/* 版式：首屏整屏就是那张可以拖的画布，文字压在一层纸色的晕上；往下每一区都是一块能动手的画布或真机录屏。
   色彩跟新图标走：纯中性黑白，页面上唯一的颜色是照片本身。标题两级，普通字灰、强调字黑。深色跟随系统。 */
:root {
  --bg: #f6f6f5;
  --bg-2: #ffffff;
  --ink: #0a0a0a;
  --muted: #666666;
  --faint: #949494;
  --line: #e3e3e1;
  --accent: #0a0a0a;
  --accent-ink: #ffffff;
  --accent-soft: #e6e6e4;
  --canvas: #f4f4f3;
  --head-soft: #808080;
  --tile-shadow: 0 10px 26px -10px rgb(0 0 0 / 0.34);
  --glass: rgb(255 255 255 / 0.62);
  --glass-line: rgb(255 255 255 / 0.8);
  --shadow: 0 1px 2px rgb(0 0 0 / 0.05), 0 14px 34px -10px rgb(0 0 0 / 0.18), 0 44px 90px -30px rgb(0 0 0 / 0.18);
  --radius: 28px;
  --sans: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'PingFang SC', 'Hiragino Sans GB', 'Noto Sans SC', 'Microsoft YaHei', system-ui, sans-serif;
  --mono: ui-monospace, 'SF Mono', Menlo, monospace;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --max: 1160px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a0a0a;
    --bg-2: #161616;
    --ink: #f5f5f5;
    --muted: #a3a3a3;
    --faint: #6b6b6b;
    --line: #262626;
    --accent: #f5f5f5;
    --accent-ink: #0a0a0a;
    --accent-soft: #202020;
    --canvas: #0a0a0a;
    --head-soft: #8c8c8c;
    --tile-shadow: 0 10px 26px -10px rgb(0 0 0 / 0.7);
    --glass: rgb(38 38 38 / 0.58);
    --glass-line: rgb(255 255 255 / 0.14);
    --shadow: 0 0 0 1px rgb(255 255 255 / 0.06), 0 30px 70px -24px rgb(0 0 0 / 0.75);
    color-scheme: dark;
  }
}

/* ───────── base ───────── */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 17px/1.65 var(--sans);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg, video { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; }
button { font: inherit; color: inherit; }
::selection { background: var(--accent-soft); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
[hidden] { display: none !important; }
html[data-lang='zh'] .en, html[data-lang='en'] .zh { display: none !important; }
html.focus-open { overscroll-behavior: none; }

h1, h2, h3 { margin: 0; letter-spacing: -0.02em; line-height: 1.12; font-weight: 800; text-wrap: balance; }
h1:has(em), h2:has(em) { color: var(--head-soft); }
h1 em, h2 em { font-style: normal; color: var(--ink); }
html[data-lang='zh'] h1, html[data-lang='zh'] h2 { letter-spacing: 0; }
p { margin: 0; }
h2 { font-size: clamp(34px, 5vw, 56px); }

.eyebrow { font-size: 13px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin-bottom: 14px; }
html[data-lang='zh'] .eyebrow { letter-spacing: 0.12em; }
.sub { color: var(--muted); font-size: 18px; margin-top: 18px; max-width: 36em; }
.fine { font-size: 13px; color: var(--muted); margin-top: 16px; }

.glass {
  background: var(--glass);
  -webkit-backdrop-filter: saturate(1.7) blur(22px);
  backdrop-filter: saturate(1.7) blur(22px);
  box-shadow: inset 0 0 0 1px var(--glass-line), 0 12px 36px -12px rgb(0 0 0 / 0.28);
}

