.page-contact {
  --pc-pad: clamp(3.25rem, 8vw, 6.5rem);
  --pc-rule: 2px solid rgba(200, 210, 221, 0.35);
  background: var(--c-night);
  color: var(--c-ivory);
  overflow-x: clip;
}

.page-contact .pc-band {
  padding-block: var(--pc-pad);
}

.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding-top: clamp(1.25rem, 4vw, 2.25rem);
  font-family: var(--f-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--c-steel);
}

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

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

/* ---------- 首屏 ---------- */

.page-contact .lead__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 5vw, 3rem);
}

.page-contact .lead h1 {
  margin: 0.9rem 0 1.4rem;
  max-width: 12em;
  font-family: var(--f-display);
  font-weight: 900;
  line-height: 0.94;
  letter-spacing: -0.02em;
}

.page-contact .lead .lede {
  max-width: 36rem;
}

.page-contact .lead__aside {
  align-self: start;
  border: var(--hard-line);
  box-shadow: var(--hard-shadow);
  background: rgba(14, 58, 60, 0.5);
  padding: 1.35rem 1.4rem 1.5rem;
}

.page-contact .lead__hours {
  margin: 0.65rem 0 0.7rem;
  font-family: var(--f-mono);
  font-size: clamp(1.15rem, 4vw, 1.55rem);
  letter-spacing: 0.02em;
  color: var(--c-orange);
}

.page-contact .lead__dash {
  padding-inline: 0.15em;
}

.page-contact .lead__aside-note {
  margin: 0;
  color: var(--c-steel);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ---------- 联系方式海报 ---------- */

.page-contact .contact-board {
  background: var(--c-deep);
  border-block: var(--hard-line);
}

.page-contact .board-title {
  margin: 0.7rem 0 0;
  font-family: var(--f-display);
  font-size: clamp(1.75rem, 5.5vw, 2.9rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.015em;
}

.page-contact .board-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.25rem, 3vw, 2rem);
  margin-top: clamp(1.75rem, 4vw, 2.75rem);
}

.page-contact .board-cell {
  border: var(--hard-line);
  box-shadow: var(--hard-shadow);
  background: rgba(10, 26, 47, 0.6);
  padding: clamp(1.5rem, 4vw, 2.25rem);
  transition: box-shadow 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-contact .board-cell:hover {
  transform: translate(-3px, -3px);
  box-shadow: 8px 8px 0 rgba(255, 106, 31, 0.45);
}

.page-contact .board-value {
  margin: 0.75rem 0 0.9rem;
  font-family: var(--f-mono);
  font-weight: 500;
  font-size: clamp(1.25rem, 5.6vw, 2.5rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  overflow-wrap: anywhere;
}

.page-contact .board-cell--mail .board-value {
  color: var(--c-green);
}

.page-contact .board-cell--tel .board-value {
  color: var(--c-orange);
}

.page-contact .board-note {
  margin: 0;
  max-width: 34rem;
  color: var(--c-steel);
  font-size: 0.95rem;
  line-height: 1.75;
}

.page-contact .board-addr {
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
  border: var(--hard-line);
  box-shadow: var(--hard-shadow);
  background: var(--c-night);
  padding: clamp(1.25rem, 4vw, 2rem);
}

.page-contact .board-addr__line {
  margin: 0.6rem 0 0.75rem;
  font-family: var(--f-display);
  font-size: clamp(1.1rem, 3.8vw, 1.7rem);
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.page-contact .board-addr__note {
  margin: 0.25rem 0 0;
  color: var(--c-steel);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ---------- 街区横幅 ---------- */

.page-contact .site-strip {
  margin: 0;
}

.page-contact .site-strip__frame {
  overflow: hidden;
  clip-path: polygon(0 2%, 100% 0, 100% 100%, 0 98%);
}

.page-contact .site-strip__frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.05);
}

.page-contact .site-strip__cap {
  display: block;
  padding: 1.1rem 1.25rem 0;
}

