.page-contact {
  --ct-pad: 22px;
  --ct-line: var(--line-hair);
  --ct-panel: var(--bg-panel);
  background: var(--bg-deep);
  color: var(--text);
  font-family: var(--font-cn);
  overflow-x: hidden;
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 20px 0 2px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--text-dim);
  text-transform: uppercase;
}

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

.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.page-contact .breadcrumb__sep {
  color: var(--line);
}

/* ---------- 首屏框景 ---------- */
.page-contact .ct-hero {
  position: relative;
  background-image: var(--grad-frame);
  border-bottom: 1px solid var(--ct-line);
  overflow: hidden;
}

.page-contact .ct-hero::before {
  content: "";
  position: absolute;
  inset: 16px 16px 0;
  border: 1px solid var(--line-soft);
  pointer-events: none;
}

.page-contact .ct-hero::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 0;
  height: 10px;
  background-image: repeating-linear-gradient(
    to right,
    var(--line) 0,
    var(--line) 1px,
    transparent 1px,
    transparent 20px
  );
  opacity: 0.5;
  pointer-events: none;
}

.page-contact .ct-hero__inner {
  position: relative;
  z-index: 1;
  padding: 54px 0 0;
}

.page-contact .ct-kicker {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--accent);
  text-transform: uppercase;
}

.page-contact .ct-hero h1 {
  margin: 16px 0 0;
  max-width: 20ch;
  font-size: clamp(30px, 7.2vw, 68px);
  font-weight: 300;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-contact .ct-lede {
  margin: 22px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text-dim);
}

.page-contact .ct-jump {
  display: flex;
  gap: 10px;
  margin: 32px 0 0;
  padding: 0 0 30px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-contact .ct-jump li {
  flex: 0 0 auto;
}

.page-contact .ct-jump a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid var(--line-soft);
  background: rgba(22, 33, 46, 0.7);
  color: var(--text-dim);
  font-size: 13px;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease),
    background-color var(--dur) var(--ease);
}

.page-contact .ct-jump a .mono {
  font-size: 11px;
  color: var(--accent);
}

.page-contact .ct-jump a:hover,
.page-contact .ct-jump a:focus-visible {
  border-color: var(--accent);
  background: var(--bg-panel);
  color: var(--text);
}

/* ---------- 通用章节 ---------- */
.page-contact .ct-section {
  padding: 54px 0 0;
}

.page-contact .section-head {
  margin-bottom: 26px;
}

.page-contact .section-index {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--accent);
  text-transform: uppercase;
}

.page-contact .section-title {
  margin: 0;
  max-width: 26ch;
  font-size: clamp(23px, 4.2vw, 40px);
  font-weight: 300;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--text);
}

/* ---------- 图片 ---------- */
.page-contact .media-frame {
  margin: 0;
  border: 1px solid var(--line-soft);
  background: var(--bg-panel);
  overflow: hidden;
}

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

.page-contact .ct-frame {
  margin-bottom: 34px;
}

.page-contact .media-caption {
  margin: 0;
  padding: 12px 14px;
  border-top: 1px solid var(--ct-line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--text-dim);
}

/* ---------- 四象限 ---------- */
.page-contact .ct-quad {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--ct-line);
  border: 1px solid var(--ct-line);
}

.page-contact .ct-quad__cell {
  background: var(--ct-panel);
  padding: 24px 20px 28px;
  transition: background-color var(--dur) var(--ease);
}

.page-contact .ct-quad__cell:hover {
  background: var(--bg-row);
}

.page-contact .ct-quad__key {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--accent);
  text-transform: uppercase;
}

.page-contact .ct-quad__cell:nth-child(2) .ct-quad__key,
.page-contact .ct-quad__cell:nth-child(4) .ct-quad__key {
  color: var(--accent-alt);
}

.page-contact .ct-quad__title {
  margin: 12px 0 8px;
  font-size: 19px;
  font-weight: 400;
  line-height: 1.4;
  color: var(--text);
}

.page-contact .ct-quad__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-contact .ct-quad__meta {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 14px;
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--ct-line);
  font-size: 13.5px;
  line-height: 1.65;
}

.page-contact .ct-quad__meta dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  padding-top: 3px;
}

.page-contact .ct-quad__meta dd {
  margin: 0;
  color: var(--text);
}

/* ---------- 数据横条 ---------- */
.page-contact .ct-bar-wrap {
  margin-top: 54px;
  border-top: 1px solid var(--ct-line);
  border-bottom: 1px solid var(--ct-line);
  background-image: var(--grad-bar);
}

.page-contact .ct-bar {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
}

.page-contact .data-bar__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 22px 18px;
  border-right: 1px solid var(--ct-line);
  border-bottom: 1px solid var(--ct-line);
}

.page-contact .data-bar-num {
  font-size: clamp(26px, 5vw, 42px);
  font-weight: 500;
  line-height: 1;
  color: var(--accent);
}

.page-contact .data-bar-num--alt {
  color: var(--accent-alt);
}

.page-contact .data-bar-label {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}

