.page-home {
  padding-bottom: var(--section-y);
}

/* ---------- 页面上下文 ---------- */
.page-home .page-context {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.07em;
  color: var(--color-ink-muted);
}

.page-home .page-context__dot {
  display: inline-block;
  width: var(--space-1);
  height: var(--space-1);
  border-radius: var(--radius-sm);
  background-color: var(--color-primary);
}

.page-home .page-context__sep {
  display: inline-block;
  width: var(--border-thick);
  height: var(--space-2);
  background-color: var(--color-line);
}

/* ---------- 首屏分屏 ---------- */
.page-home .hero {
  display: grid;
  grid-template-columns: 1fr;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: var(--section-y);
}

.page-home .hero__deep {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 460px;
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  overflow: hidden;
}

.page-home .hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.page-home .hero__scrim {
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
  z-index: 1;
}

.page-home .hero__content {
  position: relative;
  z-index: 2;
  padding: var(--space-6) var(--space-3) var(--space-4);
}

.page-home .hero h1 {
  margin: var(--space-2) 0 var(--space-3);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-display);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--color-contrast-ink);
}

.page-home .hero__lede {
  max-width: 52ch;
  margin: 0;
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
  opacity: 0.9;
}

.page-home .figure-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3) var(--space-2);
  margin: var(--space-4) 0 0;
  padding: var(--space-3) 0 0;
  list-style: none;
  border-top: var(--border-thin) solid var(--color-contrast-line);
}

.page-home .figure-row__item {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.page-home .figure-row__value {
  font-family: var(--font-mono);
  font-size: var(--text-3xl);
  font-weight: var(--weight-heading);
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--color-contrast-accent);
}

.page-home .figure-row__label {
  font-size: var(--text-sm);
  line-height: 1.45;
  color: var(--color-contrast-ink);
  opacity: 0.78;
}

/* ---------- 首屏浅色索引栏 ---------- */
.page-home .hero__index {
  background-color: var(--color-surface);
  border-top: var(--border-thin) solid var(--color-line);
  padding: var(--space-4) var(--space-3) var(--space-6);
}

.page-home .index-week {
  border: var(--border-thin) solid var(--color-primary);
  border-radius: var(--radius-sm);
  background-color: var(--color-primary-soft);
  padding: var(--space-2);
  margin-bottom: var(--space-4);
}

.page-home .index-week__k {
  margin: 0 0 var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-primary);
}

.page-home .index-week__v {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.55;
  color: var(--color-ink);
}

.page-home .index-title {
  margin: 0 0 var(--space-3);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-home .line-index {
  display: grid;
  gap: var(--space-1);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .line-index__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  background-color: var(--color-surface);
  color: var(--color-ink);
  text-decoration: none;
  font-size: var(--text-sm);
  line-height: 1.4;
  transition: border-color 180ms linear, background-color 180ms linear;
}

.page-home .line-index__num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

.page-home .line-index__go {
  font-family: var(--font-mono);
  color: var(--color-ink-muted);
  transition: color 180ms linear, transform 180ms linear;
}

.page-home .line-index__link:hover,
.page-home .line-index__link:focus-visible {
  border-color: var(--color-primary);
  background-color: var(--color-primary-soft);
}

.page-home .line-index__link:hover .line-index__go,
.page-home .line-index__link:focus-visible .line-index__go {
  color: var(--color-primary);
  transform: translateX(3px);
}

.page-home .line-index__link--accent:hover,
.page-home .line-index__link--accent:focus-visible {
  border-color: var(--color-accent);
  background-color: var(--color-highlight);
}

.page-home .line-index__link--accent:hover .line-index__go,
.page-home .line-index__link--accent:focus-visible .line-index__go {
  color: var(--color-accent);
}

/* ---------- 区块标题 ---------- */
.page-home .section {
  padding-bottom: var(--section-y);
}

.page-home .section--lg {
  padding-bottom: var(--section-y-lg);
}

.page-home .section-head {
  max-width: var(--measure);
  margin-bottom: var(--space-4);
}

.page-home .section-head--tight {
  margin-bottom: var(--space-3);
}

.page-home .section-head h2 {
  margin: var(--space-2) 0 var(--space-2);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-2xl);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-home .section-head__lede {
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ---------- 六条内容线：不等宽错落栅格 ---------- */
.page-home .line-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

.page-home .line-card {
  display: flex;
  flex-direction: column;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  background-color: var(--color-surface);
  overflow: hidden;
}

.page-home .line-card--alt {
  background-color: var(--color-surface-alt);
}

.page-home .line-card--deep {
  background-color: var(--color-contrast-surface);
  border-color: var(--color-contrast-line);
  color: var(--color-contrast-ink);
}

.page-home .line-card__figure {
  position: relative;
  margin: 0;
  aspect-ratio: 12 / 7;
  overflow: hidden;
  background-color: var(--color-contrast-surface);
}

.page-home .line-card__figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-home .line-card__scrim {
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
}

.page-home .line-card__cap {
  position: absolute;
  left: var(--space-2);
  bottom: var(--space-2);
  z-index: 2;
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-contrast-ink);
}

.page-home .line-card__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-3);
}

.page-home .line-card__body h3 {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-xl);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-home .line-card--deep .line-card__body h3 {
  color: var(--color-contrast-ink);
}

.page-home .line-card__body p {
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-home .line-card--deep .line-card__body p {
  color: var(--color-contrast-ink);
  opacity: 0.85;
}

.page-home .line-card__metric {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  line-height: 1.5;
  color: var(--color-ink-muted);
  border-top: var(--border-thin) solid var(--color-line);
  padding-top: var(--space-2);
}

