.page-custom {
  --cst-band: 68px;
  --cst-fig-gap: var(--space-6);
}

/* ---- 面包屑上方留白 ---- */
.page-custom .breadcrumbs {
  margin-top: var(--space-4);
}

/* ---- 首屏 ---- */
.page-custom .cst-hero {
  padding-top: var(--space-4);
}

.page-custom .cst-hero__title {
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-primary);
  margin: var(--space-3) 0 var(--space-6);
}

.page-custom .cst-hero__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

.page-custom .cst-hero__lede p {
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  color: var(--color-ink);
  margin: 0;
}

.page-custom .cst-hero__figure {
  margin: 0;
}

.page-custom .cst-hero__figure .media-frame__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

@media (min-width: 900px) {
  .page-custom .cst-hero__body {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: end;
    gap: var(--cst-fig-gap);
  }
}

/* ---- 刻度线数字条 ---- */
.page-custom .cst-scale {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4) var(--space-3);
  margin-top: var(--space-6);
}

@media (min-width: 700px) {
  .page-custom .cst-scale {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-custom .cst-scale__item {
  position: relative;
  padding-top: var(--space-3);
  border-top: var(--border-thin) dotted var(--color-line);
}

.page-custom .cst-scale__item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: var(--space-4);
  height: 2px;
  background: var(--color-primary);
}

.page-custom .cst-scale__num {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 1;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  color: var(--color-primary);
}

.page-custom .cst-scale__label {
  display: block;
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  line-height: 1.45;
  color: var(--color-ink-soft);
}

/* ---- 四类方向 ---- */
.page-custom .cst-dirs .section-head {
  margin-bottom: var(--space-6);
}

.page-custom .cst-dir {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  padding: var(--space-6) 0;
  border-top: var(--border-thin) dotted var(--color-line);
}

.page-custom .cst-dir:first-of-type {
  border-top: 3px solid var(--color-primary);
}

.page-custom .cst-dir__band {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.page-custom .cst-dir__code {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.16em;
  color: var(--color-primary);
  padding-left: var(--space-2);
  border-left: 3px solid var(--color-primary);
}

.page-custom .cst-dir__main {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

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

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

.page-custom .cst-dir__fields {
  display: grid;
  gap: var(--space-2);
  margin: 0;
}

.page-custom .cst-dir__field {
  display: grid;
  gap: var(--space-1);
  padding-top: var(--space-2);
  border-top: var(--border-thin) dotted var(--color-line);
}

.page-custom .cst-dir__key {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-ink-muted);
}

.page-custom .cst-dir__val {
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

@media (min-width: 640px) {
  .page-custom .cst-dir__field {
    grid-template-columns: 84px minmax(0, 1fr);
    gap: var(--space-3);
    align-items: baseline;
  }
}

.page-custom .cst-dir__figure {
  margin: 0;
}

.page-custom .cst-dir__figure .media-frame__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-custom .cst-dir__figure--dark {
  background: var(--color-contrast-surface);
  padding: var(--space-2);
}

.page-custom .cst-dir__note {
  padding: var(--space-3);
  background: var(--color-primary-soft);
  border-left: 3px solid var(--color-accent);
}

.page-custom .cst-dir__note p {
  margin: 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-custom .cst-dir__note-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  color: var(--color-accent);
  margin-bottom: var(--space-1) !important;
}

@media (min-width: 900px) {
  .page-custom .cst-dir {
    grid-template-columns: var(--cst-band) minmax(0, 1fr);
    gap: var(--space-6);
    padding: var(--space-8) 0;
  }

  .page-custom .cst-dir__band {
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: var(--space-3);
  }

  .page-custom .cst-dir__code {
    padding-left: var(--space-2);
  }

  .page-custom .cst-dir__band::after {
    content: "";
    width: var(--border-thick);
    height: calc(var(--space-8) - var(--space-1));
    background: var(--color-line);
  }

  .page-custom .cst-dir__main {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: var(--gutter);
    row-gap: var(--space-4);
  }

