.page-products {
  --app-navy-soft: rgba(11, 29, 58, 0.08);
  --app-paper-soft: rgba(245, 242, 235, 0.86);
  background: var(--color-white);
}

/* ===== 首屏封面 ===== */
.page-products .app-hero {
  position: relative;
  background: var(--color-navy);
  color: var(--color-white);
  padding: 56px 0 96px;
  overflow: hidden;
}
.page-products .app-hero__grid {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 32px;
  align-items: center;
}
.page-products .app-hero__copy {
  padding: 0 4px;
}
.page-products .app-hero__index {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-gold);
}
.page-products .app-hero__index::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--color-gold);
}
.page-products .app-hero h1 {
  margin: 18px 0 14px;
  font-family: var(--font-head);
  font-size: clamp(2rem, 8vw, 3.4rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
}
.page-products .app-hero__lead {
  max-width: 34em;
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.9;
  color: var(--app-paper-soft);
}
.page-products .app-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}
.page-products .app-hero__stat {
  min-width: 108px;
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(232, 163, 61, 0.45);
}
.page-products .app-hero__stat strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.2rem;
  line-height: 1.2;
  color: var(--color-gold);
}
.page-products .app-hero__stat span {
  display: block;
  margin-top: 4px;
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  color: rgba(245, 242, 235, 0.72);
}
.page-products .app-hero__cta {
  margin-top: 28px;
}
.page-products .app-hero__visual {
  margin: 0;
  background: var(--color-paper);
  padding: 8px;
  box-shadow: var(--shadow-hard);
  transform: rotate(1.2deg);
}
.page-products .app-hero__visual img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-products .app-hero__slant {
  position: absolute;
  right: -6%;
  bottom: -12px;
  width: 72%;
  height: 46px;
  background: var(--color-gold);
  clip-path: polygon(0 0, 100% 0, 96% 100%, 0 100%);
  z-index: 1;
}

/* ===== 面包屑 ===== */
.page-products .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 22px;
  padding-bottom: 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-stone);
}
.page-products .breadcrumb a {
  color: var(--color-gold);
  text-decoration: none;
  border-bottom: 1px dashed currentColor;
}
.page-products .breadcrumb a:hover {
  color: var(--color-navy);
}
.page-products .breadcrumb__sep {
  color: var(--color-stone);
}

/* ===== 通用章节头 ===== */
.page-products .section-head {
  margin-bottom: 34px;
}
.page-products .section-head .section-index {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-gold);
}
.page-products .section-head .section-title {
  margin: 10px 0 8px;
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  line-height: 1.2;
  color: var(--color-navy);
}
.page-products .section-head .section-copy {
  max-width: 42em;
  font-family: var(--font-body);
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--color-stone);
}

/* ===== 版本选择 ===== */
.page-products .version-panel-section {
  background: var(--color-paper);
  padding-bottom: 80px;
}
.page-products .version-tabs {
  margin-top: 22px;
}
.page-products .tab-list {
  display: flex;
  gap: 8px;
  border-bottom: 2px solid var(--color-navy);
}
.page-products .tab-button {
  border: 0;
  border-top: 3px solid transparent;
  background: transparent;
  padding: 12px 22px;
  font-family: var(--font-head);
  font-size: 1rem;
  color: var(--color-stone);
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.page-products .tab-button[aria-selected="true"] {
  border-top-color: var(--color-gold);
  color: var(--color-navy);
  font-weight: 700;
}
.page-products .tab-button:focus-visible {
  outline: 3px solid var(--color-gold);
  outline-offset: 2px;
}
.page-products .tab-panel {
  padding-top: 32px;
}
.page-products .version-lockup {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: center;
}
.page-products .version-phones {
  max-width: 200px;
  margin: 0 auto;
  background: var(--color-navy);
  padding: 12px;
  box-shadow: 8px 8px 0 var(--color-gold);
  transform: rotate(-2deg);
}
.page-products .version-phones img {
  display: block;
  width: 100%;
  height: auto;
  border: 2px solid var(--color-white);
  box-sizing: border-box;
}
.page-products .web-shell {
  max-width: 480px;
  margin: 0 auto;
  background: var(--color-white);
  border: 3px solid var(--color-navy);
  box-shadow: var(--shadow-hard);
  transform: rotate(1.5deg);
}
.page-products .web-shell__bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 12px;
  background: var(--color-navy);
}
.page-products .web-shell__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-gold);
}
.page-products .web-shell__dot:nth-child(2) {
  background: var(--color-moss);
}
.page-products .web-shell__dot:nth-child(3) {
  background: var(--color-clay);
}
.page-products .web-shell__body {
  display: grid;
  gap: 12px;
  padding: 28px 20px;
}
.page-products .web-shell__line {
  display: block;
  height: 12px;
  background: var(--app-navy-soft);
}
.page-products .web-shell__line--short {
  width: 60%;
}
.page-products .web-shell__line--gold {
  width: 80%;
  height: 22px;
  background: var(--color-gold);
}
.page-products .web-shell__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 8px;
}
.page-products .web-shell__card {
  height: 64px;
  border: 2px solid rgba(11, 29, 58, 0.16);
}
.page-products .version-copy h3 {
  margin-bottom: 12px;
  font-family: var(--font-head);
  font-size: 1.4rem;
  color: var(--color-navy);
}
.page-products .version-copy p {
  font-family: var(--font-body);
  font-size: 0.9rem;
  line-height: 1.8;
  color: #4d4d4d;
}
.page-products .version-list {
  margin: 16px 0;
  padding: 0;
  list-style: none;
}
.page-products .version-list li {
  position: relative;
  margin-bottom: 10px;
  padding-left: 22px;
  font-family: var(--font-body);
  font-size: 0.88rem;
  line-height: 1.6;
  color: #3d3d3d;
}
.page-products .version-list li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--color-gold);
  font-family: var(--font-mono);
}
.page-products .version-note {
  margin: 16px 0;
  padding: 8px 12px;
  border-left: 3px solid var(--color-clay);
  background: rgba(198, 123, 79, 0.08);
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: var(--color-clay);
}
.page-products .version-copy .btn {
  margin-top: 8px;
}

