.page-home {
  --ph-block-gap: clamp(38px, 6vw, 74px);
  --ph-hairline: 1px;
  --ph-radius-soft: 12px;
  overflow-x: clip;
}

.page-home * {
  min-width: 0;
}

/* ---------- 首屏 ---------- */

.page-home .hero {
  padding-block: clamp(28px, 5vw, 64px) clamp(36px, 6vw, 80px);
  position: relative;
}

.page-home .hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--c-line) 18%, var(--c-line) 82%, transparent);
}

.page-home .hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4.5vw, 54px);
}

@media (min-width: 920px) {
  .page-home .hero-grid {
    grid-template-columns: 5fr 7fr;
    align-items: center;
  }
}

.page-home .hero-pos {
  color: var(--c-amber);
  letter-spacing: 0.08em;
}

.page-home .hero-lead .display {
  margin-block: 0.45em 0.55em;
  max-width: 18em;
}

.page-home .hero-lead .lede {
  max-width: 34em;
  color: var(--c-text);
}

.page-home .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-block: clamp(20px, 3vw, 30px);
}

.page-home .hero-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--ph-hairline) solid var(--c-line);
}

.page-home .hero-facts li {
  display: grid;
  grid-template-columns: minmax(76px, auto) 1fr;
  gap: 8px 18px;
  padding: 11px 0;
  border-bottom: var(--ph-hairline) solid var(--c-line);
}

.page-home .hero-facts-k {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-muted);
  padding-top: 2px;
}

.page-home .hero-facts-v {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--c-text);
}

.page-home .hero-media {
  margin: 0;
  position: relative;
}

.page-home .hero-media::before {
  content: "";
  position: absolute;
  top: -10px;
  right: -10px;
  width: 54px;
  height: 54px;
  border-top: 2px solid var(--c-amber);
  border-right: 2px solid var(--c-amber);
  opacity: 0.55;
  pointer-events: none;
  z-index: 1;
}

.page-home .hero-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 连续画布 ---------- */

.page-home .canvas {
  padding-block: clamp(40px, 6vw, 86px);
}

.page-home .canvas-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 4.5vw, 58px);
}

@media (min-width: 1000px) {
  .page-home .canvas-grid {
    grid-template-columns: 5fr 7fr;
  }

  .page-home .canvas-rail {
    position: sticky;
    top: 96px;
    align-self: start;
  }
}

/* ---------- 路径导航 ---------- */

.page-home .rail-nav {
  border-top: var(--ph-hairline) solid var(--c-line);
  padding-top: 18px;
}

.page-home .rail-list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-home .rail-item {
  position: relative;
}

.page-home .rail-link {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 14px;
  padding: 11px 12px;
  border-left: 2px solid transparent;
  text-decoration: none;
  color: var(--c-muted);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease),
    background-color var(--dur) var(--ease);
}

.page-home .rail-link:hover,
.page-home .rail-link:focus-visible {
  color: var(--c-text);
  border-left-color: var(--c-amber);
  background: var(--c-panel);
}

.page-home .rail-idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-dim);
  padding-top: 3px;
}

.page-home .rail-label {
  display: block;
  font-size: 15px;
  font-weight: 500;
  color: inherit;
}

.page-home .rail-note {
  display: block;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--c-dim);
  margin-top: 3px;
}

.page-home .rail-item.is-current .rail-link {
  border-left-color: var(--c-amber);
  background: var(--c-panel);
  color: var(--c-text);
}

.page-home .rail-item.is-current .rail-idx {
  color: var(--c-amber);
}

.page-home .rail-item.is-current .rail-note {
  color: var(--c-celadon);
}

/* ---------- 右侧内容流 ---------- */

.page-home .canvas-flow {
  display: grid;
  gap: var(--ph-block-gap);
}

.page-home .flow-block {
  padding-top: 26px;
  border-top: var(--ph-hairline) solid var(--c-line);
}

.page-home .flow-block:first-child {
  padding-top: 0;
  border-top: none;
}

.page-home .flow-head {
  margin-bottom: 16px;
}

.page-home .flow-head .h2 {
  margin: 0.35em 0 0;
  max-width: 22em;
}

.page-home .flow-block p {
  max-width: 40em;
  line-height: 1.75;
}

/* ---------- 键值行 ---------- */

.page-home .data-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  border-top: var(--ph-hairline) solid var(--c-line);
}

