.page-products {
  --tool-rail-w: minmax(0, 3fr);
  --tool-main-w: minmax(0, 9fr);
  --tool-gap: clamp(1.5rem, 3vw, 2.75rem);
}

/* 首屏 */
.page-products .tool-hero {
  display: grid;
  gap: clamp(1.5rem, 3.5vw, 3rem);
  padding-block: clamp(1.75rem, 4vw, 3.25rem) clamp(2rem, 5vw, 3.75rem);
  border-bottom: 1px solid var(--edge);
}

.page-products .tool-hero__main {
  display: flex;
  flex-direction: column;
  gap: clamp(0.85rem, 2vw, 1.35rem);
}

.page-products .tool-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.04em;
  font-size: clamp(2rem, 5.2vw, 3.6rem);
  line-height: 0.98;
  color: var(--fog);
  margin: 0;
  max-width: 18ch;
}

.page-products .tool-hero__lead {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(0.95rem, 1.4vw, 1.0625rem);
  line-height: 1.78;
  color: var(--mute);
}

.page-products .tool-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.25rem;
}

.page-products .tool-hero__facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  margin: 0.5rem 0 0;
  padding: 0.9rem 0 0;
  list-style: none;
  border-top: 1px solid var(--edge);
}

.page-products .tool-hero__facts li {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-width: 0;
}

.page-products .tool-hero__num {
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--pulse);
}

.page-products .tool-hero__factlabel {
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--mute);
}

.page-products .tool-hero__media {
  margin: 0;
  position: relative;
}

.page-products .tool-hero__media .media-frame {
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%);
}

/* 主体栅格 */
.page-products .tool-body {
  display: grid;
  gap: var(--tool-gap);
  padding-block: clamp(1.75rem, 4vw, 3rem) clamp(2.5rem, 6vw, 4.5rem);
}

.page-products .tool-main {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

/* 左侧窄栏 */
.page-products .tool-rail {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-width: 0;
}

.page-products .rail-card {
  background: var(--panel);
  border: 1px solid var(--edge);
  padding: 1rem 1.05rem 1.1rem;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}

.page-products .rail-card--link {
  background: var(--night);
  border-style: dashed;
}

.page-products .rail-card__title {
  margin: 0 0 0.7rem;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--pulse-soft);
  font-family: var(--font-mono);
}

.page-products .rail-card__note {
  margin: 0.75rem 0 0;
  font-size: 0.8125rem;
  line-height: 1.65;
  color: var(--mute);
}

.page-products .rail-card__btn {
  margin-top: 0.85rem;
  width: 100%;
  text-align: center;
}

.page-products .rail-status {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.page-products .rail-status__row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: var(--fog);
}

.page-products .rail-status__label {
  flex: 1 1 auto;
  min-width: 0;
}

.page-products .rail-status__dot {
  flex: none;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--pulse);
  box-shadow: 0 0 0 3px rgba(42, 245, 176, 0.14);
  animation: page-products-pulse 2.8s ease-in-out infinite;
}

.page-products .rail-status__dot--warn {
  background: var(--flare);
  box-shadow: 0 0 0 3px rgba(255, 91, 46, 0.16);
}

.page-products .rail-status__tag {
  flex: none;
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
}

.page-products .rail-status__tag--warn {
  color: var(--flare);
  border-color: rgba(255, 91, 46, 0.5);
}

@keyframes page-products-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.45; }
}

.page-products .rail-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  font-size: 0.875rem;
}

.page-products .rail-nav__list a {
  color: var(--fog);
}

/* 章节 */
.page-products .tool-section {
  display: flex;
  flex-direction: column;
  gap: clamp(1.25rem, 2.6vw, 2rem);
  padding-block: clamp(1.75rem, 3.5vw, 2.75rem);
}

.page-products .tool-section:first-child {
  padding-top: 0;
}

.page-products .tool-section__head {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  max-width: 68ch;
}

.page-products .tool-section__head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.035em;
  font-size: clamp(1.45rem, 3vw, 2.3rem);
  line-height: 1.08;
  color: var(--fog);
}

