:root{--paper:#f2efe7;--ink:#302b26;--muted:#716c63;--accent:#865940;--line:#d6cfc2;--deep:#332820;--serif:'Songti SC','Noto Serif CJK SC','STSong',serif;--sans:'PingFang SC','Microsoft YaHei',sans-serif;--header-height:82px;--chapter-height:calc(100svh - var(--header-height));--gutter:clamp(32px,6.7vw,128px)}
*{box-sizing:border-box}html{scroll-padding-top:var(--header-height);background:var(--paper);color:var(--ink)}body{margin:0;font:14px/1.8 var(--sans);-webkit-font-smoothing:antialiased}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{color:inherit;cursor:pointer}a{color:inherit;text-decoration:none}button{border-radius:0}img{display:block;width:100%;height:100%;object-fit:cover}h1,h2,h3,p,ol,ul{margin:0}h1,h2,h3{font-weight:400}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,[tabindex]:focus-visible{outline:2px solid #b68050;outline-offset:6px}button:disabled{opacity:.35;cursor:default}[hidden]{display:none!important}em{font-style:normal}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;top:-80px;left:20px;background:var(--paper);padding:12px 20px;z-index:1000}.skip-link:focus{top:12px}.eyebrow{font-size:11px;letter-spacing:.17em;line-height:1.8}.small-note{font-size:11px;color:var(--muted)}.text-link{display:inline-flex;justify-content:space-between;align-items:center;gap:32px;min-height:44px;border:0;border-bottom:1px solid currentColor;background:none;padding:8px 0;font-size:12px;letter-spacing:.03em}.text-link>span:last-child{font-size:22px;transition:transform .35s}.text-link:hover>span:last-child{transform:translate(3px,-3px)}.solid-link{display:inline-flex;justify-content:space-between;gap:44px;align-items:center;background:var(--ink);color:var(--paper);padding:15px 24px;font-size:13px}.solid-link span{font-size:24px}.serif-title{font:clamp(36px,4.7vw,70px)/1.45 var(--serif);letter-spacing:-.045em}.section-top{display:flex;justify-content:space-between;align-items:center;gap:24px;margin-bottom:32px}.section-foot{display:flex;justify-content:space-between;align-items:center;gap:25px;margin-top:18px}.section-foot>p{font-size:10px;color:var(--muted)}
/* A single, constant header gives every chapter the same safe reading frame. */
.brand-header{height:var(--header-height);position:fixed;inset:0 0 auto;z-index:100;display:flex;align-items:center;justify-content:space-between;padding:0 4%;background:#f2efe7f5;border-bottom:1px solid #d9d0c4;backdrop-filter:blur(14px);gap:28px}.wordmark{font:34px/1.15 var(--serif);letter-spacing:.18em;white-space:nowrap}.wordmark span{display:block;font:8px/1.8 var(--sans);letter-spacing:.16em;margin-top:7px}.brand-header nav{display:flex;gap:30px;font-size:11px;letter-spacing:.07em}.brand-header nav a{position:relative;padding:12px 0}.brand-header nav a:after{content:'';position:absolute;bottom:4px;left:0;width:100%;height:1px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .35s}.brand-header nav a:hover:after,.brand-header nav a[aria-current=location]:after{transform:scaleX(1)}.header-actions{display:flex;gap:24px;align-items:center;font-size:11px;white-space:nowrap}.preview-link{display:flex;gap:20px;align-items:center}.preview-link span{font-size:26px}.login-link{border:1px solid var(--line);padding:10px 20px}.login-link:hover{background:#e6ded0}.brand-page main{padding-top:var(--header-height)}
/* Sections grow with their contents. Short screens never clip a spread. */
.chapter{min-height:var(--chapter-height);padding:42px var(--gutter);position:relative;scroll-margin-top:0;outline-offset:-4px;isolation:isolate}.chapter h2,.chapter h3{text-wrap:balance}.chapter p{text-wrap:pretty}.chapter[data-tone=dark]{color:#f5efe3}.chapter-nav{position:fixed;right:16px;top:50%;transform:translateY(-50%);z-index:110;display:flex;flex-direction:column;align-items:center;gap:9px;color:var(--ink);transition:color .3s}.chapter-nav.is-dark{color:#f3eadd}.chapter-nav>button{width:28px;height:32px;background:transparent;border:0;font-size:20px}.chapter-counter{writing-mode:vertical-rl;font-size:8px;letter-spacing:.15em;margin:5px 0 10px}.chapter-dots{display:flex;flex-direction:column}.chapter-dots button{position:relative;width:28px;height:24px;border:0;background:transparent;display:grid;place-items:center}.chapter-dots i{width:3px;height:3px;border-radius:50%;background:currentColor;opacity:.4;transition:height .35s,opacity .35s}.chapter-dots button[aria-current=true] i{height:16px;opacity:1;border-radius:2px}.chapter-dots button>span{position:absolute;right:35px;white-space:nowrap;padding:3px 9px;background:var(--paper);color:var(--ink);font-size:10px;opacity:0;pointer-events:none;transform:translateX(6px);transition:opacity .2s,transform .2s}.chapter-dots button:hover>span,.chapter-dots button:focus-visible>span{opacity:1;transform:none}#chapter-select{display:none}
/* 00 — a photographic opening, with room for the subject and the words. */
