.page-contact {
  --c-line: rgba(242, 237, 227, 0.14);
  --c-line-soft: rgba(242, 237, 227, 0.08);
  --c-panel: #0E2621;
  --c-panel-deep: #0A1A16;
  display: block;
}

.page-contact .wrap {
  padding-top: calc(var(--top-h) + 40px);
  padding-bottom: 88px;
}

/* ---------- 面包屑 ---------- */
.page-contact .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--slate);
  margin-bottom: 30px;
}

.page-contact .crumbs a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-contact .crumbs a:hover,
.page-contact .crumbs a:focus-visible {
  border-bottom-color: var(--gold);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-intro {
  padding-bottom: 42px;
  border-bottom: 1px solid var(--c-line);
  margin-bottom: 56px;
}

.page-contact .contact-intro__idx {
  display: inline-block;
  font-size: 12.5px;
  letter-spacing: 0.2em;
  color: var(--gold);
  margin-bottom: 16px;
}

.page-contact .contact-intro h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 7vw, 58px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--ivory);
  margin: 0 0 22px;
  max-width: 14em;
}

.page-contact .contact-intro .lede {
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--slate);
}

/* ---------- 联系卡 ---------- */
.page-contact .desk {
  position: relative;
  display: grid;
  gap: 34px;
  padding: clamp(24px, 3.6vw, 52px);
  background: linear-gradient(155deg, var(--c-panel) 0%, var(--c-panel-deep) 78%);
  border: 1px solid var(--c-line);
  border-radius: var(--r);
  margin-bottom: 84px;
  overflow: hidden;
}

.page-contact .desk::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 96px;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), transparent);
}

.page-contact .desk__title {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ivory);
  margin: 0 0 10px;
}

.page-contact .desk__note {
  font-size: 15px;
  line-height: 1.75;
  color: var(--slate);
  margin: 0 0 26px;
  max-width: 38ch;
}

.page-contact .channel-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .channel {
  display: grid;
  gap: 7px;
  padding: 20px 0;
  border-top: 1px solid var(--c-line-soft);
}

.page-contact .channel:first-child {
  border-top: 0;
  padding-top: 2px;
}

.page-contact .channel__label {
  font-size: 12.5px;
  letter-spacing: 0.16em;
  color: var(--slate);
}

.page-contact .channel__value {
  font-family: var(--font-mono);
  font-size: clamp(16px, 2.6vw, 23px);
  line-height: 1.35;
  color: var(--gold-lit);
  letter-spacing: 0.01em;
  overflow-wrap: anywhere;
}

.page-contact .channel--time .channel__value {
  color: var(--ivory);
}

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

.page-contact .desk__figure {
  margin: 0;
  border: 1px solid var(--c-line);
  border-radius: var(--r);
  overflow: hidden;
  min-height: 220px;
}

.page-contact .desk__figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.82) contrast(1.03);
}

/* ---------- 章节骨架微调 ---------- */
.page-contact .section {
  margin-bottom: 84px;
}

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

.page-contact .section__num {
  color: var(--gold);
  font-size: 12.5px;
  letter-spacing: 0.18em;
}

/* ---------- 材料清单 ---------- */
.page-contact .materials {
  display: grid;
  gap: 30px;
  margin-top: 34px;
}

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

.page-contact .prep__item {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr);
  gap: 18px;
  padding: 22px 22px 24px;
  background: var(--glass);
  border: 1px solid var(--c-line-soft);
  border-radius: var(--r);
  transition: border-color 220ms ease, transform 220ms ease;
}

.page-contact .prep__item:hover {
  border-color: var(--c-line);
  transform: translateX(3px);
}

.page-contact .prep__dot {
  width: 15px;
  height: 15px;
  margin-top: 4px;
  border-radius: 50%;
  border: 2px solid var(--gold);
  background:
    radial-gradient(circle at 50% 50%, var(--gold) 0 3.5px, transparent 3.5px);
}

.page-contact .prep__title {
  margin: 0 0 9px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--ivory);
}

.page-contact .prep__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--slate);
}

.page-contact .prep__fields {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--gold);
}

.page-contact .materials__figure {
  margin: 0;
  border: 1px solid var(--c-line-soft);
  border-radius: var(--r);
  overflow: hidden;
}

