/*
 * Cyber Crayon v3 — Components
 */

/* Buttons */
.lc-button,
.lc-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  font-family: var(--lc-font-body);
  font-size: var(--lc-text-label-md);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--lc-on-primary);
  background: var(--lc-primary);
  border: 1px solid var(--lc-border-divider);
  box-shadow: var(--lc-shadow-soft);
  cursor: pointer;
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.2s cubic-bezier(0.34, 1.56, 0.64, 1), background var(--lc-transition), color var(--lc-transition);
}

.lc-button:hover,
.lc-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--lc-shadow-card-hover);
}

.lc-button:active,
.lc-btn:active {
  transform: translateY(0);
  box-shadow: var(--lc-shadow-soft);
}

.lc-button--ghost {
  background: var(--lc-surface-container-lowest);
  color: var(--lc-on-surface);
}

.lc-button--lime {
  background: var(--lc-cyber-lime);
  color: var(--lc-ink-black);
}

.lc-button--lime:hover,
.lc-button--lime:focus-visible {
  filter: brightness(0.96);
}

/* Chips / Tags */
.lc-chip {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-family: var(--lc-font-body);
  font-size: var(--lc-text-label-md);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: var(--lc-radius-full);
  color: var(--lc-chip-on-neon);
}

.lc-chip--cyber-lime { background: var(--lc-cyber-lime); color: var(--lc-chip-on-neon); }
.lc-chip--paused { background: var(--lc-surface-container-high); color: var(--lc-on-surface); }
.lc-chip--neon-pink { background: var(--lc-neon-pink); color: #fff; }
.lc-chip--electric-purple { background: var(--lc-electric-purple); color: #fff; }
.lc-chip--spray-can-blue { background: var(--lc-spray-can-blue); color: #fff; }

/* Project status on cards — lightweight, not tag chips */
:is(.lc-bento-card__status, .lc-project-card__status, .lc-about-project__status) {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: none;
  padding: 0.125rem 0.5rem;
  line-height: 1.4;
  border-radius: var(--lc-radius-sm);
  box-shadow: none;
  border: 1px solid var(--lc-outline-variant);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

:is(.lc-bento-card__status, .lc-project-card__status, .lc-about-project__status).lc-chip--cyber-lime {
  background: var(--lc-chip-bg);
  color: var(--lc-status-running);
  border-color: color-mix(in srgb, var(--lc-status-running) 28%, var(--lc-outline-variant));
}

:is(.lc-bento-card__status, .lc-project-card__status, .lc-about-project__status).lc-chip--paused {
  background: color-mix(in srgb, var(--lc-surface-container-high) 88%, transparent);
  color: var(--lc-status-paused);
}

:is(.lc-bento-card__status, .lc-project-card__status, .lc-about-project__status).lc-chip--neon-pink {
  background: color-mix(in srgb, var(--lc-neon-pink) 12%, transparent);
  color: var(--lc-status-developing);
  border-color: color-mix(in srgb, var(--lc-status-developing) 32%, var(--lc-outline-variant));
}

.lc-bento-card--featured .lc-bento-card__status.lc-chip--cyber-lime {
  background: rgba(204, 255, 0, 0.12);
  color: var(--lc-cyber-lime);
  border-color: rgba(204, 255, 0, 0.28);
}

.lc-bento-card--featured .lc-bento-card__status.lc-chip--paused {
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.7);
  border-color: rgba(255, 255, 255, 0.18);
}

.lc-bento-card--featured .lc-bento-card__status.lc-chip--neon-pink {
  background: rgba(255, 51, 153, 0.14);
  color: #ffb3d9;
  border-color: rgba(255, 51, 153, 0.32);
}

/* Card hover — opaque status pill for contrast on colored / busy backgrounds */
.lc-bento-card:hover .lc-bento-card__status,
.lc-project-card:hover .lc-project-card__status,
.lc-about-project:hover .lc-about-project__status {
  background: var(--lc-surface-container-lowest);
  border-color: var(--lc-ink-black);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.lc-bento-card:hover .lc-bento-card__status.lc-chip--cyber-lime,
.lc-project-card:hover .lc-project-card__status.lc-chip--cyber-lime,
.lc-about-project:hover .lc-about-project__status.lc-chip--cyber-lime {
  color: var(--lc-status-running);
}

.lc-bento-card:hover .lc-bento-card__status.lc-chip--paused,
.lc-project-card:hover .lc-project-card__status.lc-chip--paused,
.lc-about-project:hover .lc-about-project__status.lc-chip--paused {
  color: var(--lc-status-paused);
}

.lc-bento-card:hover .lc-bento-card__status.lc-chip--neon-pink,
.lc-project-card:hover .lc-project-card__status.lc-chip--neon-pink,
.lc-about-project:hover .lc-about-project__status.lc-chip--neon-pink {
  color: var(--lc-status-developing);
}

.lc-bento-card--featured:hover .lc-bento-card__status {
  background: rgba(13, 13, 13, 0.92);
  border-color: rgba(255, 255, 255, 0.22);
}

.lc-bento-card--featured:hover .lc-bento-card__status.lc-chip--cyber-lime {
  color: var(--lc-cyber-lime);
}

.lc-bento-card--featured:hover .lc-bento-card__status.lc-chip--paused {
  color: rgba(255, 255, 255, 0.85);
}

.lc-bento-card--featured:hover .lc-bento-card__status.lc-chip--neon-pink {
  color: #ffb3d9;
}

/* Footer badges */
.lc-badge {
  display: inline-flex;
  align-items: stretch;
  border: 2px solid var(--lc-outline-variant);
  box-shadow: 3px 3px 0 var(--lc-neon-pink);
  font-family: var(--lc-font-mono);
  font-size: 0.625rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  transition: transform var(--lc-transition), box-shadow var(--lc-transition);
}

.lc-badge__label {
  padding: 0.4em 0.55em;
  background: var(--lc-ink-black);
  color: var(--lc-cyber-lime);
  border-right: 2px solid var(--lc-outline-variant);
}

.lc-badge__value {
  padding: 0.4em 0.6em;
  background: var(--lc-badge-accent, var(--lc-electric-purple));
  color: #fff;
}

.lc-tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-size: var(--lc-text-label-md);
  font-weight: 700;
  background: var(--lc-tag-bg, var(--lc-cyber-lime));
  color: var(--lc-tag-fg, var(--lc-chip-on-neon));
  border-radius: var(--lc-radius-pill);
  text-decoration: none;
  transition: transform var(--lc-transition), background var(--lc-transition), color var(--lc-transition);
}

.lc-tag--lime {
  --lc-tag-bg: var(--lc-cyber-lime);
  --lc-tag-fg: var(--lc-chip-on-neon);
}