.hero{display:flex;align-items:center;padding-top:65px;padding-bottom:105px;background:#30221e}.hero-photo,.hero-shade{position:absolute;inset:0;z-index:-2;overflow:hidden}.hero-photo img{object-position:67% center;transform:scale(1.035);transition:transform 1.8s}.hero-shade{z-index:-1;background:linear-gradient(90deg,#1c1519cc 0%,#21171965 50%,#221c1a12 100%),linear-gradient(0deg,#21191a90,transparent 40%)}.hero-copy{max-width:720px}.hero .eyebrow{color:#d6c2aa;margin-bottom:32px}.hero h1{font:clamp(54px,7.2vw,112px)/1.22 var(--serif);letter-spacing:-.055em}.hero h1 span{display:block}.hero-description{font-size:14px;line-height:2.1;color:#e1d7ca;margin:34px 0 20px}.hero .text-link{min-width:185px;color:#eee2d1}.hero-bottom{position:absolute;left:var(--gutter);right:var(--gutter);bottom:27px;display:flex;justify-content:space-between;gap:20px;font-size:10px;color:#d3c2b1;letter-spacing:.08em}.hero-bottom small{font-size:8px;letter-spacing:0}
/* 01 — an asymmetric editorial spread. */
.about-section{display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1fr);gap:8%;align-items:center}.about-image{height:clamp(320px,65svh,680px);position:relative;overflow:hidden}.about-image img{object-position:60% center}.about-image:after{content:'';position:absolute;inset:45% 0 0;background:linear-gradient(transparent,#211a18b0)}.about-image>span{position:absolute;z-index:1;bottom:28px;left:28px;color:#f5efe3;font:16px var(--serif);letter-spacing:.12em}.about-copy .eyebrow{margin-bottom:26px}.about-copy h2{margin-bottom:23px}.about-copy .lead{font-size:15px;color:var(--ink);margin-bottom:16px}.about-copy>p:not(.eyebrow):not(.lead){max-width:480px;font-size:12px;color:var(--muted);line-height:2.15;margin-bottom:14px}.about-principles{display:flex;gap:28px;padding:20px 0 26px;font-size:10px;color:var(--muted)}.about-principles b{display:block;color:var(--accent);font:21px var(--serif);margin-bottom:7px}.about-copy .text-link{width:235px}
/* 02 — four service scenes share one canvas and the site-wide navigation. */
.service-section{padding:0;background:#2d211d}.service-film{min-height:var(--chapter-height)}.service-page{position:relative;isolation:isolate;min-height:calc(var(--chapter-height) - 82px);display:flex;align-items:center;background:#2d211d}.service-page-photo,.service-page-shade{position:absolute;inset:0;z-index:-2;overflow:hidden}.service-page-photo img{object-position:68% center;transform:scale(1.04)}.service-page-shade{z-index:-1;background:linear-gradient(90deg,#1e1419d9 0%,#20171983 52%,#21191612 100%),linear-gradient(0deg,#251b188c,transparent 50%)}.service-page-copy{padding:48px var(--gutter);width:68%;max-width:920px}.service-kicker{font-size:11px;letter-spacing:.17em;color:#ddc4a7;margin-bottom:32px}.service-page-copy h3{font:clamp(34px,4.4vw,68px)/1.45 var(--serif);letter-spacing:-.045em;margin-bottom:28px}.service-page-copy>p:not(.service-kicker){max-width:460px;font-size:12px;line-height:2.3;color:#eee4d5}.service-detail{display:flex;gap:30px;margin-top:33px;font-size:10px;color:#dcc7a9}.service-pagination{height:82px;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:12px var(--gutter);background:#30241f}.service-page-meta{display:flex;flex-direction:column;gap:5px;font-size:10px;letter-spacing:.1em}.service-page-meta small{font-size:8px;color:#c0ae9b;letter-spacing:0}.service-page-controls,.service-page-dots{display:flex;align-items:center;gap:10px}.service-page-controls button{width:40px;height:40px;background:transparent;border:0;color:#d7c1a4;font-size:12px}.service-page-controls>button{font-size:20px;border:1px solid #6e5c4c;border-radius:50%;margin:0 10px}.service-page-dots button[aria-current=true]{background:#bba48725;border-bottom:1px solid #e9ddcb;color:#fff8ec}.service-paged .service-pages{display:grid}.service-paged .service-page{grid-area:1/1;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .65s,visibility .65s}.service-paged .service-page.is-active{opacity:1;visibility:visible;pointer-events:auto}.motion-on .service-page-copy{transform:translateY(18px);transition:transform .7s}.motion-on .service-page.is-active .service-page-copy{transform:none}.motion-on .service-page-photo img{transition:transform 1.5s}.service-page.is-active .service-page-photo img{transform:scale(1)}
/* 03 — AI is shown as a collaboration process, not an ornamental badge. */
.agent-section{background:#edece4;padding-top:30px;padding-bottom:26px;display:flex;flex-direction:column;justify-content:center}.agent-section .section-top{margin-bottom:22px}.concept-label{font-size:9px;color:#65736d;border:1px solid #bdc6bc;padding:4px 9px}.agent-heading{display:flex;justify-content:space-between;gap:30px;align-items:flex-end;margin-bottom:26px}.agent-heading h2{font:clamp(28px,3.2vw,46px)/1.45 var(--sans);font-weight:450;letter-spacing:-.055em}.agent-heading h2 span{color:#62756c}.agent-heading>p{font-size:11px;line-height:2;color:#65736d}.agent-workbench{display:grid;grid-template-columns:230px minmax(0,1fr);gap:30px}.agent-role-tabs{display:grid;grid-template-columns:1fr 1fr;border-bottom:1px solid #c3cbc0;padding-bottom:12px;gap:5px}.agent-role-tabs button{padding:6px 5px;background:transparent;border:0;text-align:left;font-size:11px;color:#727d73;min-height:32px}.agent-role-tabs button[aria-selected=true]{color:#263f34;font-weight:600}.agent-steps{padding:20px 0 8px;list-style:none}.agent-steps li{position:relative}.agent-steps li:not(:last-child):before{content:'';position:absolute;left:15px;top:43px;width:1px;height:25px;background:#c4cdc2}.agent-steps button{display:flex;align-items:center;gap:15px;text-align:left;background:transparent;border:0;width:100%;padding:10px 0}.agent-steps button>span{display:grid;place-items:center;font:11px var(--sans);width:30px;height:30px;border:1px