.page-contact {
  --contact-radius: 2px;
  --contact-gap: clamp(18px, 3vw, 34px);
  background: var(--ivory);
  color: var(--body-text);
  overflow-x: clip;
}

.page-contact .breadcrumb {
  padding-top: clamp(18px, 4vw, 28px);
  margin-bottom: clamp(20px, 5vw, 40px);
}
.page-contact .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: var(--fs-5);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}
.page-contact .breadcrumb__item {
  color: rgba(227, 190, 126, 0.7);
}
.page-contact .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 8px;
  color: rgba(227, 190, 126, 0.4);
}
.page-contact .breadcrumb__link {
  color: var(--copper-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.page-contact .breadcrumb__link:hover,
.page-contact .breadcrumb__link:focus-visible {
  color: var(--ivory);
  border-bottom-color: var(--copper);
}
.page-contact .breadcrumb__item[aria-current="page"] {
  color: var(--paper);
}

/* ---------- 首屏：对角错位色块 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding-bottom: clamp(6px, 2vw, 20px);
}
.page-contact .contact-hero__ink {
  background:
    radial-gradient(130% 100% at 8% 0%, rgba(31, 90, 74, 0.92) 0%, rgba(18, 58, 50, 0.98) 46%, var(--ink-900) 100%);
  color: var(--ivory);
  padding-bottom: clamp(58px, 10vw, 116px);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 calc(100% - 34px));
}
.page-contact .contact-hero__grid {
  display: grid;
  gap: clamp(26px, 5vw, 48px);
  align-items: end;
}
.page-contact .eyebrow {
  color: var(--copper-soft);
}
.page-contact .contact-hero__title h1 {
  margin: 14px 0 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: var(--fs-1);
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--ivory);
  max-width: 20em;
}
.page-contact .contact-hero__title .lede {
  margin-top: 18px;
  max-width: 34em;
  color: rgba(246, 241, 228, 0.82);
  line-height: 1.9;
}
.page-contact .contact-hero__action {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 22px;
  margin: 26px 0 0;
}
.page-contact .contact-hero__action .link {
  color: var(--copper-soft);
}
.page-contact .contact-hero__action .link:hover,
.page-contact .contact-hero__action .link:focus-visible {
  color: var(--ivory);
}

.page-contact .contact-hero__figure {
  margin: 0;
  position: relative;
  border: 1px solid var(--line-copper);
  padding: 8px;
  background: rgba(11, 38, 32, 0.5);
}
.page-contact .contact-hero__figure img {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 2;
  height: auto;
  object-fit: cover;
  filter: saturate(0.92);
}
.page-contact .contact-hero__caption {
  display: block;
  margin-top: 10px;
  font-size: var(--fs-5);
  font-family: var(--font-mono);
  color: rgba(227, 190, 126, 0.72);
  letter-spacing: 0.03em;
}

/* 纸张块叠在墨绿切角上 */
.page-contact .contact-hero__paper {
  position: relative;
  z-index: 2;
  margin-top: clamp(-56px, -6vw, -34px);
}
.page-contact .letter-card {
  position: relative;
  background: var(--ivory);
  border: 1px solid var(--line-copper);
  box-shadow: var(--shadow-card);
  padding: clamp(24px, 4vw, 38px) clamp(20px, 4vw, 40px) clamp(22px, 3vw, 32px);
}
.page-contact .letter-card::after {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1px solid rgba(192, 138, 62, 0.22);
  pointer-events: none;
}
.page-contact .letter-card__stamp {
  display: inline-block;
  margin: 0 0 14px;
  padding: 4px 12px 4px 11px;
  background: var(--ink-800);
  color: var(--copper-soft);
  font-family: var(--font-mono);
  font-size: var(--fs-5);
  letter-spacing: 0.18em;
  clip-path: polygon(0 0, 100% 0, calc(100% - 10px) 100%, 0 100%);
}
.page-contact .letter-card__title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: var(--fs-3);
  color: var(--ink-800);
}
.page-contact .letter-card__hint {
  margin: 10px 0 20px;
  font-size: var(--fs-4);
  line-height: 1.85;
}
.page-contact .letter-card__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  counter-reset: letter;
}
.page-contact .letter-card__list li {
  counter-increment: letter;
  position: relative;
  padding: 13px 0 13px 42px;
  border-top: 1px dashed var(--line-copper-soft);
  font-size: var(--fs-4);
  line-height: 1.8;
}
.page-contact .letter-card__list li::before {
  content: "0" counter(letter);
  position: absolute;
  left: 0;
  top: 15px;
  font-family: var(--font-mono);
  font-size: var(--fs-5);
  color: var(--copper);
}
.page-contact .letter-card__key {
  display: inline-block;
  margin-right: 8px;
  font-weight: 700;
  color: var(--ink-800);
}

