@charset "UTF-8";
:root{color-scheme:dark;--bg:#0c0d0f;--panel:#121416;--text:#f2f2f3;--muted:#909297;--line:#26282c;--blue:#8ab0ff;--font:Inter,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);-webkit-font-smoothing:antialiased}body.dialog-open{overflow:hidden}button,a,summary{-webkit-tap-highlight-color:transparent}button{font:inherit}a{color:inherit;text-decoration:none}button{cursor:pointer}svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}button:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--blue);outline-offset:6px}.icon-sprite{position:absolute;width:0;height:0;overflow:hidden}.wrap{width:min(1160px,calc(100% - 80px));margin-inline:auto}.skip-link{position:fixed;left:16px;top:-80px;background:white;color:black;padding:12px;z-index:100}.skip-link:focus{top:12px}.site-header{height:84px;position:relative;z-index:5;border-bottom:1px solid #ffffff05}.header-inner{height:100%;display:flex;align-items:center;justify-content:space-between}.brand{display:inline-flex;align-items:center;font-size:21px;font-weight:650;letter-spacing:-.8px}.brand-light{font-weight:400;color:#b2b4bb}.brand-icon{display:inline-flex;align-items:center;margin-right:9px;color:var(--blue)}.brand-icon svg{width:25px;height:25px;fill:currentColor;stroke:var(--bg);stroke-width:1}.site-header nav{display:flex;gap:32px;margin-left:26px;font-size:13px;color:#a3a5a9}.site-header a{transition:color .2s}.site-header a:hover{color:white}.nav-download{display:flex;gap:12px;align-items:center;border:1px solid #303238;border-radius:7px;background:#ffffff03;padding:10px 15px;font-size:12px;color:#d8d9dc}.nav-download svg{width:15px;height:15px}.hero{position:relative;overflow:hidden;text-align:center;padding:78px 0 77px}.hero-grid{position:absolute;inset:0;background-image:linear-gradient(#ffffff04 1px,transparent 1px),linear-gradient(90deg,#ffffff04 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.2s,box-shadow .2s}.button-light{background:#f2f3f5;color:#17191e;box-shadow:0 2px 5px #0002}.button-light:hover{background:#fff;transform:translateY(-2px);box-shadow:0 5px 20px #ffffff12}.button svg{width:17px;height:17px}.button .button-arrow{width:15px;height:15px;margin-left:8px;color:#63666d}.text-link{color:#b5b7be;font-size:13px;display:inline-flex;align-items:center;gap:12px}.text-link:hover{color:#fff}.text-link>span{font-size:17px;color:#6d717c}.hero-principles{display:flex;align-items:center;justify-content:center;gap:15px;font-size:11px;color:#70747e;letter-spacing:.5px}.hero-principles i{height:2px;width:2px;background:#626672;border-radius:50%}.floating-tile{position:absolute;display:flex;align-items:center;justify-content:center;border:1px solid #ffffff0d;border-radius:17px;background:linear-gradient(135deg,#23262c,#131519);box-shadow:inset 0 1px 1px #ffffff06,0 12px 35px #0004;color:#c0c7d5}.tile-epub{left:calc(50% - 452px);top:94px;width:83px;height:89px;transform:rotate(-12deg);flex-direction:column;gap:7px}.tile-epub svg{width:31px;height:31px;color:var(--blue)}.tile-epub>span{font-size:9px;letter-spacing:1.8px;color:#8795b2}.tile-note{right:calc(50% - 453px);top:145px;width:76px;height:80px;transform:rotate(12deg)}.tile-note svg{width:35px;height:35px;color:#c3bca4}.tile-md{left:calc(50% - 407px);top:374px;width:64px;height:66px;transform:rotate(8deg);font-size:27px;font-weight:750}.md-arrow{font-size:25px;vertical-align:2px}.tile-highlight{right:calc(50% - 