.page-products {
  --pp-gap: clamp(1.25rem, 3vw, 2.5rem);
  --pp-rail: 232px;
  background:
    radial-gradient(900px 520px at 92% -6%, rgba(0, 229, 212, 0.09), transparent 62%),
    var(--bg-base);
  color: var(--paper);
  overflow-x: hidden;
  padding-bottom: clamp(2.5rem, 6vw, 4.5rem);
}

/* ---------- 首屏 ---------- */
.page-products .cat-hero {
  position: relative;
  padding: clamp(1.5rem, 4vw, 2.75rem) 0 clamp(1.75rem, 5vw, 3rem);
  border-bottom: var(--border-w) solid var(--line);
  background-image:
    linear-gradient(rgba(30, 58, 95, 0.28) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 58, 95, 0.28) 1px, transparent 1px);
  background-size: 52px 52px;
}

.page-products .cat-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 20, 36, 0.55), rgba(10, 20, 36, 0.95) 78%);
  pointer-events: none;
}

.page-products .cat-hero > .container {
  position: relative;
  z-index: 1;
}

.page-products .cat-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4vw, 2.75rem);
  margin-top: 1.1rem;
}

@media (min-width: 900px) {
  .page-products .cat-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: start;
  }
}

.page-products .cat-hero__title {
  margin: 0.5rem 0 0.9rem;
  font-size: clamp(1.95rem, 5.2vw, 3.4rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.02em;
  max-width: 15ch;
}

.page-products .cat-hero__intro {
  margin: 0;
  max-width: 46ch;
  color: var(--muted);
  font-size: clamp(0.98rem, 2.2vw, 1.06rem);
  line-height: 1.8;
}

.page-products .cat-hero__facts {
  margin-top: clamp(1.5rem, 4vw, 2.25rem);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: var(--border-w) solid var(--line);
  border-left: var(--border-w) solid var(--line);
}

@media (min-width: 720px) {
  .page-products .cat-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-products .fact {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 0.9rem 1rem 1rem;
  border-right: var(--border-w) solid var(--line);
  border-bottom: var(--border-w) solid var(--line);
  background: rgba(15, 30, 51, 0.6);
}

.page-products .fact__num {
  font-size: clamp(1.5rem, 4vw, 2.05rem);
  font-weight: 900;
  color: var(--cyan);
  line-height: 1;
}

.page-products .fact__label {
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.5;
}

/* ---------- 路径卡片 ---------- */
.page-products .path-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
}

@media (min-width: 620px) {
  .page-products .path-cards {
    grid-template-columns: 1.2fr 1fr;
  }
  .page-products .path-card--meta {
    grid-column: 1 / -1;
  }
}

.page-products .path-card {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 1.05rem 1.1rem 1.15rem;
  border: var(--border-w) solid var(--line-strong);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
  color: var(--paper);
  text-decoration: none;
  transition: border-color 200ms var(--ease), box-shadow 200ms var(--ease);
}

.page-products .path-card:hover,
.page-products .path-card:focus-visible {
  border-color: var(--cyan);
  box-shadow: var(--shadow-hard), var(--glow-cyan);
  outline: none;
}

.page-products .path-card__idx {
  font-size: 0.85rem;
  color: var(--cyan);
  letter-spacing: 0.1em;
}

.page-products .path-card__name {
  font-size: clamp(1.02rem, 2.4vw, 1.18rem);
  font-weight: 800;
  line-height: 1.3;
}

.page-products .path-card__desc {
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.7;
}

.page-products .path-card__go {
  margin-top: auto;
  padding-top: 0.5rem;
  color: var(--cyan);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
}

.page-products .path-card--a {
  background: linear-gradient(160deg, rgba(0, 229, 212, 0.14), rgba(22, 41, 74, 0.95) 62%), var(--panel);
}

.page-products .path-card--meta {
  border-style: dashed;
  background: var(--bg-deep);
}

