.page-contact {
  --pc-rule: rgba(154, 174, 194, 0.22);
  --pc-rule-soft: rgba(154, 174, 194, 0.12);
  --pc-gap: 18px;
  --pc-card-pad: 24px;
  padding-bottom: 24px;
}

/* 面包屑 */
.page-contact .breadcrumb {
  padding: 22px 0 0;
  font-size: 13px;
}

.page-contact .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--slate-300);
}

.page-contact .breadcrumb__list li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--slate-300);
  opacity: 0.6;
}

.page-contact .breadcrumb__list a {
  color: var(--cyan-400);
  text-decoration: none;
}

.page-contact .breadcrumb__list a:hover,
.page-contact .breadcrumb__list a:focus-visible {
  text-decoration: underline;
}

/* 首屏 */
.page-contact .contact-hero {
  padding-top: 30px;
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: 26px;
}

.page-contact .coord {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mint-300);
  margin: 0 0 10px;
}

.page-contact h1 {
  font-family: var(--font-display);
  font-size: clamp(36px, 9vw, 78px);
  line-height: 1.02;
  letter-spacing: -0.01em;
  margin: 0 0 18px;
  color: var(--paper-100);
}

.page-contact .lede {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text-body);
}

.page-contact .contact-hero__aside {
  background: var(--ink-700);
  border: 1px solid var(--pc-rule);
  border-left: 3px solid var(--cyan-400);
  border-radius: var(--radius-lg);
  padding: 22px 22px 24px;
}

.page-contact .contact-hero__aside-title {
  margin: 0 0 14px;
  font-size: 15px;
  font-weight: 700;
  color: var(--paper-100);
}

.page-contact .contact-hero__aside-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-hero__aside-list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-body);
}

.page-contact .contact-hero__aside-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan-400);
}

.page-contact .contact-hero__aside-list a {
  color: var(--cyan-400);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 224, 207, 0.4);
}

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

/* 章节通用间距 */
.page-contact .section {
  padding: 54px 0 0;
}

.page-contact .section-head {
  max-width: 640px;
}

.page-contact .section-title {
  font-family: var(--font-display);
  font-size: clamp(26px, 5vw, 40px);
  line-height: 1.22;
  letter-spacing: -0.005em;
  margin: 0 0 14px;
  color: var(--paper-100);
}

/* 联系渠道图 */
.page-contact .contact-figure {
  margin: 28px 0 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--ink-800);
}

.page-contact .media-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* 三张联系卡 */
.page-contact .contact-cards {
  display: grid;
  gap: var(--pc-gap);
  margin-top: 26px;
}

.page-contact .contact-card {
  position: relative;
  overflow: hidden;
  display: grid;
  gap: 14px;
  background: var(--ink-800);
  border: 1px solid var(--pc-rule);
  border-radius: var(--radius-lg);
  padding: var(--pc-card-pad);
}

.page-contact .contact-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: var(--slate-300);
  opacity: 0.45;
}

.page-contact .contact-card--mail::before,
.page-contact .contact-card--phone::before {
  background: var(--orange-500);
  opacity: 1;
}

.page-contact .contact-card__head {
  display: flex;
  align-items: center;
  gap: 14px;
}

.page-contact .contact-card__icon {
  flex: none;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-pill);
  border: 1px solid var(--pc-rule);
  background: var(--ink-900);
  color: var(--slate-300);
}

.page-contact .contact-card--mail .contact-card__icon,
.page-contact .contact-card--phone .contact-card__icon {
  color: var(--orange-500);
  border-color: rgba(255, 138, 61, 0.5);
}

.page-contact .contact-card__icon svg {
  width: 22px;
  height: 22px;
  display: block;
}

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

.page-contact .contact-card__tag {
  display: inline-block;
  margin: 0 0 6px;
  padding: 3px 10px;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--mint-300);
  border: 1px solid rgba(155, 212, 188, 0.45);
  border-radius: var(--radius-pill);
}

.page-contact .contact-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 24px;
  line-height: 1.2;
  color: var(--paper-100);
}

