:root{--portal-ink:#183d40;--portal-teal:#176e6b;--portal-line:#d7e4df;--portal-muted:#607878;--portal-paper:#f5f7f3}
body.portal-page{background:var(--portal-paper);color:var(--portal-ink);font-family:"Microsoft YaHei",system-ui,sans-serif;margin:0}
.portal-page *{box-sizing:border-box}.portal-shell{max-width:1360px;margin:0 auto;padding:45px 40px 70px;min-height:70vh}.portal-page .site-header{background:#fff;border-bottom:1px solid var(--portal-line);position:relative;gap:20px;padding:20px 3%;flex-wrap:wrap}.site-nav{flex-wrap:wrap}.portal-page h1,.portal-page h2,.portal-page h3{color:var(--portal-ink);line-height:1.3}.portal-page h1{font-size:40px;margin:10px 0 20px;letter-spacing:-1px}.portal-page h2{font-size:25px}.portal-page p{line-height:1.9}.portal-page a{color:var(--portal-teal)}
.portal-hero{display:grid;grid-template-columns:1.15fr .85fr;gap:70px;align-items:center;padding:25px 0 60px}.portal-hero h1{font-size:clamp(38px,4vw,62px);line-height:1.22;font-weight:650;letter-spacing:-2px}.portal-hero h1 em{font-style:normal;color:var(--portal-teal)}.hero-copy{font-size:19px;max-width:620px;color:#4c676a}.portal-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap;margin:24px 0}.portal-button,.portal-secondary{display:inline-flex;align-items:center;justify-content:center;min-height:44px;border-radius:5px;padding:12px 22px;font:inherit;font-weight:600;text-decoration:none;cursor:pointer;border:1px solid var(--portal-teal);line-height:1.5}.portal-button,.portal-page a.portal-button{background:var(--portal-teal);color:white}.portal-secondary{background:#fff;color:var(--portal-teal)}button:disabled{cursor:not-allowed;opacity:.5}.portal-button:hover:not(:disabled){background:#105a58}.portal-link{text-decoration:underline;text-underline-offset:5px}.portal-muted{color:var(--portal-muted);font-size:14px}.portal-lead{font-size:19px;color:var(--portal-muted);max-width:740px}.road-art{border:1px solid #c4d8d0;background:#e3ece3;border-radius:8px;overflow:hidden;box-shadow:0 22px 45px #223e3110}.road-art svg{display:block;width:100%;max-height:430px}.art-caption{display:block;padding:22px 24px 0;font-size:11px;letter-spacing:2px;color:#506d67}.art-legend{display:flex;gap:22px;padding:18px 24px;background:#eef3e9;font-size:13px}.art-legend span{display:flex;align-items:center;gap:6px}.art-legend i{width:9px;height:9px;border-radius:50%}.legend-road{background:#4a6564}.legend-crack{background:#ed8c60}.legend-repair{background:#d9ae50}.art-legend small{margin-left:auto;color:#6e8380}.portal-feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px}.portal-feature-grid>article{padding:26px 0;border-top:1px solid #bdcec7}.portal-feature-grid b{font-size:12px;color:var(--portal-teal);letter-spacing:1px}.portal-feature-grid p{color:var(--portal-muted);font-size:15px}.portal-section{margin-top:42px}.portal-card{background:white;border:1px solid var(--portal-line);border-radius:7px;padding:28px;min-width:0}.article-link{text-decoration:none}.article-link>span{font-size:12px;letter-spacing:1px}.article-link h3{font-size:22px}.portal-banner{display:flex;justify-content:space-between;align-items:center;gap:30px;margin-top:50px;padding:32px;background:#e2eeea;border:1px solid #c4dcd4;border-radius:6px}.portal-banner h2{margin-top:0}.portal-banner p{margin-bottom:0}.portal-footer{max-width:1360px;margin:auto;border-top:1px solid var(--portal-line);padding:25px 40px 40px;color:var(--portal-muted);font-size:13px;display:flex;justify-content:space-between;gap:20px}.portal-footer nav{display:flex;gap:20px;flex-wrap:wrap}
