.page-contact {
  --c-line: 1px solid var(--steel);
  --c-pad: clamp(22px, 4.5vw, 54px);
  background: var(--ink-900);
  color: var(--white);
}

/* 面包屑 */
.page-contact .breadcrumbs {
  margin: 0 0 clamp(18px, 3vw, 30px);
}

.page-contact .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist-dim);
}

.page-contact .breadcrumbs li {
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-contact .breadcrumbs li + li::before {
  content: "/";
  color: var(--steel);
}

.page-contact .breadcrumbs a {
  color: var(--mist);
  text-decoration: none;
  transition: color 200ms var(--ease);
}

.page-contact .breadcrumbs a:hover,
.page-contact .breadcrumbs a:focus-visible {
  color: var(--gold);
}

/* 首屏框景 */
.page-contact .contact-frame {
  position: relative;
  border: var(--c-line);
  background: linear-gradient(180deg, rgba(14, 26, 60, 0.88) 0%, rgba(7, 14, 36, 0.5) 100%);
  padding: var(--c-pad);
}

.page-contact .contact-frame::before,
.page-contact .contact-frame::after {
  content: "";
  position: absolute;
  width: 46px;
  height: 46px;
  pointer-events: none;
}

.page-contact .contact-frame::before {
  top: -1px;
  left: -1px;
  border-top: 2px solid var(--gold);
  border-left: 2px solid var(--gold);
}

.page-contact .contact-frame::after {
  right: -1px;
  bottom: -1px;
  border-right: 2px solid var(--gold);
  border-bottom: 2px solid var(--gold);
}

.page-contact .contact-title {
  margin: 16px 0 0;
  max-width: 22ch;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(27px, 6.4vw, 52px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-contact .contact-lede {
  margin: 18px 0 0;
  max-width: 38ch;
  color: var(--mist);
}

/* 三项联系方式 */
.page-contact .channels {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: clamp(26px, 4vw, 46px) 0 0;
  padding: 0;
  list-style: none;
  background: var(--steel);
  border: var(--c-line);
}

.page-contact .channel {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 22px 20px 24px;
  background: var(--ink-800);
  transition: background 240ms var(--ease), box-shadow 240ms var(--ease);
}

.page-contact .channel:hover,
.page-contact .channel:focus-within {
  background: var(--ink-700);
  box-shadow: inset 0 0 0 1px var(--gold);
}

.page-contact .channel__head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist-dim);
}

.page-contact .channel__value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(14px, 3.4vw, 18px);
  line-height: 1.5;
  color: var(--white);
  text-decoration: none;
  word-break: break-all;
  border-bottom: 1px dashed transparent;
  transition: color 200ms var(--ease), border-color 200ms var(--ease);
}

.page-contact .channel__value:hover,
.page-contact .channel__value:focus-visible {
  color: var(--gold-soft);
  border-bottom-color: var(--gold);
}

.page-contact .channel__value--addr {
  font-size: clamp(14px, 3vw, 16px);
  font-family: var(--font-sans);
  font-weight: 500;
  word-break: break-word;
}

.page-contact .channel__note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--mist);
}

/* 顶部横幅 */
.page-contact .contact-banner {
  margin-top: clamp(20px, 3vw, 34px);
}

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

/* 章节头 */
.page-contact .section-head {
  display: flex;
  align-items: flex-start;
  gap: clamp(14px, 2.4vw, 26px);
}

.page-contact .section-head__body {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.page-contact .section-title {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 900;
  letter-spacing: -0.02em;
  font-size: clamp(22px, 4.4vw, 34px);
  line-height: 1.22;
  color: var(--white);
}

/* 01 回复节奏 */
.page-contact .hours-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 48px);
  margin-top: clamp(24px, 3.4vw, 38px);
}

.page-contact .hours-track {
  position: relative;
  height: 56px;
  border: var(--c-line);
  background-color: var(--ink-800);
  background-image: repeating-linear-gradient(
    90deg,
    rgba(34, 52, 95, 0.95) 0 1px,
    transparent 1px 26px
  );
}

