.page-contact {
  --pc-line: rgba(143, 160, 181, .24);
  padding-bottom: 96px;
  background: var(--ink-900);
}

.page-contact [id] {
  scroll-margin-top: calc(var(--topbar-h) + 24px);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding-top: 36px;
  border-bottom: 1px solid var(--pc-line);
  background:
    radial-gradient(95% 120% at 6% 0%, rgba(24, 53, 98, .95) 0%, rgba(11, 27, 51, 0) 62%),
    var(--ink-900);
}

.page-contact .breadcrumbs {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--steel);
}

.page-contact .breadcrumbs a {
  color: var(--steel);
  text-decoration: none;
}

.page-contact .breadcrumbs a:hover,
.page-contact .breadcrumbs a:focus-visible {
  color: var(--orange);
}

.page-contact .contact-hero__head {
  position: relative;
  max-width: 780px;
  padding: 40px 0 0 22px;
}

.page-contact .contact-hero__head::before {
  content: "";
  position: absolute;
  left: 0;
  top: 44px;
  bottom: 6px;
  width: 8px;
  background-image: repeating-linear-gradient(to bottom, var(--orange) 0 2px, transparent 2px 10px);
  opacity: .85;
}

.page-contact .contact-hero__head .label-mono {
  color: var(--orange);
}

.page-contact h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 6.4vw, 52px);
  line-height: 1.14;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-contact .contact-hero__lead {
  margin: 18px 0 0;
  max-width: 640px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text-dim);
}

.page-contact .contact-hero__figure {
  position: relative;
  margin: 34px 0 0;
  border: 1px solid var(--line-strong);
  background: var(--ink-800);
  overflow: hidden;
}

.page-contact .contact-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 7;
  object-fit: cover;
}

.page-contact .contact-hero__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(11, 27, 51, .45) 0%, rgba(11, 27, 51, 0) 42%, rgba(11, 27, 51, .6) 100%);
}

/* ---------- 分流：左索引 + 右详情 ---------- */
.page-contact .contact-split {
  display: grid;
  gap: 24px;
  margin-top: 32px;
}

.page-contact .contact-split__main {
  min-width: 0;
}

.page-contact .route-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 4px 14px;
  align-items: baseline;
  padding: 16px 18px;
  border: 1px solid var(--pc-line);
  border-left: 3px solid var(--line-strong);
  background: var(--ink-800);
  color: inherit;
  text-decoration: none;
  transition: transform .18s ease, border-color .18s ease, background-color .18s ease;
}

.page-contact .route-card + .route-card {
  margin-top: 12px;
}

.page-contact .route-card:hover {
  transform: translateY(-2px);
  border-left-color: var(--orange);
  background: var(--ink-700);
}

.page-contact .route-card:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

.page-contact .route-card__num {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--orange);
  padding-top: 2px;
}

.page-contact .route-card__title {
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
  line-height: 1.5;
}

.page-contact .route-card__arrow {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--steel);
  transition: color .18s ease, transform .18s ease;
}

.page-contact .route-card:hover .route-card__arrow {
  color: var(--orange);
  transform: translateX(3px);
}

.page-contact .route-card__desc {
  grid-column: 2 / 3;
  font-size: 13px;
  line-height: 1.7;
  color: var(--steel);
}

.page-contact .route-detail {
  padding: 26px 0 28px;
  border-top: 1px solid var(--pc-line);
}

.page-contact .route-detail:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-contact .route-detail .label-mono {
  color: var(--steel);
}

.page-contact .route-detail__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 3.4vw, 22px);
  line-height: 1.42;
  color: var(--white);
}

.page-contact .route-detail__body {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-dim);
}

.page-contact .bullet-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .bullet-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-contact .bullet-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 10px;
  height: 1px;
  background: var(--orange);
}

/* ---------- 邮箱 ---------- */
.page-contact .mail-card {
  display: grid;
  gap: 22px;
  margin-top: 28px;
  padding: 26px 22px;
  border: 1px solid var(--line-strong);
  background: linear-gradient(135deg, var(--ink-800) 0%, var(--ink-900) 100%);
}

.page-contact .mail-card__key {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--steel);
}

.page-contact .mail-card__addr {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 3.8vw, 22px);
  line-height: 1.45;
  color: var(--white);
  word-break: break-all;
  user-select: all;
}

.page-contact .mail-card__hint {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-contact .hours {
  display: grid;
  gap: 10px;
  align-content: start;
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  color: var(--steel);
}

.page-contact .hours__row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-contact .section-footnote {
  margin: 26px 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--rust);
  font-size: 14px;
  line-height: 1.85;
  color: var(--text-dim);
  max-width: 68ch;
}

