/* =========================================================
   客户端下载页 · page-products
   作用域内样式，移动端优先
   ========================================================= */

.page-products {
  --pp-glass: rgba(23, 50, 74, 0.62);
  --pp-edge: rgba(200, 150, 62, 0.34);
  --pp-hair: rgba(138, 147, 160, 0.2);
  --pp-soft: rgba(220, 228, 236, 0.72);
  position: relative;
  background:
    radial-gradient(920px 520px at 94% -8%, rgba(200, 150, 62, 0.12), transparent 62%),
    radial-gradient(760px 460px at 2% 44%, rgba(79, 169, 140, 0.08), transparent 64%),
    var(--ink-900);
  color: #dce4ec;
  padding-bottom: clamp(2.5rem, 6vw, 5rem);
}

.page-products h2,
.page-products h3 {
  margin: 0;
  font-family: var(--font-display);
  color: #ffffff;
}

.page-products p {
  margin: 0;
}

.page-products ul,
.page-products ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products a {
  color: inherit;
}

.page-products img {
  display: block;
  max-width: 100%;
  height: auto;
}

/* ---------- 首屏 ---------- */

.page-products .pp-top {
  position: relative;
  border-bottom: 1px solid var(--pp-hair);
}

.page-products .pp-top__inner {
  position: relative;
  padding-block: clamp(1.25rem, 4vw, 2.25rem) clamp(2rem, 5vw, 3.5rem);
}

.page-products .pp-top .breadcrumb {
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
}

.page-products .pp-top .eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--amber);
}

.page-products .pp-top__title {
  max-width: 20ch;
  margin-top: 0.75rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.125rem, 7vw, 4.25rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: #ffffff;
}

.page-products .pp-top__lede {
  max-width: 44rem;
  margin-top: clamp(1rem, 2.5vw, 1.5rem);
  font-size: clamp(0.9375rem, 1.6vw, 1.0625rem);
  line-height: 1.95;
  color: var(--pp-soft);
}

.page-products .pp-top__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 2rem;
  margin-top: clamp(1.25rem, 3vw, 1.75rem);
  font-size: 0.875rem;
  color: var(--pp-soft);
}

.page-products .pp-top__facts li {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}

.page-products .pp-top__facts .text-mono {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--amber-bright);
}

.page-products .pp-top__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: clamp(1.5rem, 3vw, 2.25rem);
}

.page-products .pp-top__mark {
  display: none;
}

@media (min-width: 1024px) {
  .page-products .pp-top__mark {
    display: block;
    position: absolute;
    right: 0;
    top: clamp(2.5rem, 6vw, 4rem);
    writing-mode: vertical-rl;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.34em;
    color: rgba(200, 150, 62, 0.78);
    border-left: 1px solid var(--pp-edge);
    padding-left: 0.75rem;
  }
}

/* ---------- 页内目录 ---------- */

.page-products .pp-toc {
  position: sticky;
  top: var(--topbar-h);
  z-index: 18;
  background: rgba(14, 34, 51, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--pp-hair);
}

.page-products .pp-toc__inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding-block: 0.7rem;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-products .pp-toc__label {
  flex: none;
  padding-right: 0.85rem;
  border-right: 1px solid var(--pp-hair);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.2em;
  color: var(--muted);
}

.page-products .pp-toc__list {
  display: flex;
  flex: none;
  gap: 0.25rem;
}

.page-products .pp-toc__link {
  display: block;
  padding: 0.4rem 0.7rem;
  border-bottom: 2px solid transparent;
  font-size: 0.8125rem;
  white-space: nowrap;
  text-decoration: none;
  color: rgba(220, 228, 236, 0.7);
  transition: color 0.2s ease, border-color 0.24s ease;
}

.page-products .pp-toc__link:hover,
.page-products .pp-toc__link[data-current] {
  color: var(--amber-bright);
  border-bottom-color: var(--amber);
}

@media (min-width: 1024px) {
  .page-products .pp-toc {
    top: 0;
  }
}

/* ---------- 通用区块 ---------- */

.page-products .pp-sec {
  position: relative;
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
}

.page-products .pp-sec--alt {
  background: linear-gradient(180deg, rgba(23, 50, 74, 0.6), rgba(23, 50, 74, 0));
  border-top: 1px solid var(--pp-hair);
  border-bottom: 1px solid var(--pp-hair);
}

.page-products .pp-head {
  max-width: 46rem;
  margin-bottom: clamp(1.75rem, 4vw, 2.75rem);
}

