.page-contact {
  --pc-gap: clamp(14px, 2vw, 26px);
  --pc-skew: 26px;
  background: var(--ink-900);
  color: var(--paper-100);
  overflow-x: clip;
}

.page-contact .breadcrumb {
  padding-top: clamp(18px, 3vw, 32px);
  padding-bottom: clamp(10px, 1.5vw, 18px);
}

/* ---------- 首屏拼贴 ---------- */
.page-contact .contact-hero {
  padding: clamp(16px, 3vw, 34px) 0 clamp(48px, 7vw, 100px);
}

.page-contact .contact-collage {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  grid-template-areas:
    "lead"
    "mail"
    "side"
    "figure";
  gap: var(--pc-gap);
  align-items: stretch;
}

.page-contact .contact-collage__lead {
  grid-area: lead;
  max-width: 100%;
}

.page-contact .contact-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 5.4vw, 66px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin: 10px 0 16px;
  color: var(--paper-100);
}

.page-contact .contact-hero__intro {
  max-width: 38ch;
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--paper-300);
}

/* ---------- 联系信息块 ---------- */
.page-contact .contact-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(20px, 3vw, 34px);
  padding-bottom: calc(clamp(24px, 3vw, 38px) + var(--pc-skew));
  background: var(--ink-700);
  color: var(--paper-100);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--pc-skew)), 0 100%);
}

.page-contact .contact-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 54px;
  height: 3px;
  background: var(--cyan-400);
}

.page-contact .contact-card--mail {
  grid-area: mail;
  background: linear-gradient(155deg, var(--ink-700) 0%, var(--ink-850) 100%);
  box-shadow: inset 0 0 0 1px rgba(52, 240, 206, 0.2);
}

.page-contact .contact-card--phone {
  background: var(--ink-850);
}

.page-contact .contact-card--phone::before {
  background: var(--orange-500);
}

.page-contact .contact-card--addr {
  background: var(--moss-500);
}

.page-contact .contact-card--addr::before {
  background: var(--paper-300);
}

.page-contact .contact-card__label {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--cyan-400);
}

.page-contact .contact-card--phone .contact-card__label {
  color: var(--orange-500);
}

.page-contact .contact-card--addr .contact-card__label {
  color: var(--paper-100);
}

.page-contact .contact-card__value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(15px, 2.2vw, 22px);
  line-height: 1.4;
  letter-spacing: 0.01em;
  color: var(--paper-100);
  text-decoration: none;
  overflow-wrap: anywhere;
  transition: color 0.18s var(--ease);
}

.page-contact .contact-card--mail .contact-card__value {
  font-size: clamp(14px, 1.9vw, 19px);
}

.page-contact .contact-card__value:hover {
  color: var(--cyan-400);
}

.page-contact .contact-card__value--static {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: clamp(15px, 1.8vw, 18px);
  line-height: 1.6;
  color: var(--paper-100);
}

.page-contact .contact-card__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--paper-300);
}

.page-contact .contact-card--addr .contact-card__desc {
  color: var(--paper-100);
  opacity: 0.86;
}

.page-contact .contact-card__meta {
  list-style: none;
  margin: auto 0 0;
  padding: 14px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--gray-450);
}

.page-contact .contact-collage__stack {
  grid-area: side;
  display: grid;
  gap: var(--pc-gap);
}

.page-contact .contact-collage__figure {
  grid-area: figure;
  margin: 0;
  min-height: 220px;
  overflow: hidden;
}

.page-contact .contact-collage__figure .figure__frame {
  height: 100%;
  aspect-ratio: auto;
  border: 1px solid var(--moss-500);
}

.page-contact .contact-collage__figure .figure__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.62) brightness(0.86);
}

/* ---------- 邮件模板 ---------- */
.page-contact .contact-template {
  background: var(--paper-100);
  color: var(--ink-900);
  padding: clamp(48px, 7vw, 100px) 0;
}

.page-contact .contact-template__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
}

.page-contact .contact-template__side {
  display: flex;
  align-items: flex-start;
  gap: clamp(14px, 2vw, 24px);
}

.page-contact .contact-template__mark {
  flex: 0 0 auto;
  margin: 0;
  writing-mode: vertical-rl;
  font-size: 11px;
  letter-spacing: 0.4em;
  color: var(--moss-500);
  border-right: 1px solid var(--paper-300);
  padding-right: 10px;
}

