@charset "UTF-8";
:root{--ink:#202b29;--muted:#75807c;--green:#087c65;--green-dark:#075a4b;--pale:#edf6f2;--line:#e6ebe8;--bg:#fff;--radius:16px;--font:"Inter","PingFang SC","Microsoft YaHei",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:104px}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,input,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default}a,button{touch-action:manipulation}button{color:inherit}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #12a383;outline-offset:5px;border-radius:5px}img{display:block;max-width:100%}h1,h2,h3,p{margin-top:0}h1,h2,h3{letter-spacing:-.035em;line-height:1.4}h1{font-size:clamp(32px,3.2vw,44px);font-weight:750}h2{font-size:28px;font-weight:700}h3{font-size:19px;font-weight:650}p{line-height:1.85}button{border:0;background:none}.icon{height:21px;width:21px;flex-shrink:0;vertical-align:middle}.container{width:min(1240px,calc(100% - 80px));margin-inline:auto}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}[hidden]{display:none!important}.skip-link{position:fixed;top:8px;left:16px;background:var(--green);color:white;padding:12px 20px;z-index:100;transform:translateY(-150%)}.skip-link:focus{transform:none}.button{display:inline-flex;align-items:center;justify-content:center;gap:10px;background:var(--green);color:#fff;border:1px solid var(--green);padding:11px 19px;border-radius:8px;font-size:14px;font-weight:600;line-height:1.7;transition:background .18s,transform .18s;min-height:46px}.button:hover{background:var(--green-dark);border-color:var(--green-dark);transform:translateY(-1px)}.button .icon{width:18px;height:18px}.button.secondary{background:#fff;color:var(--green);border-color:#d9e6e0}.button.secondary:hover{background:var(--pale)}.button.full{width:100%}.text-link{display:inline-flex;align-items:center;gap:10px;color:var(--green);font-weight:600;font-size:14px}.text-link .icon{width:18px;height:18px;transition:transform .18s}.text-link:hover .icon{transform:translateX(3px)}.eyebrow{display:block;font-size:12px;letter-spacing:.1em;color:var(--green);font-weight:650;margin-bottom:9px}.muted{color:var(--muted)}.small{font-size:13px}.plain-button{font-size:14px;display:inline-flex;gap:8px;align-items:center;padding:8px;color:var(--muted)}
.site-header{height:88px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.97);position:sticky;top:0;z-index:30}.header-inner{display:flex;align-items:center;height:100%;gap:26px}.brand{display:inline-flex;align-items:center;gap:11px;flex-shrink:0;font-size:21px;line-height:1.25;font-weight:800;letter-spacing:-.04em}.brand small{display:block;color:#7e8984;font-size:10px;letter-spacing:.19em;font-weight:500;margin-top:5px}.brand-mark{background:var(--green);color:white;border-radius:11px;width:43px;height:43px;display:grid;place-items:center}.brand-mark .icon{width:26px;height:26px}.main-nav{display:flex;align-items:center;justify-content:center;gap:29px;flex:1;height:100%}.main-nav a{display:flex;align-items:center;font-size:14px;color:#5b6660;height:100%;position:relative;white-space:nowrap;font-weight:500}.main-nav a[aria-current],.main-nav a:hover{color:var(--green)}.main-nav a[aria-current]:after{content:"";height:3px;border-radius:2px;background:var(--green);position:absolute;left:0;right:0;bottom:0}.header-search{display:flex;padding:7px}.header-download{padding:9px 15px;white-space:nowrap;min-height:41px}.menu-toggle{display:none;padding:8px}