/* ---------- 主体栅格 ---------- */
.page-products .cat-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pp-gap);
  padding-top: clamp(1.75rem, 4.5vw, 3rem);
}

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

.page-products .cat-rail__inner {
  display: flex;
  gap: 0.4rem;
  padding-top: 0.6rem;
  border-top: var(--border-w) solid var(--line);
  overflow-x: auto;
  scrollbar-width: none;
}

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

@media (min-width: 960px) {
  .page-products .cat-rail__inner {
    position: sticky;
    top: 96px;
    flex-direction: column;
    gap: 0.1rem;
    padding: 0 0 0 0.9rem;
    border-top: none;
    border-left: var(--border-w) solid var(--line);
    overflow: visible;
  }
}

.page-products .cat-rail__title {
  display: none;
}

@media (min-width: 960px) {
  .page-products .cat-rail__title {
    display: block;
    margin: 0 0 0.6rem;
    font-size: 0.72rem;
    letter-spacing: 0.22em;
    color: var(--muted);
    text-transform: uppercase;
  }
}

.page-products .cat-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: 0.4rem;
  flex: 0 0 auto;
  padding: 0.45rem 0.7rem;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.86rem;
  white-space: nowrap;
  border-left: 2px solid transparent;
  transition: color 180ms var(--ease), border-color 180ms var(--ease), background-color 180ms var(--ease);
}

@media (min-width: 960px) {
  .page-products .cat-index__link {
    margin-left: -0.9rem;
    width: calc(100% + 0.9rem);
    padding: 0.4rem 0.5rem 0.4rem 0.75rem;
    white-space: normal;
  }
}

.page-products .cat-index__link:hover,
.page-products .cat-index__link:focus-visible {
  color: var(--paper);
  border-left-color: var(--line-strong);
  outline: none;
}

.page-products .cat-index__num {
  font-size: 0.74rem;
  color: var(--line-strong);
}

/* ---------- 章节 ---------- */
.page-products .cat-main {
  min-width: 0;
}

.page-products .cat-section {
  margin-top: clamp(2rem, 5vw, 3.5rem);
  padding-top: clamp(1.75rem, 4vw, 2.75rem);
  border-top: var(--border-w) solid var(--line);
}

.page-products .cat-main > .cat-section:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.page-products .cat-section__head {
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
}

.page-products .cat-section__head .eyebrow {
  color: var(--cyan);
}

.page-products .cat-section__head h2 {
  margin: 0.4rem 0 0.7rem;
  font-size: clamp(1.4rem, 3.6vw, 2.1rem);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.01em;
  max-width: 24ch;
}

.page-products .cat-section__lede {
  margin: 0;
  max-width: 54ch;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.8;
}

/* ---------- 双栏 ---------- */
.page-products .split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.25rem, 3.5vw, 2.5rem);
  align-items: start;
}

@media (min-width: 820px) {
  .page-products .split {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  }
  .page-products .split--reverse {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr);
  }
}

.page-products .pp-p {
  margin: 0 0 1.1rem;
  max-width: 58ch;
  font-size: 0.96rem;
  line-height: 1.85;
  color: var(--paper);
}

.page-products .pp-p a {
  color: var(--cyan);
}

/* ---------- 步骤 ---------- */
.page-products .pp-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.page-products .pp-step {
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr);
  gap: 0.85rem;
  padding: 0.85rem 0.95rem;
  border: var(--border-w) solid var(--line);
  background: rgba(15, 30, 51, 0.66);
  transition: border-color 180ms var(--ease);
}

.page-products .pp-step:hover {
  border-color: var(--line-strong);
}

.page-products .pp-step__num {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--cyan);
  line-height: 1.4;
}

.page-products .pp-step__title {
  margin: 0 0 0.25rem;
  font-size: 0.97rem;
  font-weight: 800;
  letter-spacing: 0.01em;
}

.page-products .pp-step__body p {
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.75;
}

