.page-contact {
  --pc-gutter: 20px;
  --pc-glow: 0 0 0 1px rgba(0, 229, 199, 0.35);
  background: var(--carbon-950);
  color: var(--paper);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

.page-contact .shell {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding-left: var(--pc-gutter);
  padding-right: var(--pc-gutter);
}

.page-contact h1,
.page-contact h2,
.page-contact h3 {
  font-family: var(--font-sans);
  font-weight: 700;
  line-height: 1.28;
  margin: 0;
}

.page-contact a {
  color: var(--cyan);
}

.page-contact a:focus-visible,
.page-contact button:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

.page-contact .eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--orange);
  margin: 0 0 12px;
}

.page-contact .mono {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: 26px 0 44px;
  background:
    radial-gradient(120% 90% at 85% 0%, rgba(255, 90, 31, 0.16), transparent 62%),
    linear-gradient(180deg, var(--carbon-950) 0%, var(--carbon-900) 100%);
  overflow: hidden;
}

.page-contact .contact-hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-contact .contact-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.26;
  filter: saturate(0.65) contrast(1.1);
}

.page-contact .contact-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, var(--carbon-950) 8%, rgba(7, 9, 10, 0.72) 52%, rgba(7, 9, 10, 0.94) 100%);
}

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

.page-contact .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--slate);
  margin-bottom: 22px;
}

.page-contact .breadcrumb__link {
  color: var(--paper-muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--fast) var(--ease), border-color var(--fast) var(--ease);
}

.page-contact .breadcrumb__link:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-contact .breadcrumb__now {
  color: var(--orange);
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: 24px;
}

.page-contact .contact-hero h1 {
  font-size: clamp(28px, 7.2vw, 50px);
  letter-spacing: -0.01em;
  max-width: 15em;
}

.page-contact .contact-hero .lead {
  margin: 16px 0 0;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--paper-muted);
  max-width: 46em;
}

.page-contact .hero-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin-top: 24px;
}

.page-contact .hero-metric {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-left: 12px;
  border-left: 2px solid var(--carbon-700);
}

.page-contact .hero-metric:first-child {
  border-left-color: var(--orange);
}

.page-contact .hero-metric__key {
  color: var(--slate);
}

.page-contact .hero-metric__val {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-contact .contact-hero__status {
  align-self: start;
  background: rgba(20, 24, 26, 0.86);
  border: 1px solid var(--carbon-700);
  border-radius: var(--radius-panel);
  padding: 20px 18px;
  backdrop-filter: blur(6px);
}

.page-contact .status-head {
  color: var(--cyan);
  margin: 0 0 12px;
}

.page-contact .status-line {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-size: 13.5px;
  color: var(--paper);
}

.page-contact .status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(0, 229, 199, 0.16);
  flex: none;
}

.page-contact .status-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--carbon-700);
}

.page-contact .status-grid__item dt {
  color: var(--slate);
  margin-bottom: 6px;
}

.page-contact .status-grid__item dd {
  margin: 0;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--lime);
}

.page-contact .status-note {
  margin: 16px 0 0;
  font-size: 12px;
  line-height: 1.65;
  color: var(--slate);
}

/* ---------- 章节标题 ---------- */
.page-contact .section-head {
  margin-bottom: 24px;
}

.page-contact .section-head h2 {
  font-size: clamp(22px, 4.6vw, 32px);
}

.page-contact .section-head__lead {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--paper-muted);
  max-width: 44em;
}

/* ---------- 渠道卡 ---------- */
.page-contact .channels {
  padding: 44px 0 40px;
  background: var(--carbon-900);
}

.page-contact .channel-stack {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .channel-card {
  position: relative;
  background: var(--carbon-800);
  border: 1px solid var(--carbon-700);
  border-radius: var(--radius-panel);
  padding: 24px 20px 20px;
  transition: transform var(--mid) var(--ease), border-color var(--mid) var(--ease), box-shadow var(--mid) var(--ease);
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 20px;
  width: 62px;
  height: 3px;
  border-radius: 0 0 3px 3px;
  background: linear-gradient(90deg, var(--orange), var(--cyan));
}

.page-contact .channel-card:hover {
  transform: translateY(-2px);
  border-color: var(--cyan);
  box-shadow: var(--pc-glow);
}

.page-contact .channel-card__code {
  color: var(--slate);
  margin: 0 0 8px;
}

.page-contact .channel-card__title {
  font-size: 19px;
}

.page-contact .channel-card__value {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--cyan);
  overflow-wrap: anywhere;
}

