.page-contact .ct-hero {
  padding-block: clamp(28px, 5vw, 52px) clamp(22px, 4vw, 40px);
}

.page-contact .ct-hero__inner {
  display: grid;
  gap: 22px;
  align-items: end;
}

.page-contact .ct-hero__lead {
  min-width: 0;
}

.page-contact .ct-hero__title {
  margin-top: 10px;
  max-width: 16ch;
  font-size: clamp(1.85rem, 5.2vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.page-contact .ct-hero__note {
  display: grid;
  gap: 8px;
  align-content: end;
  padding-left: 16px;
  border-left: 2px solid var(--violet);
}

.page-contact .ct-hero__note-line {
  margin: 0;
  font-size: 14px;
  color: var(--mist);
  letter-spacing: 0.01em;
}

.page-contact .ct-hero__note-line .ph-mono {
  display: inline-block;
  min-width: 5.6em;
  margin-right: 10px;
  color: var(--cyan);
}

.page-contact .ct-hero__lede {
  margin: 22px 0 0;
  max-width: 68ch;
  border-top: 1px solid var(--line);
  padding-top: 20px;
}

@media (min-width: 880px) {
  .page-contact .ct-hero__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 48px;
  }
}

/* ---------- 双栏布局 ---------- */
.page-contact .ct-layout {
  padding-block: clamp(36px, 6vw, 68px);
}

.page-contact .ct-layout__inner {
  display: grid;
  gap: 44px;
  align-items: start;
}

.page-contact .ct-layout__main {
  min-width: 0;
}

@media (min-width: 1000px) {
  .page-contact .ct-layout__inner {
    grid-template-columns: minmax(0, 1fr) 350px;
    gap: 60px;
  }
  .page-contact .ct-rail {
    position: sticky;
    top: 104px;
  }
}

/* ---------- 区块标题 ---------- */
.page-contact .ct-block-head {
  margin-bottom: 26px;
}

.page-contact .ct-block-head--gap {
  margin-top: clamp(48px, 7vw, 80px);
}

.page-contact .ct-block-head__lede {
  margin: 12px 0 0;
  max-width: 60ch;
  color: var(--gray);
  font-size: 15px;
  line-height: 1.75;
}

/* ---------- 四类合作方向 ---------- */
.page-contact .ct-track {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
}

.page-contact .ct-track__item {
  display: grid;
  gap: 10px;
  padding: 24px 20px 24px 22px;
  border-top: 1px solid var(--line);
  border-left: 2px solid var(--violet);
  background: linear-gradient(90deg, rgba(108, 43, 217, 0.1), rgba(11, 14, 20, 0) 62%);
}

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

.page-contact .ct-track__item:nth-child(2) {
  border-left-color: var(--cyan);
  background: linear-gradient(90deg, rgba(0, 229, 255, 0.08), rgba(11, 14, 20, 0) 62%);
}

.page-contact .ct-track__item:nth-child(3) {
  border-left-color: var(--violet-soft);
  background: linear-gradient(90deg, rgba(169, 139, 240, 0.1), rgba(11, 14, 20, 0) 62%);
}

.page-contact .ct-track__item:nth-child(4) {
  border-left-color: var(--orange);
  background: linear-gradient(90deg, rgba(255, 107, 53, 0.09), rgba(11, 14, 20, 0) 62%);
}

.page-contact .ct-track__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
}

.page-contact .ct-track__num {
  color: var(--cyan);
  font-size: 13px;
  letter-spacing: 0.08em;
}

.page-contact .ct-track__name {
  margin: 0;
  font-family: var(--font-sans);
  font-size: clamp(1.1rem, 1.6vw, 1.35rem);
  font-weight: 700;
  color: var(--mist);
  letter-spacing: 0;
}

.page-contact .ct-track__who {
  margin: 0;
  font-size: 13px;
  color: var(--gray);
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

.page-contact .ct-track__body {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .ct-track__gain {
  margin: 2px 0 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--violet-soft);
}

.page-contact .ct-track__gain .ph-mono {
  color: var(--cyan);
  margin-right: 8px;
}

/* ---------- 四步流程 ---------- */
.page-contact .ct-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .ct-steps__item {
  background: var(--ink);
}

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

.page-contact .ct-steps__summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  transition: background 160ms var(--ease);
}

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

.page-contact .ct-steps__summary:hover {
  background: rgba(0, 229, 255, 0.06);
}

.page-contact .ct-steps__summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .ct-steps__num {
  color: var(--violet-soft);
  font-size: 13px;
  letter-spacing: 0.08em;
  flex: 0 0 auto;
}

.page-contact .ct-steps__name {
  font-weight: 700;
  font-size: 16px;
  color: var(--mist);
  flex: 1 1 auto;
  min-width: 0;
}

.page-contact .ct-steps__hint {
  flex: 0 0 auto;
  font-size: 12px;
  color: var(--gray);
  text-align: right;
}

