.page-contact {
  --contact-block: clamp(40px, 6vw, 84px);
  --contact-block-sm: clamp(26px, 4vw, 52px);
  background: var(--paper);
  color: var(--text);
}

.page-contact .container {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---------- 通用：本页网格的移动端优先塌陷 ---------- */
.page-contact .contact-hero__grid,
.page-contact .contact-main__grid,
.page-contact .contact-twin__grid,
.page-contact .contact-cta__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--gap);
}

.page-contact .col-5,
.page-contact .col-6,
.page-contact .col-7,
.page-contact .col-8,
.page-contact .col-4 {
  min-width: 0;
}

/* ---------- 顶部：面包屑 + 标题 + 快速入口 ---------- */
.page-contact .contact-hero {
  padding-top: clamp(24px, 4vw, 48px);
  padding-bottom: var(--contact-block-sm);
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(227, 217, 198, 0.55) 0%, rgba(243, 237, 225, 0) 100%);
}

.page-contact .breadcrumb {
  margin-bottom: clamp(20px, 3vw, 40px);
}

.page-contact .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .breadcrumb__list li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}

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

.page-contact .breadcrumb__list a:hover,
.page-contact .breadcrumb__list a:focus-visible {
  color: var(--bamboo);
  border-bottom-color: var(--bamboo);
}

.page-contact .breadcrumb__list [aria-current="page"] {
  color: var(--ink-2);
}

.page-contact .contact-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  color: var(--muted);
}

.page-contact .contact-eyebrow::before {
  content: "";
  width: 26px;
  height: 3px;
  background: var(--copper);
  display: inline-block;
}

.page-contact .contact-hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(38px, 6.4vw, 62px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  margin: 0 0 20px;
  color: var(--ink);
  max-width: 15ch;
}

.page-contact .contact-hero__lead {
  margin: 0;
  max-width: 60ch;
  font-size: 17px;
  line-height: 1.75;
  color: var(--text);
}

.page-contact .contact-hero__aside {
  align-self: end;
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.page-contact .contact-hero__aside-label {
  margin: 0 0 12px;
  color: var(--muted);
}

.page-contact .contact-quicklinks {
  list-style: none;
  margin: 0;
  padding: 0;
}

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

.page-contact .contact-quicklinks__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 13px 2px;
  text-decoration: none;
  color: var(--ink-2);
  font-family: var(--font-body);
  font-weight: 500;
  transition: color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}

.page-contact .contact-quicklinks__link:hover,
.page-contact .contact-quicklinks__link:focus-visible {
  color: var(--bamboo);
  padding-left: 8px;
}

.page-contact .contact-quicklinks__arrow {
  color: var(--copper);
  font-size: 15px;
}

/* ---------- 主区：路径 + 邮箱 ---------- */
.page-contact .contact-main {
  padding-block: var(--contact-block);
}

.page-contact .section-head {
  margin-bottom: clamp(22px, 3vw, 36px);
}

.page-contact .section-head__num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--copper);
  border-bottom: 2px solid var(--copper);
  padding-bottom: 3px;
  margin-bottom: 12px;
}

.page-contact .section-head__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 3.6vw, 34px);
  line-height: 1.18;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin: 0 0 10px;
}

.page-contact .section-head__desc {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.65;
  max-width: 46ch;
}

/* 步骤路径 */
.page-contact .contact-steps {
  position: relative;
  list-style: none;
  margin: 0 0 clamp(28px, 4vw, 46px);
  padding: 0 0 0 22px;
  display: grid;
  gap: 12px;
}

.page-contact .contact-steps::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  bottom: 14px;
  width: 3px;
  background: linear-gradient(180deg, var(--bamboo) 0%, var(--copper) 70%, var(--gold) 100%);
}

.page-contact .contact-steps__item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 16px 18px;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: background var(--dur) var(--ease);
}

.page-contact .contact-steps__item:hover {
  background: #EDE3D0;
}

.page-contact .contact-steps__num {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--copper);
  padding-top: 3px;
}

.page-contact .contact-steps__body h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .contact-steps__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
}

/* 表单截图 */
.page-contact .contact-figure {
  margin: 0;
}

.page-contact .contact-figure .media-frame {
  background: var(--paper-2);
  border: 1px solid var(--line);
  overflow: hidden;
}

.page-contact .contact-figure .media-frame__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-contact .contact-figure__cap {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 14px;
}

/* 右侧栏 */
.page-contact .contact-aside {
  display: grid;
  gap: clamp(16px, 2.2vw, 22px);
  align-content: start;
}

.page-contact .contact-mail {
  position: relative;
  overflow: hidden;
  padding: 0;
  color: var(--on-ink);
  isolation: isolate;
}

.page-contact .contact-mail__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.24;
  z-index: 0;
}

.page-contact .contact-mail__body {
  position: relative;
  z-index: 1;
  padding: clamp(24px, 3vw, 36px);
}

.page-contact .contact-mail__label {
  margin: 0 0 14px;
  color: var(--on-ink-soft);
}

.page-contact .contact-mail__addr {
  margin: 0 0 14px;
  font-size: clamp(15px, 2vw, 18px);
  font-weight: 700;
  letter-spacing: -0.005em;
  color: var(--on-ink);
  word-break: break-all;
}

.page-contact .contact-mail__status {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 20px;
  font-size: 14px;
  color: var(--on-ink-soft);
}

.page-contact .contact-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--bamboo-bright);
  box-shadow: 0 0 0 4px rgba(52, 168, 124, 0.18);
  flex: none;
}

