:root{--bg: #0d1117;--panel: #161b22;--card: #1c2330;--border: #30363d;--text: #e6edf3;--muted: #8b949e;--faint: #6e7681;--mono: "SF Mono","Cascadia Code",Consolas,"JetBrains Mono",monospace}*{margin:0;padding:0;box-sizing:border-box}body{background:var(--bg);color:var(--text);font-family:-apple-system,PingFang SC,Microsoft YaHei,sans-serif;min-height:100vh;background-image:linear-gradient(rgba(48,54,61,.18) 1px,transparent 1px),linear-gradient(90deg,rgba(48,54,61,.18) 1px,transparent 1px);background-size:44px 44px}header{padding:44px 48px 20px;max-width:1720px;margin:0 auto}h1{font-size:30px;letter-spacing:.5px}h1 .accent{color:#58a6ff;font-family:var(--mono)}.backlink{display:inline-block;margin-bottom:16px;font-size:13px;color:var(--muted);text-decoration:none;font-family:var(--mono)}.backlink:hover{color:var(--text)}.subtitle{color:var(--muted);margin-top:10px;font-size:14.5px;line-height:1.7}.subtitle code{font-family:var(--mono);color:#7ee787;background:#7ee78714;padding:1px 6px;border-radius:4px;font-size:13px}.legend{display:flex;gap:22px;flex-wrap:wrap;margin-top:18px;align-items:center}.legend .item{display:flex;align-items:center;gap:7px;font-size:13px;color:var(--muted)}.dot{width:10px;height:10px;border-radius:50%;display:inline-block}.pill{font-size:11.5px;padding:2px 9px;border-radius:20px;border:1px solid var(--border);color:var(--muted)}.canvas-wrap{overflow-x:auto;padding:10px 48px 60px}.canvas{min-width:1660px;border:1px solid var(--border);border-radius:14px;background:#0d1117b8;backdrop-filter:blur(2px);overflow:hidden}.grid{display:grid;grid-template-columns:172px repeat(6,1fr)}.phase-row{display:contents}.phase-cell{padding:18px 16px 14px;border-bottom:1px solid var(--border);border-left:1px solid var(--border);position:relative}.phase-cell:first-child{border-left:none;background:var(--panel)}.phase-cell .ph{font-family:var(--mono);font-size:13px;color:var(--text);letter-spacing:.5px}.phase-cell .sub{font-size:11.5px;color:var(--faint);margin-top:4px}.phase-cell.future{background:repeating-linear-gradient(-45deg,rgba(48,54,61,.25) 0 8px,transparent 8px 16px)}.track-row{display:contents}.track-label{padding:26px 18px;border-bottom:1px solid var(--border);background:var(--panel);position:relative}.track-label .t-name{font-size:15px;font-weight:600;display:flex;align-items:center;gap:8px}.track-label .t-desc{font-size:11.5px;color:var(--faint);margin-top:6px;line-height:1.5}.track-label:before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--tc)}.cell{border-left:1px solid var(--border);border-bottom:1px solid var(--border);padding:20px 14px;position:relative;display:flex;flex-direction:column;justify-content:center;gap:12px}.cell.future-cell{background:#30363d14}.baseline{position:absolute;left:0;right:0;top:50%;height:2px;background:linear-gradient(90deg,transparent,var(--tc) 12%,var(--tc) 88%,transparent);opacity:.22;pointer-events:none}.node{position:relative;z-index:1;background:var(--card);border:1px solid var(--border);border-radius:10px;padding:12px 14px;cursor:pointer;transition:transform .15s,border-color .15s,box-shadow .15s}.node:hover{transform:translateY(-3px);border-color:var(--nc);box-shadow:0 6px 22px -6px var(--nc)}.node:before{content:"";position:absolute;left:-19px;top:50%;transform:translateY(-50%);width:9px;height:9px;border-radius:50%;background:var(--nc);box-shadow:0 0 0 3px #0d1117,0 0 0 4.5px var(--nc)}.node.planned{border-style:dashed;opacity:.75}.node.planned:before{background:var(--bg);border:2px solid var(--nc)}.node.ongoing:after{content:"";position:absolute;right:10px;top:10px;width:7px;height:7px;border-radius:50%;background:#e3b341;animation:pulse 1.6s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.25}}.node .n-title{font-size:13.5px;font-weight:600;line-height:1.4}.node .n-tag{display:inline-block;margin-top:7px;font-size:10.5px;font-family:var(--mono);color:var(--nc);background:color-mix(in srgb,var(--nc) 12%,transparent);padding:2px 7px;border-radius:4px}.node .n-badge{display:inline-block;margin-top:7px;font-size:10.5px;color:var(--muted);border:1px dashed var(--border);padding:2px 7px;border-radius:4px;margin-left:5px}footer{max-width:1720px;margin:0 auto;padding:0 48px 40px;color:var(--faint);font-size:12.5px;line-height:1.8}footer code{font-family:var(--mono)}.backdrop{position:fixed;inset:0;background:#0000008c;opacity:0;pointer-events:none;transition:opacity .25s;z-index:9}.backdrop.show{opacity:1;pointer-events:auto}.drawer{position:fixed;top:0;right:-460px;width:440px;max-width:92vw;height:100vh;background:var(--panel);border-left:1px solid var(--border);z-index:10;transition:right .28s cubic-bezier(.2,.8,.2,1);display:flex;flex-direction:column}.drawer.show{right:0}.drawer-head{padding:26px 28px 18px;border-bottom:1px solid var(--border)}.drawer-head .d-track{font-family:var(--mono);font-size:12px;letter-spacing:1px}.drawer-head h2{font-size:21px;margin-top:10px;line-height:1.4}.drawer-head .d-status{margin-top:12px;display:flex;gap:8px;align-items:center}.status-pill{font-size:12px;padding:3px 11px;border-radius:20px;border:1px solid}.drawer-body{padding:24px 28px;flex:1;overflow-y:auto}.drawer-body p{font-size:14.5px;line-height:1.9;color:var(--muted)}.drawer-body .d-badge{margin-top:18px;font-size:12.5px;color:var(--text);border:1px dashed var(--border);border-radius:8px;padding:10px 14px;background:#30363d33}.drawer-body a.read{display:inline-flex;align-items:center;gap:8px;margin-top:26px;padding:10px 18px;border-radius:8px;border:1px solid var(--dc);color:var(--dc);text-decoration:none;font-size:14px;transition:background .15s}.drawer-body a.read:hover{background:color-mix(in srgb,var(--dc) 14%,transparent)}.drawer-body .d-note{margin-top:14px;font-size:11.5px;color:var(--faint);font-family:var(--mono)}.close{position:absolute;top:18px;right:20px;width:32px;height:32px;border-radius:8px;border:1px solid var(--border);background:transparent;color:var(--muted);font-size:16px;cursor:pointer}.close:hover{color:var(--text);border-color:var(--muted)}