/* ============================================================
   page-home · 首页
   双色海报体系：主色 #2479b8 与强调色 #a06c18 交替铺底，
   相邻章节底色互换，边界靠色差与 1px 细实线，无阴影。
   ============================================================ */

/* ---------- 1. 首屏 ---------- */
.page-home .home-hero {
  padding-block: var(--space-8) var(--section-y);
  background: var(--color-surface);
  overflow: hidden;
}

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

.page-home .home-hero__eyebrow {
  color: var(--color-accent);
  margin: 0;
}

.page-home .home-hero__title {
  margin: 0 0 var(--space-4);
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: 1.02;
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  text-wrap: balance;
}

.page-home .home-hero__title-mark {
  display: block;
  color: var(--color-primary);
}

.page-home .home-hero__lede {
  max-width: var(--measure);
  margin: 0 0 var(--space-4);
  color: var(--color-ink-soft);
  font-size: var(--text-lg);
  line-height: var(--leading-body);
}

.page-home .home-hero__jump {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: 0;
}

.page-home .home-hero__stage {
  display: grid;
  gap: 0;
  margin-top: var(--space-4);
}

.page-home .home-hero__figure {
  position: relative;
  margin: 0;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--color-contrast-surface);
}

.page-home .home-hero__figure .figure__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-home .home-hero__stats {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--space-2);
  margin-top: calc(var(--space-6) * -1);
  padding-inline: var(--space-2);
}

.page-home .home-hero__stat {
  padding: var(--space-4);
  border-radius: var(--radius-sm);
  transition: background-color 140ms linear, color 140ms linear;
}

.page-home .home-hero__stat--a {
  width: 92%;
  margin-left: auto;
  background: var(--color-primary);
  color: var(--color-primary-ink);
}

.page-home .home-hero__stat--b {
  width: 86%;
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-home .home-hero__stat--c {
  width: 90%;
  margin-left: auto;
  background: var(--color-primary-soft);
  color: var(--color-ink);
}

.page-home .home-hero__stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 1;
  letter-spacing: var(--tracking-heading);
  font-variant-numeric: tabular-nums;
}

.page-home .home-hero__stat-label {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--text-sm);
  letter-spacing: 0.12em;
  opacity: 0.85;
}

.page-home .home-hero__stat-note {
  margin: var(--space-2) 0 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  opacity: 0.82;
}

/* ---------- 2. 导航结构总览 ---------- */
.page-home .home-nav {
  padding-block: var(--section-y);
  background: var(--color-primary);
  color: var(--color-primary-ink);
}

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

.page-home .home-nav__eyebrow {
  margin: 0 0 var(--space-2);
  color: var(--color-primary-ink);
  opacity: 0.78;
}

.page-home .home-nav__title {
  margin: 0 0 var(--space-3);
  color: var(--color-primary-ink);
}

.page-home .home-nav__body {
  max-width: var(--measure);
  margin: 0 0 var(--space-3);
  color: var(--color-primary-ink);
  opacity: 0.92;
  font-size: var(--text-base);
  line-height: var(--leading-body);
}

.page-home .home-nav__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-primary-ink);
  opacity: 0.72;
}

.page-home .home-nav__figure {
  margin: 0;
  aspect-ratio: 1200 / 640;
  overflow: hidden;
  background: var(--color-contrast-surface);
}

.page-home .home-nav__figure .figure__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-home .home-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--border-thin) solid color-mix(in srgb, var(--color-primary-ink) 32%, transparent);
}

.page-home .home-nav__item {
  border-bottom: var(--border-thin) solid color-mix(in srgb, var(--color-primary-ink) 32%, transparent);
}

.page-home .home-nav__link {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-1) var(--space-3);
  padding: var(--space-3) var(--space-2);
  color: var(--color-primary-ink);
  text-decoration: none;
  transition: background-color 140ms linear, color 140ms linear;
}

.page-home .home-nav__index {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-variant-numeric: tabular-nums;
  opacity: 0.78;
}

.page-home .home-nav__text {
  flex: 1 1 auto;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
}

.page-home .home-nav__hint {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  opacity: 0.7;
  transition: opacity 140ms linear;
}

@media (hover: hover) {
  .page-home .home-nav__link:hover {
    background: var(--color-primary-ink);
    color: var(--color-primary);
  }
  .page-home .home-nav__link:hover .home-nav__hint {
    opacity: 1;
  }
  .page-home .home-hero__stat--a:hover {
    background: var(--color-primary-ink);
    color: var(--color-primary);
  }
  .page-home .home-hero__stat--b:hover {
    background: var(--color-contrast-ink);
    color: var(--color-contrast-surface);
  }
  .page-home .home-hero__stat--c:hover {
    background: var(--color-primary);
    color: var(--color-primary-ink);
  }
}

.page-home .home-nav__link:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: -2px;
}

