.page-products {
  --cat-rail: 240px;
  --cat-gap: clamp(16px, 3vw, 32px);
  --cat-anchor: 92px;
  color: var(--fog);
  background: linear-gradient(180deg, #061826 0%, #081d30 46%, #061826 100%);
}

.page-products .cat-sep {
  color: var(--line-strong);
  padding: 0 2px;
}

.page-products .spk-breadcrumb {
  margin-bottom: clamp(18px, 3vw, 28px);
}

/* ---------- 首屏 ---------- */
.page-products .cat-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 5vw, 52px) 0 clamp(34px, 6vw, 68px);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(53, 224, 208, 0.20) 0%, rgba(53, 224, 208, 0) 58%),
    radial-gradient(90% 70% at 4% 8%, rgba(255, 122, 61, 0.14) 0%, rgba(255, 122, 61, 0) 62%),
    linear-gradient(180deg, #061826 0%, #0B2239 74%, #061826 100%);
}

.page-products .cat-hero__glow {
  position: absolute;
  inset: auto -18% 12% auto;
  width: min(62vw, 520px);
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(53, 224, 208, 0.22) 0%, rgba(53, 224, 208, 0) 68%);
  filter: blur(6px);
  pointer-events: none;
  animation: cat-drift 18s ease-in-out infinite alternate;
}

@keyframes cat-drift {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to { transform: translate3d(-32px, -26px, 0) scale(1.08); }
}

.page-products .cat-hero__grid {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
}

.page-products .cat-hero__title {
  margin: 10px 0 14px;
  font-size: clamp(30px, 7.4vw, 58px);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.03em;
  color: var(--fog);
  text-wrap: balance;
}

.page-products .cat-hero__lede {
  max-width: 44ch;
  margin: 0;
  font-size: clamp(15px, 2.2vw, 17px);
  line-height: 1.78;
  color: var(--mist);
}

.page-products .cat-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(18px, 3vw, 26px);
}

.page-products .cat-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .cat-stat {
  padding: 14px 16px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: var(--surface-1);
  backdrop-filter: blur(6px);
}

.page-products .cat-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(24px, 5vw, 32px);
  line-height: 1.1;
  color: var(--cyan-300);
}

.page-products .cat-stat__label {
  display: block;
  margin-top: 5px;
  font-size: 12.5px;
  line-height: 1.4;
  color: var(--mist);
}

/* ---------- 通用区块 ---------- */
.page-products .cat-section {
  padding: clamp(38px, 7vw, 76px) 0;
  scroll-margin-top: var(--cat-anchor);
}

.page-products .cat-head {
  max-width: 720px;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-products .cat-head__title {
  margin: 10px 0 12px;
  font-size: clamp(23px, 4.6vw, 36px);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.02em;
  color: var(--fog);
  text-wrap: balance;
}

.page-products .cat-head__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

.page-products .cat-inline {
  color: var(--cyan-300);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 1px;
}

.page-products .cat-inline:hover,
.page-products .cat-inline:focus-visible {
  color: var(--orange-300);
  border-bottom-color: var(--orange-300);
}

/* ---------- 图片容器 ---------- */
.page-products .cat-figure {
  margin: 0 0 var(--cat-gap);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--ink-800);
  box-shadow: var(--shadow-soft);
}

.page-products .cat-figure--flush {
  margin-bottom: 0;
}

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

.page-products .cat-figure--portrait img {
  aspect-ratio: 3 / 4;
}

.page-products .cat-figure--square img {
  aspect-ratio: 1 / 1;
}

.page-products .cat-figure figcaption {
  padding: 12px 16px 14px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--mist);
  border-top: 1px solid var(--line-soft);
}

/* ---------- 主题簇 ---------- */
.page-products .cat-clusters {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-bottom: var(--cat-gap);
}

.page-products .cluster {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 20px 18px 16px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  background: linear-gradient(165deg, rgba(16, 44, 70, 0.82) 0%, rgba(11, 34, 57, 0.92) 100%);
  transition: border-color 0.28s ease, transform 0.28s ease;
}