/* ---------- 推进流程 ---------- */
.page-contact .ct-path {
  display: grid;
  grid-template-columns: 1fr;
  margin: 0;
  padding: 0 0 0 18px;
  list-style: none;
  border-left: 1px solid var(--ct-line);
}

.page-contact .ct-path__node {
  position: relative;
  padding: 0 0 26px 18px;
}

.page-contact .ct-path__node::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 6px;
  width: 7px;
  height: 7px;
  background: var(--accent);
}

.page-contact .ct-path__node:last-child {
  padding-bottom: 0;
}

.page-contact .skill-node__step {
  display: block;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--text-dim);
}

.page-contact .skill-node__title {
  margin: 8px 0 6px;
  font-size: 17px;
  font-weight: 400;
  color: var(--text);
}

.page-contact .ct-path__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}

/* ---------- 来信内容 ---------- */
.page-contact .ct-brief {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-contact .ct-brief__note {
  margin: 18px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-dim);
}

.page-contact .ct-brief__link {
  margin: 22px 0 0;
}

.page-contact .ct-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-list li {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 14px;
  padding: 15px 0;
  border-top: 1px solid var(--ct-line);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text);
}

.page-contact .ct-list li:last-child {
  border-bottom: 1px solid var(--ct-line);
}

.page-contact .ct-list__num {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--accent);
  padding-top: 4px;
}

/* ---------- 联系渠道 ---------- */
.page-contact .ct-reach__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  padding-top: 4px;
}

.page-contact .ct-channel {
  padding: 16px 0;
  border-top: 1px solid var(--ct-line);
}

.page-contact .ct-channel--plain {
  border-bottom: 1px solid var(--ct-line);
}

.page-contact .ct-channel__label {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--text-dim);
  text-transform: uppercase;
}

.page-contact .ct-channel__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(20px, 5.6vw, 32px);
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--text);
  word-break: break-all;
  -webkit-user-select: all;
  user-select: all;
  transition: color var(--dur) var(--ease);
}

.page-contact .ct-channel__value:hover {
  color: var(--accent);
}

.page-contact .ct-channel__value--accent {
  color: var(--accent);
}

.page-contact .ct-channel__value--accent:hover {
  color: var(--text);
}

.page-contact .ct-channel__value--small {
  font-size: clamp(16px, 4vw, 21px);
}

.page-contact .ct-reach__note {
  margin: 20px 0 0;
  max-width: 56ch;
  font-size: 14px;
  line-height: 1.85;
  color: var(--text-dim);
}

.page-contact .ct-reach__figure {
  align-self: start;
}

/* ---------- 备案信息 ---------- */
.page-contact .ct-filing {
  margin-top: 60px;
  padding: 34px 0 56px;
  border-top: 1px solid var(--line-soft);
  background: var(--bg-panel);
}

.page-contact .ct-filing__label {
  margin: 0 0 20px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--accent);
  text-transform: uppercase;
}

.page-contact .ct-filing__list {
  margin: 0;
  padding: 0;
}

.page-contact .ct-filing__row {
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--ct-line);
}

.page-contact .ct-filing__row dt {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  padding-top: 3px;
}

.page-contact .ct-filing__row dd {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--text);
}

.page-contact .ct-filing__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 24px 0 0;
}

.page-contact .ct-filing__links a {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  text-decoration: none;
  border-bottom: 1px solid var(--line-soft);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .ct-filing__links a:hover,
.page-contact .ct-filing__links a:focus-visible {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ---------- 焦点可见性 ---------- */
.page-contact a:focus-visible,
.page-contact .ct-channel__value:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 720px) {
  .page-contact .ct-hero__inner {
    padding: 68px 0 0;
  }

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

  .page-contact .ct-quad {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-contact .ct-quad__cell {
    padding: 30px 28px 34px;
  }

  .page-contact .ct-bar {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-contact .data-bar__item {
    border-bottom: 0;
    padding: 26px 20px;
  }

  .page-contact .data-bar__item:last-child {
    border-right: 0;
  }

  .page-contact .ct-brief {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.35fr);
    gap: 44px;
    align-items: start;
  }

  .page-contact .ct-reach__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }

  .page-contact .ct-bar-wrap {
    margin-top: 68px;
  }
}

/* ---------- 桌面：横向步骤条 ---------- */
@media (min-width: 960px) {
  .page-contact .ct-path {
    grid-template-columns: repeat(5, 1fr);
    padding: 0;
    border-left: 0;
    border-top: 1px solid var(--ct-line);
  }

  .page-contact .ct-path__node {
    padding: 30px 22px 30px 0;
    border-right: 1px solid var(--ct-line);
  }

  .page-contact .ct-path__node:last-child {
    border-right: 0;
    padding-right: 0;
  }

  .page-contact .ct-path__node::before {
    left: 0;
    top: -4px;
  }

  .page-contact .ct-hero__inner {
    padding-top: 82px;
  }
}

/* ---------- 减弱动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition-duration: 1ms !important;
    animation-duration: 1ms !important;
  }
}