:root{--bg: #f1f5f9;--panel: #ffffff;--border: #e2e8f0;--text: #0f172a;--muted: #64748b;--accent: #2563eb;--accent-soft: #dbeafe;--green: #16a34a;--amber: #f59e0b;--danger: #dc2626;--radius: 12px}*{box-sizing:border-box}body{margin:0;font-family:Segoe UI,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text)}.app{display:flex;flex-direction:column;min-height:100vh}.topbar{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;background:#0f172a;color:#fff;gap:16px;flex-wrap:wrap}.brand{display:flex;align-items:center;gap:10px}.brand-logo{width:34px;height:34px;object-fit:contain;display:block}.brand-name{font-size:20px;font-weight:700;letter-spacing:.3px}.brand-tag{color:#94a3b8;font-size:13px;margin-left:4px}.topbar-stats{display:flex;gap:12px;align-items:center}.stat{background:#1e293b;padding:6px 12px;border-radius:20px;font-size:13px;font-weight:600}.stat.accent{background:var(--green);color:#fff}.btn{background:var(--accent);color:#fff;border:none;border-radius:8px;padding:8px 14px;font-size:13px;font-weight:600;cursor:pointer;transition:background .15s}.btn:hover{background:#1d4ed8}.btn.ghost{background:transparent;border:1px solid #475569;color:#e2e8f0}.btn.ghost:hover{background:#1e293b}.btn.small{padding:5px 10px;font-size:12px}.btn:disabled{opacity:.45;cursor:not-allowed}.coords{color:#94a3b8;font-size:11px;font-weight:400}.nav-btn{background:transparent;border:1px solid #475569;color:#e2e8f0}.nav-btn:hover{background:#1e293b}.nav-btn.active{background:var(--accent);border-color:var(--accent);color:#fff}.share-note{color:#86efac;font-size:12px;font-weight:600;white-space:nowrap}.share-note.error{color:#fca5a5}.load-error-banner{background:#fef2f2;border:1px solid #fecaca;color:#b91c1c;font-size:13px;padding:8px 14px;margin:8px auto;max-width:1000px;border-radius:8px;display:flex;align-items:center;justify-content:space-between;gap:10px;cursor:pointer}.load-error-close{background:none;border:none;font-size:14px;cursor:pointer;color:#b91c1c;padding:2px 6px}.guide{max-width:1000px;margin:0 auto;padding:24px 16px}.guide-hero{text-align:center;background:linear-gradient(135deg,#1e3a8a,#2563eb);color:#fff;border-radius:16px;padding:36px 24px;margin-bottom:24px}.guide-hero h1{margin:0 0 10px;font-size:28px}.guide-hero p{max-width:680px;margin:0 auto 20px;font-size:15px;line-height:1.6;opacity:.95}.guide-steps{display:flex;flex-direction:column;gap:12px;margin-bottom:32px}.guide-step{display:flex;gap:16px;align-items:flex-start;background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:18px}.guide-step-num{width:34px;height:34px;border-radius:50%;background:var(--accent);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:16px}.guide-step-icon{font-size:26px;flex-shrink:0;line-height:34px}.guide-step-body h3{margin:0 0 6px;font-size:16px}.guide-step-body p{margin:0;color:var(--muted);font-size:14px;line-height:1.55}.guide-sample h2,.guide-tips h2{text-align:center;margin:0 0 16px}.sample-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}.sample-card{background:var(--panel);border:1px solid var(--border);border-radius:12px;overflow:hidden}.sample-visual{padding:16px;min-height:180px;display:flex;flex-direction:column;gap:10px;justify-content:center}.sample-plan{position:relative;background:#fafbfc}.sample-wall{position:absolute;background:#334155;border-radius:2px}.sample-room{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);color:#64748b;font-weight:700;font-size:15px}.sample-money{background:#f0fdf4}.sm-line{font-size:13px;color:#334155;font-family:monospace}.sm-line.grand{font-weight:800;color:var(--green);font-size:15px;margin-top:4px}.sm-line.ok{color:var(--green)}.sample-label{text-align:center;padding:10px;font-size:12px;color:var(--muted);border-top:1px