.page-contact {
  --contact-frame-line: rgba(226, 216, 198, 0.3);
  --contact-soft-line: rgba(226, 216, 198, 0.16);
  --contact-paper-line: rgba(16, 27, 36, 0.16);
  --contact-paper-soft: rgba(16, 27, 36, 0.08);
  background: var(--ink-900);
}

/* ---------- 首屏框景 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-h) + 24px) 0 clamp(40px, 6vw, 76px);
  background-image: radial-gradient(120% 90% at 88% 0%, rgba(255, 91, 30, 0.14) 0%, rgba(255, 91, 30, 0) 58%);
}

.page-contact .hero-frame {
  position: relative;
  margin-top: clamp(18px, 3vw, 30px);
  padding: clamp(18px, 3vw, 36px);
  border: 1px solid var(--contact-frame-line);
}

.page-contact .hero-frame::before,
.page-contact .hero-frame::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid var(--orange);
}

.page-contact .hero-frame::before {
  top: -1px;
  left: -1px;
  border-right: 0;
  border-bottom: 0;
}

.page-contact .hero-frame::after {
  right: -1px;
  bottom: -1px;
  border-left: 0;
  border-top: 0;
}

.page-contact .hero-intro h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(32px, 7.2vw, 62px);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-contact .hero-lede {
  margin: 16px 0 0;
  max-width: 54ch;
  color: rgba(244, 238, 227, 0.78);
  font-size: 16px;
  line-height: 1.75;
}

/* ---------- 三张不等宽渠道卡 ---------- */
.page-contact .channel-deck {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: clamp(22px, 4vw, 34px);
}

.page-contact .channel-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
  padding: 18px 18px 20px;
  background: rgba(12, 39, 64, 0.86);
  border: 1px solid var(--contact-soft-line);
  border-top: 2px solid var(--orange);
  transition: border-color 180ms var(--ease), background-color 180ms var(--ease);
}

.page-contact .channel-card:hover {
  background: rgba(20, 58, 92, 0.9);
  border-color: var(--line-dark-strong);
}

.page-contact .channel-card--phone {
  border-top-color: var(--orange-soft);
}

.page-contact .channel-card--feedback {
  border-top-color: var(--teal);
}

.page-contact .channel-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  color: var(--orange-soft);
  border: 1px solid var(--contact-soft-line);
}

.page-contact .channel-card--feedback .channel-icon {
  color: var(--teal);
}

.page-contact .channel-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fog-dark);
}

.page-contact .channel-value {
  margin: 0;
  font-size: clamp(15px, 2.6vw, 19px);
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .channel-card--feedback .channel-value {
  font-size: clamp(20px, 3.4vw, 26px);
  color: var(--teal);
}

.page-contact .channel-desc {
  margin: 0;
  color: rgba(244, 238, 227, 0.72);
  font-size: 14px;
  line-height: 1.7;
}

.page-contact .channel-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: auto;
  padding-top: 6px;
}

.page-contact .channel-link {
  margin-top: auto;
  align-self: flex-start;
  padding-bottom: 3px;
  color: var(--teal);
  font-size: 14px;
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 240, 196, 0.45);
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-contact .channel-link:hover,
.page-contact .channel-link:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--orange);
}

/* ---------- 问题分流 ---------- */
.page-contact .contact-triage .section-head {
  max-width: 62ch;
}

.page-contact .triage-list {
  margin-top: clamp(20px, 3.5vw, 32px);
  border-bottom: 1px solid var(--contact-paper-line);
}

.page-contact .triage-row {
  border-top: 1px solid var(--contact-paper-line);
}

.page-contact .triage-row[open] {
  background: rgba(255, 91, 30, 0.05);
}

.page-contact .triage-row summary {
  position: relative;
  display: block;
  padding: 16px 36px 16px 40px;
  cursor: pointer;
  list-style: none;
  transition: background-color 160ms var(--ease);
}

.page-contact .triage-row summary::-webkit-details-marker {
  display: none;
}

.page-contact .triage-row summary:hover {
  background: var(--contact-paper-soft);
}

.page-contact .triage-row summary:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: -2px;
}

.page-contact .triage-idx {
  position: absolute;
  top: 17px;
  left: 2px;
  font-size: 12px;
  color: var(--orange);
}

.page-contact .triage-type {
  display: block;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--ink-text);
}

.page-contact .triage-route {
  display: block;
  margin-top: 7px;
}

.page-contact .route-badge {
  display: inline-block;
  padding: 3px 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--orange);
  border: 1px solid rgba(255, 91, 30, 0.45);
  background: rgba(255, 91, 30, 0.07);
}

.page-contact .triage-toggle {
  position: absolute;
  top: 50%;
  right: 8px;
  width: 16px;
  height: 16px;
  margin-top: -8px;
}

.page-contact .triage-toggle::before,
.page-contact .triage-toggle::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  width: 16px;
  height: 1px;
  background: var(--ink-text);
  transform: translateY(-50%);
}

.page-contact .triage-toggle::after {
  transform: translateY(-50%) rotate(90deg);
  transition: transform 180ms var(--ease);
}

.page-contact .triage-row[open] .triage-toggle::after {
  transform: translateY(-50%) rotate(0deg);
}

.page-contact .triage-body {
  padding: 0 18px 20px 40px;
}

.page-contact .triage-body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(16, 27, 36, 0.78);
}

.page-contact .triage-points {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-contact .triage-points li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-text);
}

