.page-products {
  --pp-gap: clamp(1.5rem, 3.5vw, 2.75rem);
  --pp-radius: 20px;
  --pp-pad: clamp(1.15rem, 2.6vw, 1.9rem);
  padding-bottom: clamp(3rem, 8vw, 6rem);
}

.page-products .breadcrumbs {
  padding-top: 5.5rem;
}

.page-products .pp-pad {
  padding: var(--pp-pad);
}

/* ---------- 首屏 ---------- */
.page-products .pp-hero {
  display: grid;
  gap: var(--pp-gap);
  padding-top: 1.25rem;
  align-items: start;
}

.page-products .pp-hero__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.4rem, 8vw, 4.4rem);
  line-height: 1.03;
  letter-spacing: -0.01em;
  margin: 0.7rem 0 0;
  color: var(--white);
}

.page-products .pp-hero__title-mark {
  display: block;
  color: var(--lime);
}

.page-products .pp-hero__lede {
  margin: 1.2rem 0 0;
  max-width: 46ch;
  color: var(--white-78);
  font-size: 1rem;
  line-height: 1.85;
}

.page-products .pp-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.5rem;
}

.page-products .pp-index {
  display: grid;
  gap: 0;
  margin-top: 1.9rem;
  border-top: 1px solid var(--line);
}

.page-products .pp-index__item {
  display: flex;
  align-items: baseline;
  gap: 0.9rem;
  padding: 0.62rem 0.15rem;
  border-bottom: 1px solid var(--line);
  color: var(--white-78);
  text-decoration: none;
  font-size: 0.92rem;
  transition: color 0.2s ease, padding-left 0.2s ease, border-color 0.2s ease;
}

.page-products .pp-index__num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-products .pp-index__item:hover,
.page-products .pp-index__item:focus-visible {
  color: var(--white);
  padding-left: 0.5rem;
  border-color: var(--line-strong);
}

.page-products .pp-index__item:hover .pp-index__num,
.page-products .pp-index__item:focus-visible .pp-index__num {
  color: var(--lime);
}

.page-products .pp-hero__media {
  --frame-ratio: 16 / 9;
}

/* ---------- 通用图片 ---------- */
.page-products .media-frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  max-width: 100%;
}

/* ---------- 章节头 ---------- */
.page-products .pp-head {
  max-width: 62ch;
}

.page-products .pp-head .section-title {
  margin: 0.55rem 0 0;
}

.page-products .pp-head .section-lede {
  margin-top: 0.9rem;
}

/* ---------- 功能矩阵 ---------- */
.page-products .pp-matrix {
  display: grid;
  gap: 0.85rem;
  margin-top: clamp(1.75rem, 4vw, 2.75rem);
}

.page-products .pp-cell {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  padding: var(--pp-pad);
  border-radius: var(--pp-radius);
  border: 1px solid var(--line);
  background: var(--ink-2);
  color: var(--white);
  text-decoration: none;
  overflow: hidden;
  transition: border-color 0.25s ease, transform 0.25s ease, background 0.25s ease;
}

.page-products .pp-cell::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 3px;
  background: var(--steel);
  opacity: 0.5;
}

.page-products .pp-cell--a::before { background: var(--lime); opacity: 1; }
.page-products .pp-cell--b::before { background: var(--gold); opacity: 1; }
.page-products .pp-cell--c::before { background: var(--glass); opacity: 0.7; }
.page-products .pp-cell--d::before { background: var(--orange); opacity: 0.85; }

.page-products .pp-cell:hover,
.page-products .pp-cell:focus-visible {
  border-color: var(--line-strong);
  transform: translateY(-3px);
  background: var(--pine);
}

.page-products .pp-cell__num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-products .pp-cell__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.35rem, 3.4vw, 1.85rem);
  line-height: 1.15;
  margin: 0;
  color: var(--white);
}

.page-products .pp-cell__text {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--white-78);
}

.page-products .pp-cell__go {
  margin-top: auto;
  padding-top: 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  color: var(--lime);
}

.page-products .pp-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.2rem;
}

.page-products .pp-chips span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.26rem 0.62rem;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  color: var(--mist);
}

.page-products .pp-chips span.is-active {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--ink);
}

.page-products .pp-mini-steps {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--mist);
}

