.page-contact {
  --ct-cut: 14px;
  --ct-hair: rgba(53, 230, 255, .24);
  --ct-gap: clamp(24px, 3vw, 40px);
  padding-bottom: clamp(44px, 7vw, 96px);
}

/* ---------- 首屏框景 ---------- */
.page-contact .ct-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--lr-line);
  background: linear-gradient(158deg, #0A0E22 0%, #131A38 56%, #0E2A34 100%);
}

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

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

.page-contact .ct-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(92deg, rgba(10, 14, 34, .95) 0%, rgba(10, 14, 34, .66) 50%, rgba(10, 14, 34, .88) 100%),
    radial-gradient(circle at 84% 16%, rgba(139, 92, 255, .38), transparent 58%);
}

.page-contact .ct-hero__inner {
  position: relative;
  z-index: 1;
  padding: clamp(26px, 4vw, 42px) 0 clamp(42px, 6vw, 78px);
}

.page-contact .ct-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--lr-mist);
  margin-bottom: clamp(22px, 4vw, 44px);
}

.page-contact .ct-crumb a {
  color: var(--lr-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 255, .35);
}

.page-contact .ct-crumb a:hover {
  color: var(--lr-cyan-soft);
}

.page-contact .ct-crumb span[aria-hidden] {
  color: rgba(154, 166, 200, .5);
}

.page-contact .ct-hero__title {
  font-family: var(--lr-font-display);
  font-weight: 300;
  font-size: clamp(32px, 6vw, 76px);
  line-height: 1.1;
  letter-spacing: .05em;
  color: var(--lr-white);
  margin: 16px 0 20px;
  max-width: 22em;
}

.page-contact .ct-hero__lede {
  color: var(--lr-mist);
  max-width: 62ch;
  margin: 0;
}

.page-contact .ct-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: clamp(24px, 3.4vw, 34px) 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-chips li {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 9px 14px;
  border: 1px solid var(--ct-hair);
  background: rgba(19, 26, 56, .74);
  font-size: 13px;
  color: var(--lr-mist);
  letter-spacing: .02em;
}

.page-contact .ct-chips b {
  font-family: var(--lr-font-mono);
  font-size: 17px;
  font-weight: 600;
  color: var(--lr-cyan);
}

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

/* ---------- 双栏骨架 ---------- */
.page-contact .ct-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--ct-gap);
  align-items: start;
  padding-top: clamp(34px, 5vw, 62px);
}

.page-contact .ct-side {
  display: grid;
  gap: 14px;
  min-width: 0;
}

.page-contact .ct-flow-col {
  display: grid;
  gap: clamp(40px, 5.5vw, 72px);
  min-width: 0;
}

@media (min-width: 1020px) {
  .page-contact .ct-shell {
    grid-template-columns: minmax(288px, 346px) minmax(0, 1fr);
  }

  .page-contact .ct-side {
    position: sticky;
    top: 106px;
  }
}

/* ---------- 左侧联系卡 ---------- */
.page-contact .ct-contact-card {
  position: relative;
  background: var(--lr-paper);
  color: var(--lr-ink);
  border: 2px solid var(--lr-ink);
  box-shadow: 8px 8px 0 rgba(255, 86, 48, .88);
  padding: 22px 22px 20px;
}

.page-contact .ct-contact-card .lr-index-label {
  color: var(--lr-ink);
  opacity: .58;
  margin: 0;
}

.page-contact .ct-contact-card__title {
  font-size: 21px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: .01em;
  color: var(--lr-ink);
  margin: 10px 0 18px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--lr-ink);
}

.page-contact .ct-contact-card__list {
  margin: 0;
  display: grid;
  gap: 15px;
}

.page-contact .ct-contact-card__row dt {
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: rgba(27, 20, 16, .58);
  margin-bottom: 5px;
}

.page-contact .ct-contact-card__row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.55;
  color: var(--lr-ink);
  word-break: break-word;
}

