/* ===== 产品下载页专属样式 ===== */
.page-products {
  background: var(--color-cream);
  color: var(--color-deep);
  overflow-x: hidden;
}

/* 面包屑 */
.page-products .breadcrumbs {
  padding: 24px 20px 0;
  font-size: 0.875rem;
  color: var(--color-gray);
  line-height: 1.6;
}
.page-products .breadcrumbs a {
  color: var(--color-orange);
  text-decoration: none;
}
.page-products .breadcrumbs a:hover {
  text-decoration: underline;
}
.page-products .crumb-sep {
  margin: 0 8px;
  color: var(--color-gray);
}

/* ===== 01 首屏：官方免费安装入口 ===== */
.page-products .product-hero {
  position: relative;
  background: var(--color-deep);
  color: var(--color-white);
  padding: 36px 20px 60px;
  overflow: hidden;
}
.page-products .product-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    115deg,
    transparent 0 18px,
    rgba(255, 255, 255, 0.045) 18px 19px,
    transparent 19px 38px
  );
  pointer-events: none;
}
.page-products .product-hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 46%;
  height: 6px;
  background: var(--color-orange);
  transform: skewX(-28deg);
  transform-origin: right top;
  pointer-events: none;
}
.page-products .hero-grid {
  position: relative;
  z-index: 1;
  max-width: var(--container-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 40px;
}

/* 手机模型 */
.page-products .phone-rail {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}
.page-products .phone-frame {
  width: 200px;
  padding: 10px;
  background: var(--color-slate);
  border-radius: 36px;
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.45),
    inset 0 0 0 2px rgba(255, 255, 255, 0.08);
}
.page-products .phone-screen {
  border-radius: 26px;
  overflow: hidden;
  aspect-ratio: 9 / 16;
  background: var(--color-slate);
}
.page-products .phone-screen img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.page-products .phone-caption {
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: rgba(255, 255, 255, 0.7);
  text-transform: uppercase;
  text-align: center;
}

/* Hero 文案 */
.page-products .hero-copy {
  text-align: center;
  max-width: 560px;
}
.page-products .hero-overline {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 18px;
}
.page-products .hero-overline .section-number {
  font-family: var(--font-data);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-orange);
}
.page-products .hero-overline .section-label {
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  color: var(--color-white);
}
.page-products .hero-copy h1 {
  font-family: var(--font-headline);
  font-size: clamp(1.75rem, 7vw, 3.5rem);
  line-height: 1.08;
  letter-spacing: 0.04em;
  margin: 0 0 16px;
  color: var(--color-white);
}
.page-products .hero-lead {
  font-size: 1rem;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.85);
  margin: 0 0 28px;
}

/* 下载按钮区 */
.page-products .download-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}
.page-products .step-drawer {
  width: 100%;
  max-width: 340px;
}
.page-products .step-drawer summary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  list-style: none;
  cursor: pointer;
  width: 100%;
  font-weight: 700;
}
.page-products .step-drawer summary::-webkit-details-marker {
  display: none;
}
.page-products .step-drawer summary.btn-primary {
  background: linear-gradient(135deg, var(--color-orange), #e85e00);
  box-shadow: 0 8px 22px rgba(255, 107, 0, 0.35);
  border: none;
}
.page-products .step-arrow {
  transition: transform var(--duration-fast) ease;
  flex-shrink: 0;
}
.page-products .step-drawer[open] .step-arrow {
  transform: rotate(180deg);
}
.page-products .step-body {
  margin-top: 14px;
  background: var(--color-cream);
  color: var(--color-deep);
  border-radius: 2px;
  padding: 20px 18px;
  text-align: left;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
}
.page-products .step-body h3 {
  font-family: var(--font-headline);
  font-size: 1.125rem;
  letter-spacing: 0.04em;
  margin: 0 0 12px;
  color: var(--color-deep);
}
.page-products .step-list {
  margin: 0 0 14px;
  padding-left: 20px;
  display: grid;
  gap: 8px;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--color-gray);
}
.page-products .step-list strong {
  color: var(--color-deep);
}
.page-products .step-support {
  display: inline-block;
  font-size: 0.9375rem;
  color: var(--color-orange);
  font-weight: 700;
  text-decoration: none;
}
.page-products .step-support:hover {
  text-decoration: underline;
}

/* Hero 标签 */
.page-products .hero-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}
.page-products .hero-tags .tag {
  background: rgba(255, 255, 255, 0.12);
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.25);
}
.page-products .hero-tags .tag-new {
  background: rgba(255, 107, 0, 0.18);
  color: var(--color-orange);
  border-color: var(--color-orange);
}

