@font-face{font-family:'Space Grotesk';src:url('./fonts/space-grotesk-latin.woff2') format('woff2');font-weight:300 700;font-display:swap}
@font-face{font-family:Manrope;src:url('./fonts/manrope-latin.woff2') format('woff2');font-weight:200 800;font-display:swap}
:root{color-scheme:light;--bg:#f4f6f9;--surface:#fff;--line:#dce2ea;--text:#202c3e;--muted:#536278;--accent:#245da8;font-family:Manrope,'Microsoft YaHei',sans-serif;color:var(--text);background:var(--bg);font-synthesis:none}*{box-sizing:border-box}body{margin:0}button,textarea{font:inherit}button,a,textarea{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}a:hover{text-decoration:underline;text-underline-offset:5px}button{cursor:pointer}button:disabled{cursor:default;opacity:.4}button:focus-visible,a:focus-visible,textarea:focus-visible{outline:2px solid var(--accent);outline-offset:4px}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.example-header,.example-main{max-width:1400px;width:90%;margin:auto}.example-header{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:22px 0 28px}.example-header a{min-height:44px;display:inline-flex;align-items:center}.example-brand{font:500 18px 'Space Grotesk',sans-serif;letter-spacing:.15em}.example-back{font-size:15px;color:var(--muted)}.example-heading{margin:12px 0 30px}h1{font:400 clamp(28px,2.7vw,38px)/1.4 'Space Grotesk','Microsoft YaHei',sans-serif;margin:0;letter-spacing:-.025em}.example-workspace{display:grid;grid-template-columns:250px minmax(0,1fr);gap:28px;border-top:1px solid var(--line);padding-top:24px;padding-bottom:48px}.example-content{align-self:start;min-width:0;padding:28px;background:var(--surface);border:1px solid var(--line);border-radius:12px}#example-panel{scroll-margin-top:24px}#example-step-title:focus{outline:none}.example-content h2{font:400 clamp(23px,2vw,28px)/1.4 'Space Grotesk','Microsoft YaHei',sans-serif;margin:0 0 28px;letter-spacing:-.02em}.tutorial-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:28px;align-items:start}.tutorial-instructions{margin:0 0 24px;padding:0;list-style:none;counter-reset:instruction}.tutorial-instructions li{position:relative;padding-left:30px;margin:0 0 18px;font-size:16px;line-height:1.85;counter-increment:instruction}.tutorial-instructions li::before{content:counter(instruction);position:absolute;left:0;top:2px;color:var(--accent);font:500 16px/1.7 'Space Grotesk',sans-serif}.tutorial-material{border-top:1px solid var(--line);padding-top:14px}.material-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px;font-size:16px}.material-heading button{min-height:44px;padding:8px 14px;color:var(--accent);background:#f4f7fc;border:1px solid #cfdbeb;border-radius:6px;font-size:15px}.material-heading button:hover{background:#e5eefb}.tutorial-material textarea{display:block;width:100%;resize:vertical;min-height:160px;border:1px solid var(--line);border-radius:8px;background:#f8fafc;color:var(--text);font-size:16px;line-height:1.85;padding:14px}#copy-status{font-size:15px;line-height:1.6;color:var(--accent);margin-top:8px}#copy-status:empty{display:none}.quiet-button,.solid-button{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:44px;padding:11px 17px;border-radius:8px;font-size:15px}.quiet-button{background:var(--surface);border:1px solid #cdd7e5;color:var(--text)}.quiet-button:hover{background:#edf2f8;border-color:#aebdd0}.solid-button{background:#c6ddff;border:1px solid #b5cff3;color:#173c70}.solid-button:hover{background:#b6d2fa;border-color:#9cbee9;text-decoration:none}.tutorial-start{margin-top:20px}.tutorial-screenshot{display:block;width:100%;padding:0;overflow:hidden;background:var(--surface);border:1px solid var(--line);border-radius:8px;cursor:zoom-in}.tutorial-screenshot:hover{border-color:#8ba9d0}.tutorial-screenshot img{display:block;width:100%;height:auto}.example-actions{display:flex;align-items:center;justify-content:space-between;gap:16px;border-top:1px solid var(--line);padding-top:20px;margin-top:28px}html[lang=zh-CN] h1,html[lang=zh-CN] h2{letter-spacing:.01em}#screenshot-dialog{width:min(1200px,94vw);max-height:94dvh;background:var(--surface);border:1px solid #cdd7e5;border-radius:12px;padding:16px;color:var(--text)}#screenshot-dialog::backdrop{background:#152c4966}#screenshot-dialog>button{display:flex;margin:0 0 16px auto}#screenshot-dialog img{display:block;width:100%;height:auto}
@media(max-width:1100px){.example-workspace{grid-template-columns:230px minmax(0,1fr);gap:24px}.tutorial-layout{grid-template-columns:1fr}.tutorial-screenshot{max-width:760px}.tutorial-instructions li{margin-bottom:16px}}
@media(max-width:700px){.example-header{padding:14px 0 18px;gap:12px}.example-header .example-brand{font-size:15px}.example-back{font-size:14px}.example-heading{margin:8px 0 24px}.example-workspace{grid-template-columns:1fr;gap:20px;padding-top:16px}.example-content{padding:20px 16px}.example-content h2{margin-bottom:22px}.tutorial-layout{gap:24px}.tutorial-instructions li{font-size:16px}.example-actions{margin-top:24px}.tutorial-material textarea{min-height:180px}.tutorial-start{width:100%}}


