/* ============================================================
   BAJI365 - Global Stylesheet
   Site: www.365baji-play.com
   ============================================================ */

/* ---- CSS Variables / Design System ---- */
:root {
  --primary: #FF6B00;
  --primary-dark: #E63000;
  --primary-light: #FF8C33;
  --gold: #FFD700;
  --gold-dark: #FFA500;
  --accent-green: #00CC55;
  --bg-dark: #0a0a1a;
  --bg-mid: #12122a;
  --bg-card: #1a1a3e;
  --bg-card-hover: #22224e;
  --bg-section-alt: #0f0f22;
  --text-primary: #ffffff;
  --text-secondary: #cccccc;
  --text-muted: #888888;
  --border-color: rgba(255,215,0,0.15);
  --border-accent: rgba(255,107,0,0.3);
  --shadow-card: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-glow: 0 0 20px rgba(255,107,0,0.25);
  --shadow-gold: 0 0 16px rgba(255,215,0,0.2);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;
  --font-stack: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  --transition: 0.25s ease;
  --header-height: 72px;
}

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

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

body {
  font-family: var(--font-stack);
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--gold); }
ul { list-style: none; }

/* ---- Typography ---- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-primary);
}
h1 { font-size: clamp(1.8rem, 4vw, 3rem); }
h2 { font-size: clamp(1.4rem, 3vw, 2.2rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.5rem); }
h4 { font-size: 1.1rem; }
p { margin-bottom: 1rem; color: var(--text-secondary); }

.text-gold { color: var(--gold); }
.text-primary-color { color: var(--primary); }
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }

/* ---- Layout ---- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.section { padding: 80px 0; }
.section-sm { padding: 48px 0; }
.section-alt { background: var(--bg-section-alt); }
.section-dark { background: var(--bg-mid); }

.section-header {
  text-align: center;
  margin-bottom: 48px;
}
.section-header h2 { margin-bottom: 12px; }
.section-header p { max-width: 600px; margin: 0 auto; }

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--primary);
  background: rgba(255,107,0,0.1);
  border: 1px solid rgba(255,107,0,0.3);
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 12px;
}

/* ---- Header ---- */
#site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(10,10,26,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  height: var(--header-height);
  transition: background var(--transition), box-shadow var(--transition);
}
#site-header.scrolled {
  background: rgba(10,10,26,0.99);
  box-shadow: 0 2px 20px rgba(0,0,0,0.5);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: 16px;
}

/* ---- Logo ---- */
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  max-height: 48px;
}
.site-logo svg {
  width: auto;
  height: 40px;
  max-height: 40px;
  display: block;
}
.logo-text {
  font-size: 1.3rem;
  font-weight: 900;
  letter-spacing: -0.5px;
  color: var(--gold);
  white-space: nowrap;
}
.logo-text span { color: var(--primary); }

/* ---- Navigation ---- */
.main-nav { display: flex; align-items: center; }
.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-list a {
  display: block;
  padding: 8px 14px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
  white-space: nowrap;
}
.nav-list a:hover,
.nav-list a.active {
  color: var(--gold);
  background: rgba(255,215,0,0.08);
}
.nav-list a.nav-home {
  color: var(--gold);
  font-weight: 700;
}

/* ---- Header CTA Buttons ---- */
.header-cta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 22px;
  font-size: 0.875rem;
  font-weight: 700;
  border-radius: var(--radius-xl);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  text-decoration: none;
}

.btn-register {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 4px 14px rgba(255,107,0,0.35);
}
.btn-register:hover {
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(255,107,0,0.5);
}

.btn-login {
  background: transparent;
  color: var(--gold);
  border-color: var(--gold);
}
.btn-login:hover {
  background: var(--gold);
  color: #000;
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  border-color: var(--primary);
  padding: 14px 32px;
  font-size: 1rem;
  box-shadow: 0 4px 14px rgba(255,107,0,0.35);
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255,107,0,0.5);
}

.btn-gold {
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: #000;
  border-color: var(--gold);
  padding: 14px 32px;
  font-size: 1rem;
  font-weight: 800;
}
.btn-gold:hover {
  background: linear-gradient(135deg, #ffe033, var(--gold));
  color: #000;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255,215,0,0.4);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border-color: rgba(255,255,255,0.3);
  padding: 14px 32px;
  font-size: 1rem;
}
.btn-outline:hover {
  border-color: var(--gold);
  color: var(--gold);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.8rem;
}

.btn-lg {
  padding: 16px 40px;
  font-size: 1.1rem;
}

/* ---- Mobile Menu Toggle ---- */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}
.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition);
}
.menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---- Banner ---- */
.home-banner {
  width: 100%;
  overflow: hidden;
  line-height: 0;
  position: relative;
}
.home-banner img,
.home-banner svg {
  width: 100%;
  height: auto;
  max-height: 520px;
  object-fit: cover;
  display: block;
}

