.page-contact {
  background: var(--ink);
  color: var(--paper);
  overflow-x: hidden;
}

.page-contact .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: 28px 0 48px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(680px 320px at 88% 8%, var(--cyan-soft), transparent 70%),
    var(--ink);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--cyan) 18%, transparent 18%, transparent 100%);
  opacity: 0.7;
}

.page-contact .contact-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
}

.page-contact .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  color: var(--mist);
}

.page-contact .breadcrumbs__item + .breadcrumbs__item::before {
  content: "›";
  margin-right: 8px;
  color: var(--line-strong);
}

.page-contact .breadcrumbs__link {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-contact .breadcrumbs__link:hover,
.page-contact .breadcrumbs__link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-contact .contact-hero__eyebrow {
  margin: 0 0 14px;
  color: var(--cyan);
}

.page-contact .contact-hero__title {
  margin: 0 0 20px;
  font-size: clamp(32px, 8.4vw, 62px);
  line-height: 1.02;
  letter-spacing: -0.03em;
  font-weight: 900;
  color: var(--paper);
}

.page-contact .contact-hero__br {
  display: none;
}

.page-contact .contact-hero__lead {
  max-width: 34em;
  margin: 0 0 26px;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: var(--dim);
}

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

.page-contact .contact-hero__card {
  background: var(--slate);
  border: 1px solid var(--line-strong);
  border-top: 2px solid var(--cyan);
  padding: 20px;
  border-radius: var(--radius);
}

.page-contact .contact-hero__card-label {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-contact .contact-hero__list {
  margin: 0 0 16px;
  padding: 0;
}

.page-contact .contact-hero__row {
  padding: 10px 0;
  border-bottom: 1px dashed var(--line);
}

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

.page-contact .contact-hero__row dt {
  font-size: var(--fs-12);
  color: var(--mist);
  margin-bottom: 4px;
}

.page-contact .contact-hero__row dd {
  margin: 0;
  font-size: var(--fs-16);
  color: var(--paper);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .contact-hero__row dd .mono {
  color: var(--cyan);
  font-size: var(--fs-14);
}

.page-contact .contact-hero__card-link {
  font-size: var(--fs-14);
}

/* ---------- 合作方向 ---------- */
.page-contact .coop {
  padding: 52px 0 56px;
  background: var(--teal);
  border-bottom: 1px solid var(--line);
}

.page-contact .coop__head {
  max-width: 42em;
  margin-bottom: 30px;
}

.page-contact .coop .eyebrow,
.page-contact .process .eyebrow,
.page-contact .coopfaq .eyebrow {
  margin: 0 0 12px;
  color: var(--cyan);
}

.page-contact .coop__title,
.page-contact .process__title,
.page-contact .coopfaq__title {
  margin: 0 0 14px;
  font-size: clamp(26px, 5.6vw, 40px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  font-weight: 800;
}

.page-contact .coop__intro,
.page-contact .process__intro {
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: var(--dim);
}

.page-contact .coop__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-contact .coop__item {
  position: relative;
  background: var(--slate);
  border: 1px solid var(--line);
  border-top: 2px solid var(--line-strong);
  padding: 22px 20px 24px;
  border-radius: var(--radius);
  transition: transform 200ms ease, border-color 200ms ease, background-color 200ms ease;
}

.page-contact .coop__item:hover,
.page-contact .coop__item:focus-within {
  transform: translateY(-4px);
  border-top-color: var(--cyan);
  background: #1a2f47;
}

.page-contact .coop__no {
  display: block;
  font-size: var(--fs-36);
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--cyan);
  opacity: 0.6;
  margin-bottom: 14px;
}

.page-contact .coop__name {
  margin: 0 0 10px;
  font-size: var(--fs-22);
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--paper);
}

.page-contact .coop__who {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  line-height: 1.7;
  color: var(--amber);
}

.page-contact .coop__text {
  margin: 0 0 16px;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--dim);
}

.page-contact .coop__out {
  margin: 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--paper);
}

.page-contact .coop__out-label {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  color: var(--mist);
  margin-bottom: 4px;
}

.page-contact .coop__foot {
  margin: 26px 0 0;
  padding: 16px 18px;
  border-left: 3px solid var(--orange);
  background: var(--orange-soft);
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--paper);
}

/* ---------- 四步流程 ---------- */
.page-contact .process {
  padding: 52px 0 56px;
  background: var(--ink);
}

.page-contact .process__figure {
  margin: 0 0 32px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--slate);
}

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

.page-contact .process__head {
  max-width: 42em;
  margin-bottom: 28px;
}

.page-contact .process__hint {
  display: none;
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  color: var(--mist);
}

