*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}html{font-size:16px;-webkit-text-size-adjust:100%}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;line-height:1.6;color:#333;background-color:#f5f5f5;min-height:100vh}a{color:#0066cc;text-decoration:none;transition:color 0.2s ease}a:hover{color:#0052a3;text-decoration:underline}img{max-width:100%;height:auto;display:block}nav{background:#ffffff;border-bottom:1px solid #e0e0e0;position:sticky;top:0;z-index:1000;box-shadow:0 2px 4px rgba(0,0,0,0.05)}nav ul{display:flex;flex-wrap:nowrap;justify-content:space-between;align-items:center;list-style:none;max-width:1200px;margin:0 auto;padding:0}nav li{flex:1 1 0;min-width:0;text-align:center}nav a{display:block;padding:1rem 0.75rem;color:#333;font-weight:500;font-size:1rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:background-color 0.2s ease,color 0.2s ease}nav a:hover{background-color:#f0f0f0;color:#0066cc;text-decoration:none}@media (max-width:768px){nav ul{flex-wrap:nowrap;overflow-x:visible}nav li{flex:1 1 0;min-width:0}nav a{padding:0.75rem 0.35rem;font-size:0.85rem}}main{min-height:60vh}.breadcrumb{max-width:1200px;margin:1rem auto;padding:0 1rem;font-size:0.9rem;color:#666}.breadcrumb a{color:#0066cc}.breadcrumb a:hover{text-decoration:underline}.card{background:#ffffff;border-radius:8px;padding:1.5rem;box-shadow:0 2px 8px rgba(0,0,0,0.1);transition:transform 0.2s ease,box-shadow 0.2s ease}.card:hover{transform:translateY(-2px);box-shadow:0 4px 12px rgba(0,0,0,0.15)}.card h3{font-size:1.2rem;margin-bottom:0.75rem;color:#222}.card p{font-size:0.95rem;color:#666;line-height:1.7}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.5rem;margin-top:1.5rem}@media (max-width:768px){.grid{grid-template-columns:1fr;gap:1rem}}.tag{display:inline-block;padding:0.25rem 0.6rem;margin:0.25rem 0.25rem 0.25rem 0;background:#e8f4fd;color:#0066cc;border-radius:4px;font-size:0.85rem;font-weight:500}.tag.secondary{background:#f0f0f0;color:#666}.btn{display:inline-block;padding:0.75rem 1.5rem;background:#0066cc;color:#ffffff;border:none;border-radius:6px;font-size:1rem;font-weight:500;cursor:pointer;transition:background-color 0.2s ease,transform 0.1s ease;text-decoration:none}.btn:hover{background:#0052a3;transform:translateY(-1px);text-decoration:none;color:#ffffff}.btn:active{transform:translateY(0)}.btn.secondary{background:#666}.btn.secondary:hover{background:#555}.back-to-top{position:fixed;bottom:2rem;right:2rem;width:48px;height:48px;background:#0066cc;color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.5rem;cursor:pointer;opacity:0;visibility:hidden;transition:opacity 0.3s ease,visibility 0.3s ease,background-color 0.2s ease;box-shadow:0 4px 12px rgba(0,102,204,0.3);z-index:999}.back-to-top.visible{opacity:1;visibility:visible}.back-to-top:hover{background:#0052a3}footer{background:#333;color:#fff;text-align:center;padding:2rem 1rem;margin-top:4rem}footer p{margin:0.5rem 0;font-size:0.95rem}footer a{color:#8fb4ff}footer a:hover{color:#b3ccff}.ui-style-0{--primary-color:#ff5722;--secondary-color:#333}.ui-style-1{--primary-color:#ff6600;--secondary-color:#1a1a1a}.ui-style-2{--primary-color:#e91e63;--secondary-color:#424242}.ui-style-3{--primary-color:#d32f2f;--secondary-color:#616161}.ui-style-4{--primary-color:#c62828;--secondary-color:#757575}.ui-style-5{--primary-color:#b71c1c;--secondary-color:#212121;background-color:#1a1a1a;color:#f5f5f5}.ui-style-6{--primary-color:#1976d2;--secondary-color:#263238;background-color:#263238;color:#eceff1}.ui-style-7{--primary-color:#0288d1;--secondary-color:#37474f}.ui-style-8{--primary-color:#00c853;--secondary-color:#1b5e20}.ui-style-9{--primary-color:#304ffe;--secondary-color:#000}.ui-style-10{--primary-color:#00c75a;--secondary-color:#004d40}.ui-style-11{--primary-color:#0099ff;--secondary-color:#455a64}.ui-style-12{--primary-color:#ff6700;--secondary-color:#bf360c}.ui-style-13{--primary-color:#00a1d6;--secondary-color:#fb7299}.ui-style-14{--primary-color:#1a237e;--secondary-color:#004d40}.ui-style-5 a,.ui-style-6 a{color:#64b5f6}.ui-style-5 .card,.ui-style-6 .card{background:#2c2c2c;color:#e0e0e0}.ui-style-5 nav,.ui-style-6 nav{background:#1f1f1f;border-bottom-color:#444}.ui-style-5 nav a,.ui-style-6 nav a{color:#e0e0e0}.ui-style-5 nav a:hover,.ui-style-6 nav a:hover{background-color:#333;color:#64b5f6}@media (max-width:1024px){.grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:1.25rem}}@media (max-width:480px){body{font-size:15px}.card{padding:1rem}.card h3{font-size:1.1rem}.back-to-top{bottom:1rem;right:1rem;width:44px;height:44px}}