:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--ink:#0a0d14;--stone:#121722;--stone-2:#1a2130;--line:#2a3242;--text:#d8dce5;--muted:#8b93a5;--opal:#8fd8ff;--opal-2:#c3abff;--day:#e6eec4;--danger:#ff9b9b;--f-brand:"Marcellus SC", "Times New Roman", serif;--f-mono:"IBM Plex Mono", ui-monospace, Menlo, monospace;--f-display:"ZCOOL XiaoWei", "Songti SC", "STSong", serif;--f-body:"Noto Serif SC", "Songti SC", "STSong", serif;--gutter:18px}html[lang=ja]{--f-display:"Shippori Mincho", "Hiragino Mincho ProN", "Yu Mincho", serif;--f-body:"Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif}html[lang=ja] h1,html[lang=ja] h2,html[lang=ja] .vow b{word-break:auto-phrase}html[lang=en]{--f-display:"Marcellus", "Times New Roman", serif;--f-body:"Noto Serif", Georgia, serif}*,:before,:after{box-sizing:border-box}html{background:var(--ink);-webkit-text-size-adjust:100%}body{background:var(--ink);color:var(--text);font-family:var(--f-body);margin:0;font-size:16px;line-height:1.85;overflow-x:hidden}button,textarea,input{font:inherit}a{color:var(--opal)}:focus-visible{outline:2px solid var(--opal);outline-offset:3px}img{max-width:100%}[hidden]{display:none!important}.wrap{max-width:1040px;padding-inline:var(--gutter);margin:0 auto}h2.title{font-family:var(--f-display);letter-spacing:.06em;text-wrap:balance;margin:0 0 24px;font-size:clamp(26px,6vw,42px);font-weight:400;line-height:1.35}.mono{font-family:var(--f-mono)}.topbar{z-index:3;padding:calc(16px + env(safe-area-inset-top,0px)) var(--gutter) 0;justify-content:space-between;align-items:center;display:flex;position:absolute;top:0;left:0;right:0}.brand{font-family:var(--f-brand);letter-spacing:.2em;color:#eef1f6;font-size:18px;text-decoration:none}.langs{font-family:var(--f-mono);letter-spacing:.08em;gap:4px;font-size:12px;display:flex}.langs a{color:var(--muted);border-radius:4px;padding:8px;text-decoration:none}.langs a[aria-current=true]{color:var(--opal)}.langs a:hover{color:var(--text)}.scene{height:220svh;position:relative}.stage{height:100svh;position:sticky;top:0;overflow:hidden}.stage canvas,.stage__fallback{width:100%;height:100%;display:block;position:absolute;inset:0}.stage__fallback{object-fit:cover;object-position:60% 35%;filter:brightness(.7)}.stage[data-gl=on] .stage__fallback{visibility:hidden}.stage .dust{pointer-events:none}.cap{text-align:center;padding-inline:var(--gutter);z-index:2;pointer-events:none;will-change:opacity, transform;position:absolute;top:50%;left:0;right:0;transform:translateY(-50%)}.kicker{font-family:var(--f-mono);letter-spacing:.14em;color:var(--opal);text-shadow:0 1px 10px #000000e6;text-wrap:balance;margin-bottom:16px;font-size:12px}.cap h1{font-family:var(--f-display);letter-spacing:.12em;color:#f3f5f9;text-shadow:0 0 36px #8fd8ff66,0 2px 18px #000000d9;margin:0;font-size:clamp(36px,11vw,92px);font-weight:400;line-height:1.3}html[lang=en] .cap h1{letter-spacing:.02em;font-size:clamp(30px,7.4vw,72px);line-height:1.2}.cap h1 .ch{white-space:pre;animation:2.2s cubic-bezier(.2,.7,.2,1) both ignite;display:inline-block}@keyframes ignite{0%{opacity:.18;filter:blur(8px)}to{opacity:1;filter:blur()}}.cta{pointer-events:auto;letter-spacing:.08em;color:var(--ink);background:var(--opal);border-radius:4px;margin-top:30px;padding:12px 28px;font-size:16px;font-weight:600;text-decoration:none;transition:box-shadow .2s;display:inline-block;box-shadow:0 0 28px #8fd8ff73}.cta:hover{box-shadow:0 0 40px #8fd8ffb3}.hint{left:50%;bottom:calc(20px + env(safe-area-inset-bottom,0px));font-family:var(--f-mono);letter-spacing:.2em;color:var(--muted);z-index:2;flex-direction:column;align-items:center;gap:8px;font-size:11px;display:flex;position:absolute;transform:translate(-50%)}.hint i{background:linear-gradient(var(--opal), transparent);width:1px;height:34px;animation:2.4s