:root{--ink:#192c4a;--muted:#626f83;--blue:#345dea;--lavender:#6554cf;--line:#e2e7f0;--pale:#f4f7fc}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;color:var(--ink);background:#fff;font-family:"Avenir Next",Avenir,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #4568e8;outline-offset:5px}a,button,summary{-webkit-tap-highlight-color:transparent}.wrap{width:min(1180px,calc(100% - 96px));margin-inline:auto}.header{height:100px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;gap:11px;align-items:center;font-weight:750;font-size:21px;letter-spacing:-.6px}.brand img{border-radius:9px}nav{display:flex;align-items:center;gap:30px;font-size:14px;font-weight:600}nav button{border:0;background:none;color:var(--muted);cursor:pointer;padding:8px}.nav-download{padding:12px 19px;border:1px solid var(--line);border-radius:30px}.hero{min-height:690px;display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:20px}.hero-copy{padding-bottom:45px;position:relative;z-index:2}.platform{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:13px;font-weight:550}.platform>span:first-child{width:7px;height:7px;border-radius:50%;background:#5772cb}h1{font-size:clamp(54px,6.1vw,86px);font-weight:650;line-height:1.06;letter-spacing:-4.8px;margin:25px 0}p{line-height:1.75}.intro{max-width:440px;color:var(--muted);font-size:18px;margin-bottom:29px}.store-button{display:inline-flex;align-items:center;gap:10px;padding:10px 24px 10px 15px;background:var(--ink);color:#fff;border-radius:12px}.store-button svg{width:36px;height:39px}.store-button span{display:flex;flex-direction:column}.store-button small{font-size:10px;line-height:1.3}.store-button strong{font-size:24px;line-height:1.2;font-weight:550;letter-spacing:-.5px}.hero-note{font-size:12px;color:var(--muted);margin-top:15px}.hero-art{height:620px;position:relative;display:flex;align-items:center;justify-content:center}.orbit{position:absolute;border-radius:50%;border:1px solid #e4eafa;z-index:0}.orbit-one{width:550px;height:550px;background:#f5f7ff}.orbit-two{width:660px;height:660px;border-style:dashed}.phone{width:253px;position:relative;padding:7px;background:#242c40;border-radius:42px;transform:rotate(7deg);box-shadow:15px 35px 60px #28396329;border:2px solid #566077;z-index:2}.phone img{width:100%;display:block;border-radius:33px}.paper{position:absolute;background:#fff;border:1px solid #e6eaf3;box-shadow:0 18px 48px #273e7014;border-radius:9px;width:245px;height:320px;padding:30px;left:-12px;top:128px;transform:rotate(-12deg);z-index:1}.paper-tag{font-size:10px;background:#e9efff;color:var(--blue);padding:4px 7px;display:inline-block;border-radius:4px}.paper h3{font-family:Georgia,serif;font-size:25px;font-weight:400;line-height:1.25;margin-top:19px}.paper-line{height:4px;background:#e3e9f1;margin:12px 0;width:100%}.paper-line.short{width:70%}.highlight-line{display:block;height:13px;width:85%;background:#f5dd7980;margin-top:-5px}.floating-note{position:absolute;bottom:54px;right:-2px;display:flex;align-items:center;gap:10px;padding:17px 20px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:0 12px 36px #20385912;font-size:13px;z-index:3;transform:rotate(-4deg)}.check{color:#3e8064;background:#e8f4ee;width:24px;height:24px;text-align:center;line-height:24px;border-radius:50%}.benefits{display:flex;justify-content:space-between;gap:18px;border-block:1px solid var(--line);padding-block:27px;color:#62708a;font-size:14px}.benefits