.page-contact {
  --ct-gap: clamp(1.25rem, 3vw, 2.25rem);
  --ct-paper-line: rgba(6, 12, 24, 0.075);
  --ct-soft: rgba(169, 184, 206, 0.18);
  position: relative;
  padding-bottom: clamp(3rem, 8vw, 6rem);
}

.page-contact .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumbs {
  padding: calc(var(--header-h) + 1.5rem) var(--pad-x) 0;
  max-width: 1280px;
  margin: 0 auto;
}

.page-contact .crumbs-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding: 0;
  margin: 0;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-contact .crumbs-list li + li::before {
  content: "/";
  margin-right: 0.5rem;
  color: var(--line);
}

.page-contact .crumbs-list a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

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

.page-contact .crumbs-current {
  color: var(--text);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding: clamp(1.75rem, 4vw, 3rem) var(--pad-x) clamp(2rem, 5vw, 3.5rem);
  max-width: 1280px;
  margin: 0 auto;
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-hero .wrap {
  padding: 0;
  max-width: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ct-gap);
}

.page-contact .hero-lead .eyebrow {
  margin: 0 0 1rem;
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  color: var(--ember);
  font-family: var(--font-mono);
  text-transform: uppercase;
}

.page-contact .hero-lead .display {
  margin: 0 0 1.25rem;
  color: var(--text);
  line-height: 1.05;
}

.page-contact .hero-lead .lede {
  margin: 0;
  max-width: 46ch;
  color: var(--muted);
  font-size: clamp(0.98rem, 1.05vw, 1.08rem);
  line-height: 1.85;
}

.page-contact .hero-side {
  align-self: end;
  border-left: 2px solid var(--cyan);
  padding: 0.25rem 0 0.25rem 1.1rem;
}

.page-contact .hero-side-label {
  margin: 0 0 0.6rem;
  font-size: 0.7rem;
  letter-spacing: 0.28em;
  color: var(--muted);
}

.page-contact .hero-side-clock {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0 0 0.5rem;
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  color: var(--cyan);
}

.page-contact .hero-side-dash {
  display: block;
  width: clamp(1.5rem, 6vw, 3.5rem);
  height: 1px;
  background: var(--line);
}

.page-contact .hero-side-note {
  margin: 0;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--muted);
}

/* ---------- 通用区段 ---------- */
.page-contact .section {
  max-width: 1280px;
  margin: 0 auto;
  padding: clamp(2.5rem, 6vw, 4.5rem) var(--pad-x);
}

.page-contact .section + .section {
  border-top: 1px solid var(--line);
}

.page-contact .section-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem 1.25rem;
  align-items: start;
  margin-bottom: clamp(1.75rem, 4vw, 2.75rem);
}

.page-contact .sec-num {
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 700;
  line-height: 1;
  color: var(--ember);
}

.page-contact .section-head .h2 {
  margin: 0 0 0.5rem;
  color: var(--text);
  line-height: 1.15;
}

.page-contact .section-sub {
  margin: 0;
  max-width: 62ch;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.8;
}

/* ---------- 01 渠道 ---------- */
.page-contact .channel-rack {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ct-gap);
}

.page-contact .channel-card {
  padding: clamp(1.5rem, 3vw, 2.25rem);
  border: 1px solid var(--line);
  border-radius: 3px;
  transition: border-color 200ms var(--ease);
}

.page-contact .channel-card--mail {
  background-color: var(--paper);
  color: var(--ink-900);
  background-image: repeating-linear-gradient(to bottom, transparent 0 34px, var(--ct-paper-line) 34px 35px);
  background-position: 0 12px;
}

.page-contact .channel-card--mail:hover,
.page-contact .channel-card--mail:focus-within {
  border-color: var(--ember);
}

.page-contact .channel-card--phone {
  background-color: var(--ink-700);
  border-color: rgba(55, 231, 211, 0.22);
}

.page-contact .channel-card--phone:hover,
.page-contact .channel-card--phone:focus-within {
  border-color: var(--cyan);
}

.page-contact .channel-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.page-contact .channel-tag {
  display: inline-block;
  padding: 0.24rem 0.66rem;
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  font-family: var(--font-mono);
  border-radius: 2px;
  background: linear-gradient(100deg, var(--cyan-deep), var(--cyan));
  color: var(--ink-900);
}

.page-contact .channel-tag--gold {
  background: var(--gold);
  color: var(--ink-900);
}

.page-contact .channel-head .card-title {
  margin: 0;
  font-size: clamp(1.2rem, 2.4vw, 1.55rem);
  color: inherit;
}

.page-contact .channel-addr {
  margin: 0 0 0.35rem;
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2.6vw, 1.3rem);
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--ink-900);
  overflow-wrap: anywhere;
  user-select: all;
}

.page-contact .channel-addr--light {
  color: var(--cyan);
}

.page-contact .channel-hint {
  margin: 0 0 1.35rem;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: rgba(6, 12, 24, 0.55);
}

.page-contact .channel-hint--light {
  color: var(--muted);
}

.page-contact .channel-meta {
  margin: 0;
  display: grid;
  gap: 0.85rem;
  border-top: 1px solid var(--ct-soft);
  padding-top: 1.1rem;
}

