.page-contact {
  --pc-soft: rgba(243, 235, 221, 0.74);
  --pc-faint: rgba(243, 235, 221, 0.52);
  --pc-panel: rgba(30, 58, 82, 0.35);
  background: var(--ink);
  color: var(--cream);
  display: block;
}

.page-contact .section {
  padding: 40px 0;
  border-bottom: 1px solid rgba(243, 235, 221, 0.1);
}

.page-contact .section:last-child {
  border-bottom: 0;
}

.page-contact .section-head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 12px 14px;
  margin-bottom: 24px;
}

.page-contact .section-num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--gold);
  border: 2px solid var(--gold-deep);
  padding: 3px 8px;
  transform: skewX(-8deg);
}

.page-contact .section-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 3.4vw, 32px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--cream);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: 28px 0 54px;
  background:
    radial-gradient(circle at 16% 8%, rgba(232, 178, 58, 0.16), transparent 48%),
    radial-gradient(circle at 88% 84%, rgba(47, 184, 154, 0.12), transparent 46%),
    linear-gradient(180deg, var(--charcoal), var(--ink) 76%);
  border-bottom: var(--bw) solid var(--haze);
}

.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--rock);
  margin-bottom: 22px;
}

.page-contact .breadcrumb a {
  color: var(--cream);
  text-decoration: none;
  border-bottom: 1px solid rgba(232, 178, 58, 0.45);
}

.page-contact .breadcrumb a:hover {
  color: var(--gold);
}

.page-contact .breadcrumb span[aria-current="page"] {
  color: var(--gold);
}

.page-contact .hero-grid {
  display: grid;
  gap: 28px;
}

.page-contact .hero-kicker {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--gold);
}

.page-contact .hero-copy h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 6.4vw, 60px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--cream);
  text-shadow: 3px 3px 0 rgba(169, 121, 31, 0.35);
}

.page-contact .hero-lead {
  margin: 0 0 24px;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--pc-soft);
}

.page-contact .hero-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .hero-facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 14px;
  color: var(--pc-soft);
  border-left: 3px solid var(--flame);
  padding-left: 12px;
}

.page-contact .hero-fact-num {
  font-size: 20px;
  font-weight: 600;
  color: var(--gold);
}

.page-contact .hero-media {
  margin: 0;
  border: var(--bw) solid var(--gold-deep);
  box-shadow: var(--shadow-gold);
  overflow: hidden;
  background: var(--charcoal);
}

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

.page-contact .hero-caption,
.page-contact .flow-caption {
  padding: 10px 14px;
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--pc-faint);
  border-top: 1px solid rgba(243, 235, 221, 0.14);
  background: rgba(11, 27, 43, 0.7);
}

.page-contact .hero-slash {
  position: absolute;
  left: -6%;
  right: -6%;
  bottom: -2px;
  height: 8px;
  background: linear-gradient(90deg, var(--flame), var(--gold) 48%, var(--jade));
  transform: skewX(-18deg);
  transform-origin: left center;
}

/* ---------- 渠道与反馈准备 ---------- */
.page-contact .contact-split {
  display: grid;
  gap: var(--gap);
}

.page-contact .channel-stack {
  display: grid;
  gap: 14px;
}

.page-contact .channel-card {
  position: relative;
  padding: 18px 18px 16px;
  border: var(--bw) solid var(--haze);
  background: var(--charcoal);
  box-shadow: var(--shadow-hard);
}

.page-contact .channel-card--gold {
  border-color: var(--gold);
  box-shadow: var(--shadow-gold);
  background: linear-gradient(160deg, rgba(232, 178, 58, 0.14), var(--charcoal) 64%);
}

.page-contact .channel-key {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-contact .channel-val {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(16px, 2.4vw, 20px);
  line-height: 1.4;
  color: var(--cream);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .channel-val--text {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 17px;
  letter-spacing: 0.02em;
}

.page-contact .channel-note {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--pc-soft);
}

.page-contact .prep-card {
  border: var(--bw) solid var(--haze);
  border-top: 6px solid var(--flame);
  background: var(--charcoal);
  box-shadow: var(--shadow-hard);
  padding: 22px 18px 20px;
}

.page-contact .prep-heading {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(19px, 2.6vw, 24px);
  letter-spacing: -0.01em;
  color: var(--cream);
}

.page-contact .prep-intro {
  margin: 0 0 20px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--pc-soft);
}

.page-contact .prep-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-contact .prep-item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(243, 235, 221, 0.12);
}

.page-contact .prep-item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .prep-num {
  font-size: 13px;
  font-weight: 600;
  color: var(--jade);
  padding-top: 3px;
}

.page-contact .prep-title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: 0.01em;
  color: var(--gold);
}

.page-contact .prep-body {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--pc-soft);
}

.page-contact .tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.page-contact .tag-row .tag {
  font-size: 12px;
  letter-spacing: 0.08em;
  padding: 5px 10px;
  border: 2px solid var(--haze);
  background: rgba(30, 58, 82, 0.5);
  color: var(--cream);
}

.page-contact .prep-foot {
  margin: 16px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--pc-faint);
}

.page-contact a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(232, 178, 58, 0.4);
}

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

/* ---------- 时间线 ---------- */
.page-contact .timeline-wrap {
  display: grid;
  gap: 26px;
}

.page-contact .timeline {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .timeline-step {
  position: relative;
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 14px;
  padding-bottom: 18px;
}

.page-contact .timeline-step::after {
  content: "";
  position: absolute;
  left: 14px;
  top: 26px;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--gold-deep), var(--haze));
}