.page-products .pp-head .section__num {
  display: block;
  margin-bottom: 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.24em;
  color: var(--amber);
}

.page-products .pp-head .section__title {
  font-size: clamp(1.5rem, 4.2vw, 2.25rem);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.01em;
}

.page-products .pp-head__lede {
  margin-top: 0.9rem;
  font-size: 0.9375rem;
  line-height: 1.95;
  color: var(--pp-soft);
}

/* ---------- 图片 ---------- */

.page-products .pp-figure {
  margin: 0 0 clamp(1.5rem, 4vw, 2.25rem);
}

.page-products .pp-figure .figure__frame {
  overflow: hidden;
  border: 1px solid var(--pp-hair);
  border-radius: var(--radius);
  background: var(--ink-800);
}

.page-products .pp-figure .figure__frame img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .pp-figure .figure__cap {
  margin-top: 0.7rem;
  font-size: 0.8125rem;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 01 设备选择 ---------- */

.page-products .pp-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem 1rem;
  margin-bottom: clamp(1.25rem, 3vw, 1.75rem);
}

.page-products .pp-filter .filter__field {
  position: relative;
  display: flex;
  align-items: center;
  flex: 1 1 16rem;
  min-width: 0;
  border: 1px solid var(--pp-edge);
  border-radius: var(--radius);
  background: rgba(14, 34, 51, 0.6);
}

.page-products .pp-filter .filter__icon {
  flex: none;
  padding: 0 0.25rem 0 0.85rem;
  font-size: 0.9375rem;
  color: var(--amber);
}

.page-products .pp-filter .filter__input {
  flex: 1 1 auto;
  min-width: 0;
  width: 100%;
  padding: 0.7rem 0.85rem;
  border: 0;
  background: transparent;
  font: inherit;
  font-size: 0.875rem;
  color: #e7ecf1;
  outline: none;
}

.page-products .pp-filter .filter__input::placeholder {
  color: var(--muted);
}

.page-products .pp-filter .filter__count {
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--celadon);
}

.page-products .pp-devices {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
}

@media (min-width: 640px) {
  .page-products .pp-devices {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1160px) {
  .page-products .pp-devices {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-products .pp-device {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  padding: 1.25rem 1.15rem 1.35rem;
  border: 1px solid var(--pp-edge);
  border-radius: var(--radius);
  background: var(--pp-glass);
  backdrop-filter: blur(8px);
  transition: transform 0.24s ease, border-color 0.24s ease, background 0.24s ease;
}

.page-products .pp-device:hover {
  transform: translateY(-4px);
  border-color: var(--amber);
  background: rgba(23, 50, 74, 0.84);
}

.page-products .pp-device__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.page-products .pp-device__mark {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--celadon);
}

.page-products .pp-device__name {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-products .pp-device__spec {
  display: grid;
  gap: 0.45rem;
  margin: 0;
  padding-top: 0.85rem;
  border-top: 1px solid var(--pp-hair);
}

.page-products .pp-device__spec > div {
  display: grid;
  grid-template-columns: 5.25rem minmax(0, 1fr);
  gap: 0.5rem;
  align-items: baseline;
}

.page-products .pp-device__spec dt {
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-products .pp-device__spec dd {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.6;
  color: #e7ecf1;
}

.page-products .pp-device__note {
  font-size: 0.8125rem;
  line-height: 1.8;
  color: var(--pp-soft);
}

.page-products .pp-empty {
  margin-top: 1.25rem;
  font-size: 0.875rem;
  color: var(--muted);
}

.page-products .pp-empty[hidden] {
  display: none;
}

/* ---------- 02 下载与安装 ---------- */

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

@media (min-width: 720px) {
  .page-products .pp-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.25rem;
  }
}

@media (min-width: 1160px) {
  .page-products .pp-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-products .pp-step {
  position: relative;
  padding: 1.3rem 1.15rem 1.4rem;
  border: 1px solid var(--pp-hair);
  border-top: 2px solid var(--amber);
  border-radius: var(--radius);
  background: rgba(14, 34, 51, 0.55);
}

@media (min-width: 1160px) {
  .page-products .pp-step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: -2px;
    right: -1.25rem;
    width: 1.25rem;
    height: 2px;
    background: var(--amber);
    opacity: 0.5;
  }
}

.page-products .pp-step__no {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--amber-bright);
}

.page-products .pp-step__title {
  margin-top: 0.6rem;
  font-size: 1.0625rem;
  font-weight: 800;
}

