.page-contact {
  --pc-rail: 352px;
  --pc-hair: 2px solid var(--moss);
  --pc-muted: rgba(245, 255, 249, 0.72);
  --pc-orange-soft: rgba(255, 107, 44, 0.08);
  background: var(--pitch);
  color: var(--chalk);
  padding-bottom: clamp(56px, 8vw, 96px);
}

.page-contact .breadcrumbs {
  padding-top: clamp(18px, 3vw, 30px);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.page-contact .breadcrumbs a {
  color: var(--chalk);
  text-decoration: none;
  opacity: 0.7;
}

.page-contact .breadcrumbs a:hover {
  color: var(--lime);
  opacity: 1;
}

.page-contact .breadcrumbs li[aria-current="page"] {
  color: var(--lime);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  display: grid;
  gap: 28px;
  padding-top: clamp(20px, 3vw, 34px);
  padding-bottom: clamp(36px, 5vw, 56px);
}

.page-contact .contact-hero__copy .label {
  display: inline-block;
  padding-bottom: 6px;
  border-bottom: 3px solid var(--lime);
}

.page-contact .contact-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(30px, 6.4vw, 58px);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.01em;
}

.page-contact .contact-hero .lede {
  margin: 16px 0 0;
  max-width: 58ch;
  font-size: clamp(14px, 2.2vw, 16px);
  line-height: 1.85;
  color: var(--pc-muted);
}

.page-contact .contact-hero__status {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 22px 0 0;
  padding: 9px 16px;
  border: var(--pc-hair);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--lime);
}

.page-contact .contact-hero__status .status-dot {
  background: var(--lime);
}

.page-contact .contact-hero__figure {
  margin: 0;
}

.page-contact .contact-hero__frame {
  border: var(--edge);
  box-shadow: var(--hard-shadow);
  background: var(--pitch-dark);
  overflow: hidden;
}

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

.page-contact .contact-hero__figure figcaption {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--pc-muted);
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: end;
    gap: clamp(32px, 5vw, 64px);
  }
}

/* ---------- 双栏主体 ---------- */

.page-contact .contact-layout {
  display: grid;
  gap: clamp(30px, 4vw, 52px);
  padding-top: clamp(6px, 2vw, 16px);
}

.page-contact .contact-rail {
  min-width: 0;
}

.page-contact .contact-panel {
  border: var(--edge);
  border-top: 6px solid var(--lime);
  background: var(--pitch-dark);
  box-shadow: var(--hard-shadow);
  padding: clamp(20px, 3vw, 28px);
}

.page-contact .contact-panel h2 {
  margin: 10px 0 0;
  font-size: clamp(18px, 2.6vw, 21px);
  line-height: 1.3;
}

.page-contact .channel-list {
  margin: 20px 0 0;
  display: grid;
  gap: 18px;
}

.page-contact .channel {
  border-top: 1px solid var(--moss);
  padding-top: 16px;
  min-width: 0;
}

.page-contact .channel:first-child {
  border-top: 0;
  padding-top: 0;
}

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

.page-contact .channel dd {
  margin: 7px 0 0;
  display: grid;
  gap: 8px;
}

.page-contact .channel-value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(14px, 2.1vw, 16px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--chalk);
  word-break: break-word;
  text-decoration: none;
}

.page-contact .channel-value--tel {
  color: var(--lime);
  letter-spacing: 0.04em;
}

.page-contact .channel-value--tel:hover {
  text-decoration: underline;
}

.page-contact .channel-value--addr {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.7;
}

.page-contact .channel-note {
  display: block;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--pc-muted);
}

.page-contact .channel-icp {
  margin: 20px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--moss);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--pc-muted);
}

.page-contact .rail-cross {
  margin-top: 20px;
  border: 1px solid var(--moss);
  padding: 16px clamp(16px, 3vw, 20px);
}

.page-contact .rail-cross .label {
  display: block;
  margin: 0 0 8px;
}

.page-contact .rail-cross a {
  display: block;
  padding: 9px 0;
  border-bottom: 1px solid var(--moss);
  color: var(--chalk);
  font-size: 14px;
  text-decoration: none;
  transition: color 0.18s ease, padding-left 0.18s ease;
}

