/* ============================================================
   Peeko — landing + download
   System Ghost: grayscale, native macOS feel, quiet & precise
   ============================================================ */

:root {
  /* warm neutral light — a touch of life */
  --bg:            oklch(0.987 0.009 78);
  --bg-2:          oklch(0.977 0.012 72);
  --surface:       oklch(0.996 0.006 80);
  --surface-sunk:  oklch(0.968 0.012 75);
  --line:          oklch(0.9 0.013 72);
  --line-soft:     oklch(0.935 0.011 74);
  --line-strong:   oklch(0.84 0.017 68);

  --ink:           oklch(0.275 0.015 58);
  --ink-2:         oklch(0.48 0.015 60);
  --ink-3:         oklch(0.63 0.013 62);
  --ink-4:         oklch(0.73 0.011 64);

  --btn-bg:        oklch(0.26 0.018 56);
  --btn-bg-hover:  oklch(0.34 0.02 54);
  --btn-ink:       oklch(0.99 0.008 82);

  --live:          oklch(0.63 0.15 33);    /* warm coral, used sparingly */
  --accent:        oklch(0.66 0.12 52);    /* warm amber accent */

  /* liquid glass */
  --glass-bg:        color-mix(in oklab, white 55%, transparent);
  --glass-bg-strong: color-mix(in oklab, white 70%, transparent);
  --glass-blur:      saturate(185%) blur(22px);
  --glass-border:    rgba(255,255,255,.72);
  --glass-ring:      inset 0 1px 0 rgba(255,255,255,.92), inset 0 0 0 .5px rgba(255,255,255,.35), inset 0 -12px 24px -16px rgba(120,86,50,.18);

  --shadow-win:    0 1px 2px rgba(60,42,24,.06), 0 14px 34px -8px rgba(60,42,24,.16), 0 44px 84px -32px rgba(60,42,24,.22);
  --shadow-float:  0 1px 1px rgba(50,36,20,.12), 0 8px 16px -2px rgba(50,36,20,.20), 0 24px 46px -14px rgba(50,36,20,.30);
  --shadow-soft:   0 1px 2px rgba(60,42,24,.05), 0 10px 26px -12px rgba(60,42,24,.13);
  --shadow-glass:  0 1px 2px rgba(60,42,24,.07), 0 16px 38px -12px rgba(60,42,24,.22);

  --ring:          0 0 0 .5px rgba(40,30,20,.10);

  --font-ui:   "Hanken Grotesk", -apple-system, BlinkMacSystemFont, "SF Pro Text", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --maxw: 1080px;
  --pad: clamp(20px, 5vw, 48px);

  --r-lg: 22px;
  --r-md: 14px;
  --r-sm: 9px;

  --live-display: inline-block;
}

/* ---- Dim theme ---- */
:root[data-theme="dim"] {
  --bg:            oklch(0.215 0.012 62);
  --bg-2:          oklch(0.195 0.012 60);
  --surface:       oklch(0.265 0.013 64);
  --surface-sunk:  oklch(0.235 0.012 62);
  --line:          oklch(0.34 0.012 64);
  --line-soft:     oklch(0.30 0.011 62);
  --line-strong:   oklch(0.42 0.013 66);

  --ink:           oklch(0.97 0.008 84);
  --ink-2:         oklch(0.77 0.011 70);
  --ink-3:         oklch(0.61 0.011 66);
  --ink-4:         oklch(0.53 0.01 64);

  --btn-bg:        oklch(0.97 0.008 84);
  --btn-bg-hover:  oklch(0.90 0.01 80);
  --btn-ink:       oklch(0.22 0.014 58);

  --live:          oklch(0.68 0.16 34);
  --accent:        oklch(0.72 0.12 56);

  --glass-bg:        color-mix(in oklab, white 12%, transparent);
  --glass-bg-strong: color-mix(in oklab, white 18%, transparent);
  --glass-border:    rgba(255,255,255,.16);
  --glass-ring:      inset 0 1px 0 rgba(255,255,255,.18), inset 0 0 0 .5px rgba(255,255,255,.06);

  --shadow-win:    0 1px 2px rgba(0,0,0,.4), 0 16px 40px -10px rgba(0,0,0,.55), 0 48px 90px -36px rgba(0,0,0,.6);
  --shadow-float:  0 2px 6px rgba(0,0,0,.45), 0 14px 34px -8px rgba(0,0,0,.6);
  --shadow-soft:   0 1px 2px rgba(0,0,0,.3), 0 10px 30px -14px rgba(0,0,0,.5);
  --shadow-glass:  0 2px 6px rgba(0,0,0,.4), 0 18px 40px -12px rgba(0,0,0,.55);
  --ring:          0 0 0 .5px rgba(255,255,255,.10);
}

:root[data-live="off"] { --live-display: none; }

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font-ui);
  background:
    radial-gradient(46% 40% at 9% 1%, oklch(0.945 0.05 74 / .6), transparent 70%),
    radial-gradient(44% 40% at 94% -2%, oklch(0.935 0.05 36 / .5), transparent 70%),
    radial-gradient(52% 48% at 88% 98%, oklch(0.935 0.042 98 / .48), transparent 72%),
    radial-gradient(48% 46% at 4% 96%, oklch(0.93 0.04 58 / .42), transparent 72%),
    var(--bg);
  background-attachment: fixed;
  color: var(--ink);
  line-height: 1.55;
  font-weight: 400;
  letter-spacing: -0.005em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* faint film grain texture */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: .035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
:root[data-theme="dim"] body::after { opacity: .055; }
:root[data-theme="dim"] body {
  background:
    radial-gradient(48% 42% at 8% 0%, oklch(0.42 0.06 66 / .5), transparent 70%),
    radial-gradient(46% 42% at 95% -2%, oklch(0.4 0.06 34 / .42), transparent 70%),
    radial-gradient(54% 50% at 88% 98%, oklch(0.4 0.05 94 / .4), transparent 72%),
    var(--bg);
  background-attachment: fixed;
}
:root[data-texture="clean"] body::after { display: none; }

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* ============================================================
   BOOT SPLASH
   ============================================================ */
.boot {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: grid;
  place-items: center;
  background: var(--bg);
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transition: opacity .42s ease, visibility 0s linear .42s;
}

.boot[data-done="true"] {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.boot__stream {
  position: relative;
  width: 128px;
  height: 44px;
  color: var(--ink);
}

.boot__pixel {
  position: absolute;
  left: 8px;
  top: 50%;
  display: block;
  background: currentColor;
  opacity: 0;
  transform: translate3d(0, -50%, 0) scale(.92);
  animation: bootStream 1.45s linear infinite;
  will-change: transform, opacity;
}

.boot__pixel--1 {
  width: 18px;
  height: 18px;
  border-radius: 5px;
  animation-delay: 0s;
}

