.page-contact {
  --pc-scan: rgba(46, 230, 214, .06);
  --pc-gutter: clamp(16px, 4vw, 32px);
  padding-top: clamp(8px, 2vw, 20px);
  padding-bottom: 0;
}

.page-contact .breadcrumb {
  padding-bottom: clamp(10px, 2vw, 18px);
}

.page-contact a:focus-visible,
.page-contact button:focus-visible,
.page-contact input:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- 首屏：错位服务台 ---------- */
.page-contact .contact-stage {
  padding-top: clamp(12px, 3vw, 32px);
  padding-bottom: clamp(36px, 7vw, 80px);
  position: relative;
}

.page-contact .stage-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 40px);
  align-items: start;
}

.page-contact .stage-lead h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(38px, 7.2vw, 84px);
  line-height: .96;
  letter-spacing: -.025em;
  margin: 10px 0 0;
  color: var(--white);
  text-wrap: balance;
}

.page-contact .stage-lead .lead {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  max-width: 60ch;
  font-family: var(--font-body);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .stage-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-contact .stage-meta {
  list-style: none;
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
}

.page-contact .stage-meta li {
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--muted);
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(21, 27, 61, .7);
}

.page-contact .stage-console {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  padding: clamp(18px, 3vw, 28px);
  min-height: 0;
  isolation: isolate;
}

.page-contact .stage-console::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background-image: repeating-linear-gradient(180deg, var(--pc-scan) 0 1px, transparent 1px 5px);
}

.page-contact .console-art {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .34;
  z-index: 0;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .95), rgba(0, 0, 0, .1));
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .95), rgba(0, 0, 0, .1));
}

.page-contact .console-body {
  position: relative;
  z-index: 2;
}

.page-contact .console-title {
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--cyan);
  margin: 0 0 14px;
}

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

.page-contact .channel {
  display: grid;
  gap: 5px;
  padding: 14px 16px;
  background: rgba(21, 27, 61, .88);
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  border-radius: var(--radius-sm);
}

.page-contact .channel--plain {
  border-left-color: var(--violet);
}

.page-contact .channel-key {
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--muted);
}

.page-contact .channel-value {
  font-size: clamp(15px, 1.8vw, 17px);
  color: var(--white);
  text-decoration: none;
  word-break: break-word;
  border-bottom: 1px solid transparent;
  transition: color .2s ease, border-color .2s ease;
}

.page-contact .channel-value:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-contact .channel-note {
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
}

/* ---------- 合作类型 ---------- */
.page-contact .coop-section {
  padding-top: clamp(28px, 5vw, 56px);
}

.page-contact .coop-head {
  display: grid;
  gap: 14px;
  margin-bottom: clamp(22px, 3.5vw, 36px);
}

.page-contact .coop-head .section-title {
  margin: 8px 0 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(26px, 4vw, 44px);
  line-height: 1.14;
  color: var(--white);
}

.page-contact .coop-head .section-note {
  margin: 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.82;
  color: var(--muted);
}

.page-contact .coop-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-contact .coop-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  overflow: hidden;
}

.page-contact .coop-card::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(180deg, var(--pc-scan) 0 1px, transparent 1px 5px);
  opacity: .8;
}

.page-contact .coop-card > * {
  position: relative;
  z-index: 1;
}

.page-contact .coop-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 72px;
  height: 3px;
  z-index: 2;
}

.page-contact .coop-card--a {
  background: linear-gradient(158deg, rgba(6, 59, 67, .92) 0%, var(--panel) 62%);
}
.page-contact .coop-card--a::after { background: var(--cyan); }

.page-contact .coop-card--b {
  background: linear-gradient(158deg, rgba(58, 16, 40, .95) 0%, var(--panel) 64%);
}
.page-contact .coop-card--b::after { background: var(--gold); }

.page-contact .coop-card--c {
  background: linear-gradient(200deg, var(--panel-2) 0%, var(--panel) 70%);
}
.page-contact .coop-card--c::after { background: var(--ok); }

.page-contact .coop-card--d {
  background: linear-gradient(200deg, rgba(123, 77, 255, .24) 0%, var(--panel) 68%);
}
.page-contact .coop-card--d::after { background: var(--violet); }

.page-contact .coop-card .plate {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
}

.page-contact .coop-card h3 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(21px, 2.6vw, 28px);
  line-height: 1.25;
  color: var(--white);
}

.page-contact .coop-fit {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--cyan);
}

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

.page-contact .coop-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 7px;
}

.page-contact .coop-points li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--white);
}

.page-contact .coop-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 1px;
  background: var(--gold);
}

.page-contact .coop-card .expand {
  margin-top: 4px;
  border-top: 1px solid var(--line);
  padding-top: 10px;
}

.page-contact .coop-card .expand-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  padding: 8px 0;
  background: none;
  border: 0;
  cursor: pointer;
  color: var(--white);
  text-align: left;
}

.page-contact .coop-card .expand-title {
  font-family: var(--font-body);
  font-size: 14px;
  letter-spacing: .04em;
  color: var(--cyan);
}

.page-contact .coop-card .expand-icon {
  position: relative;
  width: 14px;
  height: 14px;
  flex: 0 0 14px;
}

.page-contact .coop-card .expand-icon::before,
.page-contact .coop-card .expand-icon::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform .24s ease;
}

