.page-products {
  --pd-cut: 20px;
  --pd-line-w: clamp(266px, 80vw, 360px);
  --pd-radius-0: 0;
  padding-bottom: clamp(40px, 6vw, 96px);
}

/* ---------- 首屏 ---------- */
.page-products .pd-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background:
    radial-gradient(120% 92% at 80% 0%, rgba(111, 179, 156, .14), transparent 58%),
    linear-gradient(162deg, var(--ink-800) 0%, var(--ink-900) 64%);
  border-bottom: 2px solid var(--line-600);
  padding: clamp(38px, 6vw, 76px) 0 clamp(34px, 5vw, 62px);
}

.page-products .pd-hero__media {
  position: absolute;
  inset: 0 0 0 40%;
  z-index: 0;
  clip-path: polygon(24% 0, 100% 0, 100% 100%, 0 100%);
}

.page-products .pd-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.68) contrast(1.06);
  opacity: .58;
}

.page-products .pd-hero__veil {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(94deg, var(--ink-900) 14%, rgba(10, 20, 48, .7) 48%, rgba(10, 20, 48, .3) 100%);
}

.page-products .pd-hero__inner {
  position: relative;
  z-index: 2;
}

.page-products .pd-hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.3rem, 8.2vw, 4.9rem);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--warm-100);
  margin: 12px 0 18px;
  text-wrap: balance;
}

.page-products .pd-hero__lead {
  max-width: 52ch;
  color: var(--slate-400);
  font-size: clamp(1rem, 1.4vw, 1.08rem);
  line-height: 1.85;
  margin: 0;
}

.page-products .pd-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-products .btn--cut,
.page-products .pd-btn-cut {
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
  filter: drop-shadow(5px 5px 0 rgba(4, 9, 28, .9));
  transition: filter var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-products .pd-btn-cut:hover,
.page-products .pd-btn-cut:focus-visible {
  filter: drop-shadow(2px 2px 0 rgba(4, 9, 28, .9));
  transform: translate(3px, 3px);
}

.page-products .pd-hero__facts {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 14px 30px;
  margin: 32px 0 0;
  padding: 22px 0 0;
  border-top: 2px solid var(--line-600);
}

.page-products .pd-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-products .pd-hero__facts strong {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  font-size: clamp(1.36rem, 3vw, 1.86rem);
  color: var(--gold-500);
}

.page-products .pd-hero__facts span {
  color: var(--slate-400);
  font-size: .88rem;
}

/* ---------- 两栏壳 ---------- */
.page-products .pd-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.4vw, 42px);
  padding-top: clamp(30px, 4.6vw, 62px);
}

@media (min-width: 1000px) {
  .page-products .pd-shell {
    grid-template-columns: var(--rail-w) minmax(0, 1fr);
    align-items: start;
  }
  .page-products .pd-rail {
    position: sticky;
    top: calc(var(--header-h) + 22px);
  }
}

.page-products .pd-body {
  min-width: 0;
}

/* ---------- 章节骨架 ---------- */
.page-products .pd-sec {
  scroll-margin-top: calc(var(--header-h) + 26px);
  padding-bottom: clamp(38px, 5.4vw, 74px);
}

.page-products .pd-sec + .pd-sec {
  border-top: 2px solid var(--line-600);
  padding-top: clamp(34px, 5vw, 62px);
}

.page-products .pd-sec--last {
  padding-bottom: 0;
}

.page-products .pd-sec__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.78rem, 4.4vw, 2.86rem);
  line-height: 1.06;
  letter-spacing: -.015em;
  color: var(--warm-100);
  margin: 8px 0 12px;
  text-wrap: balance;
}

.page-products .pd-sec__lead {
  max-width: 62ch;
  color: var(--slate-400);
  line-height: 1.85;
  margin: 0;
}

/* ---------- 产品线横向轨道 ---------- */
.page-products .pd-track {
  display: flex;
  gap: var(--gap);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 20px;
  margin-top: 26px;
}

.page-products .pd-track > * {
  scroll-snap-align: start;
}

.page-products .pd-line {
  flex: 0 0 var(--pd-line-w);
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: var(--ink-700);
  border: 2px solid var(--line-600);
  box-shadow: var(--shadow-hard);
  padding: 22px;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-products .pd-line:hover,
.page-products .pd-line:focus-within {
  border-color: var(--gold-500);
  box-shadow: var(--shadow-gold);
  transform: translate(-3px, -3px);
}

