.page-products {
  --prod-node-size: 31px;
  display: block;
}

/* ---------- 首屏 ---------- */
.page-products .prod-hero {
  padding: 36px 0 8px;
}

.page-products .prod-hero__title {
  margin: 16px 0 20px;
  max-width: 22ch;
  font-size: clamp(32px, 6vw, 62px);
  line-height: 1.08;
  font-weight: 300;
  letter-spacing: -0.02em;
  color: var(--ky-white);
}

.page-products .prod-hero__lead {
  max-width: 46ch;
  margin: 0;
  font-size: 17px;
  line-height: 1.8;
  color: var(--ky-mist);
}

.page-products .prod-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .prod-facts li {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid var(--ky-line);
  border-radius: var(--ky-radius);
  background: var(--ky-glass);
  font-size: 13px;
  color: var(--ky-mist);
}

.page-products .prod-facts b {
  font-family: var(--ky-font-mono);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ky-cyan);
}

.page-products .prod-hero__rule {
  height: 1px;
  margin-top: 32px;
  background: linear-gradient(90deg, var(--ky-cyan), rgba(47, 240, 206, 0));
}

/* ---------- 主体两栏 ---------- */
.page-products .prod-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  padding: 16px 0 72px;
}

.page-products .prod-stream {
  display: grid;
  min-width: 0;
}

.page-products .prod-stream > .ky-section {
  padding: 36px 0;
}

.page-products .prod-stream .ky-h2 {
  margin: 0;
  font-size: clamp(24px, 4vw, 38px);
  line-height: 1.16;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--ky-white);
}

.page-products .prod-stream .ky-h3 {
  margin: 0;
  font-size: 18px;
  line-height: 1.4;
  font-weight: 500;
  color: var(--ky-white);
}

.page-products .ky-prose {
  max-width: 42ch;
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--ky-mist);
}

.page-products .ky-prose + .ky-prose {
  margin-top: 12px;
}

.page-products a {
  color: var(--ky-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 240, 206, 0.35);
  transition: color 0.2s var(--ky-ease), border-color 0.2s var(--ky-ease);
}

.page-products a:hover {
  color: var(--ky-cyan-soft);
  border-bottom-color: var(--ky-cyan-soft);
}

.page-products a:focus-visible,
.page-products button:focus-visible,
.page-products summary:focus-visible {
  outline: 2px solid var(--ky-cyan);
  outline-offset: 3px;
}

.page-products .ky-btn {
  border-bottom: none;
}

/* ---------- 章节标题 ---------- */
.page-products .prod-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 8px;
}

.page-products .prod-head__num {
  font-family: var(--ky-font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--ky-cyan);
}

/* ---------- 索引轴 ---------- */
.page-products .prod-axis .ky-axis__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 8px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .prod-axis .ky-axis__link {
  display: inline-block;
  padding: 4px 10px;
  border: 1px solid var(--ky-line-soft);
  border-radius: 999px;
  font-size: 12.5px;
  color: var(--ky-mist);
  border-bottom: 1px solid var(--ky-line-soft);
}

.page-products .prod-axis .ky-axis__link:hover {
  color: var(--ky-cyan);
  border-color: var(--ky-cyan);
}

/* ---------- 图 ---------- */
.page-products .prod-figure {
  margin: 24px 0 0;
}

.page-products .prod-figure .ky-figure__media {
  overflow: hidden;
  border-radius: var(--ky-radius);
  border: 1px solid var(--ky-line-soft);
}

.page-products .prod-figure img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

.page-products .prod-figure__caption,
.page-products .prod-figure .ky-figure__caption {
  margin-top: 10px;
  font-size: 12.5px;
  color: var(--ky-mist);
}

/* ---------- 技能树 ---------- */
.page-products .prod-tree {
  position: relative;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .prod-tree::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 18px;
  bottom: 18px;
  width: 1px;
  background: linear-gradient(180deg, var(--ky-cyan), rgba(47, 240, 206, 0.1));
}

.page-products .prod-tree__item {
  position: relative;
  padding-left: 46px;
}

.page-products .prod-tree__item + .prod-tree__item {
  margin-top: 14px;
}

.page-products .prod-tree__node {
  position: absolute;
  left: 0;
  top: 12px;
  z-index: 1;
  display: grid;
  place-items: center;
  width: var(--prod-node-size);
  height: var(--prod-node-size);
  border: 1px solid var(--ky-cyan);
  border-radius: 50%;
  background: var(--ky-ink);
  color: var(--ky-cyan);
  font-family: var(--ky-font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  transition: background 0.24s var(--ky-ease), color 0.24s var(--ky-ease);
}

.page-products .prod-tree__item:hover .prod-tree__node,
.page-products .prod-tree__item:focus-within .prod-tree__node {
  background: var(--ky-cyan);
  color: var(--ky-ink);
}

