.page-contact {
  --pc-jade-bar: 3px;
  --pc-rail-w: 158px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-intro {
  padding-block: clamp(28px, 6.5vw, 68px) clamp(20px, 3.4vw, 34px);
}

.page-contact .contact-intro .breadcrumbs {
  margin-bottom: clamp(16px, 2.6vw, 26px);
}

.page-contact .contact-intro__title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(27px, 4.6vw, 44px);
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--white);
  max-width: 17ch;
  margin: 12px 0 0;
}

.page-contact .contact-intro__lede {
  max-width: 44ch;
  margin: 20px 0 0;
  font-size: clamp(15.5px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 顶部窄幅氛围图 ---------- */
.page-contact .contact-banner {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: var(--ink-deep);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .contact-banner img {
  display: block;
  width: 100%;
  height: clamp(168px, 23vw, 300px);
  object-fit: cover;
  object-position: center 42%;
  filter: saturate(0.82) brightness(0.76);
}

.page-contact .contact-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(5, 28, 22, 0.88) 0%, rgba(5, 28, 22, 0.3) 48%, rgba(5, 28, 22, 0.74) 100%),
    linear-gradient(180deg, rgba(7, 35, 28, 0.4) 0%, rgba(7, 35, 28, 0) 40%, rgba(5, 28, 22, 0.55) 100%);
  pointer-events: none;
}

.page-contact .contact-banner__cap {
  position: absolute;
  left: var(--gut);
  bottom: 13px;
  z-index: 2;
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--gold-l);
  text-transform: uppercase;
}

/* ---------- 主体网格 ---------- */
.page-contact .contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 5vw, 52px);
  padding-block: clamp(34px, 6vw, 70px) clamp(40px, 6vw, 78px);
}

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

@media (min-width: 980px) {
  .page-contact .contact-layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 3.6fr);
    column-gap: clamp(34px, 5vw, 88px);
  }
}

/* ---------- 右侧纵向编号线索 ---------- */
.page-contact .contact-rail {
  display: none;
}

@media (min-width: 980px) {
  .page-contact .contact-rail {
    display: block;
    align-self: start;
    position: sticky;
    top: calc(var(--header-h) + 28px);
    padding-left: 18px;
    border-left: 1px solid var(--line-soft);
    max-width: 150px;
  }
}

.page-contact .rail-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: rgba(154, 167, 155, 0.55);
}

.page-contact .rail-list li {
  position: relative;
  padding-left: 15px;
}

.page-contact .rail-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 8px;
  height: 1px;
  background: var(--line);
}

.page-contact .rail-list li:first-child,
.page-contact .rail-list li:last-child {
  color: var(--gold-l);
}

.page-contact .rail-list li:first-child::before,
.page-contact .rail-list li:last-child::before {
  width: 12px;
  background: var(--gold);
}

.page-contact .rail-label {
  display: block;
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--gold-d);
}

/* ---------- 区块骨架 ---------- */
.page-contact .contact-sec {
  padding-block: clamp(26px, 4vw, 44px);
  border-top: 1px solid var(--line-soft);
}

.page-contact .contact-sec:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .contact-sec .section-head {
  margin-bottom: clamp(16px, 2.4vw, 26px);
}

.page-contact .prose {
  max-width: 46ch;
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(244, 246, 241, 0.86);
}

.page-contact .prose:last-child {
  margin-bottom: 0;
}

.page-contact .prose a {
  color: var(--gold-l);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: border-color 0.2s ease, color 0.2s ease;
}

.page-contact .prose a:hover {
  color: var(--white);
  border-bottom-color: var(--gold);
}

.page-contact .contact-sec .btn {
  margin-top: 8px;
}

/* ---------- 通道卡片 ---------- */
.page-contact .chan-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-contact .chan-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: clamp(18px, 2.4vw, 26px);
  background: linear-gradient(180deg, rgba(14, 59, 49, 0.42) 0%, rgba(7, 35, 28, 0.16) 100%);
  border: 1px solid rgba(154, 167, 155, 0.3);
  border-left: var(--pc-jade-bar) solid var(--jade);
  transition: box-shadow 0.22s ease, border-color 0.22s ease;
}

.page-contact .chan-card:hover,
.page-contact .chan-card:focus-within {
  border-color: var(--gold);
  border-left-color: var(--jade);
  box-shadow: inset 0 0 0 1px rgba(200, 162, 60, 0.42);
}

.page-contact .chan-card__kicker {
  margin: 0 0 10px;
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--gold-d);
}

.page-contact .chan-card__title {
  margin: 0 0 12px;
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--white);
}

.page-contact .chan-card__value {
  display: block;
  margin: 0 0 16px;
  padding-bottom: 13px;
  border-bottom: 1px solid var(--line-soft);
  font-size: 15px;
  letter-spacing: 0.02em;
  color: var(--gold-l);
  overflow-wrap: anywhere;
}

