:root{--blue:#0064e0;--ink:#10213c;--muted:#64748b;--line:#dce6f2;--pale:#f2f7fe;color-scheme:light;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB",sans-serif;font-size:16px;color:var(--ink);background:#fff;scroll-behavior:smooth;scroll-padding-top:100px}*{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}img{display:block;max-width:100%;height:auto}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--blue);outline-offset:5px}a:hover{color:var(--blue)}[hidden]{display:none!important}.wrap{width:min(1160px,calc(100% - 80px));margin-inline:auto}.skip-link{position:fixed;top:-80px;left:20px;z-index:50;background:#fff;padding:12px}.skip-link:focus{top:12px}.header{width:min(1320px,calc(100% - 64px));margin:auto;min-height:96px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:8px;font-size:24px;font-weight:700;letter-spacing:-.8px}.brand img{flex:none}.header nav{display:flex;gap:34px;font-size:15px;font-weight:500}.nav-download{border:1px solid var(--line);padding:11px 20px;border-radius:100px;font-size:14px;font-weight:600}.nav-download:hover{background:var(--pale)}.hero{display:grid;grid-template-columns:1.1fr 1fr;align-items:center;min-height:660px;gap:24px;padding-block:50px 90px}.eyebrow{font-size:14px;font-weight:600;letter-spacing:.02em;color:var(--blue);margin:0 0 26px}.eyebrow span{font-size:12px;letter-spacing:.12em;border-left:1px solid #b1c8e4;margin-left:14px;padding-left:14px}h1{font-size:clamp(58px,6.8vw,92px);font-weight:750;line-height:1.17;letter-spacing:-.055em;margin:0 0 28px}h1 span{color:var(--blue)}.hero-description{font-size:20px;line-height:1.85;color:var(--muted);margin:0}.hero-actions{display:flex;align-items:center;flex-wrap:wrap;gap:25px;margin-top:32px}.button{display:inline-flex;justify-content:center;align-items:center;gap:10px;min-height:54px;padding:15px 25px;border-radius:13px;font-weight:600;font-size:16px;transition:background .2s,transform .2s}.button:hover{transform:translateY(-2px)}.primary{background:var(--blue);color:#fff;box-shadow:0 7px 20px #0064e01c}.primary:hover{background:#004fbe;color:#fff}.button svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.text-link{font-size:15px;font-weight:500;border-bottom:1px solid #aec4df;padding-bottom:3px}.requirements{margin-top:24px;color:var(--muted);font-size:13px;line-height:1.8}.requirements span{padding:0 7px}.hero-art{position:relative;align-self:center}.hero-art img{width:100%;filter:drop-shadow(0 30px 35px #17417413)}.art-caption{display:block;text-align:center;font-size:14px;letter-spacing:.08em;color:var(--muted);margin-top:-5px}.format-ribbon{border-block:1px solid var(--line);background:#fbfdff}.format-ribbon .wrap{display:flex;align-items:center;justify-content:space-between;padding-block:27px;gap:24px}.format-ribbon span{font-size:14px;color:var(--muted)}.format-ribbon .wrap>div{font-size:20px;font-weight:650;letter-spacing:.03em}.format-ribbon i{font-style:normal;color:#bed0e6;padding:0 19px;font-weight:300}.overview{display:grid;grid-template-columns:1fr 1fr;gap:100px;align-items:center;padding-block:130px 80px}h2{font-size:44px;letter-spacing:-.04em;line-height:1.3;margin:0 0 24px;font-weight:700}.overview-copy>p:not(.eyebrow){color:var(--muted);font-size:17px;line-height:1.9;max-width:380px}.steps{list-style:none;padding:0;margin:40px 0 0}.steps li{display:flex;gap:20px;padding:18px 0;align-items:start}.steps li>span{font-size:14px;color:var(--blue);line-height:24px;border:1px solid #d4e5fc;background:#f7faff;width:36px;height:36px;display:grid;place-items:center;border-radius:50%;flex:none}.steps h3{font-size:18px;margin:0 0 6px;font-weight:600}.steps p{font-size:15px;line-height:1.7;color:var(--muted);margin:0}.app-preview{border:1px solid #e2eaf4;border-radius:25px;background:#fff;overflow:hidden;box-shadow:0 24px 65px #10213c0d}.preview-toolbar{display:flex;align-items:center;justify-content:space-between;padding:16px 