.page-contact {
  --ct-flow: clamp(20px, 3vw, 34px);
  --ct-rule: 1px solid var(--line);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-contact img {
  display: block;
  max-width: 100%;
  height: auto;
}

/* ---------- 面包屑 ---------- */
.page-contact .contact-crumbs {
  padding-top: clamp(18px, 3vw, 30px);
}

.page-contact .breadcrumbs {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--rock);
}

.page-contact .breadcrumbs li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.page-contact .breadcrumbs li + li::before {
  content: "/";
  color: var(--line);
}

.page-contact .breadcrumbs a {
  color: var(--slate);
  text-decoration: none;
  transition: color .2s var(--ease);
}

.page-contact .breadcrumbs a:hover {
  color: var(--cyan);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  padding-top: clamp(26px, 4vw, 52px);
  padding-bottom: clamp(30px, 5vw, 62px);
  align-items: start;
}

.page-contact .contact-hero__copy h1 {
  margin: 12px 0 18px;
  font-size: clamp(32px, 6.4vw, 62px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--warm);
}

.page-contact .contact-hero__copy h1 em {
  font-style: normal;
  color: var(--cyan);
}

.page-contact .contact-hero .lede {
  max-width: 46ch;
  font-size: clamp(15px, 2.1vw, 17px);
  line-height: 1.78;
  color: var(--text-body);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-contact .contact-hero__media {
  position: relative;
  margin: 0;
  border: var(--ct-rule);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-800);
}

.page-contact .contact-hero__media img {
  width: 100%;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  filter: saturate(.85) brightness(.76);
}

.page-contact .contact-hero__media .media-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 16px 18px 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--rock);
  background: linear-gradient(to top, rgba(11, 22, 38, .96), rgba(11, 22, 38, 0));
}

/* ---------- 渠道卡片 ---------- */
.page-contact .channel-grid {
  display: grid;
  gap: 16px;
  margin-top: clamp(24px, 4vw, 42px);
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(20px, 3vw, 30px);
  border: var(--ct-rule);
  border-radius: var(--radius);
  background: var(--ink-800);
  box-shadow: var(--shadow-panel);
  transition: border-color .22s var(--ease), transform .22s var(--ease);
}

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  border-color: var(--cyan);
  transform: translateY(-4px);
}

.page-contact .channel-card .tag {
  align-self: flex-start;
}

.page-contact .channel-card__title {
  margin: 0;
  font-size: clamp(17px, 2.4vw, 20px);
  line-height: 1.35;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--warm);
}

.page-contact .channel-card__body {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text-body);
}

.page-contact .channel-card__mail,
.page-contact .channel-card__phone {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 2.4vw, 18px);
  letter-spacing: .02em;
  overflow-wrap: anywhere;
}

.page-contact .channel-card__mail a,
.page-contact .channel-card__phone a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .22s var(--ease), color .22s var(--ease);
}

.page-contact .channel-card__phone a {
  color: var(--orange);
}

.page-contact .channel-card__mail a:hover,
.page-contact .channel-card__phone a:hover {
  border-bottom-color: currentColor;
}

.page-contact .channel-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: auto;
  padding-top: 6px;
}

/* 米白反白卡片 */
.page-contact .channel-card--mail {
  background: var(--cream);
  border-color: transparent;
}

.page-contact .channel-card--mail .channel-card__title {
  color: var(--ink-900);
}

.page-contact .channel-card--mail .channel-card__body,
.page-contact .channel-card--mail .channel-card__mail a {
  color: rgba(11, 22, 38, .82);
}

.page-contact .channel-card--mail .channel-card__mail a {
  border-bottom-color: rgba(11, 22, 38, .3);
}

.page-contact .channel-card--mail .channel-card__mail a:hover {
  color: var(--ink-900);
  border-bottom-color: var(--ink-900);
}

.page-contact .channel-card--mail .btn--primary {
  background: var(--ink-900);
  color: var(--warm);
  border-color: var(--ink-900);
}

