.page-contact {
  --contact-tint: #FBF6EC;
  --contact-gap: clamp(2rem, 5vw, 4rem);
  --contact-pad: clamp(1.25rem, 2.5vw, 2rem);
  --contact-rule: rgba(42, 31, 23, .14);
}

/* ============ 首屏 ============ */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(2.25rem, 6vw, 4rem) clamp(3.5rem, 9vw, 6rem);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(247, 249, 255, .04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(247, 249, 255, .04) 1px, transparent 1px);
  background-size: 56px 56px;
  opacity: .7;
}

.page-contact .contact-hero .crumbs {
  position: relative;
  z-index: 1;
  margin-bottom: clamp(1.5rem, 4vw, 2.25rem);
}

.page-contact .contact-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-gap);
  align-items: center;
}

.page-contact .contact-hero__lead h1 {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 4.6vw, 2.75rem);
  font-weight: 700;
  line-height: 1.14;
  letter-spacing: -.02em;
  color: var(--edge);
  margin: .85rem 0 1.15rem;
}

.page-contact .contact-hero__lead > p {
  max-width: var(--measure);
  color: var(--edge);
  opacity: .8;
  font-size: 1rem;
  line-height: 1.78;
  margin: 0 0 1rem;
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: 1.65rem;
}

.page-contact .contact-hero__visual {
  display: none;
}

.page-contact .contact-hero__visual svg {
  display: block;
  width: 100%;
  height: auto;
}

/* ============ 联系展签区 ============ */
.page-contact .contact-deck {
  padding-block: clamp(3rem, 9vw, 6rem);
}

.page-contact .contact-deck__grid {
  row-gap: var(--contact-gap);
}

.page-contact .contact-figure {
  margin-bottom: var(--contact-pad);
}

.page-contact .contact-figure .figure__frame {
  aspect-ratio: 14 / 9;
  overflow: hidden;
  border: 1px solid var(--contact-rule);
  border-radius: var(--r);
  background: var(--paper);
}

.page-contact .contact-figure .figure__frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-contact .contact-card {
  position: relative;
  border: 1px solid var(--contact-rule);
  border-radius: var(--r);
  background: var(--contact-tint);
  padding: var(--contact-pad);
  box-shadow: var(--shadow);
  margin-bottom: 1.25rem;
}

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

.page-contact .contact-card::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 1.1rem;
  width: 2.75rem;
  height: 2px;
  background: var(--orange);
}

.page-contact .contact-card__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .45rem;
  margin-bottom: .85rem;
}

.page-contact .contact-card__title {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2.6vw, 1.3rem);
  font-weight: 600;
  letter-spacing: -.008em;
  color: var(--ink);
  margin: 0 0 .9rem;
}

.page-contact .contact-card__address {
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2.4vw, 1.3rem);
  font-weight: 500;
  letter-spacing: -.008em;
  word-break: break-all;
  color: var(--ink);
  background: var(--paper-alt);
  border-left: 3px solid var(--orange);
  border-radius: 0 var(--r) var(--r) 0;
  padding: .85rem 1rem;
  margin: 0 0 1.1rem;
  user-select: all;
  cursor: text;
}

.page-contact .contact-card__body {
  font-size: .95rem;
  line-height: 1.75;
  color: var(--ink);
  opacity: .82;
  margin: 0;
}

.page-contact .contact-card__list {
  display: grid;
  gap: 1rem;
  margin: 0 0 1.15rem;
}

.page-contact .contact-card__list dt {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--grey);
  margin-bottom: .3rem;
}

.page-contact .contact-card__list dd {
  margin: 0;
  font-size: .98rem;
  line-height: 1.62;
  color: var(--ink);
  word-break: break-word;
}

.page-contact .contact-card__list dd.num {
  font-family: var(--font-mono);
  font-size: clamp(1.05rem, 2.4vw, 1.25rem);
  font-weight: 500;
  letter-spacing: .01em;
  font-variant-numeric: tabular-nums;
}

/* ============ 准备清单 ============ */
.page-contact .prep {
  margin-bottom: clamp(2.25rem, 6vw, 3.25rem);
}

.page-contact .prep-list {
  list-style: none;
  margin: 1.85rem 0 0;
  padding: 0;
  border-top: 1px solid var(--contact-rule);
}

.page-contact .prep-list__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: .9rem;
  padding: 1.2rem .6rem;
  border-bottom: 1px solid var(--contact-rule);
  transition: background-color .2s ease;
}

.page-contact .prep-list__item:hover {
  background: var(--paper-alt);
}

.page-contact .prep-list__num {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .06em;
  color: var(--orange);
  padding-top: .22rem;
  font-variant-numeric: tabular-nums;
}

.page-contact .prep-list__body h3 {
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 600;
  letter-spacing: -.005em;
  color: var(--ink);
  margin: 0 0 .4rem;
}

.page-contact .prep-list__body p {
  margin: 0;
  font-size: .93rem;
  line-height: 1.75;
  color: var(--ink);
  opacity: .8;
}

/* ============ 自助入口 ============ */
.page-contact .shortcut {
  position: relative;
  border: 1px solid var(--contact-rule);
  border-radius: var(--r);
  background: var(--contact-tint);
  padding: var(--contact-pad);
}

.page-contact .shortcut::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 1.1rem;
  width: 2.75rem;
  height: 2px;
  background: var(--cyan);
}

.page-contact .shortcut__title {
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 2.5vw, 1.2rem);
  font-weight: 600;
  letter-spacing: -.008em;
  color: var(--ink);
  margin: 0 0 .7rem;
}

