/* /app 15-momentum-grid：mgapp 异构（与 14 的 vapp--deck 无共用类名）
   流程：报头双栏 → 机壳+四格掠影 → 章节号+拍立得 → 版本看板 → 序号能力行 → 安装步骤 → FAQ 单列 → shelf */

.mgapp {
  --mgapp-ink: #1a1a1a;
  --mgapp-muted: rgba(26, 26, 26, 0.62);
  --mgapp-line: rgba(26, 26, 26, 0.1);
  --mgapp-paper: #f4f1ec;
  --mgapp-card: #fdfcfa;
  --mgapp-accent: #c45c26;
  --mgapp-accent2: #2d6a4f;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px 48px;
  box-sizing: border-box;
  color: var(--mgapp-ink);
}

.mgapp-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ----- mast：文案 + 竖向渠道 pill（非三卡横排） ----- */
.mgapp-mast {
  padding: 28px 0 8px;
  border-bottom: 1px solid var(--mgapp-line);
  margin-bottom: 28px;
}
.mgapp-mast__inner {
  display: grid;
  gap: 24px;
  align-items: start;
}
@media (min-width: 880px) {
  .mgapp-mast__inner {
    grid-template-columns: 1fr minmax(220px, 280px);
  }
}
.mgapp-mast__eyebrow {
  margin: 0 0 8px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mgapp-accent2);
}
.mgapp-mast__h1 {
  margin: 0 0 12px;
  font-size: clamp(1.5rem, 3.4vw, 2.15rem);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.02em;
}
.mgapp-mast__lead {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--mgapp-muted);
}
.mgapp-mast__notes {
  margin: 0;
  padding-left: 1.2rem;
  font-size: 14px;
  line-height: 1.55;
  color: var(--mgapp-muted);
}
.mgapp-mast__actions {
  padding: 18px 18px 20px;
  border-radius: 16px;
  background: var(--mgapp-card);
  border: 1px solid var(--mgapp-line);
  box-shadow: 0 12px 36px rgba(26, 26, 26, 0.06);
}
.mgapp-mast__actions-h {
  margin: 0 0 12px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mgapp-muted);
}
.mgapp-pill {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
  padding: 12px 14px;
  border-radius: 12px;
  text-decoration: none;
  border: 2px solid var(--mgapp-line);
  background: var(--mgapp-paper);
  transition: border-color 0.15s ease, transform 0.12s ease;
}
.mgapp-pill:last-child {
  margin-bottom: 0;
}
.mgapp-pill:hover {
  border-color: var(--mgapp-accent);
  transform: translateX(2px);
}
.mgapp-pill__tag {
  flex: 0 0 auto;
  min-width: 4.5rem;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mgapp-accent2);
}
.mgapp-pill__txt {
  font-size: 14px;
  font-weight: 700;
  color: var(--mgapp-ink);
}
.mgapp-pill--apk {
  border-left: 4px solid var(--mgapp-accent);
}
.mgapp-pill--ios {
  border-left: 4px solid #1a1a1a;
}
.mgapp-pill--web {
  border-left: 4px solid #94a3b8;
}