386px);top:386px;width:66px;height:67px;transform:rotate(-9deg);flex-direction:column;font-family:Georgia,serif;font-size:26px}.tile-highlight i{width:31px;height:4px;margin-top:1px;background:#d4bb63}.workspace{position:relative}.preview-topline{display:flex;align-items:center;justify-content:space-between;color:#6f737e;font-size:9px;letter-spacing:1.7px;margin:0 3px 12px}.preview-topline>span:first-child{display:flex;gap:9px;align-items:center}.preview-topline .status-dot{width:4px;height:4px}.app-preview{display:block;position:relative;isolation:isolate;width:100%;padding:7px;background:#191c22;border:1px solid #363c49;border-radius:12px;box-shadow:0 -10px 80px #4b71c00b,0 35px 80px #0003;overflow:hidden}.app-preview img{width:100%;height:auto;display:block;border-radius:5px;background:white}.expand-label{position:absolute;bottom:20px;right:20px;display:flex;align-items:center;gap:7px;font-size:11px;background:#171b24e6;color:#eee;border:1px solid #ffffff20;padding:9px 12px;border-radius:6px;opacity:0;transform:translateY(4px);transition:.2s}.expand-label svg{width:14px;height:14px}.app-preview:hover .expand-label,.app-preview:focus-visible .expand-label{opacity:1;transform:none}.preview-caption{display:flex;justify-content:space-between;font-size:10px;color:#6e727b;margin-top:17px;letter-spacing:.3px}.intro{text-align:center;padding:125px 0 86px}.section-kicker{color:#717783;font-size:10px;font-weight:500;letter-spacing:1.9px}.intro h2{font-size:42px;font-weight:550;letter-spacing:-1.8px;margin:22px 0 18px}.intro>p,.local-section>p{color:var(--muted);font-size:14px;line-height:2;margin:0}.principle-row{display:flex;justify-content:center;gap:0;margin-top:37px}.principle-row>div{display:flex;align-items:center;gap:10px;padding:0 29px;font-size:12px;color:#b5b7bc;border-right:1px solid #2c2e32}.principle-row>div:last-child{border:0}.principle-row svg{width:17px;height:17px;color:#7d879b}.feature-section{display:grid;grid-template-columns:.87fr 1.13fr;gap:85px;align-items:center;padding:66px 0 92px}.feature-number{display:block;color:#6c84af;font-size:10px;letter-spacing:1.5px;margin-bottom:22px}.feature-copy h2,.simple-copy h2{font-size:38px;line-height:1.47;letter-spacing:-1px;font-weight:550;margin:0 0 21px}.feature-copy>p,.simple-copy>p{font-size:13px;color:var(--muted);line-height:2.05;margin:0 0 25px;max-width:370px}.check-list{list-style:none;margin:26px 0 32px;padding:0;display:grid;gap:13px}.check-list li{display:flex;gap:10px;align-items:center;font-size:12px;color:#b1b4bc}.check-list svg{width:15px;height:15px;color:#8e9db8}.visual-panel{background:linear-gradient(130deg,#17191d,#101214);border:1px solid #2a2d34;border-radius:12px;position:relative;min-width:0;box-shadow:0 15px 50px #0002}.demo-topbar{height:49px;display:flex;align-items:center;justify-content:space-between;padding:0 21px;border-bottom:1px solid #ffffff0a;font-size:9px;color:#646a77;letter-spacing:.9px}.demo-topbar>span:first-child{display:flex;align-items:center;gap:8px;font-size:11px;color:#9298a5;letter-spacing:0}.demo-topbar svg{width:14px;height:14px}.demo-page{display:grid;grid-template-columns:1fr 140px;gap:28px;padding:34px 28px 46px}.book-passage{font-family:Georgia,"Songti