.page-contact {
  background: var(--sand);
  color: var(--ink);
  font-family: var(--font-sans);
  line-height: 1.78;
  padding-bottom: clamp(1rem, 3vw, 2rem);
  overflow-x: hidden;
}

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

.page-contact .mono {
  font-family: var(--font-mono);
  letter-spacing: .01em;
}

/* ---------- 面包屑 ---------- */
.page-contact .crumb {
  padding-top: 1.1rem;
}

.page-contact .crumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .4rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .04em;
  color: var(--slate);
}

.page-contact .crumb-item + .crumb-item::before {
  content: "/";
  margin-right: .4rem;
  color: var(--azurite-soft);
}

.page-contact .crumb-item a {
  color: var(--azurite);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .2s var(--ease);
}

.page-contact .crumb-item a:hover,
.page-contact .crumb-item a:focus-visible {
  border-bottom-color: currentColor;
}

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

/* ---------- 首屏 ---------- */
.page-contact .contact-head {
  display: grid;
  gap: 1.4rem;
  padding: clamp(1.6rem, 4vw, 2.6rem) 0 clamp(1.8rem, 4vw, 3rem);
}

.page-contact .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .18em;
  color: var(--ochre);
  text-transform: uppercase;
}

.page-contact .page-title {
  margin: .5rem 0 .9rem;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(2rem, 6vw, 3.5rem);
  line-height: 1.12;
  letter-spacing: -.015em;
  color: var(--ink);
}

.page-contact .page-lede {
  margin: 0;
  max-width: 48ch;
  font-size: 1rem;
  color: var(--slate);
}

.page-contact .contact-head__seal {
  display: flex;
  align-items: center;
  gap: .7rem;
}

.page-contact .seal {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  flex: none;
  background: var(--cinnabar);
  color: var(--paper);
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 1.5rem;
  border-radius: 2px;
  box-shadow: inset 0 0 0 2px rgba(255, 249, 238, .28);
}

.page-contact .contact-head__sealtag {
  font-size: .74rem;
  letter-spacing: .14em;
  color: var(--slate);
}

/* ---------- 双栏联系板 ---------- */
.page-contact .contact-board {
  padding-bottom: clamp(2rem, 5vw, 3.5rem);
}

.page-contact .contact-board__grid {
  display: grid;
  gap: 1.1rem;
}

.page-contact .section-title {
  margin: 0 0 .6rem;
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(1.4rem, 3.4vw, 1.95rem);
  line-height: 1.3;
  letter-spacing: -.01em;
}

.page-contact .channel-card {
  position: relative;
  overflow: hidden;
  padding: clamp(1.4rem, 4vw, 2.4rem);
  background: var(--azurite);
  color: var(--paper);
  border-radius: var(--radius);
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line-paper) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-paper) 1px, transparent 1px);
  background-size: 52px 52px;
  opacity: .3;
  pointer-events: none;
}

.page-contact .channel-card > * {
  position: relative;
  z-index: 1;
}

.page-contact .channel-card .section-title {
  color: var(--paper);
}

.page-contact .channel-card__note {
  margin: 0 0 1.4rem;
  max-width: 44ch;
  font-size: .94rem;
  opacity: .84;
}

.page-contact .channel-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
}

.page-contact .channel-item {
  display: grid;
  grid-template-columns: 2.2rem minmax(0, 1fr);
  gap: .8rem;
  padding: 1rem 0;
  border-top: 1px solid var(--line-paper);
}

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

.page-contact .channel-item__icon {
  color: var(--azurite-soft);
  display: flex;
  align-items: flex-start;
  padding-top: .15rem;
}

.page-contact .channel-item__label {
  margin: 0;
  font-size: .8rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--azurite-soft);
  font-family: var(--font-mono);
}

.page-contact .channel-item__value {
  margin: .2rem 0 .25rem;
  font-size: .95rem;
  font-weight: 600;
  word-break: break-all;
  color: var(--paper);
}

.page-contact .channel-item__hint {
  margin: 0;
  font-size: .86rem;
  opacity: .78;
}

.page-contact .contact-channel__figure {
  margin: 1.4rem 0 0;
}

.page-contact .contact-channel__figure .figure__media {
  border-radius: 2px;
  overflow: hidden;
  border: 1px solid var(--line-paper);
  background: rgba(255, 249, 238, .08);
}

.page-contact .contact-channel__figure img {
  width: 100%;
  object-fit: cover;
}

