.page-products {
  --db-rail: 208px;
  --db-gap: clamp(22px, 3.4vw, 44px);
  background: var(--night);
  color: var(--paper);
  font-family: var(--font-body);
  padding-bottom: clamp(48px, 7vw, 88px);
}

.page-products p {
  margin: 0 0 1em;
  line-height: 1.78;
  color: var(--mist);
}

.page-products strong {
  color: var(--paper);
  font-weight: 600;
}

.page-products h1,
.page-products h2,
.page-products h3 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--paper);
  margin: 0;
}

.page-products .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
  margin: 0 0 16px;
}

/* ---------- 头部 ---------- */
.page-products .db-head {
  position: relative;
  padding: calc(var(--header-h) + 30px) 0 clamp(30px, 5vw, 58px);
  background:
    radial-gradient(120% 90% at 84% -10%, rgba(183, 255, 42, 0.16), transparent 58%),
    radial-gradient(90% 70% at 6% 110%, rgba(255, 157, 46, 0.12), transparent 62%),
    repeating-linear-gradient(112deg, rgba(169, 183, 198, 0.055) 0 2px, transparent 2px 28px),
    var(--night-deep);
  border-bottom: 3px solid var(--volt);
}

.page-products .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--mist);
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-products .crumb {
  color: var(--mist);
  text-decoration: none;
}

.page-products .crumb:hover,
.page-products .crumb:focus-visible {
  color: var(--volt);
}

.page-products .crumb[aria-current="page"] {
  color: var(--paper);
}

.page-products .crumb-sep {
  color: var(--amber);
}

.page-products .db-head-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 46px);
  align-items: end;
}

.page-products .db-head-lead h1 {
  font-size: clamp(34px, 7vw, 66px);
  line-height: 0.98;
  max-width: 16em;
}

.page-products .db-head-lead .lede {
  margin-top: 20px;
  max-width: 60ch;
  font-size: clamp(16px, 1.6vw, 18px);
  color: rgba(242, 231, 207, 0.84);
}

.page-products .db-head-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* 比分牌式概况 */
.page-products .db-scorecard {
  border: 2px solid var(--line-strong);
  background:
    linear-gradient(180deg, rgba(18, 52, 90, 0.94), rgba(5, 15, 29, 0.96));
  box-shadow: 10px 10px 0 rgba(5, 15, 29, 0.8);
  padding: 20px 20px 16px;
}

.page-products .db-score-title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber);
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.page-products .db-score-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .db-score-row {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--line);
}

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

.page-products .db-score-num {
  font-family: var(--font-display);
  font-size: 40px;
  line-height: 0.9;
  color: var(--volt);
  min-width: 3.4ch;
  letter-spacing: -0.02em;
}

.page-products .db-score-unit {
  font-size: 16px;
  margin-left: 2px;
  color: var(--amber);
}

.page-products .db-score-label {
  font-size: 14px;
  color: var(--mist);
  line-height: 1.4;
}

.page-products .db-score-foot {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--mist);
}

/* ---------- 主栅格 ---------- */
.page-products .db-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--db-gap);
  margin-top: clamp(30px, 5vw, 56px);
}

/* 字段索引轨道 */
.page-products .db-rail-title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber);
  margin: 0 0 12px;
}

.page-products .db-rail-list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 1px;
  border-left: 2px solid var(--line);
}

.page-products .db-rail-list a {
  display: block;
  padding: 9px 12px 9px 14px;
  margin-left: -2px;
  border-left: 3px solid transparent;
  color: var(--mist);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.page-products .db-rail-list a:hover,
.page-products .db-rail-list a:focus-visible {
  color: var(--paper);
  border-left-color: var(--volt);
  background: rgba(183, 255, 42, 0.08);
}

.page-products .rail-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--amber);
  margin-right: 8px;
}

.page-products .db-rail-cta {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--volt);
  text-decoration: none;
  border-bottom: 1px solid rgba(183, 255, 42, 0.5);
  padding-bottom: 2px;
}

.page-products .db-rail-cta:hover {
  color: var(--paper);
  border-bottom-color: var(--paper);
}

/* ---------- 区块骨架 ---------- */
.page-products .db-block {
  padding: clamp(26px, 4vw, 42px) 0;
  border-top: 1px solid var(--line);
}

.page-products .db-block:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-products .db-block-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 18px;
}

.page-products .db-block-head h2 {
  font-size: clamp(26px, 3.6vw, 38px);
  line-height: 1.12;
}

.page-products .db-block-head .section-num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--amber);
  letter-spacing: 0.08em;
  flex: none;
}

.page-products .db-intro {
  max-width: 66ch;
  font-size: 16px;
  color: rgba(242, 231, 207, 0.8);
}

