.page-contact {
  --contact-radius: 4px;
  --contact-gap: 1.25rem;
}

/* ---------- 面包屑 ---------- */
.page-contact .crumbs {
  padding-top: 1.25rem;
  padding-bottom: 0.25rem;
}

.page-contact .crumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.8125rem;
  color: var(--muted);
}

.page-contact .crumbs li + li::before {
  content: "/";
  margin-right: 0.4rem;
  color: var(--line);
}

.page-contact .crumbs a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-contact .crumbs a:hover,
.page-contact .crumbs a:focus-visible {
  color: var(--copper);
  border-bottom-color: var(--copper);
}

/* ---------- 首屏 ---------- */
.page-contact .section--hero {
  padding-top: 1.75rem;
  padding-bottom: 3rem;
  background:
    linear-gradient(180deg, var(--paper) 0%, var(--paper) 62%, transparent 62%);
}

.page-contact .contact-hero {
  display: grid;
  gap: 2rem;
  align-items: center;
}

.page-contact .hero-copy .eyebrow {
  margin: 0 0 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--copper);
}

.page-contact .hero-copy h1 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.75rem, 4.4vw, 2.75rem);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--ink);
  max-width: 20ch;
}

.page-contact .hero-copy .lede {
  margin: 0 0 1.5rem;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--muted);
  max-width: 46ch;
}

.page-contact .quick-contacts {
  display: grid;
  gap: 0.6rem;
  margin: 0 0 1.5rem;
  padding: 0;
}

.page-contact .quick-item {
  display: grid;
  grid-template-columns: 5.5rem minmax(0, 1fr);
  align-items: baseline;
  gap: 0.75rem;
  padding: 0.65rem 0.9rem;
  border-left: 2px solid var(--copper);
  background: var(--white);
  border-radius: 0 var(--contact-radius) var(--contact-radius) 0;
  box-shadow: var(--shadow-1);
}

.page-contact .quick-label {
  font-size: 0.8125rem;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.page-contact .quick-value {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--ink);
  word-break: break-all;
  user-select: all;
}

.page-contact .quick-value.mono {
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

.page-contact .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-contact .hero-visual {
  margin: 0;
  position: relative;
}

.page-contact .hero-visual img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: var(--contact-radius);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-2);
}

.page-contact .hero-visual .figure-caption {
  margin-top: 0.7rem;
  font-size: 0.8125rem;
  color: var(--muted);
  line-height: 1.6;
}

/* ---------- 通用章节头 ---------- */
.page-contact .chapter {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
  margin-bottom: 2rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--line);
}

.page-contact .chapter-no {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  line-height: 1;
  color: var(--copper);
  letter-spacing: 0.02em;
  padding-top: 0.15rem;
}

.page-contact .chapter-title {
  margin: 0 0 0.6rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.375rem, 3vw, 1.875rem);
  line-height: 1.2;
  color: var(--ink);
}

.page-contact .chapter .lede {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--muted);
  max-width: 60ch;
}

.page-contact .chapter--on-dark {
  border-bottom-color: rgba(233, 238, 246, 0.18);
}

.page-contact .chapter--on-dark .chapter-title {
  color: var(--on-dark);
}

.page-contact .chapter--on-dark .lede {
  color: var(--on-dark-dim);
}

/* ---------- 通道 + 准备清单 ---------- */
.page-contact .section--paper {
  background: var(--paper);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .channel-layout {
  display: grid;
  gap: 2rem;
}

.page-contact .channel-column {
  display: grid;
  gap: var(--contact-gap);
}

.page-contact .channel-card {
  position: relative;
  padding: 1.5rem 1.4rem 1.3rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 2px solid var(--copper);
  border-radius: var(--contact-radius);
  box-shadow: var(--shadow-1);
}

.page-contact .channel-no {
  display: inline-block;
  margin-bottom: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--teal);
}

.page-contact .channel-title {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.125rem;
  line-height: 1.3;
  color: var(--ink);
}

.page-contact .channel-text {
  margin: 0 0 0.9rem;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .field {
  display: block;
  padding: 0.7rem 0.85rem;
  border: 1px dashed var(--line);
  border-radius: 3px;
  background: var(--paper);
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--ink);
  word-break: break-all;
  user-select: all;
}

.page-contact .field.mono {
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

.page-contact .channel-note {
  margin: 0.7rem 0 0;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--muted);
}

/* 准备清单 */
.page-contact .prep-column {
  padding: 1.5rem 1.25rem 1.35rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--contact-radius);
  box-shadow: var(--shadow-1);
}

.page-contact .prep-heading {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.125rem;
  line-height: 1.3;
  color: var(--ink);
}

.page-contact .prep-sub {
  margin: 0 0 1.1rem;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .segmented {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding: 0.35rem;
  margin-bottom: 1.1rem;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 999px;
}

.page-contact .segmented [role="tab"] {
  flex: 1 1 auto;
  min-width: 6.5rem;
  padding: 0.5rem 0.85rem;
  border: 0;
  border-radius: 999px;
  background: transparent;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--muted);
  cursor: pointer;
  transition: background 160ms var(--ease), color 160ms var(--ease);
}

