.page-products {
  --pp-rail-w: 196px;
}

.page-products .pp-top {
  padding-top: clamp(16px, 2.4vw, 28px);
}

/* ── 首屏 ── */
.page-products .pp-hero {
  position: relative;
  padding: clamp(24px, 4vw, 52px) 0 clamp(34px, 5.5vw, 76px);
  overflow: hidden;
}

.page-products .pp-hero::before {
  content: "";
  position: absolute;
  top: -22%;
  right: -18%;
  width: min(78vw, 720px);
  height: min(78vw, 720px);
  background: radial-gradient(circle at 58% 42%, var(--glow), transparent 62%);
  pointer-events: none;
}

.page-products .pp-hero::after {
  content: "";
  position: absolute;
  top: 18%;
  right: -8%;
  width: 48%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan));
  transform: rotate(-7deg);
  transform-origin: right center;
  opacity: .65;
  pointer-events: none;
}

.page-products .pp-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 48px);
  align-items: end;
}

.page-products .pp-hero__title {
  margin: 14px 0 18px;
  max-width: 20ch;
  text-wrap: balance;
}

.page-products .pp-hero__lede {
  max-width: 60ch;
  line-height: 1.85;
  color: var(--mist);
}

.page-products .pp-hero__panel {
  position: relative;
  padding: clamp(18px, 2.4vw, 26px);
  background: linear-gradient(155deg, var(--ink-2), rgba(14, 20, 64, .35));
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 28px), calc(100% - 28px) 100%, 0 100%);
}

.page-products .pp-panel__label {
  display: block;
  font-size: var(--fs-12);
  letter-spacing: .18em;
  color: var(--cyan);
  margin-bottom: 16px;
}

.page-products .pp-figures {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 16px;
}

.page-products .pp-figures .stat__value {
  display: block;
  font-family: var(--mono);
  font-size: var(--fs-30);
  line-height: 1.1;
  color: var(--cyan);
}

.page-products .pp-figures .stat:nth-child(2) .stat__value,
.page-products .pp-figures .stat:nth-child(4) .stat__value {
  color: var(--orange);
}

.page-products .pp-figures .stat__label {
  display: block;
  margin-top: 6px;
  font-size: var(--fs-14);
  color: var(--mist);
  line-height: 1.6;
}

/* ── 快速筛选区 ── */
.page-products .pp-quick {
  padding: clamp(34px, 5vw, 76px) 0 clamp(28px, 4vw, 56px);
  position: relative;
}

.page-products .pp-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 22px 0 28px;
}

.page-products .pp-filter__count {
  margin-left: auto;
  font-size: var(--fs-14);
  color: var(--mist);
  letter-spacing: .1em;
}

.page-products .pp-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(14px, 2vw, 22px);
}

.page-products .pp-card {
  position: relative;
  padding: 26px clamp(18px, 2vw, 24px) 30px;
  background: linear-gradient(158deg, var(--ink-2) 0%, var(--ink-3) 100%);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 0 100%);
  transition: transform .22s ease, border-color .22s ease;
}

.page-products .pp-card:hover {
  transform: translateY(-4px);
  border-color: rgba(34, 227, 211, .5);
}

.page-products .pp-card[hidden] {
  display: none;
}

.page-products .pp-card__idx {
  display: block;
  font-size: var(--fs-14);
  letter-spacing: .14em;
  color: var(--cyan);
  margin-bottom: 12px;
}

.page-products .pp-card__tag {
  position: absolute;
  top: 16px;
  right: 34px;
  font-size: var(--fs-12);
  letter-spacing: .08em;
  color: var(--orange);
}

.page-products .pp-card__title {
  font-size: var(--fs-22);
  font-weight: 800;
  line-height: 1.35;
  color: var(--white);
  margin-bottom: 10px;
}

.page-products .pp-card__text {
  font-size: var(--fs-17);
  line-height: 1.78;
  color: var(--mist);
}

/* ── 双栏骨架 ── */
.page-products .pp-stack-section {
  padding: clamp(20px, 3vw, 40px) 0 clamp(48px, 7vw, 104px);
}

.page-products .pp-stack {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

.page-products .pp-rail__title {
  font-size: var(--fs-12);
  letter-spacing: .22em;
  color: var(--mist);
  margin-bottom: 12px;
}

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

.page-products .pp-rail__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  white-space: nowrap;
  padding: 9px 14px;
  font-size: var(--fs-14);
  color: var(--mist);
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  transition: color .18s ease, background .18s ease, border-color .18s ease;
}

.page-products .pp-rail__link .mono {
  font-size: var(--fs-12);
  color: var(--cyan);
}

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

.page-products .pp-rail__link[aria-current],
.page-products .pp-rail__link.is-active,
.page-products .pp-rail__link.is-current {
  color: var(--orange);
  background: var(--warm);
  border-color: rgba(255, 122, 47, .42);
}

.page-products .pp-rail__link[aria-current] .mono,
.page-products .pp-rail__link.is-active .mono,
.page-products .pp-rail__link.is-current .mono {
  color: var(--orange);
}

/* ── 章节 ── */
.page-products .pp-secs {
  display: flex;
  flex-direction: column;
}

.page-products .pp-sec {
  position: relative;
  padding: clamp(30px, 4vw, 46px) 0 clamp(38px, 5vw, 62px);
  border-top: 1px solid var(--line);
}

.page-products .pp-sec:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-products .pp-sec + .pp-sec::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 78px;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), transparent);
}

.page-products .pp-sec__num {
  display: inline-block;
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1;
  letter-spacing: .05em;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--cyan);
  margin-bottom: 12px;
}

