.page-contact {
  --ct-hair: rgba(111, 138, 138, .32);
  --ct-shadow: rgba(30, 80, 86, .22);
  background: var(--paper);
  color: var(--ink-800);
}

.page-contact a:focus-visible,
.page-contact button:focus-visible,
.page-contact summary:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

/* ---------- 首屏 ---------- */

.page-contact .ct-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--ink-900);
  color: var(--paper);
}

.page-contact .ct-hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.page-contact .ct-hero__bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 62%;
  opacity: .32;
}

.page-contact .ct-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(158deg, rgba(7, 26, 29, .3) 0%, rgba(11, 46, 51, .88) 58%, var(--ink-900) 100%);
}

.page-contact .ct-hero__inner {
  position: relative;
  display: grid;
  gap: clamp(30px, 5vw, 52px);
  padding-block: clamp(40px, 7vw, 92px) clamp(44px, 7vw, 88px);
}

.page-contact .ct-hero__vnote {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0;
  font-family: var(--font-data);
  font-size: 10px;
  letter-spacing: .3em;
  color: var(--mist);
}

.page-contact .ct-hero__vnote::before {
  content: "";
  flex: none;
  width: 28px;
  height: 2px;
  background: var(--orange);
}

.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: clamp(18px, 3vw, 30px) 0 clamp(18px, 3vw, 28px);
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--mist);
}

.page-contact .breadcrumb a {
  color: var(--mist-hi);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .breadcrumb a:hover {
  color: var(--orange-2);
  border-bottom-color: var(--orange-2);
}

.page-contact .breadcrumb [aria-current] {
  color: var(--paper);
}

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

.page-contact .ct-hero__word {
  display: block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(82px, 16vw, 206px);
  line-height: .82;
  letter-spacing: -.06em;
  color: var(--paper);
}

.page-contact .ct-hero__tail {
  display: block;
  margin-top: clamp(16px, 2.4vw, 26px);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(14px, 1.5vw, 18px);
  letter-spacing: .1em;
  color: var(--orange-2);
}

.page-contact .ct-hero__deck {
  margin: clamp(18px, 3vw, 28px) 0 0;
  max-width: 32em;
  font-family: var(--font-body);
  font-size: clamp(16px, 1.15vw, 18px);
  line-height: 1.92;
  color: var(--mist-hi);
}

/* 联系信息牌 */

.page-contact .ct-cards {
  display: grid;
  gap: 16px;
  align-content: end;
}

.page-contact .ct-card {
  position: relative;
  padding: 22px 22px 20px;
  background: var(--paper);
  color: var(--ink-800);
  border: 1.5px solid var(--ink-800);
  box-shadow: 5px 5px 0 0 var(--paper-2);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-contact .ct-card:hover {
  transform: translateY(-4px);
  box-shadow: 5px 9px 0 0 var(--orange);
}

.page-contact .ct-card__label {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .24em;
  color: var(--orange);
}

.page-contact .ct-card__value {
  display: block;
  font-family: var(--font-data);
  font-size: clamp(14px, 1.5vw, 18px);
  font-weight: 600;
  letter-spacing: -.01em;
  color: var(--ink-800);
  text-decoration: none;
  overflow-wrap: anywhere;
  word-break: break-word;
  border-bottom: 2px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact a.ct-card__value:hover {
  color: var(--ink-900);
  border-bottom-color: var(--orange);
}

.page-contact .ct-card__value--plain {
  border-bottom: 0;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.7;
  letter-spacing: 0;
}

.page-contact .ct-card__copy {
  margin-top: 14px;
}

.page-contact .ct-card__note {
  margin: 12px 0 0;
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1.78;
  color: var(--ink-600);
}

/* ---------- 合作方向 ---------- */

.page-contact .ct-collab {
  padding-block: clamp(54px, 8vw, 110px);
  background: var(--paper);
  border-bottom: 1px solid var(--ct-hair);
}

.page-contact .ct-collab__title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 5vw, 64px);
  line-height: 1;
  letter-spacing: -.045em;
  color: var(--ink-800);
}

.page-contact .ct-collab__lead {
  margin: clamp(14px, 2vw, 20px) 0 0;
  max-width: 36em;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.9;
  color: var(--ink-600);
}

