.page-home {
  --home-line: rgba(36, 64, 92, 0.16);
  --home-paper-line: rgba(10, 26, 42, 0.18);
  --home-ink-soft: #33465a;
  --home-ink-dim: #4a5a6a;
  --home-haze: rgba(255, 122, 41, 0.08);

  background-color: var(--ink);
  background-image:
    repeating-linear-gradient(to right, var(--home-line) 0 1px, transparent 1px 48px),
    repeating-linear-gradient(to bottom, var(--home-line) 0 1px, transparent 1px 48px);
  padding-bottom: 64px;
  overflow-x: hidden;
}

.page-home .home-wrap {
  padding-top: 4px;
}

/* ---------- 顶部上下文行 ---------- */

.page-home .home-context {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 20px 0 12px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 26px;
}

.page-home .home-context .crumbs-list {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-home .home-context .crumbs-item {
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.page-home .home-context-note {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--muted);
  opacity: 0.8;
}

/* ---------- 面板基础 ---------- */

.page-home .home-panel {
  position: relative;
  background-color: var(--panel);
  border: 1px solid var(--line);
  padding: 26px 20px 28px;
  margin: 0 0 22px;
  transition: transform 180ms var(--ease), border-color 180ms var(--ease);
}

.page-home .home-panel.panel--with-marginalia {
  padding-left: 72px;
}

@media (hover: hover) {
  .page-home .home-panel:hover {
    transform: translateY(-2px);
    border-color: var(--signal);
  }
}

.page-home .panel-num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1;
  letter-spacing: 0.14em;
  color: var(--muted);
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 0;
  padding: 4px 7px;
  margin: 0 0 14px;
  transition: color 120ms var(--ease), border-color 120ms var(--ease);
}

.page-home .panel-num:hover,
.page-home .panel-num:focus-visible {
  color: var(--signal);
  border-color: var(--signal);
}

.page-home .panel-num:focus-visible {
  outline: 3px solid var(--signal);
  outline-offset: 2px;
}

.page-home .home-panel h2 {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 26px;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--text);
  margin: 0 0 12px;
}

.page-home .home-panel h3 {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 19px;
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--text);
  margin: 0;
}

.page-home .home-panel p {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  margin: 0 0 12px;
  max-width: 42em;
}

.page-home .home-panel .eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--muted);
  margin: 0 0 10px;
}

.page-home .home-panel .lede {
  font-size: 17px;
  color: var(--text);
}

/* ---------- 旁注带 ---------- */

.page-home .home-marginalia {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 56px;
  border-right: 1px solid var(--line);
  display: flex;
  justify-content: center;
  padding-top: 26px;
  overflow: hidden;
  pointer-events: none;
}

.page-home .home-marginalia span {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--muted);
  opacity: 0.75;
  white-space: nowrap;
  transition: transform 180ms var(--ease), opacity 180ms var(--ease), color 180ms var(--ease);
}

@media (hover: hover) {
  .page-home .home-panel:hover .home-marginalia span {
    transform: translateX(6px);
    opacity: 1;
    color: var(--violet);
  }
}

/* ---------- P.01 主题声明 ---------- */

.page-home .home-decl {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.page-home .home-decl h1 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 30px;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--text);
  margin: 0 0 14px;
}

.page-home .home-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background-color: var(--line);
  border: 1px solid var(--line);
  margin: 20px 0 0;
}

.page-home .home-stats > div {
  background-color: var(--ink);
  padding: 12px 14px;
}

.page-home .home-stats dt {
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 6px;
}

.page-home .home-stats dd {
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1.3;
  color: var(--signal);
  margin: 0;
}

/* ---------- 媒体外壳 ---------- */

.page-home .home-media {
  margin: 0;
  border: 1px solid var(--line);
  background-color: var(--ink);
  padding: 10px;
}

.page-home .home-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 0;
}

.page-home .home-media .media-caption {
  font-family: var(--font-body);
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
  margin: 10px 2px 0;
}

/* ---------- P.02 栏目索引 ---------- */

.page-home .home-index {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.page-home .home-entries {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.page-home .home-entry {
  background-color: var(--ink);
  border: 1px solid var(--line);
  border-left-width: 2px;
  padding: 16px 16px 18px;
  transition: border-color 180ms var(--ease), background-color 180ms var(--ease);
}