.page-products .pp-mini-steps span {
  padding: 0.2rem 0.45rem;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
}

.page-products .pp-mini-steps i {
  font-style: normal;
  color: var(--lime);
}

/* ---------- 通用图文分栏 ---------- */
.page-products .pp-feature {
  display: grid;
  gap: var(--pp-gap);
  align-items: start;
}

.page-products .pp-feature__body .section-title {
  margin: 0.55rem 0 0;
  font-size: clamp(1.7rem, 4.4vw, 2.6rem);
}

.page-products .pp-feature__text {
  margin: 1.05rem 0 0;
  max-width: 56ch;
  color: var(--white-78);
  font-size: 0.97rem;
  line-height: 1.85;
}

.page-products .pp-feature__media {
  --frame-ratio: 3 / 2;
}

.page-products .pp-feature__media--lite {
  --frame-ratio: 10 / 7;
}

.page-products .pp-ways {
  list-style: none;
  margin: 1.6rem 0 1.6rem;
  padding: 0;
}

.page-products .pp-ways li {
  display: grid;
  grid-template-columns: 4.6rem 1fr;
  gap: 1rem;
  padding: 0.85rem 0;
  border-top: 1px solid var(--line);
  font-size: 0.93rem;
  line-height: 1.75;
  color: var(--white-78);
}

.page-products .pp-ways li:last-child {
  border-bottom: 1px solid var(--line);
}

.page-products .pp-ways__key {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: var(--lime);
}

.page-products .pp-notes {
  list-style: none;
  margin: 1.35rem 0 1.6rem;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.page-products .pp-notes li {
  position: relative;
  padding-left: 1.15rem;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--white-78);
}

.page-products .pp-notes li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62rem;
  width: 6px;
  height: 6px;
  border-radius: 2px;
  background: var(--lime);
}

/* ---------- 收藏回看 ---------- */
.page-products .pp-collection {
  display: grid;
  gap: var(--pp-gap);
  align-items: start;
}

.page-products .pp-collection__body .section-title {
  margin: 0.55rem 0 0;
  font-size: clamp(1.7rem, 4.4vw, 2.6rem);
}

.page-products .pp-collection__panel {
  border-radius: var(--pp-radius);
  border: 1px solid var(--glass-line);
  background: var(--glass-bg);
  backdrop-filter: blur(14px);
}

.page-products .pp-collection__panel .label {
  margin: 0 0 0.9rem;
  color: var(--gold);
}

.page-products .pp-clips {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}

.page-products .pp-clip {
  display: grid;
  grid-template-columns: 3.4rem 1fr;
  gap: 0.35rem 0.75rem;
  align-items: start;
  padding: 0.7rem 0.75rem;
  border-radius: var(--radius-sm);
  background: rgba(11, 15, 14, 0.55);
  border: 1px solid var(--line);
}

.page-products .pp-clip__time {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.page-products .pp-clip__body {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-width: 0;
}

.page-products .pp-clip__body strong {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--white);
  line-height: 1.5;
}

.page-products .pp-clip__meta {
  font-size: 0.78rem;
  color: var(--mist);
}

.page-products .pp-clip .tag {
  grid-column: 2;
  justify-self: start;
}

.page-products .pp-collection__media {
  --frame-ratio: 4 / 5;
  margin-top: 1rem;
}

.page-products .pp-collection__media .media-frame__caption {
  font-size: 0.78rem;
}

/* ---------- PC 端步骤 ---------- */
.page-products .pp-steps {
  margin-top: clamp(1.6rem, 3.5vw, 2.4rem);
}

.page-products .pp-step {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--ink-2);
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.page-products .pp-step + .pp-step {
  margin-top: 0.7rem;
}

.page-products .pp-step[open] {
  border-color: var(--line-strong);
}

.page-products .pp-step__head {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 1rem 1.1rem;
  cursor: pointer;
  list-style: none;
}

.page-products .pp-step__head::-webkit-details-marker {
  display: none;
}

.page-products .pp-step__head::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--lime);
}

.page-products .pp-step[open] .pp-step__head::after {
  content: "−";
}

.page-products .pp-step__num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--lime);
  padding: 0.2rem 0.42rem;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
}

