.page-contact {
  --pc-accent: var(--summer);
  --pc-radius: 14px;
  display: block;
}

.page-contact img {
  max-width: 100%;
  height: auto;
}

/* ============ 首屏 ============ */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--ink-deep);
  color: var(--paper);
  min-height: clamp(430px, 64vw, 640px);
  display: flex;
  align-items: flex-end;
}

.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: 0.36;
  filter: saturate(0.6) contrast(1.06);
}

.page-contact .contact-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(198deg, rgba(11, 31, 23, 0.35) 0%, rgba(7, 21, 16, 0.9) 55%, var(--ink-deep) 100%),
    repeating-linear-gradient(90deg, rgba(30, 58, 44, 0.5) 0 1px, transparent 1px 72px);
}

.page-contact .contact-hero__body {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 1.15rem;
  padding-block: clamp(3rem, 9vw, 5.5rem) clamp(2.25rem, 5vw, 3.25rem);
}

.page-contact .breadcrumbs {
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-contact .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .breadcrumbs li + li::before {
  content: "/";
  margin-right: 0.4rem;
  opacity: 0.55;
}

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

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

.page-contact .contact-hero h1 {
  margin: 0;
  max-width: 22em;
  font-size: clamp(1.85rem, 6vw, 3.25rem);
  line-height: 1.16;
  font-weight: 900;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-contact .contact-hero__lead {
  margin: 0;
  max-width: 42em;
  font-size: clamp(0.98rem, 2.3vw, 1.1rem);
  line-height: 1.85;
  color: rgba(247, 244, 236, 0.82);
}

.page-contact .contact-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.75rem;
  margin: 0.5rem 0 0;
  padding: 1.05rem 1.25rem;
  list-style: none;
  border: 1px solid rgba(247, 244, 236, 0.14);
  border-left: 3px solid var(--flare);
  background: rgba(247, 244, 236, 0.06);
  backdrop-filter: blur(8px);
}

.page-contact .contact-hero__fact {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}

.page-contact .contact-hero__fact strong {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--flare);
}

.page-contact .contact-hero__fact span {
  font-size: 0.82rem;
  color: var(--muted);
}

/* ============ 通用章节头 ============ */
.page-contact .pc-head {
  margin-bottom: 1.6rem;
}

.page-contact .pc-kicker {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  margin: 0 0 0.55rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--pc-accent);
}

.page-contact .pc-num {
  font-family: var(--font-mono);
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
}

.page-contact .pc-title {
  margin: 0;
  max-width: 26em;
  font-size: clamp(1.3rem, 4.1vw, 2rem);
  line-height: 1.28;
  font-weight: 800;
  letter-spacing: 0.01em;
}

/* ============ 01 来意分流 ============ */
.page-contact .contact-router {
  --pc-accent: var(--spring);
  position: relative;
  padding-block: clamp(2.75rem, 8vw, 5rem);
  background: var(--ink);
  color: var(--paper);
  overflow: hidden;
}

.page-contact .contact-router::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(30, 58, 44, 0.55) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 58, 44, 0.55) 1px, transparent 1px);
  background-size: 68px 68px;
  pointer-events: none;
}

.page-contact .contact-router > .container {
  position: relative;
  z-index: 1;
}

.page-contact .contact-router__band {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.7rem;
}

.page-contact .contact-router__seg {
  --seg-accent: var(--spring);
  position: relative;
  display: grid;
  gap: 0.3rem;
  padding: 1.1rem 1.2rem 1.2rem 1.4rem;
  text-align: left;
  font: inherit;
  color: var(--paper);
  appearance: none;
  border: 1px solid rgba(247, 244, 236, 0.16);
  border-radius: 0;
  background: rgba(247, 244, 236, 0.04);
  cursor: pointer;
  transition: background var(--mid) var(--ease), border-color var(--mid) var(--ease), opacity var(--mid) var(--ease);
}

.page-contact .contact-router__seg::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--seg-accent);
  transition: width var(--mid) var(--ease);
}

.page-contact .contact-router__seg:hover,
.page-contact .contact-router__seg:focus-visible {
  background: rgba(247, 244, 236, 0.08);
  border-color: rgba(247, 244, 236, 0.3);
}

.page-contact .contact-router__seg:focus-visible {
  outline: 2px solid var(--flare);
  outline-offset: 2px;
}