.page-products .pp-sec__title {
  font-size: clamp(1.5rem, 3.4vw, 2.3rem);
  font-weight: 800;
  line-height: 1.24;
  color: var(--white);
  margin-bottom: 14px;
  max-width: 26ch;
}

.page-products .pp-sec__lede {
  font-size: var(--fs-22);
  line-height: 1.72;
  color: var(--mist);
  max-width: 60ch;
}

.page-products .pp-sec__body {
  margin-top: 24px;
}

.page-products .pp-sec__body p {
  max-width: 68ch;
  color: var(--mist);
  line-height: 1.85;
  margin-bottom: 1.2em;
}

.page-products .pp-sec__body p:last-child {
  margin-bottom: 0;
}

.page-products .pp-sec__body .mono {
  color: var(--orange);
  letter-spacing: .06em;
}

/* ── 要点列表 ── */
.page-products .pp-points {
  list-style: none;
  margin: 0 0 1.4em;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-products .pp-points li {
  position: relative;
  padding-left: 26px;
  max-width: 68ch;
  color: var(--mist);
  line-height: 1.85;
}

.page-products .pp-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 12px;
  height: 2px;
  background: var(--cyan);
}

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

/* ── 图片 ── */
.page-products .pp-media {
  margin: 26px 0 30px;
}

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

/* ── 折叠公告 ── */
.page-products .pp-fold {
  margin-top: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(23, 32, 92, .55);
  overflow: hidden;
}

.page-products .pp-fold__summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 16px 20px;
  cursor: pointer;
  color: var(--white);
  font-weight: 700;
  list-style: none;
}

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

.page-products .pp-fold__summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--mono);
  font-size: var(--fs-22);
  line-height: 1;
  color: var(--cyan);
}

.page-products .pp-fold[open] .pp-fold__summary::after {
  content: "−";
}

.page-products .pp-fold__summary .mono {
  color: var(--orange);
}

.page-products .pp-fold__body {
  padding: 0 20px 20px;
}

.page-products .pp-fold__body p {
  margin: 0;
  max-width: 68ch;
  color: var(--mist);
  line-height: 1.85;
}

/* ── 字号演示 ── */
.page-products .pp-scales {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 28px;
  align-items: start;
}

.page-products .pp-scale {
  padding: 18px 20px 20px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  background: rgba(23, 32, 92, .5);
}

.page-products .pp-scale__label {
  display: block;
  font-size: var(--fs-12);
  letter-spacing: .16em;
  color: var(--cyan);
  margin-bottom: 10px;
}

.page-products .pp-scale__text {
  margin: 0;
  color: var(--white);
  line-height: 1.85;
}

.page-products .pp-scale:nth-child(1) .pp-scale__text { font-size: 12px; }
.page-products .pp-scale:nth-child(2) .pp-scale__text { font-size: 16px; }
.page-products .pp-scale:nth-child(3) .pp-scale__text { font-size: 20px; }
.page-products .pp-scale:nth-child(4) .pp-scale__text { font-size: 24px; }

/* ── 对照表 ── */
.page-products .pp-table-wrap {
  margin-top: 26px;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}

.page-products .pp-table {
  width: 100%;
  min-width: 700px;
  border-collapse: collapse;
  font-size: var(--fs-17);
}

.page-products .pp-table__caption {
  caption-side: top;
  text-align: left;
  padding: 14px 18px 0;
  font-size: var(--fs-14);
  color: var(--mist);
}

.page-products .pp-table thead th {
  background: linear-gradient(90deg, rgba(34, 227, 211, .18), rgba(34, 227, 211, .04));
  color: var(--cyan);
  font-family: var(--mono);
  font-size: var(--fs-14);
  font-weight: 500;
  letter-spacing: .1em;
  text-align: left;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

.page-products .pp-table td {
  padding: 15px 18px;
  color: var(--mist);
  line-height: 1.72;
  border-bottom: 1px solid var(--line-soft);
}

.page-products .pp-table tbody tr:nth-child(even) {
  background: rgba(23, 32, 92, .55);
}

.page-products .pp-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-products .pp-table td:first-child {
  color: var(--white);
  font-weight: 700;
  white-space: nowrap;
}

/* ── 收尾 ── */
.page-products .pp-end {
  padding: clamp(36px, 5vw, 72px) 0 clamp(56px, 8vw, 108px);
}

.page-products .pp-end__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 34px);
  padding: clamp(26px, 3.6vw, 46px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(140deg, rgba(34, 227, 211, .13), transparent 55%),
    linear-gradient(320deg, rgba(255, 122, 47, .13), transparent 52%),
    var(--ink-2);
}

.page-products .pp-end__copy .section-title {
  margin-bottom: 14px;
}

.page-products .pp-end__copy .muted {
  max-width: 62ch;
  line-height: 1.85;
  margin-bottom: 10px;
}

.page-products .pp-end__copy a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-products .pp-end__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-content: start;
}

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

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

@media (min-width: 900px) {
  .page-products .pp-hero__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, .9fr);
  }

  .page-products .pp-end__inner {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, .85fr);
    align-items: center;
  }
}

@media (min-width: 1000px) {
  .page-products .pp-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .pp-stack {
    grid-template-columns: var(--pp-rail-w) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 60px);
  }

  .page-products .pp-rail {
    position: sticky;
    top: 108px;
  }

  .page-products .pp-rail__list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pp-card {
    transition: none;
  }

  .page-products .pp-card:hover {
    transform: none;
  }
}