.page-products .pp-step__title {
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--white);
  line-height: 1.5;
}

.page-products .pp-step__body {
  padding: 0 1.1rem 1.15rem;
}

.page-products .pp-step__body p {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.85;
  color: var(--white-78);
  max-width: 68ch;
}

.page-products .pp-help__media {
  --frame-ratio: 7 / 4;
  margin-top: clamp(1.6rem, 3.5vw, 2.4rem);
}

/* ---------- 对照表 ---------- */
.page-products .pp-table-wrap {
  margin-top: clamp(1.5rem, 3.5vw, 2.2rem);
  overflow: auto;
  max-height: 24rem;
  border: 1px solid var(--line);
  border-radius: var(--pp-radius);
  background: var(--ink-2);
  -webkit-overflow-scrolling: touch;
}

.page-products .pp-table {
  width: 100%;
  min-width: 46rem;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.page-products .pp-table__caption {
  caption-side: top;
  text-align: left;
  padding: 0.85rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.05em;
  color: var(--mist);
  border-bottom: 1px solid var(--line);
}

.page-products .pp-table thead th {
  position: sticky;
  top: 0;
  z-index: 2;
  background: var(--pine);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--mist);
  text-align: left;
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--line-strong);
  white-space: nowrap;
}

.page-products .pp-table tbody th {
  text-align: left;
  padding: 0.95rem 1rem;
  font-weight: 600;
  color: var(--white);
  white-space: nowrap;
  border-bottom: 1px solid var(--line);
  border-left: 3px solid var(--lime);
}

.page-products .pp-table tbody td {
  padding: 0.95rem 1rem;
  color: var(--white-78);
  line-height: 1.7;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}

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

.page-products .pp-table__link {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 255, 61, 0.4);
}

.page-products .pp-table__link:hover,
.page-products .pp-table__link:focus-visible {
  border-bottom-color: var(--lime);
}

.page-products .pp-note {
  margin: 1rem 0 0;
  font-size: 0.85rem;
  line-height: 1.8;
  color: var(--mist);
  max-width: 70ch;
}

.page-products .pp-note__link {
  margin-left: 0.5rem;
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 255, 61, 0.4);
}

/* ---------- 收尾 ---------- */
.page-products .pp-next {
  margin-top: clamp(2.5rem, 6vw, 4.5rem);
}

.page-products .pp-next__inner {
  border-radius: var(--pp-radius);
  background: var(--ink-2);
  border: 1px solid var(--line);
  display: grid;
  gap: 1.2rem;
}

.page-products .pp-next__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.6vw, 2.1rem);
  margin: 0.4rem 0 0;
  color: var(--white);
}

.page-products .pp-next__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-products .pp-next__links li {
  border-top: 1px solid var(--line);
}

.page-products .pp-next__links a {
  display: block;
  padding: 0.7rem 0;
  color: var(--white-78);
  text-decoration: none;
  font-size: 0.92rem;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.page-products .pp-next__links a:hover,
.page-products .pp-next__links a:focus-visible {
  color: var(--lime);
  padding-left: 0.4rem;
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-products .pp-matrix {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .pp-cell--a,
  .page-products .pp-cell--d {
    grid-column: span 1;
  }
  .page-products .pp-next__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
    align-items: center;
  }
}

@media (min-width: 900px) {
  .page-products .pp-matrix {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }
  .page-products .pp-cell--a { grid-column: span 7; }
  .page-products .pp-cell--b { grid-column: span 5; }
  .page-products .pp-cell--c { grid-column: span 5; }
  .page-products .pp-cell--d { grid-column: span 7; }

  .page-products .pp-feature,
  .page-products .pp-collection {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .page-products .pp-collection {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-products .pp-feature--lite {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: center;
  }
}

@media (min-width: 980px) {
  .page-products .pp-hero {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: end;
  }
  .page-products .pp-hero__side {
    padding-bottom: 0.5rem;
  }
  .page-products .pp-index {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 1.5rem;
  }
  .page-products .pp-collection__body {
    position: sticky;
    top: 6rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pp-cell,
  .page-products .pp-index__item,
  .page-products .pp-next__links a {
    transition: none;
  }
  .page-products .pp-cell:hover,
  .page-products .pp-cell:focus-visible {
    transform: none;
  }
}