.lc-tag--pink {
  --lc-tag-bg: var(--lc-neon-pink);
  --lc-tag-fg: #fff;
}

.lc-tag--purple {
  --lc-tag-bg: var(--lc-electric-purple);
  --lc-tag-fg: #fff;
}

.lc-tag--blue {
  --lc-tag-bg: var(--lc-spray-can-blue);
  --lc-tag-fg: #fff;
}

/* Pagination — v4 胶囊（sections.css） */
.lc-pagination--comments {
  margin-top: 1.5rem;
}

/* Toast */
.lc-toast-region {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 10001;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.5rem;
  pointer-events: none;
  max-width: min(20rem, calc(100vw - 2rem));
}

.lc-toast {
  padding: 0.75rem 1rem;
  border: 1px solid var(--lc-border-divider);
  background: var(--lc-surface-container-lowest);
  color: var(--lc-on-surface);
  box-shadow: var(--lc-shadow-card);
  font-family: var(--lc-font-display);
  font-size: var(--lc-text-label-md);
  font-weight: 800;
  letter-spacing: 0.02em;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.lc-toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .lc-toast {
    transition: none;
    transform: none;
  }
}

/* TOC — v4 卡片视觉在 sections.css `.lc-article__toc-sidebar .lc-toc`；此处保留结构 + 功能态 */
.lc-toc__title {
  font-family: var(--lc-font-display);
  font-size: 0.9375rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--lc-on-surface);
}

.lc-toc__header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.lc-toc__icon {
  flex-shrink: 0;
  width: 1rem;
  height: 1rem;
  color: var(--lc-primary);
}

.lc-toc__list,
.lc-toc__sublist {
  list-style: none;
  margin: 0;
  padding: 0;
}

.lc-toc__sublist {
  padding-left: 0.625rem;
  margin-top: 0.125rem;
  margin-bottom: 0.25rem;
  border-left: 1px solid var(--lc-border-divider);
}

.lc-toc__item {
  margin: 0;
}

.lc-toc__link {
  display: block;
  padding: 0.25rem 0.5rem;
  border-radius: var(--lc-radius-element);
  font-size: 0.8125rem;
  line-height: 1.35;
  color: var(--lc-text-secondary);
  text-decoration: none;
  overflow-wrap: anywhere;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.lc-toc__item--level-2 > .lc-toc__link {
  font-size: 0.8125rem;
  font-weight: 700;
}

.lc-toc__item--level-3 .lc-toc__link {
  font-size: 0.8125rem;
  font-weight: 400;
  padding-left: 1.75rem;
  opacity: 0.88;
}

.lc-toc__link--active {
  color: var(--lc-primary);
  font-weight: 700;
  background: transparent;
  opacity: 1;
}

.lc-toc__item--level-3 .lc-toc__link--active {
  font-weight: 700;
}

.lc-toc__link:hover:not(.lc-toc__link--active),
.lc-toc__link:focus-visible:not(.lc-toc__link--active) {
  background: var(--lc-surface-container);
  color: var(--lc-on-surface);
}

.lc-toc__link--active:hover,
.lc-toc__link--active:focus-visible {
  color: var(--lc-primary);
}

html[data-lc-color-scheme="dark"] .lc-toc__link--active {
  color: var(--lc-primary);
}

html[data-lc-color-scheme="dark"] .lc-toc__item--level-3 .lc-toc__link--active {
  font-weight: 700;
}

html[data-lc-color-scheme="dark"] .lc-toc__link:hover:not(.lc-toc__link--active),
html[data-lc-color-scheme="dark"] .lc-toc__link:focus-visible:not(.lc-toc__link--active) {
  background: var(--lc-surface-container);
  color: var(--lc-on-surface);
}

html[data-lc-color-scheme="dark"] .lc-toc__sublist {
  border-left-color: var(--lc-border-divider);
}

html[data-lc-color-scheme="dark"] .lc-floating-toc__panel {
  background: var(--lc-surface-container-low);
}

@media (min-width: 1024px) {
  .lc-article__toc-sidebar .lc-toc__list {
    max-height: calc(100vh - var(--lc-navbar-h) - 6rem);
    overflow-y: auto;
    overscroll-behavior: contain;
    padding-right: 0.25rem;
    scrollbar-width: thin;
    scrollbar-color: color-mix(in srgb, var(--lc-on-surface) 35%, transparent) transparent;
  }

  .lc-article__toc-sidebar .lc-toc__list::-webkit-scrollbar {
    width: 4px;
  }

  .lc-article__toc-sidebar .lc-toc__list::-webkit-scrollbar-thumb {
    background: color-mix(in srgb, var(--lc-on-surface) 35%, transparent);
    border-radius: 2px;
  }

  html[data-lc-color-scheme="dark"] .lc-article__toc-sidebar .lc-toc__list {
    scrollbar-color: color-mix(in srgb, var(--lc-on-surface) 35%, transparent) transparent;
  }

  html[data-lc-color-scheme="dark"] .lc-article__toc-sidebar .lc-toc__list::-webkit-scrollbar-thumb {
    background: color-mix(in srgb, var(--lc-on-surface) 35%, transparent);
  }
}

.lc-toc__toggle {
  display: none;
}

@media (max-width: 1023px) {
  .lc-toc__toggle {
    display: flex;
    width: 100%;
    align-items: center;
    justify-content: space-between;
    padding: 0.625rem 0.875rem;
    border: 1px solid var(--lc-border-divider);
    border-radius: var(--lc-radius-card);
    background: var(--lc-surface);
    color: var(--lc-on-surface);
    font-family: var(--lc-font-mono);
    font-size: 0.8125rem;
    cursor: pointer;
    transition: border-color 0.2s ease;
  }

  .lc-toc__toggle:hover {
    border-color: var(--lc-primary);
  }

  .lc-toc__list:not(.is-open) {
    display: none;
  }
}

/* Terminal code blocks (single post) */
.lc-terminal {
  margin: 1.5rem 0;
  border: 1px solid var(--lc-terminal-border, var(--lc-border-divider));
  border-radius: var(--lc-radius-card);
  overflow: hidden;
  background: var(--lc-terminal-bg);
}

.lc-terminal__header {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.625rem 1rem;
  background: var(--lc-terminal-header);
  border-bottom: 1px solid var(--lc-terminal-border);
}

.lc-terminal__dots {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  flex-shrink: 0;
}

.lc-terminal__dot {
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 50%;
  flex-shrink: 0;
}

.lc-terminal__dot--red { background: #ff5f57; }
.lc-terminal__dot--yellow { background: #febc2e; }
.lc-terminal__dot--green { background: #28c840; }

.lc-terminal__title {
  font-family: var(--lc-font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: lowercase;
  color: var(--lc-terminal-title);
}

