.page-contact {
  background: var(--abyss-900);
  color: var(--paper);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

.page-contact h1,
.page-contact h2,
.page-contact h3 {
  margin: 0;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.08;
}

.page-contact p {
  margin: 0;
}

.page-contact .eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}

/* ---------- 首屏分屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: calc(var(--header-h) + 30px) 0 42px;
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(0, 229, 208, 0.12), transparent 62%),
    linear-gradient(180deg, rgba(7, 31, 46, 0.96), var(--abyss-900) 78%);
  overflow: hidden;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(116deg, transparent 56%, rgba(0, 229, 208, 0.09) 56.2%, rgba(0, 229, 208, 0.09) 57.2%, transparent 57.4%),
    repeating-linear-gradient(90deg, var(--hair-faint) 0 1px, transparent 1px 96px);
}

.page-contact .contact-hero-grid {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  gap: 30px;
}

.page-contact .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-contact .crumb-sep {
  color: var(--grid-600);
}

.page-contact .contact-title {
  font-size: clamp(1.9rem, 6.4vw, 3.4rem);
  max-width: 20ch;
}

.page-contact .lede {
  margin-top: 18px;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-contact .hero-facts {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 14px 18px;
  margin: 30px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--hair-soft);
}

.page-contact .hero-facts li {
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.page-contact .fact-num {
  font-family: var(--font-mono);
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-contact .fact-text {
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--mist);
}

.page-contact .hero-rail {
  position: relative;
  padding: 22px 20px 26px;
  background: linear-gradient(158deg, var(--abyss-800), var(--panel-700));
  border: 1px solid var(--hair);
  box-shadow: 12px 12px 0 rgba(12, 44, 66, 0.5);
}

.page-contact .hero-rail .exhibit-tag {
  margin: 0;
}

.page-contact .hero-steps {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 20px;
}

.page-contact .hero-steps li {
  position: relative;
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr);
  gap: 2px 10px;
  padding-left: 20px;
}

.page-contact .hero-steps li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 8px;
  height: 8px;
  background: var(--yellow);
}

.page-contact .hero-steps li::after {
  content: "";
  position: absolute;
  left: 3.5px;
  top: 20px;
  bottom: -22px;
  width: 1px;
  background: var(--hair-soft);
}

.page-contact .hero-steps li:last-child::after {
  display: none;
}

.page-contact .hero-steps li.is-current::before {
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(0, 229, 208, 0.18);
}

.page-contact .step-num {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--mist);
  font-variant-numeric: tabular-nums;
}

.page-contact .hero-steps strong {
  font-size: 14px;
  letter-spacing: 0.02em;
}

.page-contact .hero-steps li > span:last-child {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 页内目录 ---------- */
.page-contact .contact-index {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 14px var(--gutter);
  background: rgba(7, 31, 46, 0.72);
  border-top: 1px solid var(--hair-soft);
  border-bottom: 1px solid var(--hair-soft);
  -webkit-overflow-scrolling: touch;
}

.page-contact .index-link {
  flex: 0 0 auto;
  padding: 7px 12px;
  border: 1px solid var(--hair-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mist);
  text-decoration: none;
  transition: color var(--speed) var(--ease), border-color var(--speed) var(--ease), background var(--speed) var(--ease);
}

.page-contact .index-link:hover,
.page-contact .index-link:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
}

.page-contact .index-link[aria-current="true"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
}

/* ---------- 章节骨架 ---------- */
.page-contact .section {
  padding: 54px 0;
  position: relative;
}

.page-contact .section-head {
  margin-bottom: 26px;
  max-width: 62ch;
}

.page-contact .section-head h2 {
  font-size: clamp(1.55rem, 4vw, 2.5rem);
  line-height: 1.12;
}

.page-contact .section-head p {
  margin-top: 12px;
  max-width: 58ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 路径卡 ---------- */
.page-contact .path-grid {
  display: grid;
  gap: 16px;
}

.page-contact .path-card {
  position: relative;
  padding: 22px 18px 20px;
  background: var(--abyss-800);
  border: 1px solid var(--hair);
  box-shadow: 8px 8px 0 rgba(12, 44, 66, 0.45);
  transition: transform var(--speed) var(--ease), border-color var(--speed) var(--ease);
}

.page-contact .path-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 42px;
  height: 3px;
  background: var(--cyan);
}

.page-contact .path-card:nth-child(2)::before {
  background: var(--yellow);
}

.page-contact .path-card:nth-child(3)::before {
  background: var(--orange);
}

.page-contact .path-card:hover {
  transform: translate(-2px, -2px);
  border-color: var(--grid-600);
}

.page-contact .path-card .exhibit-tag {
  margin: 0 0 12px;
}

.page-contact .path-card h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
}

.page-contact .path-card > p {
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .path-meta {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--hair-soft);
  display: grid;
  gap: 8px;
}

