.page-products {
  --p-side: 300px;
  --p-num: clamp(1.35rem, 2.4vw, 1.6rem);
}

.page-products .prod-opener {
  padding-block: clamp(1.25rem, 3.5vw, 2.25rem) clamp(1.75rem, 4vw, 2.75rem);
  border-bottom: 1px solid var(--rule);
}

.page-products .prod-opener h1 {
  margin: 0.6rem 0 1rem;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(2rem, 5.2vw, 3.4rem);
  line-height: 1.06;
  letter-spacing: -0.025em;
  color: var(--ink);
  max-width: 20ch;
}

.page-products .prod-opener .lede {
  margin: 0;
  max-width: 42ch;
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--warm);
}

.page-products .prod-metrics {
  list-style: none;
  margin: clamp(1.5rem, 3vw, 2.25rem) 0 0;
  padding: 1.05rem 0 0;
  border-top: 1px solid var(--rule);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem 1.25rem;
}

.page-products .prod-metrics__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--blue);
  line-height: 1.2;
}

.page-products .prod-metrics__label {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.8rem;
  color: var(--warm);
}

.page-products .prod-section {
  padding-block: clamp(2rem, 4.5vw, 3.25rem);
  border-bottom: 1px solid var(--rule);
}

.page-products .prod-head {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  margin-bottom: 0.9rem;
}

.page-products .prod-head h2 {
  margin: 0;
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-products .prod-section .prose {
  max-width: 60ch;
}

.page-products .prod-section p {
  line-height: 1.75;
}

.page-products .prod-section img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--rule);
  background: var(--mist);
  object-fit: cover;
}

.page-products .prod-section figure {
  margin: clamp(1.25rem, 3vw, 1.9rem) 0;
}

/* 资源分类 */
.page-products .prod-cats {
  list-style: none;
  margin: clamp(1.25rem, 3vw, 1.9rem) 0 0;
  padding: 0;
  display: grid;
  gap: 0.85rem;
  grid-template-columns: minmax(0, 1fr);
}

.page-products .prod-cats__item {
  padding: 1rem 1.05rem;
  border: 1px solid var(--rule);
  border-left: 3px solid var(--blue);
  border-radius: 10px;
  background: var(--glass);
  transition: transform 180ms var(--ease), border-color 180ms var(--ease);
}

.page-products .prod-cats__item:hover {
  transform: translateY(-2px);
  border-color: var(--deep);
  border-left-color: var(--orange);
}

.page-products .prod-cats__item h3 {
  margin: 0 0 0.35rem;
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--ink);
}

.page-products .prod-cats__item p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--warm);
}

.page-products .prod-cats__fmt {
  display: inline-block;
  margin-top: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--deep);
}

.page-products .marginnote {
  margin-top: 1.25rem;
  padding-left: 0.85rem;
  border-left: 2px solid var(--blue);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.85;
  color: var(--warm);
}

/* 两栏：主列 + 版本说明卡 */
.page-products .prod-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.5rem;
}

.page-products .prod-main {
  min-width: 0;
}

.page-products .prod-main .prod-section:last-child {
  border-bottom: 0;
  padding-bottom: clamp(1.5rem, 3vw, 2rem);
}

.page-products .prod-side {
  background: var(--mist);
  border-radius: var(--radius);
  padding: 0.9rem;
}

.page-products .versioncard {
  background: var(--glass);
  border: 1px solid var(--blue);
  border-radius: calc(var(--radius) - 4px);
  padding: 1.15rem 1.1rem 1.25rem;
  backdrop-filter: blur(8px);
}

.page-products .versioncard__kicker {
  margin: 0 0 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--orange-ink);
}

.page-products .versioncard__title {
  margin: 0;
  font-size: 1.12rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-products .versioncard__price {
  margin: 0.55rem 0 0.5rem;
  font-family: var(--font-mono);
  font-size: 3rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.035em;
  color: var(--blue);
}

.page-products .versioncard__price span {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0;
  color: var(--warm);
}

.page-products .versioncard__desc {
  margin: 0 0 0.75rem;
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--warm);
}

.page-products .versioncard__rows {
  margin: 0 0 0.85rem;
  padding: 0.6rem 0 0;
  border-top: 1px solid var(--rule);
}

.page-products .versioncard__rows div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.32rem 0;
}

.page-products .versioncard__rows dt {
  font-size: 0.86rem;
  color: var(--warm);
}