.lc-terminal__title:empty::before {
  content: "code";
  opacity: 0.65;
}

.lc-terminal--code pre,
.lc-terminal pre {
  margin: 0;
  padding: 1rem 1.25rem;
  background: var(--lc-terminal-bg);
  color: var(--lc-terminal-text);
  font-family: var(--lc-font-mono);
  font-size: 0.875rem;
  line-height: 1.65;
  overflow-x: auto;
  border: none;
  border-radius: 0;
  box-shadow: none;
  white-space: pre;
  word-break: normal;
}

.lc-terminal--code pre code,
.lc-terminal pre code {
  display: block;
  padding: 0;
  border: none;
  background: transparent;
  color: inherit;
  font-size: inherit;
  line-height: inherit;
  white-space: inherit;
  word-break: inherit;
}

/* Comments */
.lc-comments-tech {
  margin-top: var(--lc-section-gap);
  padding-top: 2rem;
  border-top: 1px solid var(--lc-border-divider);
}

.lc-comments-tech__container {
  position: relative;
}

.lc-comments-tech__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--lc-border-divider);
}

.lc-comments-tech__header--empty {
  border-bottom: none;
  margin-bottom: 1.5rem;
  padding-bottom: 0;
}

.lc-comments-tech__title-wrap {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  flex: 1;
  min-width: 0;
}

.lc-comments-tech__title-wrap .lc-section__header--nested {
  display: block;
  margin-bottom: 0;
  flex: 1;
  min-width: 0;
}

.lc-comments-tech__title-wrap .lc-section__header--nested .lc-section__title {
  font-size: clamp(1rem, 2.2vw, 1.375rem);
  line-height: 1.25;
  gap: 0.5rem;
}

.lc-comments-tech__title-wrap .lc-section__header--nested .lc-section__underline {
  width: 5rem;
  margin-top: 0.375rem;
}

.lc-comments-tech__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--lc-radius-element);
  background: var(--lc-primary);
  color: var(--lc-on-primary);
}

.lc-comments-tech__title {
  font-family: var(--lc-font-display);
  font-size: var(--lc-text-headline-md);
  margin: 0;
}

.lc-comments-tech__status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--lc-border-divider);
  border-radius: var(--lc-radius-pill);
  background: var(--lc-surface-container-low);
}

.lc-comments-tech__pulse {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--lc-cyber-lime);
  animation: lc-status-pulse 2s ease-in-out infinite;
}

@keyframes lc-status-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.45; }
}

.lc-comments-tech__status-text {
  font-family: var(--lc-font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--lc-on-surface-variant);
}

.lc-comments-tech__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.lc-comment-thread {
  display: flex;
  flex-direction: column;
  gap: 0;
}

/* Comment thread — with replies: same card shell as standalone, plus inset reply panel */
.lc-comment-thread:has(> .lc-comment-thread__children).is-highlighted {
  outline: 3px solid var(--lc-cyber-lime);
  outline-offset: 2px;
}

.lc-comment-thread:has(> .lc-comment-thread__children).is-highlighted > .lc-comment-feed__item--depth-1 .lc-comment-tech__body {
  outline: none;
}

.lc-comment-thread > .lc-comment-thread__children {
  list-style: none;
  margin-top: 0.75rem;
  padding-left: 1rem;
  border-left: 2px solid color-mix(in srgb, var(--lc-cyber-lime) 40%, var(--lc-border-divider));
  display: flex;
  flex-direction: column;
  gap: 0;
}

.lc-comment-tech__header {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
}

.lc-comment-tech__avatar-wrap {
  position: relative;
  flex-shrink: 0;
}

.lc-avatar {
  position: relative;
  display: inline-block;
  flex-shrink: 0;
  vertical-align: middle;
}

.lc-avatar--56 {
  width: 3.5rem;
  height: 3.5rem;
}

.lc-avatar--32 {
  width: 1.75rem;
  height: 1.75rem;
}

.lc-avatar__fallback {
  display: none;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  border: 1px solid var(--lc-border-divider);
  background: var(--lc-cyber-lime);
  color: var(--lc-ink-black);
  font-family: var(--lc-font-display);
  font-size: 1.25rem;
  font-weight: 800;
  line-height: 1;
  box-shadow: var(--lc-shadow-soft);
}

.lc-avatar--32 .lc-avatar__fallback {
  font-size: 0.75rem;
  border-radius: 50%;
}

.lc-avatar.is-fallback img {
  display: none;
}

.lc-avatar.is-fallback .lc-avatar__fallback {
  display: inline-flex;
}

.lc-comment-tech__avatar {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.lc-comment-tech__badge {
  position: absolute;
  bottom: -0.25rem;
  right: -0.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.25rem;
  height: 1.25rem;
  background: var(--lc-electric-purple);
  border: 2px solid var(--lc-surface-container-lowest);
  border-radius: 50%;
  color: #fff;
}

.lc-comment-tech__meta {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.35rem;
}

.lc-comment-tech__author-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.lc-comment-tech__author {
  font-family: var(--lc-font-display);
  font-size: 1rem;
  font-weight: 700;
}

.lc-comment-tech__author a {
  color: inherit;
  text-decoration: none;
}

.lc-comment-tech__author a:hover {
  color: var(--lc-primary);
}

.lc-comment-tech__pending {
  padding: 0.15rem 0.5rem;
  border-radius: var(--lc-radius-pill);
  background: var(--lc-cyber-lime);
  font-family: var(--lc-font-mono);
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
}

.lc-comment-tech__info-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.lc-comment-tech__time,
.lc-comment-tech__edit a {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--lc-font-mono);
  font-size: 0.75rem;
  color: var(--lc-on-surface-variant);
}

.lc-comment-tech__time svg,
.lc-comment-tech__edit a svg {
  flex-shrink: 0;
}

.lc-comment-tech__edit a {
  text-decoration: none;
}

.lc-comment-tech__edit a:hover {
  color: var(--lc-primary);
}

.lc-comment-tech__content {
  font-size: var(--lc-text-body-md);
  line-height: 1.65;
}

.lc-comment-tech__content p {
  margin: 0.75rem 0;
}

.lc-comment-tech__content a {
  color: var(--lc-primary);
  font-weight: 700;
}

.lc-comment-tech__content code {
  padding: 0.15rem 0.4rem;
  border: 1px solid var(--lc-outline-variant);
  background: var(--lc-surface-container);
  font-family: var(--lc-font-mono);
  font-size: 0.85em;
}

