.page-products {
  --pp-gap: clamp(16px, 3.4vw, 26px);
  --pp-pad: clamp(16px, 3vw, 24px);
  --pp-radius: var(--radius);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-products .crumbs {
  padding-top: clamp(14px, 2.6vw, 24px);
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--steel);
}

.page-products .crumbs a {
  color: var(--steel);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-products .crumbs a:hover,
.page-products .crumbs a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-products .crumbs__sep {
  margin-inline: 8px;
  color: var(--line);
}

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

/* ---------- 章节通用 ---------- */
.page-products .section {
  padding-block: clamp(36px, 6vw, 72px);
}

.page-products .chapter-band {
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-products .section-lead {
  max-width: 62ch;
  margin: 0 0 clamp(18px, 3vw, 28px);
  color: var(--steel);
  font-size: 16px;
  line-height: 1.85;
}

/* ---------- 首屏拼贴 ---------- */
.page-products .app-hero {
  padding-top: clamp(18px, 3vw, 32px);
}

.page-products .app-hero__grid {
  display: grid;
  gap: var(--pp-gap);
}

.page-products .app-hero__kicker {
  margin: 0 0 12px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .22em;
  color: var(--cyan);
}

.page-products .app-hero__title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 8.4vw, 68px);
  line-height: 1.06;
  letter-spacing: -.01em;
  color: var(--fog);
  text-wrap: balance;
}

.page-products .app-hero__lead {
  margin: 0 0 24px;
  max-width: 48ch;
  color: var(--steel);
  font-size: clamp(15px, 2.6vw, 18px);
  line-height: 1.85;
}

.page-products .app-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-products .app-hero__side {
  display: grid;
  gap: var(--pp-gap);
}

.page-products .app-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--pp-radius);
  overflow: hidden;
}

.page-products .app-facts__item {
  display: grid;
  gap: 6px;
  padding: 16px 12px;
  background: var(--panel);
}

.page-products .app-facts__num {
  font-family: var(--font-data);
  font-size: clamp(22px, 5vw, 34px);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
}

.page-products .app-facts__label {
  font-size: 12px;
  line-height: 1.5;
  color: var(--steel);
}

.page-products .app-quick {
  padding: var(--pp-pad);
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--violet);
  border-radius: var(--pp-radius);
}

.page-products .app-quick__title {
  margin: 0 0 14px;
  font-family: var(--font-editorial);
  font-size: 15px;
  letter-spacing: .04em;
  color: var(--fog);
}

.page-products .app-quick__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-products .app-quick__list li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  font-size: 14px;
  line-height: 1.7;
  color: var(--steel);
}

.page-products .app-quick__no {
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--amber);
}

/* ---------- 三步路径 ---------- */
.page-products .steps-layout {
  display: grid;
  gap: var(--pp-gap);
}

.page-products .steps {
  display: grid;
  gap: 0;
}

.page-products .step {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--pp-radius);
  transition: border-color .18s var(--ease);
}

.page-products .step + .step {
  margin-top: 28px;
}

.page-products .step + .step::before {
  content: "";
  position: absolute;
  left: 31px;
  top: -28px;
  height: 28px;
  width: 2px;
  background: linear-gradient(180deg, var(--line), var(--cyan));
  opacity: .75;
}

.page-products .step:hover,
.page-products .step[open] {
  border-color: rgba(59, 240, 220, .45);
}

.page-products .step__head {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr) 22px;
  gap: 12px;
  align-items: center;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-products .step__head::after {
  content: "+";
  font-family: var(--font-data);
  font-size: 16px;
  color: var(--cyan);
  text-align: center;
}

.page-products .step[open] .step__head::after {
  content: "−";
}

.page-products .step__dot {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--cyan);
  border-radius: 50%;
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--cyan);
  background: rgba(59, 240, 220, .06);
}

.page-products .step__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(16px, 3.4vw, 20px);
  line-height: 1.35;
  color: var(--fog);
}

.page-products .step__body {
  padding: 0 16px 18px;
  color: var(--steel);
  font-size: 15px;
  line-height: 1.85;
}

.page-products .step__body p {
  margin: 0;
}

.page-products .steps-media {
  display: grid;
  gap: var(--pp-gap);
  align-content: start;
}

.page-products .steps-media__phone {
  max-width: 320px;
  margin-inline: auto;
}

.page-products .media {
  margin: 0;
}

.page-products .media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: var(--pp-radius);
  background: var(--panel);
  object-fit: cover;
}

