.page-products {
  --plat-hair: 1px solid var(--gray-300);
  --plat-dark-hair: 1px solid rgba(255, 255, 255, 0.2);
  background: var(--gray-050);
  color: var(--ink-900);
}

/* ---------- 首屏 ---------- */
.page-products .plat-hero {
  background: var(--ink-900);
  color: var(--white);
  padding-bottom: 1.75rem;
}

.page-products .plat-hero__inner {
  display: grid;
  gap: 1.5rem;
  padding-top: 1.5rem;
}

.page-products .plat-hero__frame {
  position: relative;
  padding: 2.25rem 1.15rem 1.5rem;
  border: var(--plat-dark-hair);
  background: linear-gradient(180deg, rgba(11, 74, 127, 0.42), rgba(5, 7, 10, 0) 62%);
}

.page-products .plat-hero__frame::before,
.page-products .plat-hero__frame::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 9px;
  pointer-events: none;
  background-image: repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.38) 0 1px, transparent 1px 16px);
  opacity: 0.65;
}

.page-products .plat-hero__frame::before { top: 0; }
.page-products .plat-hero__frame::after { bottom: 0; }

.page-products .plat-hero__tag,
.page-products .plat-hero__stamp {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.62);
}

.page-products .plat-hero__tag { top: 0.85rem; left: 1.15rem; }
.page-products .plat-hero__stamp { right: 1.15rem; bottom: 0.85rem; color: var(--orange-500); }

.page-products .plat-hero .eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--orange-500);
  margin: 0 0 0.6rem;
}

.page-products .plat-hero__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(1.85rem, 7.4vw, 3.15rem);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.02em;
  max-width: 18em;
}

.page-products .plat-hero__lede {
  margin: 1rem 0 0;
  max-width: 44em;
  color: rgba(255, 255, 255, 0.78);
  line-height: 1.8;
  font-size: 1rem;
}

.page-products .plat-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.4rem;
}

.page-products .plat-hero__actions .btn {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  padding: 0.7rem 1.15rem;
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: transparent;
  color: var(--white);
  font-size: 14px;
  font-weight: 700;
  transition: background var(--ease), border-color var(--ease), color var(--ease);
}

.page-products .plat-hero__actions .btn--accent {
  background: var(--orange-500);
  border-color: var(--orange-500);
  color: var(--white);
}

.page-products .plat-hero__actions .btn--accent:hover { background: #e75c12; border-color: #e75c12; }
.page-products .plat-hero__actions .btn--ghost:hover { border-color: var(--white); background: rgba(255, 255, 255, 0.08); }

.page-products .plat-media {
  margin: 0;
  border: var(--plat-hair);
  background: var(--white);
}

.page-products .plat-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .plat-media .media-caption {
  display: block;
  padding: 0.55rem 0.8rem;
  border-top: var(--plat-hair);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-mute);
}

.page-products .plat-hero__media {
  border: var(--plat-dark-hair);
  background: var(--ink-800);
}

.page-products .plat-hero__media .media-caption {
  border-top: var(--plat-dark-hair);
  color: rgba(255, 255, 255, 0.6);
}

.page-products .plat-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.75rem;
  margin: 1.25rem 0 0;
  padding: 0.9rem 0 0;
  border-top: var(--plat-dark-hair);
  list-style: none;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
}

.page-products .plat-hero__meta .num {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
  margin-right: 0.35rem;
}

/* ---------- 主体网格与索引 ---------- */
.page-products .plat-body {
  padding: 1.5rem 0 3.5rem;
}

.page-products .plat-index {
  display: flex;
  gap: 1rem;
  overflow-x: auto;
  padding-bottom: 0.75rem;
  margin-bottom: 1.25rem;
  border-bottom: var(--plat-hair);
}

.page-products .plat-index__link {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--text-mute);
  text-decoration: none;
  padding-bottom: 0.25rem;
  border-bottom: 2px solid transparent;
  transition: color var(--ease), border-color var(--ease);
}

.page-products .plat-index__link:hover {
  color: var(--blue-600);
  border-bottom-color: var(--orange-500);
}

