.page-products {
  --pp-card-bg: linear-gradient(160deg, rgba(13, 37, 69, 0.94), rgba(7, 20, 40, 0.97));
  --pp-glow: 0 0 0 1px rgba(45, 226, 230, 0.5), 0 0 26px -8px rgba(45, 226, 230, 0.5);
  --pp-dark: rgba(8, 26, 48, 0.72);
  background:
    radial-gradient(1100px 480px at 84% -8%, rgba(45, 226, 230, 0.09), transparent 62%),
    radial-gradient(760px 420px at 6% 18%, rgba(245, 184, 75, 0.06), transparent 66%),
    var(--ink-900);
  color: var(--body-ink);
  font-family: var(--font-sans);
  padding-bottom: clamp(48px, 8vw, 96px);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-products .pp-hero {
  display: grid;
  gap: 26px;
  padding-block: clamp(22px, 4vw, 42px) clamp(28px, 4.5vw, 52px);
  border-bottom: 1px solid var(--line-soft);
}

.page-products .pp-hero h1 {
  margin: 10px 0 0;
  font-size: clamp(36px, 7vw, 56px);
  line-height: 1.06;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--mist);
}

.page-products .pp-hero__lede {
  margin: 16px 0 0;
  max-width: 56ch;
  font-size: clamp(15.5px, 1.6vw, 18px);
  line-height: 1.8;
  color: var(--body-ink);
}

.page-products .pp-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-products .pp-hero__rule {
  grid-column: 1 / -1;
  height: 2px;
  margin-top: 6px;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--amber) 46%, transparent 100%);
  opacity: 0.62;
}

.page-products .pp-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--line-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-products .pp-stats__item {
  padding: 16px 16px 18px;
  background: var(--ink-850);
}

.page-products .pp-stats__label {
  font-size: 12.5px;
  line-height: 1.4;
  color: var(--slate);
  letter-spacing: 0.04em;
}

.page-products .pp-stats__num {
  display: block;
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(24px, 3vw, 30px);
  font-weight: 700;
  line-height: 1.05;
  color: var(--amber);
}

.page-products .pp-stats__num em {
  margin-left: 2px;
  font-style: normal;
  font-size: 0.56em;
  color: var(--gold-light);
}

.page-products .pp-stats__num--text {
  font-size: clamp(15px, 1.8vw, 18px);
  letter-spacing: 0.06em;
  color: var(--mint);
}

/* ---------- 栏目筛选带 ---------- */
.page-products .pp-filter {
  padding-block: clamp(18px, 3vw, 26px);
  border-bottom: 1px solid var(--line-soft);
}

.page-products .pp-filter__bar {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-products .pp-filter__bar .chip {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  padding: 9px 15px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--ink-850);
  color: var(--body-ink);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  text-decoration: none;
  white-space: nowrap;
  transition: color 180ms var(--ease), border-color 180ms var(--ease), background 180ms var(--ease);
}

.page-products .pp-filter__bar .chip:hover,
.page-products .pp-filter__bar .chip:focus-visible {
  color: var(--mist);
  border-color: rgba(45, 226, 230, 0.62);
  background: var(--ink-800);
  outline: none;
}

.page-products .pp-filter__bar .chip.is-active {
  color: var(--ink-900);
  background: var(--cyan);
  border-color: var(--cyan);
  font-weight: 700;
}

.page-products .pp-filter__count {
  margin: 10px 0 0;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--slate);
}

.page-products .pp-filter__count strong {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--amber);
}

/* ---------- 抽象图形容器 ---------- */
.page-products .pp-media {
  position: relative;
  margin: clamp(26px, 4vw, 44px) 0 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--ink-850);
  background-image:
    linear-gradient(rgba(45, 226, 230, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(45, 226, 230, 0.07) 1px, transparent 1px);
  background-size: 42px 42px, 42px 42px;
}

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

.page-products .pp-media__cap {
  display: block;
  padding: 10px 14px;
  border-top: 1px solid var(--line-soft);
  background: rgba(7, 20, 40, 0.82);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: var(--slate);
}