.page-products .media--3x4 img {
  aspect-ratio: 3 / 4;
}

.page-products .media--16x9 img {
  aspect-ratio: 16 / 9;
}

.page-products .media__caption {
  margin-top: 10px;
  font-family: var(--font-data);
  font-size: 12px;
  line-height: 1.7;
  color: var(--steel);
}

/* ---------- 四个功能区 ---------- */
.page-products .features {
  display: grid;
  gap: var(--pp-gap);
}

.page-products .feature {
  position: relative;
  display: grid;
  gap: 12px;
  align-content: start;
  padding: var(--pp-pad);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--pp-radius);
  overflow: hidden;
}

.page-products .feature::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--violet), transparent 70%);
  opacity: .8;
}

.page-products .feature__no {
  margin: 0;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--violet);
}

.page-products .feature__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(20px, 4.4vw, 28px);
  line-height: 1.2;
  color: var(--fog);
}

.page-products .feature__text {
  margin: 0;
  color: var(--steel);
  font-size: 15px;
  line-height: 1.85;
}

.page-products .feature__media {
  margin-top: 6px;
}

.page-products .feature__note {
  margin: 0;
  font-family: var(--font-data);
  font-size: 12px;
  line-height: 1.7;
  color: var(--steel);
}

.page-products .mini-list {
  margin: 4px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-products .mini-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-soft);
  font-size: 14px;
  line-height: 1.7;
  color: var(--steel);
}

.page-products .mini-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

/* 竖屏设备外框（CSS 绘制界面示意） */
.page-products .device {
  width: min(200px, 62%);
  margin: 8px auto 0;
  aspect-ratio: 9 / 16;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #070B16;
  box-shadow: 0 0 0 1px rgba(59, 240, 220, .1), 0 22px 44px rgba(0, 0, 0, .55);
}

.page-products .device__screen {
  display: flex;
  flex-direction: column;
  gap: 9px;
  height: 100%;
  padding: 12px 10px;
  border-radius: 12px;
  background:
    radial-gradient(120% 50% at 50% 0%, rgba(59, 240, 220, .14), transparent 70%),
    var(--panel-2);
}

.page-products .device__bar {
  height: 8px;
  border-radius: 2px;
  background: var(--line);
}

.page-products .device__bar--short {
  width: 58%;
}

.page-products .device__bar--tab {
  width: 84%;
  height: 10px;
  background: rgba(154, 107, 255, .35);
}

.page-products .device__bar--on {
  background: var(--cyan);
}

.page-products .device__num {
  margin-top: auto;
  font-family: var(--font-data);
  font-size: 20px;
  font-weight: 700;
  color: var(--amber);
}

/* ---------- 兼容性 ---------- */
.page-products .compat {
  border: 1px solid var(--line);
  border-radius: var(--pp-radius);
  overflow: hidden;
  background: var(--panel);
}

.page-products .compat__head {
  display: none;
}

.page-products .compat__row {
  display: grid;
  gap: 8px;
  padding: 16px;
  border-bottom: 1px solid var(--line-soft);
}

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

.page-products .compat__k {
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--fog);
}

.page-products .compat__v {
  font-size: 14px;
  line-height: 1.8;
  color: var(--steel);
}

.page-products .compat__s {
  justify-self: start;
}

/* ---------- 版本迭代 ---------- */
.page-products .versions {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
  border: 1px solid var(--line);
  border-radius: var(--pp-radius);
  overflow: hidden;
}

.page-products .version {
  display: grid;
  gap: 10px;
  padding: 18px 16px;
  background: var(--panel);
  border-bottom: 1px solid var(--line-soft);
  transition: background-color .18s var(--ease);
}

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

.page-products .version:hover,
.page-products .version:focus-within {
  background: var(--panel-2);
}

.page-products .version__no {
  font-family: var(--font-data);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--amber);
}

.page-products .version__body {
  display: grid;
  gap: 8px;
}

.page-products .version__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.3;
  color: var(--fog);
}

.page-products .version__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--steel);
}

.page-products .version__caps {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 2px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .version:hover .tag,
.page-products .version:focus-within .tag {
  border-color: var(--cyan);
  color: var(--cyan);
}

/* ---------- 卡点处理 ---------- */
.page-products .fixes {
  display: grid;
  gap: var(--pp-gap);
}

.page-products .fix {
  padding: var(--pp-pad);
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--amber);
  border-radius: var(--pp-radius);
}

.page-products .fix__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.35;
  color: var(--fog);
}

.page-products .fix__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--steel);
}

