.page-contact {
  --ct-gap: clamp(20px, 3vw, 40px);
  --ct-pad: clamp(18px, 2.4vw, 30px);
  background: var(--ink);
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(22px, 3.4vw, 44px) clamp(40px, 6vw, 80px);
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.page-contact .ct-hero-bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .2;
}

.page-contact .ct-hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 90% at 8% 0%, rgba(53, 242, 200, .16), transparent 62%),
    linear-gradient(180deg, rgba(7, 19, 15, .5), rgba(7, 19, 15, .97));
}

.page-contact .ct-hero-inner {
  position: relative;
  z-index: 1;
}

.page-contact .ct-hero-head {
  margin-top: clamp(24px, 4vw, 48px);
}

.page-contact .ct-hero-head h1 {
  margin: 14px 0 0;
  font-family: var(--font-head);
  font-size: clamp(30px, 5.4vw, 60px);
  line-height: 1.08;
  letter-spacing: -.02em;
  font-weight: 900;
  max-width: 13em;
}

.page-contact .ct-hero-head .lede {
  margin: 18px 0 0;
  max-width: 38em;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.9;
}

/* ---------- 三栏通道卡片 ---------- */
.page-contact .ct-channels {
  display: grid;
  gap: 1px;
  margin-top: clamp(28px, 4vw, 52px);
  background: var(--line);
  border: 1px solid var(--line);
}

@media (min-width: 860px) {
  .page-contact .ct-channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .ct-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: var(--ct-pad);
  background: var(--block);
  transition: transform 240ms var(--ease), box-shadow 240ms var(--ease);
}

.page-contact .ct-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--stroke);
}

.page-contact .ct-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 44px -32px rgba(0, 0, 0, .9);
}

.page-contact .ct-card--mail {
  background:
    linear-gradient(180deg, rgba(53, 242, 200, .09), rgba(53, 242, 200, 0) 68%),
    var(--block);
}

.page-contact .ct-card--mail::before {
  background: var(--signal);
}

.page-contact .ct-card--tel::before {
  background: var(--paper);
}

.page-contact .ct-card--addr::before {
  background: var(--muted);
}

.page-contact .ct-card-idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--muted);
}

.page-contact .ct-card-title {
  margin: 0;
  font-size: clamp(18px, 2vw, 22px);
  font-weight: 800;
  letter-spacing: -.01em;
}

.page-contact .ct-card-value {
  margin: 0;
  font-size: clamp(15px, 1.7vw, 18px);
  line-height: 1.6;
  font-weight: 700;
  word-break: break-word;
  color: var(--paper);
}

.page-contact .ct-card--mail .ct-card-value {
  color: var(--signal);
  font-size: clamp(14px, 1.5vw, 17px);
}

.page-contact .ct-card--addr .ct-card-value {
  font-size: clamp(14px, 1.5vw, 16px);
  font-weight: 600;
  color: var(--muted);
}

.page-contact .ct-card-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .ct-card-meta {
  display: grid;
  gap: 8px;
  margin: auto 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.page-contact .ct-card-meta > div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.page-contact .ct-card-meta dt {
  font-size: 13px;
  color: var(--muted);
}

.page-contact .ct-card-meta dd {
  margin: 0;
  font-size: 13px;
  color: var(--paper);
}

.page-contact .ct-mono {
  font-family: var(--font-mono);
}

/* ---------- 处理流程 ---------- */
.page-contact .ct-flow-section {
  background:
    linear-gradient(180deg, rgba(14, 42, 34, .55), rgba(7, 19, 15, 0));
}

.page-contact .ct-flow-side {
  margin: 0;
  max-width: 26em;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .ct-flow {
  display: grid;
  gap: 1px;
  margin: clamp(24px, 3vw, 40px) 0 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}

@media (min-width: 780px) {
  .page-contact .ct-flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-contact .ct-flow-step {
  position: relative;
  padding: var(--ct-pad);
  background: var(--block);
  transition: background 240ms var(--ease);
}

.page-contact .ct-flow-step:hover {
  background: var(--zebra);
}

.page-contact .ct-flow-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--signal);
}

.page-contact .ct-flow-name {
  margin: 10px 0 8px;
  font-size: 16px;
  font-weight: 800;
}

.page-contact .ct-flow-note {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 勘误要点 ---------- */
.page-contact .ct-fix-grid {
  display: grid;
  gap: var(--ct-gap);
  margin-top: clamp(22px, 3vw, 36px);
}

@media (min-width: 940px) {
  .page-contact .ct-fix-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr);
    align-items: start;
  }
}

.page-contact .ct-checklist {
  counter-reset: ck;
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .ct-checklist li {
  counter-increment: ck;
  display: flex;
  gap: 14px;
  padding: 16px 18px;
  background: var(--block);
  transition: background 200ms var(--ease);
}

.page-contact .ct-checklist li:hover {
  background: var(--zebra);
}

.page-contact .ct-checklist li::before {
  content: counter(ck, decimal-leading-zero);
  flex: none;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--signal);
}

.page-contact .ct-ck-text {
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .ct-ck-text strong {
  display: block;
  margin-bottom: 2px;
  font-size: 15px;
  font-weight: 800;
  color: var(--paper);
}

.page-contact .ct-quick {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  margin-top: 22px;
}

.page-contact .ct-quick-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--muted);
}

.page-contact .ct-quick a {
  font-size: 13px;
  color: var(--signal-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
  transition: color 200ms var(--ease), border-color 200ms var(--ease);
}

