.walkthrough-hero {
  position: relative;
  overflow: hidden;
  padding: 112px 0 78px;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(90deg, rgba(7, 9, 16, 0.97) 0%, rgba(7, 9, 16, 0.86) 48%, rgba(7, 9, 16, 0.36) 100%),
    linear-gradient(0deg, var(--bg), transparent 45%),
    url("../images/v2/gallery/time_portal_observation.jpg") center 34% / cover no-repeat;
}

.walkthrough-hero::after {
  position: absolute;
  inset: 0;
  content: "";
  pointer-events: none;
  background: radial-gradient(circle at 76% 42%, rgba(88, 217, 239, 0.15), transparent 28rem);
}

.walkthrough-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.65fr);
  gap: 64px;
  align-items: end;
}

.walkthrough-hero h1 {
  max-width: 800px;
  margin: 0 0 22px;
  font-size: clamp(3rem, 7vw, 6.4rem);
}

.walkthrough-hero h1 + p {
  max-width: 760px;
  color: #d0d8e5;
  font-size: 1.08rem;
}

.guide-library-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.guide-library-stats > span {
  display: inline-flex;
  gap: 9px;
  padding: 8px 12px;
  align-items: baseline;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(9, 13, 22, 0.72);
  font-size: 0.78rem;
}

.guide-library-stats strong {
  color: var(--cyan);
  font-size: 1rem;
}

.official-guide-callout {
  padding: 28px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(19, 29, 45, 0.94), rgba(13, 18, 29, 0.9));
  box-shadow: var(--shadow);
}

.official-guide-callout h2 {
  margin: 15px 0 12px;
  font-size: clamp(1.55rem, 2.5vw, 2.25rem);
}

.official-guide-callout p {
  margin: 0;
  color: var(--muted);
}

.guide-browser {
  min-height: 80vh;
}

.guide-tools {
  position: sticky;
  top: 72px;
  z-index: 8;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 360px);
  gap: 18px;
  margin-bottom: 12px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(7, 9, 16, 0.94);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.32);
  backdrop-filter: blur(18px);
}

.guide-filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.guide-filter-row .filter-button {
  display: inline-flex;
  gap: 8px;
  align-items: center;
}

.guide-search {
  position: relative;
  display: flex;
  align-items: center;
}

.guide-search input {
  width: 100%;
  min-height: 46px;
  padding: 10px 48px 10px 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--ink);
  background: var(--panel-solid);
  font: inherit;
}

.guide-search input:focus {
  border-color: var(--cyan);
  outline: 2px solid rgba(88, 217, 239, 0.16);
}

.guide-search kbd {
  position: absolute;
  right: 12px;
  padding: 2px 8px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.035);
  font-family: var(--sans);
  font-size: 0.72rem;
}

.guide-results {
  margin: 16px 0 52px;
  color: var(--muted);
  font-size: 0.85rem;
}

.guide-results span:first-child {
  color: var(--cyan);
  font-weight: 800;
}

.guide-category-section {
  margin: 0 0 78px;
}

.category-heading {
  display: grid;
  grid-template-columns: minmax(260px, 0.75fr) minmax(280px, 0.55fr);
  gap: 42px;
  margin-bottom: 24px;
  align-items: end;
}

.category-heading h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.4rem);
}

.category-heading > p {
  margin: 0;
  color: var(--muted);
}

.guide-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.guide-card {
  position: relative;
  display: flex;
  min-height: 280px;
  padding: 24px;
  overflow: hidden;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(145deg, rgba(19, 27, 42, 0.95), rgba(11, 16, 27, 0.94));
  transition: border-color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.guide-card::after {
  position: absolute;
  right: -38px;
  bottom: -60px;
  width: 150px;
  height: 150px;
  border: 1px solid rgba(88, 217, 239, 0.13);
  border-radius: 50%;
  content: "";
  box-shadow: 0 0 0 25px rgba(88, 217, 239, 0.025), 0 0 0 50px rgba(173, 140, 255, 0.02);
}

.guide-card:hover {
  border-color: var(--line-strong);
  box-shadow: 0 22px 54px rgba(0, 0, 0, 0.3);
  transform: translateY(-3px);
}

.guide-card-top {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: flex-start;
}