.home-intro{padding:43px 0 27px;display:flex;justify-content:space-between;align-items:center;gap:30px}.home-intro h1{font-size:39px;margin:0 0 10px;letter-spacing:-.035em}.home-intro h1 em{font-style:normal;color:var(--green)}.home-intro p{font-size:14px;color:#727d77;margin:0}.home-intro .eyebrow{font-size:12px;letter-spacing:.13em;margin-bottom:8px}.search-form{display:flex;align-items:center;gap:12px;border:1px solid var(--line);border-radius:9px;background:#f7f9f8;padding:5px 8px 5px 17px;width:352px;max-width:100%;min-height:49px}.search-form>.icon{color:#8b9690;width:18px;height:18px}.search-form input{border:0;outline:none;min-width:0;width:100%;background:transparent;font-size:13px;color:var(--ink)}.search-form input::placeholder{color:#86918b}.search-form:focus-within{border-color:var(--green);box-shadow:0 0 0 3px #087c6510}.search-form button{display:grid;place-items:center;width:34px;height:34px;flex-shrink:0;background:#fff;border:1px solid var(--line);border-radius:6px;color:var(--green)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.95fr) minmax(0,1fr);gap:22px}.feature-cover{position:relative;min-height:374px;border-radius:var(--radius);overflow:hidden;background:#214a43;color:white;isolation:isolate}.feature-cover>img{width:100%;height:100%;position:absolute;object-fit:cover;object-position:center 58%;z-index:-3;transition:transform .6s}.feature-cover:hover>img{transform:scale(1.035)}.cover-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(4,32,28,.7),rgba(9,31,28,.2) 74%),linear-gradient(0deg,rgba(3,32,25,.2),transparent 55%);z-index:-1}.cover-content{padding:35px 37px 34px}.cover-tag{font-size:12px;font-weight:500;display:inline-block;letter-spacing:.04em;padding:4px 10px;border:1px solid #ffffff55;border-radius:5px;background:#ffffff12;margin-bottom:24px}.cover-content h2{font-size:37px;line-height:1.45;letter-spacing:.015em;margin-bottom:14px;font-weight:650}.cover-content p{font-size:13px;line-height:1.9;color:#ebf2ef;margin-bottom:23px}.cover-link{display:inline-flex;align-items:center;gap:20px;font-size:13px;font-weight:600}.cover-link>.icon{width:30px;padding:5px;border:1px solid #ffffff66;border-radius:50%;height:30px}.cover-caption{position:absolute;right:23px;bottom:24px;writing-mode:vertical-rl;font-size:12px;letter-spacing:.2em;color:#fff9}.hero-side{display:grid;grid-template-rows:1fr auto;gap:18px}.tvbox-feature{background:#edf5ed;border-radius:var(--radius);padding:26px 29px;position:relative}.tile-top{display:flex;justify-content:space-between;align-items:flex-start}.tile-top>.icon{width:37px;height:37px;stroke-width:1;color:#347b57}.tile-top .eyebrow{font-size:12px;letter-spacing:.13em;margin-top:3px}.tvbox-feature h2{font-size:29px;line-height:1.5;font-weight:600;margin:9px 0 10px;color:#234c3a}.tvbox-feature p{font-size:13px;color:#6a7d6d;line-height:1.85;margin-bottom:16px}.tvbox-feature .text-link{font-size:13px;color:#397257}.live-feature{display:flex;align-items:center;padding:23px 22px;gap:15px;border:1px solid var(--line);border-radius:var(--radius);background:#fbfcfb}.live-symbol{display:grid;place-items:center;color:#497260;background:#edf3ef;width:46px;height:46px;border-radius:10px;flex-shrink:0}.live-symbol .icon{height:24px;width:24px}.live-feature .eyebrow{font-size:12px;letter-spacing:.12em;margin-bottom:4px}.live-feature h3{font-size:16px;margin:0 0 3px;letter-spacing:0}.live-feature p{font-size:12px;color:var(--muted);margin:0}.live-feature>.icon{margin-left:auto;width:17px}.category-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));margin-top:22px;padding:21px 0;border:1px solid