:root{color-scheme:light;--ink:#172b24;--muted:#52645b;--green:#155b4a;--green-hover:#104536;--pale:#e5f0e9;--paper:#fff;--ground:#f6f8f4;--line:#d6e2da;--accent:#e9ef92;--radius:14px;--shadow:0 20px 50px -24px rgba(27,58,43,.28);font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;scroll-behavior:smooth;scroll-padding-top:110px}
*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--ground);font-size:16px;line-height:1.7}h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.3;text-wrap:balance}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit;cursor:pointer}button,a{-webkit-tap-highlight-color:transparent}button:disabled{cursor:default;opacity:.6}a:focus-visible,button:focus-visible,[tabindex]:focus-visible{outline:3px solid #39765b;outline-offset:4px}::selection{background:#d5e79b;color:#123c2e}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-thumb{background:#b3c7bc;border-radius:8px}svg{flex-shrink:0}.icon{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;vertical-align:middle}.icon-definitions{position:absolute;width:0;height:0;overflow:hidden}.section-width{max-width:1180px;margin-inline:auto;width:calc(100% - 80px)}.sr-only{position:absolute;width:1px;height:1px;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.skip-link{position:fixed;top:12px;left:12px;z-index:50;background:var(--green);color:#fff;padding:10px 18px;transform:translateY(-200%)}.skip-link:focus{transform:translateY(0)}[hidden]{display:none!important}
.site-header{position:sticky;top:16px;z-index:20;max-width:1340px;width:calc(100% - 48px);min-height:68px;margin:16px auto 0;padding:10px 18px 10px 23px;display:flex;align-items:center;gap:28px;border:1px solid var(--line);border-radius:16px;background:var(--paper)}.brand{display:inline-flex;align-items:center;gap:11px;font-weight:750;letter-spacing:-.02em;white-space:nowrap;font-size:18px;min-height:44px}.brand-mark{font-family:Georgia,serif;font-weight:700;font-size:29px;line-height:1;color:var(--green)}.brand-mark sup{font-size:.52em;vertical-align:super}.site-header nav{display:flex;gap:26px;align-items:center;margin-left:auto}.site-header nav a{font-size:14px;min-height:44px;display:flex;align-items:center;color:var(--muted)}.site-header nav a:hover,.site-footer a:hover{color:var(--green);text-decoration:underline;text-underline-offset:5px}.button{display:inline-flex;justify-content:center;align-items:center;gap:16px;min-height:48px;padding:10px 24px;border-radius:10px;font-weight:600;line-height:1.5;transition:background .18s,color .18s}.primary,.header-login{background:var(--green);color:#fff;border:1px solid var(--green)}.primary:hover,.header-login:hover{background:var(--green-hover)}.header-login{font-size:14px;min-height:44px;padding:8px 18px;gap:12px}.secondary{border:1px solid #b5c9bd;background:transparent}.secondary:hover{background:var(--pale)}.hero{text-align:center;padding:65px 24px 43px}.hero h1{font-size:clamp(38px,4.6vw,64px);font-weight:700;letter-spacing:-.035em;line-height:1.28}.hero h1 span{color:var(--green)}.hero-intro{max-width:760px;margin:22px auto 0;color:var(--muted);font-size:18px;line-height:1.8;text-wrap:pretty}.mobile-break{display:none}.hero-actions{display:flex;justify-content:center;gap:14px;margin-top:26px}
