@charset "UTF-8";
:root{--blue:#169fe6;--navy:#102a43;--ice:#eff8fe;--yellow:#ffd15a;--muted:#526a7d;--line:#dcebf5;--header:76px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header) + 20px)}body{margin:0;color:var(--navy);background:white;font:16px/1.7 "Microsoft YaHei","PingFang SC",sans-serif;-webkit-font-smoothing:antialiased}body:has(dialog[open]){overflow:hidden}h1,h2,h3,p,ul{margin:0}ul{list-style:none;padding:0}img{display:block;max-width:100%;height:auto}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}a,button,summary{-webkit-tap-highlight-color:transparent;touch-action:manipulation}a:active,button:active{filter:brightness(.9)}:focus-visible{outline:3px solid #0074bd;outline-offset:5px}section:focus{outline:none}.container{width:calc(100% - 64px);max-width:1200px;margin-inline:auto}.section{padding:74px 0}h2{font-size:36px;line-height:1.4;letter-spacing:-1px}h3{line-height:1.5}.eyebrow{font-size:11px;letter-spacing:2px;font-weight:700;color:#2876a6;margin-bottom:18px}.section-heading{margin-bottom:36px}.section-heading>p{color:var(--muted);font-size:15px;margin-top:10px}.centered{text-align:center}.section-title{font-weight:800}.button{display:inline-flex;align-items:center;justify-content:center;gap:18px;min-height:48px;padding:12px 30px;background:var(--yellow);color:var(--navy);border-radius:28px;font-size:15px;font-weight:800;transition:transform .2s,box-shadow .2s}.button:hover{transform:translateY(-2px);box-shadow:0 5px 14px #102a4318}.icon{display:inline-flex;width:24px;height:24px;flex:none;vertical-align:middle}.icon::before{content:"";width:100%;height:100%;background:currentColor;mask:var(--icon) center/contain no-repeat;-webkit-mask:var(--icon) center/contain no-repeat}
.icon-menu{--icon:url("../icons/kb-menu.svg")}.icon-arrow{--icon:url("../icons/kb-arrow.svg")}.icon-book{--icon:url("../icons/kb-book.svg")}.icon-grid{--icon:url("../icons/kb-grid.svg")}.icon-file{--icon:url("../icons/kb-file.svg")}.icon-expand{--icon:url("../icons/kb-expand.svg")}.icon-plus{--icon:url("../icons/kb-plus.svg")}.icon-chart{--icon:url("../icons/kb-chart.svg")}.icon-download{--icon:url("../icons/kb-download.svg")}.icon-compass{--icon:url("../icons/kb-compass.svg")}.icon-settings{--icon:url("../icons/kb-settings.svg")}.icon-refresh{--icon:url("../icons/kb-refresh.svg")}.icon-help{--icon:url("../icons/kb-help.svg")}.icon-close{--icon:url("../icons/kb-close.svg")}
.skip-link{position:fixed;top:-100px;left:20px;z-index:99;background:var(--navy);color:white;padding:12px 20px}.skip-link:focus{top:10px}.site-header{position:sticky;top:0;z-index:30;background:#fffffff5;border-bottom:1px solid #edf4f8;backdrop-filter:blur(12px)}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:22px;min-height:var(--header)}.brand{display:flex;align-items:center;gap:10px;font-weight:900;font-size:23px;flex:none}.brand img{width:42px;height:42px;object-fit:contain;border-radius:9px}.primary-nav ul{display:flex;gap:23px}.primary-nav a{display:block;font-size:12px;font-weight:600;padding:25px 0;position:relative}.primary-nav a:hover,.primary-nav a[aria-current]{color:#007ebc}.primary-nav a[aria-current]::after{content:"";position:absolute;bottom:12px;left:0;right:0;height:3px;background:var(--blue)}.header-download{font-size:12px;padding:10px 21px;min-height:44px}.header-download .icon{width:15px;height:15px}.menu-toggle{display:none;width:44px;height:44px;border:0;background:transparent;color:var(--navy)}
