.page-products {
  --ex-gold: var(--df-gold-500);
  --ex-amber: var(--df-amber-400);
  --ex-line: var(--df-gold-line);
  --ex-hair: var(--df-hair);
  background: var(--df-ink-900);
  color: var(--df-ivory-050);
}

/* ---------- 首屏 ---------- */
.page-products .ex-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--ex-hair);
}
.page-products .ex-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(880px 420px at 80% -12%, rgba(198, 161, 91, 0.18), transparent 68%),
    linear-gradient(180deg, rgba(30, 23, 18, 0.7), transparent 62%);
}
.page-products .ex-hero .df-shell {
  position: relative;
  z-index: 1;
}
.page-products .ex-hero__grid {
  display: grid;
  gap: 30px;
  margin-top: 26px;
}
.page-products .ex-hero__lead .df-title-xl {
  margin: 14px 0 0;
}
.page-products .ex-hero__lead .df-lede {
  margin-top: 18px;
  max-width: 34em;
}
.page-products .ex-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}
.page-products .ex-hero__aside {
  border-top: 1px solid var(--ex-line);
  padding-top: 20px;
}
.page-products .ex-hero__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--df-ivory-mute);
  letter-spacing: 0.02em;
}
.page-products .ex-hero__meta {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--ex-hair);
  border: 1px solid var(--ex-hair);
}
.page-products .ex-hero__meta li {
  background: var(--df-ink-800);
  padding: 16px 12px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--df-gray-500);
  letter-spacing: 0.04em;
}
.page-products .ex-num {
  display: block;
  font-family: var(--df-font-num);
  font-variant-numeric: tabular-nums;
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  color: var(--ex-amber);
  margin-bottom: 8px;
}

/* ---------- 通用区块头 ---------- */
.page-products .ex-head {
  max-width: 44em;
  margin-bottom: 30px;
}
.page-products .ex-head .df-title-lg {
  margin: 12px 0 0;
}
.page-products .ex-head__lede {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.85;
  letter-spacing: 0.02em;
  color: var(--df-ivory-mute);
}