.showcase{scroll-margin-top:110px}.demo-controls{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:14px}.demo-tabs{display:flex;align-items:center;gap:6px}.demo-tabs button{display:flex;align-items:center;justify-content:center;gap:9px;min-height:44px;padding:8px 17px;border:1px solid transparent;border-radius:8px;background:transparent;color:var(--muted);font-size:15px;white-space:nowrap}.demo-tabs button[aria-selected=true]{background:var(--green);color:white}.demo-tabs button:not([aria-selected=true]):hover{background:var(--pale)}.playback{min-height:44px;border:0;background:transparent;color:var(--muted);font-size:13px;padding:8px 13px;text-decoration:underline;text-underline-offset:4px}.playback:hover{color:var(--green)}.product-window{border-radius:var(--radius);background:var(--paper);box-shadow:var(--shadow);overflow:hidden}.window-bar{display:flex;align-items:center;gap:24px;padding:14px 22px;min-height:62px;border-bottom:1px solid var(--line);background:#eef4ef;font-size:13px}.window-title{display:flex;align-items:center;gap:10px;font-weight:650;white-space:nowrap}.small{font-size:22px}.workspace-name{display:flex;align-items:center;gap:8px;margin-left:auto;color:var(--muted)}.avatar-stack{display:flex;padding-right:7px}.avatar-stack span{width:29px;height:29px;border-radius:50%;border:2px solid #eef4ef;margin-right:-7px;display:flex;align-items:center;justify-content:center;background:#d6e6c8;font-size:11px;color:#285232}.avatar-stack span:nth-child(2){background:#f4d8c2;color:#69432b}.avatar-stack span:nth-child(3){background:#dde5f2;color:#374e75}.demo-scene{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(290px,1fr);min-height:392px}.demo-scene.scene-enter{animation:scene-enter .4s cubic-bezier(.16,1,.3,1)}@keyframes scene-enter{from{opacity:.65;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.document-preview{background:#f8faf8;min-width:0}.document-toolbar{padding:15px 24px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:14px;font-size:12px;color:var(--muted)}.document-toolbar>span:first-child{display:flex;align-items:center;gap:8px;min-width:0}.document-toolbar .icon{width:16px;height:16px}.paper-page{max-width:650px;padding:23px 36px 21px;margin:auto}.paper-subtitle{font-size:11px;color:var(--muted)}.paper-page h2{font-size:24px;margin:9px 0 15px;font-weight:650;line-height:1.4;letter-spacing:-.02em}.paper-page>p{font-size:13px;line-height:1.95;margin:10px 0;color:#40554a}.evidence-paragraph{padding:10px 13px;background:#eef1d6;border-radius:4px;scroll-margin-top:135px}mark{background:#e7ecaa;color:#263d1e;box-decoration-break:clone;-webkit-box-decoration-break:clone;padding:1px 2px}.evidence-paragraph.evidence-active{background:#e6edb5;animation:evidence-pulse 1.2s ease-out}@keyframes evidence-pulse{from{box-shadow:0 0 0 5px #a7bc5366}to{box-shadow:0 0 0 0 #a7bc5300}}.paper-rule{width:46px;height:1px;background:var(--line);margin-top:14px}.paper-page .paper-footnote{font-size:11px;color:var(--muted);margin:8px 0 0}.assistant-preview{border-left:1px solid var(--line);padding:18px 24px;display:flex;flex-direction:column;gap:17px;min-width:0}.preview-title{display:flex;gap:9px;align-items:center;font-size:13px;font-weight:650;color:var(--green)}.question-bubble{background:#eff4ef;padding:13px 15px;align-self:flex-end;max-width:100%;border-radius:10px 10px 2px 10px;font-size:13px}.demo-answer{font-size:14px}.assistant-label{font-size:11px;color:var(--green);font-weight:650}.demo-answer p{margin:9px 0 13px;line-height:1.95}.citation-button{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid #b7cebb;border-radius:8px;color:var(--green);min-height:44px;padding:8px 12px;font-size:12px;max-width:100%}.citation-button:hover{background:#eaf2e3}.citation-button .icon{width:16px;height:16px}.citation-button .icon:last-child{margin-left:auto}.preview-bottom{font-size:11px;color:var(--muted);display:flex;align-items:flex-start;gap:7px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line)}.preview-bottom .icon{width:15px;height:15px;margin-top:3px}.demo-caption{display:flex;justify-content:space-between;gap:16px;padding:15px 3px 0;font-size:12px;color:var(--muted)}.demo-caption a{display:flex;align-items:center;gap:8px;min-height:32px;color:var(--green);white-space:nowrap}.demo-caption a:hover{text-decoration:underline;text-underline-offset:4px}.demo-caption .icon{width:16px;height:16px}.no-script-note{margin-top:12px;font-size:14px}
.search-scene,.project-scene{grid-column:1/-1;padding:28px 42px}.scene-heading{display:flex;gap:13px;align-items:center;margin-bottom:20px}.scene-heading h2{font-size:22px;font-weight:650}.scene-heading p{font-size:12px;color:var(--muted);margin-top:4px}.mini-icon{display:flex;align-items:center;justify-content:center;width:44px;height:44px;background:var(--pale);border-radius:10px;color:var(--green)}.search-query{display:flex;align-items:center;gap:12px;border:1px solid var(--line);padding:11px 16px;border-radius:8px;font-size:14px;color:var(--muted)}.query-source{margin-left:auto;font-size:11px;background:#edf3eb;padding:3px 8px;border-radius:5px;white-space:nowrap}.search-results article{display:flex;align-items:flex-start;gap:14px;padding:17px 0;border-bottom:1px solid var(--line)}.file-tag{display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;min-width:35px;height:35px;border-radius:6px;background:#e5f0e9;color:var(--green);font-size:11px;font-weight:650}.search-results h3{font-size:15px;font-weight:600}.search-results p{font-size:11px;color:var(--muted);margin-top:3px}.result-excerpt{font-size:12px;color:#52645b}.saved-label{margin-left:auto;font-size:11px;display:flex;align-items:center;gap:4px;white-space:nowrap;color:var(--green);padding-top:5px}.saved-label .icon{width:15px;height:15px}.scene-note{font-size:12px;color:var(--muted);margin-top:15px}.editing-label{color:var(--green);white-space:nowrap}del{color:#965f50;text-decoration-thickness:1px;background:#fcece6}ins{color:#245337;text-decoration:none;background:#e0efd9;padding:0 3px}.commented-paragraph{background:#ecf1e5;padding:11px 13px;border-radius:4px}.collaborator-caret{display:inline-flex;align-items:center;justify-content:center;background:#446849;color:#fff;font-size:11px;border-radius:3px;width:18px;height:18px;margin-left:5px}.revision-note{display:flex;align-items:center;gap:7px;font-size:11px;color:var(--muted);margin-top:15px}.revision-note .icon{width:16px;height:16px}.comment-entry{display:flex;align-items:flex-start;gap:11px;font-size:13px}.person-avatar{display:flex;align-items:center;justify-content:center;width:28px;height:28px;flex-shrink:0;background:#dce9d0;color:#285232;border-radius:50%;font-size:11px}.person-avatar.peach{background:#f4d8c2;color:#69432b}.comment-entry strong{font-size:12px;font-weight:600}.comment-entry small{font-size:11px;color:var(--muted);margin-left:8px;font-weight:400}.comment-entry p{margin-top:9px;line-height:1.95}.mention{color:var(--green);font-weight:600}.reply{padding-top:15px;border-top:1px solid var(--line);margin-left:16px}.project-columns{display:grid;grid-template-columns:1fr 1fr;gap:45px;padding-top:8px}.project-columns h3{font-size:13px;margin-bottom:14px;color:var(--muted)}.project-materials{list-style:none;margin:0;padding:0}.project-materials li{display:flex;align-items:center;gap:12px;padding:12px 0;border-bottom:1px solid var(--line);font-size:13px}.demo-task{display:flex;gap:12px;padding:13px 0;border-bottom:1px solid var(--line)}.demo-task strong{font-size:13px;font-weight:500}.demo-task small{display:block;font-size:11px;color:var(--muted);margin-top:2px}.task-check{width:18px;height:18px;border:1px solid #9db6a6;border-radius:4px;margin-top:3px;flex-shrink:0}.task-check.done{background:#dcebd9;border-color:#dcebd9;color:var(--green)}.task-check .icon{width:16px;height:16px}
