.page-contact {
  --coop-grid: rgba(143, 168, 179, 0.16);
  --coop-edge: rgba(143, 168, 179, 0.38);
  --coop-card: #fbf6ec;
  --coop-on-dark: rgba(247, 242, 232, 0.06);
  --coop-on-dark-line: rgba(143, 168, 179, 0.28);
}

.page-contact *,
.page-contact *::before,
.page-contact *::after {
  box-sizing: border-box;
}

.page-contact img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ---------- 首屏 ---------- */
.page-contact .coop-hero {
  position: relative;
  overflow: hidden;
  padding: 28px 0 52px;
  color: var(--paper);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(242, 163, 58, 0.18), transparent 62%),
    radial-gradient(90% 80% at 0% 100%, rgba(49, 200, 184, 0.14), transparent 64%),
    linear-gradient(160deg, var(--night) 0%, var(--night-2) 58%, #102e3a 100%);
}

.page-contact .coop-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.55;
  background-image:
    linear-gradient(var(--coop-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--coop-grid) 1px, transparent 1px);
  background-size: 48px 48px;
}

.page-contact .coop-hero__inner {
  position: relative;
  z-index: 1;
}

.page-contact .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
  font-family: var(--font-ui);
  font-size: 13px;
  color: var(--paper-55);
}

.page-contact .breadcrumb-list a {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid rgba(247, 242, 232, 0.35);
  padding-bottom: 1px;
}

.page-contact .breadcrumb-list a:hover {
  border-bottom-color: var(--amber);
}

.page-contact .coop-hero__grid {
  display: grid;
  gap: 28px;
}

.page-contact .coop-hero__lead h1 {
  margin: 12px 0 16px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(30px, 7.2vw, 54px);
  line-height: 1.14;
  letter-spacing: -0.01em;
}

.page-contact .coop-hero__intro {
  margin: 0;
  max-width: 36em;
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.85;
  color: var(--paper-80);
}

.page-contact .coop-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-contact .coop-rail {
  padding: 20px;
  border: 1px solid var(--coop-on-dark-line);
  border-radius: 18px 4px 18px 4px;
  background: var(--coop-on-dark);
  backdrop-filter: blur(2px);
}

.page-contact .coop-rail__title {
  margin: 0 0 14px;
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--aqua);
}

.page-contact .coop-rail__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-contact .coop-rail__list li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px dashed rgba(143, 168, 179, 0.22);
  font-family: var(--font-ui);
  font-size: 15px;
  color: var(--paper);
}

.page-contact .coop-rail__list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .coop-rail__list .mono {
  font-size: 13px;
  color: var(--amber);
}

.page-contact .coop-rail__note {
  margin: 16px 0 0;
  font-family: var(--font-ui);
  font-size: 13px;
  line-height: 1.7;
  color: var(--paper-55);
}

/* ---------- 合作类型 ---------- */
.page-contact .coop-paths {
  padding: 52px 0;
  background: var(--paper);
  color: var(--ink);
}

.page-contact .section-head {
  margin-bottom: 30px;
}

.page-contact .coop-paths .section-title,
.page-contact .coop-gains .section-title,
.page-contact .coop-prep .section-title,
.page-contact .coop-faq .section-title {
  color: var(--ink);
}

.page-contact .coop-tabs {
  display: grid;
  gap: 20px;
}

.page-contact .coop-tabs .tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact .coop-tabs .tabs__tab {
  appearance: none;
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: 14px;
  font-weight: 600;
  padding: 10px 14px;
  border: 1px solid var(--coop-edge);
  border-radius: 4px 12px 4px 12px;
  background: transparent;
  color: var(--slate);
  transition: background var(--t-fast) var(--ease), color var(--t-fast) var(--ease),
    border-color var(--t-fast) var(--ease);
}

.page-contact .coop-tabs .tabs__tab:hover {
  border-color: var(--mist);
  color: var(--ink);
}

