.page-contact {
  --contact-hair: rgba(199, 208, 204, 0.18);
  overflow-x: hidden;
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumbs {
  padding-top: 20px;
  padding-bottom: 4px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-top: 16px;
  padding-bottom: 64px;
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: 36px;
}

.page-contact .contact-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(30px, 7vw, 54px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--paper);
  margin: 12px 0 0;
  max-width: 16ch;
}

.page-contact .contact-hero .section__lead {
  max-width: 46ch;
  margin-top: 20px;
  color: var(--silver);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

/* 在线状态条 */
.page-contact .contact-status {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 14px;
  margin-top: 28px;
  padding: 14px 18px;
  background: var(--glass);
  border-left: 3px solid var(--cyan);
  border-radius: var(--radius);
}

.page-contact .contact-status[data-state="closed"] {
  border-left-color: var(--danger);
}

.page-contact .contact-status__lamp {
  width: 10px;
  height: 10px;
  flex: none;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(77, 240, 208, 0.18);
}

.page-contact .contact-status[data-state="closed"] .contact-status__lamp {
  background: var(--danger);
  box-shadow: 0 0 0 4px rgba(201, 74, 18, 0.22);
}

.page-contact .contact-status__label {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--silver);
}

.page-contact .contact-status__value {
  font-family: var(--font-data);
  font-size: 15px;
  color: var(--paper);
  margin-left: auto;
}

/* 首屏速览 */
.page-contact .contact-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px 24px;
  margin: 32px 0 0;
  padding-top: 24px;
  border-top: 1px solid var(--contact-hair);
}

.page-contact .contact-meta__item dt {
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--silver);
  margin-bottom: 6px;
}

.page-contact .contact-meta__item dd {
  font-family: var(--font-data);
  font-size: 15px;
  color: var(--paper);
  margin: 0;
}

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

.page-contact .contact-hero__figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 三个渠道 ---------- */
.page-contact .contact-channels {
  padding-top: 8px;
}

.page-contact .channel-grid {
  row-gap: 20px;
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 28px 24px;
  background: var(--ink-2);
  border-radius: var(--radius);
  transition: background var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-contact .channel-card:hover {
  background: var(--ink-3);
  transform: translateY(-2px);
}

.page-contact .channel-card:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-contact .channel-card--mail {
  border-top: 4px solid var(--orange);
}

.page-contact .channel-card__index {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
  margin: 0 0 12px;
}

.page-contact .channel-card__title {
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: 0.04em;
  color: var(--paper);
  margin: 0 0 14px;
}

.page-contact .channel-card__value,
.page-contact .channel-card__address {
  font-family: var(--font-data);
  font-size: clamp(15px, 4vw, 20px);
  line-height: 1.5;
  color: var(--orange-2);
  margin: 0 0 14px;
  word-break: break-word;
}

.page-contact .channel-card__address {
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 17px;
  letter-spacing: 0.02em;
}

.page-contact .channel-card .copy-btn {
  align-self: flex-start;
  margin-bottom: 18px;
}

.page-contact .channel-card__note {
  font-size: 14px;
  line-height: 1.75;
  color: var(--silver);
  margin: 0;
  max-width: 52ch;
}

.page-contact .channel-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .channel-card--wide {
  flex-direction: column;
  gap: 28px;
  padding: 0;
  background: transparent;
}

.page-contact .channel-card--wide:hover {
  background: transparent;
  transform: none;
}

.page-contact .channel-card__wide-body {
  padding: 28px 24px;
  background: var(--ink-2);
  border-left: 4px solid var(--cyan);
  border-radius: var(--radius);
}

.page-contact .channel-card__figure {
  margin: 0;
}

.page-contact .channel-card__figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 咨询准备 ---------- */
.page-contact .contact-prep {
  padding-top: 24px;
}

.page-contact .contact-prep__grid {
  display: grid;
  gap: 32px;
}

.page-contact .contact-prep__aside .prose {
  color: var(--silver);
  margin-top: 16px;
}