/* Nested / reply comments — rows inside thread panel */
.lc-comment-feed__item--depth-2 .lc-comment-tech__header,
.lc-comment-thread__children .lc-comment-tech__header,
.lc-comment-thread__children .lc-comment-tech__header,
.lc-comment-tech--reply .lc-comment-tech__header {
  gap: 0.5rem;
  margin-bottom: 0.4rem;
  align-items: flex-start;
}

.lc-comment-feed__item--depth-2 .lc-comment-tech__avatar,
.lc-comment-thread__children .lc-comment-tech__avatar,
.lc-comment-thread__children .lc-comment-tech__avatar,
.lc-comment-tech--reply .lc-comment-tech__avatar {
  box-shadow: none;
}

/* Smaller avatar for nested replies (guestbook feed + article comments) */
.lc-comment-feed__avatar-wrap--sm {
  width: 2.5rem;
  height: 2.5rem;
  line-height: 0;
}

/* Reply-to — caption on top-level; inline on nested replies */
.lc-comment-feed__reply-to {
  display: block;
  flex-basis: 100%;
  width: 100%;
  margin-bottom: 0.125rem;
  font-family: var(--lc-font-mono);
  font-size: var(--lc-text-caption-sm);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--lc-on-surface-variant);
}

.lc-comment-feed__item--depth-2 .lc-comment-tech__meta,
.lc-comment-thread__children .lc-comment-tech__meta,
.lc-comment-thread__children .lc-comment-tech__meta,
.lc-comment-tech--reply .lc-comment-tech__meta {
  flex-direction: row;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: flex-start;
  gap: 0.25rem 0.5rem;
}

.lc-comment-feed__item--depth-2 .lc-comment-tech__author-row,
.lc-comment-thread__children .lc-comment-tech__author-row,
.lc-comment-thread__children .lc-comment-tech__author-row,
.lc-comment-tech--reply .lc-comment-tech__author-row,
.lc-comment-feed__item--depth-2 .lc-comment-tech__info-row,
.lc-comment-thread__children .lc-comment-tech__info-row,
.lc-comment-thread__children .lc-comment-tech__info-row,
.lc-comment-tech--reply .lc-comment-tech__info-row {
  display: contents;
}

.lc-comment-feed__item--depth-2 .lc-comment-feed__reply-to,
.lc-comment-thread__children .lc-comment-feed__reply-to,
.lc-comment-tech--reply .lc-comment-feed__reply-to {
  display: inline;
  flex-basis: auto;
  width: auto;
  margin-bottom: 0;
  font-size: 0.75rem;
}

.lc-comment-feed__reply-to-link--nested {
  font-family: var(--lc-font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--lc-electric-purple);
  text-decoration: none;
}

.lc-comment-feed__reply-to-link--nested::before {
  content: "RE ";
  color: var(--lc-on-surface-variant);
  font-weight: 600;
}

.lc-comment-feed__reply-to-link--nested:hover,
.lc-comment-feed__reply-to-link--nested:focus-visible {
  color: var(--lc-neon-pink);
  text-decoration: underline;
}

.lc-comment-feed__item--depth-2 .lc-comment-tech__time::before,
.lc-comment-thread__children .lc-comment-tech__time::before,
.lc-comment-thread__children .lc-comment-tech__time::before,
.lc-comment-tech--reply .lc-comment-tech__time::before {
  content: "·";
  margin-right: 0.35rem;
  opacity: 0.55;
}

.lc-comment-feed__item--depth-2 .lc-comment-tech__time svg,
.lc-comment-thread__children .lc-comment-tech__time svg,
.lc-comment-thread__children .lc-comment-tech__time svg,
.lc-comment-tech--reply .lc-comment-tech__time svg,
.lc-comment-feed__item--depth-2 .lc-comment-tech__edit a svg,
.lc-comment-thread__children .lc-comment-tech__edit a svg,
.lc-comment-thread__children .lc-comment-tech__edit a svg,
.lc-comment-tech--reply .lc-comment-tech__edit a svg {
  display: none;
}

.lc-comment-feed__reply-to svg {
  display: none;
}

.lc-comment-feed__reply-to-link {
  color: inherit;
  text-decoration: none;
}

.lc-comment-feed__reply-to-link::before {
  content: "回复 ";
  opacity: 0.8;
}

.lc-comment-feed__reply-to-link:hover,
.lc-comment-feed__reply-to-link:focus-visible {
  color: var(--lc-on-surface);
  text-decoration: underline;
}

.lc-comment-feed__item--depth-2 .lc-comment-tech__author,
.lc-comment-thread__children .lc-comment-tech__author,
.lc-comment-thread__children .lc-comment-tech__author,
.lc-comment-tech--reply .lc-comment-tech__author {
  font-size: 0.875rem;
}

.lc-comment-feed__item--depth-2 .lc-comment-tech__time,
.lc-comment-feed__item--depth-2 .lc-comment-tech__edit a,
.lc-comment-thread__children .lc-comment-tech__time,
.lc-comment-thread__children .lc-comment-tech__edit a,
.lc-comment-thread__children .lc-comment-tech__time,
.lc-comment-thread__children .lc-comment-tech__edit a,
.lc-comment-tech--reply .lc-comment-tech__time,
.lc-comment-tech--reply .lc-comment-tech__edit a {
  font-size: 0.6875rem;
}

.lc-comment-feed__item--depth-2 .lc-comment-tech__content,
.lc-comment-thread__children .lc-comment-tech__content,
.lc-comment-thread__children .lc-comment-tech__content,
.lc-comment-tech--reply .lc-comment-tech__content {
  font-size: 0.875rem;
  line-height: 1.6;
}

.lc-comment-feed__item--depth-2 .lc-comment-tech__content p,
.lc-comment-thread__children .lc-comment-tech__content p,
.lc-comment-thread__children .lc-comment-tech__content p,
.lc-comment-tech--reply .lc-comment-tech__content p {
  margin: 0.5rem 0;
}

.lc-comment-feed__item--depth-2 .lc-comment-tech__footer,
.lc-comment-thread__children .lc-comment-tech__footer,
.lc-comment-thread__children .lc-comment-tech__footer,
.lc-comment-tech--reply .lc-comment-tech__footer {
  margin-top: 0.4rem;
  padding-top: 0;
  border-top: none;
}

.lc-comment-tech__footer {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--lc-outline-variant);
}

.lc-comment-tech__footer .comment-reply-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--lc-primary);
  font-size: 0.8125rem;
  font-weight: 700;
  text-decoration: none;
}

.lc-comment-tech__footer .comment-reply-link:hover {
  text-decoration: underline;
}

.lc-comment-feed__footer {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.lc-comment-feed__reply,
.lc-comment-feed__reply-cancel {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0;
  border: none;
  background: none;
  color: var(--lc-primary);
  font-size: 0.8125rem;
  font-weight: 700;
  cursor: pointer;
}