.hero{position:relative;overflow:hidden;background:linear-gradient(115deg,#f0faff 0%,#d8f0ff 62%,#effaff 100%)}.hero::before,.hero::after{content:"";position:absolute;width:75%;height:68%;border:1px solid #ffffffbd;border-radius:50%;right:-9%;top:14%;transform:rotate(-25deg);pointer-events:none}.hero::after{width:110%;height:40%;right:-20%;top:58%;background:#8cd5ff26}.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:center;min-height:600px;position:relative;z-index:1}.hero-copy{padding:50px 0}.hero-copy h1{font-size:76px;font-weight:900;line-height:1.2;letter-spacing:-3px}.hero-copy h2{font-size:30px;margin-top:18px;letter-spacing:-1px}.hero-description{max-width:480px;color:var(--muted);font-size:17px;margin:22px 0 30px}.hero-copy .button{min-width:220px;min-height:58px;font-size:18px}.hero-art{height:550px;position:relative;min-width:0}.hero-screen{position:absolute;width:245px;padding:5px;background:white;border-radius:20px;border:1px solid #d6edf8;box-shadow:0 12px 32px #1478ac24;overflow:hidden}.hero-screen img{width:100%;border-radius:14px}.screen-one{left:3%;top:35px;transform:rotate(-7deg);z-index:2}.screen-two{right:0;top:75px;transform:rotate(7deg)}.paper-panel{position:absolute;inset:15% -5% 15% 5%;border:1px solid white;border-radius:50%;transform:rotate(-25deg)}
.product-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;position:relative}.product-card{min-width:0;display:flex;flex-direction:column;border:1px solid #e5eff5;border-radius:15px;padding:12px;background:white;box-shadow:0 6px 18px #102a4305;transition:transform .2s}.product-card:hover{transform:translateY(-4px)}.product-label{order:2;display:flex;gap:10px;padding:18px 2px 5px;align-items:start}.product-label>b{font-size:22px;font-weight:900;color:#087ebc;line-height:1.4}.product-label h3{font-size:17px}.product-label p{font-size:11px;margin-top:5px;color:var(--muted)}.gallery-link{display:block;position:relative}.product-card .gallery-link{aspect-ratio:360/640;overflow:hidden;border-radius:9px;background:#f6fbff}.product-card .gallery-link>img{width:100%;height:100%;object-fit:contain}.zoom-label{position:absolute;right:8px;bottom:8px;display:flex;gap:5px;align-items:center;border-radius:5px;padding:6px 8px;background:#102a43e8;color:white;font-size:11px;opacity:0;transition:opacity .2s}.zoom-label .icon{width:16px;height:16px}.gallery-link:hover .zoom-label,.gallery-link:focus-visible .zoom-label{opacity:1}.gallery-controls{display:none}
.discovery{background:linear-gradient(110deg,#f2faff,#e5f5ff)}.discovery-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:90px;align-items:center}.discovery-copy h2{max-width:380px;font-size:38px}.lead{color:var(--muted);font-size:16px;margin-top:22px;max-width:390px}.discover-list{position:relative;padding-left:45px}.discover-list::before{content:"";position:absolute;top:20px;bottom:30px;left:17px;width:1px;background:#8dcced}.discover-list details{position:relative;background:white;border:1px solid #dceffa;border-radius:8px;margin:16px 0}.discover-list summary{display:flex;align-items:center;gap:18px;padding:23px;cursor:pointer;list-style:none}.discover-list summary>b{position:absolute;left:-45px;top:24px;border-radius:50%;width:34px;height:34px;background:#078ed2;color:white;display:grid;place-items:center;font-size:12px}.discover-list summary>.icon{color:#078ed2;width:30px;height:30px}.discover-list summary>.icon:last-child{width:16px;height:16px;margin-left:auto}.discover-list summary strong{font-size:18px;display:block}.discover-list summary small{font-size:12px;color:var(--muted);display:block;margin-top:4px}.discover-list details>p{font-size:13px;color:var(--muted);padding:0 24px 22px 72px}.discover-list details[open] summary>.icon:last-child{transform:rotate(45deg)}summary::-webkit-details-marker{display:none}