/* ---------- 01 摘要 ---------- */
.page-products .db-summary-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 36px);
  align-items: start;
}

.page-products .db-plain {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .db-plain li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist);
  border-left: 2px solid rgba(255, 157, 46, 0.45);
}

.page-products .db-plain li::before {
  content: "";
  position: absolute;
  left: -2px;
  top: 0.55em;
  width: 10px;
  height: 2px;
  background: var(--amber);
}

.page-products .db-plain strong {
  margin-right: 6px;
  color: var(--paper);
}

.page-products .db-plain-tight {
  gap: 10px;
  margin-top: 14px;
}

/* 图片 */
.page-products .figure {
  margin: 0;
}

.page-products .figure-frame {
  display: block;
  border: 2px solid var(--line-strong);
  background: var(--night-deep);
  overflow: hidden;
  box-shadow: 8px 8px 0 rgba(5, 15, 29, 0.72);
}

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

.page-products .figure-caption {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--mist);
  padding-top: 10px;
}

.page-products .db-figure-square {
  margin-top: clamp(20px, 3vw, 32px);
  max-width: 520px;
}

.page-products .db-figure-wide {
  margin-top: 4px;
}

/* ---------- 02 字段矩阵 ---------- */
.page-products .db-matrix {
  border: 2px solid var(--line-strong);
  background: rgba(18, 52, 90, 0.3);
  margin-top: 20px;
}

.page-products .db-matrix-head {
  display: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--amber);
  background: rgba(5, 15, 29, 0.6);
  padding: 10px 16px;
  border-bottom: 1px solid var(--line);
}

.page-products .db-mrow {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 4px 14px;
  padding: 15px 16px;
  border-top: 1px solid var(--line);
  transition: background 0.18s ease;
}

.page-products .db-mrow:first-of-type {
  border-top: 0;
}

.page-products .db-mrow:hover {
  background: rgba(183, 255, 42, 0.07);
}

.page-products .db-key {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--volt);
  white-space: nowrap;
}

.page-products .db-desc {
  grid-column: 1 / -1;
  grid-row: 2;
  font-size: 15px;
  line-height: 1.66;
  color: var(--mist);
}

.page-products .db-mrow .tag {
  grid-column: 2;
  grid-row: 1;
  align-self: start;
  justify-self: end;
}

/* 折叠说明 */
.page-products .db-fold {
  margin-top: 18px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--amber);
  background: rgba(18, 52, 90, 0.24);
}

.page-products .db-fold summary {
  cursor: pointer;
  padding: 12px 16px;
  font-family: var(--font-display);
  font-size: 17px;
  letter-spacing: 0.02em;
  color: var(--paper);
  list-style: none;
  display: flex;
  align-items: center;
  gap: 10px;
}

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

.page-products .db-fold summary::before {
  content: "+";
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--amber);
}

.page-products .db-fold[open] summary::before {
  content: "–";
}

.page-products .db-fold summary:hover {
  color: var(--volt);
}

.page-products .db-fold-body {
  padding: 0 16px 14px;
}

.page-products .db-fold-body p {
  margin: 0;
  font-size: 15px;
}

/* ---------- 03 适配 ---------- */
.page-products .db-adapt {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 34px);
  margin-top: 22px;
  align-items: start;
}

.page-products .db-adapt-phone {
  max-width: 300px;
}

.page-products .db-phone {
  border: 3px solid var(--line-strong);
  border-radius: 22px;
  background: var(--night-deep);
  padding: 8px;
  box-shadow: 8px 8px 0 rgba(183, 255, 42, 0.16);
  overflow: hidden;
}

.page-products .db-phone img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 14px;
  object-fit: cover;
}

.page-products .db-phone-note {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--mist);
  margin: 12px 0 0;
}

.page-products .db-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 1px;
  background: var(--line-strong);
  border: 2px solid var(--line-strong);
  margin-bottom: 20px;
}

.page-products .db-stats .stat {
  background: var(--night-deep);
  padding: 14px 14px 12px;
  display: grid;
  gap: 4px;
}

.page-products .db-stats .stat-value {
  font-family: var(--font-display);
  font-size: 34px;
  line-height: 1;
  color: var(--volt);
}

.page-products .db-stats .stat-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

/* ---------- 04 版本时间轴 ---------- */
.page-products .db-track {
  list-style: none;
  margin: 22px 0 0;
  padding: 4px 2px 18px;
  display: flex;
  gap: 12px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  scrollbar-color: var(--amber) rgba(169, 183, 198, 0.16);
  scrollbar-width: thin;
  border-top: 1px dashed var(--line-strong);
  padding-top: 18px;
}

.page-products .db-track::-webkit-scrollbar {
  height: 6px;
}

.page-products .db-track::-webkit-scrollbar-thumb {
  background: var(--amber);
}