var(--line);border-radius:12px}.category-strip>a{display:flex;align-items:center;gap:16px;padding:2px 25px;position:relative}.category-strip>a:not(:last-child){border-right:1px solid var(--line)}.category-icon{width:42px;height:42px;border-radius:10px;background:#f2f7f4;color:#547b65;display:grid;place-items:center;flex-shrink:0}.category-strip strong{display:block;font-size:14px;font-weight:600}.category-strip small{display:block;font-size:12px;color:var(--muted);margin-top:3px}.category-strip>a>.icon{margin-left:auto;color:#a5b0a9;width:15px;height:15px}.category-strip a:hover strong{color:var(--green)}
.section{padding-block:45px}.section-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:23px}.section-heading h2{font-size:25px;margin:0}.section-heading .eyebrow{font-size:12px;letter-spacing:.035em;margin-bottom:7px;color:var(--muted);font-weight:400}.section-heading>.text-link{font-size:13px;padding-bottom:3px}.app-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:19px}.app-card{border:1px solid var(--line);border-radius:12px;background:#fff;min-width:0;transition:border-color .18s,box-shadow .18s,transform .18s;display:flex;flex-direction:column}.app-card:hover{border-color:#b5d1c4;box-shadow:0 9px 25px #153d2610;transform:translateY(-3px)}.app-main{display:block;padding:23px 21px 18px;flex:1}.app-card-top{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:17px}.app-icon{width:52px;height:52px;flex-shrink:0;display:grid;place-items:center;border-radius:13px;font-size:27px;font-weight:700;line-height:1;color:#fff;letter-spacing:-.07em;position:relative}.app-icon.blue{background:#158ebd}.app-icon.green{background:#1a715e;font-size:20px;letter-spacing:-.08em}.app-icon.orange{background:#f1a137}.app-icon.purple{background:#7763ad}.app-icon.indigo{background:#5f6db3;font-size:21px}.app-icon.teal{background:#2e8a95}.app-icon.mint{background:#4b9475}.app-icon.rose{background:#b6657d}.tag{font-size:12px;color:#818c85;border:1px solid #e9edea;border-radius:4px;padding:2px 6px;white-space:nowrap}.app-card h3{font-size:19px;margin:0 0 8px;letter-spacing:-.025em}.app-card p{font-size:13px;line-height:1.8;color:#7b857f;margin:0}.app-card-bottom{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:13px 20px;border-top:1px solid #eef1ef}.app-card-bottom>span{font-size:12px;color:#859087}.app-card-bottom>a{display:flex;align-items:center;gap:8px;font-size:12px;font-weight:500;color:var(--green)}.app-card-bottom .icon{width:15px;height:15px}.source-note{display:flex;justify-content:center;align-items:center;gap:8px;margin-top:22px;color:#8c958f;font-size:12px}.source-note>.icon{width:15px;height:15px}
.guide-section{background:#f7f9f7;padding:38px 0 42px;border-block:1px solid #edf1ed}.guide-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.guide-card{display:block;overflow:hidden;border-radius:12px;background:#fff;border:1px solid var(--line);transition:transform .18s,border-color .18s}.guide-card:hover{transform:translateY(-3px);border-color:#b3cbbc}.guide-art{height:130px;position:relative;display:flex;align-items:center;padding:27px 25px;gap:20px;overflow:hidden;background:#e8efe7;color:#466c50}.guide-art .icon{width:52px;height:52px;stroke-width:1.2;margin-left:auto}.guide-art-number{font-size:69px;line-height:1;font-weight:350;letter-spacing:-.09em;opacity:.32}.guide-art>span:last-child{writing-mode:vertical-rl;font-size:12px;letter-spacing:.2em;opacity:.7}.guide-art.blue{background:#eaf0f4;color:#48748d}.guide-art.purple{background:#efedf4;color:#7c6f9b}.guide-art.orange{background:#f5eee3;color:#8f7856}.guide-art.teal{background:#e4f1ef;color:#4e8075}.guide-art.indigo{background:#e9edf7;color:#6e7baf}.guide-art.mint{background:#e7f2eb;color:#5f9876}.guide-art.rose{background:#f3e8ec;color:#ac7183}.guide-card-content{padding:22px 