.page-contact {
  --ct-grid: rgba(31, 42, 54, 0.55);
  --ct-pad: clamp(18px, 2.4vw, 32px);
  background: var(--ink);
  color: var(--paper);
}

.page-contact .ct-crumb {
  padding-top: clamp(16px, 2.2vw, 26px);
}

.page-contact .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  margin-right: 10px;
  color: var(--line);
}

.page-contact .breadcrumbs__link {
  color: var(--muted);
  text-decoration: none;
}

.page-contact .breadcrumbs__link:hover {
  color: var(--lime);
}

.page-contact .breadcrumbs__current {
  color: var(--paper);
}

.page-contact .index-label {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--lime);
}

.page-contact .section-title {
  margin: 10px 0 0;
  font-size: clamp(26px, 3.6vw, 46px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--paper);
}

.page-contact .ct-inline-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, 0.45);
}

.page-contact .ct-inline-link:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  padding-top: clamp(20px, 3vw, 40px);
  background-image:
    linear-gradient(var(--ct-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--ct-grid) 1px, transparent 1px);
  background-size: 24px 24px;
  background-position: 0 0;
}

.page-contact .ct-hero__grid {
  display: grid;
  gap: clamp(24px, 3vw, 44px);
  align-items: end;
}

.page-contact .ct-hero__title {
  margin: 14px 0 0;
  font-size: clamp(32px, 6.2vw, 74px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--paper);
}

.page-contact .ct-hero__text {
  margin: clamp(16px, 2vw, 24px) 0 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--paper);
}

.page-contact .ct-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 2.6vw, 32px);
}

.page-contact .ct-hero__panel {
  padding: var(--ct-pad);
  background: var(--panel);
  border-top: 3px solid var(--lime);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  border-left: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-contact .ct-hero__panel-kicker {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-contact .ct-hero__panel-title {
  margin: 0;
  font-size: clamp(20px, 2.2vw, 26px);
  font-weight: 800;
  color: var(--paper);
}

.page-contact .ct-hero__facts {
  margin: 4px 0 0;
  display: grid;
}

.page-contact .ct-hero__fact {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-hero__fact:last-child {
  border-bottom: 0;
}

.page-contact .ct-hero__fact dt {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
  flex: none;
}

.page-contact .ct-hero__fact dd {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.5;
  color: var(--paper);
  text-align: right;
  word-break: break-all;
}

/* ---------- 四类合作 ---------- */
.page-contact .ct-coops-section {
  padding-top: clamp(48px, 7vw, 96px);
}

.page-contact .ct-coops-head {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
  align-items: start;
}

.page-contact .ct-coops-head__note {
  margin: 16px 0 0;
  max-width: 32em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .ct-coops-head__media {
  margin: 0;
}

.page-contact .image-frame__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .image-frame__caption {
  margin-top: 10px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-contact .ct-coops {
  margin-top: clamp(26px, 3.4vw, 44px);
  display: grid;
  gap: 1px;
  background: var(--line);
}

.page-contact .ct-coop {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(20px, 2.4vw, 30px);
  color: var(--paper);
}

.page-contact .ct-coop--teal {
  background: var(--deep-teal);
  padding-top: clamp(24px, 3vw, 40px);
}

.page-contact .ct-coop--indigo {
  background: var(--indigo);
  padding-top: clamp(40px, 5vw, 72px);
}

.page-contact .ct-coop--wine {
  background: var(--wine);
  padding-top: clamp(20px, 2.4vw, 30px);
}

.page-contact .ct-coop--dark {
  background: var(--panel);
  padding-top: clamp(32px, 4vw, 56px);
}

.page-contact .ct-coop__no {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--lime);
}

.page-contact .ct-coop__title {
  margin: 0;
  font-size: clamp(19px, 2vw, 23px);
  line-height: 1.25;
  font-weight: 800;
  color: var(--paper);
}

.page-contact .ct-coop__who {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--paper);
  opacity: 0.72;
}

