.page-products {
  --pd-gap: 32px;
  --pd-hair: 1px;
  --pd-scan: linear-gradient(90deg, var(--ay-cyan), var(--ay-violet));
  --pd-tier-a: #2FE6D6;
  --pd-tier-b: #7A5CFF;
  --pd-tier-c: #FFB454;
  padding-bottom: 96px;
  overflow-x: clip;
}

/* ============ 首屏拼贴 ============ */
.page-products .pd-hero {
  display: grid;
  gap: 28px;
  padding-block: 40px 24px;
  align-items: start;
}

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

.page-products .pd-hero__text h1 {
  margin: 14px 0 16px;
  font-size: clamp(30px, 7.4vw, 58px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  font-weight: 900;
  color: var(--ay-white);
  max-width: 16ch;
}

.page-products .pd-hero__lead {
  margin: 0;
  max-width: 62ch;
  color: var(--ay-mute);
  font-size: 16px;
  line-height: 1.8;
}

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

.page-products .pd-hero__visual {
  margin: 0;
  border: var(--pd-hair) solid var(--ay-line);
  background: var(--ay-panel);
  box-shadow: var(--ay-shadow);
}

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

.page-products .pd-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--ay-line);
  border: var(--pd-hair) solid var(--ay-line);
}

.page-products .pd-hero__stats .ay-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 16px;
  background: var(--ay-panel);
}

.page-products .pd-hero__stats .ay-stat__value {
  font-size: clamp(24px, 5vw, 34px);
  font-weight: 700;
  line-height: 1;
  color: var(--ay-amber);
  letter-spacing: 0.02em;
}

.page-products .pd-hero__stats .ay-stat__label {
  font-size: 13px;
  line-height: 1.55;
  color: var(--ay-mute);
}

/* ============ 粘性筛选条 ============ */
.page-products .pd-filterbar {
  position: sticky;
  top: calc(var(--ay-nav-top, 0px) + var(--ay-nav-h, 78px));
  z-index: 6;
  margin-top: 40px;
  border-top: var(--pd-hair) solid var(--ay-line);
  border-bottom: var(--pd-hair) solid var(--ay-line);
  background: rgba(5, 11, 26, 0.95);
  backdrop-filter: blur(10px);
}

.page-products .pd-filterbar::before {
  content: "";
  display: block;
  height: 2px;
  background: var(--pd-scan);
  background-size: 220% 100%;
  animation: pd-scan 8s linear infinite;
}

@keyframes pd-scan {
  0% { background-position: 0% 0; }
  100% { background-position: 220% 0; }
}

.page-products .pd-filterbar__inner {
  padding-block: 18px 20px;
}

.page-products .pd-filterbar__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 16px;
  margin-bottom: 14px;
}

.page-products .pd-filterbar__head h2 {
  margin: 0;
  font-size: clamp(18px, 3vw, 22px);
  font-weight: 800;
  color: var(--ay-white);
}

.page-products .pd-filterbar__hint {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ay-cyan);
}

.page-products .pd-fields {
  display: grid;
  gap: 14px;
}

.page-products .pd-field {
  display: grid;
  gap: 8px;
}

.page-products .pd-field__label {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--ay-mute);
  text-transform: uppercase;
}

.page-products .pd-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-products .pd-chip {
  appearance: none;
  border: var(--pd-hair) solid var(--ay-line);
  background: var(--ay-panel);
  color: var(--ay-mute);
  font-family: inherit;
  font-size: 13px;
  line-height: 1;
  padding: 9px 13px;
  cursor: pointer;
  transition: border-color 0.18s ease, color 0.18s ease, transform 0.18s ease, background-color 0.18s ease;
}

.page-products .pd-chip:hover {
  border-color: var(--ay-cyan);
  color: var(--ay-white);
  transform: translateY(-2px);
}

.page-products .pd-chip:focus-visible {
  outline: 2px solid var(--ay-cyan);
  outline-offset: 2px;
}

.page-products .pd-chip--on {
  background: linear-gradient(100deg, var(--ay-cyan), var(--ay-violet));
  border-color: transparent;
  color: var(--ay-void);
  font-weight: 700;
}

.page-products .pd-chip--a {
  border-color: var(--pd-tier-a);
  color: var(--pd-tier-a);
}

.page-products .pd-chip--b {
  border-color: var(--pd-tier-b);
  color: var(--pd-tier-b);
}

.page-products .pd-chip--c {
  border-color: var(--pd-tier-c);
  color: var(--pd-tier-c);
}

