@font-face{font-family:Manrope;src:url('/assets/manrope.woff2') format('woff2');font-style:normal;font-weight:400 800;font-display:swap}
:root{--ground:#f5f7fa;--paper:#fff;--ink:#182334;--muted:#5c6879;--line:#dce2eb;--blue:#145bdd;--blue-deep:#1043a4;--mint:#0f766e;--coral:#b7452d;--glass:rgba(255,255,255,.74);--blue-wash:#e9f0ff;--mint-wash:#e3f1ec;--coral-wash:#faeee8;--shadow:0 28px 66px -28px rgba(34,58,101,.35);--font:Manrope,'PingFang SC','Microsoft YaHei',sans-serif;--ease:cubic-bezier(.16,1,.3,1);--space-1:8px;--space-2:16px;--space-3:24px;--space-4:40px;--space-5:64px;--space-6:104px;--radius:28px;--logo-line:#fff;color-scheme:light}
:root[data-theme=dark]{--ground:#101722;--paper:#1d2736;--ink:#edf2fa;--muted:#abb7c9;--line:#344153;--blue:#94baff;--blue-deep:#d4e3ff;--mint:#8bdbcd;--coral:#ffb29e;--glass:rgba(29,39,54,.84);--blue-wash:#222f48;--mint-wash:#1a3636;--coral-wash:#3b2a29;--shadow:0 28px 66px -28px rgba(0,0,0,.75);--logo-line:#101722;color-scheme:dark}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:105px}body{margin:0;background:var(--ground);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-wrap:break-word}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none;text-underline-offset:4px}button{font:inherit;cursor:pointer}button:disabled{cursor:default;opacity:.6}button[hidden],[hidden]{display:none!important}::selection{background:var(--blue);color:var(--paper)}:focus-visible{outline:3px solid var(--blue);outline-offset:5px}button{caret-color:var(--blue)}html{scrollbar-color:var(--line) var(--ground)}h1,h2,h3,p{margin:0}h1,h2,h3{text-wrap:balance;line-height:1.15}h1,h2{letter-spacing:-.04em}h3{letter-spacing:-.03em}a:hover{text-decoration:none}a.text-link:hover,a.back-link:hover,.site-footer nav a:hover{text-decoration:underline}svg{display:block}.icon{width:22px;height:22px;flex:none}.wrap{max-width:1200px;width:calc(100% - 96px);margin-inline:auto}.sr-only,.skip:not(:focus){position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.skip:focus{position:fixed;top:14px;left:14px;padding:12px 20px;background:var(--paper);z-index:100}.site-header{position:sticky;top:16px;z-index:30;width:calc(100% - 96px);max-width:1200px;margin:16px auto 0;height:68px;display:flex;align-items:center;justify-content:space-between;padding:0 22px;border-radius:22px;background:var(--glass);backdrop-filter:blur(24px) saturate(145%);-webkit-backdrop-filter:blur(24px) saturate(145%);box-shadow:0 8px 32px -18px rgba(28,48,80,.26)}.brand{display:inline-flex;gap:10px;align-items:center;font-size:21px;font-weight:800;letter-spacing:-.04em}.logo-mark{width:34px;height:34px;color:var(--blue)}.site-header nav{display:flex;gap:30px;align-items:center;margin-left:40px}.site-header nav a{font-size:14px;font-weight:600;min-height:44px;display:flex;align-items:center}.site-header nav a:hover{color:var(--blue)}.header-actions{display:flex;align-items:center;gap:8px}.icon-button,.language{display:inline-flex;align-items:center;justify-content:center;min-width:44px;min-height:44px;border:0;background:transparent;color:var(--ink);border-radius:14px}.language{font-size:13px;font-weight:650}.icon-button:hover,.language:hover{background:var(--blue-wash)}.theme-toggle .sun{display:none}[data-theme=dark] .theme-toggle .sun{display:block}[data-theme=dark] .theme-toggle .moon{display:none}.button{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:50px;padding:13px 22px;border:0;border-radius:16px;font-size:14px;font-weight:700;line-height:1.5;transition:background .2s,transform .2s var(--ease)}.button:hover{transform:translateY(-2px)}.primary{color:#fff;background:#145bdd}.primary:hover{background:#104bbd}.text-link{display:inline-flex;gap:10px;align-items:center;color:var(--blue);font-weight:650;min-height:44px;font-size:14px}.hero{min-height:720px;display:grid;grid-template-columns:1fr 1.02fr;gap:40px;align-items:center;padding-top:58px;padding-bottom:76px}.hero h1{font-size:clamp(46px,5.6vw,76px);font-weight:750;max-width:600px}.hero h1 