.page-products .tool-section__intro {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.78;
  color: var(--mute);
}

/* 场景清单 */
.page-products .scene-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--edge);
  border: 1px solid var(--edge);
}

.page-products .scene-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.9rem;
  padding: 1rem 1.05rem;
  background: var(--panel);
  border-left: 3px solid transparent;
  transition: border-color var(--dur) ease, background-color var(--dur) ease;
}

.page-products .scene-item:hover,
.page-products .scene-item:focus-within {
  border-left-color: var(--pulse);
  background: var(--rail);
}

.page-products .scene-item__code {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--pulse);
  padding-top: 0.15rem;
}

.page-products .scene-item__body h3 {
  margin: 0 0 0.4rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--fog);
  letter-spacing: -0.01em;
}

.page-products .scene-item__body p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.72;
  color: var(--mute);
}

.page-products .scene-figure,
.page-products .cap-figure,
.page-products .steps-figure,
.page-products .compat-figure {
  margin: 0;
  max-width: 46rem;
}

.page-products .scene-figure .media-frame,
.page-products .cap-figure .media-frame,
.page-products .steps-figure .media-frame,
.page-products .compat-figure .media-frame {
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%);
}

/* 能力矩阵 */
.page-products .cap-layout {
  display: grid;
  gap: clamp(1.25rem, 2.5vw, 2rem);
}

.page-products .cap-grid {
  display: grid;
  gap: 1px;
  background: var(--edge);
  border: 1px solid var(--edge);
  grid-template-columns: minmax(0, 1fr);
}

.page-products .cap-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 1.15rem 1.05rem 1.25rem;
  background: var(--panel);
  transition: background-color var(--dur) ease;
}

.page-products .cap-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--pulse), transparent 72%);
  opacity: 0.35;
  transition: opacity var(--dur) ease;
}

.page-products .cap-card:hover::after,
.page-products .cap-card:focus-within::after {
  opacity: 1;
}

.page-products .cap-card:hover {
  background: var(--rail);
}

.page-products .cap-card__num {
  margin: 0;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--pulse);
}

.page-products .cap-card h3 {
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--fog);
}

.page-products .cap-card p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.72;
  color: var(--mute);
}

.page-products .cap-card__result {
  margin-top: auto;
  padding-top: 0.6rem;
  border-top: 1px dashed var(--edge);
  font-size: 0.8125rem !important;
  color: var(--pulse-soft) !important;
}

/* 三步流程 */
.page-products .step-list {
  border-top: 1px solid var(--edge);
}

.page-products .step {
  border-bottom: 1px solid var(--edge);
}

.page-products .step__head {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.page-products .step__trigger {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.8rem;
  width: 100%;
  padding: 0.95rem 0.35rem;
  background: transparent;
  border: 0;
  color: var(--fog);
  text-align: left;
  cursor: pointer;
  transition: background-color var(--dur) ease, padding-left var(--dur) ease;
}

.page-products .step__trigger:hover,
.page-products .step__trigger:focus-visible {
  background: var(--rail);
  padding-left: 0.75rem;
  outline: none;
}

.page-products .step__trigger:focus-visible {
  box-shadow: inset 0 0 0 1px var(--pulse);
}

.page-products .step__num {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--pulse);
  letter-spacing: 0.02em;
}

.page-products .step__title {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  min-width: 0;
}

.page-products .step__meta {
  font-size: 0.75rem;
  color: var(--mute);
  font-family: var(--font-mono);
  white-space: nowrap;
}

.page-products .step__panel {
  overflow: hidden;
}

.page-products .step__inner {
  padding: 0.15rem 0.35rem 1.2rem 2.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.page-products .step__inner > p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--mute);
}

.page-products .step__list {
  margin: 0;
  padding: 0 0 0 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--fog);
}

