.page-contact {
  --pc-pad: clamp(46px, 7vw, 96px);
  --pc-line: var(--line-ink);
  background: var(--fog);
  color: var(--ink);
  font-family: var(--font-sans);
}

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

.page-contact h2 {
  font-size: clamp(24px, 3.6vw, 36px);
  line-height: 1.15;
  letter-spacing: -0.01em;
  font-weight: 900;
  margin: 10px 0 0;
  color: var(--navy-900);
}

.page-contact .eyebrow {
  color: var(--mid);
}

/* ---------- 面包屑 ---------- */
.page-contact .crumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: 20px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: rgba(244, 247, 250, 0.6);
}

.page-contact .crumbs-link {
  color: var(--gold-300);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .crumbs-link:hover,
.page-contact .crumbs-link:focus-visible {
  color: var(--gold-500);
  border-bottom-color: var(--gold-500);
}

.page-contact .crumbs-current {
  color: rgba(244, 247, 250, 0.9);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  background:
    linear-gradient(rgba(244, 247, 250, 0.045) 1px, transparent 1px) 0 0 / 100% 48px,
    linear-gradient(90deg, rgba(244, 247, 250, 0.045) 1px, transparent 1px) 0 0 / 48px 100%,
    var(--navy-900);
  color: var(--fog);
  padding-bottom: clamp(38px, 6vw, 84px);
}

.page-contact .hero-grid {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
  padding-top: clamp(22px, 4vw, 52px);
}

.page-contact .hero-eyebrow,
.page-contact .contact-hero .eyebrow {
  color: var(--gold-300);
  margin: 0;
}

.page-contact .hero-title,
.page-contact .contact-hero h1 {
  font-size: clamp(32px, 6.4vw, 62px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  font-weight: 900;
  margin: 14px 0 0;
  color: var(--fog);
}

.page-contact .hero-lede {
  max-width: 46ch;
  margin: 18px 0 0;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.8;
  color: rgba(244, 247, 250, 0.78);
}

.page-contact .hero-status {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}

.page-contact .hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-contact .hero-visual {
  position: relative;
  margin: 0;
  border: 1px solid var(--line-light);
  background: var(--navy-700);
  overflow: hidden;
}

.page-contact .hero-visual img {
  display: block;
  width: 100%;
  max-height: 320px;
  object-fit: cover;
  object-position: center;
  opacity: 0.62;
  filter: saturate(0.65) contrast(1.06);
}

.page-contact .hero-visual::before {
  content: "";
  position: absolute;
  inset: 10px;
  border-top: 1px solid var(--line-gold);
  border-bottom: 1px solid var(--line-gold);
  pointer-events: none;
}

.page-contact .hero-visual figcaption {
  position: absolute;
  left: 16px;
  bottom: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.07em;
  color: var(--gold-300);
}

/* ---------- 渠道 + 流程 ---------- */
.page-contact .channels {
  background: var(--fog);
  padding: var(--pc-pad) 0;
}

.page-contact .ch-grid {
  display: grid;
  gap: clamp(32px, 5vw, 56px);
}

.page-contact .ch-lede {
  margin: 14px 0 0;
  max-width: 48ch;
  color: var(--mid);
  font-size: 15px;
  line-height: 1.8;
}

.page-contact .channel-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .channel-card {
  position: relative;
  padding: 16px 16px 18px 20px;
  background: #ffffff;
  border: 1px solid var(--pc-line);
  border-left: 3px solid var(--gold-500);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-contact .channel-card:hover {
  border-color: var(--line-ink-strong);
  border-left-color: var(--mint);
  background: #ffffff;
  transform: translateX(2px);
  box-shadow: 0 10px 24px rgba(6, 24, 39, 0.09);
}

.page-contact .channel-card:focus-within {
  border-left-color: var(--gold-500);
  box-shadow: 0 0 0 2px var(--gold-500);
}

.page-contact .channel-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.page-contact .channel-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--mid);
}

.page-contact .channel-value {
  display: block;
  margin-top: 8px;
  font-size: clamp(15px, 4.2vw, 20px);
  font-weight: 700;
  line-height: 1.4;
  color: var(--navy-700);
  overflow-wrap: anywhere;
}

.page-contact .channel-value.mono {
  font-family: var(--font-mono);
  letter-spacing: 0.01em;
}

.page-contact .channel-note {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mid);
}

.page-contact .channel-card .copy-chip {
  flex: none;
  font-size: 11px;
}

.page-contact .ch-hint {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mid);
}

.page-contact .ch-hint a {
  color: var(--navy-700);
  text-decoration: none;
  border-bottom: 1px solid var(--gold-500);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .ch-hint a:hover,
.page-contact .ch-hint a:focus-visible {
  color: var(--navy-900);
  border-bottom-color: var(--coral);
}

.page-contact .flow-figure {
  margin: 24px 0 0;
  border: 1px solid var(--pc-line);
  background: var(--navy-700);
  overflow: hidden;
}

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

.page-contact .flow {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  border-top: 1px solid var(--pc-line);
}