  .page-custom .cst-dir--a .cst-dir__head { grid-column: 1 / span 7; grid-row: 1; }
  .page-custom .cst-dir--a .cst-dir__fields { grid-column: 1 / span 7; grid-row: 2; }
  .page-custom .cst-dir--a .cst-dir__figure { grid-column: 9 / span 4; grid-row: 1 / span 2; }

  .page-custom .cst-dir--b .cst-dir__head { grid-column: 1 / span 7; grid-row: 1; }
  .page-custom .cst-dir--b .cst-dir__fields { grid-column: 1 / span 7; grid-row: 2; }
  .page-custom .cst-dir--b .cst-dir__note { grid-column: 9 / span 4; grid-row: 1 / span 2; align-self: start; }

  .page-custom .cst-dir--c .cst-dir__head { grid-column: 1 / span 5; grid-row: 1; }
  .page-custom .cst-dir--c .cst-dir__fields { grid-column: 1 / span 5; grid-row: 2; }
  .page-custom .cst-dir--c .cst-dir__figure { grid-column: 6 / span 7; grid-row: 1 / span 2; align-self: start; }

  .page-custom .cst-dir--d .cst-dir__head { grid-column: 1 / span 8; grid-row: 1; }
  .page-custom .cst-dir--d .cst-dir__fields { grid-column: 1 / span 8; grid-row: 2; }
  .page-custom .cst-dir--d .cst-dir__figure { grid-column: 9 / span 4; grid-row: 1 / span 2; }
}

/* ---- 模块拼贴 ---- */
.page-custom .cst-mods-section .section-head {
  margin-bottom: var(--space-6);
}

.page-custom .cst-inline-link {
  color: var(--color-primary);
  font-weight: 600;
  text-decoration: none;
  border-bottom: var(--border-thin) dotted var(--color-primary);
  padding-bottom: 1px;
}

.page-custom .cst-inline-link:hover,
.page-custom .cst-inline-link:focus-visible {
  border-bottom-style: solid;
  color: var(--color-focus);
  border-bottom-color: var(--color-focus);
}

.page-custom .cst-mods {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
}

@media (min-width: 560px) {
  .page-custom .cst-mods {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-custom .cst-mods {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1180px) {
  .page-custom .cst-mods {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-custom .cst-mod {
  position: relative;
}

.page-custom .cst-mod__input {
  position: absolute;
  inset-block-start: 0;
  inset-inline-start: 0;
  inline-size: var(--border-thin);
  block-size: var(--border-thin);
  opacity: 0;
  pointer-events: none;
}

.page-custom .cst-mod__label {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  height: 100%;
  padding: var(--space-3) var(--space-2);
  background: var(--color-surface);
  border: var(--border-thin) dotted var(--color-line);
  cursor: pointer;
  transition: background-color 240ms ease, border-color 240ms ease, color 240ms ease;
}

.page-custom .cst-mod__label:hover {
  border-style: solid;
  border-color: var(--color-primary);
}

.page-custom .cst-mod__input:checked + .cst-mod__label {
  background: var(--color-primary);
  border-style: solid;
  border-color: var(--color-primary);
  color: var(--color-primary-ink);
}

.page-custom .cst-mod__input:focus-visible + .cst-mod__label {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.page-custom .cst-mod__code {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  color: var(--color-ink-muted);
}

.page-custom .cst-mod__input:checked + .cst-mod__label .cst-mod__code {
  color: var(--color-primary-ink);
  opacity: 0.72;
}

.page-custom .cst-mod__name {
  font-size: var(--text-base);
  font-weight: 600;
  line-height: 1.35;
  color: inherit;
}

.page-custom .cst-mod__for {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-soft);
}

.page-custom .cst-mod__input:checked + .cst-mod__label .cst-mod__for {
  color: var(--color-primary-ink);
  opacity: 0.82;
}

/* ---- 搭配建议 ---- */
.page-custom .cst-pairs {
  margin-top: var(--space-8);
}

.page-custom .cst-sub-title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  margin: 0 0 var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: 3px solid var(--color-primary);
}

.page-custom .cst-sub-title--warn {
  margin-top: var(--space-6);
  border-bottom-color: var(--color-accent);
}