.page-products .pd-line__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-products .pd-line__num {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--gold-500);
  line-height: 1;
}

.page-products .pd-line__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.3rem, 3vw, 1.62rem);
  line-height: 1.16;
  color: var(--warm-100);
  margin: 0;
}

.page-products .pd-line__text {
  color: var(--slate-400);
  font-size: .95rem;
  line-height: 1.8;
  margin: 0;
  flex: 1 1 auto;
}

.page-products .pd-line__media {
  margin: 4px 0 0;
}

.page-products .pd-line__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-products .pd-line__meta {
  font-size: .78rem;
  letter-spacing: .04em;
  color: var(--celadon-200);
  margin: 0;
  padding-top: 10px;
  border-top: 2px solid var(--line-600);
}

/* ---------- 安装步骤 ---------- */
.page-products .pd-install {
  margin-top: 26px;
}

.page-products .pd-steps {
  list-style: none;
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
}

.page-products .pd-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 20px 22px;
  background: var(--ink-800);
  border: 2px solid var(--line-600);
  border-left: 6px solid var(--gold-500);
}

.page-products .pd-step .step__num {
  font-size: clamp(1.5rem, 3.6vw, 2.1rem);
  line-height: 1;
  color: var(--gold-500);
  font-variant-numeric: tabular-nums;
}

.page-products .pd-step .step__body h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.22rem;
  color: var(--warm-100);
  margin: 0 0 8px;
}

.page-products .pd-step .step__body p {
  margin: 0;
  color: var(--slate-400);
  font-size: .95rem;
  line-height: 1.8;
}

.page-products .pd-step.step--done {
  border-left-color: var(--celadon-400);
}

.page-products .pd-aside {
  margin-top: 0;
}

.page-products .pd-aside__title {
  font-size: .78rem;
  letter-spacing: .1em;
  color: var(--gold-500);
  margin: 0 0 12px;
  text-transform: uppercase;
}

.page-products .pd-aside ul {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 9px;
  color: var(--warm-100);
  font-size: .94rem;
  line-height: 1.78;
}

.page-products .pd-install__link {
  margin: 14px 0 0;
}

/* ---------- 订阅切换 ---------- */
.page-products .pd-sub {
  display: grid;
  gap: clamp(22px, 3vw, 38px);
  margin-top: 26px;
  align-items: center;
}

@media (min-width: 820px) {
  .page-products .pd-sub {
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
  }
}

.page-products .pd-sub__media {
  margin: 0;
}

.page-products .pd-sub__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-products .pd-sub__text {
  color: var(--slate-400);
  line-height: 1.85;
  margin: 0 0 18px;
}

.page-products .pd-sub__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
  counter-reset: none;
}

.page-products .pd-sub__steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: center;
  padding: 13px 16px;
  background: var(--ink-700);
  border: 2px solid var(--line-600);
  color: var(--warm-100);
  font-size: .95rem;
  line-height: 1.7;
}

.page-products .pd-sub__n {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  background: var(--gold-500);
  color: var(--ink-900);
  font-weight: 600;
  font-size: .88rem;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 7px), calc(100% - 7px) 100%, 0 100%);
}

.page-products .pd-sub__note {
  font-size: .78rem;
  letter-spacing: .05em;
  color: var(--celadon-200);
  margin: 16px 0 0;
}

.page-products .pd-sub__cta {
  margin: 18px 0 0;
}

/* ---------- 批次归档 ---------- */
.page-products .pd-archive-media {
  margin: 26px 0 0;
}

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

.page-products .pd-archive-meta {
  margin-top: 16px;
}

.page-products .pd-archive-meta p {
  margin: 0;
  color: var(--slate-400);
  font-size: .92rem;
  line-height: 1.8;
}

.page-products .pd-copy {
  color: var(--gold-500);
  cursor: pointer;
  padding: 2px 6px;
  border: 2px solid var(--gold-500);
  font-weight: 600;
}

.page-products .pd-tabs {
  margin-top: 24px;
}

.page-products .pd-tabs .tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

.page-products .pd-tabs .tabs__tab {
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .04em;
  padding: 10px 18px;
  background: var(--ink-800);
  border: 2px solid var(--line-600);
  color: var(--slate-400);
  cursor: pointer;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-products .pd-tabs .tabs__tab:hover {
  color: var(--gold-300);
  border-color: var(--gold-300);
}