.page-contact .process__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-contact .process__step {
  position: relative;
  padding: 18px 16px 20px 20px;
  background: var(--slate);
  border: 1px solid var(--line);
  border-left: 3px solid var(--line-strong);
  border-radius: var(--radius);
  transition: border-color 200ms ease, background-color 200ms ease;
}

.page-contact .process__step:hover,
.page-contact .process__step:focus-within,
.page-contact .process__step:focus {
  border-left-color: var(--orange);
  background: #1a2f47;
  outline: none;
}

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

.page-contact .process__no {
  display: block;
  font-size: var(--fs-28);
  line-height: 1;
  color: var(--cyan);
  letter-spacing: -0.04em;
  margin-bottom: 12px;
}

.page-contact .process__step--last .process__no {
  color: var(--orange);
}

.page-contact .process__title-step {
  margin: 0 0 10px;
  font-size: var(--fs-18);
  font-weight: 700;
  color: var(--paper);
}

.page-contact .process__text {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--dim);
}

.page-contact .process__more {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 200ms ease-out, opacity 200ms ease-out, margin-top 200ms ease-out;
  margin-top: 0;
}

.page-contact .process__step:hover .process__more,
.page-contact .process__step:focus .process__more,
.page-contact .process__step:focus-within .process__more {
  max-height: 320px;
  opacity: 1;
  margin-top: 16px;
}

.page-contact .process__more-label {
  margin: 0 0 8px;
  padding-top: 12px;
  border-top: 1px dashed var(--line-strong);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-contact .process__more-list {
  margin: 0;
  padding-left: 1.1em;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--paper);
}

.page-contact .process__more-list li {
  margin-bottom: 4px;
}

/* ---------- 联络区（暖沙） ---------- */
.page-contact .channels {
  background: var(--sand);
  color: var(--ink);
  padding: 48px 0 52px;
  border-top: 1px solid var(--ink);
}

.page-contact .channels__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}

.page-contact .channels__eyebrow {
  margin: 0 0 12px;
  color: #5a4a30;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.page-contact .channels__title {
  margin: 0 0 14px;
  font-size: clamp(26px, 5.6vw, 40px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--ink);
}

.page-contact .channels__lead {
  margin: 0 0 28px;
  max-width: 34em;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: #2c3a49;
}

.page-contact .channels__list {
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
}

.page-contact .channels__item {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-top: 1px solid rgba(10, 22, 38, 0.22);
}

.page-contact .channels__item:last-child {
  border-bottom: 1px solid rgba(10, 22, 38, 0.22);
}

.page-contact .channels__icon {
  width: 18px;
  height: 18px;
  margin-top: 6px;
  border: 2px solid var(--ink);
  position: relative;
  flex: none;
}

.page-contact .channels__icon--mail {
  border-radius: 1px;
}

.page-contact .channels__icon--mail::after {
  content: "";
  position: absolute;
  inset: 3px 2px auto 2px;
  height: 8px;
  border-left: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  transform: skewX(-28deg) rotate(-45deg);
  opacity: 0.7;
}

.page-contact .channels__icon--phone {
  border-radius: 50% 50% 2px 2px;
}

.page-contact .channels__icon--pin {
  border-radius: 50% 50% 50% 0;
  transform: rotate(-45deg);
}

.page-contact .channels__label {
  margin: 0 0 6px;
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  color: #5a4a30;
}

.page-contact .channels__value {
  margin: 0 0 8px;
  font-size: clamp(17px, 4.4vw, 28px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  font-weight: 500;
  color: var(--ink);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .channels__note {
  margin: 0;
  max-width: 34em;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: #35485c;
}

.page-contact .channels__tip {
  background: rgba(10, 22, 38, 0.06);
  border: 1px solid rgba(10, 22, 38, 0.25);
  border-left: 3px solid var(--orange);
  padding: 18px;
  margin-bottom: 26px;
}

.page-contact .channels__tip-title {
  margin: 0 0 12px;
  font-size: var(--fs-16);
  font-weight: 700;
  color: var(--ink);
}

.page-contact .channels__tip-list {
  margin: 0 0 12px;
  padding-left: 1.2em;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: #2c3a49;
}

.page-contact .channels__tip-list li {
  margin-bottom: 4px;
}

.page-contact .channels__tip-note {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  line-height: 1.7;
  color: #5a4a30;
}

.page-contact .channels__back {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin: 0;
}

.page-contact .channels__back .btn--ghost {
  border-color: var(--ink);
  color: var(--ink);
}

.page-contact .channels__back .btn--ghost:hover,
.page-contact .channels__back .btn--ghost:focus-visible {
  background: var(--ink);
  color: var(--sand);
}

