.page-products {
  --entry-shadow: 6px 6px 0 rgba(4, 12, 20, .55);
  --entry-gap: clamp(16px, 2.2vw, 28px);
  color: var(--fg);
}

.page-products .entry-hero {
  padding-top: clamp(20px, 3.6vw, 44px);
}

.page-products .hero-frame {
  position: relative;
  border: 2px solid var(--line);
  box-shadow: var(--shadow-brutal);
  background:
    radial-gradient(circle at 88% 12%, rgba(51, 224, 208, .14), transparent 58%),
    linear-gradient(158deg, var(--panel-hi) 0%, var(--ink) 64%);
  padding: clamp(20px, 3.4vw, 46px);
  display: grid;
  gap: clamp(20px, 3vw, 40px);
  overflow: hidden;
}

.page-products .hero-frame::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 6px;
  background: linear-gradient(90deg, var(--cyan), var(--orange));
}

.page-products .frame-ticks {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 14px;
  background-image: repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 26px);
  opacity: .7;
  pointer-events: none;
}

.page-products h1 {
  font-size: clamp(28px, 5.4vw, 54px);
  line-height: 1.14;
  font-weight: 800;
  letter-spacing: -.01em;
  margin: 12px 0 0;
  max-width: 15em;
}

.page-products .hero-copy .lede {
  margin-top: 16px;
  max-width: 46em;
  color: var(--fg-soft);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
}

.page-products .hero-copy .btn-row {
  margin-top: 22px;
}

.page-products .hero-copy .tag-row {
  margin-top: 20px;
}

.page-products .hero-figure {
  align-self: end;
}

.page-products .figure-media {
  border: 2px solid var(--line);
  background:
    linear-gradient(135deg, rgba(51, 224, 208, .07), transparent 60%),
    var(--ink-deep);
  box-shadow: var(--entry-shadow);
  overflow: hidden;
}

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

.page-products .figure-caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: .04em;
  color: var(--fg-soft);
}

/* ---------- 章节骨架 ---------- */
.page-products .board-section,
.page-products .step-section,
.page-products .fav-section,
.page-products .sync-section,
.page-products .fit-section {
  padding-top: clamp(48px, 7vw, 92px);
}

.page-products .section-head {
  margin-bottom: clamp(22px, 3vw, 38px);
}

.page-products .section-head h2 {
  margin: 10px 0 0;
  font-size: clamp(23px, 3.2vw, 38px);
  line-height: 1.24;
  font-weight: 800;
  max-width: 20em;
}

.page-products .section-head .lede {
  margin-top: 14px;
  max-width: 60em;
  color: var(--fg-soft);
  line-height: 1.85;
}

.page-products .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0;
}

.page-products .section-num {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--orange);
  letter-spacing: .08em;
}

@media (min-width: 900px) {
  .page-products .hero-frame {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
  }

  .page-products .split-head {
    display: grid;
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: clamp(24px, 4vw, 64px);
    align-items: end;
  }

  .page-products .split-head .lede {
    margin-top: 0;
  }
}

/* ---------- 入口控制面板 ---------- */
.page-products .board {
  display: grid;
  gap: var(--entry-gap);
}

.page-products .board-rail {
  border-top: 6px solid var(--orange);
  padding-top: 16px;
}

.page-products .rail-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--fg-soft);
  margin: 0 0 12px;
}

.page-products .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-products .filter-btn {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  padding: 8px 11px;
  border: 2px solid var(--line);
  background: transparent;
  color: var(--fg-soft);
  border-radius: var(--radius);
  cursor: pointer;
  transition: color .16s var(--ease), border-color .16s var(--ease), background .16s var(--ease);
}

.page-products .filter-btn:hover {
  color: var(--warm);
  border-color: var(--cyan);
}

.page-products .filter-btn[aria-pressed="true"] {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink);
  font-weight: 700;
}

.page-products .filter-btn:focus-visible {
  outline: none;
  box-shadow: var(--focus);
}

.page-products .filter-count {
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--cyan);
}

.page-products .rail-index {
  list-style: none;
  margin: 20px 0 0;
  padding: 14px 0 0;
  border-top: 1px dashed var(--line);
  display: grid;
  gap: 10px;
  font-size: 14px;
  color: var(--fg-soft);
}

.page-products .rail-index li {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.page-products .rail-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--orange);
  letter-spacing: .1em;
}

.page-products .entry-card {
  border: 2px solid var(--line);
  background: var(--panel);
  box-shadow: var(--entry-shadow);
  padding: clamp(18px, 2.4vw, 28px);
  transition: transform .18s var(--ease), border-color .18s var(--ease);
}

.page-products .entry-card + .entry-card {
  margin-top: 18px;
}

.page-products .entry-card:hover {
  transform: translate(-2px, -2px);
  border-color: var(--cyan);
}

.page-products .entry-card[data-hidden="true"] {
  display: none;
}

.page-products .entry-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-products .entry-num {
  font-family: var(--font-mono);
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 700;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--cyan);
  letter-spacing: .04em;
}

