.phead{z-index:1;padding-block:clamp(7rem,18vh,11rem) clamp(3rem,8vh,5rem);position:relative}.phead__trail{color:var(--grey);text-transform:uppercase;letter-spacing:.12em;font-size:var(--t-micro);align-items:center;gap:.6rem;margin-bottom:1.6rem;display:flex}.phead__trail a{color:var(--grey);transition:color var(--dur-fast) var(--ease)}.phead__trail a:hover{color:var(--cyan-deep)}.phead__trail span[aria-hidden]{color:var(--line)}.phead__trail>span:last-child{color:var(--ink)}.phead__title{max-width:22ch;margin:0;font-size:clamp(min(2.3rem,10.5vw - 4.2px),5.6vw,5rem)}.phead__lede{max-width:52ch;font-size:var(--t-md);margin-top:clamp(1.6rem,4vh,2.4rem)}.phead+.band,:where(main>div:first-child)+.band{padding-top:clamp(2rem,6vh,4.5rem)}.dom{--g:clamp(2.4rem, 4.4vw, 4rem);column-gap:var(--g);border-top:1px solid var(--line);grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr));row-gap:0;display:grid;overflow-x:clip}.dom__card{padding:1.7rem 0 2rem;position:relative}.dom__card:before,.dom__card:after{content:"";pointer-events:none;position:absolute}.dom__card:before{top:0;bottom:0;left:calc(var(--g) / -2);border-left:1px solid var(--line-soft)}.dom__card:after{left:calc(var(--g) / -2);right:calc(var(--g) / -2);border-bottom:1px solid var(--line-soft);bottom:0}.dom__head{margin-bottom:1.3rem}.dom__n{color:var(--grey);margin-bottom:1.1rem;display:block}.dom__key{letter-spacing:.09em;margin:0 0 .4rem;font-size:clamp(1rem,1.3vw,1.2rem)}.dom__note{color:var(--grey);font-size:var(--t-micro);letter-spacing:.08em;margin:0}.dom__body{font-size:var(--t-sm);color:var(--ink);max-width:42ch;margin:0 0 1.1rem;line-height:1.6}.dom__items{color:var(--grey);font-size:var(--t-micro);gap:.42rem;margin:0;padding:0;line-height:1.5;list-style:none;display:grid}.dom__items li{text-indent:-2ch;padding-left:2ch}.dom__items li:before{content:"· ";color:var(--cyan)}.carriers{border-top:1px solid var(--line);margin-top:clamp(2.5rem,6vh,4rem);padding-top:1.6rem}.carriers__list{flex-wrap:wrap;gap:.45rem;margin:1rem 0 0;padding:0;list-style:none;display:flex}.carriers__list li{border:1px solid var(--line);color:var(--grey);text-transform:uppercase;letter-spacing:.1em;font-size:var(--t-micro);border-radius:999px;padding:.36rem .8rem}.caps{--g:clamp(2rem, 4vw, 3.6rem);grid-template-columns:repeat(var(--cols,4), minmax(0, 1fr));column-gap:var(--g);border-top:1px solid var(--line);row-gap:0;margin:0 0 clamp(3rem,8vh,5rem);display:grid;overflow-x:clip}@media (width<=1100px){.caps{grid-template-columns:repeat(2,minmax(0,1fr))!important}}@media (width<=620px){.caps{grid-template-columns:1fr!important}}.cap{padding:1.4rem 0 1.6rem;position:relative}.cap:before,.cap:after{content:"";pointer-events:none;position:absolute}.cap:before{top:0;bottom:0;left:calc(var(--g) / -2);border-left:1px solid var(--line-soft)}.cap:after{left:calc(var(--g) / -2);right:calc(var(--g) / -2);border-bottom:1px solid var(--line-soft);bottom:0}.cap__k{font-weight:500;font-size:var(--t-md);margin:0 0 .5rem;line-height:1.3}.cap__v{font-size:var(--t-sm);color:var(--grey);margin:0;line-height:1.55}.equation{border-top:1px solid var(--line);flex-wrap:wrap;align-items:center;gap:1rem clamp(1.2rem,3vw,2.4rem);padding:clamp(1.8rem,4vh,2.6rem) 0 0;display:flex}.equation__terms{flex-wrap:wrap;align-items:center;gap:.9rem clamp(1rem,2.4vw,2rem);margin:0;padding:0;list-style:none;display:flex}.equation__terms li{align-items:center;gap:clamp(1rem,2.4vw,2rem);display:flex}.equation__term{letter-spacing:.08em;font-size:clamp(1rem,1.7vw,1.45rem)}.equation__op{color:var(--grey);font-family:var(--f-mono);font-size:1.1rem}.equation__op--eq{color:var(--cyan-deep);font-size:1.4rem}.equation__result{letter-spacing:.06em;color:var(--cyan-deep);margin:0;font-size:clamp(1.2rem,2.4vw,2rem)}.pnav{z-index:1;border-top:1px solid var(--line);position:relative}.pnav__inner{background:var(--line);grid-template-columns:1fr 