.page-products {
  --pp-gap: clamp(18px, 3vw, 36px);
  --pp-rule: 1px solid var(--hair);
  --pp-rule-cream: 1px solid rgba(26, 18, 8, 0.16);
  --pp-cream-muted: rgba(26, 18, 8, 0.68);
  --pp-head-gap: clamp(18px, 3vw, 30px);
}

.page-products .band {
  padding-block: clamp(44px, 7vw, 88px);
}

.page-products .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 22px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

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

.page-products .breadcrumbs a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 通用小节头部 ---------- */

.page-products .pp-eyebrow {
  display: inline-block;
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-products .band--cream .pp-eyebrow {
  color: var(--orange);
}

.page-products .pp-head {
  max-width: 780px;
  margin-bottom: var(--pp-head-gap);
}

.page-products .pp-head__title {
  margin: 0 0 12px;
}

.page-products .pp-sub {
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--mist);
}

.page-products .band--cream .display-2,
.page-products .band--cream .pp-sub {
  color: var(--brown);
}

.page-products .band--cream .pp-sub {
  color: var(--pp-cream-muted);
}

/* ---------- 01 首屏 ---------- */

.page-products .pp-hero {
  position: relative;
  overflow: hidden;
}

.page-products .pp-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(35, 230, 208, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(35, 230, 208, 0.07) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

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

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

.page-products .pp-hero h1 {
  margin: 0 0 16px;
}

.page-products .pp-hero .lede {
  margin: 0 0 24px;
  max-width: 38em;
}

.page-products .pp-specs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(148px, 1fr));
  gap: 1px;
  margin: 0 0 24px;
  padding: 0;
  background: var(--hair);
  border: var(--pp-rule);
}

.page-products .pp-spec {
  background: var(--ink-900);
  padding: 14px 16px;
}

.page-products .pp-spec__k {
  display: block;
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-products .pp-spec__v {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1.45;
  color: var(--white);
}

.page-products .pp-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0;
}

/* ---------- 图片容器 ---------- */

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

.page-products .pp-shot img {
  display: block;
  width: 100%;
  height: auto;
  border: var(--pp-rule);
  background: var(--ink-800);
}

.page-products .pp-shot figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.65;
  letter-spacing: 0.02em;
  color: var(--mist);
}

.page-products .band--cream .pp-shot img {
  border-color: rgba(26, 18, 8, 0.18);
}

.page-products .band--cream .pp-shot figcaption {
  color: var(--pp-cream-muted);
}

/* ---------- 02 安装与平台切换 ---------- */

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

.page-products .pp-plat {
  position: relative;
  border: 1px solid rgba(26, 18, 8, 0.24);
  background: var(--ink-900);
}

.page-products .pp-plat__input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}

.page-products .pp-plat__tabs {
  display: flex;
  border-bottom: 1px solid rgba(35, 230, 208, 0.22);
}

.page-products .pp-plat__tab {
  flex: 1 1 0;
  padding: 14px 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mist);
  cursor: pointer;
  border-right: 1px solid rgba(35, 230, 208, 0.22);
  transition: background var(--ease), color var(--ease);
}

.page-products .pp-plat__tab:last-child {
  border-right: 0;
}

.page-products .pp-plat__tab:hover {
  background: var(--ink-800);
  color: var(--white);
}

.page-products #pp-android:checked ~ .pp-plat__tabs .pp-plat__tab[for="pp-android"],
.page-products #pp-ios:checked ~ .pp-plat__tabs .pp-plat__tab[for="pp-ios"] {
  background: var(--cream);
  color: var(--brown);
}

.page-products #pp-android:focus-visible ~ .pp-plat__tabs .pp-plat__tab[for="pp-android"],
.page-products #pp-ios:focus-visible ~ .pp-plat__tabs .pp-plat__tab[for="pp-ios"] {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-products .pp-steps {
  display: none;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: rgba(35, 230, 208, 0.18);
}

.page-products #pp-android:checked ~ .pp-plat__panes .pp-steps--android,
.page-products #pp-ios:checked ~ .pp-plat__panes .pp-steps--ios {
  display: grid;
}