.page-contact .timeline-step:last-child::after {
  display: none;
}

.page-contact .step-node {
  width: 16px;
  height: 16px;
  margin: 8px 0 0 6px;
  background: var(--gold);
  box-shadow: 0 0 0 3px rgba(232, 178, 58, 0.18);
  transform: rotate(45deg);
  position: relative;
  z-index: 1;
}

.page-contact .step-body {
  border: 2px solid var(--haze);
  background: var(--pc-panel);
  padding: 14px 16px;
}

.page-contact .step-body[open] {
  border-color: var(--gold-deep);
  background: rgba(17, 24, 32, 0.85);
}

.page-contact .step-body summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 12px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  color: var(--cream);
}

.page-contact .step-body summary::-webkit-details-marker {
  display: none;
}

.page-contact .step-body summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--gold);
}

.page-contact .step-body[open] summary::after {
  content: "–";
}

.page-contact .step-time {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--jade);
}

.page-contact .step-text {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--pc-soft);
}

.page-contact .flow-media {
  margin: 0;
  border: var(--bw) solid var(--haze);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
  background: var(--charcoal);
}

/* ---------- 合作 ---------- */
.page-contact .section--coop {
  background:
    linear-gradient(180deg, rgba(232, 178, 58, 0.07), transparent 62%),
    var(--ink);
}

.page-contact .coop-grid {
  display: grid;
  gap: var(--gap);
}

.page-contact .coop-lead {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--pc-soft);
}

.page-contact .coop-list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .coop-list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--cream);
}

.page-contact .coop-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  background: var(--flame);
  transform: rotate(45deg);
}

.page-contact .coop-note {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--pc-soft);
  border-left: 3px solid var(--gold);
  padding-left: 12px;
}

.page-contact .coop-link {
  margin: 0;
  font-size: 14px;
}

.page-contact .coop-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  align-content: start;
}

.page-contact .coop-stat {
  border: 2px solid var(--haze);
  background: var(--charcoal);
  padding: 16px 14px;
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.45);
}

.page-contact .coop-stat-num {
  display: block;
  font-size: 30px;
  font-weight: 600;
  line-height: 1.1;
  color: var(--jade);
}

.page-contact .coop-stat-label {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--pc-soft);
}

/* ---------- 地址 ---------- */
.page-contact .addr-grid {
  display: grid;
  gap: var(--gap);
}

.page-contact .addr-card {
  border: var(--bw) solid var(--haze);
  background: var(--charcoal);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

.page-contact .addr-route {
  height: 108px;
  border-bottom: 2px solid var(--haze);
  background:
    repeating-linear-gradient(115deg, rgba(232, 178, 58, 0.2) 0 2px, transparent 2px 22px),
    repeating-linear-gradient(-115deg, rgba(47, 184, 154, 0.12) 0 2px, transparent 2px 34px),
    linear-gradient(155deg, var(--haze), var(--charcoal));
}

.page-contact .addr-body {
  padding: 18px;
}

.page-contact .addr-line {
  margin: 0 0 12px;
  font-size: clamp(15px, 2.2vw, 18px);
  font-weight: 600;
  line-height: 1.5;
  color: var(--gold);
  overflow-wrap: anywhere;
}

.page-contact .addr-text {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--pc-soft);
}

.page-contact .addr-icp {
  margin: 14px 0 0;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--rock);
}

.page-contact .addr-side {
  border: 2px solid var(--haze);
  background: rgba(30, 58, 82, 0.28);
  padding: 20px 18px;
}

.page-contact .addr-side-title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  color: var(--cream);
}

.page-contact .addr-tips {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .addr-tips li {
  font-size: 14px;
  line-height: 1.7;
  color: var(--pc-soft);
  padding-bottom: 10px;
  border-bottom: 1px dashed rgba(243, 235, 221, 0.16);
}

.page-contact .addr-tips li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .addr-side-foot {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--pc-faint);
}

/* ---------- 相关入口 ---------- */
.page-contact .section--links {
  padding-bottom: 56px;
}

.page-contact .link-grid {
  display: grid;
  gap: 12px;
}

.page-contact .link-card {
  display: block;
  border: 2px solid var(--haze);
  background: var(--charcoal);
  padding: 16px 16px 18px;
  text-decoration: none;
  border-bottom: 2px solid var(--haze);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.page-contact .link-card:hover,
.page-contact .link-card:focus-visible {
  transform: translate(2px, -2px);
  border-color: var(--gold);
  box-shadow: 6px 6px 0 rgba(169, 121, 31, 0.4);
}

.page-contact .link-card-key {
  display: block;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--jade);
  margin-bottom: 8px;
}

.page-contact .link-card-title {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.4;
  color: var(--cream);
  margin-bottom: 6px;
}

.page-contact .link-card-desc {
  display: block;
  font-size: 13px;
  line-height: 1.7;
  color: var(--pc-faint);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .section {
    padding: 52px 0;
  }

  .page-contact .hero-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }

  .page-contact .hero-facts li {
    display: block;
    border-left: 0;
    border-top: 3px solid var(--flame);
    padding: 10px 0 0;
  }

  .page-contact .hero-fact-num {
    display: block;
    margin-bottom: 4px;
    font-size: 24px;
  }

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

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

@media (min-width: 900px) {
  .page-contact .contact-hero {
    padding: 34px 0 72px;
  }

  .page-contact .hero-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: center;
    gap: 44px;
  }

  .page-contact .contact-split {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

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

  .page-contact .prep-card {
    padding: 26px 24px 24px;
  }

  .page-contact .timeline-wrap {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: 28px;
  }

  .page-contact .coop-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    align-items: start;
    gap: 32px;
  }

  .page-contact .addr-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-contact .section-head {
    margin-bottom: 30px;
  }
}

@media (min-width: 1100px) {
  .page-contact .link-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .coop-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .link-card {
    transition: none;
  }

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