.page-contact {
  --pc-lift: 0px;
  --pc-rule: rgba(242, 239, 230, .12);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding-top: clamp(18px, 4vw, 40px);
  padding-bottom: clamp(30px, 5vw, 56px);
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: clamp(22px, 4vw, 46px);
  align-items: end;
  margin-top: clamp(18px, 3vw, 32px);
}

.page-contact .contact-hero__title {
  font-family: var(--font-title);
  font-weight: 900;
  letter-spacing: -0.02em;
  font-size: clamp(30px, 6.4vw, 60px);
  line-height: 1.1;
  color: var(--paper);
  margin: .28em 0 0;
}

.page-contact .contact-hero__lead {
  max-width: 54ch;
  margin: clamp(14px, 2.4vw, 22px) 0 0;
  font-size: clamp(15px, 2vw, 18px);
  line-height: 1.78;
  color: var(--paper-dim);
}

.page-contact .contact-hero__aside {
  border: 1px solid var(--line);
  border-left: 3px solid var(--neon);
  border-radius: var(--radius);
  padding: clamp(16px, 2.4vw, 24px);
  background: linear-gradient(180deg, rgba(18, 41, 63, .92), rgba(11, 27, 43, .92));
}

.page-contact .hero-status {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .hero-status li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--paper-dim);
}

.page-contact .hero-status__dot {
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--neon);
  box-shadow: 0 0 0 4px rgba(53, 240, 208, .14);
  transform: translateY(-2px);
}

.page-contact .hero-status__dot--signal {
  background: var(--signal);
  box-shadow: 0 0 0 4px rgba(255, 122, 51, .14);
}

.page-contact .hero-status__dot--up {
  background: var(--up);
  box-shadow: 0 0 0 4px rgba(47, 208, 138, .14);
}

.page-contact .contact-hero__aside-cta {
  margin: 20px 0 0;
}

.page-contact .contact-hero__figure {
  margin-top: clamp(28px, 5vw, 56px);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  overflow: hidden;
  background: var(--ink-800);
}

.page-contact .contact-hero__figure img,
.page-contact .contact-fix__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 章节头 ---------- */
.page-contact .contact-head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(22px, 4vw, 40px);
}

.page-contact .contact-head p {
  max-width: 60ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper-dim);
}

/* ---------- 三条通道 ---------- */
.page-contact .contact-channels__deck {
  display: grid;
  gap: 20px;
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(20px, 3vw, 28px);
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  box-shadow: 8px 8px 0 -1px var(--ink-700), var(--shadow-paper);
  transform: translateY(var(--pc-lift));
  transition: transform .32s var(--ease), box-shadow .32s var(--ease);
}

.page-contact .channel-card:hover {
  transform: translateY(calc(var(--pc-lift) - 6px));
  box-shadow: 10px 12px 0 -1px var(--ink-700), var(--shadow-lift);
}

.page-contact .channel-card--mail { border-top: 3px solid var(--neon); }
.page-contact .channel-card--phone { border-top: 3px solid var(--signal); }
.page-contact .channel-card--addr { border-top: 3px solid var(--moss); }

.page-contact .channel-card__title {
  margin: 0;
  font-family: var(--font-title);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--paper);
}

.page-contact .channel-card__value {
  margin: 0;
  font-family: var(--font-data);
  font-size: clamp(15px, 2.2vw, 17px);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  line-height: 1.5;
  color: var(--paper);
  word-break: break-word;
}

.page-contact .channel-card--mail .channel-card__value { color: var(--neon); }
.page-contact .channel-card--phone .channel-card__value { color: var(--signal-lift); }

.page-contact .channel-card--addr .channel-card__value {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.72;
  color: var(--paper);
}

.page-contact .channel-card__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--paper-dim);
}

.page-contact .channel-card__meta {
  margin: auto 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--pc-rule);
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--paper-faint);
}

