*{box-sizing:border-box}html,body{height:100%;margin:0;padding:0}#root{height:100%}:root{--bg:#0f172a;--bg2:#1e293b;--bg3:#334155;--ink:#e2e8f0;--muted:#94a3b8;--rule:#334155;--accent:#3b82f6;--accent2:#06b6d4;--ok:#10b981;--warn:#f59e0b;--danger:#ef4444;--radius:10px}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{background:var(--bg);height:100%;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;font-size:14px;line-height:1.5}.app-layout{flex-direction:column;height:100dvh;display:flex;overflow:hidden}.app-header{background:var(--bg2);border-bottom:1px solid var(--rule);flex-shrink:0;align-items:center;gap:12px;padding:12px 20px;display:flex}.logo{align-items:center;gap:8px;display:flex}.logo-img{border-radius:8px;flex-shrink:0;width:28px;height:28px;display:block}.logo-text{letter-spacing:.02em;font-size:18px;font-weight:700}.subtitle{color:var(--muted);font-size:13px}.app-main{flex:1;grid-template-columns:340px 1fr 280px;min-height:0;display:grid}.left-pane,.right-pane{background:var(--bg2);border-right:1px solid var(--rule);flex-direction:column;min-height:0;display:flex}.right-pane{border-right:none;border-left:1px solid var(--rule)}.center-pane{flex-direction:column;min-height:0;display:flex;position:relative}.viewer-container{flex:1;min-height:0;position:relative}.viewer-container canvas{touch-action:none;width:100%;height:100%;display:block}.viewer-info{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid var(--rule);border-radius:var(--radius);background:#0f172ad9;min-width:180px;padding:12px 14px;font-size:13px;position:absolute;top:16px;left:16px}.info-row{justify-content:space-between;gap:12px;padding:3px 0;display:flex}.info-label{color:var(--muted)}.info-value{color:var(--ink);font-weight:500}.info-value.ok{color:var(--ok)}.info-value.warn{color:var(--warn)}.info-badge{border-radius:12px;padding:2px 8px;font-size:12px;font-weight:500;display:inline-block}.info-badge-loading{background:var(--accent);color:#fff}.info-hint{color:var(--muted);font-size:13px}.viewer-error{border:1px solid var(--danger);color:#fca5a5;border-radius:var(--radius);background:#ef444426;padding:8px 12px;font-size:13px;position:absolute;bottom:16px;left:16px;right:16px}.webgl-fallback{background:var(--bg);width:100%;height:100%;color:var(--muted);text-align:center;flex-direction:column;justify-content:center;align-items:center;padding:20px;display:flex}.webgl-fallback-icon{margin-bottom:12px;font-size:40px}.webgl-fallback-msg{margin-top:6px;font-size:13px}.webgl-fallback-detail{opacity:.7;word-break:break-word;max-width:80%;margin-top:8px;font-family:monospace;font-size:11px}.chat-panel{flex-direction:column;flex:1;min-height:0;display:flex}.chat-header{border-bottom:1px solid var(--rule);justify-content:space-between;align-items:center;padding:14px 16px;display:flex}.chat-header h2{font-size:15px;font-weight:600}.model-id-tag{color:var(--accent2);background:#06b6d41f;border-radius:10px;padding:2px 8px;font-family:monospace;font-size:12px}.chat-messages{flex-direction:column;flex:1;gap:12px;padding:16px;display:flex;overflow-y:auto}.chat-empty{color:var(--muted);text-align:center;padding:40px 16px}.chat-empty .hint{margin-top:10px;font-size:12px}.chat-msg{flex-direction:column;gap:4px;max-width:100%;display:flex}.chat-msg-user{align-items:flex-end}.chat-msg-user .msg-content{background:var(--accent);color:#fff}.chat-msg-assistant .msg-content,.chat-msg-system .msg-content{background:var(--bg3);color:var(--ink)}.msg-role{color:var(--muted);padding:0 4px;font-size:11px}.msg-content{white-space:pre-wrap;word-break:break-word;border-radius:10px;padding:8px 12px;font-size:13px;line-height:1.55}.msg-status{color:var(--muted);align-items:center;gap:6px;padding:0 4px;font-size:12px;display:flex}.msg-status.error{color:var(--danger)}.spinner{border:2px solid var(--muted);border-top-color:var(--accent);border-radius:50%;width:12px;height:12px;animation:.7s linear infinite spin;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}.handle-tag{color:#93c5fd;background:#3b82f633;border-radius:4px;padding:1px 5px;font-family:monospace;font-size:12px}.suggestions{flex-wrap:wrap;gap:8px;padding:0 16px 12px;display:flex}.suggestions-title{color:var(--muted,#888);flex-basis:100%;margin-bottom:2px;font-size:12px}.suggestion-chip{background:var(--bg3);border:1px solid var(--rule);color:var(--ink);cursor:pointer;border-radius:16px;padding:6px 12px;font-size:12px;transition:all .15s}.suggestion-chip:hover:not(:disabled){background:var(--accent);border-color:var(--accent);color:#fff}.suggestion-chip:disabled{opacity:.5;cursor:not-allowed}.chat-input{border-top:1px solid var(--rule);gap:8px;padding:12px 16px;display:flex}.chat-input