.download-center{background:linear-gradient(120deg,#102a43,#123852);color:white}.download-center .section-heading{text-align:left}.download-center .section-heading>p{font-size:22px;color:#c1d7e7}.download-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.download-card{position:relative;border:1px solid #37576e;border-radius:8px;background:#1c415c;padding:26px 24px 16px}.card-index{position:absolute;right:14px;top:8px;font-size:11px;color:#bed7e7}.download-body{display:flex;gap:20px;align-items:start}.download-body>.icon{color:#d7efff;width:36px;height:36px;margin-top:4px}.download-body h3{font-size:18px;margin-bottom:9px}.download-body p{font-size:13px;line-height:1.9;color:#c7dbe9;min-height:50px}.download-card>a{display:flex;align-items:center;gap:10px;min-height:44px;font-size:13px;font-weight:700;color:var(--yellow);border-top:1px solid #426079;margin-top:20px;padding-top:9px}.download-card>a .icon{width:16px;height:16px}.download-card:focus-within{border-color:var(--yellow)}.download-card :focus-visible{outline-color:var(--yellow)}
.reading-grid{display:grid;grid-template-columns:350px 1fr;gap:90px;align-items:center}.reading-screen{width:290px;margin:auto;border:6px solid white;border-radius:16px;overflow:hidden;box-shadow:0 8px 28px #164f7020}.reading-screen>img{width:100%;height:auto}.section-pill{display:block;color:#007ab8;font-size:13px;font-weight:700;margin-bottom:16px}.reading-copy h2{font-size:36px}.reading-tagline{margin-top:16px;color:var(--muted)}.reading-steps{position:relative;margin-top:32px}.reading-steps::before{content:"";position:absolute;left:19px;top:20px;bottom:30px;width:1px;background:#aed9ee}.reading-steps details{position:relative;padding:0 0 24px 64px}.reading-steps summary{cursor:pointer;list-style:none}.reading-steps summary>b{position:absolute;left:0;top:2px;display:grid;place-items:center;width:40px;height:40px;border-radius:50%;background:#078ed2;color:white;font-size:13px}.reading-steps strong{display:block;font-size:20px}.reading-steps small{display:block;font-size:13px;color:var(--muted);margin-top:7px}.step-more{display:flex;align-items:center;gap:7px;font-size:12px;color:#0874aa;margin-top:9px}.step-more .icon{width:14px;height:14px}.reading-steps details[open] .step-more .icon{transform:rotate(45deg)}.reading-steps details>p{font-size:13px;color:var(--muted);padding-top:12px;margin-top:12px;border-top:1px solid var(--line)}
.news{background:linear-gradient(110deg,#009de6,#098bd4);color:white}.news>.container{display:grid;grid-template-columns:.7fr 1.3fr;gap:45px;align-items:center}.news .section-heading{text-align:left;margin:0}.news .section-heading>p{font-size:25px;font-weight:700;color:white;max-width:300px;margin-top:20px}.news-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:17px}.news-card{display:flex;gap:12px;background:white;color:var(--navy);border-left:4px solid #9ddfff;border-radius:5px;padding:22px 18px}.news-card>b{color:#007ebc;font-size:17px}.news-card h3{font-size:16px}.news-card p{font-size:12px;color:var(--muted);margin-top:8px}.reviews{padding:40px 0}.reviews .section-heading{text-align:left;margin-bottom:20px}.reviews h2{font-size:25px}.review-empty{display:flex;align-items:center;justify-content:center;gap:20px;border-radius:12px;min-height:115px;padding:25px;background:var(--ice);color:var(--muted)}.quote{font:60px/1 Georgia,serif;color:#73a6c4}.review-empty p{font-size:14px}
.closing{background:linear-gradient(115deg,#078fe0,#00a8ee);color:white;position:relative;overflow:hidden}.closing::after{content:"";position:absolute;width:600px;height:200px;right:-90px;top:-60px;border:2px solid #ffffff24;border-radius:50%;transform:rotate(-20deg);pointer-events:none}.closing-copy{display:grid;grid-template-columns:1fr auto;gap:6px 40px;align-items:center;padding:44px 0}.closing-copy h2{font-size:32px}.closing-copy p{font-size:14px;color:#e3f5ff}.closing-copy .button{grid-column:2;grid-row:1/3;min-width:170px}.site-footer{background:var(--navy);color:white;padding:30px 0}.footer-inner{display:flex;gap:30px;align-items:center;flex-wrap:wrap;justify-content:space-between}.footer-inner .brand{font-size:20px}.footer-inner .brand img{width:36px;height:36px}.footer-inner nav ul{display:flex;gap:22px;flex-wrap:wrap}.footer-inner nav a{display:block;font-size:12px;color:#d2e4ef;padding:10px 0}.footer-inner>p{font-size:12px;color:#adc8d9}.site-statistics{font-size:12px}
