.page-contact {
  display: block;
  background: var(--ink-900);
  color: var(--paper-100);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.8;
  padding-bottom: 0;
  overflow-x: hidden;
}

.page-contact .contact-shell {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumbs {
  padding: 26px 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
}

.page-contact .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .breadcrumbs__item {
  display: inline-flex;
  align-items: center;
  color: var(--slate-400);
}

.page-contact .breadcrumbs__item:not(:last-child)::after {
  content: "/";
  margin: 0 8px;
  color: var(--line-600);
}

.page-contact .breadcrumbs__link {
  color: var(--slate-400);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .breadcrumbs__link:hover {
  color: var(--gold-200);
  border-bottom-color: var(--gold-400);
}

.page-contact .breadcrumbs__current {
  color: var(--paper-200);
}

/* ---------- 主骨架：左窄右宽 ---------- */
.page-contact .contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px;
  padding-top: 16px;
}

@media (min-width: 1024px) {
  .page-contact .contact-layout {
    grid-template-columns: 288px minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-contact .contact-rail {
    position: sticky;
    top: calc(var(--header-h) + 20px);
  }
}

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

/* ---------- 联络卡片（纸面 + 折角） ---------- */
.page-contact .contact-card {
  position: relative;
  background: var(--paper-100);
  color: var(--paper-ink);
  border: 1px solid var(--line-hard);
  box-shadow: 4px 4px 0 rgba(11, 18, 32, 0.72), 9px 9px 0 rgba(11, 18, 32, 0.34);
  overflow: hidden;
}

.page-contact .contact-card__media {
  position: relative;
  height: 128px;
  background: var(--ink-800);
  overflow: hidden;
}

.page-contact .contact-card__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.4) saturate(0.62) contrast(1.06);
}

.page-contact .contact-card__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 18, 32, 0.06) 0%, rgba(11, 18, 32, 0.82) 100%);
}

.page-contact .contact-card__body {
  padding: 20px 20px 24px;
}

.page-contact .contact-card__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1.25;
  color: var(--paper-ink);
}

.page-contact .contact-card__hint {
  margin: 0 0 18px;
  font-size: 13px;
  line-height: 1.7;
  color: #5b6577;
}

.page-contact .contact-field + .contact-field {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px dashed rgba(20, 26, 38, 0.26);
}

.page-contact .contact-field__label {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #7a8496;
}

.page-contact .contact-field__value {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.01em;
  line-height: 1.5;
  color: #8a6410;
  word-break: break-all;
}

.page-contact .contact-field__value.mono {
  font-size: 17px;
  letter-spacing: 0.04em;
}

.page-contact .contact-card__addr {
  display: block;
  font-size: 13.5px;
  line-height: 1.7;
  color: #3d4657;
}

.page-contact .contact-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.page-contact .copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 11px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: #46506a;
  background: transparent;
  border: 1px solid rgba(20, 26, 38, 0.34);
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .copy-btn:hover {
  border-color: var(--celadon-700);
  color: var(--celadon-700);
  background: rgba(76, 169, 140, 0.14);
}

.page-contact .copy-btn:focus-visible {
  outline: 2px solid var(--celadon-700);
  outline-offset: 2px;
}

.page-contact .copy-btn[data-copied] {
  border-color: var(--celadon-700);
  color: var(--celadon-700);
  background: rgba(76, 169, 140, 0.18);
}

/* ---------- 首屏叙事 ---------- */
.page-contact .contact-head {
  padding-top: 4px;
}

.page-contact .eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold-400);
}

.page-contact .contact-head__title {
  margin: 0 0 20px;
  max-width: 17ch;
  font-family: var(--font-display);
  font-size: clamp(34px, 6.2vw, 60px);
  font-weight: 600;
  line-height: 1.04;
  letter-spacing: -0.01em;
  color: var(--paper-100);
}

.page-contact .contact-head__lede {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.9;
  color: #b6c0d2;
}

/* ---------- 章节标题行 ---------- */
.page-contact .contact-section {
  margin-top: 54px;
}

.page-contact .sec-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 12px;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .sec-head h2 {
  flex: 1 1 auto;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 3.4vw, 30px);
  font-weight: 600;
  line-height: 1.2;
  color: var(--paper-100);
}

.page-contact .sec-no {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold-400);
}

.page-contact .sec-lede {
  margin: 0 0 22px;
  max-width: 64ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: #96a2b6;
}

/* ---------- 三条渠道 ---------- */
.page-contact .channel-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-contact .channel-item {
  position: relative;
  padding: 20px 18px 22px;
  background: var(--ink-800);
  border: 1px solid var(--line-soft);
  border-top-width: 3px;
}

.page-contact .channel-item--mail {
  border-top-color: var(--gold-400);
}

.page-contact .channel-item--phone {
  border-top-color: var(--celadon-400);
}

.page-contact .channel-item--post {
  border-top-color: var(--slate-400);
}

.page-contact .channel-item__name {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--paper-100);
}

.page-contact .channel-item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: #a6b1c4;
}

/* ---------- 提交清单四格 ---------- */
.page-contact .prep-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-contact .prep-item {
  position: relative;
  padding: 22px 20px 20px;
  background: linear-gradient(180deg, rgba(27, 41, 64, 0.92) 0%, rgba(18, 28, 46, 0.92) 100%);
  border: 1px solid var(--line-soft);
  transition: border-color var(--dur) var(--ease);
}

