.page-contact {
  --ct-border: 3px solid var(--color-ink);
  --ct-line: 2px solid var(--color-gray-300);
}

/* 面包屑 */
.page-contact .breadcrumb {
  padding: 1.5rem 0 0;
  font-family: var(--font-index);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
}
.page-contact .breadcrumb a {
  color: var(--color-gray-500);
  text-decoration: none;
  transition: color var(--trans-fast);
}
.page-contact .breadcrumb a:hover {
  color: var(--color-accent-dark);
}
.page-contact .breadcrumb__sep {
  margin: 0 0.75rem;
  color: var(--color-gray-300);
}
.page-contact .breadcrumb [aria-current="page"] {
  color: var(--color-text);
  font-weight: 600;
}

/* 页面标题区 */
.page-contact__hero {
  padding: clamp(2rem, 5vw, 4.5rem) 0 2.5rem;
  border-bottom: 4px solid var(--color-ink);
  margin-bottom: 1rem;
}
.page-contact__hero-grid {
  display: grid;
  gap: 1.5rem;
  align-items: end;
}
.page-contact__hero-index {
  display: inline-block;
  font-family: var(--font-index);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-gray-500);
  border: 2px solid var(--color-gray-300);
  padding: 0.35rem 0.75rem;
  margin-bottom: 1.5rem;
}
.page-contact__hero-title {
  font-family: var(--font-headline);
  font-size: clamp(3rem, 9vw, 7.5rem);
  font-weight: 700;
  line-height: 0.9;
  margin: 0;
  letter-spacing: -0.02em;
  text-transform: uppercase;
}
.page-contact__hero-title::after {
  content: "";
  display: inline-block;
  width: 0.28em;
  height: 0.28em;
  background: var(--color-accent);
  margin-left: 0.1em;
  vertical-align: middle;
}
.page-contact__hero-text {
  margin-top: 0;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-gray-700);
  max-width: 40ch;
  border-left: 3px solid var(--color-accent);
  padding-left: 1.25rem;
}

/* 章节头 */
.page-contact .section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.25rem 1rem;
  border-bottom: var(--ct-border);
  padding-bottom: 0.75rem;
  margin-bottom: 2rem;
}
.page-contact .section-no {
  font-family: var(--font-headline);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1;
  color: var(--color-accent);
}
.page-contact .section-title {
  font-family: var(--font-headline);
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 700;
  line-height: 1.1;
  margin: 0;
}
.page-contact .section-meta {
  margin-left: auto;
  font-family: var(--font-index);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-gray-500);
  white-space: normal;
  letter-spacing: 0.06em;
}

/* ===== 01 客服渠道 ===== */
.page-contact__channel {
  background: var(--color-ink-soft);
  color: var(--color-paper);
  border-top: 4px solid var(--color-ink);
  border-bottom: 4px solid var(--color-ink);
  padding: clamp(2.5rem, 6vw, 5rem) 0;
  margin: 3rem 0;
}
.page-contact__channel .section-head {
  border-bottom-color: rgba(255, 255, 255, 0.25);
}
.page-contact__channel .section-title {
  color: var(--color-paper);
}
.page-contact__channel .section-meta {
  color: rgba(255, 255, 255, 0.5);
}
.page-contact__channel .section-no {
  color: var(--color-accent);
}
.page-contact__channel-grid {
  display: grid;
  gap: 2rem;
}
.page-contact__channel-visual .media-frame {
  border: 4px solid rgba(255, 255, 255, 0.4);
  box-shadow: 12px 12px 0 rgba(0, 0, 0, 0.3);
  transform: rotate(-2deg);
  background: var(--color-accent-soft);
}
.page-contact__channel-list {
  display: flex;
  flex-direction: column;
}
.page-contact__contact-row {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}
.page-contact__contact-row:first-child {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
}
.page-contact__row-index {
  font-family: var(--font-headline);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
  color: var(--color-flare);
  border: 2px solid var(--color-flare);
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: rotate(-8deg);
}
.page-contact__row-body {
  display: block;
}
.page-contact__row-label {
  display: block;
  font-family: var(--font-index);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 0.5rem;
}
.page-contact__row-value--email,
.page-contact__row-value--phone {
  display: block;
  font-family: var(--font-headline);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.01em;
}
.page-contact__row-value--email {
  font-size: clamp(1.5rem, 3.5vw, 2.6rem);
  color: var(--color-accent);
  overflow-wrap: anywhere;
}
.page-contact__row-value--phone {
  font-size: clamp(2rem, 5vw, 3.5rem);
  color: var(--color-paper);
}
.page-contact__row-note {
  margin: 0.5rem 0 0;
  font-size: 0.85rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.6);
  max-width: 38ch;
}

