.page-products {
  background: var(--ink-800);
  color: var(--text);
  overflow-x: hidden;
}

.page-products .pp-wrap {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 20px;
}

.page-products .sec-head {
  max-width: 720px;
}

.page-products .sec-head h2 {
  margin: 10px 0 14px;
  font-family: var(--font-display);
  font-size: clamp(26px, 5.4vw, 44px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -.01em;
}

.page-products .sec-head .lede {
  margin: 0;
  color: var(--glass);
  font-size: 16px;
  line-height: 1.75;
}

/* ---------- 首屏 ---------- */
.page-products .hero {
  padding: 28px 0 48px;
  border-bottom: 1px solid var(--grid-soft);
}

.page-products .hero-grid {
  display: grid;
  gap: 28px;
}

.page-products .hero-versions {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: .08em;
}

.page-products .hero-versions .v-new {
  font-size: clamp(38px, 11vw, 74px);
  line-height: .95;
  color: var(--orange);
}

.page-products .hero-versions .v-sep {
  font-size: 20px;
  color: var(--grid);
}

.page-products .hero-versions .v-old {
  font-size: clamp(16px, 4vw, 24px);
  color: var(--muted);
}

.page-products h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(30px, 7.2vw, 60px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -.01em;
}

.page-products .hero-copy .lede {
  max-width: 46ch;
  margin: 0 0 24px;
  color: var(--glass);
  font-size: 16px;
  line-height: 1.8;
}

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

.page-products .hero-figure {
  display: grid;
  gap: 14px;
}

.page-products .media-frame {
  margin: 0;
  padding: 8px;
  border: 1px solid var(--cyan-24);
  background: var(--ink-900);
}

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

.page-products .media-caption {
  padding: 8px 2px 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .02em;
  color: var(--muted);
}

.page-products .hero-meter {
  display: grid;
  gap: 2px;
  padding: 14px 16px;
  border-left: 3px solid var(--orange);
}

.page-products .meter-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--glass);
}

.page-products .meter-num {
  font-family: var(--font-mono);
  font-size: clamp(38px, 10vw, 58px);
  font-weight: 600;
  letter-spacing: .04em;
  line-height: 1.1;
  color: var(--cyan);
}

.page-products .meter-unit {
  margin-left: 4px;
  font-size: .38em;
  color: var(--glass);
}

.page-products .meter-note {
  font-size: 13px;
  color: var(--muted);
}

/* ---------- 版本对照 ---------- */
.page-products .changes {
  padding: 56px 0;
  background-color: var(--ink-900);
  background-image:
    linear-gradient(rgba(43, 74, 94, .22) 1px, transparent 1px),
    linear-gradient(90deg, rgba(43, 74, 94, .22) 1px, transparent 1px);
  background-size: 64px 64px;
}

.page-products .ver-tabs {
  position: relative;
  margin-top: 32px;
}

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

.page-products .ver-tablist {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-products .ver-tab {
  padding: 10px 18px;
  border: 1px solid var(--grid);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--muted);
  cursor: pointer;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-products .ver-tab:hover {
  color: var(--text);
  border-color: var(--cyan-45);
}

.page-products #ver-v40:checked ~ .ver-tablist label[for="ver-v40"],
.page-products #ver-v38:checked ~ .ver-tablist label[for="ver-v38"] {
  color: var(--ink-800);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-products #ver-v40:focus-visible ~ .ver-tablist label[for="ver-v40"],
.page-products #ver-v38:focus-visible ~ .ver-tablist label[for="ver-v38"] {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-products .ver-panel {
  display: none;
  margin-top: 16px;
  padding: 20px;
  border: 1px dashed var(--grid);
  border-left: 3px solid var(--cyan);
  background: rgba(13, 33, 56, .7);
}

.page-products .ver-panel h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
}

.page-products .ver-panel p {
  margin: 0;
  color: var(--glass);
  font-size: 15px;
  line-height: 1.8;
}

.page-products .ver-panel--v40 {
  border-left-color: var(--orange);
}

.page-products #ver-v40:checked ~ .ver-panels .ver-panel--v40 {
  display: block;
}

.page-products #ver-v38:checked ~ .ver-panels .ver-panel--v38 {
  display: block;
}

.page-products .compare {
  margin-top: 32px;
  border-top: 1px solid var(--grid-soft);
}

.page-products .compare-head {
  display: none;
}

.page-products .compare-row {
  display: grid;
  gap: 10px;
  padding: 18px 0;
  border-bottom: 1px solid var(--grid-soft);
}

.page-products .compare-cell {
  display: block;
  font-size: 15px;
  line-height: 1.7;
  color: var(--glass);
}

.page-products .compare-cell--label {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--text);
}