.page-contact .flow-item {
  border-bottom: 1px solid var(--pc-line);
}

.page-contact .flow-item summary {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 16px 6px;
  cursor: pointer;
  list-style: none;
  transition: background var(--dur) var(--ease);
}

.page-contact .flow-item summary::-webkit-details-marker {
  display: none;
}

.page-contact .flow-item summary:hover {
  background: rgba(11, 42, 74, 0.05);
}

.page-contact .flow-item summary:focus-visible {
  outline: 2px solid var(--gold-500);
  outline-offset: 2px;
}

.page-contact .flow-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gold-500);
}

.page-contact .flow-title {
  font-size: clamp(16px, 2.1vw, 19px);
  font-weight: 700;
  color: var(--navy-700);
}

.page-contact .flow-item summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--mid);
}

.page-contact .flow-item details[open] summary::after {
  content: "\2212";
  color: var(--gold-500);
}

.page-contact .flow-body {
  margin: 0 0 18px;
  padding-left: 34px;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mid);
}

/* ---------- 适用场景 ---------- */
.page-contact .scenarios {
  background: #ffffff;
  border-top: 1px solid var(--line-ink);
  border-bottom: 1px solid var(--line-ink);
  padding: var(--pc-pad) 0;
}

.page-contact .scen-head {
  display: grid;
  gap: 8px;
  max-width: 58ch;
}

.page-contact .scen-lede {
  margin: 4px 0 0;
  color: var(--mid);
  font-size: 15px;
  line-height: 1.8;
}

.page-contact .scenario-list {
  list-style: none;
  margin: clamp(26px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(20px, 3vw, 32px);
}

.page-contact .scenario {
  padding-top: 16px;
  border-top: 3px solid var(--navy-700);
}

.page-contact .scenario:nth-child(2) {
  border-top-color: var(--gold-500);
}

.page-contact .scenario:nth-child(3) {
  border-top-color: var(--mint);
}

.page-contact .scenario:nth-child(4) {
  border-top-color: var(--coral);
}

.page-contact .scenario-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mid);
}

.page-contact .scenario h3 {
  margin: 8px 0 0;
  font-size: clamp(18px, 2.4vw, 22px);
  font-weight: 800;
  color: var(--navy-900);
}

.page-contact .scenario p {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mid);
}

.page-contact .scenario-link {
  display: inline-block;
  margin-top: 12px;
  font-size: 14px;
  font-weight: 600;
  color: var(--navy-700);
  text-decoration: none;
  border-bottom: 1px solid var(--line-ink-strong);
  padding-bottom: 2px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .scenario-link:hover,
.page-contact .scenario-link:focus-visible {
  color: var(--navy-900);
  border-bottom-color: var(--gold-500);
}

/* ---------- 服务说明 ---------- */
.page-contact .notes {
  background: var(--navy-900);
  color: var(--fog);
  padding: var(--pc-pad) 0;
}

.page-contact .notes .eyebrow {
  color: var(--gold-300);
  margin: 0;
}

.page-contact .notes h2 {
  color: var(--fog);
}

.page-contact .notes-grid {
  display: grid;
  gap: 22px;
  margin-top: clamp(24px, 4vw, 42px);
}

.page-contact .note {
  border-top: 1px solid var(--line-light);
  padding-top: 16px;
}

.page-contact .note-title {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  font-weight: 600;
  color: var(--gold-300);
}

.page-contact .note p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(244, 247, 250, 0.78);
}

/* ---------- 备案与站点信息 ---------- */
.page-contact .site-facts {
  background: var(--navy-700);
  border-top: 1px solid var(--line-light);
  padding: 24px 0;
}

.page-contact .facts-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px 26px;
}

.page-contact .fact {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.page-contact .fact-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: rgba(244, 247, 250, 0.58);
}

.page-contact .fact-value {
  font-size: 13px;
  color: var(--fog);
  overflow-wrap: anywhere;
}

.page-contact .fact-value.mono {
  font-family: var(--font-mono);
}

.page-contact .facts-inner .copy-chip {
  font-size: 11px;
}

.page-contact .fact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.page-contact .fact-links a {
  font-size: 13px;
  color: var(--gold-300);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .fact-links a:hover,
.page-contact .fact-links a:focus-visible {
  color: var(--gold-500);
  border-bottom-color: var(--gold-500);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-contact .scenario-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(28px, 4vw, 56px);
    row-gap: clamp(24px, 3vw, 36px);
  }
}

@media (min-width: 900px) {
  .page-contact .hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
  }

  .page-contact .hero-visual img {
    min-height: 380px;
    max-height: none;
  }
}

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

@media (min-width: 820px) {
  .page-contact .notes-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
  }

  .page-contact .note {
    border-top: 0;
    border-left: 1px solid var(--line-light);
    padding: 0 28px;
  }

  .page-contact .note:first-child {
    border-left: 0;
    padding-left: 0;
  }

  .page-contact .note:last-child {
    padding-right: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .channel-card:hover,
  .page-contact .flow-item summary,
  .page-contact .crumbs-link,
  .page-contact .scenario-link,
  .page-contact .fact-links a {
    transition: none;
    transform: none;
  }
}