.page-products .app-paper {
  margin-top: clamp(24px, 4vw, 36px);
  padding: var(--pp-pad);
  background: var(--paper);
  color: #0B1220;
  border-radius: var(--pp-radius);
  box-shadow: 0 18px 40px rgba(0, 0, 0, .45);
}

.page-products .app-paper__title {
  margin: 0 0 10px;
  font-family: var(--font-editorial);
  font-size: 18px;
  line-height: 1.4;
}

.page-products .app-paper__text {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.85;
  color: #2C3A52;
}

.page-products .app-paper__links {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.page-products .app-paper .link-more {
  color: #0B1220;
  border-bottom: 1px solid rgba(11, 18, 32, .35);
  text-decoration: none;
  font-family: var(--font-data);
  font-size: 13px;
}

.page-products .app-paper .link-more:hover,
.page-products .app-paper .link-more:focus-visible {
  border-bottom-color: #0B1220;
}

/* ---------- 使用场景 ---------- */
.page-products .scenes-layout {
  display: grid;
  gap: var(--pp-gap);
}

.page-products .scenes {
  display: grid;
  gap: var(--pp-gap);
}

.page-products .scene {
  display: grid;
  gap: 10px;
  padding-left: 16px;
  border-left: 2px solid var(--line);
  transition: border-color .18s var(--ease);
}

.page-products .scene:hover {
  border-left-color: var(--violet);
}

.page-products .scene__no {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--violet);
}

.page-products .scene__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(17px, 3.6vw, 22px);
  line-height: 1.3;
  color: var(--fog);
}

.page-products .scene__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--steel);
}

.page-products .scenes-media {
  align-self: start;
}

/* ---------- 收尾 ---------- */
.page-products .closing {
  margin-top: clamp(28px, 5vw, 48px);
  padding: var(--pp-pad);
  background:
    linear-gradient(120deg, rgba(59, 240, 220, .1), transparent 55%),
    var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--pp-radius);
}

.page-products .closing__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 5vw, 34px);
  line-height: 1.15;
  color: var(--fog);
}

.page-products .closing__text {
  margin: 0 0 20px;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--steel);
}

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

/* ---------- 平板及以上 ---------- */
@media (min-width: 760px) {
  .page-products .steps-media {
    grid-template-columns: minmax(0, 3fr) minmax(0, 7fr);
    align-items: end;
  }

  .page-products .steps-media__phone {
    max-width: none;
  }

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

  .page-products .mini-list li {
    grid-template-columns: 116px minmax(0, 1fr);
  }

  .page-products .version {
    grid-template-columns: 92px minmax(0, 1fr);
    align-items: start;
    padding: 20px 22px;
  }

  .page-products .compat__head {
    display: grid;
    grid-template-columns: 180px minmax(0, 1fr) 120px;
    gap: 20px;
    padding: 12px 20px;
    background: var(--panel-2);
    border-bottom: 1px solid var(--line);
    font-family: var(--font-data);
    font-size: 12px;
    letter-spacing: .12em;
    color: var(--steel);
  }

  .page-products .compat__head span:last-child {
    text-align: right;
  }

  .page-products .compat__row {
    grid-template-columns: 180px minmax(0, 1fr) 120px;
    align-items: center;
    gap: 20px;
    padding: 16px 20px;
  }

  .page-products .compat__s {
    justify-self: end;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1024px) {
  .page-products .app-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(28px, 4vw, 56px);
    align-items: start;
  }

  .page-products .steps-layout {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: clamp(28px, 4vw, 52px);
    align-items: start;
  }

  .page-products .steps-media {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
  }

  .page-products .steps-media__phone {
    max-width: 300px;
    margin-inline: 0;
  }

  .page-products .features {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .page-products .feature--wide {
    grid-column: span 7;
  }

  .page-products .feature--tall {
    grid-column: span 5;
  }

  .page-products .feature--half {
    grid-column: span 6;
  }

  .page-products .feature__text {
    max-width: 52ch;
  }

  .page-products .scenes-layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(28px, 4vw, 52px);
    align-items: start;
  }

  .page-products .closing {
    display: grid;
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    align-items: center;
    gap: clamp(24px, 3vw, 40px);
  }

  .page-products .closing__title,
  .page-products .closing__text {
    grid-column: 1;
  }

  .page-products .closing__text {
    margin-bottom: 0;
  }

  .page-products .closing__links {
    grid-column: 2;
    grid-row: 1 / span 2;
    justify-content: flex-end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .step,
  .page-products .version,
  .page-products .scene,
  .page-products .crumbs a {
    transition: none;
  }
}