/**
 * 软件详情 — 专题落地页布局（全宽大标题、分节叙事，非表格卡片堆叠）
 * 依赖 design-tokens.css
 */
body.bm-page-software {
  /* 与 body 顶栏留白一致，用于首屏 min-height 扣减，避免「导航 + 首屏」超过一屏 */
  --bm-software-nav-clearance: max(clamp(4.25rem, 12vw, 5rem), env(safe-area-inset-top));
  /* 专题强调色：品牌高光（跟随 design-tokens） */
  --sd-accent: var(--bm-brand);
  --sd-accent-dim: rgba(var(--bm-brand-rgb), 0.28);
  --sd-accent-glow: var(--bm-hero-accent-glow);
  --sd-focus-ring: 0 0 0 3px rgba(var(--bm-brand-rgb), 0.18);
  /* 专题入场动画时长（偏慢、偏从容） */
  --sd-enter-hero-opacity: 1.1s;
  --sd-enter-hero-transform: 1.28s;
  --sd-enter-scroll-opacity: 1.15s;
  --sd-enter-scroll-transform: 1.32s;
  --sd-enter-video: 1.32s;
  --sd-enter-hero-delay: 0.16s;

  font-family: var(--bm-font-sans);
  font-size: var(--bm-text-base);
  line-height: var(--bm-leading-normal);
  background-color: transparent;
  color: var(--bm-text);
  padding-top: max(clamp(4.25rem, 12vw, 5rem), env(safe-area-inset-top));
  padding-bottom: max(var(--bm-space-6), env(safe-area-inset-bottom));
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body.bm-page-software ::selection {
  background: rgba(var(--bm-brand-rgb), 0.22);
  color: inherit;
}

.bm-page-software .bm-software-main.bm-sd-topic {
  min-height: 50vh;
  overflow-x: hidden;
}

/* —— 专题首屏（内容区收窄、在视口中水平垂直居中）—— */
.bm-page-software .bm-sd-topic-hero {
  position: relative;
  isolation: isolate;
  width: 100%;
  box-sizing: border-box;
  min-height: min(calc(100vh - var(--bm-software-nav-clearance)), 60rem);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--bm-text);
  padding-top: max(clamp(2.25rem, 5vw, 3.5rem), env(safe-area-inset-top));
  padding-bottom: max(clamp(2.5rem, 6vw, 4.5rem), env(safe-area-inset-bottom));
  padding-left: max(clamp(var(--bm-space-3), 3vw, 2.5rem), env(safe-area-inset-left));
  padding-right: max(clamp(var(--bm-space-3), 3vw, 2.5rem), env(safe-area-inset-right));
  background:
    radial-gradient(ellipse 90% 70% at 50% -10%, var(--bm-hero-sky) 0%, transparent 62%),
    radial-gradient(ellipse 60% 40% at 50% 100%, var(--bm-hero-green) 0%, transparent 55%),
    var(--bm-hero-gradient);
}

@supports (height: 100dvh) {
  .bm-page-software .bm-sd-topic-hero {
    min-height: min(calc(100dvh - var(--bm-software-nav-clearance)), 60rem);
  }
}

.bm-page-software .bm-sd-topic-hero__glow {
  display: none;
}

.bm-page-software .bm-sd-topic-hero::before,
.bm-page-software .bm-sd-topic-hero::after {
  display: none;
}

.bm-page-software .bm-sd-topic-hero__inner {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: min(1080px, calc(100vw - (max(env(safe-area-inset-left), env(safe-area-inset-right), 1.25rem) * 2)));
  margin-inline: auto;
  align-self: center;
}

@media (min-width: 1200px) {
  .bm-page-software .bm-sd-topic-hero__inner {
    max-width: min(1140px, calc(100vw - (max(env(safe-area-inset-left), env(safe-area-inset-right), 1.35rem) * 2)));
  }
}

@media (min-width: 1440px) {
  .bm-page-software .bm-sd-topic-hero__inner {
    max-width: min(1200px, calc(100vw - (max(env(safe-area-inset-left), env(safe-area-inset-right), 1.5rem) * 2)));
  }
}

.bm-page-software .bm-sd-topic-hero__grid {
  display: grid;
  gap: clamp(1.25rem, 2.8vw, 2.25rem);
  align-items: center;
}

@media (min-width: 992px) {
  .bm-page-software .bm-sd-topic-hero__grid {
    grid-template-columns: minmax(0, 1fr) minmax(240px, 1fr);
    align-items: center;
  }
}