.page-contact .shortcut > p:first-of-type {
  font-size: .94rem;
  line-height: 1.72;
  color: var(--ink);
  opacity: .82;
  margin: 0 0 1.15rem;
}

.page-contact .shortcut__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-bottom: 1rem;
}

.page-contact .shortcut__note {
  font-size: .85rem;
  line-height: 1.7;
  color: var(--ink);
  opacity: .68;
  margin: 0;
}

.page-contact .shortcut .btn--ghost {
  transition: background-color .24s ease, color .24s ease, border-color .24s ease;
}

.page-contact .shortcut .btn--ghost:hover,
.page-contact .shortcut .btn--ghost:focus-visible {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--edge);
}

/* ============ 数据合作 ============ */
.page-contact .contact-coop {
  position: relative;
  overflow: hidden;
  padding-block: clamp(3rem, 9vw, 6rem);
}

.page-contact .contact-coop::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(247, 249, 255, .04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(247, 249, 255, .04) 1px, transparent 1px);
  background-size: 44px 44px;
  opacity: .55;
}

.page-contact .contact-coop .container {
  position: relative;
  z-index: 1;
}

.page-contact .contact-coop__lead {
  margin-bottom: clamp(2rem, 5vw, 3rem);
}

.page-contact .contact-coop__lead p {
  max-width: var(--measure);
  font-size: 1rem;
  line-height: 1.78;
  color: var(--edge);
  opacity: .82;
  margin: 0;
}

.page-contact .contact-coop__cards {
  row-gap: 1rem;
  margin-bottom: clamp(2rem, 5vw, 3.25rem);
}

.page-contact .coop-card {
  position: relative;
  border: 1px solid var(--line-dark);
  border-radius: var(--r);
  background: var(--midnight);
  padding: var(--contact-pad);
  box-shadow: var(--shadow);
  transition: border-color .24s ease, transform .24s ease;
}

.page-contact .coop-card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: .9rem;
  height: .9rem;
  border-top: 1px solid var(--cyan);
  border-right: 1px solid var(--cyan);
  opacity: .55;
}

.page-contact .coop-card:hover {
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-contact .coop-card__title {
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-weight: 600;
  letter-spacing: -.005em;
  color: var(--edge);
  margin: .9rem 0 .6rem;
}

.page-contact .coop-card p {
  margin: 0;
  font-size: .92rem;
  line-height: 1.75;
  color: var(--edge);
  opacity: .76;
}

.page-contact .contact-coop__materials {
  row-gap: 2rem;
  align-items: start;
}

.page-contact .contact-coop__sub {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -.005em;
  color: var(--edge);
  margin: 0 0 1rem;
}

.page-contact .material-list {
  list-style: none;
  margin: 0 0 1.15rem;
  padding: 0;
  border-top: 1px solid var(--line-dark);
}

.page-contact .material-list li {
  padding: .8rem 0;
  border-bottom: 1px solid var(--line-dark);
  font-size: .93rem;
  line-height: 1.7;
  color: var(--edge);
  opacity: .8;
}

.page-contact .contact-coop__note {
  font-size: .92rem;
  line-height: 1.75;
  color: var(--edge);
  opacity: .78;
  margin: 0;
}

.page-contact .contact-coop__note .mono {
  color: var(--cyan);
}

.page-contact .coop-board {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line-dark);
  border: 1px solid var(--line-dark);
  border-radius: var(--r);
  overflow: hidden;
  margin-bottom: 1rem;
}

.page-contact .coop-board__tick {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 5.5rem;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  letter-spacing: .04em;
  color: var(--cyan);
  background: rgba(11, 18, 32, .55);
}

.page-contact .coop-board__tick:nth-child(even) {
  color: var(--orange);
}

.page-contact .contact-coop__legend {
  font-size: .88rem;
  line-height: 1.7;
  color: var(--edge);
  opacity: .66;
  margin: 0;
}

/* ============ 收束区 ============ */
.page-contact .contact-close {
  padding-block: clamp(3rem, 9vw, 6rem);
}

.page-contact .contact-close__lead {
  margin-bottom: clamp(2rem, 5vw, 3rem);
}

.page-contact .contact-close__lead h2 {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3.4vw, 2rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -.015em;
  color: var(--ink);
  margin: .85rem 0 1rem;
}

.page-contact .contact-close__lead p {
  max-width: var(--measure);
  font-size: 1rem;
  line-height: 1.78;
  color: var(--ink);
  opacity: .8;
  margin: 0;
}

.page-contact .contact-close__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: 1.6rem;
}

.page-contact .contact-close__visual {
  margin: 0;
}

.page-contact .contact-close__visual .figure__frame {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid var(--contact-rule);
  border-radius: var(--r);
  background: var(--paper);
}

.page-contact .contact-close__visual .figure__frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ============ 响应式 ============ */
@media (min-width: 720px) {
  .page-contact .contact-coop__cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.1rem;
  }

  .page-contact .coop-board {
    grid-template-columns: repeat(6, 1fr);
  }

  .page-contact .coop-board__tick {
    min-height: 6.5rem;
    font-size: 1.3rem;
  }
}

@media (min-width: 860px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(2.5rem, 6vw, 5rem);
  }

  .page-contact .contact-hero__visual {
    display: block;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-deck__grid {
    column-gap: clamp(2.5rem, 5vw, 4.5rem);
    align-items: start;
  }
}

@media (min-width: 1080px) {
  .page-contact .contact-coop__materials {
    column-gap: clamp(2rem, 4vw, 3.5rem);
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .coop-card,
  .page-contact .prep-list__item,
  .page-contact .shortcut .btn--ghost {
    transition: none;
  }

  .page-contact .coop-card:hover {
    transform: none;
  }
}
</main>