/* ---------- 章节头 ---------- */
.page-contact .contact-head {
  margin-bottom: var(--contact-gap);
  border-bottom: 1px solid var(--line-paper);
  padding-bottom: 18px;
}
.page-contact .contact-head__index {
  margin: 0 0 8px;
  font-size: var(--fs-5);
  letter-spacing: 0.24em;
  color: var(--copper);
}
.page-contact .contact-head h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: var(--fs-2);
  line-height: 1.35;
  color: var(--ink-800);
}
.page-contact .contact-head__lede {
  margin: 12px 0 0;
  max-width: 46em;
  font-size: var(--fs-4);
  line-height: 1.9;
}
.page-contact .lede {
  font-size: var(--fs-4);
  line-height: 1.9;
  color: var(--body-text);
}

/* ---------- 三张场景卡 ---------- */
.page-contact .scene-grid {
  display: grid;
  gap: var(--contact-gap);
  align-items: stretch;
}
.page-contact .scene-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 44px 22px 22px;
  background: var(--paper);
  border: 1px solid var(--line-copper);
  box-shadow: var(--shadow-card);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.page-contact .scene-card:hover,
.page-contact .scene-card:focus-within {
  transform: translateY(-2px);
  border-color: var(--copper);
  box-shadow: var(--shadow-float);
}
.page-contact .scene-card__tab {
  position: absolute;
  top: 0;
  padding: 6px 15px 6px 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-5);
  letter-spacing: 0.16em;
  background: var(--ink-800);
  color: var(--copper-soft);
}
.page-contact .scene-card__tab--a {
  left: 0;
  clip-path: polygon(0 0, 100% 0, calc(100% - 12px) 100%, 0 100%);
}
.page-contact .scene-card__tab--b {
  left: 0;
  background: var(--ink-600);
  clip-path: polygon(12px 0, 100% 0, 100% 100%, 0 100%);
  padding-left: 18px;
}
.page-contact .scene-card__tab--c {
  left: 0;
  background: var(--copper);
  color: var(--ink-900);
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 100%, 0 100%);
}
.page-contact .scene-card__num {
  margin: 0;
  font-size: var(--fs-5);
  letter-spacing: 0.18em;
  color: var(--silver);
}
.page-contact .scene-card__title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: var(--fs-3);
  line-height: 1.4;
  color: var(--ink-800);
}
.page-contact .scene-card__text {
  margin: 0;
  font-size: var(--fs-4);
  line-height: 1.85;
}
.page-contact .scene-card__list {
  list-style: none;
  margin: 6px 0 0;
  padding: 0;
  font-size: var(--fs-5);
  color: var(--graphite);
}
.page-contact .scene-card__list li {
  position: relative;
  padding: 7px 0 7px 18px;
  border-top: 1px solid var(--line-paper);
  line-height: 1.7;
}
.page-contact .scene-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  width: 8px;
  height: 1px;
  background: var(--copper);
}
.page-contact .scene-card__link {
  margin-top: auto;
  align-self: flex-start;
  padding-top: 8px;
}

