.page-contact {
  --contact-gap: clamp(20px, 3vw, 32px);
  --flow-gap: 16px;
  background: var(--ink);
  color: var(--fog);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  border-bottom: var(--frame) solid var(--tactical);
}
.page-contact .contact-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.26;
  filter: saturate(0.55) contrast(1.1);
}
.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6, 26, 22, 0.72) 0%, rgba(6, 26, 22, 0.88) 55%, var(--ink) 100%);
  pointer-events: none;
}
.page-contact .contact-hero__inner {
  position: relative;
  z-index: 1;
  padding-top: clamp(48px, 8vw, 104px);
  padding-bottom: clamp(48px, 7vw, 96px);
}
.page-contact .contact-hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--sand);
  margin: 0 0 22px;
  text-transform: uppercase;
}
.page-contact h1 {
  font-family: var(--font-display);
  font-size: clamp(36px, 7vw, 80px);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--fog);
  margin: 0 0 20px;
  max-width: 18ch;
}
.page-contact .contact-hero__lead {
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.75;
  color: var(--fog);
  max-width: 620px;
  margin: 0;
  opacity: 0.88;
}
.page-contact .contact-board {
  margin-top: clamp(32px, 5vw, 44px);
  background: var(--deep);
  box-shadow: var(--shadow-hard);
}
.page-contact .contact-board__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--tactical);
  align-items: center;
}
.page-contact .contact-board__row:last-child {
  border-bottom: 0;
}
.page-contact .contact-board__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--moss);
  text-transform: uppercase;
}
.page-contact .contact-board__phone {
  font-size: clamp(26px, 5vw, 44px);
  font-weight: 700;
  color: var(--sand);
  text-decoration: none;
  letter-spacing: 0.01em;
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
  transition: color var(--dur) var(--ease);
}
.page-contact .contact-board__phone:hover,
.page-contact .contact-board__phone:focus-visible {
  color: var(--signal);
}
.page-contact .contact-board__mail {
  font-size: clamp(13px, 1.7vw, 18px);
  color: var(--cyan);
  text-decoration: none;
  word-break: break-all;
  transition: color var(--dur) var(--ease);
}
.page-contact .contact-board__mail:hover,
.page-contact .contact-board__mail:focus-visible {
  color: var(--signal);
}
.page-contact .contact-board__addr,
.page-contact .contact-board__hours {
  font-size: clamp(15px, 1.6vw, 17px);
  color: var(--fog);
  line-height: 1.5;
}
.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(24px, 3vw, 32px);
}

/* ---------- 咨询分流 ---------- */
.page-contact .contact-routes {
  padding: clamp(48px, 7vw, 88px) 0;
  border-bottom: var(--frame) solid var(--tactical);
}
.page-contact .contact-routes__head {
  max-width: 720px;
  margin-bottom: clamp(28px, 4vw, 44px);
}
.page-contact .contact-routes__kicker,
.page-contact .contact-round__kicker,
.page-contact .contact-flow__kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--sand);
  margin: 0 0 14px;
  text-transform: uppercase;
}
.page-contact h2 {
  font-family: var(--font-display);
  font-size: clamp(26px, 4vw, 44px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.08;
  color: var(--fog);
  margin: 0 0 14px;
}
.page-contact .contact-routes__head p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--moss);
  margin: 0;
}
.page-contact .contact-routes__grid {
  display: grid;
  gap: var(--contact-gap);
  grid-template-columns: 1fr;
}
.page-contact .route-card {
  border: var(--frame) solid var(--tactical);
  background: var(--deep);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.page-contact .route-card[open] {
  border-color: var(--signal);
  box-shadow: var(--shadow-hard);
}
.page-contact .route-card__summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
  user-select: none;
}
.page-contact .route-card__summary::-webkit-details-marker {
  display: none;
}
.page-contact .route-card__no {
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
  background: var(--sand);
  padding: 3px 8px;
  letter-spacing: 0.06em;
}
.page-contact .route-card__title {
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 700;
  color: var(--fog);
  flex: 1;
  letter-spacing: 0.01em;
}
.page-contact .route-card__summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1;
  color: var(--signal);
  transition: transform var(--dur) var(--ease);
}
.page-contact .route-card[open] .route-card__summary::after {
  content: "−";
}
.page-contact .route-card__body {
  padding: 18px 20px 22px;
  border-top: 1px solid var(--tactical);
}
.page-contact .route-card__body p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--moss);
  margin: 0 0 16px;
}
.page-contact .route-card__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 9px;
}
.page-contact .route-card__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--fog);
}
.page-contact .route-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 10px;
  height: 2px;
  background: var(--cyan);
}

