:root{--paper:#f7f4ed;--paper-deep:#eeeae0;--ink:#293f36;--soft-ink:#667569;--muted:#58655b;--line:#d9ddd3;--red:#9a5141;--serif:"Noto Serif CJK SC","Songti SC","SimSun",serif;--sans:"Noto Sans CJK SC","Microsoft YaHei","PingFang SC",sans-serif;--header:88px;--ease:cubic-bezier(.2,.75,.25,1)}
.languages a{display:flex;align-items:center;justify-content:center;padding:1px 6px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header) + 24px);font-size:16px;background:var(--paper)}body{margin:0;color:var(--ink);font-family:var(--sans);line-height:1.8;-webkit-font-smoothing:antialiased}:is(h1,h2:where([data-page-heading])),h2,h3,p{margin:0}:is(h1,h2:where([data-page-heading])),h2,h3{font-family:var(--serif);font-weight:500;line-height:1.45}h2{font-size:clamp(32px,3.15vw,46px);letter-spacing:.04em}h3{font-size:26px;letter-spacing:.025em}p{font-size:18px}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer;color:inherit;background:none;border:0}button,a{-webkit-tap-highlight-color:transparent}button:disabled{cursor:default}a:focus-visible,button:focus-visible{outline:3px solid var(--red);outline-offset:5px;border-radius:3px}svg{fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}.svg-library{position:absolute;width:0;height:0;overflow:hidden}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;clip-path:inset(50%);overflow:hidden;white-space:nowrap}.wrap{width:min(1200px,calc(100% - 112px));margin:0 auto}.section-pad{padding-top:112px;padding-bottom:112px}.eyebrow{font-size:14px;letter-spacing:.17em;color:var(--muted);margin-bottom:20px}.muted{color:var(--muted)}.soft-ink{color:var(--soft-ink)}.section-top{display:flex;justify-content:space-between;align-items:flex-end;gap:72px;margin-bottom:52px}.section-summary{max-width:350px;font-size:17px;color:var(--muted)}.text-link{display:inline-flex;gap:14px;align-items:center;min-height:48px;font-size:16px;position:relative}.text-link svg{width:25px;height:25px;transition:transform .25s}.text-link:hover svg{transform:translateX(5px)}.text-link:hover{color:var(--red)}.text-link::after{content:"";height:1px;position:absolute;bottom:6px;left:0;right:0;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .3s}.text-link:hover::after{transform:scaleX(1)}.button{min-height:52px;display:inline-flex;align-items:center;justify-content:center;gap:12px;padding:12px 25px;border-radius:5px;font-size:17px;line-height:1.6;transition:background .2s,transform .25s,box-shadow .2s}.button svg{width:21px;height:21px}.primary{background:var(--ink);color:var(--paper);border:1px solid var(--ink)}.primary:hover{background:#3e5b4b;box-shadow:0 8px 22px #293f3615;transform:translateY(-2px)}.outline{border:1px solid #7c8d7c;background:#ffffff4d}.outline:hover{background:white}.text-button{min-height:48px;padding:8px 12px;font-size:15px;text-decoration:underline;text-underline-offset:7px}.skip-link{position:fixed;z-index:200;top:-80px;left:20px;padding:12px 20px;background:var(--paper)}.skip-link:focus{top:5px}.art-caption{font-size:13px;text-align:center;color:var(--muted);letter-spacing:.05em}.section-footnote{font-size:13px;margin-top:18px;text-align:center;color:var(--muted)}
.site-header{position:fixed;left:0;top:0;right:0;z-index:50;background:#f7f4ede8;backdrop-filter:blur(16px);border-bottom:1px solid #293f3615}.header-inner{max-width:1460px;margin:auto;height:var(--header);padding:0 48px;display:flex;align-items:center;justify-content:space-between;gap:28px}.brand{display:inline-flex;align-items:baseline;gap:12px;white-space:nowrap;min-height:48px;align-content:center;line-height:48px}.brand-main{font-family:var(--serif);font-size:29px;font-weight:600;letter-spacing:.03em}.brand-sub{font-size:13px;letter-spacing:.12em}.main-nav{display:flex;align-items:center;gap:35px}.main-nav a{font-size:16px;min-height:48px;display:flex;align-items:center;gap:8px;position:relative;white-space:nowrap}.main-nav a::after{content:"";height:2px;position:absolute;left:0;right:0;bottom:1px;background:var(--red);transform:scaleX(0);transform-origin:left;transition:transform .25s}.main-nav a:hover::after,.main-nav a[aria-current]::after{transform:scaleX(1)}.main-nav svg{width:19px;height:19px}.main-nav .nav-guide{color:var(--red)}.languages{display:flex;align-items:center;gap:3px;font-size:13px}.languages :is(button,a){width:40px;min-height:48px;font-size:15px;color:var(--muted)}.languages :is(button,a)[aria-pressed=true]{color:var(--ink);font-weight:700;text-decoration:underline;text-underline-offset:6px}.languages span{color:#9aa095}.reading-progress{position:absolute;left:0;bottom:-1px;right:0;height:2px}.reading-progress span{display:block;transform-origin:left;width:100%;height:100%;background:var(--red);transform:scaleX(0)}
