.page-contact {
  --pc-radius: 4px;
  --pc-gap: 14px;
  --pc-rail: 236px;
}

/* ===== 首屏 ===== */
.page-contact .contact-hero {
  position: relative;
  padding-block: 34px 30px;
  background:
    radial-gradient(760px 300px at 86% -40%, rgba(35, 230, 213, 0.13), transparent 72%),
    radial-gradient(520px 260px at 8% 120%, rgba(255, 106, 43, 0.08), transparent 70%);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--orange) 42%, transparent 78%);
  opacity: 0.65;
}

.page-contact .page-title {
  margin: 10px 0 0;
  max-width: 20em;
}

.page-contact .lede {
  margin-top: 14px;
  max-width: 68ch;
}

.page-contact .hero-facts {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 14px 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.page-contact .hero-fact {
  border-left: 2px solid var(--line-2);
  padding-left: 12px;
}

.page-contact .hero-fact strong {
  display: block;
  font-family: var(--font-data);
  font-size: 26px;
  line-height: 1.1;
  color: var(--white);
  font-weight: 700;
}

.page-contact .hero-fact span {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  color: var(--mist);
  line-height: 1.5;
}

/* ===== 双栏骨架 ===== */
.page-contact .contact-shell {
  display: grid;
  gap: 26px;
  padding-block: 30px 56px;
}

.page-contact .contact-main > section + section {
  margin-top: 46px;
}

/* ===== 左侧栏 ===== */
.page-contact .rail-index {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: var(--pc-radius);
  overflow: hidden;
}

.page-contact .rail-index-title {
  margin: 0;
  padding: 13px 16px 11px;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mist);
  border-bottom: 1px solid var(--line);
}

.page-contact .rail-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .rail-index-link {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 12px 16px;
  font-size: 14px;
  color: var(--white);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: background 160ms var(--ease), color 160ms var(--ease), padding-left 160ms var(--ease);
}

.page-contact .rail-index-list li:last-child .rail-index-link {
  border-bottom: 0;
}

.page-contact .rail-index-link:hover {
  background: var(--panel-2);
  color: var(--cyan);
  padding-left: 20px;
}

.page-contact .rail-index-num {
  font-family: var(--font-data);
  font-size: 11px;
  color: var(--cyan);
  flex: none;
}

.page-contact .rail-response {
  margin-top: 16px;
  padding: 18px;
  border: 1px solid var(--line-2);
  border-left: 2px solid var(--orange);
  border-radius: var(--pc-radius);
  background: linear-gradient(180deg, rgba(255, 106, 43, 0.09), rgba(13, 23, 48, 0.85) 62%);
}

.page-contact .rail-response-label {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-contact .rail-response-time {
  margin: 10px 0 0;
  font-family: var(--font-data);
  font-size: 24px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.01em;
}

.page-contact .rail-response-sub {
  margin: 6px 0 0;
  font-size: 13px;
  color: var(--mist);
}

.page-contact .rail-response-text {
  margin: 12px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

/* ===== 区块标题 ===== */
.page-contact .block-title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 22px;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-contact .block-sub {
  margin: 0 0 20px;
  max-width: 64ch;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--mist);
}

/* ===== 联系卡 ===== */
.page-contact .contact-visual {
  margin-bottom: 16px;
  border: 1px solid var(--line);
}

.page-contact .contact-visual img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.02);
}

.page-contact .contact-cards {
  display: grid;
  gap: var(--pc-gap);
  grid-template-columns: minmax(0, 1fr);
}

.page-contact .contact-card {
  position: relative;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--pc-radius);
  background: var(--panel);
  box-shadow: 0 18px 40px -34px rgba(0, 0, 0, 0.95);
  transition: border-color 160ms var(--ease), transform 160ms var(--ease);
}

.page-contact .contact-card:hover {
  border-color: var(--line-2);
  transform: translateY(-2px);
}

.page-contact .contact-card--mail {
  border-left: 2px solid var(--orange);
}

.page-contact .contact-card--phone {
  border-left: 2px solid var(--cyan);
}

.page-contact .contact-card--addr {
  border-left: 2px solid var(--line-2);
}

.page-contact .contact-card--icp {
  border-left: 2px solid var(--amber);
  background: linear-gradient(180deg, rgba(242, 169, 59, 0.06), rgba(13, 23, 48, 0.9) 70%);
}

.page-contact .contact-label {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-contact .contact-value {
  margin: 9px 0 0;
  font-family: var(--font-data);
  font-size: 15px;
  line-height: 1.5;
  color: var(--white);
  word-break: break-word;
}

.page-contact .contact-value--lg {
  font-size: 16px;
  color: var(--cyan);
  word-break: break-all;
}

.page-contact .contact-value--text {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.7;
}

.page-contact .contact-hint {
  margin: 10px 0 0;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--mist);
}

/* ===== 合作类型卡 ===== */
.page-contact .coop-list {
  display: grid;
  gap: var(--pc-gap);
}