.boot__pixel--2 {
  width: 13px;
  height: 13px;
  border-radius: 4px;
  animation-delay: -.29s;
}

.boot__pixel--3 {
  width: 11px;
  height: 11px;
  border-radius: 3px;
  animation-delay: -.58s;
}

.boot__pixel--4 {
  width: 8px;
  height: 8px;
  border-radius: 2.5px;
  animation-delay: -.87s;
}

.boot__pixel--5 {
  width: 6px;
  height: 6px;
  border-radius: 2px;
  animation-delay: -1.16s;
}

@keyframes bootStream {
  0% {
    opacity: 0;
    transform: translate3d(0, -50%, 0) scale(.92);
  }
  12% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translate3d(94px, -50%, 0) scale(.58);
  }
}

@media (prefers-reduced-motion: reduce) {
  .boot__pixel {
    animation: none;
    opacity: .38;
  }
}

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding-inline: var(--pad);
}

/* type helpers */
.mono {
  font-family: var(--font-mono);
  font-weight: 400;
  letter-spacing: 0;
}
.eyebrow {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin: 0;
}

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 12px var(--pad) 0;
  background: transparent;
}
.nav__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 10px 12px 10px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-radius: 17px;
  background: var(--glass-bg-strong);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-ring), var(--shadow-soft);
  transition: box-shadow .3s ease;
}
.nav[data-stuck="true"] .nav__inner {
  box-shadow: var(--glass-ring), var(--shadow-glass);
}
.brand {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  letter-spacing: -0.01em;
  font-size: 18.5px;
  font-family: 'Comfortaa', var(--font-ui);
}
.brand__word { font-family: 'Comfortaa', var(--font-ui); }
.brand__mark {
  display: grid; place-items: center;
  flex: none;
}
.nav__links {
  display: flex;
  align-items: center;
  gap: 26px;
  font-size: 14px;
  color: var(--ink-2);
}
.nav__links a { transition: color .18s ease; white-space: nowrap; }
.nav__links a:hover { color: var(--ink); }
.nav__links .only-wide { }
.nav__cta {
  font-size: 13.5px;
  font-weight: 500;
  padding: 7px 14px;
  border-radius: 999px;
  background: var(--btn-bg);
  color: var(--btn-ink);
  border: 1px solid transparent;
  transition: background .18s ease, transform .18s ease;
}
.nav__cta:hover { background: var(--btn-bg-hover); }
.nav__cta:active { transform: translateY(1px); }

@media (max-width: 640px) {
  .nav__links .hide-sm { display: none; }
}

@media (max-width: 640px) {
  .hero__sub {
    width: auto !important;
    max-width: min(100%, 24ch) !important;
    text-wrap: balance;
  }
  .sec-title,
  .sec-lede {
    white-space: normal !important;
    text-wrap: balance;
  }
  .btn {
    max-width: 100%;
    justify-content: center;
    text-align: center;
  }
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: 15px;
  letter-spacing: -0.01em;
  padding: 13px 22px;
  border-radius: 12px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background .18s ease, transform .15s ease, box-shadow .2s ease, border-color .18s ease;
  white-space: nowrap;
}
.btn--primary {
  background: linear-gradient(var(--btn-bg), color-mix(in oklab, var(--btn-bg) 86%, black));
  color: var(--btn-ink);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.16), var(--shadow-glass);
}
.btn--primary:hover { background: linear-gradient(var(--btn-bg-hover), var(--btn-bg)); transform: translateY(-1px); }
.btn--primary:active { transform: translateY(0); }
.btn--ghost {
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  color: var(--ink);
  border-color: var(--glass-border);
  box-shadow: var(--glass-ring);
}
.btn--ghost:hover { border-color: var(--ink-4); transform: translateY(-1px); }
.btn__apple { width: 16px; height: 18px; flex: none; opacity: .9; }
.btn--lg { font-size: 16px; padding: 15px 26px; }

.platform-note {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: .01em;
}
.platform-note b { color: var(--ink-2); font-weight: 500; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  padding-top: clamp(54px, 9vw, 104px);
  padding-bottom: clamp(40px, 6vw, 72px);
  text-align: center;
}
.hero__h1 {
  font-size: clamp(54px, 11vw, 132px);
  line-height: .92;
  font-weight: 700;
  letter-spacing: -0.03em;
  font-family: 'Comfortaa', var(--font-ui);
  margin: 18px 0 0;
}
.hero__sub {
  font-size: clamp(19px, 2.5vw, 25px);
  font-weight: 400;
  line-height: 1.3;
  letter-spacing: -0.018em;
  color: var(--ink);
  max-width: 24ch;
  margin: 34px auto 0;
}
.hero__support {
  font-size: clamp(15px, 1.7vw, 17px);
  color: var(--ink-2);
  max-width: 54ch;
  margin: 16px auto 0;
  line-height: 1.5;
}
.hero__cta {
  margin-top: 30px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

/* ============================================================
   HERO LAYOUT VARIANTS — toggled via [data-hero] (Tweaks › Layout)
   default / "centered" = the base .hero rules above
   ============================================================ */

/* LEFT — editorial, left-aligned stack */
:root[data-hero="left"] .hero { text-align: left; }
:root[data-hero="left"] .hero__sub { margin-left: 0; margin-right: 0; }
:root[data-hero="left"] .hero__support { margin-left: 0; margin-right: 0; }
:root[data-hero="left"] .hero__cta { align-items: flex-start; }

/* COMPACT — condensed rhythm, smaller wordmark */
:root[data-hero="compact"] .hero { padding-top: clamp(40px, 6vw, 76px); }
:root[data-hero="compact"] .hero__h1 { font-size: clamp(46px, 8.5vw, 104px); margin-top: 10px; }
:root[data-hero="compact"] .hero__sub { font-size: clamp(17px, 2.1vw, 22px); margin-top: 12px; }
:root[data-hero="compact"] .hero__support { margin-top: 9px; font-size: clamp(14px, 1.6vw, 16px); max-width: 42ch; }
:root[data-hero="compact"] .hero__cta { margin-top: 22px; }

/* EDITORIAL — dramatic scale + generous air */
:root[data-hero="editorial"] .eyebrow { font-size: 12px; letter-spacing: .3em; color: var(--ink-4); }
:root[data-hero="editorial"] .hero__h1 { font-size: clamp(64px, 13.5vw, 168px); letter-spacing: -0.045em; margin-top: 22px; }
:root[data-hero="editorial"] .hero__sub { font-size: clamp(22px, 3vw, 31px); margin-top: 40px; }
:root[data-hero="editorial"] .hero__support { font-size: clamp(14px, 1.6vw, 16px); color: var(--ink-3); max-width: 56ch; margin-top: 18px; }
:root[data-hero="editorial"] .hero__cta { margin-top: 38px; }

