.page-contact {
  --ct-rule: rgba(122, 138, 134, .30);
  --ct-dim: rgba(232, 223, 203, .74);
  --ct-glow: rgba(63, 224, 200, .55);
  position: relative;
  overflow-x: hidden;
  background: var(--ld-deep);
  color: var(--ld-sand);
}

.page-contact .ld-section {
  padding: clamp(56px, 9vw, 132px) 0;
}

.ct-crumb {
  padding-top: clamp(20px, 3vw, 36px);
}

.ct-head {
  max-width: 62ch;
}

/* ---------- 首屏框景 ---------- */

.ct-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(48px, 8vw, 118px) 0 clamp(56px, 9vw, 132px);
  border-bottom: 1px solid var(--ct-rule);
}

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

.ct-hero__bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .32;
  filter: saturate(.72) contrast(1.06);
}

.ct-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(112% 82% at 80% 6%, rgba(240, 200, 121, .22), rgba(14, 42, 37, 0) 62%),
    linear-gradient(180deg, rgba(14, 42, 37, .34) 0%, rgba(14, 42, 37, .84) 58%, var(--ld-deep) 100%);
}

.ct-hero::after {
  content: "";
  position: absolute;
  inset: clamp(14px, 3vw, 42px);
  border: 1px solid rgba(122, 138, 134, .22);
  pointer-events: none;
}

.ct-hero__scale {
  position: absolute;
  left: clamp(14px, 3vw, 42px);
  right: clamp(14px, 3vw, 42px);
  bottom: clamp(14px, 3vw, 42px);
  height: 8px;
  background-image: repeating-linear-gradient(90deg, rgba(122, 138, 134, .42) 0 1px, transparent 1px 26px);
  pointer-events: none;
}

.ct-hero__inner {
  position: relative;
  z-index: 1;
}

.ct-hero__title {
  margin: clamp(16px, 2.4vw, 28px) 0 0;
  max-width: 17ch;
  font-family: var(--ld-font-narrow);
  font-weight: 200;
  font-size: clamp(34px, 6vw, 88px);
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--ld-salt);
  text-shadow: 0 1px 0 rgba(10, 26, 24, .35);
}

.ct-hero__lede {
  margin: clamp(22px, 3vw, 34px) 0 0;
  max-width: 60ch;
  font-size: clamp(16px, 1.3vw, 18px);
  line-height: 1.85;
  color: var(--ld-sand);
}

/* ---------- 需求分类标签 ---------- */

.ct-tabs {
  margin-top: clamp(30px, 4.6vw, 56px);
}

.ct-tabs__bar {
  display: flex;
  flex-wrap: wrap;
  gap: 1px;
  border: 1px solid var(--ct-rule);
  background: var(--ct-rule);
}

.ct-tabs__btn {
  flex: 1 1 190px;
  min-height: 58px;
  padding: 16px 20px;
  background: var(--ld-deep);
  border: 0;
  color: var(--ld-sand);
  font-family: var(--ld-font-sans);
  font-size: 15px;
  letter-spacing: .04em;
  text-align: left;
  cursor: pointer;
  transition: color .18s var(--ld-ease), background-color .18s var(--ld-ease), box-shadow .18s var(--ld-ease);
}

.ct-tabs__btn:hover {
  color: var(--ld-pulse);
}

.ct-tabs__btn:focus-visible {
  outline: 1px solid var(--ld-pulse);
  outline-offset: -3px;
}

.ct-tabs__btn[aria-selected="true"] {
  background: rgba(216, 166, 75, .10);
  color: var(--ld-gold);
  box-shadow: inset 0 -2px 0 var(--ld-gold);
}

.ct-tabs__panel {
  display: block;
  padding: clamp(26px, 4vw, 48px) 0 0;
}

.ct-tabs__panel[hidden] {
  display: none;
}

.ct-path {
  display: grid;
  gap: clamp(22px, 3.4vw, 48px);
}

.ct-path__col {
  border-top: 1px solid var(--ct-rule);
  padding-top: 20px;
}

.ct-path__h {
  margin: 0 0 10px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .12em;
  color: var(--ld-pulse);
}

.ct-path__col p {
  margin: 0;
  max-width: 54ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ct-dim);
}

/* ---------- 坐标卡 ---------- */

.ct-coords__grid {
  display: grid;
  gap: 1px;
  margin-top: clamp(30px, 4.6vw, 58px);
  background: var(--ct-rule);
  border: 1px solid var(--ct-rule);
}

.ct-coord {
  position: relative;
  padding: clamp(24px, 3.4vw, 40px);
  background: var(--ld-deep);
  transition: background-color .18s var(--ld-ease), box-shadow .18s var(--ld-ease);
}

.ct-coord:hover,
.ct-coord:focus-within {
  background: rgba(27, 35, 64, .58);
  box-shadow: inset 0 0 0 1px var(--ct-glow);
}

.ct-coord__idx {
  margin: 0 0 22px;
  font-family: var(--ld-font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--ld-gray);
}

.ct-coord__name {
  margin: 0;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: .1em;
  color: var(--ld-sand);
}