.page-contact .coop-card {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--pc-radius);
  background: var(--panel);
  scroll-margin-top: calc(var(--bar-h) + 24px);
  transition: border-color 160ms var(--ease), transform 160ms var(--ease);
}

.page-contact .coop-card:hover {
  border-color: var(--line-2);
  transform: translateY(-2px);
}

.page-contact .coop-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.page-contact .coop-num {
  font-size: 12px;
  color: var(--cyan);
  letter-spacing: 0.1em;
}

.page-contact .coop-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-contact .coop-spec {
  margin: 14px 0 0;
  display: grid;
  gap: 9px;
}

.page-contact .coop-spec-row {
  display: grid;
  gap: 3px;
}

.page-contact .coop-spec dt {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

.page-contact .coop-spec dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--white);
}

.page-contact .coop-foot {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line-2);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist);
}

/* ===== 流程 ===== */
.page-contact .flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-contact .flow-step {
  position: relative;
  padding: 30px 16px 16px;
  border: 1px solid var(--line);
  border-radius: var(--pc-radius);
  background: var(--panel);
}

.page-contact .flow-step::before {
  content: "";
  position: absolute;
  top: 8px;
  left: 16px;
  right: 16px;
  height: 1px;
  background: var(--line-2);
}

.page-contact .flow-step::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 16px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 3px rgba(255, 106, 43, 0.18);
}

.page-contact .flow-num {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--mist);
}

.page-contact .flow-title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: 17px;
  color: var(--white);
}

.page-contact .flow-text {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
}

/* ===== 准备清单 ===== */
.page-contact .checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .check-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 13px 2px;
  border-bottom: 1px solid var(--line);
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .check-item input {
  flex: none;
  width: 16px;
  height: 16px;
  margin-top: 4px;
  accent-color: var(--cyan);
  cursor: pointer;
}

.page-contact .check-item label {
  color: var(--white);
  cursor: pointer;
}

.page-contact .check-item input:checked + span {
  color: var(--line-2);
}

.page-contact .check-item input:checked + span label {
  color: var(--mist);
}

/* ===== 常见问题 ===== */
.page-contact .faq-list {
  display: grid;
  gap: 10px;
}

.page-contact .faq-item {
  border: 1px solid var(--line);
  border-radius: var(--pc-radius);
  background: var(--panel);
  transition: border-color 160ms var(--ease);
}

.page-contact .faq-item[open] {
  border-color: var(--line-2);
}

.page-contact .faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 15px 18px;
  font-size: 15px;
  font-weight: 600;
  color: var(--white);
  cursor: pointer;
  list-style: none;
}

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

.page-contact .faq-item summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-data);
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
  transition: color 160ms var(--ease);
}

.page-contact .faq-item[open] summary::after {
  content: "–";
  color: var(--orange);
}

.page-contact .faq-body {
  padding: 0 18px 16px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .faq-body a,
.page-contact .note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(35, 230, 213, 0.35);
}

.page-contact .faq-body a:hover,
.page-contact .note a:hover {
  border-bottom-color: var(--cyan);
}

.page-contact .note {
  margin-top: 20px;
  font-size: 13.5px;
  line-height: 1.8;
}

/* ===== 焦点与动效 ===== */
.page-contact a:focus-visible,
.page-contact summary:focus-visible,
.page-contact input:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ===== 断点 ===== */
@media (min-width: 640px) {
  .page-contact .contact-cards {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-contact .contact-card--mail {
    grid-column: span 6;
  }

  .page-contact .contact-card--phone {
    grid-column: span 3;
  }

  .page-contact .contact-card--addr {
    grid-column: span 3;
  }

  .page-contact .contact-card--icp {
    grid-column: span 6;
  }

  .page-contact .coop-spec-row {
    grid-template-columns: 88px minmax(0, 1fr);
    gap: 14px;
    align-items: baseline;
  }
}

@media (min-width: 720px) {
  .page-contact .hero-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

@media (min-width: 960px) {
  .page-contact .contact-hero {
    padding-block: 44px 38px;
  }

  .page-contact .contact-shell {
    grid-template-columns: var(--pc-rail) minmax(0, 1fr);
    gap: 44px;
    padding-block: 36px 72px;
  }

  .page-contact .contact-rail {
    position: sticky;
    top: calc(var(--bar-h) + 20px);
  }

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

  .page-contact .block-title {
    font-size: 26px;
  }
}

@media (min-width: 1180px) {
  .page-contact .contact-card--mail {
    grid-column: span 4;
  }

  .page-contact .contact-card--phone {
    grid-column: span 2;
  }

  .page-contact .contact-card--addr {
    grid-column: span 3;
  }

  .page-contact .contact-card--icp {
    grid-column: span 3;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-card,
  .page-contact .coop-card,
  .page-contact .rail-index-link,
  .page-contact .faq-item summary::after {
    transition: none;
  }

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

  .page-contact .rail-index-link:hover {
    padding-left: 16px;
  }
}
<<<END>>>