.page-contact .channel-card__fit {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--paper-muted);
}

.page-contact .channel-card__meta {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--carbon-700);
  color: var(--slate);
}

.page-contact .channels__tip {
  margin: 22px 0 0;
  padding: 14px 16px;
  border-left: 3px solid var(--orange);
  border-radius: 0 14px 14px 0;
  background: rgba(255, 90, 31, 0.09);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--paper-muted);
}

/* ---------- 分流矩阵 ---------- */
.page-contact .routing {
  padding: 44px 0 40px;
  background: var(--carbon-950);
}

.page-contact .table-shell {
  overflow-x: auto;
  border: 1px solid var(--carbon-700);
  border-radius: var(--radius-card);
  background: var(--carbon-800);
  -webkit-overflow-scrolling: touch;
}

.page-contact .route-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-contact .route-table__caption {
  caption-side: top;
  text-align: left;
  padding: 14px 16px 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--slate);
}

.page-contact .route-table th {
  position: sticky;
  top: 0;
  text-align: left;
  padding: 14px 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--paper-muted);
  background: var(--carbon-700);
  white-space: nowrap;
}

.page-contact .route-table td {
  padding: 15px 16px;
  border-top: 1px solid var(--carbon-700);
  line-height: 1.6;
  vertical-align: top;
  color: var(--paper);
}

.page-contact .route-table tbody tr {
  transition: background-color var(--fast) var(--ease);
}

.page-contact .route-table tbody tr:hover {
  background: rgba(0, 229, 199, 0.09);
}

.page-contact .route-table__chan {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--cyan);
  overflow-wrap: anywhere;
}

.page-contact .route-table__time {
  color: var(--paper-muted);
  font-size: 13px;
  white-space: nowrap;
}

.page-contact .routing__note {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.72;
  color: var(--slate);
}

.page-contact .routing__note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 199, 0.4);
}

.page-contact .routing__note a:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 处理流程 ---------- */
.page-contact .process {
  padding: 44px 0;
  background: linear-gradient(180deg, var(--carbon-900), var(--carbon-950));
}

.page-contact .process__grid {
  display: grid;
  gap: 26px;
}

.page-contact .process__rail {
  border-left: 1px solid var(--carbon-700);
  padding-left: 14px;
}

.page-contact .process__rail-index {
  color: var(--orange);
  margin: 0 0 10px;
}

.page-contact .process__rail-note {
  margin: 0 0 14px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--slate);
}

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

.page-contact .rail-list__item {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--paper-muted);
  padding: 5px 11px;
  border: 1px solid var(--carbon-700);
  border-radius: var(--radius-pill);
}

.page-contact .process__body h2 {
  font-size: clamp(22px, 4.6vw, 32px);
}

.page-contact .process__lead {
  margin: 12px 0 20px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--paper-muted);
}

.page-contact .step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .step {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  grid-template-areas:
    "num title"
    "num text";
  gap: 2px 14px;
  background: var(--carbon-800);
  border: 1px solid var(--carbon-700);
  border-radius: var(--radius-card);
  padding: 16px 18px;
  transition: border-color var(--mid) var(--ease), transform var(--mid) var(--ease);
}

.page-contact .step:hover {
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-contact .step__num {
  grid-area: num;
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--orange);
}

.page-contact .step__title {
  grid-area: title;
  font-size: 16px;
}

.page-contact .step__text {
  grid-area: text;
  margin: 4px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--paper-muted);
}

.page-contact .process__figure {
  margin: 22px 0 0;
  border: 1px solid var(--carbon-700);
  border-radius: var(--radius-panel);
  overflow: hidden;
  background: var(--carbon-800);
}

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

.page-contact .process__caption {
  padding: 12px 16px;
  border-top: 1px solid var(--carbon-700);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  line-height: 1.6;
  color: var(--slate);
}

/* ---------- 商务合作 ---------- */
.page-contact .partner {
  padding: 44px 0;
  background: var(--carbon-900);
}

.page-contact .partner__panel {
  position: relative;
  overflow: hidden;
  background: var(--carbon-800);
  border: 1px solid var(--carbon-700);
  border-radius: var(--radius-panel);
  padding: 24px 20px 20px;
}

.page-contact .partner__panel::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 5px;
  background: linear-gradient(180deg, var(--orange), var(--cyan));
}

.page-contact .partner__panel h2 {
  font-size: clamp(21px, 4.4vw, 30px);
}

.page-contact .partner__lead {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--paper-muted);
}

