.page-contact {
  --contact-card-line: 1px solid rgba(92, 126, 140, 0.34);
  background: var(--paper);
  color: var(--ink);
  padding-bottom: 0;
}

/* 面包屑 */
.page-contact .contact-crumb {
  padding-top: 20px;
}

.page-contact .contact-crumb .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--stone);
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .contact-crumb .breadcrumb-list li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--lotus);
}

.page-contact .contact-crumb a {
  color: var(--ink-blue);
  text-decoration: none;
}

.page-contact .contact-crumb a:hover,
.page-contact .contact-crumb a:focus-visible {
  color: var(--cinnabar);
}

/* 首屏 */
.page-contact .contact-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  padding-top: 20px;
  padding-bottom: 52px;
}

.page-contact .seal {
  width: 62px;
  height: 62px;
  border: 2px solid var(--cinnabar);
  border-radius: 5px;
  background: rgba(181, 56, 44, 0.07);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.page-contact .seal-char {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  line-height: 1;
  color: var(--cinnabar);
}

.page-contact h1 {
  font-family: var(--font-display);
  font-size: clamp(31px, 7.4vw, 52px);
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 14px 0 20px;
}

.page-contact .hero-lede {
  font-size: 17px;
  line-height: 1.85;
  color: var(--ink-blue);
  max-width: 34em;
  margin: 0 0 30px;
}

.page-contact .mail-block {
  border-left: 2px solid var(--cinnabar);
  padding: 2px 0 2px 18px;
}

.page-contact .mail-label {
  display: block;
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--stone);
  margin-bottom: 8px;
}

.page-contact .mail-address {
  font-family: var(--font-mono);
  font-size: clamp(17px, 4.4vw, 25px);
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: 0.01em;
  color: var(--cinnabar);
  margin: 0 0 8px;
  word-break: break-all;
  overflow-wrap: anywhere;
}

.page-contact .mail-note {
  margin: 0;
  font-size: 14px;
  color: var(--stone);
  letter-spacing: 0.04em;
}

.page-contact .hero-side {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 30px;
  gap: 14px;
  align-items: start;
}

.page-contact .hero-side .photo {
  margin: 0;
  overflow: hidden;
  aspect-ratio: 3 / 2;
  background: var(--paper-warm);
}

.page-contact .hero-side .photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-contact .hero-side .note-vertical {
  font-size: 13px;
  line-height: 1.7;
  letter-spacing: 0.12em;
  color: var(--stone);
  margin: 0;
  max-height: 280px;
}

/* 邮件写法 */
.page-contact .contact-write {
  background: var(--paper-warm);
  padding: 48px 0 52px;
}

.page-contact .write-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
}

.page-contact .write-intro h2,
.page-contact .contact-kinds h2,
.page-contact .contact-flow h2,
.page-contact .contact-envelope h2 {
  font-family: var(--font-display);
  font-size: clamp(25px, 5.2vw, 36px);
  line-height: 1.32;
  font-weight: 700;
  color: var(--ink);
  margin: 12px 0 16px;
}

.page-contact .write-lede {
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-blue);
  margin: 0 0 14px;
}

.page-contact .write-tip {
  font-size: 14px;
  line-height: 1.8;
  color: var(--stone);
  margin: 0;
}

.page-contact .write-tip a {
  color: var(--cinnabar);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .write-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid rgba(92, 126, 140, 0.6);
}

.page-contact .write-list > li {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 12px;
  padding: 16px 0;
  border-bottom: var(--contact-card-line);
}

.page-contact .write-list .num {
  font-size: 15px;
  line-height: 1.6;
  color: var(--cinnabar);
  padding-top: 2px;
}

.page-contact .write-list h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 4px;
}

.page-contact .write-list p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-blue);
}

/* 三类诉求 */
.page-contact .contact-kinds {
  padding: 52px 0 48px;
}

.page-contact .section-head p {
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-blue);
  margin: 0;
  max-width: 36em;
}

.page-contact .kind-rows {
  margin-top: 28px;
  border-top: 1px solid rgba(92, 126, 140, 0.6);
}

.page-contact .kind-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  padding: 24px 0;
  border-bottom: var(--contact-card-line);
}

.page-contact .kind-tag {
  justify-self: start;
  align-self: start;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--cinnabar);
  border: 1px solid var(--cinnabar);
  padding: 5px 11px;
  border-radius: 2px;
  line-height: 1.3;
  white-space: nowrap;
}

