:root{color-scheme:light;--bg: #F5F5F7;--surface: #FFFFFF;--label: #1D1D1F;--label-2: #6E6E73;--label-3: #86868B;--sep: rgba(60, 60, 67, 0.18);--fill: rgba(118, 118, 128, 0.12);--fill-2: rgba(118, 118, 128, 0.2);--still: #E3E3E8;--bar: rgba(245, 245, 247, 0.78);--cyan: #1EA8D5;--cyan-press: #1693BD;--on-cyan: #00222E;--cyan-text: #0A77A0;--select: rgba(30, 168, 213, 0.24);--danger: #D70015;--shadow-still: 0 1px 2px rgba(0, 0, 0, 0.06), 0 18px 40px -16px rgba(0, 0, 0, 0.28);--shadow-menu: 0 10px 30px rgba(0, 0, 0, 0.16), 0 0 0 0.5px rgba(0, 0, 0, 0.08);--font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", system-ui, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--ease: cubic-bezier(0.2, 0.8, 0.2, 1)}@media (prefers-color-scheme: dark){:root{color-scheme:dark;--bg: #000000;--surface: #1C1C1E;--label: #F5F5F7;--label-2: #A1A1A6;--label-3: #8D8D93;--sep: rgba(84, 84, 88, 0.6);--fill: rgba(118, 118, 128, 0.24);--fill-2: rgba(118, 118, 128, 0.36);--still: #2C2C2E;--bar: rgba(22, 22, 23, 0.78);--cyan: #38C6F0;--cyan-press: #66D3F4;--on-cyan: #00161E;--cyan-text: #5CD2F6;--select: rgba(56, 198, 240, 0.32);--danger: #FF6961;--shadow-still: 0 0 0 0.5px rgba(255, 255, 255, 0.1), 0 18px 40px -16px rgba(0, 0, 0, 0.8);--shadow-menu: 0 10px 30px rgba(0, 0, 0, 0.6), 0 0 0 0.5px rgba(255, 255, 255, 0.12)}}*,*::before,*::after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-padding-top:64px;scrollbar-color:color-mix(in srgb,var(--label-2) 45%,transparent) transparent}body{margin:0;background:var(--bg);color:var(--label);font:400 17px/1.47 var(--font);letter-spacing:-0.022em;font-variant-numeric:tabular-nums;-webkit-font-smoothing:antialiased;caret-color:var(--cyan-text)}::selection{background:var(--select)}:lang(ja) :is(h1,h2,p,dd,dt,summary,li){word-break:auto-phrase;line-break:strict}h1,h2,h3,p,ol,ul,dl,dd,figure,fieldset{margin:0}ol,ul{padding:0}fieldset{border:0;padding:0;min-width:0}a{color:var(--cyan-text);text-underline-offset:3px}button,input,select{font:inherit;letter-spacing:inherit;color:inherit}img{display:block;max-width:100%}:focus-visible{outline:3px solid var(--cyan-text);outline-offset:2px;border-radius:6px}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}.icon{width:20px;height:20px;flex:none}.wrap{width:calc(100% - 32px);margin-inline:auto}@media (min-width: 600px){.wrap{width:calc(100% - 48px)}}@media (min-width: 735px){.wrap{width:calc(100% - 64px)}}@media (min-width: 1069px){.wrap{width:1080px}}@media (min-width: 1441px){.wrap{width:1280px}}.skip{position:absolute;left:12px;top:-60px;z-index:20;padding:10px 16px;border-radius:22px;background:var(--label);color:var(--bg);font-weight:600;text-decoration:none;transition:top 0.2s var(--ease)}.skip:focus-visible{top:8px}.bar{position:sticky;top:0;z-index:10;background:var(--bar);-webkit-backdrop-filter:saturate(180%) blur(20px);backdrop-filter:saturate(180%) blur(20px);border-bottom:0.5px solid var(--sep)}.bar__in{height:52px;display:flex;align-items:center;justify-content:space-between;gap:12px}.brand{display:inline-flex;align-items:center;gap:9px;min-height:44px;color:var(--label);text-decoration:none;font-weight:600;font-size:17px;letter-spacing:-0.02em;border-radius:8px}.mark{width:28px;height:28px;flex:none}.mark__tile{fill:var(--cyan)}.mark__ink{stroke:var(--on-cyan);fill:none}.lang{position:relative}.lang summary{list-style:none;display:inline-flex;align-items:center;gap:6px;height:36px;padding:0 12px;border-radius:18px;color:var(--label-2);font-size:15px;cursor:pointer;transition:background-color 0.16s,color 0.16s}.lang summary::-webkit-details-marker{display:none}.lang summary:hover,.lang[open] summary{background:var(--fill);color:var(--label)}.lang summary:active{transform:scale(0.97)}.lang summary .icon{width:18px;height:18px}.lang__chev{width:14px!important;height:14px!important;transition:transform 