.page-contact {
  --c-rule: rgba(23, 26, 31, 0.14);
  --c-rule-soft: rgba(23, 26, 31, 0.08);
  --c-rule-ink: rgba(242, 246, 251, 0.18);
  --c-quiet: rgba(242, 246, 251, 0.62);
  background: var(--paper);
  color: var(--text);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(104px, 15vh, 176px) clamp(56px, 8vw, 96px);
  isolation: isolate;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(120% 92% at 84% 10%, rgba(47, 111, 181, 0.32), transparent 62%),
    radial-gradient(90% 70% at 6% 96%, rgba(226, 168, 30, 0.14), transparent 66%),
    repeating-linear-gradient(90deg, rgba(242, 246, 251, 0.05) 0 1px, transparent 1px 86px),
    repeating-linear-gradient(0deg, rgba(242, 246, 251, 0.05) 0 1px, transparent 1px 86px);
  pointer-events: none;
}

.page-contact .contact-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 4vw, 54px);
}

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

.page-contact .contact-hero .arc-overline {
  color: var(--c-quiet);
  margin-top: clamp(18px, 2.4vw, 30px);
}

.page-contact .contact-hero__title {
  margin: clamp(10px, 1.6vw, 18px) 0 0;
  color: var(--snow);
}

.page-contact .contact-hero__lede {
  margin-top: clamp(16px, 2vw, 24px);
  max-width: 32em;
  color: rgba(242, 246, 251, 0.84);
}

.page-contact .contact-hero__quick {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin: clamp(24px, 3vw, 36px) 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: rgba(242, 246, 251, 0.76);
}

.page-contact .contact-hero__quick li {
  display: flex;
  align-items: center;
  gap: 9px;
  max-width: 100%;
  word-break: break-word;
}

.page-contact .contact-hero__quick li::before {
  content: "";
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--flag-blue);
}

.page-contact .contact-hero__quick li:nth-child(2)::before {
  background: var(--flag-green);
}

.page-contact .contact-hero__quick li:nth-child(3)::before {
  background: var(--flag-yellow);
}

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

.page-contact .contact-hero__figure .arc-figure__img {
  border: 1px solid var(--c-rule-ink);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-contact .contact-hero__figure .arc-figure__caption {
  color: var(--c-quiet);
}

/* ---------- 通道索引 ---------- */

.page-contact .contact-channels__head {
  max-width: 46em;
}

.page-contact .contact-channels__lede {
  margin-top: 18px;
}

.page-contact .channel-nav {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: clamp(30px, 4vw, 52px);
}

.page-contact .channel-card {
  position: relative;
  display: block;
  min-width: 0;
  padding: clamp(20px, 2.6vw, 30px);
  padding-right: clamp(46px, 5vw, 64px);
  background: var(--paper-card);
  border: 1px solid var(--c-rule);
  border-top: 3px solid var(--flag-blue);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--text);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.page-contact .channel-card::after {
  content: "";
  position: absolute;
  top: clamp(20px, 2.4vw, 28px);
  right: clamp(20px, 2.4vw, 28px);
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--flag-blue);
  opacity: 0.35;
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-visible {
  transform: translateY(-3px);
  box-shadow: var(--shadow-float);
  border-color: rgba(23, 26, 31, 0.24);
}

.page-contact .channel-card:hover::after,
.page-contact .channel-card:focus-visible::after {
  opacity: 1;
  transform: scale(1.3);
}

.page-contact .channel-card--quote {
  border-top-color: var(--flag-red);
}

.page-contact .channel-card--quote::after {
  background: var(--flag-red);
}

.page-contact .channel-card--youth {
  border-top-color: var(--flag-green);
}

.page-contact .channel-card--youth::after {
  background: var(--flag-green);
}

.page-contact .channel-card--advice {
  border-top-color: var(--flag-yellow);
}

.page-contact .channel-card--advice::after {
  background: var(--flag-yellow);
}

.page-contact .channel-card__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--muted);
  margin-bottom: 14px;
}

.page-contact .channel-card__name {
  display: block;
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: clamp(1.15rem, 1.9vw, 1.45rem);
  line-height: 1.4;
  letter-spacing: 0.02em;
}

.page-contact .channel-card__desc {
  display: block;
  margin-top: 10px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
  max-width: 40em;
}