.page-contact .path-meta div {
  display: grid;
  grid-template-columns: 3.6rem minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
}

.page-contact .path-meta dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--grid-600);
  color: var(--mist);
}

.page-contact .path-meta dd {
  margin: 0;
  font-size: 13px;
  color: var(--paper);
}

/* ---------- 直接联系 ---------- */
.page-contact .contact-direct {
  display: grid;
  gap: 18px;
  margin-top: 28px;
}

.page-contact .direct-panel {
  padding: 22px 18px 24px;
  background: linear-gradient(160deg, var(--panel-700), var(--abyss-800));
}

.page-contact .direct-panel .exhibit-tag {
  margin: 0 0 12px;
}

.page-contact .direct-panel h3 {
  font-size: 1.2rem;
  margin-bottom: 16px;
}

.page-contact .contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .contact-line {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 4px 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--hair-faint);
}

.page-contact .contact-label {
  grid-column: 1 / -1;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-contact .contact-value {
  font-size: 14px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

.page-contact .copy-btn {
  align-self: center;
  padding: 4px 10px;
  background: transparent;
  border: 1px solid var(--hair);
  color: var(--mist);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: color var(--speed) var(--ease), border-color var(--speed) var(--ease);
}

.page-contact .copy-btn:hover,
.page-contact .copy-btn:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
}

.page-contact .copy-btn.is-copied {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
}

.page-contact .direct-note {
  margin-top: 16px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .direct-icp {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--grid-600);
  color: var(--mist);
}

.page-contact .direct-figure {
  margin: 0;
}

/* ---------- 反馈流程时间线 ---------- */
.page-contact .feedback-flow {
  background:
    linear-gradient(180deg, rgba(7, 31, 46, 0.9), var(--abyss-900));
  border-top: 1px solid var(--hair-faint);
  border-bottom: 1px solid var(--hair-faint);
}

.page-contact .flow-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  counter-reset: flow;
}

.page-contact .flow-step {
  position: relative;
  padding: 18px 16px 18px 52px;
  background: var(--abyss-800);
  border: 1px solid var(--hair);
  border-left: 3px solid var(--grid-600);
}

.page-contact .flow-step:first-child {
  border-left-color: var(--cyan);
}

.page-contact .flow-index {
  position: absolute;
  left: 15px;
  top: 18px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--yellow);
  font-variant-numeric: tabular-nums;
}

.page-contact .flow-step h3 {
  font-size: 1rem;
  margin-bottom: 8px;
}

.page-contact .flow-step p {
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .status-tag {
  display: inline-block;
  margin-top: 12px;
  padding: 3px 9px;
  border: 1px solid var(--hair-soft);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

.page-contact .status-tag--warm {
  border-color: rgba(255, 209, 102, 0.5);
  color: var(--yellow);
}

.page-contact .status-tag--cyan {
  border-color: rgba(0, 229, 208, 0.5);
  color: var(--cyan);
}

.page-contact .flow-note {
  margin-top: 20px;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--mist);
  max-width: 62ch;
}

/* ---------- 合作类型 ---------- */
.page-contact .partner-list {
  display: grid;
  gap: 12px;
}

.page-contact .partner-item {
  background: var(--abyss-800);
  border: 1px solid var(--hair);
}

.page-contact .partner-item summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 6px 14px;
  padding: 16px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-contact .partner-tag {
  grid-column: 1;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-contact .partner-summary {
  grid-column: 1;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--paper);
}

.page-contact .partner-toggle {
  grid-column: 2;
  grid-row: 1 / span 2;
  align-self: center;
  padding: 4px 9px;
  border: 1px solid var(--hair-soft);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

.page-contact .partner-item[open] .partner-toggle {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
}

.page-contact .partner-body {
  padding: 0 16px 18px;
  border-top: 1px dashed var(--hair-soft);
  margin-top: 2px;
}

.page-contact .partner-body p {
  margin-top: 14px;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .partner-body ul {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-contact .partner-body li {
  position: relative;
  padding-left: 16px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--paper);
}

.page-contact .partner-body li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  background: var(--orange);
}

/* ---------- 服务区域 ---------- */
.page-contact .service-grid {
  display: grid;
  gap: 24px;
}

.page-contact .service-figure {
  margin: 0;
}

.page-contact .service-copy h2 {
  font-size: clamp(1.5rem, 3.8vw, 2.35rem);
  margin-bottom: 14px;
}

.page-contact .service-copy > p {
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--mist);
  max-width: 58ch;
}

.page-contact .service-facts {
  display: grid;
  gap: 0;
  margin: 22px 0 0;
  border-top: 1px solid var(--hair-soft);
}

.page-contact .service-facts div {
  display: grid;
  grid-template-columns: 6.4rem minmax(0, 1fr);
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--hair-faint);
}

.page-contact .service-facts dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--mist);
  padding-top: 3px;
}

.page-contact .service-facts dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--paper);
}

