:root{--color-bg: #ffffff;--color-bg-muted: color-mix(in srgb, var(--color-accent) 6%, var(--color-bg));--color-bg-wash: color-mix(in srgb, var(--color-accent) 16%, var(--color-bg));--color-frame-glow: color-mix(in srgb, var(--color-accent) 22%, transparent);--color-text: #1a1a1a;--color-text-muted: #666666;--color-accent: #1f4b99;--color-accent-hover: #163a78;--color-border: #eeeeee;--color-frame: #d9d9d9;--color-frame-bg: #fafafa;--radius-pill: 999px;--radius-frame: 1rem;--font-sans: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;--font-size-h1: clamp(2rem, 4.5vw, 3.25rem);--font-size-h2: clamp(1.5rem, 3vw, 2.25rem);--font-size-h3: clamp(1.125rem, 2vw, 1.375rem);--font-size-body: 1rem;--font-size-lead: clamp(1rem, 1.4vw, 1.125rem);--line-height-tight: 1.2;--line-height-snug: 1.35;--line-height-body: 1.65;--lead-max-inline-size: 36rem;--product-frame-width: 28rem;--product-frame-height: 22rem;--device-frame-width: 36rem;--device-frame-height: 24rem}*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:var(--font-sans);font-size:var(--font-size-body);line-height:var(--line-height-body);color:var(--color-text);background:var(--color-bg)}h1,h2,h3{margin-block:0 .75rem;font-weight:700;color:var(--color-text)}h1{font-size:var(--font-size-h1);line-height:var(--line-height-tight)}h2{font-size:var(--font-size-h2);line-height:var(--line-height-snug)}h3{font-size:var(--font-size-h3);line-height:var(--line-height-snug)}.product-frame{position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center;inline-size:min(100%,var(--product-frame-width));block-size:var(--product-frame-height);max-inline-size:var(--product-frame-width);flex-shrink:0;border:2px dashed var(--color-frame);border-radius:var(--radius-frame);background-color:var(--color-frame-bg);background-image:radial-gradient(ellipse at 50% 38%,var(--color-frame-glow),transparent 65%);color:var(--color-text-muted)}.split>.product-frame{justify-self:center;align-self:center}.product-frame:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(100deg,transparent 35%,color-mix(in srgb,var(--color-bg) 55%,transparent) 50%,transparent 65%);transform:translate(-120%);animation:frame-shine 4.8s ease-in-out infinite}.product-frame:after{position:absolute;inset-block-end:.75rem;font-size:.75rem;letter-spacing:.08em;color:var(--color-text-muted)}.product-frame-platform{position:absolute;inset-block-start:1rem;inset-inline-start:1rem;z-index:1;padding-block:.25rem;padding-inline:.625rem;border-radius:var(--radius-pill);background:color-mix(in srgb,var(--color-accent) 12%,var(--color-bg));color:var(--color-accent);font-size:.8125rem;font-weight:700;letter-spacing:.04em}.product-frame-placeholder{position:relative;z-index:0}.product-frame-image{position:absolute;top:0;right:0;bottom:0;left:0;z-index:0;inline-size:100%;block-size:100%;object-fit:cover;object-position:center}.device-frame.is-windows:after{content:"Windows"}.device-frame.is-macos:after{content:"macOS"}@keyframes frame-shine{to{transform:translate(120%)}}.download-button{display:inline-flex;align-items:center;justify-content:center;margin:0;border:0;border-radius:var(--radius-pill);background:var(--color-accent);color:var(--color-bg);font:inherit;line-height:1.25;padding-block:.625rem;padding-inline:1.5rem;cursor:pointer;transition:transform .15s ease}.download-button:hover{background:var(--color-accent-hover);transform:scale(1.03)}.download-button:active{transform:scale(.98)}.site-header{position:sticky;inset-block-start:0;z-index:10;display:flex;align-items:center;gap:1rem;padding-block:.75rem;padding-inline:clamp(1.25rem,6vw,5rem);background:var(--color-bg);border-bottom:1px solid transparent}.site-header-end{display:flex;align-items:center;gap:1rem;margin-inline-start:auto;flex-shrink:0}.site-header .download-button{flex-shrink:0;margin:0}.site-header.is-scrolled{border-bottom-color:var(--color-border)}.site-brand{display:inline-flex;align-items:center;gap:.625rem;margin:0;font-size:1.375rem;font-weight:700;line-height:1;color:var(--color-accent);text-decoration:none}.site-brand-icon{display:block;inline-size:2.5rem;block-size:2.5rem;border-radius:.5rem;flex-shrink:0}.site-nav{display:flex;align-items:center;gap:1rem}.site-nav button{display:inline-flex;align-items:center;margin:0;padding-block:.625rem;padding-inline:0;position:relative;border:0;background:transparent;color:var(--color-text);cursor:pointer;font:inherit}.site-nav button:after{content:"";position:absolute;inset-inline:0;inset-block-end:-.2rem;block-size:2px;background:var(--color-accent);transform:scaleX(0);transform-origin:center;transition:transform .2s ease}.site-nav button:hover:after,.site-nav button:focus-visible:after{transform:scaleX(1)}.hero{position:relative;isolation:isolate;align-items:center;min-block-size:min(72vh,40rem);background:linear-gradient(180deg,var(--color-bg) 12%,var(--color-bg-wash) 100%)}.hero:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;z-index:-1;pointer-events:none;background:radial-gradient(ellipse 