.page-products {
  --pp-radius: 2px;
  background: var(--ink);
  color: var(--text);
  overflow-x: clip;
  display: block;
}

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

.page-products .proj-hero {
  position: relative;
  padding: calc(var(--hdr-h) + 40px) 0 44px;
  background:
    radial-gradient(95% 65% at 88% 0%, rgba(79, 240, 208, 0.10), transparent 62%),
    radial-gradient(70% 55% at 0% 100%, rgba(242, 160, 61, 0.06), transparent 72%),
    var(--ink);
  border-bottom: 1px solid var(--hair);
}

.page-products .proj-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-top: 26px;
}

.page-products .proj-hero h1 {
  margin: 14px 0 0;
  font-size: clamp(30px, 5.6vw, 54px);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-products .proj-lede {
  margin: 20px 0 0;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
}

.page-products .proj-hero-facts {
  list-style: none;
  margin: 28px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--hair);
  display: grid;
  gap: 10px;
}

.page-products .proj-hero-facts li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--warm);
}

.page-products .proj-hero-facts .mono {
  flex: 0 0 auto;
  min-width: 58px;
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-products .proj-hero-visual {
  position: relative;
  padding: 20px;
  border: 1px solid var(--hair);
  border-radius: var(--pp-radius);
  background: linear-gradient(180deg, rgba(23, 53, 43, 0.85), rgba(14, 21, 18, 0.92));
}

.page-products .proj-hero-svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-products .proj-visual-cap {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--hair);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.04em;
  color: var(--warm);
}

.page-products .proj-jump {
  margin-top: 36px;
  padding-top: 18px;
  border-top: 1px solid var(--hair);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}

.page-products .proj-jump a {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--warm);
  text-decoration: none;
  padding: 4px 0;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

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

.page-products .proj-sec {
  position: relative;
  padding-block: clamp(48px, 8vw, 96px);
  border-bottom: 1px solid var(--hair);
}

.page-products .proj-sec-head {
  max-width: 62ch;
  margin-bottom: clamp(28px, 5vw, 48px);
}

.page-products .proj-sec-head h2 {
  margin: 12px 0 0;
  font-size: clamp(24px, 3.6vw, 36px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-products .proj-sec-head p:not(.eyebrow) {
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
}

/* ---------- 签表 ---------- */

.page-products .proj-bracket-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: start;
}

.page-products .proj-stages {
  min-width: 0;
}

.page-products .stage {
  border-top: 1px solid var(--hair);
}

.page-products .stage:last-of-type {
  border-bottom: 1px solid var(--hair);
}

.page-products .stage-sum {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
}

.page-products .stage-sum::-webkit-details-marker {
  display: none;
}

.page-products .stage-idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--warm);
}

.page-products .stage-name {
  flex: 1 1 auto;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--white);
  transition: color var(--dur) var(--ease);
}

.page-products .stage-count {
  flex: 0 0 auto;
  font-size: 12px;
  color: var(--warm);
  text-align: right;
}

.page-products .stage-sum::after {
  flex: 0 0 auto;
  content: "+";
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--teal);
  transition: color var(--dur) var(--ease);
}

.page-products .stage[open] > .stage-sum::after {
  content: "–";
  color: var(--cyan);
}

.page-products .stage-sum:hover .stage-name {
  color: var(--cyan);
}

.page-products .stage-body {
  padding: 0 0 22px;
  max-width: 58ch;
}

.page-products .stage-body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
}

.page-products .stage-meta {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-products .stage-meta li {
  position: relative;
  padding-left: 14px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--warm);
}

.page-products .stage-meta li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  border-radius: 2px;
  background: var(--teal);
}

.page-products .proj-bracket-figure,
.page-products .proj-state-figure,
.page-products .proj-replay-figure,
.page-products .proj-android-figure,
.page-products .proj-rev-figure {
  margin: 0;
  min-width: 0;
}

.page-products .media-frame {
  overflow: hidden;
}

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

.page-products .media-frame--phone {
  aspect-ratio: 9 / 16;
}

.page-products .media-frame--5x3 {
  aspect-ratio: 5 / 3;
}

.page-products .figure-cap {
  margin: 12px 0 0;
  font-size: 12px;
  line-height: 1.7;
  color: var(--warm);
}

/* ---------- 节点三态 ---------- */

.page-products .proj-state-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: start;
}

.page-products .proj-state-copy h2 {
  margin: 12px 0 0;
  font-size: clamp(24px, 3.6vw, 34px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-products .proj-state-copy > p:not(.eyebrow) {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
}

.page-products .state-legend {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-products .state-item {
  display: grid;
  grid-template-columns: 12px 1fr;
  gap: 4px 14px;
  padding: 15px 16px;
  background: var(--panel);
  border-left: 2px solid var(--line);
  transition: background-color var(--dur) var(--ease);
}

.page-products .state-item:hover {
  background: #1B3D31;
}

.page-products .state-item--live {
  border-left-color: var(--cyan);
}

.page-products .state-item--pending {
  border-left-color: var(--warm);
}

.page-products .state-dot {
  grid-row: 1 / span 2;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  margin-top: 6px;
  background: var(--line);
}