.page-contact .ct-collab__list {
  list-style: none;
  margin: clamp(28px, 4vw, 46px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .ct-collab__item {
  background: transparent;
  border: 1.5px solid var(--ink-600);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-contact .ct-collab__item:hover {
  border-color: var(--orange);
  box-shadow: 4px 4px 0 0 rgba(242, 106, 46, .18);
}

.page-contact .ct-collab__item[open] {
  border-color: var(--orange);
  background: var(--paper-2);
}

.page-contact .ct-collab__item summary {
  cursor: pointer;
  list-style: none;
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 14px;
  row-gap: 4px;
  align-items: baseline;
  padding: 18px 20px;
}

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

.page-contact .ct-collab__idx {
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--orange);
}

.page-contact .ct-collab__name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 2vw, 22px);
  letter-spacing: -.015em;
  color: var(--ink-800);
}

.page-contact .ct-collab__who {
  grid-column: 2;
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-600);
}

.page-contact .ct-collab__body {
  padding: 0 20px 20px 46px;
}

.page-contact .ct-collab__body p {
  margin: 0 0 10px;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.9;
  color: var(--ink-700);
}

.page-contact .ct-collab__body p:last-child {
  margin-bottom: 0;
}

/* ---------- 客服能帮你什么 ---------- */

.page-contact .ct-help {
  padding-block: clamp(54px, 8vw, 110px);
  background: var(--ink-800);
  color: var(--paper);
  overflow: hidden;
}

.page-contact .ct-help__inner {
  display: grid;
  gap: clamp(32px, 5vw, 56px);
}

.page-contact .ct-help .eyebrow {
  color: var(--mint);
}

.page-contact .ct-help__title {
  margin: 10px 0 0;
  max-width: 15em;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 4.2vw, 54px);
  line-height: 1.06;
  letter-spacing: -.045em;
  color: var(--paper);
}

.page-contact .ct-help__list {
  list-style: none;
  margin: clamp(26px, 4vw, 42px) 0 0;
  padding: 0;
}

.page-contact .ct-help__item {
  padding: 20px 0;
  border-top: 1px solid var(--ct-hair);
}

.page-contact .ct-help__item:last-child {
  border-bottom: 1px solid var(--ct-hair);
}

.page-contact .ct-help__h {
  display: flex;
  gap: 12px;
  align-items: baseline;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(17px, 1.8vw, 20px);
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-contact .ct-help__idx {
  font-family: var(--font-data);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .14em;
  color: var(--mint);
}

.page-contact .ct-help__p {
  margin: 8px 0 0;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.92;
  color: var(--mist-hi);
}

.page-contact .ct-help__p a {
  color: var(--orange-2);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 179, 138, .5);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .ct-help__p a:hover {
  color: var(--paper);
  border-bottom-color: var(--paper);
}

.page-contact .ct-help__media {
  margin: 0;
  position: relative;
}

.page-contact .ct-help__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  filter: saturate(.9);
}

.page-contact .ct-help__media::after {
  content: "";
  position: absolute;
  inset: 14px;
  border: 1.5px solid rgba(242, 106, 46, .72);
  pointer-events: none;
}

.page-contact .ct-help__caption {
  margin-top: 14px;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .14em;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 联系前准备 ---------- */

.page-contact .ct-prepare {
  padding-block: clamp(54px, 8vw, 110px);
  background: var(--paper);
}

.page-contact .ct-prepare__inner {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
}

.page-contact .ct-prepare__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 4.2vw, 54px);
  line-height: 1.06;
  letter-spacing: -.045em;
  color: var(--ink-800);
}

.page-contact .ct-prepare__note {
  margin: clamp(14px, 2vw, 20px) 0 0;
  max-width: 30em;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.9;
  color: var(--ink-600);
}

.page-contact .ct-prepare__note a {
  color: var(--ink-800);
  text-decoration: none;
  border-bottom: 2px solid var(--orange);
  transition: color var(--dur) var(--ease);
}

.page-contact .ct-prepare__note a:hover {
  color: var(--orange);
}

.page-contact .ct-prepare__btn {
  margin-top: clamp(20px, 3vw, 28px);
  display: inline-block;
}

.page-contact .ct-prepare__box {
  background: var(--paper-2);
  border: 1.5px solid var(--ink-800);
  box-shadow: 8px 8px 0 0 var(--ct-shadow);
}