.page-contact .channel-card--mail .btn--ghost {
  color: var(--ink-900);
  border-color: rgba(11, 22, 38, .3);
  background: transparent;
}

.page-contact .channel-card--doc .link-arrow {
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--slate);
  text-decoration: none;
  transition: color .2s var(--ease);
}

.page-contact .channel-card--doc .link-arrow:hover {
  color: var(--cyan);
}

/* ---------- 主题行建议 ---------- */
.page-contact .contact-subject__inner {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
  padding-top: clamp(28px, 4vw, 52px);
  border-top: var(--ct-rule);
}

.page-contact .contact-subject__aside .index-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--clay);
  margin: 0 0 10px;
}

.page-contact .contact-subject__body p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--text-body);
}

.page-contact .contact-subject__body p + p {
  margin-top: 18px;
}

.page-contact .subject-samples {
  list-style: none;
  margin: 22px 0;
  padding: 0;
  border-top: var(--ct-rule);
}

.page-contact .subject-samples li {
  padding: 14px 16px;
  border-bottom: var(--ct-rule);
  border-left: 2px solid var(--orange);
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--warm);
  overflow-wrap: anywhere;
  transition: background-color .2s var(--ease);
}

.page-contact .subject-samples li:hover {
  background: var(--ink-800);
}

.page-contact .subject-samples .mono {
  font-family: var(--font-mono);
  letter-spacing: .02em;
}

/* ---------- 流程 ---------- */
.page-contact .contact-flow__media {
  margin: 0 0 clamp(24px, 4vw, 38px);
  border: var(--ct-rule);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-800);
}

.page-contact .contact-flow__media img {
  width: 100%;
  max-height: 240px;
  object-fit: cover;
  opacity: .7;
}

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

.page-contact .flow-step {
  position: relative;
  padding: 20px 20px 20px 66px;
  border: var(--ct-rule);
  border-radius: var(--radius-sm);
  background: var(--ink-800);
}

.page-contact .flow-num {
  position: absolute;
  left: 20px;
  top: 20px;
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: .06em;
  color: var(--cyan);
}

.page-contact .flow-step h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 800;
  color: var(--warm);
}

.page-contact .flow-step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--text-body);
}

/* ---------- 热线 ---------- */
.page-contact .contact-hotline__panel {
  display: grid;
  gap: clamp(22px, 3vw, 36px);
  padding: clamp(24px, 4vw, 44px);
  border: var(--ct-rule);
  border-left: 2px solid var(--orange);
  border-radius: var(--radius);
  background: var(--ink-800);
  box-shadow: var(--shadow-panel);
}

.page-contact .contact-hotline__left .panel-title {
  margin: 8px 0 12px;
  font-family: var(--font-mono);
  font-size: clamp(24px, 4.4vw, 38px);
  letter-spacing: .02em;
  color: var(--orange);
}

.page-contact .contact-hotline__left p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-body);
}

.page-contact .contact-hotline__meta {
  margin: 0;
  display: grid;
  gap: 14px;
}

.page-contact .contact-hotline__meta > div {
  padding-top: 14px;
  border-top: var(--ct-rule);
}

.page-contact .contact-hotline__meta dt {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--slate);
  margin-bottom: 6px;
}

.page-contact .contact-hotline__meta dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--warm);
}

/* ---------- 常见方向 ---------- */
.page-contact .topic-list {
  list-style: none;
  margin: clamp(24px, 4vw, 42px) 0 0;
  padding: 1px;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: var(--ct-rule);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .topic-item {
  position: relative;
  padding: clamp(20px, 3vw, 28px);
  background: var(--ink-900);
  transition: background-color .22s var(--ease);
}

.page-contact .topic-item:hover {
  background: var(--ink-800);
}

.page-contact .topic-item h3 {
  margin: 0 0 8px;
  font-size: 16.5px;
  font-weight: 800;
  color: var(--warm);
}

.page-contact .topic-item p {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text-body);
}

.page-contact .topic-item .link-arrow {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--slate);
  text-decoration: none;
  transition: color .2s var(--ease);
}

