.page-contact {
  --ct-line: rgba(201, 214, 206, 0.22);
  --ct-line-dark: rgba(29, 33, 31, 0.14);
  --ct-muted: #55635b;
  background: var(--ink-900);
  color: var(--paper);
  overflow-x: clip;
}

.page-contact .ct-head {
  max-width: 62ch;
}

.page-contact .ct-no {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.4rem, 6vw, 3.6rem);
  line-height: 0.9;
  letter-spacing: -0.02em;
  color: rgba(201, 255, 61, 0.28);
}

.page-contact .ct-title {
  margin: 10px 0 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.4vw, 2.2rem);
  line-height: 1.28;
  letter-spacing: 0.01em;
}

.page-contact .ct-lead {
  margin: 14px 0 0;
  font-size: 0.98rem;
  line-height: 1.8;
  color: rgba(245, 240, 228, 0.78);
  max-width: 54ch;
}

.page-contact .ct-inline-link {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 255, 61, 0.45);
  transition: color 160ms var(--ease-out), border-color 160ms var(--ease-out);
}

.page-contact .ct-inline-link:hover {
  color: var(--lime-soft);
  border-bottom-color: var(--lime-soft);
}

.page-contact .ct-side-note {
  margin: 26px 0 0;
  font-size: 0.88rem;
  line-height: 1.8;
  color: rgba(245, 240, 228, 0.62);
}

/* 首屏 */
.page-contact .ct-hero {
  position: relative;
  isolation: isolate;
  padding: calc(var(--header-h) + 64px) 0 clamp(64px, 9vw, 104px);
  overflow: hidden;
}

.page-contact .ct-hero-media {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.page-contact .ct-hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.34;
  filter: saturate(1.1) contrast(1.05);
}

.page-contact .ct-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(120% 90% at 80% 6%, rgba(201, 255, 61, 0.18), transparent 62%),
    linear-gradient(180deg, rgba(11, 43, 35, 0.55) 0%, rgba(11, 43, 35, 0.88) 58%, var(--ink-900) 100%);
}

.page-contact .ct-hero-inner {
  position: relative;
}

.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--mist);
}

.page-contact .breadcrumb a {
  color: var(--lime-soft);
  text-decoration: none;
}

.page-contact .breadcrumb a:hover {
  color: var(--lime);
}

.page-contact .ct-hero h1 {
  margin: 10px 0 0;
  max-width: 18ch;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(2rem, 6vw, 3.9rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.page-contact .ct-hero-lead {
  margin: 22px 0 0;
  max-width: 58ch;
  font-size: 1rem;
  line-height: 1.85;
  color: rgba(245, 240, 228, 0.82);
}

.page-contact .ct-hero-keys {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-hero-keys li {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 18px;
  border: 1px solid var(--ct-line);
  border-radius: var(--radius-pill);
  background: rgba(18, 59, 47, 0.6);
}

.page-contact .ct-key-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--mist);
}

.page-contact .ct-key-val {
  font-weight: 700;
  font-size: 0.94rem;
  color: var(--lime);
}

/* 合作方向 + 回执 */
.page-contact .ct-coop {
  padding: clamp(56px, 8vw, 96px) 0 clamp(56px, 8vw, 88px);
}

.page-contact .ct-coop-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 5vw, 52px);
}

.page-contact .ct-track {
  position: relative;
  margin-top: 16px;
  padding: 20px 22px 20px 66px;
  border: 1px solid var(--ct-line);
  border-radius: var(--radius-md);
  background: var(--ink-800);
}

.page-contact .ct-track-no {
  position: absolute;
  left: 22px;
  top: 20px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--lime);
}

.page-contact .ct-track-title {
  margin: 0 0 10px;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: 1.12rem;
  letter-spacing: 0.02em;
}

.page-contact .ct-track-line {
  margin: 6px 0 0;
  font-size: 0.9rem;
  line-height: 1.78;
  color: rgba(245, 240, 228, 0.76);
}

.page-contact .ct-track-line span {
  display: inline-block;
  margin-right: 8px;
  padding: 1px 8px;
  border-radius: var(--radius-pill);
  background: rgba(201, 255, 61, 0.14);
  color: var(--lime-soft);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
}