@media (min-width: 1200px) {
  .bm-page-software .bm-sd-topic-hero__grid {
    grid-template-columns: minmax(0, 1fr) minmax(260px, 1fr);
  }
}

/* 右侧：只占一列宽、无伪元素背板，避免「灰一块 + 白框」的脏感 */
.bm-page-software .bm-sd-topic-hero__visual {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  min-width: 0;
}

/* 与入场 transform 分离，单独承载 perspective，避免 3D 被父级压平 */
.bm-page-software .bm-sd-icon-stage {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  perspective: min(2200px, 150vw);
  perspective-origin: 52% 38%;
  padding-block: clamp(0.5rem, 2vw, 1.75rem);
  padding-inline: clamp(0.25rem, 2vw, 2rem);
}

.bm-page-software .bm-sd-icon-wrap {
  width: 100%;
  max-width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  transform-style: preserve-3d;
}

/* 主图：按原图尺寸展示，避免放大导致模糊 */
.bm-page-software .bm-sd-topic-hero .software-icon--hero,
.bm-page-software .bm-sd-topic-hero .software-icon {
  display: block;
  width: auto;
  height: auto;
  max-width: min(var(--bm-img-max, 560px), 100%);
  max-height: min(56vh, var(--bm-img-max, 560px));
  margin-inline: auto;
  object-fit: contain;
  object-position: center;
  border: 0;
  outline: 0;
  background: transparent;
  box-shadow: none;
  transform: none;
  transform-origin: 50% 50%;
  filter: none;
  transition: none;
  backface-visibility: visible;
  image-rendering: auto;
}

.bm-page-software .bm-sd-icon-wrap {
  filter: drop-shadow(0 14px 36px rgba(15, 33, 25, 0.12));
}

@media (hover: hover) {
  .bm-page-software .bm-sd-topic-hero__visual:hover .software-icon {
    transform: none;
  }
}

.bm-page-software .bm-sd-topic-hero .software-icon:not(img) {
  width: min(18rem, 72vw);
  max-width: 100%;
  aspect-ratio: 1;
  max-height: none;
}

.bm-page-software .software-icon .fa-box {
  font-size: clamp(3.5rem, 14vw, 6rem);
  color: var(--bm-brand-light);
}

.bm-page-software .bm-sd-topic-hero__copy {
  container-type: inline-size;
  container-name: sd-hero-copy;
  min-width: 0;
}

.bm-page-software .bm-sd-topic-hero .software-title {
  font-size: clamp(1.65rem, 0.85rem + 2.1vw, 2.65rem);
  font-weight: 800;
  letter-spacing: -0.045em;
  line-height: 1.05;
  color: var(--bm-text);
  margin-bottom: var(--bm-space-5);
  max-width: min(42rem, 100%);
  overflow-wrap: break-word;
  text-wrap: balance;
  text-shadow: none;
}

@container sd-hero-copy (min-width: 520px) {
  .bm-page-software .bm-sd-topic-hero .software-title {
    max-width: min(50rem, 100%);
  }

  .bm-page-software .bm-sd-topic-hero .software-subtitle {
    max-width: 44rem;
  }
}

@container sd-hero-copy (max-width: 520px) {
  .bm-page-software .bm-sd-topic-hero .software-title {
    font-size: clamp(1.68rem, 0.82rem + 4.2cqi, 2.65rem);
  }
}

@container sd-hero-copy (max-width: 380px) {
  .bm-page-software .bm-sd-topic-hero .software-title {
    font-size: clamp(1.52rem, 0.78rem + 4.8cqi, 2.2rem);
  }
}

.bm-page-software .bm-sd-topic-hero .software-subtitle {
  font-size: clamp(0.98rem, 0.92rem + 0.35vw, 1.12rem);
  line-height: 1.55;
  color: var(--bm-text-secondary);
  margin-bottom: var(--bm-space-8);
  max-width: 36rem;
  font-weight: 400;
}

.bm-page-software .bm-sd-hero-meta-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.5rem;
  margin: 0 0 var(--bm-space-6);
  max-width: min(42rem, 100%);
  font-size: var(--bm-text-sm);
  line-height: 1.5;
  color: var(--bm-text-secondary);
}

.bm-page-software .bm-sd-hero-meta-line .bm-sd-meta-chunk {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 500;
}

