@font-face { font-family: "Display"; src: url("6b62088e2b1c.woff2") format("woff2"); font-weight: 900; font-display: swap; }

/* 定位一律写 top/right/bottom/left，不用 inset：Chromium 87 以下的旧版微信、QQ 内核不认，遮罩会铺不满。 */

/* ── 设计令牌 ──────────────────────────────────────────────
   背景近黑略偏冷；文字只有白和次要灰两档；不设强调色，颜色全部来自壁纸。 */
:root {
  color-scheme: dark;
  --bg: #07080a;
  --bg-raise: #111215;
  --fg: #f5f5f2;
  --muted: #8e9197;
  --line: rgba(245, 245, 242, .1);
  --glass: rgba(245, 245, 242, .1);
  --font-text: -apple-system, BlinkMacSystemFont, "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Microsoft YaHei", sans-serif;

  --t-hero: clamp(56px, 12vw, 168px);
  --t-h2: clamp(36px, 7vw, 96px);
  --t-8k: clamp(120px, 30vw, 360px);
  --t-body: clamp(16px, 1.5vw, 18px);
  --t-lede: clamp(16px, 1.9vw, 22px);

  --s-1: 8px; --s-2: 16px; --s-3: 24px; --s-4: 32px; --s-6: 48px; --s-8: 64px;
  --section-y: clamp(120px, 13vw, 160px);
  --pad-l: max(clamp(16px, 4vw, 48px), env(safe-area-inset-left));
  --pad-r: max(clamp(16px, 4vw, 48px), env(safe-area-inset-right));
  --max: 1200px;
  --radius: 12px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }                                   /* 契约 */
html { -webkit-text-size-adjust: 100%; }
html, body { margin: 0; background: var(--bg); color: var(--fg); }
body {
  font: 400 var(--t-body)/1.65 var(--font-text);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img { max-width: 100%; display: block; }
/* 构建给每张图配了一张 16 像素宽的模糊缩略图（内联 style 的 background-image），原图载完之前先显示它 */
img { background-size: cover; background-position: center; background-repeat: no-repeat; }
:focus-visible { outline: 2px solid var(--fg); outline-offset: 3px; }
.display { font-family: "Display", -apple-system, "PingFang SC", sans-serif; font-weight: 900; line-height: 1.04; letter-spacing: -.035em; margin: 0; text-wrap: balance; }
h2.display { font-size: var(--t-h2); }

/* ── 顶栏 ── */
.topbar {
  position: fixed; top: 0; right: 0; left: 0; z-index: 5;
  display: flex; align-items: center; justify-content: space-between;
  padding: max(10px, env(safe-area-inset-top)) var(--pad-r) 10px var(--pad-l);
  background: rgba(7, 8, 10, .5);
  -webkit-backdrop-filter: saturate(150%) blur(16px); backdrop-filter: saturate(150%) blur(16px);
  transition: background-color .3s;
}
/* 在首屏上时透明、不模糊：模糊要逐帧重算底下滚动的图片墙。main.js 按首屏是否在顶栏下面切换。 */
.topbar.over-hero { background: transparent; -webkit-backdrop-filter: none; backdrop-filter: none; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 17px; font-weight: 700; letter-spacing: .04em; text-decoration: none; }
.brand img { width: 28px; height: 28px; border-radius: 7px; }
.topbar-download { font-size: 14px; font-weight: 600; text-decoration: none; padding: 6px 16px; border-radius: 999px; border: 1px solid rgba(245, 245, 242, .22); transition: background-color .2s; }
.topbar-download:hover { background: var(--glass); }