.page-contact .ct-receipt {
  position: relative;
  padding: 24px 22px 22px;
  border-radius: var(--radius-lg);
  background: var(--paper);
  color: var(--char);
  box-shadow: 0 30px 64px -34px rgba(0, 0, 0, 0.8);
}

.page-contact .ct-receipt-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
}

.page-contact .ct-receipt-tag {
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  background: var(--ink-900);
  color: var(--lime);
}

.page-contact .ct-receipt-no {
  color: var(--ct-muted);
}

.page-contact .ct-receipt-title {
  margin: 18px 0 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.14rem;
  line-height: 1.45;
}

.page-contact .ct-receipt-steps {
  margin: 14px 0 0;
  padding-left: 1.15em;
  font-size: 0.88rem;
  line-height: 1.8;
  color: #3a453f;
}

.page-contact .ct-receipt-steps li {
  margin-top: 6px;
}

.page-contact .ct-receipt-tear {
  position: relative;
  height: 1px;
  margin: 22px -22px;
  background-image: linear-gradient(90deg, var(--ct-line-dark) 50%, transparent 0);
  background-size: 12px 1px;
  background-repeat: repeat-x;
}

.page-contact .ct-receipt-tear::before,
.page-contact .ct-receipt-tear::after {
  content: "";
  position: absolute;
  top: -9px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--ink-900);
}

.page-contact .ct-receipt-tear::before {
  left: -31px;
}

.page-contact .ct-receipt-tear::after {
  right: -31px;
}

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

.page-contact .ct-contact-row {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--ct-line-dark);
}

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

.page-contact .ct-contact-row dt {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--pitch);
}

.page-contact .ct-contact-row dd {
  margin: 0;
  font-weight: 700;
  font-size: 0.95rem;
  line-height: 1.5;
  word-break: break-word;
}

.page-contact .ct-contact-row dd small {
  display: block;
  margin-top: 4px;
  font-weight: 400;
  font-size: 0.76rem;
  color: var(--ct-muted);
}

.page-contact .ct-receipt-note {
  margin: 16px 0 0;
  padding-left: 12px;
  border-left: 3px solid var(--flare);
  font-size: 0.78rem;
  line-height: 1.75;
  color: #4a564f;
}

/* 反馈与纠错 */
.page-contact .ct-feedback {
  background: var(--paper);
  color: var(--char);
  padding: clamp(56px, 8vw, 96px) 0;
}

.page-contact .ct-feedback .ct-no,
.page-contact .ct-prep .ct-no {
  color: rgba(46, 107, 79, 0.28);
}

.page-contact .ct-feedback .ct-lead,
.page-contact .ct-prep .ct-lead {
  color: var(--ct-muted);
}

.page-contact .ct-feedback .ct-side-note,
.page-contact .ct-prep .ct-side-note {
  color: #5f6d65;
}

.page-contact .ct-feedback .ct-inline-link,
.page-contact .ct-prep .ct-inline-link {
  color: var(--pitch);
  border-bottom-color: rgba(46, 107, 79, 0.45);
}

.page-contact .ct-feedback .ct-inline-link:hover,
.page-contact .ct-prep .ct-inline-link:hover {
  color: var(--ink-900);
  border-bottom-color: var(--ink-900);
}

.page-contact .ct-fb-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 54px);
}

.page-contact .ct-fb-types {
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-fb-types li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: 14px 0;
  border-top: 1px solid var(--ct-line-dark);
}

.page-contact .ct-fb-types .tag {
  justify-self: start;
  display: inline-block;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  background: var(--ink-900);
  color: var(--lime);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.page-contact .ct-fb-types .tag--flare {
  background: var(--flare);
  color: #ffffff;
}

.page-contact .ct-fb-types p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.78;
  color: #3f4a44;
}

.page-contact .ct-acc {
  margin-top: 28px;
  border-top: 1px solid var(--ct-line-dark);
}

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

.page-contact .ct-acc summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 0;
  cursor: pointer;
  font-weight: 700;
  font-size: 0.96rem;
  list-style: none;
}

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

.page-contact .ct-acc summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--pitch);
}

