.page-products {
  --po-line: rgba(31, 31, 27, 0.16);
  --po-soft: rgba(31, 31, 27, 0.06);
  --po-radius: 0px;
  --po-gap: clamp(14px, 2.4vw, 26px);
}

/* ---------- 首屏 ---------- */
.page-products .po-hero {
  background: linear-gradient(180deg, var(--paper) 0%, var(--cream) 100%);
  padding-block: clamp(22px, 4vw, 48px) clamp(30px, 5vw, 64px);
}

.page-products .po-hero .breadcrumb {
  margin-bottom: clamp(14px, 2vw, 22px);
}

.page-products .po-hero__grid {
  position: relative;
  display: grid;
  gap: clamp(22px, 3vw, 40px);
  padding: clamp(20px, 3.4vw, 52px);
  background: var(--panel);
  border: 1px solid var(--po-line);
  box-shadow: var(--shadow-panel);
}

.page-products .po-hero__grid::before {
  content: "";
  position: absolute;
  inset: 8px 8px auto 8px;
  height: 1px;
  background: repeating-linear-gradient(
    to right,
    var(--edge) 0 14px,
    transparent 14px 26px
  );
}

.page-products .po-hero__lead h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(28px, 6.2vw, 58px);
  line-height: 1.24;
  letter-spacing: 0.03em;
  color: var(--ink);
  margin: 10px 0 16px;
}

.page-products .po-hero__lead .lede {
  max-width: 46ch;
  color: var(--muted);
  line-height: 1.85;
}

.page-products .po-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-products .po-hero__axis {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-content: flex-start;
  font-family: var(--font-mono);
}

.page-products .po-hero__tick {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 7px 11px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
  background: var(--paper);
  border: 1px solid var(--po-line);
}

.page-products .po-hero__tick b {
  font-size: 15px;
  font-weight: 700;
  color: var(--red);
}

.page-products .po-hero__tick:first-child {
  background: var(--red);
  border-color: var(--red);
  color: var(--cream);
}

.page-products .po-hero__tick:first-child b {
  color: var(--cream);
}

/* ---------- 章节标题通用 ---------- */
.page-products .po-head {
  display: grid;
  gap: 12px;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-products .po-head .section-title {
  font-family: var(--font-display);
  font-size: clamp(24px, 4.2vw, 38px);
  line-height: 1.3;
  letter-spacing: 0.02em;
  color: var(--ink);
  margin: 0;
}

.page-products .po-head__note {
  max-width: 52ch;
  color: var(--muted);
  line-height: 1.8;
  font-size: 15px;
}

/* ---------- 标签页 ---------- */
.page-products .po-tabs {
  border: 1px solid var(--po-line);
  background: var(--panel);
  box-shadow: var(--shadow-panel);
}

.page-products .po-tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  border-bottom: 1px solid var(--po-line);
  background: var(--paper);
}

.page-products .po-tabs .tabs__tab {
  flex: 1 1 140px;
  padding: 14px 16px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--muted);
  background: transparent;
  border: 0;
  border-bottom: 3px solid transparent;
  cursor: pointer;
  transition: color 160ms ease, background-color 160ms ease, border-color 160ms ease;
}

.page-products .po-tabs .tabs__tab:hover {
  color: var(--ink);
  background: rgba(201, 151, 28, 0.12);
}

.page-products .po-tabs .tabs__tab[aria-selected="true"] {
  color: var(--red);
  border-bottom-color: var(--red);
  background: var(--panel);
}

.page-products .po-tabs .tabs__tab:focus-visible {
  outline: 2px solid var(--lake);
  outline-offset: -3px;
}

.page-products .po-tabs .tabs__panel {
  padding: clamp(18px, 3vw, 34px);
}

.page-products .po-tabs__lead {
  font-family: var(--font-display);
  font-size: clamp(17px, 2.4vw, 21px);
  line-height: 1.7;
  color: var(--ink);
  margin: 0 0 16px;
}

.page-products .po-tabs__route {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .po-tabs__route li {
  display: grid;
  grid-template-columns: 42px 1fr;
  align-items: baseline;
  gap: 10px;
  padding: 12px 0;
  border-top: 1px solid var(--po-line);
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-products .po-tabs__n {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--lake);
  letter-spacing: 0.06em;
}

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

/* ---------- 栏目面板 ---------- */
.page-products .po-board {
  display: grid;
  gap: var(--po-gap);
}

.page-products .po-col {
  display: grid;
  gap: 14px;
  padding: clamp(18px, 3vw, 30px);
  background: var(--panel);
  border: 1px solid var(--po-line);
  border-top: 3px solid var(--edge);
  box-shadow: var(--shadow-panel);
}

.page-products .po-col__num {
  font-family: var(--font-body);
  font-weight: 900;
  font-size: clamp(40px, 9vw, 62px);
  line-height: 0.82;
  letter-spacing: 0.02em;
  color: var(--muted);
  opacity: 0.7;
}