span:before{content:'✦';color:#7c8bb1;margin-right:12px}.feature-section{padding-top:110px}.section-top{display:flex;justify-content:space-between;align-items:end;gap:50px;margin-bottom:40px}h2{font-size:clamp(34px,4vw,49px);line-height:1.16;letter-spacing:-1.9px;font-weight:600;margin:0}.section-top p{max-width:345px;color:var(--muted);font-size:15px;margin:0 0 4px}.feature-grid{display:grid;grid-template-columns:1.13fr 1fr;gap:22px}.feature{padding:38px;border-radius:24px;overflow:hidden;position:relative;background:var(--pale)}.feature h3{font-size:24px;letter-spacing:-.8px;line-height:1.3;margin:20px 0 13px;font-weight:600}.feature>p{font-size:15px;color:var(--muted);max-width:420px;margin:0}.feature-icon{font-size:29px;line-height:1;font-family:Georgia,serif;color:var(--blue)}.caret{font-weight:200;color:#9aaeea}.reading{background:#edf3fd}.editing{background:#f1effa}.pages{background:#f5f7fa}.ocr{background:#edf5f2}.document-sample{background:white;margin:32px 0 -64px 8px;padding:30px 27px 55px;transform:rotate(-3deg);box-shadow:0 8px 25px #26416a0c;border-radius:4px}.sample-label{font-size:10px;color:#8893a5}.document-sample h4{font:26px Georgia,serif;color:#304364;margin:16px 0}.document-sample p{font:13px/2 Georgia,serif;color:#6d7586}mark{background:#f6e39a;padding:2px 0}.handwritten{color:#5e6bd0;font:italic 19px Georgia,serif;transform:rotate(-5deg);margin:22px 0}.edit-sample{margin-top:38px;background:#fff;padding:25px;border-radius:12px;box-shadow:0 8px 24px #38216909}.edit-label{font-size:11px;color:#8a839b}.edit-field{font-size:24px;line-height:1.7;letter-spacing:-.6px;margin:17px 0 23px}.edit-field span{background:#e6e0fa;border-bottom:2px solid #6d5cd1;padding:3px}.edit-toolbar{display:flex;gap:22px;align-items:center;border-top:1px solid #eeebf5;padding-top:16px;color:#60576c;font-size:13px}.edit-toolbar .saved{margin-left:auto;font-size:11px;color:#58836f}.mini-pages{display:flex;gap:12px;margin-top:28px;padding:10px 0 0 8px}.mini-pages span{width:65px;height:80px;background:#fff;border:1px solid #dde3ed;border-radius:4px;box-shadow:0 4px 9px #293c5b08;display:grid;place-items:center;color:#8d9bb5;font:21px Georgia,serif}.mini-pages span:nth-child(2){transform:translateY(-8px) rotate(-8deg);border-color:#9eafe8}.scan-sample{margin-top:36px;display:flex;justify-content:space-between;align-items:center;background:#ffffff8c;padding:26px 15px;font:25px Georgia,serif;color:#487367;border-radius:10px}.scan-corner{width:15px;height:28px;border-left:2px solid #73a294;border-block:2px solid #73a294}.scan-corner.end{transform:rotate(180deg)}.privacy{display:flex;gap:55px;align-items:center;background:#1d3256;color:#fff;margin-top:90px;border-radius:27px;padding:65px 75px}.privacy-symbol{flex:none;width:160px;height:160px;border:1px solid #5a7197;border-radius:50%;display:grid;place-items:center;outline:1px solid #3a5176;outline-offset:15px}.privacy-symbol svg{width:65px;height:65px;color:#becdf4}.privacy h2{font-size:42px}.privacy p{max-width:610px;color:#c2cee1;font-size:15px}.privacy .fine{font-size:12px;color:#9eaec7;margin-bottom:0}.support{padding-block:110px;display:grid;grid-template-columns:.9fr 1.1fr;gap:90px}.support-heading>p{max-width:300px;color:var(--muted);font-size:15px;margin:22px 0}.contact{font-size:12px;max-width:300px;color:#7e8798;border-top:1px solid var(--line);margin-top:30px;padding-top:10px}.faq details{border-bottom:1px solid var(--line);padding:21px 0}.faq details:first-child{padding-top:7px}.faq summary{cursor:pointer;font-size:16px;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:20px}.faq