.page-contact .contact-card__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(16px, 3.6vw, 21px);
  line-height: 1.55;
  color: var(--paper-100);
  word-break: break-word;
}

.page-contact .contact-card__value--plain {
  font-family: var(--font-body);
  font-size: 16px;
  color: var(--paper-100);
}

.page-contact .contact-card__note {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--slate-300);
}

/* 受理范围 */
.page-contact .scope-list {
  display: grid;
  gap: 16px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .scope-item {
  background: var(--ink-700);
  border-left: 3px solid var(--cyan-400);
  border-radius: var(--radius-md);
  padding: 20px 20px 22px;
}

.page-contact .scope-item__index {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--cyan-400);
}

.page-contact .scope-item h3 {
  margin: 8px 0 8px;
  font-size: 19px;
  line-height: 1.35;
  color: var(--paper-100);
}

.page-contact .scope-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-body);
}

/* 来信清单 */
.page-contact .prep-list {
  display: grid;
  gap: 14px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .prep-item {
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 14px;
  align-items: start;
  background: var(--paper-100);
  border-radius: var(--radius-md);
  padding: 18px 20px;
}

.page-contact .prep-item__num {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--ink-900);
  color: var(--cyan-400);
  font-family: var(--font-mono);
  font-size: 14px;
}

.page-contact .prep-item__body {
  min-width: 0;
}

.page-contact .prep-item__title {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink-900);
}

.page-contact .prep-item__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-700);
}

.page-contact .prep-sample {
  margin-top: 22px;
  background: var(--ink-900);
  border: 1px dashed rgba(63, 224, 207, 0.5);
  border-radius: var(--radius-md);
  padding: 20px;
}

.page-contact .prep-sample__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mint-300);
}

.page-contact .prep-sample__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--paper-100);
}

/* 处理路径 */
.page-contact .flow {
  display: grid;
  gap: 20px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .flow-step {
  position: relative;
}

.page-contact .flow-step__num {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  margin-bottom: 14px;
  border-radius: 50%;
  border: 2px solid var(--cyan-400);
  background: var(--ink-900);
  color: var(--cyan-400);
  font-family: var(--font-mono);
  font-size: 15px;
}

.page-contact .flow-step__title {
  margin: 0 0 8px;
  font-size: 18px;
  color: var(--paper-100);
}

.page-contact .flow-step__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--slate-300);
}

/* 内容合作 */
.page-contact .coop-panel {
  display: grid;
  gap: 26px;
  background: var(--ink-700);
  border: 1px solid var(--pc-rule);
  border-radius: var(--radius-lg);
  padding: 28px 24px 30px;
  margin-top: 8px;
}

.page-contact .coop-panel__lede {
  margin: 0 0 20px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text-body);
}

.page-contact .coop-list {
  display: grid;
  gap: 14px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.page-contact .coop-list li {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-body);
  padding-left: 18px;
  position: relative;
}

.page-contact .coop-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 2px;
  background: var(--mint-300);
}

.page-contact .coop-list__key {
  display: inline-block;
  margin-right: 8px;
  padding: 2px 9px;
  border-radius: var(--radius-pill);
  background: rgba(155, 212, 188, 0.16);
  color: var(--mint-300);
  font-size: 13px;
}

.page-contact .coop-panel__note {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--slate-300);
  border-top: 1px dashed var(--pc-rule);
  padding-top: 18px;
}

.page-contact .coop-panel__side {
  background: var(--ink-900);
  border-radius: var(--radius-md);
  padding: 22px 20px 24px;
  align-self: start;
}

.page-contact .coop-stat__num {
  margin: 0;
  font-family: var(--font-display);
  font-size: 64px;
  line-height: 1;
  color: var(--orange-500);
}

.page-contact .coop-stat__label {
  margin: 8px 0 12px;
  font-size: 15px;
  color: var(--paper-100);
}

.page-contact .coop-stat__note {
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--slate-300);
}

.page-contact .coop-link {
  display: inline-block;
  font-size: 14px;
  color: var(--cyan-400);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 224, 207, 0.45);
  padding-bottom: 2px;
}

