*{box-sizing:border-box}:root{color:#181817;font-synthesis:none;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--line:#e6e5e0;--muted:#73736e;background:#fff;font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,sans-serif}body{min-width:320px;margin:0}button,textarea,summary{font:inherit}button,summary{cursor:pointer}button{color:inherit;border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 15px;font-size:13px}button:hover,summary:hover{background:#f4f4f2}button:disabled{opacity:.4;cursor:default}button:focus-visible,summary:focus-visible,textarea:focus-visible{outline-offset:3px;outline:2px solid #181817}[hidden]{display:none!important}#app{min-height:100dvh}.topbar{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:20px;padding:22px 32px;display:flex}.brand h1{letter-spacing:-.04em;margin:0;font-size:26px;font-weight:800}.brand p{color:var(--muted);letter-spacing:.07em;margin:6px 0 0;font-size:11px}.actions{align-items:center;gap:10px;display:flex}.export-menu{position:relative}summary{color:#fff;background:#181817;border:1px solid #181817;border-radius:12px;padding:10px 19px;font-size:13px;list-style:none}summary::-webkit-details-marker{display:none}summary:hover{color:#181817}summary span{margin-left:14px}.menu-panel{border:1px solid var(--line);z-index:10;background:#fff;border-radius:14px;width:208px;padding:8px;position:absolute;top:calc(100% + 9px);right:0;box-shadow:0 8px 24px #0000000d}.menu-panel button{text-align:left;border-color:#0000;width:100%;display:block}.menu-panel p{color:var(--muted);margin:10px 8px 5px;font-size:11px}main{max-width:1800px;margin:auto;padding:0 32px}.workspace-heading{justify-content:space-between;align-items:center;gap:16px;padding:22px 0;display:flex}.workspace-heading p{margin:0;font-size:14px}.workspace-heading>span{color:var(--muted);font-size:11px}.workspace{grid-template-columns:minmax(0,38fr) minmax(0,62fr);gap:18px;height:calc(100dvh - 224px);min-height:430px;display:grid}.editor-panel,.map-panel{border:1px solid var(--line);border-radius:16px;flex-direction:column;min-width:0;min-height:0;display:flex;overflow:hidden}.editor-panel{background:#fafaf9}.panel-header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:8px;padding:17px 20px;font-size:12px;font-weight:600;display:flex}.panel-header>span:last-child{color:var(--muted);font-size:11px;font-weight:400}.live-label{align-items:center;gap:6px;display:flex}.live-label i{background:#8c8c86;border-radius:50%;width:5px;height:5px}textarea{resize:none;color:#353532;tab-size:2;background:0 0;border:0;flex:1;width:100%;min-height:0;padding:22px;font-family:ui-monospace,SFMono-Regular,Consolas,PingFang SC,monospace;font-size:13px;line-height:1.95;display:block}textarea:focus-visible{outline-offset:-3px}.panel-footer{color:var(--muted);justify-content:space-between;gap:10px;padding:13px 18px;font-size:10px;display:flex}.editor-panel .panel-footer{border-top:1px solid var(--line)}.canvas-area{flex:1;min-height:0;position:relative;overflow:hidden}#mindmap{touch-action:none;width:100%;height:100%;display:block}.markmap-foreign{overflow-wrap:anywhere}#empty-state{text-align:center;color:var(--muted);pointer-events:none;place-content:center;padding:20px;font-size:13px;display:grid;position:absolute;inset:0}#empty-state>span{color:#bbb;font-size:28px}.map-tools{border:1px solid var(--line);border-radius:14px;flex-wrap:wrap;justify-content:center;align-self:center;align-items:center;gap:3px;max-width:calc(100% - 24px);margin:8px 12px 0;padding:5px;display:flex}.map-tools button{border:0;min-height:36px;padding:9px 10px;font-size:11px}#zoom-in,#zoom-out{width:36px;padding:5px;font-size:17px}.tool-divider{background:var(--line);width:1px;height:18px;margin:0 3px}.map-panel>.panel-footer{text-align:center;justify-content:center}#message{min-height:18px;color:var(--muted);margin:15px 0;font-size:11px}.mobile-switch{display:none}@media (width<=1000px){.topbar{padding:20px}main{padding:0 20px}.workspace{gap:12px}.panel-header{padding:16px 14px}}@media (width<=700px){.topbar{gap:10px;padding:17px 18px}.brand h1{font-size:23px}.brand p{font-size:10px}.actions{gap:6px}.actions>button,summary{padding:11px 13px}main{padding:0 14px}.workspace-heading{padding:18px 2px 14px}.workspace-heading p{font-size:12px}.workspace-heading>span{display:none}.mobile-switch{background:#f5f5f3;border-radius:12px;margin-bottom:12px;padding:4px;display:flex}.mobile-switch button{background:0 0;border-color:#0000;flex:1;min-height:42px}.mobile-switch button[aria-pressed=true]{border-color:var(--line);background:#fff}.workspace{height:calc(100dvh - 255px);min-height:380px;display:flex}.workspace>section{width:100%}.workspace[data-view=editor] .map-panel,.workspace[data-view=map] .editor-panel{display:none}textarea{padding:18px;font-size:16px}.map-tools{gap:0;max-width:calc(100% - 12px);margin-left:6px;margin-right:6px}.map-tools button{min-height:44px;padding:9px 7px}.tool-divider{margin:0 1px}#message{font-size:10px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}