.page-custom .cst-pair-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-3);
}

@media (min-width: 900px) {
  .page-custom .cst-pair-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-custom .cst-pair-list--warn {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-custom .cst-pair {
  display: grid;
  gap: var(--space-2);
  padding: var(--space-3);
  background: var(--color-surface-alt);
  border-top: 3px solid var(--color-accent);
}

.page-custom .cst-pair--warn {
  background: transparent;
  border: var(--border-thin) dotted var(--color-line);
  border-top: 3px solid var(--color-accent);
}

.page-custom .cst-pair__tag {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  color: var(--color-accent);
}

.page-custom .cst-pair__tag--warn {
  color: var(--color-ink-muted);
}

.page-custom .cst-pair__name {
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: 1.35;
  color: var(--color-ink);
}

.page-custom .cst-pair__desc {
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ---- 推进阶段 ---- */
.page-custom .cst-flow .section-head {
  margin-bottom: var(--space-6);
}

.page-custom .cst-flow__figure {
  margin: 0 0 var(--space-8);
}

.page-custom .cst-flow__figure .media-frame__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-custom .cst-steps {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0 0 0 var(--space-6);
  display: grid;
  gap: var(--space-6);
}

.page-custom .cst-steps::before {
  content: "";
  position: absolute;
  inset-block: 0;
  inset-inline-start: calc(var(--space-2) - var(--border-thin));
  inline-size: var(--border-thin);
  background: var(--color-line);
}

.page-custom .cst-step {
  position: relative;
}

.page-custom .cst-step::before {
  content: "";
  position: absolute;
  inset-inline-start: calc(-1 * var(--space-4));
  inset-block-start: var(--space-1);
  inline-size: var(--space-2);
  block-size: var(--space-2);
  background: var(--color-surface);
  border: 2px solid var(--color-accent);
}

.page-custom .cst-step__tick {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.16em;
  color: var(--color-accent);
  margin-bottom: var(--space-1);
}

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

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

@media (min-width: 900px) {
  .page-custom .cst-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-6) var(--space-8);
    padding-left: var(--space-8);
  }
}

@media (min-width: 1180px) {
  .page-custom .cst-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--space-4);
  }
}

.page-custom .cst-flow__aside {
  margin: var(--space-6) 0 0;
  padding-top: var(--space-3);
  border-top: var(--border-thin) dotted var(--color-line);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ---- 收尾行动出口 ---- */
.page-custom .cst-cta {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-custom .cst-cta__coord {
  color: var(--color-contrast-accent);
  opacity: 0.9;
}

.page-custom .cst-cta__title {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
  margin: var(--space-3) 0 var(--space-4);
  max-width: 20ch;
}

.page-custom .cst-cta__lede {
  margin: 0 0 var(--space-6);
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
  max-width: var(--measure);
}

.page-custom .cst-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.page-custom .cst-cta__note {
  margin: var(--space-4) 0 0;
  padding-top: var(--space-3);
  border-top: var(--border-thin) dotted var(--color-contrast-line);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  line-height: 1.7;
  color: var(--color-contrast-ink);
  opacity: 0.78;
}

@media (min-width: 900px) {
  .page-custom .cst-cta__inner {
    display: grid;
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    column-gap: var(--gutter);
    align-items: start;
  }

  .page-custom .cst-cta__coord {
    grid-column: 1 / span 2;
  }

  .page-custom .cst-cta__title {
    grid-column: 1;
    margin-bottom: var(--space-3);
  }

  .page-custom .cst-cta__lede {
    grid-column: 1;
    margin-bottom: 0;
  }

  .page-custom .cst-cta__actions {
    grid-column: 2;
    grid-row: 2 / span 2;
    align-self: start;
    flex-direction: column;
    align-items: flex-start;
    padding-left: var(--space-4);
    border-left: var(--border-thin) dotted var(--color-contrast-line);
  }

  .page-custom .cst-cta__note {
    grid-column: 1 / span 2;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-custom .cst-mod__label {
    transition: none;
  }
}
</main>