.hero{min-height:800px;height:min(960px,100svh);position:relative;overflow:hidden;background:#f4f0e7;margin-top:var(--header);isolation:isolate}.hero-art{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:60% 65%;z-index:-3}.hero-paper{position:absolute;inset:0;z-index:-2;background:linear-gradient(90deg,#f7f4edcc 0%,#f7f4ed88 28%,#f7f4ed0a 58%,transparent 75%)}.hero-inner{position:relative;padding-top:clamp(88px,12vh,150px)}.hero .eyebrow{display:flex;align-items:center;gap:12px;color:var(--red);margin-bottom:24px}.red-stroke{width:22px;height:2px;background:var(--red)}.hero :is(h1,h2:where([data-page-heading])){font-size:clamp(45px,4.7vw,72px);line-height:1.55;letter-spacing:.06em;max-width:760px}.hero-description{font-size:22px;letter-spacing:.025em;margin-top:28px}.hero-note{max-width:530px;font-size:17px;margin-top:10px;color:var(--muted)}.hero-actions{display:flex;align-items:center;gap:30px;margin-top:36px}.hero-trust{display:flex;gap:16px;align-items:center;flex-wrap:wrap;margin-top:36px;font-size:14px;color:#4a5b4e;letter-spacing:.035em}.hero-trust i{height:12px;width:1px;background:#74847460}.scroll-invitation{position:absolute;left:max(56px,calc((100% - 1200px)/2));bottom:35px;display:flex;gap:16px;align-items:center;font-size:13px;color:#405b4c;min-height:44px}.scroll-line{height:36px;width:1px;background:#6a796754;position:relative;overflow:hidden}.scroll-line:after{content:"";position:absolute;inset:0;background:var(--ink);transform:translateY(-100%);animation:scroll-line 3.2s infinite}.hero-side-note{position:absolute;right:30px;top:110px;writing-mode:vertical-rl;font-family:var(--serif);font-size:14px;letter-spacing:.24em;color:#5062549e}.intro{display:grid;grid-template-columns:1.05fr 1fr;gap:40px 90px}.intro-copy{padding-top:45px}.intro-copy p+p{margin-top:18px}.intro-copy .text-link{margin-top:18px}.journey{grid-column:1/-1;list-style:none;margin:24px 0 0;padding:32px 0 0;display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);gap:42px}.journey li{display:grid;grid-template-columns:48px 1fr;column-gap:18px}.journey li>span{grid-row:1/3;font:32px/1.6 Georgia,serif;color:#859282}.journey strong{font-size:18px;font-weight:500}.journey small{font-size:14px;color:var(--muted)}
.craft-section{background:#e9ede6;position:relative}.craft-section:before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 50% 70%,#f7f4ed55,transparent 70%);pointer-events:none}.craft-section .wrap{position:relative}.showcase-tabs{display:flex;gap:32px;align-items:center;margin:0 0 24px;border-bottom:1px solid #293f3626}.showcase-tabs button{min-height:54px;font-size:17px;padding:10px 0 15px;border-bottom:2px solid transparent}.showcase-tabs button[aria-selected=true]{border-color:var(--red);color:var(--red)}.showcase{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(285px,1fr);background:var(--paper);border:1px solid #c7d0c3;border-radius:10px;overflow:hidden;box-shadow:0 18px 55px #293f3610}.showcase-canvas{background:radial-gradient(ellipse at 45% 70%,#e7e9dd66,transparent 75%),#f5f3eb;min-width:0;padding:24px 18px 5px;position:relative}.canvas-caption{display:flex;align-items:center;gap:11px;margin:0 8px 8px;font-family:var(--serif);font-size:18px}.small-seal{display:inline-grid;place-items:center;width:25px;height:25px;border:1px solid #9a514166;color:var(--red);font-size:15px;border-radius:2px}.canvas-example{margin-left:auto;font-family:var(--sans);font-size:11px;color:var(--muted)}.graph-scene{width:100%;height:auto;display:block}.scene-node rect{fill:#fbf8ef;stroke:#afbbab;stroke-width:1.25;filter:url(#paper-shadow)}.scene-node text{fill:var(--ink);stroke:none;text-anchor:middle;font-family:var(--serif);font-size:24px}.scene-node .node-sub{fill:#6c7869;font-size:13px;font-family:var(--sans)}.root-node rect{stroke:#947c55;fill:#faf4e4;stroke-width:1.5}.scene-guides path{stroke:#a4b2a0;stroke-width:1;stroke-dasharray:4 5}.scene-connect{stroke:#81927e;stroke-width:1.5}.scene-labels text{font-family:var(--sans);font-size:15px;stroke:none;fill:#53674f}.scene-labels