/* ---------- 列表 ---------- */
.page-products .pp-bullets {
  list-style: none;
  margin: 0 0 1.1rem;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.page-products .pp-bullets li {
  position: relative;
  padding-left: 1.1rem;
  color: var(--muted);
  font-size: 0.89rem;
  line-height: 1.8;
}

.page-products .pp-bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 0.5rem;
  height: 2px;
  background: var(--cyan);
}

.page-products .pp-bullets strong {
  color: var(--paper);
  font-weight: 700;
}

/* ---------- 图片 ---------- */
.page-products .pp-figure {
  margin: 0;
  border: var(--border-w) solid var(--line-strong);
  background:
    linear-gradient(rgba(30, 58, 95, 0.4) 1px, transparent 1px) 0 0 / 32px 32px,
    linear-gradient(90deg, rgba(30, 58, 95, 0.4) 1px, transparent 1px) 0 0 / 32px 32px,
    var(--bg-deep);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

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

.page-products .pp-figure__cap {
  padding: 0.7rem 0.9rem 0.8rem;
  border-top: 1px dashed var(--line-strong);
  color: var(--muted);
  font-size: 0.79rem;
  line-height: 1.65;
}

@media (min-width: 820px) {
  .page-products .pp-figure--tall {
    max-width: 340px;
  }
  .page-products .pp-figure--square {
    max-width: 380px;
  }
}

.page-products .pp-figure--wide,
.page-products .pp-figure--banner {
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
}

/* ---------- 对比表 ---------- */
.page-products .pp-table-wrap {
  overflow-x: auto;
  border: var(--border-w) solid var(--line-strong);
  background: var(--panel);
  margin-bottom: 1.1rem;
}

.page-products .pp-compare {
  width: 100%;
  min-width: 480px;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.page-products .pp-compare caption {
  padding: 0.7rem 0.9rem;
  text-align: left;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--cyan);
  border-bottom: var(--border-w) solid var(--line);
}

.page-products .pp-compare th,
.page-products .pp-compare td {
  padding: 0.7rem 0.85rem;
  text-align: left;
  vertical-align: top;
  line-height: 1.6;
  border-bottom: 1px solid var(--line);
}

.page-products .pp-compare thead th {
  color: var(--paper);
  font-weight: 800;
  background: rgba(10, 20, 36, 0.7);
}

.page-products .pp-compare tbody th {
  color: var(--muted);
  font-weight: 600;
  white-space: nowrap;
}

.page-products .pp-compare tbody td {
  color: var(--paper);
}

.page-products .pp-compare tbody tr:last-child th,
.page-products .pp-compare tbody tr:last-child td {
  border-bottom: none;
}

/* ---------- 旁注 ---------- */
.page-products .pp-note {
  padding: 0.9rem 1rem 1rem;
  border-left: 4px solid var(--line-strong);
  background: rgba(4, 16, 28, 0.7);
}

.page-products .pp-note--accent {
  border-left-color: var(--cyan);
  background: rgba(0, 229, 212, 0.07);
}

.page-products .pp-note__title {
  margin: 0 0 0.35rem;
  font-size: 0.84rem;
  font-weight: 800;
  color: var(--paper);
}

.page-products .pp-note p:not(.pp-note__title) {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.75;
}

/* ---------- 工具区 ---------- */
.page-products .pp-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: clamp(1.1rem, 3vw, 1.75rem);
  padding: 0.7rem 0.8rem;
  border: var(--border-w) solid var(--line);
  background: rgba(15, 30, 51, 0.7);
}

.page-products .pp-filter__label {
  color: var(--muted);
  font-size: 0.8rem;
  margin-right: 0.15rem;
}

.page-products .tool-groups {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 760px) {
  .page-products .tool-groups {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-products .tool-group {
  border: var(--border-w) solid var(--line);
  background: rgba(10, 20, 36, 0.62);
  padding: 0.9rem 0.95rem 0.6rem;
}

