.page-contact {
  --pc-panel: rgba(18, 48, 51, 0.68);
  --pc-gap: clamp(18px, 3vw, 34px);
  --pc-hair: rgba(230, 238, 241, 0.08);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-contact .pc-crumb {
  padding-top: calc(var(--hdr-h) + clamp(14px, 2vw, 26px));
}

.page-contact .pc-band {
  position: relative;
}

.page-contact .pc-band--ink {
  background: var(--c-ink);
}

.page-contact .pc-band--night {
  background: var(--c-night);
}

.page-contact .pc-sec {
  padding: clamp(48px, 7vw, 96px) 0;
}

.page-contact .pc-hero {
  padding: clamp(20px, 3vw, 40px) 0 clamp(40px, 6vw, 72px);
}

/* ---------- 首屏框景 ---------- */
.page-contact .pc-frame {
  position: relative;
  padding: clamp(20px, 3.2vw, 44px);
  border: 1px solid var(--c-scale);
  background:
    radial-gradient(120% 100% at 100% 0%, rgba(240, 160, 60, 0.12), transparent 58%),
    rgba(7, 15, 28, 0.5);
}

.page-contact .pc-frame::before,
.page-contact .pc-frame::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 7px;
  background-image: repeating-linear-gradient(to right, var(--c-scale) 0 1px, transparent 1px 14px);
}

.page-contact .pc-frame::before {
  top: -1px;
}

.page-contact .pc-frame::after {
  bottom: -1px;
}

.page-contact .pc-frame-ticks {
  position: absolute;
  top: 0;
  bottom: 0;
  left: -1px;
  width: 7px;
  background-image: repeating-linear-gradient(to bottom, var(--c-scale) 0 1px, transparent 1px 14px);
}

.page-contact .pc-hero-grid {
  display: grid;
  gap: var(--pc-gap);
}

.page-contact .pc-hero-copy .eyebrow {
  margin: 0 0 12px;
}

.page-contact .pc-hero-copy h1 {
  margin: 0 0 16px;
  font-family: var(--f-display);
  font-weight: 300;
  font-size: clamp(30px, 6vw, 56px);
  line-height: 1.08;
  letter-spacing: 0.01em;
  color: var(--c-text);
}

.page-contact .pc-hero-copy .page-lede {
  margin: 0;
  max-width: 56ch;
}

.page-contact .pc-facts {
  display: grid;
  gap: 10px;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .pc-fact {
  padding: 14px 16px;
  border-left: 2px solid var(--c-gold);
  background: var(--pc-panel);
}

.page-contact .pc-fact-key {
  display: block;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--c-dim);
}

.page-contact .pc-fact-val {
  display: block;
  margin-top: 8px;
  font-family: var(--f-mono);
  font-size: 13px;
  line-height: 1.5;
  color: var(--c-text);
  word-break: break-all;
}

.page-contact .pc-hero-media {
  position: relative;
}

.page-contact .pc-hero-media .media-frame {
  width: 100%;
  margin: 0;
}

.page-contact .pc-hero-media img {
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 通用段落 ---------- */
.page-contact .pc-intro {
  margin: 18px 0 0;
  max-width: 68ch;
  color: var(--c-dim);
  font-size: 15px;
  line-height: 1.75;
}

/* ---------- 渠道卡 ---------- */
.page-contact .pc-channel-grid {
  display: grid;
  gap: 16px;
  margin-top: clamp(22px, 3vw, 34px);
}

.page-contact .pc-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(18px, 2.4vw, 26px);
  border: 1px solid var(--c-scale);
  background: var(--pc-panel);
  backdrop-filter: blur(6px);
}

.page-contact .pc-card--gold {
  box-shadow: inset 3px 0 0 var(--c-gold);
}

.page-contact .pc-card--cyan {
  box-shadow: inset 3px 0 0 var(--c-cyan);
}

.page-contact .pc-card--plain {
  box-shadow: inset 3px 0 0 var(--c-scale);
}

.page-contact .pc-card-title {
  margin: 0;
  font-family: var(--f-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.12em;
  color: var(--c-dim);
}