.page-products .entry-title {
  margin: 14px 0 0;
  font-size: clamp(19px, 2.2vw, 24px);
  font-weight: 800;
  letter-spacing: .01em;
}

.page-products .entry-desc {
  margin: 10px 0 0;
  color: var(--fg-soft);
  line-height: 1.85;
}

.page-products .entry-facts {
  margin: 18px 0 0;
  display: grid;
  gap: 8px;
}

.page-products .entry-facts > div {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  border-top: 1px dashed var(--line);
  padding-top: 8px;
}

.page-products .entry-facts dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--steel);
}

.page-products .entry-facts dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--warm);
}

.page-products .entry-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 2px solid rgba(51, 224, 208, .4);
  padding-bottom: 3px;
}

.page-products .entry-link::after {
  content: "→";
}

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

.page-products .entry-link:focus-visible {
  outline: none;
  box-shadow: var(--focus);
}

.page-products .side-panel {
  padding: clamp(18px, 2.2vw, 24px);
  border: 2px solid var(--line);
  background: linear-gradient(170deg, var(--panel-hi), var(--ink));
}

.page-products .side-kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--fg-soft);
}

.page-products .side-version {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(34px, 4.4vw, 46px);
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--cyan);
  line-height: 1;
}

.page-products .side-note {
  margin: 10px 0 0;
  font-size: 14px;
  color: var(--fg-soft);
  line-height: 1.7;
}

.page-products .side-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 14px 0 0;
  border-top: 1px dashed var(--line);
  display: grid;
  gap: 9px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--warm);
}

.page-products .side-list li {
  position: relative;
  padding-left: 16px;
}

.page-products .side-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 7px;
  height: 7px;
  background: var(--cyan);
  border-radius: 50%;
}

.page-products .side-cta {
  display: block;
  margin-top: 16px;
  text-align: center;
  font-size: 13px;
}

@media (min-width: 900px) {
  .page-products .board {
    grid-template-columns: 220px minmax(0, 1fr) 258px;
    gap: clamp(22px, 2.6vw, 38px);
    align-items: start;
  }

  .page-products .board-rail {
    position: sticky;
    top: 24px;
  }

  .page-products .board-side {
    margin-top: 64px;
  }
}

@media (min-width: 1180px) {
  .page-products .board {
    grid-template-columns: 236px minmax(0, 1fr) 276px;
  }
}

/* ---------- 两步流程 ---------- */
.page-products .step-grid {
  display: grid;
  gap: var(--entry-gap);
}

.page-products .step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-products .step {
  position: relative;
  border-left: 2px solid var(--line);
  padding: 2px 0 6px 22px;
}

.page-products .step::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 6px;
  width: 12px;
  height: 12px;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(51, 224, 208, .18);
}

.page-products .step-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--orange);
}

.page-products .step h3 {
  margin: 8px 0 0;
  font-size: clamp(18px, 2vw, 22px);
  font-weight: 800;
}

.page-products .step p {
  margin: 8px 0 0;
  color: var(--fg-soft);
  line-height: 1.85;
  max-width: 44em;
}

.page-products .tip-row {
  display: grid;
  gap: 10px;
  margin-top: clamp(22px, 3vw, 34px);
}

.page-products .tip {
  border: 2px solid var(--line);
  background: rgba(18, 44, 66, .5);
}

.page-products .tip summary {
  cursor: pointer;
  padding: 14px 16px;
  font-size: 15px;
  font-weight: 700;
  color: var(--warm);
  list-style: none;
  display: flex;
  align-items: center;
  gap: 10px;
}

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

.page-products .tip summary::before {
  content: "+";
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--cyan);
  line-height: 1;
}

.page-products .tip[open] summary::before {
  content: "−";
  color: var(--orange);
}

.page-products .tip summary:focus-visible {
  outline: none;
  box-shadow: var(--focus);
}

.page-products .tip p {
  margin: 0;
  padding: 0 16px 16px 42px;
  color: var(--fg-soft);
  line-height: 1.85;
}

@media (min-width: 900px) {
  .page-products .step-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
    gap: clamp(24px, 4vw, 60px);
  }

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

/* ---------- 收藏页直达 ---------- */
.page-products .fav-grid,
.page-products .sync-grid {
  display: grid;
  gap: var(--entry-gap);
}

.page-products .fav-copy h2,
.page-products .sync-copy h2 {
  margin: 10px 0 0;
  font-size: clamp(23px, 3.2vw, 38px);
  line-height: 1.24;
  font-weight: 800;
  max-width: 18em;
}

.page-products .fav-copy > p,
.page-products .sync-copy > p {
  margin: 14px 0 0;
  color: var(--fg-soft);
  line-height: 1.85;
  max-width: 52em;
}

.page-products .url-chip {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  margin-top: 20px;
  padding: 14px 16px;
  border: 2px solid var(--orange);
  background: rgba(255, 107, 61, .07);
  box-shadow: var(--entry-shadow);
}

