.page-products {
  --po-c1: #35E0D0;
  --po-c2: #6FC3FF;
  --po-c3: #F5A524;
  --po-c4: #7E9486;
  --po-c5: #5AEADD;
  --po-c6: #9FB0C0;
  --po-shadow: 0 18px 40px -28px rgba(0, 0, 0, .85);
  padding-bottom: clamp(48px, 8vw, 104px);
  background-color: var(--ink-900);
  overflow-x: clip;
}

/* ---------- 面包屑 ---------- */
.page-products .breadcrumb {
  padding-block: 18px 4px;
  font-size: 13px;
  color: var(--fg-dim);
}

/* ---------- 首屏 ---------- */
.page-products .po-hero {
  position: relative;
  isolation: isolate;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(165deg, rgba(53, 224, 208, .09) 0%, rgba(11, 22, 34, 0) 44%),
    linear-gradient(0deg, rgba(245, 165, 36, .06) 0%, rgba(11, 22, 34, 0) 55%),
    var(--ink-800);
  overflow: hidden;
}

.page-products .po-hero__grid {
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(to right, rgba(34, 53, 74, .62) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(34, 53, 74, .42) 1px, transparent 1px);
  background-size: 68px 68px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .95), rgba(0, 0, 0, .05) 88%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .95), rgba(0, 0, 0, .05) 88%);
  pointer-events: none;
}

.page-products .po-hero__watermark {
  position: absolute;
  right: -8px;
  bottom: -26px;
  z-index: -1;
  font-family: var(--font-display);
  font-size: clamp(90px, 21vw, 260px);
  line-height: .74;
  letter-spacing: -.045em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(53, 224, 208, .26);
  user-select: none;
  pointer-events: none;
}

.page-products .po-hero__inner {
  position: relative;
  padding-block: clamp(48px, 8vw, 96px) clamp(30px, 4.5vw, 48px);
}

.page-products .po-hero__eyebrow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  margin: 0 0 22px;
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--fg-dim);
}

.page-products .po-hero__eyebrow .t-mono {
  padding: 3px 8px;
  color: var(--cyan);
  border: 1px solid rgba(53, 224, 208, .34);
  letter-spacing: .12em;
}

.page-products .po-hero__title {
  max-width: 20ch;
  margin: 0 0 22px;
  font-family: var(--font-display);
  font-size: clamp(30px, 5.6vw, 58px);
  font-weight: 700;
  line-height: 1.16;
  letter-spacing: -.015em;
  color: var(--fg);
}

.page-products .po-hero__lede {
  max-width: 62ch;
  margin: 0 0 36px;
  font-size: clamp(15px, 1.15vw, 16.5px);
  line-height: 1.82;
  color: #c4d2de;
}

.page-products .po-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .po-stat {
  background: var(--ink-900);
  padding: 16px 18px;
}

.page-products .po-stat dt {
  margin-bottom: 6px;
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--fg-dim);
}

.page-products .po-stat dd {
  margin: 0;
  font-size: 30px;
  line-height: 1;
  font-weight: 700;
  color: var(--fg);
}

/* ---------- 吸顶锚点 ---------- */
.page-products .po-anchors {
  position: sticky;
  top: 0;
  z-index: 9;
  background: rgba(11, 22, 34, .95);
  border-bottom: 1px solid var(--line);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.page-products .po-anchors__inner {
  display: flex;
  gap: 2px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-products .po-anchors__inner::-webkit-scrollbar {
  display: none;
}

.page-products .po-anchor {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 13px 13px 11px;
  font-size: 13px;
  color: var(--fg-dim);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  transition: color var(--t-fast) ease, border-color var(--t-fast) ease, background-color var(--t-fast) ease;
}

.page-products .po-anchor__no {
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--sage);
}

.page-products .po-anchor:hover,
.page-products .po-anchor:focus-visible {
  color: var(--fg);
  background-color: var(--ink-800);
  border-bottom-color: var(--cyan);
}