.page-products .tool-group__name {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 0.6rem;
  padding-bottom: 0.55rem;
  border-bottom: 1px solid var(--line);
  font-size: 0.92rem;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.page-products .tool-group__dot {
  width: 0.55rem;
  height: 0.55rem;
  flex: 0 0 auto;
}

.page-products .tool-group__dot--filter {
  background: var(--cyan);
}

.page-products .tool-group__dot--tz {
  background: var(--orange);
}

.page-products .tool-group__dot--cal {
  background: var(--sage);
}

.page-products .tool-group__dot--result {
  background: var(--line-strong);
}

.page-products .tool-group__dot--export {
  background: var(--paper);
}

.page-products .tool-group__count {
  margin-left: auto;
  font-size: 0.8rem;
  color: var(--muted);
}

.page-products .tool-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .tool-item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.55rem 0.5rem 0.6rem;
  border-bottom: 1px solid rgba(30, 58, 95, 0.7);
  transition: background-color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-products .tool-item:last-child {
  border-bottom: none;
}

.page-products .tool-item:hover {
  background: rgba(22, 41, 74, 0.85);
}

.page-products .tool-item__name {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--paper);
}

.page-products .tool-item__desc {
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.65;
}

.page-products .pp-version {
  margin-top: clamp(1.25rem, 3vw, 2rem);
  padding: 1rem 1.1rem 1.15rem;
  border: var(--border-w) solid var(--line-strong);
  border-left: 6px solid var(--orange);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
}

.page-products .pp-version__tag {
  margin: 0 0 0.45rem;
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  color: var(--orange);
  font-weight: 800;
}

.page-products .pp-version__body {
  margin: 0 0 0.6rem;
  max-width: 62ch;
  color: var(--paper);
  font-size: 0.9rem;
  line-height: 1.8;
}

.page-products .pp-version__links {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.84rem;
}

.page-products .pp-version__links a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 212, 0.4);
  padding-bottom: 1px;
}

.page-products .pp-version__links a:hover,
.page-products .pp-version__links a:focus-visible {
  border-bottom-color: var(--cyan);
}

/* ---------- 场景 ---------- */
.page-products .scene-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.9rem;
}

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

.page-products .scene {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1.05rem 1.05rem 1.15rem;
  border: var(--border-w) solid var(--line);
  background: rgba(15, 30, 51, 0.62);
  transition: border-color 180ms var(--ease);
}

.page-products .scene:hover {
  border-color: var(--line-strong);
}

.page-products .scene__num {
  font-size: 2rem;
  font-weight: 900;
  line-height: 1;
  color: rgba(0, 229, 212, 0.32);
}

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

.page-products .scene__body {
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.78;
}

.page-products .scene__pick {
  margin: auto 0 0;
  padding-top: 0.6rem;
  border-top: 1px dashed var(--line-strong);
  color: var(--cyan);
  font-size: 0.79rem;
  letter-spacing: 0.02em;
}

/* ---------- 结尾 ---------- */
.page-products .cat-outro {
  margin-top: clamp(2rem, 5vw, 3.5rem);
  padding: clamp(1.25rem, 3.5vw, 2rem);
  border: var(--border-w) solid var(--line-strong);
  background:
    linear-gradient(135deg, rgba(0, 229, 212, 0.12), transparent 58%),
    var(--bg-deep);
  box-shadow: var(--shadow-hard);
}

.page-products .cat-outro__title {
  margin: 0 0 0.6rem;
  font-size: clamp(1.2rem, 3.2vw, 1.6rem);
  font-weight: 900;
  line-height: 1.2;
}

.page-products .cat-outro__body {
  margin: 0 0 1.1rem;
  max-width: 56ch;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.8;
}

.page-products .cat-outro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.page-products .cat-outro__actions .btn {
  text-decoration: none;
}

@media (prefers-reduced-motion: reduce) {
  .page-products * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}