.page-products .cluster::after {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  top: 0;
  height: 2px;
  border-radius: 0 0 2px 2px;
  background: linear-gradient(90deg, var(--cyan-500), rgba(53, 224, 208, 0));
}

.page-products .cluster:hover {
  border-color: var(--line-strong);
  transform: translateY(-3px);
}

.page-products .cluster__no {
  margin: 0 0 10px;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--ink-900);
  background: var(--cyan-500);
  border-radius: var(--r-sm);
}

.page-products .cluster__name {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--fog);
}

.page-products .cluster__desc {
  margin: 0 0 12px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-products .cluster__list {
  margin: 0 0 14px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 6px;
  font-size: 13px;
  line-height: 1.5;
  color: rgba(234, 247, 245, 0.86);
}

.page-products .cluster__list li {
  display: flex;
  gap: 8px;
}

.page-products .cluster__list .spk-mono {
  color: var(--cyan-300);
  font-size: 12px;
  flex: none;
}

.page-products .cluster__meta {
  margin: auto 0 0;
  padding-top: 10px;
  border-top: 1px dashed var(--line-soft);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.03em;
  color: var(--mist);
}

/* ---------- 图文两栏 ---------- */
.page-products .cat-split {
  display: grid;
  gap: var(--cat-gap);
  align-items: center;
}

.page-products .cat-split__text p {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-products .cat-split__text .cat-head__title {
  margin-top: 0;
}

/* ---------- 主题筛选 + 卡片组 ---------- */
.page-products .cat-layout {
  display: grid;
  gap: var(--cat-gap);
}

.page-products .cat-rail {
  padding: 16px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  background: var(--surface-2);
}

.page-products .cat-rail__title {
  margin: 0 0 12px;
  font-size: 12px;
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  color: var(--cyan-300);
}

.page-products .cat-rail__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-products .cat-rail__list::-webkit-scrollbar {
  display: none;
}

.page-products .cat-rail__list li {
  flex: none;
}

.page-products .cat-rail .spk-chip {
  display: inline-block;
  white-space: nowrap;
  text-decoration: none;
  font-size: 13px;
  transition: border-color 0.24s ease, color 0.24s ease, background 0.24s ease;
}

.page-products .cat-rail .spk-chip[aria-pressed="true"] {
  border-color: var(--cyan-500);
  color: var(--cyan-300);
  background: rgba(53, 224, 208, 0.10);
}

.page-products .cat-rail .spk-chip:hover,
.page-products .cat-rail .spk-chip:focus-visible {
  border-color: var(--line-strong);
  color: var(--cyan-300);
}

.page-products .cat-rail__hint {
  margin: 12px 0 0;
  font-size: 12px;
  line-height: 1.6;
  color: var(--mist);
}

.page-products .cat-groups {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
}

.page-products .cat-group {
  scroll-margin-top: var(--cat-anchor);
}

.page-products .cat-group__head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding-bottom: 10px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--line-soft);
}

.page-products .cat-group__no {
  color: var(--orange-300);
  font-size: 13px;
  letter-spacing: 0.1em;
}

.page-products .cat-group__title {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--fog);
}

.page-products .cat-topics {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-products .topic {
  display: flex;
  flex-direction: column;
  padding: 16px 16px 14px;
  border: 1px solid var(--line-soft);
  border-left: 2px solid rgba(53, 224, 208, 0.35);
  border-radius: var(--r-md);
  background: rgba(16, 44, 70, 0.55);
  transition: border-color 0.26s ease, background 0.26s ease, transform 0.26s ease;
}

.page-products .topic:hover {
  border-left-color: var(--cyan-500);
  background: rgba(16, 44, 70, 0.86);
  transform: translateY(-2px);
}

.page-products .topic__no {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan-300);
  user-select: all;
}

.page-products .topic__title {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--fog);
}

.page-products .topic__desc {
  margin: 0 0 14px;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--mist);
}

