.page-contact {
  --ct-block: clamp(56px, 8vw, 116px);
  --ct-accent: var(--violet);
  background: var(--ink);
  color: var(--paper);
  overflow-x: clip;
}

.page-contact .wrap {
  position: relative;
}

/* ---------- 首屏 ---------- */

.page-contact .ct-hero {
  position: relative;
  padding: clamp(20px, 3.5vw, 40px) 0 var(--ct-block);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(58% 52% at 84% 12%, rgba(138, 92, 255, 0.24), transparent 72%),
    radial-gradient(46% 44% at 6% 88%, rgba(255, 122, 47, 0.16), transparent 74%),
    linear-gradient(180deg, #0B0917 0%, var(--ink) 62%);
}

.page-contact .breadcrumbs {
  margin-bottom: clamp(24px, 4vw, 44px);
}

.page-contact .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.82rem;
  color: var(--muted);
}

.page-contact .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}

.page-contact .breadcrumbs__link {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 200ms var(--ease), border-color 200ms var(--ease);
}

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

.page-contact .breadcrumbs__current {
  color: var(--paper);
}

.page-contact .ct-hero__grid {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  align-items: end;
}

.page-contact .ct-hero__kicker {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .ct-hero__kicker-no {
  display: inline-grid;
  place-items: center;
  width: 32px;
  height: 22px;
  background: var(--paper-warm);
  color: var(--ink);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
}

.page-contact .ct-hero__title {
  margin: 0 0 22px;
  font-size: clamp(2.2rem, 6vw, 4.1rem);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-contact .ct-hero__title::after {
  content: "";
  display: block;
  width: clamp(72px, 14vw, 170px);
  height: 4px;
  margin-top: 22px;
  background: linear-gradient(90deg, var(--violet), var(--cyan));
}

.page-contact .ct-hero__lede {
  max-width: 46ch;
  margin: 0 0 28px;
  font-size: 1.04rem;
  line-height: 1.8;
  color: var(--muted);
}

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

.page-contact .ct-hero__media {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-2);
  box-shadow: 6px 6px 0 0 var(--line);
}

.page-contact .ct-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(200deg, rgba(138, 92, 255, 0.16), transparent 58%);
  pointer-events: none;
}

.page-contact .ct-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 8;
  object-fit: cover;
}

/* ---------- 章节通用 ---------- */

.page-contact .ct-section {
  position: relative;
  padding: var(--ct-block) 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .section__head {
  max-width: 60ch;
  margin-bottom: clamp(28px, 4vw, 48px);
}

.page-contact .section__no {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .section__title {
  margin: 0 0 14px;
  font-size: clamp(1.65rem, 3.6vw, 2.5rem);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .section__lede {
  margin: 0;
  font-size: 1.02rem;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 合作方向 ---------- */

.page-contact .ct-directions {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .ct-direction {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(22px, 3vw, 34px) clamp(20px, 3vw, 32px) clamp(22px, 3vw, 30px);
  background: var(--ink-2);
  transition: background 220ms var(--ease), transform 220ms var(--ease);
}

.page-contact .ct-direction::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--ct-accent);
}

.page-contact .ct-direction:hover {
  background: #17142A;
  transform: translateY(-3px);
}

.page-contact .ct-direction--violet { --ct-accent: var(--violet); }
.page-contact .ct-direction--cyan   { --ct-accent: var(--cyan); }
.page-contact .ct-direction--orange { --ct-accent: var(--orange); }
.page-contact .ct-direction--coral  { --ct-accent: var(--coral); }

.page-contact .ct-direction__no {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.2em;
  color: var(--ct-accent);
}

.page-contact .ct-direction__name {
  margin: 0;
  font-size: clamp(1.3rem, 2.4vw, 1.6rem);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .ct-direction__scene {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .ct-direction__meta {
  display: grid;
  gap: 8px;
  margin: auto 0 0;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
}

.page-contact .ct-direction__row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 6px 14px;
}

.page-contact .ct-direction__row dt {
  font-size: 0.82rem;
  color: var(--muted);
}

.page-contact .ct-direction__row dd {
  margin: 0;
  font-size: 0.84rem;
  color: var(--paper);
  text-align: right;
}

/* ---------- 对接流程 ---------- */

.page-contact .ct-section--process {
  background:
    linear-gradient(180deg, rgba(138, 92, 255, 0.07), transparent 40%),
    var(--ink);
}

.page-contact .ct-process {
  display: grid;
  gap: clamp(32px, 5vw, 56px);
}

.page-contact .ct-steps {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-step {
  position: relative;
  padding: 0 0 34px 48px;
}

.page-contact .ct-step:last-child {
  padding-bottom: 0;
}

.page-contact .ct-step::before {
  content: "";
  position: absolute;
  left: 13px;
  top: 30px;
  bottom: 0;
  width: 1px;
  background: var(--line);
}

.page-contact .ct-step:last-child::before {
  display: none;
}

.page-contact .ct-step__no {
  position: absolute;
  left: 0;
  top: 0;
  display: grid;
  place-items: center;
  width: 27px;
  height: 27px;
  background: var(--cyan);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  border-radius: var(--radius);
}

.page-contact .ct-step:last-child .ct-step__no {
  background: var(--orange);
}

.page-contact .ct-step__top {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 14px;
  margin-bottom: 8px;
}

.page-contact .ct-step__name {
  margin: 0;
  font-size: 1.16rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .ct-step__dur {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-contact .ct-step:last-child .ct-step__dur {
  color: var(--orange);
}

