.page-contact {
  --contact-block: clamp(44px, 7vw, 88px);
  --contact-muted: rgba(27, 50, 69, .74);
  background: var(--paper);
  color: var(--body-text);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-contact .intro {
  padding-block: clamp(30px, 5vw, 56px) clamp(40px, 6vw, 76px);
  border-bottom: 1px solid var(--rule);
}

.page-contact .intro__grid {
  align-items: center;
  row-gap: clamp(28px, 5vw, 48px);
}

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

.page-contact .intro .crumb {
  margin-bottom: 22px;
}

.page-contact .intro__title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(28px, 4.4vw, 50px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 8px 0 20px;
  max-width: 20em;
}

.page-contact .intro__lede {
  max-width: 40em;
  margin: 0 0 28px;
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.8;
}

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

.page-contact .intro__fact {
  display: flex;
  align-items: baseline;
  gap: 14px;
  background: var(--paper);
  padding: 11px 2px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--contact-muted);
}

.page-contact .intro__fact-no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--gold);
  flex: none;
}

.page-contact .intro__figure {
  position: relative;
  min-width: 0;
}

.page-contact .intro__figure::before {
  content: "";
  position: absolute;
  inset: -14% -10%;
  background: radial-gradient(circle at 62% 42%, rgba(46, 139, 184, .16), transparent 64%);
  pointer-events: none;
  z-index: 0;
}

.page-contact .intro__figure .figure-frame {
  position: relative;
  z-index: 1;
}

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

/* ---------- 主体骨架 ---------- */
.page-contact .body {
  padding-block: clamp(44px, 7vw, 92px) clamp(56px, 8vw, 112px);
}

.page-contact .body__grid {
  align-items: start;
  row-gap: clamp(40px, 6vw, 64px);
}

.page-contact .stack {
  display: flex;
  flex-direction: column;
  gap: var(--contact-block);
  min-width: 0;
}

/* ---------- 左侧数据带 ---------- */
.page-contact .rail {
  min-width: 0;
}

.page-contact .rail__inner {
  display: flex;
  flex-direction: column;
  gap: clamp(26px, 4vw, 40px);
  padding-top: 6px;
}

.page-contact .rail__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--cobalt);
  text-transform: uppercase;
  margin: 0;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--rule);
}

.page-contact .rail .anchor-num {
  border-left: 2px solid var(--lake-soft);
  padding-left: 16px;
}

.page-contact .rail .anchor-num__value {
  font-size: clamp(40px, 5vw, 56px);
}

.page-contact .rail .anchor-num__note {
  max-width: 26ch;
}

@media (min-width: 1024px) {
  .page-contact .rail {
    position: sticky;
    top: 108px;
    align-self: start;
  }
}

/* ---------- 区块头 ---------- */
.page-contact .block {
  min-width: 0;
  scroll-margin-top: 108px;
}

.page-contact .block .section-head {
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-contact .block .section-head__note {
  max-width: 46em;
}

/* ---------- 渠道面板 ---------- */
.page-contact .panel {
  position: relative;
  background: var(--sheet);
  border: 1px solid var(--rule);
  overflow: hidden;
}

.page-contact .panel::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--cobalt);
}

.page-contact .panel__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 18px clamp(18px, 3vw, 32px);
  border-bottom: 1px solid var(--rule);
}

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

@media (min-width: 640px) {
  .page-contact .panel__row {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 24px;
    align-items: baseline;
  }
}

.page-contact .panel__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--cobalt);
}

.page-contact .panel__value {
  min-width: 0;
  font-size: clamp(16px, 1.9vw, 20px);
  font-weight: 600;
  color: var(--ink);
  line-height: 1.5;
  word-break: break-word;
}

.page-contact .panel__foot {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--contact-muted);
  max-width: 52em;
}

/* ---------- 复制按钮 ---------- */
.page-contact .copy-btn {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  background: transparent;
  border: 0;
  padding: 0;
  margin: 0;
  font: inherit;
  color: inherit;
  text-align: left;
  cursor: pointer;
}

.page-contact .copy-btn__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(15px, 1.7vw, 20px);
  font-weight: 600;
  color: var(--ink);
  border-bottom: 1px dashed var(--rule);
  padding-bottom: 2px;
  word-break: break-all;
  transition: border-color .18s var(--ease);
}

.page-contact .copy-btn:hover .copy-btn__value {
  border-bottom-color: var(--gold);
}

.page-contact .copy-btn:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 4px;
}

.page-contact .copy-btn__hint {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--cobalt);
  background: rgba(169, 207, 224, .4);
  padding: 3px 9px;
  white-space: nowrap;
  transition: background .18s var(--ease), color .18s var(--ease);
}

.page-contact .copy-btn__hint::before {
  content: "";
  display: inline-block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--lake);
  margin-right: 7px;
  vertical-align: middle;
}

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

.page-contact .copy-btn:hover .copy-btn__hint::before {
  background: var(--ink);
}

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

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

.page-contact .scope-item + .scope-item {
  border-top: 1px solid var(--rule);
}

.page-contact .scope-item__tick {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--cobalt);
  padding-top: 5px;
}

.page-contact .scope-item__tick::before {
  content: "";
  width: 14px;
  height: 1px;
  background: var(--cobalt);
  flex: none;
}

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

.page-contact .scope-item__title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(18px, 2.1vw, 22px);
  line-height: 1.4;
  color: var(--ink);
  margin: 0 0 6px;
}