.page-products .pp-step__text {
  margin-top: 0.5rem;
  font-size: 0.875rem;
  line-height: 1.85;
  color: var(--pp-soft);
}

.page-products .pp-verify {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1.25rem;
  margin-top: 1.5rem;
  padding: 1rem 1.15rem;
  border: 1px dashed var(--pp-edge);
  border-radius: var(--radius);
  background: rgba(200, 150, 62, 0.06);
}

.page-products .pp-verify__label {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-products .pp-verify__code {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  letter-spacing: 0.1em;
  color: var(--amber-bright);
  word-break: break-all;
}

.page-products .pp-install__media {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.25rem;
  margin-top: clamp(1.75rem, 4vw, 2.5rem);
}

@media (min-width: 900px) {
  .page-products .pp-install__media {
    grid-template-columns: minmax(0, 46fr) minmax(0, 54fr);
    align-items: start;
  }
}

.page-products .pp-install__media .pp-figure {
  margin-bottom: 0;
}

/* ---------- 03 本季权益 ---------- */

.page-products .pp-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  margin-bottom: clamp(1.25rem, 3vw, 1.75rem);
  font-size: 0.8125rem;
  color: var(--pp-soft);
}

.page-products .pp-legend .legend__item {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.page-products .pp-legend .legend__key {
  width: 1.5rem;
  height: 0.5rem;
  border-radius: 1px;
  background: var(--ink-700);
}

.page-products .pp-legend .legend__key--amber {
  background: var(--amber);
}

.page-products .pp-legend .legend__key--open {
  background: var(--celadon);
}

.page-products .pp-legend .legend__key--plain {
  background: rgba(138, 147, 160, 0.45);
}

.page-products .pp-tiers {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
}

@media (min-width: 860px) {
  .page-products .pp-tiers {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem;
  }
}

.page-products .pp-tier {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  padding: 1.35rem 1.2rem 1.5rem;
  border: 1px solid var(--pp-hair);
  border-radius: var(--radius);
  background: rgba(23, 50, 74, 0.45);
}

.page-products .pp-tier--flagship {
  border-color: var(--pp-edge);
  background: linear-gradient(160deg, rgba(200, 150, 62, 0.15), rgba(23, 50, 74, 0.5) 58%);
}

.page-products .pp-tier .card__meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
}

.page-products .pp-tier__name {
  font-size: 1.0625rem;
  font-weight: 800;
}

.page-products .pp-tier__list {
  display: grid;
  gap: 0.55rem;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--pp-soft);
}

.page-products .pp-tier__list li {
  position: relative;
  padding-left: 1.1rem;
}

.page-products .pp-tier__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 1px;
  background: var(--amber);
}

.page-products .pp-note {
  margin-top: clamp(1.25rem, 3vw, 1.75rem);
  padding-left: 0.9rem;
  border-left: 2px solid var(--celadon);
  font-size: 0.875rem;
  line-height: 1.9;
  color: var(--muted);
}

/* ---------- 04 增量对比 ---------- */

.page-products .pp-delta {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.75rem;
}

@media (min-width: 920px) {
  .page-products .pp-delta {
    grid-template-columns: minmax(0, 58fr) minmax(0, 42fr);
    gap: 2.5rem;
    align-items: start;
  }
}

.page-products .pp-delta__list {
  counter-reset: pp-delta;
  display: grid;
  gap: 0.95rem;
  font-size: 0.9375rem;
  line-height: 1.9;
  color: var(--pp-soft);
}

.page-products .pp-delta__list li {
  position: relative;
  padding-left: 2.4rem;
}

.page-products .pp-delta__list li::before {
  counter-increment: pp-delta;
  content: counter(pp-delta, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.12em;
  display: grid;
  place-items: center;
  width: 1.6rem;
  height: 1.6rem;
  border: 1px solid var(--pp-edge);
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  line-height: 1;
  color: var(--amber);
}

.page-products .pp-delta__link {
  margin-top: 1.35rem;
  font-size: 0.875rem;
}

.page-products .pp-delta__link a {
  text-decoration: none;
  color: var(--amber-bright);
  border-bottom: 1px solid var(--pp-edge);
  padding-bottom: 2px;
}

.page-products .pp-delta__link a:hover {
  border-bottom-color: var(--amber-bright);
}

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

.page-products .pp-delta__figure .figure__frame {
  overflow: hidden;
  border: 1px solid var(--pp-edge);
  border-radius: var(--radius);
  background: var(--ink-800);
}

.page-products .pp-delta__figure .figure__cap {
  margin-top: 0.7rem;
  font-size: 0.8125rem;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 05 版本对照 ---------- */