/* ===== 02 版本信息 ===== */
.page-products .version-band {
  position: relative;
  background: var(--color-cream);
  padding: 64px 0 72px;
}
.page-products .version-band::before {
  content: "02";
  position: absolute;
  top: 10px;
  right: 14px;
  font-family: var(--font-data);
  font-size: clamp(6rem, 18vw, 12rem);
  font-weight: 700;
  line-height: 1;
  color: var(--color-deep);
  opacity: 0.05;
  pointer-events: none;
  z-index: 0;
}
.page-products .version-band .container {
  position: relative;
  z-index: 1;
}
.page-products .band-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 28px;
}
.page-products .band-head .section-number {
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--color-orange);
  line-height: 1;
}
.page-products .band-head-text .section-label {
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  color: var(--color-gray);
  text-transform: uppercase;
  margin-bottom: 4px;
  display: block;
}
.page-products .band-head h2 {
  font-family: var(--font-headline);
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  letter-spacing: 0.04em;
  margin: 0;
  color: var(--color-deep);
}

/* 版本卡片 */
.page-products .version-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 24px;
}
.page-products .version-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: var(--color-white);
  padding: 24px 20px;
  border-left: 4px solid var(--color-orange);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}
.page-products .version-key {
  font-size: 0.8125rem;
  letter-spacing: 0.18em;
  color: var(--color-gray);
  text-transform: uppercase;
}
.page-products .version-card .data-number {
  font-family: var(--font-data);
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--color-deep);
}
.page-products .version-card-wide .data-number {
  font-size: clamp(1.05rem, 3vw, 1.5rem);
  line-height: 1.3;
  word-break: break-word;
}
.page-products .version-desc {
  font-size: 0.875rem;
  color: var(--color-gray);
}
.page-products .version-footnote {
  background: rgba(122, 132, 80, 0.12);
  border-left: 4px solid var(--color-moss);
  padding: 14px 16px;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--color-gray);
  margin: 0 0 28px;
}

/* 数据横条 */
.page-products .data-strip {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  background: var(--color-slate);
  padding: 24px 20px;
  border-radius: 2px;
}
.page-products .data-strip-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  text-align: center;
}
.page-products .data-strip-item .data-number {
  font-family: var(--font-data);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-orange);
  line-height: 1.1;
}
.page-products .data-strip-item span {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 0.06em;
}

/* ===== 功能区块通用 ===== */
.page-products .feature-section {
  background: var(--color-cream);
  padding: 64px 0;
}
.page-products .feature-section.dark {
  background: var(--color-deep);
  color: var(--color-white);
}
.page-products .feature-grid {
  display: flex;
  flex-direction: column;
  gap: 36px;
  align-items: center;
}
.page-products .feature-visual img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 520px;
  border-radius: 2px;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.22);
}
.page-products .feature-copy {
  max-width: 560px;
}
.page-products .feature-meta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  border-bottom: 2px solid var(--color-orange);
  padding-bottom: 6px;
}
.page-products .feature-meta .section-number {
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-orange);
}
.page-products .feature-meta .section-label {
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  color: var(--color-gray);
  text-transform: uppercase;
}
.page-products .feature-section.dark .feature-meta .section-label {
  color: rgba(255, 255, 255, 0.6);
}
.page-products .feature-copy h2 {
  font-family: var(--font-headline);
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  letter-spacing: 0.04em;
  line-height: 1.15;
  margin: 0 0 14px;
  color: var(--color-deep);
}
.page-products .feature-section.dark h2 {
  color: var(--color-white);
}
.page-products .feature-copy p {
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--color-gray);
  margin: 0 0 18px;
}
.page-products .feature-section.dark p {
  color: rgba(255, 255, 255, 0.82);
}

/* 功能列表 */
.page-products .feature-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.page-products .feature-list li {
  position: relative;
  padding-left: 26px;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--color-deep);
}
.page-products .feature-section.dark .feature-list li {
  color: rgba(255, 255, 255, 0.88);
}
.page-products .feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 14px;
  height: 3px;
  background: var(--color-orange);
  transform: skewX(-20deg);
}

