:root {
  color-scheme: light;
  --bg: #f3f5fb;
  --bg-elev: #ffffff;
  --ink: #1c2036;
  --muted: #5c647c;
  --faint: #7d869c;
  --line: #e3e7f1;
  --mint: #d5f6ee;
  --mint-ink: #0e6d5e;
  --button: #232744;
  --button-text: #f7f8fc;
  --button-hover: #32375c;
  --header: rgba(243, 245, 251, 0.86);
  --shadow: 0 24px 60px rgba(28, 32, 54, 0.08);
  --band: #232744;
  --band-text: #f4f6fb;
  --band-muted: #c5cbe0;
  --highlight: #c9f4ea;
  --focus: #1a6f8a;
  --card: #ffffff;
  --soft: #f7f8fc;
  --kicker: #0e6d5e;
  --radius: 22px;
  font-family: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #10131c;
    --bg-elev: #181c28;
    --ink: #f3f5fb;
    --muted: #b7bdd0;
    --faint: #959cb3;
    --line: #2c3348;
    --mint: #1a3f39;
    --mint-ink: #8ee0d0;
    --button: #eef1f8;
    --button-text: #161925;
    --button-hover: #ffffff;
    --header: rgba(16, 19, 28, 0.84);
    --shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
    --band: #1a2033;
    --band-text: #f4f6fb;
    --band-muted: #c5cbe0;
    --highlight: rgba(142, 224, 208, 0.28);
    --focus: #8ad4ef;
    --card: #181c28;
    --soft: #121722;
    --kicker: #8ee0d0;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body {
  margin: 0;
  background:
    radial-gradient(900px 420px at 100% -8%, color-mix(in srgb, var(--mint) 70%, transparent), transparent 60%),
    radial-gradient(700px 380px at -10% 0%, color-mix(in srgb, var(--button) 8%, transparent), transparent 55%),
    var(--bg);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.7;
}
button, input, textarea { font: inherit; color: inherit; }
button { cursor: pointer; background: transparent; border: 0; padding: 0; }
a { color: inherit; text-decoration: none; }
button, a, summary { touch-action: manipulation; }
button:focus-visible, a:focus-visible, summary:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }
img { display: block; max-width: 100%; height: auto; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { line-height: 1.2; letter-spacing: -0.03em; }
::selection { background: var(--highlight); color: var(--ink); }
.svg-defs { position: absolute; width: 0; height: 0; overflow: hidden; }
.i { display: inline-block; width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; vertical-align: -3px; }
html:not([data-locale="en"]) .lang-en { display: none !important; }
html[data-locale="en"] .lang-zh { display: none !important; }

.container { width: min(1120px, calc(100% - 48px)); margin-inline: auto; }
.section { padding-block: 88px; }
.skip-link { position: fixed; top: 12px; left: 16px; z-index: 80; padding: 10px 14px; border-radius: 10px; background: var(--button); color: var(--button-text); transform: translateY(-160%); }
.skip-link:focus { transform: none; }
.muted { color: var(--faint); }
.status-dot { width: 8px; height: 8px; display: inline-block; border-radius: 50%; background: #3cae8f; box-shadow: 0 0 0 4px color-mix(in srgb, #3cae8f 18%, transparent); }
.section-kicker { margin-bottom: 12px; color: var(--kicker); font-size: 13px; font-weight: 700; letter-spacing: 0.14em; }
.section-heading { display: grid; gap: 14px; margin-bottom: 32px; max-width: 720px; }
.section-heading h2, .services-copy h2, .quiet-inner h2, .privacy-heading h2, .closing h2 { font-size: clamp(32px, 4vw, 48px); font-weight: 640; }
.section-intro, .hero-lead, .quiet-lead { color: var(--muted); font-size: 17px; }
.section-heading .text-link { justify-self: start; }

.button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 46px; padding: 10px 16px; border: 1px solid var(--line); border-radius: 12px; background: var(--bg-elev); color: var(--ink); font-size: 15px; font-weight: 650; line-height: 1.2; box-shadow: 0 1px 0 rgba(255, 255, 255, 0.4) inset; }
.button:hover { border-color: color-mix(in srgb, var(--mint-ink) 45%, var(--line)); transform: translateY(-1px); }
.button-primary { border-color: transparent; background: var(--button); color: var(--button-text); }
.button-primary:hover { background: var(--button-hover); }
.button-small { min-height: 38px; padding: 8px 12px; border-radius: 10px; font-size: 14px; }
.text-link { display: inline-flex; align-items: center; gap: 8px; color: var(--mint-ink); font-weight: 700; }
.text-link:hover { gap: 11px; }
kbd { display: inline-flex; align-items: center; min-height: 22px; padding: 0 6px; border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 6px; background: var(--soft); color: var(--muted); font: 12px/1.2 ui-monospace, "SFMono-Regular", Consolas, monospace; }

