.page-contact {
  --pc-gap: 18px;
  --pc-panel: linear-gradient(158deg, #0A1B36 0%, #050F22 100%);
  background: radial-gradient(circle at 86% -6%, #0d2647 0%, #050F22 52%) no-repeat, var(--ink);
  color: var(--text);
  font-family: var(--sans);
  padding-bottom: clamp(48px, 8vw, 88px);
}

.page-contact .crumbs {
  margin: 22px 0 6px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  display: grid;
  gap: 26px;
  padding: 14px 0 44px;
}

.page-contact .hero-kicker {
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-contact .hero-title {
  margin: 0 0 18px;
  font-size: clamp(30px, 6.2vw, 56px);
  line-height: 1.1;
  letter-spacing: 0.04em;
  font-weight: 800;
}

.page-contact .hero-title__mark {
  color: var(--cyan);
  box-shadow: inset 0 -0.16em 0 rgba(38, 227, 216, 0.2);
}

.page-contact .hero-lede {
  margin: 0 0 22px;
  max-width: 52ch;
  font-size: clamp(14.5px, 2vw, 16px);
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .hero-actions {
  margin: 0;
}

.page-contact .console {
  padding: 4px 18px;
  border: 1px solid var(--line);
  background: var(--pc-panel);
  clip-path: var(--cut-corner);
}

.page-contact .console__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}

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

.page-contact .console__key {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-contact .console__val {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--text);
  text-align: right;
}

.page-contact .console__val--cyan {
  color: var(--cyan);
}

.page-contact .dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ok);
}

/* ---------- 区块标题 ---------- */
.page-contact .contact-block {
  padding-top: clamp(30px, 4.5vw, 52px);
}

.page-contact .blk-head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 8px 14px;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-contact .blk-head__idx {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-contact .blk-head__title {
  margin: 0;
  font-size: clamp(19px, 3.2vw, 27px);
  line-height: 1.3;
  letter-spacing: 0.04em;
  font-weight: 800;
}

.page-contact .blk-head__note {
  flex: 1 1 100%;
  margin: 4px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 通道区 ---------- */
.page-contact .flow-figure {
  margin: 0 0 22px;
}

.page-contact .flow-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--line);
  clip-path: var(--cut-corner);
}

.page-contact .lane-grid {
  display: grid;
  gap: 14px;
}

.page-contact .lane {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px 18px 16px;
  background: var(--ink-2);
  border: 1px solid var(--line);
  box-shadow: inset 0 1px 0 var(--line);
  clip-path: var(--cut-corner);
}

.page-contact .lane--signal {
  background: linear-gradient(168deg, #12305a 0%, #0A1B36 62%);
  border-color: #1d4574;
  box-shadow: inset 0 2px 0 var(--signal);
}

.page-contact .lane__body {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-contact .lane__code {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-contact .lane__name {
  margin: 0;
  font-size: 18px;
  letter-spacing: 0.04em;
  font-weight: 700;
}

.page-contact .lane__desc {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .lane__flag {
  margin: 2px 0 0;
}

.page-contact .lane__cta {
  align-self: flex-start;
  margin-top: 6px;
}

.page-contact .fold__item {
  margin-top: auto;
}

.page-contact .fold__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  width: 100%;
  margin-top: 8px;
  padding: 13px 0 4px;
  border: 0;
  border-top: 1px solid var(--line);
  background: none;
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  cursor: pointer;
}

.page-contact .fold__trigger:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-contact .fold__icon {
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform 0.22s ease;
}

.page-contact .fold__trigger[aria-expanded="true"] .fold__icon {
  transform: rotate(-135deg) translate(-2px, -2px);
}

.page-contact .fold__panel {
  padding: 12px 0 2px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .fold__panel p {
  margin: 0;
}

.page-contact .fold__panel a {
  color: var(--cyan-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .lane-hint {
  margin: 18px 0 0;
  padding: 14px 16px;
  border-left: 2px solid var(--cyan);
  background: rgba(22, 53, 95, 0.42);
  font-size: 13px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 联系方式 ---------- */
.page-contact .contact-split {
  display: grid;
  gap: var(--pc-gap);
}

.page-contact .contact-card {
  position: relative;
  overflow: hidden;
  min-height: 240px;
  padding: 22px 20px;
  border: 1px solid var(--line);
  background: var(--ink-2);
  clip-path: var(--cut-corner);
}

.page-contact .contact-card__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.24;
}

.page-contact .contact-card__inner {
  position: relative;
  z-index: 1;
}

.page-contact .contact-card__title {
  margin: 0 0 8px;
  font-size: 17px;
  letter-spacing: 0.06em;
  font-weight: 700;
}

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

.page-contact .contact-item {
  padding: 11px 0;
  border-top: 1px solid var(--line);
}