SC",SimSun,serif;font-size:12px;line-height:2.1;color:#b1b2b6}.book-chapter{font-family:var(--font);font-size:8px;letter-spacing:2px;color:#646c7a}.book-passage h3{font-size:17px;line-height:1.7;letter-spacing:.2px;font-weight:550;color:#e0e0e1;margin:11px 0 19px}.book-passage p{margin:0 0 17px}.book-passage mark{background:#d4bd5622;color:#d7c88f;padding:1px 0;border-bottom:1px solid #c9b56366}.margin-note{position:relative;padding-top:160px;font-size:11px;line-height:1.85;color:#b8c3d7}.note-label{font-size:9px;color:#7487aa}.margin-note p{margin:8px 0 12px}.note-meta{font-size:8px;color:#656e7e}.note-anchor{position:absolute;top:175px;left:-38px;width:24px;height:1px;background:#5c7399}.note-anchor:after{content:"";width:4px;height:4px;background:#8cace7;border-radius:50%;position:absolute;right:0;top:-1.5px}.passage-lines{display:grid;gap:12px;padding-top:1px}.passage-lines i{display:block;height:4px;background:#ffffff06;border-radius:1px}.passage-lines i:nth-child(2){width:91%}.passage-lines i:nth-child(3){width:68%}.demo-caption{display:block;position:absolute;bottom:-25px;left:0;right:0;text-align:center;color:#555c68;font-size:9px;letter-spacing:.4px}.export-section{grid-template-columns:1.13fr .87fr;padding-top:90px;padding-bottom:107px}.export-switch{display:flex;gap:4px;padding:5px;margin:22px 24px 0;background:#0c0e11;border:1px solid #24272d;border-radius:7px}.export-switch button{flex:1;border:0;background:transparent;color:#6e7581;font-size:11px;min-height:33px;border-radius:4px;transition:.2s}.export-switch button[aria-selected=true]{background:#262b34;color:#e5e9f2;box-shadow:0 1px 4px #0005}.export-panel{padding:24px 25px 0;min-height:332px}.export-panel[hidden]{display:none}.file-tree{font-family:Consolas,monospace;font-size:11px;color:#b4bac7}.folder-row{display:flex;gap:9px;align-items:center;margin-bottom:14px;color:#d7dbe3}.folder-symbol{font-size:23px;color:#b3c5e5;line-height:1}.file-tag{margin-left:auto;font-family:var(--font);font-size:7px;letter-spacing:1px;color:#596372}.file-row{display:flex;align-items:center;gap:8px;height:29px;padding-left:3px;white-space:nowrap}.tree-line{color:#454d5c;padding-right:6px}.md-file{font-weight:bold;font-size:10px;letter-spacing:-1px;color:#8b9bbb}.file-status{margin-left:auto;font-size:8px;color:#65758e;font-family:var(--font)}.code-preview{margin:21px 0 22px;border:1px solid #252a33;border-radius:6px;background:#0c0f14;padding:15px 17px;font-family:Consolas,"Microsoft YaHei",monospace;font-size:10px;line-height:2;color:#a0a8b8;white-space:nowrap;overflow:auto}.code-muted{color:#687990}.code-blue{color:#809ed4}.code-note{color:#657b63}.format-foot{display:flex;gap:8px;align-items:center;border-top:1px solid #262a32;padding:15px 0;color:#6f7a8d;font-size:9px}.format-foot .status-dot{height:4px;width:4px}.format-foot>span:last-child{margin-left:auto;font-family:Consolas,monospace;color:#586478}.export-description{display:flex;gap:16px;margin-top:25px}.format-badge{display:flex;align-items:center;justify-content:center;border:1px solid #354259;background:#172132;border-radius:7px;width:42px;height:42px;flex-shrink:0;font-family:Consolas,monospace;color:#9bb8ed;font-size:12px}.backup-badge{color:#b5b5bd;background:#1d1e22;border-color:#32333c;font-size:10px}.export-description h3{font-size:13px;font-weight:500;margin:1px 0 8px;color:#d4d7de}.export-description