/* ---------- 需求分类 ---------- */

.page-contact .needs__title {
  margin: 0.7rem 0 1.1rem;
  font-family: var(--f-display);
  font-size: clamp(1.9rem, 6vw, 3.3rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.02em;
}

.page-contact .needs__lede {
  max-width: 36rem;
  margin: 0;
}

.page-contact .needs__stack {
  margin-top: clamp(1.75rem, 4vw, 2.75rem);
  max-width: 58rem;
  border-top: var(--hard-line);
}

.page-contact .need {
  border-bottom: var(--hard-line);
}

.page-contact .need__summary {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.35rem 1rem;
  align-items: baseline;
  padding: 1.15rem 0;
  cursor: pointer;
  list-style: none;
}

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

.page-contact .need__summary:focus-visible {
  outline: 2px solid var(--c-orange);
  outline-offset: 4px;
}

.page-contact .need__num {
  font-family: var(--f-mono);
  font-size: 0.85rem;
  color: var(--c-orange);
}

.page-contact .need__label {
  font-family: var(--f-display);
  font-size: clamp(1.2rem, 4.2vw, 1.85rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--c-ivory);
  transition: color 0.25s var(--ease);
}

.page-contact .need__summary:hover .need__label {
  color: var(--c-orange);
}

.page-contact .need__hint {
  grid-column: 2 / 3;
  color: var(--c-steel);
  font-size: 0.9rem;
  line-height: 1.6;
}

.page-contact .need__summary::after {
  grid-column: 3;
  grid-row: 1 / span 2;
  align-self: center;
  content: "+";
  font-family: var(--f-mono);
  font-size: 1.3rem;
  color: var(--c-orange);
  line-height: 1;
}

.page-contact .need[open] .need__summary::after {
  content: "−";
}

.page-contact .need__body {
  max-width: 44rem;
  padding: 0 0 1.65rem;
}

.page-contact .need__body p {
  margin: 0 0 1rem;
  color: var(--c-steel);
  font-size: 0.98rem;
  line-height: 1.85;
}

.page-contact .need__points {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.5rem;
}

.page-contact .need__points li {
  position: relative;
  padding-left: 1.4rem;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--c-ivory);
}

.page-contact .need__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 0.6rem;
  height: 2px;
  background: var(--c-orange);
}

/* ---------- 回复节奏（象牙白反转区） ---------- */

.page-contact .rhythm {
  background: var(--c-ivory);
  color: var(--c-ink);
  border-block: var(--hard-line);
}

.page-contact .rhythm__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
}

.page-contact .rhythm__title {
  margin: 0.7rem 0 0;
  max-width: 11em;
  font-family: var(--f-display);
  font-size: clamp(1.9rem, 6vw, 3.3rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.02em;
}

.page-contact .rhythm__body p {
  margin: 0 0 1.4rem;
  max-width: 38rem;
  color: #2b3a4c;
  font-size: 1rem;
  line-height: 1.9;
}

.page-contact .rhythm__steps {
  margin: 0;
  padding: 0;
  list-style: none;
  max-width: 42rem;
  border-top: 2px solid var(--c-ink);
}

.page-contact .rhythm__steps li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.35rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid rgba(6, 16, 32, 0.25);
  font-size: 0.95rem;
  line-height: 1.75;
  color: #2b3a4c;
}

.page-contact .rhythm__tag {
  font-family: var(--f-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--c-orange);
}

/* ---------- 合作方向 ---------- */

.page-contact .partners {
  background: var(--c-violet);
}

.page-contact .partners__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 5vw, 3.5rem);
}

.page-contact .partners__media .media-frame {
  aspect-ratio: 26 / 17;
  box-shadow: 10px 10px 0 rgba(10, 26, 47, 0.55);
}

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

.page-contact .partners__title {
  margin: 0.7rem 0 1.1rem;
  font-family: var(--f-display);
  font-size: clamp(1.8rem, 5.5vw, 3rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.02em;
}