.bm-page-software .bm-sd-hero-meta-line .bm-sd-meta-chunk i {
  font-size: 0.85em;
  color: var(--bm-brand-active);
  opacity: 1;
}

.bm-page-software .bm-sd-hero-meta-line .bm-sd-meta-chunk--muted {
  color: var(--bm-text-muted);
}

.bm-page-software .bm-sd-hero-meta-line .bm-sd-meta-sep {
  color: var(--bm-border-light-strong);
  font-weight: 300;
  user-select: none;
  padding: 0 0.1rem;
}

.bm-page-software .bm-sd-topic-hero .software-actions {
  margin-top: var(--bm-space-8);
  gap: var(--bm-space-3) var(--bm-space-4) !important;
}

.bm-page-software .bm-sd-topic-hero .download-btn-compact:not(.bm-btn-share) {
  background: var(--bm-gradient-brand, var(--bm-brand));
  color: #fff;
  border: none;
  padding: var(--bm-space-4) var(--bm-space-8);
  border-radius: 999px;
  font-weight: 700;
  font-size: var(--bm-text-md);
  letter-spacing: 0.03em;
  text-decoration: none;
  box-shadow: 0 4px 18px rgba(13, 159, 110, 0.32);
  transition: filter 0.2s ease, box-shadow 0.2s ease;
}

.bm-page-software .bm-sd-topic-hero .download-btn-compact:not(.bm-btn-share) i {
  color: currentColor;
}

.bm-page-software .bm-sd-topic-hero .download-btn-compact:not(.bm-btn-share):visited {
  color: #fff;
}

.bm-page-software .bm-sd-topic-hero .download-btn-compact:not(.bm-btn-share):hover {
  color: #fff;
  filter: brightness(1.06);
  box-shadow: 0 6px 22px rgba(13, 159, 110, 0.38);
}

.bm-page-software .bm-sd-topic-hero .download-btn-compact:not(.bm-btn-share):active {
  color: #fff;
  filter: brightness(0.96);
}

.bm-page-software .bm-sd-topic-hero .download-btn-compact:not(.bm-btn-share):focus-visible {
  color: #fff;
  outline: none;
  box-shadow: var(--bm-shadow-brand), var(--bm-focus-ring);
}

.bm-page-software .bm-sd-topic-hero .download-btn-compact:not(.bm-btn-share):hover:focus-visible {
  color: #fff;
  box-shadow: var(--bm-shadow-brand), var(--bm-focus-ring);
}

.bm-page-software .bm-sd-topic-hero .download-btn-compact.bm-btn-share,
.bm-page-software .bm-sd-topic-hero .invoice-btn-compact {
  background: rgba(255, 255, 255, 0.75);
  color: var(--bm-brand);
  border: 1px solid var(--bm-brand-muted);
  border-radius: 999px;
  padding: var(--bm-space-4) var(--bm-space-6);
  font-weight: 600;
  font-size: var(--bm-text-sm);
  box-shadow: var(--bm-shadow-sm);
}

.bm-page-software .bm-sd-topic-hero .download-btn-compact.bm-btn-share:hover,
.bm-page-software .bm-sd-topic-hero .invoice-btn-compact:hover {
  background: var(--bm-brand);
  border-color: var(--bm-brand);
  color: #fff;
}

.bm-page-software .bm-sd-topic-hero .download-btn-compact.bm-btn-share:focus-visible,
.bm-page-software .bm-sd-topic-hero .invoice-btn-compact:focus-visible {
  outline: none;
  box-shadow: var(--sd-focus-ring);
}

.bm-page-software .bm-sd-topic-hero .download-btn-compact.bm-btn-share:hover:focus-visible,
.bm-page-software .bm-sd-topic-hero .invoice-btn-compact:hover:focus-visible {
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.35),
    var(--sd-focus-ring);
}

/* 提示在品牌主按钮内 */
.bm-page-software .bm-sd-topic-hero .download-btn-compact:not(.bm-btn-share) #browserHint {
  color: rgba(255, 255, 255, 0.72) !important;
}

/* 浅色分节带内按钮（勿写全局 .download-btn-compact，否则会与首屏白底按钮特异性打平、后写规则把字变成浅色） */
.bm-page-software .bm-sd-topic-band .download-btn-compact {
  background: var(--bm-brand);
  color: var(--bm-fg-on-dark);
  border: 1px solid var(--bm-brand);
  padding: var(--bm-space-3) var(--bm-space-6);
  border-radius: 999px;
  font-weight: 600;
  font-size: var(--bm-text-sm);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: var(--bm-space-2);
  transition:
    background 0.22s ease,
    border-color 0.22s ease,
    color 0.22s ease,
    transform 0.22s ease,
    box-shadow 0.22s ease;
}