/* ---------- 章节抽屉 ---------- */
.page-products .slot {
  display: grid;
  gap: 0.75rem;
  padding: 2.25rem 0;
  border-top: var(--plat-hair);
}

.page-products .slot:first-child { border-top: 0; }

.page-products .slot__num {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--orange-500);
}

.page-products .slot__main { min-width: 0; }

.page-products .slot__main .eyebrow {
  display: block;
  margin: 0 0 0.4rem;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--blue-600);
}

.page-products .slot__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(1.4rem, 5.4vw, 2rem);
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: -0.01em;
}

.page-products .slot__lede {
  margin: 0.85rem 0 0;
  max-width: var(--measure);
  color: var(--text-soft);
  line-height: 1.8;
}

.page-products .slot__main .prose {
  max-width: var(--measure);
  color: var(--text-soft);
  line-height: 1.8;
  margin: 0.85rem 0 0;
}

/* ---------- 横向卡片阵列 ---------- */
.page-products .rail {
  display: flex;
  gap: 1rem;
  margin: 1.5rem -0.25rem 0;
  padding: 0.25rem 0.25rem 1rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.page-products .rail__item {
  flex: 0 0 86%;
  min-width: 255px;
  max-width: 420px;
  scroll-snap-align: start;
}

.page-products .card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1.2rem 1.15rem 1.1rem 1.35rem;
  background: var(--white);
  border: var(--plat-hair);
  transition: border-color var(--ease), background var(--ease), opacity var(--ease);
}

.page-products .card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--blue-600);
  transition: width var(--ease), background var(--ease);
}

.page-products .card:hover,
.page-products .card:focus-within {
  border-color: var(--blue-400);
}

.page-products .card:hover::before,
.page-products .card:focus-within::before {
  width: 7px;
  background: var(--orange-500);
}

.page-products .card__id {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--blue-600);
}

.page-products .card__title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 800;
  line-height: 1.4;
}

.page-products .card__desc {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.75;
  color: var(--text-soft);
}

.page-products .card__foot {
  margin: auto 0 0;
  padding-top: 0.6rem;
  border-top: var(--plat-hair);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-mute);
}

.page-products .link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.35rem;
  font-size: 13px;
  font-weight: 700;
  color: var(--blue-600);
  text-decoration: none;
  border-bottom: 1px solid var(--gray-300);
  padding-bottom: 0.15rem;
  transition: color var(--ease), border-color var(--ease);
}

.page-products .link-arrow::after {
  content: "→";
  color: var(--orange-500);
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity var(--ease), transform var(--ease);
}

.page-products .link-arrow:hover,
.page-products .link-arrow:focus-visible {
  color: var(--ink-900);
  border-bottom-color: var(--orange-500);
}

.page-products .link-arrow:hover::after,
.page-products .link-arrow:focus-visible::after {
  opacity: 1;
  transform: translateX(0);
}

.page-products [data-search-item][data-filtered="out"] { opacity: 0.24; }

/* ---------- 数据条 ---------- */
.page-products .stat-strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 1.5rem;
  background: var(--gray-300);
  border: var(--plat-hair);
}

.page-products .stat {
  background: var(--white);
  padding: 0.95rem 1rem;
}

.page-products .stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.2rem, 4.4vw, 1.6rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--ink-900);
}

.page-products .stat__label {
  display: block;
  margin-top: 0.35rem;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--text-mute);
}

/* ---------- 命中路径 ---------- */
.page-products .hitpath {
  margin-top: 1.5rem;
  padding: 1.15rem;
  background: var(--white);
  border: var(--plat-hair);
}

.page-products .hitpath svg {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
}

.page-products .hitpath__note {
  margin: 0.75rem 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--text-mute);
}

/* ---------- 归档双栏 ---------- */
.page-products .arch {
  display: grid;
  gap: 1.25rem;
  margin-top: 1rem;
}

.page-products .tagbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.25rem;
}

.page-products .tag {
  display: inline-block;
  padding: 0.32rem 0.75rem;
  border: 1px solid var(--gray-300);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-soft);
  background: var(--white);
  transition: border-color var(--ease), color var(--ease), background var(--ease);
}

