.page-contact {
  --ct-line: rgba(111, 179, 191, 0.42);
  --ct-soft: rgba(111, 179, 191, 0.14);
  background: var(--mist);
  color: var(--ink);
  overflow-x: hidden;
}

@supports (overflow-x: clip) {
  .page-contact { overflow-x: clip; }
}

.page-contact img {
  max-width: 100%;
  height: auto;
  display: block;
}

.page-contact .media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  position: relative;
  padding: clamp(18px, 3.5vw, 36px) 0 clamp(36px, 6vw, 72px);
}

.page-contact .ct-hero::before {
  content: "";
  position: absolute;
  top: -18%;
  right: -14%;
  width: min(580px, 68vw);
  height: min(580px, 68vw);
  background: linear-gradient(142deg, var(--aqua) 0%, var(--mint) 58%, rgba(168, 216, 206, 0) 62%);
  clip-path: polygon(0 0, 100% 0, 100% 70%, 20% 100%);
  opacity: 0.62;
  transform: rotate(-7deg);
  pointer-events: none;
  z-index: 0;
}

.page-contact .ct-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(26px, 4vw, 44px);
}

.page-contact .ct-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 8vw, 66px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 14px 0 18px;
  max-width: 13ch;
}

.page-contact .ct-hero .lead {
  max-width: 34em;
}

.page-contact .ct-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-contact .ct-index {
  border-left: 2px solid var(--lane);
  padding-left: 16px;
}

.page-contact .ct-index-title {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--rock);
}

.page-contact .ct-index ul {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
}

.page-contact .ct-index a {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 10px 0;
  color: var(--deep);
  text-decoration: none;
  font-size: 15px;
  border-bottom: 1px dashed var(--ct-line);
  transition: color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}

.page-contact .ct-index li:last-child a {
  border-bottom: 0;
}

.page-contact .ct-index a:hover,
.page-contact .ct-index a:focus-visible {
  color: var(--ink);
  padding-left: 6px;
}

.page-contact .ct-index .mono {
  font-size: 12px;
  color: var(--lane);
}

/* ---------- 渠道 ---------- */
.page-contact .ct-ch-head {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
}

.page-contact .ct-ch-sub,
.page-contact .ct-sub {
  color: var(--rock);
  font-size: 15px;
  line-height: 1.85;
  max-width: 32em;
  margin: 10px 0 0;
}

.page-contact .ct-ch-fig {
  margin: 0;
}

.page-contact .ct-guide {
  margin: clamp(24px, 4vw, 40px) 0 clamp(22px, 3vw, 32px);
  padding: 18px 20px;
  background: var(--aqua);
  border-left: 3px solid var(--lane);
  display: grid;
  gap: 12px;
}

.page-contact .ct-guide-label {
  margin: 0;
  font-size: 13px;
  font-weight: 700;
  color: var(--deep);
}

.page-contact .ct-pills {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact .ct-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-contact .ct-radio + label {
  cursor: pointer;
  padding: 8px 15px;
  border-radius: 999px;
  border: 1px solid var(--lane);
  background: var(--mist);
  color: var(--deep);
  font-size: 14px;
  line-height: 1.4;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .ct-radio:checked + label {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--mist);
}

.page-contact .ct-radio:focus-visible + label {
  outline: 2px solid var(--coral);
  outline-offset: 2px;
}

.page-contact .ct-hint {
  display: none;
  margin: 0;
  padding-top: 12px;
  border-top: 1px dashed var(--lane);
  font-size: 15px;
  line-height: 1.8;
  color: var(--deep);
}

.page-contact .ct-hint--a { display: block; }

.page-contact .ct-guide:has(#ct-topic-b:checked) .ct-hint--a,
.page-contact .ct-guide:has(#ct-topic-c:checked) .ct-hint--a { display: none; }

.page-contact .ct-guide:has(#ct-topic-b:checked) .ct-hint--b,
.page-contact .ct-guide:has(#ct-topic-c:checked) .ct-hint--c { display: block; }

