.page-contact {
  --contact-line: rgba(198, 255, 74, 0.34);
  --contact-soft: rgba(143, 163, 184, 0.18);
  background:
    radial-gradient(880px 520px at 88% -8%, rgba(56, 225, 198, 0.12), transparent 62%),
    radial-gradient(700px 420px at 0% 10%, rgba(255, 138, 61, 0.07), transparent 60%),
    var(--ink);
  color: var(--text);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  padding-top: 22px;
}
.page-contact .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
}
.page-contact .breadcrumb__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-dim);
}
.page-contact .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  color: var(--line);
}
.page-contact .breadcrumb__link {
  color: var(--mute);
  text-decoration: none;
}
.page-contact .breadcrumb__link:hover,
.page-contact .breadcrumb__link:focus-visible {
  color: var(--lime);
}
.page-contact .breadcrumb__current {
  color: var(--paper);
}

/* ---------- 首屏框景 ---------- */
.page-contact .contact-hero {
  padding: 18px 0 clamp(28px, 5vw, 48px);
}
.page-contact .contact-hero__frame {
  position: relative;
  padding: clamp(22px, 4.4vw, 54px);
  background: var(--grad-hero);
  border: 2px solid var(--contact-line);
  box-shadow: var(--shadow-hard);
}
.page-contact .contact-hero__frame::before,
.page-contact .contact-hero__frame::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid var(--lime);
}
.page-contact .contact-hero__frame::before {
  top: -2px;
  left: -2px;
  border-right: 0;
  border-bottom: 0;
}
.page-contact .contact-hero__frame::after {
  right: -2px;
  bottom: -2px;
  border-top: 0;
  border-left: 0;
}
.page-contact .contact-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 9vw, 76px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--paper);
}
.page-contact .contact-hero__lead {
  margin: 18px 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--text-dim);
}
.page-contact .contact-hero__quick {
  display: grid;
  gap: 12px;
  margin: 26px 0 0;
  padding: 18px 0 0;
  list-style: none;
  border-top: 1px dashed var(--contact-soft);
}
.page-contact .contact-hero__quick-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 14px;
  color: var(--paper);
}
.page-contact .contact-hero__quick-k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--lime);
}
.page-contact .contact-hero__quick-item .u-mono {
  word-break: break-word;
}
.page-contact .contact-hero__ruler {
  display: flex;
  justify-content: space-between;
  margin-top: 14px;
  padding-top: 10px;
  border-top: 2px solid var(--contact-line);
  background-image: repeating-linear-gradient(90deg, var(--contact-soft) 0 1px, transparent 1px 34px);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--mute);
}

/* ---------- 栏目索引 ---------- */
.page-contact .contact-rail {
  position: sticky;
  top: var(--header-h);
  z-index: 8;
  margin-top: clamp(18px, 4vw, 32px);
  background: rgba(10, 24, 48, 0.94);
  border-top: 2px solid var(--contact-soft);
  border-bottom: 2px solid var(--contact-soft);
  backdrop-filter: blur(10px);
}
.page-contact .contact-rail__list {
  display: flex;
  align-items: stretch;
  gap: 4px;
  margin: 0;
  overflow-x: auto;
  scrollbar-width: thin;
}
.page-contact .contact-rail__list > li {
  flex: 0 0 auto;
}
.page-contact .contact-rail__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 14px 12px;
  font-size: 13px;
  color: var(--text-dim);
  text-decoration: none;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.page-contact .contact-rail__link:hover,
.page-contact .contact-rail__link:focus-visible,
.page-contact .contact-rail__link.is-active,
.page-contact .contact-rail__link[aria-current] {
  color: var(--paper);
  border-bottom-color: var(--lime);
}
.page-contact .contact-rail__num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--orange);
}

/* ---------- 通用区块 ---------- */
.page-contact .contact-block {
  padding: clamp(44px, 7vw, 88px) 0;
}
.page-contact .contact-block + .contact-block {
  border-top: 2px solid var(--contact-soft);
}
.page-contact .display-lg {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(27px, 5.4vw, 46px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--paper);
}
.page-contact .contact-lede {
  margin: 16px 0 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-dim);
}
.page-contact .text-link {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid var(--contact-line);
}
.page-contact .text-link:hover,
.page-contact .text-link:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--paper);
}

