.page-contact {
  --ct-gap: clamp(20px, 3.4vw, 36px);
  --ct-edge: clamp(20px, 4vw, 44px);
  display: block;
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  position: relative;
  padding-block: clamp(28px, 5vw, 56px) clamp(36px, 6vw, 72px);
}

.page-contact .ct-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--cinnabar) 0%, var(--gold) 38%, rgba(201, 162, 39, 0) 86%);
}

.page-contact .ct-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 5vw, 52px);
  align-items: start;
}

.page-contact h1 {
  font-family: var(--font-title);
  font-size: clamp(32px, 7vw, 62px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  font-weight: 900;
  margin: 14px 0 18px;
  color: var(--ink);
}

.page-contact .ct-lede {
  font-family: var(--font-body);
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--ink-2);
  max-width: 34em;
  margin: 0 0 24px;
}

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

.page-contact .ct-facts__item {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate);
}

.page-contact .ct-facts__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 12px;
  height: 1px;
  background: var(--cinnabar);
}

.page-contact .ct-hero__figure {
  margin: 0;
}

.page-contact .ct-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow-paper);
  background: var(--pitch);
}

/* ---------- 玄黑联络块 ---------- */
.page-contact .ct-band {
  padding-block: clamp(10px, 2vw, 20px);
}

.page-contact .ct-dark {
  position: relative;
  background: var(--ink);
  color: var(--paper);
  border: 1px solid var(--ink);
  padding: clamp(26px, 4.4vw, 52px) var(--ct-edge);
  box-shadow: var(--shadow-paper);
}

.page-contact .ct-dark::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 2px;
  height: clamp(48px, 9vw, 96px);
  background: linear-gradient(180deg, var(--gold-lite), rgba(231, 200, 106, 0));
}

.page-contact .ct-dark__eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold-lite);
  margin: 0 0 12px;
}

.page-contact .ct-dark h2 {
  font-family: var(--font-title);
  font-size: clamp(24px, 3.6vw, 34px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 0 0 clamp(22px, 3.4vw, 36px);
  color: var(--paper);
}

.page-contact .ct-dark__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 32px);
}

.page-contact .ct-dark__item {
  display: grid;
  gap: 8px;
  padding-top: 16px;
  border-top: 1px solid var(--line-dark);
}

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

.page-contact .ct-dark__value {
  font-family: var(--font-mono);
  font-size: clamp(14px, 2vw, 18px);
  font-weight: 500;
  color: var(--paper);
  word-break: break-word;
  line-height: 1.5;
}

.page-contact .ct-dark__value--plain {
  font-family: var(--font-body);
  font-weight: 500;
}

.page-contact .ct-dark__note {
  font-size: 12px;
  line-height: 1.75;
  color: var(--paper-2);
  opacity: 0.82;
}

/* ---------- 分流规则 ---------- */
.page-contact .ct-triage h2,
.page-contact .ct-coop h2,
.page-contact .ct-flow h2 {
  font-family: var(--font-title);
  font-size: clamp(24px, 3.6vw, 34px);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 12px 0 18px;
}

.page-contact .ct-prose {
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-2);
  max-width: 34em;
  margin: 0 0 28px;
}

.page-contact .ct-prose--wide {
  max-width: 44em;
}

.page-contact .ct-triage__list {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.page-contact .ct-triage__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-triage__tag {
  justify-self: start;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--gold);
  border: 1px solid var(--gold);
  padding: 3px 10px;
  line-height: 1.4;
}

.page-contact .ct-triage__title {
  font-family: var(--font-title);
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 8px;
}

.page-contact .ct-triage__body p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-2);
  margin: 0;
  max-width: 40em;
}

/* ---------- 合作方向 ---------- */
.page-contact .ct-coop__filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 clamp(22px, 3vw, 32px);
}

.page-contact .ct-coop__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 30px);
}

.page-contact .ct-coop__card {
  position: relative;
  padding: clamp(22px, 3vw, 32px);
  background: var(--paper);
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow-paper);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .ct-coop__card:hover {
  transform: translateY(-2px);
  border-color: var(--gold);
  box-shadow: var(--shadow-paper-hover);
}