/* ---------- 登记牌表单 ---------- */
.page-contact .form-section {
  background: linear-gradient(180deg, rgba(7, 31, 46, 0.92), var(--abyss-900));
  border-top: 1px solid var(--hair-faint);
}

.page-contact .form-shell {
  display: grid;
  gap: 24px;
}

.page-contact .form-intro h2 {
  font-size: clamp(1.5rem, 3.8vw, 2.35rem);
  margin-bottom: 14px;
}

.page-contact .form-intro > p {
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--mist);
  max-width: 52ch;
}

.page-contact .form-tips {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .form-tips li {
  position: relative;
  padding-left: 18px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .form-tips li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 1px;
  background: var(--cyan);
}

.page-contact .form-plate {
  padding: 22px 18px 24px;
  background: var(--panel-700);
  border: 1px solid var(--hair);
  box-shadow: 10px 10px 0 rgba(22, 64, 90, 0.28);
}

.page-contact .form-plate .exhibit-tag {
  margin: 0 0 6px;
}

.page-contact .field-row {
  display: grid;
  gap: 0;
}

.page-contact .field {
  display: block;
  margin-top: 16px;
}

.page-contact .field-label {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-contact .field input,
.page-contact .field select,
.page-contact .field textarea {
  width: 100%;
  box-sizing: border-box;
  padding: 11px 12px;
  background: var(--abyss-900);
  border: 1px solid var(--hair);
  border-radius: 0;
  color: var(--paper);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.5;
  appearance: none;
}

.page-contact .field textarea {
  resize: vertical;
  min-height: 104px;
}

.page-contact .field input::placeholder,
.page-contact .field textarea::placeholder {
  color: rgba(157, 182, 196, 0.7);
}

.page-contact .field input:focus,
.page-contact .field select:focus,
.page-contact .field textarea:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: 0 0 0 2px rgba(0, 229, 208, 0.18);
}

.page-contact .field-hint {
  margin-top: 14px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .form-submit {
  width: 100%;
  margin-top: 18px;
  cursor: pointer;
}

.page-contact .form-alt {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.8;
  letter-spacing: 0.04em;
  color: var(--mist);
  word-break: break-word;
}

/* ---------- 自助短链 ---------- */
.page-contact .quick-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .quick-card {
  display: grid;
  grid-template-columns: 2.6rem minmax(0, 1fr);
  gap: 4px 12px;
  padding: 16px 16px 18px;
  background: var(--abyss-800);
  border: 1px solid var(--hair);
  text-decoration: none;
  color: var(--paper);
  transition: border-color var(--speed) var(--ease), background var(--speed) var(--ease);
}

.page-contact .quick-card:hover,
.page-contact .quick-card:focus-visible {
  border-color: var(--cyan);
  background: var(--panel-700);
}

.page-contact .quick-num {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cyan);
  padding-top: 2px;
}

.page-contact .quick-card strong {
  font-size: 14.5px;
  line-height: 1.5;
}

.page-contact .quick-card > span:last-child {
  font-size: 13px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .quick-more {
  margin-top: 22px;
  font-size: 13.5px;
  line-height: 1.9;
  color: var(--mist);
}

.page-contact .text-link {
  color: var(--link);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .text-link:hover,
.page-contact .text-link:focus-visible {
  color: var(--cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .field-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 14px;
  }

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

@media (min-width: 860px) {
  .page-contact .contact-hero {
    padding: calc(var(--header-h) + 46px) 0 62px;
  }

  .page-contact .contact-hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 350px);
    gap: 48px;
    align-items: start;
  }

  .page-contact .hero-rail {
    padding: 26px 24px 30px;
    clip-path: polygon(0 0, 100% 0, 100% 100%, 10% 100%, 0 86%);
  }

  .page-contact .section {
    padding: 76px 0;
  }

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

  .page-contact .contact-direct {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    gap: 22px;
    margin-top: 34px;
    align-items: stretch;
  }

  .page-contact .direct-figure {
    height: 100%;
  }

  .page-contact .flow-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
  }

  .page-contact .flow-step {
    padding: 46px 16px 20px;
    border-left: 1px solid var(--hair);
    border-top: 2px solid var(--grid-600);
  }

  .page-contact .flow-step:first-child {
    border-left-color: var(--hair);
    border-top-color: var(--cyan);
  }

  .page-contact .flow-index {
    left: 16px;
    top: 20px;
  }

  .page-contact .service-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 34px;
    align-items: center;
  }

  .page-contact .form-shell {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: 40px;
    align-items: start;
  }

  .page-contact .form-submit {
    width: auto;
    min-width: 200px;
  }
}

@media (min-width: 1100px) {
  .page-contact .contact-title {
    max-width: 22ch;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-contact .path-card,
  .page-contact .quick-card,
  .page-contact .index-link,
  .page-contact .copy-btn {
    transition: none;
  }

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