/* 生产流程组件：Preview + Timeline 布局与联动动效 */

#process {
  scroll-margin-top: 5rem;
}

@media (prefers-reduced-motion: reduce) {
  .process-timeline__item,
  .process-preview__slide,
  .process-preview__glow,
  .process-timeline__progress-glow,
  .process-preview__frame {
    animation: none !important;
    transition: none !important;
    transform: none !important;
  }
}

/* ---- 布局 ---- */
.process-component__layout {
  display: grid;
  gap: 2rem;
  max-width: 1120px;
  margin: 0 auto;
}

@media (width >= 1024px) {
  .process-component__layout {
    grid-template-columns: minmax(300px, 400px) minmax(0, 1fr);
    gap: 2.5rem;
    align-items: start;
  }

  .process-preview {
    position: sticky;
    top: 6.5rem;
  }
}

/* ---- Preview 子组件 ---- */
.process-preview__frame {
  position: relative;
  overflow: hidden;
  border-radius: 1rem;
  border: 1px solid rgba(48, 86, 211, 0.15);
  background: #fff;
  box-shadow: 0 16px 48px rgba(15, 23, 42, 0.08);
}

.dark .process-preview__frame {
  background: #1f2937;
  border-color: rgba(255, 255, 255, 0.08);
}

.process-preview__glow {
  pointer-events: none;
  position: absolute;
  inset: -20%;
  z-index: 2;
  opacity: 0;
  background: radial-gradient(circle at 50% 60%, rgba(48, 86, 211, 0.22), transparent 55%);
  transition: opacity 0.4s ease;
}

.process-component.is-entered .process-preview__glow {
  opacity: 1;
}

.process-preview__slides {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: linear-gradient(135deg, #eef2ff 0%, #f0fdf4 100%);
}

.dark .process-preview__slides {
  background: linear-gradient(135deg, #1e293b 0%, #111827 100%);
}

.process-preview__slide {
  position: absolute;
  inset: 0;
  margin: 0;
  opacity: 0;
  transform: scale(1.04);
  transition: opacity 0.5s ease, transform 0.55s ease;
  pointer-events: none;
}

.process-preview__slide.is-active {
  opacity: 1;
  transform: scale(1);
  pointer-events: auto;
  z-index: 1;
}

.process-preview__slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.process-preview__slide figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 1.25rem 1.5rem;
  background: linear-gradient(to top, rgba(9, 14, 52, 0.82), transparent);
  color: #fff;
  font-size: 1.125rem;
  font-weight: 600;
}

.process-preview__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border-top: 1px solid rgba(48, 86, 211, 0.1);
}

.dark .process-preview__meta {
  border-top-color: rgba(255, 255, 255, 0.08);
}

.process-preview__badge {
  display: inline-flex;
  align-items: baseline;
  gap: 0.35rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #3056d3;
}

.process-preview__step-num {
  display: inline-block;
  font-size: 1.5rem;
  line-height: 1;
  color: #111928;
}

.dark .process-preview__step-num {
  color: #fff;
}

.process-preview__total {
  color: #637381;
  font-size: 0.875rem;
  letter-spacing: 0;
  text-transform: none;
}

.process-preview__hint {
  margin: 0;
  font-size: 0.75rem;
  color: #637381;
  text-align: right;
}

/* ---- Timeline 子组件 ---- */
.process-timeline {
  position: relative;
  padding-left: 2rem;
}

.process-timeline__progress {
  position: absolute;
  left: 0.55rem;
  top: 1.5rem;
  bottom: 1.5rem;
  width: 2px;
  background: rgba(48, 86, 211, 0.15);
  border-radius: 9999px;
  overflow: visible;
}

.process-timeline__progress-fill {
  width: 100%;
  height: 8%;
  background: linear-gradient(180deg, #3056d3, #13c296);
  border-radius: inherit;
  transition: height 0.2s ease;
}

.process-timeline__progress-glow {
  position: absolute;
  left: 50%;
  width: 10px;
  height: 10px;
  margin-left: -5px;
  margin-top: -5px;
  border-radius: 50%;
  background: #13c296;
  box-shadow: 0 0 12px rgba(19, 194, 150, 0.65);
  opacity: 0;
  pointer-events: none;
  transition: top 0.2s ease;
}

.process-timeline__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.process-timeline__item {
  margin-bottom: 0.875rem;
  border-radius: 0.875rem;
  border: 1px solid rgba(48, 86, 211, 0.12);
  background: #fff;
  opacity: 0.62;
  transform: translateX(0);
  transition:
    opacity 0.35s ease,
    transform 0.35s ease,
    box-shadow 0.3s ease,
    border-color 0.3s ease;
}

