.page-contact .contact-shell {
  padding-block: 24px 96px;
}

.page-contact .contact-hero {
  border-top: 1px solid var(--hairline-strong);
  padding-top: 20px;
  margin-bottom: 40px;
}

.page-contact .contact-hero__index {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-contact .contact-hero h1 {
  margin: 0 0 16px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(28px, 7vw, 56px);
  line-height: 1.15;
  letter-spacing: 0.01em;
  color: var(--cream);
}

.page-contact .contact-hero__lead {
  margin: 0 0 24px;
  max-width: 62ch;
  font-family: var(--font-serif);
  font-size: clamp(15px, 2.4vw, 18px);
  line-height: 1.85;
  color: var(--warm);
}

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

.page-contact .contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--gap);
  align-items: start;
}

/* 左栏：渠道牌 */
.page-contact .contact-aside {
  min-width: 0;
}

.page-contact .channel-card {
  border: 1px solid var(--hairline-cyan);
  background: var(--ink-800);
  padding: 20px 18px;
  margin-bottom: 16px;
}

.page-contact .channel-card__label {
  margin: 0 0 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan-dim);
}

.page-contact .channel-block {
  border-top: 1px solid var(--hairline);
  padding: 16px 0 4px;
}

.page-contact .channel-block__kicker {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--rock);
}

.page-contact .channel-block__value {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(16px, 4.4vw, 21px);
  letter-spacing: -0.01em;
  line-height: 1.35;
  color: var(--cream);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .channel-block__hint {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 14px;
  line-height: 1.75;
  color: var(--warm);
}

.page-contact .channel-card__note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--hairline-strong);
  font-family: var(--font-serif);
  font-size: 13px;
  line-height: 1.75;
  color: var(--rock);
}

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

/* 右栏：问题分类 */
.page-contact .contact-main {
  min-width: 0;
}

.page-contact .issue-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--hairline);
}

.page-contact .issue {
  background: var(--ink-900);
  border-left: 3px solid var(--hairline-strong);
  padding: 20px 16px 22px;
  transition: background var(--dur-mid) var(--ease), border-color var(--dur-mid) var(--ease);
}

.page-contact .issue:hover,
.page-contact .issue:focus-within {
  background: var(--ink-800);
}

.page-contact .issue--schedule {
  border-left-color: var(--cyan);
}

.page-contact .issue--account {
  border-left-color: var(--amber);
}

.page-contact .issue--coop {
  border-left-color: var(--clay);
}

.page-contact .issue__label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--rock);
}

.page-contact .issue--schedule .issue__label {
  color: var(--cyan);
}

.page-contact .issue--account .issue__label {
  color: var(--amber);
}

.page-contact .issue--coop .issue__label {
  color: var(--clay);
}

.page-contact .issue__title {
  margin: 0 0 10px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(17px, 3.6vw, 21px);
  line-height: 1.4;
  letter-spacing: 0.01em;
  color: var(--cream);
}

.page-contact .issue__body {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 15px;
  line-height: 1.85;
  color: var(--warm);
}

.page-contact .issue__links {
  margin: 14px 0 0;
}

.page-contact .issue__link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--hairline-cyan);
  padding-bottom: 3px;
  transition: border-color var(--dur-mid) var(--ease), color var(--dur-mid) var(--ease);
}

.page-contact .issue__link:hover {
  border-bottom-color: var(--cyan);
  color: var(--cream);
}

.page-contact .issue__link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-contact .contact-shot {
  margin: 24px 0 0;
}

/* 信息清单 */
.page-contact .prep {
  margin-top: 40px;
  position: relative;
}

.page-contact .qfilter__input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.page-contact .qfilter__pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 16px;
}

.page-contact .qfilter__pill {
  display: inline-block;
  padding: 8px 12px;
  border: 1px solid var(--hairline-strong);
  background: transparent;
  color: var(--warm);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  cursor: pointer;
  user-select: none;
  transition: color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
}

