.page-contact {
  --ct-accent-default: #C6FF3E;
  --ct-ink: #22314D;
  --ct-ink-soft: #2B3A55;
  --ct-pad: clamp(20px, 3vw, 32px);
  display: block;
  background: var(--space-900);
  color: var(--paper-white);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-contact .shell {
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---------- 页头 ---------- */
.page-contact .ct-hero {
  padding-block: clamp(24px, 4vw, 52px) clamp(36px, 6vw, 72px);
  background:
    radial-gradient(115% 85% at 88% -12%, rgba(46, 74, 120, 0.62), rgba(10, 23, 48, 0) 62%),
    var(--space-900);
  border-bottom: 2px solid var(--line);
}

.page-contact .ct-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-contact .ct-crumbs a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-contact .ct-crumbs a:hover {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

.page-contact .ct-crumbs [aria-current="page"] {
  color: var(--paper-white);
}

.page-contact .ct-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: clamp(22px, 3vw, 34px) 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--lime);
}

.page-contact .ct-label::before {
  content: "";
  width: 22px;
  height: 2px;
  background: currentColor;
}

.page-contact .ct-title {
  margin: clamp(14px, 2.4vw, 24px) 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(38px, 8.6vw, 112px);
  line-height: 0.94;
  letter-spacing: -0.03em;
  color: var(--paper-white);
}

.page-contact .ct-lede {
  margin: clamp(18px, 2.4vw, 28px) 0 0;
  max-width: 62ch;
  font-size: clamp(16px, 1.5vw, 19px);
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .ct-hero__media {
  position: relative;
  margin: clamp(28px, 4vw, 46px) 0 0;
  border: 2px solid var(--line);
  border-radius: var(--card-radius);
  overflow: hidden;
  background: var(--midnight);
  box-shadow: var(--shadow-hard-lg);
}

.page-contact .ct-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 8;
  object-fit: cover;
}

.page-contact .ct-caption {
  position: absolute;
  left: 0;
  bottom: 0;
  margin: 0;
  padding: 10px 18px;
  background: rgba(13, 17, 23, 0.82);
  border-top: 2px solid var(--lime);
  border-right: 2px solid var(--lime);
  border-radius: 0 var(--card-radius) 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--paper-white);
}

/* ---------- 通用分节 ---------- */
.page-contact .ct-section {
  padding-block: clamp(48px, 7vw, 96px);
}

.page-contact .ct-head {
  max-width: 760px;
}

.page-contact .ct-h2 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 4.2vw, 52px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--paper-white);
}

.page-contact .ct-p {
  margin: 18px 0 0;
  max-width: 68ch;
  font-size: clamp(16px, 1.4vw, 17px);
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .ct-aside {
  margin: 20px 0 0;
  padding-left: 16px;
  border-left: 3px solid var(--amber);
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .ct-slash {
  height: clamp(20px, 3vw, 36px);
  background: linear-gradient(
    96deg,
    var(--space-900) 0 34%,
    var(--lime) 34% 40%,
    var(--amber) 40% 46%,
    var(--paper-white) 46% 100%
  );
}

/* ---------- 渠道卡 ---------- */
.page-contact .ct-channels {
  margin-top: clamp(28px, 4vw, 48px);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2vw, 24px);
}

.page-contact .ct-channel {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: var(--ct-pad);
  background: var(--midnight);
  border: 2px solid var(--line);
  border-radius: var(--card-radius);
  box-shadow: var(--shadow-hard);
  transition: transform 240ms var(--ease), border-color 240ms var(--ease), box-shadow 240ms var(--ease);
}

.page-contact .ct-channel::before {
  content: "";
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  height: 6px;
  border-radius: var(--card-radius) var(--card-radius) 0 0;
  background: var(--ct-accent, var(--ct-accent-default));
}

.page-contact .ct-channel:hover,
.page-contact .ct-channel:focus-within {
  transform: translateY(-4px);
  border-color: var(--lime);
  box-shadow: var(--shadow-hard-lg);
}

.page-contact .ct-channel__tag {
  margin: 4px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ct-accent, var(--ct-accent-default));
}

.page-contact .ct-channel__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 2.2vw, 26px);
  line-height: 1.2;
  color: var(--paper-white);
}

