:root{--text-color-primary:#2196f3;--text-color-secondary:#10b981;--text-color-accent:#03a9f4;--text-color-muted:#555;--border-color:#2196f31a;--background-color:#f8f9fa;--background-color-primary:#fff;--text-color:#333}*{box-sizing:border-box;margin:0;padding:0}body{background:linear-gradient(135deg,#f5f7fa,#e4e8f0);color:#333;color:var(--text-color);font-family:Segoe UI,Microsoft JhengHei,sans-serif;margin:auto;min-height:100vh}.container{gap:1rem;margin:0 auto;max-width:1200px;padding:1rem}@media (max-width:768px){.container{padding:.5rem}}h1{color:#2196f3;color:var(--text-color-primary);font-size:2.5rem;margin-bottom:2rem;position:relative;text-align:center;text-shadow:2px 2px 4px #0000001a}h1:after{background:linear-gradient(90deg,#2196f3,#03a9f4);background:linear-gradient(90deg,var(--text-color-primary),var(--text-color-accent));border-radius:2px;bottom:-.5rem;content:"";height:4px;left:50%;position:absolute;transform:translateX(-50%);width:100px}.card{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);border:1px solid #2196f31a;border:1px solid var(--border-color);border-radius:1rem;box-shadow:0 8px 32px #1f268726}.card,select{background:#fff;background:var(--background-color-primary)}select{appearance:none;background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232196F3' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");background-position:right 15px center;background-repeat:no-repeat;background-size:15px;border:2px solid #2196f31a;border:2px solid var(--border-color);border-radius:.5rem;color:#333;color:var(--text-color);cursor:pointer;padding:.75em 3em .75em 1.5em;transition:all .3s ease}select:hover{box-shadow:0 0 0 3px #2196f31a}select:focus,select:hover{border-color:#2196f3;border-color:var(--text-color-primary)}select:focus{animation:pulse 1.5s infinite;box-shadow:0 0 0 3px #2196f333;outline:none}@keyframes pulse{0%{box-shadow:0 0 0 0 #2196f366}70%{box-shadow:0 0 0 10px #2196f300}to{box-shadow:0 0 0 0 #2196f300}}.btn,.btn-primary,button{border:none;cursor:pointer;text-decoration:none}.btn-primary:hover,.btn:hover,button:hover{filter:brightness(1.2);transform:translateY(-2px);transition:all .3s ease}.btn-primary{background-color:#2196f3;background-color:var(--text-color-primary);box-shadow:0 2px 4px #0000004d;color:#fff;font-weight:700}.loading{color:#555;color:var(--text-color-muted)}.error,.loading{align-items:center;display:flex;font-size:1.1rem;justify-content:center;min-height:200px}.error{color:#e74c3c;padding:1rem;text-align:center}
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