.page-contact {
  --pc-soft: #4A4238;
  --pc-shadow: 0 1px 2px rgba(30, 26, 22, 0.06), 0 8px 24px rgba(30, 26, 22, 0.05);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  padding-bottom: 48px;
  overflow-x: hidden;
}

.page-contact .breadcrumb {
  padding: 18px 0 0;
  font-size: 13px;
  color: var(--steel);
}

.page-contact .breadcrumb a {
  color: var(--green);
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
}

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

.page-contact .breadcrumb span[aria-hidden="true"] {
  margin: 0 8px;
  color: var(--rule);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding: 20px 0 24px;
  border-bottom: 1px solid var(--rule);
}

.page-contact .contact-hero .eyebrow {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--brass);
  margin: 0 0 12px;
}

.page-contact .contact-hero h1 {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 26px;
  line-height: 1.32;
  letter-spacing: 0.01em;
  margin: 0 0 14px;
  max-width: 20ch;
}

.page-contact .contact-lede {
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--pc-soft);
  max-width: 46ch;
  margin: 0;
}

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

.page-contact .contact-toc .toc-link {
  display: inline-block;
  font-size: 13.5px;
  line-height: 1.4;
  padding: 6px 13px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: var(--paper-lift);
  color: var(--green);
  text-decoration: none;
  transition: border-color 0.18s ease, color 0.18s ease, background 0.18s ease;
}

.page-contact .contact-toc .toc-link:hover,
.page-contact .contact-toc .toc-link:focus-visible {
  border-color: var(--brass);
  color: var(--brass);
  background: #fff;
  outline: none;
}

/* ---------- 章节通用 ---------- */
.page-contact .ct-section {
  padding: 34px 0 6px;
  border-top: 1px dashed var(--rule);
  margin-top: 30px;
}

.page-contact .ct-section:first-of-type {
  border-top: 0;
}

.page-contact .ct-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.page-contact .chapter-num {
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--brass);
  border: 1px solid var(--rule);
  border-radius: 2px;
  padding: 3px 9px;
  background: var(--paper-lift);
}

.page-contact .section-title {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 20px;
  line-height: 1.4;
  margin: 0;
  color: var(--green);
}

.page-contact .ct-sub {
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--pc-soft);
  max-width: 48ch;
  margin: 0 0 20px;
}

.page-contact .ilink {
  color: var(--brass);
  text-decoration: none;
  border-bottom: 1px solid var(--brass-light);
}

.page-contact .ilink:hover,
.page-contact .ilink:focus-visible {
  color: var(--alert);
  border-bottom-color: var(--alert);
  outline: none;
}

/* ---------- 图框 ---------- */
.page-contact .contact-figure {
  margin: 0;
}

.page-contact .contact-figure--low {
  margin-top: 26px;
}

.page-contact .contact-figure .figure-media {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--rule);
  background: var(--paper-lift);
  box-shadow: var(--pc-shadow);
  aspect-ratio: 3 / 2;
}

.page-contact .contact-figure .figure-media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(0.82) contrast(0.98);
}

.page-contact .contact-figure .figure-cap {
  font-size: 13px;
  line-height: 1.7;
  color: var(--steel);
  padding: 10px 2px 0;
  border-top: 1px dashed var(--rule);
  margin-top: 8px;
}

/* ---------- 01 联系方式 ---------- */
.page-contact .contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

.page-contact .contact-card {
  background: var(--green-deep);
  border: 1px solid var(--green);
  border-top: 3px solid var(--brass);
  border-radius: 3px;
  padding: 4px 20px 10px;
  box-shadow: var(--pc-shadow);
  min-width: 0;
}

.page-contact .contact-card-head {
  font-size: 11.5px;
  letter-spacing: 0.24em;
  color: var(--brass-light);
  margin: 0;
  padding: 16px 0 6px;
  border-bottom: 1px solid rgba(216, 183, 120, 0.28);
}

.page-contact .contact-row {
  padding: 16px 0 18px;
  border-bottom: 1px dashed rgba(216, 183, 120, 0.3);
  min-width: 0;
}

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

.page-contact .contact-label {
  font-size: 12.5px;
  letter-spacing: 0.18em;
  color: var(--brass-light);
  margin: 0 0 9px;
}

.page-contact .contact-value {
  font-size: 15.5px;
  line-height: 1.5;
  color: #FBF7EE;
  margin: 0 0 9px;
  word-break: break-word;
}

.page-contact .contact-hint {
  font-size: 14px;
  line-height: 1.72;
  color: rgba(244, 239, 226, 0.76);
  margin: 0 0 13px;
  max-width: 42ch;
}

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

.page-contact .contact-actions .btn {
  font-size: 13.5px;
  padding: 8px 16px;
  border-radius: 2px;
  text-decoration: none;
}

.page-contact .copy-btn {
  font-family: var(--font-data);
  font-size: 13px;
  line-height: 1.4;
  padding: 8px 15px;
  border-radius: 2px;
  border: 1px solid var(--brass);
  background: transparent;
  color: var(--brass-light);
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease;
}

.page-contact .copy-btn:hover,
.page-contact .copy-btn:focus-visible {
  background: var(--brass);
  color: var(--green-deep);
  outline: none;
}

/* ---------- 02 受理范围 ---------- */
.page-contact .scope-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .scope-item {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-top: 1px dashed var(--rule);
}

.page-contact .scope-item:last-child {
  border-bottom: 1px dashed var(--rule);
}

.page-contact .scope-key {
  font-size: 13px;
  color: var(--brass);
  letter-spacing: 0.08em;
  padding-top: 5px;
}

.page-contact .scope-body {
  min-width: 0;
}

.page-contact .scope-body h3 {
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  margin: 0 0 6px;
  color: var(--ink);
}