.page-products .step__list li::marker {
  color: var(--pulse);
}

.page-products .step__done {
  margin: 0;
  padding: 0.55rem 0.75rem;
  background: rgba(42, 245, 176, 0.08);
  border-left: 3px solid var(--pulse);
  color: var(--pulse-soft) !important;
  font-size: 0.8125rem !important;
  line-height: 1.6;
}

/* 兼容表 */
.page-products .compat-scroll {
  border: 1px solid var(--edge);
}

.page-products .compat-table {
  min-width: 40rem;
  width: 100%;
}

.page-products .compat-table td {
  vertical-align: top;
}

.page-products .compat-table tbody tr {
  transition: background-color var(--dur) ease;
}

.page-products .compat-table tbody tr:hover {
  background: var(--rail);
}

.page-products .compat-table tbody tr:hover td:first-child {
  box-shadow: inset 3px 0 0 var(--pulse);
}

.page-products .label-tag--warn {
  color: var(--flare);
  border-color: rgba(255, 91, 46, 0.5);
}

/* 版本演进 */
.page-products .timeline {
  border-top: 1px solid var(--edge);
  padding-top: clamp(1.1rem, 2.4vw, 1.6rem);
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.page-products .timeline__title {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--fog);
}

.page-products .timeline__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.85rem;
}

.page-products .timeline__item {
  display: grid;
  grid-template-columns: 3.4rem minmax(0, 1fr);
  gap: 0.85rem;
  align-items: baseline;
  padding-bottom: 0.85rem;
  border-bottom: 1px dashed var(--edge);
}

.page-products .timeline__item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-products .timeline__year {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--amber);
  letter-spacing: 0.02em;
}

.page-products .timeline__text {
  font-size: 0.875rem;
  line-height: 1.72;
  color: var(--mute);
}

.page-products .timeline__foot {
  margin: 0;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--mute);
}

/* 后续支持 */
.page-products .after-grid {
  display: grid;
  gap: 1rem;
}

.page-products .after-panel {
  background: var(--panel);
  border: 1px solid var(--edge);
  padding: 1.1rem 1.15rem 1.25rem;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.page-products .after-panel--accent {
  background: var(--rail);
  border-color: var(--pulse);
}

.page-products .after-panel h3 {
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--fog);
}

.page-products .after-panel > p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.72;
  color: var(--mute);
}

.page-products .after-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--mute);
}

.page-products .after-list__k {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--pulse);
  margin-bottom: 0.1rem;
}

.page-products .after-panel__note {
  font-size: 0.8125rem !important;
  color: var(--pulse-soft) !important;
}

.page-products .after-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 0.15rem;
}

.page-products .after-panel__contact {
  font-size: 0.8125rem !important;
  color: var(--mute) !important;
  border-top: 1px dashed var(--edge);
  padding-top: 0.6rem;
}

/* 断点 */
@media (min-width: 640px) {
  .page-products .cap-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .after-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .timeline__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem 1.5rem;
  }

  .page-products .timeline__item {
    grid-template-columns: 3.2rem minmax(0, 1fr);
    border-bottom: 0;
    padding-bottom: 0;
    padding-left: 0.75rem;
    border-left: 2px solid var(--edge);
  }
}

@media (min-width: 980px) {
  .page-products .tool-hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
  }

  .page-products .tool-body {
    grid-template-columns: var(--tool-rail-w) var(--tool-main-w);
    align-items: start;
  }

  .page-products .tool-rail {
    position: sticky;
    top: 1.5rem;
  }

  .page-products .cap-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-products .scene-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .scene-item {
    padding: 1.15rem 1.2rem;
  }

  .page-products .after-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  // 保持两列宽度均衡
  }
}

@media (min-width: 1180px) {
  .page-products .cap-layout {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }

  .page-products .cap-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .scene-figure {
    max-width: 100%;
  }
}

@media (max-width: 380px) {
  .page-products .tool-hero__facts {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.55rem;
  }

  .page-products .step__trigger {
    grid-template-columns: auto minmax(0, 1fr);
    row-gap: 0.25rem;
  }

  .page-products .step__meta {
    grid-column: 2;
  }
}
</main>