.portal-prose{max-width:820px;margin:15px auto;background:white;padding:45px;border:1px solid var(--portal-line);border-radius:7px}.portal-prose h2{margin-top:38px}.portal-prose p{color:#4b6466;line-height:2}.related-links{display:flex;gap:20px;flex-wrap:wrap;margin-top:35px}.portal-auth{display:grid;grid-template-columns:1.2fr 1fr;gap:85px;align-items:center;padding:30px 35px}.portal-auth h1{font-size:45px;max-width:570px}.portal-benefits{margin-top:35px;color:var(--portal-muted);border-top:1px solid var(--portal-line);padding-top:20px}.portal-form{display:grid;gap:18px}.portal-form label,.portal-filter label{display:grid;gap:8px;color:#426063;font-size:14px}.portal-form input:not([type=checkbox]),.portal-form select,.portal-form textarea,.portal-filter select{width:100%;padding:11px 12px;border:1px solid #c8d9d2;border-radius:4px;font:inherit;background:white;color:var(--portal-ink);min-width:0}.portal-form input:focus,.portal-form textarea:focus,select:focus{outline:2px solid #7abbb0;outline-offset:2px}.portal-check{display:flex!important;flex-direction:row;align-items:flex-start;gap:10px;line-height:1.7;font-size:14px}.portal-check input[type=checkbox]{width:17px;height:17px;flex:none;margin-top:4px;accent-color:var(--portal-teal)}.portal-error{padding:12px;background:#fff0eb;color:#a7493b;border:1px solid #efd4ca;border-radius:4px}.portal-two{display:grid;grid-template-columns:1fr 1fr;gap:25px}.portal-page-heading{display:flex;justify-content:space-between;align-items:center;gap:30px;margin-bottom:28px}.portal-page-heading p{color:var(--portal-muted);margin-bottom:0}.portal-filter{display:flex;gap:20px;flex-wrap:wrap;align-items:end}.portal-filter label{min-width:160px}.portal-callout{background:#f1f6f3;padding:15px;margin-top:20px;color:var(--portal-muted);font-size:14px;line-height:1.8}.history-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:25px;margin-top:25px}.history-card{background:white;border:1px solid var(--portal-line);border-radius:6px;overflow:hidden;min-width:0}.history-card>img{display:block;width:100%;height:auto;max-height:320px;object-fit:contain;background:#e7eeea}.history-card-content{padding:25px}.history-card-content h2{font-size:23px;margin:14px 0 8px}.history-card-content p{margin:9px 0;overflow-wrap:anywhere}.history-plans{display:flex;gap:15px;flex-wrap:wrap;padding:10px 0;font-size:14px}.portal-pill{display:inline-block;background:#e8f1ec;color:var(--portal-teal);font-size:12px;padding:6px 10px;border-radius:3px}.portal-text-button{background:transparent;border:0;padding:8px 4px;font:inherit;font-size:14px;color:var(--portal-teal);cursor:pointer;text-decoration:underline;text-underline-offset:4px}.portal-text-button.danger{color:#a45248;margin-left:10px}.portal-actions.compact{margin:12px 0;gap:16px;font-size:14px}.portal-empty{padding:55px 25px;background:white;border:1px dashed #bfcec7;border-radius:7px;grid-column:1/-1;color:var(--portal-muted);text-align:center}.portal-pagination{display:flex;align-items:center;justify-content:center;gap:24px;margin-top:28px}.portal-dialog{max-width:550px;width:calc(100% - 36px);padding:30px;border:1px solid var(--portal-line);border-radius:9px;color:var(--portal-ink);box-shadow:0 24px 70px #102e3b33}.portal-dialog::backdrop{background:#0c282e77}.portal-dialog img{display:block;max-width:100%;margin:auto}.plan-price{font-size:38px;font-weight:650;line-height:1.4!important;color:var(--portal-teal)}.featured-plan{border:2px solid var(--portal-teal)}.membership-cards