.page-products {
  --prod-pad: clamp(16px, 2.2vw, 24px);
  --prod-gap: clamp(16px, 2.6vw, 30px);
  --prod-radius: 4px;
}

/* ---------- 首屏 ---------- */
.page-products .prod-hero {
  padding: clamp(24px, 4vw, 56px) 0 clamp(20px, 3vw, 36px);
}

.page-products .prod-hero-grid {
  display: grid;
  gap: var(--prod-gap);
  align-items: end;
}

.page-products .prod-hero-copy h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 6.2vw, 62px);
  line-height: 1.06;
  letter-spacing: 0.04em;
  color: var(--mist);
  margin: 12px 0 18px;
  max-width: 15ch;
}

.page-products .prod-lede {
  font-family: var(--font-body);
  font-size: clamp(15px, 1.7vw, 18px);
  line-height: 1.85;
  color: rgba(230, 255, 251, 0.82);
  max-width: 46ch;
  margin: 0;
}

.page-products .prod-snapshot {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .snap {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 14px;
  padding: 12px 14px;
  background: linear-gradient(120deg, rgba(0, 229, 199, 0.09), rgba(11, 30, 58, 0.96));
}

.page-products .snap-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--cyan);
  flex: none;
}

.page-products .snap-value {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--mist);
}

.page-products .prod-hero-media {
  position: relative;
  border-left: 2px solid var(--cyan);
  padding-left: 10px;
}

.page-products .prod-hero-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
  border: 1px solid var(--line);
  filter: saturate(1.05);
}

/* ---------- 价格条带 ---------- */
.page-products .prod-tiers .section-head {
  margin-bottom: clamp(18px, 2.4vw, 30px);
}

.page-products .tier-board {
  display: grid;
  gap: 12px;
}

.page-products .tier-input {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  opacity: 0;
  margin: 0;
  pointer-events: none;
}

.page-products .tier-strip {
  position: relative;
  border: 1px solid var(--line);
  background: linear-gradient(158deg, rgba(16, 42, 76, 0.96), rgba(8, 24, 46, 0.98));
  transition: background 200ms var(--ease), border-color 200ms var(--ease), box-shadow 200ms var(--ease), transform 200ms var(--ease);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}

.page-products .tier-hit {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: var(--prod-pad);
  cursor: pointer;
}

.page-products .tier-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.page-products .tier-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-products .tier-tag {
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--slate);
  border: 1px solid var(--line);
  padding: 3px 8px;
  white-space: nowrap;
}

.page-products .tier-price {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
}

.page-products .tier-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(42px, 8vw, 68px);
  line-height: 0.92;
  letter-spacing: 0.02em;
  color: var(--mist);
}

.page-products .tier-unit {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--slate);
}

.page-products .tier-desc {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.75;
  color: rgba(230, 255, 251, 0.74);
}

.page-products .tier-flag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--orange);
  opacity: 0;
  transition: opacity 180ms var(--ease);
}

.page-products .tier-board #tier-month:checked ~ .tier-strip--month,
.page-products .tier-board #tier-quarter:checked ~ .tier-strip--quarter,
.page-products .tier-board #tier-year:checked ~ .tier-strip--year {
  border-color: var(--line-strong);
  background: linear-gradient(158deg, rgba(0, 229, 199, 0.16), rgba(11, 30, 58, 0.97) 64%);
  box-shadow: 0 26px 50px -34px rgba(0, 229, 199, 0.9);
}

.page-products .tier-board #tier-month:checked ~ .tier-strip--month .tier-num,
.page-products .tier-board #tier-quarter:checked ~ .tier-strip--quarter .tier-num,
.page-products .tier-board #tier-year:checked ~ .tier-strip--year .tier-num {
  color: var(--cyan);
}

.page-products .tier-board #tier-month:checked ~ .tier-strip--month .tier-flag,
.page-products .tier-board #tier-quarter:checked ~ .tier-strip--quarter .tier-flag,
.page-products .tier-board #tier-year:checked ~ .tier-strip--year .tier-flag {
  opacity: 1;
}

.page-products .tier-board #tier-month:focus-visible ~ .tier-strip--month,
.page-products .tier-board #tier-quarter:focus-visible ~ .tier-strip--quarter,
.page-products .tier-board #tier-year:focus-visible ~ .tier-strip--year {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-products .prod-tier-foot {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--slate);
  max-width: 62ch;
  padding-left: 14px;
  border-left: 2px solid rgba(0, 229, 199, 0.5);
}

.page-products .prod-tier-foot a,
.page-products .muted a,
.page-products .faq-a a,
.page-products .prod-faq-note a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

/* ---------- 对照表 ---------- */
.page-products .compare-top {
  display: grid;
  gap: var(--prod-gap);
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-products .compare-head .section-title {
  max-width: 16ch;
}

.page-products .compare-head .muted {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.85;
  max-width: 46ch;
}