.feature-story{display:grid;grid-template-columns:1fr 1fr;gap:100px;padding-block:112px 100px;align-items:center}.story-copy h2,.team-intro h2,.section-heading h2,.closing h2{font-size:clamp(30px,3vw,42px);font-weight:650;line-height:1.4;letter-spacing:-.025em}.story-copy>p{margin-top:22px;color:var(--muted);max-width:490px;line-height:1.9}.plain-features{list-style:none;padding:0;margin:22px 0 18px;display:grid;gap:12px}.plain-features li{display:flex;gap:10px;align-items:flex-start;font-size:14px}.plain-features .icon{width:17px;height:17px;margin-top:4px;color:var(--green)}.inline-action{min-height:44px;display:inline-flex;align-items:center;gap:12px;padding:8px 0;border:0;background:transparent;color:var(--green);font-size:14px;font-weight:600;text-decoration:underline;text-underline-offset:5px}.inline-action:hover{color:var(--green-hover)}.source-map{padding:34px;background:#e9f0e7;border-radius:var(--radius)}.source-question{display:flex;align-items:center;gap:10px;color:var(--green);font-size:15px}.source-connection{display:flex;align-items:center;gap:14px;margin:24px 0;color:#678169}.source-connection span{height:1px;background:#b7c9b1;flex:1}.source-connection>.icon{transform:rotate(90deg)}.source-excerpt{background:#fff;border-radius:8px;padding:24px}.source-excerpt>div{font-size:12px;display:flex;gap:9px;align-items:center;color:var(--muted)}.source-excerpt p{font-size:17px;line-height:1.9;margin:14px 0}.source-excerpt small{font-size:11px;color:var(--muted)}
.team-section{background:var(--green);color:#fff;padding:75px 0 24px;scroll-margin-top:92px}.team-content{display:grid;grid-template-columns:1fr 1fr;gap:100px;align-items:start}.team-intro>p{max-width:440px;margin:24px 0 20px;color:#d8e8df;line-height:1.95}.inline-action.light{color:#eff5b1}.inline-action.light:hover{color:#fff}.team-flow{display:grid;gap:27px;padding-top:5px}.team-flow article{display:flex;gap:19px;align-items:flex-start;padding-bottom:25px;border-bottom:1px solid #42816c}.team-flow article>.icon{width:25px;height:25px;color:#e1edac;margin-top:2px}.team-flow h3{font-size:18px;font-weight:600}.team-flow p{font-size:14px;line-height:1.9;color:#d8e8df;margin-top:8px}.team-boundary{border-top:1px solid #42816c;padding-top:21px;margin-top:48px;color:#d8e8df;font-size:12px}
.space-section{padding-block:105px 95px;scroll-margin-top:92px}.section-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:70px}.section-heading>p{color:var(--muted);max-width:370px;line-height:1.9;margin-bottom:5px}.space-diagram{display:grid;grid-template-columns:1fr 1fr;gap:0 45px;margin-top:46px}.space-unit{position:relative;padding:26px 28px 32px;border:1px solid #c3d6c7;border-radius:var(--radius);background:#fdfefd}.space-unit>.icon{width:28px;height:28px;color:var(--green);margin-bottom:12px}.space-unit h3{font-size:20px;font-weight:600}.space-unit p{font-size:14px;color:var(--muted);margin-top:11px}.space-unit::after{content:"";position:absolute;bottom:-33px;left:50%;width:1px;height:32px;background:#b8cabb}.project-unit{grid-column:1/-1;display:flex;gap:18px;align-items:center;padding:23px 