solid #bcc8bb;border-radius:50%;color:#768175;background:var(--paper);transition:background .3s,color .3s}.agent-steps button>div{font-size:12px;color:#617261}.agent-steps small{display:block;font-size:9px;color:#758171;margin-top:3px}.agent-steps button[aria-current=step]>span{background:#3e5b48;color:#fff;border-color:#3e5b48}.agent-steps button[aria-current=step]>div{color:#263d30}.play-demo{border:0;background:none;padding:12px 0;font-size:10px;min-height:40px;color:#3c5745}.play-demo>span{font-size:16px;vertical-align:-1px;margin-right:5px}.agent-demo{background:#213a32;color:#edf1e8;min-height:410px;display:flex;flex-direction:column;position:relative;overflow:hidden}.demo-toolbar{height:39px;display:flex;align-items:center;justify-content:space-between;padding:0 20px;border-bottom:1px solid #496057;font-size:9px;gap:20px;flex-shrink:0}.demo-toolbar>span{display:flex;gap:8px;align-items:center}.demo-toolbar i{width:5px;height:5px;border-radius:50%;background:#a5b9a0}.demo-toolbar small{font-size:8px;color:#a6b9ab}.demo-desk{position:relative;flex:1;min-height:320px;display:flex;justify-content:center;align-items:center;padding:24px 30px;perspective:900px}.demo-desk:before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,#bed6bb0a,transparent 65%);pointer-events:none}.source-papers{position:absolute;inset:0;pointer-events:none}.source-papers>div{position:absolute;width:125px;height:154px;background:#d2dac9;color:#4e624f;padding:16px 12px;box-shadow:0 7px 20px #071c1830;left:4%;top:22%;transform:rotate(-12deg);transition:transform .75s,opacity .6s,filter .6s}.source-papers>div:nth-child(2){left:auto;right:4%;top:17%;transform:rotate(11deg);background:#b6c7b0}.source-papers>div:nth-child(3){left:10%;top:43%;transform:rotate(-5deg);background:#e2e1cf}.source-papers small{display:block;font-size:6px;letter-spacing:.1em}.source-papers b{display:block;font:16px var(--serif);margin:16px 0}.source-papers i{display:block;height:1px;background:#83937c;margin-top:9px;opacity:.55}.source-papers i:last-child{width:65%}.demo-connection{position:absolute;inset:0;width:100%;height:100%;fill:none;stroke:#bdd2b3;stroke-width:1;opacity:0}.working-paper{position:relative;z-index:1;width:72%;min-height:280px;padding:20px 26px 16px;background:#f2f0df;color:#2f4335;box-shadow:0 12px 30px #0c1e1635;transform:rotate(-1deg);transition:transform .65s,background .65s,box-shadow .65s}.paper-top{display:flex;justify-content:space-between;font-size:7px;letter-spacing:.12em;color:#78836f;border-bottom:1px solid #ccd1bb;padding-bottom:9px;margin-bottom:17px}.paper-kicker{font-size:9px;color:#77866b;margin-bottom:7px}.working-paper h3{font:24px/1.5 var(--serif);margin-bottom:10px;letter-spacing:-.025em}.paper-summary{font-size:10px;line-height:1.9;color:#71806b;max-width:390px}.paper-points{list-style:none;padding:10px 0 16px;display:flex;flex-direction:column;gap:7px}.paper-points li{font-size:10px;display:flex;gap:9px;align-items:flex-start}.paper-points li:before{content:'—';color:#9ea98d}.paper-foot{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #cbd0b9;padding-top:9px;font-size:7px;color:#7b876f}.paper-confirm{position:absolute;right:21px;bottom:45px;opacity:0;transform:rotate(-8deg);color:#8b5d47;pointer-events:none}.paper-confirm svg{width:120px;fill:none;stroke:#8b5d47;stroke-width:1.5;display:block}.paper-confirm span{position:absolute;top:20px;left:36px;font-size:10px;letter-spacing:.13em}.demo-caption{display:flex;justify-content:space-between;gap:15px;align-items:center;padding:12px 20px;border-top:1px solid #496057;min-height:43px;font-size:9px;color:#c0cdbd;flex-shrink:0}.demo-caption>span{font-variant-numeric:tabular-nums;font-size:8px;white-space:nowrap}.agent-demo[data-ai-stage='1'] .source-papers>div{opacity:.27;filter:blur(1px);transform:translate(26px,5px) rotate(-5deg) scale(.93)}.agent-demo[data-ai-stage='1'] .source-papers>div:nth-child(2){transform:translate(-25px,0) rotate(4deg) scale(.93)}.agent-demo[data-ai-stage='1'] .working-paper{transform:rotate(0) translateY(-3px)}.agent-demo[data-ai-stage='1'] .paper-points li{background:#dce4c765;padding:3px 6px}.agent-demo[data-ai-stage='1'] .demo-connection{opacity:.5}.agent-demo[data-ai-stage='2'] .source-papers>div,.agent-demo[data-ai-stage='3'] .source-papers>div{opacity:.13;filter:blur(2px);transform:translateY(30px) scale(.85)}.agent-demo[data-ai-stage='2'] .working-paper{transform:rotate(1deg)}.agent-demo[data-ai-stage='2'] .paper-confirm{opacity:1}.agent-demo[data-ai-stage='3'] .working-paper{transform:rotate(0);background:#f5f4e9}.agent-demo[data-ai-stage='3'] .paper-points{gap:0;padding-bottom:9px}.agent-demo[data-ai-stage='3'] .paper-points li{padding:9px 0;border-bottom:1px solid #d6dbc8}.agent-demo[data-ai-stage='3'] .paper-points li:before{content:'□';color:#7d9070}.motion-on .agent-demo[data-ai-stage='1'] .demo-connection path{stroke-dasharray:1;animation:trace-path 1.5s both}.motion-on .agent-demo[data-ai-stage='2'] .paper-confirm path{stroke-dasharray:1;animation:trace-path .95s .15s both}.motion-on .agent-demo.is-changing .paper-points li{animation:note-line .6s both}.motion-on .agent-demo.is-changing .paper-points li:nth-child(2){animation-delay:.09s}.motion-on .agent-demo.is-changing .paper-points li:nth-child(3){animation-delay:.18s}@keyframes trace-path{from{stroke-dashoffset:1}to{stroke-dashoffset:0}}@keyframes note-line{from{opacity:0;transform:translateY(7px)}to{opacity:1;transform:none}}
