/* ===== 业务与终端 /business/ ===== */
.page-products {
  --pd-radius: var(--r-md);
  --pd-gap: 20px;
  --pd-line-soft: rgba(155, 167, 180, 0.16);
}

/* ---------- 面包屑 ---------- */
.page-products .crumb {
  padding: 20px 0 4px;
}

.page-products .crumb__item--current {
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-products .pd-hero {
  position: relative;
  padding: 14px 0 34px;
  overflow: hidden;
}

.page-products .pd-hero::after {
  content: "";
  position: absolute;
  top: -170px;
  right: -190px;
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(51, 225, 210, 0.14), rgba(51, 225, 210, 0) 68%);
  pointer-events: none;
}

.page-products .pd-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 28px;
  align-items: center;
}

.page-products .pd-hero h1 {
  margin: 10px 0 16px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.95rem, 8.2vw, 3.5rem);
  line-height: 1.05;
  letter-spacing: -0.012em;
  color: var(--paper);
  text-wrap: balance;
}

.page-products .pd-hero .lead {
  max-width: 48ch;
  margin: 0 0 22px;
  font-size: 1.02rem;
  line-height: 1.78;
  color: var(--silver);
}

.page-products .pd-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .pd-hstat {
  padding: 12px 12px 13px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: rgba(16, 34, 47, 0.62);
}

.page-products .pd-hstat__num {
  display: block;
  font-family: var(--font-num);
  font-size: 1.7rem;
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--cyan);
}

.page-products .pd-hstat__label {
  display: block;
  margin-top: 5px;
  font-size: 0.74rem;
  line-height: 1.45;
  color: var(--silver);
}

.page-products .pd-hero__media {
  margin: 0;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

.page-products .pd-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* ---------- 主体网格 ---------- */
.page-products .pd-body {
  padding: 8px 0 0;
}

.page-products .pd-body__grid {
  display: grid;
  gap: 24px;
}

/* ---------- 左侧功能路径（移动端横滑） ---------- */
.page-products .pd-tree__head {
  display: none;
}

.page-products .pd-tree__list {
  position: relative;
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 2px 2px 10px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-products .pd-tree__list::before,
.page-products .pd-tree__node::before {
  display: none;
}

.page-products .pd-tree__node {
  flex: 0 0 auto;
  padding-left: 0;
}

.page-products .pd-tree__link {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(16, 34, 47, 0.72);
  color: var(--silver);
  font-size: 0.8rem;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.page-products .pd-tree__link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-products .pd-tree__num {
  font-family: var(--font-num);
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  color: var(--silver-dim);
}

/* ---------- 内容列与模块底座 ---------- */
.page-products .pd-cols {
  display: grid;
  gap: 22px;
  min-width: 0;
}

.page-products .pd-block {
  position: relative;
  min-width: 0;
  padding: 24px 18px 26px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(180deg, rgba(16, 34, 47, 0.7) 0%, rgba(10, 22, 34, 0.42) 100%);
  box-shadow: var(--shadow-soft);
  scroll-margin-top: calc(var(--head-h) + 22px);
  transition: border-color 0.3s ease;
}

.page-products .pd-block:target {
  border-color: rgba(51, 225, 210, 0.42);
}

.page-products .pd-entry {
  background: linear-gradient(150deg, rgba(16, 34, 47, 0.92) 0%, rgba(10, 22, 34, 0.5) 64%);
}

.page-products .pd-block__head {
  max-width: 62ch;
  margin-bottom: 20px;
}

.page-products .pd-block__title {
  margin: 8px 0 8px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.4rem, 4.6vw, 2rem);
  line-height: 1.14;
  color: var(--paper);
}

.page-products .pd-block__desc {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.75;
  color: var(--silver);
}

/* ---------- 两个入口 ---------- */
.page-products .pd-entry__grid {
  display: grid;
  gap: 14px;
}

.page-products .pd-entry__col {
  padding: 18px 16px;
  border: 1px solid var(--line);
  border-radius: var(--pd-radius);
  background: rgba(10, 22, 34, 0.55);
}

.page-products .pd-entry__col--app {
  border-color: rgba(51, 225, 210, 0.28);
  background: linear-gradient(180deg, rgba(51, 225, 210, 0.07), rgba(10, 22, 34, 0.62));
}

.page-products .pd-entry__col--web {
  border-color: rgba(255, 106, 43, 0.26);
  background: linear-gradient(180deg, rgba(255, 106, 43, 0.07), rgba(10, 22, 34, 0.62));
}

.page-products .pd-list {
  display: grid;
  gap: 9px;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .pd-list li {
  position: relative;
  padding-left: 16px;
  font-size: 0.92rem;
  line-height: 1.68;
  color: var(--silver);
}

.page-products .pd-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 7px;
  height: 1px;
  background: var(--cyan);
}

.page-products .pd-entry__col--web .pd-list li::before {
  background: var(--orange);
}