.page-products .po-anchor:hover .po-anchor__no,
.page-products .po-anchor:focus-visible .po-anchor__no {
  color: var(--cyan);
}

/* ---------- 右侧分类色带进度 ---------- */
.page-products .po-rail {
  display: none;
}

/* ---------- 通用章节 ---------- */
.page-products .po-section {
  padding-top: clamp(48px, 7vw, 88px);
}

.page-products .section-head {
  margin-bottom: clamp(24px, 3.4vw, 40px);
}

.page-products .section-head__note {
  max-width: 68ch;
}

/* ---------- 六宫格索引 ---------- */
.page-products .po-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .po-cat {
  position: relative;
  display: block;
  padding: 22px 20px 20px 26px;
  background: var(--ink-800);
  color: inherit;
  text-decoration: none;
  transition: background-color var(--t-fast) ease;
}

.page-products .po-cat:nth-child(1) { --cat: var(--po-c1); }
.page-products .po-cat:nth-child(2) { --cat: var(--po-c2); }
.page-products .po-cat:nth-child(3) { --cat: var(--po-c3); }
.page-products .po-cat:nth-child(4) { --cat: var(--po-c4); }
.page-products .po-cat:nth-child(5) { --cat: var(--po-c5); }
.page-products .po-cat:nth-child(6) { --cat: var(--po-c6); }

.page-products .po-cat__bar {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--cat, var(--sage));
  transition: width var(--t-base) cubic-bezier(.2, .7, .3, 1);
}

.page-products .po-cat:hover,
.page-products .po-cat:focus-visible {
  background: var(--ink-700);
}

.page-products .po-cat:hover .po-cat__bar,
.page-products .po-cat:focus-visible .po-cat__bar {
  width: 6px;
}

.page-products .po-cat__idx {
  display: block;
  margin-bottom: 8px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--cat, var(--sage));
}

.page-products .po-cat__name {
  margin: 0 0 10px;
  font-size: 21px;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--fg);
}

.page-products .po-cat__desc {
  margin: 0 0 16px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--fg-dim);
}

.page-products .po-cat__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  margin: 0;
  font-size: 12.5px;
  color: var(--fg-dim);
}

.page-products .po-cat__meta b {
  font-weight: 700;
  color: var(--fg);
}

.page-products .po-cat__groups {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  max-height: 220px;
  opacity: 1;
  overflow: hidden;
}

.page-products .po-cat__groups li {
  padding: 4px 9px;
  font-size: 12.5px;
  color: #b8c6d3;
  background: rgba(126, 148, 134, .13);
  border: 1px solid rgba(126, 148, 134, .3);
}

/* ---------- 分类逐项展开 ---------- */
.page-products .po-block__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 16px;
  padding-bottom: 16px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.page-products .po-block__bar {
  align-self: stretch;
  width: 4px;
  min-height: 26px;
  background: var(--sage);
}

.page-products .po-block__bar[data-cat="1"] { background: var(--po-c1); }
.page-products .po-block__bar[data-cat="2"] { background: var(--po-c2); }
.page-products .po-block__bar[data-cat="3"] { background: var(--po-c3); }
.page-products .po-block__bar[data-cat="4"] { background: var(--po-c4); }
.page-products .po-block__bar[data-cat="5"] { background: var(--po-c5); }
.page-products .po-block__bar[data-cat="6"] { background: var(--po-c6); }

.page-products .po-block__idx {
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--fg-dim);
}

.page-products .po-block__title {
  margin: 0;
  font-size: clamp(23px, 3vw, 32px);
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--fg);
}

.page-products .po-block__meta {
  margin: 0 0 0 auto;
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--fg-dim);
}

.page-products .po-block__cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 44px);
}

.page-products .po-block__sub {
  margin: 0 0 10px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .07em;
  color: var(--cyan);
}

.page-products .po-block__sub ~ .po-block__sub {
  margin-top: 24px;
}

.page-products .po-block__col p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.82;
  color: #c4d2de;
}