0.2s var(--ease)}.lang[open] .lang__chev{transform:rotate(180deg)}.lang__menu{position:absolute;right:0;top:calc(100% + 6px);min-width:200px;list-style:none;padding:6px;background:var(--surface);border-radius:12px;box-shadow:var(--shadow-menu)}.lang__menu a{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:40px;padding:0 12px;border-radius:8px;color:var(--label);text-decoration:none;font-size:15px}.lang__menu a:hover{background:var(--fill)}.lang__menu a:active{background:var(--fill-2)}.lang__on{width:18px;height:18px;color:var(--cyan-text)}.hero{padding-top:22px}.hero h1{font-size:34px;line-height:41px;font-weight:700;letter-spacing:0.011em;text-wrap:balance}.hero__lede{margin-top:6px;color:var(--label-2);font-size:17px;line-height:1.4;max-width:46ch;text-wrap:pretty}@media (min-width: 1069px){.hero__lede{max-width:none}}@media (min-width: 735px){.hero{padding-top:40px}.hero__lede{font-size:20px;line-height:1.35}}.hero--doc,.doc{max-width:760px;margin-inline:auto}.hero--doc .btn{margin-top:20px}.tool{margin-top:18px}.field{display:grid;grid-template-columns:minmax(0,1fr);gap:10px}@media (min-width: 735px){.field{grid-template-columns:minmax(0,1fr) auto;align-items:center}}.field__box{position:relative;display:flex;align-items:center;gap:8px;height:56px;padding:0 8px 0 14px;background:var(--surface);border-radius:14px;box-shadow:inset 0 0 0 1px var(--sep);transition:box-shadow 0.16s}.field__box:focus-within{box-shadow:inset 0 0 0 2px var(--cyan-text)}.field[data-invalid] .field__box{box-shadow:inset 0 0 0 1.5px var(--danger)}.field__icon{color:var(--label-3)}.field__input{flex:1;width:0;min-width:0;height:100%;border:0;background:transparent;outline:none;font-size:17px;text-overflow:ellipsis}.field__input::placeholder{color:var(--label-2)}.field__clear,.field__paste{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:6px;height:36px;border:0;border-radius:18px;cursor:pointer;transition:background-color 0.16s,transform 0.12s}.field__paste{padding:0 14px 0 10px;background:var(--fill);font-size:15px;font-weight:600}.field__clear{width:36px;background:transparent;color:var(--label-3)}.field__paste:hover,.field__clear:hover{background:var(--fill-2);color:var(--label)}.field__paste:active,.field__clear:active{transform:scale(0.96)}.field__paste .icon{width:18px;height:18px}@media (max-width: 430px){.field__paste span{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}.field__paste{width:36px;padding:0}}.field__error{display:flex;gap:8px;align-items:flex-start;margin:10px 4px 0;color:var(--danger);font-size:15px;line-height:20px}.field__error .icon{margin-top:0}.btn{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:7px;height:44px;padding:0 20px;border:0;border-radius:22px;font-size:15px;font-weight:600;letter-spacing:-0.01em;text-decoration:none;white-space:nowrap;cursor:pointer;transition:background-color 0.16s,transform 0.12s var(--ease),opacity 0.16s}.btn .icon{width:18px;height:18px}.btn:active{transform:scale(0.97)}.btn:focus-visible{border-radius:22px}.btn--go{background:var(--cyan);color:var(--on-cyan);font-size:17px}.btn--go:hover{background:var(--cyan-press)}.btn--fill{background:var(--fill);color:var(--label)}.btn--fill:hover{background:var(--fill-2)}.btn[aria-disabled=true],.btn:disabled{opacity:0.4;pointer-events:none}.field .btn--go{height:50px;border-radius:25px;padding:0 28px}.field .btn--go:focus-visible{border-radius:25px}.stage{margin-top:18px;display:grid;gap:16px}@media (min-width: 735px){.stage:not([data-state=idle]){grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:20px;align-items:start}}@media (min-width: 1069px){.stage:not([data-state=idle]){margin-top:26px;gap:28px}}.stage[data-state=idle] .still{display:none}.still__frame{position:relative;aspect-ratio:var(--ar, 