.page-contact {
  --ct-hair: 1px solid var(--grid);
  --ct-soft-line: #222932;
  position: relative;
  background: var(--ink);
  overflow-x: hidden;
}

/* 面包屑条 */
.page-contact .ct-crumb-bar {
  border-bottom: var(--ct-hair);
  background: var(--panel-2);
}
.page-contact .ct-crumb-bar .wrap {
  padding-block: 12px;
}

/* 首屏 */
.page-contact .ct-hero {
  position: relative;
  padding: 40px 0 46px;
  border-bottom: var(--ct-hair);
  background:
    radial-gradient(120% 92% at 90% -10%, rgba(255, 106, 26, .18), transparent 58%),
    radial-gradient(88% 74% at 2% 108%, rgba(34, 224, 214, .11), transparent 62%),
    var(--ink);
  overflow: hidden;
}
.page-contact .ct-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 3px;
  background: linear-gradient(90deg, var(--lava) 0 18%, transparent 18% 100%);
}
.page-contact .ct-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 30px;
}
.page-contact .ct-hero-title {
  display: grid;
  margin: 12px 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(42px, 13vw, 104px);
  line-height: .9;
  letter-spacing: -.02em;
  color: var(--white);
}
.page-contact .ct-hero-title span {
  display: block;
}
.page-contact .ct-hero-accent {
  color: var(--lava);
  -webkit-text-stroke: 1px rgba(255, 162, 58, .35);
}
.page-contact .ct-hero-lede {
  max-width: 34em;
  color: var(--soft);
}
.page-contact .ct-hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}
.page-contact .ct-hero-visual {
  position: relative;
  margin: 0;
  border: var(--ct-hair);
  background: var(--panel);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}
.page-contact .ct-hero-visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(1.05) contrast(1.05);
}

/* 章节标题组 */
.page-contact .ct-head {
  display: grid;
  gap: 14px;
  margin-bottom: 26px;
}
.page-contact .ct-head-note {
  margin: 0;
  font-size: 15px;
  color: var(--muted);
  border-left: 2px solid var(--grid);
  padding-left: 14px;
}

/* 合作方向 */
.page-contact .ct-dirs {
  background: linear-gradient(180deg, var(--ink) 0%, #0D1015 100%);
}
.page-contact .ct-dir-grid {
  display: grid;
  gap: 1px;
  background: var(--grid);
  border: var(--ct-hair);
}
.page-contact .ct-dir {
  position: relative;
  background: var(--panel);
  transition: background .24s var(--ease);
}
.page-contact .ct-dir::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 18px;
  height: 18px;
  background: linear-gradient(225deg, var(--lava) 0 50%, transparent 50%);
  opacity: 0;
  transition: opacity .24s var(--ease);
  pointer-events: none;
}
.page-contact .ct-dir:hover {
  background: #171C22;
}
.page-contact .ct-dir:hover::after,
.page-contact .ct-dir[open]::after {
  opacity: 1;
}
.page-contact .ct-dir-trigger {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: start;
  gap: 12px;
  padding: 22px 22px 18px;
  cursor: pointer;
  list-style: none;
}
.page-contact .ct-dir-trigger::-webkit-details-marker {
  display: none;
}
.page-contact .ct-dir-trigger:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}
.page-contact .ct-dir[open] .ct-dir-trigger {
  border-bottom: var(--ct-hair);
}
.page-contact .ct-dir-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--amber);
  padding-top: 5px;
}
.page-contact .ct-dir-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 21px;
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--white);
}
.page-contact .ct-dir-arrow {
  width: 10px;
  height: 10px;
  margin-top: 7px;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(45deg);
  transition: transform .24s var(--ease), border-color .24s var(--ease);
}
.page-contact .ct-dir[open] .ct-dir-arrow {
  transform: rotate(-135deg);
  border-color: var(--lava);
}
.page-contact .ct-dir-panel {
  padding: 20px 22px 24px;
}
.page-contact .ct-dir-lead {
  margin: 0 0 18px;
  font-size: 15px;
  color: var(--soft);
}
.page-contact .ct-dir-facts {
  margin: 0;
  display: grid;
  gap: 12px;
}
.page-contact .ct-dir-fact {
  display: grid;
  gap: 3px;
  padding-top: 11px;
  border-top: 1px solid var(--ct-soft-line);
}
.page-contact .ct-dir-fact dt {
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--cyan);
}
.page-contact .ct-dir-fact dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--muted);
}

/* 流程 */
.page-contact .ct-flow {
  position: relative;
  padding-inline: 0;
  border-block: var(--ct-hair);
  background: linear-gradient(180deg, #0E1116 0%, var(--ink) 100%);
  overflow: hidden;
}
.page-contact .ct-flow-bg {
  position: absolute;
  inset: 0;
  opacity: .14;
  pointer-events: none;
}
.page-contact .ct-flow-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.page-contact .ct-flow-inner {
  position: relative;
  z-index: 1;
}
.page-contact .ct-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--grid);
  border: var(--ct-hair);
}
.page-contact .ct-step {
  position: relative;
  padding: 26px 22px 26px 24px;
  background: rgba(16, 20, 25, .92);
  border-left: 2px solid var(--grid);
  transition: background .24s var(--ease), border-color .24s var(--ease);
}
.page-contact .ct-step:hover {
  background: #171C22;
  border-left-color: var(--lava);
}
.page-contact .ct-step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: 14px;
  color: var(--ink);
  background: var(--amber);
  transition: background .24s var(--ease), color .24s var(--ease);
}
.page-contact .ct-step:hover .ct-step-num {
  background: var(--cyan);
}
.page-contact .ct-step-title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -.01em;
  color: var(--white);
}
.page-contact .ct-step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--soft);
}
.page-contact .ct-step-meta {
  margin-top: 16px !important;
  padding-top: 12px;
  border-top: 1px solid var(--ct-soft-line);
  font-family: var(--font-mono);
  font-size: 12px !important;
  letter-spacing: .04em;
  color: var(--muted) !important;
}

