.page-products {
  --prod-skew: -6deg;
  background: var(--c-bg);
  color: var(--c-body);
  font-family: var(--font-body);
  line-height: 1.75;
  overflow-x: clip;
}

/* ========== 首屏 ========== */
.page-products .prod-hero {
  position: relative;
  padding: 28px 0 48px;
  background:
    radial-gradient(120% 80% at 85% 0%, rgba(255, 107, 53, .16) 0%, transparent 60%),
    radial-gradient(100% 60% at 10% 100%, rgba(255, 215, 0, .07) 0%, transparent 50%);
}
.page-products .prod-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  z-index: 3;
  background: linear-gradient(90deg, transparent, var(--c-accent) 18%, var(--c-gold) 72%, transparent);
}
.page-products .prod-hero::after {
  content: "";
  position: absolute;
  right: -60px;
  top: 100px;
  width: 220px;
  height: 480px;
  z-index: 0;
  background: linear-gradient(180deg, transparent, rgba(35, 53, 84, .45), transparent);
  transform: skewX(12deg);
}
.page-products .prod-breadcrumb {
  margin: 8px 0 0;
}

.page-products .prod-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 34px;
}
.page-products .prod-hero-copy {
  display: grid;
  gap: 18px;
  align-content: start;
}
.page-products .prod-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--c-gold);
}
.page-products .prod-eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--c-accent);
}
.page-products .prod-hero-title {
  position: relative;
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(34px, 7vw, 64px);
  line-height: 1.08;
  color: var(--c-body);
  letter-spacing: 1px;
  text-transform: uppercase;
}
.page-products .prod-hero-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 92px;
  height: 5px;
  background: var(--grad-accent);
  transform: skewX(-20deg);
}
.page-products .prod-hero-lead {
  max-width: 52ch;
  margin: 6px 0 0;
  font-size: 15px;
  color: var(--c-muted);
}
.page-products .prod-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 6px;
}
.page-products .prod-hero-spec {
  margin: 2px 0 0;
  font-size: 12px;
  color: var(--c-muted);
  letter-spacing: 1px;
}

.page-products .prod-phone {
  position: relative;
  width: min(240px, 68vw);
  margin: 0 auto;
  padding: 14px;
  background: linear-gradient(145deg, #1e2d4d, #0c1830);
  border: 1px solid rgba(255, 215, 0, .22);
  border-radius: 38px;
  box-shadow: 0 28px 56px rgba(0, 0, 0, .42);
}
.page-products .prod-phone::before {
  content: "";
  position: absolute;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  width: 76px;
  height: 16px;
  background: rgba(5, 12, 24, .92);
  border-radius: 0 0 10px 10px;
  z-index: 2;
}
.page-products .prod-phone-screen {
  overflow: hidden;
  aspect-ratio: 500 / 700;
  background: var(--c-bg-light);
  border-radius: 28px;
}
.page-products .prod-phone-screen img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-products .prod-hero-stats {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
  margin-top: 48px;
  padding-top: 30px;
  border-top: 1px solid var(--c-bg-mid);
}
.page-products .prod-stat {
  display: grid;
  gap: 2px;
}
.page-products .prod-stat strong {
  font-family: var(--font-head);
  font-size: 30px;
  line-height: 1.1;
  color: var(--c-gold);
}
.page-products .prod-stat span {
  font-size: 12px;
  letter-spacing: 1px;
  color: var(--c-muted);
}

/* ========== 下载入口 ========== */
.page-products .prod-download {
  position: relative;
  padding: 64px 0;
  border-top: 1px solid rgba(35, 53, 84, .5);
  background: linear-gradient(175deg, transparent 0%, transparent 68%, rgba(17, 34, 64, .72) 68%, var(--c-bg-light) 100%);
}
.page-products .prod-section-head {
  display: grid;
  gap: 8px;
  margin-bottom: 30px;
}
.page-products .prod-section-title {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(26px, 5vw, 44px);
  line-height: 1.15;
  color: var(--c-body);
  text-transform: uppercase;
  letter-spacing: 1px;
}
.page-products .prod-section-sub {
  margin: 0;
  max-width: 56ch;
  font-size: 14px;
  color: var(--c-muted);
}

.page-products .prod-dl-grid {
  display: grid;
  gap: 28px;
}
.page-products .prod-dl-copy {
  display: grid;
  gap: 16px;
  align-content: start;
}
.page-products .prod-dl-copy p {
  margin: 0;
  font-size: 15px;
  color: var(--c-body);
}
.page-products .prod-dl-points {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-products .prod-dl-points li {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  color: var(--c-body);
}
.page-products .prod-dl-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 12px;
  height: 2px;
  background: var(--c-accent);
  transform: skewX(-20deg);
}

