.page-partners {
  --pn-glass: color-mix(in srgb, var(--color-surface) 74%, transparent);
  --pn-glass-soft: color-mix(in srgb, var(--color-surface) 60%, transparent);
  --pn-glass-strong: color-mix(in srgb, var(--color-surface) 88%, transparent);
  --pn-glass-deep: color-mix(in srgb, var(--color-contrast-surface) 56%, transparent);
  --pn-edge: color-mix(in srgb, var(--color-primary-ink) 52%, var(--color-line));
  --pn-edge-deep: color-mix(in srgb, var(--color-contrast-ink) 24%, transparent);
  --pn-hair: color-mix(in srgb, var(--color-line) 82%, transparent);
  display: block;
}

/* ---------- 首屏 ---------- */
.page-partners .pn-hero {
  position: relative;
  overflow: hidden;
  padding: var(--space-6) 0 var(--space-8);
  color: var(--color-contrast-ink);
  background:
    radial-gradient(125% 90% at 6% -12%, color-mix(in srgb, var(--color-primary) 46%, transparent) 0%, transparent 58%),
    radial-gradient(95% 80% at 104% 108%, color-mix(in srgb, var(--color-accent) 38%, transparent) 0%, transparent 60%),
    var(--color-contrast-surface);
}

.page-partners .pn-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, color-mix(in srgb, var(--color-contrast-line) 80%, transparent) 1px, transparent 1px),
    linear-gradient(to bottom, color-mix(in srgb, var(--color-contrast-line) 80%, transparent) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.28;
  pointer-events: none;
}

.page-partners .pn-hero__shell {
  position: relative;
  z-index: 1;
}

.page-partners .pn-hero__crumbs .breadcrumbs__link,
.page-partners .pn-hero__crumbs .breadcrumbs__sep {
  color: color-mix(in srgb, var(--color-contrast-ink) 74%, transparent);
}

.page-partners .pn-hero__title {
  margin: var(--space-3) 0 var(--space-3);
  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-contrast-ink);
}

.page-partners .pn-hero__lede {
  max-width: 58ch;
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 82%, transparent);
}

.page-partners .pn-figures {
  list-style: none;
  margin: var(--space-6) 0 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.page-partners .pn-figures__item {
  padding: var(--space-3);
  border-radius: var(--radius-lg);
  border: var(--border-thin) solid var(--pn-edge-deep);
  background:
    linear-gradient(color-mix(in srgb, var(--color-contrast-ink) 9%, transparent), transparent),
    var(--pn-glass-deep);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow-1);
}

.page-partners .pn-figures__num {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--color-contrast-ink);
}

.page-partners .pn-figures__label {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: color-mix(in srgb, var(--color-contrast-ink) 76%, transparent);
}

.page-partners .pn-figures__label::before {
  content: "";
  flex: none;
  width: 12px;
  height: 2px;
  border-radius: var(--radius-pill);
  background: var(--color-contrast-accent);
}

/* ---------- 三类角色 ---------- */
.page-partners .pn-roles-wrap {
  position: relative;
  margin-top: var(--space-6);
}

.page-partners .pn-roles__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-lg);
  opacity: 0.15;
  pointer-events: none;
}

.page-partners .pn-roles {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--space-3);
}

.page-partners .pn-role {
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  border: var(--border-thin) solid var(--pn-edge);
  box-shadow: var(--shadow-1);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background-color 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
}

.page-partners .pn-role--a {
  background: color-mix(in srgb, var(--color-surface) 78%, transparent);
}

.page-partners .pn-role--b {
  background: color-mix(in srgb, var(--color-primary-soft) 64%, transparent);
}

.page-partners .pn-role--c {
  background: color-mix(in srgb, var(--color-surface) 86%, transparent);
}

.page-partners .pn-role__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}

.page-partners .pn-role__tag {
  display: inline-flex;
  align-items: center;
  padding: 4px var(--space-2);
  border-radius: var(--radius-pill);
  border: var(--border-thin) solid var(--pn-hair);
  background: color-mix(in srgb, var(--color-surface-deep) 62%, transparent);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-ink-soft);
}

.page-partners .pn-role__title {
  margin: var(--space-3) 0 var(--space-2);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-partners .pn-role__text {
  margin: 0 0 var(--space-3);
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

.page-partners .pn-role__cols {
  display: grid;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.page-partners .pn-role__label {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  font-weight: 400;
  color: var(--color-ink-muted);
}

.page-partners .pn-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.page-partners .pn-list li {
  position: relative;
  padding-left: var(--space-3);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink);
}

.page-partners .pn-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.66em;
  width: 9px;
  height: 2px;
  border-radius: var(--radius-pill);
  background: var(--color-ink-muted);
}

.page-partners .pn-list--yes li::before {
  background: var(--color-accent);
}

.page-partners .pn-list--no li::before {
  background: color-mix(in srgb, var(--color-ink-muted) 62%, transparent);
}