.page-contact .qfilter__pill:hover {
  border-color: var(--hairline-cyan);
  color: var(--cream);
}

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

.page-contact .checklist__item {
  display: grid;
  grid-template-columns: 16px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 14px 14px 14px 12px;
  background: var(--ink-900);
  transition: opacity var(--dur-mid) var(--ease), background var(--dur-mid) var(--ease), box-shadow var(--dur-mid) var(--ease);
}

.page-contact .checklist__box {
  width: 14px;
  height: 14px;
  margin-top: 5px;
  border: 1px solid var(--hairline-strong);
  position: relative;
  transition: border-color var(--dur-fast) var(--ease);
}

.page-contact .checklist__box::after {
  content: "";
  position: absolute;
  inset: 3px;
  background: transparent;
  transition: background var(--dur-fast) var(--ease);
}

.page-contact .checklist__text {
  font-family: var(--font-serif);
  font-size: 15px;
  line-height: 1.8;
  color: var(--warm);
}

.page-contact .checklist__text b {
  font-family: var(--font-sans);
  font-weight: 700;
  color: var(--cream);
  margin-right: 4px;
}

.page-contact .prep__legal {
  margin: 16px 0 0;
  font-family: var(--font-serif);
  font-size: 13px;
  line-height: 1.8;
  color: var(--rock);
}

.page-contact .prep__legal a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--hairline-cyan);
}

.page-contact .prep__legal a:hover {
  color: var(--cream);
  border-bottom-color: var(--cyan);
}

.page-contact .prep__legal a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* 选中态：胶囊按钮 */
.page-contact #qf-all:checked ~ .qfilter__pills .qfilter__pill[for="qf-all"] {
  border-color: var(--hairline-cyan);
  background: var(--tint-cyan-strong);
  color: var(--cream);
}

.page-contact #qf-schedule:checked ~ .qfilter__pills .qfilter__pill[for="qf-schedule"] {
  border-color: var(--cyan);
  background: var(--cyan);
  color: var(--ink-900);
}

.page-contact #qf-account:checked ~ .qfilter__pills .qfilter__pill[for="qf-account"] {
  border-color: var(--amber);
  background: var(--amber);
  color: var(--ink-900);
}

.page-contact #qf-coop:checked ~ .qfilter__pills .qfilter__pill[for="qf-coop"] {
  border-color: var(--clay);
  background: var(--clay);
  color: var(--cream);
}

/* 选中态：焦点反馈 */
.page-contact #qf-all:focus-visible ~ .qfilter__pills .qfilter__pill[for="qf-all"],
.page-contact #qf-schedule:focus-visible ~ .qfilter__pills .qfilter__pill[for="qf-schedule"],
.page-contact #qf-account:focus-visible ~ .qfilter__pills .qfilter__pill[for="qf-account"],
.page-contact #qf-coop:focus-visible ~ .qfilter__pills .qfilter__pill[for="qf-coop"] {
  outline: 2px solid var(--cream);
  outline-offset: 2px;
}

/* 选中态：清单高亮 */
.page-contact #qf-schedule:checked ~ .checklist .checklist__item--schedule {
  background: var(--ink-800);
  box-shadow: inset 3px 0 0 var(--cyan);
}

.page-contact #qf-schedule:checked ~ .checklist .checklist__item--schedule .checklist__box {
  border-color: var(--cyan);
}

.page-contact #qf-schedule:checked ~ .checklist .checklist__item--schedule .checklist__box::after {
  background: var(--cyan);
}

.page-contact #qf-account:checked ~ .checklist .checklist__item--account {
  background: var(--tint-amber);
  box-shadow: inset 3px 0 0 var(--amber);
}

.page-contact #qf-account:checked ~ .checklist .checklist__item--account .checklist__box {
  border-color: var(--amber);
}