/* ---------- 共建带 ---------- */
.page-contact .build-band {
  background: linear-gradient(180deg, rgba(237, 228, 210, 0.5) 0%, rgba(246, 241, 228, 0) 100%);
  border-top: 1px solid var(--line-paper);
  border-bottom: 1px solid var(--line-paper);
}
.page-contact .build-band__grid {
  display: grid;
  gap: var(--contact-gap);
}
.page-contact .build-band__main h2 {
  margin: 8px 0 14px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: var(--fs-2);
  line-height: 1.35;
  color: var(--ink-800);
}
.page-contact .spec-list {
  margin: 26px 0 0;
  border-top: 1px solid var(--line-copper);
}
.page-contact .spec-list__row {
  display: grid;
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px dashed var(--line-copper-soft);
}
.page-contact .spec-list__row dt {
  font-family: var(--font-mono);
  font-size: var(--fs-5);
  letter-spacing: 0.14em;
  color: var(--copper);
}
.page-contact .spec-list__row dd {
  margin: 0;
  font-size: var(--fs-4);
  line-height: 1.85;
}
.page-contact .build-band__more {
  margin: 22px 0 0;
  font-size: var(--fs-4);
  line-height: 1.9;
}
.page-contact .build-band__aside {
  background: var(--ink-800);
  color: rgba(246, 241, 228, 0.86);
  padding: 26px 22px;
  border-left: 3px solid var(--copper);
}
.page-contact .build-band__aside-title {
  margin: 0 0 12px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: var(--fs-3);
  color: var(--ivory);
}
.page-contact .build-band__aside p {
  margin: 0 0 14px;
  font-size: var(--fs-4);
  line-height: 1.9;
}
.page-contact .build-band__aside .build-band__aside-note {
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid rgba(227, 190, 126, 0.3);
  font-size: var(--fs-5);
  letter-spacing: 0.06em;
  color: var(--copper-soft);
}

/* ---------- 线索 ---------- */
.page-contact .leads-grid {
  display: grid;
  gap: var(--contact-gap);
}
.page-contact .leads-grid__text h2 {
  margin: 8px 0 14px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: var(--fs-2);
  line-height: 1.35;
  color: var(--ink-800);
}
.page-contact .leads-grid__steps {
  margin: 26px 0 0;
  display: grid;
  gap: 0;
}
.page-contact .step {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 12px;
  align-items: start;
  padding: 15px 0;
  border-top: 1px solid var(--line-paper);
}
.page-contact .step__num {
  margin: 4px 0 0;
  font-size: var(--fs-5);
  letter-spacing: 0.16em;
  color: var(--copper);
}
.page-contact .step__text {
  margin: 0;
  font-size: var(--fs-4);
  line-height: 1.85;
}
.page-contact .leads-grid__more {
  margin: 22px 0 0;
  font-size: var(--fs-4);
  line-height: 1.9;
}
.page-contact .leads-grid__figure {
  margin: 0;
  padding: 22px 18px 16px;
  background: var(--paper);
  border: 1px solid var(--line-copper);
  box-shadow: var(--shadow-card);
}
.page-contact .envelope {
  display: block;
  width: 100%;
  height: auto;
}
.page-contact .leads-grid__caption {
  margin-top: 12px;
  text-align: center;
  font-size: var(--fs-5);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  color: var(--silver);
}

/* ---------- 找回 ---------- */
.page-contact .recall-band {
  background: var(--paper);
  border-top: 1px solid var(--line-copper-soft);
  border-bottom: 1px solid var(--line-copper-soft);
}
.page-contact .key-grid {
  display: grid;
  gap: var(--contact-gap);
}
.page-contact .key-card {
  background: var(--ivory);
  border: 1px solid var(--line-copper-soft);
  padding: 22px 20px;
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.page-contact .key-card:hover {
  border-color: var(--copper);
  transform: translateY(-2px);
}
.page-contact .key-card__label {
  margin: 0 0 10px;
  font-size: var(--fs-5);
  letter-spacing: 0.2em;
  color: var(--copper);
}
.page-contact .key-card__title {
  margin: 0 0 10px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: var(--fs-3);
  color: var(--ink-800);
}
.page-contact .key-card p {
  margin: 0;
  font-size: var(--fs-4);
  line-height: 1.85;
}
.page-contact .key-card--extra {
  border-style: dashed;
  border-color: var(--copper);
}
.page-contact .recall-band__more {
  margin: 26px 0 0;
  font-size: var(--fs-4);
  line-height: 1.9;
}

