.page-contact {
  --contact-panel: rgba(11, 27, 51, 0.72);
  --contact-line: rgba(46, 107, 168, 0.35);
  --contact-line-strong: rgba(46, 107, 168, 0.6);
  display: block;
  overflow-x: hidden;
  color: var(--chalk);
}

/* ---------- 首屏框景 ---------- */
.page-contact .contact-hero {
  padding-top: calc(var(--header-h) + 40px);
  padding-bottom: clamp(48px, 7vw, 96px);
}

.page-contact .breadcrumbs {
  margin-bottom: clamp(28px, 4vw, 52px);
}

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

.page-contact .hero-note {
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--orange);
  text-transform: uppercase;
}

.page-contact .hero-copy h1 {
  margin: 0 0 22px;
  font-size: clamp(34px, 8vw, 64px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--chalk);
}

.page-contact .hero-lead {
  max-width: 40ch;
  margin: 0 0 18px;
  font-size: 17px;
  line-height: 1.9;
  color: var(--chalk);
}

.page-contact .hero-sub {
  max-width: 38ch;
  margin: 0 0 28px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .contact-toc {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .toc-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px 8px 10px;
  border: 1px solid var(--contact-line);
  border-radius: var(--pill);
  font-size: 13px;
  color: var(--mist);
  text-decoration: none;
  transition: border-color 220ms var(--ease), color 220ms var(--ease);
}

.page-contact .toc-link:hover,
.page-contact .toc-link:focus-visible {
  border-color: var(--orange);
  color: var(--chalk);
}

.page-contact .toc-link[aria-current="true"] {
  border-color: var(--orange);
  color: var(--orange);
}

.page-contact .toc-num {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--scale-blue);
}

.page-contact .toc-link[aria-current="true"] .toc-num {
  color: var(--orange);
}

.page-contact .contact-frame {
  position: relative;
  padding: 10px;
  border: 1px solid var(--contact-line);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(20, 51, 92, 0.4), rgba(5, 8, 15, 0.9));
}

.page-contact .contact-frame::before,
.page-contact .contact-frame::after {
  content: "";
  position: absolute;
  width: 20px;
  height: 20px;
  border: 2px solid var(--orange);
}

.page-contact .contact-frame::before {
  top: 0;
  left: 0;
  border-right: 0;
  border-bottom: 0;
  border-top-left-radius: var(--radius-lg);
}

.page-contact .contact-frame::after {
  right: 0;
  bottom: 0;
  border-left: 0;
  border-top: 0;
  border-bottom-right-radius: var(--radius-lg);
}

.page-contact .hero-figure {
  margin: 0;
}

.page-contact .hero-figure .figure-media {
  border-radius: var(--radius-md);
  overflow: hidden;
}

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

.page-contact .figure-cap {
  margin-top: 12px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

/* ---------- 色带分隔 ---------- */
.page-contact .contact-band {
  height: 6px;
  margin: 0 var(--gutter);
  border-radius: var(--pill);
  background: linear-gradient(90deg, var(--orange), var(--ember));
}

.page-contact .contact-band--green {
  background: linear-gradient(90deg, var(--green), var(--yellow));
}

/* ---------- 章节头 ---------- */
.page-contact .section {
  padding-top: clamp(56px, 8vw, 96px);
}

.page-contact .section-head {
  display: grid;
  gap: 8px;
  margin-bottom: clamp(28px, 4vw, 48px);
}

.page-contact .section-num {
  margin: 0;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--orange);
}

.page-contact .section-title {
  margin: 0;
  font-size: clamp(26px, 5vw, 44px);
  font-weight: 800;
  line-height: 1.2;
  color: var(--chalk);
}

.page-contact .section-note {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

/* ---------- 01 渠道展签 ---------- */
.page-contact .channel-deck {
  display: grid;
  gap: 26px;
}

.page-contact .channel-plate {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(24px, 3.4vw, 34px);
  background: var(--contact-panel);
  border: 1px solid var(--contact-line);
  border-radius: var(--radius-lg);
  transition: border-color 240ms var(--ease), transform 240ms var(--ease);
}

.page-contact .channel-plate:hover,
.page-contact .channel-plate:focus-within {
  border-color: var(--orange);
  transform: translateY(-4px);
}

