.page-products {
  --pd-gap: clamp(14px, 2.2vw, 24px);
  padding-bottom: clamp(40px, 7vw, 90px);
  color: var(--xk-silver);
}

.page-products .pd-mono {
  font-family: var(--xk-font-mono);
  font-size: .82em;
  letter-spacing: .04em;
  opacity: .85;
}

/* ---------- 首屏 ---------- */
.page-products .pd-hero {
  position: relative;
  padding-block: clamp(22px, 4vw, 46px) clamp(28px, 5vw, 60px);
}

.page-products .pd-hero__inner {
  display: grid;
  gap: clamp(26px, 4.5vw, 52px);
  align-items: start;
}

.page-products .pd-hero__title {
  margin: 14px 0 0;
  font-family: var(--xk-font-display);
  font-size: clamp(30px, 6.2vw, 62px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -.02em;
  color: var(--xk-silver);
  text-wrap: balance;
}

.page-products .pd-hero__title em {
  display: block;
  margin-top: .12em;
  font-style: normal;
  font-weight: 300;
  color: var(--xk-orange);
}

.page-products .pd-hero__lede {
  margin: 20px 0 0;
  max-width: 58ch;
  font-size: clamp(15px, 1.9vw, 17px);
  line-height: 1.82;
  color: rgba(232, 236, 241, .8);
}

.page-products .pd-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-products .pd-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--xk-line);
  font-family: var(--xk-font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--xk-mist);
}

/* ---------- 版本分段切换 ---------- */
.page-products .pd-switch {
  position: relative;
  padding: clamp(14px, 2.4vw, 22px);
  border-radius: var(--xk-radius-l);
  border: 1px solid var(--xk-line);
  background:
    radial-gradient(130% 100% at 92% 0%, rgba(108, 92, 231, .3), transparent 64%),
    rgba(19, 31, 69, .74);
  box-shadow: var(--xk-shadow-float);
}

.page-products .pd-switch__radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.page-products .pd-switch__bar {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5px;
  padding: 5px;
  border-radius: 999px;
  border: 1px solid var(--xk-line);
  background: rgba(11, 27, 58, .74);
}

.page-products .pd-switch__label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 6px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  text-align: center;
  color: var(--xk-mist);
  cursor: pointer;
  transition: background .3s var(--xk-ease), color .3s var(--xk-ease);
}

.page-products #pd-v-stable:checked ~ .pd-switch__bar label[for="pd-v-stable"],
.page-products #pd-v-beta:checked ~ .pd-switch__bar label[for="pd-v-beta"] {
  background: var(--xk-orange);
  color: var(--xk-ink);
}

.page-products #pd-v-beta:checked ~ .pd-switch__bar label[for="pd-v-beta"] {
  background: var(--xk-violet);
  color: var(--xk-silver);
}

.page-products #pd-v-stable:focus-visible ~ .pd-switch__bar label[for="pd-v-stable"],
.page-products #pd-v-beta:focus-visible ~ .pd-switch__bar label[for="pd-v-beta"] {
  outline: 2px solid var(--xk-teal);
  outline-offset: 2px;
}

.page-products .pd-panel {
  display: none;
  margin-top: 16px;
  padding: clamp(16px, 2.4vw, 22px);
  border-radius: var(--xk-radius-m);
  border: 1px solid var(--xk-line);
  background: rgba(11, 27, 58, .6);
}

.page-products #pd-v-stable:checked ~ .pd-panel--stable,
.page-products #pd-v-beta:checked ~ .pd-panel--beta {
  display: block;
}

.page-products .pd-panel__title {
  margin: 0;
  font-family: var(--xk-font-display);
  font-size: clamp(18px, 2.4vw, 22px);
  font-weight: 700;
  color: var(--xk-silver);
}

.page-products .pd-panel__desc {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(232, 236, 241, .78);
}

.page-products .pd-panel__list {
  list-style: none;
  margin: 16px 0 20px;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-products .pd-panel__list li {
  position: relative;
  padding-left: 20px;
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(232, 236, 241, .82);
}

.page-products .pd-panel__list li::before {
  content: "";
  position: absolute;
  left: 3px;
  top: .62em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--xk-teal);
}

/* ---------- 章节骨架 ---------- */
.page-products .pd-sec {
  padding-block: clamp(38px, 6.4vw, 84px);
  border-top: 1px solid var(--xk-line);
}

.page-products .pd-sec__head {
  display: grid;
  gap: 12px;
  max-width: 64ch;
  margin-bottom: clamp(22px, 3.4vw, 38px);
}

.page-products .pd-sec__title {
  margin: 0;
  font-family: var(--xk-font-display);
  font-size: clamp(24px, 4vw, 40px);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -.015em;
  color: var(--xk-silver);
  text-wrap: balance;
}

.page-products .pd-sec__lede {
  margin: 0;
  font-size: clamp(14.5px, 1.8vw, 16.5px);
  line-height: 1.8;
  color: rgba(232, 236, 241, .78);
}