.site-header { position: sticky; top: 0; z-index: 40; border-bottom: 1px solid color-mix(in srgb, var(--line) 80%, transparent); background: var(--header); backdrop-filter: blur(16px); }
.header-inner { display: flex; align-items: center; gap: 18px; min-height: 72px; }
.brand { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; font-weight: 720; letter-spacing: -0.03em; }
.brand img { width: 36px; height: 36px; border-radius: 10px; }
.brand-lockup { display: flex; flex-direction: column; line-height: 1.05; }
.brand-name { font-size: 16px; }
.brand-cn { color: var(--faint); font-size: 12px; font-weight: 560; letter-spacing: 0.04em; }
.site-nav { display: flex; align-items: center; gap: 4px; }
.site-nav a { padding: 8px 10px; border-radius: 999px; color: var(--muted); font-size: 14px; font-weight: 650; white-space: nowrap; }
.site-nav a:hover, .site-nav a[aria-current="location"] { color: var(--ink); background: color-mix(in srgb, var(--mint) 55%, transparent); }
.header-tools { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.locale-switch { display: inline-flex; padding: 3px; border: 1px solid var(--line); border-radius: 999px; background: var(--bg-elev); }
.locale-switch button { min-height: 32px; padding: 0 10px; border-radius: 999px; color: var(--muted); font-size: 13px; font-weight: 700; }
html[data-locale="zh"] [data-set-locale="zh"],
html[data-locale="en"] [data-set-locale="en"],
.locale-switch button[aria-pressed="true"] { background: var(--button); color: var(--button-text); }

.hero { display: grid; grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr); gap: 40px; align-items: center; padding-top: 48px; padding-bottom: 24px; }
.eyebrow { display: flex; align-items: center; gap: 8px; margin-bottom: 18px; color: var(--muted); font-size: 13px; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; }
.product-mark { display: block; font-size: clamp(52px, 6vw, 76px); font-weight: 680; letter-spacing: -0.055em; line-height: 0.95; }
.product-cn { display: block; margin-top: 8px; color: var(--faint); font-size: 20px; font-weight: 560; letter-spacing: 0.18em; }
.tagline { margin-top: 22px; font-size: clamp(26px, 3vw, 34px); font-weight: 620; letter-spacing: -0.035em; line-height: 1.35; }
.mark { background-image: linear-gradient(transparent 58%, var(--highlight) 58%, var(--highlight) 90%, transparent 90%); }
.hero-lead { margin-top: 16px; max-width: 38rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.hero-points { display: flex; flex-wrap: wrap; gap: 8px; margin: 22px 0 0; padding: 0; list-style: none; }
.hero-points li { padding: 6px 10px; border: 1px solid var(--line); border-radius: 999px; background: color-mix(in srgb, var(--bg-elev) 80%, transparent); color: var(--muted); font-size: 13px; font-weight: 650; }
.hero-platforms { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 18px; color: var(--muted); font-size: 13px; font-weight: 650; }
.hero-platforms span { display: inline-flex; align-items: center; gap: 6px; }

