/* VoiceHotkey — quiet product page, palette from Cursor marketing (cursor.com) */

/* The hidden attribute must always win: without this, class rules like
   `.btn { display: flex }` override the UA's [hidden] rule and "hidden"
   elements (e.g. the un-wired checkout button) stay visible. */
[hidden] { display: none !important; }

:root {
  /* —— vh design tokens (审美改造 · 60-30-10) —— */
  --vh-paper: #ffffff;
  --vh-paper-warm: #fff8f1;
  --vh-ink: #1b1c20;
  --vh-ink-2: #54565e;
  --vh-ink-3: #8a8c95;
  --vh-brand: #ff6b0d;
  --vh-brand-2: #ff8c14;
  --vh-amber: #ffc72e;
  --vh-line: rgba(27, 28, 32, 0.08);
  --vh-line-strong: rgba(27, 28, 32, 0.12);
  --vh-shadow-card: 0 1px 2px rgba(0, 0, 0, 0.06), 0 8px 24px rgba(0, 0, 0, 0.06);
  --vh-shadow-hero: 0 2px 6px rgba(0, 0, 0, 0.08), 0 24px 48px rgba(0, 0, 0, 0.1);
  --vh-r-btn: 10px;
  --vh-r-card: 16px;
  --vh-r-hero: 20px;
  --vh-max-w: 1120px;
  --vh-gutter: 24px;

  /* Surfaces — Cursor --color-theme-bg / card-* */
  --bg: var(--vh-paper);
  --bg-elevated: var(--vh-paper-warm);
  --bg-soft: color-mix(in oklab, var(--vh-paper-warm) 50%, var(--vh-paper));
  --bg-section: color-mix(in oklab, var(--vh-amber) 6%, var(--vh-paper));
  /* Text */
  --ink: var(--vh-ink);
  --ink-2: var(--vh-ink-2);
  --muted: var(--vh-ink-3);
  --faint: color-mix(in oklab, var(--vh-ink) 40%, transparent);
  --line: var(--vh-line);
  --line-strong: var(--vh-line-strong);
  /* Brand accent — repointed to --vh-brand (亮橙，仅 CTA / 链接 hover / 选中态) */
  --accent: var(--vh-brand);
  --accent-2: var(--vh-brand-2);
  --accent-hover: var(--vh-brand-2);
  --accent-soft: color-mix(in oklab, var(--vh-brand) 10%, transparent);
  --plan-highlight-border: color-mix(in oklab, var(--vh-brand) 28%, transparent);
  --plan-highlight-bg: color-mix(in oklab, var(--vh-brand) 6%, var(--vh-paper-warm));
  /* Status — 仅产品截图/状态徽章内部使用 */
  --ok: #1f8a65;
  --ok-soft: color-mix(in oklab, #1f8a65 12%, transparent);
  --danger-soft: color-mix(in oklab, #cf2d56 10%, transparent);
  --danger: #cf2d56;
  --warn-bg: #f3ede6;
  --dot: #e1e0db;
  --hover-fill: color-mix(in oklab, var(--vh-ink) 4.5%, transparent);
  --radius: var(--vh-r-btn);
  --radius-lg: var(--vh-r-card);
  --max: 720px;
  --wide: var(--vh-max-w);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --shadow: var(--vh-shadow-card);
  --shadow-lg: var(--vh-shadow-hero);
  --glow: color-mix(in oklab, var(--vh-brand) 18%, transparent);

  /* Theme/lang controls — Cursor marketing tokens */
  --color-theme-fg: var(--vh-ink);
  --color-theme-fg-02: var(--vh-ink-2);
  --color-theme-card-02-hex: color-mix(in oklab, var(--vh-ink) 6%, var(--vh-paper));
  --color-theme-card-03-hex: color-mix(in oklab, var(--vh-ink) 9%, var(--vh-paper));
  --color-theme-card-04-hex: color-mix(in oklab, var(--vh-ink) 12%, var(--vh-paper));
  --color-theme-text: var(--color-theme-fg);
  --color-theme-text-sec: color-mix(in oklab, var(--color-theme-fg) 60%, transparent);
  --color-theme-fg-10: color-mix(in oklab, var(--color-theme-fg) 10%, transparent);
  --color-theme-border-01: color-mix(in oklab, var(--color-theme-fg) 2.5%, transparent);
  --color-theme-border-01-5: color-mix(in oklab, var(--color-theme-fg) 5%, transparent);
  /* Primary CTA = 亮橙实底 */
  --btn-primary-bg: var(--vh-brand);
  --btn-primary-bg-hover: var(--vh-brand-2);
  --btn-primary-fg: #ffffff;
  color-scheme: light;
}