/* ===== 02 工作时间 ===== */
.page-contact__hours {
  padding: clamp(2.5rem, 6vw, 5rem) 0;
  background: var(--color-paper);
}
.page-contact__hours-grid {
  display: grid;
  gap: 2rem;
}
.page-contact__hours-table {
  border-top: 3px solid var(--color-ink);
}
.page-contact__hours-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  border-bottom: var(--ct-line);
  padding: 0.9rem 0;
  transition: background var(--trans-fast), padding-left var(--trans-fast);
}
.page-contact__hours-row:hover {
  background: var(--color-gray-100);
  padding-left: 0.5rem;
}
.page-contact__hours-day {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-text);
}
.page-contact__hours-day::before {
  content: "";
  display: inline-block;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--color-accent);
  margin-right: 0.5rem;
  vertical-align: middle;
}
.page-contact__hours-time {
  font-family: var(--font-index);
  font-weight: 500;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  color: var(--color-gray-700);
  background: var(--color-gray-100);
  border: 1px solid var(--color-gray-300);
  padding: 0.25rem 0.75rem;
}
.page-contact__hours-callout {
  border: var(--ct-border);
  box-shadow: var(--shadow-soft);
  padding: 1.5rem;
  background: var(--color-accent-soft);
}
.page-contact__hours-badge {
  display: inline-block;
  background: var(--color-flare);
  color: var(--color-paper);
  font-family: var(--font-index);
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.25rem 0.6rem;
  margin-bottom: 1rem;
}
.page-contact__hours-callout h3 {
  font-family: var(--font-headline);
  font-size: 1.35rem;
  font-weight: 700;
  margin: 0 0 0.75rem;
  color: var(--color-text);
}
.page-contact__hours-callout p {
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--color-gray-700);
  margin: 0 0 0.75rem;
}
.page-contact__hours-callout p:last-child {
  margin-bottom: 0;
}

/* ===== 03 联系地址 ===== */
.page-contact__address {
  background: var(--color-ink);
  color: var(--color-paper);
  padding: clamp(2.5rem, 6vw, 5rem) 0;
  border-top: 4px solid var(--color-accent);
  border-bottom: 4px solid var(--color-accent);
}
.page-contact__address .section-head {
  border-bottom-color: rgba(255, 255, 255, 0.25);
}
.page-contact__address .section-title {
  color: var(--color-paper);
}
.page-contact__address .section-meta {
  color: rgba(255, 255, 255, 0.5);
}
.page-contact__address .section-no {
  color: var(--color-accent);
}
.page-contact__address-grid {
  display: grid;
  gap: 2.5rem;
}
.page-contact__address-label {
  display: inline-block;
  font-family: var(--font-index);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  border: 2px solid var(--color-accent);
  padding: 0.35rem 0.75rem;
  margin-bottom: 1.5rem;
}
.page-contact__address-line {
  font-family: var(--font-headline);
  font-size: clamp(2rem, 6vw, 4.25rem);
  font-weight: 700;
  line-height: 1.1;
  margin: 0;
  letter-spacing: -0.01em;
}
.page-contact__address-border {
  height: 4px;
  width: 100%;
  max-width: 420px;
  background: var(--color-flare);
  margin: 1.75rem 0;
}
.page-contact__address-note {
  font-size: 0.9rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.65);
  max-width: 36ch;
  margin: 0;
}
.page-contact__address-visual .media-frame {
  border: 4px solid var(--color-accent);
  box-shadow: 12px 12px 0 rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.05);
}

/* ===== 04 更多帮助 ===== */
.page-contact__assist {
  padding: clamp(2.5rem, 6vw, 5rem) 0;
  background: var(--color-paper);
}
.page-contact__assist-grid {
  display: grid;
  gap: 1.5rem;
}
.page-contact__assist-card {
  display: flex;
  flex-direction: column;
  border: var(--ct-border);
  box-shadow: 6px 6px 0 var(--color-ink);
  padding: 1.75rem;
  background: var(--color-paper);
  text-decoration: none;
  color: var(--color-text);
  transition: transform var(--trans-fast), box-shadow var(--trans-fast);
}
.page-contact__assist-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 9px 9px 0 var(--color-ink);
}
.page-contact__assist-card--dark {
  background: var(--color-ink);
  color: var(--color-paper);
  border-color: var(--color-ink);
}
.page-contact__assist-card--dark .page-contact__assist-no {
  color: var(--color-accent);
}
.page-contact__assist-card--dark p {
  color: rgba(255, 255, 255, 0.7);
}
.page-contact__assist-no {
  font-family: var(--font-headline);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  color: var(--color-flare);
  margin-bottom: 1rem;
}
.page-contact__assist-title {
  font-family: var(--font-headline);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.1;
  margin: 0 0 0.75rem;
}
.page-contact__assist-card p {
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--color-gray-700);
  margin: 0 0 1.25rem;
  flex-grow: 1;
}
.page-contact__assist-link {
  font-family: var(--font-index);
  font-weight: 600;
  font-size: 0.85rem;
  text-decoration: none;
  border-bottom: 2px solid var(--color-accent);
  padding-bottom: 2px;
  align-self: flex-start;
}

/* ===== 桌面端 ===== */
@media (min-width: 900px) {
  .page-contact__hero-grid {
    grid-template-columns: 5fr 4fr;
    gap: 3rem;
    align-items: end;
  }
  .page-contact__hero-text {
    margin-bottom: 0.5rem;
  }
  .page-contact__channel-grid {
    grid-template-columns: 4fr 7fr;
    gap: 3rem;
    align-items: center;
  }
  .page-contact__contact-row {
    padding: 2rem 0;
  }
  .page-contact__hours-grid {
    grid-template-columns: 6fr 5fr;
    gap: 3rem;
    align-items: start;
  }
  .page-contact__address-grid {
    grid-template-columns: 6fr 5fr;
    gap: 3rem;
    align-items: center;
  }
  .page-contact__assist-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }
}