.page-contact {
  --c-line: rgba(242, 235, 221, 0.14);
  --c-line-soft: rgba(242, 235, 221, 0.08);
  --c-panel: #16293A;
  --c-text-soft: rgba(242, 235, 221, 0.76);
  background: var(--ink);
  color: var(--paper);
  overflow-x: clip;
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-contact .c-crumbs-wrap {
  padding-top: clamp(84px, 12vw, 124px);
}

.page-contact .crumbs {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--stone);
}

.page-contact .crumbs a {
  color: var(--stone);
  text-decoration: none;
  border-bottom: 1px dotted var(--teal);
}

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

.page-contact .crumbs__sep {
  margin: 0 8px;
  color: var(--teal);
}

/* ---------- 首屏 ---------- */
.page-contact .c-hero {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  padding-top: clamp(16px, 2.4vw, 30px);
  padding-bottom: clamp(32px, 5vw, 56px);
  border-bottom: 1px solid var(--c-line);
}

.page-contact .c-hero__coord {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--signal);
  text-transform: uppercase;
}

.page-contact .c-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 6.4vw, 62px);
  line-height: 0.98;
  letter-spacing: -0.02em;
}

.page-contact .c-hero__lead {
  margin: 18px 0 0;
  max-width: 52ch;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.78;
  color: var(--c-text-soft);
}

.page-contact .c-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .c-hero__facts li {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--paper);
  background: var(--c-panel);
  border: 1px solid var(--teal);
  padding: 6px 10px;
}

.page-contact .c-hero__figure {
  margin: 0;
}

.page-contact .media-frame {
  margin: 0;
  border: 1px solid var(--teal);
  background:
    repeating-linear-gradient(0deg, var(--c-line-soft) 0 1px, transparent 1px 24px),
    repeating-linear-gradient(90deg, var(--c-line-soft) 0 1px, transparent 1px 24px),
    var(--ink-deep);
}

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

.page-contact .media-frame__caption {
  display: block;
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--stone);
  border-top: 1px solid var(--c-line-soft);
}

/* ---------- 主体：坐标轴 + 内容列 ---------- */
.page-contact .c-body {
  display: grid;
  gap: clamp(24px, 3vw, 40px);
  padding-top: clamp(28px, 4vw, 48px);
}

.page-contact .c-rail {
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--signal);
  padding: 14px 16px 16px;
  align-self: start;
}

.page-contact .c-rail__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--stone);
}

.page-contact .c-rail .coord-rail {
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-contact .c-rail .coord-rail__item {
  flex: 0 0 auto;
}

.page-contact .c-rail .coord-rail__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  font-size: 13px;
  color: var(--c-text-soft);
  text-decoration: none;
  border: 1px solid var(--c-line);
  white-space: nowrap;
  transition: color 180ms var(--ease), border-color 180ms var(--ease), background-color 180ms var(--ease);
}

.page-contact .c-rail .coord-rail__code {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--signal);
}

.page-contact .c-rail .coord-rail__link:hover,
.page-contact .c-rail .coord-rail__link:focus-visible,
.page-contact .c-rail .coord-rail__link[data-active] {
  color: var(--ink);
  background: var(--signal);
  border-color: var(--signal);
}

.page-contact .c-rail .coord-rail__link:hover .coord-rail__code,
.page-contact .c-rail .coord-rail__link:focus-visible .coord-rail__code,
.page-contact .c-rail .coord-rail__link[data-active] .coord-rail__code {
  color: var(--ink);
}

.page-contact .c-col {
  min-width: 0;
}

/* ---------- 章节 ---------- */
.page-contact .c-section {
  padding-block: clamp(28px, 4vw, 48px);
  border-top: 1px solid var(--c-line);
}

.page-contact .c-section:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .c-section__head {
  max-width: 62ch;
  margin-bottom: clamp(18px, 2.6vw, 28px);
}