.lc-comment-feed__reply svg,
.lc-comment-feed__reply-cancel svg {
  flex-shrink: 0;
}

.lc-comment-feed__reply:hover,
.lc-comment-feed__reply:focus-visible,
.lc-comment-feed__reply-cancel:hover,
.lc-comment-feed__reply-cancel:focus-visible {
  color: var(--lc-primary);
  text-decoration: underline;
}

.lc-comment-feed__reply-form {
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--lc-outline-variant);
}

.lc-comment-feed__reply-form.is-open {
  display: block;
}

.lc-comment-feed__reply-form-inner {
  gap: 0.75rem 1rem;
}

.lc-comment-feed__reply-form-inner .lc-comment-form-tech__label {
  font-size: 0.75rem;
  letter-spacing: 0.04em;
}

.lc-comment-feed__reply-form-inner .lc-comment-form-tech__input,
.lc-comment-feed__reply-form-inner .lc-comment-form-tech__textarea,
.lc-comment-feed__reply-form-inner input[type="text"],
.lc-comment-feed__reply-form-inner input[type="email"],
.lc-comment-feed__reply-form-inner input[type="url"],
.lc-comment-feed__reply-form-inner textarea {
  padding: 0.6rem 0.75rem;
  font-size: 0.875rem;
}

.lc-comment-feed__reply-form-inner .lc-comment-form-tech__textarea,
.lc-comment-feed__reply-form-inner textarea {
  min-height: 5rem;
}

.lc-comment-feed__reply-form-inner .lc-comment-form-tech__logged-in-as,
.lc-comment-feed__reply-form-inner .lc-comment-form-tech__must-log-in {
  font-size: 0.8125rem;
}

.lc-comment-feed__reply-form-inner .lc-comment-form-tech__logged-in-as a,
.lc-comment-feed__reply-form-inner .lc-comment-form-tech__must-log-in a {
  color: var(--lc-primary);
  font-weight: 700;
}
.lc-comment-feed__reply-form-inner .lc-comment-form-tech__logged-in-as a:hover,
.lc-comment-feed__reply-form-inner .lc-comment-form-tech__must-log-in a:hover {
  color: var(--lc-primary-soft);
}

.lc-comment-feed__reply-form-inner .lc-comment-form-tech__submit {
  padding: 0.55rem 1rem;
  font-size: 0.8125rem;
}

.lc-comment-feed__reply-form-inner .lc-comment-feed__reply-cancel {
  padding: 0.35rem 0.75rem;
  font-size: 0.6875rem;
}

.lc-comment-feed__reply-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.lc-comment-tech.is-highlighted .lc-comment-tech__body {
  outline: 3px solid var(--lc-cyber-lime);
  outline-offset: 2px;
}

.lc-comment-form-tech__cancel {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--lc-text-secondary);
  font-size: 0.8125rem;
  font-weight: 700;
  background: none;
  border: none;
  padding: 0.25rem 0.5rem;
  cursor: pointer;
}

.lc-comment-form-tech__cancel:hover {
  color: var(--lc-on-surface);
  text-decoration: underline;
}

/* Respond card — v4 rounded layered card */
.lc-comments-tech__respond {
  position: relative;
  margin-top: 2.5rem;
  border: 1px solid var(--lc-border-divider);
  border-radius: var(--lc-radius-card);
  background: var(--lc-surface);
  box-shadow: var(--lc-shadow-soft);
  overflow: hidden;
  scroll-margin-top: calc(var(--lc-navbar-h, 72px) + 1.5rem);
}

.lc-comments-tech__respond > #respond,
.lc-comments-tech__respond > .comment-respond {
  margin: 0;
  padding: 0;
}

/* Header strip — v4 lime label bar */
.lc-comments-tech__form-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0;
  padding: 0.85rem 1.5rem;
  background: var(--lc-cyber-lime);
  border-bottom: 1px solid var(--lc-border-divider);
}

.lc-comments-tech__form-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  flex-shrink: 0;
  border-radius: var(--lc-radius-element);
  background: var(--lc-ink-black);
  color: var(--lc-cyber-lime);
}

.lc-comments-tech__form-title {
  margin: 0;
  font-family: var(--lc-font-display);
  font-size: 1.25rem;
  font-weight: 800;
  line-height: 1.2;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--lc-ink-black);
}

/* Form body padding (main forms only — inline reply forms stay compact) */
.lc-comments-tech__respond .lc-comment-form-tech:not(.lc-comment-feed__reply-form-inner),
.lc-comments-tech__respond .comment-form {
  padding: 1.5rem;
}

/* Comment form grid — scoped to comment areas only (not friend-links dialog) */
.lc-comments-tech__respond .lc-comment-form-tech:not(.lc-comment-feed__reply-form-inner),
.lc-comments-tech__respond .comment-form,
.lc-comment-feed__reply-form-inner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem 1.25rem;
  align-items: start;
}

.lc-comments-tech__respond .lc-comment-form-tech:not(.lc-comment-feed__reply-form-inner) > .lc-comment-form-tech__field--textarea,
.lc-comments-tech__respond .lc-comment-form-tech:not(.lc-comment-feed__reply-form-inner) > .lc-comment-form-tech__logged-in-as,
.lc-comments-tech__respond .lc-comment-form-tech:not(.lc-comment-feed__reply-form-inner) > .lc-comment-form-tech__must-log-in,
.lc-comments-tech__respond .lc-comment-form-tech:not(.lc-comment-feed__reply-form-inner) > .lc-comment-feed__reply-actions,
.lc-comments-tech__respond .lc-comment-form-tech:not(.lc-comment-feed__reply-form-inner) > .form-submit,
.lc-comments-tech__respond .lc-comment-form-tech:not(.lc-comment-feed__reply-form-inner) > .submit,
.lc-comments-tech__respond .lc-comment-form-tech:not(.lc-comment-feed__reply-form-inner) > .comment-notes,
.lc-comments-tech__respond .lc-comment-form-tech:not(.lc-comment-feed__reply-form-inner) > .comment-form-cookies-consent,
.lc-comments-tech__respond .comment-form > .form-submit,
.lc-comments-tech__respond .comment-form > .submit,
.lc-comments-tech__respond .comment-form > .comment-notes,
.lc-comments-tech__respond .comment-form > .logged-in-as,
.lc-comments-tech__respond .comment-form > .must-log-in,
.lc-comments-tech__respond .comment-form > .comment-form-cookies-consent,
.lc-comment-feed__reply-form-inner > .lc-comment-form-tech__field--textarea,
.lc-comment-feed__reply-form-inner > .lc-comment-form-tech__logged-in-as,
.lc-comment-feed__reply-form-inner > .lc-comment-form-tech__must-log-in,
.lc-comment-feed__reply-form-inner > .lc-comment-feed__reply-actions {
  grid-column: 1 / -1;
}