/* 04 — a working manual, with an index and a full readable page. */
.systems-section{background:#dfd8c9;display:flex;flex-direction:column;justify-content:center;padding-top:30px;padding-bottom:30px}.systems-section .section-top{margin-bottom:22px}.systems-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:27px}.systems-heading h2{font:34px/1.35 var(--sans);letter-spacing:-.05em}.systems-heading em{font-family:var(--serif);font-size:43px;color:#77583e}.systems-heading>p{font-size:11px;color:#756d60;line-height:2}.system-book{display:grid;grid-template-columns:36% 64%;box-shadow:0 18px 34px #76614315;position:relative}.system-book:before{content:'';position:absolute;bottom:-4px;left:4px;right:4px;height:4px;border-top:1px solid #bfb5a0;border-bottom:1px solid #bfb5a0;background:#e9e3d4}.book-index{background:#ebe6d8;padding:23px 30px 25px;position:relative}.book-index:after{content:'';position:absolute;right:0;top:0;bottom:0;width:16px;background:linear-gradient(90deg,transparent,#61513c0e)}.book-index-title{display:flex;justify-content:space-between;gap:20px;font-size:9px;color:#8a7b67;padding-bottom:14px;border-bottom:1px solid #cec6b6;margin-bottom:10px}.system-tabs{display:flex;flex-direction:column}.system-tabs button{display:grid;grid-template-columns:26px 1fr 20px;text-align:left;align-items:center;border:0;background:none;min-height:33px;padding:6px 0;font-size:11px;color:#6f695d;gap:7px;position:relative}.system-tabs button>span{font-size:8px;color:#9d927d;font-variant-numeric:tabular-nums}.system-tabs button>i{font-style:normal;opacity:0;font-size:17px}.system-tabs button[aria-selected=true]{color:#775039;font-weight:600}.system-tabs button[aria-selected=true]>i{opacity:1}.system-tabs button:before{content:'';position:absolute;left:-30px;top:8px;bottom:8px;width:3px;background:#896b4f;opacity:0}.system-tabs button[aria-selected=true]:before{opacity:1}.system-sheet{background:#f6f2e6;position:relative;padding:23px 42px 20px;display:flex;flex-direction:column;min-height:408px;transform-origin:left center}.system-sheet:before{content:'';position:absolute;inset:0 auto 0 0;width:25px;background:linear-gradient(90deg,#6250370c,transparent)}.sheet-running-head{display:flex;justify-content:space-between;font-size:8px;letter-spacing:.05em;color:#958671;border-bottom:1px solid #e0d8c6;padding-bottom:14px}.sheet-body{position:relative;flex:1;padding-top:25px}.sheet-number{position:absolute;right:3px;top:13px;font:90px/.95 Georgia,serif;color:#d9d0bb66;pointer-events:none}.sheet-body h3{font:34px/1.5 var(--serif);margin-bottom:18px;position:relative}.sheet-question{font-size:15px;line-height:1.8;max-width:400px;position:relative;margin-bottom:16px}.sheet-description{font-size:11px;line-height:2.1;color:#8a7c68;max-width:410px;position:relative}.sheet-focus{margin-top:22px;padding-left:14px;border-left:2px solid #bdab8c;margin-bottom:20px}.sheet-focus>span{font-size:8px;color:#a6977d;letter-spacing:.1em}.sheet-focus>p{font-size:10px;color:#7b6d56;margin-top:5px}.sheet-footer{display:flex;justify-content:space-between;gap:20px;font-size:8px;color:#9c8f78;border-top:1px solid #e0d8c6;padding-top:13px}.sheet-footer a{color:#735b42}.motion-on .system-sheet.is-turning{animation:paper-turn .55s both}@keyframes paper-turn{from{transform:perspective(1400px) rotateY(-5deg);opacity:.55}to{transform:perspective(1400px) rotateY(0);opacity:1}}.nojs-note{font-size:12px;line-height:2;margin-top:20px}
/* 05 — typography replaces a photograph we have not been given. */
.founder-section{display:grid;grid-template-columns:1fr 1fr;gap:9%;align-items:center;background:#3b3029}.founder-mark{display:grid;grid-template-columns:1fr 1fr;gap:15px;text-align:center;padding:34px 10px;position:relative}.founder-mark>span{font:clamp(75px,9.5vw,145px)/1.45 var(--serif);writing-mode:vertical-rl;letter-spacing:.08em;justify-self:center}.founder-mark>span:last-of-type{color:#c4aa87;padding-top:70px}.founder-mark>small{grid-column:1/-1;font-size:10px;color:#c4ad96;letter-spacing:.18em;margin-top:25px}.founder-copy{max-width:440px}.founder-copy .eyebrow{font-size:10px;color:#baa58f;margin-bottom:32px}.founder-copy h2{font:32px var(--serif)}.founder-copy h2 span{display:block;font:10px var(--sans);color:#bfa994;letter-spacing:.05em;margin-top:15px}.founder-lead{font:23px/1.7 var(--serif);margin:32px 0 20px}.founder-copy>p:not(.eyebrow):not(.founder-lead){font-size:11px;line-height:2.2;color:#cab8a8;margin-bottom:15px}.founder-signature{display:flex;gap:16px;align-items:center;margin-top:32px;font-size:10px;letter-spacing:.2em;color:#ddc4a6}.founder-signature i{width:38px;height:1px;background:#806b58}
/* 06 — the real public sample stays one click away. */
