.page-contact {
  display: block;
  background: var(--ink);
  color: var(--sand);
  overflow-x: clip;
}

/* ---------- 面包屑 ---------- */
.page-contact .contact-crumb {
  padding-top: 18px;
  padding-bottom: 4px;
}
.page-contact .contact-crumb .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--rock);
}
.page-contact .contact-crumb .breadcrumb a {
  color: var(--rock);
  text-decoration: none;
  border-bottom: 1px solid rgba(147, 166, 184, 0.45);
}
.page-contact .contact-crumb .breadcrumb a:hover { color: var(--amber-lift); }
.page-contact .contact-crumb .breadcrumb li[aria-current] { color: var(--sand); }

/* ---------- 首屏 ---------- */
.page-contact .contact-lead {
  background: linear-gradient(180deg, var(--ink-2) 0%, var(--ink) 100%);
  border-bottom: var(--line) solid var(--edge);
}
.page-contact .contact-lead__grid {
  display: grid;
  gap: 26px;
  padding-top: 22px;
  padding-bottom: 40px;
}
.page-contact .contact-lead h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(34px, 8.4vw, 72px);
  line-height: 0.98;
  letter-spacing: -0.5px;
  margin: 10px 0 0;
}
.page-contact .contact-lead__sub {
  max-width: var(--measure);
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--sand-dim);
}
.page-contact .contact-direct {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  border-top: var(--line) solid var(--amber);
}
.page-contact .contact-direct__row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 6px 14px;
  padding: 14px 0 16px;
  border-bottom: 1px solid rgba(147, 166, 184, 0.26);
}
.page-contact .contact-direct__key {
  grid-column: 1 / -1;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--rock);
}
.page-contact .contact-direct__val {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(19px, 5.4vw, 32px);
  line-height: 1.15;
  color: var(--sand);
  overflow-wrap: anywhere;
}
.page-contact .contact-direct__val--mail { color: var(--amber-lift); }
.page-contact .contact-direct__copy {
  align-self: center;
  padding: 8px 14px;
  border: 2px solid var(--rock);
  background: transparent;
  color: var(--rock);
  font-family: var(--font-body);
  font-size: 13px;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.page-contact .contact-direct__copy:hover,
.page-contact .contact-direct__copy:focus-visible {
  border-color: var(--amber-lift);
  background: var(--amber-lift);
  color: var(--ink);
}
.page-contact .contact-direct__copy[data-copied] {
  border-color: var(--oasis);
  background: var(--oasis);
  color: var(--ink);
}
.page-contact .contact-lead__note {
  max-width: var(--measure);
  margin: 18px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--rock);
}
.page-contact .contact-lead__media {
  margin: 0;
  border: var(--line) solid var(--edge);
  box-shadow: var(--hard);
  overflow: hidden;
}
.page-contact .contact-lead__media img {
  display: block;
  width: 100%;
  height: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* ---------- 章节通用 ---------- */
.page-contact .contact-sec {
  padding: 52px 0;
  border-bottom: var(--line) solid var(--edge);
}
.page-contact .contact-sec--tracks { background: var(--ink); }
.page-contact .contact-sec--flow { background: var(--ink-2); }
.page-contact .contact-sec--prep { background: var(--ink); }
.page-contact .contact-sec--team { background: var(--ink-2); }
.page-contact .contact-sec--visit {
  background: var(--ink-deep);
  border-bottom: 0;
}
.page-contact .contact-sec__head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px 16px;
  margin-bottom: 30px;
}
.page-contact .contact-sec__head .chapter-num { padding-top: 8px; }
.page-contact .contact-sec__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(26px, 6vw, 44px);
  line-height: 1.04;
  letter-spacing: -0.4px;
  margin: 0;
}
.page-contact .contact-sec__lede {
  max-width: 54ch;
  margin: 12px 0 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--sand-dim);
}

/* ---------- 四类合作 ---------- */
.page-contact .tracks {
  display: grid;
  gap: 16px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-contact .tracks__item {
  position: relative;
  padding: 20px 20px 22px;
  background: var(--ink-2);
  border: var(--line) solid var(--edge);
  box-shadow: var(--hard-sm);
  transition: transform 0.22s var(--ease), border-color 0.22s var(--ease);
}
.page-contact .tracks__item::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 6px;
  background: var(--amber);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform 0.26s var(--ease);
}
.page-contact .tracks__item:hover { transform: translate(-3px, -3px); }
.page-contact .tracks__item:hover::before { transform: scaleY(1); }
.page-contact .tracks__idx {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--amber);
}
.page-contact .tracks__item h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(21px, 4vw, 27px);
  letter-spacing: -0.2px;
  margin: 8px 0 12px;
}
.page-contact .tracks__who,
.page-contact .tracks__get {
  margin: 0 0 10px;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--sand-dim);
}
.page-contact .tracks__get { margin-bottom: 0; }
.page-contact .tracks__label {
  display: inline-block;
  margin-right: 8px;
  padding: 2px 7px;
  font-size: 12px;
  letter-spacing: 0.08em;
  background: var(--rock);
  color: var(--ink);
}
.page-contact .tracks__label--get { background: var(--oasis); }