text:nth-child(2){font-size:12px;text-anchor:middle;fill:#6c7869}.created-node{opacity:0;transition:opacity .45s}.created-node.is-created{opacity:1}.gesture-cursor>path{fill:#334a3b;stroke:#f8f5ed;stroke-width:1.5}.cursor-halo{fill:#bc83591a;stroke:#ac765d88;stroke-width:1}.cursor-dot{fill:var(--red);stroke:var(--paper);stroke-width:1}.gesture-trail{stroke:var(--red);stroke-width:2;stroke-dasharray:5 5;opacity:.7}.showcase-story{padding:40px 32px;border-left:1px solid #d9ddd3;display:flex;flex-direction:column;align-items:flex-start;justify-content:center}.showcase-story .eyebrow{font-size:12px;margin-bottom:13px}.showcase-story h3{font-size:29px;margin-bottom:20px}.showcase-story>p:not(.eyebrow){font-size:16px;color:var(--muted)}.direction-controls{display:grid;grid-template-columns:1fr 1fr;gap:8px;width:100%;margin:24px 0}.direction-controls button{display:flex;align-items:center;gap:8px;min-height:46px;border:1px solid #ccd3c7;font-size:14px;border-radius:4px;padding:6px 10px}.direction-controls button>span:first-child{font-size:21px;line-height:1}.direction-controls button[aria-pressed=true],.direction-controls button:hover{background:#dde5d8;border-color:#7d9077}.demo-controls{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-top:8px}.demo-controls .button{font-size:15px;min-height:47px;padding:10px 17px}.showcase-story .demo-status{margin-top:18px;font-size:13px!important;min-height:48px}.demo-progress{width:100%;height:2px;background:#dfe3d8;margin:13px 0}.demo-progress span{display:block;height:100%;width:0;background:var(--red)}.showcase-story>.text-link{font-size:14px;margin-top:6px}.branch-outline{fill:#d6be8112;stroke:#a58d6260;stroke-dasharray:5 5}.move-hint{stroke:#9a51414d;stroke-dasharray:5 5}.target-node rect{fill:#e7ede1;stroke:#92a28a}.mouse-indicator>path{fill:#f7f4ed;stroke:#617260;stroke-width:1.5}.mouse-indicator>.right-mouse-fill{fill:#a6614c;stroke:none}.mouse-indicator text{font-family:var(--sans);font-size:14px;text-anchor:middle;fill:var(--red);stroke:none}.reconnect-steps{padding:0 0 0 20px;margin:18px 0;color:var(--muted);font-size:15px}.reconnect-steps li{margin-bottom:10px}#reconnect-new-line{opacity:0}
.collection-flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));list-style:none;gap:35px;padding:0;margin:0}.collection-flow li{position:relative}.flow-number{display:block;font:14px Georgia,serif;color:#7b8878;border-top:1px solid #b5c0b0;padding-top:14px}.flow-art{height:160px;position:relative;margin:20px 0 25px;display:flex;flex-direction:column;justify-content:center}.collection-flow h3{font-size:23px;margin-bottom:12px}.collection-flow p{font-size:15px;color:var(--muted)}.sheet-art{background:#faf8f0;box-shadow:0 8px 18px #46523c0c;border:1px solid #c6d0be;width:95%;height:160px;padding:10px 14px;transform:rotate(-3deg);font-family:var(--serif);font-size:12px}.sheet-title{font-size:15px;border-bottom:1px solid #becab8;padding-bottom:7px;text-align:center}.sheet-row{display:flex;align-items:center;gap:8px;margin-top:8px;border-bottom:1px solid #ccd4c7}.sheet-row i{flex:1;height:1px;background:#c1cbb9}.stack-art{align-items:center}.stack-art span{position:absolute;border:1px solid #c2cdbb;background:#f9f7ef;width:107px;height:133px;box-shadow:0 8px 20px #46523c08}.stack-art span:nth-child(1){transform:translate(25px,-4px) rotate(8deg)}.stack-art span:nth-child(2){transform:translate(9px,2px) rotate(-5deg)}.stack-art span:nth-child(3){display:grid;place-items:center;transform:translate(-10px,6px) rotate(-9deg)}.stack-art svg{width:50px;height:50px;stroke:#86977c;stroke-width:1}.import-art{align-items:center}.import-art>svg{width:170px;height:150px;stroke-width:.7;stroke:#85977d}.import-art span{position:absolute;top:35px;text-align:center;font-family:var(--serif);font-size:15px;line-height:1.8}.import-art i{position:absolute;bottom:48px;height:4px;width:60%;border-radius:3px;background:linear-gradient(90deg,#8a9d7b 70%,#e3e8dd 70%)}.results-art{gap:9px;padding:0 6px}.results-art span{display:flex;align-items:center;gap:14px;background:#f6f6efbb;border:1px solid #d2dacb;border-radius:5px;padding:9px 14px;font-size:13px}.results-art b{font-weight:400;color:#788e71;border:1px solid currentColor;border-radius:50%;display:inline-grid;place-items:center;width:23px;height:23px}.results-art span:nth-child(2) b{color:#a96957}.results-art span:nth-child(3) b{color:#977e53}
