.page-contact {
  --pc-rule: rgba(10, 27, 46, 0.14);
  --pc-soft: #E9EEF4;
  --pc-card: #FBF9F4;
  background: var(--paper);
  color: var(--body-ink);
  padding-bottom: 72px;
}

.page-contact .breadcrumbs {
  padding-top: 18px;
  padding-bottom: 6px;
}

/* ---------- 首屏框景 ---------- */
.page-contact .hero {
  padding-top: 10px;
}

.page-contact .hero__frame {
  position: relative;
  padding: 26px 18px 22px;
  border: 1px solid var(--pc-rule);
  border-radius: 8px;
  background-color: var(--paper);
  background-image:
    linear-gradient(to right, rgba(10, 27, 46, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(10, 27, 46, 0.045) 1px, transparent 1px);
  background-size: 24px 24px;
}

.page-contact .hero__frame::before,
.page-contact .hero__frame::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border: 2px solid var(--amber);
  pointer-events: none;
}

.page-contact .hero__frame::before {
  top: -2px;
  left: -2px;
  border-right: 0;
  border-bottom: 0;
}

.page-contact .hero__frame::after {
  right: -2px;
  bottom: -2px;
  border-top: 0;
  border-left: 0;
}

.page-contact .hero__intro h1 {
  margin: 10px 0 0;
  font-size: clamp(28px, 8vw, 50px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--ink);
}

.page-contact .hero__intro .lede {
  margin-top: 14px;
  max-width: 30em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--body-ink);
}

.page-contact .hero__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin-top: 26px;
}

.page-contact .channels__title {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
  padding-left: 12px;
  border-left: 3px solid var(--amber);
  line-height: 1.3;
}

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

.page-contact .channel {
  position: relative;
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  column-gap: 12px;
  row-gap: 8px;
  padding: 16px 16px 16px 14px;
  border-radius: 6px;
  border-left: 3px solid var(--amber);
  background: var(--navy-700);
  color: var(--pc-soft);
  overflow: hidden;
}

.page-contact .channel::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0) 58%);
  pointer-events: none;
}

.page-contact .channel__num {
  position: relative;
  z-index: 1;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--amber);
  padding-top: 1px;
}

.page-contact .channel__body {
  position: relative;
  z-index: 1;
  min-width: 0;
}

.page-contact .channel__label {
  margin: 0;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--amber-l);
  text-transform: uppercase;
}

.page-contact .channel__value {
  margin: 6px 0 0;
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.5;
  letter-spacing: 0.01em;
  color: #FFFFFF;
  overflow-wrap: anywhere;
}

.page-contact .channel__note {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: rgba(233, 238, 244, 0.68);
}

.page-contact .channel .copy-btn {
  position: relative;
  z-index: 1;
  grid-column: 2;
  justify-self: start;
  padding: 5px 13px;
  border-radius: 999px;
  border: 1px solid rgba(232, 199, 102, 0.5);
  background: rgba(255, 255, 255, 0.06);
  color: var(--amber-l);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: background-color 200ms var(--ease), border-color 200ms var(--ease);
}

.page-contact .channel .copy-btn:hover {
  border-color: var(--amber-l);
  background: rgba(201, 162, 39, 0.18);
}

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

.page-contact .channel .copy-btn.is-copied {
  border-color: var(--celadon);
  color: #9FE0CF;
}

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

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

.page-contact .media__caption {
  margin-top: 8px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--slate);
}

.page-contact .media__caption a {
  color: var(--navy-700);
  text-decoration: underline;
  text-decoration-color: var(--cyan);
  text-underline-offset: 3px;
}

/* ---------- 提问模板 ---------- */
.page-contact .brief {
  padding-top: 56px;
}

.page-contact .brief__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

.page-contact .brief h2,
.page-contact .kinds h2,
.page-contact .notes h2 {
  margin: 10px 0 0;
  font-size: clamp(22px, 5vw, 30px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: var(--ink);
}

.page-contact .brief .prose,
.page-contact .kinds .prose {
  margin-top: 12px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--body-ink);
  max-width: 32em;
}

.page-contact .fields {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--pc-rule);
}

.page-contact .field {
  display: grid;
  grid-template-columns: 16px minmax(0, 1fr);
  gap: 12px;
  padding: 16px 0;
  border-bottom: 1px dashed var(--pc-rule);
}

.page-contact .field__box {
  width: 14px;
  height: 14px;
  margin-top: 5px;
  border: 1px solid var(--amber);
  border-radius: 3px;
  background: rgba(201, 162, 39, 0.1);
}

.page-contact .field__name {
  margin: 0;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: 0.01em;
}

.page-contact .field__why {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--slate);
}

.page-contact .brief__aside {
  background: var(--warm-200);
  border-radius: 6px;
  border-top: 3px solid var(--celadon);
  padding: 20px 18px 22px;
}

.page-contact .aside__title {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.page-contact .lookups {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .lookup {
  padding-left: 11px;
  border-left: 2px solid var(--celadon);
}

.page-contact .lookup__key {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--celadon);
}

.page-contact .lookup__where {
  margin: 5px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--body-ink);
}

.page-contact .aside__foot {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--slate);
}

.page-contact .aside__foot a {
  color: var(--navy-700);
  text-decoration: underline;
  text-decoration-color: var(--cyan);
  text-underline-offset: 3px;
  font-weight: 500;
}