/* ── 首屏：图片墙 ── */
.hero { position: relative; height: 100vh; height: 100svh; min-height: 600px; overflow: hidden; isolation: isolate; }
.wall { position: absolute; top: 0; right: 0; bottom: 0; left: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; padding: 0 10px; }
.wall-col { overflow: hidden; contain: layout paint; }
.wall-col:nth-child(4) { display: none; }
.wall-img { width: 100%; height: auto; margin-bottom: 10px; border-radius: var(--radius); background-color: var(--bg-raise); }
/* 每列时长由 build 按列高算，桌面上每秒约 40–54 px；首屏滚走后暂停。 */
.wall-track { animation: wall-up var(--speed, 150s) linear infinite; will-change: transform; -webkit-backface-visibility: hidden; backface-visibility: hidden; }   /* 契约 */
.wall-col:nth-child(even) .wall-track { animation-name: wall-down; }
.hero.off .wall-track { animation-play-state: paused; }
@keyframes wall-up { from { transform: translate3d(0, 0, 0); } to { transform: translate3d(0, -50%, 0); } }
@keyframes wall-down { from { transform: translate3d(0, -50%, 0); } to { transform: translate3d(0, 0, 0); } }
@media (min-width: 900px) {
  .wall { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; padding: 0 14px; }
  .wall-col:nth-child(4) { display: block; }
  .wall-img { margin-bottom: 14px; }
}
/* 四周压暗，中间最深，保证标题对比度；底部融进背景。 */
.hero-shade {
  position: absolute; top: 0; right: 0; bottom: 0; left: 0;
  background:
    radial-gradient(ellipse 72% 52% at 50% 50%, rgba(7, 8, 10, .9) 0%, rgba(7, 8, 10, .66) 55%, rgba(7, 8, 10, .5) 100%),
    linear-gradient(to bottom, rgba(7, 8, 10, .62) 0%, rgba(7, 8, 10, 0) 20%, rgba(7, 8, 10, 0) 72%, var(--bg) 100%);
}
.hero-copy {
  position: relative; z-index: 1; height: 100%;
  display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center;
  padding: 72px var(--pad-r) 40px var(--pad-l);
}
.hero-copy h1 { font-size: var(--t-hero); line-height: 1; letter-spacing: -.05em; text-shadow: 0 2px 48px rgba(0, 0, 0, .4); }
.br-mobile { display: inline; }
@media (min-width: 700px) { .br-mobile { display: none; } }
.lede { margin: var(--s-3) 0 0; font-size: var(--t-lede); color: rgba(245, 245, 242, .82); letter-spacing: .03em; }

/* 提示条在按钮上方 */
.notice {
  display: inline-flex; align-items: center; gap: 10px;
  margin-top: var(--s-4); padding: 6px 6px 6px 18px; border-radius: 999px;
  font-size: 14px; background: rgba(28, 29, 33, .92); border: 1px solid rgba(245, 245, 242, .18);
}
.notice-close { flex: none; width: 30px; height: 30px; display: grid; place-items: center; border: 0; border-radius: 50%; background: var(--glass); color: inherit; font-size: 18px; line-height: 1; cursor: pointer; }
.cta { margin-top: var(--s-6); display: flex; align-items: center; justify-content: center; gap: var(--s-4); }
.notice:not([hidden]) + .cta { margin-top: var(--s-2); }

/* ── 按钮 ── */
.actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 52px; min-width: 168px; padding: 0 30px; border-radius: 999px;
  font-size: 16px; font-weight: 700; letter-spacing: .02em; text-decoration: none;
  transition: transform .2s var(--ease), background-color .2s, border-color .2s;
  -webkit-tap-highlight-color: transparent;
}
.btn:active { transform: scale(.97); }
.btn-android { background: var(--fg); color: #000; }
.btn-android:hover { background: #fff; }
.btn-ios { border: 1.5px solid rgba(245, 245, 242, .66); color: var(--fg); background: rgba(7, 8, 10, .35); }
.btn-ios:hover { background: rgba(245, 245, 242, .12); border-color: var(--fg); }
/* 契约：按设备显示 */
[data-device="android"] .btn-ios, [data-device="ios"] .btn-android,
[data-device="harmony"] .btn-android, [data-device="harmony"] .btn-ios { display: none; }
.harmony-note { display: none; margin: 0; padding: 12px 24px; border-radius: 999px; border: 1px solid var(--line); color: rgba(245, 245, 242, .82); }
[data-device="harmony"] .harmony-note { display: block; }