.page-contact .coop-tabs .tabs__tab[aria-selected="true"] {
  background: var(--night);
  border-color: var(--night);
  color: var(--paper);
}

.page-contact .coop-tabs .tabs__tab:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
  box-shadow: inset 0 0 0 2px rgba(49, 200, 184, 0.35);
}

.page-contact .tabs__panel[hidden] {
  display: none;
}

.page-contact .coop-panel {
  padding: 22px;
  border: 1px solid var(--coop-edge);
  border-left: 4px solid var(--amber);
  border-radius: 4px 18px 4px 18px;
  background: var(--coop-card);
}

.page-contact .coop-panel__pair {
  display: grid;
  gap: 20px;
}

.page-contact .coop-panel__cell h3,
.page-contact .coop-panel__prep h3 {
  margin: 0 0 8px;
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--mist);
}

.page-contact .coop-panel__cell p {
  margin: 0;
  font-family: var(--font-ui);
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-76);
}

.page-contact .coop-panel__prep {
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px dashed var(--coop-edge);
}

.page-contact .coop-panel__prep ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-contact .coop-panel__prep li {
  position: relative;
  padding-left: 20px;
  font-family: var(--font-ui);
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-76);
}

.page-contact .coop-panel__prep li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.7em;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--aqua);
}

/* ---------- 对接流程 ---------- */
.page-contact .coop-flow {
  padding: 52px 0 56px;
  color: var(--paper);
  background:
    radial-gradient(100% 70% at 100% 0%, rgba(242, 163, 58, 0.14), transparent 60%),
    linear-gradient(170deg, var(--night) 0%, var(--night-2) 100%);
}

.page-contact .coop-flow__head {
  margin-bottom: 32px;
}

.page-contact .coop-flow__head .section-title {
  color: var(--paper);
}

.page-contact .coop-flow__head .section-lead {
  color: var(--paper-70);
}

.page-contact .coop-flow__grid {
  display: grid;
  gap: 32px;
}

.page-contact .coop-flow__media {
  margin: 0;
  border-radius: 4px 18px 4px 18px;
  overflow: hidden;
  border: 1px solid var(--coop-on-dark-line);
}

.page-contact .coop-flow__media img {
  width: 100%;
  aspect-ratio: 2 / 1;
  height: auto;
  object-fit: cover;
  filter: saturate(1.05) contrast(1.02);
}

.page-contact .coop-flow__media figcaption {
  padding: 12px 16px;
  font-family: var(--font-ui);
  font-size: 13px;
  line-height: 1.6;
  color: var(--paper-55);
  background: rgba(11, 31, 42, 0.55);
}

.page-contact .flow-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 16px;
}

.page-contact .flow-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  padding: 18px;
  border: 1px solid var(--coop-on-dark-line);
  border-radius: 4px 14px 4px 14px;
  background: var(--coop-on-dark);
  transition: transform var(--t-fast) var(--ease), background var(--t-fast) var(--ease),
    border-color var(--t-fast) var(--ease);
}

.page-contact .flow-step:hover,
.page-contact .flow-step:focus-visible {
  transform: translateY(-2px);
  background: rgba(247, 242, 232, 0.09);
  border-color: rgba(242, 163, 58, 0.5);
}

.page-contact .flow-step:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
  box-shadow: inset 0 0 0 2px rgba(49, 200, 184, 0.4);
}

.page-contact .flow-step__num {
  font-size: 26px;
  line-height: 1;
  color: var(--amber);
  letter-spacing: -0.02em;
}

.page-contact .flow-step__body h3 {
  margin: 0 0 8px;
  font-family: var(--font-ui);
  font-size: 17px;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .flow-step__body p {
  margin: 0;
  font-family: var(--font-ui);
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper-70);
}

/* ---------- 合作方可获得 ---------- */
.page-contact .coop-gains {
  padding: 52px 0;
  background: var(--paper);
  color: var(--ink);
}

