/* ============================================================
   平台服务 /platform/ —— 页面专属样式
   作用域：.page-products
   ============================================================ */

.page-products {
  --pp-gap: clamp(20px, 3vw, 40px);
  --pp-rail: 72px;
  --pp-hair: 1px solid var(--c-line);
}

/* ---------- 首屏 ---------- */
.page-products .pp-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(20px, 3.5vw, 40px) clamp(36px, 6vw, 76px);
}

.page-products .pp-hero::before {
  content: "";
  position: absolute;
  inset: -10% -20% auto -20%;
  height: 220%;
  background:
    repeating-linear-gradient(
      108deg,
      rgba(0, 222, 123, .05) 0px,
      rgba(0, 222, 123, .05) 1px,
      transparent 1px,
      transparent 96px
    );
  pointer-events: none;
  z-index: 0;
}

.page-products .pp-hero > .shell {
  position: relative;
  z-index: 1;
}

.page-products .pp-hero .breadcrumb {
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-products .pp-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 2.6vw, 32px);
}

.page-products .pp-hero__eyebrow {
  margin: 0;
}

.page-products .pp-hero__title {
  margin: 0;
  font-family: var(--f-display);
  font-weight: 900;
  font-size: clamp(34px, 6.4vw, 82px);
  line-height: 1.02;
  letter-spacing: -0.025em;
  color: var(--c-ink);
  max-width: 18ch;
}

.page-products .pp-hero__lead {
  margin: 0;
  max-width: 58ch;
  color: var(--c-muted);
  font-size: clamp(16px, 1.4vw, 18px);
  line-height: 1.75;
}

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

.page-products .pp-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 8px 0 0;
  padding: 0;
  background: var(--c-line);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.page-products .pp-hero__stat {
  background: var(--c-bg2);
  padding: clamp(14px, 2vw, 22px) clamp(14px, 2vw, 24px);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-products .pp-hero__stat dt {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--c-muted);
  text-transform: none;
}

.page-products .pp-hero__stat dd {
  margin: 0;
  font-family: var(--f-data);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: clamp(22px, 2.6vw, 34px);
  color: var(--c-brand);
  line-height: 1;
}

/* ---------- 编号索引条 ---------- */
.page-products .pp-cmd {
  position: relative;
  border-block: var(--pp-hair);
  background: var(--c-bg2);
}

.page-products .pp-cmd__inner {
  display: flex;
  gap: clamp(14px, 2vw, 30px);
  overflow-x: auto;
  scrollbar-width: none;
  padding-block: 14px;
}

.page-products .pp-cmd__inner::-webkit-scrollbar {
  display: none;
}

.page-products .pp-cmd__item {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  font-size: 14px;
  color: var(--c-muted);
  text-decoration: none;
  white-space: nowrap;
  padding: 4px 2px;
  border-bottom: 2px solid transparent;
  transition: color 160ms ease, border-color 160ms ease;
}

.page-products .pp-cmd__item:hover,
.page-products .pp-cmd__item:focus-visible {
  color: var(--c-ink);
  border-bottom-color: var(--c-brand);
}

.page-products .pp-cmd__no {
  font-family: var(--f-data);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  color: var(--c-brand);
  letter-spacing: .08em;
}

/* ---------- 通用章节头 ---------- */
.page-products .pp-head {
  display: grid;
  gap: 12px;
  margin-bottom: clamp(26px, 4vw, 54px);
  max-width: 76ch;
}

.page-products .pp-head__title {
  margin: 0;
  font-family: var(--f-display);
  font-weight: 800;
  font-size: clamp(24px, 3.6vw, 44px);
  line-height: 1.14;
  letter-spacing: -0.015em;
  color: var(--c-ink);
}

.page-products .pp-head__lead {
  margin: 0;
  color: var(--c-muted);
  font-size: 16px;
  line-height: 1.75;
  max-width: 62ch;
}

.page-products .pp-head__lead .num {
  color: var(--c-hi);
}

/* ---------- 01 双栏对峙 ---------- */
.page-products .pp-duel__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 44px);
}