.page-contact .scope-body p {
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--pc-soft);
  margin: 0;
  max-width: 52ch;
}

/* ---------- 03 提问模板 ---------- */
.page-contact .howto-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

.page-contact .step-list {
  list-style: none;
  counter-reset: pc-step;
  margin: 0;
  padding: 0;
}

.page-contact .step-item {
  counter-increment: pc-step;
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 12px;
  padding: 15px 0;
  border-bottom: 1px dashed var(--rule);
  min-width: 0;
}

.page-contact .step-item::before {
  content: counter(pc-step, decimal-leading-zero);
  font-family: var(--font-data);
  font-size: 14px;
  color: var(--brass);
  padding-top: 4px;
}

.page-contact .step-item h3 {
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 5px;
  color: var(--green);
}

.page-contact .step-item p {
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--pc-soft);
  margin: 0;
  max-width: 50ch;
}

.page-contact .template-card {
  background: var(--paper-lift);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--brass);
  padding: 18px 18px 20px;
  box-shadow: var(--pc-shadow);
  min-width: 0;
}

.page-contact .template-title {
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--brass);
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--rule);
}

.page-contact .template-line {
  font-family: var(--font-data);
  font-size: 13.5px;
  line-height: 2;
  color: var(--ink);
  margin: 0;
  word-break: break-word;
}

.page-contact .template-foot {
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--pc-soft);
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--rule);
}

/* ---------- 04 回复节奏 ---------- */
.page-contact .cadence {
  background: var(--paper-lift);
  border: 1px solid var(--rule);
  padding: 20px 18px 22px;
  box-shadow: var(--pc-shadow);
}

.page-contact .cadence-ruler {
  height: 20px;
  background-image: repeating-linear-gradient(
    to right,
    var(--rule) 0,
    var(--rule) 1px,
    transparent 1px,
    transparent 22px
  );
  border-bottom: 1px solid var(--brass-light);
}

.page-contact .cadence-track {
  position: relative;
  height: 8px;
  margin: 14px 0 22px;
  background: var(--rule);
  border-radius: 4px;
  overflow: hidden;
}

.page-contact .cadence-track::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 24%;
  background: linear-gradient(90deg, var(--brass-light), var(--brass));
}

.page-contact .cadence-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-contact .cadence-item {
  min-width: 0;
  padding-left: 12px;
  border-left: 2px solid var(--rule);
}

.page-contact .cadence-day {
  display: inline-block;
  font-size: 12.5px;
  color: var(--green);
  letter-spacing: 0.04em;
  padding-bottom: 4px;
  margin-bottom: 8px;
  border-bottom: 2px solid var(--brass-light);
}

.page-contact .cadence-item p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--pc-soft);
  margin: 0;
}

/* ---------- 05 自查清单 ---------- */
.page-contact .checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-contact .check-item {
  display: flex;
  align-items: flex-start;
  gap: 13px;
  background: var(--paper-lift);
  border: 1px solid var(--rule);
  padding: 15px 16px;
  min-width: 0;
}

.page-contact .check-box {
  appearance: none;
  -webkit-appearance: none;
  flex: none;
  width: 20px;
  height: 20px;
  margin: 2px 0 0;
  border: 1.5px solid var(--brass);
  border-radius: 2px;
  background: var(--paper);
  position: relative;
  cursor: pointer;
  transition: background 0.16s ease, border-color 0.16s ease;
}

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

.page-contact .check-box:checked {
  background: var(--brass);
  border-color: var(--brass);
}

.page-contact .check-box:checked::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 6px;
  height: 11px;
  border: solid var(--paper);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.page-contact .check-body {
  min-width: 0;
}

.page-contact .check-label {
  display: block;
  font-size: 15px;
  line-height: 1.72;
  color: var(--ink);
  cursor: pointer;
  margin-bottom: 6px;
}

.page-contact .check-box:checked ~ .check-body .check-label {
  color: var(--steel);
}

.page-contact .check-help {
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--pc-soft);
  margin: 0;
  max-width: 54ch;
}

/* ---------- 06 站点与备案 ---------- */
.page-contact .registry {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.page-contact .registry-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 15px 0;
  border-bottom: 1px dashed var(--rule);
  min-width: 0;
}

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

.page-contact .registry-key {
  font-family: var(--font-data);
  font-size: 12.5px;
  letter-spacing: 0.16em;
  color: var(--brass);
}

.page-contact .registry-val {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink);
  word-break: break-word;
}

.page-contact .registry-val.mono {
  font-family: var(--font-data);
  font-size: 14px;
  color: var(--green);
}

.page-contact .registry-foot {
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--steel);
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--rule);
  max-width: 56ch;
}

/* ---------- 桌面 ---------- */
@media (min-width: 760px) {
  .page-contact .contact-hero {
    padding: 26px 0 30px;
  }

  .page-contact .contact-hero h1 {
    font-size: 38px;
    line-height: 1.26;
    max-width: 24ch;
  }

  .page-contact .contact-lede {
    font-size: 16px;
  }

  .page-contact .ct-section {
    padding: 42px 0 8px;
    margin-top: 38px;
  }

  .page-contact .section-title {
    font-size: 26px;
  }

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

  .page-contact .registry-item {
    grid-template-columns: 120px minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }

  .page-contact .checklist {
    gap: 14px;
  }

  .page-contact .contact-figure--low {
    max-width: 780px;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    gap: 32px;
  }

  .page-contact .howto-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 34px;
  }

  .page-contact .contact-card {
    padding: 6px 26px 14px;
  }

  .page-contact .scope-item {
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 18px;
    padding: 20px 0;
  }

  .page-contact .step-item {
    grid-template-columns: 48px minmax(0, 1fr);
  }
}

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