/* Knowledge-base cards. Scope the overrides to the wiki page; Aurora applies
   a background underline and WebKit text fill to every article link. */
.dc-wiki-home .post-html {
  background: transparent !important;
  box-shadow: none !important;
  padding: 1.5rem 0 0 !important;
  margin-bottom: 0 !important;
  min-height: 0 !important;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans SC", "Microsoft YaHei", sans-serif;
}

.dc-wiki-home .dc-wiki-hero {
  position: relative;
  margin-bottom: 2rem;
}

.dc-wiki-home .dc-wiki-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  margin-bottom: .9rem;
  font-size: .75rem;
  letter-spacing: .12em;
  color: var(--text-normal);
}

.dc-wiki-home .dc-wiki-status {
  width: .4rem;
  height: .4rem;
  border-radius: 50%;
  background: #2dd4bf;
  box-shadow: 0 0 0 .25rem rgb(45 212 191 / 10%);
  animation: dcWikiPulse 3s ease-in-out infinite;
}

.dc-wiki-home .dc-wiki-hero h1 {
  margin: 0 0 1rem;
  padding: 0 0 .9rem;
  font-size: clamp(1.9rem, 3.6vw, 2.8rem);
  line-height: 1.2;
  letter-spacing: -.035em;
  font-weight: 750;
}

.dc-wiki-home .dc-wiki-hero h1::after {
  width: 5rem;
  height: 3px;
  background: linear-gradient(90deg, #2dd4bf, #818cf8, #f472b6);
}

.dc-wiki-home .dc-wiki-sub {
  margin: 0;
  color: var(--text-normal);
  font-size: .95rem;
  line-height: 1.8;
}

.dc-wiki-home .dc-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.2rem;
  margin: 2rem 0 1rem;
  /* Individual cards animate; disable the article's whole-block entrance. */
  animation: none;
}

.dc-wiki-home .post-html a.dc-card {
  --dc-accent: 45 212 191;
  position: relative;
  isolation: isolate;
  display: flex;
  flex-direction: column;
  gap: .9rem;
  min-width: 0;
  padding: 1.5rem;
  overflow: hidden;
  border: 1px solid rgb(var(--dc-accent) / 18%);
  border-radius: 1.25rem;
  background: var(--background-secondary);
  /* Reset Aurora's animated link underline and inherited text fill. */
  background-image: none;
  text-shadow: none;
  -webkit-text-fill-color: currentColor;
  color: var(--text-normal);
  text-decoration: none !important;
  opacity: 1;
  box-shadow: 0 6px 20px rgb(0 0 0 / 6%);
  animation: dcWikiEnter .65s cubic-bezier(.2, .65, .3, 1) backwards;
  animation-delay: .05s;
  transition: transform .28s ease, border-color .28s ease, box-shadow .28s ease;
}

.dc-wiki-home .post-html a.dc-card[data-category="aic"] { --dc-accent: 96 165 250; animation-delay: .1s; }
.dc-wiki-home .post-html a.dc-card[data-category="learning"] { --dc-accent: 167 139 250; animation-delay: .15s; }
.dc-wiki-home .post-html a.dc-card[data-category="xiaomibei"] { --dc-accent: 251 146 60; animation-delay: .2s; }
.dc-wiki-home .post-html a.dc-card[data-category="tools"] { --dc-accent: 52 211 153; animation-delay: .25s; }
.dc-wiki-home .post-html a.dc-card[data-category="agent"] { --dc-accent: 244 114 182; animation-delay: .3s; }

.dc-wiki-home .post-html a.dc-card::before,
.dc-wiki-home .post-html a.dc-card::after {
  content: "";
  position: absolute;
  z-index: -1;
  pointer-events: none;
}

.dc-wiki-home .post-html a.dc-card::before {
  inset: 0;
  background: radial-gradient(ellipse at 100% 0%, rgb(var(--dc-accent) / 12%), transparent 65%);
  opacity: .75;
  transition: opacity .35s ease;
}

.dc-wiki-home .post-html a.dc-card::after {
  top: 0;
  left: 15%;
  right: 15%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgb(var(--dc-accent) / 75%), transparent);
  transform: scaleX(.5);
  transition: transform .35s ease;
}

.dc-wiki-home .dc-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .5rem;
  margin-bottom: .4rem;
}

.dc-wiki-home .dc-card-icon {
  display: grid;
  place-items: center;
  width: 3rem;
  height: 3rem;
  flex-shrink: 0;
  border: 1px solid rgb(var(--dc-accent) / 20%);
  border-radius: .9rem;
  color: rgb(var(--dc-accent));
  background: rgb(var(--dc-accent) / 9%);
  transition: transform .3s ease, background .3s ease;
}

.dc-wiki-home .dc-card-icon svg {
  width: 1.5rem;
  height: 1.5rem;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.dc-wiki-home .dc-card-index {
  color: var(--text-normal);
  font-size: .63rem;
  font-weight: 500;
  letter-spacing: .07em;
  opacity: .65;
}

.dc-wiki-home .dc-card-title {
  color: var(--text-bright);
  font-size: 1.4rem;
  font-weight: 700;
  line-height: 1.3;
}