.page-contact .channel-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.2rem;
}

.page-contact .channel-row dt {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: rgba(6, 12, 24, 0.6);
}

.page-contact .channel-row dd {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
}

.page-contact .channel-meta--light .channel-row dt {
  color: var(--cyan);
  opacity: 0.75;
}

.page-contact .channel-meta--light .channel-row dd {
  color: var(--text);
  opacity: 0.9;
}

.page-contact .channel-figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 3px;
  overflow: hidden;
  background-color: var(--ink-800);
}

.page-contact .channel-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 12 / 7;
}

.page-contact .channel-figure .media-cap {
  display: block;
  padding: 0.85rem 1rem;
  font-size: 0.75rem;
  line-height: 1.7;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

/* ---------- 02 写信写法 ---------- */
.page-contact .email-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ct-gap);
}

.page-contact .email-format {
  border: 1px solid var(--line);
  border-left: 3px solid var(--ember);
  padding: clamp(1.25rem, 3vw, 1.75rem);
  background-color: var(--ink-800);
  border-radius: 3px;
}

.page-contact .email-format-label {
  margin: 0 0 0.75rem;
  font-size: 0.7rem;
  letter-spacing: 0.26em;
  color: var(--muted);
}

.page-contact .email-format-line {
  margin: 0 0 0.9rem;
  font-size: clamp(0.95rem, 2.2vw, 1.08rem);
  line-height: 1.9;
  color: var(--cyan);
  overflow-wrap: anywhere;
}

.page-contact .email-format-example {
  margin: 0;
  padding-top: 0.9rem;
  border-top: 1px dashed var(--line);
  font-size: 0.85rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .email-fields {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background-color: var(--line);
  border: 1px solid var(--line);
  border-radius: 3px;
  overflow: hidden;
}

.page-contact .field-item {
  background-color: var(--ink-900);
  padding: clamp(1.1rem, 2.6vw, 1.5rem);
  transition: background-color 200ms var(--ease);
}

.page-contact .field-item:hover {
  background-color: var(--ink-800);
}

.page-contact .field-idx {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  color: var(--ember);
  margin-bottom: 0.5rem;
}

.page-contact .field-title {
  margin: 0 0 0.45rem;
  font-size: 1.02rem;
  color: var(--text);
}

.page-contact .field-item p {
  margin: 0;
  max-width: 58ch;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 03 电话预约 ---------- */
.page-contact .phone-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(1.25rem, 3vw, 1.75rem);
  counter-reset: none;
}

.page-contact .phone-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem 1.25rem;
  align-items: start;
  padding: 1.35rem clamp(1rem, 3vw, 1.6rem);
  border: 1px solid var(--line);
  border-radius: 3px;
  background-color: var(--ink-800);
  transition: border-color 200ms var(--ease);
}

.page-contact .phone-step:hover {
  border-color: var(--cyan);
}

.page-contact .step-idx {
  font-size: clamp(1.4rem, 4vw, 1.9rem);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
}

.page-contact .phone-step .h3 {
  margin: 0 0 0.45rem;
  font-size: 1.05rem;
  color: var(--text);
}

.page-contact .phone-step p {
  margin: 0;
  max-width: 60ch;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 04 寄送地址 ---------- */
.page-contact .post-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ct-gap);
  align-items: stretch;
}

.page-contact .post-figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 3px;
  overflow: hidden;
  background-color: var(--ink-800);
}

.page-contact .post-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 5 / 4;
}

.page-contact .post-paper {
  background-color: var(--paper);
  color: var(--ink-900);
  border: 1px solid rgba(6, 12, 24, 0.14);
  border-radius: 3px;
  padding: clamp(1.5rem, 3.5vw, 2.5rem);
  background-image: repeating-linear-gradient(to bottom, transparent 0 39px, var(--ct-paper-line) 39px 40px);
  background-position: 0 26px;
}

.page-contact .post-paper .eyebrow {
  margin: 0 0 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  color: var(--ember);
}

.page-contact .post-address {
  margin: 0 0 1.1rem;
  font-style: normal;
  font-size: clamp(1.02rem, 2.4vw, 1.22rem);
  font-weight: 700;
  line-height: 1.9;
  letter-spacing: 0.02em;
  color: var(--ink-900);
  user-select: all;
}

.page-contact .post-rule {
  height: 1px;
  background: rgba(6, 12, 24, 0.22);
  margin-bottom: 1.15rem;
}

.page-contact .post-note {
  margin: 0 0 0.9rem;
  max-width: 54ch;
  font-size: 0.88rem;
  line-height: 1.9;
  color: rgba(6, 12, 24, 0.82);
}

.page-contact .post-select-hint {
  margin: 1.25rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: rgba(6, 12, 24, 0.5);
}

/* ---------- 05 响应顺序 ---------- */
.page-contact .resp-band {
  border: 1px solid var(--line);
  border-radius: 3px;
  background-color: var(--ink-800);
  padding: clamp(1.25rem, 3vw, 1.8rem);
  margin-bottom: clamp(1.5rem, 3vw, 2.25rem);
}

