:root{--primary: #4f46e5;--primary-light: #818cf8;--primary-dark: #3730a3;--primary-bg: #eef2ff;--danger: #ef4444;--danger-light: #fee2e2;--warning: #f59e0b;--warning-light: #fef3c7;--success: #10b981;--success-light: #d1fae5;--info: #3b82f6;--info-light: #dbeafe;--bg-primary: #ffffff;--bg-secondary: #f9fafb;--bg-tertiary: #f3f4f6;--bg-hover: #f3f4f6;--bg-active: #eef2ff;--text-primary: #111827;--text-secondary: #6b7280;--text-tertiary: #9ca3af;--text-inverse: #ffffff;--border: #e5e7eb;--border-light: #f3f4f6;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow: 0 1px 3px rgba(0, 0, 0, .1), 0 1px 2px rgba(0, 0, 0, .06);--shadow-md: 0 4px 6px rgba(0, 0, 0, .07), 0 2px 4px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .1), 0 4px 6px rgba(0, 0, 0, .05);--radius-sm: 4px;--radius: 8px;--radius-lg: 12px;--radius-xl: 16px;--sidebar-width: 240px;--header-height: 52px;--toolbar-height: 44px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body,#app{height:100%;width:100%;overflow:hidden}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:14px;color:var(--text-primary);background:var(--bg-secondary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:var(--primary);text-decoration:none}button{cursor:pointer;border:none;background:none;font-family:inherit;font-size:inherit;color:inherit}input,textarea,select{font-family:inherit;font-size:inherit;color:inherit}input:focus,textarea:focus,select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #4f46e51a}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--text-tertiary);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 16px;border-radius:var(--radius);font-size:14px;font-weight:500;transition:all .15s ease;white-space:nowrap;-webkit-user-select:none;user-select:none}.btn-primary{background:var(--primary);color:var(--text-inverse)}.btn-primary:hover{background:var(--primary-dark)}.btn-danger{background:var(--danger);color:var(--text-inverse)}.btn-danger:hover{background:#dc2626}.btn-outline{border:1px solid var(--border);color:var(--text-primary)}.btn-outline:hover{background:var(--bg-hover)}.btn-ghost{color:var(--text-secondary)}.btn-ghost:hover{background:var(--bg-hover);color:var(--text-primary)}.btn-sm{padding:4px 10px;font-size:13px}.btn-lg{padding:12px 24px;font-size:16px}.input{display:block;width:100%;padding:8px 12px;border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-primary);transition:border-color .15s ease,box-shadow .15s ease}.toast{position:fixed;top:20px;right:20px;z-index:10000;padding:12px 20px;border-radius:var(--radius);color:var(--text-inverse);font-weight:500;box-shadow:var(--shadow-lg);animation:toastIn .3s ease}.toast-success{background:var(--success)}.toast-error{background:var(--danger)}.toast-warning{background:var(--warning)}.toast-info{background:var(--info)}@keyframes toastIn{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{transform:translateY(10px);opacity:0}to{transform:translateY(0);opacity:1}}.skeleton{background:linear-gradient(90deg,var(--bg-tertiary) 25%,var(--bg-hover) 50%,var(--bg-tertiary) 75%);background-size:200% 100%;animation:skeleton 1.5s infinite;border-radius:var(--radius-sm)}@keyframes skeleton{0%{background-position:200% 0}to{background-position:-200% 0}}