.page-products {
  --pd-gap: clamp(16px, 3.2vw, 30px);
  --pd-card-shadow: 0 1px 2px rgba(27, 20, 16, .07);
  padding-bottom: clamp(40px, 8vw, 96px);
  overflow-wrap: break-word;
}

/* ---------- 面包屑 ---------- */
.page-products .breadcrumbs {
  padding-top: clamp(14px, 3vw, 26px);
}
.page-products .breadcrumbs ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  font-family: var(--font-meta);
  font-size: 12px;
  color: var(--muted);
}
.page-products .breadcrumbs li {
  display: flex;
  align-items: center;
}
.page-products .breadcrumbs li:not(:first-child)::before {
  content: "/";
  margin: 0 6px;
  color: var(--line-strong);
}
.page-products .breadcrumbs a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}
.page-products .breadcrumbs a:hover {
  color: var(--purple);
  border-bottom-color: var(--purple);
}

/* ---------- 首屏 ---------- */
.page-products .pd-hero {
  padding: clamp(18px, 4vw, 40px) 0 clamp(26px, 5vw, 52px);
}
.page-products .pd-hero h1 {
  margin: 12px 0 0;
  font-size: clamp(1.85rem, 7.4vw, 3.8rem);
  line-height: 1.05;
  letter-spacing: -.022em;
  font-weight: 900;
  max-width: 20ch;
}
.page-products .pd-hero .lede {
  margin-top: clamp(14px, 2.6vw, 22px);
  max-width: 40ch;
}
.page-products .pd-hero-facts {
  list-style: none;
  margin: clamp(20px, 4vw, 34px) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.page-products .pd-hero-facts li {
  flex: 1 1 120px;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px 16px 14px;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  box-shadow: var(--pd-card-shadow);
}
.page-products .pd-hero-facts .stat-num {
  font-size: clamp(1.45rem, 5vw, 2rem);
  line-height: 1;
  font-weight: 900;
  font-variant-numeric: tabular-nums;
}
.page-products .pd-hero-facts .stat-label {
  font-family: var(--font-meta);
  font-size: 12px;
  color: var(--muted);
}

/* ---------- 通用分节 ---------- */
.page-products .pd-section {
  padding: clamp(26px, 5.6vw, 60px) 0;
}
.page-products .section-head {
  margin-bottom: clamp(18px, 3.4vw, 28px);
}
.page-products .section-head .lede {
  max-width: 44ch;
}
.page-products .pd-section p a {
  color: var(--purple);
  text-decoration: none;
  border-bottom: 1px solid rgba(109, 63, 168, .35);
  transition: border-color 180ms var(--ease);
}
.page-products .pd-section p a:hover {
  border-bottom-color: var(--purple);
}

/* ---------- 品类索引 ---------- */
.page-products .pd-filterbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(16px, 3vw, 24px);
}
.page-products .pd-filterbar .tag {
  appearance: none;
  cursor: pointer;
  font-family: var(--font-meta);
  font-size: 12px;
  letter-spacing: .04em;
  padding: 7px 15px;
  border-radius: var(--pill);
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--ink);
  transition: background 180ms var(--ease), color 180ms var(--ease), border-color 180ms var(--ease);
}
.page-products .pd-filterbar .tag:hover {
  border-color: var(--purple);
  color: var(--purple);
}
.page-products .pd-filterbar .tag[aria-pressed="true"] {
  background: var(--purple-deep);
  border-color: var(--purple-deep);
  color: var(--paper-2);
}
.page-products .pd-filterbar .tag:focus-visible {
  outline: 2px solid var(--purple);
  outline-offset: 2px;
}

.page-products .pd-cats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
.page-products .pd-cat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 16px 18px;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  box-shadow: var(--pd-card-shadow);
  transition: transform 180ms var(--ease), border-color 180ms var(--ease), box-shadow 180ms var(--ease);
}
.page-products .pd-cat:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-2);
}
.page-products .pd-cat .tag {
  align-self: flex-start;
}
.page-products .pd-cat-name {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: -.01em;
}
.page-products .pd-cat-meta {
  margin: 0;
  font-family: var(--font-meta);
  font-size: 12px;
  color: var(--muted);
}
.page-products .pd-cat-desc {
  margin: 2px 0 0;
  font-size: 14px;
  line-height: 1.7;
}

@media (min-width: 620px) {
  .page-products .pd-cats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }
}
@media (min-width: 900px) {
  .page-products .pd-cats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    grid-auto-flow: dense;
    gap: 16px;
  }
  .page-products .pd-cat:nth-child(6n+1) {
    grid-column: span 2;
  }
}