/* ===== 06 首次访问联系入口 ===== */
.page-products .contact-band {
  background: linear-gradient(135deg, var(--color-slate) 0%, var(--color-deep) 60%, var(--color-deep) 100%);
  color: var(--color-white);
  padding: 64px 0;
  position: relative;
  overflow: hidden;
}
.page-products .contact-band::after {
  content: "";
  position: absolute;
  left: -60px;
  bottom: -80px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(255, 107, 0, 0.22);
  filter: blur(2px);
  pointer-events: none;
}
.page-products .contact-grid {
  display: flex;
  flex-direction: column;
  gap: 36px;
  align-items: center;
}
.page-products .contact-copy {
  max-width: 560px;
}
.page-products .contact-copy .feature-meta .section-label {
  color: rgba(255, 255, 255, 0.65);
}
.page-products .contact-copy h2 {
  font-family: var(--font-headline);
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  letter-spacing: 0.04em;
  line-height: 1.15;
  margin: 0 0 14px;
}
.page-products .contact-copy p {
  font-size: 0.9375rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.82);
  margin: 0 0 18px;
}
.page-products .contact-ways {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 10px;
}
.page-products .contact-ways li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9375rem;
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.06);
  border-left: 3px solid var(--color-orange);
}
.page-products .contact-ways span {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.8125rem;
  letter-spacing: 0.1em;
  min-width: 42px;
}
.page-products .contact-ways strong {
  color: var(--color-white);
  font-weight: 600;
  word-break: break-all;
}
.page-products .contact-visual img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 520px;
  border-radius: 2px;
  box-shadow: 0 20px 44px rgba(0, 0, 0, 0.4);
}

/* ===== 相关链接 ===== */
.page-products .related-panel {
  background: var(--color-cream);
  padding: 60px 0 80px;
}
.page-products .related-head {
  margin-bottom: 24px;
}
.page-products .related-head .section-label {
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  color: var(--color-gray);
  text-transform: uppercase;
  display: block;
  margin-bottom: 6px;
}
.page-products .related-head h2 {
  font-family: var(--font-headline);
  font-size: clamp(1.375rem, 3.5vw, 1.875rem);
  letter-spacing: 0.04em;
  margin: 0;
  color: var(--color-deep);
}
.page-products .related-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
.page-products .related-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px;
  background: var(--color-white);
  text-decoration: none;
  color: var(--color-deep);
  box-shadow: var(--shadow-card);
  border-bottom: 3px solid var(--color-deep);
  transition: border-color var(--duration-fast) ease,
    transform var(--duration-fast) ease,
    box-shadow var(--duration-fast) ease;
}
.page-products .related-card:hover {
  border-bottom-color: var(--color-orange);
  transform: translateY(-4px);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.2);
}
.page-products .related-code {
  font-family: var(--font-data);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-orange);
  letter-spacing: 0.08em;
}
.page-products .related-card strong {
  font-size: 1.125rem;
  font-weight: 700;
}
.page-products .related-card > span:last-child {
  font-size: 0.875rem;
  color: var(--color-gray);
  line-height: 1.6;
}

/* ===== 桌面端布局 ===== */
@media (min-width: 960px) {
  .page-products .breadcrumbs {
    padding: 32px 24px 0;
    max-width: var(--container-width);
    margin: 0 auto;
  }

  /* Hero 双栏 */
  .page-products .product-hero {
    min-height: 92vh;
    display: flex;
    align-items: center;
    padding: 48px 24px 80px;
  }
  .page-products .hero-grid {
    display: grid;
    grid-template-columns: 340px 1fr;
    align-items: center;
    gap: 88px;
  }
  .page-products .hero-copy {
    text-align: left;
    max-width: 620px;
    justify-self: start;
  }
  .page-products .download-actions {
    flex-direction: row;
    align-items: center;
    justify-content: flex-start;
    flex-wrap: wrap;
  }
  .page-products .step-drawer {
    max-width: none;
    width: auto;
  }
  .page-products .step-drawer summary {
    width: auto;
  }
  .page-products .hero-tags {
    justify-content: flex-start;
  }
  .page-products .phone-rail {
    position: sticky;
    top: 32px;
  }
  .page-products .phone-frame {
    width: 280px;
    padding: 14px;
  }
  .page-products .phone-screen {
    border-radius: 30px;
  }

  /* 版本卡片三列 */
  .page-products .version-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
  .page-products .data-strip {
    grid-template-columns: repeat(4, 1fr);
    padding: 28px 32px;
  }

  /* 功能双栏 */
  .page-products .feature-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
  }
  .page-products .feature-grid.reversed .feature-visual {
    order: 2;
  }
  .page-products .feature-grid.reversed .feature-copy {
    order: 1;
  }
  .page-products .feature-visual img {
    max-width: 560px;
  }

  /* 联系双栏 */
  .page-products .contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
  }
  .page-products .contact-visual img {
    max-width: 560px;
  }

  /* 相关卡片三列 */
  .page-products .related-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
}

/* 窄屏细节 */
@media (max-width: 400px) {
  .page-products .phone-frame {
    width: 170px;
  }
  .page-products .data-strip {
    padding: 18px 12px;
  }
  .page-products .data-strip-item .data-number {
    font-size: 1.3rem;
  }
}