.formats-section{background:#f0eee6}.format-gallery{display:grid;grid-template-columns:310px minmax(0,1fr);gap:48px;align-items:center}.format-picker{display:flex;flex-direction:column}.format-picker button{display:flex;align-items:center;gap:17px;min-height:80px;text-align:left;border-bottom:1px solid #c8cebf;padding:14px 8px;transition:padding .25s,color .25s}.format-picker button>span{font:13px Georgia,serif;color:#7b8772}.format-picker strong{font-family:var(--serif);font-size:22px;font-weight:400}.format-picker svg{margin-left:auto;width:24px;height:24px;opacity:.2}.format-picker button[aria-selected=true]{color:var(--red);padding-left:15px}.format-picker button[aria-selected=true] svg{opacity:1}.format-picker p{font-size:14px;margin-top:22px}#format-preview{min-width:0}.book-display{position:relative;min-height:400px;display:flex;align-items:center;justify-content:center;padding-left:44px;padding-top:25px}.book-cover{position:absolute;left:10px;top:15px;width:164px;height:330px;background:#496054;border:1px solid #2a3e34;box-shadow:inset 8px 0 0 #31483c,inset 11px 0 0 #dae1ca80,0 14px 30px #243d2c10;transform:rotate(-8deg);border-radius:2px}.book-label{font-family:var(--serif);position:absolute;top:33px;left:51px;writing-mode:vertical-rl;background:#f3efd8;border:1px solid #d1cbb1;padding:17px 13px;font-size:21px;letter-spacing:.15em}.book-cover i{position:absolute;left:40px;bottom:37px;width:26px;height:26px;border:1px solid #b79567;opacity:.7}.book-spread{position:relative;width:100%;display:grid;grid-template-columns:1fr 1fr;min-height:348px;transform:rotate(2deg);box-shadow:0 17px 25px #3b4a2f15;border:1px solid #b4bea4;border-radius:2px}.book-page{position:relative;min-width:0;padding:19px 14px;background:linear-gradient(90deg,#f9f6e9 82%,#e5e0cf);border-left:1px solid #e0dbc9;box-shadow:inset 0 -5px 0 #e4e0d2}.book-page+.book-page{background:linear-gradient(90deg,#d9d6c5,#f9f6e9 16%);border-left:1px solid #c0c4ac}.page-top{font-family:var(--serif);font-size:13px;text-align:center;border-bottom:1px solid #a0ad91;padding-bottom:9px}.page-bottom{font-family:var(--serif);font-size:11px;text-align:center;position:absolute;left:0;right:0;bottom:13px}.book-diagram{height:258px;padding:10px 0;overflow:hidden}.book-diagram svg{width:100%;height:100%;font-family:var(--serif);stroke:#819076}.book-diagram text{stroke:none;fill:#3c4d3d}.book-diagram .print-node{fill:none;stroke-width:1}.book-diagram .print-line{stroke-width:1}.book-diagram .print-mini{font-size:8px}.book-diagram .print-name{font-size:13px}.book-diagram .printed-text{font-size:10px;stroke:none;fill:#5b6553}.book-display+.art-caption{margin-top:8px}.binding-row{margin-top:75px;border-top:1px solid #c7cebd;padding-top:55px;display:grid;grid-template-columns:1fr 1.3fr;gap:70px;align-items:center}.binding-row h3{font-size:29px;margin-bottom:16px}.binding-row p:not(.eyebrow){font-size:16px;color:var(--muted)}.binding-picker{display:flex;gap:10px;margin-top:20px}.binding-picker button{font-size:15px;min-height:48px;padding:8px 18px;border:1px solid #9faf94;border-radius:4px}.binding-picker button[aria-pressed=true]{background:#55694b;color:#f7f4ed}.binding-art{position:relative;padding:20px 12px 35px;min-width:0}.binding-paper{position:relative;background:#faf7e9;border:1px solid #adb99c;padding:15px;box-shadow:0 10px 22px #3b4a2f10;transition:background .3s}.binding-paper svg{width:100%;display:block;height:210px}.binding-paper .print-name{font-size:13px}.binding-paper .print-node{fill:#fbf8ed;stroke:#829374;stroke-width:1}.binding-paper .print-line{stroke:#829374;stroke-width:1}.binding-paper text{stroke:none;fill:var(--ink);font-family:var(--serif);text-anchor:middle}.binding-art .art-caption{position:absolute;left:0;right:0;bottom:0;font-size:12px!important}.fold-line{position:absolute;top:0;bottom:0;width:3px;background:linear-gradient(90deg,#7a8e6730,#ffffff77)}.fold-one{left:33.333%}.fold-two{left:66.666%}.scroll-rod{display:none;position:absolute;top:14px;bottom:30px;width:17px;background:linear-gradient(90deg,#5d5140,#b9a58a,#645340);border-radius:7px;z-index:1}.rod-left{left:2px}.rod-right{right:2px}.binding-art[data-binding=scroll] .scroll-rod{display:block}.binding-art[data-binding=scroll] .fold-line{display:none}.binding-art[data-binding=scroll] .binding-paper{border:9px solid #7b8b69}