/* ---- Hero Section ---- */
.hero-section {
  padding: 80px 0 60px;
  position: relative;
  overflow: hidden;
}
.hero-section::before {
  content: '';
  position: absolute;
  top: -100px;
  left: -100px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255,107,0,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.hero-section::after {
  content: '';
  position: absolute;
  bottom: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255,215,0,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content { position: relative; z-index: 1; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,107,0,0.1);
  border: 1px solid rgba(255,107,0,0.3);
  border-radius: 20px;
  padding: 6px 16px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 20px;
}
.hero-badge::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.hero-title { margin-bottom: 20px; }
.hero-title .highlight {
  background: linear-gradient(135deg, var(--gold), var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc { font-size: 1.1rem; margin-bottom: 32px; max-width: 600px; }

.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 40px; }

.hero-stats {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
}
.stat-item { text-align: center; }
.stat-number {
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--gold);
  line-height: 1;
}
.stat-label { font-size: 0.8rem; color: var(--text-muted); margin-top: 4px; }

/* ---- Cards ---- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: all var(--transition);
}
.card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(255,107,0,0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 1.5rem;
}
.card-icon-orange { background: rgba(255,107,0,0.15); color: var(--primary); }
.card-icon-gold { background: rgba(255,215,0,0.12); color: var(--gold); }
.card-icon-green { background: rgba(0,204,85,0.12); color: var(--accent-green); }
.card-icon-blue { background: rgba(0,150,255,0.12); color: #0096ff; }

.card h3 { margin-bottom: 10px; font-size: 1.1rem; }
.card p { font-size: 0.9rem; margin-bottom: 0; }

/* ---- Grid Layouts ---- */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }

/* ---- Feature Cards ---- */
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  text-align: center;
  transition: all 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(--primary), var(--gold));
  opacity: 0;
  transition: opacity var(--transition);
}
.feature-card:hover::before { opacity: 1; }
.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(255,107,0,0.25);
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow);
}
.feature-card .icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
  display: block;
}
.feature-card h3 { margin-bottom: 10px; }
.feature-card p { font-size: 0.9rem; margin-bottom: 0; }

/* ---- Category Cards ---- */
.category-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
  display: block;
  text-decoration: none;
}
.category-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}
.category-card-img {
  height: 160px;
  background: linear-gradient(135deg, var(--bg-mid), var(--bg-card));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  position: relative;
  overflow: hidden;
}
.category-card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 50%, rgba(0,0,0,0.5));
}
.category-card-body { padding: 20px; }
.category-card-body h3 { margin-bottom: 6px; font-size: 1rem; color: var(--text-primary); }
.category-card-body p { font-size: 0.85rem; margin-bottom: 0; }

/* ---- Stats Section ---- */
.stats-section {
  background: linear-gradient(135deg, var(--bg-mid), var(--bg-card));
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.stat-box {
  text-align: center;
  padding: 40px 20px;
  border-right: 1px solid var(--border-color);
}
.stat-box:last-child { border-right: none; }
.stat-box .number {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 8px;
}
.stat-box .label { font-size: 0.9rem; color: var(--text-muted); }

/* ---- Steps Section ---- */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  position: relative;
}
.step-item {
  text-align: center;
  padding: 32px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  position: relative;
}
.step-number {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  font-size: 1.3rem;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  box-shadow: 0 4px 14px rgba(255,107,0,0.4);
}
.step-item h3 { margin-bottom: 8px; font-size: 1rem; }
.step-item p { font-size: 0.875rem; margin-bottom: 0; }

/* ---- FAQ Section ---- */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color var(--transition);
}
.faq-item.active { border-color: rgba(255,107,0,0.4); }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-primary);
  gap: 16px;
  user-select: none;
}
.faq-question:hover { color: var(--gold); }
.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(255,107,0,0.1);
  border: 1px solid rgba(255,107,0,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition);
  font-size: 1.2rem;
  color: var(--primary);
}
.faq-item.active .faq-icon {
  background: var(--primary);
  color: #fff;
  transform: rotate(45deg);
}
.faq-answer {
  display: none;
  padding: 0 24px 20px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}
.faq-answer.open { display: block; }

/* ---- CTA Section ---- */
.cta-section {
  background: linear-gradient(135deg, rgba(255,107,0,0.12), rgba(255,215,0,0.06));
  border-top: 1px solid rgba(255,107,0,0.2);
  border-bottom: 1px solid rgba(255,107,0,0.2);
  text-align: center;
  padding: 80px 0;
}
.cta-section h2 { margin-bottom: 16px; }
.cta-section p { margin-bottom: 32px; max-width: 560px; margin-left: auto; margin-right: auto; }
.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ---- Breadcrumb ---- */
.breadcrumb-section {
  padding: 16px 0;
  background: var(--bg-mid);
  border-bottom: 1px solid var(--border-color);
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--gold); }
.breadcrumb .sep { color: var(--text-muted); }
.breadcrumb .current { color: var(--text-secondary); }

