.page-contact {
  background: var(--c-ink);
  color: var(--c-mist);
}

.page-contact .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-block: 20px 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-fade);
}

.page-contact .crumb {
  color: inherit;
  text-decoration: none;
  transition: color 120ms var(--ease);
}

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

.page-contact .crumb[aria-current="page"] {
  color: var(--c-gold);
}

.page-contact .section {
  padding-block: 56px;
}

.page-contact .section--paper {
  color: var(--c-char);
}

.page-contact .eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-gold);
}

.page-contact .section-head__title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(24px, 4.4vw, 40px);
  line-height: 1.24;
  letter-spacing: -0.01em;
  margin-top: 10px;
}

.page-contact .section-head__note {
  margin-top: 14px;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-fade);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-block: 40px 32px;
}

.page-contact .contact-hero__title {
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(30px, 7vw, 58px);
  line-height: 1.16;
  letter-spacing: -0.015em;
  margin: 14px 0 0;
  color: var(--c-mist);
}

.page-contact .contact-hero__lead {
  margin-top: 22px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--c-mist);
  opacity: 0.86;
}

.page-contact .contact-hero__aside {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  font-size: 13px;
  color: var(--c-fade);
  padding-top: 16px;
  border-top: 1px solid var(--c-line);
}

.page-contact .contact-hero__aside .mono {
  color: var(--c-amber);
  font-size: 14px;
}

/* ---------- 联系卡 ---------- */
.page-contact .contact-channels {
  padding-block: 24px 56px;
}

.page-contact .channel-layout {
  display: grid;
  gap: 32px;
  margin-top: 36px;
}

.page-contact .channel-cards {
  display: grid;
  gap: 18px;
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 24px 22px 22px;
  background: var(--c-pine);
  color: var(--c-mist);
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 0 100%);
  box-shadow: inset 0 0 0 1px var(--c-line);
  transition: transform 200ms var(--ease), box-shadow 200ms var(--ease);
}

.page-contact .channel-card:hover {
  transform: translateY(-4px);
  box-shadow: inset 0 0 0 1px var(--c-gold);
}

.page-contact .channel-card__no {
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--c-gold);
}

.page-contact .channel-card__rule {
  display: block;
  height: 1px;
  background: var(--c-line);
  margin: 6px 0 12px;
}

.page-contact .channel-card__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--c-fade);
}

.page-contact .channel-card__value {
  font-size: 18px;
  line-height: 1.4;
  color: var(--c-mist);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .channel-card__value.mono {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.02em;
  color: var(--c-amber);
}

.page-contact .channel-card__hint {
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-fade);
}

/* 工作时间刻度条 */
.page-contact .hour-bar {
  position: relative;
  height: 12px;
  margin-top: 16px;
  background-image: repeating-linear-gradient(
    to right,
    var(--c-line) 0 1px,
    transparent 1px 8.3333%
  );
  border-bottom: 1px solid var(--c-line);
}

.page-contact .hour-bar__band {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 37.5%;
  width: 37.5%;
  background: linear-gradient(180deg, var(--c-amber), var(--c-gold));
}

/* 配图 */
.page-contact .channel-figure {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-contact .channel-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 3 / 2;
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
  filter: saturate(0.9);
}

.page-contact .channel-figure figcaption {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  line-height: 1.7;
  color: var(--c-fade);
}

/* ---------- 提问模板＋公告协作 ---------- */
.page-contact .contact-brief {
  padding-block: 64px;
  background: var(--c-paper);
}

.page-contact .contact-brief__grid {
  display: grid;
  gap: 44px;
}

.page-contact .brief-left__title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(24px, 4.2vw, 38px);
  line-height: 1.24;
  letter-spacing: -0.01em;
  margin-top: 10px;
  color: var(--c-char);
}

.page-contact .brief-left__lead {
  margin-top: 16px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-char);
  opacity: 0.8;
}

.page-contact .brief-steps {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
  border-top: 1px solid var(--c-paper-dim);
}

.page-contact .brief-step {
  display: grid;
  grid-template-columns: 22px 44px minmax(0, 1fr);
  align-items: start;
  gap: 12px;
  padding: 18px 0;
  border-bottom: 1px solid var(--c-paper-dim);
}

