:root {
  --bg-primary: #0a0e1a;
  --bg-secondary: #121829;
  --bg-tertiary: #1a2238;
  --accent-gold: #ffb300;
  --accent-emerald: #00e676;
  --accent-blue: #3b82f6;
  --accent-purple: #8b5cf6;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 179, 0, 0.3);
  --glass-bg: rgba(18, 24, 41, 0.75);
  --glass-border: rgba(255, 255, 255, 0.06);
  --font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1100px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
}

body {
  min-height: 100vh;
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

/* Background Glows */
.bg-glow-1 {
  position: fixed;
  top: -10%;
  right: -10%;
  width: 50vw;
  height: 50vw;
  background: radial-gradient(circle, rgba(255, 179, 0, 0.08) 0%, rgba(10, 14, 26, 0) 70%);
  pointer-events: none;
  z-index: -1;
}

.bg-glow-2 {
  position: fixed;
  bottom: -10%;
  left: -10%;
  width: 50vw;
  height: 50vw;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.08) 0%, rgba(10, 14, 26, 0) 70%);
  pointer-events: none;
  z-index: -1;
}

/* Header & Nav */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: var(--transition-normal);
}

.header-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 10px;
  letter-spacing: -0.01em;
}

.logo-dot {
  width: 10px;
  height: 10px;
  background-color: var(--accent-gold);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-gold);
}

nav {
  display: flex;
  gap: 20px;
}

nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition-fast);
}

nav a:hover {
  color: var(--accent-gold);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Buttons */
.cta-btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background: linear-gradient(135deg, var(--accent-gold) 0%, #ff8000 100%);
  color: #06090e;
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: 8px;
  text-decoration: none;
  transition: var(--transition-normal);
  box-shadow: 0 4px 15px rgba(255, 179, 0, 0.2);
  border: none;
  cursor: pointer;
}

.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 179, 0, 0.35);
}

.secondary-btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 8px;
  text-decoration: none;
  border: 1px solid var(--border-color);
  transition: var(--transition-normal);
}

.secondary-btn:hover {
  border-color: var(--accent-gold);
  color: var(--accent-gold);
  transform: translateY(-2px);
}

/* Hero Section */
.hero {
  padding: 8rem 1.5rem 4rem 1.5rem;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.hero-tag {
  display: inline-block;
  padding: 0.35rem 1rem;
  background: rgba(255, 179, 0, 0.1);
  border: 1px solid rgba(255, 179, 0, 0.25);
  color: var(--accent-gold);
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: 2.3rem;
  font-weight: 800;
  line-height: 1.4;
  margin-bottom: 1.5rem;
  background: linear-gradient(180deg, #ffffff 0%, #cbd5e1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  line-height: 1.8;
}

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

/* Main Content Cards */
main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem 4rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.section-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2.5rem;
  transition: var(--transition-normal);
}

.section-card:hover {
  border-color: var(--border-hover);
}

h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
  position: relative;
  padding-right: 1rem;
}

h2::before {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 1.2em;
  background-color: var(--accent-gold);
  border-radius: 2px;
}

p {
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  font-size: 1.05rem;
}

p:last-child {
  margin-bottom: 0;
}

/* Principles Grid */
.principles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.principle-card {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.75rem;
  position: relative;
  transition: var(--transition-normal);
}

.principle-card:hover {
  border-color: var(--accent-gold);
  transform: translateY(-4px);
}

.principle-card.full-width {
  grid-column: 1 / -1;
}

.principle-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: rgba(255, 179, 0, 0.15);
  color: var(--accent-gold);
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.principle-card h3 {
  font-size: 1.25rem;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.principle-card p {
  font-size: 0.95rem;
  margin-bottom: 0;
}

/* Action Steps */
.action-steps {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-top: 1.75rem;
}

.step-item {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  transition: var(--transition-normal);
}

.step-item:hover {
  border-color: var(--accent-gold);
}

.step-num {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--accent-gold) 0%, #ff8000 100%);
  color: #06090e;
  font-weight: 800;
  font-size: 1.2rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.step-content h4 {
  font-size: 1.1rem;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.step-content p {
  font-size: 0.95rem;
  margin-bottom: 0;
}

/* Images */
.image-wrapper {
  margin-top: 2rem;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  background-color: var(--bg-tertiary);
}

.image-container img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.image-caption {
  padding: 1rem 1.25rem;
  font-size: 0.9rem;
  color: var(--text-muted);
  text-align: center;
  background: rgba(18, 24, 41, 0.9);
  border-top: 1px solid var(--border-color);
}

/* FAQ Accordion Styling */
.faq-accordion {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  overflow: hidden;
  transition: var(--transition-normal);
}

.faq-item:hover {
  border-color: var(--accent-gold);
  box-shadow: 0 4px 12px rgba(255, 179, 0, 0.05);
}

.faq-question {
  width: 100%;
  padding: 1.25rem 1.5rem;
  background: none;
  border: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-family);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  text-align: left;
  gap: 16px;
}

.faq-icon {
  font-size: 0.8rem;
  transition: transform var(--transition-fast);
  color: var(--text-muted);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal) ease, padding var(--transition-normal) ease;
  padding: 0 1.5rem;
  background-color: var(--bg-secondary);
  border-top: 0 solid var(--border-color);
}

.faq-answer p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.25rem;
  margin-top: 1.25rem;
}

/* Open State */
.faq-item.active .faq-answer {
  border-top: 1px solid var(--border-color);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  color: var(--accent-gold);
}

/* CTA Block */
.cta-block {
  background: linear-gradient(135deg, rgba(255, 179, 0, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
  border: 1px solid rgba(255, 179, 0, 0.25);
  border-radius: 16px;
  padding: 3rem 2rem;
  text-align: center;
  margin-top: 1rem;
}

.cta-block h2 {
  font-size: 1.8rem;
  margin-bottom: 1rem;
}

.cta-block h2::before {
  display: none;
}

.cta-block p {
  max-width: 650px;
  margin: 0 auto 2rem auto;
}

/* Footer */
footer {
  background-color: #06090e;
  border-top: 1px solid var(--border-color);
  padding: 3rem 1.5rem;
  text-align: center;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition-fast);
}

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

.footer-disclaimer {
  max-width: 800px;
  margin: 0 auto;
  font-size: 0.85rem;
  line-height: 1.6;
}

/* Responsive */
@media (max-width: 768px) {
  .header-container {
    padding: 1rem;
  }

  nav {
    display: none;
  }

  .cta-btn-header {
    display: none;
  }

  .nav-toggle {
    display: block;
  }

  .hero {
    padding: 6rem 1rem 3rem 1rem;
  }

  .hero h1 {
    font-size: 1.7rem;
  }

  .section-card {
    padding: 1.5rem;
  }

  h2 {
    font-size: 1.35rem;
  }

  p {
    font-size: 0.95rem;
  }
}