.page-contact .ct-channel__value {
  margin: 0;
  padding: 10px 12px;
  background: rgba(10, 23, 48, 0.78);
  border: 1px solid var(--line);
  border-radius: 10px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(14px, 1.4vw, 16px);
  line-height: 1.6;
  color: var(--paper-white);
  word-break: break-word;
}

.page-contact .ct-channel__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .ct-channel__list li {
  position: relative;
  padding-left: 16px;
}

.page-contact .ct-channel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  border-radius: 1px;
  background: var(--ct-accent, var(--ct-accent-default));
}

.page-contact .ct-channel__note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
  opacity: 0.9;
}

.page-contact .ct-copy {
  margin-top: auto;
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
  padding: 10px 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--space-900);
  background: var(--lime);
  border: 2px solid var(--lime);
  border-radius: var(--pill);
  cursor: pointer;
  transition: background 200ms var(--ease), color 200ms var(--ease), border-color 200ms var(--ease), transform 200ms var(--ease);
}

.page-contact .ct-copy:hover {
  background: var(--paper-white);
  border-color: var(--paper-white);
  transform: translateY(-2px);
}

.page-contact .ct-copy:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
}

.page-contact .ct-copy.is-copied {
  background: var(--amber);
  border-color: var(--amber);
  color: var(--graphite);
}

/* ---------- 浅色邮件区 ---------- */
.page-contact .ct-light {
  background: var(--paper-white);
  color: var(--ct-ink);
}

.page-contact .ct-light .ct-label {
  margin-top: 0;
  color: #2E4A78;
}

.page-contact .ct-light .ct-h2 {
  color: var(--space-900);
}

.page-contact .ct-light .ct-p {
  color: var(--ct-ink-soft);
}

.page-contact .ct-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

.page-contact .ct-steps {
  counter-reset: ct-step;
  list-style: none;
  margin: clamp(22px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .ct-steps li {
  counter-increment: ct-step;
  position: relative;
  padding: 16px 18px 16px 66px;
  background: #FFFFFF;
  border: 2px solid var(--space-900);
  border-radius: 14px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ct-ink);
}

.page-contact .ct-steps li::before {
  content: counter(ct-step, decimal-leading-zero);
  position: absolute;
  left: 16px;
  top: 16px;
  padding: 2px 7px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 14px;
  color: var(--space-900);
  background: var(--lime);
  border: 2px solid var(--space-900);
  border-radius: 5px;
}

.page-contact .ct-figure {
  margin: 0;
  position: relative;
  border: 2px solid var(--space-900);
  border-radius: var(--card-radius);
  overflow: hidden;
  background: var(--midnight);
  box-shadow: var(--shadow-hard);
}

.page-contact .ct-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-contact .ct-caption--dark {
  background: rgba(13, 17, 23, 0.86);
}

/* ---------- 电话面板 ---------- */
.page-contact .ct-call {
  background:
    linear-gradient(140deg, rgba(198, 255, 62, 0.09), rgba(255, 139, 46, 0.07) 52%, rgba(10, 23, 48, 0) 100%),
    var(--space-900);
}

.page-contact .ct-call__panel {
  padding: clamp(24px, 4vw, 52px);
  background: var(--midnight);
  border: 2px solid var(--line);
  border-radius: var(--card-radius);
  box-shadow: var(--shadow-hard-lg);
}

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

.page-contact .ct-phone {
  margin: clamp(18px, 3vw, 26px) 0 0;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(26px, 5.4vw, 56px);
  line-height: 1.1;
  letter-spacing: 0.01em;
  color: var(--lime);
  font-variant-numeric: tabular-nums;
  word-break: break-word;
}

.page-contact .ct-call__meta {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .ct-chip {
  display: inline-flex;
  align-items: center;
  padding: 7px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--paper-white);
  border: 2px solid var(--line);
  border-radius: var(--pill);
}

.page-contact .ct-chip--warn {
  border-color: var(--amber);
  color: var(--amber);
}

.page-contact .ct-copy--inline {
  margin-top: 22px;
}

.page-contact .ct-aside--dark {
  margin-top: 22px;
  color: var(--mist);
}

/* ---------- 地址区 ---------- */
.page-contact .ct-address {
  margin-top: clamp(28px, 4vw, 44px);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 44px);
  align-items: start;
}

.page-contact .ct-address__lines {
  font-family: var(--font-mono);
  font-size: clamp(14px, 1.4vw, 16px);
  line-height: 1.9;
  color: var(--paper-white);
  font-variant-numeric: tabular-nums;
}