.page-products .tag:hover {
  border-color: var(--blue-400);
  color: var(--blue-600);
}

.page-products .tag[data-active="true"] {
  border-color: var(--orange-500);
  background: var(--orange-100);
  color: var(--ink-900);
}

.page-products .tag--verify {
  border-color: var(--verify-600);
  color: var(--verify-600);
  background: var(--white);
}

/* ---------- 层级叠放 ---------- */
.page-products .layer-stack {
  margin-top: 1.5rem;
  padding-bottom: 1rem;
}

.page-products .layer {
  padding: 1.1rem 1.15rem;
}

.page-products .layer--glass {
  position: relative;
  z-index: 2;
  margin: 0 auto 0 0;
  width: 100%;
  color: var(--white);
  background: rgba(11, 74, 127, 0.86);
  border: 1px solid rgba(255, 255, 255, 0.28);
  backdrop-filter: blur(6px);
}

.page-products .layer--solid {
  margin: -0.5rem 0 0 auto;
  width: 100%;
  background: var(--white);
  border: var(--plat-hair);
  border-top: 3px solid var(--blue-600);
  padding-top: 1.4rem;
}

.page-products .layer__label {
  margin: 0 0 0.75rem;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--blue-400);
}

.page-products .layer--solid .layer__label { color: var(--text-mute); }

.page-products .layer--solid p {
  margin: 0;
  line-height: 1.8;
  color: var(--text-soft);
  font-size: 0.95rem;
}

.page-products .ports {
  display: grid;
  gap: 0.5rem;
}

.page-products .port {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0.85rem;
  border: 1px solid rgba(255, 255, 255, 0.24);
  background: var(--glass);
  font-size: 14px;
  font-weight: 700;
}

.page-products .port__key {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--orange-500);
}

/* ---------- 折叠项 ---------- */
.page-products .acc-group {
  margin-top: 1.5rem;
  border-top: var(--plat-hair);
}

.page-products .acc {
  border-bottom: var(--plat-hair);
  background: var(--white);
}

.page-products .acc__sum {
  position: relative;
  padding: 1rem 2.5rem 1rem 1rem;
  cursor: pointer;
  list-style: none;
  font-size: 0.98rem;
  font-weight: 700;
  line-height: 1.5;
  transition: color var(--ease);
}

.page-products .acc__sum::-webkit-details-marker { display: none; }

.page-products .acc__sum::after {
  content: "+";
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--blue-600);
  transition: color var(--ease);
}

.page-products .acc[open] .acc__sum::after {
  content: "−";
  color: var(--orange-500);
}

.page-products .acc__sum:hover { color: var(--blue-600); }

.page-products .acc__body {
  padding: 0 1rem 1.1rem;
}

.page-products .acc__body p {
  margin: 0;
  max-width: var(--measure);
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--text-soft);
}

/* ---------- 版本时间线 ---------- */
.page-products .version-panel {
  margin-top: 1.5rem;
  padding: 1.6rem 1.25rem;
  background: var(--ink-900);
  color: var(--white);
}

.page-products .vline {
  position: relative;
  padding-left: 2.1rem;
}

.page-products .vline::before {
  content: "";
  position: absolute;
  left: 0.42rem;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 1px;
  background: linear-gradient(180deg, var(--blue-400), rgba(46, 123, 184, 0.12));
}

.page-products .vnode {
  position: relative;
  padding-bottom: 1.5rem;
}

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

.page-products .vnode::before {
  content: "";
  position: absolute;
  left: -2.1rem;
  top: 0.55rem;
  width: 9px;
  height: 9px;
  background: var(--ink-900);
  border: 2px solid var(--blue-400);
}

.page-products .vnode--current::before {
  background: var(--orange-500);
  border-color: var(--orange-500);
}

.page-products .vnode__ver {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 6vw, 2.4rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-products .vnode--current .vnode__ver { color: var(--orange-500); }

.page-products .vnode__desc {
  margin: 0.55rem 0 0;
  max-width: 40em;
  font-size: 0.94rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.72);
}