.page-contact .materials__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.8) contrast(1.02);
}

/* ---------- 回复节奏 ---------- */
.page-contact .rhythm {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  display: grid;
  gap: 26px;
}

.page-contact .rhythm__step {
  position: relative;
  padding-top: 26px;
  border-top: 1px solid var(--c-line);
}

.page-contact .rhythm__step::before {
  content: "";
  position: absolute;
  top: -5px;
  left: 0;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(201, 162, 39, 0.18);
}

.page-contact .rhythm__time {
  display: block;
  font-family: var(--font-mono);
  font-size: 20px;
  letter-spacing: 0.02em;
  color: var(--gold-lit);
  margin-bottom: 12px;
}

.page-contact .rhythm__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--slate);
}

/* ---------- 合作 ---------- */
.page-contact .coop {
  display: grid;
  gap: 20px;
  margin-top: 34px;
}

.page-contact .coop__card {
  padding: 28px 26px 30px;
  border: 1px solid var(--c-line-soft);
  border-radius: var(--r);
}

.page-contact .coop__card--solid {
  background: var(--c-panel);
}

.page-contact .coop__card--glass {
  background: var(--glass);
}

.page-contact .coop__head {
  margin: 0 0 16px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ivory);
}

.page-contact .coop__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 13px;
}

.page-contact .coop__list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--slate);
}

.page-contact .coop__list li::before {
  content: "";
  position: absolute;
  top: 11px;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 1px;
  background: var(--gold);
}

.page-contact .coop__text {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--slate);
}

.page-contact .coop__mail {
  margin: 20px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--c-line-soft);
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.01em;
  color: var(--gold-lit);
  overflow-wrap: anywhere;
}

/* ---------- 地址与备案 ---------- */
.page-contact .imprint {
  margin: 34px 0 0;
  border-top: 1px solid var(--c-line);
}

.page-contact .imprint__row {
  display: grid;
  gap: 5px;
  padding: 18px 0;
  border-bottom: 1px solid var(--c-line-soft);
}

.page-contact .imprint__key {
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--slate);
}

.page-contact .imprint__val {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--ivory);
  overflow-wrap: anywhere;
}

.page-contact .imprint__val.mono {
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

/* ---------- 相关入口 ---------- */
.page-contact .related {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 36px;
  padding-top: 26px;
  border-top: 1px solid var(--c-line);
}

.page-contact .related__label {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--slate);
  margin-right: 4px;
}

.page-contact .related .chip {
  text-decoration: none;
  color: var(--ivory);
  border: 1px solid var(--c-line);
  border-radius: 999px;
  padding: 7px 15px;
  font-size: 13.5px;
  line-height: 1.4;
  transition: border-color 200ms ease, color 200ms ease, background-color 200ms ease;
}

.page-contact .related .chip:hover,
.page-contact .related .chip:focus-visible {
  color: var(--gold-lit);
  border-color: var(--gold);
  background: rgba(201, 162, 39, 0.08);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-contact .imprint__row {
    grid-template-columns: 132px minmax(0, 1fr);
    align-items: baseline;
    gap: 26px;
  }
}

@media (min-width: 768px) {
  .page-contact .rhythm {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 30px 28px;
  }
}

@media (min-width: 900px) {
  .page-contact .desk {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    gap: 52px;
    align-items: stretch;
  }

  .page-contact .coop {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 24px;
  }
}

@media (min-width: 960px) {
  .page-contact .materials {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
    gap: 34px;
  }

  .page-contact .rhythm {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 480px) {
  .page-contact .wrap {
    padding-top: calc(var(--top-h) + 24px);
  }

  .page-contact .contact-intro {
    padding-bottom: 32px;
    margin-bottom: 42px;
  }

  .page-contact .desk {
    margin-bottom: 60px;
  }

  .page-contact .section {
    margin-bottom: 60px;
  }

  .page-contact .prep__item {
    padding: 18px 16px 20px;
    gap: 14px;
  }

  .page-contact .coop__card {
    padding: 22px 18px 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .prep__item,
  .page-contact .related .chip {
    transition: none;
  }

  .page-contact .prep__item:hover {
    transform: none;
  }
}