ease-in-out infinite drip}@keyframes drip{0%{transform-origin:top;transform:scaleY(.2)}50%{transform:scaleY(1)}to{transform-origin:bottom;transform:scaleY(.2)}}.ask{background:linear-gradient(to bottom, #e6eec4 0, #5d6650 40px, #161b22 130px, var(--ink) 320px);padding-block:64px 72px}.wrap--narrow{max-width:760px}.visually-hidden{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.steps{gap:14px;margin:0;padding:0;list-style:none;display:grid}.step{scroll-margin-top:16px}.step--enter{animation:.45s ease-out both step-in}@keyframes step-in{0%{opacity:0;transform:translateY(8px)}}.step>*{background:var(--stone);border:1px solid var(--line);border-radius:8px;padding:16px 18px}.step>.step__head+.step__body{border-top:0;border-top-left-radius:0;border-top-right-radius:0;margin-top:-1px;padding-top:4px}.step>.step__head:has(+.step__body){border-bottom:0;border-bottom-right-radius:0;border-bottom-left-radius:0}.step[data-state=active]>*{border-color:#8fd8ff47}.step[data-state=arrived]>*{border-color:#e6eec44d}.step[data-state=done]>.step__head:only-child{padding-block:12px}.step__head{grid-template-columns:minmax(0,1fr) auto;align-items:baseline;column-gap:12px;display:grid}.step__title{letter-spacing:.04em;grid-column:1;margin:0;font-size:18px;font-weight:600}.step[data-state=done] .step__title{color:var(--muted);font-size:15px;font-weight:400}.step__edit{cursor:pointer;color:var(--opal);background:0 0;border:0;grid-area:1/2;padding:4px 0;font-family:inherit;font-size:14px}.step__edit:hover{text-decoration:underline}.step__summary{grid-column:1/-1;min-width:0;margin-top:4px}.step__quote{-webkit-line-clamp:2;color:var(--text);-webkit-box-orient:vertical;display:-webkit-box;overflow:hidden}.step__body{gap:12px;display:grid}.step__body>*{margin:0}textarea{resize:vertical;background:var(--ink);width:100%;min-height:132px;color:var(--text);border:1px solid var(--line);border-radius:6px;padding:12px 14px;font-size:16px;line-height:1.7}textarea:focus{border-color:#8fd8ff99;outline:none;box-shadow:0 0 0 3px #8fd8ff1f}.counter{text-align:right;font-family:var(--f-mono);color:var(--muted);font-size:12px;margin-top:-6px!important}.counter[data-over=true]{color:var(--danger)}.chips{flex-wrap:wrap;gap:8px;display:flex}.chip{color:var(--text);cursor:pointer;border:1px solid var(--line);background:0 0;border-radius:999px;padding:6px 14px;font-size:14px;line-height:1.4;transition:border-color .2s,color .2s}.chip:hover{border-color:#8fd8ff80}.chip[aria-pressed=true]{border-color:var(--opal);color:var(--opal)}.captcha:empty{display:none}.btn{cursor:pointer;border:1px solid #0000;border-radius:6px;justify-content:center;align-items:center;gap:8px;padding:12px 18px;font-size:16px;font-weight:600;text-decoration:none;transition:box-shadow .2s,background .2s,opacity .2s;display:inline-flex}.btn[disabled]{opacity:.55;cursor:wait}.btn--primary{background:var(--opal);width:100%;color:var(--ink);box-shadow:0 0 24px #8fd8ff4d}.btn--primary:hover:not([disabled]){box-shadow:0 0 36px #8fd8ff8c}.btn--ghost{color:var(--opal);border-color:var(--opal);background:0 0}.btn--ghost:hover:not([disabled]){background:#8fd8ff1a}.btn--quiet{color:var(--muted);border-color:var(--line);background:0 0;font-weight:400}.btn--quiet:hover:not([disabled]){color:var(--text)}.fine{color:var(--muted);text-align:center;font-size:13px}.error{color:var(--danger);font-size:14px}.tag{font-family:var(--f-mono);letter-spacing:.08em;border-radius:3px;justify-self:start;padding:1px 8px;font-size:11px}.classic{letter-spacing:.14em;color:var(--day);border-left:2px solid #e6eec466;padding-left:14px;font-family:ZCOOL XiaoWei,Songti