.page-products {
  --bt-block: clamp(52px, 7.5vw, 92px);
  display: block;
}

/* ---------- 首屏 ---------- */
.page-products .bt-hero {
  display: grid;
  gap: 18px;
  padding: 20px 0 8px;
}

.page-products .bt-hero__frame {
  position: relative;
  padding: 30px 22px 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  background:
    radial-gradient(130% 150% at 8% -10%, rgba(18, 59, 46, 0.92) 0%, rgba(11, 15, 13, 0.96) 60%),
    var(--ink);
  overflow: hidden;
}

.page-products .bt-hero__frame::before,
.page-products .bt-hero__frame::after {
  content: "";
  position: absolute;
  width: 26px;
  height: 26px;
  border: 1px solid var(--gold);
  opacity: 0.7;
  pointer-events: none;
}

.page-products .bt-hero__frame::before {
  top: 12px;
  left: 12px;
  border-right: 0;
  border-bottom: 0;
  border-radius: 8px 0 0 0;
}

.page-products .bt-hero__frame::after {
  right: 12px;
  bottom: 12px;
  border-top: 0;
  border-left: 0;
  border-radius: 0 0 8px 0;
}

.page-products .bt-hero__eyebrow {
  margin: 0 0 16px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-products .bt-hero h1 {
  margin: 0 0 16px;
  max-width: 22em;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(27px, 6vw, 50px);
  line-height: 1.14;
  letter-spacing: -0.005em;
  color: var(--paper);
}

.page-products .bt-hero__lead {
  margin: 0;
  max-width: 44em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.82;
  color: rgba(244, 241, 233, 0.78);
}

.page-products .bt-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-products .bt-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  padding: 18px 16px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-l);
  background: linear-gradient(180deg, rgba(18, 59, 46, 0.5), rgba(11, 15, 13, 0.9));
  align-content: start;
}

.page-products .bt-hero__stats-title {
  grid-column: 1 / -1;
  margin: 0 0 4px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--steel);
}

.page-products .bt-hero__stat {
  display: grid;
  gap: 2px;
  padding: 12px 13px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-m);
  background: rgba(11, 15, 13, 0.55);
}

.page-products .bt-hero__stat .stat__label {
  font-size: 12px;
  color: var(--steel);
  letter-spacing: 0.04em;
}

.page-products .bt-hero__stat .stat__value {
  font-family: var(--font-num);
  font-size: clamp(24px, 4.4vw, 32px);
  font-weight: 600;
  line-height: 1.1;
  color: var(--gold-bright);
  font-variant-numeric: tabular-nums;
}

.page-products .bt-hero__stat .stat__unit {
  font-size: 12px;
  color: rgba(244, 241, 233, 0.56);
}

@media (min-width: 920px) {
  .page-products .bt-hero {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    gap: 24px;
    align-items: stretch;
  }

  .page-products .bt-hero__frame {
    padding: 40px 38px 36px;
  }

  .page-products .bt-hero__stats {
    padding: 24px 22px;
  }
}

/* ---------- 锚点导航 ---------- */
.page-products .bt-jump {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
  margin: 26px 0 0;
  padding: 12px 0;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  font-size: 13px;
}

.page-products .bt-jump__label {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--steel);
  padding-right: 4px;
  border-right: 1px solid var(--line-soft);
}

.page-products .bt-jump a {
  position: relative;
  color: rgba(244, 241, 233, 0.7);
  text-decoration: none;
  padding-bottom: 2px;
  transition: color var(--t);
}

.page-products .bt-jump a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: var(--gold-bright);
  transition: width var(--t);
}

.page-products .bt-jump a:hover,
.page-products .bt-jump a[aria-current="location"] {
  color: var(--gold-bright);
}

.page-products .bt-jump a:hover::after,
.page-products .bt-jump a[aria-current="location"]::after {
  width: 100%;
}

/* ---------- 通用区块间距 ---------- */
.page-products .section {
  padding-top: var(--bt-block);
}