/* ---------- 区块标题 ---------- */
.page-products .pp-section-head {
  max-width: 66ch;
  margin-top: clamp(32px, 5vw, 56px);
}

.page-products .pp-h2 {
  margin: 10px 0 0;
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1.18;
  font-weight: 700;
  color: var(--mist);
}

.page-products .pp-section-head > p:last-child {
  margin: 14px 0 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--body-ink);
}

/* ---------- 三段筛选说明 ---------- */
.page-products .pp-overview {
  padding-block: clamp(32px, 5vw, 60px);
}

.page-products .pp-overview__grid {
  display: grid;
  gap: 1px;
  margin-top: 26px;
  background: var(--line-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-products .pp-overview__cell {
  padding: clamp(18px, 3vw, 26px);
  background: var(--ink-850);
}

.page-products .pp-overview__k {
  margin: 0;
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.page-products .pp-overview__cell h3 {
  margin: 8px 0 0;
  font-size: 19px;
  font-weight: 700;
  color: var(--mist);
}

.page-products .pp-overview__cell p:last-child {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--body-ink);
}

/* ---------- 六类栏目 ---------- */
.page-products .pp-cats {
  padding-block: clamp(32px, 5vw, 60px);
  border-top: 1px solid var(--line-soft);
}

.page-products .pp-cat-grid {
  display: grid;
  gap: 14px;
  margin-top: clamp(24px, 4vw, 34px);
}

.page-products .pp-cat {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 20px 20px 22px;
  background: var(--pp-card-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  transition: border-color 200ms var(--ease), box-shadow 200ms var(--ease);
}

.page-products .pp-cat::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 2px;
  background: linear-gradient(180deg, var(--cyan), transparent 72%);
  opacity: 0;
  transition: opacity 200ms var(--ease);
}

.page-products .pp-cat:hover,
.page-products .pp-cat:focus-within {
  border-color: rgba(45, 226, 230, 0.42);
}

.page-products .pp-cat:hover::before,
.page-products .pp-cat:target::before {
  opacity: 1;
}

.page-products .pp-cat:target {
  border-color: var(--cyan);
  box-shadow: var(--pp-glow);
}

.page-products .pp-cat__head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-soft);
}

.page-products .pp-cat__no {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-products .pp-cat__title {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--mist);
}

.page-products .pp-cat__list {
  margin: 14px 0 0;
  display: grid;
  gap: 13px;
}

.page-products .pp-cat__list dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-products .pp-cat__list dd {
  margin: 5px 0 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--body-ink);
}

/* ---------- 场景组合 ---------- */
.page-products .pp-scenes {
  padding-block: clamp(32px, 5vw, 60px);
  border-top: 1px solid var(--line-soft);
}

.page-products .pp-scene-grid {
  display: grid;
  gap: 12px;
  margin-top: clamp(22px, 3.5vw, 30px);
}

.page-products .pp-scene {
  padding: 20px;
  border: 1px solid var(--line);
  border-left: 3px solid rgba(245, 184, 75, 0.7);
  border-radius: var(--radius);
  background: var(--pp-dark);
}

.page-products .pp-scene:nth-child(2) {
  border-left-color: rgba(45, 226, 230, 0.7);
}

.page-products .pp-scene:nth-child(3) {
  border-left-color: rgba(255, 107, 107, 0.66);
}

.page-products .pp-scene:nth-child(4) {
  border-left-color: rgba(154, 245, 232, 0.66);
}

.page-products .pp-scene h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  color: var(--mist);
}

.page-products .pp-scene p {
  margin: 9px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--body-ink);
}

.page-products .pp-scene__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .pp-scene__tags li {
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(7, 20, 40, 0.75);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.03em;
  color: var(--mint);
}

/* ---------- 服务路径 ---------- */
.page-products .pp-path {
  padding-block: clamp(32px, 5vw, 60px);
  border-top: 1px solid var(--line-soft);
}