/* ============================================================
   DESKTOP SCENE (hi-fi macOS mock)
   ============================================================ */
.scene-wrap {
  margin-top: clamp(40px, 6vw, 72px);
  perspective: 1800px;
}
.scene {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
  aspect-ratio: 16 / 10.4;
  border-radius: var(--r-lg);
  overflow: hidden;
  background:
    radial-gradient(120% 120% at 70% 4%, oklch(0.95 0.03 78) 0%, oklch(0.9 0.045 56) 44%, oklch(0.83 0.05 42) 100%);
  box-shadow: var(--shadow-win);
  border: 1px solid var(--line-strong);
}
:root[data-theme="dim"] .scene {
  background:
    radial-gradient(120% 120% at 70% 2%, oklch(0.36 0.04 64) 0%, oklch(0.28 0.04 50) 45%, oklch(0.2 0.035 44) 100%);
  border-color: oklch(0.36 0.02 60);
}

/* menu bar */
.scene__bar {
  position: absolute;
  inset: 0 0 auto 0;
  height: 30px;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 0 14px;
  background: color-mix(in oklab, white 36%, transparent);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border-bottom: .5px solid rgba(255,255,255,.35);
  font-size: 12.5px;
  font-weight: 500;
  color: oklch(0.28 0.01 265);
  z-index: 4;
}
:root[data-theme="dim"] .scene__bar {
  background: color-mix(in oklab, black 30%, transparent);
  color: oklch(0.92 0.006 255);
  border-bottom-color: rgba(255,255,255,.08);
}
.scene__menus { display: flex; align-items: center; gap: 17px; }
.scene__menus .app { font-weight: 700; }
.scene__menus .dim { font-weight: 400; opacity: .72; }
@media (max-width: 720px){ .scene__menus .dim { display:none; } }
.scene__status { margin-left: auto; display: flex; align-items: center; gap: 13px; opacity: .85; }
.scene__status svg { display:block; }
.scene__peekoglyph {
  display: flex; align-items: center; gap: 5px;
  padding: 1px 6px; border-radius: 6px;
  background: color-mix(in oklab, currentColor 9%, transparent);
}
.scene__clock { font-variant-numeric: tabular-nums; font-weight: 500; }

/* work window */
.workwin {
  position: absolute;
  left: 7%;
  top: 13%;
  width: 70%;
  height: 78%;
  background: var(--surface);
  border-radius: 12px;
  box-shadow: 0 1px 2px rgba(10,12,18,.10), 0 18px 44px -16px rgba(10,12,18,.34);
  border: .5px solid var(--line);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  z-index: 2;
}
.workwin__bar {
  height: 38px;
  flex: none;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 14px;
  border-bottom: 1px solid var(--line-soft);
  background: var(--surface-sunk);
}
.lights { display: flex; gap: 7px; }
.lights i { width: 11px; height: 11px; border-radius: 50%; display:block; }
.lights i:nth-child(1){ background: #f0625a; }
.lights i:nth-child(2){ background: #f5bd4f; }
.lights i:nth-child(3){ background: #61c554; }
:root[data-theme="dim"] .lights i { filter: brightness(.92); }
.workwin__title {
  font-size: 12.5px;
  color: var(--ink-3);
  font-weight: 500;
  margin-left: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.workwin__body { flex: 1; display: flex; min-height: 0; }
.workwin__side {
  width: 28%;
  border-right: 1px solid var(--line-soft);
  padding: 14px 12px;
  display: flex;
  flex-direction: column;
  gap: 11px;
  background: var(--surface-sunk);
}
.side-item { display: flex; align-items: center; gap: 8px; }
.side-dot { width: 12px; height: 12px; border-radius: 4px; background: var(--line-strong); flex:none; }
.side-bar { height: 7px; border-radius: 4px; background: var(--line); }
.workwin__main { flex: 1; padding: 22px 24px; display: flex; flex-direction: column; gap: 13px; overflow: hidden; }
.tx { height: 9px; border-radius: 4px; background: var(--line); }
.tx.h { height: 15px; width: 56%; background: var(--line-strong); margin-bottom: 6px; }
.tx.w95 { width: 95%; } .tx.w88 { width: 88%; } .tx.w72 { width: 72%; }
.tx.w80 { width: 80%; } .tx.w64 { width: 64%; } .tx.w40 { width: 40%; }

/* floating Peeko window */
.peeko-win {
  position: absolute;
  right: 4.5%;
  bottom: 6%;
  width: 31%;
  aspect-ratio: 16 / 10;
  border-radius: 11px;
  overflow: hidden;
  box-shadow: var(--shadow-float);
  z-index: 6;
  background: #0c0d11;
  border: .5px solid rgba(255,255,255,.14);
  outline: 1px solid rgba(10,12,18,.18);
  transition: opacity .14s ease, transform .35s cubic-bezier(.2,.7,.2,1), filter .14s ease;
}
.peeko-win image-slot,
.peeko-win .slot { position: absolute; inset: 0; width: 100%; height: 100%; }
.peeko-win__chip {
  position: absolute;
  top: 8px; left: 8px;
  display: var(--live-display);
  align-items: center;
  gap: 5px;
  padding: 3px 7px 3px 6px;
  border-radius: 6px;
  background: rgba(8,9,12,.5);
  backdrop-filter: blur(6px);
  font-family: var(--font-mono);
  font-size: 9.5px;
  font-weight: 500;
  letter-spacing: .08em;
  color: rgba(255,255,255,.92);
  z-index: 3;
}
.peeko-win__chip::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--live);
  box-shadow: 0 0 0 0 color-mix(in oklab, var(--live) 70%, transparent);
}
[data-motion="on"] .peeko-win__chip::before { animation: livepulse 2.4s ease-out infinite; }
@keyframes livepulse {
  0% { box-shadow: 0 0 0 0 color-mix(in oklab, var(--live) 60%, transparent); }
  70%,100% { box-shadow: 0 0 0 6px transparent; }
}
.peeko-win__hud {
  position: absolute;
  inset: auto 0 0 0;
  padding: 14px 9px 8px;
  display: flex;
  align-items: center;
  gap: 9px;
  background: linear-gradient(to top, rgba(6,7,10,.6), transparent);
  opacity: 0;
  transition: opacity .2s ease;
  z-index: 3;
}
.scene:hover .peeko-win__hud { opacity: 1; }
.peeko-win__hud i { width: 13px; height: 13px; color: rgba(255,255,255,.9); }
.peeko-win__pin {
  position: absolute; top: 7px; right: 8px;
  width: 12px; height: 12px; z-index: 3;
  color: rgba(255,255,255,.6);
}

/* image-slot empty state restyle (scene video) */
image-slot { --is-bg: #101218; }

