.page-contact {
  --ct-cut: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
  padding-bottom: clamp(40px, 6vw, 76px);
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumbs {
  padding: 18px 0 4px;
  font-size: 13px;
}

.page-contact .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
}

.page-contact .breadcrumbs__item {
  color: var(--muted);
}

.page-contact .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  margin: 0 8px;
  color: var(--line);
}

.page-contact .breadcrumbs__item a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .16s ease, border-color .16s ease;
}

.page-contact .breadcrumbs__item a:hover,
.page-contact .breadcrumbs__item a:focus-visible {
  color: var(--accent-2);
  border-bottom-color: currentColor;
}

.page-contact .breadcrumbs__item[aria-current="page"] {
  color: var(--text);
}

/* ---------- 联络面板 ---------- */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  padding: clamp(26px, 4.5vw, 52px) 0 clamp(40px, 6vw, 78px);
}

.page-contact .contact-hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  object-position: center;
  opacity: .32;
  pointer-events: none;
}

.page-contact .contact-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

.page-contact .contact-hero__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(30px, 5.6vw, 58px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -.03em;
  color: var(--text);
  text-wrap: balance;
}

.page-contact .contact-hero__lede {
  margin: 16px 0 0;
  max-width: 54ch;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
}

.page-contact .mail-plate {
  position: relative;
  margin-top: clamp(24px, 3.4vw, 38px);
  padding: clamp(18px, 2.6vw, 26px) clamp(18px, 3vw, 30px) clamp(20px, 2.8vw, 28px);
  background: rgba(26, 26, 26, .84);
  border: 1px solid var(--line);
  clip-path: var(--ct-cut);
}

.page-contact .mail-plate::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--grad-ember);
}

.page-contact .mail-plate__label {
  display: block;
  margin-bottom: 12px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--muted);
}

.page-contact .mail-plate__addr {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(20px, 4.4vw, 40px);
  font-weight: 700;
  line-height: 1.16;
  letter-spacing: -.02em;
  color: var(--text);
  text-decoration: none;
  overflow-wrap: anywhere;
  word-break: break-word;
  transition: color .16s ease;
}

.page-contact .mail-plate__addr:hover,
.page-contact .mail-plate__addr:focus-visible {
  color: var(--accent);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-contact .contact-hero__aside {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-contact .channel-card {
  position: relative;
  padding: 20px 22px 22px;
  background: var(--surface);
  border: 1px solid var(--line);
  clip-path: var(--ct-cut);
  transition: border-color .18s ease, transform .18s ease, background-color .18s ease;
}

.page-contact .channel-card:hover {
  border-color: var(--accent-2);
  transform: translateY(-2px);
}

.page-contact .channel-card--ember {
  background: linear-gradient(150deg, rgba(255, 77, 0, .17), rgba(26, 26, 26, .94) 58%);
  border-color: rgba(255, 77, 0, .46);
}

.page-contact .channel-card--ember::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--grad-ember);
}

.page-contact .channel-card__kicker {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--muted);
}

.page-contact .channel-card__title {
  margin: 0 0 10px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--text);
}

.page-contact .channel-card__value {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: clamp(19px, 3.2vw, 26px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -.01em;
  color: var(--accent);
  overflow-wrap: anywhere;
}

.page-contact .channel-card__value--sm {
  font-family: var(--font-body);
  font-size: clamp(15px, 2vw, 17px);
  font-weight: 600;
  line-height: 1.65;
  letter-spacing: 0;
  color: var(--text);
}

.page-contact .channel-card__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 通用区块 ---------- */
.page-contact .contact-section {
  padding: clamp(46px, 6.6vw, 84px) 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-section--last {
  border-bottom: 0;
  padding-bottom: clamp(30px, 4vw, 48px);
}

.page-contact .h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.6vw, 38px);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -.02em;
  color: var(--text);
  text-wrap: balance;
}