.page-products .section__lead a {
  color: var(--gold-bright);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: border-color var(--t), color var(--t);
}

.page-products .section__lead a:hover {
  border-color: var(--gold-bright);
}

/* ---------- 图片 ---------- */
.page-products .bt-media {
  margin: 26px 0 0;
  width: 100%;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-l);
  overflow: hidden;
  background: var(--green-deep);
}

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

.page-products .bt-media .media__cap,
.page-products .bt-media figcaption {
  display: block;
  padding: 10px 16px 12px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--steel);
  border-top: 1px solid var(--line-soft);
  background: rgba(11, 15, 13, 0.6);
}

@media (min-width: 920px) {
  .page-products .bt-media--lead img {
    aspect-ratio: 16 / 9;
  }

  .page-products .bt-media--short img {
    aspect-ratio: 5 / 2;
  }
}

/* ---------- 五件工具 ---------- */
.page-products .bt-tools {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: 24px;
}

.page-products .bt-tool {
  position: relative;
  padding: 20px 18px 18px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-m);
  background: linear-gradient(180deg, rgba(14, 44, 34, 0.85), rgba(11, 15, 13, 0.72));
  transition: border-color var(--t), transform var(--t);
}

.page-products .bt-tool:hover {
  border-color: var(--line-strong);
  transform: translateY(-2px);
}

.page-products .bt-tool__index {
  display: inline-block;
  margin-bottom: 10px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-products .bt-tool__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-products .bt-tool__text {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(244, 241, 233, 0.72);
}

.page-products .bt-tool__out {
  margin: 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line-soft);
  font-size: 13px;
  line-height: 1.7;
  color: rgba(244, 241, 233, 0.6);
}

.page-products .bt-tool__outk {
  display: inline-block;
  margin-right: 8px;
  padding: 1px 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

@media (min-width: 640px) {
  .page-products .bt-tools {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-products .bt-tools {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-products .bt-tool--lead {
    grid-column: span 2;
    padding: 26px 24px 22px;
  }

  .page-products .bt-tool--lead .bt-tool__text {
    font-size: 15px;
    max-width: 34em;
  }
}

/* ---------- 三步路径 ---------- */
.page-products .bt-steps {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
}

.page-products .bt-step {
  position: relative;
  padding-left: 52px;
  padding-bottom: 22px;
}

.page-products .bt-step::before {
  content: "";
  position: absolute;
  left: 17px;
  top: 40px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, var(--line-strong), var(--line-soft));
}

.page-products .bt-step:last-child {
  padding-bottom: 0;
}

.page-products .bt-step:last-child::before {
  display: none;
}

.page-products .bt-step__node {
  position: absolute;
  left: 0;
  top: 4px;
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border: 1px solid var(--gold);
  border-radius: var(--radius-pill);
  background: var(--green);
  font-family: var(--font-num);
  font-size: 13px;
  color: var(--gold-bright);
  box-shadow: 0 0 0 4px rgba(11, 15, 13, 0.9);
}

.page-products .bt-step__panel {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-m);
  background: linear-gradient(180deg, rgba(18, 59, 46, 0.55), rgba(11, 15, 13, 0.7));
  padding: 18px 16px 16px;
  transition: border-color var(--t);
}

.page-products .bt-step__panel:hover {
  border-color: var(--line-strong);
}

.page-products .bt-step__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--paper);
}

.page-products .bt-step__text {
  margin: 0 0 14px;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(244, 241, 233, 0.74);
}

.page-products .bt-step__cond {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 9px 12px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-pill);
  background: rgba(11, 15, 13, 0.6);
  font-size: 13px;
  color: rgba(244, 241, 233, 0.8);
}

.page-products .bt-step__cond span {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--steel);
}

.page-products .bt-step__more {
  margin-top: 14px;
  border-top: 1px dashed var(--line-soft);
  padding-top: 12px;
}

.page-products .bt-step__more .disclosure__summary {
  cursor: pointer;
  font-size: 13px;
  color: var(--gold);
  list-style: none;
  transition: color var(--t);
}