/* 联系方式 */
.page-contact .ct-contact {
  background: var(--ink);
}
.page-contact .ct-contact-card {
  display: grid;
  gap: 1px;
  background: var(--grid);
  border: var(--ct-hair);
}
.page-contact .ct-contact-main {
  padding: 30px 24px 32px;
}
.page-contact .ct-contact-title {
  margin: 10px 0 22px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 6vw, 46px);
  line-height: 1.02;
  letter-spacing: -.02em;
  color: var(--white);
}
.page-contact .ct-contact-list {
  display: grid;
  gap: 1px;
  margin: 0;
  background: rgba(42, 49, 56, .55);
  border-top: var(--ct-hair);
  border-bottom: var(--ct-hair);
}
.page-contact .ct-contact-row {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  background: transparent;
}
.page-contact .ct-contact-row .contact-key {
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--cyan);
}
.page-contact .ct-contact-row .contact-val {
  margin: 0;
  font-size: 16px;
  line-height: 1.5;
  color: var(--white);
  word-break: break-word;
}
.page-contact .ct-mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .01em;
}
.page-contact .ct-contact-foot {
  margin: 20px 0 0;
  padding: 14px 0 0;
  border-top: 1px solid rgba(42, 49, 56, .8);
  font-size: 14px;
  line-height: 1.65;
  color: var(--soft);
}
.page-contact .ct-contact-side {
  padding: 30px 24px 32px;
  background: var(--panel);
}
.page-contact .ct-contact-side-title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 20px;
  color: var(--white);
}
.page-contact .ct-contact-side p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.62;
  color: var(--muted);
}
.page-contact .ct-contact-points {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
}
.page-contact .ct-contact-points li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  color: var(--soft);
}
.page-contact .ct-contact-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 7px;
  height: 7px;
  background: var(--ok);
}
.page-contact .ct-contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

/* 准备材料 */
.page-contact .ct-prep {
  background: linear-gradient(180deg, var(--ink) 0%, #0D1015 100%);
  border-top: var(--ct-hair);
}
.page-contact .ct-prep-grid {
  display: grid;
  gap: 28px;
}
.page-contact .ct-prep-intro p {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.65;
  color: var(--soft);
}
.page-contact .ct-prep-side-note {
  padding-top: 14px;
  border-top: var(--ct-hair);
  font-size: 14px !important;
  color: var(--muted) !important;
}
.page-contact .ct-prep-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--ct-hair);
}
.page-contact .ct-prep-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  padding: 20px 0;
  border-bottom: var(--ct-hair);
}
.page-contact .ct-prep-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
  background: var(--white);
}
.page-contact .ct-prep-item h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -.01em;
  color: var(--white);
}
.page-contact .ct-prep-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.62;
  color: var(--muted);
}

/* 延伸条带 */
.page-contact .ct-next {
  border-top: var(--ct-hair);
  background: var(--panel-2);
  padding-block: 30px;
}
.page-contact .ct-next-inner {
  display: grid;
  gap: 18px;
}
.page-contact .ct-next-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--soft);
}
.page-contact .ct-next-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.page-contact .ct-next-link {
  padding: 10px 16px;
  border: 1px solid var(--grid);
  color: var(--white);
  font-size: 14px;
  text-decoration: none;
  transition: border-color .22s var(--ease), color .22s var(--ease), background .22s var(--ease);
}
.page-contact .ct-next-link:hover,
.page-contact .ct-next-link:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(34, 224, 214, .07);
}
.page-contact .ct-next-link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* 桌面栅格 */
@media (min-width: 720px) {
  .page-contact .ct-dir-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-contact .ct-contact-row {
    grid-template-columns: 132px minmax(0, 1fr);
    align-items: baseline;
    gap: 14px;
  }
  .page-contact .ct-next-inner {
    grid-template-columns: minmax(0, 1.5fr) auto;
    align-items: center;
  }
}

@media (min-width: 900px) {
  .page-contact .ct-hero {
    padding: 64px 0 72px;
  }
  .page-contact .ct-hero-inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: end;
    gap: 46px;
  }
  .page-contact .ct-head {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    align-items: end;
    gap: 40px;
    margin-bottom: 34px;
  }
  .page-contact .ct-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-contact .ct-contact-card {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  }
  .page-contact .ct-contact-main {
    padding: 44px 40px 46px;
  }
  .page-contact .ct-contact-side {
    padding: 44px 36px 46px;
  }
  .page-contact .ct-prep-grid {
    grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
    gap: 56px;
  }
}

@media (min-width: 1180px) {
  .page-contact .ct-dir-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-contact .ct-hero-title {
    margin-top: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-dir,
  .page-contact .ct-dir::after,
  .page-contact .ct-dir-arrow,
  .page-contact .ct-step,
  .page-contact .ct-step-num,
  .page-contact .ct-next-link {
    transition: none;
  }
}