.page-products .versioncard__rows dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.94rem;
  font-weight: 700;
  color: var(--ink);
}

.page-products .versioncard__meta {
  margin: 0 0 0.9rem;
  padding-top: 0.7rem;
  border-top: 1px solid var(--rule);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  line-height: 1.7;
  color: var(--deep);
}

.page-products .versioncard__btn {
  display: block;
  width: 100%;
  text-align: center;
  margin-top: 0.5rem;
}

/* 费用表 */
.page-products .prod-tablewrap {
  margin-top: clamp(1.1rem, 2.5vw, 1.6rem);
  overflow-x: auto;
  border: 1px solid var(--rule);
  border-radius: 12px;
  background: var(--glass);
}

.page-products .prod-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.page-products .prod-table thead th {
  padding: 0.8rem 0.85rem;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  line-height: 1.5;
  color: var(--deep);
  background: var(--mist);
  border-bottom: 1px solid var(--rule);
  white-space: nowrap;
}

.page-products .prod-table tbody th,
.page-products .prod-table tbody td {
  padding: 0.9rem 0.85rem;
  text-align: left;
  border-bottom: 1px solid var(--rule);
  color: var(--ink);
  line-height: 1.6;
  vertical-align: middle;
}

.page-products .prod-table tbody tr:nth-child(even) {
  background: rgba(220, 228, 238, 0.35);
}

.page-products .prod-table tbody tr {
  transition: background-color 180ms var(--ease);
}

.page-products .prod-table tbody tr:hover {
  background: rgba(0, 87, 184, 0.08);
}

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

.page-products .prod-table tbody th {
  font-weight: 700;
  white-space: nowrap;
}

.page-products .prod-table .num {
  font-family: var(--font-mono);
  font-weight: 600;
  white-space: nowrap;
  font-size: 0.94rem;
}

.page-products .prod-table tr.is-reco {
  box-shadow: inset 3px 0 0 var(--orange);
  background: rgba(255, 107, 53, 0.07);
}

.page-products .prod-table tr.is-reco:hover {
  background: rgba(255, 107, 53, 0.13);
}

.page-products .prod-table__tag {
  display: inline-block;
  margin-left: 0.4rem;
  padding: 0.08rem 0.4rem;
  border-radius: 999px;
  background: var(--orange);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  vertical-align: middle;
}

.page-products .prod-note {
  margin: 0.75rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  line-height: 1.8;
  color: var(--warm);
}

/* 对号入座卡片 */
.page-products .prod-fits {
  list-style: none;
  margin: clamp(1.2rem, 2.8vw, 1.75rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.8rem;
}

.page-products .prod-fits h3 {
  margin: 0 0 0.4rem;
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--ink);
}

.page-products .prod-fits p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--warm);
}

/* 额度规则 */
.page-products .prod-rules {
  margin: clamp(1.2rem, 2.8vw, 1.75rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.9rem;
}

.page-products .prod-rules > div {
  padding: 0.9rem 1rem;
  border-radius: 10px;
  background: var(--glass);
  border: 1px solid var(--rule);
}

.page-products .prod-rules dt {
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--blue);
  margin-bottom: 0.3rem;
}

.page-products .prod-rules dd {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.72;
  color: var(--ink);
}

/* 折叠面板 */
.page-products .prod-accs {
  margin-top: clamp(1.2rem, 2.8vw, 1.75rem);
  border-top: 1px solid var(--rule);
}

.page-products .prod-acc {
  border-bottom: 1px solid var(--rule);
}

.page-products .prod-acc summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.95rem 0;
  font-weight: 700;
  font-size: 0.94rem;
  color: var(--ink);
  transition: color 180ms var(--ease);
}

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

.page-products .prod-acc summary:hover {
  color: var(--blue);
}

.page-products .prod-acc summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  line-height: 1;
  color: var(--orange-ink);
}

.page-products .prod-acc[open] summary::after {
  content: "–";
}

.page-products .prod-acc p {
  margin: 0;
  padding: 0 0 1rem;
  font-size: 0.9rem;
  line-height: 1.78;
  color: var(--warm);
  max-width: 58ch;
}

/* 版本对比 */
.page-products .prod-compare {
  margin-top: clamp(1.2rem, 2.8vw, 1.75rem);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.85rem;
}

.page-products .prod-compare__col {
  padding: 1rem 1.05rem;
  border-radius: 12px;
  border: 1px solid var(--rule);
  background: var(--glass);
}