.page-contact .resp-clock {
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 3vw, 1.5rem);
}

.page-contact .resp-clock-num {
  font-size: clamp(1.5rem, 5vw, 2.4rem);
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
}

.page-contact .resp-clock-rule {
  flex: 1;
  position: relative;
  display: block;
  height: 10px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .resp-clock-rule i {
  position: absolute;
  inset: 3px 0;
  display: block;
  background: linear-gradient(90deg, var(--cyan), var(--cyan-deep));
  border-radius: 1px;
}

.page-contact .resp-clock-cap {
  margin: 1rem 0 0;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .resp-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background-color: var(--line);
  border: 1px solid var(--line);
  border-radius: 3px;
  overflow: hidden;
}

.page-contact .resp-cell {
  background-color: var(--ink-900);
  padding: clamp(1.15rem, 3vw, 1.75rem);
  transition: background-color 200ms var(--ease);
}

.page-contact .resp-cell:hover {
  background-color: var(--ink-800);
}

.page-contact .resp-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.9rem;
  height: 1.9rem;
  border: 1px solid var(--line);
  border-radius: 2px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--cyan);
  margin-bottom: 0.85rem;
}

.page-contact .resp-cell .h3 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  color: var(--text);
}

.page-contact .resp-cell p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 06 常见联系问题 ---------- */
.page-contact .acc {
  border-top: 1px solid var(--line);
}

.page-contact .acc-item {
  border-bottom: 1px solid var(--line);
}

.page-contact .acc-trigger {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.9rem 1rem;
  align-items: center;
  width: 100%;
  padding: 1.15rem 0.25rem;
  background: none;
  border: 0;
  text-align: left;
  cursor: pointer;
  color: var(--text);
  font-family: inherit;
  font-size: 1rem;
  line-height: 1.6;
  transition: color 180ms var(--ease);
}

.page-contact .acc-trigger:hover,
.page-contact .acc-trigger:focus-visible {
  color: var(--cyan);
}

.page-contact .faq-idx {
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  color: var(--ember);
}

.page-contact .faq-q {
  min-width: 0;
}

.page-contact .faq-mark {
  position: relative;
  width: 14px;
  height: 14px;
  flex: none;
}

.page-contact .faq-mark::before,
.page-contact .faq-mark::after {
  content: "";
  position: absolute;
  inset: 50% 0 auto 0;
  height: 1px;
  background: currentColor;
}

.page-contact .faq-mark::after {
  transform: rotate(90deg);
  transition: transform 180ms var(--ease);
}

.page-contact .acc-trigger[aria-expanded="true"] .faq-mark::after {
  transform: rotate(0deg);
}

.page-contact .acc-panel {
  padding: 0 0.25rem 1.4rem;
}

.page-contact .acc-panel p {
  margin: 0;
  max-width: 64ch;
  font-size: 0.9rem;
  line-height: 1.9;
  color: var(--muted);
}

.page-contact .faq-more {
  margin: clamp(1.75rem, 4vw, 2.5rem) 0 1.1rem;
  max-width: 60ch;
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .faq-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 0;
}

/* ---------- 窄屏到宽屏 ---------- */
@media (max-width: 599px) {
  .page-contact .acc-trigger {
    grid-template-columns: auto 1fr;
    grid-template-areas:
      "idx q"
      ". mark";
  }
  .page-contact .faq-idx { grid-area: idx; }
  .page-contact .faq-q { grid-area: q; }
  .page-contact .faq-mark { grid-area: mark; justify-self: end; }
}

@media (min-width: 700px) {
  .page-contact .contact-hero .wrap {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 0.85fr);
    align-items: end;
    gap: clamp(2rem, 5vw, 4rem);
  }

  .page-contact .section-head {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 1.5rem 2rem;
  }

  .page-contact .channel-row {
    grid-template-columns: minmax(6.5rem, auto) minmax(0, 1fr);
    gap: 0 1.5rem;
    align-items: baseline;
  }

  .page-contact .email-layout {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    align-items: start;
  }

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

@media (min-width: 960px) {
  .page-contact .channel-rack {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: clamp(1.5rem, 3vw, 2.5rem);
  }

  .page-contact .channel-card--mail {
    grid-column: 1 / span 6;
    grid-row: 1;
  }

  .page-contact .channel-figure {
    grid-column: 8 / span 5;
    grid-row: 1;
    align-self: end;
  }

  .page-contact .channel-card--phone {
    grid-column: 4 / span 7;
    grid-row: 2;
    margin-top: clamp(1rem, 3vw, 2.5rem);
  }

  .page-contact .post-layout {
    grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
    gap: clamp(2rem, 4vw, 3.25rem);
  }

  .page-contact .post-figure img {
    aspect-ratio: 5 / 5;
  }

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

  .page-contact .email-format {
    position: sticky;
    top: calc(var(--header-h) + 2rem);
  }
}

@media (min-width: 1400px) {
  .page-contact .contact-hero,
  .page-contact .section,
  .page-contact .breadcrumbs {
    max-width: 1330px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}