:root{
  --reader-bg:#f2f2ed;
  --reader-panel:#fffffb;
  --reader-paper:#fffffb;
  --reader-text:#171717;
  --reader-muted:#676762;
  --reader-faint:#b5b5ad;
  --reader-line:#d6d6cf;
  --reader-line-strong:#84847e;
  --reader-shadow:rgba(0,0,0,.08);
  --reader-tone-position:0%
}
*{box-sizing:border-box}
html,body{margin:0;width:100%;height:100%}
body{
  overflow:hidden;
  background:var(--reader-bg);
  color:var(--reader-text);
  font-family:"IBM Plex Sans JP",sans-serif;
  -webkit-font-smoothing:antialiased
}
a,button{cursor:crosshair}
.ruin-decoding{opacity:.50;filter:blur(.35px)}

.manifesto-topbar{
  position:fixed;z-index:20;
  left:0;right:0;top:0;height:72px;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 24px;
  border-bottom:1px solid var(--reader-line-strong);
  background:var(--reader-paper)
}
.manifesto-topbar>strong{
  font-size:22px;font-weight:300;letter-spacing:1.35px;white-space:nowrap
}
.manifesto-actions{display:flex;align-items:center;gap:20px}
.manifesto-actions nav{display:flex;gap:24px;font-size:10px}
.manifesto-actions a{color:var(--reader-muted);text-decoration:none;white-space:nowrap}
.manifesto-actions a:hover{color:var(--reader-text)}
.language-switch{
  display:flex;align-items:center;gap:5px;
  color:var(--reader-faint);
  font:300 9px/1 "IBM Plex Mono",monospace
}
.language-switch button{
  appearance:none;border:0;background:none;padding:3px 2px;
  color:var(--reader-faint);font:inherit
}
.language-switch button:hover,.language-switch button.active{color:var(--reader-text)}

.reader-tone-control{
  position:relative;
  display:flex;
  align-items:center;
  gap:7px;
  height:30px;
  color:var(--reader-muted);
  user-select:none
}
.reader-tone-icon{
  width:11px;text-align:center;
  font:300 10px/1 "IBM Plex Mono",monospace;
  opacity:.62
}
.reader-tone-track-wrap{
  position:relative;z-index:31;width:112px;height:30px;
  display:grid;align-items:center
}
.reader-tone-slider{
  appearance:none;-webkit-appearance:none;
  position:relative;z-index:32;width:112px;height:30px;margin:0;padding:0;
  background:transparent;outline:none;cursor:ew-resize;pointer-events:auto;touch-action:pan-y
}
.reader-tone-slider::-webkit-slider-runnable-track{
  height:1px;
  background:
    linear-gradient(90deg,
      #bdbdb6 0%,
      #aa9b7e 45%,
      #77756d 66%,
      #343630 100%)
}
.reader-tone-slider::-moz-range-track{
  height:1px;border:0;
  background:
    linear-gradient(90deg,
      #bdbdb6 0%,
      #aa9b7e 45%,
      #77756d 66%,
      #343630 100%)
}
.reader-tone-slider::-webkit-slider-thumb{
  -webkit-appearance:none;
  width:11px;height:11px;margin-top:-5px;
  border-radius:50%;
  border:1px solid var(--reader-line-strong);
  background:var(--reader-paper);
  box-shadow:0 0 0 1px var(--reader-shadow)
}
.reader-tone-slider::-moz-range-thumb{
  width:11px;height:11px;border-radius:50%;
  border:1px solid var(--reader-line-strong);
  background:var(--reader-paper);
  box-shadow:0 0 0 1px var(--reader-shadow)
}
.reader-tone-warm-mark{
  position:absolute;pointer-events:none;
  left:45%;top:13px;width:1px;height:4px;
  background:var(--reader-line-strong);
  opacity:.42;transform:translateX(-.5px)
}

.manifesto-reader{
  position:fixed;
  left:0;right:0;top:72px;bottom:0;
  display:grid;
  grid-template-columns:270px minmax(0,1fr) 44px;
  background:var(--reader-paper);
  overflow:hidden
}
.manifesto-index{
  min-height:0;
  padding:43px 22px 28px 28px;
  border-right:1px solid var(--reader-line);
  overflow:auto;
  scrollbar-width:none
}
.manifesto-index::-webkit-scrollbar{width:0}
.manifesto-index-label{
  margin-bottom:26px;
  color:var(--reader-faint);
  font-size:9px;letter-spacing:1.2px
}
.manifesto-index nav{display:flex;flex-direction:column;gap:7px}
.manifesto-index a{
  position:relative;
  display:grid;grid-template-columns:28px minmax(0,1fr);gap:10px;
  padding:5px 0;
  color:var(--reader-text);text-decoration:none;
  font-size:10.5px;line-height:1.55;
  opacity:.36;
  transition:opacity .15s ease,transform .15s ease
}
.manifesto-index a span{
  font:300 8px/1.6 "IBM Plex Mono",monospace;
  opacity:.62
}
.manifesto-index a:hover,.manifesto-index a.active{opacity:1;transform:translateX(3px)}

