:root{--primary-color: #0070C0;--text-color: #333;--border-color: #ddd;--background-light: #f5f5f5;--success-color: #22c55e;--error-color: #ef4444;--warning-color: #f59e0b}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;line-height:1.6;color:var(--text-color);background-color:var(--background-light);min-height:100vh;display:flex;flex-direction:column}.container{max-width:800px;margin:0 auto;padding:2rem;width:100%}header{text-align:center;margin-bottom:3rem}h1{font-size:2.5rem;color:var(--primary-color);margin-bottom:.5rem}.subtitle{font-size:1.1rem;color:#666}main{background:#fff;border-radius:8px;padding:2rem;box-shadow:0 1px 3px #0000001a}.upload-area{border:2px dashed var(--border-color);border-radius:8px;padding:3rem 2rem;text-align:center;transition:all .3s ease;cursor:pointer}.upload-area:hover{border-color:var(--primary-color);background-color:#f8faff}.upload-area.drag-over{border-color:var(--primary-color);background-color:#e6f2ff}.upload-content{display:flex;flex-direction:column;align-items:center;gap:1rem}.upload-icon{width:64px;height:64px;color:var(--primary-color);margin-bottom:1rem}.upload-text{font-size:1.1rem;font-weight:500;color:var(--text-color)}.upload-hint{font-size:.9rem;color:#666}.status-area{margin-top:2rem;padding:1.5rem;border-radius:8px;border:1px solid var(--border-color)}.status-content{display:flex;align-items:flex-start;gap:1rem}.status-icon{flex-shrink:0}.status-icon svg{width:24px;height:24px}.status-message{flex:1;font-size:.95rem}.status-area.success{background-color:#f0fdf4;border-color:var(--success-color)}.status-area.success .status-icon{color:var(--success-color)}.status-area.error{background-color:#fef2f2;border-color:var(--error-color)}.status-area.error .status-icon{color:var(--error-color)}.status-area.info{background-color:#eff6ff;border-color:var(--primary-color)}.status-area.info .status-icon{color:var(--primary-color)}.status-area.warning{background-color:#fffbeb;border-color:var(--warning-color)}.status-area.warning .status-icon{color:var(--warning-color)}.info-section{margin-top:3rem;padding-top:2rem;border-top:1px solid var(--border-color)}.info-section h2{font-size:1.5rem;color:var(--primary-color);margin-bottom:1rem}.info-section ol{margin-left:1.5rem;margin-bottom:1.5rem}.info-section li{margin-bottom:.5rem}.privacy-note{font-size:.9rem;color:#666;font-style:italic}footer{text-align:center;padding:2rem;color:#666;font-size:.9rem}.action-buttons{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:.75rem;margin-top:1.5rem}.btn{padding:.75rem 1.5rem;border:2px solid var(--primary-color);border-radius:4px;font-size:.95rem;font-weight:500;cursor:pointer;transition:all .2s ease;background-color:#fff;color:var(--primary-color)}.btn:not(:disabled):hover{background-color:var(--primary-color);color:#fff}.btn:disabled{opacity:.4;cursor:not-allowed;border-color:#ccc;color:#999}.spinner{display:inline-block;width:20px;height:20px;border:3px solid rgba(0,112,192,.3);border-radius:50%;border-top-color:var(--primary-color);animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width: 600px){.container{padding:1rem}h1{font-size:2rem}main{padding:1.5rem}.upload-area{padding:2rem 1rem}}