.page-contact {
  --fc-line: rgba(157, 179, 170, .16);
  --fc-line-strong: rgba(157, 179, 170, .30);
  --fc-cyan-line: rgba(18, 224, 200, .42);
  --fc-gap: clamp(18px, 3.4vw, 36px);
  --fc-block: clamp(52px, 8vw, 112px);
  background: var(--ink-950);
  color: var(--paper);
}

.page-contact .section {
  padding-block: var(--fc-block);
}

/* ---------- 面包屑 ---------- */
.page-contact .crumbs {
  padding-top: clamp(26px, 5vw, 52px);
}
.page-contact .crumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-contact .crumbs__link {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: .14em;
  text-decoration: none;
}
.page-contact .crumbs__link[aria-current="page"] {
  color: var(--cyan);
}
.page-contact .crumbs__item a.crumbs__link:hover {
  color: var(--cyan-soft);
}
.page-contact .crumbs__sep {
  color: rgba(157, 179, 170, .38);
  font-size: 12px;
}

/* ---------- 首屏 ---------- */
.page-contact .fc-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 5vw, 56px);
  align-items: center;
  margin-top: clamp(22px, 4vw, 40px);
}
.page-contact .fc-hero__copy {
  display: grid;
  gap: clamp(16px, 2.4vw, 26px);
  justify-items: start;
}
.page-contact .fc-hero__copy h1 {
  margin: 0;
}
.page-contact .fc-hero__copy .lede {
  max-width: 46ch;
  margin: 0;
  color: var(--muted);
}
.page-contact .fc-hero__media {
  margin: 0;
}
.page-contact .fc-hero__media img,
.page-contact .fc-hours__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

/* ---------- 反馈类型分段 ---------- */
.page-contact .fc-tabs {
  margin-top: clamp(26px, 4vw, 46px);
}
.page-contact .fc-tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin: 0 0 clamp(22px, 3.4vw, 40px);
  padding: 0;
  border-bottom: 1px solid var(--fc-line);
}
.page-contact .fc-tabs__list .tabs__tab {
  appearance: none;
  background: transparent;
  border: 0;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  padding: 14px 16px;
  color: var(--muted);
  font-family: var(--font-body);
  font-size: clamp(14px, 1.6vw, 16px);
  font-weight: 500;
  letter-spacing: .04em;
  cursor: pointer;
  transition: color .22s var(--ease), border-color .22s var(--ease);
}
.page-contact .fc-tabs__list .tabs__tab:hover {
  color: var(--paper);
}
.page-contact .fc-tabs__list .tabs__tab[aria-selected="true"] {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}
.page-contact .fc-tabs__list .tabs__tab:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-contact .fc-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 34px);
  align-items: start;
}
.page-contact .fc-panel[hidden] {
  display: none;
}
.page-contact .fc-panel__col {
  display: grid;
  gap: 14px;
  align-content: start;
}
.page-contact .fc-panel__col h3 {
  margin: 0;
}
.page-contact .fc-panel__col .prose {
  margin: 0;
  color: var(--muted);
}
.page-contact .fc-panel__list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-contact .fc-panel__list li {
  position: relative;
  padding-left: 20px;
  color: var(--paper);
  font-size: 14.5px;
  line-height: 1.72;
}
.page-contact .fc-panel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 10px;
  height: 1px;
  background: var(--cyan);
}
.page-contact .fc-panel__foot {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 联系卡 ---------- */
.page-contact .fc-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2.4vw, 26px);
  margin-top: clamp(26px, 4vw, 44px);
}
.page-contact .fc-card {
  display: grid;
  gap: 12px;
  align-content: start;
  padding: clamp(20px, 2.6vw, 30px);
  background: linear-gradient(158deg, rgba(14, 58, 44, .74), rgba(4, 20, 15, .92));
  border: 1px solid var(--fc-line);
}
.page-contact .fc-card--accent {
  border-color: var(--fc-cyan-line);
}
.page-contact .fc-card .card__meta {
  margin: 0;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.page-contact .fc-card__value {
  margin: 0;
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 600;
  line-height: 1.45;
  color: var(--paper);
  word-break: break-word;
}
.page-contact .fc-card__value--mono {
  font-family: var(--font-num);
  font-size: clamp(13.5px, 1.65vw, 16px);
  letter-spacing: .01em;
  color: var(--cyan);
}
.page-contact .fc-card__value--addr {
  font-size: clamp(15px, 1.6vw, 17px);
  font-weight: 500;
}
.page-contact .fc-card__note {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}
.page-contact .copy-btn {
  justify-self: start;
  margin-top: 4px;
  appearance: none;
  background: transparent;
  border: 1px solid var(--fc-line-strong);
  border-radius: var(--radius);
  padding: 8px 18px;
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 13px;
  letter-spacing: .08em;
  cursor: pointer;
  transition: border-color .2s var(--ease), color .2s var(--ease), background .2s var(--ease);
}
.page-contact .copy-btn:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}
.page-contact .copy-btn:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}
.page-contact .copy-btn[data-copied] {
  border-color: var(--cyan);
  background: var(--cyan);
  color: var(--ink-950);
}

