.page-contact {
  --pc-panel: #10273F;
  --pc-rule: #1E3B5C;
  --pc-glow: rgba(123, 232, 180, 0.16);
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  border-bottom: 1px solid var(--c-grid);
}
.page-contact .breadcrumb .container {
  padding-top: 14px;
  padding-bottom: 14px;
}
.page-contact .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  line-height: 1.6;
}
.page-contact .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--c-grid);
}
.page-contact .breadcrumb__link {
  color: var(--c-mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.page-contact .breadcrumb__link:hover,
.page-contact .breadcrumb__link:focus-visible {
  color: var(--c-green-hi);
  border-bottom-color: var(--c-green-hi);
  outline: none;
}
.page-contact .breadcrumb__current {
  color: var(--c-white);
}

/* ---------- 首屏 ---------- */
.page-contact__hero {
  padding-top: clamp(26px, 4.5vw, 54px);
}
.page-contact__hero .kicker {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .2em;
  color: var(--c-green);
  margin: 0;
}
.page-contact__hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 6.2vw, 62px);
  line-height: 1.04;
  letter-spacing: -0.01em;
  color: var(--c-white);
  margin: 14px 0 0;
  max-width: 17ch;
}
.page-contact__lead {
  margin: 18px 0 0;
  max-width: 64ch;
  font-size: 16.5px;
  line-height: 1.75;
  color: var(--c-mist);
}
.page-contact__hero-grid {
  margin-top: clamp(26px, 3.6vw, 44px);
}

/* ---------- 联系卡片 ---------- */
.page-contact .contact-cards {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-contact .contact-card {
  position: relative;
  background: linear-gradient(158deg, rgba(30, 59, 92, .5), rgba(16, 39, 63, .92));
  border: 1px solid var(--c-grid);
  border-radius: var(--radius);
  padding: 18px 20px 20px 24px;
  box-shadow: var(--shadow);
}
.page-contact .contact-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 3px;
  border-radius: 2px;
  background: var(--c-green);
}
.page-contact .contact-card--mail::before { background: var(--c-orange); }
.page-contact .contact-card--tel::before { background: var(--c-green); }
.page-contact .contact-card--addr::before { background: var(--c-green-hi); }

.page-contact .contact-card__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 12px;
}
.page-contact .contact-card__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--c-mist);
}
.page-contact .contact-card__tag {
  font-size: 11px;
  letter-spacing: .04em;
  padding: 2px 9px;
  border: 1px solid var(--c-grid);
  border-radius: 999px;
  color: var(--c-green-hi);
  white-space: nowrap;
}
.page-contact .contact-card__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(15px, 2.1vw, 19px);
  line-height: 1.45;
  letter-spacing: .01em;
  color: var(--c-white);
  margin: 12px 0 0;
  overflow-wrap: anywhere;
}
.page-contact .contact-card__value--text {
  font-family: var(--font-body);
  font-size: 15.5px;
  line-height: 1.7;
  letter-spacing: 0;
}
.page-contact .contact-card__hint {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.68;
  color: var(--c-mist);
}
.page-contact .contact-card__actions {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
}
.page-contact .contact-card__map {
  display: block;
  width: 100%;
  max-width: 300px;
  height: auto;
  margin-top: 16px;
}

/* ---------- 复制按钮与状态 ---------- */
.page-contact .copy-btn {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--c-green-hi);
  background: transparent;
  border: 1px solid var(--c-grid);
  border-radius: var(--radius);
  padding: 7px 15px;
  cursor: pointer;
  transition: color .22s var(--ease), border-color .22s var(--ease), background-color .22s var(--ease);
}
.page-contact .copy-btn:hover,
.page-contact .copy-btn:focus-visible {
  color: var(--c-white);
  border-color: var(--c-green);
  background: rgba(47, 191, 113, .14);
  outline: none;
}
.page-contact .copy-btn:focus-visible {
  box-shadow: 0 0 0 2px var(--c-green-hi);
}
.page-contact .copy-btn.is-done {
  color: var(--c-night);
  background: var(--c-green);
  border-color: var(--c-green);
}
.page-contact .copy-status {
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--c-green-hi);
  min-height: 1em;
}

/* ---------- 首屏竖幅图 ---------- */
.page-contact .page-contact__portrait {
  display: block;
  margin: 0;
  border: 1px solid var(--c-grid);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--c-stand);
}
.page-contact .page-contact__portrait img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  filter: saturate(.86) contrast(1.05);
  max-width: 100%;
}
.page-contact .media__caption {
  margin: 10px 0 0;
  font-size: 12.5px;
  line-height: 1.62;
  color: var(--c-mist);
}

/* ---------- 宽幅图 ---------- */
.page-contact__band {
  padding-top: 0;
}
.page-contact .page-contact__wide {
  display: block;
  margin: 0;
  border: 1px solid var(--c-grid);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--c-stand);
}
.page-contact .page-contact__wide img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 2;
  object-fit: cover;
  max-width: 100%;
  filter: saturate(.88);
}

/* ---------- 章节头 ---------- */
.page-contact .section-head {
  max-width: 58ch;
  margin-bottom: clamp(20px, 3vw, 34px);
}
.page-contact .section-head .kicker {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .2em;
  color: var(--c-orange);
  margin: 0;
}
.page-contact .section-head h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 3.5vw, 38px);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--c-white);
  margin: 12px 0 0;
}