/* 通道说明面板 */

.page-contact .channel-panels {
  margin-top: clamp(24px, 3vw, 40px);
}

.page-contact .ch-panel {
  background: var(--paper-card);
  border: 1px solid var(--c-rule);
  border-radius: var(--radius-lg);
  padding: clamp(22px, 3vw, 40px);
  scroll-margin-top: 120px;
}

.page-contact .ch-panel__head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
  padding-bottom: clamp(12px, 1.6vw, 18px);
  border-bottom: 2px solid var(--c-rule);
}

.page-contact .ch-panel__no {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--flag-blue);
}

.page-contact .ch-panel--quote .ch-panel__no {
  color: var(--flag-red);
}

.page-contact .ch-panel--youth .ch-panel__no {
  color: var(--flag-green);
}

.page-contact .ch-panel--advice .ch-panel__no {
  color: #8a6410;
}

.page-contact .ch-panel__title {
  margin: 0;
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: clamp(1.3rem, 2.4vw, 1.8rem);
  line-height: 1.35;
}

.page-contact .ch-panel__spec {
  margin: 0;
  padding: 0;
}

.page-contact .ch-panel__spec > div {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px dashed var(--c-rule);
}

.page-contact .ch-panel__spec > div:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .ch-panel__spec dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-contact .ch-panel__spec dd {
  margin: 0;
  font-size: 16px;
  line-height: 1.82;
  color: var(--text);
  max-width: 40em;
}

/* ---------- 联系信息登记栏 ---------- */

.page-contact .contact-board__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 4vw, 58px);
}

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

.page-contact .contact-board .arc-overline {
  color: var(--c-quiet);
}

.page-contact .contact-board .arc-title {
  color: var(--snow);
  margin-top: 12px;
}

.page-contact .contact-board__lede {
  margin-top: 18px;
  max-width: 34em;
  color: rgba(242, 246, 251, 0.82);
}

.page-contact .contact-board__rows {
  margin: clamp(24px, 3vw, 34px) 0 0;
  border-top: 1px solid var(--c-rule-ink);
}

.page-contact .contact-board__rows > div {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 15px 0;
  border-bottom: 1px solid var(--c-rule-ink);
}

.page-contact .contact-board__rows dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--c-quiet);
}

.page-contact .contact-board__rows dd {
  margin: 0;
  min-width: 0;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: var(--snow);
  font-variant-numeric: tabular-nums;
  word-break: break-word;
}

.page-contact .contact-board__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: clamp(22px, 2.6vw, 30px);
}

.page-contact .contact-board__note {
  margin: 18px 0 0;
  max-width: 36em;
  font-size: 13px;
  line-height: 1.8;
  color: var(--c-quiet);
}

.page-contact .contact-board__figure {
  margin: 0;
  min-width: 0;
}

.page-contact .contact-board__figure .arc-figure__img {
  border: 1px solid var(--c-rule-ink);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-contact .contact-board__figure .arc-figure__caption {
  color: var(--c-quiet);
}

/* ---------- 表单说明 ---------- */

.page-contact .contact-spec__lede {
  margin-top: 18px;
  max-width: 42em;
}

.page-contact .contact-spec__table {
  min-width: 620px;
  margin-top: clamp(24px, 3vw, 36px);
}

.page-contact .contact-spec__table th,
.page-contact .contact-spec__table td {
  font-size: 15px;
  line-height: 1.72;
  padding: 13px 14px;
  vertical-align: top;
}

.page-contact .contact-spec__table tbody th {
  font-weight: 600;
  white-space: nowrap;
}

.page-contact .contact-spec__table td:last-child {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--muted);
}

.page-contact .contact-spec__note {
  margin: clamp(20px, 2.4vw, 28px) 0 0;
  max-width: 46em;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .contact-inline-link {
  color: var(--flag-blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .contact-inline-link:hover,
.page-contact .contact-inline-link:focus-visible {
  color: var(--flag-red);
}

/* ---------- 回复节奏 ---------- */

.page-contact .contact-rhythm__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
}

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

.page-contact .contact-rhythm__intro .arc-prose {
  margin-top: 18px;
  max-width: 34em;
}

.page-contact .contact-rhythm__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--c-rule);
}

.page-contact .contact-rhythm__list li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: 18px 0;
  border-bottom: 1px solid var(--c-rule);
}

.page-contact .contact-rhythm__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-contact .contact-rhythm__val {
  font-size: 16px;
  line-height: 1.82;
  color: var(--text);
}