18px;border-bottom:1px solid #edf1f7;gap:12px}.preview-toolbar>span{font-size:13px;color:var(--muted)}.theme-switch,.format-switch{display:flex;padding:3px;border-radius:100px;background:#edf3fb;gap:3px}.theme-switch button,.format-switch button{border:0;background:transparent;border-radius:100px;color:var(--muted);padding:8px 13px;font-size:14px;white-space:nowrap}.theme-switch button[aria-pressed=true],.format-switch button[aria-pressed=true]{background:#fff;color:var(--blue);box-shadow:0 2px 7px #213c6010}.app-preview>img{width:100%;background:#fff}.benefits{display:grid;grid-template-columns:repeat(3,1fr);gap:42px;padding-block:35px 110px}.benefits article{border-top:1px solid var(--line);padding-top:24px}.feature-number{font-size:13px;letter-spacing:.08em;color:var(--blue);display:block;margin-bottom:21px}.benefits h3{font-size:23px;letter-spacing:-.02em;margin:0 0 15px}.benefits p{font-size:16px;line-height:1.85;color:var(--muted);margin:0}.formats-section{background:var(--pale);padding-block:95px}.section-heading{display:flex;justify-content:space-between;align-items:center;gap:24px;margin-bottom:28px}.section-heading .eyebrow{margin-bottom:16px}.section-heading h2{margin:0}.format-switch{background:#e0eafa;flex:none}.format-switch button{padding:11px 19px}.format-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:#dce7f5;border:1px solid #dce7f5;border-radius:18px;overflow:hidden}.format-grid article{background:#ffffffcf;padding:30px}.format-grid h3{font-size:24px;color:var(--blue);margin:0 0 12px;letter-spacing:-.03em}.format-grid article[data-format=STREAM] h3{font-size:18px;line-height:1.6}.format-grid p{font-size:15px;line-height:1.8;color:var(--muted);margin:0}.format-note{font-size:14px;line-height:1.8;color:var(--muted);margin:22px 0 0}.faq{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;padding-block:110px}.faq .eyebrow{margin-bottom:18px}.faq-list{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line);padding-block:21px}summary{list-style:none;font-size:17px;font-weight:550;cursor:pointer;position:relative;padding-right:36px;line-height:1.7}summary::-webkit-details-marker{display:none}summary::after{content:'+';position:absolute;right:5px;top:0;font-size:24px;font-weight:300;color:var(--blue)}details[open] summary::after{content:'−'}details p{font-size:16px;line-height:1.9;color:var(--muted);margin:16px 30px 0 0}.download{display:flex;align-items:center;gap:65px;background:#eaf3ff;border:1px solid #d9e8fc;border-radius:28px;padding:50px 60px;margin-bottom:80px}.download-mark{width:240px;flex:none}.download .eyebrow{margin-bottom:16px}.download h2{font-size:36px;margin-bottom:15px}.download p:not(.eyebrow){color:var(--muted);font-size:15px;line-height:1.8}.download .button{margin-top:9px}.download-links{display:flex;gap:24px;font-size:14px;margin-top:20px}.download-links a{border-bottom:1px solid #adc4e1;padding-bottom:3px}.download-note{font-size:13px!important;margin-bottom:0}.footer{display:flex;align-items:center;gap:30px;justify-content:space-between;padding:25px 0 35px;border-top:1px solid var(--line)}.footer .brand{font-size:21px}.footer>p{font-size:14px;color:var(--muted)}.footer>div{display:flex;gap:23px;font-size:14px;color:var(--muted)}
@media(min-width:1400px){.hero{min-height:700px}}@media(max-width:1000px){.wrap{width:calc(100% - 56px)}.hero{min-height:570px;padding-bottom:65px;gap:0}h1{font-size:68px}.hero-description{font-size:18px}.overview{gap:50px;padding-top:95px}h2{font-size:36px}.benefits{gap:26px}.format-ribbon i{padding:0 10px}.download{padding:40px;gap:25px}.download-mark{width:200px}}