solid var(--border);background:#f8fafc}.guide-tips{margin-top:32px;background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:20px}.tips-row{display:flex;gap:20px;justify-content:center;flex-wrap:wrap}.tip{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted)}.tip-key{background:#1e293b;color:#fff;padding:5px 10px;border-radius:6px;font-size:12px;font-weight:700;font-family:monospace}.layout{display:flex;gap:16px;padding:16px;align-items:flex-start}.left-panel{width:240px;flex-shrink:0}.canvas-area{flex:1;min-width:0}.right-panel{width:320px;flex-shrink:0}.right-tabs{display:flex;gap:6px;margin-bottom:10px}.right-tab{flex:1;border:1px solid var(--border);background:#fff;border-radius:8px;padding:8px;font-size:13px;font-weight:600;cursor:pointer;transition:all .15s}.right-tab:hover{border-color:var(--accent)}.right-tab.active{background:var(--accent);border-color:var(--accent);color:#fff}.panel{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:16px}.panel-title{margin:0 0 4px;font-size:15px;font-weight:700}.panel-subtitle{margin:0 0 16px;color:var(--muted);font-size:12px}.muted{color:var(--muted)}.template-list{display:flex;flex-direction:column;gap:10px}.template-card{display:flex;gap:10px;align-items:flex-start;text-align:left;background:#f8fafc;border:1px solid var(--border);border-radius:10px;padding:10px;cursor:pointer;transition:all .15s}.template-card:hover{border-color:var(--accent);background:var(--accent-soft)}.template-emoji{font-size:26px}.template-name{font-weight:700;font-size:14px}.template-meta{color:var(--accent);font-size:12px;font-weight:600;margin:2px 0}.template-desc{color:var(--muted);font-size:12px;line-height:1.35}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a8c;display:flex;align-items:center;justify-content:center;z-index:300}.modal{background:#fff;border-radius:14px;padding:22px;width:420px;max-width:94vw;max-height:90vh;overflow-y:auto;box-shadow:0 20px 50px #00000040}.modal-title{margin:0 0 6px;font-size:17px}.field-label{display:block;font-size:12px;font-weight:600;color:var(--muted);margin:10px 0 4px}.field-input{width:100%;padding:8px 10px;border:1px solid var(--border);border-radius:8px;font-size:14px}.field-input:focus{outline:none;border-color:var(--accent)}.field-row{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:10px;flex-wrap:wrap}.field-row>div{flex:1;min-width:110px}.field-error{color:var(--danger);font-size:12px;margin:8px 0 0}.field-warn{color:#b45309;background:#fef3c7;border:1px solid #fde68a;border-radius:8px;font-size:12px;padding:8px 10px;margin:8px 0 0;line-height:1.4}.field-hint{color:var(--muted);font-size:13px;font-weight:600}.type-row{display:flex;gap:8px}.type-btn{flex:1;display:flex;flex-direction:column;align-items:center;gap:4px;border:1px solid var(--border);background:#f8fafc;border-radius:10px;padding:10px 6px;font-size:13px;font-weight:600;cursor:pointer;transition:all .15s}.type-btn:hover{border-color:var(--accent)}.type-btn.active{background:var(--accent);border-color:var(--accent);color:#fff}.type-emoji{font-size:22px}.preset-row{display:flex;flex-wrap:wrap;gap:6px}.preset-btn{border:1px solid var(--border);background:#f8fafc;border-radius:8px;padding:7px 12px;font-size:13px;font-weight:600;cursor:pointer;transition:all .15s}.preset-btn:hover{border-color:var(--accent)}.preset-btn.active{background:var(--accent);border-color:var(--accent);color:#fff}.preview-block{display:flex;align-items:center;gap:14px;margin-top:14px;padding:12px;background:#f8fafc;border:1px solid