.page-products {
  --pp-rule: 1px solid var(--line-600);
  --pp-num-w: 2.75rem;
  display: block;
  color: var(--paper-050);
  overflow-x: clip;
}

.page-products .container {
  padding-right: var(--pad-x);
}

/* ---------- 首屏 ---------- */
.page-products .pp-hero {
  display: grid;
  gap: var(--gap);
  padding: clamp(18px, 3.5vw, 36px) 0 clamp(26px, 4.5vw, 52px);
  border-bottom: var(--line-thick);
}

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

.page-products .pp-hero h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(26px, 6.4vw, 54px);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: 0.03em;
  color: var(--paper-050);
  text-wrap: balance;
}

.page-products .pp-hero__lead {
  margin: 16px 0 0;
  max-width: 48em;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.8;
  color: var(--slate-400);
}

.page-products .pp-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.page-products .pp-hero__aside {
  min-width: 0;
  padding: 16px 18px 18px;
  background: var(--panel-700);
  border: var(--line-thick);
  box-shadow: var(--shadow-hard);
}

.page-products .pp-hero__aside-title {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--cyan-200);
  text-transform: uppercase;
}

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

.page-products .pp-mini li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 9px 0;
  border-top: var(--pp-rule);
}

.page-products .pp-mini li:first-child {
  border-top: 0;
}

.page-products .pp-mini__k {
  font-size: 14px;
  color: var(--slate-400);
}

.page-products .pp-mini__v {
  font-size: 15px;
  font-weight: 700;
  color: var(--cyan-400);
  white-space: nowrap;
}

.page-products .pp-hero__aside-note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: var(--pp-rule);
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate-400);
}

/* ---------- 章节骨架 ---------- */
.page-products .pp-section {
  padding: clamp(26px, 4.6vw, 56px) 0;
  border-bottom: var(--pp-rule);
}

.page-products .pp-section__head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-products .pp-section__head > .section-num {
  font-family: var(--font-mono);
  font-size: clamp(28px, 5vw, 46px);
  line-height: 0.9;
  color: var(--cyan-400);
  letter-spacing: -0.02em;
}

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

.page-products .pp-section__intro h2 {
  margin: 6px 0 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 3.4vw, 31px);
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: 0.04em;
  color: var(--paper-050);
}

.page-products .pp-section__intro p:not(.eyebrow) {
  margin: 12px 0 0;
  max-width: 56em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--slate-400);
}

/* ---------- 图片位 ---------- */
.page-products .pp-figure {
  margin: 0 0 clamp(20px, 3vw, 32px);
}

.page-products .pp-figure .figure__media {
  background: var(--ink-900);
  border: var(--line-thick);
  box-shadow: var(--shadow-hard);
}

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

.page-products .pp-figure .figure__caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--slate-400);
}

/* ---------- 01 注册四步 ---------- */
.page-products .pp-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .pp-step {
  display: grid;
  grid-template-columns: var(--pp-num-w) minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-top: var(--pp-rule);
}

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

.page-products .pp-step__num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 5vw, 38px);
  line-height: 1;
  color: var(--cyan-400);
  letter-spacing: -0.04em;
}

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

.page-products .pp-step__body h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(17px, 2.4vw, 21px);
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--paper-050);
}

.page-products .pp-step__body p {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--slate-400);
}

.page-products .pp-step__check {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  padding: 8px 12px;
  background: var(--ink-900);
  border-left: 3px solid var(--cyan-400);
}

.page-products .pp-step__check .mono {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--cyan-200);
}

/* ---------- 02 六栏目错位网格 ---------- */
.page-products .pp-cols {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  padding-bottom: 20px;
}

.page-products .pp-col {
  min-width: 0;
  background: var(--panel-700);
  border: var(--line-thick);
  box-shadow: var(--shadow-hard);
  transition: transform 180ms ease, border-color 180ms ease;
}

.page-products .pp-col:hover,
.page-products .pp-col:focus-within {
  border-color: var(--cyan-400);
}

.page-products .pp-col__btn {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 14px 16px;
  background: transparent;
  border: 0;
  color: inherit;
  text-align: left;
  cursor: pointer;
  font-family: var(--font-body);
}

.page-products .pp-col__num {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--cyan-400);
  flex: none;
}

.page-products .pp-col__name {
  flex: 1 1 auto;
  min-width: 0;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--paper-050);
}

.page-products .pp-col__sign {
  flex: none;
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  font-size: 15px;
  color: var(--cyan-400);
  border: 1px solid var(--line-600);
  transition: border-color 160ms ease, background 160ms ease;
}