.page-contact .pc-card-value {
  margin: 0;
  font-family: var(--f-mono);
  font-size: clamp(14px, 1.6vw, 17px);
  line-height: 1.5;
  color: var(--c-text);
  word-break: break-all;
}

.page-contact .pc-card-value--text {
  font-family: var(--f-body);
  font-size: 14.5px;
  line-height: 1.7;
  word-break: normal;
}

.page-contact .pc-card-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-dim);
}

.page-contact .copy-btn {
  align-self: flex-start;
  margin-top: auto;
  padding: 8px 14px;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--c-gold-soft);
  background: transparent;
  border: 1px solid var(--c-scale);
  cursor: pointer;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-contact .copy-btn:hover {
  border-color: var(--c-gold);
  color: var(--c-gold);
}

.page-contact .copy-btn:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 2px;
}

/* ---------- 邮件标题 ---------- */
.page-contact .pc-subject-grid {
  display: grid;
  gap: var(--pc-gap);
  margin-top: clamp(22px, 3vw, 34px);
}

.page-contact .pc-subject-copy p {
  margin: 0 0 14px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-dim);
}

.page-contact .pc-subject-format {
  padding: clamp(18px, 3vw, 30px);
  border: 1px dashed var(--c-scale);
  background: rgba(240, 160, 60, 0.06);
}

.page-contact .pc-subject-format-label {
  display: block;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--c-dim);
}

.page-contact .pc-subject-format-value {
  display: block;
  margin-top: 12px;
  font-family: var(--f-mono);
  font-size: clamp(17px, 3vw, 26px);
  line-height: 1.3;
  color: var(--c-gold-soft);
  word-break: break-all;
}

.page-contact .pc-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .pc-chips li {
  padding: 8px 12px;
  font-family: var(--f-mono);
  font-size: 12px;
  color: var(--c-text);
  background: rgba(7, 15, 28, 0.55);
  border: 1px solid var(--c-scale);
}

/* ---------- 对照表 ---------- */
.page-contact .pc-table-wrap {
  margin-top: clamp(22px, 3vw, 34px);
  overflow-x: auto;
  overscroll-behavior-x: contain;
  border: 1px solid var(--c-scale);
  background: var(--pc-panel);
}

.page-contact .pc-table-caption {
  caption-side: bottom;
  padding: 12px 16px;
  text-align: left;
  font-size: 12px;
  line-height: 1.6;
  color: var(--c-dim);
  border-top: 1px solid var(--c-scale);
}

.page-contact .pc-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-contact .pc-table th,
.page-contact .pc-table td {
  padding: 14px 16px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--c-scale);
}

.page-contact .pc-table thead th {
  font-family: var(--f-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.12em;
  color: var(--c-dim);
  background: rgba(7, 15, 28, 0.62);
}

.page-contact .pc-table tbody th {
  font-weight: 500;
  color: var(--c-text);
}

.page-contact .pc-table tbody td {
  color: var(--c-dim);
  line-height: 1.7;
}

.page-contact .pc-table tbody tr:last-child th,
.page-contact .pc-table tbody tr:last-child td {
  border-bottom: none;
}

.page-contact .pc-tag--ladder {
  background: linear-gradient(90deg, rgba(226, 69, 58, 0.24) 0 50%, rgba(52, 196, 107, 0.24) 50% 100%);
  border-color: var(--c-scale);
  color: var(--c-text);
}

/* ---------- 折叠明细 ---------- */
.page-contact .pc-details-list {
  margin-top: clamp(24px, 3vw, 36px);
  border-top: 1px solid var(--c-scale);
}

.page-contact .pc-details {
  border-bottom: 1px solid var(--c-scale);
}

.page-contact .pc-details summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 4px;
  list-style: none;
  cursor: pointer;
  font-family: var(--f-mono);
  font-size: 13px;
  color: var(--c-text);
}