/* ───────── buttons ───────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 48px; padding: 0 22px;
  border-radius: 99px; border: 0;
  font-weight: 600; font-size: 16px; text-decoration: none; cursor: pointer;
  transition: transform 0.2s var(--ease), background-color 0.2s, filter 0.2s;
}
.btn:active { transform: scale(0.97); }
.btn-sm { height: 36px; padding: 0 16px; font-size: 14px; }
.btn-lg { height: 56px; padding: 0 26px; font-size: 17px; }
.btn-accent { background: var(--accent); color: var(--accent-ink); }
.btn-accent:hover { background: color-mix(in srgb, var(--accent) 84%, var(--bg)); }
.btn-ghost { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 1px var(--line); }
.btn-ghost:hover { background: var(--bg-2); }
.store-badge {
  display: inline-flex; align-items: center; gap: 10px;
  height: 56px; padding: 0 22px 0 18px;
  border-radius: 14px; background: #000; color: #fff; text-decoration: none;
  transition: transform 0.2s var(--ease);
}
@media (prefers-color-scheme: dark) { .store-badge { background: #fff; color: #000; } }
.store-badge svg { width: 26px; height: 26px; }
.store-badge .badge-text { display: flex; flex-direction: column; line-height: 1.1; }
.store-badge small { font-size: 11px; opacity: 0.85; }
.store-badge strong { font-size: 21px; font-weight: 600; letter-spacing: -0.01em; }
.store-badge[aria-disabled='true'] { cursor: default; opacity: 0.86; }
.store-badge:not([aria-disabled='true']):active { transform: scale(0.97); }

/* ───────── nav ───────── */
.nav {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; gap: 24px;
  height: 64px; padding: 0 max(20px, calc((100vw - var(--max)) / 2));
  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 transparent;
  transition: border-color 0.3s;
}
.nav.scrolled { border-bottom-color: var(--line); }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; text-decoration: none; white-space: nowrap; }
.brand img { border-radius: 8px; box-shadow: 0 0 0 1px var(--line); }
.nav-links { display: flex; gap: 26px; margin-left: 12px; }
.nav-links a { text-decoration: none; font-size: 14px; color: var(--muted); transition: color 0.2s; white-space: nowrap; }
.nav-links a:hover { color: var(--ink); }
.nav-end { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.lang { height: 36px; min-width: 52px; padding: 0 12px; border-radius: 99px; border: 0; background: transparent; box-shadow: inset 0 0 0 1px var(--line); font-size: 13px; font-weight: 600; cursor: pointer; }
.lang:hover { background: var(--bg-2); }

/* ───────── 画布引擎 ───────── */
.wander { position: relative; overflow: hidden; background: var(--canvas); contain: strict; user-select: none; -webkit-user-select: none; }
.tile {
  position: absolute; left: 0; top: 0;
  overflow: hidden;
  background: color-mix(in srgb, var(--ink) 8%, transparent);
  box-shadow: var(--tile-shadow);
  will-change: transform;
  transform-origin: center;
}
.tile img { width: 100%; height: 100%; object-fit: cover; pointer-events: none; }

/* ───────── hero ───────── */
main { overflow: clip; }
.hero { position: relative; height: calc(100svh - 64px); min-height: 620px; overflow: hidden; }
.hero-canvas { position: absolute; inset: 0; cursor: grab; touch-action: pan-y; }
.hero-canvas.grabbing { cursor: grabbing; }
.hero-canvas:focus-visible { outline-offset: -4px; border-radius: 0; }
.hero-veil {
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(66% 84% at 8% 92%, color-mix(in srgb, var(--bg) 97%, transparent) 0 52%, transparent 100%),
    linear-gradient(to bottom, color-mix(in srgb, var(--bg) 70%, transparent), transparent 12%);
}
.hero-copy {
  position: absolute; z-index: 2;
  left: max(20px, calc((100vw - var(--max)) / 2));
  bottom: clamp(32px, 7vh, 72px);
  width: min(760px, calc(100vw - 40px));
  pointer-events: none;
}
.hero-copy a { pointer-events: auto; }
.hero h1 { font-size: clamp(40px, 5.4vw, 74px); }
.hero h1 .line { display: block; overflow: hidden; padding-bottom: 0.06em; margin-bottom: -0.06em; }
.hero h1 .line-in { display: inline-block; }
.lede { color: var(--muted); font-size: 19px; margin-top: 20px; max-width: 29em; }
.cta-row { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 26px; }
.hero-tools {
  position: absolute; z-index: 3;
  right: max(20px, calc((100vw - var(--max)) / 2));
  bottom: clamp(32px, 7vh, 72px);
  display: flex; align-items: center; gap: 6px;
  padding: 6px 6px 6px 18px; border-radius: 99px;
}
.hero-hint { font-size: 13px; color: var(--muted); margin-right: 8px; white-space: nowrap; }
.tool { width: 42px; height: 42px; display: grid; place-items: center; border: 0; border-radius: 50%; background: transparent; cursor: pointer; transition: background-color 0.2s, transform 0.2s var(--ease); }
.tool svg { width: 22px; height: 22px; }
.tool:hover { background: color-mix(in srgb, var(--ink) 9%, transparent); }
.tool:active { transform: scale(0.92); }
.tool[aria-pressed='true'] { background: var(--accent); color: var(--accent-ink); }

