/* ===== 产品中心页专属样式 ===== */

/* 面包屑与页头 */
.page-products .breadcrumb {
  padding-top: 28px;
}

.page-products .product-page-head {
  padding: 24px 0 28px;
}

.page-products .product-page-head .page-title {
  font-size: clamp(2.4rem, 6vw, 4.6rem);
  line-height: var(--display-lh);
  font-weight: 900;
  letter-spacing: -0.02em;
  max-width: 14em;
  margin: 10px 0 18px;
}

.page-products .product-page-head .page-desc {
  max-width: 54em;
  margin: 0;
  color: var(--text-dim);
  line-height: var(--body-lh);
}

.page-products .page-index {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0 0 32px;
  border-bottom: 2px solid var(--border);
}

.page-products .page-index a {
  display: inline-block;
  padding: 8px 14px;
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 0.875rem;
  line-height: 1.2;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease), background-color 0.25s var(--ease);
}

.page-products .page-index a:hover {
  border-color: var(--accent);
  color: var(--text);
  background: var(--surface);
}

/* 区块通用头 */
.page-products .section-head-row {
  display: grid;
  gap: 14px;
  margin-bottom: 36px;
}

.page-products .section-head-row .section-title {
  margin: 8px 0 0;
}

.page-products .section-head-row .section-desc {
  max-width: 38em;
  margin: 0;
  color: var(--text-dim);
  line-height: var(--body-lh);
}

.page-products .section--alt {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

/* 01 双屏比分 */
.page-products .dual-stage {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  margin-bottom: 32px;
}

.page-products .screen-card {
  position: relative;
  padding: 26px;
  background: var(--surface);
  border: 2px solid var(--border);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-products .screen-card--live {
  border-left: 6px solid var(--accent);
  box-shadow: 10px 10px 0 var(--shadow);
}

.page-products .screen-card--replay {
  border-right: 6px solid var(--cyan);
  box-shadow: -10px 10px 0 var(--shadow);
}

.page-products .screen-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-soft);
}

.page-products .screen-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.page-products .screen-state {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--accent);
}

.page-products .screen-state--cyan {
  color: var(--cyan);
}

.page-products .state-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 10px currentColor;
  animation: pp-pulse 1.6s ease-in-out infinite;
}

.page-products .screen-card-title {
  margin: 0 0 12px;
  font-size: 1.4rem;
  font-weight: 800;
}

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

.page-products .screen-list li {
  position: relative;
  padding-left: 18px;
  color: var(--text-dim);
  line-height: var(--body-lh);
}

.page-products .screen-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 2px;
  background: var(--accent);
}

.page-products .screen-card--replay .screen-list li::before {
  background: var(--cyan);
}

.page-products .sync-line {
  display: none;
}

/* 图文媒体块 */
.page-products .product-media {
  margin: 0;
  background: var(--surface);
  border: 2px solid var(--border);
  box-shadow: 12px 12px 0 var(--shadow);
}

.page-products .product-media--dual {
  margin-top: 4px;
}

.page-products .product-media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
}

.page-products .product-media figcaption {
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 0.875rem;
  line-height: var(--body-lh);
}

/* 02 三步路径 */
.page-products .path-steps {
  display: grid;
  gap: 0;
  margin: 32px 0;
}

.page-products .path-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 18px;
  align-items: start;
  padding: 24px;
  background: var(--surface);
  border: 2px solid var(--border);
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.page-products .path-step:hover {
  border-color: var(--accent);
  box-shadow: 6px 6px 0 var(--shadow);
}

.page-products .path-step-num {
  font-size: 1.9rem;
  font-weight: 900;
  line-height: 1;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.page-products .path-step-title {
  margin: 0 0 8px;
  font-size: 1.15rem;
  font-weight: 700;
}

.page-products .path-step-text {
  margin: 0;
  color: var(--text-dim);
  line-height: var(--body-lh);
}

.page-products .path-arrow {
  padding: 8px 0;
  text-align: center;
  color: var(--cyan);
  font-size: 1.4rem;
  font-weight: 300;
  line-height: 1;
}

/* 03 历史记录恢复 */
.page-products .restore-grid {
  align-items: center;
}

.page-products .restore-copy .section-title {
  margin-top: 8px;
}

.page-products .restore-text {
  margin: 18px 0;
  color: var(--text-dim);
  line-height: var(--body-lh);
}

.page-products .restore-panel {
  margin: 20px 0;
}

.page-products .restore-points {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-products .restore-points li {
  position: relative;
  padding-left: 22px;
  line-height: var(--body-lh);
}

.page-products .restore-points li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent);
  font-weight: 700;
}

.page-products .restore-media {
  margin-top: 28px;
}

/* 04 性能参数 */
.page-products .perf-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 28px;
}

.page-products .perf-metric {
  padding: 28px 16px;
  text-align: center;
  background: var(--surface);
  border: 2px solid var(--border);
  box-shadow: 8px 8px 0 var(--shadow);
}

.page-products .perf-value {
  font-size: clamp(2.2rem, 8vw, 3.8rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-products .perf-unit {
  margin-left: 4px;
  font-style: normal;
  font-size: 0.42em;
  font-weight: 700;
  color: var(--accent);
}

.page-products .perf-metric .metric-label {
  display: block;
  margin-top: 10px;
  color: var(--text-dim);
  font-size: 0.875rem;
}

.page-products .perf-gauge {
  padding: 24px;
  margin-bottom: 28px;
  background: var(--surface);
  border: 2px solid var(--border);
}

