:root{--bg: #f5f6f8;--panel: #ffffff;--border: #e3e6ea;--text: #1f2329;--muted: #8a8f99;--brand: #2f6fed;--brand-weak: #eaf1ff;--ok: #1a9d54;--err: #d93939}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text)}button{cursor:pointer;border:none;border-radius:8px;padding:8px 14px;background:var(--brand);color:#fff;font-size:14px}button:disabled{opacity:.5;cursor:default}input{border:1px solid var(--border);border-radius:8px;padding:9px 12px;font-size:14px;outline:none}input:focus{border-color:var(--brand)}.app{height:100vh;display:flex;flex-direction:column}.topbar{display:flex;align-items:center;gap:18px;padding:0 18px;height:56px;background:var(--panel);border-bottom:1px solid var(--border)}.brand{font-weight:600}.nav{display:flex;gap:6px}.nav a{text-decoration:none;color:var(--muted);padding:6px 12px;border-radius:8px}.nav a.active{color:var(--brand);background:var(--brand-weak)}.spacer{flex:1}.email{color:var(--muted);font-size:13px}.logout{background:#f0f1f3;color:var(--text)}.content{flex:1;overflow:auto}.page{max-width:900px;margin:0 auto;padding:24px}.page h2{margin-top:0}.auth-wrap{height:100vh;display:grid;place-items:center}.auth-card{width:320px;background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:28px;display:flex;flex-direction:column;gap:12px}.auth-card h1{margin:0 0 8px;font-size:22px}.auth-card .error{color:var(--err);font-size:13px}.auth-card .toggle{color:var(--brand);font-size:13px;cursor:pointer;margin:4px 0 0}.dropzone{display:block;border:2px dashed var(--border);border-radius:12px;padding:40px;text-align:center;color:var(--muted);cursor:pointer;background:var(--panel);transition:border-color .15s,background .15s}.dropzone:hover{border-color:var(--brand);color:var(--brand)}.dropzone.dragover{border-color:var(--brand);background:var(--brand-weak);color:var(--brand)}.dropzone-main{font-size:15px}.dropzone-sub{font-size:13px;margin-top:6px;opacity:.8}.camera-btn{display:inline-block;margin-top:12px;padding:8px 14px;border-radius:8px;background:#f0f1f3;color:var(--text);font-size:14px;cursor:pointer}.camera-btn:hover{background:var(--brand-weak);color:var(--brand)}.jobs{list-style:none;padding:0;margin:18px 0 0}.job{display:flex;align-items:center;gap:12px;padding:10px 14px;background:var(--panel);border:1px solid var(--border);border-radius:10px;margin-bottom:8px}.job-thumb{width:40px;height:40px;border-radius:6px;object-fit:cover;flex-shrink:0}.job-thumb-doc{display:grid;place-items:center;background:var(--brand-weak);color:var(--brand);font-size:11px;font-weight:600}.job-name{font-weight:500;flex:1}.job-status{color:var(--muted);font-size:13px;text-align:right}.job.success .job-status{color:var(--ok)}.job.failed .job-status{color:var(--err)}table.docs{width:100%;border-collapse:collapse;background:var(--panel)}table.docs th,table.docs td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--border);font-size:14px}table.docs th{color:var(--muted);font-weight:500}.empty-row{text-align:center;color:var(--muted);padding:24px}.doc-row{cursor:pointer}.doc-row:hover td{background:var(--brand-weak)}.search-bar{display:flex;gap:10px;margin-bottom:16px}.search-bar input{flex:1}.btn-ghost{background:#f0f1f3;color:var(--text)}.btn-sm{padding:5px 10px;font-size:13px}.btn-danger{background:var(--err)}.row-actions{display:flex;gap:8px;white-space:nowrap}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000073;display:grid;place-items:center;z-index:100;padding:24px}.modal-card{position:relative;background:var(--panel);border-radius:14px;width:min(960px,100%);max-height:90vh;overflow:hidden;box-shadow:0 20px 60px #00000040}.modal-close{position:absolute;top:10px;right:10px;z-index:1;background:#0000000f;color:var(--text);width:30px;height:30px;padding:0;border-radius:50%}.modal-body{display:flex;max-height:90vh}.modal-preview{flex:1.2;background:#f0f1f3;display:grid;place-items:center;overflow:auto;min-height:320px}.modal-preview