/* ================= 首页 page-home ================= */

.page-home img {
  max-width: 100%;
  height: auto;
}

/* ---------- 首屏：对角切分 ---------- */

.page-home .home-hero {
  padding-block: var(--space-3) var(--space-8);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-home .home-hero .breadcrumbs {
  margin-bottom: var(--space-4);
}

.page-home .home-hero__grid {
  display: grid;
  gap: var(--space-6);
}

.page-home .home-hero__title {
  font-size: var(--text-display);
  line-height: 0.92;
  letter-spacing: var(--tracking-heading);
  margin: var(--space-3) 0 var(--space-4);
}

.page-home .home-hero__lede {
  max-width: var(--measure);
  color: var(--color-ink-soft);
  margin-bottom: var(--space-4);
}

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

.page-home .home-hero__media {
  position: relative;
  display: grid;
  align-content: end;
  min-height: 340px;
  background-color: var(--color-contrast-surface);
  overflow: hidden;
}

.page-home .home-hero__media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 60% 40%;
}

.page-home .home-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
  pointer-events: none;
}

.page-home .home-hero__stats {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
  margin: 0;
  padding: var(--space-4) var(--space-3) var(--space-3);
  list-style: none;
  border-top: var(--border-thick) solid var(--color-primary);
}

.page-home .home-hero__stats .stat__value {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-3xl);
  font-weight: var(--weight-heading);
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--color-contrast-ink);
  border-bottom: 2px solid var(--color-primary);
  padding-bottom: var(--space-1);
  transition: font-weight 120ms linear;
}

.page-home .home-hero__stats .stat__value:hover {
  font-weight: var(--weight-body);
}

.page-home .home-hero__stats .stat__label {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--text-sm);
  letter-spacing: 0.04em;
  color: var(--color-contrast-ink);
}

/* ---------- 登录后的第一屏 ---------- */

.page-home .home-login {
  scroll-margin-top: 96px;
}

.page-home .home-login__grid {
  display: grid;
  gap: var(--space-6);
}

.page-home .home-login__figure {
  margin: 0;
}

.page-home .home-login__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  background-color: var(--color-surface-deep);
}

.page-home .home-login__paths {
  display: grid;
  gap: var(--space-4);
}

.page-home .path-item {
  border-top: var(--border-thin) solid var(--color-line);
  padding-top: var(--space-3);
}

.page-home .path-item__no {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  color: var(--color-primary);
}

.page-home .path-item__title {
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  margin: var(--space-1) 0 var(--space-2);
}

.page-home .path-item__desc {
  color: var(--color-ink-soft);
  margin-bottom: var(--space-2);
}

.page-home .path-item__link {
  display: inline-block;
  font-size: var(--text-sm);
  color: var(--color-ink);
  text-decoration: none;
  border-bottom: var(--border-thin) solid var(--color-primary);
  padding-bottom: 2px;
  transition: color 120ms linear, border-color 120ms linear;
}

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

/* ---------- 左对比栏 / 右流式区 ---------- */

.page-home .home-split__grid {
  display: grid;
  gap: var(--space-6);
}

.page-home .home-split__rail {
  background-color: var(--color-surface-deep);
  border-left: var(--border-thick) solid var(--color-primary);
  padding: var(--space-4) var(--space-3);
}

.page-home .home-split__rail-title {
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  margin-bottom: var(--space-1);
}

.page-home .home-split__rail-note {
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  margin-bottom: var(--space-3);
}

.page-home .phase-list {
  list-style: none;
  margin: 0 0 var(--space-3);
  padding: 0;
}

.page-home .phase-list__item {
  display: grid;
  gap: var(--space-1);
  padding: var(--space-2) 0;
  border-top: var(--border-thin) solid var(--color-line);
}

.page-home .phase-list__name {
  font-family: var(--font-mono);
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
}

.page-home .phase-list__desc {
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.page-home .home-split__rail-foot {
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  border-top: var(--border-thin) solid var(--color-line);
  padding-top: var(--space-2);
}

.page-home .home-split__flow {
  display: grid;
  gap: var(--space-4);
}

.page-home .home-split__flow .figure {
  position: relative;
}

.page-home .home-split__flow .figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background-color: var(--color-surface-deep);
}

.page-home .home-split__flow .figure__body {
  position: absolute;
  left: var(--space-3);
  bottom: var(--space-4);
  z-index: 2;
}

.page-home .flow-figure__num {
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  letter-spacing: 0.02em;
  line-height: 1;
  color: var(--color-contrast-ink);
  margin: 0;
}

.page-home .flow-figure__unit {
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  color: var(--color-contrast-ink);
  margin: var(--space-1) 0 0;
}

.page-home .flow-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-3);
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-home .flow-stats__item {
  border-top: var(--border-thick) solid var(--color-primary);
  padding-top: var(--space-2);
}

.page-home .flow-stats .stat__value {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: 1.1;
  color: var(--color-ink);
}

.page-home .flow-stats .stat__label {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.page-home .home-split__flowtext {
  color: var(--color-ink-soft);
  max-width: var(--measure);
}

/* ---------- 最近十轮 ---------- */

.page-home .home-rounds__filter {
  margin-bottom: var(--space-6);
}

.page-home .round-track {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: var(--space-2);
  list-style: none;
  margin: 0 0 var(--space-6);
  padding: 0;
}

.page-home .round-track__item {
  display: grid;
  gap: var(--space-2);
  min-height: 88px;
  align-content: start;
  border-top: var(--border-thin) solid var(--color-line);
  padding-top: var(--space-2);
}