16 / 9);max-height:70vh;border-radius:14px;overflow:hidden;background:var(--still);box-shadow:var(--shadow-still)}.still__img{width:100%;height:100%;object-fit:contain}.stage[data-state=idle] .still__frame{box-shadow:none}.still__time{position:absolute;right:10px;bottom:10px;padding:2px 8px;border-radius:6px;background:rgba(0,0,0,0.6);color:#fff;font-size:13px;font-weight:600;line-height:20px}.scale{position:relative;margin-top:14px;width:min(100%,280px);aspect-ratio:var(--ar, 16 / 9)}.scale:empty{display:none}.frame{position:absolute;left:0;bottom:0;width:calc(var(--w) * 100%);aspect-ratio:var(--ar);border:1px solid var(--label-3);border-radius:3px;transition:border-color 0.2s}.frame__label{position:absolute;right:5px;top:1px;font-size:13px;line-height:18px;color:var(--label-2)}.frame.is-picked{border:2px solid var(--label)}.frame.is-picked .frame__label{color:var(--label);font-weight:600}.frame:not(:first-child) .frame__label{top:auto;bottom:1px}.frame:not(:first-child):not(.is-picked) .frame__label{display:none}.credits{background:var(--surface);border-radius:14px;padding:22px 16px 18px}@media (min-width: 600px){.credits{padding:26px 28px 22px}}@media (max-width: 599px){.credit,.track{grid-template-columns:minmax(0,5fr) minmax(0,7fr);column-gap:14px}}.credits__title{text-align:center;font-size:22px;line-height:28px;font-weight:700;letter-spacing:-0.01em;text-wrap:balance;overflow-wrap:anywhere}.credits__list{margin-top:14px;display:grid;gap:2px}.credit{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);column-gap:22px;align-items:baseline;padding:5px 0}.credit dt{text-align:right;color:var(--label-2);font-size:13px;line-height:18px;font-weight:600;letter-spacing:0.08em;text-transform:uppercase;overflow-wrap:anywhere}.credit dd{font-size:17px;line-height:23px;overflow-wrap:anywhere;text-wrap:pretty}.credit dd .nb{white-space:nowrap}.stage[data-state=idle] .credit dd{color:var(--label-2);font-size:15px;line-height:20px}.credit--file.is-saved dd{color:var(--label);font-weight:600}.credit.is-landing{animation:credit-land 0.42s var(--ease) both;animation-delay:calc(var(--i) * 70ms)}@keyframes credit-land{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}.stage[data-state=reading] .credits__list{opacity:0.4;transition:opacity 0.2s}.qualities{margin-top:18px;display:flex;flex-wrap:wrap;justify-content:center;gap:8px}.q{position:relative;display:inline-flex;align-items:center;gap:7px;height:36px;padding:0 14px;border-radius:18px;background:var(--fill);font-size:15px;font-weight:600;cursor:pointer;transition:background-color 0.16s,color 0.16s,transform 0.12s}.q input{position:absolute;inset:0;margin:0;opacity:0;cursor:pointer}.q__size{font-weight:400;color:var(--label-2);font-size:13px}.q:hover{background:var(--fill-2)}.q:active{transform:scale(0.97)}.q:has(input:checked){background:var(--label);color:var(--bg)}.q:has(input:checked) .q__size{color:color-mix(in srgb,var(--bg) 72%,var(--label))}.q:has(input:focus-visible){outline:3px solid var(--cyan-text);outline-offset:2px}.qualities:disabled .q{opacity:0.5;pointer-events:none}.progress{margin-top:16px;display:grid;gap:6px}.track{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);column-gap:22px;align-items:center;--p: 0}.track__name{text-align:right;color:var(--label-2);font-size:13px;font-weight:600;letter-spacing:0.08em;text-transform:uppercase}.track__line{position:relative;height:12px;display:block}.track__line::before{content:"";position:absolute;left:0;right:0;top:50%;border-top:1px dashed var(--label-3)}.track__fill{position:absolute;left:0;top:calc(50% - 1px);height:2px;width:calc(var(--p) * 100%);background:var(--label);border-radius:1px;transition:width 0.4s