.page-products .pp-lane {
  display: grid;
  gap: 16px;
  align-content: start;
  min-width: 0;
}

.page-products .pp-lane__tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-family: var(--f-data);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--c-brand);
  text-transform: uppercase;
}

.page-products .pp-lane__tag--signal {
  color: var(--c-signal);
}

.page-products .pp-lane__dot {
  width: 8px;
  height: 8px;
  border-radius: var(--r-pill);
  background: var(--c-brand);
  box-shadow: 0 0 0 4px rgba(0, 222, 123, .14);
}

.page-products .pp-lane__tag--signal .pp-lane__dot {
  background: var(--c-signal);
  box-shadow: 0 0 0 4px rgba(255, 106, 24, .16);
}

.page-products .pp-lane__media {
  margin: 0;
  border-radius: var(--r-xl);
  overflow: hidden;
  background: var(--c-bg2);
}

.page-products .pp-lane__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .pp-lane__media--tall img {
  aspect-ratio: 2 / 3;
}

.page-products .pp-lane__media--wide img {
  aspect-ratio: 16 / 10;
}

.page-products .pp-lane__h {
  margin: 4px 0 0;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: clamp(20px, 2.2vw, 26px);
  line-height: 1.24;
  color: var(--c-ink);
}

.page-products .pp-lane__p {
  margin: 0;
  color: var(--c-muted);
  line-height: 1.72;
  font-size: 16px;
}

.page-products .pp-lane__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
  border-top: var(--pp-hair);
  padding-top: 14px;
}

.page-products .pp-lane__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--c-ink);
}

.page-products .pp-lane__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 8px;
  height: 2px;
  background: var(--c-brand);
}

.page-products .pp-lane--desktop .pp-lane__list li::before {
  background: var(--c-signal);
}

.page-products .pp-lane__list .num {
  color: var(--c-hi);
}

/* 中缝对照轴 */
.page-products .pp-spine {
  display: none;
}

/* ---------- 02 手机端要点 ---------- */
.page-products .pp-points {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--c-line);
  border-radius: var(--r-xl);
  overflow: hidden;
}

.page-products .pp-point {
  background: var(--c-bg2);
  padding: clamp(20px, 2.6vw, 34px);
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-products .pp-point__no {
  margin: 0;
  font-family: var(--f-data);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--c-brand);
}

.page-products .pp-point__h {
  margin: 0;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: clamp(18px, 1.9vw, 22px);
  line-height: 1.3;
  color: var(--c-ink);
}

.page-products .pp-point__p {
  margin: 0;
  color: var(--c-muted);
  font-size: 15px;
  line-height: 1.72;
}

.page-products .pp-point__p .num {
  color: var(--c-hi);
  font-family: var(--f-data);
  font-variant-numeric: tabular-nums;
}

/* ---------- 03 电脑端案例合集 ---------- */
.page-products .pp-cases__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 40px);
  align-items: start;
}

.page-products .pp-cats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--c-line);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.page-products .pp-cat {
  background: var(--c-bg2);
  padding: clamp(16px, 2vw, 24px);
  display: grid;
  gap: 6px;
  align-content: start;
}

.page-products .pp-cat__k {
  margin: 0;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 17px;
  color: var(--c-signal);
  letter-spacing: .02em;
}

.page-products .pp-cat__v {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--c-muted);
}

.page-products .pp-cases__media {
  margin: 0;
  border-radius: var(--r-xl);
  overflow: hidden;
  background: var(--c-bg2);
}

.page-products .pp-cases__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-products .pp-cases__scale {
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding-top: 18px;
  border-top: var(--pp-hair);
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-muted);
  max-width: 78ch;
}

.page-products .pp-cases__scale .num {
  font-family: var(--f-data);
  font-variant-numeric: tabular-nums;
  color: var(--c-hi);
}

.page-products .pp-cases__scale a {
  color: var(--c-brand);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 222, 123, .4);
}

.page-products .pp-cases__scale a:hover,
.page-products .pp-cases__scale a:focus-visible {
  border-bottom-color: var(--c-brand);
}

