.page-products *,
.page-products *::before,
.page-products *::after {
  box-sizing: border-box;
}

.page-products {
  background: var(--clr-cream);
  color: var(--clr-dark);
  overflow-x: hidden;
}

.page-products section[id] {
  scroll-margin-top: 96px;
}

.page-products .p-section {
  padding: var(--space-5) 0;
}

.page-products .p-section .section-label {
  margin-bottom: var(--space-3);
}

.page-products .p-section h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 4vw, 2.6rem);
  line-height: 1.2;
  margin-bottom: var(--space-4);
}

.page-products .image-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-md);
}

/* ===== Hero 分屏 ===== */
.page-products .p-hero {
  background: var(--grad-primary);
  color: var(--clr-white);
  padding: var(--space-5) 0;
  border-bottom: 4px solid var(--clr-gold);
}

.page-products .p-hero-inner {
  display: grid;
  gap: var(--space-5);
}

.page-products .p-hero-left {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  justify-content: space-between;
}

.page-products .p-hero-title-v {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 7vw, 3.6rem);
  line-height: 1.2;
  color: var(--clr-white);
  margin: var(--space-3) 0;
  text-shadow: 0 2px 12px rgba(43, 30, 22, 0.25);
}

.page-products .p-hero-summary {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.page-products .p-hero-lead {
  max-width: 30rem;
  font-size: 1.0625rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.92);
}

.page-products .p-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.page-products .p-hero-actions .btn-primary {
  background: var(--clr-deep-blue);
  color: var(--clr-white);
  border: 1px solid var(--clr-gold);
}

.page-products .p-hero-actions .btn-outline {
  border-color: var(--clr-white);
  color: var(--clr-white);
}

.page-products .p-hero-aside {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.page-products .p-hero-cards {
  display: grid;
  gap: var(--space-3);
}

/* ===== 翻转功能卡片 ===== */
.page-products .p-feature-card {
  perspective: 1200px;
  min-height: 176px;
  border-radius: var(--radius-md);
}

.page-products .p-feature-card:focus-visible {
  outline: 2px solid var(--clr-gold);
  outline-offset: 3px;
}

.page-products .p-feature-inner {
  position: relative;
  height: 100%;
  min-height: 176px;
  transform-style: preserve-3d;
  transition: transform 0.6s ease;
}

.page-products .p-feature-card:hover .p-feature-inner,
.page-products .p-feature-card:focus-within .p-feature-inner {
  transform: rotateY(180deg);
}

.page-products .p-feature-front,
.page-products .p-feature-back {
  backface-visibility: hidden;
  border-radius: var(--radius-md);
  min-height: 176px;
  padding: var(--space-3);
}

.page-products .p-feature-front {
  background: var(--clr-white);
  border: 2px solid var(--clr-gold);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.page-products .p-feature-front h3 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--clr-primary);
  margin: 0.5rem 0 0;
}

.page-products .p-feature-index {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--clr-gold);
  letter-spacing: 0.08em;
}

.page-products .p-feature-back {
  position: absolute;
  inset: 0;
  transform: rotateY(180deg);
  background: var(--clr-deep-blue);
  color: var(--clr-white);
  border: 2px solid var(--clr-gold);
  display: flex;
  align-items: center;
}

.page-products .p-feature-back p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.6;
}

/* ===== 核心产品 ===== */
.page-products .p-core-grid,
.page-products .p-replay-grid,
.page-products .p-device-grid {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: 1fr;
}

.page-products .p-core-copy p {
  line-height: 1.8;
}

.page-products .p-core-list {
  list-style: none;
  margin: var(--space-4) 0;
  padding: 0;
  border-top: 2px solid var(--clr-gold);
  border-bottom: 2px solid var(--clr-gold);
}

.page-products .p-core-list li {
  padding: var(--space-3) 0;
  border-bottom: 1px dashed rgba(43, 30, 22, 0.2);
}

.page-products .p-core-list li:last-child {
  border-bottom: 0;
}

.page-products .p-core-list strong {
  color: var(--clr-primary);
  font-weight: 600;
  margin-right: 0.25rem;
}

