.page-contact {
  --contact-paper-line: rgba(199, 206, 210, 0.18);
  --contact-signal-soft: rgba(255, 106, 26, 0.18);
  background: var(--ink-green);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-contact .container {
  width: min(100%, var(--wrap));
  margin-inline: auto;
  padding-inline: clamp(16px, 4vw, 40px);
}

.page-contact .section__head {
  margin-bottom: clamp(24px, 3vw, 40px);
  max-width: 60ch;
}

.page-contact .section__head--left {
  text-align: left;
}

.page-contact .section__title {
  margin: 8px 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: 0.02em;
  font-size: clamp(24px, 3vw, 36px);
  line-height: 1.14;
  color: var(--paper);
}

.page-contact .section__lead {
  margin: 0;
  font-size: clamp(14px, 1.4vw, 16px);
  line-height: 1.75;
  color: var(--text-soft);
  max-width: 52ch;
}

.page-contact .eyebrow {
  color: var(--signal);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: clamp(20px, 3vw, 40px) 0 clamp(36px, 5vw, 72px);
  background:
    linear-gradient(160deg, var(--ink-green) 0%, #0b2119 58%, var(--carbon) 100%);
  overflow: hidden;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: -14%;
  right: -8%;
  width: clamp(220px, 46vw, 620px);
  aspect-ratio: 1 / 1;
  background: var(--deep-turf);
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
  opacity: 0.55;
  pointer-events: none;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    90deg,
    rgba(199, 206, 210, 0.06) 0 1px,
    transparent 1px 88px
  );
  pointer-events: none;
}

.page-contact .contact-hero .container {
  position: relative;
  z-index: 1;
}

.page-contact .breadcrumbs {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-mute);
}

.page-contact .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .breadcrumbs__link,
.page-contact .breadcrumbs__current {
  color: inherit;
  text-decoration: none;
}

.page-contact .breadcrumbs__link:hover {
  color: var(--signal);
}

.page-contact .breadcrumbs__current {
  color: var(--signal);
}

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

.page-contact .contact-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
  align-items: end;
  margin-top: clamp(20px, 3vw, 32px);
}

.page-contact .contact-hero__text h1 {
  margin: 12px 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: 0.01em;
  font-size: clamp(30px, 6vw, 58px);
  line-height: 1.04;
  color: var(--paper);
  text-wrap: balance;
}

.page-contact .contact-hero__lead {
  margin: 0;
  max-width: 44ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
  color: var(--text-soft);
}

.page-contact .contact-hero__media {
  margin: 0;
}

.page-contact .media-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  background: var(--deep-turf);
}

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

.page-contact .media-frame__caption {
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-mute);
}

/* ---------- 三类通道 ---------- */
.page-contact .contact-routes {
  padding: clamp(48px, 7vw, 96px) 0 clamp(40px, 6vw, 80px);
  background: var(--ink-green);
  border-top: 1px solid var(--contact-paper-line);
}

.page-contact .routes-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
}

.page-contact .route-card {
  position: relative;
  padding: clamp(22px, 2.6vw, 34px);
  padding-left: clamp(74px, 8vw, 108px);
  background: var(--deep-turf);
  border: 1px solid var(--line);
  border-left: 3px solid var(--line-strong);
  transition: transform 220ms ease, border-left-color 220ms ease, background-color 220ms ease;
}

.page-contact .route-card__index {
  position: absolute;
  top: clamp(20px, 2.4vw, 32px);
  left: clamp(18px, 2.2vw, 26px);
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 3.6vw, 44px);
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--silver);
  font-variant-numeric: tabular-nums;
  transition: color 220ms ease;
}

.page-contact .route-card__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(17px, 1.8vw, 21px);
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-contact .route-card__text {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text-soft);
}

.page-contact .route-card__meta {
  margin: 0;
  padding-top: 12px;
  border-top: 1px dashed var(--contact-paper-line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-mute);
}

.page-contact .route-card__meta strong {
  color: var(--amber);
  font-weight: 700;
}

.page-contact .route-card--archive {
  box-shadow: inset 0 0 0 1px rgba(122, 33, 53, 0.55);
}

.page-contact .route-card:hover {
  transform: translateX(2px);
  border-left-color: var(--signal);
  background-color: #16513f;
}

.page-contact .route-card:hover .route-card__index {
  color: var(--signal);
}

/* ---------- 邮箱 vs 电话 ---------- */
.page-contact .contact-channels {
  padding: clamp(48px, 7vw, 96px) 0;
  background: var(--carbon);
  border-top: 1px solid var(--contact-paper-line);
  border-bottom: 1px solid var(--contact-paper-line);
}

.page-contact .channels-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3vw, 40px);
}

