.page-products {
  --pp-gap: clamp(14px, 2.2vw, 28px);
  --pp-sec: clamp(42px, 6vw, 86px);
  --pp-card: var(--stand);
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-sans);
  overflow-x: clip;
}

.page-products *,
.page-products *::before,
.page-products *::after { box-sizing: border-box; }

.page-products h1,
.page-products h2,
.page-products h3,
.page-products h4 { margin: 0; }

.page-products p { margin: 0; }

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

/* ---------------- 页首 ---------------- */
.page-products .pp-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(20px, 3.6vw, 38px) 0 clamp(32px, 5vw, 62px);
  border-bottom: 1px solid var(--hairline);
}

.page-products .pp-hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  margin: 0;
}

.page-products .pp-hero__bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.24;
  filter: saturate(0.85);
}

.page-products .pp-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(115% 78% at 84% 16%, rgba(255, 179, 71, 0.14), transparent 62%),
    linear-gradient(180deg, rgba(6, 26, 21, 0.5), var(--ink) 84%);
}

.page-products .pp-hero__inner { position: relative; }

.page-products .pp-hero__title {
  font-size: clamp(30px, 5.4vw, 58px);
  line-height: 1.06;
  font-weight: 800;
  letter-spacing: 0.03em;
  margin: 14px 0 0;
  max-width: 16ch;
  color: var(--paper);
}

.page-products .pp-hero__lead {
  margin-top: clamp(14px, 2vw, 22px);
  max-width: 62ch;
  font-size: clamp(14px, 1.1vw, 16.5px);
  line-height: 1.85;
  color: rgba(242, 255, 249, 0.78);
}

.page-products .pp-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(16px, 3vw, 44px);
  margin-top: clamp(22px, 3vw, 34px);
  padding-top: clamp(16px, 2vw, 24px);
  border-top: 1px solid var(--hairline);
}

.page-products .pp-hero__stats > li {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-products .pp-stat__num {
  font-family: var(--font-mono);
  font-size: clamp(22px, 3.2vw, 34px);
  line-height: 1;
  color: var(--cyan);
  letter-spacing: 0.02em;
}

.page-products .pp-stat__label {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

/* ---------------- 版本切换器 ---------------- */
.page-products .pp-switch {
  padding: clamp(28px, 4vw, 52px) 0 clamp(30px, 4.5vw, 60px);
  background: linear-gradient(180deg, var(--ink), var(--stand) 140%);
}

.page-products .pp-switch__title {
  font-size: clamp(16px, 1.6vw, 20px);
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--mint);
  margin-bottom: clamp(16px, 2.4vw, 26px);
}

.page-products .pp-switch__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pp-gap);
}

.page-products .pp-ver {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(18px, 2.4vw, 28px);
  border: 1px solid var(--hairline);
  border-radius: var(--r-m);
  background: var(--pp-card);
}

.page-products .pp-ver--main {
  background:
    linear-gradient(158deg, var(--board), var(--stand) 62%);
  border-color: var(--glass-line);
  box-shadow: 0 26px 60px -34px rgba(53, 241, 208, 0.55);
}

.page-products .pp-ver--main::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: var(--glass);
  pointer-events: none;
}

.page-products .pp-ver--lite {
  border-style: dashed;
  border-color: rgba(255, 179, 71, 0.34);
}

.page-products .pp-ver__top {
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-products .pp-ver__lamp {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(53, 241, 208, 0.16);
  animation: pp-lamp 2.8s var(--ease) infinite;
}

.page-products .pp-ver__lamp--steady {
  background: var(--mint);
  box-shadow: 0 0 0 4px rgba(159, 255, 232, 0.13);
  animation: none;
}

.page-products .pp-ver__lamp--amber {
  background: var(--amber);
  box-shadow: 0 0 0 4px rgba(255, 179, 71, 0.16);
  animation-delay: 0.9s;
}

.page-products .pp-ver__tag {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-products .pp-ver__code {
  font-family: var(--font-mono);
  font-size: clamp(34px, 4.6vw, 52px);
  line-height: 0.95;
  letter-spacing: 0.02em;
  color: var(--cyan);
}

.page-products .pp-ver--lite .pp-ver__code { color: var(--amber); }

.page-products .pp-ver__name {
  font-size: clamp(17px, 1.7vw, 21px);
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--paper);
}

.page-products .pp-ver__fit {
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(242, 255, 249, 0.72);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--hairline);
}

.page-products .pp-ver__list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(242, 255, 249, 0.84);
}

.page-products .pp-ver__list li {
  position: relative;
  padding-left: 16px;
}

.page-products .pp-ver__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  border-radius: 1px;
  background: var(--cyan);
  opacity: 0.7;
}

