.page-products {
  --pp-pad: clamp(18px, 3vw, 34px);
  --pp-gap: clamp(14px, 2vw, 26px);
  --pp-soft: #121E31;
}

.page-products .pp-top {
  padding-top: clamp(20px, 3vw, 36px);
}

/* ---------- 首屏 ---------- */
.page-products .pp-hero {
  padding: clamp(36px, 7vw, 96px) 0 clamp(28px, 5vw, 64px);
}

.page-products .pp-hero__title {
  margin: 18px 0 24px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--fs-h1);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--paper);
  text-shadow: 0 0 28px rgba(51, 225, 225, 0.18);
}

.page-products .pp-hero__lead {
  max-width: var(--measure);
  font-size: var(--fs-body);
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 三入口横向色带 ---------- */
.page-products .band-strip {
  padding-bottom: clamp(32px, 5vw, 64px);
}

.page-products .band-list {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .band-item {
  display: grid;
  gap: 8px;
  padding: 20px var(--pp-pad);
  border: var(--hair);
  border-top-width: 3px;
  background: var(--panel);
  text-decoration: none;
  color: inherit;
  transition: background-color 180ms var(--ease), border-color 180ms var(--ease),
    color 180ms var(--ease);
}

.page-products .band-item--cyan { border-top-color: var(--cyan); }
.page-products .band-item--amber { border-top-color: var(--amber); }
.page-products .band-item--magenta { border-top-color: var(--magenta); }

.page-products .band-item__code {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.18em;
  color: var(--mist);
}

.page-products .band-item__name {
  font-family: var(--font-display);
  font-size: var(--fs-h4);
  font-weight: 800;
  color: var(--paper);
}

.page-products .band-item__desc {
  font-size: var(--fs-sm);
  line-height: 1.6;
  color: var(--mist);
}

.page-products .band-item:hover,
.page-products .band-item:focus-visible {
  background: var(--cyan);
  border-color: var(--cyan);
  outline: none;
}

.page-products .band-item:hover .band-item__code,
.page-products .band-item:hover .band-item__name,
.page-products .band-item:hover .band-item__desc,
.page-products .band-item:focus-visible .band-item__code,
.page-products .band-item:focus-visible .band-item__name,
.page-products .band-item:focus-visible .band-item__desc {
  color: var(--ink);
}

/* ---------- 通用章节 ---------- */
.page-products .pp-section {
  padding: clamp(40px, 6vw, 88px) 0;
  border-top: var(--hair);
}

.page-products .pp-section__head {
  display: grid;
  gap: 12px;
  max-width: 54em;
  margin-bottom: clamp(24px, 4vw, 44px);
}

.page-products .pp-num {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.2em;
  color: var(--amber);
}

.page-products .pp-section__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--fs-h2);
  font-weight: 800;
  line-height: 1.14;
  color: var(--paper);
}

.page-products .pp-section__lead {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--fs-body);
  line-height: 1.78;
  color: var(--mist);
}

.page-products .sub-title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: var(--fs-h4);
  font-weight: 800;
  color: var(--paper);
}

.page-products .sub-lead {
  margin: 0 0 24px;
  max-width: var(--measure);
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--mist);
}

.page-products .rule {
  margin: clamp(28px, 4vw, 52px) 0;
}

/* ---------- 四档自检 ---------- */
.page-products .check-grid {
  display: grid;
  gap: 2px;
  margin-bottom: 20px;
}

.page-products .check-cell {
  position: relative;
  display: grid;
  gap: 8px;
  padding: var(--pp-pad);
  border: var(--hair);
  background: var(--panel);
  transition: border-color 180ms var(--ease);
}

.page-products .check-cell:hover {
  border-color: var(--cyan);
}

.page-products .check-cell__code {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.16em;
  color: var(--line);
  filter: brightness(2.4);
}

.page-products .check-cell__name {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--fs-h4);
  font-weight: 800;
  color: var(--paper);
}

.page-products .check-cell__desc {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.72;
  color: var(--mist);
}

.page-products .check-cell__result {
  justify-self: start;
  padding: 4px 10px;
  border: 1px solid currentColor;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
}

