.page-contact {
  --pc-gap: 22px;
  --pc-rail-w: 300px;
}

/* ---------- Hero ---------- */
.page-contact .contact-hero {
  padding-top: 26px;
  padding-bottom: 46px;
  background:
    radial-gradient(115% 85% at 88% -14%, rgba(255, 106, 26, 0.16), transparent 62%),
    radial-gradient(90% 70% at 6% 0%, rgba(75, 224, 208, 0.08), transparent 55%),
    linear-gradient(180deg, var(--deep-900) 0%, var(--deep-800) 100%);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-hero__title {
  margin: 14px 0 0;
  max-width: 20ch;
  font-family: var(--font-heading);
  font-size: clamp(30px, 6vw, 52px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--warm);
}

.page-contact .contact-hero__lede {
  margin: 18px 0 0;
  max-width: 62ch;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.85;
  color: rgba(245, 241, 234, 0.82);
}

.page-contact .hero-facts {
  display: grid;
  gap: 1px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-contact .hero-facts__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 18px;
  background: var(--deep-800);
}

.page-contact .hero-facts__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--graphite);
}

.page-contact .hero-facts__val {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 700;
  color: var(--warm);
}

/* ---------- 渠道 + 主内容 双栏 ---------- */
.page-contact .contact-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
  align-items: start;
}

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

.page-contact .channel-card {
  position: relative;
  padding: 20px 20px 22px;
  background: linear-gradient(160deg, rgba(12, 37, 66, 0.94), rgba(6, 24, 46, 0.94));
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(180deg, var(--race), rgba(255, 106, 26, 0));
}

.page-contact .channel-card__tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--graphite);
}

.page-contact .channel-card__title {
  margin: 10px 0 0;
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--sea-500);
}

.page-contact .channel-card__value {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--warm);
  word-break: break-word;
}

.page-contact .channel-card__value--addr {
  font-size: 15px;
  letter-spacing: 0.02em;
}

.page-contact .channel-card__use {
  margin: 12px 0 0;
  font-family: var(--font-body);
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(154, 167, 180, 0.96);
}

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

.page-contact .contact-main__title,
.page-contact .section-title {
  margin: 12px 0 0;
  font-family: var(--font-heading);
  font-size: clamp(22px, 3.6vw, 32px);
  font-weight: 800;
  line-height: 1.28;
  color: var(--warm);
}

.page-contact .section--warm .section-title {
  color: var(--ink);
}

.page-contact .contact-main__lede,
.page-contact .section-lede {
  margin: 14px 0 0;
  max-width: 66ch;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.85;
  color: rgba(245, 241, 234, 0.78);
}

.page-contact .section--warm .section-lede {
  color: #3a4754;
}

/* ---------- 连线式对应图 ---------- */
.page-contact .route-map {
  margin: 26px 0 0;
  border-top: 1px solid var(--line);
}

.page-contact .route-map__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(30, 90, 138, 0.34);
}

.page-contact .route-map__label {
  font-family: var(--font-body);
  font-size: 14.5px;
  color: rgba(245, 241, 234, 0.9);
}

.page-contact .route-map__arrow {
  display: block;
  height: 1px;
  background: linear-gradient(90deg, var(--deep-600), var(--neon));
  transform-origin: left center;
}

.page-contact .route-map__target {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--neon);
}

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

.page-contact .figure__frame {
  overflow: hidden;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background:
    repeating-linear-gradient(135deg, rgba(30, 90, 138, 0.22) 0 1px, transparent 1px 14px),
    var(--deep-800);
}

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

.page-contact .figure__caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--graphite);
}

/* ---------- 问题类型分段 ---------- */
.page-contact .route-tabs {
  margin-top: 26px;
}

.page-contact .tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-contact .tabs__tab {
  padding: 9px 16px;
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 600;
  color: rgba(245, 241, 234, 0.72);
  background: rgba(12, 37, 66, 0.7);
  border: 1px solid var(--line);
  border-radius: 999px;
  cursor: pointer;
  transition: color 160ms var(--ease), background-color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-contact .tabs__tab:hover {
  color: var(--warm);
  border-color: var(--sea-500);
}

.page-contact .tabs__tab[aria-selected="true"] {
  color: #1a0d04;
  background: var(--race);
  border-color: var(--race);
}

.page-contact .tabs__tab:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 2px;
}

.page-contact .tabs__panel {
  padding: 22px 0 4px;
  animation: pc-fade 160ms var(--ease) both;
}

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

@keyframes pc-fade {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}

.page-contact .route-rec {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--graphite);
  background: rgba(75, 224, 208, 0.08);
  border-left: 3px solid var(--neon);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.page-contact .route-rec strong {
  font-family: var(--font-heading);
  font-size: 14px;
  letter-spacing: 0;
  color: var(--warm);
}

