:root{font-family:Segoe UI,Microsoft YaHei,Arial,sans-serif;color:#233333;background:#e9eeec;line-height:1.5}*{box-sizing:border-box}body{margin:0}button{font:inherit;cursor:pointer}button:focus-visible{outline:2px solid #aa633b;outline-offset:2px}.topbar{height:68px;padding:0 24px;display:flex;align-items:center;justify-content:space-between;background:#f8faf9;border-bottom:1px solid #d6dfdd}.identity{display:flex;align-items:center;gap:11px}.identity .mark{width:36px;height:36px;display:grid;place-items:center;background:#2e4847;color:#fff;font-size:12px;font-weight:700}.identity strong{display:block;font-size:14px}.identity small{display:block;color:#748784;font-size:10px}.top-actions{display:flex;gap:8px;align-items:center}.icon-button,.text-button{height:36px;background:#fff;border:1px solid #cdd8d5;color:#344745}.icon-button{width:36px;display:grid;place-items:center;font-size:21px;line-height:1}.text-button{padding:0 13px;font-size:12px}.layout{min-height:calc(100vh - 68px);display:grid;grid-template-columns:minmax(0,1fr) 370px;max-width:1600px;margin:auto}.viewer{min-height:calc(100vh - 68px);position:relative;overflow:hidden;background:#e9eeec}.viewer #scene{position:absolute;inset:0}.viewer-heading{position:absolute;top:27px;left:28px;pointer-events:none}.eyebrow{font-size:10px;letter-spacing:.12em;color:#798a88;font-weight:700}.viewer-heading h1{font-size:32px;margin:6px 0 0;letter-spacing:0;font-weight:650}.viewer-heading p{margin:1px 0;color:#637674;font-size:12px}.viewer-bottom{position:absolute;bottom:21px;left:28px;right:28px;display:flex;justify-content:space-between;gap:12px;color:#657875;font-size:11px;pointer-events:none}.loading{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);font-size:12px;color:#61716e;background:#f8faf9e8;padding:10px 16px;border:1px solid #cdd8d5}.detail{background:#f9fbfa;border-left:1px solid #d6dfdd;padding:28px 25px 20px;overflow:auto}.detail-intro h2{font-size:22px;margin:7px 0 6px;line-height:1.25;letter-spacing:0}.detail-intro p{font-size:12px;color:#62716e;margin:0 0 22px}.mode-switch{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid #cad6d3;margin-bottom:23px;background:#fff}.mode{height:39px;border:0;border-right:1px solid #cad6d3;background:#fff;color:#687977;font-size:12px}.mode:last-child{border-right:0}.mode.active{background:#2e4847;color:#fff}.section-title{display:flex;justify-content:space-between;align-items:baseline;border-bottom:1px solid #dce4e2;padding-bottom:9px;margin-bottom:12px}.section-title h3{margin:0;font-size:14px}.section-title span{font-size:10px;color:#8a9996}.specs{margin:0;display:grid;grid-template-columns:1fr 1fr;gap:13px 18px}.specs div{border-bottom:1px solid #e2e8e6;padding:0 0 9px}.specs dt{font-size:10px;color:#84918e}.specs dd{font-size:13px;font-weight:650;margin:2px 0 0}.action{display:flex;align-items:center;justify-content:space-between;background:#a45e38;color:#fff;border:1px solid #a45e38;width:100%;height:42px;padding:0 13px;font-size:12px;margin-top:20px}.action span{font-size:18px}.caption{font-size:10px;color:#84918e;line-height:1.6;margin:11px 0 0}.layer-list{padding:0;margin:0;list-style:none}.layer-list li{display:grid;grid-template-columns:17px 1fr;gap:11px;padding:9px 0;border-bottom:1px solid #e2e8e6}.swatch{display:block;width:17px;height:17px;border:1px solid #ffffffaa;margin-top:2px}.swatch.veneer{background:#985b38}.swatch.core{background:#c4b395}.swatch.trim{background:#6d3f29}.swatch.back{background:#ad7754}.layer-list strong{font-size:12px}.layer-list p{font-size:10px;color:#778784;margin:2px 0 0}.step-buttons{display:grid;grid-template-columns:repeat(5,1fr);gap:6px}.step{height:34px;background:#fff;border:1px solid #cad6d3;color:#6f807d;font-size:12px}.step.active{background:#a45e38;border-color:#a45e38;color:#fff}.step-detail{min-height:145px;padding:16px;margin-top:12px;background:#eef3f1;border-left:3px solid #a45e38}.step-number{font-size:10px;color:#9a684f;letter-spacing:.08em}.step-detail h4{margin:5px 0;font-size:15px}.step-detail p{font-size:11px;color:#60716e;margin:0;line-height:1.65}.source-note{margin-top:26px;padding-top:17px;border-top:1px solid #dce4e2}.source-note strong{font-size:11px}.source-note p{font-size:10px;color:#899794;margin:5px 0}.dialog-header{display:flex;justify-content:space-between;align-items:center;padding:11px 14px;background:#f8faf9;border-bottom:1px solid #d6dfdd;font-size:13px}.drawing-wrap{overflow:auto;max-height:calc(90vh - 60px);background:#e9eeec}.drawing-wrap img{display:block;max-width:none;width:100%;height:auto}dialog{width:min(1180px,96vw);max-height:90vh;border:0;padding:0;box-shadow:0 18px 60px #172d2d66}dialog::backdrop{background:#1c2b2bb8}@media(max-width:900px){.layout{display:block}.viewer{height:60vh;min-height:440px}.detail{border-left:0;border-top:1px solid #d6dfdd;padding:24px 20px}.viewer-heading{top:17px;left:18px}.viewer-heading h1{font-size:27px}.viewer-bottom{left:18px;right:18px;bottom:14px;font-size:10px}.viewer-bottom span:last-child{max-width:130px;text-align:right}}@media(max-width:420px){.topbar{height:60px;padding:0 13px}.layout{min-height:calc(100vh - 60px)}.viewer{height:55vh;min-height:380px}.viewer-heading h1{font-size:25px}.viewer-bottom{display:block}.viewer-bottom span{display:block;text-align:left!important;max-width:none!important}.viewer-bottom span:last-child{margin-top:2px}.detail{padding:21px 17px}}.explosion-control{padding:10px 12px 9px;background:#edf3f1;border:1px solid #d2ddda;margin-bottom:13px}.explosion-control label{display:flex;justify-content:space-between;align-items:center;font-size:11px;color:#3d5550;font-weight:650}.explosion-control output{font-size:12px;color:#a45e38}.explosion-control input{width:100%;margin:10px 0 1px;accent-color:#a45e38;cursor:pointer}.range-labels{display:flex;justify-content:space-between;color:#82928f;font-size:10px}.window-control{position:absolute;left:28px;right:28px;bottom:56px;max-width:340px;margin:0;background:#f8fbfaf2;box-shadow:0 3px 15px #243f3910}.window-control input{min-height:28px;margin:4px 0 0;touch-action:pan-y}.window-control[hidden]{display:none}.viewer.facade-mode #scene{bottom:150px}.replay-button{width:100%;height:36px;border:1px solid #a45e38;background:#fff;color:#8f4c2c;margin-top:12px;font-size:11px}.replay-button:hover{background:#f7eee9}.swatch.stone{background:#b9bbb8}.swatch.burned{background:#8d9692}.swatch.mortar{background:#aab5b0}.swatch.wall{background:#747f7d}.drawing-wrap{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;padding:8px}.drawing-wrap img{width:100%;height:auto;background:#fff}@media(max-width:900px){.viewer #scene{top:78px}.drawing-wrap{grid-template-columns:1fr}}@media(max-width:900px){.viewer.facade-mode{min-height:530px}.window-control{left:18px;right:18px;bottom:58px;max-width:none}}
