:root{--color-primary: #0071e3;--color-primary-hover: #0077ed;--color-primary-light: rgba(0, 113, 227, .08);--color-danger: #ff3b30;--color-danger-hover: #ff453a;--color-success: #34c759;--color-warning: #ff9f0a;--gray-50: #f5f5f7;--gray-100: #e8e8ed;--gray-200: #d2d2d7;--gray-300: #aeaeb2;--gray-400: #8e8e93;--gray-500: #6e6e73;--gray-600: #48484a;--gray-700: #3a3a3c;--gray-800: #2c2c2e;--gray-900: #1d1d1f;--bg-primary: var(--gray-50);--bg-secondary: #ffffff;--text-primary: var(--gray-900);--text-secondary: var(--gray-500);--text-tertiary: var(--gray-400);--border-light: var(--gray-200);--border-heavy: var(--gray-100);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .04);--shadow-md: 0 2px 8px rgba(0, 0, 0, .06);--shadow-lg: 0 4px 16px rgba(0, 0, 0, .08);--shadow-xl: 0 8px 32px rgba(0, 0, 0, .12);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 20px;--ease-apple: cubic-bezier(.25, .1, .25, 1);--ease-spring: cubic-bezier(.34, 1.56, .64, 1);--transition-fast: .15s;--transition-normal: .25s;--transition-slow: .35s;--reading-width: 1040px}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{font-size:16px;-webkit-text-size-adjust:100%}body{font-family:-apple-system,BlinkMacSystemFont,SF Pro Display,SF Pro Text,Inter,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:var(--bg-primary);color:var(--text-primary);font-size:15px;line-height:1.7;font-weight:400;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}#app{min-height:100vh}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 18px;border:none;border-radius:var(--radius-sm);font-family:inherit;font-size:14px;font-weight:500;line-height:1.4;cursor:pointer;transition:all var(--transition-fast) var(--ease-apple);white-space:nowrap;-webkit-user-select:none;user-select:none}.btn:active{transform:scale(.97)}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover{background:var(--color-primary-hover)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-secondary{background:var(--border-heavy);color:var(--text-primary)}.btn-secondary:hover{background:var(--border-light)}.btn-danger{background:var(--color-danger);color:#fff}.btn-danger:hover{background:var(--color-danger-hover)}.btn-sm{padding:5px 12px;font-size:13px}.btn-block{width:100%}.input{width:100%;padding:10px 14px;border:1px solid var(--border-light);border-radius:var(--radius-sm);font-family:inherit;font-size:15px;font-weight:400;line-height:1.5;color:var(--text-primary);background:var(--bg-secondary);transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-light)}.input::placeholder{color:var(--text-tertiary)}select.input{cursor:pointer;appearance:none;-webkit-appearance:none;-moz-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:36px}textarea.input{resize:vertical}.card{background:var(--bg-secondary);border-radius:var(--radius-md);padding:24px;border:1px solid var(--border-heavy);transition:box-shadow var(--transition-normal) var(--ease-apple)}.page-title{font-size:25px;font-weight:600;letter-spacing:-.015em;color:var(--text-primary);margin-bottom:24px;line-height:1.25}.section-title{font-size:18px;font-weight:600;letter-spacing:-.01em;color:var(--text-primary);margin-bottom:16px;line-height:1.3}.fade-enter-active,.fade-leave-active{transition:opacity var(--transition-slow) var(--ease-apple)}.fade-enter-from,.fade-leave-to{opacity:0}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--gray-200);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--gray-300)}.text-secondary{color:var(--text-secondary)}.text-tertiary{color:var(--text-tertiary)}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.gap-2{gap:8px}.gap-4{gap:16px}.markdown-body{max-width:var(--reading-width);margin:0 auto;color:var(--text-primary);font-size:15px;line-height:1.7}.markdown-body h1{font-size:28px;font-weight:600;letter-spacing:-.015em;margin-top:40px;margin-bottom:16px;line-height:1.25}.markdown-body h2{font-size:22px;font-weight:600;letter-spacing:-.01em;margin-top:32px;margin-bottom:14px;line-height:1.3}.markdown-body h3{font-size:18px;font-weight:500;margin-top:24px;margin-bottom:12px;line-height:1.35}.markdown-body p{margin-bottom:14px}.markdown-body ul,.markdown-body ol{margin-bottom:14px;padding-left:24px}.markdown-body li{margin-bottom:4px}.markdown-body blockquote{border-left:3px solid var(--gray-200);padding:12px 20px;margin:16px 0;color:var(--text-secondary);background:var(--gray-50);border-radius:0 var(--radius-sm) var(--radius-sm) 0}.markdown-body code{font-family:SF Mono,Fira Code,Menlo,Monaco,Consolas,monospace;font-size:13px;background:var(--gray-50);padding:2px 6px;border-radius:4px;color:var(--color-primary)}.markdown-body pre{background:var(--gray-900);color:#f5f5f7;padding:20px 24px;border-radius:var(--radius-md);overflow-x:auto;margin:16px 0}.markdown-body pre code{background:none;padding:0;color:inherit;font-size:13px;line-height:1.6}.markdown-body table{width:100%;border-collapse:collapse;margin:16px 0}.markdown-body th,.markdown-body td{border:1px solid var(--border-heavy);padding:10px 16px;text-align:left;font-size:14px}.markdown-body th{background:var(--gray-50);font-weight:600;color:var(--text-primary)}.markdown-body img{max-width:100%;border-radius:var(--radius-md);margin:16px 0}.markdown-body hr{border:none;border-top:1px solid var(--border-heavy);margin:32px 0}.markdown-body a{color:var(--color-primary);text-decoration:none}.markdown-body a:hover{text-decoration:underline}@media (max-width: 768px){:root{--content-padding: 16px}body{-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent}.page-title{font-size:22px;margin-bottom:16px}.section-title{font-size:16px;margin-bottom:12px}.card{padding:16px;border-radius:var(--radius-sm)}.modal-overlay .modal,.modal{max-width:calc(100vw - 32px)!important;max-height:90vh}.markdown-body{overflow-x:auto}.markdown-body table{font-size:13px}.markdown-body th,.markdown-body td{padding:8px 12px}}