.bm-page-software .bm-sd-topic-band .download-btn-compact:hover {
  background: var(--secondary-color);
  border-color: var(--secondary-color);
  color: var(--bm-fg-on-dark);
  transform: translateY(-1px);
}

.bm-page-software .bm-sd-topic-band .download-btn-compact:focus-visible {
  outline: none;
  box-shadow: var(--sd-focus-ring);
}

.bm-page-software .bm-sd-topic-band .download-btn-compact:hover:focus-visible {
  box-shadow: var(--sd-focus-ring);
}

.bm-page-software .bm-sd-topic-band .download-btn-compact.bm-btn-share {
  background: transparent;
  color: var(--bm-text);
  border: 1px solid var(--bm-border-light-strong);
}

.bm-page-software .bm-sd-topic-band .invoice-btn-compact {
  background: transparent;
  color: var(--bm-brand);
  border: 1px solid var(--bm-brand);
  padding: var(--bm-space-3) var(--bm-space-6);
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: var(--bm-space-2);
  transition:
    background 0.22s ease,
    border-color 0.22s ease,
    color 0.22s ease,
    transform 0.22s ease,
    box-shadow 0.22s ease;
}

.bm-page-software .bm-sd-topic-band .invoice-btn-compact:hover {
  background: var(--bm-brand);
  color: var(--bm-fg-on-dark);
}

.bm-page-software .bm-sd-topic-band .invoice-btn-compact:focus-visible {
  outline: none;
  box-shadow: var(--sd-focus-ring);
}

.bm-page-software #browserHint {
  font-size: var(--bm-text-xs) !important;
}

/* —— 分节叙事带 —— */
.bm-page-software .bm-sd-topic-shell {
  width: 100%;
  /* 专题正文区：比典型博客栏略宽，大屏不显得「一条细缝」 */
  max-width: min(52rem, 94vw);
  margin-inline: auto;
  padding-inline: max(clamp(var(--bm-space-4), 4vw, var(--bm-space-8)), env(safe-area-inset-left))
    max(clamp(var(--bm-space-4), 4vw, var(--bm-space-8)), env(safe-area-inset-right));
}

.bm-page-software .bm-sd-topic-shell--wide {
  max-width: min(1080px, 94vw);
}

.bm-page-software .bm-sd-topic-band {
  padding-block: clamp(3.75rem, 9vw, 7.5rem);
  scroll-margin-top: 5rem;
}

.bm-page-software .bm-sd-topic-band--light {
  background: var(--bm-surface-section);
  color: var(--bm-text);
}

.bm-page-software .bm-sd-topic-band--muted {
  background: var(--bm-surface-muted);
  color: var(--bm-text);
}

.bm-page-software .bm-sd-topic-band--dark {
  background: var(--bm-surface-section);
  color: var(--bm-text);
}

.bm-page-software .bm-sd-topic-band--dark .bm-sd-topic-kicker {
  color: var(--bm-section-kicker);
}

.bm-page-software .bm-sd-topic-band--dark .bm-sd-topic-h2 {
  color: var(--bm-text);
}

.bm-page-software .bm-sd-topic-band--dark .bm-sd-topic-lead {
  color: var(--bm-text-secondary);
}

.bm-page-software .bm-sd-topic-section-head {
  margin-bottom: clamp(2rem, 5vw, 3rem);
}

.bm-page-software .bm-sd-topic-kicker {
  display: block;
  font-family: var(--bm-font-mono);
  font-size: var(--bm-text-xs);
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--bm-text-muted);
  margin-bottom: var(--bm-space-3);
}

.bm-page-software .bm-sd-topic-h2 {
  font-size: clamp(1.65rem, 1.1rem + 2.2vw, 2.65rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.12;
  margin-bottom: var(--bm-space-4);
  color: var(--bm-text);
}

.bm-page-software .bm-sd-topic-lead {
  font-size: var(--bm-text-md);
  line-height: 1.55;
  color: var(--bm-text-secondary);
  max-width: none;
  margin-bottom: 0;
}

