*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans SC,PingFang SC,Microsoft YaHei,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:linear-gradient(135deg,#667eea,#764ba2);background-attachment:fixed;color:#333}.app-container{min-height:100vh;background-repeat:no-repeat;background-size:cover;background-position:center;background-attachment:fixed;animation:fadeIn .5s ease-out}:root{--primary-color: #1890ff;--primary-light: #1890ff20;--primary-gradient: linear-gradient(135deg, #1890ff 0%, #096dd9 100%);--success-color: #52c41a;--warning-color: #faad14;--error-color: #ff4d4f;--text-primary: #1a1a1a;--text-secondary: #666;--text-muted: #999;--bg-white: rgba(255, 255, 255, .95);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .06);--shadow-md: 0 4px 16px rgba(0, 0, 0, .1);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .12);--shadow-glow: 0 0 20px rgba(24, 144, 255, .3);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes slideDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}@keyframes scaleIn{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-5px)}}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:var(--radius-md);font-size:15px;font-weight:500;text-decoration:none;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);border:none;position:relative;overflow:hidden}.btn:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);transition:left .5s}.btn:hover:before{left:100%}.btn-primary{background:var(--primary-gradient);color:#fff;box-shadow:0 4px 14px #1890ff66}.btn-primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px #1890ff80}.btn-primary:active:not(:disabled){transform:translateY(0)}.btn-primary:disabled{background:#d9d9d9;box-shadow:none;cursor:not-allowed}.btn-outline{border:2px solid var(--primary-color);color:var(--primary-color);background:transparent}.btn-outline:hover:not(:disabled){background:var(--primary-color);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-md)}.btn-danger{background:linear-gradient(135deg,#ff4d4f,#cf1322);color:#fff;box-shadow:0 4px 14px #ff4d4f66}.btn-danger:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px #ff4d4f80}.input{width:100%;padding:12px 16px;border:2px solid #e8e8e8;border-radius:var(--radius-md);font-size:15px;outline:none;transition:all .3s ease;background:#fff}.input:hover{border-color:#d9d9d9}.input:focus{border-color:var(--primary-color);box-shadow:0 0 0 3px var(--primary-light)}.card{background:var(--bg-white);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:var(--radius-lg);padding:32px;box-shadow:var(--shadow-lg);border:1px solid rgba(255,255,255,.2);animation:slideUp .5s ease-out}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:#f1f1f1;border-radius:4px}::-webkit-scrollbar-thumb{background:#c1c1c1;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#a8a8a8}::selection{background:var(--primary-light);color:var(--primary-color)}