img{max-width:100%;max-height:90vh;display:block}.modal-preview iframe{width:100%;height:90vh;border:0}.modal-hint{color:var(--muted);font-size:14px;padding:24px;text-align:center}.modal-meta{flex:1;padding:24px;overflow-y:auto}.modal-meta h3{margin:0 0 16px}.modal-meta h4{margin:20px 0 8px;color:var(--muted);font-size:13px}.meta-grid{display:grid;grid-template-columns:84px 1fr;gap:8px 12px;margin:0;font-size:14px}.meta-grid dt{color:var(--muted)}.meta-grid dd{margin:0;word-break:break-word}.meta-json{margin:0;background:var(--bg);border-radius:6px;padding:8px;font-size:12px;white-space:pre-wrap;word-break:break-word}.modal-actions{display:flex;gap:8px;margin-top:24px}@media (max-width: 720px){.modal-body{flex-direction:column;overflow-y:auto}.modal-preview iframe{height:50vh}}.chat{height:100%;display:flex}.conv-list{width:240px;border-right:1px solid var(--border);background:var(--panel);padding:12px;overflow-y:auto}.new-conv{width:100%;margin-bottom:12px}.conv-item{padding:10px 12px;border-radius:8px;cursor:pointer;color:var(--text);font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.conv-item:hover{background:var(--bg)}.conv-item.active{background:var(--brand-weak);color:var(--brand)}.chat-main{flex:1;display:flex;flex-direction:column}.messages{flex:1;overflow-y:auto;padding:24px;display:flex;flex-direction:column;gap:12px}.empty{color:var(--muted);margin:auto}.bubble{max-width:70%;padding:11px 14px;border-radius:12px;font-size:14px;line-height:1.5;white-space:pre-wrap}.bubble.user{align-self:flex-end;background:var(--brand);color:#fff}.bubble.assistant{align-self:flex-start;background:var(--panel);border:1px solid var(--border)}.bubble.pending{color:var(--muted)}.msg{display:flex;flex-direction:column;gap:8px}.msg.user{align-items:flex-end}.msg.assistant{align-items:flex-start}.file-cards{display:flex;flex-direction:column;gap:8px;max-width:70%}.file-card{display:flex;align-items:center;justify-content:space-between;gap:12px;background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:10px 12px}.file-card-info{display:flex;flex-direction:column;gap:2px;overflow:hidden}.file-card-title{font-weight:600;font-size:13px}.file-card-sum{color:var(--muted);font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-card-actions{display:flex;gap:6px;flex-shrink:0}.usage-line{font-size:11px;color:var(--muted);margin-top:2px;font-variant-numeric:tabular-nums;cursor:default}.composer{display:flex;gap:10px;padding:14px 24px;border-top:1px solid var(--border);background:var(--panel)}.composer input{flex:1}.muted-hint{color:var(--muted);font-size:13px;margin:-6px 0 16px}.trace-q{max-width:280px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:12px;font-weight:600}.badge.ok{background:#e6f4ec;color:var(--ok)}.badge.error{background:#fdeaea;color:var(--err)}.trace-detail{padding:24px;overflow-y:auto;max-height:90vh}.trace-detail h3{margin:0 0 16px}.trace-detail h4{margin:22px 0 10px;color:var(--muted);font-size:13px}.timeline{list-style:none;margin:0;padding:0}.tl-item{border-left:3px solid var(--border);padding:8px 0 8px 14px;margin-left:6px}.tl-llm{border-left-color:var(--brand)}.tl-tool{border-left-color:#c79a2b}.tl-head{display:flex;align-items:center;gap:10px;font-size:14px}.tl-type{font-weight:600}.tl-name{color:var(--text)}.tl-dur{margin-left:auto;color:var(--muted);font-size:12px;font-variant-numeric:tabular-nums}.tl-meta{font-size:12px;color:var(--muted);margin-top:4px;word-break:break-word}.tl-out{margin-top:2px}.trace-answer{background:var(--bg);border-radius:8px;padding:12px;font-size:14px;line-height:1.5;white-space:pre-wrap}