.page-products .compare-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border: 1px solid var(--line);
}

.page-products .cmp {
  position: relative;
  padding: clamp(12px, 1.8vw, 20px);
  background: rgba(0, 229, 199, 0.055);
  border: 1px solid var(--line);
}

.page-products .cmp-switch {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  opacity: 0;
  margin: 0;
  pointer-events: none;
}

.page-products .cmp-switch-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  font-size: 14px;
  color: var(--mist);
  cursor: pointer;
}

.page-products .cmp-switch-box {
  position: relative;
  flex: none;
  inline-size: 18px;
  block-size: 18px;
  border: 1px solid var(--line-strong);
  background: var(--ink-800);
  transition: background 160ms var(--ease);
}

.page-products .cmp-switch:checked ~ .cmp-switch-label .cmp-switch-box {
  background: var(--cyan);
}

.page-products .cmp-switch:checked ~ .cmp-switch-label .cmp-switch-box::after {
  content: '✓';
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  color: var(--ink-950);
}

.page-products .cmp-switch:focus-visible ~ .cmp-switch-label {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-products .cmp-switch:checked ~ .cmp-body .cmp-row--same {
  display: none;
}

.page-products .cmp-head {
  display: none;
}

.page-products .cmp-row {
  display: grid;
  gap: 6px;
  padding: 14px 16px;
  border-top: 1px solid var(--line);
  background: rgba(16, 42, 76, 0.92);
}

.page-products .cmp-row:first-of-type {
  border-top: none;
}

.page-products .cmp-row--diff {
  box-shadow: inset 3px 0 0 rgba(0, 229, 199, 0.55);
}

.page-products .cmp-row--same {
  background: rgba(16, 42, 76, 0.5);
}

.page-products .cmp-fee,
.page-products .cmp-benefit {
  font-size: 14px;
  line-height: 1.8;
}

.page-products .cmp-fee {
  color: var(--slate);
}

.page-products .cmp-benefit {
  color: rgba(230, 255, 251, 0.9);
}

.page-products .cmp-fee::before,
.page-products .cmp-benefit::before {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--cyan);
  margin-bottom: 4px;
}

.page-products .cmp-fee::before {
  content: '费用说明';
}

.page-products .cmp-benefit::before {
  content: '权益条款';
}

.page-products .compare-foot {
  margin: clamp(20px, 3vw, 32px) 0 0;
}

.page-products .compare-foot img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  border: 1px solid var(--line);
  opacity: 0.85;
}

/* ---------- 勾选清单 ---------- */
.page-products .pick-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .pick {
  position: relative;
  padding: 16px;
  background: linear-gradient(150deg, rgba(16, 42, 76, 0.96), rgba(8, 24, 46, 0.98));
  border: 1px solid var(--line);
  transition: border-color 180ms var(--ease), background 180ms var(--ease);
}

.page-products .pick-input {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  opacity: 0;
  margin: 0;
  pointer-events: none;
}

.page-products .pick-label {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  flex-wrap: wrap;
}

.page-products .pick-box {
  position: relative;
  flex: none;
  inline-size: 20px;
  block-size: 20px;
  border: 1px solid var(--line-strong);
  background: var(--ink-900);
  transition: background 160ms var(--ease), border-color 160ms var(--ease);
}

.page-products .pick-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-products .pick-hint {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--slate);
  margin-left: auto;
}

.page-products .pick-detail {
  display: none;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
}

.page-products .pick-detail p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--slate);
}

.page-products .pick-input:checked ~ .pick-label .pick-box {
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-products .pick-input:checked ~ .pick-label .pick-box::after {
  content: '✓';
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  color: var(--ink-950);
}

.page-products .pick-input:checked ~ .pick-detail {
  display: block;
}

.page-products .pick-input:checked ~ .pick-label .pick-title {
  color: var(--cyan);
}

.page-products .pick-input:focus-visible ~ .pick-label {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
}

/* ---------- 适用场景 ---------- */
.page-products .scene-grid {
  display: grid;
  gap: var(--prod-gap);
  align-items: start;
}

.page-products .scene-media {
  margin: 0;
  border-top: 2px solid var(--orange);
  padding-top: 10px;
}

.page-products .scene-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 64 / 100;
  object-fit: cover;
  border: 1px solid var(--line);
}

.page-products .scene-media .media-caption {
  margin-top: 10px;
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--slate);
}

.page-products .scene-body .muted {
  margin: 12px 0 24px;
  font-size: 14px;
  line-height: 1.85;
  max-width: 48ch;
}

.page-products .scene-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-products .scene-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  padding: 20px 4px;
  background: var(--ink-800);
}

.page-products .scene-no {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--violet);
  padding-top: 4px;
}

.page-products .scene-text h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  letter-spacing: 0.02em;
  color: var(--mist);
}

.page-products .scene-text p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--slate);
}