/* ---------- 路径树 ---------- */
.page-products .ex-paths__grid {
  align-items: start;
}
.page-products .ex-tree {
  list-style: none;
  margin: 0;
  padding: 0 0 0 26px;
  position: relative;
}
.page-products .ex-tree::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 14px;
  bottom: 14px;
  width: 1px;
  background: linear-gradient(180deg, var(--ex-line), rgba(198, 161, 91, 0.06));
}
.page-products .ex-tree__node {
  position: relative;
  margin-bottom: 10px;
}
.page-products .ex-tree__node::before {
  content: "";
  position: absolute;
  left: -22px;
  top: 24px;
  width: 22px;
  height: 1px;
  background: var(--ex-line);
}
.page-products .ex-tree__node::after {
  content: "";
  position: absolute;
  left: -26px;
  top: 20px;
  width: 9px;
  height: 9px;
  box-sizing: border-box;
  border-radius: 50%;
  background: var(--df-ink-900);
  border: 1px solid var(--ex-gold);
  transition: background-color 0.24s var(--df-ease), box-shadow 0.24s var(--df-ease);
}
.page-products .ex-tree__node:hover::after {
  background: var(--ex-amber);
  box-shadow: 0 0 0 4px rgba(224, 185, 106, 0.14);
}
.page-products .ex-tree__item {
  border: 1px solid var(--ex-hair);
  background: var(--df-ink-800);
  transition: border-color 0.26s var(--df-ease), background-color 0.26s var(--df-ease);
}
.page-products .ex-tree__item:hover,
.page-products .ex-tree__item[open] {
  border-color: var(--ex-line);
  background: linear-gradient(140deg, var(--df-ink-800), var(--df-brown-850));
}
.page-products .ex-tree__sum {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
}
.page-products .ex-tree__sum::-webkit-details-marker {
  display: none;
}
.page-products .ex-tree__sum:focus-visible {
  outline: 2px solid var(--ex-amber);
  outline-offset: -2px;
}
.page-products .ex-tree__num {
  font-family: var(--df-font-num);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--df-gray-500);
  flex: none;
  transition: color 0.2s var(--df-ease);
}
.page-products .ex-tree__sum:hover .ex-tree__num,
.page-products .ex-tree__item[open] .ex-tree__num {
  color: var(--ex-amber);
}
.page-products .ex-tree__label {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--df-ivory-050);
}
.page-products .ex-tree__count {
  margin-left: auto;
  flex: none;
  font-family: var(--df-font-num);
  font-variant-numeric: tabular-nums;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--df-gray-500);
  border: 1px solid var(--ex-hair);
  padding: 3px 7px;
}
.page-products .ex-tree__sign {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
  margin-left: 8px;
}
.page-products .ex-tree__sign::before,
.page-products .ex-tree__sign::after {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 14px;
  height: 1px;
  background: var(--df-gray-500);
  transition: transform 0.26s var(--df-ease), background-color 0.26s var(--df-ease);
}
.page-products .ex-tree__sign::after {
  transform: rotate(90deg);
}
.page-products .ex-tree__item[open] .ex-tree__sign::after {
  transform: rotate(0deg);
}
.page-products .ex-tree__item[open] .ex-tree__sign::before,
.page-products .ex-tree__item[open] .ex-tree__sign::after {
  background: var(--ex-amber);
}
.page-products .ex-tree__body {
  padding: 0 16px 18px;
  border-top: 1px solid var(--ex-hair);
}
.page-products .ex-tree__for {
  margin: 14px 0 0;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ex-gold);
}
.page-products .ex-tree__after {
  margin: 12px 0 0;
  font-size: 12px;
  line-height: 1.7;
  color: var(--df-gray-500);
}

/* ---------- 步骤列表 ---------- */
.page-products .ex-steps {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}
.page-products .ex-steps li {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 10px;
  font-size: 14px;
  line-height: 1.75;
  letter-spacing: 0.02em;
  color: var(--df-ivory-mute);
}
.page-products .ex-steps__n {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  font-family: var(--df-font-num);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  color: var(--ex-gold);
  border: 1px solid var(--df-gold-line);
}
.page-products .ex-steps--lg {
  margin-top: 22px;
  gap: 12px;
}
.page-products .ex-steps--lg li {
  font-size: 15px;
}

/* ---------- 路径树右侧 ---------- */
.page-products .ex-paths__side {
  display: grid;
  gap: 22px;
  align-content: start;
}
.page-products .ex-shot {
  margin: 0;
}
.page-products .ex-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-products .ex-points li {
  font-size: 14px;
  line-height: 1.8;
  letter-spacing: 0.02em;
  color: var(--df-ivory-mute);
  padding-left: 16px;
  border-left: 1px solid var(--ex-line);
}
.page-products .ex-points .df-tag {
  margin-right: 8px;
}

