:root{--ink:#26384e;--muted:#74808d;--blue:#3d5474;--paper:#f7f8fa;--line:#e0e5eb;--serif:"Songti SC","STSong","Noto Serif CJK SC",serif;--sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button{font:inherit}button,a,summary{touch-action:manipulation}a:focus-visible,button:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid #6c89ae;outline-offset:6px;border-radius:4px}img{max-width:100%;height:auto}svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}button{cursor:pointer}p,h1,h2,h3,h4{margin:0}[hidden]{display:none!important}.section-width{width:min(1160px,calc(100% - 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@media(min-width:1500px){.hero{padding-top:110px}.hero h1{font-size:80px}.app-layout{height:550px}.reader-paper p{font-size:13px}.reader-paper h3{font-size:28px}}
@media(max-width:1050px){.section-width{width:calc(100% - 64px)}.site-header{width:calc(100% - 64px)}.app-layout{grid-template-columns:145px minmax(0,1fr);height:480px}.demo-sidebar{padding-inline:8px}.demo-brand{margin-left:8px}.demo-tabs button{gap:8px;padding:11px}.demo-panel{padding:22px}.reader-layout{grid-template-columns:170px minmax(0,1fr);gap:22px}.article-list{padding-right:12px}.article-item{padding:13px 9px}.article-item h3{font-size:10px}.reader-paper{padding:9px 0 0}.reader-paper h3{font-size:23px;margin-top:13px}.reader-paper p{font-size:11px}.reader-paper .paper-last{display:none}.book-grid{gap:18px}.book-cover{height:215px;padding:20px 15px}.book-cover h3{font-size:23px}.book-cover>span{font-size:5px;letter-spacing:1px}.notes-layout{grid-template-columns:160px 1fr;gap:20px}.practices{gap:28px}.practices h3{font-size:19px}.kindle-copy{padding-left:40px}.questions{gap:60px}.margin-note{display:none}}
@media(max-width:700px){html{scroll-padding-top:25px}.section-width,.site-header{width:calc(100% - 40px)}.site-header{height:78px;gap:15px}.brand{font-size:19px}.brand img{width:32px;height:32px}.site-header nav{gap:18px;font-size:11px;margin-left:auto}.site-header nav a:nth-child(2){display:none}.nav-cta{display:none}.hero{padding:57px 0 47px}.hero .eyebrow{font-size:10px;letter-spacing:1px;margin-bottom:22px}.tiny-star{font-size:16px}.hero h1{font-size:clamp(37px,8.8vw,58px);letter-spacing:1px;line-height:1.5}.hero-copy{font-size:12px;line-height:2;margin-top:22px;letter-spacing:0}.hero-actions{gap:20px;margin-top:25px}.button{min-height:43px;font-size:12px;gap:20px}.platform{font-size:10px}.showcase-halo{inset:-20px -10px 0}.app-window{border-radius:10px}.app-topbar{height:30px;padding-inline:12px}.app-topbar>span:nth-child(2){font-size:7px}.traffic{gap:4px}.traffic i{width:6px;height:6px}.app-layout{display:flex;flex-direction:column;height:490px}.demo-sidebar{padding:13px 12px 0;background:#f5f6f8;display:block}.demo-brand,.sidebar-bottom{display:none}.demo-tabs{margin:0;flex-direction:row;gap:6px;justify-content:space-between}.demo-tabs button{flex:1;justify-content:center;font-size:10px;padding:10px 7px;border-radius:6px 6px 0 0;gap:6px}.demo-tabs button small{display:none}.demo-tabs svg{height:14px;width:14px}.demo-main{flex:1;min-height:0}.demo-panel{padding:19px 20px}.demo-heading{margin-bottom:13px;height:28px;gap:15px}.demo-heading h2{font-size:14px}.reader-layout{display:block;height:auto}.article-list{display:none}.reader-paper{padding:8px 5px 0;max-width:380px;margin:auto}.reader-paper h3{font-size:25px;line-height:1.45;margin-top:16px;margin-bottom:16px}.reader-paper p{font-size:12px;line-height:2.05;margin-bottom:15px}.reader-bottom{margin-top:20px}.showcase-caption{font-size:8px;line-height:1.8;gap:12px;align-items:start;margin-top:13px}.showcase-caption>span{max-width:66px;text-align:right;flex-shrink:0}.showcase-caption p{align-items:start}.caption-dot{flex-shrink:0;margin-top:5px}.library-intro{font-size:10px;line-height:1.8;margin-bottom:21px}.book-grid{gap:13px;grid-template-columns:repeat(2,minmax(0,1fr))}.demo-book:last-child{display:none}.book-cover{height:210px;padding:20px 15px}.book-cover h3{font-size:24px}.book-cover small{left:15px;font-size:6px}.demo-book h4{font-size:10px}.library-bottom{margin-top:25px;font-size:8px;line-height:1.8;gap:12px}.outline-tag{font-size:7px;padding:6px;flex-shrink:0}.notes-layout{display:block}.note-folders{display:none}.note-paper{padding:8px 5px 0}.note-paper h3{font-size:26px;margin:18px 0}.note-paper p,.note-paper li{font-size:11px}.note-paper ul{margin-bottom:18px}.practice{padding-top:85px;padding-bottom:70px}.section-heading{display:block}.section-heading .eyebrow{font-size:10px;margin-bottom:18px}.section-heading h2,.kindle-copy h2,.question-intro h2{font-size:31px;letter-spacing:.5px}.section-heading>p:last-child{margin-top:20px;font-size:12px}.practices{grid-template-columns:1fr;gap:29px;margin-top:35px}.practices article{padding-top:23px}.practices h3{font-size:21px;margin:14px 0 10px}.practices p{font-size:12px;max-width:100%}.feature-detail{margin-top:15px}.kindle-section{grid-template-columns:1fr;min-height:0}.kindle-copy{padding:36px 30px 0}.kindle-copy .eyebrow{font-size:10px}.kindle-copy p:not(.eyebrow){margin-top:18px;font-size:11px}.text-link{margin-top:20px}.kindle-art{height:350px;margin-top:10px}.reader-device{width:195px;height:267px;padding:10px 10px 26px;transform:rotate(8deg) translateY(-5px)}.device-screen{padding:20px}.device-screen h3{font-size:16px}.device-screen p{font-size:7px}.device-page{margin-top:12px}.orbit{width:310px;height:310px;top:20px;left:calc(50% - 155px)}.orbit-two{width:410px;height:410px;top:-30px;left:calc(50% - 205px)}.floating-note{bottom:22px;right:24px;font-size:8px}.questions{padding:80px 0 70px;display:block}.question-intro{position:relative}.question-intro .eyebrow{font-size:10px}.question-intro img{position:absolute;right:10px;top:5px;width:70px;height:70px}.faq-list{padding-top:26px}summary{font-size:13px;padding:21px 0}details p{font-size:11px}.closing{padding:47px 0 50px}.closing h2{font-size:32px;letter-spacing:2px}.closing p{font-size:10px;line-height:1.9;padding:0 20px}.coming-soon{font-size:9px;margin-top:24px}.mobile-break{display:block}.site-footer{flex-wrap:wrap;padding-block:22px 28px;gap:10px}.site-footer .brand{font-size:15px}.site-footer .brand img{height:27px;width:27px}.site-footer p{order:3;width:100%;font-size:9px;padding-left:3px}.site-footer>span{font-size:8px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}

