.page-contact {
  background: var(--ts-cream);
  color: var(--ts-graphite);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-contact .ct-crumb {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 16px clamp(20px, 5vw, 72px) 0;
}

.page-contact .breadcrumb {
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: 0.12em;
  color: var(--ts-graphite);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.page-contact .breadcrumb a {
  color: var(--ts-graphite);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 160ms var(--ease), color 160ms var(--ease);
}

.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  color: var(--ts-blue);
  border-bottom-color: var(--ts-yellow);
}

.page-contact .breadcrumb span[aria-hidden="true"] {
  color: var(--ts-mist);
}

.page-contact .eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ts-blue);
  margin: 0 0 12px;
  padding-left: 12px;
  position: relative;
}

.page-contact .eyebrow::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.42em;
  width: 3px;
  height: 0.95em;
  background: var(--ts-yellow);
}

.page-contact .ct-h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 5vw, 44px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
}

.page-contact .ct-h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(23px, 2.5vw, 30px);
  line-height: 1.16;
  letter-spacing: -0.015em;
  margin: 0 0 12px;
  color: var(--ts-ink);
}

.page-contact .ct-lead {
  font-size: var(--fs-3);
  line-height: 1.7;
  margin: 0 0 36px;
  max-width: 34em;
}

/* ---------- 首屏双栏 ---------- */

.page-contact .ct-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  max-width: var(--maxw);
  margin: 20px auto 0;
  border-top: 1px solid var(--ts-mist);
  border-bottom: 1px solid var(--ts-mist);
}

.page-contact .ct-hero-left {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--ts-blue);
  color: var(--ts-cream);
  padding: 44px clamp(20px, 5vw, 56px) 64px;
}

.page-contact .ct-hero-left .eyebrow {
  color: var(--ts-cream);
}

.page-contact .ct-hero-left .ct-h1 {
  color: var(--ts-white);
}

.page-contact .ct-hero-left .ct-lead {
  color: rgba(244, 241, 234, 0.82);
}

.page-contact .ct-hero-left > *:not(.ct-hero-media) {
  position: relative;
  z-index: 1;
}

.page-contact .ct-hero-media {
  position: absolute;
  inset: auto 0 0 0;
  height: 62%;
  z-index: 0;
  pointer-events: none;
}

.page-contact .ct-hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, var(--ts-blue) 0%, rgba(10, 42, 94, 0.15) 70%);
}

.page-contact .ct-hero-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
  mix-blend-mode: luminosity;
}

.page-contact .ct-contact-line {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px 0;
  border-top: 1px solid rgba(201, 210, 221, 0.24);
}

.page-contact .ct-label {
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ts-yellow);
}

.page-contact .ct-phone {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(27px, 6.6vw, 44px);
  line-height: 1.1;
  letter-spacing: 0.02em;
  color: var(--ts-white);
  text-decoration: none;
  align-self: flex-start;
  border-bottom: 2px solid var(--ts-yellow);
  padding-bottom: 3px;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-contact .ct-phone:hover,
.page-contact .ct-phone:focus-visible {
  color: var(--ts-yellow);
  border-bottom-color: var(--ts-white);
}

.page-contact .ct-mail {
  font-family: var(--font-mono);
  font-size: clamp(13px, 2.4vw, 18px);
  line-height: 1.4;
  color: var(--ts-white);
  text-decoration: none;
  word-break: break-all;
  align-self: flex-start;
  border-bottom: 1px solid rgba(255, 209, 0, 0.5);
  padding-bottom: 2px;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-contact .ct-mail:hover,
.page-contact .ct-mail:focus-visible {
  color: var(--ts-yellow);
  border-bottom-color: var(--ts-yellow);
}

.page-contact .ct-note {
  font-size: var(--fs-1);
  color: rgba(244, 241, 234, 0.62);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

.page-contact .ct-addr {
  margin-top: 24px;
  border: 1px solid rgba(201, 210, 221, 0.3);
  padding: 14px 16px;
  max-width: 420px;
}