.lightbox{background:transparent;color:white;border:0;padding:0;width:min(94vw,1000px);max-width:1000px;max-height:94dvh;overflow:visible}.lightbox::backdrop{background:#061c2ce8;backdrop-filter:blur(6px)}.lightbox-inner{position:relative;display:flex;flex-direction:column;align-items:center;padding:48px 10px 0}.lightbox-image{width:auto;height:auto;max-height:76dvh;max-width:100%;object-fit:contain}.lightbox-close{position:absolute;right:0;top:0;width:44px;height:44px;border:1px solid #fff7;border-radius:50%;background:#fff2;color:white;display:grid;place-items:center}#lightbox-caption{padding-top:15px;font-size:13px;text-align:center}.status-message{position:fixed;bottom:25px;left:50%;transform:translate(-50%,20px);opacity:0;pointer-events:none;background:var(--navy);color:white;padding:12px 20px;border:1px solid #fff4;border-radius:5px;z-index:99;max-width:calc(100% - 32px);width:max-content;font-size:13px;transition:opacity .2s,transform .2s}.status-message.is-visible{opacity:1;transform:translate(-50%,0)}
@media(max-width:1199px){.header-inner{gap:15px}.primary-nav ul{gap:15px}.brand{font-size:21px}.hero-grid{min-height:530px;gap:15px}.hero-copy h1{font-size:64px}.hero-copy h2{font-size:26px}.hero-screen{width:210px}.hero-art{height:490px}.discovery-grid{gap:45px}.reading-grid{grid-template-columns:300px 1fr;gap:50px}.news>.container{grid-template-columns:1fr;gap:30px}.news .section-heading>p{max-width:none;font-size:18px}.news-card{padding:24px}.product-grid{gap:16px}.product-label h3{font-size:15px}}
@media(max-width:991px){:root{--header:68px}.container{width:calc(100% - 48px)}.section{padding:54px 0}.header-inner{flex-wrap:wrap;gap:0 12px}.brand{margin-right:auto}.menu-toggle{display:grid;place-items:center;order:3}.primary-nav{order:4;width:100%}.primary-nav ul{justify-content:center;flex-wrap:wrap;gap:0 24px}.primary-nav a{padding:15px 0}.primary-nav a[aria-current]::after{bottom:5px}.js .primary-nav:not(.is-open){display:none}.primary-nav.is-open{border-top:1px solid var(--line);padding:10px 0}.hero-copy h1{font-size:55px}.hero-copy h2{font-size:24px}.hero-description{font-size:15px}.hero-screen{width:175px}.hero-art{height:420px}.screen-one{left:0;top:30px}.screen-two{right:0;top:65px}.hero-grid{min-height:470px}.product-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.product-card{padding:18px}.product-label h3{font-size:18px}.discovery-grid{grid-template-columns:1fr;gap:24px}.discovery-copy h2,.lead{max-width:none}.discover-list summary small{font-size:13px}.download-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.reading-grid{grid-template-columns:240px 1fr;gap:30px}.reading-screen{width:235px}.reading-copy h2{font-size:30px}.footer-inner nav{width:100%}.closing-copy h2{font-size:27px}}
@media(max-width:767px){:root{--header:64px}.container{width:calc(100% - 36px)}.section{padding:42px 0}.brand{font-size:19px;gap:7px}.brand img{width:32px;height:32px;border-radius:7px}.header-inner{gap:0 7px}.header-download{padding:10px 15px;font-size:11px}.header-download .icon{display:none}.primary-nav.is-open ul{display:grid;grid-template-columns:repeat(3,1fr);gap:0 12px;text-align:center}.hero-grid{display:flex;flex-direction:column;gap:0;min-height:0}.hero-copy{text-align:center;padding:36px 0 20px;width:100%}.hero-copy .eyebrow{font-size:10px;margin-bottom:14px}.hero-copy h1{font-size:clamp(42px,11.5vw,66px);letter-spacing:-2px}.hero-copy h2{font-size:clamp(21px,5.8vw,30px);letter-spacing:-.8px;margin-top:15px}.hero-description{font-size:14px;max-width:370px;margin:16px