/* ---------- 纠错说明 ---------- */
.page-contact .prose {
  margin: 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--c-mist);
  max-width: 68ch;
}
.page-contact .field-list {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  background: var(--c-grid);
  border: 1px solid var(--c-grid);
  border-radius: var(--radius);
  overflow: hidden;
}
.page-contact .field-list li {
  background: var(--c-stand);
  padding: 13px 16px;
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: 6px 14px;
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--c-white);
}
.page-contact .field-list__key {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--c-green);
  padding-top: 3px;
}

/* ---------- 标题模板块 ---------- */
.page-contact .template {
  background: var(--c-panel);
  border: 1px solid var(--c-green);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow);
}
.page-contact .template__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: #1E3B5C;
}
.page-contact .template__code {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(14.5px, 2.1vw, 19px);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: .01em;
  color: var(--c-night);
  background: #EAF1F8;
  border: 1px dashed var(--c-green);
  border-radius: var(--radius);
  padding: 14px 16px;
  overflow-wrap: anywhere;
}
.page-contact .template .copy-btn {
  margin-top: 16px;
  color: #0A1A2F;
  border-color: #93A7BE;
  background: transparent;
}
.page-contact .template .copy-btn:hover,
.page-contact .template .copy-btn:focus-visible {
  color: var(--c-night);
  background: var(--c-green);
  border-color: var(--c-green);
}
.page-contact .template .copy-btn.is-done {
  color: var(--c-night);
  background: var(--c-green-hi);
  border-color: var(--c-green-hi);
}
.page-contact .template .copy-status {
  color: #2FBF71;
}
.page-contact .template__note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.66;
  color: #1E3B5C;
}

/* ---------- 合作方向折叠卡 ---------- */
.page-contact .topic {
  background: var(--c-stand);
  border: 1px solid var(--c-grid);
  border-radius: var(--radius);
  transition: border-color .24s var(--ease), background-color .24s var(--ease);
}
.page-contact .topic:hover {
  border-color: #2F4E73;
}
.page-contact .topic[open] {
  border-color: var(--c-green);
  background: linear-gradient(170deg, rgba(30, 59, 92, .55), rgba(16, 39, 63, .95));
}
.page-contact .topic__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(17px, 2.2vw, 22px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--c-white);
}
.page-contact .topic__head::-webkit-details-marker { display: none; }
.page-contact .topic__head::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--c-orange);
}
.page-contact .topic[open] .topic__head::after {
  content: "−";
}
.page-contact .topic__head:focus-visible {
  outline: 2px solid var(--c-green-hi);
  outline-offset: -2px;
}
.page-contact .topic__body {
  padding: 16px 20px 20px;
  border-top: 1px solid var(--c-grid);
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--c-mist);
}
.page-contact .topic__body p {
  margin: 0;
}
.page-contact .topic__body ul {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 7px;
}
.page-contact .topic__body li {
  position: relative;
  padding-left: 18px;
}
.page-contact .topic__body li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 8px;
  height: 1px;
  background: var(--c-green);
}

/* ---------- 回复时效三段 ---------- */
.page-contact .timeline-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--c-grid);
  border: 1px solid var(--c-grid);
  border-radius: var(--radius);
  overflow: hidden;
}
.page-contact .step {
  background: var(--c-stand);
  padding: 18px 18px 20px;
  display: grid;
  gap: 6px;
}
.page-contact .step__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--c-orange);
}
.page-contact .step__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 19px;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--c-white);
}
.page-contact .step__text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.68;
  color: var(--c-mist);
}

/* ---------- 运营与备案 ---------- */
.page-contact .registry {
  height: 100%;
  border: 1px solid var(--c-grid);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(16, 39, 63, .9), rgba(10, 26, 47, .96));
  padding: 20px 22px 22px;
  box-shadow: var(--shadow);
}
.page-contact .registry__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--c-green);
}
.page-contact .registry__list {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  background: var(--c-grid);
  border: 1px solid var(--c-grid);
  border-radius: var(--radius);
  overflow: hidden;
}
.page-contact .registry__list li {
  background: var(--c-night);
  padding: 12px 14px;
  display: grid;
  grid-template-columns: 76px 1fr;
  gap: 4px 12px;
  font-size: 14px;
  line-height: 1.66;
  color: var(--c-white);
}
.page-contact .registry__key {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--c-mist);
  padding-top: 3px;
}
.page-contact__timing-note {
  margin: clamp(20px, 3vw, 30px) 0 0;
  max-width: 76ch;
  padding-left: 16px;
  border-left: 2px solid var(--c-green);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--c-mist);
}

/* ---------- 平板 ---------- */
@media (min-width: 700px) {
  .page-contact .field-list li {
    grid-template-columns: 104px 1fr;
  }
  .page-contact .timeline-steps {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-contact .registry__list li {
    grid-template-columns: 84px 1fr;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1024px) {
  .page-contact__hero h1 {
    max-width: 15ch;
  }
  .page-contact .contact-cards {
    align-content: start;
  }
  .page-contact .page-contact__portrait img {
    aspect-ratio: 4 / 5;
  }
  .page-contact .step {
    padding: 22px 20px 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .copy-btn,
  .page-contact .topic {
    transition: none;
  }
}
<<<END>>>