.page-contact .contact-router__seg.is-active,
.page-contact .contact-router__seg[aria-selected="true"] {
  background: rgba(247, 244, 236, 0.1);
  border-color: var(--seg-accent);
}

.page-contact .contact-router__seg.is-active::before,
.page-contact .contact-router__seg[aria-selected="true"]::before {
  width: 7px;
}

.page-contact .contact-router__band:has(.contact-router__seg.is-active) .contact-router__seg:not(.is-active) {
  opacity: 0.58;
}

.page-contact .contact-router__seg--spring { --seg-accent: var(--spring); }
.page-contact .contact-router__seg--summer { --seg-accent: var(--summer); }
.page-contact .contact-router__seg--winter { --seg-accent: var(--winter); }

.page-contact .contact-router__seg-num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--seg-accent);
}

.page-contact .contact-router__seg-name {
  display: block;
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: 0.01em;
}

.page-contact .contact-router__seg-note {
  display: block;
  font-size: 0.8rem;
  line-height: 1.6;
  color: var(--muted);
}

.page-contact .tabs {
  display: block;
}

.page-contact .tab-panel {
  display: none;
}

.page-contact .tab-panel.is-active {
  display: block;
}

.page-contact .tab-panel[hidden] {
  display: none;
}

.page-contact .contact-router__panel {
  margin-top: 1.4rem;
  padding: clamp(1.25rem, 4vw, 2rem);
  border: 1px solid rgba(247, 244, 236, 0.14);
  border-left: 3px solid var(--seg-accent, var(--spring));
  background: var(--glass);
  backdrop-filter: blur(10px);
}

.page-contact #panel-fix { --seg-accent: var(--spring); }
.page-contact #panel-biz { --seg-accent: var(--summer); }
.page-contact #panel-use { --seg-accent: var(--winter); }

.page-contact .contact-router__panel-title {
  margin: 0 0 0.75rem;
  font-size: clamp(1.05rem, 3vw, 1.3rem);
  font-weight: 800;
  line-height: 1.4;
  color: var(--paper);
}

.page-contact .contact-router__panel-lead {
  margin: 0 0 1.1rem;
  max-width: 46em;
  font-size: 0.94rem;
  line-height: 1.85;
  color: rgba(247, 244, 236, 0.8);
}

.page-contact .contact-router__list {
  display: grid;
  gap: 0.5rem;
  margin: 0 0 1.35rem;
  padding: 0;
  list-style: none;
}

.page-contact .contact-router__list li {
  position: relative;
  padding-left: 1.35rem;
  font-size: 0.9rem;
  line-height: 1.75;
  color: rgba(247, 244, 236, 0.86);
}

.page-contact .contact-router__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 9px;
  height: 2px;
  background: var(--seg-accent, var(--spring));
}

.page-contact .contact-router__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* ============ 02 联系渠道 ============ */
.page-contact .contact-channels {
  --pc-accent: var(--summer);
  padding-block: clamp(2.75rem, 8vw, 5rem);
  background: var(--paper);
  color: var(--text-dark);
}

.page-contact .contact-channels__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.page-contact .contact-card {
  --card-accent: var(--summer);
  position: relative;
  overflow: hidden;
  padding: 1.7rem 1.4rem 1.5rem;
  background: #ffffff;
  border: 1px solid rgba(42, 31, 23, 0.1);
  transition: transform var(--mid) var(--ease), box-shadow var(--mid) var(--ease), border-color var(--mid) var(--ease);
}

.page-contact .contact-card--service { --card-accent: var(--summer); }
.page-contact .contact-card--phone { --card-accent: var(--winter); }
.page-contact .contact-card--biz { --card-accent: var(--spring); }

.page-contact .contact-card:hover,
.page-contact .contact-card:focus-within {
  transform: translateY(-3px);
  border-color: var(--card-accent);
  box-shadow: 0 14px 30px -20px rgba(11, 31, 23, 0.55);
}

.page-contact .contact-card__corner {
  position: absolute;
  top: 0;
  left: 0;
  width: 48px;
  height: 4px;
  background: var(--card-accent);
  transition: width var(--mid) var(--ease);
}

.page-contact .contact-card:hover .contact-card__corner,
.page-contact .contact-card:focus-within .contact-card__corner {
  width: 100%;
}

.page-contact .contact-card__label {
  margin: 0 0 0.6rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--card-accent);
}