.page-contact .ct-coop__details {
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid rgba(232, 237, 242, 0.24);
}

.page-contact .ct-coop__details summary {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  list-style: none;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--lime);
}

.page-contact .ct-coop__details summary::-webkit-details-marker {
  display: none;
}

.page-contact .ct-coop__details summary::before {
  content: "";
  flex: none;
  width: 14px;
  height: 2px;
  background: var(--lime);
  transition: width 240ms ease;
}

.page-contact .ct-coop__details[open] summary::before {
  width: 26px;
}

.page-contact .ct-coop__list {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-contact .ct-coop__list li {
  position: relative;
  padding-left: 16px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--paper);
}

.page-contact .ct-coop__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  background: var(--cyan);
}

/* ---------- 流程 ---------- */
.page-contact .ct-process {
  background: var(--deep-teal);
  padding-top: clamp(48px, 7vw, 92px);
  padding-bottom: clamp(48px, 7vw, 92px);
}

.page-contact .ct-process__lede {
  margin: 16px 0 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--paper);
  opacity: 0.82;
}

.page-contact .ct-canvas {
  position: relative;
  margin-top: clamp(28px, 4vw, 54px);
}

.page-contact .ct-canvas__line {
  display: none;
}

.page-contact .ct-steps {
  position: relative;
  z-index: 2;
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: clamp(18px, 2.4vw, 26px);
  counter-reset: step;
}

.page-contact .ct-step {
  padding: 14px 16px 18px;
  background: rgba(5, 7, 10, 0.62);
  border-left: 2px solid var(--lime);
}

.page-contact .ct-step__no {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--lime);
}

.page-contact .ct-step__title {
  margin: 8px 0 8px;
  font-size: clamp(17px, 1.8vw, 21px);
  font-weight: 800;
  color: var(--paper);
}

.page-contact .ct-step__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--paper);
  opacity: 0.86;
}

.page-contact .ct-step__out {
  margin: 12px 0 0;
  font-size: 13px;
  color: var(--muted);
}

.page-contact .ct-step__out span {
  display: inline-block;
  margin-right: 8px;
  padding: 2px 6px;
  border: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-contact .ct-step__time {
  margin: 8px 0 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--lime);
}

.page-contact .ct-process__media {
  margin: clamp(28px, 4vw, 48px) 0 0;
}

/* ---------- 准备清单 ---------- */
.page-contact .ct-prep {
  padding-top: clamp(48px, 7vw, 96px);
}

.page-contact .ct-prep__lede {
  margin: 16px 0 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .ct-prep__grid {
  margin-top: clamp(24px, 3.4vw, 44px);
  display: grid;
  gap: clamp(22px, 3vw, 44px);
}

.page-contact .ct-prep__col {
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.page-contact .ct-prep__title {
  margin: 0 0 16px;
  font-size: clamp(18px, 1.9vw, 22px);
  font-weight: 800;
  color: var(--paper);
}

.page-contact .ct-prep__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
  counter-reset: prep;
}

.page-contact .ct-prep__list li {
  position: relative;
  padding-left: 34px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--paper);
}

.page-contact .ct-prep__list li::before {
  counter-increment: prep;
  content: counter(prep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.28em;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--lime);
}

.page-contact .ct-prep__freq {
  margin: 20px 0 0;
  padding: 14px 16px;
  background: var(--panel);
  border-left: 2px solid var(--orange);
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--paper);
}

/* ---------- 合作生态 ---------- */
.page-contact .ct-eco {
  background: var(--indigo);
  padding-top: clamp(48px, 7vw, 92px);
  padding-bottom: clamp(48px, 7vw, 92px);
}

.page-contact .ct-eco__grid {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  align-items: start;
}

.page-contact .ct-eco__text {
  margin: 16px 0 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper);
  opacity: 0.86;
}

.page-contact .ct-eco__stats {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: rgba(232, 237, 242, 0.16);
}