.page-products .pp-ver--stable .pp-ver__list li::before { background: var(--mint); }
.page-products .pp-ver--lite .pp-ver__list li::before { background: var(--amber); }

.page-products .pp-ver .btn { margin-top: auto; }

/* ---------------- 章节骨架 ---------------- */
.page-products .pp-chapter {
  padding: var(--pp-sec) 0;
  border-top: 1px solid var(--hairline);
}

.page-products .pp-chapter__head {
  display: grid;
  gap: 14px;
  margin-bottom: clamp(22px, 3.4vw, 40px);
}

.page-products .pp-chapter__num {
  font-family: var(--font-mono);
  font-size: clamp(46px, 8vw, 96px);
  line-height: 0.84;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--board);
  -webkit-text-stroke: 1.4px rgba(53, 241, 208, 0.42);
}

.page-products .pp-chapter__intro .section__title {
  margin-top: 8px;
  font-size: clamp(22px, 3vw, 36px);
  line-height: 1.22;
  font-weight: 800;
  letter-spacing: 0.03em;
  color: var(--paper);
}

.page-products .pp-chapter__lead {
  margin-top: 14px;
  max-width: 68ch;
  font-size: clamp(14px, 1.05vw, 16px);
  line-height: 1.9;
  color: rgba(242, 255, 249, 0.76);
}

/* ---------------- 通用图文 ---------------- */
.page-products .pp-fig {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-products .pp-fig__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: var(--r-m);
  border: 1px solid var(--glass-line);
  background: var(--board);
}

.page-products .pp-fig__cap {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  line-height: 1.7;
  color: var(--muted);
}

.page-products .pp-inline-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--glass-line);
  padding-bottom: 1px;
}

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

/* ---------------- 01 新版专区 ---------------- */
.page-products .pp-zone__body {
  display: grid;
  gap: var(--pp-gap);
  grid-template-columns: 1fr;
  margin-bottom: var(--pp-gap);
}

.page-products .pp-zone__graph {
  display: grid;
  place-items: center;
  padding: clamp(14px, 2vw, 26px);
  border: 1px solid var(--hairline);
  border-radius: var(--r-m);
  background: radial-gradient(80% 80% at 50% 45%, rgba(53, 241, 208, 0.08), transparent 70%), var(--stand);
}

.page-products .pp-radial {
  width: 100%;
  max-width: 340px;
  height: auto;
}

.page-products .pp-radial__ring { stroke: rgba(53, 241, 208, 0.24); }
.page-products .pp-radial__spoke { stroke: rgba(53, 241, 208, 0.3); }
.page-products .pp-radial__node circle { fill: var(--cyan); }
.page-products .pp-radial__core { fill: var(--amber); opacity: 0.85; }

.page-products .pp-radial__label text {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  fill: rgba(159, 255, 232, 0.85);
}

.page-products .pp-dims {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pp-gap);
}

.page-products .pp-dim {
  padding: 18px clamp(14px, 2vw, 20px);
  border: 1px solid var(--hairline);
  border-left: 2px solid var(--cyan);
  border-radius: 0 var(--r-s) var(--r-s) 0;
  background: var(--stand);
  transition: background 200ms var(--ease), transform 200ms var(--ease);
}

.page-products .pp-dim:hover {
  background: var(--board);
  transform: translateY(-2px);
}

.page-products .pp-dim__idx {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
  margin-bottom: 8px;
}

.page-products .pp-dim__title {
  font-size: 15.5px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--paper);
  margin-bottom: 8px;
}

.page-products .pp-dim p {
  font-size: 13.5px;
  line-height: 1.78;
  color: rgba(242, 255, 249, 0.72);
}

/* ---------------- 02 稳定版资料库（浅色带） ---------------- */
.page-products .pp-archive {
  background: var(--archive);
  color: var(--archive-ink);
  border-top-color: rgba(37, 71, 60, 0.18);
  border-bottom: 1px solid rgba(37, 71, 60, 0.18);
}

.page-products .pp-archive .pp-chapter__num {
  color: transparent;
  -webkit-text-stroke: 1.4px rgba(37, 71, 60, 0.5);
}

.page-products .pp-archive .eyebrow { color: rgba(37, 71, 60, 0.62); }

.page-products .pp-archive .section__title { color: var(--archive-ink); }

.page-products .pp-archive .pp-chapter__lead { color: rgba(37, 71, 60, 0.82); }

.page-products .pp-archive__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pp-gap);
  margin-bottom: var(--pp-gap);
}

.page-products .pp-fig--archive .pp-fig__img {
  border-color: rgba(37, 71, 60, 0.22);
  background: #d8e8de;
}

