/* ===== 联系我们 · 页面专属样式 ===== */
.page-contact {
  --pc-shell: min(100% - 40px, var(--container-max));
  --pc-gap: clamp(18px, 2.4vw, 28px);
  --pc-cut: var(--cut);
  background-color: var(--c-night);
  color: var(--c-warm);
}

/* 切角面板工具 */
.page-contact .pc-cut {
  clip-path: polygon(
    var(--pc-cut) 0,
    100% 0,
    100% calc(100% - var(--pc-cut)),
    calc(100% - var(--pc-cut)) 100%,
    0 100%,
    0 var(--pc-cut)
  );
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(20px, 3vw, 34px) clamp(28px, 4vw, 48px);
  background-color: var(--c-night);
  background-image:
    linear-gradient(rgba(91, 107, 133, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(91, 107, 133, 0.07) 1px, transparent 1px),
    radial-gradient(110% 80% at 88% 0%, rgba(35, 224, 200, 0.11), transparent 58%),
    radial-gradient(90% 70% at 4% 6%, rgba(255, 106, 26, 0.1), transparent 62%);
  background-size: 72px 72px, 72px 72px, auto, auto;
}

.page-contact .pc-hero-grid {
  width: var(--pc-shell);
  margin-inline: auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 32px);
  align-items: center;
}

.page-contact .pc-crumbs {
  grid-column: 1 / -1;
}

.page-contact .pc-crumbs ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-muted);
}

.page-contact .pc-crumbs li + li::before {
  content: "/";
  margin-right: 10px;
  color: var(--c-line);
}

.page-contact .pc-crumbs a {
  color: var(--c-muted);
  text-decoration: none;
}

.page-contact .pc-crumbs a:hover {
  color: var(--c-orange);
}

.page-contact .pc-hero-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 5.4vw, 56px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 14px 0 0;
  color: var(--c-warm);
}

.page-contact .pc-lede {
  margin: 18px 0 0;
  max-width: 52ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--c-muted);
}

.page-contact .pc-hero-tags {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .pc-hero-tags li {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  padding: 7px 12px;
  color: var(--c-warm);
  background: rgba(22, 34, 58, 0.78);
  box-shadow: inset 0 0 0 1px var(--edge);
}

.page-contact .pc-hero-figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: var(--c-stand);
}

.page-contact .pc-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-contact .pc-hero-figure::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 2px;
  background: linear-gradient(90deg, var(--c-orange), var(--c-cyan) 58%, transparent);
}

/* ---------- 左右分栏 ---------- */
.page-contact .pc-split {
  width: var(--pc-shell);
  margin-inline: auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pc-gap);
  padding-block: clamp(24px, 3vw, 40px) clamp(36px, 4.5vw, 64px);
}

.page-contact .pc-col {
  display: grid;
  gap: var(--pc-gap);
  align-content: start;
  min-width: 0;
}

/* ---------- 面板 ---------- */
.page-contact .pc-block {
  position: relative;
  padding: clamp(20px, 2.6vw, 30px);
  background: linear-gradient(158deg, rgba(22, 34, 58, 0.94), rgba(14, 23, 38, 0.94));
  box-shadow: inset 0 0 0 1px var(--edge), 0 20px 48px -34px rgba(0, 0, 0, 0.95);
}

.page-contact .pc-block::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--c-orange), rgba(255, 106, 26, 0.12) 68%, transparent);
}

.page-contact .pc-block-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--c-orange);
  margin-bottom: 10px;
}

.page-contact .bk-h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 2.6vw, 30px);
  line-height: 1.26;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--c-warm);
}

.page-contact .pc-block-lede {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-muted);
}

/* ---------- 通道卡片 ---------- */
.page-contact .pc-chan-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: 20px;
}

.page-contact .pc-chan {
  position: relative;
  display: grid;
  gap: 12px;
  align-content: start;
  padding: 20px 18px 20px;
  background: rgba(7, 11, 18, 0.62);
  box-shadow: inset 0 0 0 1px var(--edge-soft);
}

.page-contact .pc-chan-stripe {
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
}

.page-contact .pc-chan--mail .pc-chan-stripe {
  background: linear-gradient(90deg, var(--c-cyan), transparent 88%);
}

.page-contact .pc-chan--line .pc-chan-stripe {
  background: linear-gradient(90deg, var(--c-orange), transparent 88%);
}

.page-contact .pc-chan-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--c-muted);
  padding: 4px 9px;
  box-shadow: inset 0 0 0 1px var(--edge);
}

.page-contact .pc-chan-head h3 {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  margin: 10px 0 0;
  color: var(--c-warm);
}

.page-contact .pc-chan-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-muted);
}

.page-contact .pc-diff {
  list-style: none;
  margin: 0;
  padding: 14px 0 0;
  border-top: 1px solid var(--edge-soft);
  display: grid;
  gap: 9px;
}

.page-contact .pc-diff li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.65;
}

.page-contact .pc-diff li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 7px;
  height: 7px;
  transform: rotate(45deg);
}

.page-contact .pc-diff li[data-kind="yes"] {
  color: var(--c-warm);
}

.page-contact .pc-diff li[data-kind="yes"]::before {
  background: var(--c-cyan);
}

.page-contact .pc-diff li[data-kind="no"] {
  color: var(--c-muted);
}

.page-contact .pc-diff li[data-kind="no"]::before {
  background: var(--c-line);
}

/* 折叠面板微调 */
.page-contact .pc-fold {
  margin-top: 20px;
  padding-top: 6px;
  border-top: 1px solid var(--edge-soft);
}

.page-contact .pc-fold .bk-fold__body p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-muted);
}

/* ---------- 联系信息卡 ---------- */
.page-contact .pc-block--info {
  position: relative;
  overflow: hidden;
  padding: 0;
  min-height: 280px;
}