.page-partners .pn-role__meta {
  margin: var(--space-4) 0 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.page-partners .pn-role__meta > div {
  display: grid;
  grid-template-columns: 5.6em minmax(0, 1fr);
  gap: var(--space-2);
}

.page-partners .pn-role__meta dt {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  line-height: 1.9;
  color: var(--color-ink-muted);
}

.page-partners .pn-role__meta dd {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink);
}

/* ---------- 边界横幅 ---------- */
.page-partners .pn-band {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: 260px;
  width: 100%;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: var(--border-thin) solid var(--color-contrast-line);
  box-shadow: var(--shadow-1);
}

.page-partners .pn-band__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-partners .pn-band__scrim {
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
}

.page-partners .pn-band__inner {
  position: relative;
  z-index: 1;
  padding: var(--space-6) var(--space-3) var(--space-4);
  color: var(--color-contrast-ink);
}

.page-partners .pn-band__title {
  margin: var(--space-2) 0 var(--space-2);
  max-width: 22ch;
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-contrast-ink);
}

.page-partners .pn-band__text {
  margin: 0;
  max-width: 54ch;
  font-size: var(--text-sm);
  line-height: 1.8;
  color: color-mix(in srgb, var(--color-contrast-ink) 82%, transparent);
}

/* ---------- 支撑条件与边界清单 ---------- */
.page-partners .pn-scope {
  margin-top: var(--space-6);
}

.page-partners .pn-filters {
  margin-bottom: var(--space-3);
}

.page-partners .pn-boundaries {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.page-partners .pn-boundary {
  border-radius: var(--radius-md);
  border: var(--border-thin) solid var(--pn-edge);
  background: var(--pn-glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow-1);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.page-partners .pn-boundary:hover {
  background: var(--pn-glass-strong);
  border-color: color-mix(in srgb, var(--color-primary) 40%, var(--color-line));
}

.page-partners .pn-boundary__details {
  display: block;
}

.page-partners .pn-boundary__summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  grid-template-areas:
    "role kind mark"
    "conclusion conclusion conclusion";
  align-items: center;
  gap: var(--space-1) var(--space-2);
  padding: var(--space-3);
  cursor: pointer;
  list-style: none;
}

.page-partners .pn-boundary__summary::-webkit-details-marker {
  display: none;
}

.page-partners .pn-boundary__summary:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
  border-radius: var(--radius-md);
}

.page-partners .pn-boundary__role {
  grid-area: role;
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
}

.page-partners .pn-boundary__kind {
  grid-area: kind;
  justify-self: start;
  padding: 2px var(--space-1);
  border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--color-highlight) 62%, transparent);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-accent);
}

.page-partners .pn-boundary__conclusion {
  grid-area: conclusion;
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

.page-partners .pn-boundary__mark {
  grid-area: mark;
  position: relative;
  justify-self: end;
  width: 22px;
  height: 22px;
  border-radius: var(--radius-pill);
  border: var(--border-thin) solid var(--color-line);
}

.page-partners .pn-boundary__mark::before,
.page-partners .pn-boundary__mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 10px;
  height: 1px;
  background: var(--color-ink-muted);
  transform: translate(-50%, -50%);
}

.page-partners .pn-boundary__mark::after {
  transform: translate(-50%, -50%) rotate(90deg);
  transition: opacity 0.2s ease;
}

.page-partners .pn-boundary__details[open] .pn-boundary__mark::after {
  opacity: 0;
}

.page-partners .pn-boundary__body {
  padding: 0 var(--space-3) var(--space-3);
}

.page-partners .pn-boundary__basis {
  margin: 0;
  padding-left: var(--space-3);
  border-left: var(--border-thin) solid var(--color-accent);
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: 1.8;
  color: var(--color-ink-soft);
}

/* ---------- 交付标准 ---------- */
.page-partners .pn-deliver {
  margin-top: var(--space-6);
  display: grid;
  gap: var(--space-4);
}

.page-partners .pn-deliver__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-3);
}

.page-partners .pn-deliver__row {
  padding: var(--space-3);
  border-radius: var(--radius-md);
  border: var(--border-thin) solid var(--pn-edge);
  background: var(--pn-glass-soft);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow-1);
}

.page-partners .pn-deliver__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}

.page-partners .pn-deliver__role {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.06em;
  color: var(--color-ink);
}

.page-partners .pn-deliver__text {
  margin: var(--space-2) 0 var(--space-3);
  font-size: var(--text-base);
  line-height: 1.75;
  color: var(--color-ink-soft);
}

.page-partners .pn-deliver__meter {
  position: relative;
  height: 8px;
  border-radius: var(--radius-pill);
  background-image:
    repeating-linear-gradient(to right, var(--color-line) 0 1px, transparent 1px 10%),
    linear-gradient(var(--color-surface-deep), var(--color-surface-deep));
}

