.page-contact {
  --contact-sheen: linear-gradient(180deg, rgba(242, 199, 110, .98), rgba(217, 164, 65, .98));
  background: var(--deep);
  color: var(--foam);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: 28px 0 48px;
  background:
    radial-gradient(760px 380px at 88% -14%, rgba(217, 164, 65, .22), transparent 68%),
    radial-gradient(520px 300px at 4% 110%, rgba(40, 215, 192, .12), transparent 70%),
    linear-gradient(158deg, #0C2539 0%, #071A2B 56%, #05131F 100%);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  top: -34%;
  right: -22%;
  width: 58%;
  height: 190%;
  pointer-events: none;
  transform: rotate(13deg);
  border-left: 1px solid rgba(217, 164, 65, .3);
  background: linear-gradient(180deg, rgba(242, 199, 110, .13), rgba(40, 215, 192, .05) 62%, transparent);
}

.page-contact .contact-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 30px;
}

.page-contact .contact-hero__lead h1 {
  margin: 10px 0 16px;
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(2rem, 5.4vw, 3.35rem);
  line-height: 1.16;
  letter-spacing: -.012em;
  background: linear-gradient(178deg, #FFF8EA 0%, var(--gold-lit) 54%, var(--gold) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-contact .contact-hero__intro {
  max-width: 40em;
  margin: 0;
  font-size: 1rem;
  line-height: 1.85;
  color: #D6E1E8;
}

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

.page-contact .contact-hero__slip {
  position: relative;
  padding: 22px 20px 20px;
  border: 1px solid var(--line-strong);
  background: linear-gradient(180deg, rgba(13, 43, 69, .94), rgba(7, 26, 43, .96));
}

.page-contact .contact-hero__slip::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 46px;
  height: 3px;
  background: var(--contact-sheen);
}

.page-contact .contact-hero__slip-title {
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: .78rem;
  letter-spacing: .18em;
  color: var(--gold-lit);
}

.page-contact .contact-hero__slip-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-contact .contact-hero__slip-list li {
  position: relative;
  padding-left: 18px;
  font-size: .94rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .contact-hero__slip-list strong {
  color: var(--foam);
  font-weight: 600;
}

.page-contact .contact-hero__dot {
  position: absolute;
  left: 0;
  top: .62em;
  width: 7px;
  height: 7px;
  background: var(--gold);
  transform: rotate(45deg);
}

.page-contact .contact-hero__slip-foot {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: .78rem;
  letter-spacing: .06em;
  color: var(--teal);
}

/* ---------- 区块通用 ---------- */
.page-contact .section {
  padding: 52px 0;
}

.page-contact .section--tight {
  padding: 40px 0;
  border-top: 1px solid var(--line);
}

.page-contact .section-head {
  margin-bottom: 26px;
}

.page-contact .section-head h2 {
  margin: 8px 0 10px;
  font-family: var(--serif);
  font-size: clamp(1.5rem, 3.6vw, 2.25rem);
  font-weight: 900;
  line-height: 1.3;
  color: var(--foam);
}

.page-contact .section-head__desc {
  max-width: 46em;
  margin: 0;
  font-size: .96rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .eyebrow {
  margin: 0;
}

/* ---------- 合作类型选择器 ---------- */
.page-contact .coop-tabs {
  display: grid;
  gap: 22px;
}

.page-contact .coop-tabs__list {
  display: grid;
  gap: 10px;
}

.page-contact .coop-tab {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "index label"
    "index meta";
  gap: 2px 14px;
  align-items: baseline;
  width: 100%;
  min-height: 68px;
  padding: 14px 16px 14px 16px;
  text-align: left;
  cursor: pointer;
  border: 1px solid var(--line);
  border-left: 2px solid transparent;
  background: rgba(13, 43, 69, .58);
  color: var(--foam);
  font-family: var(--sans);
  transition: background .28s var(--ease), border-color .28s var(--ease), transform .28s var(--ease);
}

.page-contact .coop-tab:hover {
  background: rgba(13, 43, 69, .92);
  border-left-color: rgba(217, 164, 65, .6);
}

.page-contact .coop-tab:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}

.page-contact .coop-tab[aria-selected="true"] {
  border-left-color: var(--gold);
  border-color: var(--line-strong);
  background: linear-gradient(92deg, rgba(217, 164, 65, .2), rgba(13, 43, 69, .9) 62%);
  box-shadow: inset 0 -2px 0 rgba(40, 215, 192, .55);
}

