.page-contact {
  --c-gap: clamp(1rem, 2.6vw, 1.5rem);
  --c-pad: clamp(1.1rem, 3vw, 1.8rem);
  --c-line: var(--line-soft);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-contact .container {
  width: 100%;
  max-width: 1180px;
  margin-inline: auto;
  padding-inline: var(--pad-edge);
}

.page-contact img {
  max-width: 100%;
  height: auto;
  display: block;
}

.page-contact .media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-contact h1,
.page-contact h2,
.page-contact h3 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: 0.01em;
  line-height: 1.24;
  margin: 0;
}

.page-contact h2 {
  font-size: clamp(1.32rem, 3.4vw, 1.95rem);
}

.page-contact h3 {
  font-size: clamp(1rem, 2.2vw, 1.12rem);
  font-weight: 700;
}

.page-contact .eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--copper);
  margin: 0 0 0.55rem;
}

.page-contact .eyebrow--on-dark {
  color: var(--copper-light);
}

.page-contact .prose {
  max-width: 34em;
  line-height: 1.78;
  color: rgba(21, 25, 29, 0.82);
}

.page-contact .section-head {
  margin-bottom: clamp(1.4rem, 3.5vw, 2.2rem);
}

.page-contact .section-head--tight {
  margin-bottom: 1.2rem;
}

.page-contact .section-head .prose {
  margin-top: 0.75rem;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-mast {
  position: relative;
  background:
    repeating-linear-gradient(90deg, rgba(228, 206, 158, 0.06) 0 1px, transparent 1px 46px),
    radial-gradient(120% 100% at 88% 0%, rgba(183, 132, 59, 0.26), transparent 58%),
    linear-gradient(180deg, var(--ink-navy) 0%, var(--ink-navy-deep) 100%);
  color: var(--paper-white);
  padding: clamp(1.4rem, 4vw, 2.4rem) 0 clamp(2rem, 5vw, 3.4rem);
  border-bottom: 3px solid var(--copper);
}

.page-contact .crumbs {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: clamp(1.2rem, 3vw, 1.9rem);
}

.page-contact .crumbs--on-dark a {
  color: var(--copper-light);
  text-decoration: none;
}

.page-contact .crumbs--on-dark a:hover,
.page-contact .crumbs--on-dark a:focus-visible {
  text-decoration: underline;
}

.page-contact .crumbs--on-dark .crumb-sep {
  color: rgba(169, 183, 190, 0.65);
}

.page-contact .crumbs--on-dark .crumb-current {
  color: rgba(251, 247, 240, 0.72);
}

.page-contact .mast-layout {
  display: grid;
  gap: clamp(1.3rem, 3vw, 2rem);
}

.page-contact h1 {
  font-size: clamp(1.75rem, 5.6vw, 3.1rem);
  color: var(--paper-white);
  max-width: 20em;
}

.page-contact .lede {
  margin: 1rem 0 0;
  max-width: 32em;
  font-size: clamp(0.95rem, 1.7vw, 1.06rem);
  line-height: 1.85;
  color: rgba(251, 247, 240, 0.8);
}

.page-contact .mast-tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.35rem 0 0;
  padding: 0;
}

.page-contact .mast-tags .tag {
  font-size: 0.74rem;
  letter-spacing: 0.04em;
}

.page-contact .mast-plate {
  display: none;
}

@media (min-width: 900px) {
  .page-contact .mast-layout {
    grid-template-columns: minmax(0, 1fr) 15rem;
    align-items: end;
  }

  .page-contact .mast-plate {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 1.15rem 1.2rem;
    border: 1px solid var(--line-on-dark);
    border-radius: var(--radius);
    background: rgba(251, 247, 240, 0.04);
  }

  .page-contact .plate-label {
    font-size: 0.68rem;
    letter-spacing: 0.24em;
    color: var(--copper-light);
  }

  .page-contact .plate-version {
    font-size: 1.9rem;
    font-weight: 600;
    color: var(--paper-white);
    letter-spacing: 0.04em;
  }

  .page-contact .plate-rule {
    height: 1px;
    background: var(--line-on-dark);
    margin: 0.3rem 0;
  }

  .page-contact .plate-note {
    font-size: 0.74rem;
    color: rgba(251, 247, 240, 0.6);
  }
}

/* ---------- 渠道卡 ---------- */
.page-contact .contact-channels {
  background: var(--paper);
  padding: clamp(2.2rem, 6vw, 4rem) 0;
  border-bottom: 1px solid var(--c-line);
}

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

.page-contact .channel-card {
  position: relative;
  background: var(--paper-white);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-plate);
  padding: var(--c-pad);
  transition: box-shadow 220ms ease, transform 220ms ease;
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--copper), rgba(183, 132, 59, 0.15));
}

.page-contact .channel-card--primary::before {
  background: linear-gradient(90deg, var(--cinnabar), var(--copper));
}

