:root{color-scheme:light;--paper: #f4f1ea;--paper-2: #eae5d8;--ink: #16150f;--ink-soft: #46433a;--ink-faint: #857f6f;--line: #d6d0c0;--warm: #c2522f;--cool: #2f5d63;--ease-out: cubic-bezier(.16, 1, .3, 1);--serif: "Songti SC", "Noto Serif CJK SC", "Source Han Serif SC", Georgia, serif;--sans: "PingFang SC", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;overflow-x:hidden}.skip-link{position:absolute;left:-999px;top:12px;z-index:30;padding:8px 14px;background:var(--ink);color:var(--paper);text-decoration:none}.skip-link:focus{left:12px}:focus-visible{outline:2px solid var(--warm);outline-offset:3px}.rail{position:fixed;inset:0 0 auto;z-index:20;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:24px;padding:16px clamp(18px,4vw,52px);background:color-mix(in srgb,var(--paper) 86%,transparent);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}.mark{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font-family:var(--serif);font-size:17px;letter-spacing:.06em}.mark-cross{position:relative;width:16px;height:16px;border:1px solid var(--ink);border-radius:50%}.mark-cross:before,.mark-cross:after{content:"";position:absolute;background:var(--ink)}.mark-cross:before{left:50%;top:-3px;width:1px;height:22px;transform:translate(-50%)}.mark-cross:after{top:50%;left:-3px;height:1px;width:22px;transform:translateY(-50%)}.rail-links{display:flex;gap:22px;font-size:13px;letter-spacing:.08em;color:var(--ink-soft)}.rail-links a{text-decoration:none;padding-bottom:2px;border-bottom:1px solid transparent;transition:border-color .3s var(--ease-out),color .3s var(--ease-out)}.rail-links a:hover,.rail-links a:focus-visible{color:var(--ink);border-color:var(--ink)}.rail-meta{margin:0;font-size:12px;letter-spacing:.16em;color:var(--ink-faint)}.stage{position:relative;height:340vh}.stage--short{height:220vh}.act{position:sticky;top:0;height:100svh;display:grid;align-items:center;padding:84px clamp(18px,5vw,72px) 40px;overflow:hidden}.act-inner{width:min(100%,1180px);margin:0 auto;display:grid;gap:clamp(24px,4vw,56px);align-items:center;grid-template-columns:minmax(0,1fr) minmax(0,1.02fr)}.act-inner--single{grid-template-columns:1fr}.eyebrow{margin:0 0 16px;font-size:12px;letter-spacing:.28em;color:var(--ink-faint)}h1,h2{margin:0;font-family:var(--serif);font-weight:500;letter-spacing:.01em;line-height:1.22;font-size:clamp(30px,4.2vw,56px)}h2{font-size:clamp(26px,3.2vw,42px)}.em{position:relative;font-style:normal;color:var(--warm)}.em:after{content:"";position:absolute;left:-2%;right:-2%;bottom:.1em;height:.3em;background:color-mix(in srgb,var(--warm) 16%,transparent);z-index:-1;transform:scaleX(var(--em-fill, 0));transform-origin:left;transition:transform 1.1s var(--ease-out)}.em--soft{color:var(--cool)}.em--soft:after{background:color-mix(in srgb,var(--cool) 15%,transparent)}.lede{max-width:44ch;margin:20px 0 0;color:var(--ink-soft);font-size:clamp(15px,1.1vw,17px)}.lens-stage{position:relative;display:grid;gap:14px;justify-items:center;padding:clamp(14px,2.2vw,26px);background:linear-gradient(180deg,var(--paper-2),color-mix(in srgb,var(--paper-2) 50%,var(--paper)));border:1px solid var(--line)}.lens{width:min(100%,480px);aspect-ratio:1 / 1;display:block;border-radius:50%;box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--ink) 12%,transparent);cursor:ns-resize;touch-action:none}.lens:active{cursor:grabbing}.dial{width:min(100%,380px);padding:4px 2px;cursor:pointer;touch-action:none}.dial-track{position:relative;height:2px;background:color-mix(in srgb,var(--ink) 18%,transparent)}.dial-fill{position:absolute;inset:0 auto 0 