/* ---- Page Hero ---- */
.page-hero {
  padding: 60px 0 48px;
  background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-mid) 100%);
  border-bottom: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255,107,0,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.page-hero h1 { margin-bottom: 12px; }
.page-hero p { max-width: 600px; }

/* ---- Table ---- */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
}
.comparison-table th {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  padding: 16px 20px;
  text-align: left;
  font-weight: 700;
  font-size: 0.9rem;
}
.comparison-table td {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.9rem;
  color: var(--text-secondary);
}
.comparison-table tr:last-child td { border-bottom: none; }
.comparison-table tr:hover td { background: rgba(255,255,255,0.03); }
.check { color: var(--accent-green); font-weight: 700; }
.cross { color: #ff4444; }

/* ---- Promotion Cards ---- */
.promo-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
}
.promo-card:hover {
  border-color: var(--gold);
  transform: translateY(-4px);
  box-shadow: var(--shadow-gold);
}
.promo-card-header {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  padding: 24px;
  text-align: center;
  position: relative;
}
.promo-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--gold);
  color: #000;
  font-size: 0.7rem;
  font-weight: 800;
  padding: 3px 10px;
  border-radius: 20px;
  text-transform: uppercase;
}
.promo-amount {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--gold);
  line-height: 1;
}
.promo-title { font-size: 1rem; color: rgba(255,255,255,0.9); margin-top: 6px; }
.promo-card-body { padding: 24px; }
.promo-card-body ul { margin-bottom: 20px; }
.promo-card-body ul li {
  padding: 6px 0;
  font-size: 0.9rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.promo-card-body ul li::before {
  content: '✓';
  color: var(--accent-green);
  font-weight: 700;
  flex-shrink: 0;
}

/* ---- Contact Form ---- */
.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 40px;
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  background: var(--bg-dark);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: var(--font-stack);
  transition: border-color var(--transition);
  outline: none;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(255,107,0,0.1);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-error {
  font-size: 0.8rem;
  color: #ff4444;
  margin-top: 4px;
  display: none;
}
.form-error.show { display: block; }
.form-success {
  background: rgba(0,204,85,0.1);
  border: 1px solid rgba(0,204,85,0.3);
  border-radius: var(--radius-sm);
  padding: 16px;
  color: var(--accent-green);
  font-size: 0.9rem;
  display: none;
  margin-top: 16px;
}
.form-success.show { display: block; }

/* ---- Policy Pages ---- */
.policy-content {
  max-width: 860px;
  margin: 0 auto;
}
.policy-content h2 {
  font-size: 1.4rem;
  margin-top: 40px;
  margin-bottom: 16px;
  color: var(--gold);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
}
.policy-content h3 {
  font-size: 1.1rem;
  margin-top: 24px;
  margin-bottom: 12px;
  color: var(--text-primary);
}
.policy-content p { margin-bottom: 16px; }
.policy-content ul {
  list-style: disc;
  padding-left: 24px;
  margin-bottom: 16px;
}
.policy-content ul li {
  color: var(--text-secondary);
  margin-bottom: 8px;
  font-size: 0.95rem;
}
.policy-content ol {
  list-style: decimal;
  padding-left: 24px;
  margin-bottom: 16px;
}
.policy-content ol li {
  color: var(--text-secondary);
  margin-bottom: 8px;
  font-size: 0.95rem;
}
.policy-toc {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 40px;
}
.policy-toc h3 { margin-bottom: 12px; font-size: 1rem; }
.policy-toc ol { list-style: decimal; padding-left: 20px; }
.policy-toc ol li { margin-bottom: 6px; }
.policy-toc ol li a { color: var(--primary); font-size: 0.9rem; }
.policy-toc ol li a:hover { color: var(--gold); }

/* ---- YouTube Video ---- */
.video-section { padding: 60px 0; }
.video-wrapper {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-card);
}
.video-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}
.video-container { max-width: 860px; margin: 0 auto; }
.video-caption { text-align: center; margin-top: 16px; font-size: 0.9rem; color: var(--text-muted); }

/* ---- Tabs ---- */
.tabs-nav {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 32px;
  flex-wrap: wrap;
}
.tab-btn {
  padding: 12px 24px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font-stack);
  margin-bottom: -1px;
}
.tab-btn:hover { color: var(--text-primary); }
.tab-btn.active {
  color: var(--gold);
  border-bottom-color: var(--gold);
}
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ---- Info Box ---- */
.info-box {
  background: rgba(255,107,0,0.08);
  border: 1px solid rgba(255,107,0,0.25);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  margin: 24px 0;
}
.info-box p { margin-bottom: 0; font-size: 0.9rem; }