p{font-size:11px;line-height:1.9;color:#828895;margin:0}.backup-panel{text-align:center;padding-top:23px}.backup-file{display:grid;justify-items:center;gap:9px}.backup-file svg{width:38px;height:38px;color:#9ab5e2;margin-bottom:4px}.backup-file strong{font-family:Consolas,"Microsoft YaHei",monospace;font-size:15px;font-weight:400;color:#d2ddf1}.backup-file>span{color:#66728a;font-size:9px}.backup-contents{display:flex;justify-content:center;gap:6px;margin:21px 0}.backup-contents>span{font-size:9px;color:#959eaf;background:#242a34;padding:5px 8px;border-radius:4px}.backup-panel>p{font-size:11px;line-height:1.9;color:#7c8697;margin:0 0 26px}.simple-section{display:grid;grid-template-columns:.87fr 1.13fr;align-items:center;gap:85px;padding:77px 0 110px;border-bottom:1px solid #23262b}.simple-copy>p{max-width:none;margin:0}.toolbar-demo{padding:28px 25px 0}.toolbar-brand{display:flex;align-items:center;gap:9px;font-size:13px;font-weight:600;color:#c8cdd8}.toolbar-brand svg{color:var(--blue);width:18px;height:18px}.toolbar-items{display:flex;justify-content:space-between;padding:32px 10px 35px}.toolbar-items>div{display:flex;flex-direction:column;align-items:center;gap:13px;font-size:10px;color:#8b93a3}.toolbar-icon{display:flex;align-items:center;justify-content:center;height:45px;width:45px;border-radius:9px;border:1px solid #363d4a;background:linear-gradient(145deg,#282e39,#171b23);font-size:23px;line-height:1;color:#b6c5e0;font-family:var(--font);box-shadow:inset 0 1px 0 #ffffff08}.toolbar-icon svg{height:22px;width:22px}.toolbar-bottom{display:flex;justify-content:space-between;gap:12px;border-top:1px solid #292d34;padding:17px 0;font-size:9px;color:#687184}.toolbar-bottom>span:last-child{font-size:7px;letter-spacing:1px}.local-section{text-align:center;padding:105px 0 103px}.local-symbol{display:flex;justify-content:center;margin-bottom:27px;color:#acb9d0}.local-symbol svg{width:34px;height:34px}.local-section h2{font-size:39px;font-weight:550;line-height:1.5;letter-spacing:-1px;margin:20px 0}.local-tags{display:flex;justify-content:center;gap:31px;margin-top:28px}.local-tags>span{display:flex;align-items:center;gap:7px;color:#a5acb9;font-size:11px}.local-tags svg{width:13px;height:13px;color:#7b8ca9}.faq-section{display:grid;grid-template-columns:.85fr 1.15fr;gap:85px;border-top:1px solid #23262b;padding:85px 0 98px}.faq-section h2{font-size:31px;line-height:1.55;letter-spacing:-.5px;font-weight:500;margin:23px 0 0}.faq-list{margin-top:-13px}.faq-list details{border-bottom:1px solid #26292e}.faq-list summary{display:flex;justify-content:space-between;align-items:center;gap:15px;cursor:pointer;list-style:none;padding:23px 0;font-size:13px;color:#d4d7dd;line-height:1.5}.faq-list summary::-webkit-details-marker{display:none}.faq-plus{position:relative;width:12px;height:12px;flex-shrink:0}.faq-plus:before,.faq-plus:after{content:"";display:block;position:absolute;width:10px;height:1px;top:5px;background:#737e91}.faq-plus:after{transform:rotate(90deg);transition:transform .2s}details[open] .faq-plus:after{transform:rotate(0)}.faq-list p{font-size:12px;color:#858d9b;line-height:2;margin:0;padding:0 24px 23px 0}.download-section{position:relative;text-align:center;overflow:hidden;padding:76px 0 83px;background:radial-gradient(ellipse at 50% 110%,#24334f38,transparent 65%);border-block:1px solid #26292f}.download-section