/* ===== 射门统计规则 ===== */
.page-products .rule-band {
  background: var(--color-navy);
  color: var(--color-white);
  padding-top: 72px;
  padding-bottom: 80px;
}
.page-products .rule-band .section-title {
  color: var(--color-white);
}
.page-products .rule-band .section-copy {
  color: rgba(245, 242, 235, 0.78);
}
.page-products .rule-track {
  display: grid;
  gap: 18px;
  margin: 32px 0;
}
.page-products .rule-step {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  padding: 20px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(232, 163, 61, 0.28);
  border-left: 4px solid var(--color-gold);
  transform: skewX(-1.5deg);
}
.page-products .rule-step__num {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--color-gold);
}
.page-products .rule-step__body h3 {
  margin-bottom: 6px;
  font-family: var(--font-head);
  font-size: 1.05rem;
  color: var(--color-white);
}
.page-products .rule-step__body p {
  font-family: var(--font-body);
  font-size: 0.88rem;
  line-height: 1.7;
  color: rgba(245, 242, 235, 0.72);
}
.page-products .rule-figure {
  margin: 32px 0 0;
  padding: 8px;
  background: var(--color-paper);
  box-shadow: var(--shadow-hard);
}
.page-products .rule-figure img {
  display: block;
  width: 100%;
  height: auto;
}
.page-products .rule-figure figcaption {
  padding: 8px 4px 2px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-navy);
}

/* ===== 正式版通道说明 ===== */
.page-products .channel-dark {
  background: var(--color-paper);
  padding-top: 72px;
  padding-bottom: 80px;
}
.page-products .channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin: 32px 0 18px;
}
.page-products .channel-card {
  position: relative;
  background: var(--color-white);
  border: 2px solid var(--color-navy);
  box-shadow: 4px 4px 0 rgba(11, 29, 58, 0.24);
  padding: 24px;
}
.page-products .channel-card:nth-child(2) {
  transform: rotate(0.8deg);
}
.page-products .channel-card:nth-child(3) {
  transform: rotate(-0.5deg);
}
.page-products .channel-card:nth-child(4) {
  transform: translateY(4px);
}
.page-products .channel-card__tag {
  position: absolute;
  top: -12px;
  right: 14px;
  padding: 4px 8px;
  background: var(--color-moss);
  color: var(--color-white);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.page-products .channel-card--region .channel-card__tag {
  background: var(--color-gold);
  color: var(--color-navy);
}
.page-products .channel-card--speed .channel-card__tag {
  background: var(--color-clay);
}
.page-products .channel-card h3 {
  margin-bottom: 8px;
  font-family: var(--font-head);
  font-size: 1.05rem;
  color: var(--color-navy);
}
.page-products .channel-card p {
  font-family: var(--font-body);
  font-size: 0.88rem;
  line-height: 1.75;
  color: #555;
}
.page-products .channel-note {
  margin-top: 24px;
  padding: 14px 18px;
  border-left: 4px solid var(--color-gold);
  background: rgba(232, 163, 61, 0.12);
  font-family: var(--font-body);
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--color-navy);
}