.privacy-section{background:#30463d;color:#f4f0e6;overflow:hidden}.privacy-inner{display:grid;grid-template-columns:1.25fr 1fr;gap:70px;align-items:center}.privacy-inner .eyebrow{color:#c9d2c0}.privacy-inner h2{font-size:clamp(33px,3.3vw,47px);margin-bottom:24px}.privacy-inner p:not(.eyebrow){max-width:550px;color:#d4dbcb;font-size:17px}.privacy-notes{display:flex;gap:34px;margin-top:32px}.privacy-notes>span{display:flex;gap:10px;align-items:center;font-size:15px;color:#e0e4d7}.privacy-notes svg{width:23px;height:23px}.archive-illustration{position:relative;min-height:300px;display:flex;align-items:center;justify-content:center;color:#e0e6d3}.archive-ring{position:absolute;inset:10px 30px;border:1px solid #a6b49a25;border-radius:50%;transform:rotate(-16deg)}.archive-device{width:340px;height:224px;border:1px solid #a8b69b60;padding:13px;border-radius:9px;background:#455b4e77;box-shadow:0 30px 60px #101e121c;position:relative;transform:rotate(-3deg)}.archive-device:after{content:"";position:absolute;left:26px;right:26px;height:12px;border:1px solid #a8b69b60;border-top:0;bottom:-12px;border-radius:0 0 8px 8px}.archive-screen{padding:13px;display:flex;flex-direction:column;align-items:center;border:1px solid #a8b69b30;height:100%;font-family:var(--serif);font-size:17px}.archive-screen svg{width:220px;height:135px;stroke:#a5b49a;stroke-width:1}.archive-screen rect{fill:#81957522}.archive-envelope{position:absolute;right:0;bottom:20px;padding:20px;width:116px;height:122px;border:1px solid #b8c2ac70;transform:rotate(9deg);border-radius:5px;background:#597059;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;font-size:13px}.archive-envelope svg{width:37px;height:37px;stroke:#d1dbc4;stroke-width:1}
.reading-display{position:relative;display:flex;align-items:center;justify-content:center;gap:42px;padding:28px 40px 64px;background:radial-gradient(ellipse at center,#e7ebdf80,transparent 72%);min-width:0}.reader-desktop{width:650px;position:relative;border:1px solid #a5b098;border-radius:9px;background:#f6f4eb;box-shadow:0 13px 30px #43523312;padding-bottom:20px;margin-bottom:30px;min-width:0}.reader-bar{height:38px;display:flex;align-items:center;gap:6px;padding:0 18px;border-bottom:1px solid #d3d9c9;font-size:11px}.reader-bar i{width:6px;height:6px;border-radius:50%;background:#bac4ae}.reader-bar span{margin-left:15px}.reader-content{display:grid;grid-template-columns:1fr 180px;padding:24px 22px;gap:20px;min-width:0}.reader-content>div{height:230px;min-width:0}.reader-content svg{width:100%;height:100%}.reader-content .print-node,.phone-screen .print-node{fill:#faf7e9;stroke:#8c9c7f;stroke-width:1}.reader-content .print-line,.phone-screen .print-line{stroke:#8c9c7f;stroke-width:1}.reader-content svg text,.phone-screen svg text{fill:var(--ink);stroke:none;text-anchor:middle;font-family:var(--serif);font-size:13px}.reader-content aside{border-left:1px solid #d3d9c9;padding-left:20px;font-size:12px}.reader-person{font-family:var(--serif);font-size:24px}.reader-content aside p{font-family:var(--serif);font-size:13px;margin:15px 0 22px}.record-line{height:1px;background:#d3d9c9;margin-top:13px}.record-line.short{width:60%}.desktop-foot{height:14px;position:absolute;bottom:-16px;left:-16px;right:-16px;border:1px solid #a5b098;background:#e4e8da;border-radius:0 0 9px 9px}.reader-phone{width:218px;flex-shrink:0;border:2px solid #64785e;position:relative;border-radius:26px;background:#faf8f0;padding:30px 10px 12px;box-shadow:0 14px 25px #43523310;transform:rotate(3deg)}.phone-speaker{position:absolute;top:12px;left:calc(50% - 24px);width:48px;height:4px;background:#6d7e64;border-radius:3px}.phone-title{text-align:center;border-bottom:1px solid #d3d9c9;padding:2px 0 10px;font-family:var(--serif);font-size:16px}.phone-screen{height:251px;padding:12px 3px}.phone-screen>div{height:100%}.phone-screen svg{width:100%;height:100%}.phone-screen svg text{font-size:17px}.phone-navigation{display:flex;gap:6px;border-top:1px solid #d3d9c9;padding-top:7px}.phone-navigation button{min-height:44px;flex:1;font-size:12px;border-radius:4px}.phone-navigation button[aria-pressed=true]{color:var(--red);background:#efeadc}.phone-biography{padding:15px;font-family:var(--serif)}.phone-biography>span{font-size:11px;color:var(--muted)}.phone-biography h3{font-size:26px;margin:8px 0 15px}.phone-biography p{font-size:13px}.phone-biography .phone-map-tag{display:block;padding:5px;margin-top:22px;border:1px solid #d1dac8;text-align:center;font-size:12px;color:var(--red)}.reading-display>.art-caption{position:absolute;bottom:5px;left:0;right:0}.navigation-feature{border-top:1px