/* scene caption */
.scene-cap {
  text-align: center;
  margin-top: 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: .01em;
}

/* ============================================================
   SECTION SCAFFOLD
   ============================================================ */
section { position: relative; }
.band { padding: clamp(64px, 10vw, 128px) 0; }
.band--alt {
  /* 交替蒙版：参考版的薄玻璃板，靠上下内阴影显出 section 厚度 */
  background: color-mix(in oklab, var(--surface) 70%, transparent);
  -webkit-backdrop-filter: saturate(150%) blur(8px);
  backdrop-filter: saturate(150%) blur(8px);
  border-block: 1px solid var(--line);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.7),
    inset 0 26px 44px -30px rgba(40,56,96,.12),
    inset 0 -26px 44px -30px rgba(40,56,96,.12);
}
:root[data-theme="dim"] .band--alt {
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.08),
    inset 0 26px 44px -30px rgba(0,0,0,.4),
    inset 0 -26px 44px -30px rgba(0,0,0,.4);
}
.sec-head { max-width: 30ch; }
.sec-head--center { margin-inline: auto; text-align: center; max-width: 40rem; }
.sec-title {
  font-size: clamp(28px, 4.2vw, 44px);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.04;
  margin: 14px 0 0;
}
.sec-lede {
  font-size: clamp(16px, 1.9vw, 18px);
  color: var(--ink-2);
  margin: 16px 0 0;
  line-height: 1.5;
}

/* ============================================================
   FEATURE STRIP
   ============================================================ */
.features {
  margin-top: clamp(40px, 6vw, 64px);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.feature {
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-md);
  box-shadow: var(--glass-ring), var(--shadow-soft);
  padding: 26px 22px 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 196px;
  transition: transform .28s cubic-bezier(.2,.7,.2,1), box-shadow .28s ease;
}
.feature:hover {
  transform: translateY(-4px);
  box-shadow: var(--glass-ring), var(--shadow-glass);
}
.feature__icon { width: 26px; height: 26px; color: var(--ink); }
.feature__title { font-size: 17px; font-weight: 600; letter-spacing: -0.02em; margin: 0; }
.feature__desc { font-size: 14px; color: var(--ink-2); margin: 0; line-height: 1.5; }
.feature__n { margin-top: auto; font-family: var(--font-mono); font-size: 11px; color: var(--ink-4); letter-spacing: .1em; }
@media (max-width: 860px){ .features { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px){ .features { grid-template-columns: 1fr; } }

/* ============================================================
   WORKFLOW
   ============================================================ */
.flow {
  margin-top: clamp(40px, 6vw, 64px);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.step {
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-md);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  box-shadow: var(--glass-ring), var(--shadow-soft);
  transition: transform .28s cubic-bezier(.2,.7,.2,1), box-shadow .28s ease;
}
.step:hover { transform: translateY(-4px); box-shadow: var(--glass-ring), var(--shadow-glass); }
.step__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: .06em;
}
.step__art {
  border-radius: var(--r-sm);
  border: 1px solid var(--line-soft);
  background: var(--surface-sunk);
  aspect-ratio: 5 / 3;
  overflow: hidden;
  position: relative;
}
.step__cap { }
.step__cap h4 { font-size: 16px; font-weight: 600; letter-spacing: -0.02em; margin: 0 0 5px; }
.step__cap p { font-size: 14px; color: var(--ink-2); margin: 0; line-height: 1.45; }
@media (max-width: 760px){ .flow { grid-template-columns: 1fr; max-width: 460px; margin-inline:auto; } }

/* mini-mock artwork inside steps (CSS, monochrome) */
.mm { position: absolute; inset: 0; padding: 12px; display: flex; flex-direction: column; gap: 7px; }
.mm__bar { display:flex; gap:5px; align-items:center; }
.mm__bar i { width:7px; height:7px; border-radius:50%; background: var(--line-strong); }
.mm__bar i:nth-child(1){ background:#f0625a; } .mm__bar i:nth-child(2){ background:#f5bd4f; } .mm__bar i:nth-child(3){ background:#61c554; }
.mm__row { height: 7px; border-radius: 4px; background: var(--line); }
.mm__grid { flex:1; display:grid; grid-template-columns: 1fr 1fr; gap:6px; }
.mm__cell { background: var(--line-soft); border-radius: 5px; }
.mm__cell.dark { background: oklch(0.22 0.006 270); }
.mm__float {
  position:absolute; right:14px; bottom:14px;
  width: 46%; aspect-ratio: 16/10; border-radius: 6px;
  background: oklch(0.16 0.006 270);
  box-shadow: 0 4px 12px -3px rgba(10,12,18,.4);
  border: .5px solid rgba(255,255,255,.12);
  display:grid; place-items:center;
}
.mm__play { width:0;height:0;border-style:solid;border-width:6px 0 6px 10px;border-color:transparent transparent transparent rgba(255,255,255,.7); }
.mm__scan { position:absolute; inset:0; }
.mm__scan span { position:absolute; left:8%; right:8%; height:1.5px; background: color-mix(in oklab, var(--live) 80%, transparent); top:50%; border-radius:2px; box-shadow:0 0 8px var(--live); }

/* ============================================================
   BOSS KEY band
   ============================================================ */
.boss {
  text-align: center;
  padding: clamp(80px, 12vw, 150px) 0;
  background:
    radial-gradient(80% 120% at 50% 0%, color-mix(in oklab, var(--surface-sunk) 52%, transparent), transparent 72%);
  border-block: 1px solid var(--line-soft);
}
.boss__kbd { margin-bottom: 30px; display:flex; justify-content:center; }
.boss__title {
  font-size: clamp(40px, 8vw, 92px);
  font-weight: 600;
  letter-spacing: -0.045em;
  line-height: .94;
  margin: 0;
}
.boss__sub { color: var(--ink-2); font-size: clamp(15px,1.8vw,18px); margin: 20px auto 0; max-width: 40ch; line-height:1.5; }
.boss__demo {
  margin: 44px auto 0;
  width: min(360px, 78vw);
  aspect-ratio: 16/9;
  border-radius: var(--r-md);
  position: relative;
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-ring), var(--shadow-glass);
  overflow: hidden;
  cursor: pointer;
}
.boss__win {
  position: absolute;
  right: 14px; bottom: 14px;
  width: 42%; aspect-ratio: 16/10;
  border-radius: 8px;
  background: oklch(0.14 0.006 270);
  border: .5px solid rgba(255,255,255,.14);
  box-shadow: var(--shadow-float);
  display: grid; place-items: center;
  transition: opacity .12s ease, transform .12s ease, filter .12s ease;
}
.boss__win .mm__play { border-left-color: rgba(255,255,255,.6); }
.boss__demo:hover .boss__win { opacity: 0; transform: scale(.96); filter: blur(2px); }
.boss__hint {
  position: absolute; left: 14px; top: 14px;
  font-family: var(--font-mono); font-size: 11px; color: var(--ink-3);
  letter-spacing: .02em;
}
.boss__hint b { color: var(--ink); font-weight: 500; }