/* ---------- 算分面板 ---------- */
.page-products .pd-score {
  display: grid;
  gap: 20px;
}
.page-products .pd-score-media,
.page-products .pd-host-media,
.page-products .pd-arch-media,
.page-products .pd-ver-media,
.page-products .pd-drill-media {
  margin: 0;
}
.page-products .pd-score-media img,
.page-products .pd-host-media img,
.page-products .pd-arch-media img,
.page-products .pd-ver-media img,
.page-products .pd-drill-media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: var(--radius-card);
}
.page-products .pd-score-panel {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  box-shadow: var(--pd-card-shadow);
  padding: clamp(18px, 3.4vw, 28px);
}
.page-products .pd-score-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.page-products .pd-score-tag {
  font-family: var(--font-meta);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--paper-2);
  background: var(--green);
  padding: 4px 10px;
  border-radius: var(--pill);
}
.page-products .pd-score-round {
  font-family: var(--font-meta);
  font-size: 12px;
  color: var(--muted);
}
.page-products .pd-score-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-top: 16px;
}
.page-products .pd-score-k {
  font-family: var(--font-meta);
  font-size: 12.5px;
  letter-spacing: .05em;
  color: var(--muted);
}
.page-products .pd-score-v {
  font-size: clamp(1.5rem, 5.2vw, 2.2rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -.02em;
  font-variant-numeric: tabular-nums;
}
.page-products .pd-bar {
  height: 8px;
  margin-top: 10px;
  border-radius: var(--pill);
  background: rgba(27, 20, 16, .08);
  overflow: hidden;
}
.page-products .pd-bar > span {
  display: block;
  height: 100%;
  border-radius: var(--pill);
  background: linear-gradient(90deg, var(--purple), var(--gold));
}
.page-products .pd-w-62 { width: 62%; }
.page-products .pd-w-78 { width: 78%; }

.page-products .pd-ticks {
  display: grid;
  grid-template-columns: repeat(10, minmax(0, 1fr));
  gap: 5px;
  margin-top: 16px;
}
.page-products .pd-ticks i {
  display: block;
  height: 20px;
  border-radius: 4px;
  border: 1px solid var(--line);
  background: rgba(27, 20, 16, .05);
}
.page-products .pd-ticks i.is-on {
  background: var(--purple-deep);
  border-color: var(--purple-deep);
}
.page-products .pd-score-note {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--ink-soft);
}
@media (min-width: 780px) {
  .page-products .pd-score {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 1fr);
    align-items: start;
    gap: 28px;
  }
  .page-products .pd-score-panel {
    margin-top: 32px;
  }
}

/* ---------- 固定练一种 ---------- */
.page-products .pd-split {
  display: grid;
  gap: clamp(20px, 4vw, 34px);
  align-items: center;
}
.page-products .pd-split-body p {
  font-size: 15.5px;
  line-height: 1.78;
}
.page-products .pd-points {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-products .pd-points li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.74;
}
.page-products .pd-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .64em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gold);
}
.page-products .pd-points strong {
  font-weight: 800;
  color: var(--purple-deep);
}
@media (min-width: 780px) {
  .page-products .pd-split {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: 34px;
  }
  .page-products .pd-drill-media {
    margin-top: 12px;
  }
}

/* ---------- 好友局 ---------- */
.page-products .pd-host {
  position: relative;
  overflow: hidden;
  padding: clamp(22px, 4.6vw, 40px);
  border-radius: var(--radius-card);
}
.page-products .pd-host::after {
  content: "";
  position: absolute;
  right: -70px;
  bottom: -90px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(53, 224, 208, .2), transparent 68%);
  pointer-events: none;
}
.page-products .pd-host-head {
  position: relative;
  z-index: 1;
  max-width: 46ch;
}
.page-products .pd-host-head h2 {
  color: var(--paper-2);
}
.page-products .pd-host-head p {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(246, 241, 228, .82);
}
.page-products .pd-steps {
  position: relative;
  z-index: 1;
  list-style: none;
  margin: clamp(20px, 4vw, 32px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-products .pd-steps li {
  padding: 14px 16px 16px;
  border: 1px solid rgba(246, 241, 228, .2);
  border-radius: var(--radius-card);
  background: rgba(246, 241, 228, .05);
  transition: border-color 180ms var(--ease), background 180ms var(--ease);
}
.page-products .pd-steps li:hover {
  border-color: rgba(53, 224, 208, .5);
  background: rgba(246, 241, 228, .08);
}
.page-products .pd-step-n {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-meta);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--neon);
}
.page-products .pd-steps h3 {
  margin: 0 0 6px;
  font-size: 1rem;
  font-weight: 800;
  color: var(--paper-2);
}
.page-products .pd-steps p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(246, 241, 228, .78);
}
.page-products .pd-host-media {
  position: relative;
  z-index: 1;
  margin-top: clamp(20px, 4vw, 32px);
}
@media (min-width: 640px) {
  .page-products .pd-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 残局练习 ---------- */
.page-products .pd-arch-layout {
  display: grid;
  gap: clamp(20px, 4vw, 30px);
}
.page-products .pd-arch-list {
  display: grid;
  gap: 12px;
}
.page-products .pd-arch {
  padding: 0;
  overflow: hidden;
  transition: transform 180ms var(--ease), border-color 180ms var(--ease), box-shadow 180ms var(--ease);
}
.page-products .pd-arch:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
}
.page-products .pd-arch-h {
  margin: 0;
}
.page-products .pd-arch-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 18px;
  background: none;
  border: 0;
  cursor: pointer;
  font: inherit;
  font-size: 1rem;
  font-weight: 800;
  text-align: left;
  color: var(--ink);
  transition: color 180ms var(--ease);
}
.page-products .pd-arch-btn::after {
  content: "+";
  font-family: var(--font-meta);
  font-size: 18px;
  line-height: 1;
  color: var(--purple);
  transition: transform 180ms var(--ease);
}
.page-products .pd-arch-btn[aria-expanded="true"]::after {
  transform: rotate(45deg);
}
.page-products .pd-arch-btn:hover {
  color: var(--purple);
}
.page-products .pd-arch-btn:focus-visible {
  outline: 2px solid var(--purple);
  outline-offset: -2px;
}
.page-products .pd-arch-body {
  padding: 0 18px 18px;
}
.page-products .pd-arch-body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-soft);
}
@media (min-width: 780px) {
  .page-products .pd-arch-layout {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }
  .page-products .pd-arch-media {
    position: sticky;
    top: calc(var(--header-h) + 20px);
  }
}

