/* Untouched — site styles. Zero external dependencies, system fonts only.
   Tokens first; every color in the file comes from these. */

:root {
  --bg: #F3F5F9;
  --surface: #FFFFFF;
  --surface-2: #E9EEF5;
  --ink: #0D1B2E;
  --ink-2: #43506A;
  --ink-3: #5E6A80;
  --line: #D8DFEA;
  --accent: #0A6CE0;
  --accent-hover: #0857B7;
  --accent-soft: #E1ECFB;
  --on-accent: #FFFFFF;
  --shadow: 0 1px 0 rgba(13, 27, 46, .04), 0 28px 60px -32px rgba(13, 27, 46, .38);
  --device: #0D1B2E;

  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", system-ui, Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", system-ui, Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;

  --wrap: 1160px;
  --gutter: 24px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 10px;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0A111C;
    --surface: #111B2A;
    --surface-2: #172336;
    --ink: #E8EEF7;
    --ink-2: #AFBACB;
    --ink-3: #909CB0;
    --line: #233149;
    --accent: #4D9CFF;
    --accent-hover: #7DB7FF;
    --accent-soft: #112A4D;
    --on-accent: #06101E;
    --shadow: 0 1px 0 rgba(0, 0, 0, .2), 0 28px 60px -30px rgba(0, 0, 0, .7);
    --device: #2A3953;
  }
}
:root[data-theme="dark"] {
  --bg: #0A111C; --surface: #111B2A; --surface-2: #172336; --ink: #E8EEF7; --ink-2: #AFBACB;
  --ink-3: #909CB0; --line: #233149; --accent: #4D9CFF; --accent-hover: #7DB7FF; --accent-soft: #112A4D;
  --on-accent: #06101E; --shadow: 0 1px 0 rgba(0,0,0,.2), 0 28px 60px -30px rgba(0,0,0,.7); --device: #2A3953;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-behavior: smooth; }
[id] { scroll-margin-top: 80px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 18px/1.6 var(--font);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
@media (max-width: 640px) { body { font-size: 17px; } }
img { display: block; max-width: 100%; height: auto; }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--accent-hover); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
::selection { background: var(--accent-soft); }
code, .mono { font-family: var(--mono); font-size: .88em; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
@media (max-width: 640px) { :root { --gutter: 16px; } }

h1, h2, h3 { font-family: var(--font-display); color: var(--ink); margin: 0; }
h1 { font-size: clamp(2.5rem, 5.4vw, 4.4rem); line-height: 1.02; font-weight: 750; letter-spacing: -0.035em; }
h2 { font-size: clamp(1.85rem, 3.3vw, 2.7rem); line-height: 1.08; font-weight: 720; letter-spacing: -0.028em; }
h3 { font-size: 1.2rem; line-height: 1.3; font-weight: 650; letter-spacing: -0.01em; }
p { margin: 0 0 1em; }
.lede { font-size: clamp(1.1rem, 1.6vw, 1.3rem); line-height: 1.55; color: var(--ink-2); max-width: 36em; }
.muted { color: var(--ink-3); }
.small { font-size: .88rem; line-height: 1.5; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  -webkit-backdrop-filter: saturate(1.6) blur(18px);
  backdrop-filter: saturate(1.6) blur(18px);
  border-bottom: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
}
.site-header .wrap { display: flex; align-items: center; gap: 20px; height: 62px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-weight: 650; letter-spacing: -0.01em; font-size: 1.05rem; }
.brand img { width: 30px; height: 30px; border-radius: 7px; }
.nav { display: flex; align-items: center; gap: 22px; margin-left: auto; }
.nav a { color: var(--ink-2); text-decoration: none; font-size: .95rem; white-space: nowrap; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink); }
.nav .lang { font-size: .9rem; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: var(--accent); color: var(--on-accent); text-decoration: none;
  font-weight: 600; font-size: .95rem; padding: 9px 16px; border-radius: 999px; white-space: nowrap;
}
.btn:hover { background: var(--accent-hover); color: var(--on-accent); }
.nav .btn, .nav .btn:hover { color: var(--on-accent); }
@media (max-width: 760px) {
  .nav .hide-sm { display: none; }
  .nav { gap: 16px; }
}
@media (max-width: 420px) {
  .site-header .wrap { gap: 12px; }
  .brand { font-size: 1rem; }
  .nav { gap: 14px; }
  .nav .btn { padding: 8px 13px; font-size: .9rem; }
}