.page-products .bt-step__more .disclosure__summary::-webkit-details-marker {
  display: none;
}

.page-products .bt-step__more .disclosure__summary::before {
  content: "＋ ";
  font-family: var(--font-num);
}

.page-products .bt-step__more[open] .disclosure__summary::before {
  content: "－ ";
}

.page-products .bt-step__more .disclosure__summary:hover {
  color: var(--gold-bright);
}

.page-products .bt-step__more .disclosure__body {
  padding-top: 10px;
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(244, 241, 233, 0.68);
}

.page-products .bt-step__more .disclosure__body p {
  margin: 0 0 10px;
}

.page-products .bt-step__eg {
  display: inline-block;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  background: rgba(18, 59, 46, 0.6);
  font-size: 12.5px;
  color: var(--gold-bright);
}

@media (min-width: 920px) {
  .page-products .bt-step {
    padding-left: 74px;
    padding-bottom: 26px;
  }

  .page-products .bt-step::before {
    left: 21px;
  }

  .page-products .bt-step__node {
    width: 44px;
    height: 44px;
    font-size: 14px;
  }

  .page-products .bt-step__panel {
    padding: 24px 26px 22px;
  }
}

/* ---------- 筛选条件 ---------- */
.page-products .bt-cond-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  margin-top: 26px;
}

.page-products .bt-table-cap {
  caption-side: top;
  padding: 0 0 12px;
  text-align: left;
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--steel);
}

.page-products .table th,
.page-products .table td {
  font-size: 13.5px;
  line-height: 1.7;
  vertical-align: top;
  padding: 12px 14px;
}

.page-products .table thead th {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold);
  white-space: nowrap;
}

.page-products .table tbody th[scope="row"] {
  color: var(--paper);
  font-weight: 600;
  white-space: nowrap;
}

.page-products .table td {
  color: rgba(244, 241, 233, 0.72);
}

.page-products .bt-cond-table,
.page-products .bt-series-table {
  margin-top: 26px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-m);
}

.page-products .bt-cond-table {
  margin-top: 0;
}

.page-products .bt-cond-media {
  margin-top: 0;
}

@media (min-width: 1000px) {
  .page-products .bt-cond-grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    align-items: start;
  }
}

/* ---------- 编号分档 ---------- */
.page-products .bt-series-table .table tbody tr:hover th[scope="row"],
.page-products .bt-series-table .table tbody tr:hover td {
  color: var(--gold-bright);
}

.page-products .bt-series-table .table tbody tr:hover {
  background: rgba(198, 161, 91, 0.06);
}

.page-products .bt-series-table .table tfoot th,
.page-products .bt-series-table .table tfoot td {
  border-top: 1px solid var(--line);
  color: var(--paper);
  font-weight: 600;
}

/* ---------- 档位对照 ---------- */
.page-products .bt-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: 28px;
}

.page-products .bt-band__col {
  padding: 22px 20px 18px;
  border-radius: var(--radius-l);
  border: 1px solid var(--line-soft);
  background: linear-gradient(180deg, rgba(14, 44, 34, 0.8), rgba(11, 15, 13, 0.78));
}

.page-products .bt-band__col--cool {
  border-top: 3px solid var(--steel);
}

.page-products .bt-band__col--gold {
  border-top: 3px solid var(--gold);
}

.page-products .bt-band__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 14px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line-soft);
}

.page-products .bt-band__count {
  margin: 0;
  font-family: var(--font-num);
  font-size: 13px;
  color: var(--steel);
}

.page-products .bt-band__count .num {
  font-size: 26px;
  font-weight: 600;
  color: var(--paper);
  margin-right: 4px;
}

.page-products .bt-band__col--gold .bt-band__count .num {
  color: var(--gold-bright);
}

.page-products .bt-band__list {
  margin: 0;
  padding: 0;
}

.page-products .bt-band__row {
  padding: 14px 0;
  border-bottom: 1px dashed var(--line-soft);
}