.page-contact .pc-info-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-contact .pc-info-bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.24;
}

.page-contact .pc-info-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(7, 11, 18, 0.94) 0%, rgba(14, 23, 38, 0.86) 55%, rgba(11, 46, 58, 0.76) 100%);
}

.page-contact .pc-info-body {
  position: relative;
  z-index: 1;
  padding: clamp(20px, 2.6vw, 30px);
}

.page-contact .pc-info-list {
  margin: 18px 0 0;
  padding: 0;
  display: grid;
}

.page-contact .pc-info-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 14px 0;
  border-top: 1px solid var(--edge-soft);
}

.page-contact .pc-info-row:last-child {
  border-bottom: 1px solid var(--edge-soft);
}

.page-contact .pc-info-row dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-muted);
}

.page-contact .pc-info-row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(14px, 1.7vw, 16px);
  color: var(--c-warm);
  word-break: break-word;
}

.page-contact .pc-info-note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--c-muted);
}

/* ---------- 右侧：回复预期与反馈清单 ---------- */
.page-contact .pc-expect {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 14px;
  padding-top: 18px;
  border-top: 1px solid var(--edge-soft);
}

.page-contact .pc-expect-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(52px, 8vw, 76px);
  line-height: 0.9;
  color: var(--c-orange);
}

.page-contact .pc-expect-copy {
  display: grid;
  gap: 6px;
  min-width: 0;
}

.page-contact .pc-expect-copy strong {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--c-warm);
}

.page-contact .pc-expect-copy span {
  font-size: 13px;
  line-height: 1.65;
  color: var(--c-muted);
}

.page-contact .pc-expect-note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--c-muted);
}

.page-contact .pc-check {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
}

.page-contact .pc-check li {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 13px 0;
  border-top: 1px solid var(--edge-soft);
  font-size: 15px;
  line-height: 1.65;
  color: var(--c-warm);
}

.page-contact .pc-check li:last-child {
  border-bottom: 1px solid var(--edge-soft);
}

.page-contact .pc-check-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-cyan);
}

/* ---------- 满宽合作带 ---------- */
.page-contact .pc-collab {
  position: relative;
  overflow: hidden;
  padding-block: clamp(36px, 5vw, 68px);
  background-color: var(--c-deep);
  background-image:
    radial-gradient(80% 120% at 90% 0%, rgba(35, 224, 200, 0.14), transparent 62%),
    linear-gradient(120deg, var(--c-deep) 0%, var(--c-stand) 48%, var(--c-night) 100%);
  border-top: 1px solid var(--edge-soft);
  border-bottom: 1px solid var(--edge-soft);
}

.page-contact .pc-collab-inner {
  width: var(--pc-shell);
  margin-inline: auto;
}

.page-contact .pc-collab-head {
  max-width: 70ch;
}

.page-contact .pc-collab-lede {
  margin: 16px 0 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--c-muted);
}

.page-contact .pc-collab-grid {
  margin-top: clamp(24px, 3vw, 38px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-contact .pc-collab-item {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 20px;
  background: rgba(7, 11, 18, 0.5);
  box-shadow: inset 0 0 0 1px var(--edge-soft);
}

.page-contact .pc-collab-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--c-orange);
}

.page-contact .pc-collab-item h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  margin: 0;
  color: var(--c-warm);
}

.page-contact .pc-collab-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--c-muted);
}

.page-contact .pc-collab-steps {
  margin: clamp(22px, 3vw, 32px) 0 0;
  max-width: 74ch;
  padding-left: 16px;
  border-left: 2px solid var(--c-cyan);
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-muted);
}

/* ---------- 指南分流 ---------- */
.page-contact .pc-guide {
  padding-block: clamp(36px, 5vw, 72px);
}

.page-contact .pc-guide-inner {
  width: var(--pc-shell);
  margin-inline: auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 40px);
}

.page-contact .pc-guide-copy p {
  margin: 16px 0 0;
  font-size: clamp(15px, 1.6vw, 16px);
  line-height: 1.85;
  color: var(--c-muted);
  max-width: 46ch;
}

.page-contact .pc-guide-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .pc-guide-list li {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  background: rgba(14, 23, 38, 0.62);
  box-shadow: inset 0 0 0 1px var(--edge-soft);
  transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-contact .pc-guide-list li:hover {
  background: rgba(22, 34, 58, 0.86);
  box-shadow: inset 0 0 0 1px var(--edge-strong);
}

.page-contact .pc-guide-list a {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--c-cyan);
  text-decoration: none;
}

.page-contact .pc-guide-list a:hover {
  color: var(--c-orange);
}

.page-contact .pc-guide-list span {
  font-size: 14px;
  line-height: 1.72;
  color: var(--c-muted);
}

.page-contact .pc-cta {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: clamp(18px, 2.4vw, 26px);
  background: linear-gradient(110deg, rgba(255, 106, 26, 0.16), rgba(35, 224, 200, 0.09));
  box-shadow: inset 0 0 0 1px var(--edge);
}

.page-contact .pc-cta p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-warm);
}

/* ---------- 揭示动效 ---------- */
.page-contact .bk-reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-contact .bk-reveal.is-in {
  opacity: 1;
  transform: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-contact .pc-chan-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .pc-info-row {
    grid-template-columns: 116px minmax(0, 1fr);
    gap: 16px;
    align-items: baseline;
  }
}

@media (min-width: 720px) {
  .page-contact .pc-collab-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .pc-guide-inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-contact .pc-hero-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    column-gap: clamp(28px, 4vw, 64px);
  }
}

@media (min-width: 1080px) {
  .page-contact .pc-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .bk-reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .page-contact .pc-guide-list li {
    transition: none;
  }
}