.page-contact {
  --ct-line-w: 2px;
  --ct-mark: 10px;
}

.page-contact .sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- 面包屑 ---------- */
.page-contact .crumbs {
  padding-top: clamp(18px, 3vw, 30px);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-contact .crumbs a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

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

.page-contact .crumbs__sep {
  margin: 0 8px;
  color: var(--line);
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  padding-top: clamp(26px, 4vw, 46px);
  padding-bottom: clamp(42px, 6vw, 86px);
}

.page-contact .ct-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 56px);
  align-items: center;
}

.page-contact .display {
  font-size: clamp(2.1rem, 6.6vw, 5rem);
  line-height: 0.98;
  margin: 18px 0 20px;
}

.page-contact .ct-hero .lede {
  max-width: 34ch;
  margin-bottom: 26px;
}

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

.page-contact .ct-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(200deg, rgba(52, 229, 200, 0.14) 0%, rgba(10, 31, 26, 0) 58%);
  pointer-events: none;
}

.page-contact .ct-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  opacity: 0.5;
  filter: saturate(0.65) contrast(1.12);
  border: var(--ct-line-w) solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% 86%, 90% 100%, 0 100%);
}

/* ---------- 两条路径 ---------- */
.page-contact .ct-paths {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 2.6vw, 30px);
}

.page-contact .ct-path {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(22px, 3vw, 34px);
  background: var(--ink);
  border: var(--ct-line-w) solid var(--line);
  box-shadow: var(--shadow-soft);
  transition: transform 240ms var(--ease), box-shadow 240ms var(--ease);
}

.page-contact .ct-path:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hard);
}

.page-contact .ct-path--amber {
  border-top: 6px solid var(--amber);
}

.page-contact .ct-path--cyan {
  border-top: 6px solid var(--cyan);
}

.page-contact .ct-path__tag {
  font-size: 11px;
  letter-spacing: 0.2em;
  font-weight: 700;
  color: var(--muted);
  margin: 0;
}

.page-contact .ct-path--amber .ct-path__tag {
  color: var(--amber);
}

.page-contact .ct-path--cyan .ct-path__tag {
  color: var(--cyan);
}

.page-contact .ct-path .h3 {
  margin: 0;
  font-size: clamp(1.35rem, 2.6vw, 1.8rem);
}

.page-contact .ct-path .prose {
  margin: 0;
}

.page-contact .ct-path__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .ct-path__list li {
  position: relative;
  padding-left: 16px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--muted);
}

.page-contact .ct-path__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  background: var(--line);
}

.page-contact .ct-path--amber .ct-path__list li::before {
  background: var(--amber);
}

.page-contact .ct-path--cyan .ct-path__list li::before {
  background: var(--cyan);
}

.page-contact .ct-path__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.page-contact .ct-path .btn {
  align-self: flex-start;
  margin-top: auto;
}

/* ---------- 客服渠道 ---------- */
.page-contact .ct-support__grid {
  align-items: start;
}

.page-contact .ct-channels {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--ct-line-w) solid var(--line);
}

.page-contact .ct-channel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 20px 0;
  border-bottom: var(--ct-line-w) solid var(--line);
}

.page-contact .ct-channel__key {
  font-size: 11px;
  letter-spacing: 0.2em;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
}

.page-contact .ct-channel__val {
  font-family: var(--font-mono);
  font-size: clamp(0.98rem, 2.1vw, 1.28rem);
  line-height: 1.5;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .ct-channel:first-child .ct-channel__val {
  color: var(--amber);
}

.page-contact .ct-channel:nth-child(2) .ct-channel__val {
  color: var(--cyan);
}

.page-contact .ct-channel__desc {
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
  max-width: 40ch;
}

.page-contact .ct-support__aside {
  display: grid;
  gap: 16px;
  margin-top: clamp(26px, 4vw, 0px);
}

.page-contact .ct-hours {
  padding: clamp(20px, 2.6vw, 28px);
}

.page-contact .ct-hours__big {
  font-size: clamp(1.6rem, 3.6vw, 2.4rem);
  color: var(--cyan);
  margin: 12px 0 10px;
  display: block;
}

.page-contact .ct-hours__sub {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .ct-hours__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.page-contact .ct-hours__list li {
  position: relative;
  padding-left: 14px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

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

.page-contact .ct-aside__link {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .ct-aside__link a {
  color: var(--mask, var(--cyan));
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

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

/* ---------- 合作方向 ---------- */
.page-contact .ct-partner__grid {
  align-items: start;
}

.page-contact .ct-tracks {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--ct-line-w) solid var(--line);
}

.page-contact .ct-track {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 16px;
  padding: 24px 0;
  border-bottom: var(--ct-line-w) solid var(--line);
}