.guide-category,
.translation-status {
  color: var(--gold);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.translation-status {
  color: #8793a7;
  text-align: right;
}

.translation-status.is-ready {
  color: var(--cyan);
}

.guide-card h3 {
  position: relative;
  z-index: 1;
  margin: 26px 0 12px;
  font-size: 1.45rem;
  line-height: 1.25;
}

.guide-card p {
  position: relative;
  z-index: 1;
  margin: 0 0 22px;
  color: var(--muted);
  font-size: 0.9rem;
}

.guide-card > a {
  position: relative;
  z-index: 1;
  width: fit-content;
  margin-top: auto;
  color: var(--cyan);
  font-size: 0.86rem;
  font-weight: 800;
}

.wiki-bridge {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 50px;
  align-items: center;
}

.wiki-bridge h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
}

.wiki-bridge p:not(.eyebrow) {
  max-width: 780px;
  color: var(--muted);
}

.guide-masthead {
  padding: 92px 0 54px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 80% 15%, rgba(88, 217, 239, 0.12), transparent 30rem),
    linear-gradient(180deg, rgba(24, 30, 49, 0.66), transparent);
}

.breadcrumb {
  display: flex;
  gap: 9px;
  margin-bottom: 34px;
  align-items: center;
  color: var(--muted);
  font-size: 0.8rem;
}

.breadcrumb a {
  color: var(--cyan);
  font-weight: 800;
}

.guide-masthead h1 {
  max-width: 980px;
  margin: 0;
  font-size: clamp(2.55rem, 6vw, 5.6rem);
}

.guide-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.guide-meta span {
  padding: 7px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.025);
  font-size: 0.74rem;
  font-weight: 700;
}

.guide-layout {
  display: grid;
  grid-template-columns: minmax(210px, 260px) minmax(0, 820px);
  gap: clamp(38px, 6vw, 90px);
  padding-top: 54px;
  padding-bottom: 100px;
  justify-content: center;
  align-items: start;
}

.guide-sidebar {
  position: sticky;
  top: 98px;
  max-height: calc(100vh - 120px);
  padding-right: 18px;
  overflow: auto;
  scrollbar-width: thin;
}

.back-to-library {
  display: inline-block;
  margin-bottom: 28px;
  color: var(--cyan);
  font-size: 0.82rem;
  font-weight: 800;
}

.guide-sidebar h2 {
  margin: 0 0 12px;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.guide-toc {
  display: grid;
  gap: 2px;
  border-left: 1px solid var(--line);
}

.guide-toc a {
  padding: 6px 0 6px 14px;
  border-left: 1px solid transparent;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.35;
}

.guide-toc a:hover,
.guide-toc a.is-current {
  border-left-color: var(--cyan);
  color: var(--ink);
}

.guide-toc .toc-level-3 {
  padding-left: 26px;
  color: #8793a7;
  font-size: 0.73rem;
}

.toc-empty {
  padding-left: 14px;
  color: var(--muted);
  font-size: 0.78rem;
}

.guide-content {
  min-width: 0;
}

.spoiler-notice {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  margin-bottom: 34px;
  padding: 15px 18px;
  border: 1px solid rgba(231, 187, 106, 0.22);
  border-radius: var(--radius-sm);
  color: #d5c6a6;
  background: rgba(70, 47, 19, 0.2);
  font-size: 0.82rem;
}

.spoiler-notice strong {
  color: var(--gold);
}

.markdown-body {
  color: #d7deea;
  font-size: 1rem;
  line-height: 1.82;
}

.markdown-body h2,
.markdown-body h3 {
  scroll-margin-top: 100px;
}

.anchor-alias {
  position: relative;
  top: -100px;
  display: block;
  height: 0;
  visibility: hidden;
}

.markdown-body h2 {
  margin: 3.3rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--line);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
}

.markdown-body h3 {
  margin: 2.35rem 0 0.75rem;
  color: #eef2f8;
  font-family: var(--sans);
  font-size: 1.22rem;
}

.markdown-body h4 {
  margin: 1.8rem 0 0.6rem;
  color: var(--cyan);
  font-family: var(--sans);
  font-size: 1rem;
}

.markdown-body p,
.markdown-body ul,
.markdown-body ol,
.markdown-body blockquote {
  margin: 0 0 1.15rem;
}