@media (hover: hover) {
  .page-contact .channel-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 2px 0 rgba(21, 25, 29, 0.05), 0 24px 40px -30px rgba(14, 30, 45, 0.75);
  }
}

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

.page-contact .channel-head {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
  margin-bottom: 0.9rem;
}

.page-contact .channel-icon {
  flex: 0 0 auto;
  width: 2.4rem;
  height: 2.4rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--copper-light);
  border-radius: var(--radius);
  color: var(--copper);
  background: rgba(228, 206, 158, 0.18);
}

.page-contact .channel-icon svg {
  width: 1.25rem;
  height: 1.25rem;
}

.page-contact .channel-label {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.05rem;
  margin: 0;
  color: var(--ink);
}

.page-contact .channel-role {
  margin: 0.2rem 0 0;
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  color: rgba(21, 25, 29, 0.58);
}

.page-contact .channel-value {
  font-family: var(--font-mono);
  font-size: clamp(1.02rem, 3vw, 1.5rem);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--ink-navy);
  margin: 0 0 0.6rem;
  overflow-wrap: anywhere;
}

.page-contact .channel-value--address {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: clamp(0.98rem, 2.4vw, 1.12rem);
  line-height: 1.6;
}

.page-contact .channel-note {
  font-size: 0.86rem;
  line-height: 1.72;
  color: rgba(21, 25, 29, 0.7);
  margin: 0;
  max-width: 32em;
}

.page-contact .channel-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 1.1rem;
  align-items: center;
}

.page-contact .channel-figure {
  margin: 0;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 3 / 2;
}

@media (min-width: 860px) {
  .page-contact .channel-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }

  .page-contact .channel-card--primary {
    grid-column: 1 / -1;
  }

  .page-contact .channel-card--primary .channel-inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.8fr);
    align-items: center;
    gap: clamp(1.2rem, 3vw, 2rem);
  }

  .page-contact .channel-card--primary .channel-value {
    font-size: clamp(1.3rem, 2.4vw, 1.75rem);
  }
}

/* ---------- 回复时段 ---------- */
.page-contact .contact-hours {
  background: var(--ink-navy);
  color: var(--paper-white);
  padding: clamp(2.2rem, 6vw, 4rem) 0;
}

.page-contact .hours-board {
  display: grid;
  gap: clamp(1.5rem, 3.5vw, 2.6rem);
}

.page-contact .hours-clock {
  border-left: 2px solid var(--copper);
  padding-left: 1.1rem;
}

.page-contact .clock-value {
  font-family: var(--font-mono);
  font-size: clamp(2.1rem, 7vw, 3.2rem);
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.05;
  margin: 0;
  color: var(--paper-white);
}

.page-contact .clock-dash {
  color: var(--copper);
  padding: 0 0.15em;
}

.page-contact .clock-caption {
  margin: 0.55rem 0 0;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  color: rgba(228, 206, 158, 0.85);
}

.page-contact .hours-notes h2 {
  color: var(--paper-white);
  margin-bottom: 1rem;
}

.page-contact .hours-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.page-contact .hours-list li {
  display: grid;
  grid-template-columns: 2.1rem minmax(0, 1fr);
  gap: 0.7rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line-on-dark-soft);
}

.page-contact .hours-index {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--copper);
  padding-top: 0.2rem;
}

.page-contact .hours-list p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.82;
  color: rgba(251, 247, 240, 0.78);
}

.page-contact .hours-list a {
  color: var(--copper-light);
}

@media (min-width: 900px) {
  .page-contact .hours-board {
    grid-template-columns: minmax(0, 0.72fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .hours-clock {
    position: sticky;
    top: 2rem;
  }
}

/* ---------- 咨询准备 ---------- */
.page-contact .contact-prep {
  background: var(--paper-white);
  padding: clamp(2.2rem, 6vw, 4rem) 0;
  border-bottom: 1px solid var(--c-line);
}

.page-contact .prep-layout {
  display: grid;
  gap: clamp(1.5rem, 3.5vw, 2.4rem);
}

.page-contact .prep-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}

.page-contact .prep-item {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr);
  gap: 0.85rem;
  padding: 0.95rem 1rem;
  background: var(--paper);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
}

.page-contact .prep-index {
  display: grid;
  place-items: center;
  width: 1.7rem;
  height: 1.7rem;
  border-radius: 50%;
  border: 1px solid var(--copper);
  color: var(--copper);
  font-size: 0.72rem;
  font-weight: 600;
}

.page-contact .prep-item h3 {
  margin-bottom: 0.3rem;
}

.page-contact .prep-item p {
  margin: 0;
  font-size: 0.87rem;
  line-height: 1.72;
  color: rgba(21, 25, 29, 0.72);
}

.page-contact .prep-figure {
  margin: 0;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--paper);
}