.page-products .pp-steps {
  margin: clamp(24px, 3.5vw, 32px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-products .pp-step {
  position: relative;
  padding: 18px 18px 20px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  background: var(--pp-dark);
}

.page-products .pp-step__no {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-products .pp-step h3 {
  margin: 7px 0 0;
  font-size: 17.5px;
  font-weight: 700;
  color: var(--mist);
}

.page-products .pp-step p {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--body-ink);
}

/* ---------- 条目把关 ---------- */
.page-products .pp-check {
  padding-block: clamp(32px, 5vw, 60px);
  border-top: 1px solid var(--line-soft);
}

.page-products .pp-check__grid {
  display: grid;
  gap: 12px;
  margin-top: clamp(22px, 3.5vw, 28px);
}

.page-products .pp-check__item {
  padding: 20px;
  border-top: 2px solid var(--cyan);
  background: linear-gradient(180deg, rgba(11, 31, 58, 0.85), rgba(7, 20, 40, 0.9));
}

.page-products .pp-check__item:nth-child(2) {
  border-top-color: var(--amber);
}

.page-products .pp-check__item:nth-child(3) {
  border-top-color: var(--coral);
}

.page-products .pp-check__item .pp-overview__k {
  margin: 0;
}

.page-products .pp-check__item h3 {
  margin: 8px 0 0;
  font-size: 18px;
  font-weight: 700;
  color: var(--mist);
}

.page-products .pp-check__item p:last-child {
  margin: 9px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--body-ink);
}

/* ---------- 开始使用 ---------- */
.page-products .pp-start {
  padding-block: clamp(32px, 5vw, 64px);
  border-top: 1px solid var(--line-soft);
}

.page-products .pp-start__grid {
  display: grid;
  gap: 22px;
  margin-top: clamp(22px, 3.5vw, 30px);
}

.page-products .pp-start__grid .pp-media {
  margin-top: 0;
}

.page-products .pp-steps--stack {
  margin-top: 0;
  gap: 10px;
}

.page-products .pp-steps--stack .pp-step {
  padding: 15px 16px 17px;
}

.page-products .pp-links {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
}

.page-products .pp-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 13px 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(11, 31, 58, 0.55);
  color: var(--mist);
  font-size: 14.5px;
  text-decoration: none;
  transition: border-color 180ms var(--ease), background 180ms var(--ease), color 180ms var(--ease);
}

.page-products .pp-links a:hover,
.page-products .pp-links a:focus-visible {
  border-color: rgba(45, 226, 230, 0.58);
  background: rgba(13, 37, 69, 0.92);
  color: var(--mist);
  outline: none;
}

.page-products .pp-links a span:last-child {
  font-family: var(--font-mono);
  color: var(--cyan);
}

.page-products .pp-note {
  margin: 16px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--line);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--slate);
}

.page-products .pp-note a {
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px dotted rgba(154, 245, 232, 0.55);
}

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

/* ---------- 返回顶部 ---------- */
.page-products .pp-top {
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 12.5px;
}

.page-products .pp-top a {
  color: var(--slate);
  text-decoration: none;
  border-bottom: 1px dotted var(--line);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 680px) {
  .page-products .pp-scene-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .pp-overview__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .pp-check__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-products .pp-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    column-gap: clamp(32px, 5vw, 72px);
    align-items: end;
  }

  .page-products .pp-start__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    column-gap: clamp(28px, 4vw, 52px);
    align-items: start;
  }

  .page-products .pp-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
  }

  .page-products .pp-step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 32px;
    right: -17px;
    width: 18px;
    height: 1px;
    background: linear-gradient(90deg, var(--cyan), transparent);
  }

  .page-products .pp-steps--stack {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-products .pp-steps--stack .pp-step::after {
    display: none;
  }
}

@media (min-width: 1100px) {
  .page-products .pp-cat-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pp-cat,
  .page-products .pp-cat::before,
  .page-products .pp-filter__bar .chip,
  .page-products .pp-links a {
    transition: none;
  }
}
</main>