:root{color-scheme:light;--paper:#f4f0e8;--ink:#252820;--body:#50534a;--muted:#6a6d61;--green:#344e3d;--line:#d3d3c6;--wash:#e8eadf;--serif:"Songti SC","STSong","Noto Serif CJK SC",Georgia,serif;--sans:-apple-system,BlinkMacSystemFont,"Helvetica Neue","PingFang SC","Noto Sans CJK SC",sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,a,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,summary:focus-visible{outline:3px solid var(--green);outline-offset:5px}::selection{background:#ced9c8}.wrap{max-width:1200px;margin:auto;padding-inline:48px}.skip{position:absolute;top:-100px;padding:12px;background:var(--ink);color:white;z-index:9}.skip:focus{top:10px}.masthead{display:flex;justify-content:space-between;align-items:center;min-height:100px;gap:24px}.wordmark{display:flex;align-items:center;gap:12px;font-weight:600;font-size:17px}.mark{font-family:Georgia,serif;font-size:36px;color:var(--green);line-height:1}.slash{color:#aaa99a;font-weight:400;margin-inline:8px}.product{font-size:14px;color:var(--body);font-weight:400}nav{display:flex;gap:28px;font-size:14px}nav a{padding-block:8px}nav a:hover,.text-link:hover,.checksum a:hover{text-decoration:underline;text-underline-offset:5px}.hero{min-height:650px;display:grid;grid-template-columns:1.1fr 1fr;align-items:center;gap:38px;padding-top:58px;padding-bottom:80px}.eyebrow{font-size:12px;font-weight:650;letter-spacing:.12em;color:var(--green);margin:0 0 26px}.eyebrow span{font-weight:400;color:var(--muted)}.product-name{margin:0 0 15px;font-size:16px;color:var(--body)}h1{font-family:var(--serif);font-size:clamp(42px,4.6vw,64px);font-weight:600;letter-spacing:-.055em;line-height:1.28;margin:0 0 28px}h2{font-family:var(--serif);font-size:36px;line-height:1.45;letter-spacing:-.035em;font-weight:600;margin:0}h3{font-size:22px;font-weight:600;line-height:1.5;margin:14px 0}.lead{font-size:17px;line-height:1.9;max-width:420px;color:var(--body);margin:0}.actions{display:flex;align-items:center;gap:27px;margin-top:32px}.button{display:inline-flex;align-items:center;justify-content:space-between;gap:34px;padding:12px 22px;min-height:50px;border-radius:4px;font-size:15px;font-weight:550;transition:background .15s}.primary{background:var(--green);color:#fff}.primary:hover{background:#233c2b}.text-link{font-size:14px;font-weight:500}.compat{font-size:12px;color:var(--muted);margin-top:20px}.bridge-illustration{position:relative;height:400px;margin-left:10px}.sheet{background:#f9f7f1;border:1px solid #d2d4c7;border-radius:7px;padding:25px;position:absolute;box-shadow:0 12px 30px #242e2110}.rear{top:16px;left:0;width:235px;transform:rotate(-7deg);background:#e4e8db;min-height:255px}.mini-label{display:block;font-size:10px;letter-spacing:.1em;color:var(--muted);margin-bottom:26px}.raw-badge{position:relative;display:inline-block;border:2px solid var(--green);box-shadow:inset 0 0 0 2px #e4e8db,inset 0 0 0 3px var(--green);padding:1px 9px;line-height:1.35;font-size:32px;font-weight:750;color:var(--green);letter-spacing:-.05em}.raw-badge span{position:absolute;right:-10px;bottom:-11px;font-size:20px;line-height:1;background:#e4e8db;padding-left:3px}.rear p{margin:24px 0 0;font-size:17px}.file-types{font-size:11px;color:var(--muted)}.front{bottom:0;right:0;width:290px;transform:rotate(3deg)}.sheet-heading{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-bottom:16px}.sheet-heading b{font-size:19px;font-weight:600}.dot-label{font-size:10px;color:var(--green)}.dot-label:before{content:"";display:inline-block;width:5px;height:5px;border-radius:50%;background:var(--green);margin-right:5px}dl{margin:0}dl div{display:flex;justify-content:space-between;gap:10px;padding:12px 0;border-top:1px solid #e2e1d7;font-size:12px}dt{color:var(--muted)}dd{margin:0;font-weight:500}.demo-caption{font-size:9px;color:var(--muted);margin:16px 0 0}.bridge-label{position:absolute;top:0;right:0;text-align:center;color:var(--green);width:114px}.bridge-label b{font-family:Georgia,serif;font-size:26px;letter-spacing:.03em;display:block}.bridge-label small{font-size:10px;display:block}.bridge-line{display:block;height:22px;width:74px;border:1px solid #91a18d;border-bottom:0;border-radius:70px 70px 0 0;margin:auto}.scope-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.scope-inner{display:flex;align-items:center;gap:34px;padding-block:20px}.small-label{font-size:11px;letter-spacing:.1em;white-space:nowrap;color:var(--muted)}.scope-inner p{font-size:13px;color:var(--body);margin:0}.scope-inner strong{font-weight:550}.divider{margin-inline:18px;color:#a3a797}.section{padding-top:100px;padding-bottom:100px}.intro,.notes{display:grid;grid-template-columns:.8fr 1.2fr;gap:80px}.body-large{font-size:20px;line-height:1.9;margin:0 0 32px;color:var(--body)}.feature-lines>div{display:flex;gap:24px;border-top:1px solid var(--line);padding:22px 0}.feature-lines>div:last-child{padding-bottom:0}.feature-lines>div>span{font-family:Georgia,serif;font-size:13px;color:var(--muted);padding-top:4px}.feature-lines p{margin:0;color:var(--body);font-size:14px}.feature-lines strong{display:block;color:var(--ink);font-size:16px;font-weight:550;margin-bottom:6px}.how{background:var(--wash)}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:48px}.section-heading>p{font-size:13px;color:var(--body);margin:0 0 6px}.steps{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:45px;padding:0;margin:0}.steps li{border-top:1px solid #b8c2b0;padding-top:22px}.step-no{font-family:Georgia,serif;font-size:36px;color:#76866e;line-height:1}.steps p{font-size:14px;color:var(--body);line-height:1.9;margin:0}.steps strong{font-weight:600;color:var(--ink)}code{font-size:12px;overflow-wrap:anywhere}.steps .setting{font-size:12px;border-left:2px solid #a7b69d;padding-left:14px;margin-top:22px;color:var(--green)}.how-note{font-size:12px;color:var(--body);border-top:1px solid #cbd1c1;padding-top:23px;margin:40px 0 0}.downloads{display:grid;grid-template-columns:.8fr 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7px;font-weight:500}.channel-detail{display:block;font-size:12px;margin-top:5px;color:var(--muted)}.download-symbol{font-size:25px;color:var(--green);padding-right:8px}.unavailable .channel{font-size:16px;color:var(--muted);font-weight:400}.pending{font-size:11px;color:var(--muted);border:1px solid var(--line);border-radius:3px;padding:2px 8px;white-space:nowrap}.checksum{display:flex;gap:16px;flex-wrap:wrap;font-size:12px;color:var(--muted);margin:20px 0 0}.notes{padding-top:0}.faq details{border-top:1px solid var(--line)}.faq details:last-child{border-bottom:1px solid var(--line)}summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:20px;cursor:pointer;padding:21px 0;font-size:15px;font-weight:500}summary::-webkit-details-marker{display:none}summary:after{content:"+";color:var(--muted);font-size:20px;font-weight:400;line-height:1}details[open] summary:after{content:"−"}.faq p{font-size:13px;color:var(--body);line-height:1.9;margin:0 0 24px}.faq p a{text-decoration:underline;text-underline-offset:3px}.footer{border-top:1px solid var(--line);padding-top:33px;padding-bottom:35px;display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}.footer>div{display:flex;flex-direction:column}.footer b{font-size:15px;font-weight:550}.footer>div>span{font-size:11px;color:var(--muted);margin-top:3px}.footer nav{font-size:12px}.footer>p{width:100%;font-size:10px;color:var(--muted);margin:0}