/* ---------- 3. 三条主动线 ---------- */
.page-home .home-paths {
  padding-block: var(--section-y);
  background: var(--color-surface);
}

.page-home .home-paths__head {
  max-width: var(--measure);
  margin-bottom: var(--space-8);
}

.page-home .home-paths__title {
  margin: var(--space-2) 0 0;
  color: var(--color-ink);
}

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

.page-home .home-paths__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-3);
  padding: var(--space-4) var(--space-2);
  border-bottom: var(--border-thin) solid var(--color-line);
  transition: background-color 140ms linear, color 140ms linear;
}

.page-home .home-paths__num {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-variant-numeric: tabular-nums;
  color: var(--color-accent);
}

.page-home .home-paths__name {
  margin: 0 0 var(--space-2);
  color: inherit;
}

.page-home .home-paths__answer {
  margin: 0 0 var(--space-3);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-home .home-paths__link {
  display: block;
  margin-bottom: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-home .home-paths__cta {
  display: inline-block;
  padding-block: var(--space-1);
  border-bottom: var(--border-thin) solid var(--color-accent);
  color: var(--color-accent);
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  text-decoration: none;
  transition: color 140ms linear, border-color 140ms linear;
}

@media (hover: hover) {
  .page-home .home-paths__item:hover {
    background: var(--color-primary);
    color: var(--color-primary-ink);
  }
  .page-home .home-paths__item:hover .home-paths__answer,
  .page-home .home-paths__item:hover .home-paths__link,
  .page-home .home-paths__item:hover .home-paths__num {
    color: var(--color-primary-ink);
    opacity: 0.9;
  }
  .page-home .home-paths__item:hover .home-paths__cta {
    color: var(--color-primary-ink);
    border-color: var(--color-primary-ink);
  }
}

.page-home .home-paths__item:focus-within {
  background: var(--color-primary);
  color: var(--color-primary-ink);
}

.page-home .home-paths__item:focus-within .home-paths__answer,
.page-home .home-paths__item:focus-within .home-paths__link,
.page-home .home-paths__item:focus-within .home-paths__num,
.page-home .home-paths__item:focus-within .home-paths__cta {
  color: var(--color-primary-ink);
}

.page-home .home-paths__cta:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

/* ---------- 4. 栏目入口错落区 ---------- */
.page-home .home-columns {
  padding-block: var(--section-y);
  background: var(--color-surface-alt);
}

.page-home .home-columns__head {
  max-width: var(--measure);
  margin-bottom: var(--space-6);
}

.page-home .home-columns__title {
  margin: var(--space-2) 0 0;
  color: var(--color-ink);
}

.page-home .home-columns__grid {
  display: grid;
  gap: var(--space-2);
}

.page-home .home-col {
  display: grid;
  align-content: start;
  gap: var(--space-2);
  padding: var(--space-6) var(--space-4);
  background: var(--color-surface);
  color: var(--color-ink);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: background-color 140ms linear, color 140ms linear;
}

.page-home .home-col__tag {
  justify-self: start;
}

.page-home .home-col__name {
  margin: 0;
  color: inherit;
}

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

.page-home .home-col__go {
  margin-top: var(--space-2);
  padding-top: var(--space-2);
  border-top: var(--border-thin) solid var(--color-line);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-accent);
}

@media (hover: hover) {
  .page-home .home-col:hover {
    background: var(--color-primary);
    color: var(--color-primary-ink);
  }
  .page-home .home-col:hover .home-col__desc {
    color: var(--color-primary-ink);
    opacity: 0.9;
  }
  .page-home .home-col:hover .home-col__go {
    color: var(--color-primary-ink);
    border-color: color-mix(in srgb, var(--color-primary-ink) 45%, transparent);
  }
}

.page-home .home-col:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

/* ---------- 5. 深色说明带 ---------- */
.page-home .home-load {
  padding-block: var(--section-y);
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

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

.page-home .home-load__eyebrow {
  margin: 0 0 var(--space-2);
  color: var(--color-contrast-accent);
}

.page-home .home-load__title {
  margin: 0 0 var(--space-3);
  color: var(--color-contrast-ink);
}

.page-home .home-load__text {
  max-width: var(--measure);
  margin: 0 0 var(--space-3);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
  opacity: 0.86;
}

.page-home .home-load__steps {
  list-style: none;
  counter-reset: load-step;
  margin: 0;
  padding: 0;
  border-top: var(--border-thin) solid var(--color-contrast-line);
}

.page-home .home-load__steps li {
  counter-increment: load-step;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-3);
  padding-block: var(--space-3);
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
}

.page-home .home-load__steps li::before {
  content: counter(load-step, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-variant-numeric: tabular-nums;
  color: var(--color-contrast-accent);
}

/* ---------- 6. 视觉过渡带 ---------- */
.page-home .home-breath {
  background: var(--color-contrast-surface);
  border-top: var(--border-thin) solid var(--color-contrast-line);
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
}

