.page-contact {
  --pc-panel: rgba(10, 42, 67, .72);
  --pc-edge: rgba(111, 233, 224, .3);
  padding-bottom: 64px;
}

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

.page-contact a {
  text-underline-offset: 3px;
}

.page-contact .breadcrumbs {
  margin-top: 18px;
  font-size: 13px;
}

.page-contact p a {
  color: var(--ice);
  text-decoration: underline;
}

/* ============ 首屏框景 ============ */
.page-contact .hero-frame {
  position: relative;
  display: grid;
  gap: 22px;
  padding: 20px;
  border: 1px solid var(--line-strong);
  background: linear-gradient(158deg, rgba(16, 64, 94, .82) 0%, rgba(10, 42, 67, .9) 48%, rgba(4, 18, 31, .97) 100%);
  overflow: hidden;
}

.page-contact .hero-frame::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 128px;
  height: 4px;
  background: linear-gradient(90deg, var(--ice), var(--yellow) 55%, var(--orange));
}

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

.page-contact .hero-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 6.4vw, 46px);
  line-height: 1.16;
  letter-spacing: -.02em;
  color: var(--paper);
  margin: 8px 0 14px;
}

.page-contact .lead {
  color: var(--mist);
  max-width: 46ch;
  margin: 0;
}

.page-contact .hero-points {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .hero-points li {
  position: relative;
  padding-left: 18px;
}

.page-contact .hero-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .64em;
  width: 8px;
  height: 2px;
  background: var(--ice);
}

.page-contact .hero-points b {
  color: var(--yellow);
  font-size: 15px;
}

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

.page-contact .hero-visual {
  display: grid;
  gap: 8px;
  align-content: start;
}

.page-contact .hero-visual .media-frame {
  border: 1px solid var(--pc-edge);
}

.page-contact .hero-visual .media-caption {
  color: var(--tide);
}

/* ============ 合作方向切换台 ============ */
.page-contact .dir-switch {
  position: relative;
  display: grid;
  gap: 16px;
}

.page-contact .dir-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-contact .dir-rail {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
}

.page-contact .dir-tab {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  min-width: 182px;
  padding: 13px 14px;
  border: 1px solid var(--line);
  border-left: 3px solid rgba(122, 152, 168, .45);
  background: var(--pc-panel);
  color: var(--mist);
  font-size: 14px;
  line-height: 1.3;
  cursor: pointer;
  transition: border-color .18s ease, background .18s ease, color .18s ease;
}

.page-contact .dir-tab-num {
  color: var(--tide);
  font-size: 12px;
  letter-spacing: .06em;
}

.page-contact .dir-tab-text {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: .01em;
}

.page-contact .dir-radio:nth-of-type(1):checked ~ .dir-rail .dir-tab:nth-child(1),
.page-contact .dir-radio:nth-of-type(2):checked ~ .dir-rail .dir-tab:nth-child(2),
.page-contact .dir-radio:nth-of-type(3):checked ~ .dir-rail .dir-tab:nth-child(3),
.page-contact .dir-radio:nth-of-type(4):checked ~ .dir-rail .dir-tab:nth-child(4) {
  border-color: var(--pc-edge);
  border-left-color: var(--ice);
  background: linear-gradient(90deg, rgba(111, 233, 224, .18), rgba(10, 42, 67, .78) 72%);
  color: var(--paper);
}

.page-contact .dir-radio:nth-of-type(1):checked ~ .dir-rail .dir-tab:nth-child(1) .dir-tab-num,
.page-contact .dir-radio:nth-of-type(2):checked ~ .dir-rail .dir-tab:nth-child(2) .dir-tab-num,
.page-contact .dir-radio:nth-of-type(3):checked ~ .dir-rail .dir-tab:nth-child(3) .dir-tab-num,
.page-contact .dir-radio:nth-of-type(4):checked ~ .dir-rail .dir-tab:nth-child(4) .dir-tab-num {
  color: var(--yellow);
}

.page-contact .dir-panels {
  display: grid;
}

.page-contact .dir-panel {
  display: none;
  padding: 20px;
  border: 1px solid var(--line);
  background: linear-gradient(150deg, rgba(10, 42, 67, .92), rgba(4, 18, 31, .92));
}

.page-contact .dir-radio:nth-of-type(1):checked ~ .dir-panels .dir-panel:nth-child(1),
.page-contact .dir-radio:nth-of-type(2):checked ~ .dir-panels .dir-panel:nth-child(2),
.page-contact .dir-radio:nth-of-type(3):checked ~ .dir-panels .dir-panel:nth-child(3),
.page-contact .dir-radio:nth-of-type(4):checked ~ .dir-panels .dir-panel:nth-child(4) {
  display: block;
}

.page-contact .dir-panel-title {
  font-family: var(--font-display);
  font-size: 20px;
  color: var(--paper);
  margin: 0 0 12px;
}

.page-contact .dir-panel p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
  margin: 0 0 10px;
  max-width: 62ch;
}

.page-contact .dir-panel .dir-fit {
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: 1px dashed rgba(111, 233, 224, .32);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--ice);
}

/* ============ 五步流程 ============ */
.page-contact .flow-grid {
  display: grid;
  gap: 22px;
}

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

.page-contact .step {
  position: relative;
  padding: 18px 16px 16px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(10, 42, 67, .86), rgba(4, 18, 31, .93));
  transition: border-color .18s ease, background .18s ease;
}

.page-contact .step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 24px;
  margin-bottom: 10px;
  border: 1px solid rgba(255, 210, 63, .45);
  background: rgba(255, 210, 63, .14);
  color: var(--yellow);
  font-size: 12px;
  letter-spacing: .08em;
}