SC,serif;font-size:22px}.gloss{padding-left:16px;font-size:15px;margin-top:-8px!important}.classic-src{color:var(--muted);padding-left:16px;font-size:13px;margin-top:-10px!important}.caret{background:var(--opal);vertical-align:-2px;width:1px;height:1.1em;margin-left:2px;animation:1s step-end infinite blink;display:inline-block}@keyframes blink{50%{opacity:0}}.unlock-zone{border-top:1px dashed #8fd8ff40;gap:12px;padding-top:18px;display:grid;margin-top:6px!important}.unlock-zone>*{margin:0}.tester{border:1px dashed var(--line);border-radius:6px;padding:10px;display:grid}.locked{position:relative}.locked__text{filter:blur(5px);opacity:.7;-webkit-user-select:none;user-select:none;margin:0}.locked__veil{background:linear-gradient(to bottom, #12172200, var(--stone) 92%);position:absolute;inset:0}.pay{gap:14px;display:grid}.pay__title{color:var(--muted);margin:0;font-size:15px}.pay__actions{gap:10px;display:grid}.full{gap:18px}.full section h4{color:var(--opal);letter-spacing:.04em;margin:0 0 4px;font-size:16px;font-weight:600}.full section p{white-space:pre-line;margin:0}.full section p.cite{color:var(--muted);margin-top:6px;font-size:12px;line-height:1.6}.warn{color:var(--day);background:#e6eec412;border:1px solid #e6eec440;border-radius:6px;padding:10px 14px;font-size:14px}.actions{gap:10px;display:grid}.save-bar{gap:10px;padding-bottom:6px;display:grid}.disclaimer{color:var(--muted);font-size:12px}.viewer{z-index:50;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);padding:calc(14px + env(safe-area-inset-top,0px)) var(--gutter) calc(14px + env(safe-area-inset-bottom,0px));background:#05070bf0;grid-template-rows:auto auto minmax(0,1fr);gap:8px;display:grid;position:fixed;inset:0}.viewer__bar{grid-template-columns:1fr auto;gap:10px;width:100%;max-width:560px;margin:0 auto;display:grid}.viewer__bar .btn--quiet{width:auto}.viewer__hint{text-align:center;color:var(--muted);margin:0;font-size:13px}.viewer__scroll{-webkit-overflow-scrolling:touch;justify-content:center;display:flex;overflow-y:auto}.viewer__scroll img{border:1px solid var(--line);-webkit-touch-callout:default;border-radius:10px;align-self:flex-start;width:100%;max-width:560px;height:auto}.lighting{text-align:center;padding-block:10px}.lighting__row{justify-content:center;gap:16px;display:flex}.lighting__row span{background:#2a3242;border-radius:50%;width:9px;height:9px;animation:1.4s ease-in infinite alternate lampon}.lighting__row span:nth-child(2){animation-delay:.2s}.lighting__row span:nth-child(3){animation-delay:.4s}.lighting__row span:nth-child(4){animation-delay:.6s}.lighting__row span:nth-child(5){animation-delay:.8s}@keyframes lampon{to{background:var(--opal);box-shadow:0 0 12px 3px #8fd8ffb3}}.lighting p{color:var(--muted);margin:12px 0 0;font-size:14px}.vows-blk{padding-block:56px 72px}.lantern{border:1px solid var(--line);--x:50%;--y:40%;touch-action:pan-y;border-radius:10px;align-items:end;min-height:520px;display:grid;position:relative;overflow:hidden}.lantern img{object-fit:cover;object-position:50% 45%;width:100%;height:100%;position:absolute;inset:0}.lantern__dark{background:radial-gradient(circle 240px at var(--x) var(--y), #0a0d1400 0, #0a0d1440 80px, #0a0d14ed 240px);position:absolute;inset:0}.lantern__body{gap:12px;padding:18px;display:grid;position:relative}.vow{border:1px solid var(--line);-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);background:#0a0d14cc;border-radius:6px;padding:14px 16px}.vow b{font-family:var(--f-display);letter-spacing:.08em;color:#f1f4f8;font-size:21px;font-weight:400;display:block}.vow span{color:var(--muted);font-size:14px}.footer{padding:36px var(--gutter) calc(44px + env(safe-area-inset-bottom,0px));text-align:center;color:var(--muted);border-top:1px solid var(--line);font-size:13px}.footer .brand{color:var(--text);margin-bottom:10px;font-size:16px;display:inline-block}.footer nav{flex-wrap:wrap;justify-content:center;gap:4px 