.page-products .prod-node {
  border: 1px solid var(--ky-line-soft);
  border-radius: var(--ky-radius);
  background: var(--ky-glass);
  backdrop-filter: blur(6px);
  transition: border-color 0.28s var(--ky-ease), background 0.28s var(--ky-ease);
}

.page-products .prod-node:hover,
.page-products .prod-node[open] {
  border-color: var(--ky-line);
  background: var(--ky-panel);
}

.page-products .prod-node__summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
}

.page-products .prod-node__summary::-webkit-details-marker {
  display: none;
}

.page-products .prod-node__name {
  font-size: 17px;
  font-weight: 500;
  color: var(--ky-white);
}

.page-products .prod-node__hint {
  font-size: 12.5px;
  color: var(--ky-mist);
}

.page-products .prod-node__summary::after {
  content: "展开";
  margin-left: auto;
  font-family: var(--ky-font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--ky-cyan);
}

.page-products .prod-node[open] .prod-node__summary::after {
  content: "收起";
}

.page-products .prod-node__body {
  padding: 0 18px 18px;
}

.page-products .prod-node__body p {
  margin: 0 0 10px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ky-mist);
}

.page-products .prod-node__fit {
  padding-left: 12px;
  border-left: 2px solid var(--ky-amber);
  color: var(--ky-white) !important;
}

.page-products .prod-node__links {
  margin: 0;
  font-size: 13.5px;
}

/* ---------- 最近记录 ---------- */
.page-products .prod-split {
  display: grid;
  gap: 24px;
  align-items: start;
}

.page-products .prod-points {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-products .prod-points li {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--ky-line-soft);
  font-size: 14px;
  line-height: 1.7;
  color: var(--ky-mist);
}

.page-products .prod-points__k {
  font-family: var(--ky-font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ky-cyan);
}

/* ---------- 适配清单规则 ---------- */
.page-products .prod-rules {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.page-products .prod-rule {
  border: 1px solid var(--ky-line-soft);
  border-radius: var(--ky-radius);
  background: var(--ky-glass);
  transition: border-color 0.28s var(--ky-ease);
}

.page-products .prod-rule[open] {
  border-color: var(--ky-line);
}

.page-products .prod-rule > summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding: 14px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  color: var(--ky-white);
}

.page-products .prod-rule > summary::-webkit-details-marker {
  display: none;
}

.page-products .prod-rule__num {
  font-family: var(--ky-font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--ky-ink);
  background: var(--ky-cyan);
  border-radius: 2px;
  padding: 3px 7px;
}

.page-products .prod-rule__title {
  font-weight: 500;
}

.page-products .prod-rule__state {
  margin-left: auto;
  width: 34px;
  height: 1px;
  background: var(--ky-cyan);
  position: relative;
}

.page-products .prod-rule__state::after {
  content: "";
  position: absolute;
  right: 0;
  top: -3px;
  width: 7px;
  height: 7px;
  border-right: 1px solid var(--ky-cyan);
  border-bottom: 1px solid var(--ky-cyan);
  transform: rotate(45deg);
}

.page-products .prod-rule[open] .prod-rule__state::after {
  transform: rotate(-135deg);
  top: 0;
}

.page-products .prod-rule__body {
  padding: 0 18px 18px 30px;
}

.page-products .prod-rule__body p {
  margin: 0 0 10px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--ky-mist);
}

.page-products .prod-rule__body p:last-child {
  margin-bottom: 0;
}

.page-products .prod-note {
  margin: 22px 0 0;
  padding: 14px 16px;
  border-left: 2px solid var(--ky-amber);
  background: rgba(255, 162, 58, 0.06);
  font-size: 14px;
  line-height: 1.75;
  color: var(--ky-mist);
}

/* ---------- 筛选条 ---------- */
.page-products .prod-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 24px 0 0;
}

.page-products .ky-filter__btn {
  appearance: none;
  padding: 7px 14px;
  border: 1px solid var(--ky-line);
  border-radius: 999px;
  background: transparent;
  color: var(--ky-mist);
  font-family: var(--ky-font-body);
  font-size: 13px;
  cursor: pointer;
  transition: color 0.2s var(--ky-ease), border-color 0.2s var(--ky-ease), background 0.2s var(--ky-ease);
}

.page-products .ky-filter__btn:hover {
  color: var(--ky-white);
  border-color: var(--ky-cyan);
}

.page-products .ky-filter__meta {
  margin-left: auto;
  font-family: var(--ky-font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ky-mist);
}

/* ---------- 设备对照 ---------- */
.page-products .prod-devices {
  display: grid;
  gap: 18px;
  margin-top: 22px;
}

.page-products .prod-device {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 18px;
  border: 1px solid var(--ky-line-soft);
  border-radius: var(--ky-radius);
  background: var(--ky-panel);
  transition: border-color 0.28s var(--ky-ease);
}

.page-products .prod-device:hover {
  border-color: var(--ky-cyan);
}

.page-products .prod-device__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ky-mist);
}