h2{font-size:47px;letter-spacing:-1.8px;font-weight:550;line-height:1.45;margin:22px 0 18px}.download-section p{color:#858e9e;font-size:13px;margin:0 0 28px;letter-spacing:.3px}.download-note{display:block;font-size:9px;color:#606b7f;margin-top:19px;letter-spacing:.6px}.site-footer{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-block:35px}.site-footer>.brand{font-size:17px}.site-footer>.brand .brand-icon svg{width:21px;height:21px}.site-footer>span{font-size:10px;color:#646d7b}.site-footer>div{display:flex;align-items:center;gap:20px;font-size:10px;color:#767f8e}.site-footer>div>span{color:#505a6b}.site-footer a:hover{color:#ddd}dialog{margin:auto;color:var(--text);background:#14171d;border:1px solid #353d4c;border-radius:15px;padding:43px;width:min(470px,calc(100% - 40px));box-shadow:0 30px 100px #0009}dialog::backdrop{background:#05070bd9;backdrop-filter:blur(9px)}.dialog-close{position:absolute;right:15px;top:15px;width:29px;height:29px;display:grid;place-items:center;border:0;border-radius:5px;color:#828c9e;background:#ffffff05}.dialog-close svg{width:17px;height:17px}.dialog-close:hover{color:white;background:#ffffff10}.dialog-icon{display:flex;color:#afc6ee;margin-bottom:28px}.dialog-icon svg{height:30px;width:30px}dialog h2{font-weight:500;letter-spacing:-.5px;font-size:24px;line-height:1.5;margin:17px 0}dialog>p{font-size:13px;line-height:1.9;color:#929daf}.dialog-info{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:26px 0;border-block:1px solid #2a303c;padding:23px 0;font-size:11px}.dialog-info>span{color:#768299}.dialog-info strong{text-align:right;font-weight:400;color:#bcc6d8}.dialog-done{width:100%;margin-top:5px}#preview-dialog{width:96vw;max-width:1800px;padding:5px;border-radius:9px;overflow:visible;background:#fff}#preview-dialog>img{display:block;width:100%;height:auto;max-height:85vh;object-fit:contain}#preview-dialog>.dialog-close{top:-39px;right:0;background:#282e3b;color:#fff}
@media(min-width:1500px){.hero{padding-top:92px;padding-bottom:88px}.hero h1{font-size:94px}.wrap{width:min(1200px,calc(100% - 100px))}}
@media(max-width:1000px){.wrap{width:calc(100% - 48px)}.hero{padding-top:65px}.hero h1{font-size:74px}.tile-epub{left:7%;top:94px;width:61px;height:68px}.tile-note{right:7%;top:168px;width:57px;height:60px}.tile-md{left:10%;top:373px;width:53px;height:55px}.tile-highlight{right:11%;top:402px;width:49px;height:52px;font-size:22px}.feature-section,.simple-section,.faq-section{gap:40px}.feature-copy h2,.simple-copy h2{font-size:31px}.demo-page{grid-template-columns:1fr 110px;padding:25px 20px 34px;gap:20px}.book-passage{font-size:11px}.book-passage h3{font-size:15px}.margin-note{font-size:10px;padding-top:160px}.note-anchor{left:-24px;width:15px}.file-status{display:none}.export-panel{padding-inline:18px}.export-switch{margin-inline:18px}.principle-row>div{padding:0 20px}.site-footer>span{display:none}}