.page-contact .prep-figure .media-caption {
  padding: 0.7rem 0.9rem;
  font-size: 0.76rem;
  line-height: 1.6;
  color: rgba(21, 25, 29, 0.6);
  border-top: 1px solid var(--c-line);
  background: var(--paper-white);
}

@media (min-width: 900px) {
  .page-contact .prep-layout {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    align-items: start;
  }

  .page-contact .prep-figure {
    position: sticky;
    top: 2rem;
  }
}

/* ---------- 场景分流 ---------- */
.page-contact .contact-scenes {
  background: var(--paper);
  padding: clamp(2.2rem, 6vw, 4rem) 0;
}

.page-contact .scene-nav {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0 0 clamp(1.2rem, 3vw, 1.8rem);
  padding: 0.65rem 0;
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
}

.page-contact .scene-chip {
  display: inline-flex;
  align-items: baseline;
  gap: 0.45rem;
  padding: 0.42rem 0.8rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--paper-white);
  color: var(--ink);
  text-decoration: none;
  font-size: 0.82rem;
  transition: border-color 180ms ease, background 180ms ease, color 180ms ease;
}

.page-contact .scene-chip .mono {
  font-size: 0.7rem;
  color: var(--copper);
}

.page-contact .scene-chip:hover,
.page-contact .scene-chip:focus-visible {
  border-color: var(--cinnabar);
  color: var(--cinnabar);
}

.page-contact .scene-grid {
  display: grid;
  gap: var(--c-gap);
}

.page-contact .scene-card {
  scroll-margin-top: 1.5rem;
  background: var(--paper-white);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--copper-light);
  border-radius: var(--radius);
  padding: var(--c-pad);
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.page-contact .scene-card .tag {
  align-self: flex-start;
  font-size: 0.72rem;
  letter-spacing: 0.05em;
}

.page-contact .scene-card p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.76;
  color: rgba(21, 25, 29, 0.74);
}

.page-contact .scene-mail {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.45rem;
  padding-top: 0.7rem;
  border-top: 1px dashed var(--line-strong);
}

.page-contact .scene-mail-label {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--copper);
}

.page-contact .scene-mail .mono {
  font-size: 0.8rem;
  color: var(--ink-navy);
  overflow-wrap: anywhere;
}

.page-contact .scene-link {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--cinnabar);
  text-decoration: none;
  padding-top: 0.2rem;
}

.page-contact .scene-link:hover,
.page-contact .scene-link:focus-visible {
  text-decoration: underline;
}

@media (min-width: 760px) {
  .page-contact .scene-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 合作共建 ---------- */
.page-contact .contact-partners {
  background: var(--paper-white);
  padding: clamp(2.2rem, 6vw, 4rem) 0;
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
}

.page-contact .partners-layout {
  display: grid;
  gap: clamp(1.5rem, 3.5vw, 2.4rem);
}

.page-contact .partners-intro .prose + .prose {
  margin-top: 0.8rem;
}

.page-contact .partner-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.8rem;
}

.page-contact .partner-item {
  position: relative;
  padding: 1rem 1.1rem 1.05rem;
  background: var(--paper);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
}

.page-contact .partner-index {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--copper);
  margin-bottom: 0.35rem;
}

.page-contact .partner-item h3 {
  margin-bottom: 0.35rem;
}

.page-contact .partner-item p {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.72;
  color: rgba(21, 25, 29, 0.72);
}

@media (min-width: 900px) {
  .page-contact .partners-layout {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1fr);
    align-items: start;
  }
}

/* ---------- 邮件主题 ---------- */
.page-contact .contact-subject {
  background: var(--paper);
  padding: clamp(2.2rem, 6vw, 4rem) 0 clamp(2.6rem, 7vw, 4.6rem);
}

.page-contact .subject-board {
  background: var(--paper-white);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-plate);
  padding: clamp(1.2rem, 4vw, 2.2rem);
}

.page-contact .subject-list {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
  border-top: 1px solid var(--c-line);
}

.page-contact .subject-row {
  display: grid;
  grid-template-columns: 1.9rem minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.7rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--c-line);
}

.page-contact .subject-code {
  font-size: 0.74rem;
  color: var(--copper);
}

.page-contact .subject-text {
  font-family: var(--font-mono);
  font-size: clamp(0.78rem, 2.4vw, 0.9rem);
  color: var(--ink-navy);
  overflow-wrap: anywhere;
  line-height: 1.5;
}

.page-contact .subject-foot {
  margin: 1rem 0 0;
  font-size: 0.85rem;
  line-height: 1.75;
  color: rgba(21, 25, 29, 0.7);
}

.page-contact .subject-foot a {
  color: var(--cinnabar);
  text-decoration: none;
  border-bottom: 1px solid rgba(178, 58, 42, 0.4);
  overflow-wrap: anywhere;
}

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

.page-contact a:focus-visible,
.page-contact button:focus-visible {
  outline: 2px solid var(--cinnabar);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .scene-chip {
    transition: none;
  }

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