.page-contact .route-body {
  margin: 16px 0 0;
  max-width: 66ch;
  font-family: var(--font-body);
  font-size: 15.5px;
  line-height: 1.86;
  color: rgba(245, 241, 234, 0.8);
}

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

.page-contact .route-points li {
  position: relative;
  padding-left: 22px;
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(154, 167, 180, 0.98);
}

.page-contact .route-points li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 0.72em;
  width: 8px;
  height: 2px;
  background: var(--race);
}

/* ---------- 信息准备清单 ---------- */
.page-contact .prep-shell {
  display: grid;
  gap: 28px;
}

.page-contact .prep-intro {
  max-width: 64ch;
}

.page-contact .prep-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-contact .prep-list__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  padding: 20px 18px;
  background: var(--deep-800);
}

.page-contact .prep-list__num {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 600;
  line-height: 1;
  color: var(--race);
}

.page-contact .prep-list__title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 700;
  color: var(--warm);
}

.page-contact .prep-list__body p {
  margin: 8px 0 0;
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(154, 167, 180, 0.98);
}

.page-contact .prep-note {
  margin: 0;
  max-width: 66ch;
  padding-left: 16px;
  border-left: 3px solid var(--sea-500);
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(245, 241, 234, 0.74);
}

/* ---------- 回复节奏 ---------- */
.page-contact .cadence-track {
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 18px;
  counter-reset: none;
}

.page-contact .cadence-track__step {
  position: relative;
  padding: 18px 20px;
  background: rgba(6, 24, 46, 0.6);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}

.page-contact .cadence-track__step::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  bottom: 18px;
  width: 2px;
  background: linear-gradient(180deg, var(--race), rgba(255, 106, 26, 0));
  border-radius: 2px;
}

.page-contact .cadence-track__idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--neon);
}

.page-contact .cadence-track__step h3 {
  margin: 8px 0 0;
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 700;
  color: var(--warm);
}

.page-contact .cadence-track__step p {
  margin: 8px 0 0;
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.82;
  color: rgba(154, 167, 180, 0.98);
}

.page-contact .cadence-note {
  margin: 22px 0 0;
  max-width: 66ch;
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(245, 241, 234, 0.72);
}

/* ---------- 地址与备案 ---------- */
.page-contact .records-shell {
  display: grid;
  gap: 26px;
}

.page-contact .records-block {
  padding: 22px;
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid rgba(20, 32, 43, 0.12);
  border-radius: var(--radius-md);
}

.page-contact .records-block .mono-index {
  color: #6d7a86;
}

.page-contact .records-line {
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink);
  word-break: break-word;
}

.page-contact .records-line--addr {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
}

.page-contact .records-body {
  margin: 12px 0 0;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.85;
  color: #3a4754;
}

.page-contact .records-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  margin: 16px 0 0;
}

.page-contact .records-links a {
  font-family: var(--font-body);
  font-size: 14.5px;
  font-weight: 600;
  color: #1d5c8c;
  text-decoration: none;
  border-bottom: 1px solid rgba(59, 135, 191, 0.5);
}

.page-contact .records-links a:hover {
  color: var(--race);
  border-bottom-color: var(--race);
}

/* ---------- 结尾 ---------- */
.page-contact .contact-closing {
  position: relative;
  background: var(--deep-900);
  border-top: 1px solid var(--line);
}

.page-contact .contact-closing__frame {
  overflow: hidden;
  max-height: 320px;
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-closing__frame img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  opacity: 0.6;
}

.page-contact .contact-closing__body {
  padding-top: 30px;
  padding-bottom: 46px;
}

.page-contact .contact-closing__title {
  margin: 12px 0 0;
  max-width: 24ch;
  font-family: var(--font-heading);
  font-size: clamp(22px, 3.6vw, 30px);
  font-weight: 800;
  line-height: 1.3;
  color: var(--warm);
}

.page-contact .contact-closing__text {
  margin: 14px 0 0;
  max-width: 62ch;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.85;
  color: rgba(245, 241, 234, 0.76);
}

.page-contact .contact-closing__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 22px 0 0;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .hero-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .route-map__row {
    grid-template-columns: minmax(0, 1fr) 64px minmax(0, 1fr);
    align-items: center;
    gap: 14px;
  }

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

  .page-contact .records-shell {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-shell {
    grid-template-columns: var(--pc-rail-w) minmax(0, 1fr);
    gap: 40px;
  }

  .page-contact .contact-rail {
    position: sticky;
    top: calc(var(--header-h) + 20px);
  }

  .page-contact .prep-shell {
    grid-template-columns: minmax(0, 340px) minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }

  .page-contact .contact-hero {
    padding-top: 34px;
    padding-bottom: 58px;
  }

  .page-contact .contact-closing__frame {
    max-height: 380px;
  }
}

@media (min-width: 1200px) {
  .page-contact .cadence-track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

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

  .page-contact .tabs__tab {
    transition: none;
  }
}