.hero-stage { color-scheme: light; color: #1c2036; padding: 16px 16px 14px; border: 1px solid #e3e7f1; border-radius: 28px; background: linear-gradient(180deg, #ffffff, #f6f8fc); box-shadow: var(--shadow); }
.demo-controls { display: inline-flex; gap: 4px; max-width: 100%; padding: 4px; border-radius: 12px; background: #eef1f6; }
.demo-controls button { display: inline-flex; align-items: center; gap: 6px; min-height: 36px; padding: 0 10px; border-radius: 9px; color: #5c647c; font-size: 13px; font-weight: 700; white-space: nowrap; }
.demo-controls kbd { flex: none; }
.demo-controls button[aria-pressed="true"] { background: #fff; color: #1c2036; box-shadow: 0 1px 4px rgba(28, 32, 54, 0.08); }
.demo-controls kbd { font-size: 11px; }
.demo-progress { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; margin: 14px 0; padding: 0; list-style: none; }
.demo-progress li { display: flex; align-items: center; gap: 6px; color: #7d869c; font-size: 12px; font-weight: 650; }
.step-index { display: inline-flex; align-items: center; justify-content: center; width: 22px; height: 22px; flex: 0 0 22px; border-radius: 50%; background: #eef1f6; font: 11px/1 ui-monospace, Consolas, monospace; }
.demo-progress li[data-state="current"] { color: #0e6d5e; }
.demo-progress li[data-state="current"] .step-index { background: #d5f6ee; color: #0e6d5e; }
.demo-progress li[data-state="complete"] .step-index { background: #1f8f78; color: #fff; }
.step-name { min-width: 0; }
.demo-scene { --reader-width: 92%; --selection-left: 28px; --selection-end: 250px; --selection-y: 196px; --ocr-left: 24px; --ocr-right: calc(var(--reader-width) - 24px); --ocr-top: 198px; --ocr-bottom: 246px; position: relative; height: 380px; }
.reading-window { position: absolute; left: 0; top: 0; width: var(--reader-width); height: 286px; overflow: hidden; border: 1px solid #e3e7f1; border-radius: 16px; background: #fff; box-shadow: 0 10px 30px rgba(28, 32, 54, 0.05); }
.reading-toolbar { display: flex; align-items: center; gap: 10px; height: 36px; padding: 0 12px; border-bottom: 1px solid #eef1f6; color: #7d869c; background: #fbfcfe; font-size: 12px; }
.window-dots { display: flex; gap: 5px; }
.window-dots span { width: 8px; height: 8px; border-radius: 50%; background: #e4b4ad; }
.window-dots span:nth-child(2) { background: #e3d4a8; }
.window-dots span:nth-child(3) { background: #bbd6c3; }
.reading-content { position: relative; padding: 22px 24px 16px; }
.reading-eyebrow { color: #8b93a8; font-size: 11px; font-weight: 700; letter-spacing: 0.14em; }
.reading-content h2 { margin: 8px 0 10px; font-family: Georgia, "Songti SC", "Noto Serif SC", serif; font-size: 26px; font-weight: 500; letter-spacing: -0.03em; line-height: 1.15; }
.reading-paragraph { color: #8b93a8; font-family: Georgia, "Songti SC", serif; font-size: 13px; }
.reading-highlight { display: table; margin-top: 12px; padding: 2px 4px; color: #3d4d63; font-family: Georgia, "Songti SC", serif; font-size: 15px; line-height: 1.5; background-image: linear-gradient(#d3eee2, #d3eee2); background-repeat: no-repeat; background-size: 0% 100%; }
.demo-scene[data-mode="selection"][data-phase="selecting"] .reading-highlight { animation: demo-text-selection 1600ms linear both; }
.demo-scene[data-mode="selection"]:is([data-phase="shortcut"], [data-phase="translating"], [data-phase="complete"]) .reading-highlight { background-size: 100% 100%; color: #1f6d5c; }
.translator-window { position: absolute; right: 0; top: 118px; width: min(78%, 360px); padding: 0 12px 10px; border: 1px solid #d8dee8; border-radius: 16px; background: #fff; box-shadow: 0 18px 40px rgba(28, 32, 54, 0.12); opacity: 0; visibility: hidden; transform: translateY(10px); transition: opacity .28s, transform .28s, visibility .28s; }
.demo-scene:is([data-phase="translating"], [data-phase="complete"]) .translator-window { opacity: 1; visibility: visible; transform: none; }
.demo-scene[data-pinned="true"]:is([data-phase="translating"], [data-phase="complete"]) .translator-window { border-color: #8ec9b8; }
.translator-toolbar { display: flex; align-items: center; gap: 8px; min-height: 42px; }
.translator-brand { display: flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 700; }
.translator-brand img { width: 20px; height: 20px; border-radius: 6px; }
.demo-window-label { margin-left: auto; color: #8b93a8; font-size: 12px; }
.icon-button { display: inline-flex; width: 30px; height: 30px; align-items: center; justify-content: center; border-radius: 8px; color: #5c647c; }
.icon-button:hover { background: #f3f5fb; }
.demo-pin .i { transform: rotate(35deg); }
.demo-pin[aria-pressed="true"] .i { transform: none; }