/* ---------- 04 版本对照表 ---------- */
.page-products .pp-table-wrap {
  overflow-x: auto;
  border-radius: var(--r-lg);
  background: var(--c-bg2);
  border: var(--pp-hair);
}

.page-products .pp-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 14.5px;
}

.page-products .pp-table__cap {
  caption-side: top;
  text-align: left;
  padding: 16px clamp(14px, 2vw, 22px);
  font-family: var(--f-data);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--c-muted);
  border-bottom: var(--pp-hair);
}

.page-products .pp-table th,
.page-products .pp-table td {
  text-align: left;
  padding: 14px clamp(14px, 2vw, 22px);
  border-bottom: var(--pp-hair);
  vertical-align: top;
}

.page-products .pp-table thead th {
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--c-muted);
  font-weight: 500;
  background: var(--c-bg3);
}

.page-products .pp-table tbody th {
  font-weight: 600;
  color: var(--c-ink);
}

.page-products .pp-table tbody td {
  font-family: var(--f-data);
  font-variant-numeric: tabular-nums;
  color: var(--c-muted);
}

.page-products .pp-table tbody tr:last-child th,
.page-products .pp-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-products .pp-diff,
.page-products .pp-same {
  display: inline-block;
  padding: 3px 10px;
  border-radius: var(--r-pill);
  font-family: var(--f-data);
  font-size: 12px;
  letter-spacing: .06em;
}

.page-products .pp-diff {
  color: var(--c-signal);
  background: rgba(255, 106, 24, .12);
  border: 1px solid rgba(255, 106, 24, .4);
}

.page-products .pp-same {
  color: var(--c-brand);
  background: rgba(0, 222, 123, .1);
  border: 1px solid rgba(0, 222, 123, .3);
}

.page-products .pp-compare__media {
  margin: clamp(22px, 3vw, 34px) 0 0;
  border-radius: var(--r-xl);
  overflow: hidden;
  background: var(--c-bg2);
}

.page-products .pp-compare__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

/* ---------- 05 换设备 ---------- */
.page-products .pp-device__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vw, 40px);
  align-items: center;
}

.page-products .pp-device__body {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-products .pp-device__body .pp-head__title {
  margin: 0;
}

.page-products .pp-device__p {
  margin: 0;
  color: var(--c-muted);
  font-size: 16px;
  line-height: 1.76;
  max-width: 56ch;
}

.page-products .pp-device__p .num {
  font-family: var(--f-data);
  font-variant-numeric: tabular-nums;
  color: var(--c-hi);
}

.page-products .pp-device__body .btn {
  justify-self: start;
  margin-top: 6px;
}

.page-products .pp-device__media {
  margin: 0;
  border-radius: var(--r-xl);
  overflow: hidden;
  background: var(--c-bg2);
}

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

/* ---------- 06 功能与开通 ---------- */
.page-products .pp-start__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vw, 42px);
}

.page-products .pp-start__col {
  min-width: 0;
}

.page-products .pp-start__sub {
  margin: 0 0 14px;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: .02em;
  color: var(--c-ink);
  padding-bottom: 10px;
  border-bottom: var(--pp-hair);
}

.page-products .pp-start__col .pp-start__sub + .pp-features {
  margin-bottom: clamp(22px, 3vw, 32px);
}

.page-products .pp-start__col .pp-start__sub:last-of-type + .pp-features {
  margin-bottom: 0;
}

.page-products .pp-features {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
}

.page-products .pp-features li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 12px 0;
  border-bottom: var(--pp-hair);
  font-size: 14.5px;
  line-height: 1.62;
  color: var(--c-muted);
}

.page-products .pp-features--plain li {
  position: relative;
  padding-left: 18px;
  border-bottom: 0;
  padding-block: 7px;
}

.page-products .pp-features--plain li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.05em;
  width: 8px;
  height: 2px;
  background: var(--c-signal);
}

.page-products .pp-features__k {
  font-weight: 600;
  color: var(--c-ink);
}

.page-products .pp-features__v {
  color: var(--c-muted);
}

.page-products .pp-steps {
  counter-reset: none;
  list-style: none;
  margin: clamp(30px, 4vw, 52px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--c-line);
  border-radius: var(--r-xl);
  overflow: hidden;
}