.page-home .home-breath__img {
  display: block;
  width: 100%;
  height: clamp(calc(var(--space-8) * 2), 22vw, calc(var(--space-8) * 4));
  object-fit: cover;
  object-position: center;
  opacity: 0.9;
}

/* ---------- 7. 信任与备案收束 ---------- */
.page-home .home-trust {
  padding-block: var(--section-y);
  background: var(--color-surface);
}

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

.page-home .home-trust__eyebrow {
  margin: 0 0 var(--space-2);
  color: var(--color-accent);
}

.page-home .home-trust__title {
  margin: 0 0 var(--space-3);
  color: var(--color-ink);
}

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

.page-home .home-trust__facts {
  display: grid;
  margin: var(--space-4) 0 0;
  padding: 0;
  border-top: var(--border-thin) solid var(--color-line);
}

.page-home .home-trust__fact {
  display: grid;
  grid-template-columns: minmax(0, 9ch) minmax(0, 1fr);
  gap: var(--space-3);
  padding-block: var(--space-3);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-home .home-trust__fact dt {
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-home .home-trust__fact dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-base);
  color: var(--color-ink);
  overflow-wrap: anywhere;
}

.page-home .home-trust__more {
  margin: var(--space-4) 0 0;
}

.page-home .home-trust__figure {
  margin: 0;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: var(--color-highlight);
}

.page-home .home-trust__figure .figure__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 桌面栅格 ---------- */
@media (min-width: 900px) {

  .page-home .home-hero__grid {
    grid-template-columns: repeat(10, minmax(0, 1fr));
    gap: var(--space-3) var(--gutter);
    align-items: start;
  }

  .page-home .home-hero__eyebrow,
  .page-home .home-hero__title {
    grid-column: 1 / -1;
  }

  .page-home .home-hero__lead {
    grid-column: 1 / 6;
    align-self: end;
  }

  .page-home .home-hero__stage {
    grid-column: 6 / 11;
    margin-top: 0;
  }

  .page-home .home-nav__grid {
    grid-template-columns: repeat(10, minmax(0, 1fr));
    gap: var(--space-8) var(--gutter);
    align-items: start;
  }

  .page-home .home-nav__lead {
    grid-column: 1 / 7;
  }

  .page-home .home-nav__figure {
    grid-column: 7 / 11;
  }

  .page-home .home-nav__list {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: var(--gutter);
  }

  .page-home .home-nav__item:nth-child(1),
  .page-home .home-nav__item:nth-child(2) {
    border-top: 0;
  }

  .page-home .home-paths__item {
    grid-template-columns: 5ch minmax(0, 1fr);
    gap: var(--space-6);
    padding-block: var(--space-6);
  }

  .page-home .home-paths__body {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 20ch);
    column-gap: var(--space-6);
    align-items: end;
  }

  .page-home .home-paths__name,
  .page-home .home-paths__answer {
    grid-column: 1;
  }

  .page-home .home-paths__link,
  .page-home .home-paths__cta {
    grid-column: 2;
    justify-self: start;
  }

  .page-home .home-paths__link {
    align-self: end;
    margin-bottom: var(--space-1);
  }

  .page-home .home-columns__grid {
    grid-template-columns: repeat(10, minmax(0, 1fr));
    grid-auto-rows: minmax(calc(var(--space-8) * 1.6), auto);
    gap: var(--space-2);
  }

  .page-home .home-col--a {
    grid-column: 1 / 7;
    grid-row: 1 / 3;
    align-content: end;
  }

  .page-home .home-col--b {
    grid-column: 7 / 11;
    grid-row: 1;
  }

  .page-home .home-col--c {
    grid-column: 7 / 11;
    grid-row: 2;
  }

  .page-home .home-col--d {
    grid-column: 1 / 11;
    grid-row: 3;
    align-content: end;
  }

  .page-home .home-load__grid {
    grid-template-columns: repeat(10, minmax(0, 1fr));
    gap: var(--gutter);
    align-items: start;
  }

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

  .page-home .home-load__steps {
    grid-column: 6 / 11;
  }

  .page-home .home-trust__grid {
    grid-template-columns: repeat(10, minmax(0, 1fr));
    gap: var(--gutter);
    align-items: start;
  }

  .page-home .home-trust__body {
    grid-column: 1 / 7;
  }

  .page-home .home-trust__figure {
    grid-column: 8 / 11;
    margin-top: var(--space-6);
  }
}

@media (min-width: 1280px) {

  .page-home .home-hero__stats {
    padding-inline: var(--space-4);
  }

  .page-home .home-hero__stat--a {
    width: 88%;
  }

  .page-home .home-hero__stat--b {
    width: 82%;
  }

  .page-home .home-hero__stat--c {
    width: 86%;
  }
}
<<<END>>>