.page-contact {
  --ct-radius: 3px;
  --ct-deep: rgba(16, 58, 92, 0.92);
  --ct-shadow: 0 20px 44px -32px rgba(16, 58, 92, 0.6);
  background-color: var(--paper);
  color: var(--text);
}

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

/* ---------- 面包屑与首屏文案 ---------- */
.page-contact .contact-hero {
  padding: clamp(1.5rem, 4vw, 2.75rem) 0 clamp(2.5rem, 6vw, 4.5rem);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--tide);
}

.page-contact .contact-crumb a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 180ms var(--ease);
}

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

.page-contact .contact-crumb__now {
  color: var(--text);
}

.page-contact .contact-hero__head {
  max-width: 44rem;
  margin-top: clamp(1.25rem, 3vw, 2rem);
}

.page-contact .contact-hero__head h1 {
  margin: 0.7rem 0 1rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.85rem, 5.4vw, 3.2rem);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-contact .contact-hero__lead {
  max-width: 40ch;
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: var(--text);
}

/* ---------- 章节跳转胶囊 ---------- */
.page-contact .jump {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  margin: clamp(1.5rem, 3vw, 2rem) 0 clamp(1.25rem, 3vw, 1.75rem);
  padding: clamp(1rem, 2.5vw, 1.25rem) 0 0;
  border-top: 1px solid var(--line);
}

.page-contact .jump__link {
  display: inline-block;
  padding: 0.4rem 0.85rem;
  font-size: var(--fs-14);
  color: var(--ink);
  text-decoration: none;
  background-color: var(--glass);
  border: 1px solid var(--line);
  border-radius: 999px;
  transition: border-color 160ms var(--ease), color 160ms var(--ease), background-color 160ms var(--ease);
}

.page-contact .jump__link:hover,
.page-contact .jump__link:focus-visible {
  color: var(--tide);
  border-color: var(--tide);
  background-color: rgba(255, 255, 255, 0.85);
}

/* ---------- 左右分栏 ---------- */
.page-contact .contact-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
}

/* ---------- 靛青联系卡 ---------- */
.page-contact .contact-card {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(1.5rem, 4.5vw, 2.5rem);
  background-color: var(--ink);
  border-radius: var(--ct-radius);
  box-shadow: var(--ct-shadow);
  color: var(--paper);
}

.page-contact .contact-card__bg {
  position: absolute;
  right: 0;
  bottom: 0;
  z-index: -1;
  width: min(82%, 420px);
  object-fit: cover;
  opacity: 0.22;
  filter: saturate(0.55) contrast(1.06);
  border-top-left-radius: 60% 40%;
}

.page-contact .contact-card__inner {
  position: relative;
  z-index: 1;
}

.page-contact .contact-card__label {
  display: inline-block;
  margin: 0 0 1.4rem;
  padding: 0.3rem 0.6rem;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--shallow);
  border: 1px solid rgba(159, 196, 216, 0.5);
  border-radius: 2px;
}

.page-contact .contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.15rem;
}

.page-contact .contact-item {
  display: grid;
  gap: 0.28rem;
  padding-bottom: 1.15rem;
  border-bottom: 1px solid rgba(159, 196, 216, 0.26);
}

.page-contact .contact-item:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-contact .contact-item__key {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--shallow);
}

.page-contact .contact-item__val {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.05rem, 2.6vw, 1.35rem);
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: #ffffff;
  text-decoration: none;
  overflow-wrap: anywhere;
  transition: color 160ms var(--ease);
}

.page-contact a.contact-item__val:hover,
.page-contact a.contact-item__val:focus-visible {
  color: #ffffff;
  text-decoration: underline;
  text-decoration-color: var(--signal);
  text-decoration-thickness: 2px;
  text-underline-offset: 5px;
}

.page-contact .contact-item__val--addr {
  font-size: var(--fs-16);
  font-weight: 500;
  line-height: 1.7;
  color: var(--paper);
}

.page-contact .contact-item__desc {
  font-size: var(--fs-14);
  line-height: 1.7;
  color: rgba(248, 245, 239, 0.76);
}