.page-products .prod-dl-panel {
  display: grid;
  gap: 12px;
  align-content: start;
}
.page-products .prod-qr-summary {
  list-style: none;
  cursor: pointer;
}
.page-products .prod-qr-summary::-webkit-details-marker {
  display: none;
}
.page-products .prod-qr-summary::marker {
  content: "";
}
.page-products .prod-qr-summary .btn {
  width: 100%;
  justify-content: center;
}
.page-products .prod-qr-box {
  display: grid;
  gap: 12px;
  justify-items: center;
  margin-top: 12px;
  padding: 20px;
  text-align: center;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
}
.page-products .prod-qr-box p {
  margin: 0;
  font-size: 13px;
  color: var(--c-muted);
}
.page-products .prod-qr-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 3px;
  width: 140px;
  height: 140px;
  padding: 10px;
  background: var(--c-white);
  border-radius: 8px;
}
.page-products .prod-qr-grid i {
  background: var(--c-bg);
  border-radius: 2px;
}

.page-products .prod-dl-meta {
  margin: 0;
  font-size: 12px;
  text-align: center;
  letter-spacing: 1px;
  color: var(--c-muted);
}

.page-products .prod-flow {
  margin: 40px 0 0;
  text-align: center;
}
.page-products .prod-flow img {
  display: block;
  width: 100%;
  max-width: 600px;
  height: auto;
  margin: 0 auto;
  border-radius: var(--radius);
}
.page-products .prod-flow figcaption {
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: 1px;
  color: var(--c-muted);
}

.page-products .prod-inline-link {
  color: var(--c-gold);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}
.page-products .prod-inline-link:hover {
  color: var(--c-accent);
}

/* ========== 版本特性 ========== */
.page-products .prod-features {
  position: relative;
  padding: 72px 0;
  background: linear-gradient(160deg, rgba(17, 34, 64, .85) 0%, transparent 45%), var(--c-bg);
}
.page-products .prod-features::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 42%;
  height: 100%;
  background: linear-gradient(90deg, rgba(255, 107, 53, .05), transparent);
  transform: skewX(-12deg);
  transform-origin: top left;
  z-index: 0;
}
.page-products .prod-features .container {
  position: relative;
  z-index: 1;
}

.page-products .prod-tabs {
  display: grid;
  gap: 20px;
}
.page-products .prod-tab-input {
  position: absolute;
  opacity: 0;
}
.page-products .prod-tab-bar {
  display: flex;
  gap: 6px;
  padding: 6px;
  overflow-x: auto;
  scrollbar-width: none;
  background: var(--c-bg-light);
  border: 1px solid var(--c-bg-mid);
  border-radius: calc(var(--radius) + 4px);
}
.page-products .prod-tab-bar::-webkit-scrollbar {
  display: none;
}
.page-products .prod-tab-btn {
  flex: 1 0 auto;
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  text-align: center;
  color: var(--c-muted);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.page-products #prod-tab-live:checked ~ .prod-tab-bar label[for="prod-tab-live"],
.page-products #prod-tab-offline:checked ~ .prod-tab-bar label[for="prod-tab-offline"],
.page-products #prod-tab-export:checked ~ .prod-tab-bar label[for="prod-tab-export"] {
  background: var(--c-accent);
  color: var(--c-white);
}
.page-products .prod-tab-panels {
  padding: 26px;
  background: var(--c-bg-light);
  border: 1px solid var(--c-bg-mid);
  border-left: 4px solid var(--c-gold);
  border-radius: var(--radius);
}
.page-products .prod-tab-panel {
  display: none;
  gap: 10px;
}
.page-products .prod-tab-panel h3 {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: 22px;
  line-height: 1.2;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--c-gold);
}
.page-products .prod-tab-panel p {
  margin: 0;
  font-size: 14px;
  color: var(--c-muted);
}
.page-products .prod-tab-panel ul {
  display: grid;
  gap: 8px;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}
.page-products .prod-tab-panel li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  color: var(--c-body);
}
.page-products .prod-tab-panel li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 10px;
  height: 10px;
  background: var(--c-gold);
  transform: rotate(45deg);
}
.page-products #prod-tab-live:checked ~ .prod-tab-panels .prod-tab-panel-live,
.page-products #prod-tab-offline:checked ~ .prod-tab-panels .prod-tab-panel-offline,
.page-products #prod-tab-export:checked ~ .prod-tab-panels .prod-tab-panel-export {
  display: grid;
}
.page-products .prod-feature-art {
  margin: 0;
}
.page-products .prod-feature-art img {
  display: block;
  width: 100%;
  max-width: 300px;
  height: auto;
  margin: 0 auto;
  border-radius: var(--radius);
}
.page-products .prod-feature-art img::after {
  content: "";
  display: block;
  padding-bottom: 56%;
  background: var(--c-bg-mid);
}

