.page-contact {
  --pc-panel: #0A1730;
  --pc-panel-2: #12294A;
  display: block;
  box-sizing: border-box;
  width: 100%;
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: var(--gutter);
  color: var(--paper);
  font-family: var(--font-body);
}

.page-contact *,
.page-contact *::before,
.page-contact *::after {
  box-sizing: border-box;
}

.page-contact .breadcrumb {
  margin: 0 0 6px;
}

/* ---------- 首屏声明 ---------- */
.page-contact .contact-lead {
  position: relative;
  padding: 24px 0 30px;
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-lead__coord {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .contact-lead__title {
  margin: 14px 0 16px;
  font-family: var(--font-title);
  font-size: clamp(38px, 8vw, 68px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-contact .contact-lead__text {
  max-width: 66ch;
  margin: 0;
  font-size: 16.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .contact-lead__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 26px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  font-size: 14px;
  color: var(--muted);
}

.page-contact .contact-lead__facts .mono {
  margin-right: 6px;
  font-weight: 700;
  color: var(--orange);
}

/* ---------- 通用小标题 ---------- */
.page-contact .contact-h2 {
  margin: 0 0 10px;
  font-family: var(--font-title);
  font-size: clamp(22px, 3.4vw, 30px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-contact .contact-sub {
  max-width: 62ch;
  margin: 0 0 20px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 两栏骨架 ---------- */
.page-contact .contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 44px;
  padding: 36px 0 8px;
}

@media (min-width: 960px) {
  .page-contact .contact-grid {
    grid-template-columns: minmax(0, 340px) minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }
}

/* ---------- 渠道卡片 ---------- */
.page-contact .channels {
  min-width: 0;
}

.page-contact .chan-card {
  position: relative;
  margin-bottom: 14px;
  padding: 18px 20px 20px 22px;
  background: linear-gradient(160deg, var(--pc-panel-2), var(--pc-panel));
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
  transition: border-color .25s var(--ease);
}

.page-contact .chan-card::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 3px;
  background: var(--cyan);
}

.page-contact .chan-card--phone::before {
  background: var(--orange);
}

.page-contact .chan-card--addr::before {
  background: var(--purple);
}

.page-contact .chan-card:hover {
  border-color: var(--cyan);
}

.page-contact .chan-card__coord {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--muted);
}

.page-contact .chan-card__title {
  margin: 6px 0 8px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--paper);
}

.page-contact .chan-card__desc {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .chan-card__val {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .chan-note {
  margin-top: 20px;
  padding: 18px 20px 20px;
  border: 1px dashed var(--line);
  background: rgba(18, 41, 74, .35);
}

.page-contact .chan-note__coord {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--amber);
}

.page-contact .chan-note p {
  margin: 0 0 14px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 五步流程轨道 ---------- */
.page-contact .flow-col {
  min-width: 0;
}

.page-contact .flow-figure {
  margin: 0 0 30px;
}

.page-contact .flow-figure .figure__frame {
  overflow: hidden;
  border: 1px solid var(--line);
}

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

.page-contact .flow {
  position: relative;
  margin: 0;
  padding: 0 0 0 36px;
  list-style: none;
}

.page-contact .flow::before {
  content: "";
  position: absolute;
  top: 10px;
  bottom: 16px;
  left: 11px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan), var(--line) 55%, transparent);
}

.page-contact .flow__step {
  position: relative;
  padding-bottom: 26px;
}

.page-contact .flow__step:last-child {
  padding-bottom: 6px;
}

.page-contact .flow__num {
  position: absolute;
  top: 0;
  left: -36px;
  display: grid;
  place-items: center;
  width: 23px;
  height: 23px;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  color: var(--abyss);
  background: var(--cyan);
  border-radius: 50%;
  box-shadow: 0 0 0 5px var(--abyss), 0 0 20px -2px rgba(57, 230, 216, .65);
}

.page-contact .flow__title {
  margin: 0 0 7px;
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper);
}

.page-contact .flow__desc {
  max-width: 62ch;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .flow__tip {
  display: block;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .05em;
  color: var(--amber);
}

@media (min-width: 960px) {
  .page-contact .flow__tip {
    opacity: 0;
    visibility: hidden;
    transform: translateY(-4px);
    transition: opacity .25s var(--ease), transform .25s var(--ease), visibility .25s linear;
  }