/* ---------- Language hint ---------- */
.lang-hint { display: none; background: var(--accent-soft); color: var(--ink); font-size: .92rem; }
.lang-hint.show { display: block; }
.lang-hint .wrap { display: flex; gap: 14px; align-items: center; min-height: 44px; flex-wrap: wrap; padding-top: 6px; padding-bottom: 6px; }
.lang-hint button { margin-left: auto; background: none; border: 0; color: var(--ink-2); font: inherit; cursor: pointer; padding: 4px 6px; }

/* ---------- Hero ---------- */
.hero { padding: clamp(40px, 7vw, 88px) 0 clamp(8px, 2vw, 24px); }
.hero .wrap { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(32px, 5vw, 72px); align-items: center; }
.hero h1 { max-width: 11em; }
.hero .lede { margin-top: 22px; }
.cta { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; margin-top: 30px; }
.badge-link { display: inline-block; line-height: 0; border-radius: 9px; }
.badge-link img { height: 52px; width: auto; }
.cta .price-note { color: var(--ink-3); font-size: .92rem; line-height: 1.45; max-width: 18em; margin: 0; }
@media (max-width: 900px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .hero h1 { max-width: 12em; }
}

/* The one bold thing on the page: the original resolving out of the preview. */
.reveal-wrap { margin: 0; }
@property --pos { syntax: "<percentage>"; inherits: true; initial-value: 50%; }
@keyframes develop { from { --pos: 0%; } to { --pos: 50%; } }
.reveal {
  --pos: 50%;
  animation: develop 1.6s cubic-bezier(.22, .7, .2, 1) .6s both;
  position: relative; aspect-ratio: 3 / 2; border-radius: var(--radius-lg);
  overflow: hidden; background: var(--surface-2); box-shadow: var(--shadow);
  isolation: isolate; touch-action: pan-y;
}
.reveal img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.reveal .copy { clip-path: inset(0 0 0 var(--pos)); image-rendering: auto; }
.reveal .edge {
  position: absolute; top: 0; bottom: 0; left: var(--pos); width: 2px; margin-left: -1px;
  background: #fff; box-shadow: 0 0 0 1px rgba(13, 27, 46, .12), 0 0 18px rgba(255, 255, 255, .5);
  pointer-events: none; z-index: 2;
}
.reveal .knob {
  position: absolute; top: 50%; left: 50%; width: 40px; height: 40px; margin: -20px 0 0 -20px;
  border-radius: 50%; background: #fff; color: #0D1B2E; display: grid; place-items: center;
  box-shadow: 0 6px 18px rgba(13, 27, 46, .28);
}
.reveal .knob svg { width: 20px; height: 20px; }
.reveal .tag {
  position: absolute; bottom: 14px; z-index: 3; pointer-events: none;
  font: 600 .78rem/1 var(--font); letter-spacing: .01em; color: #fff;
  background: rgba(8, 16, 28, .55); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  padding: 8px 11px; border-radius: 999px; transition: opacity .3s;
}
.reveal .tag-orig { left: 14px; }
.reveal .tag-copy { right: 14px; }
.reveal input[type="range"] {
  position: absolute; inset: 0; width: 100%; height: 100%; margin: 0; z-index: 4;
  opacity: 0; cursor: ew-resize; -webkit-appearance: none; appearance: none;
}
.reveal.touched { animation: none; }
@media (prefers-reduced-motion: reduce) { .reveal { animation: none; } }
.reveal:has(input:focus-visible) { outline: 3px solid var(--accent); outline-offset: 4px; }
.file-strip {
  margin-top: 14px; display: grid; gap: 4px; padding: 14px 16px;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-md);
  font-family: var(--mono); font-size: .8rem; line-height: 1.5; color: var(--ink-2);
}
.file-strip .row { display: flex; gap: 12px; justify-content: space-between; flex-wrap: wrap; }
.file-strip .name { color: var(--ink); font-weight: 600; }
.file-strip .ok { color: var(--accent); white-space: nowrap; }
.reveal-wrap figcaption { margin-top: 10px; font-size: .82rem; color: var(--ink-3); }

