.page-contact {
  background: var(--paper-50);
  color: var(--ink-950);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  padding-bottom: 8px;
}

.page-contact .page {
  display: block;
}

.page-contact .page__body {
  min-width: 0;
  padding: 0 18px 72px;
}

.page-contact .ct-flow {
  max-width: 1120px;
  margin: 0 auto;
}

/* ---------- 左侧纵向刻度轨道 ---------- */
.page-contact .ct-spine {
  display: none;
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  padding: 20px 0 4px;
}

.page-contact .breadcrumb__list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-contact .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--slate-700);
}

.page-contact .breadcrumb__link {
  color: var(--slate-700);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s var(--ease);
}

.page-contact .breadcrumb__link:hover {
  border-bottom-color: var(--brass-500);
}

/* ---------- 首屏框景 ---------- */
.page-contact .ct-hero {
  display: grid;
  gap: 16px;
  margin: 18px 0 52px;
}

.page-contact .ct-hero__frame {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--ink-950);
  color: var(--paper-50);
  border-top: 3px solid var(--brass-500);
  border-radius: var(--r-lg);
  padding: 30px 22px 26px;
  animation: ctRise 0.7s var(--ease) both;
}

.page-contact .ct-hero__frame::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(to right, rgba(215, 222, 232, 0.18) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(215, 222, 232, 0.18) 1px, transparent 1px);
  background-size: 54px 54px;
  -webkit-mask-image: linear-gradient(155deg, #000 0%, transparent 68%);
  mask-image: linear-gradient(155deg, #000 0%, transparent 68%);
  opacity: 0.55;
  pointer-events: none;
}

.page-contact .ct-hero__index {
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 62px;
  line-height: 0.84;
  letter-spacing: -0.05em;
  color: var(--brass-500);
}

.page-contact .ct-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 28px;
  line-height: 1.22;
  letter-spacing: -0.02em;
  color: var(--paper-50);
}

.page-contact .ct-hero__lede {
  margin: 14px 0 0;
  max-width: 42ch;
  font-size: 15px;
  line-height: 1.72;
  color: var(--mist-200);
}

.page-contact .ct-hero__channels {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .ct-hero__channel {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 12px;
  padding: 10px 16px;
  border: 1px solid var(--line-dark);
  border-radius: var(--r-pill);
  background: rgba(16, 31, 54, 0.78);
}

.page-contact .ct-hero__chkey {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--brass-300);
}

.page-contact .ct-hero__chval {
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: var(--paper-50);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .ct-hero__media {
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--mist-200);
  min-height: 180px;
}

.page-contact .ct-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

/* ---------- 区块通用 ---------- */
.page-contact .ct-block {
  margin: 0 0 54px;
}

.page-contact .ct-block--last {
  margin-bottom: 0;
}

.page-contact .ct-block__head {
  display: grid;
  gap: 6px;
  margin: 0 0 22px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.page-contact .ct-block__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--brass-500);
}

.page-contact .ct-block__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 22px;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.page-contact .ct-block__lede {
  margin: 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--slate-500);
}

/* ---------- 01 渠道图例 ---------- */
.page-contact .ct-channels {
  display: grid;
  gap: 18px;
}

.page-contact .ct-legend {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .ct-legend__item {
  display: grid;
  grid-template-columns: 10px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 18px;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-contact .ct-legend__item:hover {
  border-color: var(--brass-500);
  transform: translateY(-2px);
}

.page-contact .ct-legend__swatch {
  width: 10px;
  height: 10px;
  margin-top: 5px;
  border-radius: 3px;
  background: var(--brass-500);
}

.page-contact .ct-legend__swatch--ink {
  background: var(--ink-900);
}

.page-contact .ct-legend__swatch--signal {
  background: var(--signal-500);
}

.page-contact .ct-legend__key {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.page-contact .ct-legend__val {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--ink-950);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .ct-legend__note {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: 1.68;
  color: var(--slate-500);
}

.page-contact .ct-figure {
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--mist-200);
}