ul{padding-left:22px;line-height:2.4;color:var(--portal-muted)}.portal-table{width:100%;border-collapse:collapse;text-align:left;font-size:14px;white-space:nowrap}.portal-table th{font-weight:500;color:var(--portal-muted);background:#f4f7f4}.portal-table td,.portal-table th{padding:13px 12px;border-bottom:1px solid var(--portal-line)}.table-scroll{overflow-x:auto}.portal-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:28px}.portal-stats strong{display:block;font-size:36px;margin-top:10px;color:var(--portal-teal)}.portal-stats span{font-size:14px;color:var(--portal-muted)}#road-map{max-width:100%;height:auto;margin-top:20px;border:1px solid var(--portal-line)}.reconstruction-row{border-top:1px solid var(--portal-line);padding:18px 0}.reconstruction-row span{display:block}.plan-scroll{width:100%;max-height:75vh;overflow:auto;background:#e5eeea;border:1px solid var(--portal-line);margin-top:20px}.plan-stage{width:100%;line-height:0}.plan-stage canvas{display:block;width:100%;height:auto;touch-action:none}.annotation-row{display:inline-flex;gap:8px;border:1px solid var(--portal-line);border-radius:4px;margin:12px 12px 12px 0;padding:6px}.portal-workspace-status{border:1px solid #c9ded7;background:#edf6f1;padding:14px;margin-bottom:20px;border-radius:4px;font-size:13px;color:#285c59}.portal-workspace-status p{margin:8px 0}.portal-workspace-status a,.portal-history-tip a{color:var(--portal-teal);text-decoration:underline}.portal-upload-details{margin-bottom:20px}.portal-upload-details .portal-form{padding-top:15px}.portal-upload-details .portal-two{gap:10px}.portal-history-tip{font-size:12px;color:#3f706b;line-height:1.8}.portal-upload-details .portal-check input{width:17px;height:17px}.portal-upload-details .portal-check span{display:block;line-height:1.8}#portal-notice{position:fixed;bottom:26px;left:50%;transform:translateX(-50%);z-index:10000;max-width:90vw;padding:15px 24px;border-radius:7px;background:#183f40;color:white;box-shadow:0 6px 25px #1233;font-size:14px;line-height:1.7}#portal-notice.error{background:#8e443b}[hidden]{display:none!important}
@media(max-width:1000px){.portal-shell{padding:28px 24px 55px}.portal-hero{gap:30px}.portal-auth{gap:35px;padding:20px 0}.portal-auth h1{font-size:35px}.portal-feature-grid{gap:18px}.portal-card{padding:22px}.portal-page .site-header{gap:15px}.site-nav{gap:14px}.portal-page-heading h1{font-size:34px}}
@media(max-width:700px){.portal-shell{padding:25px 16px 40px}.portal-hero{grid-template-columns:1fr;padding:12px 0 35px;gap:25px}.portal-hero h1{font-size:39px}.hero-copy{font-size:17px}.road-art svg{max-height:280px}.portal-feature-grid,.portal-two,.history-grid,.portal-auth{grid-template-columns:1fr}.portal-feature-grid{gap:12px}.portal-banner,.portal-page-heading{align-items:flex-start;flex-direction:column}.portal-banner{padding:23px}.portal-auth{padding:5px 0;gap:22px}.portal-auth h1{font-size:32px}.portal-benefits{display:none}.portal-prose{padding:25px 21px}.portal-page h1{font-size:32px}.portal-page h2{font-size:23px}.portal-stats{grid-template-columns:repeat(2,1fr);gap:12px}.portal-footer{flex-direction:column;padding:25px 18px}.portal-page .site-header{padding:15px;gap:14px}.portal-page .site-brand small{font-size:9px}.portal-page .site-nav{order:3;width:100%;overflow:auto;flex-wrap:nowrap;white-space:nowrap;font-size:13px;padding-bottom:5px}.portal-page .logout-form{margin-left:auto}.portal-filter{gap:14px}.portal-filter label{min-width:130px;flex:1}.portal-actions{gap:14px}.portal-button,.portal-secondary{padding:11px 16px}.plan-price{font-size:32px}.portal-upload-details .portal-two{grid-template-columns:1fr 1fr}}