summary:after{content:'+';color:var(--blue);font-size:20px;font-weight:400}.faq details[open] summary:after{content:'−'}.faq p{font-size:14px;color:var(--muted);margin:15px 32px 5px 0}.closing{background:#f0f4fd;border-radius:28px;text-align:center;padding:60px 24px 65px}.closing img{border-radius:18px;margin-bottom:22px}.closing h2{font-size:39px}.closing p{color:var(--muted);font-size:15px;margin-bottom:24px}.button{display:inline-block;background:var(--blue);color:#fff;padding:15px 27px;border-radius:30px;font-size:14px;font-weight:600}footer{display:flex;align-items:center;gap:26px;padding-block:36px;color:var(--muted);font-size:12px}footer .brand{font-size:16px;color:var(--ink);margin-right:auto}body{overflow-x:clip}html[lang=zh-CN] h1{letter-spacing:-2px;font-size:clamp(44px,4.7vw,65px);line-height:1.2}html[lang=zh-CN] h2{letter-spacing:-1px}@media(min-width:1450px){.hero{min-height:740px}}@media(max-width:1000px){.wrap{width:calc(100% - 64px)}.hero{gap:0}.hero-art{transform:scale(.85);transform-origin:center}.hero h1{font-size:64px}.hero .intro{font-size:16px}.paper{left:-20px}.support{gap:50px}.privacy{padding:50px;gap:40px}.feature{padding:28px}.feature h3{font-size:22px}.scan-sample{font-size:20px}.section-top p{max-width:290px}}@media(max-width:700px){.wrap{width:calc(100% - 40px)}.header{height:82px}.brand{font-size:18px}.brand img{width:30px;height:30px}nav{gap:12px;font-size:12px}nav>a:first-child{display:none}.nav-download{display:none}.hero{display:flex;flex-direction:column;min-height:0;align-items:stretch;padding-top:37px}.hero-copy{padding:0}.hero h1{font-size:65px;letter-spacing:-3.8px;margin:22px 0}.platform{font-size:12px}.intro{max-width:360px}.hero-art{height:560px;transform:scale(.85);margin-top:-8px;margin-bottom:-15px}.phone{width:235px}.paper{left:-18px;top:115px;width:220px;height:290px}.floating-note{right:-9px;bottom:20px}.orbit-one{width:440px;height:440px}.orbit-two{width:530px;height:530px}.benefits{display:grid;grid-template-columns:1fr 1fr;font-size:12px;padding-block:22px;gap:18px}.feature-section{padding-top:65px}.section-top{display:block;margin-bottom:28px}.section-top p{max-width:100%;margin-top:20px}.feature-grid{grid-template-columns:1fr;gap:16px}.feature{padding:28px;border-radius:20px}.reading{min-height:390px}.editing{min-height:365px}.pages,.ocr{min-height:290px}.document-sample{max-width:390px}.edit-sample{margin-top:24px}.privacy{margin-top:50px;flex-direction:column;align-items:flex-start;padding:37px 28px;gap:35px}.privacy-symbol{width:80px;height:80px;outline-offset:8px;margin-left:9px}.privacy-symbol svg{width:38px;height:38px}.privacy h2{font-size:35px}.support{padding-block:65px;display:block}.support-heading>p{max-width:100%}.contact{max-width:100%;margin-bottom:30px}.faq details:first-child{padding-top:21px}.faq summary{font-size:15px}.closing{padding:40px 22px}.closing h2{font-size:32px}.closing p{font-size:14px}footer{flex-wrap:wrap;gap:18px;font-size:11px}footer .brand{width:100%}html[lang=zh-CN] .hero h1{font-size:47px}html[lang=zh-CN] h2{font-size:34px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
@media(max-width:700px){.hero-art{transform:none;overflow:hidden;margin-inline:-20px;width:calc(100% + 40px);height:575px}.paper{left:10px}.floating-note{right:12px;bottom:25px}.phone{width:228px}}

.support-email{display:inline-block;color:var(--blue);font-size:17px;font-weight:600;padding:3px 0 9px;text-decoration:underline;text-underline-offset:4px}