.page-products .pp-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "num title"
    "num text";
  column-gap: 14px;
  align-items: start;
  padding: 20px 18px;
  background: var(--ink-900);
  transition: background var(--ease);
}

.page-products .pp-step:hover {
  background: var(--ink-800);
}

.page-products .pp-step__num {
  grid-area: num;
  font-family: var(--font-mono);
  font-size: clamp(32px, 5.5vw, 46px);
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--orange);
}

.page-products .pp-step__title {
  grid-area: title;
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 19px;
  line-height: 1.3;
  color: var(--white);
}

.page-products .pp-step__text {
  grid-area: text;
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 通用双栏 ---------- */

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

/* ---------- 03 显示适配 ---------- */

.page-products .pp-rows {
  margin: 22px 0 0;
  padding: 0;
}

.page-products .pp-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 14px 0;
  border-top: var(--pp-rule);
}

.page-products .pp-row:last-child {
  border-bottom: var(--pp-rule);
}

.page-products .pp-row__k {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-products .pp-row__v {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 04 同步节奏 ---------- */

.page-products .pp-meter {
  display: flex;
  align-items: center;
  gap: 18px;
  margin: 24px 0;
  padding: 18px;
  border: var(--pp-rule);
  background: rgba(22, 34, 74, 0.6);
}

.page-products .pp-pulse {
  flex: 0 0 auto;
  width: 84px;
  height: 84px;
}

.page-products .pp-pulse__ring {
  fill: none;
  stroke: var(--cyan);
  stroke-width: 2.5;
  transform-origin: 60px 60px;
  animation: pp-orbit 2s ease-in-out infinite;
}

.page-products .pp-pulse__core {
  fill: var(--cyan);
}

.page-products .pp-meter__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 34px;
  line-height: 1;
  color: var(--white);
}

.page-products .pp-meter__num span {
  margin-left: 6px;
  font-size: 14px;
  color: var(--mist);
}

.page-products .pp-meter__label {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-products .pp-bullets {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .pp-bullets li {
  position: relative;
  margin-bottom: 10px;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-products .pp-bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 9px;
  height: 2px;
  background: var(--orange);
}

@keyframes pp-orbit {
  0%, 100% { opacity: 0.35; transform: scale(0.85); }
  50% { opacity: 1; transform: scale(1); }
}

/* ---------- 05 账号安全 ---------- */

.page-products .pp-checklist {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .pp-check {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-top: var(--pp-rule-cream);
}

.page-products .pp-check:last-child {
  border-bottom: var(--pp-rule-cream);
}

.page-products .pp-check__num {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--orange);
}

.page-products .pp-check__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 19px;
  line-height: 1.3;
  color: var(--brown);
}

.page-products .pp-check__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--pp-cream-muted);
}

/* ---------- 06 安装与登录问题 ---------- */

.page-products .pp-fix__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(258px, 1fr));
  gap: 1px;
  border: var(--pp-rule);
  background: var(--hair);
}

.page-products .pp-fix__item {
  padding: 20px 18px;
  background: var(--ink-900);
  transition: background var(--ease);
}

.page-products .pp-fix__item:hover {
  background: var(--ink-800);
}

.page-products .pp-fix__q {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 19px;
  line-height: 1.3;
  color: var(--white);
}

.page-products .pp-fix__a {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-products .pp-fix__a a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--hair);
  transition: border-color var(--ease);
}

.page-products .pp-fix__a a:hover {
  border-bottom-color: var(--cyan);
}

.page-products .pp-fix__note {
  margin: var(--pp-head-gap) 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 断点 ---------- */

@media (min-width: 640px) {
  .page-products .pp-row {
    grid-template-columns: 88px minmax(0, 1fr);
    gap: 16px;
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-products .pp-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 1fr);
    align-items: center;
  }

  .page-products .pp-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
    align-items: center;
  }
}

@media (min-width: 980px) {
  .page-products .pp-install__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pp-pulse__ring {
    animation: none;
    opacity: 0.7;
    transform: none;
  }

  .page-products .pp-step,
  .page-products .pp-fix__item,
  .page-products .pp-plat__tab {
    transition: none;
  }
}