.page-home .data-row {
  display: grid;
  gap: 5px;
  padding: 13px 0;
  border-bottom: var(--ph-hairline) solid var(--c-line);
}

@media (min-width: 620px) {
  .page-home .data-row {
    grid-template-columns: 148px 1fr;
    gap: 20px;
    align-items: baseline;
  }
}

.page-home .data-key {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--c-amber);
}

.page-home .data-value {
  font-size: 14.8px;
  line-height: 1.7;
  color: var(--c-text);
}

.page-home .note-line {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  margin-top: 18px;
  font-size: 14.4px;
  color: var(--c-muted);
}

/* ---------- 适配清单 ---------- */

.page-home .flow-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

@media (min-width: 760px) {
  .page-home .flow-split {
    grid-template-columns: 6fr 5fr;
    align-items: start;
    gap: 32px;
  }
}

.page-home .spec-list {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  border-top: var(--ph-hairline) solid var(--c-line);
}

.page-home .spec-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 11px 2px;
  border-bottom: var(--ph-hairline) solid var(--c-line);
  transition: background-color var(--dur) var(--ease);
}

.page-home .spec-row:hover {
  background: var(--c-panel);
}

.page-home .spec-name {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--c-text);
}

.page-home .spec-state {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--c-celadon);
  white-space: nowrap;
}

.page-home .spec-state::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-celadon);
  margin-right: 7px;
  vertical-align: middle;
}

.page-home .spec-foot {
  margin-top: 16px;
  font-size: 14px;
  color: var(--c-muted);
}

.page-home .flow-media {
  margin: 24px 0 0;
}

.page-home .flow-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-home .flow-media--side {
  margin-top: 0;
}

/* ---------- 三步读规则 ---------- */

.page-home .rule-stack {
  display: grid;
  gap: 10px;
  margin: 22px 0 24px;
}

.page-home .rule-step {
  border: var(--ph-hairline) solid var(--c-line);
  border-radius: var(--ph-radius-soft);
  background: var(--c-panel);
  overflow: hidden;
  transition: border-color var(--dur) var(--ease);
}

.page-home .rule-step[open] {
  border-color: var(--c-amber);
}

.page-home .rule-summary {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  font-weight: 500;
  color: var(--c-text);
}

.page-home .rule-summary::-webkit-details-marker {
  display: none;
}

.page-home .rule-summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--c-muted);
}

.page-home .rule-step[open] .rule-summary::after {
  content: "–";
  color: var(--c-amber);
}

.page-home .rule-no {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-amber);
}

.page-home .rule-body {
  padding: 0 18px 18px;
}

.page-home .rule-body p {
  margin: 0;
  font-size: 14.4px;
  line-height: 1.72;
  color: var(--c-muted);
}

/* ---------- 栏目更新 ---------- */

.page-home .flow-block--log {
  position: relative;
}

.page-home .ambient-frame {
  margin: 0 0 24px;
  border: var(--ph-hairline) solid var(--c-line);
  border-radius: var(--ph-radius-soft);
  overflow: hidden;
}

.page-home .ambient-frame img {
  display: block;
  width: 100%;
  height: clamp(120px, 20vw, 190px);
  object-fit: cover;
  opacity: 0.78;
}

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

.page-home .log-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 15px 0;
  border-bottom: var(--ph-hairline) solid var(--c-line);
}

@media (min-width: 620px) {
  .page-home .log-item {
    grid-template-columns: 62px 1fr;
    gap: 20px;
  }
}

.page-home .log-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-amber);
  padding-top: 3px;
}

.page-home .log-body .h3 {
  margin: 0 0 6px;
  font-size: 16.5px;
}

.page-home .log-body p {
  margin: 0;
  font-size: 14.4px;
  line-height: 1.7;
  color: var(--c-muted);
  max-width: 38em;
}

/* ---------- 收束 ---------- */

.page-home .flow-block--close {
  padding-top: 30px;
}

.page-home .flow-block--close .h2 {
  margin: 0 0 12px;
}

.page-home .close-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

/* ---------- 窄屏收敛 ---------- */

@media (max-width: 619px) {
  .page-home .hero-media::before {
    display: none;
  }

  .page-home .rail-link {
    padding-inline: 8px;
  }

  .page-home .log-item {
    padding: 13px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .rail-link,
  .page-home .rule-step,
  .page-home .spec-row {
    transition: none;
  }
}