.page-contact .gain-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .gain-row {
  display: grid;
  gap: 8px;
  padding: 18px 0;
  border-top: 1px solid var(--coop-edge);
}

.page-contact .gain-row:last-child {
  border-bottom: 1px solid var(--coop-edge);
}

.page-contact .gain-row h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 600;
  color: var(--ink);
}

.page-contact .gain-row p {
  margin: 0;
  font-family: var(--font-ui);
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-76);
}

.page-contact .gain-row .tag {
  justify-self: start;
}

/* ---------- 联系信息 ---------- */
.page-contact .coop-contact {
  padding: 52px 0;
  color: var(--paper);
  background:
    radial-gradient(80% 70% at 10% 0%, rgba(49, 200, 184, 0.16), transparent 62%),
    linear-gradient(150deg, var(--slate) 0%, var(--night) 62%);
}

.page-contact .coop-contact__grid {
  display: grid;
  gap: 28px;
}

.page-contact .coop-contact__plate {
  padding: 24px;
  border: 1px solid var(--coop-on-dark-line);
  border-top: 3px solid var(--amber);
  border-radius: 18px 4px 18px 4px;
  background: rgba(11, 31, 42, 0.62);
}

.page-contact .coop-contact__plate h2 {
  margin: 10px 0 22px;
  font-family: var(--font-display);
  font-size: clamp(24px, 5vw, 34px);
  font-weight: 700;
  color: var(--paper);
}

.page-contact .contact-list {
  margin: 0;
  display: grid;
  gap: 18px;
}

.page-contact .contact-item {
  padding-bottom: 16px;
  border-bottom: 1px dashed rgba(143, 168, 179, 0.26);
}

.page-contact .contact-item:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-contact .contact-item dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--aqua);
}

.page-contact .contact-item dd {
  margin: 6px 0 0;
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.7;
  color: var(--paper);
  word-break: break-word;
}

.page-contact .contact-strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 17px;
  color: var(--amber-soft);
}

.page-contact .contact-note {
  display: block;
  margin-top: 8px;
  font-family: var(--font-ui);
  font-size: 13px;
  line-height: 1.7;
  color: var(--paper-55);
}

.page-contact .coop-contact__media {
  margin: 0;
  border-radius: 18px 4px 18px 4px;
  overflow: hidden;
  border: 1px solid var(--coop-on-dark-line);
}

.page-contact .coop-contact__media img {
  width: 100%;
  aspect-ratio: 1 / 1;
  height: auto;
  object-fit: cover;
}

.page-contact .coop-contact__media figcaption {
  padding: 12px 16px;
  font-family: var(--font-ui);
  font-size: 13px;
  line-height: 1.6;
  color: var(--paper-55);
  background: rgba(11, 31, 42, 0.6);
}

/* ---------- 准备材料 ---------- */
.page-contact .coop-prep {
  padding: 52px 0;
  background: var(--paper);
  color: var(--ink);
}

.page-contact .coop-prep__grid {
  display: grid;
  gap: 20px;
}

.page-contact .prep-card {
  padding: 22px;
  border: 1px solid var(--coop-edge);
  border-radius: 4px 18px 4px 18px;
  background: var(--coop-card);
}

.page-contact .prep-card--coop {
  border-left: 4px solid var(--amber);
}

.page-contact .prep-card--tech {
  border-left: 4px solid var(--aqua);
  background: rgba(111, 149, 168, 0.14);
}

.page-contact .prep-card h3 {
  margin: 10px 0 16px;
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--ink);
}

.page-contact .prep-card ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-contact .prep-card li {
  padding-left: 18px;
  position: relative;
  font-family: var(--font-ui);
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-76);
}

.page-contact .prep-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--slate);
}

.page-contact .prep-card li strong {
  color: var(--ink);
  font-weight: 700;
}

.page-contact .prep-card__foot {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--coop-edge);
  font-family: var(--font-ui);
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-58);
}

