@font-face{font-family:Be Vietnam Pro;src:url('assets/fonts/be-vietnam-pro-regular.ttf') format('truetype');font-weight:400;font-display:swap}
@font-face{font-family:Be Vietnam Pro;src:url('assets/fonts/be-vietnam-pro-semibold.ttf') format('truetype');font-weight:600;font-display:swap}
@font-face{font-family:Be Vietnam Pro;src:url('assets/fonts/be-vietnam-pro-bold.ttf') format('truetype');font-weight:700;font-display:swap}
:root{--bg:#fff;--ink:#10283f;--muted:#4e6478;--accent:#087f75;--line:#dde5eb;--band:#f1f5f8;--radius:8px;--space:24px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:28px}body{margin:0;color:var(--ink);background:var(--bg);font:400 16px/1.7 'Be Vietnam Pro',sans-serif}a{color:inherit;text-decoration:none}button{font:inherit}svg{display:block}a:focus-visible,button:focus-visible{outline:3px solid #087f75;outline-offset:5px}a:hover{color:var(--accent)}.container{width:min(1280px,90%);margin-inline:auto}.site-header{border-bottom:1px solid var(--line)}.nav{min-height:84px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:7px;font-size:25px;font-weight:700;letter-spacing:-1px;white-space:nowrap}.brand img{margin-right:4px;border-radius:8px}.brand span{color:var(--accent)}.nav-links{display:flex;align-items:center;gap:38px;font-weight:600}.button{display:inline-flex;align-items:center;justify-content:center;min-height:54px;padding:13px 24px;border:1px solid transparent;border-radius:var(--radius);background:var(--accent);color:white;font-size:15px;line-height:1.5;font-weight:600;text-align:center}.button:hover{background:#06685f;color:white}.button-small{min-height:44px;padding:10px 22px}.hero{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:46px;padding-block:50px 34px}h1,h2,h3,p,figure{margin:0}h1{font-size:clamp(30px,3.1vw,46px);line-height:1.3;letter-spacing:-1.7px;font-weight:700}.hero-copy>p{margin-top:22px;font-size:19px;line-height:1.7;color:var(--muted);max-width:610px}.hero-actions{display:flex;align-items:center;gap:26px;flex-wrap:wrap;margin-top:30px}.text-link{display:inline-flex;align-items:center;gap:10px;color:var(--accent);font-size:15px;font-weight:600}.text-link svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8}.product-figure{position:relative;overflow:hidden;border:1px solid #cddbe4;border-radius:var(--radius);background:var(--band);aspect-ratio:3/2}.product-figure>img{display:block;width:100%;height:100%;object-fit:cover}.product-figure figcaption{position:absolute;right:12px;bottom:10px;background:#f1f5f8ed;border-radius:4px;padding:2px 7px;font-size:12px;color:var(--muted)}.features{display:grid;grid-template-columns:repeat(3,1fr);padding-block:30px 58px;gap:36px}.features article+article{border-left:1px solid var(--line);padding-left:36px}.feature-icon{height:46px;width:46px;fill:none;stroke:var(--accent);stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round;margin-bottom:18px}.features h2{font-size:23px;line-height:1.4;letter-spacing:-.6px}.features p{margin-top:8px;color:var(--muted);line-height:1.75}.connection-band{background:var(--band);padding-block:34px 22px}section h2{font-size:32px;line-height:1.4;letter-spacing:-1px}section h2+p{color:var(--muted);margin-top:7px}.connection-flow{list-style:none;display:flex;justify-content:center;gap:0;padding:0;margin:28px auto 18px;max-width:960px}.connection-flow li{position:relative;flex:1;display:flex;align-items:center;flex-direction:column;gap:12px;font-weight:600;font-size:15px}.connection-flow li+li:before{content:'';position:absolute;width:38%;left:-19%;top:43px;height:1px;background:#8ea1af}.connection-flow svg{width:88px;height:88px;fill:none;stroke:var(--ink);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.connection-note{text-align:center;color:var(--muted);font-size:14px}.downloads{padding-block:34px 30px}.release-list{list-style:none;margin:20px 0 0;padding:0}.release{display:flex;align-items:center;gap:24px;padding:17px 8px;border-bottom:1px solid var(--line)}.release:last-child{border-bottom:0}.platform-symbol{width:48px;flex-shrink:0}.platform-symbol svg{width:42px;height:42px}.android{color:#5e993f}.android svg{fill:none;stroke:currentColor;stroke-width:2.7;stroke-linecap:round;stroke-linejoin:round}.windows svg{fill:#0085c8}.ubuntu svg{fill:none;stroke:#df4d0b;stroke-width:4}.ubuntu svg circle:not(:first-child){fill:#df4d0b;stroke:var(--bg);stroke-width:2}.release-info{flex:1}.release h3{font-size:18px;font-weight:600;line-height:1.5}.release p{font-size:14px;color:var(--muted)}.release .button{min-width:236px}.button.unavailable{background:#e9eef2;border-color:#d8e1e7;color:#526677;cursor:not-allowed}.site-footer{border-top:1px solid var(--line);padding-block:20px;font-size:14px;color:var(--muted)}.site-footer span{margin-inline:10px}.skip-link{position:absolute;z-index:10;top:-100px;left:16px;padding:10px;background:white}.skip-link:focus{top:10px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(min-width:1440px){.hero{gap:54px}.hero-copy{padding-bottom:6px}}