.page-home .home-entry--a {
  border-left-color: var(--signal);
}

.page-home .home-entry--b {
  border-left-color: var(--teal);
}

@media (hover: hover) {
  .page-home .home-entry:hover {
    background-color: var(--home-haze);
  }
}

.page-home .home-entry-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 8px;
}

.page-home .home-entry-num {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--violet);
  flex: none;
}

.page-home .home-entry p {
  font-size: 15px;
  margin: 0 0 14px;
}

.page-home .btn {
  border-radius: 0;
}

.page-home .btn--signal {
  background-color: var(--signal);
  border: 1px solid var(--signal);
  color: var(--on-amber);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14px;
  padding: 8px 16px;
  display: inline-block;
  text-decoration: none;
  transition: background-color 120ms var(--ease), color 120ms var(--ease);
}

.page-home .btn--ghost {
  background-color: transparent;
  border: 1px solid var(--line);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 14px;
  padding: 8px 16px;
  display: inline-block;
  text-decoration: none;
  transition: border-color 120ms var(--ease), color 120ms var(--ease);
}

.page-home .btn--ghost:hover,
.page-home .btn--ghost:focus-visible {
  border-color: var(--signal);
  color: var(--signal);
}

.page-home .btn:focus-visible {
  outline: 3px solid var(--signal);
  outline-offset: 2px;
}

/* ---------- P.03 档位筛选 ---------- */

.page-home .home-filter {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.page-home .home-filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 20px;
}

.page-home .home-filter-btn {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1;
  padding: 9px 15px;
  background-color: transparent;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 0;
  cursor: pointer;
  transition: background-color 120ms var(--ease), border-color 120ms var(--ease), color 120ms var(--ease);
}

.page-home .home-filter-btn:hover {
  border-color: var(--signal);
  color: var(--signal);
}

.page-home .home-filter-btn:focus-visible {
  outline: 3px solid var(--signal);
  outline-offset: 2px;
}

.page-home .home-filter-btn[aria-pressed="true"] {
  background-color: var(--signal);
  border-color: var(--signal);
  color: var(--on-amber);
}

.page-home .home-tiers {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-home .home-tier {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 13px 8px;
  border-bottom: 1px solid var(--line);
  transition: background-color 180ms var(--ease);
}

@media (hover: hover) {
  .page-home .home-tier:hover {
    background-color: var(--home-haze);
  }
}

.page-home .home-tier-name {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 16px;
  color: var(--text);
}

.page-home .home-tier-desc {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.6;
  color: var(--muted);
}

.page-home .home-tier .tag {
  justify-self: start;
}

.page-home .tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  line-height: 1;
  padding: 4px 7px;
  border: 1px solid var(--line);
  border-radius: 0;
  color: var(--muted);
  background-color: transparent;
}

.page-home .tag--signal {
  border-color: var(--signal);
  color: var(--signal);
}

.page-home .tag--violet {
  border-color: var(--violet);
  color: var(--violet);
}

.page-home .tag--teal {
  border-color: var(--teal);
  color: var(--teal);
}

/* ---------- P.04 纸面面板 ---------- */

.page-home .home-paper {
  background-color: var(--paper);
  border-color: var(--home-paper-line);
}

.page-home .home-paper h2,
.page-home .home-paper h3 {
  color: var(--ink);
}

.page-home .home-paper p {
  color: var(--home-ink-soft);
}

.page-home .home-paper .eyebrow {
  color: var(--home-ink-dim);
}

.page-home .home-paper .panel-num {
  color: var(--home-ink-dim);
  border-color: var(--home-paper-line);
}

.page-home .home-paper .panel-num:hover,
.page-home .home-paper .panel-num:focus-visible {
  color: var(--signal);
  border-color: var(--signal);
}

.page-home .home-paper .btn--ghost {
  color: var(--ink);
  border-color: var(--home-paper-line);
}

.page-home .home-paper .btn--ghost:hover,
.page-home .home-paper .btn--ghost:focus-visible {
  color: var(--signal);
  border-color: var(--signal);
}