/* ---------- 常见问答 ---------- */
.page-contact .coop-faq {
  padding: 52px 0 64px;
  background: var(--paper);
  color: var(--ink);
  border-top: 1px solid var(--coop-edge);
}

.page-contact .faq-list {
  display: grid;
  border-top: 1px solid var(--coop-edge);
}

.page-contact .faq-item {
  border-bottom: 1px solid var(--coop-edge);
}

.page-contact .faq-item summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-ui);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink);
}

.page-contact .faq-item summary::-webkit-details-marker {
  display: none;
}

.page-contact .faq-item summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--amber);
}

.page-contact .faq-item[open] summary::after {
  content: "−";
  color: var(--aqua);
}

.page-contact .faq-item summary:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

.page-contact .faq-item p {
  margin: 0 0 18px;
  max-width: 36em;
  font-family: var(--font-ui);
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-76);
}

.page-contact .coop-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 24px;
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px dashed var(--coop-edge);
}

.page-contact .coop-links .link-inline,
.page-contact .prep-card__foot .link-inline {
  font-family: var(--font-ui);
  font-size: 14px;
  font-weight: 600;
  color: var(--slate);
  text-decoration: none;
  border-bottom: 1px solid var(--coop-edge);
  padding-bottom: 2px;
}

.page-contact .coop-links .link-inline:hover,
.page-contact .prep-card__foot .link-inline:hover {
  color: var(--ink);
  border-bottom-color: var(--amber);
}

.page-contact .coop-links .link-inline:focus-visible,
.page-contact .prep-card__foot .link-inline:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-contact .coop-hero {
    padding: 32px 0 64px;
  }

  .page-contact .coop-paths,
  .page-contact .coop-flow,
  .page-contact .coop-gains,
  .page-contact .coop-contact,
  .page-contact .coop-prep,
  .page-contact .coop-faq {
    padding-top: 64px;
    padding-bottom: 64px;
  }

  .page-contact .coop-panel__pair {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .page-contact .coop-panel {
    padding: 26px;
  }

  .page-contact .coop-prep__grid {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }

  .page-contact .gain-row {
    grid-template-columns: 128px 1fr;
    align-items: start;
    gap: 6px 20px;
    padding: 20px 0;
  }

  .page-contact .gain-row h3 {
    grid-column: 2;
  }

  .page-contact .gain-row p {
    grid-column: 2;
  }
}

@media (min-width: 960px) {
  .page-contact .coop-hero {
    padding: 36px 0 76px;
  }

  .page-contact .coop-hero__grid {
    grid-template-columns: minmax(0, 1fr) 304px;
    gap: 48px;
    align-items: start;
  }

  .page-contact .coop-flow__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 40px;
    align-items: start;
  }

  .page-contact .flow-list li:nth-child(even) {
    margin-inline-start: 40px;
  }

  .page-contact .flow-step {
    padding: 20px 22px;
  }

  .page-contact .flow-step__num {
    font-size: 30px;
  }

  .page-contact .coop-contact__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 36px;
    align-items: stretch;
  }

  .page-contact .coop-contact__plate {
    padding: 30px;
  }

  .page-contact .contact-list {
    grid-template-columns: 1fr 1fr;
    gap: 22px 28px;
  }

  .page-contact .contact-item:nth-last-child(-n + 2) {
    border-bottom: 0;
    padding-bottom: 0;
  }

  .page-contact .gain-row {
    grid-template-columns: 148px 220px 1fr;
    align-items: baseline;
  }

  .page-contact .gain-row h3,
  .page-contact .gain-row p {
    grid-column: auto;
  }

  .page-contact .faq-list {
    max-width: 880px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .flow-step,
  .page-contact .coop-tabs .tabs__tab {
    transition: color var(--t-fast) var(--ease), background-color var(--t-fast) var(--ease);
  }

  .page-contact .flow-step:hover,
  .page-contact .flow-step:focus-visible {
    transform: none;
  }
}
<<<PAGE_CSS_END>>>