@media(min-width:1400px){.hero{min-height:710px}.bridge-illustration{transform:scale(1.07);transform-origin:center}}@media(max-width:1000px){.wrap{padding-inline:32px}.hero{gap:20px;grid-template-columns:1fr 1fr}.bridge-illustration{margin-left:0}.rear{width:205px}.front{width:255px;padding:22px}.bridge-label{right:-8px}.intro,.downloads,.notes{gap:48px}.steps{gap:28px}h2{font-size:31px}.scope-inner{gap:22px}.divider{margin-inline:9px}}@media(max-width:740px){.wrap{padding-inline:24px}.masthead{min-height:82px;gap:14px}.wordmark{font-size:15px;gap:9px}.mark{font-size:32px}.slash,.product{display:none}nav{gap:19px;font-size:12px}.hero{grid-template-columns:1fr;padding-top:42px;padding-bottom:55px;gap:22px;min-height:0}.hero-copy .eyebrow{margin-bottom:20px}.product-name{font-size:14px;margin-bottom:12px}h1{font-size:48px;margin-bottom:23px}.lead{font-size:16px;max-width:450px}.actions{margin-top:26px;gap:23px}.text-link{font-size:13px}.compat{font-size:10px}.bridge-illustration{width:min(360px,100%);justify-self:center;height:350px;margin-top:13px}.rear{width:205px;top:10px;left:4px;min-height:225px;padding:22px}.front{width:251px;bottom:0;right:3px}.bridge-label{width:100px;top:29px;right:0}.scope-inner{align-items:flex-start;gap:12px;flex-direction:column;padding-block:20px}.scope-inner p{font-size:12px}.divider{display:block;font-size:0;height:4px}.section{padding-top:65px;padding-bottom:65px}.intro,.downloads,.notes{grid-template-columns:1fr;gap:30px}.eyebrow{font-size:10px;margin-bottom:18px}h2{font-size:31px}.body-large{font-size:17px;margin-bottom:24px}.feature-lines>div{gap:20px;padding-block:20px}.section-heading{display:block;margin-bottom:30px}.section-heading>p{margin-top:18px}.section-heading>p br{display:none}.steps{grid-template-columns:1fr;gap:28px}.steps li{display:grid;grid-template-columns:32px 1fr;column-gap:17px;padding-top:24px}.step-no{grid-row:1/4;font-size:30px}.steps h3{font-size:20px;margin:0 0 9px}.steps p{font-size:14px}.steps .setting{margin-top:15px;font-size:12px}.how-note{margin-top:30px}.download-intro .download-note{max-width:none;margin-top:20px}.download-row{padding:20px 2px}.channel{font-size:17px}.channel-detail{font-size:11px}.downloads{gap:24px}.notes{padding-top:0}.footer{gap:25px}.footer nav{gap:22px}.footer>p{font-size:10px}summary{font-size:14px}.faq p{font-size:13px}}
@media(max-width:740px){.bridge-illustration{height:370px}.bridge-label{top:-8px;z-index:2}}
.integrity{margin-top:22px;border-top:1px solid var(--line);font-size:12px;color:var(--body)}.integrity summary{font-size:13px}.integrity p{font-size:12px;line-height:1.9;margin:0 0 14px}.integrity code{display:block;font-family:"SFMono-Regular",Consolas,monospace;font-size:11px;background:#e7e8dd;padding:12px;overflow-wrap:anywhere;user-select:all;line-height:1.8;margin-bottom:12px}.integrity button{font:inherit;background:transparent;border:1px solid #a7b39e;border-radius:3px;padding:9px 12px;min-height:40px;color:var(--green);cursor:pointer;margin:0 12px 17px 0}.integrity button:hover{background:var(--wash)}.integrity button:focus-visible{outline:3px solid var(--green);outline-offset:3px}.integrity a{text-decoration:underline;text-underline-offset:3px}.integrity .command{user-select:text}
.quota-note{font-size:11px;color:var(--muted);line-height:1.8;margin:12px 0 0}.download-row[aria-disabled="true"]{cursor:default}.download-row[aria-disabled="true"]:hover{background:transparent}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}@media(max-width:350px){.wrap{padding-inline:18px}h1{font-size:42px}.actions{gap:16px}.button{gap:20px}.bridge-illustration{height:350px}.rear{width:180px}.front{width:235px}.masthead nav{gap:13px}.channel-detail{max-width:235px}}