.page-contact .ct-step__text {
  margin: 0 0 10px;
  font-size: 0.96rem;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .ct-step__need {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 0.84rem;
  color: var(--paper);
}

.page-contact .ct-step__need span {
  padding: 2px 8px;
  background: var(--paper-warm);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
}

.page-contact .ct-process__media {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-2);
}

.page-contact .ct-process__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  opacity: 0.88;
}

.page-contact .ct-process__caption {
  padding: 12px 16px;
  border-top: 1px solid var(--line);
  font-size: 0.8rem;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 对接窗口 ---------- */

.page-contact .ct-section--channels {
  background:
    radial-gradient(52% 60% at 90% 20%, rgba(45, 226, 198, 0.1), transparent 70%),
    var(--ink-2);
}

.page-contact .ct-channels {
  display: grid;
  gap: clamp(18px, 3vw, 26px);
}

.page-contact .ct-channel {
  position: relative;
  padding: 24px 22px 26px;
  background: var(--ink);
  border: 1px solid var(--line);
  box-shadow: 5px 5px 0 0 var(--line);
  transition: box-shadow 220ms var(--ease), transform 220ms var(--ease);
}

.page-contact .ct-channel:hover {
  transform: translate(-2px, -2px);
  box-shadow: 8px 8px 0 0 var(--line);
}

.page-contact .ct-channel--mail {
  border-color: var(--violet);
  box-shadow: 5px 5px 0 0 var(--violet);
}

.page-contact .ct-channel--mail:hover {
  box-shadow: 8px 8px 0 0 var(--violet);
}

.page-contact .ct-channel__label {
  display: inline-block;
  margin: 0 0 16px;
  padding: 3px 9px;
  background: var(--paper-warm);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
}

.page-contact .ct-channel__name {
  margin: 0 0 12px;
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--paper);
}

.page-contact .ct-channel__value {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: clamp(0.88rem, 2.2vw, 1.02rem);
  line-height: 1.6;
  letter-spacing: 0.02em;
  color: var(--cyan);
  word-break: break-word;
}

.page-contact .ct-channel--mail .ct-channel__value {
  color: var(--violet);
  word-break: break-all;
}

.page-contact .ct-channel__note {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 需求模板 ---------- */

.page-contact .ct-template {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
}

.page-contact .ct-template__lede {
  margin: 0 0 22px;
  font-size: 0.98rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .ct-checklist {
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
  counter-reset: ct-check;
}

.page-contact .ct-checklist li {
  position: relative;
  padding-left: 30px;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--paper);
}

.page-contact .ct-checklist li::before {
  counter-increment: ct-check;
  content: counter(ct-check, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.28em;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--violet);
}

.page-contact .ct-template__aside {
  margin: 0;
  padding-left: 14px;
  border-left: 2px solid var(--violet);
  font-size: 0.86rem;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .ct-code {
  border: 1px solid var(--line);
  background: #0B0916;
  overflow: hidden;
}

.page-contact .ct-code__bar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  padding: 11px 16px;
  border-bottom: 1px solid var(--line);
  background: var(--ink-2);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-contact .ct-code__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 10px var(--orange);
}

.page-contact .ct-code__body {
  margin: 0;
  padding: 20px 18px;
  font-family: var(--font-mono);
  font-size: 0.83rem;
  line-height: 1.9;
  letter-spacing: 0.01em;
  color: var(--paper);
  white-space: pre-wrap;
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-contact .ct-code__tip {
  margin: 14px 0 0;
  font-size: 0.84rem;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .ct-code__tip a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(45, 226, 198, 0.45);
}

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

/* ---------- 帮助中心引导 ---------- */

.page-contact .ct-section--redirect {
  border-bottom: 0;
}

.page-contact .ct-redirect {
  position: relative;
  padding: clamp(26px, 4vw, 44px) clamp(22px, 4vw, 44px);
  border: 1px solid var(--line);
  background:
    linear-gradient(120deg, rgba(138, 92, 255, 0.14), rgba(45, 226, 198, 0.08) 62%, transparent),
    var(--ink-2);
}

.page-contact .ct-redirect::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--violet), var(--cyan));
}

.page-contact .ct-redirect__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-contact .ct-redirect__title {
  margin: 0 0 14px;
  font-size: clamp(1.35rem, 3vw, 1.9rem);
  font-weight: 900;
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .ct-redirect__text {
  max-width: 62ch;
  margin: 0 0 26px;
  font-size: 0.96rem;
  line-height: 1.8;
  color: var(--muted);
}

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

/* ---------- 响应式 ---------- */

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

  .page-contact .ct-channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-contact .ct-hero__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    gap: clamp(36px, 5vw, 72px);
  }

  .page-contact .ct-hero__media img {
    aspect-ratio: 4 / 3;
  }

  .page-contact .ct-process {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: start;
  }

  .page-contact .ct-process__media {
    position: sticky;
    top: calc(var(--head-h) + 28px);
  }

  .page-contact .ct-template {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    align-items: start;
    gap: clamp(36px, 5vw, 64px);
  }
}

@media (min-width: 1100px) {
  .page-contact .ct-direction:nth-child(even) .ct-direction__scene {
    padding-right: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-direction,
  .page-contact .ct-channel {
    transition: opacity 200ms linear;
  }

  .page-contact .ct-direction:hover,
  .page-contact .ct-channel:hover {
    transform: none;
  }
}