.page-contact .contact-card__note {
  margin: 1.5rem 0 0;
  padding-left: 0.9rem;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: rgba(248, 245, 239, 0.82);
  border-left: 2px solid var(--signal);
}

/* ---------- 来件模板 ---------- */
.page-contact .sheet {
  padding: clamp(1.35rem, 3.6vw, 2.25rem);
  background-color: #ffffff;
  border: 1px solid var(--line);
  border-radius: var(--ct-radius);
  box-shadow: 0 16px 34px -32px rgba(16, 58, 92, 0.55);
}

.page-contact .sheet__title {
  margin: 0.4rem 0 1.2rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.2rem, 3.2vw, 1.55rem);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .sheet__rows {
  display: grid;
  gap: 0.5rem;
}

.page-contact .sheet-row {
  display: grid;
  grid-template-columns: 5rem minmax(0, 1fr);
  gap: 0.5rem 0.7rem;
  align-items: baseline;
  padding: 0.55rem 0.7rem;
  background-color: rgba(248, 245, 239, 0.72);
  border: 1px dashed var(--line);
  border-radius: 2px;
  transition: border-color 160ms var(--ease), background-color 160ms var(--ease);
}

.page-contact .sheet-row:hover {
  border-color: var(--shallow);
  background-color: rgba(239, 230, 214, 0.55);
}

.page-contact .sheet-row__k {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  color: var(--tide);
}

.page-contact .sheet-row__v {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  line-height: 1.6;
  color: var(--text);
  overflow-wrap: anywhere;
}

.page-contact .sheet__hint {
  margin: 1.1rem 0 0;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--text);
}

.page-contact .sheet__hint a,
.page-contact .chapter__body .prose a {
  color: var(--tide);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color 160ms var(--ease);
}

.page-contact .sheet__hint a:hover,
.page-contact .sheet__hint a:focus-visible,
.page-contact .chapter__body .prose a:hover,
.page-contact .chapter__body .prose a:focus-visible {
  color: var(--ink);
}

/* ---------- 编号章节 ---------- */
.page-contact .chapter {
  padding: clamp(2.25rem, 6vw, 4rem) 0;
  border-top: 1px solid var(--line);
}

.page-contact .chapter--sand {
  background-color: var(--sand);
}

.page-contact .chapter__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
}

.page-contact .chapter__num {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(2.75rem, 9vw, 5rem);
  line-height: 0.85;
  letter-spacing: -0.02em;
  color: var(--shallow);
}

.page-contact .chapter__body {
  min-width: 0;
}

.page-contact .chapter__title {
  margin: 0 0 0.85rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.35rem, 3.6vw, 1.95rem);
  line-height: 1.25;
  letter-spacing: -0.015em;
  color: var(--ink);
}

.page-contact .chapter__body .prose {
  max-width: 34em;
  margin: 0 0 1.15rem;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: var(--text);
}

/* ---------- 处理节奏刻度条 ---------- */
.page-contact .rhythm {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .rhythm__row {
  display: grid;
  grid-template-columns: 1.75rem minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.35rem 0.85rem;
  padding: 1.05rem 0.25rem;
  border-bottom: 1px solid var(--line);
  transition: background-color 180ms var(--ease);
}

.page-contact .rhythm__row:hover,
.page-contact .rhythm__row:focus-within {
  background-color: rgba(46, 127, 168, 0.06);
}

.page-contact .rhythm__row:focus-visible {
  outline: 2px solid var(--tide);
  outline-offset: 2px;
}

.page-contact .rhythm__idx {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--shallow);
}

.page-contact .rhythm__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-16);
  color: var(--ink);
}

.page-contact .rhythm__tag {
  justify-self: end;
  padding: 0.12rem 0.55rem;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  color: var(--signal);
  border: 1px solid rgba(217, 85, 31, 0.38);
  border-radius: 999px;
  white-space: nowrap;
}

.page-contact .rhythm__meter {
  grid-column: 2 / -1;
  position: relative;
  height: 2px;
  background-color: var(--line);
  overflow: hidden;
}

.page-contact .rhythm__meter-fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 68%;
  background-color: var(--tide);
  transition: width 220ms var(--ease);
}