.page-products .bt-band__row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-products .bt-band__row dt {
  margin-bottom: 6px;
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--steel);
}

.page-products .bt-band__row dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: rgba(244, 241, 233, 0.78);
}

@media (min-width: 860px) {
  .page-products .bt-band {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .page-products .bt-band__col {
    padding: 26px 24px 20px;
  }
}

/* ---------- 使用场景 ---------- */
.page-products .bt-scenes {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: 26px;
}

.page-products .bt-scene {
  padding: 20px 18px;
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--green);
  border-radius: var(--radius-m);
  background: rgba(18, 59, 46, 0.32);
  transition: border-color var(--t), background var(--t);
}

.page-products .bt-scene:hover {
  border-color: var(--line-strong);
  background: rgba(18, 59, 46, 0.5);
}

.page-products .bt-scene__no {
  display: block;
  margin-bottom: 10px;
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--cinnabar);
}

.page-products .bt-scene__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--paper);
}

.page-products .bt-scene__text {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.82;
  color: rgba(244, 241, 233, 0.72);
}

.page-products .bt-scene__text a {
  color: var(--gold-bright);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: border-color var(--t);
}

.page-products .bt-scene__text a:hover {
  border-color: var(--gold-bright);
}

.page-products .bt-scene__hint {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--steel);
}

@media (min-width: 780px) {
  .page-products .bt-scenes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }
}

/* ---------- 版本时间线 ---------- */
.page-products .bt-timeline {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
}

.page-products .bt-tl {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  padding: 0 0 22px 22px;
  border-left: 1px solid var(--line);
}

.page-products .bt-tl:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-products .bt-tl::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 6px;
  width: 9px;
  height: 9px;
  border-radius: var(--radius-pill);
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(11, 15, 13, 0.9);
}

.page-products .bt-tl:last-child::before {
  background: var(--cinnabar);
}

.page-products .bt-tl__node {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
}

.page-products .bt-tl__ver {
  padding: 3px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold-bright);
  background: rgba(18, 59, 46, 0.6);
}

.page-products .bt-tl__when {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--steel);
}

.page-products .bt-tl__body {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-m);
  padding: 16px 16px 14px;
  background: rgba(11, 15, 13, 0.5);
  transition: border-color var(--t);
}

.page-products .bt-tl__body:hover {
  border-color: var(--line-strong);
}

.page-products .bt-tl__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 16.5px;
  font-weight: 700;
  color: var(--paper);
}

.page-products .bt-tl__body p {
  margin: 0;
  font-size: 13.8px;
  line-height: 1.82;
  color: rgba(244, 241, 233, 0.7);
}

@media (min-width: 860px) {
  .page-products .bt-tl {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 22px;
    align-items: start;
    padding-left: 30px;
  }

  .page-products .bt-tl__node {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding-top: 2px;
  }
}

/* ---------- 收尾 ---------- */
.page-products .bt-cta {
  padding-bottom: 70px;
}

.page-products .bt-cta__inner {
  position: relative;
  padding: 32px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  background:
    linear-gradient(115deg, rgba(18, 59, 46, 0.95) 0%, rgba(11, 15, 13, 0.95) 58%),
    var(--ink);
  overflow: hidden;
}

.page-products .bt-cta__inner::after {
  content: "";
  position: absolute;
  top: -40%;
  right: -12%;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(198, 161, 91, 0.18) 0%, rgba(198, 161, 91, 0) 68%);
  pointer-events: none;
}

.page-products .bt-cta__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(21px, 3.4vw, 30px);
  font-weight: 800;
  line-height: 1.2;
  color: var(--paper);
}

.page-products .bt-cta__text {
  margin: 0;
  max-width: 40em;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(244, 241, 233, 0.72);
}

.page-products .bt-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

@media (min-width: 920px) {
  .page-products .bt-cta__inner {
    padding: 46px 44px;
  }

  .page-products .bt-cta {
    padding-bottom: 96px;
  }
}