/* 二维码只在电脑上显示；首屏放在按钮右侧 */
.qr { display: none; align-items: center; gap: 12px; }
@media (min-width: 900px) {
  html:not([data-device="android"]):not([data-device="ios"]):not([data-device="harmony"]) .qr { display: flex; }
}
.qr svg { flex: none; width: 84px; height: 84px; padding: 5px; background: #fff; border-radius: 10px; }
.qr p { margin: 0; font-size: 13px; color: var(--muted); }
.qr-hero { flex-direction: column; gap: 6px; padding-left: var(--s-4); border-left: 1px solid rgba(245, 245, 242, .18); }
.qr-hero svg { width: 76px; height: 76px; }
.qr-hero p { font-size: 12px; }

/* ── 章节通用 ── */
.section {
  padding: var(--section-y) max(var(--pad-r), calc((100% - var(--max)) / 2)) var(--section-y) max(var(--pad-l), calc((100% - var(--max)) / 2));
}

/* ── 8K ── */
#quality { text-align: center; }
h2.big-number { font-size: var(--t-8k); line-height: .8; letter-spacing: -.06em; }
/* 字距的一半补在左边，居中时视觉上不偏右 */
.spec-line { margin-top: clamp(32px, 4vw, 56px); margin-bottom: 0; padding-left: .16em; font-size: var(--t-lede); letter-spacing: .16em; color: rgba(245, 245, 242, .78); }
/* 全图和局部一样高：两列按「原图宽高比 : 1」分。构建把 --ar（原图宽/高）、--cols、焦点 --fx/--fy 和 --fs（局部边长占原图宽的比例）
   写在 .k8 的 style 里；下面的默认值是 3:4 原图的。--fw/--cw 是全图和局部的宽度。 */
.k8 {
  --gap: clamp(8px, 1.4vw, 16px); --ar: .75; --cols: .75fr 1fr; --fx: .5; --fy: .5; --fs: .1736;
  position: relative; display: grid; grid-template-columns: var(--cols); align-items: start; gap: var(--gap);
  max-width: 1040px; margin: var(--s-8) auto 0; container-type: inline-size;
}
.k8 img { width: 100%; height: auto; border-radius: var(--radius); background-color: var(--bg-raise); }
.k8-full { aspect-ratio: var(--ar); object-fit: cover; }
/* 右边的取景框：静态时是构建裁好的局部图；拖动后换成原分辨率的图块（main.js 按需加载），底下垫着全图预览。 */
.k8-view { position: relative; z-index: 2; aspect-ratio: 1; overflow: hidden; border-radius: var(--radius); background: var(--bg-raise); box-shadow: 0 30px 80px -30px rgba(0, 0, 0, .9); }
.k8-view .k8-crop { position: absolute; top: 0; left: 0; z-index: 1; width: 100%; height: 100%; object-fit: cover; border-radius: 0; }
.k8-view.live .k8-crop { visibility: hidden; }
.k8-layer { position: absolute; top: 0; left: 0; transform-origin: 0 0; background-size: 100% 100%; }
.k8-layer img { position: absolute; max-width: none; border-radius: 0; background: none; }
.k8.interactive .k8-full { cursor: crosshair; touch-action: none; -webkit-user-select: none; user-select: none; -webkit-touch-callout: none; }
.k8.interactive .k8-view { cursor: grab; }
.k8.interactive .k8-view.dragging { cursor: grabbing; }
.k8-hint { margin: var(--s-3) 0 0; font-size: 14px; color: var(--muted); }
.k8-full:focus-visible { outline: 2px solid rgba(255, 255, 255, .9); outline-offset: 3px; }
.k8-mark { display: none; }
@supports (width: 1cqw) {
  .k8-mark {
    --fw: calc((100cqw - var(--gap)) * var(--ar) / (1 + var(--ar)));
    display: block; position: absolute; z-index: 1; pointer-events: none;
    width: calc(var(--fs) * var(--fw)); aspect-ratio: 1;
    left: calc(var(--fx) * var(--fw) - var(--fs) * var(--fw) / 2);
    top: calc(var(--fy) * var(--fw) / var(--ar) - var(--fs) * var(--fw) / 2);
    border: 1.5px solid rgba(255, 255, 255, .92); border-radius: 3px;
    box-shadow: 0 0 0 1px rgba(0, 0, 0, .35);
  }
}
/* 支持滚动时间线时，局部图随滚动从全图的方框里放大出来；减少动态效果时停住。 */
@supports (animation-timeline: view()) and (width: 1cqw) {
  @media (prefers-reduced-motion: no-preference) {
    .k8-view {
      --fw: calc((100cqw - var(--gap)) * var(--ar) / (1 + var(--ar)));
      --cw: calc((100cqw - var(--gap)) / (1 + var(--ar)));
      animation: k8-zoom linear both;
      animation-timeline: view();
      animation-range: entry 0% cover 40%;
    }
    @keyframes k8-zoom {
      from {
        transform: translate(calc(var(--fx) * var(--fw) - var(--fw) - var(--gap) - var(--cw) / 2), calc((var(--fy) - .5) * var(--cw))) scale(calc(var(--fs) * var(--ar)));
        border-radius: 2px;
      }
      to { transform: none; }
    }
  }
}