.case-section{display:grid;grid-template-columns:.85fr 1.15fr;align-items:center;gap:8%;background:#f7f5ee}.case-copy .eyebrow{margin-bottom:32px}.case-copy h2{font-size:clamp(36px,4.2vw,60px);margin-bottom:24px}.case-copy>p:not(.eyebrow){max-width:330px;font-size:12px;line-height:2.1;color:var(--muted)}.case-route{display:flex;flex-wrap:wrap;gap:8px;font-size:9px;color:#9a866e;margin:28px 0}.case-route i{font-style:normal;color:#c7bca9}.case-copy .solid-link{min-width:195px}.case-copy>small{display:block;font-size:9px;color:#8a8276;margin-top:17px}.case-visual{position:relative;display:block;transform:rotate(1deg);transition:transform .5s}.case-visual:hover{transform:rotate(0) translateY(-3px)}.case-window{background:#fffefa;border:1px solid #e0d7c8;box-shadow:10px 17px 30px #64544313}.case-window-top,.case-window-bottom{display:flex;justify-content:space-between;gap:15px;padding:18px 22px;font-size:9px;color:#8a7e6b;border-bottom:1px solid #ebe4d8}.case-window-top>span:last-child{color:#8e6e50}.case-window-title{display:flex;justify-content:space-between;gap:15px;align-items:center;padding:24px 24px 5px}.case-window-title small{font-size:8px;color:#9d8c74}.case-window-title h3{font:24px var(--serif);margin-top:10px}.case-score{font:38px Georgia,serif;color:#876c50}.case-score small{display:block;font:8px var(--sans);margin-top:5px}.case-chart{display:flex;align-items:center;padding:12px 18px 10px;gap:6px}.case-chart svg{width:74%;height:auto}.case-facts{display:flex;flex-direction:column;gap:20px;font:20px var(--serif);color:#8e765b}.case-facts b{display:block;font:8px var(--sans);margin-top:5px;font-weight:400}.case-window-bottom{border-top:1px solid #ebe4d8;border-bottom:0;align-items:center}.case-window-bottom i{font-style:normal;font-size:22px}.case-open{display:flex;justify-content:space-between;font-size:10px;color:#8d7e67;padding:14px 2px}.case-open i{font-style:normal}
/* 07 — names are treated as names, with a searchable directory behind them. */
.clients-section{background:#eae6dc;display:flex;flex-direction:column;justify-content:center}.clients-section .section-top{margin-bottom:55px}.clients-editorial{display:grid;grid-template-columns:.8fr 1.2fr;gap:7%;align-items:center;flex:1;max-height:600px}.clients-intro h2{font:clamp(32px,3.6vw,51px)/1.55 var(--serif);margin-bottom:24px;letter-spacing:-.04em}.clients-intro h2 em{color:#846447}.clients-intro>p{font-size:11px;line-height:2.2;color:#7e7567;max-width:310px}.client-regions{display:flex;gap:25px;margin:32px 0 25px;font:16px var(--serif);color:#8c7357}.clients-intro>small{font-size:8px;color:#978d7c;line-height:1.9;display:block}.client-wordmarks{display:grid;grid-template-columns:1fr 1fr;gap:43px 30px;align-items:center;padding-left:25px}.client-wordmarks>div{text-align:center;min-height:85px;display:flex;flex-direction:column;justify-content:center}.client-wordmarks span{font:clamp(23px,2.3vw,36px)/1.3 var(--serif);color:#5e5040;letter-spacing:.1em}.client-wordmarks>div:nth-child(2) span{font-family:var(--sans);font-weight:300;font-size:26px;letter-spacing:.02em}.client-wordmarks>div:nth-child(3) span{font-size:30px;letter-spacing:.03em}.client-wordmarks>div:nth-child(4) span{font-family:var(--sans);font-weight:500;font-size:26px;letter-spacing:.13em}.client-wordmarks>div:nth-child(5) span{font-size:27px;letter-spacing:.08em}.client-wordmarks>div:nth-child(6) span{font-size:32px;letter-spacing:.03em}.client-wordmarks small{display:block;font-size:8px;color:#9b907f;margin-top:15px;letter-spacing:.02em}.clients-bottom{border-top:1px solid #cec4b3;display:flex;justify-content:space-between;align-items:center;margin-top:45px;padding-top:24px;font-size:10px}.clients-bottom>p>span{color:#978a76;margin-left:20px;font-size:9px}.clients-bottom .text-link{border:0;font-size:11px;padding:0}.clients-bottom .text-link>span{font-size:23px}
/* 08 — a useful, compact invitation and a business card. */
.contact-section{background:#282e28;display:flex;flex-direction:column;padding-top:35px;padding-bottom:0}.contact-top{display:flex;justify-content:space-between;gap:25px;align-items:center;color:#b7bfad;font-size:10px}.contact-layout{flex:1;display:grid;grid-template-columns:1.05fr .85fr;gap:13%;align-items:center;padding:55px 0}.contact-invitation h2{font:clamp(35px,4.3vw,62px)/1.55 var(--serif);letter-spacing:-.045em;color:#edeedd;margin-bottom:30px}.contact-invitation>p{font-size:11px;line-height:2.3;color:#adb6a4}.contact-preview{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #6c7965;max-width:330px;padding:17px 0;font-size:12px;margin-top:24px;color:#d9dfcc}.contact-preview i{font-style:normal;font-size:27px;transition:transform .3s}.contact-preview:hover i{transform:translate(3px,-3px)}.contact-stationery{background:#e9e8d9;color:#495342;padding:33px 32px 23px;transform:rotate(-2deg);box-shadow:0 15px 30px #14221844;position:relative}.contact-stationery:before{content:'';position:absolute;inset:6px;border:1px solid #c8cebb;pointer-events:none}.stationery-heading{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #cbd0bb;padding-bottom:22px;gap:10px}.stationery-heading>span{font:27px var(--serif);letter-spacing:.15em}.stationery-heading>small{font-size:7px;writing-mode:vertical-rl;letter-spacing:.12em}.contact-stationery>p{font-size:9px;color:#7a876d;margin-top:28px;margin-bottom:14px}.contact-details{display:flex;flex-direction:column;gap:9px;line-height:1.8;min-height:75px;overflow-wrap:anywhere}.contact-details>strong{font:18px/1.6 var(--serif)}.contact-details>span,.contact-details>small{font-size:9px;color:#89947a}.contact-details>a{font-size:15px}.consultation-topics{display:flex;gap:12px;font-size:8px;color:#7c896d;margin:24px 0}.consultation-topics span:not(:last-child){border-right:1px solid #c3ccb3;padding-right:12px}.contact-stationery>a{border-top:1px solid #c8cfb7;padding-top:18px;display:flex;justify-content:space-between;gap:20px;font-size:9px;color:#526146}.brand-footer{display:flex;justify-content:space-between;align-items:center;gap:25px;border-top:1px solid #535c4f;padding:24px 0;color:#9da991}.footer-wordmark{font:25px var(--serif);letter-spacing:.18em;color:#d7ddcb}.brand-footer p{font-size:9px;line-height:1.9}.brand-footer small{display:block;font-size:7px;margin-top:5px;color:#89957d}.footer-controls{display:flex;gap:24px;align-items:center;font-size:9px}.footer-controls button{background:none;border:0;border-bottom:1px solid #6e7c60;padding:6px 0;font-size:9px;color:inherit}
