*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{margin:0;padding:0;height:100%;overflow:hidden;font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,sans-serif;background:#fff;color:#111827;-webkit-user-select:none;user-select:none}#cad-container{position:fixed;top:0;right:0;bottom:0;left:0;z-index:0;touch-action:none}#cad-container canvas{display:block;touch-action:none}#cad-container canvas.cad-overlay{position:absolute;z-index:2;pointer-events:none}.hidden{display:none!important}#topbar{position:fixed;top:0;left:0;right:0;padding:calc(env(safe-area-inset-top,0px) + 10px) 12px 10px;background:linear-gradient(180deg,#fffffffa,#ffffffdb);border-bottom:1px solid #eef0f3;display:flex;align-items:center;justify-content:space-between;gap:8px;z-index:10}#topbar .title{font-size:15px;font-weight:600;line-height:28px;max-width:42%;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}#topbar .meta{display:flex;align-items:center;gap:6px;flex-shrink:0}.layout-select{max-width:132px;height:28px;padding:0 24px 0 10px;font-size:12px;line-height:26px;color:#111827;background-color:#f3f4f6;border:1px solid #e5e7eb;border-radius:8px;-moz-appearance:none;appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 8px center;background-size:12px 12px}.layout-select:disabled{opacity:.5}.build-chip{font-size:10px;line-height:1;color:#9ca3af;padding:4px 6px;background:#f3f4f6;border-radius:6px;white-space:nowrap;font-variant-numeric:tabular-nums}.build-chip:empty{display:none}.hint{position:fixed;left:12px;right:12px;top:calc(env(safe-area-inset-top,0px) + 62px);padding:8px 12px;font-size:12px;line-height:1.5;color:#1f2937;background:#e0f2fef5;border:1px solid #bae6fd;border-radius:8px;z-index:9;pointer-events:none}.panel{position:fixed;left:12px;right:12px;bottom:calc(env(safe-area-inset-bottom,0px) + 74px);padding:12px;background:#fffffffa;border:1px solid #e5e7eb;border-radius:12px;box-shadow:0 8px 24px #1118271f;z-index:11}.panel-row{display:flex;align-items:center;justify-content:space-between;font-size:13px;line-height:1.9}.panel-row .label{color:#6b7280}.panel-row .value{color:#111827;font-variant-numeric:tabular-nums}.panel-row .value.strong{font-size:16px;font-weight:700;color:#b45309}.panel-row.warn{display:block;color:#b91c1c;font-size:12px}.panel-actions{display:flex;gap:8px;margin-top:10px}.draw-colors{display:flex;gap:10px;margin-top:6px}.draw-color{width:28px;height:28px;padding:0;border:2px solid transparent;border-radius:50%;cursor:pointer}.draw-color.active{border-color:#111827;box-shadow:inset 0 0 0 2px #fff}.draw-widths{display:flex;gap:8px;margin-top:6px}.draw-width{flex:1;height:32px;display:inline-flex;align-items:center;justify-content:center;padding:0;background:#f3f4f6;border:1px solid #e5e7eb;border-radius:8px;cursor:pointer}.draw-width span{display:block;width:22px;background:#4b5563;border-radius:3px}.draw-width.active{background:#eff6ff;border-color:#2563eb}.draw-width.active span{background:#2563eb}.marker-card{position:fixed;left:12px;width:240px;padding:10px 12px;background:#fffffffc;border:1px solid #e5e7eb;border-radius:10px;box-shadow:0 8px 24px #11182729;z-index:12}.marker-card-head{display:flex;align-items:center;gap:6px;margin-bottom:6px}.marker-card-title{font-size:13px;font-weight:600}.marker-card .dot{width:8px;height:8px;border-radius:50%}.marker-card .dot.issue{background:#dc2626}.marker-card .dot.photo{background:#2563eb}.marker-card-body{font-size:12px;line-height:1.7;color:#4b5563}.marker-card-body em{color:#b45309;font-style:normal}.marker-card-actions{margin-top:8px;text-align:right}.btn{flex:1;height:36px;padding:0 12px;font-size:13px;color:#374151;background:#f3f4f6;border:1px solid #e5e7eb;border-radius:8px;cursor:pointer}.btn:active{opacity:.8}.btn:disabled{opacity:.45;cursor:default}.btn-sm{flex:0 0 auto;height:28px;font-size:12px}.btn-primary{color:#fff;background:#2563eb;border-color:#2563eb}#toolbar{position:fixed;left:0;right:0;bottom:0;padding:8px calc(env(safe-area-inset-right,0px) + 10px) calc(env(safe-area-inset-bottom,0px) + 8px) calc(env(safe-area-inset-left,0px) + 10px);display:flex;gap:6px;overflow:visible;background:transparent;border-top:none;z-index:10}#toolbar .tool{flex:1 1 0;min-width:0;max-width:48px;width:auto;height:44px;display:inline-flex;align-items:center;justify-content:center;padding:0;color:#1f2937;background:#ffffffeb;border:1px solid rgba(17,24,39,.08);border-radius:12px;box-shadow:0 2px 8px #1118272e;cursor:pointer}#toolbar .tool svg{width:22px;height:22px}#toolbar .tool.active{color:#fff;background:#2563eb;border-color:#2563eb}#toolbar .tool-ghost{color:#374151;background:#ffffffeb}#toolbar .tool-danger{color:#b91c1c;background:#fef2f2f2;border-color:#fecaca}.overlay{position:fixed;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:#ffffff73;z-index:20}.overlay-box{text-align:center;padding:16px 28px;background:#fffffff5;border-radius:12px;box-shadow:0 4px 18px #1118271f}.overlay-text{margin-top:12px;font-size:13px;color:#4b5563;line-height:1.6}.spinner{width:26px;height:26px;margin:0 auto;border:2px solid #e5e7eb;border-top-color:#2563eb;border-radius:50%;animation:cad-spin .9s linear infinite}@keyframes cad-spin{to{transform:rotate(360deg)}}.overlay .btn{margin-top:14px;flex:0 0 auto;min-width:96px}.toast{position:fixed;left:50%;bottom:calc(env(safe-area-inset-bottom,0px) + 130px);transform:translate(-50%);max-width:80%;padding:8px 16px;font-size:13px;color:#fff;background:#111827db;border-radius:18px;z-index:30;text-align:center}