.page-contact .partner-fields {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.page-contact .partner-field {
  background: var(--carbon-900);
  border: 1px solid var(--carbon-700);
  border-radius: 14px;
  padding: 15px 16px;
  transition: border-color var(--mid) var(--ease);
}

.page-contact .partner-field:hover {
  border-color: var(--cyan);
}

.page-contact .partner-field__label {
  display: block;
  color: var(--cyan);
  margin-bottom: 8px;
}

.page-contact .partner-field__text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--paper);
}

.page-contact .partner__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px dashed var(--carbon-700);
}

.page-contact .partner__mail {
  margin: 0;
  font-size: 14px;
  color: var(--paper-muted);
  overflow-wrap: anywhere;
}

.page-contact .partner__mail strong {
  color: var(--lime);
  font-family: var(--font-mono);
  font-size: 13.5px;
  font-weight: 500;
}

.page-contact .partner__meta {
  margin: 0;
  color: var(--slate);
}

/* ---------- 地址与备案 ---------- */
.page-contact .record {
  padding: 40px 0 44px;
  background: var(--carbon-950);
}

.page-contact .record__title {
  font-size: 18px;
  color: var(--paper-muted);
  margin-bottom: 14px;
  letter-spacing: 0.01em;
}

.page-contact .record__sheet {
  background: var(--paper);
  color: var(--carbon-950);
  border-radius: var(--radius-panel);
  padding: 22px 20px;
  display: grid;
  gap: 20px;
}

.page-contact .record__k {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--carbon-700);
}

.page-contact .record__v {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--carbon-950);
}

.page-contact .record__v--mail {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  overflow-wrap: anywhere;
}

.page-contact .record__note {
  margin: 8px 0 0;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--carbon-700);
}

/* ---------- 下一步 ---------- */
.page-contact .next-steps {
  padding: 0 0 56px;
  background: var(--carbon-950);
}

.page-contact .next-steps__title {
  font-size: 15px;
  color: var(--slate);
  font-family: var(--font-mono);
  font-weight: 500;
  letter-spacing: 0.1em;
  margin-bottom: 14px;
}

.page-contact .next-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .next-link {
  display: inline-block;
  padding: 9px 16px;
  border: 1px solid var(--carbon-700);
  border-radius: var(--radius-pill);
  font-size: 13.5px;
  color: var(--paper-muted);
  text-decoration: none;
  transition: color var(--fast) var(--ease), border-color var(--fast) var(--ease), background-color var(--fast) var(--ease);
}

.page-contact .next-link:hover {
  color: var(--carbon-950);
  background: var(--cyan);
  border-color: var(--cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact {
    --pc-gutter: 32px;
  }

  .page-contact .contact-hero {
    padding: 34px 0 56px;
  }

  .page-contact .channel-stack {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }

  .page-contact .channel-stack > li:nth-child(2) {
    transform: translateY(14px);
  }

  .page-contact .channel-stack > li:nth-child(3) {
    transform: translateY(-6px);
  }

  .page-contact .channel-stack > li:nth-child(4) {
    transform: translateY(8px);
  }

  .page-contact .channel-stack > li:nth-child(2):hover,
  .page-contact .channel-stack > li:nth-child(3):hover,
  .page-contact .channel-stack > li:nth-child(4):hover {
    transform: translateY(-2px);
  }

  .page-contact .partner-fields {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .record__sheet {
    grid-template-columns: 1.5fr 1fr 1.1fr;
    gap: 24px;
    padding: 26px 24px;
  }

  .page-contact .channels,
  .page-contact .routing,
  .page-contact .process,
  .page-contact .partner {
    padding-top: 56px;
    padding-bottom: 52px;
  }
}

@media (min-width: 1000px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.75fr);
    align-items: end;
    gap: 36px;
  }

  .page-contact .contact-hero__status {
    margin-bottom: 6px;
  }

  .page-contact .process__grid {
    grid-template-columns: 210px minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-contact .process__rail {
    position: sticky;
    top: 96px;
  }

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

  .page-contact .process__figure {
    margin-top: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .step,
  .page-contact .partner-field,
  .page-contact .next-link,
  .page-contact .breadcrumb__link {
    transition: none;
  }

  .page-contact .channel-card:hover,
  .page-contact .step:hover,
  .page-contact .channel-stack > li:nth-child(2):hover,
  .page-contact .channel-stack > li:nth-child(3):hover,
  .page-contact .channel-stack > li:nth-child(4):hover {
    transform: none;
  }
}