.page-contact .step-title {
  font-family: var(--font-display);
  font-size: 17px;
  color: var(--paper);
  margin: 0 0 8px;
}

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

.page-contact .step-out {
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--ice);
  margin: 0;
}

.page-contact .flow-aside {
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-contact .flow-aside .media-frame {
  border: 1px solid var(--pc-edge);
}

.page-contact .flow-aside-text {
  font-size: 13px;
  line-height: 1.8;
  color: var(--tide);
  margin: 0;
}

/* ============ 准备材料 ============ */
.page-contact .prep-card {
  padding: 18px;
  border: 1px solid var(--line);
  border-top: 3px solid var(--ice);
  background: rgba(10, 42, 67, .58);
}

.page-contact .prep-label {
  font-family: var(--font-display);
  font-size: 17px;
  color: var(--paper);
  margin: 0 0 12px;
}

.page-contact .prep-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-contact .prep-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .prep-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 6px;
  height: 6px;
  background: var(--orange);
}

/* ============ 联系卡（纸张叠层） ============ */
.page-contact .contact-deck {
  display: grid;
  gap: 18px;
}

.page-contact .contact-card {
  position: relative;
  padding: 18px 18px 16px;
  background: var(--chart);
  color: var(--ink);
  border: 1px solid rgba(4, 18, 31, .3);
  box-shadow: 7px 7px 0 rgba(4, 18, 31, .62), 7px 7px 0 1px rgba(111, 233, 224, .18);
}

.page-contact .contact-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 42px;
  height: 4px;
  background: var(--orange);
}

.page-contact .cc-label {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--mid);
  margin: 6px 0 8px;
}

.page-contact .cc-value {
  font-size: 15px;
  line-height: 1.7;
  margin: 0 0 10px;
  color: var(--ink);
  word-break: break-word;
}

.page-contact .cc-value.mono {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: .02em;
  word-break: break-all;
}

.page-contact .cc-note {
  font-size: 13px;
  line-height: 1.7;
  color: var(--mid);
  margin: 0 0 14px;
}

.page-contact .copy-btn {
  font: inherit;
  font-size: 12px;
  letter-spacing: .06em;
  padding: 6px 12px;
  border: 1px solid rgba(4, 18, 31, .38);
  border-radius: var(--radius);
  background: rgba(4, 18, 31, .05);
  color: var(--ink);
  cursor: pointer;
  transition: background .16s ease, color .16s ease, border-color .16s ease;
}

.page-contact .copy-btn:hover {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--chart);
}

.page-contact .copy-btn.is-copied {
  background: var(--ice);
  border-color: var(--ice);
  color: var(--ink);
}

/* ============ 受理编号 ============ */
.page-contact .receipt-box {
  display: grid;
  gap: 14px;
  padding: 22px;
  border: 1px solid var(--line);
  background: linear-gradient(140deg, rgba(16, 64, 94, .72), rgba(4, 18, 31, .92));
}

.page-contact .receipt-code {
  display: inline-block;
  width: fit-content;
  margin: 0;
  padding: 10px 18px;
  font-family: var(--font-mono);
  font-size: clamp(22px, 5vw, 30px);
  letter-spacing: .1em;
  color: var(--yellow);
  background: rgba(255, 210, 63, .08);
  border: 1px dashed rgba(255, 210, 63, .55);
}

.page-contact .receipt-text {
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
  margin: 0;
  max-width: 66ch;
}

.page-contact .receipt-note {
  font-size: 13px;
  line-height: 1.75;
  color: var(--tide);
  margin: 0;
  max-width: 66ch;
}

/* ============ 服务范围 ============ */
.page-contact .reach-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.page-contact .reach-grid .stat {
  display: grid;
  gap: 8px;
  padding: 16px;
  border: 1px solid var(--line);
  background: rgba(10, 42, 67, .62);
}

.page-contact .reach-grid .stat-value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 28px;
  line-height: 1;
  letter-spacing: .02em;
  color: var(--yellow);
}

.page-contact .reach-grid .stat-label {
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--mist);
}

.page-contact .reach-text {
  margin: 22px 0 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--mist);
  max-width: 74ch;
}

/* ============ 桌面栅格 ============ */
@media (min-width: 760px) {
  .page-contact .hero-frame {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 32px;
    padding: 32px;
  }

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

  .page-contact .reach-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-contact .dir-switch {
    grid-template-columns: 238px minmax(0, 1fr);
    align-items: start;
    gap: 22px;
  }

  .page-contact .dir-rail {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-contact .dir-tab {
    min-width: 0;
    width: 100%;
  }
}

@media (min-width: 1000px) {
  .page-contact .flow-grid {
    grid-template-columns: minmax(0, 1fr) 280px;
    align-items: start;
    gap: 26px;
  }

  .page-contact .steps {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 12px;
  }

  .page-contact .steps::before {
    content: "";
    position: absolute;
    left: 8px;
    right: 8px;
    top: 30px;
    height: 2px;
    background: repeating-linear-gradient(90deg, rgba(111, 233, 224, .7) 0 10px, transparent 10px 20px);
  }

  .page-contact .step {
    padding-top: 22px;
  }
}

@media (hover: hover) {
  .page-contact .step:hover {
    border-color: var(--line-strong);
    background: linear-gradient(180deg, rgba(16, 64, 94, .92), rgba(4, 18, 31, .94));
  }

  .page-contact .dir-tab:hover {
    border-left-color: var(--ice);
    color: var(--paper);
  }

  .page-contact .prep-card:hover {
    border-color: var(--line-strong);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .dir-tab,
  .page-contact .step,
  .page-contact .copy-btn {
    transition: none;
  }
}