.page-contact {
  --rail-w: 340px;
  padding-block: clamp(18px, 3vw, 34px) clamp(64px, 9vw, 120px);
}

.page-contact .breadcrumb {
  margin-bottom: clamp(18px, 3vw, 30px);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding-bottom: clamp(26px, 4vw, 46px);
  border-bottom: 1px solid var(--grid-soft);
  isolation: isolate;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  top: -46%;
  right: -12%;
  width: min(640px, 72vw);
  aspect-ratio: 1 / 1;
  background: radial-gradient(circle at center, rgba(41, 242, 214, 0.15), rgba(21, 27, 63, 0) 68%);
  pointer-events: none;
}

.page-contact .contact-hero .display {
  font-size: clamp(38px, 8.6vw, 84px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  margin: 0.28em 0 0.24em;
  max-width: 12ch;
}

.page-contact .contact-hero .lede {
  max-width: 62ch;
  margin: 0;
}

/* ---------- 渠道信息图 ---------- */
.page-contact .contact-figure {
  margin: clamp(26px, 4vw, 44px) 0 0;
  border: 1px solid var(--grid-soft);
  background: linear-gradient(135deg, rgba(21, 27, 63, 0.55), rgba(6, 48, 46, 0.45));
}

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

/* ---------- 双栏骨架 ---------- */
.page-contact .contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  margin-top: clamp(30px, 5vw, 60px);
  align-items: start;
}

/* ---------- 左侧渠道卡 ---------- */
.page-contact .contact-rail {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-contact .rail-title {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--slate);
}

.page-contact .rail-sub {
  margin: 0 0 4px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

.page-contact .channel-card {
  display: grid;
  gap: 7px;
  padding: 18px 20px;
  border: 1px solid var(--grid-soft);
  background: var(--frost);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  transition: transform 0.24s var(--ease), border-color 0.24s var(--ease), background-color 0.24s var(--ease);
}

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  transform: scale(1.02);
  border-color: rgba(41, 242, 214, 0.55);
  background: var(--frost-strong);
}

.page-contact .channel-label {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-contact .channel-value {
  font-size: 16px;
  line-height: 1.55;
  color: var(--fog);
  word-break: break-word;
}

.page-contact .channel-value.mono {
  font-size: 15px;
  letter-spacing: 0.01em;
}

.page-contact .channel-hint {
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--slate);
}

.page-contact .rail-note {
  margin: 4px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--orange);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 右侧内容流 ---------- */
.page-contact .contact-flow {
  display: grid;
  gap: clamp(36px, 5vw, 62px);
  align-content: start;
  min-width: 0;
}

.page-contact .flow-block {
  padding-top: clamp(18px, 3vw, 28px);
  border-top: 1px solid var(--grid-soft);
}

.page-contact .flow-block .headline {
  margin: 0.34em 0 0.5em;
  max-width: 22ch;
  font-size: clamp(23px, 4.2vw, 38px);
  line-height: 1.2;
}

.page-contact .flow-block .prose {
  max-width: 68ch;
  margin: 0 0 20px;
}

.page-contact .flow-block .prose a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(41, 242, 214, 0.4);
}

.page-contact .flow-block .prose a:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 清单 ---------- */
.page-contact .check-list {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .check-list li {
  position: relative;
  padding-left: 26px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--fog);
}

.page-contact .check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.58em;
  width: 10px;
  height: 10px;
  border: 1px solid var(--cyan);
  background: rgba(41, 242, 214, 0.18);
}

/* ---------- 事由清单 ---------- */
.page-contact .topic-list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  border-top: 1px solid var(--grid-soft);
}

.page-contact .topic-list li {
  padding: 15px 0;
  border-bottom: 1px solid var(--grid-soft);
  font-size: 15px;
  line-height: 1.75;
  color: var(--fog);
}

.page-contact .topic-list .mono {
  margin-right: 10px;
  font-size: 14px;
  color: var(--orange);
}

/* ---------- 反馈编号清单 ---------- */
.page-contact .feedback-list {
  list-style: none;
  counter-reset: fb;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 13px;
}

.page-contact .feedback-list li {
  counter-increment: fb;
  position: relative;
  padding-left: 40px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--fog);
}

.page-contact .feedback-list li::before {
  content: counter(fb, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.12em;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.05em;
  color: var(--orange);
}

/* ---------- 可复制模板 ---------- */
.page-contact .template-block {
  margin: 0 0 12px;
  padding: 18px 20px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 2;
  color: var(--fog);
  white-space: pre-wrap;
  word-break: break-word;
  overflow-x: auto;
  background: rgba(6, 48, 46, 0.42);
  border: 1px solid var(--grid-soft);
  border-left: 3px solid var(--orange);
}

.page-contact .template-block::selection,
.page-contact .template-block *::selection {
  background: rgba(255, 122, 47, 0.35);
}

/* ---------- 备案细线表格 ---------- */
.page-contact .filing-table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 clamp(22px, 4vw, 34px);
  font-size: 15px;
}

.page-contact .filing-table th {
  width: 44%;
  padding: 14px 14px 14px 0;
  text-align: left;
  vertical-align: top;
  font-weight: 500;
  color: var(--slate);
  border-bottom: 1px solid var(--grid-soft);
}

.page-contact .filing-table td {
  padding: 14px 0;
  vertical-align: top;
  color: var(--fog);
  border-bottom: 1px solid var(--grid-soft);
  word-break: break-word;
}

.page-contact .filing-table td.mono {
  font-size: 14px;
  color: var(--cyan);
}

/* ---------- 城市纹理图 ---------- */
.page-contact .media.is-city {
  aspect-ratio: 10 / 7;
  margin: 0;
  border: 1px solid var(--grid-soft);
  background: rgba(21, 27, 63, 0.4);
}

/* ---------- 桌面与平板 ---------- */
@media (min-width: 640px) {
  .page-contact .filing-table th {
    width: 30%;
  }
}

@media (min-width: 1000px) {
  .page-contact .contact-layout {
    grid-template-columns: var(--rail-w) minmax(0, 1fr);
    gap: clamp(44px, 6vw, 80px);
  }

  .page-contact .contact-rail {
    position: sticky;
    top: 104px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card {
    transition: none;
  }

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