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

/* 属地信息 */
.page-contact .geo-grid {
  display: grid;
  gap: 28px;
  align-items: start;
}

.page-contact .geo-list {
  margin: 24px 0 0;
  display: grid;
  gap: 0;
}

.page-contact .geo-line {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px dashed var(--pc-rule);
}

.page-contact .geo-line dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--slate-300);
}

.page-contact .geo-line dd {
  margin: 0;
  font-size: 16px;
  line-height: 1.7;
  color: var(--paper-100);
  word-break: break-word;
}

.page-contact .geo-figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--ink-800);
}

/* 延伸链接 */
.page-contact .contact-links {
  padding-bottom: 12px;
}

.page-contact .contact-links__list {
  display: grid;
  gap: 12px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-links__list a {
  display: block;
  padding: 15px 18px;
  background: var(--ink-800);
  border: 1px solid var(--pc-rule-soft);
  border-radius: var(--radius-md);
  color: var(--text-body);
  font-size: 15px;
  text-decoration: none;
  transition: border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.page-contact .contact-links__list a:hover,
.page-contact .contact-links__list a:focus-visible {
  border-color: rgba(63, 224, 207, 0.55);
  color: var(--paper-100);
  transform: translateX(4px);
}

/* 焦点态 */
.page-contact a:focus-visible {
  outline: 2px solid var(--orange-500);
  outline-offset: 3px;
  border-radius: 4px;
}

/* 平板及以上 */
@media (min-width: 720px) {
  .page-contact .contact-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }

  .page-contact .contact-card--post {
    grid-column: 1 / -1;
  }

  .page-contact .prep-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-contact .flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px;
  }

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

/* 桌面 */
@media (min-width: 960px) {
  .page-contact {
    --pc-card-pad: 30px;
  }

  .page-contact .contact-hero {
    padding-top: 48px;
  }

  .page-contact .contact-hero__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 40px;
    align-items: end;
  }

  .page-contact .contact-hero__lead {
    grid-column: 1 / span 7;
  }

  .page-contact .contact-hero__aside {
    grid-column: 9 / span 4;
  }

  .page-contact .section {
    padding-top: 72px;
  }

  .page-contact .contact-cards {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 24px;
  }

  .page-contact .contact-card--mail {
    grid-column: 1 / span 7;
  }

  .page-contact .contact-card--phone {
    grid-column: 8 / span 5;
    margin-top: 34px;
  }

  .page-contact .contact-card--post {
    grid-column: 3 / span 8;
    grid-row: 2;
  }

  .page-contact .scope-list {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 20px;
  }

  .page-contact .scope-item:nth-child(1) {
    grid-column: span 5;
  }

  .page-contact .scope-item:nth-child(2) {
    grid-column: span 4;
  }

  .page-contact .scope-item:nth-child(3) {
    grid-column: span 3;
  }

  .page-contact .scope-item:nth-child(4) {
    grid-column: span 6;
  }

  .page-contact .scope-item:nth-child(5) {
    grid-column: span 6;
  }

  .page-contact .prep-list {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .page-contact .prep-item:nth-child(1) {
    grid-column: span 7;
  }

  .page-contact .prep-item:nth-child(2) {
    grid-column: span 5;
  }

  .page-contact .prep-item:nth-child(3) {
    grid-column: span 5;
  }

  .page-contact .prep-item:nth-child(4) {
    grid-column: span 7;
  }

  .page-contact .flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 24px;
  }

  .page-contact .flow-step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 20px;
    left: 54px;
    right: -24px;
    border-top: 2px dashed rgba(63, 224, 207, 0.35);
  }

  .page-contact .coop-panel {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    gap: 40px;
    padding: 40px 38px 42px;
  }

  .page-contact .geo-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 44px;
    align-items: center;
  }

  .page-contact .contact-links__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* 动效降级 */
@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-links__list a {
    transition: none;
  }

  .page-contact .contact-links__list a:hover,
  .page-contact .contact-links__list a:focus-visible {
    transform: none;
  }
}
<<<END>>>