.page-products .po-col h3 {
  font-family: var(--font-display);
  font-size: clamp(18px, 2.6vw, 23px);
  letter-spacing: 0.02em;
  color: var(--ink);
  margin: 0 0 8px;
}

.page-products .po-col__for {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--lake);
  margin: 0 0 10px;
}

.page-products .po-col__body p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-products .po-col__link {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--gold);
  padding-bottom: 2px;
}

.page-products .po-col__link:hover {
  color: var(--red);
  border-bottom-color: var(--red);
}

.page-products .po-col--lead {
  background: linear-gradient(135deg, rgba(158, 27, 50, 0.1), rgba(217, 79, 43, 0.06) 70%, var(--panel));
  border-top-color: var(--red);
}

.page-products .po-col--lead .po-col__num {
  color: var(--red);
  opacity: 1;
}

.page-products .po-col--lake { border-top-color: var(--lake); }
.page-products .po-col--lake .po-col__num { color: var(--lake); }
.page-products .po-col--gold { border-top-color: var(--gold); }
.page-products .po-col--gold .po-col__num { color: var(--gold); }
.page-products .po-col--sage { border-top-color: var(--sage); }
.page-products .po-col--sage .po-col__num { color: var(--sage); }
.page-products .po-col--orange { border-top-color: var(--orange); }
.page-products .po-col--orange .po-col__num { color: var(--orange); }
.page-products .po-col--ink { border-top-color: var(--ink); }
.page-products .po-col--ink .po-col__num { color: var(--ink); }

/* ---------- 图片 ---------- */
.page-products .po-figure {
  margin: clamp(22px, 3vw, 36px) 0 0;
  border: 1px solid var(--po-line);
  background: var(--paper);
  box-shadow: var(--shadow-panel);
  overflow: hidden;
}

.page-products .po-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-products .po-figure .figure__caption {
  display: block;
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--muted);
  border-top: 1px solid var(--po-line);
}

.page-products .po-figure--side {
  margin-top: 0;
}

.page-products .po-figure--island {
  border-color: rgba(255, 248, 238, 0.24);
  background: rgba(255, 248, 238, 0.06);
  box-shadow: none;
}

.page-products .po-figure--island .figure__caption {
  color: rgba(255, 248, 238, 0.72);
  border-top-color: rgba(255, 248, 238, 0.2);
}

/* ---------- 三步路径 ---------- */
.page-products .po-steps {
  background: var(--paper);
}

.page-products .po-steps__wrap {
  display: grid;
  gap: var(--po-gap);
}

.page-products .po-steps__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--po-gap);
  counter-reset: none;
}

.page-products .po-steps__item {
  position: relative;
  padding: clamp(18px, 3vw, 28px);
  background: var(--cream);
  border-left: 3px solid var(--lake);
  border-top: 1px solid var(--po-line);
  border-right: 1px solid var(--po-line);
  border-bottom: 1px solid var(--po-line);
}

.page-products .po-steps__item:nth-child(2) { border-left-color: var(--orange); }
.page-products .po-steps__item:nth-child(3) { border-left-color: var(--gold); }

.page-products .po-steps__n {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--lake);
  margin-bottom: 8px;
}

.page-products .po-steps__item:nth-child(2) .po-steps__n { color: var(--orange); }
.page-products .po-steps__item:nth-child(3) .po-steps__n { color: var(--gold); }

.page-products .po-steps__item h3 {
  font-family: var(--font-display);
  font-size: clamp(17px, 2.4vw, 21px);
  color: var(--ink);
  margin: 0 0 8px;
}

.page-products .po-steps__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 宽屏适配 ---------- */
.page-products .po-screen__grid {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
}

.page-products .po-screen__text .lede {
  color: var(--muted);
  line-height: 1.85;
  max-width: 48ch;
  margin-bottom: 22px;
}

.page-products .po-breaks {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 4px;
}

.page-products .po-breaks__item {
  display: grid;
  grid-template-columns: 82px 1fr;
  gap: 12px;
  align-items: start;
  padding: 14px 0;
  border-top: 1px solid var(--po-line);
}

.page-products .po-breaks__px {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: 0.02em;
}

.page-products .po-breaks__rule {
  display: none;
}

.page-products .po-breaks__item p {
  grid-column: 2;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-products .po-breaks__item:nth-child(1) .po-breaks__px { color: var(--lake); }
.page-products .po-breaks__item:nth-child(2) .po-breaks__px { color: var(--sage); }
.page-products .po-breaks__item:nth-child(3) .po-breaks__px { color: var(--gold); }
.page-products .po-breaks__item:nth-child(4) .po-breaks__px { color: var(--red); }

.page-products .po-screen__foot {
  margin: 20px 0 0;
  padding-left: 14px;
  border-left: 3px solid var(--gold);
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 老用户中心深色功能岛 ---------- */
.page-products .po-island {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
  padding: clamp(22px, 4vw, 54px);
  background: var(--navy);
  border-top: 3px solid var(--gold);
  box-shadow: var(--shadow-panel);
}

