.page-contact {
  --pc-ink-line: rgba(5, 19, 15, 0.18);
  --pc-ink-soft: rgba(5, 19, 15, 0.64);
  padding-bottom: clamp(48px, 8vw, 96px);
  color: var(--text-primary);
}

.page-contact .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-block: clamp(16px, 3vw, 28px);
  font-size: 13px;
  letter-spacing: 0.02em;
}

.page-contact .crumb {
  color: var(--text-secondary);
  text-decoration: none;
}

.page-contact a.crumb {
  border-bottom: 1px solid transparent;
  transition: color var(--ease), border-color var(--ease);
}

.page-contact a.crumb:hover {
  color: var(--gold-500);
  border-bottom-color: var(--line-gold);
}

.page-contact .crumb[aria-current="page"] {
  color: var(--text-primary);
  font-weight: 600;
}

.page-contact .crumb-sep {
  color: var(--steel-500);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  display: grid;
  gap: clamp(28px, 5vw, 48px);
  padding-bottom: clamp(24px, 5vw, 52px);
}

.page-contact .eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--gold-500);
}

.page-contact h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 6.2vw, 52px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  text-wrap: balance;
}

.page-contact .lede {
  margin: 0 0 26px;
  max-width: 46ch;
  font-size: clamp(15px, 1.8vw, 17px);
  line-height: 1.8;
  color: var(--text-secondary);
}

.page-contact .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-contact .contact-hero__stage {
  position: relative;
  min-width: 0;
}

.page-contact .contact-hero__visual {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-m);
  border: 1px solid var(--line-soft);
  aspect-ratio: 16 / 9;
  background: var(--pitch-900);
}

.page-contact .contact-hero__visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.8) brightness(0.72);
}

.page-contact .contact-hero__visual::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(5, 19, 15, 0) 38%, rgba(5, 19, 15, 0.86) 100%);
}

.page-contact .contact-stack {
  position: relative;
  z-index: 2;
  margin: -42px 12px 0;
}

.page-contact .contact-card {
  padding: clamp(20px, 4vw, 30px);
  border-radius: var(--radius-m);
  background: var(--paper-200);
  color: var(--ink-950);
}

.page-contact .contact-card__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 14px;
  margin-bottom: 18px;
  border-bottom: 1px dashed var(--pc-ink-line);
}

.page-contact .contact-role {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--pc-ink-soft);
}

.page-contact .contact-hours {
  padding: 4px 9px;
  border: 1px solid rgba(214, 161, 63, 0.75);
  border-radius: var(--radius-s);
  background: rgba(214, 161, 63, 0.16);
  font-family: var(--font-mono);
  font-size: 12px;
  color: #6f4c12;
  white-space: nowrap;
}

.page-contact .contact-rows {
  margin: 0 0 18px;
  display: grid;
  gap: 16px;
}

.page-contact .contact-row dt {
  margin-bottom: 3px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--pc-ink-soft);
}

.page-contact .contact-row dd {
  margin: 0;
  font-size: clamp(15px, 2vw, 17px);
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink-950);
  overflow-wrap: anywhere;
}

.page-contact .contact-link {
  color: var(--ink-950);
  text-decoration: none;
  border-bottom: 2px solid rgba(214, 161, 63, 0.55);
  transition: color var(--ease), border-color var(--ease);
}

.page-contact .contact-link:hover {
  color: #0a2f22;
  border-bottom-color: var(--gold-500);
}

.page-contact .contact-card :focus-visible {
  outline: 2px solid var(--ink-950);
  outline-offset: 3px;
  box-shadow: 0 0 0 5px rgba(214, 161, 63, 0.5);
  border-radius: 2px;
}

.page-contact .contact-note {
  margin: 0;
  padding-top: 14px;
  border-top: 1px dashed var(--pc-ink-line);
  font-size: 13px;
  line-height: 1.8;
  color: var(--pc-ink-soft);
}

/* ---------- 通用章节 ---------- */
.page-contact .section {
  padding-block: clamp(30px, 5.5vw, 62px);
}

.page-contact .section-title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 3.6vw, 34px);
  line-height: 1.22;
  letter-spacing: -0.015em;
  color: var(--text-primary);
}

.page-contact .body-text {
  margin: 0 0 18px;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-secondary);
}

/* ---------- 准备清单 ---------- */
.page-contact .prep-layout {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  align-items: start;
}

.page-contact .prep-main {
  min-width: 0;
}

.page-contact .prep-lede {
  margin: 0 0 22px;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-secondary);
}

.page-contact .prep-list {
  border-top: 1px solid var(--line-soft);
}

.page-contact .prep-item {
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .prep-item summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 2px;
  cursor: pointer;
  list-style: none;
  font-size: clamp(15px, 2vw, 17px);
  font-weight: 600;
  color: var(--text-primary);
  transition: color var(--ease);
}

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

.page-contact .prep-item summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--gold-500);
}

.page-contact .prep-item[open] summary::after {
  content: "–";
}

.page-contact .prep-item summary:hover {
  color: var(--gold-500);
}

.page-contact .prep-item summary:focus-visible {
  outline: 2px solid var(--focus-400);
  outline-offset: 3px;
}