/* ── 样机 ──
   屏幕用绝对定位内缩出边框：横向百分比按样机宽、纵向按样机高，边框和圆角都跟着样机自己的大小走。
   （百分比内边距按外层宽度算，样机放进大的定位框里边框就会变粗。）
   手机外形 9:19.5，边框 3.2% 宽；平板横放 1.43:1，边框 2.6% 宽。内圆角 = 外圆角 − 边框。 */
.phone, .tablet {
  position: relative;
  background: linear-gradient(150deg, #3b3c41, #141518 38%, #222327);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .14), 0 40px 80px -30px rgba(0, 0, 0, .9);
}
.phone { aspect-ratio: 9 / 19.5; border-radius: 16% / 7.4%; }
.phone-screen { position: absolute; top: 1.48%; right: 3.2%; bottom: 1.48%; left: 3.2%; overflow: hidden; border-radius: 13.7% / 6.1%; background: #000; }
.phone-screen::after { content: ""; position: absolute; z-index: 1; top: 1.6%; left: 50%; width: 30%; height: 4%; transform: translateX(-50%); border-radius: 999px; background: #000; }
.tablet { aspect-ratio: 1.43; border-radius: 4.6% / 6.6%; }
.tablet::after { content: ""; position: absolute; top: 1.86%; left: 50%; width: .8%; aspect-ratio: 1; transform: translate(-50%, -50%); border-radius: 50%; background: #0a0a0c; }
.tablet-screen { position: absolute; top: 3.72%; right: 2.6%; bottom: 3.72%; left: 2.6%; overflow: hidden; border-radius: 2.1% / 3.1%; background: #000; }
.phone-screen img, .tablet-screen img { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; }
.device-stage img, .color-stage img { transition: opacity .35s var(--ease); }

/* 多设备：平板在左后方，手机在右前方，错落 */
#devices { text-align: center; }
.device-stage { position: relative; max-width: 1000px; margin: var(--s-8) auto 0; padding-bottom: 22%; }
.device-stage .tablet { width: 86%; }
.device-stage .phone { position: absolute; z-index: 1; right: 0; bottom: 0; width: 26%; }
@media (min-width: 700px) {
  .device-stage { padding-bottom: 8%; }
  .device-stage .tablet { width: 84%; }
  .device-stage .phone { width: 22%; }
}
.device-stage.swapping img { opacity: 0; }

