:root{--ink:#18352f;--muted:#64716a;--teal:#176b5a;--line:#dce4df;--paper:#fff;--bg:#f4f6f2;--amber:#98621a}*{box-sizing:border-box}body{margin:0;background:var(--bg);font:15px/1.65 'Microsoft YaHei',system-ui,sans-serif;color:var(--ink)}header{height:76px;background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50;display:flex;align-items:center;justify-content:space-between;padding:0 34px;gap:15px}.brand{font-size:25px;font-weight:750;letter-spacing:2px;text-decoration:none;color:var(--teal)}.brand small{font-size:12px;letter-spacing:1px;color:var(--muted);margin-left:12px}#identity{display:flex;align-items:center;gap:12px}.identity-name{background:#e7f2ed;border:1px solid #a9cfc0;border-radius:8px;padding:6px 15px;font-size:16px;font-weight:700}button,.button{border:1px solid var(--line);border-radius:7px;background:#fff;color:var(--ink);padding:8px 14px;cursor:pointer;font:inherit;text-decoration:none;display:inline-block}button:hover,.button:hover{border-color:var(--teal);background:#edf6f1}button.primary{background:var(--teal);color:#fff;border-color:var(--teal)}button:disabled{opacity:.5;cursor:wait}button.danger{color:#a1372c}input,textarea,select{width:100%;padding:9px 11px;border:1px solid #cbd7d0;border-radius:6px;background:white;font:inherit;color:var(--ink)}textarea{min-height:100px;resize:vertical}label{display:block;font-size:13px;color:var(--muted);margin:10px 0 5px}input[type=checkbox]{width:auto;margin-right:7px}.layout{display:grid;grid-template-columns:220px minmax(0,1fr);min-height:calc(100vh - 76px)}nav{padding:28px 18px;border-right:1px solid var(--line);background:#edf2ed;position:sticky;top:76px;height:calc(100vh - 76px)}nav button{display:block;width:100%;text-align:left;background:transparent;border:0;margin:5px 0;padding:12px 16px}nav button.active{background:#fff;color:var(--teal);font-weight:bold;box-shadow:0 2px 8px #18352f08}.nav-label{font-size:11px;letter-spacing:2px;color:var(--muted);padding:16px}nav .foot{position:absolute;bottom:20px;left:26px;right:20px;font-size:12px;color:var(--muted)}main{padding:30px 36px;max-width:1680px;width:100%;margin:auto}h1{font-size:27px;margin:0 0 5px;font-weight:650}h2{font-size:19px;margin:0 0 12px}h3{font-size:16px;margin:0 0 6px}p{margin:8px 0}.sub,.muted{color:var(--muted)}.eyebrow{font-size:11px;letter-spacing:2px;color:var(--teal);margin-bottom:8px}.toolbar{display:flex;gap:9px;align-items:center;flex-wrap:wrap;margin:18px 0}.toolbar input,.toolbar select{width:auto;flex:1;min-width:160px}.card{background:white;border:1px solid var(--line);border-radius:12px;padding:22px;margin:18px 0}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.grid .card{margin:0}.triple{grid-template-columns:repeat(3,minmax(0,1fr))}.notice{border-left:3px solid #d6a65b;background:#fff8e9;padding:10px 14px;color:#78531b;margin:12px 0;font-size:13px}.good{border-left-color:#339c7b;background:#edf8f2;color:#236d54}.badge{font-size:12px;padding:3px 8px;background:#eef3ef;border-radius:4px;display:inline-block;margin:2px 4px 2px 0}.badge.warn{background:#fff1d8;color:#875717}.empty{padding:45px 20px;text-align:center;border:1px dashed #bccdc0;border-radius:10px;margin:20px 0;color:var(--muted)}table{width:100%;border-collapse:collapse;font-size:13px}th{text-align:left;color:var(--muted);font-weight:500;background:#f7f9f6}th,td{padding:13px 10px;border-bottom:1px solid var(--line);vertical-align:top}td.title{min-width:200px;max-width:400px;word-break:break-word}.drop{padding:24px;border:2px dashed #bad0c3;border-radius:9px;background:#f6faf7}.split{display:grid;grid-template-columns:250px minmax(0,1fr);gap:22px}.filters{align-self:start;position:sticky;top:96px}.filters .card{margin-top:0;padding:18px}.result{padding:22px;border:1px solid var(--line);border-radius:10px;background:#fff;margin-bottom:14px}.source{font-size:12px;color:var(--muted);margin:6px 0 12px}.excerpt{white-space:pre-wrap;line-height:1.85;font-size:14px;overflow-wrap:anywhere;max-height:350px;overflow:auto;background:#f9faf8;padding:14px;border-radius:6px}.translation{border-left:3px solid #a5ccb9;padding:12px;background:#f1f8f3;white-space:pre-wrap}.auth{max-width:490px;margin:8vh auto;padding:36px}.auth