.page-products .pp-col__btn:hover .pp-col__sign,
.page-products .pp-col__btn:focus-visible .pp-col__sign {
  border-color: var(--cyan-400);
  background: var(--ink-900);
}

.page-products .pp-col__panel {
  padding: 0 16px 16px;
  border-left: 2px solid var(--cyan-400);
  margin-left: 16px;
  margin-right: 16px;
}

.page-products .pp-col__panel > p {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--slate-400);
}

.page-products .pp-col__stamp {
  margin: 12px 0 0;
  display: inline-block;
  padding: 3px 8px;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--amber-400);
  border: 1px solid var(--amber-400);
}

.page-products .pp-list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
}

.page-products .pp-list li {
  position: relative;
  padding-left: 16px;
  margin-top: 7px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--paper-050);
}

.page-products .pp-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 7px;
  border: 1px solid var(--cyan-400);
}

.page-products .pp-list--tight li {
  color: var(--slate-400);
}

/* ---------- 03 双端对照 ---------- */
.page-products .pp-section--teal {
  background: var(--teal-800);
  border-top: 2px solid var(--teal-line);
  border-bottom: 2px solid var(--teal-line);
  margin-inline: calc(-1 * var(--pad-x));
  padding-inline: var(--pad-x);
}

.page-products .pp-dual {
  display: block;
  width: 100%;
  height: auto;
  max-height: 220px;
  margin: 0 0 18px;
}

.page-products .pp-dual__grid rect {
  fill: none;
  stroke: var(--cyan-400);
  stroke-width: 1.5;
}

.page-products .pp-dual__stack rect {
  fill: none;
  stroke: var(--amber-400);
  stroke-width: 1.5;
}

.page-products .pp-dual__axis {
  stroke: var(--teal-line);
  stroke-width: 1;
  stroke-dasharray: 3 4;
}

.page-products .pp-track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(232px, 82%);
  gap: 14px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;
  padding-bottom: 14px;
  -webkit-overflow-scrolling: touch;
}

.page-products .pp-track:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: 4px;
}

.page-products .pp-cmp {
  scroll-snap-align: start;
  min-width: 0;
  background: var(--ink-800);
  border: 2px solid var(--teal-line);
  padding: 14px 14px 16px;
}

.page-products .pp-cmp__head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--teal-line);
}

.page-products .pp-cmp__num {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan-400);
}

.page-products .pp-cmp__head h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--paper-050);
}

.page-products .pp-cmp__row {
  margin-top: 12px;
}

.page-products .pp-cmp__label {
  display: inline-block;
  margin-bottom: 4px;
  padding: 1px 7px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--cyan-200);
  border: 1px solid var(--teal-line);
}

.page-products .pp-cmp__row:last-child .pp-cmp__label {
  color: var(--amber-200);
}

.page-products .pp-cmp__row p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--slate-400);
}

.page-products .pp-mobile-note {
  margin-top: clamp(22px, 3.5vw, 36px);
  align-items: start;
}

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

.page-products .pp-mobile-note__text h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(18px, 2.6vw, 24px);
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--paper-050);
}

.page-products .pp-mobile-note__text p {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--slate-400);
}

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

/* ---------- 04 每周三更新 ---------- */
.page-products .pp-week {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 5px;
  margin: 0 0 clamp(20px, 3vw, 30px);
  padding: 0;
}

.page-products .pp-week__day {
  position: relative;
  display: grid;
  place-items: center;
  gap: 3px;
  min-width: 0;
  padding: 12px 2px 10px;
  background: var(--ink-900);
  border: 1px solid var(--line-600);
  font-size: 14px;
  color: var(--slate-400);
  transition: border-color 160ms ease, color 160ms ease;
}

.page-products .pp-week__day:hover,
.page-products .pp-week__day:focus-visible {
  border-color: var(--cyan-400);
  color: var(--paper-050);
  outline: none;
}

.page-products .pp-week__day::after {
  content: attr(data-state);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 8px;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--paper-050);
  background: var(--ink-900);
  border: 1px solid var(--line-600);
  opacity: 0;
  pointer-events: none;
  transition: opacity 160ms ease;
  z-index: 3;
}

.page-products .pp-week__day:hover::after,
.page-products .pp-week__day:focus-visible::after {
  opacity: 1;
}

.page-products .pp-week__day.is-update {
  background: var(--amber-400);
  border-color: var(--amber-400);
  color: var(--ink-900);
}

.page-products .pp-week__day.is-update:hover,
.page-products .pp-week__day.is-update:focus-visible {
  border-color: var(--amber-200);
  color: var(--ink-900);
}

