.page-contact {
  --cc-mail: var(--cyan);
  --cc-phone: var(--orange);
  --cc-addr: var(--gold);
  background: var(--night);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: clip;
}

/* 面包屑 */
.page-contact .breadcrumb {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mist);
  padding: clamp(20px, 3vw, 32px) 0 0;
}
.page-contact .breadcrumb a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease;
}
.page-contact .breadcrumb a:hover {
  border-color: currentColor;
}
.page-contact .breadcrumb span[aria-hidden] {
  color: var(--hair);
  margin: 0 6px;
}

/* 首屏 */
.page-contact .contact-hero {
  padding: clamp(24px, 4vw, 44px) 0 clamp(20px, 3vw, 30px);
}
.page-contact .contact-eyebrow {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--cyan);
}
.page-contact .contact-eyebrow::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  background: linear-gradient(90deg, var(--hair), transparent);
}
.page-contact h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 5.4vw, 56px);
  line-height: 1.08;
  letter-spacing: -.02em;
  margin: 0 0 20px;
  max-width: 15em;
}
.page-contact .contact-hero__lede {
  max-width: 42em;
  margin: 0;
  font-size: clamp(15.5px, 1.9vw, 18px);
  line-height: 1.85;
  color: var(--mist);
}

/* 汇聚图 */
.page-contact .contact-arc {
  margin: clamp(22px, 3.6vw, 40px) auto clamp(8px, 2vw, 16px);
  padding-left: 24px;
  padding-right: 24px;
}
.page-contact .contact-arc img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-top: 1px solid var(--hair);
  border-bottom: 1px solid var(--hair);
  filter: saturate(.92);
}
.page-contact .contact-arc figcaption {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--mist);
}

/* 通用区块 */
.page-contact .block {
  padding: clamp(36px, 5.4vw, 74px) 0;
}
.page-contact .block + .block {
  border-top: 1px solid rgba(143, 166, 163, .14);
}
.page-contact .sec-head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--hair);
  margin-bottom: clamp(20px, 3vw, 30px);
}
.page-contact .sec-no {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--cyan);
  flex: none;
}
.page-contact .sec-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 3vw, 29px);
  line-height: 1.28;
  letter-spacing: -.015em;
}
.page-contact .sec-lede {
  max-width: 46em;
  margin: 0 0 clamp(22px, 3vw, 34px);
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--mist);
}
.page-contact a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(41, 231, 206, .34);
  transition: border-color .2s ease;
}
.page-contact a:hover {
  border-color: var(--cyan);
}

/* 三条通道 */
.page-contact .channels__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
.page-contact .channel {
  --band: var(--mist);
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 26px 22px 24px;
  background: var(--green);
  border: 1px solid rgba(143, 166, 163, .2);
  transition: border-color .25s ease;
}
.page-contact .channel:hover {
  border-color: rgba(143, 166, 163, .42);
}
.page-contact .channel__band {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--band);
  transition: height .28s cubic-bezier(.2, .7, .3, 1);
}
.page-contact .channel:hover .channel__band {
  height: 9px;
}
.page-contact .channel--mail { --band: var(--cc-mail); }
.page-contact .channel--phone { --band: var(--cc-phone); }
.page-contact .channel--addr { --band: var(--cc-addr); }

.page-contact .channel__label {
  margin: 10px 0 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--mist);
}
.page-contact .channel__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -.01em;
}
.page-contact .channel__value {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: clamp(14.5px, 1.9vw, 16.5px);
  line-height: 1.55;
  color: var(--band);
  overflow-wrap: anywhere;
  font-variant-numeric: tabular-nums;
}
.page-contact .channel__desc {
  margin: 0 0 22px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--mist);
}
.page-contact .channel__action {
  margin-top: auto;
}
.page-contact .btn--copy {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 18px;
  background: transparent;
  border: 1px solid var(--hair);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .08em;
  cursor: pointer;
  transition: border-color .2s ease, color .2s ease;
}
.page-contact .channel:hover .btn--copy {
  border-color: var(--band);
  color: var(--band);
}
.page-contact .btn--copy:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}
.page-contact .btn--copy.is-done,
.page-contact .btn--copy[data-copy-state="done"] {
  border-color: var(--cyan);
  color: var(--cyan);
}

/* 纠错清单 */
.page-contact .check-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
.page-contact .check-list {
  list-style: none;
  counter-reset: ck;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--hair);
}
.page-contact .check-list li {
  counter-increment: ck;
  position: relative;
  padding: 16px 0 16px 48px;
  border-bottom: 1px solid var(--hair);
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper);
}
.page-contact .check-list li::before {
  content: counter(ck, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 19px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--cyan);
}
.page-contact .check-note {
  padding: 22px 22px 24px;
  background: var(--green);
  border-left: 3px solid var(--cyan);
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--mist);
}
.page-contact .check-note p {
  margin: 0 0 14px;
}
.page-contact .check-note p:last-child {
  margin-bottom: 0;
}