.page-contact .ct-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .ct-figure figcaption {
  padding: 10px 16px;
  background: var(--ink-900);
  color: var(--mist-200);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
}

/* ---------- 02 邮件步骤 ---------- */
.page-contact .ct-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .ct-step {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  padding: 18px 0;
  border-bottom: 1px dashed var(--line);
}

.page-contact .ct-step:first-child {
  border-top: 1px dashed var(--line);
}

.page-contact .ct-step__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--brass-500);
  padding-top: 3px;
}

.page-contact .ct-step__title {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--ink-950);
}

.page-contact .ct-step__text {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--slate-500);
}

/* ---------- 03 电话回拨 ---------- */
.page-contact .ct-callback {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--ink-900);
  color: var(--paper-50);
  border-radius: var(--r-lg);
  padding: 26px 22px;
  border-left: 3px solid var(--brass-500);
}

.page-contact .ct-callback::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(to right, rgba(215, 222, 232, 0.14) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(215, 222, 232, 0.14) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: radial-gradient(circle at 88% 12%, #000 0%, transparent 70%);
  mask-image: radial-gradient(circle at 88% 12%, #000 0%, transparent 70%);
  opacity: 0.7;
  pointer-events: none;
}

.page-contact .ct-callback__kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.24em;
  color: var(--brass-300);
}

.page-contact .ct-callback__lead {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.5;
  color: var(--paper-50);
}

.page-contact .ct-callback__list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .ct-callback__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist-200);
}

.page-contact .ct-callback__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 2px;
  background: var(--signal-500);
}

/* ---------- 04 场景筛选 ---------- */
.page-contact .ct-filter__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 20px;
}

.page-contact .ct-chip {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  padding: 8px 14px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line);
  background: transparent;
  color: var(--slate-700);
  cursor: pointer;
  transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-contact .ct-chip:hover {
  border-color: var(--brass-500);
  color: var(--ink-950);
}

.page-contact .ct-chip[aria-pressed="true"] {
  background: var(--ink-950);
  border-color: var(--ink-950);
  color: var(--paper-50);
}

.page-contact .ct-filter__count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

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

.page-contact .ct-scene[hidden] {
  display: none;
}

.page-contact .ct-scene {
  display: grid;
  gap: 8px;
  align-content: start;
  padding: 20px 18px 18px;
  background: #ffffff;
  border: 1px solid var(--line);
  border-left: 3px solid var(--brass-500);
  border-radius: var(--r-md);
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease);
}

.page-contact .ct-scene:hover {
  transform: translateY(-2px);
  border-color: var(--slate-700);
}

.page-contact .ct-scene__head {
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-contact .ct-scene__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--brass-500);
}

.page-contact .ct-scene__tag {
  font-size: 11px;
  letter-spacing: 0.06em;
  padding: 3px 10px;
  border-radius: var(--r-pill);
  background: var(--mist-200);
  color: var(--slate-700);
}

.page-contact .ct-scene__tag--signal {
  background: var(--signal-500);
  color: var(--paper-50);
}

.page-contact .ct-scene__title {
  margin: 2px 0 0;
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--ink-950);
}

.page-contact .ct-scene__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--slate-500);
}

.page-contact .ct-scene__link {
  margin-top: 4px;
  width: max-content;
  max-width: 100%;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-900);
  text-decoration: none;
  border-bottom: 2px solid var(--brass-500);
  padding-bottom: 2px;
  transition: color 0.25s var(--ease);
}

.page-contact .ct-scene__link:hover {
  color: var(--brass-500);
}

/* ---------- 05 地址档案条 ---------- */
.page-contact .ct-address {
  display: grid;
  gap: 10px;
}

.page-contact .data-list__row {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: #ffffff;
  overflow: hidden;
}

.page-contact .data-list__row summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 16px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
}

.page-contact .data-list__row summary::-webkit-details-marker {
  display: none;
}

.page-contact .data-list__key {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  color: var(--muted);
  min-width: 84px;
}

.page-contact .data-list__val {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink-950);
}