.bm-page-software .bm-sd-topic-meta-line {
  margin-top: var(--bm-space-10);
  padding-top: var(--bm-space-6);
  border-top: 1px solid var(--bm-border-light);
  font-family: var(--bm-font-mono);
  font-size: var(--bm-text-xs);
  letter-spacing: 0.06em;
  color: var(--bm-text-muted);
}

.bm-page-software .bm-sd-topic-band--dark .bm-sd-topic-meta-line {
  border-top-color: var(--bm-border-light);
}

.bm-page-software .bm-sd-topic-prose {
  font-size: clamp(1rem, 0.92rem + 0.35vw, 1.125rem);
  line-height: 1.72;
  color: var(--bm-text);
  max-width: none;
  overflow-wrap: break-word;
}

@supports (text-wrap: pretty) {
  .bm-page-software .bm-sd-topic-prose {
    text-wrap: pretty;
  }
}

.bm-page-software .bm-sd-topic-prose + .bm-sd-topic-meta-line {
  margin-top: var(--bm-space-8);
}

/* 视频 */
.bm-page-software .video-container {
  margin-top: var(--bm-space-2);
}

.bm-page-software .video-wrapper {
  position: relative;
  width: 100%;
  height: 0;
  padding-bottom: 56.25%;
  border-radius: 1rem;
  overflow: hidden;
  background: #000;
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.55);
}

.bm-page-software .video-wrapper iframe,
.bm-page-software .video-wrapper video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
  border-radius: 1rem;
}

.bm-page-software .play-button-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.42);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.25s ease, box-shadow 0.2s ease;
  z-index: 5;
  border-radius: 1rem;
}

.bm-page-software .play-button-overlay:hover {
  background: rgba(0, 0, 0, 0.58);
}

.bm-page-software .play-button-overlay:focus {
  outline: none;
}

.bm-page-software .play-button-overlay:focus-visible {
  background: rgba(0, 0, 0, 0.52);
  box-shadow: inset var(--sd-focus-ring);
}

.bm-page-software .play-button {
  width: clamp(4rem, 12vw, 5.5rem);
  height: clamp(4rem, 12vw, 5.5rem);
  background: rgba(255, 255, 255, 0.96);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--bm-text-xl);
  color: var(--bm-brand);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.35), 0 16px 48px rgba(0, 0, 0, 0.4);
}

.bm-page-software .play-button:hover {
  transform: scale(1.06);
}

.bm-page-software .play-button i {
  margin-left: 3px;
}

.bm-page-software .buffering-indicator {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(10, 22, 40, 0.92);
  color: var(--bm-fg-on-dark);
  padding: var(--bm-space-4) var(--bm-space-6);
  border-radius: var(--bm-radius-md);
  text-align: center;
  z-index: 10;
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.22);
}

.bm-page-software .buffering-spinner {
  font-size: var(--bm-text-lg);
  margin-bottom: var(--bm-space-2);
  color: var(--sd-accent);
}

.bm-page-software .buffering-text {
  font-size: var(--bm-text-sm);
}

/* 截图画廊 */
.bm-page-software .bm-sd-shot-grid {
  display: flex;
  flex-direction: column;
  gap: clamp(2rem, 5vw, 3.5rem);
}

.bm-page-software .bm-sd-shot {
  margin: 0;
  border-radius: 1rem;
  overflow: hidden;
  background: var(--bm-surface-card);
  box-shadow: var(--bm-shadow-md);
}

.bm-page-software .screenshot-image {
  width: 100%;
  max-height: min(88vh, 1200px);
  height: auto;
  min-height: 220px;
  object-fit: contain;
  display: block;
  background: var(--bm-surface-muted);
  cursor: zoom-in;
}

.bm-page-software .bm-sd-shot--zoomable:focus-within .screenshot-image,
.bm-page-software .bm-sd-shot--zoomable:hover .screenshot-image {
  outline: none;
}

.bm-page-software .bm-sd-shot--zoomable .screenshot-image:focus-visible {
  outline: 2px solid var(--bm-brand);
  outline-offset: 3px;
}

/* 截图大图预览 */
.bm-image-lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(1rem, 4vw, 2.5rem);
  background: rgba(15, 33, 25, 0.88);
  backdrop-filter: none;
}

.bm-image-lightbox[hidden] {
  display: none !important;
}

.bm-image-lightbox__img {
  max-width: min(96vw, 1600px);
  max-height: 92vh;
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}