/* ----- stage：单 bezel + 2×2 掠影（非全宽大 cinema + mockwall 阵列） ----- */
.mgapp-stage {
  margin-bottom: 40px;
}
.mgapp-stage__grid {
  display: grid;
  gap: 24px;
  align-items: center;
}
@media (min-width: 900px) {
  .mgapp-stage__grid {
    grid-template-columns: minmax(0, 340px) minmax(0, 1fr);
    gap: 32px;
  }
}
.mgapp-stage__device {
  display: flex;
  justify-content: center;
  min-width: 0;
  min-height: 0;
}
.mgapp-bezel {
  width: min(100%, 300px);
  min-width: 0;
  padding: 12px 12px 18px;
  border-radius: 36px;
  background: linear-gradient(160deg, #2d2d2d 0%, #0f0f0f 100%);
  box-shadow: 0 28px 60px rgba(0, 0, 0, 0.35);
}
.mgapp-bezel__speaker {
  display: block;
  width: 48px;
  height: 5px;
  margin: 0 auto 10px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.12);
}
/* 内屏与水印：图片绝对铺满，避免全局 cover 规则与 height:auto 叠加成「半幅图 + 灰底」 */
.mgapp-bezel__screen.vs-img-watermark {
  display: block;
  position: relative;
  width: 100%;
  aspect-ratio: 390 / 844;
  overflow: hidden;
  margin: 0;
  border-radius: 24px;
  border: 2px solid rgba(255, 255, 255, 0.08);
  background: #0b0b0b;
}
/* 机壳/掠影：裁剪层定框；铺图在 ::before 上用 var(--mgapp-shot-bg)（由内联 style 注入） */
.mgapp-bezel__screen.vs-img-watermark > .mgapp-shot-clip,
.mgapp-minishot__frame.vs-img-watermark > .mgapp-shot-clip {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 0;
  box-sizing: border-box;
  pointer-events: none;
}
.mgapp-bezel__screen.vs-img-watermark > .mgapp-shot-clip::before,
.mgapp-minishot__frame.vs-img-watermark > .mgapp-shot-clip::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-color: var(--mgapp-shot-fc, #0b0b0b);
  background-image: var(--mgapp-shot-bg, none);
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
  -webkit-background-size: cover;
}

.mgapp-stage__gridshots {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  min-width: 0;
}
.mgapp-minishot {
  margin: 0;
  min-width: 0;
}
.mgapp-minishot__frame.vs-img-watermark {
  position: relative;
  display: block;
  width: 100%;
  min-width: 0;
  aspect-ratio: 400 / 260;
  max-height: 160px;
  height: auto;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--mgapp-line);
  background: #e8e6e1;
}
.mgapp-minishot__cap {
  margin: 6px 2px 0;
  font-size: 12px;
  color: var(--mgapp-muted);
}

/* ----- chapter + polaroids（非 strip 三格 + mosaic） ----- */
.mgapp-chapter {
  margin-bottom: 40px;
}
.mgapp-chapter--deck {
  padding: 28px 18px;
  margin-bottom: 8px;
  background: var(--mgapp-paper);
  border-radius: 14px;
  border: 1px solid var(--mgapp-line);
}
.mgapp-chapter__head {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 22px;
}
.mgapp-chapter__no {
  flex: 0 0 auto;
  font-size: clamp(2.5rem, 6vw, 3.5rem);
  font-weight: 900;
  line-height: 1;
  color: rgba(196, 92, 38, 0.35);
  letter-spacing: -0.04em;
}
.mgapp-chapter__h {
  margin: 0 0 6px;
  font-size: 1.35rem;
  font-weight: 900;
}
.mgapp-chapter__sub {
  margin: 0;
  font-size: 14px;
  color: var(--mgapp-muted);
  line-height: 1.5;
}

/* 用 grid + minmax 保证每列有宽度；勿用仅有绝对定位子元素的 flex 项只靠 max-width，否则 figure 会塌成极窄条 */
.mgapp-polaroids {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px 20px;
  justify-items: center;
  align-items: end;
}
.mgapp-polaroids__item {
  margin: 0;
  width: 100%;
  max-width: 280px;
  padding: 10px 10px 14px;
  box-sizing: border-box;
  background: var(--mgapp-card);
  border-radius: 4px;
  box-shadow: 0 10px 28px rgba(26, 26, 26, 0.12);
  transform: rotate(-2deg);
}
.mgapp-polaroids__item--mid {
  transform: rotate(1.5deg) translateY(-12px);
  z-index: 1;
}
.mgapp-polaroids__img.vs-img-watermark {
  position: relative;
  display: block;
  width: 100%;
  min-width: 0;
  aspect-ratio: 480 / 320;
  max-height: 200px;
  height: auto;
  border-radius: 2px;
  overflow: hidden;
  background: #e8e6e1;
}
.mgapp-polaroids__img.vs-img-watermark > img:not(.site-img-wm__logo) {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}
.mgapp-polaroids__item figcaption {
  margin-top: 8px;
  text-align: center;
  font-size: 13px;
  font-weight: 700;
  color: var(--mgapp-muted);
}