.legal{padding-top:45px;padding-bottom:65px}.legal h1{font-size:60px;letter-spacing:-2px;margin:24px 0 16px}.back-link{font-size:14px;color:var(--blue);text-decoration:underline;text-underline-offset:4px}.legal>p{color:var(--muted);font-size:14px}.legal-layout{display:grid;grid-template-columns:230px 1fr;gap:70px;margin-top:50px}.legal aside{align-self:start;position:sticky;top:30px;display:flex;flex-direction:column;gap:15px;font-size:13px;color:var(--muted);line-height:1.5}.legal aside a:hover{color:var(--blue)}.legal article{max-width:760px}.legal article section{scroll-margin-top:40px;margin-bottom:38px}.legal h2{font-size:25px;letter-spacing:-.5px;line-height:1.35}.legal article p{font-size:15px;color:var(--muted);line-height:1.95;overflow-wrap:anywhere}.legal-references a{color:var(--blue);text-decoration:underline}.legal+footer{border-top:1px solid var(--line)}@media(max-width:800px){.legal{padding-top:25px}.legal h1{font-size:42px!important;letter-spacing:-1px!important}.legal-layout{grid-template-columns:1fr;gap:35px;margin-top:35px}.legal aside{position:static;border-block:1px solid var(--line);padding-block:20px;display:grid;grid-template-columns:1fr 1fr;gap:13px}.legal h2{font-size:23px!important}.legal article p{font-size:15px}}

/* Mobile navigation and readable document pages. */
.mobile-menu{display:none}.legal-toc{width:100%}.legal-toc>summary{display:none}.legal-toc-links{display:flex;flex-direction:column;gap:15px}.legal-layout>*{min-width:0}
@media(min-width:801px){.legal-toc::details-content{content-visibility:visible}.legal-toc:not([open]) .legal-toc-links{display:flex}}
@media(max-width:800px){
 .legal aside{display:block;padding:0;border:1px solid var(--line);border-radius:14px;overflow:hidden}
 .legal-toc>summary{display:flex;align-items:center;justify-content:space-between;min-height:52px;padding:14px 18px;font-size:15px;font-weight:600;color:var(--ink);list-style:none;cursor:pointer}
 .legal-toc>summary::-webkit-details-marker{display:none}.legal-toc>summary:after{content:'+';font-size:22px;color:var(--blue)}.legal-toc[open]>summary:after{content:'−'}
 .legal-toc-links{gap:0;padding:0 18px 12px}.legal-toc-links a{padding:11px 0;min-height:44px;font-size:14px;border-top:1px solid var(--line)}
 .legal-layout{gap:32px}.legal article p{font-size:16px;line-height:1.85}.legal article section{margin-bottom:32px}.legal h2{line-height:1.45}
}
@media(max-width:700px){
 .wrap{width:calc(100% - 40px)}.header{height:76px;position:relative;z-index:10}.header .brand{gap:8px;font-size:18px;white-space:nowrap;letter-spacing:-.5px}
 .header nav{gap:2px}.header nav>a{display:none}.header nav>button{display:grid;place-items:center;min-width:44px;min-height:44px;padding:8px;font-size:13px;color:var(--ink)}
 .mobile-menu{display:block}.mobile-menu>summary{list-style:none;display:flex;align-items:center;gap:6px;min-height:44px;min-width:44px;padding:10px 7px;cursor:pointer;color:var(--ink);font-size:13px}.mobile-menu>summary::-webkit-details-marker{display:none}
 .mobile-menu-panel{position:absolute;top:66px;right:0;width:min(300px,calc(100vw - 40px));padding:10px;background:white;border:1px solid var(--line);border-radius:18px;box-shadow:0 16px 45px #192c4a20;display:flex;flex-direction:column}
 .mobile-menu-panel a{display:flex;align-items:center;min-height:48px;padding:12px 14px;font-size:15px;border-radius:10px}.mobile-menu-panel a:hover{background:var(--pale)}.mobile-menu-panel .mobile-download{background:var(--blue);color:white;margin-top:5px;justify-content:center}
