.page-contact {
  --pc-band: clamp(44px, 7vw, 92px);
  --pc-gap: clamp(20px, 3vw, 40px);
  background: var(--ink);
  color: var(--frost);
  overflow-x: clip;
}

.page-contact .crumbs {
  padding-top: 18px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
  padding-top: clamp(30px, 5vw, 56px);
  padding-bottom: clamp(36px, 5vw, 64px);
  border-bottom: var(--line);
}

.page-contact .contact-hero__title {
  margin: 12px 0 18px;
  font-size: clamp(34px, 7vw, 64px);
  line-height: 1.06;
  font-weight: 900;
  letter-spacing: -0.03em;
}

.page-contact .contact-hero__lead-text {
  max-width: 56ch;
  color: var(--muted);
}

.page-contact .contact-hero__aside {
  align-self: end;
  background: var(--ink-2);
  border: var(--line-strong);
  border-top: 4px solid var(--cyan);
  padding: 22px 22px 18px;
}

.page-contact .contact-hero__aside-label {
  margin: 0;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .contact-hero__big-row {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 8px 0 8px;
}

.page-contact .contact-hero__big {
  font-size: clamp(64px, 12vw, 108px);
  line-height: 0.82;
  color: var(--cyan);
}

.page-contact .contact-hero__unit {
  font-size: 20px;
  font-weight: 700;
  color: var(--frost);
}

.page-contact .contact-hero__aside-text {
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .contact-hero__ticks {
  display: flex;
  gap: 6px;
}

.page-contact .contact-hero__ticks span {
  flex: 1 1 0;
  height: 3px;
  background: var(--hair);
}

.page-contact .contact-hero__ticks span:nth-child(-n + 3) {
  background: var(--cyan);
}

/* ---------- 三个入口 ---------- */
.page-contact .contact-routes {
  padding-top: clamp(40px, 6vw, 78px);
}

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

.page-contact .route-cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(16px, 2vw, 24px);
  align-items: start;
}

.page-contact .route-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  background: var(--panel);
  border: var(--line-strong);
  padding: clamp(20px, 2.2vw, 28px);
  box-shadow: var(--shadow-hard);
}

.page-contact .route-card--primary {
  border-color: var(--violet);
  background-image: linear-gradient(180deg, rgba(139, 92, 246, 0.22), rgba(22, 35, 59, 0.96) 58%);
  box-shadow: var(--shadow-violet);
}

.page-contact .route-card__no {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--muted);
}

.page-contact .route-card__title {
  margin: 0;
  font-size: clamp(19px, 2.2vw, 23px);
  font-weight: 800;
  line-height: 1.3;
}

.page-contact .route-card__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .route-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .route-card__more {
  margin-top: auto;
  border-top: var(--line);
  padding-top: 12px;
}

.page-contact .route-card__more summary {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

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

.page-contact .route-card__more summary::after {
  content: "+";
  margin-left: auto;
  font-size: 16px;
  line-height: 1;
}

.page-contact .route-card__more[open] summary::after {
  content: "\2013";
}

.page-contact .route-card__list {
  margin: 12px 0 0;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--frost);
}

/* ---------- 联络档案 ---------- */
.page-contact .contact-channels {
  margin-top: clamp(48px, 8vw, 104px);
  background: var(--ink-2);
  border-top: var(--line);
  border-bottom: var(--line);
  padding: var(--pc-band) 0;
}

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

.page-contact .contact-channels__body .section__title {
  margin-bottom: clamp(18px, 2.4vw, 26px);
}

.page-contact .contact-list {
  margin: 0;
  border-top: var(--line);
}

.page-contact .contact-list__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 16px 0;
  border-bottom: var(--line);
}

.page-contact .contact-list__row dt {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-contact .contact-list__row dd {
  margin: 0;
  font-size: 16px;
  line-height: 1.6;
  overflow-wrap: anywhere;
}

.page-contact .mono-value {
  font-family: var(--mono);
  color: var(--cyan);
}

.page-contact .contact-channels__note {
  margin: clamp(20px, 2.6vw, 28px) 0 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