.warning-box {
  background: rgba(255,215,0,0.06);
  border: 1px solid rgba(255,215,0,0.2);
  border-left: 4px solid var(--gold);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  margin: 24px 0;
}
.warning-box p { margin-bottom: 0; font-size: 0.9rem; color: var(--gold); }

/* ---- Bullet List ---- */
.bullet-list { margin: 20px 0; }
.bullet-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  font-size: 0.95rem;
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.bullet-list li:last-child { border-bottom: none; }
.bullet-list li::before {
  content: '▸';
  color: var(--primary);
  flex-shrink: 0;
  margin-top: 2px;
}

/* ---- Icon List ---- */
.icon-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }
.icon-list-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  color: var(--text-secondary);
}
.icon-list-item .icon { font-size: 1.3rem; flex-shrink: 0; }

/* ---- Two Column Layout ---- */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.two-col.reverse { direction: rtl; }
.two-col.reverse > * { direction: ltr; }

/* ---- Long Content Section ---- */
.long-content { max-width: 900px; }
.long-content h2 {
  font-size: 1.5rem;
  margin-top: 48px;
  margin-bottom: 16px;
  color: var(--gold);
}
.long-content h3 {
  font-size: 1.15rem;
  margin-top: 28px;
  margin-bottom: 12px;
  color: var(--primary-light);
}
.long-content p { margin-bottom: 16px; line-height: 1.8; }
.long-content ul {
  list-style: none;
  margin-bottom: 20px;
}
.long-content ul li {
  padding: 6px 0 6px 20px;
  position: relative;
  color: var(--text-secondary);
  font-size: 0.95rem;
}
.long-content ul li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--primary);
}

/* ---- Back to Top ---- */
#back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
  z-index: 999;
  box-shadow: 0 4px 14px rgba(255,107,0,0.4);
}
#back-to-top.visible {
  opacity: 1;
  visibility: visible;
}
#back-to-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(255,107,0,0.5);
}

/* ---- Footer ---- */
#site-footer {
  background: var(--bg-mid);
  border-top: 1px solid var(--border-color);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border-color);
}
.footer-brand .site-logo { margin-bottom: 16px; }
.footer-brand p { font-size: 0.875rem; color: var(--text-muted); line-height: 1.7; }
.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.footer-links { display: flex; flex-direction: column; gap: 8px; }
.footer-links a {
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--gold); }

.footer-contact { display: flex; flex-direction: column; gap: 10px; }
.footer-contact-item {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.5;
}
.footer-contact-item strong {
  display: block;
  color: var(--text-secondary);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 2px;
}

.footer-bottom {
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom p { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 0; }
.footer-bottom-links { display: flex; gap: 16px; }
.footer-bottom-links a { font-size: 0.8rem; color: var(--text-muted); }
.footer-bottom-links a:hover { color: var(--gold); }

/* ---- 404 Page ---- */
.error-page {
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 20px;
}
.error-code {
  font-size: clamp(6rem, 15vw, 10rem);
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(135deg, var(--primary), var(--gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
}
.error-page h2 { margin-bottom: 16px; }
.error-page p { margin-bottom: 32px; max-width: 480px; margin-left: auto; margin-right: auto; }
.error-links { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-box { border-right: none; border-bottom: 1px solid var(--border-color); }
  .stat-box:nth-child(odd) { border-right: 1px solid var(--border-color); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  :root { --header-height: 64px; }

  .menu-toggle { display: flex; }

  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: rgba(10,10,26,0.98);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 20px;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
    z-index: 999;
  }
  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    width: 100%;
  }
  .nav-list a { width: 100%; padding: 12px 16px; }

  .header-cta { gap: 8px; }
  .btn { padding: 8px 14px; font-size: 0.8rem; }

  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .two-col { grid-template-columns: 1fr; gap: 32px; }
  .two-col.reverse { direction: ltr; }

  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-box { border-right: none; border-bottom: 1px solid var(--border-color); }
  .stat-box:nth-child(odd) { border-right: 1px solid var(--border-color); }

  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }

  .section { padding: 56px 0; }
  .hero-section { padding: 48px 0 40px; }
  .hero-cta { flex-direction: column; }
  .hero-stats { gap: 20px; }

  .contact-form { padding: 24px; }
  .home-banner img, .home-banner svg { max-height: 280px; }

  #back-to-top { bottom: 20px; right: 20px; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .stat-box { border-right: none; }
  .stat-box:nth-child(odd) { border-right: none; }
  .hero-stats { flex-direction: column; gap: 16px; }
  .cta-buttons { flex-direction: column; align-items: center; }
  .tabs-nav { gap: 0; }
  .tab-btn { padding: 10px 14px; font-size: 0.8rem; }
}