/* Keep editorial copy readable on the pale paper background. */
.hero-copy,.section-heading>p:last-child,.practices p,.kindle-copy p:not(.eyebrow),details p{color:#667484}.closing p{color:#6f7d8d}.site-footer p,.site-footer>span,.showcase-caption{color:#758292}

/* Actual native application captures, never reconstructed UI. */
.screenshot-tabs{display:flex;justify-content:center;gap:9px;margin-bottom:23px}.screenshot-tabs button{background:transparent;border:1px solid transparent;color:#728094;border-radius:24px;padding:10px 24px;font-size:12px;transition:background .2s,color .2s}.screenshot-tabs button[aria-selected=true]{background:#e7edf4;border-color:#dce4ed;color:#3d5474;font-weight:600}.screenshot-tabs button:hover{background:#edf1f6}.app-shots{border:1px solid #dbe1e7;border-radius:14px;overflow:hidden;background:#f7f8fa;box-shadow:0 25px 70px -30px #26384e35,0 3px 10px #26384e05}.app-shots figure{margin:0;line-height:0}.app-shots img{display:block;width:100%;height:auto}.showcase-caption>span{white-space:nowrap}.showcase{scroll-margin-top:25px}@media(max-width:700px){.screenshot-tabs{gap:5px;margin-bottom:15px}.screenshot-tabs button{padding:9px 20px;font-size:11px}.app-shots{border-radius:7px}.showcase-caption{flex-direction:column;gap:3px}.showcase-caption>span{max-width:none;text-align:left;padding-left:11px}}

.notes-feature{display:grid;grid-template-columns:.8fr 1.2fr;gap:45px;align-items:center;padding:54px;background:#e8edf3;border-radius:12px}.notes-feature h2{font-family:var(--serif);font-size:39px;font-weight:500;line-height:1.5;margin:20px 0}.notes-feature p:not(.eyebrow){font-size:12px;line-height:2.2;color:#667484}.notes-feature img{display:block;border-radius:8px;border:1px solid #dbe1e7;box-shadow:0 15px 35px #26384e12}.app-shots a{display:block;cursor:zoom-in}@media(max-width:700px){.notes-feature{grid-template-columns:1fr;padding:32px 24px;gap:28px}.notes-feature h2{font-size:31px}.notes-feature p:not(.eyebrow){font-size:11px}}
