:root {
  --bg: #0a0a0f;
  --card: #12121a;
  --card-hover: #1a1a26;
  --primary: #2aabee;
  --primary-dark: #1e96d1;
  --accent: #ff6b35;
  --accent2: #00d4aa;
  --text: #f0f0f5;
  --text-muted: #9a9ab0;
  --border: rgba(255, 255, 255, 0.08);
  --glow: 0 0 40px rgba(42, 171, 238, 0.25);
}

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

body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* 背景装饰 */
.bg-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(42, 171, 238, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(42, 171, 238, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

.bg-glow {
  position: fixed;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.15;
  pointer-events: none;
  z-index: 0;
}

.bg-glow-1 {
  top: -200px;
  left: -100px;
  background: var(--primary);
}

.bg-glow-2 {
  bottom: -200px;
  right: -100px;
  background: var(--accent);
}

.container {
  position: relative;
  z-index: 1;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
header {
  text-align: center;
  padding: 60px 0 40px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(42, 171, 238, 0.15);
  border: 1px solid rgba(42, 171, 238, 0.3);
  color: var(--primary);
  font-size: 13px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 50px;
  margin-bottom: 24px;
  letter-spacing: 0.5px;
}

.badge::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--accent2);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

h1 {
  font-size: clamp(2rem, 6vw, 3.2rem);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 16px;
  background: linear-gradient(135deg, #fff 0%, #a0d8ff 50%, #2aabee 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 12px;
}

.tagline {
  font-size: 1.05rem;
  color: var(--accent);
  font-weight: 700;
  margin-top: 8px;
}

/* Stats */
.stats {
  display: flex;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
  margin: 36px 0 48px;
}

.stat {
  text-align: center;
}

.stat-num {
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--primary);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* Bot Cards */
.bots {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  margin-bottom: 56px;
}

.bot-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px 28px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.bot-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent2));
  opacity: 0;
  transition: opacity 0.3s;
}

.bot-card:hover {
  background: var(--card-hover);
  border-color: rgba(42, 171, 238, 0.3);
  transform: translateY(-4px);
  box-shadow: var(--glow);
}

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

.bot-icon {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  margin-bottom: 20px;
  background: linear-gradient(135deg, rgba(42, 171, 238, 0.2), rgba(0, 212, 170, 0.15));
  border: 1px solid rgba(42, 171, 238, 0.25);
}

.bot-name {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.bot-handle {
  font-size: 0.9rem;
  color: var(--primary);
  font-weight: 500;
  margin-bottom: 14px;
}

.bot-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 24px;
  line-height: 1.7;
}

.bot-users {
  font-size: 0.85rem;
  color: var(--accent2);
  margin-bottom: 20px;
  font-weight: 500;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 14px 24px;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.25s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, #2aabee, #1e96d1);
  color: #fff;
  box-shadow: 0 4px 20px rgba(42, 171, 238, 0.35);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #3bb8f5, #2aabee);
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(42, 171, 238, 0.45);
}

.btn-secondary {
  background: linear-gradient(135deg, #00d4aa, #00b894);
  color: #0a0a0f;
  box-shadow: 0 4px 20px rgba(0, 212, 170, 0.3);
}

.btn-secondary:hover {
  background: linear-gradient(135deg, #1ae0b8, #00d4aa);
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(0, 212, 170, 0.4);
}

.btn svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* Features */
.section-title {
  text-align: center;
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 32px;
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 56px;
}

.feature {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px 18px;
  text-align: center;
  transition: border-color 0.25s;
}

.feature:hover {
  border-color: rgba(42, 171, 238, 0.3);
}

.feature-icon {
  font-size: 28px;
  margin-bottom: 12px;
}

.feature-title {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 6px;
}

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

/* How to use */
.howto {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 36px 28px;
  margin-bottom: 56px;
}

.steps {
  display: grid;
  gap: 20px;
  counter-reset: step;
}

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

.step-num {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent2));
  color: #fff;
  font-weight: 700;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step-content h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.step-content p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Keywords */
.keywords {
  text-align: center;
  margin-bottom: 56px;
}

.keyword-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 20px;
}

.keyword {
  background: rgba(42, 171, 238, 0.1);
  border: 1px solid rgba(42, 171, 238, 0.2);
  color: var(--text);
  padding: 8px 16px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  transition: all 0.2s;
}

.keyword:hover {
  background: rgba(42, 171, 238, 0.2);
  border-color: var(--primary);
  color: var(--primary);
}

/* CTA */
.cta {
  text-align: center;
  padding: 48px 24px;
  background: linear-gradient(135deg, rgba(42, 171, 238, 0.12), rgba(0, 212, 170, 0.08));
  border: 1px solid rgba(42, 171, 238, 0.2);
  border-radius: 24px;
  margin-bottom: 48px;
}

.cta h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.cta p {
  color: var(--text-muted);
  margin-bottom: 28px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.cta-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}

.cta-btns .btn {
  width: auto;
  min-width: 200px;
  padding: 16px 28px;
}

/* Footer */
footer {
  text-align: center;
  padding: 32px 0 48px;
  color: var(--text-muted);
  font-size: 0.85rem;
}

footer a {
  color: var(--primary);
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

/* Responsive */
@media (max-width: 600px) {
  header {
    padding: 40px 0 28px;
  }

  .stats {
    gap: 20px;
  }

  .stat-num {
    font-size: 1.4rem;
  }

  .bot-card {
    padding: 24px 20px;
  }

  .howto {
    padding: 28px 20px;
  }

  .cta {
    padding: 36px 20px;
  }

  .cta-btns .btn {
    width: 100%;
  }
}