.bm-image-lightbox__close {
  position: absolute;
  top: max(1rem, env(safe-area-inset-top));
  right: max(1rem, env(safe-area-inset-right));
  width: 2.75rem;
  height: 2.75rem;
  border: none;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  font-size: 1.75rem;
  line-height: 1;
  cursor: pointer;
}

.bm-image-lightbox__close:hover {
  background: rgba(255, 255, 255, 0.22);
}

.bm-page-software .bm-sd-shot-caption {
  padding: var(--bm-space-4) var(--bm-space-6);
  text-align: center;
  font-size: var(--bm-text-sm);
  color: var(--bm-text-muted);
  border-top: 1px solid var(--bm-border-light);
}

/* 下载 — 大磁贴栅格 */
.bm-page-software .bm-sd-download-grid {
  display: grid;
  gap: var(--bm-space-4);
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .bm-page-software .bm-sd-download-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .bm-page-software .bm-sd-download-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.bm-page-software .download-link {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: space-between;
  min-height: 7.5rem;
  gap: var(--bm-space-4);
  padding: var(--bm-space-6);
  background: var(--bm-surface-card);
  color: var(--bm-text);
  text-decoration: none;
  border-radius: 1rem;
  border: 1px solid var(--bm-border-light);
  font-weight: 700;
  font-size: var(--bm-text-md);
  letter-spacing: -0.02em;
  transition:
    transform 0.22s ease,
    box-shadow 0.22s ease,
    border-color 0.22s ease,
    color 0.22s ease;
  box-shadow: var(--bm-shadow-sm);
}

.bm-page-software .download-link:hover {
  transform: translateY(-3px);
  border-color: rgba(var(--bm-brand-rgb), 0.14);
  box-shadow: var(--bm-shadow-hover);
  color: var(--bm-text);
}

.bm-page-software .download-link:active {
  transform: translateY(-2px);
}

.bm-page-software .download-link:focus-visible {
  outline: none;
  border-color: rgba(var(--bm-brand-rgb), 0.28);
  box-shadow:
    0 4px 24px rgba(0, 0, 0, 0.04),
    0 0 0 3px rgba(var(--bm-brand-rgb), 0.16);
}

.bm-page-software .download-link:hover:focus-visible {
  box-shadow:
    0 20px 48px rgba(var(--bm-brand-rgb), 0.08),
    0 0 0 3px rgba(var(--bm-brand-rgb), 0.16);
}

.bm-page-software .download-link > div {
  display: flex;
  align-items: center;
  gap: var(--bm-space-3);
}

.bm-page-software .download-link > .bm-sd-dl-arrow {
  align-self: flex-end;
  font-size: var(--bm-text-lg);
  color: var(--bm-text-muted);
}

.bm-page-software .download-link:hover > .bm-sd-dl-arrow {
  color: var(--bm-brand);
}

/* 相关推荐 */
.bm-page-software .bm-sd-topic-band--related {
  background: var(--bm-surface-alt);
  color: var(--bm-text);
  padding-bottom: clamp(4rem, 10vw, 6rem);
}

.bm-page-software .bm-sd-topic-band--related .bm-sd-topic-kicker {
  color: var(--bm-section-kicker);
}

.bm-page-software .bm-sd-topic-band--related .bm-sd-topic-h2 {
  color: var(--bm-text);
}

.bm-page-software .bm-sd-topic-band--related .bm-sd-topic-lead {
  color: var(--bm-text-secondary);
}

.bm-page-software .bm-sd-related-grid {
  display: grid;
  gap: var(--bm-space-4);
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .bm-page-software .bm-sd-related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1200px) {
  .bm-page-software .bm-sd-related-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.bm-page-software .related-item {
  background: var(--bm-surface-card);
  border: 1px solid var(--bm-border-light);
  border-radius: 1rem;
  padding: var(--bm-space-6);
  text-decoration: none;
  color: inherit;
  display: block;
  min-height: 8.5rem;
  transition:
    background 0.22s ease,
    border-color 0.22s ease,
    transform 0.22s ease,
    box-shadow 0.22s ease;
  box-shadow: var(--bm-shadow-card);
}

.bm-page-software .related-item:hover {
  background: var(--bm-surface-card);
  border-color: var(--bm-border-light-strong);
  transform: translateY(-3px);
  box-shadow: var(--bm-shadow-hover);
  color: inherit;
}