.page-home .round-track__no {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.06em;
  color: var(--color-ink-muted);
}

.page-home .round-track__mark {
  display: block;
  width: 100%;
  height: 8px;
  background-color: var(--color-primary-soft);
}

.page-home .round-track__item:nth-child(2) .round-track__mark,
.page-home .round-track__item:nth-child(5) .round-track__mark,
.page-home .round-track__item:nth-child(8) .round-track__mark {
  background-color: var(--color-accent);
}

.page-home .round-track__item:nth-child(2) .round-track__no,
.page-home .round-track__item:nth-child(5) .round-track__no,
.page-home .round-track__item:nth-child(8) .round-track__no {
  color: var(--color-ink);
}

.page-home .home-rounds__notes {
  display: grid;
  gap: var(--space-4);
  border-top: var(--border-thin) solid var(--color-line);
  padding-top: var(--space-4);
}

.page-home .round-note__title {
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  margin-bottom: var(--space-1);
}

.page-home .round-note__desc {
  color: var(--color-ink-soft);
  font-size: var(--text-base);
}

/* ---------- 跨端 ---------- */

.page-home .home-crossdev__grid {
  display: grid;
  gap: var(--space-6);
}

.page-home .home-crossdev__points {
  display: grid;
  gap: var(--space-4);
}

.page-home .crossdev-point {
  border-top: var(--border-thin) solid var(--color-line);
  padding-top: var(--space-3);
}

.page-home .crossdev-point__title {
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  margin-bottom: var(--space-1);
}

.page-home .crossdev-point__desc {
  color: var(--color-ink-soft);
}

.page-home .home-crossdev__figure {
  margin: 0;
}

.page-home .home-crossdev__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background-color: var(--color-surface-deep);
}

/* ---------- 栏目索引 ---------- */

.page-home .home-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--border-thin) solid var(--color-line);
}

.page-home .index-bar {
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-home .index-bar__link {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: var(--space-3);
  row-gap: var(--space-1);
  align-items: baseline;
  padding: var(--space-3) var(--space-2);
  color: var(--color-ink);
  text-decoration: none;
  transition: background-color 120ms linear, color 120ms linear;
}

.page-home .index-bar__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 2px;
  width: 0;
  background-color: var(--color-primary);
  transition: width 120ms linear;
}

.page-home .index-bar__link:hover,
.page-home .index-bar__link:focus-visible {
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-home .index-bar__link:hover::after,
.page-home .index-bar__link:focus-visible::after {
  width: 100%;
}

.page-home .index-bar__no {
  grid-row: 1 / 3;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  color: var(--color-primary);
}

.page-home .index-bar__name {
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
}

.page-home .index-bar__desc {
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.page-home .index-bar__link:hover .index-bar__desc,
.page-home .index-bar__link:focus-visible .index-bar__desc {
  color: var(--color-contrast-ink);
}

/* ---------- 行动出口 ---------- */

.page-home .home-outro__inner {
  background-color: var(--color-surface-deep);
  border-top: var(--border-thick) solid var(--color-primary);
  padding: var(--space-6) var(--space-3);
}

.page-home .home-outro__title {
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  line-height: var(--leading-heading);
  margin-bottom: var(--space-3);
}

.page-home .home-outro__text {
  max-width: var(--measure);
  color: var(--color-ink-soft);
  margin-bottom: var(--space-4);
}

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

/* ---------- 断点 ---------- */

@media (min-width: 720px) {
  .page-home .round-track {
    grid-template-columns: repeat(10, minmax(0, 1fr));
  }

  .page-home .home-rounds__notes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--gutter);
  }

  .page-home .home-outro__inner {
    padding: var(--space-8) var(--space-6);
  }
}

@media (min-width: 960px) {
  .page-home .home-hero {
    padding-block: var(--space-4) var(--space-8);
  }

  .page-home .home-hero__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: var(--gutter);
    align-items: start;
  }

  .page-home .home-hero__lead {
    grid-column: 1 / 8;
    padding-top: var(--space-8);
  }

  .page-home .home-hero__media {
    grid-column: 8 / 13;
    min-height: 560px;
  }

  .page-home .home-login__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: var(--gutter);
    align-items: start;
  }

  .page-home .home-login__figure {
    grid-column: 1 / 5;
  }

  .page-home .home-login__paths {
    grid-column: 6 / 13;
    gap: var(--space-6);
  }

  .page-home .home-split__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: var(--gutter);
    align-items: start;
  }

  .page-home .home-split__rail {
    grid-column: 1 / 5;
    position: sticky;
    top: 104px;
  }

  .page-home .home-split__flow {
    grid-column: 6 / 13;
  }

  .page-home .flow-figure__num {
    font-size: var(--text-3xl);
  }

  .page-home .home-crossdev__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: var(--gutter);
    align-items: center;
  }

  .page-home .home-crossdev__points {
    grid-column: 1 / 6;
  }

  .page-home .home-crossdev__figure {
    grid-column: 6 / 13;
  }

  .page-home .home-index__list {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: var(--gutter);
    border-top: 0;
  }

  .page-home .index-bar {
    border-top: var(--border-thin) solid var(--color-line);
  }

  .page-home .index-bar:nth-child(odd) {
    grid-column: 1 / 8;
  }

  .page-home .index-bar:nth-child(even) {
    grid-column: 8 / 13;
  }
}

@media (min-width: 1280px) {
  .page-home .home-hero__lead {
    padding-top: var(--space-8);
  }

  .page-home .home-hero__media {
    min-height: 620px;
  }
}