.page-products .compare-cell--v38 {
  padding-left: 12px;
  border-left: 1px solid var(--cyan-45);
}

.page-products .compare-cell--v40 {
  padding-left: 12px;
  border-left: 2px solid var(--orange);
  color: var(--text);
}

.page-products .change-figure {
  margin-top: 32px;
}

/* ---------- 导出 ---------- */
.page-products .export {
  padding: 56px 0;
}

.page-products .steps {
  display: grid;
  gap: 14px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .step {
  position: relative;
  padding: 18px 18px 18px 62px;
  border: 1px solid var(--grid-soft);
  background: var(--ink-700);
}

.page-products .step--now {
  border-color: var(--orange);
  box-shadow: inset 3px 0 0 var(--orange);
}

.page-products .step-num {
  position: absolute;
  top: 16px;
  left: 16px;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--orange);
}

.page-products .step-title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
}

.page-products .step-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--glass);
}

.page-products .export-main {
  display: grid;
  gap: 28px;
  margin-top: 36px;
}

.page-products .fmts {
  display: grid;
  gap: 18px;
}

.page-products .fmt {
  padding-top: 14px;
  border-top: 2px solid var(--cyan);
}

.page-products .fmt-code {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--cyan);
}

.page-products .fmt-title {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
}

.page-products .fmt-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--glass);
}

.page-products .fields-block {
  margin-top: 36px;
  border: 1px solid var(--grid);
  background: var(--ink-900);
}

.page-products .fields-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 18px 14px;
  border-bottom: 1px solid var(--grid-soft);
}

.page-products .fields-head h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
}

.page-products .field-list {
  margin: 0;
  padding: 6px 18px 18px;
  list-style: none;
}

.page-products .field-row {
  display: grid;
  gap: 4px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--grid-soft);
}

.page-products .field-row:last-child {
  border-bottom: 0;
}

.page-products .field-code {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--orange);
}

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

.page-products .field-sample {
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 筛选 ---------- */
.page-products .filter-sec {
  padding: 56px 0;
  background: var(--ink-700);
  border-top: 1px solid var(--grid-soft);
  border-bottom: 1px solid var(--grid-soft);
}

.page-products .chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 28px 0 0;
}

.page-products .chip {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--cyan-45);
  border-radius: 999px;
  background: var(--cyan-12);
}

.page-products .chip-key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--cyan);
}

.page-products .chip-val {
  font-size: 13px;
  color: var(--text);
}

.page-products .filter-body {
  display: grid;
  gap: 28px;
  margin-top: 28px;
}

.page-products .index-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--grid);
}

.page-products .index-row {
  display: grid;
  gap: 6px;
  padding: 14px 0;
  border-bottom: 1px solid var(--grid-soft);
}

.page-products .index-num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--cyan);
}

.page-products .index-text {
  font-size: 15px;
  line-height: 1.6;
  color: var(--text);
}

.page-products .rec-tag {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  color: var(--glass);
}

.page-products .rec-link {
  justify-self: start;
  font-size: 13px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-45);
}

.page-products .rec-link:hover {
  border-bottom-color: var(--cyan);
}

.page-products .filter-figure {
  margin: 0;
}

.page-products .filter-note {
  margin: 28px 0 0;
  padding: 16px 18px;
  border-left: 3px solid var(--cyan);
  background: rgba(3, 10, 18, .5);
  font-size: 14px;
  line-height: 1.8;
  color: var(--glass);
}

/* ---------- 使用场景 ---------- */
.page-products .audience {
  padding: 56px 0;
  background: var(--paper);
  color: var(--ink-800);
}

.page-products .audience .sec-head h2 {
  color: var(--ink-800);
}

.page-products .audience .sec-head .lede {
  color: #3A5165;
}

.page-products .audience .eyebrow {
  color: #1B4A5C;
}

.page-products .who-list {
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(7, 20, 38, .18);
}

.page-products .who-row {
  display: grid;
  gap: 8px;
  padding: 20px 0;
  border-bottom: 1px solid rgba(7, 20, 38, .18);
}

.page-products .who-num {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 600;
  letter-spacing: .08em;
  color: #16705F;
}

.page-products .who-title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  color: var(--ink-800);
}

.page-products .who-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: #2E4557;
}

/* ---------- 变更说明 ---------- */
.page-products .versions {
  padding: 56px 0;
  background: var(--ink-900);
}

.page-products .acc-group {
  margin-top: 32px;
}

.page-products .acc-group-label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--orange);
}

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

.page-products .accordion-item {
  border-bottom: 1px solid var(--grid);
}

.page-products .accordion-item h3 {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.page-products .accordion-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 18px 2px;
  border: 0;
  background: none;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  transition: color var(--dur) var(--ease);
}

.page-products .accordion-trigger::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--cyan);
}