@media(max-width:720px){.wrap{width:calc(100% - 40px)}.header{width:calc(100% - 28px);min-height:80px;gap:12px}.header .brand{font-size:22px}.header nav{display:none}.nav-download{padding:10px 14px;font-size:13px}.hero{grid-template-columns:1fr;padding-block:40px 44px;gap:16px;min-height:0}.hero .eyebrow{font-size:13px;margin-bottom:23px}h1{font-size:clamp(54px,12vw,78px);line-height:1.18;margin-bottom:23px}.hero-description{font-size:17px;line-height:1.9}.hero-actions{gap:20px;margin-top:27px}.button{font-size:15px;padding:14px 20px}.requirements{font-size:12px;margin-top:19px}.hero-art{width:min(390px,100%);margin:auto}.art-caption{margin-top:-8px}.format-ribbon .wrap{display:block;padding-block:24px}.format-ribbon span{display:block;margin-bottom:12px}.format-ribbon .wrap>div{font-size:16px}.format-ribbon i{padding:0 7px}.overview{grid-template-columns:1fr;gap:34px;padding-block:65px 45px}h2{font-size:34px}.overview-copy>p:not(.eyebrow){max-width:none;font-size:16px}.steps{margin-top:25px}.steps li{padding:14px 0}.app-preview{width:min(420px,100%);margin:auto;border-radius:20px}.preview-toolbar{padding:13px}.preview-toolbar>span{font-size:12px}.benefits{grid-template-columns:1fr;gap:30px;padding-block:25px 60px}.benefits article{padding-top:22px}.feature-number{margin-bottom:14px}.benefits h3{font-size:23px}.formats-section{padding-block:60px}.section-heading{display:block;margin-bottom:26px}.format-switch{width:max-content;margin-top:24px}.format-grid{grid-template-columns:repeat(2,1fr);border-radius:15px}.format-grid article{padding:23px 18px}.format-grid h3{font-size:22px}.format-grid p{font-size:14px}.format-grid article[data-format=STREAM] h3{font-size:16px}.faq{grid-template-columns:1fr;gap:25px;padding-block:60px}.faq h2{margin-bottom:0}.faq .eyebrow{margin-bottom:15px}summary{font-size:16px}details p{font-size:15px;margin-right:10px}.download{display:block;text-align:center;padding:22px 22px 32px;margin-bottom:45px;border-radius:22px}.download-mark{width:165px;margin:0 auto 10px}.download h2{font-size:29px}.download .eyebrow{font-size:13px}.download-links{justify-content:center}.footer{flex-wrap:wrap;gap:10px 20px;padding-bottom:28px}.footer>p{margin:0}.footer>div{width:100%;padding-top:12px;gap:23px}}
@media(prefers-reduced-motion:reduce){:root{scroll-behavior:auto}*{transition:none!important}}

/* Shared navigation and supporting pages. */
.header nav{gap:24px}
.header nav a[aria-current=page]{color:var(--blue)}
.header nav a{padding-block:12px}
.footer>div{flex-wrap:wrap}
.page-intro{padding-block:65px 58px;border-bottom:1px solid var(--line);margin-bottom:50px}
.page-intro .eyebrow{margin-bottom:20px}
.page-intro h1{font-size:clamp(42px,5vw,64px);line-height:1.22;letter-spacing:-.04em;margin-bottom:22px}
.page-description{font-size:18px;line-height:1.9;color:var(--muted);margin:0}
.page-intro>.text-link{display:inline-block;margin-top:24px}
.feedback-layout{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:65px;margin-bottom:90px;align-items:start}
.feedback-panel{border:1px solid var(--line);border-radius:22px;padding:34px}
.feedback-panel h2{font-size:26px;margin:0 0 12px}
.panel-description{font-size:15px;color:var(--muted);line-height:1.8;margin:0 0 28px}
.field{margin-bottom:23px;min-width:0}
.field label,.feedback-result label{display:block;font-size:15px;font-weight:600;margin-bottom:10px}
.required,.optional{font-size:12px;font-weight:400;color:var(--muted);margin-left:6px}
input,textarea,select{width:100%;border:1px solid #c5d2e3;background:#fff;border-radius:10px;padding:13px 15px;font:inherit;font-size:16px;line-height:1.6;color:var(--ink)}
input::placeholder,textarea::placeholder{color:#6b7b90;opacity:1}
textarea{resize:vertical;min-height:105px}
input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #0064e02e;outline-offset:2px;border-color:var(--blue)}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-note{font-size:13px;line-height:1.9;color:var(--muted);margin:0 0 22px}
button.button{border:0}
.feedback-result{margin-top:28px;padding-top:25px;border-top:1px solid var(--line)}
.feedback-result h3{font-size:18px;margin:0 0 10px}
.feedback-result p{font-size:14px;color:var(--muted);line-height:1.8;margin:0 0 18px}
