.page-contact {
  --pc-cyan-soft: rgba(53, 230, 196, 0.4);
  color: var(--cream);
}

.page-contact .breadcrumb {
  padding: 16px 0 6px;
  font-size: 13px;
}

.page-contact .crumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .crumb-link {
  color: var(--rock);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.16s ease, border-color 0.16s ease;
}

.page-contact .crumb-link:hover,
.page-contact .crumb-link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-contact .crumb-sep {
  color: var(--line-soft);
}

.page-contact .crumb-current {
  color: var(--cream);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 20px 0 44px;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(115deg, transparent 0 44%, rgba(182, 106, 78, 0.18) 44% 58%, transparent 58%),
    linear-gradient(180deg, rgba(12, 43, 70, 0.92) 0%, rgba(6, 26, 46, 0) 88%);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0.55;
  background-image:
    linear-gradient(to right, rgba(29, 66, 96, 0.5) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(29, 66, 96, 0.5) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 88%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 88%);
}

.page-contact .contact-hero-grid {
  display: grid;
  gap: 28px;
}

.page-contact .hero-copy,
.page-contact .hero-visual {
  min-width: 0;
}

.page-contact h1 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(30px, 8vw, 54px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.01em;
  color: var(--white);
}

.page-contact .hero-copy .lede {
  margin: 16px 0 0;
  max-width: 48ch;
  font-size: 15px;
  line-height: 1.9;
  color: var(--rock);
}

.page-contact .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-contact .hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 26px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.page-contact .hero-stats dt {
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--rock);
}

.page-contact .hero-stats dd {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.5;
  color: var(--cyan);
}

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

.page-contact .route-tiles {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .route-tiles a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  background: rgba(12, 43, 70, 0.82);
  border: 1px solid var(--line);
  color: var(--cream);
  font-size: 14px;
  text-decoration: none;
  transition: border-color 0.18s ease, background-color 0.18s ease, color 0.18s ease;
}

.page-contact .route-tiles a:hover,
.page-contact .route-tiles a:focus-visible {
  border-color: var(--signal);
  background: rgba(255, 106, 61, 0.1);
  color: var(--white);
}

.page-contact .route-tiles .coord {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--rock);
}

/* ---------- 页内目录 ---------- */
.page-contact .contact-index {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(4, 18, 31, 0.72);
}

.page-contact .contact-index ul {
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 10px 0;
  list-style: none;
  overflow-x: auto;
}

.page-contact .contact-index .toc-link {
  display: inline-block;
  white-space: nowrap;
  padding: 6px 10px;
  border: 1px solid transparent;
  color: var(--rock);
  font-size: 13px;
  text-decoration: none;
  transition: color 0.16s ease, border-color 0.16s ease;
}

.page-contact .contact-index .toc-link:hover,
.page-contact .contact-index .toc-link:focus-visible {
  color: var(--cyan);
  border-color: var(--line-soft);
}

.page-contact .contact-index .toc-link[aria-current="true"] {
  color: var(--navy-deep);
  background: var(--cyan);
  border-color: var(--cyan);
}

/* ---------- 章节通用 ---------- */
.page-contact .contact-band {
  padding: clamp(38px, 7vw, 70px) 0;
}

.page-contact .contact-band--panel {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(12, 43, 70, 0.62), rgba(6, 26, 46, 0));
}

.page-contact .band-head {
  max-width: 62ch;
  margin-bottom: 26px;
}

.page-contact h2 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 4.8vw, 34px);
  font-weight: 700;
  line-height: 1.18;
  color: var(--white);
}

.page-contact .band-lede {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--rock);
}

/* ---------- 四条通道 ---------- */
.page-contact .channel-grid {
  display: grid;
  gap: 12px;
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
  padding: 20px 18px 18px;
  background: var(--panel);
  border: 1px solid var(--line);
  transition: border-color 0.18s ease, background-color 0.18s ease;
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 36px;
  background: var(--cyan);
}

.page-contact .channel-card--b::before {
  background: var(--clay);
}

.page-contact .channel-card--c::before {
  background: var(--moss);
}

.page-contact .channel-card--d::before {
  background: var(--sand);
}

.page-contact .channel-card:hover {
  border-color: var(--signal);
  background: rgba(12, 43, 70, 0.92);
}

.page-contact .channel-coord {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--rock);
}

.page-contact .channel-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--white);
}

.page-contact .channel-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--rock);
}

.page-contact .channel-card .channel-mail a {
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 13px;
  text-decoration: none;
  word-break: break-all;
  border-bottom: 1px solid var(--pc-cyan-soft);
  transition: color 0.16s ease, border-color 0.16s ease;
}

.page-contact .channel-card .channel-mail a:hover,
.page-contact .channel-card .channel-mail a:focus-visible {
  color: var(--white);
  border-bottom-color: var(--signal);
}

.page-contact .channel-link {
  margin-top: auto;
  align-self: flex-start;
  padding-bottom: 2px;
  font-size: 13px;
  color: var(--cream);
  text-decoration: none;
  border-bottom: 1px solid var(--line-soft);
  transition: color 0.16s ease, border-color 0.16s ease;
}

