.page-contact {
  --contact-flow: clamp(30px, 4.8vw, 66px);
  --contact-panel: rgba(18, 46, 69, 0.55);
  display: block;
}

/* 面包屑 */
.page-contact .breadcrumb {
  padding-top: clamp(16px, 2.4vw, 28px);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  color: var(--ink-mute);
}
.page-contact .breadcrumb ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
.page-contact .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}
.page-contact .breadcrumb a {
  color: var(--ink-mute);
  text-decoration: none;
}
.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  color: var(--accent-soft);
}

/* 区块节奏 */
.page-contact section {
  position: relative;
  padding: var(--contact-flow) 0;
}

.page-contact h1 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 3rem);
  line-height: 1.14;
  letter-spacing: -0.02em;
  margin: 14px 0;
  color: var(--ink);
}
.page-contact h2 {
  font-family: var(--font-display);
  font-size: clamp(1.28rem, 2.5vw, 2rem);
  line-height: 1.22;
  letter-spacing: -0.01em;
  margin: 12px 0 16px;
  color: var(--ink);
}
.page-contact img {
  max-width: 100%;
  height: auto;
  display: block;
}
.page-contact .img-frame {
  margin: 0;
}
.page-contact a:focus-visible,
.page-contact summary:focus-visible {
  outline: 2px solid var(--accent-soft);
  outline-offset: 3px;
}

.page-contact .contact-deck-grid,
.page-contact .contact-channel-grid,
.page-contact .office-grid {
  gap: clamp(22px, 3.2vw, 44px);
}

/* 首屏：框景牌桌 */
.page-contact .contact-deck {
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  background:
    radial-gradient(120% 92% at 10% 0%, rgba(47, 125, 91, 0.18), transparent 62%),
    linear-gradient(180deg, rgba(28, 59, 74, 0.45), rgba(11, 30, 45, 0) 62%);
  overflow: hidden;
}
.page-contact .contact-deck::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--line-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line-soft) 1px, transparent 1px);
  background-size: 72px 72px;
  pointer-events: none;
}
.page-contact .contact-deck > .container {
  position: relative;
  z-index: 1;
}

.page-contact .contact-sub {
  margin: 0 0 clamp(18px, 2.4vw, 26px);
  max-width: 46ch;
  font-size: clamp(0.94rem, 1.4vw, 1.05rem);
  line-height: 1.8;
  color: var(--ink-dim);
}

/* 联系方式信息牌 */
.page-contact .contact-plate {
  position: relative;
  padding: clamp(20px, 2.6vw, 30px);
  border: 1px solid var(--line-accent);
  background: linear-gradient(165deg, rgba(18, 46, 69, 0.94), rgba(8, 23, 36, 0.97));
  box-shadow: var(--shadow-card);
}
.page-contact .contact-plate::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 48px;
  height: 3px;
  background: var(--accent);
}
.page-contact .plate-head {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--ink-mute);
}
.page-contact .plate-list {
  margin: 0;
}
.page-contact .plate-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px dashed var(--line-soft);
}
.page-contact .plate-row dt {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--ink-mute);
}
.page-contact .plate-row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(0.95rem, 1.9vw, 1.18rem);
  font-weight: 600;
  color: var(--ink);
  overflow-wrap: anywhere;
}
.page-contact .plate-note {
  margin: 14px 0 18px;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--ink-mute);
}

/* 受理范围对照 */
.page-contact .scope-title {
  margin: 0 0 clamp(14px, 2vw, 22px);
  font-size: clamp(1.05rem, 1.7vw, 1.3rem);
  line-height: 1.35;
}
.page-contact .scope-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
.page-contact .scope-col {
  padding: clamp(16px, 2vw, 22px);
  border: 1px solid var(--line);
  border-left-width: 2px;
  border-left-style: solid;
  background: var(--contact-panel);
  transition: background var(--dur) var(--ease);
}
.page-contact .scope-col--self {
  border-left-color: var(--accent);
}
.page-contact .scope-col--agent {
  border-left-color: var(--felt-red);
}
.page-contact .scope-col:hover {
  background: rgba(28, 59, 74, 0.7);
}
.page-contact .scope-tag {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.28em;
  color: var(--ink-mute);
}
.page-contact .scope-col h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--ink);
}
.page-contact .scope-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}
.page-contact .scope-col li {
  position: relative;
  padding-left: 16px;
  font-size: 0.9rem;
  line-height: 1.68;
  color: var(--ink-dim);
  transition: color var(--dur) var(--ease);
}
.page-contact .scope-col li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 1px;
  background: var(--line-accent);
}
.page-contact .scope-col li:hover {
  color: var(--ink);
}
.page-contact .scope-col a {
  color: var(--accent-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}
.page-contact .scope-col a:hover {
  border-bottom-color: var(--accent-soft);
}

/* 渠道选择 */
.page-contact .contact-channel {
  border-top: 1px solid var(--line-soft);
}
.page-contact .channel-copy > p {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--ink-dim);
}
.page-contact .channel-list {
  list-style: none;
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-contact .channel-list li {
  padding: 16px 18px;
  border: 1px solid var(--line-soft);
  background: rgba(18, 46, 69, 0.42);
  display: grid;
  gap: 7px;
}
.page-contact .channel-key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--gold);
}
.page-contact .channel-list p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.72;
  color: var(--ink-dim);
}

/* 自助路径 */
.page-contact .contact-self {
  border-top: 1px solid var(--line-soft);
}
.page-contact .step-track {
  list-style: none;
  margin: clamp(20px, 3vw, 32px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}
.page-contact .step {
  padding: clamp(18px, 2.4vw, 28px);
  background: var(--bg-base);
  transition: background var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.page-contact .step:hover {
  background: var(--bg-raised);
  transform: translateY(-2px);
}
.page-contact .step-no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.26em;
  color: var(--accent-soft);
}
.page-contact .step h3 {
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-size: 1.02rem;
  color: var(--ink);
}
.page-contact .step p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.72;
  color: var(--ink-dim);
}
.page-contact .self-foot {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  max-width: 66ch;
  padding-left: 14px;
  border-left: 2px solid var(--gold);
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--ink-dim);
}