.page-products .state-dot--done {
  background: var(--line);
}

.page-products .state-dot--live {
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(79, 240, 208, 0.14);
}

.page-products .state-dot--pending {
  background: var(--warm);
}

.page-products .state-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
}

.page-products .state-desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--warm);
}

.page-products .proj-dep-chain {
  margin-top: clamp(36px, 5vw, 56px);
  padding: 24px;
  border: 1px solid var(--hair);
  border-radius: var(--pp-radius);
  background: rgba(23, 53, 43, 0.5);
}

.page-products .proj-dep-chain h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  color: var(--white);
}

.page-products .proj-dep-chain > p {
  margin: 12px 0 0;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
}

.page-products .dep-flow {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 28px;
}

.page-products .dep-node {
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  background: var(--ink);
  border: 1px solid var(--hair-strong);
  border-radius: var(--pp-radius);
  color: var(--text);
}

.page-products .dep-node--done {
  border-color: var(--line);
  color: var(--white);
}

.page-products .dep-node--live {
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-products .dep-node--pending {
  border-color: var(--warm);
  border-style: dashed;
  color: var(--warm);
}

.page-products .dep-flow li + li {
  position: relative;
}

.page-products .dep-flow li + li::before {
  content: "→";
  position: absolute;
  left: -20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 12px;
  color: var(--teal);
}

/* ---------- 复盘 ---------- */

.page-products .proj-replay-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: start;
}

.page-products .proj-replay-copy h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  color: var(--white);
}

.page-products .proj-replay-copy > p {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
}

.page-products .replay-facts {
  margin: 24px 0 0;
  display: grid;
  gap: 1px;
  background: var(--hair);
  border: 1px solid var(--hair);
}

.page-products .replay-facts > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 14px;
  background: var(--panel);
}

.page-products .replay-facts dt {
  font-size: 13px;
  color: var(--warm);
}

.page-products .replay-facts dd {
  margin: 0;
  font-size: 14px;
  color: var(--white);
}

.page-products .replay-facts dd.mono {
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-products .timeline-zone {
  position: relative;
  margin-top: clamp(40px, 6vw, 64px);
  padding-top: 32px;
  border-top: 1px solid var(--hair-strong);
}

.page-products .density-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-products .density-switch {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 20px;
  margin-bottom: 20px;
}

.page-products .density-title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--warm);
}

.page-products .density-labels {
  display: inline-flex;
  border: 1px solid var(--hair-strong);
  border-radius: var(--pp-radius);
  overflow: hidden;
}

.page-products .density-labels label {
  padding: 8px 18px;
  font-size: 13px;
  color: var(--warm);
  cursor: pointer;
  border-right: 1px solid var(--hair);
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-products .density-labels label:last-child {
  border-right: 0;
}

.page-products .density-labels label:hover {
  color: var(--white);
}

.page-products #pp-density-compact:checked ~ .density-switch label[for="pp-density-compact"],
.page-products #pp-density-standard:checked ~ .density-switch label[for="pp-density-standard"],
.page-products #pp-density-wide:checked ~ .density-switch label[for="pp-density-wide"] {
  background: var(--teal);
  color: var(--white);
}

.page-products .density-radio:focus-visible ~ .density-switch .density-labels {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-products .slice-groups-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin-bottom: 24px;
}

.page-products .slice-groups-nav a {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--teal);
  text-decoration: none;
  padding: 4px 10px;
  border: 1px solid var(--hair-strong);
  border-radius: var(--pp-radius);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-products .slice-groups-nav a:hover,
.page-products .slice-groups-nav a:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
}

.page-products .timeline-slices {
  display: grid;
  gap: 36px;
}

.page-products .slice-group {
  border-top: 1px solid var(--hair-strong);
  padding-top: 20px;
}

.page-products .slice-group-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 14px;
}

.page-products .slice-group-head .mono {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--amber);
}

.page-products .slice-group-head h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
}

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

.page-products .slice {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 4px 14px;
  padding: 12px 14px;
  background: var(--ink);
  transition: background-color var(--dur) var(--ease), transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-products .slice-no {
  grid-row: 1 / span 2;
  padding-top: 2px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--teal);
  transition: color var(--dur) var(--ease);
}

.page-products .slice-title {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--white);
}

.page-products .slice-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--warm);
}

.page-products .slice:hover {
  background: var(--panel);
  transform: translateY(-2px);
  box-shadow: inset 2px 0 0 var(--cyan);
}

.page-products .slice:hover .slice-no {
  color: var(--cyan);
}

.page-products #pp-density-compact:checked ~ .timeline-slices .slice-note {
  display: none;
}

.page-products #pp-density-compact:checked ~ .timeline-slices .slice {
  padding: 8px 14px;
}

.page-products #pp-density-wide:checked ~ .timeline-slices .slice {
  padding: 18px 16px;
}

.page-products #pp-density-wide:checked ~ .timeline-slices .slice-title {
  font-size: 16px;
}

.page-products #pp-density-wide:checked ~ .timeline-slices .slice-note {
  font-size: 14px;
}