/* ---------- 图像容器 ---------- */
.page-contact .media {
  margin: 0;
}
.page-contact .media__frame {
  position: relative;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border: 2px solid var(--contact-soft);
  background: var(--night);
}
.page-contact .media__img {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.page-contact .media__badge {
  position: absolute;
  left: 12px;
  bottom: 12px;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--ink);
  background: var(--lime);
}
.page-contact .media__caption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--mute);
}
.page-contact .media--framed .media__frame {
  box-shadow: 10px 10px 0 rgba(198, 255, 74, 0.16);
}

/* ---------- 01 联系渠道 ---------- */
.page-contact .channels {
  display: grid;
  gap: clamp(22px, 4vw, 36px);
  margin-top: clamp(22px, 4vw, 38px);
}
.page-contact .channel-list {
  display: grid;
  gap: 14px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}
.page-contact .channel {
  position: relative;
  padding: 20px 20px 20px 24px;
  background: var(--panel);
  border: 2px solid var(--contact-soft);
  box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.42);
}
.page-contact .channel::before {
  content: "";
  position: absolute;
  left: -2px;
  top: -2px;
  bottom: -2px;
  width: 6px;
  background: var(--lime);
}
.page-contact .channel--phone::before {
  background: var(--orange);
}
.page-contact .channel--addr::before {
  background: var(--cyan);
}
.page-contact .channel__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.page-contact .channel__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mute);
}
.page-contact .channel__value {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(16px, 3.4vw, 22px);
  color: var(--paper);
  word-break: break-word;
}
.page-contact .channel__note {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-dim);
}
.page-contact .copy-btn {
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--lime);
  background: transparent;
  border: 1px solid var(--contact-line);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.2s var(--ease), color 0.2s var(--ease);
}
.page-contact .copy-btn:hover,
.page-contact .copy-btn:focus-visible,
.page-contact .copy-btn.is-copied {
  background: var(--lime);
  color: var(--ink);
  border-color: var(--lime);
}
.page-contact .coords-card {
  margin-top: 20px;
  padding: 20px;
  background: var(--night);
  border: 2px solid var(--contact-soft);
  box-shadow: var(--shadow-hard);
}
.page-contact .coords-card__eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}
.page-contact .coords-card__grid {
  margin: 0;
}
.page-contact .coord-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 6px 14px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--contact-soft);
  font-size: 13px;
}
.page-contact .coord-row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}
.page-contact .coord-row dt {
  color: var(--mute);
}
.page-contact .coord-row dd {
  margin: 0;
  font-family: var(--font-mono);
  color: var(--paper);
  word-break: break-word;
}

/* ---------- 02 回复时间 ---------- */
.page-contact .reply {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
  margin-top: clamp(22px, 4vw, 36px);
}
.page-contact .reply__text p {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-dim);
}
.page-contact .reply__list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-dim);
}
.page-contact .expand {
  margin-top: 24px;
  background: var(--panel);
  border: 2px solid var(--contact-soft);
}
.page-contact .expand__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 18px;
  font-size: 14px;
  color: var(--paper);
  cursor: pointer;
  list-style: none;
}
.page-contact .expand__summary::-webkit-details-marker {
  display: none;
}
.page-contact .expand__summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--lime);
}
.page-contact .expand[open] .expand__summary::after {
  content: "–";
}
.page-contact .expand__body {
  padding: 0 18px 18px;
}

/* ---------- 03 合作联络 ---------- */
.page-contact .legend {
  display: grid;
  gap: 14px;
  margin: clamp(24px, 4vw, 36px) 0 0;
  padding: 0;
  list-style: none;
}
.page-contact .legend__item {
  position: relative;
  padding: 20px 20px 20px 26px;
  background: var(--panel);
  border: 2px solid var(--contact-soft);
}
.page-contact .legend__item::before {
  content: "";
  position: absolute;
  left: -2px;
  top: -2px;
  bottom: -2px;
  width: 6px;
  background: var(--lime);
}
.page-contact .legend__item--warm::before {
  background: var(--orange);
}
.page-contact .legend__item--cyan::before {
  background: var(--cyan);
}
.page-contact .legend__item--gold::before {
  background: var(--gold);
}
.page-contact .legend__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 19px;
  color: var(--paper);
}
.page-contact .legend__text {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-dim);
}
.page-contact .cooperation-foot {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mute);
}