solid var(--line);margin-top:40px;padding-top:55px;display:grid;grid-template-columns:1fr 1.2fr;gap:70px;align-items:center}.navigation-feature h3{font-size:31px;margin-bottom:18px}.navigation-feature p:not(.eyebrow){font-size:16px;color:var(--muted)}.navigation-feature ol{padding-left:22px;font-size:14px;line-height:2.3;color:var(--muted)}.map-illustration{position:relative;background:#e9eee3;border:1px solid #c2ceb7;border-radius:6px;overflow:hidden;min-width:0}.map-illustration svg{width:100%;display:block;min-height:250px}.map-contour{stroke:#a3b6934d;stroke-width:1}.map-river{stroke:#a9c6b64d;stroke-width:22;fill:none}.map-route{stroke:var(--red);stroke-width:2;stroke-dasharray:6 8}.map-illustration circle{fill:#f7f4ed;stroke:var(--red);stroke-width:2}.map-pin{fill:var(--red);stroke:none}.map-illustration .art-caption{position:absolute;right:15px;bottom:12px;font-size:11px}
.learn-section{background:#e6ebe0}.lesson-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.lesson-card{position:relative;border:1px solid #c2cdb7;background:#f8f6edb8;border-radius:7px;padding:28px 30px;display:flex;flex-direction:column;align-items:flex-start;transition:transform .3s,box-shadow .3s,border-color .3s}.lesson-card:hover{transform:translateY(-6px);box-shadow:0 20px 35px #405c3c0c;border-color:#8d9f80}.lesson-index{font:14px Georgia,serif;color:#7c8f71;letter-spacing:.1em}.lesson-card h3{font-size:28px;margin:18px 0 12px}.lesson-card>p{font-size:16px;color:var(--muted);margin-bottom:22px;min-height:60px}.lesson-link{margin-top:auto;min-height:48px;display:flex;justify-content:space-between;width:100%;align-items:center;color:var(--red);font-size:16px;border-top:1px solid #d1d9c6;padding-top:15px}.lesson-link svg{width:25px;height:25px}.lesson-card small{font-size:12px;color:var(--muted);margin-top:12px}.lesson-card-art{height:94px;width:100%;display:grid;place-items:center;margin-top:18px}.lesson-card-art>svg{width:180px;height:90px;stroke:#738968;stroke-width:1}.lesson-card-art rect{fill:#f8f5e9}.add-card-art{display:grid;grid-template-columns:1fr 46px 1fr;grid-template-rows:22px 48px 22px;gap:0;text-align:center;max-width:180px;align-self:center;font:22px var(--serif);color:#7d8e73}.add-card-art span:nth-child(1){grid-column:2;grid-row:1}.add-card-art span:nth-child(2){grid-column:1;grid-row:2}.add-card-art span:nth-child(3){grid-column:2;grid-row:2;border:1px solid #a5b298;border-radius:5px;background:#faf7eb;width:40px;min-height:44px;padding:8px;font-size:18px;color:var(--ink)}.add-card-art span:nth-child(4){grid-column:3;grid-row:2}.add-card-art span:nth-child(5){grid-column:2;grid-row:3}.details-card-art>div{width:100px;height:90px;padding:10px 12px;border:1px solid #aebc9e;background:#faf7eb;transform:rotate(-6deg)}.details-card-art b{font-size:11px;font-weight:400;display:block;text-align:center;color:#738968}.details-card-art i{display:block;margin-top:11px;height:1px;background:#b5c3a6}
.access-section{display:grid;grid-template-columns:1fr 1fr;gap:80px}.access-card{position:relative;padding:8px 0 0;scroll-margin-top:calc(var(--header) + 35px)}.access-card+.access-card{border-left:1px solid var(--line);padding-left:70px}.access-card h2{font-size:38px;margin-bottom:20px}.access-card>p:not(.eyebrow){font-size:16px;color:var(--muted);max-width:440px}.access-icon{position:absolute;top:5px;right:12px;width:33px;height:33px;stroke:#7c8e70;stroke-width:1}.contact-mark{position:absolute;right:12px;top:2px;font:32px var(--serif);color:#829674}.coming-soon{display:inline-block;margin:24px 20px 0 0;padding:10px 18px;border:1px solid #b1bfa2;border-radius:4px;color:#627258;font-size:16px;line-height:1.7}.access-card>.text-link{margin-top:18px;font-size:14px}.heritage{position:relative;min-height:330px;padding:80px 0 90px;overflow:hidden;background:#f4f0e7;isolation:isolate}.heritage img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 69%;opacity:.4;z-index:-3}.heritage-paper{position:absolute;inset:0;background:linear-gradient(90deg,#f7f4ede8,#f7f4ed7a);z-index:-2}.heritage h2{font-size:42px;letter-spacing:.12em}.heritage-values{display:flex;gap:25px;margin-top:25px;font-family:var(--serif);font-size:18px;color:#5b6b58;flex-wrap:wrap}.heritage-values span+span:before{content:"";width:1px;height:13px;display:inline-block;margin-right:25px;background:#9ca98e80}.site-footer{border-top:1px