/* aibrewlab.com - 深色科技风 */
:root {
  --primary-bg: #0a0e27;
  --secondary-bg: #1a1f3a;
  --card-bg: #16213e;
  --text-primary: #ffffff;
  --text-secondary: #a0aec0;
  --accent-green: #00ff88;
  --accent-purple: #8b5cf6;
  --accent-blue: #3b82f6;
  --border-color: #2d3748;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--primary-bg);
  color: var(--text-primary);
  line-height: 1.6;
}

/* 导航栏 */
header {
  background: rgba(10, 14, 39, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
}

nav {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  background: linear-gradient(135deg, var(--accent-green), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-primary);
  text-decoration: none;
  transition: color 0.3s;
}

.nav-links a:hover {
  color: var(--accent-green);
}

/* Hero区域 */
.hero {
  padding: 150px 2rem 80px;
  text-align: center;
  background: linear-gradient(135deg, var(--primary-bg), var(--secondary-bg));
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--accent-green), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 2rem;
}

.btn {
  display: inline-block;
  padding: 12px 30px;
  border-radius: 30px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-green), var(--accent-purple));
  color: #000;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(0, 255, 136, 0.3);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--accent-green);
  color: var(--accent-green);
  margin-left: 1rem;
}

.btn-outline:hover {
  background: var(--accent-green);
  color: #000;
}

/* 主要内容区域 */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

section {
  padding: 60px 0;
}

.section-title {
  font-size: 2rem;
  text-align: center;
  margin-bottom: 2rem;
  color: var(--accent-green);
}

/* 卡片网格 */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.card {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: 15px;
  border: 1px solid var(--border-color);
  transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(139, 92, 246, 0.2);
  border-color: var(--accent-purple);
}

.card h3 {
  color: var(--accent-green);
  margin-bottom: 1rem;
}

.card p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

/* 功能列表 */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.feature {
  text-align: center;
  padding: 1.5rem;
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.feature h4 {
  color: var(--accent-green);
  margin-bottom: 0.5rem;
}

/* 友情链接 */
.friend-links {
  background: var(--secondary-bg);
  padding: 3rem 2rem;
  margin-top: 3rem;
}

.friend-links h3 {
  text-align: center;
  color: var(--accent-green);
  margin-bottom: 1.5rem;
}

.friend-links-grid {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.friend-links a {
  color: var(--text-secondary);
  text-decoration: none;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 5px;
  transition: all 0.3s;
}

.friend-links a:hover {
  color: var(--accent-green);
  border-color: var(--accent-green);
}

/* Footer */
footer {
  background: var(--secondary-bg);
  padding: 2rem;
  text-align: center;
  border-top: 1px solid var(--border-color);
}

footer p {
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

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

/* Prompt生成器样式 */
.prompt-generator {
  max-width: 800px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--accent-green);
  font-weight: 600;
}

.form-control {
  width: 100%;
  padding: 12px 15px;
  background: var(--card-bg);
  border: 2px solid var(--border-color);
  border-radius: 10px;
  color: var(--text-primary);
  font-size: 1rem;
  transition: border-color 0.3s;
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-green);
}

.form-select {
  width: 100%;
  padding: 12px 15px;
  background: var(--card-bg);
  border: 2px solid var(--border-color);
  border-radius: 10px;
  color: var(--text-primary);
  font-size: 1rem;
  cursor: pointer;
}

.output-area {
  background: var(--card-bg);
  border: 2px solid var(--border-color);
  border-radius: 10px;
  padding: 1.5rem;
  margin-top: 1.5rem;
  min-height: 200px;
}

.output-area h4 {
  color: var(--accent-green);
  margin-bottom: 1rem;
}

.output-content {
  background: var(--primary-bg);
  padding: 1rem;
  border-radius: 5px;
  font-family: monospace;
  white-space: pre-wrap;
  color: var(--text-primary);
}

/* 响应式 */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2rem;
  }
  
  .nav-links {
    gap: 1rem;
  }
  
  .btn-outline {
    margin-left: 0;
    margin-top: 0.5rem;
  }
  
  .grid {
    grid-template-columns: 1fr;
  }
}

/* Cookie Consent Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: #1a1a2e;
  color: white;
  padding: 1rem;
  z-index: 9999;
  box-shadow: 0 -2px 10px rgba(0,0,0,0.2);
}
.cookie-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.cookie-text {
  flex: 1;
  min-width: 250px;
}
.cookie-actions {
  display: flex;
  gap: 0.5rem;
}
.cookie-link {
  color: var(--accent-green);
  text-decoration: underline;
  margin-right: 0.5rem;
}
.cookie-accept {
  background: var(--accent-green);
  color: white;
  border: none;
  padding: 0.5rem 1.5rem;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 600;
}
.cookie-accept:hover {
  background: #2ecc71;
}

@media (max-width: 600px) {
  .cookie-content {
    flex-direction: column;
    text-align: center;
  }
}