/* Reset & Base */ *{box-sizing:border-box;}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;background:#f5f5f5;color:#333;line-height:1.6;}a{color:#0066cc;text-decoration:none;transition:color 0.2s;}a:hover{color:#004499;text-decoration:underline;}h1,h2,h3{margin:0 0 1rem 0;line-height:1.2;}h1{font-size:2em;}h2{font-size:1.5em;}h3{font-size:1.2em;}p{margin:0 0 1rem 0;}/* Nav */ nav{background:#fff;border-bottom:1px solid #ddd;padding:1rem;box-shadow:0 2px 4px rgba(0,0,0,0.05);}nav ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:nowrap;justify-content:space-between;align-items:center;}nav ul li{flex:1 1 0;min-width:0;text-align:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;padding:0 0.5rem;}nav a{color:#333;font-weight:500;}nav a:hover{color:#1890ff;text-decoration:none;}/* Breadcrumb */ .breadcrumb{font-size:0.9em;color:#666;padding:0.5rem 1rem;}.breadcrumb a{color:#0066cc;}.breadcrumb span{color:#999;}/* Cards */ .card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.5rem;}.card{padding:1.5rem;background:#fff;border-radius:8px;box-shadow:0 2px 8px rgba(0,0,0,0.08);transition:transform 0.2s,box-shadow 0.2s;}.card:hover{transform:translateY(-4px);box-shadow:0 4px 16px rgba(0,0,0,0.12);}.card h3{margin:0 0 0.5rem 0;font-size:1.1em;}.card .meta{font-size:0.85em;color:#999;margin:0.5rem 0;}.card .summary{font-size:0.9em;color:#666;margin-top:0.5rem;}.card-list .card-item{padding:1rem;margin-bottom:1rem;background:#fff;border-radius:4px;border-left:3px solid #52c41a;}.card-item h3{margin:0 0 0.5rem 0;font-size:1em;}/* List */ .list-item{position:relative;}.list-item .rank{position:absolute;top:1rem;right:1rem;font-size:1.5em;font-weight:bold;color:#faad14;}.list-item h2{font-size:1.3em;margin:0 0 0.5rem 0;}.list-item .tags{color:#888;}/* Responsive */ @media (max-width:768px){h1{font-size:1.5em;}h2{font-size:1.2em;}nav ul li{font-size:0.85em;padding:0 0.25rem;}.card-grid{grid-template-columns:1fr;gap:1rem;}}