/* Native modal: it owns its own scroll and always offers a visible close button. */
#client-directory{width:min(820px,calc(100vw - 32px));max-height:85svh;border:1px solid #cabfaa;padding:28px 36px;background:#f4f0e4;color:var(--ink);overscroll-behavior:contain}#client-directory::backdrop{background:#201e1ac2;backdrop-filter:blur(4px)}.directory-head{display:flex;align-items:flex-start;justify-content:space-between;gap:25px}.directory-head h2{font:30px var(--serif);margin-top:12px}.directory-head button{width:40px;height:40px;border:1px solid #cec5b4;background:transparent;font-size:27px}.directory-head .eyebrow{font-size:9px;color:#93836a}#client-directory>p{font-size:10px;color:#8b7e68;margin:17px 0}#client-directory label{display:block;font-size:10px;margin-bottom:7px}#directory-search{display:block;width:100%;padding:12px 14px;border:1px solid #cfc3ad;background:#f9f6ed;color:var(--ink);border-radius:0}.directory-list{display:grid;grid-template-columns:1fr 1fr;gap:0 25px;padding:0;list-style:none}.directory-list li{font-size:11px;padding:12px 0;border-bottom:1px solid #e0d6c2;line-height:1.8}
/* Entry motion only runs for the visible chapter. */
.motion-on .chapter.is-current .enter-item{animation:chapter-enter .85s both}.motion-on .chapter.is-current .enter-item:nth-child(2){animation-delay:.1s}.motion-on .hero.is-current h1 span{animation:hero-title .9s both}.motion-on .hero.is-current h1 span:nth-child(2){animation-delay:.12s}.motion-on .hero.is-current .hero-photo img{transform:scale(1)}.motion-on .chapter.is-current .chapter-image img{animation:image-settle 1.4s both}.motion-on .clients-section.is-current .client-wordmarks>div{animation:chapter-enter .9s both}.motion-on .clients-section.is-current .client-wordmarks>div:nth-child(2){animation-delay:.08s}.motion-on .clients-section.is-current .client-wordmarks>div:nth-child(3){animation-delay:.16s}.motion-on .clients-section.is-current .client-wordmarks>div:nth-child(4){animation-delay:.24s}.motion-on .clients-section.is-current .client-wordmarks>div:nth-child(5){animation-delay:.32s}.motion-on .clients-section.is-current .client-wordmarks>div:nth-child(6){animation-delay:.4s}.motion-on .contact-section.is-current .contact-stationery{animation:card-arrive .9s both}@keyframes chapter-enter{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:none}}@keyframes hero-title{from{opacity:0;clip-path:inset(100% 0 0);transform:translateY(25px)}to{opacity:1;clip-path:inset(0);transform:none}}@keyframes image-settle{from{transform:scale(1.045)}to{transform:scale(1)}}@keyframes card-arrive{from{opacity:0;transform:translateY(20px) rotate(1deg)}to{opacity:1;transform:translateY(0) rotate(-2deg)}}
/* Login shares the palette and header, with no chapter navigation. */
.login-page{background:#f5f1e9;min-height:100svh}.login-page .brand-header{position:relative}.login-main{display:grid;grid-template-columns:1fr 1fr;min-height:var(--chapter-height)}.login-intro{padding:80px 15%;background:#e7ddd0;display:flex;flex-direction:column;justify-content:center}.login-intro h1{font:44px/1.6 var(--serif)}.overline{font-size:11px;letter-spacing:.13em;margin-bottom:22px}.login-intro>p:last-child{font-size:13px;line-height:2.2;color:var(--muted);margin-top:30px}.login-panel{padding:70px 15%;display:flex;flex-direction:column;justify-content:center}.login-panel h2{font:32px var(--serif);margin-bottom:18px}.login-panel>p{font-size:12px;line-height:2;color:var(--muted)}.login-form{margin-top:35px}.login-form label{display:block;font-size:12px;margin-bottom:9px}.login-form input{width:100%;border:1px solid #c3b3a1;background:#faf7ef;padding:14px;margin-bottom:24px;border-radius:0;color:var(--ink)}.login-submit{width:100%;border:0;background:#70513f;color:white;padding:15px}.login-submit:disabled{opacity:.6;cursor:not-allowed}.login-message{color:#944b36;font-size:12px;line-height:1.8;min-height:22px;margin-bottom:15px}.login-help{margin-top:30px;font-size:12px;padding-top:25px;border-top:1px solid var(--line);line-height:2.2}.login-help a{text-decoration:underline;text-underline-offset:5px}.login-secondary{margin-top:22px;font-size:11px;color:var(--muted)}
@media(min-width:1600px){.agent-workbench{grid-template-columns:270px 1fr;gap:55px}.agent-demo{min-height:460px}.demo-desk{min-height:360px;padding:35px}.working-paper{max-width:620px;padding:26px 40px;min-height:300px}.paper-summary,.paper-points li{font-size:12px}.working-paper h3{font-size:30px}.agent-heading{margin-bottom:35px}.agent-steps button{padding:14px 0}.agent-steps li:not(:last-child):before{top:50px;height:30px}.book-index{padding:28px 38px}.system-tabs button{min-height:39px;font-size:13px}.system-sheet{padding:28px 60px}.sheet-body{padding-top:38px}.sheet-body h3{font-size:44px}.sheet-question{font-size:18px}.sheet-description{font-size:13px;max-width:540px}.sheet-focus{margin-top:30px}.system-tabs button:before{left:-38px}.systems-heading h2{font-size:42px}.systems-heading em{font-size:52px}}