/* ---------- 四步流程 ---------- */
.page-contact .flow__rail {
  display: none;
  width: 100%;
  height: 22px;
  margin: 0 0 22px;
  color: var(--amber);
}
.page-contact .flow {
  display: grid;
  gap: 14px;
}
.page-contact .flow__step {
  background: var(--ink);
  border: var(--line) solid var(--edge);
  box-shadow: var(--hard-sm);
}
.page-contact .flow__summary {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 4vw, 22px);
  letter-spacing: -0.2px;
  border-bottom: 3px solid transparent;
  transition: border-color 0.2s var(--ease);
}
.page-contact .flow__summary::-webkit-details-marker { display: none; }
.page-contact .flow__summary::marker { content: ""; }
.page-contact .flow__step[open] > .flow__summary { border-bottom-color: var(--amber); }
.page-contact .flow__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--amber);
}
.page-contact .flow__sign {
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--amber-lift);
}
.page-contact .flow__sign::before { content: "+"; }
.page-contact .flow__step[open] .flow__sign::before { content: "\2013"; }
.page-contact .flow__body { padding: 16px 18px 20px; }
.page-contact .flow__body p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--sand-dim);
}
.page-contact .flow__body p.flow__time {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cyan);
}

/* ---------- 材料清单 ---------- */
.page-contact .prep-wrap {
  display: grid;
  gap: 26px;
}
.page-contact .prep {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--line) solid var(--edge);
}
.page-contact .prep__item {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 14px;
  align-items: start;
  padding: 16px 0;
  border-bottom: 1px solid rgba(147, 166, 184, 0.24);
  font-size: 16px;
  line-height: 1.7;
}
.page-contact .prep__box {
  position: relative;
  width: 24px;
  height: 24px;
  margin-top: 3px;
  border: 2px solid var(--amber);
}
.page-contact .prep__box::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 2px;
  width: 7px;
  height: 12px;
  border-right: 3px solid var(--oasis);
  border-bottom: 3px solid var(--oasis);
  transform: rotate(42deg);
}
.page-contact .prep__aside {
  padding: 22px;
  background: var(--ink-2);
  border: var(--line) solid var(--edge);
  box-shadow: var(--hard-sm);
}
.page-contact .prep__aside h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  margin: 0 0 12px;
}
.page-contact .prep__aside p {
  margin: 0 0 12px;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--sand-dim);
}
.page-contact .prep__aside p:last-child { margin-bottom: 0; }

/* ---------- 对接分工 ---------- */
.page-contact .team {
  display: grid;
  gap: 18px;
}
.page-contact .team__col {
  padding: 22px;
  background: var(--ink);
  border: var(--line) solid var(--edge);
  box-shadow: var(--hard-sm);
}
.page-contact .team__col--data { background: var(--ink-2); }
.page-contact .team__col h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(21px, 4vw, 26px);
  margin: 14px 0 12px;
}
.page-contact .team__list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-contact .team__list li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 10px;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--sand-dim);
}
.page-contact .team__list li:last-child { margin-bottom: 0; }
.page-contact .team__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 3px;
  background: var(--amber-lift);
}
.page-contact .team__note {
  margin: 20px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--rock);
}

/* ---------- 联系方式收尾 ---------- */
.page-contact .visit {
  display: grid;
  gap: 28px;
}
.page-contact .visit .chapter-num {
  display: block;
  margin-bottom: 10px;
}
.page-contact .visit .contact-sec__title { margin: 0; }
.page-contact .visit__list {
  margin: 22px 0 0;
  padding: 0;
}
.page-contact .visit__row {
  padding: 14px 0;
  border-bottom: 1px solid rgba(147, 166, 184, 0.24);
}
.page-contact .visit__row dt {
  margin-bottom: 6px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--rock);
}
.page-contact .visit__row dd {
  margin: 0;
  font-size: 17px;
  line-height: 1.7;
  color: var(--sand);
  overflow-wrap: anywhere;
}
.page-contact .visit__note {
  margin: 20px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--sand-dim);
}
.page-contact .visit__links {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--sand-dim);
}
.page-contact .visit__links a {
  color: var(--amber-lift);
  text-decoration: none;
  border-bottom: 1px solid rgba(224, 138, 53, 0.5);
}
.page-contact .visit__links a:hover {
  color: var(--sand);
  border-bottom-color: var(--sand);
}
.page-contact .visit__media {
  margin: 0;
  border: var(--line) solid var(--edge);
  box-shadow: var(--hard);
  overflow: hidden;
}
.page-contact .visit__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* ---------- 入场 ---------- */
.page-contact [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}
.page-contact [data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .page-contact [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .page-contact .tracks__item { transition: none; }
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .contact-lead__grid { gap: 32px; }
  .page-contact .prep-wrap {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 34px;
    align-items: start;
  }
  .page-contact .team { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
}

@media (min-width: 900px) {
  .page-contact .contact-sec { padding: 72px 0; }
  .page-contact .contact-lead__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 48px;
    padding-top: 34px;
    padding-bottom: 56px;
    align-items: center;
  }
  .page-contact .tracks {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 18px;
  }
  .page-contact .tracks__item:nth-child(1) { grid-column: span 7; }
  .page-contact .tracks__item:nth-child(2) { grid-column: span 5; }
  .page-contact .tracks__item:nth-child(3) { grid-column: span 5; }
  .page-contact .tracks__item:nth-child(4) { grid-column: span 7; }
  .page-contact .flow__rail { display: block; }
  .page-contact .flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
    align-items: start;
  }
  .page-contact .visit {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 44px;
    align-items: center;
  }
}
<<<END>>>