:root{--bg: #0d1117;--surface: #161b22;--surface-light: #21262d;--border: #30363d;--text: #e6edf3;--text-muted: #8b949e;--accent: #58a6ff;--accent-hover: #79c0ff;--tab-active: #1f6feb;--green: #3fb950;--red: #f85149;--orange: #d29922;--purple: #bc8cff}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.5}.header{background:var(--surface);border-bottom:1px solid var(--border);padding:24px 32px;text-align:center}.header h1{font-size:24px;font-weight:600;letter-spacing:-.5px}.header .subtitle{color:var(--text-muted);font-size:14px;margin-top:4px}.tabs{display:flex;gap:0;background:var(--surface);border-bottom:1px solid var(--border);padding:0 16px;overflow-x:auto;-webkit-overflow-scrolling:touch}.tab{display:flex;align-items:center;gap:8px;padding:12px 16px;border:none;background:none;color:var(--text-muted);font-size:14px;cursor:pointer;white-space:nowrap;border-bottom:2px solid transparent;transition:all .2s}.tab:hover{color:var(--text)}.tab.active{color:var(--text);border-bottom-color:var(--tab-active)}.tab .num{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:50%;background:var(--surface-light);font-size:12px;font-weight:600}.tab.active .num{background:var(--tab-active);color:#fff}.main-content{max-width:1400px;margin:0 auto;padding:24px 32px}.main-content h2{font-size:22px;font-weight:600;margin-bottom:8px}.main-content .desc{color:var(--text-muted);font-size:14px;margin-bottom:24px}.diagram-container{background:var(--surface);border:1px solid var(--border);border-radius:8px;margin-bottom:24px;overflow:hidden}.diagram-container h3{font-size:15px;font-weight:600;padding:12px 16px;border-bottom:1px solid var(--border);color:var(--text-muted)}.diagram-canvas{height:500px;width:100%}.react-flow{background:var(--bg)!important}.react-flow .react-flow__edges{z-index:5!important}.react-flow .react-flow__edgelabel-renderer{z-index:6!important}.react-flow__minimap{background:var(--surface)!important;border:1px solid var(--border)!important;border-radius:6px!important}.react-flow__controls{border:1px solid var(--border)!important;border-radius:6px!important;overflow:hidden}.react-flow__controls-button{background:var(--surface)!important;border-bottom:1px solid var(--border)!important;fill:var(--text-muted)!important}.react-flow__controls-button:hover{background:var(--surface-light)!important;fill:var(--text)!important}.react-flow__handle{opacity:0!important;width:1px!important;height:1px!important}.react-flow__edge-path{stroke-width:2!important}.react-flow__edge-textbg{fill:var(--surface)!important;stroke:var(--border)!important;stroke-width:.5!important;rx:4!important;ry:4!important}.react-flow__edge-text{fill:var(--text);font-size:11px}.info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:16px;margin-bottom:24px}.info-card{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:16px}.info-card h4{font-size:14px;font-weight:600;margin-bottom:12px;color:var(--accent)}.info-card ul{list-style:none;padding:0}.info-card li{font-size:13px;padding:3px 0;color:var(--text-muted)}.info-card li strong{color:var(--text)}.info-card table{width:100%;border-collapse:collapse;font-size:13px}.info-card th{text-align:left;padding:6px 8px;border-bottom:1px solid var(--border);color:var(--text-muted);font-weight:600;font-size:12px}.info-card td{padding:5px 8px;border-bottom:1px solid rgba(48,54,61,.5);color:var(--text-muted)}.info-card code{font-family:SF Mono,Fira Code,monospace;font-size:12px;background:var(--surface-light);padding:1px 5px;border-radius:3px}.about-section{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:20px 24px;margin-bottom:24px}.about-section h3{font-size:16px;font-weight:600;margin-bottom:12px;margin-top:20px;color:var(--accent)}.about-section h3:first-child{margin-top:0}.about-section p{color:var(--text-muted);font-size:14px;line-height:1.6;margin-bottom:12px}.about-list{list-style:none;padding:0}.about-list li{font-size:13px;padding:6px 0;color:var(--text-muted);line-height:1.5;border-bottom:1px solid rgba(48,54,61,.3)}.about-list li:last-child{border-bottom:none}.about-list li strong{color:var(--text)}ol.about-list{list-style:decimal;padding-left:20px}.roadmap-table-wrapper{background:var(--surface);border:1px solid var(--border);border-radius:8px;overflow:hidden;margin-bottom:24px}.roadmap-table{width:100%;border-collapse:collapse;font-size:14px}.roadmap-table th{text-align:left;padding:12px 16px;background:var(--surface-light);border-bottom:1px solid var(--border);color:var(--text-muted);font-weight:600;font-size:13px}.roadmap-table td{padding:10px 16px;border-bottom:1px solid rgba(48,54,61,.5);color:var(--text-muted);font-size:13px;line-height:1.5}.roadmap-table tr:last-child td{border-bottom:none}.roadmap-table .roadmap-area strong{color:var(--text)}.roadmap-status{text-align:center;width:40px}.roadmap-check{color:var(--green);font-size:16px;font-weight:700}.roadmap-pending{color:var(--text-muted);font-size:14px}.roadmap-done td{color:var(--text-muted)}.roadmap-done .roadmap-area strong{color:var(--green)}.footer{text-align:center;padding:24px;color:var(--text-muted);font-size:12px;border-top:1px solid var(--border);margin-top:32px}@keyframes dashdraw{to{stroke-dashoffset:-10}}@media(max-width:768px){.main-content{padding:16px}.info-grid{grid-template-columns:1fr}.diagram-canvas{height:400px}.header{padding:16px}.tab{padding:10px 12px;font-size:13px}}