h1{margin-bottom:12px}.stat{font-size:28px;font-weight:650}.resource{font-size:12px;color:var(--muted)}#toast{position:fixed;right:24px;top:84px;z-index:100;max-width:550px;padding:12px 18px;background:#183f33;color:white;border-radius:8px;display:none;box-shadow:0 8px 30px #0002}#modal{position:fixed;inset:76px 0 0;background:#10291e77;z-index:40;overflow:auto;padding:24px}#modal[hidden]{display:none}.dialog{background:var(--bg);max-width:1250px;margin:auto;border-radius:12px;padding:24px;min-height:200px}.dialog-head{display:flex;justify-content:space-between;align-items:center;gap:20px}.preview-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.preview-grid img{width:100%;background:white}.feedback{border-bottom:1px solid var(--line);padding:10px 0}.bookpick{max-height:220px;overflow:auto}.bookpick label{color:var(--ink);font-size:12px;padding:4px}.line{display:flex;gap:10px;align-items:center}.line>*{flex:1}.pill{color:var(--teal);font-size:12px}.packet-row{border-top:1px solid var(--line);padding:20px 0}.hidden{display:none!important}details{margin:10px 0}summary{cursor:pointer;color:var(--teal)}.job{border-bottom:1px solid var(--line);padding:10px 0;font-size:13px}.flow{display:flex;gap:12px;flex-wrap:wrap;font-size:12px;color:var(--teal);margin:16px 0}.nowrap{white-space:nowrap}@media(max-width:950px){header{padding:0 15px}.brand small{display:none}.layout{grid-template-columns:150px 1fr}nav{padding:20px 8px}main{padding:22px 18px}.split{grid-template-columns:1fr}.filters{position:static}.grid,.preview-grid{grid-template-columns:1fr}.identity-name{font-size:13px}#identity{gap:4px}header button{padding:6px;font-size:12px}}
@media(max-width:650px){header{height:116px;display:block;padding:8px 12px}.brand{font-size:20px;white-space:nowrap;display:block;height:33px}.brand small{display:inline;font-size:11px}#identity{justify-content:space-between;gap:5px;flex-wrap:wrap}.identity-name{padding:4px 8px;white-space:nowrap}#identity .badge{font-size:11px;margin:0}#identity button{font-size:11px;padding:5px}.layout{display:block;min-height:calc(100vh - 116px)}nav{position:sticky;top:116px;z-index:30;height:auto;display:flex;gap:3px;overflow:auto;padding:6px;border-right:0;border-bottom:1px solid var(--line)}nav button{width:auto;flex:none;white-space:nowrap;padding:7px 9px;margin:0;font-size:12px}nav .nav-label,nav .foot{display:none}main{padding:20px 14px}.card{padding:16px}h1{font-size:24px}.toolbar{gap:7px}.toolbar button{font-size:13px}#modal{inset:116px 0 0;padding:8px}.dialog{padding:14px}.preview-grid{display:block}#toast{top:122px;left:12px;right:12px}.flow{gap:6px;font-size:11px}.auth{margin:30px 14px}.filters .card{padding:14px}}
/* Global assistant: independent of navigation and document modals. */
#assistant-dock[hidden],#assistant-panel[hidden]{display:none!important}
#assistant-launcher{position:fixed;right:24px;bottom:24px;z-index:65;border:0;border-radius:28px;padding:14px 23px;background:var(--teal);color:white;box-shadow:0 5px 22px #18352f33;font-weight:700}
#assistant-launcher:hover{background:#125344}
#assistant-panel{position:fixed;right:24px;top:88px;bottom:92px;width:min(500px,calc(100vw - 32px));z-index:60;display:flex;flex-direction:column;background:var(--bg);border:1px solid #b9cec3;border-radius:16px;box-shadow:0 12px 40px #18352f30;overflow:hidden}
.assistant-panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 18px;background:white;border-bottom:1px solid var(--line);flex:none}
.assistant-panel-head strong{font-size:19px}.assistant-panel-head .muted{font-size:12px}
#assistant-content{overflow:auto;overscroll-behavior:contain;padding:16px;min-height:0;overflow-wrap:anywhere}
#assistant-content .card{padding:16px;margin:12px 0}#assistant-content h2{font-size:16px}#assistant-content .toolbar{gap:6px}#assistant-content button{font-size:13px;padding:7px 10px}
#assistant-content textarea{min-height:110px}#assistant-content .excerpt{max-height:260px}main{padding-bottom:100px}
@media(max-width:650px){#assistant-panel{top:124px;bottom:80px;left:8px;right:8px;width:auto;border-radius:12px}#assistant-launcher{right:14px;bottom:16px;padding:11px 18px}#assistant-content{padding:10px}.assistant-panel-head{padding:10px 14px}}