.lc-comment-form-tech__field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.lc-comment-form-tech__label {
  font-family: var(--lc-font-body);
  font-size: var(--lc-text-label-md);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--lc-on-surface);
}

.lc-comment-form-tech__required {
  color: var(--lc-neon-pink);
}

.lc-comment-form-tech__input,
.lc-comment-form-tech__textarea,
.lc-comment-form-tech input[type="text"],
.lc-comment-form-tech input[type="email"],
.lc-comment-form-tech input[type="url"],
.lc-comment-form-tech textarea,
.comment-form input[type="text"],
.comment-form input[type="email"],
.comment-form input[type="url"],
.comment-form textarea {
  width: 100%;
  padding: 0.75rem;
  font-family: var(--lc-font-body);
  font-size: var(--lc-text-body-md);
  border: 1px solid var(--lc-border-divider);
  border-radius: var(--lc-radius-element);
  background: var(--lc-surface-container-low);
  color: var(--lc-on-surface);
  outline: none;
  transition: background var(--lc-transition), border-color var(--lc-transition);
}

.lc-comment-form-tech input:focus,
.lc-comment-form-tech textarea:focus,
.comment-form input:focus,
.comment-form textarea:focus {
  border-color: transparent;
  background: var(--lc-surface-container-lowest);
  box-shadow: none;
  outline: 2px solid var(--lc-primary);
  outline-offset: 2px;
}

.lc-comment-form-tech__submit,
.lc-comment-form-tech .submit input,
.lc-comment-form-tech .submit button,
.comment-form .submit input,
.comment-form .submit button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  border: none;
  border-radius: var(--lc-radius-pill);
  background: var(--lc-primary);
  color: var(--lc-on-primary);
  font-family: var(--lc-font-body);
  font-size: var(--lc-text-label-md);
  font-weight: 700;
  cursor: pointer;
  transition: background var(--lc-transition);
}

.lc-comment-form-tech__submit:hover,
.lc-comment-form-tech .submit input:hover,
.lc-comment-form-tech .submit button:hover,
.comment-form .submit input:hover,
.comment-form .submit button:hover {
  background: var(--lc-primary-soft);
}

.lc-comment-form-tech .submit,
.comment-form .submit {
  margin-top: 0.5rem;
}

.lc-comment-form-tech__must-log-in,
.lc-comment-form-tech__logged-in-as,
.comment-form .logged-in-as,
.comment-form .must-log-in {
  font-size: var(--lc-text-body-md);
  color: var(--lc-on-surface-variant);
}

.lc-comment-form-tech__must-log-in a,
.lc-comment-form-tech__logged-in-as a {
  color: var(--lc-primary);
  font-weight: 700;
}

.lc-comment-tech {
  padding: 0;
  scroll-margin-top: calc(var(--lc-navbar-h, 72px) + 1.5rem);
}

#comments,
#respond {
  scroll-margin-top: calc(var(--lc-navbar-h, 72px) + 1.5rem);
}

/* Lightbox */
.lc-lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0, 0, 0, 0.92);
  align-items: center;
  justify-content: center;
}

.lc-lightbox--active {
  display: flex;
}

.lc-lightbox__close,
.lc-lightbox__nav {
  position: absolute;
  border: 1px solid var(--lc-border-divider);
  background: var(--lc-surface-container-lowest);
  color: var(--lc-on-surface);
  cursor: pointer;
  padding: 0.5rem;
  z-index: 2;
  box-shadow: var(--lc-shadow-soft);
  transition: transform var(--lc-transition), box-shadow var(--lc-transition), background var(--lc-transition), color var(--lc-transition);
}

.lc-lightbox__close {
  top: 1rem;
  right: 1rem;
}

.lc-lightbox__nav--prev { left: 1rem; }
.lc-lightbox__nav--next { right: 1rem; }

.lc-lightbox__content {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  overflow: hidden;
  touch-action: none;
}

.lc-lightbox__img {
  max-height: 90vh;
  max-width: 90vw;
  object-fit: contain;
  border: 1px solid var(--lc-border-divider);
  transform-origin: center center;
  will-change: transform;
  user-select: none;
  -webkit-user-drag: none;
  touch-action: none;
  cursor: zoom-in;
}

.lc-lightbox--zoomed .lc-lightbox__img {
  cursor: grab;
}

.lc-lightbox--dragging .lc-lightbox__img {
  cursor: grabbing;
}

.lc-lightbox__counter {
  position: absolute;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  color: #fff;
  font-family: var(--lc-font-body);
  font-size: var(--lc-text-label-md);
}

/* Share buttons — v4 圆形描边 */
.lc-share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid var(--lc-border-divider);
  border-radius: 9999px;
  background: transparent;
  color: var(--lc-text-secondary);
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.lc-share-btn:hover {
  border-color: var(--lc-primary);
  color: var(--lc-primary);
}

/* Floating actions — 保留功能态（--visible 显示/隐藏），视觉 v4 在 sections.css */
.lc-floating-actions {
  position: fixed;
  bottom: 1.25rem;
  right: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  z-index: 40;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
}

.lc-floating-actions--visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lc-floating-toc,
.lc-floating-comments {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--lc-border-divider);
  border-radius: 9999px;
  background: var(--lc-surface);
  color: var(--lc-on-surface);
  box-shadow: var(--lc-shadow-card);
  cursor: pointer;
  font-size: 0.75rem;
  font-weight: 700;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.lc-floating-toc:hover,
.lc-floating-comments:hover {
  border-color: var(--lc-primary);
  color: var(--lc-primary);
}

.lc-back-to-top {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  border: 1px solid var(--lc-border-divider);
  border-radius: 9999px;
  background: var(--lc-surface);
  color: var(--lc-on-surface);
  box-shadow: var(--lc-shadow-card);
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.lc-back-to-top:hover {
  border-color: var(--lc-primary);
  color: var(--lc-primary);
}

.lc-back-to-top__ring {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.lc-back-to-top__track,
.lc-back-to-top__progress {
  fill: none;
  stroke-width: 2.5;
  vector-effect: non-scaling-stroke;
}

.lc-back-to-top__track {
  stroke: var(--lc-border-divider);
  opacity: 0.6;
}

.lc-back-to-top__progress {
  stroke: var(--lc-primary);
  stroke-linecap: square;
  transition: stroke-dashoffset 0.15s linear;
}

.lc-back-to-top__pct {
  position: relative;
  z-index: 1;
  font-family: var(--lc-font-mono);
  font-size: 0.625rem;
  font-weight: 700;
  line-height: 1;
  transition: opacity 0.2s ease;
}