.page-contact .ct-addr-label {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(244, 241, 234, 0.6);
  margin-bottom: 6px;
}

.page-contact .ct-addr p {
  margin: 0;
  font-size: var(--fs-2);
  line-height: 1.6;
  color: rgba(244, 241, 234, 0.9);
}

/* 右栏：写信要点 */

.page-contact .ct-hero-right {
  background: var(--ts-cream);
  padding: 44px clamp(20px, 5vw, 56px) 56px;
}

.page-contact .ct-panel-intro {
  font-size: var(--fs-2);
  line-height: 1.75;
  margin: 0 0 20px;
  color: var(--ts-graphite);
}

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

.page-contact .ct-step {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 16px;
  padding: 20px 0;
  border-top: 1px solid var(--ts-mist);
}

.page-contact .ct-step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 30px;
  background: var(--ts-yellow);
  color: var(--ts-blue);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--fs-2);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.page-contact .ct-step-body h3 {
  font-size: var(--fs-3);
  font-weight: 700;
  margin: 0 0 6px;
  color: var(--ts-ink);
  line-height: 1.4;
}

.page-contact .ct-step-body p {
  margin: 0;
  font-size: var(--fs-2);
  line-height: 1.75;
  color: var(--ts-graphite);
}

.page-contact .ct-step-body details {
  margin-top: 10px;
  border-top: 1px dashed var(--ts-mist);
  padding-top: 8px;
}

.page-contact .ct-step-body summary {
  cursor: pointer;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: 0.08em;
  color: var(--ts-blue);
  padding: 4px 0;
}

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

.page-contact .ct-step-body summary::before {
  content: "+";
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--ts-red);
  font-size: var(--fs-2);
  line-height: 1;
}

.page-contact .ct-step-body details[open] summary::before {
  content: "−";
}

.page-contact .ct-step-body details ul {
  margin: 8px 0 0;
  padding: 0 0 0 16px;
  list-style: none;
}

.page-contact .ct-step-body details li {
  position: relative;
  font-size: var(--fs-2);
  line-height: 1.7;
  color: var(--ts-graphite);
  padding-left: 12px;
}

.page-contact .ct-step-body details li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 5px;
  height: 1px;
  background: var(--ts-clay);
}

/* ---------- 通用区块 ---------- */

.page-contact .ct-section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 56px clamp(20px, 5vw, 72px);
  border-bottom: 1px solid var(--ts-mist);
}

.page-contact .ct-section-head {
  max-width: 46em;
  margin: 0 0 32px;
}

.page-contact .ct-section-desc {
  font-size: var(--fs-2);
  line-height: 1.75;
  margin: 0;
  color: var(--ts-graphite);
}

/* ---------- 渠道卡 ---------- */

.page-contact .ct-channels {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-contact .ct-channel {
  position: relative;
  background: var(--ts-white);
  border: 1px solid var(--ts-mist);
  padding: 26px 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow: hidden;
  transition: border-color 160ms var(--ease), transform 160ms var(--ease), box-shadow 160ms var(--ease);
}

.page-contact .ct-channel::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 0;
  height: 0;
  background: var(--ts-yellow);
  transition: width 160ms var(--ease), height 160ms var(--ease);
}

.page-contact .ct-channel:hover,
.page-contact .ct-channel:focus-within {
  border-color: var(--ts-yellow);
  transform: translateY(-2px);
  box-shadow: 0 18px 40px -32px rgba(10, 42, 94, 0.6);
}

.page-contact .ct-channel:hover::after,
.page-contact .ct-channel:focus-within::after {
  width: 14px;
  height: 14px;
}

.page-contact .ct-channel .tag {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: 0.1em;
  padding: 4px 8px;
  background: var(--ts-cream);
  color: var(--ts-graphite);
  border: 1px solid var(--ts-mist);
}

.page-contact .ct-channel .tag--clay {
  background: rgba(180, 101, 63, 0.12);
  border-color: rgba(180, 101, 63, 0.3);
  color: var(--ts-clay);
}