/* ============================================================
   SHORTCUTS
   ============================================================ */
.keys {
  margin-top: clamp(40px, 6vw, 60px);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--glass-ring), var(--shadow-glass);
}
.key-row {
  display: grid;
  grid-template-columns: 1.1fr 1.6fr auto;
  align-items: center;
  gap: 24px;
  padding: 18px 24px;
  border-bottom: 1px solid var(--line-soft);
  transition: background .16s ease;
}
.key-row:last-child { border-bottom: none; }
.key-row:hover { background: var(--glass-bg-strong); }
.key-row__name { font-size: 15.5px; font-weight: 600; letter-spacing: -0.015em; }
.key-row__desc { font-size: 14px; color: var(--ink-2); }
.key-combo { display: flex; align-items: center; gap: 6px; justify-self: end; }
.key-combo .plus { color: var(--ink-4); font-size: 12px; }
.kbd {
  min-width: 30px;
  height: 30px;
  padding: 0 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  border-radius: 7px;
  background: linear-gradient(rgba(255,255,255,.82), rgba(255,255,255,.5));
  -webkit-backdrop-filter: blur(8px) saturate(160%);
  backdrop-filter: blur(8px) saturate(160%);
  border: 1px solid var(--glass-border);
  border-bottom: 1.5px solid color-mix(in oklab, var(--line-strong) 70%, transparent);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.95), inset 0 -3px 4px -2px rgba(120,86,50,.14), 0 1px 2px rgba(80,58,34,.14);
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: 0;
}
:root[data-theme="dim"] .kbd {
  background: linear-gradient(rgba(255,255,255,.16), rgba(255,255,255,.05));
  box-shadow: inset 0 1px 0 rgba(255,255,255,.22), 0 1px 2px rgba(0,0,0,.35);
  border-color: rgba(255,255,255,.18);
}
.kbd--set {
  background: repeating-linear-gradient(135deg, var(--surface) 0 5px, var(--surface-sunk) 5px 10px);
  border-style: dashed;
  border-bottom-width: 1px;
  color: var(--ink-3);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: .04em;
}
.keys-note {
  margin-top: 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-3);
  text-align: center;
}
@media (max-width: 680px){
  .key-row { grid-template-columns: 1fr auto; gap: 6px 16px; }
  .key-row__desc { grid-column: 1 / -1; }
}

/* ============================================================
   FINAL CTA
   ============================================================ */
.final {
  text-align: center;
  padding: clamp(80px, 12vw, 150px) 0;
}
.final__title {
  font-size: clamp(32px, 6vw, 64px);
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 1.0;
  margin: 0 auto;
  max-width: 16ch;
}
.final__cta { margin-top: 34px; display: flex; flex-direction: column; align-items: center; gap: 13px; }
.final__meta { display: flex; gap: 18px; flex-wrap: wrap; justify-content: center; margin-top: 8px; }
.meta-pill {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ink-2);
  display: flex; align-items: center; gap: 8px;
  padding: 8px 15px;
  border-radius: 999px;
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-ring);
}
.meta-pill::before { content:""; width:5px; height:5px; border-radius:50%; background: var(--accent); }

/* ============================================================
   FOOTER
   ============================================================ */
.foot {
  border-top: 1px solid var(--line);
  padding: 18px 0 22px;
}
.foot__inner { display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap; }
.foot__brand { display:flex; align-items:center; gap:6px; font-weight:600; font-size:17.5px; font-family: 'Comfortaa', var(--font-ui); letter-spacing:-0.01em; }
.foot__meta { font-family: var(--font-mono); font-size: 12px; color: var(--ink-3); }
.foot__links { display:flex; gap:20px; font-size:13px; color: var(--ink-2); }
.foot__links a:hover { color: var(--ink); }

/* ============================================================
   MOTION / reveal
   ============================================================ */
/* Content is VISIBLE by default. The entrance is a pure enhancement applied
   only when .is-in is added, so a failed/blocked reveal can never trap content
   invisible. */
.reveal { opacity: 1; transform: none; }
[data-motion="on"] .reveal.anim {
  animation: revealIn .7s cubic-bezier(.2, .7, .2, 1) both;
}
@keyframes revealIn {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: none; }
}

/* if the document timeline is frozen (paused/captured iframe), disable the
   entrance entirely so content shows in its resting visible state */
:root.no-motion-fallback .reveal {
  animation: none !important;
  opacity: 1 !important;
  transform: none !important;
}

@media (prefers-reduced-motion: reduce) {
  [data-motion="on"] .reveal.anim { animation: none; }
  .peeko-win__chip::before { animation: none !important; }
}

/* ============================================================
   FEATURES (restructured) — picture / sound / clicks, separated
   ============================================================ */
.feat-lede {
  font-size: clamp(17px, 2vw, 21px);
  color: var(--ink-2);
  max-width: 62ch;
  margin: 16px 0 0;
  line-height: 1.45;
}
.feat-lede b { color: var(--ink); font-weight: 600; }

.feat-grid {
  margin-top: clamp(36px, 5vw, 54px);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.glass-card {
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-md);
  box-shadow: var(--glass-ring), var(--shadow-soft);
  transition: transform .28s cubic-bezier(.2,.7,.2,1), box-shadow .28s ease;
}
.feat-card { padding: 24px; display: flex; flex-direction: column; gap: 13px; }
.feat-card:not(.feat-focal):hover { transform: translateY(-4px); box-shadow: var(--glass-ring), var(--shadow-glass); }
.feat-card h3 { font-size: 18px; font-weight: 600; letter-spacing: -0.02em; margin: 0; }
.feat-card p { font-size: 14px; color: var(--ink-2); margin: 0; line-height: 1.5; }
.feat-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; }

/* focal: hold to peek (full width) */
.feat-focal {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  padding: 0;
  overflow: hidden;
}
.peek-stage {
  position: relative;
  min-height: 280px;
  overflow: hidden;
  display: block;
  background:
    radial-gradient(120% 130% at 72% 0%, oklch(0.955 0.022 240) 0%, oklch(0.9 0.04 252) 52%, oklch(0.82 0.052 268) 100%);
}