/* Keep all navigation actions reachable on short desktop windows. */
@media(min-width:651px){nav{overflow-y:auto;overscroll-behavior:contain}}

/* 影像库 */
.media-row{display:flex;gap:14px;align-items:flex-start;padding:12px;border:1px solid var(--color-border-tertiary);border-radius:var(--border-radius-lg);margin-bottom:10px;background:var(--color-background-secondary)}
.media-check{display:flex;align-items:center;gap:6px;font-size:12px;flex-shrink:0}
.media-thumb{width:72px;height:72px;object-fit:cover;border-radius:8px;border:1px solid var(--color-border-tertiary);display:flex;align-items:center;justify-content:center;font-size:11px;color:var(--color-text-secondary);background:var(--color-background-tertiary);flex-shrink:0}
.media-thumb.video{font-weight:500}
.media-info{flex:1;min-width:0}
.media-info strong{font-size:14px}

/* 影像库标签候选 */
.tag-chip{display:inline-block;padding:2px 10px;margin:2px 4px 2px 0;border:1px solid var(--color-border-tertiary);border-radius:999px;font-size:12px;cursor:pointer;background:var(--color-background-secondary)}
.tag-chip:hover{border-color:var(--color-border-primary)}

/* 影像测量工作台 */
.meas-layout{display:flex;gap:16px;align-items:flex-start}
.meas-canvas{flex:1;min-width:0}
.meas-canvas-inner{position:relative;display:inline-block;max-width:100%}
.meas-canvas-inner img{max-width:100%;height:auto;display:block;border-radius:8px;border:1px solid var(--color-border-tertiary);cursor:crosshair}
#meas-overlay{position:absolute;inset:0;pointer-events:none}
.meas-marker{position:absolute;width:12px;height:12px;margin:-6px 0 0 -6px;border-radius:50%;background:var(--color-info,#378ADD);border:2px solid #fff;box-shadow:0 0 0 1px var(--color-border-primary)}
.meas-calib-line{position:absolute;inset:0;pointer-events:none}
.meas-panel{width:340px;flex-shrink:0}
.meas-element-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.meas-points{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:8px}
.meas-points button{font-size:12px;padding:4px 10px}
.meas-value strong{font-size:16px}
.tbl{width:100%;border-collapse:collapse;margin:10px 0}
.tbl th,.tbl td{border:1px solid var(--color-border-tertiary);padding:6px 10px;text-align:left;font-size:13px}

/* 测量报告（打印/导出） */
.report-sheet{max-width:900px;margin:0 auto;background:var(--paper,#fff);padding:28px;border:1px solid var(--line,#dce4df);border-radius:10px}
.report-head{border-bottom:2px solid var(--teal,#176b5a);padding-bottom:12px;margin-bottom:18px}
.report-meta{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:12px;margin:14px 0}
.report-meta label{font-size:11px;color:var(--muted);margin:0}
.report-meta div{font-size:14px}
.limits{padding-left:20px;color:var(--muted,#64716a)}
.no-print{}
@media print{
  header,nav,#toast,#assistant-dock,#assistant-launcher,#assistant-panel,.no-print,.toolbar{display:none!important}
  body{background:#fff}
  .report-sheet{border:0;padding:0;max-width:none}
  main{padding:0}
}

/* 窄屏：测量工作台纵向堆叠 */
@media(max-width:900px){
  .meas-layout{flex-direction:column}
  .meas-panel{width:100%}
}

/* 首页田字格四模块入口 */
.hub-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:8px}
.hub-tile{display:flex;flex-direction:column;align-items:flex-start;gap:10px;text-align:left;padding:26px 24px;border:1px solid var(--line);border-radius:14px;background:#fff;cursor:pointer;transition:box-shadow .15s,border-color .15s}
.hub-tile:hover{border-color:var(--teal);box-shadow:0 8px 24px #18352f14}
.hub-key{width:46px;height:46px;border-radius:11px;color:#fff;font-size:22px;font-weight:700;display:flex;align-items:center;justify-content:center}
.hub-tile strong{font-size:20px}
.hub-desc{color:var(--muted);font-size:13px;line-height:1.6}
.hub-go{color:var(--teal);font-size:13px;font-weight:700}
@media(max-width:650px){.hub-grid{grid-template-columns:1fr 1fr;gap:10px}.hub-tile{padding:16px 14px}.hub-key{width:38px;height:38px;font-size:18px}}

/* 问卷星式表单 */
.wj-sheet{max-width:860px;margin:0 auto;padding:8px 24px 24px}
.wj-item{display:flex;gap:14px;padding:16px 0;border-bottom:1px dashed var(--line)}
.wj-item:last-child{border-bottom:0}
.wj-no{flex:none;width:30px;height:30px;border-radius:50%;background:var(--teal);color:#fff;font-size:14px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:2px}
.wj-body{flex:1;min-width:0}
.wj-q{font-weight:600;margin-bottom:8px}
.wj-a{max-width:560px}
.wj-sec{margin:20px 0 4px;font-size:13px;font-weight:700;color:var(--teal);letter-spacing:1px;border-left:3px solid var(--teal);padding-left:10px}
.wj-sheet input,.wj-sheet select{max-width:560px}

/* 分区点选 chip */
.chip-pick{display:flex;flex-wrap:wrap;gap:6px;margin-top:4px}
.chip{display:inline-block;padding:4px 12px;border:1px solid var(--line);border-radius:999px;font-size:13px;cursor:pointer;background:#fff}
.chip:hover{border-color:var(--teal)}
.chip.on{background:var(--teal);color:#fff;border-color:var(--teal)}