.page-contact {
  --ct-rule: var(--line);
  --ct-gap-lg: clamp(56px, 7vw, 104px);
  padding-top: 28px;
  padding-bottom: 96px;
}

.page-contact .section {
  padding-block: clamp(48px, 6vw, 88px);
}

.page-contact .breadcrumb {
  margin-bottom: 20px;
}

.page-contact .ct-head {
  max-width: 70ch;
}

.page-contact .ct-head .lede {
  margin-top: 16px;
}

/* ---------- 首屏框景 ---------- */
.page-contact .ct-hero {
  padding-top: 8px;
}

.page-contact .ct-hero__frame {
  position: relative;
  padding: clamp(26px, 4.2vw, 60px);
  background:
    repeating-linear-gradient(90deg, var(--line-soft) 0 1px, transparent 1px 72px),
    repeating-linear-gradient(0deg, var(--line-soft) 0 1px, transparent 1px 72px),
    linear-gradient(180deg, rgba(14, 33, 28, 0.92), rgba(7, 20, 17, 0.55));
}

.page-contact .ct-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  align-items: end;
}

.page-contact .ct-hero__copy h1 {
  margin: 14px 0 0;
  max-width: 22ch;
}

.page-contact .ct-hero__copy .lede {
  margin-top: 20px;
  max-width: 52ch;
}

.page-contact .ct-hero__actions {
  margin-top: 30px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

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

.page-contact .ct-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 7 / 4;
  object-fit: cover;
}

@media (min-width: 920px) {
  .page-contact .ct-hero__grid {
    grid-template-columns: minmax(0, 1.04fr) minmax(0, 0.96fr);
    gap: clamp(36px, 5vw, 68px);
  }
}

/* ---------- 合作类型条带 ---------- */
.page-contact .ct-segmented {
  display: block;
  margin-top: 40px;
}

.page-contact .ct-segmented__list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 30px;
}

.page-contact .ct-tab {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  background: transparent;
  border: 1px solid var(--ct-rule);
  border-radius: var(--pill);
  color: var(--muted);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.2;
  letter-spacing: 0.03em;
  cursor: pointer;
  transition: color 0.22s var(--ease), border-color 0.22s var(--ease), background-color 0.22s var(--ease);
}

.page-contact .ct-tab:hover {
  color: var(--paper);
  border-color: var(--teal);
}

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

.page-contact .ct-tab[aria-selected="true"] {
  color: var(--ink-900);
  background: var(--neon);
  border-color: var(--neon);
}

.page-contact .ct-tab__num {
  font-size: 12px;
  opacity: 0.75;
}

.page-contact .ct-panel {
  border-top: 1px solid var(--ct-rule);
  padding-top: 30px;
}

.page-contact .ct-panel:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 6px;
}

.page-contact .ct-panel__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

.page-contact .ct-panel__main p {
  margin: 14px 0 0;
  color: var(--muted);
  max-width: 62ch;
}

.page-contact .ct-notes {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .ct-notes li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .ct-notes li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 9px;
  height: 1px;
  background: var(--teal);
}

.page-contact .ct-notes__k {
  color: var(--paper);
  font-weight: 600;
  margin-right: 6px;
}

.page-contact .ct-panel__aside {
  display: grid;
  align-content: start;
  gap: 4px;
  padding: 22px 24px;
  background: var(--ink-800);
  border-left: 2px solid var(--neon);
}

.page-contact .ct-panel__label {
  margin: 16px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .ct-panel__label:first-child {
  margin-top: 0;
}

.page-contact .ct-panel__value {
  margin: 6px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper);
}

@media (min-width: 880px) {
  .page-contact .ct-panel__inner {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.9fr);
    gap: clamp(32px, 4vw, 60px);
  }
}

/* ---------- 流程刻度线 ---------- */
.page-contact .ct-steps {
  list-style: none;
  margin: 44px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
}

.page-contact .ct-step {
  position: relative;
  padding-top: 30px;
  border-top: 1px solid var(--ct-rule);
}

.page-contact .ct-step__node {
  position: absolute;
  top: -6.5px;
  left: 0;
  width: 12px;
  height: 12px;
  background: var(--ink-900);
  border: 2px solid var(--neon);
  transform: rotate(45deg);
  transition: background-color 0.22s var(--ease);
}

.page-contact .ct-step:hover .ct-step__node {
  background: var(--neon);
}

.page-contact .ct-step__num {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-contact .ct-step__title {
  margin: 10px 0 0;
  font-family: var(--font-body);
  font-size: 19px;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .ct-step__body {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .ct-step__meta {
  margin: 16px 0 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--teal);
  transition: color 0.22s var(--ease);
}

