.page-products {
  --pg-edge: clamp(18px, 5vw, 52px);
  --pg-gap: clamp(20px, 4vw, 40px);
  --pg-paper-ink: #0a1030;
  background: var(--night);
  color: var(--text);
  padding-bottom: clamp(48px, 8vw, 88px);
}

/* ---------- 面包屑 ---------- */
.page-products .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 22px 0 4px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
}
.page-products .crumbs__link {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.page-products .crumbs__link:hover,
.page-products .crumbs__link:focus-visible {
  color: var(--amber);
  border-bottom-color: var(--amber);
  outline: none;
}
.page-products .crumbs__sep {
  color: rgba(243, 239, 228, 0.28);
}
.page-products .crumbs__now {
  color: var(--paper);
  font-size: 12px;
  letter-spacing: 0.06em;
}

/* ---------- 首屏 ---------- */
.page-products .biz-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  padding: clamp(26px, 5vw, 48px) 0 0;
}
.page-products .biz-hero__lead {
  min-width: 0;
}
.page-products .biz-hero .eyebrow {
  color: var(--amber);
}
.page-products .biz-hero__title {
  font-family: var(--narrow);
  font-weight: 800;
  font-size: clamp(36px, 7.6vw, 74px);
  line-height: 0.98;
  letter-spacing: -0.015em;
  margin: 16px 0 0;
}
.page-products .biz-hero__title em {
  font-style: normal;
  color: var(--amber);
  box-shadow: inset 0 -0.12em 0 rgba(240, 168, 60, 0.22);
}
.page-products .biz-hero__lede {
  max-width: 46ch;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: clamp(15px, 2.1vw, 17px);
  line-height: 1.78;
}
.page-products .biz-hero__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}
.page-products .biz-hero__side {
  display: grid;
  gap: 14px;
  min-width: 0;
}
.page-products .biz-keys {
  list-style: none;
  margin: 0;
  padding: 16px 18px;
  display: grid;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  background: rgba(16, 24, 56, 0.6);
}
.page-products .biz-keys li {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--text);
}
.page-products .biz-keys .mono {
  color: var(--amber);
  font-size: 11px;
  padding-top: 3px;
}

/* ---------- 图形容器 ---------- */
.page-products .biz-figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  overflow: hidden;
  background: var(--ink-2);
}
.page-products .biz-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}
.page-products .biz-figure--hero {
  aspect-ratio: 2 / 1;
}
.page-products .biz-figure--hero img {
  height: 100%;
}
.page-products .biz-figure--pc {
  aspect-ratio: 4 / 3;
}
.page-products .biz-figure--pc img {
  height: 100%;
}
.page-products .biz-figure--ios {
  aspect-ratio: 3 / 2;
}
.page-products .biz-figure--ios img {
  height: 100%;
}
.page-products .biz-figure--ver {
  aspect-ratio: 2 / 1;
}
.page-products .biz-figure--ver img {
  height: 100%;
}
.page-products .biz-figure__cap {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 6px 10px;
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: var(--paper);
  background: rgba(5, 8, 26, 0.78);
  border-top-right-radius: var(--r-s);
}

/* ---------- 概览条 ---------- */
.page-products .biz-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: clamp(32px, 6vw, 56px);
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}
.page-products .biz-stat {
  display: grid;
  gap: 6px;
  min-width: 0;
  padding: 18px 8px 18px 0;
}
.page-products .biz-stat + .biz-stat {
  border-left: 1px solid var(--line);
  padding-left: 14px;
}
.page-products .biz-stat__num {
  font-family: var(--narrow);
  font-weight: 800;
  font-size: clamp(20px, 4.4vw, 32px);
  line-height: 1;
  color: var(--paper);
  letter-spacing: -0.01em;
}
.page-products .biz-stat__num--wide {
  font-family: var(--mono);
  font-size: clamp(15px, 3vw, 24px);
  font-weight: 600;
  padding-top: 4px;
  color: var(--amber);
}
.page-products .biz-stat__label {
  font-size: 11.5px;
  line-height: 1.4;
  color: var(--muted);
  letter-spacing: 0.04em;
}

/* ---------- 通用章节 ---------- */
.page-products .biz-section {
  padding-top: clamp(48px, 8vw, 88px);
}
.page-products .biz-section__head {
  display: grid;
  gap: 10px;
  max-width: 60ch;
  margin-bottom: clamp(24px, 4vw, 36px);
}
.page-products .biz-section__head .eyebrow {
  color: var(--celadon);
}
.page-products .biz-section__head h2 {
  margin: 0;
  font-family: var(--narrow);
  font-weight: 800;
  font-size: clamp(25px, 4.6vw, 40px);
  line-height: 1.08;
  letter-spacing: -0.01em;
}
.page-products .biz-section__head p {
  margin: 0;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.75;
}