.ct-coord__value {
  margin: 14px 0 0;
  font-family: var(--ld-font-mono);
  font-weight: 500;
  font-size: clamp(15px, 1.5vw, 19px);
  line-height: 1.5;
  letter-spacing: .02em;
  color: var(--ld-gold);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.ct-coord__use {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--ct-rule);
  font-size: 15px;
  line-height: 1.8;
  color: var(--ct-dim);
}

/* ---------- 响应节奏 ---------- */

.ct-response__grid {
  display: grid;
  gap: clamp(32px, 5vw, 72px);
}

.ct-response__text {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ct-dim);
}

.ct-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--ct-rule);
}

.ct-step {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 0 18px;
  padding: 22px 0;
  border-bottom: 1px solid var(--ct-rule);
}

.ct-step__no {
  grid-row: 1 / span 2;
  padding-top: 4px;
  font-family: var(--ld-font-mono);
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--ld-pulse);
}

.ct-step__h {
  margin: 0;
  font-size: 17px;
  font-weight: 500;
  color: var(--ld-salt);
}

.ct-step__p {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ct-dim);
}

/* ---------- 斜切工单带 ---------- */

.ct-slip {
  margin-top: clamp(44px, 6vw, 88px);
  overflow: hidden;
}

.ct-slip__band {
  position: relative;
  padding: clamp(44px, 7vw, 92px) 0;
  background: linear-gradient(102deg, rgba(27, 35, 64, .94) 0%, rgba(14, 42, 37, .96) 56%, rgba(10, 26, 24, .99) 100%);
  border-top: 1px solid var(--ld-line-gold);
  border-bottom: 1px solid var(--ct-rule);
  transform: skewY(-1.8deg);
}

.ct-slip__wave {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 56px;
  opacity: .5;
}

.ct-slip__wave path {
  fill: none;
  stroke: var(--ld-pulse);
  stroke-width: 1.2;
  vector-effect: non-scaling-stroke;
}

.ct-slip__inner {
  position: relative;
  transform: skewY(1.8deg);
  max-width: 64ch;
}

.ct-slip__title {
  margin: clamp(14px, 2vw, 22px) 0 0;
  font-family: var(--ld-font-narrow);
  font-weight: 300;
  font-size: clamp(24px, 3.4vw, 44px);
  line-height: 1.16;
  letter-spacing: -.01em;
  color: var(--ld-salt);
}

.ct-slip__text {
  margin: clamp(16px, 2vw, 24px) 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ct-dim);
}

/* ---------- 提交清单 ---------- */

.ct-checklist__grid {
  display: grid;
  gap: clamp(30px, 5vw, 68px);
}

.ct-checklist__text {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  max-width: 44ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ct-dim);
}

.ct-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--ct-rule);
}

.ct-list__item {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 0 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--ct-rule);
}

.ct-list__no {
  font-family: var(--ld-font-mono);
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--ld-gold);
  padding-top: 3px;
}

.ct-list__body {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ld-sand);
}

.ct-checklist__foot {
  margin: clamp(28px, 4vw, 44px) 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ct-dim);
}

.ct-checklist__foot a {
  color: var(--ld-pulse);
  text-decoration: none;
  border-bottom: 1px solid var(--ct-glow);
  transition: color .18s var(--ld-ease), border-color .18s var(--ld-ease);
}

.ct-checklist__foot a:hover {
  color: var(--ld-gold);
  border-bottom-color: var(--ld-line-gold);
}

/* ---------- 合作方向 ---------- */

.ct-partner__grid {
  display: grid;
  gap: clamp(30px, 5vw, 64px);
}

.ct-partner__media {
  margin: 0;
}

.ct-partner__frame {
  overflow: hidden;
  border: 1px solid var(--ct-rule);
}

.ct-partner__frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.8) contrast(1.04);
}

.ct-partner__text {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  max-width: 52ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ct-dim);
}

.ct-partner__list {
  list-style: none;
  margin: clamp(26px, 3.6vw, 40px) 0 0;
  padding: 0;
}

.ct-partner__item {
  padding: 20px 0;
  border-top: 1px solid var(--ct-rule);
}

.ct-partner__item:last-child {
  border-bottom: 1px solid var(--ct-rule);
}

.ct-partner__h {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 500;
  color: var(--ld-gold);
}

.ct-partner__item p {
  margin: 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ct-dim);
}

.ct-partner__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: clamp(28px, 3.6vw, 42px) 0 0;
}

/* ---------- 响应式 ---------- */

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

  .ct-crumb {
    padding-top: clamp(24px, 3vw, 40px);
  }
}

@media (min-width: 960px) {
  .ct-coords__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .ct-response__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .ct-checklist__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .ct-partner__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    align-items: start;
  }

  .ct-hero__title {
    max-width: 15ch;
  }
}

@media (max-width: 719px) {
  .ct-coord__value {
    font-size: 15px;
  }

  .ct-slip__band {
    transform: skewY(-1.2deg);
  }

  .ct-slip__inner {
    transform: skewY(1.2deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact * {
    transition: none !important;
  }

  .ct-slip__band,
  .ct-slip__inner {
    transform: none;
  }
}
<<<END>>>