/* simulated ordinary desktop, shown while "released" */
.peek-desk { position: absolute; inset: 0; }
.peek-bar {
  position: absolute; top: 0; left: 0; right: 0; height: 26px;
  display: flex; align-items: center; gap: 14px; padding: 0 13px;
  background: rgba(255,255,255,.46);
  -webkit-backdrop-filter: blur(14px) saturate(160%); backdrop-filter: blur(14px) saturate(160%);
  border-bottom: .5px solid rgba(255,255,255,.5);
  font-family: var(--font-ui); font-size: 11px; color: rgba(28,38,60,.82);
  z-index: 1;
}
.peek-bar .pb-apple { width: 11px; height: 12px; opacity: .8; flex: none; }
.peek-bar .pb-strong { font-weight: 600; }
.peek-bar .pb-dim { color: rgba(28,38,60,.5); }
.peek-bar .pb-clock { margin-left: auto; font-family: var(--font-mono); font-size: 10px; color: rgba(28,38,60,.62); }
.peek-app {
  position: absolute; left: 50%; top: 54%; transform: translate(-50%,-50%);
  width: 64%;
  background: #fff;
  border-radius: 11px;
  border: .5px solid rgba(255,255,255,.85);
  box-shadow: 0 1px 2px rgba(28,38,60,.06), 0 26px 52px -22px rgba(28,38,60,.42);
  overflow: hidden;
}
.peek-app__bar { display: flex; align-items: center; gap: 6px; height: 28px; padding: 0 12px; border-bottom: 1px solid oklch(0.93 0.005 250); background: oklch(0.985 0.003 250); }
.peek-app__dot { width: 9px; height: 9px; border-radius: 50%; flex: none; }
.peek-app__title { margin-left: 6px; font-size: 11px; color: var(--ink-3); font-weight: 500; }
.peek-app__body { padding: 16px 16px 19px; display: flex; flex-direction: column; gap: 9px; }
.peek-app__line { height: 8px; border-radius: 4px; background: oklch(0.91 0.008 250); }
.peek-app__line:first-child { background: oklch(0.84 0.012 250); }
.peek-window {
  position: absolute; right: 16px; bottom: 16px; z-index: 3;
  width: 34%;
  aspect-ratio: 16/10;
  border-radius: 9px;
  overflow: hidden;
  background: #0c0d11;
  border: .5px solid rgba(255,255,255,.55);
  box-shadow: 0 12px 30px -10px rgba(12,16,26,.5), 0 2px 6px rgba(12,16,26,.3);
  opacity: 0;
  transform: translateY(10px) scale(.9);
  transform-origin: bottom right;
  transition: opacity .3s ease, transform .4s cubic-bezier(.2,.8,.2,1);
}
.feat-focal:hover .peek-window { opacity: 1; transform: none; }
.peek-window image-slot { position: absolute; inset: 0; width: 100%; height: 100%; }
.pw-live {
  position: absolute; top: 7px; left: 7px; z-index: 2;
  font-family: var(--font-mono); font-size: 9px; letter-spacing: .08em;
  color: #fff; background: rgba(8,9,12,.5); border-radius: 5px; padding: 2px 6px;
  display: flex; align-items: center; gap: 4px;
}
.pw-live::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--live); }
.peek-prompt {
  position: absolute; left: 14px; bottom: 14px; z-index: 4;
  display: flex; align-items: center; gap: 7px;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .02em;
  color: rgba(28,38,60,.66);
  padding: 5px 10px 5px 7px; border-radius: 999px;
  background: rgba(255,255,255,.62);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  border: .5px solid rgba(255,255,255,.7);
  box-shadow: 0 4px 12px -4px rgba(28,38,60,.2);
  transition: opacity .25s ease;
}
.feat-focal:hover .peek-prompt { opacity: 0; }
.peek-meta { display: flex; flex-direction: column; justify-content: center; gap: 12px; padding: 30px 34px; }
.feat-kbd { display: flex; align-items: center; gap: 5px; }

/* state chips */
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 3px; }
.chip {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 5px 11px 5px 9px; border-radius: 999px;
  font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .01em;
  border: 1px solid var(--line);
  background: color-mix(in oklab, var(--surface) 55%, transparent);
  color: var(--ink-2);
}
.chip__dot { width: 8px; height: 8px; border-radius: 50%; flex: none; }
.chip.on .chip__dot { background: var(--accent); box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent) 22%, transparent); }
.chip.off { color: var(--ink-3); }
.chip.off .chip__dot { background: transparent; border: 1.5px solid var(--line-strong); }

.boss-badge {
  display: inline-flex; align-items: center;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--ink-2);
  padding: 4px 9px; border-radius: 7px;
  border: 1px solid color-mix(in oklab, var(--accent) 45%, var(--line-strong));
  background: color-mix(in oklab, var(--accent) 9%, transparent);
}

/* click-through mini illustration */
.ct-vis { position: relative; height: 78px; border-radius: 10px; background: var(--surface-sunk); border: 1px solid var(--line-soft); overflow: hidden; margin-top: 3px; }
.ct-vis .ct-pane { position: absolute; right: 16px; top: 14px; width: 70px; height: 42px; border-radius: 8px; background: var(--glass-bg-strong); border: 1px solid var(--glass-border); -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur); box-shadow: var(--glass-ring); }
.ct-vis .ct-target { position: absolute; left: 16px; bottom: 12px; font-family: var(--font-mono); font-size: 10px; color: var(--ink-3); }
.ct-vis .ct-cursor { position: absolute; right: 42px; top: 30px; color: var(--ink); width: 15px; height: 15px; }

@media (max-width: 760px) {
  .feat-grid { grid-template-columns: 1fr; }
  .feat-focal { grid-template-columns: 1fr; }
  .peek-stage { min-height: 220px; }
}

/* mini-mock keys overlay (How It Works, step 3) */
.mm__keys { position: absolute; left: 50%; bottom: 14px; transform: translateX(-50%); display: flex; gap: 5px; }

/* ============================================================
   CONTROL REFERENCE
   ============================================================ */
.ref {
  margin-top: clamp(36px, 5vw, 54px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(22px, 3.2vw, 44px);
  align-items: start;
}
.ref-col__head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.ref-col__head h3 { font-size: 15px; font-weight: 600; letter-spacing: -0.01em; margin: 0; }
.ref-col__head span { font-family: var(--font-mono); font-size: 11px; color: var(--ink-3); letter-spacing: .04em; }

.ref-panel {
  border: 1px solid var(--glass-border);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--glass-ring), var(--shadow-soft);
}
.sc-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;          /* 键帽相对整行（名称 + 描述）垂直居中 */
  gap: 14px;
  padding: 13px 16px;
  border-bottom: 1px solid var(--line-soft);
  transition: background .15s ease;
}
.sc-row:last-child { border-bottom: none; }
.sc-row:hover { background: var(--glass-bg-strong); }
.sc-text { min-width: 0; }
.sc-name { display: block; font-size: 14px; font-weight: 600; letter-spacing: -0.01em; }
.sc-combo { display: flex; align-items: center; gap: 5px; flex: none; }
.sc-combo .lbl { font-family: var(--font-mono); font-size: 10.5px; color: var(--ink-3); margin-right: 3px; }
.sc-desc { font-size: 12.5px; color: var(--ink-2); margin-top: 5px; line-height: 1.4; }