/* ---------- 场景 ---------- */
.page-products .scene-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1.5rem;
}

.page-products .scene {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  padding: 1.2rem 1.1rem;
  background: var(--white);
  border: var(--plat-hair);
  border-top: 3px solid var(--blue-600);
  transition: border-color var(--ease);
}

.page-products .scene:hover { border-color: var(--blue-400); border-top-color: var(--orange-500); }

.page-products .scene__id {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--blue-600);
}

.page-products .scene__title {
  margin: 0;
  font-size: 1.02rem;
  font-weight: 800;
  line-height: 1.4;
}

.page-products .scene__desc {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.75;
  color: var(--text-soft);
}

.page-products .scene__map {
  margin: auto 0 0;
  padding-top: 0.7rem;
  border-top: var(--plat-hair);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-mute);
}

/* ---------- 服务 ---------- */
.page-products .svc-grid {
  display: grid;
  gap: 1px;
  margin-top: 1.5rem;
  background: var(--gray-300);
  border: var(--plat-hair);
}

.page-products .svc {
  background: var(--white);
  padding: 1.15rem 1.1rem;
}

.page-products .svc__title {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  font-weight: 800;
  line-height: 1.4;
}

.page-products .svc__desc {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.78;
  color: var(--text-soft);
}

.page-products .svc-contact {
  margin-top: 1.5rem;
  padding: 1.35rem 1.2rem;
  background: var(--white);
  border: var(--plat-hair);
  border-left: 4px solid var(--orange-500);
}

.page-products .svc-contact__lead {
  margin: 0;
  font-weight: 700;
  line-height: 1.6;
}

.page-products .svc-contact__line {
  margin: 0.6rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  overflow-wrap: anywhere;
}

.page-products .svc-contact__note {
  margin: 0.35rem 0 0;
  font-size: 13px;
  color: var(--text-mute);
}

.page-products .svc-contact__links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-top: 1.1rem;
}

.page-products .svc-contact__links .btn {
  display: inline-flex;
  align-items: center;
  padding: 0.65rem 1.1rem;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  background: var(--orange-500);
  color: var(--white);
  border: 1px solid var(--orange-500);
  transition: background var(--ease), border-color var(--ease);
}

.page-products .svc-contact__links .btn--accent:hover { background: #e75c12; border-color: #e75c12; }

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-products .plat-hero__inner { grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr); align-items: start; }
  .page-products .plat-hero__frame { padding: 2.5rem 1.75rem 1.75rem; }
  .page-products .stat-strip { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .page-products .arch { grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr); align-items: start; }
  .page-products .rail__item { flex-basis: 46%; }
  .page-products .scene-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .page-products .svc-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-products .layer--glass { width: 78%; }
  .page-products .layer--solid { width: 82%; }
}

@media (min-width: 1024px) {
  .page-products .plat-body {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 190px;
    gap: 3rem;
    align-items: start;
    padding-top: 2.5rem;
  }

  .page-products .plat-index {
    order: 2;
    position: sticky;
    top: 6.5rem;
    flex-direction: column;
    gap: 0.7rem;
    overflow: visible;
    padding: 0 0 0 1.25rem;
    margin-bottom: 0;
    border-bottom: 0;
    border-left: var(--plat-hair);
  }

  .page-products .plat-body__main { order: 1; min-width: 0; }

  .page-products .slot {
    grid-template-columns: 84px minmax(0, 1fr);
    gap: 2rem;
    padding: 3.25rem 0;
  }

  .page-products .slot__num { position: sticky; top: 6.5rem; }

  .page-products .rail__item { flex-basis: 33%; }

  .page-products .plat-hero__title { font-size: clamp(2.2rem, 3.4vw, 3.05rem); }
}

@media (min-width: 1280px) {
  .page-products .layer--glass { width: 68%; }
  .page-products .layer--solid { width: 72%; }
}

@media (prefers-reduced-motion: reduce) {
  .page-products *,
  .page-products *::before,
  .page-products *::after {
    transition-duration: 0ms !important;
  }
}
</main>