.translation-source, .translation-result { padding: 8px 10px; border: 1px solid #e6eaf2; border-radius: 10px; background: #fbfcfe; }
.translation-result { margin-top: 8px; }
.translation-label { display: flex; gap: 6px; color: #6c748a; font-size: 11px; font-weight: 700; }
.translation-label > span:last-child { margin-left: auto; color: #98a0b5; font-weight: 600; }
.service-indicator { width: 6px; height: 6px; margin-top: 5px; border-radius: 50%; background: #1f8f78; }
.translation-source p, .translation-result p { min-height: 22px; margin-top: 4px; font-size: 14px; }
.translation-result p { font-size: 16px; font-weight: 650; }
.sample-actions { display: flex; align-items: center; gap: 10px; margin-top: 6px; color: #7d869c; font-size: 12px; }
.sample-actions span { display: inline-flex; align-items: center; gap: 4px; }
.sample-only { margin-left: auto; }
.demo-status { min-height: 18px; margin-top: 8px; color: #6c748a; font-size: 12px; }
.demo-status::before { content: ""; display: inline-block; width: 6px; height: 6px; margin-right: 6px; border-radius: 50%; background: #1f8f78; }
.ocr-selection { display: none; position: absolute; top: 168px; left: 22px; right: 22px; min-height: 42px; padding: 8px; color: #3d4d63; font-family: Georgia, serif; font-size: 15px; }
.ocr-selection i { position: absolute; width: 7px; height: 7px; border: 1px solid #4d86c8; background: #fff; opacity: 0; }
.ocr-selection i:nth-of-type(1) { top: -4px; left: -4px; }
.ocr-selection i:nth-of-type(2) { top: -4px; right: -4px; }
.ocr-selection i:nth-of-type(3) { bottom: -4px; left: -4px; }
.ocr-selection i:nth-of-type(4) { bottom: -4px; right: -4px; }
.demo-scene[data-mode="ocr"] .ocr-selection { display: block; }
.demo-scene[data-mode="ocr"] .reading-highlight { visibility: hidden; }
.ocr-selection::before { content: ""; position: absolute; inset: 0 auto auto 0; width: 100%; height: 100%; border: 1.5px solid #4d86c8; background: rgba(77, 134, 200, 0.08); opacity: 0; }
.demo-scene[data-mode="ocr"][data-phase="selecting"] .ocr-selection::before { opacity: 1; animation: demo-region-selection 2000ms linear both; }
.demo-scene[data-mode="ocr"][data-phase="recognizing"] .ocr-selection::before,
.demo-scene[data-mode="ocr"][data-phase="recognizing"] .ocr-selection i { opacity: 1; }
.demo-cursor { position: absolute; z-index: 5; left: var(--selection-left); top: var(--selection-y); width: 18px; height: 22px; opacity: 0; pointer-events: none; filter: drop-shadow(0 2px 2px rgba(28, 32, 54, 0.25)); }
.demo-cursor svg { width: 18px; height: 22px; fill: #fff; stroke: #243049; stroke-width: 1.2; }
.cursor-drag-label { position: absolute; top: 18px; left: 16px; padding: 2px 6px; border: 1px solid #e3e7f1; border-radius: 6px; background: #fff; color: #5c647c; font-size: 11px; white-space: nowrap; }
.demo-scene:not([data-mode="ocr"]) .label-ocr { display: none !important; }
.demo-scene[data-mode="ocr"] .label-selection { display: none !important; }
.demo-scene[data-mode="selection"][data-phase="selecting"] .demo-cursor { opacity: 1; animation: demo-pointer-select 1600ms linear both; }
.demo-scene[data-mode="ocr"][data-phase="selecting"] .demo-cursor { opacity: 1; animation: demo-pointer-ocr 2000ms linear both; }
.demo-scene[data-mode="ocr"][data-phase="recognizing"] .demo-cursor { left: var(--ocr-right); top: var(--ocr-bottom); opacity: 1; }
.demo-scene[data-phase="recognizing"] .cursor-drag-label { opacity: 0; }
.demo-key-hint { position: absolute; z-index: 4; right: 8px; bottom: 78px; display: flex; align-items: center; gap: 6px; padding: 8px 10px; border: 1px solid #e3e7f1; border-radius: 12px; background: rgba(255, 255, 255, 0.94); color: #5c647c; font-size: 12px; font-weight: 700; opacity: 0; visibility: hidden; }
.demo-key-hint .key-ocr { display: none; }
.demo-scene[data-mode="ocr"] .demo-key-hint .key-selection { display: none; }
.demo-scene[data-mode="ocr"] .demo-key-hint .key-ocr { display: inline-flex; }
.demo-scene[data-phase="shortcut"] .demo-key-hint { opacity: 1; visibility: visible; }
.demo-step-copy { min-height: 72px; }
.demo-step-copy strong { display: block; font-size: 15px; }
.demo-step-copy p { margin-top: 4px; color: #5c647c; font-size: 14px; }
.demo-footer { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-top: 8px; }
.demo-footer p { color: #5c647c; font-size: 13px; }
#demo-replay { display: inline-flex; align-items: center; gap: 8px; min-height: 38px; padding: 0 12px; border-radius: 10px; background: #e7f6f1; color: #0e6d5e; font-size: 14px; font-weight: 750; white-space: nowrap; }
#demo-replay:hover { background: #d7f1e8; }
.demo-disclaimer { margin-top: 8px; color: #6c748a; font-size: 12px; line-height: 1.6; }

