:root{color-scheme:dark;--color-paper:oklch(15.5% 0.024 256);--color-paper-2:oklch(19.5% 0.028 256);--color-paper-3:oklch(24% 0.03 256);--color-ink:oklch(95% 0.012 235);--color-ink-2:oklch(84% 0.016 240);--color-muted:oklch(70% 0.024 245);--color-rule:oklch(33% 0.034 256);--color-rule-2:oklch(26% 0.03 256);--color-edge:oklch(56% 0.05 250);--color-accent:oklch(88% 0.075 212);--color-accent-dim:oklch(60% 0.06 225);--color-accent-ink:oklch(17% 0.03 256);--color-focus:oklch(92% 0.1 205);--bloom:oklch(27% 0.055 240);--wash:oklch(88% 0.075 212 / 0.07);--wash-2:oklch(88% 0.075 212 / 0.14);--atmos:radial-gradient(ellipse 64rem 40rem at 88% -8%, var(--bloom), transparent 72%);--font-display:"PingFang TC", "Hiragino Sans CNS", "Noto Sans TC", "Microsoft JhengHei", "Avenir Next", "Helvetica Neue", "Segoe UI", sans-serif;--font-body:"Avenir Next", "Helvetica Neue", "Segoe UI", "PingFang TC", "Hiragino Sans CNS", "Noto Sans TC", "Microsoft JhengHei", sans-serif;--font-mono:ui-monospace, "SF Mono", 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245);--color-accent:oklch(42% 0.11 245);--color-accent-dim:oklch(62% 0.07 240);--color-accent-ink:oklch(97% 0.012 232);--color-focus:oklch(50% 0.17 255);--bloom:oklch(91% 0.045 215);--wash:oklch(42% 0.11 245 / 0.06);--wash-2:oklch(42% 0.11 245 / 0.12)}}:root[data-theme=light]{color-scheme:light;--color-paper:oklch(96.5% 0.013 232);--color-paper-2:oklch(93.5% 0.018 235);--color-paper-3:oklch(90% 0.022 238);--color-ink:oklch(21% 0.04 258);--color-ink-2:oklch(32% 0.04 256);--color-muted:oklch(45% 0.035 252);--color-rule:oklch(79% 0.03 245);--color-rule-2:oklch(86% 0.025 242);--color-edge:oklch(56% 0.055 245);--color-accent:oklch(42% 0.11 245);--color-accent-dim:oklch(62% 0.07 240);--color-accent-ink:oklch(97% 0.012 232);--color-focus:oklch(50% 0.17 255);--bloom:oklch(91% 0.045 215);--wash:oklch(42% 0.11 245 / 0.06);--wash-2:oklch(42% 0.11 245 / 0.12)}*,*::before,*::after{box-sizing:border-box}html{overflow-x:clip;-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-padding-top:5.5rem}body{margin:0;overflow-x:clip;min-height:100dvh;background:var(--atmos)no-repeat fixed,var(--color-paper);color:var(--color-ink-2);font-family:var(--font-body);font-size:var(--text-md);font-weight:400;line-height:1.9;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}body:has(.veil-menu[open]){overflow:hidden}img,svg{max-width:100%}h1,h2,h3,p,ul,ol,dl,dd,figure,fieldset{margin:0}h1,h2,h3,.panel__name,.veil-link__name,.afterword__line{font-family:var(--font-display)}h1,h2,h3{color:var(--color-ink);font-style:normal}a{color:inherit}ul,ol{padding:0}button{font:inherit;color:inherit}small{font-size:.6em;font-weight:400;color:var(--color-muted)}:focus-visible{outline:2px solid 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0;color:var(--color-ink);font-size:var(--text-sm);font-weight:600;line-height:1.2;white-space:nowrap;text-decoration:none;cursor:pointer;transition:background-color var(--dur-short)var(--ease-out),border-color var(--dur-short)var(--ease-out),color var(--dur-short)var(--ease-out),transform 120ms var(--ease-out)}.btn:hover{border-color:var(--color-accent);background:var(--wash-2)}.btn:active{transform:translateY(1px)}.btn[disabled]{opacity:.45;cursor:not-allowed}.btn[disabled]:hover{border-color:var(--color-edge);background:0 0}.btn--sm{min-height:2.25rem;padding:.25rem 1rem;font-size:var(--text-xs)}.btn--solid,.ad-card__go,.ad-bar__go,.ad-line__go{display:inline-flex;align-items:center;justify-content:center;min-height:2.75rem;padding:.5rem 1.5rem;border:1px solid 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var(--color-edge);border-radius:var(--radius-pill);font-size:var(--text-xs);line-height:1.7;color:var(--color-ink-2);white-space:nowrap}.time{font-family:var(--font-mono);font-size:var(--text-xs);color:var(--color-muted);font-variant-numeric:tabular-nums}.ad-flag{display:inline-block;padding:.25rem .5rem;border:1px solid var(--color-muted);border-radius:.4rem;font-size:.75rem;letter-spacing:.14em;line-height:1.7;color:var(--color-muted);white-space:nowrap}.dot{display:inline-block;flex:none;width:.85rem;height:.85rem;margin-inline-end:.5rem;border:1.5px solid var(--color-accent);border-radius:50%;vertical-align:-.1em}[data-state=seen] .dot{background:var(--color-accent)}[data-state=part] .dot{background:linear-gradient(90deg,var(--color-accent) 50%,transparent 50%)}[data-state=hidden] .dot{border-color:var(--color-muted);border-style:dotted}.tide{display:inline-flex;align-items:center;gap:.5rem;min-height:2.5rem;padding:.25rem 1rem;border:1px solid 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.veil-link__name{color:var(--color-accent)}.veil-link__name{font-size:var(--text-xl);font-weight:300;line-height:1.4}.veil-link__n{font-family:var(--font-mono);font-size:var(--text-xs);color:var(--color-muted);white-space:nowrap}.veil-sheet__more{display:flex;flex-wrap:wrap;align-items:center;gap:.75rem 1.5rem;margin:2.5rem 0 0;padding:1.75rem 0 0;border-top:1px solid var(--color-rule);list-style:none}.veil-sheet__more a{display:inline-flex;align-items:center;min-height:2.5rem;color:var(--color-ink);font-weight:600;text-decoration:none}.veil-sheet__more a:hover{color:var(--color-accent)}.opening,.aperture,.asks,.feature,.latest,.trail-block,.topics,.threshold,.reading,.trace,.veil-band__in{width:min(100% - 2 * var(--gutter),var(--page));margin-inline:auto}.opening{position:relative;overflow:clip;padding-block:clamp(2.5rem,6vw,5rem)clamp(3.25rem,8vw,6.5rem)}.opening__rings{position:absolute;z-index:0;right:calc(-1 * 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var(--color-rule-2);border-radius:var(--radius-lg);background:var(--color-paper-2)}.aperture__h{font-size:var(--text-xl);font-weight:300;line-height:1.4;margin-bottom:1.25rem}.board{position:relative;min-width:0;padding:0;border:0}.board__legend{display:block;width:100%;padding:0;margin-bottom:.75rem;font-size:var(--text-xs);color:var(--color-muted)}.board__radio{position:absolute;left:0;top:0;width:1px;height:1px;opacity:0;pointer-events:none}.board__tabs{display:flex;flex-wrap:wrap;gap:.5rem}.board__tab{display:inline-flex;align-items:center;min-height:2.5rem;padding:.25rem 1.25rem;border:1px solid var(--color-edge);border-radius:var(--radius-pill);color:var(--color-ink);font-size:var(--text-sm);font-weight:600;white-space:nowrap;cursor:pointer;transition:background-color var(--dur-short)var(--ease-out),border-color var(--dur-short)var(--ease-out),color var(--dur-short)var(--ease-out)}.board__tab:hover{border-color:var(--color-accent);background:var(--wash-2)}#tool-incognito:checked~.board__tabs label[for=tool-incognito],#tool-vpn:checked~.board__tabs label[for=tool-vpn],#tool-adblock:checked~.board__tabs label[for=tool-adblock],#tool-dns:checked~.board__tabs label[for=tool-dns]{background:var(--color-accent);border-color:var(--color-accent);color:var(--color-accent-ink)}#tool-incognito:focus-visible~.board__tabs label[for=tool-incognito],#tool-vpn:focus-visible~.board__tabs label[for=tool-vpn],#tool-adblock:focus-visible~.board__tabs label[for=tool-adblock],#tool-dns:focus-visible~.board__tabs label[for=tool-dns]{outline:2px solid var(--color-focus);outline-offset:3px}.panel{display:none;animation:veil-in var(--dur-mid)var(--ease-out)}#tool-incognito:checked~.board__panels .panel[data-tool=incognito],#tool-vpn:checked~.board__panels .panel[data-tool=vpn],#tool-adblock:checked~.board__panels .panel[data-tool=adblock],#tool-dns:checked~.board__panels .panel[data-tool=dns]{display:block}.stage{position:relative;margin-top:1.5rem}.stage__rings{display:none}.stage__key{display:block;width:6.5rem;height:auto;margin-bottom:.5rem}.stage__nodes{display:grid;margin:0;padding:0;list-style:none}.node{position:relative;display:flex;align-items:baseline;justify-content:space-between;gap:1rem;padding:1rem 0 1rem 2rem;border-top:1px solid var(--color-rule-2)}.node::before{content:"";position:absolute;left:0;top:1.55rem;width:1.5rem;height:0;border-top:3px solid var(--color-accent);border-radius:2px}.node[data-state=part]::before{border-top:3px dashed var(--color-accent)}.node[data-state=hidden]::before{width:.9rem;border-top:3px dotted var(--color-muted)}.node__who{flex:1;min-width:0;color:var(--color-ink);font-size:var(--text-md);line-height:1.6}.node__state{flex:none;display:inline-flex;align-items:center;color:var(--color-ink-2);font-size:var(--text-sm);white-space:nowrap}.beam{fill:none;stroke-linecap:round}.beam--seen{stroke:var(--color-accent);stroke-width:3.5}.beam--part{stroke:var(--color-accent);stroke-width:2.5;stroke-dasharray:7 9}.beam--hidden{stroke:var(--color-muted);stroke-width:2.6;stroke-dasharray:.1 9}.beam-end--seen{fill:var(--color-accent)}.beam-end--part{fill:var(--color-paper-2);stroke:var(--color-accent);stroke-width:2.5}.beam-stop{fill:var(--color-paper-2);stroke:var(--color-muted);stroke-width:2.5}.panel__note{display:grid;gap:.5rem;margin-top:1.25rem;padding-top:1.5rem;border-top:1px solid var(--color-rule-2);justify-items:start}.panel__name{font-size:var(--text-xl);font-weight:300;line-height:1.3;color:var(--color-ink)}.panel__text{max-width:36rem;font-size:var(--text-sm);line-height:1.95}.board__key{display:flex;flex-wrap:wrap;gap:.5rem 1.75rem;margin:1.5rem 0 0;padding:0;list-style:none;font-size:var(--text-xs);color:var(--color-ink-2)}.board__key li{display:inline-flex;align-items:center}.board__caveat{margin-top:.75rem;font-size:var(--text-xs);color:var(--color-muted)}@media(min-width:48rem){.stage{aspect-ratio:2/1;margin-top:1rem}.stage__rings{display:block;position:absolute;inset:0;width:100%;height:100%}.stage__key{display:none}.stage__nodes{position:absolute;inset:0;display:block}.node{position:absolute;width:28%;display:grid;grid-template-columns:minmax(0,1fr);gap:.25rem;padding:0;border:0;transform:translateY(-50%)}.node::before{display:none}.node[data-slot=lt],.node[data-slot=rt]{top:19.5%}.node[data-slot=lb],.node[data-slot=rb]{top:80.5%}.node[data-slot=lt],.node[data-slot=lb]{left:0;text-align:right}.node[data-slot=lt]>*,.node[data-slot=lb]>*{justify-self:end}.node[data-slot=rt],.node[data-slot=rb]{right:0;text-align:left}.node[data-slot=rt]>*,.node[data-slot=rb]>*{justify-self:start}.node__who{flex:none;font-size:var(--text-sm);line-height:1.5}.node__state{font-size:var(--text-xs);font-weight:600}.panel__note{grid-template-columns:13rem 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var(--dur-mid)}.ad-bar--up{transform:translate(-50%,0);visibility:visible;transition:transform var(--dur-mid)var(--ease-out),visibility 0s}.ad-bar__line{flex:1;min-width:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;font-size:var(--text-sm);line-height:1.55;color:var(--color-ink)}.ad-bar__go{min-height:2.5rem;padding:.5rem 1rem}.ad-bar__close{flex:none;display:grid;place-items:center;width:2.5rem;height:2.5rem;border:0;border-radius:50%;background:0 0;color:var(--color-muted);font-size:1.4rem;line-height:1;cursor:pointer;transition:background-color var(--dur-short)var(--ease-out),color var(--dur-short)var(--ease-out)}.ad-bar__close:hover{background:var(--wash-2);color:var(--color-ink)}@media(max-width:34rem){.ad-bar .ad-flag{display:none}}.reading-line{position:fixed;inset:0 0 auto 0;z-index:60;height:2px;pointer-events:none}.reading-line span{display:block;height:100%;background:var(--color-accent);transform:scaleX(0);transform-origin:left}@supports(animation-timeline:scroll()){.reading-line