/* ---------- 准备事项 ---------- */
.page-contact .fc-prep__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4.5vw, 56px);
  align-items: start;
}
.page-contact .fc-prep__head {
  display: grid;
  gap: 16px;
  align-content: start;
}
.page-contact .fc-prep__head .prose {
  margin: 0;
  color: var(--muted);
}
.page-contact .fc-prep__link {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}
.page-contact .fc-checklist {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--fc-line);
}
.page-contact .fc-checklist__item {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: clamp(12px, 2vw, 22px);
  align-items: start;
  padding: clamp(16px, 2.3vw, 26px) 0;
  border-bottom: 1px solid var(--fc-line);
}
.page-contact .fc-checklist__no {
  display: block;
  padding-top: 5px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--cyan);
}
.page-contact .fc-checklist__item h3 {
  margin: 0 0 7px;
}
.page-contact .fc-checklist__item p {
  margin: 0;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.72;
}

/* ---------- 处理流程刻度 ---------- */
.page-contact .fc-rule {
  display: block;
  width: 100%;
  height: 24px;
  margin-top: clamp(24px, 3.6vw, 40px);
  color: var(--cyan);
}
.page-contact .fc-timeline {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vw, 34px);
  margin: clamp(18px, 2.6vw, 28px) 0 0;
  padding: 0;
  list-style: none;
}
.page-contact .fc-timeline__step {
  position: relative;
  padding-top: 24px;
  border-top: 1px solid var(--fc-line);
}
.page-contact .fc-timeline__step::before {
  content: "";
  position: absolute;
  top: -4px;
  left: 0;
  width: 7px;
  height: 7px;
  background: var(--cyan);
  transform: rotate(45deg);
  box-shadow: 0 0 0 4px rgba(18, 224, 200, .12);
}
.page-contact .fc-timeline__no {
  margin: 0 0 10px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--cyan-soft);
}
.page-contact .fc-timeline__step h3 {
  margin: 0 0 8px;
}
.page-contact .fc-timeline__step p {
  margin: 0;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.75;
}

/* ---------- 合作与引用 ---------- */
.page-contact .fc-partners__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2.4vw, 26px);
  margin-top: clamp(26px, 4vw, 44px);
}
.page-contact .fc-partner {
  padding: clamp(20px, 2.6vw, 30px);
  background: rgba(8, 36, 28, .55);
  border-left: 2px solid var(--fc-cyan-line);
}
.page-contact .fc-partner--quote {
  border-left-color: var(--yellow);
}
.page-contact .fc-partner h3 {
  margin: 0 0 10px;
}
.page-contact .fc-partner p {
  margin: 0;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.78;
}

/* ---------- 服务时间与范围 ---------- */
.page-contact .fc-hours {
  background: var(--paper);
  color: var(--charcoal);
}
.page-contact .fc-hours .index-label {
  color: var(--ink-700);
}
.page-contact .fc-hours h2 {
  color: var(--charcoal);
}
.page-contact .fc-hours__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4.5vw, 56px);
  align-items: start;
}
.page-contact .fc-hours__copy {
  display: grid;
  gap: 16px;
  align-content: start;
}
.page-contact .fc-hours__lead {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--charcoal);
}
.page-contact .fc-hours__list {
  display: grid;
  gap: 16px;
  margin: clamp(8px, 1.4vw, 14px) 0 0;
  padding: 0;
  list-style: none;
}
.page-contact .fc-hours__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--charcoal);
}
.page-contact .fc-hours__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 8px;
  height: 8px;
  border: 1px solid var(--ink-700);
  transform: rotate(45deg);
}
.page-contact .fc-hours__list strong {
  color: var(--ink-700);
  font-weight: 600;
}
.page-contact .fc-hours__media {
  margin: 0;
  border: 1px solid rgba(11, 26, 21, .16);
  box-shadow: var(--shadow);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .fc-tabs__list .tabs__tab {
    padding: 14px 24px;
  }
  .page-contact .fc-checklist__item {
    grid-template-columns: 64px minmax(0, 1fr);
  }
}

@media (min-width: 820px) {
  .page-contact .fc-panel {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 56px);
  }
  .page-contact .fc-partners__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-contact .fc-timeline {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(24px, 3.4vw, 44px);
  }
}

@media (min-width: 900px) {
  .page-contact .fc-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
  .page-contact .fc-hero__media {
    transform: translateY(-10px);
  }
  .page-contact .fc-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-contact .fc-prep__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
  .page-contact .fc-hours__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .copy-btn,
  .page-contact .fc-tabs__list .tabs__tab {
    transition: none;
  }
  .page-contact .fc-hero__media {
    transform: none;
  }
}