.page-products .prod-compare__col--now {
  border-color: var(--blue);
  background: rgba(0, 87, 184, 0.07);
  box-shadow: inset 3px 0 0 var(--orange);
}

.page-products .prod-compare__col h3 {
  margin: 0 0 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--deep);
}

.page-products .prod-compare__col--now h3 {
  color: var(--blue);
}

.page-products .prod-compare__col ul {
  margin: 0;
  padding-left: 1.05rem;
}

.page-products .prod-compare__col li {
  font-size: 0.9rem;
  line-height: 1.72;
  color: var(--ink);
}

.page-products .prod-compare__col li + li {
  margin-top: 0.4rem;
}

/* 季度带 */
.page-products .prod-quarters {
  list-style: none;
  margin: clamp(1.2rem, 2.8vw, 1.75rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.75rem;
}

.page-products .prod-quarters li {
  padding: 0.9rem 1rem 1rem;
  border-radius: 10px;
  border: 1px solid var(--rule);
  border-top: 3px solid var(--deep);
  background: var(--glass);
}

.page-products .prod-quarters__item--now {
  border-top-color: var(--orange);
  background: rgba(255, 107, 53, 0.08);
}

.page-products .prod-quarters__q {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--blue);
}

.page-products .prod-quarters__item--now .prod-quarters__q {
  color: var(--orange-ink);
}

.page-products .prod-quarters__m {
  display: block;
  margin-top: 0.15rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--warm);
}

.page-products .prod-quarters p {
  margin: 0.55rem 0 0;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--ink);
}

/* 开通步骤 */
.page-products .prod-steps {
  list-style: none;
  margin: clamp(1.2rem, 2.8vw, 1.75rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.85rem;
  counter-reset: step;
}

.page-products .prod-steps li {
  position: relative;
  padding: 1rem 1.05rem;
  border-radius: 12px;
  border: 1px solid var(--rule);
  background: var(--glass);
  transition: transform 180ms var(--ease), border-color 180ms var(--ease);
}

.page-products .prod-steps li:hover {
  transform: translateY(-2px);
  border-color: var(--blue);
}

.page-products .prod-steps__num {
  display: inline-block;
  margin-bottom: 0.45rem;
  padding: 0.12rem 0.45rem;
  border-radius: 6px;
  background: var(--blue);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.page-products .prod-steps h3 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink);
}

.page-products .prod-steps p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--warm);
}

.page-products .prod-settle {
  margin-top: clamp(1.2rem, 2.8vw, 1.6rem);
  padding: 1.2rem 1.15rem 1.35rem;
  border-radius: var(--radius);
  background: var(--mist);
  border: 1px solid var(--rule);
}

.page-products .prod-settle h3 {
  margin: 0 0 0.6rem;
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--ink);
}

.page-products .prod-settle p {
  margin: 0 0 0.7rem;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--ink);
  max-width: 56ch;
}

.page-products .prod-settle .btn {
  margin-top: 0.35rem;
}

/* 延伸入口 */
.page-products .prod-more {
  padding-block: clamp(1.5rem, 3.5vw, 2.25rem);
}

.page-products .prod-more ul {
  list-style: none;
  margin: 0.6rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.55rem;
}

.page-products .prod-more a {
  display: block;
  padding: 0.75rem 0.95rem;
  border-radius: 10px;
  border: 1px solid var(--rule);
  color: var(--deep);
  text-decoration: none;
  font-size: 0.92rem;
  line-height: 1.6;
  transition: transform 180ms var(--ease), border-color 180ms var(--ease), background-color 180ms var(--ease);
}

.page-products .prod-more a:hover {
  transform: translateY(-2px);
  border-color: var(--blue);
  background: rgba(0, 87, 184, 0.06);
}

@media (min-width: 620px) {
  .page-products .prod-metrics {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

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

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

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

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

  .page-products .prod-more ul {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-products .prod-split {
    grid-template-columns: minmax(0, 1fr) var(--p-side);
    gap: clamp(1.75rem, 3.5vw, 3rem);
    align-items: start;
  }

  .page-products .prod-side {
    position: sticky;
    top: 1.75rem;
  }

  .page-products .prod-cats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .prod-fits {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .prod-quarters {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .prod-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .prod-cats__item,
  .page-products .prod-steps li,
  .page-products .prod-more a {
    transition: none;
  }

  .page-products .prod-cats__item:hover,
  .page-products .prod-steps li:hover,
  .page-products .prod-more a:hover {
    transform: none;
  }
}