/* ---------- 安卓阅读 ---------- */

.page-products .proj-android-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
}

.page-products .proj-android-copy h2 {
  margin: 12px 0 0;
  font-size: clamp(24px, 3.6vw, 34px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-products .proj-android-copy > p:not(.eyebrow) {
  margin: 16px 0 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
}

.page-products .android-points {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-products .android-points li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text);
}

.page-products .android-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--teal);
}

.page-products .android-points strong {
  display: block;
  margin-bottom: 2px;
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
}

.page-products .read-scales {
  list-style: none;
  margin: 36px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--hair);
  border: 1px solid var(--hair);
}

.page-products .read-scale {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 6px 18px;
  align-items: center;
  padding: 16px;
  background: var(--panel);
}

.page-products .scale-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--white);
}

.page-products .scale-bars {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-products .scale-bars i {
  display: block;
  height: 2px;
  border-radius: 1px;
  background: var(--warm);
  opacity: 0.55;
}

.page-products .read-scale--compact .scale-bars {
  gap: 3px;
}

.page-products .read-scale--compact .scale-bars i {
  background: var(--cyan);
  opacity: 0.7;
}

.page-products .read-scale--wide .scale-bars {
  gap: 10px;
}

.page-products .read-scale--wide .scale-bars i {
  background: var(--amber);
  opacity: 0.6;
}

.page-products .scale-note {
  grid-column: 1 / -1;
  font-size: 13px;
  line-height: 1.7;
  color: var(--warm);
}

/* ---------- 校正版本 ---------- */

.page-products .proj-rev-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: start;
}

.page-products .proj-rev-copy h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  color: var(--white);
}

.page-products .proj-ver {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(22px, 4vw, 32px);
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-products .rev-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .rev-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text);
}

.page-products .rev-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  border-radius: 2px;
  background: var(--amber);
}

.page-products .rev-list strong {
  margin-right: 8px;
  color: var(--white);
}

.page-products .proj-rev-note {
  margin: 24px 0 0;
  padding: 14px 16px;
  border-left: 2px solid var(--amber);
  background: var(--panel);
  font-size: 14px;
  line-height: 1.75;
  color: var(--text);
}

/* ---------- 组合读法 ---------- */

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

.page-products .howto-step {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 20px;
  background: var(--ink);
  transition: background-color var(--dur) var(--ease);
}

.page-products .howto-step:hover {
  background: var(--panel);
}

.page-products .howto-idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.page-products .howto-step h3 {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-products .howto-step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text);
}

.page-products .proj-next {
  margin-top: 40px;
  padding: 28px 24px;
  border: 1px solid var(--hair-strong);
  border-radius: var(--pp-radius);
  background: linear-gradient(180deg, rgba(23, 53, 43, 0.7), rgba(14, 21, 18, 0.6));
  display: grid;
  gap: 20px;
}

.page-products .proj-next p {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
}

.page-products .proj-next-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-products .proj-foot-link {
  margin: 26px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--warm);
}

.page-products .proj-foot-link a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(79, 240, 208, 0.35);
  transition: border-color var(--dur) var(--ease);
}

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

/* ---------- 焦点 ---------- */

.page-products a:focus-visible,
.page-products summary:focus-visible,
.page-products label:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: var(--pp-radius);
}

/* ---------- 断点 ---------- */

@media (min-width: 720px) {
  .page-products .howto-step {
    grid-template-columns: 56px 210px 1fr;
    gap: 20px;
    align-items: baseline;
    padding: 22px 24px;
  }
}

@media (min-width: 900px) {
  .page-products .proj-hero-grid {
    grid-template-columns: 5fr 7fr;
    gap: 48px;
    align-items: start;
  }

  .page-products .proj-state-grid {
    grid-template-columns: 6fr 6fr;
    gap: 48px;
  }

  .page-products .proj-replay-grid {
    grid-template-columns: 5fr 7fr;
    gap: 48px;
  }

  .page-products .proj-android-grid {
    grid-template-columns: 7fr 5fr;
    gap: 48px;
  }

  .page-products .proj-rev-grid {
    grid-template-columns: 5fr 7fr;
    gap: 48px;
  }

  .page-products .read-scale {
    grid-template-columns: 64px 180px 1fr;
    gap: 18px;
  }

  .page-products .scale-note {
    grid-column: auto;
  }
}

@media (min-width: 960px) {
  .page-products .proj-bracket-grid {
    grid-template-columns: 7fr 5fr;
    gap: 48px;
  }

  .page-products .proj-bracket-figure {
    position: sticky;
    top: calc(var(--hdr-h) + 24px);
  }

  .page-products .proj-next {
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 36px;
    padding: 32px 36px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .slice,
  .page-products .stage-name,
  .page-products .stage-sum::after,
  .page-products .state-item,
  .page-products .howto-step,
  .page-products .proj-jump a,
  .page-products .slice-no,
  .page-products .density-labels label,
  .page-products .slice-groups-nav a {
    transition: none;
  }

  .page-products .slice:hover {
    transform: none;
  }
}