.page-contact {
  --contact-panel: rgba(19, 42, 36, 0.55);
  --contact-ink-text: #2b322b;
  --contact-ink-label: #4a5348;
  padding-bottom: clamp(64px, 9vw, 140px);
  background:
    radial-gradient(120% 55% at 92% -12%, rgba(201, 162, 39, 0.10), transparent 62%),
    linear-gradient(180deg, var(--ink) 0%, var(--ink) 55%, var(--ink-2) 100%);
  color: var(--silver);
}

.page-contact .contact-topline {
  position: relative;
  height: 14px;
}

.page-contact .contact-topline::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg,
    transparent 0 5%,
    var(--line-gold) 20%,
    var(--gold) 50%,
    var(--line-gold) 80%,
    transparent 95% 100%);
}

.page-contact .contact-topline::after {
  content: "";
  position: absolute;
  left: 5%;
  right: 5%;
  top: 0;
  height: 7px;
  background: repeating-linear-gradient(90deg,
    var(--line-strong) 0 1px,
    transparent 1px 34px);
  opacity: 0.75;
}

.page-contact .breadcrumbs {
  padding-top: clamp(18px, 3vw, 34px);
}

/* ---------- 首屏：非对称分栏 ---------- */

.page-contact .contact-hero {
  display: grid;
  gap: clamp(38px, 5vw, 72px);
  align-items: start;
  padding-top: clamp(34px, 5vw, 66px);
}

.page-contact .contact-hero__lead {
  max-width: 60ch;
}

.page-contact .contact-hero__title {
  margin: 20px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(42px, 7.6vw, 100px);
  line-height: 0.94;
  letter-spacing: -0.02em;
  color: var(--bone);
}

.page-contact .contact-hero__lede {
  margin: clamp(20px, 2.6vw, 32px) 0 0;
  max-width: 44ch;
  color: var(--silver);
}

.page-contact .contact-hero__hint {
  margin: 20px 0 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--stone);
}

.page-contact .contact-hero__cards {
  display: grid;
  gap: 20px;
}

.page-contact .contact-card {
  border-radius: var(--radius-lg);
  padding: clamp(24px, 3.4vw, 42px);
  transition: transform 0.15s var(--ease), box-shadow 0.15s var(--ease), border-color 0.15s var(--ease);
}

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

.page-contact .contact-card--mail {
  background: var(--mineral);
  color: var(--ink);
  border: 1px solid rgba(13, 17, 16, 0.12);
}

.page-contact .contact-card--mail:hover,
.page-contact .contact-card--mail:focus-visible {
  transform: translateY(-4px);
  box-shadow: var(--lift), 0 0 0 1px var(--gold);
}

.page-contact .contact-card--mail .data-label {
  color: var(--contact-ink-label);
}

.page-contact .contact-card--phone {
  background: linear-gradient(150deg, var(--ink-2) 0%, #0e1f1a 72%);
  border: 1px solid var(--line-gold);
  color: var(--silver);
}

.page-contact .contact-card--phone:hover,
.page-contact .contact-card--phone:focus-visible {
  transform: translateY(-4px);
  box-shadow: var(--lift);
  border-color: var(--gold);
}

.page-contact .contact-card--phone .data-label {
  color: var(--gold);
}

.page-contact .contact-card__value {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 2.1vw, 22px);
  letter-spacing: 0.01em;
  line-height: 1.4;
  word-break: break-word;
  color: var(--ink);
}

.page-contact .contact-card--phone .contact-card__value {
  color: var(--gold-lt);
  letter-spacing: 0.06em;
}

.page-contact .contact-card__desc {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.72;
  color: var(--contact-ink-text);
}

.page-contact .contact-card--phone .contact-card__desc {
  color: var(--silver);
}

.page-contact .contact-card__tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0 0;
  padding: 0;
}

.page-contact .contact-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 15px;
  color: var(--silver);
}

.page-contact .contact-card__meta .data-label {
  color: var(--stone);
}

/* ---------- 通栏抽象图 ---------- */

.page-contact .contact-banner {
  margin: clamp(50px, 7vw, 112px) 0 0;
  padding: 0 var(--gutter);
}

.page-contact .contact-banner__img {
  display: block;
  width: 100%;
  height: clamp(190px, 30vw, 400px);
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-soft);
  filter: saturate(0.85);
}

.page-contact .contact-banner__caption {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--stone);
}

/* ---------- 自助分流 ---------- */

.page-contact .contact-routes {
  padding-top: clamp(56px, 8vw, 120px);
}

.page-contact .route-grid {
  display: grid;
  gap: clamp(30px, 4vw, 56px);
  margin-top: clamp(28px, 4vw, 48px);
}

.page-contact .route-list {
  border-bottom: 1px solid var(--line);
}

.page-contact .route-item {
  border-top: 1px solid var(--line);
}

.page-contact .route-item__summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  padding: clamp(18px, 2.2vw, 26px) 0;
  cursor: pointer;
  list-style: none;
}

.page-contact .route-item__summary::-webkit-details-marker {
  display: none;
}

.page-contact .route-item__summary:hover .route-item__label {
  color: var(--gold-lt);
}

.page-contact .route-item__summary:focus-visible {
  outline: 2px solid var(--gold-lt);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

.page-contact .route-item__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-contact .route-item__label {
  flex: 1 1 58%;
  font-family: var(--font-serif);
  font-size: clamp(18px, 2vw, 23px);
  line-height: 1.4;
  color: var(--bone);
  transition: color 0.15s var(--ease);
}