.page-products .p-core-cert {
  font-size: 0.9375rem;
  color: rgba(43, 30, 22, 0.75);
  border-left: 4px solid var(--clr-gold);
  padding-left: var(--space-3);
}

.page-products .p-core-cert a {
  color: var(--clr-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-products .p-core-frame {
  margin: 0;
}

/* ===== 系统要求 ===== */
.page-products .p-sys-req {
  margin-top: var(--space-4);
  border: 1px dashed var(--clr-gold);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  background: rgba(212, 175, 55, 0.08);
}

.page-products .p-sys-req h3 {
  font-size: 1rem;
  color: var(--clr-primary);
  margin: 0 0 var(--space-2);
}

.page-products .p-sys-req ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.page-products .p-sys-req li {
  display: flex;
  gap: 0.5rem;
  font-size: 0.9rem;
}

.page-products .p-sys-req li span {
  font-family: var(--font-mono);
  color: var(--clr-dark);
  background: var(--clr-cream);
  padding: 0.1rem 0.4rem;
  border-radius: 3px;
  flex: 0 0 auto;
}

/* ===== 对局回放检索 ===== */
.page-products .p-replay {
  background: var(--clr-deep-blue);
  color: var(--clr-white);
}

.page-products .p-replay .section-label {
  color: var(--clr-gold);
}

.page-products .p-replay h2 {
  color: var(--clr-white);
}

.page-products .p-replay-frame {
  border-color: var(--clr-gold);
  margin: 0;
}

.page-products .p-replay-content p {
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.88);
}

.page-products .p-replay-timeline {
  list-style: none;
  margin: var(--space-4) 0;
  padding: 0;
  border-left: 2px solid var(--clr-gold);
}

.page-products .p-replay-timeline li {
  position: relative;
  padding: 0 0 var(--space-3) var(--space-4);
  color: rgba(255, 255, 255, 0.9);
}

.page-products .p-replay-timeline li:last-child {
  padding-bottom: 0;
}

.page-products .p-replay-timeline li::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 4px;
  width: 12px;
  height: 12px;
  background: var(--clr-gold);
  border-radius: 50%;
}

.page-products .p-replay-timeline li span {
  font-family: var(--font-mono);
  color: var(--clr-gold);
  margin-right: 0.5rem;
}

.page-products .p-replay-note {
  font-size: 0.875rem;
  border-top: 1px dashed rgba(255, 255, 255, 0.25);
  padding-top: var(--space-3);
}

/* ===== 导航资源下载 ===== */
.page-products .p-download {
  background: var(--grad-primary);
}

.page-products .p-download-panel {
  background: var(--clr-cream);
  border: 3px solid var(--clr-gold);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  box-shadow: var(--shadow-lg);
}

.page-products .p-download-head {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-4);
}

.page-products .p-download-head p {
  line-height: 1.8;
}

.page-products .p-download-body {
  display: grid;
  gap: var(--space-4);
  align-items: center;
}

.page-products .p-download-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  align-items: center;
}

.page-products .p-download-btn {
  min-width: 220px;
}

.page-products .p-download-tip {
  font-size: 0.875rem;
  color: rgba(43, 30, 22, 0.7);
}

.page-products .p-qr-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}

.page-products .p-qr {
  width: 132px;
  height: 132px;
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  grid-auto-rows: 1fr;
  gap: 1px;
  padding: 8px;
  background: var(--clr-dark);
  border: 2px solid var(--clr-gold);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  transition: box-shadow 0.4s ease;
}

.page-products .p-qr i {
  background: var(--clr-white);
}

.page-products .p-qr i:nth-child(4n+1) {
  background: transparent;
}

.page-products .p-qr i:nth-child(5n+3) {
  background: transparent;
}

.page-products .p-qr i:nth-child(8n+6) {
  background: transparent;
}

.page-products .p-qr i:nth-child(2n+9) {
  background: transparent;
}

.page-products .p-qr-area:hover .p-qr {
  box-shadow: 0 0 24px rgba(212, 175, 55, 0.55);
}

