.page-contact {
  position: relative;
}

/* ================= 首屏 ================= */
.page-contact .contact-top {
  position: relative;
  isolation: isolate;
  overflow: hidden;
}

.page-contact .contact-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

.page-contact .contact-bg__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .18;
}

.page-contact .contact-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(15, 26, 20, .58) 0%, rgba(15, 26, 20, .86) 60%, var(--ink) 100%),
    repeating-linear-gradient(90deg, rgba(46, 74, 56, .45) 0 1px, transparent 1px 56px),
    repeating-linear-gradient(0deg, rgba(46, 74, 56, .45) 0 1px, transparent 1px 56px);
}

.page-contact .contact-top .crumbs {
  padding-top: 20px;
}

.page-contact .hero-grid {
  display: grid;
  gap: 36px;
  padding: 30px 0 56px;
}

.page-contact .hero-copy h1 {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(30px, 7.2vw, 54px);
  line-height: 1.06;
  letter-spacing: .012em;
  color: var(--white);
  text-wrap: balance;
}

.page-contact .hero-lede {
  margin: 18px 0 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.78;
  color: var(--neutral);
}

.page-contact .hero-facts {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .hero-facts li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 11px 0;
  border-top: 1px solid var(--line);
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--mist);
}

.page-contact .hero-facts .mono {
  min-width: 74px;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--data);
}

/* ================= 联络卡片 ================= */
.page-contact .hero-cards {
  display: grid;
  gap: 14px;
}

.page-contact .ccard {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 22px 20px 20px;
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: 0 1px 2px rgba(0, 0, 0, .35);
  transition: border-color var(--t-base), background var(--t-base);
}

.page-contact .ccard::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 16px;
  height: 16px;
  border-top: 2px solid var(--signal);
  border-left: 2px solid var(--signal);
  opacity: .7;
  transition: opacity var(--t-fast);
  pointer-events: none;
}

.page-contact .ccard:hover {
  border-color: var(--signal);
  background: var(--panel-2);
}

.page-contact .ccard:hover::before {
  opacity: 1;
}

.page-contact .ccard__tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--mist);
}

.page-contact .ccard__value {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: clamp(19px, 5.2vw, 27px);
  line-height: 1.25;
  letter-spacing: .01em;
  color: var(--white);
  word-break: break-word;
}

.page-contact .ccard__value--sm {
  font-size: clamp(16px, 4.2vw, 20px);
  line-height: 1.5;
}

.page-contact .ccard__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--neutral);
}

.page-contact .ccard__foot {
  margin-top: auto;
  padding-top: 4px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.page-contact .copy-btn {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--mist);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  cursor: pointer;
  transition: color var(--t-fast), border-color var(--t-fast), background var(--t-fast);
}

.page-contact .copy-btn:hover,
.page-contact .copy-btn:focus-visible {
  color: var(--signal);
  border-color: var(--signal);
  background: rgba(255, 106, 26, .07);
  outline: none;
}

.page-contact .copy-btn.is-copied {
  color: var(--ink);
  background: var(--signal);
  border-color: var(--signal);
}

.page-contact .copy-status {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--signal);
  min-height: 1em;
}

/* ================= 区块骨架 ================= */
.page-contact .block {
  padding: 54px 0;
  border-top: 1px solid var(--line);
}

.page-contact .block--last {
  padding-bottom: 24px;
}

.page-contact .prose {
  color: var(--neutral);
}

/* ================= 通道列表 ================= */
.page-contact .route-list {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .route-item {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 16px;
  padding: 20px 0 20px 14px;
  border-bottom: 1px solid var(--line);
  transition: background var(--t-base);
}

.page-contact .route-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--signal);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--t-base);
}

.page-contact .route-item:hover::before {
  transform: scaleY(1);
}

.page-contact .route-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--data);
  padding-top: 4px;
}

.page-contact .route-name {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: .02em;
  color: var(--white);
}

.page-contact .route-desc {
  margin: 6px 0 0;
  max-width: 42em;
  font-size: 14px;
  line-height: 1.72;
  color: var(--neutral);
}

.page-contact .route-link {
  grid-column: 2;
  justify-self: start;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 106, 26, .35);
  padding-bottom: 2px;
  transition: border-color var(--t-fast);
}

.page-contact .route-link:hover {
  border-bottom-color: var(--signal);
}

/* ================= 响应节奏 ================= */
.page-contact .pace-panel {
  display: grid;
  gap: 28px;
  padding: 28px 22px;
  background: var(--panel);
  border: 1px solid var(--line);
}

.page-contact .pace-lead .prose {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.78;
}

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

.page-contact .pace-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 2px 14px;
  align-items: baseline;
  padding: 16px 0;
  border-bottom: 1px dashed var(--line);
}

.page-contact .pace-item:first-child {
  border-top: 1px dashed var(--line);
}

.page-contact .pace-num {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 30px;
  line-height: 1;
  letter-spacing: -.01em;
  color: var(--data);
}