.page-contact .inline-link {
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 106, 31, .45);
}

.page-contact .inline-link:hover,
.page-contact .inline-link:focus-visible {
  border-bottom-color: var(--orange);
}

/* ---------- 电话与地址 ---------- */
.page-contact .comm-grid {
  display: grid;
  gap: 28px;
  margin-top: 28px;
}

.page-contact .comm-rows {
  min-width: 0;
}

.page-contact .comm-row {
  display: grid;
  gap: 8px;
  padding: 18px 0;
  border-top: 1px solid var(--pc-line);
}

.page-contact .comm-row__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--steel);
}

.page-contact .comm-row__val {
  font-family: var(--font-mono);
  font-size: clamp(16px, 4.2vw, 24px);
  line-height: 1.4;
  color: var(--white);
  word-break: break-word;
  user-select: all;
}

.page-contact .comm-row__note {
  max-width: 56ch;
  font-size: 13px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-contact .tick-rule {
  height: 12px;
  margin-top: 10px;
  background-image: repeating-linear-gradient(to right, rgba(143, 160, 181, .5) 0 1px, transparent 1px 12px);
  opacity: .8;
}

.page-contact .paper-figure {
  margin: 0;
  padding: 10px 10px 12px;
  background: var(--paper);
  border: 1px solid rgba(34, 26, 20, .3);
  box-shadow: var(--shadow-paper);
}

.page-contact .paper-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 3;
  object-fit: cover;
}

.page-contact .paper-figure figcaption {
  margin-top: 10px;
  font-family: var(--font-serif);
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--ink-dark);
}

/* ---------- 准备清单（纸层） ---------- */
.page-contact .prep-sheet {
  margin-top: 28px;
  padding: 24px 20px 26px;
  background: var(--paper);
  border: 1px solid rgba(34, 26, 20, .35);
  box-shadow: var(--shadow-paper);
  transition: box-shadow .2s ease;
}

.page-contact .prep-sheet:hover {
  box-shadow: var(--shadow-paper-hover);
}

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

.page-contact .prep-sheet__list li {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px dashed rgba(34, 26, 20, .28);
  font-family: var(--font-serif);
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-dark);
}

.page-contact .prep-sheet__list li:last-child {
  border-bottom: 0;
}

.page-contact .prep-sheet__num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--rust);
  padding-top: 5px;
}

.page-contact .prep-sheet__foot {
  margin: 18px 0 0;
  padding: 14px 16px;
  background: var(--ink-dark);
  color: var(--paper);
  font-size: 14px;
  line-height: 1.8;
}

/* ---------- 合作 ---------- */
.page-contact .partner-grid {
  display: grid;
  gap: 20px;
  margin-top: 28px;
}

.page-contact .partner-card {
  padding: 22px 20px 24px;
  background: var(--ink-800);
  border: 1px solid var(--pc-line);
  border-top: 3px solid var(--orange);
  transition: transform .18s ease, background-color .18s ease, border-color .18s ease;
}

.page-contact .partner-card:hover {
  transform: translateY(-3px);
  background: var(--ink-700);
  border-color: var(--line-strong);
  border-top-color: var(--green);
}

.page-contact .partner-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  line-height: 1.5;
  color: var(--white);
}

.page-contact .partner-card__body {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--text-dim);
}

.page-contact .closing {
  margin-top: 34px;
  padding-top: 24px;
  border-top: 1px solid var(--pc-line);
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.page-contact .closing__text {
  margin: 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--text-dim);
}

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

/* ---------- 断点 ---------- */
@media (min-width: 760px) {
  .page-contact .partner-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .comm-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr);
    gap: 40px;
    align-items: start;
  }

  .page-contact .closing {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-split {
    grid-template-columns: 302px minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-contact .contact-split__rail {
    position: sticky;
    top: calc(var(--topbar-h) + 20px);
  }

  .page-contact .mail-card {
    grid-template-columns: minmax(0, 1fr) minmax(220px, .5fr);
    align-items: start;
    gap: 40px;
    padding: 32px 30px;
  }

  .page-contact .prep-sheet {
    padding: 30px 32px 34px;
  }

  .page-contact .comm-row {
    grid-template-columns: 132px minmax(0, 1fr);
    align-items: baseline;
  }

  .page-contact .comm-row__note {
    grid-column: 2 / 3;
  }
}

@media (min-width: 1200px) {
  .page-contact .contact-hero__head {
    padding-left: 30px;
  }

  .page-contact .contact-hero {
    padding-top: 44px;
  }
}