.page-contact .contact-template__kicker {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--orange-500);
}

.page-contact .contact-template h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 3.6vw, 42px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  margin: 8px 0 14px;
  color: var(--ink-900);
}

.page-contact .contact-template__intro {
  margin: 0;
  max-width: 36ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--moss-500);
}

.page-contact .contact-template__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 32px);
  align-items: start;
}

.page-contact .contact-paper {
  position: relative;
  background: #FBF7EE;
  border: 1px solid var(--paper-300);
  padding: clamp(20px, 3vw, 40px);
  box-shadow:
    var(--stack-1) var(--stack-1) 0 rgba(44, 90, 75, 0.14),
    calc(var(--stack-2) * 2) calc(var(--stack-2) * 2) 0 rgba(44, 90, 75, 0.07);
}

.page-contact .contact-paper::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 34px;
  height: 34px;
  background: linear-gradient(225deg, var(--paper-300) 0 50%, rgba(10, 30, 24, 0.1) 50% 100%);
  clip-path: polygon(0 0, 100% 0, 100% 100%);
}

.page-contact .contact-paper__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--moss-500);
}

.page-contact .contact-paper__rows {
  margin: 0;
  padding: 0;
}

.page-contact .contact-paper__row {
  display: grid;
  grid-template-columns: 6.4em minmax(0, 1fr);
  gap: 10px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--paper-300);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.65;
}

.page-contact .contact-paper__row dt {
  color: var(--moss-500);
  letter-spacing: 0.04em;
}

.page-contact .contact-paper__row dd {
  margin: 0;
  color: var(--ink-900);
  overflow-wrap: anywhere;
}

.page-contact .contact-paper__foot {
  margin: 18px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--moss-500);
}

.page-contact .contact-paper__foot a {
  color: var(--ink-700);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.page-contact .contact-template__figure {
  margin: 0;
}

.page-contact .contact-template__figure .figure__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.62) brightness(0.97);
}

.page-contact .contact-template__figure .figure__caption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--moss-500);
}

/* ---------- 处理流程 ---------- */
.page-contact .contact-flow {
  padding: clamp(48px, 7vw, 96px) 0;
  border-top: 1px solid rgba(44, 90, 75, 0.6);
}

.page-contact .contact-section-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 3.6vw, 42px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 10px 0 14px;
  color: var(--paper-100);
}

.page-contact .contact-section-lead {
  max-width: 48ch;
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--gray-450);
}

.page-contact .contact-flow__track {
  list-style: none;
  margin: clamp(28px, 4vw, 46px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 26px);
}

.page-contact .contact-flow__step {
  position: relative;
  padding-left: 24px;
  border-left: 1px solid var(--moss-500);
}

.page-contact .contact-flow__step::after {
  content: "";
  position: absolute;
  top: 5px;
  left: -5px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--ink-900);
  border: 2px solid var(--cyan-400);
}

.page-contact .contact-flow__time {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--orange-500);
}

.page-contact .contact-flow__step h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 19px;
  letter-spacing: -0.01em;
  color: var(--paper-100);
}

.page-contact .contact-flow__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--gray-450);
}

/* ---------- 咨询分类 ---------- */
.page-contact .contact-topics {
  padding: clamp(48px, 7vw, 96px) 0;
  background: var(--ink-850);
}

.page-contact .contact-topics__list {
  margin-top: clamp(24px, 4vw, 40px);
  border-top: 1px solid rgba(44, 90, 75, 0.9);
}

.page-contact .contact-topic {
  border-bottom: 1px solid rgba(44, 90, 75, 0.9);
}

.page-contact .contact-topic summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: clamp(16px, 2.4vw, 24px) 0;
  cursor: pointer;
  list-style: none;
}

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

.page-contact .contact-topic__no {
  flex: 0 0 auto;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan-400);
}

.page-contact .contact-topic__main {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.page-contact .contact-topic__name {
  font-size: 17px;
  font-weight: 700;
  color: var(--paper-100);
}

.page-contact .contact-topic__hint {
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--gray-450);
}

.page-contact .contact-topic__marker {
  position: relative;
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  transition: transform 0.22s var(--ease);
}

