.bt{font-family:var(--font-body);color:#0b0b0b;position:relative}.bt [id]{scroll-margin-top:112px}.bt-k,.bt-eyebrow{font-family:var(--font-body);letter-spacing:.12em;text-transform:uppercase;color:#6e6e73;font-size:12px;font-weight:500;display:block}.bt-dot{opacity:.4;vertical-align:middle;background:currentColor;border-radius:50%;width:4px;height:4px;display:inline-block}.bt-ulink{color:inherit;text-underline-offset:5px;font-weight:500;-webkit-text-decoration:underline rgba(11,11,11,.35);text-decoration:underline rgba(11,11,11,.35);text-decoration-thickness:1px;transition:-webkit-text-decoration-color .15s,text-decoration-color .15s}.bt-ulink:hover{-webkit-text-decoration-color:currentColor;text-decoration-color:currentColor}.bt-cover{z-index:2;border-radius:inherit;position:absolute;top:0;bottom:0;left:0;right:0}.bt-p{letter-spacing:-.005em;color:rgba(11,11,11,.84);margin:0 0 22px;font-size:19px;line-height:1.6}.bt-p strong,.bt-ul strong,.bt-ol strong{color:#0b0b0b;font-weight:600}.bt-a{color:#0b0b0b;text-underline-offset:3px;-webkit-text-decoration:underline rgba(11,11,11,.35);text-decoration:underline rgba(11,11,11,.35)}.bt-a:hover{-webkit-text-decoration-color:#0b0b0b;text-decoration-color:#0b0b0b}.bt-h2{font-family:var(--font-display);letter-spacing:-.02em;color:#0b0b0b;text-wrap:balance;margin:56px 0 18px;font-size:max(26px,min(2.3vw,34px));font-weight:600;line-height:1.15}.bt-h3{font-family:var(--font-display);letter-spacing:-.015em;color:#0b0b0b;margin:36px 0 12px;font-size:max(20px,min(1.7vw,24px));font-weight:600;line-height:1.2}.bt-ul,.bt-ol{color:rgba(11,11,11,.84);margin:0 0 22px;padding-left:24px;font-size:19px;line-height:1.6}.bt-ul{list-style:outside}.bt-ol{list-style:decimal}.bt-ul li,.bt-ol li{margin:0 0 8px;padding-left:4px}.bt-fig{margin:40px 0}.bt-fig img{background:#e8e8ed;border-radius:16px;width:100%;height:auto;display:block}.bt-tablewrap{margin:28px 0;overflow-x:auto}.bt-table{border-collapse:collapse;width:100%;font-size:15px;line-height:1.45}.bt-table th,.bt-table td{text-align:left;vertical-align:top;border-bottom:1px solid rgba(11,11,11,.12);padding:12px 14px}.bt-table th{color:#0b0b0b;border-bottom-color:rgba(11,11,11,.3);font-weight:600}.bt code{font-family:ui-monospace,SF Mono,Menlo,Consolas,monospace;font-size:.92em}.bt-brief{background:#f5f5f7;border-radius:18px;margin:0 0 44px;padding:24px 28px 22px}.bt-brief-list{counter-reset:bt-b;margin:12px 0 0;padding:0;list-style:none}.bt-brief-list li{color:rgba(11,11,11,.82);counter-increment:bt-b;margin:0 0 10px;padding-left:36px;font-size:17px;line-height:1.5;position:relative}.bt-brief-list li:last-child{margin-bottom:0}.bt-brief-list li:before{content:counter(bt-b,decimal-leading-zero);font-family:var(--font-display);letter-spacing:.06em;color:#86868b;font-size:13px;font-weight:500;position:absolute;top:.2em;left:0}.bt-faq{border-top:1px solid #d2d2d7;margin-top:64px;padding-top:28px}.bt-faq-list{margin:14px 0 0}.bt-faq-row{border-top:1px solid rgba(11,11,11,.1);padding:20px 0}.bt-faq-row:first-child{border-top:0}.bt-faq-q{font-family:var(--font-display);letter-spacing:-.015em;margin:0;font-size:max(18px,min(1.5vw,21px));font-weight:600;line-height:1.3}.bt-faq-a{color:rgba(11,11,11,.72);max-width:64ch;margin:10px 0 0;font-size:17px;line-height:1.55}.bt-cta{border-top:1px solid #d2d2d7;flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:12px 32px;max-width:1132px;margin:max(56px,min(7vh,96px)) auto max(72px,min(9vh,120px));padding-top:28px;display:flex}.bt-cta-lead{font-family:var(--font-display);letter-spacing:-.02em;margin:0;font-size:max(22px,min(2vw,30px));font-weight:600;line-height:1.2}.bt1{background:#fff}.bt1-hero{color:#f5f5f7;background:#000;align-items:flex-end;min-height:100svh;display:flex;position:relative;overflow:hidden}.bt1-img{filter:saturate(.9)contrast(1.12)brightness(.92);background-position:50%;background-size:cover;position:absolute;top:0;bottom:0;left:0;right:0}.bt1-screen{opacity:.92;background-image:radial-gradient(circle,transparent 0,transparent 1.6px,#000 2.1px);background-size:6px 6px;display:block;position:absolute;top:0;bottom:0;left:0;right:0}.bt1-scrim{pointer-events:none;background:linear-gradient(transparent 