.page-contact .ct-steps__detail[open] .ct-steps__summary {
  border-bottom: 1px solid var(--line);
  background: rgba(108, 43, 217, 0.14);
}

.page-contact .ct-steps__body {
  padding: 16px 18px 20px;
}

.page-contact .ct-steps__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 流程配图 ---------- */
.page-contact .ct-flowfig {
  margin: 26px 0 0;
  padding: 0;
}

.page-contact .ct-flowfig .ph-media__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
}

.page-contact .ct-flowfig__cap {
  margin-top: 10px;
  font-size: 13px;
  color: var(--gray);
  line-height: 1.7;
}

.page-contact .ct-flowfig__cap .ph-mono {
  color: var(--cyan);
  margin-right: 8px;
}

/* ---------- 提交意向信息清单 ---------- */
.page-contact .ct-brief {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .ct-brief__item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  padding: 15px 18px;
  background: var(--ink-2);
}

.page-contact .ct-brief__idx {
  color: var(--cyan);
  font-size: 13px;
  letter-spacing: 0.08em;
  padding-top: 3px;
}

.page-contact .ct-brief__txt {
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .ct-brief__txt strong {
  color: #fff;
  font-weight: 600;
}

/* ---------- 右栏 ---------- */
.page-contact .ct-rail {
  min-width: 0;
  display: grid;
  gap: 20px;
  align-content: start;
}

.page-contact .ct-rail__figure {
  margin: 0;
  padding: 0;
}

.page-contact .ct-rail__figure .ph-media__img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 220px;
  object-fit: cover;
  border: 1px solid var(--line);
  filter: saturate(0.85) contrast(1.05);
}

.page-contact .ct-rail__cap {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  color: var(--gray);
  letter-spacing: 0.06em;
}

.page-contact .ct-contact {
  position: relative;
  padding: 26px 20px 22px;
  background: var(--ink-2);
  border: 1px solid rgba(0, 229, 255, 0.34);
}

.page-contact .ct-contact::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--violet);
}

.page-contact .ct-contact__title {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--mist);
  letter-spacing: 0;
}

.page-contact .ct-contact__lede {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--gray);
}

.page-contact .ct-contact__list {
  margin: 18px 0 0;
  display: grid;
  gap: 0;
}

.page-contact .ct-contact__row {
  display: grid;
  gap: 4px;
  padding: 13px 0;
  border-top: 1px solid var(--line);
}

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

.page-contact .ct-contact__label {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-contact .ct-contact__value {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--mist);
  word-break: break-word;
}

.page-contact .ct-contact__note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.72;
  color: var(--gray);
}

/* ---------- 优先通道 ---------- */
.page-contact .ct-priority {
  padding-block: clamp(38px, 6vw, 68px);
}

.page-contact .ct-priority__inner {
  display: grid;
  gap: 30px;
  align-items: start;
}

.page-contact .ct-priority__lead,
.page-contact .ct-priority__side {
  min-width: 0;
}

.page-contact .ct-priority__lead .ph-subtitle {
  margin-top: 10px;
}

.page-contact .ct-priority__text {
  margin: 14px 0 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--mist);
  max-width: 52ch;
}

.page-contact .ct-priority__side {
  padding: 20px 0 0;
  border-top: 2px solid var(--cyan);
}

.page-contact .ct-priority__hint {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-contact .ct-priority__side .ct-priority__text {
  margin-top: 10px;
  color: var(--mist);
}

.page-contact .ct-priority__btn {
  margin-top: 18px;
}

.page-contact .ct-priority__btn + .ct-priority__btn {
  margin-left: 0;
}

@media (min-width: 860px) {
  .page-contact .ct-priority__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: 60px;
  }
  .page-contact .ct-priority__side {
    padding-top: 0;
    padding-left: 28px;
    border-top: 0;
    border-left: 2px solid var(--cyan);
  }
}

/* ---------- 合作生态 ---------- */
.page-contact .ct-eco__big {
  display: inline-block;
  margin-right: 6px;
  color: var(--cyan);
  font-size: 1.15em;
  line-height: 1;
  vertical-align: -0.06em;
}

.page-contact .ct-eco__grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .ct-eco__cell {
  background: var(--ink);
  padding: 20px 18px 22px;
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-contact .ct-eco__label {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--violet-soft);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-eco__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .ct-eco__foot {
  margin: 22px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--gray);
}

@media (max-width: 560px) {
  .page-contact .ct-steps__summary {
    flex-wrap: wrap;
    gap: 8px 12px;
  }
  .page-contact .ct-steps__hint {
    flex: 0 0 100%;
    text-align: left;
    padding-left: 27px;
  }
  .page-contact .ct-brief__item {
    grid-template-columns: 26px minmax(0, 1fr);
    gap: 10px;
    padding: 14px 14px;
  }
  .page-contact .ct-track__item {
    padding: 20px 14px 20px 16px;
  }
  .page-contact .ct-contact {
    padding: 22px 16px 20px;
  }
}
<<<END>>>