:last-child { margin-bottom: 0; }
.timeline-dot {
  position: absolute;
  left: 16px;
  top: 4px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 3px solid var(--green);
  z-index: 1;
}
.timeline-dot.gold { border-color: var(--gold); }
.timeline-dot.silver { border-color: var(--silver); }
.timeline-date { font-size: 0.8rem; color: var(--green); font-family: var(--font-mono); margin-bottom: 4px; }
.timeline-item h3 { font-size: 1.1rem; margin-bottom: 6px; }
.timeline-item p { color: var(--text-secondary); font-size: 0.9rem; }

/* ============ Cards (USDT充值) ============ */
.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition);
  position: relative;
}
.step-card:hover { transform: translateY(-4px); border-color: var(--border-light); box-shadow: var(--shadow); }
.step-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.2rem;
  margin: 0 auto 16px;
  background: linear-gradient(135deg, var(--green), var(--green-dark));
  color: #fff;
}
.step-card h3 { font-size: 1.1rem; margin-bottom: 8px; }
.step-card p { color: var(--text-secondary); font-size: 0.9rem; }

/* ============ Table (USDT支付) ============ */
.table-wrapper { overflow-x: auto; margin: 0 -4px; padding: 4px; }
.compare-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border);
}
.compare-table th, .compare-table td {
  padding: 16px 20px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.compare-table th {
  background: var(--bg-secondary);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.compare-table th:first-child { background: linear-gradient(135deg, var(--green), var(--green-dark)); color: #fff; }
.compare-table td:first-child { font-weight: 600; }
.compare-table tr:last-child td { border-bottom: 0; }
.compare-table .check { color: var(--green); }
.compare-table .cross { color: #e74c3c; }

/* ============ Download (USDT官方下载) ============ */
.download-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; }
.download-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition);
}
.download-card:hover { transform: translateY(-4px); border-color: var(--border-light); box-shadow: var(--shadow); }
.download-card .platform-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 16px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
}
.download-card .platform-icon.ios { background: rgba(192,192,192,0.15); color: var(--silver); }
.download-card .platform-icon.android { background: rgba(38,161,123,0.15); color: var(--green); }
.download-card .platform-icon.windows { background: rgba(240,185,11,0.15); color: var(--gold); }
.download-card .platform-icon.mac { background: rgba(192,192,192,0.15); color: var(--silver); }
.download-card h3 { font-size: 1.1rem; margin-bottom: 6px; }
.download-card .version { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 16px; font-family: var(--font-mono); }
.download-card .qr-placeholder {
  width: 120px;
  height: 120px;
  margin: 16px auto;
  border: 2px dashed var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ============ Coupon/Deal (USDT优惠) ============ */
.deal-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
.deal-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  position: relative;
}
.deal-card:hover { transform: translateY(-4px); border-color: var(--border-light); box-shadow: var(--shadow); }
.deal-header {
  padding: 24px 24px 16px;
  background: linear-gradient(135deg, rgba(38,161,123,0.1), rgba(240,185,11,0.05));
  border-bottom: 1px solid var(--border);
}
.deal-header .discount {
  font-size: 2.5rem;
  font-weight: 800;
  font-family: var(--font-mono);
  background: linear-gradient(135deg, var(--gold), var(--green));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.deal-countdown {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 8px;
  font-family: var(--font-mono);
}
.deal-body { padding: 16px 24px 24px; }
.deal-body h3 { font-size: 1rem; margin-bottom: 6px; }
.deal-body p { color: var(--text-secondary); font-size: 0.85rem; margin-bottom: 12px; }
.deal-tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 50px;
  font-size: 0.75rem;
  background: rgba(240,185,11,0.15);
  color: var(--gold);
}

