@import"https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;600&display=swap";:root{--bg-deep: #06060f;--bg-mid: #0c0c1d;--surface: rgba(15, 15, 35, .9);--surface-hover: rgba(25, 25, 55, .95);--border: rgba(120, 120, 200, .15);--border-active: rgba(168, 130, 255, .5);--text: #e0e0f0;--text-dim: rgba(180, 180, 220, .6);--accent: #c8a2ff;--accent-glow: rgba(200, 162, 255, .3);--danger: #ff6b8a;--danger-glow: rgba(255, 107, 138, .2);--warning: #ffb347;--success: #7ddfba;--node-default: #c8a2ff;--node-child1: #7ecbff;--node-child2: #ff9de2;--node-child3: #7ddfba;--node-child4: #ffb347}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Noto Sans SC,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg-deep);color:var(--text);overflow:hidden;width:100vw;height:100vh;height:100dvh;-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;user-select:none;-webkit-user-select:none}.hidden{display:none!important}#login-screen{position:fixed;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:var(--bg-deep);z-index:1000;padding:20px}.login-box{text-align:center;padding:40px 32px;background:var(--surface);border:1px solid var(--border);border-radius:16px;width:100%;max-width:340px;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px)}.login-star{width:60px;height:60px;margin:0 auto 24px;border-radius:50%;background:radial-gradient(circle,var(--accent) 0%,transparent 70%);box-shadow:0 0 40px var(--accent-glow),0 0 80px #c8a2ff26;animation:pulse-glow 3s ease-in-out infinite}.login-box h1{font-size:22px;font-weight:500;letter-spacing:2px;margin-bottom:8px;background:linear-gradient(135deg,#fff,var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent}.login-box p{font-size:13px;color:var(--text-dim);margin-bottom:28px}.login-box input{width:100%;padding:14px 16px;background:#ffffff0d;border:1px solid var(--border);border-radius:10px;color:var(--text);font-size:16px;font-family:inherit;outline:none;transition:border-color .2s;margin-bottom:16px}.login-box input:focus{border-color:var(--border-active)}.login-box button{width:100%;padding:14px;background:linear-gradient(135deg,#c8a2ff33,#c8a2ff1a);border:1px solid var(--border-active);border-radius:10px;color:var(--accent);font-size:15px;font-family:inherit;font-weight:500;cursor:pointer;transition:all .2s;letter-spacing:1px}.login-box button:hover{background:linear-gradient(135deg,#c8a2ff4d,#c8a2ff33);box-shadow:0 0 20px var(--accent-glow)}.error-msg{color:var(--danger);font-size:12px;margin-top:12px;min-height:16px}#starfield{position:fixed;top:0;right:0;bottom:0;left:0;width:100%;height:100%;z-index:0;touch-action:none}.overlay-layer{position:fixed;top:0;right:0;bottom:0;left:0;width:100%;height:100%;z-index:1;pointer-events:none}#connections{overflow:visible}#nodes-layer{pointer-events:none}#toolbar{position:fixed;bottom:32px;left:50%;transform:translate(-50%);display:flex;gap:8px;padding:8px 12px;background:var(--surface);border:1px solid var(--border);border-radius:14px;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);z-index:10}#toolbar button{width:42px;height:42px;display:flex;align-items:center;justify-content:center;background:transparent;border:1px solid transparent;border-radius:10px;color:var(--text-dim);cursor:pointer;transition:all .2s}#toolbar button:hover,#toolbar button:active{background:#ffffff14;border-color:var(--border);color:var(--text)}.idea-node{position:absolute;pointer-events:all;cursor:grab;user-select:none;-webkit-user-select:none;transition:transform .1s ease-out;z-index:2;-webkit-touch-callout:none}.idea-node:active{cursor:grabbing}.idea-node.selected{z-index:3}.node-body{position:relative;padding:14px 18px;min-width:120px;max-width:280px;background:var(--surface);border:1px solid var(--border);border-radius:12px;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);transition:all .3s ease}.idea-node:hover .node-body{border-color:#a882ff4d;box-shadow:0 0 24px #c8a2ff1a}.idea-node.selected .node-body{border-color:var(--border-active);box-shadow:0 0 30px var(--accent-glow),0 0 60px #c8a2ff1a}.idea-node.abandoned .node-body{opacity:.4;border-color:#64648c33}.idea-node.abandoned:hover .node-body{opacity:.7}.node-glow{position:absolute;top:-6px;left:50%;transform:translate(-50%);width:8px;height:8px;border-radius:50%;background:var(--node-color, var(--node-default));box-shadow:0 0 12px var(--node-color, var(--node-default));animation:node-breathe 3s ease-in-out infinite}.node-title{font-size:13px;font-weight:500;line-height:1.4;color:var(--text);word-break:break-word}.node-preview{font-size:11px;color:var(--text-dim);margin-top:4px;line-height:1.4;max-height:42px;overflow:hidden;word-break:break-word}.node-child-count{display:inline-flex;align-items:center;gap:4px;margin-top:6px;font-size:10px;color:var(--text-dim);opacity:.6}#detail-panel{position:fixed;top:0;right:0;width:360px;height:100vh;height:100dvh;background:var(--surface);border-left:1px solid var(--border);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);z-index:20;display:flex;flex-direction:column;animation:slide-in-right .25s ease-out}.panel-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border);font-size:14px;font-weight:500}.panel-header button{background:none;border:none;color:var(--text-dim);cursor:pointer;padding:6px;border-radius:6px;transition:color .2s}.panel-header