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

.page-contact .ct-acc-no {
  min-width: 24px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--flare);
}

.page-contact .ct-acc p {
  margin: 0 0 16px;
  padding-left: 36px;
  font-size: 0.88rem;
  line-height: 1.8;
  color: #4a564f;
}

.page-contact .ct-fb-media {
  margin: 0;
}

.page-contact .ct-fb-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: var(--radius-lg);
  filter: saturate(1.05);
}

.page-contact .ct-fb-media figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: #5f6d65;
}

/* 响应流程 */
.page-contact .ct-flow {
  padding: clamp(56px, 8vw, 92px) 0;
  background: var(--ink-800);
}

.page-contact .ct-flow-steps {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-flow-step {
  position: relative;
  padding: 22px 20px 24px;
  border: 1px solid var(--ct-line);
  border-radius: var(--radius-md);
  background: rgba(11, 43, 35, 0.62);
}

.page-contact .ct-step-no {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 2.3rem;
  line-height: 1;
  color: var(--lime);
}

.page-contact .ct-flow-step--flare .ct-step-no {
  color: var(--flare);
}

.page-contact .ct-step-title {
  margin: 12px 0 8px;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: 1.02rem;
  letter-spacing: 0.02em;
}

.page-contact .ct-step-text {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.78;
  color: rgba(245, 240, 228, 0.74);
}

/* 合作前准备 */
.page-contact .ct-prep {
  padding: clamp(56px, 8vw, 92px) 0;
  background: var(--paper);
  color: var(--char);
}

.page-contact .ct-prep-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: 32px;
}

.page-contact .ct-prep-card {
  padding: 22px 20px;
  border: 1px solid var(--ct-line-dark);
  border-radius: var(--radius-md);
  background: #fffdf7;
}

.page-contact .ct-prep-no {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.6rem;
  line-height: 1;
  color: var(--pitch);
}

.page-contact .ct-prep-title {
  margin: 12px 0 8px;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: 1.02rem;
  letter-spacing: 0.02em;
}

.page-contact .ct-prep-text {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.78;
  color: #3f4a44;
}

.page-contact .ct-side-note--dark {
  color: rgba(245, 240, 228, 0.62);
}

/* 服务地区与备案 */
.page-contact .ct-region {
  padding: clamp(48px, 7vw, 84px) 0 clamp(56px, 8vw, 96px);
  background: var(--ink-900);
}

.page-contact .ct-region-title {
  margin: 0 0 22px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.2rem, 2.6vw, 1.6rem);
  line-height: 1.4;
}

.page-contact .ct-mono-bar {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--ct-line);
  border: 1px solid var(--ct-line);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-contact .ct-mono-item {
  padding: 18px 20px;
  background: var(--ink-900);
}

.page-contact .ct-mono-item span {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-contact .ct-mono-item strong {
  display: block;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.92rem;
  color: var(--lime);
  word-break: break-word;
}

.page-contact .ct-region-note {
  margin: 20px 0 0;
  max-width: 62ch;
  font-size: 0.86rem;
  line-height: 1.82;
  color: rgba(245, 240, 228, 0.62);
}

@media (min-width: 720px) {
  .page-contact .ct-fb-types li {
    grid-template-columns: 120px minmax(0, 1fr);
    align-items: start;
    gap: 16px;
  }

  .page-contact .ct-flow-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-contact .ct-prep-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

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

@media (min-width: 900px) {
  .page-contact .ct-coop-grid {
    grid-template-columns: minmax(0, 1.28fr) minmax(0, 0.85fr);
    align-items: start;
  }

  .page-contact .ct-receipt {
    position: sticky;
    top: calc(var(--header-h) + 26px);
    padding: 28px 26px 24px;
  }

  .page-contact .ct-receipt-tear {
    margin-left: -26px;
    margin-right: -26px;
  }

  .page-contact .ct-receipt-tear::before {
    left: -35px;
  }

  .page-contact .ct-receipt-tear::after {
    right: -35px;
  }

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

@media (min-width: 1000px) {
  .page-contact .ct-mono-bar {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-inline-link,
  .page-contact .ct-acc summary {
    transition: none;
  }
}