/* ---------- 下载资源 ---------- */
.page-products .ex-shot--wide {
  margin-bottom: 34px;
}
.page-products .ex-cards {
  display: grid;
  gap: 18px;
  align-items: start;
}
.page-products .ex-card {
  position: relative;
  padding: 22px 22px 24px;
  border: 1px solid var(--ex-hair);
  background: linear-gradient(160deg, rgba(22, 24, 28, 0.96), rgba(30, 23, 18, 0.96));
  box-shadow: var(--df-shadow-1);
  transition: transform 0.28s var(--df-ease), border-color 0.28s var(--df-ease);
}
.page-products .ex-card:hover,
.page-products .ex-card:focus-within {
  transform: translateY(-4px);
  border-color: var(--ex-line);
}
.page-products .ex-card__num {
  display: block;
  font-family: var(--df-font-num);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--ex-gold);
}
.page-products .ex-card__title {
  margin: 10px 0 0;
}
.page-products .ex-card__desc {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.8;
  letter-spacing: 0.02em;
  color: var(--df-ivory-mute);
}
.page-products .ex-card__spec {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--ex-hair);
  display: grid;
  gap: 8px;
}
.page-products .ex-card__spec div {
  display: grid;
  gap: 4px;
}
.page-products .ex-card__spec dt {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--df-gray-500);
}
.page-products .ex-card__spec dd {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--df-ivory-050);
}
.page-products .ex-card__batch {
  display: inline-block;
  margin-top: 18px;
}
.page-products .ex-downloads__note {
  margin: 30px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--df-gray-500);
}
.page-products .ex-downloads__note a {
  color: var(--ex-amber);
  text-decoration: none;
  border-bottom: 1px solid var(--df-gold-line);
}
.page-products .ex-downloads__note a:hover {
  border-bottom-color: var(--ex-amber);
}

/* ---------- 标签对照检索（纸面区） ---------- */
.page-products .ex-tags {
  background: linear-gradient(180deg, #E9E2D5, #F4EFE6);
  color: var(--df-ink-on-paper);
}
.page-products .ex-tags .df-eyebrow {
  color: var(--df-metal-300);
}
.page-products .ex-tags .df-title-lg {
  color: var(--df-ink-on-paper);
  margin: 12px 0 0;
}
.page-products .ex-tags__lede {
  margin: 18px 0 0;
  font-size: 15px;
  line-height: 1.85;
  letter-spacing: 0.02em;
  color: #4A443A;
}
.page-products .ex-tags .ex-steps li {
  color: #3E392F;
}
.page-products .ex-tags .ex-steps__n {
  color: #7A6231;
  border-color: rgba(122, 98, 49, 0.45);
}
.page-products .ex-tags__aside {
  display: grid;
  gap: 16px;
  align-content: start;
}
.page-products .ex-tags .df-media__label {
  color: #4A443A;
}
.page-products .ex-tags .df-note {
  font-size: 13px;
  line-height: 1.8;
  color: #5C5548;
}
.page-products .ex-meter {
  margin-top: 28px;
  display: grid;
  gap: 12px;
}
.page-products .ex-meter__row {
  display: grid;
  grid-template-columns: 5.5rem minmax(0, 1fr) 3.5rem;
  align-items: center;
  gap: 12px;
  font-size: 13px;
}
.page-products .ex-meter__label {
  color: #5C5548;
  letter-spacing: 0.02em;
}
.page-products .ex-meter__track {
  position: relative;
  display: block;
  height: 8px;
  background: rgba(21, 19, 15, 0.09);
  border: 1px solid rgba(21, 19, 15, 0.08);
  overflow: hidden;
}
.page-products .ex-meter__bar {
  display: block;
  height: 100%;
}
.page-products .ex-meter__bar--before {
  width: 100%;
  background: linear-gradient(90deg, rgba(110, 101, 85, 0.5), var(--df-metal-300));
}
.page-products .ex-meter__bar--now {
  width: 29%;
  background: linear-gradient(90deg, var(--df-gold-500), var(--df-amber-400));
}
.page-products .ex-meter__val {
  font-family: var(--df-font-num);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  text-align: right;
  color: var(--df-ink-on-paper);
}
.page-products .ex-meter__cap {
  margin: 6px 0 0;
  font-size: 12px;
  color: #6C6456;
}

/* ---------- 查询入口 ---------- */
.page-products .ex-query__grid {
  align-items: center;
}
.page-products .ex-query__shot {
  margin: 0;
}
.page-products .ex-query .df-title-lg {
  margin: 12px 0 0;
}
.page-products .ex-query__lede {
  margin: 18px 0 0;
  font-size: 15px;
  line-height: 1.85;
  letter-spacing: 0.02em;
  color: var(--df-ivory-mute);
}
.page-products .ex-query__note {
  margin: 22px 0 0;
  padding-left: 16px;
  border-left: 1px solid var(--ex-line);
  font-size: 13px;
  line-height: 1.8;
  color: var(--df-gray-500);
}
.page-products .ex-query__note a {
  color: var(--ex-amber);
  text-decoration: none;
  border-bottom: 1px solid var(--df-gold-line);
}
.page-products .ex-query__note a:hover {
  border-bottom-color: var(--ex-amber);
}