/* ---------- Sections ---------- */
.section { padding: clamp(64px, 9vw, 120px) 0; }
.section + .section { padding-top: 0; }
.section-head { max-width: 44em; margin-bottom: clamp(32px, 4.5vw, 56px); }
.section-head h2 + p { margin-top: 18px; }
.section-head p { font-size: 1.12rem; color: var(--ink-2); }

/* Why: a real sequence, so it gets real numbers. */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; counter-reset: step; }
.steps > li { counter-increment: step; }
.steps .thumb { position: relative; aspect-ratio: 4 / 3; border-radius: var(--radius-md); overflow: hidden; background: var(--surface-2); }
.steps .thumb img { width: 100%; height: 100%; object-fit: cover; object-position: 48% 40%; transform: scale(2.1); transform-origin: 48% 38%; }
.steps .thumb .ring { position: absolute; right: 14px; bottom: 14px; width: 34px; height: 34px; color: #fff; filter: drop-shadow(0 2px 6px rgba(8, 16, 28, .5)); }
.steps .thumb .badge {
  position: absolute; left: 12px; top: 12px; font: 600 .75rem/1 var(--font); color: #fff;
  background: rgba(8, 16, 28, .55); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  padding: 7px 10px; border-radius: 999px;
}
.steps h3 { margin-top: 18px; display: flex; gap: 10px; align-items: baseline; }
.steps h3::before { content: counter(step); font-variant-numeric: tabular-nums; color: var(--accent); font-weight: 700; }
.steps p { margin-top: 8px; color: var(--ink-2); font-size: 1rem; }
.callout-line { margin-top: 36px; max-width: 44em; font-size: 1.12rem; color: var(--ink); }
@media (max-width: 820px) { .steps { grid-template-columns: 1fr; gap: 32px; } .steps .thumb { aspect-ratio: 16 / 9; } }

/* What it keeps: styled like an iOS Info sheet, because that's what it is. */
.keeps { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 6fr); gap: clamp(32px, 5vw, 72px); align-items: start; }
.keeps .section-head { margin-bottom: 0; position: sticky; top: 96px; }
.info { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow); overflow: hidden; }
.info-head { display: flex; align-items: center; gap: 12px; padding: 18px 20px; border-bottom: 1px solid var(--line); }
.info-head .file-icon { width: 34px; height: 40px; flex: none; }
.info-head .fname { font-family: var(--mono); font-weight: 600; font-size: .92rem; }
.info-head .fmeta { color: var(--ink-3); font-size: .82rem; }
.info dl { margin: 0; }
.info .row { display: grid; grid-template-columns: 9.5em minmax(0, 1fr); gap: 16px; padding: 16px 20px; border-top: 1px solid var(--line); }
.info .row:first-child { border-top: 0; }
.info dt { color: var(--ink-3); font-size: .92rem; }
.info dd { margin: 0; font-size: 1rem; line-height: 1.5; }
.info dd strong { font-weight: 620; }
.info dd .sub { display: block; color: var(--ink-3); font-size: .9rem; margin-top: 2px; }
@media (max-width: 900px) { .keeps { grid-template-columns: 1fr; } .keeps .section-head { position: static; } }
@media (max-width: 520px) { .info .row { grid-template-columns: 1fr; gap: 2px; } }

/* How it works */
.how { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 4fr); gap: clamp(32px, 6vw, 88px); align-items: center; }
.how ol { list-style: none; margin: 0; padding: 0; counter-reset: how; }
.how li { counter-increment: how; display: grid; grid-template-columns: 2.4em minmax(0, 1fr); gap: 4px 12px; padding: 22px 0; border-top: 1px solid var(--line); }
.how li:first-child { border-top: 0; padding-top: 0; }
.how li::before { content: counter(how); grid-row: span 2; font: 700 1.6rem/1.1 var(--font-display); color: var(--accent); font-variant-numeric: tabular-nums; }
.how li p { margin: 0; color: var(--ink-2); font-size: 1rem; }
.device {
  width: min(100%, 340px); margin: 0 auto; border: 11px solid var(--device); border-radius: 46px;
  background: var(--device); box-shadow: var(--shadow); overflow: hidden;
}
.device img { border-radius: 35px; width: 100%; }
@media (max-width: 900px) { .how { grid-template-columns: 1fr; } .device { width: min(100%, 300px); } }