var(--border);border-radius:10px}.preview-canvas{position:relative;width:110px;height:95px;flex-shrink:0;display:flex;align-items:center;justify-content:center}.preview-rect{flex-shrink:0;background:var(--accent-soft);border:2px solid var(--accent);border-radius:4px;display:flex;align-items:center;justify-content:center}.preview-area{font-size:12px;font-weight:800;color:var(--accent);white-space:nowrap}.preview-dim-h{position:absolute;bottom:-2px;left:50%;transform:translate(-50%);font-size:11px;font-weight:700;color:var(--muted);background:#f8fafc;padding:0 3px;white-space:nowrap}.preview-dim-v{position:absolute;left:-2px;top:50%;transform:translateY(-50%) rotate(-90deg);font-size:11px;font-weight:700;color:var(--muted);background:#f8fafc;padding:0 3px;white-space:nowrap}.preview-size{font-size:15px;font-weight:800}.preview-note{font-size:12px;color:var(--muted);margin-top:4px;line-height:1.4}.create-row{margin-top:16px}.modal-wide{width:640px}.modal-head{display:flex;align-items:center;justify-content:space-between}.modal-close{background:none;border:none;font-size:18px;cursor:pointer;color:var(--muted);padding:4px 8px;border-radius:6px}.modal-close:hover{background:#f1f5f9;color:var(--text)}.facade-wrap{display:flex;justify-content:center;padding:14px 0 26px;overflow-x:auto}.facade-quiet{color:var(--muted);font-weight:400}.facade-svg{background:#fff;border:1px solid var(--border);border-radius:8px;display:block}.facade-hint{font-size:12px;color:var(--muted);border-top:1px solid var(--border);padding-top:10px}.slider-block{display:flex;flex-direction:column;gap:12px;margin-top:12px;padding:12px;background:#f8fafc;border:1px solid var(--border);border-radius:10px}.slider-label{display:flex;justify-content:space-between;margin:0}.slider-label b{color:var(--accent)}.range-input{width:100%;accent-color:var(--accent);cursor:pointer}.slider-numbers{margin-top:0}.editor{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.toolbar{display:flex;align-items:center;gap:6px;padding:10px;border-bottom:1px solid var(--border);background:#f8fafc;flex-wrap:wrap}.tool-btn{border:1px solid var(--border);background:#fff;border-radius:8px;padding:7px 12px;font-size:13px;cursor:pointer;transition:all .15s;font-weight:500}.tool-btn:hover{border-color:var(--accent)}.tool-btn.active{background:var(--accent);border-color:var(--accent);color:#fff}.toolbar-spacer{flex:1}.grid-label{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--muted);font-weight:600}.grid-select{padding:5px 8px;border:1px solid var(--border);border-radius:8px;font-size:13px;background:#fff;cursor:pointer}.grid-select:focus{outline:none;border-color:var(--accent)}.height-input{width:56px;padding:5px 8px;border:1px solid var(--border);border-radius:8px;font-size:13px;background:#fff}.height-input:focus{outline:none;border-color:var(--accent)}.floors-input{width:48px;padding:5px 8px;border:1px solid var(--border);border-radius:8px;font-size:13px;background:#fff}.floors-input:focus{outline:none;border-color:var(--accent)}.grid-unit{color:var(--muted);font-size:12px}.zoom-group{display:flex;align-items:center;gap:4px}.zoom-value{font-size:12px;font-weight:700;color:var(--muted);min-width:40px;text-align:center}.editor-stage{cursor:crosshair;background:#fff}.editor-hint{padding:10px 14px;border-top:1px solid var(--border);background:#f8fafc;color:var(--muted);font-size:12px;min-height:20px}.opening-sizebar{display:flex;align-items:center;flex-wrap:wrap;gap:8px 12px;padding:8px 14px;background:#f8fafc;border-bottom:1px solid var(--border)}.opening-sizebar-title{font-size:12px;font-weight:700;color:var(--accent);white-space:nowrap}.opening-sizebar label{display:flex;align-items:center;gap:5px;font-size:12px;color:var(--muted);font-weight:600;white-space:nowrap}.opening-sizebar