* { box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans', 'PingFang SC', 'Microsoft YaHei', sans-serif; margin: 0; color: #222; background: #f7f7f9; }
.site-header { padding: 24px; background: #fff; border-bottom: 1px solid #eaeaea; }
.site-header h1 { margin: 0; font-size: 22px; }
.site-header .desc { margin: 6px 0 0; color: #666; }
.toolbar { display: flex; gap: 8px; padding: 12px 24px; background: #fff; border-bottom: 1px solid #eee; }
.toolbar input, .toolbar select, .toolbar button { padding: 8px 10px; font-size: 14px; }
.layout { display: grid; grid-template-columns: 280px 1fr; gap: 0; }
.list { background: #fff; border-right: 1px solid #eee; min-height: calc(100vh - 140px); }
.list ul { list-style: none; margin: 0; padding: 0; }
.item { padding: 12px 16px; border-bottom: 1px dashed #eee; cursor: pointer; }
.item:hover { background: #f2f7ff; }
.item .meta { color: #999; font-size: 12px; margin-left: 6px; }
.content { padding: 24px; }
.content h1, .content h2, .content h3 { border-bottom: 1px solid #eee; padding-bottom: 6px; }
.content table { border-collapse: collapse; width: 100%; }
.content table th, .content table td { border: 1px solid #ddd; padding: 8px; }
.content img { max-width: 100%; height: auto; }
.error { color: #b00020; background: #fff4f4; padding: 10px; border: 1px solid #ffd7d7; }
.site-footer { padding: 10px 24px; color: #666; border-top: 1px solid #eee; background: #fff; }