28px;background:#e5eee2;margin-top:32px;border-radius:12px}.project-unit>.icon{width:30px;height:30px;color:var(--green)}.project-unit h3{font-size:17px;font-weight:600}.project-unit p{font-size:14px;color:var(--muted);margin-top:5px}.start-note{text-align:center;margin-top:24px;color:var(--muted);font-size:14px}.closing{display:flex;align-items:center;justify-content:space-between;gap:45px;border-top:1px solid var(--line);padding-block:60px 70px}.closing p{font-size:15px;color:var(--muted);margin-top:18px}.closing .button{flex-shrink:0}.site-footer{border-top:1px solid var(--line);padding:26px 0 32px;display:flex;justify-content:space-between;align-items:center;gap:24px}.site-footer .brand{font-size:15px}.site-footer .brand-mark{font-size:24px}.site-footer nav{display:flex;gap:24px;flex-wrap:wrap;color:var(--muted);font-size:12px}.site-footer nav a{min-height:44px;display:flex;align-items:center}
@media(min-width:1200px){.product-window{min-height:454px}}
@media(max-width:1000px){.section-width{width:calc(100% - 48px)}.site-header{gap:20px}.site-header nav{gap:18px}.hero{padding-top:52px}.feature-story,.team-content{gap:45px}.paper-page{padding:22px 25px}.demo-scene{grid-template-columns:minmax(0,1.4fr) minmax(265px,1fr)}.assistant-preview{padding:18px}.document-toolbar{padding:14px 18px}.section-heading{gap:35px}.demo-tabs button{padding-inline:12px}.source-map{padding:25px}}
@media(max-width:700px){:root{scroll-padding-top:95px}.section-width{width:calc(100% - 36px)}.site-header{width:calc(100% - 24px);top:10px;margin-top:10px;min-height:62px;padding:8px 10px 8px 14px;gap:14px;border-radius:12px}.site-header .brand{font-size:15px;gap:7px}.brand-mark{font-size:25px}.site-header nav{margin-left:auto;gap:0}.site-header nav a{font-size:12px}.site-header .nav-detail{display:none}.header-login{padding-inline:13px;gap:5px;font-size:13px}.header-login .icon{width:15px;height:15px}.hero{padding:44px 18px 31px}.hero h1{font-size:clamp(29px,7.3vw,44px);line-height:1.43;letter-spacing:-.03em}.hero-intro{font-size:14px;line-height:1.9;margin-top:18px;max-width:420px}.mobile-break{display:initial}.hero-actions{gap:10px;margin-top:23px}.hero-actions .button{padding:11px 16px;min-height:48px;font-size:14px;gap:8px}.demo-controls{display:grid;grid-template-columns:1fr auto;gap:7px;align-items:start;margin-bottom:10px}.demo-tabs{display:grid;grid-template-columns:1fr 1fr;gap:5px}.demo-tabs button{padding:7px 10px;min-height:44px;font-size:12px;gap:6px}.demo-tabs .icon{width:16px;height:16px}.playback{font-size:11px;padding:9px 5px}.window-bar{gap:10px;padding:12px 14px;font-size:11px;min-height:53px}.window-title{gap:7px}.workspace-name{font-size:11px;gap:5px}.workspace-name .icon{width:15px;height:15px}.avatar-stack{display:none}.demo-scene{grid-template-columns:1fr;min-height:620px}.document-toolbar{font-size:11px;padding:13px 15px;gap:8px}.document-toolbar>span:last-child{white-space:nowrap}.paper-page{padding:20px 22px 19px}.paper-page h2{font-size:21px}.paper-page>p{font-size:12px;line-height:1.95}.paper-page .paper-footnote{font-size:11px}.assistant-preview{border-left:0;border-top:1px solid var(--line);padding:18px 22px;gap:12px}.preview-title{font-size:12px}.question-bubble{font-size:12px;padding:10px 12px}.demo-answer{font-size:13px}.demo-answer p{margin:6px 0 10px}.preview-bottom{padding-top:12px}.demo-caption{display:block;font-size:11px;padding:12px 1px 0}.demo-caption a{font-size:11px;min-height:44px;width:max-content}.search-scene,.project-scene{padding:24px 22px;display:flex;flex-direction:column}.scene-heading{align-items:flex-start;gap:10px}.scene-heading