.page-contact .coop-card .expand-icon::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-contact .coop-card .expand-icon::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
}

.page-contact .coop-card .expand-trigger[aria-expanded="true"] .expand-icon::after {
  transform: scaleY(0);
}

.page-contact .coop-card .expand-body {
  padding: 6px 0 4px;
}

.page-contact .coop-card .expand-body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 客服与账号结算 ---------- */
.page-contact .support-section {
  padding-top: clamp(32px, 6vw, 64px);
}

.page-contact .support-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3.5vw, 40px);
  align-items: start;
}

.page-contact .support-copy .section-title {
  margin: 8px 0 16px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(26px, 3.8vw, 40px);
  line-height: 1.16;
  color: var(--white);
}

.page-contact .support-copy p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
  max-width: 64ch;
}

.page-contact .support-copy a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(46, 230, 214, .45);
}

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

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

.page-contact .support-side {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  padding: clamp(16px, 2.6vw, 24px);
}

.page-contact .support-side-art {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-sm);
  object-fit: cover;
  opacity: .85;
  margin-bottom: 16px;
}

.page-contact .side-key {
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--gold);
  margin: 0 0 10px;
}

.page-contact .route-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .route-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 12px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(10, 14, 40, .72);
  font-size: 14px;
  color: var(--white);
}

.page-contact .route-list li .mono {
  font-size: 12px;
  color: var(--cyan);
}

/* ---------- 反馈准备清单 ---------- */
.page-contact .checklist-section {
  padding-top: clamp(32px, 6vw, 64px);
}

.page-contact .checklist-frame {
  border-radius: var(--radius);
  padding: clamp(20px, 3.2vw, 36px);
  border: 1px solid var(--line);
}

.page-contact .checklist-head {
  max-width: 62ch;
  margin-bottom: clamp(16px, 2.6vw, 24px);
}

.page-contact .checklist-title {
  margin: 8px 0 10px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(24px, 3.4vw, 36px);
  line-height: 1.18;
  color: var(--white);
}

.page-contact .checklist-head .section-note {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

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

.page-contact .checklist-item {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(10, 14, 40, .6);
  transition: border-color .2s ease, background .2s ease;
}

.page-contact .checklist-item:hover {
  border-color: rgba(46, 230, 214, .5);
}

.page-contact .checklist-label {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
}

.page-contact .checklist-box {
  appearance: none;
  -webkit-appearance: none;
  flex: 0 0 22px;
  width: 22px;
  height: 22px;
  margin: 2px 0 0;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(46, 230, 214, .07);
  position: relative;
  cursor: pointer;
  transition: border-color .2s ease, background .2s ease;
}

.page-contact .checklist-box:checked {
  border-color: var(--cyan);
  background: rgba(46, 230, 214, .22);
}

.page-contact .checklist-box:checked::after {
  content: "";
  position: absolute;
  left: 7px;
  top: 2px;
  width: 6px;
  height: 12px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(40deg);
}

.page-contact .checklist-text {
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .checklist-text strong {
  display: block;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 2px;
}

.page-contact .checklist-box:checked ~ .checklist-text {
  color: var(--muted);
}

.page-contact .checklist-box:checked ~ .checklist-text strong {
  color: var(--cyan);
}

/* ---------- 地址与备案收束 ---------- */
.page-contact .meta-band {
  margin-top: clamp(36px, 6vw, 72px);
  padding: clamp(26px, 4.5vw, 48px) 0;
  background: linear-gradient(118deg, rgba(58, 16, 40, .9) 0%, rgba(6, 59, 67, .82) 100%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .meta-band-title {
  margin: 0 0 clamp(16px, 2.4vw, 24px);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .18em;
  color: var(--gold);
  text-transform: uppercase;
}

.page-contact .meta-band-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px 24px;
}

.page-contact .meta-item {
  border-left: 2px solid rgba(46, 230, 214, .5);
  padding-left: 14px;
}

.page-contact .meta-key {
  display: block;
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--muted);
  margin-bottom: 6px;
}

.page-contact .meta-value {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--white);
  word-break: break-word;
}

.page-contact .meta-value a {
  color: var(--white);
  text-decoration: none;
  border-bottom: 1px solid rgba(244, 247, 255, .3);
  transition: color .2s ease, border-color .2s ease;
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-contact .coop-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 18px;
  }

  .page-contact .coop-card--a { grid-column: span 7; }
  .page-contact .coop-card--b { grid-column: span 5; margin-top: 28px; }
  .page-contact .coop-card--c { grid-column: span 5; }
  .page-contact .coop-card--d { grid-column: span 7; margin-top: -20px; }

  .page-contact .meta-band-inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-contact .stage-grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .page-contact .stage-console {
    margin-top: clamp(12px, 2.4vw, 40px);
  }

  .page-contact .coop-head {
    grid-template-columns: minmax(0, 1fr) minmax(0, .82fr);
    align-items: end;
    gap: clamp(24px, 4vw, 56px);
  }

  .page-contact .support-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  }

  .page-contact .meta-band-inner {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 420px) {
  .page-contact .stage-meta li {
    font-size: 11px;
    padding: 5px 9px;
  }

  .page-contact .channel {
    padding: 12px 13px;
  }

  .page-contact .checklist-label {
    padding: 12px 13px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition: none !important;
    animation: none !important;
  }
}
<<<END>>>