.page-products .url-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--orange);
}

.page-products .url-value {
  font-family: var(--font-mono);
  font-size: clamp(15px, 2vw, 19px);
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--warm);
  word-break: break-all;
}

.page-products .fav-steps {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-products .fav-steps li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--warm);
  border-top: 1px dashed var(--line);
  padding-top: 12px;
}

.page-products .fav-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--cyan);
  padding-top: 4px;
}

.page-products .fav-note {
  margin-top: 20px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--steel);
  border-left: 6px solid var(--teal);
  padding-left: 14px;
}

@media (min-width: 900px) {
  .page-products .fav-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: clamp(24px, 4vw, 60px);
  }
}

/* ---------- 回访延续 ---------- */
.page-products .sync-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .sync-list li {
  border: 2px solid var(--line);
  background: var(--panel);
  padding: 14px 16px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--fg-soft);
}

.page-products .sync-list strong {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--cyan);
  font-weight: 700;
}

.page-products .sync-copy .btn-row {
  margin-top: 22px;
}

@media (min-width: 900px) {
  .page-products .sync-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
    gap: clamp(24px, 4vw, 60px);
  }

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

/* ---------- 版本索引（纸区） ---------- */
.page-products .version-zone {
  margin-top: clamp(48px, 7vw, 92px);
  padding: clamp(44px, 6vw, 84px) 0;
  border-top: 6px solid var(--orange);
  border-bottom: 2px solid var(--line);
  background: var(--paper);
  color: var(--brown);
}

.page-products .version-zone .eyebrow {
  color: var(--teal);
}

.page-products .version-zone .section-num {
  color: var(--orange);
}

.page-products .version-zone h2 {
  color: var(--brown);
}

.page-products .version-lede {
  color: #5a4433;
}

.page-products .dim-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 2px solid var(--brown);
}

.page-products .dim-row {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(36, 26, 20, .22);
}

.page-products .dim-key {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--brown);
}

.page-products .dim-use {
  font-size: 15px;
  line-height: 1.8;
  color: #4a392c;
}

.page-products .dim-out {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--teal);
}

.page-products .stage-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.page-products .stage-chip {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  padding: 7px 11px;
  border: 2px solid var(--brown);
  background: transparent;
  color: var(--brown);
}

.page-products .version-band {
  display: grid;
  gap: var(--entry-gap);
  margin-top: clamp(24px, 3.4vw, 40px);
}

.page-products .version-zone .figure-media {
  border-color: var(--brown);
  box-shadow: 6px 6px 0 rgba(36, 26, 20, .28);
  background: var(--ink-deep);
}

.page-products .version-zone .figure-caption {
  color: #6b5342;
}

.page-products .version-note p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: #4a392c;
}

.page-products .version-note .btn-row {
  margin-top: 18px;
}

.page-products .version-zone .btn-ghost {
  border-color: var(--brown);
  color: var(--brown);
}

.page-products .version-zone .btn-ghost:hover {
  border-color: var(--teal);
  color: var(--teal);
}

@media (min-width: 760px) {
  .page-products .dim-row {
    grid-template-columns: 130px minmax(0, 1fr) 130px;
    align-items: baseline;
    gap: 20px;
  }

  .page-products .dim-out {
    text-align: right;
  }
}

@media (min-width: 960px) {
  .page-products .version-band {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
    gap: clamp(24px, 4vw, 56px);
  }
}

/* ---------- 适配与求助 ---------- */
.page-products .fit-grid {
  display: grid;
  gap: 16px;
}

.page-products .fit-card {
  border: 2px solid var(--line);
  background: var(--panel);
  padding: clamp(18px, 2.2vw, 26px);
  box-shadow: var(--entry-shadow);
}

.page-products .fit-card h3 {
  margin: 0;
  font-size: clamp(17px, 1.9vw, 20px);
  font-weight: 800;
}

.page-products .fit-card p {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--fg-soft);
}

.page-products .fit-card .entry-link {
  margin-top: 14px;
}

@media (min-width: 860px) {
  .page-products .fit-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }
}

.page-products .next-band {
  margin-top: clamp(28px, 4vw, 52px);
  border: 2px solid var(--line);
  border-left: 6px solid var(--cyan);
  background: linear-gradient(120deg, var(--panel-hi), var(--ink));
  padding: clamp(18px, 2.6vw, 28px);
}

.page-products .next-kicker {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--fg-soft);
}

.page-products .next-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
}

.page-products .next-links a {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: .06em;
  color: var(--warm);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  padding-bottom: 3px;
}

.page-products .next-links a:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.page-products .next-links a:focus-visible {
  outline: none;
  box-shadow: var(--focus);
}

@media (prefers-reduced-motion: reduce) {
  .page-products .entry-card,
  .page-products .filter-btn {
    transition: none;
  }

  .page-products .entry-card:hover {
    transform: none;
  }
}