/* ============ Exchange Calculator (USDT兑换) ============ */
.exchange-section { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.calculator {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}
.calculator h3 { font-size: 1.2rem; margin-bottom: 24px; }
.calc-row { margin-bottom: 16px; }
.calc-row label { display: block; font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 6px; }
.calc-row input, .calc-row select {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 1rem;
  transition: var(--transition);
  font-family: var(--font-mono);
}
.calc-row input:focus, .calc-row select:focus {
  outline: none;
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(38,161,123,0.15);
}
.calc-result {
  text-align: center;
  padding: 20px;
  background: rgba(38,161,123,0.1);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(38,161,123,0.2);
  margin-top: 8px;
}
.calc-result .rate { font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 4px; }
.calc-result .amount { font-size: 1.5rem; font-weight: 800; font-family: var(--font-mono); color: var(--green); }
.exchange-rates {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}
.exchange-rates h3 { font-size: 1.2rem; margin-bottom: 24px; }
.rate-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}
.rate-item:last-child { border-bottom: 0; }
.rate-pair { font-weight: 600; }
.rate-value { font-family: var(--font-mono); color: var(--green); }
.rate-change { font-size: 0.85rem; }
.rate-change.up { color: var(--green); }
.rate-change.down { color: #e74c3c; }

/* ============ VIP Tiers (VIP优惠申请大厅) ============ */
.vip-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.vip-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 28px;
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.vip-card.featured {
  border-color: var(--gold);
  box-shadow: 0 0 30px rgba(240,185,11,0.15);
  transform: scale(1.02);
}
.vip-card.featured::before {
  content: '推荐';
  position: absolute;
  top: 16px;
  right: -32px;
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: #0a0e1a;
  padding: 4px 40px;
  font-size: 0.75rem;
  font-weight: 700;
  transform: rotate(45deg);
}
.vip-card:hover { transform: translateY(-4px); }
.vip-card.featured:hover { transform: scale(1.02) translateY(-4px); }
.vip-tier {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--gold);
  margin-bottom: 12px;
}
.vip-card h3 { font-size: 1.5rem; margin-bottom: 4px; }
.vip-price { font-size: 2rem; font-weight: 800; font-family: var(--font-mono); color: var(--green); }
.vip-price span { font-size: 0.9rem; color: var(--text-muted); }
.vip-features { list-style: none; margin: 24px 0; text-align: left; }
.vip-features li {
  padding: 8px 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 8px;
}
.vip-features li::before { content: '✓'; color: var(--green); font-weight: 700; }

/* ============ Interlink / Related ============ */
.interlink-section { background: var(--bg-secondary); }
.interlink-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }
.interlink-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px;
  text-align: center;
  transition: var(--transition);
}
.interlink-card:hover { border-color: var(--green); transform: translateY(-2px); }
.interlink-card .il-icon { font-size: 1.5rem; margin-bottom: 8px; }
.interlink-card h4 { font-size: 0.9rem; color: var(--text-primary); }
.interlink-card p { font-size: 0.75rem; color: var(--text-muted); margin-top: 4px; }

/* ============ FAQ (Accordion) ============ */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: var(--border-light); }
.faq-item.active { border-color: var(--green); }
.faq-question {
  padding: 18px 20px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  font-size: 0.95rem;
  user-select: none;
}
.faq-question .arrow { transition: var(--transition); font-size: 0.8rem; }
.faq-item.active .faq-question .arrow { transform: rotate(180deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}
.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 0 20px 18px;
}
.faq-answer p { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.7; }

/* ============ Features Strip ============ */
.features-strip { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 20px; }
.feature-mini {
  text-align: center;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.feature-mini .fm-icon { font-size: 2rem; margin-bottom: 12px; }
.feature-mini h4 { font-size: 0.95rem; margin-bottom: 4px; }
.feature-mini p { font-size: 0.8rem; color: var(--text-muted); }

/* ============ Content Area ============ */
.content-area { max-width: 800px; margin: 0 auto; }
.content-area h2 { font-size: 1.5rem; margin: 32px 0 12px; color: var(--green-light); }
.content-area h3 { font-size: 1.2rem; margin: 24px 0 10px; }
.content-area p { color: var(--text-secondary); line-height: 1.8; margin-bottom: 16px; }
.content-area ul { list-style: none; margin: 16px 0; }
.content-area ul li { padding: 6px 0 6px 24px; position: relative; color: var(--text-secondary); }
.content-area ul li::before { content: '▸'; position: absolute; left: 0; color: var(--green); }