.page-contact .pace-unit {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--mist);
}

.page-contact .pace-desc {
  grid-column: 1 / -1;
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.68;
  color: var(--neutral);
}

/* ================= 内容合作 ================= */
.page-contact .coop-grid {
  display: grid;
  gap: 34px;
}

.page-contact .coop-copy .prose {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.78;
}

.page-contact .coop-stats {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .coop-stats li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 15px 18px;
  background: var(--panel);
  font-size: 13px;
  line-height: 1.6;
  color: var(--neutral);
}

.page-contact .coop-stats .mono {
  flex: none;
  min-width: 62px;
  font-family: var(--font-mono);
  font-size: 17px;
  color: var(--white);
}

.page-contact .coop-steps {
  padding: 24px 22px;
  background: var(--panel);
  border: 1px solid var(--line);
}

.page-contact .coop-steps h3 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: .02em;
  color: var(--white);
}

.page-contact .coop-steps__note {
  margin: 6px 0 0;
  font-size: 13px;
  color: var(--mist);
}

.page-contact .coop-steps ol {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  counter-reset: coop;
  display: grid;
  gap: 14px;
}

.page-contact .coop-steps li {
  counter-increment: coop;
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 12px;
  font-size: 14px;
  line-height: 1.68;
  color: var(--neutral);
}

.page-contact .coop-steps li::before {
  content: counter(coop, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--signal);
  padding-top: 3px;
}

/* ================= 反馈清单 ================= */
.page-contact .info-grid {
  display: grid;
  gap: 1px;
  margin-top: 30px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .info-card {
  padding: 22px 20px;
  background: var(--panel);
  transition: background var(--t-base);
}

.page-contact .info-card:hover {
  background: var(--panel-2);
}

.page-contact .info-mark {
  display: block;
  width: 22px;
  height: 2px;
  margin-bottom: 14px;
  background: var(--signal);
}

.page-contact .info-card h3 {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: .02em;
  color: var(--white);
}

.page-contact .info-card p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--neutral);
}

.page-contact .info-tip {
  margin: 18px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--signal-dark);
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

/* ================= 服务范围 ================= */
.page-contact .coverage {
  display: grid;
  gap: 30px;
}

.page-contact .coverage-copy .prose {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.78;
}

.page-contact .coverage-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
}

.page-contact .coverage-list li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 12px 0;
  border-top: 1px solid var(--line);
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--neutral);
}

.page-contact .coverage-list .mono {
  flex: none;
  min-width: 86px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--data);
}

.page-contact .coverage-note {
  margin: 20px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .coverage-note a {
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 106, 26, .35);
  transition: border-color var(--t-fast);
}

.page-contact .coverage-note a:hover {
  border-bottom-color: var(--signal);
}

.page-contact .coverage-figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--line);
}

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

.page-contact .coverage-figure::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background-image: radial-gradient(circle, rgba(233, 239, 234, .55) 1px, transparent 1.3px);
  background-size: 20px 20px;
  opacity: .32;
}

/* ================= 回到顶部 ================= */
.page-contact .back-top {
  margin: 0;
  padding: 20px 0 64px;
  border-top: 1px solid var(--line);
}

.page-contact .back-top a {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--mist);
  text-decoration: none;
  transition: color var(--t-fast);
}

.page-contact .back-top a:hover {
  color: var(--signal);
}

/* ================= 响应式 ================= */
@media (min-width: 700px) {
  .page-contact .hero-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-contact .ccard--wide .ccard__value {
    font-size: clamp(24px, 3.4vw, 32px);
  }

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

@media (min-width: 820px) {
  .page-contact .block {
    padding: 76px 0;
  }

  .page-contact .block--last {
    padding-bottom: 32px;
  }

  .page-contact .route-item {
    grid-template-columns: 72px minmax(0, 1fr) auto;
    align-items: center;
    gap: 30px;
    padding: 26px 20px 26px 20px;
  }

  .page-contact .route-item:hover {
    background: linear-gradient(90deg, rgba(255, 106, 26, .07), transparent 78%);
  }

  .page-contact .route-num {
    padding-top: 0;
  }

  .page-contact .route-link {
    grid-column: 3;
    margin-top: 0;
    align-self: center;
  }
}

@media (min-width: 960px) {
  .page-contact .hero-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 56px;
    padding: 56px 0 96px;
    align-items: start;
  }

  .page-contact .pace-panel {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    gap: 48px;
    padding: 40px 36px;
    align-items: start;
  }

  .page-contact .coop-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, .88fr);
    gap: 56px;
    align-items: start;
  }

  .page-contact .coverage {
    grid-template-columns: minmax(0, 1fr) minmax(0, .9fr);
    gap: 52px;
    align-items: center;
    padding-top: 30px;
  }
}

@media (min-width: 1024px) {
  .page-contact .info-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ccard,
  .page-contact .route-item,
  .page-contact .route-item::before,
  .page-contact .copy-btn,
  .page-contact .info-card {
    transition: none;
  }
}