/* ───────── 自动漫游 ───────── */
.band { padding-top: 120px; }
.band-head { padding: 0 20px; }
.band-stage { position: relative; height: clamp(380px, 56vh, 620px); }
.band-stage .wander { position: absolute; inset: 0; }
.band-stage::before, .band-stage::after {
  content: ''; position: absolute; left: 0; right: 0; height: 70px; z-index: 1; pointer-events: none;
}
.band-stage::before { top: 0; background: linear-gradient(var(--bg), transparent); }
.band-stage::after { bottom: 0; background: linear-gradient(transparent, var(--bg)); }
.speed {
  position: absolute; z-index: 2; left: 50%; bottom: 36px; translate: -50% 0;
  width: min(560px, calc(100vw - 40px));
  display: flex; align-items: center; gap: 12px;
  padding: 12px 18px; border-radius: 99px;
}
.speed-ico { flex: none; width: 28px; height: 20px; }
.speed-val { flex: none; width: 3.2em; text-align: right; font-size: 15px; font-weight: 600; font-variant-numeric: tabular-nums; }
#speed { flex: 1; min-width: 0; height: 28px; margin: 0; background: transparent; appearance: none; -webkit-appearance: none; cursor: pointer; }
#speed::-webkit-slider-runnable-track { height: 6px; border-radius: 3px; background: linear-gradient(to right, var(--accent) var(--p, 26%), color-mix(in srgb, var(--ink) 18%, transparent) var(--p, 26%)); }
#speed::-moz-range-track { height: 6px; border-radius: 3px; background: color-mix(in srgb, var(--ink) 18%, transparent); }
#speed::-moz-range-progress { height: 6px; border-radius: 3px; background: var(--accent); }
#speed::-webkit-slider-thumb { -webkit-appearance: none; width: 34px; height: 24px; margin-top: -9px; border-radius: 12px; background: #fff; box-shadow: 0 1px 4px rgb(0 0 0 / 0.3), 0 0 0 0.5px rgb(0 0 0 / 0.08); }
#speed::-moz-range-thumb { width: 34px; height: 24px; border: 0; border-radius: 12px; background: #fff; box-shadow: 0 1px 4px rgb(0 0 0 / 0.3); }
.band-note { text-align: center; color: var(--muted); font-size: 14px; margin-top: 12px; padding: 0 20px; }

/* ───────── layout ───────── */
.section { max-width: var(--max); margin: 0 auto; padding: 120px 20px 0; }
.section-head { max-width: 760px; margin-bottom: 56px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head.center .sub { margin-left: auto; margin-right: auto; }
.split { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 72px; align-items: center; }

/* 点一张试试 */
.try-label { font-size: 14px; font-weight: 600; margin-top: 32px; }
.try-strip { display: flex; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
.try {
  width: clamp(84px, 11vw, 112px); aspect-ratio: 16 / 10; padding: 0; border: 0;
  border-radius: 12px; overflow: hidden; cursor: pointer;
  background: var(--line);
  box-shadow: var(--tile-shadow);
  transition: transform 0.25s var(--ease);
}
.try:hover { transform: translateY(-3px) rotate(-1deg); }
.try:active { transform: scale(0.95); }
.try img { width: 100%; height: 100%; object-fit: cover; }
.ticks { list-style: none; margin: 30px 0 0; padding: 0; display: grid; gap: 10px; color: var(--muted); font-size: 16px; }
.ticks li { padding-left: 22px; position: relative; }
.ticks li::before { content: ''; position: absolute; left: 2px; top: 0.62em; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }

/* 手机框：录屏本身没有灵动岛，由这里画一个 */
.phone { --pw: clamp(240px, 24vw, 300px); margin: 0; width: var(--pw); justify-self: center; }
.phone-screen {
  position: relative; aspect-ratio: 1320 / 2868; overflow: hidden;
  border-radius: calc(var(--pw) * 0.145);
  background: #000;
  box-shadow: 0 0 0 calc(var(--pw) * 0.022) #111, 0 0 0 calc(var(--pw) * 0.028) #555555, var(--shadow);
}
.phone-screen video { width: 100%; height: 100%; object-fit: cover; }
.phone-island { position: absolute; left: 50%; top: 1.3%; width: 31%; height: 3%; translate: -50% 0; border-radius: 99px; background: #000; }
.phone figcaption { text-align: center; font-size: 13px; color: var(--muted); margin-top: 22px; }

/* ───────── 叠卡 ───────── */
.ribbon-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 56px; align-items: center; }
.ribbon-stage {
  position: relative; height: clamp(520px, 72vh, 680px);
  border-radius: var(--radius); overflow: hidden;
  background: #0a0a0a; color: #f5f5f5;
  --ink: #f5f5f5; --line: rgb(255 255 255 / 0.2); --bg-2: rgb(255 255 255 / 0.1);
  --glass: rgb(70 70 70 / 0.5); --glass-line: rgb(255 255 255 / 0.3);
  cursor: grab; touch-action: pan-y; user-select: none; -webkit-user-select: none;
}
.ribbon-stage:active { cursor: grabbing; }
.card { position: absolute; left: 0; top: 0; border-radius: 12px; overflow: hidden; background: #222; box-shadow: 0 12px 30px -8px rgb(0 0 0 / 0.75); will-change: transform; transform-origin: center; }
.card img { width: 100%; height: 100%; object-fit: cover; pointer-events: none; }
.handle {
  position: absolute; left: -22px; top: -22px; z-index: 300;
  width: 44px; height: 44px; border: 0; border-radius: 50%; cursor: grab; touch-action: none;
}
.handle::after { content: ''; position: absolute; inset: 15px; border-radius: 50%; background: #fff; }
.ribbon-tip { position: absolute; z-index: 310; left: 18px; right: 90px; bottom: 16px; font-size: 13px; color: rgb(255 255 255 / 0.66); pointer-events: none; }
.ribbon-reset { position: absolute; z-index: 310; right: 14px; bottom: 12px; }

/* ───────── 画布设置 ───────── */
.settings-stage { position: relative; height: clamp(440px, 62vh, 600px); border-radius: var(--radius); overflow: hidden; box-shadow: 0 0 0 1px var(--line); }
.settings-stage .wander { position: absolute; inset: 0; }
.settings-stage[data-canvas='light'] .wander { background: #f4f4f3; --tile-shadow: 0 10px 26px -10px rgb(0 0 0 / 0.34); }
.settings-stage[data-canvas='dark'] .wander { background: #0a0a0a; --tile-shadow: 0 10px 26px -10px rgb(0 0 0 / 0.7); }
.settings { position: absolute; z-index: 2; right: 18px; top: 18px; width: min(280px, calc(100% - 36px)); padding: 16px 18px; border-radius: 22px; background: color-mix(in srgb, var(--bg-2) 86%, transparent); }
.settings-title { font-size: 13px; font-weight: 600; color: var(--muted); margin-bottom: 6px; }
.settings label { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 40px; font-size: 15px; cursor: pointer; }
.settings input { appearance: none; -webkit-appearance: none; flex: none; position: relative; width: 44px; height: 26px; margin: 0; border-radius: 13px; background: color-mix(in srgb, var(--ink) 20%, transparent); cursor: pointer; transition: background-color 0.2s; }
.settings input::after { content: ''; position: absolute; left: 2px; top: 2px; width: 22px; height: 22px; border-radius: 50%; background: #fff; box-shadow: 0 1px 3px rgb(0 0 0 / 0.3); transition: transform 0.25s var(--ease); }
.settings input:checked { background: var(--accent); }
.settings input:checked::after { transform: translateX(18px); background: var(--accent-ink); }
.settings input:focus-visible { border-radius: 13px; }