.page-contact .ct-mono {
  font-family: var(--lr-font-mono);
  font-size: 13.5px !important;
  letter-spacing: -.01em;
}

.page-contact .ct-contact-card__note {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px dashed rgba(27, 20, 16, .38);
  font-size: 12.5px;
  line-height: 1.7;
  color: rgba(27, 20, 16, .78);
}

.page-contact .ct-contact-card__legal {
  margin: 12px 0 0;
  font-family: var(--lr-font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: rgba(27, 20, 16, .58);
}

.page-contact .ct-side__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  padding: 13px 15px;
  border: 1px solid var(--ct-hair);
  background: rgba(14, 42, 52, .55);
  font-size: 12.5px;
  color: var(--lr-mist);
}

.page-contact .ct-side__meta .lr-status {
  color: var(--lr-cyan);
}

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

.page-contact .ct-side__links a {
  display: block;
  background: var(--lr-abyss);
  padding: 13px 15px;
  font-size: 13px;
  line-height: 1.5;
  letter-spacing: .02em;
  color: var(--lr-mist);
  text-decoration: none;
  transition: color .2s ease, background-color .2s ease;
}

.page-contact .ct-side__links a:hover,
.page-contact .ct-side__links a:focus-visible {
  color: var(--lr-cyan);
  background: rgba(53, 230, 255, .08);
}

/* ---------- 区块标题 ---------- */
.page-contact .ct-sec-head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-contact .ct-sec-head .lr-index-label {
  color: var(--lr-violet);
  margin: 0;
}

.page-contact .ct-sec-head .lr-h2 {
  margin: 0;
}

.page-contact .ct-sec-head p {
  margin: 0;
  max-width: 64ch;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--lr-mist);
}

/* ---------- 配图 ---------- */
.page-contact .ct-figure {
  margin: 0 0 clamp(20px, 3vw, 30px);
  border: 1px solid var(--lr-line-soft);
  background: var(--lr-night);
}

.page-contact .ct-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 11 / 7;
  object-fit: cover;
}

.page-contact .ct-figure figcaption {
  padding: 11px 14px;
  border-top: 1px solid var(--lr-line-soft);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--lr-mist);
}

/* ---------- 合作类型 ---------- */
.page-contact .ct-tracks {
  display: grid;
  gap: 14px;
}

.page-contact .ct-track {
  position: relative;
  padding: 20px 20px 18px;
  background: var(--lr-night);
  border: 1px solid var(--lr-line-soft);
  border-left: 3px solid var(--lr-violet);
  clip-path: polygon(0 0, calc(100% - var(--ct-cut)) 0, 100% var(--ct-cut), 100% 100%, 0 100%);
  transition: transform .24s ease, border-color .24s ease, box-shadow .24s ease;
}

.page-contact .ct-track:hover {
  transform: translate(-3px, -3px);
  border-left-color: var(--lr-cyan);
  box-shadow: 0 16px 36px -20px rgba(53, 230, 255, .8);
}

.page-contact .ct-track__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 11px;
}

.page-contact .ct-track__no {
  font-family: var(--lr-font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--lr-cyan);
}

.page-contact .ct-track h3 {
  margin: 0 0 9px;
  font-size: 19px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: .01em;
  color: var(--lr-white);
}

.page-contact .ct-track p {
  margin: 0 0 13px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--lr-mist);
}

.page-contact .ct-track ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 7px;
}

.page-contact .ct-track li {
  position: relative;
  padding-left: 16px;
  font-size: 13.5px;
  line-height: 1.62;
  color: rgba(245, 248, 255, .82);
}

.page-contact .ct-track li::before {
  content: "";
  position: absolute;
  left: 1px;
  top: .6em;
  width: 6px;
  height: 6px;
  background: var(--lr-cyan);
  transform: rotate(45deg);
}

.page-contact .ct-track__link {
  display: inline-block;
  margin-top: 15px;
  padding-bottom: 2px;
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--lr-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 255, .38);
}

