.page-partners {
  --eco-frame: color-mix(in srgb, var(--color-primary) 38%, transparent);
  --eco-frame-accent: color-mix(in srgb, var(--color-accent) 46%, transparent);
  --eco-veil: color-mix(in srgb, var(--color-surface-alt) 72%, transparent);
  background: var(--color-surface);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  overflow-x: clip;
  padding-bottom: var(--section-y);
}

.page-partners .breadcrumbs {
  padding-block: var(--space-3) var(--space-1);
}

.page-partners .breadcrumbs ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

.page-partners .breadcrumbs a {
  color: var(--color-ink-muted);
  text-decoration: none;
}

.page-partners .breadcrumbs a:hover,
.page-partners .breadcrumbs a:focus-visible {
  color: var(--color-accent);
}

.page-partners .breadcrumbs li + li::before {
  content: "/";
  margin-right: var(--space-2);
  color: var(--color-line);
}

/* ---------- 首屏 ---------- */

.page-partners .eco-hero {
  position: relative;
  padding-block: var(--space-6) var(--space-8);
  border-bottom: var(--border-thin) solid var(--color-line);
  overflow: hidden;
}

.page-partners .eco-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 84% 4%, color-mix(in srgb, var(--color-primary) 26%, transparent), transparent 58%),
    linear-gradient(180deg, var(--eco-veil), transparent 68%);
}

.page-partners .eco-hero .container {
  position: relative;
  z-index: 1;
}

.page-partners .eco-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}

.page-partners .eco-hero .eyebrow {
  margin: 0 0 var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.page-partners .eco-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: 1.03;
  letter-spacing: -0.01em;
  color: var(--color-ink);
  max-width: 12ch;
}

.page-partners .eco-hero__lead {
  margin: 0;
  max-width: 56ch;
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-partners .eco-figures {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.page-partners .eco-figure {
  flex: 1 1 96px;
  min-width: 0;
  padding-top: var(--space-2);
  border-top: var(--border-thick) solid var(--color-accent);
}

.page-partners .eco-figure__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;
  color: var(--color-accent);
}

.page-partners .eco-figure__label {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-ink-muted);
}

/* ---------- 编号索引带 ---------- */

.page-partners .eco-indexbelt {
  padding-block: var(--space-6) var(--space-8);
}

.page-partners .eco-indexbelt__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2) var(--space-4);
  margin-bottom: var(--space-3);
}

.page-partners .eco-indexbelt__title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-partners .eco-indexbelt__note {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

.page-partners .eco-index {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-partners .eco-index a {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 46px;
  height: 38px;
  padding-inline: var(--space-1);
  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);
  background: color-mix(in srgb, var(--color-surface-alt) 55%, transparent);
  transition: color 180ms ease, border-color 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.page-partners .eco-index a:hover,
.page-partners .eco-index a:focus-visible {
  color: var(--color-accent);
  border-color: var(--eco-frame-accent);
  background: color-mix(in srgb, var(--color-highlight) 45%, transparent);
  box-shadow: var(--shadow-1);
}

.page-partners .eco-index a:focus-visible {
  outline: var(--border-thick) solid var(--color-focus);
  outline-offset: 2px;
}

.page-partners .eco-indexbelt__media {
  margin: var(--space-4) 0 0;
}

.page-partners .media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: var(--border-thin) solid var(--color-line);
  border-radius: 0;
}

/* ---------- 协作类型 ---------- */

.page-partners .eco-type {
  padding-block: var(--section-y);
  border-top: var(--border-thin) solid var(--color-line);
  scroll-margin-top: calc(var(--space-8) * 2);
}

.page-partners .eco-type__head {
  position: relative;
  padding-left: var(--space-4);
  margin-bottom: var(--space-6);
  max-width: var(--measure);
}

.page-partners .eco-type__head::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: var(--border-thick);
  background: linear-gradient(180deg, var(--color-accent), color-mix(in srgb, var(--color-primary) 30%, transparent));
}