solid var(--line);padding:26px 0;background:var(--paper)}.site-footer>.wrap{display:flex;justify-content:space-between;gap:25px;align-items:center}.site-footer .brand-main{font-size:24px}.site-footer .brand-sub{font-size:11px}.site-footer p,.site-footer .text-link{font-size:13px;color:var(--muted)}.floating-guide{position:fixed;left:20px;bottom:24px;z-index:40;display:flex;gap:9px;align-items:center;padding:12px 17px;background:#f8f6eeeb;border:1px solid #a5b299;box-shadow:0 5px 18px #293f3610;border-radius:5px;min-height:48px;font-size:14px;backdrop-filter:blur(12px)}.floating-guide svg{width:19px;height:19px}.floating-guide:hover{background:white;color:var(--red)}.noscript-note{background:#fff7de;padding:25px;text-align:center;font-size:15px}
.lesson-view{padding-top:calc(var(--header) + 35px);padding-bottom:65px;min-height:100svh}.back-to-lessons{font-size:14px;margin-bottom:20px}.lesson-heading{display:flex;justify-content:space-between;align-items:center;gap:25px}.lesson-heading .eyebrow{margin-bottom:10px;font-size:12px}.lesson-heading :is(h1,h2:where([data-page-heading])){font-size:42px;margin:0 0 14px}.lesson-heading p:not(.eyebrow){font-size:16px;color:var(--muted)}.lesson-chapters{display:flex;gap:20px;margin:28px 0 15px;border-bottom:1px solid var(--line)}.lesson-chapters a{font-size:16px;min-height:49px;padding:8px 4px;border-bottom:2px solid transparent}.lesson-chapters a[aria-current]{color:var(--red);border-color:var(--red)}.lesson-mobile-note{font-size:13px;color:var(--muted);margin-bottom:18px}.lesson-player{position:relative;border:1px solid #acbaa0;border-radius:8px;overflow:hidden;background:#EEECE7;box-shadow:0 15px 35px #293f360d}.lesson-stage{position:relative;width:100%;height:clamp(520px,calc(100svh - 180px),760px);overflow:hidden;background:#EEECE7}.lesson-frame{position:absolute;left:0;top:0;border:0;max-width:none;transform-origin:0 0;display:block;background:#EEECE7}.lesson-loading,.lesson-error{position:absolute;inset:0;z-index:10;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:20px;background:#EEECE7;color:#53664e;font-size:17px;padding:20px;text-align:center}.lesson-error p{font-size:16px}.fullscreen-close{display:none;position:absolute;right:18px;top:10px;z-index:90;padding:8px 15px;min-height:44px;background:#f8f6ed;color:var(--ink);border:1px solid #829774;border-radius:5px;font-size:15px}.lesson-player:fullscreen{height:100vh;width:100vw;border:0;border-radius:0;padding-top:58px}.lesson-player:fullscreen .lesson-stage{height:calc(100vh - 58px)}.lesson-player:fullscreen .fullscreen-close{display:block}.lesson-footer{display:flex;justify-content:space-between;gap:20px;margin-top:22px}.lesson-footer a{font-size:15px}body.lesson-open .floating-guide{display:none}body.lesson-open .site-footer{border-top:0}
@keyframes scroll-line{0%{transform:translateY(-100%)}60%,100%{transform:translateY(100%)}}.enhanced .reveal{transition:opacity .75s var(--ease),transform .75s var(--ease)}.enhanced .reveal.will-reveal{opacity:0;transform:translateY(18px)}.enhanced .reveal.is-visible{opacity:1;transform:none}
@media(min-width:1800px){.wrap{width:min(1320px,calc(100% - 160px))}.hero-inner{padding-top:140px}.hero :is(h1,h2:where([data-page-heading])){font-size:82px}.hero-description{font-size:24px}.scroll-invitation{left:calc((100% - 1320px)/2)}.showcase-story{padding:45px}}
@media(max-width:1200px){.header-inner{padding:0 32px;gap:18px}.brand-main{font-size:25px}.brand-sub{font-size:12px;letter-spacing:.06em}.main-nav{gap:24px}.main-nav a{font-size:15px}.wrap{width:calc(100% - 80px)}.hero{min-height:730px;height:calc(100svh - var(--header))}.hero :is(h1,h2:where([data-page-heading])){font-size:58px}.hero-art{object-position:63% 65%}.hero-inner{padding-top:105px}.intro{column-gap:50px}.section-top{gap:40px}.showcase{grid-template-columns:1.5fr 1fr}.showcase-story{padding:30px 24px}.showcase-story h3{font-size:26px}.format-gallery{grid-template-columns:275px minmax(0,1fr);gap:28px}.book-display{padding-left:25px}.book-cover{width:130px;height:305px;left:0}.book-label{left:35px}.book-spread{min-height:320px}.collection-flow{gap:25px}.reader-desktop{width:580px}.reading-display{gap:28px;padding-left:20px;padding-right:20px}.reader-content{grid-template-columns:1fr 140px;gap:15px}.floating-guide{left:12px;bottom:16px;padding:10px 13px;font-size:13px}.access-section{gap:50px}.access-card+.access-card{padding-left:45px}}