/* ── 按颜色找图 ── */
.colors-layout { display: grid; gap: var(--s-6); }
@media (min-width: 900px) { .colors-layout { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); align-items: center; gap: var(--s-8); } }
/* 一行三个，等宽 */
.swatches { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; max-width: 360px; margin-top: var(--s-4); }
.swatch {
  display: flex; align-items: center; justify-content: center; gap: 10px; min-height: 44px; padding: 0 16px 0 12px;
  border: 1px solid var(--line); border-radius: 999px; background: transparent;
  color: var(--muted); font: inherit; font-size: 15px; font-weight: 600; cursor: pointer;
  transition: color .2s, background-color .2s, border-color .2s;
}
.swatch::before { content: ""; width: 18px; height: 18px; border-radius: 50%; background: var(--sw); box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .2); }
.swatch:hover { color: var(--fg); border-color: rgba(245, 245, 242, .3); }
.swatch[aria-pressed="true"] { color: var(--fg); background: rgba(245, 245, 242, .08); border-color: rgba(245, 245, 242, .55); }
.color-stage { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); align-items: center; gap: clamp(12px, 3vw, 32px); }
.color-stage .phone { width: 100%; max-width: 290px; justify-self: end; }
.color-thumbs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(8px, 1.2vw, 14px); max-width: 380px; }
.color-thumb { width: 100%; height: auto; aspect-ratio: 3 / 4; object-fit: cover; border-radius: 10px; background-color: var(--bg-raise); }
.color-stage.swapped img { animation: fade-in .5s var(--ease); }
@keyframes fade-in { from { opacity: .2; } }

/* ── 分类条：大字、低对比、缓慢滚动 ── */
#categories { padding: clamp(48px, 7vw, 88px) 0; }
.cat-strip { overflow: hidden; -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); }
.cat-track {                                                                                     /* 契约 */
  display: flex; width: max-content; animation: cat-left 90s linear infinite;
  font-family: "Display", -apple-system, "PingFang SC", sans-serif; font-weight: 900;
  font-size: clamp(44px, 8vw, 112px); line-height: 1.25; letter-spacing: -.02em; color: rgba(245, 245, 242, .14);
}
.cat-track span { padding-right: .75em; white-space: nowrap; }
@keyframes cat-left { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ── 商用图库 ── */
#commercial .body { margin-top: var(--s-3); margin-bottom: 0; max-width: 30em; font-size: var(--t-lede); color: var(--muted); }
.mini-wall { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 6px; margin-top: var(--s-6); }
@media (min-width: 700px) { .mini-wall { grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 8px; } }
.mini-img { width: 100%; height: auto; aspect-ratio: 3 / 4; object-fit: cover; border-radius: 8px; background-color: var(--bg-raise); transition: transform .4s var(--ease); }
.mini-img:hover { transform: scale(1.03); }

/* ── 下载：居中，上下留白很大 ── */
#download {
  text-align: center; padding-top: clamp(160px, 20vw, 240px); padding-bottom: clamp(160px, 20vw, 240px);
  background: radial-gradient(ellipse 60% 45% at 50% 50%, rgba(245, 245, 242, .055), transparent 70%);
}
#download .actions { margin-top: var(--s-6); }
#download .qr { flex-direction: column; justify-content: center; margin-top: var(--s-6); }
#download .qr svg { width: 112px; height: 112px; padding: 6px; }

/* ── 页脚 ── */
.footer {
  padding: var(--s-6) var(--pad-r) calc(var(--s-6) + env(safe-area-inset-bottom)) var(--pad-l);
  border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; line-height: 2; text-align: center;
}
.footer p { margin: 0; }
.footer a { text-decoration: none; transition: color .2s; }
.footer a:hover { color: var(--fg); }

/* ── 首屏小字：口号上方的品牌名，属于 h1 的一部分（搜索结果和 AI 读到的标题是「图凌壁纸让图片，更美好」） ── */
.eyebrow {
  display: block; margin-bottom: var(--s-2);
  font-family: var(--font-text); font-size: var(--t-lede); font-weight: 600; line-height: 1.3;
  letter-spacing: .08em; color: rgba(245, 245, 242, .78);
}