.page-contact .prep-idx {
  padding: 2px 6px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-s);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--steel-500);
}

.page-contact .prep-item p {
  margin: 0 0 16px;
  padding-left: clamp(0px, 5vw, 40px);
  max-width: 60ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-secondary);
}

.page-contact .prep-foot {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-secondary);
}

.page-contact .prep-foot a {
  color: var(--gold-500);
  text-decoration: none;
  border-bottom: 1px solid var(--line-gold);
  transition: color var(--ease), border-color var(--ease);
}

.page-contact .prep-foot a:hover {
  color: var(--orange-500);
}

.page-contact .prep-foot a:focus-visible {
  outline: 2px solid var(--focus-400);
  outline-offset: 3px;
}

.page-contact .prep-figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-m);
  background: var(--tactical-800);
}

.page-contact .prep-media {
  aspect-ratio: 1 / 1;
  overflow: hidden;
}

.page-contact .prep-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-contact .prep-cap {
  padding: 12px 16px;
  border-top: 1px solid var(--line-soft);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--text-secondary);
}

/* ---------- 回复节奏 ---------- */
.page-contact .rhythm-track {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
}

.page-contact .rhythm-step {
  position: relative;
  padding: 4px 0 26px 24px;
  border-left: 2px solid var(--line-soft);
}

.page-contact .rhythm-step:last-child {
  padding-bottom: 0;
}

.page-contact .rhythm-step::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 10px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--gold-500);
  box-shadow: 0 0 0 3px var(--ink-950);
}

.page-contact .rhythm-time {
  display: inline-block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--orange-500);
}

.page-contact .rhythm-step h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
}

.page-contact .rhythm-step p {
  margin: 0;
  max-width: 42ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-secondary);
}

/* ---------- 纠错与归档 ---------- */
.page-contact .fix-layout {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  align-items: start;
}

.page-contact .fix-copy {
  min-width: 0;
}

.page-contact .fix-list {
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-contact .fix-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text-primary);
}

.page-contact .fix-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 9px;
  width: 7px;
  height: 7px;
  background: var(--gold-500);
  transform: rotate(45deg);
}

.page-contact .fix-note {
  padding: clamp(18px, 3vw, 26px);
  border: 1px solid var(--line-gold);
  border-radius: var(--radius-m);
  background:
    radial-gradient(120% 100% at 100% 0%, rgba(224, 122, 74, 0.16) 0%, rgba(5, 19, 15, 0) 62%),
    linear-gradient(160deg, rgba(214, 161, 63, 0.1) 0%, rgba(11, 36, 28, 0.92) 58%);
}

.page-contact .fix-note__label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--steel-500);
}

.page-contact .fix-note__value {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: clamp(17px, 2.4vw, 21px);
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--gold-500);
}

.page-contact .fix-note__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-secondary);
}

/* ---------- 合作与社群 ---------- */
.page-contact .collab-band {
  position: relative;
  overflow: hidden;
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  padding: clamp(22px, 4vw, 38px);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-l);
  background: linear-gradient(140deg, rgba(30, 74, 60, 0.55) 0%, rgba(11, 36, 28, 0.92) 70%);
}

.page-contact .collab-band::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--orange-500), var(--gold-500));
}

.page-contact .collab-copy {
  min-width: 0;
}

.page-contact .collab-line {
  margin: 0;
  font-size: 15px;
}

.page-contact .contact-link--light {
  color: var(--gold-500);
  border-bottom-color: var(--line-gold);
}

.page-contact .contact-link--light:hover {
  color: var(--orange-500);
}

.page-contact .contact-link--light:focus-visible {
  outline: 2px solid var(--focus-400);
  outline-offset: 3px;
}

.page-contact .collab-tags {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-content: start;
}

/* ---------- 说明入口 ---------- */
.page-contact .links-lede {
  margin: 0 0 22px;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-secondary);
}

.page-contact .link-row {
  display: grid;
  gap: 14px;
}

.page-contact .link-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 6px 16px;
  padding: 18px 20px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-m);
  background: rgba(18, 54, 43, 0.55);
  text-decoration: none;
  transition: border-color var(--ease), transform var(--ease), background-color var(--ease);
}

.page-contact .link-card:hover {
  border-color: var(--gold-500);
  transform: translateY(-2px);
  background: rgba(18, 54, 43, 0.85);
}

.page-contact .link-card:focus-visible {
  outline: 2px solid var(--focus-400);
  outline-offset: 3px;
}

.page-contact .link-card__k {
  grid-column: 1;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
}

.page-contact .link-card__d {
  grid-column: 1;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-secondary);
}

.page-contact .link-card__go {
  grid-column: 2;
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--gold-500);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .link-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .collab-band {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    align-items: start;
  }
}

@media (min-width: 800px) {
  .page-contact .rhythm-track {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0 24px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    align-items: center;
  }

  .page-contact .contact-stack {
    margin: -52px 22px 0;
  }

  .page-contact .prep-layout {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
  }

  .page-contact .fix-layout {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .link-card:hover {
    transform: none;
  }
}