.page-contact #qf-account:checked ~ .checklist .checklist__item--account .checklist__box::after {
  background: var(--amber);
}

.page-contact #qf-coop:checked ~ .checklist .checklist__item--coop {
  background: var(--ink-800);
  box-shadow: inset 3px 0 0 var(--clay);
}

.page-contact #qf-coop:checked ~ .checklist .checklist__item--coop .checklist__box {
  border-color: var(--clay);
}

.page-contact #qf-coop:checked ~ .checklist .checklist__item--coop .checklist__box::after {
  background: var(--clay);
}

/* 未选中的组淡出 */
.page-contact #qf-schedule:checked ~ .checklist .checklist__item:not(.checklist__item--schedule):not(.checklist__item--all),
.page-contact #qf-account:checked ~ .checklist .checklist__item:not(.checklist__item--account):not(.checklist__item--all),
.page-contact #qf-coop:checked ~ .checklist .checklist__item:not(.checklist__item--coop):not(.checklist__item--all) {
  opacity: 0.4;
}

/* 处理节奏 */
.page-contact .rhythm {
  margin-top: 48px;
}

.page-contact .rhythm__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--hairline);
  margin-top: 16px;
}

.page-contact .rhythm__cell {
  background: var(--ink-900);
  padding: 20px 16px 24px;
  border-top: 2px solid var(--hairline-strong);
}

.page-contact .rhythm__cell--cyan {
  border-top-color: var(--cyan);
}

.page-contact .rhythm__cell--amber {
  border-top-color: var(--amber);
}

.page-contact .rhythm__cell--clay {
  border-top-color: var(--clay);
}

.page-contact .rhythm__kicker {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--rock);
}

.page-contact .rhythm__title {
  margin: 0 0 10px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(16px, 3.4vw, 20px);
  line-height: 1.4;
  color: var(--cream);
}

.page-contact .rhythm__body {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 15px;
  line-height: 1.85;
  color: var(--warm);
}

/* 地址与备案 */
.page-contact .registry {
  margin-top: 48px;
}

.page-contact .registry__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--hairline);
  margin-top: 16px;
}

.page-contact .registry__cell {
  background: var(--ink-800);
  padding: 18px 16px 20px;
}

.page-contact .registry__kicker {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--rock);
}

.page-contact .registry__value {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(15px, 3.6vw, 19px);
  line-height: 1.5;
  color: var(--cream);
  overflow-wrap: anywhere;
}

.page-contact .registry__value--text {
  font-family: var(--font-sans);
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-contact .registry__note {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 14px;
  line-height: 1.8;
  color: var(--warm);
}

.page-contact .registry__note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--hairline-cyan);
}

.page-contact .registry__note a:hover {
  color: var(--cream);
  border-bottom-color: var(--cyan);
}

.page-contact .registry__note a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

@media (min-width: 640px) {
  .page-contact .channel-card {
    padding: 24px 22px;
  }

  .page-contact .issue {
    padding: 24px 22px 26px;
  }

  .page-contact .checklist__item {
    padding: 16px 18px;
  }

  .page-contact .rhythm__cell,
  .page-contact .registry__cell {
    padding: 24px 22px 26px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 32px;
  }

  .page-contact .contact-aside {
    position: sticky;
    top: 120px;
  }

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

  .page-contact .registry__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 4fr);
  }

  .page-contact .registry__cell--note {
    grid-column: 1 / -1;
  }

  .page-contact .contact-hero {
    margin-bottom: 48px;
  }
}

@media (min-width: 1200px) {
  .page-contact .registry__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 3fr) minmax(0, 4fr);
  }

  .page-contact .registry__cell--note {
    grid-column: auto;
  }

  .page-contact .issue {
    padding: 26px 28px 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .issue,
  .page-contact .checklist__item,
  .page-contact .checklist__box,
  .page-contact .checklist__box::after,
  .page-contact .qfilter__pill,
  .page-contact .issue__link {
    transition: none;
  }
}