/* ==========================================================================
   万宝阁 · 图鉴
   ========================================================================== */
.codex-layout {
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr);
  gap: clamp(32px, 5vw, 76px);
  padding: 52px 0 110px;
}
.codex-side {
  position: sticky;
  top: 92px;
  align-self: start;
  min-width: 0;
}
.side-label {
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--muted-2);
  margin-bottom: 14px;
}
.codex-tabs {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
  max-width: 100%;
  min-width: 0;
}
.codex-tabs button {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding: 11px 0 11px 12px;
  border-bottom: 1px solid var(--line);
  border-left: 2px solid transparent;
  font-family: var(--kai);
  font-size: 14px;
  letter-spacing: 0.16em;
  color: var(--muted);
  text-align: left;
  transition: color var(--dur), border-color var(--dur), padding var(--dur);
}
.codex-tabs button b {
  font-family: var(--latin);
  font-weight: 400;
  font-size: 10px;
  letter-spacing: 0;
  color: var(--muted-2);
}
.codex-tabs button:hover {
  color: var(--text-soft);
}
.codex-tabs button.on {
  color: var(--realm);
  border-left-color: var(--realm);
  padding-left: 16px;
}
.codex-tabs button.on b {
  color: var(--realm);
}
.codex-search {
  margin-top: 30px;
}
.codex-search label {
  display: block;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--muted-2);
  margin-bottom: 8px;
}
.codex-search input {
  width: 100%;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--line-2);
  padding: 9px 11px;
  font-family: var(--serif);
  font-size: 12.5px;
  color: var(--text);
  outline: none;
  transition: border-color var(--dur);
}
.codex-search input:focus {
  border-color: var(--realm);
}
.codex-search input::placeholder {
  color: var(--muted-2);
}
.codex-source-note {
  margin-top: 14px;
  font-family: var(--kai);
  font-size: 10.5px;
  line-height: 1.8;
  letter-spacing: 0.04em;
  color: var(--muted-2);
}
.codex-source-note a {
  color: var(--realm);
  border-bottom: 1px solid var(--line-2);
}

.codex-main {
  min-width: 0;
}
.codex-titles {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.codex-titles h2 {
  font-size: clamp(30px, 3.4vw, 40px);
  letter-spacing: 0.12em;
}
.codex-titles span {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--muted);
}
.codex-intro {
  max-width: 42em;
  margin: 20px 0 14px;
  font-size: 14px;
  line-height: 2.05;
  color: var(--text-soft);
}
.codex-list {
  border-top: 1px solid var(--line);
}
.codex-item {
  display: grid;
  grid-template-columns: 236px minmax(0, 1fr);
  gap: 30px;
  padding: 24px 10px 24px 0;
  border-bottom: 1px solid var(--line);
  transition: background 300ms;
}
.codex-item:hover {
  background: rgba(233, 227, 211, 0.022);
}
.ci-head {
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-width: 0;
}
.ci-name {
  font-size: 22px;
  letter-spacing: 0.1em;
  color: var(--text);
  line-height: 1.35;
}
.ci-index {
  font-family: var(--latin);
  font-size: 11px;
  color: var(--cinnabar-2);
  letter-spacing: 0.1em;
  margin-right: 8px;
  vertical-align: 0.15em;
}
.ci-tag {
  font-family: var(--kai);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: var(--realm);
}
.ci-spec {
  font-family: var(--kai);
  font-size: 9px;
  letter-spacing: 0.12em;
  color: var(--cinnabar-2);
  border: 1px solid rgba(174, 68, 48, 0.45);
  padding: 1px 5px;
  white-space: nowrap;
}
.ci-meta {
  font-family: var(--kai);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: var(--muted-2);
}
.ci-desc {
  font-size: 13.5px;
  line-height: 2.05;
  color: var(--muted);
  margin: 0;
}
.codex-empty {
  padding: 60px 0;
  text-align: center;
  font-family: var(--kai);
  color: var(--muted-2);
  letter-spacing: 0.14em;
}

@media (max-width: 900px) {
  .codex-layout {
    grid-template-columns: 1fr;
    gap: 26px;
    padding-top: 34px;
  }
  .codex-side {
    position: static;
  }
  .codex-tabs {
    display: flex;
    overflow-x: auto;
    border-top: 1px solid var(--line);
    gap: 4px;
    width: 100%;
  }
  .codex-tabs button {
    border-left: 0;
    border-bottom: 2px solid transparent;
    white-space: nowrap;
    padding: 10px 12px;
  }
  .codex-tabs button.on {
    border-left: 0;
    border-bottom-color: var(--realm);
    padding-left: 12px;
  }
  .codex-search {
    margin-top: 14px;
  }
}
@media (max-width: 640px) {
  .codex-tabs {
    flex-wrap: wrap;
    overflow: visible;
  }
  .codex-item {
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 20px 0;
  }
}