.page-contact .ct-cards {
  display: grid;
  gap: 16px;
}

.page-contact .ct-card {
  display: grid;
  align-content: start;
  gap: 10px;
  padding: clamp(18px, 3vw, 26px);
  background: #fff;
  border: 1px solid var(--ct-line);
  border-radius: var(--radius);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-contact .ct-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 44px -30px rgba(16, 42, 56, 0.55);
}

.page-contact .ct-card--mail { border-top: 3px solid var(--deep); }
.page-contact .ct-card--phone { border-top: 3px solid var(--mint); }

.page-contact .ct-card--visit {
  border-top: 3px solid var(--lane);
  background: var(--clay);
}

.page-contact .ct-card-tag {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--rock);
}

.page-contact .ct-card-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 21px;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.page-contact .ct-card-value {
  margin: 2px 0 0;
  font-size: clamp(15px, 2vw, 18px);
  font-weight: 600;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.page-contact .ct-card-text {
  margin: 4px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--rock);
}

.page-contact .ct-card-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 4px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--ct-line);
  font-size: 13px;
  color: var(--deep);
  transition: color var(--dur) var(--ease);
}

.page-contact .ct-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--lane);
  flex: none;
  transition: background var(--dur) var(--ease);
}

.page-contact .ct-card:hover .ct-card-meta { color: var(--moss); }
.page-contact .ct-card:hover .ct-dot { background: var(--coral); }

.page-contact .ct-copy {
  justify-self: start;
  padding: 7px 15px;
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--deep);
  background: transparent;
  border: 1px solid var(--lane);
  border-radius: 999px;
  cursor: pointer;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .ct-copy:hover,
.page-contact .ct-copy:focus-visible {
  background: var(--coral-mist);
  border-color: var(--coral);
  color: var(--ink);
}

.page-contact .ct-copy--dark {
  color: var(--mist);
  border-color: var(--lane);
}

.page-contact .ct-copy--dark:hover,
.page-contact .ct-copy--dark:focus-visible {
  background: var(--coral);
  border-color: var(--coral);
  color: var(--ink);
}

/* ---------- 材料清单 ---------- */
.page-contact .ct-mat-grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

.page-contact .ct-checklist {
  list-style: none;
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
  border-top: 1px solid var(--ct-line);
}

.page-contact .ct-check {
  border-bottom: 1px solid var(--ct-line);
}

.page-contact .ct-check-row {
  display: grid;
  grid-template-columns: 20px 1fr;
  column-gap: 14px;
  align-items: start;
  padding: 16px 0;
  cursor: pointer;
}

.page-contact .ct-box {
  width: 20px;
  height: 20px;
  margin: 2px 0 0;
  accent-color: var(--moss);
  cursor: pointer;
}

.page-contact .ct-check-head {
  display: block;
}

.page-contact .ct-check-num {
  font-size: 12px;
  color: var(--lane);
  margin-right: 8px;
}

.page-contact .ct-check-head strong {
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--ink);
  transition: color var(--dur) var(--ease);
}

.page-contact .ct-check-text {
  display: block;
  margin-top: 5px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--rock);
}

.page-contact .ct-box:checked ~ .ct-check-body .ct-check-head strong {
  color: var(--moss);
}

.page-contact .ct-ready {
  margin: 16px 0 0;
  padding: 12px 16px;
  border-left: 3px solid var(--lane);
  background: var(--ct-soft);
  color: var(--deep);
  font-size: 14px;
  line-height: 1.7;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .ct-checklist:not(:has(input:not(:checked))) + .ct-ready {
  border-left-color: var(--moss);
  background: rgba(47, 125, 107, 0.1);
  color: var(--moss);
}

.page-contact .ct-mat-fig {
  margin: 0;
}

.page-contact .ct-figcap {
  margin-top: 10px;
  font-size: 13px;
  color: var(--rock);
  line-height: 1.7;
}