.page-contact .coop-tab__index {
  grid-area: index;
  font-family: var(--mono);
  font-size: 1.5rem;
  line-height: 1;
  color: var(--gold);
  opacity: .85;
}

.page-contact .coop-tab[aria-selected="true"] .coop-tab__index {
  color: var(--gold-lit);
  opacity: 1;
}

.page-contact .coop-tab__label {
  grid-area: label;
  font-family: var(--serif);
  font-size: 1.06rem;
  font-weight: 700;
  letter-spacing: .01em;
}

.page-contact .coop-tab__meta {
  grid-area: meta;
  font-size: .82rem;
  color: var(--mist);
}

.page-contact .coop-tabs__panels {
  display: grid;
  gap: 16px;
}

.page-contact .coop-panel {
  padding: 24px 20px;
  border: 1px solid var(--line);
  background: linear-gradient(162deg, rgba(13, 43, 69, .92), rgba(7, 26, 43, .95));
}

.page-contact .coop-panel h3 {
  margin: 0 0 12px;
  font-family: var(--serif);
  font-size: 1.24rem;
  font-weight: 800;
  line-height: 1.4;
  color: var(--gold-lit);
}

.page-contact .coop-panel p {
  margin: 0 0 16px;
  font-size: .95rem;
  line-height: 1.85;
  color: #D3DFE7;
}

.page-contact .coop-panel__facts {
  display: grid;
  gap: 12px;
  margin: 0 0 6px;
  padding: 16px 0 4px;
  border-top: 1px solid var(--line);
}

.page-contact .coop-panel__fact dt {
  margin-bottom: 4px;
  font-family: var(--mono);
  font-size: .74rem;
  letter-spacing: .14em;
  color: var(--coral);
}

.page-contact .coop-panel__fact dd {
  margin: 0;
  font-size: .92rem;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .coop-panel__link {
  margin: 14px 0 0 !important;
}

.page-contact .coop-link {
  display: inline-block;
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(40, 215, 192, .5);
  color: var(--teal);
  font-size: .92rem;
  text-decoration: none;
  transition: color .24s var(--ease), border-color .24s var(--ease);
}

.page-contact .coop-link:hover {
  color: var(--gold-lit);
  border-bottom-color: var(--gold-lit);
}

/* ---------- 流程 ---------- */
.page-contact .process-figure {
  margin: 0 0 26px;
  border: 1px solid var(--line);
}

.page-contact .process-figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

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

.page-contact .flow__item {
  position: relative;
  padding: 20px 18px 22px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(13, 43, 69, .6), rgba(7, 26, 43, .35));
}

.page-contact .flow__item::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 52px;
  height: 2px;
  background: var(--contact-sheen);
}

.page-contact .flow__num {
  display: block;
  margin-bottom: 10px;
  font-family: var(--mono);
  font-size: 2.1rem;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px var(--gold);
}

.page-contact .flow__title {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--foam);
}

.page-contact .flow__item p {
  margin: 0;
  font-size: .9rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .quick-links {
  display: grid;
  gap: 10px;
  margin-top: 26px;
}

.page-contact .quick-links__item {
  display: grid;
  gap: 3px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-left: 2px solid rgba(40, 215, 192, .55);
  text-decoration: none;
  background: rgba(13, 43, 69, .44);
  transition: border-color .26s var(--ease), background .26s var(--ease), transform .26s var(--ease);
}

.page-contact .quick-links__item:hover {
  border-left-color: var(--gold);
  background: rgba(13, 43, 69, .85);
  transform: translateY(-2px);
}

.page-contact .quick-links__item:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}

.page-contact .quick-links__label {
  font-family: var(--serif);
  font-size: 1rem;
  font-weight: 700;
  color: var(--gold-lit);
}

.page-contact .quick-links__desc {
  font-size: .86rem;
  line-height: 1.65;
  color: var(--mist);
}

/* ---------- 联系 ---------- */
.page-contact .reach {
  display: grid;
  gap: 24px;
}

.page-contact .reach__visual {
  margin: 0;
  border: 1px solid var(--line);
}

.page-contact .reach__visual img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .reach__card {
  position: relative;
  padding: 24px 20px;
  border: 1px solid var(--line-strong);
  background:
    radial-gradient(420px 200px at 100% 0%, rgba(217, 164, 65, .16), transparent 70%),
    linear-gradient(180deg, rgba(13, 43, 69, .95), rgba(7, 26, 43, .96));
}

