/* Version C: From SaaS to AI-native overview */
.sx-sub{position:sticky;top:0;z-index:40;background:rgba(243,240,234,.86);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.sx-sub-in{display:flex;justify-content:space-between;align-items:center;height:48px;font-size:13px}
.sx-name{color:var(--muted)} .sx-name .short{display:none}
.sx-sub nav{display:flex;gap:4px}
.sx-sub nav a{padding:6px 12px;border-radius:999px;color:var(--ink-2);transition:background .2s var(--ease)}
.sx-sub nav a:hover{background:var(--paper-2)}
.sx-sub nav a[aria-current]{background:var(--ink);color:var(--paper)}
.sx-hero h1{font-size:clamp(64px,9.4vw,150px)!important}
.sx-hero h1 em{font-family:"Instrument Serif",serif;font-style:italic;font-weight:400;letter-spacing:-.03em}
.sx-deck{max-width:780px}
.sx-deck .lede{margin:0 0 18px}
.sx-note{margin:0;font-size:14px;color:var(--muted)}
.sx-layout{display:grid;grid-template-columns:3fr 9fr;gap:56px;padding:96px 0 120px;position:relative;z-index:1}
.sx-aside{position:sticky;top:96px;align-self:start}
.sx-aside .kicker{display:block;font-size:12px;letter-spacing:.13em;text-transform:uppercase;color:rgba(243,240,234,.5);margin-bottom:14px}
.sx-aside h2{margin:0 0 14px;font-size:clamp(32px,3vw,44px);font-weight:600;letter-spacing:-.04em;line-height:1}
.sx-aside p{margin:0;font-size:15px;line-height:1.55;color:rgba(243,240,234,.6)}
.sx-row{display:grid;grid-template-columns:160px 1fr;gap:32px;margin:0;padding:36px 0;border-top:1px solid var(--line-d)}
.sx-row dt{font-size:12px;letter-spacing:.13em;text-transform:uppercase;color:rgba(243,240,234,.5);padding-top:8px}
.sx-row dd{margin:0}
.sx-row h2{margin:0 0 12px;font-size:clamp(26px,2.5vw,36px);font-weight:600;letter-spacing:-.035em;line-height:1.08;color:var(--paper)}
.sx-row p{margin:0;max-width:640px;font-size:17px;line-height:1.6;color:rgba(243,240,234,.72)}
.sx-facts{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;padding:28px 0;border-top:1px solid var(--line-d);border-bottom:1px solid var(--line-d)}
.sx-facts small{display:block;font-size:11px;letter-spacing:.13em;text-transform:uppercase;color:rgba(243,240,234,.5);margin-bottom:6px}
.sx-facts strong{font-weight:500;font-size:15px;color:var(--paper)}
.sx-ch{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:40px}
.sx-ch a{position:relative;display:block;padding:28px 28px 64px;border:1px solid var(--line-d);border-radius:var(--r);background:rgba(243,240,234,.03);transition:border-color .3s var(--ease),transform .3s var(--ease)}
.sx-ch a:hover{border-color:rgba(243,240,234,.4);transform:translateY(-3px)}
.sx-ch small{font-size:11px;letter-spacing:.13em;text-transform:uppercase;color:rgba(243,240,234,.5)}
.sx-ch h3{margin:56px 0 10px;font-size:32px;font-weight:600;letter-spacing:-.035em;color:var(--paper)}
.sx-ch p{margin:0;font-size:15px;line-height:1.55;color:rgba(243,240,234,.66)}
.sx-ch b{position:absolute;right:24px;bottom:22px;font-weight:400;font-size:20px;color:var(--paper);transition:transform .3s var(--ease)}
.sx-ch a:hover b{transform:translateX(4px)}
@media (max-width:900px){.sx-layout{grid-template-columns:1fr;gap:24px;padding:64px 0}.sx-aside{position:static}.sx-row{grid-template-columns:1fr;gap:8px}.sx-facts{grid-template-columns:1fr 1fr}.sx-ch{grid-template-columns:1fr}.sx-name .full{display:none}.sx-name .short{display:inline}}
@media (prefers-reduced-motion:reduce){.sx-ch a,.sx-ch b{transition:none}.sx-ch a:hover{transform:none}}
.sx-top{position:relative;z-index:1;padding-top:72px}
.sx-facts-rich{align-items:start}
.sx-facts-rich span{display:block;margin-top:8px;font-size:14px;line-height:1.5;color:rgba(243,240,234,.62)}
.sx-facts-rich strong{font-size:20px;letter-spacing:-.02em}
.sx-num{font-size:clamp(28px,2.6vw,38px)!important;font-weight:600;letter-spacing:-.04em}
.sx-row .sx-lead{font-size:clamp(22px,2vw,28px);line-height:1.25;letter-spacing:-.025em;color:var(--paper);font-weight:500;max-width:720px}
.sx-out{padding:48px 0 20px;border-top:1px solid var(--line-d)}
.sx-out .kicker{display:block;font-size:12px;letter-spacing:.13em;text-transform:uppercase;color:rgba(243,240,234,.5);margin-bottom:12px}
.sx-out h3{margin:0 0 10px;font-size:clamp(28px,2.6vw,38px);font-weight:600;letter-spacing:-.04em;color:var(--paper)}
.sx-out p{margin:0;max-width:600px;font-size:16px;line-height:1.6;color:rgba(243,240,234,.66)}
.sx-facts+.sx-facts{border-top:0}
/* block rhythm: memo rows | outcome | role strip read as separate blocks */
.sx-top{padding-top:96px}
.sx-top+.sx-layout{padding-top:128px}
.sx-row+.sx-facts,.sx-row+.sx-out{margin-top:136px}
.sx-out{padding-top:0;border-top:0}
.sx-out+.sx-facts{margin-top:40px}
.sx-facts-rich+.sx-facts{margin-top:136px;border-top:1px solid var(--line-d)}
.sx-facts+.sx-ch{margin-top:56px}
@media (max-width:820px){.sx-top{padding-top:56px}.sx-top+.sx-layout{padding-top:72px}.sx-row+.sx-facts,.sx-row+.sx-out,.sx-facts-rich+.sx-facts{margin-top:80px}}