.page-contact .kind-body h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 8px;
  line-height: 1.5;
}

.page-contact .kind-body p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-blue);
}

.page-contact .kind-body a {
  color: var(--cinnabar);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .kind-meta {
  font-size: 14px;
  color: var(--ink);
  background: var(--lotus-pale);
  padding: 8px 12px;
  border-radius: 2px;
  line-height: 1.7;
}

.page-contact .kind-handler {
  margin: 0;
  font-size: 14px;
  color: var(--stone);
  letter-spacing: 0.02em;
}

.page-contact .kinds-note {
  margin: 24px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--stone);
  padding-left: 14px;
  border-left: 2px solid var(--lotus);
}

.page-contact .kinds-note a {
  color: var(--ink-blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 深墨落款 */
.page-contact .contact-envelope {
  background: var(--ink);
  color: var(--paper);
  padding: 52px 0;
}

.page-contact .contact-envelope .eyebrow {
  color: var(--lotus-pale);
  border-color: var(--lotus);
}

.page-contact .contact-envelope h2 {
  color: var(--paper);
}

.page-contact .envelope-lede {
  font-size: 16px;
  line-height: 1.85;
  color: rgba(246, 240, 228, 0.78);
  margin: 0;
  max-width: 34em;
}

.page-contact .envelope-list {
  margin: 30px 0 0;
  padding: 0;
  border-top: var(--hair-light);
}

.page-contact .envelope-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 16px 0;
  border-bottom: var(--hair-light);
}

.page-contact .envelope-item dt {
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--lotus);
}

.page-contact .envelope-item dd {
  margin: 0;
  font-size: 18px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-all;
  overflow-wrap: anywhere;
}

.page-contact .envelope-item dd.num {
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

.page-contact .envelope-foot {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(246, 240, 228, 0.66);
}

/* 处理流程 */
.page-contact .contact-flow {
  padding: 52px 0 44px;
}

.page-contact .flow-list {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
}

.page-contact .flow-list > li {
  border-left: 2px solid var(--lotus);
  padding: 2px 0 2px 16px;
}

.page-contact .flow-num {
  display: block;
  font-size: 15px;
  color: var(--cinnabar);
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}

.page-contact .flow-list h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 6px;
}

.page-contact .flow-list p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-blue);
}

/* 底部收束 */
.page-contact .contact-tail {
  padding: 0 0 52px;
}

.page-contact .contact-tail-photo {
  margin: 0 0 0;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--paper-warm);
}

.page-contact .contact-tail-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-contact .tail-return {
  position: relative;
  margin-left: 5px;
  padding: 24px 0 4px 22px;
  border-left: 2px solid var(--lotus);
}

.page-contact .tail-return::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 28px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--cinnabar);
}

.page-contact .tail-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-blue);
}

.page-contact .tail-text a {
  color: var(--cinnabar);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 4px;
  margin-left: 6px;
}

/* 中等屏幕 */
@media (min-width: 720px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 44px;
    align-items: start;
    padding-top: 28px;
    padding-bottom: 72px;
  }

  .page-contact .flow-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
  }

  .page-contact .kind-row {
    grid-template-columns: 152px minmax(0, 1fr);
    gap: 28px;
    padding: 26px 0;
  }

  .page-contact .envelope-item {
    grid-template-columns: 110px minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
    padding: 16px 0;
  }

  .page-contact .write-grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: 52px;
    align-items: start;
  }
}

/* 桌面 */
@media (min-width: 1024px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    gap: 64px;
    padding-bottom: 88px;
  }

  .page-contact .hero-side .photo {
    aspect-ratio: 3 / 2;
  }

  .page-contact .contact-write {
    padding: 60px 0 64px;
  }

  .page-contact .contact-kinds {
    padding: 64px 0 56px;
  }

  .page-contact .contact-envelope {
    padding: 64px 0;
  }

  .page-contact .contact-flow {
    padding: 64px 0 52px;
  }

  .page-contact .contact-tail {
    padding-bottom: 64px;
  }
}

/* 降低动效偏好 */
@media (prefers-reduced-motion: reduce) {
  .page-contact .write-list > li,
  .page-contact .kind-row,
  .page-contact .flow-list > li {
    transition: none;
  }
}
<<<END>>>