.markdown-body ul,
.markdown-body ol {
  padding-left: 1.4rem;
}

.markdown-body li + li {
  margin-top: 0.38rem;
}

.markdown-body a {
  color: var(--cyan);
  text-decoration: underline;
  text-decoration-color: rgba(88, 217, 239, 0.35);
  text-underline-offset: 3px;
}

.markdown-body strong {
  color: #f6f1e8;
}

.markdown-body code {
  padding: 0.12em 0.38em;
  border: 1px solid rgba(173, 140, 255, 0.17);
  border-radius: 5px;
  color: #d8caff;
  background: rgba(173, 140, 255, 0.08);
  font-size: 0.86em;
}

.markdown-body pre {
  padding: 18px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #080b12;
}

.markdown-body pre code {
  padding: 0;
  border: 0;
  color: #dce4ef;
  background: transparent;
}

.markdown-body blockquote {
  padding: 16px 18px;
  border-left: 3px solid var(--gold);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: #d5c8aa;
  background: rgba(231, 187, 106, 0.07);
}

.guide-table-wrap {
  max-width: 100%;
  margin: 1.5rem 0 2rem;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(9, 13, 22, 0.74);
}

.markdown-body table {
  width: 100%;
  min-width: 580px;
  border-collapse: collapse;
  font-size: 0.84rem;
  line-height: 1.55;
}

.markdown-body th,
.markdown-body td {
  padding: 10px 13px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.markdown-body th {
  color: var(--ink);
  background: rgba(88, 217, 239, 0.08);
}

.markdown-body tr:last-child td {
  border-bottom: 0;
}

.translation-pending {
  padding: 34px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  background: var(--panel);
}

.translation-pending strong {
  display: block;
  margin-bottom: 8px;
  color: var(--cyan);
  font-size: 1.2rem;
}

.translation-pending p {
  margin: 0;
  color: var(--muted);
}

.guide-community-note {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 28px;
  margin-top: 64px;
  padding: 25px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

.guide-community-note strong {
  color: var(--gold);
}

.guide-community-note p {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.guide-community-note a {
  color: var(--cyan);
  font-size: 0.82rem;
  font-weight: 800;
  white-space: nowrap;
}

.guide-pager {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 22px;
}

.guide-pager a {
  display: flex;
  min-height: 92px;
  padding: 16px;
  flex-direction: column;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.025);
}

.guide-pager a:last-child {
  text-align: right;
}

.guide-pager span {
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.guide-pager strong {
  margin-top: 4px;
  color: var(--cyan);
  font-size: 0.86rem;
}

.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), var(--violet));
  box-shadow: 0 0 14px rgba(88, 217, 239, 0.7);
}

@media (max-width: 1100px) {
  .guide-card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 960px) {
  .walkthrough-hero-inner,
  .guide-tools,
  .category-heading {
    grid-template-columns: 1fr;
  }

  .walkthrough-hero-inner {
    gap: 34px;
  }

  .guide-tools {
    position: static;
  }

  .guide-layout {
    grid-template-columns: 1fr;
    padding-top: 30px;
  }

  .guide-sidebar {
    position: static;
    max-height: none;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.02);
  }

  .guide-toc {
    max-height: 260px;
    overflow: auto;
  }
}

@media (max-width: 680px) {
  .walkthrough-hero {
    padding: 82px 0 52px;
    background-position: 62% center;
  }

  .walkthrough-hero h1 {
    font-size: clamp(2.8rem, 14vw, 4.7rem);
  }

  .guide-card-grid,
  .wiki-bridge,
  .guide-community-note,
  .guide-pager,
  .spoiler-notice {
    grid-template-columns: 1fr;
  }

  .guide-card {
    min-height: 250px;
  }

  .guide-filter-row {
    flex-wrap: nowrap;
    padding-bottom: 5px;
    overflow-x: auto;
  }

  .guide-filter-row .filter-button {
    flex: 0 0 auto;
  }

  .guide-masthead {
    padding: 68px 0 40px;
  }

  .guide-masthead h1 {
    font-size: clamp(2.25rem, 11vw, 4rem);
  }

  .guide-layout {
    padding-bottom: 64px;
  }

  .guide-community-note a {
    white-space: normal;
  }

  .guide-pager a:last-child {
    text-align: left;
  }
}