.page-contact .ct-quick a:hover {
  color: var(--signal);
  border-color: var(--signal);
}

.page-contact .ct-fix-aside {
  padding: var(--ct-pad);
  border: 1px solid var(--line);
  border-left: 3px solid var(--signal);
  background:
    linear-gradient(135deg, rgba(53, 242, 200, .1), rgba(53, 242, 200, 0) 58%),
    var(--block);
}

.page-contact .ct-fix-aside-num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(44px, 6vw, 68px);
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--signal);
}

.page-contact .ct-fix-aside-label {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--muted);
}

.page-contact .ct-fix-aside-text {
  margin: 18px 0 22px;
  font-size: 14px;
  line-height: 1.9;
  color: var(--muted);
}

/* ---------- 合作对接 ---------- */
.page-contact .ct-coop-section {
  background:
    linear-gradient(180deg, rgba(14, 42, 34, .5), rgba(7, 19, 15, 0));
}

.page-contact .ct-coop-section .filter-bar {
  margin-top: clamp(20px, 2.6vw, 30px);
}

.page-contact .ct-coop-grid {
  display: grid;
  gap: var(--ct-gap);
  margin-top: clamp(22px, 3vw, 34px);
}

@media (min-width: 1000px) {
  .page-contact .ct-coop-grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    align-items: start;
  }
}

.page-contact .ct-coop-list {
  display: grid;
  gap: 14px;
}

.page-contact .ct-coop-item {
  position: relative;
  padding: var(--ct-pad);
  background: var(--block);
  border: 1px solid var(--line);
  transition: transform 240ms var(--ease), border-color 240ms var(--ease);
}

.page-contact .ct-coop-item::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 3px;
  background: var(--stroke);
}

.page-contact .ct-coop-item[data-filter-item~="content"]::before {
  background: var(--signal);
}

.page-contact .ct-coop-item[data-filter-item~="biz"]::before {
  background: var(--alert);
}

.page-contact .ct-coop-item:hover {
  transform: translateY(-2px);
  border-color: var(--stroke);
}

.page-contact .ct-coop-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 14px;
}

.page-contact .ct-coop-title {
  margin: 0;
  font-size: clamp(16px, 1.8vw, 19px);
  font-weight: 800;
  letter-spacing: -.01em;
}

.page-contact .ct-coop-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 3px 8px;
  white-space: nowrap;
}

.page-contact .ct-coop-desc {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.9;
  color: var(--muted);
}

.page-contact .ct-coop-need {
  margin: 12px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  line-height: 1.8;
  color: var(--signal-soft);
}

.page-contact .ct-coop-aside {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-contact .ct-coop-aside .media-frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-contact .ct-coop-aside .media-frame__caption {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .ct-coop-aside .btn {
  justify-self: start;
}

/* ---------- 回复节奏 ---------- */
.page-contact .ct-hours-grid {
  display: grid;
  gap: 1px;
  margin-top: clamp(22px, 3vw, 36px);
  background: var(--line);
  border: 1px solid var(--line);
}

@media (min-width: 820px) {
  .page-contact .ct-hours-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .ct-hours-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: var(--ct-pad);
  background: var(--block);
  transition: background 240ms var(--ease);
}

.page-contact .ct-hours-card:hover {
  background: var(--zebra);
}

.page-contact .ct-hours-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--stroke);
}

.page-contact .ct-hours-name {
  margin: 0;
  font-size: 16px;
  font-weight: 800;
}

.page-contact .ct-hours-time {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: .02em;
  color: var(--alert);
}

.page-contact .ct-hours-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 备案信息 ---------- */
.page-contact .ct-filing {
  display: grid;
  gap: clamp(20px, 2.6vw, 32px);
  padding: clamp(22px, 3vw, 40px);
  border: 1px solid var(--line);
  background:
    repeating-linear-gradient(90deg, var(--grid-line) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(0deg, var(--grid-line) 0 1px, transparent 1px 64px),
    var(--ink);
}

@media (min-width: 900px) {
  .page-contact .ct-filing-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-contact .ct-filing-grid {
  display: grid;
  gap: 1px;
  margin: 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .ct-filing-grid > div {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 18px;
  background: var(--block);
}

.page-contact .ct-filing-grid dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--muted);
}

.page-contact .ct-filing-grid dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper);
}

.page-contact .ct-filing-note {
  margin: 0;
  max-width: 42em;
  font-size: 14px;
  line-height: 1.9;
  color: var(--muted);
}

.page-contact .ct-filing-note a {
  color: var(--signal-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .ct-filing-note a:hover {
  color: var(--signal);
}

/* ---------- 交互与降级 ---------- */
.page-contact .ct-coop-item.is-in,
.page-contact .is-in {
  animation: ct-fade-in 160ms var(--ease) both;
}

@keyframes ct-fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

.page-contact a:focus-visible,
.page-contact button:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

@media (max-width: 620px) {
  .page-contact .ct-fix-aside-num {
    font-size: 44px;
  }

  .page-contact .ct-coop-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  .page-contact .ct-coop-aside .btn {
    justify-self: stretch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-card,
  .page-contact .ct-flow-step,
  .page-contact .ct-checklist li,
  .page-contact .ct-coop-item,
  .page-contact .ct-hours-card {
    transition: none;
  }

  .page-contact .ct-coop-item.is-in {
    animation: none;
  }

  .page-contact .ct-card:hover,
  .page-contact .ct-coop-item:hover {
    transform: none;
  }
}