.page-contact .data-list__body {
  padding: 0 18px 16px;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--slate-500);
}

.page-contact .data-list__body p {
  margin: 0;
}

/* ---------- 06 备案信息 ---------- */
.page-contact .ct-ledger {
  margin: 0;
  border-top: 1px solid var(--line);
}

.page-contact .ct-ledger__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 18px;
  padding: 13px 2px;
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-ledger__row dt {
  min-width: 96px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-contact .ct-ledger__row dd {
  margin: 0;
  font-size: 14.5px;
  color: var(--ink-950);
  overflow-wrap: anywhere;
}

.page-contact .ct-ledger__mono {
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

.page-contact .ct-footnote {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate-500);
}

.page-contact .ct-footnote a {
  color: var(--ink-900);
  text-decoration: none;
  border-bottom: 1px solid var(--brass-500);
  margin: 0 2px;
}

.page-contact .ct-footnote a:hover {
  color: var(--brass-500);
}

@keyframes ctRise {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 中屏 ---------- */
@media (min-width: 700px) {
  .page-contact .ct-hero__title {
    font-size: 34px;
  }

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

  .page-contact .ct-block__title {
    font-size: 25px;
  }

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

  .page-contact .ct-scene:nth-child(even) {
    margin-top: 24px;
  }

  .page-contact .ct-callback {
    padding: 32px 30px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 960px) {
  .page-contact .page {
    display: grid;
    grid-template-columns: var(--rail-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .page__body {
    padding: 0 36px 96px;
  }

  .page-contact .ct-spine {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
    align-self: start;
    position: sticky;
    top: 16px;
    padding: 34px 0 40px;
    border-right: 1px solid var(--line);
  }

  .page-contact .ct-spine__num {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 26px;
    letter-spacing: -0.03em;
    line-height: 1;
    color: var(--brass-500);
  }

  .page-contact .ct-spine__label {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.3em;
    color: var(--muted);
  }

  .page-contact .ct-spine__rule {
    flex: 1;
    width: 1px;
    min-height: 110px;
    background: linear-gradient(var(--line), transparent);
  }

  .page-contact .ct-spine__coords {
    font-family: var(--font-mono);
    font-size: 9.5px;
    line-height: 1.7;
    letter-spacing: 0.14em;
    text-align: center;
    color: var(--muted);
  }

  .page-contact .ct-hero {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    gap: 20px;
    margin: 22px 0 64px;
  }

  .page-contact .ct-hero__frame {
    padding: 42px 40px 38px;
  }

  .page-contact .ct-hero__index {
    font-size: 92px;
  }

  .page-contact .ct-hero__title {
    font-size: 42px;
  }

  .page-contact .ct-hero__media {
    min-height: 100%;
  }

  .page-contact .ct-block {
    margin-bottom: 72px;
  }

  .page-contact .ct-block__head {
    grid-template-columns: 60px minmax(0, 1fr);
    column-gap: 18px;
    row-gap: 4px;
  }

  .page-contact .ct-block__num {
    grid-row: 1 / span 2;
    padding-top: 8px;
  }

  .page-contact .ct-block__lede {
    grid-column: 2;
  }

  .page-contact .ct-block__title {
    font-size: 28px;
  }

  .page-contact .ct-channels {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.6fr);
    align-items: start;
    gap: 24px;
  }

  .page-contact .ct-steps {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 40px;
  }

  .page-contact .ct-step:nth-child(2) {
    border-top: 1px dashed var(--line);
  }

  .page-contact .ct-callback {
    padding: 40px 44px;
  }

  .page-contact .ct-callback__lead {
    font-size: 22px;
    max-width: 34ch;
  }

  .page-contact .ct-callback__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 36px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-hero__frame {
    animation: none;
  }

  .page-contact .ct-legend__item,
  .page-contact .ct-scene,
  .page-contact .ct-chip,
  .page-contact .breadcrumb__link {
    transition: none;
  }

  .page-contact .ct-legend__item:hover,
  .page-contact .ct-scene:hover {
    transform: none;
  }
}
<<<END>>>