.page-contact .channels-split__intro h2 {
  margin-top: 10px;
}

.page-contact .channels-split__pair {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
}

.page-contact .channel-card {
  padding: clamp(22px, 2.6vw, 32px);
  background: linear-gradient(170deg, rgba(20, 69, 58, 0.9) 0%, rgba(14, 43, 35, 0.9) 100%);
  border: 1px solid var(--line);
  border-top: 3px solid var(--signal);
}

.page-contact .channel-card--phone {
  border-top-color: var(--amber);
}

.page-contact .channel-card h3 {
  margin: 14px 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 2vw, 22px);
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-contact .channel-card__value {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(15px, 1.7vw, 19px);
  letter-spacing: 0.02em;
  color: var(--paper);
  word-break: break-all;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--contact-paper-line);
}

.page-contact .channel-card__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .channel-card__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--text-soft);
}

.page-contact .channel-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 10px;
  height: 2px;
  background: var(--signal);
}

.page-contact .channel-card--phone .channel-card__list li::before {
  background: var(--amber);
}

/* ---------- 处理流程 ---------- */
.page-contact .contact-flow {
  padding: clamp(48px, 7vw, 96px) 0;
  background: var(--ink-green);
}

.page-contact .flow-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 48px);
  align-items: start;
}

.page-contact .flow-grid__body h2 {
  margin-top: 10px;
  margin-bottom: 24px;
}

.page-contact .flow-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  counter-reset: flow;
}

.page-contact .flow-step {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  padding: 0 0 24px 0;
}

.page-contact .flow-step:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 21px;
  top: 46px;
  bottom: 4px;
  width: 1px;
  background: repeating-linear-gradient(
    to bottom,
    var(--line-strong) 0 5px,
    transparent 5px 11px
  );
}

.page-contact .flow-step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line-strong);
  background: var(--deep-turf);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--signal);
  font-variant-numeric: tabular-nums;
}

.page-contact .flow-step__body h3 {
  margin: 8px 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-contact .flow-step__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--text-soft);
  max-width: 48ch;
}

.page-contact .flow-grid__media {
  margin: 0;
}

/* ---------- 准备清单 ---------- */
.page-contact .contact-prep {
  padding: clamp(48px, 7vw, 96px) 0;
  background: var(--deep-turf);
  border-top: 1px solid var(--contact-paper-line);
}

.page-contact .prep-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3vw, 44px);
  align-items: start;
}

.page-contact .prep-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--contact-paper-line);
}

.page-contact .prep-list__item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 16px 4px;
  border-bottom: 1px solid var(--contact-paper-line);
}

.page-contact .prep-list__key {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--amber);
}

.page-contact .prep-list__desc {
  font-size: 14px;
  line-height: 1.76;
  color: var(--text-soft);
}

/* ---------- 联系信息 ---------- */
.page-contact .contact-info {
  padding: clamp(48px, 7vw, 96px) 0 clamp(56px, 8vw, 104px);
  background: var(--carbon);
  border-top: 1px solid var(--contact-paper-line);
}

.page-contact .info-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--contact-paper-line);
  border: 1px solid var(--contact-paper-line);
  margin: 0;
}

.page-contact .info-cell {
  background: var(--carbon);
  padding: clamp(18px, 2.2vw, 26px);
}

.page-contact .info-cell__label {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-mute);
}

.page-contact .info-cell__value {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(15px, 1.7vw, 19px);
  letter-spacing: 0.02em;
  line-height: 1.5;
  color: var(--paper);
  word-break: break-word;
  font-variant-numeric: tabular-nums;
}

.page-contact .info-cell__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  font-size: 15px;
}

.page-contact .info-cell__links a {
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 200ms ease, color 200ms ease;
}

.page-contact .info-cell__links a:hover {
  color: var(--amber);
  border-bottom-color: var(--amber);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
  }

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

  .page-contact .prep-list__item {
    grid-template-columns: minmax(120px, 168px) minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }

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

  .page-contact .info-cell--wide {
    grid-column: 1 / -1;
  }
}

@media (min-width: 880px) {
  .page-contact .routes-grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    grid-template-rows: auto auto;
  }

  .page-contact .route-card--entry {
    grid-row: 1 / span 2;
  }
}

@media (min-width: 960px) {
  .page-contact .channels-split {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    align-items: start;
  }

  .page-contact .flow-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    align-items: stretch;
  }

  .page-contact .flow-grid__media {
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .page-contact .prep-grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  }
}

@media (min-width: 1100px) {
  .page-contact .info-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .info-cell--wide {
    grid-column: span 2;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .route-card,
  .page-contact .route-card__index,
  .page-contact .info-cell__links a {
    transition: none;
  }

  .page-contact .route-card:hover {
    transform: none;
  }
}