.page-products .po-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .po-chips li {
  padding: 6px 12px;
  font-size: 13.5px;
  color: #d5e0ea;
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-left: 3px solid var(--sage);
}

.page-products .po-block__sample {
  margin-top: 20px;
  padding: 10px 14px;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--amber);
  background: var(--ink-800);
  border-left: 3px solid var(--amber);
}

.page-products .po-dive {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-products .po-dive li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 2px;
  font-size: 14.5px;
  color: #c4d2de;
  border-bottom: 1px solid var(--line);
}

.page-products .po-dive li span {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  display: inline-grid;
  place-items: center;
  font-size: 12px;
  color: var(--ink-900);
  background: var(--sage);
}

.page-products .po-dive li:last-child span {
  color: var(--ink-900);
  background: var(--cyan);
}

/* ---------- 编号与色带 ---------- */
.page-products .po-org {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .po-org__item {
  padding: 26px 22px;
  background: var(--ink-800);
}

.page-products .po-org__title {
  margin: 0 0 14px;
  font-size: 17px;
  font-weight: 700;
  color: var(--fg);
}

.page-products .po-org__item p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.82;
  color: var(--fg-dim);
}

.page-products .po-org__item p:last-child {
  margin-bottom: 0;
}

/* ---------- 下钻示例 ---------- */
.page-products .po-drill__lede {
  max-width: 70ch;
  margin: 0 0 clamp(24px, 3.4vw, 36px);
  font-size: 15.5px;
  line-height: 1.82;
  color: #c4d2de;
}

.page-products .po-drill {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 40px);
  padding: clamp(22px, 3vw, 32px);
  background: var(--ink-800);
  border: 1px solid var(--line);
}

.page-products .po-drill__svg {
  width: 100%;
  height: auto;
  max-width: 720px;
  margin: 0 auto;
  overflow: visible;
}

.page-products .po-drill__svg line {
  stroke: var(--line);
  stroke-width: 1.5;
}

.page-products .po-drill__arrow {
  fill: var(--cyan);
}

.page-products .po-drill__svg rect {
  fill: var(--ink-900);
  stroke: var(--line);
  stroke-width: 1.25;
}

.page-products .po-drill__svg rect:nth-of-type(1) { stroke: var(--po-c1); }
.page-products .po-drill__svg rect:nth-of-type(2) { stroke: var(--po-c2); }
.page-products .po-drill__svg rect:nth-of-type(3) { stroke: var(--po-c5); }

.page-products .po-drill__t1 {
  font-family: var(--font-body);
  font-size: 17px;
  font-weight: 700;
  fill: var(--fg);
}

.page-products .po-drill__t2 {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .04em;
  fill: var(--fg-dim);
}

.page-products .po-drill__steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 20px;
}

.page-products .po-drill__steps li {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 0 14px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.page-products .po-drill__steps li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-products .po-drill__n {
  grid-row: span 2;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--cyan);
}

.page-products .po-drill__steps h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--fg);
}

.page-products .po-drill__steps p {
  grid-column: 2;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--fg-dim);
}

/* ---------- 玩法归属对照 ---------- */
.page-products .po-map__lede {
  max-width: 70ch;
  margin: 0 0 clamp(20px, 3vw, 30px);
  font-size: 15.5px;
  line-height: 1.82;
  color: #c4d2de;
}

.page-products .po-map__cap {
  padding: 0 0 12px;
  font-size: 13px;
  text-align: left;
  color: var(--fg-dim);
}

.page-products .po-map tbody th[scope="row"] {
  font-weight: 700;
  color: var(--fg);
  white-space: nowrap;
}

.page-products .po-map .tag-sage {
  display: inline-block;
  white-space: nowrap;
}

.page-products .po-map td {
  font-size: 14px;
}

/* ---------- 反馈 ---------- */
.page-products .po-feedback {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 44px);
}