.manifesto-scroll{
  min-width:0;min-height:0;
  overflow:auto;
  scroll-behavior:smooth;
  outline:none;
  scrollbar-width:thin;
  scrollbar-color:var(--reader-line-strong) transparent
}
.manifesto-scroll::-webkit-scrollbar{width:7px}
.manifesto-scroll::-webkit-scrollbar-thumb{
  background:var(--reader-line-strong);
  border:2px solid transparent;background-clip:padding-box
}
.manifesto-document{
  width:min(850px,calc(100% - 72px));
  margin:0 auto;
  padding:90px 22px 120px
}
.manifesto-loading{
  padding:80px 0;
  color:var(--reader-faint);
  font-size:11px;letter-spacing:1px
}
.manifesto-title-block{
  padding:7px 0 76px;
  text-align:center
}
.manifesto-title-block h1{
  margin:0;
  font-size:35px;
  font-weight:300;
  letter-spacing:5px
}
.manifesto-section{
  scroll-margin-top:28px;
  padding:48px 0 26px;
  border-top:1px solid var(--reader-line)
}
.manifesto-section-number{
  margin-bottom:12px;
  color:var(--reader-faint);
  font:300 8px/1 "IBM Plex Mono",monospace
}
.manifesto-section h2{
  margin:0 0 30px;
  font-size:22px;font-weight:300;line-height:1.5;letter-spacing:.7px
}
.manifesto-section h3{
  margin:38px 0 18px;
  font-size:15px;font-weight:400;letter-spacing:.35px
}
.manifesto-section p{
  margin:0 0 17px;
  font-size:14px;
  line-height:2;
  text-align:justify;
  letter-spacing:.12px
}
.manifesto-section .dedication{
  font-size:12px;
  opacity:.60;
  text-align:left
}
.manifesto-section .manifesto-emphasis{
  margin:29px 0;
  text-align:center;
  letter-spacing:.55px
}
.manifesto-section .manifesto-final{
  margin:38px 0 10px;
  padding:22px 28px;
  border-left:1px solid var(--reader-line-strong);
  border-right:1px solid var(--reader-line)
}
.manifesto-section .manifesto-final p{text-align:center;font-size:15px;letter-spacing:.5px}

.manifesto-crossref{
  margin:54px 0 22px;
  padding:22px 0;
  text-align:center;
  border-top:1px solid var(--reader-line)
}
.manifesto-crossref a{
  color:var(--reader-text);text-decoration:none;
  font-size:11px;opacity:.55;letter-spacing:.4px
}
.manifesto-crossref a:hover{opacity:1;text-decoration:underline;text-underline-offset:4px}

.manifesto-footnotes{
  margin-top:54px;
  padding-top:32px;
  border-top:1px solid var(--reader-line)
}
.manifesto-footnotes h2{
  margin:0 0 20px;
  font-size:13px;font-weight:300;letter-spacing:.6px
}
.manifesto-footnotes ol{margin:0;padding-left:24px}
.manifesto-footnotes li{
  margin-bottom:13px;
  font-size:10.5px;line-height:1.7;color:var(--reader-muted)
}
.manifesto-footnotes li:target{
  outline:1px solid var(--reader-line);outline-offset:5px
}

.footnote-anchor{
  display:inline;
  color:inherit;
  text-decoration:none;
  border-bottom:1px dotted var(--reader-line-strong)
}
.footnote-anchor sup{
  margin-left:2px;
  font:300 8px/1 "IBM Plex Mono",monospace;
  vertical-align:super;
  opacity:.55
}
.footnote-anchor:hover,.footnote-anchor:focus-visible{
  border-bottom-color:var(--reader-text);outline:none
}
.footnote-popover{
  position:fixed;z-index:100;
  width:min(360px,calc(100vw - 28px));
  padding:14px 16px 15px;
  background:var(--reader-paper);
  border:1px solid var(--reader-line-strong);
  box-shadow:0 12px 35px var(--reader-shadow);
  color:var(--reader-text);
  font-size:11px;line-height:1.68
}
.footnote-popover-number{
  margin-bottom:7px;
  font:300 8px/1 "IBM Plex Mono",monospace;
  color:var(--reader-muted)
}

.manifesto-hud{
  min-height:0;
  border-left:1px solid var(--reader-line);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:12px;
  font-family:"IBM Plex Mono",monospace
}
.manifesto-hud button{
  border:0;background:none;padding:5px;
  color:var(--reader-text);font:300 15px/1 "IBM Plex Mono",monospace;
  opacity:.38
}
.manifesto-hud button:hover{opacity:1}
.manifesto-hud div{
  min-height:38px;
  writing-mode:vertical-rl;
  color:var(--reader-muted);
  font:300 8px/1 "IBM Plex Mono",monospace;
  letter-spacing:1px
}