/* ───────── privacy ───────── */
.privacy-inner { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 56px; padding: 64px; border-radius: 40px; background: var(--bg-2); box-shadow: 0 0 0 1px var(--line); align-items: start; }
.privacy-inner .section-head { margin-bottom: 0; }
.privacy-inner h2 { font-size: clamp(30px, 4vw, 46px); }
.privacy-list { margin: 0; display: grid; gap: 24px; }
.privacy-list dt { font-weight: 700; font-size: 17px; }
.privacy-list dd { margin: 4px 0 0; color: var(--muted); font-size: 16px; }

/* ───────── faq ───────── */
.faq { max-width: 860px; }
.faq-list details { border-top: 1px solid var(--line); }
.faq-list details:last-child { border-bottom: 1px solid var(--line); }
.faq-list summary { list-style: none; cursor: pointer; padding: 22px 40px 22px 0; font-size: 18px; font-weight: 600; position: relative; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: ''; position: absolute; right: 6px; top: 50%; width: 10px; height: 10px; margin-top: -8px; border-right: 2px solid var(--muted); border-bottom: 2px solid var(--muted); transform: rotate(45deg); transition: transform 0.25s var(--ease); }
.faq-list details[open] summary::after { transform: rotate(-135deg); margin-top: -3px; }
.faq-list details p { color: var(--muted); padding: 0 40px 24px 0; }
.faq-list a { text-underline-offset: 3px; }

/* ───────── final + footer ───────── */
.final { text-align: center; padding: 140px 20px 120px; display: flex; flex-direction: column; align-items: center; gap: 28px; }
.final img { border-radius: 22px; box-shadow: var(--shadow); }
.final .cta-row { justify-content: center; margin-top: 0; }
.footer { border-top: 1px solid var(--line); }
.footer-inner { max-width: var(--max); margin: 0 auto; padding: 28px 20px 40px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; font-size: 14px; color: var(--muted); }
.footer nav { display: flex; flex-wrap: wrap; gap: 20px; }
.footer a { text-decoration: none; }
.footer a:hover { color: var(--ink); }

/* ───────── 点开 ───────── */
.focus { position: fixed; inset: 0; z-index: 40; overflow: hidden; touch-action: none; cursor: zoom-out; }
.focus-blur {
  position: absolute; inset: 0; opacity: 0;
  background: color-mix(in srgb, var(--bg) 22%, transparent);
  -webkit-backdrop-filter: blur(22px) saturate(1.2);
  backdrop-filter: blur(22px) saturate(1.2);
}
.focus-ink { position: absolute; inset: 0; width: 100%; height: 100%; }
.focus-amb { position: absolute; inset: 0; opacity: 0; overflow: hidden; }
.focus-amb img { position: absolute; left: 50%; top: 50%; width: 160vmax; height: 160vmax; max-width: none; margin: -80vmax 0 0 -80vmax; object-fit: cover; filter: blur(64px) saturate(1.7) brightness(0.98); }
.focus-amb .b { opacity: 0.65; width: 128vmax; height: 128vmax; margin: -64vmax 0 0 -64vmax; left: 65%; top: 38%; }
.focus-amb.live .a { animation: spin 42s linear infinite; }
.focus-amb.live .b { animation: spinr 58s linear infinite, breathe 7s ease-in-out infinite alternate; }
@keyframes spin { to { rotate: 360deg; } }
@keyframes spinr { to { rotate: -360deg; } }
@keyframes breathe { from { scale: 1; } to { scale: 1.22; } }
.focus-amb .wash { position: absolute; inset: 0; background: #fff; opacity: 0; }
.focus-photo { position: absolute; left: 0; top: 0; max-width: none; object-fit: cover; transform-origin: center; will-change: transform; user-select: none; -webkit-user-drag: none; pointer-events: none; }
.focus-btn { opacity: var(--ui, 1); position: absolute; z-index: 2; width: 48px; height: 48px; display: grid; place-items: center; border: 0; border-radius: 50%; cursor: pointer; color: var(--ink); }
.focus-btn svg { width: 22px; height: 22px; }
.focus-close { right: max(20px, env(safe-area-inset-right)); top: max(20px, env(safe-area-inset-top)); }
.focus-prev { left: 24px; top: 50%; translate: 0 -50%; }
.focus-next { right: 24px; top: 50%; translate: 0 -50%; }