.feature-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.feature-card, .platform-card, .steps li, .privacy-grid article { padding: 22px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); box-shadow: 0 1px 0 rgba(255, 255, 255, 0.4) inset; }
.feature-card { display: flex; flex-direction: column; gap: 12px; min-height: 100%; }
.feature-card:hover, .platform-card:hover { border-color: color-mix(in srgb, var(--mint-ink) 40%, var(--line)); }
.feature-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.feature-icon { display: inline-flex; align-items: center; justify-content: center; width: 42px; height: 42px; border-radius: 12px; background: var(--mint); color: var(--mint-ink); }
.feature-pill { padding: 4px 8px; border-radius: 999px; background: var(--soft); color: var(--muted); font-size: 12px; font-weight: 750; }
.feature-card h3, .steps h3, .privacy-grid h3 { font-size: 22px; font-weight: 680; }
.feature-card p, .steps p, .privacy-grid p, .platform-card p { color: var(--muted); font-size: 15px; }
.feature-note { color: var(--faint) !important; font-size: 13px !important; }

.capture-entry { display: inline-flex; align-items: center; gap: 12px; max-width: 100%; margin-top: 20px; padding: 12px 16px; border: 1px solid var(--line); border-radius: 14px; background: var(--card); }
.capture-entry:hover { border-color: var(--mint-ink); }
.capture-entry > kbd { min-height: 36px; padding: 0 10px; background: var(--mint); color: var(--mint-ink); font-size: 17px; }
.capture-entry strong { display: block; font-size: 15px; }
.capture-entry-note { display: block; color: var(--muted); font-size: 13px; }
.capture-entry > .i { flex-shrink: 0; margin-left: 8px; color: var(--mint-ink); }
.capture-section { padding-bottom: 48px; scroll-margin-top: 32px; }
.capture-panel { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; padding: 32px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); }
.capture-copy h2 { font-size: clamp(25px, 3vw, 32px); }
.capture-lead { margin-top: 16px; color: var(--muted); font-size: 15px; }
.capture-distinction { display: flex; flex-wrap: wrap; gap: 10px 18px; margin: 20px 0 12px; font-size: 13px; font-weight: 650; }
.capture-distinction > span { display: inline-flex; align-items: center; gap: 6px; }
.capture-steps { display: grid; gap: 20px; margin: 0; padding: 0; list-style: none; }
.capture-steps li { display: flex; gap: 14px; }
.capture-step-number { flex: 0 0 30px; color: var(--mint-ink); font: 700 13px/1.7 ui-monospace, Consolas, monospace; }
.capture-steps h3 { font-size: 17px; line-height: 1.5; }
.capture-steps p { margin-top: 4px; color: var(--muted); font-size: 14px; }
@media (max-width: 980px) {
  .capture-panel { grid-template-columns: 1fr; gap: 28px; }
  .site-nav a { padding-inline: 7px; }
}
@media (max-width: 760px) {
  .capture-panel { padding: 22px; }
  .header-download { display: none; }
  .site-nav a { padding-inline: 5px; font-size: 13px; }
  .capture-section { padding-bottom: 0; }
  html { scroll-padding-top: 130px; }
}