.page-contact .contact-prep__aside .note {
  margin-top: 20px;
}

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

.page-contact .prep-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  background: var(--glass);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--dur) var(--ease);
}

.page-contact .prep-item:hover {
  background: var(--glass-2);
}

.page-contact .prep-item__box {
  appearance: none;
  -webkit-appearance: none;
  position: relative;
  flex: none;
  width: 20px;
  height: 20px;
  margin: 3px 0 0;
  border: 2px solid var(--silver);
  border-radius: var(--radius);
  background: transparent;
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .prep-item__box:checked {
  background: var(--orange);
  border-color: var(--orange);
}

.page-contact .prep-item__box:checked::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border: solid var(--ink);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

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

.page-contact .prep-item__box:checked ~ .prep-item__text {
  color: var(--silver);
}

.page-contact .prep-item__text {
  font-size: 14px;
  line-height: 1.75;
  color: var(--paper);
}

.page-contact .prep-item__text strong {
  display: block;
  font-size: 15px;
  letter-spacing: 0.02em;
  color: var(--cyan);
  margin-bottom: 4px;
}

/* ---------- 合作与纠错 ---------- */
.page-contact .contact-partner {
  padding-top: 24px;
}

.page-contact .partner-grid {
  row-gap: 20px;
}

.page-contact .partner-card {
  padding: 26px 24px;
  background: var(--paper);
  color: var(--charcoal);
  border-radius: var(--radius);
  border-bottom: 4px solid var(--orange);
}

.page-contact .partner-card__title {
  font-family: var(--font-display);
  font-size: 19px;
  letter-spacing: 0.04em;
  color: var(--charcoal);
  margin: 0 0 14px;
}

.page-contact .partner-card__text {
  font-size: 14px;
  line-height: 1.8;
  color: #3A4744;
  margin: 0 0 18px;
}

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

.page-contact .partner-card__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  color: var(--charcoal);
}

.page-contact .partner-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 2px;
  background: var(--orange);
}

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

/* ---------- 备案与运营 ---------- */
.page-contact .contact-registry {
  padding-top: 24px;
  padding-bottom: 80px;
}

.page-contact .contact-registry__inner {
  display: grid;
  gap: 28px;
  padding: 32px 24px;
  background: var(--ink-2);
  border-top: 2px solid var(--orange);
  border-radius: var(--radius);
}

.page-contact .contact-registry__title {
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: 0.04em;
  color: var(--paper);
  margin: 10px 0 14px;
}

.page-contact .contact-registry__text {
  font-size: 14px;
  line-height: 1.8;
  color: var(--silver);
  margin: 0;
  max-width: 60ch;
}

.page-contact .contact-registry__facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 20px 24px;
}

.page-contact .registry-fact__label {
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--silver);
  margin: 0 0 8px;
}

.page-contact .registry-fact__value {
  font-family: var(--font-data);
  font-size: 15px;
  color: var(--cyan);
  margin: 0;
  word-break: break-word;
}

/* ---------- 中等屏 ---------- */
@media (min-width: 700px) {
  .page-contact .channel-card--wide {
    flex-direction: row;
    align-items: stretch;
    gap: 0;
  }

  .page-contact .channel-card__wide-body {
    flex: 1 1 52%;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .page-contact .channel-card__figure {
    flex: 1 1 48%;
  }

  .page-contact .contact-prep__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: 48px;
    align-items: start;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: 64px;
    align-items: center;
  }

  .page-contact .contact-registry__inner {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: 56px;
    padding: 48px 40px;
  }

  .page-contact .contact-status__value {
    margin-left: 0;
  }

  .page-contact .contact-status {
    flex-wrap: nowrap;
  }
}

@media (min-width: 1100px) {
  .page-contact .contact-prep__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: 72px;
  }
}

/* ---------- 减动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .prep-item,
  .page-contact .prep-item__box {
    transition: none;
  }

  .page-contact .channel-card:hover {
    transform: none;
  }
}