.page-home .home-log {
  list-style: none;
  margin: 18px 0 22px;
  padding: 0;
}

.page-home .home-log li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: 13px 0;
  border-top: 1px solid var(--home-paper-line);
}

.page-home .home-log li:last-child {
  border-bottom: 1px solid var(--home-paper-line);
}

.page-home .home-log .tag {
  justify-self: start;
  border-color: var(--home-paper-line);
  color: var(--home-ink-dim);
}

.page-home .home-log .tag--teal {
  border-color: var(--teal);
  color: #137a67;
}

.page-home .home-log .tag--violet {
  border-color: var(--violet);
  color: #5a3fd6;
}

.page-home .home-log p {
  margin: 0;
  font-size: 15px;
}

/* ---------- P.05 路径 ---------- */

.page-home .home-path-media {
  margin: 18px 0 0;
}

.page-home .home-steps {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background-color: var(--line);
  border: 1px solid var(--line);
}

.page-home .home-steps li {
  background-color: var(--panel);
  padding: 16px 16px 18px;
  display: grid;
  gap: 6px;
}

.page-home .home-step-num {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.page-home .home-step-name {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 18px;
  color: var(--text);
}

.page-home .home-step-desc {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.65;
  color: var(--muted);
}

/* ---------- P.06 底部索引带 ---------- */

.page-home .home-band-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin: 18px 0 24px;
}

.page-home .home-band-col h3 {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 15px;
  color: var(--muted);
  letter-spacing: 0.06em;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 10px;
}

.page-home .home-band-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-home .home-band-col .ft-link {
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 120ms var(--ease), border-color 120ms var(--ease);
}

.page-home .home-band-col .ft-link:hover,
.page-home .home-band-col .ft-link:focus-visible {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

.page-home .home-band-col .ft-link:focus-visible {
  outline: 3px solid var(--signal);
  outline-offset: 2px;
}

/* ---------- 断点 ---------- */

@media (max-width: 719px) {
  .page-home .home-panel.panel--with-marginalia {
    padding-left: 20px;
  }

  .page-home .home-marginalia {
    display: none;
  }
}

@media (min-width: 720px) {
  .page-home .home-log li {
    grid-template-columns: 84px minmax(0, 1fr);
    align-items: baseline;
    gap: 16px;
  }

  .page-home .home-steps {
    grid-template-columns: 5fr 4fr 3fr;
  }

  .page-home .home-band-grid {
    grid-template-columns: 4fr 5fr 3fr;
  }

  .page-home .home-tier {
    grid-template-columns: 132px minmax(0, 1fr) auto;
    align-items: baseline;
    gap: 16px;
    padding: 13px 10px;
  }

  .page-home .home-tier .tag {
    justify-self: end;
  }
}

@media (min-width: 860px) {
  .page-home .home-panel {
    padding: 30px 28px 32px;
  }

  .page-home .home-panel.panel--with-marginalia {
    padding-left: 84px;
  }

  .page-home .home-decl {
    grid-template-columns: 7fr 5fr;
    gap: 34px;
    align-items: start;
  }

  .page-home .home-index {
    grid-template-columns: 7fr 5fr;
    gap: 34px;
    align-items: start;
  }

  .page-home .home-filter {
    grid-template-columns: 8fr 4fr;
    gap: 34px;
    align-items: start;
  }

  .page-home .home-decl h1 {
    font-size: 40px;
    line-height: 1.2;
  }

  .page-home .home-panel h2 {
    font-size: 26px;
  }

  .page-home .home-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1100px) {
  .page-home .home-decl {
    grid-template-columns: 7fr 5fr;
    gap: 44px;
  }

  .page-home .home-filter-media {
    margin-top: 34px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .home-panel,
  .page-home .home-entry,
  .page-home .home-filter-btn,
  .page-home .home-tier,
  .page-home .home-marginalia span,
  .page-home .panel-num,
  .page-home .btn {
    transition: none;
  }

  .page-home .home-panel:hover {
    transform: none;
  }

  .page-home .home-panel:hover .home-marginalia span {
    transform: none;
  }
}