/* ---------- 常见来意 ---------- */
.page-contact .scene-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .scene-item {
  border-bottom: 1px solid var(--line);
}

.page-contact .scene-summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 4px;
  cursor: pointer;
  list-style: none;
}

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

.page-contact .scene-summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-data);
  font-size: 20px;
  line-height: 1;
  color: var(--paper-faint);
  transition: transform .3s var(--ease), color .3s var(--ease);
}

.page-contact .scene-details[open] .scene-summary::after {
  transform: rotate(45deg);
  color: var(--neon);
}

.page-contact .scene-summary:hover .scene-title {
  color: var(--neon);
}

.page-contact .scene-icon {
  flex: none;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: rgba(53, 240, 208, .06);
  color: var(--neon);
}

.page-contact .scene-icon svg {
  width: 17px;
  height: 17px;
  display: block;
}

.page-contact .scene-label {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 12px;
  min-width: 0;
}

.page-contact .scene-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--paper);
  transition: color .25s var(--ease);
}

.page-contact .scene-hint {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--paper-faint);
}

.page-contact .scene-body {
  padding: 0 4px 22px;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper-dim);
}

.page-contact .scene-body p { margin: 0; }

.page-contact .scene-body a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 240, 208, .4);
}

.page-contact .scene-body a:hover {
  border-bottom-color: var(--neon);
}

/* ---------- 响应节奏 ---------- */
.page-contact .sla-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 28px;
}

.page-contact .sla-row {
  display: grid;
  gap: 10px;
}

.page-contact .sla-time {
  font-family: var(--font-data);
  font-size: 15px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  letter-spacing: .02em;
  color: var(--paper);
}

.page-contact .sla-bar {
  position: relative;
  display: block;
  height: 6px;
  border-radius: 3px;
  background: rgba(242, 239, 230, .08);
  overflow: hidden;
}

.page-contact .sla-bar__fill {
  display: block;
  height: 100%;
  border-radius: 3px;
}

.page-contact .sla-row--online .sla-bar__fill {
  width: 100%;
  background: linear-gradient(90deg, var(--neon), rgba(53, 240, 208, .28));
}

.page-contact .sla-row--mail .sla-bar__fill {
  width: 58%;
  background: linear-gradient(90deg, var(--signal), rgba(255, 122, 51, .28));
}

.page-contact .sla-row--fix .sla-bar__fill {
  width: 74%;
  background: linear-gradient(90deg, var(--up), rgba(47, 208, 138, .28));
}

.page-contact .sla-note {
  font-size: 14px;
  line-height: 1.75;
  color: var(--paper-dim);
}

/* ---------- 数据纠错 ---------- */
.page-contact .contact-fix__grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

.page-contact .contact-fix__lead {
  margin: 16px 0 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper-dim);
}

.page-contact .fix-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
}

.page-contact .fix-list li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px dashed var(--pc-rule);
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper-dim);
  transition: color .25s var(--ease), background-color .25s var(--ease);
}

.page-contact .fix-list li:hover {
  color: var(--paper);
  background: rgba(53, 240, 208, .04);
}

.page-contact .fix-list__num {
  flex: none;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--neon);
}

.page-contact .fix-flow {
  counter-reset: pc-flow;
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .fix-flow li {
  position: relative;
  padding-left: 32px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--paper-dim);
}

.page-contact .fix-flow li::before {
  counter-increment: pc-flow;
  content: counter(pc-flow, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--signal);
}

.page-contact .contact-fix__figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  overflow: hidden;
  background: var(--ink-800);
}

/* ---------- 内容共建 ---------- */
.page-contact .collab-grid {
  display: grid;
  gap: 18px;
}

.page-contact .collab-card {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: clamp(20px, 3vw, 26px);
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-left: 3px solid var(--moss);
  border-radius: var(--radius-card);
}

.page-contact .collab-card h3 {
  margin: 0;
  font-family: var(--font-title);
  font-size: 16px;
  font-weight: 800;
  letter-spacing: .01em;
  color: var(--paper);
}