.page-contact .segmented [role="tab"]:hover {
  color: var(--ink);
}

.page-contact .segmented [role="tab"][aria-selected="true"] {
  background: var(--copper);
  color: var(--white);
  box-shadow: var(--shadow-1);
}

.page-contact .segmented [role="tab"]:focus-visible {
  outline: 2px solid var(--copper);
  outline-offset: 2px;
}

.page-contact .panel-lead {
  margin: 0 0 0.9rem;
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--ink);
  padding-left: 0.75rem;
  border-left: 2px solid var(--teal);
}

.page-contact .prep-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.1rem;
}

.page-contact .prep-list li {
  display: grid;
  grid-template-columns: 2.25rem minmax(0, 1fr);
  gap: 0.6rem;
  align-items: baseline;
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--ink);
}

.page-contact .prep-list li:last-child {
  border-bottom: 0;
}

.page-contact .prep-key {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--copper);
}

.page-contact .prep-txt {
  color: var(--ink);
}

.page-contact .prep-foot {
  margin: 1.1rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .prep-foot a {
  color: var(--copper);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 122, 46, 0.4);
}

.page-contact .prep-foot a:hover,
.page-contact .prep-foot a:focus-visible {
  border-bottom-color: var(--copper);
}

/* ---------- 山东本地化服务示例 ---------- */
.page-contact .section--deep {
  background: var(--indigo-deep);
  color: var(--on-dark);
}

.page-contact .shandong-layout {
  display: grid;
  gap: 2rem;
  align-items: start;
}

.page-contact .addr-block {
  padding: 1.1rem 1.2rem;
  border: 1px solid rgba(233, 238, 246, 0.2);
  border-left: 2px solid var(--copper);
  border-radius: 0 var(--contact-radius) var(--contact-radius) 0;
  background: rgba(27, 42, 74, 0.55);
  margin-bottom: 1.5rem;
}

.page-contact .addr-label {
  display: block;
  margin-bottom: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--copper-soft);
}

.page-contact .addr-value {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--on-dark);
}

.page-contact .visit-qa {
  border-top: 1px solid rgba(233, 238, 246, 0.18);
  border-bottom: 1px solid rgba(233, 238, 246, 0.18);
}

.page-contact .visit-qa summary {
  padding: 0.9rem 0;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--on-dark);
  cursor: pointer;
  list-style: none;
}

.page-contact .visit-qa summary::-webkit-details-marker {
  display: none;
}

.page-contact .visit-qa summary::after {
  content: "＋";
  float: right;
  color: var(--copper);
  font-weight: 400;
  transition: transform 200ms var(--ease);
}

.page-contact .visit-qa[open] summary::after {
  content: "－";
}

.page-contact .visit-qa .qa-body {
  padding-bottom: 1rem;
}

.page-contact .visit-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.55rem;
}

.page-contact .visit-list li {
  position: relative;
  padding-left: 1rem;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--on-dark-dim);
}

.page-contact .visit-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.66em;
  width: 5px;
  height: 1px;
  background: var(--copper);
}

.page-contact .visit-list .mono {
  font-family: var(--font-mono);
  color: var(--on-dark);
  word-break: break-all;
}

.page-contact .body-note {
  margin: 1.5rem 0 0;
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--on-dark-dim);
}

.page-contact .shandong-visual {
  margin: 0;
}

.page-contact .shandong-visual img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: var(--contact-radius);
  border: 1px solid rgba(233, 238, 246, 0.2);
}

.page-contact .shandong-visual .figure-caption {
  margin-top: 0.7rem;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--on-dark-dim);
}

/* ---------- 时效 ---------- */
.page-contact .timing-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
  counter-reset: timing;
}

.page-contact .timing-item {
  display: grid;
  grid-template-columns: 3.25rem minmax(0, 1fr);
  gap: 1rem;
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .timing-item:first-child {
  border-top: 1px solid var(--line);
}

.page-contact .timing-mark {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--teal);
  padding-top: 0.3rem;
}

.page-contact .timing-title {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1rem;
  line-height: 1.35;
  color: var(--ink);
}

.page-contact .timing-body p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--muted);
  max-width: 62ch;
}

.page-contact .timing-note {
  margin: 1.5rem 0 0;
  padding: 0.9rem 1rem;
  background: var(--paper);
  border-left: 2px solid var(--teal);
  border-radius: 0 var(--contact-radius) var(--contact-radius) 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--ink);
}

.page-contact .contact-foot-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}

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

  .page-contact .quick-item:nth-child(3) {
    grid-column: 1 / -1;
    grid-template-columns: 5.5rem minmax(0, 1fr);
  }
}

@media (min-width: 900px) {
  .page-contact .section--hero {
    padding-top: 2.5rem;
    padding-bottom: 4.5rem;
  }

  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 3.5rem;
  }

  .page-contact .channel-layout {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: 2.5rem;
    align-items: start;
  }

  .page-contact .shandong-layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 3rem;
    align-items: center;
  }
}

@media (min-width: 1180px) {
  .page-contact .channel-layout {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

  .page-contact .quick-item {
    grid-template-columns: 6rem minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .segmented [role="tab"],
  .page-contact .visit-qa summary::after,
  .page-contact .crumbs a {
    transition: none;
  }
}