@media(max-width:1120px){
  .manifesto-actions{gap:13px}
  .reader-tone-track-wrap,.reader-tone-slider{width:92px}
  .manifesto-actions nav{gap:13px}
}
@media(max-width:900px){
  .manifesto-topbar{padding:0 14px}
  .manifesto-topbar>strong{font-size:18px}
  .manifesto-actions{gap:11px}
  .manifesto-actions nav{display:none}
  .reader-tone-track-wrap,.reader-tone-slider{width:86px}
  .manifesto-reader{grid-template-columns:minmax(0,1fr) 36px}
  .manifesto-index{display:none}
  .manifesto-document{width:min(100%,700px);padding:62px 22px 95px}
}
@media(max-width:560px){
  .manifesto-topbar{height:auto;min-height:62px;gap:7px;padding:9px 12px}
  .manifesto-topbar>strong{font-size:16px}
  .manifesto-actions{gap:9px}
  .reader-tone-track-wrap,.reader-tone-slider{width:72px}
  .reader-tone-control{gap:4px}
  .manifesto-reader{top:62px}
  .manifesto-document{padding:48px 15px 82px}
  .manifesto-title-block{padding-bottom:52px}
  .manifesto-title-block h1{font-size:27px;letter-spacing:3px}
  .manifesto-section{padding-top:37px}
  .manifesto-section h2{font-size:18px;margin-bottom:24px}
  .manifesto-section p{font-size:12.5px;line-height:1.88}
}

.reader-tone-control{z-index:30}
.reader-tone-slider{position:relative;z-index:32;pointer-events:auto}
.reader-tone-slider.is-dragging::-webkit-slider-thumb{box-shadow:0 0 0 3px var(--reader-shadow)}
.reader-tone-slider.is-dragging::-moz-range-thumb{box-shadow:0 0 0 3px var(--reader-shadow)}

/* v70 · isolate the real range input from decorative layers */
.reader-tone-track-wrap{pointer-events:auto}
.reader-tone-warm-mark,.reader-tone-icon{pointer-events:none}
input.reader-tone-slider[data-reader-tone]{pointer-events:auto}


/* ==========================================================================
   v74 · quieter manifesto reader / larger top-right controls
   ========================================================================== */

.manifesto-actions {
  gap: 28px;
}

.manifesto-actions nav {
  gap: 30px;
  font-size: 13px;
}

.manifesto-actions a {
  line-height: 1.25;
}

.language-switch {
  gap: 7px;
  font-size: 11.5px;
}

.language-switch button {
  padding: 5px 2px;
}

.reader-tone-control {
  gap: 9px;
  height: 34px;
}

.reader-tone-icon {
  width: 14px;
  font-size: 13px;
}

.reader-tone-track-wrap,
.reader-tone-slider {
  width: 184px;
}

.reader-tone-track-wrap {
  height: 34px;
}

.reader-tone-slider {
  height: 34px;
}

.reader-tone-slider::-webkit-slider-thumb {
  width: 14px;
  height: 14px;
  margin-top: -6.5px;
}

.reader-tone-slider::-moz-range-thumb {
  width: 14px;
  height: 14px;
}

.reader-tone-warm-mark {
  top: 15px;
  height: 5px;
}

/* The ideal layout has no separate right-hand progress/control rail. */
.manifesto-reader {
  grid-template-columns: 270px minmax(0, 1fr);
}

.manifesto-hud {
  display: none !important;
}

@media (max-width: 1120px) {
  .manifesto-actions { gap: 18px; }
  .manifesto-actions nav { gap: 20px; font-size: 12px; }
  .reader-tone-track-wrap,
  .reader-tone-slider { width: 142px; }
}

@media (max-width: 900px) {
  .manifesto-reader {
    grid-template-columns: minmax(0, 1fr);
  }
  .reader-tone-track-wrap,
  .reader-tone-slider { width: 118px; }
}

@media (max-width: 560px) {
  .language-switch { font-size: 10px; }
  .reader-tone-track-wrap,
  .reader-tone-slider { width: 82px; }
}


/* ==========================================================================
   v75 · Simplified-Chinese font normalization
   Noto Sans SC is used only in zh-Hans/zh Chinese mode.
   English/Japanese keep the authored IBM Plex typography.
   ========================================================================== */
html[lang^="zh"] {
  font-synthesis: none;
}

html[lang^="zh"] body,
html[lang^="zh"] button,
html[lang^="zh"] input,
html[lang^="zh"] textarea,
html[lang^="zh"] select,
html[lang^="zh"] summary {
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif !important;
  font-synthesis: none !important;
  -webkit-font-smoothing: antialiased;
}

/* HUD remains monospaced for Latin/numbers; Chinese fallback is SC. */
html[lang^="zh"] .manifesto-hud,
html[lang^="zh"] .manifesto-hud button {
  font-family: "IBM Plex Mono", "Noto Sans SC", "PingFang SC", monospace !important;
  font-synthesis: none !important;
}