button:hover{color:var(--text)}.panel-body{flex:1;padding:20px;overflow-y:auto;display:flex;flex-direction:column;gap:14px;-webkit-overflow-scrolling:touch}.panel-body input,.panel-body textarea{width:100%;padding:12px 14px;background:#ffffff0a;border:1px solid var(--border);border-radius:10px;color:var(--text);font-size:15px;font-family:inherit;outline:none;transition:border-color .2s;resize:vertical;-webkit-appearance:none}.panel-body input:focus,.panel-body textarea:focus{border-color:var(--border-active)}.panel-body input{font-weight:500;font-size:16px}.panel-body textarea{line-height:1.6;min-height:120px}.panel-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:4px}.action-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;background:#ffffff0a;border:1px solid var(--border);border-radius:8px;color:var(--text-dim);font-size:13px;font-family:inherit;cursor:pointer;transition:all .2s;-webkit-tap-highlight-color:transparent}.action-btn:hover,.action-btn:active{background:#ffffff14;color:var(--text)}.action-btn.warning:hover,.action-btn.warning:active{border-color:var(--warning);color:var(--warning)}.action-btn.danger:hover,.action-btn.danger:active{border-color:var(--danger);color:var(--danger)}.panel-footer{padding:16px 20px;border-top:1px solid var(--border)}.save-btn{width:100%;padding:12px;background:linear-gradient(135deg,#c8a2ff33,#c8a2ff1a);border:1px solid var(--border-active);border-radius:10px;color:var(--accent);font-size:14px;font-family:inherit;font-weight:500;cursor:pointer;transition:all .2s}.save-btn:hover,.save-btn:active{background:linear-gradient(135deg,#c8a2ff4d,#c8a2ff33);box-shadow:0 0 16px var(--accent-glow)}#abandoned-panel{position:fixed;top:0;left:0;width:320px;height:100vh;height:100dvh;background:var(--surface);border-right:1px solid var(--border);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);z-index:20;display:flex;flex-direction:column;animation:slide-in-left .25s ease-out}.abandoned-list{flex:1;overflow-y:auto;padding:12px;-webkit-overflow-scrolling:touch}.abandoned-item{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;background:#ffffff05;border:1px solid rgba(100,100,140,.1);border-radius:10px;margin-bottom:6px;cursor:pointer;transition:all .2s}.abandoned-item:hover,.abandoned-item:active{background:#ffffff0d;border-color:var(--border)}.abandoned-item-title{font-size:13px;color:var(--text-dim);flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.abandoned-item-actions{display:flex;gap:4px;opacity:0;transition:opacity .2s}.abandoned-item:hover .abandoned-item-actions,.abandoned-item:active .abandoned-item-actions{opacity:1}.abandoned-item-actions button{background:none;border:none;color:var(--text-dim);cursor:pointer;padding:6px;border-radius:6px;transition:color .2s}.abandoned-item-actions button:hover{color:var(--accent)}#context-menu{position:fixed;min-width:160px;background:var(--surface);border:1px solid var(--border);border-radius:10px;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);z-index:100;padding:4px;box-shadow:0 8px 32px #00000080}.ctx-item{display:flex;align-items:center;gap:8px;padding:10px 14px;font-size:14px;color:var(--text-dim);border-radius:8px;cursor:pointer;transition:all .15s;-webkit-tap-highlight-color:transparent}.ctx-item:hover,.ctx-item:active{background:#ffffff0f;color:var(--text)}.ctx-item.danger:hover,.ctx-item.danger:active{background:var(--danger-glow);color:var(--danger)}.ctx-separator{height:1px;background:var(--border);margin:4px 8px}#toast{position:fixed;bottom:90px;left:50%;transform:translate(-50%);padding:10px 24px;background:var(--surface);border:1px solid var(--border);border-radius:10px;font-size:13px;color:var(--text);z-index:200;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);animation:toast-in .3s ease-out}@media(max-width:640px){#detail-panel{width:100%;border-left:none;border-top:1px solid var(--border);top:auto;bottom:0;height:70vh;border-radius:20px 20px 0 0;animation:slide-up .3s ease-out}#abandoned-panel{width:100%;border-right:none;border-top:1px solid var(--border);top:auto;bottom:0;height:60vh;border-radius:20px 20px 0 0;animation:slide-up .3s ease-out}#toolbar{bottom:24px;padding:8px 14px;gap:6px;border-radius:16px}#toolbar button{width:40px;height:40px}.idea-node{min-width:90px;max-width:200px}.node-body{padding:10px 14px;min-width:80px;max-width:180px;border-radius:10px}.node-title{font-size:12px}.node-preview{font-size:10px}#context-menu{min-width:150px}.ctx-item{padding:12px 14px;font-size:15px}.panel-body input,.panel-body textarea{font-size:16px}}@keyframes slide-up{0%{transform:translateY(100%)}to{transform:translateY(0)}}@keyframes pulse-glow{0%,to{box-shadow:0 0 40px var(--accent-glow),0 0 80px #c8a2ff26}50%{box-shadow:0 0 60px var(--accent-glow),0 0 100px #c8a2ff40}}@keyframes node-breathe{0%,to{transform:translate(-50%) scale(1);opacity:.8}50%{transform:translate(-50%) scale(1.3);opacity:1}}@keyframes slide-in-right{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}@keyframes slide-in-left{0%{transform:translate(-100%);opacity:0}to{transform:translate(0);opacity:1}}@keyframes toast-in{0%{transform:translate(-50%) translateY(10px);opacity:0}to{transform:translate(-50%) translateY(0);opacity:1}}::-webkit-scrollbar{width:4px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#7878c833;border-radius:2px}::-webkit-scrollbar-thumb:hover{background:#7878c84d}