.services-section { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 36px; align-items: center; padding-top: 20px; }
.check-list { display: grid; gap: 10px; margin: 22px 0 0; padding: 0; list-style: none; }
.check-list li { display: flex; align-items: flex-start; gap: 8px; color: var(--muted); }
.check-list .i { margin-top: 4px; color: var(--mint-ink); }
.service-console { overflow: hidden; border: 1px solid var(--line); border-radius: 24px; background: var(--card); box-shadow: var(--shadow); }
.console-top { display: flex; align-items: center; gap: 8px; min-height: 52px; padding: 12px 16px; border-bottom: 1px solid var(--line); font-weight: 700; }
.console-label { margin-left: auto; color: var(--faint); font-size: 13px; font-weight: 600; }
.service-tabs { display: flex; gap: 6px; margin: 16px 16px 0; padding: 4px; border-radius: 12px; background: var(--soft); }
.service-tabs button { flex: 1; min-height: 36px; border-radius: 9px; color: var(--muted); font-weight: 700; }
.service-tabs button[aria-pressed="true"] { background: var(--card); color: var(--ink); box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06); }
.service-content { padding: 22px 20px 20px; }
.service-symbol { display: flex; align-items: center; gap: 6px; margin-bottom: 8px; color: var(--mint-ink); font-size: 13px; font-weight: 800; letter-spacing: 0.08em; }
.service-content h3 { font-size: 26px; }
.service-content > p { margin-top: 10px; color: var(--muted); }
.service-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.service-tags span, .light-tags span { padding: 4px 8px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: 12px; font-weight: 700; }
.service-footnote { margin-top: 14px; color: var(--faint); font-size: 13px; }

.quiet-band { background: var(--band); color: var(--band-text); }
.quiet-inner { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 36px; align-items: center; padding-block: 72px; }
.quiet-band .section-kicker { color: #9be7d6; }
.quiet-lead { margin-top: 14px; color: var(--band-muted); }
.light-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.quiet-band .light-tags span { border-color: rgba(255, 255, 255, 0.16); color: var(--band-text); }
.quiet-list { display: grid; gap: 14px; margin: 0; padding: 0; list-style: none; }
.quiet-list li { display: flex; gap: 10px; align-items: flex-start; color: var(--band-muted); }
.quiet-list .i { margin-top: 4px; color: #9be7d6; }

.privacy-heading { display: flex; align-items: flex-start; gap: 14px; max-width: 640px; }
.privacy-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 28px 0 18px; }
.privacy-section .text-link { font-size: 15px; }

.download-section { background: color-mix(in srgb, var(--soft) 80%, var(--bg)); border-block: 1px solid var(--line); }
.download-stats { margin-bottom: 24px; padding: 22px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); }
.download-stats-heading { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 20px; }
.download-stats-heading h3 { font-size: 16px; }
.download-stats-heading a { display: inline-flex; align-items: center; gap: 5px; color: var(--mint-ink); font-size: 13px; font-weight: 650; }
.download-stats-heading a:hover { text-decoration: underline; text-underline-offset: 3px; }
.download-stats-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin: 22px 0 16px; }
.download-stats-grid > div + div { padding-left: 20px; border-left: 1px solid var(--line); }
.download-stats-grid dt { color: var(--muted); font-size: 13px; }
.download-stats-grid dd { margin: 4px 0 0; color: var(--mint-ink); font-size: clamp(24px, 4vw, 36px); font-weight: 750; font-variant-numeric: tabular-nums; line-height: 1.25; overflow-wrap: anywhere; }
.download-stats-note, .download-stats-status { color: var(--muted); font-size: 12px; }
.download-stats-status { margin-top: 5px; min-height: 1.7em; }
@media (max-width: 540px) {
  .download-stats { padding: 18px; }
  .download-stats-grid { gap: 10px; }
  .download-stats-grid > div + div { padding-left: 10px; }
}
.platform-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.platform-card { display: flex; flex-direction: column; gap: 10px; }
.platform-card .button { margin-top: auto; }
.platform-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.platform-icon { width: 28px; height: 28px; }
.platform-badge { padding: 4px 8px; border-radius: 999px; background: var(--mint); color: var(--mint-ink); font-size: 12px; font-weight: 750; }
.badge-muted { background: var(--soft); color: var(--muted); }
.platform-card h3 { font-size: 28px; }
.platform-meta { color: var(--ink) !important; font-weight: 700; }
.platform-upcoming { background: transparent; }
.release-note { display: flex; gap: 10px; align-items: flex-start; margin-top: 18px; color: var(--muted); font-size: 14px; }
.release-note a { color: var(--mint-ink); font-weight: 700; text-decoration: underline; text-underline-offset: 3px; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 0 0 28px; padding: 0; list-style: none; }
.steps li > span { color: var(--mint-ink); font: 13px/1 ui-monospace, Consolas, monospace; font-weight: 700; }
.steps h3 { margin: 10px 0; }
.faq details { border-top: 1px solid var(--line); }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 18px 0; cursor: pointer; font-size: 17px; font-weight: 700; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary .plus { color: var(--mint-ink); font-size: 22px; line-height: 1; }
.faq details[open] .plus { transform: rotate(45deg); }
.faq details p { padding: 0 36px 18px 0; color: var(--muted); }
.faq a { color: var(--mint-ink); font-weight: 700; text-decoration: underline; text-underline-offset: 3px; }