/* ---------- 版本演进 ---------- */
.page-products .evo-grid {
  display: grid;
  gap: var(--prod-gap);
  align-items: start;
}

.page-products .evo-body .muted {
  margin: 12px 0 24px;
  font-size: 14px;
  line-height: 1.85;
  max-width: 46ch;
}

.page-products .evo-list {
  list-style: none;
  margin: 0;
  padding: 0 0 0 18px;
  border-left: 1px solid var(--line-strong);
  display: grid;
  gap: 24px;
}

.page-products .evo-item {
  position: relative;
}

.page-products .evo-item::before {
  content: '';
  position: absolute;
  left: -23px;
  top: 6px;
  inline-size: 9px;
  block-size: 9px;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(0, 229, 199, 0.16);
}

.page-products .evo-year {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-products .evo-text h3 {
  margin: 8px 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  letter-spacing: 0.02em;
  color: var(--mist);
}

.page-products .evo-text p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--slate);
  max-width: 48ch;
}

.page-products .evo-media {
  margin: 0;
}

.page-products .evo-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--line);
  border-right: 2px solid var(--violet);
}

/* ---------- 常见问题 ---------- */
.page-products .faq-list {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .faq-item {
  background: rgba(16, 42, 76, 0.94);
}

.page-products .faq-q {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 16px 18px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 15px;
  line-height: 1.6;
  letter-spacing: 0.02em;
  color: var(--mist);
  cursor: pointer;
  list-style: none;
  transition: color 160ms var(--ease);
}

.page-products .faq-q::-webkit-details-marker {
  display: none;
}

.page-products .faq-q::before {
  content: '+';
  flex: none;
  font-family: var(--font-mono);
  font-size: 17px;
  color: var(--cyan);
  transition: transform 200ms var(--ease);
}

.page-products .faq-item[open] .faq-q {
  color: var(--cyan);
}

.page-products .faq-item[open] .faq-q::before {
  content: '−';
}

.page-products .faq-q:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -3px;
}

.page-products .faq-a {
  padding: 0 18px 18px 45px;
}

.page-products .faq-a p {
  margin: 0;
  font-size: 14px;
  line-height: 1.9;
  color: var(--slate);
  max-width: 62ch;
}

.page-products .prod-faq-note {
  margin: 20px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--slate);
}

/* ---------- 桌面 ---------- */
@media (min-width: 860px) {
  .page-products .prod-hero-grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 1fr);
    gap: clamp(24px, 4vw, 56px);
  }

  .page-products .prod-hero-media {
    align-self: stretch;
  }

  .page-products .prod-hero-media img {
    height: 100%;
    aspect-ratio: auto;
    min-height: 340px;
  }

  .page-products .prod-snapshot {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border: 1px solid var(--line);
  }

  .page-products .snap {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .page-products .tier-board {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.18fr) minmax(0, 1.52fr);
    align-items: stretch;
    gap: 14px;
  }

  .page-products .tier-strip {
    display: flex;
  }

  .page-products .tier-hit {
    flex: 1;
    justify-content: space-between;
  }

  .page-products .tier-strip--month .tier-num {
    font-size: clamp(48px, 5vw, 72px);
  }

  .page-products .compare-top {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
    align-items: center;
  }

  .page-products .cmp-head {
    display: grid;
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: clamp(16px, 3vw, 40px);
    position: sticky;
    top: 0;
    z-index: 2;
    padding: 12px 16px;
    background: var(--ink-700);
    border-bottom: 1px solid var(--line-strong);
    font-family: var(--font-editorial);
    font-weight: 600;
    font-size: 13px;
    letter-spacing: 0.14em;
    color: var(--cyan);
  }

  .page-products .cmp-row {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: clamp(16px, 3vw, 40px);
    padding: 16px;
    align-items: start;
  }

  .page-products .cmp-fee::before,
  .page-products .cmp-benefit::before {
    display: none;
  }

  .page-products .cmp-fee {
    font-family: var(--font-editorial);
    font-weight: 600;
    font-size: 14px;
    letter-spacing: 0.02em;
  }

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

  .page-products .scene-grid {
    grid-template-columns: minmax(0, 0.62fr) minmax(0, 1.38fr);
    align-items: center;
  }

  .page-products .evo-grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    align-items: center;
  }
}

@media (min-width: 1080px) {
  .page-products .prod-hero {
    padding-bottom: 48px;
  }

  .page-products .scene-item {
    padding: 22px 12px;
  }

  .page-products .faq-q {
    padding: 18px 22px;
  }

  .page-products .faq-a {
    padding: 0 22px 22px 51px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .tier-strip,
  .page-products .tier-flag,
  .page-products .pick,
  .page-products .pick-box,
  .page-products .cmp-switch-box,
  .page-products .faq-q,
  .page-products .faq-q::before {
    transition: none;
  }
}
<<<PAGE_CSS_END>>>