.page-contact .ct-channel .tag--red {
  background: rgba(200, 16, 46, 0.08);
  border-color: rgba(200, 16, 46, 0.28);
  color: var(--ts-red);
}

.page-contact .ct-channel h3 {
  font-size: var(--fs-3);
  font-weight: 700;
  line-height: 1.4;
  margin: 0;
  color: var(--ts-ink);
}

.page-contact .ct-channel p {
  margin: 0;
  font-size: var(--fs-2);
  line-height: 1.75;
  color: var(--ts-graphite);
}

.page-contact .ct-channel-extra {
  padding-left: 12px;
  border-left: 3px solid var(--ts-mist);
  font-size: var(--fs-2);
  color: var(--ts-graphite);
  transition: border-color 160ms var(--ease);
}

.page-contact .ct-channel:hover .ct-channel-extra,
.page-contact .ct-channel:focus-within .ct-channel-extra {
  border-left-color: var(--ts-yellow);
}

.page-contact .ct-channel-link {
  margin-top: auto;
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: 0.08em;
  color: var(--ts-blue);
  text-decoration: none;
  border-bottom: 1px solid var(--ts-mist);
  padding-bottom: 3px;
  transition: border-color 160ms var(--ease), color 160ms var(--ease);
  word-break: break-all;
}

.page-contact .ct-channel-link:hover,
.page-contact .ct-channel-link:focus-visible {
  color: var(--ts-red);
  border-bottom-color: var(--ts-yellow);
}

/* ---------- 响应时间线 ---------- */

.page-contact .ct-timeline {
  list-style: none;
  margin: 0 0 40px;
  padding: 0;
}

.page-contact .ct-timeline li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: 20px 0;
  border-top: 1px solid var(--ts-mist);
}

.page-contact .ct-timeline li:last-child {
  border-bottom: 1px solid var(--ts-mist);
}

.page-contact .ct-time {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--fs-3);
  color: var(--ts-blue);
  letter-spacing: 0.02em;
  border-left: 3px solid var(--ts-yellow);
  padding-left: 12px;
  line-height: 1.3;
}

.page-contact .ct-time-body h3 {
  font-size: var(--fs-3);
  font-weight: 700;
  margin: 0 0 6px;
  color: var(--ts-ink);
  line-height: 1.4;
}

.page-contact .ct-time-body p {
  margin: 0;
  font-size: var(--fs-2);
  line-height: 1.75;
  color: var(--ts-graphite);
  max-width: 46em;
}

.page-contact .ct-stat-strip {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  background: var(--ts-blue);
  padding: 28px 24px;
}

.page-contact .ct-stat-strip .stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  border-left: 3px solid var(--ts-yellow);
  padding-left: 14px;
}

.page-contact .ct-stat-strip .stat-value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(28px, 4.4vw, 40px);
  line-height: 1.1;
  color: var(--ts-white);
  letter-spacing: 0.01em;
}

.page-contact .ct-stat-strip .stat-note {
  font-size: var(--fs-1);
  line-height: 1.6;
  color: rgba(244, 241, 234, 0.7);
}

/* ---------- 合作 ---------- */

.page-contact .ct-collab {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 56px clamp(20px, 5vw, 72px);
  border-bottom: 1px solid var(--ts-mist);
}

.page-contact .ct-collab-text .ct-section-desc {
  margin-bottom: 24px;
}

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

.page-contact .ct-collab-list li {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 16px;
  padding: 20px 0;
  border-top: 1px solid var(--ts-mist);
}

.page-contact .ct-collab-list li:last-child {
  border-bottom: 1px solid var(--ts-mist);
}

.page-contact .ct-collab-list .index-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--fs-2);
  color: var(--ts-clay);
  letter-spacing: 0.08em;
  line-height: 1.6;
}

