.page-contact {
  --pc-body: rgba(232, 241, 245, 0.82);
  --pc-dim: rgba(232, 241, 245, 0.66);
  color: var(--pale);
  font-family: var(--font-cn);
  background-color: var(--graphite);
  background-image:
    radial-gradient(120% 70% at 90% -12%, rgba(200, 16, 46, 0.16), transparent 58%),
    radial-gradient(100% 62% at 2% 6%, rgba(11, 60, 93, 0.62), transparent 62%),
    linear-gradient(180deg, #0b0e13 0%, #0e1116 46%, #0b1016 100%);
  padding-bottom: clamp(40px, 7vw, 96px);
  overflow-x: hidden;
}

.page-contact .pc-shell {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  padding-top: calc(var(--head-h) + clamp(22px, 5vw, 58px));
}

.page-contact .pc-hero__grid {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
  margin-top: clamp(16px, 2.5vw, 26px);
}

.page-contact .pc-hero__lead {
  min-width: 0;
}

.page-contact .pc-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-cn);
  font-weight: 900;
  font-size: clamp(2rem, 7.4vw, 4.4rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
  color: var(--pale);
  text-wrap: balance;
}

.page-contact .pc-hero__sub {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  max-width: 54ch;
  font-size: clamp(0.95rem, 1.6vw, 1.05rem);
  line-height: 1.8;
  color: var(--pc-body);
}

.page-contact .pc-quick {
  position: relative;
  min-width: 0;
  padding: clamp(22px, 3vw, 30px);
  border: 2px solid var(--ice-2);
  background:
    linear-gradient(180deg, rgba(35, 44, 55, 0.96), rgba(27, 34, 43, 0.96)),
    var(--night);
  box-shadow: var(--hard-shadow);
}

.page-contact .pc-quick__tag {
  position: absolute;
  top: -13px;
  left: 18px;
  padding: 7px 11px;
  background: var(--maple);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.page-contact .pc-quick__k {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-contact .pc-quick__tel {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 4.6vw, 2.15rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--gold);
  text-shadow: 0 0 20px rgba(242, 169, 0, 0.34);
  word-break: break-word;
}

.page-contact .pc-quick__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.page-contact .pc-quick .btn {
  margin-top: 18px;
}

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

.page-contact .pc-hero__figure {
  margin: clamp(26px, 4vw, 44px) 0 0;
  border: 2px solid var(--line);
  background: var(--night);
  overflow: hidden;
}

.page-contact .pc-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-contact .pc-figcap {
  padding: 12px 16px;
  border-top: 1px solid var(--line-soft, rgba(138, 155, 168, 0.16));
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

/* ---------- 通用标题 ---------- */
.page-contact .pc-h2 {
  margin: 12px 0 0;
  font-size: clamp(1.5rem, 4.2vw, 2.5rem);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -0.03em;
  color: var(--pale);
}

.page-contact .pc-h2--sm {
  margin-top: 0;
  font-size: clamp(1.3rem, 3.4vw, 1.9rem);
}

.page-contact .pc-note {
  margin: 16px 0 0;
  max-width: 56ch;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--pc-body);
}

.page-contact .pc-taglabel {
  display: inline-block;
  padding: 7px 11px;
  background: var(--ice);
  color: var(--pale);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
}

/* ---------- 联系资料 + 时间轴 ---------- */
.page-contact .pc-liaison {
  display: grid;
  gap: clamp(24px, 3.4vw, 40px);
  margin-top: clamp(48px, 7vw, 88px);
}

.page-contact .pc-contactcard {
  position: relative;
  min-width: 0;
  padding: clamp(24px, 3.4vw, 40px);
  border: 2px solid var(--ice-2);
  border-left: 6px solid var(--maple);
  background: linear-gradient(160deg, #232c37 0%, #1b222b 55%, #141a21 100%);
  box-shadow: var(--hard-shadow);
}

.page-contact .pc-rows {
  display: grid;
  gap: 20px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-contact .pc-row {
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.page-contact .pc-row__k {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--mist);
}

.page-contact .pc-row__v {
  margin: 10px 0 0;
  font-size: clamp(1.02rem, 2.6vw, 1.35rem);
  font-weight: 700;
  line-height: 1.5;
  color: var(--pale);
  word-break: break-word;
}

.page-contact .pc-row__hint {
  margin: 8px 0 0;
  max-width: 46ch;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--pc-dim);
}

.page-contact .pc-row .copy-btn {
  margin-top: 12px;
}

.page-contact .pc-hours {
  min-width: 0;
  padding: clamp(22px, 3vw, 34px);
  border: 2px solid var(--line);
  background: rgba(27, 34, 43, 0.72);
}

.page-contact .pc-clock {
  list-style: none;
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0 0 0 20px;
  border-left: 2px solid var(--ice-2);
  display: grid;
  gap: 24px;
}

