:root{--rail: 216px;--gut: 36px}html{scroll-behavior:smooth}.b-h2{margin:0;font-weight:800;font-size:clamp(28px,3.6vw,40px);line-height:1.08;letter-spacing:-.03em}.btn .ar{font-family:var(--mono);font-weight:400;font-size:14px}.btn.primary:hover{background:var(--red-dark);border-color:var(--red-dark);color:var(--on-red)}.b-grid{display:grid;grid-template-columns:var(--rail) minmax(0,1fr);column-gap:var(--gut)}.b-st{max-width:var(--w);margin:0 auto;padding:0 var(--pad);border-top:1px solid var(--line);overflow-x:clip}.b-body{align-items:start}.b-rail{--rp: 20px;position:sticky;top:var(--hh);height:calc(100vh - var(--hh));height:calc(100svh - var(--hh));padding:20px var(--rp) 20px 0;border-right:1px solid var(--line)}.b-step{height:calc(100vh - var(--hh) + var(--dw) * 1vh);height:calc(100svh - var(--hh) + var(--dw) * 1vh)}.b-pin{position:sticky;top:var(--hh);height:calc(100vh - var(--hh));height:calc(100svh - var(--hh));display:grid;grid-template-columns:minmax(0,1fr);grid-template-rows:auto minmax(0,1fr);row-gap:16px;padding:20px 0 14px;border-top:1px solid var(--soft);background:var(--bg)}.b-step:first-child .b-pin{border-top:0}.b-story{position:relative;margin-bottom:18px;padding-bottom:18px;border-bottom:2px solid var(--ink)}.b-story .b-h2{margin-top:9px;font-size:clamp(26px,3vw,34px)}.b-story .b-h2 em{display:block;font-style:normal;color:var(--red)}.b-full{position:absolute;right:0;bottom:23px;gap:7px;padding:7px 11px;font-size:10.5px;letter-spacing:1px;background:var(--panel)}.b-full .ar{font-size:12px}.b-chap{display:flex;align-items:center;gap:14px;margin-bottom:16px}.b-chap .no{flex:none;display:inline-flex;align-items:center;justify-content:center;min-width:42px;height:42px;padding:0 8px;background:var(--red);color:var(--on-red);font:400 20px/1 var(--mono)}.b-chap .ov{margin:0;font:10.5px var(--mono);letter-spacing:1.4px;text-transform:uppercase;color:var(--red)}.b-chap h3{margin:3px 0 0;font-weight:800;font-size:21px;line-height:1.12;letter-spacing:-.02em}.b-meta{display:flex;align-items:center;gap:14px;margin:0;font:12px var(--mono);letter-spacing:1.2px;text-transform:uppercase;color:var(--red)}.b-meta:after{content:"";order:1;flex:1;height:1px;background:var(--soft)}.b-meta .n{order:2;letter-spacing:.4px;color:var(--ink-dim)}.b-meta .n b{font-weight:400;color:var(--red)}.b-head h4{margin:9px 0 0;font-weight:800;font-size:clamp(25px,2.6vw,31px);line-height:1.1;letter-spacing:-.025em}.b-text{margin:10px 0 0;max-width:720px;font-size:16px;line-height:1.55}.b-head{position:relative;z-index:3}.term{padding:1px 7px 2px;border:1px solid rgba(26,24,20,.36);border-radius:8px;background:#1a181412;color:inherit;text-decoration:none;cursor:pointer;-webkit-box-decoration-break:clone;box-decoration-break:clone;transition:background .2s,border-color .2s,color .2s}.term:hover,.term[aria-expanded=true]{border-color:var(--red);background:var(--panel);color:var(--red)}.term-pop{position:absolute;left:var(--tx, 0px);top:var(--ty, 0px);z-index:20;width:min(410px,100%);padding:14px 42px 15px 16px;background:var(--panel);box-shadow:inset 0 0 0 1px var(--line),0 20px 32px -18px #281e0f99}.term-pop[hidden]{display:none}.term-pop:before{content:"";position:absolute;left:var(--ax, 24px);top:-6px;width:11px;height:11px;rotate:45deg;background:var(--panel);box-shadow:inset 1px 1px 0 var(--line)}.term-q{margin:0;font:11px var(--mono);letter-spacing:1.6px;text-transform:uppercase;color:var(--red)}.term-t{margin:7px 0 0;font-size:14px;line-height:1.5}.term-src{color:var(--red);text-decoration:underline;text-underline-offset:2px}.term-src .ar{display:inline-block;margin-left:2px;font:400 12px var(--mono)}.term-more{display:inline-flex;align-items:center;gap:7px;margin-top:10px;font:700 11px/1.4 var(--sans);letter-spacing:1.2px;text-transform:uppercase;color:var(--red);text-decoration:none}.term-more:hover{text-decoration:underline}.term-more .ar{font:400 13px var(--mono)}.term-x{position:absolute;right:7px;top:5px;width:28px;height:28px;padding:0;border:0;background:none;font:400 21px/1 var(--mono);color:var(--ink-dim);cursor:pointer}.term-x:hover{color:var(--red)}.b-links{display:flex;flex-wrap:wrap;align-items:center;gap:5px 20px;margin:12px 0 0;padding:0;list-style:none}.b-links a{display:flex;gap:8px;font-size:13px;line-height:1.38;text-decoration:none}.b-links a:hover{color:var(--red)}.b-links a:before{content:"";flex:none;width:9px;height:12px;margin-top:2px;border:1px solid var(--red);background:linear-gradient(var(--red),var(--red)) 2px 