:root{--navy:#142c4f;--blue:#316de4;--green:#259b86;--ink:#263c59;--muted:#8996a8;--line:#e7edf5;--bg:#f4f7fb}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:13px/1.65 'Microsoft YaHei','Noto Sans SC',system-ui,sans-serif}button,input,select{font:inherit}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #8ab2ff;outline-offset:2px}a{color:var(--blue);text-decoration:none}button{border:0}.boot{padding:70px;color:#8798b3}.header{height:72px;background:var(--navy);padding:0 28px;display:flex;align-items:center;gap:13px;color:#d3dfef}.brand{font-size:21px;font-weight:700;border:1px solid #496685;background:#28496f;border-radius:10px;width:40px;height:40px;display:grid;place-items:center;color:white}.header h1{font-size:16px;font-weight:500;letter-spacing:1px;margin:0}.header small{font-size:9px;color:#8ca3c2;letter-spacing:2px}.header a{margin-left:auto;color:#b8cae2;font-size:11px}.header .version{font-size:10px;border:1px solid #3c5575;border-radius:5px;padding:5px 10px;margin-left:20px}.topline{padding:22px 28px 18px;display:flex;justify-content:space-between;gap:20px;align-items:center;background:#fff;border-bottom:1px solid var(--line)}.eyebrow{font-size:9px;letter-spacing:2px;color:#6f92c1;margin-bottom:5px}.topline h2{font-size:23px;letter-spacing:.5px;margin:0 0 3px;font-weight:600}.topline p{font-size:11px;color:#8f9baf;margin:0}.controls{display:flex;align-items:center;gap:10px}.controls label{font-size:10px;color:#93a0b3}.controls select{padding:9px 12px;border:1px solid #dfe6f1;border-radius:6px;color:#617695;background:#fff;font-size:11px}.button{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:#fff;border:1px solid #dbe4f2;border-radius:6px;padding:8px 13px;color:#68809f;font-size:11px;min-height:35px}.button:hover{background:#f4f8ff;border-color:#bdcfe9}.button.primary{background:var(--blue);color:#fff;border-color:var(--blue)}.button:disabled{cursor:not-allowed;opacity:.45}.small{font-size:10px;padding:5px 10px;min-height:28px}.text-button{background:transparent;color:var(--blue);padding:3px 0;font-size:10px}.workspace{display:grid;grid-template-columns:180px minmax(0,1fr);max-width:1900px;margin:auto}.floor-rail{border-right:1px solid var(--line);background:#fff;padding:20px 12px;min-width:0}.floor-title{display:flex;justify-content:space-between;align-items:center;font-size:11px;padding:0 9px 12px;color:#7e8da3}.floor-title span{font-size:9px;color:#a6afbc}.floor-search{width:100%;margin-bottom:13px;padding:7px 10px;border:1px solid #e6ebf2;border-radius:5px;outline:none;font-size:10px}.floor-list{max-height:790px;overflow:auto;scrollbar-width:thin;scrollbar-color:#d7e1ef transparent}.floor-button{width:100%;text-align:left;background:transparent;border-radius:6px;padding:9px 11px;color:#8a99ad;display:flex;align-items:center;justify-content:space-between;font-size:11px;margin-bottom:3px}.floor-button:hover{background:#f3f7fd;color:#5071a0}.floor-button.active{background:#eaf1ff;color:var(--blue);font-weight:600}.floor-button .mark{width:5px;height:5px;border-radius:50%;background:#e1ad65}.rail-note{color:#a2aec0;font-size:9px;padding:15px 9px 0;border-top:1px solid var(--line);margin-top:13px}.rail-note strong{color:#6882a7;font-weight:500}.main{padding:22px 24px 28px;min-width:0}.total-strip{display:flex;align-items:center;gap:22px;font-size:10px;color:#93a2b7;margin:0 0 17px;flex-wrap:wrap}.total-strip