.page-contact .contact-key {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-contact .contact-val {
  margin: 4px 0 0;
  font-family: var(--mono);
  font-size: clamp(13.5px, 2.2vw, 15px);
  line-height: 1.6;
  color: var(--text);
  word-break: break-word;
}

.page-contact .contact-card__note {
  margin: 14px 0 0;
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 准备清单 ---------- */
.page-contact .prep-box__title {
  margin: 0 0 10px;
  font-size: 17px;
  letter-spacing: 0.04em;
  font-weight: 700;
}

.page-contact .prep-box__lead {
  margin: 0 0 16px;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--muted);
}

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

.page-contact .prep-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 13px 14px;
  border: 1px solid var(--line);
  background: var(--ink-2);
  cursor: pointer;
  transition: border-color 0.14s ease, background-color 0.14s ease;
}

.page-contact .prep-item:hover {
  border-color: #24507f;
}

.page-contact .prep-check {
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  margin: 3px 0 0;
  appearance: none;
  -webkit-appearance: none;
  border: 1px solid var(--cyan);
  background: transparent;
  cursor: pointer;
}

.page-contact .prep-check:checked {
  background: var(--cyan);
  box-shadow: inset 0 0 0 3px var(--ink-2);
}

.page-contact .prep-check:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .prep-text {
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .prep-text strong {
  display: block;
  margin-bottom: 3px;
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--text);
}

.page-contact .prep-item:has(.prep-check:checked) {
  border-color: var(--cyan);
  background: #0d2340;
}

.page-contact .prep-item:has(.prep-check:checked) .prep-text {
  color: var(--cyan-soft);
}

.page-contact .prep-box__foot {
  margin: 14px 0 0;
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .prep-box__foot a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 合作 ---------- */
.page-contact .coop-grid {
  display: grid;
  gap: 14px;
}

.page-contact .coop-card {
  padding: 18px;
  border: 1px solid var(--line);
  border-top: 2px solid #1d4574;
  background: var(--pc-panel);
}

.page-contact .coop-card__title {
  margin: 0 0 8px;
  font-size: 15.5px;
  letter-spacing: 0.04em;
  font-weight: 700;
}

.page-contact .coop-card__text {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .coop-materials {
  margin-top: 20px;
  padding: 20px 18px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  background: rgba(22, 53, 95, 0.32);
}

.page-contact .coop-materials__title {
  margin: 0 0 12px;
  font-size: 15px;
  letter-spacing: 0.04em;
  font-weight: 700;
}

.page-contact .material-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
}

.page-contact .material-list li {
  position: relative;
  padding-left: 18px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .material-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 7px;
  height: 1px;
  background: var(--cyan);
}

.page-contact .coop-materials__foot {
  margin: 14px 0 0;
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .coop-materials__foot a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 到访与邮寄 ---------- */
.page-contact .visit-block {
  display: grid;
  gap: 18px;
}

.page-contact .visit-address {
  padding: 20px 18px;
  border: 1px solid var(--line);
  background:
    repeating-linear-gradient(135deg, rgba(38, 227, 216, 0.06) 0 1px, transparent 1px 14px),
    var(--ink-2);
}

.page-contact .visit-address__key {
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-contact .visit-address__val {
  margin: 10px 0 8px;
  font-size: clamp(15px, 2.6vw, 18px);
  line-height: 1.65;
  letter-spacing: 0.03em;
  font-weight: 700;
  color: var(--text);
}

.page-contact .visit-address__note {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--muted);
}

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

.page-contact .visit-list li {
  padding: 0 0 12px;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .visit-list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-contact .visit-list strong {
  display: block;
  margin-bottom: 4px;
  font-size: 13.5px;
  color: var(--text);
  letter-spacing: 0.02em;
}

/* ---------- 流程线 ---------- */
.page-contact .flow-line {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 4px;
}

.page-contact .flow-step {
  position: relative;
  padding: 16px 0 14px 16px;
  border-left: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .flow-step::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 22px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
}

.page-contact .flow-step__num {
  display: block;
  margin-bottom: 5px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: var(--cyan-soft);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .lane-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-contact .flow-line {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0;
  }

  .page-contact .flow-step {
    padding: 18px 14px 0 0;
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .page-contact .flow-step::before {
    top: -4px;
    left: 0;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-split {
    grid-template-columns: 1.04fr 1fr;
    align-items: start;
    gap: 22px;
  }

  .page-contact .visit-block {
    grid-template-columns: 1fr 1.15fr;
    gap: 24px;
  }

  .page-contact .blk-head__note {
    flex: 0 1 auto;
    margin-left: auto;
    max-width: 54%;
    text-align: right;
  }
}

@media (min-width: 1080px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1fr) 306px;
    align-items: end;
    gap: 44px;
    padding-bottom: 56px;
  }

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

  .page-contact .lane {
    padding: 22px 18px 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .fold__icon,
  .page-contact .prep-item {
    transition: none;
  }
}