/* ---------- 写信要点面板 ---------- */
.page-contact .msg-panel {
  display: flex;
  flex-direction: column;
  gap: .8rem;
  padding: clamp(1.4rem, 4vw, 2.2rem);
  background: var(--paper);
  border: 1px solid var(--line);
  border-left: 3px solid var(--cinnabar);
  border-radius: var(--radius);
}

.page-contact .msg-panel__lede {
  margin: 0;
  color: var(--slate);
  font-size: .95rem;
}

.page-contact .msg-steps {
  margin: .4rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .85rem;
}

.page-contact .msg-steps li {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr);
  gap: .75rem;
  padding-bottom: .85rem;
  border-bottom: 1px dashed var(--line);
}

.page-contact .msg-steps li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .msg-steps__num {
  font-size: .82rem;
  color: var(--cinnabar);
  padding-top: .1rem;
}

.page-contact .msg-steps__title {
  margin: 0 0 .15rem;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1rem;
}

.page-contact .msg-steps__text {
  margin: 0;
  font-size: .9rem;
  color: var(--slate);
}

.page-contact .msg-panel__foot {
  margin: .4rem 0 0;
  font-size: .84rem;
  color: var(--slate);
  border-top: 1px solid var(--line);
  padding-top: .8rem;
  word-break: break-word;
}

.page-contact .msg-panel__foot .mono {
  color: var(--azurite);
}

.page-contact a {
  color: var(--azurite);
  text-decoration: none;
  border-bottom: 1px solid rgba(31, 95, 107, .35);
  transition: border-color .2s var(--ease), color .2s var(--ease);
}

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

.page-contact a:focus-visible,
.page-contact summary:focus-visible {
  outline: 2px solid var(--azurite);
  outline-offset: 3px;
}

/* ---------- 响应节奏 ---------- */
.page-contact .contact-rhythm {
  background: var(--indigo);
  color: var(--paper);
  padding: clamp(2.4rem, 6vw, 4.2rem) 0;
}

.page-contact .contact-rhythm__grid {
  display: grid;
  gap: 1.6rem;
  align-items: center;
}

.page-contact .contact-rhythm__visual {
  border: 1px solid var(--line-paper);
  padding: .5rem;
  border-radius: 2px;
}

.page-contact .contact-rhythm__visual img {
  width: 100%;
  border-radius: 2px;
}

.page-contact .contact-rhythm .eyebrow {
  color: var(--azurite-soft);
}

.page-contact .contact-rhythm h2 {
  margin: .4rem 0 1.2rem;
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(1.5rem, 3.6vw, 2.15rem);
  line-height: 1.28;
  color: var(--paper);
}

.page-contact .rhythm-list {
  margin: 0 0 1.3rem;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .9rem;
}

.page-contact .rhythm-list li {
  display: grid;
  grid-template-columns: 1fr;
  gap: .15rem;
  padding-bottom: .9rem;
  border-bottom: 1px solid var(--line-paper);
}

.page-contact .rhythm-time {
  font-size: .86rem;
  letter-spacing: .08em;
  color: var(--azurite-soft);
}

.page-contact .rhythm-text {
  margin: 0;
  font-size: .94rem;
  opacity: .86;
}

/* ---------- 折叠组件 ---------- */
.page-contact details {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
}

.page-contact summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .9rem 1rem;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1rem;
}

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

.page-contact summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--cinnabar);
  line-height: 1;
}

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

.page-contact .contact-rhythm details {
  background: transparent;
  border-color: var(--line-paper);
}

.page-contact .contact-rhythm summary {
  color: var(--paper);
}

.page-contact .contact-rhythm summary::after {
  color: var(--azurite-soft);
}

.page-contact .steps-list {
  margin: 0;
  padding: 0 1rem 1rem;
  list-style: none;
  display: grid;
  gap: .55rem;
  font-size: .88rem;
  color: rgba(255, 249, 238, .82);
}

.page-contact .steps-list .mono {
  color: var(--azurite-soft);
  margin-right: .35rem;
}

.page-contact .steps-list .mono:not(:first-child) {
  margin-right: 0;
  color: inherit;
}

/* ---------- 咨询分类 ---------- */
.page-contact .contact-topics {
  padding: clamp(2.2rem, 5vw, 3.6rem) 0;
}

.page-contact .contact-topics__head {
  margin-bottom: 1.4rem;
}

.page-contact .section-note {
  margin: 0;
  max-width: 52ch;
  color: var(--slate);
  font-size: .95rem;
}