@media(max-width:700px){.example-workspace{padding-top:8px;gap:16px}#example-panel{scroll-margin-top:84px}}

/* React Bits BranchedMenu: one workflow stage opens at a time. */
.example-steps{align-self:start;position:sticky;top:24px;min-width:0;max-height:calc(100dvh - 48px);overflow-y:auto;scrollbar-width:thin;scrollbar-color:#bdcce0 transparent;padding:2px 6px 4px 2px}
.example-steps .branched-menu{width:100%;--bm-muted:#536278;max-width:100%}
.example-steps .branched-menu__head{display:flex;align-items:center;justify-content:space-between;gap:12px;width:100%;min-height:48px;padding:10px 4px 10px 0}
.branched-menu__head::after,.tutorial-menu-chevron{content:'';display:block;flex:none;width:7px;height:7px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(-45deg);transition:transform 180ms ease}
.branched-menu__head[aria-expanded=true]::after,.tutorial-menu-toggle[aria-expanded=true] .tutorial-menu-chevron{transform:rotate(45deg)}
.branched-menu__item{border-radius:4px}
.branched-menu__head:focus-visible,.branched-menu__item:focus-visible{outline:2px solid var(--accent);outline-offset:1px}
.tutorial-menu-toggle{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:48px;width:100%;border:1px solid #c9d9ef;border-radius:8px;padding:12px 16px;color:var(--accent);background:#e5eefb;text-align:left;font-size:16px}
@media(max-width:700px){.example-workspace{grid-template-columns:1fr;gap:16px}.example-steps{position:static;max-height:none;overflow:visible;padding:0}.tutorial-branches{padding:16px 18px 8px;margin-top:8px;border:1px solid var(--line);border-radius:10px;background:var(--surface)}#example-panel{scroll-margin-top:24px}}
@media(prefers-reduced-motion:reduce){.branched-menu__head::after,.tutorial-menu-chevron{transition:none}}

.example-view-nav{display:flex;gap:24px;margin-bottom:28px;border-bottom:1px solid var(--line)}.example-view-nav a{display:inline-flex;align-items:center;min-height:48px;padding:10px 2px;border-bottom:2px solid transparent;color:var(--muted)}.example-view-nav a[aria-current=page]{border-color:var(--text);color:var(--text);font-weight:600}#example-results{padding-bottom:56px}.results-intro{display:flex;align-items:center;justify-content:space-between;gap:24px;margin:32px 0}.results-label{font-size:13px;color:var(--muted);letter-spacing:.04em}.results-intro h2{font-size:clamp(24px,3vw,34px);font-weight:500;margin:10px 0}.results-start{display:flex;flex-direction:column;align-items:flex-start;gap:10px}.results-start>span{font-size:13px;color:var(--muted)}.results-flow{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin-bottom:28px;padding:18px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);font-size:14px}.results-flow>span{color:var(--muted)}.result-card{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:28px;min-width:0;scroll-margin-top:24px}.result-card>header{display:flex;gap:14px;align-items:baseline;margin-bottom:24px}.result-number{font:500 14px 'Space Grotesk',sans-serif;color:var(--muted)}.result-card h2{font-size:21px;line-height:1.5;font-weight:500;margin:0}.result-card h3{font-size:14px;color:var(--muted);font-weight:500;margin:0 0 12px}.result-comparison{display:grid;grid-template-columns:1fr 1fr;gap:32px}.result-comparison>section+section{border-left:1px solid var(--line);padding-left:32px}.result-comparison p{font-size:17px;line-height:1.9;margin:0}.result-notes{margin-top:24px;padding:20px 24px;background:#f5f7fa;border-radius:8px}.result-notes ul{padding-left:20px;margin:0;font-size:15px;line-height:1.9}.result-card footer{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}.results-pair{display:grid;grid-template-columns:1fr 1.2fr;gap:24px;margin-top:24px}.result-chart-image{width:100%;height:auto;display:block}.result-caption,.result-source{font-size:13px;line-height:1.8;color:var(--muted)}.result-deck{width:100%;height:340px;border:1px solid var(--line);border-radius:8px}.result-slide-control{display:flex;justify-content:center;align-items:center;gap:20px;margin-top:12px;font-size:14px}.result-slide-control button{min-width:44px}.result-paper{border-top:1px solid var(--line);margin-top:40px;padding-top:28px;display:flex;justify-content:space-between;align-items:center;gap:28px}.result-paper h2{font:500 24px/1.5 'Space Grotesk',sans-serif;margin:8px 0}.result-paper p{font-size:15px;line-height:1.8}.result-paper>div:last-child{display:flex;gap:12px;flex-wrap:wrap;flex-shrink:0}
@media(max-width:1000px){.results-pair{grid-template-columns:1fr}.result-paper{align-items:flex-start;flex-direction:column}.result-deck{height:420px}}
@media(max-width:700px){.results-intro{align-items:flex-start;flex-direction:column;margin:24px 0}.result-card{padding:20px}.result-comparison{grid-template-columns:1fr;gap:24px}.result-comparison>section+section{border-left:0;border-top:1px solid var(--line);padding:20px 0 0}.result-comparison p{font-size:16px}.result-notes{padding:16px}.results-flow{gap:12px;font-size:13px}.result-deck{height:300px}.result-card footer>*{width:100%;text-align:center}.example-view-nav{margin-bottom:20px}}

