.page-contact {
  --c-cut: 18px;
  --c-hair-light: rgba(14, 27, 42, 0.14);
  --c-hair-dark: rgba(243, 239, 231, 0.14);
  --c-coral-line: rgba(255, 95, 109, 0.42);
}

/* ---------- 首屏 ---------- */
.page-contact .coop-hero {
  position: relative;
  overflow: hidden;
}

.page-contact .coop-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg, rgba(53, 224, 208, 0.055) 0 1px, transparent 1px 76px),
    repeating-linear-gradient(0deg, rgba(53, 224, 208, 0.045) 0 1px, transparent 1px 76px);
  pointer-events: none;
}

.page-contact .coop-hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4.5vw, 52px);
}

@media (min-width: 900px) {
  .page-contact .coop-hero__inner {
    grid-template-columns: minmax(0, 1.75fr) minmax(250px, 0.75fr);
    align-items: end;
  }
}

.page-contact .coop-hero__lead .eyebrow {
  color: var(--clay);
}

.page-contact .coop-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-contact .coop-hero__ticker {
  display: grid;
  gap: 14px;
  border-left: 2px solid var(--cyan);
  padding-left: 20px;
}

.page-contact .tick {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.page-contact .tick__num {
  color: var(--cyan);
  font-size: 24px;
  line-height: 1;
  letter-spacing: 0.03em;
}

.page-contact .tick__txt {
  color: var(--off-soft);
  font-size: 14px;
  line-height: 1.5;
}

/* ---------- 双栏主体 ---------- */
.page-contact .coop-body__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 4.5vw, 58px);
}

@media (min-width: 1020px) {
  .page-contact .coop-body__grid {
    grid-template-columns: minmax(0, 1.62fr) minmax(300px, 0.88fr);
    align-items: start;
  }
}

.page-contact .coop-body__main {
  display: grid;
  gap: clamp(38px, 5vw, 68px);
}

@media (min-width: 1020px) {
  .page-contact .coop-body__aside {
    position: sticky;
    top: 112px;
  }
}

/* ---------- 合作方向 ---------- */
.page-contact .direction-list {
  display: grid;
  gap: 18px;
  margin-top: 28px;
}

.page-contact .direction {
  position: relative;
  padding: 22px 24px 22px 26px;
  background: linear-gradient(180deg, rgba(14, 27, 42, 0.055), rgba(14, 27, 42, 0.018));
  border: 1px solid var(--c-hair-light);
  border-left-width: 4px;
  clip-path: polygon(0 0, calc(100% - var(--c-cut)) 0, 100% var(--c-cut), 100% 100%, 0 100%);
}

.page-contact .direction--cyan { border-left-color: var(--cyan); }
.page-contact .direction--amber { border-left-color: var(--amber); }
.page-contact .direction--clay { border-left-color: var(--clay); }

.page-contact .direction__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.page-contact .direction__head .h3 {
  margin: 0;
}

.page-contact .direction__body {
  margin-top: 14px;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.78;
  color: rgba(14, 27, 42, 0.82);
}

.page-contact .direction__points {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-contact .direction__points li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(14, 27, 42, 0.66);
}

.page-contact .direction__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 2px;
  background: var(--clay);
}

/* ---------- 合作流程 ---------- */
.page-contact .process-figure {
  margin: 26px 0 0;
}

.page-contact .process-figure .figure__media {
  border: 1px solid var(--c-hair-light);
}

.page-contact .step-list {
  display: grid;
  gap: 12px;
  margin-top: 26px;
}

.page-contact .step {
  padding: 16px 20px;
  background: linear-gradient(180deg, rgba(14, 27, 42, 0.05), rgba(14, 27, 42, 0.015));
  border: 1px solid var(--c-hair-light);
  clip-path: polygon(0 0, calc(100% - var(--c-cut)) 0, 100% var(--c-cut), 100% 100%, 0 100%);
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.page-contact .step[open] {
  background: linear-gradient(180deg, rgba(53, 224, 208, 0.13), rgba(14, 27, 42, 0.03));
  border-color: rgba(53, 224, 208, 0.42);
}

.page-contact .step__summary {
  display: flex;
  align-items: center;
  gap: 14px;
  cursor: pointer;
  list-style: none;
}

.page-contact .step__summary::-webkit-details-marker {
  display: none;
}

.page-contact .step__summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
}

.page-contact .step__num {
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--clay);
}

.page-contact .step__title {
  font-size: 17px;
  font-weight: 700;
  color: rgba(14, 27, 42, 0.9);
}

.page-contact .step__marker {
  margin-left: auto;
  flex: none;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--clay);
  border-bottom: 2px solid var(--clay);
  transform: rotate(45deg);
  transition: transform 0.22s ease;
}

.page-contact .step[open] .step__marker {
  transform: rotate(-135deg);
}

.page-contact .step__body {
  display: grid;
  gap: 12px;
  padding-top: 14px;
}

.page-contact .step__body p {
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(14, 27, 42, 0.78);
}

.page-contact .step__need {
  display: block;
  padding: 12px 14px;
  background: rgba(180, 113, 79, 0.1);
  border-left: 3px solid var(--clay);
  font-size: 14px;
  line-height: 1.7;
  color: rgba(14, 27, 42, 0.72);
}