input{width:62px;padding:5px 8px;border:1px solid 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var(--accent);border-radius:6px}.estimate-total{font-weight:700;font-size:13px;flex-shrink:0;min-width:80px;text-align:right}.estimate-summary{margin-top:12px;border-top:2px solid var(--border);padding-top:10px;display:flex;flex-direction:column;gap:6px}.summary-row{display:flex;justify-content:space-between;font-size:13px}.summary-row.grand{font-weight:800;font-size:16px;margin-top:6px;color:var(--green)}.estimate-hint{margin-top:12px;font-size:12px;color:var(--muted)}.estimate-hint a{color:var(--accent);text-decoration:none}.stages-section{padding:0 16px 16px}.stages-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.stages-progress-info{color:var(--muted);font-size:13px;display:flex;gap:8px}.progress-bar{height:8px;background:#e2e8f0;border-radius:4px;overflow:hidden;margin-bottom:14px}.progress-fill{height:100%;background:var(--green);transition:width 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12px}.tryon-file{display:none}.tryon-scene-wrap{position:relative;perspective:900px;margin:10px 0 12px}.tryon-scene{position:relative;height:240px;transform-style:preserve-3d;border-radius:10px;overflow:hidden}.tryon-back{position:absolute;left:18%;right:18%;top:0;bottom:12%;background:linear-gradient(160deg,#f1f5f9,#e2e8f0);border:1px solid #cbd5e1;box-shadow:0 10px 30px #0000002e;border-radius:4px;background-repeat:repeat}.tryon-side{position:absolute;top:0;bottom:12%;width:20%;background:linear-gradient(160deg,#e2e8f0,#cbd5e1);background-repeat:repeat;border:1px solid #cbd5e1}.tryon-side.left{left:-4%;transform:rotateY(55deg);transform-origin:right center}.tryon-side.right{right:-4%;transform:rotateY(-55deg);transform-origin:left center}.tryon-ceiling{position:absolute;left:-6%;right:-6%;top:-14%;height:40%;background:linear-gradient(180deg,#fff,#eef2f7);transform:rotateX(78deg);transform-origin:bottom center;z-index:-1}.tryon-floor{position:absolute;left:-6%;right:-6%;bottom:-24%;height:40%;background:linear-gradient(180deg,#d6d3d1,#a8a29e);transform:rotateX(72deg);transform-origin:top center;z-index:-1}.tryon-bed{position:absolute;left:14%;bottom:4%;width:42%;height:22%;background:linear-gradient(135deg,#64748b,#475569);border-radius:8px;opacity:.85;box-shadow:0 4px 12px #00000040}.tryon-bed:before{content:"";position:absolute;left:6%;top:14%;width:88%;height:40%;background:#e2e8f0;border-radius:6px}.tryon-lamp{position:absolute;right:8%;bottom:4%;width:10px;height:46px;background:#94a3b8;border-radius:3px}.tryon-lamp:before{content:"";position:absolute;top:-14px;left:-8px;width:26px;height:20px;background:radial-gradient(circle,#fde68a 0%,#fbbf24 60%,transparent 70%);border-radius:50%}.tryon-window{position:absolute;left:26%;top:12%;width:26%;height:30%;background:linear-gradient(180deg,#bfdbfe,#93c5fd);border:4px solid #fff;box-shadow:0 4px 14px #0003;border-radius:4px;display:flex;align-items:center;justify-content:center;font-size:26px}.tryon-pic{position:absolute;right:16%;top:12%;width:70px;height:60px;background:#f8fafc;border:5px solid #fff;box-shadow:0 4px 12px #0000002e;display:flex;align-items:center;justify-content:center;font-size:28px;transform:rotate(2deg)}.tryon-empty{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;text-align:center;color:var(--muted);font-size:13px;background:linear-gradient(160deg,#f8fafc,#eef2f7);border-radius:10px;padding:16px}.tryon-options{margin-bottom:8px}.tryon-check{display:flex;align-items:center;gap:6px;font-size:13px;cursor:pointer;color:var(--text)}.tryon-hint{font-size:12px;color:var(--muted);border-top:1px solid var(--border);padding-top:10px;line-height:1.5}