.page-contact .ct-track__num {
  font-size: 15px;
  color: var(--cyan);
  letter-spacing: 0.08em;
  padding-top: 4px;
}

.page-contact .ct-track__body {
  display: grid;
  gap: 10px;
}

.page-contact .ct-track .h3 {
  margin: 0;
  font-size: clamp(1.15rem, 2.2vw, 1.5rem);
}

.page-contact .ct-track .prose {
  margin: 0;
}

.page-contact .ct-track__meta {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  padding-left: 14px;
  border-left: 2px solid var(--line);
}

.page-contact .ct-partner__media {
  margin-top: clamp(28px, 4vw, 0px);
  display: grid;
  gap: 18px;
}

.page-contact .media-frame__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: var(--ct-line-w) solid var(--line);
}

.page-contact .ct-partner__hint {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
  padding: 14px 16px;
  background: var(--ink);
  border-left: 3px solid var(--amber);
}

/* ---------- 合作流程 ---------- */
.page-contact .ct-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.page-contact .ct-step {
  position: relative;
  padding: 24px 0 22px;
  border-top: 3px solid var(--line);
}

.page-contact .ct-step::before {
  content: "";
  display: block;
  width: var(--ct-mark);
  height: var(--ct-mark);
  background: var(--cyan);
  margin-bottom: 16px;
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}

.page-contact .ct-step__idx {
  display: block;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--amber);
  margin-bottom: 8px;
}

.page-contact .ct-step .h3 {
  margin: 0 0 10px;
  font-size: clamp(1.1rem, 2vw, 1.35rem);
}

.page-contact .ct-step .prose {
  margin: 0 0 12px;
  font-size: 15px;
}

.page-contact .ct-step__time {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--cyan);
  font-family: var(--font-mono);
}

.page-contact .ct-process__foot {
  margin: clamp(28px, 4vw, 44px) 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.page-contact .ct-process__foot a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

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

/* ---------- 信息条 ---------- */
.page-contact .ct-infosec {
  padding-bottom: clamp(56px, 8vw, 104px);
}

.page-contact .ct-infobar {
  display: grid;
  grid-template-columns: 1fr;
  border: var(--ct-line-w) solid var(--line);
  background: var(--charcoal);
}

.page-contact .ct-infobar__cell {
  padding: 20px clamp(18px, 2.4vw, 26px);
  border-bottom: var(--ct-line-w) solid var(--line);
}

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

.page-contact .ct-infobar__key {
  margin: 0 0 6px;
  font-size: 11px;
  letter-spacing: 0.2em;
  font-weight: 700;
  color: var(--muted);
}

.page-contact .ct-infobar__val {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper);
}

.page-contact .ct-infobar__val.num {
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
  color: var(--amber);
}

/* ---------- 动效收敛 ---------- */
.page-contact .btn {
  min-height: 44px;
}

.page-contact a:focus-visible,
.page-contact .btn:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .ct-infobar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .ct-infobar__cell {
    border-bottom: var(--ct-line-w) solid var(--line);
    border-right: var(--ct-line-w) solid var(--line);
  }

  .page-contact .ct-infobar__cell:nth-child(2n) {
    border-right: 0;
  }

  .page-contact .ct-infobar__cell:nth-child(n + 3) {
    border-bottom: 0;
  }
}

@media (min-width: 780px) {
  .page-contact .ct-channel {
    grid-template-columns: 116px minmax(0, 1fr);
    gap: 8px 22px;
    align-items: baseline;
  }

  .page-contact .ct-channel__desc {
    grid-column: 2;
  }

  .page-contact .ct-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .ct-step {
    padding: 26px 22px 8px 0;
  }

  .page-contact .ct-step:not(:first-child) {
    padding-left: 22px;
    border-left: var(--ct-line-w) solid var(--line);
  }
}

@media (min-width: 900px) {
  .page-contact .ct-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-contact .ct-hero__media {
    align-self: center;
  }

  .page-contact .ct-paths {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .ct-support__aside {
    margin-top: 0;
  }

  .page-contact .ct-partner__media {
    margin-top: 0;
    position: sticky;
    top: calc(var(--topbar-h) + 24px);
  }

  .page-contact .ct-infobar {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .ct-infobar__cell {
    border-right: var(--ct-line-w) solid var(--line);
    border-bottom: 0;
  }

  .page-contact .ct-infobar__cell:last-child {
    border-right: 0;
  }
}

@media (min-width: 1200px) {
  .page-contact .ct-hero .display {
    margin-top: 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-path {
    transition: none;
  }

  .page-contact .ct-path:hover {
    transform: none;
  }
}

.page-contact {
  --mask: currentColor;
}