.page-products .pd-entry__same {
  margin: 18px 0 0;
  padding: 12px 14px;
  border-left: 2px solid var(--cyan);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  background: rgba(51, 225, 210, 0.06);
  color: var(--paper);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ---------- 客户端能力 ---------- */
.page-products .pd-feats {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .pd-feat {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-top: 1px solid var(--pd-line-soft);
}

.page-products .pd-feat:first-child {
  padding-top: 2px;
  border-top: 0;
}

.page-products .pd-feat__num {
  padding-top: 4px;
  font-family: var(--font-num);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-products .pd-feat__title {
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.1rem;
  line-height: 1.28;
  color: var(--paper);
}

.page-products .pd-feat__desc {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.72;
  color: var(--silver);
}

.page-products .pd-devices {
  display: grid;
  gap: 16px;
  margin-top: 22px;
}

.page-products .pd-device {
  margin: 0;
}

.page-products .pd-device__frame {
  padding: 7px;
  border: 1px solid var(--line-strong);
  border-radius: 18px;
  background: linear-gradient(160deg, rgba(155, 167, 180, 0.16), rgba(10, 22, 34, 0.9));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06), 0 18px 38px -30px rgba(0, 0, 0, 0.9);
  overflow: hidden;
}

.page-products .pd-device__frame img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 12px;
  object-fit: cover;
}

.page-products .pd-device--land .pd-device__frame img {
  aspect-ratio: 3 / 2;
}

.page-products .pd-device--port .pd-device__frame img {
  aspect-ratio: 3 / 5;
}

.page-products .pd-device__cap {
  margin: 9px 2px 0;
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--silver-dim);
}

/* ---------- 三层走法 ---------- */
.page-products .pd-steps {
  position: relative;
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .pd-step {
  position: relative;
  padding: 0 0 22px 34px;
}

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

.page-products .pd-step::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 22px;
  bottom: -2px;
  width: 1px;
  background: var(--line);
}

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

.page-products .pd-step::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 9px;
  width: 11px;
  height: 11px;
  border: 1px solid rgba(51, 225, 210, 0.62);
  border-radius: 3px;
  background: var(--ink);
  transform: rotate(45deg);
}

.page-products .pd-step__num {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-num);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--silver-dim);
}

.page-products .pd-step__title {
  margin: 0 0 5px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.08rem;
  line-height: 1.28;
  color: var(--paper);
}

.page-products .pd-step__desc {
  max-width: 58ch;
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.72;
  color: var(--silver);
}

/* ---------- 积分对比 ---------- */
.page-products .pd-compare__panel {
  padding: 20px 16px;
  border: 1px solid var(--line);
  border-radius: var(--pd-radius);
  background: rgba(10, 22, 34, 0.55);
}

.page-products .pd-meters {
  display: grid;
  gap: 16px;
}

.page-products .pd-meter-row {
  display: grid;
  grid-template-columns: 58px 44px minmax(0, 1fr);
  align-items: center;
  gap: 12px;
}

.page-products .pd-meter-row__name {
  font-size: 0.82rem;
  color: var(--silver);
}

.page-products .pd-meter-row__val {
  font-family: var(--font-num);
  font-size: 0.95rem;
  text-align: right;
  color: var(--paper);
}

.page-products .pd-compare__hint {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--pd-line-soft);
  font-size: 0.88rem;
  line-height: 1.72;
  color: var(--silver);
}

.page-products .pd-compare__media {
  margin: 18px 0 0;
  border: 1px solid var(--line);
  border-radius: var(--pd-radius);
  overflow: hidden;
}

.page-products .pd-compare__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* ---------- 使用场景 ---------- */
.page-products .pd-scenes__media {
  margin: 0 0 18px;
  border: 1px solid var(--line);
  border-radius: var(--pd-radius);
  overflow: hidden;
}

.page-products .pd-scenes__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-products .pd-scenes__grid {
  display: grid;
  gap: 14px;
}

.page-products .pd-scene {
  padding: 20px 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--pd-radius);
  background: rgba(15, 46, 51, 0.45);
}

.page-products .pd-scene__tag {
  display: inline-block;
  margin-bottom: 10px;
  font-family: var(--font-num);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-products .pd-scene__title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.12rem;
  line-height: 1.28;
  color: var(--paper);
}

.page-products .pd-scene__desc {
  margin: 0 0 14px;
  font-size: 0.9rem;
  line-height: 1.72;
  color: var(--silver);
}

.page-products .pd-scene__meta {
  margin: 0;
  padding-top: 10px;
  border-top: 1px solid var(--pd-line-soft);
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--silver-dim);
}

/* ---------- 版本演进 ---------- */
.page-products .pd-road__list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .pd-road__item {
  position: relative;
  padding: 0 0 22px 30px;
}

.page-products .pd-road__item:last-child {
  padding-bottom: 0;
}

.page-products .pd-road__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 9px;
  height: 9px;
  border: 1px solid var(--cyan);
  border-radius: 50%;
  background: var(--ink);
}