.page-products .pp-fig--archive .pp-fig__cap { color: rgba(37, 71, 60, 0.66); }

.page-products .pp-archive__side {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: clamp(16px, 2.2vw, 26px);
  border-radius: var(--r-m);
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid rgba(37, 71, 60, 0.16);
}

.page-products .pp-archive__figures {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 10px;
}

.page-products .pp-archive__figures li {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.page-products .pp-archive__num {
  font-family: var(--font-mono);
  font-size: clamp(20px, 2.6vw, 28px);
  line-height: 1;
  color: #14483a;
}

.page-products .pp-archive__unit {
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: rgba(37, 71, 60, 0.68);
}

.page-products .pp-archive__note {
  font-size: 13px;
  line-height: 1.8;
  color: rgba(37, 71, 60, 0.8);
  padding-top: 14px;
  border-top: 1px dashed rgba(37, 71, 60, 0.24);
}

.page-products .pp-drawers {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-products .pp-drawer {
  position: relative;
  padding: 16px 18px 16px 22px;
  background: #f6fbf8;
  border: 1px solid rgba(37, 71, 60, 0.16);
  border-radius: var(--r-s);
}

.page-products .pp-drawer::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  border-radius: var(--r-s) 0 0 var(--r-s);
  background: #2c6f5b;
  opacity: 0.65;
}

.page-products .pp-drawer__title {
  font-size: 14.5px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: #14483a;
  margin-bottom: 6px;
}

.page-products .pp-drawer p {
  font-size: 13px;
  line-height: 1.78;
  color: rgba(37, 71, 60, 0.78);
}

/* ---------------- 03 关注列表与约赛 ---------------- */
.page-products .pp-watch__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pp-gap);
  margin-bottom: clamp(26px, 4vw, 48px);
}

.page-products .pp-fig--watch .pp-fig__img {
  max-height: 460px;
  object-position: center top;
}

.page-products .pp-watch__rules {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(16px, 2.2vw, 26px);
  border-radius: var(--r-m);
  border: 1px solid var(--glass-line);
  background: var(--glass);
  backdrop-filter: blur(6px);
}

.page-products .pp-watch__sub {
  font-size: clamp(16px, 1.5vw, 19px);
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--mint);
}

.page-products .pp-watch__list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-products .pp-watch__list li {
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(242, 255, 249, 0.78);
  padding-left: 14px;
  border-left: 2px solid rgba(53, 241, 208, 0.35);
}

.page-products .pp-watch__list strong {
  color: var(--paper);
  font-weight: 700;
}

.page-products .pp-watch__hint {
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--muted);
  padding-top: 12px;
  border-top: 1px solid var(--hairline);
}

.page-products .pp-book {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pp-gap);
  padding: clamp(18px, 2.8vw, 34px);
  border: 1px solid var(--glass-line);
  border-radius: var(--r-l);
  background: linear-gradient(170deg, var(--board), var(--stand) 70%);
}

.page-products .pp-book__copy {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.page-products .pp-book__copy .pp-watch__sub { color: var(--amber); }

.page-products .pp-book__lead {
  font-size: 13.5px;
  line-height: 1.85;
  color: rgba(242, 255, 249, 0.78);
}

.page-products .pp-steps {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-products .pp-step {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  padding: 12px 0;
  border-top: 1px dashed rgba(255, 179, 71, 0.28);
}

.page-products .pp-step__idx {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--amber);
  padding-top: 2px;
}

.page-products .pp-step h4 {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--paper);
  margin-bottom: 5px;
}

.page-products .pp-step p {
  font-size: 13px;
  line-height: 1.75;
  color: rgba(242, 255, 249, 0.72);
}

.page-products .pp-book__copy .btn { align-self: flex-start; }

.page-products .pp-fig--book .pp-fig__img { border-color: rgba(255, 179, 71, 0.24); }

/* ---------------- 04 访问与导出 ---------------- */
.page-products .pp-access__ways {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pp-gap);
}

.page-products .pp-way {
  padding: clamp(16px, 2.2vw, 24px);
  border: 1px solid var(--hairline);
  border-radius: var(--r-m);
  background: var(--stand);
  transition: border-color 200ms var(--ease), background 200ms var(--ease);
}

.page-products .pp-way:hover {
  border-color: var(--glass-line);
  background: var(--board);
}

.page-products .pp-way__mark {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  padding: 4px 9px;
  border-radius: 999px;
  border: 1px solid var(--glass-line);
  color: var(--cyan);
  margin-bottom: 12px;
}

.page-products .pp-way--amber .pp-way__mark {
  color: var(--amber);
  border-color: rgba(255, 179, 71, 0.42);
}

.page-products .pp-way--paper .pp-way__mark {
  color: var(--archive-ink);
  background: var(--archive);
  border-color: transparent;
}