.page-contact .hours-fill {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gold) 0%, var(--gold-soft) 52%, var(--jade) 100%);
}

.page-contact .hours-ticks {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .hours-ticks li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
}

.page-contact .hours-ticks .num {
  font-size: 13px;
  color: var(--white);
}

.page-contact .hours-ticks__lab {
  color: var(--mist-dim);
}

.page-contact .hours-band__note {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px dashed var(--steel);
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .hours-copy {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.page-contact .hours-copy p {
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--mist);
}

.page-contact .hours-copy__tag {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* 02 咨询准备 */
.page-contact .prep-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 52px);
  margin-top: clamp(24px, 3.4vw, 38px);
}

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

.page-contact .prep-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px 20px;
  padding: 24px 0;
  border-bottom: var(--c-line);
}

.page-contact .prep-item__num {
  font-family: var(--font-mono);
  font-size: clamp(20px, 4vw, 28px);
  line-height: 1;
  color: var(--gold);
}

.page-contact .prep-item__title {
  margin: 0 0 9px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-contact .prep-item__text {
  margin: 0;
  max-width: 42ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

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

/* 03 问题分流 */
.page-contact .router-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: clamp(24px, 3.4vw, 38px);
}

.page-contact .router-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px 22px;
  border: var(--c-line);
  background: var(--ink-800);
  color: inherit;
  text-decoration: none;
  transition: border-color 240ms var(--ease), background 240ms var(--ease), transform 240ms var(--ease);
}

.page-contact .router-card:hover,
.page-contact .router-card:focus-visible {
  border-color: var(--gold);
  background: var(--ink-700);
  transform: translateY(-3px);
}

.page-contact .router-card__lab {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--gold);
}

.page-contact .router-card__title {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--white);
}

.page-contact .router-card__text {
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .router-card__go {
  margin-top: auto;
  padding-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist-dim);
  transition: color 200ms var(--ease);
}

.page-contact .router-card:hover .router-card__go,
.page-contact .router-card:focus-visible .router-card__go {
  color: var(--gold-soft);
}

/* 04 地域与备案 */
.page-contact .region-band {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 44px);
  padding: var(--c-pad);
  border: var(--c-line);
  border-top: 2px solid var(--jade);
  background: linear-gradient(180deg, rgba(14, 26, 60, 0.72) 0%, rgba(7, 14, 36, 0.28) 100%);
}

.page-contact .region-title {
  margin: 10px 0 0;
  max-width: 24ch;
}

.page-contact .region-copy {
  margin: 16px 0 0;
  max-width: 38ch;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--mist);
}

.page-contact .region-band__side {
  display: flex;
  flex-direction: column;
  gap: 22px;
  min-width: 0;
}

.page-contact .region-facts {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: var(--c-line);
}

.page-contact .region-facts li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--steel);
  font-size: 13px;
}

.page-contact .region-facts span:first-child {
  color: var(--mist-dim);
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.page-contact .region-facts span:last-child {
  font-family: var(--font-mono);
  color: var(--white);
  text-align: right;
  word-break: break-all;
}

.page-contact .region-ridge {
  display: block;
  width: 100%;
  height: auto;
  max-height: 120px;
}

.page-contact .ridge-line {
  stroke: var(--steel);
}

.page-contact .ridge-line--dim {
  stroke: rgba(34, 52, 95, 0.62);
}

.page-contact .ridge-dot {
  fill: var(--gold);
}

/* 平板与桌面 */
@media (min-width: 760px) {
  .page-contact .channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 960px) {
  .page-contact .hours-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .prep-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
  }

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

@media (min-width: 1120px) {
  .page-contact .router-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .router-card,
  .page-contact .channel,
  .page-contact .channel__value,
  .page-contact .router-card__go {
    transition: none;
  }

  .page-contact .router-card:hover,
  .page-contact .router-card:focus-visible {
    transform: none;
  }
}