/* ----- release board（非 spec 双栏） ----- */
.mgapp-release {
  margin-bottom: 40px;
}
.mgapp-release__board {
  display: grid;
  gap: 1px;
  background: var(--mgapp-line);
  border: 1px solid var(--mgapp-line);
  border-radius: 16px;
  overflow: hidden;
}
@media (min-width: 720px) {
  .mgapp-release__board {
    grid-template-columns: 220px 1fr;
  }
}
.mgapp-release__meta {
  padding: 20px 18px;
  background: #1a1a1a;
  color: #fdfcfa;
}
.mgapp-release__label {
  display: block;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.65;
  margin-bottom: 8px;
}
.mgapp-release__ver {
  display: block;
  font-size: 1.65rem;
  font-weight: 900;
  font-family: ui-monospace, monospace;
}
.mgapp-release__date {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  opacity: 0.75;
}
.mgapp-release__body {
  padding: 20px 18px;
  background: var(--mgapp-card);
}
.mgapp-release__ul {
  margin: 0 0 12px;
  padding-left: 1.1rem;
  font-size: 14px;
  line-height: 1.55;
  color: var(--mgapp-muted);
}
.mgapp-release__muted {
  margin: 0 0 12px;
  font-size: 14px;
  color: var(--mgapp-muted);
}
.mgapp-release__more {
  font-size: 14px;
  font-weight: 800;
  color: var(--mgapp-accent);
  text-decoration: none;
}
.mgapp-release__more:hover {
  text-decoration: underline;
}

/* ----- feat rows（非 vapp-matrix 大图宫格） ----- */
.mgapp-featlist {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--mgapp-line);
}
.mgapp-featrow {
  display: grid;
  gap: 14px;
  align-items: center;
  padding: 18px 0;
  border-bottom: 1px solid var(--mgapp-line);
}
@media (min-width: 640px) {
  .mgapp-featrow {
    grid-template-columns: 52px 200px 1fr;
  }
}
.mgapp-featrow__idx {
  font-size: 1.1rem;
  font-weight: 900;
  color: var(--mgapp-accent);
  font-family: ui-monospace, monospace;
}
.mgapp-featrow__fig.vs-img-watermark {
  position: relative;
  display: block;
  margin: 0;
  width: 100%;
  height: 100px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--mgapp-line);
  background: #e8e6e1;
}
.mgapp-featrow__fig.vs-img-watermark > img:not(.site-img-wm__logo) {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.mgapp-featrow__h {
  margin: 0 0 4px;
  font-size: 1.02rem;
}
.mgapp-featrow__p {
  margin: 0;
  font-size: 14px;
  color: var(--mgapp-muted);
  line-height: 1.5;
}

/* ----- install ----- */
.mgapp-install {
  margin-bottom: 40px;
  padding: 28px 0;
  border-top: 1px solid var(--mgapp-line);
}
.mgapp-install__h {
  margin: 0 0 18px;
  font-size: 1.25rem;
  font-weight: 900;
}
.mgapp-install__steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: mgstep;
}
.mgapp-install__step {
  position: relative;
  padding: 0 0 20px 36px;
  border-left: 2px solid var(--mgapp-line);
  margin-left: 8px;
}
.mgapp-install__step:last-child {
  border-left-color: transparent;
}
.mgapp-install__step::before {
  counter-increment: mgstep;
  content: counter(mgstep, decimal-leading-zero);
  position: absolute;
  left: -13px;
  top: 0;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--mgapp-accent2);
  color: #fff;
  font-size: 11px;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
}
.mgapp-install__strong {
  display: block;
  margin-bottom: 4px;
  font-size: 15px;
}
.mgapp-install__p {
  margin: 0;
  font-size: 14px;
  color: var(--mgapp-muted);
  line-height: 1.55;
}
.mgapp-install__legal {
  margin: 8px 0 0;
  font-size: 13px;
  color: var(--mgapp-muted);
}