.process-timeline__link {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "thumb thumb"
    "dot body";
  gap: 0.75rem 1rem;
  align-items: start;
  padding: 1rem 1.25rem;
  color: inherit;
  text-decoration: none;
  cursor: pointer;
}

@media (width >= 1024px) {
  .process-timeline__link {
    grid-template-areas: "dot body";
    padding: 1.25rem 1.5rem;
  }
}

.dark .process-timeline__item {
  background: #1f2937;
  border-color: rgba(255, 255, 255, 0.08);
}

.process-component.is-entered .process-timeline__item.is-visible,
.process-timeline__item.is-visible {
  opacity: 0.62;
  transform: translateX(0);
}

.process-timeline__item.is-passed {
  opacity: 0.82;
}

.process-timeline__item.is-active {
  opacity: 1;
  border-color: rgba(48, 86, 211, 0.45);
  box-shadow: 0 10px 28px rgba(48, 86, 211, 0.14);
}

.process-timeline__item.is-hover,
.process-timeline__item:has(.process-timeline__link:hover),
.process-timeline__item:has(.process-timeline__link:focus-visible) {
  border-color: rgba(48, 86, 211, 0.35);
  box-shadow: 0 8px 24px rgba(48, 86, 211, 0.1);
}

.process-timeline__link:focus-visible {
  outline: 2px solid rgba(48, 86, 211, 0.45);
  outline-offset: 2px;
}

.process-timeline__thumb {
  grid-area: thumb;
  overflow: hidden;
  border-radius: 0.65rem;
  aspect-ratio: 16 / 9;
  border: 1px solid rgba(48, 86, 211, 0.1);
}

.process-timeline__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease;
}

.process-timeline__item.is-active .process-timeline__thumb img {
  transform: scale(1.04);
}

.process-timeline__dot {
  grid-area: dot;
  flex-shrink: 0;
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 9999px;
  background: rgba(48, 86, 211, 0.12);
  color: #3056d3;
  font-weight: 700;
  font-size: 0.875rem;
  transition:
    background 0.3s ease,
    color 0.3s ease,
    box-shadow 0.3s ease,
    transform 0.3s ease;
}

.process-timeline__body {
  grid-area: body;
  min-width: 0;
}

.process-timeline__title {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: #111928;
}

.dark .process-timeline__title {
  color: #fff;
}

.process-timeline__desc {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.55;
  color: #637381;
}

.dark .process-timeline__desc {
  color: #9ca3af;
}

.process-timeline__item.is-active .process-timeline__dot {
  background: #3056d3;
  color: #fff;
  box-shadow: 0 0 0 4px rgba(48, 86, 211, 0.2);
  transform: scale(1.06);
}

/* 发展历程变体：年份圆点略宽以容纳四位数字 */
[data-process-variant="history"] .process-timeline__dot {
  width: auto;
  min-width: 2.5rem;
  padding-inline: 0.5rem;
  font-size: 0.75rem;
  letter-spacing: -0.02em;
}

/* 发展历程变体：里程碑图为 1:1 方图，完整显示不裁切 */
[data-process-variant="history"] .process-preview__slides {
  aspect-ratio: 1 / 1;
  background: linear-gradient(135deg, #eef2ff 0%, #f0fdf4 100%);
}

.dark [data-process-variant="history"] .process-preview__slides {
  background: linear-gradient(135deg, #1e293b 0%, #111827 100%);
}

[data-process-variant="history"] .process-preview__slide img,
[data-process-variant="history"] .process-timeline__thumb img {
  object-fit: contain;
  object-position: center;
}

[data-process-variant="history"] .process-timeline__thumb {
  aspect-ratio: 1 / 1;
}

[data-process-variant="history"] .process-timeline__item.is-active .process-timeline__thumb img {
  transform: none;
}

/* 桌面端：左侧预览区与右侧时间轴列表等高 */
@media (width >= 1024px) {
  [data-process-variant="history"] .process-component__layout {
    align-items: stretch;
  }

  [data-process-variant="history"] .process-preview {
    display: flex;
    flex-direction: column;
    height: 100%;
  }

  [data-process-variant="history"] .process-preview__frame {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
    height: 100%;
  }

  [data-process-variant="history"] .process-preview__slides {
    flex: 1 1 auto;
    aspect-ratio: auto;
    min-height: 0;
  }
}