.dc-wiki-home .dc-card-desc {
  flex: 1;
  min-height: 3.3em;
  color: var(--text-normal);
  font-size: .87rem;
  line-height: 1.75;
}

.dc-wiki-home .dc-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin-top: .2rem;
}

.dc-wiki-home .dc-card-tags > span {
  padding: .2rem .6rem;
  border: 1px solid rgb(var(--dc-accent) / 14%);
  border-radius: 999px;
  font-size: .67rem;
  line-height: 1.5;
  color: var(--text-normal);
  background: rgb(var(--dc-accent) / 5%);
  transition: color .25s ease, border-color .25s ease, background .25s ease;
}

.dc-wiki-home .dc-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .6rem;
  padding-top: .9rem;
  margin-top: .3rem;
  border-top: 1px solid rgb(var(--dc-accent) / 12%);
}

.dc-wiki-home .dc-card-meta {
  color: var(--text-normal);
  font-size: .75rem;
}

.dc-wiki-home .dc-card-action {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  color: var(--text-normal);
  font-size: .75rem;
}

.dc-wiki-home .dc-card-action > span {
  display: inline-block;
  color: rgb(var(--dc-accent));
  font-size: 1.05rem;
  transition: transform .25s ease;
}

.dc-wiki-home .post-html a.dc-card:focus-visible {
  outline: 2px solid var(--text-accent);
  outline-offset: 4px;
  border-color: rgb(var(--dc-accent) / 65%);
}

@media (hover: hover) and (pointer: fine) {
  .dc-wiki-home .post-html a.dc-card:hover {
    transform: translateY(-6px);
    text-shadow: none;
    -webkit-text-fill-color: currentColor;
    border-color: rgb(var(--dc-accent) / 60%);
    box-shadow: 0 16px 34px rgb(0 0 0 / 14%), 0 0 24px rgb(var(--dc-accent) / 8%);
  }
  .dc-wiki-home .post-html a.dc-card:hover::before { opacity: 1; }
  .dc-wiki-home .post-html a.dc-card:hover::after { transform: scaleX(1); }
  .dc-wiki-home .dc-card:hover .dc-card-icon { transform: translateY(-2px) rotate(-6deg); background: rgb(var(--dc-accent) / 15%); }
  .dc-wiki-home .dc-card:hover .dc-card-action > span { transform: translate(3px, -3px); }
  .dc-wiki-home .dc-card:hover .dc-card-tags > span { border-color: rgb(var(--dc-accent) / 30%); background: rgb(var(--dc-accent) / 9%); }
}

.dc-wiki-home .dc-wiki-more {
  display: flex;
  flex-wrap: wrap;
  gap: .65rem;
  margin-top: 1.7rem;
}

.dc-wiki-home .post-html .dc-wiki-more a,
.dc-wiki-home .dc-wiki-more button {
  display: inline-flex;
  align-items: center;
  min-height: 2.5rem;
  padding: .5rem 1rem;
  border: 1px solid var(--background-trans);
  border-radius: 999px;
  color: var(--text-normal);
  background: var(--background-secondary);
  background-image: none;
  text-shadow: none;
  -webkit-text-fill-color: currentColor;
  font: inherit;
  font-size: .8rem;
  text-decoration: none;
  cursor: pointer;
  transition: border-color .2s ease, color .2s ease;
}

.dc-wiki-home .post-html .dc-wiki-more a:hover,
.dc-wiki-home .dc-wiki-more button:hover {
  color: var(--text-bright);
  border-color: var(--text-accent);
  text-shadow: none;
}

.dc-wiki-home .dc-wiki-more > :focus-visible {
  outline: 2px solid var(--text-accent);
  outline-offset: 3px;
}

.dc-wiki-home .post-html > h2 {
  margin: 2.5rem 0 .8rem;
  padding: 0;
  font-size: 1.2rem;
}
.dc-wiki-home .post-html > h2::after { display: none; }

@keyframes dcWikiEnter {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes dcWikiPulse {
  50% { box-shadow: 0 0 0 .4rem rgb(45 212 191 / 3%); }
}

@media (max-width: 1000px) {
  .dc-wiki-home .dc-card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 600px) {
  .dc-wiki-home .dc-card-grid { grid-template-columns: minmax(0, 1fr); gap: 1rem; }
  .dc-wiki-home .post-html a.dc-card { padding: 1.3rem; }
  .dc-wiki-home .dc-card-desc { min-height: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .dc-wiki-home .dc-wiki-status,
  .dc-wiki-home .post-html a.dc-card { animation: none; }
  .dc-wiki-home .post-html a.dc-card,
  .dc-wiki-home .post-html a.dc-card::before,
  .dc-wiki-home .post-html a.dc-card::after,
  .dc-wiki-home .dc-card-icon,
  .dc-wiki-home .dc-card-tags > span,
  .dc-wiki-home .dc-card-action > span,
  .dc-wiki-home .dc-wiki-more > * { transition: none !important; }
  .dc-wiki-home .post-html a.dc-card:hover,
  .dc-wiki-home .dc-card:hover .dc-card-icon,
  .dc-wiki-home .dc-card:hover .dc-card-action > span { transform: none; }
}