3px / 3px 1px no-repeat,linear-gradient(var(--red),var(--red)) 2px 6px / 3px 1px no-repeat}.b-links a.tool:before{width:11px;height:11px;background:linear-gradient(var(--red),var(--red)) 50% 50% / 100% 1px no-repeat,linear-gradient(var(--red),var(--red)) 50% 50% / 1px 100% no-repeat}.b-links .more{margin-left:auto}.b-links .more a{font:700 11px/1.4 var(--sans);letter-spacing:1.2px;text-transform:uppercase;color:var(--red)}.b-links .more a:before{display:none}.b-end{height:12vh}.b-next{max-width:var(--w);margin:0 auto;padding:64px var(--pad) 60px;border-top:1px solid var(--line)}.b-next .b-h2{margin-top:12px}.b-next .b-h2 em{font-style:normal;color:var(--red)}.b-next-lead{margin:12px 0 0;max-width:720px;font-size:17px;line-height:1.5;color:#2d2923}.b-opts{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));margin:30px 0 0;padding:1px;list-style:none;background:var(--panel);box-shadow:inset 0 0 0 1px var(--line)}.b-opts li+li{box-shadow:inset 1px 0 0 var(--soft)}.b-opts a{position:relative;display:flex;flex-direction:column;height:100%;min-height:196px;padding:20px 20px 54px;text-decoration:none;transition:background .2s,color .2s}.b-opts b{font-weight:800;font-size:19px;line-height:1.2;letter-spacing:-.01em}.b-opts span{margin-top:9px;font-size:13.5px;line-height:1.5;color:#4d463b;transition:color .2s}.b-opts .ar{position:absolute;left:20px;bottom:18px;margin:0;font:400 20px/1 var(--mono);color:var(--red)}.b-opts a:hover{background:var(--red);color:var(--on-red)}.b-opts a:hover span{color:var(--on-red)}.b-sup{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px 24px;margin-top:34px;padding-top:22px;border-top:1px solid var(--soft)}.b-sup p{margin:0;max-width:640px;font-size:14.5px;line-height:1.5}.b-sup p b{font-weight:800}.b-foot{max-width:var(--w);margin:0 auto;padding:18px var(--pad) 30px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px 20px;border-top:1px solid var(--soft);font:11px var(--mono);color:var(--ink-dim)}.b-foot nav{display:flex;flex-wrap:wrap;gap:6px 16px}.b-foot a{text-decoration:none}.b-foot a:hover{color:var(--red)}.no-js .b-step{height:auto}.no-js .b-pin{position:static;height:auto;display:block}.no-js .sv,.no-js .b-rail{display:none}.no-js .b-body{display:block}@media(min-width:901px)and (max-height:760px){.b-rail{--rp: 16px;padding-top:12px;padding-bottom:12px}.b-pin{padding:12px 0 10px;row-gap:10px}.b-story{margin-bottom:10px;padding-bottom:10px}.b-story .over{display:none}.b-story .b-h2{margin:0;font-size:23px}.b-full{bottom:12px;padding:6px 10px;font-size:10px}.b-chap{gap:10px;margin-bottom:9px}.b-chap .no{min-width:32px;height:32px;font-size:16px}.b-chap .ov{display:none}.b-chap h3{margin:0;font-size:17px}.b-head h4{margin-top:6px;font-size:23px}.b-text{margin-top:6px;max-width:none;font-size:15px;line-height:1.46}.b-links{margin-top:7px}}@media(min-width:901px)and (max-width:1040px){.b-full{position:static;margin-top:9px}}@media(max-width:900px){.b-grid{grid-template-columns:minmax(0,1fr)}.b-rail{display:none}.b-steps{position:relative;padding-left:20px}.b-steps:before{content:"";position:absolute;left:4px;top:0;bottom:0;width:2px;background:var(--ink)}.b-pin{padding:12px 0 8px;row-gap:10px}.b-story{margin-bottom:10px;padding-bottom:10px}.b-story .over{display:none}.b-story .b-h2{margin:0;font-size:20px;line-height:1.14}.b-full{position:static;margin-top:8px;padding:8px 11px;font-size:10.5px;letter-spacing:.8px;gap:7px}.b-chap{gap:10px;margin-bottom:9px}.b-chap .no{min-width:30px;height:30px;font-size:15px}.b-chap .ov{display:none}.b-chap h3{margin:0;font-size:16px}.b-meta{position:relative;font-size:11px;letter-spacing:1px}.b-meta:before{content:"";position:absolute;left:-20px;top:50%;width:10px;height:10px;translate:0 -50%;rotate:45deg;background:var(--red)}.b-head h4{margin-top:6px;font-size:21px}.b-text{margin-top:7px;font-size:14.5px;line-height:1.48}.b-links{gap:3px 14px;margin-top:8px}.b-links a{font-size:12px}.b-links .more{margin-left:0}.b-step.has-ch .b-text,.b-step:first-child .b-text{font-size:14px;line-height:1.42}.b-next{padding-top:48px}.b-opts{grid-template-columns:repeat(2,minmax(0,1fr))}.b-opts li+li{box-shadow:none}.b-opts li:nth-child(2n){box-shadow:inset 1px 0 0 var(--soft)}.b-opts li:nth-child(n+3) a{box-shadow:inset 0 1px 0 var(--soft)}.b-opts a{min-height:150px}}@media(max-width:560px){.b-opts{grid-template-columns:minmax(0,1fr)}.b-opts li:nth-child(2n){box-shadow:none}.b-opts li+li a{box-shadow:inset 0 1px 0 var(--soft)}.b-opts a{min-height:0;padding-bottom:48px}}