.page-products .topic__link {
  margin-top: auto;
  align-self: flex-start;
  font-size: 13px;
  color: var(--orange-300);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 162, 107, 0.45);
  padding-bottom: 2px;
}

.page-products .topic__link:hover,
.page-products .topic__link:focus-visible {
  color: var(--cyan-300);
  border-bottom-color: var(--cyan-300);
}

/* ---------- 一级栏目展签 ---------- */
.page-products .cat-columns {
  background: linear-gradient(180deg, rgba(244, 233, 216, 0) 0%, rgba(244, 233, 216, 0.05) 42%, rgba(244, 233, 216, 0) 100%);
}

.page-products .cat-columns__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .col-plate {
  display: grid;
  gap: 6px;
  padding: 20px 20px 18px;
  border-radius: var(--r-lg);
  background: var(--paper);
  color: #0B2239;
  box-shadow: 0 18px 34px -24px rgba(5, 11, 16, 0.9);
  transition: transform 0.26s ease;
}

.page-products .col-plate:hover {
  transform: translateY(-3px);
}

.page-products .col-plate__no {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: rgba(11, 34, 57, 0.48);
}

.page-products .col-plate__name {
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: #0B2239;
  text-decoration: none;
  width: fit-content;
  border-bottom: 2px solid rgba(11, 34, 57, 0.18);
  padding-bottom: 2px;
}

.page-products .col-plate__name:hover,
.page-products .col-plate__name:focus-visible {
  border-bottom-color: #FF7A3D;
  color: #07161f;
}

.page-products .col-plate__desc {
  margin: 4px 0 0;
  font-size: 13px;
  line-height: 1.68;
  color: rgba(11, 34, 57, 0.82);
}

.page-products .col-plate__when {
  margin: 6px 0 0;
  padding-top: 8px;
  border-top: 1px dashed rgba(11, 34, 57, 0.18);
  font-size: 12.5px;
  line-height: 1.6;
  color: rgba(11, 34, 57, 0.62);
}

/* ---------- 编号规则 ---------- */
.page-products .cat-code {
  display: grid;
  gap: var(--cat-gap);
  align-items: center;
}

.page-products .cat-code__text p {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-products .cat-code__text .cat-head__title {
  margin-top: 0;
}

.page-products .cat-code__demo {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.page-products .code-cell {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 16px;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-md);
  background: rgba(53, 224, 208, 0.06);
}

.page-products .code-cell--full {
  border-color: rgba(255, 122, 61, 0.5);
  background: rgba(255, 122, 61, 0.08);
}

.page-products .code-cell__k {
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1.1;
  color: var(--cyan-300);
  user-select: all;
}

.page-products .code-cell--full .code-cell__k {
  color: var(--orange-300);
}

.page-products .code-cell__v {
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

/* ---------- 小屏路径 ---------- */
.page-products .cat-small {
  background: radial-gradient(90% 70% at 12% 30%, rgba(53, 224, 208, 0.10) 0%, rgba(53, 224, 208, 0) 62%);
}

.page-products .cat-small__layout {
  display: grid;
  gap: var(--cat-gap);
  align-items: start;
}

.page-products .cat-small__text p {
  margin: 0 0 16px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-products .cat-small__text .cat-head__title {
  margin-top: 0;
}

.page-products .cat-steps {
  display: grid;
  gap: 12px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .cat-step {
  display: flex;
  gap: 14px;
  padding: 15px 16px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: rgba(16, 44, 70, 0.5);
}

.page-products .cat-step__no {
  flex: none;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan-300);
  padding-top: 3px;
}

.page-products .cat-step__title {
  margin: 0 0 6px;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--fog);
}

.page-products .cat-step p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--mist);
}

/* ---------- 底部收口 ---------- */
.page-products .cat-close {
  padding-bottom: clamp(48px, 8vw, 88px);
}