.page-products .pd-tabs .tabs__tab[aria-selected="true"] {
  border-color: var(--gold-500);
  color: var(--gold-500);
  background: rgba(217, 164, 65, .1);
}

.page-products .pd-table {
  width: 100%;
  min-width: 660px;
  border-collapse: collapse;
  font-size: .93rem;
}

.page-products .pd-table__caption {
  text-align: left;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .06em;
  color: var(--slate-400);
  padding-bottom: 10px;
}

.page-products .pd-table th,
.page-products .pd-table td {
  border: 2px solid var(--line-600);
  padding: 13px 16px;
  text-align: left;
  vertical-align: top;
  color: var(--warm-100);
  line-height: 1.7;
}

.page-products .pd-table thead th {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: .74rem;
  letter-spacing: .07em;
  background: var(--ink-800);
  color: var(--slate-400);
  white-space: nowrap;
}

.page-products .pd-table tbody th {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.06rem;
  white-space: nowrap;
  color: var(--warm-100);
}

.page-products .pd-table tbody tr:nth-child(even) {
  background: rgba(23, 41, 79, .58);
}

.page-products .pd-table tbody tr:hover {
  background: rgba(217, 164, 65, .1);
}

.page-products .pd-table__num {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.page-products .pd-table__row--current th {
  border-left: 5px solid var(--gold-500);
}

.page-products .pd-table__row--current {
  background: rgba(217, 164, 65, .07);
}

.page-products .pd-note {
  margin: 22px 0 0;
  color: var(--slate-400);
  font-size: .92rem;
  line-height: 1.82;
  border-left: 6px solid var(--line-600);
  padding-left: 16px;
}

.page-products .pd-note a {
  color: var(--gold-300);
  border-bottom: 1px solid currentColor;
  text-decoration: none;
}

.page-products .pd-note a:hover {
  color: var(--gold-500);
}

/* ---------- 资料导航 ---------- */
.page-products .pd-clusters {
  display: grid;
  gap: 16px;
  margin-top: 26px;
}

@media (min-width: 640px) {
  .page-products .pd-clusters {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1120px) {
  .page-products .pd-clusters {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-products .pd-cluster {
  display: grid;
  gap: 10px;
  align-content: start;
  background: var(--ink-800);
  border: 2px solid var(--line-600);
  padding: 22px;
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-products .pd-cluster:hover {
  border-color: var(--gold-500);
  transform: translateY(-3px);
}

.page-products .pd-cluster__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.34rem;
  letter-spacing: .01em;
  color: var(--warm-100);
  margin: 0;
}

.page-products .pd-cluster__text {
  margin: 0;
  color: var(--slate-400);
  font-size: .93rem;
  line-height: 1.78;
}

.page-products .pd-cluster__cats {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 4px 0 0;
  padding: 0;
}

/* ---------- 下一步 ---------- */
.page-products .pd-next {
  display: grid;
  gap: 16px;
  margin-top: 26px;
}

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

.page-products .pd-next__card {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 24px;
  text-decoration: none;
}

.page-products .pd-next__num {
  font-size: .76rem;
  letter-spacing: .08em;
  color: var(--gold-500);
  margin: 0;
}

.page-products .pd-next__card .card__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.24rem;
  line-height: 1.24;
  margin: 0;
}

.page-products .pd-next__text {
  margin: 0;
  color: var(--slate-400);
  font-size: .93rem;
  line-height: 1.78;
}

.page-products .pd-next__go {
  justify-self: start;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: .82rem;
  color: var(--gold-500);
  border-bottom: 2px solid currentColor;
}

/* ---------- 媒体容器兜底 ---------- */
.page-products .media {
  overflow: hidden;
}

.page-products .media img {
  max-width: 100%;
  height: auto;
}

.page-products .pd-line__media img,
.page-products .pd-sub__media img {
  height: 100%;
}

@media (max-width: 480px) {
  .page-products .pd-hero__media {
    inset: 0 0 0 55%;
    opacity: .7;
  }
  .page-products .pd-hero__veil {
    background: linear-gradient(96deg, var(--ink-900) 22%, rgba(10, 20, 48, .74) 62%, rgba(10, 20, 48, .42) 100%);
  }
  .page-products .pd-step {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pd-line,
  .page-products .pd-cluster,
  .page-products .pd-btn-cut,
  .page-products .pd-tabs .tabs__tab {
    transition: none;
  }
  .page-products .pd-track {
    scroll-snap-type: none;
  }
}
</main>