.page-contact .section-head {
  margin-bottom: clamp(26px, 3.6vw, 42px);
}

.page-contact .scope__lede,
.page-contact .fixgrid__lede,
.page-contact .samples__lede {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .prose {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
}

.page-contact .prose a,
.page-contact .press__copy a {
  color: var(--accent-2);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color .16s ease;
}

.page-contact .prose a:hover,
.page-contact .prose a:focus-visible,
.page-contact .press__copy a:hover,
.page-contact .press__copy a:focus-visible {
  color: var(--accent-3);
}

/* ---------- 受理范围 ---------- */
.page-contact .scope-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

.page-contact .scope-card {
  position: relative;
  padding: clamp(22px, 2.6vw, 28px) clamp(20px, 2.4vw, 26px);
  background: var(--surface);
  border: 1px solid var(--line);
  clip-path: var(--ct-cut);
  transition: border-color .2s ease, transform .2s ease;
}

.page-contact .scope-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}

.page-contact .scope-card__num {
  display: block;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--accent);
}

.page-contact .scope-card__title {
  margin: 0 0 10px;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--text);
}

.page-contact .scope-card__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.76;
  color: var(--muted);
}

.page-contact .scope-card__desc a {
  color: var(--accent-2);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .scope-card__desc a:hover,
.page-contact .scope-card__desc a:focus-visible {
  color: var(--accent-3);
}

/* ---------- 纠错清单 ---------- */
.page-contact .fix-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .fix-field {
  padding: 22px 22px 26px;
  background: var(--bg);
}

.page-contact .fix-field__num {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--accent-2);
}

.page-contact .fix-field__name {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
}

.page-contact .fix-field__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

.page-contact .fix-field__desc a {
  color: var(--accent-2);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 响应节奏 ---------- */
.page-contact .cadence__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

.page-contact .cadence__prose {
  margin: 16px 0 0;
  max-width: 56ch;
}

.page-contact .cadence__list {
  display: grid;
  gap: 16px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .cadence__item {
  display: grid;
  gap: 5px;
  padding-left: 16px;
  border-left: 2px solid var(--line);
}

.page-contact .cadence__item--hot {
  border-left-color: var(--accent);
}

.page-contact .cadence__time {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--accent-3);
}

.page-contact .cadence__desc {
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

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

.page-contact .cadence__figure .figure__frame {
  overflow: hidden;
  background: var(--surface-2);
  border: 1px solid var(--line);
  clip-path: var(--ct-cut);
}

.page-contact .cadence__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
}

.page-contact .cadence__figure .figure__caption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 来信范例 ---------- */
.page-contact .samples__list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-contact .sample {
  padding: 22px 22px 24px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-left: 2px solid var(--accent-2);
  transition: border-color .18s ease, background-color .18s ease;
}

.page-contact .sample:hover {
  background: var(--surface);
  border-left-color: var(--accent);
}

.page-contact .sample__tag {
  display: inline-block;
  margin: 0 0 12px;
}

.page-contact .sample__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--text);
}

/* ---------- 合作通道 ---------- */
.page-contact .press__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.6vw, 52px);
  align-items: start;
}

.page-contact .press__list {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .press__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 18px 20px;
  background: var(--bg);
}

.page-contact .press__code {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--accent);
}

.page-contact .press__desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-contact .fix-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .samples__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 20px;
  }

  .page-contact .press__item {
    grid-template-columns: 96px minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__inner {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    gap: clamp(32px, 4.6vw, 68px);
  }

  .page-contact .scope-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px 22px;
  }

  .page-contact .scope-card:nth-child(even) {
    margin-top: 26px;
  }

  .page-contact .cadence__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.06fr);
  }

  .page-contact .press__inner {
    grid-template-columns: minmax(0, .96fr) minmax(0, 1.04fr);
  }
}

@media (min-width: 1024px) {
  .page-contact .fix-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .scope-card,
  .page-contact .sample,
  .page-contact .mail-plate__addr {
    transition: none;
  }

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