.page-contact {
  --pc-gap: clamp(18px, 3vw, 34px);
  --pc-pad: clamp(18px, 3.2vw, 30px);
  padding-bottom: clamp(44px, 7vw, 96px);
}

.page-contact .breadcrumbs {
  padding-top: clamp(16px, 3vw, 28px);
  padding-bottom: clamp(14px, 2.4vw, 22px);
}

/* ---------- 首屏分屏 ---------- */
.page-contact .contact-stage {
  padding-bottom: clamp(38px, 6vw, 74px);
}

.page-contact .contact-stage__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pc-gap);
  align-items: start;
}

.page-contact .contact-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  background: var(--ink-1);
  isolation: isolate;
}

.page-contact .contact-card__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .34;
  filter: saturate(.85) contrast(1.05);
}

.page-contact .contact-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(175deg, rgba(6, 17, 14, .48) 0%, rgba(6, 17, 14, .9) 58%, rgba(6, 17, 14, .97) 100%);
  pointer-events: none;
}

.page-contact .contact-card__body {
  position: relative;
  z-index: 1;
  padding: var(--pc-pad);
  display: grid;
  gap: clamp(16px, 2.4vw, 24px);
}

.page-contact .contact-card__kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .contact-card__kicker::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px var(--cyan-soft);
}

.page-contact .contact-card__block {
  display: grid;
  gap: 6px;
  padding-top: clamp(14px, 2vw, 20px);
  border-top: 1px solid rgba(43, 74, 65, .7);
}

.page-contact .contact-card__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--mute);
}

.page-contact .contact-card__mail {
  display: inline-block;
  font-size: clamp(17px, 3.6vw, 21px);
  font-weight: 600;
  line-height: 1.35;
  color: var(--cyan);
  text-decoration: none;
  overflow-wrap: anywhere;
  border-bottom: 1px solid transparent;
  transition: border-color .18s ease, color .18s ease;
}

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

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

.page-contact .contact-card__phone {
  font-size: clamp(20px, 4.6vw, 26px);
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--paper);
  text-decoration: none;
  transition: color .18s ease;
}

.page-contact .contact-card__phone:hover,
.page-contact .contact-card__phone:focus-visible {
  color: var(--amber);
}

.page-contact .contact-card__addr {
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--paper);
}

.page-contact .contact-card__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-top: clamp(14px, 2vw, 20px);
  border-top: 1px solid rgba(43, 74, 65, .7);
}

.page-contact .contact-card__icp {
  margin: 0;
  font-size: 12px;
  color: var(--mute);
}

.page-contact .contact-stage__intro {
  display: grid;
  gap: clamp(18px, 2.6vw, 28px);
  min-width: 0;
}

.page-contact .contact-stage__intro .display-title {
  margin: 0;
  font-size: clamp(30px, 5.6vw, 54px);
  line-height: 1.06;
  letter-spacing: .01em;
}

.page-contact .contact-stage__intro .lede {
  margin: 0;
  max-width: var(--measure);
}

/* ---------- 反馈类型 ---------- */
.page-contact .feedback__title,
.page-contact .prep__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(19px, 3vw, 24px);
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--paper);
}

.page-contact .feedback-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .feedback-item {
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: var(--ink-2);
  overflow: hidden;
  transition: border-color .18s ease, transform .18s ease;
}

.page-contact .feedback-item:hover {
  transform: translateY(-2px);
  border-color: var(--teal);
}

.page-contact .feedback-item[open] {
  border-color: rgba(255, 177, 61, .55);
}

.page-contact .feedback-item__summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 15px;
  cursor: pointer;
  list-style: none;
  border-left: 3px solid transparent;
}

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

.page-contact .feedback-item[open] .feedback-item__summary {
  border-left-color: var(--amber);
}

.page-contact .feedback-item__summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-contact .feedback-item__num {
  font-size: 12px;
  color: var(--teal);
  letter-spacing: .08em;
}

.page-contact .feedback-item__name {
  font-size: 15px;
  font-weight: 600;
  color: var(--paper);
  flex: 1 1 auto;
  min-width: 0;
}

.page-contact .feedback-item__summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--mute);
}

.page-contact .feedback-item[open] .feedback-item__summary::after {
  content: "−";
  color: var(--amber);
}

.page-contact .feedback-item__body {
  padding: 0 15px 15px 18px;
  display: grid;
  gap: 8px;
}

.page-contact .feedback-item__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper);
}

.page-contact .feedback-item__meta {
  color: var(--mute) !important;
  font-size: 13px !important;
}

/* ---------- 反馈前准备 ---------- */
.page-contact .prep {
  padding-top: clamp(18px, 2.6vw, 26px);
  border-top: 1px solid rgba(43, 74, 65, .7);
}

.page-contact .prep-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .prep-list__item {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 10px 12px;
  border-radius: var(--radius-s);
  background: rgba(16, 42, 34, .7);
  border-left: 2px solid var(--teal);
}

.page-contact .prep-list__key {
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .prep-list__note {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--paper);
}

/* ---------- 响应说明色带 ---------- */
.page-contact .response-band {
  padding-block: clamp(38px, 6vw, 78px);
  background:
    linear-gradient(118deg, var(--ink-1) 0%, var(--ink-2) 55%, rgba(14, 158, 134, .26) 100%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .response-band__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3.4vw, 44px);
  align-items: center;
}