.page-products .db-node {
  flex: 0 0 min(232px, 76vw);
  scroll-snap-align: start;
  position: relative;
  border: 1px solid var(--line-strong);
  border-top: 3px solid var(--amber);
  background: linear-gradient(180deg, rgba(18, 52, 90, 0.55), rgba(5, 15, 29, 0.55));
  padding: 14px 14px 16px;
  display: grid;
  gap: 6px;
  align-content: start;
}

.page-products .db-node-idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-products .db-node-title {
  font-family: var(--font-display);
  font-size: 19px;
  line-height: 1.2;
  color: var(--paper);
}

.page-products .db-node-text {
  font-size: 13px;
  line-height: 1.62;
  color: var(--mist);
}

.page-products .db-version-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 32px);
  margin-top: 24px;
  align-items: start;
}

.page-products .db-version-note h3 {
  font-size: 21px;
  margin-bottom: 6px;
}

.page-products .db-version-foot {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 14px;
}

/* ---------- 05 场景 ---------- */
.page-products .db-scenes {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: 22px;
}

.page-products .db-scene {
  border: 2px solid var(--line-strong);
  background: var(--night-deep);
  box-shadow: 6px 6px 0 rgba(183, 255, 42, 0.12);
  padding: 18px 18px 16px;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.page-products .db-scene:hover {
  transform: translate(-3px, -3px);
  box-shadow: 9px 9px 0 rgba(183, 255, 42, 0.2);
  border-color: var(--volt);
}

.page-products .db-scene-kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--amber);
  margin: 0 0 10px;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--line);
}

.page-products .db-scene h3 {
  font-size: 20px;
  line-height: 1.24;
  margin-bottom: 8px;
}

.page-products .db-scene p:last-child {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
}

/* ---------- 06 三步 ---------- */
.page-products .db-steps {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line-strong);
  border: 2px solid var(--line-strong);
  counter-reset: none;
}

.page-products .db-step {
  background: var(--night);
  padding: 20px 18px 18px;
  display: grid;
  gap: 8px;
  align-content: start;
  position: relative;
}

.page-products .db-step-num {
  font-family: var(--font-display);
  font-size: 46px;
  line-height: 0.85;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--volt);
  letter-spacing: -0.02em;
}

.page-products .db-step h3 {
  font-size: 20px;
  line-height: 1.24;
}

.page-products .db-step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
}

/* 支持区 */
.page-products .db-support {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 32px);
  margin-top: clamp(24px, 4vw, 40px);
  padding-top: clamp(22px, 3vw, 32px);
  border-top: 1px solid var(--line);
}

.page-products .db-support-main h3 {
  font-size: 24px;
  margin-bottom: 10px;
}

.page-products .db-support-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.page-products .db-support-side {
  border-left: 3px solid var(--teal);
  padding-left: 18px;
  background: linear-gradient(90deg, rgba(14, 79, 92, 0.24), transparent 70%);
}

.page-products .db-side-title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--volt);
  margin: 0 0 10px;
}

.page-products .db-side-text {
  font-size: 14px;
  line-height: 1.74;
}

.page-products .db-links {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-products .db-links a {
  display: inline-block;
  font-size: 14px;
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 2px;
}

.page-products .db-links a:hover,
.page-products .db-links a:focus-visible {
  color: var(--volt);
  border-bottom-color: var(--volt);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-products .db-matrix-head {
    display: grid;
    grid-template-columns: 168px minmax(0, 1fr) 104px;
    gap: 14px;
  }

  .page-products .db-mrow {
    grid-template-columns: 168px minmax(0, 1fr) 104px;
    gap: 14px;
    align-items: baseline;
  }

  .page-products .db-desc {
    grid-column: auto;
    grid-row: auto;
  }

  .page-products .db-mrow .tag {
    grid-column: auto;
    grid-row: auto;
    justify-self: start;
  }

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

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

@media (min-width: 860px) {
  .page-products .db-summary-grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  }

  .page-products .db-adapt {
    grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
  }

  .page-products .db-version-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  }

  .page-products .db-support {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  }
}

@media (min-width: 1000px) {
  .page-products .db-head-grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(268px, 0.78fr);
    align-items: end;
  }

  .page-products .db-shell {
    grid-template-columns: var(--db-rail) minmax(0, 1fr);
    align-items: start;
  }

  .page-products .db-rail {
    position: sticky;
    top: calc(var(--header-h) + 26px);
    align-self: start;
    padding-right: 10px;
  }
}

@media (min-width: 1240px) {
  .page-products .db-scenes {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .db-scene,
  .page-products .db-rail-list a,
  .page-products .db-mrow {
    transition: none;
  }

  .page-products .db-scene:hover {
    transform: none;
  }
}