/* ---------- 常见反馈 ---------- */
.page-contact .kinds {
  padding-top: 56px;
}

.page-contact .kinds__list {
  margin-top: 24px;
  display: grid;
  gap: 10px;
}

.page-contact .kind {
  border: 1px solid var(--pc-rule);
  border-radius: 6px;
  background: var(--pc-card);
  overflow: hidden;
}

.page-contact .kind[open] {
  border-color: rgba(201, 162, 39, 0.55);
}

.page-contact .kind summary {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr) 16px;
  align-items: start;
  gap: 10px;
  padding: 14px 14px;
  cursor: pointer;
  list-style: none;
}

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

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

.page-contact .kind__idx {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--amber);
  padding-top: 2px;
}

.page-contact .kind__text {
  display: block;
  min-width: 0;
}

.page-contact .kind__name {
  display: block;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.55;
  color: var(--ink);
}

.page-contact .kind__hint {
  display: block;
  margin-top: 3px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--celadon);
}

.page-contact .kind__mark {
  position: relative;
  width: 14px;
  height: 14px;
  margin-top: 5px;
}

.page-contact .kind__mark::before,
.page-contact .kind__mark::after {
  content: "";
  position: absolute;
  background: var(--slate);
  transition: transform 200ms var(--ease), opacity 200ms var(--ease);
}

.page-contact .kind__mark::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 1.5px;
}

.page-contact .kind__mark::after {
  left: 6px;
  top: 0;
  width: 1.5px;
  height: 14px;
}

.page-contact .kind[open] .kind__mark::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-contact .kind__body {
  padding: 0 14px 16px 50px;
}

.page-contact .kind__body p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--body-ink);
}

.page-contact .kind__body p:last-child {
  margin-bottom: 0;
}

.page-contact .kind__body a {
  color: var(--navy-700);
  text-decoration: underline;
  text-decoration-color: var(--cyan);
  text-underline-offset: 3px;
}

/* ---------- 响应节奏 ---------- */
.page-contact .rhythm {
  position: relative;
  margin-top: 56px;
  padding: 28px 18px 30px;
  border-radius: 8px;
  background-color: var(--ink);
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 24px 24px;
  color: var(--pc-soft);
  overflow: hidden;
}

.page-contact .rhythm .eyebrow {
  color: var(--amber-l);
}

.page-contact .rhythm h2 {
  margin: 10px 0 0;
  font-size: clamp(22px, 5vw, 30px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: #FFFFFF;
}

.page-contact .rhythm .prose {
  margin-top: 12px;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(233, 238, 244, 0.78);
}

.page-contact .rhythm__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  margin-top: 26px;
}

.page-contact .stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-contact .stat {
  padding-left: 13px;
  border-left: 2px solid var(--amber);
}

.page-contact .stat__num {
  margin: 0;
  font-family: var(--mono);
  font-size: 30px;
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: 0.01em;
  color: var(--amber-l);
}

.page-contact .stat__unit {
  margin-left: 4px;
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 500;
  color: rgba(232, 199, 102, 0.85);
}

.page-contact .stat__label {
  margin: 7px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: rgba(233, 238, 244, 0.66);
}

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

.page-contact .rhythm__figure img {
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.page-contact .rhythm__figure .media__caption {
  color: rgba(233, 238, 244, 0.6);
}

.page-contact .rhythm__figure .media__caption a {
  color: var(--amber-l);
  text-decoration-color: rgba(232, 199, 102, 0.6);
}

/* ---------- 收束 ---------- */
.page-contact .notes {
  margin-top: 56px;
  padding-top: 42px;
  border-top: 1px solid var(--pc-rule);
}

.page-contact .notes__inner {
  max-width: 620px;
}

.page-contact .notes .prose {
  margin-top: 12px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--body-ink);
}

.page-contact .notes__close {
  margin: 22px 0 24px;
  padding-left: 14px;
  border-left: 3px solid var(--amber);
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink);
}

.page-contact .notes__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .notes__links .btn {
  font-size: 14px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-contact .hero__frame {
    padding: 34px 30px 28px;
  }

  .page-contact .channel {
    grid-template-columns: 34px minmax(0, 1fr);
    padding: 18px 20px 18px 18px;
  }

  .page-contact .channel__value {
    font-size: 15px;
  }

  .page-contact .kind summary {
    grid-template-columns: 30px minmax(0, 1fr) 18px;
    padding: 16px 18px;
  }

  .page-contact .kind__body {
    padding: 0 18px 18px 58px;
  }

  .page-contact .rhythm {
    padding: 36px 30px 38px;
  }

  .page-contact .stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }
}

@media (min-width: 900px) {
  .page-contact .hero__body {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    column-gap: 26px;
    align-items: start;
    margin-top: 30px;
  }

  .page-contact .channels__title {
    grid-column: 1 / -1;
    margin-bottom: 2px;
  }

  .page-contact .brief__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 44px;
    align-items: start;
  }

  .page-contact .rhythm__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr);
    gap: 34px;
    align-items: center;
  }

  .page-contact .stats {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
  }

  .page-contact .brief,
  .page-contact .kinds {
    padding-top: 72px;
  }

  .page-contact .rhythm {
    margin-top: 72px;
  }

  .page-contact .notes {
    margin-top: 72px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel .copy-btn,
  .page-contact .kind__mark::before,
  .page-contact .kind__mark::after {
    transition: none;
  }
}