.page-contact .channels__back .btn--link {
  color: #2c3a49;
}

.page-contact .channels__figure {
  margin: 0;
  border: 1px solid rgba(10, 22, 38, 0.3);
  background: var(--ink);
  overflow: hidden;
}

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

.page-contact .channels__caption {
  padding: 10px 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  line-height: 1.6;
  color: var(--sand);
  background: var(--ink);
}

/* ---------- 合作疑问 ---------- */
.page-contact .coopfaq {
  padding: 52px 0 60px;
  background: var(--ink);
  border-top: 1px solid var(--line);
}

.page-contact .coopfaq__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}

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

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

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

.page-contact .coopfaq__accordion .accordion__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 18px 4px 18px 0;
  background: none;
  border: 0;
  text-align: left;
  font-family: var(--font-sans);
  font-size: var(--fs-18);
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
  cursor: pointer;
}

.page-contact .coopfaq__accordion .accordion__trigger:hover {
  color: var(--cyan);
}

.page-contact .coopfaq__accordion .accordion__trigger:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

.page-contact .coopfaq__accordion .accordion__icon {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
}

.page-contact .coopfaq__accordion .accordion__icon::before,
.page-contact .coopfaq__accordion .accordion__icon::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform 160ms ease, opacity 160ms ease;
}

.page-contact .coopfaq__accordion .accordion__icon::before {
  top: 6px;
  left: 0;
  width: 14px;
  height: 2px;
}

.page-contact .coopfaq__accordion .accordion__icon::after {
  top: 0;
  left: 6px;
  width: 2px;
  height: 14px;
}

.page-contact .coopfaq__accordion .accordion__trigger[aria-expanded="true"] .accordion__icon::after {
  transform: rotate(90deg);
  opacity: 0;
}

.page-contact .coopfaq__accordion .accordion__panel {
  overflow: hidden;
}

.page-contact .coopfaq__accordion .accordion__body {
  padding: 0 0 20px;
  max-width: 34em;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: var(--dim);
}

.page-contact .coopfaq__accordion .accordion__body p {
  margin: 0;
}

.page-contact .coopfaq__aside {
  background: var(--teal);
  border: 1px solid var(--line);
  border-top: 2px solid var(--violet);
  padding: 20px;
}

.page-contact .coopfaq__aside .aside__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.12em;
  color: var(--mist);
}

.page-contact .coopfaq__links {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
}

.page-contact .coopfaq__links li {
  padding: 10px 0;
  border-bottom: 1px dashed var(--line);
}

.page-contact .coopfaq__links li:last-child {
  border-bottom: 0;
}

.page-contact .coopfaq__links a {
  color: var(--paper);
  font-size: var(--fs-14);
  line-height: 1.7;
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
}

.page-contact .coopfaq__links a:hover,
.page-contact .coopfaq__links a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-contact .coopfaq__aside-note {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--dim);
}

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-contact .contact-hero { padding: 36px 0 56px; }
  .page-contact .contact-hero__br { display: inline; }
  .page-contact .contact-hero__lead { font-size: var(--fs-18); }
  .page-contact .contact-hero__card { padding: 24px; }
  .page-contact .channels__tip { padding: 22px; }
  .page-contact .coop__list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 860px) {
  .page-contact .contact-hero { padding: 44px 0 68px; }
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.85fr);
    gap: 52px;
    align-items: start;
  }
  .page-contact .contact-hero__card {
    position: sticky;
    top: 96px;
  }
  .page-contact .coop { padding: 64px 0 68px; }
  .page-contact .coop__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }
  .page-contact .coop__item:nth-child(2) { margin-top: 26px; }
  .page-contact .coop__item:nth-child(3) { margin-top: 52px; }
  .page-contact .process { padding: 64px 0 68px; }
  .page-contact .process__figure { margin-bottom: 40px; }
  .page-contact .process__hint { display: block; }
  .page-contact .process__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    align-items: start;
  }
  .page-contact .process__step {
    min-height: 250px;
    padding: 20px 18px 22px;
  }
  .page-contact .channels { padding: 64px 0 68px; }
  .page-contact .channels__grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.75fr);
    gap: 44px;
    align-items: start;
  }
  .page-contact .channels__figure { margin-top: 42px; }
  .page-contact .coopfaq { padding: 64px 0 72px; }
  .page-contact .coopfaq__grid {
    grid-template-columns: minmax(0, 1.7fr) minmax(0, 0.8fr);
    gap: 44px;
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .coop__item,
  .page-contact .process__step,
  .page-contact .process__more,
  .page-contact .coopfaq__accordion .accordion__icon::before,
  .page-contact .coopfaq__accordion .accordion__icon::after {
    transition: opacity 160ms ease;
  }
  .page-contact .coop__item:hover,
  .page-contact .coop__item:focus-within {
    transform: none;
  }
}