strong{font-weight:500;color:#4d6587;font-variant-numeric:tabular-nums}.total-strip .right{margin-left:auto}.main-grid{display:grid;grid-template-columns:minmax(0,1fr) 316px;gap:19px;align-items:start}.panel{background:#fff;border:1px solid var(--line);border-radius:9px;overflow:hidden;min-width:0}.panel-title{padding:16px 19px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #eef2f7;gap:10px}.panel-title h3{font-size:12px;margin:0;font-weight:600}.panel-title small{font-size:9px;color:#a1adbd}.view-tabs{display:flex;gap:4px;background:#f1f5fb;border-radius:5px;padding:3px}.view-tabs button{font-size:10px;color:#8496b1;background:transparent;padding:5px 10px;border-radius:4px}.view-tabs button.active{background:#fff;color:#3c6ab3;box-shadow:0 1px 4px #2348750c}.viewer-wrap{position:relative;background:#f5f8fd;min-height:525px}.viewer-host{width:100%;height:525px;overflow:hidden;position:relative}.viewer-host canvas{display:block;max-width:100%;touch-action:none}.canvas-note{position:absolute;top:16px;left:17px;max-width:calc(100% - 34px);font-size:9px;line-height:1.7;color:#9aaac0;pointer-events:none}.canvas-note strong{color:#607c9f;font-weight:500}.canvas-help{position:absolute;bottom:15px;left:17px;font-size:9px;color:#99abc2;pointer-events:none}.canvas-status{position:absolute;bottom:15px;right:17px;font-size:9px;color:#809abd;max-width:55%;text-align:right;pointer-events:none}.viewer-toolbar{position:absolute;right:14px;top:64px;display:grid;gap:7px}.viewer-toolbar button{background:#ffffffed;border:1px solid #e0e8f2;border-radius:6px;color:#6c86aa;font-size:10px;padding:7px 10px;box-shadow:0 2px 8px #254f7b04}.legend{position:absolute;left:17px;top:69px;display:flex;align-items:center;gap:6px;pointer-events:none;color:#9baabd;font-size:8px}.gradient{height:5px;width:62px;border-radius:5px;background:linear-gradient(90deg,#c3dbff,#2c6cdc)}.legend.concrete .gradient{background:linear-gradient(90deg,#beebe2,#208e7b)}.model-empty{position:absolute;inset:105px 30px 60px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:12px;color:#9badc5}.empty-symbol{font-size:34px;color:#b4c6dd;line-height:1}.model-empty h3{font-size:15px;color:#627d9f;font-weight:500;margin:0}.model-empty p{max-width:400px;font-size:11px;line-height:1.9;margin:0}.viewer-bottom{padding:11px 17px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:9px;color:#9ba8ba}.explode{display:flex;align-items:center;gap:8px;white-space:nowrap}.explode input{width:90px;accent-color:var(--blue)}.detail-header{margin-bottom:12px;display:flex;justify-content:space-between;align-items:center}.detail-header h3{font-size:21px;margin:0;font-weight:600}.detail-header small{font-size:9px;color:#92a2b8}.metric-card{padding:17px 19px;background:#fff;border:1px solid var(--line);border-radius:8px;margin-bottom:11px;position:relative;overflow:hidden}.metric-card:before{content:'';position:absolute;left:0;top:18px;bottom:18px;width:3px;background:#4b7fdd}.metric-card.green:before{background:#3ba48c}.metric-label{font-size:10px;color:#8e9eb5;display:flex;align-items:center;justify-content:space-between}.metric-label .badge{font-size:8px;background:#edf3ff;color:#6e92c9;padding:2px 7px;border-radius:3px}.metric-card.green .badge{background:#edf7f3;color:#76a99a}.metric-value{font-size:29px;font-weight:600;color:#365b91;letter-spacing:-.8px;line-height:1.5;margin:7px 0 4px;font-variant-numeric:tabular-nums}.metric-value