.page-contact .ct-collab-list h3 {
  font-size: var(--fs-3);
  font-weight: 700;
  margin: 0 0 6px;
  color: var(--ts-ink);
  line-height: 1.4;
}

.page-contact .ct-collab-list p {
  margin: 0;
  font-size: var(--fs-2);
  line-height: 1.75;
  color: var(--ts-graphite);
}

.page-contact .ct-collab-media {
  margin: 0;
  background: var(--ts-white);
  border: 1px solid var(--ts-mist);
  padding: 8px 8px 12px;
}

.page-contact .ct-collab-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 9 / 7;
  object-fit: cover;
  max-width: 100%;
  background: var(--ts-mist);
}

.page-contact .ct-collab-media .media-caption {
  display: block;
  margin-top: 10px;
  padding: 0 4px;
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--ts-graphite);
}

/* ---------- 收口 ---------- */

.page-contact .ct-next {
  background: var(--ts-blue-deep);
  color: var(--ts-cream);
  padding: 56px clamp(20px, 5vw, 72px) 64px;
}

.page-contact .ct-next-inner {
  max-width: var(--maxw);
  margin: 0 auto;
}

.page-contact .ct-next .eyebrow {
  color: var(--ts-yellow);
}

.page-contact .ct-next .ct-h2 {
  color: var(--ts-white);
}

.page-contact .ct-next-desc {
  font-size: var(--fs-2);
  line-height: 1.75;
  margin: 0 0 28px;
  color: rgba(244, 241, 234, 0.72);
  max-width: 44em;
}

.page-contact .ct-next-links {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border-top: 1px solid rgba(201, 210, 221, 0.22);
}

.page-contact .ct-next-link {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 0 16px 14px;
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 210, 221, 0.22);
  border-left: 3px solid transparent;
  transition: border-left-color 160ms var(--ease), background-color 160ms var(--ease);
}

.page-contact .ct-next-link:hover,
.page-contact .ct-next-link:focus-visible {
  border-left-color: var(--ts-yellow);
  background: rgba(255, 209, 0, 0.06);
}

.page-contact .ct-next-name {
  font-size: var(--fs-3);
  font-weight: 700;
  color: var(--ts-white);
  line-height: 1.4;
}

.page-contact .ct-next-sub {
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: 0.04em;
  line-height: 1.6;
  color: rgba(244, 241, 234, 0.6);
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-channel,
  .page-contact .ct-channel::after,
  .page-contact .ct-next-link,
  .page-contact .ct-phone,
  .page-contact .ct-mail {
    transition: color 120ms linear, border-color 120ms linear, background-color 120ms linear;
  }

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

@media (min-width: 720px) {
  .page-contact .ct-channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-contact .ct-timeline li {
    grid-template-columns: 180px minmax(0, 1fr);
    gap: 24px;
    align-items: start;
  }

  .page-contact .ct-stat-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
    padding: 32px;
  }

  .page-contact .ct-next-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 32px;
  }
}

@media (min-width: 960px) {
  .page-contact .ct-hero {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .page-contact .ct-hero-left {
    padding: 64px 48px 80px;
  }

  .page-contact .ct-hero-right {
    padding: 64px 48px 72px;
    border-left: 1px solid var(--ts-mist);
  }

  .page-contact .ct-collab {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 56px;
    align-items: start;
    padding-top: 72px;
    padding-bottom: 72px;
  }

  .page-contact .ct-section {
    padding-top: 72px;
    padding-bottom: 72px;
  }
}

@media (min-width: 1200px) {
  .page-contact .ct-hero-left {
    padding: 72px 56px 88px;
  }

  .page-contact .ct-hero-right {
    padding: 72px 56px 80px;
  }

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

  .page-contact .ct-next-link {
    border-left: none;
    border-top: 3px solid transparent;
    padding: 18px 16px 18px 0;
  }

  .page-contact .ct-next-link:hover,
  .page-contact .ct-next-link:focus-visible {
    border-left-color: transparent;
    border-top-color: var(--ts-yellow);
    background: transparent;
  }
}