.page-contact .ct-step:hover .ct-step__meta {
  color: var(--neon);
}

.page-contact .ct-process__media {
  margin: 52px 0 0;
}

.page-contact .ct-process__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 12 / 7;
  object-fit: cover;
}

@media (min-width: 880px) {
  .page-contact .ct-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 26px;
  }

  .page-contact .ct-step {
    padding-top: 34px;
  }

  .page-contact .ct-step__body {
    max-width: 30ch;
  }
}

/* ---------- 联系渠道 ---------- */
.page-contact .ct-channel__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
  align-items: start;
}

.page-contact .ct-channel__lede {
  margin: 16px 0 0;
  max-width: 46ch;
  color: var(--muted);
  line-height: 1.8;
}

.page-contact .ct-route {
  display: block;
  width: 100%;
  max-width: 420px;
  height: auto;
  margin: 32px 0 0;
}

.page-contact .ct-route__caption {
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--muted);
}

.page-contact .ct-channel__card {
  margin-right: 16px;
  margin-bottom: 16px;
  padding: clamp(24px, 3vw, 34px);
  color: var(--ink-900);
}

.page-contact .ct-contact {
  margin: 0;
  display: grid;
  gap: 24px;
}

.page-contact .ct-contact__row {
  display: grid;
  gap: 6px;
  padding-bottom: 22px;
  border-bottom: 1px solid rgba(7, 20, 17, 0.16);
}

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

.page-contact .ct-contact__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(7, 20, 17, 0.6);
}

.page-contact .ct-contact__value {
  margin: 0;
  display: grid;
  gap: 6px;
}

.page-contact .ct-contact__strong {
  font-family: var(--font-mono);
  font-size: clamp(17px, 2.4vw, 22px);
  font-weight: 700;
  color: var(--ink-900);
  word-break: break-word;
}

.page-contact .ct-contact__strong--text {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
}

.page-contact .ct-contact__note {
  font-size: 13.5px;
  line-height: 1.65;
  color: rgba(7, 20, 17, 0.68);
}

@media (min-width: 960px) {
  .page-contact .ct-channel__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.02fr);
    gap: clamp(40px, 5vw, 76px);
  }
}

/* ---------- 来信清单 ---------- */
.page-contact .ct-brief__list {
  list-style: none;
  margin: 42px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
}

.page-contact .ct-brief__item {
  position: relative;
  padding: 26px 24px 26px 26px;
  background: var(--ink-800);
  border-left: 3px solid var(--orange);
}

.page-contact .ct-brief__index {
  display: block;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--orange-soft);
}

.page-contact .ct-brief__title {
  margin: 10px 0 0;
  font-family: var(--font-body);
  font-size: 17px;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .ct-brief__item p {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--muted);
}

@media (min-width: 720px) {
  .page-contact .ct-brief__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px 26px;
  }
}

/* ---------- 常见问题 ---------- */
.page-contact .ct-faq__grid {
  margin-top: 42px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  border-top: 1px solid var(--ct-rule);
}

.page-contact .ct-faq__item {
  padding: 26px 0;
  border-bottom: 1px solid var(--ct-rule);
}

.page-contact .ct-faq__q {
  margin: 0;
  font-family: var(--font-body);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--neon);
}

.page-contact .ct-faq__item p {
  margin: 12px 0 0;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

@media (min-width: 900px) {
  .page-contact .ct-faq__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(32px, 4vw, 64px);
  }
}

/* ---------- 纠错通道 ---------- */
.page-contact .ct-fix__panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  padding: clamp(28px, 4vw, 48px);
  background:
    repeating-linear-gradient(135deg, rgba(28, 58, 51, 0.4) 0 1px, transparent 1px 14px),
    var(--ink-800);
  border: 1px solid var(--ct-rule);
}

.page-contact .ct-fix__text h2 {
  margin: 12px 0 0;
}

.page-contact .ct-fix__text p {
  margin: 16px 0 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .ct-fix__side {
  align-content: start;
  padding: 22px 24px;
  background: var(--ink-900);
  border-top: 2px solid var(--neon);
}

.page-contact .ct-fix__side-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .ct-notes--plain {
  margin-top: 16px;
}

.page-contact .ct-notes--plain li::before {
  background: var(--orange);
}

.page-contact .ct-fix__side-note {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper);
}

@media (min-width: 900px) {
  .page-contact .ct-fix__panel {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.85fr);
    gap: 48px;
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-tab,
  .page-contact .ct-step__node,
  .page-contact .ct-step__meta {
    transition: none;
  }
}
</main>