.page-contact .ct-eco__stat {
  padding: clamp(16px, 2.2vw, 26px);
  background: var(--indigo);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-contact .ct-eco__num {
  font-family: var(--mono);
  font-size: clamp(30px, 4.4vw, 52px);
  line-height: 1;
  font-weight: 600;
  color: var(--lime);
}

.page-contact .ct-eco__unit {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-contact .ct-eco__label {
  margin-top: 6px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--paper);
}

/* ---------- 联系信息板 ---------- */
.page-contact .ct-channels {
  background: var(--wine);
  padding-top: clamp(48px, 7vw, 92px);
  padding-bottom: clamp(48px, 7vw, 92px);
}

.page-contact .ct-channels__lede {
  margin: 16px 0 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper);
  opacity: 0.86;
}

.page-contact .ct-board {
  margin: clamp(26px, 3.4vw, 46px) 0 0;
}

.page-contact .ct-board__row {
  display: grid;
  gap: 6px;
  padding: clamp(16px, 2vw, 24px) 0;
  border-bottom: 1px solid rgba(232, 237, 242, 0.2);
}

.page-contact .ct-board__label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-contact .ct-board__value {
  margin: 0;
  font-size: clamp(15px, 1.9vw, 20px);
  line-height: 1.5;
  color: var(--paper);
  word-break: break-word;
}

.page-contact .ct-board__value--key {
  font-family: var(--mono);
  font-size: clamp(19px, 3vw, 38px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--lime);
}

/* ---------- 常见问题 ---------- */
.page-contact .ct-faq {
  padding-top: clamp(48px, 7vw, 96px);
  padding-bottom: clamp(56px, 8vw, 104px);
}

.page-contact .ct-faq__list {
  margin-top: clamp(24px, 3vw, 40px);
  border-top: 1px solid var(--line);
}

.page-contact .ct-faq__item {
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-faq__item summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: clamp(16px, 2vw, 22px) 0;
  cursor: pointer;
  list-style: none;
  font-size: clamp(15px, 1.7vw, 18px);
  font-weight: 700;
  color: var(--paper);
}

.page-contact .ct-faq__item summary::-webkit-details-marker {
  display: none;
}

.page-contact .ct-faq__item summary::before {
  content: "";
  flex: none;
  width: 14px;
  height: 2px;
  background: var(--muted);
  transition: width 240ms ease, background 240ms ease;
}

.page-contact .ct-faq__item[open] summary::before {
  width: 26px;
  background: var(--lime);
}

.page-contact .ct-faq__item p {
  margin: 0 0 clamp(18px, 2vw, 24px);
  padding-left: 26px;
  max-width: 40em;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-contact .ct-coops {
    grid-template-columns: 1.25fr 1fr 1.1fr 0.85fr;
  }

  .page-contact .ct-board__row {
    grid-template-columns: 160px minmax(0, 1fr);
    align-items: baseline;
    gap: clamp(16px, 3vw, 40px);
  }
}

@media (min-width: 900px) {
  .page-contact .ct-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  }

  .page-contact .ct-coops-head {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-contact .ct-prep__grid {
    grid-template-columns: 1.1fr 0.9fr;
  }

  .page-contact .ct-eco__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  }

  .page-contact .ct-canvas__line {
    display: block;
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
  }

  .page-contact .ct-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .ct-step:nth-child(1) {
    margin-top: 110px;
  }

  .page-contact .ct-step:nth-child(2) {
    margin-top: 74px;
  }

  .page-contact .ct-step:nth-child(3) {
    margin-top: 38px;
  }

  .page-contact .ct-step:nth-child(4) {
    margin-top: 0;
  }
}

@media (min-width: 1180px) {
  .page-contact .ct-board__row {
    grid-template-columns: 200px minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-coop__details summary::before,
  .page-contact .ct-faq__item summary::before {
    transition: none;
  }
}
<<<END>>>