.page-contact .pc-details summary::-webkit-details-marker {
  display: none;
}

.page-contact .pc-details summary::after {
  content: "＋";
  color: var(--c-gold);
  font-size: 14px;
}

.page-contact .pc-details[open] summary::after {
  content: "－";
}

.page-contact .pc-details summary:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 2px;
}

.page-contact .pc-details-body {
  padding: 0 4px 18px;
}

.page-contact .pc-details-body ul {
  margin: 0;
  padding-left: 18px;
  color: var(--c-dim);
  font-size: 14px;
  line-height: 1.8;
}

/* ---------- 备案信息 ---------- */
.page-contact .pc-region-media {
  width: 100%;
  margin: clamp(22px, 3vw, 34px) 0 0;
}

.page-contact .pc-region-media img {
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .pc-legal-strip {
  margin-top: 18px;
  border: 1px solid var(--c-scale);
  background: rgba(7, 15, 28, 0.5);
}

.page-contact .pc-legal-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px 14px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--c-scale);
}

.page-contact .pc-legal-row:last-child {
  border-bottom: none;
}

.page-contact .pc-legal-key {
  grid-column: 1 / -1;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--c-dim);
}

.page-contact .pc-legal-val {
  font-family: var(--f-mono);
  font-size: 13px;
  line-height: 1.5;
  color: var(--c-text);
  word-break: break-all;
}

.page-contact .pc-legal-note {
  margin: 14px 0 0;
  max-width: 66ch;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-dim);
}

/* ---------- 边界说明 ---------- */
.page-contact .pc-boundary {
  display: grid;
  gap: 12px;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .pc-boundary li {
  padding: 16px 18px;
  border-left: 2px solid var(--c-red);
  background: rgba(226, 69, 58, 0.07);
}

.page-contact .pc-boundary strong {
  display: block;
  margin-bottom: 6px;
  font-size: 15px;
  font-weight: 500;
  color: var(--c-text);
}

.page-contact .pc-boundary span {
  display: block;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--c-dim);
}

/* ---------- 收束 ---------- */
.page-contact .pc-close-band {
  padding: 0 0 clamp(20px, 4vw, 44px);
}

.page-contact .pc-next {
  padding: clamp(24px, 4vw, 44px);
  border: 1px solid var(--c-scale);
  background:
    linear-gradient(130deg, rgba(47, 216, 198, 0.07), transparent 58%),
    rgba(18, 48, 51, 0.5);
}

.page-contact .pc-next .eyebrow {
  margin: 0 0 10px;
}

.page-contact .pc-next-title {
  margin: 0 0 12px;
  font-family: var(--f-display);
  font-weight: 300;
  font-size: clamp(22px, 3.4vw, 34px);
  line-height: 1.15;
  color: var(--c-text);
}

.page-contact .pc-next-text {
  margin: 0;
  max-width: 64ch;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--c-dim);
}

.page-contact .pc-next-links {
  display: grid;
  gap: 12px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .pc-next-link {
  display: block;
  padding: 16px 18px;
  border: 1px solid var(--c-scale);
  background: rgba(7, 15, 28, 0.42);
  font-size: 15px;
  color: var(--c-text);
  text-decoration: none;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-contact .pc-next-link span {
  display: block;
  margin-top: 6px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--c-dim);
}

.page-contact .pc-next-link:hover {
  border-color: var(--c-gold);
  background: rgba(240, 160, 60, 0.07);
}

.page-contact .pc-next-link:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 2px;
}

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-contact .pc-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-contact .pc-boundary {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-contact .pc-subject-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-contact .pc-legal-row {
    grid-template-columns: 150px minmax(0, 1fr) auto;
  }

  .page-contact .pc-legal-key {
    grid-column: auto;
  }
}

@media (min-width: 920px) {
  .page-contact .pc-hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
  }

  .page-contact .pc-channel-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 3fr) minmax(0, 4fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .copy-btn,
  .page-contact .pc-next-link {
    transition: none;
  }
}