.page-contact .step__need .mono {
  display: block;
  margin-bottom: 4px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--clay);
}

/* ---------- 反馈卡 ---------- */
.page-contact .feedback-card {
  background: var(--navy-700);
  border: 1px solid var(--c-coral-line);
  clip-path: polygon(
    0 0,
    calc(100% - 24px) 0,
    100% 24px,
    100% calc(100% - 24px),
    calc(100% - 24px) 100%,
    0 100%
  );
  overflow: hidden;
}

.page-contact .feedback-card__media {
  position: relative;
  background: var(--ink);
}

.page-contact .feedback-card__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 800 / 520;
  object-fit: cover;
}

.page-contact .feedback-card__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255, 95, 109, 0.14), transparent 62%);
  pointer-events: none;
}

.page-contact .feedback-card__body {
  padding: 24px 24px 26px;
}

.page-contact .feedback-card__body .h3 {
  margin: 14px 0 0;
  color: var(--off);
  font-size: 22px;
  line-height: 1.42;
}

.page-contact .feedback-card__lead {
  margin-top: 12px;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(243, 239, 231, 0.74);
}

.page-contact .fb-kinds {
  display: grid;
  gap: 12px;
  margin-top: 20px;
}

.page-contact .fb-kind {
  padding: 14px 16px;
  background: rgba(14, 27, 42, 0.55);
  border-left: 3px solid rgba(255, 95, 109, 0.55);
}

.page-contact .fb-kind__tag {
  display: block;
  margin-bottom: 6px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--coral);
}

.page-contact .fb-kind p {
  font-size: 14px;
  line-height: 1.72;
  color: rgba(243, 239, 231, 0.72);
}

.page-contact .feedback-card__foot {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--c-hair-dark);
  font-size: 13px;
  line-height: 1.7;
  color: rgba(243, 239, 231, 0.6);
}

/* ---------- 联系方式 ---------- */
.page-contact .coop-contact {
  position: relative;
}

.page-contact .coop-contact__head {
  max-width: 72ch;
}

.page-contact .coop-contact__head .eyebrow {
  color: var(--cyan);
}

.page-contact .coop-contact__head .lede {
  margin-top: 14px;
  color: rgba(243, 239, 231, 0.72);
}

.page-contact .contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 34px;
}

@media (min-width: 760px) {
  .page-contact .contact-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .contact-item {
  display: grid;
  align-content: start;
  gap: 10px;
  padding: 22px 22px 24px;
  background: rgba(14, 27, 42, 0.58);
  border: 1px solid var(--c-hair-dark);
  border-top-width: 3px;
  clip-path: polygon(0 0, calc(100% - var(--c-cut)) 0, 100% var(--c-cut), 100% 100%, 0 100%);
}

.page-contact .contact-item--amber { border-top-color: var(--amber); }
.page-contact .contact-item--cyan { border-top-color: var(--cyan); }
.page-contact .contact-item--moss { border-top-color: var(--moss-soft); }

.page-contact .contact-item__label {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gray);
}

.page-contact .contact-item__value {
  font-family: var(--font-mono);
  font-size: clamp(20px, 3.2vw, 26px);
  line-height: 1.3;
  letter-spacing: 0.02em;
  color: var(--off);
  word-break: break-word;
}

.page-contact .contact-item__value--long {
  font-size: clamp(15px, 2.1vw, 18px);
  line-height: 1.55;
}

.page-contact .contact-item__note {
  font-size: 14px;
  line-height: 1.72;
  color: rgba(243, 239, 231, 0.66);
}

.page-contact .response-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: 28px;
  background: var(--c-hair-dark);
  border: 1px solid var(--c-hair-dark);
}

@media (min-width: 760px) {
  .page-contact .response-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .response {
  padding: 20px 22px;
  background: var(--ink);
}

.page-contact .response__num {
  display: block;
  font-size: 18px;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-contact .response__txt {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(243, 239, 231, 0.66);
}

/* ---------- 备案 ---------- */
.page-contact .coop-filing {
  padding-block: clamp(28px, 4vw, 48px);
}

.page-contact .filing-card {
  display: grid;
  gap: 12px;
  padding: 20px 22px;
  background: var(--off);
  border: 1px solid rgba(14, 27, 42, 0.22);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
}

.page-contact .filing-card__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 14px;
}

.page-contact .filing-card__label {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gray);
}

.page-contact .filing-card__value {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.04em;
  color: rgba(14, 27, 42, 0.84);
}

.page-contact .filing-card__note {
  font-size: 14px;
  line-height: 1.75;
  color: rgba(14, 27, 42, 0.62);
}

.page-contact .filing-card__link {
  color: rgba(14, 27, 42, 0.86);
  text-decoration: underline;
  text-decoration-color: var(--cyan);
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.page-contact .filing-card__link:hover,
.page-contact .filing-card__link:focus-visible {
  color: var(--ink);
  text-decoration-color: var(--coral);
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .step,
  .page-contact .step__marker {
    transition: none;
  }
}
</PAGE_CSS>