.page-contact .pc-clock li {
  position: relative;
  min-width: 0;
}

.page-contact .pc-clock li::before {
  content: "";
  position: absolute;
  left: -27px;
  top: 5px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--maple);
  box-shadow: 0 0 0 4px rgba(200, 16, 46, 0.2);
}

.page-contact .pc-clock li:first-child::before {
  background: var(--aurora);
  box-shadow: 0 0 0 4px rgba(74, 222, 222, 0.16);
}

.page-contact .pc-clock__time {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.92rem;
  letter-spacing: 0.04em;
  color: var(--gold);
}

.page-contact .pc-clock__txt {
  margin: 8px 0 0;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--pc-body);
}

/* ---------- 合作分类 ---------- */
.page-contact .pc-collab {
  display: grid;
  gap: clamp(24px, 3.4vw, 40px);
  margin-top: clamp(48px, 7vw, 88px);
}

.page-contact .pc-collab__main {
  min-width: 0;
}

.page-contact .pc-switch {
  position: relative;
  margin-top: clamp(22px, 3vw, 30px);
}

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

.page-contact .pc-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .pc-tabs label {
  cursor: pointer;
  padding: 11px 16px;
  border: 2px solid var(--line);
  background: rgba(27, 34, 43, 0.6);
  color: var(--mist);
  font-size: 0.92rem;
  letter-spacing: 0.02em;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .pc-tabs label:hover {
  border-color: var(--ice-2);
  color: var(--pale);
}

.page-contact #pc-topic-data:checked ~ .pc-tabs label[for="pc-topic-data"],
.page-contact #pc-topic-api:checked ~ .pc-tabs label[for="pc-topic-api"],
.page-contact #pc-topic-research:checked ~ .pc-tabs label[for="pc-topic-research"] {
  background: var(--maple);
  border-color: var(--maple);
  color: #fff;
}

.page-contact #pc-topic-data:focus-visible ~ .pc-tabs label[for="pc-topic-data"],
.page-contact #pc-topic-api:focus-visible ~ .pc-tabs label[for="pc-topic-api"],
.page-contact #pc-topic-research:focus-visible ~ .pc-tabs label[for="pc-topic-research"] {
  outline: 2px solid var(--aurora);
  outline-offset: 2px;
}

.page-contact .pc-panels {
  margin-top: 20px;
  padding: clamp(20px, 3vw, 30px);
  border: 2px solid var(--ice-2);
  background: linear-gradient(180deg, #1b222b 0%, #131a22 100%);
  box-shadow: var(--hard-shadow);
}

.page-contact .pc-panel {
  display: none;
}

.page-contact #pc-topic-data:checked ~ .pc-panels .pc-panel--data,
.page-contact #pc-topic-api:checked ~ .pc-panels .pc-panel--api,
.page-contact #pc-topic-research:checked ~ .pc-panels .pc-panel--research {
  display: block;
  animation: pc-fade 0.32s var(--ease);
}

.page-contact .pc-panel h3 {
  margin: 0 0 12px;
  font-size: 1.12rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--pale);
}

.page-contact .pc-panel p {
  margin: 0 0 14px;
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--pc-body);
}

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

.page-contact .pc-panel li {
  position: relative;
  padding-left: 18px;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--pc-dim);
}

.page-contact .pc-panel li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 9px;
  height: 2px;
  background: var(--maple);
}

.page-contact .pc-collab__figure {
  margin: 0;
  min-width: 0;
  align-self: start;
  border: 2px solid var(--line);
  background: var(--night);
  box-shadow: var(--hard-shadow);
}

.page-contact .pc-collab__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

@keyframes pc-fade {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}

/* ---------- 到访与园区 ---------- */
.page-contact .pc-visit {
  display: grid;
  gap: clamp(26px, 3.4vw, 42px);
  margin-top: clamp(48px, 7vw, 88px);
}

.page-contact .pc-visit__map {
  min-width: 0;
}

.page-contact .pc-map {
  position: relative;
  width: 100%;
  aspect-ratio: 8 / 5;
  border: 2px solid var(--ice-2);
  background-color: #101820;
  background-image:
    linear-gradient(90deg, rgba(138, 155, 168, 0.12) 1px, transparent 1px),
    linear-gradient(180deg, rgba(138, 155, 168, 0.12) 1px, transparent 1px),
    linear-gradient(155deg, #101820 0%, #0b3c5d 140%);
  background-size: calc(100% / 8) calc(100% / 5), calc(100% / 8) calc(100% / 5), 100% 100%;
  box-shadow: var(--hard-shadow);
  overflow: hidden;
}

.page-contact .pc-map__road {
  position: absolute;
  background: linear-gradient(90deg, transparent, rgba(242, 169, 0, 0.5), transparent);
}

.page-contact .pc-map__road--h {
  left: 0;
  width: 100%;
  top: 47%;
  height: 2px;
}

.page-contact .pc-map__road--v {
  top: 0;
  bottom: 0;
  left: 40%;
  width: 2px;
  background: linear-gradient(180deg, transparent, rgba(242, 169, 0, 0.5), transparent);
}