.page-contact .partners__lead {
  margin: 0;
  max-width: 36rem;
  color: var(--c-silver);
  font-size: 0.98rem;
  line-height: 1.85;
}

.page-contact .partners__points {
  margin: 1.6rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.85rem;
}

.page-contact .partners__points li {
  border-left: 3px solid var(--c-orange);
  padding-left: 0.95rem;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--c-silver);
}

.page-contact .partners__points strong {
  color: var(--c-ivory);
  font-weight: 700;
}

.page-contact .partners .btn {
  margin-top: 1.8rem;
}

/* ---------- 自助入口 ---------- */

.page-contact .selfserve {
  background: var(--c-deep);
  border-top: var(--hard-line);
}

.page-contact .selfserve__title {
  margin: 0.7rem 0 0;
  font-family: var(--f-display);
  font-size: clamp(1.8rem, 5.5vw, 3rem);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -0.02em;
}

.page-contact .selfserve__list {
  margin: clamp(1.5rem, 4vw, 2.5rem) 0 0;
  padding: 0;
  list-style: none;
  border-top: var(--pc-rule);
}

.page-contact .selfserve__item {
  border-bottom: var(--pc-rule);
}

.page-contact .selfserve__link {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.4rem 1.1rem;
  padding: 1.15rem 0;
  color: var(--c-ivory);
  text-decoration: none;
}

.page-contact .selfserve__num {
  font-family: var(--f-mono);
  font-size: 0.8rem;
  color: var(--c-orange);
  padding-top: 0.35rem;
}

.page-contact .selfserve__name {
  font-family: var(--f-display);
  font-size: clamp(1.15rem, 4vw, 1.6rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  transition: color 0.25s var(--ease), transform 0.25s var(--ease);
}

.page-contact .selfserve__link:hover .selfserve__name,
.page-contact .selfserve__link:focus-visible .selfserve__name {
  color: var(--c-orange);
  transform: translateX(4px);
}

.page-contact .selfserve__desc {
  grid-column: 2 / -1;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  color: var(--c-steel);
  font-size: 0.92rem;
  line-height: 1.7;
  transition: max-height 0.35s var(--ease), opacity 0.3s var(--ease);
}

.page-contact .selfserve__link:focus-visible {
  outline: 2px solid var(--c-orange);
  outline-offset: 4px;
}

@media (hover: hover) and (min-width: 768px) {
  .page-contact .selfserve__link:hover .selfserve__desc,
  .page-contact .selfserve__link:focus-visible .selfserve__desc {
    max-height: 5rem;
    opacity: 1;
  }
}

/* ---------- 中屏 ---------- */

@media (min-width: 768px) {
  .page-contact .lead__grid {
    grid-template-columns: 1.6fr 1fr;
    align-items: start;
  }

  .page-contact .board-grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-contact .rhythm__grid {
    grid-template-columns: 0.9fr 1.1fr;
    align-items: start;
  }

  .page-contact .rhythm__steps li {
    grid-template-columns: 5rem 1fr;
    gap: 1rem;
  }

  .page-contact .selfserve__desc {
    max-height: none;
    opacity: 1;
  }
}

/* ---------- 宽屏 ---------- */

@media (min-width: 1024px) {
  .page-contact .need__summary {
    grid-template-columns: 3.5rem 1fr auto;
    padding: 1.35rem 0;
  }

  .page-contact .partners__grid {
    grid-template-columns: 1.05fr 1fr;
    align-items: center;
  }

  .page-contact .selfserve__link {
    grid-template-columns: 3.5rem 13rem 1fr;
    align-items: start;
  }

  .page-contact .selfserve__desc {
    grid-column: 3 / -1;
    max-height: 0;
    opacity: 0;
  }
}

@media (hover: hover) and (min-width: 1024px) {
  .page-contact .selfserve__link:hover .selfserve__desc,
  .page-contact .selfserve__link:focus-visible .selfserve__desc {
    max-height: 5rem;
    opacity: 1;
  }
}