.page-contact {
  --contact-line: var(--grid);
  --contact-gap: 16px;
  --contact-ease: 140ms var(--ease);
}

.page-contact .contact-hero {
  padding: 36px 0 clamp(56px, 8vw, 88px);
  border-bottom: 1px solid var(--contact-line);
}

.page-contact .contact-hero .breadcrumbs {
  margin-bottom: clamp(36px, 6vw, 56px);
}

.page-contact .contact-hero__eyebrow {
  color: var(--signal);
  margin: 0;
}

.page-contact .contact-hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(40px, 7vw, 104px);
  line-height: 0.94;
  letter-spacing: -0.025em;
  color: var(--fog);
  margin: 18px 0 24px;
  word-break: break-word;
}

.page-contact .contact-hero__accent {
  display: block;
  color: var(--signal);
}

.page-contact .contact-hero__lede {
  max-width: 34em;
  margin: 0;
  font-size: 17px;
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.page-contact .contact-section {
  padding: clamp(56px, 8vw, 96px) 0;
  border-bottom: 1px solid var(--contact-line);
}

.page-contact .contact-section:last-of-type {
  border-bottom: 0;
}

.page-contact .contact-section .section__desc {
  max-width: 36em;
  color: var(--mist);
  line-height: 1.8;
}

/* ---------- 01 联系方式：三块展签式信息牌 ---------- */

.page-contact .channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-gap);
  margin-top: clamp(32px, 5vw, 48px);
}

.page-contact .info-plate {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 28px 24px 26px;
  background: var(--stand);
  border: 1px solid var(--contact-line);
  border-left: 3px solid transparent;
  transition: border-color var(--contact-ease), background-color var(--contact-ease);
}

.page-contact .info-plate:hover,
.page-contact .info-plate:focus-within {
  border-color: var(--signal);
  background: var(--relay);
}

.page-contact .info-plate__index {
  display: block;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mist);
  margin-bottom: 22px;
}

.page-contact .info-plate__label {
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--fog);
  margin: 0 0 14px;
}

.page-contact .info-plate__value {
  display: block;
  font-family: var(--font-data);
  font-size: clamp(18px, 3.4vw, 22px);
  line-height: 1.4;
  color: var(--fog);
  padding-bottom: 6px;
  border-bottom: 1px solid var(--contact-line);
  overflow-wrap: anywhere;
  transition: border-color var(--contact-ease), color var(--contact-ease);
}

.page-contact .info-plate__value--text {
  font-family: var(--font-body);
  font-size: clamp(16px, 3vw, 19px);
  line-height: 1.6;
}

.page-contact .info-plate:hover .info-plate__value {
  border-bottom-color: var(--signal);
  color: var(--signal);
}

.page-contact .info-plate__note {
  margin: 16px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .channel-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid var(--contact-line);
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

/* ---------- 02 按事项分流 ---------- */

.page-contact .path-list {
  margin-top: clamp(32px, 5vw, 48px);
  border-top: 1px solid var(--contact-line);
}

.page-contact .path-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  padding: 26px 0;
  border-bottom: 1px solid var(--contact-line);
  transition: background-color var(--contact-ease);
}

.page-contact .path-item__num {
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--signal);
}

.page-contact .path-item__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(21px, 3.4vw, 27px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--fog);
  margin: 0 0 10px;
}

.page-contact .path-item__desc {
  margin: 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .path-item__side-label {
  display: block;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mist);
  margin-bottom: 12px;
}

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

.page-contact .path-item__tags li {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  font-size: 13px;
  line-height: 1.4;
  color: var(--fog);
  background: rgba(22, 34, 74, 0.72);
  border: 1px solid var(--contact-line);
  transition: border-color var(--contact-ease), color var(--contact-ease);
}

.page-contact .path-item:hover .path-item__tags li {
  border-color: var(--grid);
}

.page-contact .path-item__tags li:hover {
  border-color: var(--signal);
  color: var(--signal);
}

/* ---------- 03 合作方向：手风琴 ---------- */

.page-contact .coop-list {
  margin-top: clamp(32px, 5vw, 48px);
  border-top: 1px solid var(--contact-line);
}

.page-contact .coop-item {
  border-bottom: 1px solid var(--contact-line);
}

.page-contact .coop-item__head {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) 20px;
  align-items: center;
  gap: 16px;
  padding: 22px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-contact .coop-item__head::marker {
  content: "";
}

.page-contact .coop-item__index {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--mist);
  transition: color var(--contact-ease);
}

.page-contact .coop-item__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(19px, 3vw, 25px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--fog);
  transition: color var(--contact-ease);
}

.page-contact .coop-item__plus {
  position: relative;
  width: 16px;
  height: 16px;
  justify-self: end;
}

.page-contact .coop-item__plus::before,
.page-contact .coop-item__plus::after {
  content: "";
  position: absolute;
  background: var(--mist);
  transition: transform 160ms var(--ease), background-color var(--contact-ease);
}