.page-contact .pc-map__block {
  position: absolute;
  border: 1px solid rgba(74, 222, 222, 0.28);
  background: rgba(11, 60, 93, 0.42);
}

.page-contact .pc-map__block--a { left: 8%; top: 12%; width: 26%; height: 22%; }
.page-contact .pc-map__block--b { left: 46%; top: 9%; width: 30%; height: 24%; }
.page-contact .pc-map__block--c { left: 12%; top: 57%; width: 22%; height: 26%; }
.page-contact .pc-map__block--d { left: 56%; top: 58%; width: 28%; height: 24%; }

.page-contact .pc-map__label {
  position: absolute;
  left: 6%;
  top: 6%;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--mist);
}

.page-contact .pc-map__pin {
  position: absolute;
  left: 52%;
  top: 42%;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--maple);
  box-shadow: 0 0 0 6px rgba(200, 16, 46, 0.22), 0 0 22px rgba(200, 16, 46, 0.6);
  animation: pc-pulse 2.8s ease-in-out infinite;
}

.page-contact .pc-map__pin::after {
  content: "博云路2号";
  position: absolute;
  left: 22px;
  top: -7px;
  white-space: nowrap;
  padding: 6px 9px;
  border: 1px solid var(--line);
  background: rgba(14, 17, 22, 0.88);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--pale);
}

@keyframes pc-pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.18); }
}

.page-contact .pc-map__cap {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-contact .pc-visit__text {
  min-width: 0;
}

.page-contact .pc-visit__text p {
  margin: 14px 0 0;
  max-width: 52ch;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--pc-body);
}

/* ---------- 数据纠错 ---------- */
.page-contact .pc-fix {
  margin-top: clamp(48px, 7vw, 88px);
  padding-top: clamp(28px, 4vw, 44px);
  border-top: 2px solid var(--line);
}

.page-contact .pc-fold {
  margin-top: clamp(22px, 3vw, 30px);
  border: 2px solid var(--ice-2);
  background: rgba(27, 34, 43, 0.74);
}

.page-contact .pc-fold summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
  font-size: 1rem;
  font-weight: 700;
  color: var(--pale);
}

.page-contact .pc-fold summary::-webkit-details-marker {
  display: none;
}

.page-contact .pc-fold summary::after {
  content: "＋";
  font-family: var(--font-mono);
  font-size: 1.05rem;
  color: var(--gold);
}

.page-contact .pc-fold[open] summary::after {
  content: "−";
}

.page-contact .pc-fold__body {
  padding: 0 20px clamp(20px, 3vw, 28px);
  border-top: 1px solid var(--line);
}

.page-contact .pc-fields {
  display: grid;
  gap: 16px;
  margin-top: 22px;
}

.page-contact .pc-field {
  display: grid;
  gap: 8px;
  min-width: 0;
}

.page-contact .pc-field label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--mist);
}

.page-contact .pc-field input,
.page-contact .pc-field textarea {
  width: 100%;
  box-sizing: border-box;
  padding: 12px 14px;
  border: 2px solid var(--line);
  border-radius: 0;
  background: #0c1016;
  color: var(--pale);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-contact .pc-field textarea {
  min-height: 112px;
  resize: vertical;
}

.page-contact .pc-field input:focus,
.page-contact .pc-field textarea:focus {
  outline: none;
  border-color: var(--aurora);
  box-shadow: 0 0 0 3px rgba(74, 222, 222, 0.16);
}

.page-contact .pc-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-top: 20px;
}

.page-contact .pc-fineprint {
  margin: 0;
  max-width: 46ch;
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--mist);
  word-break: break-word;
}

/* ---------- 继续了解 ---------- */
.page-contact .pc-next {
  display: grid;
  gap: 14px;
  margin-top: clamp(44px, 6vw, 78px);
}

.page-contact .pc-next__item {
  display: block;
  padding: 18px 20px;
  border: 2px solid var(--line);
  background: rgba(27, 34, 43, 0.5);
  color: var(--pale);
  text-decoration: none;
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-contact .pc-next__item:hover,
.page-contact .pc-next__item:focus-visible {
  transform: translate(-2px, -2px);
  border-color: var(--maple);
  background: rgba(35, 44, 55, 0.9);
}

.page-contact .pc-next__k {
  display: block;
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.page-contact .pc-next__v {
  display: block;
  margin-top: 8px;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-contact .pc-hero__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    align-items: start;
  }

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

  .page-contact .pc-field--full {
    grid-column: 1 / -1;
  }

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

@media (min-width: 960px) {
  .page-contact .pc-liaison {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-contact .pc-collab {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: start;
  }

  .page-contact .pc-visit {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    align-items: center;
  }

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

@media (max-width: 599px) {
  .page-contact .pc-quick__acts .copy-btn {
    flex: 1 1 auto;
  }

  .page-contact .pc-tabs label {
    flex: 1 1 100%;
    text-align: center;
  }
}
<<<END>>>