span{animation:line-grow linear both;animation-timeline:scroll(root)}}@keyframes line-grow{to{transform:scaleX(1)}}.lens-read{position:relative;overflow:hidden;margin:1.75rem 0 0;padding:clamp(1.5rem,4vw,2.5rem);border:1px solid var(--color-rule-2);border-radius:var(--radius-lg);background:var(--color-paper-2)}.lens-read>*:not(svg){position:relative}.lens-read__rings{position:absolute;right:-10rem;opacity:.85;top:30%;width:23rem;height:auto;transform:translateY(-50%);pointer-events:none}.lens-read__bar{display:flex;align-items:center;justify-content:space-between;gap:1rem}.lens-read__label{font-size:var(--text-md);font-weight:500;color:var(--color-ink-2)}.lens-read__tools{display:flex;gap:.5rem}.lens-read__ip{margin:1.5rem 0 1.75rem;min-height:1.25em;font-family:var(--font-mono);font-size:clamp(1.6rem,6.4vw,3.4rem);font-weight:400;line-height:1.25;letter-spacing:-.02em;color:var(--color-accent);overflow-wrap:anywhere;transition:filter var(--dur-mid)var(--ease-out)}.lens-read__ip--masked{filter:blur(.55rem);user-select:none}.lens-read__facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(9.5rem,1fr));gap:0 1.5rem;margin:0}.fact{padding:.75rem 0;border-top:1px solid var(--color-rule);min-width:0}.fact dt{font-size:var(--text-xs);color:var(--color-muted)}.fact dd{font-size:var(--text-md);line-height:1.6;color:var(--color-ink);overflow-wrap:anywhere}.lens-read__status{margin-top:1rem;font-size:var(--text-xs);color:var(--color-muted)}.lens-read__status[role=alert]{color:var(--color-ink)}.skel{display:inline-block;width:70%;height:.9em;border-radius:.4em;background:var(--color-paper-3);animation:skel 1.6s ease-in-out infinite;vertical-align:middle}.skel--s{width:5rem}@keyframes skel{50%{opacity:.45}}.pair{margin:3rem 0 0;padding:2rem 0 0;border-top:1px solid var(--color-rule)}.pair h2{font-size:var(--text-xl);font-weight:600;line-height:1.45;margin-bottom:.5rem}.pair__lede{font-size:var(--text-sm);line-height:1.9;margin-bottom:1.25rem}.pair__cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(13rem,1fr));gap:1rem}.pair__col{min-width:0;padding:1rem 1.25rem;border-radius:var(--radius-md);background:var(--color-paper-2)}.pair__tag{margin-bottom:.5rem;font-size:var(--text-xs);font-weight:600;letter-spacing:.1em;color:var(--color-accent)}.pair dl{margin:0}.pair dt{font-size:var(--text-xs);color:var(--color-muted)}.pair dd{margin:0 0 .5rem;font-family:var(--font-mono);font-size:var(--text-sm);color:var(--color-ink);overflow-wrap:anywhere}.pair__act{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1.25rem}.pair__result{min-height:1.5em;margin-top:1rem;font-size:var(--text-sm);color:var(--color-ink)}.pair__result[data-same="0"]{color:var(--color-accent);font-weight:600}.handoff-page{display:grid;place-items:center;min-height:100dvh;padding:2rem}.handoff{display:grid;gap:1rem;justify-items:center;max-width:26rem;text-align:center}.handoff__rings{width:8rem;height:auto;margin-bottom:.5rem}.handoff__rings .ring--edge{animation:skel 2.4s ease-in-out infinite}.handoff__h{font-size:var(--text-xl);font-weight:300}.handoff__alt,.handoff__back{font-size:var(--text-sm)}.handoff a{color:var(--color-accent);text-underline-offset:.25em}@media(max-width:47.99rem){.opening__rings{opacity:.5;width:17rem;top:3rem;transform:none;right:-5rem}.opening__rings .key-eye,.opening__rings .key-slot{display:none}}@media(max-width:30rem){.wordmark__dom{display:none}.aperture,.feature,.trail{border-radius:var(--radius-md)}}@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}.reading-line span{animation:none}}@media print{body{background:0 0;color:inherit}.mast,.afterword__rings,.reading__thread,.reading__ad,.ad-card,.ad-bar,.ad-line,.reading-line,.veil-band::before{display:none!important}.prose a{color:inherit}}