.page-contact .contact-card__value {
  margin: 0 0 1.15rem;
  font-family: var(--font-mono);
  font-size: clamp(0.98rem, 2.6vw, 1.12rem);
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--text-dark);
  word-break: break-all;
}

.page-contact .contact-card__meta {
  display: grid;
  gap: 0.7rem;
  margin: 0;
}

.page-contact .contact-card__meta > div {
  display: grid;
  gap: 0.15rem;
  padding-top: 0.7rem;
  border-top: 1px solid rgba(42, 31, 23, 0.1);
}

.page-contact .contact-card__meta dt {
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  color: rgba(42, 31, 23, 0.52);
}

.page-contact .contact-card__meta dd {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.7;
  color: rgba(42, 31, 23, 0.86);
}

/* ============ 03 数据纠错 ============ */
.page-contact .contact-fix {
  --pc-accent: var(--autumn);
  padding-block: clamp(2.75rem, 8vw, 5rem);
  background: var(--ink-deep);
  color: var(--paper);
}

.page-contact .contact-fix__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

.page-contact .contact-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: pc-step;
}

.page-contact .contact-steps li {
  position: relative;
  padding: 1.05rem 0 1.05rem 3.1rem;
  border-top: 1px solid rgba(247, 244, 236, 0.12);
}

.page-contact .contact-steps li:last-child {
  border-bottom: 1px solid rgba(247, 244, 236, 0.12);
}

.page-contact .contact-steps li::before {
  counter-increment: pc-step;
  content: counter(pc-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1.05rem;
  font-family: var(--font-mono);
  font-size: 0.92rem;
  letter-spacing: 0.06em;
  color: var(--pc-accent);
}

.page-contact .contact-steps__title {
  margin: 0 0 0.35rem;
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-contact .contact-steps__desc {
  margin: 0;
  max-width: 40em;
  font-size: 0.88rem;
  line-height: 1.8;
  color: rgba(247, 244, 236, 0.72);
}

.page-contact .contact-fix__note {
  align-self: start;
  padding: 1.4rem 1.35rem;
  border: 1px solid rgba(247, 244, 236, 0.16);
  border-left: 3px solid var(--pc-accent);
  background: var(--glass);
  backdrop-filter: blur(10px);
}

.page-contact .contact-fix__note-title {
  margin: 0 0 0.65rem;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--pc-accent);
}

.page-contact .contact-fix__note p {
  margin: 0 0 0.85rem;
  font-size: 0.89rem;
  line-height: 1.85;
  color: rgba(247, 244, 236, 0.82);
}

.page-contact .contact-fix__note-meta {
  margin: 0;
  padding-top: 0.85rem;
  border-top: 1px solid rgba(247, 244, 236, 0.14);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--flare);
  word-break: break-all;
}

/* ============ 04 商务合作 ============ */
.page-contact .contact-partner {
  --pc-accent: var(--winter);
  padding-block: clamp(2.75rem, 8vw, 5rem);
  background: var(--paper);
  color: var(--text-dark);
}

.page-contact .contact-partner__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  padding-bottom: 0.5rem;
}

.page-contact .partner-item {
  padding: 1.5rem 1.35rem 1.6rem;
  background: #ffffff;
  border: 1px solid rgba(42, 31, 23, 0.1);
  border-top: 3px solid var(--pc-accent);
  transition: border-color var(--mid) var(--ease), box-shadow var(--mid) var(--ease);
}

.page-contact .partner-item:hover {
  box-shadow: 0 16px 32px -24px rgba(11, 31, 23, 0.6);
}

.page-contact .partner-item__tag {
  display: inline-block;
  margin-bottom: 0.8rem;
  padding: 0.24rem 0.6rem;
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--ink-deep);
  background: var(--pc-accent);
}

.page-contact .partner-item h3 {
  margin: 0 0 0.7rem;
  font-size: 1.04rem;
  font-weight: 800;
  line-height: 1.45;
  color: var(--text-dark);
}

.page-contact .partner-item p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.85;
  color: rgba(42, 31, 23, 0.76);
}

.page-contact .contact-partner__foot {
  margin: 1.75rem 0 0;
  padding: 1rem 0 1rem 1.15rem;
  border-left: 3px solid var(--pc-accent);
  font-size: 0.9rem;
  line-height: 1.8;
  color: rgba(42, 31, 23, 0.82);
  word-break: break-word;
}

/* ============ 05 办公地址 ============ */
.page-contact .contact-office {
  --pc-accent: var(--spring);
  padding-block: clamp(2.75rem, 8vw, 5rem);
  background: var(--ink);
  color: var(--paper);
}

