.page-contact {
  --ct-card-bg: #14212b;
  --ct-gold-soft: rgba(224, 166, 60, 0.55);
  --ct-cyan-soft: rgba(52, 227, 194, 0.42);
}

.page-contact .ms-breadcrumb {
  padding-top: 26px;
  font-size: var(--ms-t12);
  letter-spacing: 0.12em;
  color: var(--ms-slate);
}

.page-contact .ms-breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

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

.page-contact .ms-breadcrumb a {
  color: var(--ms-slate);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.16s var(--ms-ease), border-color 0.16s var(--ms-ease);
}

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

.page-contact .ms-breadcrumb [aria-current="page"] {
  color: var(--ms-bone);
}

/* ---------- 首屏 ---------- */

.page-contact .ct-mast {
  position: relative;
  padding: 44px 0 0;
  background-image: linear-gradient(118deg, rgba(23, 53, 44, 0.92) 0%, rgba(23, 53, 44, 0.48) 36%, rgba(6, 11, 18, 0) 66%);
  overflow: hidden;
}

.page-contact .ct-mast::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(34, 50, 60, 0.42) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 50, 60, 0.42) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.55;
  pointer-events: none;
  z-index: 0;
}

.page-contact .ct-mast > .ms-shell {
  position: relative;
  z-index: 1;
}

.page-contact .ct-mast__grid {
  display: grid;
  gap: 30px;
}

.page-contact .ct-mast__copy .ms-h1 {
  margin: 14px 0 0;
}

.page-contact .ct-mast__copy .ms-lede {
  margin-top: 22px;
  max-width: 58ch;
}

.page-contact .ct-mast__media {
  margin: 0;
  position: relative;
  border: 1px solid var(--ms-line);
  background: linear-gradient(135deg, #091820 0%, #17352c 100%);
  overflow: hidden;
}

.page-contact .ct-mast__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(165deg, rgba(6, 11, 18, 0.1) 0%, rgba(6, 11, 18, 0.7) 100%);
  pointer-events: none;
}

.page-contact .ct-mast__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  opacity: 0.82;
}

/* ---------- 通用区块头 ---------- */

.page-contact .ct-head {
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--ms-line);
}

.page-contact .ct-head .ms-h2 {
  margin: 12px 0 0;
}

.page-contact .ms-h2 {
  margin: 12px 0 0;
  font-family: var(--ms-display);
  font-weight: 400;
  font-size: clamp(1.6rem, 5.4vw, 2.6rem);
  line-height: 1.22;
  letter-spacing: 0.01em;
  color: var(--ms-bone);
}

/* ---------- 渠道分屏 ---------- */

.page-contact .ct-split {
  display: grid;
  gap: 30px;
}

.page-contact .ct-cards {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-card {
  position: relative;
  display: grid;
  gap: 10px;
  padding: 24px 22px 26px;
  background: var(--ms-layer);
  border: 1px solid var(--ms-line);
  transition: border-color 0.18s var(--ms-ease), background-color 0.18s var(--ms-ease);
}

.page-contact .ct-card::after {
  content: "";
  position: absolute;
  left: -1px;
  top: -1px;
  width: 0;
  height: 3px;
  background: var(--ms-gold);
  transition: width 0.24s var(--ms-ease);
}

.page-contact .ct-card:hover,
.page-contact .ct-card:focus-within {
  border-color: var(--ct-gold-soft);
  background: var(--ct-card-bg);
}

.page-contact .ct-card:hover::after,
.page-contact .ct-card:focus-within::after {
  width: calc(100% + 2px);
}

.page-contact .ct-card__index {
  margin: 0;
  font-family: var(--ms-mono);
  font-size: var(--ms-t12);
  letter-spacing: 0.2em;
  color: var(--ms-cyan);
}

.page-contact .ct-card__title {
  margin: 0;
  font-family: var(--ms-display);
  font-size: var(--ms-t22);
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--ms-bone);
}

.page-contact .ct-card__value {
  margin: 0;
  font-family: var(--ms-mono);
  font-size: var(--ms-t15);
  font-weight: 500;
  line-height: 1.6;
  color: var(--ms-bone);
  word-break: break-word;
}

.page-contact .ct-card__value a {
  color: var(--ms-cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--ct-cyan-soft);
  transition: border-color 0.16s var(--ms-ease);
}

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

.page-contact .ct-card__desc {
  margin: 0;
  max-width: 60ch;
  font-size: var(--ms-t15);
  line-height: 1.78;
  color: var(--ms-slate);
}