.page-contact .channel-plate--mail {
  background: linear-gradient(150deg, rgba(255, 106, 26, 0.16), rgba(11, 27, 51, 0.85));
  border-color: var(--contact-line-strong);
}

.page-contact .plate-label {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--scale-blue);
  text-transform: uppercase;
}

.page-contact .channel-plate--mail .plate-label {
  color: var(--orange);
}

.page-contact .plate-body {
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--mist);
}

.page-contact .channel-value {
  margin: 0;
  font-family: var(--mono);
  letter-spacing: 0.08em;
  color: var(--chalk);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-contact .channel-value--mail {
  font-size: clamp(16px, 3.6vw, 26px);
  color: var(--orange);
}

.page-contact .channel-value--phone {
  font-size: clamp(24px, 5vw, 34px);
  color: var(--chalk);
}

.page-contact .channel-value--addr {
  font-size: clamp(15px, 2.4vw, 18px);
  line-height: 1.8;
  letter-spacing: 0.02em;
}

.page-contact .channel-hint {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-contact .addr-scale {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  height: 22px;
  margin-top: auto;
  border-bottom: 1px solid var(--contact-line);
}

.page-contact .scale-tick {
  width: 1px;
  height: 20px;
  background: var(--scale-blue);
}

.page-contact .scale-tick:nth-child(2),
.page-contact .scale-tick:nth-child(4) {
  height: 12px;
}

/* ---------- 02 受理边界 ---------- */
.page-contact .scope-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .scope-row {
  display: grid;
  gap: 16px;
  padding: 26px 0;
  border-top: 1px solid var(--contact-line);
}

.page-contact .scope-row:last-child {
  border-bottom: 1px solid var(--contact-line);
}

.page-contact .scope-idx {
  display: inline-block;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--green);
}

.page-contact .scope-name {
  margin: 8px 0 6px;
  font-size: 20px;
  font-weight: 800;
  color: var(--chalk);
}

.page-contact .scope-note {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .scope-body p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--mist);
}

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

.page-contact .need-list li {
  display: flex;
  gap: 10px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--chalk);
}

.page-contact .need-dot {
  flex: 0 0 auto;
  width: 7px;
  height: 7px;
  margin-top: 11px;
  border-radius: 50%;
  background: var(--orange);
}

.page-contact .scope-warn {
  margin: 14px 0 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--yellow);
}

.page-contact .scope-refuse {
  margin-top: 32px;
  padding: clamp(22px, 3vw, 30px);
  background: var(--black);
  border: 1px solid var(--contact-line);
  border-radius: var(--radius-lg);
}

.page-contact .scope-refuse .plate-label {
  color: var(--yellow);
  margin-bottom: 12px;
}

/* ---------- 03 纠错流程 ---------- */
.page-contact .correction-grid {
  display: grid;
  gap: clamp(32px, 5vw, 48px);
}

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

.page-contact .timeline::before {
  content: "";
  position: absolute;
  top: 12px;
  bottom: 24px;
  left: 11px;
  width: 2px;
  border-radius: var(--pill);
  background: linear-gradient(180deg, var(--orange), var(--green));
}

.page-contact .timeline-node {
  position: relative;
  padding-left: 44px;
  padding-bottom: 26px;
}

.page-contact .timeline-node:last-child {
  padding-bottom: 0;
}

.page-contact .node-dot {
  position: absolute;
  top: 4px;
  left: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--orange);
  box-shadow: 0 0 0 4px rgba(5, 8, 15, 0.9);
}

.page-contact .step {
  border: 1px solid var(--contact-line);
  border-radius: var(--radius-md);
  background: var(--contact-panel);
  overflow: hidden;
}

.page-contact .step-summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 16px 20px;
  cursor: pointer;
  list-style: none;
  font-size: 17px;
  font-weight: 700;
  color: var(--chalk);
}

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

.page-contact .step-summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--mono);
  font-size: 16px;
  color: var(--orange);
}

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

.page-contact .step-idx {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--scale-blue);
}

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

.page-contact .step-body p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--mist);
}

.page-contact .step-need {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--green);
}

.page-contact .flow-figure {
  margin: 0;
  align-self: start;
}

.page-contact .flow-figure .figure-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--contact-line);
}