.page-contact .c-section__index {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  color: var(--clay);
}

.page-contact .c-section__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 3.4vw, 34px);
  line-height: 1.12;
  letter-spacing: -0.01em;
}

.page-contact .c-section__lead {
  margin: 12px 0 0;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--c-text-soft);
}

.page-contact .c-h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-contact .c-text {
  margin: 12px 0 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--c-text-soft);
}

.page-contact .c-text--small {
  font-size: 14px;
  line-height: 1.7;
  color: var(--stone);
}

.page-contact .checklist {
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.page-contact .checklist__item {
  position: relative;
  padding-left: 18px;
  margin-bottom: 9px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-text-soft);
}

.page-contact .checklist__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 7px;
  height: 7px;
  background: var(--celadon);
  transform: rotate(45deg);
}

/* ---------- 渠道卡 ---------- */
.page-contact .c-channels {
  display: grid;
  gap: 14px;
}

.page-contact .c-channel {
  position: relative;
  padding: 20px 18px 18px;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  min-width: 0;
}

.page-contact .c-channel::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 16px;
  height: 16px;
  background: var(--signal);
}

.page-contact .c-channel__key {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--stone);
}

.page-contact .c-channel__val {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 2.6vw, 22px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .c-channel__val--mono {
  font-family: var(--font-mono);
  font-size: clamp(14px, 2vw, 18px);
  letter-spacing: 0.01em;
}

.page-contact .c-channel__note {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--c-text-soft);
}

.page-contact .c-channel__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.page-contact .copy-btn {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  padding: 9px 14px;
  color: var(--paper);
  background: transparent;
  border: 1px solid var(--teal);
  cursor: pointer;
  transition: color 180ms var(--ease), border-color 180ms var(--ease), background-color 180ms var(--ease);
}

.page-contact .copy-btn:hover,
.page-contact .copy-btn:focus-visible {
  border-color: var(--signal);
  color: var(--signal);
}

.page-contact .copy-btn[data-copied] {
  color: var(--ink);
  background: var(--celadon);
  border-color: var(--celadon);
}

.page-contact .c-channel .btn {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  padding: 9px 14px;
  text-decoration: none;
}

/* ---------- 合作咨询 ---------- */
.page-contact .c-consult {
  display: grid;
  gap: 20px;
}

.page-contact .c-consult__main {
  min-width: 0;
}

.page-contact .c-consult__aside {
  padding: 20px 18px;
  border: 1px solid var(--teal);
  background:
    repeating-linear-gradient(90deg, var(--c-line-soft) 0 1px, transparent 1px 22px),
    var(--ink-deep);
}

.page-contact .c-aside__key {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--stone);
}

.page-contact .c-aside__big {
  margin: 4px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 4.6vw, 42px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--signal);
}

.page-contact .c-aside__key + .c-aside__big + .c-text {
  margin-bottom: 20px;
}

/* ---------- 反馈分类 ---------- */
.page-contact .c-flows__figure {
  margin-bottom: 20px;
}

.page-contact .c-flows {
  display: grid;
  gap: 10px;
}

.page-contact .c-flow {
  border: 1px solid var(--c-line);
  background: var(--c-panel);
}

.page-contact .c-flow[open] {
  border-color: var(--teal);
}

.page-contact .c-flow__summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
}

.page-contact .c-flow__summary::-webkit-details-marker {
  display: none;
}

.page-contact .c-flow__code {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--stone);
}

.page-contact .c-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  padding: 3px 8px;
  color: var(--ink);
  font-weight: 500;
}

.page-contact .c-tag--entry {
  background: var(--signal);
  color: var(--paper);
}

.page-contact .c-tag--catalog {
  background: var(--celadon);
}

.page-contact .c-tag--device {
  background: var(--amber);
}

.page-contact .c-tag--version {
  background: var(--mist);
}

.page-contact .c-flow__name {
  flex: 1 1 180px;
  font-size: 15px;
  color: var(--paper);
}

