.page-downloads {
  --j-no-w: 68px;
  --j-aside-w: 25ch;
}

/* ---------- 面包屑 ---------- */
.page-downloads .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1) var(--space-2);
  padding-top: var(--space-4);
  padding-bottom: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-downloads .crumbs a {
  color: var(--color-ink-soft);
  text-decoration: none;
  border-bottom: var(--border-thin) solid transparent;
}

.page-downloads .crumbs a:hover {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.page-downloads .crumbs a:focus-visible,
.page-downloads .crumbs .toc__link:focus-visible {
  outline: var(--border-thick) solid var(--color-focus);
  outline-offset: 2px;
}

.page-downloads .crumbs__sep {
  color: var(--color-ink-muted);
  font-size: var(--text-xs);
}

/* ---------- 首屏分屏 ---------- */
.page-downloads .journey-hero {
  background: var(--color-surface);
  padding-bottom: var(--space-8);
}

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

.page-downloads .journey-hero__kicker {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.12em;
  color: var(--color-ink-muted);
}

.page-downloads .journey-hero h1 {
  margin: 0 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: var(--tracking-heading);
  color: var(--color-ink);
  text-wrap: balance;
}

.page-downloads .journey-hero__lede {
  margin: 0 0 var(--space-4);
  max-width: 46ch;
  font-size: var(--text-lg);
  line-height: 1.5;
  color: var(--color-ink-soft);
}

.page-downloads .journey-hero__figures {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3) var(--space-3);
  margin: 0;
  padding-top: var(--space-3);
  border-top: var(--border-thick) solid var(--color-ink);
}

.page-downloads .jh-figure {
  margin: 0;
}

.page-downloads .jh-figure dt {
  margin-bottom: var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

.page-downloads .jh-figure dd {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: var(--text-xl);
  line-height: 1.08;
  color: var(--color-ink);
}

.page-downloads .jh-unit {
  display: inline-block;
  margin-left: 0.35em;
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--color-ink-muted);
}

/* 首屏右侧：图片底层 + 四段直角色块条 */
.page-downloads .journey-hero__visual {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 380px;
  padding: calc(var(--space-8) + var(--space-4)) var(--space-3) var(--space-3);
  background: var(--color-contrast-surface);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-downloads .journey-hero__img {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-downloads .journey-hero__scrim {
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
}

.page-downloads .res-stack {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--space-1);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-downloads .res-stack__item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface);
  color: var(--color-ink);
  border-radius: var(--radius-sm);
}

.page-downloads .res-stack__item:nth-child(2) {
  background: var(--color-primary);
  color: var(--color-primary-ink);
}

.page-downloads .res-stack__item:nth-child(3) {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  outline: var(--border-thin) solid var(--color-contrast-line);
  outline-offset: calc(var(--border-thin) * -1);
}

.page-downloads .res-stack__item:nth-child(4) {
  background: var(--color-surface-alt);
  color: var(--color-ink);
}

.page-downloads .res-stack__name {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-base);
  line-height: 1.2;
}

.page-downloads .res-stack__no {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 700;
  opacity: 0.7;
}

/* ---------- 环节目录 ---------- */
.page-downloads .route-toc {
  background: var(--color-surface);
  border-bottom: var(--border-thick) solid var(--color-ink);
}

.page-downloads .route-toc__list {
  display: flex;
  gap: var(--space-1);
  margin: 0;
  padding-top: var(--space-2);
  padding-bottom: var(--space-2);
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-downloads .route-toc__list::-webkit-scrollbar {
  display: none;
}

.page-downloads .route-toc .toc__link {
  display: inline-block;
  white-space: nowrap;
  padding: var(--space-1) var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  text-decoration: none;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  transition: background-color 0.18s linear, color 0.18s linear;
}

.page-downloads .route-toc .toc__link:hover {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-color: var(--color-contrast-surface);
}

.page-downloads .route-toc .toc__link.is-active {
  background: var(--color-primary);
  color: var(--color-primary-ink);
  border-color: var(--color-primary);
}

/* ---------- 章节头 ---------- */
.page-downloads .stage-head {
  max-width: 64ch;
  margin-bottom: var(--space-6);
}

.page-downloads .stage-head__kicker {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.12em;
  color: inherit;
  opacity: 0.72;
}

.page-downloads .stage-head__title {
  margin: 0 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: inherit;
  text-wrap: balance;
}

.page-downloads .stage-head__lede {
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: inherit;
  opacity: 0.85;
}

/* ---------- 环节色块带 ---------- */
.page-downloads .route-list {
  display: grid;
}

.page-downloads .route-band {
  display: grid;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-3);
  color: inherit;
  transition: background-color 0.18s linear, color 0.18s linear;
}

.page-downloads .route-band + .route-band {
  border-top: var(--border-thick) solid color-mix(in srgb, currentColor 22%, transparent);
}

.page-downloads .route-band:hover,
.page-downloads .route-band:focus-within {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-downloads .journey-hero__visual:focus-within,
.page-downloads .section--deep .route-band:hover,
.page-downloads .section--deep .route-band:focus-within {
  background: var(--color-primary);
  color: var(--color-primary-ink);
}

.page-downloads .section--primary .route-band:hover,
.page-downloads .section--primary .route-band:focus-within {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-downloads .route-band__no {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: var(--text-xl);
  line-height: 1;
  letter-spacing: -0.02em;
  color: inherit;
  opacity: 0.55;
}