/* ============ 通用章节 ============ */
.page-products .pd-section {
  margin-top: 84px;
}

.page-products .pd-section--quiet {
  padding-block: 56px;
  border-top: var(--pd-hair) solid var(--ay-line);
  border-bottom: var(--pd-hair) solid var(--ay-line);
  background: linear-gradient(180deg, rgba(10, 20, 40, 0.65), rgba(5, 11, 26, 0));
}

.page-products .pd-section__head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 28px;
}

.page-products .pd-section__head h2 {
  margin: 0 0 8px;
  font-size: clamp(22px, 4.4vw, 36px);
  line-height: 1.2;
  font-weight: 800;
  color: var(--ay-white);
}

.page-products .pd-section__head .ay-section__note {
  margin: 0;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ay-mute);
}

.page-products .pd-note {
  margin: 24px 0 0;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ay-mute);
}

/* ============ 参数表 ============ */
.page-products .pd-tablewrap {
  overflow-x: auto;
  border: var(--pd-hair) solid var(--ay-line);
  box-shadow: var(--ay-shadow);
  background: var(--ay-panel);
  -webkit-overflow-scrolling: touch;
}

.page-products .pd-table {
  width: 100%;
  min-width: 780px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-products .pd-table__caption {
  padding: 12px 16px;
  text-align: left;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ay-mute);
  border-bottom: var(--pd-hair) solid var(--ay-line);
}

.page-products .pd-table th,
.page-products .pd-table td {
  padding: 13px 16px;
  text-align: left;
  border-bottom: var(--pd-hair) solid var(--ay-line);
  color: var(--ay-white);
  white-space: nowrap;
}

.page-products .pd-table thead th {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ay-mute);
  text-transform: uppercase;
  background: rgba(30, 44, 72, 0.4);
}

.page-products .pd-table tbody tr:nth-child(even) {
  background: rgba(10, 20, 40, 0.6);
}

.page-products .pd-table tbody tr:hover {
  background: rgba(47, 230, 214, 0.06);
}

.page-products .pd-table tbody th[scope="row"] {
  color: var(--ay-cyan);
  font-weight: 600;
}

/* ============ 档位徽标 ============ */
.page-products .pd-tier {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 26px;
  padding: 3px 8px;
  font-size: 12px;
  font-weight: 700;
  font-family: var(--ay-mono);
  border: var(--pd-hair) solid currentColor;
  line-height: 1.3;
}

.page-products .pd-tier--a { color: var(--pd-tier-a); }
.page-products .pd-tier--b { color: var(--pd-tier-b); }
.page-products .pd-tier--c { color: var(--pd-tier-c); }

/* ============ 产品线矩阵 ============ */
.page-products .pd-matrix {
  display: grid;
  gap: 28px;
}

.page-products .pd-matrix__visual {
  margin: 0;
  border: var(--pd-hair) solid var(--ay-line);
  background: var(--ay-panel);
}

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

.page-products .pd-matrix__list {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--ay-line);
  border: var(--pd-hair) solid var(--ay-line);
}

.page-products .pd-line {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "no name"
    "no text"
    "no meta";
  gap: 4px 14px;
  padding: 18px 16px;
  background: var(--ay-void);
  transition: background-color 0.18s ease, box-shadow 0.18s ease;
}

.page-products .pd-line:hover {
  background: var(--ay-panel);
  box-shadow: inset 3px 0 0 var(--ay-cyan);
}

.page-products .pd-line__no {
  grid-area: no;
  font-size: 12px;
  color: var(--ay-cyan);
  letter-spacing: 0.06em;
  padding-top: 4px;
}

.page-products .pd-line h3 {
  grid-area: name;
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--ay-white);
  line-height: 1.4;
}

.page-products .pd-line p {
  grid-area: text;
  margin: 4px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ay-mute);
}

.page-products .pd-line__meta {
  grid-area: meta;
  margin-top: 8px;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ay-amber);
}

/* ============ 六大技术维度 ============ */
.page-products .pd-dim__visual {
  margin: 0 0 24px;
  border: var(--pd-hair) solid var(--ay-line);
  background: var(--ay-panel);
}

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

.page-products .pd-dims {
  display: grid;
  gap: 1px;
  background: var(--ay-line);
  border: var(--pd-hair) solid var(--ay-line);
}

.page-products .pd-dim {
  background: var(--ay-void);
  transition: background-color 0.18s ease;
}

.page-products .pd-dim[open] {
  background: var(--ay-panel);
}

.page-products .pd-dim summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding: 18px 16px;
  cursor: pointer;
  list-style: none;
  transition: color 0.18s ease;
}