/* ---------- 能力轨道与错落卡阵 ---------- */
.page-products .pd-track {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  list-style: none;
  margin: 0 0 clamp(18px, 2.8vw, 28px);
  padding: 0;
}

.page-products .pd-track__item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  border-radius: var(--xk-radius-s);
  border: 1px solid var(--xk-line);
  background: rgba(28, 42, 87, .4);
  font-size: 12.5px;
  line-height: 1.4;
  color: rgba(232, 236, 241, .88);
}

.page-products .pd-track__dot {
  flex: none;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--xk-violet);
  box-shadow: 0 0 0 3px var(--xk-violet-soft);
}

.page-products .pd-caps {
  display: grid;
  gap: var(--pd-gap);
  grid-template-columns: minmax(0, 1fr);
}

.page-products .pd-cap {
  position: relative;
  padding: clamp(16px, 2.2vw, 24px);
  border-radius: var(--xk-radius-m);
  border: 1px solid var(--xk-line);
  background: linear-gradient(180deg, rgba(28, 42, 87, .62), rgba(19, 31, 69, .48));
  transition: transform .32s var(--xk-ease), border-color .32s var(--xk-ease), box-shadow .32s var(--xk-ease);
}

.page-products .pd-cap:hover,
.page-products .pd-cap:focus-within {
  transform: translateY(-4px);
  border-color: rgba(108, 92, 231, .58);
  box-shadow: var(--xk-shadow-float);
}

.page-products .pd-cap__num {
  font-family: var(--xk-font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--xk-orange);
}

.page-products .pd-cap__title {
  margin: 9px 0 0;
  font-family: var(--xk-font-display);
  font-size: clamp(15.5px, 1.9vw, 18px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--xk-silver);
}

.page-products .pd-cap__text {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: 1.74;
  color: rgba(232, 236, 241, .76);
}

.page-products .pd-cap__scene {
  display: inline-block;
  margin-top: 14px;
  font-family: var(--xk-font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--xk-mist);
  transition: color .3s var(--xk-ease);
}

.page-products .pd-cap:hover .pd-cap__scene,
.page-products .pd-cap:focus-within .pd-cap__scene {
  color: var(--xk-orange);
}

/* ---------- 数据条 ---------- */
.page-products .pd-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(18px, 3vw, 32px);
  border: 1px solid var(--xk-line);
  border-radius: var(--xk-radius-m);
  background: var(--xk-line);
  overflow: hidden;
}

.page-products .pd-stat {
  padding: 16px 14px;
  background: rgba(11, 27, 58, .72);
}

.page-products .pd-stat__num {
  display: block;
  font-family: var(--xk-font-mono);
  font-size: clamp(19px, 2.8vw, 27px);
  font-weight: 600;
  line-height: 1.1;
  color: var(--xk-teal);
}

.page-products .pd-stat__label {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--xk-mist);
}

/* ---------- 图文分栏 ---------- */
.page-products .pd-split {
  display: grid;
  gap: clamp(22px, 3.8vw, 46px);
  align-items: center;
}

.page-products .pd-split__media img,
.page-products .pd-media-band img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--xk-radius-m);
}

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

/* ---------- 通知方式 ---------- */
.page-products .pd-notify {
  display: grid;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .pd-notify li {
  display: grid;
  gap: 6px;
  padding: 14px 16px;
  border-radius: var(--xk-radius-s);
  border: 1px solid var(--xk-line);
  border-left: 2px solid var(--xk-orange);
  background: rgba(28, 42, 87, .34);
}

.page-products .pd-notify__tag {
  font-family: var(--xk-font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--xk-orange);
}

.page-products .pd-notify__text {
  font-size: 13.5px;
  line-height: 1.72;
  color: rgba(232, 236, 241, .8);
}

/* ---------- 规则折叠 ---------- */
.page-products .pd-acc {
  display: grid;
  gap: 10px;
  margin-top: 22px;
}

.page-products .pd-acc__item {
  border-radius: var(--xk-radius-s);
  border: 1px solid var(--xk-line);
  background: rgba(28, 42, 87, .34);
  overflow: hidden;
  transition: border-color .3s var(--xk-ease), background .3s var(--xk-ease);
}

.page-products .pd-acc__item[open] {
  border-color: rgba(108, 92, 231, .56);
  background: rgba(28, 42, 87, .52);
}

.page-products .pd-acc__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  font-size: 14.5px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--xk-silver);
  cursor: pointer;
  list-style: none;
}

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

.page-products .pd-acc__summary::after {
  content: "+";
  flex: none;
  font-family: var(--xk-font-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--xk-orange);
}

.page-products .pd-acc__item[open] .pd-acc__summary::after {
  content: "−";
}

.page-products .pd-acc__summary:focus-visible {
  outline: 2px solid var(--xk-teal);
  outline-offset: -3px;
}

.page-products .pd-acc__body {
  padding: 0 16px 16px;
  font-size: 13.5px;
  line-height: 1.78;
  color: rgba(232, 236, 241, .78);
}

/* ---------- 测试版阅读路径 ---------- */
.page-products .pd-media-band {
  display: block;
  margin: 0 0 clamp(20px, 3vw, 30px);
}