/* ---------- 轮次坐标 ---------- */
.page-contact .contact-round {
  padding: clamp(48px, 7vw, 88px) 0;
  border-bottom: var(--frame) solid var(--tactical);
  background: var(--deep);
}
.page-contact .contact-round__grid {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
  grid-template-columns: 1fr;
}
.page-contact .contact-round__desc {
  font-size: 15px;
  line-height: 1.8;
  color: var(--moss);
  margin: 0 0 14px;
}
.page-contact .contact-round__desc a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-contact .contact-round__desc a:hover,
.page-contact .contact-round__desc a:focus-visible {
  color: var(--signal);
}
.page-contact .contact-round__fields {
  display: grid;
  grid-template-columns: 1fr;
  border: var(--frame) solid var(--tactical);
  background: var(--ink);
  box-shadow: var(--shadow-hard);
}
.page-contact .contact-round__field {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 12px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--tactical);
}
.page-contact .contact-round__field:last-child {
  border-bottom: 0;
}
.page-contact .contact-round__field-no {
  font-size: 13px;
  color: var(--sand);
  letter-spacing: 0.06em;
  padding-top: 2px;
}
.page-contact .contact-round__field strong {
  display: block;
  color: var(--fog);
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 5px;
  letter-spacing: 0.01em;
}
.page-contact .contact-round__field p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--moss);
}

/* ---------- 中段图 ---------- */
.page-contact .contact-media {
  padding: clamp(36px, 5vw, 64px) 0;
  border-bottom: var(--frame) solid var(--tactical);
}
.page-contact .contact-media .media-frame {
  border: var(--frame) solid var(--tactical);
  box-shadow: var(--shadow-hard);
  width: 100%;
}

/* ---------- 响应路径 ---------- */
.page-contact .contact-flow {
  padding: clamp(48px, 7vw, 88px) 0;
  border-bottom: var(--frame) solid var(--tactical);
  background: var(--deep);
}
.page-contact .contact-flow__head {
  max-width: 680px;
  margin-bottom: clamp(28px, 4vw, 44px);
}
.page-contact .contact-flow__head p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--moss);
  margin: 0;
}
.page-contact .flow-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--flow-gap);
  list-style: none;
  padding: 0;
  margin: 0;
}
.page-contact .flow-step {
  position: relative;
  padding: 22px 20px 24px;
  border: var(--frame) solid var(--tactical);
  background: var(--ink);
}
.page-contact .flow-step__no {
  display: block;
  font-size: 11px;
  color: var(--sand);
  letter-spacing: 0.16em;
  margin-bottom: 12px;
}
.page-contact .flow-step strong {
  display: block;
  font-size: 16px;
  font-weight: 700;
  color: var(--fog);
  margin-bottom: 8px;
}
.page-contact .flow-step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--moss);
}
.page-contact .contact-flow__note {
  margin: clamp(24px, 3vw, 32px) 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--moss);
}
.page-contact .contact-flow__note a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-contact .contact-flow__note a:hover,
.page-contact .contact-flow__note a:focus-visible {
  color: var(--signal);
}

/* ---------- 到访与邮寄 ---------- */
.page-contact .contact-visit {
  padding: clamp(48px, 7vw, 88px) 0;
}
.page-contact .contact-visit__card {
  position: relative;
  overflow: hidden;
  border: var(--frame) solid var(--tactical);
  background: var(--deep);
  padding: clamp(26px, 4vw, 48px);
  box-shadow: var(--shadow-hard);
}
.page-contact .contact-visit__card::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--tactical) 1px, transparent 1px),
    linear-gradient(90deg, var(--tactical) 1px, transparent 1px);
  background-size: 44px 44px;
  opacity: 0.22;
  pointer-events: none;
}
.page-contact .contact-visit__card > * {
  position: relative;
  z-index: 1;
}
.page-contact .contact-visit__coord {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--sand);
  margin: 0 0 18px;
  text-transform: uppercase;
}
.page-contact .contact-visit__addr {
  font-family: var(--font-display);
  font-size: clamp(24px, 4vw, 38px);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.2;
  color: var(--fog);
  margin: 0 0 16px;
}
.page-contact .contact-visit__note {
  font-size: 15px;
  line-height: 1.8;
  color: var(--moss);
  max-width: 640px;
  margin: 0 0 24px;
}
.page-contact .contact-visit__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 断点 ---------- */
@media (min-width: 600px) {
  .page-contact .contact-board__row {
    grid-template-columns: 96px 1fr;
    gap: 18px;
    padding: 20px 24px;
  }
}

@media (min-width: 760px) {
  .page-contact .contact-routes__grid {
    grid-template-columns: 1fr 1fr;
  }
  .page-contact .contact-round__fields {
    grid-template-columns: 1fr 1fr;
  }
  .page-contact .contact-round__field {
    border-right: 1px solid var(--tactical);
  }
  .page-contact .contact-round__field:nth-child(2n) {
    border-right: 0;
  }
  .page-contact .contact-round__field:nth-child(-n + 2) {
    border-bottom: 1px solid var(--tactical);
  }
  .page-contact .contact-round__field:nth-last-child(-n + 2) {
    border-bottom: 0;
  }
  .page-contact .flow-steps {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-contact .flow-step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 50%;
    right: calc(-1 * var(--flow-gap) - 2px);
    width: calc(var(--flow-gap) + 4px);
    border-top: 2px dashed var(--signal);
    pointer-events: none;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-round__grid {
    grid-template-columns: 320px 1fr;
    gap: clamp(32px, 5vw, 64px);
    align-items: start;
  }
  .page-contact .contact-visit__card {
    padding: clamp(32px, 4vw, 56px);
  }
}
</main>