/* 办公地点 */
.page-contact .office-copy p {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--ink-dim);
}
.page-contact .office-address {
  margin: 18px 0;
  padding: 12px 16px;
  border-left: 2px solid var(--accent);
  background: rgba(28, 59, 74, 0.5);
  font-family: var(--font-mono);
  font-size: clamp(0.94rem, 1.5vw, 1.06rem);
  color: var(--ink);
  overflow-wrap: anywhere;
}

/* 商务与内容合作 */
.page-contact .contact-coop {
  border-top: 1px solid var(--line-soft);
}
.page-contact .contact-coop > .container > p {
  max-width: 68ch;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--ink-dim);
}
.page-contact .coop-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(14px, 2vw, 22px);
  margin-top: clamp(20px, 3vw, 32px);
}
.page-contact .coop-card {
  padding: clamp(16px, 2vw, 24px);
  border: 1px solid var(--line);
  background: var(--bg-raised);
  transition: border-color var(--dur) var(--ease);
}
.page-contact .coop-card:hover {
  border-color: var(--line-accent);
}
.page-contact .coop-card summary {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 14px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: 1.02rem;
  line-height: 1.5;
  color: var(--ink);
}
.page-contact .coop-card summary::-webkit-details-marker {
  display: none;
}
.page-contact .coop-card summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  color: var(--accent-soft);
}
.page-contact .coop-card[open] summary::after {
  content: "–";
}
.page-contact .coop-card p {
  margin: 12px 0 0;
  font-size: 0.92rem;
  line-height: 1.74;
  color: var(--ink-dim);
}
.page-contact .coop-need {
  font-size: 0.8rem !important;
  letter-spacing: 0.12em;
  color: var(--ink-mute) !important;
}
.page-contact .coop-card ul {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: grid;
  gap: 7px;
}
.page-contact .coop-card li {
  position: relative;
  padding-left: 16px;
  font-size: 0.88rem;
  line-height: 1.66;
  color: var(--ink-dim);
}
.page-contact .coop-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 1px;
  background: var(--line-accent);
}

/* 响应节奏 */
.page-contact .pace-strip {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: clamp(20px, 3vw, 30px);
  background: var(--line-soft);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}
.page-contact .pace-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: clamp(18px, 2.2vw, 26px);
  background: var(--bg-base);
}
.page-contact .pace-num {
  font-family: var(--font-mono);
  font-size: clamp(1.1rem, 1.8vw, 1.55rem);
  font-weight: 700;
  color: var(--gold);
}
.page-contact .pace-label {
  font-size: 0.86rem;
  line-height: 1.6;
  letter-spacing: 0.03em;
  color: var(--ink-mute);
}

/* 备案信息 */
.page-contact .contact-registry {
  padding-bottom: clamp(64px, 8vw, 116px);
}
.page-contact .registry-plate {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 34px);
  padding: clamp(20px, 3vw, 34px);
  border: 1px dashed var(--line);
  background: var(--bg-sunken);
}
.page-contact .registry-plate h2 {
  margin-bottom: 12px;
  font-size: clamp(1.15rem, 2vw, 1.6rem);
}
.page-contact .registry-plate p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--ink-dim);
}
.page-contact .registry-tags {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  align-content: start;
  gap: 10px;
}
.page-contact .registry-tags li {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 11px 14px;
  border: 1px solid var(--line-soft);
  background: rgba(28, 59, 74, 0.42);
  font-size: 0.88rem;
}
.page-contact .registry-tags span {
  letter-spacing: 0.1em;
  color: var(--ink-mute);
}
.page-contact .registry-tags strong {
  font-weight: 600;
  color: var(--ink);
  overflow-wrap: anywhere;
}
.page-contact .registry-links {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--ink-dim);
}
.page-contact .registry-links a {
  color: var(--accent-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--line-accent);
}
.page-contact .registry-links a:hover {
  color: var(--ink);
}

/* 悬浮返回房间列表 */
.page-contact .room-float {
  position: fixed;
  right: clamp(14px, 2.6vw, 32px);
  bottom: clamp(14px, 2.6vw, 32px);
  z-index: 40;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  border: 1px solid var(--accent-soft);
  background: var(--accent);
  color: var(--sand-white);
  font-family: var(--font-display);
  font-size: 0.92rem;
  letter-spacing: 0.06em;
  text-decoration: none;
  box-shadow: 0 18px 36px -18px rgba(0, 0, 0, 0.9);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.page-contact .room-float:hover {
  background: var(--palm-light);
  color: var(--deep-sea);
}
.page-contact .room-float-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold);
}

/* 响应式：从单列走向牌桌式分栏 */
@media (min-width: 620px) {
  .page-contact .scope-split {
    grid-template-columns: 1fr 1fr;
  }
  .page-contact .pace-strip {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 760px) {
  .page-contact .step-track {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 820px) {
  .page-contact .coop-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-contact .pace-strip {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 880px) {
  .page-contact .registry-plate {
    grid-template-columns: 1.5fr 1fr;
  }
}

@media (max-width: 560px) {
  .page-contact .room-float {
    padding: 10px 16px;
    font-size: 0.84rem;
  }
  .page-contact .plate-row dd {
    font-size: 0.9rem;
  }
  .page-contact .scope-col,
  .page-contact .coop-card,
  .page-contact .channel-list li {
    padding: 14px;
  }
}