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

/* ---------- 反馈材料 ---------- */
.page-contact .contact-feedback {
  padding-top: var(--pc-band);
}

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

.page-contact .contact-feedback__text {
  margin: clamp(14px, 2vw, 20px) 0 0;
  max-width: 58ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .feedback-steps {
  list-style: none;
  margin: clamp(24px, 3vw, 36px) 0 0;
  padding: 0;
}

.page-contact .feedback-steps__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  padding: 18px 0;
  border-top: var(--line);
}

.page-contact .feedback-steps__item:last-child {
  border-bottom: var(--line);
}

.page-contact .feedback-steps__no {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
  padding-top: 4px;
}

.page-contact .feedback-steps__title {
  margin: 0 0 4px;
  font-size: 16px;
  font-weight: 700;
}

.page-contact .feedback-steps__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

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

/* ---------- 机构对接流程 ---------- */
.page-contact .contact-handoff {
  padding-top: var(--pc-band);
}

.page-contact .contact-handoff .section__head {
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-contact .handoff__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 2.4vw, 28px);
}

.page-contact .handoff__item::before {
  content: "";
  display: block;
  height: 4px;
  background: linear-gradient(90deg, var(--cyan), var(--violet));
  margin-bottom: 16px;
}

.page-contact .handoff__item:nth-child(1)::before {
  width: 25%;
}

.page-contact .handoff__item:nth-child(2)::before {
  width: 50%;
}

.page-contact .handoff__item:nth-child(3)::before {
  width: 75%;
}

.page-contact .handoff__item:nth-child(4)::before {
  width: 100%;
}

.page-contact .handoff__step {
  border-left: var(--line);
  padding-left: 14px;
}

.page-contact .handoff__summary {
  display: flex;
  align-items: baseline;
  gap: 10px;
  list-style: none;
  cursor: pointer;
}

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

.page-contact .handoff__no {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-contact .handoff__title {
  font-size: 17px;
  font-weight: 800;
  color: var(--frost);
}

.page-contact .handoff__step[open] .handoff__title {
  color: var(--cyan);
}

.page-contact .handoff__text {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 回访节奏 ---------- */
.page-contact .contact-followup {
  padding-top: clamp(56px, 8vw, 118px);
  padding-bottom: clamp(20px, 3vw, 40px);
}

.page-contact .contact-followup__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 44px);
}

.page-contact .contact-followup__body p {
  margin: 0 0 18px;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.9;
  color: var(--frost);
}

.page-contact .contact-followup__body p:last-child {
  margin-bottom: 0;
  color: var(--muted);
}

/* ---------- 相关页面 ---------- */
.page-contact .contact-links {
  padding-top: clamp(40px, 6vw, 80px);
  padding-bottom: clamp(48px, 7vw, 96px);
}

.page-contact .contact-links__title {
  margin: 0 0 clamp(18px, 2.4vw, 26px);
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 800;
}

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

.page-contact .contact-links__item {
  border-bottom: var(--line);
}

.page-contact .contact-links__link {
  display: block;
  padding: 15px 0;
  font-size: 15px;
  color: var(--frost);
  text-decoration: none;
  transition: color 150ms var(--ease), padding-left 150ms var(--ease);
}

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

/* ---------- 媒体 ---------- */
.page-contact .media__frame {
  border: var(--line-strong);
  background: var(--panel);
  overflow: hidden;
}

.page-contact .media__frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: grayscale(0.25) contrast(1.06) brightness(0.86);
}

.page-contact .media__caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .contact-list__row {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }

  .page-contact .contact-list__row dt {
    padding-top: 6px;
  }

  .page-contact .contact-links__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(20px, 3vw, 40px);
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: end;
  }

  .page-contact .route-cards {
    grid-template-columns: 1.42fr 1fr 0.84fr;
  }

  .page-contact .route-card:nth-child(2) {
    margin-top: 28px;
  }

  .page-contact .route-card:nth-child(3) {
    margin-top: 56px;
  }

  .page-contact .contact-channels__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.95fr);
  }

  .page-contact .contact-feedback__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  }

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

  .page-contact .contact-followup__grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-links__link {
    transition: none;
  }
}