@media(max-width:1100px){.brand-header nav{gap:18px}.header-actions{gap:16px}.chapter{--gutter:50px}.agent-workbench{grid-template-columns:195px 1fr;gap:22px}.demo-desk{padding:24px 16px}.working-paper{width:88%;padding:18px 20px}.source-papers>div{width:96px}.book-index{padding:22px}.system-tabs button:before{left:-22px}.system-sheet{padding:22px 28px}.contact-layout{gap:8%}.client-wordmarks{gap:30px 15px;padding-left:5px}.clients-intro h2{font-size:38px}.client-wordmarks span{font-size:26px}.client-wordmarks>div:nth-child(n) span{font-size:26px}.founder-section{gap:6%}.founder-mark>span{font-size:100px}.brand-footer{gap:20px}.footer-controls{gap:15px}}
@media(max-width:900px){.brand-header nav{display:none}.about-section{gap:6%}.agent-heading h2{font-size:31px}.system-book{grid-template-columns:39% 61%}.book-index{padding:20px}.sheet-question{font-size:13px}.sheet-body h3{font-size:30px}.clients-editorial{grid-template-columns:.85fr 1.15fr;gap:5%}.case-section{gap:5%}.case-copy h2{font-size:36px}.case-window-title h3{font-size:19px}.case-score{font-size:30px}.case-chart{padding:12px}.case-facts{font-size:16px}.contact-invitation h2{font-size:36px}.contact-stationery{padding:28px 22px}.stationery-heading>span{font-size:24px}.contact-details>strong{font-size:16px}}
@media(max-width:760px){:root{--header-height:72px;--chapter-height:calc(100svh - 72px - 44px);--gutter:26px}.brand-header{padding:0 24px;gap:14px}.wordmark{font-size:27px}.wordmark span{font-size:6px;margin-top:6px}.header-actions{gap:16px;font-size:9px}.preview-link{gap:9px}.preview-link span{font-size:21px}.login-link{padding:8px 13px}.brand-page.js-enhanced{padding-bottom:44px}.chapter{--gutter:26px;padding:35px var(--gutter)}.chapter-nav{top:auto;bottom:0;left:0;right:0;transform:none;height:44px;flex-direction:row;justify-content:center;gap:22px;background:#f2efe7f7;color:var(--ink)!important;border-top:1px solid #d5ccb8;backdrop-filter:blur(12px)}.chapter-nav>button{height:32px;font-size:18px;width:40px}.chapter-counter,.chapter-dots{display:none}#chapter-select{display:block;font-size:10px;letter-spacing:.03em;max-width:175px;min-width:140px;background:transparent;color:var(--ink);border:0;padding:8px 12px;text-align:center}.section-top{margin-bottom:25px;align-items:flex-start}.section-top .small-note{display:none}.eyebrow{font-size:9px}.hero{padding:60px 28px 85px;align-items:center}.hero-photo img{object-position:72% center}.hero-shade{background:linear-gradient(90deg,#1c1519d4,#21171952),linear-gradient(0deg,#20191aa8,transparent 55%)}.hero .eyebrow{margin-bottom:27px}.hero h1{font-size:clamp(45px,12.8vw,76px);line-height:1.32}.hero-description{font-size:11px;line-height:2;margin:26px 0 20px}.hero .text-link{font-size:10px;min-width:170px}.hero-bottom{left:28px;right:28px;bottom:24px;display:block;font-size:8px}.hero-bottom small{display:block;margin-top:8px;font-size:6px}.about-section{display:grid;grid-template-columns:1fr;gap:28px;padding-top:30px;padding-bottom:32px}.about-image{height:220px;order:2}.about-image>span{font-size:12px;left:20px;bottom:18px}.about-copy .eyebrow{margin-bottom:16px}.about-copy h2{font-size:35px;line-height:1.35;margin-bottom:15px}.about-copy .lead{font-size:12px;margin-bottom:13px}.about-copy>p:not(.eyebrow):not(.lead){font-size:11px;line-height:2;margin-bottom:10px}.about-principles{padding:10px 0 16px;gap:25px;font-size:9px}.about-principles b{font-size:18px;margin-bottom:5px}.about-copy .text-link{font-size:10px;width:215px;min-height:34px}.service-section{padding:0}.service-page{min-height:calc(var(--chapter-height) - 104px)}.service-page-copy{width:100%;padding:38px 28px}.service-kicker{font-size:10px;margin-bottom:24px}.service-page-copy h3{font-size:clamp(27px,8.8vw,42px);line-height:1.45;margin-bottom:23px}.service-page-copy>p:not(.service-kicker){font-size:11px;line-height:2.05;max-width:430px}.service-detail{gap:24px;margin-top:26px;font-size:9px}.service-page-photo img{object-position:72% center}.service-page-shade{background:linear-gradient(90deg,#201519da,#21191965),linear-gradient(0deg,#23191ab8,transparent 75%)}.service-pagination{height:104px;padding:12px 25px;display:flex;flex-direction:column-reverse;gap:9px;align-items:stretch}.service-page-controls{justify-content:space-between;gap:5px}.service-page-controls button{width:33px;height:33px;font-size:11px}.service-page-controls>button{margin:0;font-size:18px}.service-page-dots{gap:10px}.service-page-meta{flex-direction:row;justify-content:space-between;align-items:center;gap:15px;font-size:7px;letter-spacing:0}.service-page-meta small{font-size:6px}.agent-section{padding-top:30px;padding-bottom:24px;justify-content:flex-start}.agent-section .section-top{margin-bottom:21px}.concept-label{font-size:7px;padding:3px 5px}.agent-heading{display:block;margin-bottom:20px}.agent-heading h2{font-size:26px;line-height:1.45}.agent-heading>p{font-size:10px;line-height:1.8;margin-top:12px}.agent-heading>p