.page-contact .contact-topic__marker::before,
.page-contact .contact-topic__marker::after {
  content: "";
  position: absolute;
  background: var(--cyan-400);
}

.page-contact .contact-topic__marker::before {
  top: 6px;
  left: 0;
  width: 14px;
  height: 2px;
}

.page-contact .contact-topic__marker::after {
  top: 0;
  left: 6px;
  width: 2px;
  height: 14px;
}

.page-contact .contact-topic[open] .contact-topic__marker {
  transform: rotate(45deg);
}

.page-contact .contact-topic[open] summary {
  background: var(--ink-700);
}

.page-contact .contact-topic[open] summary .contact-topic__name {
  color: var(--cyan-400);
}

.page-contact .contact-topic__body {
  padding: 0 0 clamp(18px, 2.4vw, 26px);
  max-width: 64ch;
}

.page-contact .contact-topic__body p {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--paper-300);
}

.page-contact .contact-link {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--cyan-400);
  text-decoration: none;
  border-bottom: 1px solid rgba(52, 240, 206, 0.4);
  padding-bottom: 2px;
  transition: border-color 0.18s var(--ease);
}

.page-contact .contact-link:hover,
.page-contact .contact-link:focus-visible {
  border-bottom-color: var(--cyan-400);
}

/* ---------- 合作 ---------- */
.page-contact .contact-coop {
  padding: clamp(48px, 7vw, 96px) 0;
}

.page-contact .contact-coop__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 56px);
}

.page-contact .contact-coop .contact-section-lead {
  margin-bottom: 14px;
  max-width: 44ch;
  color: var(--paper-300);
}

.page-contact .contact-coop__card {
  border-left: 3px solid var(--orange-500);
  background: var(--ink-700);
  padding: clamp(20px, 3vw, 30px);
}

.page-contact .contact-coop__card-title {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--orange-500);
}

.page-contact .contact-coop__subject {
  margin: 0 0 16px;
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--paper-100);
  overflow-wrap: anywhere;
}

.page-contact .contact-coop__list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-contact .contact-coop__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper-300);
}

.page-contact .contact-coop__list li::before {
  content: "";
  position: absolute;
  top: 0.72em;
  left: 0;
  width: 7px;
  height: 1px;
  background: var(--cyan-400);
}

/* ---------- 底部信息带 ---------- */
.page-contact .contact-strip {
  background: var(--paper-300);
  color: var(--ink-900);
  padding: clamp(22px, 3vw, 34px) 0;
}

.page-contact .contact-strip__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 18px 40px;
}

.page-contact .contact-strip__label {
  margin: 0 0 4px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--moss-500);
}

.page-contact .contact-strip__value {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink-900);
}

.page-contact .contact-strip__links {
  display: flex;
  gap: 20px;
  margin-left: auto;
}

.page-contact .contact-strip__links a {
  font-size: 13px;
  color: var(--ink-700);
  text-decoration: none;
  border-bottom: 1px solid rgba(18, 53, 41, 0.28);
  padding-bottom: 2px;
}

.page-contact .contact-strip__links a:hover {
  border-bottom-color: var(--ink-700);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .contact-coop__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }
}

@media (min-width: 860px) {
  .page-contact .contact-flow__track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
  }

  .page-contact .contact-flow__step {
    border-left: 0;
    padding: 40px 22px 0 0;
  }

  .page-contact .contact-flow__step::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--moss-500);
  }

  .page-contact .contact-flow__step::after {
    top: -4px;
    left: 0;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-collage {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 1fr);
    grid-template-rows: auto minmax(120px, 1fr) auto;
    grid-template-areas:
      "lead mail"
      "figure mail"
      "figure side";
    gap: clamp(18px, 2.2vw, 28px);
  }

  .page-contact .contact-collage__lead {
    padding-top: 6px;
    padding-bottom: 8px;
  }

  .page-contact .contact-collage__figure {
    min-height: 300px;
  }

  .page-contact .contact-template__inner {
    grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
    align-items: start;
  }
}

@media (min-width: 1120px) {
  .page-contact .contact-template__body {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-card__value,
  .page-contact .contact-link,
  .page-contact .contact-topic__marker {
    transition: none;
  }
}
<<<END>>>