/* ---------- 版本演进 ---------- */
.page-products .pd-ver-media {
  margin-bottom: clamp(18px, 3.4vw, 28px);
}
.page-products .pd-versions {
  list-style: none;
  margin: 0;
  padding: 4px 4px 18px;
  display: flex;
  gap: 14px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}
.page-products .pd-ver {
  flex: 0 0 auto;
  width: min(78%, 286px);
  scroll-snap-align: start;
  padding: 18px 18px 20px;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  box-shadow: var(--pd-card-shadow);
  transition: transform 180ms var(--ease), border-color 180ms var(--ease), box-shadow 180ms var(--ease);
}
.page-products .pd-ver:hover {
  transform: translateY(-2px);
  border-color: var(--purple);
  box-shadow: var(--shadow-2);
}
.page-products .pd-ver-dot {
  display: block;
  width: 9px;
  height: 9px;
  margin-bottom: 12px;
  border-radius: 50%;
  background: var(--paper);
  border: 1.5px solid var(--gold);
  transition: background 180ms var(--ease), border-color 180ms var(--ease), box-shadow 180ms var(--ease);
}
.page-products .pd-ver:hover .pd-ver-dot {
  background: var(--purple);
  border-color: var(--purple);
  box-shadow: 0 0 0 4px rgba(109, 63, 168, .16);
}
.page-products .pd-ver-num {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-meta);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}
.page-products .pd-ver h3 {
  margin: 0 0 8px;
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: -.01em;
}
.page-products .pd-ver p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* ---------- 设备与适配 ---------- */
.page-products .pd-dev-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}
.page-products .pd-dev-list li {
  padding-top: 16px;
  border-top: 2px solid var(--purple-deep);
}
.page-products .pd-dev-list li:nth-child(2) {
  border-top-color: var(--green);
}
.page-products .pd-dev-list li:nth-child(3) {
  border-top-color: var(--gold);
}
.page-products .pd-dev-list h3 {
  margin: 0 0 6px;
  font-size: 1rem;
  font-weight: 800;
}
.page-products .pd-dev-list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--ink-soft);
}
@media (min-width: 700px) {
  .page-products .pd-dev-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }
}

/* ---------- 收尾 ---------- */
.page-products .pd-cta {
  margin-top: clamp(26px, 5vw, 44px);
  padding: clamp(20px, 4.4vw, 32px);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-card);
  background: linear-gradient(135deg, rgba(59, 31, 82, .06), rgba(224, 169, 75, .1));
}
.page-products .pd-cta p {
  margin: 0 0 18px;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.78;
}
.page-products .pd-cta .btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 窄屏收口 ---------- */
@media (max-width: 360px) {
  .page-products .pd-hero h1 {
    font-size: 1.72rem;
  }
  .page-products .pd-ticks {
    gap: 3px;
  }
  .page-products .pd-ver {
    width: 84%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pd-cat,
  .page-products .pd-arch,
  .page-products .pd-ver,
  .page-products .pd-filterbar .tag,
  .page-products .pd-arch-btn::after {
    transition: none;
  }
  .page-products .pd-cat:hover,
  .page-products .pd-arch:hover,
  .page-products .pd-ver:hover {
    transform: none;
  }
}