textarea{resize:none;background:var(--bg);border:1px solid var(--rule);color:var(--ink);border-radius:8px;outline:none;flex:1;padding:8px 10px;font-family:inherit;font-size:13px}.chat-input textarea:focus{border-color:var(--accent)}.chat-input textarea:disabled{opacity:.6}.chat-input button{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:8px;padding:0 18px;font-size:13px;font-weight:500;transition:opacity .15s}.chat-input button:hover:not(:disabled){opacity:.9}.chat-input button:disabled{opacity:.5;cursor:not-allowed}.side-panel{flex-direction:column;flex:1;gap:20px;padding:16px;display:flex;overflow-y:auto}.panel-section h3{color:var(--muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:10px;font-size:13px;font-weight:600}.format-grid{grid-template-columns:1fr 1fr;gap:8px;display:grid}.format-btn{background:var(--bg3);border:1px solid var(--rule);cursor:pointer;color:var(--ink);border-radius:8px;flex-direction:column;gap:2px;padding:10px 8px;transition:all .15s;display:flex}.format-btn:hover:not(:disabled){border-color:var(--accent);background:#3b82f626}.format-btn:disabled{opacity:.4;cursor:not-allowed}.fmt-name{font-size:14px;font-weight:600}.fmt-desc{color:var(--muted);font-size:11px}.action-btn{background:var(--accent2);color:#042f2e;cursor:pointer;border:none;border-radius:8px;width:100%;padding:9px 12px;font-size:13px;font-weight:600;transition:opacity .15s}.action-btn:hover:not(:disabled){opacity:.9}.action-btn:disabled{opacity:.5;cursor:not-allowed}.dfm-result{border:1px solid;border-radius:8px;margin-top:10px;padding:10px}.dfm-result.pass{border-color:var(--ok);background:#10b9811a}.dfm-result.fail{border-color:var(--warn);background:#f59e0b1a}.dfm-summary{justify-content:space-between;align-items:center;font-size:13px;display:flex}.dfm-issues{flex-direction:column;gap:6px;margin-top:8px;list-style:none;display:flex}.dfm-issue{background:#0003;border-radius:6px;padding:6px 8px;font-size:12px}.dfm-issue-error{color:#fca5a5}.dfm-issue-warning{color:#fcd34d}.toggle-btn{color:var(--muted);text-transform:uppercase;letter-spacing:.05em;cursor:pointer;background:0 0;border:none;padding:0;font-size:13px;font-weight:600}.toggle-btn:disabled{opacity:.5;cursor:not-allowed}.history-list{flex-direction:column;gap:8px;margin-top:8px;list-style:none;display:flex}.history-item{background:var(--bg3);border:1px solid var(--rule);border-radius:8px;padding:8px 10px}.history-prompt{color:var(--ink);margin-bottom:4px;font-size:12px}.history-meta{color:var(--muted);justify-content:space-between;align-items:center;font-size:11px;display:flex}.rollback-btn{border:1px solid var(--rule);color:var(--muted);cursor:pointer;background:0 0;border-radius:6px;padding:2px 8px;font-size:11px}.rollback-btn:hover{border-color:var(--accent);color:var(--accent)}.app-error{color:#fff;z-index:10;background:#ef4444e6;border-radius:8px;padding:8px 16px;font-size:13px;position:absolute;bottom:16px;left:50%;transform:translate(-50%)}.mobile-tabs{display:none}@media (width<=1100px){.app-main{grid-template-columns:280px 1fr 240px}}@media (width>=769px) and (width<=860px){.app-main{grid-template-rows:auto 1fr auto;grid-template-columns:1fr}.left-pane,.right-pane{border-left:none;border-right:none;border-bottom:1px solid var(--rule);max-height:40vh}.right-pane{border-bottom:none;border-top:1px solid var(--rule)}}@media (width<=768px){.app-layout{padding-top:env(safe-area-inset-top)}.app-header{gap:8px;padding:10px 14px}.logo-text{font-size:16px}.subtitle{display:none}.app-main{flex-direction:column;display:flex}.left-pane,.center-pane,.right-pane{border:none;flex:1;min-height:0;display:none}.left-pane.pane-active,.center-pane.pane-active,.right-pane.pane-active{flex-direction:column;display:flex}.mobile-tabs{background:var(--bg2);border-top:1px solid var(--rule);padding-bottom:env(safe-area-inset-bottom);flex-shrink:0;display:flex}.mobile-tab{color:var(--muted);cursor:pointer;background:0 0;border:none;flex-direction:column;flex:1;align-items:center;gap:3px;padding:8px 0 7px;font-family:inherit;font-size:11px;transition:color .15s;display:flex;position:relative}.mobile-tab svg{fill:none;stroke:currentColor;stroke-width:1.8px;stroke-linecap:round;stroke-linejoin:round;width:22px;height:22px}.mobile-tab.active{color:var(--accent)}.mobile-tab.active svg{stroke:var(--accent2)}.tab-dot{background:var(--accent2);border-radius:50%;width:6px;height:6px;position:absolute;top:7px;right:calc(50% - 16px)}.chat-input textarea{font-size:16px}.chat-input button{min-height:40px;padding:0 20px}.msg-content{font-size:14px}.suggestion-chip{padding:8px 14px;font-size:13px}.viewer-info{min-width:0;padding:10px 12px;top:12px;left:12px}}