1fr;gap:1px;max-width:none;padding:0;display:grid}.pnav__side{padding:clamp(1.8rem, 4vh, 2.6rem) var(--gutter);background:var(--paper);transition:background var(--dur-fast) var(--ease);flex-direction:column;gap:.35rem;display:flex}.pnav__side--next{text-align:right;align-items:flex-end}a.pnav__side:hover{background:var(--paper-hi)}.pnav__side.is-soon{opacity:.45}.pnav__label{color:var(--grey);text-transform:uppercase;letter-spacing:.12em;font-size:var(--t-micro)}.pnav__id{color:var(--grey);font-size:var(--t-micro)}.pnav__name{letter-spacing:.08em;transition:color var(--dur-fast) var(--ease);font-size:clamp(1.3rem,2.6vw,2rem)}a.pnav__side:hover .pnav__name{color:var(--cyan-deep)}.pnav__desc{color:var(--grey);font-size:var(--t-micro)}@media (width<=640px){.pnav__inner{grid-template-columns:1fr}.pnav__side--next{text-align:left;align-items:flex-start}}.nda__grid{grid-template-columns:minmax(0,.9fr) minmax(0,1.35fr);align-items:start;gap:2.5rem clamp(2rem,6vw,6rem);display:grid}.nda__title{font-size:var(--t-lg);max-width:14ch;margin:1.1rem 0 1.3rem}.nda__say .lede{max-width:40ch}.nda__terms{border-top:1px solid var(--line);margin:0}.nda__term{border-bottom:1px solid var(--line-soft);padding:1.05rem 0}.nda__term dt{font-weight:500;font-size:var(--t-md);margin:0 0 .4rem}.nda__term dd{color:var(--grey);font-size:var(--t-sm);max-width:62ch;margin:0;line-height:1.6}@media (width<=900px){.nda__grid{grid-template-columns:1fr}}.qlist{border-top:1px solid var(--line);margin:0;padding:0;list-style:none}.qlist__item{border-bottom:1px solid var(--line-soft);grid-template-columns:3.5rem 1fr;align-items:baseline;gap:1rem;padding:.95rem 0;display:grid}.qlist__n{color:var(--grey)}.qlist__q{letter-spacing:.06em;font-size:clamp(1rem,1.9vw,1.5rem)}.pubs{border-top:1px solid var(--line);margin:0;padding:0;list-style:none}.pub{border-bottom:1px solid var(--line-soft);grid-template-columns:4rem minmax(0,1fr) auto;align-items:baseline;gap:.4rem 1.4rem;padding:1.2rem 0;display:grid}.pub__n{color:var(--grey)}.pub__k{letter-spacing:.08em;margin:0 0 .35rem;font-size:clamp(.98rem,1.4vw,1.2rem)}.pub__v{color:var(--grey);font-size:var(--t-sm);max-width:62ch;margin:0;line-height:1.55}.pub__flag{color:var(--cyan-deep);text-transform:uppercase;letter-spacing:.12em;font-size:var(--t-micro);white-space:nowrap}@media (width<=700px){.pub{grid-template-columns:2.6rem 1fr}.pub__flag{grid-column:2}}.principle__grid{grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);align-items:start;gap:2rem clamp(2rem,6vw,6rem);display:grid}.principle__title{font-size:var(--t-lg);max-width:18ch;margin:0}.principle__body-row{font-size:var(--t-md);align-items:center;gap:1.1rem;max-width:50ch;display:flex}.principle__body-mark{width:auto;height:3rem;color:var(--grey);flex:none}.principle__body{margin:0;line-height:1.6}@media (width<=900px){.principle__grid{grid-template-columns:1fr}}.chain__note-row.principle__note{grid-column:1/-1;margin-top:clamp(2rem,5vh,3rem)}.outs__go.principle__go{grid-column:1/-1;margin-top:clamp(1rem,3vh,1.6rem)}.principle__head .principle__title{margin-top:1.1rem}:is(#trace,#desk) .principle__body-row{flex-direction:column;align-items:flex-start;gap:1.1rem;max-width:54ch}:is(#trace,#desk) .principle__body{text-wrap:pretty}@media (width>=1001px){.dom:has(>:nth-child(6):last-child),.steps:has(>:nth-child(6):last-child){grid-template-columns:repeat(3,minmax(0,1fr))}.steps:has(>:nth-child(7):last-child){grid-template-columns:repeat(4,minmax(0,1fr))}}@media (width>=761px){#serial .passport{grid-template-columns:repeat(3,minmax(0,1fr))}}#handles .dom__card{grid-row:span 2;grid-template-rows:subgrid;row-gap:0;display:grid}#handles .dom__items{align-content:start}#recognition .step{grid-row:span 4;grid-template-rows:subgrid;row-gap:0;display:grid}@media (width<=700px){.principle__body-row{flex-direction:column;align-items:flex-start;gap:.7rem}.principle__body-mark{height:2.4rem}}.flow{flex-wrap:wrap;gap:.5rem;margin:0;padding:0;list-style:none;display:flex}.flow__step{border:1px solid var(--line);border-radius:999px;align-items:baseline;gap:.55rem;padding:.5rem .9rem;display:flex}.flow__n{color:var(--cyan-deep);font-size:var(--t-micro)}.flow__k{font-size:var(--t-sm)}.passport{border-top:1px solid var(--line);color:var(--grey);font-size:var(--t-sm);grid-template-columns:repeat(auto-fit,minmax(min(100%,240px),1fr));gap:.5rem 2rem;margin:0;padding:1.4rem 0 0;list-style:none;display:grid}.passport li{text-indent:-.6em;padding-left:.6em}.passport li:before{content:"· ";color:var(--cyan)}.legal__inner{max-width:none}.legal__block{margin-inline:0;border-top:1px solid var(--line);max-width:68ch;margin-top:1.8rem;padding-top:1.8rem}.legal__block:first-child{margin-top:0}.legal__k{letter-spacing:.1em;margin:0 0 1rem;font-size:1.05rem}.legal__items{gap:.85rem;margin:0;padding:0;list-style:none;display:grid}.legal__items li{padding-left:1.1rem;line-height:1.65;position:relative}.legal__items li:before{content:"·";color:var(--cyan);position:absolute;left:0}.legal__items strong{font-weight:500}.legal__stamp{border-top:1px solid var(--line);max-width:68ch;color:var(--grey);margin:2.6rem 0 0;padding-top:1.4rem;line-height:1.7}.outs{border-top:1px solid var(--line);grid-template-columns:repeat(auto-fit,minmax(min(100%,220px),1fr));gap:clamp(1.8rem,4vh,2.6rem) clamp(1.2rem,2.4vw,2.4rem);padding-top:1.4rem;display:grid}.outs__k{letter-spacing:.09em;margin:0 0 .35rem;font-size:clamp(1rem,1.3vw,1.2rem)}.outs__note{color:var(--grey);font-size:var(--t-micro);letter-spacing:.08em;margin:0 0 .9rem}.outs ul{color:var(--grey);font-size:var(--t-micro);gap:.42rem;margin:0;padding:0;line-height:1.5;list-style:none;display:grid}.outs ul li:before{content:"· ";color:var(--cyan)}.record{border-top:1px solid var(--line);margin-top:clamp(2.5rem,6vh,4rem);padding-top:1.6rem}.record__title{letter-spacing:.06em;margin:.6rem 0 0;font-size:clamp(1.15rem,1.9vw,1.6rem)}.record .lede{max-width:54ch;margin:.9rem 0 1.4rem}.outs__go{flex-wrap:wrap;align-items:baseline;gap:1rem clamp(1rem,2vw,1.6rem);margin-top:clamp(1.6rem,4vh,2.4rem);display:flex}.outs__go .mono{color:var(--grey);font-size:var(--t-micro);letter-spacing:.08em}.chain__note-row{max-width:62ch;color:var(--grey);font-size:var(--t-sm);align-items:center;gap:1rem;margin:clamp(1.6rem,4vh,2.4rem) 0 0;display:flex}.chain__note-mark{flex:none;width:auto;height:2.6rem}.chain__note{margin:0;line-height:1.6}@media (width<=700px){.chain__note-row{flex-direction:column;align-items:flex-start;gap:.7rem}.chain__note-mark{height:2.2rem}}.phead--film{flex-direction:column;justify-content:flex-end;min-height:min(78svh,760px);padding-block:clamp(7rem,18vh,11rem) clamp(3.5rem,9vh,6rem);display:flex;position:relative;overflow:clip}.phead__plate{z-index:-1;pointer-events:none;position:absolute;inset:-3%}.phead__plate:after{content:"";z-index:1;pointer-events:none;background:linear-gradient(104deg, var(--paper) 0%, color-mix(in srgb, var(--paper) 68%, transparent) 32%, color-mix(in srgb, var(--paper) 26%, transparent) 54%, transparent 72%);position:absolute;inset:0}.phead__still,.phead__film{object-fit:cover;object-position:var(--film-pos,62% 52%);width:100%;height:100%;filter:grayscale(.82) brightness(1.02) contrast(.94) blur(var(--plate-blur,1px));transform:scale(var(--plate-scale,1.04));opacity:var(--plate-op,.48);position:absolute;inset:0;mask-image:radial-gradient(92% 110% at 72% 42%,#000 40%,#0000 94%)}.phead__film{opacity:0;transition:opacity var(--film-fondu,.9s) linear}.phead__film[data-on],.phead__plate[data-film] .phead__film:only-of-type{opacity:var(--plate-op,.48)}.phead__plate[data-film] .phead__still{opacity:0;transition:opacity .7s var(--ease)}