.page-products .pd-dim summary::-webkit-details-marker {
  display: none;
}

.page-products .pd-dim summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--ay-mono);
  font-size: 18px;
  color: var(--ay-cyan);
  line-height: 1;
}

.page-products .pd-dim[open] summary::after {
  content: "–";
}

.page-products .pd-dim summary:focus-visible {
  outline: 2px solid var(--ay-cyan);
  outline-offset: -2px;
}

.page-products .pd-dim__tag {
  font-size: 12px;
  color: var(--ay-amber);
  letter-spacing: 0.06em;
}

.page-products .pd-dim__name {
  font-size: 17px;
  font-weight: 700;
  color: var(--ay-white);
}

.page-products .pd-dim__hint {
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--ay-mute);
}

.page-products .pd-dim__body {
  padding: 0 16px 20px;
  max-width: 72ch;
}

.page-products .pd-dim__body p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ay-mute);
}

.page-products .pd-dim__body p:last-child {
  margin-bottom: 0;
}

/* ============ 参数卡 ============ */
.page-products .pd-card {
  position: relative;
  border: var(--pd-hair) solid var(--ay-line);
  background: var(--ay-panel);
  box-shadow: var(--ay-shadow);
  padding: 24px 18px 20px;
  overflow: hidden;
}

.page-products .pd-card__bg {
  position: absolute;
  inset: 0;
  opacity: 0.16;
  pointer-events: none;
}

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

.page-products .pd-card > *:not(.pd-card__bg) {
  position: relative;
}

.page-products .pd-card__head h3 {
  margin: 10px 0 12px;
  font-size: clamp(19px, 3.6vw, 26px);
  font-weight: 800;
  color: var(--ay-white);
  line-height: 1.3;
}

.page-products .pd-plate {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--ay-cyan);
  border: var(--pd-hair) solid var(--ay-line);
  padding: 5px 10px;
}

.page-products .pd-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.page-products .pd-card__specs {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 0;
  background: var(--ay-line);
  border: var(--pd-hair) solid var(--ay-line);
}

.page-products .pd-card__specs > div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 14px;
  background: rgba(5, 11, 26, 0.86);
}

.page-products .pd-card__specs dt {
  font-size: 13px;
  color: var(--ay-mute);
}

.page-products .pd-card__specs dd {
  margin: 0;
  font-size: 13px;
  color: var(--ay-white);
  text-align: right;
  letter-spacing: 0.02em;
}

.page-products .pd-card__foot {
  margin: 18px 0 0;
  font-size: 12px;
  color: var(--ay-mute);
  letter-spacing: 0.04em;
}

/* ============ 对比槽 ============ */
.page-products .pd-compare {
  margin-top: 28px;
  border: var(--pd-hair) solid var(--ay-cyan);
  background: var(--ay-panel);
  box-shadow: var(--ay-shadow);
}

.page-products .pd-compare__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
  padding: 16px 18px;
  border-bottom: var(--pd-hair) solid var(--ay-line);
}

.page-products .pd-compare__head h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 800;
  color: var(--ay-white);
}

.page-products .pd-compare__head p {
  margin: 0;
  font-size: 13px;
  color: var(--ay-mute);
}

.page-products .pd-compare__scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-products .pd-compare__table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 13px;
}

.page-products .pd-compare__table th,
.page-products .pd-compare__table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: var(--pd-hair) solid var(--ay-line);
  white-space: nowrap;
  color: var(--ay-white);
}

.page-products .pd-compare__table thead th {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ay-cyan);
  background: rgba(30, 44, 72, 0.42);
}

.page-products .pd-compare__table tbody th[scope="row"] {
  color: var(--ay-mute);
  font-weight: 500;
}

.page-products .pd-compare__empty {
  color: var(--ay-line) !important;
  font-style: normal;
}

.page-products .pd-compare__note {
  margin: 0;
  padding: 16px 18px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ay-mute);
  border-top: var(--pd-hair) solid var(--ay-line);
}

/* ============ 库存与价格 ============ */
.page-products .pd-stock {
  display: grid;
  gap: 28px;
}

.page-products .pd-stock__grid {
  display: grid;
  gap: 1px;
  background: var(--ay-line);
  border: var(--pd-hair) solid var(--ay-line);
}

.page-products .pd-stock__item {
  padding: 20px 16px;
  background: var(--ay-void);
  border-left: 3px solid transparent;
}

