.global-supplement { margin: 1.25rem 0; }
.global-supplement > summary { font-weight: 600; cursor: pointer; }

@media screen {
  html[data-supplement-enhanced] .global-supplement:not([open]) { margin: 0; }
  html[data-supplement-enhanced] .global-supplement:not([open]) > summary { display: none; }
}

.markdown-body .global-supplement-ref {
  display: inline;
  margin: 0;
  padding: 0;
  font: inherit;
  line-height: inherit;
  text-align: inherit;
  vertical-align: baseline;
  color: var(--post-link-color);
  text-decoration: none;
  border: 0;
  border-radius: 2px;
  background: transparent;
  cursor: pointer;
}

.global-supplement-ref__text {
  text-decoration-line: underline;
  text-decoration-style: dotted;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

.global-supplement-ref__kind {
  display: inline-block;
  margin-left: 0.35em;
  padding: 0 0.3em;
  font-size: 0.75em;
  line-height: 1.5;
  vertical-align: 0.1em;
  white-space: nowrap;
  color: var(--sec-text-color);
  border: 1px solid var(--line-color);
  border-radius: 3px;
  background: var(--button-bg-color);
}

.markdown-body .global-supplement-ref:hover { color: var(--link-hover-color); }
.global-supplement-ref:hover .global-supplement-ref__text { text-decoration-style: solid; }
.global-supplement-ref:focus-visible,
.global-supplement-reader button:focus-visible,
.global-supplement-reader a:focus-visible {
  outline: 2px solid var(--link-hover-color);
  outline-offset: 3px;
}

.global-supplement__filename { margin-left: 0.6rem; overflow-wrap: anywhere; }
.global-supplement__description { color: var(--sec-text-color); }
.global-supplement-reader .global-supplement__original-row { display: none; }
.global-supplement-reader .global-supplement__original-row + :is(h1, h2, h3, h4, h5, h6) { margin-top: 0; }

.global-supplement__content.markdown-body {
  min-width: 0;
  margin: 0;
  padding: 1.25rem;
  overflow-wrap: anywhere;
  color: var(--post-text-color);
  background: transparent;
}

.global-supplement__content.markdown-body :is(h1, h2, h3, h4, h5, h6) {
  color: var(--post-heading-color);
  border-bottom-color: var(--line-color);
}

.global-supplement__content.markdown-body a { color: var(--post-link-color); }
.global-supplement__content.markdown-body pre {
  color: var(--post-text-color);
  background: var(--highlight-bg-color);
}

.global-supplement__content.markdown-body code { color: inherit; }

.global-supplement__content > :first-child { margin-top: 0; }
.global-supplement__content > :last-child { margin-bottom: 0; }
.global-supplement__raw {
  max-height: none;
  tab-size: 2;
  white-space: pre;
}

.global-supplement-reader {
  position: fixed;
  inset: 0;
  width: min(1100px, calc(100vw - 64px));
  max-width: none;
  height: min(860px, calc(100dvh - 64px));
  max-height: none;
  margin: auto;
  padding: 0;
  overflow: hidden;
  color: var(--post-text-color);
  border: 1px solid var(--glass-border, var(--line-color));
  border-radius: 14px;
  background: var(--glass-reading-bg, var(--board-bg-color));
  box-shadow: var(--glass-shadow, 0 24px 80px rgb(0 0 0 / 25%));
}

/* 背景层单独模糊，避免 dialog 成为内嵌 Code Lab 的 fixed 全屏包含块。 */
.global-supplement-reader::before {
  position: absolute;
  inset: 0;
  z-index: -1;
  border-radius: inherit;
  backdrop-filter: var(--glass-filter, none);
  pointer-events: none;
  content: "";
}

.global-supplement-reader[open] { display: flex; flex-direction: column; }
.global-supplement-reader::backdrop { background: rgb(12 20 32 / 55%); }

.global-supplement-reader__header {
  display: flex;
  flex: none;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.1rem 1.5rem;
  border-bottom: 1px solid var(--line-color);
}

.global-supplement-reader__heading { min-width: 0; }
.global-supplement-reader__label {
  margin: 0 0 0.2rem;
  font-size: 0.75rem;
  line-height: 1.6;
  color: var(--sec-text-color);
}

.global-supplement-reader__title {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 600;
  line-height: 1.6;
  overflow-wrap: anywhere;
  outline: none;
}

.global-supplement-reader__close {
  display: grid;
  flex: none;
  place-items: center;
  width: 40px;
  height: 40px;
  padding: 0;
  font: inherit;
  font-size: 1.65rem;
  line-height: 1;
  color: var(--sec-text-color);
  border: 0;
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
}

.global-supplement-reader__close:hover { background: var(--button-bg-color); }
.global-supplement-reader__body {
  flex: 1 1 auto;
  min-height: 0;
  overflow: auto;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
}

.global-supplement-reader__body > .global-supplement__content { padding: 1.5rem; }
.global-supplement-reader__body img { max-width: 100%; height: auto; }
.global-supplement-reader .global-supplement__content a.fancybox {
  display: block;
  overflow: auto;
  cursor: zoom-in;
}

.global-supplement-reader .global-supplement__content a.fancybox:has(.global-supplement__image--is-expanded) { cursor: zoom-out; }
.global-supplement-reader .global-supplement__content img.global-supplement__image--is-expanded {
  width: auto;
  max-width: none;
}

.global-supplement-reader__footer {
  display: flex;
  flex: none;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1.5rem;
  border-top: 1px solid var(--line-color);
}

.global-supplement-reader .global-supplement-reader__original { font-size: 0.85rem; color: var(--post-link-color); }
.global-supplement-reader__original[hidden] { display: none; }
.global-supplement-reader__return {
  flex: none;
  margin-left: auto;
  padding: 0.5rem 1rem;
  font: inherit;
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--post-text-color);
  border: 1px solid var(--line-color);
  border-radius: 6px;
  background: var(--button-bg-color);
  cursor: pointer;
}

.global-supplement-reader__return:hover { background: var(--button-hover-bg-color); }

@media (max-width: 640px) {
  .global-supplement-reader { width: 100%; height: 100dvh; border: 0; border-radius: 0; }
  .global-supplement-reader__header { gap: 0.75rem; padding: 1rem; padding-top: max(1rem, env(safe-area-inset-top)); }
  .global-supplement-reader__title { font-size: 1.05rem; }
  .global-supplement-reader__body > .global-supplement__content { padding: 1rem; }
  .global-supplement-reader__footer { padding: 0.75rem 1rem; padding-bottom: max(0.75rem, env(safe-area-inset-bottom)); }
}

@media print {
  .global-supplement { break-inside: auto; }
  .global-supplement-reader { display: none !important; }
}