/* ── 正文页（下载、404，以后的关于、常见问题、教程）：单栏阅读排版，不放图片墙，不加动效 ── */
.doc { max-width: calc(760px + var(--pad-l) + var(--pad-r)); margin: 0 auto; padding: calc(64px + var(--s-6)) var(--pad-r) var(--s-8) var(--pad-l); }
.crumbs { display: flex; flex-wrap: wrap; gap: var(--s-1); font-size: 14px; color: var(--muted); }
.crumbs a { text-decoration: none; transition: color .2s; }
.crumbs a:hover { color: var(--fg); }
.doc-title { margin-top: var(--s-3); font-size: clamp(36px, 6vw, 64px); }
.doc-updated { margin: var(--s-2) 0 0; font-size: 14px; color: var(--muted); }
.doc-body { margin-top: var(--s-6); line-height: 1.8; }
.doc-body > p:first-child { font-size: var(--t-lede); line-height: 1.7; }
.doc-body h2 { margin: var(--s-8) 0 var(--s-2); font-size: clamp(24px, 3vw, 30px); font-weight: 700; line-height: 1.3; letter-spacing: -.01em; }
.doc-body h3 { margin: var(--s-6) 0 var(--s-1); font-size: 19px; font-weight: 700; line-height: 1.4; }
.doc-body p, .doc-body ul, .doc-body ol { margin: 0 0 var(--s-2); }
.doc-body ul, .doc-body ol { padding-left: 1.4em; }
.doc-body li + li { margin-top: 4px; }
.doc-body a { text-underline-offset: 3px; }
/* sha256 这样的长串在 390px 宽下要能折行，不撑出横向滚动 */
.doc-body code { padding: 2px 6px; border-radius: 6px; background: var(--bg-raise); font: 14px/1.6 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; word-break: break-all; }
.doc-body table { width: 100%; margin: var(--s-2) 0 var(--s-4); border-collapse: collapse; font-size: 15px; }
.doc-body th, .doc-body td { padding: 12px 16px 12px 0; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.doc-body th { font-weight: 500; color: var(--muted); }
.doc-body td:first-child { white-space: nowrap; }
/* 下载按钮块：按钮靠左，电脑上二维码在右 */
.doc-cta {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--s-3);
  margin: var(--s-4) 0 var(--s-2); padding: var(--s-3); border-radius: var(--radius); background: var(--bg-raise);
}
.doc-cta .actions { justify-content: flex-start; }

/* ── 微信、QQ 里点安卓按钮的遮罩 ── */
.wx-mask {
  position: fixed; top: 0; right: 0; bottom: 0; left: 0; z-index: 10; display: flex; flex-direction: column; align-items: flex-end;
  padding: max(16px, env(safe-area-inset-top)) 24px 24px; background: rgba(0, 0, 0, .88);
  font-size: 20px; font-weight: 700; outline: none;
}
.wx-arrow { width: 56px; height: 76px; margin-right: 6px; color: var(--fg); }
.wx-mask p { margin: 16px 0 0; max-width: 11em; text-align: right; line-height: 1.5; }

/* ── 进场：静止时内容完整可见，只加一点上移 ── */
.reveal.pending { transform: translateY(28px); transition: transform .9s var(--ease); }
.reveal.pending.in { transform: none; }

/* 契约：减少动态效果时全部停住 */
@media (prefers-reduced-motion: reduce) {
  .wall-track, .wall-col:nth-child(even) .wall-track, .cat-track { animation: none; }   /* 偶数列那条选择器更具体，要一起写 */
  .reveal.pending { transform: none; transition: none; }
  .cat-strip { -webkit-mask-image: none; mask-image: none; }
  .cat-track { width: auto; flex-wrap: wrap; justify-content: center; padding: 0 var(--pad-r) 0 var(--pad-l); }
  .cat-track [aria-hidden="true"] { display: none; }
  .btn, .mini-img, .device-stage img, .color-stage img { transition: none; }
  .color-stage.swapped img { animation: none; }
}