 .hero{padding-top:28px}.hero h1{font-size:clamp(40px,12.2vw,60px);line-height:1.08;letter-spacing:-2.6px;margin:21px 0 22px}html[lang=zh-CN] .hero h1{font-size:clamp(37px,10.6vw,51px);line-height:1.23;letter-spacing:-1.8px}
 .hero .intro{font-size:16px;line-height:1.75;margin-bottom:24px;max-width:390px}.platform{font-size:11px;line-height:1.5;gap:8px}.hero-note{font-size:12px;margin-bottom:5px}
 .hero-art{height:450px;margin-top:8px;margin-bottom:8px}.phone{width:188px;padding:5px;border-radius:34px;transform:rotate(5deg);box-shadow:8px 18px 30px #28396320}.phone img{border-radius:26px}.paper{width:190px;height:250px;padding:23px;top:82px;left:12px}.paper h3{font-size:23px}.floating-note{bottom:16px;right:18px;font-size:11px;padding:12px 14px;gap:8px}.orbit-one{width:345px;height:345px}.orbit-two{width:430px;height:430px}
 .benefits{font-size:12px;line-height:1.5;column-gap:10px;row-gap:16px}.benefits span:before{margin-right:7px}.section-top h2{font-size:35px}.section-top p{font-size:16px;line-height:1.7}
 .feature{padding:26px 23px}.feature h3{font-size:23px;line-height:1.35}.feature>p{font-size:16px;line-height:1.75}.reading{min-height:400px}.editing{min-height:365px}.pages,.ocr{min-height:305px}.document-sample{margin-left:0;padding:24px 20px 45px}.document-sample h4{font-size:23px}.document-sample p{font-size:13px}
 .edit-sample{padding:18px}.edit-field{font-size:23px}.edit-toolbar{gap:15px}.edit-toolbar .saved{white-space:nowrap}.mini-pages{padding-left:0;gap:10px}.mini-pages span{width:auto;flex:1;min-width:0;height:74px}.scan-sample{font-size:clamp(17px,5.3vw,23px);padding-inline:12px;gap:10px}
 .privacy{padding:34px 25px}.privacy p{font-size:16px}.privacy .fine{font-size:13px}.support{padding-block:58px}.support-heading>p{font-size:16px}.faq summary{min-height:44px;align-items:center;font-size:16px;line-height:1.5}.faq p{font-size:15px;margin-right:14px;line-height:1.8}.contact{font-size:14px}.support-email{min-height:44px;padding-block:8px;font-size:18px}
 .closing{padding:36px 23px}.closing h2{font-size:30px;line-height:1.3}.closing p{font-size:15px}.button{min-height:48px;display:inline-flex;align-items:center;justify-content:center}
 footer{display:grid;grid-template-columns:1fr 1fr;gap:6px 16px;padding-top:28px;padding-bottom:max(25px,env(safe-area-inset-bottom));font-size:13px}footer .brand{grid-column:1 / -1;width:auto;margin-bottom:6px}footer>span{grid-column:1 / -1;margin-bottom:9px;font-size:12px}footer>a:not(.brand){display:flex;align-items:center;min-height:44px;overflow-wrap:anywhere}
 .legal{padding-top:24px;padding-bottom:30px}.legal h1{font-size:38px!important;line-height:1.2;margin-top:24px}.legal>p{font-size:13px;line-height:1.6}.legal .back-link{display:inline-flex;align-items:center;min-height:44px;font-size:14px}.legal-layout{margin-top:24px}.legal h2{font-size:22px!important;line-height:1.4}.legal article{max-width:100%}.legal article p{margin-top:13px;line-height:1.85;word-break:normal}.legal-references a{display:inline-block;padding-block:6px}
}
@media(max-width:359px){.wrap{width:calc(100% - 32px)}.header .brand{font-size:16px;gap:7px}.header .brand img{width:27px;height:27px}.mobile-menu>summary{gap:4px;padding-inline:4px}.hero-art{margin-inline:-16px;width:calc(100% + 32px)}.feature{padding-inline:20px}.privacy{padding-inline:23px}.edit-toolbar{gap:10px}.hero h1{letter-spacing:-2.2px}}
@media(min-width:701px) and (max-width:1100px){.hero-art{overflow:clip}.hero{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.hero h1{font-size:clamp(44px,6.1vw,64px);letter-spacing:-2.6px}.hero-copy,.feature{min-width:0}}