.page-contact .chan-card .prose {
  margin-bottom: 16px;
  font-size: 15px;
  line-height: 1.82;
  max-width: none;
}

.page-contact .chan-list {
  list-style: none;
  margin: auto 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-contact .chan-list li {
  position: relative;
  padding-left: 15px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

.page-contact .chan-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 1px;
  background: var(--gold-m);
}

@media (min-width: 680px) {
  .page-contact .chan-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1px;
    background: var(--line);
  }

  .page-contact .chan-card {
    border-color: transparent;
    box-shadow: none;
  }

  .page-contact .chan-card:hover,
  .page-contact .chan-card:focus-within {
    border-color: transparent;
    border-left-color: var(--jade);
    box-shadow: inset 0 0 0 1px var(--gold);
  }
}

/* ---------- 信函地址 ---------- */
.page-contact .letter-block {
  max-width: 520px;
  margin-bottom: 18px;
  border: 1px solid var(--line);
  background: rgba(14, 59, 49, 0.28);
}

.page-contact .letter-item {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 14px;
  padding: 14px 16px;
}

.page-contact .letter-item + .letter-item {
  border-top: 1px solid var(--line-soft);
}

.page-contact .letter-item__label {
  padding-top: 4px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--gold-d);
}

.page-contact .letter-item__value {
  font-size: 15px;
  line-height: 1.65;
  color: var(--white);
  overflow-wrap: anywhere;
}

/* ---------- 四步处理流程 ---------- */
.page-contact .handling {
  display: grid;
  gap: 20px;
}

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

.page-contact .step {
  position: relative;
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 14px;
  padding: 0 0 24px;
  outline: none;
}

.page-contact .step:last-child {
  padding-bottom: 0;
}

.page-contact .step::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 24px;
  bottom: 4px;
  width: 1px;
  background: linear-gradient(180deg, var(--line) 0%, var(--line-soft) 100%);
}

.page-contact .step:last-child::before {
  display: none;
}

.page-contact .step:focus-visible {
  box-shadow: 0 0 0 1px var(--gold);
  background: var(--wash);
}

.page-contact .step__num {
  position: relative;
  z-index: 1;
  align-self: start;
  width: 26px;
  padding: 2px 0 3px;
  background: var(--ink);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--gold);
}

.page-contact .step__title {
  margin: 0 0 6px;
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 700;
  color: var(--white);
}

.page-contact .step__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--muted);
}

.page-contact .handling-media {
  margin: 0;
  max-width: 220px;
  border: 1px solid var(--line-soft);
}

.page-contact .handling-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  filter: saturate(0.78) brightness(0.8);
}

.page-contact .handling-media__cap {
  display: block;
  padding: 8px 10px;
  border-top: 1px solid var(--line-soft);
  background: rgba(14, 59, 49, 0.32);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

@media (min-width: 560px) {
  .page-contact .handling {
    grid-template-columns: minmax(0, 1fr) var(--pc-rail-w);
    align-items: start;
    gap: 24px;
  }

  .page-contact .handling-media {
    max-width: none;
  }
}

/* ---------- 常见咨询方向：标签页 ---------- */
.page-contact .ask-tabs {
  border-top: 1px solid var(--line-soft);
  padding-top: 18px;
}

.page-contact .ask-tablist {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 18px;
}

.page-contact .ask-tab {
  appearance: none;
  border-radius: 0;
  padding: 7px 13px;
  font-family: var(--font-sans);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--muted);
  background: transparent;
  border: 1px solid rgba(154, 167, 155, 0.32);
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.page-contact .ask-tab:hover {
  color: var(--gold-l);
  border-color: var(--gold);
}

.page-contact .ask-tab[aria-selected="true"] {
  color: var(--gold-l);
  border-color: var(--gold);
  background: var(--wash);
  box-shadow: inset 0 -3px 0 0 var(--gold);
}

.page-contact .ask-tab:focus-visible {
  outline: 1px solid var(--gold);
  outline-offset: 2px;
}

.page-contact .ask-panel {
  padding: clamp(16px, 2.4vw, 22px);
  border-left: var(--pc-jade-bar) solid var(--jade);
  background: rgba(14, 59, 49, 0.3);
}

.page-contact .ask-panel[hidden] {
  display: none;
}

.page-contact .ask-panel + .ask-panel {
  margin-top: 12px;
}

.page-contact .ask-list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .ask-list li {
  position: relative;
  padding-left: 16px;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(244, 246, 241, 0.9);
}

.page-contact .ask-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 1px;
  background: var(--gold);
}

.page-contact .ask-prep {
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .ask-prep .tag {
  margin-right: 8px;
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .chan-card,
  .page-contact .ask-tab,
  .page-contact .prose a {
    transition: none;
  }
}