48% 42% at 14% 86%,var(--color-frame-glow),transparent 72%),radial-gradient(ellipse 70% 80% at 82% 42%,var(--color-frame-glow),transparent 68%)}.hero,.split{perspective:64rem}.hero .product-frame,[data-motion=split] .product-frame{transform-style:preserve-3d}.split-title{overflow:visible}.split-char{display:inline-block}.read-progress{position:absolute;inset-inline:0;inset-block-end:0;block-size:2px;background:var(--color-accent);transform:scaleX(0);transform-origin:left center;pointer-events:none}.hero p,.section p{margin-block:0 1.25rem;max-inline-size:var(--lead-max-inline-size);font-size:var(--font-size-lead);line-height:var(--line-height-body);color:var(--color-text-muted)}.section{padding-block:clamp(3rem,8vw,6rem);padding-inline:clamp(1.25rem,6vw,5rem)}.section-muted{background:var(--color-bg-muted)}.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(1.5rem,4vw,3rem);align-items:center}.capability-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1rem;align-items:stretch}.capability-card{display:flex;flex-direction:column;block-size:100%;padding:1.25rem;border:1px solid var(--color-border);border-radius:var(--radius-frame);background:var(--color-bg);transition:transform .25s ease}.capability-card h3{margin-block:0 .75rem}.capability-card p{margin-block:0;flex:1 1 auto}.capability-card:hover{transform:translateY(-.4rem)}.download-panel{display:flex;flex-direction:column;align-items:center;gap:1.5rem;text-align:center}.download-panel .split-title{margin-inline:auto}.download-actions{display:flex;flex-wrap:nowrap;align-items:stretch;justify-content:center;gap:1rem;inline-size:min(100%,28rem);margin-inline:auto}.download-actions .platform-card{flex:1 1 0;min-inline-size:0;max-inline-size:14rem}.platform-card{display:inline-flex;align-items:center;justify-content:center;inline-size:100%;min-block-size:3.25rem;border:0;border-radius:var(--radius-pill);background:var(--color-accent);color:var(--color-bg);padding-block:.625rem;padding-inline:1.5rem;cursor:pointer;font:inherit;line-height:1.25;text-align:center;transition:transform .15s ease}.platform-card:hover{background:var(--color-accent-hover);transform:scale(1.03)}.platform-card:active{transform:scale(.98)}.platform-card:disabled{cursor:wait;opacity:.72;transform:none}.device-frames{display:grid;grid-template-columns:1fr;gap:1.5rem;justify-items:center;min-block-size:var(--device-frame-height);margin-block-start:1.5rem}.device-carousel{display:flex;flex-direction:column;align-items:center;gap:1rem;margin-block-start:1.5rem}.device-carousel-viewport{position:relative;inline-size:min(100%,var(--device-frame-width));block-size:var(--device-frame-height);max-inline-size:var(--device-frame-width)}.device-carousel-viewport .product-frame{position:absolute;top:0;right:0;bottom:0;left:0;inline-size:100%;block-size:100%;max-inline-size:none;opacity:0;transition:opacity .5s ease;pointer-events:none}.device-carousel-viewport .product-frame.is-active{opacity:1;pointer-events:auto}.device-carousel-dots{display:flex;align-items:stretch;justify-content:center;gap:.5rem;inline-size:min(100%,14rem)}.device-carousel-dots button{flex:1 1 0;min-inline-size:0;margin:0;border:1px solid var(--color-border);border-radius:var(--radius-pill);background:var(--color-bg);color:var(--color-text-muted);padding-block:.375rem;padding-inline:.875rem;font:inherit;line-height:1.25;text-align:center;cursor:default;transition:background-color .2s ease,color .2s ease,border-color .2s ease}.device-carousel-dots button:hover,.device-carousel-dots button:focus-visible{border-color:color-mix(in srgb,var(--color-accent) 45%,var(--color-border));color:var(--color-accent)}.device-carousel-dots button.is-active{border-color:var(--color-accent);background:var(--color-accent);color:var(--color-bg)}.device-frame{inline-size:min(100%,var(--device-frame-width));block-size:var(--device-frame-height);max-inline-size:var(--device-frame-width)}.device-frame.is-windows{border-radius:var(--radius-frame)}.device-frame.is-macos{border-radius:1.15rem}.device-frame.is-macos .product-frame-platform{background:color-mix(in srgb,#555 12%,var(--color-bg));color:#333}.site-footer{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:1rem;padding-block:2rem;padding-inline:clamp(1.25rem,6vw,5rem);border-top:1px solid var(--color-border);color:var(--color-text-muted)}.site-footer nav{display:flex;gap:1rem}.site-footer a{color:inherit;text-decoration:none}@media(min-width:56rem){.device-frames{place-items:center}}@media(max-width:55.999rem){.split,.capability-grid{grid-template-columns:1fr}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.download-button:hover,.download-button:active,.platform-card:hover,.platform-card:active,.capability-card:hover{transform:none}.product-frame:before,.site-nav button:after,.read-progress{animation:none;transform:none}.device-carousel-viewport .product-frame{transition:none}.read-progress{display:none}}