.page-contact .ct-address__row {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--line);
}

.page-contact .ct-address__row:first-child {
  border-top: 1px dashed var(--line);
}

.page-contact .ct-address__key {
  color: var(--mist);
  letter-spacing: 0.14em;
  font-size: 12px;
  text-transform: uppercase;
  padding-top: 4px;
}

.page-contact .ct-address__val {
  color: var(--paper-white);
  word-break: break-word;
}

.page-contact .ct-details {
  margin-top: clamp(20px, 3vw, 28px);
  background: var(--midnight);
  border: 2px solid var(--line);
  border-radius: 14px;
  transition: border-color 220ms var(--ease), box-shadow 220ms var(--ease);
}

.page-contact .ct-details[open] {
  border-color: var(--lime);
  box-shadow: inset 4px 0 0 var(--lime);
}

.page-contact .ct-details summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 20px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(16px, 1.6vw, 18px);
  color: var(--paper-white);
}

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

.page-contact .ct-details summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1;
  color: var(--lime);
}

.page-contact .ct-details[open] summary::after {
  content: "\2013";
}

.page-contact .ct-details summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: -4px;
}

.page-contact .ct-details__body {
  padding: 0 20px 20px;
}

.page-contact .ct-details__body ul {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 10px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .ct-map {
  display: block;
  width: 100%;
  height: auto;
  border: 2px solid var(--line);
  border-radius: var(--card-radius);
  background: var(--space-900);
}

/* ---------- 纠错 / 协作 ---------- */
.page-contact .ct-pair-section {
  padding-top: 0;
}

.page-contact .ct-pair {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2vw, 24px);
}

.page-contact .ct-panel {
  padding: var(--ct-pad);
  background: var(--midnight);
  border: 2px solid var(--line);
  border-radius: var(--card-radius);
  box-shadow: var(--shadow-hard);
}

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

.page-contact .ct-panel--correct {
  border-left: 6px solid var(--amber);
}

.page-contact .ct-panel--correct .ct-label {
  color: var(--amber);
}

.page-contact .ct-panel--coop {
  border-left: 6px solid var(--lime);
}

.page-contact .ct-mini {
  list-style: none;
  margin: clamp(18px, 2.4vw, 24px) 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .ct-mini li {
  position: relative;
  padding-left: 18px;
}

.page-contact .ct-mini li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 8px;
  height: 2px;
  background: var(--mist);
}

/* ---------- 收尾索引 ---------- */
.page-contact .ct-index-section {
  border-top: 2px solid var(--line);
}

.page-contact .ct-index {
  list-style: none;
  margin: clamp(24px, 4vw, 36px) 0 0;
  padding: 0;
  border-top: 2px solid var(--line);
}

.page-contact .ct-index li {
  border-bottom: 2px solid var(--line);
}

.page-contact .ct-index a {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 4px;
  text-decoration: none;
  color: var(--paper-white);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(17px, 2.4vw, 25px);
  line-height: 1.35;
  transition: color 180ms var(--ease), padding-left 180ms var(--ease);
}

.page-contact .ct-index a:hover {
  color: var(--lime);
  padding-left: 14px;
}

.page-contact .ct-index a:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 4px;
}

.page-contact .ct-index__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-contact .ct-channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .ct-call__panel {
    display: block;
  }
}

@media (min-width: 900px) {
  .page-contact .ct-split {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

  .page-contact .ct-address {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  }

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

  .page-contact .ct-figure {
    margin-top: 8px;
  }
}

@media (max-width: 520px) {
  .page-contact .ct-address__row {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .page-contact .ct-steps li {
    padding-left: 20px;
    padding-top: 46px;
  }

  .page-contact .ct-steps li::before {
    top: 12px;
  }

  .page-contact .ct-caption {
    position: static;
    border-radius: 0;
    border-right: none;
    border-top-width: 2px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-channel,
  .page-contact .ct-copy,
  .page-contact .ct-index a,
  .page-contact .ct-details {
    transition: none;
  }

  .page-contact .ct-channel:hover,
  .page-contact .ct-channel:focus-within,
  .page-contact .ct-copy:hover {
    transform: none;
  }
}

.page-contact {
  --ct-accent: transparent;
}