.page-products .pd-stock__item--live { border-left-color: var(--ay-cyan); }
.page-products .pd-stock__item--plan { border-left-color: var(--ay-violet); }
.page-products .pd-stock__item--future { border-left-color: var(--ay-amber); }

.page-products .pd-stock__item h3 {
  margin: 12px 0 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--ay-white);
}

.page-products .pd-stock__item p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--ay-mute);
}

.page-products .pd-stock__meta {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ay-amber);
  margin-bottom: 0 !important;
}

.page-products .pd-stock__visual {
  margin: 0;
  border: var(--pd-hair) solid var(--ay-line);
  background: var(--ay-panel);
}

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

.page-products .pd-tierex h3 {
  margin: 0 0 16px;
  font-size: 19px;
  font-weight: 800;
  color: var(--ay-white);
}

.page-products .pd-tierlist {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--ay-line);
  border: var(--pd-hair) solid var(--ay-line);
}

.page-products .pd-tierrow {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px;
  background: var(--ay-void);
}

.page-products .pd-tierrow strong {
  display: block;
  margin-bottom: 6px;
  font-size: 15px;
  color: var(--ay-white);
}

.page-products .pd-tierrow p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ay-mute);
}

/* ============ 版本记录 ============ */
.page-products .pd-version {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--ay-line);
  border: var(--pd-hair) solid var(--ay-line);
}

.page-products .pd-ver {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 18px;
  padding: 20px 16px;
  background: var(--ay-void);
  transition: background-color 0.18s ease;
}

.page-products .pd-ver:hover {
  background: var(--ay-panel);
}

.page-products .pd-ver__no {
  font-size: 13px;
  color: var(--ay-cyan);
  letter-spacing: 0.06em;
  padding-top: 3px;
}

.page-products .pd-ver__body h3 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ay-white);
}

.page-products .pd-ver__body p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ay-mute);
}

.page-products .pd-ver__tag {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ay-amber);
  border: var(--pd-hair) solid var(--ay-line);
  padding: 4px 9px;
}

/* ============ 收束区 ============ */
.page-products .pd-outro {
  margin-top: 96px;
}

.page-products .pd-outro__box {
  border: var(--pd-hair) solid var(--ay-line);
  background: linear-gradient(120deg, rgba(122, 92, 255, 0.14), rgba(47, 230, 214, 0.06) 60%, rgba(5, 11, 26, 0));
  padding: 32px 20px;
  box-shadow: var(--ay-shadow);
}

.page-products .pd-outro__box h2 {
  margin: 14px 0 14px;
  font-size: clamp(22px, 4.4vw, 34px);
  font-weight: 800;
  line-height: 1.22;
  color: var(--ay-white);
  max-width: 20ch;
}

.page-products .pd-outro__box p {
  margin: 0;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ay-mute);
}

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

/* ============ 响应式 ============ */
@media (min-width: 720px) {
  .page-products .pd-fields {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 24px;
  }

  .page-products .pd-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

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

  .page-products .pd-outro__box {
    padding: 44px 40px;
  }

  .page-products .pd-card {
    padding: 32px 28px 26px;
  }

  .page-products .pd-section__head {
    gap: 20px;
  }
}

@media (min-width: 1024px) {
  .page-products {
    --pd-gap: 48px;
  }

  .page-products .pd-hero {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 1fr);
    grid-template-areas:
      "text visual"
      "stats visual";
    gap: 34px 48px;
    padding-block: 64px 40px;
  }

  .page-products .pd-hero__text { grid-area: text; }
  .page-products .pd-hero__visual { grid-area: visual; align-self: stretch; }
  .page-products .pd-hero__stats { grid-area: stats; align-self: end; }

  .page-products .pd-fields {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .pd-section {
    margin-top: 116px;
  }

  .page-products .pd-section--quiet {
    padding-block: 80px;
  }

  .page-products .pd-matrix {
    grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.5fr);
    align-items: start;
    gap: 40px;
  }

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

  .page-products .pd-stock {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
    gap: 40px;
  }

  .page-products .pd-stock__visual {
    grid-column: 2;
    grid-row: 1;
    margin: 0;
  }

  .page-products .pd-tierex {
    grid-column: 1 / -1;
  }

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

  .page-products .pd-compare {
    position: sticky;
    bottom: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pd-filterbar::before {
    animation: none;
  }

  .page-products .pd-chip,
  .page-products .pd-line,
  .page-products .pd-ver,
  .page-products .pd-dim {
    transition: none;
  }

  .page-products .pd-chip:hover {
    transform: none;
  }
}