.page-contact .rhythm__row:nth-child(2) .rhythm__meter-fill {
  width: 90%;
}

.page-contact .rhythm__row:nth-child(3) .rhythm__meter-fill {
  width: 46%;
}

.page-contact .rhythm__row:hover .rhythm__meter-fill {
  background-color: var(--signal);
}

.page-contact .rhythm__note {
  grid-column: 1 / -1;
  margin: 0.55rem 0 0;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--text);
  opacity: 1;
}

/* ---------- 案例与共建 ---------- */
.page-contact .cases-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
  margin-top: 0.5rem;
}

.page-contact .cases-flow {
  list-style: none;
  counter-reset: caseflow;
  margin: 0 0 1.25rem;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.page-contact .cases-flow li {
  position: relative;
  counter-increment: caseflow;
  padding-left: 2.1rem;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--text);
}

.page-contact .cases-flow li::before {
  content: counter(caseflow, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.15em;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  color: var(--signal);
}

.page-contact .cases-figure {
  margin: 0;
}

.page-contact .cases-figure .media__frame {
  border: 1px solid var(--line);
  background-color: rgba(255, 255, 255, 0.6);
}

.page-contact .cases-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .cases-figure .media__caption {
  margin-top: 0.6rem;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.04em;
  line-height: 1.7;
  color: var(--tide);
}

/* ---------- 邮寄说明 ---------- */
.page-contact .postal-card {
  margin: 0 0 1.35rem;
  padding: clamp(1.15rem, 3vw, 1.85rem);
  background-color: #ffffff;
  border: 1px solid var(--line);
  border-left: 3px solid var(--tide);
  border-radius: var(--ct-radius);
  display: grid;
  gap: 0.7rem;
}

.page-contact .postal-line {
  display: grid;
  grid-template-columns: 4.5rem minmax(0, 1fr);
  gap: 0.5rem 0.75rem;
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.75;
}

.page-contact .postal-line__k {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  color: var(--tide);
  padding-top: 0.15rem;
}

.page-contact .postal-line__v {
  color: var(--text);
  overflow-wrap: anywhere;
}

/* ---------- 收尾 ---------- */
.page-contact .contact-coda {
  padding: clamp(2.25rem, 5vw, 3.25rem) 0 clamp(3rem, 7vw, 5rem);
  background-color: var(--sand);
  border-top: 1px solid var(--line);
}

.page-contact .coda__inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.5rem;
}

.page-contact .coda__text h2 {
  margin: 0.5rem 0 0.6rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.3rem, 3.4vw, 1.8rem);
  letter-spacing: -0.015em;
  color: var(--ink);
}

.page-contact .coda__lead {
  max-width: 38ch;
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--text);
}

.page-contact .coda__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-contact .sheet-row {
    grid-template-columns: 6rem minmax(0, 1fr);
  }

  .page-contact .coda__inner {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
  }
}

@media (min-width: 900px) {
  .page-contact .chapter__inner {
    grid-template-columns: 5rem minmax(0, 1fr);
    gap: clamp(1.5rem, 3.5vw, 3rem);
    align-items: start;
  }

  .page-contact .chapter__num {
    font-size: clamp(3.5rem, 6vw, 4.75rem);
  }

  .page-contact .cases-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
    gap: clamp(1.5rem, 3vw, 2.5rem);
  }

  .page-contact .rhythm__note {
    max-height: 0;
    margin-top: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 220ms var(--ease), opacity 220ms var(--ease), margin-top 220ms var(--ease);
  }

  .page-contact .rhythm__row:hover .rhythm__note,
  .page-contact .rhythm__row:focus-within .rhythm__note,
  .page-contact .rhythm__row:focus .rhythm__note {
    max-height: 12rem;
    margin-top: 0.55rem;
    opacity: 1;
  }
}

@media (min-width: 980px) {
  .page-contact .contact-split {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    align-items: start;
    gap: clamp(1.5rem, 3vw, 2.5rem);
  }

  .page-contact .contact-card__bg {
    width: min(70%, 400px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .rhythm__meter-fill,
  .page-contact .rhythm__note,
  .page-contact .jump__link,
  .page-contact .sheet-row {
    transition: none;
  }
}
<<<END>>>