/* ---------- 右侧邮箱锚点 ---------- */

.page-contact .ct-aside {
  display: grid;
  align-content: start;
  background: var(--ms-moss);
  border: 1px solid var(--ms-line);
  overflow: hidden;
}

.page-contact .ct-aside__media {
  position: relative;
  margin: 0;
  background: linear-gradient(135deg, #0a1a20, #17352c);
  overflow: hidden;
}

.page-contact .ct-aside__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(6, 11, 18, 0.15) 0%, rgba(23, 53, 44, 0.88) 100%);
  pointer-events: none;
}

.page-contact .ct-aside__media img {
  display: block;
  width: 100%;
  height: 190px;
  object-fit: cover;
  opacity: 0.55;
}

.page-contact .ct-aside__body {
  display: grid;
  gap: 16px;
  padding: 24px 22px 28px;
}

.page-contact .ct-aside__title {
  margin: 0;
  font-family: var(--ms-display);
  font-size: clamp(1.45rem, 5vw, 2rem);
  font-weight: 400;
  line-height: 1.25;
  color: var(--ms-bone);
}

.page-contact .ct-aside__mail {
  display: inline-block;
  min-height: 44px;
  padding-bottom: 8px;
  font-family: var(--ms-mono);
  font-size: clamp(0.98rem, 3.6vw, 1.32rem);
  font-weight: 600;
  line-height: 1.5;
  color: var(--ms-cyan);
  text-decoration: none;
  word-break: break-word;
  background-image: linear-gradient(var(--ms-cyan), var(--ms-cyan));
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 38% 1px;
  transition: background-size 0.28s var(--ms-ease), color 0.18s var(--ms-ease);
}

.page-contact .ct-aside__mail:hover,
.page-contact .ct-aside__mail:focus-visible {
  background-size: 100% 1px;
}

.page-contact .ct-aside__note {
  margin: 0;
  font-size: var(--ms-t13);
  line-height: 1.8;
  color: rgba(237, 231, 219, 0.72);
}

.page-contact .ct-aside__btn {
  justify-self: start;
}

/* ---------- 准备清单 ---------- */

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

.page-contact .ct-prep__grid {
  display: grid;
  gap: 28px;
}

.page-contact .ct-prep__intro .ms-body {
  margin-top: 18px;
  max-width: 46ch;
}

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

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

.page-contact .ct-step__summary {
  display: flex;
  align-items: center;
  gap: 16px;
  min-height: 60px;
  padding: 14px 0;
  cursor: pointer;
  list-style: none;
  font-size: var(--ms-t17);
  color: var(--ms-bone);
  transition: color 0.18s var(--ms-ease);
}

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

.page-contact .ct-step__summary::marker {
  content: "";
}

.page-contact .ct-step__num {
  flex: none;
  font-family: var(--ms-mono);
  font-size: var(--ms-t13);
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--ms-cyan);
}

.page-contact .ct-step__label {
  flex: 1 1 auto;
  min-width: 0;
}

.page-contact .ct-step__summary::after {
  content: "";
  flex: none;
  width: 9px;
  height: 9px;
  border-right: 1px solid var(--ms-slate);
  border-bottom: 1px solid var(--ms-slate);
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform 0.2s var(--ms-ease), border-color 0.2s var(--ms-ease);
}

.page-contact .ct-step[open] .ct-step__summary::after {
  transform: rotate(-135deg) translate(-2px, -2px);
  border-color: var(--ms-cyan);
}

.page-contact .ct-step__summary:hover,
.page-contact .ct-step__summary:focus-visible {
  color: var(--ms-cyan);
}

.page-contact .ct-step__body {
  padding: 2px 0 22px 40px;
  font-size: var(--ms-t15);
  line-height: 1.82;
  color: var(--ms-slate);
}

.page-contact .ct-step__body p {
  margin: 0;
  max-width: 64ch;
}

/* ---------- 合作方向 ---------- */

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

.page-contact .ct-coop-grid {
  display: grid;
  gap: 1px;
  background: var(--ms-line);
  border: 1px solid var(--ms-line);
}

.page-contact .ct-coop {
  position: relative;
  display: grid;
  align-content: start;
  gap: 12px;
  padding: 28px 24px 30px;
  background: var(--ms-layer);
  transition: background-color 0.18s var(--ms-ease);
}

.page-contact .ct-coop::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 4px;
  height: 0;
  background: var(--ms-cyan);
  transition: height 0.26s var(--ms-ease);
}