/* Pricing */
.pricing { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(32px, 5vw, 72px); align-items: start; }
.plans { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.plan { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 2px 16px; padding: 20px 22px; border-top: 1px solid var(--line); align-items: baseline; }
.plan:first-child { border-top: 0; }
.plan .pname { font-weight: 640; }
.plan .price { font: 700 1.35rem/1 var(--font-display); letter-spacing: -0.02em; font-variant-numeric: tabular-nums; grid-row: span 2; align-self: center; }
.plan .pnote { color: var(--ink-3); font-size: .92rem; }
.plan.free { background: var(--surface-2); }
.promise { margin-top: 18px; display: grid; grid-template-columns: 22px minmax(0, 1fr); gap: 12px; padding: 18px 20px; border-radius: var(--radius-md); background: var(--accent-soft); font-size: 1rem; line-height: 1.55; }
.promise svg { width: 22px; height: 22px; color: var(--accent); margin-top: 2px; }
.promise p { margin: 0; }
.fineprint { margin-top: 14px; color: var(--ink-3); font-size: .86rem; }
@media (max-width: 900px) { .pricing { grid-template-columns: 1fr; } }

/* Honest boundary */
.boundary { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: clamp(28px, 4vw, 48px); display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(24px, 4vw, 56px); }
.boundary ul { margin: 0; padding-left: 1.1em; color: var(--ink-2); }
.boundary li { margin-bottom: .6em; }
.boundary li strong { color: var(--ink); font-weight: 620; }
@media (max-width: 820px) { .boundary { grid-template-columns: 1fr; } }

/* FAQ (home .faq, and question lists inside articles) */
.faq { max-width: 50em; }
.faq details, .prose details.faq-item { border-top: 1px solid var(--line); }
.faq details:last-of-type, .prose details.faq-item:last-of-type { border-bottom: 1px solid var(--line); }
.faq summary, .prose details.faq-item summary {
  list-style: none; cursor: pointer; display: flex; justify-content: space-between; gap: 20px;
  padding: 20px 0; font-weight: 620; font-size: 1.08rem; line-height: 1.4; color: var(--ink);
}
.prose details.faq-item summary { padding: 16px 0; font-size: 1.02rem; }
.faq summary::-webkit-details-marker, .prose details.faq-item summary::-webkit-details-marker { display: none; }
.faq summary::after, .prose details.faq-item summary::after {
  content: ""; flex: none; width: 11px; height: 11px; margin-top: .45em;
  border-right: 2px solid var(--ink-3); border-bottom: 2px solid var(--ink-3);
  transform: rotate(45deg); transition: transform .2s ease;
}
.faq details[open] summary::after, .prose details.faq-item[open] summary::after { transform: rotate(225deg); margin-top: .7em; }
.faq .answer, .prose details.faq-item .answer { padding: 0 0 20px; color: var(--ink-2); max-width: 44em; }
.faq .answer p:last-child, .prose details.faq-item .answer p:last-child { margin-bottom: 0; }
.prose details.faq-item + h2 { margin-top: 2em; }
@media (prefers-reduced-motion: reduce) { .faq summary::after, .prose details.faq-item summary::after { transition: none; } }

/* Guides list */
.guide-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 40px; }
.guide-list li { border-top: 1px solid var(--line); padding: 20px 0 22px; }
.guide-list a { text-decoration: none; color: var(--ink); }
.guide-list a:hover h3 { color: var(--accent); }
.guide-list p { margin: 6px 0 0; color: var(--ink-2); font-size: .98rem; }
@media (max-width: 820px) { .guide-list { grid-template-columns: 1fr; } }

/* Closing CTA */
.closing { text-align: left; display: flex; gap: 24px; align-items: center; justify-content: space-between; flex-wrap: wrap; border-top: 1px solid var(--line); padding-top: 40px; }
.closing h2 { font-size: clamp(1.6rem, 2.6vw, 2.1rem); max-width: 18em; }