.page-partners .eco-type--push .eco-type__head {
  margin-left: auto;
  padding-left: 0;
  padding-right: var(--space-4);
  text-align: right;
}

.page-partners .eco-type--push .eco-type__head::before {
  left: auto;
  right: 0;
}

.page-partners .eco-type__label {
  margin: 0 0 var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.2em;
  color: var(--color-accent);
}

.page-partners .eco-type__title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-partners .eco-type__desc {
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ---------- 条目 ---------- */

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

.page-partners .eco-entry {
  scroll-margin-top: calc(var(--space-8) * 2);
}

.page-partners .eco-entry__box {
  border-bottom: var(--border-thin) solid var(--color-line);
  transition: background 200ms ease, box-shadow 200ms ease;
}

.page-partners .eco-entry__box[open] {
  background: color-mix(in srgb, var(--color-primary-soft) 52%, transparent);
  box-shadow: inset var(--border-thick) 0 0 0 var(--color-accent);
}

.page-partners .eco-entry__summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-1) var(--space-3);
  padding: var(--space-2) var(--space-2) var(--space-2) var(--space-1);
  cursor: pointer;
  list-style: none;
  transition: color 180ms ease;
}

.page-partners .eco-entry__summary::-webkit-details-marker {
  display: none;
}

.page-partners .eco-entry__summary:hover {
  color: var(--color-ink);
}

.page-partners .eco-entry__no {
  flex: 0 0 auto;
  min-width: 2.4em;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.06em;
  color: var(--color-accent);
}

.page-partners .eco-entry__tag {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  padding: 2px var(--space-1);
  border: var(--border-thin) solid var(--eco-frame);
  border-radius: var(--radius-sm);
  color: var(--color-ink-soft);
  background: color-mix(in srgb, var(--color-primary-soft) 55%, transparent);
}

.page-partners .eco-entry__brief {
  flex: 1 1 240px;
  min-width: 0;
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-ink);
}

.page-partners .eco-entry__caret {
  flex: 0 0 auto;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-partners .eco-entry__caret::before {
  content: "+";
}

.page-partners .eco-entry__box[open] .eco-entry__caret::before {
  content: "−";
  color: var(--color-accent);
}

.page-partners .eco-entry__detail {
  padding: 0 var(--space-2) var(--space-3) var(--space-3);
  display: grid;
  gap: var(--space-1);
  max-width: var(--measure);
}

.page-partners .eco-entry__detail p {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

.page-partners .eco-entry__detail a {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: var(--border-thin) solid var(--eco-frame-accent);
}

.page-partners .eco-entry__detail a:hover,
.page-partners .eco-entry__detail a:focus-visible {
  color: var(--color-focus);
  border-bottom-color: var(--color-focus);
}

.page-partners .eco-entry__k {
  display: inline-block;
  min-width: 5.2em;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

.page-partners .eco-type:nth-of-type(odd) .eco-entry:nth-child(even) .eco-entry__summary {
  padding-left: var(--space-3);
}

/* ---------- 通栏图 ---------- */

.page-partners .eco-band-media {
  margin: 0;
  padding-inline: var(--space-3);
}

.page-partners .eco-band-media img {
  border-left: none;
  border-right: none;
}

/* ---------- 对接窗口 ---------- */

.page-partners .eco-window {
  padding-block: var(--section-y);
  border-top: var(--border-thin) solid var(--color-line);
  background: color-mix(in srgb, var(--color-surface-alt) 42%, transparent);
}

.page-partners .eco-window__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}

.page-partners .eco-window .eyebrow {
  margin: 0 0 var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.24em;
  color: var(--color-accent);
}

.page-partners .eco-window__title {
  margin: 0 0 var(--space-3);
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-partners .eco-window__lead {
  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 .eco-tabs {
  border-top: var(--border-thin) solid var(--color-line);
  padding-top: var(--space-3);
}

.page-partners .tablist {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin-bottom: var(--space-3);
}

