.page-contact {
  --pc-gap: 20px;
  --pc-card-ink: #28352f;
  --pc-card-muted: #4b5b55;
  background: var(--lz-ink);
  color: var(--lz-paper);
  overflow-x: hidden;
  padding-bottom: clamp(36px, 6vw, 76px);
}

.page-contact .lz-breadcrumb {
  padding-top: 20px;
  font-size: 13.5px;
  color: var(--lz-mist);
}

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

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

/* ---------- 首屏标题区 ---------- */
.page-contact__head {
  padding: clamp(22px, 4vw, 46px) 0 clamp(18px, 3vw, 32px);
}

.page-contact__title {
  margin: 12px 0 0;
  max-width: 17ch;
  font-size: clamp(30px, 5.6vw, 62px);
  line-height: 1.04;
  font-weight: 900;
  letter-spacing: -.01em;
  color: var(--lz-paper);
}

.page-contact__lead {
  margin-top: 18px;
  max-width: 64ch;
  color: var(--lz-mist);
}

/* ---------- 宽大联络面板 ---------- */
.page-contact__desk {
  padding-bottom: clamp(40px, 6vw, 74px);
}

.page-contact__panel {
  display: grid;
  grid-template-columns: 1fr;
  padding: 0;
  overflow: hidden;
  background: var(--lz-paper);
  color: var(--lz-text);
  border-radius: var(--lz-radius);
  box-shadow: 0 26px 64px rgba(0, 0, 0, .44);
}

.page-contact__panel-body {
  padding: clamp(22px, 4vw, 48px);
}

.page-contact__panel-heading {
  margin: 10px 0 26px;
  font-size: clamp(20px, 2.6vw, 30px);
  line-height: 1.2;
  font-weight: 800;
  color: var(--lz-text);
}

.page-contact__channels {
  display: grid;
  gap: 18px;
  margin: 0;
}

.page-contact__channel {
  border-top: 1px solid rgba(16, 28, 24, .14);
  padding-top: 14px;
}

.page-contact__channel dt {
  margin-bottom: 8px;
  font-size: 12px;
  letter-spacing: .16em;
  color: #5d6d66;
}

.page-contact__mono {
  display: block;
  font-family: var(--lz-font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(15px, 3.1vw, 30px);
  line-height: 1.24;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--lz-green);
  overflow-wrap: anywhere;
}

.page-contact__note {
  margin: 22px 0 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.75;
  color: #3b4b45;
}

.page-contact__cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 24px 0 0;
}

.page-contact__panel-media {
  margin: 0;
  min-height: 220px;
}

.page-contact__panel-media img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 220px;
  object-fit: cover;
}

/* ---------- 合作方向 ---------- */
.page-contact__coop {
  padding-bottom: clamp(36px, 5vw, 66px);
}

.page-contact__coop-head {
  display: grid;
  gap: 10px;
  margin-bottom: 24px;
}

.page-contact__h2 {
  margin: 0;
  max-width: 24ch;
  font-size: clamp(22px, 3.4vw, 38px);
  line-height: 1.16;
  font-weight: 800;
  color: var(--lz-paper);
}

.page-contact__coop-media {
  margin: 0 0 28px;
  border-radius: var(--lz-radius);
  overflow: hidden;
}

.page-contact__coop-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 8;
  object-fit: cover;
}

.page-contact__cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
}

.page-contact__card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 22px 20px 20px;
  background: var(--lz-paper);
  color: var(--lz-text);
  border-radius: var(--lz-radius);
  border-top: 4px solid var(--lz-gold);
  transition: transform .28s var(--lz-ease), box-shadow .28s var(--lz-ease);
}

.page-contact__card:nth-child(2) { border-top-color: var(--lz-blue); }
.page-contact__card:nth-child(3) { border-top-color: var(--lz-green); }
.page-contact__card:nth-child(4) { border-top-color: var(--lz-mist); }

.page-contact__card-no {
  font-family: var(--lz-font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: .2em;
  color: #5d6d66;
}

.page-contact__card h3 {
  margin: 0;
  font-size: 17px;
  line-height: 1.35;
  font-weight: 800;
  color: var(--lz-text);
}

.page-contact__card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: #3b4b45;
}

.page-contact__card-need {
  margin-top: auto;
  max-height: 0;
  overflow: hidden;
  padding-top: 0;
  opacity: 0;
  border-top: 1px dashed rgba(16, 28, 24, .22);
  font-size: 13px;
  line-height: 1.66;
  color: var(--pc-card-muted);
  transition: max-height .34s var(--lz-ease), opacity .34s var(--lz-ease), padding-top .34s var(--lz-ease);
}

/* ---------- 来信指引 ---------- */
.page-contact__guide {
  padding-bottom: clamp(36px, 5vw, 66px);
}

.page-contact__guide-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.page-contact__muted {
  margin: 12px 0 0;
  max-width: 34ch;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--lz-mist);
}

.page-contact__guide-panel {
  background: var(--lz-paper);
  color: var(--lz-text);
  border-radius: var(--lz-radius);
  padding: clamp(20px, 3.4vw, 36px);
}

