.page-contact {
  background: var(--sand);
  color: var(--ink);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: calc(var(--bar-h) + var(--head-h) + clamp(22px, 5vw, 52px)) 0 clamp(46px, 7vw, 86px);
  background:
    radial-gradient(90% 70% at 90% 2%, rgba(194, 112, 79, .22), rgba(194, 112, 79, 0) 62%),
    radial-gradient(70% 60% at 0% 100%, rgba(47, 93, 80, .14), rgba(47, 93, 80, 0) 60%),
    var(--sand);
  border-bottom: 1px solid var(--line);
}

.page-contact .hero-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 5vw, 52px);
  align-items: start;
}

.page-contact .hero-copy .breadcrumbs {
  margin-bottom: 18px;
}

.page-contact .hero-copy h1 {
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(30px, 5.4vw, 54px);
  line-height: 1.16;
  letter-spacing: .01em;
  margin: 10px 0 0;
  color: var(--ink);
}

.page-contact .hero-copy .lede {
  margin-top: 16px;
  max-width: 46ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
  color: var(--stone);
}

.page-contact .contact-stack {
  display: grid;
  gap: 14px;
  margin-top: clamp(24px, 3.4vw, 36px);
}

.page-contact .contact-card {
  display: grid;
  gap: 7px;
  position: relative;
  padding: 16px 18px 18px;
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-left: 4px solid var(--clay);
  border-radius: var(--radius);
  box-shadow: 5px 5px 0 rgba(47, 93, 80, .10);
  transition: transform .22s var(--ease), box-shadow .22s var(--ease);
}

.page-contact .contact-card:nth-child(2) { border-left-color: var(--bronze); }
.page-contact .contact-card:nth-child(3) { border-left-color: var(--gold); }

.page-contact .contact-card:hover,
.page-contact .contact-card:focus-within {
  transform: translateY(-4px);
  box-shadow: 7px 12px 0 rgba(47, 93, 80, .14);
}

.page-contact .contact-label {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--stone);
}

.page-contact .contact-value {
  margin: 0;
  width: fit-content;
  max-width: 100%;
  font-family: var(--mono);
  font-weight: 600;
  font-size: clamp(16px, 2.2vw, 21px);
  line-height: 1.5;
  color: var(--clay-deep);
  word-break: break-word;
  padding-bottom: 4px;
  background: linear-gradient(var(--gold), var(--gold)) 0 100% / 100% 2px no-repeat;
}

.page-contact .contact-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--stone);
}

.page-contact .copy-btn {
  justify-self: start;
  margin-top: 2px;
  padding: 7px 14px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--bronze);
  background: transparent;
  border: 1px solid var(--bronze);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}

.page-contact .copy-btn:hover,
.page-contact .copy-btn:focus-visible {
  background: var(--bronze);
  color: var(--paper);
  outline: none;
}

.page-contact .copy-btn[data-copied] {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--clay-dark);
}

.page-contact .hero-visual {
  position: relative;
  margin: 0 0 18px;
}

.page-contact .hero-visual img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line-strong);
  background: var(--paper);
  box-shadow: 10px 10px 0 rgba(158, 59, 42, .14);
}

.page-contact .visual-seal {
  position: absolute;
  right: 10px;
  bottom: -14px;
  padding: 9px 14px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--paper);
  background: var(--clay);
  border: 1px solid var(--clay-dark);
  transform: rotate(-2deg);
}

/* ---------- 通用区块 ---------- */
.page-contact .section {
  padding: clamp(46px, 7vw, 86px) 0;
}

.page-contact .section-title {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(23px, 3.4vw, 34px);
  line-height: 1.28;
  letter-spacing: .005em;
  color: var(--ink);
  margin: 8px 0 0;
}

.page-contact .section-head .lede {
  margin-top: 12px;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--stone);
}

.page-contact .eyebrow--light { color: var(--gold); }

/* ---------- 三种通道 ---------- */
.page-contact .channel-list {
  list-style: none;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
}

.page-contact .channel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  padding: clamp(20px, 3vw, 30px) 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .channel .index-number {
  justify-self: start;
  padding: 4px 10px;
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(26px, 3.6vw, 42px);
  line-height: 1;
  color: var(--clay);
  background: rgba(158, 59, 42, .09);
  border-radius: var(--radius);
}

.page-contact .channel-title {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(18px, 2.2vw, 22px);
  line-height: 1.4;
  color: var(--clay-deep);
}

.page-contact .channel-main p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--stone);
}

.page-contact .channel-tip {
  margin: 0;
  padding-left: 12px;
  border-left: 2px solid var(--gold);
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--bronze);
}

/* ---------- 通话准备 ---------- */
.page-contact .prep-section {
  background: linear-gradient(180deg, rgba(251, 246, 236, .72), rgba(251, 246, 236, 0));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .prep-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 34px);
}

.page-contact .prep {
  padding: 14px 16px 16px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 3px 3px 0 rgba(47, 93, 80, .07);
}

.page-contact .prep summary {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  list-style: none;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 16px;
  color: var(--ink);
}

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

.page-contact .prep summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--mono);
  font-size: 18px;
  color: var(--clay);
}

.page-contact .prep[open] summary::after { content: "–"; }

.page-contact .prep-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  flex: 0 0 22px;
  border-radius: 50%;
  background: var(--bronze);
  color: var(--paper);
  font-family: var(--mono);
  font-size: 11px;
}

.page-contact .prep p {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--stone);
}

/* ---------- 邮件写法 ---------- */
.page-contact .mail-section {
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.page-contact .mail-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