/* ---------- 回复节奏 ---------- */
.page-contact .ct-resp-list {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  border-top: 1px solid var(--ct-line);
}

.page-contact .ct-resp-list li {
  display: grid;
  gap: 8px;
  padding: 20px 0;
  border-bottom: 1px solid var(--ct-line);
}

.page-contact .ct-resp-time {
  font-size: clamp(19px, 2.4vw, 25px);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--deep);
}

.page-contact .ct-resp-body h3 {
  margin: 0 0 5px;
  font-family: var(--font-display);
  font-size: 17px;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .ct-resp-body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--rock);
  max-width: 46em;
}

/* ---------- 合作与纠错 ---------- */
.page-contact .ct-coop-list {
  margin-top: clamp(22px, 3vw, 30px);
  border-top: 1px solid var(--ct-line);
}

.page-contact .ct-coop-list article {
  display: grid;
  gap: 6px;
  padding: 22px 0;
  border-bottom: 1px solid var(--ct-line);
}

.page-contact .ct-coop-code {
  font-size: 13px;
  color: var(--coral);
  letter-spacing: 0.1em;
}

.page-contact .ct-coop-list h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 19px;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .ct-coop-list p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--rock);
  max-width: 44em;
}

.page-contact .ct-coop-note {
  margin: 20px 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--mint);
  font-size: 14px;
  line-height: 1.85;
  color: var(--deep);
}

.page-contact .ct-coop-note a {
  color: var(--deep);
  text-decoration: underline;
  text-decoration-color: var(--lane);
  text-underline-offset: 3px;
}

.page-contact .ct-coop-note a:hover {
  text-decoration-color: var(--coral);
}

/* ---------- 到访与信件 ---------- */
.page-contact .ct-visit-grid {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
}

.page-contact .ct-visit-panel {
  background: var(--ink);
  color: var(--mist);
  padding: clamp(24px, 4vw, 36px);
}

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

.page-contact .ct-visit-addr {
  margin: 14px 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.6vw, 26px);
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--mist);
}

.page-contact .ct-visit-note {
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(238, 246, 247, 0.78);
}

.page-contact .ct-steps {
  list-style: none;
  margin: clamp(18px, 3vw, 26px) 0 0;
  padding: 0;
}

.page-contact .ct-steps li {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px dashed var(--ct-line);
}

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

.page-contact .ct-steps .mono {
  font-size: 13px;
  color: var(--lane);
  padding-top: 2px;
}

.page-contact .ct-steps p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--rock);
}

/* ---------- 收尾 ---------- */
.page-contact .ct-cta-inner {
  display: grid;
  gap: 22px;
  align-items: center;
  padding: clamp(24px, 4vw, 38px);
  background: var(--aqua);
  border-radius: var(--radius);
}

.page-contact .ct-cta-title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 30px);
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-contact .ct-cta-inner p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--deep);
  max-width: 44em;
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-contact .ct-cards {
    grid-template-columns: repeat(12, 1fr);
    align-items: start;
  }

  .page-contact .ct-card--mail { grid-column: 1 / span 5; }
  .page-contact .ct-card--phone { grid-column: 6 / span 3; margin-top: 30px; }
  .page-contact .ct-card--visit { grid-column: 9 / span 4; margin-top: -12px; }

  .page-contact .ct-resp-list li {
    grid-template-columns: 180px 1fr;
    gap: 28px;
    align-items: baseline;
    padding: 22px 0;
  }

  .page-contact .ct-coop-list article {
    grid-template-columns: 48px 220px 1fr;
    align-items: baseline;
    gap: 20px;
  }

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

@media (min-width: 900px) {
  .page-contact .ct-hero-inner {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.55fr);
    align-items: end;
  }

  .page-contact .ct-ch-head {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
    align-items: center;
  }

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

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

@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition: none !important;
  }

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