.page-contact .rail-cross a:last-child {
  border-bottom: 0;
}

.page-contact .rail-cross a:hover {
  color: var(--lime);
  padding-left: 6px;
}

@media (min-width: 900px) {
  .page-contact .contact-layout {
    grid-template-columns: var(--pc-rail) minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .contact-rail {
    position: sticky;
    top: 92px;
  }
}

/* ---------- 右侧流程列 ---------- */

.page-contact .contact-flow {
  display: grid;
  gap: clamp(38px, 5vw, 64px);
  min-width: 0;
}

.page-contact .flow-head {
  margin-bottom: 22px;
}

.page-contact .flow-head h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(21px, 3.4vw, 30px);
  line-height: 1.2;
  font-weight: 800;
}

.page-contact .flow-lead {
  margin: 10px 0 0;
  max-width: 56ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--pc-muted);
}

.page-contact .flow-note {
  margin: 18px 0 0;
  padding-left: 16px;
  border-left: 3px solid var(--cyan);
  font-size: 13px;
  line-height: 1.8;
  color: var(--pc-muted);
}

/* ---------- 反馈类别切换 ---------- */

.page-contact .fb-switch {
  position: relative;
}

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

.page-contact .fb-tabs {
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(auto-fit, minmax(146px, 1fr));
}

.page-contact .fb-tab {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 14px;
  border: 2px solid var(--moss);
  background: transparent;
  color: var(--chalk);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.3;
  cursor: pointer;
  transition: border-color 0.18s ease, background-color 0.18s ease, color 0.18s ease;
}

.page-contact .fb-tab:hover {
  border-color: var(--cyan);
}

.page-contact .fb-tab__idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-contact .fb-input:focus-visible ~ .fb-tabs {
  outline: 3px solid var(--cyan);
  outline-offset: 4px;
}

.page-contact #fb-schedule:checked ~ .fb-tabs .fb-tab[for="fb-schedule"],
.page-contact #fb-subscription:checked ~ .fb-tabs .fb-tab[for="fb-subscription"],
.page-contact #fb-correction:checked ~ .fb-tabs .fb-tab[for="fb-correction"],
.page-contact #fb-coop:checked ~ .fb-tabs .fb-tab[for="fb-coop"],
.page-contact #fb-other:checked ~ .fb-tabs .fb-tab[for="fb-other"] {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--pitch-dark);
}

.page-contact #fb-schedule:checked ~ .fb-tabs .fb-tab[for="fb-schedule"] .fb-tab__idx,
.page-contact #fb-subscription:checked ~ .fb-tabs .fb-tab[for="fb-subscription"] .fb-tab__idx,
.page-contact #fb-correction:checked ~ .fb-tabs .fb-tab[for="fb-correction"] .fb-tab__idx,
.page-contact #fb-coop:checked ~ .fb-tabs .fb-tab[for="fb-coop"] .fb-tab__idx,
.page-contact #fb-other:checked ~ .fb-tabs .fb-tab[for="fb-other"] .fb-tab__idx {
  color: var(--pitch-dark);
}

.page-contact .fb-hints {
  margin-top: 16px;
}

.page-contact .fb-hint {
  display: none;
  padding: 16px 18px;
  border-left: 4px solid var(--orange);
  background: var(--pc-orange-soft);
}

.page-contact .fb-hint p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--chalk);
}

.page-contact .fb-hint strong {
  color: var(--orange);
}

.page-contact .fb-hint a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .fb-hint a:hover {
  color: var(--lime);
}

.page-contact #fb-schedule:checked ~ .fb-hints .fb-hint--schedule,
.page-contact #fb-subscription:checked ~ .fb-hints .fb-hint--subscription,
.page-contact #fb-correction:checked ~ .fb-hints .fb-hint--correction,
.page-contact #fb-coop:checked ~ .fb-hints .fb-hint--coop,
.page-contact #fb-other:checked ~ .fb-hints .fb-hint--other {
  display: block;
}