auto 22px}.hero-copy .button{min-width:230px;font-size:16px;min-height:52px}.hero-art{width:100%;max-width:440px;height:425px}.hero-screen{width:48%;max-width:205px;border-radius:16px}.screen-one{top:20px;left:2%}.screen-two{top:35px;right:2%}.hero::after{top:55%;width:160%}h2{font-size:29px}.section-heading{margin-bottom:26px}.section-heading>p{font-size:13px}.product-grid{display:flex;flex-wrap:nowrap;gap:14px;overflow-x:auto;overflow-y:hidden;scroll-snap-type:x proximity;scroll-padding-inline:0;overscroll-behavior-x:contain;padding:3px 0 12px;max-width:100%;scrollbar-width:thin;scrollbar-color:#8bccef #eef8ff;-webkit-overflow-scrolling:touch}.product-card{flex:0 0 82%;min-width:0;scroll-snap-align:start;padding:14px}.product-card:hover{transform:none}.product-label{order:0;padding:0 0 15px;gap:10px}.product-label h3{font-size:17px}.product-label p{font-size:11px}.product-card .gallery-link{width:100%;aspect-ratio:360/640}.zoom-label{opacity:1;font-size:0;padding:6px}.gallery-controls{display:block;text-align:center;margin-top:8px}.gallery-dots{display:none;justify-content:center}.js .gallery-dots{display:flex}.gallery-dot{border:0;background:transparent;width:44px;height:44px;display:grid;place-items:center;padding:0}.gallery-dot::before{content:"";width:7px;height:7px;border-radius:50%;background:#c6dce8}.gallery-dot[aria-current]::before{background:#078acb;width:9px;height:9px}.gallery-controls p{font-size:12px;color:var(--muted)}.discovery-copy h2{font-size:30px;max-width:400px}.lead{font-size:14px;margin-top:14px}.discover-list{padding-left:40px}.discover-list::before{left:15px}.discover-list summary{padding:20px 15px;gap:13px}.discover-list summary>b{left:-40px;width:30px;height:30px}.discover-list summary strong{font-size:17px}.discover-list summary small{font-size:12px}.discover-list summary>.icon{width:25px;height:25px}.discover-list details>p{padding:0 18px 18px;font-size:12px}.download-center .section-heading>p{font-size:17px}.download-grid{grid-template-columns:1fr;gap:15px}.download-body p{min-height:0}.download-card{padding:25px 23px 16px}.reading-grid{display:flex;flex-direction:column;gap:30px}.reading-copy{order:0;width:100%}.reading-screen{order:1;width:min(290px,86%)}.reading-copy h2{font-size:29px}.reading-tagline{font-size:14px}.reading-steps{margin-top:25px}.reading-steps strong{font-size:18px}.reading-steps details{padding-left:57px}.news-grid{grid-template-columns:1fr;gap:14px}.news .section-heading>p{font-size:17px;margin-top:10px}.news-card{padding:23px 20px}.news-card h3{font-size:17px}.news-card p{font-size:13px}.review-empty{padding:22px 18px;gap:12px}.review-empty p{font-size:13px}.closing-copy{display:flex;flex-direction:column;text-align:center;gap:13px;padding:35px 0}.closing-copy h2{font-size:27px}.closing-copy p{font-size:13px}.closing-copy .button{margin-top:5px;min-width:220px}.footer-inner{gap:18px}.footer-inner nav ul{gap:3px 22px}.footer-inner>p{width:100%;border-top:1px solid #ffffff22;padding-top:15px}}
@media(max-width:479px){.hero-art{height:355px}.hero-screen{width:48%;padding:4px}.product-card{padding:12px}.product-label h3{font-size:16px}.product-label p{font-size:10px}.section-heading>p{font-size:12px}.discover-list summary{gap:10px}.discover-list summary>.icon{width:22px;height:22px}.discover-list summary strong{font-size:16px}}
@media(max-width:359px){.container{width:calc(100% - 28px)}.brand{font-size:17px}.brand img{width:28px;height:28px}.header-download{padding-inline:12px}.hero-art{height:310px}.hero-copy h2{font-size:21px}.hero-description{font-size:13px}.download-body{gap:14px}.discover-list summary>.icon:not(:last-child){display:none}.closing-copy h2{font-size:24px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}