.page-contact .ct-track__link:hover {
  color: var(--lr-cyan-soft);
  border-bottom-color: var(--lr-cyan-soft);
}

/* ---------- 能力清单 ---------- */
.page-contact .ct-caps {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-contact .ct-cap {
  padding: 17px 18px;
  border: 1px solid var(--lr-line-soft);
  background: linear-gradient(152deg, rgba(19, 26, 56, .96) 0%, rgba(14, 42, 52, .68) 100%);
}

.page-contact .ct-cap h3 {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 9px;
  margin: 0 0 8px;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--lr-white);
}

.page-contact .ct-cap h3 span {
  font-family: var(--lr-font-mono);
  font-size: 10.5px;
  letter-spacing: .16em;
  color: var(--lr-violet);
}

.page-contact .ct-cap p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--lr-mist);
}

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

/* ---------- 流程轴 ---------- */
.page-contact .ct-flow {
  position: relative;
  margin: 0;
  padding: 0 0 0 30px;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-contact .ct-flow::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--lr-cyan) 0%, rgba(139, 92, 255, .72) 55%, rgba(53, 230, 255, .06) 100%);
}

.page-contact .ct-step {
  position: relative;
}

.page-contact .ct-step::before {
  content: "";
  position: absolute;
  left: -29px;
  top: 17px;
  width: 17px;
  height: 17px;
  background: var(--lr-abyss);
  border: 1px solid var(--lr-cyan);
  box-shadow: var(--lr-glow);
  transform: rotate(45deg);
}

.page-contact .ct-step details {
  border: 1px solid var(--lr-line-soft);
  background: rgba(19, 26, 56, .62);
  transition: border-color .22s ease, box-shadow .22s ease;
}

.page-contact .ct-step details[open] {
  border-color: var(--ct-hair);
  box-shadow: 0 0 0 1px rgba(53, 230, 255, .12);
}

.page-contact .ct-step summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 6px 12px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
}

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

.page-contact .ct-step__no {
  font-family: var(--lr-font-mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--lr-cyan);
}

.page-contact .ct-step__title {
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--lr-white);
}

.page-contact .ct-step details[open] .ct-step__title {
  color: var(--lr-cyan-soft);
}

.page-contact .ct-step__meta {
  grid-column: 2 / -1;
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--lr-mist);
}

.page-contact .ct-step__body {
  padding: 14px 18px 18px;
  border-top: 1px dashed rgba(154, 166, 200, .22);
}

.page-contact .ct-step__body p {
  margin: 0 0 11px;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--lr-mist);
}

.page-contact .ct-step__body ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 6px;
}

.page-contact .ct-step__body li {
  position: relative;
  padding-left: 15px;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(245, 248, 255, .8);
}

.page-contact .ct-step__body li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--lr-violet);
}

/* ---------- 问答 ---------- */
.page-contact .ct-faq {
  display: grid;
  gap: 10px;
}

.page-contact .ct-faq__item {
  border: 1px solid var(--lr-line-soft);
  background: rgba(10, 14, 34, .8);
}

.page-contact .ct-faq__item[open] {
  border-color: var(--ct-hair);
  background: rgba(19, 26, 56, .72);
}

.page-contact .ct-faq__item summary {
  position: relative;
  padding: 15px 46px 15px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 14.5px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--lr-white);
}

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

.page-contact .ct-faq__item summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--lr-font-mono);
  font-size: 17px;
  color: var(--lr-cyan);
}

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

.page-contact .ct-faq__item p {
  margin: 0;
  padding: 0 18px 16px;
  font-size: 13.5px;
  line-height: 1.76;
  color: var(--lr-mist);
  border-top: 1px dashed rgba(154, 166, 200, .22);
  padding-top: 13px;
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-track,
  .page-contact .ct-side__links a,
  .page-contact .ct-step details {
    transition: none;
  }

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