.page-products .po-feedback__sub {
  margin: 0 0 14px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .07em;
  color: var(--cyan);
}

.page-products .po-feedback__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-products .po-feedback__list li {
  padding: 14px 2px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--fg-dim);
  border-bottom: 1px solid var(--line);
}

.page-products .po-feedback__list b {
  display: inline-block;
  margin-right: 8px;
  color: var(--fg);
}

.page-products .po-flow {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: poflow;
}

.page-products .po-flow li {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 12px;
  padding: 12px 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--fg-dim);
  border-bottom: 1px solid var(--line);
}

.page-products .po-flow li:last-child {
  border-bottom: 0;
}

.page-products .po-flow li > .t-mono {
  font-size: 13px;
  color: var(--sage);
}

.page-products .po-flow a {
  color: var(--link);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-products .po-flow a:hover {
  color: var(--cyan);
}

.page-products .po-feedback__note {
  margin: 16px 0 0;
  font-size: 13px;
  color: var(--fg-dim);
}

/* ---------- 图片 ---------- */
.page-products .po-figure {
  margin: clamp(28px, 4vw, 44px) 0 0;
}

.page-products .po-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-products .po-figure__cap {
  margin-top: 12px;
  padding-left: 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--fg-dim);
  border-left: 2px solid var(--sage);
}

/* ---------- 结尾引导 ---------- */
.page-products .po-cta {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-top: clamp(48px, 7vw, 88px);
  padding: clamp(26px, 3.4vw, 40px);
  background:
    linear-gradient(120deg, rgba(53, 224, 208, .1) 0%, rgba(11, 22, 34, 0) 58%),
    var(--ink-800);
  border: 1px solid var(--line);
  border-left: 4px solid var(--cyan);
}

.page-products .po-cta__title {
  margin: 0 0 12px;
  font-size: clamp(20px, 2.6vw, 27px);
  font-weight: 700;
  color: var(--fg);
}

.page-products .po-cta__text p {
  max-width: 62ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--fg-dim);
}

.page-products .po-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-products .po-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

@media (min-width: 768px) {
  .page-products .po-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .po-block__cols {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  }

  .page-products .po-feedback {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
}

@media (min-width: 1000px) {
  .page-products .po-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

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

  .page-products .po-hero__stats {
    max-width: 760px;
  }
}

@media (hover: hover) and (min-width: 1000px) {
  .page-products .po-cat__groups {
    max-height: 0;
    opacity: 0;
    margin-top: 0;
    transition: max-height var(--t-base) cubic-bezier(.2, .7, .3, 1),
                opacity var(--t-base) ease,
                margin-top var(--t-base) ease;
  }

  .page-products .po-cat:hover .po-cat__groups,
  .page-products .po-cat:focus-visible .po-cat__groups {
    max-height: 160px;
    opacity: 1;
    margin-top: 14px;
  }
}

@media (min-width: 1400px) {
  .page-products .po-rail {
    position: fixed;
    right: 14px;
    top: 50%;
    z-index: 6;
    display: grid;
    gap: 10px;
    transform: translateY(-50%);
    pointer-events: none;
  }

  .page-products .po-rail span {
    display: block;
    width: 3px;
    height: 30px;
    background: var(--sage);
    opacity: .5;
  }

  .page-products .po-rail span:nth-child(1) { background: var(--po-c1); }
  .page-products .po-rail span:nth-child(2) { background: var(--po-c2); }
  .page-products .po-rail span:nth-child(3) { background: var(--po-c3); }
  .page-products .po-rail span:nth-child(4) { background: var(--po-c4); }
  .page-products .po-rail span:nth-child(5) { background: var(--po-c5); }
  .page-products .po-rail span:nth-child(6) { background: var(--po-c6); }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .po-cat,
  .page-products .po-cat__bar,
  .page-products .po-anchor,
  .page-products .po-cat__groups {
    transition: none;
  }
}
<<<END>>>