/* ---------- 服务地区折叠 ---------- */

.page-contact .region-fold {
  margin-top: clamp(32px, 4vw, 52px);
  background: var(--paper-card);
  border: 1px solid var(--c-rule);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-contact .region-fold > summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px clamp(18px, 2.4vw, 28px);
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--text);
}

.page-contact .region-fold > summary::-webkit-details-marker {
  display: none;
}

.page-contact .region-fold > summary::before {
  content: "";
  flex: none;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--flag-blue);
  border-bottom: 2px solid var(--flag-blue);
  transform: rotate(-45deg);
  transition: transform 0.3s ease;
}

.page-contact .region-fold[open] > summary::before {
  transform: rotate(45deg);
}

.page-contact .region-fold__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 2.6vw, 34px);
  padding: 4px clamp(18px, 2.4vw, 28px) clamp(22px, 2.8vw, 32px);
  border-top: 1px solid var(--c-rule-soft);
}

.page-contact .region-fold__title {
  margin: 0 0 12px;
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  color: var(--text);
}

.page-contact .region-fold__col p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .region-fold__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .region-fold__list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .region-fold__list li + li {
  margin-top: 6px;
}

.page-contact .region-fold__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 8px;
  height: 2px;
  background: var(--flag-red);
}

/* ---------- 相关页面 ---------- */

.page-contact .contact-more {
  padding-block: clamp(44px, 6vw, 76px);
}

.page-contact .contact-more__title {
  margin: 0 0 clamp(18px, 2.2vw, 26px);
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: clamp(1.15rem, 2.1vw, 1.55rem);
  letter-spacing: 0.02em;
  color: var(--text);
}

.page-contact .contact-more__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--c-rule);
  border: 1px solid var(--c-rule);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-contact .contact-more__link {
  display: block;
  padding: 18px clamp(16px, 2.2vw, 24px);
  background: var(--paper-card);
  color: var(--text);
  font-size: 15px;
  line-height: 1.7;
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease;
}

.page-contact .contact-more__link:hover,
.page-contact .contact-more__link:focus-visible {
  background: var(--paper-2);
  color: var(--flag-blue);
}

/* ---------- 通道切换（渐进增强） ---------- */

@keyframes contactPanelIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@supports selector(:has(*)) {
  .page-contact .ch-panel {
    display: none;
  }

  .page-contact .ch-panel:target,
  .page-contact .channel-panels:not(:has(.ch-panel:target)) .ch-panel:first-of-type {
    display: block;
    animation: contactPanelIn 0.4s ease both;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ch-panel,
  .page-contact .channel-card,
  .page-contact .region-fold > summary::before {
    animation: none !important;
    transition: none !important;
  }

  .page-contact .channel-card:hover,
  .page-contact .channel-card:focus-visible {
    transform: none;
  }
}

/* ---------- 响应式 ---------- */

@media (min-width: 620px) {
  .page-contact .ch-panel__spec > div {
    grid-template-columns: 116px minmax(0, 1fr);
    gap: 6px 24px;
    align-items: baseline;
  }

  .page-contact .ch-panel__spec dt {
    padding-top: 3px;
  }

  .page-contact .contact-board__rows > div {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 6px 24px;
    align-items: baseline;
  }

  .page-contact .contact-board__rows dt {
    padding-top: 3px;
  }

  .page-contact .contact-rhythm__list li {
    grid-template-columns: 128px minmax(0, 1fr);
    gap: 8px 24px;
    align-items: baseline;
  }

  .page-contact .contact-rhythm__key {
    padding-top: 4px;
  }
}

@media (min-width: 760px) {
  .page-contact .channel-nav {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 16px;
  }

  .page-contact .channel-card--fix {
    grid-column: span 7;
  }

  .page-contact .channel-card--quote {
    grid-column: span 5;
  }

  .page-contact .channel-card--youth {
    grid-column: span 5;
  }

  .page-contact .channel-card--advice {
    grid-column: span 7;
  }

  .page-contact .contact-more__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .region-fold__body {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 920px) {
  .page-contact .contact-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
  }

  .page-contact .contact-rhythm__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-contact .contact-rhythm__list {
    margin-top: 6px;
  }
}

@media (min-width: 980px) {
  .page-contact .contact-board__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-contact .contact-board__figure {
    margin-top: clamp(24px, 4vw, 56px);
  }
}
<<<END>>>