.page-products .check-cell--ok .check-cell__result { color: var(--cyan); }
.page-products .check-cell--warn .check-cell__result { color: var(--amber); }

.page-products .check-note {
  margin: 0 0 clamp(24px, 4vw, 44px);
  padding-left: 14px;
  border-left: 2px solid var(--cyan);
  max-width: var(--measure);
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 图片容器 ---------- */
.page-products .pp-figure {
  margin: clamp(24px, 4vw, 44px) 0 0;
}

.page-products .pp-figure figcaption {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-products .media-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .pp-figure--side {
  max-width: 420px;
}

/* ---------- 客户端对比 ---------- */
.page-products .pkg-compare {
  display: grid;
  gap: 2px;
}

.page-products .pkg-card {
  padding: var(--pp-pad);
  border: var(--hair);
  background: var(--panel);
  transition: border-color 180ms var(--ease);
}

.page-products .pkg-card:hover {
  border-color: var(--cyan);
}

.page-products .pkg-card__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.page-products .pkg-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  font-weight: 800;
  color: var(--paper);
}

.page-products .pkg-card__size {
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  letter-spacing: 0.08em;
  color: var(--amber);
}

.page-products .pkg-bar {
  height: 10px;
  margin-bottom: 14px;
  background: var(--line);
  overflow: hidden;
}

.page-products .pkg-bar__fill {
  display: block;
  height: 100%;
}

.page-products .pkg-bar__fill--std {
  width: 100%;
  background: var(--grad-pixel);
}

.page-products .pkg-bar__fill--mini {
  width: 62%;
  background: linear-gradient(90deg, var(--cyan), #1b8fa0);
}

.page-products .pkg-card__meta {
  margin: 0;
  max-width: 32em;
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--mist);
}

.page-products .pkg-hint {
  margin: 18px 0 0;
  max-width: var(--measure);
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 版本刻度带 ---------- */
.page-products .version-scale {
  display: grid;
  gap: 2px;
  margin: 0 0 clamp(24px, 4vw, 40px);
  padding: 0;
  list-style: none;
}

.page-products .version-scale__item {
  display: grid;
  gap: 6px;
  padding: 16px var(--pp-pad);
  border: var(--hair);
  border-left: 3px solid var(--magenta);
  background: var(--panel);
  transition: background-color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-products .version-scale__item--next {
  border-left-color: var(--line);
  border-style: dashed;
}

.page-products .version-scale__item:hover {
  background: var(--pp-soft);
  border-left-color: var(--cyan);
}

.page-products .version-scale__code {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.18em;
  color: var(--magenta);
}

.page-products .version-scale__item--next .version-scale__code {
  color: var(--mist);
}

.page-products .version-scale__name {
  font-size: var(--fs-sm);
  color: var(--paper);
}

/* ---------- 老用户中心流程 ---------- */
.page-products .archive-flow {
  display: grid;
  gap: 2px;
}

.page-products .archive-step {
  padding: var(--pp-pad);
  border: var(--hair);
  background: var(--panel);
  transition: border-color 180ms var(--ease);
}

.page-products .archive-step:hover {
  border-color: var(--cyan);
}

.page-products .archive-step__code {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.18em;
  color: var(--amber);
}

.page-products .archive-step__title {
  margin: 10px 0 10px;
  font-family: var(--font-display);
  font-size: var(--fs-h4);
  font-weight: 800;
  color: var(--paper);
}

.page-products .archive-step__text {
  margin: 0;
  max-width: 34em;
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--mist);
}

.page-products .vol-detail {
  margin-top: 14px;
  border-top: 1px dashed var(--line);
  padding-top: 12px;
}

.page-products .vol-detail summary {
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  color: var(--cyan);
  list-style: none;
}

.page-products .vol-detail summary::-webkit-details-marker {
  display: none;
}

.page-products .vol-detail summary::before {
  content: "+ ";
}

.page-products .vol-detail[open] summary::before {
  content: "− ";
}

.page-products .vol-detail p {
  margin: 10px 0 0;
  max-width: 34em;
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 小屏版 ---------- */
.page-products .mini-wrap {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  align-items: start;
}