/* ---------- 准备清单 ---------- */

.page-contact .prep-grid {
  display: grid;
  gap: clamp(24px, 4vw, 34px);
}

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

.page-contact .prep-item {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 16px;
  border: 2px solid var(--moss);
  cursor: pointer;
  transition: border-color 0.18s ease, background-color 0.18s ease;
}

.page-contact .prep-item:hover {
  border-color: var(--cyan);
}

.page-contact .prep-item input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.page-contact .prep-tick {
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  border: 2px solid var(--moss);
  position: relative;
  transition: background-color 0.18s ease, border-color 0.18s ease;
}

.page-contact .prep-item input:checked ~ .prep-tick {
  background: var(--lime);
  border-color: var(--lime);
}

.page-contact .prep-item input:checked ~ .prep-tick::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 6px;
  height: 11px;
  border-right: 2px solid var(--pitch-dark);
  border-bottom: 2px solid var(--pitch-dark);
  transform: rotate(40deg);
}

.page-contact .prep-item input:focus-visible ~ .prep-tick {
  outline: 3px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .prep-item input:checked ~ .prep-body .prep-key {
  color: var(--lime);
}

.page-contact .prep-body {
  display: block;
  min-width: 0;
}

.page-contact .prep-key {
  display: block;
  margin-bottom: 3px;
  font-size: 14px;
  font-weight: 700;
  color: var(--chalk);
}

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

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

.page-contact .prep-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border: var(--edge);
  box-shadow: var(--hard-shadow);
  background: var(--pitch-dark);
  object-fit: cover;
}

.page-contact .prep-figure figcaption {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--pc-muted);
}

@media (min-width: 780px) {
  .page-contact .prep-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.78fr);
    align-items: start;
  }
}

/* ---------- 回复节奏 ---------- */

.page-contact .sla-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
}

.page-contact .sla-card {
  border: 2px solid var(--moss);
  background: var(--pitch-dark);
  padding: 22px 20px;
}

.page-contact .sla-card--accent {
  border-color: var(--lime);
  box-shadow: 6px 6px 0 var(--ink);
}

.page-contact .sla-num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: clamp(28px, 4.6vw, 42px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--lime);
}

.page-contact .sla-num--time {
  font-size: clamp(19px, 3.2vw, 26px);
  letter-spacing: 0.01em;
  color: var(--cyan);
}

.page-contact .sla-card p {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--pc-muted);
}

/* ---------- 合作沟通 ---------- */

.page-contact .coop-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  border: 1px solid var(--moss);
  background: var(--moss);
}

.page-contact .coop-list li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 16px 18px;
  background: var(--pitch);
  font-size: 14px;
  line-height: 1.75;
  color: var(--chalk);
}

.page-contact .coop-list .num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--orange);
}

.page-contact .coop-note {
  margin: 18px 0 0;
  padding-left: 16px;
  border-left: 3px solid var(--violet);
  font-size: 13px;
  line-height: 1.8;
  color: var(--pc-muted);
}

/* ---------- 处理路径 ---------- */

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

.page-contact .path-step {
  position: relative;
  padding: 22px 20px 0 0;
  border-top: 3px solid var(--moss);
}

.page-contact .path-step::before {
  content: "";
  position: absolute;
  top: -3px;
  left: 0;
  width: 36px;
  height: 3px;
  background: var(--lime);
}

.page-contact .path-idx {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--orange);
}

.page-contact .path-step h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  color: var(--chalk);
}

.page-contact .path-step p {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--pc-muted);
}

@media (min-width: 760px) {
  .page-contact .path-track {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
  }

  .page-contact .path-step {
    padding: 24px 24px 0 0;
  }

  .page-contact .path-step + .path-step {
    padding-left: 24px;
    border-left: 1px solid var(--moss);
  }

  .page-contact .path-step + .path-step::before {
    left: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .fb-tab,
  .page-contact .prep-item,
  .page-contact .prep-tick,
  .page-contact .rail-cross a {
    transition: none;
  }
}