.page-contact .ct-prepare__box summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 22px;
  border-bottom: 1.5px solid var(--ink-600);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(16px, 1.8vw, 20px);
  letter-spacing: -.01em;
  color: var(--ink-800);
}

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

.page-contact .ct-prepare__box summary::after {
  content: "＋";
  flex: none;
  font-family: var(--font-data);
  font-size: 18px;
  font-weight: 600;
  color: var(--orange);
  line-height: 1;
}

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

.page-contact .ct-prepare__list {
  list-style: none;
  margin: 0;
  padding: 22px;
  display: grid;
  gap: 20px;
}

.page-contact .ct-prepare__list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
}

.page-contact .ct-prepare__num {
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .1em;
  line-height: 1.9;
  color: var(--orange);
}

.page-contact .ct-prepare__k {
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  color: var(--ink-800);
}

.page-contact .ct-prepare__v {
  margin: 6px 0 0;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.88;
  color: var(--ink-600);
}

/* ---------- 备案信息带 ---------- */

.page-contact .ct-registry {
  padding-block: clamp(44px, 6vw, 76px);
  background: var(--ink-900);
  color: var(--paper);
}

.page-contact .ct-registry__title {
  margin: 0 0 clamp(20px, 3vw, 30px);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 2vw, 24px);
  letter-spacing: .04em;
  color: var(--paper);
}

.page-contact .ct-registry__list {
  margin: 0;
  border-top: 1px solid var(--ct-hair);
}

.page-contact .ct-registry__row {
  padding: 14px 0;
  border-bottom: 1px solid var(--ct-hair);
}

.page-contact .ct-registry__row dt {
  margin-bottom: 8px;
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .24em;
  color: var(--mist);
}

.page-contact .ct-registry__row dd {
  margin: 0;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .ct-registry__tail {
  margin: clamp(22px, 3vw, 30px) 0 0;
  max-width: 62em;
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.88;
  color: var(--mist);
}

.page-contact .ct-registry__tail a {
  color: var(--mist-hi);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 106, 46, .55);
  padding-bottom: 1px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .ct-registry__tail a:hover {
  color: var(--orange-2);
  border-bottom-color: var(--orange-2);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-contact .ct-collab__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .page-contact .ct-registry__list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border-bottom: 1px solid var(--ct-hair);
  }

  .page-contact .ct-registry__row {
    padding: 18px 20px 18px 0;
    border-bottom: 0;
  }

  .page-contact .ct-registry__row:nth-child(odd) {
    border-right: 1px solid var(--ct-hair);
  }

  .page-contact .ct-registry__row:nth-child(even) {
    padding-left: 20px;
  }
}

@media (min-width: 920px) {
  .page-contact .ct-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4.4fr);
    column-gap: clamp(32px, 6vw, 80px);
    align-items: end;
  }

  .page-contact .ct-hero__vnote {
    grid-column: 1 / -1;
    margin-bottom: clamp(-36px, -2vw, -18px);
  }

  .page-contact .ct-card {
    padding: 24px 26px 22px;
  }

  .page-contact .ct-help__inner {
    grid-template-columns: minmax(0, 1.42fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .ct-help__media {
    margin-top: clamp(24px, 4vw, 56px);
  }

  .page-contact .ct-prepare__inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
    column-gap: clamp(32px, 5vw, 72px);
  }

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

  .page-contact .ct-registry__row {
    border-right: 1px solid var(--ct-hair);
    padding: 20px 22px;
  }

  .page-contact .ct-registry__row:first-child {
    padding-left: 0;
  }

  .page-contact .ct-registry__row:last-child {
    border-right: 0;
    padding-right: 0;
  }
}

@media (min-width: 1240px) {
  .page-contact .ct-hero__inner {
    padding-block: clamp(56px, 6vw, 104px) clamp(56px, 6vw, 96px);
  }

  .page-contact .ct-hero__deck {
    max-width: 30em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-card,
  .page-contact .ct-collab__item,
  .page-contact .ct-collab__item summary,
  .page-contact .ct-card__value,
  .page-contact .breadcrumb a,
  .page-contact .ct-registry__tail a {
    transition: none;
  }

  .page-contact .ct-card:hover {
    transform: none;
  }
}
<<<END>>>