/* ---------- 联系渠道 · 名片块 ---------- */
.page-contact .channels-grid {
  display: grid;
  gap: var(--contact-gap);
}
.page-contact .channels-grid__main h2 {
  margin: 8px 0 14px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: var(--fs-2);
  line-height: 1.35;
  color: var(--ink-800);
}
.page-contact .nameplate {
  margin: 26px 0 0;
  background: var(--paper);
  border: 1px solid var(--line-copper);
  box-shadow: var(--shadow-card);
}
.page-contact .nameplate__row {
  padding: 20px 22px;
  border-bottom: 1px dashed var(--line-copper-soft);
}
.page-contact .nameplate__row:last-child {
  border-bottom: 0;
}
.page-contact .nameplate__label {
  margin: 0 0 6px;
  font-size: var(--fs-5);
  letter-spacing: 0.2em;
  color: var(--copper);
}
.page-contact .nameplate__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(17px, 2.4vw, 21px);
  letter-spacing: 0.05em;
  color: var(--ink-800);
  word-break: break-word;
}
.page-contact .nameplate__note {
  margin: 10px 0 0;
  font-size: var(--fs-5);
  line-height: 1.85;
  color: var(--body-text);
}
.page-contact .channels-grid__aside {
  display: grid;
  gap: var(--contact-gap);
  align-content: start;
}
.page-contact .channels-grid__figure {
  margin: 0;
  border: 1px solid var(--line-copper);
  padding: 8px;
  background: var(--ivory);
}
.page-contact .channels-grid__figure img {
  display: block;
  width: 100%;
  aspect-ratio: 9 / 7;
  height: auto;
  object-fit: cover;
}
.page-contact .handnote {
  background: var(--ivory);
  border: 1px solid var(--line-copper-soft);
  border-left: 3px solid var(--copper);
  padding: 20px 20px 18px;
}
.page-contact .handnote__title {
  margin: 0 0 12px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: var(--fs-3);
  color: var(--ink-800);
}
.page-contact .handnote__list {
  margin: 0;
  padding-left: 20px;
  font-size: var(--fs-4);
  line-height: 1.9;
}
.page-contact .handnote__list li + li {
  margin-top: 8px;
}

/* ---------- 站点信息带 ---------- */
.page-contact .site-strip {
  background: var(--ink-900);
  color: rgba(246, 241, 228, 0.86);
  padding: clamp(30px, 5vw, 46px) 0 clamp(30px, 5vw, 44px);
}
.page-contact .site-strip__title {
  margin: 0 0 20px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: var(--fs-3);
  color: var(--ivory);
}
.page-contact .site-strip__grid {
  margin: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid rgba(227, 190, 126, 0.3);
}
.page-contact .site-strip__cell {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 12px;
  align-items: baseline;
  padding: 13px 0;
  border-bottom: 1px solid rgba(227, 190, 126, 0.16);
}
.page-contact .site-strip__cell dt {
  font-size: var(--fs-5);
  color: var(--silver);
  letter-spacing: 0.1em;
}
.page-contact .site-strip__cell dd {
  margin: 0;
  font-size: var(--fs-5);
  letter-spacing: 0.06em;
  color: var(--copper-soft);
  word-break: break-word;
}
.page-contact .site-strip__warn {
  margin: 22px 0 0;
  font-size: var(--fs-5);
  color: rgba(168, 50, 42, 0.95);
  letter-spacing: 0.04em;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .scene-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-contact .key-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 980px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: center;
  }
  .page-contact .contact-hero__paper .wrap {
    display: flex;
    justify-content: flex-end;
  }
  .page-contact .letter-card {
    width: min(100%, 640px);
    transform: rotate(-0.5deg);
  }
  .page-contact .build-band__grid {
    grid-template-columns: minmax(0, 1fr) 300px;
    align-items: start;
  }
  .page-contact .leads-grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.76fr);
    align-items: start;
  }
  .page-contact .leads-grid__figure {
    position: sticky;
    top: 120px;
  }
  .page-contact .channels-grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    align-items: start;
  }
  .page-contact .spec-list__row {
    grid-template-columns: 120px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }
  .page-contact .site-strip__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 48px;
  }
}

@media (min-width: 1180px) {
  .page-contact .site-strip__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .scene-card,
  .page-contact .key-card,
  .page-contact .breadcrumb__link {
    transition: none;
  }
  .page-contact .scene-card:hover,
  .page-contact .scene-card:focus-within,
  .page-contact .key-card:hover {
    transform: none;
  }
  .page-contact .letter-card {
    transform: none;
  }
}
</main>