/* toolbar pill mock */
.tb-pill {
  display: flex; align-items: center; gap: 6px;
  padding: 8px;
  border-radius: 999px;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg-strong);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--glass-ring), var(--shadow-glass);
  margin-bottom: 18px;
  overflow-x: auto;
}
.tb-btn {
  width: 32px; height: 32px; border-radius: 50%;
  display: grid; place-items: center; flex: none;
  border: 1px solid var(--line-soft);
  background: color-mix(in oklab, var(--surface) 55%, transparent);
  color: var(--ink-2);
  transition: background .15s ease, color .15s ease, transform .15s ease;
}
.tb-btn:hover { color: var(--ink); transform: translateY(-1px); background: var(--surface); }
.tb-btn svg { width: 15px; height: 15px; }
.tb-btn--glyph { font-size: 16px; line-height: 1; }
.tb-url {
  flex: 1; min-width: 96px; height: 30px; border-radius: 999px;
  background: color-mix(in oklab, var(--surface-sunk) 70%, transparent);
  border: 1px solid var(--line-soft);
  display: flex; align-items: center; gap: 7px; padding: 0 12px;
  font-family: var(--font-mono); font-size: 11px; color: var(--ink-3);
  white-space: nowrap; overflow: hidden;
}
.tb-url svg { width: 12px; height: 12px; flex: none; opacity: .7; }
.tb-legend { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 0 22px; }
.tb-leg { display: flex; gap: 11px; padding: 9px 0; border-bottom: 1px solid var(--line-soft); }
.tb-leg .ic { width: 26px; height: 26px; border-radius: 50%; flex: none; display: grid; place-items: center; border: 1px solid var(--line-soft); background: color-mix(in oklab, var(--surface) 50%, transparent); color: var(--ink-2); }
.tb-leg .ic svg { width: 13px; height: 13px; }
.tb-leg .ic--glyph { font-size: 14px; line-height: 1; }
.tb-leg > span:last-child { display: flex; flex-direction: column; min-width: 0; }
.tb-leg .name { display: block; font-size: 13px; font-weight: 600; letter-spacing: -0.01em; line-height: 1.2; }
.tb-leg .desc { display: block; font-size: 11.5px; color: var(--ink-3); margin-top: 3px; line-height: 1.35; }

@media (max-width: 860px) {
  .ref { grid-template-columns: 1fr; }
  .ref-col,
  .ref-panel,
  .tb-pill {
    min-width: 0;
    max-width: 100%;
  }
  .tb-legend { grid-template-columns: 1fr; }
}

/* ============================================================
   SKINS — re-theme the whole page via [data-skin] on <html>.
   warm   = original (default, no attribute / "warm")
   apple  = cool near-white, Apple liquid-glass, black CTA
   green  = white-dominant with a premium emerald primary
   Token + background overrides only — structure is untouched.
   ============================================================ */

/* ---------- APPLE WHITE ---------- */
:root[data-skin="apple"] {
  --bg:            oklch(0.988 0.003 250);
  --bg-2:          oklch(0.977 0.004 248);
  --surface:       oklch(1 0 0);
  --surface-sunk:  oklch(0.966 0.004 250);
  --line:          oklch(0.905 0.005 250);
  --line-soft:     oklch(0.938 0.004 250);
  --line-strong:   oklch(0.82 0.008 252);

  --ink:           oklch(0.23 0.012 262);
  --ink-2:         oklch(0.45 0.013 260);
  --ink-3:         oklch(0.605 0.011 258);
  --ink-4:         oklch(0.72 0.009 256);

  --btn-bg:        oklch(0.2 0.008 264);
  --btn-bg-hover:  oklch(0.3 0.01 264);
  --btn-ink:       oklch(0.99 0.002 250);

  --live:          oklch(0.62 0.21 25);   /* Apple red, for LIVE only */
  --accent:        oklch(0.6 0.17 252);   /* Apple blue, sparingly */

  --glass-bg:        color-mix(in oklab, white 60%, transparent);
  --glass-bg-strong: color-mix(in oklab, white 76%, transparent);
  --glass-blur:      saturate(180%) blur(24px);
  --glass-border:    rgba(255,255,255,.78);
  --glass-ring:      inset 0 1px 0 rgba(255,255,255,.96), inset 0 0 0 .5px rgba(255,255,255,.4), inset 0 -14px 28px -18px rgba(40,60,110,.12);

  --shadow-win:    0 1px 2px rgba(28,38,60,.06), 0 16px 38px -10px rgba(28,38,60,.16), 0 46px 88px -34px rgba(28,38,60,.22);
  --shadow-float:  0 1px 1px rgba(24,32,52,.12), 0 8px 16px -2px rgba(24,32,52,.18), 0 24px 48px -14px rgba(24,32,52,.28);
  --shadow-soft:   0 1px 2px rgba(28,38,60,.05), 0 10px 28px -12px rgba(28,38,60,.12);
  --shadow-glass:  0 1px 2px rgba(28,38,60,.07), 0 18px 40px -12px rgba(28,38,60,.2);
  --ring:          0 0 0 .5px rgba(30,40,60,.1);
}
:root[data-skin="apple"] body {
  background:
    /* TL: 参考版四角固定灰色光球，银色角点 -> 深灰球心 -> 透明消失 */
    radial-gradient(76% 64% at 0% -5%,
      oklch(0.968 0.004 250 / .94) 0%,
      oklch(0.89 0.006 251 / .82) 18%,
      oklch(0.735 0.009 253 / .72) 40%,
      oklch(0.735 0.009 253 / .36) 56%,
      transparent 78%),
    radial-gradient(76% 64% at 100% -5%,
      oklch(0.966 0.004 250 / .9) 0%,
      oklch(0.89 0.006 251 / .78) 18%,
      oklch(0.74 0.009 253 / .68) 40%,
      oklch(0.74 0.009 253 / .34) 56%,
      transparent 78%),
    radial-gradient(78% 66% at 100% 105%,
      oklch(0.966 0.004 250 / .88) 0%,
      oklch(0.89 0.006 251 / .74) 18%,
      oklch(0.735 0.009 253 / .66) 42%,
      oklch(0.735 0.009 253 / .32) 58%,
      transparent 80%),
    radial-gradient(76% 64% at 0% 105%,
      oklch(0.966 0.004 250 / .88) 0%,
      oklch(0.89 0.006 251 / .74) 18%,
      oklch(0.74 0.009 253 / .66) 42%,
      oklch(0.74 0.009 253 / .32) 58%,
      transparent 80%),
    var(--bg);
  background-attachment: fixed;
}
:root[data-skin="apple"] .scene {
  background:
    radial-gradient(120% 120% at 70% 4%, oklch(0.955 0.022 240) 0%, oklch(0.91 0.035 252) 46%, oklch(0.85 0.045 268) 100%);
}
:root[data-skin="apple"] .peek-stage {
  background: radial-gradient(120% 130% at 72% 0%, oklch(0.955 0.022 240) 0%, oklch(0.9 0.04 252) 52%, oklch(0.82 0.052 268) 100%);
}
:root[data-skin="apple"] .kbd {
  background: linear-gradient(rgba(255,255,255,.86), rgba(255,255,255,.55));
  border-bottom-color: color-mix(in oklab, var(--line-strong) 70%, transparent);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.98), inset 0 -3px 4px -2px rgba(40,60,110,.12), 0 1px 2px rgba(30,42,70,.14);
}