.page-partners .pn-deliver__dot {
  position: absolute;
  top: 50%;
  left: 22%;
  width: 13px;
  height: 13px;
  border-radius: var(--radius-pill);
  transform: translate(-50%, -50%);
  border: 2px solid var(--color-surface);
  box-shadow: var(--shadow-1);
  background: var(--color-accent);
}

.page-partners .pn-deliver__row--b .pn-deliver__dot {
  left: 46%;
  background: var(--color-primary);
}

.page-partners .pn-deliver__row--c .pn-deliver__dot {
  left: 78%;
  background: var(--color-ink-muted);
}

.page-partners .pn-deliver__cycle {
  margin: var(--space-2) 0 0;
  font-size: var(--text-sm);
  line-height: 1.75;
  color: var(--color-ink-muted);
}

.page-partners .pn-figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: var(--border-thin) solid var(--pn-edge);
  background: var(--pn-glass-strong);
  box-shadow: var(--shadow-1);
}

.page-partners .pn-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 3 / 2;
}

.page-partners .pn-figure--tall img {
  aspect-ratio: 5 / 4;
}

.page-partners .pn-figure figcaption {
  padding: var(--space-2) var(--space-3) var(--space-3);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-muted);
}

/* ---------- 起步刻度 ---------- */
.page-partners .pn-steps-wrap {
  margin-top: var(--space-6);
  display: grid;
  gap: var(--space-4);
}

.page-partners .pn-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-4);
}

.page-partners .pn-step {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-2);
  padding-top: var(--space-3);
  border-top: 2px solid var(--pn-hair);
}

.page-partners .pn-step__num {
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--color-accent);
}

.page-partners .pn-step__title {
  margin: 0 0 var(--space-2);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-partners .pn-step__text {
  margin: 0 0 var(--space-3);
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: 1.75;
  color: var(--color-ink-soft);
}

.page-partners .pn-step__meta {
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.page-partners .pn-step__meta > div {
  display: grid;
  grid-template-columns: 5.6em minmax(0, 1fr);
  gap: var(--space-2);
}

.page-partners .pn-step__meta dt {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  line-height: 1.9;
  color: var(--color-ink-muted);
}

.page-partners .pn-step__meta dd {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink);
}

/* ---------- 行动出口 ---------- */
.page-partners .pn-exit {
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  border: var(--border-thin) solid var(--pn-edge);
  background:
    radial-gradient(120% 120% at 0% 0%, color-mix(in srgb, var(--color-primary-soft) 78%, transparent) 0%, transparent 62%),
    var(--pn-glass-strong);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-2);
}

.page-partners .pn-exit__title {
  margin: var(--space-2) 0 var(--space-3);
  max-width: 24ch;
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-partners .pn-exit__text {
  margin: 0 0 var(--space-4);
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-partners .pn-exit__note {
  margin: var(--space-3) 0 0;
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: 1.75;
  color: var(--color-ink-muted);
}

.page-partners .pn-exit__note a {
  color: var(--color-accent);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-partners .pn-hero {
    padding: var(--space-8) 0 var(--space-8);
  }

  .page-partners .pn-figures {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-3);
    align-items: start;
  }

  .page-partners .pn-figures__item:nth-child(2) {
    margin-top: var(--space-4);
  }

  .page-partners .pn-figures__item:nth-child(3) {
    margin-top: var(--space-6);
  }

  .page-partners .pn-role__cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-partners .pn-band__inner {
    padding: var(--space-8) var(--space-6) var(--space-6);
  }

  .page-partners .pn-boundary__summary {
    grid-template-columns: auto auto minmax(0, 1fr) auto;
    grid-template-areas: "role kind conclusion mark";
    gap: var(--space-2);
  }

  .page-partners .pn-deliver__list {
    gap: var(--space-4);
  }
}

@media (min-width: 900px) {
  .page-partners .pn-roles {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: var(--space-4) var(--gutter);
  }

  .page-partners .pn-role--a {
    grid-column: 1 / 8;
  }

  .page-partners .pn-role--b {
    grid-column: 7 / 13;
    margin-top: var(--space-8);
  }

  .page-partners .pn-role--c {
    grid-column: 2 / 10;
    margin-top: var(--space-8);
  }

  .page-partners .pn-deliver {
    grid-template-columns: 1.4fr 1fr;
    gap: var(--space-6);
    align-items: start;
  }

  .page-partners .pn-steps-wrap {
    grid-template-columns: 1.15fr 0.85fr;
    gap: var(--space-8);
    align-items: start;
  }

  .page-partners .pn-step {
    grid-template-columns: 5.5rem minmax(0, 1fr);
    gap: var(--space-2) var(--space-3);
  }

  .page-partners .pn-step__num {
    font-size: var(--text-xl);
  }

  .page-partners .pn-exit {
    padding: var(--space-8) var(--space-6);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-partners .pn-role,
  .page-partners .pn-boundary {
    transition: none;
  }
}
</main>