.page-home .line-card__metric--deep {
  color: var(--color-contrast-ink);
  opacity: 0.75;
  border-top-color: var(--color-contrast-line);
}

.page-home .line-card__num {
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  color: var(--color-primary);
}

.page-home .line-card--deep .line-card__num {
  color: var(--color-contrast-accent);
}

.page-home .line-card__link {
  align-self: flex-start;
  font-size: var(--text-sm);
  line-height: 1.4;
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: var(--border-thin) solid currentColor;
  transition: color 180ms linear, border-color 180ms linear;
}

.page-home .line-card__link:hover,
.page-home .line-card__link:focus-visible {
  color: var(--color-ink);
}

.page-home .line-card__link--deep {
  color: var(--color-contrast-accent);
}

.page-home .line-card__link--deep:hover,
.page-home .line-card__link--deep:focus-visible {
  color: var(--color-contrast-ink);
}

/* ---------- 本周：层叠目录 ---------- */
.page-home .week-stack {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: var(--border-thin) solid var(--color-line);
}

.page-home .week-stack__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  gap: var(--space-2) var(--space-3);
  padding: var(--space-3) 0;
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-home .week-stack__row--lead {
  grid-template-columns: minmax(0, 1fr) auto;
}

.page-home .week-stack__level {
  grid-column: 1 / -1;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-primary);
}

.page-home .week-stack__main h3 {
  margin: 0 0 var(--space-1);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-home .week-stack__main p {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-home .week-stack__row--lead .week-stack__main h3 {
  font-size: var(--text-xl);
}

.page-home .week-stack__row--quiet .week-stack__main h3 {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-ink-soft);
}

.page-home .week-stack__row--quiet .week-stack__main p {
  color: var(--color-ink-muted);
}

.page-home .week-stack__badge {
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  padding: 2px var(--space-1);
}

.page-home .week-stack__row--lead .week-stack__badge {
  color: var(--color-accent-ink);
  background-color: var(--color-accent);
  border-color: var(--color-accent);
}

/* ---------- 技能树路径 ---------- */
.page-home .path-tree {
  margin: 0 0 var(--space-4);
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.page-home .path-tree__step {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-3);
  padding: 0 0 var(--space-4);
}

.page-home .path-tree__step::before {
  content: "";
  position: absolute;
  left: calc(var(--space-3) - 1px);
  top: var(--space-4);
  bottom: 0;
  width: var(--border-thin);
  background-color: var(--color-line);
}

.page-home .path-tree__step:last-child::before {
  display: none;
}

.page-home .path-tree__node {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--space-6);
  height: var(--space-6);
  border: var(--border-thin) solid var(--color-primary);
  border-radius: var(--radius-sm);
  background-color: var(--color-primary-soft);
  color: var(--color-primary);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
}

.page-home .path-tree__body h3 {
  margin: var(--space-1) 0 var(--space-1);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-home .path-tree__body p {
  margin: 0 0 var(--space-2);
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-home .path-tree__link {
  font-size: var(--text-sm);
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: var(--border-thin) solid currentColor;
}

.page-home .path-tree__link:hover,
.page-home .path-tree__link:focus-visible {
  color: var(--color-ink);
}

.page-home .path-out {
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-sm);
  background-color: var(--color-contrast-surface);
  padding: var(--space-3);
}

.page-home .path-out__text {
  margin: 0 0 var(--space-3);
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
}

.page-home .path-out__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-1) var(--space-2);
  margin: 0;
  padding-top: var(--space-2);
  border-top: var(--border-thin) solid var(--color-contrast-line);
}

.page-home .path-out__k {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-contrast-accent);
}

.page-home .path-out__v {
  font-family: var(--font-mono);
  font-size: var(--text-base);
  color: var(--color-contrast-ink);
  margin-right: var(--space-2);
  word-break: break-all;
}

/* ---------- 收尾出口 ---------- */
.page-home .section.closing {
  padding-bottom: 0;
}

.page-home .closing__panel {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  border: var(--border-thin) solid var(--color-line);
  border-left: var(--border-thick) solid var(--color-primary);
  border-radius: var(--radius-sm);
  background-color: var(--color-surface-alt);
  padding: var(--space-4) var(--space-3);
}

.page-home .closing__text h2 {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-xl);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-home .closing__text p {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-home .closing__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 720px) {
  .page-home .hero__content {
    padding: var(--space-8) var(--space-4) var(--space-6);
  }

  .page-home .hero__index {
    padding: var(--space-6) var(--space-4);
  }

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

  .page-home .week-stack__row {
    grid-template-columns: 96px minmax(0, 1fr) auto;
    align-items: center;
    padding: var(--space-4) 0;
  }

  .page-home .week-stack__level {
    grid-column: auto;
  }

  .page-home .closing__panel {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    padding: var(--space-6) var(--space-4);
  }

  .page-home .closing__actions {
    flex-shrink: 0;
  }
}

@media (min-width: 960px) {
  .page-home .hero {
    grid-template-columns: 7fr 5fr;
  }

  .page-home .hero__index {
    border-top: 0;
    border-left: var(--border-thin) solid var(--color-line);
  }

  .page-home .line-grid {
    grid-template-columns: 7fr 5fr;
    gap: var(--space-4) var(--space-3);
    align-items: stretch;
  }
}

@media (min-width: 1200px) {
  .page-home .hero__content {
    padding: var(--space-8) var(--space-6) var(--space-6);
  }

  .page-home .line-card__body {
    padding: var(--space-4);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .line-index__link,
  .page-home .line-index__go,
  .page-home .line-card__link {
    transition: none;
  }

  .page-home .line-index__link:hover .line-index__go,
  .page-home .line-index__link:focus-visible .line-index__go {
    transform: none;
  }
}
</main>