.bm-page-software .related-item:active {
  transform: translateY(-1px);
}

.bm-page-software .related-item:focus-visible {
  outline: none;
  border-color: rgba(255, 255, 255, 0.4);
  box-shadow: var(--sd-focus-ring);
}

.bm-page-software .related-item-title {
  font-weight: 700;
  font-size: var(--bm-text-lg);
  color: var(--bm-text);
  line-height: var(--bm-leading-snug);
  letter-spacing: -0.02em;
}

.bm-page-software .related-item-desc {
  color: var(--bm-text-muted);
  font-size: var(--bm-text-sm);
  margin-top: var(--bm-space-3);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 懒加载 */
.bm-page-software img[data-src] {
  opacity: 0;
  transition: opacity 0.3s ease;
}

.bm-page-software img[data-src].loaded {
  opacity: 1;
}

@keyframes bm-slide-in-right {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes bm-slide-out-right {
  from {
    transform: translateX(0);
    opacity: 1;
  }
  to {
    transform: translateX(100%);
    opacity: 0;
  }
}

.bm-page-software .download-toast,
.bm-page-software .download-error-toast {
  font-family: var(--bm-font-sans);
  font-size: var(--bm-text-sm);
  font-weight: 500;
}

.bm-page-software .download-toast .toast-content,
.bm-page-software .download-error-toast .toast-content {
  display: flex;
  align-items: center;
}

.bm-page-software .bm-share-poster {
  max-width: 100%;
  max-height: 70vh;
  border-radius: var(--bm-radius-lg);
  border: 1px solid var(--bm-border-light);
}

.bm-page-software #shareModal .modal-content {
  border-radius: var(--bm-radius-xl);
  border: 1px solid var(--bm-border-light);
}

/* —— 进入式：首屏同步显现 + 滚动整壳丝滑渐入（无内层错开）—— */
html.bm-sd-topic-active {
  scroll-behavior: smooth;
}

.bm-page-software .bm-sd-enter:not(.is-visible) {
  opacity: 0;
  transform: translate3d(0, 24px, 0);
  pointer-events: none;
}

.bm-page-software .bm-sd-topic-hero .bm-sd-enter.is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0);
  pointer-events: auto;
  transition:
    opacity var(--sd-enter-hero-opacity) cubic-bezier(0.33, 1, 0.32, 1),
    transform var(--sd-enter-hero-transform) cubic-bezier(0.33, 1, 0.32, 1);
  transition-delay: var(--sd-enter-hero-delay), var(--sd-enter-hero-delay);
}

.bm-page-software .bm-sd-topic-hero .software-actions.bm-sd-enter.is-visible {
  pointer-events: auto;
}

/* 滚动区块：截图 / 下载 / 相关等与介绍、视频同一套整壳动画 */
.bm-page-software .bm-sd-enter--scroll:not(.is-visible) {
  opacity: 0;
  transform: translate3d(0, 36px, 0);
}

.bm-page-software .bm-sd-enter--scroll.is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0);
  transition:
    opacity var(--sd-enter-scroll-opacity) cubic-bezier(0.33, 1, 0.32, 1),
    transform var(--sd-enter-scroll-transform) cubic-bezier(0.33, 1, 0.32, 1);
}

.bm-page-software .bm-sd-enter--scroll.is-visible .video-wrapper {
  transition:
    transform var(--sd-enter-video) cubic-bezier(0.33, 1, 0.32, 1),
    box-shadow var(--sd-enter-video) ease,
    opacity var(--sd-enter-video) cubic-bezier(0.33, 1, 0.32, 1);
}

.bm-page-software .bm-sd-enter--scroll:not(.is-visible) .video-wrapper {
  transform: scale(0.991);
  opacity: 0.94;
}

.bm-page-software .bm-sd-enter--scroll.is-visible .video-wrapper {
  transform: scale(1);
  opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
  html.bm-sd-topic-active {
    scroll-behavior: auto;
  }

  .bm-page-software .bm-sd-enter,
  .bm-page-software .bm-sd-enter--scroll {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
    pointer-events: auto !important;
  }

  .bm-page-software .bm-sd-enter--scroll .video-wrapper {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  .bm-page-software .bm-sd-topic-hero .software-icon {
    transform: none !important;
    transition: none !important;
  }

  .bm-page-software .download-link,
  .bm-page-software .related-item,
  .bm-page-software .play-button,
  .bm-page-software .bm-sd-topic-band .download-btn-compact {
    transition: none;
  }
}