br+*{color:var(--blue)}.hero-copy>p{margin:26px 0 28px;color:var(--muted);max-width:455px;font-size:17px;line-height:1.8}.hero-product-names{display:flex;gap:16px;flex-wrap:wrap;margin-top:26px;font-size:11px;font-weight:600;color:var(--muted)}.showcase{position:relative;min-width:0;padding:20px 20px 0;isolation:isolate}.stage-aura{position:absolute;z-index:-2;inset:-20px -45px 50px;background:radial-gradient(ellipse at 30% 30%,#cbdffc 0%,transparent 58%),radial-gradient(ellipse at 85% 60%,#d8ede9 0%,transparent 62%);border-radius:50%;filter:blur(18px);opacity:.85}.stage-rear{position:absolute;inset:46px 35px 145px;border-radius:32px;background:var(--glass);transform:rotate(7deg);z-index:-1;box-shadow:var(--shadow)}.stage-caption{display:flex;align-items:center;gap:7px;font-size:11px;font-weight:650;color:var(--muted);margin:0 0 12px 16px}.live-dot{width:6px;height:6px;border-radius:50%;background:var(--mint)}.preview-shell{position:relative;height:365px;overflow:hidden;border-radius:28px;box-shadow:var(--shadow);background:var(--paper);transform:rotate(-2deg);transition:transform .5s var(--ease)}.showcase:focus-within .preview-shell,.showcase:hover .preview-shell{transform:rotate(0)}.product-preview{height:100%;animation:preview-in .45s var(--ease) both}.mini-wordmark{display:flex;gap:8px;align-items:center;font-size:12px;font-weight:700}.mini-wordmark .icon{width:19px;height:19px}.book-preview,.sheet-preview,.lens-preview{height:100%;padding:22px 26px;display:flex;flex-direction:column}.book-preview{background:linear-gradient(145deg,var(--paper),var(--blue-wash));color:var(--ink)}.book-preview .mini-wordmark{color:var(--blue-deep)}.book-paper{flex:1;text-align:center;padding:12px 20px 14px;display:flex;align-items:center;justify-content:center;flex-direction:column}.paper-symbol{color:#aa822f;margin-bottom:10px}.paper-symbol .icon{width:26px;height:26px}.book-paper h2{font-size:24px;font-weight:650;max-width:340px;line-height:1.27}.book-paper p{font-size:12px;line-height:1.75;color:var(--muted);margin-top:12px;max-width:310px}.paper-bottom{font-size:11px;margin-top:15px;color:var(--muted)}.demo-button{display:flex;align-items:center;justify-content:center;gap:9px;min-height:44px;font-size:12px;font-weight:650;border:0;border-radius:12px;background:var(--paper);color:var(--blue-deep)}.demo-button:hover{background:var(--blue-wash)}.demo-button .icon{width:16px;height:16px}.app-dock{display:flex;justify-content:center;gap:3px;position:relative;z-index:2;margin:24px auto 0;padding:9px 12px;width:fit-content;max-width:100%;border-radius:25px;background:var(--glass);backdrop-filter:blur(20px);box-shadow:0 18px 32px -20px rgba(32,58,91,.42)}.app-dock button{width:110px;padding:7px 8px 4px;border:0;background:transparent;display:flex;align-items:center;flex-direction:column;gap:7px;color:var(--muted);font-size:11px;font-weight:600;border-radius:16px}.app-dock button[aria-selected=true]{color:var(--ink);background:var(--paper)}.app-dock button .app-icon{width:48px;height:48px;border-radius:14px;transition:transform .32s var(--ease)}.app-dock button:hover .app-icon{transform:translateY(-3px)}.app-dock button .icon{width:27px;height:27px}.app-icon{display:inline-flex;align-items:center;justify-content:center;width:64px;height:64px;border-radius:19px;color:#fff;box-shadow:inset 0 1px 1px rgba(255,255,255,.6),inset 0 -5px 10px rgba(0,0,0,.12)}.app-icon .icon{width:36px;height:36px;stroke-width:1.4}.app-icon.answer{background:linear-gradient(150deg,#629eff,#235dd9)}.app-icon.sheetdelta{background:linear-gradient(150deg,#4fc9a5,#087862)}.app-icon.shiplens{background:linear-gradient(150deg,#ffa17e,#cb5234)}.stage-open{display:flex;justify-content:center;align-items:center;gap:8px;font-size:12px;font-weight:650;min-height:44px;margin-top:8px;color:var(--blue)}.stage-open .icon{width:15px;height:15px}.demo-disclaimer{font-size:11px;text-align:center;color:var(--muted)}.sheet-preview{background:var(--paper)}.sheet-preview .mini-wordmark{color:var(--mint)}.file-row{display:flex;align-items:center;gap:8px;font-size:11px;margin:25px 0 16px;color:var(--muted);justify-content:space-between}.file-row .icon{width:14px;height:14px}.sheet-preview table{border-collapse:collapse;width:100%;font-size:12px;font-variant-numeric:tabular-nums}.sheet-preview th,.sheet-preview td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--line)}.sheet-preview th{font-size:11px;color:var(--muted);font-weight:600}.changed-row{transition:background .3s,color .3s}.compared .changed-row{background:var(--mint-wash);color:var(--mint);font-weight:700}.demo-result{min-height:43px;display:flex;align-items:center;font-size:11px;color:var(--muted);margin:5px 0}.sheet-preview .demo-button{background:var(--mint-wash);color:var(--mint)}.lens-preview .mini-wordmark{color:var(--coral)}.browser-mini{border-radius:12px;border:1px solid var(--line);margin-top:20px;background:var(--ground);overflow:hidden;height:172px;flex:none}.browser-bar{height:26px;display:flex;align-items:center;gap:4px;padding:0 10px;border-bottom:1px solid var(--line)}.browser-bar i{width:5px;height:5px;background:var(--line);border-radius:50%}.browser-bar span{margin-left:12px;font-size:11px;color:var(--muted)}.mock-content{position:relative;height:145px;width:72%;margin:0 auto;border-inline:1px dashed var(--line);padding:20px 16px}.mock-title{height:10px;width:70%;border-radius:4px;background:var(--ink);opacity:.8}.mock-line{height:5px;width:85%;border-radius:3px;background:var(--muted);opacity:.2;margin-top:10px}.mock-line.short{width:55%;margin-top:5px}.mock-button{height:22px;width:calc(100% + 40px);background:var(--blue-wash);border-radius:6px;margin-top:15px}.overflow-outline{position:absolute;inset:74px -30px 38px 9px;border:2px solid var(--coral);border-radius:9px;opacity:0;transition:opacity .2s}.inspected .overflow-outline{opacity:1}.lens-preview .demo-button{background:var(--coral-wash);color:var(--coral)}.products{padding-top:55px}.section-intro{display:flex;align-items:end;justify-content:space-between;gap:45px;margin-bottom:72px}.section-intro h2{font-size:44px;max-width:510px}.section-intro p{font-size:14px;color:var(--muted);max-width:255px;margin-bottom:3px}.product-row{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:90px;margin-bottom:125px}.product-row.reverse .product-story{order:2}.product-row.reverse .product-art{order:1}.product-name{font-weight:700;font-size:15px;margin-top:18px;margin-bottom:16px}.product-story>h3{font-size:37px;font-weight:700}.description{font-size:15px;color:var(--muted);line-height:1.8;margin-top:19px;max-width:470px}.product-story ul{list-style:none;padding:0;margin:22px 0 25px;display:grid;gap:8px;font-size:12px;font-weight:550}.product-story li{display:flex;align-items:start;gap:8px}.product-story li .icon{width:16px;height:16px;margin-top:2px;color:var(--blue)}.product-row.mint .product-story li .icon{color:var(--mint)}.product-row.coral .product-story li .icon{color:var(--coral)}.product-links{display:flex;align-items:center;flex-wrap:wrap;gap:12px 22px}.product-links .button{font-size:12px;padding:12px 18px;min-height:46px}.product-links .text-link{font-size:12px}.product-links .icon{width:17px;height:17px}.product-art{position:relative;display:flex;align-items:center;justify-content:center;min-height:420px;border-radius:36px;isolation:isolate;overflow:hidden}.product-art.answer{background:var(--blue-wash)}.product-art.sheetdelta{background:var(--mint-wash)}.product-art.shiplens{background:var(--coral-wash)}.object-book{background:linear-gradient(125deg,#2861be,#164394);width:215px;height:288px;transform:rotate(-6deg);border-radius:20px;display:flex;align-items:center;flex-direction:column;color:#ecf3ff;padding:29px 26px 20px;position:relative}.object-book>span{font-size:11px;letter-spacing:.12em}.object-book strong{white-space:pre-line;font-family:Georgia,'Songti SC',serif;font-size:35px;font-weight:400;line-height:1.05;text-align:center;margin:25px 0 18px}.object-book>.icon{width:30px;height:30px;color:#d4c69c}.object-book