.page-contact__h3 {
  margin: 0 0 18px;
  font-size: 15px;
  letter-spacing: .08em;
  font-weight: 700;
  color: #5d6d66;
}

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

.page-contact__list li {
  position: relative;
  padding-left: 18px;
  font-size: 15.5px;
  line-height: 1.74;
  color: var(--pc-card-ink);
}

.page-contact__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .64em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--lz-green);
}

.page-contact__list strong {
  color: var(--lz-text);
  font-weight: 800;
}

/* ---------- 回复节奏 ---------- */
.page-contact__flow {
  padding-bottom: clamp(36px, 5vw, 66px);
}

.page-contact__steps {
  display: grid;
  gap: 16px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact__step {
  position: relative;
  padding: 20px 20px 20px 62px;
  background: var(--lz-glass);
  border: 1px solid var(--lz-line);
  border-left: 3px solid var(--lz-lime);
  border-radius: var(--lz-radius);
}

.page-contact__step-no {
  position: absolute;
  left: 18px;
  top: 21px;
  font-family: var(--lz-font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 14px;
  letter-spacing: .08em;
  color: var(--lz-gold);
}

.page-contact__step h3 {
  margin: 0 0 8px;
  font-size: 16.5px;
  line-height: 1.35;
  font-weight: 800;
  color: var(--lz-paper);
}

.page-contact__step p {
  margin: 0;
  max-width: 64ch;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--lz-mist);
}

/* ---------- 地址与备案窄条 ---------- */
.page-contact__strip {
  padding-bottom: clamp(24px, 4vw, 48px);
}

.page-contact__strip-inner {
  display: grid;
  gap: 18px;
  padding: 22px clamp(18px, 3vw, 32px);
  background: var(--lz-green);
  border: 1px solid rgba(124, 255, 107, .24);
  border-radius: var(--lz-radius);
}

.page-contact__pin {
  display: none;
  width: 96px;
  height: 48px;
}

.page-contact__pin line {
  stroke: var(--lz-mist);
  stroke-width: 1;
}

.page-contact__pin circle:first-of-type {
  fill: none;
  stroke: var(--lz-lime);
  stroke-width: 1.5;
  opacity: .8;
}

.page-contact__pin circle:last-of-type {
  fill: var(--lz-lime);
  stroke: none;
}

.page-contact__strip-item {
  display: grid;
  gap: 5px;
  min-width: 0;
}

.page-contact__strip-key {
  font-family: var(--lz-font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--lz-lime);
}

.page-contact__strip-val {
  font-size: 15px;
  line-height: 1.6;
  color: var(--lz-paper);
  overflow-wrap: anywhere;
}

.page-contact__strip-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  font-size: 15px;
}

.page-contact__strip-links a {
  color: var(--lz-paper);
  text-decoration: none;
  border-bottom: 1px solid rgba(243, 239, 228, .42);
  padding-bottom: 1px;
}

.page-contact__strip-links a:hover,
.page-contact__strip-links a:focus-visible {
  color: var(--lz-lime);
  border-bottom-color: var(--lz-lime);
}

/* ---------- 渐进增强 ---------- */
.page-contact.lz-js [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .28s var(--lz-ease), transform .28s var(--lz-ease);
}

.page-contact.lz-js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

@media (hover: hover) {
  .page-contact__card:hover,
  .page-contact__card:focus-within {
    transform: translateY(-6px);
    box-shadow: 0 18px 42px rgba(0, 0, 0, .45);
  }

  .page-contact__card:hover .page-contact__card-need,
  .page-contact__card:focus-within .page-contact__card-need {
    max-height: 220px;
    padding-top: 12px;
    opacity: 1;
  }
}

@media (hover: none) {
  .page-contact__card-need {
    max-height: none;
    padding-top: 12px;
    opacity: 1;
  }
}

/* ---------- 平板 ---------- */
@media (min-width: 720px) {
  .page-contact__cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .page-contact__panel {
    grid-template-columns: minmax(0, 1.42fr) minmax(0, .9fr);
  }

  .page-contact__panel-media {
    min-height: 100%;
  }

  .page-contact__guide-grid {
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }

  .page-contact__strip-inner {
    grid-template-columns: auto minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
    gap: 32px;
  }

  .page-contact__pin {
    display: block;
  }
}

/* ---------- 桌面：四张不等高卡片错位 ---------- */
@media (min-width: 1080px) {
  .page-contact__cards {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    align-items: start;
  }

  .page-contact__card:nth-child(1) { margin-top: 0; }
  .page-contact__card:nth-child(2) { margin-top: 42px; }
  .page-contact__card:nth-child(3) { margin-top: 14px; }
  .page-contact__card:nth-child(4) { margin-top: 58px; }

  .page-contact__steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact.lz-js [data-reveal],
  .page-contact.lz-js [data-reveal].is-visible {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .page-contact__card,
  .page-contact__card-need {
    transition: none;
  }
}