br{display:none}.agent-workbench{display:flex;flex-direction:column;gap:17px}.agent-sidebar{display:contents}.agent-role-tabs{display:flex;justify-content:space-between;gap:8px;order:0;padding-bottom:8px}.agent-role-tabs button{font-size:9px;padding:3px 0;min-height:30px}.agent-demo{order:1;min-height:360px}.demo-toolbar{height:33px;padding:0 12px;font-size:7px;gap:5px}.demo-toolbar small{font-size:6px}.demo-desk{min-height:283px;padding:18px 10px}.working-paper{width:88%;padding:14px 17px;min-height:250px;transform:rotate(-1deg)}.paper-top{font-size:6px;margin-bottom:13px;padding-bottom:8px}.working-paper h3{font-size:20px;margin-bottom:9px}.paper-summary{font-size:9px}.paper-points li{font-size:9px}.paper-points{padding-bottom:12px;gap:6px}.paper-foot{font-size:6px;gap:6px}.paper-confirm{right:8px;bottom:37px}.paper-confirm svg{width:96px}.paper-confirm span{top:15px;left:28px;font-size:8px}.source-papers>div{width:85px;height:120px;padding:12px 9px}.source-papers b{font-size:13px}.source-papers small{font-size:5px}.demo-caption{padding:9px 12px;font-size:8px;min-height:37px}.demo-caption>span{font-size:7px}.agent-steps{order:2;display:grid;grid-template-columns:repeat(4,1fr);padding:0;margin:0;gap:5px}.agent-steps button{display:flex;flex-direction:column;gap:6px;text-align:center;padding:0}.agent-steps button>span{width:25px;height:25px;font-size:9px}.agent-steps button>div{font-size:9px}.agent-steps small{display:none}.agent-steps li:not(:last-child):before{top:12px;left:calc(50% + 20px);width:calc(100% - 35px);height:1px}.play-demo{order:3;align-self:flex-start;padding:0;min-height:28px;font-size:9px}.agent-section .section-foot{margin-top:15px;gap:10px;align-items:flex-start}.section-foot>p{font-size:8px;line-height:1.8;max-width:160px}.section-foot .text-link{font-size:9px;gap:8px;min-height:30px;padding:0;border:0}.section-foot .text-link span{font-size:17px}.systems-section{padding-top:30px;padding-bottom:35px;justify-content:flex-start}.systems-section .section-top{margin-bottom:21px}.systems-heading{display:block;margin-bottom:22px}.systems-heading h2{font-size:27px;line-height:1.4}.systems-heading em{font-size:33px}.systems-heading>p{font-size:10px;margin-top:13px;line-height:1.7}.systems-heading>p br{display:none}.system-book{display:flex;flex-direction:column}.book-index{padding:15px 16px 12px}.book-index:after{display:none}.book-index-title{font-size:7px;padding-bottom:10px;margin-bottom:6px}.system-tabs{display:grid;grid-template-columns:1fr 1fr;column-gap:18px}.system-tabs button{min-height:29px;grid-template-columns:19px 1fr 12px;font-size:9px;gap:4px;padding:4px 0}.system-tabs button>span{font-size:7px}.system-tabs button>i{font-size:14px}.system-tabs button:before{display:none}.system-sheet{padding:18px 22px 16px;min-height:322px}.system-sheet:before{display:none}.sheet-running-head{font-size:7px;padding-bottom:11px}.sheet-body{padding-top:17px}.sheet-number{font-size:65px;top:12px}.sheet-body h3{font-size:27px;margin-bottom:12px}.sheet-question{font-size:12px;margin-bottom:12px}.sheet-description{font-size:10px;line-height:2}.sheet-focus{margin-top:17px;padding-left:10px;margin-bottom:18px}.sheet-focus>span{font-size:7px}.sheet-focus>p{font-size:8px;margin-top:3px}.sheet-footer{font-size:6px;gap:8px;padding-top:10px}.founder-section{grid-template-columns:1fr;gap:22px;padding-top:35px;padding-bottom:40px}.founder-mark{display:flex;align-items:center;justify-content:center;gap:18px;padding:0 0 10px;flex-wrap:wrap}.founder-mark>span{writing-mode:horizontal-tb;font-size:48px!important;letter-spacing:.1em}.founder-mark>span:last-of-type{padding-top:0}.founder-mark>small{font-size:8px;width:100%;margin-top:0;letter-spacing:.15em}.founder-copy 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@media(max-width:360px){.brand-header{padding:0 18px}.header-actions{gap:10px}.wordmark{font-size:25px}.chapter{--gutter:22px}.hero{padding-left:24px;padding-right:24px}.hero h1{font-size:43px}.agent-heading h2{font-size:24px}.concept-label{font-size:6px}.working-paper{width:92%;padding:13px 14px}.working-paper h3{font-size:18px}.paper-summary{font-size:8px}.paper-points li{font-size:8px}.demo-toolbar{font-size:6px}.contact-invitation h2{font-size:29px}.system-sheet{padding:17px 18px}.client-wordmarks>div:nth-child(n) span{font-size:22px}.client-wordmarks small{font-size:5.5px}.service-page-copy{padding-left:24px;padding-right:24px}.service-page-copy h3{font-size:28px}}
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/* Reading details keep enough contrast against the warm papers. */
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.paper-top,.paper-kicker,.paper-summary,.paper-foot,.agent-heading>p,.agent-steps small,.agent-role-tabs button,.agent-section .section-foot>p{color:#5b6d57}
.contact-details>span,.contact-details>small,.contact-stationery>p,.consultation-topics{color:#5c694e}
#client-directory>p,.directory-head .eyebrow{color:#74664f}
.system-tabs button>i{line-height:1}
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/* Keep the camera operator and operations team inside portrait crops. */
@media(max-width:760px){.service-page[data-service-page="2"] .service-page-photo img{object-position:92% center}.service-page[data-service-page="3"] .service-page-photo img{object-position:84% center}}

input::placeholder,textarea::placeholder{color:#78727a;opacity:1}