.page-contact .prep-item:hover {
  border-color: var(--line-600);
}

.page-contact .prep-item__num {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--gold-400);
}

.page-contact .prep-item h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--paper-100);
}

.page-contact .prep-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: #9fabbf;
}

/* ---------- 配图 ---------- */
.page-contact .contact-figure {
  margin: 26px 0 0;
  padding: 0;
  background: var(--ink-800);
  border: 1px solid var(--line-soft);
  overflow: hidden;
}

.page-contact .contact-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: brightness(0.74) saturate(0.84) contrast(1.03);
}

.page-contact .contact-figure .media-frame__caption {
  margin: 0;
  padding: 12px 18px 14px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--slate-400);
  border-top: 1px solid var(--line-soft);
}

/* ---------- 响应节奏 ---------- */
.page-contact .response-panel {
  margin: 0;
  padding: 6px 22px;
  background: var(--ink-800);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--celadon-400);
}

.page-contact .response-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 18px 0;
}

.page-contact .response-row + .response-row {
  border-top: 1px dashed rgba(51, 80, 122, 0.6);
}

.page-contact .response-row__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold-400);
}

.page-contact .response-row__val {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: #b6c0d2;
}

/* ---------- 自助入口 ---------- */
.page-contact .self-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-contact .self-card {
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding: 22px 20px;
  background: var(--ink-800);
  border: 1px solid var(--line-soft);
  text-decoration: none;
  color: inherit;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .self-card:hover {
  transform: translateY(-2px);
  border-color: var(--gold-400);
  background: var(--ink-700);
}

.page-contact .self-card:focus-visible {
  outline: 2px solid var(--celadon-400);
  outline-offset: 2px;
}

.page-contact .self-card__tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--celadon-400);
}

.page-contact .self-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--paper-100);
}

.page-contact .self-card p {
  flex: 1 1 auto;
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: #9fabbf;
}

.page-contact .self-card__go {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold-400);
}

/* ---------- 地址与备案 ---------- */
.page-contact .address-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  background: var(--paper-100);
  color: var(--paper-ink);
  border: 1px solid var(--line-hard);
  box-shadow: 4px 4px 0 rgba(11, 18, 32, 0.7);
  overflow: hidden;
}

.page-contact .address-card__main,
.page-contact .address-card__aside {
  padding: 24px 22px;
}

.page-contact .address-card__aside {
  background: var(--paper-200);
  border-top: 1px dashed rgba(20, 26, 38, 0.28);
}

.page-contact .address-card__label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #7a8496;
}

.page-contact .address-card__value {
  margin: 0;
  font-size: 16px;
  line-height: 1.7;
  color: var(--paper-ink);
}

.page-contact .address-card__value.mono {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.03em;
  color: #8a6410;
}

.page-contact .address-card__sub {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: #5b6577;
}

.page-contact .contact-note {
  margin: 22px 0 0;
  max-width: 72ch;
  font-size: 13.5px;
  line-height: 1.9;
  color: var(--slate-400);
}

.page-contact .contact-note a {
  color: var(--gold-200);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  transition: color var(--dur) var(--ease);
}

.page-contact .contact-note a:hover {
  color: var(--gold-400);
}

.page-contact .contact-note a:focus-visible {
  outline: 2px solid var(--gold-400);
  outline-offset: 2px;
}

/* ---------- 底部水纹带 ---------- */
.page-contact .contact-waves-wrap {
  margin-top: 76px;
  padding: 0 20px;
}

.page-contact .contact-waves {
  display: block;
  width: 100%;
  max-width: var(--shell);
  height: 84px;
  margin: 0 auto;
}

/* ---------- 进入视口的一次性显现 ---------- */
.page-contact [data-reveal].is-revealed {
  animation: contact-lift 200ms var(--ease) both;
}

@keyframes contact-lift {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 中等屏 ---------- */
@media (min-width: 640px) {
  .page-contact .contact-shell {
    padding: 0 28px;
  }

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

  .page-contact .response-row {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 22px;
    align-items: baseline;
  }

  .page-contact .contact-figure .media-frame__caption {
    padding: 14px 22px 16px;
  }
}

@media (min-width: 900px) {
  .page-contact .channel-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .self-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-contact .contact-shell {
    padding: 0 40px;
  }

  .page-contact .contact-section {
    margin-top: 68px;
  }

  .page-contact .contact-waves-wrap {
    padding: 0 40px;
    margin-top: 96px;
  }
}

@media (min-width: 760px) and (max-width: 1023px) {
  .page-contact .address-card {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  }

  .page-contact .address-card__aside {
    border-top: 0;
    border-left: 1px dashed rgba(20, 26, 38, 0.28);
  }
}

@media (min-width: 1024px) {
  .page-contact .address-card {
    grid-template-columns: minmax(0, 1.65fr) minmax(0, 1fr);
  }

  .page-contact .address-card__aside {
    border-top: 0;
    border-left: 1px dashed rgba(20, 26, 38, 0.28);
  }
}

/* ---------- 降低动态效果 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact [data-reveal].is-revealed {
    animation: none;
  }

  .page-contact .self-card:hover {
    transform: none;
  }

  .page-contact .prep-item,
  .page-contact .self-card,
  .page-contact .copy-btn,
  .page-contact .breadcrumbs__link,
  .page-contact .contact-note a {
    transition: none;
  }
}