.page-contact .scope-item__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--contact-muted);
  max-width: 48em;
}

/* ---------- 不予受理 ---------- */
.page-contact .exclude {
  border-left: 2px solid var(--highland);
  background: linear-gradient(90deg, rgba(217, 113, 58, .09), rgba(217, 113, 58, 0) 72%);
  padding: 6px 0 6px clamp(16px, 3vw, 28px);
}

.page-contact .exclude__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-contact .exclude__item {
  display: flex;
  gap: 12px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--body-text);
}

.page-contact .exclude__item::before {
  content: "—";
  flex: none;
  font-family: var(--font-mono);
  color: var(--highland);
}

.page-contact .exclude__note {
  margin: 20px 0 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--contact-muted);
  max-width: 52em;
}

.page-contact .exclude__note a,
.page-contact .checker__note a,
.page-contact .legal-note a {
  color: var(--cobalt);
  text-decoration: none;
  border-bottom: 1px solid var(--lake-soft);
  padding-bottom: 1px;
  transition: border-color .18s var(--ease), color .18s var(--ease);
}

.page-contact .exclude__note a:hover,
.page-contact .checker__note a:hover,
.page-contact .legal-note a:hover {
  color: var(--lake);
  border-bottom-color: var(--gold);
}

.page-contact .exclude__note a:focus-visible,
.page-contact .checker__note a:focus-visible,
.page-contact .legal-note a:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

/* ---------- 准备清单 ---------- */
.page-contact .checker {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.page-contact .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact .filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 1;
  padding: 9px 14px;
  border: 1px solid var(--rule);
  background: var(--sheet);
  color: var(--cobalt);
  cursor: pointer;
  transition: background .18s var(--ease), border-color .18s var(--ease), color .18s var(--ease);
}

.page-contact .filter-btn:hover {
  border-color: var(--lake);
  color: var(--ink);
}

.page-contact .filter-btn:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.page-contact .filter-btn.is-active,
.page-contact .filter-btn[aria-pressed="true"] {
  background: var(--lake-soft);
  border-color: var(--lake);
  color: var(--ink);
}

.page-contact .filter-btn__count {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 11px;
  color: var(--cobalt);
  background: rgba(255, 255, 255, .74);
  border: 1px solid var(--rule);
  padding: 1px 6px;
}

.page-contact .filter-btn.is-active .filter-btn__count,
.page-contact .filter-btn[aria-pressed="true"] .filter-btn__count {
  color: var(--ink);
  border-color: var(--lake);
}

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

.page-contact .check-item {
  background: var(--sheet);
}

.page-contact .check-item__label {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 15px clamp(16px, 2.5vw, 26px);
  cursor: pointer;
  transition: background .18s var(--ease);
}

.page-contact .check-item__label:hover {
  background: rgba(169, 207, 224, .24);
}

.page-contact .check-item__box {
  appearance: none;
  -webkit-appearance: none;
  flex: none;
  width: 18px;
  height: 18px;
  margin: 2px 0 0;
  border: 1px solid var(--rule);
  background: var(--sheet);
  position: relative;
  cursor: pointer;
  transition: background .18s var(--ease), border-color .18s var(--ease);
}

.page-contact .check-item__box:hover {
  border-color: var(--lake);
}

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

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

.page-contact .check-item__box:checked::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border-right: 2px solid #fff;
  border-bottom: 2px solid #fff;
  transform: rotate(40deg);
}

.page-contact .check-item__body {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.page-contact .check-item__title {
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.5;
}

.page-contact .check-item__desc {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--contact-muted);
}

.page-contact .checker__note {
  margin: 18px 0 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--contact-muted);
  max-width: 52em;
}

/* ---------- 回复流程 ---------- */
.page-contact .flow-list {
  list-style: none;
  margin: 0 0 clamp(26px, 4vw, 40px);
  padding: 0;
}

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

.page-contact .flow-item + .flow-item {
  border-top: 1px solid var(--rule);
}

.page-contact .flow-item__no {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--gold);
  padding-top: 3px;
}

.page-contact .flow-item__body {
  min-width: 0;
}

.page-contact .flow-item__title {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 6px;
  line-height: 1.5;
}

.page-contact .flow-item__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--contact-muted);
  max-width: 48em;
}

.page-contact .flow-figure {
  margin: 0 0 18px;
}

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

.page-contact .flow__note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--contact-muted);
  max-width: 52em;
  padding-left: 14px;
  border-left: 2px solid var(--lake-soft);
}

/* ---------- 备案与站点性质 ---------- */
.page-contact .legal-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--rule);
}

.page-contact .legal-list__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
}

@media (min-width: 640px) {
  .page-contact .legal-list__row {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 24px;
    align-items: baseline;
  }
}

.page-contact .legal-list__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--cobalt);
}

.page-contact .legal-list__val {
  margin: 0;
  min-width: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--body-text);
  word-break: break-word;
}

.page-contact .legal-note {
  margin: 20px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--contact-muted);
  max-width: 54em;
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .copy-btn__value,
  .page-contact .copy-btn__hint,
  .page-contact .filter-btn,
  .page-contact .check-item__label,
  .page-contact .check-item__box,
  .page-contact .exclude__note a,
  .page-contact .checker__note a,
  .page-contact .legal-note a {
    transition: none;
  }
}
<<<END>>>