.page-products .p-qr-img-wrap {
  margin: 0;
}

.page-products .p-qr-img-wrap img {
  display: block;
  width: 200px;
  height: 200px;
  border: 2px solid var(--clr-gold);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
}

.page-products .p-qr-caption {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: rgba(43, 30, 22, 0.7);
  letter-spacing: 0.08em;
  margin: 0;
}

/* ===== 跨设备重新登录 ===== */
.page-products .p-device {
  background: var(--clr-cream);
}

.page-products .p-device-frame {
  margin: 0;
}

.page-products .p-device-content p {
  line-height: 1.8;
}

.page-products .p-device-steps {
  list-style: none;
  margin: var(--space-4) 0;
  padding: 0;
}

.page-products .p-device-steps li {
  display: flex;
  gap: 0.75rem;
  align-items: baseline;
  padding: var(--space-3) 0;
  border-bottom: 1px dashed rgba(43, 30, 22, 0.2);
}

.page-products .p-device-steps li:last-child {
  border-bottom: 0;
}

.page-products .p-device-steps li span {
  font-family: var(--font-mono);
  color: var(--clr-primary);
  font-weight: 600;
  flex: 0 0 auto;
}

.page-products .p-device-content .btn-outline {
  border-color: var(--clr-primary);
  color: var(--clr-primary);
}

/* ===== 更新日志 ===== */
.page-products .p-changelog {
  position: relative;
  background: var(--clr-dark);
  color: var(--clr-white);
  padding-top: 0;
}

.page-products .p-changelog-bg {
  margin: 0;
  height: 300px;
  overflow: hidden;
  position: relative;
}

.page-products .p-changelog-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
  display: block;
}

.page-products .p-changelog-inner {
  position: relative;
  padding-top: var(--space-5);
}

.page-products .p-changelog .section-label {
  color: var(--clr-gold);
}

.page-products .p-changelog h2 {
  color: var(--clr-white);
}

.page-products .p-changelog-intro {
  max-width: 640px;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.8;
}

.page-products .p-changelog-list {
  list-style: none;
  margin: var(--space-4) 0 0;
  padding: 0;
  display: grid;
  gap: var(--space-3);
}

.page-products .p-changelog-list li {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: var(--space-3);
  padding: var(--space-3);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(212, 175, 55, 0.35);
  border-left-width: 4px;
  border-radius: var(--radius-sm);
}

.page-products .p-version {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--clr-gold);
}

.page-products .p-change-desc h3 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--clr-white);
  margin: 0 0 0.25rem;
}

.page-products .p-change-desc p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.75);
}

.page-products .p-changelog-more {
  margin-top: var(--space-4);
  color: rgba(255, 255, 255, 0.75);
}

.page-products .p-changelog-more a {
  color: var(--clr-gold);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ===== 桌面端响应式 ===== */
@media (min-width: 860px) {
  .page-products .p-hero-inner {
    grid-template-columns: 5fr 7fr;
    align-items: stretch;
    min-height: 620px;
  }

  .page-products .p-hero-left {
    padding-right: var(--space-4);
    border-right: 1px solid rgba(255, 255, 255, 0.3);
  }

  .page-products .p-hero-title-v {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .page-products .p-hero-title-v span {
    writing-mode: vertical-rl;
    height: 34rem;
    font-size: clamp(2.2rem, 3.2vw, 3rem);
    letter-spacing: 0.05em;
  }

  .page-products .p-hero-cards {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-products .p-core-grid,
  .page-products .p-replay-grid,
  .page-products .p-device-grid {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }

  .page-products .p-download-body {
    grid-template-columns: 1fr 1fr;
  }

  .page-products .p-changelog-list li {
    grid-template-columns: 120px 1fr;
    padding: var(--space-4);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .p-feature-inner {
    transition: none;
    transform: none;
  }

  .page-products .p-feature-card .p-feature-back {
    display: none;
  }

  .page-products .p-feature-card:hover .p-feature-inner,
  .page-products .p-feature-card:focus-within .p-feature-inner {
    transform: none;
  }

  .page-products .p-qr {
    transition: none;
  }
}