.page-contact .triage-points li::before {
  content: "";
  position: absolute;
  top: 0.72em;
  left: 0;
  width: 8px;
  height: 1px;
  background: var(--orange);
}

/* ---------- 回复节奏 ---------- */
.page-contact .contact-rhythm {
  padding: clamp(40px, 6vw, 76px) 0;
}

.page-contact .rhythm-list {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
}

.page-contact .rhythm-list li {
  display: grid;
  gap: 4px;
  padding: 15px 0;
  border-top: 1px solid var(--contact-soft-line);
}

.page-contact .rhythm-num {
  font-size: 20px;
  line-height: 1.3;
  color: var(--orange);
}

.page-contact .rhythm-list li:first-child .rhythm-num {
  color: var(--teal);
}

.page-contact .rhythm-text {
  font-size: 15px;
  line-height: 1.75;
  color: rgba(244, 238, 227, 0.76);
}

.page-contact .rhythm-note {
  margin: 18px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--orange);
  font-size: 14px;
  line-height: 1.75;
  color: var(--fog-dark);
}

.page-contact .rhythm-figure {
  margin: 26px 0 0;
}

.page-contact .contact-rhythm .media-caption {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--fog-dark);
}

/* ---------- 联络地址 ---------- */
.page-contact .contact-address {
  padding: clamp(40px, 6vw, 76px) 0;
}

.page-contact .address-frame {
  position: relative;
  padding: clamp(20px, 3.4vw, 36px);
  border: 1px solid var(--contact-paper-line);
  background: rgba(255, 255, 255, 0.28);
}

.page-contact .address-frame::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 7px;
  background-image: repeating-linear-gradient(90deg, rgba(16, 27, 36, 0.42) 0 1px, transparent 1px 13px);
  opacity: 0.55;
}

.page-contact .address-body {
  display: grid;
  gap: 22px;
}

.page-contact .address-line {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 3.4vw, 28px);
  font-weight: 800;
  line-height: 1.4;
  color: var(--ink-text);
}

.page-contact .address-note {
  margin: 14px 0 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(16, 27, 36, 0.74);
}

.page-contact .address-meta {
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  align-self: start;
  border-top: 1px solid var(--contact-paper-line);
}

.page-contact .address-meta-row {
  display: grid;
  gap: 2px;
  padding: 11px 0;
  border-bottom: 1px solid var(--contact-paper-line);
}

.page-contact .address-meta dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--fog);
}

.page-contact .address-meta dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink-text);
  overflow-wrap: anywhere;
}

.page-contact .address-meta a {
  color: var(--ink-text);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 91, 30, 0.55);
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-contact .address-meta a:hover,
.page-contact .address-meta a:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.page-contact .address-figure {
  margin: 26px 0 0;
}

.page-contact .contact-address .media-caption {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--fog);
}

/* ---------- 合作与媒体 ---------- */
.page-contact .contact-partner {
  padding: clamp(40px, 6vw, 76px) 0 clamp(46px, 6vw, 84px);
}

.page-contact .contact-partner .section-head {
  max-width: 60ch;
}

.page-contact .partner-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: clamp(20px, 3.5vw, 32px);
}

.page-contact .partner-card {
  padding: 20px 18px 22px;
  border: 1px solid var(--contact-soft-line);
  background: rgba(6, 19, 31, 0.42);
  transition: border-color 180ms var(--ease), background-color 180ms var(--ease);
}

.page-contact .partner-card:hover {
  border-color: var(--line-dark-strong);
  background: rgba(6, 19, 31, 0.66);
}

.page-contact .partner-idx {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-contact .partner-title {
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--paper);
}

.page-contact .partner-card p:not(.partner-idx) {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: rgba(244, 238, 227, 0.72);
}

.page-contact .partner-foot {
  margin: 24px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--contact-soft-line);
  font-size: 14px;
  line-height: 1.8;
  color: rgba(244, 238, 227, 0.7);
}

.page-contact .partner-foot a {
  margin: 0 3px;
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 91, 30, 0.6);
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-contact .partner-foot a:hover,
.page-contact .partner-foot a:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .rhythm-list li {
    grid-template-columns: 148px minmax(0, 1fr);
    align-items: baseline;
    gap: 0 18px;
  }

  .page-contact .address-meta-row {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 0 16px;
    align-items: baseline;
  }

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

@media (min-width: 900px) {
  .page-contact .channel-deck {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1.05fr) minmax(0, 0.66fr);
    align-items: stretch;
  }

  .page-contact .triage-row summary {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 18px 40px 18px 44px;
  }

  .page-contact .triage-idx {
    top: 50%;
    left: 4px;
    transform: translateY(-50%);
  }

  .page-contact .triage-type {
    flex: 0 1 40%;
    font-size: 20px;
  }

  .page-contact .triage-route {
    flex: 1 1 auto;
    margin-top: 0;
  }

  .page-contact .triage-body {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 8px 32px;
    padding: 0 40px 22px 44px;
  }

  .page-contact .triage-points {
    margin-top: 0;
  }

  .page-contact .address-body {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 40px;
  }

  .page-contact .rhythm-figure {
    margin-top: 8px;
  }

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

@media (min-width: 1180px) {
  .page-contact .hero-frame {
    padding: 40px 44px 44px;
  }

  .page-contact .channel-card {
    padding: 22px 22px 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .triage-row summary,
  .page-contact .triage-toggle::after,
  .page-contact .partner-card,
  .page-contact .channel-link,
  .page-contact .address-meta a,
  .page-contact .partner-foot a {
    transition: none;
  }
}