/* 折叠屏百科 - 全站样式 */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; color: #333; line-height: 1.8; background: #f5f5f5; }

/* 导航 */
.nav { background: #1a1a2e; padding: 15px 0; position: sticky; top: 0; z-index: 100; }
.nav-inner { max-width: 1200px; margin: 0 auto; padding: 0 20px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; }
.logo { color: #00d2ff; font-size: 24px; font-weight: bold; text-decoration: none; }
.logo span { color: #fff; }
.nav-links { display: flex; flex-wrap: wrap; gap: 5px; }
.nav-links a { color: #ccc; text-decoration: none; margin-left: 20px; font-size: 14px; transition: color 0.3s; }
.nav-links a:hover { color: #00d2ff; }

/* 文章容器 */
.container { max-width: 800px; margin: 0 auto; padding: 20px; }
.breadcrumb { font-size: 13px; color: #999; margin-bottom: 20px; }
.breadcrumb a { color: #667eea; text-decoration: none; }

/* Hero区 */
.hero { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; padding: 45px 30px; text-align: center; border-radius: 16px; margin-bottom: 30px; }
.hero h1 { font-size: 24px; margin-bottom: 10px; }
.hero p { font-size: 14px; opacity: 0.9; }

/* 文章主体 */
.article { background: white; border-radius: 16px; padding: 30px; box-shadow: 0 2px 20px rgba(0,0,0,0.05); max-width: 800px; margin: 0 auto; }
.article-meta { font-size: 13px; color: #999; margin-bottom: 25px; padding-bottom: 15px; border-bottom: 1px solid #f0f0f0; }
h2 { font-size: 20px; color: #333; margin: 35px 0 15px; padding-left: 14px; border-left: 4px solid #667eea; }
h3 { font-size: 17px; color: #333; margin: 20px 0 10px; }
p { margin-bottom: 15px; font-size: 15px; }
ul, ol { margin: 10px 0 15px 20px; }
li { margin-bottom: 10px; font-size: 15px; }
strong { color: #1a1a2e; }
blockquote { background: #f8f9ff; border-left: 4px solid #667eea; border-radius: 0 12px 12px 0; padding: 16px 20px; margin: 20px 0; font-style: italic; color: #555; }

/* 信息框 */
.tip-box { background: #fff3e0; border-left: 4px solid #f39c12; border-radius: 0 12px 12px 0; padding: 16px; margin: 20px 0; font-size: 14px; }
.tip-box strong { color: #e65100; }
.warning-box { background: #fce4ec; border-left: 4px solid #e53935; border-radius: 0 12px 12px 0; padding: 16px; margin: 20px 0; font-size: 14px; }
.warning-box strong { color: #c62828; }
.info-box { background: #e3f2fd; border-left: 4px solid #2196f3; border-radius: 0 12px 12px 0; padding: 16px; margin: 20px 0; font-size: 14px; }
.info-box strong { color: #1565c0; }
.success-box { background: #e8f5e9; border-left: 4px solid #4caf50; border-radius: 0 12px 12px 0; padding: 16px; margin: 20px 0; font-size: 14px; }
.success-box strong { color: #2e7d32; }

/* 表格 */
table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 14px; }
th, td { padding: 12px; border: 1px solid #e0e0e0; text-align: left; }
th { background: #f5f5f5; font-weight: 600; }
tr:hover { background: #fafafa; }

/* CTA */
.cta-box { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); border-radius: 16px; padding: 24px; margin: 30px 0; color: white; text-align: center; }
.cta-box p { color: white; }
.cta-btn { display: inline-block; padding: 12px 24px; background: white; color: #667eea; border-radius: 24px; text-decoration: none; font-weight: 600; margin-top: 12px; }

/* 相关阅读 */
.related { margin-top: 30px; padding: 20px; background: #f8f9fa; border-radius: 12px; }
.related h3 { font-size: 16px; margin-bottom: 12px; }
.related a { color: #667eea; text-decoration: none; display: block; padding: 6px 0; }

/* 页脚 */
.footer { background: #1a1a2e; color: #aaa; padding: 40px 20px; text-align: center; }
.footer a { color: #00d2ff; text-decoration: none; }
.footer-links { margin-bottom: 15px; }
.footer-links a { margin: 0 15px; }

/* 响应式 */
@media (max-width: 768px) {
    .hero { padding: 35px 20px; }
    .hero h1 { font-size: 20px; }
    .article { padding: 20px; }
    .nav-links a { margin-left: 10px; font-size: 13px; }
}
@media (max-width: 600px) {
    .hero h1 { font-size: 18px; }
}