.page-contact .coop-item__plus::before {
  left: 0;
  top: 7px;
  width: 16px;
  height: 1px;
}

.page-contact .coop-item__plus::after {
  left: 7px;
  top: 0;
  width: 1px;
  height: 16px;
}

.page-contact .coop-item[open] .coop-item__plus::after {
  transform: scaleY(0);
}

.page-contact .coop-item__head:hover .coop-item__index,
.page-contact .coop-item__head:hover .coop-item__title {
  color: var(--signal);
}

.page-contact .coop-item__head:hover .coop-item__plus::before,
.page-contact .coop-item__head:hover .coop-item__plus::after {
  background: var(--signal);
}

.page-contact .coop-item[open] .coop-item__index {
  color: var(--signal);
}

.page-contact .coop-item__body {
  padding: 0 0 28px;
}

.page-contact .coop-item__body p {
  margin: 0;
  max-width: 38em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 04 在线时段 ---------- */

.page-contact .schedule-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-top: clamp(32px, 5vw, 48px);
}

.page-contact .schedule-panel {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.page-contact .plate {
  background: var(--stand);
  border: 1px solid var(--contact-line);
  padding: 18px 20px;
  transition: border-color var(--contact-ease);
}

.page-contact .plate:hover {
  border-color: var(--signal);
}

.page-contact .plate__label {
  display: block;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mist);
  margin-bottom: 8px;
}

.page-contact .plate__value {
  font-family: var(--font-data);
  font-size: clamp(20px, 3.6vw, 26px);
  letter-spacing: -0.01em;
  color: var(--fog);
}

.page-contact .schedule-note {
  margin: 24px 0 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--mist);
}

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

/* ---------- 05 咨询前准备 ---------- */

.page-contact .prep-list {
  list-style: none;
  margin: clamp(32px, 5vw, 48px) 0 0;
  padding: 0;
  border-top: 1px solid var(--contact-line);
  counter-reset: prep;
}

.page-contact .prep-item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 16px;
  padding: 22px 0;
  border-bottom: 1px solid var(--contact-line);
}

.page-contact .prep-item__num {
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--signal);
  padding-top: 3px;
}

.page-contact .prep-item__label {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--fog);
}

.page-contact .prep-item__note {
  margin: 0;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 06 关于频道 ---------- */

.page-contact .about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  margin-top: clamp(32px, 5vw, 48px);
}

.page-contact .about-copy .prose {
  margin: 0 0 20px;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .about-facts {
  margin: 32px 0 0;
  padding: 0;
  border-top: 1px solid var(--contact-line);
}

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

.page-contact .about-facts__row dt {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-contact .about-facts__row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--fog);
}

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

/* ---------- 图片容器微调 ---------- */

.page-contact .figure__media {
  overflow: hidden;
  border: 1px solid var(--contact-line);
  background: var(--relay);
}

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

.page-contact .figure__caption {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-top: 14px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .figure__index {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--signal);
  flex: none;
  padding-top: 3px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-contact .prep-item {
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 24px;
  }

  .page-contact .about-facts__row {
    grid-template-columns: 160px minmax(0, 1fr);
    align-items: baseline;
    gap: 20px;
  }
}

@media (min-width: 900px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1px;
    background: var(--contact-line);
    border: 1px solid var(--contact-line);
  }

  .page-contact .info-plate {
    border: 0;
    border-left: 3px solid transparent;
  }

  .page-contact .info-plate:hover,
  .page-contact .info-plate:focus-within {
    border-left-color: var(--signal);
    border-top-color: transparent;
    border-right-color: transparent;
    border-bottom-color: transparent;
  }

  .page-contact .path-item {
    grid-template-columns: 56px minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 24px 32px;
    align-items: start;
    padding: 30px 0;
  }

  .page-contact .coop-item__head {
    grid-template-columns: 72px minmax(0, 1fr) 20px;
    padding: 26px 0;
  }

  .page-contact .coop-item__body {
    padding-left: 72px;
  }

  .page-contact .schedule-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    gap: 48px;
    align-items: start;
  }

  .page-contact .about-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 56px;
    align-items: start;
  }
}

@media (min-width: 1180px) {
  .page-contact .contact-hero {
    padding-top: 48px;
  }

  .page-contact .schedule-grid {
    gap: 72px;
  }
}

@media (max-width: 480px) {
  .page-contact .plate__value,
  .page-contact .info-plate__value {
    font-size: 17px;
  }

  .page-contact .path-item__tags li {
    font-size: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .info-plate,
  .page-contact .info-plate__value,
  .page-contact .coop-item__index,
  .page-contact .coop-item__title,
  .page-contact .coop-item__plus::before,
  .page-contact .coop-item__plus::after,
  .page-contact .plate,
  .page-contact .path-item__tags li {
    transition: none;
  }
}