.page-products .pp-way h3 {
  font-size: 15.5px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--paper);
  margin-bottom: 8px;
}

.page-products .pp-way p {
  font-size: 13.5px;
  line-height: 1.78;
  color: rgba(242, 255, 249, 0.72);
}

.page-products .pp-access__foot {
  margin-top: clamp(20px, 3vw, 30px);
  font-size: 13px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------------- 05 更新日志 ---------------- */
.page-products .pp-log {
  border: 1px solid var(--glass-line);
  border-radius: var(--r-m);
  background: var(--deep);
  overflow: hidden;
}

.page-products .pp-log__head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--hairline);
  background: rgba(53, 241, 208, 0.05);
}

.page-products .pp-log__dots {
  display: inline-flex;
  gap: 5px;
}

.page-products .pp-log__dots i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--muted);
  opacity: 0.5;
}

.page-products .pp-log__dots i:nth-child(1) { background: var(--alert); opacity: 0.75; }
.page-products .pp-log__dots i:nth-child(2) { background: var(--amber); opacity: 0.75; }
.page-products .pp-log__dots i:nth-child(3) { background: var(--cyan); opacity: 0.75; }

.page-products .pp-log__name {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-products .pp-log__list {
  display: flex;
  flex-direction: column;
}

.page-products .pp-log__row {
  border-bottom: 1px solid rgba(53, 241, 208, 0.09);
}

.page-products .pp-log__list > li:last-child .pp-log__row { border-bottom: 0; }

.page-products .pp-log__row summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 16px;
  cursor: pointer;
  list-style: none;
}

.page-products .pp-log__row summary::-webkit-details-marker { display: none; }

.page-products .pp-log__row summary:hover { background: rgba(53, 241, 208, 0.05); }

.page-products .pp-log__tag {
  flex: none;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: var(--cyan);
  padding: 2px 7px;
  border: 1px solid var(--glass-line);
  border-radius: var(--r-s);
}

.page-products .pp-log__title {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--paper);
}

.page-products .pp-log__chev {
  flex: none;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1;
  color: var(--amber);
  transition: transform 200ms var(--ease);
}

.page-products .pp-log__row[open] .pp-log__chev { transform: rotate(45deg); }

.page-products .pp-log__row p {
  padding: 0 16px 15px 16px;
  font-size: 13px;
  line-height: 1.8;
  color: rgba(242, 255, 249, 0.7);
}

.page-products .pp-support {
  display: grid;
  gap: clamp(16px, 2.6vw, 28px);
  margin-top: clamp(26px, 4vw, 46px);
  padding: clamp(20px, 3vw, 36px);
  border: 1px solid var(--hairline);
  border-radius: var(--r-l);
  background: var(--stand);
}

.page-products .pp-support__copy h3 {
  font-size: clamp(17px, 1.8vw, 22px);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--paper);
  margin-bottom: 10px;
}

.page-products .pp-support__copy p {
  font-size: 13.5px;
  line-height: 1.85;
  color: rgba(242, 255, 249, 0.74);
  max-width: 62ch;
}

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

/* ---------------- 动效 ---------------- */
@keyframes pp-lamp {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.55; transform: scale(0.86); }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pp-ver__lamp { animation: none; }
  .page-products .pp-dim:hover { transform: none; }
  .page-products .pp-log__chev { transition: none; }
}

/* ---------------- 响应式 ---------------- */
@media (min-width: 620px) {
  .page-products .pp-dims { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-products .pp-drawers { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-products .pp-access__ways { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-products .pp-support__actions { justify-content: flex-start; }
}

@media (min-width: 860px) {
  .page-products .pp-switch__grid {
    grid-template-columns: 1.32fr 1fr 0.82fr;
    align-items: stretch;
  }

  .page-products .pp-chapter__head {
    grid-template-columns: 150px minmax(0, 1fr);
    align-items: start;
    gap: clamp(18px, 3vw, 44px);
  }

  .page-products .pp-zone__body {
    grid-template-columns: 1.28fr 1fr;
    align-items: stretch;
  }

  .page-products .pp-archive__grid {
    grid-template-columns: 1.1fr 1fr;
    align-items: start;
  }

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

  .page-products .pp-watch__grid {
    grid-template-columns: 0.82fr 1.18fr;
    align-items: stretch;
  }

  .page-products .pp-fig--watch .pp-fig__img { height: 100%; max-height: none; }

  .page-products .pp-book {
    grid-template-columns: 1.16fr 1fr;
    align-items: center;
  }

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

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

@media (min-width: 1100px) {
  .page-products .pp-hero__lead { font-size: 16.5px; }
  .page-products .pp-dims { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .page-products .pp-dim:first-child { grid-column: span 1; }
}
<<<END>>>