.page-contact .collab-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--paper-dim);
}

.page-contact .contact-collab__ask {
  margin: clamp(24px, 4vw, 34px) 0 0;
  max-width: 66ch;
  padding-left: 18px;
  border-left: 2px solid var(--signal);
  font-size: 15px;
  line-height: 1.82;
  color: var(--paper-dim);
}

.page-contact .contact-collab__ask a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 240, 208, .4);
}

.page-contact .contact-collab__ask a:hover {
  border-bottom-color: var(--neon);
}

/* ---------- 发信提示 ---------- */
.page-contact .contact-brief__card {
  position: relative;
  padding: clamp(24px, 4vw, 42px);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-card);
  background:
    repeating-linear-gradient(180deg, rgba(242, 239, 230, .028) 0 1px, transparent 1px 44px),
    var(--ink-800);
  box-shadow: var(--shadow-paper);
}

.page-contact .contact-brief__card::before {
  content: "";
  position: absolute;
  top: -1px;
  left: clamp(24px, 4vw, 42px);
  width: 72px;
  height: 3px;
  background: var(--signal);
}

.page-contact .contact-brief__title {
  margin: 0;
  font-family: var(--font-title);
  font-size: clamp(20px, 3.2vw, 28px);
  font-weight: 900;
  letter-spacing: -0.01em;
  line-height: 1.3;
  color: var(--paper);
}

.page-contact .contact-brief__lead {
  margin: 12px 0 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper-dim);
}

.page-contact .brief-fields {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .brief-fields li {
  display: grid;
  gap: 6px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--pc-rule);
}

.page-contact .brief-fields__label {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--paper-faint);
}

.page-contact .brief-fields__slot {
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper);
}

.page-contact .contact-brief__foot {
  margin: 24px 0 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--paper-dim);
}

.page-contact .contact-brief__foot .mono {
  color: var(--neon);
  font-weight: 600;
}

.page-contact .contact-brief__foot a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 240, 208, .4);
}

.page-contact .contact-brief__foot a:hover,
.page-contact .contact-brief__foot a:focus-visible {
  border-bottom-color: var(--neon);
}

.page-contact a:focus-visible,
.page-contact summary:focus-visible {
  outline: 1px solid var(--neon);
  outline-offset: 3px;
  border-radius: var(--radius);
}

/* ---------- 响应式 ---------- */
@media (min-width: 680px) {
  .page-contact .collab-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .sla-row {
    grid-template-columns: 168px minmax(0, 1fr);
    align-items: center;
    gap: 14px 24px;
  }

  .page-contact .sla-note {
    grid-column: 2 / 3;
  }
}

@media (min-width: 860px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  }
}

@media (min-width: 900px) {
  .page-contact .contact-channels__deck {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(18px, 2.6vw, 32px);
    padding-bottom: 62px;
  }

  .page-contact .channel-card--phone { --pc-lift: 28px; }
  .page-contact .channel-card--addr { --pc-lift: 56px; }

  .page-contact .contact-fix__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, .7fr);
    align-items: start;
  }

  .page-contact .collab-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .sla-row {
    grid-template-columns: 168px minmax(0, 1fr) minmax(0, .8fr);
  }

  .page-contact .sla-note {
    grid-column: 3 / 4;
  }

  .page-contact .brief-fields li {
    grid-template-columns: 160px minmax(0, 1fr);
    align-items: baseline;
    gap: 20px;
  }
}

@media (max-width: 559px) {
  .page-contact .scene-body {
    padding-left: 4px;
    padding-top: 4px;
  }

  .page-contact .scene-summary {
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .scene-summary::after,
  .page-contact .scene-title,
  .page-contact .fix-list li {
    transition: none;
  }

  .page-contact .channel-card:hover {
    transform: translateY(var(--pc-lift));
  }
}