.page-contact .brief-step__box {
  width: 16px;
  height: 16px;
  margin-top: 4px;
  border: 1px solid var(--c-pine);
  background: var(--c-paper);
  position: relative;
}

.page-contact .brief-step__box::after {
  content: "";
  position: absolute;
  inset: 3px;
  background: var(--c-pine);
}

.page-contact .brief-step__no {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--c-red);
  padding-top: 2px;
}

.page-contact .brief-step__title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.4;
  margin: 0 0 4px;
  color: var(--c-char);
}

.page-contact .brief-step__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-char);
  opacity: 0.78;
}

.page-contact .brief-figure {
  margin: 32px 0 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-contact .brief-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 4 / 3;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-contact .brief-figure figcaption {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--c-pine);
  opacity: 0.75;
}

/* 右侧协作说明 */
.page-contact .brief-right {
  position: relative;
  padding: 28px 24px 26px;
  background: var(--c-moss);
  color: var(--c-mist);
  clip-path: polygon(0 0, calc(100% - 28px) 0, 100% 28px, 100% 100%, 0 100%);
}

.page-contact .brief-right__title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(21px, 3.4vw, 28px);
  line-height: 1.3;
  margin: 10px 0 16px;
  color: var(--c-mist);
}

.page-contact .brief-right p {
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-mist);
  opacity: 0.82;
}

.page-contact .brief-right p + p {
  margin-top: 14px;
}

.page-contact .collab-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  border-top: 1px solid var(--c-line);
}

.page-contact .collab-list li {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--c-line);
}

.page-contact .collab-list__key {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--c-gold);
}

.page-contact .collab-list__val {
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-mist);
  opacity: 0.85;
}

.page-contact .collab-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* ---------- 回复时效 ---------- */
.page-contact .contact-sla {
  padding-block: 64px;
}

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

.page-contact .contact-sla__title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(24px, 4.2vw, 38px);
  line-height: 1.24;
  letter-spacing: -0.01em;
  margin-top: 10px;
  color: var(--c-mist);
}

.page-contact .contact-sla__lead {
  margin-top: 16px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-mist);
  opacity: 0.82;
}

.page-contact .contact-sla__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-contact .sla-stats {
  margin: 0;
  display: grid;
  gap: 2px;
  border-top: 1px solid var(--c-line);
}

.page-contact .sla-stat {
  padding: 18px 0;
  border-bottom: 1px solid var(--c-line);
}

.page-contact .sla-stat__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--c-fade);
}

.page-contact .sla-stat__val {
  margin: 6px 0 0;
  font-size: 26px;
  line-height: 1.2;
  letter-spacing: 0.02em;
  color: var(--c-gold);
}

.page-contact .sla-stat__note {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-fade);
}

/* ---------- 断点 ---------- */
@media (min-width: 768px) {
  .page-contact .section {
    padding-block: 72px;
  }

  .page-contact .channel-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    padding-bottom: 30px;
  }

  .page-contact .channel-card:nth-child(even) {
    transform: translateY(30px);
  }

  .page-contact .channel-card:nth-child(even):hover {
    transform: translateY(26px);
  }

  .page-contact .channel-figure {
    max-width: 640px;
  }

  .page-contact .contact-brief {
    padding-block: 80px;
  }

  .page-contact .sla-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0 24px;
    border-top: 1px solid var(--c-line);
  }

  .page-contact .sla-stat {
    border-bottom: 0;
    border-top: 1px solid var(--c-line);
    margin-top: -1px;
  }
}

@media (min-width: 1024px) {
  .page-contact .contact-hero {
    padding-block: 56px 40px;
  }

  .page-contact .channel-layout {
    grid-template-columns: minmax(0, 1.65fr) minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }

  .page-contact .channel-figure {
    max-width: none;
    margin-top: 30px;
  }

  .page-contact .channel-figure img {
    aspect-ratio: 4 / 5;
  }

  .page-contact .contact-brief__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 64px;
    align-items: start;
  }

  .page-contact .contact-sla__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 64px;
    align-items: start;
  }

  .page-contact .sla-stats {
    grid-template-columns: 1fr;
    gap: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .channel-card:hover,
  .page-contact .channel-card:nth-child(even),
  .page-contact .channel-card:nth-child(even):hover {
    transform: none;
    transition: box-shadow 120ms linear;
  }
}
<<<END>>>