/* ---------- 跨端对照 ---------- */
.page-products .ex-cross .ex-shot {
  margin: 0 0 30px;
}
.page-products .ex-compare__wrap {
  overflow-x: auto;
  border: 1px solid var(--ex-hair);
  background: rgba(11, 12, 14, 0.6);
}
.page-products .ex-compare {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 14px;
  line-height: 1.7;
}
.page-products .ex-compare__cap {
  caption-side: top;
  text-align: left;
  padding: 14px 18px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--df-gray-500);
  border-bottom: 1px solid var(--ex-hair);
}
.page-products .ex-compare th,
.page-products .ex-compare td {
  padding: 14px 18px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--ex-hair);
  letter-spacing: 0.02em;
}
.page-products .ex-compare thead th {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--ex-gold);
  font-weight: 600;
  background: rgba(30, 23, 18, 0.55);
}
.page-products .ex-compare tbody th {
  font-weight: 600;
  color: var(--df-ivory-050);
  white-space: nowrap;
}
.page-products .ex-compare tbody td {
  color: var(--df-ivory-mute);
}
.page-products .ex-compare tbody tr:hover th,
.page-products .ex-compare tbody tr:hover td {
  background: rgba(198, 161, 91, 0.06);
  color: var(--df-ivory-050);
}
.page-products .ex-compare tbody tr:last-child th,
.page-products .ex-compare tbody tr:last-child td {
  border-bottom: 0;
}
.page-products .ex-cross__tip {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--df-ivory-mute);
  border-top: 1px solid var(--ex-line);
  padding-top: 18px;
}

/* ---------- 少走弯路 ---------- */
.page-products .ex-slip__list {
  border-top: 1px solid var(--ex-hair);
}
.page-products .ex-slip .df-index__row {
  transition: background-color 0.22s var(--df-ease);
}
.page-products .ex-slip .df-index__row:hover {
  background: rgba(198, 161, 91, 0.05);
}
.page-products .ex-slip .df-index__row:hover .df-index__num {
  color: var(--ex-amber);
}

/* ---------- 收尾 ---------- */
.page-products .ex-cta {
  border-top: 1px solid var(--ex-hair);
  background: linear-gradient(140deg, rgba(30, 23, 18, 0.9), rgba(11, 12, 14, 1));
}
.page-products .ex-cta__inner {
  display: grid;
  gap: 24px;
}
.page-products .ex-cta__text .df-title-md {
  margin: 0;
}
.page-products .ex-cta__text p {
  margin: 14px 0 0;
  max-width: 46em;
  font-size: 14px;
  line-height: 1.85;
  letter-spacing: 0.02em;
  color: var(--df-ivory-mute);
}
.page-products .ex-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-products .ex-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px 30px;
  }
  .page-products .ex-card:nth-child(2) {
    margin-top: 38px;
  }
  .page-products .ex-card:nth-child(4) {
    margin-top: 38px;
  }
  .page-products .ex-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }
}

@media (min-width: 900px) {
  .page-products .ex-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 56px;
    align-items: end;
    margin-top: 44px;
  }
  .page-products .ex-paths__grid {
    gap: 44px;
  }
  .page-products .ex-query__grid {
    gap: 44px;
  }
}

@media (min-width: 1080px) {
  .page-products .ex-tree__label {
    font-size: 16px;
  }
  .page-products .ex-hero__meta li {
    padding: 18px 16px;
  }
}
<<<END>>>