.feedback-result textarea{font-size:14px;background:var(--pale);margin-bottom:10px}
.copy-button{border:1px solid var(--line);background:#fff;padding:10px 14px;border-radius:8px;color:var(--blue);margin-bottom:12px}
.support-card{background:var(--pale);border:1px solid #d9e8fc;padding:32px;border-radius:22px}
.support-card .feature-number{margin-bottom:22px}
.support-card h2{font-size:28px;margin-bottom:18px}
.support-card p{color:var(--muted);font-size:15px;line-height:1.9;margin:0 0 24px}
.feedback-steps{list-style:none;padding:0;margin:32px 0}
.feedback-steps li{display:flex;gap:18px;padding-block:16px}
.feedback-steps li>span{font-size:13px;color:var(--blue);line-height:26px}
.feedback-steps h3{font-size:16px;font-weight:600;margin:0 0 6px}
.feedback-steps p,.aside-note{font-size:14px;color:var(--muted);line-height:1.9;margin:0}
.aside-note{border-top:1px solid var(--line);padding-top:22px}
.aside-note .text-link{display:inline-block;margin-top:8px}
.changelog-layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:65px;align-items:start;margin-bottom:90px}
.release-sidebar{position:sticky;top:30px}
.release-sidebar .feature-number{margin-bottom:20px}
.release-sidebar nav a{display:flex;justify-content:space-between;gap:16px;padding:14px 0;border-bottom:1px solid var(--line);font-size:16px;font-weight:600}
.release-sidebar nav a span+span{font-size:12px;font-weight:400;color:var(--muted)}
.release-sidebar>p{font-size:14px;line-height:2;color:var(--muted);margin-top:28px}
.release{padding-bottom:42px;margin-bottom:42px;border-bottom:1px solid var(--line);scroll-margin-top:30px}
.release:last-child{margin-bottom:0}
.release-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:25px}
.release-heading h2{font-size:36px;letter-spacing:-.03em;display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin:0}
.release-heading>.text-link{flex-shrink:0;font-size:14px}
.release-channel{font-size:12px;color:var(--muted);margin:0 0 10px}
.release-badge{font-size:12px;font-weight:500;letter-spacing:0;color:var(--blue);background:#eaf3ff;border-radius:100px;padding:7px 12px}
.release ul{padding-left:22px;margin:0}
.release li{font-size:16px;line-height:1.9;margin-bottom:13px;padding-left:3px;overflow-wrap:anywhere}
.release li::marker{color:#7bace9}
.release code{font-size:.9em;background:var(--pale);border-radius:4px;padding:2px 5px}
.release-note{color:var(--muted);font-size:14px;line-height:1.9;padding:16px 20px;background:var(--pale);border-radius:10px;margin:23px 0 0}
@media(max-width:1000px){
  .header nav{gap:16px;font-size:14px}
  .feedback-layout{gap:30px}
  .feedback-panel,.support-card{padding:26px}
  .changelog-layout{grid-template-columns:180px minmax(0,1fr);gap:40px}
}
@media(max-width:720px){
  .header{flex-wrap:wrap;padding-block:12px;gap:4px 12px}
  .header nav{display:flex;order:3;width:100%;justify-content:center;flex-wrap:wrap;gap:0 20px;font-size:13px}
  .header nav a{padding-block:10px}
  .page-intro{padding-block:40px 35px;margin-bottom:30px}
  .page-intro h1{font-size:clamp(38px,9vw,56px)}
  .page-description{font-size:16px}
  .feedback-layout{grid-template-columns:1fr;gap:32px;margin-bottom:55px}
  .feedback-panel,.support-card{padding:24px 20px;border-radius:18px}
  .field-row{grid-template-columns:1fr;gap:0}
  #feedback-form .button{width:100%}
  .feedback-steps{margin-block:20px}
  .changelog-layout{grid-template-columns:1fr;gap:32px;margin-bottom:55px}
  .release-sidebar{position:static}
  .release-sidebar nav{display:flex;flex-wrap:wrap;gap:10px}
  .release-sidebar .feature-number{width:100%;margin-bottom:4px}
  .release-sidebar nav a{gap:0;padding:10px 16px;border:1px solid var(--line);border-radius:100px;font-size:14px}
  .release-sidebar nav a span+span{display:none}
  .release-sidebar>p{display:none}
  .release-heading{align-items:start;flex-direction:column;gap:14px}
  .release-heading h2{font-size:32px}
  .release li{font-size:15px}
}