:root{color-scheme:light;--ink:#0d2732;--teal:#007b73;--mint:#7de1d0;--muted:#53636a}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:25px}body{margin:0;background:#fff;color:var(--ink);font-family:Arial,Helvetica,sans-serif;font-size:16px;line-height:1.6}a{color:inherit;text-decoration:none}a:focus-visible{outline:3px solid #007b73;outline-offset:6px}a:hover{text-decoration:underline;text-underline-offset:5px}.wrap{width:min(1160px,calc(100% - 80px));margin-inline:auto}header{display:flex;align-items:center;justify-content:space-between;min-height:106px;border-bottom:1px solid #e5eaea}.brand{display:inline-flex;align-items:center;gap:9px;font-size:22px;font-weight:500;letter-spacing:-.6px}.brand b{margin-left:-4px}.brand img{border-radius:9px}nav{display:flex;align-items:center;gap:35px;font-size:14px;font-weight:600}.nav-download{border:1px solid #ced9da;padding:10px 18px;border-radius:7px}.nav-download span{margin-left:12px}.hero{display:grid;grid-template-columns:1.3fr 1fr;gap:80px;align-items:center;padding-block:65px 76px}.eyebrow{font-size:12px;letter-spacing:2px;font-weight:700;color:var(--teal);margin:0 0 21px}h1{font-size:clamp(42px,5vw,66px);letter-spacing:-3px;line-height:1.09;margin:0 0 26px;font-weight:750}h1 span{color:var(--teal)}.intro{font-size:19px;max-width:460px;line-height:1.7;color:var(--muted);margin-bottom:30px}.download{display:inline-flex;align-items:center;gap:15px;background:var(--ink);color:white;border-radius:9px;padding:12px 23px;line-height:1.15;box-shadow:0 5px 10px #0d273210}.download span{font-size:23px;font-weight:600}.download small{display:block;font-size:10px;letter-spacing:1.5px;margin-bottom:5px}.fine{font-size:12px;color:var(--muted);margin-top:13px}.hero-foot{margin-top:48px;padding-top:23px;border-top:1px solid #e1e9e8;display:flex;gap:22px;font-size:13px;color:var(--muted)}.preview{margin:0;justify-self:center;width:min(100%,326px)}.preview img{display:block;width:100%;height:auto;border-radius:18px;box-shadow:0 22px 55px #0d27321c}.preview figcaption{text-align:center;font-size:12px;color:var(--muted);margin-top:13px}.features{background:#f0f7f6;padding:65px 0 70px}.section-heading .eyebrow{margin-bottom:12px}h2{font-size:clamp(29px,3.2vw,39px);line-height:1.2;letter-spacing:-1.3px;margin:0 0 15px}.section-heading>p:last-child{color:var(--muted);margin:0}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:48px;margin-top:43px}.feature-grid article{border-top:1px solid #bbd5d1;padding-top:23px}.number{font-size:12px;letter-spacing:1.5px;color:var(--teal);font-weight:700}h3{font-size:22px;letter-spacing:-.5px;line-height:1.3;margin:17px 0 12px}.feature-grid p{color:var(--muted);margin:0}.details{display:grid;grid-template-columns:1fr 1fr;gap:80px;padding-block:75px}.details p:not(.eyebrow){margin-top:0;font-size:18px;color:var(--muted)}.text-link{color:var(--teal);font-size:14px;font-weight:bold}.text-link span{margin-left:12px}.support{background:var(--ink);color:white;border-radius:16px;padding:43px 48px;display:flex;align-items:center;justify-content:space-between;gap:40px}.support .eyebrow{color:var(--mint);margin-bottom:14px}.support h2{font-size:32px}.support p:last-child{color:#c4d3d7;max-width:580px;margin-bottom:0}.support-link{flex-shrink:0;background:var(--mint);color:var(--ink);border-radius:7px;padding:14px 23px;font-size:14px;font-weight:bold}.support-link span{margin-left:20px}footer{padding-block:35px;display:flex;align-items:center;justify-content:space-between;gap:20px}footer .brand{font-size:18px}footer p,footer>a:last-child{font-size:12px;color:var(--muted)}.skip{position:absolute;left:20px;top:-100px;background:white;padding:10px;z-index:10}.skip:focus{top:10px}@media(max-width:900px){.hero{gap:35px}h1{letter-spacing:-2px}.hero-foot{display:block}.hero-foot span{display:block}.feature-grid{gap:25px}.support{padding:35px;gap:25px}.details{gap:35px}}@media(max-width:640px){.wrap{width:calc(100% - 40px)}header{min-height:85px}.brand{font-size:19px}.brand img{width:34px;height:34px}nav{gap:17px}nav>a:first-child,.nav-download{display:none}.hero{grid-template-columns:1fr;padding-block:42px;gap:35px}.hero-copy{max-width:500px}h1{font-size:46px}.intro{font-size:18px}.hero-foot{margin-top:25px;display:flex;gap:14px;font-size:12px}.preview{width:280px}.features{padding-block:45px}.feature-grid{grid-template-columns:1fr;gap:30px;margin-top:30px}.details{grid-template-columns:1fr;gap:15px;padding-block:45px}.support{display:block;padding:29px 25px}.support-link{display:inline-block;margin-top:25px}.support h2{font-size:29px}footer{flex-wrap:wrap;padding-block:28px}footer p{order:3;width:100%;margin:0}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
/* Locale navigation: native disclosure works without JavaScript. */
.language-menu{position:relative;font-size:14px;letter-spacing:0;flex-shrink:0}.language-menu summary{cursor:pointer;padding:10px 4px;list-style-position:inside}.language-options{position:absolute;right:0;top:100%;min-width:170px;max-height:320px;overflow-y:auto;padding:8px;background:#fff;border:1px solid #ced9da;border-radius:8px;box-shadow:0 8px 25px #0d273218;z-index:5}.language-options a{display:block;padding:10px 12px;border-radius:4px}.language-options a[aria-current=page]{background:#e5f5f1;color:#006c64}.language-menu summary:focus-visible{outline:3px solid #007b73;outline-offset:4px}html:lang(zh-Hans) body{font-family:Arial,"Microsoft YaHei","PingFang SC",sans-serif}html:lang(zh-Hans) h1,html:lang(zh-Hans) h2,html:lang(zh-Hans) h3{letter-spacing:0}html:lang(zh-Hans) h1{line-height:1.3}html:lang(zh-Hans) .eyebrow{letter-spacing:1px}nav{gap:24px}@media(max-width:760px){nav .nav-download{display:none}nav{gap:18px}}@media(max-width:640px){nav{gap:13px}.language-menu{font-size:14px}html:lang(zh-Hans) h1{font-size:40px}}