.page-contact .contact-topics__grid {
  display: grid;
  gap: .8rem;
  align-items: start;
}

.page-contact .topic {
  border: 1px solid var(--line);
  border-left: 3px solid var(--azurite);
  background: var(--paper);
}

.page-contact .topic--jade {
  border-left-color: var(--malachite);
}

.page-contact .topic--ochre {
  border-left-color: var(--ochre);
}

.page-contact .topic--cinnabar {
  border-left-color: var(--cinnabar);
}

.page-contact .topic summary {
  flex-wrap: wrap;
}

.page-contact .topic__title {
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: 1.05rem;
}

.page-contact .topic summary .tag {
  font-size: .7rem;
  letter-spacing: .1em;
  padding: .12rem .45rem;
  border: 1px solid var(--line-strong);
  color: var(--slate);
  border-radius: 2px;
  text-transform: uppercase;
}

.page-contact .topic--jade summary .tag {
  color: var(--malachite);
  border-color: rgba(62, 107, 79, .45);
}

.page-contact .topic__body {
  padding: 0 1rem 1rem;
  border-top: 1px dashed var(--line);
  padding-top: .8rem;
}

.page-contact .topic__body p {
  margin: 0 0 .6rem;
  font-size: .92rem;
  color: var(--slate);
}

.page-contact .topic__meta {
  font-size: .85rem !important;
  color: var(--azurite) !important;
}

/* ---------- 地址区 ---------- */
.page-contact .contact-address {
  padding: 0 0 clamp(2rem, 5vw, 3.4rem);
}

.page-contact .contact-address__inner {
  display: grid;
  gap: 1.2rem;
  padding: clamp(1.5rem, 4vw, 2.4rem);
  background: var(--paper);
  border: 1px solid var(--line);
  border-top: 3px solid var(--malachite);
  border-radius: var(--radius);
}

.page-contact .contact-address__text p {
  margin: 0 0 .8rem;
  font-size: .94rem;
  color: var(--slate);
}

.page-contact .contact-address__value {
  margin: 0 !important;
  font-size: 1.02rem !important;
  font-weight: 600;
  color: var(--ink) !important;
  word-break: break-word;
}

.page-contact .contact-address__stamp {
  display: flex;
  align-items: center;
  gap: .8rem;
  padding: .9rem 1rem;
  background: var(--malachite);
  color: var(--paper);
  border-radius: 2px;
}

.page-contact .contact-address__stamp p {
  margin: 0;
  font-size: .8rem;
  letter-spacing: .04em;
  line-height: 1.6;
}

.page-contact .seal--ghost {
  width: 48px;
  height: 48px;
  background: transparent;
  border: 1px solid rgba(255, 249, 238, .7);
  box-shadow: none;
  font-size: 1.2rem;
  color: var(--paper);
}

/* ---------- 维护标记 ---------- */
.page-contact .contact-upkeep {
  margin: 0;
  padding: .4rem 0 clamp(1.6rem, 4vw, 2.6rem);
  font-size: .82rem;
  color: var(--slate);
  border-top: 1px solid var(--line);
  padding-top: 1rem;
}

.page-contact .contact-upkeep .mono {
  color: var(--cinnabar);
  font-weight: 600;
  letter-spacing: .08em;
}

/* ---------- 桌面栅格 ---------- */
@media (min-width: 800px) {
  .page-contact .contact-head {
    grid-template-columns: minmax(0, 1fr) 140px;
    align-items: start;
  }

  .page-contact .contact-head__seal {
    flex-direction: column;
    align-items: flex-end;
    text-align: right;
    gap: .6rem;
    padding-top: .5rem;
  }

  .page-contact .seal {
    width: 76px;
    height: 76px;
    font-size: 1.9rem;
  }

  .page-contact .contact-board__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 1.4rem;
    align-items: start;
  }

  .page-contact .contact-rhythm__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 2.6rem;
  }

  .page-contact .rhythm-list li {
    grid-template-columns: 7.5rem minmax(0, 1fr);
    gap: 1rem;
  }

  .page-contact .contact-topics__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
  }

  .page-contact .contact-address__inner {
    grid-template-columns: minmax(0, 1fr) 280px;
    align-items: center;
    gap: 2rem;
  }
}

@media (min-width: 1080px) {
  .page-contact .contact-head {
    padding-top: 2.4rem;
  }

  .page-contact .channel-card {
    padding: 2.4rem 2.6rem;
  }
}
<<<END>>>