/* ---------- Articles (guides, compare, support, privacy) ---------- */
.article-head { padding: clamp(36px, 6vw, 72px) 0 12px; }
.crumbs { font-size: .88rem; color: var(--ink-3); margin-bottom: 18px; }
.crumbs a { color: var(--ink-3); text-decoration: none; }
.crumbs a:hover { color: var(--accent); }
.crumbs span[aria-hidden] { margin: 0 6px; }
.article-head h1 { font-size: clamp(2.1rem, 4.4vw, 3.3rem); line-height: 1.06; max-width: 17em; }
.article-meta { margin-top: 16px; color: var(--ink-3); font-size: .9rem; }
.prose { max-width: 42rem; padding-bottom: clamp(56px, 8vw, 96px); }
.prose h2 { font-size: clamp(1.45rem, 2.4vw, 1.8rem); margin: 2.2em 0 .6em; letter-spacing: -0.02em; line-height: 1.2; }
.prose h3 { margin: 1.7em 0 .5em; }
.prose p, .prose li { color: var(--ink); }
.prose ul, .prose ol { padding-left: 1.3em; margin: 0 0 1.1em; }
.prose li { margin-bottom: .45em; }
.prose strong { font-weight: 640; }
.prose .ui { font-weight: 600; white-space: nowrap; }
.short-answer { margin: 28px 0 8px; padding: 22px 24px; border-radius: var(--radius-md); background: var(--surface); border: 1px solid var(--line); }
.short-answer h2 { font-size: 1rem; margin: 0 0 8px; color: var(--accent); letter-spacing: 0; }
.short-answer p { margin: 0; font-size: 1.08rem; line-height: 1.6; }
.short-answer p + p { margin-top: .7em; }
.note { margin: 1.4em 0; padding: 16px 18px; border-radius: var(--radius-sm); background: var(--surface-2); font-size: 1rem; }
.note p:last-child { margin-bottom: 0; }
.table-scroll { overflow-x: auto; margin: 1.4em 0 1.8em; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--surface); -webkit-overflow-scrolling: touch; }
table { border-collapse: collapse; width: 100%; font-size: .95rem; line-height: 1.45; }
th, td { text-align: left; vertical-align: top; padding: 13px 16px; border-top: 1px solid var(--line); }
thead th { border-top: 0; background: var(--surface-2); font-weight: 640; font-size: .88rem; color: var(--ink-2); }
tbody th { font-weight: 640; }
.table-scroll table { min-width: 620px; }
.app-card {
  display: grid; grid-template-columns: 64px minmax(0, 1fr); gap: 6px 18px; align-items: center;
  margin: 2.4em 0 1.6em; padding: 22px; border-radius: var(--radius-lg); background: var(--surface);
  border: 1px solid var(--line); box-shadow: var(--shadow);
}
.app-card img.icon { width: 64px; height: 64px; border-radius: 15px; grid-row: span 2; }
.app-card .t { font-weight: 650; font-size: 1.08rem; }
.app-card p { margin: 0; color: var(--ink-2); font-size: .98rem; grid-column: 2; }
.app-card .badge-link { grid-column: 2; margin-top: 8px; justify-self: start; }
.app-card .badge-link img { height: 44px; }
.sources { margin-top: 2.6em; padding-top: 1.4em; border-top: 1px solid var(--line); font-size: .9rem; color: var(--ink-3); }
.sources h2 { font-size: 1rem; margin: 0 0 .6em; color: var(--ink-2); }
.sources ul { padding-left: 1.1em; }
.sources li { color: var(--ink-3); }
.related { margin-top: 2.2em; }
.related h2 { font-size: 1.1rem; margin-bottom: .4em; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); padding: 36px 0 48px; color: var(--ink-3); font-size: .88rem; }
.site-footer .wrap { display: grid; gap: 14px; }
.site-footer nav { display: flex; gap: 20px; flex-wrap: wrap; }
.site-footer a { color: var(--ink-2); text-decoration: none; }
.site-footer a:hover { color: var(--accent); }
.site-footer p { margin: 0; max-width: 60em; }