/* ---------- 支持清单 ---------- */
.page-products .biz-lines {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
}
.page-products .biz-line {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 10px 16px;
  padding: 22px 8px 22px 0;
  border-bottom: 1px solid var(--line);
  transition: background-color 0.2s ease;
}
.page-products .biz-line:hover {
  background: rgba(240, 168, 60, 0.05);
}
.page-products .biz-line__no {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--amber);
  padding-top: 6px;
}
.page-products .biz-line__body {
  min-width: 0;
}
.page-products .biz-line__title {
  margin: 0 0 8px;
  font-family: var(--narrow);
  font-weight: 800;
  font-size: clamp(19px, 3vw, 25px);
  letter-spacing: 0.005em;
  line-height: 1.2;
}
.page-products .biz-line__desc {
  margin: 0;
  max-width: 58ch;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.75;
}
.page-products .biz-line__note {
  grid-column: 2;
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--celadon);
}

/* ---------- 双栏错位 ---------- */
.page-products .biz-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
}
.page-products .biz-card {
  min-width: 0;
  padding: clamp(20px, 3.6vw, 32px);
  border: 1px solid var(--line);
  border-radius: var(--r-l);
  background: linear-gradient(180deg, var(--ink-3), var(--ink-2));
}
.page-products .biz-card--brick {
  background: linear-gradient(180deg, rgba(194, 71, 45, 0.22), var(--ink-2) 62%);
  border-color: rgba(194, 71, 45, 0.42);
}
.page-products .biz-card .eyebrow {
  color: var(--amber);
}
.page-products .biz-card__title {
  margin: 12px 0 14px;
  font-family: var(--narrow);
  font-weight: 800;
  font-size: clamp(23px, 3.8vw, 33px);
  line-height: 1.1;
  letter-spacing: -0.01em;
}
.page-products .biz-card__text {
  margin: 0;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.78;
}
.page-products .biz-bullets {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-products .biz-bullets li {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  font-size: 14px;
  line-height: 1.65;
  color: var(--text);
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--line);
}
.page-products .biz-bullets li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}
.page-products .biz-bullets .mono {
  font-size: 11px;
  color: var(--amber);
  padding-top: 3px;
}
.page-products .biz-card__link {
  display: inline-block;
  margin-top: 20px;
  font-size: 13.5px;
}

/* ---------- iOS 步骤 ---------- */
.page-products .biz-steps {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
}
.page-products .biz-step {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 13px 0;
  border-top: 1px dashed var(--line);
  font-size: 14px;
  line-height: 1.65;
  color: var(--text);
}
.page-products .biz-step__no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  font-size: 11px;
  color: var(--paper);
  background: rgba(5, 8, 26, 0.55);
}

/* ---------- 版本记录 ---------- */
.page-products .biz-version {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
}
.page-products .biz-sheet {
  min-width: 0;
  padding: clamp(18px, 3.2vw, 28px);
  border-radius: var(--r-m);
  background: var(--paper);
  color: var(--pg-paper-ink);
  box-shadow: 0 28px 64px -34px rgba(0, 0, 0, 0.95);
}
.page-products .biz-sheet table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
  font-size: 13px;
  line-height: 1.65;
}
.page-products .biz-sheet th {
  text-align: left;
  padding: 0 8px 10px 0;
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: rgba(10, 16, 48, 0.55);
  border-bottom: 1px solid rgba(10, 16, 48, 0.28);
}
.page-products .biz-sheet th:nth-child(1) {
  width: 24%;
}
.page-products .biz-sheet th:nth-child(2) {
  width: 27%;
}
.page-products .biz-sheet td {
  padding: 12px 8px 12px 0;
  vertical-align: top;
  border-bottom: 1px solid rgba(10, 16, 48, 0.13);
  overflow-wrap: anywhere;
}
.page-products .biz-sheet tr:last-child td {
  border-bottom: 0;
  padding-bottom: 0;
}
.page-products .biz-sheet td.mono {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--pg-paper-ink);
}
.page-products .biz-sheet tbody tr:first-child td.mono {
  color: var(--brick);
}