@media(max-width:980px){:root{--header:130px}.header-inner{height:var(--header);display:grid;grid-template-columns:1fr auto;grid-template-rows:68px 61px;gap:0;padding:0 28px}.brand{grid-column:1;grid-row:1}.languages{grid-column:2;grid-row:1}.main-nav{grid-column:1/-1;grid-row:2;justify-content:space-between;border-top:1px solid #d9ddd3;margin-top:0;gap:16px}.main-nav a{min-height:57px;font-size:16px}.wrap{width:calc(100% - 64px)}.hero :is(h1,h2:where([data-page-heading])){font-size:52px}.hero{min-height:690px}.hero-description{font-size:19px}.hero-note{font-size:16px;max-width:430px}.hero-paper{background:linear-gradient(90deg,#f7f4edde,#f7f4ed9c 40%,#f7f4ed10)}.hero-side-note{display:none}.intro{gap:40px}.intro-copy{padding-top:30px}.intro-copy p{font-size:16px}.section-pad{padding-top:86px;padding-bottom:86px}.section-top{align-items:flex-start;flex-direction:column;gap:20px;margin-bottom:35px}.section-summary{max-width:620px}.showcase{grid-template-columns:1fr}.showcase-canvas{padding:22px 28px 0}.graph-scene{max-height:440px}.showcase-story{border-left:0;border-top:1px solid var(--line);display:grid;grid-template-columns:1fr 1fr;gap:0 30px;padding:30px}.showcase-story>p,.showcase-story>h3,.showcase-story>.text-link{grid-column:1}.showcase-story .direction-controls,.showcase-story .reconnect-steps{grid-column:2;grid-row:1/4}.showcase-story .demo-controls{grid-column:2;grid-row:4}.showcase-story .demo-status{grid-column:1/3;min-height:30px}.showcase-story .demo-progress{grid-column:1/3}.collection-flow{grid-template-columns:1fr 1fr;gap:35px 50px}.flow-art{max-width:230px}.format-gallery{grid-template-columns:230px minmax(0,1fr);gap:30px}.format-picker strong{font-size:18px}.format-picker button{gap:12px;min-height:72px}.book-cover{height:280px;top:45px}.book-display{padding-left:25px;min-height:365px}.book-spread{min-height:320px}.book-page{padding:15px 10px}.book-diagram{height:250px}.binding-row{grid-template-columns:1fr 1.2fr;gap:35px}.privacy-inner{gap:30px}.privacy-inner h2{font-size:34px}.archive-device{width:280px;height:215px}.archive-envelope{right:-10px;width:95px;height:104px;font-size:12px}.reader-desktop{width:70%}.reader-content{grid-template-columns:1fr;padding:20px}.reader-content aside{display:none}.reader-phone{width:200px}.navigation-feature{gap:35px}.lesson-cards{gap:15px}.lesson-card{padding:23px}.lesson-card h3{font-size:25px}.lesson-card>p{font-size:15px}.site-footer>.wrap{flex-wrap:wrap}.site-footer .brand{line-height:1.8}.site-footer .brand-main{font-size:23px}.site-footer .brand-sub{font-size:10px}.site-footer p{margin-right:auto}}
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.collection-flow p,.lesson-card>p{font-size:16px}.mobile-title-break{display:none}.mouse-indicator>.left-mouse-fill{fill:#a6614c;stroke:none}
@media(max-width:700px){.hero-note,.collection-flow p,.lesson-card>p,.access-card>p:not(.eyebrow),.showcase-story>p:not(.eyebrow),.lesson-heading p:not(.eyebrow){font-size:16px}.showcase-story .demo-status{font-size:14px!important}.mobile-title-break{display:block}.graph-scene .scene-node text{font-size:32px}.graph-scene .scene-node .node-sub{font-size:20px}.privacy-inner{grid-template-columns:minmax(0,1fr)}.archive-device{width:min(300px,100%)}}
@media(max-width:360px){.collection-flow{grid-template-columns:1fr}.flow-art{max-width:260px;width:100%;margin-left:auto;margin-right:auto}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}.enhanced .reveal.will-reveal{opacity:1;transform:none}}
@media(forced-colors:active){.hero-art,.heritage img,.archive-ring{display:none}.hero-paper,.heritage-paper{display:none}.hero,.craft-section,.privacy-section,.learn-section{background:Canvas;color:CanvasText}.primary{background:ButtonFace;color:ButtonText;border:1px solid ButtonText}.main-nav a[aria-current],.showcase-tabs button[aria-selected=true],.format-picker button[aria-selected=true]{text-decoration:underline}.scene-node rect{fill:Canvas;stroke:CanvasText}.scene-node text,.scene-labels text{fill:CanvasText}.gesture-cursor>path{fill:CanvasText}}
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.site-icp{margin:0;padding:12px 20px 20px;text-align:center;background:var(--paper);font-size:13px;color:var(--muted)}.site-icp a{color:inherit;text-decoration:none}.site-icp a:hover{text-decoration:underline}.site-icp a:focus-visible{outline:2px solid currentColor;outline-offset:4px}