.page-contact .mail-copy .prose {
  margin-top: 12px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--stone);
}

.page-contact .mail-rules {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .mail-rules li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--stone);
}

.page-contact .mail-rules li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 8px;
  height: 2px;
  background: var(--gold);
}

.page-contact .mail-rules strong {
  color: var(--clay-deep);
  font-weight: 600;
}

.page-contact .mail-contact {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 12px;
  margin: 22px 0 0;
  padding-top: 16px;
  border-top: 1px dashed var(--line-strong);
  font-size: 13px;
  color: var(--stone);
}

.page-contact .mail-addr {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--clay-deep);
  word-break: break-word;
}

.page-contact .letter {
  padding: clamp(20px, 3vw, 28px);
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-top: 3px solid var(--clay);
  box-shadow: 8px 8px 0 rgba(158, 59, 42, .10), 16px 16px 0 rgba(47, 93, 80, .07);
}

.page-contact .letter-label {
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--clay);
}

.page-contact .letter-line {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 10px;
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.8;
  color: var(--stone);
}

.page-contact .letter-line span {
  color: var(--bronze);
  letter-spacing: .06em;
}

.page-contact .letter-foot {
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--stone);
}

/* ---------- 地址 ---------- */
.page-contact .address-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 46px);
  align-items: center;
}

.page-contact .address-media {
  margin: 0;
}

.page-contact .address-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line-strong);
  background: var(--paper);
}

.page-contact .address-media .media-caption {
  margin-top: 10px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .04em;
  line-height: 1.7;
  color: var(--stone);
}

.page-contact .address-block {
  margin: 18px 0 0;
  padding: 18px 20px;
  font-family: var(--mono);
  font-weight: 600;
  font-size: clamp(16px, 2.3vw, 21px);
  line-height: 1.7;
  color: var(--clay-deep);
  background: rgba(47, 93, 80, .09);
  border-left: 4px solid var(--bronze);
  word-break: break-word;
}

.page-contact .address-copy .prose {
  margin-top: 14px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--stone);
}

/* ---------- 合作 ---------- */
.page-contact .coop {
  position: relative;
  padding: clamp(40px, 6vw, 76px) 0;
  color: var(--paper);
  background:
    repeating-linear-gradient(135deg, rgba(201, 162, 39, .08) 0 2px, transparent 2px 12px),
    var(--bronze);
  border-top: 3px solid var(--gold);
}

.page-contact .coop-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 50px);
  align-items: start;
}

.page-contact .coop-title {
  margin: 10px 0 0;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1.28;
  color: var(--paper);
}

.page-contact .coop-lede {
  margin: 14px 0 0;
  max-width: 46ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(251, 246, 236, .84);
}

.page-contact .coop-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 24px 0 0;
}

.page-contact .coop-cta .copy-btn {
  color: var(--clay-dark);
  border-color: var(--gold);
}

.page-contact .coop-cta .copy-btn[data-copied] {
  background: var(--paper);
  border-color: var(--paper);
  color: var(--bronze);
}

.page-contact .coop-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-contact .coop-list li {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 12px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--paper-line);
}

.page-contact .coop-num {
  font-family: var(--serif);
  font-size: 20px;
  line-height: 1.4;
  color: var(--gold);
}

.page-contact .coop-list h3 {
  margin: 0 0 6px;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 16px;
  color: var(--paper);
}

.page-contact .coop-list p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(251, 246, 236, .82);
}

/* ---------- 延伸阅读 ---------- */
.page-contact .next-section {
  background: var(--sand);
}

.page-contact .next-links {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-contact .next-links a {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-left: 3px solid var(--bronze-light);
  border-radius: var(--radius);
  text-decoration: none;
  transition: transform .2s var(--ease), border-left-color .2s var(--ease), box-shadow .2s var(--ease);
}

.page-contact .next-links a:hover,
.page-contact .next-links a:focus-visible {
  transform: translateY(-3px);
  border-left-color: var(--clay);
  box-shadow: 4px 6px 0 rgba(158, 59, 42, .12);
  outline: none;
}

.page-contact .next-title {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 17px;
  color: var(--clay-deep);
}

.page-contact .next-desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--stone);
}

.page-contact .next-home {
  margin: 22px 0 0;
}

.page-contact .next-home a {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .05em;
  color: var(--clay);
  text-decoration: none;
  border-bottom: 2px solid var(--gold);
  padding-bottom: 2px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .contact-card:nth-child(2) { margin-left: 14px; }
  .page-contact .contact-card:nth-child(3) { margin-left: 28px; }

  .page-contact .prep-grid { grid-template-columns: 1fr 1fr; gap: 14px; }

  .page-contact .next-links { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 900px) {
  .page-contact .hero-inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(30px, 4vw, 56px);
  }

  .page-contact .channel {
    grid-template-columns: 96px minmax(0, 1.35fr) minmax(0, .85fr);
    gap: clamp(18px, 3vw, 36px);
    align-items: start;
  }

  .page-contact .mail-split { grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); }

  .page-contact .address-split { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }

  .page-contact .coop-inner { grid-template-columns: minmax(0, 1fr) minmax(0, .9fr); }
}

@media (min-width: 1180px) {
  .page-contact .hero-copy h1 { font-size: 56px; }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-card,
  .page-contact .next-links a,
  .page-contact .copy-btn {
    transition: none;
  }
  .page-contact .contact-card:hover,
  .page-contact .contact-card:focus-within,
  .page-contact .next-links a:hover,
  .page-contact .next-links a:focus-visible {
    transform: none;
  }
}
<<<END>>>