#app{width:100%;min-height:100vh}*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color: #ff9500;--primary-dark: #ff6b00;--secondary-color: #667eea;--bg-color: #f8f9fa;--card-bg: #ffffff;--text-primary: #2c3e50;--text-secondary: #5a6c7d;--text-muted: #7f8c8d;--border-color: #e9ecef;--shadow-sm: 0 2px 10px rgba(0, 0, 0, .05);--shadow-md: 0 4px 20px rgba(0, 0, 0, .06);--shadow-lg: 0 8px 30px rgba(0, 0, 0, .08);--transition: all .3s cubic-bezier(.4, 0, .2, 1)}body{font-family:Microsoft YaHei,微软雅黑,-apple-system,BlinkMacSystemFont,Segoe UI,Arial,sans-serif;background-color:var(--bg-color);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:#f1f1f1}::-webkit-scrollbar-thumb{background:#c1c1c1;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#a8a8a8}.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 20px;border:none;border-radius:8px;font-size:14px;font-weight:500;cursor:pointer;transition:var(--transition);text-decoration:none;gap:8px}.btn-primary{background:linear-gradient(135deg,var(--primary-color) 0%,var(--primary-dark) 100%);color:#fff;box-shadow:0 4px 15px #ff95004d}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px #ff950066}.btn-secondary{background:#fff;color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary:hover{background:var(--bg-color);border-color:var(--primary-color)}.btn-danger{background:#ff4d4f;color:#fff}.btn-danger:hover{background:#ff7875}.card{background:var(--card-bg);border-radius:12px;padding:20px;box-shadow:var(--shadow-md);border:1px solid var(--border-color);transition:var(--transition)}.card:hover{box-shadow:var(--shadow-lg)}.input{width:100%;padding:12px 16px;border:2px solid var(--border-color);border-radius:8px;font-size:14px;transition:var(--transition);background:#fafbfc}.input:focus{outline:none;border-color:var(--primary-color);background:#fff;box-shadow:0 0 0 4px #ff95001a}.loading{display:inline-block;width:20px;height:20px;border:3px solid rgba(255,255,255,.3);border-radius:50%;border-top-color:#fff;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.text-center{text-align:center}.text-muted{color:var(--text-muted)}.mt-1{margin-top:.5rem}.mt-2{margin-top:1rem}.mt-3{margin-top:1.5rem}.mt-4{margin-top:2rem}.mb-1{margin-bottom:.5rem}.mb-2{margin-bottom:1rem}.mb-3{margin-bottom:1.5rem}.mb-4{margin-bottom:2rem}.container{max-width:1200px;margin:0 auto;padding:0 20px}@media (max-width: 768px){.container{padding:0 15px}.btn{padding:8px 16px;font-size:13px}}