/* ========== 更新日志 ========== */
.page-products .prod-changelog {
  position: relative;
  padding: 72px 0;
  overflow: hidden;
  background: var(--c-bg-light);
}
.page-products .prod-changelog .container {
  position: relative;
  z-index: 1;
}
.page-products .prod-log-bg {
  position: absolute;
  top: 0;
  right: 0;
  width: 55%;
  max-width: 520px;
  height: auto;
  opacity: .22;
  pointer-events: none;
  transform: skewX(-8deg) translateX(40px);
}
.page-products .prod-log-list {
  display: grid;
  gap: 12px;
  margin-top: 28px;
}
.page-products .prod-log-item {
  padding: 4px 18px;
  background: rgba(10, 25, 47, .62);
  border: 1px solid var(--c-bg-mid);
  border-radius: var(--radius);
  transition: border-color var(--dur) var(--ease);
}
.page-products .prod-log-item[open] {
  border-color: rgba(255, 215, 0, .35);
}
.page-products .prod-log-item summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 0;
  list-style: none;
  cursor: pointer;
}
.page-products .prod-log-item summary::-webkit-details-marker {
  display: none;
}
.page-products .prod-log-item summary::marker {
  content: "";
}
.page-products .prod-log-version {
  font-family: var(--font-head);
  font-size: 20px;
  letter-spacing: 1px;
  color: var(--c-body);
}
.page-products .prod-log-tag {
  padding: 3px 9px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--c-white);
  background: var(--grad-accent);
  border-radius: 20px;
}
.page-products .prod-log-item summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-head);
  font-size: 20px;
  color: var(--c-accent);
}
.page-products .prod-log-item[open] summary::after {
  content: "−";
  color: var(--c-gold);
}
.page-products .prod-log-item ul {
  display: grid;
  gap: 6px;
  margin: 4px 0 16px;
  padding-left: 18px;
}
.page-products .prod-log-item li {
  font-size: 14px;
  color: var(--c-muted);
}

/* ========== 安全与合规 ========== */
.page-products .prod-security {
  padding: 72px 0;
  background: linear-gradient(185deg, var(--c-bg) 0%, var(--c-bg) 55%, rgba(17, 34, 64, .72) 100%);
}
.page-products .prod-sec-card {
  position: relative;
  display: grid;
  gap: 24px;
  align-items: center;
  padding: 32px 24px;
  overflow: hidden;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
}
.page-products .prod-sec-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 6px;
  height: 100%;
  background: var(--grad-accent);
}
.page-products .prod-sec-copy {
  display: grid;
  gap: 16px;
}
.page-products .prod-sec-copy .prod-section-head {
  margin-bottom: 0;
}
.page-products .prod-sec-points {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-products .prod-sec-points li {
  position: relative;
  padding-left: 28px;
  font-size: 14px;
  color: var(--c-body);
}
.page-products .prod-sec-points li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  display: grid;
  place-items: center;
  width: 20px;
  height: 20px;
  font-size: 11px;
  color: var(--c-success);
  background: rgba(168, 230, 207, .12);
  border: 1px solid var(--c-success);
  border-radius: 50%;
}
.page-products .prod-sec-trust {
  margin: 0;
  padding-left: 14px;
  font-size: 13px;
  color: var(--c-muted);
  border-left: 2px solid var(--c-gold);
}
.page-products .prod-sec-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}
.page-products .prod-sec-badge {
  display: block;
  width: 120px;
  max-width: 100%;
  height: auto;
  justify-self: center;
  border-radius: 50%;
  filter: drop-shadow(0 0 24px rgba(255, 215, 0, .25));
}

/* ========== 桌面端 ≥900px ========== */
@media (min-width: 900px) {
  .page-products .prod-hero {
    padding: 36px 0 64px;
  }
  .page-products .prod-hero-inner {
    grid-template-columns: 1.08fr .92fr;
    gap: 56px;
    align-items: center;
  }
  .page-products .prod-hero-stats {
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
  }
  .page-products .prod-phone {
    width: 280px;
    margin: 0 0 0 auto;
    transform: rotate(3deg);
  }
  .page-products .prod-dl-grid {
    grid-template-columns: 1.15fr .85fr;
    gap: 44px;
  }
  .page-products .prod-tabs {
    grid-template-columns: 1fr 300px;
    column-gap: 36px;
  }
  .page-products .prod-tab-bar {
    grid-column: 1 / -1;
  }
  .page-products .prod-tab-panels {
    grid-column: 1;
    grid-row: 2;
  }
  .page-products .prod-feature-art {
    grid-column: 2;
    grid-row: 2;
    align-self: start;
  }
  .page-products .prod-sec-card {
    grid-template-columns: 1fr 200px;
    padding: 40px 48px;
  }
  .page-products .prod-sec-badge {
    width: 190px;
  }
}