.page-contact .c-flow__body {
  padding: 0 16px 16px;
  border-top: 1px dashed var(--c-line);
}

.page-contact .c-flow__body .c-text {
  margin-top: 14px;
}

/* ---------- 服务时段 ---------- */
.page-contact .c-hours {
  border: 1px solid var(--c-line);
  padding: 20px 18px;
  background: var(--ink-deep);
}

.page-contact .c-hours__scale {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.page-contact .c-hours__mark {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--paper);
}

.page-contact .c-hours__bar {
  flex: 1;
  height: 6px;
  background: linear-gradient(90deg, var(--teal) 0%, var(--celadon) 45%, var(--amber) 80%, var(--signal) 100%);
}

.page-contact .c-hours__grid {
  display: grid;
  gap: 14px;
}

.page-contact .c-hours__item {
  border-left: 2px solid var(--teal);
  padding-left: 12px;
}

.page-contact .c-hours__num {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 3vw, 26px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .c-hours__label {
  margin: 4px 0 0;
  font-size: 13.5px;
  color: var(--stone);
}

/* ---------- 资料寄送 ---------- */
.page-contact .c-post {
  display: grid;
  gap: 18px;
}

.page-contact .c-post__card {
  padding: 22px 18px;
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--paper);
}

.page-contact .c-post__key {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--clay);
}

.page-contact .c-post__addr {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 2.8vw, 24px);
  line-height: 1.32;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .c-post__card .c-text--small {
  color: rgba(11, 27, 43, 0.78);
}

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

.page-contact .c-post__list li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 10px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--c-text-soft);
}

.page-contact .c-post__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 10px;
  height: 1px;
  background: var(--clay);
}

/* ---------- 顺路看看 ---------- */
.page-contact .c-next__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-contact .c-next__link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 14px;
  text-decoration: none;
  color: var(--paper);
  border: 1px solid var(--c-line);
  transition: border-color 200ms var(--ease), background-color 200ms var(--ease), transform 200ms var(--ease);
}

.page-contact .c-next__link:hover,
.page-contact .c-next__link:focus-visible {
  border-color: var(--signal);
  background: var(--c-panel);
  transform: translateX(3px);
}

.page-contact .c-next__code {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--signal);
  flex: 0 0 auto;
}

.page-contact .c-next__label {
  flex: 1 1 auto;
  font-size: 14.5px;
}

.page-contact .c-next__arrow {
  color: var(--stone);
  font-size: 14px;
}

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

  .page-contact .c-channel--wide {
    grid-column: 1 / -1;
  }

  .page-contact .c-hours__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-contact .c-post {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: start;
  }

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

@media (min-width: 900px) {
  .page-contact .c-hero {
    grid-template-columns: minmax(0, 1.04fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .c-body {
    grid-template-columns: minmax(150px, 0.28fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .c-rail {
    position: sticky;
    top: 96px;
  }

  .page-contact .c-rail .coord-rail {
    flex-direction: column;
    overflow-x: visible;
  }

  .page-contact .c-rail .coord-rail__link {
    white-space: normal;
    width: 100%;
  }

  .page-contact .c-consult {
    grid-template-columns: minmax(0, 1fr) minmax(200px, 0.52fr);
    align-items: start;
    gap: 26px;
  }
}

@media (min-width: 1100px) {
  .page-contact .c-hero__figure {
    margin-top: 6px;
  }

  .page-contact .c-body {
    grid-template-columns: minmax(170px, 0.26fr) minmax(0, 1fr);
    gap: 48px;
  }

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

  .page-contact .c-channel--wide {
    grid-column: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .c-next__link,
  .page-contact .copy-btn,
  .page-contact .c-rail .coord-rail__link {
    transition: none;
  }

  .page-contact .c-next__link:hover,
  .page-contact .c-next__link:focus-visible {
    transform: none;
  }
}
<<<END>>>