/* ----- FAQ 单列 ----- */
.mgapp-faq {
  margin-bottom: 40px;
}
.mgapp-faq__h {
  margin: 0 0 16px;
  font-size: 1.25rem;
  font-weight: 900;
}
.mgapp-faq__stack {
  max-width: 720px;
  border-top: 1px solid var(--mgapp-line);
}
.mgapp-faq__item {
  border-bottom: 1px solid var(--mgapp-line);
  padding: 0;
}
.mgapp-faq__q {
  cursor: pointer;
  padding: 14px 8px 14px 0;
  font-size: 15px;
  font-weight: 700;
  list-style: none;
}
.mgapp-faq__q::-webkit-details-marker {
  display: none;
}
.mgapp-faq__item[open] .mgapp-faq__q {
  color: var(--mgapp-accent2);
}
.mgapp-faq__a {
  margin: 0 0 14px;
  padding-right: 12px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--mgapp-muted);
}

/* ----- shelf CTA（替代 vapp-cta） ----- */
.mgapp-shelf {
  padding: 26px 22px;
  border-radius: 16px;
  background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
  color: #fdfcfa;
}
.mgapp-shelf__inner {
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: flex-start;
}
@media (min-width: 640px) {
  .mgapp-shelf__inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}
.mgapp-shelf__h {
  margin: 0 0 6px;
  font-size: 1.15rem;
  font-weight: 900;
}
.mgapp-shelf__p {
  margin: 0;
  font-size: 14px;
  opacity: 0.78;
  line-height: 1.5;
}
.mgapp-shelf__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.mgapp-shelf__nav a {
  display: inline-flex;
  padding: 9px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 800;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.28);
  color: #fff;
}
.mgapp-shelf__nav a:hover {
  background: rgba(255, 255, 255, 0.2);
}

body.app-pulsefield-page.layout-pulsefield #main-content {
  background: var(--mgapp-paper);
}

/*
 * 与 vstream /app 相同：横图 + 竖框 + 全局 height:auto 会叠成「中间一条 + 上下留白」。
 * 用 #mgapp-root 前缀（不依赖 body.layout-pulsefield），避免 body 类未齐时整段失效。
 */
#mgapp-root .mgapp-bezel__screen.vs-img-watermark {
  display: block !important;
  position: relative !important;
  width: 100% !important;
  aspect-ratio: 390 / 844 !important;
  overflow: hidden !important;
  margin: 0 !important;
  background: #0b0b0b !important;
}
#mgapp-root .mgapp-minishot__frame.vs-img-watermark,
#mgapp-root .mgapp-polaroids__img.vs-img-watermark,
#mgapp-root .mgapp-featrow__fig.vs-img-watermark {
  position: relative !important;
  overflow: hidden !important;
}
#mgapp-root .mgapp-polaroids__img.vs-img-watermark > img:not(.site-img-wm__logo),
#mgapp-root .mgapp-featrow__fig.vs-img-watermark > img:not(.site-img-wm__logo) {
  box-sizing: border-box !important;
  position: absolute !important;
  inset: 0 !important;
  width: 100% !important;
  height: 100% !important;
  max-width: none !important;
  max-height: none !important;
  margin: 0 !important;
  border: 0 !important;
  padding: 0 !important;
  display: block !important;
  object-fit: cover !important;
  object-position: center !important;
  vertical-align: top !important;
}
#mgapp-root .mgapp-bezel__screen.vs-img-watermark > .mgapp-shot-clip,
#mgapp-root .mgapp-minishot__frame.vs-img-watermark > .mgapp-shot-clip {
  position: absolute !important;
  inset: 0 !important;
  overflow: hidden !important;
  z-index: 0 !important;
  box-sizing: border-box !important;
  pointer-events: none !important;
}
#mgapp-root .mgapp-bezel__screen.vs-img-watermark > .mgapp-shot-clip::before,
#mgapp-root .mgapp-minishot__frame.vs-img-watermark > .mgapp-shot-clip::before {
  content: "" !important;
  position: absolute !important;
  inset: 0 !important;
  z-index: 0 !important;
  pointer-events: none !important;
  background-color: var(--mgapp-shot-fc, #0b0b0b) !important;
  background-image: var(--mgapp-shot-bg, none) !important;
  background-repeat: no-repeat !important;
  background-position: center !important;
  background-size: cover !important;
  -webkit-background-size: cover !important;
}