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

/* ---------- 04 回复节奏 ---------- */
.page-contact .cadence {
  display: grid;
  gap: 20px;
}

.page-contact .cadence-item {
  padding: clamp(22px, 3vw, 30px);
  border: 1px solid var(--contact-line);
  border-radius: var(--radius-lg);
  background: var(--contact-panel);
}

.page-contact .cadence-item:nth-child(2) {
  background: linear-gradient(160deg, rgba(47, 191, 113, 0.14), rgba(11, 27, 51, 0.85));
}

.page-contact .cadence-num {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: clamp(28px, 5vw, 44px);
  letter-spacing: 0.01em;
  color: var(--orange);
}

.page-contact .cadence-item:nth-child(2) .cadence-num {
  color: var(--green);
}

.page-contact .cadence-name {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 700;
  color: var(--chalk);
}

.page-contact .cadence-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--mist);
}

.page-contact .cadence-note {
  margin-top: 28px;
  padding: clamp(22px, 3vw, 28px);
  border: 1px dashed var(--contact-line-strong);
  border-radius: var(--radius-lg);
}

.page-contact .cadence-note .plate-label {
  margin-bottom: 10px;
  color: var(--scale-blue);
}

/* ---------- 05 自查清单 ---------- */
.page-contact .check-list {
  display: grid;
  gap: 14px;
  margin: 0 0 32px;
  padding: 0;
  list-style: none;
}

.page-contact .check-item {
  display: flex;
  gap: 14px;
  padding: 18px 20px;
  border: 1px solid var(--contact-line);
  border-radius: var(--radius-md);
  background: rgba(11, 27, 51, 0.55);
  transition: border-color 220ms var(--ease);
}

.page-contact .check-item:hover {
  border-color: var(--orange);
}

.page-contact .check-box {
  appearance: none;
  -webkit-appearance: none;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  margin: 3px 0 0;
  border: 1px solid var(--scale-blue);
  border-radius: 7px;
  background: var(--ink);
  cursor: pointer;
  transition: background 180ms var(--ease), border-color 180ms var(--ease);
}

.page-contact .check-box:checked {
  background: var(--green);
  border-color: var(--green);
  box-shadow: inset 0 0 0 4px var(--ink);
}

.page-contact .check-box:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

.page-contact .check-label {
  display: grid;
  gap: 6px;
  cursor: pointer;
}

.page-contact .check-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--chalk);
}

.page-contact .check-text {
  font-size: 14px;
  line-height: 1.9;
  color: var(--mist);
}

.page-contact .inline-link {
  color: var(--ember);
  text-decoration: none;
  border-bottom: 1px solid var(--contact-line-strong);
  padding-bottom: 1px;
}

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

.page-contact .check-close {
  padding: clamp(22px, 3vw, 28px);
  border: 1px solid var(--contact-line);
  border-radius: var(--radius-lg);
  background: linear-gradient(150deg, rgba(20, 51, 92, 0.6), rgba(5, 8, 15, 0.9));
}

.page-contact .close-lead {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--chalk);
}

.page-contact .close-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .channel-deck {
    grid-template-columns: 1fr 1fr;
  }

  .page-contact .channel-plate--mail {
    grid-column: 1 / -1;
  }

  .page-contact .scope-row {
    grid-template-columns: 200px 1fr;
    gap: 24px;
  }

  .page-contact .check-item {
    padding: 22px 24px;
  }
}

@media (min-width: 900px) {
  .page-contact .hero-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: center;
  }

  .page-contact .correction-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
  }

  .page-contact .cadence {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }
}

@media (min-width: 1040px) {
  .page-contact .channel-deck {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 26px;
  }

  .page-contact .channel-plate--mail {
    grid-column: 1 / span 5;
    grid-row: 1;
  }

  .page-contact .channel-plate--phone {
    grid-column: 6 / span 4;
    grid-row: 1;
    margin-top: 44px;
  }

  .page-contact .channel-plate--addr {
    grid-column: 10 / span 3;
    grid-row: 1;
    margin-top: 88px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-plate,
  .page-contact .check-item,
  .page-contact .toc-link,
  .page-contact .check-box {
    transition: none;
  }

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