.page-downloads .route-band__name {
  margin: 0 0 var(--space-2);
  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: inherit;
}

.page-downloads .route-band__desc {
  margin: 0;
  max-width: 62ch;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: inherit;
  opacity: 0.84;
}

.page-downloads .route-band__link {
  color: inherit;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 0.22em;
  text-decoration-thickness: var(--border-thick);
}

.page-downloads .route-band__link:hover {
  color: var(--color-accent);
}

.page-downloads .route-band__aside {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.page-downloads .route-band__out {
  align-self: flex-start;
  margin: 0;
  padding: var(--space-1) var(--space-2);
  background: var(--color-accent);
  color: var(--color-accent-ink);
  font-size: var(--text-sm);
  line-height: 1.4;
  border-radius: var(--radius-sm);
}

.page-downloads .route-band__meta {
  margin: 0;
  font-size: var(--text-sm);
  color: inherit;
}

.page-downloads .route-band__meta > div {
  margin-bottom: var(--space-2);
}

.page-downloads .route-band__meta dt {
  margin-bottom: calc(var(--space-1) / 2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  opacity: 0.62;
}

.page-downloads .route-band__meta dd {
  margin: 0;
  line-height: 1.5;
  opacity: 0.9;
}

/* ---------- 内文图片 ---------- */
.page-downloads .inline-figure {
  margin: var(--space-6) 0 0;
}

.page-downloads .inline-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
}

.page-downloads .inline-figure figcaption {
  margin-top: var(--space-2);
  max-width: 62ch;
  font-size: var(--text-sm);
  line-height: 1.6;
  color: inherit;
  opacity: 0.72;
}

/* ---------- 对照表 ---------- */
.page-downloads .compare-wrap {
  background: var(--color-surface);
  color: var(--color-ink);
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  overflow-x: auto;
}

.page-downloads .compare-table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

.page-downloads .compare-table th {
  padding: var(--space-2);
  background: var(--color-surface-deep);
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-align: left;
  white-space: nowrap;
}

.page-downloads .compare-table td {
  padding: var(--space-2);
  color: var(--color-ink-soft);
  line-height: 1.5;
  vertical-align: top;
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-downloads .compare-table tbody tr:nth-child(even) {
  background: var(--color-surface-alt);
}

.page-downloads .compare-table td:nth-child(4),
.page-downloads .compare-table th:nth-child(4) {
  background: var(--color-primary-soft);
  color: var(--color-ink);
}

.page-downloads .compare-table tbody tr:hover td {
  background: var(--color-highlight);
  color: var(--color-ink);
}

/* ---------- 行动出口 ---------- */
.page-downloads .exit-block {
  display: grid;
  gap: var(--space-3);
  padding: var(--space-6) var(--space-4);
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-radius: var(--radius-sm);
}

.page-downloads .exit-block__title {
  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: inherit;
}

.page-downloads .exit-block__text {
  margin: 0;
  max-width: 62ch;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: inherit;
  opacity: 0.86;
}

.page-downloads .exit-block__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* ---------- 焦点可见 ---------- */
.page-downloads a:focus-visible,
.page-downloads .route-band:focus-visible {
  outline: var(--border-thick) solid var(--color-focus);
  outline-offset: 2px;
}

/* ---------- 窄屏适配 ---------- */
@media (max-width: 599px) {
  .page-downloads .jh-figure dd {
    font-size: var(--text-lg);
  }

  .page-downloads .route-band {
    padding: var(--space-3) var(--space-2);
  }

  .page-downloads .exit-block {
    padding: var(--space-4) var(--space-3);
  }
}

/* ---------- 平板以上：非对称栏宽 ---------- */
@media (min-width: 900px) {
  .page-downloads .journey-hero {
    padding-bottom: var(--section-y-lg);
  }

  .page-downloads .journey-hero__grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    align-items: end;
    gap: var(--space-8);
  }

  .page-downloads .journey-hero__figures {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--space-3) var(--space-4);
  }

  .page-downloads .journey-hero__visual {
    min-height: 440px;
  }

  .page-downloads .route-toc {
    position: sticky;
    top: 0;
    z-index: 6;
  }

  .page-downloads .route-band {
    grid-template-columns: var(--j-no-w) minmax(0, 1fr) minmax(0, var(--j-aside-w));
    gap: var(--space-4);
    align-items: start;
    padding: var(--space-4) var(--space-3);
  }

  .page-downloads .route-band__no {
    font-size: var(--text-2xl);
    padding-top: calc(var(--space-1) / 2);
  }

  .page-downloads .route-band__out {
    max-height: 0;
    padding-top: 0;
    padding-bottom: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.18s linear, opacity 0.18s linear,
      padding-top 0.18s linear, padding-bottom 0.18s linear;
  }

  .page-downloads .route-band:hover .route-band__out,
  .page-downloads .route-band:focus-within .route-band__out {
    max-height: 220px;
    padding-top: var(--space-1);
    padding-bottom: var(--space-1);
    opacity: 1;
  }

  .page-downloads .inline-figure {
    margin-top: var(--section-y);
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-downloads .route-band,
  .page-downloads .route-band__out,
  .page-downloads .route-toc .toc__link {
    transition: none;
  }

  .page-downloads .route-band__out {
    max-height: none;
    opacity: 1;
    padding-top: var(--space-1);
    padding-bottom: var(--space-1);
  }
}
<<<END>>>