.page-contact .ct-coop__no {
  display: block;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
  margin-bottom: 14px;
}

.page-contact .ct-coop__title {
  font-family: var(--font-title);
  font-size: clamp(19px, 2.4vw, 23px);
  font-weight: 800;
  color: var(--ink);
  margin: 0 0 12px;
}

.page-contact .ct-coop__text {
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-2);
  margin: 0 0 20px;
}

.page-contact .ct-coop__details {
  border-top: 1px dashed var(--line);
  padding-top: 14px;
}

.page-contact .ct-coop__details summary {
  cursor: pointer;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--cinnabar);
  list-style: none;
}

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

.page-contact .ct-coop__details summary::after {
  content: " ＋";
  font-weight: 500;
}

.page-contact .ct-coop__details[open] summary::after {
  content: " －";
}

.page-contact .ct-coop__list {
  margin: 12px 0 0;
  padding-left: 18px;
  display: grid;
  gap: 7px;
}

.page-contact .ct-coop__list li {
  font-size: 13px;
  line-height: 1.75;
  color: var(--slate);
}

/* ---------- 申领流程 ---------- */
.page-contact .ct-flow__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4.5vw, 52px);
  align-items: start;
}

.page-contact .ct-flow__steps {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  position: relative;
}

.page-contact .ct-flow__steps::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 10px;
  bottom: 14px;
  width: 1px;
  background: var(--line-strong);
}

.page-contact .ct-flow__step {
  position: relative;
  padding: 0 0 24px 42px;
}

.page-contact .ct-flow__step:last-child {
  padding-bottom: 0;
}

.page-contact .ct-flow__idx {
  position: absolute;
  left: 0;
  top: 1px;
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  font-size: 11px;
  color: var(--paper);
  background: var(--cinnabar);
  border-radius: var(--r-pill);
}

.page-contact .ct-flow__name {
  font-family: var(--font-title);
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 7px;
}

.page-contact .ct-flow__step p {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-2);
  margin: 0;
  max-width: 38em;
}

.page-contact .ct-flow__expect {
  font-size: 13px;
  line-height: 1.8;
  color: var(--slate);
  border-left: 2px solid var(--gold);
  padding-left: 14px;
  margin: 0;
  max-width: 38em;
}

.page-contact .ct-flow__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
  border: 1px solid var(--line-strong);
  background: var(--paper-2);
}

/* ---------- 备案信息条 ---------- */
.page-contact .ct-strip {
  padding-block: clamp(16px, 2.6vw, 28px) clamp(40px, 6vw, 68px);
}

.page-contact .ct-strip__bar {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-top: 3px solid var(--ink);
  padding: clamp(18px, 3vw, 26px) clamp(18px, 3.4vw, 30px);
}

.page-contact .ct-strip__title {
  font-family: var(--font-title);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--ink);
  margin: 0 0 12px;
}

.page-contact .ct-strip__line {
  font-size: 12.5px;
  line-height: 1.85;
  color: var(--slate);
  margin: 0 0 6px;
}

.page-contact .ct-strip__back {
  margin: 14px 0 0;
  font-size: 13px;
  color: var(--slate);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .ct-dark__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(22px, 3vw, 36px);
  }

  .page-contact .ct-dark__item:first-child {
    grid-column: 1 / -1;
  }

  .page-contact .ct-coop__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .ct-coop__card:first-child {
    grid-column: 1 / -1;
  }

  .page-contact .ct-triage__row {
    grid-template-columns: 84px minmax(0, 1fr);
    gap: 20px;
    align-items: start;
  }

  .page-contact .ct-triage__tag {
    justify-self: stretch;
    text-align: center;
  }
}

@media (min-width: 960px) {
  .page-contact .ct-hero__inner {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: center;
  }

  .page-contact .ct-flow__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.78fr);
  }

  .page-contact .ct-flow__media {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }

  .page-contact .ct-coop__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .ct-coop__card:first-child {
    grid-column: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-coop__card {
    transition: none;
  }

  .page-contact .ct-coop__card:hover {
    transform: none;
  }
}