.page-contact {
  --ct-gap: clamp(18px, 2.6vw, 34px);
  padding-bottom: clamp(40px, 6vw, 88px);
}

/* 首屏 */
.page-contact .contact-hero {
  display: grid;
  gap: clamp(24px, 3.6vw, 48px);
  align-items: start;
}

.page-contact .hero-main h1 {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 7vw, 3.5rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--paper);
  margin: 0.55rem 0 0;
  max-width: 19ch;
}

.page-contact .hero-lead {
  margin: clamp(14px, 1.8vw, 20px) 0 0;
  max-width: 54ch;
  font-size: clamp(1rem, 1.4vw, 1.06rem);
  line-height: 1.8;
  color: rgba(237, 231, 216, 0.78);
}

/* 联系信息数据卡 */
.page-contact .id-card {
  margin-top: clamp(22px, 3vw, 34px);
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  background: linear-gradient(152deg, var(--panel-soft), var(--panel) 58%, rgba(10, 14, 22, 0.9));
  box-shadow: 0 28px 70px -48px rgba(0, 0, 0, 0.95);
}

.page-contact .id-card-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.page-contact .id-card-time {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  letter-spacing: 0.02em;
  color: var(--volt);
}

.page-contact .id-list {
  margin: 14px 0 0;
  padding: 0;
}

.page-contact .id-row {
  padding: 12px 0;
  border-top: 1px solid var(--line-soft);
}

.page-contact .id-row:first-child {
  border-top: 0;
}

.page-contact .id-key {
  font-size: 0.875rem;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-contact .id-val {
  margin: 4px 0 0;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--paper);
}

.page-contact .id-val--mono {
  font-family: var(--font-mono);
  font-size: 1.02rem;
  letter-spacing: -0.01em;
  word-break: break-all;
}

.page-contact .id-note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--mist);
}

/* 首屏右侧 */
.page-contact .hero-side {
  display: grid;
  gap: clamp(14px, 2vw, 20px);
}

.page-contact .hero-media {
  aspect-ratio: 10 / 7;
  border-radius: var(--r-xl);
  overflow: hidden;
}

.page-contact .hero-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-contact .path-nav {
  display: grid;
  gap: 10px;
}

.page-contact .path-link {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  column-gap: 14px;
  padding: 13px 18px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-pill);
  background: rgba(27, 41, 66, 0.6);
  color: var(--paper);
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease),
    transform var(--dur) var(--ease);
}

.page-contact .path-link-label {
  grid-column: 1;
  font-weight: 700;
  font-size: 0.98rem;
  line-height: 1.4;
}

.page-contact .path-link-desc {
  grid-column: 1;
  margin-top: 2px;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--mist);
}

.page-contact .path-link-arrow {
  grid-column: 2;
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--teal);
  transition: transform var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .path-link:hover {
  border-color: rgba(84, 224, 198, 0.55);
  background: var(--panel-soft);
  transform: translateY(-2px);
}

.page-contact .path-link:hover .path-link-arrow {
  color: var(--volt);
  transform: translateX(3px);
}

.page-contact .path-link:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

/* 通用小节标题 */
.page-contact .section-lead {
  margin: 12px 0 0;
  max-width: 62ch;
  font-size: 1rem;
  line-height: 1.8;
  color: rgba(237, 231, 216, 0.74);
}

/* 来信准备步骤带 */
.page-contact .step-rail {
  list-style: none;
  margin: clamp(20px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.page-contact .step {
  padding: clamp(18px, 2.4vw, 26px);
  background: linear-gradient(158deg, rgba(34, 49, 76, 0.86), rgba(16, 26, 46, 0.96));
}

.page-contact .step-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.55rem;
  letter-spacing: 0.03em;
  color: var(--gold);
}

.page-contact .step-title {
  margin: 8px 0 6px;
  font-size: 1.06rem;
  font-weight: 800;
  line-height: 1.4;
  color: var(--paper);
}