.page-products .pd-steps {
  display: grid;
  gap: var(--pd-gap);
  grid-template-columns: minmax(0, 1fr);
}

.page-products .pd-step {
  padding: clamp(16px, 2.2vw, 22px);
  border-radius: var(--xk-radius-m);
  border: 1px solid var(--xk-line);
  background: rgba(19, 31, 69, .56);
}

.page-products .pd-step__idx {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid rgba(108, 92, 231, .62);
  background: var(--xk-violet-soft);
  font-family: var(--xk-font-mono);
  font-size: 12px;
  color: var(--xk-silver);
}

.page-products .pd-step__title {
  margin: 12px 0 0;
  font-family: var(--xk-font-display);
  font-size: clamp(15px, 1.8vw, 17px);
  font-weight: 700;
  color: var(--xk-silver);
}

.page-products .pd-step__text {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: 1.74;
  color: rgba(232, 236, 241, .76);
}

.page-products .pd-note {
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  padding: 14px 16px;
  border-radius: var(--xk-radius-s);
  border: 1px dashed var(--xk-line-strong);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--xk-mist);
}

/* ---------- 小屏体验 ---------- */
.page-products .pd-mini {
  display: grid;
  gap: 10px;
  margin: 22px 0 24px;
}

.page-products .pd-mini__card {
  padding: 14px 16px;
  border-radius: var(--xk-radius-s);
  border: 1px solid var(--xk-line);
  background: rgba(28, 42, 87, .34);
}

.page-products .pd-mini__tag {
  display: block;
  font-family: var(--xk-font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--xk-teal);
}

.page-products .pd-mini__card p {
  margin: 7px 0 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: rgba(232, 236, 241, .8);
}

/* ---------- 版本对照表 ---------- */
.page-products .pd-table-wrap {
  border-radius: var(--xk-radius-m);
  border: 1px solid var(--xk-line);
  background: rgba(11, 27, 58, .6);
  overflow-x: auto;
}

.page-products .pd-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 13.5px;
}

.page-products .pd-table__caption {
  padding: 14px 16px 0;
  text-align: left;
  font-family: var(--xk-font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--xk-mist);
}

.page-products .pd-table th,
.page-products .pd-table td {
  padding: 13px 16px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--xk-line);
}

.page-products .pd-table thead th {
  font-family: var(--xk-font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: .08em;
  color: var(--xk-mist);
  background: rgba(28, 42, 87, .58);
}

.page-products .pd-table tbody th {
  font-weight: 600;
  color: var(--xk-silver);
  white-space: nowrap;
}

.page-products .pd-table td {
  line-height: 1.68;
  color: rgba(232, 236, 241, .78);
}

.page-products .pd-table .pd-col-beta {
  background: rgba(108, 92, 231, .1);
}

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

.page-products .pd-table-wrap + .pd-media-band {
  margin-top: clamp(20px, 3vw, 30px);
}

/* ---------- 收尾 ---------- */
.page-products .pd-outro {
  display: grid;
  gap: 18px;
  margin-top: clamp(22px, 3.4vw, 34px);
  padding: clamp(20px, 3vw, 30px);
  border-radius: var(--xk-radius-l);
  border: 1px solid var(--xk-line);
  background:
    radial-gradient(120% 140% at 6% 0%, rgba(255, 140, 66, .16), transparent 58%),
    rgba(19, 31, 69, .7);
}

.page-products .pd-outro__title {
  margin: 0;
  font-family: var(--xk-font-display);
  font-size: clamp(19px, 2.6vw, 24px);
  font-weight: 700;
  color: var(--xk-silver);
}

.page-products .pd-outro__body {
  margin: 10px 0 0;
  max-width: 52ch;
  font-size: 14px;
  line-height: 1.78;
  color: rgba(232, 236, 241, .78);
}

.page-products .pd-outro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-products .pd-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-products .pd-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-products .pd-track {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-products .pd-caps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .pd-outro {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 900px) {
  .page-products .pd-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-products .pd-hero__inner {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    align-items: center;
  }
  .page-products .pd-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.02fr);
  }
  .page-products .pd-split--flip {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 1fr);
  }
  .page-products .pd-split--flip .pd-split__media {
    order: -1;
  }
  .page-products .pd-stats {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

@media (min-width: 1040px) {
  .page-products .pd-track {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
  .page-products .pd-caps {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }
  .page-products .pd-cap:nth-child(1) { grid-column: span 5; }
  .page-products .pd-cap:nth-child(2) { grid-column: span 4; }
  .page-products .pd-cap:nth-child(3) { grid-column: span 3; }
  .page-products .pd-cap:nth-child(4) { grid-column: span 3; }
  .page-products .pd-cap:nth-child(5) { grid-column: span 5; }
  .page-products .pd-cap:nth-child(6) { grid-column: span 4; }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pd-cap,
  .page-products .pd-cap__scene,
  .page-products .pd-switch__label,
  .page-products .pd-acc__item {
    transition: none;
  }
  .page-products .pd-cap:hover,
  .page-products .pd-cap:focus-within {
    transform: none;
  }
}