.lc-back-to-top__icon {
  position: absolute;
  inset: 0;
  margin: auto;
  z-index: 1;
  width: 20px;
  height: 20px;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.lc-back-to-top:hover .lc-back-to-top__pct {
  opacity: 0;
}

.lc-back-to-top:hover .lc-back-to-top__icon {
  opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
  .lc-back-to-top__progress {
    transition: none;
  }

  .lc-back-to-top__pct,
  .lc-back-to-top__icon {
    transition: none;
  }

  .lc-comments-tech__pulse {
    animation: none;
  }
}

/* Floating TOC panel */
.lc-floating-toc-group {
  position: relative;
}

.lc-floating-toc__panel {
  position: absolute;
  bottom: 0;
  right: calc(100% + 0.75rem);
  z-index: 49;
  width: max-content;
  max-width: min(18rem, calc(100vw - 5rem));
  max-height: 60vh;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 0;
  background: var(--lc-surface-container-lowest);
  border: 1px solid var(--lc-border-divider);
  border-radius: var(--lc-radius-card);
  box-shadow: var(--lc-shadow-card);
  opacity: 0;
  visibility: hidden;
  transform: translateX(8px);
  transition: opacity 0.25s ease, visibility 0.25s ease, transform 0.25s ease;
  scrollbar-width: thin;
  scrollbar-color: color-mix(in srgb, var(--lc-on-surface) 35%, transparent) transparent;
}

.lc-floating-toc__panel::-webkit-scrollbar {
  width: 4px;
}

.lc-floating-toc__panel::-webkit-scrollbar-thumb {
  background: color-mix(in srgb, var(--lc-on-surface) 35%, transparent);
  border-radius: 2px;
}

.lc-floating-toc__panel.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}

.lc-floating-toc__inner {
  padding: 1rem;
}

.lc-floating-toc__inner .lc-toc__header {
  display: flex;
  margin-bottom: 0.625rem;
  padding-bottom: 0.5rem;
}

.lc-floating-toc__inner .lc-toc__title {
  font-size: 0.8125rem;
}

.lc-floating-toc__inner .lc-toc__toggle {
  display: none;
}

.lc-floating-toc__inner .lc-toc__list {
  display: block !important;
}

.lc-floating-toc.is-active {
  background: var(--lc-primary);
  color: var(--lc-on-primary);
}

@media (min-width: 1024px) {
  body:has(.lc-article__toc-sidebar) .lc-floating-toc,
  body:has(.lc-article__toc-sidebar) .lc-floating-toc__panel {
    display: none !important;
  }
}

/* Article content prose */
.lc-article__content h2,
.lc-article__content h3,
.lc-article__content h4 {
  font-family: var(--lc-font-heading);
  margin: 2.5rem 0 1rem;
  line-height: 1.25;
  color: var(--lc-on-surface);
}

.lc-article__content h2 {
  font-size: var(--lc-text-headline-md);
}

.lc-article__content h3 {
  font-size: var(--lc-text-headline-sm);
}

.lc-article__content h4 {
  font-size: var(--lc-text-body-lg);
}

.lc-article__content p,
.lc-article__content li {
  font-size: var(--lc-text-body-lg);
  line-height: 1.75;
}

.lc-article__content p {
  margin: 0 0 1.25rem;
  word-break: break-word;
}

.lc-article__content a {
  color: var(--lc-primary);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.lc-article__content a:hover {
  color: var(--lc-primary-soft);
}

.lc-article__content ul,
.lc-article__content ol {
  margin: 1rem 0 1.25rem;
  padding-left: 0;
}

.lc-article__content li {
  margin-bottom: 0.5rem;
}

.lc-article__content blockquote {
  margin: 1.5rem 0;
  padding: 0 0 0 1.25rem;
  border-left: 3px solid var(--lc-cyber-lime);
  font-style: italic;
}

.lc-article__content code:not(pre code) {
  font-family: var(--lc-font-mono);
  font-size: 0.875em;
  padding: 0.15em 0.45em;
  border: none;
  background: var(--lc-surface-container);
  color: var(--lc-primary);
}

.lc-article__content pre {
  margin: 1.5rem 0;
  overflow-x: auto;
}

.lc-article__content pre code {
  padding: 0;
  border: none;
  background: transparent;
  color: inherit;
}

/* Terminal wrapper — override generic prose pre/code rules */
.lc-article__content .wp-block-code:has(.lc-terminal--code),
.lc-article__content figure.wp-block-code:has(.lc-terminal--code) {
  margin: 0;
  padding: 0;
  background: transparent;
  border: none;
  box-shadow: none;
}

.lc-article__content .lc-terminal--code {
  margin: 1.5rem 0;
}

.lc-article__content .lc-terminal--code pre {
  margin: 0;
  padding: 1rem 1.25rem;
  background: var(--lc-terminal-bg);
  color: var(--lc-terminal-text);
  overflow-x: auto;
}

.lc-article__content .lc-terminal--code pre code,
.lc-article__content .lc-terminal--code pre code:hover {
  padding: 0;
  border: none;
  background: transparent;
  color: inherit;
}

.lc-article__content img {
  max-width: 100%;
  height: auto;
  margin: 1.5rem 0;
}

.lc-article__content hr {
  margin: 2rem 0;
  border: none;
  border-top: 1px solid var(--lc-border-divider);
}

.lc-article__content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
}

.lc-article__content th,
.lc-article__content td {
  padding: 0.75rem;
  border: 1px solid var(--lc-outline-variant);
  font-family: var(--lc-font-body);
  font-size: 0.875rem;
}

.lc-article__content th {
  background: var(--lc-surface-container);
  font-weight: 700;
}

/* Reading progress bar (site-wide, inside fixed nav) */
.lc-nav .lc-reading-progress,
.lc-hero--navbar .lc-reading-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  z-index: 0;
  pointer-events: none;
  background: transparent;
}

.lc-reading-progress__bar {
  position: fixed;
  top: 0;
  left: 0;
  display: block;
  width: 100%;
  height: 3px;
  background: var(--lc-cyber-lime);
  z-index: 60;
  transform-origin: left center;
  transform: scaleX(0);
}

/* v4 editorial section header variant */
.lc-section__header { margin-bottom: clamp(1.5rem, 3vw, 2.5rem); }
.lc-section__slash--lime { color: var(--lc-cyber-lime-on-surface); }
.lc-section__slash--pink { color: var(--lc-neon-pink); }
.lc-section__slash--purple { color: var(--lc-primary); }
.lc-section__underline--lime { background: var(--lc-cyber-lime); }
.lc-section__underline--pink { background: var(--lc-neon-pink); }
.lc-section__underline--purple { background: var(--lc-primary); }
.lc-section__header--compact .lc-section__title { font-size: 1.5rem; }
.lc-section__more { font-family: var(--lc-font-mono); font-size: 0.8125rem; color: var(--lc-text-secondary); transition: color 0.2s ease; }
.lc-section__more:hover { color: var(--lc-on-surface); }
.lc-section__more .lc-material-icon { font-size: 1rem; vertical-align: -2px; }