.page-contact .ct-coop:hover {
  background: var(--ct-card-bg);
}

.page-contact .ct-coop:hover::before {
  height: 100%;
}

.page-contact .ct-coop .ms-tag {
  justify-self: start;
}

.page-contact .ct-coop__title {
  margin: 0;
  font-family: var(--ms-display);
  font-size: var(--ms-t22);
  font-weight: 500;
  line-height: 1.32;
  color: var(--ms-bone);
}

.page-contact .ct-coop__body {
  margin: 0;
  font-size: var(--ms-t15);
  line-height: 1.8;
  color: var(--ms-slate);
}

.page-contact .ct-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 22px;
  margin-top: 32px;
  padding-top: 22px;
  border-top: 1px solid var(--ms-line);
}

.page-contact .ct-links__lead {
  font-size: var(--ms-t13);
  letter-spacing: 0.04em;
  color: var(--ms-slate);
}

.page-contact .ct-links a {
  position: relative;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  font-size: var(--ms-t15);
  color: var(--ms-bone);
  text-decoration: none;
  border-bottom: 1px solid var(--ms-line);
  transition: color 0.18s var(--ms-ease), border-color 0.18s var(--ms-ease);
}

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

/* ---------- 底部信息 ---------- */

.page-contact .ct-meta__panel {
  position: relative;
  display: grid;
  gap: 32px;
  padding: 34px 24px 36px;
  background: var(--ms-layer);
  border: 1px solid var(--ms-line);
  overflow: hidden;
}

.page-contact .ct-meta__panel::before {
  content: "";
  position: absolute;
  right: -80px;
  top: -50px;
  width: 300px;
  height: 220px;
  background: var(--ms-moss);
  opacity: 0.75;
  transform: skewY(-6deg);
  pointer-events: none;
}

.page-contact .ct-meta__block {
  position: relative;
  z-index: 1;
}

.page-contact .ct-meta__block .ms-h2 {
  margin: 12px 0 0;
}

.page-contact .ct-meta__body {
  margin: 16px 0 0;
  max-width: 54ch;
  font-size: var(--ms-t15);
  line-height: 1.8;
  color: var(--ms-slate);
}

.page-contact .ct-meta__body + .ct-meta__body {
  margin-top: 12px;
}

.page-contact .ct-facts {
  display: grid;
  grid-template-columns: minmax(76px, auto) 1fr;
  gap: 12px 20px;
  margin: 20px 0 0;
  font-size: var(--ms-t15);
}

.page-contact .ct-facts dt {
  font-size: var(--ms-t13);
  letter-spacing: 0.06em;
  color: var(--ms-slate);
}

.page-contact .ct-facts dd {
  margin: 0;
  color: var(--ms-bone);
  word-break: break-word;
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-contact .ct-mast {
    padding-top: 58px;
  }

  .page-contact .ms-breadcrumb {
    padding-top: 32px;
  }

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

  .page-contact .ct-meta__panel {
    padding: 44px 36px 48px;
  }
}

@media (min-width: 960px) {
  .page-contact .ct-mast__grid {
    grid-template-columns: repeat(12, 1fr);
    align-items: end;
    gap: 44px;
  }

  .page-contact .ct-mast__copy {
    grid-column: 1 / span 7;
  }

  .page-contact .ct-mast__media {
    grid-column: 8 / span 5;
  }

  .page-contact .ct-split {
    grid-template-columns: 62fr 38fr;
    gap: 40px;
    align-items: start;
  }

  .page-contact .ct-prep__grid {
    grid-template-columns: 4fr 8fr;
    gap: 52px;
    align-items: start;
  }

  .page-contact .ct-meta__panel {
    grid-template-columns: 1fr 1fr;
    gap: 52px;
    padding: 52px 44px 56px;
  }

  .page-contact .ct-aside__media img {
    height: 220px;
  }

  .page-contact .ct-aside__body {
    padding: 28px 26px 32px;
  }
}

@media (min-width: 1240px) {
  .page-contact .ct-cards {
    gap: 18px;
  }

  .page-contact .ct-card {
    padding: 28px 26px 30px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-card,
  .page-contact .ct-card::after,
  .page-contact .ct-coop,
  .page-contact .ct-coop::before,
  .page-contact .ct-aside__mail,
  .page-contact .ct-step__summary::after,
  .page-contact .ct-links a,
  .page-contact .ms-breadcrumb a {
    transition-duration: 0.001ms;
  }
}
<<<END>>>