0;width:42%;background:var(--ink)}.dial-knob{position:absolute;top:50%;left:42%;width:13px;height:13px;border-radius:50%;background:var(--paper);border:2px solid var(--ink);transform:translate(-50%,-50%);transition:transform .2s var(--ease-out)}.dial:active .dial-knob{transform:translate(-50%,-50%) scale(1.3)}.dial-ticks{display:flex;justify-content:space-between;margin-top:6px;font-size:11px;letter-spacing:.1em;color:var(--ink-faint)}.lens-readout{display:flex;gap:16px;align-items:baseline;margin:0;font-size:13px;letter-spacing:.08em;color:var(--ink-soft)}.readout-focus b{font-family:var(--serif);font-size:19px;font-weight:500;color:var(--ink)}.readout-state{padding:1px 9px;border:1px solid var(--line);color:var(--ink-faint)}.hint{display:inline-flex;gap:10px;align-items:center;margin-top:26px;font-size:12px;letter-spacing:.12em;color:var(--ink-faint)}.hint-key{display:inline-grid;place-items:center;width:22px;height:22px;border:1px solid var(--line)}.plates{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(10px,1.4vw,20px)}.plate{position:relative;display:grid;gap:8px;padding:0 0 16px;text-align:left;background:var(--paper-2);border:1px solid var(--line);color:inherit;font:inherit;cursor:pointer;transition:transform .6s var(--ease-out),border-color .4s var(--ease-out),box-shadow .6s var(--ease-out)}.plate:hover{transform:translateY(-4px)}.plate[aria-pressed=true]{border-color:var(--ink);box-shadow:0 18px 40px -28px #16150fb3}.plate-canvas{width:100%;aspect-ratio:4 / 3;display:block}.plate-index{position:absolute;top:8px;left:10px;font-family:var(--serif);font-size:12px;color:var(--paper);mix-blend-mode:difference}.plate-title{padding:0 16px;font-family:var(--serif);font-size:clamp(19px,1.7vw,25px)}.plate-body{padding:0 16px;font-size:14px;color:var(--ink-soft)}.plate-state{padding:0 16px;font-size:11px;letter-spacing:.22em;color:var(--ink-faint)}.plate[aria-pressed=true] .plate-state{color:var(--warm)}.decide-note{max-width:58ch;margin:0;font-family:var(--serif);font-size:clamp(15px,1.3vw,18px);color:var(--ink-soft)}.margin-list{display:grid;gap:12px;margin:28px 0 0}.margin-list div{display:grid;grid-template-columns:84px 1fr;gap:16px;padding-top:12px;border-top:1px solid var(--line)}.margin-list dt{font-size:12px;letter-spacing:.18em;color:var(--ink-faint)}.margin-list dd{margin:0;font-size:14px;color:var(--ink-soft)}.margin-stage{display:grid;gap:14px}.edge{width:100%;aspect-ratio:1 / .78;display:block;border:1px solid var(--line);background:var(--paper-2)}.edge-control{display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:center;font-size:12px;letter-spacing:.14em;color:var(--ink-faint)}.edge-control input[type=range]{width:100%;accent-color:var(--warm)}.edge-caption{margin:0;font-size:13px;color:var(--ink-soft)}.colophon{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;padding:34px clamp(18px,5vw,72px) 48px;font-size:12px;letter-spacing:.14em;color:var(--ink-faint)}.colophon p{margin:0}@media(max-width:960px){.act-inner{grid-template-columns:1fr;gap:22px}.act{padding-top:74px}.lens{width:min(100%,360px)}.plates{grid-template-columns:1fr}.stage,.stage--short{height:auto}.act{position:static;height:auto;padding-bottom:64px;overflow:visible}.rail{grid-template-columns:auto 1fr}.rail-links{display:none}.rail-meta{text-align:right}.margin-list div{grid-template-columns:1fr;gap:2px}}@media(max-width:520px){.rail-meta{display:none}.lens-readout{flex-wrap:wrap}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.em:after{transform:scaleX(1);transition:none}*,*:before,*:after{animation-duration:.001ms!important;transition-duration:.001ms!important}}