.page-products .pp-week__tag {
  font-size: 10px;
  letter-spacing: 0.04em;
  padding: 0 3px;
  background: var(--ink-900);
  color: var(--amber-200);
}

.page-products .pp-update-grid {
  margin-top: 6px;
}

.page-products .pp-card {
  min-width: 0;
  padding: 16px;
  background: var(--panel-700);
  border: var(--line-thick);
  box-shadow: var(--shadow-hard);
}

.page-products .pp-card__k {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--amber-400);
}

.page-products .pp-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--slate-400);
}

/* ---------- 05 设备要求 ---------- */
.page-products .pp-req {
  align-items: start;
}

.page-products .pp-spec {
  margin: 0;
  min-width: 0;
  border-top: var(--line-thick);
  border-bottom: var(--line-thick);
}

.page-products .pp-spec__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: baseline;
  padding: 12px 2px;
  border-top: var(--pp-rule);
}

.page-products .pp-spec__row:first-child {
  border-top: 0;
}

.page-products .pp-spec dt {
  font-size: 14px;
  color: var(--slate-400);
}

.page-products .pp-spec dd {
  margin: 0;
  font-size: 14px;
  font-weight: 700;
  color: var(--paper-050);
  text-align: right;
}

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

.page-products .pp-section .note {
  margin-top: clamp(18px, 3vw, 28px);
  background: var(--ink-900);
  border-left: 3px solid var(--amber-400);
  color: var(--slate-400);
  font-size: 14px;
  line-height: 1.78;
}

/* ---------- 06 版本号 ---------- */
.page-products .pp-section--version {
  background: var(--panel-700);
  border-top: 2px solid var(--line-600);
  border-bottom: 2px solid var(--line-600);
  margin-inline: calc(-1 * var(--pad-x));
  padding-inline: var(--pad-x);
}

.page-products .pp-version {
  display: grid;
  gap: 16px;
  padding: 18px;
  background: var(--ink-900);
  border: var(--line-thick);
  box-shadow: var(--shadow-hard);
}

.page-products .pp-version__stamp {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-content: start;
}

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

.page-products .pp-version__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--slate-400);
}

.page-products .pp-version__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

/* ---------- 结尾 ---------- */
.page-products .pp-section--cta {
  border-bottom: 0;
  padding-bottom: clamp(30px, 5vw, 60px);
}

.page-products .pp-cta {
  display: grid;
  gap: 18px;
  padding: clamp(18px, 3vw, 28px);
  background: var(--ink-900);
  border: var(--line-thick);
  border-left: 4px solid var(--cyan-400);
  box-shadow: var(--shadow-hard);
}

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

.page-products .pp-cta__text h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 3vw, 27px);
  font-weight: 800;
  letter-spacing: 0.05em;
  color: var(--paper-050);
}

.page-products .pp-cta__text p {
  margin: 10px 0 0;
  max-width: 52em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--slate-400);
}

.page-products .pp-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-products .pp-cta__actions .btn {
  flex: 1 1 auto;
  justify-content: center;
  text-align: center;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products .pp-track {
    grid-auto-columns: minmax(260px, 46%);
  }

  .page-products .pp-cta__actions .btn {
    flex: 0 0 auto;
  }

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

  .page-products .pp-version {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: start;
  }

  .page-products .pp-version__stamp {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (min-width: 760px) {
  .page-products .pp-cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .pp-step {
    grid-template-columns: 4rem minmax(0, 1fr);
    gap: 20px;
    padding: 22px 0;
  }

  .page-products .pp-dual {
    max-height: 260px;
  }
}

@media (min-width: 980px) {
  .page-products .pp-hero {
    grid-template-columns: minmax(0, 58fr) minmax(0, 42fr);
    align-items: start;
    gap: clamp(24px, 3.4vw, 52px);
  }

  .page-products .pp-track {
    grid-auto-columns: minmax(280px, 31%);
  }

  .page-products .pp-section__head {
    gap: 20px;
  }
}

@media (min-width: 1080px) {
  .page-products .pp-cols {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    padding-bottom: 34px;
  }

  .page-products .pp-col:nth-child(3n + 2) {
    transform: translateY(16px);
  }

  .page-products .pp-col:nth-child(3n) {
    transform: translateY(8px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pp-col,
  .page-products .pp-col__sign,
  .page-products .pp-week__day,
  .page-products .pp-week__day::after {
    transition: none;
  }

  .page-products .pp-col:nth-child(3n + 2),
  .page-products .pp-col:nth-child(3n) {
    transform: none;
  }
}