22px 18px}.guide-card-content .eyebrow{font-size:12px;letter-spacing:.03em;margin-bottom:9px}.guide-card h3{font-size:17px;line-height:1.7;margin-bottom:9px;letter-spacing:0}.guide-card p{font-size:13px;color:var(--muted);margin-bottom:19px}.read-time{display:flex;align-items:center;gap:5px;font-size:12px;color:#939b95}.read-time>.icon{width:13px;height:13px}.read-time>span{display:flex;align-items:center;gap:6px;margin-left:auto;color:#64796d;font-size:12px}.read-time>span>.icon{width:14px;height:14px}.discovery-section{display:grid;grid-template-columns:1fr 1.85fr;gap:70px;padding-block:47px}.discovery-copy h2{font-size:28px;line-height:1.55;margin-bottom:13px}.discovery-copy p{font-size:13px;color:var(--muted);line-height:2;margin-bottom:18px}.discovery-copy .eyebrow{font-size:12px;color:var(--muted);font-weight:400}.discovery-list{display:grid;grid-template-columns:1fr 1fr;gap:0 25px}.discovery-list>a{display:flex;align-items:center;gap:13px;padding:20px 0;border-bottom:1px solid var(--line);min-width:0}.discovery-list .app-icon{width:44px;height:44px;font-size:23px;border-radius:10px}.discovery-list strong{display:block;font-size:14px;font-weight:600}.discovery-list small{display:block;font-size:12px;color:var(--muted);margin-top:2px}.discovery-list a>.icon{width:16px;height:16px;margin-left:auto;color:var(--muted)}.discovery-category{display:none}.start-banner{padding:26px 30px;background:#eff5f1;border:1px solid #e3ede6;display:flex;gap:22px;align-items:center;border-radius:12px;margin-bottom:48px}.banner-icon{color:var(--green);display:grid;place-items:center;width:54px;height:54px;background:#fff;border-radius:12px}.banner-icon>.icon{width:29px;height:29px}.start-banner h2{font-size:19px;margin:0 0 4px}.start-banner p{font-size:13px;color:var(--muted);margin:0}.start-banner>.button{margin-left:auto;font-size:13px;min-height:43px}
.site-footer{border-top:1px solid var(--line);background:#fafbfa}.footer-top{display:flex;align-items:center;justify-content:space-between;padding-top:31px;padding-bottom:24px}.footer-top .brand{font-size:19px}.footer-top .brand-mark{width:37px;height:37px;border-radius:9px}.footer-top .brand-mark>.icon{width:23px;height:23px}.footer-top p{font-size:12px;color:#87918a;margin:15px 0 0}.footer-links{display:flex;gap:28px;font-size:13px;color:#69766d}.footer-links a:hover{color:var(--green)}.footer-bottom{display:flex;justify-content:space-between;border-top:1px solid var(--line);padding:18px 0 22px;font-size:12px;color:#929b95;gap:20px}
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13px;gap:4px}.app-card-bottom>span{font-size:12px}.app-card-bottom>a{font-size:12px;gap:5px}.app-card-bottom .icon{width:13px;height:13px}.guide-grid{grid-template-columns:1fr;gap:17px}.guide-art{height:120px}.guide-section .guide-grid>.guide-card:last-child{display:block}.guide-section .guide-grid>.guide-card:last-child .guide-art{min-height:0;height:120px}.guide-card h3{font-size:18px}.guide-card p{font-size:14px}.guide-card-content{padding:21px}.guide-card .eyebrow{font-size:12px}.read-time{font-size:12px}.read-time>span{font-size:12px}.discovery-list{grid-template-columns:1fr;gap:0}.discovery-list>a{padding:18px 0;gap:15px}.discovery-list strong{font-size:15px}.discovery-category{display:block;margin-left:auto;font-size:12px;color:var(--muted)}.discovery-list