28%,rgba(0,0,0,.4) 58%,rgba(0,0,0,.86) 100%),linear-gradient(90deg,rgba(0,0,0,.45) 0%,transparent 60%);position:absolute;top:0;bottom:0;left:0;right:0}.bt1-in{z-index:1;width:100%;max-width:1228px;margin:0 auto;padding:max(150px,min(18vh,200px)) 24px max(56px,min(8vh,96px));animation:.9s cubic-bezier(.2,.7,.2,1) both bt1-up;position:relative}@keyframes bt1-up{0%{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}@media (prefers-reduced-motion:reduce){.bt1-in{animation:none}}.bt1-crumb{letter-spacing:.1em;text-transform:uppercase;color:rgba(245,245,247,.62);align-items:center;gap:10px;margin:0;font-size:13px;font-weight:500;display:flex}.bt1-crumb a{color:inherit;text-decoration:none;transition:color .15s}.bt1-crumb a:hover{color:#fff}.bt1-h1{max-width:18ch;font-family:var(--font-display);letter-spacing:-.035em;color:#fff;text-wrap:balance;margin:22px 0 0;font-size:max(44px,min(6.4vw,96px));font-weight:600;line-height:.96}.bt1-stand{letter-spacing:-.008em;color:rgba(245,245,247,.72);text-wrap:pretty;max-width:58ch;margin:26px 0 0;font-size:max(17px,min(1.3vw,20px));line-height:1.45}.bt1-meta{color:rgba(245,245,247,.55);flex-wrap:wrap;align-items:center;gap:10px;margin:18px 0 0;font-size:14px;display:flex}.bt1-body{grid-template-columns:240px minmax(0,720px);justify-content:center;column-gap:72px;max-width:1228px;margin:0 auto;padding:max(56px,min(7vh,88px)) 24px 0;display:grid}.bt1-side{align-self:start;position:-webkit-sticky;position:sticky;top:112px}.bt-toc{transition:opacity .25s}.bt-toc.is-under{opacity:0;pointer-events:none}.bt-toc-list{border-left:1px solid #d2d2d7;margin:14px 0 0;padding:0;list-style:none}.bt-toc-i a{color:#6e6e73;border-left:1px solid transparent;margin-left:-1px;padding:7px 0 7px 16px;font-size:14px;line-height:1.4;text-decoration:none;transition:color .15s,border-color .15s;display:block}.bt-toc-i.lvl3 a{padding-left:28px;font-size:13px}.bt-toc-i a:hover{color:#0b0b0b}.bt-toc-i.is-on a{color:#0b0b0b;border-left-color:#0b0b0b;font-weight:500}.bt1-main{min-width:0}.bt1-main .bt-bleed{width:calc(100% + 312px);margin-left:-312px}.bt1-main .bt-bleed img{border-radius:20px}.bt1-more-in{max-width:1180px;margin:max(64px,min(8vh,104px)) auto 0;padding:0 24px}.bt1-tiles{grid-template-rows:auto auto;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:14px;margin-top:18px;display:grid}.bt1-tile{color:#0b0b0b;border-radius:22px;flex-direction:column;justify-content:flex-end;gap:10px;min-height:176px;padding:26px;transition:transform .25s;display:flex;position:relative}.bt1-tile:hover{transform:translateY(-2px)}.bt1-tile-a{color:#fff;background:#0b0b0b;grid-row:1/3;min-height:366px}.bt1-tile-b{background:#fbe4d8}.bt1-tile-c{background:#e6d2ff}.bt1-tile-a .bt-eyebrow{color:rgba(255,255,255,.6)}.bt1-tile-t{max-width:22ch;font-family:var(--font-display);letter-spacing:-.02em;text-wrap:balance;margin:0;font-size:max(20px,min(1.7vw,26px));font-weight:600;line-height:1.15}.bt1-tile-a .bt1-tile-t{max-width:18ch;font-size:max(26px,min(2.4vw,38px))}.bt1-tile-m{opacity:.65;align-items:center;gap:8px;margin:0;font-size:13px;display:flex}@media (min-width:768px) and (max-width:1023px){.bt1-body{grid-template-columns:200px minmax(0,1fr);column-gap:40px}.bt1-main .bt-bleed{width:calc(100% + 240px);margin-left:-240px}}@media (max-width:767px){.bt [id]{scroll-margin-top:88px}.bt-p,.bt-ul,.bt-ol{font-size:17px}.bt-h2{margin-top:40px}.bt-brief{border-radius:16px;padding:20px 20px 18px}.bt-brief-list li{font-size:16px}.bt-cta{flex-direction:column;align-items:flex-start;margin:40px 16px 64px}.bt1-hero{min-height:82svh}.bt1-in{padding:calc(52px + 12px + 40px + env(safe-area-inset-top))20px 36px}.bt1-h1{max-width:none;font-size:max(32px,min(9.4vw,44px))}.bt1-stand{font-size:16px}.bt1-body{grid-template-columns:1fr;padding:36px 20px 0}.bt1-side{margin-bottom:32px;position:static}.bt-toc.is-under{opacity:1;pointer-events:auto}.bt1-main .bt-bleed{width:auto;margin-left:0}.bt1-more-in{margin-top:48px;padding:0 16px}.bt1-tiles{grid-template-rows:none;grid-template-columns:1fr;gap:10px}.bt1-tile{border-radius:18px;min-height:150px;padding:22px}.bt1-tile-a{grid-row:auto;min-height:210px}.bt1-tile-t,.bt1-tile-a .bt1-tile-t{max-width:none;font-size:22px}}