.closing { display: flex; align-items: end; justify-content: space-between; gap: 24px; padding-block: 28px 72px; }
.support-note { max-width: 520px; margin-top: 12px; color: var(--muted); }
.site-footer { border-top: 1px solid var(--line); background: color-mix(in srgb, var(--soft) 70%, var(--bg)); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding-block: 22px; }
.footer-inner > p { color: var(--faint); font-size: 13px; text-align: center; }
.footer-inner > p > span { display: block; }
.footer-links { display: flex; flex-wrap: wrap; gap: 14px; color: var(--muted); font-size: 14px; font-weight: 650; }
.footer-links a:hover { color: var(--ink); }

.legal-page { max-width: 760px; padding-top: 56px; }
.legal-page h1 { font-size: clamp(36px, 5vw, 52px); font-weight: 680; }
.legal-meta, .legal-intro, .legal-en { margin-top: 14px; color: var(--muted); }
.legal-en { padding: 14px 16px; border: 1px solid var(--line); border-radius: 14px; background: var(--card); }
.legal-page section { padding-top: 28px; }
.legal-page h2 { margin-bottom: 8px; font-size: 22px; }
.legal-page section p { margin-top: 10px; color: var(--muted); }
.legal-page section a { color: var(--mint-ink); text-decoration: underline; text-underline-offset: 3px; }
.legal-page > .button { margin-top: 32px; }

@keyframes demo-text-selection { from { background-size: 0% 100%; } to { background-size: 100% 100%; } }
@keyframes demo-region-selection { from { width: 0; height: 0; } to { width: 100%; height: 100%; } }
@keyframes demo-pointer-select { from { left: var(--selection-left); top: var(--selection-y); } to { left: var(--selection-end); top: var(--selection-y); } }
@keyframes demo-pointer-ocr { from { left: var(--ocr-left); top: var(--ocr-top); } to { left: var(--ocr-right); top: var(--ocr-bottom); } }

@media (max-width: 980px) {
  .hero, .services-section, .quiet-inner, .privacy-grid, .platform-grid, .steps { grid-template-columns: 1fr; }
  .hero { padding-top: 32px; }
  .hero-stage { max-width: 640px; }
  .closing { align-items: start; flex-direction: column; }
  .platform-card .button { margin-top: 8px; }
}

@media (max-width: 760px) {
  .container { width: min(1120px, calc(100% - 28px)); }
  .section { padding-block: 64px; }
  .header-inner { flex-wrap: wrap; row-gap: 4px; }
  .brand { order: 1; }
  .header-tools { order: 2; }
  .site-nav { order: 3; flex: 1 0 100%; overflow-x: auto; padding-bottom: 8px; }
  .header-download { padding-inline: 10px; }
  .feature-grid { grid-template-columns: 1fr; }
  .product-mark { font-size: 48px; }
  .tagline { font-size: 26px; }
  .demo-scene { height: 400px; --selection-end: 210px; --selection-y: 180px; --ocr-top: 176px; --ocr-bottom: 220px; }
  .demo-controls { display: grid; grid-template-columns: 1fr 1fr; width: 100%; }
  .demo-controls button { justify-content: center; }
  .demo-controls kbd { display: none; }
  .reading-window { height: 250px; }
  .reading-content h2 { font-size: 22px; }
  .translator-window { top: 118px; width: 86%; }
  .demo-progress { gap: 4px; }
  .demo-progress li { font-size: 11px; }
  .demo-footer { align-items: stretch; flex-direction: column; }
  .footer-inner { flex-wrap: wrap; }
  .footer-inner > p { flex-basis: 100%; text-align: left; }
  .brand-cn { display: none; }
  .footer-inner .brand-cn { display: block; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}