.tutorial-screenshot{max-height:560px;display:flex;align-items:center;justify-content:center;background:#f5f7fa}.tutorial-screenshot img{max-height:560px;object-fit:contain}.tutorial-screenshot-chat{max-width:440px;justify-self:center}.tutorial-screenshot-chat img{max-height:420px;width:100%;object-fit:contain}#screenshot-dialog img{max-height:calc(94dvh - 92px);object-fit:contain}@media(max-width:700px){.tutorial-screenshot-chat{max-width:330px}.tutorial-screenshot-chat img{max-height:360px}}

.result-analysis,.result-writing{margin-top:24px}.result-reading-points{margin:0 0 18px;padding-left:20px;font-size:16px;line-height:1.85}.result-evidence blockquote{margin:0;padding-left:20px;border-left:3px solid #c6ddff;font-size:17px;line-height:1.9}.result-writing-intro{margin:0 0 24px;color:var(--muted);font-size:16px;line-height:1.8}.result-writing-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:32px}.result-editor-preview{display:block;overflow:hidden;border:1px solid var(--line);border-radius:8px;margin-bottom:18px}.result-editor-preview img{display:block;width:100%;height:auto}.result-revision-before,.result-revision-after{padding:16px 20px;border-radius:8px;margin-bottom:14px}.result-revision-before{background:#f5f7fa}.result-revision-after{background:#eef5ff;border-left:3px solid var(--accent)}.result-revision-before span,.result-revision-after span{font-size:13px;color:var(--muted)}.result-revision-before p,.result-revision-after p{font-size:16px;line-height:1.9;margin:8px 0 0}@media(max-width:800px){.result-writing-grid{grid-template-columns:1fr}.result-evidence blockquote{font-size:16px}}

.results-scenarios{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:26px 0 34px}.results-scenarios button{display:flex;flex-direction:column;align-items:flex-start;gap:10px;text-align:left;padding:24px;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--text);min-height:124px}.results-scenarios strong{font-size:20px;font-weight:500;line-height:1.5}.results-scenarios span{font-size:14px;line-height:1.8;color:var(--muted)}.results-scenarios button[aria-pressed=true]{border-color:var(--accent);background:#edf4ff;box-shadow:inset 3px 0 var(--accent)}.research-formula{padding:20px;margin-top:22px;border:1px solid var(--line);border-radius:8px;background:#f5f7fa;font:500 clamp(14px,1.8vw,20px)/1.7 'Space Grotesk',sans-serif;overflow-wrap:anywhere}.research-terms{display:grid;gap:16px;margin:24px 0 0}.research-terms dt{font:500 15px 'Space Grotesk',sans-serif;color:var(--accent)}.research-terms dd{margin:5px 0 0;line-height:1.8;font-size:15px}.research-sections{display:grid;grid-template-columns:1fr 1fr;gap:24px 32px}.research-sections section{border-top:1px solid var(--line);padding-top:18px}.research-sections p{font-size:16px;line-height:1.9;margin:0 0 12px}.research-evidence{font-size:14px;color:var(--accent);display:inline-flex;align-items:center;min-height:44px}.research-argument{font-size:19px;line-height:2;margin:0}.result-next-tools{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px;padding-top:24px;border-top:1px solid var(--line)}@media(max-width:700px){.results-scenarios{grid-template-columns:1fr;gap:12px}.results-scenarios button{padding:18px;min-height:0}.results-scenarios strong{font-size:18px}.research-sections{grid-template-columns:1fr}.research-argument{font-size:17px}}