  .page-contact .flow__step:hover .flow__tip,
  .page-contact .flow__step:focus-within .flow__tip {
    opacity: 1;
    visibility: visible;
    transform: none;
  }
}

.page-contact .flow__foot {
  margin: 24px 0 0;
  padding: 14px 16px;
  border-left: 3px solid var(--purple);
  background: rgba(169, 107, 255, .08);
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 响应时段 ---------- */
.page-contact .signal-rule {
  margin: 44px 0 0;
}

.page-contact .tone-band {
  position: relative;
  margin-top: 26px;
  padding: 28px 22px 30px;
  background: var(--deep);
  border: 1px solid var(--line);
}

.page-contact .tone-band::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--orange), rgba(255, 122, 51, 0) 72%);
}

.page-contact .tone-band__coord {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--orange);
}

.page-contact .tone-band .contact-sub {
  margin-bottom: 22px;
}

.page-contact .tone-band__cols {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

@media (min-width: 760px) {
  .page-contact .tone-band {
    padding: 32px 32px 34px;
  }

  .page-contact .tone-band__cols {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 28px;
  }
}

.page-contact .tone-band__item {
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .tone-band__item strong {
  display: block;
  margin-bottom: 6px;
  font-size: 15px;
  color: var(--paper);
}

/* ---------- 反馈清单 ---------- */
.page-contact .checklist-wrap {
  margin-top: 34px;
  padding: 26px 22px 28px;
  background: var(--pc-panel-2);
  border-left: 3px solid var(--amber);
}

.page-contact .checklist-wrap__coord {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--amber);
}

.page-contact .checklist {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 680px) {
  .page-contact .checklist-wrap {
    padding: 30px 32px 32px;
  }

  .page-contact .checklist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px 30px;
  }
}

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

.page-contact .checklist__item label {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--paper);
  cursor: pointer;
}

.page-contact .checklist__item input {
  flex: 0 0 auto;
  width: 17px;
  height: 17px;
  margin: 3px 0 0;
  appearance: none;
  display: grid;
  place-items: center;
  background: var(--abyss);
  border: 1px solid var(--line);
  cursor: pointer;
  transition: border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-contact .checklist__item input:checked {
  border-color: var(--cyan);
  background: rgba(57, 230, 216, .14);
}

.page-contact .checklist__item input:checked::after {
  content: "";
  width: 9px;
  height: 5px;
  border-left: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(-45deg) translate(1px, -1px);
}

/* ---------- 站点归属 ---------- */
.page-contact .origin {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  margin-top: 26px;
  background: var(--abyss);
  border: 1px solid var(--line);
}

@media (min-width: 900px) {
  .page-contact .origin {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  }
}

.page-contact .origin__media {
  position: relative;
  min-height: 220px;
  overflow: hidden;
}

.page-contact .origin__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(4, 7, 15, .1), rgba(4, 7, 15, .72));
  pointer-events: none;
}

.page-contact .origin__media img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 220px;
  object-fit: cover;
}

.page-contact .origin__body {
  min-width: 0;
  padding: 28px 22px 30px;
}

@media (min-width: 900px) {
  .page-contact .origin__body {
    padding: 34px 36px 36px;
  }
}

.page-contact .origin__coord {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--cyan);
}

.page-contact .origin .ledger {
  margin-top: 18px;
}

.page-contact .origin .ledger__val {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  overflow-wrap: anywhere;
}

/* ---------- 延伸入口 ---------- */
.page-contact .relay {
  margin-top: 46px;
  padding-bottom: 16px;
}

.page-contact .relay .card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}

.page-contact .relay .card__meta {
  margin-top: auto;
}

/* ---------- 窄屏兜底 ---------- */
@media (max-width: 420px) {
  .page-contact .contact-lead__title {
    font-size: 34px;
  }

  .page-contact .chan-card,
  .page-contact .chan-note,
  .page-contact .checklist-wrap,
  .page-contact .tone-band {
    padding-inline: 16px;
  }

  .page-contact .flow {
    padding-left: 30px;
  }

  .page-contact .flow__num {
    left: -30px;
    width: 21px;
    height: 21px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .chan-card,
  .page-contact .flow__tip,
  .page-contact .checklist__item input {
    transition: none;
  }

  .page-contact .flow__tip {
    opacity: 1;
    visibility: visible;
    transform: none;
  }
}