a>.icon{margin-left:10px}.discovery-copy h2{font-size:24px}.start-banner{padding:23px;gap:12px}.start-banner .banner-icon{display:none}.start-banner h2{font-size:17px}.start-banner p{font-size:12px}.start-banner>.button{margin:5px 0 0;font-size:12px}.footer-top{padding-top:25px}.footer-links{gap:21px;font-size:12px}.footer-bottom{font-size:12px}.breadcrumbs{font-size:12px;padding-top:19px}.page-heading h1{font-size:29px;line-height:1.5}.page-heading p{font-size:14px}.page-section{padding-top:25px}.filter-tabs button{font-size:12px;padding:8px 10px}.info-note{padding:17px;gap:10px}.info-note p{font-size:13px}.info-note>.icon{width:18px;height:18px}.app-detail-header{gap:16px;align-items:flex-start}.app-detail-header .app-icon-large{width:66px;height:66px;font-size:34px!important;border-radius:16px}.app-detail-header h1{font-size:28px;margin-top:3px}.app-detail-header .eyebrow{font-size:12px;letter-spacing:.03em}.app-detail-header p{font-size:13px}.feature-pills{gap:7px;margin-bottom:25px}.feature-pills>span{font-size:12px;padding:5px 7px}.spec-table{font-size:13px}.spec-table>div{grid-template-columns:100px 1fr}.spec-table dt,.spec-table dd{padding:12px}.article-section h2{font-size:22px}.article-section>p{font-size:15px}.steps p{font-size:14px}.steps>li{gap:12px}.detail-sidebar{grid-template-columns:1fr;gap:22px}.download-panel{padding:25px}.article-header h1{font-size:28px;line-height:1.6}.article-lead{font-size:15px}.article-byline{gap:10px;font-size:12px}.article-byline time{font-size:12px}.article-body h2{font-size:21px}.article-body p{font-size:16px;line-height:2}.article-end{gap:9px}.article-end .text-link,.plain-button{font-size:12px;gap:6px}.plain-button .icon{width:15px}.topic-hero{padding:25px;display:block}.topic-symbol{display:none}.topic-hero .page-heading h1{font-size:32px}.topic-hero .page-heading p{font-size:14px}.topic-hero .text-link{margin-left:15px}.three-steps>a{padding:22px}.three-steps p{font-size:13px}.live-intro{padding:24px}.live-intro h2{font-size:25px}.live-intro p{font-size:14px}.live-options{gap:8px}.live-options>span{font-size:12px;padding:9px 10px;gap:6px}.channel-card{padding:23px;column-gap:15px;grid-template-columns:1fr 1.15fr}.channel-logo{font-size:25px}.channel-card h3{font-size:18px}.channel-card p{font-size:12px}.channel-card .button{font-size:12px;padding:8px;gap:7px}.channel-card .button .icon{width:14px;height:14px}.channel-label{top:25px}.search-result h2{font-size:18px}.search-result p{font-size:14px}.search-large input{font-size:14px}.text-page h2{font-size:22px}.not-found h1{font-size:27px}.tutorial-list>a{padding:20px;gap:15px}.tutorial-list strong{font-size:15px}.tutorial-list small{font-size:12px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

/* Readable controls and prose at every width. */
.main-nav a,.filter-tabs button,.app-card-bottom>a,.text-link,.button,.guide-card-content .eyebrow,.footer-links,.sidebar-links a,.toc a{font-size:max(14px,.82rem)}
.app-card p,.guide-card p,.home-intro p,.discovery-copy p,.start-banner p,.tvbox-feature p{font-size:14px}
.app-card-top{flex-wrap:wrap}
@media(max-width:520px){.app-card-bottom{flex-wrap:wrap;gap:7px}.app-card-bottom>a{font-size:13px}.section-heading>.text-link{font-size:13px}.category-strip small{font-size:12px}.category-strip>a{padding-inline:12px}.category-strip strong{font-size:14px}.topic-hero .text-link{margin:12px 0 0;display:flex}.app-card p{font-size:14px}.guide-card p{font-size:15px}.brand small{font-size:9px}}