.page-contact .step-text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--mist);
}

/* 合作分类 */
.page-contact .coop-grid {
  display: grid;
  gap: clamp(14px, 2vw, 20px);
  margin-top: clamp(20px, 3vw, 34px);
}

.page-contact .coop-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  padding: clamp(20px, 2.4vw, 28px);
}

.page-contact .coop-card h3 {
  margin: 0;
  font-size: 1.18rem;
  font-weight: 800;
  line-height: 1.4;
  color: var(--paper);
}

.page-contact .coop-who {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .coop-list {
  list-style: none;
  margin: 2px 0 0;
  padding: 12px 0 0;
  border-top: 1px solid var(--line-soft);
  display: grid;
  gap: 8px;
  width: 100%;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: rgba(237, 231, 216, 0.84);
}

.page-contact .coop-list li {
  position: relative;
  padding-left: 16px;
}

.page-contact .coop-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--teal);
}

/* 回复时间 */
.page-contact .reach-grid {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
  align-items: center;
}

.page-contact .clock-figure {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2vw, 22px);
  padding: clamp(16px, 2.2vw, 24px);
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  background: rgba(27, 41, 66, 0.5);
}

.page-contact .clock-ring {
  width: 86px;
  height: 86px;
  flex: none;
}

.page-contact .clock-ring text {
  font-family: var(--font-mono);
  fill: var(--paper);
}

.page-contact .clock-time {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.page-contact .clock-unit {
  font-size: 8px;
  letter-spacing: 0.12em;
  fill: var(--mist);
}

.page-contact .clock-label {
  margin: 0;
  font-size: 0.875rem;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-contact .clock-hours {
  margin: 2px 0;
  font-family: var(--font-mono);
  font-size: 1.35rem;
  letter-spacing: -0.01em;
  color: var(--sand);
}

.page-contact .clock-zone {
  margin: 0;
  font-size: 0.875rem;
  color: var(--mist);
}

.page-contact .reach-copy h2 {
  margin: clamp(20px, 2.6vw, 28px) 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.4vw, 2.1rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--paper);
}

.page-contact .reach-list {
  list-style: none;
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .reach-list li {
  display: grid;
  grid-template-columns: 3.6em minmax(0, 1fr);
  gap: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
}

.page-contact .reach-key {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  letter-spacing: 0.04em;
  color: var(--teal);
}

.page-contact .reach-text {
  font-size: 0.9375rem;
  line-height: 1.75;
  color: rgba(237, 231, 216, 0.82);
}

.page-contact .reach-media {
  aspect-ratio: 4 / 3;
  border-radius: var(--r-xl);
  overflow: hidden;
}

.page-contact .reach-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 备案与延伸阅读 */
.page-contact .record {
  margin-top: clamp(30px, 4vw, 56px);
}

.page-contact .record-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 14px 28px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.page-contact .record-key {
  margin: 0;
  font-size: 0.875rem;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-contact .record-icp {
  margin: 6px 0 0;
}

.page-contact .record-icp .num {
  font-size: 1.05rem;
  color: var(--paper);
}

.page-contact .record-note {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .next-links {
  display: grid;
  gap: 10px;
  margin-top: clamp(18px, 2.6vw, 26px);
}

.page-contact .next-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: rgba(27, 41, 66, 0.5);
  color: var(--paper);
  font-size: 0.9375rem;
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease),
    transform var(--dur) var(--ease);
}

.page-contact .next-link span {
  font-family: var(--font-mono);
  color: var(--teal);
}

.page-contact .next-link:hover {
  border-color: rgba(84, 224, 198, 0.5);
  color: var(--volt);
  transform: translateY(-2px);
}

.page-contact .next-link:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

/* 响应式 */
@media (min-width: 760px) {
  .page-contact .step-rail {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

  .page-contact .reach-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }

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

@media (min-width: 1100px) {
  .page-contact .step-rail {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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