small{margin-top:auto;font-size:11px;letter-spacing:.08em}.floating-note{position:absolute;bottom:38px;right:24px;padding:20px 24px;max-width:230px;transform:rotate(6deg);background:var(--paper);box-shadow:0 14px 35px -20px rgba(29,50,86,.45);border-radius:12px;font-size:13px}.object-sheet{width:82%;background:var(--paper);padding:22px 21px;border-radius:20px;box-shadow:var(--shadow);transform:perspective(850px) rotateY(9deg) rotateZ(5deg)}.sheet-label{font-size:12px;font-weight:650;margin-bottom:16px;color:var(--mint)}.sheet-columns{display:grid;grid-template-columns:repeat(3,1fr);font-size:11px;text-align:center;color:var(--muted);margin-bottom:9px}.sheet-cellgrid{display:grid;grid-template-columns:repeat(3,1fr);font-size:13px;font-variant-numeric:tabular-nums}.sheet-cellgrid span{padding:12px;border-bottom:1px solid var(--line)}.sheet-cellgrid span:nth-child(-n+3){font-size:11px;color:var(--muted)}.sheet-cellgrid .cell-change{background:var(--mint-wash);color:var(--mint);font-weight:700}.sheet-change{display:flex;align-items:center;gap:9px;color:var(--mint);font-size:12px;margin-top:21px}.sheet-change .icon{width:18px;height:18px}.art-note{position:absolute;bottom:20px;left:0;right:0;text-align:center;font-size:11px;color:var(--muted)}.object-browser{width:83%;border-radius:18px;background:var(--paper);box-shadow:var(--shadow);transform:perspective(850px) rotateY(-8deg) rotateZ(-5deg);overflow:hidden}.object-toolbar{display:flex;gap:5px;align-items:center;height:38px;padding:0 15px;border-bottom:1px solid var(--line)}.object-toolbar>span{width:7px;height:7px;border-radius:50%;background:var(--line)}.object-toolbar small{font-size:11px;color:var(--muted);margin-left:14px}.device-pair{display:flex;align-items:end;justify-content:center;gap:16px;padding:30px 25px}.desktop-device,.phone-device{border:2px solid var(--ink);border-radius:7px;width:180px;height:120px;padding:15px 10px;position:relative}.phone-device{width:58px;height:106px;border-radius:10px;padding:18px 8px 12px}.device-pair i{display:block;width:20px;height:20px;border-radius:7px;background:var(--coral);margin-bottom:10px}.device-pair b,.device-pair em{display:block;height:5px;width:72%;background:var(--muted);opacity:.6;border-radius:2px;margin-bottom:6px}.device-pair em{height:3px;width:100%;opacity:.25}.phone-device i{height:14px;width:14px;border-radius:4px}.evidence-strip{display:flex;align-items:center;justify-content:center;gap:8px;font-size:11px;background:var(--coral-wash);padding:13px;color:var(--coral)}.evidence-strip .icon{width:17px;height:17px}.approach{padding:80px 0 105px;border-top:1px solid var(--line);display:grid;grid-template-columns:.7fr 1fr;gap:80px;align-items:center}.approach-mark{display:flex;align-items:center;justify-content:center;position:relative;isolation:isolate}.approach-mark:before{content:'';position:absolute;inset:-30px 20px;background:radial-gradient(ellipse,var(--blue-wash),transparent 65%);z-index:-1}.approach-mark>.logo-mark{width:180px;height:180px;transform:rotate(-9deg);filter:drop-shadow(0 22px 18px rgba(20,91,221,.13))}.approach h2{font-size:40px}.approach p{font-size:15px;color:var(--muted);margin:24px 0 20px;line-height:1.85;max-width:570px}.closing{text-align:center;padding:80px 80px 86px;border-radius:36px;background:var(--paper);margin-bottom:95px}.closing h2{font-size:42px;max-width:670px;margin:auto}.closing p{margin:22px auto 28px;max-width:520px;font-size:15px;color:var(--muted)}.site-footer{width:calc(100% - 96px);max-width:1200px;margin:0 auto;padding:0 0 35px;display:grid;grid-template-columns:1fr auto;align-items:start;gap:30px}.site-footer .brand{font-size:20px}.site-footer .logo-mark{width:28px;height:28px}.site-footer p{font-size:12px;color:var(--muted);margin-top:12px}.site-footer nav{display:flex;gap:25px;font-size:12px}.site-footer nav a{display:flex;gap:5px;align-items:center;min-height:44px}.site-footer nav .icon{width:12px;height:12px}.site-footer small{grid-column:1/-1;font-size:11px;color:var(--muted);padding-top:22px;border-top:1px