.page-products .pd-road__item::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 20px;
  bottom: -2px;
  width: 1px;
  background: var(--line);
}

.page-products .pd-road__item:last-child::after {
  display: none;
}

.page-products .pd-road__date {
  margin: 0 0 4px;
  font-family: var(--font-num);
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  color: var(--silver-dim);
}

.page-products .pd-road__title {
  margin: 0 0 5px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.08rem;
  line-height: 1.28;
  color: var(--paper);
}

.page-products .pd-road__desc {
  max-width: 60ch;
  margin: 0;
  font-size: 0.91rem;
  line-height: 1.72;
  color: var(--silver);
}

/* ---------- 下一步 ---------- */
.page-products .pd-next {
  margin-top: 46px;
  padding: 38px 0 46px;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(15, 46, 51, 0.38), rgba(10, 22, 34, 0));
}

.page-products .pd-next__inner {
  display: grid;
  gap: 24px;
}

.page-products .pd-next__title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.35rem, 4.4vw, 1.85rem);
  line-height: 1.16;
  color: var(--paper);
}

.page-products .pd-next__desc {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.75;
  color: var(--silver);
}

.page-products .pd-next__links {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-products .pd-next__links li {
  border-bottom: 1px solid var(--line);
}

.page-products .pd-next__links a {
  display: grid;
  gap: 3px;
  padding: 15px 6px;
  text-decoration: none;
  transition: background 0.2s ease;
}

.page-products .pd-next__links a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-products .pd-next__name {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.05rem;
  line-height: 1.25;
  color: var(--paper);
}

.page-products .pd-next__meta {
  font-size: 0.82rem;
  line-height: 1.5;
  color: var(--silver-dim);
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 640px) {
  .page-products .pd-hero__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .pd-entry__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }

  .page-products .pd-devices {
    grid-template-columns: 1.4fr 1fr;
    gap: 16px;
    align-items: end;
  }

  .page-products .pd-scenes__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-products .pd-next__links a {
    grid-template-columns: 138px minmax(0, 1fr);
    align-items: baseline;
    gap: 16px;
    padding: 16px 6px;
  }

  .page-products .pd-next__links a:hover {
    background: rgba(51, 225, 210, 0.05);
  }
}

/* ---------- 桌面端：左树右内容 ---------- */
@media (min-width: 1024px) {
  .page-products .pd-hero {
    padding: 26px 0 46px;
  }

  .page-products .pd-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 48px;
  }

  .page-products .pd-body__grid {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }

  .page-products .pd-tree {
    position: sticky;
    top: calc(var(--head-h) + 26px);
  }

  .page-products .pd-tree__head {
    display: block;
    margin: 0 0 14px;
    font-family: var(--font-num);
    font-size: 0.68rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--silver-dim);
  }

  .page-products .pd-tree__list {
    display: block;
    overflow: visible;
    padding: 0;
  }

  .page-products .pd-tree__list::before {
    display: block;
    content: "";
    position: absolute;
    left: 5px;
    top: 16px;
    bottom: 16px;
    width: 1px;
    background: linear-gradient(180deg, rgba(51, 225, 210, 0.55), rgba(155, 167, 180, 0.16) 58%, rgba(155, 167, 180, 0));
  }

  .page-products .pd-tree__node {
    position: relative;
    padding-left: 30px;
  }

  .page-products .pd-tree__node::before {
    display: block;
    content: "";
    position: absolute;
    left: 0;
    top: 15px;
    width: 11px;
    height: 11px;
    border: 1px solid var(--line-strong);
    border-radius: 50%;
    background: var(--ink);
    transition: background 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
  }

  .page-products .pd-tree__node:hover::before,
  .page-products .pd-tree__node:focus-within::before {
    background: var(--cyan);
    border-color: var(--cyan);
    box-shadow: 0 0 0 4px rgba(51, 225, 210, 0.14);
  }

  .page-products .pd-tree__link {
    display: block;
    padding: 10px 0;
    border: 0;
    border-radius: 0;
    background: none;
    font-size: 0.9rem;
    line-height: 1.4;
    white-space: normal;
  }

  .page-products .pd-tree__link:hover,
  .page-products .pd-tree__node:hover .pd-tree__link {
    color: var(--paper);
  }

  .page-products .pd-cols {
    gap: 26px;
  }

  .page-products .pd-block {
    padding: 32px 30px 34px;
  }

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

  .page-products .pd-next__inner {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: 48px;
    align-items: start;
  }
}

/* ---------- 大屏：细节收紧 ---------- */
@media (min-width: 1280px) {
  .page-products .pd-block {
    padding: 36px 36px 38px;
  }

  .page-products .pd-hero__grid {
    gap: 64px;
  }

  .page-products .pd-body__grid {
    gap: 64px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products *,
  .page-products *::before,
  .page-products *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}