/* v4 — 导航 */
.lc-nav__list > li.menu-item { position: relative; }
.lc-nav__list > li.menu-item > a,
.lc-nav__list > li.menu-item > .lc-nav__trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.375rem 0.75rem;
  border-radius: var(--lc-radius-pill);
  font-family: var(--lc-font-ui);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--lc-text-secondary);
  transition: color 0.2s ease, background-color 0.2s ease;
}
.lc-nav__list > li.menu-item > a:hover,
.lc-nav__list > li.menu-item > .lc-nav__trigger:hover { color: var(--lc-on-surface); background: var(--lc-surface-container); }
.lc-nav__list > li.menu-item > a.lc-nav__link--current,
.lc-nav__list > li.menu-item > .lc-nav__trigger.lc-nav__link--current {
  color: var(--lc-on-surface);
}
.lc-nav__list > li.menu-item > a.lc-nav__link--current::after,
.lc-nav__list > li.menu-item > .lc-nav__trigger.lc-nav__link--current::after {
  content: "";
  display: block;
  height: 2px;
  border-radius: 9999px;
  background: var(--lc-cyber-lime);
  margin-top: 2px;
}
.lc-nav__list .sub-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 180px;
  padding: 0.5rem;
  background: var(--lc-surface);
  border: 1px solid var(--lc-border-divider);
  border-radius: var(--lc-radius-card);
  box-shadow: var(--lc-shadow-card);
  opacity: 0;
  visibility: hidden;
  transform: translateY(4px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
  z-index: 50;
}
.lc-nav__list .menu-item:hover > .sub-menu,
.lc-nav__list .menu-item:focus-within > .sub-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.lc-nav__list .sub-menu a {
  display: block;
  padding: 0.375rem 0.625rem;
  border-radius: var(--lc-radius-element);
  color: var(--lc-text-secondary);
  font-size: 0.8125rem;
  transition: color 0.2s ease, background-color 0.2s ease;
}
.lc-nav__list .sub-menu a:hover { color: var(--lc-on-surface); background: var(--lc-surface-container); }
.lc-nav__list .sub-menu a.lc-nav__link--current { color: var(--lc-primary); }
.lc-nav__chevron { font-size: 1.125rem; transition: transform 0.2s ease; }
.lc-nav__list > li.menu-item-has-children:hover > .lc-nav__trigger .lc-nav__chevron { transform: rotate(180deg); }

/* v4 — 页脚 */
.lc-footer { position: relative; }
.lc-footer__nav a { color: var(--lc-text-secondary); font-size: 0.875rem; transition: color 0.2s ease; }
.lc-footer__nav a:hover { color: var(--lc-on-surface); }
.lc-footer__badges .lc-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem 0.625rem;
  border-radius: var(--lc-radius-pill);
  border: 1px solid var(--lc-border-divider);
  font-family: var(--lc-font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  color: var(--lc-text-secondary);
  transition: color 0.2s ease, border-color 0.2s ease;
}
.lc-footer__badges .lc-badge:hover { color: var(--lc-on-surface); border-color: var(--lc-on-surface); }
.lc-footer__badges .lc-badge__label { color: var(--lc-text-secondary); }
.lc-footer__badges .lc-badge__value { font-weight: 700; }

/* v4 — 评论 */
.lc-comment-feed__item {
  background: var(--lc-surface);
  border: 1px solid var(--lc-border-divider);
  border-radius: var(--lc-radius-card);
  box-shadow: var(--lc-shadow-soft);
}

.lc-comment-feed__item { margin-bottom: 0.75rem; }

.lc-comment-tech__body { padding: 1rem 1.25rem; }

.lc-comment-tech__meta,
.lc-comment-feed__source {
  font-family: var(--lc-font-mono);
  font-size: 0.75rem;
  color: var(--lc-text-secondary);
}

.lc-comment-tech__author {
  font-family: var(--lc-font-display);
  font-weight: 700;
}

.lc-comment-feed__reply,
.lc-comment-feed__reply-cancel {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: none;
  border: none;
  padding: 0;
  color: var(--lc-primary);
  font-weight: 700;
  font-size: 0.8125rem;
  cursor: pointer;
}

.lc-comment-feed__reply:hover,
.lc-comment-feed__reply:focus-visible,
.lc-comment-feed__reply-cancel:hover,
.lc-comment-feed__reply-cancel:focus-visible {
  color: var(--lc-primary);
  text-decoration: underline;
}

.lc-comment-feed__reply svg,
.lc-comment-feed__reply-cancel svg { flex-shrink: 0; }

.lc-comment-tech__footer .comment-reply-link {
  color: var(--lc-primary);
  font-weight: 700;
  font-size: 0.8125rem;
}
.lc-comment-tech__footer .comment-reply-link:hover { text-decoration: underline; }

.lc-comment-feed__reply-to-link {
  color: var(--lc-primary);
  font-family: var(--lc-font-mono);
  font-size: 0.75rem;
}

.lc-comment-tech__avatar {
  border-radius: 9999px;
  overflow: hidden;
}

.lc-comment-feed__reply-form textarea,
.lc-comment-form-tech__textarea {
  width: 100%;
  border: 1px solid var(--lc-border-divider);
  border-radius: var(--lc-radius-element);
  background: var(--lc-surface-container-low);
  padding: 0.625rem 0.75rem;
  color: var(--lc-on-surface);
}
.lc-comment-feed__reply-form textarea:focus,
.lc-comment-form-tech__textarea:focus {
  outline: 2px solid var(--lc-primary);
  outline-offset: 2px;
  border-color: transparent;
}

.lc-comment-form-tech__input {
  border: 1px solid var(--lc-border-divider);
  border-radius: var(--lc-radius-element);
  background: var(--lc-surface-container-low);
  padding: 0.5rem 0.75rem;
  color: var(--lc-on-surface);
  width: 100%;
}
.lc-comment-form-tech__input:focus {
  outline: 2px solid var(--lc-primary);
  outline-offset: 2px;
  border-color: transparent;
}

.lc-comment-form-tech__submit {
  border-radius: 9999px;
  background: var(--lc-primary);
  color: var(--lc-on-primary);
  border: none;
  padding: 0.5rem 1.25rem;
  font-weight: 700;
  cursor: pointer;
}
.lc-comment-form-tech__submit:hover {
  background: var(--lc-primary-soft);
}