/* Chinese typesetting: a touch more leading, no negative tracking on CJK headlines. */
:lang(zh) body, body:lang(zh) { line-height: 1.75; }
:lang(zh) h1, :lang(zh) h2, :lang(zh) h3 { letter-spacing: 0; }
:lang(zh) h1 { line-height: 1.15; }
:lang(zh) h2 { line-height: 1.25; }

/* ---------- Video story (2026-09-30 rewrite) ---------- */
/* Hero: a play button on the kept side, a download spinner on the optimized side. */
.reveal .play, .reveal .wait {
  position: absolute; top: 50%; z-index: 2; pointer-events: none;
  width: 64px; height: 64px; margin: -32px 0 0 -32px; border-radius: 50%;
  display: grid; place-items: center;
}
.reveal .play { left: calc(var(--pos) / 2); background: rgba(255, 255, 255, .92); color: #0D1B2E; box-shadow: 0 8px 24px rgba(8, 16, 28, .3); }
.reveal .play svg { width: 26px; height: 26px; margin-left: 4px; }
.reveal .wait { left: calc(var(--pos) + (100% - var(--pos)) / 2); background: rgba(8, 16, 28, .45); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); }
.reveal .wait svg { width: 36px; height: 36px; color: #fff; animation: spin 1.1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .reveal .wait svg { animation: none; } }
@media (max-width: 520px) { .reveal .play, .reveal .wait { width: 48px; height: 48px; margin: -24px 0 0 -24px; } .reveal .play svg { width: 20px; height: 20px; } .reveal .wait svg { width: 26px; height: 26px; } }

/* Story steps: iPhone Storage bars, drawn like Settings › General › iPhone Storage. */
.steps .thumb.storage { background: var(--surface); border: 1px solid var(--line); padding: 22px 20px; display: flex; flex-direction: column; justify-content: center; gap: 14px; }
.storage .st-head { display: flex; justify-content: space-between; gap: 12px; font-size: .88rem; color: var(--ink-3); }
.storage .st-head strong { color: var(--ink); font-weight: 650; }
.storage .bar { display: flex; height: 16px; border-radius: 5px; overflow: hidden; background: var(--surface-2); gap: 2px; }
.storage .seg { display: block; height: 100%; }
.storage .seg.photos { background: var(--accent); }
.storage .seg.apps { background: var(--ink-3); }
.storage .seg.sys { background: color-mix(in srgb, var(--ink-3) 45%, var(--surface-2)); }
.storage .legend { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: .8rem; color: var(--ink-2); }
.storage .legend li { display: flex; align-items: center; gap: 6px; }
.storage .legend i { width: 10px; height: 10px; border-radius: 3px; display: inline-block; }
.storage .legend i.photos { background: var(--accent); }
.storage .legend i.apps { background: var(--ink-3); }
.storage .legend i.sys { background: color-mix(in srgb, var(--ink-3) 45%, var(--surface-2)); }
.storage .big { font: 700 1.9rem/1 var(--font-display); letter-spacing: -0.02em; color: var(--ink); font-variant-numeric: tabular-nums; }
.storage .big small { font-size: .95rem; font-weight: 600; color: var(--ink-3); margin-left: 6px; letter-spacing: 0; }
.steps .thumb .center-wait { position: absolute; left: 50%; top: 50%; width: 56px; height: 56px; margin: -28px 0 0 -28px; border-radius: 50%; background: rgba(8, 16, 28, .45); display: grid; place-items: center; }
.steps .thumb .center-wait svg { width: 30px; height: 30px; color: #fff; animation: spin 1.1s linear infinite; }
@media (prefers-reduced-motion: reduce) { .steps .thumb .center-wait svg { animation: none; } }
.error-quote { margin: 1.2em 0; padding: 18px 20px; border-radius: var(--radius-md); background: var(--surface); border: 1px solid var(--line); text-align: center; }
.error-quote strong { display: block; font-size: 1.05rem; }
.error-quote span { display: block; color: var(--ink-2); font-size: .95rem; margin-top: 4px; }

@media (max-width: 560px) { .reveal .tag .more { display: none; } }