.page-products .po-island__kicker {
  color: var(--gold);
}

.page-products .po-island__title {
  font-family: var(--font-display);
  font-size: clamp(24px, 4.2vw, 36px);
  line-height: 1.3;
  letter-spacing: 0.02em;
  color: var(--cream);
  margin: 10px 0 14px;
}

.page-products .po-island__lede {
  max-width: 46ch;
  color: rgba(255, 248, 238, 0.78);
  line-height: 1.85;
  margin: 0 0 22px;
}

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

.page-products .po-island__list li {
  padding: 14px 0;
  border-top: 1px solid rgba(255, 248, 238, 0.18);
}

.page-products .po-island__list h3 {
  font-family: var(--font-display);
  font-size: 17px;
  color: var(--cream);
  margin: 0 0 6px;
}

.page-products .po-island__list p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(255, 248, 238, 0.72);
}

.page-products .po-island__note {
  margin: 20px 0 0;
  padding: 12px 14px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--cream);
  background: rgba(255, 248, 238, 0.08);
  border-left: 3px solid var(--gold);
}

/* ---------- 索引与归档 ---------- */
.page-products .po-archive__grid {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
}

.page-products .po-archive__text p {
  font-size: 15px;
  line-height: 1.9;
  color: var(--muted);
  margin: 0 0 14px;
}

.page-products .po-archive__ways {
  display: grid;
  gap: 12px;
  margin: 20px 0 22px;
}

.page-products .po-archive__way {
  padding: 14px 16px;
  background: var(--cream);
  border: 1px solid var(--po-line);
  border-left: 3px solid var(--gold);
}

.page-products .po-archive__way p {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-products .po-archive__btn {
  display: inline-block;
}

/* ---------- 场景组合 ---------- */
.page-products .po-scenes__grid {
  display: grid;
  gap: var(--po-gap);
}

.page-products .po-scene {
  padding: clamp(18px, 3vw, 26px);
  background: var(--panel);
  border: 1px solid var(--po-line);
  border-bottom: 3px solid var(--edge);
}

.page-products .po-scene:nth-child(1) { border-bottom-color: var(--red); }
.page-products .po-scene:nth-child(2) { border-bottom-color: var(--lake); }
.page-products .po-scene:nth-child(3) { border-bottom-color: var(--gold); }
.page-products .po-scene:nth-child(4) { border-bottom-color: var(--sage); }

.page-products .po-scene__mark {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--muted);
  padding: 4px 9px;
  border: 1px solid var(--po-line);
  margin-bottom: 12px;
}

.page-products .po-scene h3 {
  font-family: var(--font-display);
  font-size: clamp(17px, 2.4vw, 20px);
  color: var(--ink);
  margin: 0 0 8px;
}

.page-products .po-scene p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-products .po-scenes__foot {
  margin: clamp(20px, 3vw, 32px) 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--po-line);
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

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

/* ---------- 中等屏 ---------- */
@media (min-width: 720px) {
  .page-products .po-head--wide {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    align-items: end;
    gap: clamp(18px, 3vw, 40px);
  }

  .page-products .po-col {
    grid-template-columns: 96px minmax(0, 1fr);
    align-items: start;
    gap: 18px;
  }

  .page-products .po-col__num {
    position: sticky;
    top: 18px;
  }

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

  .page-products .po-col--lead {
    grid-column: 1 / -1;
    grid-template-columns: 140px minmax(0, 1fr);
  }

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

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

/* ---------- 宽屏 ---------- */
@media (min-width: 1080px) {
  .page-products .po-hero__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-products .po-hero__axis {
    justify-content: flex-end;
    border-left: 1px solid var(--po-line);
    padding-left: clamp(18px, 3vw, 36px);
  }

  .page-products .po-hero__tick {
    flex: 1 1 auto;
    justify-content: flex-start;
  }

  .page-products .po-board {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-products .po-col {
    grid-column: span 3;
    grid-template-columns: 84px minmax(0, 1fr);
  }

  .page-products .po-col--lead {
    grid-column: span 4;
  }

  .page-products .po-col--lake {
    grid-column: span 2;
  }

  .page-products .po-col--sage {
    grid-column: span 2;
  }

  .page-products .po-col--orange {
    grid-column: span 2;
  }

  .page-products .po-col--ink {
    grid-column: span 2;
  }

  .page-products .po-screen__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-products .po-breaks__item {
    grid-template-columns: 92px minmax(90px, 1fr) minmax(0, 1.6fr);
    align-items: center;
  }

  .page-products .po-breaks__rule {
    display: block;
    height: 2px;
    background: linear-gradient(to right, var(--edge), var(--gold));
  }

  .page-products .po-breaks__item p {
    grid-column: 3;
  }

  .page-products .po-island {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    align-items: start;
  }

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

  .page-products .po-archive__way {
    display: grid;
    grid-template-columns: 118px minmax(0, 1fr);
    align-items: baseline;
    gap: 6px;
  }

  .page-products .po-archive__way p {
    margin: 0;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-products .po-tabs .tabs__tab {
    transition: none;
  }
}
<<<END>>>