.page-contact .route-item__summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--stone);
}

.page-contact .route-item[open] .route-item__summary::after {
  content: "–";
  color: var(--gold-lt);
}

.page-contact .route-item__body {
  max-width: 62ch;
  padding: 0 0 clamp(20px, 2.6vw, 32px);
}

.page-contact .route-item__body p {
  margin: 0 0 12px;
  font-size: 16.5px;
  line-height: 1.75;
  color: var(--silver);
}

.page-contact .route-item__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.page-contact .route-aside {
  display: grid;
  gap: 20px;
  align-content: start;
}

.page-contact .route-aside__img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--line-soft);
  filter: saturate(0.8);
}

.page-contact .route-note {
  background: var(--contact-panel);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: clamp(20px, 2.6vw, 28px);
}

.page-contact .route-note .data-label {
  color: var(--gold);
}

.page-contact .route-note p {
  margin: 10px 0 0;
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--silver);
}

/* ---------- 三件事 ---------- */

.page-contact .contact-brief {
  padding-top: clamp(56px, 8vw, 120px);
}

.page-contact .brief-grid {
  display: grid;
  gap: 1px;
  margin-top: clamp(28px, 4vw, 48px);
  background: var(--line-soft);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .brief-item {
  background: linear-gradient(180deg, rgba(19, 42, 36, 0.5) 0%, rgba(13, 17, 16, 0.92) 100%);
  padding: clamp(24px, 3vw, 40px) clamp(20px, 2.6vw, 34px);
}

.page-contact .brief-item__no {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--clay);
}

.page-contact .brief-item__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 2.2vw, 26px);
  letter-spacing: -0.01em;
  color: var(--bone);
}

.page-contact .brief-item__text {
  margin: 12px 0 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--silver);
}

/* ---------- 纠错与合作 ---------- */

.page-contact .contact-collab {
  padding-top: clamp(56px, 8vw, 120px);
}

.page-contact .collab-grid {
  display: grid;
  gap: clamp(30px, 4vw, 56px);
  margin-top: clamp(26px, 3.6vw, 44px);
}

.page-contact .collab-list {
  list-style: none;
  display: grid;
  gap: 22px;
  margin: 0;
  padding: 0;
}

.page-contact .collab-list li {
  position: relative;
  padding-left: 24px;
}

.page-contact .collab-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 12px;
  height: 1px;
  background: var(--gold);
}

.page-contact .collab-list strong {
  display: block;
  margin-bottom: 6px;
  font-size: 16.5px;
  font-weight: 600;
  color: var(--bone);
}

.page-contact .collab-list span {
  display: block;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--silver);
}

.page-contact .material-card {
  background: var(--mineral);
  color: var(--ink);
  border-radius: var(--radius-lg);
  padding: clamp(24px, 3vw, 40px);
  align-self: start;
}

.page-contact .material-card__title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(19px, 2vw, 24px);
  line-height: 1.4;
  color: var(--ink);
}

.page-contact .material-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
}

.page-contact .material-list li {
  display: grid;
  gap: 6px;
  padding: 14px 0;
  border-top: 1px solid rgba(13, 17, 16, 0.14);
}

.page-contact .material-list li:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .material-list .data-label {
  font-size: 11.5px;
  color: var(--contact-ink-label);
}

.page-contact .material-list p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.68;
  color: var(--contact-ink-text);
}

/* ---------- 收束 ---------- */

.page-contact .contact-foot {
  padding-top: clamp(56px, 8vw, 120px);
}

.page-contact .contact-foot__panel {
  display: grid;
  gap: clamp(18px, 2.4vw, 28px);
  padding: clamp(26px, 3.4vw, 50px);
  border: 1px solid var(--line-gold);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(19, 42, 36, 0.92) 0%, rgba(13, 17, 16, 0.96) 100%);
}

.page-contact .contact-foot__time {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-contact .contact-foot__text {
  margin: 0;
  max-width: 64ch;
  font-family: var(--font-body);
  font-size: clamp(16.5px, 1.3vw, 18px);
  font-weight: 400;
  line-height: 1.75;
  color: var(--silver);
}

.page-contact .contact-foot__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0;
}

/* ---------- 响应式 ---------- */

@media (min-width: 760px) {
  .page-contact .brief-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .collab-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
}

@media (min-width: 1000px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 47fr) minmax(0, 53fr);
    gap: clamp(48px, 6vw, 110px);
  }
}

@media (min-width: 1040px) {
  .page-contact .route-grid {
    grid-template-columns: minmax(0, 62fr) minmax(0, 38fr);
    align-items: start;
  }

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

  .page-contact .route-aside {
    position: sticky;
    top: calc(var(--header-h-condensed) + 24px);
  }
}

@media (max-width: 560px) {
  .page-contact .route-item__label {
    flex: 1 1 100%;
    order: 3;
  }

  .page-contact .contact-banner {
    padding: 0 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-card,
  .page-contact .route-item__label {
    transition: none;
  }

  .page-contact .contact-card:hover,
  .page-contact .contact-card:focus-visible,
  .page-contact .contact-card--mail:hover,
  .page-contact .contact-card--mail:focus-visible,
  .page-contact .contact-card--phone:hover,
  .page-contact .contact-card--phone:focus-visible {
    transform: none;
  }
}
</main>