/* ---------- 场景 ---------- */
.page-products .biz-scenes {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}
.page-products .biz-scene {
  min-width: 0;
  padding: 22px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--amber);
  border-radius: 0 var(--r-m) var(--r-m) 0;
  background: rgba(10, 16, 48, 0.72);
}
.page-products .biz-scene:nth-child(2) {
  border-left-color: var(--celadon);
}
.page-products .biz-scene:nth-child(3) {
  border-left-color: var(--brick);
}
.page-products .biz-scene h3 {
  margin: 14px 0 10px;
  font-family: var(--narrow);
  font-weight: 800;
  font-size: clamp(17px, 2.6vw, 20px);
  line-height: 1.3;
}
.page-products .biz-scene p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.72;
}

/* ---------- 开始使用 ---------- */
.page-products .biz-start {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  padding-top: 8px;
  border-top: 1px solid var(--line-strong);
}
.page-products .biz-start__head .eyebrow {
  color: var(--amber);
}
.page-products .biz-start__head h2 {
  margin: 12px 0 14px;
  font-family: var(--narrow);
  font-weight: 800;
  font-size: clamp(25px, 4.4vw, 38px);
  line-height: 1.08;
  letter-spacing: -0.01em;
}
.page-products .biz-start__head p {
  margin: 0;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.75;
}
.page-products .biz-start__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}
.page-products .biz-start__steps li {
  position: relative;
  min-width: 0;
  padding-left: 46px;
}
.page-products .biz-start__no {
  position: absolute;
  left: 0;
  top: 2px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--r-s);
  background: var(--amber);
  color: var(--night);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.page-products .biz-start__steps h3 {
  margin: 0 0 8px;
  font-family: var(--narrow);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.3;
}
.page-products .biz-start__steps p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.72;
}

/* ---------- 收尾 ---------- */
.page-products .biz-closing {
  margin-top: clamp(48px, 8vw, 88px);
  border: 1px solid var(--line);
  border-radius: var(--r-l);
  overflow: hidden;
  background: linear-gradient(160deg, var(--ink-3), var(--ink) 72%);
}
.page-products .biz-closing__figure {
  margin: 0;
  aspect-ratio: 2 / 1;
  overflow: hidden;
}
.page-products .biz-closing__figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.page-products .biz-closing__body {
  padding: clamp(22px, 4vw, 40px);
}
.page-products .biz-closing__body .eyebrow {
  color: var(--amber);
}
.page-products .biz-closing__body h2 {
  margin: 12px 0 14px;
  font-family: var(--narrow);
  font-weight: 800;
  font-size: clamp(24px, 4.2vw, 36px);
  line-height: 1.1;
  letter-spacing: -0.01em;
}
.page-products .biz-closing__body p {
  margin: 0;
  max-width: 58ch;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.78;
}
.page-products .biz-closing__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

/* ---------- 断点：平板与桌面 ---------- */
@media (min-width: 720px) {
  .page-products .biz-scenes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }
  .page-products .biz-start {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 40px;
  }
  .page-products .biz-closing {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: stretch;
  }
  .page-products .biz-closing__figure {
    aspect-ratio: auto;
    height: 100%;
    min-height: 260px;
  }
}

@media (min-width: 900px) {
  .page-products .biz-hero {
    grid-template-columns: minmax(0, 1.34fr) minmax(0, 0.66fr);
    gap: 48px;
    align-items: start;
  }
  .page-products .biz-hero__side {
    padding-top: 12px;
  }
  .page-products .biz-line {
    grid-template-columns: 62px minmax(0, 1.2fr) minmax(0, 0.5fr);
    padding: 28px 12px 28px 0;
    align-items: start;
  }
  .page-products .biz-line__note {
    grid-column: 3;
    text-align: right;
    color: var(--muted);
    padding-top: 8px;
  }
  .page-products .biz-split {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 30px;
    align-items: start;
  }
  .page-products .biz-split--reverse .biz-figure {
    order: 1;
  }
  .page-products .biz-split--reverse .biz-card {
    order: 2;
  }
  .page-products .biz-split > *:last-child {
    transform: translateY(26px);
  }
  .page-products .biz-split--reverse > *:last-child {
    transform: translateY(18px);
  }
  .page-products .biz-version {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 30px;
    align-items: start;
  }
  .page-products .biz-scenes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-products .biz-scene:nth-child(2) {
    transform: translateY(18px);
  }
  .page-products .biz-closing__figure {
    min-height: 320px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .biz-split > *:last-child,
  .page-products .biz-scene:nth-child(2) {
    transform: none;
  }
  .page-products .biz-line,
  .page-products .crumbs__link {
    transition: none;
  }
}
<<<END>>>