/* ===== 功能对比 ===== */
.page-products .compare-panel {
  background: var(--color-white);
  padding-top: 72px;
  padding-bottom: 80px;
}
.page-products .compare-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: center;
  margin: 32px 0;
}
.page-products .compare-gauge {
  margin: 0;
  padding: 16px;
  background: var(--color-paper);
  border: 2px solid var(--color-navy);
  box-shadow: var(--shadow-hard);
}
.page-products .compare-gauge svg {
  display: block;
  width: 100%;
  max-width: 440px;
  height: auto;
  margin: 0 auto;
}
.page-products .compare-gauge figcaption {
  margin-top: 8px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-stone);
}
.page-products .compare-list {
  display: grid;
  gap: 12px;
}
.page-products .compare-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 12px 4px;
  border-bottom: 1px dashed var(--color-stone);
}
.page-products .compare-item__label {
  font-family: var(--font-head);
  font-size: 0.9rem;
  color: var(--color-navy);
}
.page-products .compare-item__value {
  text-align: right;
  font-family: var(--font-body);
  font-size: 0.88rem;
  color: #555;
}
.page-products .compare-item--metric {
  border-left: 3px solid var(--color-gold);
  background: rgba(232, 163, 61, 0.08);
  padding-left: 12px;
}
.page-products .compare-chart {
  margin: 0;
  max-width: 900px;
}
.page-products .compare-chart img {
  display: block;
  width: 100%;
  height: auto;
  border: 2px solid var(--color-navy);
}
.page-products .compare-chart figcaption {
  margin-top: 8px;
  text-align: right;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-stone);
}

/* ===== 下载指引 ===== */
.page-products .download-zone {
  background: var(--color-navy);
  color: var(--color-white);
  padding-top: 72px;
  padding-bottom: 80px;
}
.page-products .download-zone .section-title {
  color: var(--color-white);
}
.page-products .download-zone .section-copy {
  color: rgba(245, 242, 235, 0.78);
}
.page-products .download-track {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin: 32px 0 20px;
}
.page-products .download-step {
  position: relative;
  padding: 24px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(232, 163, 61, 0.3);
  transform: skewX(-1.2deg);
}
.page-products .download-step__num {
  display: block;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 1.6rem;
  line-height: 1;
  color: var(--color-gold);
}
.page-products .download-step h3 {
  margin-bottom: 8px;
  font-family: var(--font-head);
  font-size: 1.05rem;
  color: var(--color-white);
}
.page-products .download-step p {
  font-family: var(--font-body);
  font-size: 0.88rem;
  line-height: 1.75;
  color: rgba(245, 242, 235, 0.75);
}
.page-products .download-zone__note {
  padding: 12px 0 0;
  border-top: 1px solid rgba(232, 163, 61, 0.3);
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-gold);
}

/* ===== 数据流动 ===== */
.page-products .dataflow-strip {
  background: var(--color-paper);
  padding-top: 72px;
  padding-bottom: 80px;
}
.page-products .dataflow-image {
  margin: 32px 0 24px;
  border: 2px solid var(--color-navy);
  box-shadow: var(--shadow-hard);
}
.page-products .dataflow-image img {
  display: block;
  width: 100%;
  height: auto;
}
.page-products .dataflow-facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 28px;
}
.page-products .data-flow-card {
  padding: 18px;
  background: var(--color-white);
  border-top: 4px solid var(--color-gold);
}
.page-products .data-flow-card h3 {
  margin-bottom: 6px;
  font-family: var(--font-head);
  font-size: 0.9rem;
  color: var(--color-navy);
}
.page-products .data-flow-card p {
  font-family: var(--font-body);
  font-size: 0.85rem;
  line-height: 1.7;
  color: #555;
}
.page-products .dataflow-proof {
  grid-column: 1 / -1;
  padding: 16px 18px;
  background: var(--color-navy);
  border-left: 4px solid var(--color-gold);
  font-family: var(--font-body);
  font-size: 0.85rem;
  line-height: 1.8;
  color: var(--color-white);
}
.page-products .dataflow-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 24px 0;
}
.page-products .dataflow-help {
  padding-left: 12px;
  border-left: 3px solid var(--color-gold);
  font-family: var(--font-body);
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--color-stone);
}

/* ===== 通用按钮与焦点 ===== */
.page-products .btn {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.page-products .btn:hover {
  transform: translateY(-2px);
}
.page-products .btn:focus-visible {
  outline: 3px solid var(--color-gold);
  outline-offset: 2px;
}

/* ===== 桌面端布局 ===== */
@media (min-width: 768px) {
  .page-products .app-hero {
    padding-top: 76px;
    padding-bottom: 110px;
  }
  .page-products .app-hero__grid {
    grid-template-columns: 1fr 1fr;
    gap: 48px;
  }
  .page-products .app-hero__visual {
    transform: rotate(1.2deg) translateY(12px);
  }
  .page-products .version-lockup {
    grid-template-columns: 220px 1fr;
    gap: 40px;
  }
  .page-products .version-phones,
  .page-products .web-shell {
    margin: 0;
  }
  .page-products .rule-track {
    max-width: 780px;
  }
  .page-products .channel-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
  .page-products .compare-layout {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
  .page-products .download-track {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
  .page-products .dataflow-facts {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .btn,
  .page-products .rule-step,
  .page-products .download-step {
    transition: none;
    transform: none;
  }
  .page-products .rule-step:hover,
  .page-products .download-step:hover {
    transform: none;
  }
}