.page-contact .response-band__media {
  margin: 0;
  border-radius: var(--radius-m);
  overflow: hidden;
  border: 1px solid var(--line);
}

.page-contact .response-band__media .media__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .response-band__media .media__caption {
  padding: 10px 14px;
  font-size: 12.5px;
  color: var(--mute);
  background: rgba(6, 17, 14, .72);
}

.page-contact .response-band__text {
  display: grid;
  gap: 12px;
  min-width: 0;
}

.page-contact .response-band__text .display-title {
  margin: 0;
  font-size: clamp(24px, 4vw, 36px);
  line-height: 1.14;
}

.page-contact .response-band__text .lede {
  margin: 0;
  max-width: var(--measure);
}

.page-contact .response-list {
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .response-list__item {
  display: grid;
  grid-template-columns: 12px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}

.page-contact .response-list__mark {
  width: 10px;
  height: 10px;
  margin-top: 6px;
  border-radius: 2px;
  background: var(--cyan);
  box-shadow: 0 0 0 4px var(--cyan-soft);
}

.page-contact .response-list__item:nth-child(2) .response-list__mark {
  background: var(--amber);
  box-shadow: 0 0 0 4px var(--amber-soft);
}

.page-contact .response-list__item:nth-child(3) .response-list__mark {
  background: var(--teal);
  box-shadow: 0 0 0 4px var(--cyan-soft);
}

.page-contact .response-list__title {
  margin: 0 0 4px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--paper);
}

.page-contact .response-list__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mute);
}

/* ---------- 合作与纠错 ---------- */
.page-contact .routes-split {
  padding-block: clamp(38px, 6vw, 76px);
}

.page-contact .routes-split__head,
.page-contact .pathways__head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-contact .routes-split__head .display-title,
.page-contact .pathways__head .display-title {
  margin: 0;
  font-size: clamp(24px, 4vw, 36px);
  line-height: 1.14;
}

.page-contact .pathways__head .lede {
  margin: 0;
  max-width: var(--measure);
}

.page-contact .split-card {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--line);
  border-left-width: 4px;
  border-radius: var(--radius-m);
  background: var(--ink-2);
  transition: transform .18s ease, border-color .18s ease;
}

.page-contact .split-card:hover {
  transform: translateY(-2px);
}

.page-contact .split-card--amber {
  border-left-color: var(--amber);
}

.page-contact .split-card--cyan {
  border-left-color: var(--cyan);
}

.page-contact .split-card__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--mute);
}

.page-contact .split-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(19px, 3vw, 24px);
  font-weight: 700;
  letter-spacing: .03em;
  color: var(--paper);
}

.page-contact .split-card__text {
  margin: 0 0 6px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--mute);
}

.page-contact .split-card .btn {
  justify-self: start;
  margin-top: 4px;
}

/* ---------- 常用去处 ---------- */
.page-contact .pathways {
  padding-bottom: clamp(6px, 1.4vw, 16px);
}

.page-contact .path-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-contact .path-item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr) 20px;
  gap: 10px;
  align-items: center;
  padding: clamp(14px, 2vw, 20px) 4px;
  border-top: 1px solid rgba(43, 74, 65, .7);
  transition: background-color .18s ease;
}

.page-contact .path-item:last-child {
  border-bottom: 1px solid rgba(43, 74, 65, .7);
}

.page-contact .path-item:hover {
  background: rgba(23, 230, 194, .05);
}

.page-contact .path-item__num {
  font-size: 13px;
  color: var(--teal);
  letter-spacing: .08em;
}

.page-contact .path-item__body {
  display: grid;
  gap: 4px;
  min-width: 0;
}

.page-contact .path-item__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(16px, 2.6vw, 20px);
  font-weight: 700;
  letter-spacing: .03em;
  line-height: 1.3;
}

.page-contact .path-item__link {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .18s ease, border-color .18s ease;
}

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

.page-contact .path-item__body p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--mute);
}

.page-contact .path-item__arrow {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--cyan);
  opacity: .6;
  transition: opacity .18s ease, transform .18s ease;
}

.page-contact .path-item:hover .path-item__arrow {
  opacity: 1;
  transform: translateX(3px);
}

/* ---------- 窄屏微调 ---------- */
@media (max-width: 559px) {
  .page-contact .contact-card__mail {
    font-size: 16px;
  }

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

  .page-contact .path-item {
    grid-template-columns: 30px minmax(0, 1fr);
  }

  .page-contact .path-item__arrow {
    display: none;
  }

  .page-contact .split-card .btn {
    justify-self: stretch;
    text-align: center;
  }
}

/* ---------- 桌面分栏 ---------- */
@media (min-width: 900px) {
  .page-contact .contact-stage__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(24px, 3.4vw, 52px);
  }

  .page-contact .contact-card {
    position: sticky;
    top: 96px;
  }

  .page-contact .response-band__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-contact .feedback-item,
  .page-contact .split-card,
  .page-contact .path-item__arrow {
    transition: none;
  }

  .page-contact .feedback-item:hover,
  .page-contact .split-card:hover {
    transform: none;
  }

  .page-contact .path-item:hover .path-item__arrow {
    transform: none;
  }
}