/* ---------- 04 数据更正 ---------- */
.page-contact .corrections {
  margin-top: 4px;
}
.page-contact .steps {
  display: grid;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}
.page-contact .step {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 16px;
  padding: 20px 0;
  border-top: 1px solid var(--contact-soft);
}
.page-contact .step:last-child {
  border-bottom: 1px solid var(--contact-soft);
}
.page-contact .step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink);
  background: var(--lime);
}
.page-contact .step:nth-child(2) .step__num {
  background: var(--cyan);
}
.page-contact .step:nth-child(3) .step__num {
  background: var(--orange);
}
.page-contact .step:nth-child(4) .step__num {
  background: var(--gold);
}
.page-contact .step__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 18px;
  color: var(--paper);
}
.page-contact .step__body p {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-dim);
}

/* ---------- 05 署名与备案 ---------- */
.page-contact .plaque {
  display: grid;
  margin-top: clamp(22px, 4vw, 34px);
  background: var(--night);
  border: 2px solid var(--contact-line);
  box-shadow: var(--shadow-hard);
}
.page-contact .plaque__brand {
  padding: clamp(22px, 4vw, 34px);
  border-bottom: 2px solid var(--contact-soft);
}
.page-contact .plaque__eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--gold);
}
.page-contact .plaque__name {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 5vw, 38px);
  letter-spacing: -0.01em;
  color: var(--paper);
}
.page-contact .plaque__desc {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--text-dim);
}
.page-contact .plaque__grid {
  margin: 0;
  padding: clamp(20px, 3vw, 30px);
}
.page-contact .plaque__note {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--mute);
}

/* ---------- 06 地址与到访 ---------- */
.page-contact .arrive {
  display: grid;
  gap: clamp(20px, 4vw, 34px);
  margin-top: clamp(22px, 4vw, 34px);
}
.page-contact .arrive__card {
  position: relative;
  padding: clamp(24px, 4vw, 38px);
  background: linear-gradient(135deg, rgba(255, 138, 61, 0.16) 0%, rgba(198, 255, 74, 0.10) 55%, rgba(56, 225, 198, 0.14) 100%);
  border: 2px solid var(--contact-line);
  box-shadow: var(--shadow-hard);
}
.page-contact .arrive__eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--orange);
}
.page-contact .arrive__addr {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 5.2vw, 40px);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--paper);
}
.page-contact .arrive__hint {
  margin: 16px 0 0;
  max-width: 46ch;
  font-size: 14px;
  line-height: 1.85;
  color: var(--text-dim);
}
.page-contact .arrive__card .btn {
  margin-top: 22px;
}
.page-contact .arrive__grid {
  display: grid;
  align-content: space-between;
  gap: 14px;
  min-height: 240px;
  padding: 20px;
  background-color: var(--night);
  background-image:
    repeating-linear-gradient(0deg, rgba(143, 163, 184, 0.14) 0 1px, transparent 1px 40px),
    repeating-linear-gradient(90deg, rgba(143, 163, 184, 0.14) 0 1px, transparent 1px 40px);
  border: 2px solid var(--contact-soft);
}
.page-contact .arrive__grid-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mute);
}
.page-contact .arrive__grid-pin {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--paper);
}
.page-contact .arrive__grid-dot {
  width: 10px;
  height: 10px;
  background: var(--orange);
  box-shadow: 0 0 0 4px rgba(255, 138, 61, 0.22);
}

/* ---------- 断点 ---------- */
@media (min-width: 760px) {
  .page-contact .contact-hero__quick {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
  .page-contact .legend {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-contact .step {
    grid-template-columns: 60px minmax(0, 1fr);
    gap: 20px;
    padding: 24px 0;
  }
}

@media (min-width: 960px) {
  .page-contact .channels {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
  }
  .page-contact .reply {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
  }
  .page-contact .plaque {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
  .page-contact .plaque__brand {
    border-bottom: 0;
    border-right: 2px solid var(--contact-soft);
  }
  .page-contact .arrive {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: stretch;
  }
}