html[data-theme="dark"] {
  --vh-paper: #14120b;
  --vh-paper-warm: #1b1913;
  --vh-ink: #edecec;
  --vh-ink-2: #d7d6d5;
  --vh-ink-3: #9a9890;
  --vh-brand: #ff6b0d;
  --vh-brand-2: #ff8c14;
  --vh-amber: #ffc72e;
  --vh-line: rgba(237, 236, 236, 0.1);
  --vh-line-strong: rgba(237, 236, 236, 0.2);
  --vh-shadow-card: 0 1px 2px rgba(0, 0, 0, 0.35), 0 16px 40px rgba(0, 0, 0, 0.45);
  --vh-shadow-hero: 0 8px 24px rgba(0, 0, 0, 0.4), 0 32px 64px rgba(0, 0, 0, 0.5);

  --bg: var(--vh-paper);
  --bg-elevated: var(--vh-paper-warm);
  --bg-soft: #1d1b15;
  --bg-section: #201e18;
  --ink: var(--vh-ink);
  --ink-2: var(--vh-ink-2);
  --muted: var(--vh-ink-3);
  --faint: color-mix(in oklab, #edecec 40%, transparent);
  --line: var(--vh-line);
  --line-strong: var(--vh-line-strong);
  --accent: var(--vh-brand);
  --accent-2: var(--vh-brand-2);
  --accent-hover: var(--vh-brand-2);
  --accent-soft: color-mix(in oklab, var(--vh-brand) 14%, transparent);
  --plan-highlight-border: color-mix(in oklab, var(--vh-brand) 36%, transparent);
  --plan-highlight-bg: color-mix(in oklab, var(--vh-brand) 10%, var(--vh-paper-warm));
  --ok: #4ec9a0;
  --ok-soft: color-mix(in oklab, #1f8a65 18%, transparent);
  --danger-soft: color-mix(in oklab, #cf2d56 16%, transparent);
  --danger: #e86a78;
  --warn-bg: #1c1713;
  --dot: #2b2923;
  --hover-fill: color-mix(in oklab, var(--vh-ink) 6%, transparent);
  --shadow: var(--vh-shadow-card);
  --shadow-lg: var(--vh-shadow-hero);
  --glow: color-mix(in oklab, var(--vh-brand) 22%, transparent);

  --color-theme-fg: var(--vh-ink);
  --color-theme-fg-02: var(--vh-ink-2);
  --color-theme-card-02-hex: #201e18;
  --color-theme-card-03-hex: #26241e;
  --color-theme-card-04-hex: #2b2923;
  --color-theme-text: var(--color-theme-fg);
  --color-theme-text-sec: color-mix(in oklab, var(--color-theme-fg) 60%, transparent);
  --color-theme-fg-10: color-mix(in oklab, var(--color-theme-fg) 10%, transparent);
  --color-theme-border-01: color-mix(in oklab, var(--color-theme-fg) 2.5%, transparent);
  --color-theme-border-01-5: color-mix(in oklab, var(--color-theme-fg) 5%, transparent);
  --btn-primary-bg: var(--vh-brand);
  --btn-primary-bg-hover: var(--vh-brand-2);
  --btn-primary-fg: #ffffff;
  color-scheme: dark;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: clip;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background-color 0.18s ease, color 0.18s ease;
  /* Notch / home-indicator safe areas */
  padding-left: env(safe-area-inset-left, 0px);
  padding-right: env(safe-area-inset-right, 0px);
}

body.is-nav-open {
  overflow: hidden;
}

::selection {
  background: color-mix(in oklab, var(--accent) 28%, transparent);
  color: var(--ink);
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 12px;
  z-index: 100;
  padding: 8px 12px;
  border-radius: 8px;
  background: var(--ink);
  color: var(--bg);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  transition: top 0.12s ease;
}

.skip-link:focus {
  top: 12px;
  color: var(--bg);
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.anchor-top {
  position: relative;
  top: 0;
  height: 0;
}

/* Sticky header offset for in-page anchors (+ iOS safe area) */
#how,
#features,
#engines,
#plans,
#faq,
#main {
  scroll-margin-top: calc(72px + env(safe-area-inset-top, 0px));
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

a:hover {
  color: var(--accent-hover);
}

.wrap {
  width: min(var(--wide), calc(100% - 40px));
  margin: 0 auto;
}

.narrow {
  width: min(var(--max), 100%);
  margin: 0 auto;
}