.page-contact .reach__card h2 {
  margin: 8px 0 18px;
  font-family: var(--serif);
  font-size: clamp(1.4rem, 3.4vw, 2rem);
  font-weight: 900;
  line-height: 1.32;
  color: var(--foam);
}

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

.page-contact .reach__row {
  display: grid;
  gap: 3px;
  padding: 13px 0;
  border-top: 1px solid var(--line);
}

.page-contact .reach__row:last-child {
  border-bottom: 1px solid var(--line);
}

.page-contact .reach__key {
  font-family: var(--mono);
  font-size: .74rem;
  letter-spacing: .16em;
  color: var(--coral);
}

.page-contact .reach__val {
  font-family: var(--mono);
  font-size: .95rem;
  line-height: 1.6;
  color: var(--foam);
  word-break: break-word;
}

.page-contact .reach__note {
  margin: 16px 0 0;
  padding-left: 14px;
  border-left: 2px solid rgba(242, 107, 74, .6);
  font-size: .88rem;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 服务范围 ---------- */
.page-contact #footprint {
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(2, 10, 18, .55), transparent 60%);
}

.page-contact .footprint {
  display: grid;
  gap: 14px;
}

.page-contact .footprint__cell {
  padding: 20px 18px;
  border: 1px solid var(--line);
  background: rgba(13, 43, 69, .5);
}

.page-contact .footprint__num {
  font-family: var(--serif);
  font-size: 2.6rem;
  font-weight: 900;
  line-height: 1;
  color: var(--gold-lit);
}

.page-contact .footprint__unit {
  margin-left: 4px;
  font-family: var(--mono);
  font-size: .82rem;
  color: var(--mist);
}

.page-contact .footprint__label {
  margin: 10px 0 0;
  font-size: .9rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .footprint__note {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
  max-width: 52em;
  font-size: .9rem;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 常见问题 ---------- */
.page-contact .faq {
  display: grid;
  gap: 10px;
  border-top: 1px solid var(--line);
}

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

.page-contact .faq__trigger {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  min-height: 56px;
  padding: 16px 4px;
  cursor: pointer;
  border: 0;
  background: transparent;
  color: var(--foam);
  font-family: var(--serif);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.55;
  text-align: left;
}

.page-contact .faq__trigger::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--mono);
  font-size: 1.15rem;
  line-height: 1;
  color: var(--gold);
  transition: transform .26s var(--ease), color .26s var(--ease);
}

.page-contact .faq__trigger:hover {
  color: var(--gold-lit);
}

.page-contact .faq__trigger:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}

.page-contact .faq__trigger[aria-expanded="true"]::after {
  content: "–";
  color: var(--teal);
}

.page-contact .faq__panel p {
  margin: 0;
  padding: 0 4px 18px;
  max-width: 60em;
  font-size: .93rem;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .contact-hero {
    padding: 40px 0 60px;
  }

  .page-contact .section {
    padding: 68px 0;
  }

  .page-contact .section--tight {
    padding: 54px 0;
  }

  .page-contact .coop-tab {
    padding: 17px 20px;
  }

  .page-contact .coop-panel {
    padding: 30px 28px;
  }

  .page-contact .coop-panel__facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .page-contact .flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-contact .quick-links {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
  }

  .page-contact .footprint {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-contact .reach__card {
    padding: 30px 28px;
  }

  .page-contact .reach__row {
    grid-template-columns: 88px minmax(0, 1fr);
    align-items: baseline;
    gap: 14px;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: end;
    gap: 56px;
  }

  .page-contact .contact-hero__slip {
    margin-bottom: 6px;
  }

  .page-contact .coop-tabs {
    grid-template-columns: minmax(240px, 304px) minmax(0, 1fr);
    gap: 34px;
    align-items: start;
  }

  .page-contact .coop-tabs__list {
    position: sticky;
    top: 96px;
  }

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

  .page-contact .flow__item {
    border: 0;
    border-top: 1px solid var(--line);
    padding: 22px 20px 24px 0;
    background: transparent;
  }

  .page-contact .flow__item + .flow__item {
    padding-left: 22px;
    border-left: 1px solid var(--line);
  }

  .page-contact .reach {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
    gap: 48px;
    align-items: start;
  }

  .page-contact .reach__card {
    position: sticky;
    top: 96px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .coop-tab,
  .page-contact .quick-links__item,
  .page-contact .faq__trigger::after,
  .page-contact .coop-link {
    transition: none;
  }

  .page-contact .quick-links__item:hover {
    transform: none;
  }
}