.page-contact .channel-link:hover,
.page-contact .channel-link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 客服邮箱 ---------- */
.page-contact .mailbox-grid {
  display: grid;
  gap: 24px;
}

.page-contact .mailbox-main {
  min-width: 0;
}

.page-contact .mailbox-address {
  display: block;
  margin: 16px 0 4px;
  padding-bottom: 10px;
  font-family: var(--font-mono);
  font-size: clamp(16px, 4.4vw, 28px);
  line-height: 1.35;
  color: var(--cyan);
  text-decoration: none;
  word-break: break-all;
  border-bottom: 1px dashed var(--pc-cyan-soft);
  transition: color 0.16s ease, border-color 0.16s ease;
}

.page-contact .mailbox-address:hover,
.page-contact .mailbox-address:focus-visible {
  color: var(--white);
  border-bottom-color: var(--signal);
}

.page-contact .mailbox-main > p {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--rock);
}

.page-contact .prep-list {
  display: grid;
  gap: 10px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .prep-list li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.75;
  color: var(--cream);
}

.page-contact .prep-index {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--signal);
}

.page-contact .mailbox-aside {
  display: grid;
  align-content: start;
  gap: 12px;
  min-width: 0;
}

.page-contact .aside-panel {
  padding: 16px;
  background: rgba(4, 18, 31, 0.6);
  border: 1px solid var(--line);
  transition: border-color 0.18s ease;
}

.page-contact .aside-panel:hover {
  border-color: var(--line-soft);
}

.page-contact .aside-label {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--rock);
}

.page-contact .aside-val {
  margin: 8px 0 6px;
  font-family: var(--font-mono);
  font-size: clamp(22px, 5vw, 30px);
  line-height: 1.2;
  color: var(--signal);
}

.page-contact .aside-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--rock);
}

/* ---------- 合作共建 ---------- */
.page-contact .partner-grid {
  display: grid;
  gap: 12px;
}

.page-contact .partner-card {
  padding: 18px 16px 18px 18px;
  background: rgba(12, 43, 70, 0.55);
  border-left: 3px solid var(--moss);
  transition: background-color 0.18s ease;
}

.page-contact .partner-card:hover {
  background: rgba(12, 43, 70, 0.85);
}

.page-contact .partner-card--clay {
  border-left-color: var(--clay);
}

.page-contact .partner-card--sand {
  border-left-color: var(--sand);
}

.page-contact .partner-card h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  color: var(--white);
}

.page-contact .partner-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--rock);
}

.page-contact .flow {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: pc-step;
}

.page-contact .flow li {
  flex: 1 1 170px;
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--rock);
}

.page-contact .flow li::before {
  content: "0" counter(pc-step);
  counter-increment: pc-step;
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
}

/* ---------- 电话与地址 ---------- */
.page-contact .visit-grid {
  display: grid;
  gap: 24px;
}

.page-contact .visit-main {
  min-width: 0;
}

.page-contact .visit-list {
  display: grid;
  margin: 18px 0 0;
  padding: 0;
}

.page-contact .visit-row {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .visit-row dt {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--rock);
}

.page-contact .visit-row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--white);
  word-break: break-word;
}

.page-contact .visit-row dd a {
  color: var(--cyan);
  font-family: var(--font-mono);
  text-decoration: none;
  word-break: break-all;
  border-bottom: 1px solid var(--pc-cyan-soft);
  transition: color 0.16s ease, border-color 0.16s ease;
}

.page-contact .visit-row dd a:hover,
.page-contact .visit-row dd a:focus-visible {
  color: var(--white);
  border-bottom-color: var(--signal);
}

.page-contact .visit-subtitle {
  margin: 26px 0 12px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  color: var(--white);
}

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

.page-contact .visit-prep li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--rock);
}

.page-contact .visit-prep li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 8px;
  height: 1px;
  background: var(--signal);
}

.page-contact .visit-visual {
  min-width: 0;
}

/* ---------- 常用路径 ---------- */
.page-contact .path-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-contact .path-list li {
  border-bottom: 1px solid var(--line);
}

.page-contact .path-list a {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 15px 4px;
  color: var(--cream);
  text-decoration: none;
  transition: color 0.16s ease, background-color 0.16s ease;
}

.page-contact .path-list a:hover,
.page-contact .path-list a:focus-visible {
  color: var(--cyan);
  background: rgba(53, 230, 196, 0.07);
}

.page-contact .path-coord {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--signal);
}

.page-contact .path-text {
  display: block;
  min-width: 0;
}

.page-contact .path-text strong {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: inherit;
}

.page-contact .path-text span {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--rock);
}

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

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

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

  .page-contact .visit-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
  }

  .page-contact .hero-stats dd {
    font-size: 15px;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-hero {
    padding: 28px 0 56px;
  }

  .page-contact .contact-hero-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
    gap: 40px;
  }

  .page-contact .hero-copy .lede {
    font-size: 16px;
  }

  .page-contact .mailbox-grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.55fr);
    gap: 34px;
  }

  .page-contact .path-list a {
    grid-template-columns: 56px minmax(0, 1fr);
    padding: 18px 6px;
  }
}