.page-products .pp-step {
  background: var(--c-bg2);
  padding: clamp(18px, 2.4vw, 28px);
  display: grid;
  gap: 8px;
  align-content: start;
}

.page-products .pp-step__no {
  font-family: var(--f-data);
  font-variant-numeric: tabular-nums;
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--c-hi);
  letter-spacing: -0.02em;
}

.page-products .pp-step__t {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 17px;
  color: var(--c-ink);
}

.page-products .pp-step__d {
  font-size: 14.5px;
  line-height: 1.66;
  color: var(--c-muted);
}

.page-products .pp-start__note {
  margin: clamp(26px, 3.4vw, 40px) 0 0;
  padding-top: 18px;
  border-top: var(--pp-hair);
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-muted);
  max-width: 74ch;
}

.page-products .pp-start__note a {
  color: var(--c-brand);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 222, 123, .4);
}

.page-products .pp-start__note a:hover,
.page-products .pp-start__note a:focus-visible {
  border-bottom-color: var(--c-brand);
}

/* ============================================================
   响应式
   ============================================================ */

@media (min-width: 640px) {
  .page-products .pp-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

  .page-products .pp-features li {
    grid-template-columns: minmax(0, 12ch) minmax(0, 1fr);
    gap: 14px;
    align-items: baseline;
  }

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

@media (min-width: 900px) {
  .page-products .pp-hero__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 15rem);
    column-gap: clamp(24px, 4vw, 56px);
    align-items: start;
  }

  .page-products .pp-hero__eyebrow,
  .page-products .pp-hero__title,
  .page-products .pp-hero__lead,
  .page-products .pp-hero__actions,
  .page-products .pp-hero__stats {
    grid-column: 1 / -1;
  }

  .page-products .pp-hero__title {
    grid-column: 1 / 2;
  }

  .page-products .pp-hero__lead {
    grid-column: 1 / 2;
  }

  .page-products .pp-cases__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 22rem);
    column-gap: clamp(24px, 4vw, 52px);
  }

  .page-products .pp-device__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 26rem);
    column-gap: clamp(26px, 4vw, 56px);
  }

  .page-products .pp-start__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    column-gap: clamp(28px, 4vw, 60px);
  }

  .page-products .pp-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-products .pp-duel__grid {
    grid-template-columns: minmax(0, 1fr) var(--pp-rail) minmax(0, 1fr);
    column-gap: clamp(20px, 2.6vw, 40px);
    align-items: stretch;
  }

  .page-products .pp-spine {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
    position: relative;
    padding-block: 8px 24px;
  }

  .page-products .pp-spine__cap {
    font-family: var(--f-data);
    font-size: 11px;
    letter-spacing: .16em;
    color: var(--c-muted);
    writing-mode: vertical-rl;
    text-orientation: mixed;
    padding-block: 10px;
  }

  .page-products .pp-spine__line {
    flex: 1 1 auto;
    width: 1px;
    min-height: 80px;
    background: linear-gradient(
      to bottom,
      var(--c-brand) 0%,
      var(--c-brand) 25%,
      var(--c-signal) 25%,
      var(--c-signal) 60%,
      var(--c-line) 60%,
      var(--c-line) 100%
    );
  }

  .page-products .pp-spine__tick {
    position: relative;
    font-family: var(--f-data);
    font-size: 11px;
    letter-spacing: .08em;
    color: var(--c-muted);
    padding-block: 10px;
    writing-mode: vertical-rl;
    text-orientation: mixed;
  }

  .page-products .pp-spine__tick::before {
    content: "";
    position: absolute;
    left: calc(50% - 4px);
    top: 0;
    width: 8px;
    height: 1px;
    background: var(--c-muted);
  }

  .page-products .pp-lane--mobile .pp-lane__media--tall img {
    aspect-ratio: 3 / 4;
  }

  .page-products .pp-lane--desktop .pp-lane__media--wide img {
    aspect-ratio: 4 / 3;
  }
}

@media (min-width: 1200px) {
  .page-products .pp-points {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pp-cmd__item {
    transition: none;
  }
}
</main>