var(--ease)}.track__count{grid-column:2;font-size:13px;color:var(--label-2);line-height:16px}.track[data-state=landed] .track__line::before{border-top-style:solid;border-color:var(--label)}.track[data-state=stopped] .track__line::before{border-color:var(--danger)}.track[data-state=stopped] .track__fill{background:var(--danger)}.progress__bytes{text-align:center;font-size:15px;color:var(--label-2);margin-top:4px}.actions{margin-top:18px;display:flex;flex-wrap:wrap;justify-content:center;gap:10px}.caps{display:inline-flex;flex-wrap:wrap;justify-content:center;gap:8px;align-items:center;max-width:100%}.caps__select{height:44px;padding:0 34px 0 14px;border:0;border-radius:22px;background:var(--fill) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236E6E73' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m7 9.5 5 5 5-5'/%3E%3C/svg%3E") no-repeat right 12px center / 16px;font-size:15px;font-weight:600;appearance:none;cursor:pointer;max-width:min(220px,100%);text-overflow:ellipsis}.caps__select:hover{background-color:var(--fill-2)}@media (prefers-color-scheme: dark){.caps__select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23A1A1A6' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m7 9.5 5 5 5-5'/%3E%3C/svg%3E")}}.caps__select:focus-visible{border-radius:22px}.credits__note{margin-top:12px;text-align:center;font-size:15px;line-height:20px;color:var(--label-2);text-wrap:pretty}.credits__note:empty{display:none}.tool__noscript{margin-top:12px;color:var(--label-2)}.prose{max-width:760px;margin:64px auto 0}@media (min-width: 1069px){.prose{margin-top:88px}}.prose__sec+.prose__sec{margin-top:44px}.prose h2,.doc h2{font-size:22px;line-height:28px;font-weight:700;letter-spacing:-0.01em;margin-bottom:10px;text-wrap:balance}.prose p+p,.doc p+p{margin-top:12px}.prose p,.doc p{text-wrap:pretty}.steps{list-style:none;counter-reset:s;display:grid;gap:14px}.steps li{counter-increment:s;position:relative;padding-left:44px}.steps li::before{content:counter(s);position:absolute;left:0;top:0;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:var(--fill);font-size:15px;font-weight:700}.group{background:var(--surface);border-radius:12px;overflow:hidden}.faq details+details{border-top:0.5px solid var(--sep)}.faq summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:52px;padding:13px 16px;font-weight:600;cursor:pointer;transition:background-color 0.16s}.faq summary::-webkit-details-marker{display:none}.faq summary:hover{background:var(--fill)}.faq summary:focus-visible{outline-offset:-3px;border-radius:12px}.faq__chev{width:18px;height:18px;color:var(--label-3);transition:transform 0.2s var(--ease)}.faq details[open] .faq__chev{transform:rotate(180deg)}.faq details p{padding:0 16px 16px;color:var(--label-2);font-size:15px;line-height:1.47}.doc{margin-top:18px}.doc h2{margin-top:32px}.doc__date{color:var(--label-2);font-size:15px}.foot{margin-top:96px;padding:28px 0 40px;border-top:0.5px solid var(--sep);font-size:13px;color:var(--label-2)}.foot__cols{display:grid;grid-template-columns:repeat(2,minmax(0,200px));gap:24px;margin-bottom:20px}.foot__cols h2{font-size:13px;font-weight:600;color:var(--label);margin-bottom:6px;letter-spacing:0}.foot__cols ul{list-style:none;display:grid;gap:2px}.foot__cols a{display:inline-flex;align-items:center;min-height:30px;color:var(--label-2);text-decoration:none}.foot__cols a:hover{color:var(--label);text-decoration:underline}.foot__note{max-width:760px;line-height:18px}.foot__note+.foot__note{margin-top:6px}@media (pointer: coarse){.field__paste::after,.field__clear::after,.q::after{content:"";position:absolute;inset:-4px}.lang summary{height:44px;border-radius:22px}.q{height:40px;border-radius:20px}.foot__cols a{display:flex;min-height:44px;min-width:44px}.foot__cols li{display:block}}@media (prefers-reduced-motion: reduce){*,*::before,*::after{transition-duration:0.01ms!important;animation:none!important}}