@media(max-width:700px){html{scroll-padding-top:25px}.wrap{width:calc(100% - 40px)}.site-header{height:72px}.brand{font-size:19px}.site-header nav{display:none}.nav-download{font-size:11px;padding:9px 11px;gap:8px}.hero{padding:64px 0 54px}.hero-eyebrow{font-size:8px;letter-spacing:1.25px}.hero h1{font-size:62px;letter-spacing:-3.7px;margin:28px 0 24px;line-height:1.28}.hero-description{font-size:13px;line-height:1.9;letter-spacing:0}.hero-actions{flex-direction:column;gap:22px;margin-top:28px;margin-bottom:24px}.hero-actions .button{min-height:47px}.hero-actions .text-link{font-size:11px}.hero-principles{font-size:10px;gap:12px}.floating-tile{opacity:.45;z-index:0}.tile-epub{left:-20px;top:100px;width:49px;height:55px}.tile-epub svg{width:22px;height:22px}.tile-epub>span{font-size:6px}.tile-note{right:-19px;top:185px;width:49px;height:53px}.tile-note svg{width:26px;height:26px}.tile-md{left:-11px;top:377px;width:43px;height:46px;font-size:20px}.md-arrow{font-size:20px}.tile-highlight{right:-10px;top:401px;width:43px;height:45px;font-size:20px}.tile-highlight i{width:24px;height:3px}.preview-topline{font-size:7px;letter-spacing:.6px}.preview-topline>span:last-child{display:none}.app-preview{padding:4px;border-radius:7px}.app-preview img{border-radius:2px}.expand-label{display:none}.preview-caption{font-size:9px;line-height:1.7;gap:10px;margin-top:12px}.preview-caption>span:last-child{max-width:95px;text-align:right;flex-shrink:0}.intro{padding:79px 0 27px}.section-kicker{font-size:8px;letter-spacing:1.3px}.intro h2{font-size:32px;letter-spacing:-1px;margin-top:20px}.intro>p,.local-section>p{font-size:12px;line-height:2}.principle-row{margin-top:27px}.principle-row>div{gap:6px;font-size:9px;padding:0 11px}.principle-row svg{width:13px;height:13px}.feature-section,.simple-section{grid-template-columns:1fr;gap:31px;padding:52px 0 47px}.feature-copy h2,.simple-copy h2{font-size:32px;line-height:1.45;margin-bottom:18px}.feature-number{font-size:9px;margin-bottom:17px}.feature-copy>p,.simple-copy>p{font-size:12px;max-width:none}.check-list{gap:11px;margin:21px 0 22px}.check-list li{font-size:11px}.feature-copy .text-link{font-size:11px}.visual-panel{border-radius:9px}.demo-page{grid-template-columns:1fr 108px;padding:26px 22px 29px;gap:24px}.book-passage{font-size:11px}.book-passage h3{font-size:15px}.margin-note{padding-top:140px;font-size:10px}.note-anchor{top:154px;left:-27px;width:17px}.notes-demo{min-height:375px}.demo-topbar{padding-inline:19px}.demo-caption{font-size:8px;bottom:-22px}.export-section{padding-top:65px;padding-bottom:56px}.export-section .feature-copy{grid-row:1}.export-section .export-demo{grid-row:2}.export-description p{font-size:11px}.export-panel{min-height:324px}.export-description{margin-top:22px}.file-row{font-size:10px}.code-preview{font-size:9px}.simple-section{padding-top:62px;padding-bottom:65px;gap:28px}.toolbar-demo{padding:24px 21px 0}.toolbar-items{padding:28px 2px}.toolbar-bottom{font-size:8px}.toolbar-bottom>span:last-child{font-size:6px}.local-section{padding:70px 0 66px}.local-section h2{font-size:31px;letter-spacing:-1px}.local-tags{gap:24px}.local-tags>span{font-size:10px}.faq-section{grid-template-columns:1fr;gap:33px;padding:58px 0 66px}.faq-section h2{font-size:29px;margin-top:17px}.faq-list summary{font-size:12px;padding:21px 0}.faq-list p{font-size:11px}.download-section{padding:58px 0 64px}.download-section h2{font-size:34px;letter-spacing:-1.1px;margin:22px 0 19px}.download-section p{font-size:11px}.site-footer{align-items:flex-start;padding-block:26px;gap:21px;flex-wrap:wrap}.site-footer>div{gap:15px;font-size:9px}.site-footer>.brand{font-size:16px}.site-footer>div>span{font-size:8px}dialog{padding:35px 26px}dialog h2{font-size:21px}dialog>p{font-size:12px}.dialog-info{font-size:10px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}