small{font-size:11px;font-weight:400;color:#94a7c1;letter-spacing:0;margin-left:5px}.metric-card.green .metric-value{color:#358e7c}.metric-foot{display:flex;justify-content:space-between;color:#a4afbd;font-size:8px;gap:8px}.basis-box{padding:14px 16px;background:#fff;border:1px solid var(--line);border-radius:7px;font-size:10px;color:#98a7ba;line-height:1.9;margin:13px 0}.basis-box strong{color:#6b81a1;font-weight:500;display:block;margin-bottom:3px}.issue-box{padding:11px 14px;background:#fff7ec;border:1px solid #f5e4cd;color:#b58e57;border-radius:6px;font-size:10px;line-height:1.8;margin-bottom:11px}.scope-note{font-size:9px;line-height:1.9;color:#a7b1c0}.source-block{padding:14px 16px;background:#edf3fc;border-radius:7px;font-size:9px;color:#8a9db8;line-height:1.9}.source-block strong{font-size:10px;color:#607da7;display:block;font-weight:500;margin-bottom:5px}.source-block .model-file{overflow-wrap:anywhere;font-size:9px}.bottom-panel{margin-top:20px}.table-wrap{overflow:auto}table{border-collapse:collapse;width:100%;white-space:nowrap;text-align:left}th{background:#f9fbfe;color:#a0adc0;font-size:10px;font-weight:400;padding:11px 18px;border-bottom:1px solid var(--line)}td{border-bottom:1px solid #edf1f7;padding:12px 18px;font-size:11px;color:#7387a4;font-variant-numeric:tabular-nums}tr:last-child td{border:0}td strong{color:#506b90;font-weight:500}td small{display:block;color:#a5b0c1;font-size:9px}.child-row{background:#fbfcff}.child-row td:first-child{padding-left:36px;color:#95a8c3}.expand-button{color:#7f9bbd;background:#edf3fb;border-radius:3px;width:18px;height:18px;font-size:11px;margin-right:8px;padding:0}.table-footer{padding:12px 18px;font-size:9px;color:#a4b0c2;border-top:1px solid var(--line)}.detail-actions{display:flex;align-items:center;gap:14px}.footer{color:#b0b9c8;font-size:8px;margin-top:18px;display:flex;justify-content:space-between;gap:10px}.issue-list{padding:0 20px 20px}.issue-item{padding:16px 0;border-bottom:1px solid var(--line);font-size:11px;line-height:1.9;color:#8799b2}.issue-item:last-child{border:0}.issue-item h4{margin:0 0 4px;font-size:12px;color:#59789f;font-weight:500}.issue-item small{font-size:9px;color:#a7b2c2}.numbers{font-variant-numeric:tabular-nums}.mapping{padding:15px 20px;border-top:1px solid var(--line);font-size:10px;color:#8b9eba}.mapping summary{cursor:pointer;color:#6687b2}.mapping-grid{display:grid;grid-template-columns:1fr 1fr;gap:7px 16px;padding-top:12px;max-height:220px;overflow:auto}.mapping-row{display:flex;gap:7px;align-items:center;min-width:0}.mapping-row span{width:45%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.mapping-row select{width:55%;font-size:10px;padding:5px;border:1px solid #dfe8f5;border-radius:4px;color:#7188aa}.properties{padding:14px;font-size:10px;line-height:1.9;color:#8ca0bc;background:#fff;border:1px solid var(--line);border-radius:7px;overflow-wrap:anywhere;margin-bottom:12px}.properties strong{color:#5d7da6;font-weight:500}.hide{display:none!important}.fallback-bars{height:100%;overflow:auto;padding:100px 22px 40px}.quantity-row{display:flex;align-items:center;gap:10px;background:transparent;width:100%;font-size:9px;color:#8c9fbb;padding:4px 0;text-align:left}.quantity-row.active{color:#326fd6;font-weight:600}.quantity-row label{width:66px;flex-shrink:0;cursor:pointer}.quantity-row .bar{height:10px;background:#7fa7e8;min-width:2px;border-radius:2px;display:block}.quantity-row.active .bar{background:#2b68d5}.quantity-row .qty{font-size:8px;white-space:nowrap}.summary-modal{width:min(760px,calc(100vw - 30px));border:0;border-radius:12px;padding:0;max-height:88vh;box-shadow:0 20px 80px #142a4d44;color:var(--ink)}dialog::backdrop{background:#12294766;backdrop-filter:blur(2px)}.modal-head{display:flex;justify-content:space-between;align-items:center;padding:20px 23px;border-bottom:1px solid var(--line);position:sticky;top:0;background:white}.modal-head h3{font-size:16px;margin:0;font-weight:500}.modal-body{padding:21px 23px;color:#8094b0;font-size:11px;line-height:1.9}.modal-body pre{font:10px/1.8 monospace;background:#f5f8fd;padding:14px;white-space:pre-wrap;overflow-wrap:anywhere}.modal-body strong{color:#5d789e;font-weight:500}#message{position:fixed;bottom:25px;left:50%;transform:translate(-50%,15px);border-radius:7px;background:#284c7a;color:#fff;padding:11px 18px;font-size:11px;opacity:0;pointer-events:none;transition:.2s;z-index:100}#message.show{opacity:1;transform:translate(-50%,0)}
@media(min-width:1500px){.main-grid{grid-template-columns:minmax(0,1fr) 340px}.viewer-host{height:610px}.viewer-wrap{min-height:610px}.floor-list{max-height:880px}.metric-value{font-size:33px}.main{padding:25px 30px}.workspace{grid-template-columns:196px minmax(0,1fr)}}
@media(max-width:1100px){.main-grid{grid-template-columns:minmax(0,1fr) 270px;gap:14px}.workspace{grid-template-columns:155px minmax(0,1fr)}.main{padding:19px 18px}.topline{padding:20px}.controls{gap:7px}.controls label{display:none}.controls select{max-width:150px}.header{padding:0 20px}.metric-card{padding:15px}.metric-value{font-size:26px}.panel-title{padding:14px}.viewer-toolbar{top:95px}.source-block{font-size:8px}.floor-rail{padding:19px 9px}}
@media(max-width:880px){.topline{align-items:flex-start;flex-direction:column;gap:14px}.controls{width:100%;flex-wrap:wrap}.controls select{flex:1;max-width:none}.main-grid{grid-template-columns:minmax(0,1fr)}.detail-panel{display:grid;grid-template-columns:1fr 1fr;gap:0 12px}.detail-header{grid-column:1/-1;margin-top:7px}.detail-panel .basis-box,.detail-panel .issue-box,.detail-panel .source-block,.detail-panel .properties,.detail-panel .scope-note{grid-column:1/-1}.detail-panel .basis-box{margin:0 0 12px}.viewer-host{height:460px}.viewer-wrap{min-height:460px}.floor-list{max-height:900px}.header .version{display:none}.metric-value{font-size:30px}.canvas-status{font-size:8px}.mapping-grid{grid-template-columns:1fr}}
@media(max-width:580px){.header{height:61px;padding:0 15px;gap:10px}.brand{width:32px;height:32px;font-size:17px}.header h1{font-size:13px}.header small{font-size:7px;letter-spacing:1.5px}.header a{font-size:9px}.topline{padding:18px 15px}.topline h2{font-size:20px}.topline p{font-size:9px}.controls select{font-size:10px;min-width:0;padding:8px}.controls .button{font-size:10px;flex:1}.workspace{display:block}.floor-rail{padding:12px 15px;border:0;border-bottom:1px solid var(--line)}.floor-title{padding:0 0 7px;font-size:10px}.floor-search,.rail-note{display:none}.floor-list{display:flex;overflow:auto;gap:5px;max-height:none;padding-bottom:4px}.floor-button{flex:0 0 auto;padding:7px 12px;font-size:10px;gap:7px;margin:0;min-height:34px}.main{padding:16px 13px}.total-strip{font-size:8px;gap:5px 15px}.total-strip .right{margin-left:0;width:100%}.panel-title{padding:12px;flex-wrap:wrap}.panel-title