.page-contact .contact-office__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

.page-contact .contact-office__addr {
  margin: 0 0 1.1rem;
  padding: 0.9rem 0 0.9rem 1.15rem;
  border-left: 3px solid var(--pc-accent);
  font-size: clamp(1rem, 2.6vw, 1.25rem);
  font-weight: 700;
  line-height: 1.65;
  color: var(--paper);
}

.page-contact .contact-office__desc {
  margin: 0 0 1.2rem;
  max-width: 40em;
  font-size: 0.9rem;
  line-height: 1.85;
  color: rgba(247, 244, 236, 0.76);
}

.page-contact .contact-office__list {
  display: grid;
  gap: 0.55rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-office__list li {
  position: relative;
  padding-left: 1.35rem;
  font-size: 0.88rem;
  line-height: 1.8;
  color: rgba(247, 244, 236, 0.82);
}

.page-contact .contact-office__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 9px;
  height: 2px;
  background: var(--pc-accent);
}

.page-contact .contact-office__figure {
  margin: 0;
}

.page-contact .contact-office__figure .media-frame__caption {
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--muted);
}

/* ============ 06 回复时效 ============ */
.page-contact .contact-sla {
  --pc-accent: var(--summer);
  padding-block: clamp(2.75rem, 8vw, 5rem);
  background: var(--paper);
  color: var(--text-dark);
}

.page-contact .contact-sla__list {
  display: grid;
  gap: 0.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-sla__item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.2rem;
  padding: 0.95rem 1.1rem;
  background: #ffffff;
  border: 1px solid rgba(42, 31, 23, 0.1);
  border-left: 3px solid var(--pc-accent);
}

.page-contact .contact-sla__k {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: rgba(42, 31, 23, 0.62);
}

.page-contact .contact-sla__v {
  font-size: 0.9rem;
  line-height: 1.7;
  color: rgba(42, 31, 23, 0.9);
}

.page-contact .contact-sla__foot {
  margin: 1.5rem 0 0;
  font-size: 0.88rem;
  line-height: 1.85;
  color: rgba(42, 31, 23, 0.72);
}

.page-contact .contact-sla__foot a {
  color: var(--winter);
  text-decoration: none;
  border-bottom: 1px solid rgba(31, 111, 235, 0.35);
  transition: color var(--fast) var(--ease), border-color var(--fast) var(--ease);
}

.page-contact .contact-sla__foot a:hover,
.page-contact .contact-sla__foot a:focus-visible {
  color: var(--summer);
  border-bottom-color: var(--summer);
}

/* ============ 按钮微调 ============ */
.page-contact .btn {
  transition: background var(--mid) var(--ease), color var(--mid) var(--ease), border-color var(--mid) var(--ease);
}

.page-contact .btn:focus-visible {
  outline: 2px solid var(--flare);
  outline-offset: 2px;
}

/* ============ 响应式 ============ */
@media (min-width: 620px) {
  .page-contact .contact-channels__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-contact .contact-sla__item {
    grid-template-columns: 9.5rem 1fr;
    align-items: baseline;
    gap: 1rem;
  }
}

@media (min-width: 760px) {
  .page-contact .contact-router__band {
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
  }

  .page-contact .contact-router__seg + .contact-router__seg {
    border-left-color: transparent;
  }

  .page-contact .contact-router__seg:hover,
  .page-contact .contact-router__seg:focus-visible,
  .page-contact .contact-router__seg.is-active,
  .page-contact .contact-router__seg[aria-selected="true"] {
    border-left-color: var(--seg-accent);
  }
}

@media (min-width: 900px) {
  .page-contact .contact-channels__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
  }

  .page-contact .contact-fix__layout {
    grid-template-columns: 1.55fr 1fr;
    gap: 2.75rem;
    align-items: start;
  }

  .page-contact .contact-partner__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    padding-bottom: 4.5rem;
  }

  .page-contact .contact-partner__grid > *:nth-child(2) {
    transform: translateY(28px);
  }

  .page-contact .contact-partner__grid > *:nth-child(3) {
    transform: translateY(56px);
  }

  .page-contact .contact-office__layout {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 3rem;
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-card,
  .page-contact .contact-card__corner,
  .page-contact .contact-router__seg,
  .page-contact .contact-router__seg::before {
    transition: none;
  }

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