.page-contact .topic-item .link-arrow:hover {
  color: var(--cyan);
}

/* ---------- 站点信息 ---------- */
.page-contact .info-list {
  margin: clamp(24px, 4vw, 40px) 0 0;
  border-top: var(--ct-rule);
}

.page-contact .info-row {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: var(--ct-rule);
}

.page-contact .info-row dt {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--slate);
}

.page-contact .info-row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--warm);
  overflow-wrap: anywhere;
}

.page-contact .info-row dd a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .22s var(--ease);
}

.page-contact .info-row dd a:hover {
  border-bottom-color: currentColor;
}

.page-contact .info-row dd .mono {
  font-family: var(--font-mono);
  letter-spacing: .02em;
}

/* ---------- 收尾 ---------- */
.page-contact .contact-close__panel {
  display: grid;
  gap: 16px;
  padding: clamp(24px, 4vw, 46px);
  border-radius: var(--radius);
  background: var(--cream);
  border: 1px solid transparent;
}

.page-contact .contact-close__panel .panel-title {
  margin: 0;
  color: var(--ink-900);
  font-size: clamp(22px, 3.6vw, 32px);
  letter-spacing: -0.02em;
}

.page-contact .contact-close__panel p {
  margin: 0;
  max-width: 54ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(11, 22, 38, .82);
}

.page-contact .contact-close__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 6px;
}

.page-contact .contact-close__panel .btn--primary {
  background: var(--ink-900);
  color: var(--warm);
  border-color: var(--ink-900);
}

.page-contact .contact-close__panel .btn--ghost {
  background: transparent;
  color: var(--ink-900);
  border-color: rgba(11, 22, 38, .3);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-contact .topic-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .info-row {
    grid-template-columns: minmax(120px, 190px) minmax(0, 1fr);
    gap: clamp(16px, 3vw, 44px);
    align-items: baseline;
  }

  .page-contact .info-row dt {
    text-align: right;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: clamp(32px, 5vw, 72px);
    align-items: center;
  }

  .page-contact .contact-subject__inner {
    grid-template-columns: minmax(0, .78fr) minmax(0, 1.22fr);
    gap: clamp(32px, 5vw, 72px);
    align-items: start;
  }

  .page-contact .contact-hotline__panel {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    gap: clamp(32px, 5vw, 72px);
    align-items: start;
  }
}

@media (min-width: 940px) {
  .page-contact .channel-grid {
    grid-template-columns: 1.28fr 1fr .84fr;
    align-items: start;
  }

  .page-contact .channel-card--mail {
    padding-block: clamp(28px, 3.4vw, 42px);
  }

  .page-contact .channel-card--phone {
    margin-top: 14px;
  }

  .page-contact .channel-card--doc {
    margin-top: 28px;
  }
}

@media (min-width: 1040px) {
  .page-contact .flow-track {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0;
  }

  .page-contact .flow-step {
    border: 0;
    border-top: var(--ct-rule);
    border-radius: 0;
    background: transparent;
    padding: 26px 20px 0 0;
  }

  .page-contact .flow-step:hover {
    background: transparent;
  }

  .page-contact .flow-step::before {
    content: "";
    position: absolute;
    top: -5px;
    left: 0;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--ink-900);
    border: 1px solid var(--cyan);
  }

  .page-contact .flow-num {
    position: static;
    display: block;
    margin-bottom: 10px;
  }

  .page-contact .flow-step h3 {
    font-size: 15.5px;
  }

  .page-contact .flow-step p {
    font-size: 13.5px;
  }
}

@media (min-width: 1100px) {
  .page-contact .topic-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .topic-item,
  .page-contact .subject-samples li,
  .page-contact .breadcrumbs a,
  .page-contact .channel-card__mail a,
  .page-contact .channel-card__phone a,
  .page-contact .info-row dd a,
  .page-contact .channel-card--doc .link-arrow,
  .page-contact .topic-item .link-arrow {
    transition: none;
  }

  .page-contact .channel-card:hover,
  .page-contact .channel-card:focus-within {
    transform: none;
  }
}