18px;margin-bottom:8px;display:flex}.footer nav a{color:var(--muted);padding-block:6px;text-decoration:none}.footer nav a:hover{color:var(--text)}.legal{padding-block:calc(72px + env(safe-area-inset-top,0px)) 64px;max-width:760px}.legal h1{font-family:var(--f-display);letter-spacing:.06em;margin:0 0 6px;font-size:clamp(26px,6vw,36px);font-weight:400}.legal .updated{color:var(--muted);margin:0 0 24px;font-size:13px}.legal h2{color:var(--opal);margin:28px 0 8px;font-size:17px;font-weight:600}.legal p{margin:0 0 10px}.legal .tbl{border:1px solid var(--line);border-radius:6px;overflow-x:auto}.legal table{border-collapse:collapse;width:100%;font-size:15px}.legal th,.legal td{text-align:left;vertical-align:top;border-bottom:1px solid var(--line);padding:12px 14px}.legal tr:last-child th,.legal tr:last-child td{border-bottom:0}.legal th{width:32%;min-width:7em;color:var(--muted);background:var(--stone-2);font-weight:600}.legal td{overflow-wrap:anywhere}.legal-top{padding-bottom:0;position:static}.about{padding-block:24px 8px}.about h2{font-family:var(--f-display);letter-spacing:.06em;margin:28px 0 10px;font-size:22px;font-weight:400}.about .chips{flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none;display:flex}.about .chips a{border:1px solid var(--line);color:var(--text);border-radius:999px;padding:6px 12px;font-size:14px;text-decoration:none;display:inline-block}.about .chips a:hover{border-color:var(--opal);color:var(--opal)}.about .more{margin:10px 0 0;font-size:14px}.about .more a{color:var(--opal)}.about details{border-bottom:1px solid var(--line);padding:10px 0}.about summary{cursor:pointer;font-weight:600}.about details p{color:var(--muted);margin:8px 0 4px;font-size:15px}.article .crumbs{color:var(--muted);margin:0 0 14px;font-size:13px}.article .crumbs a{color:var(--muted)}.article .crumbs a:hover{color:var(--opal)}.article .lead{color:var(--text);margin:0 0 8px;font-size:17px}.article h3{color:var(--text);margin:16px 0 4px;font-size:15px;font-weight:600}.article .qa p{color:var(--text)}.article .study{color:var(--muted);border-left:2px solid var(--line);padding-left:12px;font-size:15px}.article .study cite{margin-top:2px;font-size:13px;font-style:normal;display:block}.article .classic-line{background:var(--stone);border:1px solid var(--line);border-radius:6px;margin:12px 0;padding:12px 16px}.article .classic-line blockquote{font-family:var(--f-display);color:var(--day);letter-spacing:.04em;margin:0;font-size:18px}.article .classic-line figcaption{color:var(--muted);margin-top:4px;font-size:14px}.article .chips{flex-wrap:wrap;gap:8px;margin:8px 0 0;padding:0;list-style:none;display:flex}.article .chips a{border:1px solid var(--line);color:var(--text);border-radius:999px;padding:6px 12px;font-size:14px;text-decoration:none;display:inline-block}.article .chips a:hover{border-color:var(--opal);color:var(--opal)}.article .cta-box{background:linear-gradient(#8fd8ff0f,#0000);border:1px solid #8fd8ff59;border-radius:10px;margin:36px 0 8px;padding:20px}.article .cta-box h2{margin-top:0}.article .cta-box .btn{text-align:center;margin-top:6px;text-decoration:none;display:block}@media (min-width:640px){.article .cta-box .btn{width:auto;padding-inline:28px;display:inline-block}}@media (min-width:760px){:root{--gutter:24px}.kicker{letter-spacing:.2em;font-size:13px}.step>*{padding:20px 24px}.pay__actions,.actions{grid-template-columns:1fr 1fr}.ask{padding-block:88px}.vows-blk{padding-block:72px 88px}.lantern{min-height:460px}.lantern__body{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;padding:28px}}@media (prefers-reduced-motion:reduce){.scene{height:auto}.stage{height:92svh;position:relative}.cap h1 .ch,.hint i,.caret,.lighting__row span,.step--enter{animation:none!important}.hint{display:none}}