.demo-layout{display:grid;grid-template-columns:minmax(0,2.1fr) minmax(260px,1fr);gap:28px;align-items:start}.demo-player{padding:16px}.demo-player video{display:block;width:100%;height:auto;aspect-ratio:4/3;background:#eef2ed;border-radius:5px}.demo-player select{max-width:100%;padding:8px;border:1px solid var(--portal-line);background:white}.demo-topics{line-height:2.3;padding-left:22px}.demo-home{display:grid;grid-template-columns:1fr 1fr;gap:45px;align-items:center}.demo-cover{position:relative;display:block;overflow:hidden;border-radius:7px;border:1px solid var(--portal-line)}.demo-cover img{display:block;width:100%;height:auto}.demo-cover span{position:absolute;bottom:0;left:0;right:0;padding:18px;background:#173c3cee;color:#fff;text-align:center}.model-file-row{display:flex;gap:12px;align-items:center;border-top:1px solid var(--portal-line);font-size:13px}.model-file-row span{flex:1;overflow-wrap:anywhere}.model-file-row button{flex:none}.portal-form progress,#model-build-progress{width:100%;height:12px;accent-color:var(--portal-teal)}.model-toolbar{gap:12px}.model-toolbar label{display:flex;gap:6px;align-items:center;font-size:14px}.model-toolbar .portal-button{margin-left:auto}.model-view-grid{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:24px}.model-map-wrap{height:clamp(380px,65vh,800px);width:100%;border:1px solid #bacdc5;position:relative;overflow:hidden;border-radius:6px;background:#e4ebe6}.model-map-wrap canvas{display:block;touch-action:none;cursor:grab}.model-map-wrap canvas:active{cursor:grabbing}.map-position{font:13px/1.7 monospace;overflow-wrap:anywhere;min-height:3em;color:#557370}.model-summary{display:flex;flex-wrap:wrap;gap:8px}.model-summary span{border:1px solid var(--portal-line);border-radius:4px;padding:9px;background:white;font-size:13px}.model-defects{padding:20px;align-self:start;max-height:85vh;overflow:auto}.model-defects h2{font-size:21px}.model-defect-button{display:block;width:100%;text-align:left;border:0;border-bottom:1px solid var(--portal-line);padding:14px 4px;background:white;color:var(--portal-teal);cursor:pointer;font-size:13px}.model-defect-button:hover{background:#edf5ef}.model-defects .portal-callout{font-size:13px;overflow-wrap:anywhere}.model-sources{display:flex;flex-direction:column;gap:12px;overflow-wrap:anywhere}#map-control-list{font-size:13px;max-height:330px;overflow:auto}#map-calibration-result{font-size:14px;line-height:1.8}.portal-card summary{cursor:pointer;font-size:18px;line-height:1.8}#search-origin,#search-sitemap{overflow-wrap:anywhere}.portal-page .site-nav{gap:16px;font-size:14px}
@media(max-width:1000px){.demo-layout,.model-view-grid{grid-template-columns:minmax(0,1fr)}.model-defects{max-height:none}.model-defects #model-defect-list{max-height:330px;overflow:auto}}
@media(max-width:700px){.demo-home{grid-template-columns:1fr;gap:20px}.demo-player{padding:8px}.demo-layout{gap:16px}.model-map-wrap{height:55vh;min-height:330px}.model-toolbar{gap:8px}.model-toolbar .portal-button{margin-left:0}.model-toolbar .portal-secondary{padding:8px 12px}.portal-page .site-nav{max-width:100%;gap:15px}}

.model-view-grid>section,.model-map-wrap{min-width:0}.model-map-wrap canvas{max-width:100%}

/* Keep the full system name and navigation within the header at narrow widths. */
.site-header.portal-site-header{height:auto;min-height:84px;flex-wrap:wrap;padding-block:16px}.portal-site-header .site-nav{min-height:36px}