/* 热线 */
.page-contact .hotline-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}
.page-contact .hotline-list__lead {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper);
}
.page-contact .hotline-list ul {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
}
.page-contact .hotline-list li {
  position: relative;
  padding: 13px 0 13px 22px;
  border-bottom: 1px solid rgba(143, 166, 163, .16);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--mist);
}
.page-contact .hotline-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 21px;
  width: 8px;
  height: 1px;
  background: var(--orange);
}
.page-contact .hotline-list__foot {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .hour-band {
  padding: 24px 22px 26px;
  background: var(--night-deep);
  border: 1px solid var(--hair);
}
.page-contact .hour-band__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--mist);
}
.page-contact .hour-band__value {
  margin: 0 0 20px;
  font-family: var(--font-mono);
  font-size: clamp(17px, 2.6vw, 22px);
  letter-spacing: .02em;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}
.page-contact .hour-band__track {
  position: relative;
  height: 10px;
  background: rgba(143, 166, 163, .16);
  overflow: hidden;
}
.page-contact .hour-band__fill {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--orange), var(--gold) 78%, var(--cyan));
  animation: pc-band 3.2s ease-in-out infinite;
}
.page-contact .hour-band__scale {
  display: flex;
  justify-content: space-between;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--mist);
  font-variant-numeric: tabular-nums;
}
.page-contact .hour-band__note {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}
@keyframes pc-band {
  0%, 100% { opacity: .78; }
  50% { opacity: 1; }
}

/* 合作 */
.page-contact .coop {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}
.page-contact .coop__text p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--mist);
}
.page-contact .coop__text p:last-child {
  margin-bottom: 0;
}
.page-contact .coop__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--hair);
}
.page-contact .coop__list li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3px;
  padding: 14px 0;
  border-bottom: 1px solid var(--hair);
}
.page-contact .coop__k {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--gold);
}
.page-contact .coop__v {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--paper);
}

/* 响应节奏 */
.page-contact .pace-figure {
  margin: 0 0 clamp(24px, 3.4vw, 36px);
}
.page-contact .pace-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  border: 1px solid var(--hair);
}
.page-contact .pace-figure figcaption {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--mist);
}
.page-contact .pace-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--hair);
  border: 1px solid var(--hair);
}
.page-contact .pace-card {
  padding: 22px 20px 24px;
  background: var(--night);
}
.page-contact .pace-card__tag {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--wine);
  color: var(--gold);
}
.page-contact .pace-card__body {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--mist);
}

/* 站点信息 */
.page-contact .site-facts {
  margin: 0;
  padding: 4px 0;
  background: var(--night-deep);
  border: 1px solid var(--hair);
}
.page-contact .site-facts__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 14px 20px;
  border-bottom: 1px solid rgba(143, 166, 163, .12);
}
.page-contact .site-facts__row:last-child {
  border-bottom: 0;
}
.page-contact .site-facts dt {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--mist);
}
.page-contact .site-facts dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--cyan);
  overflow-wrap: anywhere;
  font-variant-numeric: tabular-nums;
}

/* 窄屏兜底 */
@media (max-width: 380px) {
  .page-contact .channel {
    padding: 22px 18px 20px;
  }
  .page-contact .check-list li {
    padding-left: 38px;
  }
  .page-contact .site-facts__row {
    padding: 13px 16px;
  }
}

/* 平板及以上 */
@media (min-width: 700px) {
  .page-contact .check-grid {
    grid-template-columns: 7fr 5fr;
    gap: 36px;
    align-items: start;
  }
  .page-contact .coop {
    grid-template-columns: 6fr 6fr;
    gap: 40px;
    align-items: start;
  }
  .page-contact .coop__list li {
    grid-template-columns: 132px 1fr;
    gap: 18px;
    align-items: baseline;
  }
  .page-contact .pace-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-contact .site-facts__row {
    grid-template-columns: 172px 1fr;
    gap: 22px;
    align-items: baseline;
    padding: 15px 22px;
  }
}

/* 桌面 */
@media (min-width: 960px) {
  .page-contact .channels__row {
    grid-template-columns: 5fr 4fr 3fr;
    gap: 20px;
    align-items: start;
  }
  .page-contact .channel--mail { min-height: 336px; }
  .page-contact .channel--phone { min-height: 296px; }
  .page-contact .channel--addr { min-height: 256px; }

  .page-contact .hotline-panel {
    grid-template-columns: 6fr 6fr;
    gap: 46px;
    align-items: start;
  }
  .page-contact .contact-arc {
    padding-left: 24px;
    padding-right: 24px;
  }
}

/* 动效降级 */
@media (prefers-reduced-motion: reduce) {
  .page-contact .channel__band,
  .page-contact .btn--copy,
  .page-contact .channel {
    transition: none;
  }
  .page-contact .hour-band__fill {
    animation: none;
    opacity: .92;
  }
}
</main>