.page-partners .tab {
  appearance: none;
  cursor: pointer;
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  padding: var(--space-1) var(--space-2);
  color: var(--color-ink-soft);
  background: transparent;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  transition: color 180ms ease, border-color 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

.page-partners .tab:hover {
  color: var(--color-ink);
  border-color: var(--eco-frame);
}

.page-partners .tab[aria-selected="true"] {
  color: var(--color-accent);
  border-color: var(--eco-frame-accent);
  background: color-mix(in srgb, var(--color-highlight) 55%, transparent);
  box-shadow: var(--shadow-1);
}

.page-partners .tab:focus-visible {
  outline: var(--border-thick) solid var(--color-focus);
  outline-offset: 2px;
}

.page-partners .tabpanel {
  padding-top: var(--space-1);
  max-width: var(--measure);
}

.page-partners .tabpanel > p {
  margin: 0 0 var(--space-2);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-partners .eco-tabs__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-1);
}

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

.page-partners .eco-tabs__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.85em;
  width: var(--space-2);
  height: var(--border-thin);
  background: var(--color-accent);
}

.page-partners .eco-tabs__list a {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: var(--border-thin) solid var(--eco-frame-accent);
}

.page-partners .eco-tabs__list a:hover,
.page-partners .eco-tabs__list a:focus-visible {
  color: var(--color-focus);
}

.page-partners .eco-window__media {
  margin: 0;
}

/* ---------- 边界与准入 ---------- */

.page-partners .eco-bound {
  padding-block: var(--section-y-lg) var(--space-8);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-partners .eco-bound__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}

.page-partners .eco-bound__media {
  margin: 0;
}

.page-partners .eco-bound .eyebrow {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.24em;
  color: var(--color-accent);
}

.page-partners .eco-bound__title {
  margin: 0 0 var(--space-3);
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-partners .eco-bound__diagram {
  display: block;
  width: 100%;
  max-width: 340px;
  height: auto;
  margin: 0 0 var(--space-3);
}

.page-partners .eco-bound__lead {
  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 .eco-rules {
  list-style: none;
  counter-reset: eco-rule;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-3);
  max-width: var(--measure);
}

.page-partners .eco-rules li {
  counter-increment: eco-rule;
  position: relative;
  padding-left: var(--space-6);
  padding-top: var(--space-2);
  border-top: var(--border-thin) solid var(--color-line);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

.page-partners .eco-rules li::before {
  content: counter(eco-rule, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.06em;
  color: var(--color-accent);
}

.page-partners .eco-rules strong {
  display: block;
  margin-bottom: var(--space-1);
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
}

.page-partners .eco-bound__tail {
  margin: var(--space-4) 0 0;
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: 1.8;
  color: var(--color-ink-soft);
}

.page-partners .eco-bound__tail a {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: var(--border-thin) solid var(--eco-frame-accent);
}

.page-partners .eco-bound__tail a:hover,
.page-partners .eco-bound__tail a:focus-visible {
  color: var(--color-focus);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-partners .eco-index a {
    min-width: 52px;
  }

  .page-partners .eco-type__title {
    font-size: var(--text-3xl);
  }

  .page-partners .eco-band-media {
    padding-inline: var(--space-6);
  }
}

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

  .page-partners .eco-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: var(--space-8);
  }

  .page-partners .eco-figures {
    align-self: end;
    gap: var(--space-3);
  }

  .page-partners .eco-indexbelt {
    padding-block: var(--space-8) var(--section-y);
  }

  .page-partners .eco-entry__summary {
    gap: var(--space-4);
    padding-block: var(--space-3);
  }

  .page-partners .eco-entry__brief {
    font-size: var(--text-base);
  }

  .page-partners .eco-window__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: var(--space-8);
  }

  .page-partners .eco-bound__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
    gap: var(--space-8);
  }

  .page-partners .eco-bound__diagram {
    max-width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-partners *,
  .page-partners *::before,
  .page-partners *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
  }
}