.page-products .accordion-trigger[aria-expanded="true"]::after {
  content: "−";
}

.page-products .accordion-trigger:hover {
  color: var(--cyan);
}

.page-products .accordion-trigger:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-products .accordion-panel {
  padding: 0 2px 20px;
  color: var(--glass);
  font-size: 15px;
  line-height: 1.8;
}

.page-products .accordion-panel p {
  margin: 0;
}

.page-products .accordion-panel[hidden] {
  display: none;
}

/* ---------- 结尾引导 ---------- */
.page-products .cta-band {
  padding: 56px 0 64px;
  background: linear-gradient(180deg, var(--ink-700) 0%, var(--ink-800) 100%);
  border-top: 2px solid var(--cyan);
}

.page-products .cta-grid {
  display: grid;
  gap: 24px;
}

.page-products .cta-band h2 {
  margin: 10px 0 14px;
  font-family: var(--font-display);
  font-size: clamp(26px, 5.2vw, 40px);
  font-weight: 800;
  line-height: 1.12;
}

.page-products .cta-band .lede {
  margin: 0;
  max-width: 56ch;
  color: var(--glass);
  font-size: 15px;
  line-height: 1.8;
}

.page-products .cta-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-content: start;
}

.page-products .stat-strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 20px;
  margin: 36px 0 0;
  padding: 24px 0 0;
  list-style: none;
  border-top: 1px solid var(--grid);
}

.page-products .stat {
  display: grid;
  gap: 4px;
}

.page-products .stat-num {
  font-family: var(--font-mono);
  font-size: clamp(28px, 7vw, 44px);
  font-weight: 600;
  letter-spacing: .04em;
  line-height: 1;
  color: var(--cyan);
}

.page-products .stat-label {
  font-size: 13px;
  color: var(--muted);
}

/* ---------- 窄屏补充 ---------- */
@media (max-width: 859px) {
  .page-products .compare-cell--v38::before,
  .page-products .compare-cell--v40::before {
    display: block;
    margin-bottom: 4px;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: .12em;
  }

  .page-products .compare-cell--v38::before {
    content: "V3.8 稳定版";
    color: var(--cyan);
  }

  .page-products .compare-cell--v40::before {
    content: "V4.0 焕新版";
    color: var(--orange);
  }

  .page-products .compare-cell--label {
    font-size: 15px;
    letter-spacing: .02em;
  }
}

/* ---------- 宽屏 ---------- */
@media (min-width: 860px) {
  .page-products .pp-wrap {
    padding: 0 32px;
  }

  .page-products .hero {
    padding: 40px 0 64px;
  }

  .page-products .hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.02fr);
    gap: 48px;
    align-items: center;
  }

  .page-products .changes,
  .page-products .export,
  .page-products .filter-sec,
  .page-products .audience,
  .page-products .versions,
  .page-products .cta-band {
    padding: 84px 0;
  }

  .page-products .compare-head {
    display: grid;
    grid-template-columns: 1.05fr 1fr 1fr;
    gap: 24px;
    align-items: end;
    padding: 0 0 12px;
  }

  .page-products .compare-head .compare-cell {
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: .12em;
  }

  .page-products .compare-head .compare-cell--v38 {
    color: var(--cyan);
  }

  .page-products .compare-head .compare-cell--v40 {
    color: var(--orange);
  }

  .page-products .compare-row {
    grid-template-columns: 1.05fr 1fr 1fr;
    gap: 24px;
    align-items: start;
    padding: 22px 0;
  }

  .page-products .compare-cell--label {
    letter-spacing: .1em;
  }

  .page-products .steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
  }

  .page-products .export-main {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: 36px;
    align-items: start;
  }

  .page-products .fmts {
    gap: 22px;
  }

  .page-products .field-row {
    grid-template-columns: 210px 130px minmax(0, 1fr);
    gap: 16px;
    align-items: baseline;
  }

  .page-products .filter-body {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    gap: 36px;
    align-items: start;
  }

  .page-products .index-row {
    grid-template-columns: 190px minmax(0, 1fr) auto;
    align-items: center;
    gap: 12px 16px;
  }

  .page-products .rec-link {
    grid-column: 3;
    justify-self: end;
  }

  .page-products .who-row {
    grid-template-columns: 88px minmax(0, 1fr);
    gap: 24px;
    padding: 26px 0;
    align-items: start;
  }

  .page-products .who-num {
    font-size: 32px;
  }

  .page-products .cta-grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }

  .page-products .stat-strip {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 24px;
    margin-top: 48px;
  }
}

@media (min-width: 1100px) {
  .page-products .hero-versions .v-new {
    font-size: 82px;
  }

  .page-products .hero-copy .lede {
    font-size: 17px;
  }
}
<<<END>>>