@media(max-width:1050px){.brand{font-size:22px}.hero{gap:28px}h1{font-size:34px;letter-spacing:-1px}.hero-copy>p{font-size:16px}.hero-actions{gap:18px}.features{gap:24px}.features article+article{padding-left:24px}.features h2{font-size:20px}.features p{font-size:14px}}
@media(max-width:720px){.container{width:90%}.nav{min-height:74px;gap:10px}.brand{font-size:19px;gap:4px;letter-spacing:-.6px}.brand img{width:28px;height:28px}.nav-links{gap:12px}.nav-links>a:first-child{display:none}.button-small{font-size:12px;padding:10px 12px;min-height:40px}.hero{grid-template-columns:1fr;padding-block:36px 12px;gap:28px}h1{font-size:clamp(28px,7vw,40px);line-height:1.35;letter-spacing:-1px}.hero-copy>p{font-size:16px;margin-top:18px}.hero-actions{margin-top:22px;gap:20px}.hero-actions .button{padding-inline:18px}.text-link{font-size:13px}.features{grid-template-columns:1fr;gap:24px;padding-block:24px 34px}.features article{display:grid;grid-template-columns:42px 1fr;column-gap:16px}.features article+article{border-left:0;padding-left:0;border-top:1px solid var(--line);padding-top:24px}.feature-icon{width:36px;height:36px;grid-row:span 2;margin-top:3px;margin-bottom:0}.features h2{font-size:21px}.features p{font-size:15px;margin-top:5px}section h2{font-size:26px;letter-spacing:-.7px}.connection-band{padding-block:28px 24px}.connection-band h2+p{font-size:15px}.connection-flow{margin-block:24px 18px}.connection-flow svg{width:60px;height:60px}.connection-flow li{font-size:11px;gap:8px;text-align:center;padding-inline:2px}.connection-flow li+li:before{top:30px;width:20%;left:-10%}.connection-note{font-size:12px}.downloads{padding-block:28px 20px}.downloads>p{font-size:15px}.release{gap:14px;flex-wrap:wrap;padding:20px 0}.release-info{min-width:180px}.platform-symbol{width:38px}.platform-symbol svg{width:34px;height:34px}.release .button{width:100%;min-width:0;min-height:48px;margin-left:52px}.site-footer{font-size:12px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
.play-store-icon{width:20px;height:22px;flex-shrink:0}.nav-links .button-small{gap:10px}
.language-picker{position:relative;font-size:13px;font-weight:400}.language-picker summary{cursor:pointer;padding:10px 12px;border:1px solid var(--line);border-radius:var(--radius);min-height:44px;display:flex;align-items:center;gap:10px}.language-picker summary:after{content:'';border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;width:6px;height:6px;transform:rotate(45deg);margin-top:-4px}.language-picker summary::-webkit-details-marker{display:none}.language-picker summary:focus-visible{outline:3px solid var(--accent);outline-offset:3px}.language-options{position:absolute;right:0;top:calc(100% + 8px);min-width:210px;padding:6px;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 8px 24px #10283f18;z-index:5;display:flex;flex-direction:column}.language-options a{padding:8px 12px;border-radius:4px;white-space:nowrap;font-size:14px}.language-options a:hover,.language-options a[aria-current=page]{background:var(--band);color:var(--accent)}html[lang=zh-Hans] body{font-family:'Be Vietnam Pro','Microsoft YaHei','PingFang SC','Noto Sans CJK SC',sans-serif}
@media(max-width:720px){.nav{flex-wrap:wrap;padding-block:14px;gap:12px}.nav-links{width:100%;justify-content:space-between;gap:10px}.language-picker summary{font-size:12px;padding:8px 10px}.hero-actions{align-items:flex-start}.hero-actions .button,.text-link{max-width:100%}.text-link{min-height:44px}.connection-flow li{overflow-wrap:anywhere}.brand{font-size:20px}}

.brand-group{display:flex;align-items:center;gap:14px;flex-wrap:wrap}.brand-play-link{display:inline-flex;align-items:center;justify-content:center;min-width:44px;min-height:44px;color:var(--accent)}.brand-play-link:hover{color:#06685f}

.platform-symbol img{display:block;width:42px;height:42px;object-fit:contain}.brand-play-link .play-store-icon{width:26px;height:28px;object-fit:contain}@media(max-width:720px){.platform-symbol img{width:34px;height:34px}}
.release:has(.release-variants){flex-wrap:wrap}.release-variants{list-style:none;margin:0 0 0 76px;padding:0;flex-basis:100%;min-width:0}.release-variants>li{border-top:1px solid var(--line);padding-block:18px}.release-version{color:var(--muted);margin-bottom:10px}.release-variants details{margin-top:12px;font-size:13px;overflow-wrap:anywhere}.release-variants summary{cursor:pointer;color:var(--accent);min-height:32px}.release-variants code{display:block;overflow-wrap:anywhere}.release-variants h4{margin:12px 0 4px}.release-variants details p{white-space:pre-wrap}.release-notice{color:var(--muted);font-size:14px;margin-top:16px}@media(max-width:720px){.release-variants{margin-left:52px}.release .release-variants .button{margin-left:0;width:100%;padding-inline:10px}}