h3{font-size:11px}.viewer-host{height:430px}.viewer-wrap{min-height:430px}.canvas-note{left:12px;top:13px;font-size:8px;max-width:78%}.legend{left:12px;top:69px}.viewer-toolbar{top:98px;right:9px}.viewer-toolbar button{font-size:9px;padding:6px}.canvas-help{left:12px;font-size:8px;bottom:12px;max-width:47%}.canvas-status{right:12px;bottom:12px;max-width:45%;font-size:8px}.viewer-bottom{font-size:8px;padding:10px 12px;flex-wrap:wrap}.explode input{width:70px}.metric-card{padding:13px;margin-bottom:9px}.metric-value{font-size:25px}.metric-label{font-size:9px}.metric-foot{font-size:7px;flex-direction:column;gap:0}.metric-label .badge{display:none}.model-empty{inset:100px 25px 50px}.model-empty h3{font-size:13px}.model-empty p{font-size:9px}.detail-header h3{font-size:20px}.detail-actions{gap:10px}.table-wrap th,.table-wrap td{padding:11px 13px}.footer{display:block;font-size:8px}.footer span{display:block;margin-top:6px}.view-tabs button{font-size:9px;padding:4px 8px}.summary-modal{max-height:90vh}.modal-body{padding:16px}.modal-head{padding:16px}.quantity-row{font-size:8px}}

@media(max-width:580px){.floor-button{width:auto}}

.gradient{background:linear-gradient(90deg,#6e4939,#ffc775)}.legend.concrete .gradient{background:linear-gradient(90deg,#284c66,#65d9cc)}

.source-groups{display:flex;flex-wrap:wrap;gap:6px;margin:12px 0}.source-groups button{padding:7px 10px;border:1px solid #d9e5f2;background:#f7faff;border-radius:5px;color:#607e9f;font-size:10px}.source-groups button:hover{background:#e1f3f0}.canvas-note{color:#97b4c7}.canvas-note strong{color:#c2dedf}.viewer-wrap{background:#101b2b}.model-file{overflow-wrap:anywhere}.model-empty{background:#101b2be8;border-radius:8px;padding:20px}

/* UI batch 01: company identity and a direct route into the model. */
.header.system-header{height:88px;padding:0 28px;gap:24px}
.company-logo{width:236px;height:60px;padding:9px 12px;object-fit:contain;flex-shrink:0;display:block;background:#fff;border-radius:4px}
.header.system-header .system-title{min-width:0;border-left:1px solid #45607d;padding-left:24px}
.header.system-header .system-title h1{font-size:22px;line-height:1.3;letter-spacing:.5px;font-weight:600;color:#fff;margin:0 0 4px}
.system-title p{font-size:13px;line-height:1.4;letter-spacing:.5px;color:#bccde1;margin:0}
@media(max-width:880px){.header.system-header{height:86px;gap:18px;padding:0 20px}.company-logo{width:150px;height:52px}.header.system-header .system-title{padding-left:18px}.header.system-header .system-title h1{font-size:19px}.system-title p{font-size:11px;letter-spacing:.2px}}
@media(max-width:580px){.header.system-header{height:auto;min-height:90px;padding:14px 15px;gap:12px}.company-logo{width:114px;height:44px;padding:6px}.header.system-header .system-title{padding-left:12px}.header.system-header .system-title h1{font-size:16px;letter-spacing:0;margin-bottom:4px}.system-title p{font-size:10px;line-height:1.5;letter-spacing:0}}

/* UI batch 02: the model starts directly beneath the page header. */
.source-list{display:flex;flex-wrap:wrap;gap:6px 20px;list-style:none;padding:0;margin:10px 0}.source-list li{padding:4px 0;color:#7690ad}.viewer-wrap{border-radius:8px 8px 0 0}.detail-header{min-height:31px}
@media(min-width:581px){.floor-rail{position:sticky;top:0;align-self:start}.floor-list{max-height:max(160px,calc(100dvh - 290px))}}