.page-contact .contact-mail__hr {
  border: 0;
  border-top: 1px solid var(--ink-line);
  margin: 0 0 18px;
}

.page-contact .contact-mail__note {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--on-ink-soft);
}

/* 处理次序 */
.page-contact .contact-ledger {
  padding: clamp(20px, 2.6vw, 28px);
}

.page-contact .contact-ledger__label {
  margin: 0 0 14px;
  color: var(--muted);
}

.page-contact .contact-ledger__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .contact-ledger__list li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 15px;
  color: var(--text);
}

.page-contact .contact-ledger__list li:last-child {
  border-bottom: 0;
}

.page-contact .contact-ledger__list .t-mono {
  color: var(--bamboo);
  font-weight: 700;
  flex: none;
}

.page-contact .contact-ledger__note {
  margin: 14px 0 0;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 勘误与合作 ---------- */
.page-contact .contact-twin {
  padding-block: var(--contact-block-sm) var(--contact-block);
  background: linear-gradient(180deg, rgba(227, 217, 198, 0) 0%, rgba(227, 217, 198, 0.5) 100%);
}

.page-contact .contact-twin__card {
  padding: clamp(22px, 3vw, 34px);
  border-radius: var(--radius);
}

.page-contact .contact-twin__title {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 2.2vw, 22px);
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .contact-twin__title--dark {
  color: var(--on-ink);
}

.page-contact .contact-fields {
  margin: 0 0 18px;
}

.page-contact .contact-fields__row {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 16px;
  padding: 13px 0;
  border-top: 1px solid var(--line);
}

.page-contact .contact-fields__row:last-child {
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-fields dt {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--copper);
  padding-top: 2px;
}

.page-contact .contact-fields dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--text);
}

.page-contact .contact-twin__note {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

.page-contact .contact-twin__p {
  margin: 0 0 20px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--on-ink-soft);
}

.page-contact .contact-twin__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .contact-twin__list li {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding-top: 14px;
  border-top: 1px solid var(--ink-line);
}

.page-contact .contact-twin__list li:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .contact-twin__li-text {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--on-ink-soft);
}

/* ---------- 底部信息带 ---------- */
.page-contact .contact-band {
  padding-block: var(--contact-block-sm) var(--contact-block-sm);
}

.page-contact .contact-band__head {
  margin-bottom: 22px;
}

.page-contact .contact-band__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border-top: 1px solid var(--line);
}

.page-contact .contact-band__cell {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 4px 22px;
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-band__cell::before {
  content: "";
  position: absolute;
  top: 0;
  left: 4px;
  width: 28px;
  height: 3px;
  background: var(--copper);
}

.page-contact .contact-band__cell--icp::before {
  background: var(--gold);
}

.page-contact .contact-band__key {
  color: var(--muted);
  margin-bottom: 4px;
}

.page-contact .contact-band__value {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.005em;
  color: var(--ink);
  word-break: break-word;
}

.page-contact .contact-band__value--long {
  font-size: 14px;
  line-height: 1.65;
}

.page-contact .contact-band__hint {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--muted);
  max-width: 34ch;
}

/* ---------- 斜线过渡 ---------- */
.page-contact .contact-rule {
  max-width: var(--wrap);
  margin: 0 auto clamp(28px, 4vw, 52px);
  padding-inline: var(--gutter);
  opacity: 0.9;
}

/* ---------- 尾部引导 ---------- */
.page-contact .contact-cta {
  padding-bottom: clamp(48px, 7vw, 96px);
}

.page-contact .contact-cta__text h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3vw, 30px);
  letter-spacing: -0.015em;
  color: var(--ink);
  margin: 0 0 12px;
}

.page-contact .contact-cta__text p {
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  max-width: 56ch;
}

.page-contact .contact-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-content: start;
}

.page-contact .contact-cta__actions .btn {
  flex: 1 1 180px;
  justify-content: center;
  text-align: center;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-contact .contact-band__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .contact-band__cell {
    padding: 22px 24px 26px;
    border-right: 1px solid var(--line);
  }

  .page-contact .contact-band__cell::before {
    left: 24px;
  }

  .page-contact .contact-band__cell:nth-child(2n) {
    border-right: 0;
  }

  .page-contact .contact-fields__row {
    grid-template-columns: 110px minmax(0, 1fr);
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: 7fr 5fr;
    gap: clamp(28px, 4vw, 56px);
    align-items: end;
  }

  .page-contact .contact-hero__aside {
    padding-top: 22px;
  }

  .page-contact .contact-main__grid {
    grid-template-columns: 7fr 5fr;
    gap: clamp(28px, 4vw, 56px);
    align-items: start;
  }

  .page-contact .contact-twin__grid {
    grid-template-columns: 6fr 6fr;
    gap: clamp(20px, 2.6vw, 32px);
  }

  .page-contact .contact-cta__grid {
    grid-template-columns: 8fr 4fr;
    gap: clamp(24px, 3vw, 48px);
    align-items: center;
  }

  .page-contact .contact-cta__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .page-contact .contact-cta__actions .btn {
    flex: 0 0 auto;
  }
}

@media (min-width: 1024px) {
  .page-contact .contact-band__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .contact-band__cell {
    border-right: 1px solid var(--line);
  }

  .page-contact .contact-band__cell:last-child {
    border-right: 0;
  }

  .page-contact .contact-band__cell:nth-child(2n) {
    border-right: 1px solid var(--line);
  }
}

/* ---------- 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-quicklinks__link,
  .page-contact .contact-steps__item {
    transition: none;
  }
}
<<<END>>>