h2{font-size:20px;line-height:1.6}.mini-icon{width:36px;height:36px}.search-query{padding:11px 12px;font-size:12px;flex-wrap:wrap;gap:8px}.query-source{margin-left:27px}.search-results article{gap:10px;padding:24px 0;position:relative}.search-results h3{font-size:14px;line-height:1.6}.result-excerpt{font-size:12px;display:block;line-height:1.9;margin-top:9px}.saved-label{position:absolute;bottom:8px;right:0;font-size:11px}.scene-note{margin-top:auto;padding-top:24px;line-height:1.9;font-size:12px}.project-columns{grid-template-columns:1fr;gap:25px;padding-top:4px}.project-materials li{padding:9px 0;font-size:12px}.demo-task{padding:10px 0}.editing-label{font-size:11px}.team-paper h2{font-size:20px}.feature-story{grid-template-columns:1fr;gap:35px;padding-block:65px}.story-copy h2,.team-intro h2,.section-heading h2,.closing h2{font-size:29px}.story-copy>p{font-size:14px;margin-top:18px}.plain-features li{font-size:13px}.source-map{padding:24px}.source-excerpt{padding:20px}.source-excerpt p{font-size:15px}.source-question{font-size:13px}.team-section{padding:55px 0 22px}.team-content{grid-template-columns:1fr;gap:34px}.team-intro>p{font-size:14px;margin-top:18px}.team-flow{gap:23px}.team-flow article{gap:14px;padding-bottom:23px}.team-flow h3{font-size:17px}.team-flow p{font-size:13px}.team-boundary{font-size:11px;margin-top:31px;padding-top:18px;line-height:1.9}.space-section{padding-block:65px 58px}.section-heading{display:block}.section-heading>p{font-size:14px;margin-top:20px;max-width:100%}.space-diagram{gap:0 12px;margin-top:28px}.space-unit{padding:19px 15px 22px;border-radius:10px}.space-unit h3{font-size:17px}.space-unit p{font-size:12px;line-height:1.9}.space-unit br{display:none}.space-unit>.icon{width:24px;height:24px}.project-unit{padding:19px 17px;gap:12px}.project-unit>.icon{width:25px;height:25px}.project-unit p{font-size:12px;line-height:1.9}.start-note{font-size:12px;text-align:left;line-height:1.9;margin-top:20px}.closing{align-items:flex-start;flex-direction:column;gap:24px;padding-block:42px 48px}.closing p{font-size:14px;max-width:400px}.closing .button{font-size:14px}.site-footer{display:block;padding-block:22px}.site-footer nav{gap:5px 18px;margin-top:12px;font-size:11px}.site-footer nav a{min-height:44px}}
@media(max-width:360px){.site-header .brand{font-size:13px;gap:5px}.site-header .brand-mark{font-size:23px}.site-header nav{display:none}.header-login{margin-left:auto}.hero h1{font-size:24px}.hero-actions .button{padding-inline:12px}.workspace-name{font-size:11px}.demo-tabs button{padding-inline:7px}.document-toolbar .editing-label{max-width:79px;white-space:normal;text-align:right}.paper-page{padding-inline:18px}.assistant-preview{padding-inline:18px}.space-unit{padding-inline:13px}}
@media(prefers-reduced-motion:reduce){:root{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}
.demo-video-actions{display:flex;align-items:center;gap:18px;flex-shrink:0}.demo-video-actions .playback{display:inline-flex;align-items:center;justify-content:center;gap:6px;text-decoration:none;font-weight:600;color:var(--green)}.all-videos{display:inline-flex;align-items:center;gap:4px;min-height:44px;font-size:13px;color:var(--green)}.all-videos:hover{text-decoration:underline;text-underline-offset:4px}@media(max-width:1000px){.demo-controls{flex-wrap:wrap}.demo-video-actions{margin-left:auto}}@media(max-width:700px){.demo-controls{grid-template-columns:1fr}.demo-video-actions{width:100%;justify-content:space-between;margin-left:0}}