/* ───────── 依次入场 / 歌词点亮 / 分区导航 / 右下角 ───────── */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.9s var(--ease), transform 0.9s var(--ease); transition-delay: calc(var(--d, 0) * 80ms); }
.reveal.in { opacity: 1; transform: none; }
.lyric .w { opacity: 0.22; transition: opacity 0.35s ease; }
.lyric .w.lit, .lyric.all-lit .w { opacity: 1; }
.spy { position: fixed; left: 28px; top: 50%; z-index: 20; translate: 0 -50%; display: none; flex-direction: column; gap: 10px; opacity: 0; pointer-events: none; transition: opacity 0.4s; }
.spy.show { opacity: 1; pointer-events: auto; }
.spy a { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--faint); text-decoration: none; transition: color 0.2s; }
.spy a:hover { color: var(--muted); }
.spy i { width: 5px; height: 5px; border-radius: 50%; background: currentColor; opacity: 0.6; transition: transform 0.25s var(--ease), background-color 0.2s; }
.spy a.on { color: var(--ink); font-weight: 600; }
.spy a.on i { opacity: 1; transform: scale(1.5); background: var(--accent); }
@media (min-width: 1380px) { .spy { display: flex; } }
.dock {
  position: fixed; right: 24px; bottom: 24px; z-index: 20;
  width: 76px; height: 76px; padding: 0; border: 0; border-radius: 22px; background: transparent; cursor: pointer;
  opacity: 0; transform: translateY(14px) scale(0.92); pointer-events: none;
  transition: opacity 0.35s, transform 0.35s var(--ease);
}
.dock.show { opacity: 1; transform: none; pointer-events: auto; }
.dock:hover { transform: translateY(-3px) scale(1.04); }
.dock:active { transform: scale(0.96); }
.dock-canvas { display: block; width: 100%; height: 100%; border-radius: inherit; box-shadow: 0 0 0 1px var(--line), var(--shadow); }
.dock-tip { position: absolute; right: calc(100% + 10px); top: 50%; translate: 0 -50%; padding: 4px 10px; border-radius: 8px; background: var(--ink); color: var(--bg); font-size: 12px; white-space: nowrap; opacity: 0; transition: opacity 0.2s; pointer-events: none; }
.dock:hover .dock-tip { opacity: 1; }

/* ───────── responsive ───────── */
@media (max-width: 900px) {
  body { font-size: 16px; }
  .nav { gap: 12px; }
  .nav-links { display: none; }
  .hero-veil { background: linear-gradient(to top, color-mix(in srgb, var(--bg) 96%, transparent) 0 44%, transparent 76%), linear-gradient(to bottom, color-mix(in srgb, var(--bg) 70%, transparent), transparent 10%); }
  .hero-tools { top: 14px; bottom: auto; right: 14px; padding-left: 14px; }
  .hero-copy { bottom: 28px; }
  .lede { font-size: 17px; margin-top: 14px; }
  .cta-row { margin-top: 20px; }
  .band { padding-top: 88px; }
  .section { padding-top: 88px; }
  .section-head { margin-bottom: 40px; }
  .split, .ribbon-row { grid-template-columns: minmax(0, 1fr); gap: 48px; }
  .phone { --pw: min(68vw, 280px); }
  .privacy-inner { grid-template-columns: minmax(0, 1fr); padding: 44px 24px; border-radius: 28px; gap: 36px; }
  .faq-list summary { font-size: 17px; }
  .sub { font-size: 17px; }
  .focus-prev, .focus-next { display: none; }
  .settings { left: 12px; right: 12px; top: auto; bottom: 12px; width: auto; padding: 10px 14px; }
  .settings label { min-height: 36px; font-size: 14px; }
  .settings-stage { height: 560px; }
  .ribbon-tip { font-size: 12px; }
}
@media (max-width: 520px) {
  .dock { display: none; }
  .hero-hint { display: none; }
  .hero-tools { padding-left: 6px; }
  .store-badge { height: 48px; padding: 0 16px 0 12px; }
  .store-badge strong { font-size: 18px; }
  .btn-lg { height: 48px; padding: 0 20px; font-size: 16px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .focus-amb.live img { animation: none !important; }
}