.result-literature{margin-top:28px;border-top:1px solid var(--line);padding-top:24px}.result-literature ol{padding:0;list-style:none;margin:0}.result-literature li{padding:16px 0;border-bottom:1px solid var(--line)}.result-literature a{font-size:17px;line-height:1.7;color:var(--accent)}.result-literature li p{font-size:14px;line-height:1.7;color:var(--muted);margin:7px 0 0;overflow-wrap:anywhere}

.research-translation-output{max-width:920px;margin:0 auto}.research-translation-output>p{font-size:18px;line-height:1.95;margin:0}.research-translation-output .research-formula{display:flex;align-items:center;justify-content:center;gap:28px;margin:24px 0 0;padding:24px 0;border:0;border-radius:0;background:transparent;overflow:visible}.research-formula math{font-family:'Cambria Math','STIX Two Math','Times New Roman',serif;font-size:clamp(21px,2.4vw,32px);line-height:1.5}.research-equation-number{font:18px 'Times New Roman',serif;flex-shrink:0}.result-next-tools{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.result-next-tools h3{font-size:15px;font-weight:500;margin:0 0 12px}.result-literature>.quiet-button{margin-top:18px}@media(max-width:700px){.research-translation-output>p{font-size:16px}.research-translation-output .research-formula{gap:12px}.research-formula math{font-size:clamp(16px,4.6vw,23px)}.research-equation-number{font-size:15px}.result-next-tools{grid-template-columns:1fr}}

.research-formula math{flex:0 0 auto;max-width:none}.research-translation-output .research-formula{overflow-x:auto;justify-content:center}.research-equation-number{align-self:center}@media(max-width:700px){.research-translation-output .research-formula{gap:8px}.research-formula math{font-size:clamp(13px,4.1vw,23px)}.research-equation-number{font-size:14px}}

.research-translation-output{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);max-width:none;gap:32px}.research-language{display:flex;flex-direction:column;min-width:0}.research-language+section{border-left:1px solid var(--line);padding-left:32px}.research-language h3{margin:0 0 12px;font-size:14px;font-weight:500;color:var(--muted)}.research-language>p{margin:0;font-size:17px;line-height:1.95}.research-translation-output .research-formula{margin-top:auto;padding-top:28px;gap:14px;min-height:140px}.research-translation-output math{font-size:clamp(16px,1.8vw,26px)}.result-source a{color:inherit;display:inline-flex;align-items:center;min-height:44px}.result-source a:hover{color:var(--accent)}@media(max-width:700px){.research-translation-output{grid-template-columns:1fr;gap:24px}.research-language+section{border-left:0;border-top:1px solid var(--line);padding:24px 0 0}.research-language>p{font-size:16px}.research-translation-output .research-formula{min-height:100px;padding-top:20px;gap:8px}.research-translation-output math{font-size:clamp(13px,4.1vw,23px)}}

.journey-conversation{margin-top:28px;border-top:1px solid var(--line);padding-top:24px;scroll-margin-top:24px}.journey-conversation>header{margin-bottom:20px}.journey-conversation>header>span{font-size:13px;color:var(--muted)}.journey-conversation h3{font-size:19px;font-weight:500;line-height:1.5;margin:8px 0 0;color:var(--text)}.journey-message{max-width:900px;padding:18px 22px;border-radius:10px;margin-bottom:16px}.journey-message>span,.journey-followup>span{font-size:13px;color:var(--muted)}.journey-message p,.journey-followup p{font-size:16px;line-height:1.9;margin:8px 0 0}.journey-message-user{margin-left:auto;background:#edf4ff}.journey-message-assistant{background:#f5f7fa;border-left:3px solid var(--accent)}.journey-followup{padding:14px 0 0 22px;max-width:900px;border-left:1px solid var(--line)}.result-next-tools{grid-template-columns:repeat(2,1fr)}@media(max-width:700px){.journey-message{padding:16px}.journey-followup{padding-left:16px}.result-next-tools{grid-template-columns:1fr}}

.result-updated-image{display:block;width:100%;height:auto;max-height:360px;object-fit:contain;margin:0 0 28px}.result-process{margin-top:24px;border-top:1px solid var(--line);padding-top:20px}.result-process h3{font-size:16px;font-weight:500;margin:0 0 14px}.result-process .result-updated-image{margin-bottom:0}