solid var(--line)}.detail-main{padding:65px 0 105px}.back-link{display:inline-flex;min-height:44px;align-items:center;color:var(--muted);font-size:13px}.detail-intro{padding-top:35px;max-width:820px}.detail-intro h1{font-size:54px;margin-top:20px;max-width:790px}.lead{font-size:19px;color:var(--muted);line-height:1.8;margin-top:26px;max-width:760px}.detail-intro .product-links{margin-top:28px}.detail-body{display:grid;grid-template-columns:1fr 1fr;gap:48px 75px;margin-top:75px}.detail-body h2{font-size:23px;line-height:1.35;letter-spacing:-.02em}.detail-body p{font-size:15px;color:var(--muted);line-height:1.85;margin-top:17px}.other-products{margin-top:70px;padding-top:45px;border-top:1px solid var(--line);display:grid;grid-template-columns:1fr 1fr;gap:16px}.other-products h2{grid-column:1/-1;font-size:28px;margin-bottom:15px}.other-products>a{display:flex;align-items:center;gap:18px;padding:18px 22px;border-radius:18px;background:var(--paper);font-size:17px;font-weight:650}.other-products .app-icon{width:45px;height:45px;border-radius:14px}.other-products .app-icon .icon{width:25px;height:25px}.other-products small{display:block;color:var(--muted);font-size:11px;font-weight:400;margin-top:4px}.other-products>a>.icon{margin-left:auto}.text-page{max-width:830px;padding:80px 0 100px;min-height:65vh}.text-page h1{font-size:58px}.text-page section{margin:46px 0}.text-page section h2{font-size:25px;line-height:1.4;letter-spacing:-.02em}.text-page section p{font-size:16px;color:var(--muted);line-height:1.9;margin-top:16px}.text-page section .text-link{margin-top:15px}.about-links{display:flex;flex-wrap:wrap;gap:15px 25px;margin-top:15px}.text-page>.button+.text-link{margin-left:20px}[data-theme=dark] .stage-aura{opacity:.14}[data-theme=dark] .paper-symbol{color:#dfc986}
@keyframes preview-in{from{opacity:.75;transform:translateY(8px);filter:blur(2px)}to{opacity:1;transform:translateY(0);filter:blur(0)}}
@media(min-width:1450px){.hero{gap:75px;min-height:760px}.hero h1{font-size:80px}.preview-shell{height:375px}}
@media(max-width:1100px){.wrap,.site-header,.site-footer{width:calc(100% - 64px)}.hero{gap:24px;min-height:700px}.hero h1{font-size:58px}.hero-copy>p{font-size:16px}.showcase{padding-inline:10px}.stage-aura{inset:0 -20px 80px}.product-row{gap:50px}.product-story>h3{font-size:33px}.product-art{min-height:380px}.product-links{gap:10px 15px}.book-preview,.sheet-preview,.lens-preview{padding:22px 20px}.app-dock button{width:95px}.book-paper{padding-inline:3px}.book-paper h2{font-size:22px}.floating-note{right:14px;max-width:200px;font-size:12px}.section-intro h2{font-size:39px}}
@media(max-width:800px){.hero{grid-template-columns:1fr;padding-top:62px;gap:45px}.hero-copy{max-width:630px}.hero h1{font-size:66px;max-width:650px}.hero-copy>p{max-width:550px}.hero-product-names{margin-top:22px}.showcase{width:100%;max-width:530px;margin:auto}.preview-shell{height:365px}.book-paper h2{font-size:26px}.section-intro{align-items:start;flex-direction:column;gap:20px;margin-bottom:48px}.section-intro p{max-width:none}.product-row{gap:32px;margin-bottom:90px}.product-story>h3{font-size:28px}.product-art{min-height:330px}.product-story ul{font-size:11px}.product-story .description{font-size:14px}.product-art .object-book{transform:scale(.83) rotate(-10deg)}.floating-note{bottom:24px;padding:14px 17px;max-width:175px}.object-sheet{width:89%;padding:17px 12px}.sheet-cellgrid span{padding:10px 6px;font-size:11px}.object-browser{width:90%}.device-pair{padding:27px 16px;gap:9px}.desktop-device{width:130px;height:105px}.phone-device{width:42px;height:88px}.approach{gap:45px;grid-template-columns:.65fr 1fr}.approach h2{font-size:34px}.approach-mark>.logo-mark{width:135px;height:135px}.closing{padding:60px 40px}.closing h2{font-size:36px}.detail-intro h1{font-size:44px}.detail-body{gap:36px}.site-footer nav{gap:18px}.site-footer{grid-template-columns:1fr}.text-page h1{font-size:48px}}
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