.page-products .perf-gauge-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 12px;
  font-weight: 700;
}

.page-products .perf-gauge-head strong {
  color: var(--accent);
  font-size: 1.35rem;
}

.page-products .perf-thumb {
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-soft));
  box-shadow: 0 0 12px rgba(255, 107, 0, 0.35);
  animation: pp-gauge 1.5s var(--ease) 0.4s forwards;
}

.page-products .perf-gauge-note {
  margin: 14px 0 0;
  color: var(--text-dim);
  font-size: 0.875rem;
  line-height: var(--body-lh);
}

.page-products .perf-media {
  max-width: 480px;
}

.page-products .perf-more {
  margin: 18px 0 0;
  color: var(--text-dim);
  line-height: var(--body-lh);
}

.page-products .perf-more a {
  color: var(--accent);
  font-weight: 700;
}

/* 05 下载安装 */
.page-products .download-zone {
  position: relative;
  overflow: hidden;
  padding: 36px 24px;
  background: var(--surface);
  border: 2px solid var(--border);
  box-shadow: 14px 14px 0 var(--shadow);
}

.page-products .download-zone::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-soft), var(--cyan));
}

.page-products .download-copy .section-title {
  margin-top: 8px;
}

.page-products .download-text {
  max-width: 40em;
  margin: 14px 0;
  color: var(--text-dim);
  line-height: var(--body-lh);
}

.page-products .download-more {
  margin: 16px 0 0;
  color: var(--text-dim);
  font-size: 0.875rem;
  line-height: var(--body-lh);
}

.page-products .download-more a {
  color: var(--accent);
  font-weight: 700;
}

.page-products .download-actions {
  display: grid;
  gap: 14px;
  margin-top: 28px;
}

.page-products .download-btn {
  position: relative;
  overflow: hidden;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 16px 24px;
  background: linear-gradient(135deg, var(--accent), var(--accent-soft));
  border: none;
  color: var(--bg);
  font-weight: 800;
  box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.35);
  text-decoration: none;
}

.page-products .download-btn::after {
  content: "";
  position: absolute;
  top: 0;
  left: -35%;
  width: 25%;
  height: 100%;
  background: linear-gradient(105deg, transparent, rgba(255, 255, 255, 0.55), transparent);
  animation: pp-scan 2.8s ease-in-out infinite;
}

.page-products .download-btn-label {
  font-size: 1.15rem;
  line-height: 1.2;
}

.page-products .download-btn-sub {
  font-size: 0.75rem;
  font-weight: 400;
  opacity: 0.85;
}

.page-products .download-alt {
  justify-self: start;
}

.page-products .download-qr {
  max-width: 220px;
  margin-top: 28px;
}

.page-products .download-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  justify-content: center;
  margin: 24px 0 0;
  padding-top: 18px;
  border-top: 1px dashed var(--border);
  color: var(--text-dim);
  font-size: 0.875rem;
  letter-spacing: 0.06em;
}

/* 动效 */
@keyframes pp-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.35; transform: scale(0.7); }
}

@keyframes pp-scan {
  0% { left: -35%; }
  55%, 100% { left: 135%; }
}

@keyframes pp-gauge {
  to { width: 88%; }
}

@keyframes pp-ring {
  0% { transform: scale(1); opacity: 0.8; }
  100% { transform: scale(1.7); opacity: 0; }
}

/* 响应式 */
@media (min-width: 768px) {
  .page-products .section-head-row {
    grid-template-columns: 1fr auto;
    align-items: end;
    gap: 32px;
  }

  .page-products .section-head-row .section-desc {
    text-align: right;
  }

  .page-products .dual-stage {
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
  }

  .page-products .screen-card--live {
    transform: translateX(18px);
    z-index: 1;
  }

  .page-products .screen-card--replay {
    transform: translateX(-18px);
  }

  .page-products .sync-line {
    position: absolute;
    left: 50%;
    top: 50%;
    z-index: 5;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 68px;
    height: 68px;
    transform: translate(-50%, -50%);
    border: 2px solid var(--cyan);
    border-radius: 50%;
    background: var(--bg);
    box-shadow: 0 0 18px rgba(0, 212, 255, 0.25);
  }

  .page-products .sync-line::after {
    content: "";
    position: absolute;
    inset: -8px;
    border: 1px solid var(--cyan);
    border-radius: 50%;
    animation: pp-ring 2s ease-out infinite;
  }

  .page-products .sync-line-core {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--cyan);
  }

  .page-products .path-steps {
    max-width: 660px;
    margin-right: auto;
    margin-left: auto;
  }

  .page-products .restore-media {
    margin-top: 0;
  }

  .page-products .perf-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-products .perf-value {
    font-size: clamp(2.2rem, 4vw, 3.6rem);
  }

  .page-products .download-zone {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 28px 32px;
    padding: 40px;
  }

  .page-products .download-copy {
    grid-column: 1 / -1;
  }

  .page-products .download-actions {
    margin-top: 0;
  }

  .page-products .download-qr {
    margin-top: 0;
  }

  .page-products .download-trust {
    grid-column: 1 / -1;
  }
}

@media (min-width: 1024px) {
  .page-products .download-zone {
    grid-template-columns: 1fr 220px 170px;
    align-items: center;
  }

  .page-products .download-copy {
    grid-column: 1;
  }

  .page-products .download-qr {
    max-width: 170px;
  }
}