.page-products .cat-close__panel {
  display: grid;
  gap: var(--cat-gap);
  padding: clamp(20px, 4vw, 36px);
  border: 1px solid rgba(255, 122, 61, 0.28);
  border-radius: calc(var(--r-lg) + 4px);
  background:
    radial-gradient(100% 120% at 100% 0%, rgba(255, 122, 61, 0.18) 0%, rgba(255, 122, 61, 0) 58%),
    linear-gradient(170deg, rgba(16, 44, 70, 0.9) 0%, rgba(11, 34, 57, 0.95) 100%);
}

.page-products .cat-close__body p {
  margin: 0 0 14px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-products .cat-close__body .cat-head__title {
  margin-top: 0;
}

.page-products .cat-close__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 4px 0 22px;
}

.page-products .cat-close__contact {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 16px 0 0;
  list-style: none;
  border-top: 1px solid var(--line-soft);
  font-size: 13.5px;
  line-height: 1.6;
  color: rgba(234, 247, 245, 0.88);
}

.page-products .cat-close__contact li {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-products .cat-close__contact .spk-mono {
  color: var(--cyan-300);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  min-width: 34px;
}

.page-products .cat-close__panel .cat-figure {
  margin-bottom: 0;
  border-color: rgba(255, 122, 61, 0.22);
}

/* ---------- 断点 ---------- */
@media (min-width: 560px) {
  .page-products .cat-hero__stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 700px) {
  .page-products .cat-clusters {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-products .cat-topics > .topic:nth-child(2) {
    margin-top: 22px;
  }
}

@media (min-width: 880px) {
  .page-products .cat-split {
    grid-template-columns: 1.05fr 0.95fr;
  }

  .page-products .cat-code {
    grid-template-columns: 1.1fr 0.9fr;
  }

  .page-products .cat-small__layout {
    grid-template-columns: 0.72fr 1.28fr;
    align-items: start;
  }

  .page-products .cat-close__panel {
    grid-template-columns: 1.25fr 0.75fr;
    align-items: center;
  }

  .page-products .cat-hero__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.8fr);
    align-items: end;
  }
}

@media (min-width: 960px) {
  .page-products .cat-layout {
    grid-template-columns: var(--cat-rail) minmax(0, 1fr);
    align-items: start;
  }

  .page-products .cat-rail {
    position: sticky;
    top: 96px;
  }

  .page-products .cat-rail__list {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-products .cat-rail .spk-chip {
    width: 100%;
    text-align: left;
  }

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

@media (min-width: 1000px) {
  .page-products .cat-clusters {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .cat-clusters > .cluster:nth-child(even) {
    transform: translateY(16px);
  }

  .page-products .cat-clusters > .cluster:nth-child(even):hover {
    transform: translateY(12px);
  }

  .page-products .cat-columns__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-products .cat-columns__list > .col-plate:nth-child(3n+2) {
    transform: translateY(22px);
  }

  .page-products .cat-columns__list > .col-plate:nth-child(3n+2):hover {
    transform: translateY(18px);
  }

  .page-products .cat-topics {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-products .cat-topics > .topic:nth-child(2) {
    margin-top: 0;
  }

  .page-products .cat-topics > .topic:nth-child(2),
  .page-products .cat-topics > .topic:nth-child(5),
  .page-products .cat-topics > .topic:nth-child(8),
  .page-products .cat-topics > .topic:nth-child(11) {
    margin-top: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .cat-hero__glow {
    animation: none;
  }

  .page-products .cluster,
  .page-products .cluster:hover,
  .page-products .topic,
  .page-products .topic:hover,
  .page-products .col-plate,
  .page-products .col-plate:hover,
  .page-products .cat-clusters > .cluster:nth-child(even),
  .page-products .cat-columns__list > .col-plate:nth-child(3n+2),
  .page-products .cat-topics > .topic:nth-child(2),
  .page-products .cat-topics > .topic:nth-child(5),
  .page-products .cat-topics > .topic:nth-child(8),
  .page-products .cat-topics > .topic:nth-child(11) {
    transform: none;
  }
}