.page-products .prod-screen {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 8px;
  padding: 12px;
  border: 1px solid var(--ky-line);
  border-radius: 2px;
  background: linear-gradient(160deg, rgba(47, 240, 206, 0.12), rgba(6, 23, 19, 0.9) 62%);
}

.page-products .prod-screen--tv {
  aspect-ratio: 16 / 9;
}

.page-products .prod-screen--tablet {
  aspect-ratio: 4 / 3;
  max-width: 78%;
}

.page-products .prod-screen--phone {
  aspect-ratio: 9 / 19;
  max-width: 44%;
  margin-inline: auto;
}

.page-products .prod-screen__bar {
  display: block;
  height: 5px;
  border-radius: 2px;
  background: rgba(47, 240, 206, 0.38);
}

.page-products .prod-screen__bar:nth-child(1) { width: 88%; }
.page-products .prod-screen__bar:nth-child(2) { width: 64%; }
.page-products .prod-screen__bar:nth-child(3) { width: 76%; }
.page-products .prod-screen__bar:nth-child(4) { width: 48%; }

.page-products .prod-screen--phone .prod-screen__bar {
  height: 8px;
}

.page-products .prod-spec {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-products .prod-spec li {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 7px;
  border-bottom: 1px dashed var(--ky-line-soft);
  font-size: 13.5px;
  color: var(--ky-mist);
}

.page-products .prod-spec b {
  font-family: var(--ky-font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--ky-white);
  text-align: right;
}

/* ---------- 步骤 ---------- */
.page-products .prod-steps {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .prod-steps__item {
  position: relative;
  padding: 0 0 26px 46px;
}

.page-products .prod-steps__item::after {
  content: "";
  position: absolute;
  left: 15px;
  top: 36px;
  bottom: 0;
  width: 1px;
  background: var(--ky-line);
}

.page-products .prod-steps__item:last-child {
  padding-bottom: 0;
}

.page-products .prod-steps__item:last-child::after {
  display: none;
}

.page-products .prod-steps__num {
  position: absolute;
  left: 0;
  top: 0;
  display: grid;
  place-items: center;
  width: var(--prod-node-size);
  height: var(--prod-node-size);
  border-radius: 50%;
  background: var(--ky-cyan);
  color: var(--ky-ink);
  font-family: var(--ky-font-mono);
  font-size: 12px;
  font-weight: 600;
}

.page-products .prod-steps__item p {
  margin: 10px 0 0;
  max-width: 44ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ky-mist);
}

/* ---------- 组合 ---------- */
.page-products .prod-combos {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 16px;
}

.page-products .prod-combo {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 18px;
  border: 1px solid var(--ky-line-soft);
  border-radius: var(--ky-radius);
  background: var(--ky-glass);
  transition: border-color 0.28s var(--ky-ease), background 0.28s var(--ky-ease);
}

.page-products .prod-combo:hover {
  border-color: var(--ky-cyan);
  background: var(--ky-panel);
}

.page-products .prod-combo p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ky-mist);
}

.page-products .prod-combo__path {
  margin-top: auto !important;
  padding-top: 10px;
  border-top: 1px dashed var(--ky-line-soft);
  font-size: 13px;
  color: var(--ky-mist);
}

.page-products .prod-combo .ky-tag {
  align-self: flex-start;
}

/* ---------- 结尾 ---------- */
.page-products .prod-cta {
  padding-bottom: 64px;
}

.page-products .prod-cta__panel {
  padding: 28px 22px;
  border: 1px solid var(--ky-line);
  border-radius: var(--ky-radius);
  background: linear-gradient(150deg, rgba(47, 240, 206, 0.1), rgba(6, 23, 19, 0.2) 55%), var(--ky-panel);
}

.page-products .prod-cta__text {
  max-width: 46ch;
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ky-mist);
}

.page-products .prod-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products .prod-hero {
    padding-top: 52px;
  }

  .page-products .prod-steps__item,
  .page-products .prod-tree__item {
    padding-left: 56px;
  }

  .page-products .prod-tree::before {
    left: 15px;
  }
}

@media (min-width: 760px) {
  .page-products .prod-devices {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .page-products .prod-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.86fr);
    gap: 32px;
  }

  .page-products .prod-figure--side {
    margin-top: 16px;
  }

  .page-products .prod-figure--mid {
    max-width: 78%;
  }
}

@media (min-width: 960px) {
  .page-products .prod-body {
    grid-template-columns: 196px minmax(0, 1fr);
    gap: 56px;
    padding-top: 28px;
  }

  .page-products .prod-axis {
    position: sticky;
    top: 96px;
    align-self: start;
  }

  .page-products .prod-axis .ky-axis__list {
    flex-direction: column;
    gap: 2px;
  }

  .page-products .prod-axis .ky-axis__link {
    padding: 6px 0;
    border: none;
    border-bottom: 1px solid var(--ky-line-soft);
    border-radius: 0;
  }

  .page-products .prod-stream > .ky-section {
    padding: 52px 0;
  }

  .page-products .prod-cta__panel {
    padding: 40px 36px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}