/* ---------- PREMIUM GREEN (EMERALD) ---------- */
:root[data-skin="green"] {
  --bg:            oklch(0.986 0.008 158);
  --bg-2:          oklch(0.975 0.012 158);
  --surface:       oklch(0.997 0.004 158);
  --surface-sunk:  oklch(0.966 0.012 158);
  --line:          oklch(0.9 0.015 158);
  --line-soft:     oklch(0.935 0.012 158);
  --line-strong:   oklch(0.83 0.022 158);

  --ink:           oklch(0.27 0.03 162);
  --ink-2:         oklch(0.45 0.03 160);
  --ink-3:         oklch(0.6 0.025 158);
  --ink-4:         oklch(0.71 0.02 157);

  --btn-bg:        oklch(0.44 0.1 159);   /* deep emerald CTA */
  --btn-bg-hover:  oklch(0.51 0.11 159);
  --btn-ink:       oklch(0.99 0.012 155);

  --live:          oklch(0.62 0.18 28);   /* keep a true "live" red */
  --accent:        oklch(0.55 0.12 159);  /* emerald accent */

  --glass-bg:        color-mix(in oklab, white 58%, transparent);
  --glass-bg-strong: color-mix(in oklab, white 73%, transparent);
  --glass-blur:      saturate(190%) blur(23px);
  --glass-border:    rgba(255,255,255,.74);
  --glass-ring:      inset 0 1px 0 rgba(255,255,255,.94), inset 0 0 0 .5px rgba(255,255,255,.4), inset 0 -14px 28px -18px rgba(20,86,58,.16);

  --shadow-win:    0 1px 2px rgba(18,52,38,.06), 0 16px 38px -10px rgba(18,52,38,.16), 0 46px 88px -34px rgba(18,52,38,.22);
  --shadow-float:  0 1px 1px rgba(16,46,34,.12), 0 8px 16px -2px rgba(16,46,34,.2), 0 24px 48px -14px rgba(16,46,34,.3);
  --shadow-soft:   0 1px 2px rgba(18,52,38,.05), 0 10px 28px -12px rgba(18,52,38,.13);
  --shadow-glass:  0 1px 2px rgba(18,52,38,.07), 0 18px 40px -12px rgba(18,52,38,.22);
  --ring:          0 0 0 .5px rgba(20,52,40,.1);
}
:root[data-skin="green"] body {
  background:
    radial-gradient(48% 42% at 8% 0%, oklch(0.93 0.06 158 / .55), transparent 70%),
    radial-gradient(46% 42% at 95% -2%, oklch(0.94 0.045 178 / .5), transparent 70%),
    radial-gradient(54% 50% at 90% 99%, oklch(0.935 0.05 142 / .44), transparent 72%),
    radial-gradient(50% 48% at 3% 97%, oklch(0.95 0.035 166 / .4), transparent 72%),
    var(--bg);
  background-attachment: fixed;
}
:root[data-skin="green"] .scene {
  background:
    radial-gradient(120% 120% at 70% 4%, oklch(0.95 0.03 158) 0%, oklch(0.9 0.05 160) 46%, oklch(0.83 0.065 166) 100%);
}
:root[data-skin="green"] .peek-stage {
  background: radial-gradient(120% 120% at 70% 4%, oklch(0.33 0.05 160), oklch(0.16 0.03 162));
}
:root[data-skin="green"] .kbd {
  background: linear-gradient(rgba(255,255,255,.84), rgba(255,255,255,.52));
  border-bottom-color: color-mix(in oklab, var(--line-strong) 70%, transparent);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.96), inset 0 -3px 4px -2px rgba(20,86,58,.14), 0 1px 2px rgba(20,60,42,.14);
}
:root[data-skin="green"] .boss-badge {
  border-color: color-mix(in oklab, var(--accent) 50%, var(--line-strong));
  background: color-mix(in oklab, var(--accent) 11%, transparent);
}

/* ============================================================
   SKIN SWITCHER — fixed floating control to compare looks
   ============================================================ */
.skin-switch {
  position: fixed;
  z-index: 200;
  left: 50%;
  bottom: 22px;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 5px;
  border-radius: 999px;
  background: var(--glass-bg-strong);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-ring), var(--shadow-glass);
}
.skin-switch__label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-3);
  padding: 0 8px 0 10px;
}
.skin-switch__btn {
  appearance: none;
  border: 1px solid transparent;
  background: transparent;
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--ink-2);
  padding: 7px 15px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  transition: color .18s ease, background .18s ease, box-shadow .2s ease;
}
.skin-switch__btn:hover { color: var(--ink); }
.skin-switch__sw {
  width: 11px; height: 11px; border-radius: 50%; flex: none;
  border: 1px solid rgba(0,0,0,.12);
}
.skin-switch__btn[data-for="apple"] .skin-switch__sw  { background: oklch(0.96 0.02 250); }
.skin-switch__btn[data-for="green"] .skin-switch__sw  { background: oklch(0.46 0.12 159); }
.skin-switch__btn[data-for="warm"]  .skin-switch__sw  { background: oklch(0.7 0.13 52); }
.skin-switch__btn[aria-pressed="true"] {
  color: var(--ink);
  background: var(--surface);
  box-shadow: 0 1px 2px rgba(20,30,50,.12), inset 0 0 0 .5px var(--glass-border);
}
@media (max-width: 560px) {
  .skin-switch__label { display: none; }
  .skin-switch__btn { padding: 7px 12px; font-size: 12.5px; }
}

/* ============================================================
   Landing: 真实 <img> 流帧替换设计期 <image-slot>
   设计稿用自定义 <image-slot> 占位；落地页直接用真图，
   补铺满 + object-fit，覆盖 .peek-window 仅命中 image-slot 的规则。
   ============================================================ */
.peeko-win img.slot,
.peek-window img.slot {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}