.page-products .pp-table-shell {
  overflow-x: auto;
  padding: clamp(0.75rem, 2vw, 1.25rem);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--text-ink);
  box-shadow: 0 24px 60px -42px rgba(0, 0, 0, 0.9);
}

.page-products .pp-table {
  width: 100%;
  min-width: 40rem;
  border-collapse: collapse;
  font-size: 0.875rem;
  line-height: 1.75;
}

.page-products .pp-table th {
  padding: 0.75rem 0.85rem;
  border-bottom: 2px solid rgba(200, 150, 62, 0.62);
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-align: left;
  white-space: nowrap;
  color: var(--text-ink);
}

.page-products .pp-table td {
  padding: 0.8rem 0.85rem;
  border-bottom: 1px solid rgba(27, 36, 48, 0.1);
  vertical-align: top;
  color: rgba(27, 36, 48, 0.86);
}

.page-products .pp-table tbody tr:nth-child(even) {
  background: var(--paper-dim);
}

.page-products .pp-table tbody tr:hover {
  background: rgba(168, 216, 198, 0.42);
}

.page-products .pp-table__ver {
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: 0.02em;
  white-space: nowrap;
  color: var(--text-ink);
}

.page-products .pp-table__foot {
  margin-top: 0.9rem;
  font-size: 0.8125rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-products .pp-table__foot + .pp-figure {
  margin-top: clamp(1.75rem, 4vw, 2.5rem);
}

/* ---------- 06 折叠问答 ---------- */

.page-products .pp-fold {
  display: grid;
  gap: 0.5rem;
}

.page-products .pp-fold .fold__item {
  overflow: hidden;
  border: 1px solid var(--pp-hair);
  border-radius: var(--radius);
  background: rgba(14, 34, 51, 0.55);
  transition: border-color 0.24s ease;
}

.page-products .pp-fold .fold__item[data-open] {
  border-color: var(--pp-edge);
}

.page-products .pp-fold .fold__btn {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  width: 100%;
  padding: 1rem 1.05rem;
  border: 0;
  background: transparent;
  font: inherit;
  font-size: 0.9375rem;
  text-align: left;
  color: #e7ecf1;
  cursor: pointer;
}

.page-products .pp-fold .fold__index {
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--amber);
}

.page-products .pp-fold .fold__text {
  flex: 1 1 auto;
  line-height: 1.6;
}

.page-products .pp-fold .fold__icon {
  flex: none;
  position: relative;
  width: 0.85rem;
  height: 0.85rem;
}

.page-products .pp-fold .fold__icon::before,
.page-products .pp-fold .fold__icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--amber);
}

.page-products .pp-fold .fold__icon::after {
  transform: rotate(90deg);
  transition: transform 0.24s ease;
}

.page-products .pp-fold .fold__item[data-open] .fold__icon::after {
  transform: rotate(0deg);
}

.page-products .pp-fold .fold__body {
  padding: 0 1.05rem 1.1rem 2.6rem;
  font-size: 0.875rem;
  line-height: 1.9;
  color: var(--pp-soft);
}

/* ---------- 收尾 ---------- */

.page-products .pp-close {
  margin-top: clamp(1.75rem, 4vw, 2.5rem);
  padding-top: 1.25rem;
  border-top: 1px solid var(--pp-hair);
  font-size: 0.9375rem;
  line-height: 1.95;
  color: var(--pp-soft);
}

.page-products .pp-close a {
  padding-bottom: 1px;
  border-bottom: 1px solid var(--pp-edge);
  text-decoration: none;
  color: var(--amber-bright);
}

.page-products .pp-close a:hover {
  border-bottom-color: var(--amber-bright);
}

.page-products .pp-to-top {
  display: block;
  margin: clamp(2rem, 5vw, 3rem) 0 0 auto;
  padding: 0.6rem 1rem;
  border: 1px solid var(--pp-edge);
  border-radius: var(--radius);
  background: rgba(200, 150, 62, 0.08);
  font: inherit;
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  color: var(--amber-bright);
  cursor: pointer;
  transition: background 0.24s ease, color 0.24s ease;
}

.page-products .pp-to-top:hover {
  background: var(--amber);
  color: var(--ink-900);
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pp-device,
  .page-products .pp-toc__link,
  .page-products .pp-to-top,
  .page-products .pp-fold .fold__icon::after {
    transition: none;
  }

  .page-products .pp-device:hover {
    transform: none;
  }
}