.page-products .mini-screen {
  width: 100%;
  max-width: 320px;
  padding: 16px;
  border: var(--hair);
  background: var(--pp-soft);
  box-shadow: inset 0 0 0 1px rgba(51, 225, 225, 0.08);
}

.page-products .mini-screen__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 12px;
  margin-bottom: 14px;
  border-bottom: var(--hair);
}

.page-products .mini-screen__title {
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  font-weight: 800;
  color: var(--paper);
}

.page-products .mini-screen__badge {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-products .mini-row {
  display: grid;
  gap: 8px;
  margin-bottom: 14px;
}

.page-products .mini-row__key {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
  color: var(--amber);
}

.page-products .mini-track {
  display: block;
  height: 8px;
  background: var(--line);
  overflow: hidden;
}

.page-products .mini-track__fill {
  display: block;
  height: 100%;
}

.page-products .mini-track__fill--a { width: 100%; background: var(--cyan); }
.page-products .mini-track__fill--b { width: 82%; background: var(--cyan); }
.page-products .mini-track__fill--c { width: 41%; background: var(--magenta); }

.page-products .pin-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.page-products .pin-chip {
  padding: 5px 10px;
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-products .pin-chip--alert {
  border-color: var(--alert);
  color: var(--alert);
}

.page-products .mini-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-products .mini-list li {
  padding-left: 16px;
  border-left: 2px solid var(--line);
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--mist);
}

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

/* ---------- 场景串联 ---------- */
.page-products .scene-list {
  display: grid;
  gap: 2px;
}

.page-products .scene {
  position: relative;
  padding: var(--pp-pad);
  border: var(--hair);
  border-left: 3px solid var(--magenta);
  background: var(--panel);
  transition: background-color 180ms var(--ease), border-left-color 180ms var(--ease);
}

.page-products .scene:hover {
  background: var(--pp-soft);
  border-left-color: var(--cyan);
}

.page-products .scene__code {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.2em;
  color: var(--magenta);
}

.page-products .scene__title {
  margin: 10px 0 10px;
  font-family: var(--font-display);
  font-size: var(--fs-h4);
  font-weight: 800;
  color: var(--paper);
}

.page-products .scene__text {
  margin: 0 0 16px;
  max-width: 40em;
  font-size: var(--fs-sm);
  line-height: 1.78;
  color: var(--mist);
}

.page-products .scene__flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-products .scene__flow span {
  padding: 4px 10px;
  border: 1px solid var(--line);
  color: var(--paper);
}

.page-products .scene__flow i {
  font-style: normal;
  color: var(--cyan);
}

/* ---------- 帮助条 ---------- */
.page-products .help-strip {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
  padding: var(--pp-pad);
  border: var(--hair);
  border-top: 3px solid var(--cyan);
  background: var(--panel);
}

.page-products .help-strip__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  font-weight: 800;
  line-height: 1.2;
  color: var(--paper);
}

.page-products .help-strip__text p {
  margin: 0;
  max-width: 38em;
  font-size: var(--fs-sm);
  line-height: 1.78;
  color: var(--mist);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-products .band-list {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-products .check-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-products .pkg-compare {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-products .version-scale {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-products .archive-flow {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-products .scene-list {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-products .mini-wrap {
    grid-template-columns: minmax(260px, 320px) 1fr;
  }

  .page-products .help-strip {
    grid-template-columns: 1fr auto;
    align-items: center;
  }
}

@media (min-width: 1080px) {
  .page-products .pp-hero__title {
    max-width: 18em;
  }

  .page-products .band-item {
    padding: 26px var(--pp-pad);
  }

  .page-products .archive-flow {
    gap: var(--pp-gap);
    background: transparent;
  }

  .page-products .scene-list {
    gap: var(--pp-gap);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .band-item,
  .page-products .check-cell,
  .page-products .pkg-card,
  .page-products .version-scale__item,
  .page-products .archive-step,
  .page-products .scene {
    transition: none;
  }
}