/* ============ About / Contact ============ */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.contact-info h2 { margin-bottom: 16px; }
.contact-info p { color: var(--text-secondary); margin-bottom: 24px; }
.contact-item { display: flex; gap: 12px; margin-bottom: 16px; }
.contact-item .ci-icon { width: 40px; height: 40px; border-radius: 10px; background: rgba(38,161,123,0.15); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.contact-item .ci-label { font-size: 0.8rem; color: var(--text-muted); }
.contact-item .ci-value { font-size: 0.95rem; }
.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 6px; }
.form-group input, .form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: var(--transition);
  font-family: var(--font);
}
.form-group textarea { min-height: 120px; resize: vertical; }
.form-group input:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(38,161,123,0.15);
}

/* ============ CTA Section ============ */
.cta-section {
  text-align: center;
  padding: 80px 20px;
  background: linear-gradient(135deg, rgba(38,161,123,0.08), rgba(240,185,11,0.05));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.cta-section h2 { font-size: 2rem; margin-bottom: 12px; }
.cta-section p { color: var(--text-secondary); margin-bottom: 28px; }

/* ============ Footer ============ */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 60px 0 30px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
.footer-brand h3 { font-size: 1.2rem; margin-bottom: 8px; }
.footer-brand p { color: var(--text-secondary); font-size: 0.85rem; line-height: 1.7; }
.footer h4 { font-size: 0.9rem; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 16px; color: var(--text-muted); }
.footer ul { list-style: none; }
.footer ul li { margin-bottom: 8px; }
.footer ul li a { color: var(--text-secondary); font-size: 0.85rem; }
.footer ul li a:hover { color: var(--green); }
.footer-bottom {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ============ Stats Counter ============ */
.stats-section {
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-card));
  padding: 60px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; text-align: center; }
.stat-item .stat-num {
  font-size: 2rem;
  font-weight: 800;
  font-family: var(--font-mono);
  background: linear-gradient(135deg, var(--green), var(--gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-item .stat-label { font-size: 0.85rem; color: var(--text-secondary); margin-top: 4px; }

/* ============ Tags ============ */
.tag-cloud { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.tag-item {
  padding: 8px 18px;
  border-radius: 50px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.85rem;
  transition: var(--transition);
}
.tag-item:hover { border-color: var(--green); color: var(--green); transform: translateY(-2px); }

/* ============ Pagination ============ */
.pagination { display: flex; gap: 8px; justify-content: center; margin-top: 40px; }
.pagination a, .pagination span {
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.85rem;
  transition: var(--transition);
}
.pagination a:hover { border-color: var(--green); color: var(--green); }
.pagination .current { background: var(--green); border-color: var(--green); color: #fff; }

/* ============ Particle page header ============ */
.page-hero {
  position: relative;
  padding: 120px 0 60px;
  text-align: center;
  background: linear-gradient(135deg, var(--bg-secondary), #0f1528);
  overflow: hidden;
}
.page-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--green), var(--gold), transparent);
}
.page-hero h1 { font-size: 2.2rem; font-weight: 700; margin-bottom: 8px; }
.page-hero p { color: var(--text-secondary); max-width: 600px; margin: 0 auto; }

/* ============ Mobile Nav Overlay ============ */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10,14,26,0.95);
  backdrop-filter: blur(16px);
  z-index: 999;
  padding: 80px 20px;
}
.nav-overlay.active { display: flex; flex-direction: column; align-items: center; gap: 20px; }
.nav-overlay a { color: var(--text-secondary); font-size: 1.2rem; font-weight: 500; }

/* ============ Responsive ============ */
@media (max-width: 968px) {
  .exchange-section { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .navbar-links { display: none; }
  .hamburger { display: flex; }
  .hero h1 { font-size: 1.8rem; }
  .section-title { font-size: 1.5rem; }
  .section { padding: 50px 0; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 20px; }
  .vip-card.featured { transform: none; }
  .vip-card.featured:hover { transform: translateY(-4px); }
  .breadcrumb { padding: 80px 0 16px; }
  .page-hero { padding: 100px 0 40px; }
  .page-hero h1 { font-size: 1.6rem; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .hero-buttons { flex-direction: column; align-items: center; }
  .btn { width: 100%; max-width: 280px; justify-content: center; }
  .deal-grid { grid-template-columns: 1fr; }
}